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Commit 71c28236 authored by Tetsuo Handa's avatar Tetsuo Handa Committed by James Morris
Browse files

TOMOYO: Remove wrapper function for reading keyword. 



Keyword strings are read-only. We can directly access them to reduce code size.

Signed-off-by: default avatarTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: default avatarJames Morris <jmorris@namei.org>
parent d795ef9e

security/tomoyo/common.c

+4 −4
Original line number Diff line number Diff line
@@ -812,7 +812,7 @@ static bool tomoyo_print_path_acl(struct tomoyo_io_buffer *head, 
			continue;

		pos = head->read_avail;

		if (!tomoyo_io_printf(head, "allow_%s ",

				      tomoyo_path2keyword(bit)) ||

				      tomoyo_path_keyword[bit]) ||

		    !tomoyo_print_name_union(head, &ptr->name) ||

		    !tomoyo_io_printf(head, "\n"))

			goto out;
@@ -845,7 +845,7 @@ static bool tomoyo_print_path2_acl(struct tomoyo_io_buffer *head, 
			continue;

		pos = head->read_avail;

		if (!tomoyo_io_printf(head, "allow_%s ",

				      tomoyo_path22keyword(bit)) ||

				      tomoyo_path2_keyword[bit]) ||

		    !tomoyo_print_name_union(head, &ptr->name1) ||

		    !tomoyo_print_name_union(head, &ptr->name2) ||

		    !tomoyo_io_printf(head, "\n"))
@@ -879,7 +879,7 @@ static bool tomoyo_print_path_number_acl(struct tomoyo_io_buffer *head, 
			continue;

		pos = head->read_avail;

		if (!tomoyo_io_printf(head, "allow_%s",

				      tomoyo_path_number2keyword(bit)) ||

				      tomoyo_path_number_keyword[bit]) ||

		    !tomoyo_print_name_union(head, &ptr->name) ||

		    !tomoyo_print_number_union(head, &ptr->number) ||

		    !tomoyo_io_printf(head, "\n"))
@@ -913,7 +913,7 @@ static bool tomoyo_print_mkdev_acl(struct tomoyo_io_buffer *head, 
			continue;

		pos = head->read_avail;

		if (!tomoyo_io_printf(head, "allow_%s",

				      tomoyo_mkdev2keyword(bit)) ||

				      tomoyo_mkdev_keyword[bit]) ||

		    !tomoyo_print_name_union(head, &ptr->name) ||

		    !tomoyo_print_number_union(head, &ptr->mode) ||

		    !tomoyo_print_number_union(head, &ptr->major) ||

security/tomoyo/common.h

+5 −6
Original line number Diff line number Diff line
@@ -804,14 +804,8 @@ bool tomoyo_read_no_rewrite_policy(struct tomoyo_io_buffer *head); 
bool tomoyo_tokenize(char *buffer, char *w[], size_t size);

/* Write domain policy violation warning message to console? */

bool tomoyo_verbose_mode(const struct tomoyo_domain_info *domain);

/* Convert double path operation to operation name. */

const char *tomoyo_path22keyword(const u8 operation);

const char *tomoyo_path_number2keyword(const u8 operation);

const char *tomoyo_mkdev2keyword(const u8 operation);

/* Get the last component of the given domainname. */

const char *tomoyo_get_last_name(const struct tomoyo_domain_info *domain);

/* Convert single path operation to operation name. */

const char *tomoyo_path2keyword(const u8 operation);

/* Fill "struct tomoyo_request_info". */

int tomoyo_init_request_info(struct tomoyo_request_info *r,

			     struct tomoyo_domain_info *domain,
@@ -985,6 +979,11 @@ extern bool tomoyo_policy_loaded; 
/* The kernel's domain. */

extern struct tomoyo_domain_info tomoyo_kernel_domain;



extern const char *tomoyo_path_keyword[TOMOYO_MAX_PATH_OPERATION];

extern const char *tomoyo_mkdev_keyword[TOMOYO_MAX_MKDEV_OPERATION];

extern const char *tomoyo_path2_keyword[TOMOYO_MAX_PATH2_OPERATION];

extern const char *tomoyo_path_number_keyword[TOMOYO_MAX_PATH_NUMBER_OPERATION];



extern unsigned int tomoyo_quota_for_query;

extern unsigned int tomoyo_query_memory_size;

security/tomoyo/file.c

+5 −60
Original line number Diff line number Diff line
@@ -10,7 +10,7 @@ 
#include <linux/slab.h>



