linux/net/xfrm
Paul Moore 875179fa60 [IPSEC]: SPD auditing fix to include the netmask/prefix-length
Currently the netmask/prefix-length of an IPsec SPD entry is not included in
any of the SPD related audit messages.  This can cause a problem when the
audit log is examined as the netmask/prefix-length is vital in determining
what network traffic is affected by a particular SPD entry.  This patch fixes
this problem by adding two additional fields, "src_prefixlen" and
"dst_prefixlen", to the SPD audit messages to indicate the source and
destination netmasks.  These new fields are only included in the audit message
when the netmask/prefix-length is less than the address length, i.e. the SPD
entry applies to a network address and not a host address.

Example audit message:

 type=UNKNOWN[1415] msg=audit(1196105849.752:25): auid=0 \
   subj=root:system_r:unconfined_t:s0-s0:c0.c1023 op=SPD-add res=1 \
   src=192.168.0.0 src_prefixlen=24 dst=192.168.1.0 dst_prefixlen=24

In addition, this patch also fixes a few other things in the
xfrm_audit_common_policyinfo() function.  The IPv4 string formatting was
converted to use the standard NIPQUAD_FMT constant, the memcpy() was removed
from the IPv6 code path and replaced with a typecast (the memcpy() was acting
as a slow, implicit typecast anyway), and two local variables were created to
make referencing the XFRM security context and selector information cleaner.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 14:55:19 -08:00
..
Kconfig [PFKEYV2]: CONFIG_NET_KEY_MIGRATE option 2007-02-08 13:15:05 -08:00
Makefile [IPSEC]: Move common output code to xfrm_output 2007-10-10 16:54:53 -07:00
xfrm_algo.c cleanup asm/scatterlist.h includes 2007-11-02 08:47:06 +01:00
xfrm_hash.c [IPSEC]: kmalloc + memset conversion to kzalloc 2008-01-28 14:55:05 -08:00
xfrm_hash.h [XFRM] STATE: Use destination address for src hash. 2006-10-04 00:31:02 -07:00
xfrm_input.c [IPSEC]: Add async resume support on input 2008-01-28 14:53:54 -08:00
xfrm_output.c [IPSEC]: Kill afinfo->nf_post_routing 2008-01-28 14:53:55 -08:00
xfrm_policy.c [IPSEC]: SPD auditing fix to include the netmask/prefix-length 2008-01-28 14:55:19 -08:00
xfrm_state.c [NET]: Convert init_timer into setup_timer 2008-01-28 14:53:35 -08:00
xfrm_user.c [IPSEC]: Make x->lastused an unsigned long 2008-01-28 14:53:52 -08:00