| 1 |
/* |
/* |
| 2 |
* fs/ccs_common.c |
* security/ccsecurity/util.c |
| 3 |
* |
* |
| 4 |
* Common functions for SAKURA and TOMOYO. |
* Copyright (C) 2005-2009 NTT DATA CORPORATION |
| 5 |
* |
* |
| 6 |
* Copyright (C) 2005-2007 NTT DATA CORPORATION |
* Version: 1.7.0-pre 2009/08/08 |
|
* |
|
|
* Version: 1.5.2-pre 2007/11/29 |
|
| 7 |
* |
* |
| 8 |
* This file is applicable to both 2.4.30 and 2.6.11 and later. |
* This file is applicable to both 2.4.30 and 2.6.11 and later. |
| 9 |
* See README.ccs for ChangeLog. |
* See README.ccs for ChangeLog. |
| 10 |
* |
* |
| 11 |
*/ |
*/ |
| 12 |
|
|
| 13 |
#include <linux/string.h> |
#include "internal.h" |
|
#include <linux/mm.h> |
|
|
#include <linux/utime.h> |
|
|
#include <linux/file.h> |
|
|
#include <linux/module.h> |
|
|
#include <linux/slab.h> |
|
|
#include <asm/uaccess.h> |
|
|
#include <stdarg.h> |
|
|
#include <linux/version.h> |
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0) |
|
|
#include <linux/namei.h> |
|
|
#include <linux/mount.h> |
|
|
static const int lookup_flags = LOOKUP_FOLLOW; |
|
|
#else |
|
|
static const int lookup_flags = LOOKUP_FOLLOW | LOOKUP_POSITIVE; |
|
|
#endif |
|
|
#include <linux/realpath.h> |
|
|
#include <linux/ccs_common.h> |
|
|
#include <linux/ccs_proc.h> |
|
|
#include <linux/tomoyo.h> |
|
| 14 |
|
|
| 15 |
#ifdef CONFIG_TOMOYO_MAX_ACCEPT_ENTRY |
DEFINE_MUTEX(ccs_policy_lock); |
|
#define MAX_ACCEPT_ENTRY (CONFIG_TOMOYO_MAX_ACCEPT_ENTRY) |
|
|
#else |
|
|
#define MAX_ACCEPT_ENTRY 2048 |
|
|
#endif |
|
|
#ifdef CONFIG_TOMOYO_MAX_GRANT_LOG |
|
|
#define MAX_GRANT_LOG (CONFIG_TOMOYO_MAX_GRANT_LOG) |
|
|
#else |
|
|
#define MAX_GRANT_LOG 1024 |
|
|
#endif |
|
|
#ifdef CONFIG_TOMOYO_MAX_REJECT_LOG |
|
|
#define MAX_REJECT_LOG (CONFIG_TOMOYO_MAX_REJECT_LOG) |
|
|
#else |
|
|
#define MAX_REJECT_LOG 1024 |
|
|
#endif |
|
| 16 |
|
|
| 17 |
/************************* VARIABLES *************************/ |
/* Has /sbin/init started? */ |
| 18 |
|
bool ccs_policy_loaded; |
| 19 |
|
|
| 20 |
/* /sbin/init started? */ |
/* Profile table. Memory is allocated as needed. */ |
| 21 |
int sbin_init_started = 0; |
struct ccs_profile *ccs_profile_ptr[CCS_MAX_PROFILES]; |
| 22 |
|
|
| 23 |
const char *ccs_log_level = KERN_DEBUG; |
/* Utility functions. */ |
| 24 |
|
|
| 25 |
static struct { |
/** |
| 26 |
const char *keyword; |
* ccs_parse_ulong - Parse an "unsigned long" value. |
| 27 |
unsigned int current_value; |
* |
| 28 |
const unsigned int max_value; |
* @result: Pointer to "unsigned long". |
| 29 |
} ccs_control_array[CCS_MAX_CONTROL_INDEX] = { |
* @str: Pointer to string to parse. |
| 30 |
[CCS_PROFILE_COMMENT] = { "COMMENT", 0, 0 }, /* Reserved for string. */ |
* |
| 31 |
[CCS_TOMOYO_MAC_FOR_FILE] = { "MAC_FOR_FILE", 0, 3 }, |
* Returns value type on success, 0 otherwise. |
| 32 |
[CCS_TOMOYO_MAC_FOR_ARGV0] = { "MAC_FOR_ARGV0", 0, 3 }, |
* |
| 33 |
[CCS_TOMOYO_MAC_FOR_ENV] = { "MAC_FOR_ENV", 0, 3 }, |
* The @src is updated to point the first character after the value |
| 34 |
[CCS_TOMOYO_MAC_FOR_NETWORK] = { "MAC_FOR_NETWORK", 0, 3 }, |
* on success. |
| 35 |
[CCS_TOMOYO_MAC_FOR_SIGNAL] = { "MAC_FOR_SIGNAL", 0, 3 }, |
*/ |
| 36 |
[CCS_SAKURA_DENY_CONCEAL_MOUNT] = { "DENY_CONCEAL_MOUNT", 0, 3 }, |
u8 ccs_parse_ulong(unsigned long *result, char **str) |
| 37 |
[CCS_SAKURA_RESTRICT_CHROOT] = { "RESTRICT_CHROOT", 0, 3 }, |
{ |
| 38 |
[CCS_SAKURA_RESTRICT_MOUNT] = { "RESTRICT_MOUNT", 0, 3 }, |
const char *cp = *str; |
| 39 |
[CCS_SAKURA_RESTRICT_UNMOUNT] = { "RESTRICT_UNMOUNT", 0, 3 }, |
char *ep; |
| 40 |
[CCS_SAKURA_RESTRICT_PIVOT_ROOT] = { "RESTRICT_PIVOT_ROOT", 0, 3 }, |
int base = 10; |
| 41 |
[CCS_SAKURA_RESTRICT_AUTOBIND] = { "RESTRICT_AUTOBIND", 0, 1 }, |
if (*cp == '0') { |
| 42 |
[CCS_TOMOYO_MAX_ACCEPT_ENTRY] = { "MAX_ACCEPT_ENTRY", MAX_ACCEPT_ENTRY, INT_MAX }, |
char c = *(cp + 1); |
| 43 |
[CCS_TOMOYO_MAX_GRANT_LOG] = { "MAX_GRANT_LOG", MAX_GRANT_LOG, INT_MAX }, |
if (c == 'x' || c == 'X') { |
| 44 |
[CCS_TOMOYO_MAX_REJECT_LOG] = { "MAX_REJECT_LOG", MAX_REJECT_LOG, INT_MAX }, |
base = 16; |
| 45 |
[CCS_TOMOYO_VERBOSE] = { "TOMOYO_VERBOSE", 1, 1 }, |
cp += 2; |
| 46 |
[CCS_ALLOW_ENFORCE_GRACE] = { "ALLOW_ENFORCE_GRACE", 0, 1 }, |
} else if (c >= '0' && c <= '7') { |
| 47 |
[CCS_SLEEP_PERIOD] = { "SLEEP_PERIOD", 0, 3000 }, /* in 0.1 second */ |
base = 8; |
| 48 |
[CCS_TOMOYO_ALT_EXEC] = { "ALT_EXEC", 0, 0 }, /* Reserved for string. */ |
cp++; |
| 49 |
}; |
} |
| 50 |
|
} |
| 51 |
struct profile { |
*result = simple_strtoul(cp, &ep, base); |
| 52 |
unsigned int value[CCS_MAX_CONTROL_INDEX]; |
if (cp == ep) |
| 53 |
const struct path_info *comment; |
return 0; |
| 54 |
const struct path_info *alt_exec; |
*str = ep; |
| 55 |
}; |
switch (base) { |
| 56 |
|
case 16: |
| 57 |
static struct profile *profile_ptr[MAX_PROFILES]; |
return CCS_VALUE_TYPE_HEXADECIMAL; |
| 58 |
|
case 8: |
| 59 |
/************************* UTILITY FUNCTIONS *************************/ |
return CCS_VALUE_TYPE_OCTAL; |
| 60 |
|
default: |
| 61 |
|
return CCS_VALUE_TYPE_DECIMAL; |
| 62 |
|
} |
| 63 |
|
} |
| 64 |
|
|
| 65 |
#ifdef CONFIG_TOMOYO |
/** |
| 66 |
static int __init TOMOYO_Quiet_Setup(char *str) |
* ccs_print_ulong - Print an "unsigned long" value. |
| 67 |
|
* |
| 68 |
|
* @buffer: Pointer to buffer. |
| 69 |
|
* @buffer_len: Size of @buffer. |
| 70 |
|
* @value: An "unsigned long" value. |
| 71 |
|
* @type: Type of @value. |
| 72 |
|
* |
| 73 |
|
* Returns nothing. |
| 74 |
|
*/ |
| 75 |
|
void ccs_print_ulong(char *buffer, const int buffer_len, |
| 76 |
|
const unsigned long value, const u8 type) |
| 77 |
{ |
{ |
| 78 |
ccs_control_array[CCS_TOMOYO_VERBOSE].current_value = 0; |
if (type == CCS_VALUE_TYPE_DECIMAL) |
| 79 |
return 0; |
snprintf(buffer, buffer_len, "%lu", value); |
| 80 |
|
else if (type == CCS_VALUE_TYPE_OCTAL) |
| 81 |
|
snprintf(buffer, buffer_len, "0%lo", value); |
| 82 |
|
else if (type == CCS_VALUE_TYPE_HEXADECIMAL) |
| 83 |
|
snprintf(buffer, buffer_len, "0x%lX", value); |
| 84 |
|
else |
| 85 |
|
snprintf(buffer, buffer_len, "type(%u)", type); |
| 86 |
|
} |
| 87 |
|
|
| 88 |
|
bool ccs_parse_name_union(const char *filename, struct ccs_name_union *ptr) |
| 89 |
|
{ |
| 90 |
|
if (!ccs_is_correct_path(filename, 0, 0, 0)) |
| 91 |
|
return false; |
| 92 |
|
if (filename[0] == '@') { |
| 93 |
|
ptr->group = ccs_get_path_group(filename + 1); |
| 94 |
|
ptr->is_group = true; |
| 95 |
|
return ptr->group != NULL; |
| 96 |
|
} |
| 97 |
|
ptr->filename = ccs_get_name(filename); |
| 98 |
|
ptr->is_group = false; |
| 99 |
|
return ptr->filename != NULL; |
| 100 |
|
} |
| 101 |
|
|
| 102 |
|
bool ccs_parse_number_union(char *data, struct ccs_number_union *num) |
| 103 |
|
{ |
| 104 |
|
u8 type; |
| 105 |
|
unsigned long v; |
| 106 |
|
memset(num, 0, sizeof(*num)); |
| 107 |
|
if (data[0] == '@') { |
| 108 |
|
if (!ccs_is_correct_path(data, 0, 0, 0)) |
| 109 |
|
return false; |
| 110 |
|
num->group = ccs_get_number_group(data + 1); |
| 111 |
|
num->is_group = true; |
| 112 |
|
return num->group != NULL; |
| 113 |
|
} |
| 114 |
|
type = ccs_parse_ulong(&v, &data); |
| 115 |
|
if (!type) |
| 116 |
|
return false; |
| 117 |
|
num->values[0] = v; |
| 118 |
|
num->min_type = type; |
| 119 |
|
if (!*data) { |
| 120 |
|
num->values[1] = v; |
| 121 |
|
num->max_type = type; |
| 122 |
|
return true; |
| 123 |
|
} |
| 124 |
|
if (*data++ != '-') |
| 125 |
|
return false; |
| 126 |
|
type = ccs_parse_ulong(&v, &data); |
| 127 |
|
if (!type || *data) |
| 128 |
|
return false; |
| 129 |
|
num->values[1] = v; |
| 130 |
|
num->max_type = type; |
| 131 |
|
return true; |
| 132 |
} |
} |
| 133 |
|
|
| 134 |
__setup("TOMOYO_QUIET", TOMOYO_Quiet_Setup); |
/** |
| 135 |
#endif |
* ccs_is_byte_range - Check whether the string isa \ooo style octal value. |
| 136 |
|
* |
| 137 |
|
* @str: Pointer to the string. |
| 138 |
|
* |
| 139 |
|
* Returns true if @str is a \ooo style octal value, false otherwise. |
| 140 |
|
*/ |
| 141 |
|
static inline bool ccs_is_byte_range(const char *str) |
| 142 |
|
{ |
| 143 |
|
return *str >= '0' && *str++ <= '3' && |
| 144 |
|
*str >= '0' && *str++ <= '7' && |
| 145 |
|
*str >= '0' && *str <= '7'; |
| 146 |
|
} |
| 147 |
|
|
| 148 |
/* Am I root? */ |
/** |
| 149 |
static int isRoot(void) |
* ccs_is_decimal - Check whether the character is a decimal character. |
| 150 |
|
* |
| 151 |
|
* @c: The character to check. |
| 152 |
|
* |
| 153 |
|
* Returns true if @c is a decimal character, false otherwise. |
| 154 |
|
*/ |
| 155 |
|
static inline bool ccs_is_decimal(const char c) |
| 156 |
{ |
{ |
| 157 |
return !current->uid && !current->euid; |
return c >= '0' && c <= '9'; |
| 158 |
} |
} |
| 159 |
|
|
| 160 |
/* |
/** |
| 161 |
* Format string. |
* ccs_is_hexadecimal - Check whether the character is a hexadecimal character. |
| 162 |
|
* |
| 163 |
|
* @c: The character to check. |
| 164 |
|
* |
| 165 |
|
* Returns true if @c is a hexadecimal character, false otherwise. |
| 166 |
|
*/ |
| 167 |
|
static inline bool ccs_is_hexadecimal(const char c) |
| 168 |
|
{ |
| 169 |
|
return (c >= '0' && c <= '9') || |
| 170 |
|
(c >= 'A' && c <= 'F') || |
| 171 |
|
(c >= 'a' && c <= 'f'); |
| 172 |
|
} |
| 173 |
|
|
| 174 |
|
/** |
| 175 |
|
* ccs_is_alphabet_char - Check whether the character is an alphabet. |
| 176 |
|
* |
| 177 |
|
* @c: The character to check. |
| 178 |
|
* |
| 179 |
|
* Returns true if @c is an alphabet character, false otherwise. |
| 180 |
|
*/ |
| 181 |
|
static inline bool ccs_is_alphabet_char(const char c) |
| 182 |
|
{ |
| 183 |
|
return (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z'); |
| 184 |
|
} |
| 185 |
|
|
| 186 |
|
/** |
| 187 |
|
* ccs_make_byte - Make byte value from three octal characters. |
| 188 |
|
* |
| 189 |
|
* @c1: The first character. |
| 190 |
|
* @c2: The second character. |
| 191 |
|
* @c3: The third character. |
| 192 |
|
* |
| 193 |
|
* Returns byte value. |
| 194 |
|
*/ |
| 195 |
|
static inline u8 ccs_make_byte(const u8 c1, const u8 c2, const u8 c3) |
| 196 |
|
{ |
| 197 |
|
return ((c1 - '0') << 6) + ((c2 - '0') << 3) + (c3 - '0'); |
| 198 |
|
} |
| 199 |
|
|
| 200 |
|
/** |
| 201 |
|
* ccs_str_starts - Check whether the given string starts with the given keyword. |
| 202 |
|
* |
| 203 |
|
* @src: Pointer to pointer to the string. |
| 204 |
|
* @find: Pointer to the keyword. |
