/*
* security/tomoyo/util.c
*
* Utility functions for TOMOYO.
*
* Copyright (C) 2005-2010 NTT DATA CORPORATION
*/
#include <linux/slab.h>
#include "common.h"
/* Lock for protecting policy. */
DEFINE_MUTEX(tomoyo_policy_lock);
/* Has /sbin/init started? */
bool tomoyo_policy_loaded;
/**
* tomoyo_parse_ulong - Parse an "unsigned long" value.
*
* @result: Pointer to "unsigned long".
* @str: Pointer to string to parse.
*
* Returns value type on success, 0 otherwise.
*
* The @src is updated to point the first character after the value
* on success.
*/
static u8 tomoyo_parse_ulong(unsigned long *result, char **str)
{
const char *cp = *str;
char *ep;
int base = 10;
if (*cp == '0') {
char c = *(cp + 1);
if (c == 'x' || c == 'X') {
base = 16;
cp += 2;
} else if (c >= '0' && c <= '7') {
base = 8;
cp++;
}
}
*result = simple_strtoul(cp, &ep, base);
if (cp == ep)
return 0;
*str = ep;
switch (base) {
case 16:
return TOMOYO_VALUE_TYPE_HEXADECIMAL;
case 8:
return TOMOYO_VALUE_TYPE_OCTAL;
default:
return TOMOYO_VALUE_TYPE_DECIMAL;
}
}
/**
* tomoyo_print_ulong - Print an "unsigned long" value.
*
* @buffer: Pointer to buffer.
* @buffer_len: Size of @buffer.
* @value: An "unsigned long" value.
* @type: Type of @value.
*
* Returns nothing.
*/
void tomoyo_print_ulong(char *buffer, const int buffer_len,
const unsigned long value, const u8 type)
{
if (type == TOMOYO_VALUE_TYPE_DECIMAL)
snprintf(buffer, buffer_len, "%lu", value);
else if (type == TOMOYO_VALUE_TYPE_OCTAL)
snprintf(buffer, buffer_len, "0%lo", value);
else if (type == TOMOYO_VALUE_TYPE_HEXADECIMAL)
snprintf(buffer, buffer_len, "0x%lX", value);
else
snprintf(buffer, buffer_len, "type(%u)", type);
}
/**
* tomoyo_parse_name_union - Parse a tomoyo_name_union.
*
* @filename: Name or name group.
* @ptr: Pointer to "struct tomoyo_name_union".
*
* Returns true on success, false otherwise.
*/
bool tomoyo_parse_name_union(const char *filename,
struct tomoyo_name_union *ptr)
{
if (!tomoyo_correct_word(filename))
return false;
if (filename[0] == '@') {
ptr->group = tomoyo_get_group(filename + 1, TOMOYO_PATH_GROUP);
ptr->is_group = true;
return ptr->group != NULL;
}
ptr->filename = tomoyo_get_name(filename);
ptr->is_group = false;
return ptr->filename != NULL;
}
/**
* tomoyo_parse_number_union - Parse a tomoyo_number_union.
*
* @data: Number or number range or number group.
* @ptr: Pointer to "struct tomoyo_number_union".
*
* Returns true on success, false otherwise.
*/
bool tomoyo_parse_number_union(char *data, struct tomoyo_number_union *num)
{
u8 type;
unsigned long v;
memset(num, 0, sizeof(*num));
if (data[0] == '@') {
if (!tomoyo_correct_word(data))
return false;
num->group = tomoyo_get_group(data + 1, TOMOYO_NUMBER_GROUP);
num->is_group = true;
return num->group != NULL;
}
type = tomoyo_parse_ulong(&v, &data);
if (!type)
return false;
num->values[0] = v;
num->min_type = type;
if (!*data) {
num->values[1] = v;
num->max_type = type;
return true;
}
if (*data++ != '-')
return false;
type = tomoyo_parse_ulong(&v, &data);
if (!type || *data)
return false;
num->values[1] = v;
num->max_type = type;
return true;
}
/**
* tomoyo_byte_range - Check whether the string is a \ooo style octal value.
*
* @str: Pointer to the string.
*
* Returns true if @str is a \ooo style octal value, false otherwise.
*
* TOMOYO uses \ooo style representation for 0x01 - 0x20 and 0x7F - 0xFF.
* This function verifies that \ooo is in valid range.
