u-blox
Port to C027 (using AppShield and Ethernet)
Dependencies: C12832 EthernetInterface LM75B MMA7660 MQTT mbed-rtos mbed
Fork of
IBMIoTClientEthernetExample
by 
IBM Watson IoT
Diff: EthernetInterface/lwip/api/sockets.c
- Revision:
- 9:58eb378727d9
- Parent:
- 8:80d49dd91542
- Child:
- 10:0b5e0dfee08e
--- a/EthernetInterface/lwip/api/sockets.c Wed Oct 01 13:27:35 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,2347 +0,0 @@
-/**
- * @file
- * Sockets BSD-Like API module
- *
- */
-
-/*
- * Copyright (c) 2001-2004 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. 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 lwIP TCP/IP stack.
- *
- * Author: Adam Dunkels <adam@sics.se>
- *
- * Improved by Marc Boucher <marc@mbsi.ca> and David Haas <dhaas@alum.rpi.edu>
- *
- */
-
-#include "lwip/opt.h"
-
-#if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
-
-#include "lwip/sockets.h"
-#include "lwip/api.h"
-#include "lwip/sys.h"
-#include "lwip/igmp.h"
-#include "lwip/inet.h"
-#include "lwip/tcp.h"
-#include "lwip/raw.h"
-#include "lwip/udp.h"
-#include "lwip/tcpip.h"
-#include "lwip/pbuf.h"
-#if LWIP_CHECKSUM_ON_COPY
-#include "lwip/inet_chksum.h"
-#endif
-
-#include <string.h>
-
-#define NUM_SOCKETS MEMP_NUM_NETCONN
-
-/** Contains all internal pointers and states used for a socket */
-struct lwip_sock {
- /** sockets currently are built on netconns, each socket has one netconn */
- struct netconn *conn;
- /** data that was left from the previous read */
- void *lastdata;
- /** offset in the data that was left from the previous read */
- u16_t lastoffset;
- /** number of times data was received, set by event_callback(),
- tested by the receive and select functions */
- s16_t rcvevent;
- /** number of times data was ACKed (free send buffer), set by event_callback(),
- tested by select */
- u16_t sendevent;
- /** error happened for this socket, set by event_callback(), tested by select */
- u16_t errevent;
- /** last error that occurred on this socket */
- int err;
- /** counter of how many threads are waiting for this socket using select */
- int select_waiting;
-};
-
-/** Description for a task waiting in select */
-struct lwip_select_cb {
- /** Pointer to the next waiting task */
- struct lwip_select_cb *next;
- /** Pointer to the previous waiting task */
- struct lwip_select_cb *prev;
- /** readset passed to select */
- fd_set *readset;
- /** writeset passed to select */
- fd_set *writeset;
- /** unimplemented: exceptset passed to select */
- fd_set *exceptset;
- /** don't signal the same semaphore twice: set to 1 when signalled */
- int sem_signalled;
- /** semaphore to wake up a task waiting for select */
- sys_sem_t sem;
-};
-
-/** This struct is used to pass data to the set/getsockopt_internal
- * functions running in tcpip_thread context (only a void* is allowed) */
-struct lwip_setgetsockopt_data {
- /** socket struct for which to change options */
- struct lwip_sock *sock;
-#ifdef LWIP_DEBUG
- /** socket index for which to change options */
- int s;
-#endif /* LWIP_DEBUG */
- /** level of the option to process */
- int level;
- /** name of the option to process */
- int optname;
- /** set: value to set the option to
- * get: value of the option is stored here */
- void *optval;
- /** size of *optval */
- socklen_t *optlen;
- /** if an error occures, it is temporarily stored here */
- err_t err;
-};
-
-/** The global array of available sockets */
-static struct lwip_sock sockets[NUM_SOCKETS];
-/** The global list of tasks waiting for select */
-static struct lwip_select_cb *select_cb_list;
-/** This counter is increased from lwip_select when the list is chagned
- and checked in event_callback to see if it has changed. */
-static volatile int select_cb_ctr;
-
-/** Table to quickly map an lwIP error (err_t) to a socket error
- * by using -err as an index */
-static const int err_to_errno_table[] = {
- 0, /* ERR_OK 0 No error, everything OK. */
- ENOMEM, /* ERR_MEM -1 Out of memory error. */
- ENOBUFS, /* ERR_BUF -2 Buffer error. */
- EWOULDBLOCK, /* ERR_TIMEOUT -3 Timeout */
- EHOSTUNREACH, /* ERR_RTE -4 Routing problem. */
- EINPROGRESS, /* ERR_INPROGRESS -5 Operation in progress */
- EINVAL, /* ERR_VAL -6 Illegal value. */
- EWOULDBLOCK, /* ERR_WOULDBLOCK -7 Operation would block. */
- EADDRINUSE, /* ERR_USE -8 Address in use. */
- EALREADY, /* ERR_ISCONN -9 Already connected. */
- ECONNABORTED, /* ERR_ABRT -10 Connection aborted. */
- ECONNRESET, /* ERR_RST -11 Connection reset. */
- ENOTCONN, /* ERR_CLSD -12 Connection closed. */
- ENOTCONN, /* ERR_CONN -13 Not connected. */
- EIO, /* ERR_ARG -14 Illegal argument. */
- -1, /* ERR_IF -15 Low-level netif error */
-};
-
-#define ERR_TO_ERRNO_TABLE_SIZE \
- (sizeof(err_to_errno_table)/sizeof(err_to_errno_table[0]))
-
-#define err_to_errno(err) \
- ((unsigned)(-(err)) < ERR_TO_ERRNO_TABLE_SIZE ? \
- err_to_errno_table[-(err)] : EIO)
-
-#ifdef ERRNO
-#ifndef set_errno
-#define set_errno(err) errno = (err)
-#endif
-#else /* ERRNO */
-#define set_errno(err)
-#endif /* ERRNO */
-
-#define sock_set_errno(sk, e) do { \
- sk->err = (e); \
- set_errno(sk->err); \
-} while (0)
-
-/* Forward delcaration of some functions */
-static void event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len);
-static void lwip_getsockopt_internal(void *arg);
-static void lwip_setsockopt_internal(void *arg);
-
-/**
- * Initialize this module. This function has to be called before any other
- * functions in this module!
- */
-void
-lwip_socket_init(void)
-{
-}
-
-/**
- * Map a externally used socket index to the internal socket representation.
- *
- * @param s externally used socket index
- * @return struct lwip_sock for the socket or NULL if not found
- */
-static struct lwip_sock *
-get_socket(int s)
-{
- struct lwip_sock *sock;
-
- if ((s < 0) || (s >= NUM_SOCKETS)) {
- LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): invalid\n", s));
- set_errno(EBADF);
- return NULL;
- }
-
- sock = &sockets[s];
-
- if (!sock->conn) {
- LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): not active\n", s));
- set_errno(EBADF);
- return NULL;
- }
-
- return sock;
-}
-
-/**
- * Same as get_socket but doesn't set errno
- *
- * @param s externally used socket index
- * @return struct lwip_sock for the socket or NULL if not found
- */
-static struct lwip_sock *
-tryget_socket(int s)
-{
- if ((s < 0) || (s >= NUM_SOCKETS)) {
- return NULL;
- }
- if (!sockets[s].conn) {
- return NULL;
- }
- return &sockets[s];
-}
-
-/**
- * Allocate a new socket for a given netconn.
- *
- * @param newconn the netconn for which to allocate a socket
- * @param accepted 1 if socket has been created by accept(),
- * 0 if socket has been created by socket()
- * @return the index of the new socket; -1 on error
- */
-static int
-alloc_socket(struct netconn *newconn, int accepted)
-{
- int i;
- SYS_ARCH_DECL_PROTECT(lev);
-
- /* allocate a new socket identifier */
- for (i = 0; i < NUM_SOCKETS; ++i) {
- /* Protect socket array */
- SYS_ARCH_PROTECT(lev);
- if (!sockets[i].conn) {
- sockets[i].conn = newconn;
- /* The socket is not yet known to anyone, so no need to protect
- after having marked it as used. */
- SYS_ARCH_UNPROTECT(lev);
- sockets[i].lastdata = NULL;
- sockets[i].lastoffset = 0;
- sockets[i].rcvevent = 0;
- /* TCP sendbuf is empty, but the socket is not yet writable until connected
- * (unless it has been created by accept()). */
- sockets[i].sendevent = (newconn->type == NETCONN_TCP ? (accepted != 0) : 1);
- sockets[i].errevent = 0;
- sockets[i].err = 0;
- sockets[i].select_waiting = 0;
- return i;
- }
- SYS_ARCH_UNPROTECT(lev);
- }
- return -1;
-}
-
-/** Free a socket. The socket's netconn must have been
- * delete before!
- *
- * @param sock the socket to free
- * @param is_tcp != 0 for TCP sockets, used to free lastdata
- */
-static void
-free_socket(struct lwip_sock *sock, int is_tcp)
-{
- void *lastdata;
- SYS_ARCH_DECL_PROTECT(lev);
-
- lastdata = sock->lastdata;
- sock->lastdata = NULL;
- sock->lastoffset = 0;
- sock->err = 0;
-
- /* Protect socket array */
- SYS_ARCH_PROTECT(lev);
- sock->conn = NULL;
- SYS_ARCH_UNPROTECT(lev);
- /* don't use 'sock' after this line, as another task might have allocated it */
-
- if (lastdata != NULL) {
- if (is_tcp) {
- pbuf_free((struct pbuf *)lastdata);
- } else {
- netbuf_delete((struct netbuf *)lastdata);
- }
- }
-}
-
-/* Below this, the well-known socket functions are implemented.
