Jack Hansdampf
/
UIPEthernet_GSOE
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Revision 2:049ce85163c5, committed 2014-12-20
- Comitter:
- hudakz
- Date:
- Sat Dec 20 11:08:11 2014 +0000
- Parent:
- 1:01c2344f98a3
- Child:
- 3:5b17e4656dd0
- Commit message:
- 02 Name clash with "Ethernet" fixed for LPC1768
Changed in this revision
--- a/Dhcp.cpp Thu Nov 20 21:26:54 2014 +0000 +++ b/Dhcp.cpp Sat Dec 20 11:08:11 2014 +0000 @@ -3,8 +3,8 @@ #include <string.h> #include <stdlib.h> #include "Dhcp.h" -#include "util.h" -#include "uip_clock.h" +#include "utility/util.h" +#include "utility/uip_clock.h" /** * @brief
--- a/Dns.cpp Thu Nov 20 21:26:54 2014 +0000 +++ b/Dns.cpp Sat Dec 20 11:08:11 2014 +0000 @@ -1,15 +1,15 @@ // mbed DNS client for Enc28J60-based Ethernet shield // (c) Copyright 2009-2010 MCQN Ltd. // Released under Apache License, version 2.0 -#include "Udp.h" -#include "util.h" +#include "utility/Udp.h" +#include "utility/util.h" #include "Dns.h" #include <string.h> //#include <stdlib.h> #include "mbed.h" -#include "uip_clock.h" +#include "utility/uip_clock.h" #define SOCKET_NONE 255 // Various flags and header field values for a DNS message
--- a/UIPClient.cpp Thu Nov 20 21:26:54 2014 +0000
+++ b/UIPClient.cpp Sat Dec 20 11:08:11 2014 +0000
@@ -18,9 +18,9 @@
*/
extern "C"
{
-#include "uip-conf.h"
-#include "uip.h"
-#include "uip_arp.h"
+#include "utility/uip-conf.h"
+#include "utility/uip.h"
+#include "utility/uip_arp.h"
#include "string.h"
}
#include "UIPEthernet.h"
@@ -625,3 +625,4 @@
break;
}
}
+
--- a/UIPClient.h Thu Nov 20 21:26:54 2014 +0000
+++ b/UIPClient.h Sat Dec 20 11:08:11 2014 +0000
@@ -21,11 +21,11 @@
#include "ethernet_comp.h"
#include "Client.h"
- #include "mempool.h"
+ #include "utility/mempool.h"
extern "C"
{
- #include "uip.h"
+ #include "utility/uip.h"
}
#define UIP_SOCKET_DATALEN UIP_TCP_MSS
//#define UIP_SOCKET_NUMPACKETS UIP_RECEIVE_WINDOW/UIP_TCP_MSS+1
--- a/UIPEthernet.cpp Thu Nov 20 21:26:54 2014 +0000
+++ b/UIPEthernet.cpp Sat Dec 20 11:08:11 2014 +0000
@@ -21,17 +21,17 @@
#pragma once
#include <mbed.h>
#include "UIPEthernet.h"
-#include "Enc28J60Network.h"
+#include "utility/Enc28J60Network.h"
#if (defined UIPETHERNET_DEBUG || defined UIPETHERNET_DEBUG_CHKSUM)
#include "HardwareSerial.h"
#endif
extern "C"
{
-#include "uip-conf.h"
-#include "uip.h"
-#include "uip_arp.h"
-#include "uip_timer.h"
+#include "utility/uip-conf.h"
+#include "utility/uip.h"
+#include "utility/uip_arp.h"
+#include "utility/uip_timer.h"
}
#define ETH_HDR ((struct uip_eth_hdr*) &uip_buf[0])
--- a/UIPEthernet.h Thu Nov 20 21:26:54 2014 +0000
+++ b/UIPEthernet.h Sat Dec 20 11:08:11 2014 +0000
@@ -25,16 +25,16 @@
#include "ethernet_comp.h"
#include <mbed.h>
#include "Dhcp.h"
- #include "IPAddress.h"
- #include "Enc28J60Network.h"
+ #include "utility/IPAddress.h"
+ #include "utility/Enc28J60Network.h"
#include "UIPClient.h"
#include "UIPServer.h"
#include "UIPUdp.h"
extern "C"
{
- #include "uip_timer.h"
- #include "uip.h"
+ #include "utility/uip_timer.h"
+ #include "utility/uip.h"
}
//#define UIPETHERNET_DEBUG
//#define UIPETHERNET_DEBUG_CHKSUM
--- a/UIPServer.cpp Thu Nov 20 21:26:54 2014 +0000
+++ b/UIPServer.cpp Sat Dec 20 11:08:11 2014 +0000
@@ -20,7 +20,7 @@
#include "UIPServer.h"
extern "C"
{
-#include "uip-conf.h"
+#include "utility/uip-conf.h"
}
/**
* @brief
--- a/UIPServer.h Thu Nov 20 21:26:54 2014 +0000
+++ b/UIPServer.h Sat Dec 20 11:08:11 2014 +0000
@@ -20,7 +20,7 @@
#define UIPSERVER_H
#include "ethernet_comp.h"
- #include "Server.h"
+ #include "utility/Server.h"
#include "UIPClient.h"
class UIPServer :
--- a/UIPUdp.cpp Thu Nov 20 21:26:54 2014 +0000
+++ b/UIPUdp.cpp Sat Dec 20 11:08:11 2014 +0000
@@ -25,9 +25,9 @@
#endif
extern "C"
{
-#include "uip-conf.h"
-#include "uip.h"
-#include "uip_arp.h"
+#include "utility/uip-conf.h"
+#include "utility/uip.h"
+#include "utility/uip_arp.h"
}
#if UIP_UDP
#define UIP_ARPHDRSIZE 42
--- a/UIPUdp.h Thu Nov 20 21:26:54 2014 +0000
+++ b/UIPUdp.h Sat Dec 20 11:08:11 2014 +0000
@@ -22,10 +22,10 @@
#include "ethernet_comp.h"
#include "mbed.h"
#include <Udp.h>
- #include "mempool.h"
+ #include "utility/mempool.h"
extern "C"
{
- #include "uip.h"
+ #include "utility/uip.h"
}
#define UIP_UDP_MAXDATALEN 1500
#define UIP_UDP_PHYH_LEN UIP_LLH_LEN + UIP_IPUDPH_LEN
--- a/ethernet_comp.h Thu Nov 20 21:26:54 2014 +0000
+++ b/ethernet_comp.h Sat Dec 20 11:08:11 2014 +0000
@@ -1,7 +1,7 @@
#ifndef ETHERNET_COMP_H
#define ETHERNET_COMP_H
- #define Ethernet UIPEthernet
+// #define Ethernet UIPEthernet
#define EthernetClient UIPClient
#define EthernetServer UIPServer
#define EthernetUDP UIPUDP
--- a/utility/Client.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,48 +0,0 @@
-/*
- Client.h - Base class that provides Client
- Copyright (c) 2011 Adrian McEwen. All right reserved.
-
- Modified (ported to mbed) by Zoltan Hudak <hudakz@inbox.com>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-#ifndef client_h
- #define client_h
- //#include "Print.h"
- //#include "Stream.h"
- #include "IPAddress.h"
-
-//class Client : public Stream {
-class Client
-{
-public:
- virtual int connect(IPAddress ip, uint16_t port) = 0;
- virtual int connect(const char* host, uint16_t port) = 0;
- virtual size_t write(uint8_t) = 0;
- virtual size_t write(const uint8_t* buf, size_t size) = 0;
- virtual int available(void) = 0;
- virtual int read(void) = 0;
- virtual int read(uint8_t* buf, size_t size) = 0;
- virtual int peek(void) = 0;
- virtual void flush(void) = 0;
- virtual void stop(void) = 0;
- virtual uint8_t connected(void) = 0;
- virtual operator bool(void) = 0;
-protected:
- uint8_t* rawIPAddress(IPAddress& addr) { return addr.raw_address(); };
-};
-#endif
-
-
--- a/utility/Enc28J60Network.cpp Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,695 +0,0 @@
-/*
- Enc28J60Network.h
- UIPEthernet network driver for Microchip ENC28J60 Ethernet Interface.
-
- Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
- All rights reserved.
-
- based on enc28j60.c file from the AVRlib library by Pascal Stang.
- For AVRlib See http://www.procyonengineering.com/
-
- Modified (ported to mbed) by Zoltan Hudak <hudakz@inbox.com>
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#include "Enc28J60Network.h"
-#include "mbed.h"
-
-extern "C"
-{
-#include "enc28j60.h"
-#include "uip.h"
-}
-#define DMARUNNING 1
-#define DMANEWPACKET 2
-
-#define waitspi() while(!(SPSR & (1 << SPIF)))
- Enc28J60Network::Enc28J60Network(PinName mosi, PinName miso, PinName sclk, PinName cs) :
- MemoryPool(TXSTART_INIT + 1, TXSTOP_INIT - TXSTART_INIT),
-
- // 1 byte in between RX_STOP_INIT and pool to allow prepending of controlbyte
- bank(0xff),
- _spi(mosi, miso, sclk),
- _cs(cs) { }
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::init(uint8_t* macaddr) {
-
- // initialize SPI interface
-
- _spi.format(8, 0); // 8bit, mode 0
- _spi.frequency(7000000); // 7MHz
- wait(1); // 1 second for stable state
-
- // initialize I/O
- _cs = 1; // ss=0
-
- // initialize SPI interface
- // master mode and Fosc/2 clock:
- //SPCR = (1<<SPE)|(1<<MSTR);
- //SPSR |= (1<<SPI2X);
- // perform system reset
- writeOp(ENC28J60_SOFT_RESET, 0, ENC28J60_SOFT_RESET);
- wait(0.020); // 20ms
-
- // check CLKRDY bit to see if reset is complete
- // The CLKRDY does not work. See Rev. B4 Silicon Errata point. Just wait.
- //while(!(readReg(ESTAT) & ESTAT_CLKRDY));
- // do bank 0 stuff
- // initialize receive buffer
- // 16-bit transfers, must write low byte first
- // set receive buffer start address
- nextPacketPtr = RXSTART_INIT;
-
- // Rx start
- writeRegPair(ERXSTL, RXSTART_INIT);
-
- // set receive pointer address
- writeRegPair(ERXRDPTL, RXSTART_INIT);
-
- // RX end
- writeRegPair(ERXNDL, RXSTOP_INIT);
-
- // TX start
- //writeRegPair(ETXSTL, TXSTART_INIT);
- // TX end
- //writeRegPair(ETXNDL, TXSTOP_INIT);
- // do bank 1 stuff, packet filter:
- // For broadcast packets we allow only ARP packtets
- // All other packets should be unicast only for our mac (MAADR)
- //
- // The pattern to match on is therefore
- // Type ETH.DST
- // ARP BROADCAST
- // 06 08 -- ff ff ff ff ff ff -> ip checksum for theses bytes=f7f9
- // in binary these poitions are:11 0000 0011 1111
- // This is hex 303F->EPMM0=0x3f,EPMM1=0x30
- //TODO define specific pattern to receive dhcp-broadcast packages instead of setting ERFCON_BCEN!
- writeReg(ERXFCON, ERXFCON_UCEN | ERXFCON_CRCEN | ERXFCON_PMEN | ERXFCON_BCEN);
- writeRegPair(EPMM0, 0x303f);
- writeRegPair(EPMCSL, 0xf7f9);
-
- //
- //
- // do bank 2 stuff
- // enable MAC receive
- // and bring MAC out of reset (writes 0x00 to MACON2)
- writeRegPair(MACON1, MACON1_MARXEN | MACON1_TXPAUS | MACON1_RXPAUS);
-
- // enable automatic padding to 60bytes and CRC operations
- writeOp(ENC28J60_BIT_FIELD_SET, MACON3, MACON3_PADCFG0 | MACON3_TXCRCEN | MACON3_FRMLNEN);
-
- // set inter-frame gap (non-back-to-back)
- writeRegPair(MAIPGL, 0x0C12);
-
- // set inter-frame gap (back-to-back)
- writeReg(MABBIPG, 0x12);
-
- // Set the maximum packet size which the controller will accept
- // Do not send packets longer than MAX_FRAMELEN:
- writeRegPair(MAMXFLL, MAX_FRAMELEN);
-
- // do bank 3 stuff
- // write MAC address
- // NOTE: MAC address in ENC28J60 is byte-backward
- writeReg(MAADR5, macaddr[0]);
- writeReg(MAADR4, macaddr[1]);
- writeReg(MAADR3, macaddr[2]);
- writeReg(MAADR2, macaddr[3]);
- writeReg(MAADR1, macaddr[4]);
- writeReg(MAADR0, macaddr[5]);
-
- // no loopback of transmitted frames
- phyWrite(PHCON2, PHCON2_HDLDIS);
-
- // switch to bank 0
- setBank(ECON1);
-
- // enable interrutps
- writeOp(ENC28J60_BIT_FIELD_SET, EIE, EIE_INTIE | EIE_PKTIE);
-
- // enable packet reception
- writeOp(ENC28J60_BIT_FIELD_SET, ECON1, ECON1_RXEN);
- clkout(2); // change clkout from 6.25MHz to 12.5MHz
- wait(0.000060); // 60us
-
- //Configure leds
- phyWrite(PHLCON, 0x476);
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-memhandle Enc28J60Network::receivePacket(void) {
- uint16_t rxstat;
- uint16_t len;
- // check if a packet has been received and buffered
-
- //if( !(readReg(EIR) & EIR_PKTIF) ){
- // The above does not work. See Rev. B4 Silicon Errata point 6.
- if(readReg(EPKTCNT) != 0) {
- uint16_t readPtr = nextPacketPtr + 6;
- // Set the read pointer to the start of the received packet
-
- writeRegPair(ERDPTL, nextPacketPtr);
-
- // read the next packet pointer
- nextPacketPtr = readOp(ENC28J60_READ_BUF_MEM, 0);
- nextPacketPtr |= readOp(ENC28J60_READ_BUF_MEM, 0) << 8;
-
- // read the packet length (see datasheet page 43)
- len = readOp(ENC28J60_READ_BUF_MEM, 0);
- len |= readOp(ENC28J60_READ_BUF_MEM, 0) << 8;
- len -= 4; //remove the CRC count
-
- // read the receive status (see datasheet page 43)
- rxstat = readOp(ENC28J60_READ_BUF_MEM, 0);
- rxstat |= readOp(ENC28J60_READ_BUF_MEM, 0) << 8;
-
- // decrement the packet counter indicate we are done with this packet
- writeOp(ENC28J60_BIT_FIELD_SET, ECON2, ECON2_PKTDEC);
-
- // check CRC and symbol errors (see datasheet page 44, table 7-3):
- // The ERXFCON.CRCEN is set by default. Normally we should not
- // need to check this.
- if((rxstat & 0x80) != 0) {
- receivePkt.begin = readPtr;
- receivePkt.size = len;
- return UIP_RECEIVEBUFFERHANDLE;
- }
-
- // Move the RX read pointer to the start of the next received packet
- // This frees the memory we just read out
- setERXRDPT();
- }
-
- return(NOBLOCK);
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::setERXRDPT(void) {
- writeRegPair(ERXRDPTL, nextPacketPtr == RXSTART_INIT ? RXSTOP_INIT : nextPacketPtr - 1);
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-memaddress Enc28J60Network::blockSize(memhandle handle) {
- return handle == UIP_RECEIVEBUFFERHANDLE ? receivePkt.size : blocks[handle].size;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::sendPacket(memhandle handle) {
- memblock* packet = &blocks[handle];
- uint16_t start = packet->begin - 1;
- uint16_t end = start + packet->size;
-
- // backup data at control-byte position
- uint8_t data = readByte(start);
- // write control-byte (if not 0 anyway)
-
- if(data)
- writeByte(start, 0);
-
-#ifdef ENC28J60DEBUG
- pc.print("sendPacket(");
- pc.print(handle);
- pc.print(") [");
- pc.print(start);
- pc.print("-");
- pc.print(end);
- pc.println("]:");
- for(uint16_t i = start; i <= end; i++) {
- pc.print(readByte(i), HEX);
- pc.print(" ");
- }
-
- pc.println();
-#endif
- // TX start
-
- writeRegPair(ETXSTL, start);
-
- // Set the TXND pointer to correspond to the packet size given
- writeRegPair(ETXNDL, end);
-
- // send the contents of the transmit buffer onto the network
- writeOp(ENC28J60_BIT_FIELD_SET, ECON1, ECON1_TXRTS);
-
- // Reset the transmit logic problem. See Rev. B4 Silicon Errata point 12.
- if((readReg(EIR) & EIR_TXERIF)) {
- writeOp(ENC28J60_BIT_FIELD_CLR, ECON1, ECON1_TXRTS);
- }
-
- //restore data on control-byte position
- if(data)
- writeByte(start, data);
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-uint16_t Enc28J60Network::setReadPtr(memhandle handle, memaddress position, uint16_t len) {
- memblock* packet = handle == UIP_RECEIVEBUFFERHANDLE ? &receivePkt : &blocks[handle];
- memaddress start = packet->begin + position;
-
- writeRegPair(ERDPTL, start);
-
- if(len > packet->size - position)
- len = packet->size - position;
- return len;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-uint16_t Enc28J60Network::readPacket(memhandle handle, memaddress position, uint8_t* buffer, uint16_t len) {
- len = setReadPtr(handle, position, len);
- readBuffer(len, buffer);
- return len;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-uint16_t Enc28J60Network::writePacket(memhandle handle, memaddress position, uint8_t* buffer, uint16_t len) {
- memblock* packet = &blocks[handle];
- uint16_t start = packet->begin + position;
-
- writeRegPair(EWRPTL, start);
-
- if(len > packet->size - position)
- len = packet->size - position;
- writeBuffer(len, buffer);
- return len;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-uint8_t Enc28J60Network::readByte(uint16_t addr) {
- uint8_t result;
-
- writeRegPair(ERDPTL, addr);
-
- _cs = 0;
-
- // issue read command
- _spi.write(ENC28J60_READ_BUF_MEM);
-
- // read data
- result = _spi.write(0x00);
- _cs = 1;
- return(result);
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::writeByte(uint16_t addr, uint8_t data) {
- writeRegPair(EWRPTL, addr);
-
- _cs = 0;
-
- // issue write command
- _spi.write(ENC28J60_WRITE_BUF_MEM);
-
- // write data
- _spi.write(data);
- _cs = 1;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::copyPacket
-(
- memhandle dest_pkt,
- memaddress dest_pos,
- memhandle src_pkt,
- memaddress src_pos,
- uint16_t len
-) {
- memblock* dest = &blocks[dest_pkt];
- memblock* src = src_pkt == UIP_RECEIVEBUFFERHANDLE ? &receivePkt : &blocks[src_pkt];
- memblock_mv_cb(dest->begin + dest_pos, src->begin + src_pos, len);
-
- // Move the RX read pointer to the start of the next received packet
- // This frees the memory we just read out
- setERXRDPT();
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::memblock_mv_cb(uint16_t dest, uint16_t src, uint16_t len) {
-
- //as ENC28J60 DMA is unable to copy single bytes:
-
- if(len == 1) {
- writeByte(dest, readByte(src));
- }
- else {
-
- // calculate address of last byte
- len += src - 1;
-
- /* 1. Appropriately program the EDMAST, EDMAND
- and EDMADST register pairs. The EDMAST
- registers should point to the first byte to copy
- from, the EDMAND registers should point to the
- last byte to copy and the EDMADST registers
- should point to the first byte in the destination
- range. The destination range will always be
- linear, never wrapping at any values except from
- 8191 to 0 (the 8-Kbyte memory boundary).
- Extreme care should be taken when
- programming the start and end pointers to
- prevent a never ending DMA operation which
- would overwrite the entire 8-Kbyte buffer.
- */
- writeRegPair(EDMASTL, src);
- writeRegPair(EDMADSTL, dest);
-
- if((src <= RXSTOP_INIT) && (len > RXSTOP_INIT))
- len -= (RXSTOP_INIT - RXSTART_INIT);
- writeRegPair(EDMANDL, len);
-
- /*
- 2. If an interrupt at the end of the copy process is
- desired, set EIE.DMAIE and EIE.INTIE and
- clear EIR.DMAIF.
-
- 3. Verify that ECON1.CSUMEN is clear. */
- writeOp(ENC28J60_BIT_FIELD_CLR, ECON1, ECON1_CSUMEN);
-
- /* 4. Start the DMA copy by setting ECON1.DMAST. */
- writeOp(ENC28J60_BIT_FIELD_SET, ECON1, ECON1_DMAST);
-
- // wait until runnig DMA is completed
- while(readOp(ENC28J60_READ_CTRL_REG, ECON1) & ECON1_DMAST);
- }
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::freePacket(void) {
- setERXRDPT();
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-uint8_t Enc28J60Network::readOp(uint8_t op, uint8_t address) {
- uint8_t result;
-
- _cs = 0;
-
- // issue read command
- _spi.write(op | (address & ADDR_MASK));
-
- // read data
- result = _spi.write(0x00);
-
- // do dummy read if needed (for mac and mii, see datasheet page 29)
- if(address & 0x80)
- result = _spi.write(0x00);
-
- // release CS
- _cs = 1;
- return(result);
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::writeOp(uint8_t op, uint8_t address, uint8_t data) {
- _cs = 0;
-
- // issue write command
- _spi.write(op | (address & ADDR_MASK));
-
- // write data
- _spi.write(data);
- _cs = 1;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::readBuffer(uint16_t len, uint8_t* data) {
- _cs = 0;
-
- // issue read command
- _spi.write(ENC28J60_READ_BUF_MEM);
- while(len) {
- len--;
-
- // read data
- *data = _spi.write(0x00);
- data++;
- }
-
- *data = '\0';
- _cs = 1;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::writeBuffer(uint16_t len, uint8_t* data) {
- _cs = 0;
-
- // issue write command
- _spi.write(ENC28J60_WRITE_BUF_MEM);
- while(len) {
- len--;
-
- // write data
- _spi.write(*data);
- data++;
- }
-
- _cs = 1;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::setBank(uint8_t address) {
-
- // set the bank (if needed)
-
- if((address & BANK_MASK) != bank) {
-
- // set the bank
- writeOp(ENC28J60_BIT_FIELD_CLR, ECON1, (ECON1_BSEL1 | ECON1_BSEL0));
- writeOp(ENC28J60_BIT_FIELD_SET, ECON1, (address & BANK_MASK) >> 5);
- bank = (address & BANK_MASK);
- }
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-uint8_t Enc28J60Network::readReg(uint8_t address) {
-
- // set the bank
-
- setBank(address);
-
- // do the read
- return readOp(ENC28J60_READ_CTRL_REG, address);
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::writeReg(uint8_t address, uint8_t data) {
-
- // set the bank
-
- setBank(address);
-
- // do the write
- writeOp(ENC28J60_WRITE_CTRL_REG, address, data);
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::writeRegPair(uint8_t address, uint16_t data) {
-
- // set the bank
-
- setBank(address);
-
- // do the write
- writeOp(ENC28J60_WRITE_CTRL_REG, address, (data & 0xFF));
- writeOp(ENC28J60_WRITE_CTRL_REG, address + 1, (data) >> 8);
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::phyWrite(uint8_t address, uint16_t data) {
-
- // set the PHY register address
-
- writeReg(MIREGADR, address);
-
- // write the PHY data
- writeRegPair(MIWRL, data);
-
- // wait until the PHY write completes
- while(readReg(MISTAT) & MISTAT_BUSY) {
- wait(0.000015);
- }
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void Enc28J60Network::clkout(uint8_t clk) {
-
- //setup clkout: 2 is 12.5MHz:
-
- writeReg(ECOCON, clk & 0x7);
-}
-
-// read the revision of the chip:
-uint8_t Enc28J60Network::getRev(void) {
- return(readReg(EREVID));
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-uint16_t Enc28J60Network::chksum(uint16_t sum, memhandle handle, memaddress pos, uint16_t len) {
- uint8_t spdr;
- uint16_t t;
- uint16_t i;
-
- len = setReadPtr(handle, pos, len) - 1;
- _cs = 0;
-
- // issue read command
- spdr = _spi.write(ENC28J60_READ_BUF_MEM);
- for(i = 0; i < len; i += 2) {
-
- // read data
- spdr = _spi.write(0x00);
- t = spdr << 8;
- spdr = _spi.write(0x00);
- t += spdr;
- sum += t;
- if(sum < t) {
- sum++; /* carry */
- }
- }
-
- if(i == len) {
- spdr = _spi.write(0x00);
- t = (spdr << 8) + 0;
- sum += t;
- if(sum < t) {
- sum++; /* carry */
- }
- }
-
- _cs = 1;
-
- /* Return sum in host byte order. */
- return sum;
-}
-
--- a/utility/Enc28J60Network.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,81 +0,0 @@
-/*
- Enc28J60Network.h
- UIPEthernet network driver for Microchip ENC28J60 Ethernet Interface.
-
- Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
- All rights reserved.
-
- inspired by enc28j60.c file from the AVRlib library by Pascal Stang.
- For AVRlib See http://www.procyonengineering.com/
-
- Modified (ported to mbed) by Zoltan Hudak <hudakz@inbox.com>
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef ENC28J60NETWORK_H_
- #define ENC28J60NETWORK_H_
-
- #include "mbed.h"
- #include "mempool.h"
-
- #define UIP_RECEIVEBUFFERHANDLE 0xff
-
-//#define ENC28J60DEBUG
-
-/*
- * Received from ip-header, arp etc...
- * when tcp/udp -> tcp/udp-callback -> assign new packet to connection
- */
-class Enc28J60Network :
- public MemoryPool
-{
-private:
- SPI _spi;
- DigitalOut _cs;
- uint16_t nextPacketPtr;
- uint8_t bank;
-
- struct memblock receivePkt;
-
- uint8_t readOp(uint8_t op, uint8_t address);
- void writeOp(uint8_t op, uint8_t address, uint8_t data);
- uint16_t setReadPtr(memhandle handle, memaddress position, uint16_t len);
- void setERXRDPT(void);
- void readBuffer(uint16_t len, uint8_t* data);
- void writeBuffer(uint16_t len, uint8_t* data);
- uint8_t readByte(uint16_t addr);
- void writeByte(uint16_t addr, uint8_t data);
- void setBank(uint8_t address);
- uint8_t readReg(uint8_t address);
- void writeReg(uint8_t address, uint8_t data);
- void writeRegPair(uint8_t address, uint16_t data);
- void phyWrite(uint8_t address, uint16_t data);
- void clkout(uint8_t clk);
- uint8_t getRev(void);
-protected:
- void memblock_mv_cb(memaddress dest, memaddress src, memaddress size);
-public:
- Enc28J60Network(PinName mosi, PinName miso, PinName sclk, PinName cs);
- void init(uint8_t* macaddr);
- memhandle receivePacket(void);
- void freePacket(void);
- memaddress blockSize(memhandle handle);
- void sendPacket(memhandle handle);
- uint16_t readPacket(memhandle handle, memaddress position, uint8_t* buffer, uint16_t len);
- uint16_t writePacket(memhandle handle, memaddress position, uint8_t* buffer, uint16_t len);
- void copyPacket(memhandle dest, memaddress dest_pos, memhandle src, memaddress src_pos, uint16_t len);
- uint16_t chksum(uint16_t sum, memhandle handle, memaddress pos, uint16_t len);
-};
-#endif /* ENC28J60NETWORK_H_ */
-
--- a/utility/IPAddress.cpp Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,112 +0,0 @@
-/*
- IPAddress.cpp - Base class that provides IPAddress
- Copyright (c) 2011 Adrian McEwen. All right reserved.
-
- Modified (ported to mbed) by Zoltan Hudak <hudakz@inbox.com>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-#include <mbed.h>
-#include <IPAddress.h>
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-IPAddress::IPAddress(void) {
- memset(_address, 0, sizeof(_address));
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-IPAddress::IPAddress(uint8_t first_octet, uint8_t second_octet, uint8_t third_octet, uint8_t fourth_octet) {
- _address[0] = first_octet;
- _address[1] = second_octet;
- _address[2] = third_octet;
- _address[3] = fourth_octet;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-IPAddress::IPAddress(uint32_t address) {
- memcpy(_address, &address, sizeof(_address));
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-IPAddress::IPAddress(const uint8_t* address) {
- memcpy(_address, address, sizeof(_address));
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-IPAddress &IPAddress::operator=(const uint8_t* address) {
- memcpy(_address, address, sizeof(_address));
- return *this;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-IPAddress &IPAddress::operator=(uint32_t address) {
- memcpy(_address, (const uint8_t*) &address, sizeof(_address));
- return *this;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-bool IPAddress::operator==(const uint8_t* addr) const
-{
- return memcmp(addr, _address, sizeof(_address)) == 0;
-}
-
-//size_t IPAddress::printTo(Print& p) const
-//{
-// size_t n = 0;
-// for (int i =0; i < 3; i++)
-// {
-// n += p.print(_address[i], DEC);
-// n += p.print('.');
-// }
-// n += p.print(_address[3], DEC);
-// return n;
-//}
-//
-
--- a/utility/IPAddress.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,73 +0,0 @@
-/*
- IPAddress.h - Base class that provides IPAddress
- Copyright (c) 2011 Adrian McEwen. All right reserved.
-
- Modified (ported to mbed) by Zoltan Hudak <hudakz@inbox.com>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-#ifndef IPAddress_h
- #define IPAddress_h
-
- #include <stdint.h>
-
-//#include <Printable.h>
-
-// A class to make it easier to handle and pass around IP addresses
-
-//class IPAddress : public Printable {
-class IPAddress
-{
-private:
- uint8_t _address[4]; // IPv4 address
-
- // Access the raw byte array containing the address. Because this returns a pointer
- // to the internal structure rather than a copy of the address this function should only
- // be used when you know that the usage of the returned uint8_t* will be transient and not
-
- // stored.
- uint8_t* raw_address(void) { return _address; };
-public:
- // Constructors
- IPAddress(void);
- IPAddress(uint8_t first_octet, uint8_t second_octet, uint8_t third_octet, uint8_t fourth_octet);
- IPAddress(uint32_t address);
- IPAddress(const uint8_t* address);
-
- // Overloaded cast operator to allow IPAddress objects to be used where a pointer
- // to a four-byte uint8_t array is expected
- operator uint32_t(void) const { return *((uint32_t*)_address); };
- bool operator==(const IPAddress& addr) const { return(*((uint32_t*)_address)) == (*((uint32_t*)addr._address)); };
- bool operator==(const uint8_t* addr) const;
-
- // Overloaded index operator to allow getting and setting individual octets of the address
- uint8_t operator[](int index) const { return _address[index]; };
- uint8_t &operator[](int index) { return _address[index]; };
-
- // Overloaded copy operators to allow initialisation of IPAddress objects from other types
- IPAddress &operator =(const uint8_t* address);
- IPAddress &operator =(uint32_t address);
-
- // virtual size_t printTo(Print& p) const;
- friend class EthernetClass;
- friend class UDP;
- friend class Client;
- friend class Server;
- friend class DhcpClass;
- friend class DNSClient;
-};
-
-const IPAddress INADDR_NONE(0, 0, 0, 0);
-#endif
--- a/utility/Server.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,30 +0,0 @@
-/*
- Server.h - Base class that provides Server
- Copyright (c) 2011 Adrian McEwen. All right reserved.
-
- Modified (ported to mbed) by Zoltan Hudak <hudakz@inbox.com>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-#ifndef server_h
- #define server_h
-
-//class Server : public Print {
-class Server
-{
-public:
- virtual void begin(void) = 0;
-};
-#endif
--- a/utility/Udp.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,96 +0,0 @@
-/*
- * Udp.cpp: Library to send/receive UDP packets.
- *
- * NOTE: UDP is fast, but has some important limitations (thanks to Warren Gray for mentioning these)
- * 1) UDP does not guarantee the order in which assembled UDP packets are received. This
- * might not happen often in practice, but in larger network topologies, a UDP
- * packet can be received out of sequence.
- * 2) UDP does not guard against lost packets - so packets *can* disappear without the sender being
- * aware of it. Again, this may not be a concern in practice on small local networks.
- * For more information, see http://www.cafeaulait.org/course/week12/35.html
- *
- * MIT License:
- * Copyright (c) 2008 Bjoern Hartmann
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * bjoern@cs.stanford.edu 12/30/2008
- */
-#ifndef udp_h
- #define udp_h
-
- #include <mbed.h>
- #include <IPAddress.h>
-
-//class UDP : public Stream {
-class UDP
-{
-public:
- virtual uint8_t begin(uint16_t) = 0; // initialize, start listening on specified port. Returns 1 if successful, 0 if there are no sockets available to use
- virtual void stop(void) = 0; // Finish with the UDP socket
-
- // Sending UDP packets
- // Start building up a packet to send to the remote host specific in ip and port
- // Returns 1 if successful, 0 if there was a problem with the supplied IP address or port
- virtual int beginPacket(IPAddress ip, uint16_t port) = 0;
-
- // Start building up a packet to send to the remote host specific in host and port
- // Returns 1 if successful, 0 if there was a problem resolving the hostname or port
- virtual int beginPacket(const char* host, uint16_t port) = 0;
-
- // Finish off this packet and send it
- // Returns 1 if the packet was sent successfully, 0 if there was an error
- virtual int endPacket(void) = 0;
-
- // Write a single byte into the packet
- virtual size_t write(uint8_t) = 0;
-
- // Write size bytes from buffer into the packet
- virtual size_t write(const uint8_t* buffer, size_t size) = 0;
-
- // Start processing the next available incoming packet
- // Returns the size of the packet in bytes, or 0 if no packets are available
- virtual int parsePacket(void) = 0;
-
- // Number of bytes remaining in the current packet
- virtual int available(void) = 0;
-
- // Read a single byte from the current packet
- virtual int read(void) = 0;
-
- // Read up to len bytes from the current packet and place them into buffer
- // Returns the number of bytes read, or 0 if none are available
- virtual int read(unsigned char* buffer, size_t len) = 0;
-
- // Read up to len characters from the current packet and place them into buffer
- // Returns the number of characters read, or 0 if none are available
- virtual int read(char* buffer, size_t len) = 0;
-
- // Return the next byte from the current packet without moving on to the next byte
- virtual int peek(void) = 0;
- virtual void flush(void) = 0; // Finish reading the current packet
-
- // Return the IP address of the host who sent the current incoming packet
- virtual IPAddress remoteIP(void) = 0;
-
- // Return the port of the host who sent the current incoming packet
- virtual uint16_t remotePort(void) = 0;
-protected:
- uint8_t* rawIPAddress(IPAddress& addr) { return addr.raw_address(); };
-};
-#endif
--- a/utility/clock-arch.c Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,35 +0,0 @@
-/*
- clock-arch.c - mbed implementation of uIP clock device.
- Copyright (c) 2010 Adam Nielsen <malvineous@shikadi.net>
- All rights reserved.
-
- Modified (ported to mbed) by Zoltan Hudak <hudakz@inbox.com>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#include <time.h>
-#include "clock-arch.h"
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-clock_time_t clock_time(void) {
- return(clock_time_t) time(NULL);
-}
-
-
--- a/utility/clock-arch.h Thu Nov 20 21:26:54 2014 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,25 +0,0 @@ -/* - clock-arch.h - mbed implementation of uIP clock device. - Copyright (c) 2010 Adam Nielsen <malvineous@shikadi.net> - All rights reserved. - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ -#ifndef clock_h_ - #define clock_h_ - -typedef unsigned long clock_time_t; - #define CLOCK_CONF_SECOND 1 -#endif
--- a/utility/enc28j60.h Thu Nov 20 21:26:54 2014 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,283 +0,0 @@ -/***************************************************************************** -* -* Title : Microchip ENC28J60 Ethernet Interface Driver -* Author : Pascal Stang (c)2005 -* Modified by Norbert Truchsess -* Copyright: GPL V2 -* -*This driver provides initialization and transmit/receive -*functions for the Microchip ENC28J60 10Mb Ethernet Controller and PHY. -*This chip is novel in that it is a full MAC+PHY interface all in a 28-pin -*chip, using an SPI interface to the host processor. -* -* -*****************************************************************************/ -#ifndef ENC28J60_H - #define ENC28J60_H - #include <inttypes.h> - -// ENC28J60 Control Registers - -// Control register definitions are a combination of address, -// bank number, and Ethernet/MAC/PHY indicator bits. -// - Register address (bits 0-4) -// - Bank number (bits 5-6) -// - MAC/PHY indicator (bit 7) - #define ADDR_MASK 0x1F - #define BANK_MASK 0x60 - #define SPRD_MASK 0x80 -// All-bank registers - - #define EIE 0x1B - #define EIR 0x1C - #define ESTAT 0x1D - #define ECON2 0x1E - #define ECON1 0x1F -// Bank 0 registers - - #define ERDPTL (0x00 | 0x00) - #define ERDPTH (0x01 | 0x00) - #define EWRPTL (0x02 | 0x00) - #define EWRPTH (0x03 | 0x00) - #define ETXSTL (0x04 | 0x00) - #define ETXSTH (0x05 | 0x00) - #define ETXNDL (0x06 | 0x00) - #define ETXNDH (0x07 | 0x00) - #define ERXSTL (0x08 | 0x00) - #define ERXSTH (0x09 | 0x00) - #define ERXNDL (0x0A | 0x00) - #define ERXNDH (0x0B | 0x00) - #define ERXRDPTL (0x0C | 0x00) - #define ERXRDPTH (0x0D | 0x00) - #define ERXWRPTL (0x0E | 0x00) - #define ERXWRPTH (0x0F | 0x00) - #define EDMASTL (0x10 | 0x00) - #define EDMASTH (0x11 | 0x00) - #define EDMANDL (0x12 | 0x00) - #define EDMANDH (0x13 | 0x00) - #define EDMADSTL (0x14 | 0x00) - #define EDMADSTH (0x15 | 0x00) - #define EDMACSL (0x16 | 0x00) - #define EDMACSH (0x17 | 0x00) -// Bank 1 registers - - #define EHT0 (0x00 | 0x20) - #define EHT1 (0x01 | 0x20) - #define EHT2 (0x02 | 0x20) - #define EHT3 (0x03 | 0x20) - #define EHT4 (0x04 | 0x20) - #define EHT5 (0x05 | 0x20) - #define EHT6 (0x06 | 0x20) - #define EHT7 (0x07 | 0x20) - #define EPMM0 (0x08 | 0x20) - #define EPMM1 (0x09 | 0x20) - #define EPMM2 (0x0A | 0x20) - #define EPMM3 (0x0B | 0x20) - #define EPMM4 (0x0C | 0x20) - #define EPMM5 (0x0D | 0x20) - #define EPMM6 (0x0E | 0x20) - #define EPMM7 (0x0F | 0x20) - #define EPMCSL (0x10 | 0x20) - #define EPMCSH (0x11 | 0x20) - #define EPMOL (0x14 | 0x20) - #define EPMOH (0x15 | 0x20) - #define EWOLIE (0x16 | 0x20) - #define EWOLIR (0x17 | 0x20) - #define ERXFCON (0x18 | 0x20) - #define EPKTCNT (0x19 | 0x20) -// Bank 2 registers - - #define MACON1 (0x00 | 0x40 | 0x80) - #define MACON2 (0x01 | 0x40 | 0x80) - #define MACON3 (0x02 | 0x40 | 0x80) - #define MACON4 (0x03 | 0x40 | 0x80) - #define MABBIPG (0x04 | 0x40 | 0x80) - #define MAIPGL (0x06 | 0x40 | 0x80) - #define MAIPGH (0x07 | 0x40 | 0x80) - #define MACLCON1 (0x08 | 0x40 | 0x80) - #define MACLCON2 (0x09 | 0x40 | 0x80) - #define MAMXFLL (0x0A | 0x40 | 0x80) - #define MAMXFLH (0x0B | 0x40 | 0x80) - #define MAPHSUP (0x0D | 0x40 | 0x80) - #define MICON (0x11 | 0x40 | 0x80) - #define MICMD (0x12 | 0x40 | 0x80) - #define MIREGADR (0x14 | 0x40 | 0x80) - #define MIWRL (0x16 | 0x40 | 0x80) - #define MIWRH (0x17 | 0x40 | 0x80) - #define MIRDL (0x18 | 0x40 | 0x80) - #define MIRDH (0x19 | 0x40 | 0x80) -// Bank 3 registers - - #define MAADR1 (0x00 | 0x60 | 0x80) - #define MAADR0 (0x01 | 0x60 | 0x80) - #define MAADR3 (0x02 | 0x60 | 0x80) - #define MAADR2 (0x03 | 0x60 | 0x80) - #define MAADR5 (0x04 | 0x60 | 0x80) - #define MAADR4 (0x05 | 0x60 | 0x80) - #define EBSTSD (0x06 | 0x60) - #define EBSTCON (0x07 | 0x60) - #define EBSTCSL (0x08 | 0x60) - #define EBSTCSH (0x09 | 0x60) - #define MISTAT (0x0A | 0x60 | 0x80) - #define EREVID (0x12 | 0x60) - #define ECOCON (0x15 | 0x60) - #define EFLOCON (0x17 | 0x60) - #define EPAUSL (0x18 | 0x60) - #define EPAUSH (0x19 | 0x60) -// PHY registers - - #define PHCON1 0x00 - #define PHSTAT1 0x01 - #define PHHID1 0x02 - #define PHHID2 0x03 - #define PHCON2 0x10 - #define PHSTAT2 0x11 - #define PHIE 0x12 - #define PHIR 0x13 - #define PHLCON 0x14 - -// ENC28J60 ERXFCON Register Bit Definitions - - #define ERXFCON_UCEN 0x80 - #define ERXFCON_ANDOR 0x40 - #define ERXFCON_CRCEN 0x20 - #define ERXFCON_PMEN 0x10 - #define ERXFCON_MPEN 0x08 - #define ERXFCON_HTEN 0x04 - #define ERXFCON_MCEN 0x02 - #define ERXFCON_BCEN 0x01 -// ENC28J60 EIE Register Bit Definitions - - #define EIE_INTIE 0x80 - #define EIE_PKTIE 0x40 - #define EIE_DMAIE 0x20 - #define EIE_LINKIE 0x10 - #define EIE_TXIE 0x08 - #define EIE_WOLIE 0x04 - #define EIE_TXERIE 0x02 - #define EIE_RXERIE 0x01 -// ENC28J60 EIR Register Bit Definitions - - #define EIR_PKTIF 0x40 - #define EIR_DMAIF 0x20 - #define EIR_LINKIF 0x10 - #define EIR_TXIF 0x08 - #define EIR_WOLIF 0x04 - #define EIR_TXERIF 0x02 - #define EIR_RXERIF 0x01 -// ENC28J60 ESTAT Register Bit Definitions - - #define ESTAT_INT 0x80 - #define ESTAT_LATECOL 0x10 - #define ESTAT_RXBUSY 0x04 - #define ESTAT_TXABRT 0x02 - #define ESTAT_CLKRDY 0x01 -// ENC28J60 ECON2 Register Bit Definitions - - #define ECON2_AUTOINC 0x80 - #define ECON2_PKTDEC 0x40 - #define ECON2_PWRSV 0x20 - #define ECON2_VRPS 0x08 -// ENC28J60 ECON1 Register Bit Definitions - - #define ECON1_TXRST 0x80 - #define ECON1_RXRST 0x40 - #define ECON1_DMAST 0x20 - #define ECON1_CSUMEN 0x10 - #define ECON1_TXRTS 0x08 - #define ECON1_RXEN 0x04 - #define ECON1_BSEL1 0x02 - #define ECON1_BSEL0 0x01 -// ENC28J60 MACON1 Register Bit Definitions - - #define MACON1_LOOPBK 0x10 - #define MACON1_TXPAUS 0x08 - #define MACON1_RXPAUS 0x04 - #define MACON1_PASSALL 0x02 - #define MACON1_MARXEN 0x01 -// ENC28J60 MACON2 Register Bit Definitions - - #define MACON2_MARST 0x80 - #define MACON2_RNDRST 0x40 - #define MACON2_MARXRST 0x08 - #define MACON2_RFUNRST 0x04 - #define MACON2_MATXRST 0x02 - #define MACON2_TFUNRST 0x01 -// ENC28J60 MACON3 Register Bit Definitions - - #define MACON3_PADCFG2 0x80 - #define MACON3_PADCFG1 0x40 - #define MACON3_PADCFG0 0x20 - #define MACON3_TXCRCEN 0x10 - #define MACON3_PHDRLEN 0x08 - #define MACON3_HFRMLEN 0x04 - #define MACON3_FRMLNEN 0x02 - #define MACON3_FULDPX 0x01 -// ENC28J60 MICMD Register Bit Definitions - - #define MICMD_MIISCAN 0x02 - #define MICMD_MIIRD 0x01 -// ENC28J60 MISTAT Register Bit Definitions - - #define MISTAT_NVALID 0x04 - #define MISTAT_SCAN 0x02 - #define MISTAT_BUSY 0x01 -// ENC28J60 PHY PHCON1 Register Bit Definitions - - #define PHCON1_PRST 0x8000 - #define PHCON1_PLOOPBK 0x4000 - #define PHCON1_PPWRSV 0x0800 - #define PHCON1_PDPXMD 0x0100 -// ENC28J60 PHY PHSTAT1 Register Bit Definitions - - #define PHSTAT1_PFDPX 0x1000 - #define PHSTAT1_PHDPX 0x0800 - #define PHSTAT1_LLSTAT 0x0004 - #define PHSTAT1_JBSTAT 0x0002 -// ENC28J60 PHY PHCON2 Register Bit Definitions - - #define PHCON2_FRCLINK 0x4000 - #define PHCON2_TXDIS 0x2000 - #define PHCON2_JABBER 0x0400 - #define PHCON2_HDLDIS 0x0100 - -// ENC28J60 Packet Control Byte Bit Definitions - - #define PKTCTRL_PHUGEEN 0x08 - #define PKTCTRL_PPADEN 0x04 - #define PKTCTRL_PCRCEN 0x02 - #define PKTCTRL_POVERRIDE 0x01 - -// SPI operation codes - - #define ENC28J60_READ_CTRL_REG 0x00 - #define ENC28J60_READ_BUF_MEM 0x3A - #define ENC28J60_WRITE_CTRL_REG 0x40 - #define ENC28J60_WRITE_BUF_MEM 0x7A - #define ENC28J60_BIT_FIELD_SET 0x80 - #define ENC28J60_BIT_FIELD_CLR 0xA0 - #define ENC28J60_SOFT_RESET 0xFF - -// The RXSTART_INIT should be zero. See Rev. B4 Silicon Errata - -// buffer boundaries applied to internal 8K ram -// the entire available packet buffer space is allocated -// -// start with recbuf at 0/ - #define RXSTART_INIT 0x0 -// receive buffer end. make sure this is an odd value ( See Rev. B1,B4,B5,B7 Silicon Errata 'Memory (Ethernet Buffer)') - - #define RXSTOP_INIT (0x1FFF - 0x1800) -// start TX buffer RXSTOP_INIT+1 - - #define TXSTART_INIT (RXSTOP_INIT + 1) -// stp TX buffer at end of mem - - #define TXSTOP_INIT 0x1FFF -// - -// max frame length which the conroller will accept: - #define MAX_FRAMELEN 1500 // (note: maximum ethernet frame length would be 1518) - -//#define MAX_FRAMELEN 600 -#endif
--- a/utility/mempool.cpp Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,190 +0,0 @@
-/*
- mempool.cpp - sleek implementation of a memory pool
- Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
- All rights reserved.
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#include "mempool.h"
-#include <string.h>
-
-#define POOLOFFSET 1
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-MemoryPool::MemoryPool(memaddress start, memaddress size) {
- memset(&blocks[0], 0, sizeof(blocks));
- blocks[POOLSTART].begin = start;
- blocks[POOLSTART].size = 0;
- blocks[POOLSTART].nextblock = NOBLOCK;
- poolsize = size;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-memhandle MemoryPool::allocBlock(memaddress size) {
- memblock* best = NULL;
- memhandle cur = POOLSTART;
- memblock* block = &blocks[POOLSTART];
- memaddress bestsize = poolsize + 1;
-
- do
- {
- memhandle next = block->nextblock;
- memaddress freesize = (next == NOBLOCK ? blocks[POOLSTART].begin + poolsize : blocks[next].begin) -
- block->begin -
- block->size;
- if(freesize == size) {
- best = &blocks[cur];
- goto found;
- }
-
- if(freesize > size && freesize < bestsize) {
- bestsize = freesize;
- best = &blocks[cur];
- }
-
- if(next == NOBLOCK) {
- if(best)
- goto found;
- else
- goto collect;
- }
-
- block = &blocks[next];
- cur = next;
- } while(true);
-
-collect:
- {
- cur = POOLSTART;
- block = &blocks[POOLSTART];
-
- memhandle next;
- while((next = block->nextblock) != NOBLOCK) {
- memaddress dest = block->begin + block->size;
- memblock* nextblock = &blocks[next];
- memaddress* src = &nextblock->begin;
- if(dest != *src)
- {
-#ifdef MEMBLOCK_MV
- memblock_mv_cb(dest, *src, nextblock->size);
-#endif
- *src = dest;
- }
-
- block = nextblock;
- }
-
- if(blocks[POOLSTART].begin + poolsize - block->begin - block->size >= size)
- best = block;
- else
- goto notfound;
- }
-
-found:
- {
- block = &blocks[POOLOFFSET];
- for(cur = POOLOFFSET; cur < NUM_MEMBLOCKS + POOLOFFSET; cur++) {
- if(block->size) {
- block++;
- continue;
- }
-
- memaddress address = best->begin + best->size;
-#ifdef MEMBLOCK_ALLOC
- MEMBLOCK_ALLOC(address, size);
-#endif
- block->begin = address;
- block->size = size;
- block->nextblock = best->nextblock;
- best->nextblock = cur;
- return cur;
- }
- }
-
-notfound:
- return NOBLOCK;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void MemoryPool::freeBlock(memhandle handle) {
- memblock* b = &blocks[POOLSTART];
-
- do
- {
- memhandle next = b->nextblock;
- if(next == handle) {
- memblock* f = &blocks[next];
-#ifdef MEMBLOCK_FREE
- MEMBLOCK_FREE(f->begin, f->size);
-#endif
- b->nextblock = f->nextblock;
- f->size = 0;
- f->nextblock = NOBLOCK;
- return;
- }
-
- if(next == NOBLOCK)
- return;
- b = &blocks[next];
- } while(true);
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void MemoryPool::resizeBlock(memhandle handle, memaddress position) {
- memblock* block = &blocks[handle];
- block->begin += position;
- block->size -= position;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void MemoryPool::resizeBlock(memhandle handle, memaddress position, memaddress size) {
- memblock* block = &blocks[handle];
- block->begin += position;
- block->size = size;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-memaddress MemoryPool::blockSize(memhandle handle) {
- return blocks[handle].size;
-}
--- a/utility/mempool.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,65 +0,0 @@
-/*
- mempool.h - sleek implementation of a memory pool
- Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
- All rights reserved.
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef MEMPOOL_H
- #define MEMPOOL_H
-
- #include <inttypes.h>
-
- #define POOLSTART 0
- #define NOBLOCK 0
-
- #include "mempool_conf.h"
-
-//#ifdef MEMBLOCK_MV
-
-//#define memblock_mv_cb(dest,src,size) MEMBLOCK_MV(dest,src,size)
-//#endif
- #ifdef MEMBLOCK_ALLOC
- #define memblock_alloc_cb(address, size) MEMBLOCK_ALLOC(address, size)
- #endif
- #ifdef MEMBLOCK_FREE
- #define memblock_free_cb(address, size) MEMBLOCK_FREE(address, size)
- #endif
-struct memblock
-{
- memaddress begin;
- memaddress size;
- memhandle nextblock;
-};
-
-class MemoryPool
-{
- #ifdef MEMPOOLTEST_H
- friend class MemoryPoolTest;
- #endif
-protected:
- memaddress poolsize;
- struct memblock blocks[NUM_MEMBLOCKS + 1];
- #ifdef MEMBLOCK_MV
- virtual void memblock_mv_cb(memaddress dest, memaddress src, memaddress size) = 0;
- #endif
-public:
- MemoryPool(memaddress start, memaddress size);
- memhandle allocBlock(memaddress);
- void freeBlock(memhandle);
- void resizeBlock(memhandle handle, memaddress position);
- void resizeBlock(memhandle handle, memaddress position, memaddress size);
- memaddress blockSize(memhandle);
-};
-#endif
--- a/utility/mempool_conf.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,25 +0,0 @@
-#ifndef MEMPOOLCONF_H
- #define MEMPOOLCONF_H
- #include "uipethernet-conf.h"
-extern "C"
-{
- #include "uipopt.h"
-}
- #include <inttypes.h>
-
-typedef uint16_t memaddress;
-typedef uint8_t memhandle;
-
- #if UIP_SOCKET_NUMPACKETS and UIP_CONNS
- #define NUM_TCP_MEMBLOCKS (UIP_SOCKET_NUMPACKETS * 2) * UIP_CONNS
- #else
- #define NUM_TCP_MEMBLOCKS 0
- #endif
- #if UIP_UDP_NUMPACKETS and UIP_UDP_CONNS
- #define NUM_UDP_MEMBLOCKS (UIP_UDP_NUMPACKETS + 1) * UIP_UDP_CONNS
- #else
- #define NUM_UDP_MEMBLOCKS 0
- #endif
- #define NUM_MEMBLOCKS (NUM_TCP_MEMBLOCKS + NUM_UDP_MEMBLOCKS)
- #define MEMBLOCK_MV
-#endif
--- a/utility/uip-conf.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,190 +0,0 @@
-/**
- * UIPEthernet Project-specific configuration options
- * Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
- * @{
- *
- * uIP has a number of configuration options that can be overridden
- * for each project. These are kept in a project-specific uip-conf.h
- * file and all configuration names have the prefix UIP_CONF.
- */
-/*
- * Copyright (c) 2006, Swedish Institute of Computer Science.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Institute nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * This file is part of the uIP TCP/IP stack
- *
- */
-#ifndef __UIP_CONF_H__
- #define __UIP_CONF_H__
-
- #include <inttypes.h>
- #include "uipethernet-conf.h"
-
-/**
- * 8 bit datatype
- *
- * This typedef defines the 8-bit type used throughout uIP.
- *
- * \hideinitializer
- */
-typedef uint8_t u8_t;
-
-/**
- * 16 bit datatype
- *
- * This typedef defines the 16-bit type used throughout uIP.
- *
- * \hideinitializer
- */
-typedef uint16_t u16_t;
-
-/**
- * Statistics datatype
- *
- * This typedef defines the dataype used for keeping statistics in
- * uIP.
- *
- * \hideinitializer
- */
-typedef unsigned short uip_stats_t;
-
-/**
- * Maximum number of TCP connections.
- * (see uipethernet-conf.h)
- * \hideinitializer
- *
- * #define UIP_CONF_MAX_CONNECTIONS 4
- */
-
-/**
- * Maximum number of listening TCP ports.
- *
- * \hideinitializer
- */
- #define UIP_CONF_MAX_LISTENPORTS 4
-
-/**
- * uIP buffer size.
- *
- * \hideinitializer
- */
-
- #define UIP_CONF_BUFFER_SIZE 98
-//#define UIP_CONF_BUFFER_SIZE 118
-
-/**
- * The TCP maximum segment size.
- *
- * This is should not be to set to more than
- * UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN.
- */
- #define UIP_CONF_TCP_MSS 512
-
-/**
- * The size of the advertised receiver's window.
- *
- * Should be set low (i.e., to the size of the uip_buf buffer) is the
- * application is slow to process incoming data, or high (32768 bytes)
- * if the application processes data quickly.
- *
- * \hideinitializer
- */
-
- #define UIP_CONF_RECEIVE_WINDOW 512
-
-/**
- * CPU byte order.
- *
- * \hideinitializer
- */
-
- #define UIP_CONF_BYTE_ORDER LITTLE_ENDIAN
-
-/**
- * Logging on or off
- *
- * \hideinitializer
- */
-
- #define UIP_CONF_LOGGING 0
-
-/**
- * UDP support on or off
- * (see uipethernet-conf.h)
- * \hideinitializer
- *
- * #define UIP_CONF_UDP 1
- *
- * #define UIP_CONF_UDP_CONNS 4
- */
-
-/**
- * UDP checksums on or off
- *
- * \hideinitializer
- */
- #define UIP_CONF_UDP_CHECKSUMS 1
-
-/**
- * UDP Broadcast (receive) on or off
- * (see uipethernet-conf.h)
- * \hideinitializer
- * #define UIP_CONF_BROADCAST 1
- */
-
-/**
- * uIP statistics on or off
- *
- * \hideinitializer
- */
- #define UIP_CONF_STATISTICS 0
-
-// SLIP
-
-//#define UIP_CONF_LLH_LEN 0
-typedef struct uipethernet_state
-{
- void* user;
-} uip_tcp_appstate_t;
-
-void uipethernet_appcall(void);
-
- #define UIP_APPCALL uipethernet_appcall
-
-typedef struct uipudp_state
-{
- void* user;
-} uip_udp_appstate_t;
-
-void uipudp_appcall(void);
-
- #define UIP_UDP_APPCALL uipudp_appcall
-
- #define CC_REGISTER_ARG register
-
- #define UIP_ARCH_CHKSUM 1
-#endif /* __UIP_CONF_H__ */
--- a/utility/uip-neighbor.c Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,163 +0,0 @@
-/*
- * Copyright (c) 2006, Swedish Institute of Computer Science.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Institute nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * This file is part of the uIP TCP/IP stack
- *
- * $Id: uip-neighbor.c,v 1.2 2006/06/12 08:00:30 adam Exp $
- */
-/**
- * \file
- * Database of link-local neighbors, used by IPv6 code and
- * to be used by a future ARP code rewrite.