*/
static inline bool tomoyo_byte_range(const char *str)
{
return *str >= '0' && *str++ <= '3' &&
*str >= '0' && *str++ <= '7' &&
*str >= '0' && *str <= '7';
}
/**
* tomoyo_alphabet_char - Check whether the character is an alphabet.
*
* @c: The character to check.
*
* Returns true if @c is an alphabet character, false otherwise.
*/
static inline bool tomoyo_alphabet_char(const char c)
{
return (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z');
}
/**
* tomoyo_make_byte - Make byte value from three octal characters.
*
* @c1: The first character.
* @c2: The second character.
* @c3: The third character.
*
* Returns byte value.
*/
static inline u8 tomoyo_make_byte(const u8 c1, const u8 c2, const u8 c3)
{
return ((c1 - '0') << 6) + ((c2 - '0') << 3) + (c3 - '0');
}
/**
* tomoyo_str_starts - Check whether the given string starts with the given keyword.
*
* @src: Pointer to pointer to the string.
* @find: Pointer to the keyword.
*
* Returns true if @src starts with @find, false otherwise.
*
* The @src is updated to point the first character after the @find
* if @src starts with @find.
*/
bool tomoyo_str_starts(char **src, const char *find)
{
const int len = strlen(find);
char *tmp = *src;
if (strncmp(tmp, find, len))
return false;
tmp += len;
*src = tmp;
return true;
}
/**
* tomoyo_normalize_line - Format string.
*
* @buffer: The line to normalize.
*
* Leading and trailing whitespaces are removed.
* Multiple whitespaces are packed into single space.
*
* Returns nothing.
*/
void tomoyo_normalize_line(unsigned char *buffer)
{
unsigned char *sp = buffer;
unsigned char *dp = buffer;
bool first = true;
while (tomoyo_invalid(*sp))
sp++;
while (*sp) {
if (!first)
*dp++ = ' ';
first = false;
while (tomoyo_valid(*sp))
*dp++ = *sp++;
while (tomoyo_invalid(*sp))
sp++;
}
*dp = '\0';
}
/**
* tomoyo_tokenize - Tokenize string.
*
* @buffer: The line to tokenize.
* @w: Pointer to "char *".
* @size: Sizeof @w .
*
* Returns true on success, false otherwise.
*/
bool tomoyo_tokenize(char *buffer, char *w[], size_t size)
{
int count = size / sizeof(char *);
int i;
for (i = 0; i < count; i++)
w[i] = "";
for (i = 0; i < count; i++) {
char *cp = strchr(buffer, ' ');
if (cp)
*cp = '\0';
w[i] = buffer;
if (!cp)
break;
buffer = cp + 1;
}
return i < count || !*buffer;
}
/**
* tomoyo_correct_word2 - Validate a string.
*
* @string: The string to check. May be non-'\0'-terminated.
* @len: Length of @string.
*
* Check whether the given string follows the naming rules.
* Returns true if @string follows the naming rules, false otherwise.
*/
static bool tomoyo_correct_word2(const char *string, size_t len)
{
const char *const start = string;
bool in_repetition = false;
unsigned char c;
unsigned char d;
unsigned char e;
if (!len)
goto out;
while (len--) {
c = *string++;
if (c == '\\') {
if (!len--)
goto out;
c = *string++;
switch (c) {
case '\\': /* "\\" */
continue;
case '$': /* "\$" */
case '+': /* "\+" */
case '?': /* "\?" */
case '*': /* "\*" */
case '@': /* "\@" */
case 'x': /* "\x" */
case 'X': /* "\X" */
case 'a': /* "\a" */
case 'A': /* "\A" */
case '-': /* "\-" */
continue;
case '{': /* "/\{" */
if (string - 3 < start || *(string - 3) != '/')
break;
in_repetition = true;
continue;
case '}': /* "\}/" */
if (*string != '/')
break;
if (!in_repetition)
break;
in_repetition = false;
continue;
case '0': /* "\ooo" */
case '1':
case '2':
case '3':
if (!len-- || !len--)
break;
d = *string++;
e = *string++;
if (d < '0' || d > '7' || e < '0' || e > '7')
break;
c = tomoyo_make_byte(c, d, e);
if (tomoyo_invalid(c))
continue; /* pattern is not \000 */
}
goto out;
} else if (in_repetition && c == '/') {
goto out;
} else if (tomoyo_invalid(c)) {
goto out;
}
}
if (in_repetition)
goto out;
return true;
out:
return false;
}
/**
* tomoyo_correct_word - Validate a string.
