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[PATCH] audit: support for object context filters

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This patch introduces object audit filters based on the elements
of the SELinux context.

Signed-off-by: Darrel Goeddel <dgoeddel@trustedcs.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>

 kernel/auditfilter.c           |   25 +++++++++++++++++++++++++
 kernel/auditsc.c               |   40 ++++++++++++++++++++++++++++++++++++++++
 security/selinux/ss/services.c |   18 +++++++++++++++++-
 3 files changed, 82 insertions(+), 1 deletion(-)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Darrel Goeddel
2006-06-29 16:57:08 -05:00
committed by Al Viro
parent 3a6b9f85c6
commit 6e5a2d1d32
3 changed files with 82 additions and 1 deletions
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40
kernel/auditsc.c
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@@ -342,6 +342,46 @@ static int audit_filter_rules(struct task_struct *tsk,
ctx);
}
break;
case AUDIT_OBJ_USER:
case AUDIT_OBJ_ROLE:
case AUDIT_OBJ_TYPE:
case AUDIT_OBJ_LEV_LOW:
case AUDIT_OBJ_LEV_HIGH:
/* The above note for AUDIT_SUBJ_USER...AUDIT_SUBJ_CLR
also applies here */
if (f->se_rule) {
/* Find files that match */
if (name) {
result = selinux_audit_rule_match(
name->osid, f->type, f->op,
f->se_rule, ctx);
} else if (ctx) {
for (j = 0; j < ctx->name_count; j++) {
if (selinux_audit_rule_match(
ctx->names[j].osid,
f->type, f->op,
f->se_rule, ctx)) {
++result;
break;
}
}
}
/* Find ipc objects that match */
if (ctx) {
struct audit_aux_data *aux;
for (aux = ctx->aux; aux;
aux = aux->next) {
if (aux->type == AUDIT_IPC) {
struct audit_aux_data_ipcctl *axi = (void *)aux;
if (selinux_audit_rule_match(axi->osid, f->type, f->op, f->se_rule, ctx)) {
++result;
break;
}
}
}
}
}
break;
case AUDIT_ARG0:
case AUDIT_ARG1:
case AUDIT_ARG2: