Daniele Lacamera / PicoTCP-Experimental_CDC_ECM_Branch

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Fork of PicoTCP by Daniele Lacamera

include/pico_frame.h@1:cfe8984a32b4, 2013-05-17 (annotated)

Committer:
tass
Date:
Fri May 17 12:09:59 2013 +0000
Revision:
1:cfe8984a32b4
Parent:
libraries/picotcp/include/pico_frame.h@0:d7f2341ab245 
Update for smaller SOCKETQ

Who changed what in which revision?

UserRevisionLine numberNew contents of line
daniele 0:d7f2341ab245 1 /*********************************************************************
daniele 0:d7f2341ab245 2 PicoTCP. Copyright (c) 2012 TASS Belgium NV. Some rights reserved.
daniele 0:d7f2341ab245 3 See LICENSE and COPYING for usage.
daniele 0:d7f2341ab245 4
daniele 0:d7f2341ab245 5 *********************************************************************/
daniele 0:d7f2341ab245 6 #ifndef _INCLUDE_PICO_FRAME
daniele 0:d7f2341ab245 7 #define _INCLUDE_PICO_FRAME
daniele 0:d7f2341ab245 8 #include "pico_config.h"
daniele 0:d7f2341ab245 9
daniele 0:d7f2341ab245 10
daniele 0:d7f2341ab245 11 #define PICO_FRAME_FLAG_BCAST (0x01)
daniele 0:d7f2341ab245 12 #define PICO_FRAME_FLAG_SACKED (0x80)
daniele 0:d7f2341ab245 13 #define IS_BCAST(f) ((f->flags & PICO_FRAME_FLAG_BCAST) == PICO_FRAME_FLAG_BCAST)
daniele 0:d7f2341ab245 14
daniele 0:d7f2341ab245 15
daniele 0:d7f2341ab245 16 struct pico_socket;
daniele 0:d7f2341ab245 17
daniele 0:d7f2341ab245 18
daniele 0:d7f2341ab245 19 struct pico_frame {
daniele 0:d7f2341ab245 20
daniele 0:d7f2341ab245 21 /* Connector for queues */
daniele 0:d7f2341ab245 22 struct pico_frame *next;
daniele 0:d7f2341ab245 23
daniele 0:d7f2341ab245 24 /* Start of the whole buffer, total frame length. */
daniele 0:d7f2341ab245 25 unsigned char *buffer;
daniele 0:d7f2341ab245 26 uint32_t buffer_len;
daniele 0:d7f2341ab245 27
daniele 0:d7f2341ab245 28 /* For outgoing packets: this is the meaningful buffer. */
daniele 0:d7f2341ab245 29 unsigned char *start;
daniele 0:d7f2341ab245 30 uint32_t len;
daniele 0:d7f2341ab245 31
daniele 0:d7f2341ab245 32 /* Pointer to usage counter */
daniele 0:d7f2341ab245 33 uint32_t *usage_count;
daniele 0:d7f2341ab245 34
daniele 0:d7f2341ab245 35 /* Pointer to protocol headers */
daniele 0:d7f2341ab245 36 uint8_t *datalink_hdr;
daniele 0:d7f2341ab245 37
daniele 0:d7f2341ab245 38 uint8_t *net_hdr;
daniele 0:d7f2341ab245 39 int net_len;
daniele 0:d7f2341ab245 40 uint8_t *transport_hdr;
daniele 0:d7f2341ab245 41 int transport_len;
daniele 0:d7f2341ab245 42 uint8_t *app_hdr;
daniele 0:d7f2341ab245 43 int app_len;
daniele 0:d7f2341ab245 44
daniele 0:d7f2341ab245 45 /* Pointer to the phisical device this packet belongs to.
daniele 0:d7f2341ab245 46 * Should be valid in both routing directions
daniele 0:d7f2341ab245 47 */
daniele 0:d7f2341ab245 48 struct pico_device *dev;
daniele 0:d7f2341ab245 49
daniele 0:d7f2341ab245 50 unsigned long timestamp;
daniele 0:d7f2341ab245 51
daniele 0:d7f2341ab245 52 /* Failures due to bad datalink addressing. */
daniele 0:d7f2341ab245 53 uint16_t failure_count;
daniele 0:d7f2341ab245 54
daniele 0:d7f2341ab245 55 /* Protocol over IP */
daniele 0:d7f2341ab245 56 uint8_t proto;
daniele 0:d7f2341ab245 57
daniele 0:d7f2341ab245 58 /* PICO_FRAME_FLAG_* */
daniele 0:d7f2341ab245 59 uint8_t flags;
daniele 0:d7f2341ab245 60
daniele 0:d7f2341ab245 61 /* Pointer to payload */
daniele 0:d7f2341ab245 62 unsigned char *payload;
daniele 0:d7f2341ab245 63 int payload_len;
daniele 0:d7f2341ab245 64
daniele 0:d7f2341ab245 65 #ifdef PICO_SUPPORT_IPFRAG
daniele 0:d7f2341ab245 66 /* Payload fragmentation info (big endian)*/
daniele 0:d7f2341ab245 67 uint16_t frag;
daniele 0:d7f2341ab245 68 #endif
daniele 0:d7f2341ab245 69
daniele 0:d7f2341ab245 70 /* Pointer to socket */
daniele 0:d7f2341ab245 71 struct pico_socket *sock;
daniele 0:d7f2341ab245 72
daniele 0:d7f2341ab245 73 /* Pointer to transport info, used to store remote UDP duple (IP + port) */
daniele 0:d7f2341ab245 74 void *info;
daniele 0:d7f2341ab245 75
daniele 0:d7f2341ab245 76 /*Priority. "best-effort" priority, the default value is 0. Priority can be in between -10 and +10*/
daniele 0:d7f2341ab245 77 int8_t priority;
daniele 0:d7f2341ab245 78 };
daniele 0:d7f2341ab245 79
daniele 0:d7f2341ab245 80 /** frame alloc/dealloc/copy **/
daniele 0:d7f2341ab245 81 void pico_frame_discard(struct pico_frame *f);
daniele 0:d7f2341ab245 82 struct pico_frame *pico_frame_copy(struct pico_frame *f);
daniele 0:d7f2341ab245 83 struct pico_frame *pico_frame_deepcopy(struct pico_frame *f);
daniele 0:d7f2341ab245 84 struct pico_frame *pico_frame_alloc(int size);
daniele 0:d7f2341ab245 85 uint16_t pico_checksum(void *inbuf, int len);
daniele 0:d7f2341ab245 86 uint16_t pico_dualbuffer_checksum(void *b1, int len1, void *b2, int len2);
daniele 0:d7f2341ab245 87
daniele 0:d7f2341ab245 88 static inline int pico_is_digit(char c)
daniele 0:d7f2341ab245 89 {
daniele 0:d7f2341ab245 90 if (c < '0' || c > '9')
daniele 0:d7f2341ab245 91 return 0;
daniele 0:d7f2341ab245 92 return 1;
daniele 0:d7f2341ab245 93 }
daniele 0:d7f2341ab245 94
daniele 0:d7f2341ab245 95 #endif