- * Use google.com or opengroup.org to get a good description :-)
- *
- * Exceptions are documented!
- */
-
-int
-lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen)
-{
- struct lwip_sock *sock, *nsock;
- struct netconn *newconn;
- ip_addr_t naddr;
- u16_t port;
- int newsock;
- struct sockaddr_in sin;
- err_t err;
- SYS_ARCH_DECL_PROTECT(lev);
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d)...\n", s));
- sock = get_socket(s);
- if (!sock) {
- return -1;
- }
-
- if (netconn_is_nonblocking(sock->conn) && (sock->rcvevent <= 0)) {
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): returning EWOULDBLOCK\n", s));
- sock_set_errno(sock, EWOULDBLOCK);
- return -1;
- }
-
- /* wait for a new connection */
- err = netconn_accept(sock->conn, &newconn);
- if (err != ERR_OK) {
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_acept failed, err=%d\n", s, err));
- sock_set_errno(sock, err_to_errno(err));
- return -1;
- }
- LWIP_ASSERT("newconn != NULL", newconn != NULL);
- /* Prevent automatic window updates, we do this on our own! */
- netconn_set_noautorecved(newconn, 1);
-
- /* get the IP address and port of the remote host */
- err = netconn_peer(newconn, &naddr, &port);
- if (err != ERR_OK) {
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_peer failed, err=%d\n", s, err));
- netconn_delete(newconn);
- sock_set_errno(sock, err_to_errno(err));
- return -1;
- }
-
- /* Note that POSIX only requires us to check addr is non-NULL. addrlen must
- * not be NULL if addr is valid.
- */
- if (NULL != addr) {
- LWIP_ASSERT("addr valid but addrlen NULL", addrlen != NULL);
- memset(&sin, 0, sizeof(sin));
- sin.sin_len = sizeof(sin);
- sin.sin_family = AF_INET;
- sin.sin_port = htons(port);
- inet_addr_from_ipaddr(&sin.sin_addr, &naddr);
-
- if (*addrlen > sizeof(sin))
- *addrlen = sizeof(sin);
-
- MEMCPY(addr, &sin, *addrlen);
- }
-
- newsock = alloc_socket(newconn, 1);
- if (newsock == -1) {
- netconn_delete(newconn);
- sock_set_errno(sock, ENFILE);
- return -1;
- }
- LWIP_ASSERT("invalid socket index", (newsock >= 0) && (newsock < NUM_SOCKETS));
- LWIP_ASSERT("newconn->callback == event_callback", newconn->callback == event_callback);
- nsock = &sockets[newsock];
-
- /* See event_callback: If data comes in right away after an accept, even
- * though the server task might not have created a new socket yet.
- * In that case, newconn->socket is counted down (newconn->socket--),
- * so nsock->rcvevent is >= 1 here!
- */
- SYS_ARCH_PROTECT(lev);
- nsock->rcvevent += (s16_t)(-1 - newconn->socket);
- newconn->socket = newsock;
- SYS_ARCH_UNPROTECT(lev);
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d) returning new sock=%d addr=", s, newsock));
- ip_addr_debug_print(SOCKETS_DEBUG, &naddr);
- LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", port));
-
- sock_set_errno(sock, 0);
- return newsock;
-}
-
-int
-lwip_bind(int s, const struct sockaddr *name, socklen_t namelen)
-{
- struct lwip_sock *sock;
- ip_addr_t local_addr;
- u16_t local_port;
- err_t err;
- const struct sockaddr_in *name_in;
-
- sock = get_socket(s);
- if (!sock) {
- return -1;
- }
-
- /* check size, familiy and alignment of 'name' */
- LWIP_ERROR("lwip_bind: invalid address", ((namelen == sizeof(struct sockaddr_in)) &&
- ((name->sa_family) == AF_INET) && ((((mem_ptr_t)name) % 4) == 0)),
- sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
- name_in = (const struct sockaddr_in *)(void*)name;
-
- inet_addr_to_ipaddr(&local_addr, &name_in->sin_addr);
- local_port = name_in->sin_port;
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d, addr=", s));
- ip_addr_debug_print(SOCKETS_DEBUG, &local_addr);
- LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", ntohs(local_port)));
-
- err = netconn_bind(sock->conn, &local_addr, ntohs(local_port));
-
- if (err != ERR_OK) {
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) failed, err=%d\n", s, err));
- sock_set_errno(sock, err_to_errno(err));
- return -1;
- }
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) succeeded\n", s));
- sock_set_errno(sock, 0);
- return 0;
-}
-
-int
-lwip_close(int s)
-{
- struct lwip_sock *sock;
- int is_tcp = 0;
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_close(%d)\n", s));
-
- sock = get_socket(s);
- if (!sock) {
- return -1;
- }
-
- if(sock->conn != NULL) {
- is_tcp = netconn_type(sock->conn) == NETCONN_TCP;
- } else {
- LWIP_ASSERT("sock->lastdata == NULL", sock->lastdata == NULL);
- }
-
- netconn_delete(sock->conn);
-
- free_socket(sock, is_tcp);
- set_errno(0);
- return 0;
-}
-
-int
-lwip_connect(int s, const struct sockaddr *name, socklen_t namelen)
-{
- struct lwip_sock *sock;
- err_t err;
- const struct sockaddr_in *name_in;
-
- sock = get_socket(s);
- if (!sock) {
- return -1;
- }
-
- /* check size, familiy and alignment of 'name' */
- LWIP_ERROR("lwip_connect: invalid address", ((namelen == sizeof(struct sockaddr_in)) &&
- ((name->sa_family) == AF_INET) && ((((mem_ptr_t)name) % 4) == 0)),
- sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
- name_in = (const struct sockaddr_in *)(void*)name;
-
- if (name_in->sin_family == AF_UNSPEC) {
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, AF_UNSPEC)\n", s));
- err = netconn_disconnect(sock->conn);
- } else {
- ip_addr_t remote_addr;
- u16_t remote_port;
-
- inet_addr_to_ipaddr(&remote_addr, &name_in->sin_addr);
- remote_port = name_in->sin_port;
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, addr=", s));
- ip_addr_debug_print(SOCKETS_DEBUG, &remote_addr);
- LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", ntohs(remote_port)));
-
- err = netconn_connect(sock->conn, &remote_addr, ntohs(remote_port));
- }
-
- if (err != ERR_OK) {
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) failed, err=%d\n", s, err));
- sock_set_errno(sock, err_to_errno(err));
- return -1;
- }
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) succeeded\n", s));
- sock_set_errno(sock, 0);
- return 0;
-}
-
-/**
- * Set a socket into listen mode.
- * The socket may not have been used for another connection previously.
