Merge branch 'next' into for-linus

Documentation/feature-removal-schedule.txt

@@ -315,3 +315,15 @@ When:	2.6.29 (ideally) or 2.6.30 (more likely)
 Why:	Deprecated by the new (standard) device driver binding model. Use
 	i2c_driver->probe() and ->remove() instead.
 Who:	Jean Delvare <khali@linux-fr.org>
+
+---------------------------
+
+What:	SELinux "compat_net" functionality
+When:	2.6.30 at the earliest
+Why:	In 2.6.18 the Secmark concept was introduced to replace the "compat_net"
+	network access control functionality of SELinux.  Secmark offers both
+	better performance and greater flexibility than the "compat_net"
+	mechanism.  Now that the major Linux distributions have moved to
+	Secmark, it is time to deprecate the older mechanism and start the
+	process of removing the old code.
+Who:	Paul Moore <paul.moore@hp.com>

include/linux/capability.h

@@ -529,8 +529,21 @@ extern const kernel_cap_t __cap_init_eff_set;
  *
  * Note that this does not set PF_SUPERPRIV on the task.
  */
-#define has_capability(t, cap) (security_capable((t), (cap)) == 0)
+#define has_capability(t, cap) (security_real_capable((t), (cap)) == 0)
-#define has_capability_noaudit(t, cap) (security_capable_noaudit((t), (cap)) == 0)
+
+/**
+ * has_capability_noaudit - Determine if a task has a superior capability available (unaudited)
+ * @t: The task in question
+ * @cap: The capability to be tested for
+ *
+ * Return true if the specified task has the given superior capability
+ * currently in effect, false if not, but don't write an audit message for the
+ * check.
+ *
+ * Note that this does not set PF_SUPERPRIV on the task.
+ */
+#define has_capability_noaudit(t, cap) \
+	(security_real_capable_noaudit((t), (cap)) == 0)
 
 extern int capable(int cap);
 

include/linux/security.h

@@ -48,7 +48,8 @@ struct audit_krule;
  * These functions are in security/capability.c and are used
  * as the default capabilities functions
  */
-extern int cap_capable(struct task_struct *tsk, int cap, int audit);
+extern int cap_capable(struct task_struct *tsk, const struct cred *cred,
+		       int cap, int audit);
 extern int cap_settime(struct timespec *ts, struct timezone *tz);
 extern int cap_ptrace_may_access(struct task_struct *child, unsigned int mode);
 extern int cap_ptrace_traceme(struct task_struct *parent);
@@ -1251,9 +1252,12 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  *	@permitted contains the permitted capability set.
  *	Return 0 and update @new if permission is granted.
  * @capable:
- *	Check whether the @tsk process has the @cap capability.
+ *	Check whether the @tsk process has the @cap capability in the indicated
+ *	credentials.
  *	@tsk contains the task_struct for the process.
+ *	@cred contains the credentials to use.
  *	@cap contains the capability <include/linux/capability.h>.
+ *	@audit: Whether to write an audit message or not
  *	Return 0 if the capability is granted for @tsk.
  * @acct:
  *	Check permission before enabling or disabling process accounting.  If
@@ -1346,7 +1350,8 @@ struct security_operations {
 		       const kernel_cap_t *effective,
 		       const kernel_cap_t *inheritable,
 		       const kernel_cap_t *permitted);
-	int (*capable) (struct task_struct *tsk, int cap, int audit);
+	int (*capable) (struct task_struct *tsk, const struct cred *cred,
+			int cap, int audit);
 	int (*acct) (struct file *file);
 	int (*sysctl) (struct ctl_table *table, int op);
 	int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
@@ -1628,8 +1633,9 @@ int security_capset(struct cred *new, const struct cred *old,
 		    const kernel_cap_t *effective,
 		    const kernel_cap_t *inheritable,
 		    const kernel_cap_t *permitted);
-int security_capable(struct task_struct *tsk, int cap);
+int security_capable(int cap);
-int security_capable_noaudit(struct task_struct *tsk, int cap);
+int security_real_capable(struct task_struct *tsk, int cap);
+int security_real_capable_noaudit(struct task_struct *tsk, int cap);
 int security_acct(struct file *file);
 int security_sysctl(struct ctl_table *table, int op);
 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
@@ -1826,14 +1832,31 @@ static inline int security_capset(struct cred *new,
 	return cap_capset(new, old, effective, inheritable, permitted);
 }
 
-static inline int security_capable(struct task_struct *tsk, int cap)
+static inline int security_capable(int cap)
 {
-	return cap_capable(tsk, cap, SECURITY_CAP_AUDIT);
+	return cap_capable(current, current_cred(), cap, SECURITY_CAP_AUDIT);
 }
 
-static inline int security_capable_noaudit(struct task_struct *tsk, int cap)
+static inline int security_real_capable(struct task_struct *tsk, int cap)
 {
-	return cap_capable(tsk, cap, SECURITY_CAP_NOAUDIT);
+	int ret;
+
+	rcu_read_lock();
+	ret = cap_capable(tsk, __task_cred(tsk), cap, SECURITY_CAP_AUDIT);
+	rcu_read_unlock();
+	return ret;
+}
+
+static inline
+int security_real_capable_noaudit(struct task_struct *tsk, int cap)
+{
+	int ret;
+
+	rcu_read_lock();
+	ret = cap_capable(tsk, __task_cred(tsk), cap,
+			       SECURITY_CAP_NOAUDIT);
+	rcu_read_unlock();
+	return ret;
 }
 
 static inline int security_acct(struct file *file)

include/net/cipso_ipv4.h

@@ -131,7 +131,8 @@ extern int cipso_v4_rbm_strictvalid;
  */
 
 #ifdef CONFIG_NETLABEL
-int cipso_v4_doi_add(struct cipso_v4_doi *doi_def);
+int cipso_v4_doi_add(struct cipso_v4_doi *doi_def,
+		     struct netlbl_audit *audit_info);
 void cipso_v4_doi_free(struct cipso_v4_doi *doi_def);
 int cipso_v4_doi_remove(u32 doi, struct netlbl_audit *audit_info);
 struct cipso_v4_doi *cipso_v4_doi_getdef(u32 doi);
@@ -140,7 +141,8 @@ int cipso_v4_doi_walk(u32 *skip_cnt,
 		     int (*callback) (struct cipso_v4_doi *doi_def, void *arg),
 	             void *cb_arg);
 #else
-static inline int cipso_v4_doi_add(struct cipso_v4_doi *doi_def)
+static inline int cipso_v4_doi_add(struct cipso_v4_doi *doi_def,
+				   struct netlbl_audit *audit_info)
 {
 	return -ENOSYS;
 }

include/net/netlabel.h

@@ -33,6 +33,8 @@
 #include <linux/types.h>
 #include <linux/net.h>
 #include <linux/skbuff.h>
+#include <linux/in.h>
+#include <linux/in6.h>
 #include <net/netlink.h>
 #include <asm/atomic.h>
 