| 205 |
|
* |
| 206 |
|
* Returns true if @src starts with @find, false otherwise. |
| 207 |
|
* |
| 208 |
|
* The @src is updated to point the first character after the @find |
| 209 |
|
* if @src starts with @find. |
| 210 |
|
*/ |
| 211 |
|
bool ccs_str_starts(char **src, const char *find) |
| 212 |
|
{ |
| 213 |
|
const int len = strlen(find); |
| 214 |
|
char *tmp = *src; |
| 215 |
|
if (strncmp(tmp, find, len)) |
| 216 |
|
return false; |
| 217 |
|
tmp += len; |
| 218 |
|
*src = tmp; |
| 219 |
|
return true; |
| 220 |
|
} |
| 221 |
|
|
| 222 |
|
/** |
| 223 |
|
* ccs_normalize_line - Format string. |
| 224 |
|
* |
| 225 |
|
* @buffer: The line to normalize. |
| 226 |
|
* |
| 227 |
* Leading and trailing whitespaces are removed. |
* Leading and trailing whitespaces are removed. |
| 228 |
* Multiple whitespaces are packed into single space. |
* Multiple whitespaces are packed into single space. |
| 229 |
|
* |
| 230 |
|
* Returns nothing. |
| 231 |
*/ |
*/ |
| 232 |
static void NormalizeLine(unsigned char *buffer) |
void ccs_normalize_line(unsigned char *buffer) |
| 233 |
{ |
{ |
| 234 |
unsigned char *sp = buffer, *dp = buffer; |
unsigned char *sp = buffer; |
| 235 |
int first = 1; |
unsigned char *dp = buffer; |
| 236 |
while (*sp && (*sp <= ' ' || *sp >= 127)) sp++; |
bool first = true; |
| 237 |
|
while (*sp && (*sp <= ' ' || *sp >= 127)) |
| 238 |
|
sp++; |
| 239 |
while (*sp) { |
while (*sp) { |
| 240 |
if (!first) *dp++ = ' '; |
if (!first) |
| 241 |
first = 0; |
*dp++ = ' '; |
| 242 |
while (*sp > ' ' && *sp < 127) *dp++ = *sp++; |
first = false; |
| 243 |
while (*sp && (*sp <= ' ' || *sp >= 127)) sp++; |
while (*sp > ' ' && *sp < 127) |
| 244 |
|
*dp++ = *sp++; |
| 245 |
|
while (*sp && (*sp <= ' ' || *sp >= 127)) |
| 246 |
|
sp++; |
| 247 |
} |
} |
| 248 |
*dp = '\0'; |
*dp = '\0'; |
| 249 |
} |
} |
| 250 |
|
|
| 251 |
/* |
/** |
| 252 |
* Check whether the given filename follows the naming rules. |
* ccs_tokenize - Tokenize string. |
| 253 |
* Returns nonzero if follows, zero otherwise. |
* |
| 254 |
|
* @buffer: The line to tokenize. |
| 255 |
|
* @w: Pointer to "char *". |
| 256 |
|
* @size: Sizeof @w . |
| 257 |
|
* |
| 258 |
|
* Returns true on success, false otherwise. |
| 259 |
|
*/ |
| 260 |
|
bool ccs_tokenize(char *buffer, char *w[], size_t size) |
| 261 |
|
{ |
| 262 |
|
int count = size / sizeof(char *); |
| 263 |
|
int i; |
| 264 |
|
for (i = 0; i < count; i++) |
| 265 |
|
w[i] = ""; |
| 266 |
|
for (i = 0; i < count; i++) { |
| 267 |
|
char *cp = strchr(buffer, ' '); |
| 268 |
|
if (cp) |
| 269 |
|
*cp = '\0'; |
| 270 |
|
w[i] = buffer; |
| 271 |
|
if (!cp) |
| 272 |
|
break; |
| 273 |
|
buffer = cp + 1; |
| 274 |
|
} |
| 275 |
|
return i < count || !*buffer; |
| 276 |
|
} |
| 277 |
|
|
| 278 |
|
/** |
| 279 |
|
* ccs_is_correct_path - Validate a pathname. |
| 280 |
|
* @filename: The pathname to check. |
| 281 |
|
* @start_type: Should the pathname start with '/'? |
| 282 |
|
* 1 = must / -1 = must not / 0 = don't care |
| 283 |
|
* @pattern_type: Can the pathname contain a wildcard? |
| 284 |
|
* 1 = must / -1 = must not / 0 = don't care |
| 285 |
|
* @end_type: Should the pathname end with '/'? |
| 286 |
|
* 1 = must / -1 = must not / 0 = don't care |
| 287 |
|
* |
| 288 |
|
* Check whether the given filename follows the naming rules. |
| 289 |
|
* Returns true if @filename follows the naming rules, false otherwise. |
| 290 |
*/ |
*/ |
| 291 |
bool IsCorrectPath(const char *filename, const int start_type, const int pattern_type, const int end_type, const char *function) |
bool ccs_is_correct_path(const char *filename, const s8 start_type, |
| 292 |
|
const s8 pattern_type, const s8 end_type) |
| 293 |
{ |
{ |
| 294 |
int contains_pattern = 0; |
bool contains_pattern = false; |
| 295 |
char c, d, e; |
unsigned char c; |
| 296 |
|
unsigned char d; |
| 297 |
|
unsigned char e; |
| 298 |
const char *original_filename = filename; |
const char *original_filename = filename; |
| 299 |
if (!filename) goto out; |
if (!filename) |
| 300 |
|
goto out; |
| 301 |
c = *filename; |
c = *filename; |
| 302 |
if (start_type == 1) { /* Must start with '/' */ |
if (start_type == 1) { /* Must start with '/' */ |
| 303 |
if (c != '/') goto out; |
if (c != '/') |
| 304 |
|
goto out; |
| 305 |
} else if (start_type == -1) { /* Must not start with '/' */ |
} else if (start_type == -1) { /* Must not start with '/' */ |
| 306 |
if (c == '/') goto out; |
if (c == '/') |
| 307 |
|
goto out; |
| 308 |
} |
} |
| 309 |
if (c) c = * (strchr(filename, '\0') - 1); |
if (c) |
| 310 |
|
c = *(filename + strlen(filename) - 1); |
| 311 |
if (end_type == 1) { /* Must end with '/' */ |
if (end_type == 1) { /* Must end with '/' */ |
| 312 |
if (c != '/') goto out; |
if (c != '/') |
| 313 |
|
goto out; |
| 314 |
} else if (end_type == -1) { /* Must not end with '/' */ |
} else if (end_type == -1) { /* Must not end with '/' */ |
| 315 |
if (c == '/') goto out; |
if (c == '/') |
| 316 |
|
goto out; |
| 317 |
} |
} |
| 318 |
while ((c = *filename++) != '\0') { |
while (1) { |
| 319 |
|
c = *filename++; |
| 320 |
|
if (!c) |
| 321 |
|
break; |
| 322 |
if (c == '\\') { |
if (c == '\\') { |
| 323 |
switch ((c = *filename++)) { |
c = *filename++; |
| 324 |
|
switch (c) { |
| 325 |
case '\\': /* "\\" */ |
case '\\': /* "\\" */ |
| 326 |
continue; |
continue; |
| 327 |
case '$': /* "\$" */ |
case '$': /* "\$" */ |
| 334 |
case 'a': /* "\a" */ |
case 'a': /* "\a" */ |
| 335 |
case 'A': /* "\A" */ |
case 'A': /* "\A" */ |
| 336 |
case '-': /* "\-" */ |
case '-': /* "\-" */ |
| 337 |
if (pattern_type == -1) break; /* Must not contain pattern */ |
if (pattern_type == -1) |
| 338 |
contains_pattern = 1; |
break; /* Must not contain pattern */ |
| 339 |
|
contains_pattern = true; |
| 340 |
continue; |
continue; |
| 341 |
case '0': /* "\ooo" */ |
case '0': /* "\ooo" */ |
| 342 |
case '1': |
case '1': |
| 343 |
case '2': |
case '2': |
| 344 |
case '3': |
case '3': |
| 345 |
if ((d = *filename++) >= '0' && d <= '7' && (e = *filename++) >= '0' && e <= '7') { |
d = *filename++; |
| 346 |
const unsigned char f = |
if (d < '0' || d > '7') |
| 347 |
(((unsigned char) (c - '0')) << 6) + |
break; |
| 348 |
(((unsigned char) (d - '0')) << 3) + |
e = *filename++; |
| 349 |
(((unsigned char) (e - '0'))); |
if (e < '0' || e > '7') |
| 350 |
if (f && (f <= ' ' || f >= 127)) continue; /* pattern is not \000 */ |
break; |
| 351 |
} |
c = ccs_make_byte(c, d, e); |
| 352 |
|
if (c && (c <= ' ' || c >= 127)) |
| 353 |
|
continue; /* pattern is not \000 */ |
| 354 |
} |
} |
| 355 |
goto out; |
goto out; |
| 356 |
} else if (c <= ' ' || c >= 127) { |
} else if (c <= ' ' || c >= 127) { |
| 358 |
} |
} |
| 359 |
} |
} |
| 360 |
if (pattern_type == 1) { /* Must contain pattern */ |
if (pattern_type == 1) { /* Must contain pattern */ |
| 361 |
if (!contains_pattern) goto out; |
if (!contains_pattern) |
| 362 |
|
goto out; |
| 363 |
} |
} |
| 364 |
return 1; |
return true; |
| 365 |
out: |
out: |
| 366 |
printk(KERN_DEBUG "%s: Invalid pathname '%s'\n", function, original_filename); |
printk(KERN_DEBUG "Invalid pathname '%s'\n", original_filename); |
| 367 |
return 0; |
return false; |
| 368 |
} |
} |
| 369 |
|
|
| 370 |
/* |
/** |
| 371 |
* Check whether the given domainname follows the naming rules. |
* ccs_is_correct_domain - Check whether the given domainname follows the naming rules. |
| 372 |
* Returns nonzero if follows, zero otherwise. |
* @domainname: The domainname to check. |
| 373 |
|
* |
| 374 |
|
* Returns true if @domainname follows the naming rules, false otherwise. |
| 375 |
*/ |
*/ |
| 376 |
bool IsCorrectDomain(const unsigned char *domainname, const char *function) |
bool ccs_is_correct_domain(const unsigned char *domainname) |
| 377 |
{ |
{ |
| 378 |
unsigned char c, d, e; |
unsigned char c; |
| 379 |
|
unsigned char d; |
| 380 |
|
unsigned char e; |
| 381 |
const char *org_domainname = domainname; |
const char *org_domainname = domainname; |
| 382 |
if (!domainname || strncmp(domainname, ROOT_NAME, ROOT_NAME_LEN)) goto out; |
if (!domainname || strncmp(domainname, ROOT_NAME, ROOT_NAME_LEN)) |
| 383 |
|
goto out; |
| 384 |
domainname += ROOT_NAME_LEN; |
domainname += ROOT_NAME_LEN; |
| 385 |
if (!*domainname) return 1; |
if (!*domainname) |
| 386 |
|
return true; |
| 387 |
do { |
do { |
| 388 |
if (*domainname++ != ' ') goto out; |
if (*domainname++ != ' ') |
| 389 |
if (*domainname++ != '/') goto out; |
goto out; |
| 390 |
while ((c = *domainname) != '\0' && c != ' ') { |
if (*domainname++ != '/') |
| 391 |
|
goto out; |
| 392 |
|
while (1) { |
| 393 |
|
c = *domainname; |
| 394 |
|
if (!c || c == ' ') |
| 395 |
|
break; |
| 396 |
domainname++; |
domainname++; |
| 397 |
if (c == '\\') { |
if (c == '\\') { |
| 398 |
switch ((c = *domainname++)) { |
c = *domainname++; |
| 399 |
|
switch ((c)) { |
| 400 |
case '\\': /* "\\" */ |
case '\\': /* "\\" */ |
| 401 |
continue; |
continue; |
| 402 |
case '0': /* "\ooo" */ |
case '0': /* "\ooo" */ |
| 403 |
case '1': |
case '1': |
| 404 |
case '2': |
case '2': |
| 405 |
case '3': |
case '3': |
| 406 |
if ((d = *domainname++) >= '0' && d <= '7' && (e = *domainname++) >= '0' && e <= '7') { |
d = *domainname++; |
| 407 |
const unsigned char f = |
if (d < '0' || d > '7') |
| 408 |
(((unsigned char) (c - '0')) << 6) + |
break; |
| 409 |
(((unsigned char) (d - '0')) << 3) + |
e = *domainname++; |
| 410 |
(((unsigned char) (e - '0'))); |
if (e < '0' || e > '7') |
| 411 |
if (f && (f <= ' ' || f >= 127)) continue; /* pattern is not \000 */ |
break; |
| 412 |
} |
c = ccs_make_byte(c, d, e); |
| 413 |
|
if (c && (c <= ' ' || c >= 127)) |
| 414 |
|
/* pattern is not \000 */ |
| 415 |
|
continue; |
| 416 |
} |
} |
| 417 |
goto out; |
goto out; |
| 418 |
} else if (c < ' ' || c >= 127) { |
} else if (c < ' ' || c >= 127) { |
| 420 |
} |
} |
| 421 |
} |
} |
| 422 |
} while (*domainname); |
} while (*domainname); |
| 423 |
return 1; |
return true; |
| 424 |
out: |
out: |
| 425 |
printk(KERN_DEBUG "%s: Invalid domainname '%s'\n", function, org_domainname); |
printk(KERN_DEBUG "Invalid domainname '%s'\n", org_domainname); |
| 426 |
return 0; |
return false; |
| 427 |
} |
} |
| 428 |
|
|
| 429 |
bool IsDomainDef(const unsigned char *buffer) |
/** |
| 430 |
|
* ccs_is_domain_def - Check whether the given token can be a domainname. |