- * \author
- * Adam Dunkels <adam@sics.se>
- */
-#include "uip-neighbor.h"
-
-#include <string.h>
-
-#define MAX_TIME 128
-
-#ifdef UIP_NEIGHBOR_CONF_ENTRIES
- #define ENTRIES UIP_NEIGHBOR_CONF_ENTRIES
-#else /* UIP_NEIGHBOR_CONF_ENTRIES */
-
- #define ENTRIES 8
-#endif /* UIP_NEIGHBOR_CONF_ENTRIES */
-
-struct neighbor_entry
-{
- uip_ipaddr_t ipaddr;
- struct uip_neighbor_addr addr;
- u8_t time;
-};
-static struct neighbor_entry entries[ENTRIES];
-
-/*---------------------------------------------------------------------------*/
-void uip_neighbor_init(void) {
- int i;
-
- for(i = 0; i < ENTRIES; ++i) {
- entries[i].time = MAX_TIME;
- }
-}
-
-/*---------------------------------------------------------------------------*/
-void uip_neighbor_periodic(void) {
- int i;
-
- for(i = 0; i < ENTRIES; ++i) {
- if(entries[i].time < MAX_TIME) {
- entries[i].time++;
- }
- }
-}
-
-/*---------------------------------------------------------------------------*/
-void uip_neighbor_add(uip_ipaddr_t ipaddr, struct uip_neighbor_addr* addr) {
- int i, oldest;
- u8_t oldest_time;
-
- printf
- (
- "Adding neighbor with link address %02x:%02x:%02x:%02x:%02x:%02x\n",
- addr->addr.addr[0],
- addr->addr.addr[1],
- addr->addr.addr[2],
- addr->addr.addr[3],
- addr->addr.addr[4],
- addr->addr.addr[5]
- );
-
- /* Find the first unused entry or the oldest used entry. */
- oldest_time = 0;
- oldest = 0;
- for(i = 0; i < ENTRIES; ++i) {
- if(entries[i].time == MAX_TIME) {
- oldest = i;
- break;
- }
-
- if(uip_ipaddr_cmp(entries[i].ipaddr, addr)) {
- oldest = i;
- break;
- }
-
- if(entries[i].time > oldest_time) {
- oldest = i;
- oldest_time = entries[i].time;
- }
- }
-
- /* Use the oldest or first free entry (either pointed to by the
- "oldest" variable). */
- entries[oldest].time = 0;
- uip_ipaddr_copy(entries[oldest].ipaddr, ipaddr);
- memcpy(&entries[oldest].addr, addr, sizeof(struct uip_neighbor_addr));
-}
-
-/*---------------------------------------------------------------------------*/
-static struct neighbor_entry* find_entry(uip_ipaddr_t ipaddr) {
- int i;
-
- for(i = 0; i < ENTRIES; ++i) {
- if(uip_ipaddr_cmp(entries[i].ipaddr, ipaddr)) {
- return &entries[i];
- }
- }
-
- return NULL;
-}
-
-/*---------------------------------------------------------------------------*/
-void uip_neighbor_update(uip_ipaddr_t ipaddr) {
- struct neighbor_entry* e;
-
- e = find_entry(ipaddr);
- if(e != NULL) {
- e->time = 0;
- }
-}
-
-/*---------------------------------------------------------------------------*/
-struct uip_neighbor_addr* uip_neighbor_lookup(uip_ipaddr_t ipaddr) {
- struct neighbor_entry* e;
-
- e = find_entry(ipaddr);
- if(e != NULL) {
-
- /* printf("Lookup neighbor with link address %02x:%02x:%02x:%02x:%02x:%02x\n",
- e->addr.addr.addr[0], e->addr.addr.addr[1], e->addr.addr.addr[2], e->addr.addr.addr[3],
- e->addr.addr.addr[4], e->addr.addr.addr[5]);*/
- return &e->addr;
- }
-
- return NULL;
-}
-
-/*---------------------------------------------------------------------------*/
--- a/utility/uip-neighbor.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,59 +0,0 @@
-/*
- * Copyright (c) 2006, Swedish Institute of Computer Science.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Institute nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * This file is part of the uIP TCP/IP stack
- *
- * $Id: uip-neighbor.h,v 1.2 2006/06/12 08:00:30 adam Exp $
- */
-/**
- * \file
- * Header file for database of link-local neighbors, used by
- * IPv6 code and to be used by future ARP code.
- * \author
- * Adam Dunkels <adam@sics.se>
- */
-#ifndef __UIP_NEIGHBOR_H__
- #define __UIP_NEIGHBOR_H__
-
- #include "uip.h"
-
-struct uip_neighbor_addr
-{
- #if UIP_NEIGHBOR_CONF_ADDRTYPE
- UIP_NEIGHBOR_CONF_ADDRTYPE addr;
- #else
- struct uip_eth_addr addr;
- #endif
-};
-
-void uip_neighbor_init(void);
-void uip_neighbor_add(uip_ipaddr_t ipaddr, struct uip_neighbor_addr* addr);
-void uip_neighbor_update(uip_ipaddr_t ipaddr);
-struct uip_neighbor_addr* uip_neighbor_lookup(uip_ipaddr_t ipaddr);
-void uip_neighbor_periodic(void);
-#endif /* __UIP-NEIGHBOR_H__ */
--- a/utility/uip.c Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,2054 +0,0 @@
-#define DEBUG_PRINTF(...) /*printf(__VA_ARGS__)*/
-
-/**
- * \defgroup uip The uIP TCP/IP stack
- * @{
- *
- * uIP is an implementation of the TCP/IP protocol stack intended for
- * small 8-bit and 16-bit microcontrollers.
- *
- * uIP provides the necessary protocols for Internet communication,
- * with a very small code footprint and RAM requirements - the uIP
- * code size is on the order of a few kilobytes and RAM usage is on
- * the order of a few hundred bytes.
- */
-
-/**
- * \file
- * The uIP TCP/IP stack code.
- * \author Adam Dunkels <adam@dunkels.com>
- */
-/*
- * Copyright (c) 2001-2003, Adam Dunkels.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
- * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * This file is part of the uIP TCP/IP stack.
- *
- * $Id: uip.c,v 1.65 2006/06/11 21:46:39 adam Exp $
- *
- */
-/*
- * uIP is a small implementation of the IP, UDP and TCP protocols (as
- * well as some basic ICMP stuff). The implementation couples the IP,
- * UDP, TCP and the application layers very tightly. To keep the size
- * of the compiled code down, this code frequently uses the goto
- * statement. While it would be possible to break the uip_process()
- * function into many smaller functions, this would increase the code
- * size because of the overhead of parameter passing and the fact that
- * the optimier would not be as efficient.
- *
- * The principle is that we have a small buffer, called the uip_buf,
- * in which the device driver puts an incoming packet. The TCP/IP
- * stack parses the headers in the packet, and calls the
- * application. If the remote host has sent data to the application,
- * this data is present in the uip_buf and the application read the
- * data from there. It is up to the application to put this data into
- * a byte stream if needed. The application will not be fed with data
- * that is out of sequence.
- *
- * If the application whishes to send data to the peer, it should put
- * its data into the uip_buf. The uip_appdata pointer points to the
- * first available byte. The TCP/IP stack will calculate the
- * checksums, and fill in the necessary header fields and finally send
- * the packet back to the peer.
-*/
-#include "uip.h"
-#include "uipopt.h"
-#include "uip_arch.h"
-
-#if UIP_CONF_IPV6
- #include "uip-neighbor.h"
-#endif /* UIP_CONF_IPV6 */
-
-#include <string.h>
-
-/*---------------------------------------------------------------------------*/
-
-/* Variable definitions. */
-/* The IP address of this host. If it is defined to be fixed (by
- setting UIP_FIXEDADDR to 1 in uipopt.h), the address is set
- here. Otherwise, the address */
-#if UIP_FIXEDADDR > 0
-const uip_ipaddr_t uip_hostaddr = { HTONS((UIP_IPADDR0 << 8) | UIP_IPADDR1), HTONS
- ((UIP_IPADDR2 << 8) | UIP_IPADDR3) };
-const uip_ipaddr_t uip_draddr =
-{
- HTONS((UIP_DRIPADDR0 << 8) | UIP_DRIPADDR1),
- HTONS((UIP_DRIPADDR2 << 8) | UIP_DRIPADDR3)
-};
-const uip_ipaddr_t uip_netmask =
-{
- HTONS((UIP_NETMASK0 << 8) | UIP_NETMASK1),
- HTONS((UIP_NETMASK2 << 8) | UIP_NETMASK3)
-};
-#else
-uip_ipaddr_t uip_hostaddr, uip_draddr, uip_netmask;
-#endif /* UIP_FIXEDADDR */
-
-static const uip_ipaddr_t all_ones_addr =
-#if UIP_CONF_IPV6
-{ 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff };
-#else /* UIP_CONF_IPV6 */
-{
- 0xffff, 0xffff
-};
-#endif /* UIP_CONF_IPV6 */
-static const uip_ipaddr_t all_zeroes_addr =
-#if UIP_CONF_IPV6
-{ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 };
-#else /* UIP_CONF_IPV6 */
-{
- 0x0000, 0x0000
-};
-#endif /* UIP_CONF_IPV6 */
-
-#if UIP_FIXEDETHADDR
-const struct uip_eth_addr uip_ethaddr =
-{
- { UIP_ETHADDR0, UIP_ETHADDR1, UIP_ETHADDR2, UIP_ETHADDR3, UIP_ETHADDR4, UIP_ETHADDR5 }
-};
-#else
-struct uip_eth_addr uip_ethaddr = { { 0, 0, 0, 0, 0, 0 } };
-#endif
-#ifndef UIP_CONF_EXTERNAL_BUFFER
-u8_t uip_buf[UIP_BUFSIZE + 2]; /* The packet buffer that contains
- incoming packets. */
-#endif /* UIP_CONF_EXTERNAL_BUFFER */
-
-void* uip_appdata; /* The uip_appdata pointer points to
- application data. */
-void* uip_sappdata; /* The uip_appdata pointer points to
- the application data which is to
- be sent. */
-#if UIP_URGDATA > 0
-void* uip_urgdata; /* The uip_urgdata pointer points to
- urgent data (out-of-band data), if
- present. */
-u16_t uip_urglen, uip_surglen;
-#endif /* UIP_URGDATA > 0 */
-
-u16_t uip_len, uip_slen;
-
-/* The uip_len is either 8 or 16 bits,
- depending on the maximum packet
- size. */
-u8_t uip_flags; /* The uip_flags variable is used for
- communication between the TCP/IP stack
- and the application program. */
-struct uip_conn* uip_conn; /* uip_conn always points to the current
- connection. */
-
-struct uip_conn uip_conns[UIP_CONNS];
-
-/* The uip_conns array holds all TCP
- connections. */
-u16_t uip_listenports[UIP_LISTENPORTS];
-
-/* The uip_listenports list all currently
- listning ports. */
-#if UIP_UDP
-struct uip_udp_conn* uip_udp_conn;
-struct uip_udp_conn uip_udp_conns[UIP_UDP_CONNS];
-#endif /* UIP_UDP */
-
-static u16_t ipid; /* Ths ipid variable is an increasing
- number that is used for the IP ID
- field. */
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void uip_setipid(u16_t id) {
- ipid = id;
-}
-
-static u8_t iss[4]; /* The iss variable is used for the TCP
- initial sequence number. */
-
-#if UIP_ACTIVE_OPEN
-static u16_t lastport; /* Keeps track of the last port used for
- a new connection. */
-#endif /* UIP_ACTIVE_OPEN */
-
-/* Temporary variables. */
-
-u8_t uip_acc32[4];
-static u8_t c, opt;
-static u16_t tmp16;
-
-/* Structures and definitions. */
-
-#define TCP_FIN 0x01
-#define TCP_SYN 0x02
-#define TCP_RST 0x04
-#define TCP_PSH 0x08
-#define TCP_ACK 0x10
-#define TCP_URG 0x20
-#define TCP_CTL 0x3f
-
-#define TCP_OPT_END 0 /* End of TCP options list */
-
-#define TCP_OPT_NOOP 1 /* "No-operation" TCP option */
-
-#define TCP_OPT_MSS 2 /* Maximum segment size TCP option */
-
-#define TCP_OPT_MSS_LEN 4 /* Length of TCP MSS option. */
-
-#define ICMP_ECHO_REPLY 0
-#define ICMP_ECHO 8
-
-#define ICMP6_ECHO_REPLY 129
-#define ICMP6_ECHO 128
-#define ICMP6_NEIGHBOR_SOLICITATION 135
-#define ICMP6_NEIGHBOR_ADVERTISEMENT 136
-
-#define ICMP6_FLAG_S (1 << 6)
-#define ICMP6_OPTION_SOURCE_LINK_ADDRESS 1
-#define ICMP6_OPTION_TARGET_LINK_ADDRESS 2
-
-/* Macros. */
-
-#define BUF ((struct uip_tcpip_hdr*) &uip_buf[UIP_LLH_LEN])
-#define FBUF ((struct uip_tcpip_hdr*) &uip_reassbuf[0])
-#define ICMPBUF ((struct uip_icmpip_hdr*) &uip_buf[UIP_LLH_LEN])
-#define UDPBUF ((struct uip_udpip_hdr*) &uip_buf[UIP_LLH_LEN])
-#if UIP_STATISTICS == 1
-struct uip_stats uip_stat;
- #define UIP_STAT(s) s
-#else
- #define UIP_STAT(s)
-#endif /* UIP_STATISTICS == 1 */
-
-#if UIP_LOGGING == 1
- #include <stdio.h>
-void uip_log(char* msg);
- #define UIP_LOG(m) uip_log(m)
-#else
- #define UIP_LOG(m)
-#endif /* UIP_LOGGING == 1 */
-
-#if !UIP_ARCH_ADD32
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void uip_add32(u8_t* op32, u16_t op16) {
- uip_acc32[3] = op32[3] + (op16 & 0xff);
- uip_acc32[2] = op32[2] + (op16 >> 8);
- uip_acc32[1] = op32[1];
- uip_acc32[0] = op32[0];
-
- if(uip_acc32[2] < (op16 >> 8)) {
- ++uip_acc32[1];
- if(uip_acc32[1] == 0) {
- ++uip_acc32[0];
- }
- }
-
- if(uip_acc32[3] < (op16 & 0xff)) {
- ++uip_acc32[2];
- if(uip_acc32[2] == 0) {
- ++uip_acc32[1];
- if(uip_acc32[1] == 0) {
- ++uip_acc32[0];
- }
- }
- }
-}
-#endif /* UIP_ARCH_ADD32 */
-
-#if !UIP_ARCH_CHKSUM
-
-/*---------------------------------------------------------------------------*/
-static u16_t chksum(u16_t sum, const u8_t* data, u16_t len) {
- u16_t t;
- const u8_t* dataptr;
- const u8_t* last_byte;
-
- dataptr = data;
- last_byte = data + len - 1;
-
- while(dataptr < last_byte) {
-
- /* At least two more bytes */
- t = (dataptr[0] << 8) + dataptr[1];
- sum += t;
- if(sum < t) {
- sum++; /* carry */
- }
-
- dataptr += 2;
- }
-
- if(dataptr == last_byte) {
- t = (dataptr[0] << 8) + 0;
- sum += t;
- if(sum < t) {
- sum++; /* carry */
- }
- }
-
- /* Return sum in host byte order. */
- return sum;
-}
-
-/*---------------------------------------------------------------------------*/
-u16_t uip_chksum(u16_t* data, u16_t len) {
- return htons(chksum(0, (u8_t*)data, len));
-}
-
-/*---------------------------------------------------------------------------*/
- #ifndef UIP_ARCH_IPCHKSUM
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-u16_t uip_ipchksum(void) {
- u16_t sum;
-
- sum = chksum(0, &uip_buf[UIP_LLH_LEN], UIP_IPH_LEN);
- DEBUG_PRINTF("uip_ipchksum: sum 0x%04x\n", sum);
- return(sum == 0) ? 0xffff : htons(sum);
-}
- #endif
-
-/*---------------------------------------------------------------------------*/
-static u16_t upper_layer_chksum(u8_t proto) {
- u16_t upper_layer_len;
- u16_t sum;
-
- #if UIP_CONF_IPV6
- upper_layer_len = (((u16_t) (BUF->len[0]) << 8) + BUF->len[1]);
- #else /* UIP_CONF_IPV6 */
- upper_layer_len = (((u16_t) (BUF->len[0]) << 8) + BUF->len[1]) - UIP_IPH_LEN;
- #endif /* UIP_CONF_IPV6 */
-
- /* First sum pseudoheader. */
-
- /* IP protocol and length fields. This addition cannot carry. */
- sum = upper_layer_len + proto;
-
- /* Sum IP source and destination addresses. */
- sum = chksum(sum, (u8_t*) &BUF->srcipaddr[0], 2 * sizeof(uip_ipaddr_t));
-
- /* Sum TCP header and data. */
- sum = chksum(sum, &uip_buf[UIP_IPH_LEN + UIP_LLH_LEN], upper_layer_len);
-
- return(sum == 0) ? 0xffff : htons(sum);
-}
-
-/*---------------------------------------------------------------------------*/
- #if UIP_CONF_IPV6
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-u16_t uip_icmp6chksum(void) {
- return upper_layer_chksum(UIP_PROTO_ICMP6);
-}
- #endif /* UIP_CONF_IPV6 */
-
-/*---------------------------------------------------------------------------*/
-u16_t uip_tcpchksum(void) {
- return upper_layer_chksum(UIP_PROTO_TCP);
-}
-
-/*---------------------------------------------------------------------------*/
- #if UIP_UDP_CHECKSUMS
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-u16_t uip_udpchksum(void) {
- return upper_layer_chksum(UIP_PROTO_UDP);
-}
- #endif /* UIP_UDP_CHECKSUMS */
-#endif /* UIP_ARCH_CHKSUM */
-
-/*---------------------------------------------------------------------------*/
-void uip_init(void) {
- for(c = 0; c < UIP_LISTENPORTS; ++c) {
- uip_listenports[c] = 0;
- }
-
- for(c = 0; c < UIP_CONNS; ++c) {
- uip_conns[c].tcpstateflags = UIP_CLOSED;
- }
-
-#if UIP_ACTIVE_OPEN
- lastport = 1024;
-#endif /* UIP_ACTIVE_OPEN */
-
-#if UIP_UDP
- for(c = 0; c < UIP_UDP_CONNS; ++c) {
- uip_udp_conns[c].lport = 0;
- }
-#endif /* UIP_UDP */
-
- /* IPv4 initialization. */
-
-#if UIP_FIXEDADDR == 0
- /* uip_hostaddr[0] = uip_hostaddr[1] = 0;*/
-#endif /* UIP_FIXEDADDR */
-}
-
-/*---------------------------------------------------------------------------*/
-#if UIP_ACTIVE_OPEN
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-struct uip_conn* uip_connect(uip_ipaddr_t* ripaddr, u16_t rport) {
- register struct uip_conn* conn, *cconn;
-
- /* Find an unused local port. */
-
-again:
- ++lastport;
-
- if(lastport >= 32000) {
- lastport = 4096;
- }
-
- /* Check if this port is already in use, and if so try to find
- another one. */
- for(c = 0; c < UIP_CONNS; ++c) {
- conn = &uip_conns[c];
- if(conn->tcpstateflags != UIP_CLOSED && conn->lport == htons(lastport)) {
- goto again;
- }
- }
-
- conn = 0;
- for(c = 0; c < UIP_CONNS; ++c) {
- cconn = &uip_conns[c];
- if(cconn->tcpstateflags == UIP_CLOSED) {
- conn = cconn;
- break;
- }
-
- if(cconn->tcpstateflags == UIP_TIME_WAIT) {
- if(conn == 0 || cconn->timer > conn->timer) {
- conn = cconn;
- }
- }
- }
-
- if(conn == 0) {
- return 0;
- }
-
- conn->tcpstateflags = UIP_SYN_SENT;
-
- conn->snd_nxt[0] = iss[0];
- conn->snd_nxt[1] = iss[1];
- conn->snd_nxt[2] = iss[2];
- conn->snd_nxt[3] = iss[3];
-
- conn->initialmss = conn->mss = UIP_TCP_MSS;
-
- conn->len = 1; /* TCP length of the SYN is one. */
- conn->nrtx = 0;
- conn->timer = 1; /* Send the SYN next time around. */
- conn->rto = UIP_RTO;
- conn->sa = 0;
- conn->sv = 16; /* Initial value of the RTT variance. */
- conn->lport = htons(lastport);
- conn->rport = rport;
- uip_ipaddr_copy(&conn->ripaddr, ripaddr);
-
- return conn;
-}
-#endif /* UIP_ACTIVE_OPEN */
-
-/*---------------------------------------------------------------------------*/
-
-#if UIP_UDP
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-struct uip_udp_conn* uip_udp_new(uip_ipaddr_t* ripaddr, u16_t rport) {
- register struct uip_udp_conn* conn;
-
- /* Find an unused local port. */
-
-again:
- ++lastport;
-
- if(lastport >= 32000) {
- lastport = 4096;
- }
-
- for(c = 0; c < UIP_UDP_CONNS; ++c) {
- if(uip_udp_conns[c].lport == htons(lastport)) {
- goto again;
- }
- }
-
- conn = 0;
- for(c = 0; c < UIP_UDP_CONNS; ++c) {
- if(uip_udp_conns[c].lport == 0) {
- conn = &uip_udp_conns[c];
- break;
- }
- }
-
- if(conn == 0) {
- return 0;
- }
-
- conn->lport = HTONS(lastport);
- conn->rport = rport;
- if(ripaddr == NULL) {
- memset(conn->ripaddr, 0, sizeof(uip_ipaddr_t));
- }
- else {
- uip_ipaddr_copy(&conn->ripaddr, ripaddr);
- }
-
- conn->ttl = UIP_TTL;
-
- return conn;
-}
-#endif /* UIP_UDP */
-
-/*---------------------------------------------------------------------------*/
-void uip_unlisten(u16_t port) {
- for(c = 0; c < UIP_LISTENPORTS; ++c) {
- if(uip_listenports[c] == port) {
- uip_listenports[c] = 0;
- return;
- }
- }
-}
-
-/*---------------------------------------------------------------------------*/
-void uip_listen(u16_t port) {
- for(c = 0; c < UIP_LISTENPORTS; ++c) {
- if(uip_listenports[c] == 0) {
- uip_listenports[c] = port;
- return;
- }
- }
-}
-
-/*---------------------------------------------------------------------------*/
-/* XXX: IP fragment reassembly: not well-tested. */
-#if UIP_REASSEMBLY && !UIP_CONF_IPV6
- #define UIP_REASS_BUFSIZE (UIP_BUFSIZE - UIP_LLH_LEN)
-static u8_t uip_reassbuf[UIP_REASS_BUFSIZE];
-static u8_t uip_reassbitmap[UIP_REASS_BUFSIZE / (8 * 8)];
-static const u8_t bitmap_bits[8] = { 0xff, 0x7f, 0x3f, 0x1f, 0x0f, 0x07, 0x03, 0x01 };
-static u16_t uip_reasslen;
-static u8_t uip_reassflags;
- #define UIP_REASS_FLAG_LASTFRAG 0x01
-static u8_t uip_reasstmr;
-
- #define IP_MF 0x20
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-static u8_t uip_reass(void) {
- u16_t offset, len;
- u16_t i;
-
- /* If ip_reasstmr is zero, no packet is present in the buffer, so we
- write the IP header of the fragment into the reassembly
- buffer. The timer is updated with the maximum age. */
-
- if(uip_reasstmr == 0) {
- memcpy(uip_reassbuf, &BUF->vhl, UIP_IPH_LEN);
- uip_reasstmr = UIP_REASS_MAXAGE;
- uip_reassflags = 0;
-
- /* Clear the bitmap. */
- memset(uip_reassbitmap, 0, sizeof(uip_reassbitmap));
- }
-
- /* Check if the incoming fragment matches the one currently present
- in the reasembly buffer. If so, we proceed with copying the
- fragment into the buffer. */
- if
- (
- BUF->srcipaddr[0] == FBUF->srcipaddr[0]
- && BUF->srcipaddr[1] == FBUF->srcipaddr[1]
- && BUF->destipaddr[0] == FBUF->destipaddr[0]
- && BUF->destipaddr[1] == FBUF->destipaddr[1]
- && BUF->ipid[0] == FBUF->ipid[0]
- && BUF->ipid[1] == FBUF->ipid[1]
- ) {
- len = (BUF->len[0] << 8) + BUF->len[1] - (BUF->vhl & 0x0f) * 4;
- offset = (((BUF->ipoffset[0] & 0x3f) << 8) + BUF->ipoffset[1]) * 8;
-
- /* If the offset or the offset + fragment length overflows the
- reassembly buffer, we discard the entire packet. */
- if(offset > UIP_REASS_BUFSIZE || offset + len > UIP_REASS_BUFSIZE) {
- uip_reasstmr = 0;
- goto nullreturn;
- }
-
- /* Copy the fragment into the reassembly buffer, at the right
- offset. */
- memcpy(&uip_reassbuf[UIP_IPH_LEN + offset], (char*)BUF + (int)((BUF->vhl & 0x0f) * 4), len);
-
- /* Update the bitmap. */
- if(offset / (8 * 8) == (offset + len) / (8 * 8)) {
-
- /* If the two endpoints are in the same byte, we only update
- that byte. */
- uip_reassbitmap[offset / (8 * 8)] |= bitmap_bits[(offset / 8) & 7] &~bitmap_bits[((offset + len) / 8) & 7];
- }
- else {
-
- /* If the two endpoints are in different bytes, we update the
- bytes in the endpoints and fill the stuff inbetween with
- 0xff. */
- uip_reassbitmap[offset / (8 * 8)] |= bitmap_bits[(offset / 8) & 7];
- for(i = 1 + offset / (8 * 8); i < (offset + len) / (8 * 8); ++i) {
- uip_reassbitmap[i] = 0xff;
- }
-
- uip_reassbitmap[(offset + len) / (8 * 8)] |= ~bitmap_bits[((offset + len) / 8) & 7];
- }
-
- /* If this fragment has the More Fragments flag set to zero, we
- know that this is the last fragment, so we can calculate the
- size of the entire packet. We also set the
- IP_REASS_FLAG_LASTFRAG flag to indicate that we have received
- the final fragment. */
- if((BUF->ipoffset[0] & IP_MF) == 0) {
- uip_reassflags |= UIP_REASS_FLAG_LASTFRAG;
- uip_reasslen = offset + len;
- }
-
- /* Finally, we check if we have a full packet in the buffer. We do
- this by checking if we have the last fragment and if all bits
- in the bitmap are set. */
- if(uip_reassflags & UIP_REASS_FLAG_LASTFRAG) {
-
- /* Check all bytes up to and including all but the last byte in
- the bitmap. */
- for(i = 0; i < uip_reasslen / (8 * 8) - 1; ++i) {
- if(uip_reassbitmap[i] != 0xff) {
- goto nullreturn;
- }
- }
-
- /* Check the last byte in the bitmap. It should contain just the
- right amount of bits. */
- if(uip_reassbitmap[uip_reasslen / (8 * 8)] != (u8_t)~bitmap_bits[uip_reasslen / 8 & 7]) {
- goto nullreturn;
- }
-
- /* If we have come this far, we have a full packet in the
- buffer, so we allocate a pbuf and copy the packet into it. We
- also reset the timer. */
- uip_reasstmr = 0;
- memcpy(BUF, FBUF, uip_reasslen);
-
- /* Pretend to be a "normal" (i.e., not fragmented) IP packet
- from now on. */
- BUF->ipoffset[0] = BUF->ipoffset[1] = 0;
- BUF->len[0] = uip_reasslen >> 8;
- BUF->len[1] = uip_reasslen & 0xff;
- BUF->ipchksum = 0;
- BUF->ipchksum = ~(uip_ipchksum());
-
- return uip_reasslen;
- }
- }
-
-nullreturn:
- return 0;
-}
-#endif /* UIP_REASSEMBLY */
-
-/*---------------------------------------------------------------------------*/
-static void uip_add_rcv_nxt(u16_t n) {
- uip_add32(uip_conn->rcv_nxt, n);
- uip_conn->rcv_nxt[0] = uip_acc32[0];
- uip_conn->rcv_nxt[1] = uip_acc32[1];
- uip_conn->rcv_nxt[2] = uip_acc32[2];
- uip_conn->rcv_nxt[3] = uip_acc32[3];
-}
-
-/*---------------------------------------------------------------------------*/
-void uip_process(u8_t flag) {
- register struct uip_conn* uip_connr = uip_conn;
-
-#if UIP_UDP
- if(flag == UIP_UDP_SEND_CONN) {
- goto udp_send;
- }
-#endif /* UIP_UDP */
-
- uip_sappdata = uip_appdata = &uip_buf[UIP_IPTCPH_LEN + UIP_LLH_LEN];
-
- /* Check if we were invoked because of a poll request for a
- particular connection. */
- if(flag == UIP_POLL_REQUEST) {
- if((uip_connr->tcpstateflags & UIP_TS_MASK) == UIP_ESTABLISHED && !uip_outstanding(uip_connr)) {
- uip_flags = UIP_POLL;
- UIP_APPCALL();
- goto appsend;
- }
-
- goto drop;
-
- /* Check if we were invoked because of the perodic timer fireing. */
- }
- else
- if(flag == UIP_TIMER)
- {
-#if UIP_REASSEMBLY
- if(uip_reasstmr != 0) {
- --uip_reasstmr;
- }
-#endif /* UIP_REASSEMBLY */
-
- /* Increase the initial sequence number. */
-
- if(++iss[3] == 0) {
- if(++iss[2] == 0) {
- if(++iss[1] == 0) {
- ++iss[0];
- }
- }
- }
-
- /* Reset the length variables. */
- uip_len = 0;
- uip_slen = 0;
-
- /* Check if the connection is in a state in which we simply wait
- for the connection to time out. If so, we increase the
- connection's timer and remove the connection if it times
- out. */
- if(uip_connr->tcpstateflags == UIP_TIME_WAIT || uip_connr->tcpstateflags == UIP_FIN_WAIT_2) {
- ++(uip_connr->timer);
- if(uip_connr->timer == UIP_TIME_WAIT_TIMEOUT) {
- uip_connr->tcpstateflags = UIP_CLOSED;
- }
- }
- else
- if(uip_connr->tcpstateflags != UIP_CLOSED) {
-
- /* If the connection has outstanding data, we increase the
- connection's timer and see if it has reached the RTO value
- in which case we retransmit. */
- if(uip_outstanding(uip_connr)) {
- if(uip_connr->timer-- == 0) {
- if
- (
- uip_connr->nrtx == UIP_MAXRTX
- || (
- (uip_connr->tcpstateflags == UIP_SYN_SENT || uip_connr->tcpstateflags == UIP_SYN_RCVD)
- && uip_connr->nrtx == UIP_MAXSYNRTX
- )
- ) {
- uip_connr->tcpstateflags = UIP_CLOSED;
-
- /* We call UIP_APPCALL() with uip_flags set to
- UIP_TIMEDOUT to inform the application that the
- connection has timed out. */
- uip_flags = UIP_TIMEDOUT;
- UIP_APPCALL();
-
- /* We also send a reset packet to the remote host. */
- BUF->flags = TCP_RST | TCP_ACK;
- goto tcp_send_nodata;
- }
-
- /* Exponential backoff. */
- uip_connr->timer = UIP_RTO << (uip_connr->nrtx > 4 ? 4 : uip_connr->nrtx);
- ++(uip_connr->nrtx);
-
