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authorPeter Moody <pmoody@google.com>2012-01-04 15:24:31 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-01-17 16:17:03 -0500
commit10d68360871657204885371cdf2594412675d2f9 (patch)
tree85a4fa8d3b0dc0a7bc525475325f955f75d3881d /kernel/auditsc.c
parent4a6633ed08af5ba67790b4d1adcdeb8ceb55677e (diff)
downloadlinaro-lsk-10d68360871657204885371cdf2594412675d2f9.tar.gz
audit: comparison on interprocess fields
This allows audit to specify rules in which we compare two fields of a process. Such as is the running process uid != to the running process euid? Signed-off-by: Peter Moody <pmoody@google.com> Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'kernel/auditsc.c')
-rw-r--r--kernel/auditsc.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index b8cee462b99..593237e3654 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -545,6 +545,45 @@ static int audit_field_compare(struct task_struct *tsk,
return audit_compare_id(cred->fsgid,
name, offsetof(struct audit_names, gid),
f, ctx);
+ /* uid comparisons */
+ case AUDIT_COMPARE_UID_TO_AUID:
+ return audit_comparator(cred->uid, f->op, tsk->loginuid);
+ case AUDIT_COMPARE_UID_TO_EUID:
+ return audit_comparator(cred->uid, f->op, cred->euid);
+ case AUDIT_COMPARE_UID_TO_SUID:
+ return audit_comparator(cred->uid, f->op, cred->suid);
+ case AUDIT_COMPARE_UID_TO_FSUID:
+ return audit_comparator(cred->uid, f->op, cred->fsuid);
+ /* auid comparisons */
+ case AUDIT_COMPARE_AUID_TO_EUID:
+ return audit_comparator(tsk->loginuid, f->op, cred->euid);
+ case AUDIT_COMPARE_AUID_TO_SUID:
+ return audit_comparator(tsk->loginuid, f->op, cred->suid);
+ case AUDIT_COMPARE_AUID_TO_FSUID:
+ return audit_comparator(tsk->loginuid, f->op, cred->fsuid);
+ /* euid comparisons */
+ case AUDIT_COMPARE_EUID_TO_SUID:
+ return audit_comparator(cred->euid, f->op, cred->suid);
+ case AUDIT_COMPARE_EUID_TO_FSUID:
+ return audit_comparator(cred->euid, f->op, cred->fsuid);
+ /* suid comparisons */
+ case AUDIT_COMPARE_SUID_TO_FSUID:
+ return audit_comparator(cred->suid, f->op, cred->fsuid);
+ /* gid comparisons */
+ case AUDIT_COMPARE_GID_TO_EGID:
+ return audit_comparator(cred->gid, f->op, cred->egid);
+ case AUDIT_COMPARE_GID_TO_SGID:
+ return audit_comparator(cred->gid, f->op, cred->sgid);
+ case AUDIT_COMPARE_GID_TO_FSGID:
+ return audit_comparator(cred->gid, f->op, cred->fsgid);
+ /* egid comparisons */
+ case AUDIT_COMPARE_EGID_TO_SGID:
+ return audit_comparator(cred->egid, f->op, cred->sgid);
+ case AUDIT_COMPARE_EGID_TO_FSGID:
+ return audit_comparator(cred->egid, f->op, cred->fsgid);
+ /* sgid comparison */
+ case AUDIT_COMPARE_SGID_TO_FSGID:
+ return audit_comparator(cred->sgid, f->op, cred->fsgid);
default:
WARN(1, "Missing AUDIT_COMPARE define. Report as a bug\n");
return 0;