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TOMOYO: Remove wrapper function for reading keyword.

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

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Tetsuo Handa 2010-06-16 16:26:38 +09:00 committed by James Morris
parent d795ef9e75
commit 71c282362d
3 changed files with 14 additions and 70 deletions
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8
security/tomoyo/common.c
View file

@ -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) ||

11
security/tomoyo/common.h
View file

@ -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;

65
security/tomoyo/file.c
View file

@ -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;