- /* Ok, so we need to retransmit. We do this differently
- depending on which state we are in. In ESTABLISHED, we
- call upon the application so that it may prepare the
- data for the retransmit. In SYN_RCVD, we resend the
- SYNACK that we sent earlier and in LAST_ACK we have to
- retransmit our FINACK. */
- UIP_STAT(++uip_stat.tcp.rexmit);
- switch(uip_connr->tcpstateflags & UIP_TS_MASK) {
- case UIP_SYN_RCVD:
- /* In the SYN_RCVD state, we should retransmit our
- SYNACK. */
- goto tcp_send_synack;
-
-#if UIP_ACTIVE_OPEN
-
- case UIP_SYN_SENT:
- /* In the SYN_SENT state, we retransmit out SYN. */
- BUF->flags = 0;
- goto tcp_send_syn;
-#endif /* UIP_ACTIVE_OPEN */
-
- case UIP_ESTABLISHED:
- /* In the ESTABLISHED state, we call upon the application
- to do the actual retransmit after which we jump into
- the code for sending out the packet (the apprexmit
- label). */
- uip_flags = UIP_REXMIT;
- UIP_APPCALL();
- goto apprexmit;
-
- case UIP_FIN_WAIT_1:
- case UIP_CLOSING:
- case UIP_LAST_ACK:
- /* In all these states we should retransmit a FINACK. */
- goto tcp_send_finack;
- }
- }
- }
- else
- if((uip_connr->tcpstateflags & UIP_TS_MASK) == UIP_ESTABLISHED) {
-
- /* If there was no need for a retransmission, we poll the
- application for new data. */
- uip_flags = UIP_POLL;
- UIP_APPCALL();
- goto appsend;
- }
- }
-
- goto drop;
- }
-
-#if UIP_UDP
- if(flag == UIP_UDP_TIMER) {
- if(uip_udp_conn->lport != 0) {
- uip_conn = NULL;
- uip_sappdata = uip_appdata = &uip_buf[UIP_LLH_LEN + UIP_IPUDPH_LEN];
- uip_len = uip_slen = 0;
- uip_flags = UIP_POLL;
- UIP_UDP_APPCALL();
- goto udp_send;
- }
- else {
- goto drop;
- }
- }
-#endif
- /* This is where the input processing starts. */
-
- UIP_STAT(++uip_stat.ip.recv);
-
- /* Start of IP input header processing code. */
-#if UIP_CONF_IPV6
- /* Check validity of the IP header. */
-
- if((BUF->vtc & 0xf0) != 0x60) {
-
- /* IP version and header length. */
- UIP_STAT(++uip_stat.ip.drop);
- UIP_STAT(++uip_stat.ip.vhlerr);
- UIP_LOG("ipv6: invalid version.");
- goto drop;
- }
-
-#else /* UIP_CONF_IPV6 */
- /* Check validity of the IP header. */
-
- if(BUF->vhl != 0x45) {
-
- /* IP version and header length. */
- UIP_STAT(++uip_stat.ip.drop);
- UIP_STAT(++uip_stat.ip.vhlerr);
- UIP_LOG("ip: invalid version or header length.");
- goto drop;
- }
-#endif /* UIP_CONF_IPV6 */
-
- /* Check the size of the packet. If the size reported to us in
- uip_len is smaller the size reported in the IP header, we assume
- that the packet has been corrupted in transit. If the size of
- uip_len is larger than the size reported in the IP packet header,
- the packet has been padded and we set uip_len to the correct
- value.. */
-
- if((BUF->len[0] << 8) + BUF->len[1] <= uip_len) {
- uip_len = (BUF->len[0] << 8) + BUF->len[1];
-#if UIP_CONF_IPV6
- uip_len += 40; /* The length reported in the IPv6 header is the
- length of the payload that follows the
- header. However, uIP uses the uip_len variable
- for holding the size of the entire packet,
- including the IP header. For IPv4 this is not a
- problem as the length field in the IPv4 header
- contains the length of the entire packet. But
- for IPv6 we need to add the size of the IPv6
- header (40 bytes). */
-#endif /* UIP_CONF_IPV6 */
- }
- else {
- UIP_LOG("ip: packet shorter than reported in IP header.");
- goto drop;
- }
-
-#if !UIP_CONF_IPV6
- /* Check the fragment flag. */
-
- if((BUF->ipoffset[0] & 0x3f) != 0 || BUF->ipoffset[1] != 0)
- {
- #if UIP_REASSEMBLY
- uip_len = uip_reass();
- if(uip_len == 0) {
- goto drop;
- }
-
- #else /* UIP_REASSEMBLY */
- UIP_STAT(++uip_stat.ip.drop);
- UIP_STAT(++uip_stat.ip.fragerr);
- UIP_LOG("ip: fragment dropped.");
- goto drop;
- #endif /* UIP_REASSEMBLY */
- }
-#endif /* UIP_CONF_IPV6 */
-
- if(uip_ipaddr_cmp(uip_hostaddr, all_zeroes_addr))
- {
- /* If we are configured to use ping IP address configuration and
- hasn't been assigned an IP address yet, we accept all ICMP
- packets. */
-#if UIP_PINGADDRCONF && !UIP_CONF_IPV6
- if(BUF->proto == UIP_PROTO_ICMP) {
- UIP_LOG("ip: possible ping config packet received.");
- goto icmp_input;
- }
- else {
- UIP_LOG("ip: packet dropped since no address assigned.");
- goto drop;
- }
-#endif /* UIP_PINGADDRCONF */
- }
- else
- {
- /* If IP broadcast support is configured, we check for a broadcast
- UDP packet, which may be destined to us. */
-#if UIP_BROADCAST
- DEBUG_PRINTF("UDP IP checksum 0x%04x\n", uip_ipchksum());
- if
- (
- BUF->proto == UIP_PROTO_UDP
- && uip_ipaddr_cmp(BUF->destipaddr, all_ones_addr) /*&&
- uip_ipchksum() == 0xffff*/
- ) {
- goto udp_input;
- }
-#endif /* UIP_BROADCAST */
-
- /* Check if the packet is destined for our IP address. */
-
-#if !UIP_CONF_IPV6
- if(!uip_ipaddr_cmp(BUF->destipaddr, uip_hostaddr)) {
- UIP_STAT(++uip_stat.ip.drop);
- goto drop;
- }
-
-#else /* UIP_CONF_IPV6 */
- /* For IPv6, packet reception is a little trickier as we need to
- make sure that we listen to certain multicast addresses (all
- hosts multicast address, and the solicited-node multicast
- address) as well. However, we will cheat here and accept all
- multicast packets that are sent to the ff02::/16 addresses. */
-
- if(!uip_ipaddr_cmp(BUF->destipaddr, uip_hostaddr) && BUF->destipaddr[0] != HTONS(0xff02)) {
- UIP_STAT(++uip_stat.ip.drop);
- goto drop;
- }
-#endif /* UIP_CONF_IPV6 */
- }
-
-#if !UIP_CONF_IPV6
- if(uip_ipchksum() != 0xffff) {
-
- /* Compute and check the IP header
- checksum. */
- UIP_STAT(++uip_stat.ip.drop);
- UIP_STAT(++uip_stat.ip.chkerr);
- UIP_LOG("ip: bad checksum.");
- goto drop;
- }
-#endif /* UIP_CONF_IPV6 */
-
- if(BUF->proto == UIP_PROTO_TCP) {
-
- /* Check for TCP packet. If so,
- proceed with TCP input
- processing. */
- goto tcp_input;
- }
-
-#if UIP_UDP
- if(BUF->proto == UIP_PROTO_UDP) {
- goto udp_input;
- }
-#endif /* UIP_UDP */
-
-#if !UIP_CONF_IPV6
- /* ICMPv4 processing code follows. */
-
- if(BUF->proto != UIP_PROTO_ICMP) {
-
- /* We only allow ICMP packets from
- here. */
- UIP_STAT(++uip_stat.ip.drop);
- UIP_STAT(++uip_stat.ip.protoerr);
- UIP_LOG("ip: neither tcp nor icmp.");
- goto drop;
- }
-
- #if UIP_PINGADDRCONF
- icmp_input :
- #endif /* UIP_PINGADDRCONF */
-
- UIP_STAT(++uip_stat.icmp.recv);
-
- /* ICMP echo (i.e., ping) processing. This is simple, we only change
- the ICMP type from ECHO to ECHO_REPLY and adjust the ICMP
- checksum before we return the packet. */
- if(ICMPBUF->type != ICMP_ECHO) {
- UIP_STAT(++uip_stat.icmp.drop);
- UIP_STAT(++uip_stat.icmp.typeerr);
- UIP_LOG("icmp: not icmp echo.");
- goto drop;
- }
-
- /* If we are configured to use ping IP address assignment, we use
- the destination IP address of this ping packet and assign it to
- ourself. */
- #if UIP_PINGADDRCONF
- if((uip_hostaddr[0] | uip_hostaddr[1]) == 0) {
- uip_hostaddr[0] = BUF->destipaddr[0];
- uip_hostaddr[1] = BUF->destipaddr[1];
- }
- #endif /* UIP_PINGADDRCONF */
-
- ICMPBUF->type = ICMP_ECHO_REPLY;
-
- if(ICMPBUF->icmpchksum >= HTONS(0xffff - (ICMP_ECHO << 8))) {
- ICMPBUF->icmpchksum += HTONS(ICMP_ECHO << 8) + 1;
- }
- else {
- ICMPBUF->icmpchksum += HTONS(ICMP_ECHO << 8);
- }
-
- /* Swap IP addresses. */
- uip_ipaddr_copy(BUF->destipaddr, BUF->srcipaddr);
- uip_ipaddr_copy(BUF->srcipaddr, uip_hostaddr);
-
- UIP_STAT(++uip_stat.icmp.sent);
- goto send;
-
- /* End of IPv4 input header processing code. */
-#else /* !UIP_CONF_IPV6 */
- /* This is IPv6 ICMPv6 processing code. */
-
- DEBUG_PRINTF("icmp6_input: length %d\n", uip_len);
-
- if(BUF->proto != UIP_PROTO_ICMP6) {
-
- /* We only allow ICMPv6 packets from
- here. */
- UIP_STAT(++uip_stat.ip.drop);
- UIP_STAT(++uip_stat.ip.protoerr);
- UIP_LOG("ip: neither tcp nor icmp6.");
- goto drop;
- }
-
- UIP_STAT(++uip_stat.icmp.recv);
-
- /* If we get a neighbor solicitation for our address we should send
- a neighbor advertisement message back. */
- if(ICMPBUF->type == ICMP6_NEIGHBOR_SOLICITATION) {
- if(uip_ipaddr_cmp(ICMPBUF->icmp6data, uip_hostaddr)) {
- if(ICMPBUF->options[0] == ICMP6_OPTION_SOURCE_LINK_ADDRESS) {
-
- /* Save the sender's address in our neighbor list. */
- uip_neighbor_add(ICMPBUF->srcipaddr, &(ICMPBUF->options[2]));
- }
-
- /* We should now send a neighbor advertisement back to where the
- neighbor solicication came from. */
- ICMPBUF->type = ICMP6_NEIGHBOR_ADVERTISEMENT;
- ICMPBUF->flags = ICMP6_FLAG_S; /* Solicited flag. */
-
- ICMPBUF->reserved1 = ICMPBUF->reserved2 = ICMPBUF->reserved3 = 0;
-
- uip_ipaddr_copy(ICMPBUF->destipaddr, ICMPBUF->srcipaddr);
- uip_ipaddr_copy(ICMPBUF->srcipaddr, uip_hostaddr);
- ICMPBUF->options[0] = ICMP6_OPTION_TARGET_LINK_ADDRESS;
- ICMPBUF->options[1] = 1; /* Options length, 1 = 8 bytes. */
- memcpy(&(ICMPBUF->options[2]), &uip_ethaddr, sizeof(uip_ethaddr));
- ICMPBUF->icmpchksum = 0;
- ICMPBUF->icmpchksum = ~uip_icmp6chksum();
- goto send;
- }
-
- goto drop;
- }
- else
- if(ICMPBUF->type == ICMP6_ECHO) {
-
- /* ICMP echo (i.e., ping) processing. This is simple, we only
- change the ICMP type from ECHO to ECHO_REPLY and update the
- ICMP checksum before we return the packet. */
- ICMPBUF->type = ICMP6_ECHO_REPLY;
-
- uip_ipaddr_copy(BUF->destipaddr, BUF->srcipaddr);
- uip_ipaddr_copy(BUF->srcipaddr, uip_hostaddr);
- ICMPBUF->icmpchksum = 0;
- ICMPBUF->icmpchksum = ~uip_icmp6chksum();
-
- UIP_STAT(++uip_stat.icmp.sent);
- goto send;
- }
- else {
- DEBUG_PRINTF("Unknown icmp6 message type %d\n", ICMPBUF->type);
- UIP_STAT(++uip_stat.icmp.drop);
- UIP_STAT(++uip_stat.icmp.typeerr);
- UIP_LOG("icmp: unknown ICMP message.");
- goto drop;
- }
-
- /* End of IPv6 ICMP processing. */
-#endif /* !UIP_CONF_IPV6 */
-
-#if UIP_UDP
- /* UDP input processing. */
-
- udp_input :
- /* UDP processing is really just a hack. We don't do anything to the
- UDP/IP headers, but let the UDP application do all the hard
- work. If the application sets uip_slen, it has a packet to
- send. */
- #if UIP_UDP_CHECKSUMS
- uip_len = uip_len - UIP_IPUDPH_LEN;
- uip_appdata = &uip_buf[UIP_LLH_LEN + UIP_IPUDPH_LEN];
- if(UDPBUF->udpchksum != 0 && uip_udpchksum() != 0xffff) {
- UIP_STAT(++uip_stat.udp.drop);
- UIP_STAT(++uip_stat.udp.chkerr);
- UIP_LOG("udp: bad checksum.");
- goto drop;
- }
-
- #else /* UIP_UDP_CHECKSUMS */
- uip_len = uip_len - UIP_IPUDPH_LEN;
- #endif /* UIP_UDP_CHECKSUMS */
-
- /* Demultiplex this UDP packet between the UDP "connections". */
-
- for(uip_udp_conn = &uip_udp_conns[0]; uip_udp_conn < &uip_udp_conns[UIP_UDP_CONNS]; ++uip_udp_conn) {
-
- /* If the local UDP port is non-zero, the connection is considered
- to be used. If so, the local port number is checked against the
- destination port number in the received packet. If the two port
- numbers match, the remote port number is checked if the
- connection is bound to a remote port. Finally, if the
- connection is bound to a remote IP address, the source IP
- address of the packet is checked. */
- if
- (
- uip_udp_conn->lport != 0
- && UDPBUF->destport == uip_udp_conn->lport
- && (uip_udp_conn->rport == 0 || UDPBUF->srcport == uip_udp_conn->rport)
- && (
- uip_ipaddr_cmp(uip_udp_conn->ripaddr, all_zeroes_addr)
- || uip_ipaddr_cmp(uip_udp_conn->ripaddr, all_ones_addr)
- || uip_ipaddr_cmp(BUF->srcipaddr, uip_udp_conn->ripaddr)
- )
- ) {
- goto udp_found;
- }
- }
-
- UIP_LOG("udp: no matching connection found");
- goto drop;
-
-udp_found:
- uip_conn = NULL;
- uip_flags = UIP_NEWDATA;
- uip_sappdata = uip_appdata = &uip_buf[UIP_LLH_LEN + UIP_IPUDPH_LEN];
- uip_slen = 0;
- UIP_UDP_APPCALL();
-udp_send:
- if(uip_slen == 0) {
- goto drop;
- }
-
- uip_len = uip_slen + UIP_IPUDPH_LEN;
-
- #if UIP_CONF_IPV6
- /* For IPv6, the IP length field does not include the IPv6 IP header
- length. */
-
- BUF->len[0] = ((uip_len - UIP_IPH_LEN) >> 8);
- BUF->len[1] = ((uip_len - UIP_IPH_LEN) & 0xff);
- #else /* UIP_CONF_IPV6 */
- BUF->len[0] = (uip_len >> 8);
- BUF->len[1] = (uip_len & 0xff);
- #endif /* UIP_CONF_IPV6 */
-
- BUF->ttl = uip_udp_conn->ttl;
- BUF->proto = UIP_PROTO_UDP;
-
- UDPBUF->udplen = HTONS(uip_slen + UIP_UDPH_LEN);
- UDPBUF->udpchksum = 0;
-
- BUF->srcport = uip_udp_conn->lport;
- BUF->destport = uip_udp_conn->rport;
-
- uip_ipaddr_copy(BUF->srcipaddr, uip_hostaddr);
- uip_ipaddr_copy(BUF->destipaddr, uip_udp_conn->ripaddr);
-
- uip_appdata = &uip_buf[UIP_LLH_LEN + UIP_IPTCPH_LEN];
-
- #if UIP_UDP_CHECKSUMS
- /* Calculate UDP checksum. */
-
- UDPBUF->udpchksum = ~(uip_udpchksum());
- if(UDPBUF->udpchksum == 0) {
- UDPBUF->udpchksum = 0xffff;
- }
- #endif /* UIP_UDP_CHECKSUMS */
-
- goto ip_send_nolen;
-#endif /* UIP_UDP */
-
- /* TCP input processing. */
-
- tcp_input : UIP_STAT(++uip_stat.tcp.recv);
-
- /* Start of TCP input header processing code. */
- if(uip_tcpchksum() != 0xffff) {
-
- /* Compute and check the TCP
- checksum. */
- UIP_STAT(++uip_stat.tcp.drop);
- UIP_STAT(++uip_stat.tcp.chkerr);
- UIP_LOG("tcp: bad checksum.");
- goto drop;
- }
-
- /* Demultiplex this segment. */
- /* First check any active connections. */
- for(uip_connr = &uip_conns[0]; uip_connr <= &uip_conns[UIP_CONNS - 1]; ++uip_connr) {
- if
- (
- uip_connr->tcpstateflags != UIP_CLOSED
- && BUF->destport == uip_connr->lport
- && BUF->srcport == uip_connr->rport
- && uip_ipaddr_cmp(BUF->srcipaddr, uip_connr->ripaddr)
- ) {
- goto found;
- }
- }
-
- /* If we didn't find and active connection that expected the packet,
- either this packet is an old duplicate, or this is a SYN packet
- destined for a connection in LISTEN. If the SYN flag isn't set,
- it is an old packet and we send a RST. */
- if((BUF->flags & TCP_CTL) != TCP_SYN) {
- goto reset;
- }
-
- tmp16 = BUF->destport;
-
- /* Next, check listening connections. */
- for(c = 0; c < UIP_LISTENPORTS; ++c) {
- if(tmp16 == uip_listenports[c])
- goto found_listen;
- }
-
- /* No matching connection found, so we send a RST packet. */
- UIP_STAT(++uip_stat.tcp.synrst);
-reset:
- /* We do not send resets in response to resets. */
- if(BUF->flags & TCP_RST) {
- goto drop;
- }
-
- UIP_STAT(++uip_stat.tcp.rst);
-
- BUF->flags = TCP_RST | TCP_ACK;
- uip_len = UIP_IPTCPH_LEN;
- BUF->tcpoffset = 5 << 4;
-
- /* Flip the seqno and ackno fields in the TCP header. */
- c = BUF->seqno[3];
- BUF->seqno[3] = BUF->ackno[3];
- BUF->ackno[3] = c;
-
- c = BUF->seqno[2];
- BUF->seqno[2] = BUF->ackno[2];
- BUF->ackno[2] = c;
-
- c = BUF->seqno[1];
- BUF->seqno[1] = BUF->ackno[1];
- BUF->ackno[1] = c;
-
- c = BUF->seqno[0];
- BUF->seqno[0] = BUF->ackno[0];
- BUF->ackno[0] = c;
-
- /* We also have to increase the sequence number we are
- acknowledging. If the least significant byte overflowed, we need
- to propagate the carry to the other bytes as well. */
- if(++BUF->ackno[3] == 0) {
- if(++BUF->ackno[2] == 0) {
- if(++BUF->ackno[1] == 0) {
- ++BUF->ackno[0];
- }
- }
- }
-
- /* Swap port numbers. */
- tmp16 = BUF->srcport;
- BUF->srcport = BUF->destport;
- BUF->destport = tmp16;
-
- /* Swap IP addresses. */
- uip_ipaddr_copy(BUF->destipaddr, BUF->srcipaddr);
- uip_ipaddr_copy(BUF->srcipaddr, uip_hostaddr);
-
- /* And send out the RST packet! */
- goto tcp_send_noconn;
-
- /* This label will be jumped to if we matched the incoming packet
- with a connection in LISTEN. In that case, we should create a new
- connection and send a SYNACK in return. */
-found_listen:
- /* First we check if there are any connections avaliable. Unused
- connections are kept in the same table as used connections, but
- unused ones have the tcpstate set to CLOSED. Also, connections in
- TIME_WAIT are kept track of and we'll use the oldest one if no
- CLOSED connections are found. Thanks to Eddie C. Dost for a very
- nice algorithm for the TIME_WAIT search. */
- uip_connr = 0;
- for(c = 0; c < UIP_CONNS; ++c) {
- if(uip_conns[c].tcpstateflags == UIP_CLOSED) {
- uip_connr = &uip_conns[c];
- break;
- }
-
- if(uip_conns[c].tcpstateflags == UIP_TIME_WAIT) {
- if(uip_connr == 0 || uip_conns[c].timer > uip_connr->timer) {
- uip_connr = &uip_conns[c];
- }
- }
- }
-
- if(uip_connr == 0) {
-
- /* All connections are used already, we drop packet and hope that
- the remote end will retransmit the packet at a time when we
- have more spare connections. */
- UIP_STAT(++uip_stat.tcp.syndrop);
- UIP_LOG("tcp: found no unused connections.");
- goto drop;
- }
-
- uip_conn = uip_connr;
-
- /* Fill in the necessary fields for the new connection. */
- uip_connr->rto = uip_connr->timer = UIP_RTO;
- uip_connr->sa = 0;
- uip_connr->sv = 4;
- uip_connr->nrtx = 0;
- uip_connr->lport = BUF->destport;
- uip_connr->rport = BUF->srcport;
- uip_ipaddr_copy(uip_connr->ripaddr, BUF->srcipaddr);
- uip_connr->tcpstateflags = UIP_SYN_RCVD;
-
- uip_connr->snd_nxt[0] = iss[0];
- uip_connr->snd_nxt[1] = iss[1];
- uip_connr->snd_nxt[2] = iss[2];
- uip_connr->snd_nxt[3] = iss[3];
- uip_connr->len = 1;
-
- /* rcv_nxt should be the seqno from the incoming packet + 1. */
- uip_connr->rcv_nxt[3] = BUF->seqno[3];
- uip_connr->rcv_nxt[2] = BUF->seqno[2];
- uip_connr->rcv_nxt[1] = BUF->seqno[1];
- uip_connr->rcv_nxt[0] = BUF->seqno[0];
- uip_add_rcv_nxt(1);
-
- /* Parse the TCP MSS option, if present. */
- if((BUF->tcpoffset & 0xf0) > 0x50) {
- for(c = 0; c < ((BUF->tcpoffset >> 4) - 5) << 2;) {
- opt = uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + c];
- if(opt == TCP_OPT_END) {
-
- /* End of options. */
- break;
- }
- else
- if(opt == TCP_OPT_NOOP) {
- ++c;
-
- /* NOP option. */
- }
- else
- if(opt == TCP_OPT_MSS && uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 1 + c] == TCP_OPT_MSS_LEN) {
-
- /* An MSS option with the right option length. */
- tmp16 = ((u16_t) uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 2 + c] << 8) | (u16_t) uip_buf[UIP_IPTCPH_LEN + UIP_LLH_LEN + 3 + c];
- uip_connr->initialmss = uip_connr->mss = tmp16 > UIP_TCP_MSS ? UIP_TCP_MSS : tmp16;
-
- /* And we are done processing options. */
- break;
- }
- else {
-
- /* All other options have a length field, so that we easily
- can skip past them. */
- if(uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 1 + c] == 0) {
-
- /* If the length field is zero, the options are malformed
- and we don't process them further. */
- break;
- }
-
- c += uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 1 + c];
- }
- }
- }
-
- /* Our response will be a SYNACK. */
-#if UIP_ACTIVE_OPEN
- tcp_send_synack : BUF->flags = TCP_ACK;
-
-tcp_send_syn:
- BUF->flags |= TCP_SYN;
-#else /* UIP_ACTIVE_OPEN */
- tcp_send_synack : BUF->flags = TCP_SYN | TCP_ACK;
-#endif /* UIP_ACTIVE_OPEN */
-
- /* We send out the TCP Maximum Segment Size option with our
- SYNACK. */
-
- BUF->optdata[0] = TCP_OPT_MSS;
- BUF->optdata[1] = TCP_OPT_MSS_LEN;
- BUF->optdata[2] = (UIP_TCP_MSS) / 256;
- BUF->optdata[3] = (UIP_TCP_MSS) & 255;
- uip_len = UIP_IPTCPH_LEN + TCP_OPT_MSS_LEN;
- BUF->tcpoffset = ((UIP_TCPH_LEN + TCP_OPT_MSS_LEN) / 4) << 4;
- goto tcp_send;
-
- /* This label will be jumped to if we found an active connection. */
-found:
- uip_conn = uip_connr;
- uip_flags = 0;
-
- /* We do a very naive form of TCP reset processing; we just accept
- any RST and kill our connection. We should in fact check if the
- sequence number of this reset is wihtin our advertised window
- before we accept the reset. */
- if(BUF->flags & TCP_RST) {
- uip_connr->tcpstateflags = UIP_CLOSED;
- UIP_LOG("tcp: got reset, aborting connection.");
- uip_flags = UIP_ABORT;
- UIP_APPCALL();
- goto drop;
- }
-
- /* Calculated the length of the data, if the application has sent
- any data to us. */
- c = (BUF->tcpoffset >> 4) << 2;
-
- /* uip_len will contain the length of the actual TCP data. This is
- calculated by subtracing the length of the TCP header (in
- c) and the length of the IP header (20 bytes). */
- uip_len = uip_len - c - UIP_IPH_LEN;
-
- /* First, check if the sequence number of the incoming packet is
- what we're expecting next. If not, we send out an ACK with the
- correct numbers in. */
- if(!(((uip_connr->tcpstateflags & UIP_TS_MASK) == UIP_SYN_SENT) && ((BUF->flags & TCP_CTL) == (TCP_SYN | TCP_ACK)))) {
- if
- (
- (uip_len > 0 || ((BUF->flags & (TCP_SYN | TCP_FIN)) != 0))
- && (
- BUF->seqno[0] != uip_connr->rcv_nxt[0]
- || BUF->seqno[1] != uip_connr->rcv_nxt[1]
- || BUF->seqno[2] != uip_connr->rcv_nxt[2]
- || BUF->seqno[3] != uip_connr->rcv_nxt[3]
- )
- ) {
- goto tcp_send_ack;
- }
- }
-
- /* Next, check if the incoming segment acknowledges any outstanding
- data. If so, we update the sequence number, reset the length of
- the outstanding data, calculate RTT estimations, and reset the
- retransmission timer. */
- if((BUF->flags & TCP_ACK) && uip_outstanding(uip_connr)) {
- uip_add32(uip_connr->snd_nxt, uip_connr->len);
-
- if
- (
- BUF->ackno[0] == uip_acc32[0]
- && BUF->ackno[1] == uip_acc32[1]
- && BUF->ackno[2] == uip_acc32[2]
- && BUF->ackno[3] == uip_acc32[3]
- ) {
-
- /* Update sequence number. */
- uip_connr->snd_nxt[0] = uip_acc32[0];
- uip_connr->snd_nxt[1] = uip_acc32[1];
- uip_connr->snd_nxt[2] = uip_acc32[2];
- uip_connr->snd_nxt[3] = uip_acc32[3];
-
- /* Do RTT estimation, unless we have done retransmissions. */
- if(uip_connr->nrtx == 0) {
- signed char m;
- m = uip_connr->rto - uip_connr->timer;
-
- /* This is taken directly from VJs original code in his paper */
- m = m - (uip_connr->sa >> 3);
- uip_connr->sa += m;
- if(m < 0) {
- m = -m;
- }
-
- m = m - (uip_connr->sv >> 2);
- uip_connr->sv += m;
- uip_connr->rto = (uip_connr->sa >> 3) + uip_connr->sv;
- }
-
- /* Set the acknowledged flag. */
- uip_flags = UIP_ACKDATA;
-
- /* Reset the retransmission timer. */
- uip_connr->timer = uip_connr->rto;
-
- /* Reset length of outstanding data. */
- uip_connr->len = 0;
- }
- }
-
- /* Do different things depending on in what state the connection is. */
- switch(uip_connr->tcpstateflags & UIP_TS_MASK) {
- /* CLOSED and LISTEN are not handled here. CLOSE_WAIT is not
- implemented, since we force the application to close when the
- peer sends a FIN (hence the application goes directly from
- ESTABLISHED to LAST_ACK). */
- case UIP_SYN_RCVD:
- /* In SYN_RCVD we have sent out a SYNACK in response to a SYN, and
- we are waiting for an ACK that acknowledges the data we sent
- out the last time. Therefore, we want to have the UIP_ACKDATA
- flag set. If so, we enter the ESTABLISHED state. */
- if(uip_flags & UIP_ACKDATA) {
- uip_connr->tcpstateflags = UIP_ESTABLISHED;
- uip_flags = UIP_CONNECTED;
- uip_connr->len = 0;
- if(uip_len > 0) {
- uip_flags |= UIP_NEWDATA;
- uip_add_rcv_nxt(uip_len);
- }
-
- uip_slen = 0;
- UIP_APPCALL();
- goto appsend;
- }
-
- goto drop;
-#if UIP_ACTIVE_OPEN
-
- case UIP_SYN_SENT:
- /* In SYN_SENT, we wait for a SYNACK that is sent in response to
- our SYN. The rcv_nxt is set to sequence number in the SYNACK
- plus one, and we send an ACK. We move into the ESTABLISHED
- state. */
- if((uip_flags & UIP_ACKDATA) && (BUF->flags & TCP_CTL) == (TCP_SYN | TCP_ACK)) {
-
- /* Parse the TCP MSS option, if present. */
- if((BUF->tcpoffset & 0xf0) > 0x50) {
- for(c = 0; c < ((BUF->tcpoffset >> 4) - 5) << 2;) {
- opt = uip_buf[UIP_IPTCPH_LEN + UIP_LLH_LEN + c];
- if(opt == TCP_OPT_END) {
-
- /* End of options. */
- break;
- }
- else
- if(opt == TCP_OPT_NOOP) {
- ++c;
-
- /* NOP option. */
- }
- else
- if(opt == TCP_OPT_MSS && uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 1 + c] == TCP_OPT_MSS_LEN) {
-
- /* An MSS option with the right option length. */
- tmp16 = (uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 2 + c] << 8) | uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 3 + c];
- uip_connr->initialmss = uip_connr->mss = tmp16 > UIP_TCP_MSS ? UIP_TCP_MSS : tmp16;
-
- /* And we are done processing options. */
- break;
- }
- else {
-
- /* All other options have a length field, so that we easily
- can skip past them. */
- if(uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 1 + c] == 0) {
-
- /* If the length field is zero, the options are malformed
- and we don't process them further. */
- break;
- }
-
- c += uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 1 + c];
- }
- }
- }
-
- uip_connr->tcpstateflags = UIP_ESTABLISHED;
- uip_connr->rcv_nxt[0] = BUF->seqno[0];
- uip_connr->rcv_nxt[1] = BUF->seqno[1];
- uip_connr->rcv_nxt[2] = BUF->seqno[2];
- uip_connr->rcv_nxt[3] = BUF->seqno[3];
- uip_add_rcv_nxt(1);
- uip_flags = UIP_CONNECTED | UIP_NEWDATA;
- uip_connr->len = 0;
- uip_len = 0;
- uip_slen = 0;
- UIP_APPCALL();
- goto appsend;
- }
-
- /* Inform the application that the connection failed */
- uip_flags = UIP_ABORT;
- UIP_APPCALL();
-
- /* The connection is closed after we send the RST */
- uip_conn->tcpstateflags = UIP_CLOSED;
- goto reset;
-#endif /* UIP_ACTIVE_OPEN */
-
- case UIP_ESTABLISHED:
- /* In the ESTABLISHED state, we call upon the application to feed
- data into the uip_buf. If the UIP_ACKDATA flag is set, the
- application should put new data into the buffer, otherwise we are
- retransmitting an old segment, and the application should put that
- data into the buffer.
