10 Nov, 2009

1 commit

  • For SELinux to do better filtering in userspace we send the name of the
    module along with the AVC denial when a program is denied module_request.

    Example output:

    type=SYSCALL msg=audit(11/03/2009 10:59:43.510:9) : arch=x86_64 syscall=write success=yes exit=2 a0=3 a1=7fc28c0d56c0 a2=2 a3=7fffca0d7440 items=0 ppid=1727 pid=1729 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=rpc.nfsd exe=/usr/sbin/rpc.nfsd subj=system_u:system_r:nfsd_t:s0 key=(null)
    type=AVC msg=audit(11/03/2009 10:59:43.510:9) : avc: denied { module_request } for pid=1729 comm=rpc.nfsd kmod="net-pf-10" scontext=system_u:system_r:nfsd_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=system

    Signed-off-by: Eric Paris
    Signed-off-by: James Morris

    Eric Paris
     

17 Aug, 2009

1 commit

  • Convert avc_audit in security/selinux/avc.c to use lsm_audit.h,
    for better maintainability.

    - changed selinux to use common_audit_data instead of
    avc_audit_data
    - eliminated code in avc.c and used code from lsm_audit.h instead.

    Had to add a LSM_AUDIT_NO_AUDIT to lsm_audit.h so that avc_audit
    can call common_lsm_audit and do the pre and post callbacks without
    doing the actual dump. This makes it so that the patched version
    behaves the same way as the unpatched version.

    Also added a denied field to the selinux_audit_data private space,
    once again to make it so that the patched version behaves like the
    unpatched.

    I've tested and confirmed that AVCs look the same before and after
    this patch.

    Signed-off-by: Thomas Liu
    Acked-by: Stephen Smalley
    Signed-off-by: James Morris

    Thomas Liu
     

10 Jul, 2009

3 commits


14 Apr, 2009

1 commit

  • This patch creates auditing functions usable by LSM to audit security
    events. It provides standard dumping of FS, NET, task etc ... events
    (code borrowed from SELinux)
    and provides 2 callbacks to define LSM specific auditing, which should be
    flexible enough to convert SELinux too.

    Signed-off-by: Etienne Basset
    Acked-by: Casey Schaufler
    cked-by: Eric Paris
    Signed-off-by: James Morris

    Etienne Basset