Merge branch 'next' of git://selinuxproject.org/~jmorris/linux-security

* 'next' of git://selinuxproject.org/~jmorris/linux-security: (95 commits)
  TOMOYO: Fix incomplete read after seek.
  Smack: allow to access /smack/access as normal user
  TOMOYO: Fix unused kernel config option.
  Smack: fix: invalid length set for the result of /smack/access
  Smack: compilation fix
  Smack: fix for /smack/access output, use string instead of byte
  Smack: domain transition protections (v3)
  Smack: Provide information for UDS getsockopt(SO_PEERCRED)
  Smack: Clean up comments
  Smack: Repair processing of fcntl
  Smack: Rule list lookup performance
  Smack: check permissions from user space (v2)
  TOMOYO: Fix quota and garbage collector.
  TOMOYO: Remove redundant tasklist_lock.
  TOMOYO: Fix domain transition failure warning.
  TOMOYO: Remove tomoyo_policy_memory_lock spinlock.
  TOMOYO: Simplify garbage collector.
  TOMOYO: Fix make namespacecheck warnings.
  target: check hex2bin result
  encrypted-keys: check hex2bin result
  ...

17 files changed, 2128 insertions, 454 deletions

diff --git a/security/tomoyo/Kconfig b/security/tomoyo/Kconfig
index 7c7f8c16c10f..8eb779b9d77f 100644
--- a/security/tomoyo/Kconfig
+++ b/security/tomoyo/Kconfig
@@ -1,8 +1,10 @@
 config SECURITY_TOMOYO
 	bool "TOMOYO Linux Support"
 	depends on SECURITY
+	depends on NET
 	select SECURITYFS
 	select SECURITY_PATH
+	select SECURITY_NETWORK
 	default n
 	help
 	  This selects TOMOYO Linux, pathname-based access control.
diff --git a/security/tomoyo/Makefile b/security/tomoyo/Makefile
index 95278b71fc21..56a0c7be409e 100644
--- a/security/tomoyo/Makefile
+++ b/security/tomoyo/Makefile
@@ -1,4 +1,4 @@
-obj-y = audit.o common.o condition.o domain.o file.o gc.o group.o load_policy.o memory.o mount.o realpath.o securityfs_if.o tomoyo.o util.o
+obj-y = audit.o common.o condition.o domain.o environ.o file.o gc.o group.o load_policy.o memory.o mount.o network.o realpath.o securityfs_if.o tomoyo.o util.o
 
 $(obj)/policy/profile.conf:
 	@mkdir -p $(obj)/policy/
@@ -27,7 +27,7 @@ $(obj)/policy/stat.conf:
 	@touch $@
 
 $(obj)/builtin-policy.h: $(obj)/policy/profile.conf $(obj)/policy/exception_policy.conf $(obj)/policy/domain_policy.conf $(obj)/policy/manager.conf $(obj)/policy/stat.conf
-	@echo Generating built-in policy for TOMOYO 2.4.x.
+	@echo Generating built-in policy for TOMOYO 2.5.x.
 	@echo "static char tomoyo_builtin_profile[] __initdata =" > $@.tmp
 	@sed -e 's/\\/\\\\/g' -e 's/\"/\\"/g' -e 's/\(.*\)/"\1\\n"/' < $(obj)/policy/profile.conf >> $@.tmp
 	@echo "\"\";" >> $@.tmp
diff --git a/security/tomoyo/audit.c b/security/tomoyo/audit.c
index 5dbb1f7617c0..075c3a6d1649 100644
--- a/security/tomoyo/audit.c
+++ b/security/tomoyo/audit.c
@@ -313,6 +313,7 @@ static unsigned int tomoyo_log_count;
  */
 static bool tomoyo_get_audit(const struct tomoyo_policy_namespace *ns,
 			     const u8 profile, const u8 index,
+			     const struct tomoyo_acl_info *matched_acl,
 			     const bool is_granted)
 {
 	u8 mode;
@@ -324,6 +325,9 @@ static bool tomoyo_get_audit(const struct tomoyo_policy_namespace *ns,
 	p = tomoyo_profile(ns, profile);
 	if (tomoyo_log_count >= p->pref[TOMOYO_PREF_MAX_AUDIT_LOG])
 		return false;
+	if (is_granted && matched_acl && matched_acl->cond &&
+	    matched_acl->cond->grant_log != TOMOYO_GRANTLOG_AUTO)
+		return matched_acl->cond->grant_log == TOMOYO_GRANTLOG_YES;
 	mode = p->config[index];
 	if (mode == TOMOYO_CONFIG_USE_DEFAULT)
 		mode = p->config[category];
@@ -350,7 +354,8 @@ void tomoyo_write_log2(struct tomoyo_request_info *r, int len, const char *fmt,
 	char *buf;
 	struct tomoyo_log *entry;
 	bool quota_exceeded = false;
-	if (!tomoyo_get_audit(r->domain->ns, r->profile, r->type, r->granted))
+	if (!tomoyo_get_audit(r->domain->ns, r->profile, r->type,
+			      r->matched_acl, r->granted))
 		goto out;
 	buf = tomoyo_init_log(r, len, fmt, args);
 	if (!buf)
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index 2e43aec1c36b..150911c7ff08 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -20,6 +20,7 @@ const char * const tomoyo_mode[TOMOYO_CONFIG_MAX_MODE] = {
 /* String table for /sys/kernel/security/tomoyo/profile */
 const char * const tomoyo_mac_keywords[TOMOYO_MAX_MAC_INDEX
 				       + TOMOYO_MAX_MAC_CATEGORY_INDEX] = {
+	/* CONFIG::file group */
 	[TOMOYO_MAC_FILE_EXECUTE]    = "execute",
 	[TOMOYO_MAC_FILE_OPEN]       = "open",
 	[TOMOYO_MAC_FILE_CREATE]     = "create",
@@ -43,7 +44,28 @@ const char * const tomoyo_mac_keywords[TOMOYO_MAX_MAC_INDEX
 	[TOMOYO_MAC_FILE_MOUNT]      = "mount",
 	[TOMOYO_MAC_FILE_UMOUNT]     = "unmount",
 	[TOMOYO_MAC_FILE_PIVOT_ROOT] = "pivot_root",
+	/* CONFIG::network group */
+	[TOMOYO_MAC_NETWORK_INET_STREAM_BIND]       = "inet_stream_bind",
+	[TOMOYO_MAC_NETWORK_INET_STREAM_LISTEN]     = "inet_stream_listen",
+	[TOMOYO_MAC_NETWORK_INET_STREAM_CONNECT]    = "inet_stream_connect",
+	[TOMOYO_MAC_NETWORK_INET_DGRAM_BIND]        = "inet_dgram_bind",
+	[TOMOYO_MAC_NETWORK_INET_DGRAM_SEND]        = "inet_dgram_send",
+	[TOMOYO_MAC_NETWORK_INET_RAW_BIND]          = "inet_raw_bind",
+	[TOMOYO_MAC_NETWORK_INET_RAW_SEND]          = "inet_raw_send",
+	[TOMOYO_MAC_NETWORK_UNIX_STREAM_BIND]       = "unix_stream_bind",
+	[TOMOYO_MAC_NETWORK_UNIX_STREAM_LISTEN]     = "unix_stream_listen",
+	[TOMOYO_MAC_NETWORK_UNIX_STREAM_CONNECT]    = "unix_stream_connect",
+	[TOMOYO_MAC_NETWORK_UNIX_DGRAM_BIND]        = "unix_dgram_bind",
+	[TOMOYO_MAC_NETWORK_UNIX_DGRAM_SEND]        = "unix_dgram_send",
+	[TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_BIND]    = "unix_seqpacket_bind",
+	[TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_LISTEN]  = "unix_seqpacket_listen",
+	[TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_CONNECT] = "unix_seqpacket_connect",
+	/* CONFIG::misc group */
+	[TOMOYO_MAC_ENVIRON] = "env",
+	/* CONFIG group */
 	[TOMOYO_MAX_MAC_INDEX + TOMOYO_MAC_CATEGORY_FILE] = "file",
+	[TOMOYO_MAX_MAC_INDEX + TOMOYO_MAC_CATEGORY_NETWORK] = "network",
+	[TOMOYO_MAX_MAC_INDEX + TOMOYO_MAC_CATEGORY_MISC] = "misc",
 };
 
 /* String table for conditions. */
@@ -130,10 +152,20 @@ const char * const tomoyo_path_keyword[TOMOYO_MAX_PATH_OPERATION] = {
 	[TOMOYO_TYPE_UMOUNT]     = "unmount",
 };
 
+/* String table for socket's operation. */
+const char * const tomoyo_socket_keyword[TOMOYO_MAX_NETWORK_OPERATION] = {
+	[TOMOYO_NETWORK_BIND]    = "bind",
+	[TOMOYO_NETWORK_LISTEN]  = "listen",
+	[TOMOYO_NETWORK_CONNECT] = "connect",
+	[TOMOYO_NETWORK_SEND]    = "send",
+};
+
 /* String table for categories. */
 static const char * const tomoyo_category_keywords
 [TOMOYO_MAX_MAC_CATEGORY_INDEX] = {
-	[TOMOYO_MAC_CATEGORY_FILE]       = "file",
+	[TOMOYO_MAC_CATEGORY_FILE]    = "file",
+	[TOMOYO_MAC_CATEGORY_NETWORK] = "network",
+	[TOMOYO_MAC_CATEGORY_MISC]    = "misc",
 };
 
 /* Permit policy management by non-root user? */
@@ -230,13 +262,17 @@ static void tomoyo_set_string(struct tomoyo_io_buffer *head, const char *string)
 		WARN_ON(1);
 }
 
+static void tomoyo_io_printf(struct tomoyo_io_buffer *head, const char *fmt,
+			     ...) __printf(2, 3);
+
 /**
  * tomoyo_io_printf - printf() to "struct tomoyo_io_buffer" structure.
  *
  * @head: Pointer to "struct tomoyo_io_buffer".
  * @fmt:  The printf()'s format string, followed by parameters.
  */
-void tomoyo_io_printf(struct tomoyo_io_buffer *head, const char *fmt, ...)
+static void tomoyo_io_printf(struct tomoyo_io_buffer *head, const char *fmt,
+			     ...)
 {
 	va_list args;
 	size_t len;
@@ -313,7 +349,7 @@ void tomoyo_init_policy_namespace(struct tomoyo_policy_namespace *ns)
 		INIT_LIST_HEAD(&ns->group_list[idx]);
 	for (idx = 0; idx < TOMOYO_MAX_POLICY; idx++)
 		INIT_LIST_HEAD(&ns->policy_list[idx]);
-	ns->profile_version = 20100903;
+	ns->profile_version = 20110903;
 	tomoyo_namespace_enabled = !list_empty(&tomoyo_namespace_list);
 	list_add_tail_rcu(&ns->namespace_list, &tomoyo_namespace_list);
 }
@@ -466,8 +502,10 @@ static struct tomoyo_profile *tomoyo_assign_profile
 			TOMOYO_CONFIG_WANT_REJECT_LOG;
 		memset(ptr->config, TOMOYO_CONFIG_USE_DEFAULT,
 		       sizeof(ptr->config));
-		ptr->pref[TOMOYO_PREF_MAX_AUDIT_LOG] = 1024;
-		ptr->pref[TOMOYO_PREF_MAX_LEARNING_ENTRY] = 2048;
+		ptr->pref[TOMOYO_PREF_MAX_AUDIT_LOG] =
+			CONFIG_SECURITY_TOMOYO_MAX_AUDIT_LOG;
+		ptr->pref[TOMOYO_PREF_MAX_LEARNING_ENTRY] =
+			CONFIG_SECURITY_TOMOYO_MAX_ACCEPT_ENTRY;
 		mb(); /* Avoid out-of-order execution. */
 		ns->profile_ptr[profile] = ptr;
 		entry = NULL;
@@ -951,14 +989,12 @@ static bool tomoyo_select_domain(struct tomoyo_io_buffer *head,
 	    (global_pid = true, sscanf(data, "global-pid=%u", &pid) == 1)) {
 		struct task_struct *p;
 		rcu_read_lock();
-		read_lock(&tasklist_lock);
 		if (global_pid)
 			p = find_task_by_pid_ns(pid, &init_pid_ns);
 		else
 			p = find_task_by_vpid(pid);
 		if (p)
 			domain = tomoyo_real_domain(p);
-		read_unlock(&tasklist_lock);
 		rcu_read_unlock();
 	} else if (!strncmp(data, "domain=", 7)) {
 		if (tomoyo_domain_def(data + 7))
@@ -982,6 +1018,48 @@ static bool tomoyo_select_domain(struct tomoyo_io_buffer *head,
 }
 
 /**
+ * tomoyo_same_task_acl - Check for duplicated "struct tomoyo_task_acl" entry.
+ *
+ * @a: Pointer to "struct tomoyo_acl_info".
+ * @b: Pointer to "struct tomoyo_acl_info".
+ *
+ * Returns true if @a == @b, false otherwise.
+ */
+static bool tomoyo_same_task_acl(const struct tomoyo_acl_info *a,
+			      const struct tomoyo_acl_info *b)
+{
+	const struct tomoyo_task_acl *p1 = container_of(a, typeof(*p1), head);
+	const struct tomoyo_task_acl *p2 = container_of(b, typeof(*p2), head);
+	return p1->domainname == p2->domainname;
+}
+
+/**
+ * tomoyo_write_task - Update task related list.
+ *
+ * @param: Pointer to "struct tomoyo_acl_param".
+ *
+ * Returns 0 on success, negative value otherwise.
+ *
+ * Caller holds tomoyo_read_lock().
+ */
+static int tomoyo_write_task(struct tomoyo_acl_param *param)
+{
+	int error = -EINVAL;
+	if (tomoyo_str_starts(&param->data, "manual_domain_transition ")) {
+		struct tomoyo_task_acl e = {
+			.head.type = TOMOYO_TYPE_MANUAL_TASK_ACL,
+			.domainname = tomoyo_get_domainname(param),
+		};
+		if (e.domainname)
+			error = tomoyo_update_domain(&e.head, sizeof(e), param,
+						     tomoyo_same_task_acl,
+						     NULL);
+		tomoyo_put_name(e.domainname);
+	}
+	return error;
+}
+
+/**
  * tomoyo_delete_domain - Delete a domain.
  *
  * @domainname: The name of domain.
@@ -1039,11 +1117,16 @@ static int tomoyo_write_domain2(struct tomoyo_policy_namespace *ns,
 	static const struct {
 		const char *keyword;
 		int (*write) (struct tomoyo_acl_param *);
-	} tomoyo_callback[1] = {
+	} tomoyo_callback[5] = {
 		{ "file ", tomoyo_write_file },
+		{ "network inet ", tomoyo_write_inet_network },
+		{ "network unix ", tomoyo_write_unix_network },
+		{ "misc ", tomoyo_write_misc },
+		{ "task ", tomoyo_write_task },
 	};
 	u8 i;
-	for (i = 0; i < 1; i++) {
+
+	for (i = 0; i < ARRAY_SIZE(tomoyo_callback); i++) {
 		if (!tomoyo_str_starts(&param.data,
 				       tomoyo_callback[i].keyword))
 			continue;
@@ -1127,6 +1210,10 @@ static bool tomoyo_print_condition(struct tomoyo_io_buffer *head,
 	case 0:
 		head->r.cond_index = 0;
 		head->r.cond_step++;
+		if (cond->transit) {
+			tomoyo_set_space(head);
+			tomoyo_set_string(head, cond->transit->name);
+		}
 		/* fall through */
 	case 1:
 		{
@@ -1239,6 +1326,10 @@ static bool tomoyo_print_condition(struct tomoyo_io_buffer *head,
 		head->r.cond_step++;
 		/* fall through */
 	case 3:
+		if (cond->grant_log != TOMOYO_GRANTLOG_AUTO)
+			tomoyo_io_printf(head, " grant_log=%s",
+					 tomoyo_yesno(cond->grant_log ==
+						      TOMOYO_GRANTLOG_YES));
 		tomoyo_set_lf(head);
 		return true;
 	}
@@ -1306,6 +1397,12 @@ static bool tomoyo_print_entry(struct tomoyo_io_buffer *head,
 		if (first)
 			return true;
 		tomoyo_print_name_union(head, &ptr->name);
+	} else if (acl_type == TOMOYO_TYPE_MANUAL_TASK_ACL) {
+		struct tomoyo_task_acl *ptr =
+			container_of(acl, typeof(*ptr), head);
+		tomoyo_set_group(head, "task ");
+		tomoyo_set_string(head, "manual_domain_transition ");
+		tomoyo_set_string(head, ptr->domainname->name);
 	} else if (head->r.print_transition_related_only) {
 		return true;
 	} else if (acl_type == TOMOYO_TYPE_PATH2_ACL) {
@@ -1370,6 +1467,60 @@ static bool tomoyo_print_entry(struct tomoyo_io_buffer *head,
 		tomoyo_print_number_union(head, &ptr->mode);
 		tomoyo_print_number_union(head, &ptr->major);
 		tomoyo_print_number_union(head, &ptr->minor);
+	} else if (acl_type == TOMOYO_TYPE_INET_ACL) {
+		struct tomoyo_inet_acl *ptr =
+			container_of(acl, typeof(*ptr), head);
+		const u8 perm = ptr->perm;
+
+		for (bit = 0; bit < TOMOYO_MAX_NETWORK_OPERATION; bit++) {
+			if (!(perm & (1 << bit)))
+				continue;
+			if (first) {
+				tomoyo_set_group(head, "network inet ");
+				tomoyo_set_string(head, tomoyo_proto_keyword
+						  [ptr->protocol]);
+				tomoyo_set_space(head);
+				first = false;
+			} else {
+				tomoyo_set_slash(head);
+			}
+			tomoyo_set_string(head, tomoyo_socket_keyword[bit]);
+		}
+		if (first)
+			return true;
+		tomoyo_set_space(head);
+		if (ptr->address.group) {
+			tomoyo_set_string(head, "@");
+			tomoyo_set_string(head, ptr->address.group->group_name
+					  ->name);
+		} else {
+			char buf[128];
+			tomoyo_print_ip(buf, sizeof(buf), &ptr->address);
+			tomoyo_io_printf(head, "%s", buf);
+		}
+		tomoyo_print_number_union(head, &ptr->port);
+	} else if (acl_type == TOMOYO_TYPE_UNIX_ACL) {
+		struct tomoyo_unix_acl *ptr =
+			container_of(acl, typeof(*ptr), head);
+		const u8 perm = ptr->perm;
+
+		for (bit = 0; bit < TOMOYO_MAX_NETWORK_OPERATION; bit++) {
+			if (!(perm & (1 << bit)))
+				continue;
+			if (first) {
+				tomoyo_set_group(head, "network unix ");
+				tomoyo_set_string(head, tomoyo_proto_keyword
+						  [ptr->protocol]);
+				tomoyo_set_space(head);
+				first = false;
+			} else {
+				tomoyo_set_slash(head);
+			}
+			tomoyo_set_string(head, tomoyo_socket_keyword[bit]);
+		}
+		if (first)
+			return true;
+		tomoyo_print_name_union(head, &ptr->name);
 	} else if (acl_type == TOMOYO_TYPE_MOUNT_ACL) {
 		struct tomoyo_mount_acl *ptr =
 			container_of(acl, typeof(*ptr), head);
@@ -1378,6 +1529,12 @@ static bool tomoyo_print_entry(struct tomoyo_io_buffer *head,
 		tomoyo_print_name_union(head, &ptr->dir_name);
 		tomoyo_print_name_union(head, &ptr->fs_type);
 		tomoyo_print_number_union(head, &ptr->flags);
+	} else if (acl_type == TOMOYO_TYPE_ENV_ACL) {
+		struct tomoyo_env_acl *ptr =
+			container_of(acl, typeof(*ptr), head);
+
+		tomoyo_set_group(head, "misc env ");
+		tomoyo_set_string(head, ptr->env->name);
 	}
 	if (acl->cond) {
 		head->r.print_cond_part = true;
@@ -1510,14 +1667,12 @@ static void tomoyo_read_pid(struct tomoyo_io_buffer *head)
 		global_pid = true;
 	pid = (unsigned int) simple_strtoul(buf, NULL, 10);
 	rcu_read_lock();
-	read_lock(&tasklist_lock);
 	if (global_pid)
 		p = find_task_by_pid_ns(pid, &init_pid_ns);
 	else
 		p = find_task_by_vpid(pid);
 	if (p)
 		domain = tomoyo_real_domain(p);
-	read_unlock(&tasklist_lock);
 	rcu_read_unlock();
 	if (!domain)
 		return;
@@ -1537,8 +1692,9 @@ static const char *tomoyo_transition_type[TOMOYO_MAX_TRANSITION_TYPE] = {
 