| 431 |
|
* |
| 432 |
|
* @buffer: The token to check. |
| 433 |
|
* |
| 434 |
|
* Returns true if @buffer possibly be a domainname, false otherwise. |
| 435 |
|
*/ |
| 436 |
|
bool ccs_is_domain_def(const unsigned char *buffer) |
| 437 |
{ |
{ |
| 438 |
/* while (*buffer && (*buffer <= ' ' || *buffer >= 127)) buffer++; */ |
return !strncmp(buffer, ROOT_NAME, ROOT_NAME_LEN); |
|
return strncmp(buffer, ROOT_NAME, ROOT_NAME_LEN) == 0; |
|
| 439 |
} |
} |
| 440 |
|
|
| 441 |
struct domain_info *FindDomain(const char *domainname0) |
/** |
| 442 |
|
* ccs_find_domain - Find a domain by the given name. |
| 443 |
|
* |
| 444 |
|
* @domainname: The domainname to find. |
| 445 |
|
* |
| 446 |
|
* Returns pointer to "struct ccs_domain_info" if found, NULL otherwise. |
| 447 |
|
* |
| 448 |
|
* Caller holds ccs_read_lock(). |
| 449 |
|
*/ |
| 450 |
|
struct ccs_domain_info *ccs_find_domain(const char *domainname) |
| 451 |
{ |
{ |
| 452 |
struct domain_info *domain; |
struct ccs_domain_info *domain; |
| 453 |
struct path_info domainname; |
struct ccs_path_info name; |
| 454 |
domainname.name = domainname0; |
ccs_assert_read_lock(); |
| 455 |
fill_path_info(&domainname); |
name.name = domainname; |
| 456 |
list1_for_each_entry(domain, &domain_list, list) { |
ccs_fill_path_info(&name); |
| 457 |
if (!domain->is_deleted && !pathcmp(&domainname, domain->domainname)) return domain; |
list_for_each_entry_rcu(domain, &ccs_domain_list, list) { |
| 458 |
|
if (!domain->is_deleted && |
| 459 |
|
!ccs_pathcmp(&name, domain->domainname)) |
| 460 |
|
return domain; |
| 461 |
} |
} |
| 462 |
return NULL; |
return NULL; |
| 463 |
} |
} |
| 464 |
|
|
| 465 |
static int PathDepth(const char *pathname) |
/** |
| 466 |
|
* ccs_path_depth - Evaluate the number of '/' in a string. |
| 467 |
|
* |
| 468 |
|
* @pathname: The string to evaluate. |
| 469 |
|
* |
| 470 |
|
* Returns path depth of the string. |
| 471 |
|
* |
| 472 |
|
* I score 2 for each of the '/' in the @pathname |
| 473 |
|
* and score 1 if the @pathname ends with '/'. |
| 474 |
|
*/ |
| 475 |
|
static int ccs_path_depth(const char *pathname) |
| 476 |
{ |
{ |
| 477 |
int i = 0; |
int i = 0; |
| 478 |
if (pathname) { |
if (pathname) { |
| 479 |
char *ep = strchr(pathname, '\0'); |
const char *ep = pathname + strlen(pathname); |
| 480 |
if (pathname < ep--) { |
if (pathname < ep--) { |
| 481 |
if (*ep != '/') i++; |
if (*ep != '/') |
| 482 |
while (pathname <= ep) if (*ep-- == '/') i += 2; |
i++; |
| 483 |
|
while (pathname <= ep) |
| 484 |
|
if (*ep-- == '/') |
| 485 |
|
i += 2; |
| 486 |
} |
} |
| 487 |
} |
} |
| 488 |
return i; |
return i; |
| 489 |
} |
} |
| 490 |
|
|
| 491 |
static int const_part_length(const char *filename) |
/** |
| 492 |
|
* ccs_const_part_length - Evaluate the initial length without a pattern in a token. |
| 493 |
|
* |
| 494 |
|
* @filename: The string to evaluate. |
| 495 |
|
* |
| 496 |
|
* Returns the initial length without a pattern in @filename. |
| 497 |
|
*/ |
| 498 |
|
static int ccs_const_part_length(const char *filename) |
| 499 |
{ |
{ |
| 500 |
|
char c; |
| 501 |
int len = 0; |
int len = 0; |
| 502 |
if (filename) { |
if (!filename) |
| 503 |
char c; |
return 0; |
| 504 |
while ((c = *filename++) != '\0') { |
while (1) { |
| 505 |
if (c != '\\') { len++; continue; } |
c = *filename++; |
| 506 |
switch (c = *filename++) { |
if (!c) |
|
case '\\': /* "\\" */ |
|
|
len += 2; continue; |
|
|
case '0': /* "\ooo" */ |
|
|
case '1': |
|
|
case '2': |
|
|
case '3': |
|
|
if ((c = *filename++) >= '0' && c <= '7' && (c = *filename++) >= '0' && c <= '7') { len += 4; continue; } |
|
|
} |
|
| 507 |
break; |
break; |
| 508 |
|
if (c != '\\') { |
| 509 |
|
len++; |
| 510 |
|
continue; |
| 511 |
|
} |
| 512 |
|
c = *filename++; |
| 513 |
|
switch (c) { |
| 514 |
|
case '\\': /* "\\" */ |
| 515 |
|
len += 2; |
| 516 |
|
continue; |
| 517 |
|
case '0': /* "\ooo" */ |
| 518 |
|
case '1': |
| 519 |
|
case '2': |
| 520 |
|
case '3': |
| 521 |
|
c = *filename++; |
| 522 |
|
if (c < '0' || c > '7') |
| 523 |
|
break; |
| 524 |
|
c = *filename++; |
| 525 |
|
if (c < '0' || c > '7') |
| 526 |
|
break; |
| 527 |
|
len += 4; |
| 528 |
|
continue; |
| 529 |
} |
} |
| 530 |
|
break; |
| 531 |
} |
} |
| 532 |
return len; |
return len; |
| 533 |
} |
} |
| 534 |
|
|
| 535 |
void fill_path_info(struct path_info *ptr) |
/** |
| 536 |
|
* ccs_fill_path_info - Fill in "struct ccs_path_info" members. |
| 537 |
|
* |
| 538 |
|
* @ptr: Pointer to "struct ccs_path_info" to fill in. |
| 539 |
|
* |
| 540 |
|
* The caller sets "struct ccs_path_info"->name. |
| 541 |
|
*/ |
| 542 |
|
void ccs_fill_path_info(struct ccs_path_info *ptr) |
| 543 |
{ |
{ |
| 544 |
const char *name = ptr->name; |
const char *name = ptr->name; |
| 545 |
const int len = strlen(name); |
const int len = strlen(name); |
| 546 |
ptr->total_len = len; |
ptr->total_len = len; |
| 547 |
ptr->const_len = const_part_length(name); |
ptr->const_len = ccs_const_part_length(name); |
| 548 |
ptr->is_dir = len && (name[len - 1] == '/'); |
ptr->is_dir = len && (name[len - 1] == '/'); |
| 549 |
ptr->is_patterned = (ptr->const_len < len); |
ptr->is_patterned = (ptr->const_len < len); |
| 550 |
ptr->hash = full_name_hash(name, len); |
ptr->hash = full_name_hash(name, len); |
| 551 |
ptr->depth = PathDepth(name); |
ptr->depth = ccs_path_depth(name); |
| 552 |
} |
} |
| 553 |
|
|
| 554 |
static int FileMatchesToPattern2(const char *filename, const char *filename_end, const char *pattern, const char *pattern_end) |
/** |
| 555 |
|
* ccs_file_matches_pattern2 - Pattern matching without '/' character |
| 556 |
|
* and "\-" pattern. |
| 557 |
|
* |
| 558 |
|
* @filename: The start of string to check. |
| 559 |
|
* @filename_end: The end of string to check. |
| 560 |
|
* @pattern: The start of pattern to compare. |
| 561 |
|
* @pattern_end: The end of pattern to compare. |
| 562 |
|
* |
| 563 |
|
* Returns true if @filename matches @pattern, false otherwise. |
| 564 |
|
*/ |
| 565 |
|
static bool ccs_file_matches_pattern2(const char *filename, |
| 566 |
|
const char *filename_end, |
| 567 |
|
const char *pattern, |
| 568 |
|
const char *pattern_end) |
| 569 |
{ |
{ |
| 570 |
while (filename < filename_end && pattern < pattern_end) { |
while (filename < filename_end && pattern < pattern_end) { |
| 571 |
|
char c; |
| 572 |
if (*pattern != '\\') { |
if (*pattern != '\\') { |
| 573 |
if (*filename++ != *pattern++) return 0; |
if (*filename++ != *pattern++) |
| 574 |
} else { |
return false; |
| 575 |
char c = *filename; |
continue; |
| 576 |
pattern++; |
} |
| 577 |
switch (*pattern) { |
c = *filename; |
| 578 |
case '?': |
pattern++; |
| 579 |
if (c == '/') { |
switch (*pattern) { |
| 580 |
return 0; |
int i; |
| 581 |
} else if (c == '\\') { |
int j; |
| 582 |
if ((c = filename[1]) == '\\') { |
case '?': |
| 583 |
filename++; /* safe because filename is \\ */ |
if (c == '/') { |
| 584 |
} else if (c >= '0' && c <= '3' && (c = filename[2]) >= '0' && c <= '7' && (c = filename[3]) >= '0' && c <= '7') { |
return false; |
| 585 |
filename += 3; /* safe because filename is \ooo */ |
} else if (c == '\\') { |
| 586 |
} else { |
if (filename[1] == '\\') |
| 587 |
return 0; |
filename++; |
| 588 |
} |
else if (ccs_is_byte_range(filename + 1)) |
| 589 |
} |
filename += 3; |
| 590 |
break; |
else |
| 591 |
case '\\': |
return false; |
| 592 |
if (c != '\\') return 0; |
} |
| 593 |
if (*++filename != '\\') return 0; /* safe because *filename != '\0' */ |
break; |
| 594 |
break; |
case '\\': |
| 595 |
case '+': |
if (c != '\\') |
| 596 |
if (c < '0' || c > '9') return 0; |
return false; |
| 597 |
break; |
if (*++filename != '\\') |
| 598 |
case 'x': |
return false; |
| 599 |
if (!((c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f'))) return 0; |
break; |
| 600 |
break; |
case '+': |
| 601 |
case 'a': |
if (!ccs_is_decimal(c)) |
| 602 |
if (!((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z'))) return 0; |
return false; |
| 603 |
|
break; |
| 604 |
|
case 'x': |
| 605 |
|
if (!ccs_is_hexadecimal(c)) |
| 606 |
|
return false; |
| 607 |
|
break; |
| 608 |
|
case 'a': |
| 609 |
|
if (!ccs_is_alphabet_char(c)) |
| 610 |
|
return false; |
| 611 |
|
break; |
| 612 |
|
case '0': |
| 613 |
|
case '1': |
| 614 |
|
case '2': |
| 615 |
|
case '3': |
| 616 |
|
if (c == '\\' && ccs_is_byte_range(filename + 1) |
| 617 |
|
&& strncmp(filename + 1, pattern, 3) == 0) { |
| 618 |
|
filename += 3; |
| 619 |
|
pattern += 2; |
| 620 |
break; |
break; |
| 621 |
case '0': |
} |
| 622 |
case '1': |
return false; /* Not matched. */ |
| 623 |
case '2': |
case '*': |
| 624 |
case '3': |
case '@': |
| 625 |
if (c == '\\' && (c = filename[1]) >= '0' && c <= '3' && c == *pattern |
for (i = 0; i <= filename_end - filename; i++) { |
| 626 |
&& (c = filename[2]) >= '0' && c <= '7' && c == pattern[1] |
if (ccs_file_matches_pattern2(filename + i, |
| 627 |
&& (c = filename[3]) >= '0' && c <= '7' && c == pattern[2]) { |
filename_end, |
| 628 |
filename += 3; /* safe because filename is \ooo */ |
pattern + 1, |
| 629 |
pattern += 2; /* safe because pattern is \ooo */ |
pattern_end)) |
| 630 |
|
return true; |
| 631 |
|
c = filename[i]; |
| 632 |
|
if (c == '.' && *pattern == '@') |
| 633 |
break; |
break; |
| 634 |
} |
if (c != '\\') |
| 635 |
return 0; /* Not matched. */ |
continue; |
| 636 |
case '*': |
if (filename[i + 1] == '\\') |
| 637 |
case '@': |
i++; |
| 638 |
{ |
else if (ccs_is_byte_range(filename + i + 1)) |
| 639 |
int i; |
i += 3; |
| 640 |
for (i = 0; i <= filename_end - filename; i++) { |
else |
| 641 |
if (FileMatchesToPattern2(filename + i, filename_end, pattern + 1, pattern_end)) return 1; |
break; /* Bad pattern. */ |
| 642 |
if ((c = filename[i]) == '.' && *pattern == '@') break; |
} |
| 643 |
if (c == '\\') { |
return false; /* Not matched. */ |
| 644 |
if ((c = filename[i + 1]) == '\\') { |
default: |
| 645 |
i++; /* safe because filename is \\ */ |
j = 0; |
| 646 |
} else if (c >= '0' && c <= '3' && (c = filename[i + 2]) >= '0' && c <= '7' && (c = filename[i + 3]) >= '0' && c <= '7') { |
c = *pattern; |
| 647 |
i += 3; /* safe because filename is \ooo */ |
if (c == '$') { |
| 648 |
} else { |
while (ccs_is_decimal(filename[j])) |
| 649 |
break; /* Bad pattern. */ |
j++; |
| 650 |
} |
} else if (c == 'X') { |
| 651 |
} |
