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| author | mdodd <mdodd@FreeBSD.org> | 2003-04-01 08:21:44 +0000 |
|---|---|---|
| committer | mdodd <mdodd@FreeBSD.org> | 2003-04-01 08:21:44 +0000 |
| commit | e72fdee732ab55fc784034c81ccedda4b5279816 (patch) | |
| tree | f90a5d7ffe2a0b6602c7942defa8707719f90a9c /sys/netinet/in_pcb.h | |
| parent | 0bafba46a2e8ee2d4fd220f149d08306f11d0f4d (diff) | |
| download | FreeBSD-src-e72fdee732ab55fc784034c81ccedda4b5279816.zip FreeBSD-src-e72fdee732ab55fc784034c81ccedda4b5279816.tar.gz | |
Implement support for RFC 3514 (The Security Flag in the IPv4 Header).
(See: ftp://ftp.rfc-editor.org/in-notes/rfc3514.txt)
This fulfills the host requirements for userland support by
way of the setsockopt() IP_EVIL_INTENT message.
There are three sysctl tunables provided to govern system behavior.
net.inet.ip.rfc3514:
Enables support for rfc3514. As this is an
Informational RFC and support is not yet widespread
this option is disabled by default.
net.inet.ip.hear_no_evil
If set the host will discard all received evil packets.
net.inet.ip.speak_no_evil
If set the host will discard all transmitted evil packets.
The IP statistics counter 'ips_evil' (available via 'netstat') provides
information on the number of 'evil' packets recieved.
For reference, the '-E' option to 'ping' has been provided to demonstrate
and test the implementation.
Diffstat (limited to 'sys/netinet/in_pcb.h')
| -rw-r--r-- | sys/netinet/in_pcb.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/netinet/in_pcb.h b/sys/netinet/in_pcb.h index efb7862..eb02c6e 100644 --- a/sys/netinet/in_pcb.h +++ b/sys/netinet/in_pcb.h @@ -276,6 +276,7 @@ struct inpcbinfo { /* XXX documentation, prefixes */ #define INP_RECVIF 0x80 /* receive incoming interface */ #define INP_MTUDISC 0x100 /* user can do MTU discovery */ #define INP_FAITH 0x200 /* accept FAITH'ed connections */ +#define INP_EVIL 0x400 /* Packet has evil intentions */ #define IN6P_IPV6_V6ONLY 0x008000 /* restrict AF_INET6 socket for v6 */ |
