Re: need rules help

On Thu, 2009-08-06 at 10:10 -0500, LC Bruzenak wrote: OK, I'm back with new evidence of a problem after what I think is correct setup. I put only the subj_type as a comparator even though I want a more restrictive set. the rule was set with the "-A" flag. * My rules start with (use "auditctl -l"): LIST_RULES: entry,always arch=3221225534 (0xc000003e) syscall=mknod,mknodat LIST_RULES: entry,always arch=3221225534 (0xc000003e) syscall=mount,umount2 LIST_RULES: exit,never subj_type=jcdx_mtdb_t syscall=all ... * I note the date: Thu Aug 6 20:36:31 UTC 2009 * I search again later (using ausearch) and find: node=jcdx type=PATH msg=audit(08/06/2009 20:42:20.726:21672) : item=0 name=/var/opt/jcdx/tracks/mltrackdb/PlatformTracks.inst/040fd238ede9dfbbc19e012c7633836f/PlatformTracks node=jcdx type=CWD msg=audit(08/06/2009 20:42:20.726:21672) : cwd=/ node=jcdx type=SYSCALL msg=audit(08/06/2009 20:42:20.726:21672) : arch=i386 syscall=stat64 success=no exit=-2(No such file or directory) a0=9a4ea40 a1=ffc93644 a2=d2aff4 a3=ffc9377c items=1 ppid=1 pid=23599 auid=root uid=root gid=jcdx euid=root suid=root fsuid=root egid=jcdx sgid=jcdx fsgid=jcdx tty=(none) ses=8 comm=mtdb exe=/opt/jcdx/sbin/mtdb subj=system_u:system_r:jcdx_mtdb_t:s0-s6:c0.c511 key=(null) node=jcdx type=AVC msg=audit(08/06/2009 20:42:20.726:21672) : avc: denied { search } for pid=23599 comm=mtdb name=040fd238ede9dfbbc19e012c7633836f dev=dm-0 ino=269567 scontext=system_u:system_r:jcdx_mtdb_t:s0-s6:c0.c511 tcontext=system_u:object_r:jcdx_stdb_var_t:s15:c0.c1023 tclass=dir So it appears that the "never" rule is not firing...right? I'm not sure if the rule applies to only the info in the "type=syscall" line. Really I want to compare against the specific scontext/tcontext pair in the "type=AVC" line. Thanks in advance, LCB. -- LC (Lenny) Bruzenak lenny(a)magitekltd.com