while (ccs_is_hexadecimal(filename[j])) |
| 652 |
} |
j++; |
| 653 |
return 0; /* Not matched. */ |
} else if (c == 'A') { |
| 654 |
} |
while (ccs_is_alphabet_char(filename[j])) |
| 655 |
default: |
j++; |
| 656 |
{ |
} |
| 657 |
int i, j = 0; |
for (i = 1; i <= j; i++) { |
| 658 |
if ((c = *pattern) == '$') { |
if (ccs_file_matches_pattern2(filename + i, |
| 659 |
while ((c = filename[j]) >= '0' && c <= '9') j++; |
filename_end, |
| 660 |
} else if (c == 'X') { |
pattern + 1, |
| 661 |
while (((c = filename[j]) >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f')) j++; |
pattern_end)) |
| 662 |
} else if (c == 'A') { |
return true; |
|
while (((c = filename[j]) >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')) j++; |
|
|
} |
|
|
for (i = 1; i <= j; i++) { |
|
|
if (FileMatchesToPattern2(filename + i, filename_end, pattern + 1, pattern_end)) return 1; |
|
|
} |
|
|
} |
|
|
return 0; /* Not matched or bad pattern. */ |
|
| 663 |
} |
} |
| 664 |
filename++; /* safe because *filename != '\0' */ |
return false; /* Not matched or bad pattern. */ |
|
pattern++; /* safe because *pattern != '\0' */ |
|
| 665 |
} |
} |
| 666 |
|
filename++; |
| 667 |
|
pattern++; |
| 668 |
} |
} |
| 669 |
while (*pattern == '\\' && (*(pattern + 1) == '*' || *(pattern + 1) == '@')) pattern += 2; |
while (*pattern == '\\' && |
| 670 |
return (filename == filename_end && pattern == pattern_end); |
(*(pattern + 1) == '*' || *(pattern + 1) == '@')) |
| 671 |
|
pattern += 2; |
| 672 |
|
return filename == filename_end && pattern == pattern_end; |
| 673 |
} |
} |
| 674 |
|
|
| 675 |
static int FileMatchesToPattern(const char *filename, const char *filename_end, const char *pattern, const char *pattern_end) |
/** |
| 676 |
|
* ccs_file_matches_pattern - Pattern matching without without '/' character. |
| 677 |
|
* |
| 678 |
|
* @filename: The start of string to check. |
| 679 |
|
* @filename_end: The end of string to check. |
| 680 |
|
* @pattern: The start of pattern to compare. |
| 681 |
|
* @pattern_end: The end of pattern to compare. |
| 682 |
|
* |
| 683 |
|
* Returns true if @filename matches @pattern, false otherwise. |
| 684 |
|
*/ |
| 685 |
|
static bool ccs_file_matches_pattern(const char *filename, |
| 686 |
|
const char *filename_end, |
| 687 |
|
const char *pattern, |
| 688 |
|
const char *pattern_end) |
| 689 |
{ |
{ |
| 690 |
const char *pattern_start = pattern; |
const char *pattern_start = pattern; |
| 691 |
int first = 1; |
bool first = true; |
| 692 |
int result; |
bool result; |
| 693 |
while (pattern < pattern_end - 1) { |
while (pattern < pattern_end - 1) { |
| 694 |
if (*pattern++ != '\\' || *pattern++ != '-') continue; |
/* Split at "\-" pattern. */ |
| 695 |
result = FileMatchesToPattern2(filename, filename_end, pattern_start, pattern - 2); |
if (*pattern++ != '\\' || *pattern++ != '-') |
| 696 |
if (first) result = !result; |
continue; |
| 697 |
if (result) return 0; |
result = ccs_file_matches_pattern2(filename, filename_end, |
| 698 |
first = 0; |
pattern_start, pattern - 2); |
| 699 |
|
if (first) |
| 700 |
|
result = !result; |
| 701 |
|
if (result) |
| 702 |
|
return false; |
| 703 |
|
first = false; |
| 704 |
pattern_start = pattern; |
pattern_start = pattern; |
| 705 |
} |
} |
| 706 |
result = FileMatchesToPattern2(filename, filename_end, pattern_start, pattern_end); |
result = ccs_file_matches_pattern2(filename, filename_end, |
| 707 |
|
pattern_start, pattern_end); |
| 708 |
return first ? result : !result; |
return first ? result : !result; |
| 709 |
} |
} |
| 710 |
|
|
| 711 |
/* |
/** |
| 712 |
* Check whether the given pathname matches to the given pattern. |
* ccs_path_matches_pattern - Check whether the given filename matches the given pattern. |
| 713 |
* Returns nonzero if matches, zero otherwise. |
* @filename: The filename to check. |
| 714 |
|
* @pattern: The pattern to compare. |
| 715 |
* |
* |
| 716 |
* The following patterns are available. |
* Returns true if matches, false otherwise. |
| 717 |
* \\ \ itself. |
* |
| 718 |
* \ooo Octal representation of a byte. |
* The following patterns are available. |
| 719 |
* \* More than or equals to 0 character other than '/'. |
* \\ \ itself. |
| 720 |
* \@ More than or equals to 0 character other than '/' or '.'. |
* \ooo Octal representation of a byte. |
| 721 |
* \? 1 byte character other than '/'. |
* \* More than or equals to 0 character other than '/'. |
| 722 |
* \$ More than or equals to 1 decimal digit. |
* \@ More than or equals to 0 character other than '/' or '.'. |
| 723 |
* \+ 1 decimal digit. |
* \? 1 byte character other than '/'. |
| 724 |
* \X More than or equals to 1 hexadecimal digit. |
* \$ More than or equals to 1 decimal digit. |
| 725 |
* \x 1 hexadecimal digit. |
* \+ 1 decimal digit. |
| 726 |
* \A More than or equals to 1 alphabet character. |
* \X More than or equals to 1 hexadecimal digit. |
| 727 |
* \a 1 alphabet character. |
* \x 1 hexadecimal digit. |
| 728 |
* \- Subtraction operator. |
* \A More than or equals to 1 alphabet character. |
| 729 |
*/ |
* \a 1 alphabet character. |
| 730 |
|
* \- Subtraction operator. |
| 731 |
int PathMatchesToPattern(const struct path_info *pathname0, const struct path_info *pattern0) |
*/ |
| 732 |
{ |
bool ccs_path_matches_pattern(const struct ccs_path_info *filename, |
| 733 |
/* if (!pathname || !pattern) return 0; */ |
const struct ccs_path_info *pattern) |
| 734 |
const char *pathname = pathname0->name, *pattern = pattern0->name; |
{ |
| 735 |
const int len = pattern0->const_len; |
/* |
| 736 |
if (!pattern0->is_patterned) return !pathcmp(pathname0, pattern0); |
if (!filename || !pattern) |
| 737 |
if (pathname0->depth != pattern0->depth) return 0; |
return false; |
| 738 |
if (strncmp(pathname, pattern, len)) return 0; |
*/ |
| 739 |
pathname += len; pattern += len; |
const char *f = filename->name; |
| 740 |
while (*pathname && *pattern) { |
const char *p = pattern->name; |
| 741 |
const char *pathname_delimiter = strchr(pathname, '/'), *pattern_delimiter = strchr(pattern, '/'); |
const int len = pattern->const_len; |
| 742 |
if (!pathname_delimiter) pathname_delimiter = strchr(pathname, '\0'); |
/* If @pattern doesn't contain pattern, I can use strcmp(). */ |
| 743 |
if (!pattern_delimiter) pattern_delimiter = strchr(pattern, '\0'); |
if (!pattern->is_patterned) |
| 744 |
if (!FileMatchesToPattern(pathname, pathname_delimiter, pattern, pattern_delimiter)) return 0; |
return !ccs_pathcmp(filename, pattern); |
| 745 |
pathname = *pathname_delimiter ? pathname_delimiter + 1 : pathname_delimiter; |
/* Don't compare if the number of '/' differs. */ |
| 746 |
pattern = *pattern_delimiter ? pattern_delimiter + 1 : pattern_delimiter; |
if (filename->depth != pattern->depth) |
| 747 |
} |
return false; |
| 748 |
while (*pattern == '\\' && (*(pattern + 1) == '*' || *(pattern + 1) == '@')) pattern += 2; |
/* Compare the initial length without patterns. */ |
| 749 |
return (!*pathname && !*pattern); |
if (strncmp(f, p, len)) |
| 750 |
} |
return false; |
| 751 |
|
f += len; |
| 752 |
/* |
p += len; |
| 753 |
* Transactional printf() to struct io_buffer structure. |
/* Main loop. Compare each directory component. */ |
| 754 |
* snprintf() will truncate, but io_printf() won't. |
while (*f && *p) { |
| 755 |
* Returns zero on success, nonzero otherwise. |
const char *f_delimiter = strchr(f, '/'); |
| 756 |
*/ |
const char *p_delimiter = strchr(p, '/'); |
| 757 |
int io_printf(struct io_buffer *head, const char *fmt, ...) |
if (!f_delimiter) |
| 758 |
{ |
f_delimiter = f + strlen(f); |
| 759 |
va_list args; |
if (!p_delimiter) |
| 760 |
int len, pos = head->read_avail, size = head->readbuf_size - pos; |
p_delimiter = p + strlen(p); |
| 761 |
if (size <= 0) return -ENOMEM; |
if (!ccs_file_matches_pattern(f, f_delimiter, p, p_delimiter)) |
| 762 |
va_start(args, fmt); |
return false; |
| 763 |
len = vsnprintf(head->read_buf + pos, size, fmt, args); |
f = f_delimiter; |
| 764 |
va_end(args); |
if (*f) |
| 765 |
if (pos + len >= head->readbuf_size) return -ENOMEM; |
f++; |
| 766 |
head->read_avail += len; |
p = p_delimiter; |
| 767 |
return 0; |
if (*p) |
| 768 |
|
p++; |
| 769 |
|
} |
| 770 |
|
/* Ignore trailing "\*" and "\@" in @pattern. */ |
| 771 |
|
while (*p == '\\' && |
| 772 |
|
(*(p + 1) == '*' || *(p + 1) == '@')) |
| 773 |
|
p += 2; |
| 774 |
|
return !*f && !*p; |
| 775 |
} |
} |
| 776 |
|
|
| 777 |
/* |
/** |
| 778 |
* Get realpath() of current process. |
* ccs_get_exe - Get ccs_realpath() of current process. |
| 779 |
* This function uses ccs_alloc(), so caller must ccs_free() if this function didn't return NULL. |
* |
| 780 |
|
* Returns the ccs_realpath() of current process on success, NULL otherwise. |
| 781 |
|
* |
| 782 |
|
* This function uses kzalloc(), so the caller must kfree() |
| 783 |
|
* if this function didn't return NULL. |
| 784 |
*/ |
*/ |
| 785 |
const char *GetEXE(void) |
const char *ccs_get_exe(void) |
| 786 |
{ |
{ |
| 787 |
struct mm_struct *mm = current->mm; |
struct mm_struct *mm = current->mm; |
| 788 |
struct vm_area_struct *vma; |
struct vm_area_struct *vma; |
| 789 |
const char *cp = NULL; |
const char *cp = NULL; |
| 790 |
if (!mm) return NULL; |
if (!mm) |
| 791 |
|
return NULL; |
| 792 |
down_read(&mm->mmap_sem); |
down_read(&mm->mmap_sem); |
| 793 |
for (vma = mm->mmap; vma; vma = vma->vm_next) { |
for (vma = mm->mmap; vma; vma = vma->vm_next) { |
| 794 |
if ((vma->vm_flags & VM_EXECUTABLE) && vma->vm_file) { |
if ((vma->vm_flags & VM_EXECUTABLE) && vma->vm_file) { |
| 795 |
cp = realpath_from_dentry(vma->vm_file->f_dentry, vma->vm_file->f_vfsmnt); |
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20) |
| 796 |
|
struct path path = { vma->vm_file->f_vfsmnt, |
| 797 |
|
vma->vm_file->f_dentry }; |
| 798 |
|
cp = ccs_realpath_from_path(&path); |
| 799 |
|
#else |
| 800 |
|
cp = ccs_realpath_from_path(&vma->vm_file->f_path); |
| 801 |
|
#endif |
| 802 |
break; |
break; |
| 803 |
} |
} |
| 804 |
} |
} |
| 806 |
return cp; |
return cp; |
| 807 |
} |
} |
| 808 |
|
|
| 809 |
const char *GetMSG(const bool is_enforce) |
/** |
| 810 |
{ |
* ccs_get_msg - Get warning message. |
| 811 |
if (is_enforce) return "ERROR"; else return "WARNING"; |
* |
| 812 |
} |
* @is_enforce: Is it enforcing mode? |
| 813 |
|
* |
| 814 |
const char *GetAltExec(void) |