- *
- * @param s the socket to set to listening mode
- * @param backlog (ATTENTION: needs TCP_LISTEN_BACKLOG=1)
- * @return 0 on success, non-zero on failure
- */
-int
-lwip_listen(int s, int backlog)
-{
- struct lwip_sock *sock;
- err_t err;
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d, backlog=%d)\n", s, backlog));
-
- sock = get_socket(s);
- if (!sock) {
- return -1;
- }
-
- /* limit the "backlog" parameter to fit in an u8_t */
- backlog = LWIP_MIN(LWIP_MAX(backlog, 0), 0xff);
-
- err = netconn_listen_with_backlog(sock->conn, (u8_t)backlog);
-
- if (err != ERR_OK) {
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d) failed, err=%d\n", s, err));
- sock_set_errno(sock, err_to_errno(err));
- return -1;
- }
-
- sock_set_errno(sock, 0);
- return 0;
-}
-
-int
-lwip_recvfrom(int s, void *mem, size_t len, int flags,
- struct sockaddr *from, socklen_t *fromlen)
-{
- struct lwip_sock *sock;
- void *buf = NULL;
- struct pbuf *p;
- u16_t buflen, copylen;
- int off = 0;
- ip_addr_t *addr;
- u16_t port;
- u8_t done = 0;
- err_t err;
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d, %p, %"SZT_F", 0x%x, ..)\n", s, mem, len, flags));
- sock = get_socket(s);
- if (!sock) {
- return -1;
- }
-
- do {
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: top while sock->lastdata=%p\n", sock->lastdata));
- /* Check if there is data left from the last recv operation. */
- if (sock->lastdata) {
- buf = sock->lastdata;
- } else {
- /* If this is non-blocking call, then check first */
- if (((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) &&
- (sock->rcvevent <= 0)) {
- if (off > 0) {
- /* update receive window */
- netconn_recved(sock->conn, (u32_t)off);
- /* already received data, return that */
- sock_set_errno(sock, 0);
- return off;
- }
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): returning EWOULDBLOCK\n", s));
- sock_set_errno(sock, EWOULDBLOCK);
- return -1;
- }
-
- /* No data was left from the previous operation, so we try to get
- some from the network. */
- if (netconn_type(sock->conn) == NETCONN_TCP) {
- err = netconn_recv_tcp_pbuf(sock->conn, (struct pbuf **)&buf);
- } else {
- err = netconn_recv(sock->conn, (struct netbuf **)&buf);
- }
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: netconn_recv err=%d, netbuf=%p\n",
- err, buf));
-
- if (err != ERR_OK) {
- if (off > 0) {
- /* update receive window */
- netconn_recved(sock->conn, (u32_t)off);
- /* already received data, return that */
- sock_set_errno(sock, 0);
- return off;
- }
- /* We should really do some error checking here. */
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): buf == NULL, error is \"%s\"!\n",
- s, lwip_strerr(err)));
- sock_set_errno(sock, err_to_errno(err));
- if (err == ERR_CLSD) {
- return 0;
- } else {
- return -1;
- }
- }
- LWIP_ASSERT("buf != NULL", buf != NULL);
- sock->lastdata = buf;
- }
-
- if (netconn_type(sock->conn) == NETCONN_TCP) {
- p = (struct pbuf *)buf;
- } else {
- p = ((struct netbuf *)buf)->p;
- }
- buflen = p->tot_len;
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: buflen=%"U16_F" len=%"SZT_F" off=%d sock->lastoffset=%"U16_F"\n",
- buflen, len, off, sock->lastoffset));
-
- buflen -= sock->lastoffset;
-
- if (len > buflen) {
- copylen = buflen;
- } else {
- copylen = (u16_t)len;
- }
-
- /* copy the contents of the received buffer into
- the supplied memory pointer mem */
- pbuf_copy_partial(p, (u8_t*)mem + off, copylen, sock->lastoffset);
-
- off += copylen;
-
- if (netconn_type(sock->conn) == NETCONN_TCP) {
- LWIP_ASSERT("invalid copylen, len would underflow", len >= copylen);
- len -= copylen;
- if ( (len <= 0) ||
- (p->flags & PBUF_FLAG_PUSH) ||
- (sock->rcvevent <= 0) ||
- ((flags & MSG_PEEK)!=0)) {
- done = 1;
- }
- } else {
- done = 1;
- }
-
- /* Check to see from where the data was.*/
- if (done) {
- ip_addr_t fromaddr;
- if (from && fromlen) {
- struct sockaddr_in sin;
-
- if (netconn_type(sock->conn) == NETCONN_TCP) {
- addr = &fromaddr;
- netconn_getaddr(sock->conn, addr, &port, 0);
- } else {
- addr = netbuf_fromaddr((struct netbuf *)buf);
- port = netbuf_fromport((struct netbuf *)buf);
- }
-
- memset(&sin, 0, sizeof(sin));
- sin.sin_len = sizeof(sin);
- sin.sin_family = AF_INET;
- sin.sin_port = htons(port);
- inet_addr_from_ipaddr(&sin.sin_addr, addr);
-
- if (*fromlen > sizeof(sin)) {
- *fromlen = sizeof(sin);
- }
-
- MEMCPY(from, &sin, *fromlen);
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
- ip_addr_debug_print(SOCKETS_DEBUG, addr);
- LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
- } else {
-#if SOCKETS_DEBUG
- if (netconn_type(sock->conn) == NETCONN_TCP) {
- addr = &fromaddr;
- netconn_getaddr(sock->conn, addr, &port, 0);
- } else {
- addr = netbuf_fromaddr((struct netbuf *)buf);
- port = netbuf_fromport((struct netbuf *)buf);
- }
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
- ip_addr_debug_print(SOCKETS_DEBUG, addr);
- LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
-#endif /* SOCKETS_DEBUG */
- }
- }
-
- /* If we don't peek the incoming message... */
- if ((flags & MSG_PEEK) == 0) {
- /* If this is a TCP socket, check if there is data left in the
- buffer. If so, it should be saved in the sock structure for next
- time around. */
- if ((netconn_type(sock->conn) == NETCONN_TCP) && (buflen - copylen > 0)) {
- sock->lastdata = buf;
- sock->lastoffset += copylen;
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: lastdata now netbuf=%p\n", buf));
- } else {
- sock->lastdata = NULL;
- sock->lastoffset = 0;
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: deleting netbuf=%p\n", buf));
- if (netconn_type(sock->conn) == NETCONN_TCP) {
- pbuf_free((struct pbuf *)buf);
- } else {
- netbuf_delete((struct netbuf *)buf);
- }
- }
- }
- } while (!done);
-
- if (off > 0) {
- /* update receive window */
- netconn_recved(sock->conn, (u32_t)off);
- }
- sock_set_errno(sock, 0);
- return off;
-}
-
-int
-lwip_read(int s, void *mem, size_t len)
-{
- return lwip_recvfrom(s, mem, len, 0, NULL, NULL);
-}
-
-int
-lwip_recv(int s, void *mem, size_t len, int flags)
-{
- return lwip_recvfrom(s, mem, len, flags, NULL, NULL);
-}
-
-int
-lwip_send(int s, const void *data, size_t size, int flags)
-{
- struct lwip_sock *sock;
- err_t err;
- u8_t write_flags;
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d, data=%p, size=%"SZT_F", flags=0x%x)\n",
- s, data, size, flags));
-
- sock = get_socket(s);
- if (!sock) {
- return -1;
- }
-
- if (sock->conn->type != NETCONN_TCP) {
-#if (LWIP_UDP || LWIP_RAW)
- return lwip_sendto(s, data, size, flags, NULL, 0);
-#else /* (LWIP_UDP || LWIP_RAW) */
- sock_set_errno(sock, err_to_errno(ERR_ARG));
- return -1;
-#endif /* (LWIP_UDP || LWIP_RAW) */
- }
-
- if ((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) {
- if ((size > TCP_SND_BUF) || ((size / TCP_MSS) > TCP_SND_QUEUELEN)) {
- /* too much data to ever send nonblocking! */
- sock_set_errno(sock, EMSGSIZE);
- return -1;
- }
- }
-
- write_flags = NETCONN_COPY |
- ((flags & MSG_MORE) ? NETCONN_MORE : 0) |
- ((flags & MSG_DONTWAIT) ? NETCONN_DONTBLOCK : 0);
- err = netconn_write(sock->conn, data, size, write_flags);
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d) err=%d size=%"SZT_F"\n", s, err, size));
- sock_set_errno(sock, err_to_errno(err));
- return (err == ERR_OK ? (int)size : -1);
-}
-
-int
-lwip_sendto(int s, const void *data, size_t size, int flags,
- const struct sockaddr *to, socklen_t tolen)
-{
- struct lwip_sock *sock;
- err_t err;
- u16_t short_size;
- const struct sockaddr_in *to_in;
- u16_t remote_port;
-#if !LWIP_TCPIP_CORE_LOCKING
- struct netbuf buf;
-#endif
-
- sock = get_socket(s);
- if (!sock) {
- return -1;
- }
-
- if (sock->conn->type == NETCONN_TCP) {
-#if LWIP_TCP
- return lwip_send(s, data, size, flags);
-#else /* LWIP_TCP */
- LWIP_UNUSED_ARG(flags);
- sock_set_errno(sock, err_to_errno(ERR_ARG));
- return -1;
-#endif /* LWIP_TCP */
- }
-
- /* @todo: split into multiple sendto's? */
- LWIP_ASSERT("lwip_sendto: size must fit in u16_t", size <= 0xffff);
- short_size = (u16_t)size;
- LWIP_ERROR("lwip_sendto: invalid address", (((to == NULL) && (tolen == 0)) ||
- ((tolen == sizeof(struct sockaddr_in)) &&
- ((to->sa_family) == AF_INET) && ((((mem_ptr_t)to) % 4) == 0))),
- sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
- to_in = (const struct sockaddr_in *)(void*)to;
-
-#if LWIP_TCPIP_CORE_LOCKING
- /* Should only be consider like a sample or a simple way to experiment this option (no check of "to" field...) */
- {
- struct pbuf* p;
- ip_addr_t *remote_addr;
-
-#if LWIP_NETIF_TX_SINGLE_PBUF
- p = pbuf_alloc(PBUF_TRANSPORT, short_size, PBUF_RAM);
- if (p != NULL) {
-#if LWIP_CHECKSUM_ON_COPY
- u16_t chksum = 0;
- if (sock->conn->type != NETCONN_RAW) {
- chksum = LWIP_CHKSUM_COPY(p->payload, data, short_size);
- } else
-#endif /* LWIP_CHECKSUM_ON_COPY */
- MEMCPY(p->payload, data, size);
-#else /* LWIP_NETIF_TX_SINGLE_PBUF */
- p = pbuf_alloc(PBUF_TRANSPORT, short_size, PBUF_REF);
- if (p != NULL) {
- p->payload = (void*)data;
-#endif /* LWIP_NETIF_TX_SINGLE_PBUF */
-
- if (to_in != NULL) {
- inet_addr_to_ipaddr_p(remote_addr, &to_in->sin_addr);
- remote_port = ntohs(to_in->sin_port);
- } else {
- remote_addr = &sock->conn->pcb.raw->remote_ip;
- if (sock->conn->type == NETCONN_RAW) {
- remote_port = 0;
- } else {
- remote_port = sock->conn->pcb.udp->remote_port;
- }
- }
-
- LOCK_TCPIP_CORE();
- if (sock->conn->type == NETCONN_RAW) {
- err = sock->conn->last_err = raw_sendto(sock->conn->pcb.raw, p, remote_addr);
- } else {
-#if LWIP_UDP
-#if LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF
- err = sock->conn->last_err = udp_sendto_chksum(sock->conn->pcb.udp, p,
- remote_addr, remote_port, 1, chksum);
-#else /* LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF */
- err = sock->conn->last_err = udp_sendto(sock->conn->pcb.udp, p,
- remote_addr, remote_port);
-#endif /* LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF */
-#else /* LWIP_UDP */
- err = ERR_ARG;
-#endif /* LWIP_UDP */
- }
- UNLOCK_TCPIP_CORE();
-
- pbuf_free(p);
- } else {
- err = ERR_MEM;
- }
- }
-#else /* LWIP_TCPIP_CORE_LOCKING */
- /* initialize a buffer */
- buf.p = buf.ptr = NULL;
-#if LWIP_CHECKSUM_ON_COPY
- buf.flags = 0;
-#endif /* LWIP_CHECKSUM_ON_COPY */
- if (to) {
- inet_addr_to_ipaddr(&buf.addr, &to_in->sin_addr);
- remote_port = ntohs(to_in->sin_port);
- netbuf_fromport(&buf) = remote_port;
- } else {
- remote_port = 0;
- ip_addr_set_any(&buf.addr);
- netbuf_fromport(&buf) = 0;
- }
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_sendto(%d, data=%p, short_size=%"U16_F", flags=0x%x to=",
- s, data, short_size, flags));
- ip_addr_debug_print(SOCKETS_DEBUG, &buf.addr);
- LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", remote_port));
-
- /* make the buffer point to the data that should be sent */
-#if LWIP_NETIF_TX_SINGLE_PBUF
- /* Allocate a new netbuf and copy the data into it. */
- if (netbuf_alloc(&buf, short_size) == NULL) {
- err = ERR_MEM;
- } else {
-#if LWIP_CHECKSUM_ON_COPY
- if (sock->conn->type != NETCONN_RAW) {
- u16_t chksum = LWIP_CHKSUM_COPY(buf.p->payload, data, short_size);
- netbuf_set_chksum(&buf, chksum);
- err = ERR_OK;
- } else
-#endif /* LWIP_CHECKSUM_ON_COPY */
- {
- err = netbuf_take(&buf, data, short_size);
- }
- }
-#else /* LWIP_NETIF_TX_SINGLE_PBUF */
- err = netbuf_ref(&buf, data, short_size);
-#endif /* LWIP_NETIF_TX_SINGLE_PBUF */
- if (err == ERR_OK) {
- /* send the data */
- err = netconn_send(sock->conn, &buf);
- }
-
- /* deallocated the buffer */
- netbuf_free(&buf);
-#endif /* LWIP_TCPIP_CORE_LOCKING */
- sock_set_errno(sock, err_to_errno(err));
- return (err == ERR_OK ? short_size : -1);
-}
-
-int
-lwip_socket(int domain, int type, int protocol)
-{
- struct netconn *conn;
- int i;
-
- LWIP_UNUSED_ARG(domain);
-
- /* create a netconn */
- switch (type) {
- case SOCK_RAW:
- conn = netconn_new_with_proto_and_callback(NETCONN_RAW, (u8_t)protocol, event_callback);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_RAW, %d) = ",
- domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
- break;
- case SOCK_DGRAM:
- conn = netconn_new_with_callback( (protocol == IPPROTO_UDPLITE) ?