*
* @string: The string to check.
*
* Check whether the given string follows the naming rules.
* Returns true if @string follows the naming rules, false otherwise.
*/
bool tomoyo_correct_word(const char *string)
{
return tomoyo_correct_word2(string, strlen(string));
}
/**
* tomoyo_correct_path - Validate a pathname.
*
* @filename: The pathname to check.
*
* Check whether the given pathname follows the naming rules.
* Returns true if @filename follows the naming rules, false otherwise.
*/
bool tomoyo_correct_path(const char *filename)
{
return *filename == '/' && tomoyo_correct_word(filename);
}
/**
* tomoyo_correct_domain - Check whether the given domainname follows the naming rules.
*
* @domainname: The domainname to check.
*
* Returns true if @domainname follows the naming rules, false otherwise.
*/
bool tomoyo_correct_domain(const unsigned char *domainname)
{
if (!domainname || strncmp(domainname, TOMOYO_ROOT_NAME,
TOMOYO_ROOT_NAME_LEN))
goto out;
domainname += TOMOYO_ROOT_NAME_LEN;
if (!*domainname)
return true;
if (*domainname++ != ' ')
goto out;
while (1) {
const unsigned char *cp = strchr(domainname, ' ');
if (!cp)
break;
if (*domainname != '/' ||
!tomoyo_correct_word2(domainname, cp - domainname - 1))
goto out;
domainname = cp + 1;
}
return tomoyo_correct_path(domainname);
out:
return false;
}
/**
* tomoyo_domain_def - Check whether the given token can be a domainname.
*
* @buffer: The token to check.
*
* Returns true if @buffer possibly be a domainname, false otherwise.
*/
bool tomoyo_domain_def(const unsigned char *buffer)
{
return !strncmp(buffer, TOMOYO_ROOT_NAME, TOMOYO_ROOT_NAME_LEN);
}
/**
* tomoyo_find_domain - Find a domain by the given name.
*
* @domainname: The domainname to find.
*
* Returns pointer to "struct tomoyo_domain_info" if found, NULL otherwise.
*
* Caller holds tomoyo_read_lock().
*/
struct tomoyo_domain_info *tomoyo_find_domain(const char *domainname)
{
struct tomoyo_domain_info *domain;
struct tomoyo_path_info name;
name.name = domainname;
tomoyo_fill_path_info(&name);
list_for_each_entry_rcu(domain, &tomoyo_domain_list, list) {
if (!domain->is_deleted &&
!tomoyo_pathcmp(&name, domain->domainname))
return domain;
}
return NULL;
}
/**
* tomoyo_const_part_length - Evaluate the initial length without a pattern in a token.
*
* @filename: The string to evaluate.
*
* Returns the initial length without a pattern in @filename.
*/
static int tomoyo_const_part_length(const char *filename)
{
char c;
int len = 0;
if (!filename)
return 0;
while ((c = *filename++) != '\0') {
if (c != '\\') {
len++;
continue;
}
c = *filename++;
switch (c) {
case '\\': /* "\\" */
len += 2;
continue;
case '0': /* "\ooo" */
case '1':
case '2':
case '3':
c = *filename++;
if (c < '0' || c > '7')
break;
c = *filename++;
if (c < '0' || c > '7')
break;
len += 4;
continue;
}
break;
}
return len;
}
/**
* tomoyo_fill_path_info - Fill in "struct tomoyo_path_info" members.
*
* @ptr: Pointer to "struct tomoyo_path_info" to fill in.
*
* The caller sets "struct tomoyo_path_info"->name.
*/
void tomoyo_fill_path_info(struct tomoyo_path_info *ptr)
{
const char *name = ptr->name;
const int len = strlen(name);
ptr->const_len = tomoyo_const_part_length(name);
ptr->is_dir = len && (name[len - 1] == '/');
ptr->is_patterned = (ptr->const_len < len);
ptr->hash = full_name_hash(name, len);
}
/**
* tomoyo_file_matches_pattern2 - Pattern matching without '/' character and "\-" pattern.
*
* @filename: The start of string to check.
* @filename_end: The end of string to check.
* @pattern: The start of pattern to compare.
* @pattern_end: The end of pattern to compare.
*
* Returns true if @filename matches @pattern, false otherwise.
