1 /* 2 server/ip/gen/ip_hdr.h 3 */ 4 5 #ifndef __SERVER__IP__GEN__HDR_H__ 6 #define __SERVER__IP__GEN__HDR_H__ 7 8 typedef struct ip_hdr 9 { 10 u8_t ih_vers_ihl, 11 ih_tos; 12 u16_t ih_length, 13 ih_id, 14 ih_flags_fragoff; 15 u8_t ih_ttl, 16 ih_proto; 17 u16_t ih_hdr_chk; 18 ipaddr_t ih_src, 19 ih_dst; 20 } ip_hdr_t; 21 22 #define IH_IHL_MASK 0xf 23 #define IH_VERSION_MASK 0xf 24 #define IH_FRAGOFF_MASK 0x1fff 25 #define IH_MORE_FRAGS 0x2000 26 #define IH_DONT_FRAG 0x4000 27 #define IH_FLAGS_UNUSED 0x8000 28 29 #define IP_OPT_COPIED 0x80 30 #define IP_OPT_NUMBER 0x1f 31 32 #define IP_OPT_EOL 0x00 /* End of Options List, RFC-791 */ 33 #define IP_OPT_NOP 0x01 /* No Operation, RFC-791 */ 34 #define IP_OPT_RR 0x07 /* Record Route, RFC-791 */ 35 #define IP_OPT_TS 0x44 /* Timestamp, RFC-791 */ 36 #define IP_OPT_SEC 0x82 /* Security, RFC-1108 */ 37 #define IP_OPT_LSRR 0x83 /* Loose Source Route, RFC-791 */ 38 #define IP_OPT_SSRR 0x89 /* Strict Source Route, RFC-791 */ 39 #define IP_OPT_RTRALT 0x94 /* Router Alert, RFC-2113 */ 40 41 #define IP_OPT_RR_MIN 4 42 43 #endif /* __SERVER__IP__GEN__HDR_H__ */ 44 45 /* 46 * $PchId: ip_hdr.h,v 1.5 2002/06/10 07:11:46 philip Exp $ 47 */ 48