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Commit 82e0f001 authored by Tetsuo Handa's avatar Tetsuo Handa Committed by James Morris
Browse files

TOMOYO: Use common structure for list element. 



Use common "struct list_head" + "bool" structure.

Signed-off-by: default avatarTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: default avatarJames Morris <jmorris@namei.org>
parent 237ab459

security/tomoyo/common.c

+9 −9
Original line number Diff line number Diff line
@@ -499,10 +499,10 @@ static int tomoyo_update_manager_entry(const char *manager, 
		return -ENOMEM;

	if (mutex_lock_interruptible(&tomoyo_policy_lock))

		goto out;

	list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list, list) {

	list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list, head.list) {

		if (ptr->manager != e.manager)

			continue;

		ptr->is_deleted = is_delete;

		ptr->head.is_deleted = is_delete;

		error = 0;

		break;

	}
@@ -510,7 +510,7 @@ static int tomoyo_update_manager_entry(const char *manager, 
		struct tomoyo_policy_manager_entry *entry =

			tomoyo_commit_ok(&e, sizeof(e));

		if (entry) {

			list_add_tail_rcu(&entry->list,

			list_add_tail_rcu(&entry->head.list,

					  &tomoyo_policy_manager_list);

			error = 0;

		}
@@ -562,8 +562,8 @@ static int tomoyo_read_manager_policy(struct tomoyo_io_buffer *head) 
			     &tomoyo_policy_manager_list) {

		struct tomoyo_policy_manager_entry *ptr;

		ptr = list_entry(pos, struct tomoyo_policy_manager_entry,

				 list);

		if (ptr->is_deleted)

				 head.list);

		if (ptr->head.is_deleted)

			continue;

		done = tomoyo_io_printf(head, "%s\n", ptr->manager->name);

		if (!done)
@@ -593,8 +593,8 @@ static bool tomoyo_is_policy_manager(void) 
		return true;

	if (!tomoyo_manage_by_non_root && (task->cred->uid || task->cred->euid))

		return false;

	list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list, list) {

		if (!ptr->is_deleted && ptr->is_domain

	list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list, head.list) {

		if (!ptr->head.is_deleted && ptr->is_domain

		    && !tomoyo_pathcmp(domainname, ptr->manager)) {

			found = true;

			break;
@@ -605,8 +605,8 @@ static bool tomoyo_is_policy_manager(void) 
	exe = tomoyo_get_exe();

	if (!exe)

		return false;

	list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list, list) {

		if (!ptr->is_deleted && !ptr->is_domain

	list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list, head.list) {

		if (!ptr->head.is_deleted && !ptr->is_domain

		    && !strcmp(exe, ptr->manager->name)) {

			found = true;

			break;

security/tomoyo/common.h

+50 −62
Original line number Diff line number Diff line
@@ -188,6 +188,20 @@ enum tomoyo_mac_category_index { 


/********** Structure definitions. **********/



/*

 * tomoyo_acl_head is a structure which is used for holding elements not in

 * domain policy.

 * It has following fields.

 *

 *  (1) "list" which is linked to tomoyo_policy_list[] .

 *  (2) "is_deleted" is a bool which is true if marked as deleted, false

 *      otherwise.

 */

struct tomoyo_acl_head {

	struct list_head list;

	bool is_deleted;

} __packed;



/*

 * tomoyo_request_info is a structure which is used for holding

 *
@@ -274,15 +288,13 @@ struct tomoyo_number_group { 


/* Structure for "path_group" directive. */

struct tomoyo_path_group_member {

	struct list_head list;

	bool is_deleted;

	struct tomoyo_acl_head head;

	const struct tomoyo_path_info *member_name;

};



/* Structure for "number_group" directive. */

struct tomoyo_number_group_member {

	struct list_head list;

	bool is_deleted;

	struct tomoyo_acl_head head;

	struct tomoyo_number_union number;

};
@@ -523,15 +535,12 @@ struct tomoyo_io_buffer { 
 * "allow_read" entries.

 * It has following fields.

 *

 *  (1) "list" which is linked to tomoyo_globally_readable_list .

 *  (1) "head" is "struct tomoyo_acl_head".

 *  (2) "filename" is a pathname which is allowed to open(O_RDONLY).

 *  (3) "is_deleted" is a bool which is true if marked as deleted, false

 *      otherwise.

 */

struct tomoyo_globally_readable_file_entry {

	struct list_head list;

	struct tomoyo_acl_head head;

	const struct tomoyo_path_info *filename;

	bool is_deleted;

};



/*
@@ -539,16 +548,13 @@ struct tomoyo_globally_readable_file_entry { 
 * "tomoyo_pattern_list" entries.

 * It has following fields.

 *

 *  (1) "list" which is linked to tomoyo_pattern_list .

 *  (1) "head" is "struct tomoyo_acl_head".

 *  (2) "pattern" is a pathname pattern which is used for converting pathnames

 *      to pathname patterns during learning mode.

 *  (3) "is_deleted" is a bool which is true if marked as deleted, false

 *      otherwise.

 */

struct tomoyo_pattern_entry {

	struct list_head list;

	struct tomoyo_acl_head head;

	const struct tomoyo_path_info *pattern;

	bool is_deleted;

};



/*
@@ -556,16 +562,13 @@ struct tomoyo_pattern_entry { 
 * "deny_rewrite" entries.

 * It has following fields.

 *

 *  (1) "list" which is linked to tomoyo_no_rewrite_list .

 *  (1) "head" is "struct tomoyo_acl_head".

 *  (2) "pattern" is a pathname which is by default not permitted to modify

 *      already existing content.

 *  (3) "is_deleted" is a bool which is true if marked as deleted, false

 *      otherwise.

 */

struct tomoyo_no_rewrite_entry {

	struct list_head list;

	struct tomoyo_acl_head head;

	const struct tomoyo_path_info *pattern;

	bool is_deleted;

};



/*
@@ -573,25 +576,22 @@ struct tomoyo_no_rewrite_entry { 
 * "initialize_domain" and "no_initialize_domain" entries.

 * It has following fields.

 *

 *  (1) "list" which is linked to tomoyo_domain_initializer_list .

 *  (2) "domainname" which is "a domainname" or "the last component of a

 *      domainname". This field is NULL if "from" clause is not specified.

 *  (3) "program" which is a program's pathname.

 *  (4) "is_deleted" is a bool which is true if marked as deleted, false

 *  (1) "head" is "struct tomoyo_acl_head".

 *  (2) "is_not" is a bool which is true if "no_initialize_domain", false

 *      otherwise.

 *  (5) "is_not" is a bool which is true if "no_initialize_domain", false

 *      otherwise.

 *  (6) "is_last_name" is a bool which is true if "domainname" is "the last

 *  (3) "is_last_name" is a bool which is true if "domainname" is "the last

 *      component of a domainname", false otherwise.

 *  (4) "domainname" which is "a domainname" or "the last component of a

 *      domainname". This field is NULL if "from" clause is not specified.

 *  (5) "program" which is a program's pathname.

 */

struct tomoyo_domain_initializer_entry {

	struct list_head list;

	const struct tomoyo_path_info *domainname;    /* This may be NULL */

	const struct tomoyo_path_info *program;

	bool is_deleted;

	struct tomoyo_acl_head head;

	bool is_not;       /* True if this entry is "no_initialize_domain".  */

	/* True if the domainname is tomoyo_get_last_name(). */

	bool is_last_name;

	const struct tomoyo_path_info *domainname;    /* This may be NULL */

	const struct tomoyo_path_info *program;

};



/*
@@ -599,26 +599,23 @@ struct tomoyo_domain_initializer_entry { 
 * "keep_domain" and "no_keep_domain" entries.

 * It has following fields.

 *

 *  (1) "list" which is linked to tomoyo_domain_keeper_list .

 *  (2) "domainname" which is "a domainname" or "the last component of a

 *      domainname".

 *  (3) "program" which is a program's pathname.

 *      This field is NULL if "from" clause is not specified.

 *  (4) "is_deleted" is a bool which is true if marked as deleted, false

 *  (1) "head" is "struct tomoyo_acl_head".

 *  (2) "is_not" is a bool which is true if "no_initialize_domain", false

 *      otherwise.

 *  (5) "is_not" is a bool which is true if "no_initialize_domain", false

 *      otherwise.

 *  (6) "is_last_name" is a bool which is true if "domainname" is "the last

 *  (3) "is_last_name" is a bool which is true if "domainname" is "the last

 *      component of a domainname", false otherwise.

 *  (4) "domainname" which is "a domainname" or "the last component of a

 *      domainname".

 *  (5) "program" which is a program's pathname.

 *      This field is NULL if "from" clause is not specified.

 */

struct tomoyo_domain_keeper_entry {

	struct list_head list;

	const struct tomoyo_path_info *domainname;

	const struct tomoyo_path_info *program;       /* This may be NULL */

	bool is_deleted;

	struct tomoyo_acl_head head;

	bool is_not;       /* True if this entry is "no_keep_domain".        */

	/* True if the domainname is tomoyo_get_last_name(). */

	bool is_last_name;

	const struct tomoyo_path_info *domainname;

	const struct tomoyo_path_info *program;       /* This may be NULL */

};



/*
@@ -626,34 +623,28 @@ struct tomoyo_domain_keeper_entry { 
 * "aggregator" entries.

 * It has following fields.

 *

 *  (1) "list" which is linked to tomoyo_aggregator_list .

 *  (1) "head" is "struct tomoyo_acl_head".

 *  (2) "original_name" which is originally requested name.

 *  (3) "aggregated_name" which is name to rewrite.

 *  (4) "is_deleted" is a bool which is true if marked as deleted, false

 *      otherwise.

 */

struct tomoyo_aggregator_entry {

	struct list_head list;

	struct tomoyo_acl_head head;

	const struct tomoyo_path_info *original_name;

	const struct tomoyo_path_info *aggregated_name;

	bool is_deleted;

};



/*

 * tomoyo_alias_entry is a structure which is used for holding "alias" entries.

 * It has following fields.

 *

 *  (1) "list" which is linked to tomoyo_alias_list .

 *  (1) "head" is "struct tomoyo_acl_head".

 *  (2) "original_name" which is a dereferenced pathname.

 *  (3) "aliased_name" which is a symlink's pathname.

 *  (4) "is_deleted" is a bool which is true if marked as deleted, false

 *      otherwise.

 */

struct tomoyo_alias_entry {

	struct list_head list;

	struct tomoyo_acl_head head;

	const struct tomoyo_path_info *original_name;

	const struct tomoyo_path_info *aliased_name;

	bool is_deleted;

};



/*
@@ -662,19 +653,16 @@ struct tomoyo_alias_entry { 
 * /sys/kernel/security/tomoyo/ interface.

 * It has following fields.

 *

 *  (1) "list" which is linked to tomoyo_policy_manager_list .

 *  (2) "manager" is a domainname or a program's pathname.

 *  (3) "is_domain" is a bool which is true if "manager" is a domainname, false

 *      otherwise.

 *  (4) "is_deleted" is a bool which is true if marked as deleted, false

 *  (1) "head" is "struct tomoyo_acl_head".

 *  (2) "is_domain" is a bool which is true if "manager" is a domainname, false

 *      otherwise.

 *  (3) "manager" is a domainname or a program's pathname.

 */

struct tomoyo_policy_manager_entry {

	struct list_head list;

	struct tomoyo_acl_head head;

	bool is_domain;  /* True if manager is a domainname. */

	/* A path to program or a domainname. */

	const struct tomoyo_path_info *manager;

	bool is_domain;  /* True if manager is a domainname. */

	bool is_deleted; /* True if this entry is deleted. */

};



struct tomoyo_preference {

security/tomoyo/domain.c

+34 −28
Original line number Diff line number Diff line
@@ -199,10 +199,11 @@ static int tomoyo_update_domain_initializer_entry(const char *domainname, 
		goto out;

	if (mutex_lock_interruptible(&tomoyo_policy_lock))

		goto out;

	list_for_each_entry_rcu(ptr, &tomoyo_domain_initializer_list, list) {

	list_for_each_entry_rcu(ptr, &tomoyo_domain_initializer_list,

				head.list) {

		if (!tomoyo_is_same_domain_initializer_entry(ptr, &e))

			continue;

		ptr->is_deleted = is_delete;

		ptr->head.is_deleted = is_delete;

		error = 0;

		break;

