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| author | ps <ps@FreeBSD.org> | 2005-04-10 05:24:59 +0000 |
|---|---|---|
| committer | ps <ps@FreeBSD.org> | 2005-04-10 05:24:59 +0000 |
| commit | ebd6b162f88b784455e9995a341013d78332cbc0 (patch) | |
| tree | 663deb5d16b5f5ca6390d4a71eb617e1137dd44f /sys/netinet/tcp_seq.h | |
| parent | f6d14de55c90b68a7b8c2be07727978a4da1f908 (diff) | |
| download | FreeBSD-src-ebd6b162f88b784455e9995a341013d78332cbc0.zip FreeBSD-src-ebd6b162f88b784455e9995a341013d78332cbc0.tar.gz | |
- Tighten up the Timestamp checks to prevent a spoofed segment from
setting ts_recent to an arbitrary value, stopping further
communication between the two hosts.
- If the Echoed Timestamp is greater than the current time,
fall back to the non RFC 1323 RTT calculation.
Submitted by: Raja Mukerji (raja at moselle dot com)
Reviewed by: Noritoshi Demizu, Mohan Srinivasan
Diffstat (limited to 'sys/netinet/tcp_seq.h')
| -rw-r--r-- | sys/netinet/tcp_seq.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/netinet/tcp_seq.h b/sys/netinet/tcp_seq.h index dfc8f0e..7f46201 100644 --- a/sys/netinet/tcp_seq.h +++ b/sys/netinet/tcp_seq.h @@ -47,6 +47,7 @@ /* for modulo comparisons of timestamps */ #define TSTMP_LT(a,b) ((int)((a)-(b)) < 0) +#define TSTMP_GT(a,b) ((int)((a)-(b)) > 0) #define TSTMP_GEQ(a,b) ((int)((a)-(b)) >= 0) /* |
