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When generating a TCP response to a connection, not only test if the

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tcpcb is NULL, but also its connected inpcb, since we now allow
elements of a TCP connection to hang around after other state, such
as the socket, has been recycled.

Tested by:	dcs
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
This commit is contained in:
Robert Watson 2003-02-25 14:08:41 +00:00
parent a4910cd21c
commit 9327ee33bf
2 changed files with 2 additions and 2 deletions
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2
sys/netinet/tcp_subr.c
View File

@ -484,7 +484,7 @@ tcp_respond(tp, ipgen, th, m, ack, seq, flags)
m->m_pkthdr.len = tlen; m->m_pkthdr.len = tlen;
m->m_pkthdr.rcvif = (struct ifnet *) 0; m->m_pkthdr.rcvif = (struct ifnet *) 0;
#ifdef MAC #ifdef MAC
if (tp != NULL) { if (tp != NULL && tp->t_inpcb != NULL) {
/* /*
* Packet is associated with a socket, so allow the * Packet is associated with a socket, so allow the
* label of the response to reflect the socket label. * label of the response to reflect the socket label.

2
sys/netinet/tcp_timewait.c
View File

@ -484,7 +484,7 @@ tcp_respond(tp, ipgen, th, m, ack, seq, flags)
m->m_pkthdr.len = tlen; m->m_pkthdr.len = tlen;
m->m_pkthdr.rcvif = (struct ifnet *) 0; m->m_pkthdr.rcvif = (struct ifnet *) 0;
#ifdef MAC #ifdef MAC
if (tp != NULL) { if (tp != NULL && tp->t_inpcb != NULL) {
/* /*
* Packet is associated with a socket, so allow the * Packet is associated with a socket, so allow the
* label of the response to reflect the socket label. * label of the response to reflect the socket label.