SELinux: avc: remove the useless fields in avc_add_callback
avc_add_callback now just used for registering reset functions
in initcalls, and the callback functions just did reset operations.
So, reducing the arguments to only one event is enough now.
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index 5c1326e..68d82da 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -65,14 +65,8 @@
};
struct avc_callback_node {
- int (*callback) (u32 event, u32 ssid, u32 tsid,
- u16 tclass, u32 perms,
- u32 *out_retained);
+ int (*callback) (u32 event);
u32 events;
- u32 ssid;
- u32 tsid;
- u16 tclass;
- u32 perms;
struct avc_callback_node *next;
};
@@ -499,22 +493,12 @@
* avc_add_callback - Register a callback for security events.
* @callback: callback function
* @events: security events
- * @ssid: source security identifier or %SECSID_WILD
- * @tsid: target security identifier or %SECSID_WILD
- * @tclass: target security class
- * @perms: permissions
*
- * Register a callback function for events in the set @events
- * related to the SID pair (@ssid, @tsid)
- * and the permissions @perms, interpreting
- * @perms based on @tclass. Returns %0 on success or
- * -%ENOMEM if insufficient memory exists to add the callback.
+ * Register a callback function for events in the set @events.
+ * Returns %0 on success or -%ENOMEM if insufficient memory
+ * exists to add the callback.
*/
-int __init avc_add_callback(int (*callback)(u32 event, u32 ssid, u32 tsid,
- u16 tclass, u32 perms,
- u32 *out_retained),
- u32 events, u32 ssid, u32 tsid,
- u16 tclass, u32 perms)
+int __init avc_add_callback(int (*callback)(u32 event), u32 events)
{
struct avc_callback_node *c;
int rc = 0;
@@ -527,9 +511,6 @@
c->callback = callback;
c->events = events;
- c->ssid = ssid;
- c->tsid = tsid;
- c->perms = perms;
c->next = avc_callbacks;
avc_callbacks = c;
out:
@@ -669,8 +650,7 @@
for (c = avc_callbacks; c; c = c->next) {
if (c->events & AVC_CALLBACK_RESET) {
- tmprc = c->callback(AVC_CALLBACK_RESET,
- 0, 0, 0, 0, NULL);
+ tmprc = c->callback(AVC_CALLBACK_RESET);
/* save the first error encountered for the return
value and continue processing the callbacks */
if (!rc)
diff --git a/security/selinux/include/avc.h b/security/selinux/include/avc.h
index d97fadc..92d0ab5 100644
--- a/security/selinux/include/avc.h
+++ b/security/selinux/include/avc.h
@@ -170,11 +170,7 @@
#define AVC_CALLBACK_AUDITDENY_ENABLE 64
#define AVC_CALLBACK_AUDITDENY_DISABLE 128
-int avc_add_callback(int (*callback)(u32 event, u32 ssid, u32 tsid,
- u16 tclass, u32 perms,
- u32 *out_retained),
- u32 events, u32 ssid, u32 tsid,
- u16 tclass, u32 perms);
+int avc_add_callback(int (*callback)(u32 event), u32 events);
/* Exported to selinuxfs */
int avc_get_hash_stats(char *page);
diff --git a/security/selinux/netif.c b/security/selinux/netif.c
index 326f22c..47a49d1 100644
--- a/security/selinux/netif.c
+++ b/security/selinux/netif.c
@@ -252,8 +252,7 @@
spin_unlock_bh(&sel_netif_lock);
}
-static int sel_netif_avc_callback(u32 event, u32 ssid, u32 tsid,
- u16 class, u32 perms, u32 *retained)
+static int sel_netif_avc_callback(u32 event)
{
if (event == AVC_CALLBACK_RESET) {
sel_netif_flush();
@@ -292,8 +291,7 @@
register_netdevice_notifier(&sel_netif_netdev_notifier);
- err = avc_add_callback(sel_netif_avc_callback, AVC_CALLBACK_RESET,
- SECSID_NULL, SECSID_NULL, SECCLASS_NULL, 0);
+ err = avc_add_callback(sel_netif_avc_callback, AVC_CALLBACK_RESET);
if (err)
panic("avc_add_callback() failed, error %d\n", err);
diff --git a/security/selinux/netnode.c b/security/selinux/netnode.c
index 8636585..28f911c 100644
--- a/security/selinux/netnode.c
+++ b/security/selinux/netnode.c
@@ -297,8 +297,7 @@
spin_unlock_bh(&sel_netnode_lock);
}
-static int sel_netnode_avc_callback(u32 event, u32 ssid, u32 tsid,
- u16 class, u32 perms, u32 *retained)
+static int sel_netnode_avc_callback(u32 event)
{
if (event == AVC_CALLBACK_RESET) {
sel_netnode_flush();
@@ -320,8 +319,7 @@
sel_netnode_hash[iter].size = 0;
}
- ret = avc_add_callback(sel_netnode_avc_callback, AVC_CALLBACK_RESET,
- SECSID_NULL, SECSID_NULL, SECCLASS_NULL, 0);
+ ret = avc_add_callback(sel_netnode_avc_callback, AVC_CALLBACK_RESET);
if (ret != 0)
panic("avc_add_callback() failed, error %d\n", ret);
diff --git a/security/selinux/netport.c b/security/selinux/netport.c
index 7b9eb1f..d353797 100644
--- a/security/selinux/netport.c
+++ b/security/selinux/netport.c
@@ -234,8 +234,7 @@
spin_unlock_bh(&sel_netport_lock);
}
-static int sel_netport_avc_callback(u32 event, u32 ssid, u32 tsid,
- u16 class, u32 perms, u32 *retained)
+static int sel_netport_avc_callback(u32 event)
{
if (event == AVC_CALLBACK_RESET) {
sel_netport_flush();
@@ -257,8 +256,7 @@
sel_netport_hash[iter].size = 0;
}
- ret = avc_add_callback(sel_netport_avc_callback, AVC_CALLBACK_RESET,
- SECSID_NULL, SECSID_NULL, SECCLASS_NULL, 0);
+ ret = avc_add_callback(sel_netport_avc_callback, AVC_CALLBACK_RESET);
if (ret != 0)
panic("avc_add_callback() failed, error %d\n", ret);
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 9b7e7ed..4321b8f 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -3044,8 +3044,7 @@
static int (*aurule_callback)(void) = audit_update_lsm_rules;
-static int aurule_avc_callback(u32 event, u32 ssid, u32 tsid,
- u16 class, u32 perms, u32 *retained)
+static int aurule_avc_callback(u32 event)
{
int err = 0;
@@ -3058,8 +3057,7 @@
{
int err;
- err = avc_add_callback(aurule_avc_callback, AVC_CALLBACK_RESET,
- SECSID_NULL, SECSID_NULL, SECCLASS_NULL, 0);
+ err = avc_add_callback(aurule_avc_callback, AVC_CALLBACK_RESET);
if (err)
panic("avc_add_callback() failed, error %d\n", err);