	}
@@ -210,7 +211,7 @@ static int tomoyo_update_domain_initializer_entry(const char *domainname, 
		struct tomoyo_domain_initializer_entry *entry =

			tomoyo_commit_ok(&e, sizeof(e));

		if (entry) {

			list_add_tail_rcu(&entry->list,

			list_add_tail_rcu(&entry->head.list,

					  &tomoyo_domain_initializer_list);

			error = 0;

		}
@@ -243,8 +244,8 @@ bool tomoyo_read_domain_initializer_policy(struct tomoyo_io_buffer *head) 
		const char *domain = "";

		struct tomoyo_domain_initializer_entry *ptr;

		ptr = list_entry(pos, struct tomoyo_domain_initializer_entry,

				  list);

		if (ptr->is_deleted)

				 head.list);

		if (ptr->head.is_deleted)

			continue;

		no = ptr->is_not ? "no_" : "";

		if (ptr->domainname) {
@@ -308,8 +309,9 @@ static bool tomoyo_is_domain_initializer(const struct tomoyo_path_info * 
	struct tomoyo_domain_initializer_entry *ptr;

	bool flag = false;



	list_for_each_entry_rcu(ptr, &tomoyo_domain_initializer_list, list) {

		if (ptr->is_deleted)

	list_for_each_entry_rcu(ptr, &tomoyo_domain_initializer_list,

				head.list) {

		if (ptr->head.is_deleted)

			continue;

		if (ptr->domainname) {

			if (!ptr->is_last_name) {
@@ -409,10 +411,10 @@ static int tomoyo_update_domain_keeper_entry(const char *domainname, 
		goto out;

	if (mutex_lock_interruptible(&tomoyo_policy_lock))

		goto out;

	list_for_each_entry_rcu(ptr, &tomoyo_domain_keeper_list, list) {

	list_for_each_entry_rcu(ptr, &tomoyo_domain_keeper_list, head.list) {

		if (!tomoyo_is_same_domain_keeper_entry(ptr, &e))

			continue;

		ptr->is_deleted = is_delete;

		ptr->head.is_deleted = is_delete;

		error = 0;

		break;

	}
@@ -420,7 +422,7 @@ static int tomoyo_update_domain_keeper_entry(const char *domainname, 
		struct tomoyo_domain_keeper_entry *entry =

			tomoyo_commit_ok(&e, sizeof(e));

		if (entry) {

			list_add_tail_rcu(&entry->list,

			list_add_tail_rcu(&entry->head.list,

					  &tomoyo_domain_keeper_list);

			error = 0;

		}
@@ -475,8 +477,9 @@ bool tomoyo_read_domain_keeper_policy(struct tomoyo_io_buffer *head) 
		const char *from = "";

		const char *program = "";



		ptr = list_entry(pos, struct tomoyo_domain_keeper_entry, list);

		if (ptr->is_deleted)

		ptr = list_entry(pos, struct tomoyo_domain_keeper_entry,

				 head.list);

		if (ptr->head.is_deleted)

			continue;

		no = ptr->is_not ? "no_" : "";

		if (ptr->program) {
@@ -512,8 +515,8 @@ static bool tomoyo_is_domain_keeper(const struct tomoyo_path_info *domainname, 
	struct tomoyo_domain_keeper_entry *ptr;

	bool flag = false;



	list_for_each_entry_rcu(ptr, &tomoyo_domain_keeper_list, list) {

		if (ptr->is_deleted)

	list_for_each_entry_rcu(ptr, &tomoyo_domain_keeper_list, head.list) {

		if (ptr->head.is_deleted)

			continue;

		if (!ptr->is_last_name) {

			if (ptr->domainname != domainname)
@@ -591,10 +594,10 @@ static int tomoyo_update_aggregator_entry(const char *original_name, 
		goto out;

	if (mutex_lock_interruptible(&tomoyo_policy_lock))

		goto out;

	list_for_each_entry_rcu(ptr, &tomoyo_aggregator_list, list) {

	list_for_each_entry_rcu(ptr, &tomoyo_aggregator_list, head.list) {

		if (!tomoyo_is_same_aggregator_entry(ptr, &e))

			continue;

		ptr->is_deleted = is_delete;

		ptr->head.is_deleted = is_delete;

		error = 0;

		break;

