-/* @(#) $Header: /tcpdump/master/tcpdump/tcp.h,v 1.2 2000-09-23 08:54:43 guy Exp $ (LBL) */
/*
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. All rights reserved.
* @(#)tcp.h 8.1 (Berkeley) 6/10/93
*/
-#ifndef BYTE_ORDER
-#define LITTLE_ENDIAN 1234 /* least-significant byte first (vax, pc) */
-#define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */
-#define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp)*/
-
-#ifdef WORDS_BIGENDIAN
-#define BYTE_ORDER BIG_ENDIAN
-#else
-#define BYTE_ORDER LITTLE_ENDIAN
-#endif /* WORDS_BIGENDIAN */
-#endif /* BYTE_ORDER */
-
-#if !defined(BYTE_ORDER) || \
- (BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN && \
- BYTE_ORDER != PDP_ENDIAN)
- /* you must determine what the correct bit order is for
- * your compiler - the next line is an intentional error
- * which will force your compiles to bomb until you fix
- * the above macros.
- */
- #error "Undefined or invalid BYTE_ORDER";
-#endif
-
-typedef u_int tcp_seq;
/*
* TCP header.
* Per RFC 793, September, 1981.
*/
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 BYTE_ORDER == LITTLE_ENDIAN
- u_char th_x2:4, /* (unused) */
- th_off:4; /* data offset */
-#endif
-#if BYTE_ORDER == BIG_ENDIAN
- u_char th_off:4, /* data offset */
- th_x2:4; /* (unused) */
-#endif
- u_char th_flags;
-#define TH_FIN 0x01
-#define TH_SYN 0x02
-#define TH_RST 0x04
-#define TH_PUSH 0x08
-#define TH_ACK 0x10
-#define TH_URG 0x20
- u_short th_win; /* window */
- u_short th_sum; /* checksum */
- u_short th_urp; /* urgent pointer */
+ nd_uint16_t th_sport; /* source port */
+ nd_uint16_t th_dport; /* destination port */
+ nd_uint32_t th_seq; /* sequence number */
+ nd_uint32_t th_ack; /* acknowledgement number */
+ nd_uint8_t th_offx2; /* data offset, rsvd */
+ nd_uint8_t th_flags;
+ nd_uint16_t th_win; /* window */
+ nd_uint16_t th_sum; /* checksum */
+ nd_uint16_t th_urp; /* urgent pointer */
};
+#define TH_OFF(th) ((GET_U_1((th)->th_offx2) & 0xf0) >> 4)
+#define tcp_get_flags(th) ((GET_U_1((th)->th_flags)) | \
+ ((GET_U_1((th)->th_offx2) & 0x0f) << 8))
+
+/* TCP flags */
+#define TH_FIN 0x01
+#define TH_SYN 0x02
+#define TH_RST 0x04
+#define TH_PUSH 0x08
+#define TH_ACK 0x10
+#define TH_URG 0x20
+#define TH_ECNECHO 0x40 /* ECN Echo */
+#define TH_CWR 0x80 /* ECN Cwnd Reduced */
+#define TH_AE 0x100 /* AccECN (draft-ietf-tcpm-accurate-ecn;rfc7560) part of L4S (rfc9330) */
+extern const struct tok tcp_flag_values[];
+
+
#define TCPOPT_EOL 0
#define TCPOPT_NOP 1
#define TCPOPT_MAXSEG 2
#define TCPOLEN_MAXSEG 4
-#define TCPOPT_WINDOW 3
-#define TCPOLEN_WINDOW 3