-
- If the incoming packet is a FIN, we should close the connection on
- this side as well, and we send out a FIN and enter the LAST_ACK
- state. We require that there is no outstanding data; otherwise the
- sequence numbers will be screwed up. */
- if(BUF->flags & TCP_FIN && !(uip_connr->tcpstateflags & UIP_STOPPED)) {
- if(uip_outstanding(uip_connr)) {
- goto drop;
- }
-
- uip_add_rcv_nxt(1 + uip_len);
- uip_flags |= UIP_CLOSE;
- if(uip_len > 0) {
- uip_flags |= UIP_NEWDATA;
- }
-
- UIP_APPCALL();
- uip_connr->len = 1;
- uip_connr->tcpstateflags = UIP_LAST_ACK;
- uip_connr->nrtx = 0;
-tcp_send_finack:
- BUF->flags = TCP_FIN | TCP_ACK;
- goto tcp_send_nodata;
- }
-
- /* Check the URG flag. If this is set, the segment carries urgent
- data that we must pass to the application. */
- if((BUF->flags & TCP_URG) != 0)
- {
-#if UIP_URGDATA > 0
- uip_urglen = (BUF->urgp[0] << 8) | BUF->urgp[1];
- if(uip_urglen > uip_len) {
-
- /* There is more urgent data in the next segment to come. */
- uip_urglen = uip_len;
- }
-
- uip_add_rcv_nxt(uip_urglen);
- uip_len -= uip_urglen;
- uip_urgdata = uip_appdata;
- uip_appdata += uip_urglen;
- }
- else {
- uip_urglen = 0;
-#else /* UIP_URGDATA > 0 */
- uip_appdata = ((char*)uip_appdata) + ((BUF->urgp[0] << 8) | BUF->urgp[1]);
- uip_len -= (BUF->urgp[0] << 8) | BUF->urgp[1];
-#endif /* UIP_URGDATA > 0 */
- }
-
- /* If uip_len > 0 we have TCP data in the packet, and we flag this
- by setting the UIP_NEWDATA flag and update the sequence number
- we acknowledge. If the application has stopped the dataflow
- using uip_stop(), we must not accept any data packets from the
- remote host. */
- if(uip_len > 0 && !(uip_connr->tcpstateflags & UIP_STOPPED)) {
- uip_flags |= UIP_NEWDATA;
- uip_add_rcv_nxt(uip_len);
- }
-
- /* Check if the available buffer space advertised by the other end
- is smaller than the initial MSS for this connection. If so, we
- set the current MSS to the window size to ensure that the
- application does not send more data than the other end can
- handle.
-
- If the remote host advertises a zero window, we set the MSS to
- the initial MSS so that the application will send an entire MSS
- of data. This data will not be acknowledged by the receiver,
- and the application will retransmit it. This is called the
- "persistent timer" and uses the retransmission mechanim.
- */
- tmp16 = ((u16_t) BUF->wnd[0] << 8) + (u16_t) BUF->wnd[1];
- if(tmp16 > uip_connr->initialmss || tmp16 == 0) {
- tmp16 = uip_connr->initialmss;
- }
-
- uip_connr->mss = tmp16;
-
- /* If this packet constitutes an ACK for outstanding data (flagged
- by the UIP_ACKDATA flag, we should call the application since it
- might want to send more data. If the incoming packet had data
- from the peer (as flagged by the UIP_NEWDATA flag), the
- application must also be notified.
-
- When the application is called, the global variable uip_len
- contains the length of the incoming data. The application can
- access the incoming data through the global pointer
- uip_appdata, which usually points UIP_IPTCPH_LEN + UIP_LLH_LEN
- bytes into the uip_buf array.
-
- If the application wishes to send any data, this data should be
- put into the uip_appdata and the length of the data should be
- put into uip_len. If the application don't have any data to
- send, uip_len must be set to 0. */
- if(uip_flags & (UIP_NEWDATA | UIP_ACKDATA)) {
- uip_slen = 0;
- UIP_APPCALL();
-
-appsend:
- if(uip_flags & UIP_ABORT) {
- uip_slen = 0;
- uip_connr->tcpstateflags = UIP_CLOSED;
- BUF->flags = TCP_RST | TCP_ACK;
- goto tcp_send_nodata;
- }
-
- if(uip_flags & UIP_CLOSE) {
- uip_slen = 0;
- uip_connr->len = 1;
- uip_connr->tcpstateflags = UIP_FIN_WAIT_1;
- uip_connr->nrtx = 0;
- BUF->flags = TCP_FIN | TCP_ACK;
- goto tcp_send_nodata;
- }
-
- /* If uip_slen > 0, the application has data to be sent. */
- if(uip_slen > 0) {
-
- /* If the connection has acknowledged data, the contents of
- the ->len variable should be discarded. */
- if((uip_flags & UIP_ACKDATA) != 0) {
- uip_connr->len = 0;
- }
-
- /* If the ->len variable is non-zero the connection has
- already data in transit and cannot send anymore right
- now. */
- if(uip_connr->len == 0) {
-
- /* The application cannot send more than what is allowed by
- the mss (the minumum of the MSS and the available
- window). */
- if(uip_slen > uip_connr->mss) {
- uip_slen = uip_connr->mss;
- }
-
- /* Remember how much data we send out now so that we know
- when everything has been acknowledged. */
- uip_connr->len = uip_slen;
- }
- else {
-
- /* If the application already had unacknowledged data, we
- make sure that the application does not send (i.e.,
- retransmit) out more than it previously sent out. */
- uip_slen = uip_connr->len;
- }
- }
-
- uip_connr->nrtx = 0;
-apprexmit:
- uip_appdata = uip_sappdata;
-
- /* If the application has data to be sent, or if the incoming
- packet had new data in it, we must send out a packet. */
- if(uip_slen > 0 && uip_connr->len > 0) {
-
- /* Add the length of the IP and TCP headers. */
- uip_len = uip_connr->len + UIP_TCPIP_HLEN;
-
- /* We always set the ACK flag in response packets. */
- BUF->flags = TCP_ACK | TCP_PSH;
-
- /* Send the packet. */
- goto tcp_send_noopts;
- }
-
- /* If there is no data to send, just send out a pure ACK if
- there is newdata. */
- if(uip_flags & UIP_NEWDATA) {
- uip_len = UIP_TCPIP_HLEN;
- BUF->flags = TCP_ACK;
- goto tcp_send_noopts;
- }
- }
-
- goto drop;
-
- case UIP_LAST_ACK:
- /* We can close this connection if the peer has acknowledged our
- FIN. This is indicated by the UIP_ACKDATA flag. */
- if(uip_flags & UIP_ACKDATA) {
- uip_connr->tcpstateflags = UIP_CLOSED;
- uip_flags = UIP_CLOSE;
- UIP_APPCALL();
- }
- break;
-
- case UIP_FIN_WAIT_1:
- /* The application has closed the connection, but the remote host
- hasn't closed its end yet. Thus we do nothing but wait for a
- FIN from the other side. */
- if(uip_len > 0) {
- uip_add_rcv_nxt(uip_len);
- }
-
- if(BUF->flags & TCP_FIN) {
- if(uip_flags & UIP_ACKDATA) {
- uip_connr->tcpstateflags = UIP_TIME_WAIT;
- uip_connr->timer = 0;
- uip_connr->len = 0;
- }
- else {
- uip_connr->tcpstateflags = UIP_CLOSING;
- }
-
- uip_add_rcv_nxt(1);
- uip_flags = UIP_CLOSE;
- UIP_APPCALL();
- goto tcp_send_ack;
- }
- else
- if(uip_flags & UIP_ACKDATA) {
- uip_connr->tcpstateflags = UIP_FIN_WAIT_2;
- uip_connr->len = 0;
- goto drop;
- }
-
- if(uip_len > 0) {
- goto tcp_send_ack;
- }
-
- goto drop;
-
- case UIP_FIN_WAIT_2:
- if(uip_len > 0) {
- uip_add_rcv_nxt(uip_len);
- }
-
- if(BUF->flags & TCP_FIN) {
- uip_connr->tcpstateflags = UIP_TIME_WAIT;
- uip_connr->timer = 0;
- uip_add_rcv_nxt(1);
- uip_flags = UIP_CLOSE;
- UIP_APPCALL();
- goto tcp_send_ack;
- }
-
- if(uip_len > 0) {
- goto tcp_send_ack;
- }
-
- goto drop;
-
- case UIP_TIME_WAIT:
- goto tcp_send_ack;
-
- case UIP_CLOSING:
- if(uip_flags & UIP_ACKDATA) {
- uip_connr->tcpstateflags = UIP_TIME_WAIT;
- uip_connr->timer = 0;
- }
- }
-
- goto drop;
-
- /* We jump here when we are ready to send the packet, and just want
- to set the appropriate TCP sequence numbers in the TCP header. */
-tcp_send_ack:
- BUF->flags = TCP_ACK;
-tcp_send_nodata:
- uip_len = UIP_IPTCPH_LEN;
-tcp_send_noopts:
- BUF->tcpoffset = (UIP_TCPH_LEN / 4) << 4;
-tcp_send:
- /* We're done with the input processing. We are now ready to send a
- reply. Our job is to fill in all the fields of the TCP and IP
- headers before calculating the checksum and finally send the
- packet. */
- BUF->ackno[0] = uip_connr->rcv_nxt[0];
- BUF->ackno[1] = uip_connr->rcv_nxt[1];
- BUF->ackno[2] = uip_connr->rcv_nxt[2];
- BUF->ackno[3] = uip_connr->rcv_nxt[3];
-
- BUF->seqno[0] = uip_connr->snd_nxt[0];
- BUF->seqno[1] = uip_connr->snd_nxt[1];
- BUF->seqno[2] = uip_connr->snd_nxt[2];
- BUF->seqno[3] = uip_connr->snd_nxt[3];
-
- BUF->proto = UIP_PROTO_TCP;
-
- BUF->srcport = uip_connr->lport;
- BUF->destport = uip_connr->rport;
-
- uip_ipaddr_copy(BUF->srcipaddr, uip_hostaddr);
- uip_ipaddr_copy(BUF->destipaddr, uip_connr->ripaddr);
-
- if(uip_connr->tcpstateflags & UIP_STOPPED) {
-
- /* If the connection has issued uip_stop(), we advertise a zero
- window so that the remote host will stop sending data. */
- BUF->wnd[0] = BUF->wnd[1] = 0;
- }
- else {
- BUF->wnd[0] = ((UIP_RECEIVE_WINDOW) >> 8);
- BUF->wnd[1] = ((UIP_RECEIVE_WINDOW) & 0xff);
- }
-
-tcp_send_noconn:
- BUF->ttl = UIP_TTL;
-#if UIP_CONF_IPV6
- /* For IPv6, the IP length field does not include the IPv6 IP header
- length. */
-
- BUF->len[0] = ((uip_len - UIP_IPH_LEN) >> 8);
- BUF->len[1] = ((uip_len - UIP_IPH_LEN) & 0xff);
-#else /* UIP_CONF_IPV6 */
- BUF->len[0] = (uip_len >> 8);
- BUF->len[1] = (uip_len & 0xff);
-#endif /* UIP_CONF_IPV6 */
-
- BUF->urgp[0] = BUF->urgp[1] = 0;
-
- /* Calculate TCP checksum. */
- BUF->tcpchksum = 0;
- BUF->tcpchksum = ~(uip_tcpchksum());
-
-ip_send_nolen:
-#if UIP_CONF_IPV6
- BUF->vtc = 0x60;
- BUF->tcflow = 0x00;
- BUF->flow = 0x00;
-#else /* UIP_CONF_IPV6 */
- BUF->vhl = 0x45;
- BUF->tos = 0;
- BUF->ipoffset[0] = BUF->ipoffset[1] = 0;
- ++ipid;
- BUF->ipid[0] = ipid >> 8;
- BUF->ipid[1] = ipid & 0xff;
-
- /* Calculate IP checksum. */
- BUF->ipchksum = 0;
- BUF->ipchksum = ~(uip_ipchksum());
- DEBUG_PRINTF("uip ip_send_nolen: chkecum 0x%04x\n", uip_ipchksum());
-#endif /* UIP_CONF_IPV6 */
-
- UIP_STAT(++uip_stat.tcp.sent);
-send:
- DEBUG_PRINTF("Sending packet with length %d (%d)\n", uip_len, (BUF->len[0] << 8) | BUF->len[1]);
-
- UIP_STAT(++uip_stat.ip.sent);
-
- /* Return and let the caller do the actual transmission. */
- uip_flags = 0;
- return;
-drop:
- uip_len = 0;
- uip_flags = 0;
- return;
-}
-
-/*---------------------------------------------------------------------------*/
-u16_t htons(u16_t val) {
- return HTONS(val);
-}
-
-/*---------------------------------------------------------------------------*/
-void uip_send(const void* data, int len) {
- uip_slen = len;
- if(len > 0) {
- if(data != uip_sappdata) {
- memcpy(uip_sappdata, (data), uip_slen);
- }
- }
-}
-
-/** @} */
--- a/utility/uip.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1657 +0,0 @@
-
-/**
- * \addtogroup uip
- * @{
- */
-
-/**
- * \file
- * Header file for the uIP TCP/IP stack.
- * \author Adam Dunkels <adam@dunkels.com>
- *
- * The uIP TCP/IP stack header file contains definitions for a number
- * of C macros that are used by uIP programs as well as internal uIP
- * structures, TCP/IP header structures and function declarations.
- *
- */
-/*
- * Copyright (c) 2001-2003, Adam Dunkels.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
- * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * This file is part of the uIP TCP/IP stack.
- *
- * $Id: uip.h,v 1.40 2006/06/08 07:12:07 adam Exp $
- *
- */
-#ifndef __UIP_H__
- #define __UIP_H__
-
- #include "uipopt.h"
-
-/**
- * Repressentation of an IP address.
- *
- */
-
-typedef u16_t uip_ip4addr_t[2];
-typedef u16_t uip_ip6addr_t[8];
- #if UIP_CONF_IPV6
-typedef uip_ip6addr_t uip_ipaddr_t;
- #else /* UIP_CONF_IPV6 */
-
-typedef uip_ip4addr_t uip_ipaddr_t;
- #endif /* UIP_CONF_IPV6 */
-
-/*---------------------------------------------------------------------------*/
-
-/* First, the functions that should be called from the
- * system. Initialization, the periodic timer and incoming packets are
- * handled by the following three functions.
- */
-/**
- * \defgroup uipconffunc uIP configuration functions
- * @{
- *
- * The uIP configuration functions are used for setting run-time
- * parameters in uIP such as IP addresses.
- */
-
-/**
- * Set the IP address of this host.
- *
- * The IP address is represented as a 4-byte array where the first
- * octet of the IP address is put in the first member of the 4-byte
- * array.
- *
- * Example:
- \code
-
- uip_ipaddr_t addr;
-
- uip_ipaddr(&addr, 192,168,1,2);
- uip_sethostaddr(&addr);
-
- \endcode
- * \param addr A pointer to an IP address of type uip_ipaddr_t;
- *
- * \sa uip_ipaddr()
- *
- * \hideinitializer
- */
- #define uip_sethostaddr(addr) uip_ipaddr_copy(uip_hostaddr, (addr))
-
-/**
- * Get the IP address of this host.
- *
- * The IP address is represented as a 4-byte array where the first
- * octet of the IP address is put in the first member of the 4-byte
- * array.
- *
- * Example:
- \code
- uip_ipaddr_t hostaddr;
-
- uip_gethostaddr(&hostaddr);
- \endcode
- * \param addr A pointer to a uip_ipaddr_t variable that will be
- * filled in with the currently configured IP address.
- *
- * \hideinitializer
- */
-
- #define uip_gethostaddr(addr) uip_ipaddr_copy((addr), uip_hostaddr)
-
-/**
- * Set the default router's IP address.
- *
- * \param addr A pointer to a uip_ipaddr_t variable containing the IP
- * address of the default router.
- *
- * \sa uip_ipaddr()
- *
- * \hideinitializer
- */
-
- #define uip_setdraddr(addr) uip_ipaddr_copy(uip_draddr, (addr))
-
-/**
- * Set the netmask.
- *
- * \param addr A pointer to a uip_ipaddr_t variable containing the IP
- * address of the netmask.
- *
- * \sa uip_ipaddr()
- *
- * \hideinitializer
- */
-
- #define uip_setnetmask(addr) uip_ipaddr_copy(uip_netmask, (addr))
-
-/**
- * Get the default router's IP address.
- *
- * \param addr A pointer to a uip_ipaddr_t variable that will be
- * filled in with the IP address of the default router.
- *
- * \hideinitializer
- */
-
- #define uip_getdraddr(addr) uip_ipaddr_copy((addr), uip_draddr)
-
-/**
- * Get the netmask.
- *
- * \param addr A pointer to a uip_ipaddr_t variable that will be
- * filled in with the value of the netmask.
- *
- * \hideinitializer
- */
-
- #define uip_getnetmask(addr) uip_ipaddr_copy((addr), uip_netmask)
-
-/** @} */
-
-/**
- * \defgroup uipinit uIP initialization functions
- * @{
- *
- * The uIP initialization functions are used for booting uIP.
- */
-/**
- * uIP initialization function.
- *
- * This function should be called at boot up to initilize the uIP
- * TCP/IP stack.
- */
-void uip_init(void);
-
-/**
- * uIP initialization function.
- *
- * This function may be used at boot time to set the initial ip_id.
- */
-void uip_setipid(u16_t id);
-
-/** @} */
-
-/**
- * \defgroup uipdevfunc uIP device driver functions
- * @{
- *
- * These functions are used by a network device driver for interacting
- * with uIP.
- */
-
-/**
- * Process an incoming packet.
- *
- * This function should be called when the device driver has received
- * a packet from the network. The packet from the device driver must
- * be present in the uip_buf buffer, and the length of the packet
- * should be placed in the uip_len variable.
- *
- * When the function returns, there may be an outbound packet placed
- * in the uip_buf packet buffer. If so, the uip_len variable is set to
- * the length of the packet. If no packet is to be sent out, the
- * uip_len variable is set to 0.
- *
- * The usual way of calling the function is presented by the source
- * code below.
- \code
- uip_len = devicedriver_poll();
- if(uip_len > 0) {
- uip_input();
- if(uip_len > 0) {
- devicedriver_send();
- }
- }
- \endcode
- *
- * \note If you are writing a uIP device driver that needs ARP
- * (Address Resolution Protocol), e.g., when running uIP over
- * Ethernet, you will need to call the uIP ARP code before calling
- * this function:
- \code
- #define BUF ((struct uip_eth_hdr *)&uip_buf[0])
- uip_len = ethernet_devicedrver_poll();
- if(uip_len > 0) {
- if(BUF->type == HTONS(UIP_ETHTYPE_IP)) {
- uip_arp_ipin();
- uip_input();
- if(uip_len > 0) {
- uip_arp_out();
- ethernet_devicedriver_send();
- }
- } else if(BUF->type == HTONS(UIP_ETHTYPE_ARP)) {
- uip_arp_arpin();
- if(uip_len > 0) {
- ethernet_devicedriver_send();
- }
- }
- \endcode
- *
- * \hideinitializer
- */
- #define uip_input() uip_process(UIP_DATA)
-
-/**
- * Periodic processing for a connection identified by its number.
- *
- * This function does the necessary periodic processing (timers,
- * polling) for a uIP TCP conneciton, and should be called when the
- * periodic uIP timer goes off. It should be called for every
- * connection, regardless of whether they are open of closed.
- *
- * When the function returns, it may have an outbound packet waiting
- * for service in the uIP packet buffer, and if so the uip_len
- * variable is set to a value larger than zero. The device driver
- * should be called to send out the packet.
- *
- * The ususal way of calling the function is through a for() loop like
- * this:
- \code
- for(i = 0; i < UIP_CONNS; ++i) {
- uip_periodic(i);
- if(uip_len > 0) {
- devicedriver_send();
- }
- }
- \endcode
- *
- * \note If you are writing a uIP device driver that needs ARP
- * (Address Resolution Protocol), e.g., when running uIP over
- * Ethernet, you will need to call the uip_arp_out() function before
- * calling the device driver:
- \code
- for(i = 0; i < UIP_CONNS; ++i) {
- uip_periodic(i);
- if(uip_len > 0) {
- uip_arp_out();
- ethernet_devicedriver_send();
- }
- }
- \endcode
- *
- * \param conn The number of the connection which is to be periodically polled.
- *
- * \hideinitializer
- */
-
- #define uip_periodic(conn) \
- do \
- { \
- uip_conn = &uip_conns[conn]; \
- uip_process(UIP_TIMER); \
- } while(0)
-
-/**
- *
- *
- */
-
- #define uip_conn_active(conn) (uip_conns[conn].tcpstateflags != UIP_CLOSED)
-
-/**
- * Perform periodic processing for a connection identified by a pointer
- * to its structure.
- *
- * Same as uip_periodic() but takes a pointer to the actual uip_conn
- * struct instead of an integer as its argument. This function can be
- * used to force periodic processing of a specific connection.
- *
- * \param conn A pointer to the uip_conn struct for the connection to
- * be processed.
- *
- * \hideinitializer
- */
-
- #define uip_periodic_conn(conn) \
- do \
- { \
- uip_conn = conn; \
- uip_process(UIP_TIMER); \
- } while(0)
-
-/**
- * Reuqest that a particular connection should be polled.
- *
- * Similar to uip_periodic_conn() but does not perform any timer
- * processing. The application is polled for new data.
- *
- * \param conn A pointer to the uip_conn struct for the connection to
- * be processed.
- *
- * \hideinitializer
- */
-
- #define uip_poll_conn(conn) \
- do \
- { \
- uip_conn = conn; \
- uip_process(UIP_POLL_REQUEST); \
- } while(0)
- #if UIP_UDP
-
-/**
- * Periodic processing for a UDP connection identified by its number.
- *
- * This function is essentially the same as uip_periodic(), but for
- * UDP connections. It is called in a similar fashion as the
- * uip_periodic() function:
- \code
- for(i = 0; i < UIP_UDP_CONNS; i++) {
- uip_udp_periodic(i);
- if(uip_len > 0) {
- devicedriver_send();
- }
- }
- \endcode
- *
- * \note As for the uip_periodic() function, special care has to be
- * taken when using uIP together with ARP and Ethernet:
- \code
- for(i = 0; i < UIP_UDP_CONNS; i++) {
- uip_udp_periodic(i);
- if(uip_len > 0) {
- uip_arp_out();
- ethernet_devicedriver_send();
- }
- }
- \endcode
- *
- * \param conn The number of the UDP connection to be processed.
- *
- * \hideinitializer
- */
-
- #define uip_udp_periodic(conn) \
- do \
- { \
- uip_udp_conn = &uip_udp_conns[conn]; \
- uip_process(UIP_UDP_TIMER); \
- } while(0)
-
-/**
- * Periodic processing for a UDP connection identified by a pointer to
- * its structure.
- *
- * Same as uip_udp_periodic() but takes a pointer to the actual
- * uip_conn struct instead of an integer as its argument. This
- * function can be used to force periodic processing of a specific
- * connection.
- *
- * \param conn A pointer to the uip_udp_conn struct for the connection
- * to be processed.
- *
- * \hideinitializer
- */
-
- #define uip_udp_periodic_conn(conn) \
- do \
- { \
- uip_udp_conn = conn; \
- uip_process(UIP_UDP_TIMER); \
- } while(0)
- #endif /* UIP_UDP */
-
- /**
- * The uIP packet buffer.
