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| author | rpaulo <rpaulo@FreeBSD.org> | 2009-10-07 09:07:06 +0000 |
|---|---|---|
| committer | rpaulo <rpaulo@FreeBSD.org> | 2009-10-07 09:07:06 +0000 |
| commit | 38b5375bb9e04dc98166ad7cb26eeea6454a92fc (patch) | |
| tree | 31ee79eebdb43e93bb0d2b6c8ead8e8013ecdddc /contrib/tcpdump | |
| parent | d6f29069b6735fa01a2f684d5224bd939b5ef84f (diff) | |
| download | FreeBSD-src-38b5375bb9e04dc98166ad7cb26eeea6454a92fc.zip FreeBSD-src-38b5375bb9e04dc98166ad7cb26eeea6454a92fc.tar.gz | |
Add parsing code for TCP UTO (User Timeout Option).
Submitted by: fangwang@
Obtained from: //depot/projects/soc2009/tcputo/
Diffstat (limited to 'contrib/tcpdump')
| -rw-r--r-- | contrib/tcpdump/print-tcp.c | 12 | ||||
| -rw-r--r-- | contrib/tcpdump/tcp.h | 2 |
2 files changed, 14 insertions, 0 deletions
diff --git a/contrib/tcpdump/print-tcp.c b/contrib/tcpdump/print-tcp.c index 5b0a796..4200c31 100644 --- a/contrib/tcpdump/print-tcp.c +++ b/contrib/tcpdump/print-tcp.c @@ -124,6 +124,7 @@ struct tok tcp_option_values[] = { { TCPOPT_CCECHO, "" }, { TCPOPT_SIGNATURE, "md5" }, { TCPOPT_AUTH, "enhanced auth" }, + { TCPOPT_UTO, "uto" }, { 0, NULL } }; @@ -613,6 +614,17 @@ tcp_print(register const u_char *bp, register u_int length, */ break; + case TCPOPT_UTO: + datalen = 2; + LENCHECK(datalen); + uint utoval = EXTRACT_16BITS(cp); + if (utoval & 0x0001) + utoval = (utoval >> 1) * 60; + else + utoval >>= 1; + (void)printf(" %u", utoval); + break; + default: datalen = len - 2; for (i = 0; i < datalen; ++i) { diff --git a/contrib/tcpdump/tcp.h b/contrib/tcpdump/tcp.h index db7dd44..1393a27 100644 --- a/contrib/tcpdump/tcp.h +++ b/contrib/tcpdump/tcp.h @@ -83,6 +83,8 @@ struct tcphdr { #define TCPOLEN_SIGNATURE 18 #define TCP_SIGLEN 16 /* length of an option 19 digest */ #define TCPOPT_AUTH 20 /* Enhanced AUTH option */ +#define TCPOPT_UTO 28 /* tcp user timeout (rfc5482) */ +#define TCPOLEN_UTO 4 #define TCPOPT_TSTAMP_HDR \ (TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_TIMESTAMP<<8|TCPOLEN_TIMESTAMP) |
