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apparmor: change aad apparmor_audit_data macro to a fn macro

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The aad macro can replace aad strings when it is not intended to. Switch
to a fn macro so it is only applied when intended.

Also at the same time cleanup audit_data initialization by putting
common boiler plate behind a macro, and dropping the gfp_t parameter
which will become useless.

Signed-off-by: John Johansen <john.johansen@canonical.com>
This commit is contained in:
John Johansen
2017-01-16 00:43:02 -08:00
parent 47f6e5cc73
commit ef88a7ac55
12 changed files with 153 additions and 159 deletions
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42
security/apparmor/audit.c
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@@ -62,23 +62,23 @@ static void audit_pre(struct audit_buffer *ab, void *ca)
if (aa_g_audit_header) {
audit_log_format(ab, "apparmor=");
audit_log_string(ab, aa_audit_type[sa->aad->type]);
audit_log_string(ab, aa_audit_type[aad(sa)->type]);
}
if (sa->aad->op) {
if (aad(sa)->op) {
audit_log_format(ab, " operation=");
audit_log_string(ab, sa->aad->op);
audit_log_string(ab, aad(sa)->op);
}
if (sa->aad->info) {
if (aad(sa)->info) {
audit_log_format(ab, " info=");
audit_log_string(ab, sa->aad->info);
if (sa->aad->error)
audit_log_format(ab, " error=%d", sa->aad->error);
audit_log_string(ab, aad(sa)->info);
if (aad(sa)->error)
audit_log_format(ab, " error=%d", aad(sa)->error);
}
if (sa->aad->profile) {
struct aa_profile *profile = sa->aad->profile;
if (aad(sa)->profile) {
struct aa_profile *profile = aad(sa)->profile;
if (profile->ns != root_ns) {
audit_log_format(ab, " namespace=");
audit_log_untrustedstring(ab, profile->ns->base.hname);
@@ -87,9 +87,9 @@ static void audit_pre(struct audit_buffer *ab, void *ca)
audit_log_untrustedstring(ab, profile->base.hname);
}
if (sa->aad->name) {
if (aad(sa)->name) {
audit_log_format(ab, " name=");
audit_log_untrustedstring(ab, sa->aad->name);
audit_log_untrustedstring(ab, aad(sa)->name);
}
}
@@ -101,7 +101,7 @@ static void audit_pre(struct audit_buffer *ab, void *ca)
void aa_audit_msg(int type, struct common_audit_data *sa,
void (*cb) (struct audit_buffer *, void *))
{
sa->aad->type = type;
aad(sa)->type = type;
common_lsm_audit(sa, audit_pre, cb);
}
@@ -109,7 +109,6 @@ void aa_audit_msg(int type, struct common_audit_data *sa,
* aa_audit - Log a profile based audit event to the audit subsystem
* @type: audit type for the message
* @profile: profile to check against (NOT NULL)
* @gfp: allocation flags to use
* @sa: audit event (NOT NULL)
* @cb: optional callback fn for type specific fields (MAYBE NULL)
*
@@ -117,14 +116,13 @@ void aa_audit_msg(int type, struct common_audit_data *sa,
*
* Returns: error on failure
*/
int aa_audit(int type, struct aa_profile *profile, gfp_t gfp,
struct common_audit_data *sa,
int aa_audit(int type, struct aa_profile *profile, struct common_audit_data *sa,
void (*cb) (struct audit_buffer *, void *))
{
BUG_ON(!profile);
if (type == AUDIT_APPARMOR_AUTO) {
if (likely(!sa->aad->error)) {
if (likely(!aad(sa)->error)) {
if (AUDIT_MODE(profile) != AUDIT_ALL)
return 0;
type = AUDIT_APPARMOR_AUDIT;
@@ -136,23 +134,23 @@ int aa_audit(int type, struct aa_profile *profile, gfp_t gfp,
if (AUDIT_MODE(profile) == AUDIT_QUIET ||
(type == AUDIT_APPARMOR_DENIED &&
AUDIT_MODE(profile) == AUDIT_QUIET))
return sa->aad->error;
return aad(sa)->error;
if (KILL_MODE(profile) && type == AUDIT_APPARMOR_DENIED)
type = AUDIT_APPARMOR_KILL;
if (!unconfined(profile))
sa->aad->profile = profile;
aad(sa)->profile = profile;
aa_audit_msg(type, sa, cb);
if (sa->aad->type == AUDIT_APPARMOR_KILL)
if (aad(sa)->type == AUDIT_APPARMOR_KILL)
(void)send_sig_info(SIGKILL, NULL,
sa->type == LSM_AUDIT_DATA_TASK && sa->u.tsk ?
sa->u.tsk : current);
if (sa->aad->type == AUDIT_APPARMOR_ALLOWED)
return complain_error(sa->aad->error);
if (aad(sa)->type == AUDIT_APPARMOR_ALLOWED)
return complain_error(aad(sa)->error);
return sa->aad->error;
return aad(sa)->error;
}