 /* String table for grouping keywords. */
 static const char *tomoyo_group_name[TOMOYO_MAX_GROUP] = {
-	[TOMOYO_PATH_GROUP]   = "path_group ",
-	[TOMOYO_NUMBER_GROUP] = "number_group ",
+	[TOMOYO_PATH_GROUP]    = "path_group ",
+	[TOMOYO_NUMBER_GROUP]  = "number_group ",
+	[TOMOYO_ADDRESS_GROUP] = "address_group ",
 };
 
 /**
@@ -1580,7 +1736,7 @@ static int tomoyo_write_exception(struct tomoyo_io_buffer *head)
 }
 
 /**
- * tomoyo_read_group - Read "struct tomoyo_path_group"/"struct tomoyo_number_group" list.
+ * tomoyo_read_group - Read "struct tomoyo_path_group"/"struct tomoyo_number_group"/"struct tomoyo_address_group" list.
  *
  * @head: Pointer to "struct tomoyo_io_buffer".
  * @idx:  Index number.
@@ -1617,6 +1773,15 @@ static bool tomoyo_read_group(struct tomoyo_io_buffer *head, const int idx)
 							  (ptr,
 						   struct tomoyo_number_group,
 							   head)->number);
+			} else if (idx == TOMOYO_ADDRESS_GROUP) {
+				char buffer[128];
+
+				struct tomoyo_address_group *member =
+					container_of(ptr, typeof(*member),
+						     head);
+				tomoyo_print_ip(buffer, sizeof(buffer),
+						&member->address);
+				tomoyo_io_printf(head, " %s", buffer);
 			}
 			tomoyo_set_lf(head);
 		}
@@ -2066,27 +2231,7 @@ static int tomoyo_write_answer(struct tomoyo_io_buffer *head)
 static void tomoyo_read_version(struct tomoyo_io_buffer *head)
 {
 	if (!head->r.eof) {
-		tomoyo_io_printf(head, "2.4.0");
-		head->r.eof = true;
-	}
-}
-
-/**
- * tomoyo_read_self_domain - Get the current process's domainname.
- *
- * @head: Pointer to "struct tomoyo_io_buffer".
- *
- * Returns the current process's domainname.
- */
-static void tomoyo_read_self_domain(struct tomoyo_io_buffer *head)
-{
-	if (!head->r.eof) {
-		/*
-		 * tomoyo_domain()->domainname != NULL
-		 * because every process belongs to a domain and
-		 * the domain's name cannot be NULL.
-		 */
-		tomoyo_io_printf(head, "%s", tomoyo_domain()->domainname->name);
+		tomoyo_io_printf(head, "2.5.0");
 		head->r.eof = true;
 	}
 }
@@ -2221,10 +2366,6 @@ int tomoyo_open_control(const u8 type, struct file *file)
 		head->poll = tomoyo_poll_log;
 		head->read = tomoyo_read_log;
 		break;
-	case TOMOYO_SELFDOMAIN:
-		/* /sys/kernel/security/tomoyo/self_domain */
-		head->read = tomoyo_read_self_domain;
-		break;
 	case TOMOYO_PROCESS_STATUS:
 		/* /sys/kernel/security/tomoyo/.process_status */
 		head->write = tomoyo_write_pid;
@@ -2453,6 +2594,7 @@ ssize_t tomoyo_write_control(struct tomoyo_io_buffer *head,
 		return -EFAULT;
 	if (mutex_lock_interruptible(&head->io_sem))
 		return -EINTR;
+	head->read_user_buf_avail = 0;
 	idx = tomoyo_read_lock();
 	/* Read a line and dispatch it to the policy handler. */
 	while (avail_len > 0) {
@@ -2562,11 +2704,11 @@ void tomoyo_check_profile(void)
 	struct tomoyo_domain_info *domain;
 	const int idx = tomoyo_read_lock();
 	tomoyo_policy_loaded = true;
-	printk(KERN_INFO "TOMOYO: 2.4.0\n");
+	printk(KERN_INFO "TOMOYO: 2.5.0\n");
 	list_for_each_entry_rcu(domain, &tomoyo_domain_list, list) {
 		const u8 profile = domain->profile;
 		const struct tomoyo_policy_namespace *ns = domain->ns;
-		if (ns->profile_version != 20100903)
+		if (ns->profile_version != 20110903)
 			printk(KERN_ERR
 			       "Profile version %u is not supported.\n",
 			       ns->profile_version);
@@ -2577,9 +2719,9 @@ void tomoyo_check_profile(void)
 		else
 			continue;
 		printk(KERN_ERR
-		       "Userland tools for TOMOYO 2.4 must be installed and "
+		       "Userland tools for TOMOYO 2.5 must be installed and "
 		       "policy must be initialized.\n");
-		printk(KERN_ERR "Please see http://tomoyo.sourceforge.jp/2.4/ "
+		printk(KERN_ERR "Please see http://tomoyo.sourceforge.jp/2.5/ "
 		       "for more information.\n");
 		panic("STOP!");
 	}
diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h
index f7fbaa66e443..ed311d7a8ce0 100644
--- a/security/tomoyo/common.h
+++ b/security/tomoyo/common.h
@@ -3,7 +3,7 @@
  *
  * Header file for TOMOYO.
  *
- * Copyright (C) 2005-2010  NTT DATA CORPORATION
+ * Copyright (C) 2005-2011  NTT DATA CORPORATION
  */
 
 #ifndef _SECURITY_TOMOYO_COMMON_H
@@ -23,6 +23,16 @@
 #include <linux/poll.h>
 #include <linux/binfmts.h>
 #include <linux/highmem.h>
+#include <linux/net.h>
+#include <linux/inet.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/un.h>
+#include <net/sock.h>
+#include <net/af_unix.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+#include <net/udp.h>
 
 /********** Constants definitions. **********/
 
@@ -34,8 +44,17 @@
 #define TOMOYO_HASH_BITS  8
 #define TOMOYO_MAX_HASH (1u<<TOMOYO_HASH_BITS)
 
+/*
+ * TOMOYO checks only SOCK_STREAM, SOCK_DGRAM, SOCK_RAW, SOCK_SEQPACKET.
+ * Therefore, we don't need SOCK_MAX.
+ */
+#define TOMOYO_SOCK_MAX 6
+
 #define TOMOYO_EXEC_TMPSIZE     4096
 
+/* Garbage collector is trying to kfree() this element. */
+#define TOMOYO_GC_IN_PROGRESS -1
+
 /* Profile number is an integer between 0 and 255. */
 #define TOMOYO_MAX_PROFILES 256
 
@@ -136,6 +155,7 @@ enum tomoyo_mode_index {
 /* Index numbers for entry type. */
 enum tomoyo_policy_id {
 	TOMOYO_ID_GROUP,
+	TOMOYO_ID_ADDRESS_GROUP,
 	TOMOYO_ID_PATH_GROUP,
 	TOMOYO_ID_NUMBER_GROUP,
 	TOMOYO_ID_TRANSITION_CONTROL,
@@ -162,10 +182,21 @@ enum tomoyo_domain_info_flags_index {
 	TOMOYO_MAX_DOMAIN_INFO_FLAGS
 };
 
+/* Index numbers for audit type. */
+enum tomoyo_grant_log {
+	/* Follow profile's configuration. */
+	TOMOYO_GRANTLOG_AUTO,
+	/* Do not generate grant log. */
+	TOMOYO_GRANTLOG_NO,
+	/* Generate grant_log. */
+	TOMOYO_GRANTLOG_YES,
+};
+
 /* Index numbers for group entries. */
 enum tomoyo_group_id {
 	TOMOYO_PATH_GROUP,
 	TOMOYO_NUMBER_GROUP,
+	TOMOYO_ADDRESS_GROUP,
 	TOMOYO_MAX_GROUP
 };
 
@@ -196,6 +227,10 @@ enum tomoyo_acl_entry_type_index {
 	TOMOYO_TYPE_PATH_NUMBER_ACL,
 	TOMOYO_TYPE_MKDEV_ACL,
 	TOMOYO_TYPE_MOUNT_ACL,
+	TOMOYO_TYPE_INET_ACL,
+	TOMOYO_TYPE_UNIX_ACL,
+	TOMOYO_TYPE_ENV_ACL,
+	TOMOYO_TYPE_MANUAL_TASK_ACL,
 };
 
 /* Index numbers for access controls with one pathname. */
@@ -228,6 +263,15 @@ enum tomoyo_mkdev_acl_index {
 	TOMOYO_MAX_MKDEV_OPERATION
 };
 
+/* Index numbers for socket operations. */
+enum tomoyo_network_acl_index {
+	TOMOYO_NETWORK_BIND,    /* bind() operation. */
+	TOMOYO_NETWORK_LISTEN,  /* listen() operation. */
+	TOMOYO_NETWORK_CONNECT, /* connect() operation. */
+	TOMOYO_NETWORK_SEND,    /* send() operation. */
+	TOMOYO_MAX_NETWORK_OPERATION
+};
+
 /* Index numbers for access controls with two pathnames. */
 enum tomoyo_path2_acl_index {
 	TOMOYO_TYPE_LINK,
@@ -255,7 +299,6 @@ enum tomoyo_securityfs_interface_index {
 	TOMOYO_EXCEPTIONPOLICY,
 	TOMOYO_PROCESS_STATUS,
 	TOMOYO_STAT,
-	TOMOYO_SELFDOMAIN,
 	TOMOYO_AUDIT,
 	TOMOYO_VERSION,
 	TOMOYO_PROFILE,
@@ -300,12 +343,30 @@ enum tomoyo_mac_index {
 	TOMOYO_MAC_FILE_MOUNT,
 	TOMOYO_MAC_FILE_UMOUNT,
 	TOMOYO_MAC_FILE_PIVOT_ROOT,
+	TOMOYO_MAC_NETWORK_INET_STREAM_BIND,
+	TOMOYO_MAC_NETWORK_INET_STREAM_LISTEN,
+	TOMOYO_MAC_NETWORK_INET_STREAM_CONNECT,
+	TOMOYO_MAC_NETWORK_INET_DGRAM_BIND,
+	TOMOYO_MAC_NETWORK_INET_DGRAM_SEND,
+	TOMOYO_MAC_NETWORK_INET_RAW_BIND,
+	TOMOYO_MAC_NETWORK_INET_RAW_SEND,
+	TOMOYO_MAC_NETWORK_UNIX_STREAM_BIND,
+	TOMOYO_MAC_NETWORK_UNIX_STREAM_LISTEN,
+	TOMOYO_MAC_NETWORK_UNIX_STREAM_CONNECT,
+	TOMOYO_MAC_NETWORK_UNIX_DGRAM_BIND,
+	TOMOYO_MAC_NETWORK_UNIX_DGRAM_SEND,
+	TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_BIND,
+	TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_LISTEN,
+	TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_CONNECT,
+	TOMOYO_MAC_ENVIRON,
 	TOMOYO_MAX_MAC_INDEX
 };
 
 /* Index numbers for category of functionality. */
 enum tomoyo_mac_category_index {
 	TOMOYO_MAC_CATEGORY_FILE,
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	TOMOYO_MAC_CATEGORY_MISC,
 	TOMOYO_MAX_MAC_CATEGORY_INDEX
 };
 
@@ -340,7 +401,7 @@ enum tomoyo_pref_index {
 /* Common header for holding ACL entries. */
 struct tomoyo_acl_head {
 	struct list_head list;
-	bool is_deleted;
+	s8 is_deleted; /* true or false or TOMOYO_GC_IN_PROGRESS */
 } __packed;
 
 /* Common header for shared entries. */
@@ -397,13 +458,36 @@ struct tomoyo_request_info {
 			u8 operation;
 		} path_number;
 		struct {
+			const struct tomoyo_path_info *name;
+		} environ;
+		struct {
+			const __be32 *address;
+			u16 port;
+			/* One of values smaller than TOMOYO_SOCK_MAX. */
+			u8 protocol;
+			/* One of values in "enum tomoyo_network_acl_index". */
+			u8 operation;
+			bool is_ipv6;
+		} inet_network;
+		struct {
+			const struct tomoyo_path_info *address;
+			/* One of values smaller than TOMOYO_SOCK_MAX. */
+			u8 protocol;
+			/* One of values in "enum tomoyo_network_acl_index". */
+			u8 operation;
+		} unix_network;
+		struct {
 			const struct tomoyo_path_info *type;
 			const struct tomoyo_path_info *dir;
 			const struct tomoyo_path_info *dev;
 			unsigned long flags;
 			int need_dev;
 		} mount;
+		struct {
+			const struct tomoyo_path_info *domainname;
+		} task;
 	} param;
+	struct tomoyo_acl_info *matched_acl;
 	u8 param_type;
 	bool granted;
 	u8 retry;
@@ -442,7 +526,14 @@ struct tomoyo_number_union {
 	u8 value_type[2];
 };
 
-/* Structure for "path_group"/"number_group" directive. */
+/* Structure for holding an IP address. */
+struct tomoyo_ipaddr_union {
+	struct in6_addr ip[2]; /* Big endian. */
+	struct tomoyo_group *group; /* Pointer to address group. */
+	bool is_ipv6; /* Valid only if @group == NULL. */
+};
+
+/* Structure for "path_group"/"number_group"/"address_group" directive. */
 struct tomoyo_group {
 	struct tomoyo_shared_acl_head head;
 	const struct tomoyo_path_info *group_name;
@@ -461,6 +552,13 @@ struct tomoyo_number_group {
 	struct tomoyo_number_union number;
 };
 
+/* Structure for "address_group" directive. */
+struct tomoyo_address_group {
+	struct tomoyo_acl_head head;
+	/* Structure for holding an IP address. */
+	struct tomoyo_ipaddr_union address;
+};
+
 /* Subset of "struct stat". Used by conditional ACL and audit logs. */
 struct tomoyo_mini_stat {
 	uid_t uid;
@@ -520,6 +618,7 @@ struct tomoyo_execve {
 	struct tomoyo_request_info r;
 	struct tomoyo_obj_info obj;
 	struct linux_binprm *bprm;
+	const struct tomoyo_path_info *transition;
 	/* For dumping argv[] and envp[]. */
 	struct tomoyo_page_dump dump;
 	/* For temporary use. */
@@ -554,6 +653,8 @@ struct tomoyo_condition {
 	u16 names_count; /* Number of "struct tomoyo_name_union names". */
 	u16 argc; /* Number of "struct tomoyo_argv". */
 	u16 envc; /* Number of "struct tomoyo_envp". */
+	u8 grant_log; /* One of values in "enum tomoyo_grant_log". */
+	const struct tomoyo_path_info *transit; /* Maybe NULL. */
 	/*
 	 * struct tomoyo_condition_element condition[condc];
 	 * struct tomoyo_number_union values[numbers_count];
@@ -567,7 +668,7 @@ struct tomoyo_condition {
 struct tomoyo_acl_info {
 	struct list_head list;
 	struct tomoyo_condition *cond; /* Maybe NULL. */
-	bool is_deleted;
+	s8 is_deleted; /* true or false or TOMOYO_GC_IN_PROGRESS */
 	u8 type; /* One of values in "enum tomoyo_acl_entry_type_index". */
 } __packed;
 
@@ -587,6 +688,15 @@ struct tomoyo_domain_info {
 };
 
 /*
+ * Structure for "task manual_domain_transition" directive.
+ */
+struct tomoyo_task_acl {
+	struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_MANUAL_TASK_ACL */
+	/* Pointer to domainname. */
+	const struct tomoyo_path_info *domainname;
+};
+
+/*
  * Structure for "file execute", "file read", "file write", "file append",
  * "file unlink", "file getattr", "file rmdir", "file truncate",
  * "file symlink", "file chroot" and "file unmount" directive.
@@ -638,6 +748,29 @@ struct tomoyo_mount_acl {
 	struct tomoyo_number_union flags;
 };
 
+/* Structure for "misc env" directive in domain policy. */
+struct tomoyo_env_acl {
+	struct tomoyo_acl_info head;        /* type = TOMOYO_TYPE_ENV_ACL  */
+	const struct tomoyo_path_info *env; /* environment variable */
+};
+
+/* Structure for "network inet" directive. */
+struct tomoyo_inet_acl {
+	struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_INET_ACL */
+	u8 protocol;
+	u8 perm; /* Bitmask of values in "enum tomoyo_network_acl_index" */
+	struct tomoyo_ipaddr_union address;
+	struct tomoyo_number_union port;
+};
+
+/* Structure for "network unix" directive. */
+struct tomoyo_unix_acl {
+	struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_UNIX_ACL */
+	u8 protocol;
+	u8 perm; /* Bitmask of values in "enum tomoyo_network_acl_index" */
+	struct tomoyo_name_union name;
+};
+
 /* Structure for holding a line from /sys/kernel/security/tomoyo/ interface. */
 struct tomoyo_acl_param {
 	char *data;
@@ -773,7 +906,7 @@ struct tomoyo_policy_namespace {
 	struct list_head acl_group[TOMOYO_MAX_ACL_GROUPS];
 	/* List for connecting to tomoyo_namespace_list list. */
 	struct list_head namespace_list;
-	/* Profile version. Currently only 20100903 is defined. */
+	/* Profile version. Currently only 20110903 is defined. */
 	unsigned int profile_version;
 	/* Name of this namespace (e.g. "<kernel>", "</usr/sbin/httpd>" ). */
 	const char *name;
@@ -781,6 +914,8 @@ struct tomoyo_policy_namespace {
 