* Returns "ERROR" or "WARNING". |
| 815 |
{ |
*/ |
| 816 |
const u8 profile = current->domain_info->profile; |
const char *ccs_get_msg(const bool is_enforce) |
|
const struct path_info *alt_exec = profile_ptr[profile] ? profile_ptr[profile]->alt_exec : NULL; |
|
|
return alt_exec ? alt_exec->name : NULL; |
|
|
} |
|
|
|
|
|
/************************* DOMAIN POLICY HANDLER *************************/ |
|
|
|
|
|
/* Check whether the given access control is enabled. */ |
|
|
unsigned int CheckCCSFlags(const unsigned int index) |
|
|
{ |
|
|
const u8 profile = current->domain_info->profile; |
|
|
return sbin_init_started && index < CCS_MAX_CONTROL_INDEX |
|
|
#if MAX_PROFILES != 256 |
|
|
&& profile < MAX_PROFILES |
|
|
#endif |
|
|
&& profile_ptr[profile] ? profile_ptr[profile]->value[index] : 0; |
|
|
} |
|
|
EXPORT_SYMBOL(CheckCCSFlags); |
|
|
|
|
|
bool TomoyoVerboseMode(void) |
|
|
{ |
|
|
return CheckCCSFlags(CCS_TOMOYO_VERBOSE) != 0; |
|
|
} |
|
|
|
|
|
/* Check whether the given access control is enforce mode. */ |
|
|
bool CheckCCSEnforce(const unsigned int index) |
|
|
{ |
|
|
return CheckCCSFlags(index) == 3; |
|
|
} |
|
|
EXPORT_SYMBOL(CheckCCSEnforce); |
|
|
|
|
|
bool CheckDomainQuota(struct domain_info * const domain) |
|
|
{ |
|
|
unsigned int count = 0; |
|
|
struct acl_info *ptr; |
|
|
if (!domain) return 1; |
|
|
list1_for_each_entry(ptr, &domain->acl_info_list, list) { |
|
|
if (!ptr->is_deleted) count++; |
|
|
} |
|
|
if (count < CheckCCSFlags(CCS_TOMOYO_MAX_ACCEPT_ENTRY)) return 1; |
|
|
if (!domain->quota_warned) { |
|
|
domain->quota_warned = 1; |
|
|
printk("TOMOYO-WARNING: Domain '%s' has so many ACLs to hold. Stopped learning mode.\n", domain->domainname->name); |
|
|
} |
|
|
return 0; |
|
|
} |
|
|
|
|
|
/* Check whether the given access control is learning mode. */ |
|
|
bool CheckCCSAccept(const unsigned int index, struct domain_info * const domain) |
|
| 817 |
{ |
{ |
| 818 |
if (CheckCCSFlags(index) != 1) return 0; |
if (is_enforce) |
| 819 |
return CheckDomainQuota(domain); |
return "ERROR"; |
| 820 |
|
else |
| 821 |
|
return "WARNING"; |
| 822 |
} |
} |
|
EXPORT_SYMBOL(CheckCCSAccept); |
|
| 823 |
|
|
| 824 |
static struct profile *FindOrAssignNewProfile(const unsigned int profile) |
/** |
| 825 |
{ |
* ccs_can_sleep - Check whether it is permitted to do operations that may sleep. |
| 826 |
static DEFINE_MUTEX(profile_lock); |
* |
| 827 |
struct profile *ptr = NULL; |
* Returns true if it is permitted to do operations that may sleep, |
| 828 |
mutex_lock(&profile_lock); |
* false otherwise. |
| 829 |
if (profile < MAX_PROFILES && (ptr = profile_ptr[profile]) == NULL) { |
* |
| 830 |
if ((ptr = alloc_element(sizeof(*ptr))) != NULL) { |
* TOMOYO Linux supports interactive enforcement that lets processes |
| 831 |
int i; |
* wait for the administrator's decision. |
| 832 |
for (i = 0; i < CCS_MAX_CONTROL_INDEX; i++) ptr->value[i] = ccs_control_array[i].current_value; |
* All hooks but the one for ccs_may_autobind() are inserted where |
| 833 |
mb(); /* Avoid out-of-order execution. */ |
* it is permitted to do operations that may sleep. |
| 834 |
profile_ptr[profile] = ptr; |
* Thus, this warning should not happen. |
| 835 |
} |
*/ |
| 836 |
} |
bool ccs_can_sleep(void) |
|
mutex_unlock(&profile_lock); |
|
|
return ptr; |
|
|
} |
|
|
|
|
|
/* #define ALT_EXEC */ |
|
|
|
|
|
static int SetProfile(struct io_buffer *head) |
|
| 837 |
{ |
{ |
| 838 |
char *data = head->write_buf; |
static u8 count = 20; |
| 839 |
unsigned int i, value; |
if (likely(!in_interrupt())) |
| 840 |
char *cp; |
return true; |
| 841 |
struct profile *profile; |
if (count) { |
| 842 |
if (!isRoot()) return -EPERM; |
count--; |
| 843 |
i = simple_strtoul(data, &cp, 10); |
printk(KERN_ERR "BUG: sleeping function called " |
| 844 |
if (data != cp) { |
"from invalid context.\n"); |
| 845 |
if (*cp != '-') return -EINVAL; |
dump_stack(); |
|
data= cp + 1; |
|
|
} |
|
|
profile = FindOrAssignNewProfile(i); |
|
|
if (!profile) return -EINVAL; |
|
|
cp = strchr(data, '='); |
|
|
if (!cp) return -EINVAL; |
|
|
*cp = '\0'; |
|
|
UpdateCounter(CCS_UPDATES_COUNTER_PROFILE); |
|
|
if (strcmp(data, ccs_control_array[CCS_PROFILE_COMMENT].keyword) == 0) { |
|
|
profile->comment = SaveName(cp + 1); |
|
|
return 0; |
|
|
} |
|
|
#ifdef ALT_EXEC |
|
|
#ifdef CONFIG_TOMOYO |
|
|
if (strcmp(data, ccs_control_array[CCS_TOMOYO_ALT_EXEC].keyword) == 0) { |
|
|
cp++; |
|
|
if (*cp && !IsCorrectPath(cp, 1, -1, -1, __FUNCTION__)) cp = ""; |
|
|
profile->alt_exec = SaveName(cp); |
|
|
return 0; |
|
|
} |
|
|
#endif |
|
|
#endif |
|
|
if (sscanf(cp + 1, "%u", &value) != 1) return -EINVAL; |
|
|
#ifdef CONFIG_TOMOYO |
|
|
if (strncmp(data, KEYWORD_MAC_FOR_CAPABILITY, KEYWORD_MAC_FOR_CAPABILITY_LEN) == 0) { |
|
|
return SetCapabilityStatus(data + KEYWORD_MAC_FOR_CAPABILITY_LEN, value, i); |
|
|
} |
|
|
#endif |
|
|
for (i = 0; i < CCS_MAX_CONTROL_INDEX; i++) { |
|
|
if (strcmp(data, ccs_control_array[i].keyword)) continue; |
|
|
if (value > ccs_control_array[i].max_value) value = ccs_control_array[i].max_value; |
|
|
profile->value[i] = value; |
|
|
return 0; |
|
| 846 |
} |
} |
| 847 |
return -EINVAL; |
return false; |
| 848 |
} |
} |
| 849 |
|
|
| 850 |
static int ReadProfile(struct io_buffer *head) |
/** |
| 851 |
|
* ccs_flags - Check mode for specified functionality. |
| 852 |
|
* |
| 853 |
|
* @domain: Pointer to "struct ccs_domain_info". NULL for ccs_current_domain(). |
| 854 |
|
* @index: The functionality to check mode. |
| 855 |
|
* |
| 856 |
|
* Returns the mode of specified functionality. |
| 857 |
|
*/ |
| 858 |
|
unsigned int ccs_flags(const struct ccs_domain_info *domain, |
| 859 |
|
const u8 index) |
| 860 |
{ |
{ |
| 861 |
if (!head->read_eof) { |
u8 profile; |
| 862 |
if (!isRoot()) return -EPERM; |
if (!domain) |
| 863 |
if (!head->read_var2) { |
domain = ccs_current_domain(); |
| 864 |
int step; |
profile = domain->profile; |
| 865 |
for (step = head->read_step; step < MAX_PROFILES * CCS_MAX_CONTROL_INDEX; step++) { |
return ccs_policy_loaded && index < CCS_MAX_CONTROL_INDEX |
| 866 |
const int i = step / CCS_MAX_CONTROL_INDEX, j = step % CCS_MAX_CONTROL_INDEX; |
#if CCS_MAX_PROFILES != 256 |
| 867 |
const struct profile *profile = profile_ptr[i]; |
&& profile < CCS_MAX_PROFILES |
|
head->read_step = step; |
|
|
if (!profile) continue; |
|
|
switch (j) { |
|
|
case -1: /* Dummy */ |
|
|
#ifndef CONFIG_SAKURA |
|
|
case CCS_SAKURA_DENY_CONCEAL_MOUNT: |
|
|
case CCS_SAKURA_RESTRICT_CHROOT: |
|
|
case CCS_SAKURA_RESTRICT_MOUNT: |
|
|
case CCS_SAKURA_RESTRICT_UNMOUNT: |
|
|
case CCS_SAKURA_RESTRICT_PIVOT_ROOT: |
|
|
case CCS_SAKURA_RESTRICT_AUTOBIND: |
|
|
#endif |
|
|
#ifndef CONFIG_TOMOYO |
|
|
case CCS_TOMOYO_MAC_FOR_FILE: |
|
|
case CCS_TOMOYO_MAC_FOR_ARGV0: |
|
|
case CCS_TOMOYO_MAC_FOR_ENV: |
|
|
case CCS_TOMOYO_MAC_FOR_NETWORK: |
|
|
case CCS_TOMOYO_MAC_FOR_SIGNAL: |
|
|
case CCS_TOMOYO_MAX_ACCEPT_ENTRY: |
|
|
case CCS_TOMOYO_MAX_GRANT_LOG: |
|
|
case CCS_TOMOYO_MAX_REJECT_LOG: |
|
|
case CCS_TOMOYO_VERBOSE: |
|
| 868 |
#endif |
#endif |
| 869 |
#ifndef ALT_EXEC |
&& ccs_profile_ptr[profile] ? |
| 870 |
case CCS_TOMOYO_ALT_EXEC: |
ccs_profile_ptr[profile]->value[index] : 0; |
|
case CCS_SLEEP_PERIOD: |
|
|
#endif |
|
|
continue; |
|
|
} |
|
|
if (j == CCS_PROFILE_COMMENT) { |
|
|
if (io_printf(head, "%u-%s=%s\n", i, ccs_control_array[CCS_PROFILE_COMMENT].keyword, profile->comment ? profile->comment->name : "")) break; |
|
|
} else if (j == CCS_TOMOYO_ALT_EXEC) { |
|
|
const struct path_info *alt_exec = profile->alt_exec; |
|
|
if (io_printf(head, "%u-%s=%s\n", i, ccs_control_array[CCS_TOMOYO_ALT_EXEC].keyword, alt_exec ? alt_exec->name : "")) break; |
|
|
} else { |
|
|
if (io_printf(head, "%u-%s=%u\n", i, ccs_control_array[j].keyword, profile->value[j])) break; |
|
|
} |
|
|
} |
|
|
if (step == MAX_PROFILES * CCS_MAX_CONTROL_INDEX) { |
|
|
head->read_var2 = (void *) ""; |
|
|
head->read_step = 0; |
|
|
} |
|
|
} |
|
|
if (head->read_var2) { |
|
|
#ifdef CONFIG_TOMOYO |
|
|
if (ReadCapabilityStatus(head) == 0) |
|
|
#endif |
|
|
head->read_eof = 1; |
|
|
} |
|
|
} |
|
|
return 0; |
|
|
} |
|
|
|
|
|
/************************* POLICY MANAGER HANDLER *************************/ |
|
|
|
|
|
struct policy_manager_entry { |
|
|
struct list1_head list; |
|
|
const struct path_info *manager; |
|
|
bool is_domain; |
|
|
bool is_deleted; |
|
|
}; |
|
|
|
|
|
static LIST1_HEAD(policy_manager_list); |
|
|
|
|
|
static int AddManagerEntry(const char *manager, const bool is_delete) |
|
|
{ |
|
|
struct policy_manager_entry *new_entry, *ptr; |
|
|
static DEFINE_MUTEX(lock); |
|
|
const struct path_info *saved_manager; |
|
|
int error = -ENOMEM; |
|
|
bool is_domain = 0; |
|
|
if (!isRoot()) return -EPERM; |
|
|
if (IsDomainDef(manager)) { |
|
|
if (!IsCorrectDomain(manager, __FUNCTION__)) return -EINVAL; |
|
|
is_domain = 1; |
|
|
} else { |
|
|
if (!IsCorrectPath(manager, 1, -1, -1, __FUNCTION__)) return -EINVAL; |
|
|
} |
|
|
if ((saved_manager = SaveName(manager)) == NULL) return -ENOMEM; |
|
|
mutex_lock(&lock); |
|
|
list1_for_each_entry(ptr, &policy_manager_list, list) { |
|
|
if (ptr->manager == saved_manager) { |
|
|
ptr->is_deleted = is_delete; |
|
|
error = 0; |
|
|
goto out; |
|
|
} |
|
|
} |
|
|
if (is_delete) { |
|
|
error = -ENOENT; |
|
|
goto out; |
|
|
} |
|
|
if ((new_entry = alloc_element(sizeof(*new_entry))) == NULL) goto out; |
|
|
new_entry->manager = saved_manager; |
|
|
new_entry->is_domain = is_domain; |
|
|
list1_add_tail_mb(&new_entry->list, &policy_manager_list); |
|
|
error = 0; |
|
|
out: |
|
|
mutex_unlock(&lock); |
|
|
if (!error) UpdateCounter(CCS_UPDATES_COUNTER_MANAGER); |
|
|
return error; |
|
| 871 |
} |
} |
| 872 |
|
|
| 873 |
static int AddManagerPolicy(struct io_buffer *head) |
/** |
| 874 |
|
* ccs_init_request_info - Initialize "struct ccs_request_info" members. |
| 875 |
|
* |
| 876 |
|
* @r: Pointer to "struct ccs_request_info" to initialize. |
| 877 |
|
* @domain: Pointer to "struct ccs_domain_info". NULL for ccs_current_domain(). |
| 878 |
|
* @index: Index number of functionality. |
| 879 |
|
* |
| 880 |
|
* Returns mode. |
| 881 |
|
*/ |
| 882 |
|
int ccs_init_request_info(struct ccs_request_info *r, |
| 883 |
|
struct ccs_domain_info *domain, const u8 index) |
| 884 |
{ |
{ |
| 885 |