	}
@@ -602,7 +605,7 @@ static int tomoyo_update_aggregator_entry(const char *original_name, 
		struct tomoyo_aggregator_entry *entry =

			tomoyo_commit_ok(&e, sizeof(e));

		if (entry) {

			list_add_tail_rcu(&entry->list,

			list_add_tail_rcu(&entry->head.list,

					  &tomoyo_aggregator_list);

			error = 0;

		}
@@ -631,8 +634,9 @@ bool tomoyo_read_aggregator_policy(struct tomoyo_io_buffer *head) 
	list_for_each_cookie(pos, head->read_var2, &tomoyo_aggregator_list) {

		struct tomoyo_aggregator_entry *ptr;



		ptr = list_entry(pos, struct tomoyo_aggregator_entry, list);

		if (ptr->is_deleted)

		ptr = list_entry(pos, struct tomoyo_aggregator_entry,

				 head.list);

		if (ptr->head.is_deleted)

			continue;

		done = tomoyo_io_printf(head, TOMOYO_KEYWORD_AGGREGATOR

					"%s %s\n", ptr->original_name->name,
@@ -724,10 +728,10 @@ static int tomoyo_update_alias_entry(const char *original_name, 
		goto out; /* No patterns allowed. */

	if (mutex_lock_interruptible(&tomoyo_policy_lock))

		goto out;

	list_for_each_entry_rcu(ptr, &tomoyo_alias_list, list) {

	list_for_each_entry_rcu(ptr, &tomoyo_alias_list, head.list) {

		if (!tomoyo_is_same_alias_entry(ptr, &e))

			continue;

		ptr->is_deleted = is_delete;

		ptr->head.is_deleted = is_delete;

		error = 0;

		break;

	}
@@ -735,7 +739,8 @@ static int tomoyo_update_alias_entry(const char *original_name, 
		struct tomoyo_alias_entry *entry =

			tomoyo_commit_ok(&e, sizeof(e));

		if (entry) {

			list_add_tail_rcu(&entry->list, &tomoyo_alias_list);

			list_add_tail_rcu(&entry->head.list,

					  &tomoyo_alias_list);

			error = 0;

		}

	}
@@ -763,8 +768,8 @@ bool tomoyo_read_alias_policy(struct tomoyo_io_buffer *head) 
	list_for_each_cookie(pos, head->read_var2, &tomoyo_alias_list) {

		struct tomoyo_alias_entry *ptr;



		ptr = list_entry(pos, struct tomoyo_alias_entry, list);

		if (ptr->is_deleted)

		ptr = list_entry(pos, struct tomoyo_alias_entry, head.list);

		if (ptr->head.is_deleted)

			continue;

		done = tomoyo_io_printf(head, TOMOYO_KEYWORD_ALIAS "%s %s\n",

					ptr->original_name->name,
@@ -901,8 +906,8 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm) 
	if (tomoyo_pathcmp(&rn, &sn)) {

		struct tomoyo_alias_entry *ptr;

		/* Is this program allowed to be called via symbolic links? */

		list_for_each_entry_rcu(ptr, &tomoyo_alias_list, list) {

			if (ptr->is_deleted ||

		list_for_each_entry_rcu(ptr, &tomoyo_alias_list, head.list) {

			if (ptr->head.is_deleted ||

			    tomoyo_pathcmp(&rn, ptr->original_name) ||

			    tomoyo_pathcmp(&sn, ptr->aliased_name))

				continue;
@@ -917,8 +922,9 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm) 
	/* Check 'aggregator' directive. */