@@ -353,13 +355,37 @@ static inline void netlbl_secattr_free(struct netlbl_lsm_secattr *secattr)
 /*
  * LSM configuration operations
  */
-int netlbl_cfg_map_del(const char *domain, struct netlbl_audit *audit_info);
+int netlbl_cfg_map_del(const char *domain,
-int netlbl_cfg_unlbl_add_map(const char *domain,
+		       u16 family,
+		       const void *addr,
+		       const void *mask,
+		       struct netlbl_audit *audit_info);
+int netlbl_cfg_unlbl_map_add(const char *domain,
+			     u16 family,
+			     const void *addr,
+			     const void *mask,
 			     struct netlbl_audit *audit_info);
-int netlbl_cfg_cipsov4_add_map(struct cipso_v4_doi *doi_def,
+int netlbl_cfg_unlbl_static_add(struct net *net,
+				const char *dev_name,
+				const void *addr,
+				const void *mask,
+				u16 family,
+				u32 secid,
+				struct netlbl_audit *audit_info);
+int netlbl_cfg_unlbl_static_del(struct net *net,
+				const char *dev_name,
+				const void *addr,
+				const void *mask,
+				u16 family,
+				struct netlbl_audit *audit_info);
+int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def,
+			   struct netlbl_audit *audit_info);
+void netlbl_cfg_cipsov4_del(u32 doi, struct netlbl_audit *audit_info);
+int netlbl_cfg_cipsov4_map_add(u32 doi,
 			       const char *domain,
+			       const struct in_addr *addr,
+			       const struct in_addr *mask,
 			       struct netlbl_audit *audit_info);
-
 /*
  * LSM security attribute operations
  */
@@ -401,19 +427,62 @@ void netlbl_skbuff_err(struct sk_buff *skb, int error, int gateway);
 void netlbl_cache_invalidate(void);
 int netlbl_cache_add(const struct sk_buff *skb,
 		     const struct netlbl_lsm_secattr *secattr);
+
+/*
+ * Protocol engine operations
+ */
+struct audit_buffer *netlbl_audit_start(int type,
+					struct netlbl_audit *audit_info);
 #else
 static inline int netlbl_cfg_map_del(const char *domain,
+				     u16 family,
+				     const void *addr,
+				     const void *mask,
 				     struct netlbl_audit *audit_info)
 {
 	return -ENOSYS;
 }
-static inline int netlbl_cfg_unlbl_add_map(const char *domain,
+static inline int netlbl_cfg_unlbl_map_add(const char *domain,
+					   u16 family,
+					   void *addr,
+					   void *mask,
 					   struct netlbl_audit *audit_info)
 {
 	return -ENOSYS;
 }
-static inline int netlbl_cfg_cipsov4_add_map(struct cipso_v4_doi *doi_def,
+static inline int netlbl_cfg_unlbl_static_add(struct net *net,
+					      const char *dev_name,
+					      const void *addr,
+					      const void *mask,
+					      u16 family,
+					      u32 secid,
+					      struct netlbl_audit *audit_info)
+{
+	return -ENOSYS;
+}
+static inline int netlbl_cfg_unlbl_static_del(struct net *net,
+					      const char *dev_name,
+					      const void *addr,
+					      const void *mask,
+					      u16 family,
+					      struct netlbl_audit *audit_info)
+{
+	return -ENOSYS;
+}
+static inline int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def,
+					 struct netlbl_audit *audit_info)
+{
+	return -ENOSYS;
+}
+static inline void netlbl_cfg_cipsov4_del(u32 doi,
+					  struct netlbl_audit *audit_info)
+{
+	return;
+}
+static inline int netlbl_cfg_cipsov4_map_add(u32 doi,
 					     const char *domain,
+					     const struct in_addr *addr,
+					     const struct in_addr *mask,
 					     struct netlbl_audit *audit_info)
 {
 	return -ENOSYS;
@@ -495,6 +564,11 @@ static inline int netlbl_cache_add(const struct sk_buff *skb,
 {
 	return 0;
 }
+static inline struct audit_buffer *netlbl_audit_start(int type,
+						struct netlbl_audit *audit_info)
+{
+	return NULL;
+}
 #endif /* CONFIG_NETLABEL */
 
 #endif /* _NETLABEL_H */

kernel/capability.c

@@ -306,7 +306,7 @@ int capable(int cap)
 		BUG();
 	}
 
-	if (has_capability(current, cap)) {
+	if (security_capable(cap) == 0) {
 		current->flags |= PF_SUPERPRIV;
 		return 1;
 	}

net/ipv4/cipso_ipv4.c

@@ -38,6 +38,7 @@
 #include <linux/spinlock.h>
 #include <linux/string.h>
 #include <linux/jhash.h>
+#include <linux/audit.h>
 #include <net/ip.h>
 #include <net/icmp.h>
 #include <net/tcp.h>
@@ -449,6 +450,7 @@ static struct cipso_v4_doi *cipso_v4_doi_search(u32 doi)
 /**
  * cipso_v4_doi_add - Add a new DOI to the CIPSO protocol engine
  * @doi_def: the DOI structure
+ * @audit_info: NetLabel audit information
  *
  * Description:
  * The caller defines a new DOI for use by the CIPSO engine and calls this
@@ -458,50 +460,78 @@ static struct cipso_v4_doi *cipso_v4_doi_search(u32 doi)
  * zero on success and non-zero on failure.
  *
  */
-int cipso_v4_doi_add(struct cipso_v4_doi *doi_def)
+int cipso_v4_doi_add(struct cipso_v4_doi *doi_def,
+		     struct netlbl_audit *audit_info)
 {
+	int ret_val = -EINVAL;
 	u32 iter;
+	u32 doi;
+	u32 doi_type;
+	struct audit_buffer *audit_buf;
+
+	doi = doi_def->doi;
+	doi_type = doi_def->type;
 
 	if (doi_def == NULL || doi_def->doi == CIPSO_V4_DOI_UNKNOWN)
-		return -EINVAL;
+		goto doi_add_return;
 	for (iter = 0; iter < CIPSO_V4_TAG_MAXCNT; iter++) {
 		switch (doi_def->tags[iter]) {
 		case CIPSO_V4_TAG_RBITMAP:
 			break;
 		case CIPSO_V4_TAG_RANGE:
-			if (doi_def->type != CIPSO_V4_MAP_PASS)
-				return -EINVAL;
-			break;
-		case CIPSO_V4_TAG_INVALID:
-			if (iter == 0)
-				return -EINVAL;
-			break;
 		case CIPSO_V4_TAG_ENUM:
 			if (doi_def->type != CIPSO_V4_MAP_PASS)
-				return -EINVAL;
+				goto doi_add_return;
 			break;
 		case CIPSO_V4_TAG_LOCAL:
 			if (doi_def->type != CIPSO_V4_MAP_LOCAL)
-				return -EINVAL;
+				goto doi_add_return;
+			break;
+		case CIPSO_V4_TAG_INVALID:
+			if (iter == 0)
+				goto doi_add_return;
 			break;
 		default:
-			return -EINVAL;
+			goto doi_add_return;
 		}
 	}
 
 	atomic_set(&doi_def->refcount, 1);
 
 	spin_lock(&cipso_v4_doi_list_lock);
-	if (cipso_v4_doi_search(doi_def->doi) != NULL)
+	if (cipso_v4_doi_search(doi_def->doi) != NULL) {
-		goto doi_add_failure;
+		spin_unlock(&cipso_v4_doi_list_lock);
+		ret_val = -EEXIST;
+		goto doi_add_return;
+	}
 	list_add_tail_rcu(&doi_def->list, &cipso_v4_doi_list);
 	spin_unlock(&cipso_v4_doi_list_lock);
+	ret_val = 0;
 