 /********** Function prototypes. **********/
 
+bool tomoyo_address_matches_group(const bool is_ipv6, const __be32 *address,
+				  const struct tomoyo_group *group);
 bool tomoyo_compare_number_union(const unsigned long value,
 				 const struct tomoyo_number_union *ptr);
 bool tomoyo_condition(struct tomoyo_request_info *r,
@@ -796,6 +931,8 @@ bool tomoyo_memory_ok(void *ptr);
 bool tomoyo_number_matches_group(const unsigned long min,
 				 const unsigned long max,
 				 const struct tomoyo_group *group);
+bool tomoyo_parse_ipaddr_union(struct tomoyo_acl_param *param,
+			       struct tomoyo_ipaddr_union *ptr);
 bool tomoyo_parse_name_union(struct tomoyo_acl_param *param,
 			     struct tomoyo_name_union *ptr);
 bool tomoyo_parse_number_union(struct tomoyo_acl_param *param,
@@ -805,6 +942,7 @@ bool tomoyo_path_matches_pattern(const struct tomoyo_path_info *filename,
 bool tomoyo_permstr(const char *string, const char *keyword);
 bool tomoyo_str_starts(char **src, const char *find);
 char *tomoyo_encode(const char *str);
+char *tomoyo_encode2(const char *str, int str_len);
 char *tomoyo_init_log(struct tomoyo_request_info *r, int len, const char *fmt,
 		      va_list args);
 char *tomoyo_read_token(struct tomoyo_acl_param *param);
@@ -814,12 +952,17 @@ const char *tomoyo_get_exe(void);
 const char *tomoyo_yesno(const unsigned int value);
 const struct tomoyo_path_info *tomoyo_compare_name_union
 (const struct tomoyo_path_info *name, const struct tomoyo_name_union *ptr);
+const struct tomoyo_path_info *tomoyo_get_domainname
+(struct tomoyo_acl_param *param);
 const struct tomoyo_path_info *tomoyo_get_name(const char *name);
 const struct tomoyo_path_info *tomoyo_path_matches_group
 (const struct tomoyo_path_info *pathname, const struct tomoyo_group *group);
 int tomoyo_check_open_permission(struct tomoyo_domain_info *domain,
 				 struct path *path, const int flag);
 int tomoyo_close_control(struct tomoyo_io_buffer *head);
+int tomoyo_env_perm(struct tomoyo_request_info *r, const char *env);
+int tomoyo_execute_permission(struct tomoyo_request_info *r,
+			      const struct tomoyo_path_info *filename);
 int tomoyo_find_next_domain(struct linux_binprm *bprm);
 int tomoyo_get_mode(const struct tomoyo_policy_namespace *ns, const u8 profile,
 		    const u8 index);
@@ -838,10 +981,15 @@ int tomoyo_path_number_perm(const u8 operation, struct path *path,
 			    unsigned long number);
 int tomoyo_path_perm(const u8 operation, struct path *path,
 		     const char *target);
-int tomoyo_path_permission(struct tomoyo_request_info *r, u8 operation,
-			   const struct tomoyo_path_info *filename);
 int tomoyo_poll_control(struct file *file, poll_table *wait);
 int tomoyo_poll_log(struct file *file, poll_table *wait);
+int tomoyo_socket_bind_permission(struct socket *sock, struct sockaddr *addr,
+				  int addr_len);
+int tomoyo_socket_connect_permission(struct socket *sock,
+				     struct sockaddr *addr, int addr_len);
+int tomoyo_socket_listen_permission(struct socket *sock);
+int tomoyo_socket_sendmsg_permission(struct socket *sock, struct msghdr *msg,
+				     int size);
 int tomoyo_supervisor(struct tomoyo_request_info *r, const char *fmt, ...)
 	__printf(2, 3);
 int tomoyo_update_domain(struct tomoyo_acl_info *new_entry, const int size,
@@ -860,8 +1008,11 @@ int tomoyo_update_policy(struct tomoyo_acl_head *new_entry, const int size,
 int tomoyo_write_aggregator(struct tomoyo_acl_param *param);
 int tomoyo_write_file(struct tomoyo_acl_param *param);
 int tomoyo_write_group(struct tomoyo_acl_param *param, const u8 type);
+int tomoyo_write_misc(struct tomoyo_acl_param *param);
+int tomoyo_write_inet_network(struct tomoyo_acl_param *param);
 int tomoyo_write_transition_control(struct tomoyo_acl_param *param,
 				    const u8 type);
+int tomoyo_write_unix_network(struct tomoyo_acl_param *param);
 ssize_t tomoyo_read_control(struct tomoyo_io_buffer *head, char __user *buffer,
 			    const int buffer_len);
 ssize_t tomoyo_write_control(struct tomoyo_io_buffer *head,
@@ -891,12 +1042,11 @@ void tomoyo_del_condition(struct list_head *element);
 void tomoyo_fill_path_info(struct tomoyo_path_info *ptr);
 void tomoyo_get_attributes(struct tomoyo_obj_info *obj);
 void tomoyo_init_policy_namespace(struct tomoyo_policy_namespace *ns);
-void tomoyo_io_printf(struct tomoyo_io_buffer *head, const char *fmt, ...)
-	 __printf(2, 3);
 void tomoyo_load_policy(const char *filename);
-void tomoyo_memory_free(void *ptr);
 void tomoyo_normalize_line(unsigned char *buffer);
 void tomoyo_notify_gc(struct tomoyo_io_buffer *head, const bool is_register);
+void tomoyo_print_ip(char *buf, const unsigned int size,
+		     const struct tomoyo_ipaddr_union *ptr);
 void tomoyo_print_ulong(char *buffer, const int buffer_len,
 			const unsigned long value, const u8 type);
 void tomoyo_put_name_union(struct tomoyo_name_union *ptr);
@@ -919,6 +1069,8 @@ extern const char * const tomoyo_mac_keywords[TOMOYO_MAX_MAC_INDEX
 					      + TOMOYO_MAX_MAC_CATEGORY_INDEX];
 extern const char * const tomoyo_mode[TOMOYO_CONFIG_MAX_MODE];
 extern const char * const tomoyo_path_keyword[TOMOYO_MAX_PATH_OPERATION];
+extern const char * const tomoyo_proto_keyword[TOMOYO_SOCK_MAX];
+extern const char * const tomoyo_socket_keyword[TOMOYO_MAX_NETWORK_OPERATION];
 extern const u8 tomoyo_index2category[TOMOYO_MAX_MAC_INDEX];
 extern const u8 tomoyo_pn2mac[TOMOYO_MAX_PATH_NUMBER_OPERATION];
 extern const u8 tomoyo_pnnn2mac[TOMOYO_MAX_MKDEV_OPERATION];
@@ -1098,6 +1250,21 @@ static inline bool tomoyo_same_number_union
 }
 
 /**
+ * tomoyo_same_ipaddr_union - Check for duplicated "struct tomoyo_ipaddr_union" entry.
+ *
+ * @a: Pointer to "struct tomoyo_ipaddr_union".
+ * @b: Pointer to "struct tomoyo_ipaddr_union".
+ *
+ * Returns true if @a == @b, false otherwise.
+ */
+static inline bool tomoyo_same_ipaddr_union
+(const struct tomoyo_ipaddr_union *a, const struct tomoyo_ipaddr_union *b)
+{
+	return !memcmp(a->ip, b->ip, sizeof(a->ip)) && a->group == b->group &&
+		a->is_ipv6 == b->is_ipv6;
+}
+
+/**
  * tomoyo_current_namespace - Get "struct tomoyo_policy_namespace" for current thread.
  *
  * Returns pointer to "struct tomoyo_policy_namespace" for current thread.
diff --git a/security/tomoyo/condition.c b/security/tomoyo/condition.c
index 8a05f71eaf67..986330b8c73e 100644
--- a/security/tomoyo/condition.c
+++ b/security/tomoyo/condition.c
@@ -348,6 +348,7 @@ static inline bool tomoyo_same_condition(const struct tomoyo_condition *a,
 		a->numbers_count == b->numbers_count &&
 		a->names_count == b->names_count &&
 		a->argc == b->argc && a->envc == b->envc &&
+		a->grant_log == b->grant_log && a->transit == b->transit &&
 		!memcmp(a + 1, b + 1, a->size - sizeof(*a));
 }
 
@@ -399,8 +400,9 @@ static struct tomoyo_condition *tomoyo_commit_condition
 		found = true;
 		goto out;
 	}
-	list_for_each_entry_rcu(ptr, &tomoyo_condition_list, head.list) {
-		if (!tomoyo_same_condition(ptr, entry))
+	list_for_each_entry(ptr, &tomoyo_condition_list, head.list) {
+		if (!tomoyo_same_condition(ptr, entry) ||
+		    atomic_read(&ptr->head.users) == TOMOYO_GC_IN_PROGRESS)
 			continue;
 		/* Same entry found. Share this entry. */
 		atomic_inc(&ptr->head.users);
@@ -410,8 +412,7 @@ static struct tomoyo_condition *tomoyo_commit_condition
 	if (!found) {
 		if (tomoyo_memory_ok(entry)) {
 			atomic_set(&entry->head.users, 1);
-			list_add_rcu(&entry->head.list,
-				     &tomoyo_condition_list);
+			list_add(&entry->head.list, &tomoyo_condition_list);
 		} else {
 			found = true;
 			ptr = NULL;
@@ -428,6 +429,46 @@ out:
 }
 
 /**
+ * tomoyo_get_transit_preference - Parse domain transition preference for execve().
+ *
+ * @param: Pointer to "struct tomoyo_acl_param".
+ * @e:     Pointer to "struct tomoyo_condition".
+ *
+ * Returns the condition string part.
+ */
+static char *tomoyo_get_transit_preference(struct tomoyo_acl_param *param,
+					   struct tomoyo_condition *e)
+{
+	char * const pos = param->data;
+	bool flag;
+	if (*pos == '<') {
+		e->transit = tomoyo_get_domainname(param);
+		goto done;
+	}
+	{
+		char *cp = strchr(pos, ' ');
+		if (cp)
+			*cp = '\0';
+		flag = tomoyo_correct_path(pos) || !strcmp(pos, "keep") ||
+			!strcmp(pos, "initialize") || !strcmp(pos, "reset") ||
+			!strcmp(pos, "child") || !strcmp(pos, "parent");
+		if (cp)
+			*cp = ' ';
+	}
+	if (!flag)
+		return pos;
+	e->transit = tomoyo_get_name(tomoyo_read_token(param));
+done:
+	if (e->transit)
+		return param->data;
+	/*
+	 * Return a bad read-only condition string that will let
+	 * tomoyo_get_condition() return NULL.
+	 */
+	return "/";
+}
+
+/**
  * tomoyo_get_condition - Parse condition part.
  *
  * @param: Pointer to "struct tomoyo_acl_param".
@@ -443,7 +484,8 @@ struct tomoyo_condition *tomoyo_get_condition(struct tomoyo_acl_param *param)
 	struct tomoyo_argv *argv = NULL;
 	struct tomoyo_envp *envp = NULL;
 	struct tomoyo_condition e = { };
-	char * const start_of_string = param->data;
+	char * const start_of_string =
+		tomoyo_get_transit_preference(param, &e);
 	char * const end_of_string = start_of_string + strlen(start_of_string);
 	char *pos;
 rerun:
@@ -486,6 +528,20 @@ rerun:
 			goto out;
 		dprintk(KERN_WARNING "%u: <%s>%s=<%s>\n", __LINE__, left_word,
 			is_not ? "!" : "", right_word);
+		if (!strcmp(left_word, "grant_log")) {
+			if (entry) {
+				if (is_not ||
+				    entry->grant_log != TOMOYO_GRANTLOG_AUTO)
+					goto out;
+				else if (!strcmp(right_word, "yes"))
+					entry->grant_log = TOMOYO_GRANTLOG_YES;
+				else if (!strcmp(right_word, "no"))
+					entry->grant_log = TOMOYO_GRANTLOG_NO;
+				else
+					goto out;
+			}
+			continue;
+		}
 		if (!strncmp(left_word, "exec.argv[", 10)) {
 			if (!argv) {
 				e.argc++;
@@ -593,8 +649,9 @@ store_value:
 		+ e.envc * sizeof(struct tomoyo_envp);
 	entry = kzalloc(e.size, GFP_NOFS);
 	if (!entry)
-		return NULL;
+		goto out2;
 	*entry = e;
+	e.transit = NULL;
 	condp = (struct tomoyo_condition_element *) (entry + 1);
 	numbers_p = (struct tomoyo_number_union *) (condp + e.condc);
 	names_p = (struct tomoyo_name_union *) (numbers_p + e.numbers_count);
@@ -621,6 +678,8 @@ out:
 		tomoyo_del_condition(&entry->head.list);
 		kfree(entry);
 	}
+out2:
+	tomoyo_put_name(e.transit);
 	return NULL;
 }
 
diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c
index cd0f92d88bb4..9027ac1534af 100644
--- a/security/tomoyo/domain.c
+++ b/security/tomoyo/domain.c
@@ -39,6 +39,8 @@ int tomoyo_update_policy(struct tomoyo_acl_head *new_entry, const int size,
 	if (mutex_lock_interruptible(&tomoyo_policy_lock))
 		return -ENOMEM;
 	list_for_each_entry_rcu(entry, list, list) {
+		if (entry->is_deleted == TOMOYO_GC_IN_PROGRESS)
+			continue;
 		if (!check_duplicate(entry, new_entry))
 			continue;
 		entry->is_deleted = param->is_delete;
@@ -102,10 +104,21 @@ int tomoyo_update_domain(struct tomoyo_acl_info *new_entry, const int size,
 		new_entry->cond = tomoyo_get_condition(param);
 		if (!new_entry->cond)
 			return -EINVAL;
+		/*
+		 * Domain transition preference is allowed for only
+		 * "file execute" entries.
+		 */
+		if (new_entry->cond->transit &&
+		    !(new_entry->type == TOMOYO_TYPE_PATH_ACL &&
+		      container_of(new_entry, struct tomoyo_path_acl, head)
+		      ->perm == 1 << TOMOYO_TYPE_EXECUTE))
+			goto out;
 	}
 	if (mutex_lock_interruptible(&tomoyo_policy_lock))
 		goto out;
 	list_for_each_entry_rcu(entry, list, list) {
+		if (entry->is_deleted == TOMOYO_GC_IN_PROGRESS)
+			continue;
 		if (!tomoyo_same_acl_head(entry, new_entry) ||
 		    !check_duplicate(entry, new_entry))
 			continue;
@@ -157,6 +170,7 @@ retry:
 			continue;
 		if (!tomoyo_condition(r, ptr->cond))
 			continue;
+		r->matched_acl = ptr;
 		r->granted = true;
 		return;
 	}
@@ -501,7 +515,8 @@ struct tomoyo_domain_info *tomoyo_assign_domain(const char *domainname,
 			 * that domain. Do not perform domain transition if
 			 * profile for that domain is not yet created.
 			 */
-			if (!entry->ns->profile_ptr[entry->profile])
+			if (tomoyo_policy_loaded &&
+			    !entry->ns->profile_ptr[entry->profile])
 				return NULL;
 		}
 		return entry;
@@ -557,12 +572,99 @@ out:
 			tomoyo_write_log(&r, "use_profile %u\n",
 					 entry->profile);
 			tomoyo_write_log(&r, "use_group %u\n", entry->group);
+			tomoyo_update_stat(TOMOYO_STAT_POLICY_UPDATES);
 		}
 	}
 	return entry;
 }
 
 /**
+ * tomoyo_environ - Check permission for environment variable names.
+ *
+ * @ee: Pointer to "struct tomoyo_execve".
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+static int tomoyo_environ(struct tomoyo_execve *ee)
+{
+	struct tomoyo_request_info *r = &ee->r;
+	struct linux_binprm *bprm = ee->bprm;
+	/* env_page.data is allocated by tomoyo_dump_page(). */
+	struct tomoyo_page_dump env_page = { };
+	char *arg_ptr; /* Size is TOMOYO_EXEC_TMPSIZE bytes */
+	int arg_len = 0;
+	unsigned long pos = bprm->p;
+	int offset = pos % PAGE_SIZE;
+	int argv_count = bprm->argc;
+	int envp_count = bprm->envc;
+	int error = -ENOMEM;
+
+	ee->r.type = TOMOYO_MAC_ENVIRON;
+	ee->r.profile = r->domain->profile;
+	ee->r.mode = tomoyo_get_mode(r->domain->ns, ee->r.profile,
+				     TOMOYO_MAC_ENVIRON);
+	if (!r->mode || !envp_count)
+		return 0;
+	arg_ptr = kzalloc(TOMOYO_EXEC_TMPSIZE, GFP_NOFS);
+	if (!arg_ptr)
+		goto out;
+	while (error == -ENOMEM) {
+		if (!tomoyo_dump_page(bprm, pos, &env_page))
+			goto out;
+		pos += PAGE_SIZE - offset;
+		/* Read. */
+		while (argv_count && offset < PAGE_SIZE) {
+			if (!env_page.data[offset++])
+				argv_count--;
+		}
+		if (argv_count) {
+			offset = 0;
+			continue;
+		}
+		while (offset < PAGE_SIZE) {
+			const unsigned char c = env_page.data[offset++];
+
+			if (c && arg_len < TOMOYO_EXEC_TMPSIZE - 10) {
+				if (c == '=') {
+					arg_ptr[arg_len++] = '\0';
+				} else if (c == '\\') {
+					arg_ptr[arg_len++] = '\\';
+					arg_ptr[arg_len++] = '\\';
+				} else if (c > ' ' && c < 127) {
+					arg_ptr[arg_len++] = c;
+				} else {
+					arg_ptr[arg_len++] = '\\';
+					arg_ptr[arg_len++] = (c >> 6) + '0';
+					arg_ptr[arg_len++]
+						= ((c >> 3) & 7) + '0';
+					arg_ptr[arg_len++] = (c & 7) + '0';
+				}
+			} else {
+				arg_ptr[arg_len] = '\0';
+			}
+			if (c)
+				continue;
+			if (tomoyo_env_perm(r, arg_ptr)) {
+				error = -EPERM;
+				break;
+			}
+			if (!--envp_count) {
+				error = 0;
+				break;
+			}
+			arg_len = 0;
+		}
+		offset = 0;
+	}
+out:
+	if (r->mode != TOMOYO_CONFIG_ENFORCING)
+		error = 0;
+	kfree(env_page.data);
+	kfree(arg_ptr);
+	return error;
+}
+
+/**
  * tomoyo_find_next_domain - Find a domain.
  *
  * @bprm: Pointer to "struct linux_binprm".
@@ -577,10 +679,11 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm)
 	struct tomoyo_domain_info *domain = NULL;
 	const char *original_name = bprm->filename;
 	int retval = -ENOMEM;
-	bool need_kfree = false;
 	bool reject_on_transition_failure = false;
-	struct tomoyo_path_info rn = { }; /* real name */
+	const struct tomoyo_path_info *candidate;
+	struct tomoyo_path_info exename;
 	struct tomoyo_execve *ee = kzalloc(sizeof(*ee), GFP_NOFS);
+
 	if (!ee)
 		return -ENOMEM;
 	ee->tmp = kzalloc(TOMOYO_EXEC_TMPSIZE, GFP_NOFS);
@@ -594,40 +697,32 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm)
 	ee->bprm = bprm;
 	ee->r.obj = &ee->obj;
 	ee->obj.path1 = bprm->file->f_path;
- retry:
-	if (need_kfree) {
-		kfree(rn.name);
-		need_kfree = false;
-	}
 	/* Get symlink's pathname of program. */
 	retval = -ENOENT;
-	rn.name = tomoyo_realpath_nofollow(original_name);
-	if (!rn.name)
+	exename.name = tomoyo_realpath_nofollow(original_name);
+	if (!exename.name)
 		goto out;
-	tomoyo_fill_path_info(&rn);
-	need_kfree = true;
-
+	tomoyo_fill_path_info(&exename);
+retry:
 	/* Check 'aggregator' directive. */
 	{
 		struct tomoyo_aggregator *ptr;
 		struct list_head *list =
 			&old_domain->ns->policy_list[TOMOYO_ID_AGGREGATOR];
 		/* Check 'aggregator' directive. */
+		candidate = &exename;
 		list_for_each_entry_rcu(ptr, list, head.list) {
 			if (ptr->head.is_deleted ||
-			    !tomoyo_path_matches_pattern(&rn,
+			    !tomoyo_path_matches_pattern(&exename,
 							 ptr->original_name))
 				continue;
-			kfree(rn.name);
-			need_kfree = false;
-			/* This is OK because it is read only. */
-			rn = *ptr->aggregated_name;
+			candidate = ptr->aggregated_name;
 			break;
 		}
 	}
 