-#define TCPOPT_SACK_PERMITTED 4 /* Experimental */
-#define TCPOLEN_SACK_PERMITTED 2
-#define TCPOPT_SACK 5 /* Experimental */
-#define TCPOPT_TIMESTAMP 8
+#define TCPOPT_WSCALE 3 /* window scale factor (rfc1323) */
+#define TCPOPT_SACKOK 4 /* selective ack ok (rfc2018) */
+#define TCPOPT_SACK 5 /* selective ack (rfc2018) */
+#define TCPOPT_ECHO 6 /* echo (rfc1072) */
+#define TCPOPT_ECHOREPLY 7 /* echo (rfc1072) */
+#define TCPOPT_TIMESTAMP 8 /* timestamp (rfc1323) */
#define TCPOLEN_TIMESTAMP 10
#define TCPOLEN_TSTAMP_APPA (TCPOLEN_TIMESTAMP+2) /* appendix A */
+#define TCPOPT_CC 11 /* T/TCP CC options (rfc1644) */
+#define TCPOPT_CCNEW 12 /* T/TCP CC options (rfc1644) */
+#define TCPOPT_CCECHO 13 /* T/TCP CC options (rfc1644) */
+#define TCPOPT_SIGNATURE 19 /* Keyed MD5 (rfc2385) */
+#define TCPOLEN_SIGNATURE 18
+#define TCP_SIGLEN 16 /* length of an option 19 digest */
+#define TCPOPT_SCPS 20 /* SCPS-TP (CCSDS 714.0-B-2) */
+#define TCPOPT_UTO 28 /* tcp user timeout (rfc5482) */
+#define TCPOLEN_UTO 4
+#define TCPOPT_TCPAO 29 /* TCP authentication option (rfc5925) */
+#define TCPOPT_MPTCP 30 /* MPTCP options */
+#define TCPOPT_FASTOPEN 34 /* TCP Fast Open (rfc7413) */
+#define TCPOPT_EXPERIMENT2 254 /* experimental headers (rfc4727) */
#define TCPOPT_TSTAMP_HDR \
(TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_TIMESTAMP<<8|TCPOLEN_TIMESTAMP)
+
+#ifndef FTP_PORT
+#define FTP_PORT 21
+#endif
+#ifndef SSH_PORT
+#define SSH_PORT 22
+#endif
+#ifndef TELNET_PORT
+#define TELNET_PORT 23
+#endif
+#ifndef SMTP_PORT
+#define SMTP_PORT 25
+#endif
+#ifndef WHOIS_PORT
+#define WHOIS_PORT 43
+#endif
+#ifndef NAMESERVER_PORT
+#define NAMESERVER_PORT 53
+#endif
+#ifndef HTTP_PORT
+#define HTTP_PORT 80
+#endif
+#ifndef NETBIOS_SSN_PORT
+#define NETBIOS_SSN_PORT 139 /* RFC 1001, RFC 1002 */
+#endif
+#ifndef BGP_PORT
+#define BGP_PORT 179
+#endif
+#ifndef RPKI_RTR_PORT
+#define RPKI_RTR_PORT 323
+#endif
+#ifndef SMB_PORT
+#define SMB_PORT 445
+#endif
+#ifndef RTSP_PORT
+#define RTSP_PORT 554
+#endif
+#ifndef MSDP_PORT
+#define MSDP_PORT 639
+#endif
+#ifndef LDP_PORT
+#define LDP_PORT 646
+#endif
+#ifndef PPTP_PORT
+#define PPTP_PORT 1723
+#endif
+#ifndef NFS_PORT
+#define NFS_PORT 2049
+#endif
+#ifndef REDIS_PORT
+#define REDIS_PORT 6379
+#endif
+#ifndef OPENFLOW_PORT_OLD
+#define OPENFLOW_PORT_OLD 6633
+#endif
+#ifndef OPENFLOW_PORT_IANA
+#define OPENFLOW_PORT_IANA 6653
+#endif
+#ifndef HTTP_PORT_ALT
+#define HTTP_PORT_ALT 8080
+#endif
+#ifndef RTSP_PORT_ALT
+#define RTSP_PORT_ALT 8554
+#endif
+#ifndef BEEP_PORT
+#define BEEP_PORT 10288
+#endif
projects / tcpdump / blobdiff