-	return 0;
+doi_add_return:
+	audit_buf = netlbl_audit_start(AUDIT_MAC_CIPSOV4_ADD, audit_info);
+	if (audit_buf != NULL) {
+		const char *type_str;
+		switch (doi_type) {
+		case CIPSO_V4_MAP_TRANS:
+			type_str = "trans";
+			break;
+		case CIPSO_V4_MAP_PASS:
+			type_str = "pass";
+			break;
+		case CIPSO_V4_MAP_LOCAL:
+			type_str = "local";
+			break;
+		default:
+			type_str = "(unknown)";
+		}
+		audit_log_format(audit_buf,
+				 " cipso_doi=%u cipso_type=%s res=%u",
+				 doi, type_str, ret_val == 0 ? 1 : 0);
+		audit_log_end(audit_buf);
+	}
 
-doi_add_failure:
+	return ret_val;
-	spin_unlock(&cipso_v4_doi_list_lock);
-	return -EEXIST;
 }
 
 /**
@@ -559,25 +589,39 @@ static void cipso_v4_doi_free_rcu(struct rcu_head *entry)
  */
 int cipso_v4_doi_remove(u32 doi, struct netlbl_audit *audit_info)
 {
+	int ret_val;
 	struct cipso_v4_doi *doi_def;
+	struct audit_buffer *audit_buf;
 
 	spin_lock(&cipso_v4_doi_list_lock);
 	doi_def = cipso_v4_doi_search(doi);
 	if (doi_def == NULL) {
 		spin_unlock(&cipso_v4_doi_list_lock);
-		return -ENOENT;
+		ret_val = -ENOENT;
+		goto doi_remove_return;
 	}
 	if (!atomic_dec_and_test(&doi_def->refcount)) {
 		spin_unlock(&cipso_v4_doi_list_lock);
-		return -EBUSY;
+		ret_val = -EBUSY;
+		goto doi_remove_return;
 	}
 	list_del_rcu(&doi_def->list);
 	spin_unlock(&cipso_v4_doi_list_lock);
 
 	cipso_v4_cache_invalidate();
 	call_rcu(&doi_def->rcu, cipso_v4_doi_free_rcu);
+	ret_val = 0;
 
-	return 0;
+doi_remove_return:
+	audit_buf = netlbl_audit_start(AUDIT_MAC_CIPSOV4_DEL, audit_info);
+	if (audit_buf != NULL) {
+		audit_log_format(audit_buf,
+				 " cipso_doi=%u res=%u",
+				 doi, ret_val == 0 ? 1 : 0);
+		audit_log_end(audit_buf);
+	}
+
+	return ret_val;
 }
 
 /**

net/netlabel/netlabel_cipso_v4.c

@@ -130,6 +130,7 @@ static int netlbl_cipsov4_add_common(struct genl_info *info,
 /**
  * netlbl_cipsov4_add_std - Adds a CIPSO V4 DOI definition
  * @info: the Generic NETLINK info block
+ * @audit_info: NetLabel audit information
  *
  * Description:
  * Create a new CIPSO_V4_MAP_TRANS DOI definition based on the given ADD
@@ -137,7 +138,8 @@ static int netlbl_cipsov4_add_common(struct genl_info *info,
  * non-zero on error.
  *
  */
-static int netlbl_cipsov4_add_std(struct genl_info *info)
+static int netlbl_cipsov4_add_std(struct genl_info *info,
+				  struct netlbl_audit *audit_info)
 {
 	int ret_val = -EINVAL;
 	struct cipso_v4_doi *doi_def = NULL;
@@ -316,7 +318,7 @@ static int netlbl_cipsov4_add_std(struct genl_info *info)
 			}
 	}
 
-	ret_val = cipso_v4_doi_add(doi_def);
+	ret_val = cipso_v4_doi_add(doi_def, audit_info);
 	if (ret_val != 0)
 		goto add_std_failure;
 	return 0;
@@ -330,6 +332,7 @@ add_std_failure:
 /**
  * netlbl_cipsov4_add_pass - Adds a CIPSO V4 DOI definition
  * @info: the Generic NETLINK info block
+ * @audit_info: NetLabel audit information
  *
  * Description:
  * Create a new CIPSO_V4_MAP_PASS DOI definition based on the given ADD message
@@ -337,7 +340,8 @@ add_std_failure:
  * error.
  *
  */
-static int netlbl_cipsov4_add_pass(struct genl_info *info)
+static int netlbl_cipsov4_add_pass(struct genl_info *info,
+				   struct netlbl_audit *audit_info)
 {
 	int ret_val;
 	struct cipso_v4_doi *doi_def = NULL;
@@ -354,7 +358,7 @@ static int netlbl_cipsov4_add_pass(struct genl_info *info)
 	if (ret_val != 0)
 		goto add_pass_failure;
 
-	ret_val = cipso_v4_doi_add(doi_def);
+	ret_val = cipso_v4_doi_add(doi_def, audit_info);
 	if (ret_val != 0)
 		goto add_pass_failure;
 	return 0;
@@ -367,6 +371,7 @@ add_pass_failure:
 /**
  * netlbl_cipsov4_add_local - Adds a CIPSO V4 DOI definition
  * @info: the Generic NETLINK info block
+ * @audit_info: NetLabel audit information
  *
  * Description:
  * Create a new CIPSO_V4_MAP_LOCAL DOI definition based on the given ADD
@@ -374,7 +379,8 @@ add_pass_failure:
  * non-zero on error.
  *
  */
-static int netlbl_cipsov4_add_local(struct genl_info *info)
+static int netlbl_cipsov4_add_local(struct genl_info *info,
+				    struct netlbl_audit *audit_info)
 {
 	int ret_val;
 	struct cipso_v4_doi *doi_def = NULL;
@@ -391,7 +397,7 @@ static int netlbl_cipsov4_add_local(struct genl_info *info)
 	if (ret_val != 0)
 		goto add_local_failure;
 
-	ret_val = cipso_v4_doi_add(doi_def);
+	ret_val = cipso_v4_doi_add(doi_def, audit_info);
 	if (ret_val != 0)
 		goto add_local_failure;
 	return 0;
@@ -415,48 +421,31 @@ static int netlbl_cipsov4_add(struct sk_buff *skb, struct genl_info *info)
 
 {
 	int ret_val = -EINVAL;
-	u32 type;
-	u32 doi;
 	const char *type_str = "(unknown)";
-	struct audit_buffer *audit_buf;
 	struct netlbl_audit audit_info;
 
 	if (!info->attrs[NLBL_CIPSOV4_A_DOI] ||
 	    !info->attrs[NLBL_CIPSOV4_A_MTYPE])
 		return -EINVAL;
 
-	doi = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_DOI]);
 	netlbl_netlink_auditinfo(skb, &audit_info);
-
+	switch (nla_get_u32(info->attrs[NLBL_CIPSOV4_A_MTYPE])) {
-	type = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_MTYPE]);
-	switch (type) {
 	case CIPSO_V4_MAP_TRANS:
 		type_str = "trans";
-		ret_val = netlbl_cipsov4_add_std(info);
+		ret_val = netlbl_cipsov4_add_std(info, &audit_info);
 		break;
 	case CIPSO_V4_MAP_PASS:
 		type_str = "pass";
-		ret_val = netlbl_cipsov4_add_pass(info);
+		ret_val = netlbl_cipsov4_add_pass(info, &audit_info);
 		break;
 	case CIPSO_V4_MAP_LOCAL:
 		type_str = "local";
-		ret_val = netlbl_cipsov4_add_local(info);
+		ret_val = netlbl_cipsov4_add_local(info, &audit_info);
 		break;
 	}
 	if (ret_val == 0)
 		atomic_inc(&netlabel_mgmt_protocount);
 