*/
static bool tomoyo_file_matches_pattern2(const char *filename,
const char *filename_end,
const char *pattern,
const char *pattern_end)
{
while (filename < filename_end && pattern < pattern_end) {
char c;
if (*pattern != '\\') {
if (*filename++ != *pattern++)
return false;
continue;
}
c = *filename;
pattern++;
switch (*pattern) {
int i;
int j;
case '?':
if (c == '/') {
return false;
} else if (c == '\\') {
if (filename[1] == '\\')
filename++;
else if (tomoyo_byte_range(filename + 1))
filename += 3;
else
return false;
}
break;
case '\\':
if (c != '\\')
return false;
if (*++filename != '\\')
return false;
break;
case '+':
if (!isdigit(c))
return false;
break;
case 'x':
if (!isxdigit(c))
return false;
break;
case 'a':
if (!tomoyo_alphabet_char(c))
return false;
break;
case '0':
case '1':
case '2':
case '3':
if (c == '\\' && tomoyo_byte_range(filename + 1)
&& strncmp(filename + 1, pattern, 3) == 0) {
filename += 3;
pattern += 2;
break;
}
return false; /* Not matched. */
case '*':
case '@':
for (i = 0; i <= filename_end - filename; i++) {
if (tomoyo_file_matches_pattern2(
filename + i, filename_end,
pattern + 1, pattern_end))
return true;
c = filename[i];
if (c == '.' && *pattern == '@')
break;
if (c != '\\')
continue;
if (filename[i + 1] == '\\')
i++;
else if (tomoyo_byte_range(filename + i + 1))
i += 3;
else
break; /* Bad pattern. */
}
return false; /* Not matched. */
default:
j = 0;
c = *pattern;
if (c == '$') {
while (isdigit(filename[j]))
j++;
} else if (c == 'X') {
while (isxdigit(filename[j]))
j++;
} else if (c == 'A') {
while (tomoyo_alphabet_char(filename[j]))
j++;
}
for (i = 1; i <= j; i++) {
if (tomoyo_file_matches_pattern2(
filename + i, filename_end,
pattern + 1, pattern_end))
return true;
}
return false; /* Not matched or bad pattern. */
}
filename++;
pattern++;
}
while (*pattern == '\\' &&
(*(pattern + 1) == '*' || *(pattern + 1) == '@'))
pattern += 2;
return filename == filename_end && pattern == pattern_end;
}
/**
* tomoyo_file_matches_pattern - Pattern matching without '/' character.
*
* @filename: The start of string to check.
* @filename_end: The end of string to check.
* @pattern: The start of pattern to compare.
* @pattern_end: The end of pattern to compare.
*
* Returns true if @filename matches @pattern, false otherwise.
*/
static bool tomoyo_file_matches_pattern(const char *filename,
const char *filename_end,
const char *pattern,
const char *pattern_end)
{
const char *pattern_start = pattern;
bool first = true;
bool result;
while (pattern < pattern_end - 1) {
/* Split at "\-" pattern. */
if (*pattern++ != '\\' || *pattern++ != '-')
continue;
result = tomoyo_file_matches_pattern2(filename,
filename_end,
pattern_start,
pattern - 2);
if (first)
result = !result;
if (result)
return false;
first = false;
pattern_start = pattern;
}
result = tomoyo_file_matches_pattern2(filename, filename_end,
pattern_start, pattern_end);
return first ? result : !result;
}
/**
* tomoyo_path_matches_pattern2 - Do pathname pattern matching.
*
* @f: The start of string to check.
* @p: The start of pattern to compare.
*
* Returns true if @f matches @p, false otherwise.
*/
static bool tomoyo_path_matches_pattern2(const char *f, const char *p)
{
const char *f_delimiter;
const char *p_delimiter;
while (*f && *p) {
f_delimiter = strchr(f, '/');
if (!f_delimiter)
f_delimiter = f + strlen(f);
p_delimiter = strchr(p, '/');
if (!p_delimiter)
p_delimiter = p + strlen(p);
if (*p == '\\' && *(p + 1) == '{')
goto recursive;
if (!tomoyo_file_matches_pattern(f, f_delimiter, p,
p_delimiter))
return false;
f = f_delimiter;
if (*f)
f++;
p = p_delimiter;
if (*p)
p++;
}
/* Ignore trailing "\*" and "\@" in @pattern. */
while (*p == '\\' &&
(*(p + 1) == '*' || *(p + 1) == '@'))
p += 2;
return !*f && !*p;
recursive:
/*
* The "\{" pattern is permitted only after '/' character.
