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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>
This commit is contained in:
Wanlong Gao 2012-03-07 22:17:14 +08:00 committed by Eric Paris
parent 0b36e44cc6
commit 562c99f20d
6 changed files with 15 additions and 47 deletions
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32
security/selinux/avc.c
View File

@ -65,14 +65,8 @@ struct avc_cache {
};
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 @@ noinline int slow_avc_audit(u32 ssid, u32 tsid, u16 tclass,
* 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 @@ int __init avc_add_callback(int (*callback)(u32 event, u32 ssid, u32 tsid,
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 @@ int avc_ss_reset(u32 seqno)
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)

6
security/selinux/include/avc.h
View File

@ -170,11 +170,7 @@ u32 avc_policy_seqno(void);
#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);

6
security/selinux/netif.c
View File

@ -252,8 +252,7 @@ static void sel_netif_flush(void)
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 @@ static __init int sel_netif_init(void)
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);

6
security/selinux/netnode.c
View File

@ -297,8 +297,7 @@ static void sel_netnode_flush(void)
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 @@ static __init int sel_netnode_init(void)
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);

6
security/selinux/netport.c
View File

@ -234,8 +234,7 @@ static void sel_netport_flush(void)
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 @@ static __init int sel_netport_init(void)
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);

6
security/selinux/ss/services.c
View File

@ -3044,8 +3044,7 @@ int selinux_audit_rule_match(u32 sid, u32 field, u32 op, void *vrule,
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 @@ static int __init aurule_init(void)
{
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);