-	audit_buf = netlbl_audit_start_common(AUDIT_MAC_CIPSOV4_ADD,
-					      &audit_info);
-	if (audit_buf != NULL) {
-		audit_log_format(audit_buf,
-				 " cipso_doi=%u cipso_type=%s res=%u",
-				 doi,
-				 type_str,
-				 ret_val == 0 ? 1 : 0);
-		audit_log_end(audit_buf);
-	}
-
 	return ret_val;
 }
 
@@ -725,9 +714,7 @@ static int netlbl_cipsov4_remove_cb(struct netlbl_dom_map *entry, void *arg)
 static int netlbl_cipsov4_remove(struct sk_buff *skb, struct genl_info *info)
 {
 	int ret_val = -EINVAL;
-	u32 doi = 0;
 	struct netlbl_domhsh_walk_arg cb_arg;
-	struct audit_buffer *audit_buf;
 	struct netlbl_audit audit_info;
 	u32 skip_bkt = 0;
 	u32 skip_chain = 0;
@@ -735,29 +722,17 @@ static int netlbl_cipsov4_remove(struct sk_buff *skb, struct genl_info *info)
 	if (!info->attrs[NLBL_CIPSOV4_A_DOI])
 		return -EINVAL;
 
-	doi = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_DOI]);
 	netlbl_netlink_auditinfo(skb, &audit_info);
-
+	cb_arg.doi = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_DOI]);
-	cb_arg.doi = doi;
 	cb_arg.audit_info = &audit_info;
 	ret_val = netlbl_domhsh_walk(&skip_bkt, &skip_chain,
 				     netlbl_cipsov4_remove_cb, &cb_arg);
 	if (ret_val == 0 || ret_val == -ENOENT) {
-		ret_val = cipso_v4_doi_remove(doi, &audit_info);
+		ret_val = cipso_v4_doi_remove(cb_arg.doi, &audit_info);
 		if (ret_val == 0)
 			atomic_dec(&netlabel_mgmt_protocount);
 	}
 
-	audit_buf = netlbl_audit_start_common(AUDIT_MAC_CIPSOV4_DEL,
-					      &audit_info);
-	if (audit_buf != NULL) {
-		audit_log_format(audit_buf,
-				 " cipso_doi=%u res=%u",
-				 doi,
-				 ret_val == 0 ? 1 : 0);
-		audit_log_end(audit_buf);
-	}
-
 	return ret_val;
 }
 

net/netlabel/netlabel_domainhash.c

@@ -482,6 +482,73 @@ int netlbl_domhsh_remove_entry(struct netlbl_dom_map *entry,
 	return ret_val;
 }
 
+/**
+ * netlbl_domhsh_remove_af4 - Removes an address selector entry
+ * @domain: the domain
+ * @addr: IPv4 address
+ * @mask: IPv4 address mask
+ * @audit_info: NetLabel audit information
+ *
+ * Description:
+ * Removes an individual address selector from a domain mapping and potentially
+ * the entire mapping if it is empty.  Returns zero on success, negative values
+ * on failure.
+ *
+ */
+int netlbl_domhsh_remove_af4(const char *domain,
+			     const struct in_addr *addr,
+			     const struct in_addr *mask,
+			     struct netlbl_audit *audit_info)
+{
+	struct netlbl_dom_map *entry_map;
+	struct netlbl_af4list *entry_addr;
+	struct netlbl_af4list *iter4;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	struct netlbl_af6list *iter6;
+#endif /* IPv6 */
+	struct netlbl_domaddr4_map *entry;
+
+	rcu_read_lock();
+
+	if (domain)
+		entry_map = netlbl_domhsh_search(domain);
+	else
+		entry_map = netlbl_domhsh_search_def(domain);
+	if (entry_map == NULL || entry_map->type != NETLBL_NLTYPE_ADDRSELECT)
+		goto remove_af4_failure;
+
+	spin_lock(&netlbl_domhsh_lock);
+	entry_addr = netlbl_af4list_remove(addr->s_addr, mask->s_addr,
+					   &entry_map->type_def.addrsel->list4);
+	spin_unlock(&netlbl_domhsh_lock);
+
+	if (entry_addr == NULL)
+		goto remove_af4_failure;
+	netlbl_af4list_foreach_rcu(iter4, &entry_map->type_def.addrsel->list4)
+		goto remove_af4_single_addr;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	netlbl_af6list_foreach_rcu(iter6, &entry_map->type_def.addrsel->list6)
+		goto remove_af4_single_addr;
+#endif /* IPv6 */
+	/* the domain mapping is empty so remove it from the mapping table */
+	netlbl_domhsh_remove_entry(entry_map, audit_info);
+
+remove_af4_single_addr:
+	rcu_read_unlock();
+	/* yick, we can't use call_rcu here because we don't have a rcu head
+	 * pointer but hopefully this should be a rare case so the pause
+	 * shouldn't be a problem */
+	synchronize_rcu();
+	entry = netlbl_domhsh_addr4_entry(entry_addr);
+	cipso_v4_doi_putdef(entry->type_def.cipsov4);
+	kfree(entry);
+	return 0;
+
+remove_af4_failure:
+	rcu_read_unlock();
+	return -ENOENT;
+}
+
 /**
  * netlbl_domhsh_remove - Removes an entry from the domain hash table
  * @domain: the domain to remove

net/netlabel/netlabel_domainhash.h

@@ -90,6 +90,10 @@ int netlbl_domhsh_add_default(struct netlbl_dom_map *entry,
 			      struct netlbl_audit *audit_info);
 int netlbl_domhsh_remove_entry(struct netlbl_dom_map *entry,
 			       struct netlbl_audit *audit_info);
+int netlbl_domhsh_remove_af4(const char *domain,
+			     const struct in_addr *addr,
+			     const struct in_addr *mask,
+			     struct netlbl_audit *audit_info);
 int netlbl_domhsh_remove(const char *domain, struct netlbl_audit *audit_info);
 int netlbl_domhsh_remove_default(struct netlbl_audit *audit_info);
 struct netlbl_dom_map *netlbl_domhsh_getentry(const char *domain);

net/netlabel/netlabel_kapi.c

@@ -31,7 +31,10 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/audit.h>
+#include <linux/in.h>
+#include <linux/in6.h>
 #include <net/ip.h>
+#include <net/ipv6.h>
 #include <net/netlabel.h>
 #include <net/cipso_ipv4.h>
 #include <asm/bug.h>
@@ -42,6 +45,7 @@
 #include "netlabel_cipso_v4.h"
 #include "netlabel_user.h"
 #include "netlabel_mgmt.h"
+#include "netlabel_addrlist.h"
 
 /*
  * Configuration Functions
@@ -50,6 +54,9 @@
 /**
  * netlbl_cfg_map_del - Remove a NetLabel/LSM domain mapping
  * @domain: the domain mapping to remove
+ * @family: address family
+ * @addr: IP address
+ * @mask: IP address mask
  * @audit_info: NetLabel audit information
  *
  * Description:
@@ -58,14 +65,32 @@
  * values on failure.
  *
  */
-int netlbl_cfg_map_del(const char *domain, struct netlbl_audit *audit_info)
+int netlbl_cfg_map_del(const char *domain,
+		       u16 family,
+		       const void *addr,
+		       const void *mask,
+		       struct netlbl_audit *audit_info)
 {
-	return netlbl_domhsh_remove(domain, audit_info);
+	if (addr == NULL && mask == NULL) {
+		return netlbl_domhsh_remove(domain, audit_info);
+	} else if (addr != NULL && mask != NULL) {
+		switch (family) {
+		case AF_INET:
+			return netlbl_domhsh_remove_af4(domain, addr, mask,
+							audit_info);
+		default:
+			return -EPFNOSUPPORT;
+		}
+	} else
+		return -EINVAL;
 }
 
