Daniele Lacamera / PicoTCP-Experimental_CDC_ECM_Branch

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Fork of PicoTCP by Daniele Lacamera

include/pico_frame.h@29:1a47b7151851, 2013-06-16 (annotated)

Committer:
daniele
Date:
Sun Jun 16 20:19:44 2013 +0000
Revision:
29:1a47b7151851
Parent:
3:b4047e8a0123 
Updated from masterbranch;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
daniele 3:b4047e8a0123 1 /*********************************************************************
daniele 3:b4047e8a0123 2 PicoTCP. Copyright (c) 2012 TASS Belgium NV. Some rights reserved.
daniele 3:b4047e8a0123 3 See LICENSE and COPYING for usage.
daniele 3:b4047e8a0123 4
daniele 3:b4047e8a0123 5 *********************************************************************/
daniele 3:b4047e8a0123 6 #ifndef _INCLUDE_PICO_FRAME
daniele 3:b4047e8a0123 7 #define _INCLUDE_PICO_FRAME
daniele 3:b4047e8a0123 8 #include "pico_config.h"
daniele 3:b4047e8a0123 9
daniele 3:b4047e8a0123 10
daniele 3:b4047e8a0123 11 #define PICO_FRAME_FLAG_BCAST (0x01)
daniele 3:b4047e8a0123 12 #define PICO_FRAME_FLAG_SACKED (0x80)
daniele 3:b4047e8a0123 13 #define IS_BCAST(f) ((f->flags & PICO_FRAME_FLAG_BCAST) == PICO_FRAME_FLAG_BCAST)
daniele 3:b4047e8a0123 14
daniele 3:b4047e8a0123 15
daniele 3:b4047e8a0123 16 struct pico_socket;
daniele 3:b4047e8a0123 17
daniele 3:b4047e8a0123 18
daniele 3:b4047e8a0123 19 struct pico_frame {
daniele 3:b4047e8a0123 20
daniele 3:b4047e8a0123 21 /* Connector for queues */
daniele 3:b4047e8a0123 22 struct pico_frame *next;
daniele 3:b4047e8a0123 23
daniele 3:b4047e8a0123 24 /* Start of the whole buffer, total frame length. */
daniele 3:b4047e8a0123 25 unsigned char *buffer;
daniele 3:b4047e8a0123 26 uint32_t buffer_len;
daniele 3:b4047e8a0123 27
daniele 3:b4047e8a0123 28 /* For outgoing packets: this is the meaningful buffer. */
daniele 3:b4047e8a0123 29 unsigned char *start;
daniele 3:b4047e8a0123 30 uint32_t len;
daniele 3:b4047e8a0123 31
daniele 3:b4047e8a0123 32 /* Pointer to usage counter */
daniele 3:b4047e8a0123 33 uint32_t *usage_count;
daniele 3:b4047e8a0123 34
daniele 3:b4047e8a0123 35 /* Pointer to protocol headers */
daniele 3:b4047e8a0123 36 uint8_t *datalink_hdr;
daniele 3:b4047e8a0123 37
daniele 3:b4047e8a0123 38 uint8_t *net_hdr;
daniele 3:b4047e8a0123 39 int net_len;
daniele 3:b4047e8a0123 40 uint8_t *transport_hdr;
daniele 3:b4047e8a0123 41 int transport_len;
daniele 3:b4047e8a0123 42 uint8_t *app_hdr;
daniele 3:b4047e8a0123 43 int app_len;
daniele 3:b4047e8a0123 44
daniele 3:b4047e8a0123 45 /* Pointer to the phisical device this packet belongs to.
daniele 3:b4047e8a0123 46 * Should be valid in both routing directions
daniele 3:b4047e8a0123 47 */
daniele 3:b4047e8a0123 48 struct pico_device *dev;
daniele 3:b4047e8a0123 49
daniele 3:b4047e8a0123 50 unsigned long timestamp;
daniele 3:b4047e8a0123 51
daniele 3:b4047e8a0123 52 /* Failures due to bad datalink addressing. */
daniele 3:b4047e8a0123 53 uint16_t failure_count;
daniele 3:b4047e8a0123 54
daniele 3:b4047e8a0123 55 /* Protocol over IP */
daniele 3:b4047e8a0123 56 uint8_t proto;
daniele 3:b4047e8a0123 57
daniele 3:b4047e8a0123 58 /* PICO_FRAME_FLAG_* */
daniele 3:b4047e8a0123 59 uint8_t flags;
daniele 3:b4047e8a0123 60
daniele 3:b4047e8a0123 61 /* Pointer to payload */
daniele 3:b4047e8a0123 62 unsigned char *payload;
daniele 3:b4047e8a0123 63 int payload_len;
daniele 3:b4047e8a0123 64
daniele 3:b4047e8a0123 65 #ifdef PICO_SUPPORT_IPFRAG
daniele 3:b4047e8a0123 66 /* Payload fragmentation info (big endian)*/
daniele 3:b4047e8a0123 67 uint16_t frag;
daniele 3:b4047e8a0123 68 #endif
daniele 3:b4047e8a0123 69
daniele 3:b4047e8a0123 70 /* Pointer to socket */
daniele 3:b4047e8a0123 71 struct pico_socket *sock;
daniele 3:b4047e8a0123 72
daniele 3:b4047e8a0123 73 /* Pointer to transport info, used to store remote UDP duple (IP + port) */
daniele 3:b4047e8a0123 74 void *info;
daniele 3:b4047e8a0123 75
daniele 3:b4047e8a0123 76 /*Priority. "best-effort" priority, the default value is 0. Priority can be in between -10 and +10*/
daniele 3:b4047e8a0123 77 int8_t priority;
daniele 3:b4047e8a0123 78 };
daniele 3:b4047e8a0123 79
daniele 3:b4047e8a0123 80 /** frame alloc/dealloc/copy **/
daniele 3:b4047e8a0123 81 void pico_frame_discard(struct pico_frame *f);
daniele 3:b4047e8a0123 82 struct pico_frame *pico_frame_copy(struct pico_frame *f);
daniele 3:b4047e8a0123 83 struct pico_frame *pico_frame_deepcopy(struct pico_frame *f);
daniele 3:b4047e8a0123 84 struct pico_frame *pico_frame_alloc(int size);
daniele 3:b4047e8a0123 85 uint16_t pico_checksum(void *inbuf, int len);
daniele 3:b4047e8a0123 86 uint16_t pico_dualbuffer_checksum(void *b1, int len1, void *b2, int len2);
daniele 3:b4047e8a0123 87
daniele 3:b4047e8a0123 88 static inline int pico_is_digit(char c)
daniele 3:b4047e8a0123 89 {
daniele 3:b4047e8a0123 90 if (c < '0' || c > '9')
daniele 3:b4047e8a0123 91 return 0;
daniele 3:b4047e8a0123 92 return 1;
daniele 3:b4047e8a0123 93 }
daniele 3:b4047e8a0123 94
daniele 3:b4047e8a0123 95 #endif