const char *data = head->write_buf; |
memset(r, 0, sizeof(*r)); |
| 886 |
bool is_delete = 0; |
if (!domain) |
| 887 |
if (!isRoot()) return -EPERM; |
domain = ccs_current_domain(); |
| 888 |
if (strncmp(data, KEYWORD_DELETE, KEYWORD_DELETE_LEN) == 0) { |
r->domain = domain; |
| 889 |
data += KEYWORD_DELETE_LEN; |
r->profile = domain->profile; |
| 890 |
is_delete = 1; |
r->type = index; |
| 891 |
} |
if (!ccs_policy_loaded || !ccs_profile_ptr[r->profile]) |
| 892 |
return AddManagerEntry(data, is_delete); |
r->mode = 0; |
| 893 |
|
else |
| 894 |
|
r->mode = ccs_profile_ptr[r->profile]->mac_mode[index]; |
| 895 |
|
return r->mode; |
| 896 |
} |
} |
| 897 |
|
|
| 898 |
static int ReadManagerPolicy(struct io_buffer *head) |
/** |
| 899 |
|
* ccs_verbose_mode - Check whether TOMOYO is verbose mode. |
| 900 |
|
* |
| 901 |
|
* @domain: Pointer to "struct ccs_domain_info". NULL for ccs_current_domain(). |
| 902 |
|
* |
| 903 |
|
* Returns true if domain policy violation warning should be printed to |
| 904 |
|
* console. |
| 905 |
|
*/ |
| 906 |
|
bool ccs_verbose_mode(const struct ccs_domain_info *domain) |
| 907 |
{ |
{ |
| 908 |
struct list1_head *pos; |
return ccs_flags(domain, CCS_VERBOSE) != 0; |
|
if (head->read_eof) return 0; |
|
|
if (!isRoot()) return -EPERM; |
|
|
list1_for_each_cookie(pos, head->read_var2, &policy_manager_list) { |
|
|
struct policy_manager_entry *ptr; |
|
|
ptr = list1_entry(pos, struct policy_manager_entry, list); |
|
|
if (ptr->is_deleted) continue; |
|
|
if (io_printf(head, "%s\n", ptr->manager->name)) return 0; |
|
|
} |
|
|
head->read_eof = 1; |
|
|
return 0; |
|
| 909 |
} |
} |
| 910 |
|
|
| 911 |
/* Check whether the current process is a policy manager. */ |
/** |
| 912 |
static int IsPolicyManager(void) |
* ccs_domain_quota_ok - Check for domain's quota. |
| 913 |
|
* |
| 914 |
|
* @r: Pointer to "struct ccs_request_info". |
| 915 |
|
* |
| 916 |
|
* Returns true if the domain is not exceeded quota, false otherwise. |
| 917 |
|
* |
| 918 |
|
* Caller holds ccs_read_lock(). |
| 919 |
|
*/ |
| 920 |
|
bool ccs_domain_quota_ok(struct ccs_request_info *r) |
| 921 |
{ |
{ |
| 922 |
struct policy_manager_entry *ptr; |
unsigned int count = 0; |
| 923 |
const char *exe; |
struct ccs_domain_info *domain = r->domain; |
| 924 |
const struct path_info *domainname = current->domain_info->domainname; |
struct ccs_acl_info *ptr; |
| 925 |
bool found = 0; |
ccs_assert_read_lock(); |
| 926 |
if (!sbin_init_started) return 1; |
if (r->mode != 1) |
| 927 |
list1_for_each_entry(ptr, &policy_manager_list, list) { |
return false; |
| 928 |
if (!ptr->is_deleted && ptr->is_domain && !pathcmp(domainname, ptr->manager)) return 1; |
if (!domain) |
| 929 |
} |
return true; |
| 930 |
if ((exe = GetEXE()) == NULL) return 0; |
list_for_each_entry_rcu(ptr, &domain->acl_info_list, list) { |
| 931 |
list1_for_each_entry(ptr, &policy_manager_list, list) { |
if (ptr->is_deleted) |
| 932 |
if (!ptr->is_deleted && !ptr->is_domain && !strcmp(exe, ptr->manager->name)) { |
continue; |
| 933 |
found = 1; |
switch (ptr->type) { |
| 934 |
|
u16 perm; |
| 935 |
|
u8 i; |
| 936 |
|
case CCS_TYPE_PATH_ACL: |
| 937 |
|
perm = container_of(ptr, struct ccs_path_acl, head)-> |
| 938 |
|
perm; |
| 939 |
|
for (i = 0; i < CCS_MAX_PATH_OPERATION; i++) |
| 940 |
|
if (perm & (1 << i)) |
| 941 |
|
count++; |
| 942 |
|
if (perm & (1 << CCS_TYPE_READ_WRITE)) |
| 943 |
|
count -= 2; |
| 944 |
break; |
break; |
| 945 |
} |
case CCS_TYPE_PATH2_ACL: |
| 946 |
} |
perm = container_of(ptr, struct ccs_path2_acl, |
| 947 |
if (!found) { /* Reduce error messages. */ |
head)->perm; |
| 948 |
static pid_t last_pid = 0; |
for (i = 0; i < CCS_MAX_PATH2_OPERATION; i++) |
| 949 |
const pid_t pid = current->pid; |
if (perm & (1 << i)) |
| 950 |
if (last_pid != pid) { |
count++; |
|
printk("%s ( %s ) is not permitted to update policies.\n", domainname->name, exe); |
|
|
last_pid = pid; |
|
|
} |
|
|
} |
|
|
ccs_free(exe); |
|
|
return found; |
|
|
} |
|
|
|
|
|
#ifdef CONFIG_TOMOYO |
|
|
|
|
|
/************************* DOMAIN POLICY HANDLER *************************/ |
|
|
|
|
|
static char *FindConditionPart(char *data) |
|
|
{ |
|
|
char *cp = strstr(data, " if "), *cp2; |
|
|
if (cp) { |
|
|
while ((cp2 = strstr(cp + 3, " if ")) != NULL) cp = cp2; |
|
|
*cp++ = '\0'; |
|
|
} |
|
|
return cp; |
|
|
} |
|
|
|
|
|
static int AddDomainPolicy(struct io_buffer *head) |
|
|
{ |
|
|
char *data = head->write_buf; |
|
|
struct domain_info *domain = head->write_var1; |
|
|
bool is_delete = 0, is_select = 0, is_undelete = 0; |
|
|
unsigned int profile; |
|
|
const struct condition_list *cond = NULL; |
|
|
char *cp; |
|
|
if (!isRoot()) return -EPERM; |
|
|
if (strncmp(data, KEYWORD_DELETE, KEYWORD_DELETE_LEN) == 0) { |
|
|
data += KEYWORD_DELETE_LEN; |
|
|
is_delete = 1; |
|
|
} else if (strncmp(data, KEYWORD_SELECT, KEYWORD_SELECT_LEN) == 0) { |
|
|
data += KEYWORD_SELECT_LEN; |
|
|
is_select = 1; |
|
|
} else if (strncmp(data, KEYWORD_UNDELETE, KEYWORD_UNDELETE_LEN) == 0) { |
|
|
data += KEYWORD_UNDELETE_LEN; |
|
|
is_undelete = 1; |
|
|
} |
|
|
UpdateCounter(CCS_UPDATES_COUNTER_DOMAIN_POLICY); |
|
|
if (IsDomainDef(data)) { |
|
|
if (is_delete) { |
|
|
DeleteDomain(data); |
|
|
domain = NULL; |
|
|
} else if (is_select) { |
|
|
domain = FindDomain(data); |
|
|
} else if (is_undelete) { |
|
|
domain = UndeleteDomain(data); |
|
|
} else { |
|
|
domain = FindOrAssignNewDomain(data, 0); |
|
|
} |
|
|
head->write_var1 = domain; |
|
|
return 0; |
|
|
} |
|
|
if (!domain) return -EINVAL; |
|
|
|
|
|
if (sscanf(data, KEYWORD_USE_PROFILE "%u", &profile) == 1 && profile < MAX_PROFILES) { |
|
|
if (profile_ptr[profile] || !sbin_init_started) domain->profile = (u8) profile; |
|
|
return 0; |
|
|
} |
|
|
cp = FindConditionPart(data); |
|
|
if (cp && (cond = FindOrAssignNewCondition(cp)) == NULL) return -EINVAL; |
|
|
if (strncmp(data, KEYWORD_ALLOW_CAPABILITY, KEYWORD_ALLOW_CAPABILITY_LEN) == 0) { |
|
|
return AddCapabilityPolicy(data + KEYWORD_ALLOW_CAPABILITY_LEN, domain, cond, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_ALLOW_NETWORK, KEYWORD_ALLOW_NETWORK_LEN) == 0) { |
|
|
return AddNetworkPolicy(data + KEYWORD_ALLOW_NETWORK_LEN, domain, cond, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_ALLOW_SIGNAL, KEYWORD_ALLOW_SIGNAL_LEN) == 0) { |
|
|
return AddSignalPolicy(data + KEYWORD_ALLOW_SIGNAL_LEN, domain, cond, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_ALLOW_ARGV0, KEYWORD_ALLOW_ARGV0_LEN) == 0) { |
|
|
return AddArgv0Policy(data + KEYWORD_ALLOW_ARGV0_LEN, domain, cond, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_ALLOW_ENV, KEYWORD_ALLOW_ENV_LEN) == 0) { |
|
|
return AddEnvPolicy(data + KEYWORD_ALLOW_ENV_LEN, domain, cond, is_delete); |
|
|
} else { |
|
|
return AddFilePolicy(data, domain, cond, is_delete); |
|
|
} |
|
|
return -EINVAL; |
|
|
} |
|
|
|
|
|
static int ReadDomainPolicy(struct io_buffer *head) |
|
|
{ |
|
|
struct list1_head *dpos; |
|
|
struct list1_head *apos; |
|
|
if (head->read_eof) return 0; |
|
|
if (head->read_step == 0) { |
|
|
if (!isRoot()) return -EPERM; |
|
|
head->read_step = 1; |
|
|
} |
|
|
list1_for_each_cookie(dpos, head->read_var1, &domain_list) { |
|
|
struct domain_info *domain; |
|
|
domain = list1_entry(dpos, struct domain_info, list); |
|
|
if (head->read_step != 1) goto acl_loop; |
|
|
if (domain->is_deleted) continue; |
|
|
if (io_printf(head, "%s\n" KEYWORD_USE_PROFILE "%u\n%s\n", domain->domainname->name, domain->profile, domain->quota_warned ? "quota_exceeded\n" : "")) return 0; |
|
|
head->read_step = 2; |
|
|
acl_loop: ; |
|
|
if (head->read_step == 3) goto tail_mark; |
|
|
list1_for_each_cookie(apos, head->read_var2, &domain->acl_info_list) { |
|
|
struct acl_info *ptr; |
|
|
int pos; |
|
|
u8 acl_type; |
|
|
ptr = list1_entry(apos, struct acl_info, list); |
|
|
if (ptr->is_deleted) continue; |
|
|
pos = head->read_avail; |
|
|
acl_type = ptr->type; |
|
|
if (acl_type == TYPE_FILE_ACL) { |
|
|
struct file_acl_record *ptr2 = container_of(ptr, struct file_acl_record, head); |
|
|
const unsigned char b = ptr2->u_is_group; |
|
|
if (io_printf(head, "%d %s%s", ptr2->perm, |
|
|
b ? "@" : "", |
|
|
b ? ptr2->u.group->group_name->name : ptr2->u.filename->name)) goto print_acl_rollback; |
|
|
} else if (acl_type == TYPE_ARGV0_ACL) { |
|
|
struct argv0_acl_record *ptr2 = container_of(ptr, struct argv0_acl_record, head); |
|
|
if (io_printf(head, KEYWORD_ALLOW_ARGV0 "%s %s", |
|
|
ptr2->filename->name, ptr2->argv0->name)) goto print_acl_rollback; |
|
|
} else if (acl_type == TYPE_ENV_ACL) { |
|
|
struct env_acl_record *ptr2 = container_of(ptr, struct env_acl_record, head); |
|
|
if (io_printf(head, KEYWORD_ALLOW_ENV "%s", ptr2->env->name)) goto print_acl_rollback; |
|
|
} else if (acl_type == TYPE_CAPABILITY_ACL) { |
|
|
struct capability_acl_record *ptr2 = container_of(ptr, struct capability_acl_record, head); |
|
|
if (io_printf(head, KEYWORD_ALLOW_CAPABILITY "%s", capability2keyword(ptr2->capability))) goto print_acl_rollback; |
|
|
} else if (acl_type == TYPE_IP_NETWORK_ACL) { |
|
|
struct ip_network_acl_record *ptr2 = container_of(ptr, struct ip_network_acl_record, head); |
|
|
if (io_printf(head, KEYWORD_ALLOW_NETWORK "%s ", network2keyword(ptr2->operation_type))) goto print_acl_rollback; |
|
|
switch (ptr2->record_type) { |
|
|
case IP_RECORD_TYPE_ADDRESS_GROUP: |
|
|
if (io_printf(head, "@%s", ptr2->u.group->group_name->name)) goto print_acl_rollback; |
|
|
break; |
|
|
case IP_RECORD_TYPE_IPv4: |
|
|
{ |
|
|
const u32 min_address = ptr2->u.ipv4.min, max_address = ptr2->u.ipv4.max; |
|
|
if (io_printf(head, "%u.%u.%u.%u", HIPQUAD(min_address))) goto print_acl_rollback; |
|
|
if (min_address != max_address && io_printf(head, "-%u.%u.%u.%u", HIPQUAD(max_address))) goto print_acl_rollback; |
|
|
} |
|
|
break; |
|
|
case IP_RECORD_TYPE_IPv6: |
|
|
{ |
|
|
char buf[64]; |
|
|
const struct in6_addr *min_address = ptr2->u.ipv6.min, *max_address = ptr2->u.ipv6.max; |
|
|
print_ipv6(buf, sizeof(buf), min_address); |
|
|
if (io_printf(head, "%s", buf)) goto print_acl_rollback; |
|
|
if (min_address != max_address) { |
|
|
print_ipv6(buf, sizeof(buf), max_address); |
|
|
if (io_printf(head, "-%s", buf)) goto print_acl_rollback; |
|
|
} |
|
|
} |
|
|
break; |
|
|
} |
|
|
{ |
|
|