- NETCONN_UDPLITE : NETCONN_UDP, event_callback);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_DGRAM, %d) = ",
- domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
- break;
- case SOCK_STREAM:
- conn = netconn_new_with_callback(NETCONN_TCP, event_callback);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_STREAM, %d) = ",
- domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
- if (conn != NULL) {
- /* Prevent automatic window updates, we do this on our own! */
- netconn_set_noautorecved(conn, 1);
- }
- break;
- default:
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%d, %d/UNKNOWN, %d) = -1\n",
- domain, type, protocol));
- set_errno(EINVAL);
- return -1;
- }
-
- if (!conn) {
- LWIP_DEBUGF(SOCKETS_DEBUG, ("-1 / ENOBUFS (could not create netconn)\n"));
- set_errno(ENOBUFS);
- return -1;
- }
-
- i = alloc_socket(conn, 0);
-
- if (i == -1) {
- netconn_delete(conn);
- set_errno(ENFILE);
- return -1;
- }
- conn->socket = i;
- LWIP_DEBUGF(SOCKETS_DEBUG, ("%d\n", i));
- set_errno(0);
- return i;
-}
-
-int
-lwip_write(int s, const void *data, size_t size)
-{
- return lwip_send(s, data, size, 0);
-}
-
-/**
- * Go through the readset and writeset lists and see which socket of the sockets
- * set in the sets has events. On return, readset, writeset and exceptset have
- * the sockets enabled that had events.
- *
- * exceptset is not used for now!!!
- *
- * @param maxfdp1 the highest socket index in the sets
- * @param readset_in: set of sockets to check for read events
- * @param writeset_in: set of sockets to check for write events
- * @param exceptset_in: set of sockets to check for error events
- * @param readset_out: set of sockets that had read events
- * @param writeset_out: set of sockets that had write events
- * @param exceptset_out: set os sockets that had error events
- * @return number of sockets that had events (read/write/exception) (>= 0)
- */
-static int
-lwip_selscan(int maxfdp1, fd_set *readset_in, fd_set *writeset_in, fd_set *exceptset_in,
- fd_set *readset_out, fd_set *writeset_out, fd_set *exceptset_out)
-{
- int i, nready = 0;
- fd_set lreadset, lwriteset, lexceptset;
- struct lwip_sock *sock;
- SYS_ARCH_DECL_PROTECT(lev);
-
- FD_ZERO(&lreadset);
- FD_ZERO(&lwriteset);
- FD_ZERO(&lexceptset);
-
- /* Go through each socket in each list to count number of sockets which
- currently match */
- for(i = 0; i < maxfdp1; i++) {
- void* lastdata = NULL;
- s16_t rcvevent = 0;
- u16_t sendevent = 0;
- u16_t errevent = 0;
- /* First get the socket's status (protected)... */
- SYS_ARCH_PROTECT(lev);
- sock = tryget_socket(i);
- if (sock != NULL) {
- lastdata = sock->lastdata;
- rcvevent = sock->rcvevent;
- sendevent = sock->sendevent;
- errevent = sock->errevent;
- }
- SYS_ARCH_UNPROTECT(lev);
- /* ... then examine it: */
- /* See if netconn of this socket is ready for read */
- if (readset_in && FD_ISSET(i, readset_in) && ((lastdata != NULL) || (rcvevent > 0))) {
- FD_SET(i, &lreadset);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for reading\n", i));
- nready++;
- }
- /* See if netconn of this socket is ready for write */
- if (writeset_in && FD_ISSET(i, writeset_in) && (sendevent != 0)) {
- FD_SET(i, &lwriteset);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for writing\n", i));
- nready++;
- }
- /* See if netconn of this socket had an error */
- if (exceptset_in && FD_ISSET(i, exceptset_in) && (errevent != 0)) {
- FD_SET(i, &lexceptset);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for exception\n", i));
- nready++;
- }
- }
- /* copy local sets to the ones provided as arguments */
- *readset_out = lreadset;
- *writeset_out = lwriteset;
- *exceptset_out = lexceptset;
-
- LWIP_ASSERT("nready >= 0", nready >= 0);
- return nready;
-}
-
-/**
- * Processing exceptset is not yet implemented.
- */
-int
-lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
- struct timeval *timeout)
-{
- u32_t waitres = 0;
- int nready;
- fd_set lreadset, lwriteset, lexceptset;
- u32_t msectimeout;
- struct lwip_select_cb select_cb;
- err_t err;
- int i;
- SYS_ARCH_DECL_PROTECT(lev);
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select(%d, %p, %p, %p, tvsec=%"S32_F" tvusec=%"S32_F")\n",
- maxfdp1, (void *)readset, (void *) writeset, (void *) exceptset,
- timeout ? (s32_t)timeout->tv_sec : (s32_t)-1,
- timeout ? (s32_t)timeout->tv_usec : (s32_t)-1));
-
- /* Go through each socket in each list to count number of sockets which
- currently match */
- nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
-
- /* If we don't have any current events, then suspend if we are supposed to */
- if (!nready) {
- if (timeout && timeout->tv_sec == 0 && timeout->tv_usec == 0) {
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: no timeout, returning 0\n"));
- /* This is OK as the local fdsets are empty and nready is zero,
- or we would have returned earlier. */
- goto return_copy_fdsets;
- }
-
- /* None ready: add our semaphore to list:
- We don't actually need any dynamic memory. Our entry on the
- list is only valid while we are in this function, so it's ok
- to use local variables. */
-
- select_cb.next = NULL;
- select_cb.prev = NULL;
- select_cb.readset = readset;
- select_cb.writeset = writeset;
- select_cb.exceptset = exceptset;
- select_cb.sem_signalled = 0;
- err = sys_sem_new(&select_cb.sem, 0);
- if (err != ERR_OK) {
- /* failed to create semaphore */
- set_errno(ENOMEM);
- return -1;
- }
-
- /* Protect the select_cb_list */
- SYS_ARCH_PROTECT(lev);
-
- /* Put this select_cb on top of list */
- select_cb.next = select_cb_list;
- if (select_cb_list != NULL) {
- select_cb_list->prev = &select_cb;
- }
- select_cb_list = &select_cb;
- /* Increasing this counter tells even_callback that the list has changed. */
- select_cb_ctr++;
-
- /* Now we can safely unprotect */
- SYS_ARCH_UNPROTECT(lev);
-
- /* Increase select_waiting for each socket we are interested in */
- for(i = 0; i < maxfdp1; i++) {
- if ((readset && FD_ISSET(i, readset)) ||
- (writeset && FD_ISSET(i, writeset)) ||
- (exceptset && FD_ISSET(i, exceptset))) {
- struct lwip_sock *sock = tryget_socket(i);
- LWIP_ASSERT("sock != NULL", sock != NULL);
- SYS_ARCH_PROTECT(lev);
- sock->select_waiting++;
- LWIP_ASSERT("sock->select_waiting > 0", sock->select_waiting > 0);
- SYS_ARCH_UNPROTECT(lev);
- }
- }
-
- /* Call lwip_selscan again: there could have been events between
- the last scan (whithout us on the list) and putting us on the list! */
- nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
- if (!nready) {
- /* Still none ready, just wait to be woken */
- if (timeout == 0) {
- /* Wait forever */
- msectimeout = 0;
- } else {
- msectimeout = ((timeout->tv_sec * 1000) + ((timeout->tv_usec + 500)/1000));
- if (msectimeout == 0) {
- /* Wait 1ms at least (0 means wait forever) */
- msectimeout = 1;
- }
- }
-
- waitres = sys_arch_sem_wait(&select_cb.sem, msectimeout);
- }
- /* Increase select_waiting for each socket we are interested in */
- for(i = 0; i < maxfdp1; i++) {
- if ((readset && FD_ISSET(i, readset)) ||
- (writeset && FD_ISSET(i, writeset)) ||
- (exceptset && FD_ISSET(i, exceptset))) {
- struct lwip_sock *sock = tryget_socket(i);
- LWIP_ASSERT("sock != NULL", sock != NULL);
- SYS_ARCH_PROTECT(lev);
- sock->select_waiting--;
- LWIP_ASSERT("sock->select_waiting >= 0", sock->select_waiting >= 0);
- SYS_ARCH_UNPROTECT(lev);
- }
- }
- /* Take us off the list */
- SYS_ARCH_PROTECT(lev);
- if (select_cb.next != NULL) {
- select_cb.next->prev = select_cb.prev;
- }
- if (select_cb_list == &select_cb) {
- LWIP_ASSERT("select_cb.prev == NULL", select_cb.prev == NULL);
- select_cb_list = select_cb.next;
- } else {
- LWIP_ASSERT("select_cb.prev != NULL", select_cb.prev != NULL);
- select_cb.prev->next = select_cb.next;
- }
- /* Increasing this counter tells even_callback that the list has changed. */
- select_cb_ctr++;
- SYS_ARCH_UNPROTECT(lev);
-
- sys_sem_free(&select_cb.sem);
- if (waitres == SYS_ARCH_TIMEOUT) {
- /* Timeout */
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: timeout expired\n"));
- /* This is OK as the local fdsets are empty and nready is zero,
- or we would have returned earlier. */
- goto return_copy_fdsets;
- }
-
- /* See what's set */
- nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
- }
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: nready=%d\n", nready));
-return_copy_fdsets:
- set_errno(0);
- if (readset) {
- *readset = lreadset;
- }
- if (writeset) {
- *writeset = lwriteset;
- }
- if (exceptset) {
- *exceptset = lexceptset;
- }
-
-
- return nready;
-}
-
-/**
- * Callback registered in the netconn layer for each socket-netconn.