 	/* Check execute permission. */
-	retval = tomoyo_path_permission(&ee->r, TOMOYO_TYPE_EXECUTE, &rn);
+	retval = tomoyo_execute_permission(&ee->r, candidate);
 	if (retval == TOMOYO_RETRY_REQUEST)
 		goto retry;
 	if (retval < 0)
@@ -638,20 +733,51 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm)
 	 * wildcard) rather than the pathname passed to execve()
 	 * (which never contains wildcard).
 	 */
-	if (ee->r.param.path.matched_path) {
-		if (need_kfree)
-			kfree(rn.name);
-		need_kfree = false;
-		/* This is OK because it is read only. */
-		rn = *ee->r.param.path.matched_path;
-	}
+	if (ee->r.param.path.matched_path)
+		candidate = ee->r.param.path.matched_path;
 
-	/* Calculate domain to transit to. */
+	/*
+	 * Check for domain transition preference if "file execute" matched.
+	 * If preference is given, make do_execve() fail if domain transition
+	 * has failed, for domain transition preference should be used with
+	 * destination domain defined.
+	 */
+	if (ee->transition) {
+		const char *domainname = ee->transition->name;
+		reject_on_transition_failure = true;
+		if (!strcmp(domainname, "keep"))
+			goto force_keep_domain;
+		if (!strcmp(domainname, "child"))
+			goto force_child_domain;
+		if (!strcmp(domainname, "reset"))
+			goto force_reset_domain;
+		if (!strcmp(domainname, "initialize"))
+			goto force_initialize_domain;
+		if (!strcmp(domainname, "parent")) {
+			char *cp;
+			strncpy(ee->tmp, old_domain->domainname->name,
+				TOMOYO_EXEC_TMPSIZE - 1);
+			cp = strrchr(ee->tmp, ' ');
+			if (cp)
+				*cp = '\0';
+		} else if (*domainname == '<')
+			strncpy(ee->tmp, domainname, TOMOYO_EXEC_TMPSIZE - 1);
+		else
+			snprintf(ee->tmp, TOMOYO_EXEC_TMPSIZE - 1, "%s %s",
+				 old_domain->domainname->name, domainname);
+		goto force_jump_domain;
+	}
+	/*
+	 * No domain transition preference specified.
+	 * Calculate domain to transit to.
+	 */
 	switch (tomoyo_transition_type(old_domain->ns, old_domain->domainname,
-				       &rn)) {
+				       candidate)) {
 	case TOMOYO_TRANSITION_CONTROL_RESET:
+force_reset_domain:
 		/* Transit to the root of specified namespace. */
-		snprintf(ee->tmp, TOMOYO_EXEC_TMPSIZE - 1, "<%s>", rn.name);
+		snprintf(ee->tmp, TOMOYO_EXEC_TMPSIZE - 1, "<%s>",
+			 candidate->name);
 		/*
 		 * Make do_execve() fail if domain transition across namespaces
 		 * has failed.
@@ -659,11 +785,13 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm)
 		reject_on_transition_failure = true;
 		break;
 	case TOMOYO_TRANSITION_CONTROL_INITIALIZE:
+force_initialize_domain:
 		/* Transit to the child of current namespace's root. */
 		snprintf(ee->tmp, TOMOYO_EXEC_TMPSIZE - 1, "%s %s",
-			 old_domain->ns->name, rn.name);
+			 old_domain->ns->name, candidate->name);
 		break;
 	case TOMOYO_TRANSITION_CONTROL_KEEP:
+force_keep_domain:
 		/* Keep current domain. */
 		domain = old_domain;
 		break;
@@ -677,13 +805,15 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm)
 			 * before /sbin/init.
 			 */
 			domain = old_domain;
-		} else {
-			/* Normal domain transition. */
-			snprintf(ee->tmp, TOMOYO_EXEC_TMPSIZE - 1, "%s %s",
-				 old_domain->domainname->name, rn.name);
+			break;
 		}
+force_child_domain:
+		/* Normal domain transition. */
+		snprintf(ee->tmp, TOMOYO_EXEC_TMPSIZE - 1, "%s %s",
+			 old_domain->domainname->name, candidate->name);
 		break;
 	}
+force_jump_domain:
 	if (!domain)
 		domain = tomoyo_assign_domain(ee->tmp, true);
 	if (domain)
@@ -711,8 +841,11 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm)
 	/* Update reference count on "struct tomoyo_domain_info". */
 	atomic_inc(&domain->users);
 	bprm->cred->security = domain;
-	if (need_kfree)
-		kfree(rn.name);
+	kfree(exename.name);
+	if (!retval) {
+		ee->r.domain = domain;
+		retval = tomoyo_environ(ee);
+	}
 	kfree(ee->tmp);
 	kfree(ee->dump.data);
 	kfree(ee);
@@ -732,7 +865,8 @@ bool tomoyo_dump_page(struct linux_binprm *bprm, unsigned long pos,
 		      struct tomoyo_page_dump *dump)
 {
 	struct page *page;
-	/* dump->data is released by tomoyo_finish_execve(). */
+
+	/* dump->data is released by tomoyo_find_next_domain(). */
 	if (!dump->data) {
 		dump->data = kzalloc(PAGE_SIZE, GFP_NOFS);
 		if (!dump->data)
@@ -753,6 +887,7 @@ bool tomoyo_dump_page(struct linux_binprm *bprm, unsigned long pos,
 		 * So do I.
 		 */
 		char *kaddr = kmap_atomic(page, KM_USER0);
+
 		dump->page = page;
 		memcpy(dump->data + offset, kaddr + offset,
 		       PAGE_SIZE - offset);
diff --git a/security/tomoyo/environ.c b/security/tomoyo/environ.c
new file mode 100644
index 000000000000..ad4c6e18a437
--- /dev/null
+++ b/security/tomoyo/environ.c
@@ -0,0 +1,122 @@
+/*
+ * security/tomoyo/environ.c
+ *
+ * Copyright (C) 2005-2011  NTT DATA CORPORATION
+ */
+
+#include "common.h"
+
+/**
+ * tomoyo_check_env_acl - Check permission for environment variable's name.
+ *
+ * @r:   Pointer to "struct tomoyo_request_info".
+ * @ptr: Pointer to "struct tomoyo_acl_info".
+ *
+ * Returns true if granted, false otherwise.
+ */
+static bool tomoyo_check_env_acl(struct tomoyo_request_info *r,
+				 const struct tomoyo_acl_info *ptr)
+{
+	const struct tomoyo_env_acl *acl =
+		container_of(ptr, typeof(*acl), head);
+
+	return tomoyo_path_matches_pattern(r->param.environ.name, acl->env);
+}
+
+/**
+ * tomoyo_audit_env_log - Audit environment variable name log.
+ *
+ * @r: Pointer to "struct tomoyo_request_info".
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+static int tomoyo_audit_env_log(struct tomoyo_request_info *r)
+{
+	return tomoyo_supervisor(r, "misc env %s\n",
+				 r->param.environ.name->name);
+}
+
+/**
+ * tomoyo_env_perm - Check permission for environment variable's name.
+ *
+ * @r:   Pointer to "struct tomoyo_request_info".
+ * @env: The name of environment variable.
+ *
+ * Returns 0 on success, negative value otherwise.
+ *
+ * Caller holds tomoyo_read_lock().
+ */
+int tomoyo_env_perm(struct tomoyo_request_info *r, const char *env)
+{
+	struct tomoyo_path_info environ;
+	int error;
+
+	if (!env || !*env)
+		return 0;
+	environ.name = env;
+	tomoyo_fill_path_info(&environ);
+	r->param_type = TOMOYO_TYPE_ENV_ACL;
+	r->param.environ.name = &environ;
+	do {
+		tomoyo_check_acl(r, tomoyo_check_env_acl);
+		error = tomoyo_audit_env_log(r);
+	} while (error == TOMOYO_RETRY_REQUEST);
+	return error;
+}
+
+/**
+ * tomoyo_same_env_acl - Check for duplicated "struct tomoyo_env_acl" entry.
+ *
+ * @a: Pointer to "struct tomoyo_acl_info".
+ * @b: Pointer to "struct tomoyo_acl_info".
+ *
+ * Returns true if @a == @b, false otherwise.
+ */
+static bool tomoyo_same_env_acl(const struct tomoyo_acl_info *a,
+				const struct tomoyo_acl_info *b)
+{
+	const struct tomoyo_env_acl *p1 = container_of(a, typeof(*p1), head);
+	const struct tomoyo_env_acl *p2 = container_of(b, typeof(*p2), head);
+
+	return p1->env == p2->env;
+}
+
+/**
+ * tomoyo_write_env - Write "struct tomoyo_env_acl" list.
+ *
+ * @param: Pointer to "struct tomoyo_acl_param".
+ *
+ * Returns 0 on success, negative value otherwise.
+ *
+ * Caller holds tomoyo_read_lock().
+ */
+static int tomoyo_write_env(struct tomoyo_acl_param *param)
+{
+	struct tomoyo_env_acl e = { .head.type = TOMOYO_TYPE_ENV_ACL };
+	int error = -ENOMEM;
+	const char *data = tomoyo_read_token(param);
+
+	if (!tomoyo_correct_word(data) || strchr(data, '='))
+		return -EINVAL;
+	e.env = tomoyo_get_name(data);
+	if (!e.env)
+		return error;
+	error = tomoyo_update_domain(&e.head, sizeof(e), param,
+				  tomoyo_same_env_acl, NULL);
+	tomoyo_put_name(e.env);
+	return error;
+}
+
+/**
+ * tomoyo_write_misc - Update environment variable list.
+ *
+ * @param: Pointer to "struct tomoyo_acl_param".
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+int tomoyo_write_misc(struct tomoyo_acl_param *param)
+{
+	if (tomoyo_str_starts(&param->data, "env "))
+		return tomoyo_write_env(param);
+	return -EINVAL;
+}
diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c
index 743c35f5084a..400390790745 100644
--- a/security/tomoyo/file.c
+++ b/security/tomoyo/file.c
@@ -555,8 +555,8 @@ static int tomoyo_update_path2_acl(const u8 perm,
  *
  * Caller holds tomoyo_read_lock().
  */
-int tomoyo_path_permission(struct tomoyo_request_info *r, u8 operation,
-			   const struct tomoyo_path_info *filename)
+static int tomoyo_path_permission(struct tomoyo_request_info *r, u8 operation,
+				  const struct tomoyo_path_info *filename)
 {
 	int error;
 
@@ -570,16 +570,42 @@ int tomoyo_path_permission(struct tomoyo_request_info *r, u8 operation,
 	do {
 		tomoyo_check_acl(r, tomoyo_check_path_acl);
 		error = tomoyo_audit_path_log(r);
-		/*
-		 * Do not retry for execute request, for alias may have
-		 * changed.
-		 */
-	} while (error == TOMOYO_RETRY_REQUEST &&
-		 operation != TOMOYO_TYPE_EXECUTE);
+	} while (error == TOMOYO_RETRY_REQUEST);
 	return error;
 }
 
 /**
+ * tomoyo_execute_permission - Check permission for execute operation.
+ *
+ * @r:         Pointer to "struct tomoyo_request_info".
+ * @filename:  Filename to check.
+ *
+ * Returns 0 on success, negative value otherwise.
+ *
+ * Caller holds tomoyo_read_lock().
+ */
+int tomoyo_execute_permission(struct tomoyo_request_info *r,
+			      const struct tomoyo_path_info *filename)
+{
+	/*
+	 * Unlike other permission checks, this check is done regardless of
+	 * profile mode settings in order to check for domain transition
+	 * preference.
+	 */
+	r->type = TOMOYO_MAC_FILE_EXECUTE;
+	r->mode = tomoyo_get_mode(r->domain->ns, r->profile, r->type);
+	r->param_type = TOMOYO_TYPE_PATH_ACL;
+	r->param.path.filename = filename;
+	r->param.path.operation = TOMOYO_TYPE_EXECUTE;
+	tomoyo_check_acl(r, tomoyo_check_path_acl);
+	r->ee->transition = r->matched_acl && r->matched_acl->cond ?
+		r->matched_acl->cond->transit : NULL;
+	if (r->mode != TOMOYO_CONFIG_DISABLED)
+		return tomoyo_audit_path_log(r);
+	return 0;
+}
+
+/**
  * tomoyo_same_path_number_acl - Check for duplicated "struct tomoyo_path_number_acl" entry.
  *
  * @a: Pointer to "struct tomoyo_acl_info".
diff --git a/security/tomoyo/gc.c b/security/tomoyo/gc.c
index ae135fbbbe95..986a6a756868 100644
--- a/security/tomoyo/gc.c
+++ b/security/tomoyo/gc.c
@@ -8,36 +8,26 @@
 #include <linux/kthread.h>
 #include <linux/slab.h>
 
+/**
+ * tomoyo_memory_free - Free memory for elements.
+ *
+ * @ptr:  Pointer to allocated memory.
+ *
+ * Returns nothing.
+ *
+ * Caller holds tomoyo_policy_lock mutex.
+ */
+static inline void tomoyo_memory_free(void *ptr)
+{
+	tomoyo_memory_used[TOMOYO_MEMORY_POLICY] -= ksize(ptr);
+	kfree(ptr);
+}
+
 /* The list for "struct tomoyo_io_buffer". */
 static LIST_HEAD(tomoyo_io_buffer_list);
 /* Lock for protecting tomoyo_io_buffer_list. */
 static DEFINE_SPINLOCK(tomoyo_io_buffer_list_lock);
 
-/* Size of an element. */
-static const u8 tomoyo_element_size[TOMOYO_MAX_POLICY] = {
-	[TOMOYO_ID_GROUP] = sizeof(struct tomoyo_group),
-	[TOMOYO_ID_PATH_GROUP] = sizeof(struct tomoyo_path_group),
-	[TOMOYO_ID_NUMBER_GROUP] = sizeof(struct tomoyo_number_group),
-	[TOMOYO_ID_AGGREGATOR] = sizeof(struct tomoyo_aggregator),
-	[TOMOYO_ID_TRANSITION_CONTROL] =
-	sizeof(struct tomoyo_transition_control),
-	[TOMOYO_ID_MANAGER] = sizeof(struct tomoyo_manager),
-	/* [TOMOYO_ID_CONDITION] = "struct tomoyo_condition"->size, */
-	/* [TOMOYO_ID_NAME] = "struct tomoyo_name"->size, */
-	/* [TOMOYO_ID_ACL] =
-	   tomoyo_acl_size["struct tomoyo_acl_info"->type], */
-	[TOMOYO_ID_DOMAIN] = sizeof(struct tomoyo_domain_info),
-};
-
-/* Size of a domain ACL element. */
-static const u8 tomoyo_acl_size[] = {
-	[TOMOYO_TYPE_PATH_ACL] = sizeof(struct tomoyo_path_acl),
-	[TOMOYO_TYPE_PATH2_ACL] = sizeof(struct tomoyo_path2_acl),
-	[TOMOYO_TYPE_PATH_NUMBER_ACL] = sizeof(struct tomoyo_path_number_acl),
-	[TOMOYO_TYPE_MKDEV_ACL] = sizeof(struct tomoyo_mkdev_acl),
-	[TOMOYO_TYPE_MOUNT_ACL] = sizeof(struct tomoyo_mount_acl),
-};
-
 /**
  * tomoyo_struct_used_by_io_buffer - Check whether the list element is used by /sys/kernel/security/tomoyo/ users or not.
  *
@@ -55,15 +45,11 @@ static bool tomoyo_struct_used_by_io_buffer(const struct list_head *element)
 	list_for_each_entry(head, &tomoyo_io_buffer_list, list) {
 		head->users++;
 		spin_unlock(&tomoyo_io_buffer_list_lock);
-		if (mutex_lock_interruptible(&head->io_sem)) {
-			in_use = true;
-			goto out;
-		}
+		mutex_lock(&head->io_sem);
 		if (head->r.domain == element || head->r.group == element ||
 		    head->r.acl == element || &head->w.domain->list == element)
 			in_use = true;
 		mutex_unlock(&head->io_sem);
-out:
 		spin_lock(&tomoyo_io_buffer_list_lock);
 		head->users--;
 		if (in_use)
@@ -77,15 +63,14 @@ out:
  * tomoyo_name_used_by_io_buffer - Check whether the string is used by /sys/kernel/security/tomoyo/ users or not.
  *
  * @string: String to check.
- * @size:   Memory allocated for @string .
  *
  * Returns true if @string is used by /sys/kernel/security/tomoyo/ users,
  * false otherwise.
  */
-static bool tomoyo_name_used_by_io_buffer(const char *string,
-					  const size_t size)
+static bool tomoyo_name_used_by_io_buffer(const char *string)
 {
 	struct tomoyo_io_buffer *head;
+	const size_t size = strlen(string) + 1;
 	bool in_use = false;
 
 	spin_lock(&tomoyo_io_buffer_list_lock);
@@ -93,10 +78,7 @@ static bool tomoyo_name_used_by_io_buffer(const char *string,
 		int i;
 		head->users++;
 		spin_unlock(&tomoyo_io_buffer_list_lock);
-		if (mutex_lock_interruptible(&head->io_sem)) {
-			in_use = true;
-			goto out;
-		}
+		mutex_lock(&head->io_sem);
 		for (i = 0; i < TOMOYO_MAX_IO_READ_QUEUE; i++) {
 			const char *w = head->r.w[i];
 			if (w < string || w > string + size)
@@ -105,7 +87,6 @@ static bool tomoyo_name_used_by_io_buffer(const char *string,
 			break;
 		}
 		mutex_unlock(&head->io_sem);
-out:
 		spin_lock(&tomoyo_io_buffer_list_lock);
 		head->users--;
 		if (in_use)
@@ -115,84 +96,6 @@ out:
 	return in_use;
 }
 
