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author | rwatson <rwatson@FreeBSD.org> | 2003-11-18 00:39:07 +0000 |
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committer | rwatson <rwatson@FreeBSD.org> | 2003-11-18 00:39:07 +0000 |
commit | 9c969b771a32651104f16586408deb67d7039014 (patch) | |
tree | 9ae16c9f3cb9780bbad2d9f596380ed1094d201c /sys/netinet/ip_divert.c | |
parent | c428ace885437d38f0343448bc61807c6e7a690c (diff) | |
download | FreeBSD-src-9c969b771a32651104f16586408deb67d7039014.zip FreeBSD-src-9c969b771a32651104f16586408deb67d7039014.tar.gz |
Introduce a MAC label reference in 'struct inpcb', which caches
the MAC label referenced from 'struct socket' in the IPv4 and
IPv6-based protocols. This permits MAC labels to be checked during
network delivery operations without dereferencing inp->inp_socket
to get to so->so_label, which will eventually avoid our having to
grab the socket lock during delivery at the network layer.
This change introduces 'struct inpcb' as a labeled object to the
MAC Framework, along with the normal circus of entry points:
initialization, creation from socket, destruction, as well as a
delivery access control check.
For most policies, the inpcb label will simply be a cache of the
socket label, so a new protocol switch method is introduced,
pr_sosetlabel() to notify protocols that the socket layer label
has been updated so that the cache can be updated while holding
appropriate locks. Most protocols implement this using
pru_sosetlabel_null(), but IPv4/IPv6 protocols using inpcbs use
the the worker function in_pcbsosetlabel(), which calls into the
MAC Framework to perform a cache update.
Biba, LOMAC, and MLS implement these entry points, as do the stub
policy, and test policy.
Reviewed by: sam, bms
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
Diffstat (limited to 'sys/netinet/ip_divert.c')
-rw-r--r-- | sys/netinet/ip_divert.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/netinet/ip_divert.c b/sys/netinet/ip_divert.c index 7e939e3..172021b 100644 --- a/sys/netinet/ip_divert.c +++ b/sys/netinet/ip_divert.c @@ -652,5 +652,5 @@ struct pr_usrreqs div_usrreqs = { pru_connect_notsupp, pru_connect2_notsupp, in_control, div_detach, div_disconnect, pru_listen_notsupp, div_peeraddr, pru_rcvd_notsupp, pru_rcvoob_notsupp, div_send, pru_sense_null, div_shutdown, - div_sockaddr, sosend, soreceive, sopoll + div_sockaddr, sosend, soreceive, sopoll, in_pcbsosetlabel }; |