- * Processes recvevent (data available) and wakes up tasks waiting for select.
- */
-static void
-event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len)
-{
- int s;
- struct lwip_sock *sock;
- struct lwip_select_cb *scb;
- int last_select_cb_ctr;
- SYS_ARCH_DECL_PROTECT(lev);
-
- LWIP_UNUSED_ARG(len);
-
- /* Get socket */
- if (conn) {
- s = conn->socket;
- if (s < 0) {
- /* Data comes in right away after an accept, even though
- * the server task might not have created a new socket yet.
- * Just count down (or up) if that's the case and we
- * will use the data later. Note that only receive events
- * can happen before the new socket is set up. */
- SYS_ARCH_PROTECT(lev);
- if (conn->socket < 0) {
- if (evt == NETCONN_EVT_RCVPLUS) {
- conn->socket--;
- }
- SYS_ARCH_UNPROTECT(lev);
- return;
- }
- s = conn->socket;
- SYS_ARCH_UNPROTECT(lev);
- }
-
- sock = get_socket(s);
- if (!sock) {
- return;
- }
- } else {
- return;
- }
-
- SYS_ARCH_PROTECT(lev);
- /* Set event as required */
- switch (evt) {
- case NETCONN_EVT_RCVPLUS:
- sock->rcvevent++;
- break;
- case NETCONN_EVT_RCVMINUS:
- sock->rcvevent--;
- break;
- case NETCONN_EVT_SENDPLUS:
- sock->sendevent = 1;
- break;
- case NETCONN_EVT_SENDMINUS:
- sock->sendevent = 0;
- break;
- case NETCONN_EVT_ERROR:
- sock->errevent = 1;
- break;
- default:
- LWIP_ASSERT("unknown event", 0);
- break;
- }
-
- if (sock->select_waiting == 0) {
- /* noone is waiting for this socket, no need to check select_cb_list */
- SYS_ARCH_UNPROTECT(lev);
- return;
- }
-
- /* Now decide if anyone is waiting for this socket */
- /* NOTE: This code goes through the select_cb_list list multiple times
- ONLY IF a select was actually waiting. We go through the list the number
- of waiting select calls + 1. This list is expected to be small. */
-
- /* At this point, SYS_ARCH is still protected! */
-again:
- for (scb = select_cb_list; scb != NULL; scb = scb->next) {
- if (scb->sem_signalled == 0) {
- /* semaphore not signalled yet */
- int do_signal = 0;
- /* Test this select call for our socket */
- if (sock->rcvevent > 0) {
- if (scb->readset && FD_ISSET(s, scb->readset)) {
- do_signal = 1;
- }
- }
- if (sock->sendevent != 0) {
- if (!do_signal && scb->writeset && FD_ISSET(s, scb->writeset)) {
- do_signal = 1;
- }
- }
- if (sock->errevent != 0) {
- if (!do_signal && scb->exceptset && FD_ISSET(s, scb->exceptset)) {
- do_signal = 1;
- }
- }
- if (do_signal) {
- scb->sem_signalled = 1;
- /* Don't call SYS_ARCH_UNPROTECT() before signaling the semaphore, as this might
- lead to the select thread taking itself off the list, invalidagin the semaphore. */
- sys_sem_signal(&scb->sem);
- }
- }
- /* unlock interrupts with each step */
- last_select_cb_ctr = select_cb_ctr;
- SYS_ARCH_UNPROTECT(lev);
- /* this makes sure interrupt protection time is short */
- SYS_ARCH_PROTECT(lev);
- if (last_select_cb_ctr != select_cb_ctr) {
- /* someone has changed select_cb_list, restart at the beginning */
- goto again;
- }
- }
- SYS_ARCH_UNPROTECT(lev);
-}
-
-/**
- * Unimplemented: Close one end of a full-duplex connection.
- * Currently, the full connection is closed.
- */
-int
-lwip_shutdown(int s, int how)
-{
- struct lwip_sock *sock;
- err_t err;
- u8_t shut_rx = 0, shut_tx = 0;
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_shutdown(%d, how=%d)\n", s, how));
-
- sock = get_socket(s);
- if (!sock) {
- return -1;
- }
-
- if (sock->conn != NULL) {
- if (netconn_type(sock->conn) != NETCONN_TCP) {
- sock_set_errno(sock, EOPNOTSUPP);
- return EOPNOTSUPP;
- }
- } else {
- sock_set_errno(sock, ENOTCONN);
- return ENOTCONN;
- }
-
- if (how == SHUT_RD) {
- shut_rx = 1;
- } else if (how == SHUT_WR) {
- shut_tx = 1;
- } else if(how == SHUT_RDWR) {
- shut_rx = 1;
- shut_tx = 1;
- } else {
- sock_set_errno(sock, EINVAL);
- return EINVAL;
- }
- err = netconn_shutdown(sock->conn, shut_rx, shut_tx);
-
- sock_set_errno(sock, err_to_errno(err));
- return (err == ERR_OK ? 0 : -1);
-}
-
-static int
-lwip_getaddrname(int s, struct sockaddr *name, socklen_t *namelen, u8_t local)
-{
- struct lwip_sock *sock;
- struct sockaddr_in sin;
- ip_addr_t naddr;
-
- sock = get_socket(s);
- if (!sock) {
- return -1;
- }
-
- memset(&sin, 0, sizeof(sin));
- sin.sin_len = sizeof(sin);
- sin.sin_family = AF_INET;
-
- /* get the IP address and port */
- netconn_getaddr(sock->conn, &naddr, &sin.sin_port, local);
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getaddrname(%d, addr=", s));
- ip_addr_debug_print(SOCKETS_DEBUG, &naddr);
- LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", sin.sin_port));
-
- sin.sin_port = htons(sin.sin_port);
- inet_addr_from_ipaddr(&sin.sin_addr, &naddr);
-
- if (*namelen > sizeof(sin)) {
- *namelen = sizeof(sin);
- }
-
- MEMCPY(name, &sin, *namelen);
- sock_set_errno(sock, 0);
- return 0;
-}
-
-int
-lwip_getpeername(int s, struct sockaddr *name, socklen_t *namelen)
-{
- return lwip_getaddrname(s, name, namelen, 0);
-}
-
-int
-lwip_getsockname(int s, struct sockaddr *name, socklen_t *namelen)
-{
- return lwip_getaddrname(s, name, namelen, 1);
-}
-
-int
-lwip_getsockopt(int s, int level, int optname, void *optval, socklen_t *optlen)
-{
- err_t err = ERR_OK;
- struct lwip_sock *sock = get_socket(s);
- struct lwip_setgetsockopt_data data;
-
- if (!sock) {
- return -1;
- }
-
- if ((NULL == optval) || (NULL == optlen)) {
- sock_set_errno(sock, EFAULT);
- return -1;
- }
-
- /* Do length and type checks for the various options first, to keep it readable. */
- switch (level) {
-
-/* Level: SOL_SOCKET */
- case SOL_SOCKET:
- switch (optname) {
-
- case SO_ACCEPTCONN:
- case SO_BROADCAST:
- /* UNIMPL case SO_DEBUG: */
- /* UNIMPL case SO_DONTROUTE: */
- case SO_ERROR:
- case SO_KEEPALIVE:
- /* UNIMPL case SO_CONTIMEO: */
- /* UNIMPL case SO_SNDTIMEO: */
-#if LWIP_SO_RCVTIMEO
- case SO_RCVTIMEO:
-#endif /* LWIP_SO_RCVTIMEO */
-#if LWIP_SO_RCVBUF
- case SO_RCVBUF:
-#endif /* LWIP_SO_RCVBUF */
- /* UNIMPL case SO_OOBINLINE: */
- /* UNIMPL case SO_SNDBUF: */
- /* UNIMPL case SO_RCVLOWAT: */
- /* UNIMPL case SO_SNDLOWAT: */
-#if SO_REUSE
- case SO_REUSEADDR:
- case SO_REUSEPORT:
-#endif /* SO_REUSE */
- case SO_TYPE:
- /* UNIMPL case SO_USELOOPBACK: */
- if (*optlen < sizeof(int)) {
- err = EINVAL;
- }
- break;
-
- case SO_NO_CHECK:
- if (*optlen < sizeof(int)) {
- err = EINVAL;
- }
-#if LWIP_UDP
- if ((sock->conn->type != NETCONN_UDP) ||
- ((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) {
- /* this flag is only available for UDP, not for UDP lite */
- err = EAFNOSUPPORT;
- }
-#endif /* LWIP_UDP */
- break;
-
- default:
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n",
- s, optname));
- err = ENOPROTOOPT;
- } /* switch (optname) */
- break;
-
-/* Level: IPPROTO_IP */
- case IPPROTO_IP:
- switch (optname) {
- /* UNIMPL case IP_HDRINCL: */
- /* UNIMPL case IP_RCVDSTADDR: */