- *
- * The uip_buf array is used to hold incoming and outgoing
- * packets. The device driver should place incoming data into this
- * buffer. When sending data, the device driver should read the link
- * level headers and the TCP/IP headers from this buffer. The size of
- * the link level headers is configured by the UIP_LLH_LEN define.
- *
- * \note The application data need not be placed in this buffer, so
- * the device driver must read it from the place pointed to by the
- * uip_appdata pointer as illustrated by the following example:
- \code
- void
- devicedriver_send(void)
- {
- hwsend(&uip_buf[0], UIP_LLH_LEN);
- if(uip_len <= UIP_LLH_LEN + UIP_TCPIP_HLEN) {
- hwsend(&uip_buf[UIP_LLH_LEN], uip_len - UIP_LLH_LEN);
- } else {
- hwsend(&uip_buf[UIP_LLH_LEN], UIP_TCPIP_HLEN);
- hwsend(uip_appdata, uip_len - UIP_TCPIP_HLEN - UIP_LLH_LEN);
- }
- }
- \endcode
- */
- extern u8_t uip_buf[UIP_BUFSIZE + 2];
-
-/** @} */
-
-/*---------------------------------------------------------------------------*/
-/* Functions that are used by the uIP application program. Opening and
- * closing connections, sending and receiving data, etc. is all
- * handled by the functions below.
-*/
-/**
- * \defgroup uipappfunc uIP application functions
- * @{
- *
- * Functions used by an application running of top of uIP.
- */
-/**
- * Start listening to the specified port.
- *
- * \note Since this function expects the port number in network byte
- * order, a conversion using HTONS() or htons() is necessary.
- *
- \code
- uip_listen(HTONS(80));
- \endcode
- *
- * \param port A 16-bit port number in network byte order.
- */
-void uip_listen(u16_t port);
-
-/**
- * Stop listening to the specified port.
- *
- * \note Since this function expects the port number in network byte
- * order, a conversion using HTONS() or htons() is necessary.
- *
- \code
- uip_unlisten(HTONS(80));
- \endcode
- *
- * \param port A 16-bit port number in network byte order.
- */
-void uip_unlisten(u16_t port);
-
-/**
- * Connect to a remote host using TCP.
- *
- * This function is used to start a new connection to the specified
- * port on the specied host. It allocates a new connection identifier,
- * sets the connection to the SYN_SENT state and sets the
- * retransmission timer to 0. This will cause a TCP SYN segment to be
- * sent out the next time this connection is periodically processed,
- * which usually is done within 0.5 seconds after the call to
- * uip_connect().
- *
- * \note This function is avaliable only if support for active open
- * has been configured by defining UIP_ACTIVE_OPEN to 1 in uipopt.h.
- *
- * \note Since this function requires the port number to be in network
- * byte order, a conversion using HTONS() or htons() is necessary.
- *
- \code
- uip_ipaddr_t ipaddr;
-
- uip_ipaddr(&ipaddr, 192,168,1,2);
- uip_connect(&ipaddr, HTONS(80));
- \endcode
- *
- * \param ripaddr The IP address of the remote hot.
- *
- * \param port A 16-bit port number in network byte order.
- *
- * \return A pointer to the uIP connection identifier for the new connection,
- * or NULL if no connection could be allocated.
- *
- */
-struct uip_conn* uip_connect(uip_ipaddr_t* ripaddr, u16_t port);
-
-/**
- * \internal
- *
- * Check if a connection has outstanding (i.e., unacknowledged) data.
- *
- * \param conn A pointer to the uip_conn structure for the connection.
- *
- * \hideinitializer
- */
-
- #define uip_outstanding(conn) ((conn)->len)
-
-/**
- * Send data on the current connection.
- *
- * This function is used to send out a single segment of TCP
- * data. Only applications that have been invoked by uIP for event
- * processing can send data.
- *
- * The amount of data that actually is sent out after a call to this
- * funcion is determined by the maximum amount of data TCP allows. uIP
- * will automatically crop the data so that only the appropriate
- * amount of data is sent. The function uip_mss() can be used to query
- * uIP for the amount of data that actually will be sent.
- *
- * \note This function does not guarantee that the sent data will
- * arrive at the destination. If the data is lost in the network, the
- * application will be invoked with the uip_rexmit() event being
- * set. The application will then have to resend the data using this
- * function.
- *
- * \param data A pointer to the data which is to be sent.
- *
- * \param len The maximum amount of data bytes to be sent.
- *
- * \hideinitializer
- */
-void uip_send(const void* data, int len);
-
-/**
- * The length of any incoming data that is currently avaliable (if avaliable)
- * in the uip_appdata buffer.
- *
- * The test function uip_data() must first be used to check if there
- * is any data available at all.
- *
- * \hideinitializer
- */
-
-/*void uip_datalen(void);*/
- #define uip_datalen() uip_len
-
-/**
- * The length of any out-of-band data (urgent data) that has arrived
- * on the connection.
- *
- * \note The configuration parameter UIP_URGDATA must be set for this
- * function to be enabled.
- *
- * \hideinitializer
- */
-
- #define uip_urgdatalen() uip_urglen
-
-/**
- * Close the current connection.
- *
- * This function will close the current connection in a nice way.
- *
- * \hideinitializer
- */
-
- #define uip_close() (uip_flags = UIP_CLOSE)
-
-/**
- * Abort the current connection.
- *
- * This function will abort (reset) the current connection, and is
- * usually used when an error has occured that prevents using the
- * uip_close() function.
- *
- * \hideinitializer
- */
-
- #define uip_abort() (uip_flags = UIP_ABORT)
-
-/**
- * Tell the sending host to stop sending data.
- *
- * This function will close our receiver's window so that we stop
- * receiving data for the current connection.
- *
- * \hideinitializer
- */
-
- #define uip_stop() (uip_conn->tcpstateflags |= UIP_STOPPED)
-
-/**
- * Find out if the current connection has been previously stopped with
- * uip_stop().
- *
- * \hideinitializer
- */
-
- #define uip_stopped(conn) ((conn)->tcpstateflags & UIP_STOPPED)
-
-/**
- * Restart the current connection, if is has previously been stopped
- * with uip_stop().
- *
- * This function will open the receiver's window again so that we
- * start receiving data for the current connection.
- *
- * \hideinitializer
- */
-
- #define uip_restart() \
- do \
- { \
- uip_flags |= UIP_NEWDATA; \
- uip_conn->tcpstateflags &= ~UIP_STOPPED; \
- } while(0)
-
- /* uIP tests that can be made to determine in what state the current
- connection is, and what the application function should do. */
-
-/**
- * Is the current connection a UDP connection?
- *
- * This function checks whether the current connection is a UDP connection.
- *
- * \hideinitializer
- *
- */
- #define uip_udpconnection() (uip_conn == NULL)
-
-/**
- * Is new incoming data available?
- *
- * Will reduce to non-zero if there is new data for the application
- * present at the uip_appdata pointer. The size of the data is
- * avaliable through the uip_len variable.
- *
- * \hideinitializer
- */
-
- #define uip_newdata() (uip_flags & UIP_NEWDATA)
-
-/**
- * Has previously sent data been acknowledged?
- *
- * Will reduce to non-zero if the previously sent data has been
- * acknowledged by the remote host. This means that the application
- * can send new data.
- *
- * \hideinitializer
- */
-
- #define uip_acked() (uip_flags & UIP_ACKDATA)
-
-/**
- * Has the connection just been connected?
- *
- * Reduces to non-zero if the current connection has been connected to
- * a remote host. This will happen both if the connection has been
- * actively opened (with uip_connect()) or passively opened (with
- * uip_listen()).
- *
- * \hideinitializer
- */
-
- #define uip_connected() (uip_flags & UIP_CONNECTED)
-
-/**
- * Has the connection been closed by the other end?
- *
- * Is non-zero if the connection has been closed by the remote
- * host. The application may then do the necessary clean-ups.
- *
- * \hideinitializer
- */
-
- #define uip_closed() (uip_flags & UIP_CLOSE)
-
-/**
- * Has the connection been aborted by the other end?
- *
- * Non-zero if the current connection has been aborted (reset) by the
- * remote host.
- *
- * \hideinitializer
- */
-
- #define uip_aborted() (uip_flags & UIP_ABORT)
-
-/**
- * Has the connection timed out?
- *
- * Non-zero if the current connection has been aborted due to too many
- * retransmissions.
- *
- * \hideinitializer
- */
-
- #define uip_timedout() (uip_flags & UIP_TIMEDOUT)
-
-/**
- * Do we need to retransmit previously data?
- *
- * Reduces to non-zero if the previously sent data has been lost in
- * the network, and the application should retransmit it. The
- * application should send the exact same data as it did the last
- * time, using the uip_send() function.
- *
- * \hideinitializer
- */
-
- #define uip_rexmit() (uip_flags & UIP_REXMIT)
-
-/**
- * Is the connection being polled by uIP?
- *
- * Is non-zero if the reason the application is invoked is that the
- * current connection has been idle for a while and should be
- * polled.
- *
- * The polling event can be used for sending data without having to
- * wait for the remote host to send data.
- *
- * \hideinitializer
- */
-
- #define uip_poll() (uip_flags & UIP_POLL)
-
-/**
- * Get the initial maxium segment size (MSS) of the current
- * connection.
- *
- * \hideinitializer
- */
-
- #define uip_initialmss() (uip_conn->initialmss)
-
-/**
- * Get the current maxium segment size that can be sent on the current
- * connection.
- *
- * The current maxiumum segment size that can be sent on the
- * connection is computed from the receiver's window and the MSS of
- * the connection (which also is available by calling
- * uip_initialmss()).
- *
- * \hideinitializer
- */
-
- #define uip_mss() (uip_conn->mss)
- /**
- * Set up a new UDP connection.
- *
- * This function sets up a new UDP connection. The function will
- * automatically allocate an unused local port for the new
- * connection. However, another port can be chosen by using the
- * uip_udp_bind() call, after the uip_udp_new() function has been
- * called.
- *
- * Example:
- \code
- uip_ipaddr_t addr;
- struct uip_udp_conn *c;
-
- uip_ipaddr(&addr, 192,168,2,1);
- c = uip_udp_new(&addr, HTONS(12345));
- if(c != NULL) {
- uip_udp_bind(c, HTONS(12344));
- }
- \endcode
- * \param ripaddr The IP address of the remote host.
- *
- * \param rport The remote port number in network byte order.
- *
- * \return The uip_udp_conn structure for the new connection or NULL
- * if no connection could be allocated.
- */
- struct uip_udp_conn* uip_udp_new(uip_ipaddr_t* ripaddr, u16_t rport);
-
-/**
- * Removed a UDP connection.
- *
- * \param conn A pointer to the uip_udp_conn structure for the connection.
- *
- * \hideinitializer
- */
-
- #define uip_udp_remove(conn) (conn)->lport = 0
-
-/**
- * Bind a UDP connection to a local port.
- *
- * \param conn A pointer to the uip_udp_conn structure for the
- * connection.
- *
- * \param port The local port number, in network byte order.
- *
- * \hideinitializer
- */
-
- #define uip_udp_bind(conn, port) (conn)->lport = port
-
-/**
- * Send a UDP datagram of length len on the current connection.
- *
- * This function can only be called in response to a UDP event (poll
- * or newdata). The data must be present in the uip_buf buffer, at the
- * place pointed to by the uip_appdata pointer.
- *
- * \param len The length of the data in the uip_buf buffer.
- *
- * \hideinitializer
- */
-
- #define uip_udp_send(len) uip_send((char*)uip_appdata, len)
-
-/** @} */
-
-/* uIP convenience and converting functions. */
-/**
- * \defgroup uipconvfunc uIP conversion functions
- * @{
- *
- * These functions can be used for converting between different data
- * formats used by uIP.
- */
-
-/**
- * Construct an IP address from four bytes.
- *
- * This function constructs an IP address of the type that uIP handles
- * internally from four bytes. The function is handy for specifying IP
- * addresses to use with e.g. the uip_connect() function.
- *
- * Example:
- \code
- uip_ipaddr_t ipaddr;
- struct uip_conn *c;
-
- uip_ipaddr(&ipaddr, 192,168,1,2);
- c = uip_connect(&ipaddr, HTONS(80));
- \endcode
- *
- * \param addr A pointer to a uip_ipaddr_t variable that will be
- * filled in with the IP address.
- *
- * \param addr0 The first octet of the IP address.
- * \param addr1 The second octet of the IP address.
- * \param addr2 The third octet of the IP address.
- * \param addr3 The forth octet of the IP address.
- *
- * \hideinitializer
- */
- #define uip_ipaddr(addr, addr0, addr1, addr2, addr3) \
- do \
- { \
- ((u16_t *) (addr))[0] = HTONS(((addr0) << 8) | (addr1)); \
- ((u16_t *) (addr))[1] = HTONS(((addr2) << 8) | (addr3)); \
- } while(0)
-
-/**
- * Construct an IPv6 address from eight 16-bit words.
- *
- * This function constructs an IPv6 address.
- *
- * \hideinitializer
- */
-
- #define uip_ip6addr(addr, addr0, addr1, addr2, addr3, addr4, addr5, addr6, addr7) \
- do \
- { \
- ((u16_t *) (addr))[0] = HTONS((addr0)); \
- ((u16_t *) (addr))[1] = HTONS((addr1)); \
- ((u16_t *) (addr))[2] = HTONS((addr2)); \
- ((u16_t *) (addr))[3] = HTONS((addr3)); \
- ((u16_t *) (addr))[4] = HTONS((addr4)); \
- ((u16_t *) (addr))[5] = HTONS((addr5)); \
- ((u16_t *) (addr))[6] = HTONS((addr6)); \
- ((u16_t *) (addr))[7] = HTONS((addr7)); \
- } while(0) /**
- * Copy an IP address to another IP address.
- *
- * Copies an IP address from one place to another.
- *
- * Example:
- \code
- uip_ipaddr_t ipaddr1, ipaddr2;
-
- uip_ipaddr(&ipaddr1, 192,16,1,2);
- uip_ipaddr_copy(&ipaddr2, &ipaddr1);
- \endcode
- *
- * \param dest The destination for the copy.
- * \param src The source from where to copy.
- *
- * \hideinitializer
- */
-
- #if !UIP_CONF_IPV6
- #define uip_ipaddr_copy(dest, src) \
- do \
- { \
- ((u16_t*)dest)[0] = ((u16_t*)src)[0]; \
- ((u16_t*)dest)[1] = ((u16_t*)src)[1]; \
- } while(0)
- #else /* !UIP_CONF_IPV6 */
-
- #define uip_ipaddr_copy(dest, src) memcpy(dest, src, sizeof(uip_ip6addr_t))
- #endif /* !UIP_CONF_IPV6 */
-
- /**
- * Compare two IP addresses
- *
- * Compares two IP addresses.
- *
- * Example:
- \code
- uip_ipaddr_t ipaddr1, ipaddr2;
-
- uip_ipaddr(&ipaddr1, 192,16,1,2);
- if(uip_ipaddr_cmp(&ipaddr2, &ipaddr1)) {
- printf("They are the same");
- }
- \endcode
- *
- * \param addr1 The first IP address.
- * \param addr2 The second IP address.
- *
- * \hideinitializer
- */
-
- #if !UIP_CONF_IPV6
- #define uip_ipaddr_cmp(addr1, addr2) \
- (((u16_t*)addr1)[0] == ((u16_t*)addr2)[0] && ((u16_t*)addr1)[1] == ((u16_t*)addr2)[1])
- #else /* !UIP_CONF_IPV6 */
-
- #define uip_ipaddr_cmp(addr1, addr2) (memcmp(addr1, addr2, sizeof(uip_ip6addr_t)) == 0)
- #endif /* !UIP_CONF_IPV6 */
-
-/**
- * Compare two IP addresses with netmasks
- *
- * Compares two IP addresses with netmasks. The masks are used to mask
- * out the bits that are to be compared.
- *
- * Example:
- \code
- uip_ipaddr_t ipaddr1, ipaddr2, mask;
-
- uip_ipaddr(&mask, 255,255,255,0);
- uip_ipaddr(&ipaddr1, 192,16,1,2);
- uip_ipaddr(&ipaddr2, 192,16,1,3);
- if(uip_ipaddr_maskcmp(&ipaddr1, &ipaddr2, &mask)) {
- printf("They are the same");
- }
- \endcode
- *
- * \param addr1 The first IP address.
- * \param addr2 The second IP address.
- * \param mask The netmask.
- *
- * \hideinitializer
- */
-
- #define uip_ipaddr_maskcmp(addr1, addr2, mask) \
- ( \
- ((((u16_t*)addr1)[0] & ((u16_t*)mask)[0]) == (((u16_t*)addr2)[0] & ((u16_t*)mask)[0])) \
- && ((((u16_t*)addr1)[1] & ((u16_t*)mask)[1]) == (((u16_t*)addr2)[1] & ((u16_t*)mask)[1])) \
- )
-
-/**
- * Mask out the network part of an IP address.
- *
- * Masks out the network part of an IP address, given the address and
- * the netmask.
- *
- * Example:
- \code
- uip_ipaddr_t ipaddr1, ipaddr2, netmask;
-
- uip_ipaddr(&ipaddr1, 192,16,1,2);
- uip_ipaddr(&netmask, 255,255,255,0);
- uip_ipaddr_mask(&ipaddr2, &ipaddr1, &netmask);
- \endcode
- *
- * In the example above, the variable "ipaddr2" will contain the IP
- * address 192.168.1.0.
- *
- * \param dest Where the result is to be placed.
- * \param src The IP address.
- * \param mask The netmask.
- *
- * \hideinitializer
- */
-
- #define uip_ipaddr_mask(dest, src, mask) \
- do \
- { \
- ((u16_t*)dest)[0] = ((u16_t*)src)[0] & ((u16_t*)mask)[0]; \
- ((u16_t*)dest)[1] = ((u16_t*)src)[1] & ((u16_t*)mask)[1]; \
- } while(0)
-
-/**
- * Pick the first octet of an IP address.
- *
- * Picks out the first octet of an IP address.
- *
- * Example:
- \code
- uip_ipaddr_t ipaddr;
- u8_t octet;
-
- uip_ipaddr(&ipaddr, 1,2,3,4);
- octet = uip_ipaddr1(&ipaddr);
- \endcode
- *
- * In the example above, the variable "octet" will contain the value 1.
- *
- * \hideinitializer
- */
-
- #define uip_ipaddr1(addr) (htons(((u16_t *) (addr))[0]) >> 8)
-
-/**
- * Pick the second octet of an IP address.
- *
- * Picks out the second octet of an IP address.
- *
- * Example:
- \code
- uip_ipaddr_t ipaddr;
- u8_t octet;
-
- uip_ipaddr(&ipaddr, 1,2,3,4);
- octet = uip_ipaddr2(&ipaddr);
- \endcode
- *
- * In the example above, the variable "octet" will contain the value 2.
- *
- * \hideinitializer
- */
-
- #define uip_ipaddr2(addr) (htons(((u16_t *) (addr))[0]) & 0xff)
-
-/**
- * Pick the third octet of an IP address.
- *
- * Picks out the third octet of an IP address.
- *
- * Example:
- \code
- uip_ipaddr_t ipaddr;
- u8_t octet;
-
- uip_ipaddr(&ipaddr, 1,2,3,4);
- octet = uip_ipaddr3(&ipaddr);
- \endcode
- *
- * In the example above, the variable "octet" will contain the value 3.
- *
- * \hideinitializer
- */
-
- #define uip_ipaddr3(addr) (htons(((u16_t *) (addr))[1]) >> 8)
-
-/**
- * Pick the fourth octet of an IP address.
- *
- * Picks out the fourth octet of an IP address.
- *
- * Example:
- \code
- uip_ipaddr_t ipaddr;
- u8_t octet;
-
- uip_ipaddr(&ipaddr, 1,2,3,4);
- octet = uip_ipaddr4(&ipaddr);
- \endcode
- *
- * In the example above, the variable "octet" will contain the value 4.
- *
- * \hideinitializer
- */
-
- #define uip_ipaddr4(addr) (htons(((u16_t *) (addr))[1]) & 0xff)
- /**
- * Convert 16-bit quantity from host byte order to network byte order.
- *
- * This macro is primarily used for converting constants from host
- * byte order to network byte order. For converting variables to
- * network byte order, use the htons() function instead.
- *
- * \hideinitializer
- */
-
- #ifndef HTONS
- #if UIP_BYTE_ORDER == UIP_BIG_ENDIAN
- #define HTONS(n) (n)
- #else /* UIP_BYTE_ORDER == UIP_BIG_ENDIAN */
-
- #define HTONS(n) (u16_t) ((((u16_t) (n)) << 8) | (((u16_t) (n)) >> 8))
- #endif /* UIP_BYTE_ORDER == UIP_BIG_ENDIAN */
-
- #else
- #error "HTONS already defined!"
- #endif /* HTONS */
-
- /**
- * Convert 16-bit quantity from host byte order to network byte order.
- *
- * This function is primarily used for converting variables from host
- * byte order to network byte order. For converting constants to
- * network byte order, use the HTONS() macro instead.
- */
-
- #ifndef htons
- u16_t htons(u16_t val);
- #endif /* htons */
-
- #ifndef ntohs
- #define ntohs htons
- #endif
-/** @} */
-
-/**
- * Pointer to the application data in the packet buffer.
- *
- * This pointer points to the application data when the application is
- * called. If the application wishes to send data, the application may
- * use this space to write the data into before calling uip_send().
- */
-extern void* uip_appdata;
-
- #if UIP_URGDATA > 0
-/* u8_t *uip_urgdata:
- *
- * This pointer points to any urgent data that has been received. Only
- * present if compiled with support for urgent data (UIP_URGDATA).
- */
-extern void* uip_urgdata;
- #endif /* UIP_URGDATA > 0 */
-
-/**
- * \defgroup uipdrivervars Variables used in uIP device drivers
- * @{
- *
- * uIP has a few global variables that are used in device drivers for
- * uIP.
- */
-
-/**
- * The length of the packet in the uip_buf buffer.
- *
- * The global variable uip_len holds the length of the packet in the
- * uip_buf buffer.
- *
- * When the network device driver calls the uIP input function,
- * uip_len should be set to the length of the packet in the uip_buf
- * buffer.
- *
- * When sending packets, the device driver should use the contents of
- * the uip_len variable to determine the length of the outgoing
- * packet.
- *
- */
-extern u16_t uip_len;
-
-/** @} */
- #if UIP_URGDATA > 0
-extern u16_t uip_urglen, uip_surglen;
- #endif /* UIP_URGDATA > 0 */
-
-/**
- * Representation of a uIP TCP connection.
- *
- * The uip_conn structure is used for identifying a connection. All
- * but one field in the structure are to be considered read-only by an
- * application. The only exception is the appstate field whos purpose
- * is to let the application store application-specific state (e.g.,
- * file pointers) for the connection. The type of this field is
- * configured in the "uipopt.h" header file.
- */
-
-struct uip_conn
-{
- uip_ipaddr_t ripaddr; /**< The IP address of the remote host. */
-
- u16_t lport; /**< The local TCP port, in network byte order. */
- u16_t rport; /**< The local remote TCP port, in network byte
- order. */
-
- u8_t rcv_nxt[4]; /**< The sequence number that we expect to
- receive next. */
- u8_t snd_nxt[4]; /**< The sequence number that was last sent by
- us. */
- u16_t len; /**< Length of the data that was previously sent. */
- u16_t mss; /**< Current maximum segment size for the
- connection. */
- u16_t initialmss; /**< Initial maximum segment size for the
- connection. */
- u8_t sa; /**< Retransmission time-out calculation state
- variable. */
- u8_t sv; /**< Retransmission time-out calculation state
- variable. */
- u8_t rto; /**< Retransmission time-out. */
- u8_t tcpstateflags; /**< TCP state and flags. */
- u8_t timer; /**< The retransmission timer. */
- u8_t nrtx; /**< The number of retransmissions for the last
- segment sent. */
-
- /** The application state. */
- uip_tcp_appstate_t appstate;
-};
-
-/**
- * Pointer to the current TCP connection.
- *
- * The uip_conn pointer can be used to access the current TCP
- * connection.
- */
-extern struct uip_conn* uip_conn;
-
-/* The array containing all uIP connections. */
-extern struct uip_conn uip_conns[UIP_CONNS];
-
-/**
- * \addtogroup uiparch
- * @{
- */
-/**
- * 4-byte array used for the 32-bit sequence number calculations.
- */
-extern u8_t uip_acc32[4];
-
-/** @} */
-
- #if UIP_UDP
-
-/**
- * Representation of a uIP UDP connection.
- */
-struct uip_udp_conn
-{
- uip_ipaddr_t ripaddr; /**< The IP address of the remote peer. */
- u16_t lport; /**< The local port number in network byte order. */
- u16_t rport; /**< The remote port number in network byte order. */
- u8_t ttl; /**< Default time-to-live. */
-
- /** The application state. */
- uip_udp_appstate_t appstate;
-};
-
-/**
- * The current UDP connection.
- */
-extern struct uip_udp_conn* uip_udp_conn;
-extern struct uip_udp_conn uip_udp_conns[UIP_UDP_CONNS];
- #endif /* UIP_UDP */
-
-/**
- * The structure holding the TCP/IP statistics that are gathered if
- * UIP_STATISTICS is set to 1.
- *
- */
-
-struct uip_stats
-{
- struct
- {
- uip_stats_t drop; /**< Number of dropped packets at the IP
- layer. */
- uip_stats_t recv; /**< Number of received packets at the IP
- layer. */
- uip_stats_t sent; /**< Number of sent packets at the IP
- layer. */
- uip_stats_t vhlerr; /**< Number of packets dropped due to wrong
- IP version or header length. */
- uip_stats_t hblenerr; /**< Number of packets dropped due to wrong
- IP length, high byte. */
- uip_stats_t lblenerr; /**< Number of packets dropped due to wrong
- IP length, low byte. */
- uip_stats_t fragerr; /**< Number of packets dropped since they
- were IP fragments. */
- uip_stats_t chkerr; /**< Number of packets dropped due to IP
- checksum errors. */
- uip_stats_t protoerr; /**< Number of packets dropped since they
- were neither ICMP, UDP nor TCP. */
- } ip; /**< IP statistics. */
- struct
- {
- uip_stats_t drop; /**< Number of dropped ICMP packets. */
- uip_stats_t recv; /**< Number of received ICMP packets. */
- uip_stats_t sent; /**< Number of sent ICMP packets. */
- uip_stats_t typeerr; /**< Number of ICMP packets with a wrong
- type. */
- } icmp; /**< ICMP statistics. */
- struct
- {
- uip_stats_t drop; /**< Number of dropped TCP segments. */
- uip_stats_t recv; /**< Number of recived TCP segments. */
- uip_stats_t sent; /**< Number of sent TCP segments. */
- uip_stats_t chkerr; /**< Number of TCP segments with a bad
- checksum. */
- uip_stats_t ackerr; /**< Number of TCP segments with a bad ACK
- number. */
- uip_stats_t rst; /**< Number of recevied TCP RST (reset) segments. */
- uip_stats_t rexmit; /**< Number of retransmitted TCP segments. */
- uip_stats_t syndrop; /**< Number of dropped SYNs due to too few
- connections was avaliable. */
- uip_stats_t synrst; /**< Number of SYNs for closed ports,
- triggering a RST. */
- } tcp; /**< TCP statistics. */
- #if UIP_UDP
- struct
- {
- uip_stats_t drop; /**< Number of dropped UDP segments. */
- uip_stats_t recv; /**< Number of recived UDP segments. */
- uip_stats_t sent; /**< Number of sent UDP segments. */
- uip_stats_t chkerr; /**< Number of UDP segments with a bad
- checksum. */
- } udp; /**< UDP statistics. */
- #endif /* UIP_UDP */
-};
-
-/**
- * The uIP TCP/IP statistics.
- *
- * This is the variable in which the uIP TCP/IP statistics are gathered.
- */
-extern struct uip_stats uip_stat;
-
-/*---------------------------------------------------------------------------*/
-/* All the stuff below this point is internal to uIP and should not be
- * used directly by an application or by a device driver.
- */
-/*---------------------------------------------------------------------------*/
-/* u8_t uip_flags:
- *
- * When the application is called, uip_flags will contain the flags
- * that are defined in this file. Please read below for more
- * infomation.
- */
-extern u8_t uip_flags;
-
-/* The following flags may be set in the global variable uip_flags
- before calling the application callback. The UIP_ACKDATA,
- UIP_NEWDATA, and UIP_CLOSE flags may both be set at the same time,
- whereas the others are mutualy exclusive. Note that these flags
- should *NOT* be accessed directly, but only through the uIP
- functions/macros. */
-
- #define UIP_ACKDATA 1 /* Signifies that the outstanding data was
- acked and the application should send
- out new data instead of retransmitting
- the last data. */
-
- #define UIP_NEWDATA 2 /* Flags the fact that the peer has sent
- us new data. */
-
- #define UIP_REXMIT 4 /* Tells the application to retransmit the
- data that was last sent. */
-
- #define UIP_POLL 8 /* Used for polling the application, to
- check if the application has data that
- it wants to send. */
-
- #define UIP_CLOSE 16 /* The remote host has closed the
- connection, thus the connection has
- gone away. Or the application signals
- that it wants to close the
- connection. */
-
- #define UIP_ABORT 32 /* The remote host has aborted the
- connection, thus the connection has
- gone away. Or the application signals
- that it wants to abort the
- connection. */
-
- #define UIP_CONNECTED 64 /* We have got a connection from a remote
- host and have set up a new connection
- for it, or an active connection has
- been successfully established. */
-
- #define UIP_TIMEDOUT 128 /* The connection has been aborted due to
- too many retransmissions. */
-
-/* uip_process(flag):
- *
- * The actual uIP function which does all the work.