-/* Structure for garbage collection. */
-struct tomoyo_gc {
-	struct list_head list;
-	enum tomoyo_policy_id type;
-	size_t size;
-	struct list_head *element;
-};
-/* List of entries to be deleted. */
-static LIST_HEAD(tomoyo_gc_list);
-/* Length of tomoyo_gc_list. */
-static int tomoyo_gc_list_len;
-
-/**
- * tomoyo_add_to_gc - Add an entry to to be deleted list.
- *
- * @type:    One of values in "enum tomoyo_policy_id".
- * @element: Pointer to "struct list_head".
- *
- * Returns true on success, false otherwise.
- *
- * Caller holds tomoyo_policy_lock mutex.
- *
- * Adding an entry needs kmalloc(). Thus, if we try to add thousands of
- * entries at once, it will take too long time. Thus, do not add more than 128
- * entries per a scan. But to be able to handle worst case where all entries
- * are in-use, we accept one more entry per a scan.
- *
- * If we use singly linked list using "struct list_head"->prev (which is
- * LIST_POISON2), we can avoid kmalloc().
- */
-static bool tomoyo_add_to_gc(const int type, struct list_head *element)
-{
-	struct tomoyo_gc *entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
-	if (!entry)
-		return false;
-	entry->type = type;
-	if (type == TOMOYO_ID_ACL)
-		entry->size = tomoyo_acl_size[
-			      container_of(element,
-					   typeof(struct tomoyo_acl_info),
-					   list)->type];
-	else if (type == TOMOYO_ID_NAME)
-		entry->size = strlen(container_of(element,
-						  typeof(struct tomoyo_name),
-						  head.list)->entry.name) + 1;
-	else if (type == TOMOYO_ID_CONDITION)
-		entry->size =
-			container_of(element, typeof(struct tomoyo_condition),
-				     head.list)->size;
-	else
-		entry->size = tomoyo_element_size[type];
-	entry->element = element;
-	list_add(&entry->list, &tomoyo_gc_list);
-	list_del_rcu(element);
-	return tomoyo_gc_list_len++ < 128;
-}
-
-/**
- * tomoyo_element_linked_by_gc - Validate next element of an entry.
- *
- * @element: Pointer to an element.
- * @size:    Size of @element in byte.
- *
- * Returns true if @element is linked by other elements in the garbage
- * collector's queue, false otherwise.
- */
-static bool tomoyo_element_linked_by_gc(const u8 *element, const size_t size)
-{
-	struct tomoyo_gc *p;
-	list_for_each_entry(p, &tomoyo_gc_list, list) {
-		const u8 *ptr = (const u8 *) p->element->next;
-		if (ptr < element || element + size < ptr)
-			continue;
-		return true;
-	}
-	return false;
-}
-
 /**
  * tomoyo_del_transition_control - Delete members in "struct tomoyo_transition_control".
  *
@@ -200,7 +103,7 @@ static bool tomoyo_element_linked_by_gc(const u8 *element, const size_t size)
  *
  * Returns nothing.
  */
-static void tomoyo_del_transition_control(struct list_head *element)
+static inline void tomoyo_del_transition_control(struct list_head *element)
 {
 	struct tomoyo_transition_control *ptr =
 		container_of(element, typeof(*ptr), head.list);
@@ -215,7 +118,7 @@ static void tomoyo_del_transition_control(struct list_head *element)
  *
  * Returns nothing.
  */
-static void tomoyo_del_aggregator(struct list_head *element)
+static inline void tomoyo_del_aggregator(struct list_head *element)
 {
 	struct tomoyo_aggregator *ptr =
 		container_of(element, typeof(*ptr), head.list);
@@ -230,7 +133,7 @@ static void tomoyo_del_aggregator(struct list_head *element)
  *
  * Returns nothing.
  */
-static void tomoyo_del_manager(struct list_head *element)
+static inline void tomoyo_del_manager(struct list_head *element)
 {
 	struct tomoyo_manager *ptr =
 		container_of(element, typeof(*ptr), head.list);
@@ -293,6 +196,38 @@ static void tomoyo_del_acl(struct list_head *element)
 			tomoyo_put_number_union(&entry->flags);
 		}
 		break;
+	case TOMOYO_TYPE_ENV_ACL:
+		{
+			struct tomoyo_env_acl *entry =
+				container_of(acl, typeof(*entry), head);
+
+			tomoyo_put_name(entry->env);
+		}
+		break;
+	case TOMOYO_TYPE_INET_ACL:
+		{
+			struct tomoyo_inet_acl *entry =
+				container_of(acl, typeof(*entry), head);
+
+			tomoyo_put_group(entry->address.group);
+			tomoyo_put_number_union(&entry->port);
+		}
+		break;
+	case TOMOYO_TYPE_UNIX_ACL:
+		{
+			struct tomoyo_unix_acl *entry =
+				container_of(acl, typeof(*entry), head);
+
+			tomoyo_put_name_union(&entry->name);
+		}
+		break;
+	case TOMOYO_TYPE_MANUAL_TASK_ACL:
+		{
+			struct tomoyo_task_acl *entry =
+				container_of(acl, typeof(*entry), head);
+			tomoyo_put_name(entry->domainname);
+		}
+		break;
 	}
 }
 
@@ -301,44 +236,26 @@ static void tomoyo_del_acl(struct list_head *element)
  *
  * @element: Pointer to "struct list_head".
  *
- * Returns true if deleted, false otherwise.
+ * Returns nothing.
+ *
+ * Caller holds tomoyo_policy_lock mutex.
  */
-static bool tomoyo_del_domain(struct list_head *element)
+static inline void tomoyo_del_domain(struct list_head *element)
 {
 	struct tomoyo_domain_info *domain =
 		container_of(element, typeof(*domain), list);
 	struct tomoyo_acl_info *acl;
 	struct tomoyo_acl_info *tmp;
 	/*
-	 * Since we don't protect whole execve() operation using SRCU,
-	 * we need to recheck domain->users at this point.
-	 *
-	 * (1) Reader starts SRCU section upon execve().
-	 * (2) Reader traverses tomoyo_domain_list and finds this domain.
-	 * (3) Writer marks this domain as deleted.
-	 * (4) Garbage collector removes this domain from tomoyo_domain_list
-	 *     because this domain is marked as deleted and used by nobody.
-	 * (5) Reader saves reference to this domain into
-	 *     "struct linux_binprm"->cred->security .
-	 * (6) Reader finishes SRCU section, although execve() operation has
-	 *     not finished yet.
-	 * (7) Garbage collector waits for SRCU synchronization.
-	 * (8) Garbage collector kfree() this domain because this domain is
-	 *     used by nobody.
-	 * (9) Reader finishes execve() operation and restores this domain from
-	 *     "struct linux_binprm"->cred->security.
-	 *
-	 * By updating domain->users at (5), we can solve this race problem
-	 * by rechecking domain->users at (8).
+	 * Since this domain is referenced from neither
+	 * "struct tomoyo_io_buffer" nor "struct cred"->security, we can delete
+	 * elements without checking for is_deleted flag.
 	 */
-	if (atomic_read(&domain->users))
-		return false;
 	list_for_each_entry_safe(acl, tmp, &domain->acl_info_list, list) {
 		tomoyo_del_acl(&acl->list);
 		tomoyo_memory_free(acl);
 	}
 	tomoyo_put_name(domain->domainname);
-	return true;
 }
 
 /**
@@ -387,10 +304,9 @@ void tomoyo_del_condition(struct list_head *element)
  *
  * Returns nothing.
  */
-static void tomoyo_del_name(struct list_head *element)
+static inline void tomoyo_del_name(struct list_head *element)
 {
-	const struct tomoyo_name *ptr =
-		container_of(element, typeof(*ptr), head.list);
+	/* Nothing to do. */
 }
 
 /**
@@ -400,7 +316,7 @@ static void tomoyo_del_name(struct list_head *element)
  *
  * Returns nothing.
  */
-static void tomoyo_del_path_group(struct list_head *element)
+static inline void tomoyo_del_path_group(struct list_head *element)
 {
 	struct tomoyo_path_group *member =
 		container_of(element, typeof(*member), head.list);
@@ -414,7 +330,7 @@ static void tomoyo_del_path_group(struct list_head *element)
  *
  * Returns nothing.
  */
-static void tomoyo_del_group(struct list_head *element)
+static inline void tomoyo_del_group(struct list_head *element)
 {
 	struct tomoyo_group *group =
 		container_of(element, typeof(*group), head.list);
@@ -422,16 +338,128 @@ static void tomoyo_del_group(struct list_head *element)
 }
 
 /**
+ * tomoyo_del_address_group - Delete members in "struct tomoyo_address_group".
+ *
+ * @element: Pointer to "struct list_head".
+ *
+ * Returns nothing.
+ */
+static inline void tomoyo_del_address_group(struct list_head *element)
+{
+	/* Nothing to do. */
+}
+
+/**
  * tomoyo_del_number_group - Delete members in "struct tomoyo_number_group".
  *
  * @element: Pointer to "struct list_head".
  *
  * Returns nothing.
  */
-static void tomoyo_del_number_group(struct list_head *element)
+static inline void tomoyo_del_number_group(struct list_head *element)
 {
-	struct tomoyo_number_group *member =
-		container_of(element, typeof(*member), head.list);
+	/* Nothing to do. */
+}
+
+/**
+ * tomoyo_try_to_gc - Try to kfree() an entry.
+ *
+ * @type:    One of values in "enum tomoyo_policy_id".
+ * @element: Pointer to "struct list_head".
+ *
+ * Returns nothing.
+ *
+ * Caller holds tomoyo_policy_lock mutex.
+ */
+static void tomoyo_try_to_gc(const enum tomoyo_policy_id type,
+			     struct list_head *element)
+{
+	/*
+	 * __list_del_entry() guarantees that the list element became no longer
+	 * reachable from the list which the element was originally on (e.g.
+	 * tomoyo_domain_list). Also, synchronize_srcu() guarantees that the
+	 * list element became no longer referenced by syscall users.
+	 */
+	__list_del_entry(element);
+	mutex_unlock(&tomoyo_policy_lock);
+	synchronize_srcu(&tomoyo_ss);
+	/*
+	 * However, there are two users which may still be using the list
+	 * element. We need to defer until both users forget this element.
+	 *
+	 * Don't kfree() until "struct tomoyo_io_buffer"->r.{domain,group,acl}
+	 * and "struct tomoyo_io_buffer"->w.domain forget this element.
+	 */
+	if (tomoyo_struct_used_by_io_buffer(element))
+		goto reinject;
+	switch (type) {
+	case TOMOYO_ID_TRANSITION_CONTROL:
+		tomoyo_del_transition_control(element);
+		break;
+	case TOMOYO_ID_MANAGER:
+		tomoyo_del_manager(element);
+		break;
+	case TOMOYO_ID_AGGREGATOR:
+		tomoyo_del_aggregator(element);
+		break;
+	case TOMOYO_ID_GROUP:
+		tomoyo_del_group(element);
+		break;
+	case TOMOYO_ID_PATH_GROUP:
+		tomoyo_del_path_group(element);
+		break;
+	case TOMOYO_ID_ADDRESS_GROUP:
+		tomoyo_del_address_group(element);
+		break;
+	case TOMOYO_ID_NUMBER_GROUP:
+		tomoyo_del_number_group(element);
+		break;
+	case TOMOYO_ID_CONDITION:
+		tomoyo_del_condition(element);
+		break;
+	case TOMOYO_ID_NAME:
+		/*
+		 * Don't kfree() until all "struct tomoyo_io_buffer"->r.w[]
+		 * forget this element.
+		 */
+		if (tomoyo_name_used_by_io_buffer
+		    (container_of(element, typeof(struct tomoyo_name),
+				  head.list)->entry.name))
+			goto reinject;
+		tomoyo_del_name(element);
+		break;
+	case TOMOYO_ID_ACL:
+		tomoyo_del_acl(element);
+		break;
+	case TOMOYO_ID_DOMAIN:
+		/*
+		 * Don't kfree() until all "struct cred"->security forget this
+		 * element.
+		 */
+		if (atomic_read(&container_of
+				(element, typeof(struct tomoyo_domain_info),
+				 list)->users))
+			goto reinject;
+		break;
+	case TOMOYO_MAX_POLICY:
+		break;
+	}
+	mutex_lock(&tomoyo_policy_lock);
+	if (type == TOMOYO_ID_DOMAIN)
+		tomoyo_del_domain(element);
+	tomoyo_memory_free(element);
+	return;
+reinject:
+	/*
+	 * We can safely reinject this element here bacause
+	 * (1) Appending list elements and removing list elements are protected
+	 *     by tomoyo_policy_lock mutex.
+	 * (2) Only this function removes list elements and this function is
+	 *     exclusively executed by tomoyo_gc_mutex mutex.
+	 * are true.
+	 */
+	mutex_lock(&tomoyo_policy_lock);
+	list_add_rcu(element, element->prev);
 }
 
 /**
@@ -440,19 +468,19 @@ static void tomoyo_del_number_group(struct list_head *element)
  * @id:          One of values in "enum tomoyo_policy_id".
  * @member_list: Pointer to "struct list_head".
  *
- * Returns true if some elements are deleted, false otherwise.
+ * Returns nothing.
  */
-static bool tomoyo_collect_member(const enum tomoyo_policy_id id,
+static void tomoyo_collect_member(const enum tomoyo_policy_id id,
 				  struct list_head *member_list)
 {
 	struct tomoyo_acl_head *member;
-	list_for_each_entry(member, member_list, list) {
+	struct tomoyo_acl_head *tmp;
+	list_for_each_entry_safe(member, tmp, member_list, list) {
 		if (!member->is_deleted)
 			continue;
-		if (!tomoyo_add_to_gc(id, &member->list))
-			return false;
+		member->is_deleted = TOMOYO_GC_IN_PROGRESS;
+		tomoyo_try_to_gc(id, &member->list);
 	}
-	return true;
 }
 
 /**
@@ -460,22 +488,22 @@ static bool tomoyo_collect_member(const enum tomoyo_policy_id id,
  *
  * @list: Pointer to "struct list_head".
  *
- * Returns true if some elements are deleted, false otherwise.
+ * Returns nothing.
  */
-static bool tomoyo_collect_acl(struct list_head *list)
+static void tomoyo_collect_acl(struct list_head *list)
 {
 	struct tomoyo_acl_info *acl;
-	list_for_each_entry(acl, list, list) {
+	struct tomoyo_acl_info *tmp;
+	list_for_each_entry_safe(acl, tmp, list, list) {
 		if (!acl->is_deleted)
 			continue;
-		if (!tomoyo_add_to_gc(TOMOYO_ID_ACL, &acl->list))
-			return false;
+		acl->is_deleted = TOMOYO_GC_IN_PROGRESS;
+		tomoyo_try_to_gc(TOMOYO_ID_ACL, &acl->list);
 	}
-	return true;
 }
 
 /**
- * tomoyo_collect_entry - Scan lists for deleted elements.
+ * tomoyo_collect_entry - Try to kfree() deleted elements.
  *
  * Returns nothing.
  */
@@ -484,174 +512,82 @@ static void tomoyo_collect_entry(void)
 	int i;
 	enum tomoyo_policy_id id;
 	struct tomoyo_policy_namespace *ns;
-	int idx;
-	if (mutex_lock_interruptible(&tomoyo_policy_lock))
-		return;
-	idx = tomoyo_read_lock();
+	mutex_lock(&tomoyo_policy_lock);
 	{
 		struct tomoyo_domain_info *domain;
-		list_for_each_entry_rcu(domain, &tomoyo_domain_list, list) {
-			if (!tomoyo_collect_acl(&domain->acl_info_list))
-				goto unlock;
+		struct tomoyo_domain_info *tmp;
+		list_for_each_entry_safe(domain, tmp, &tomoyo_domain_list,
+					 list) {
+			tomoyo_collect_acl(&domain->acl_info_list);
 			if (!domain->is_deleted || atomic_read(&domain->users))
 				continue;
-			/*
-			 * Nobody is referring this domain. But somebody may
-			 * refer this domain after successful execve().
-			 * We recheck domain->users after SRCU synchronization.
-			 */
-			if (!tomoyo_add_to_gc(TOMOYO_ID_DOMAIN, &domain->list))
-				goto unlock;
+			tomoyo_try_to_gc(TOMOYO_ID_DOMAIN, &domain->list);
 		}
 	}
-	list_for_each_entry_rcu(ns, &tomoyo_namespace_list, namespace_list) {
+	list_for_each_entry(ns, &tomoyo_namespace_list, namespace_list) {
 		for (id = 0; id < TOMOYO_MAX_POLICY; id++)
-			if (!tomoyo_collect_member(id, &ns->policy_list[id]))
-				goto unlock;
+			tomoyo_collect_member(id, &ns->policy_list[id]);
 		for (i = 0; i < TOMOYO_MAX_ACL_GROUPS; i++)
-			if (!tomoyo_collect_acl(&ns->acl_group[i]))
-				goto unlock;
+			tomoyo_collect_acl(&ns->acl_group[i]);
+	}
+	{
+		struct tomoyo_shared_acl_head *ptr;
+		struct tomoyo_shared_acl_head *tmp;
+		list_for_each_entry_safe(ptr, tmp, &tomoyo_condition_list,
+					 list) {
+			if (atomic_read(&ptr->users) > 0)
+				continue;
+			atomic_set(&ptr->users, TOMOYO_GC_IN_PROGRESS);
+			tomoyo_try_to_gc(TOMOYO_ID_CONDITION, &ptr->list);
+		}
+	}
+	list_for_each_entry(ns, &tomoyo_namespace_list, namespace_list) {
 		for (i = 0; i < TOMOYO_MAX_GROUP; i++) {
 			struct list_head *list = &ns->group_list[i];
 			struct tomoyo_group *group;
+			struct tomoyo_group *tmp;
 			switch (i) {
 			case 0:
 				id = TOMOYO_ID_PATH_GROUP;
 				break;
-			default:
+			case 1:
 				id = TOMOYO_ID_NUMBER_GROUP;
 				break;
+			default:
+				id = TOMOYO_ID_ADDRESS_GROUP;
+				break;
 			}
-			list_for_each_entry(group, list, head.list) {
-				if (!tomoyo_collect_member
-				    (id, &group->member_list))
-					goto unlock;
+			list_for_each_entry_safe(group, tmp, list, head.list) {
+				tomoyo_collect_member(id, &group->member_list);
 				if (!list_empty(&group->member_list) ||
-				    atomic_read(&group->head.users))
+				    atomic_read(&group->head.users) > 0)
 					continue;
-				if (!tomoyo_add_to_gc(TOMOYO_ID_GROUP,
-						      &group->head.list))
-					goto unlock;
+				atomic_set(&group->head.users,
+					   TOMOYO_GC_IN_PROGRESS);
+				tomoyo_try_to_gc(TOMOYO_ID_GROUP,
+						 &group->head.list);
 			}
 		}
 	}
-	id = TOMOYO_ID_CONDITION;
-	for (i = 0; i < TOMOYO_MAX_HASH + 1; i++) {
-		struct list_head *list = !i ?
-			&tomoyo_condition_list : &tomoyo_name_list[i - 1];
+	for (i = 0; i < TOMOYO_MAX_HASH; i++) {
+		struct list_head *list = &tomoyo_name_list[i];
 		struct tomoyo_shared_acl_head *ptr;
-		list_for_each_entry(ptr, list, list) {
-			if (atomic_read(&ptr->users))
+		struct tomoyo_shared_acl_head *tmp;
+		list_for_each_entry_safe(ptr, tmp, list, list) {
+			if (atomic_read(&ptr->users) > 0)
 				continue;
-			if (!tomoyo_add_to_gc(id, &ptr->list))
-				goto unlock;
+			atomic_set(&ptr->users, TOMOYO_GC_IN_PROGRESS);
+			tomoyo_try_to_gc(TOMOYO_ID_NAME, &ptr->list);
 		}
-		id = TOMOYO_ID_NAME;
 	}
-unlock:
-	tomoyo_read_unlock(idx);
 	mutex_unlock(&tomoyo_policy_lock);
 }
 