/* Keyword array for operations with one pathname. */

static const char *tomoyo_path_keyword[TOMOYO_MAX_PATH_OPERATION] = {

const char *tomoyo_path_keyword[TOMOYO_MAX_PATH_OPERATION] = {

	[TOMOYO_TYPE_READ_WRITE] = "read/write",

	[TOMOYO_TYPE_EXECUTE]    = "execute",

	[TOMOYO_TYPE_READ]       = "read",
@@ -25,22 +25,20 @@ static const char *tomoyo_path_keyword[TOMOYO_MAX_PATH_OPERATION] = { 
};



/* Keyword array for operations with one pathname and three numbers. */

static const char *tomoyo_mkdev_keyword

[TOMOYO_MAX_MKDEV_OPERATION] = {

const char *tomoyo_mkdev_keyword[TOMOYO_MAX_MKDEV_OPERATION] = {

	[TOMOYO_TYPE_MKBLOCK]    = "mkblock",

	[TOMOYO_TYPE_MKCHAR]     = "mkchar",

};



/* Keyword array for operations with two pathnames. */

static const char *tomoyo_path2_keyword[TOMOYO_MAX_PATH2_OPERATION] = {

const char *tomoyo_path2_keyword[TOMOYO_MAX_PATH2_OPERATION] = {

	[TOMOYO_TYPE_LINK]       = "link",

	[TOMOYO_TYPE_RENAME]     = "rename",

	[TOMOYO_TYPE_PIVOT_ROOT] = "pivot_root",

};



/* Keyword array for operations with one pathname and one number. */

static const char *tomoyo_path_number_keyword

[TOMOYO_MAX_PATH_NUMBER_OPERATION] = {

const char *tomoyo_path_number_keyword[TOMOYO_MAX_PATH_NUMBER_OPERATION] = {

	[TOMOYO_TYPE_CREATE]     = "create",

	[TOMOYO_TYPE_MKDIR]      = "mkdir",

	[TOMOYO_TYPE_MKFIFO]     = "mkfifo",
@@ -119,58 +117,6 @@ bool tomoyo_compare_number_union(const unsigned long value, 
	return value >= ptr->values[0] && value <= ptr->values[1];

}



/**

 * tomoyo_path2keyword - Get the name of single path operation.

 *

 * @operation: Type of operation.

 *

 * Returns the name of single path operation.

 */

const char *tomoyo_path2keyword(const u8 operation)

{

	return (operation < TOMOYO_MAX_PATH_OPERATION)

		? tomoyo_path_keyword[operation] : NULL;

}



/**

 * tomoyo_mkdev2keyword - Get the name of path/number/number/number operations.

 *

 * @operation: Type of operation.

 *

 * Returns the name of path/number/number/number operation.

 */

const char *tomoyo_mkdev2keyword(const u8 operation)

{

	return (operation < TOMOYO_MAX_MKDEV_OPERATION)

		? tomoyo_mkdev_keyword[operation] : NULL;

}



/**

 * tomoyo_path22keyword - Get the name of double path operation.

 *

 * @operation: Type of operation.

 *

 * Returns the name of double path operation.

 */

const char *tomoyo_path22keyword(const u8 operation)

{

	return (operation < TOMOYO_MAX_PATH2_OPERATION)

		? tomoyo_path2_keyword[operation] : NULL;

}



/**

 * tomoyo_path_number2keyword - Get the name of path/number operations.

 *

 * @operation: Type of operation.

 *

 * Returns the name of path/number operation.

 */

const char *tomoyo_path_number2keyword(const u8 operation)

{

	return (operation < TOMOYO_MAX_PATH_NUMBER_OPERATION)

		? tomoyo_path_number_keyword[operation] : NULL;

}



static void tomoyo_add_slash(struct tomoyo_path_info *buf)

{

	if (buf->is_dir)
@@ -266,8 +212,7 @@ static int tomoyo_audit_path2_log(struct tomoyo_request_info *r) 
 */

static int tomoyo_audit_mkdev_log(struct tomoyo_request_info *r)

{

	const char *operation = tomoyo_mkdev2keyword(r->param.mkdev.

							    operation);

	const char *operation = tomoyo_mkdev_keyword[r->param.mkdev.operation];

	const struct tomoyo_path_info *filename = r->param.mkdev.filename;

	const unsigned int major = r->param.mkdev.major;

	const unsigned int minor = r->param.mkdev.minor;