- */
-void uip_process(u8_t flag);
-
-/* The following flags are passed as an argument to the uip_process()
- function. They are used to distinguish between the two cases where
- uip_process() is called. It can be called either because we have
- incoming data that should be processed, or because the periodic
- timer has fired. These values are never used directly, but only in
- the macrose defined in this file. */
-
- #define UIP_DATA 1 /* Tells uIP that there is incoming
- data in the uip_buf buffer. The
- length of the data is stored in the
- global variable uip_len. */
-
- #define UIP_TIMER 2 /* Tells uIP that the periodic timer
- has fired. */
-
- #define UIP_POLL_REQUEST 3 /* Tells uIP that a connection should
- be polled. */
-
- #define UIP_UDP_SEND_CONN 4 /* Tells uIP that a UDP datagram
- should be constructed in the
- uip_buf buffer. */
-
- #if UIP_UDP
- #define UIP_UDP_TIMER 5
- #endif /* UIP_UDP */
-
-/* The TCP states used in the uip_conn->tcpstateflags. */
-
- #define UIP_CLOSED 0
- #define UIP_SYN_RCVD 1
- #define UIP_SYN_SENT 2
- #define UIP_ESTABLISHED 3
- #define UIP_FIN_WAIT_1 4
- #define UIP_FIN_WAIT_2 5
- #define UIP_CLOSING 6
- #define UIP_TIME_WAIT 7
- #define UIP_LAST_ACK 8
- #define UIP_TS_MASK 15
-
- #define UIP_STOPPED 16
-
-/* The TCP and IP headers. */
-struct uip_tcpip_hdr
-{
- #if UIP_CONF_IPV6
- /* IPv6 header. */
- u8_t vtc, tcflow;
- u16_t flow;
- u8_t len[2];
- u8_t proto, ttl;
- uip_ip6addr_t srcipaddr, destipaddr;
- #else /* UIP_CONF_IPV6 */
- /* IPv4 header. */
-
- u8_t vhl, tos, len[2], ipid[2], ipoffset[2], ttl, proto;
- u16_t ipchksum;
- u16_t srcipaddr[2], destipaddr[2];
- #endif /* UIP_CONF_IPV6 */
-
- /* TCP header. */
-
- u16_t srcport, destport;
- u8_t seqno[4], ackno[4], tcpoffset, flags, wnd[2];
- u16_t tcpchksum;
- u8_t urgp[2];
- u8_t optdata[4];
-};
-
-/* The ICMP and IP headers. */
-struct uip_icmpip_hdr
-{
- #if UIP_CONF_IPV6
- /* IPv6 header. */
- u8_t vtc, tcf;
- u16_t flow;
- u8_t len[2];
- u8_t proto, ttl;
- uip_ip6addr_t srcipaddr, destipaddr;
- #else /* UIP_CONF_IPV6 */
- /* IPv4 header. */
-
- u8_t vhl, tos, len[2], ipid[2], ipoffset[2], ttl, proto;
- u16_t ipchksum;
- u16_t srcipaddr[2], destipaddr[2];
- #endif /* UIP_CONF_IPV6 */
-
- /* ICMP (echo) header. */
-
- u8_t type, icode;
- u16_t icmpchksum;
- #if !UIP_CONF_IPV6
- u16_t id, seqno;
- #else /* !UIP_CONF_IPV6 */
- u8_t flags, reserved1, reserved2, reserved3;
- u8_t icmp6data[16];
- u8_t options[1];
- #endif /* !UIP_CONF_IPV6 */
-};
-
-/* The UDP and IP headers. */
-struct uip_udpip_hdr
-{
- #if UIP_CONF_IPV6
- /* IPv6 header. */
- u8_t vtc, tcf;
- u16_t flow;
- u8_t len[2];
- u8_t proto, ttl;
- uip_ip6addr_t srcipaddr, destipaddr;
- #else /* UIP_CONF_IPV6 */
- /* IP header. */
-
- u8_t vhl, tos, len[2], ipid[2], ipoffset[2], ttl, proto;
- u16_t ipchksum;
- u16_t srcipaddr[2], destipaddr[2];
- #endif /* UIP_CONF_IPV6 */
-
- /* UDP header. */
-
- u16_t srcport, destport;
- u16_t udplen;
- u16_t udpchksum;
-};
-
-/**
- * The buffer size available for user data in the \ref uip_buf buffer.
- *
- * This macro holds the available size for user data in the \ref
- * uip_buf buffer. The macro is intended to be used for checking
- * bounds of available user data.
- *
- * Example:
- \code
- snprintf(uip_appdata, UIP_APPDATA_SIZE, "%u\n", i);
- \endcode
- *
- * \hideinitializer
- */
- #define UIP_APPDATA_SIZE (UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN)
- #define UIP_PROTO_ICMP 1
- #define UIP_PROTO_TCP 6
- #define UIP_PROTO_UDP 17
- #define UIP_PROTO_ICMP6 58
-
-/* Header sizes. */
-
- #if UIP_CONF_IPV6
- #define UIP_IPH_LEN 40
- #else /* UIP_CONF_IPV6 */
-
- #define UIP_IPH_LEN 20 /* Size of IP header */
- #endif /* UIP_CONF_IPV6 */
-
- #define UIP_UDPH_LEN 8 /* Size of UDP header */
-
- #define UIP_TCPH_LEN 20 /* Size of TCP header */
-
- #define UIP_IPUDPH_LEN (UIP_UDPH_LEN + UIP_IPH_LEN) /* Size of IP +
- UDP
- header */
-
- #define UIP_IPTCPH_LEN (UIP_TCPH_LEN + UIP_IPH_LEN) /* Size of IP +
- TCP
- header */
-
- #define UIP_TCPIP_HLEN UIP_IPTCPH_LEN
-
- #if UIP_FIXEDADDR
-extern const uip_ipaddr_t uip_hostaddr, uip_netmask, uip_draddr;
- #else /* UIP_FIXEDADDR */
-
-extern uip_ipaddr_t uip_hostaddr, uip_netmask, uip_draddr;
- #endif /* UIP_FIXEDADDR */
-
-/**
- * Representation of a 48-bit Ethernet address.
- */
-
-struct uip_eth_addr
-{
- u8_t addr[6];
-};
-
-/**
- * Calculate the Internet checksum over a buffer.
- *
- * The Internet checksum is the one's complement of the one's
- * complement sum of all 16-bit words in the buffer.
- *
- * See RFC1071.
- *
- * \param buf A pointer to the buffer over which the checksum is to be
- * computed.
- *
- * \param len The length of the buffer over which the checksum is to
- * be computed.
- *
- * \return The Internet checksum of the buffer.
- */
-u16_t uip_chksum(u16_t* buf, u16_t len);
-
-/**
- * Calculate the IP header checksum of the packet header in uip_buf.
- *
- * The IP header checksum is the Internet checksum of the 20 bytes of
- * the IP header.
- *
- * \return The IP header checksum of the IP header in the uip_buf
- * buffer.
- */
-u16_t uip_ipchksum(void);
-
-/**
- * Calculate the TCP checksum of the packet in uip_buf and uip_appdata.
- *
- * The TCP checksum is the Internet checksum of data contents of the
- * TCP segment, and a pseudo-header as defined in RFC793.
- *
- * \return The TCP checksum of the TCP segment in uip_buf and pointed
- * to by uip_appdata.
- */
-u16_t uip_tcpchksum(void);
-
-/**
- * Calculate the UDP checksum of the packet in uip_buf and uip_appdata.
- *
- * The UDP checksum is the Internet checksum of data contents of the
- * UDP segment, and a pseudo-header as defined in RFC768.
- *
- * \return The UDP checksum of the UDP segment in uip_buf and pointed
- * to by uip_appdata.
- */
-u16_t uip_udpchksum(void);
-#endif /* __UIP_H__ */
-
-/** @} */
--- a/utility/uip_arch.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,134 +0,0 @@
-/**
- * \addtogroup uip
- * {@
- */
-/**
- * \defgroup uiparch Architecture specific uIP functions
- * @{
- *
- * The functions in the architecture specific module implement the IP
- * check sum and 32-bit additions.
- *
- * The IP checksum calculation is the most computationally expensive
- * operation in the TCP/IP stack and it therefore pays off to
- * implement this in efficient assembler. The purpose of the uip-arch
- * module is to let the checksum functions to be implemented in
- * architecture specific assembler.
- *
- */
-/**
- * \file
- * Declarations of architecture specific functions.
- * \author Adam Dunkels <adam@dunkels.com>
- */
-/*
- * Copyright (c) 2001, Adam Dunkels.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
- * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * This file is part of the uIP TCP/IP stack.
- *
- * $Id: uip_arch.h,v 1.2 2006/06/07 09:15:19 adam Exp $
- *
- */
-#ifndef __UIP_ARCH_H__
- #define __UIP_ARCH_H__
-
- #include "uip.h"
-
-/**
- * Carry out a 32-bit addition.
- *
- * Because not all architectures for which uIP is intended has native
- * 32-bit arithmetic, uIP uses an external C function for doing the
- * required 32-bit additions in the TCP protocol processing. This
- * function should add the two arguments and place the result in the
- * global variable uip_acc32.
- *
- * \note The 32-bit integer pointed to by the op32 parameter and the
- * result in the uip_acc32 variable are in network byte order (big
- * endian).
- *
- * \param op32 A pointer to a 4-byte array representing a 32-bit
- * integer in network byte order (big endian).
- *
- * \param op16 A 16-bit integer in host byte order.
- */
-void uip_add32(u8_t* op32, u16_t op16);
-
-/**
- * Calculate the Internet checksum over a buffer.
- *
- * The Internet checksum is the one's complement of the one's
- * complement sum of all 16-bit words in the buffer.
- *
- * See RFC1071.
- *
- * \note This function is not called in the current version of uIP,
- * but future versions might make use of it.
- *
- * \param buf A pointer to the buffer over which the checksum is to be
- * computed.
- *
- * \param len The length of the buffer over which the checksum is to
- * be computed.
- *
- * \return The Internet checksum of the buffer.
- */
-u16_t uip_chksum(u16_t* buf, u16_t len);
-
-/**
- * Calculate the IP header checksum of the packet header in uip_buf.
- *
- * The IP header checksum is the Internet checksum of the 20 bytes of
- * the IP header.
- *
- * \return The IP header checksum of the IP header in the uip_buf
- * buffer.
- */
-u16_t uip_ipchksum(void);
-
-/**
- * Calculate the TCP checksum of the packet in uip_buf and uip_appdata.
- *
- * The TCP checksum is the Internet checksum of data contents of the
- * TCP segment, and a pseudo-header as defined in RFC793.
- *
- * \note The uip_appdata pointer that points to the packet data may
- * point anywhere in memory, so it is not possible to simply calculate
- * the Internet checksum of the contents of the uip_buf buffer.
- *
- * \return The TCP checksum of the TCP segment in uip_buf and pointed
- * to by uip_appdata.
- */
-u16_t uip_tcpchksum(void);
-
-u16_t uip_udpchksum(void);
-
-/** @} */
-
-/** @} */
-#endif /* __UIP_ARCH_H__ */
--- a/utility/uip_arp.c Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,417 +0,0 @@
-/**
- * \addtogroup uip
- * @{
- */
-/**
- * \defgroup uiparp uIP Address Resolution Protocol
- * @{
- *
- * The Address Resolution Protocol ARP is used for mapping between IP
- * addresses and link level addresses such as the Ethernet MAC
- * addresses. ARP uses broadcast queries to ask for the link level
- * address of a known IP address and the host which is configured with
- * the IP address for which the query was meant, will respond with its
- * link level address.
- *
- * \note This ARP implementation only supports Ethernet.
- */
-/**
- * \file
- * Implementation of the ARP Address Resolution Protocol.
- * \author Adam Dunkels <adam@dunkels.com>
- *
- */
-/*
- * Copyright (c) 2001-2003, Adam Dunkels.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
- * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * This file is part of the uIP TCP/IP stack.
- *
- * $Id: uip_arp.c,v 1.8 2006/06/02 23:36:21 adam Exp $
- *
- */
-#include "uip_arp.h"
-
-#include <string.h>
-
-struct arp_hdr
-{
- struct uip_eth_hdr ethhdr;
- u16_t hwtype;
- u16_t protocol;
- u8_t hwlen;
- u8_t protolen;
- u16_t opcode;
- struct uip_eth_addr shwaddr;
- u16_t sipaddr[2];
- struct uip_eth_addr dhwaddr;
- u16_t dipaddr[2];
-};
-
-struct ethip_hdr
-{
- struct uip_eth_hdr ethhdr;
-
- /* IP header. */
- u8_t vhl, tos, len[2], ipid[2], ipoffset[2], ttl, proto;
- u16_t ipchksum;
- u16_t srcipaddr[2], destipaddr[2];
-};
-
-#define ARP_REQUEST 1
-#define ARP_REPLY 2
-
-#define ARP_HWTYPE_ETH 1
-
-struct arp_entry
-{
- u16_t ipaddr[2];
- struct uip_eth_addr ethaddr;
- u8_t time;
-};
-
-static const struct uip_eth_addr broadcast_ethaddr = { { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } };
-static const u16_t broadcast_ipaddr[2] = { 0xffff, 0xffff };
-
-static struct arp_entry arp_table[UIP_ARPTAB_SIZE];
-static u16_t ipaddr[2];
-static u8_t i, c;
-
-static u8_t arptime;
-static u8_t tmpage;
-
-#define BUF ((struct arp_hdr*) &uip_buf[0])
-#define IPBUF ((struct ethip_hdr*) &uip_buf[0])
-/*-----------------------------------------------------------------------------------*/
-
-/**
- * Initialize the ARP module.
- *
- */
-
-/*-----------------------------------------------------------------------------------*/
-void uip_arp_init(void) {
- for(i = 0; i < UIP_ARPTAB_SIZE; ++i) {
- memset(arp_table[i].ipaddr, 0, 4);
- }
-}
-
-/*-----------------------------------------------------------------------------------*/
-/**
- * Periodic ARP processing function.
- *
- * This function performs periodic timer processing in the ARP module
- * and should be called at regular intervals. The recommended interval
- * is 10 seconds between the calls.
- *
- */
-
-/*-----------------------------------------------------------------------------------*/
-void uip_arp_timer(void) {
- struct arp_entry* tabptr;
-
- ++arptime;
- for(i = 0; i < UIP_ARPTAB_SIZE; ++i) {
- tabptr = &arp_table[i];
- if((tabptr->ipaddr[0] | tabptr->ipaddr[1]) != 0 && arptime - tabptr->time >= UIP_ARP_MAXAGE) {
- memset(tabptr->ipaddr, 0, 4);
- }
- }
-}
-
-/*-----------------------------------------------------------------------------------*/
-static void uip_arp_update(u16_t* ipaddr, struct uip_eth_addr* ethaddr) {
- register struct arp_entry* tabptr;
- /* Walk through the ARP mapping table and try to find an entry to
- update. If none is found, the IP -> MAC address mapping is
- inserted in the ARP table. */
-
- for(i = 0; i < UIP_ARPTAB_SIZE; ++i) {
- tabptr = &arp_table[i];
-
- /* Only check those entries that are actually in use. */
- if(tabptr->ipaddr[0] != 0 && tabptr->ipaddr[1] != 0) {
-
- /* Check if the source IP address of the incoming packet matches
- the IP address in this ARP table entry. */
- if(ipaddr[0] == tabptr->ipaddr[0] && ipaddr[1] == tabptr->ipaddr[1]) {
-
- /* An old entry found, update this and return. */
- memcpy(tabptr->ethaddr.addr, ethaddr->addr, 6);
- tabptr->time = arptime;
-
- return;
- }
- }
- }
-
- /* If we get here, no existing ARP table entry was found, so we
- create one. */
- /* First, we try to find an unused entry in the ARP table. */
- for(i = 0; i < UIP_ARPTAB_SIZE; ++i) {
- tabptr = &arp_table[i];
- if(tabptr->ipaddr[0] == 0 && tabptr->ipaddr[1] == 0) {
- break;
- }
- }
-
- /* If no unused entry is found, we try to find the oldest entry and
- throw it away. */
- if(i == UIP_ARPTAB_SIZE) {
- tmpage = 0;
- c = 0;
- for(i = 0; i < UIP_ARPTAB_SIZE; ++i) {
- tabptr = &arp_table[i];
- if(arptime - tabptr->time > tmpage) {
- tmpage = arptime - tabptr->time;
- c = i;
- }
- }
-
- i = c;
- tabptr = &arp_table[i];
- }
-
- /* Now, i is the ARP table entry which we will fill with the new
- information. */
- memcpy(tabptr->ipaddr, ipaddr, 4);
- memcpy(tabptr->ethaddr.addr, ethaddr->addr, 6);
- tabptr->time = arptime;
-}
-
-/*-----------------------------------------------------------------------------------*/
-/**
- * ARP processing for incoming IP packets
- *
- * This function should be called by the device driver when an IP
- * packet has been received. The function will check if the address is
- * in the ARP cache, and if so the ARP cache entry will be
- * refreshed. If no ARP cache entry was found, a new one is created.
- *
- * This function expects an IP packet with a prepended Ethernet header
- * in the uip_buf[] buffer, and the length of the packet in the global
- * variable uip_len.
- */
-/*-----------------------------------------------------------------------------------*/
-
-//#if 0
-void uip_arp_ipin(void) {
- uip_len -= sizeof(struct uip_eth_hdr);
-
- /* Only insert/update an entry if the source IP address of the
- incoming IP packet comes from a host on the local network. */
- if((IPBUF->srcipaddr[0] & uip_netmask[0]) != (uip_hostaddr[0] & uip_netmask[0])) {
- return;
- }
-
- if((IPBUF->srcipaddr[1] & uip_netmask[1]) != (uip_hostaddr[1] & uip_netmask[1])) {
- return;
- }
-
- uip_arp_update(IPBUF->srcipaddr, &(IPBUF->ethhdr.src));
-
- return;
-}
-
-//#endif /* 0 */
-/*-----------------------------------------------------------------------------------*/
-/**
- * ARP processing for incoming ARP packets.
- *
- * This function should be called by the device driver when an ARP
- * packet has been received. The function will act differently
- * depending on the ARP packet type: if it is a reply for a request
- * that we previously sent out, the ARP cache will be filled in with
- * the values from the ARP reply. If the incoming ARP packet is an ARP
- * request for our IP address, an ARP reply packet is created and put
- * into the uip_buf[] buffer.
- *
- * When the function returns, the value of the global variable uip_len
- * indicates whether the device driver should send out a packet or
- * not. If uip_len is zero, no packet should be sent. If uip_len is
- * non-zero, it contains the length of the outbound packet that is
- * present in the uip_buf[] buffer.
- *
- * This function expects an ARP packet with a prepended Ethernet
- * header in the uip_buf[] buffer, and the length of the packet in the
- * global variable uip_len.
- */
-
-/*-----------------------------------------------------------------------------------*/
-void uip_arp_arpin(void) {
- if(uip_len < sizeof(struct arp_hdr)) {
- uip_len = 0;
- return;
- }
-
- uip_len = 0;
-
- switch(BUF->opcode) {
- case HTONS(ARP_REQUEST):
- /* ARP request. If it asked for our address, we send out a
- reply. */
- if(uip_ipaddr_cmp(BUF->dipaddr, uip_hostaddr)) {
-
- /* First, we register the one who made the request in our ARP
- table, since it is likely that we will do more communication
- with this host in the future. */
- uip_arp_update(BUF->sipaddr, &BUF->shwaddr);
-
- /* The reply opcode is 2. */
- BUF->opcode = HTONS(2);
-
- memcpy(BUF->dhwaddr.addr, BUF->shwaddr.addr, 6);
- memcpy(BUF->shwaddr.addr, uip_ethaddr.addr, 6);
- memcpy(BUF->ethhdr.src.addr, uip_ethaddr.addr, 6);
- memcpy(BUF->ethhdr.dest.addr, BUF->dhwaddr.addr, 6);
-
- BUF->dipaddr[0] = BUF->sipaddr[0];
- BUF->dipaddr[1] = BUF->sipaddr[1];
- BUF->sipaddr[0] = uip_hostaddr[0];
- BUF->sipaddr[1] = uip_hostaddr[1];
-
- BUF->ethhdr.type = HTONS(UIP_ETHTYPE_ARP);
- uip_len = sizeof(struct arp_hdr);
- }
- break;
-
- case HTONS(ARP_REPLY):
- /* ARP reply. We insert or update the ARP table if it was meant
- for us. */
- if(uip_ipaddr_cmp(BUF->dipaddr, uip_hostaddr)) {
- uip_arp_update(BUF->sipaddr, &BUF->shwaddr);
- }
- break;
- }
-
- return;
-}
-
-/*-----------------------------------------------------------------------------------*/
-/**
- * Prepend Ethernet header to an outbound IP packet and see if we need
- * to send out an ARP request.
- *
- * This function should be called before sending out an IP packet. The
- * function checks the destination IP address of the IP packet to see
- * what Ethernet MAC address that should be used as a destination MAC
- * address on the Ethernet.
- *
- * If the destination IP address is in the local network (determined
- * by logical ANDing of netmask and our IP address), the function
- * checks the ARP cache to see if an entry for the destination IP
- * address is found. If so, an Ethernet header is prepended and the
- * function returns. If no ARP cache entry is found for the
- * destination IP address, the packet in the uip_buf[] is replaced by
- * an ARP request packet for the IP address. The IP packet is dropped
- * and it is assumed that they higher level protocols (e.g., TCP)
- * eventually will retransmit the dropped packet.
- *
- * If the destination IP address is not on the local network, the IP
- * address of the default router is used instead.
- *
- * When the function returns, a packet is present in the uip_buf[]
- * buffer, and the length of the packet is in the global variable
- * uip_len.
- */
-
-/*-----------------------------------------------------------------------------------*/
-void uip_arp_out(void) {
- struct arp_entry* tabptr;
-
- /* Find the destination IP address in the ARP table and construct
- the Ethernet header. If the destination IP addres isn't on the
- local network, we use the default router's IP address instead.
-
- If not ARP table entry is found, we overwrite the original IP
- packet with an ARP request for the IP address. */
-
- /* First check if destination is a local broadcast. */
- if(uip_ipaddr_cmp(IPBUF->destipaddr, broadcast_ipaddr)) {
- memcpy(IPBUF->ethhdr.dest.addr, broadcast_ethaddr.addr, 6);
- }
- else {
-
- /* Check if the destination address is on the local network. */
- if(!uip_ipaddr_maskcmp(IPBUF->destipaddr, uip_hostaddr, uip_netmask)) {
-
- /* Destination address was not on the local network, so we need to
- use the default router's IP address instead of the destination
- address when determining the MAC address. */
- uip_ipaddr_copy(ipaddr, uip_draddr);
- }
- else {
-
- /* Else, we use the destination IP address. */
- uip_ipaddr_copy(ipaddr, IPBUF->destipaddr);
- }
-
- for(i = 0; i < UIP_ARPTAB_SIZE; ++i) {
- tabptr = &arp_table[i];
- if(uip_ipaddr_cmp(ipaddr, tabptr->ipaddr)) {
- break;
- }
- }
-
- if(i == UIP_ARPTAB_SIZE) {
-
- /* The destination address was not in our ARP table, so we
- overwrite the IP packet with an ARP request. */
- memset(BUF->ethhdr.dest.addr, 0xff, 6);
- memset(BUF->dhwaddr.addr, 0x00, 6);
- memcpy(BUF->ethhdr.src.addr, uip_ethaddr.addr, 6);
- memcpy(BUF->shwaddr.addr, uip_ethaddr.addr, 6);
-
- uip_ipaddr_copy(BUF->dipaddr, ipaddr);
- uip_ipaddr_copy(BUF->sipaddr, uip_hostaddr);
- BUF->opcode = HTONS(ARP_REQUEST); /* ARP request. */
- BUF->hwtype = HTONS(ARP_HWTYPE_ETH);
- BUF->protocol = HTONS(UIP_ETHTYPE_IP);
- BUF->hwlen = 6;
- BUF->protolen = 4;
- BUF->ethhdr.type = HTONS(UIP_ETHTYPE_ARP);
-
- uip_appdata = &uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN];
-
- uip_len = sizeof(struct arp_hdr);
- return;
- }
-
- /* Build an ethernet header. */
- memcpy(IPBUF->ethhdr.dest.addr, tabptr->ethaddr.addr, 6);
- }
-
- memcpy(IPBUF->ethhdr.src.addr, uip_ethaddr.addr, 6);
-
- IPBUF->ethhdr.type = HTONS(UIP_ETHTYPE_IP);
-
- uip_len += sizeof(struct uip_eth_hdr);
-}
-
-/*-----------------------------------------------------------------------------------*/
-/** @} */
-/** @} */
--- a/utility/uip_arp.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,142 +0,0 @@
-/**
- * \addtogroup uip
- * @{
- */
-/**
- * \addtogroup uiparp
- * @{
- */
-/**
- * \file
- * Macros and definitions for the ARP module.
- * \author Adam Dunkels <adam@dunkels.com>
- */
-/*
- * Copyright (c) 2001-2003, Adam Dunkels.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
- * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * This file is part of the uIP TCP/IP stack.
- *
- * $Id: uip_arp.h,v 1.5 2006/06/11 21:46:39 adam Exp $
- *
- */
-#ifndef __UIP_ARP_H__
- #define __UIP_ARP_H__
-
- #include "uip.h"
-
-extern struct uip_eth_addr uip_ethaddr;
-
-/**
- * The Ethernet header.
- */
-struct uip_eth_hdr
-{
- struct uip_eth_addr dest;
- struct uip_eth_addr src;
- u16_t type;
-};
-
- #define UIP_ETHTYPE_ARP 0x0806
- #define UIP_ETHTYPE_IP 0x0800
- #define UIP_ETHTYPE_IP6 0x86dd
-
-/* The uip_arp_init() function must be called before any of the other
- ARP functions. */
-void uip_arp_init(void);
-
-/* The uip_arp_ipin() function should be called whenever an IP packet
- arrives from the Ethernet. This function refreshes the ARP table or
- inserts a new mapping if none exists. The function assumes that an
- IP packet with an Ethernet header is present in the uip_buf buffer
- and that the length of the packet is in the uip_len variable. */
-void uip_arp_ipin(void);
-
-//#define uip_arp_ipin()
-/* The uip_arp_arpin() should be called when an ARP packet is received
- by the Ethernet driver. This function also assumes that the
- Ethernet frame is present in the uip_buf buffer. When the
- uip_arp_arpin() function returns, the contents of the uip_buf
- buffer should be sent out on the Ethernet if the uip_len variable
- is > 0. */
-void uip_arp_arpin(void);
-
-/* The uip_arp_out() function should be called when an IP packet
- should be sent out on the Ethernet. This function creates an
- Ethernet header before the IP header in the uip_buf buffer. The
- Ethernet header will have the correct Ethernet MAC destination
- address filled in if an ARP table entry for the destination IP
- address (or the IP address of the default router) is present. If no
- such table entry is found, the IP packet is overwritten with an ARP
- request and we rely on TCP to retransmit the packet that was
- overwritten. In any case, the uip_len variable holds the length of
- the Ethernet frame that should be transmitted. */
-void uip_arp_out(void);
-
-/* The uip_arp_timer() function should be called every ten seconds. It
- is responsible for flushing old entries in the ARP table. */
-void uip_arp_timer(void);
-
-/** @} */
-
-/**
- * \addtogroup uipconffunc
- * @{
- */
-
-/**
- * Specifiy the Ethernet MAC address.
- *
- * The ARP code needs to know the MAC address of the Ethernet card in
- * order to be able to respond to ARP queries and to generate working
- * Ethernet headers.
- *
- * \note This macro only specifies the Ethernet MAC address to the ARP
- * code. It cannot be used to change the MAC address of the Ethernet
- * card.
- *
- * \param eaddr A pointer to a struct uip_eth_addr containing the
- * Ethernet MAC address of the Ethernet card.