 /**
- * tomoyo_kfree_entry - Delete entries in tomoyo_gc_list.
- *
- * Returns true if some entries were kfree()d, false otherwise.
- */
-static bool tomoyo_kfree_entry(void)
-{
-	struct tomoyo_gc *p;
-	struct tomoyo_gc *tmp;
-	bool result = false;
-
-	list_for_each_entry_safe(p, tmp, &tomoyo_gc_list, list) {
-		struct list_head *element = p->element;
-
-		/*
-		 * list_del_rcu() in tomoyo_add_to_gc() guarantees that the
-		 * list element became no longer reachable from the list which
-		 * the element was originally on (e.g. tomoyo_domain_list).
-		 * Also, synchronize_srcu() in tomoyo_gc_thread() guarantees
-		 * that the list element became no longer referenced by syscall
-		 * users.
-		 *
-		 * However, there are three users which may still be using the
-		 * list element. We need to defer until all of these users
-		 * forget the list element.
-		 *
-		 * Firstly, defer until "struct tomoyo_io_buffer"->r.{domain,
-		 * group,acl} and "struct tomoyo_io_buffer"->w.domain forget
-		 * the list element.
-		 */
-		if (tomoyo_struct_used_by_io_buffer(element))
-			continue;
-		/*
-		 * Secondly, defer until all other elements in the
-		 * tomoyo_gc_list list forget the list element.
-		 */
-		if (tomoyo_element_linked_by_gc((const u8 *) element, p->size))
-			continue;
-		switch (p->type) {
-		case TOMOYO_ID_TRANSITION_CONTROL:
-			tomoyo_del_transition_control(element);
-			break;
-		case TOMOYO_ID_AGGREGATOR:
-			tomoyo_del_aggregator(element);
-			break;
-		case TOMOYO_ID_MANAGER:
-			tomoyo_del_manager(element);
-			break;
-		case TOMOYO_ID_CONDITION:
-			tomoyo_del_condition(element);
-			break;
-		case TOMOYO_ID_NAME:
-			/*
-			 * Thirdly, defer until all "struct tomoyo_io_buffer"
-			 * ->r.w[] forget the list element.
-			 */
-			if (tomoyo_name_used_by_io_buffer(
-			    container_of(element, typeof(struct tomoyo_name),
-					 head.list)->entry.name, p->size))
-				continue;
-			tomoyo_del_name(element);
-			break;
-		case TOMOYO_ID_ACL:
-			tomoyo_del_acl(element);
-			break;
-		case TOMOYO_ID_DOMAIN:
-			if (!tomoyo_del_domain(element))
-				continue;
-			break;
-		case TOMOYO_ID_PATH_GROUP:
-			tomoyo_del_path_group(element);
-			break;
-		case TOMOYO_ID_GROUP:
-			tomoyo_del_group(element);
-			break;
-		case TOMOYO_ID_NUMBER_GROUP:
-			tomoyo_del_number_group(element);
-			break;
-		case TOMOYO_MAX_POLICY:
-			break;
-		}
-		tomoyo_memory_free(element);
-		list_del(&p->list);
-		kfree(p);
-		tomoyo_gc_list_len--;
-		result = true;
-	}
-	return result;
-}
-
-/**
  * tomoyo_gc_thread - Garbage collector thread function.
  *
  * @unused: Unused.
  *
- * In case OOM-killer choose this thread for termination, we create this thread
- * as a short live thread whenever /sys/kernel/security/tomoyo/ interface was
- * close()d.
- *
  * Returns 0.
  */
 static int tomoyo_gc_thread(void *unused)
@@ -660,13 +596,7 @@ static int tomoyo_gc_thread(void *unused)
 	static DEFINE_MUTEX(tomoyo_gc_mutex);
 	if (!mutex_trylock(&tomoyo_gc_mutex))
 		goto out;
-	daemonize("GC for TOMOYO");
-	do {
-		tomoyo_collect_entry();
-		if (list_empty(&tomoyo_gc_list))
-			break;
-		synchronize_srcu(&tomoyo_ss);
-	} while (tomoyo_kfree_entry());
+	tomoyo_collect_entry();
 	{
 		struct tomoyo_io_buffer *head;
 		struct tomoyo_io_buffer *tmp;
diff --git a/security/tomoyo/group.c b/security/tomoyo/group.c
index 5fb0e1298400..50092534ec54 100644
--- a/security/tomoyo/group.c
+++ b/security/tomoyo/group.c
@@ -42,7 +42,26 @@ static bool tomoyo_same_number_group(const struct tomoyo_acl_head *a,
 }
 
 /**
- * tomoyo_write_group - Write "struct tomoyo_path_group"/"struct tomoyo_number_group" list.
+ * tomoyo_same_address_group - Check for duplicated "struct tomoyo_address_group" entry.
+ *
+ * @a: Pointer to "struct tomoyo_acl_head".
+ * @b: Pointer to "struct tomoyo_acl_head".
+ *
+ * Returns true if @a == @b, false otherwise.
+ */
+static bool tomoyo_same_address_group(const struct tomoyo_acl_head *a,
+				      const struct tomoyo_acl_head *b)
+{
+	const struct tomoyo_address_group *p1 = container_of(a, typeof(*p1),
+							     head);
+	const struct tomoyo_address_group *p2 = container_of(b, typeof(*p2),
+							     head);
+
+	return tomoyo_same_ipaddr_union(&p1->address, &p2->address);
+}
+
+/**
+ * tomoyo_write_group - Write "struct tomoyo_path_group"/"struct tomoyo_number_group"/"struct tomoyo_address_group" list.
  *
  * @param: Pointer to "struct tomoyo_acl_param".
  * @type:  Type of this group.
@@ -77,6 +96,14 @@ int tomoyo_write_group(struct tomoyo_acl_param *param, const u8 type)
 		 * tomoyo_put_number_union() is not needed because
 		 * param->data[0] != '@'.
 		 */
+	} else {
+		struct tomoyo_address_group e = { };
+
+		if (param->data[0] == '@' ||
+		    !tomoyo_parse_ipaddr_union(param, &e.address))
+			goto out;
+		error = tomoyo_update_policy(&e.head, sizeof(e), param,
+					     tomoyo_same_address_group);
 	}
 out:
 	tomoyo_put_group(group);
@@ -137,3 +164,35 @@ bool tomoyo_number_matches_group(const unsigned long min,
 	}
 	return matched;
 }
+
+/**
+ * tomoyo_address_matches_group - Check whether the given address matches members of the given address group.
+ *
+ * @is_ipv6: True if @address is an IPv6 address.
+ * @address: An IPv4 or IPv6 address.
+ * @group:   Pointer to "struct tomoyo_address_group".
+ *
+ * Returns true if @address matches addresses in @group group, false otherwise.
+ *
+ * Caller holds tomoyo_read_lock().
+ */
+bool tomoyo_address_matches_group(const bool is_ipv6, const __be32 *address,
+				  const struct tomoyo_group *group)
+{
+	struct tomoyo_address_group *member;
+	bool matched = false;
+	const u8 size = is_ipv6 ? 16 : 4;
+
+	list_for_each_entry_rcu(member, &group->member_list, head.list) {
+		if (member->head.is_deleted)
+			continue;
+		if (member->address.is_ipv6 != is_ipv6)
+			continue;
+		if (memcmp(&member->address.ip[0], address, size) > 0 ||
+		    memcmp(address, &member->address.ip[1], size) > 0)
+			continue;
+		matched = true;
+		break;
+	}
+	return matched;
+}
diff --git a/security/tomoyo/memory.c b/security/tomoyo/memory.c
index 7a56051146c2..0e995716cc25 100644
--- a/security/tomoyo/memory.c
+++ b/security/tomoyo/memory.c
@@ -27,8 +27,6 @@ void tomoyo_warn_oom(const char *function)
 		panic("MAC Initialization failed.\n");
 }
 
-/* Lock for protecting tomoyo_memory_used. */
-static DEFINE_SPINLOCK(tomoyo_policy_memory_lock);
 /* Memoy currently used by policy/audit log/query. */
 unsigned int tomoyo_memory_used[TOMOYO_MAX_MEMORY_STAT];
 /* Memory quota for "policy"/"audit log"/"query". */
@@ -42,22 +40,19 @@ unsigned int tomoyo_memory_quota[TOMOYO_MAX_MEMORY_STAT];
  * Returns true on success, false otherwise.
  *
  * Returns true if @ptr is not NULL and quota not exceeded, false otherwise.
+ *
+ * Caller holds tomoyo_policy_lock mutex.
  */
 bool tomoyo_memory_ok(void *ptr)
 {
 	if (ptr) {
 		const size_t s = ksize(ptr);
-		bool result;
-		spin_lock(&tomoyo_policy_memory_lock);
 		tomoyo_memory_used[TOMOYO_MEMORY_POLICY] += s;
-		result = !tomoyo_memory_quota[TOMOYO_MEMORY_POLICY] ||
-			tomoyo_memory_used[TOMOYO_MEMORY_POLICY] <=
-			tomoyo_memory_quota[TOMOYO_MEMORY_POLICY];
-		if (!result)
-			tomoyo_memory_used[TOMOYO_MEMORY_POLICY] -= s;
-		spin_unlock(&tomoyo_policy_memory_lock);
-		if (result)
+		if (!tomoyo_memory_quota[TOMOYO_MEMORY_POLICY] ||
+		    tomoyo_memory_used[TOMOYO_MEMORY_POLICY] <=
+		    tomoyo_memory_quota[TOMOYO_MEMORY_POLICY])
 			return true;
+		tomoyo_memory_used[TOMOYO_MEMORY_POLICY] -= s;
 	}
 	tomoyo_warn_oom(__func__);
 	return false;
@@ -71,6 +66,8 @@ bool tomoyo_memory_ok(void *ptr)
  *
  * Returns pointer to allocated memory on success, NULL otherwise.
  * @data is zero-cleared on success.
+ *
+ * Caller holds tomoyo_policy_lock mutex.
  */
 void *tomoyo_commit_ok(void *data, const unsigned int size)
 {
@@ -85,20 +82,6 @@ void *tomoyo_commit_ok(void *data, const unsigned int size)
 }
 
