1*433d6423SLionel Sambuc /* 2*433d6423SLionel Sambuc server/ip/gen/tcp_hdr.h 3*433d6423SLionel Sambuc */ 4*433d6423SLionel Sambuc 5*433d6423SLionel Sambuc #ifndef __SERVER__IP__GEN__TCP_HDR_H__ 6*433d6423SLionel Sambuc #define __SERVER__IP__GEN__TCP_HDR_H__ 7*433d6423SLionel Sambuc 8*433d6423SLionel Sambuc typedef struct tcp_hdr 9*433d6423SLionel Sambuc { 10*433d6423SLionel Sambuc tcpport_t th_srcport; 11*433d6423SLionel Sambuc tcpport_t th_dstport; 12*433d6423SLionel Sambuc u32_t th_seq_nr; 13*433d6423SLionel Sambuc u32_t th_ack_nr; 14*433d6423SLionel Sambuc u8_t th_data_off; 15*433d6423SLionel Sambuc u8_t th_flags; 16*433d6423SLionel Sambuc u16_t th_window; 17*433d6423SLionel Sambuc u16_t th_chksum; 18*433d6423SLionel Sambuc u16_t th_urgptr; 19*433d6423SLionel Sambuc } tcp_hdr_t; 20*433d6423SLionel Sambuc 21*433d6423SLionel Sambuc #define TH_DO_MASK 0xf0 22*433d6423SLionel Sambuc 23*433d6423SLionel Sambuc #define TH_FLAGS_MASK 0x3f 24*433d6423SLionel Sambuc #define THF_FIN 0x1 25*433d6423SLionel Sambuc #define THF_SYN 0x2 26*433d6423SLionel Sambuc #define THF_RST 0x4 27*433d6423SLionel Sambuc #define THF_PSH 0x8 28*433d6423SLionel Sambuc #define THF_ACK 0x10 29*433d6423SLionel Sambuc #define THF_URG 0x20 30*433d6423SLionel Sambuc 31*433d6423SLionel Sambuc typedef struct tcp_hdropt 32*433d6423SLionel Sambuc { 33*433d6423SLionel Sambuc int tho_opt_siz; 34*433d6423SLionel Sambuc u8_t tho_data[TCP_MAX_HDR_SIZE-TCP_MIN_HDR_SIZE]; 35*433d6423SLionel Sambuc } tcp_hdropt_t; 36*433d6423SLionel Sambuc 37*433d6423SLionel Sambuc #define TCP_OPT_EOL 0 38*433d6423SLionel Sambuc #define TCP_OPT_NOP 1 39*433d6423SLionel Sambuc #define TCP_OPT_MSS 2 40*433d6423SLionel Sambuc #define TCP_OPT_WSOPT 3 /* RFC-1323, window scale option */ 41*433d6423SLionel Sambuc #define TCP_OPT_SACKOK 4 /* RFC-2018, SACK permitted */ 42*433d6423SLionel Sambuc #define TCP_OPT_TS 8 /* RFC-1323, Timestamps option */ 43*433d6423SLionel Sambuc #define TCP_OPT_CCNEW 12 /* RFC-1644, new connection count */ 44*433d6423SLionel Sambuc 45*433d6423SLionel Sambuc #endif /* __SERVER__IP__GEN__TCP_HDR_H__ */ 46*433d6423SLionel Sambuc 47*433d6423SLionel Sambuc /* 48*433d6423SLionel Sambuc * $PchId: tcp_hdr.h,v 1.4 2002/06/10 07:12:22 philip Exp $ 49*433d6423SLionel Sambuc */ 50