- *
- * \hideinitializer
- */
- #define uip_setethaddr(eaddr) \
- do \
- { \
- uip_ethaddr.addr[0] = eaddr.addr[0]; \
- uip_ethaddr.addr[1] = eaddr.addr[1]; \
- uip_ethaddr.addr[2] = eaddr.addr[2]; \
- uip_ethaddr.addr[3] = eaddr.addr[3]; \
- uip_ethaddr.addr[4] = eaddr.addr[4]; \
- uip_ethaddr.addr[5] = eaddr.addr[5]; \
- } while(0)
-
- /** @} */
-
- /** @} */
-#endif /* __UIP_ARP_H__ */
-
\ No newline at end of file
--- a/utility/uip_clock.cpp Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,12 +0,0 @@
-#include <time.h>
-#include "uip_clock.h"
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-clock_time_t clock_time(void) {
- return(clock_time_t) time(NULL);
-}
--- a/utility/uip_clock.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,87 +0,0 @@
-/**
- * \defgroup clock Clock interface
- *
- * The clock interface is the interface between the \ref timer "timer library"
- * and the platform specific clock functionality. The clock
- * interface must be implemented for each platform that uses the \ref
- * timer "timer library".
- *
- * The clock interface does only one this: it measures time. The clock
- * interface provides a macro, CLOCK_SECOND, which corresponds to one
- * second of system time.
- *
- * \sa \ref timer "Timer library"
- *
- * @{
- */
-/*
- * Copyright (c) 2004, Swedish Institute of Computer Science.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Institute nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * This file is part of the uIP TCP/IP stack
- *
- * Author: Adam Dunkels <adam@sics.se>
- *
- * $Id: clock.h,v 1.3 2006/06/11 21:46:39 adam Exp $
- */
-#ifndef __UIP_CLOCK_H__
- #define __UIP_CLOCK_H__
-
- #include "clock-arch.h"
-
-/**
- * Initialize the clock library.
- *
- * This function initializes the clock library and should be called
- * from the main() function of the system.
- *
- */
-void uip_clock_init(void);
-
-/**
- * Get the current clock time.
- *
- * This function returns the current system clock time.
- *
- * \return The current clock time, measured in system ticks.
- */
-clock_time_t clock_time(void);
-
-/**
- * A second, measured in system clock time.
- *
- * \hideinitializer
- */
-
- #ifdef CLOCK_CONF_SECOND
- #define CLOCK_SECOND CLOCK_CONF_SECOND
- #else
- #define CLOCK_SECOND (clock_time_t) 32
- #endif
-#endif /* __CLOCK_H__ */
-
-/** @} */
--- a/utility/uip_debug.cpp Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,180 +0,0 @@
-#if defined(UIPDEBUG)
- #include <mbed.h>
- #include <inttypes.h>
- #include <uip_debug.h>
-extern "C"
-{
- #include "uip.h"
-} extern Serial pc;
-struct uip_conn con[UIP_CONNS];
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void UIPDebug::uip_debug_printconns(void) {
- for(uint8_t i = 0; i < UIP_CONNS; i++) {
- if(uip_debug_printcon(&con[i], &uip_conns[i])) {
- pc.printf("connection[");
- pc.printf("%d", i);
- pc.printf("] changed.\n");
- }
- }
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-bool UIPDebug::uip_debug_printcon(struct uip_conn* lhs, struct uip_conn* rhs) {
- bool changed = false;
- if(!uip_ipaddr_cmp(lhs->ripaddr, rhs->ripaddr)) {
- pc.printf(" ripaddr: ");
- uip_debug_printbytes((const uint8_t*)lhs->ripaddr, 4);
- pc.printf(" -> ");
- uip_debug_printbytes((const uint8_t*)rhs->ripaddr, 4);
- pc.printf("\n");
- uip_ipaddr_copy(lhs->ripaddr, rhs->ripaddr);
- changed = true;
- }
-
- if(lhs->lport != rhs->lport) {
- pc.printf(" lport: ");
- pc.printf("%d", htons(lhs->lport));
- pc.printf(" -> ");
- pc.printf("%d\n", htons(rhs->lport));
- lhs->lport = rhs->lport;
- changed = true;
- }
-
- if(lhs->rport != rhs->rport) {
- pc.printf(" rport: ");
- pc.printf("%d", htons(lhs->rport));
- pc.printf(" -> ");
- pc.printf("%d\n", htons(rhs->rport));
- lhs->rport = rhs->rport;
- changed = true;
- }
-
- if((uint32_t) lhs->rcv_nxt[0] != (uint32_t) rhs->rcv_nxt[0]) {
- pc.printf(" rcv_nxt: ");
- uip_debug_printbytes(lhs->rcv_nxt, 4);
- pc.printf(" -> ");
- uip_debug_printbytes(rhs->rcv_nxt, 4);
- *((uint32_t*) &lhs->rcv_nxt[0]) = (uint32_t) rhs->rcv_nxt[0];
- pc.printf("\n");
- changed = true;
- }
-
- if((uint32_t) lhs->snd_nxt[0] != (uint32_t) rhs->snd_nxt[0]) {
- pc.printf(" snd_nxt: ");
- uip_debug_printbytes(lhs->snd_nxt, 4);
- pc.printf(" -> ");
- uip_debug_printbytes(rhs->snd_nxt, 4);
- *((uint32_t*) &lhs->snd_nxt[0]) = (uint32_t) rhs->snd_nxt[0];
- pc.printf("\n");
- changed = true;
- }
-
- if(lhs->len != rhs->len) {
- pc.printf(" len: ");
- pc.printf("%d", lhs->len);
- pc.printf(" -> ");
- pc.printf("%d\n", rhs->len);
- lhs->len = rhs->len;
- changed = true;
- }
-
- if(lhs->mss != rhs->mss) {
- pc.printf(" mss: ");
- pc.printf("%d", lhs->mss);
- pc.printf(" -> ");
- pc.printf("%d\n", rhs->mss);
- lhs->mss = rhs->mss;
- changed = true;
- }
-
- if(lhs->initialmss != rhs->initialmss) {
- pc.printf(" initialmss: ");
- pc.printf("%d", lhs->initialmss);
- pc.printf(" -> ");
- pc.printf("%d\n", rhs->initialmss);
- lhs->initialmss = rhs->initialmss;
- changed = true;
- }
-
- if(lhs->sa != rhs->sa) {
- pc.printf(" sa: ");
- pc.printf("%d", lhs->sa);
- pc.printf(" -> ");
- pc.printf("%d", rhs->sa);
- lhs->sa = rhs->sa;
- changed = true;
- }
-
- if(lhs->sv != rhs->sv) {
- pc.printf(" sv: ");
- pc.printf("%d", lhs->sv);
- pc.printf(" -> ");
- pc.printf("%d\n", rhs->sv);
- lhs->sv = rhs->sv;
- changed = true;
- }
-
- if(lhs->rto != rhs->rto) {
- pc.printf(" rto: ");
- pc.printf("%d", lhs->rto);
- pc.printf(" -> ");
- pc.printf("%d\n", rhs->rto);
- lhs->rto = rhs->rto;
- changed = true;
- }
-
- if(lhs->tcpstateflags != rhs->tcpstateflags) {
- pc.printf(" tcpstateflags: ");
- pc.printf("%d", lhs->tcpstateflags);
- pc.printf(" -> ");
- pc.printf("%d\n", rhs->tcpstateflags);
- lhs->tcpstateflags = rhs->tcpstateflags;
- changed = true;
- }
-
- if(lhs->timer != rhs->timer) {
- pc.printf(" timer: ");
- pc.printf("%d", lhs->timer);
- pc.printf(" -> ");
- pc.printf("%d\n", rhs->timer);
- lhs->timer = rhs->timer;
- changed = true;
- }
-
- if(lhs->nrtx != rhs->nrtx) {
- pc.printf(" nrtx: ");
- pc.printf("%d", lhs->nrtx);
- pc.printf(" -> ");
- pc.printf("%d\n", rhs->nrtx);
- lhs->nrtx = rhs->nrtx;
- changed = true;
- }
-
- return changed;
-}
-
-/**
- * @brief
- * @note
- * @param
- * @retval
- */
-void UIPDebug::uip_debug_printbytes(const uint8_t* data, uint8_t len) {
- for(uint8_t i = 0; i < len; i++) {
- pc.printf("%d", data[i]);
- if(i < len - 1)
- pc.printf(",");
- }
-}
-#endif
--- a/utility/uip_debug.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,14 +0,0 @@
-#ifndef UIP_DEBUG_H
- #define UIP_DEBUG_H
-extern "C"
-{
- #include "uip.h"
-}
-class UIPDebug
-{
-public:
- static void uip_debug_printconns(void);
- static bool uip_debug_printcon(struct uip_conn* lhs, struct uip_conn* rhs);
- static void uip_debug_printbytes(const uint8_t* data, uint8_t len);
-};
-#endif
--- a/utility/uip_timer.c Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,123 +0,0 @@
-/**
- * \addtogroup timer
- * @{
- */
-/**
- * \file
- * Timer library implementation.
- * \author
- * Adam Dunkels <adam@sics.se>
- */
-/*
- * Copyright (c) 2004, Swedish Institute of Computer Science.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Institute nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * This file is part of the uIP TCP/IP stack
- *
- * Author: Adam Dunkels <adam@sics.se>
- *
- * $Id: timer.c,v 1.2 2006/06/12 08:00:30 adam Exp $
- */
-#include "uip_clock.h"
-#include "uip_timer.h"
-
-/*---------------------------------------------------------------------------*/
-
-/**
- * Set a timer.
- *
- * This function is used to set a timer for a time sometime in the
- * future. The function timer_expired() will evaluate to true after
- * the timer has expired.
- *
- * \param t A pointer to the timer
- * \param interval The interval before the timer expires.
- *
- */
-void uip_timer_set(struct uip_timer* t, clock_time_t interval) {
- t->interval = interval;
- t->start = clock_time();
-}
-
-/*---------------------------------------------------------------------------*/
-
-/**
- * Reset the timer with the same interval.
- *
- * This function resets the timer with the same interval that was
- * given to the timer_set() function. The start point of the interval
- * is the exact time that the timer last expired. Therefore, this
- * function will cause the timer to be stable over time, unlike the
- * timer_rester() function.
- *
- * \param t A pointer to the timer.
- *
- * \sa timer_restart()
- */
-void uip_timer_reset(struct uip_timer* t) {
- t->start += t->interval;
-}
-
-/*---------------------------------------------------------------------------*/
-
-/**
- * Restart the timer from the current point in time
- *
- * This function restarts a timer with the same interval that was
- * given to the timer_set() function. The timer will start at the
- * current time.
- *
- * \note A periodic timer will drift if this function is used to reset
- * it. For preioric timers, use the timer_reset() function instead.
- *
- * \param t A pointer to the timer.
- *
- * \sa timer_reset()
- */
-void uip_timer_restart(struct uip_timer* t) {
- t->start = clock_time();
-}
-
-/*---------------------------------------------------------------------------*/
-
-/**
- * Check if a timer has expired.
- *
- * This function tests if a timer has expired and returns true or
- * false depending on its status.
- *
- * \param t A pointer to the timer
- *
- * \return Non-zero if the timer has expired, zero otherwise.
- *
- */
-int uip_timer_expired(struct uip_timer* t) {
- return(clock_time_t) (clock_time() - t->start) >= (clock_time_t) t->interval;
-}
-
-/*---------------------------------------------------------------------------*/
-/** @} */
--- a/utility/uip_timer.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,83 +0,0 @@
-/**
- * \defgroup timer Timer library
- *
- * The timer library provides functions for setting, resetting and
- * restarting timers, and for checking if a timer has expired. An
- * application must "manually" check if its timers have expired; this
- * is not done automatically.
- *
- * A timer is declared as a \c struct \c timer and all access to the
- * timer is made by a pointer to the declared timer.
- *
- * \note The timer library uses the \ref clock "Clock library" to
- * measure time. Intervals should be specified in the format used by
- * the clock library.
- *
- * @{
- */
-/**
- * \file
- * Timer library header file.
- * \author
- * Adam Dunkels <adam@sics.se>
- */
-/*
- * Copyright (c) 2004, Swedish Institute of Computer Science.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Institute nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * This file is part of the uIP TCP/IP stack
- *
- * Author: Adam Dunkels <adam@sics.se>
- *
- * $Id: timer.h,v 1.3 2006/06/11 21:46:39 adam Exp $
- */
-#ifndef __UIP_TIMER_H__
- #define __UIP_TIMER_H__
-
- #include "uip_clock.h"
-
-/**
- * A timer.
- *
- * This structure is used for declaring a timer. The timer must be set
- * with timer_set() before it can be used.
- *
- * \hideinitializer
- */
-struct uip_timer
-{
- clock_time_t start;
- clock_time_t interval;
-};
-
-void uip_timer_set(struct uip_timer* t, clock_time_t interval);
-void uip_timer_reset(struct uip_timer* t);
-void uip_timer_restart(struct uip_timer* t);
-int uip_timer_expired(struct uip_timer* t);
-#endif /* __UIP_TIMER_H__ */
-
-/** @} */
--- a/utility/uipethernet-conf.h Thu Nov 20 21:26:54 2014 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,20 +0,0 @@ -#ifndef UIPETHERNET_CONF_H - #define UIPETHERNET_CONF_H - -/* for TCP */ - - #define UIP_SOCKET_NUMPACKETS 5 - #define UIP_CONF_MAX_CONNECTIONS 4 - -/* for UDP */ - - #define UIP_CONF_UDP 1 - #define UIP_CONF_BROADCAST 1 - #define UIP_CONF_UDP_CONNS 4 - #define UIP_UDP_NUMPACKETS 5 - -/* number of attempts on write before returning number of bytes sent so far - * set to -1 to block until connection is closed by timeout */ - - #define UIP_ATTEMPTS_ON_WRITE - 1 -#endif
--- a/utility/uipopt.h Thu Nov 20 21:26:54 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,555 +0,0 @@
-/**
- * \defgroup uipopt Configuration options for uIP
- * @{
- *
- * uIP is configured using the per-project configuration file
- * uipopt.h. This file contains all compile-time options for uIP and
- * should be tweaked to match each specific project. The uIP
- * distribution contains a documented example "uipopt.h" that can be
- * copied and modified for each project.
- *
- * \note Most of the configuration options in the uipopt.h should not
- * be changed, but rather the per-project uip-conf.h file.
- */
-/**
- * \file
- * Configuration options for uIP.
- * \author Adam Dunkels <adam@dunkels.com>
- *
- * This file is used for tweaking various configuration options for
- * uIP. You should make a copy of this file into one of your project's
- * directories instead of editing this example "uipopt.h" file that
- * comes with the uIP distribution.
- */
-/*
- * Copyright (c) 2001-2003, Adam Dunkels.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
- * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * This file is part of the uIP TCP/IP stack.
- *
- * $Id: uipopt.h,v 1.4 2006/06/12 08:00:31 adam Exp $
- *
- */
-#ifndef __UIPOPT_H__
- #define __UIPOPT_H__
-
- #ifndef UIP_LITTLE_ENDIAN
- #define UIP_LITTLE_ENDIAN 3412
- #endif /* UIP_LITTLE_ENDIAN */
-
- #ifndef UIP_BIG_ENDIAN
- #define UIP_BIG_ENDIAN 1234
- #endif /* UIP_BIG_ENDIAN */
-
- #include "uip-conf.h"
-
-/*------------------------------------------------------------------------------*/
-
-/**
- * \name Static configuration options
- * @{
- *
- * These configuration options can be used for setting the IP address
- * settings statically, but only if UIP_FIXEDADDR is set to 1. The
- * configuration options for a specific node includes IP address,
- * netmask and default router as well as the Ethernet address. The
- * netmask, default router and Ethernet address are appliciable only
- * if uIP should be run over Ethernet.
- *
- * All of these should be changed to suit your project.
-*/
-/**
- * Determines if uIP should use a fixed IP address or not.
- *
- * If uIP should use a fixed IP address, the settings are set in the
- * uipopt.h file. If not, the macros uip_sethostaddr(),
- * uip_setdraddr() and uip_setnetmask() should be used instead.
- *
- * \hideinitializer
- */
- #define UIP_FIXEDADDR 0
-
-/**
- * Ping IP address asignment.
- *
- * uIP uses a "ping" packets for setting its own IP address if this
- * option is set. If so, uIP will start with an empty IP address and
- * the destination IP address of the first incoming "ping" (ICMP echo)
- * packet will be used for setting the hosts IP address.
- *
- * \note This works only if UIP_FIXEDADDR is 0.
- *
- * \hideinitializer
- */
-
- #ifdef UIP_CONF_PINGADDRCONF
- #define UIP_PINGADDRCONF UIP_CONF_PINGADDRCONF
- #else /* UIP_CONF_PINGADDRCONF */
-
- #define UIP_PINGADDRCONF 0
- #endif /* UIP_CONF_PINGADDRCONF */
-
-/**
- * Specifies if the uIP ARP module should be compiled with a fixed
- * Ethernet MAC address or not.
- *
- * If this configuration option is 0, the macro uip_setethaddr() can
- * be used to specify the Ethernet address at run-time.
- *
- * \hideinitializer
- */
-
- #define UIP_FIXEDETHADDR 0
-
-/** @} */
-
-/*------------------------------------------------------------------------------*/
-/**
- * \name IP configuration options
- * @{
- *
- */
-/**
- * The IP TTL (time to live) of IP packets sent by uIP.
- *
- * This should normally not be changed.
- */
- #define UIP_TTL 64
-
-/**
- * Turn on support for IP packet reassembly.
- *
- * uIP supports reassembly of fragmented IP packets. This features
- * requires an additonal amount of RAM to hold the reassembly buffer
- * and the reassembly code size is approximately 700 bytes. The
- * reassembly buffer is of the same size as the uip_buf buffer
- * (configured by UIP_BUFSIZE).
- *
- * \note IP packet reassembly is not heavily tested.
- *
- * \hideinitializer
- */
-
- #define UIP_REASSEMBLY 0
-
-/**
- * The maximum time an IP fragment should wait in the reassembly
- * buffer before it is dropped.
- *
- */
-
- #define UIP_REASS_MAXAGE 40
-
-/** @} */
-
-/*------------------------------------------------------------------------------*/
-/**
- * \name UDP configuration options
- * @{
- */
-/**
- * Toggles wether UDP support should be compiled in or not.
- *
- * \hideinitializer
- */
- #ifdef UIP_CONF_UDP
- #define UIP_UDP UIP_CONF_UDP
- #else /* UIP_CONF_UDP */
-
- #define UIP_UDP 0
- #endif /* UIP_CONF_UDP */
-
-/**
- * Toggles if UDP checksums should be used or not.
- *
- * \note Support for UDP checksums is currently not included in uIP,
- * so this option has no function.
- *
- * \hideinitializer
- */
-
- #ifdef UIP_CONF_UDP_CHECKSUMS
- #define UIP_UDP_CHECKSUMS UIP_CONF_UDP_CHECKSUMS
- #else
- #define UIP_UDP_CHECKSUMS 0
- #endif
-/**
- * The maximum amount of concurrent UDP connections.
- *
- * \hideinitializer
- */
-
- #ifdef UIP_CONF_UDP_CONNS
- #define UIP_UDP_CONNS UIP_CONF_UDP_CONNS
- #else /* UIP_CONF_UDP_CONNS */
-
- #define UIP_UDP_CONNS 10
- #endif /* UIP_CONF_UDP_CONNS */
-
-/**
- * The name of the function that should be called when UDP datagrams arrive.
- *
- * \hideinitializer
- */
-
-/** @} */
-/*------------------------------------------------------------------------------*/
-/**
- * \name TCP configuration options
- * @{
- */
-/**
- * Determines if support for opening connections from uIP should be
- * compiled in.
- *
- * If the applications that are running on top of uIP for this project
- * do not need to open outgoing TCP connections, this configration
- * option can be turned off to reduce the code size of uIP.
- *
- * \hideinitializer
- */
- #define UIP_ACTIVE_OPEN 1
-
-/**
- * The maximum number of simultaneously open TCP connections.
- *
- * Since the TCP connections are statically allocated, turning this
- * configuration knob down results in less RAM used. Each TCP
- * connection requires approximatly 30 bytes of memory.
- *
- * \hideinitializer
- */
-
- #ifndef UIP_CONF_MAX_CONNECTIONS
- #define UIP_CONNS 10
- #else /* UIP_CONF_MAX_CONNECTIONS */
-
- #define UIP_CONNS UIP_CONF_MAX_CONNECTIONS
- #endif /* UIP_CONF_MAX_CONNECTIONS */
-
-/**
- * The maximum number of simultaneously listening TCP ports.
- *
- * Each listening TCP port requires 2 bytes of memory.
- *
- * \hideinitializer
- */
-
- #ifndef UIP_CONF_MAX_LISTENPORTS
- #define UIP_LISTENPORTS 20
- #else /* UIP_CONF_MAX_LISTENPORTS */
-
- #define UIP_LISTENPORTS UIP_CONF_MAX_LISTENPORTS
- #endif /* UIP_CONF_MAX_LISTENPORTS */
-
-/**
- * Determines if support for TCP urgent data notification should be
- * compiled in.
- *
- * Urgent data (out-of-band data) is a rarely used TCP feature that
- * very seldom would be required.
- *
- * \hideinitializer
- */
-
- #define UIP_URGDATA 0
-
-/**
- * The initial retransmission timeout counted in timer pulses.
- *
- * This should not be changed.
- */
-
- #define UIP_RTO 3
-
-/**
- * The maximum number of times a segment should be retransmitted
- * before the connection should be aborted.
- *
- * This should not be changed.
- */
-
- #define UIP_MAXRTX 8
-
-/**
- * The maximum number of times a SYN segment should be retransmitted
- * before a connection request should be deemed to have been
- * unsuccessful.
- *
- * This should not need to be changed.
- */
-
- #define UIP_MAXSYNRTX 5
-
-/**
- * The TCP maximum segment size.
- *
- * This is should not be to set to more than
- * UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN.
- */
-
- #ifndef UIP_CONF_TCP_MSS
- #define UIP_TCP_MSS (UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN)
- #else
- #define UIP_TCP_MSS UIP_CONF_TCP_MSS
- #endif
-/**
- * The size of the advertised receiver's window.
- *
- * Should be set low (i.e., to the size of the uip_buf buffer) is the
- * application is slow to process incoming data, or high (32768 bytes)
- * if the application processes data quickly.
- *
- * \hideinitializer
- */
-
- #ifndef UIP_CONF_RECEIVE_WINDOW
- #define UIP_RECEIVE_WINDOW UIP_TCP_MSS
- #else
- #define UIP_RECEIVE_WINDOW UIP_CONF_RECEIVE_WINDOW
- #endif
-/**
- * How long a connection should stay in the TIME_WAIT state.
- *
- * This configiration option has no real implication, and it should be
- * left untouched.
- */
-
- #define UIP_TIME_WAIT_TIMEOUT 120
-
-/** @} */
-
-/*------------------------------------------------------------------------------*/
-/**
- * \name ARP configuration options
- * @{
- */
-/**
- * The size of the ARP table.
- *
- * This option should be set to a larger value if this uIP node will
- * have many connections from the local network.
- *
- * \hideinitializer
- */
- #ifdef UIP_CONF_ARPTAB_SIZE
- #define UIP_ARPTAB_SIZE UIP_CONF_ARPTAB_SIZE
- #else
- #define UIP_ARPTAB_SIZE 8
- #endif
-/**
- * The maxium age of ARP table entries measured in 10ths of seconds.
- *
- * An UIP_ARP_MAXAGE of 120 corresponds to 20 minutes (BSD
- * default).
- */
-
- #define UIP_ARP_MAXAGE 120
-
-/** @} */
-
-/*------------------------------------------------------------------------------*/
-/**
- * \name General configuration options
- * @{
- */
-/**
- * The size of the uIP packet buffer.
- *
- * The uIP packet buffer should not be smaller than 60 bytes, and does
- * not need to be larger than 1500 bytes. Lower size results in lower
- * TCP throughput, larger size results in higher TCP throughput.
- *
- * \hideinitializer
- */
- #ifndef UIP_CONF_BUFFER_SIZE
- #define UIP_BUFSIZE 400
- #else /* UIP_CONF_BUFFER_SIZE */
-
- #define UIP_BUFSIZE UIP_CONF_BUFFER_SIZE
- #endif /* UIP_CONF_BUFFER_SIZE */
-
-/**
- * Determines if statistics support should be compiled in.
- *
- * The statistics is useful for debugging and to show the user.
- *
- * \hideinitializer
- */
-
- #ifndef UIP_CONF_STATISTICS
- #define UIP_STATISTICS 0
- #else /* UIP_CONF_STATISTICS */
-
- #define UIP_STATISTICS UIP_CONF_STATISTICS
- #endif /* UIP_CONF_STATISTICS */
-
-/**
- * Determines if logging of certain events should be compiled in.
- *
- * This is useful mostly for debugging. The function uip_log()
- * must be implemented to suit the architecture of the project, if
- * logging is turned on.
- *
- * \hideinitializer
- */
-
- #ifndef UIP_CONF_LOGGING
- #define UIP_LOGGING 0
- #else /* UIP_CONF_LOGGING */
-
- #define UIP_LOGGING UIP_CONF_LOGGING
- #endif /* UIP_CONF_LOGGING */
-
-/**
- * Broadcast support.
- *
- * This flag configures IP broadcast support. This is useful only
- * together with UDP.
- *
- * \hideinitializer
- *
- */
-
- #if UIP_UDP && UIP_CONF_BROADCAST
- #define UIP_BROADCAST UIP_CONF_BROADCAST
- #else /* UIP_CONF_BROADCAST */
-
- #define UIP_BROADCAST 0
- #endif /* UIP_CONF_BROADCAST */
-
-/**
- * Print out a uIP log message.
- *
- * This function must be implemented by the module that uses uIP, and
- * is called by uIP whenever a log message is generated.
- */
-void uip_log(char* msg);
-
-/**
- * The link level header length.
- *
- * This is the offset into the uip_buf where the IP header can be
- * found. For Ethernet, this should be set to 14. For SLIP, this
- * should be set to 0.
- *
- * \hideinitializer
- */
-
- #ifdef UIP_CONF_LLH_LEN
- #define UIP_LLH_LEN UIP_CONF_LLH_LEN
- #else /* UIP_CONF_LLH_LEN */
-
- #define UIP_LLH_LEN 14
- #endif /* UIP_CONF_LLH_LEN */
-
-/** @} */
-
-/*------------------------------------------------------------------------------*/
-/**
- * \name CPU architecture configuration
- * @{
- *
- * The CPU architecture configuration is where the endianess of the
- * CPU on which uIP is to be run is specified. Most CPUs today are
- * little endian, and the most notable exception are the Motorolas
- * which are big endian. The BYTE_ORDER macro should be changed to
- * reflect the CPU architecture on which uIP is to be run.
- */
-/**
- * The byte order of the CPU architecture on which uIP is to be run.
- *
- * This option can be either BIG_ENDIAN (Motorola byte order) or
- * LITTLE_ENDIAN (Intel byte order).
- *
- * \hideinitializer
- */
- #ifdef UIP_CONF_BYTE_ORDER
- #define UIP_BYTE_ORDER UIP_CONF_BYTE_ORDER
- #else /* UIP_CONF_BYTE_ORDER */
-
- #define UIP_BYTE_ORDER UIP_LITTLE_ENDIAN
- #endif /* UIP_CONF_BYTE_ORDER */
-
-/** @} */
-
-/*------------------------------------------------------------------------------*/
-/**
- * \name Appication specific configurations
- * @{
- *
- * An uIP application is implemented using a single application
- * function that is called by uIP whenever a TCP/IP event occurs. The
- * name of this function must be registered with uIP at compile time
- * using the UIP_APPCALL definition.
- *
- * uIP applications can store the application state within the
- * uip_conn structure by specifying the type of the application
- * structure by typedef:ing the type uip_tcp_appstate_t and uip_udp_appstate_t.
- *
- * The file containing the definitions must be included in the
- * uipopt.h file.
- *
- * The following example illustrates how this can look.
- \code
-
-void httpd_appcall(void);
-#define UIP_APPCALL httpd_appcall
-
-struct httpd_state {
- u8_t state;
- u16_t count;
- char *dataptr;
- char *script;
-};
-typedef struct httpd_state uip_tcp_appstate_t
- \endcode
- */
-/**
- * \var #define UIP_APPCALL
- *
- * The name of the application function that uIP should call in
- * response to TCP/IP events.
- *
- */
-/**
- * \var typedef uip_tcp_appstate_t
- *
- * The type of the application state that is to be stored in the
- * uip_conn structure. This usually is typedef:ed to a struct holding
- * application state information.
- */
-/**
- * \var typedef uip_udp_appstate_t
- *
- * The type of the application state that is to be stored in the
- * uip_conn structure. This usually is typedef:ed to a struct holding
- * application state information.
- */
-/** @} */
-/** @} */
-#endif /* __UIPOPT_H__ */
--- a/utility/util.h Thu Nov 20 21:26:54 2014 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,13 +0,0 @@ -#ifndef UTIL_H -#define UTIL_H - -#define htons(x) ( ((x)<<8) | (((x)>>8)&0xFF) ) -#define ntohs(x) htons(x) - -#define htonl(x) ( ((x)<<24 & 0xFF000000UL) | \ - ((x)<< 8 & 0x00FF0000UL) | \ - ((x)>> 8 & 0x0000FF00UL) | \ - ((x)>>24 & 0x000000FFUL) ) -#define ntohl(x) htonl(x) - -#endif