 /**
- * tomoyo_memory_free - Free memory for elements.
- *
- * @ptr:  Pointer to allocated memory.
- */
-void tomoyo_memory_free(void *ptr)
-{
-	size_t s = ksize(ptr);
-	spin_lock(&tomoyo_policy_memory_lock);
-	tomoyo_memory_used[TOMOYO_MEMORY_POLICY] -= s;
-	spin_unlock(&tomoyo_policy_memory_lock);
-	kfree(ptr);
-}
-
-/**
  * tomoyo_get_group - Allocate memory for "struct tomoyo_path_group"/"struct tomoyo_number_group".
  *
  * @param: Pointer to "struct tomoyo_acl_param".
@@ -123,7 +106,8 @@ struct tomoyo_group *tomoyo_get_group(struct tomoyo_acl_param *param,
 		goto out;
 	list = &param->ns->group_list[idx];
 	list_for_each_entry(group, list, head.list) {
-		if (e.group_name != group->group_name)
+		if (e.group_name != group->group_name ||
+		    atomic_read(&group->head.users) == TOMOYO_GC_IN_PROGRESS)
 			continue;
 		atomic_inc(&group->head.users);
 		found = true;
@@ -175,7 +159,8 @@ const struct tomoyo_path_info *tomoyo_get_name(const char *name)
 	if (mutex_lock_interruptible(&tomoyo_policy_lock))
 		return NULL;
 	list_for_each_entry(ptr, head, head.list) {
-		if (hash != ptr->entry.hash || strcmp(name, ptr->entry.name))
+		if (hash != ptr->entry.hash || strcmp(name, ptr->entry.name) ||
+		    atomic_read(&ptr->head.users) == TOMOYO_GC_IN_PROGRESS)
 			continue;
 		atomic_inc(&ptr->head.users);
 		goto out;
diff --git a/security/tomoyo/network.c b/security/tomoyo/network.c
new file mode 100644
index 000000000000..97527710a72a
--- /dev/null
+++ b/security/tomoyo/network.c
@@ -0,0 +1,771 @@
+/*
+ * security/tomoyo/network.c
+ *
+ * Copyright (C) 2005-2011  NTT DATA CORPORATION
+ */
+
+#include "common.h"
+#include <linux/slab.h>
+
+/* Structure for holding inet domain socket's address. */
+struct tomoyo_inet_addr_info {
+	__be16 port;           /* In network byte order. */
+	const __be32 *address; /* In network byte order. */
+	bool is_ipv6;
+};
+
+/* Structure for holding unix domain socket's address. */
+struct tomoyo_unix_addr_info {
+	u8 *addr; /* This may not be '\0' terminated string. */
+	unsigned int addr_len;
+};
+
+/* Structure for holding socket address. */
+struct tomoyo_addr_info {
+	u8 protocol;
+	u8 operation;
+	struct tomoyo_inet_addr_info inet;
+	struct tomoyo_unix_addr_info unix0;
+};
+
+/* String table for socket's protocols. */
+const char * const tomoyo_proto_keyword[TOMOYO_SOCK_MAX] = {
+	[SOCK_STREAM]    = "stream",
+	[SOCK_DGRAM]     = "dgram",
+	[SOCK_RAW]       = "raw",
+	[SOCK_SEQPACKET] = "seqpacket",
+	[0] = " ", /* Dummy for avoiding NULL pointer dereference. */
+	[4] = " ", /* Dummy for avoiding NULL pointer dereference. */
+};
+
+/**
+ * tomoyo_parse_ipaddr_union - Parse an IP address.
+ *
+ * @param: Pointer to "struct tomoyo_acl_param".
+ * @ptr:   Pointer to "struct tomoyo_ipaddr_union".
+ *
+ * Returns true on success, false otherwise.
+ */
+bool tomoyo_parse_ipaddr_union(struct tomoyo_acl_param *param,
+			       struct tomoyo_ipaddr_union *ptr)
+{
+	u8 * const min = ptr->ip[0].in6_u.u6_addr8;
+	u8 * const max = ptr->ip[1].in6_u.u6_addr8;
+	char *address = tomoyo_read_token(param);
+	const char *end;
+
+	if (!strchr(address, ':') &&
+	    in4_pton(address, -1, min, '-', &end) > 0) {
+		ptr->is_ipv6 = false;
+		if (!*end)
+			ptr->ip[1].s6_addr32[0] = ptr->ip[0].s6_addr32[0];
+		else if (*end++ != '-' ||
+			 in4_pton(end, -1, max, '\0', &end) <= 0 || *end)
+			return false;
+		return true;
+	}
+	if (in6_pton(address, -1, min, '-', &end) > 0) {
+		ptr->is_ipv6 = true;
+		if (!*end)
+			memmove(max, min, sizeof(u16) * 8);
+		else if (*end++ != '-' ||
+			 in6_pton(end, -1, max, '\0', &end) <= 0 || *end)
+			return false;
+		return true;
+	}
+	return false;
+}
+
+/**
+ * tomoyo_print_ipv4 - Print an IPv4 address.
+ *
+ * @buffer:     Buffer to write to.
+ * @buffer_len: Size of @buffer.
+ * @min_ip:     Pointer to __be32.
+ * @max_ip:     Pointer to __be32.
+ *
+ * Returns nothing.
+ */
+static void tomoyo_print_ipv4(char *buffer, const unsigned int buffer_len,
+			      const __be32 *min_ip, const __be32 *max_ip)
+{
+	snprintf(buffer, buffer_len, "%pI4%c%pI4", min_ip,
+		 *min_ip == *max_ip ? '\0' : '-', max_ip);
+}
+
+/**
+ * tomoyo_print_ipv6 - Print an IPv6 address.
+ *
+ * @buffer:     Buffer to write to.
+ * @buffer_len: Size of @buffer.
+ * @min_ip:     Pointer to "struct in6_addr".
+ * @max_ip:     Pointer to "struct in6_addr".
+ *
+ * Returns nothing.
+ */
+static void tomoyo_print_ipv6(char *buffer, const unsigned int buffer_len,
+			      const struct in6_addr *min_ip,
+			      const struct in6_addr *max_ip)
+{
+	snprintf(buffer, buffer_len, "%pI6c%c%pI6c", min_ip,
+		 !memcmp(min_ip, max_ip, 16) ? '\0' : '-', max_ip);
+}
+
+/**
+ * tomoyo_print_ip - Print an IP address.
+ *
+ * @buf:  Buffer to write to.
+ * @size: Size of @buf.
+ * @ptr:  Pointer to "struct ipaddr_union".
+ *
+ * Returns nothing.
+ */
+void tomoyo_print_ip(char *buf, const unsigned int size,
+		     const struct tomoyo_ipaddr_union *ptr)
+{
+	if (ptr->is_ipv6)
+		tomoyo_print_ipv6(buf, size, &ptr->ip[0], &ptr->ip[1]);
+	else
+		tomoyo_print_ipv4(buf, size, &ptr->ip[0].s6_addr32[0],
+				  &ptr->ip[1].s6_addr32[0]);
+}
+
+/*
+ * Mapping table from "enum tomoyo_network_acl_index" to
+ * "enum tomoyo_mac_index" for inet domain socket.
+ */
+static const u8 tomoyo_inet2mac
+[TOMOYO_SOCK_MAX][TOMOYO_MAX_NETWORK_OPERATION] = {
+	[SOCK_STREAM] = {
+		[TOMOYO_NETWORK_BIND]    = TOMOYO_MAC_NETWORK_INET_STREAM_BIND,
+		[TOMOYO_NETWORK_LISTEN]  =
+		TOMOYO_MAC_NETWORK_INET_STREAM_LISTEN,
+		[TOMOYO_NETWORK_CONNECT] =
+		TOMOYO_MAC_NETWORK_INET_STREAM_CONNECT,
+	},
+	[SOCK_DGRAM] = {
+		[TOMOYO_NETWORK_BIND]    = TOMOYO_MAC_NETWORK_INET_DGRAM_BIND,
+		[TOMOYO_NETWORK_SEND]    = TOMOYO_MAC_NETWORK_INET_DGRAM_SEND,
+	},
+	[SOCK_RAW]    = {
+		[TOMOYO_NETWORK_BIND]    = TOMOYO_MAC_NETWORK_INET_RAW_BIND,
+		[TOMOYO_NETWORK_SEND]    = TOMOYO_MAC_NETWORK_INET_RAW_SEND,
+	},
+};
+
+/*
+ * Mapping table from "enum tomoyo_network_acl_index" to
+ * "enum tomoyo_mac_index" for unix domain socket.
+ */
+static const u8 tomoyo_unix2mac
+[TOMOYO_SOCK_MAX][TOMOYO_MAX_NETWORK_OPERATION] = {
+	[SOCK_STREAM] = {
+		[TOMOYO_NETWORK_BIND]    = TOMOYO_MAC_NETWORK_UNIX_STREAM_BIND,
+		[TOMOYO_NETWORK_LISTEN]  =
+		TOMOYO_MAC_NETWORK_UNIX_STREAM_LISTEN,
+		[TOMOYO_NETWORK_CONNECT] =
+		TOMOYO_MAC_NETWORK_UNIX_STREAM_CONNECT,
+	},
+	[SOCK_DGRAM] = {
+		[TOMOYO_NETWORK_BIND]    = TOMOYO_MAC_NETWORK_UNIX_DGRAM_BIND,
+		[TOMOYO_NETWORK_SEND]    = TOMOYO_MAC_NETWORK_UNIX_DGRAM_SEND,
+	},
+	[SOCK_SEQPACKET] = {
+		[TOMOYO_NETWORK_BIND]    =
+		TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_BIND,
+		[TOMOYO_NETWORK_LISTEN]  =
+		TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_LISTEN,
+		[TOMOYO_NETWORK_CONNECT] =
+		TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_CONNECT,
+	},
+};
+
+/**
+ * tomoyo_same_inet_acl - Check for duplicated "struct tomoyo_inet_acl" entry.
+ *
+ * @a: Pointer to "struct tomoyo_acl_info".
+ * @b: Pointer to "struct tomoyo_acl_info".
+ *
+ * Returns true if @a == @b except permission bits, false otherwise.
+ */
+static bool tomoyo_same_inet_acl(const struct tomoyo_acl_info *a,
+				 const struct tomoyo_acl_info *b)
+{
+	const struct tomoyo_inet_acl *p1 = container_of(a, typeof(*p1), head);
+	const struct tomoyo_inet_acl *p2 = container_of(b, typeof(*p2), head);
+
+	return p1->protocol == p2->protocol &&
+		tomoyo_same_ipaddr_union(&p1->address, &p2->address) &&
+		tomoyo_same_number_union(&p1->port, &p2->port);
+}
+
+/**
+ * tomoyo_same_unix_acl - Check for duplicated "struct tomoyo_unix_acl" entry.
+ *
+ * @a: Pointer to "struct tomoyo_acl_info".
+ * @b: Pointer to "struct tomoyo_acl_info".
+ *
+ * Returns true if @a == @b except permission bits, false otherwise.
+ */
+static bool tomoyo_same_unix_acl(const struct tomoyo_acl_info *a,
+				 const struct tomoyo_acl_info *b)
+{
+	const struct tomoyo_unix_acl *p1 = container_of(a, typeof(*p1), head);
+	const struct tomoyo_unix_acl *p2 = container_of(b, typeof(*p2), head);
+
+	return p1->protocol == p2->protocol &&
+		tomoyo_same_name_union(&p1->name, &p2->name);
+}
+
+/**
+ * tomoyo_merge_inet_acl - Merge duplicated "struct tomoyo_inet_acl" entry.
+ *
+ * @a:         Pointer to "struct tomoyo_acl_info".
+ * @b:         Pointer to "struct tomoyo_acl_info".
+ * @is_delete: True for @a &= ~@b, false for @a |= @b.
+ *
+ * Returns true if @a is empty, false otherwise.
+ */
+static bool tomoyo_merge_inet_acl(struct tomoyo_acl_info *a,
+				  struct tomoyo_acl_info *b,
+				  const bool is_delete)
+{
+	u8 * const a_perm =
+		&container_of(a, struct tomoyo_inet_acl, head)->perm;
+	u8 perm = *a_perm;
+	const u8 b_perm = container_of(b, struct tomoyo_inet_acl, head)->perm;
+
+	if (is_delete)
+		perm &= ~b_perm;
+	else
+		perm |= b_perm;
+	*a_perm = perm;
+	return !perm;
+}
+
+/**
+ * tomoyo_merge_unix_acl - Merge duplicated "struct tomoyo_unix_acl" entry.
+ *
+ * @a:         Pointer to "struct tomoyo_acl_info".
+ * @b:         Pointer to "struct tomoyo_acl_info".
+ * @is_delete: True for @a &= ~@b, false for @a |= @b.
+ *
+ * Returns true if @a is empty, false otherwise.
+ */
+static bool tomoyo_merge_unix_acl(struct tomoyo_acl_info *a,
+				  struct tomoyo_acl_info *b,
+				  const bool is_delete)
+{
+	u8 * const a_perm =
+		&container_of(a, struct tomoyo_unix_acl, head)->perm;
+	u8 perm = *a_perm;
+	const u8 b_perm = container_of(b, struct tomoyo_unix_acl, head)->perm;
+
+	if (is_delete)
+		perm &= ~b_perm;
+	else
+		perm |= b_perm;
+	*a_perm = perm;
+	return !perm;
+}
+
+/**
+ * tomoyo_write_inet_network - Write "struct tomoyo_inet_acl" list.
+ *
+ * @param: Pointer to "struct tomoyo_acl_param".
+ *
+ * Returns 0 on success, negative value otherwise.
+ *
+ * Caller holds tomoyo_read_lock().
+ */
+int tomoyo_write_inet_network(struct tomoyo_acl_param *param)
+{
+	struct tomoyo_inet_acl e = { .head.type = TOMOYO_TYPE_INET_ACL };
+	int error = -EINVAL;
+	u8 type;
+	const char *protocol = tomoyo_read_token(param);
+	const char *operation = tomoyo_read_token(param);
+
+	for (e.protocol = 0; e.protocol < TOMOYO_SOCK_MAX; e.protocol++)
+		if (!strcmp(protocol, tomoyo_proto_keyword[e.protocol]))
+			break;
+	for (type = 0; type < TOMOYO_MAX_NETWORK_OPERATION; type++)
+		if (tomoyo_permstr(operation, tomoyo_socket_keyword[type]))
+			e.perm |= 1 << type;
+	if (e.protocol == TOMOYO_SOCK_MAX || !e.perm)
+		return -EINVAL;
+	if (param->data[0] == '@') {
+		param->data++;
+		e.address.group =
+			tomoyo_get_group(param, TOMOYO_ADDRESS_GROUP);
+		if (!e.address.group)
+			return -ENOMEM;
+	} else {
+		if (!tomoyo_parse_ipaddr_union(param, &e.address))
+			goto out;
+	}
+	if (!tomoyo_parse_number_union(param, &e.port) ||
+	    e.port.values[1] > 65535)
+		goto out;
+	error = tomoyo_update_domain(&e.head, sizeof(e), param,
+				     tomoyo_same_inet_acl,
+				     tomoyo_merge_inet_acl);
+out:
+	tomoyo_put_group(e.address.group);
+	tomoyo_put_number_union(&e.port);
+	return error;
+}
+
+/**
+ * tomoyo_write_unix_network - Write "struct tomoyo_unix_acl" list.
+ *
+ * @param: Pointer to "struct tomoyo_acl_param".
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+int tomoyo_write_unix_network(struct tomoyo_acl_param *param)
+{
+	struct tomoyo_unix_acl e = { .head.type = TOMOYO_TYPE_UNIX_ACL };
+	int error;
+	u8 type;
+	const char *protocol = tomoyo_read_token(param);
+	const char *operation = tomoyo_read_token(param);
+
+	for (e.protocol = 0; e.protocol < TOMOYO_SOCK_MAX; e.protocol++)
+		if (!strcmp(protocol, tomoyo_proto_keyword[e.protocol]))
+			break;
+	for (type = 0; type < TOMOYO_MAX_NETWORK_OPERATION; type++)
+		if (tomoyo_permstr(operation, tomoyo_socket_keyword[type]))
+			e.perm |= 1 << type;
+	if (e.protocol == TOMOYO_SOCK_MAX || !e.perm)
+		return -EINVAL;
+	if (!tomoyo_parse_name_union(param, &e.name))
+		return -EINVAL;
+	error = tomoyo_update_domain(&e.head, sizeof(e), param,
+				     tomoyo_same_unix_acl,
+				     tomoyo_merge_unix_acl);
+	tomoyo_put_name_union(&e.name);
+	return error;
+}
+
+/**
+ * tomoyo_audit_net_log - Audit network log.
+ *
+ * @r:         Pointer to "struct tomoyo_request_info".
+ * @family:    Name of socket family ("inet" or "unix").
+ * @protocol:  Name of protocol in @family.
+ * @operation: Name of socket operation.
+ * @address:   Name of address.
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+static int tomoyo_audit_net_log(struct tomoyo_request_info *r,
+				const char *family, const u8 protocol,
+				const u8 operation, const char *address)
+{
+	return tomoyo_supervisor(r, "network %s %s %s %s\n", family,
+				 tomoyo_proto_keyword[protocol],
+				 tomoyo_socket_keyword[operation], address);
+}
+
+/**
+ * tomoyo_audit_inet_log - Audit INET network log.
+ *
+ * @r: Pointer to "struct tomoyo_request_info".
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+static int tomoyo_audit_inet_log(struct tomoyo_request_info *r)
+{
+	char buf[128];
+	int len;
+	const __be32 *address = r->param.inet_network.address;
+
+	if (r->param.inet_network.is_ipv6)
+		tomoyo_print_ipv6(buf, sizeof(buf), (const struct in6_addr *)
+				  address, (const struct in6_addr *) address);
+	else
+		tomoyo_print_ipv4(buf, sizeof(buf), address, address);
+	len = strlen(buf);
+	snprintf(buf + len, sizeof(buf) - len, " %u",
+		 r->param.inet_network.port);
+	return tomoyo_audit_net_log(r, "inet", r->param.inet_network.protocol,
+				    r->param.inet_network.operation, buf);
+}
+
+/**
+ * tomoyo_audit_unix_log - Audit UNIX network log.
+ *
+ * @r: Pointer to "struct tomoyo_request_info".
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+static int tomoyo_audit_unix_log(struct tomoyo_request_info *r)
+{
+	return tomoyo_audit_net_log(r, "unix", r->param.unix_network.protocol,
+				    r->param.unix_network.operation,
+				    r->param.unix_network.address->name);
+}
+
+/**
+ * tomoyo_check_inet_acl - Check permission for inet domain socket operation.
+ *
+ * @r:   Pointer to "struct tomoyo_request_info".
+ * @ptr: Pointer to "struct tomoyo_acl_info".
+ *
+ * Returns true if granted, false otherwise.
+ */
+static bool tomoyo_check_inet_acl(struct tomoyo_request_info *r,
+				  const struct tomoyo_acl_info *ptr)
+{
+	const struct tomoyo_inet_acl *acl =
+		container_of(ptr, typeof(*acl), head);
+	const u8 size = r->param.inet_network.is_ipv6 ? 16 : 4;
+
+	if (!(acl->perm & (1 << r->param.inet_network.operation)) ||
+	    !tomoyo_compare_number_union(r->param.inet_network.port,
+					 &acl->port))
+		return false;
+	if (acl->address.group)
+		return tomoyo_address_matches_group
+			(r->param.inet_network.is_ipv6,
+			 r->param.inet_network.address, acl->address.group);
+	return acl->address.is_ipv6 == r->param.inet_network.is_ipv6 &&
+		memcmp(&acl->address.ip[0],
+		       r->param.inet_network.address, size) <= 0 &&
+		memcmp(r->param.inet_network.address,
+		       &acl->address.ip[1], size) <= 0;
+}
+
+/**
+ * tomoyo_check_unix_acl - Check permission for unix domain socket operation.
+ *
+ * @r:   Pointer to "struct tomoyo_request_info".
+ * @ptr: Pointer to "struct tomoyo_acl_info".
+ *
+ * Returns true if granted, false otherwise.
+ */
+static bool tomoyo_check_unix_acl(struct tomoyo_request_info *r,
+				  const struct tomoyo_acl_info *ptr)
+{
+	const struct tomoyo_unix_acl *acl =
+		container_of(ptr, typeof(*acl), head);
+
+	return (acl->perm & (1 << r->param.unix_network.operation)) &&
+		tomoyo_compare_name_union(r->param.unix_network.address,
+					  &acl->name);
+}
+
+/**
+ * tomoyo_inet_entry - Check permission for INET network operation.
+ *
+ * @address: Pointer to "struct tomoyo_addr_info".
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+static int tomoyo_inet_entry(const struct tomoyo_addr_info *address)
+{
+	const int idx = tomoyo_read_lock();
+	struct tomoyo_request_info r;
+	int error = 0;
+	const u8 type = tomoyo_inet2mac[address->protocol][address->operation];
+
+	if (type && tomoyo_init_request_info(&r, NULL, type)
+	    != TOMOYO_CONFIG_DISABLED) {
+		r.param_type = TOMOYO_TYPE_INET_ACL;
+		r.param.inet_network.protocol = address->protocol;
+		r.param.inet_network.operation = address->operation;
+		r.param.inet_network.is_ipv6 = address->inet.is_ipv6;
+		r.param.inet_network.address = address->inet.address;
+		r.param.inet_network.port = ntohs(address->inet.port);
+		do {
+			tomoyo_check_acl(&r, tomoyo_check_inet_acl);
+			error = tomoyo_audit_inet_log(&r);
+		} while (error == TOMOYO_RETRY_REQUEST);
+	}
+	tomoyo_read_unlock(idx);
+	return error;
+}
+
+/**
+ * tomoyo_check_inet_address - Check permission for inet domain socket's operation.
+ *
+ * @addr:     Pointer to "struct sockaddr".
+ * @addr_len: Size of @addr.
+ * @port:     Port number.
+ * @address:  Pointer to "struct tomoyo_addr_info".
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+static int tomoyo_check_inet_address(const struct sockaddr *addr,
+				     const unsigned int addr_len,
+				     const u16 port,
+				     struct tomoyo_addr_info *address)
+{
+	struct tomoyo_inet_addr_info *i = &address->inet;
+
+	switch (addr->sa_family) {
+	case AF_INET6:
+		if (addr_len < SIN6_LEN_RFC2133)
+			goto skip;
+		i->is_ipv6 = true;
+		i->address = (__be32 *)
+			((struct sockaddr_in6 *) addr)->sin6_addr.s6_addr;
+		i->port = ((struct sockaddr_in6 *) addr)->sin6_port;
+		break;
+	case AF_INET:
+		if (addr_len < sizeof(struct sockaddr_in))
+			goto skip;
+		i->is_ipv6 = false;
+		i->address = (__be32 *)
+			&((struct sockaddr_in *) addr)->sin_addr;
+		i->port = ((struct sockaddr_in *) addr)->sin_port;
+		break;
+	default:
+		goto skip;
+	}
+	if (address->protocol == SOCK_RAW)
+		i->port = htons(port);
+	return tomoyo_inet_entry(address);
+skip:
+	return 0;
+}
+
+/**
+ * tomoyo_unix_entry - Check permission for UNIX network operation.
+ *
+ * @address: Pointer to "struct tomoyo_addr_info".
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+static int tomoyo_unix_entry(const struct tomoyo_addr_info *address)
+{
+	const int idx = tomoyo_read_lock();
+	struct tomoyo_request_info r;
+	int error = 0;
+	const u8 type = tomoyo_unix2mac[address->protocol][address->operation];
+
+	if (type && tomoyo_init_request_info(&r, NULL, type)
+	    != TOMOYO_CONFIG_DISABLED) {
+		char *buf = address->unix0.addr;
+		int len = address->unix0.addr_len - sizeof(sa_family_t);
+
+		if (len <= 0) {
+			buf = "anonymous";
+			len = 9;
+		} else if (buf[0]) {
+			len = strnlen(buf, len);
+		}
+		buf = tomoyo_encode2(buf, len);
+		if (buf) {
+			struct tomoyo_path_info addr;
+
+			addr.name = buf;
+			tomoyo_fill_path_info(&addr);
+			r.param_type = TOMOYO_TYPE_UNIX_ACL;
+			r.param.unix_network.protocol = address->protocol;
+			r.param.unix_network.operation = address->operation;
+			r.param.unix_network.address = &addr;
+			do {
+				tomoyo_check_acl(&r, tomoyo_check_unix_acl);
+				error = tomoyo_audit_unix_log(&r);
+			} while (error == TOMOYO_RETRY_REQUEST);
+			kfree(buf);
+		} else
+			error = -ENOMEM;
+	}
+	tomoyo_read_unlock(idx);
+	return error;
+}
+
+/**
+ * tomoyo_check_unix_address - Check permission for unix domain socket's operation.
+ *
+ * @addr:     Pointer to "struct sockaddr".
+ * @addr_len: Size of @addr.
+ * @address:  Pointer to "struct tomoyo_addr_info".
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+static int tomoyo_check_unix_address(struct sockaddr *addr,
+				     const unsigned int addr_len,
+				     struct tomoyo_addr_info *address)
+{
+	struct tomoyo_unix_addr_info *u = &address->unix0;
+
+	if (addr->sa_family != AF_UNIX)
+		return 0;
+	u->addr = ((struct sockaddr_un *) addr)->sun_path;
+	u->addr_len = addr_len;
+	return tomoyo_unix_entry(address);
+}
+
+/**
+ * tomoyo_kernel_service - Check whether I'm kernel service or not.
+ *
+ * Returns true if I'm kernel service, false otherwise.
+ */
+static bool tomoyo_kernel_service(void)
+{
+	/* Nothing to do if I am a kernel service. */
+	return segment_eq(get_fs(), KERNEL_DS);
+}
+
+/**
+ * tomoyo_sock_family - Get socket's family.
+ *
+ * @sk: Pointer to "struct sock".
+ *
+ * Returns one of PF_INET, PF_INET6, PF_UNIX or 0.
+ */
+static u8 tomoyo_sock_family(struct sock *sk)
+{
+	u8 family;
+
+	if (tomoyo_kernel_service())
+		return 0;
+	family = sk->sk_family;
+	switch (family) {
+	case PF_INET:
+	case PF_INET6:
+	case PF_UNIX:
+		return family;
+	default:
+		return 0;
+	}
+}
+
+/**
+ * tomoyo_socket_listen_permission - Check permission for listening a socket.
+ *
+ * @sock: Pointer to "struct socket".
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+int tomoyo_socket_listen_permission(struct socket *sock)
+{
+	struct tomoyo_addr_info address;
+	const u8 family = tomoyo_sock_family(sock->sk);
+	const unsigned int type = sock->type;
+	struct sockaddr_storage addr;
+	int addr_len;
+
+	if (!family || (type != SOCK_STREAM && type != SOCK_SEQPACKET))
+		return 0;
+	{
+		const int error = sock->ops->getname(sock, (struct sockaddr *)
+						     &addr, &addr_len, 0);
+
+		if (error)
+			return error;
+	}
+	address.protocol = type;
+	address.operation = TOMOYO_NETWORK_LISTEN;
+	if (family == PF_UNIX)
+		return tomoyo_check_unix_address((struct sockaddr *) &addr,
+						 addr_len, &address);
+	return tomoyo_check_inet_address((struct sockaddr *) &addr, addr_len,
+					 0, &address);
+}
+
+/**
+ * tomoyo_socket_connect_permission - Check permission for setting the remote address of a socket.
+ *
+ * @sock:     Pointer to "struct socket".
+ * @addr:     Pointer to "struct sockaddr".
+ * @addr_len: Size of @addr.
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+int tomoyo_socket_connect_permission(struct socket *sock,
+				     struct sockaddr *addr, int addr_len)
+{
+	struct tomoyo_addr_info address;
+	const u8 family = tomoyo_sock_family(sock->sk);
+	const unsigned int type = sock->type;
+
+	if (!family)
+		return 0;
+	address.protocol = type;
+	switch (type) {
+	case SOCK_DGRAM:
+	case SOCK_RAW:
+		address.operation = TOMOYO_NETWORK_SEND;
+		break;
+	case SOCK_STREAM:
+	case SOCK_SEQPACKET:
+		address.operation = TOMOYO_NETWORK_CONNECT;
+		break;
+	default:
+		return 0;
+	}
+	if (family == PF_UNIX)
+		return tomoyo_check_unix_address(addr, addr_len, &address);
+	return tomoyo_check_inet_address(addr, addr_len, sock->sk->sk_protocol,
+					 &address);
+}
+
+/**
+ * tomoyo_socket_bind_permission - Check permission for setting the local address of a socket.
+ *
+ * @sock:     Pointer to "struct socket".
+ * @addr:     Pointer to "struct sockaddr".
+ * @addr_len: Size of @addr.
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+int tomoyo_socket_bind_permission(struct socket *sock, struct sockaddr *addr,
+				  int addr_len)
+{
+	struct tomoyo_addr_info address;
+	const u8 family = tomoyo_sock_family(sock->sk);
+	const unsigned int type = sock->type;
+
+	if (!family)
+		return 0;
+	switch (type) {
+	case SOCK_STREAM:
+	case SOCK_DGRAM:
+	case SOCK_RAW:
+	case SOCK_SEQPACKET:
+		address.protocol = type;
+		address.operation = TOMOYO_NETWORK_BIND;
+		break;
+	default:
+		return 0;
+	}
+	if (family == PF_UNIX)
+		return tomoyo_check_unix_address(addr, addr_len, &address);
+	return tomoyo_check_inet_address(addr, addr_len, sock->sk->sk_protocol,
+					 &address);
+}
+
+/**
+ * tomoyo_socket_sendmsg_permission - Check permission for sending a datagram.
+ *
+ * @sock: Pointer to "struct socket".
+ * @msg:  Pointer to "struct msghdr".
+ * @size: Unused.
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+int tomoyo_socket_sendmsg_permission(struct socket *sock, struct msghdr *msg,
+				     int size)
+{
+	struct tomoyo_addr_info address;
+	const u8 family = tomoyo_sock_family(sock->sk);
+	const unsigned int type = sock->type;
+
+	if (!msg->msg_name || !family ||
+	    (type != SOCK_DGRAM && type != SOCK_RAW))
+		return 0;
+	address.protocol = type;
+	address.operation = TOMOYO_NETWORK_SEND;
+	if (family == PF_UNIX)
+		return tomoyo_check_unix_address((struct sockaddr *)
+						 msg->msg_name,
+						 msg->msg_namelen, &address);
+	return tomoyo_check_inet_address((struct sockaddr *) msg->msg_name,
+					 msg->msg_namelen,
+					 sock->sk->sk_protocol, &address);
+}
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index 6c601bd300f3..738bbdf8d4c7 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -15,17 +15,19 @@
 #include "../../fs/internal.h"
 
