diff options
| author | rwatson <rwatson@FreeBSD.org> | 2002-08-01 03:54:43 +0000 |
|---|---|---|
| committer | rwatson <rwatson@FreeBSD.org> | 2002-08-01 03:54:43 +0000 |
| commit | 00b9d17af80c536ef3f13148fdec855331b41dfb (patch) | |
| tree | bec9fa3de914039bc5716d0495afd94bc0e9dfe7 | |
| parent | 41180c5da4c85b05452d6c0d9c8ecd9b923c6c5b (diff) | |
| download | FreeBSD-src-00b9d17af80c536ef3f13148fdec855331b41dfb.zip FreeBSD-src-00b9d17af80c536ef3f13148fdec855331b41dfb.tar.gz | |
Document the undocumented assumption that at least one of the PCB
pointer and incoming mbuf pointer will be non-NULL in tcp_respond().
This is relied on by the MAC code for correctness, as well as
existing code.
Obtained from: TrustedBSD PRoject
Sponsored by: DARPA, NAI Labs
| -rw-r--r-- | sys/netinet/tcp_subr.c | 2 | ||||
| -rw-r--r-- | sys/netinet/tcp_timewait.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/sys/netinet/tcp_subr.c b/sys/netinet/tcp_subr.c index f960fc4..fb6bd8be 100644 --- a/sys/netinet/tcp_subr.c +++ b/sys/netinet/tcp_subr.c @@ -347,6 +347,8 @@ tcp_respond(tp, ipgen, th, m, ack, seq, flags) #endif /* INET6 */ int ipflags = 0; + KASSERT(tp != NULL || m != NULL, ("tcp_respond: tp and m both NULL")); + #ifdef INET6 isipv6 = IP_VHL_V(((struct ip *)ipgen)->ip_vhl) == 6; ip6 = ipgen; diff --git a/sys/netinet/tcp_timewait.c b/sys/netinet/tcp_timewait.c index f960fc4..fb6bd8be 100644 --- a/sys/netinet/tcp_timewait.c +++ b/sys/netinet/tcp_timewait.c @@ -347,6 +347,8 @@ tcp_respond(tp, ipgen, th, m, ack, seq, flags) #endif /* INET6 */ int ipflags = 0; + KASSERT(tp != NULL || m != NULL, ("tcp_respond: tp and m both NULL")); + #ifdef INET6 isipv6 = IP_VHL_V(((struct ip *)ipgen)->ip_vhl) == 6; ip6 = ipgen; |
