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lsm: Use a compressed IPv6 string format in audit events

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Currently the audit subsystem prints uncompressed IPv6 addresses which not
only differs from common usage but also results in ridiculously large audit
strings which is not a good thing.  This patch fixes this by simply converting
audit to always print compressed IPv6 addresses.

Old message example:

 audit(1253576792.161:30): avc:  denied  { ingress } for
  saddr=0000:0000:0000:0000:0000:0000:0000:0001 src=5000
  daddr=0000:0000:0000:0000:0000:0000:0000:0001 dest=35502 netif=lo
  scontext=system_u:object_r:unlabeled_t:s15:c0.c1023
  tcontext=system_u:object_r:lo_netif_t:s0-s15:c0.c1023 tclass=netif

New message example:

 audit(1253576792.161:30): avc:  denied  { ingress } for
  saddr=::1 src=5000 daddr=::1 dest=35502 netif=lo
  scontext=system_u:object_r:unlabeled_t:s15:c0.c1023
  tcontext=system_u:object_r:lo_netif_t:s0-s15:c0.c1023 tclass=netif

Signed-off-by: Paul Moore <[email protected]>
Signed-off-by: Eric Paris <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Paul Moore 2009-09-23 13:46:00 -04:00 • committed by Al Viro
commit d81165919e
1 changed files with 1 additions and 1 deletions
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2
security/lsm_audit.c
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@ -187,7 +187,7 @@ static inline void print_ipv6_addr(struct audit_buffer *ab,
char *name1, char *name2)
{
if (!ipv6_addr_any(addr))
audit_log_format(ab, " %s=%pI6", name1, addr);
audit_log_format(ab, " %s=%pI6c", name1, addr);
if (port)
audit_log_format(ab, " %s=%d", name2, ntohs(port));
}