 /**
- * netlbl_cfg_unlbl_add_map - Add an unlabeled NetLabel/LSM domain mapping
+ * netlbl_cfg_unlbl_map_add - Add a new unlabeled mapping
  * @domain: the domain mapping to add
+ * @family: address family
+ * @addr: IP address
+ * @mask: IP address mask
  * @audit_info: NetLabel audit information
  *
  * Description:
@@ -74,11 +99,19 @@ int netlbl_cfg_map_del(const char *domain, struct netlbl_audit *audit_info)
  * negative values on failure.
  *
  */
-int netlbl_cfg_unlbl_add_map(const char *domain,
+int netlbl_cfg_unlbl_map_add(const char *domain,
+			     u16 family,
+			     const void *addr,
+			     const void *mask,
 			     struct netlbl_audit *audit_info)
 {
 	int ret_val = -ENOMEM;
 	struct netlbl_dom_map *entry;
+	struct netlbl_domaddr_map *addrmap = NULL;
+	struct netlbl_domaddr4_map *map4 = NULL;
+	struct netlbl_domaddr6_map *map6 = NULL;
+	const struct in_addr *addr4, *mask4;
+	const struct in6_addr *addr6, *mask6;
 
 	entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
 	if (entry == NULL)
@@ -86,49 +119,225 @@ int netlbl_cfg_unlbl_add_map(const char *domain,
 	if (domain != NULL) {
 		entry->domain = kstrdup(domain, GFP_ATOMIC);
 		if (entry->domain == NULL)
-			goto cfg_unlbl_add_map_failure;
+			goto cfg_unlbl_map_add_failure;
+	}
+
+	if (addr == NULL && mask == NULL)
+		entry->type = NETLBL_NLTYPE_UNLABELED;
+	else if (addr != NULL && mask != NULL) {
+		addrmap = kzalloc(sizeof(*addrmap), GFP_ATOMIC);
+		if (addrmap == NULL)
+			goto cfg_unlbl_map_add_failure;
+		INIT_LIST_HEAD(&addrmap->list4);
+		INIT_LIST_HEAD(&addrmap->list6);
+
+		switch (family) {
+		case AF_INET:
+			addr4 = addr;
+			mask4 = mask;
+			map4 = kzalloc(sizeof(*map4), GFP_ATOMIC);
+			if (map4 == NULL)
+				goto cfg_unlbl_map_add_failure;
+			map4->type = NETLBL_NLTYPE_UNLABELED;
+			map4->list.addr = addr4->s_addr & mask4->s_addr;
+			map4->list.mask = mask4->s_addr;
+			map4->list.valid = 1;
+			ret_val = netlbl_af4list_add(&map4->list,
+						     &addrmap->list4);
+			if (ret_val != 0)
+				goto cfg_unlbl_map_add_failure;
+			break;
+		case AF_INET6:
+			addr6 = addr;
+			mask6 = mask;
+			map6 = kzalloc(sizeof(*map6), GFP_ATOMIC);
+			if (map4 == NULL)
+				goto cfg_unlbl_map_add_failure;
+			map6->type = NETLBL_NLTYPE_UNLABELED;
+			ipv6_addr_copy(&map6->list.addr, addr6);
+			map6->list.addr.s6_addr32[0] &= mask6->s6_addr32[0];
+			map6->list.addr.s6_addr32[1] &= mask6->s6_addr32[1];
+			map6->list.addr.s6_addr32[2] &= mask6->s6_addr32[2];
+			map6->list.addr.s6_addr32[3] &= mask6->s6_addr32[3];
+			ipv6_addr_copy(&map6->list.mask, mask6);
+			map6->list.valid = 1;
+			ret_val = netlbl_af4list_add(&map4->list,
+						     &addrmap->list4);
+			if (ret_val != 0)
+				goto cfg_unlbl_map_add_failure;
+			break;
+		default:
+			goto cfg_unlbl_map_add_failure;
+			break;
+		}
+
+		entry->type_def.addrsel = addrmap;
+		entry->type = NETLBL_NLTYPE_ADDRSELECT;
+	} else {
+		ret_val = -EINVAL;
+		goto cfg_unlbl_map_add_failure;
 	}
-	entry->type = NETLBL_NLTYPE_UNLABELED;
 
 	ret_val = netlbl_domhsh_add(entry, audit_info);
 	if (ret_val != 0)
-		goto cfg_unlbl_add_map_failure;
+		goto cfg_unlbl_map_add_failure;
 
 	return 0;
 
-cfg_unlbl_add_map_failure:
+cfg_unlbl_map_add_failure:
 	if (entry != NULL)
 		kfree(entry->domain);
 	kfree(entry);
+	kfree(addrmap);
+	kfree(map4);
+	kfree(map6);
 	return ret_val;
 }
 
