Date: Fri, 9 Jan 2009 16:02:19 +0000 (UTC) From: Adrian Chadd <adrian@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/conf NOTES options src/sys/netinet in.h in_pcb.c in_pcb.h ip_output.c Message-ID: <200901091602.n09G2wP0053992@repoman.freebsd.org>
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adrian 2009-01-09 16:02:19 UTC
FreeBSD src repository
Modified files:
sys/conf NOTES options
sys/netinet in.h in_pcb.c in_pcb.h ip_output.c
Log:
SVN rev 186955 on 2009-01-09 16:02:19Z by adrian
Implement a new IP option (not compiled/enabled by default) to allow
applications to specify a non-local IP address when bind()'ing a socket
to a local endpoint.
This allows applications to spoof the client IP address of connections
if (obviously!) they somehow are able to receive the traffic normally
destined to said clients.
This patch doesn't include any changes to ipfw or the bridging code to
redirect the client traffic through the PCB checks so TCP gets a shot
at it. The normal behaviour is that packets with a non-local destination
IP address are not handled locally. This can be dealth with some IPFW hackery;
modifications to IPFW to make this less hacky will occur in subsequent
commmits.
Thanks to Julian Elischer and others at Ironport. This work was approved
and donated before Cisco acquired them.
Obtained from: Julian Elischer and others
MFC after: 2 weeks
Revision Changes Path
1.1520 +8 -0 src/sys/conf/NOTES
1.655 +1 -0 src/sys/conf/options
1.105 +1 -0 src/sys/netinet/in.h
1.237 +6 -1 src/sys/netinet/in_pcb.c
1.125 +2 -0 src/sys/netinet/in_pcb.h
1.295 +19 -0 src/sys/netinet/ip_output.c
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