const u16 min_port = ptr2->min_port, max_port = ptr2->max_port; |
|
|
if (io_printf(head, " %u", min_port)) goto print_acl_rollback; |
|
|
if (min_port != max_port && io_printf(head, "-%u", max_port)) goto print_acl_rollback; |
|
|
} |
|
|
} else if (acl_type == TYPE_SIGNAL_ACL) { |
|
|
struct signal_acl_record *ptr2 = container_of(ptr, struct signal_acl_record, head); |
|
|
if (io_printf(head, KEYWORD_ALLOW_SIGNAL "%u %s", ptr2->sig, ptr2->domainname->name)) goto print_acl_rollback; |
|
|
} else { |
|
|
const char *keyword = acltype2keyword(acl_type); |
|
|
if (!keyword) continue; |
|
|
if (acltype2paths(acl_type) == 2) { |
|
|
struct double_acl_record *ptr2 = container_of(ptr, struct double_acl_record, head); |
|
|
const bool b0 = ptr2->u1_is_group, b1 = ptr2->u2_is_group; |
|
|
if (io_printf(head, "allow_%s %s%s %s%s", keyword, |
|
|
b0 ? "@" : "", b0 ? ptr2->u1.group1->group_name->name : ptr2->u1.filename1->name, |
|
|
b1 ? "@" : "", b1 ? ptr2->u2.group2->group_name->name : ptr2->u2.filename2->name)) goto print_acl_rollback; |
|
|
} else { |
|
|
struct single_acl_record *ptr2 = container_of(ptr, struct single_acl_record, head); |
|
|
const bool b = ptr2->u_is_group; |
|
|
if (io_printf(head, "allow_%s %s%s", keyword, |
|
|
b ? "@" : "", b ? ptr2->u.group->group_name->name : ptr2->u.filename->name)) goto print_acl_rollback; |
|
|
} |
|
|
} |
|
|
if (DumpCondition(head, ptr->cond)) { |
|
|
print_acl_rollback: ; |
|
|
head->read_avail = pos; |
|
|
return 0; |
|
|
} |
|
|
} |
|
|
head->read_step = 3; |
|
|
tail_mark: ; |
|
|
if (io_printf(head, "\n")) return 0; |
|
|
head->read_step = 1; |
|
|
} |
|
|
head->read_eof = 1; |
|
|
return 0; |
|
|
} |
|
|
|
|
|
#endif |
|
|
|
|
|
static int UpdateDomainProfile(struct io_buffer *head) |
|
|
{ |
|
|
char *data = head->write_buf; |
|
|
char *cp = strchr(data, ' '); |
|
|
struct domain_info *domain; |
|
|
unsigned int profile; |
|
|
if (!isRoot()) return -EPERM; |
|
|
if (!cp) return -EINVAL; |
|
|
*cp = '\0'; |
|
|
domain = FindDomain(cp + 1); |
|
|
profile = simple_strtoul(data, NULL, 10); |
|
|
if (domain && profile < MAX_PROFILES && (profile_ptr[profile] || !sbin_init_started)) domain->profile = (u8) profile; |
|
|
UpdateCounter(CCS_UPDATES_COUNTER_DOMAIN_POLICY); |
|
|
return 0; |
|
|
} |
|
|
|
|
|
static int ReadDomainProfile(struct io_buffer *head) |
|
|
{ |
|
|
struct list1_head *pos; |
|
|
if (head->read_eof) return 0; |
|
|
if (!isRoot()) return -EPERM; |
|
|
list1_for_each_cookie(pos, head->read_var1, &domain_list) { |
|
|
struct domain_info *domain; |
|
|
domain = list1_entry(pos, struct domain_info, list); |
|
|
if (domain->is_deleted) continue; |
|
|
if (io_printf(head, "%u %s\n", domain->profile, domain->domainname->name)) return 0; |
|
|
} |
|
|
head->read_eof = 1; |
|
|
return 0; |
|
|
} |
|
|
|
|
|
static int WritePID(struct io_buffer *head) |
|
|
{ |
|
|
head->read_step = (int) simple_strtoul(head->write_buf, NULL, 10); |
|
|
head->read_eof = 0; |
|
|
return 0; |
|
|
} |
|
|
|
|
|
static int ReadPID(struct io_buffer *head) |
|
|
{ |
|
|
if (head->read_avail == 0 && !head->read_eof) { |
|
|
const int pid = head->read_step; |
|
|
struct task_struct *p; |
|
|
struct domain_info *domain = NULL; |
|
|
/***** CRITICAL SECTION START *****/ |
|
|
read_lock(&tasklist_lock); |
|
|
p = find_task_by_pid(pid); |
|
|
if (p) domain = p->domain_info; |
|
|
read_unlock(&tasklist_lock); |
|
|
/***** CRITICAL SECTION END *****/ |
|
|
if (domain) io_printf(head, "%d %u %s", pid, domain->profile, domain->domainname->name); |
|
|
head->read_eof = 1; |
|
|
} |
|
|
return 0; |
|
|
} |
|
|
|
|
|
/************************* EXCEPTION POLICY HANDLER *************************/ |
|
|
|
|
|
#ifdef CONFIG_TOMOYO |
|
|
|
|
|
static int AddExceptionPolicy(struct io_buffer *head) |
|
|
{ |
|
|
char *data = head->write_buf; |
|
|
bool is_delete = 0; |
|
|
if (!isRoot()) return -EPERM; |
|
|
UpdateCounter(CCS_UPDATES_COUNTER_EXCEPTION_POLICY); |
|
|
if (strncmp(data, KEYWORD_DELETE, KEYWORD_DELETE_LEN) == 0) { |
|
|
data += KEYWORD_DELETE_LEN; |
|
|
is_delete = 1; |
|
|
} |
|
|
if (strncmp(data, KEYWORD_KEEP_DOMAIN, KEYWORD_KEEP_DOMAIN_LEN) == 0) { |
|
|
return AddDomainKeeperPolicy(data + KEYWORD_KEEP_DOMAIN_LEN, 0, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_NO_KEEP_DOMAIN, KEYWORD_NO_KEEP_DOMAIN_LEN) == 0) { |
|
|
return AddDomainKeeperPolicy(data + KEYWORD_NO_KEEP_DOMAIN_LEN, 1, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_INITIALIZE_DOMAIN, KEYWORD_INITIALIZE_DOMAIN_LEN) == 0) { |
|
|
return AddDomainInitializerPolicy(data + KEYWORD_INITIALIZE_DOMAIN_LEN, 0, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_NO_INITIALIZE_DOMAIN, KEYWORD_NO_INITIALIZE_DOMAIN_LEN) == 0) { |
|
|
return AddDomainInitializerPolicy(data + KEYWORD_NO_INITIALIZE_DOMAIN_LEN, 1, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_ALIAS, KEYWORD_ALIAS_LEN) == 0) { |
|
|
return AddAliasPolicy(data + KEYWORD_ALIAS_LEN, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_AGGREGATOR, KEYWORD_AGGREGATOR_LEN) == 0) { |
|
|
return AddAggregatorPolicy(data + KEYWORD_AGGREGATOR_LEN, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_ALLOW_READ, KEYWORD_ALLOW_READ_LEN) == 0) { |
|
|
return AddGloballyReadablePolicy(data + KEYWORD_ALLOW_READ_LEN, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_ALLOW_ENV, KEYWORD_ALLOW_ENV_LEN) == 0) { |
|
|
return AddGloballyUsableEnvPolicy(data + KEYWORD_ALLOW_ENV_LEN, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_FILE_PATTERN, KEYWORD_FILE_PATTERN_LEN) == 0) { |
|
|
return AddPatternPolicy(data + KEYWORD_FILE_PATTERN_LEN, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_PATH_GROUP, KEYWORD_PATH_GROUP_LEN) == 0) { |
|
|
return AddPathGroupPolicy(data + KEYWORD_PATH_GROUP_LEN, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_DENY_REWRITE, KEYWORD_DENY_REWRITE_LEN) == 0) { |
|
|
return AddNoRewritePolicy(data + KEYWORD_DENY_REWRITE_LEN, is_delete); |
|
|
} else if (strncmp(data, KEYWORD_ADDRESS_GROUP, KEYWORD_ADDRESS_GROUP_LEN) == 0) { |
|
|
return AddAddressGroupPolicy(data + KEYWORD_ADDRESS_GROUP_LEN, is_delete); |
|
|
} |
|
|
return -EINVAL; |
|
|
} |
|
|
|
|
|
static int ReadExceptionPolicy(struct io_buffer *head) |
|
|
{ |
|
|
if (!head->read_eof) { |
|
|
switch (head->read_step) { |
|
|
case 0: |
|
|
if (!isRoot()) return -EPERM; |
|
|
head->read_var2 = NULL; head->read_step = 1; |
|
|
case 1: |
|
|
if (ReadDomainKeeperPolicy(head)) break; |
|
|
head->read_var2 = NULL; head->read_step = 2; |
|
|
case 2: |
|
|
if (ReadGloballyReadablePolicy(head)) break; |
|
|
head->read_var2 = NULL; head->read_step = 3; |
|
|
case 3: |
|
|
if (ReadGloballyUsableEnvPolicy(head)) break; |
|
|
head->read_var2 = NULL; head->read_step = 4; |
|
|
case 4: |
|
|
if (ReadDomainInitializerPolicy(head)) break; |
|
|
head->read_var2 = NULL; head->read_step = 5; |
|
|
case 5: |
|
|
if (ReadAliasPolicy(head)) break; |
|
|
head->read_var2 = NULL; head->read_step = 6; |
|
|
case 6: |
|
|
if (ReadAggregatorPolicy(head)) break; |
|
|
head->read_var2 = NULL; head->read_step = 7; |
|
|
case 7: |
|
|
if (ReadPatternPolicy(head)) break; |
|
|
head->read_var2 = NULL; head->read_step = 8; |
|
|
case 8: |
|
|
if (ReadNoRewritePolicy(head)) break; |
|
|
head->read_var2 = NULL; head->read_step = 9; |
|
|
case 9: |
|
|
if (ReadPathGroupPolicy(head)) break; |
|
|
head->read_var1 = head->read_var2 = NULL; head->read_step = 10; |
|
|
case 10: |
|
|
if (ReadAddressGroupPolicy(head)) break; |
|
|
head->read_eof = 1; |
|
| 951 |
break; |
break; |
| 952 |
default: |
case CCS_TYPE_EXECUTE_HANDLER: |
| 953 |
return -EINVAL; |
case CCS_TYPE_DENIED_EXECUTE_HANDLER: |
|
} |
|
|
} |
|
|
return 0; |
|
|
} |
|
|
|
|
|
#endif |
|
|
|
|
|
/************************* SYSTEM POLICY HANDLER *************************/ |
|
|
|
|
|
#ifdef CONFIG_SAKURA |
|
|
|
|
|
static int AddSystemPolicy(struct io_buffer *head) |
|
|
{ |
|
|
char *data = head->write_buf; |
|
|
bool is_delete = 0; |
|
|
if (!isRoot()) return -EPERM; |
|
|
UpdateCounter(CCS_UPDATES_COUNTER_SYSTEM_POLICY); |
|
|
if (strncmp(data, KEYWORD_DELETE, KEYWORD_DELETE_LEN) == 0) { |
|
|
data += KEYWORD_DELETE_LEN; |
|
|
is_delete = 1; |
|
|
} |
|
|
if (strncmp(data, KEYWORD_ALLOW_MOUNT, KEYWORD_ALLOW_MOUNT_LEN) == 0) |
|
|
return AddMountPolicy(data + KEYWORD_ALLOW_MOUNT_LEN, is_delete); |
|
|
if (strncmp(data, KEYWORD_DENY_UNMOUNT, KEYWORD_DENY_UNMOUNT_LEN) == 0) |
|
|
return AddNoUmountPolicy(data + KEYWORD_DENY_UNMOUNT_LEN, is_delete); |
|
|
if (strncmp(data, KEYWORD_ALLOW_CHROOT, KEYWORD_ALLOW_CHROOT_LEN) == 0) |
|
|
return AddChrootPolicy(data + KEYWORD_ALLOW_CHROOT_LEN, is_delete); |
|
|
if (strncmp(data, KEYWORD_ALLOW_PIVOT_ROOT, KEYWORD_ALLOW_PIVOT_ROOT_LEN) == 0) |
|
|
return AddPivotRootPolicy(data + KEYWORD_ALLOW_PIVOT_ROOT_LEN, is_delete); |
|
|
if (strncmp(data, KEYWORD_DENY_AUTOBIND, KEYWORD_DENY_AUTOBIND_LEN) == 0) |
|
|
return AddReservedPortPolicy(data + KEYWORD_DENY_AUTOBIND_LEN, is_delete); |
|
|
return -EINVAL; |
|
|
} |
|
|
|
|
|
static int ReadSystemPolicy(struct io_buffer *head) |
|
|
{ |
|
|
if (!head->read_eof) { |
|
|
switch (head->read_step) { |
|
|
case 0: |
|
|
if (!isRoot()) return -EPERM; |
|
|
head->read_var2 = NULL; head->read_step = 1; |
|
|
case 1: |
|
|
if (ReadMountPolicy(head)) break; |
|
|
head->read_var2 = NULL; head->read_step = 2; |
|
|
case 2: |
|
|
if (ReadNoUmountPolicy(head)) break; |
|
|
head->read_var2 = NULL; head->read_step = 3; |
|
|
case 3: |
|
|
if (ReadChrootPolicy(head)) break; |
|
|
head->read_var2 = NULL; head->read_step = 4; |
|
|
case 4: |
|
|
if (ReadPivotRootPolicy(head)) break; |
|
|
head->read_var2 = NULL; head->read_step = 5; |
|
|
case 5: |
|
|
if (ReadReservedPortPolicy(head)) break; |
|
|
head->read_eof = 1; |
|
| 954 |
break; |
break; |
| 955 |
default: |
case CCS_TYPE_PATH_NUMBER_ACL: |
| 956 |
return -EINVAL; |
perm = container_of(ptr, struct ccs_path_number_acl, |
| 957 |
} |
head)->perm; |
| 958 |
} |
for (i = 0; i < CCS_MAX_PATH_NUMBER_OPERATION; i++) |
| 959 |
return 0; |
if (perm & (1 << i)) |
| 960 |
} |
count++; |
|
|
|
|
#endif |
|
|
|
|
|
/************************* POLICY LOADER *************************/ |
|
|
|
|
|
static int profile_loaded = 0; |
|
|
|
|
|
static const char *ccs_loader = NULL; |
|
|
|
|
|
static int __init CCS_loader_Setup(char *str) |
|
|
{ |
|
|
ccs_loader = str; |
|
|