+
 /**
- * netlbl_cfg_cipsov4_add_map - Add a new CIPSOv4 DOI definition and mapping
+ * netlbl_cfg_unlbl_static_add - Adds a new static label
- * @doi_def: the DOI definition
+ * @net: network namespace
- * @domain: the domain mapping to add
+ * @dev_name: interface name
+ * @addr: IP address in network byte order (struct in[6]_addr)
+ * @mask: address mask in network byte order (struct in[6]_addr)
+ * @family: address family
+ * @secid: LSM secid value for the entry
  * @audit_info: NetLabel audit information
  *
  * Description:
- * Add a new CIPSOv4 DOI definition and NetLabel/LSM domain mapping for this
+ * Adds a new NetLabel static label to be used when protocol provided labels
- * new DOI definition to the NetLabel subsystem.  A @domain value of NULL adds
+ * are not present on incoming traffic.  If @dev_name is NULL then the default
- * a new default domain mapping.  Returns zero on success, negative values on
+ * interface will be used.  Returns zero on success, negative values on failure.
- * failure.
  *
  */
-int netlbl_cfg_cipsov4_add_map(struct cipso_v4_doi *doi_def,
+int netlbl_cfg_unlbl_static_add(struct net *net,
+				const char *dev_name,
+				const void *addr,
+				const void *mask,
+				u16 family,
+				u32 secid,
+				struct netlbl_audit *audit_info)
+{
+	u32 addr_len;
+
+	switch (family) {
+	case AF_INET:
+		addr_len = sizeof(struct in_addr);
+		break;
+	case AF_INET6:
+		addr_len = sizeof(struct in6_addr);
+		break;
+	default:
+		return -EPFNOSUPPORT;
+	}
+
+	return netlbl_unlhsh_add(net,
+				 dev_name, addr, mask, addr_len,
+				 secid, audit_info);
+}
+
+/**
+ * netlbl_cfg_unlbl_static_del - Removes an existing static label
+ * @net: network namespace
+ * @dev_name: interface name
+ * @addr: IP address in network byte order (struct in[6]_addr)
+ * @mask: address mask in network byte order (struct in[6]_addr)
+ * @family: address family
+ * @secid: LSM secid value for the entry
+ * @audit_info: NetLabel audit information
+ *
+ * Description:
+ * Removes an existing NetLabel static label used when protocol provided labels
+ * are not present on incoming traffic.  If @dev_name is NULL then the default
+ * interface will be used.  Returns zero on success, negative values on failure.
+ *
+ */
+int netlbl_cfg_unlbl_static_del(struct net *net,
+				const char *dev_name,
+				const void *addr,
+				const void *mask,
+				u16 family,
+				struct netlbl_audit *audit_info)
+{
+	u32 addr_len;
+
+	switch (family) {
+	case AF_INET:
+		addr_len = sizeof(struct in_addr);
+		break;
+	case AF_INET6:
+		addr_len = sizeof(struct in6_addr);
+		break;
+	default:
+		return -EPFNOSUPPORT;
+	}
+
+	return netlbl_unlhsh_remove(net,
+				    dev_name, addr, mask, addr_len,
+				    audit_info);
+}
+
+/**
+ * netlbl_cfg_cipsov4_add - Add a new CIPSOv4 DOI definition
+ * @doi_def: CIPSO DOI definition
+ * @audit_info: NetLabel audit information
+ *
+ * Description:
+ * Add a new CIPSO DOI definition as defined by @doi_def.  Returns zero on
+ * success and negative values on failure.
+ *
+ */
+int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def,
+			   struct netlbl_audit *audit_info)
+{
+	return cipso_v4_doi_add(doi_def, audit_info);
+}
+
+/**
+ * netlbl_cfg_cipsov4_del - Remove an existing CIPSOv4 DOI definition
+ * @doi: CIPSO DOI
+ * @audit_info: NetLabel audit information
+ *
+ * Description:
+ * Remove an existing CIPSO DOI definition matching @doi.  Returns zero on
+ * success and negative values on failure.
+ *
+ */
+void netlbl_cfg_cipsov4_del(u32 doi, struct netlbl_audit *audit_info)
+{
+	cipso_v4_doi_remove(doi, audit_info);
+}
+
+/**
+ * netlbl_cfg_cipsov4_map_add - Add a new CIPSOv4 DOI mapping
+ * @doi: the CIPSO DOI
+ * @domain: the domain mapping to add
+ * @addr: IP address
+ * @mask: IP address mask
+ * @audit_info: NetLabel audit information
+ *
+ * Description:
+ * Add a new NetLabel/LSM domain mapping for the given CIPSO DOI to the NetLabel
+ * subsystem.  A @domain value of NULL adds a new default domain mapping.
+ * Returns zero on success, negative values on failure.
+ *
+ */
+int netlbl_cfg_cipsov4_map_add(u32 doi,
 			       const char *domain,
+			       const struct in_addr *addr,
+			       const struct in_addr *mask,
 			       struct netlbl_audit *audit_info)
 {
 	int ret_val = -ENOMEM;
-	u32 doi;
+	struct cipso_v4_doi *doi_def;
-	u32 doi_type;
 	struct netlbl_dom_map *entry;
-	const char *type_str;
+	struct netlbl_domaddr_map *addrmap = NULL;
-	struct audit_buffer *audit_buf;
+	struct netlbl_domaddr4_map *addrinfo = NULL;
 
-	doi = doi_def->doi;
+	doi_def = cipso_v4_doi_getdef(doi);
-	doi_type = doi_def->type;
+	if (doi_def == NULL)
+		return -ENOENT;
 
 	entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
 	if (entry == NULL)
@@ -136,56 +345,52 @@ int netlbl_cfg_cipsov4_add_map(struct cipso_v4_doi *doi_def,
 	if (domain != NULL) {
 		entry->domain = kstrdup(domain, GFP_ATOMIC);
 		if (entry->domain == NULL)
-			goto cfg_cipsov4_add_map_failure;
+			goto cfg_cipsov4_map_add_failure;
 	}
 
-	ret_val = cipso_v4_doi_add(doi_def);
+	if (addr == NULL && mask == NULL) {
-	if (ret_val != 0)
+		entry->type_def.cipsov4 = doi_def;
-		goto cfg_cipsov4_add_map_failure_remove_doi;
+		entry->type = NETLBL_NLTYPE_CIPSOV4;
-	entry->type = NETLBL_NLTYPE_CIPSOV4;
+	} else if (addr != NULL && mask != NULL) {
-	entry->type_def.cipsov4 = cipso_v4_doi_getdef(doi);
+		addrmap = kzalloc(sizeof(*addrmap), GFP_ATOMIC);
-	if (entry->type_def.cipsov4 == NULL) {
+		if (addrmap == NULL)
-		ret_val = -ENOENT;
+			goto cfg_cipsov4_map_add_failure;
-		goto cfg_cipsov4_add_map_failure_remove_doi;
+		INIT_LIST_HEAD(&addrmap->list4);
+		INIT_LIST_HEAD(&addrmap->list6);
+
+		addrinfo = kzalloc(sizeof(*addrinfo), GFP_ATOMIC);
+		if (addrinfo == NULL)
+			goto cfg_cipsov4_map_add_failure;
+		addrinfo->type_def.cipsov4 = doi_def;
+		addrinfo->type = NETLBL_NLTYPE_CIPSOV4;
+		addrinfo->list.addr = addr->s_addr & mask->s_addr;
+		addrinfo->list.mask = mask->s_addr;
+		addrinfo->list.valid = 1;
+		ret_val = netlbl_af4list_add(&addrinfo->list, &addrmap->list4);
+		if (ret_val != 0)
+			goto cfg_cipsov4_map_add_failure;
+
+		entry->type_def.addrsel = addrmap;
+		entry->type = NETLBL_NLTYPE_ADDRSELECT;
+	} else {
+		ret_val = -EINVAL;
+		goto cfg_cipsov4_map_add_failure;
 	}
+
 	ret_val = netlbl_domhsh_add(entry, audit_info);
 	if (ret_val != 0)
-		goto cfg_cipsov4_add_map_failure_release_doi;
+		goto cfg_cipsov4_map_add_failure;
 
-cfg_cipsov4_add_map_return:
+	return 0;
-	audit_buf = netlbl_audit_start_common(AUDIT_MAC_CIPSOV4_ADD,
-					      audit_info);
-	if (audit_buf != NULL) {
-		switch (doi_type) {
-		case CIPSO_V4_MAP_TRANS:
-			type_str = "trans";
-			break;
-		case CIPSO_V4_MAP_PASS:
-			type_str = "pass";
-			break;
-		case CIPSO_V4_MAP_LOCAL:
-			type_str = "local";
-			break;
-		default:
-			type_str = "(unknown)";
-		}
-		audit_log_format(audit_buf,
-				 " cipso_doi=%u cipso_type=%s res=%u",
-				 doi, type_str, ret_val == 0 ? 1 : 0);
-		audit_log_end(audit_buf);
-	}
 
-	return ret_val;
+cfg_cipsov4_map_add_failure:
-
-cfg_cipsov4_add_map_failure_release_doi:
 	cipso_v4_doi_putdef(doi_def);
-cfg_cipsov4_add_map_failure_remove_doi:
-	cipso_v4_doi_remove(doi, audit_info);
-cfg_cipsov4_add_map_failure:
 	if (entry != NULL)
 		kfree(entry->domain);
 	kfree(entry);
-	goto cfg_cipsov4_add_map_return;
+	kfree(addrmap);
+	kfree(addrinfo);
+	return ret_val;
 }
 