- /* UNIMPL case IP_RCVIF: */
- case IP_TTL:
- case IP_TOS:
- if (*optlen < sizeof(int)) {
- err = EINVAL;
- }
- break;
-#if LWIP_IGMP
- case IP_MULTICAST_TTL:
- if (*optlen < sizeof(u8_t)) {
- err = EINVAL;
- }
- break;
- case IP_MULTICAST_IF:
- if (*optlen < sizeof(struct in_addr)) {
- err = EINVAL;
- }
- break;
- case IP_MULTICAST_LOOP:
- if (*optlen < sizeof(u8_t)) {
- err = EINVAL;
- }
- if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
- err = EAFNOSUPPORT;
- }
- break;
-#endif /* LWIP_IGMP */
-
- default:
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n",
- s, optname));
- err = ENOPROTOOPT;
- } /* switch (optname) */
- break;
-
-#if LWIP_TCP
-/* Level: IPPROTO_TCP */
- case IPPROTO_TCP:
- if (*optlen < sizeof(int)) {
- err = EINVAL;
- break;
- }
-
- /* If this is no TCP socket, ignore any options. */
- if (sock->conn->type != NETCONN_TCP)
- return 0;
-
- switch (optname) {
- case TCP_NODELAY:
- case TCP_KEEPALIVE:
-#if LWIP_TCP_KEEPALIVE
- case TCP_KEEPIDLE:
- case TCP_KEEPINTVL:
- case TCP_KEEPCNT:
-#endif /* LWIP_TCP_KEEPALIVE */
- break;
-
- default:
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
- s, optname));
- err = ENOPROTOOPT;
- } /* switch (optname) */
- break;
-#endif /* LWIP_TCP */
-#if LWIP_UDP && LWIP_UDPLITE
-/* Level: IPPROTO_UDPLITE */
- case IPPROTO_UDPLITE:
- if (*optlen < sizeof(int)) {
- err = EINVAL;
- break;
- }
-
- /* If this is no UDP lite socket, ignore any options. */
- if (sock->conn->type != NETCONN_UDPLITE) {
- return 0;
- }
-
- switch (optname) {
- case UDPLITE_SEND_CSCOV:
- case UDPLITE_RECV_CSCOV:
- break;
-
- default:
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n",
- s, optname));
- err = ENOPROTOOPT;
- } /* switch (optname) */
- break;
-#endif /* LWIP_UDP && LWIP_UDPLITE*/
-/* UNDEFINED LEVEL */
- default:
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n",
- s, level, optname));
- err = ENOPROTOOPT;
- } /* switch */
-
-
- if (err != ERR_OK) {
- sock_set_errno(sock, err);
- return -1;
- }
-
- /* Now do the actual option processing */
- data.sock = sock;
-#ifdef LWIP_DEBUG
- data.s = s;
-#endif /* LWIP_DEBUG */
- data.level = level;
- data.optname = optname;
- data.optval = optval;
- data.optlen = optlen;
- data.err = err;
- tcpip_callback(lwip_getsockopt_internal, &data);
- sys_arch_sem_wait(&sock->conn->op_completed, 0);
- /* maybe lwip_getsockopt_internal has changed err */
- err = data.err;
-
- sock_set_errno(sock, err);
- return err ? -1 : 0;
-}
-
-static void
-lwip_getsockopt_internal(void *arg)
-{
- struct lwip_sock *sock;
-#ifdef LWIP_DEBUG
- int s;
-#endif /* LWIP_DEBUG */
- int level, optname;
- void *optval;
- struct lwip_setgetsockopt_data *data;
-
- LWIP_ASSERT("arg != NULL", arg != NULL);
-
- data = (struct lwip_setgetsockopt_data*)arg;
- sock = data->sock;
-#ifdef LWIP_DEBUG
- s = data->s;
-#endif /* LWIP_DEBUG */
- level = data->level;
- optname = data->optname;
- optval = data->optval;
-
- switch (level) {
-
-/* Level: SOL_SOCKET */
- case SOL_SOCKET:
- switch (optname) {
-
- /* The option flags */
- case SO_ACCEPTCONN:
- case SO_BROADCAST:
- /* UNIMPL case SO_DEBUG: */
- /* UNIMPL case SO_DONTROUTE: */
- case SO_KEEPALIVE:
- /* UNIMPL case SO_OOBINCLUDE: */
-#if SO_REUSE
- case SO_REUSEADDR:
- case SO_REUSEPORT:
-#endif /* SO_REUSE */
- /*case SO_USELOOPBACK: UNIMPL */
- *(int*)optval = sock->conn->pcb.ip->so_options & optname;
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, optname=0x%x, ..) = %s\n",
- s, optname, (*(int*)optval?"on":"off")));
- break;
-
- case SO_TYPE:
- switch (NETCONNTYPE_GROUP(sock->conn->type)) {
- case NETCONN_RAW:
- *(int*)optval = SOCK_RAW;
- break;
- case NETCONN_TCP:
- *(int*)optval = SOCK_STREAM;
- break;
- case NETCONN_UDP:
- *(int*)optval = SOCK_DGRAM;
- break;
- default: /* unrecognized socket type */
- *(int*)optval = sock->conn->type;
- LWIP_DEBUGF(SOCKETS_DEBUG,
- ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE): unrecognized socket type %d\n",
- s, *(int *)optval));
- } /* switch (sock->conn->type) */
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE) = %d\n",
- s, *(int *)optval));
- break;
-
- case SO_ERROR:
- /* only overwrite ERR_OK or tempoary errors */
- if ((sock->err == 0) || (sock->err == EINPROGRESS)) {
- sock_set_errno(sock, err_to_errno(sock->conn->last_err));
- }
- *(int *)optval = sock->err;
- sock->err = 0;
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_ERROR) = %d\n",
- s, *(int *)optval));
- break;
-
-#if LWIP_SO_RCVTIMEO
- case SO_RCVTIMEO:
- *(int *)optval = netconn_get_recvtimeout(sock->conn);
- break;
-#endif /* LWIP_SO_RCVTIMEO */
-#if LWIP_SO_RCVBUF
- case SO_RCVBUF:
- *(int *)optval = netconn_get_recvbufsize(sock->conn);
- break;
-#endif /* LWIP_SO_RCVBUF */
-#if LWIP_UDP
- case SO_NO_CHECK:
- *(int*)optval = (udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_NOCHKSUM) ? 1 : 0;
- break;
-#endif /* LWIP_UDP*/
- default:
- LWIP_ASSERT("unhandled optname", 0);
- break;
- } /* switch (optname) */
- break;
-
-/* Level: IPPROTO_IP */
- case IPPROTO_IP:
- switch (optname) {
- case IP_TTL:
- *(int*)optval = sock->conn->pcb.ip->ttl;
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TTL) = %d\n",
- s, *(int *)optval));
- break;
- case IP_TOS:
- *(int*)optval = sock->conn->pcb.ip->tos;
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TOS) = %d\n",
- s, *(int *)optval));
- break;
-#if LWIP_IGMP
- case IP_MULTICAST_TTL:
- *(u8_t*)optval = sock->conn->pcb.ip->ttl;
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_TTL) = %d\n",
- s, *(int *)optval));
- break;
- case IP_MULTICAST_IF:
- inet_addr_from_ipaddr((struct in_addr*)optval, &sock->conn->pcb.udp->multicast_ip);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_IF) = 0x%"X32_F"\n",
- s, *(u32_t *)optval));
- break;
- case IP_MULTICAST_LOOP:
- if ((sock->conn->pcb.udp->flags & UDP_FLAGS_MULTICAST_LOOP) != 0) {
- *(u8_t*)optval = 1;
- } else {
- *(u8_t*)optval = 0;
- }
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_LOOP) = %d\n",
- s, *(int *)optval));
- break;
-#endif /* LWIP_IGMP */
- default:
- LWIP_ASSERT("unhandled optname", 0);
- break;
- } /* switch (optname) */
- break;
-
-#if LWIP_TCP
-/* Level: IPPROTO_TCP */
- case IPPROTO_TCP:
- switch (optname) {
- case TCP_NODELAY:
- *(int*)optval = tcp_nagle_disabled(sock->conn->pcb.tcp);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, TCP_NODELAY) = %s\n",
- s, (*(int*)optval)?"on":"off") );
- break;
- case TCP_KEEPALIVE:
- *(int*)optval = (int)sock->conn->pcb.tcp->keep_idle;
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPALIVE) = %d\n",
- s, *(int *)optval));
- break;
-
-#if LWIP_TCP_KEEPALIVE
- case TCP_KEEPIDLE:
- *(int*)optval = (int)(sock->conn->pcb.tcp->keep_idle/1000);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPIDLE) = %d\n",
- s, *(int *)optval));
- break;