* This guarantees that below "*(p - 1)" is safe.
* Also, the "\}" pattern is permitted only before '/' character
* so that "\{" + "\}" pair will not break the "\-" operator.
*/
if (*(p - 1) != '/' || p_delimiter <= p + 3 || *p_delimiter != '/' ||
*(p_delimiter - 1) != '}' || *(p_delimiter - 2) != '\\')
return false; /* Bad pattern. */
do {
/* Compare current component with pattern. */
if (!tomoyo_file_matches_pattern(f, f_delimiter, p + 2,
p_delimiter - 2))
break;
/* Proceed to next component. */
f = f_delimiter;
if (!*f)
break;
f++;
/* Continue comparison. */
if (tomoyo_path_matches_pattern2(f, p_delimiter + 1))
return true;
f_delimiter = strchr(f, '/');
} while (f_delimiter);
return false; /* Not matched. */
}
/**
* tomoyo_path_matches_pattern - Check whether the given filename matches the given pattern.
*
* @filename: The filename to check.
* @pattern: The pattern to compare.
*
* Returns true if matches, false otherwise.
*
* The following patterns are available.
* \\ \ itself.
* \ooo Octal representation of a byte.
* \* Zero or more repetitions of characters other than '/'.
* \@ Zero or more repetitions of characters other than '/' or '.'.
* \? 1 byte character other than '/'.
* \$ One or more repetitions of decimal digits.
* \+ 1 decimal digit.
* \X One or more repetitions of hexadecimal digits.
* \x 1 hexadecimal digit.
* \A One or more repetitions of alphabet characters.
* \a 1 alphabet character.
*
* \- Subtraction operator.
*
* /\{dir\}/ '/' + 'One or more repetitions of dir/' (e.g. /dir/ /dir/dir/
* /dir/dir/dir/ ).
*/
bool tomoyo_path_matches_pattern(const struct tomoyo_path_info *filename,
const struct tomoyo_path_info *pattern)
{
const char *f = filename->name;
const char *p = pattern->name;
const int len = pattern->const_len;
/* If @pattern doesn't contain pattern, I can use strcmp(). */
if (!pattern->is_patterned)
return !tomoyo_pathcmp(filename, pattern);
/* Don't compare directory and non-directory. */
if (filename->is_dir != pattern->is_dir)
return false;
/* Compare the initial length without patterns. */
if (strncmp(f, p, len))
return false;
f += len;
p += len;
return tomoyo_path_matches_pattern2(f, p);
}
/**
* tomoyo_get_exe - Get tomoyo_realpath() of current process.
*
* Returns the tomoyo_realpath() of current process on success, NULL otherwise.
*
* This function uses kzalloc(), so the caller must call kfree()
* if this function didn't return NULL.
*/
const char *tomoyo_get_exe(void)
{
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
const char *cp = NULL;
if (!mm)
return NULL;
down_read(&mm->mmap_sem);
for (vma = mm->mmap; vma; vma = vma->vm_next) {
if ((vma->vm_flags & VM_EXECUTABLE) && vma->vm_file) {
cp = tomoyo_realpath_from_path(&vma->vm_file->f_path);
break;
}
}
up_read(&mm->mmap_sem);
return cp;
}
/**
* tomoyo_get_mode - Get MAC mode.
*
* @profile: Profile number.
* @index: Index number of functionality.
*
* Returns mode.
*/
int tomoyo_get_mode(const u8 profile, const u8 index)
{
u8 mode;
const u8 category = TOMOYO_MAC_CATEGORY_FILE;
if (!tomoyo_policy_loaded)
return TOMOYO_CONFIG_DISABLED;
mode = tomoyo_profile(profile)->config[index];
if (mode == TOMOYO_CONFIG_USE_DEFAULT)
mode = tomoyo_profile(profile)->config[category];
if (mode == TOMOYO_CONFIG_USE_DEFAULT)
mode = tomoyo_profile(profile)->default_config;
return mode & 3;
}
/**
* tomoyo_init_request_info - Initialize "struct tomoyo_request_info" members.
*
* @r: Pointer to "struct tomoyo_request_info" to initialize.
* @domain: Pointer to "struct tomoyo_domain_info". NULL for tomoyo_domain().
