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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [lwIP_MCF5235_GCC/] [lwip/] [src/] [netif/] [ppp/] [vjbsdhdr.h] - Blame information for rev 583

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#ifndef VJBSDHDR_H
#define VJBSDHDR_H
 
#include "lwip/tcp.h"
 
 
/*
 * Structure of an internet header, naked of options.
 *
 * We declare ip_len and ip_off to be short, rather than u_short
 * pragmatically since otherwise unsigned comparisons can result
 * against negative integers quite easily, and fail in subtle ways.
 */
PACK_STRUCT_BEGIN
struct ip
{
#if defined(NO_CHAR_BITFIELDS)
        u_char ip_hl_v; /* bug in GCC for mips means the bitfield stuff will sometimes break - so we use a char for both and get round it with macro's instead... */
#else
#if BYTE_ORDER == LITTLE_ENDIAN
        unsigned ip_hl:4,                               /* header length */
                ip_v:4;                                         /* version */
#elif BYTE_ORDER == BIG_ENDIAN 
        unsigned ip_v:4,                                        /* version */
                ip_hl:4;                                        /* header length */
#else
        COMPLAIN - NO BYTE ORDER SELECTED!
#endif
#endif
        u_char  ip_tos;                                 /* type of service */
        u_short ip_len;                                 /* total length */
        u_short ip_id;                                  /* identification */
        u_short ip_off;                                 /* fragment offset field */
#define IP_DF 0x4000                            /* dont fragment flag */
#define IP_MF 0x2000                            /* more fragments flag */
#define IP_OFFMASK 0x1fff                       /* mask for fragmenting bits */
        u_char  ip_ttl;                                 /* time to live */
        u_char  ip_p;                                   /* protocol */
        u_short ip_sum;                                 /* checksum */
        struct  in_addr ip_src,ip_dst;  /* source and dest address */
};
PACK_STRUCT_END
 
typedef u32_t tcp_seq;
 
/*
 * TCP header.
 * Per RFC 793, September, 1981.
 */
PACK_STRUCT_BEGIN
struct tcphdr
{
        u_short th_sport;               /* source port */
        u_short th_dport;               /* destination port */
        tcp_seq th_seq;                 /* sequence number */
        tcp_seq th_ack;                 /* acknowledgement number */
#if defined(NO_CHAR_BITFIELDS)
        u_char th_x2_off;
#else
#if BYTE_ORDER == LITTLE_ENDIAN
        unsigned        th_x2:4,                /* (unused) */
                        th_off:4;               /* data offset */
#endif
#if BYTE_ORDER == BIG_ENDIAN 
        unsigned        th_off:4,               /* data offset */
                        th_x2:4;                /* (unused) */
#endif
#endif
        u_char  th_flags;
        u_short th_win;                 /* window */
        u_short th_sum;                 /* checksum */
        u_short th_urp;                 /* urgent pointer */
};
PACK_STRUCT_END
 
#endif /* VJBSDHDR_H */

Line No.	Rev	Author	Line
1	583	jeremybenn	`#ifndef VJBSDHDR_H`
2			`#define VJBSDHDR_H`
3
4			`#include "lwip/tcp.h"`
5
6
7			`/*`
8			`* Structure of an internet header, naked of options.`
9			`*`
10			`* We declare ip_len and ip_off to be short, rather than u_short`
11			`* pragmatically since otherwise unsigned comparisons can result`
12			`* against negative integers quite easily, and fail in subtle ways.`
13			`*/`
14			`PACK_STRUCT_BEGIN`
15			`struct ip`
16			`{`
17			`#if defined(NO_CHAR_BITFIELDS)`
18			`u_char ip_hl_v; /* bug in GCC for mips means the bitfield stuff will sometimes break - so we use a char for both and get round it with macro's instead... */`
19			`#else`
20			`#if BYTE_ORDER == LITTLE_ENDIAN`
21			`unsigned ip_hl:4, /* header length */`
22			`ip_v:4; /* version */`
23			`#elif BYTE_ORDER == BIG_ENDIAN`
24			`unsigned ip_v:4, /* version */`
25			`ip_hl:4; /* header length */`
26			`#else`
27			`COMPLAIN - NO BYTE ORDER SELECTED!`
28			`#endif`
29			`#endif`
30			`u_char ip_tos; /* type of service */`
31			`u_short ip_len; /* total length */`
32			`u_short ip_id; /* identification */`
33			`u_short ip_off; /* fragment offset field */`
34			`#define IP_DF 0x4000 /* dont fragment flag */`
35			`#define IP_MF 0x2000 /* more fragments flag */`
36			`#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */`
37			`u_char ip_ttl; /* time to live */`
38			`u_char ip_p; /* protocol */`
39			`u_short ip_sum; /* checksum */`
40			`struct in_addr ip_src,ip_dst; /* source and dest address */`
41			`};`
42			`PACK_STRUCT_END`
43
44			`typedef u32_t tcp_seq;`
45
46			`/*`
47			`* TCP header.`
48			`* Per RFC 793, September, 1981.`
49			`*/`
50			`PACK_STRUCT_BEGIN`
51			`struct tcphdr`
52			`{`
53			`u_short th_sport; /* source port */`
54			`u_short th_dport; /* destination port */`
55			`tcp_seq th_seq; /* sequence number */`
56			`tcp_seq th_ack; /* acknowledgement number */`
57			`#if defined(NO_CHAR_BITFIELDS)`
58			`u_char th_x2_off;`
59			`#else`
60			`#if BYTE_ORDER == LITTLE_ENDIAN`
61			`unsigned th_x2:4, /* (unused) */`
62			`th_off:4; /* data offset */`
63			`#endif`
64			`#if BYTE_ORDER == BIG_ENDIAN`
65			`unsigned th_off:4, /* data offset */`
66			`th_x2:4; /* (unused) */`
67			`#endif`
68			`#endif`
69			`u_char th_flags;`
70			`u_short th_win; /* window */`
71			`u_short th_sum; /* checksum */`
72			`u_short th_urp; /* urgent pointer */`
73			`};`
74			`PACK_STRUCT_END`
75
76			`#endif /* VJBSDHDR_H */`

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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [lwIP_MCF5235_GCC/] [lwip/] [src/] [netif/] [ppp/] [vjbsdhdr.h] - Blame information for rev 583