 /*
@@ -690,6 +895,28 @@ int netlbl_cache_add(const struct sk_buff *skb,
 	return -ENOMSG;
 }
 
+/*
+ * Protocol Engine Functions
+ */
+
+/**
+ * netlbl_audit_start - Start an audit message
+ * @type: audit message type
+ * @audit_info: NetLabel audit information
+ *
+ * Description:
+ * Start an audit message using the type specified in @type and fill the audit
+ * message with some fields common to all NetLabel audit messages.  This
+ * function should only be used by protocol engines, not LSMs.  Returns a
+ * pointer to the audit buffer on success, NULL on failure.
+ *
+ */
+struct audit_buffer *netlbl_audit_start(int type,
+					struct netlbl_audit *audit_info)
+{
+	return netlbl_audit_start_common(type, audit_info);
+}
+
 /*
  * Setup Functions
  */

net/netlabel/netlabel_unlabeled.c

@@ -450,13 +450,13 @@ add_iface_failure:
  * success, negative values on failure.
  *
  */
-static int netlbl_unlhsh_add(struct net *net,
+int netlbl_unlhsh_add(struct net *net,
-			     const char *dev_name,
+		      const char *dev_name,
-			     const void *addr,
+		      const void *addr,
-			     const void *mask,
+		      const void *mask,
-			     u32 addr_len,
+		      u32 addr_len,
-			     u32 secid,
+		      u32 secid,
-			     struct netlbl_audit *audit_info)
+		      struct netlbl_audit *audit_info)
 {
 	int ret_val;
 	int ifindex;
@@ -720,12 +720,12 @@ unlhsh_condremove_failure:
  * Returns zero on success, negative values on failure.
  *
  */
-static int netlbl_unlhsh_remove(struct net *net,
+int netlbl_unlhsh_remove(struct net *net,
-				const char *dev_name,
+			 const char *dev_name,
-				const void *addr,
+			 const void *addr,
-				const void *mask,
+			 const void *mask,
-				u32 addr_len,
+			 u32 addr_len,
-				struct netlbl_audit *audit_info)
+			 struct netlbl_audit *audit_info)
 {
 	int ret_val;
 	struct net_device *dev;

net/netlabel/netlabel_unlabeled.h

@@ -221,6 +221,21 @@ int netlbl_unlabel_genl_init(void);
 /* General Unlabeled init function */
 int netlbl_unlabel_init(u32 size);
 
+/* Static/Fallback label management functions */
+int netlbl_unlhsh_add(struct net *net,
+		      const char *dev_name,
+		      const void *addr,
+		      const void *mask,
+		      u32 addr_len,
+		      u32 secid,
+		      struct netlbl_audit *audit_info);
+int netlbl_unlhsh_remove(struct net *net,
+			 const char *dev_name,
+			 const void *addr,
+			 const void *mask,
+			 u32 addr_len,
+			 struct netlbl_audit *audit_info);
+
 /* Process Unlabeled incoming network packets */
 int netlbl_unlabel_getattr(const struct sk_buff *skb,
 			   u16 family,

security/commoncap.c

@@ -45,26 +45,22 @@ EXPORT_SYMBOL(cap_netlink_recv);
 /**
  * cap_capable - Determine whether a task has a particular effective capability
  * @tsk: The task to query
+ * @cred: The credentials to use
  * @cap: The capability to check for
  * @audit: Whether to write an audit message or not
  *
  * Determine whether the nominated task has the specified capability amongst
  * its effective set, returning 0 if it does, -ve if it does not.
  *
- * NOTE WELL: cap_capable() cannot be used like the kernel's capable()
+ * NOTE WELL: cap_has_capability() cannot be used like the kernel's capable()
- * function.  That is, it has the reverse semantics: cap_capable() returns 0
+ * and has_capability() functions.  That is, it has the reverse semantics:
- * when a task has a capability, but the kernel's capable() returns 1 for this
+ * cap_has_capability() returns 0 when a task has a capability, but the
- * case.
+ * kernel's capable() and has_capability() returns 1 for this case.
  */
-int cap_capable(struct task_struct *tsk, int cap, int audit)
+int cap_capable(struct task_struct *tsk, const struct cred *cred, int cap,
+		int audit)
 {
-	__u32 cap_raised;
+	return cap_raised(cred->cap_effective, cap) ? 0 : -EPERM;
-
-	/* Derived from include/linux/sched.h:capable. */
-	rcu_read_lock();
-	cap_raised = cap_raised(__task_cred(tsk)->cap_effective, cap);
-	rcu_read_unlock();
-	return cap_raised ? 0 : -EPERM;
 }
 
 /**
@@ -160,7 +156,8 @@ static inline int cap_inh_is_capped(void)
 	/* they are so limited unless the current task has the CAP_SETPCAP
 	 * capability
 	 */
-	if (cap_capable(current, CAP_SETPCAP, SECURITY_CAP_AUDIT) == 0)
+	if (cap_capable(current, current_cred(), CAP_SETPCAP,
+			SECURITY_CAP_AUDIT) == 0)
 		return 0;
 #endif
 	return 1;
@@ -869,7 +866,8 @@ int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 		     & (new->securebits ^ arg2))			/*[1]*/
 		    || ((new->securebits & SECURE_ALL_LOCKS & ~arg2))	/*[2]*/
 		    || (arg2 & ~(SECURE_ALL_LOCKS | SECURE_ALL_BITS))	/*[3]*/
-		    || (cap_capable(current, CAP_SETPCAP, SECURITY_CAP_AUDIT) != 0) /*[4]*/
+		    || (cap_capable(current, current_cred(), CAP_SETPCAP,
+				    SECURITY_CAP_AUDIT) != 0)		/*[4]*/
 			/*
 			 * [1] no changing of bits that are locked
 			 * [2] no unlocking of locks
@@ -950,7 +948,8 @@ int cap_vm_enough_memory(struct mm_struct *mm, long pages)
 {
 	int cap_sys_admin = 0;
 
-	if (cap_capable(current, CAP_SYS_ADMIN, SECURITY_CAP_NOAUDIT) == 0)
+	if (cap_capable(current, current_cred(), CAP_SYS_ADMIN,
+			SECURITY_CAP_NOAUDIT) == 0)
 		cap_sys_admin = 1;
 	return __vm_enough_memory(mm, pages, cap_sys_admin);
 }

security/keys/keyctl.c

@@ -1294,7 +1294,7 @@ asmlinkage long sys_keyctl(int option, unsigned long arg2, unsigned long arg3,
 
 	case KEYCTL_GET_SECURITY:
 		return keyctl_get_security((key_serial_t) arg2,
-					   (char *) arg3,
+					   (char __user *) arg3,
 					   (size_t) arg4);
 
 	default:

security/security.c

@@ -154,14 +154,32 @@ int security_capset(struct cred *new, const struct cred *old,
 				    effective, inheritable, permitted);
 }
 
-int security_capable(struct task_struct *tsk, int cap)
+int security_capable(int cap)
 {
-	return security_ops->capable(tsk, cap, SECURITY_CAP_AUDIT);
+	return security_ops->capable(current, current_cred(), cap,
+				     SECURITY_CAP_AUDIT);
 }
 
-int security_capable_noaudit(struct task_struct *tsk, int cap)
+int security_real_capable(struct task_struct *tsk, int cap)
 {
-	return security_ops->capable(tsk, cap, SECURITY_CAP_NOAUDIT);
+	const struct cred *cred;
+	int ret;
+
+	cred = get_task_cred(tsk);
+	ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_AUDIT);
+	put_cred(cred);
+	return ret;
+}
+
+int security_real_capable_noaudit(struct task_struct *tsk, int cap)
+{
+	const struct cred *cred;
+	int ret;
+
+	cred = get_task_cred(tsk);
+	ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_NOAUDIT);
+	put_cred(cred);
+	return ret;
 }
 
 int security_acct(struct file *file)

security/selinux/Kconfig

@@ -94,33 +94,6 @@ config SECURITY_SELINUX_CHECKREQPROT_VALUE
 
 	  If you are unsure how to answer this question, answer 1.
 