	{

		struct tomoyo_aggregator_entry *ptr;

		list_for_each_entry_rcu(ptr, &tomoyo_aggregator_list, list) {

			if (ptr->is_deleted ||

		list_for_each_entry_rcu(ptr, &tomoyo_aggregator_list,

					head.list) {

			if (ptr->head.is_deleted ||

			    !tomoyo_path_matches_pattern(&rn,

							 ptr->original_name))

				continue;

security/tomoyo/file.c

+25 −21
Original line number Diff line number Diff line
@@ -277,10 +277,11 @@ static int tomoyo_update_globally_readable_entry(const char *filename, 
		return -ENOMEM;

	if (mutex_lock_interruptible(&tomoyo_policy_lock))

		goto out;

	list_for_each_entry_rcu(ptr, &tomoyo_globally_readable_list, list) {

	list_for_each_entry_rcu(ptr, &tomoyo_globally_readable_list,

				head.list) {

		if (ptr->filename != e.filename)

			continue;

		ptr->is_deleted = is_delete;

		ptr->head.is_deleted = is_delete;

		error = 0;

		break;

	}
@@ -288,7 +289,7 @@ static int tomoyo_update_globally_readable_entry(const char *filename, 
		struct tomoyo_globally_readable_file_entry *entry =

			tomoyo_commit_ok(&e, sizeof(e));

		if (entry) {

			list_add_tail_rcu(&entry->list,

			list_add_tail_rcu(&entry->head.list,

					  &tomoyo_globally_readable_list);

			error = 0;

		}
@@ -314,8 +315,9 @@ static bool tomoyo_is_globally_readable_file(const struct tomoyo_path_info * 
	struct tomoyo_globally_readable_file_entry *ptr;

	bool found = false;



	list_for_each_entry_rcu(ptr, &tomoyo_globally_readable_list, list) {

		if (!ptr->is_deleted &&

	list_for_each_entry_rcu(ptr, &tomoyo_globally_readable_list,

				head.list) {

		if (!ptr->head.is_deleted &&

		    tomoyo_path_matches_pattern(filename, ptr->filename)) {

			found = true;

			break;
@@ -358,8 +360,8 @@ bool tomoyo_read_globally_readable_policy(struct tomoyo_io_buffer *head) 
		struct tomoyo_globally_readable_file_entry *ptr;

		ptr = list_entry(pos,

				 struct tomoyo_globally_readable_file_entry,

				 list);

		if (ptr->is_deleted)

				 head.list);

		if (ptr->head.is_deleted)

			continue;

		done = tomoyo_io_printf(head, TOMOYO_KEYWORD_ALLOW_READ "%s\n",

					ptr->filename->name);
@@ -424,10 +426,10 @@ static int tomoyo_update_file_pattern_entry(const char *pattern, 
		return error;

	if (mutex_lock_interruptible(&tomoyo_policy_lock))

		goto out;

	list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, list) {

	list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, head.list) {

		if (e.pattern != ptr->pattern)

			continue;

		ptr->is_deleted = is_delete;

		ptr->head.is_deleted = is_delete;

		error = 0;

		break;

	}
@@ -435,7 +437,8 @@ static int tomoyo_update_file_pattern_entry(const char *pattern, 
		struct tomoyo_pattern_entry *entry =

			tomoyo_commit_ok(&e, sizeof(e));

		if (entry) {

			list_add_tail_rcu(&entry->list, &tomoyo_pattern_list);

			list_add_tail_rcu(&entry->head.list,

					  &tomoyo_pattern_list);

			error = 0;