- case TCP_KEEPINTVL:
- *(int*)optval = (int)(sock->conn->pcb.tcp->keep_intvl/1000);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPINTVL) = %d\n",
- s, *(int *)optval));
- break;
- case TCP_KEEPCNT:
- *(int*)optval = (int)sock->conn->pcb.tcp->keep_cnt;
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPCNT) = %d\n",
- s, *(int *)optval));
- break;
-#endif /* LWIP_TCP_KEEPALIVE */
- default:
- LWIP_ASSERT("unhandled optname", 0);
- break;
- } /* switch (optname) */
- break;
-#endif /* LWIP_TCP */
-#if LWIP_UDP && LWIP_UDPLITE
- /* Level: IPPROTO_UDPLITE */
- case IPPROTO_UDPLITE:
- switch (optname) {
- case UDPLITE_SEND_CSCOV:
- *(int*)optval = sock->conn->pcb.udp->chksum_len_tx;
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) = %d\n",
- s, (*(int*)optval)) );
- break;
- case UDPLITE_RECV_CSCOV:
- *(int*)optval = sock->conn->pcb.udp->chksum_len_rx;
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) = %d\n",
- s, (*(int*)optval)) );
- break;
- default:
- LWIP_ASSERT("unhandled optname", 0);
- break;
- } /* switch (optname) */
- break;
-#endif /* LWIP_UDP */
- default:
- LWIP_ASSERT("unhandled level", 0);
- break;
- } /* switch (level) */
- sys_sem_signal(&sock->conn->op_completed);
-}
-
-int
-lwip_setsockopt(int s, int level, int optname, const void *optval, socklen_t optlen)
-{
- struct lwip_sock *sock = get_socket(s);
- err_t err = ERR_OK;
- struct lwip_setgetsockopt_data data;
-
- if (!sock) {
- return -1;
- }
-
- if (NULL == optval) {
- sock_set_errno(sock, EFAULT);
- return -1;
- }
-
- /* Do length and type checks for the various options first, to keep it readable. */
- switch (level) {
-
-/* Level: SOL_SOCKET */
- case SOL_SOCKET:
- switch (optname) {
-
- case SO_BROADCAST:
- /* UNIMPL case SO_DEBUG: */
- /* UNIMPL case SO_DONTROUTE: */
- case SO_KEEPALIVE:
- /* UNIMPL case case SO_CONTIMEO: */
- /* UNIMPL case case SO_SNDTIMEO: */
-#if LWIP_SO_RCVTIMEO
- case SO_RCVTIMEO:
-#endif /* LWIP_SO_RCVTIMEO */
-#if LWIP_SO_RCVBUF
- case SO_RCVBUF:
-#endif /* LWIP_SO_RCVBUF */
- /* UNIMPL case SO_OOBINLINE: */
- /* UNIMPL case SO_SNDBUF: */
- /* UNIMPL case SO_RCVLOWAT: */
- /* UNIMPL case SO_SNDLOWAT: */
-#if SO_REUSE
- case SO_REUSEADDR:
- case SO_REUSEPORT:
-#endif /* SO_REUSE */
- /* UNIMPL case SO_USELOOPBACK: */
- if (optlen < sizeof(int)) {
- err = EINVAL;
- }
- break;
- case SO_NO_CHECK:
- if (optlen < sizeof(int)) {
- err = EINVAL;
- }
-#if LWIP_UDP
- if ((sock->conn->type != NETCONN_UDP) ||
- ((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) {
- /* this flag is only available for UDP, not for UDP lite */
- err = EAFNOSUPPORT;
- }
-#endif /* LWIP_UDP */
- break;
- default:
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n",
- s, optname));
- err = ENOPROTOOPT;
- } /* switch (optname) */
- break;
-
-/* Level: IPPROTO_IP */
- case IPPROTO_IP:
- switch (optname) {
- /* UNIMPL case IP_HDRINCL: */
- /* UNIMPL case IP_RCVDSTADDR: */
- /* UNIMPL case IP_RCVIF: */
- case IP_TTL:
- case IP_TOS:
- if (optlen < sizeof(int)) {
- err = EINVAL;
- }
- break;
-#if LWIP_IGMP
- case IP_MULTICAST_TTL:
- if (optlen < sizeof(u8_t)) {
- err = EINVAL;
- }
- if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
- err = EAFNOSUPPORT;
- }
- break;
- case IP_MULTICAST_IF:
- if (optlen < sizeof(struct in_addr)) {
- err = EINVAL;
- }
- if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
- err = EAFNOSUPPORT;
- }
- break;
- case IP_MULTICAST_LOOP:
- if (optlen < sizeof(u8_t)) {
- err = EINVAL;
- }
- if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
- err = EAFNOSUPPORT;
- }
- break;
- case IP_ADD_MEMBERSHIP:
- case IP_DROP_MEMBERSHIP:
- if (optlen < sizeof(struct ip_mreq)) {
- err = EINVAL;
- }
- if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
- err = EAFNOSUPPORT;
- }
- break;
-#endif /* LWIP_IGMP */
- default:
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n",
- s, optname));
- err = ENOPROTOOPT;
- } /* switch (optname) */
- break;
-
-#if LWIP_TCP
-/* Level: IPPROTO_TCP */
- case IPPROTO_TCP:
- if (optlen < sizeof(int)) {
- err = EINVAL;
- break;
- }
-
- /* If this is no TCP socket, ignore any options. */
- if (sock->conn->type != NETCONN_TCP)
- return 0;
-
- switch (optname) {
- case TCP_NODELAY:
- case TCP_KEEPALIVE:
-#if LWIP_TCP_KEEPALIVE
- case TCP_KEEPIDLE:
- case TCP_KEEPINTVL:
- case TCP_KEEPCNT:
-#endif /* LWIP_TCP_KEEPALIVE */
- break;
-
- default:
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
- s, optname));
- err = ENOPROTOOPT;
- } /* switch (optname) */
- break;
-#endif /* LWIP_TCP */
-#if LWIP_UDP && LWIP_UDPLITE
-/* Level: IPPROTO_UDPLITE */
- case IPPROTO_UDPLITE:
- if (optlen < sizeof(int)) {
- err = EINVAL;
- break;
- }
-
- /* If this is no UDP lite socket, ignore any options. */
- if (sock->conn->type != NETCONN_UDPLITE)
- return 0;
-
- switch (optname) {
- case UDPLITE_SEND_CSCOV:
- case UDPLITE_RECV_CSCOV:
- break;
-
- default:
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n",
- s, optname));
- err = ENOPROTOOPT;
- } /* switch (optname) */
- break;
-#endif /* LWIP_UDP && LWIP_UDPLITE */
-/* UNDEFINED LEVEL */
- default:
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n",
- s, level, optname));
- err = ENOPROTOOPT;
- } /* switch (level) */
-
-
- if (err != ERR_OK) {
- sock_set_errno(sock, err);
- return -1;
- }
-
-
- /* Now do the actual option processing */
- data.sock = sock;
-#ifdef LWIP_DEBUG
- data.s = s;
-#endif /* LWIP_DEBUG */
- data.level = level;
- data.optname = optname;
- data.optval = (void*)optval;
- data.optlen = &optlen;
- data.err = err;
- tcpip_callback(lwip_setsockopt_internal, &data);
- sys_arch_sem_wait(&sock->conn->op_completed, 0);
- /* maybe lwip_setsockopt_internal has changed err */
- err = data.err;
-
- sock_set_errno(sock, err);
- return err ? -1 : 0;
-}
-
-static void
-lwip_setsockopt_internal(void *arg)
-{
- struct lwip_sock *sock;
-#ifdef LWIP_DEBUG
- int s;
-#endif /* LWIP_DEBUG */
- int level, optname;
- const void *optval;
- struct lwip_setgetsockopt_data *data;
-
- LWIP_ASSERT("arg != NULL", arg != NULL);
-
- data = (struct lwip_setgetsockopt_data*)arg;
- sock = data->sock;
-#ifdef LWIP_DEBUG
- s = data->s;
-#endif /* LWIP_DEBUG */
- level = data->level;
- optname = data->optname;
- optval = data->optval;
-
- switch (level) {
-
-/* Level: SOL_SOCKET */
- case SOL_SOCKET:
- switch (optname) {
-
- /* The option flags */
- case SO_BROADCAST:
- /* UNIMPL case SO_DEBUG: */
- /* UNIMPL case SO_DONTROUTE: */
- case SO_KEEPALIVE:
- /* UNIMPL case SO_OOBINCLUDE: */
-#if SO_REUSE
- case SO_REUSEADDR:
- case SO_REUSEPORT:
-#endif /* SO_REUSE */
- /* UNIMPL case SO_USELOOPBACK: */
- if (*(int*)optval) {
- sock->conn->pcb.ip->so_options |= optname;
- } else {
- sock->conn->pcb.ip->so_options &= ~optname;
- }
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, optname=0x%x, ..) -> %s\n",