 /**
- * tomoyo_encode: Convert binary string to ascii string.
+ * tomoyo_encode2 - Encode binary string to ascii string.
  *
- * @str: String in binary format.
+ * @str:     String in binary format.
+ * @str_len: Size of @str in byte.
  *
  * Returns pointer to @str in ascii format on success, NULL otherwise.
  *
  * This function uses kzalloc(), so caller must kfree() if this function
  * didn't return NULL.
  */
-char *tomoyo_encode(const char *str)
+char *tomoyo_encode2(const char *str, int str_len)
 {
+	int i;
 	int len = 0;
 	const char *p = str;
 	char *cp;
@@ -33,8 +35,9 @@ char *tomoyo_encode(const char *str)
 
 	if (!p)
 		return NULL;
-	while (*p) {
-		const unsigned char c = *p++;
+	for (i = 0; i < str_len; i++) {
+		const unsigned char c = p[i];
+
 		if (c == '\\')
 			len += 2;
 		else if (c > ' ' && c < 127)
@@ -49,8 +52,8 @@ char *tomoyo_encode(const char *str)
 		return NULL;
 	cp0 = cp;
 	p = str;
-	while (*p) {
-		const unsigned char c = *p++;
+	for (i = 0; i < str_len; i++) {
+		const unsigned char c = p[i];
 
 		if (c == '\\') {
 			*cp++ = '\\';
@@ -68,6 +71,21 @@ char *tomoyo_encode(const char *str)
 }
 
 /**
+ * tomoyo_encode - Encode binary string to ascii string.
+ *
+ * @str: String in binary format.
+ *
+ * Returns pointer to @str in ascii format on success, NULL otherwise.
+ *
+ * This function uses kzalloc(), so caller must kfree() if this function
+ * didn't return NULL.
+ */
+char *tomoyo_encode(const char *str)
+{
+	return str ? tomoyo_encode2(str, strlen(str)) : NULL;
+}
+
+/**
  * tomoyo_get_absolute_path - Get the path of a dentry but ignores chroot'ed root.
  *
  * @path:   Pointer to "struct path".
diff --git a/security/tomoyo/securityfs_if.c b/security/tomoyo/securityfs_if.c
index a49c3bfd4dd5..2672ac4f3beb 100644
--- a/security/tomoyo/securityfs_if.c
+++ b/security/tomoyo/securityfs_if.c
@@ -8,6 +8,124 @@
 #include "common.h"
 
 /**
+ * tomoyo_check_task_acl - Check permission for task operation.
+ *
+ * @r:   Pointer to "struct tomoyo_request_info".
+ * @ptr: Pointer to "struct tomoyo_acl_info".
+ *
+ * Returns true if granted, false otherwise.
+ */
+static bool tomoyo_check_task_acl(struct tomoyo_request_info *r,
+				  const struct tomoyo_acl_info *ptr)
+{
+	const struct tomoyo_task_acl *acl = container_of(ptr, typeof(*acl),
+							 head);
+	return !tomoyo_pathcmp(r->param.task.domainname, acl->domainname);
+}
+
+/**
+ * tomoyo_write_self - write() for /sys/kernel/security/tomoyo/self_domain interface.
+ *
+ * @file:  Pointer to "struct file".
+ * @buf:   Domainname to transit to.
+ * @count: Size of @buf.
+ * @ppos:  Unused.
+ *
+ * Returns @count on success, negative value otherwise.
+ *
+ * If domain transition was permitted but the domain transition failed, this
+ * function returns error rather than terminating current thread with SIGKILL.
+ */
+static ssize_t tomoyo_write_self(struct file *file, const char __user *buf,
+			      size_t count, loff_t *ppos)
+{
+	char *data;
+	int error;
+	if (!count || count >= TOMOYO_EXEC_TMPSIZE - 10)
+		return -ENOMEM;
+	data = kzalloc(count + 1, GFP_NOFS);
+	if (!data)
+		return -ENOMEM;
+	if (copy_from_user(data, buf, count)) {
+		error = -EFAULT;
+		goto out;
+	}
+	tomoyo_normalize_line(data);
+	if (tomoyo_correct_domain(data)) {
+		const int idx = tomoyo_read_lock();
+		struct tomoyo_path_info name;
+		struct tomoyo_request_info r;
+		name.name = data;
+		tomoyo_fill_path_info(&name);
+		/* Check "task manual_domain_transition" permission. */
+		tomoyo_init_request_info(&r, NULL, TOMOYO_MAC_FILE_EXECUTE);
+		r.param_type = TOMOYO_TYPE_MANUAL_TASK_ACL;
+		r.param.task.domainname = &name;
+		tomoyo_check_acl(&r, tomoyo_check_task_acl);
+		if (!r.granted)
+			error = -EPERM;
+		else {
+			struct tomoyo_domain_info *new_domain =
+				tomoyo_assign_domain(data, true);
+			if (!new_domain) {
+				error = -ENOENT;
+			} else {
+				struct cred *cred = prepare_creds();
+				if (!cred) {
+					error = -ENOMEM;
+				} else {
+					struct tomoyo_domain_info *old_domain =
+						cred->security;
+					cred->security = new_domain;
+					atomic_inc(&new_domain->users);
+					atomic_dec(&old_domain->users);
+					commit_creds(cred);
+					error = 0;
+				}
+			}
+		}
+		tomoyo_read_unlock(idx);
+	} else
+		error = -EINVAL;
+out:
+	kfree(data);
+	return error ? error : count;
+}
+
+/**
+ * tomoyo_read_self - read() for /sys/kernel/security/tomoyo/self_domain interface.
+ *
+ * @file:  Pointer to "struct file".
+ * @buf:   Domainname which current thread belongs to.
+ * @count: Size of @buf.
+ * @ppos:  Bytes read by now.
+ *
+ * Returns read size on success, negative value otherwise.
+ */
+static ssize_t tomoyo_read_self(struct file *file, char __user *buf,
+				size_t count, loff_t *ppos)
+{
+	const char *domain = tomoyo_domain()->domainname->name;
+	loff_t len = strlen(domain);
+	loff_t pos = *ppos;
+	if (pos >= len || !count)
+		return 0;
+	len -= pos;
+	if (count < len)
+		len = count;
+	if (copy_to_user(buf, domain + pos, len))
+		return -EFAULT;
+	*ppos += len;
+	return len;
+}
+
+/* Operations for /sys/kernel/security/tomoyo/self_domain interface. */
+static const struct file_operations tomoyo_self_operations = {
+	.write = tomoyo_write_self,
+	.read  = tomoyo_read_self,
+};
+
+/**
  * tomoyo_open - open() for /sys/kernel/security/tomoyo/ interface.
  *
  * @inode: Pointer to "struct inode".
@@ -135,8 +253,6 @@ static int __init tomoyo_initerface_init(void)
 			    TOMOYO_EXCEPTIONPOLICY);
 	tomoyo_create_entry("audit",            0400, tomoyo_dir,
 			    TOMOYO_AUDIT);
-	tomoyo_create_entry("self_domain",      0400, tomoyo_dir,
-			    TOMOYO_SELFDOMAIN);
 	tomoyo_create_entry(".process_status",  0600, tomoyo_dir,
 			    TOMOYO_PROCESS_STATUS);
 	tomoyo_create_entry("stat",             0644, tomoyo_dir,
@@ -147,6 +263,9 @@ static int __init tomoyo_initerface_init(void)
 			    TOMOYO_MANAGER);
 	tomoyo_create_entry("version",          0400, tomoyo_dir,
 			    TOMOYO_VERSION);
+	securityfs_create_file("self_domain", 0666, tomoyo_dir, NULL,
+			       &tomoyo_self_operations);
+	tomoyo_load_builtin_policy();
 	return 0;
 }
 
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index f776400a8f31..4b327b691745 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -442,6 +442,64 @@ static int tomoyo_sb_pivotroot(struct path *old_path, struct path *new_path)
 	return tomoyo_path2_perm(TOMOYO_TYPE_PIVOT_ROOT, new_path, old_path);
 }
 
+/**
+ * tomoyo_socket_listen - Check permission for listen().
+ *
+ * @sock:    Pointer to "struct socket".
+ * @backlog: Backlog parameter.
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+static int tomoyo_socket_listen(struct socket *sock, int backlog)
+{
+	return tomoyo_socket_listen_permission(sock);
+}
+
+/**
+ * tomoyo_socket_connect - Check permission for connect().
+ *
+ * @sock:     Pointer to "struct socket".
+ * @addr:     Pointer to "struct sockaddr".
+ * @addr_len: Size of @addr.
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+static int tomoyo_socket_connect(struct socket *sock, struct sockaddr *addr,
+				 int addr_len)
+{
+	return tomoyo_socket_connect_permission(sock, addr, addr_len);
+}
+
+/**
+ * tomoyo_socket_bind - Check permission for bind().
+ *
+ * @sock:     Pointer to "struct socket".
+ * @addr:     Pointer to "struct sockaddr".
+ * @addr_len: Size of @addr.
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+static int tomoyo_socket_bind(struct socket *sock, struct sockaddr *addr,
+			      int addr_len)
+{
+	return tomoyo_socket_bind_permission(sock, addr, addr_len);
+}
+
+/**
+ * tomoyo_socket_sendmsg - Check permission for sendmsg().
+ *
+ * @sock: Pointer to "struct socket".
+ * @msg:  Pointer to "struct msghdr".
+ * @size: Size of message.
+ *
+ * Returns 0 on success, negative value otherwise.
+ */
+static int tomoyo_socket_sendmsg(struct socket *sock, struct msghdr *msg,
+				 int size)
+{
+	return tomoyo_socket_sendmsg_permission(sock, msg, size);
+}
+
 /*
  * tomoyo_security_ops is a "struct security_operations" which is used for
  * registering TOMOYO.
@@ -472,6 +530,10 @@ static struct security_operations tomoyo_security_ops = {
 	.sb_mount            = tomoyo_sb_mount,
 	.sb_umount           = tomoyo_sb_umount,
 	.sb_pivotroot        = tomoyo_sb_pivotroot,
+	.socket_bind         = tomoyo_socket_bind,
+	.socket_connect      = tomoyo_socket_connect,
+	.socket_listen       = tomoyo_socket_listen,
+	.socket_sendmsg      = tomoyo_socket_sendmsg,
 };
 
 /* Lock for GC. */
diff --git a/security/tomoyo/util.c b/security/tomoyo/util.c
index c36bd1107fc8..4a9b4b2eb755 100644
--- a/security/tomoyo/util.c
+++ b/security/tomoyo/util.c
@@ -42,6 +42,39 @@ const u8 tomoyo_index2category[TOMOYO_MAX_MAC_INDEX] = {
 	[TOMOYO_MAC_FILE_MOUNT]      = TOMOYO_MAC_CATEGORY_FILE,
 	[TOMOYO_MAC_FILE_UMOUNT]     = TOMOYO_MAC_CATEGORY_FILE,
 	[TOMOYO_MAC_FILE_PIVOT_ROOT] = TOMOYO_MAC_CATEGORY_FILE,
+	/* CONFIG::network group */
+	[TOMOYO_MAC_NETWORK_INET_STREAM_BIND]       =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	[TOMOYO_MAC_NETWORK_INET_STREAM_LISTEN]     =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	[TOMOYO_MAC_NETWORK_INET_STREAM_CONNECT]    =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	[TOMOYO_MAC_NETWORK_INET_DGRAM_BIND]        =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	[TOMOYO_MAC_NETWORK_INET_DGRAM_SEND]        =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	[TOMOYO_MAC_NETWORK_INET_RAW_BIND]          =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	[TOMOYO_MAC_NETWORK_INET_RAW_SEND]          =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	[TOMOYO_MAC_NETWORK_UNIX_STREAM_BIND]       =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	[TOMOYO_MAC_NETWORK_UNIX_STREAM_LISTEN]     =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	[TOMOYO_MAC_NETWORK_UNIX_STREAM_CONNECT]    =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	[TOMOYO_MAC_NETWORK_UNIX_DGRAM_BIND]        =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	[TOMOYO_MAC_NETWORK_UNIX_DGRAM_SEND]        =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	[TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_BIND]    =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	[TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_LISTEN]  =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	[TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_CONNECT] =
+	TOMOYO_MAC_CATEGORY_NETWORK,
+	/* CONFIG::misc group */
+	[TOMOYO_MAC_ENVIRON]         = TOMOYO_MAC_CATEGORY_MISC,
 };
 
 /**
@@ -126,6 +159,31 @@ char *tomoyo_read_token(struct tomoyo_acl_param *param)
 }
 
 /**
+ * tomoyo_get_domainname - Read a domainname from a line.
+ *
+ * @param: Pointer to "struct tomoyo_acl_param".
+ *
+ * Returns a domainname on success, NULL otherwise.
+ */
+const struct tomoyo_path_info *tomoyo_get_domainname
+(struct tomoyo_acl_param *param)
+{
+	char *start = param->data;
+	char *pos = start;
+	while (*pos) {
+		if (*pos++ != ' ' || *pos++ == '/')
+			continue;
+		pos -= 2;
+		*pos++ = '\0';
+		break;
+	}
+	param->data = pos;
+	if (tomoyo_correct_domain(start))
+		return tomoyo_get_name(start);
+	return NULL;
+}
+
+/**
  * tomoyo_parse_ulong - Parse an "unsigned long" value.
  *
  * @result: Pointer to "unsigned long".
@@ -920,14 +978,17 @@ int tomoyo_get_mode(const struct tomoyo_policy_namespace *ns, const u8 profile,
 		    const u8 index)
 {
 	u8 mode;
-	const u8 category = TOMOYO_MAC_CATEGORY_FILE;
+	struct tomoyo_profile *p;
+
 	if (!tomoyo_policy_loaded)
 		return TOMOYO_CONFIG_DISABLED;
-	mode = tomoyo_profile(ns, profile)->config[index];
+	p = tomoyo_profile(ns, profile);
+	mode = p->config[index];
 	if (mode == TOMOYO_CONFIG_USE_DEFAULT)
-		mode = tomoyo_profile(ns, profile)->config[category];
+		mode = p->config[tomoyo_index2category[index]
+				 + TOMOYO_MAX_MAC_INDEX];
 	if (mode == TOMOYO_CONFIG_USE_DEFAULT)
-		mode = tomoyo_profile(ns, profile)->default_config;
+		mode = p->default_config;
 	return mode & 3;
 }
 
@@ -996,6 +1057,17 @@ bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r)
 			perm = container_of(ptr, struct tomoyo_mkdev_acl,
 					    head)->perm;
 			break;
+		case TOMOYO_TYPE_INET_ACL:
+			perm = container_of(ptr, struct tomoyo_inet_acl,
+					    head)->perm;
+			break;
+		case TOMOYO_TYPE_UNIX_ACL:
+			perm = container_of(ptr, struct tomoyo_unix_acl,
+					    head)->perm;
+			break;
+		case TOMOYO_TYPE_MANUAL_TASK_ACL:
+			perm = 0;
+			break;
 		default:
 			perm = 1;
 		}