-config SECURITY_SELINUX_ENABLE_SECMARK_DEFAULT
-	bool "NSA SELinux enable new secmark network controls by default"
-	depends on SECURITY_SELINUX
-	default n
-	help
-	  This option determines whether the new secmark-based network
-	  controls will be enabled by default.  If not, the old internal
-	  per-packet controls will be enabled by default, preserving
-	  old behavior.
-
-	  If you enable the new controls, you will need updated
-	  SELinux userspace libraries, tools and policy.  Typically,
-	  your distribution will provide these and enable the new controls
-	  in the kernel they also distribute.
-
-	  Note that this option can be overridden at boot with the
-	  selinux_compat_net parameter, and after boot via
-	  /selinux/compat_net.  See Documentation/kernel-parameters.txt
-	  for details on this parameter.
-
-	  If you enable the new network controls, you will likely
-	  also require the SECMARK and CONNSECMARK targets, as
-	  well as any conntrack helpers for protocols which you
-	  wish to control.
-
-	  If you are unsure what to do here, select N.
-
 config SECURITY_SELINUX_POLICYDB_VERSION_MAX
 	bool "NSA SELinux maximum supported policy format version"
 	depends on SECURITY_SELINUX

security/selinux/avc.c

@@ -53,18 +53,20 @@ static const char *class_to_string[] = {
 #undef S_
 
 static const struct av_inherit av_inherit[] = {
-#define S_(c, i, b) { c, common_##i##_perm_to_string, b },
+#define S_(c, i, b) {	.tclass = c,\
+			.common_pts = common_##i##_perm_to_string,\
+			.common_base =  b },
 #include "av_inherit.h"
 #undef S_
 };
 
 const struct selinux_class_perm selinux_class_perm = {
-	av_perm_to_string,
+	.av_perm_to_string = av_perm_to_string,
-	ARRAY_SIZE(av_perm_to_string),
+	.av_pts_len = ARRAY_SIZE(av_perm_to_string),
-	class_to_string,
+	.class_to_string = class_to_string,
-	ARRAY_SIZE(class_to_string),
+	.cts_len = ARRAY_SIZE(class_to_string),
-	av_inherit,
+	.av_inherit = av_inherit,
-	ARRAY_SIZE(av_inherit)
+	.av_inherit_len = ARRAY_SIZE(av_inherit)
 };
 
 #define AVC_CACHE_SLOTS			512

security/selinux/hooks.c

@@ -1433,12 +1433,13 @@ static int current_has_perm(const struct task_struct *tsk,
 
 /* Check whether a task is allowed to use a capability. */
 static int task_has_capability(struct task_struct *tsk,
+			       const struct cred *cred,
 			       int cap, int audit)
 {
 	struct avc_audit_data ad;
 	struct av_decision avd;
 	u16 sclass;
-	u32 sid = task_sid(tsk);
+	u32 sid = cred_sid(cred);
 	u32 av = CAP_TO_MASK(cap);
 	int rc;
 
@@ -1865,15 +1866,16 @@ static int selinux_capset(struct cred *new, const struct cred *old,
 	return cred_has_perm(old, new, PROCESS__SETCAP);
 }
 
-static int selinux_capable(struct task_struct *tsk, int cap, int audit)
+static int selinux_capable(struct task_struct *tsk, const struct cred *cred,
+			   int cap, int audit)
 {
 	int rc;
 
-	rc = secondary_ops->capable(tsk, cap, audit);
+	rc = secondary_ops->capable(tsk, cred, cap, audit);
 	if (rc)
 		return rc;
 
-	return task_has_capability(tsk, cap, audit);
+	return task_has_capability(tsk, cred, cap, audit);
 }
 
 static int selinux_sysctl_get_sid(ctl_table *table, u16 tclass, u32 *sid)
@@ -2037,7 +2039,8 @@ static int selinux_vm_enough_memory(struct mm_struct *mm, long pages)
 {
 	int rc, cap_sys_admin = 0;
 
-	rc = selinux_capable(current, CAP_SYS_ADMIN, SECURITY_CAP_NOAUDIT);
+	rc = selinux_capable(current, current_cred(), CAP_SYS_ADMIN,
+			     SECURITY_CAP_NOAUDIT);
 	if (rc == 0)
 		cap_sys_admin = 1;
 
@@ -2880,7 +2883,8 @@ static int selinux_inode_getsecurity(const struct inode *inode, const char *name
 	 * and lack of permission just means that we fall back to the
 	 * in-core context value, not a denial.
 	 */
-	error = selinux_capable(current, CAP_MAC_ADMIN, SECURITY_CAP_NOAUDIT);
+	error = selinux_capable(current, current_cred(), CAP_MAC_ADMIN,
+				SECURITY_CAP_NOAUDIT);
 	if (!error)
 		error = security_sid_to_context_force(isec->sid, &context,
 						      &size);
@@ -4185,7 +4189,7 @@ static int selinux_sock_rcv_skb_iptables_compat(struct sock *sk,
 static int selinux_sock_rcv_skb_compat(struct sock *sk, struct sk_buff *skb,
 				       u16 family)
 {
-	int err;
+	int err = 0;
 	struct sk_security_struct *sksec = sk->sk_security;
 	u32 peer_sid;
 	u32 sk_sid = sksec->sid;
@@ -4202,7 +4206,7 @@ static int selinux_sock_rcv_skb_compat(struct sock *sk, struct sk_buff *skb,
 	if (selinux_compat_net)
 		err = selinux_sock_rcv_skb_iptables_compat(sk, skb, &ad,
 							   family, addrp);
-	else
+	else if (selinux_secmark_enabled())
 		err = avc_has_perm(sk_sid, skb->secmark, SECCLASS_PACKET,
 				   PACKET__RECV, &ad);
 	if (err)
@@ -4705,7 +4709,7 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb,
 		if (selinux_ip_postroute_iptables_compat(skb->sk, ifindex,
 							 &ad, family, addrp))
 			return NF_DROP;
-	} else {
+	} else if (selinux_secmark_enabled()) {
 		if (avc_has_perm(sksec->sid, skb->secmark,
 				 SECCLASS_PACKET, PACKET__SEND, &ad))
 			return NF_DROP;

security/selinux/include/avc_ss.h

@@ -17,16 +17,16 @@ struct av_perm_to_string {
 };
 
 struct av_inherit {
-	u16 tclass;
 	const char **common_pts;
 	u32 common_base;
+	u16 tclass;
 };
 
 struct selinux_class_perm {
 	const struct av_perm_to_string *av_perm_to_string;
 	u32 av_pts_len;
-	const char **class_to_string;
 	u32 cts_len;
+	const char **class_to_string;
 	const struct av_inherit *av_inherit;
 	u32 av_inherit_len;
 };