* @index: Index number of functionality.
*
* Returns mode.
*/
int tomoyo_init_request_info(struct tomoyo_request_info *r,
struct tomoyo_domain_info *domain, const u8 index)
{
u8 profile;
memset(r, 0, sizeof(*r));
if (!domain)
domain = tomoyo_domain();
r->domain = domain;
profile = domain->profile;
r->profile = profile;
r->type = index;
r->mode = tomoyo_get_mode(profile, index);
return r->mode;
}
/**
* tomoyo_last_word - Get last component of a line.
*
* @line: A line.
*
* Returns the last word of a line.
*/
const char *tomoyo_last_word(const char *name)
{
const char *cp = strrchr(name, ' ');
if (cp)
return cp + 1;
return name;
}
/**
* tomoyo_warn_log - Print warning or error message on console.
*
* @r: Pointer to "struct tomoyo_request_info".
* @fmt: The printf()'s format string, followed by parameters.
*/
void tomoyo_warn_log(struct tomoyo_request_info *r, const char *fmt, ...)
{
va_list args;
char *buffer;
const struct tomoyo_domain_info * const domain = r->domain;
const struct tomoyo_profile *profile = tomoyo_profile(domain->profile);
switch (r->mode) {
case TOMOYO_CONFIG_ENFORCING:
if (!profile->enforcing->enforcing_verbose)
return;
break;
case TOMOYO_CONFIG_PERMISSIVE:
if (!profile->permissive->permissive_verbose)
return;
break;
case TOMOYO_CONFIG_LEARNING:
if (!profile->learning->learning_verbose)
return;
break;
}
buffer = kmalloc(4096, GFP_NOFS);
if (!buffer)
return;
va_start(args, fmt);
vsnprintf(buffer, 4095, fmt, args);
va_end(args);
buffer[4095] = '\0';
printk(KERN_WARNING "%s: Access %s denied for %s\n",
r->mode == TOMOYO_CONFIG_ENFORCING ? "ERROR" : "WARNING", buffer,
tomoyo_last_word(domain->domainname->name));
kfree(buffer);
}
/**
* tomoyo_domain_quota_is_ok - Check for domain's quota.
*
* @r: Pointer to "struct tomoyo_request_info".
*
* Returns true if the domain is not exceeded quota, false otherwise.
*
* Caller holds tomoyo_read_lock().
*/
bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r)
{
unsigned int count = 0;
struct tomoyo_domain_info *domain = r->domain;
struct tomoyo_acl_info *ptr;
if (r->mode != TOMOYO_CONFIG_LEARNING)
return false;
if (!domain)
return true;
list_for_each_entry_rcu(ptr, &domain->acl_info_list, list) {
if (ptr->is_deleted)
continue;
switch (ptr->type) {
u16 perm;
u8 i;
case TOMOYO_TYPE_PATH_ACL:
perm = container_of(ptr, struct tomoyo_path_acl, head)
->perm;
for (i = 0; i < TOMOYO_MAX_PATH_OPERATION; i++)
if (perm & (1 << i))
count++;
if (perm & (1 << TOMOYO_TYPE_READ_WRITE))
count -= 2;
break;
case TOMOYO_TYPE_PATH2_ACL:
perm = container_of(ptr, struct tomoyo_path2_acl, head)
->perm;
for (i = 0; i < TOMOYO_MAX_PATH2_OPERATION; i++)
if (perm & (1 << i))
count++;
break;
case TOMOYO_TYPE_PATH_NUMBER_ACL:
perm = container_of(ptr, struct tomoyo_path_number_acl,
head)->perm;
for (i = 0; i < TOMOYO_MAX_PATH_NUMBER_OPERATION; i++)
if (perm & (1 << i))
count++;
break;
case TOMOYO_TYPE_MKDEV_ACL:
perm = container_of(ptr, struct tomoyo_mkdev_acl,
head)->perm;
for (i = 0; i < TOMOYO_MAX_MKDEV_OPERATION; i++)
if (perm & (1 << i))
count++;
break;
default:
count++;
}
}
if (count < tomoyo_profile(domain->profile)->learning->
learning_max_entry)
return true;
if (!domain->quota_warned) {
domain->quota_warned = true;
printk(KERN_WARNING "TOMOYO-WARNING: "
"Domain '%s' has so many ACLs to hold. "
"Stopped learning mode.\n", domain->domainname->name);
}
return false;
}