		}

	}
@@ -459,8 +462,8 @@ const char *tomoyo_file_pattern(const struct tomoyo_path_info *filename) 
	struct tomoyo_pattern_entry *ptr;

	const struct tomoyo_path_info *pattern = NULL;



	list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, list) {

		if (ptr->is_deleted)

	list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, head.list) {

		if (ptr->head.is_deleted)

			continue;

		if (!tomoyo_path_matches_pattern(filename, ptr->pattern))

			continue;
@@ -508,8 +511,8 @@ bool tomoyo_read_file_pattern(struct tomoyo_io_buffer *head) 


	list_for_each_cookie(pos, head->read_var2, &tomoyo_pattern_list) {

		struct tomoyo_pattern_entry *ptr;

		ptr = list_entry(pos, struct tomoyo_pattern_entry, list);

		if (ptr->is_deleted)

		ptr = list_entry(pos, struct tomoyo_pattern_entry, head.list);

		if (ptr->head.is_deleted)

			continue;

		done = tomoyo_io_printf(head, TOMOYO_KEYWORD_FILE_PATTERN

					"%s\n", ptr->pattern->name);
@@ -574,10 +577,10 @@ static int tomoyo_update_no_rewrite_entry(const char *pattern, 
		return error;

	if (mutex_lock_interruptible(&tomoyo_policy_lock))

		goto out;

	list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list, list) {

	list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list, head.list) {

		if (ptr->pattern != e.pattern)

			continue;

		ptr->is_deleted = is_delete;

		ptr->head.is_deleted = is_delete;

		error = 0;

		break;

	}
@@ -585,7 +588,7 @@ static int tomoyo_update_no_rewrite_entry(const char *pattern, 
		struct tomoyo_no_rewrite_entry *entry =

			tomoyo_commit_ok(&e, sizeof(e));

		if (entry) {

			list_add_tail_rcu(&entry->list,

			list_add_tail_rcu(&entry->head.list,

					  &tomoyo_no_rewrite_list);

			error = 0;

		}
@@ -611,8 +614,8 @@ static bool tomoyo_is_no_rewrite_file(const struct tomoyo_path_info *filename) 
	struct tomoyo_no_rewrite_entry *ptr;

	bool found = false;



	list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list, list) {

		if (ptr->is_deleted)

	list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list, head.list) {

		if (ptr->head.is_deleted)

			continue;

		if (!tomoyo_path_matches_pattern(filename, ptr->pattern))

			continue;
@@ -653,8 +656,9 @@ bool tomoyo_read_no_rewrite_policy(struct tomoyo_io_buffer *head) 


	list_for_each_cookie(pos, head->read_var2, &tomoyo_no_rewrite_list) {

		struct tomoyo_no_rewrite_entry *ptr;

		ptr = list_entry(pos, struct tomoyo_no_rewrite_entry, list);

		if (ptr->is_deleted)

		ptr = list_entry(pos, struct tomoyo_no_rewrite_entry,

				 head.list);

		if (ptr->head.is_deleted)

			continue;

		done = tomoyo_io_printf(head, TOMOYO_KEYWORD_DENY_REWRITE

					"%s\n", ptr->pattern->name);

security/tomoyo/gc.c

+33 −30
Original line number Diff line number Diff line
@@ -216,33 +216,34 @@ static void tomoyo_collect_entry(void) 
	{

		struct tomoyo_globally_readable_file_entry *ptr;

		list_for_each_entry_rcu(ptr, &tomoyo_globally_readable_list,

					list) {

			if (!ptr->is_deleted)

					head.list) {

			if (!ptr->head.is_deleted)

				continue;

			if (tomoyo_add_to_gc(TOMOYO_ID_GLOBALLY_READABLE, ptr))

				list_del_rcu(&ptr->list);

				list_del_rcu(&ptr->head.list);

			else

				break;

		}

	}

	{

		struct tomoyo_pattern_entry *ptr;

		list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, list) {

			if (!ptr->is_deleted)

		list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, head.list) {

			if (!ptr->head.is_deleted)

				continue;

			if (tomoyo_add_to_gc(TOMOYO_ID_PATTERN, ptr))

				list_del_rcu(&ptr->list);

				list_del_rcu(&ptr->head.list);

			else

				break;

		}

	}

	{

		struct tomoyo_no_rewrite_entry *ptr;

		list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list, list) {

			if (!ptr->is_deleted)

		list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list,

					head.list) {

			if (!ptr->head.is_deleted)

				continue;

			if (tomoyo_add_to_gc(TOMOYO_ID_NO_REWRITE, ptr))

				list_del_rcu(&ptr->list);

				list_del_rcu(&ptr->head.list);

			else

				break;