- s, optname, (*(int*)optval?"on":"off")));
- break;
-#if LWIP_SO_RCVTIMEO
- case SO_RCVTIMEO:
- netconn_set_recvtimeout(sock->conn, *(int*)optval);
- break;
-#endif /* LWIP_SO_RCVTIMEO */
-#if LWIP_SO_RCVBUF
- case SO_RCVBUF:
- netconn_set_recvbufsize(sock->conn, *(int*)optval);
- break;
-#endif /* LWIP_SO_RCVBUF */
-#if LWIP_UDP
- case SO_NO_CHECK:
- if (*(int*)optval) {
- udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_NOCHKSUM);
- } else {
- udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_NOCHKSUM);
- }
- break;
-#endif /* LWIP_UDP */
- default:
- LWIP_ASSERT("unhandled optname", 0);
- break;
- } /* switch (optname) */
- break;
-
-/* Level: IPPROTO_IP */
- case IPPROTO_IP:
- switch (optname) {
- case IP_TTL:
- sock->conn->pcb.ip->ttl = (u8_t)(*(int*)optval);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TTL, ..) -> %d\n",
- s, sock->conn->pcb.ip->ttl));
- break;
- case IP_TOS:
- sock->conn->pcb.ip->tos = (u8_t)(*(int*)optval);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TOS, ..)-> %d\n",
- s, sock->conn->pcb.ip->tos));
- break;
-#if LWIP_IGMP
- case IP_MULTICAST_TTL:
- sock->conn->pcb.udp->ttl = (u8_t)(*(u8_t*)optval);
- break;
- case IP_MULTICAST_IF:
- inet_addr_to_ipaddr(&sock->conn->pcb.udp->multicast_ip, (struct in_addr*)optval);
- break;
- case IP_MULTICAST_LOOP:
- if (*(u8_t*)optval) {
- udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_MULTICAST_LOOP);
- } else {
- udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_MULTICAST_LOOP);
- }
- break;
- case IP_ADD_MEMBERSHIP:
- case IP_DROP_MEMBERSHIP:
- {
- /* If this is a TCP or a RAW socket, ignore these options. */
- struct ip_mreq *imr = (struct ip_mreq *)optval;
- ip_addr_t if_addr;
- ip_addr_t multi_addr;
- inet_addr_to_ipaddr(&if_addr, &imr->imr_interface);
- inet_addr_to_ipaddr(&multi_addr, &imr->imr_multiaddr);
- if(optname == IP_ADD_MEMBERSHIP){
- data->err = igmp_joingroup(&if_addr, &multi_addr);
- } else {
- data->err = igmp_leavegroup(&if_addr, &multi_addr);
- }
- if(data->err != ERR_OK) {
- data->err = EADDRNOTAVAIL;
- }
- }
- break;
-#endif /* LWIP_IGMP */
- default:
- LWIP_ASSERT("unhandled optname", 0);
- break;
- } /* switch (optname) */
- break;
-
-#if LWIP_TCP
-/* Level: IPPROTO_TCP */
- case IPPROTO_TCP:
- switch (optname) {
- case TCP_NODELAY:
- if (*(int*)optval) {
- tcp_nagle_disable(sock->conn->pcb.tcp);
- } else {
- tcp_nagle_enable(sock->conn->pcb.tcp);
- }
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_NODELAY) -> %s\n",
- s, (*(int *)optval)?"on":"off") );
- break;
- case TCP_KEEPALIVE:
- sock->conn->pcb.tcp->keep_idle = (u32_t)(*(int*)optval);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPALIVE) -> %"U32_F"\n",
- s, sock->conn->pcb.tcp->keep_idle));
- break;
-
-#if LWIP_TCP_KEEPALIVE
- case TCP_KEEPIDLE:
- sock->conn->pcb.tcp->keep_idle = 1000*(u32_t)(*(int*)optval);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPIDLE) -> %"U32_F"\n",
- s, sock->conn->pcb.tcp->keep_idle));
- break;
- case TCP_KEEPINTVL:
- sock->conn->pcb.tcp->keep_intvl = 1000*(u32_t)(*(int*)optval);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPINTVL) -> %"U32_F"\n",
- s, sock->conn->pcb.tcp->keep_intvl));
- break;
- case TCP_KEEPCNT:
- sock->conn->pcb.tcp->keep_cnt = (u32_t)(*(int*)optval);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPCNT) -> %"U32_F"\n",
- s, sock->conn->pcb.tcp->keep_cnt));
- break;
-#endif /* LWIP_TCP_KEEPALIVE */
- default:
- LWIP_ASSERT("unhandled optname", 0);
- break;
- } /* switch (optname) */
- break;
-#endif /* LWIP_TCP*/
-#if LWIP_UDP && LWIP_UDPLITE
- /* Level: IPPROTO_UDPLITE */
- case IPPROTO_UDPLITE:
- switch (optname) {
- case UDPLITE_SEND_CSCOV:
- if ((*(int*)optval != 0) && ((*(int*)optval < 8)) || (*(int*)optval > 0xffff)) {
- /* don't allow illegal values! */
- sock->conn->pcb.udp->chksum_len_tx = 8;
- } else {
- sock->conn->pcb.udp->chksum_len_tx = (u16_t)*(int*)optval;
- }
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) -> %d\n",
- s, (*(int*)optval)) );
- break;
- case UDPLITE_RECV_CSCOV:
- if ((*(int*)optval != 0) && ((*(int*)optval < 8)) || (*(int*)optval > 0xffff)) {
- /* don't allow illegal values! */
- sock->conn->pcb.udp->chksum_len_rx = 8;
- } else {
- sock->conn->pcb.udp->chksum_len_rx = (u16_t)*(int*)optval;
- }
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) -> %d\n",
- s, (*(int*)optval)) );
- break;
- default:
- LWIP_ASSERT("unhandled optname", 0);
- break;
- } /* switch (optname) */
- break;
-#endif /* LWIP_UDP */
- default:
- LWIP_ASSERT("unhandled level", 0);
- break;
- } /* switch (level) */
- sys_sem_signal(&sock->conn->op_completed);
-}
-
-int
-lwip_ioctl(int s, long cmd, void *argp)
-{
- struct lwip_sock *sock = get_socket(s);
- u8_t val;
-#if LWIP_SO_RCVBUF
- u16_t buflen = 0;
- s16_t recv_avail;
-#endif /* LWIP_SO_RCVBUF */
-
- if (!sock) {
- return -1;
- }
-
- switch (cmd) {
-#if LWIP_SO_RCVBUF
- case FIONREAD:
- if (!argp) {
- sock_set_errno(sock, EINVAL);
- return -1;
- }
-
- SYS_ARCH_GET(sock->conn->recv_avail, recv_avail);
- if (recv_avail < 0) {
- recv_avail = 0;
- }
- *((u16_t*)argp) = (u16_t)recv_avail;
-
- /* Check if there is data left from the last recv operation. /maq 041215 */
- if (sock->lastdata) {
- struct pbuf *p = (struct pbuf *)sock->lastdata;
- if (netconn_type(sock->conn) != NETCONN_TCP) {
- p = ((struct netbuf *)p)->p;
- }
- buflen = p->tot_len;
- buflen -= sock->lastoffset;
-
- *((u16_t*)argp) += buflen;
- }
-
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONREAD, %p) = %"U16_F"\n", s, argp, *((u16_t*)argp)));
- sock_set_errno(sock, 0);
- return 0;
-#endif /* LWIP_SO_RCVBUF */
-
- case FIONBIO:
- val = 0;
- if (argp && *(u32_t*)argp) {
- val = 1;
- }
- netconn_set_nonblocking(sock->conn, val);
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONBIO, %d)\n", s, val));
- sock_set_errno(sock, 0);
- return 0;
-
- default:
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, UNIMPL: 0x%lx, %p)\n", s, cmd, argp));
- sock_set_errno(sock, ENOSYS); /* not yet implemented */
- return -1;
- } /* switch (cmd) */
-}
-
-/** A minimal implementation of fcntl.
- * Currently only the commands F_GETFL and F_SETFL are implemented.
- * Only the flag O_NONBLOCK is implemented.
- */
-int
-lwip_fcntl(int s, int cmd, int val)
-{
- struct lwip_sock *sock = get_socket(s);
- int ret = -1;
-
- if (!sock || !sock->conn) {
- return -1;
- }
-
- switch (cmd) {
- case F_GETFL:
- ret = netconn_is_nonblocking(sock->conn) ? O_NONBLOCK : 0;
- break;
- case F_SETFL:
- if ((val & ~O_NONBLOCK) == 0) {
- /* only O_NONBLOCK, all other bits are zero */
- netconn_set_nonblocking(sock->conn, val & O_NONBLOCK);
- ret = 0;
- }
- break;
- default:
- LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_fcntl(%d, UNIMPL: %d, %d)\n", s, cmd, val));
- break;
- }
- return ret;
-}
-
-#endif /* LWIP_SOCKET */