#include "avc.h"
#include "avc_ss.h"
-static const struct av_perm_to_string
-{
- u16 tclass;
- u32 value;
- const char *name;
-} av_perm_to_string[] = {
+static const struct av_perm_to_string av_perm_to_string[] = {
#define S_(c, v, s) { c, v, s },
#include "av_perm_to_string.h"
#undef S_
#undef TE_
#undef S_
-static const struct av_inherit
-{
- u16 tclass;
- const char **common_pts;
- u32 common_base;
-} av_inherit[] = {
+static const struct av_inherit av_inherit[] = {
#define S_(c, i, b) { c, common_##i##_perm_to_string, b },
#include "av_inherit.h"
#undef S_
};
+const struct selinux_class_perm selinux_class_perm = {
+ av_perm_to_string,
+ ARRAY_SIZE(av_perm_to_string),
+ class_to_string,
+ ARRAY_SIZE(class_to_string),
+ av_inherit,
+ ARRAY_SIZE(av_inherit)
+};
+
#define AVC_CACHE_SLOTS 512
#define AVC_DEF_CACHE_THRESHOLD 512
#define AVC_CACHE_RECLAIM 16
static struct avc_cache avc_cache;
static struct avc_callback_node *avc_callbacks;
-static kmem_cache_t *avc_node_cachep;
+static struct kmem_cache *avc_node_cachep;
static inline int avc_hash(u32 ssid, u32 tsid, u16 tclass)
{
audit_log_format(ab, " tcontext=%s", scontext);
kfree(scontext);
}
+
+ BUG_ON(tclass >= ARRAY_SIZE(class_to_string) || !class_to_string[tclass]);
audit_log_format(ab, " tclass=%s", class_to_string[tclass]);
}
atomic_set(&avc_cache.lru_hint, 0);
avc_node_cachep = kmem_cache_create("avc_node", sizeof(struct avc_node),
- 0, SLAB_PANIC, NULL, NULL);
+ 0, SLAB_PANIC, NULL);
audit_log(current->audit_context, GFP_KERNEL, AUDIT_KERNEL, "AVC INITIALIZED\n");
}
{
struct avc_node *node;
- node = kmem_cache_alloc(avc_node_cachep, SLAB_ATOMIC);
+ node = kmem_cache_zalloc(avc_node_cachep, GFP_ATOMIC);
if (!node)
goto out;
- memset(node, 0, sizeof(*node));
INIT_RCU_HEAD(&node->rhead);
INIT_LIST_HEAD(&node->list);
atomic_set(&node->ae.used, 1);
audit_log_format(ab, " %s=%d", name2, ntohs(port));
}
-static inline void avc_print_ipv4_addr(struct audit_buffer *ab, u32 addr,
+static inline void avc_print_ipv4_addr(struct audit_buffer *ab, __be32 addr,
__be16 port, char *name1, char *name2)
{
if (addr)
case AVC_AUDIT_DATA_FS:
if (a->u.fs.dentry) {
struct dentry *dentry = a->u.fs.dentry;
- if (a->u.fs.mnt)
- audit_avc_path(dentry, a->u.fs.mnt);
- audit_log_format(ab, " name=");
- audit_log_untrustedstring(ab, dentry->d_name.name);
+ if (a->u.fs.mnt) {
+ audit_log_d_path(ab, "path=", dentry, a->u.fs.mnt);
+ } else {
+ audit_log_format(ab, " name=");
+ audit_log_untrustedstring(ab, dentry->d_name.name);
+ }
inode = dentry->d_inode;
} else if (a->u.fs.inode) {
struct dentry *dentry;
}
}
if (inode)
- audit_log_format(ab, " dev=%s ino=%ld",
+ audit_log_format(ab, " dev=%s ino=%lu",
inode->i_sb->s_id,
inode->i_ino);
break;
case AF_UNIX:
u = unix_sk(sk);
if (u->dentry) {
- audit_avc_path(u->dentry, u->mnt);
- audit_log_format(ab, " name=");
- audit_log_untrustedstring(ab, u->dentry->d_name.name);
+ audit_log_d_path(ab, "path=",
+ u->dentry, u->mnt);
break;
}
if (!u->addr)
int avc_ss_reset(u32 seqno)
{
struct avc_callback_node *c;
- int i, rc = 0;
+ int i, rc = 0, tmprc;
unsigned long flag;
struct avc_node *node;
for (c = avc_callbacks; c; c = c->next) {
if (c->events & AVC_CALLBACK_RESET) {
- rc = c->callback(AVC_CALLBACK_RESET,
- 0, 0, 0, 0, NULL);
- if (rc)
- goto out;
+ tmprc = c->callback(AVC_CALLBACK_RESET,
+ 0, 0, 0, 0, NULL);
+ /* save the first error encountered for the return
+ value and continue processing the callbacks */
+ if (!rc)
+ rc = tmprc;
}
}
avc_latest_notif_update(seqno, 0);
-out:
return rc;
}
* @tsid: target security identifier
* @tclass: target security class
* @requested: requested permissions, interpreted based on @tclass
+ * @flags: AVC_STRICT or 0
* @avd: access vector decisions
*
* Check the AVC to determine whether the @requested permissions are granted
* should be released for the auditing.
*/
int avc_has_perm_noaudit(u32 ssid, u32 tsid,
- u16 tclass, u32 requested,
- struct av_decision *avd)
+ u16 tclass, u32 requested,
+ unsigned flags,
+ struct av_decision *avd)
{
struct avc_node *node;
struct avc_entry entry, *p_ae;
denied = requested & ~(p_ae->avd.allowed);
if (!requested || denied) {
- if (selinux_enforcing)
+ if (selinux_enforcing || (flags & AVC_STRICT))
rc = -EACCES;
else
if (node)
struct av_decision avd;
int rc;
- rc = avc_has_perm_noaudit(ssid, tsid, tclass, requested, &avd);
+ rc = avc_has_perm_noaudit(ssid, tsid, tclass, requested, 0, &avd);
avc_audit(ssid, tsid, tclass, requested, &avd, rc, auditdata);
return rc;
}
+
+u32 avc_policy_seqno(void)
+{
+ return avc_cache.latest_notif;
+}