		}
@@ -250,44 +251,46 @@ static void tomoyo_collect_entry(void) 
	{

		struct tomoyo_domain_initializer_entry *ptr;

		list_for_each_entry_rcu(ptr, &tomoyo_domain_initializer_list,

					list) {

			if (!ptr->is_deleted)

					head.list) {

			if (!ptr->head.is_deleted)

				continue;

			if (tomoyo_add_to_gc(TOMOYO_ID_DOMAIN_INITIALIZER, ptr))

				list_del_rcu(&ptr->list);

				list_del_rcu(&ptr->head.list);

			else

				break;

		}

	}

	{

		struct tomoyo_domain_keeper_entry *ptr;

		list_for_each_entry_rcu(ptr, &tomoyo_domain_keeper_list, list) {

			if (!ptr->is_deleted)

		list_for_each_entry_rcu(ptr, &tomoyo_domain_keeper_list,

					head.list) {

			if (!ptr->head.is_deleted)

				continue;

			if (tomoyo_add_to_gc(TOMOYO_ID_DOMAIN_KEEPER, ptr))

				list_del_rcu(&ptr->list);

				list_del_rcu(&ptr->head.list);

			else

				break;

		}

	}

	{

		struct tomoyo_aggregator_entry *ptr;

		list_for_each_entry_rcu(ptr, &tomoyo_aggregator_list, list) {

			if (!ptr->is_deleted)

		list_for_each_entry_rcu(ptr, &tomoyo_aggregator_list,

					head.list) {

			if (!ptr->head.is_deleted)

				continue;

			if (tomoyo_add_to_gc(TOMOYO_ID_AGGREGATOR, ptr))

				list_del_rcu(&ptr->list);

				list_del_rcu(&ptr->head.list);

			else

				break;

		}

	}

	{

		struct tomoyo_alias_entry *ptr;

		list_for_each_entry_rcu(ptr, &tomoyo_alias_list, list) {

			if (!ptr->is_deleted)

		list_for_each_entry_rcu(ptr, &tomoyo_alias_list, head.list) {

			if (!ptr->head.is_deleted)

				continue;

			if (tomoyo_add_to_gc(TOMOYO_ID_ALIAS, ptr))

				list_del_rcu(&ptr->list);

				list_del_rcu(&ptr->head.list);

			else

				break;

		}
@@ -295,11 +298,11 @@ static void tomoyo_collect_entry(void) 
	{

		struct tomoyo_policy_manager_entry *ptr;

		list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list,

					list) {

			if (!ptr->is_deleted)

					head.list) {

			if (!ptr->head.is_deleted)

				continue;

			if (tomoyo_add_to_gc(TOMOYO_ID_MANAGER, ptr))

				list_del_rcu(&ptr->list);

				list_del_rcu(&ptr->head.list);

			else

				break;

		}
@@ -352,12 +355,12 @@ static void tomoyo_collect_entry(void) 
		list_for_each_entry_rcu(group, &tomoyo_path_group_list, list) {

			struct tomoyo_path_group_member *member;

			list_for_each_entry_rcu(member, &group->member_list,

						list) {

				if (!member->is_deleted)

						head.list) {

				if (!member->head.is_deleted)

					continue;

				if (tomoyo_add_to_gc(TOMOYO_ID_PATH_GROUP_MEMBER,

						     member))

					list_del_rcu(&member->list);

					list_del_rcu(&member->head.list);

				else

					break;

			}
@@ -375,12 +378,12 @@ static void tomoyo_collect_entry(void) 
		list_for_each_entry_rcu(group, &tomoyo_number_group_list, list) {

			struct tomoyo_number_group_member *member;

			list_for_each_entry_rcu(member, &group->member_list,

						list) {

				if (!member->is_deleted)

						head.list) {

				if (!member->head.is_deleted)

					continue;

				if (tomoyo_add_to_gc(TOMOYO_ID_NUMBER_GROUP_MEMBER,

						     member))

					list_del_rcu(&member->list);

					list_del_rcu(&member->head.list);

				else

					break;

			}