return 0; |
|
|
} |
|
|
|
|
|
__setup("CCS_loader=", CCS_loader_Setup); |
|
|
|
|
|
void CCS_LoadPolicy(const char *filename) |
|
|
{ |
|
|
if (sbin_init_started) return; |
|
|
/* |
|
|
* Check filename is /sbin/init or /sbin/ccs-start . |
|
|
* /sbin/ccs-start is a dummy filename in case where /sbin/init can't be passed. |
|
|
* You can create /sbin/ccs-start by "ln -s /bin/true /sbin/ccs-start", for |
|
|
* only the pathname is needed to activate Mandatory Access Control. |
|
|
*/ |
|
|
if (strcmp(filename, "/sbin/init") != 0 && strcmp(filename, "/sbin/ccs-start") != 0) return; |
|
|
/* |
|
|
* Don't activate MAC if the path given by 'CCS_loader=' option doesn't exist. |
|
|
* If initrd.img includes /sbin/init but real-root-dev has not mounted on / yet, |
|
|
* activating MAC will block the system since policies are not loaded yet. |
|
|
* So let do_execve() call this function everytime. |
|
|
*/ |
|
|
{ |
|
|
struct nameidata nd; |
|
|
if (!ccs_loader) ccs_loader = "/sbin/ccs-init"; |
|
|
if (path_lookup(ccs_loader, lookup_flags, &nd)) { |
|
|
printk("Not activating Mandatory Access Control now since %s doesn't exist.\n", ccs_loader); |
|
|
return; |
|
|
} |
|
|
path_release(&nd); |
|
|
} |
|
|
if (!profile_loaded) { |
|
|
char *argv[2], *envp[3]; |
|
|
printk("Calling %s to load policy. Please wait.\n", ccs_loader); |
|
|
argv[0] = (char *) ccs_loader; |
|
|
argv[1] = NULL; |
|
|
envp[0] = "HOME=/"; |
|
|
envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin"; |
|
|
envp[2] = NULL; |
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0) |
|
|
call_usermodehelper(argv[0], argv, envp, 1); |
|
|
#else |
|
|
call_usermodehelper(argv[0], argv, envp); |
|
|
#endif |
|
|
while (!profile_loaded) { |
|
|
set_current_state(TASK_INTERRUPTIBLE); |
|
|
schedule_timeout(HZ / 10); |
|
|
} |
|
|
} |
|
|
#ifdef CONFIG_SAKURA |
|
|
printk("SAKURA: 1.5.2-pre 2007/11/29\n"); |
|
|
#endif |
|
|
#ifdef CONFIG_TOMOYO |
|
|
printk("TOMOYO: 1.5.2-pre 2007/11/29\n"); |
|
|
#endif |
|
|
//if (!profile_loaded) panic("No profiles loaded. Run policy loader using 'init=' option.\n"); |
|
|
printk("Mandatory Access Control activated.\n"); |
|
|
sbin_init_started = 1; |
|
|
ccs_log_level = KERN_WARNING; |
|
|
{ /* Check all profiles currently assigned to domains are defined. */ |
|
|
struct domain_info *domain; |
|
|
list1_for_each_entry(domain, &domain_list, list) { |
|
|
const u8 profile = domain->profile; |
|
|
if (!profile_ptr[profile]) panic("Profile %u (used by '%s') not defined.\n", profile, domain->domainname->name); |
|
|
} |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
/************************* MAC Decision Delayer *************************/ |
|
|
|
|
|
static DECLARE_WAIT_QUEUE_HEAD(query_wait); |
|
|
|
|
|
static spinlock_t query_lock = SPIN_LOCK_UNLOCKED; |
|
|
|
|
|
struct query_entry { |
|
|
struct list_head list; |
|
|
char *query; |
|
|
int query_len; |
|
|
unsigned int serial; |
|
|
int timer; |
|
|
int answer; |
|
|
}; |
|
|
|
|
|
static LIST_HEAD(query_list); |
|
|
static atomic_t queryd_watcher = ATOMIC_INIT(0); |
|
|
|
|
|
int CheckSupervisor(const char *fmt, ...) |
|
|
{ |
|
|
va_list args; |
|
|
int error = -EPERM; |
|
|
int pos, len; |
|
|
static unsigned int serial = 0; |
|
|
struct query_entry *query_entry; |
|
|
if (!CheckCCSFlags(CCS_ALLOW_ENFORCE_GRACE) || !atomic_read(&queryd_watcher)) { |
|
|
#ifndef ALT_EXEC |
|
|
if ((current->tomoyo_flags & CCS_DONT_SLEEP_ON_ENFORCE_ERROR) == 0) { |
|
|
int i; |
|
|
for (i = 0; i < CheckCCSFlags(CCS_SLEEP_PERIOD); i++) { |
|
|
set_current_state(TASK_INTERRUPTIBLE); |
|
|
schedule_timeout(HZ / 10); |
|
|
} |
|
|
} |
|
|
#endif |
|
|
return -EPERM; |
|
|
} |
|
|
va_start(args, fmt); |
|
|
len = vsnprintf((char *) &pos, sizeof(pos) - 1, fmt, args) + 32; |
|
|
va_end(args); |
|
|
if ((query_entry = ccs_alloc(sizeof(*query_entry))) == NULL || |
|
|
(query_entry->query = ccs_alloc(len)) == NULL) goto out; |
|
|
INIT_LIST_HEAD(&query_entry->list); |
|
|
/***** CRITICAL SECTION START *****/ |
|
|
spin_lock(&query_lock); |
|
|
query_entry->serial = serial++; |
|
|
spin_unlock(&query_lock); |
|
|
/***** CRITICAL SECTION END *****/ |
|
|
pos = snprintf(query_entry->query, len - 1, "Q%u\n", query_entry->serial); |
|
|
va_start(args, fmt); |
|
|
vsnprintf(query_entry->query + pos, len - 1 - pos, fmt, args); |
|
|
query_entry->query_len = strlen(query_entry->query) + 1; |
|
|
va_end(args); |
|
|
/***** CRITICAL SECTION START *****/ |
|
|
spin_lock(&query_lock); |
|
|
list_add_tail(&query_entry->list, &query_list); |
|
|
spin_unlock(&query_lock); |
|
|
/***** CRITICAL SECTION END *****/ |
|
|
UpdateCounter(CCS_UPDATES_COUNTER_QUERY); |
|
|
/* Give 10 seconds for supervisor's opinion. */ |
|
|
for (query_entry->timer = 0; atomic_read(&queryd_watcher) && CheckCCSFlags(CCS_ALLOW_ENFORCE_GRACE) && query_entry->timer < 100; query_entry->timer++) { |
|
|
wake_up(&query_wait); |
|
|
set_current_state(TASK_INTERRUPTIBLE); |
|
|
schedule_timeout(HZ / 10); |
|
|
if (query_entry->answer) break; |
|
|
} |
|
|
UpdateCounter(CCS_UPDATES_COUNTER_QUERY); |
|
|
/***** CRITICAL SECTION START *****/ |
|
|
spin_lock(&query_lock); |
|
|
list_del(&query_entry->list); |
|
|
spin_unlock(&query_lock); |
|
|
/***** CRITICAL SECTION END *****/ |
|
|
switch (query_entry->answer) { |
|
|
case 1: |
|
|
/* Granted by administrator. */ |
|
|
error = 0; |
|
|
break; |
|
|
case 0: |
|
|
/* Timed out. */ |
|
|
break; |
|
|
default: |
|
|
/* Rejected by administrator. */ |
|
|
break; |
|
|
} |
|
|
out: ; |
|
|
if (query_entry) ccs_free(query_entry->query); |
|
|
ccs_free(query_entry); |
|
|
return error; |
|
|
} |
|
|
|
|
|
static int PollQuery(struct file *file, poll_table *wait) |
|
|
{ |
|
|
int found; |
|
|
/***** CRITICAL SECTION START *****/ |
|
|
spin_lock(&query_lock); |
|
|
found = !list_empty(&query_list); |
|
|
spin_unlock(&query_lock); |
|
|
/***** CRITICAL SECTION END *****/ |
|
|
if (found) return POLLIN | POLLRDNORM; |
|
|
poll_wait(file, &query_wait, wait); |
|
|
/***** CRITICAL SECTION START *****/ |
|
|
spin_lock(&query_lock); |
|
|
found = !list_empty(&query_list); |
|
|
spin_unlock(&query_lock); |
|
|
/***** CRITICAL SECTION END *****/ |
|
|
if (found) return POLLIN | POLLRDNORM; |
|
|
return 0; |
|
|
} |
|
|
|
|
|
static int ReadQuery(struct io_buffer *head) |
|
|
{ |
|
|
struct list_head *tmp; |
|
|
int pos = 0, len = 0; |
|
|
char *buf; |
|
|
if (head->read_avail) return 0; |
|
|
if (head->read_buf) { |
|
|
ccs_free(head->read_buf); head->read_buf = NULL; |
|
|
head->readbuf_size = 0; |
|
|
} |
|
|
/***** CRITICAL SECTION START *****/ |
|
|
spin_lock(&query_lock); |
|
|
list_for_each(tmp, &query_list) { |
|
|
struct query_entry *ptr = list_entry(tmp, struct query_entry, list); |
|
|
if (pos++ == head->read_step) { |
|
|
len = ptr->query_len; |
|
| 961 |
break; |
break; |
| 962 |
} |
case CCS_TYPE_PATH_NUMBER3_ACL: |
| 963 |
} |
perm = container_of(ptr, |
| 964 |
spin_unlock(&query_lock); |
struct ccs_path_number3_acl, |
| 965 |
/***** CRITICAL SECTION END *****/ |
head)->perm; |
| 966 |
if (!len) { |
for (i = 0; i < CCS_MAX_PATH_NUMBER3_OPERATION; |
| 967 |
head->read_step = 0; |
i++) |
| 968 |
return 0; |
if (perm & (1 << i)) |
| 969 |
} |
count++; |
|
if ((buf = ccs_alloc(len)) != NULL) { |
|
|
pos = 0; |
|
|
/***** CRITICAL SECTION START *****/ |
|
|
spin_lock(&query_lock); |
|
|
list_for_each(tmp, &query_list) { |
|
|
struct query_entry *ptr = list_entry(tmp, struct query_entry, list); |
|
|
if (pos++ == head->read_step) { |
|
|
/* Some query can be skiipped since query_list can change, but I don't care. */ |
|
|
if (len == ptr->query_len) memmove(buf, ptr->query, len); |
|
|
break; |
|
|
} |
|
|
} |
|
|
spin_unlock(&query_lock); |
|
|
/***** CRITICAL SECTION END *****/ |
|
|
if (buf[0]) { |
|
|
head->readbuf_size = head->read_avail = len; |
|
|
head->read_buf = buf; |
|
|
head->read_step++; |
|
|
} else { |
|
|
ccs_free(buf); |
|
|
} |
|
|
} |
|
|
return 0; |
|
|
} |
|
|
|
|
|
static int WriteAnswer(struct io_buffer *head) |
|
|
{ |
|
|
char *data = head->write_buf; |
|
|
struct list_head *tmp; |
|
|
unsigned int serial, answer; |
|
|
/***** CRITICAL SECTION START *****/ |
|
|
spin_lock(&query_lock); |
|
|
list_for_each(tmp, &query_list) { |
|
|
struct query_entry *ptr = list_entry(tmp, struct query_entry, list); |
|
|
ptr->timer = 0; |
|
|
} |
|
|
spin_unlock(&query_lock); |
|
|
/***** CRITICAL SECTION END *****/ |
|
|
if (sscanf(data, "A%u=%u", &serial, &answer) != 2) return -EINVAL; |
|
|
/***** CRITICAL SECTION START *****/ |
|
|
spin_lock(&query_lock); |
|
|
list_for_each(tmp, &query_list) { |
|
|
struct query_entry *ptr = list_entry(tmp, struct query_entry, list); |
|
|
if (ptr->serial != serial) continue; |
|
|
if (!ptr->answer) ptr->answer = answer; |
|
|
break; |
|
|
} |
|
|
spin_unlock(&query_lock); |
|
|
/***** CRITICAL SECTION END *****/ |
|
|
return 0; |
|
|
} |
|
|
|
|
|
/************************* /proc INTERFACE HANDLER *************************/ |
|
|
|
|
|
/* Policy updates counter. */ |
|
|
static unsigned int updates_counter[MAX_CCS_UPDATES_COUNTER]; |
|
|
static spinlock_t updates_counter_lock = SPIN_LOCK_UNLOCKED; |
|
|
|
|
|
void UpdateCounter(const unsigned char index) |
|
|
{ |
|
|
/***** CRITICAL SECTION START *****/ |
|
|
spin_lock(&updates_counter_lock); |
|
|
if (index < MAX_CCS_UPDATES_COUNTER) updates_counter[index]++; |
|
|
spin_unlock(&updates_counter_lock); |
|
|
/***** CRITICAL SECTION END *****/ |
|
|
} |
|
|
|
|
|
static int ReadUpdatesCounter(struct io_buffer *head) |
|
|
{ |
|
|
if (!head->read_eof) { |
|
|
unsigned int counter[MAX_CCS_UPDATES_COUNTER]; |
|
|
/***** CRITICAL SECTION START *****/ |
|
|
spin_lock(&updates_counter_lock); |
|
|
memmove(counter, updates_counter, sizeof(updates_counter)); |
|
|
memset(updates_counter, 0, sizeof(updates_counter)); |
|
|
spin_unlock(&updates_counter_lock); |
|
|
/***** CRITICAL SECTION END *****/ |
|
|
io_printf(head, |
|
|
"/proc/ccs/system_policy: %10u\n" |
|
|
"/proc/ccs/domain_policy: %10u\n" |
|
|
"/proc/ccs/exception_policy: %10u\n" |
|
|
"/proc/ccs/profile: %10u\n" |
|
|
"/proc/ccs/query: %10u\n" |
|
|
"/proc/ccs/manager: %10u\n" |
|
|
"/proc/ccs/grant_log: %10u\n" |
|
|
"/proc/ccs/reject_log: %10u\n", |
|
|
counter[CCS_UPDATES_COUNTER_SYSTEM_POLICY], |
|
|
counter[CCS_UPDATES_COUNTER_DOMAIN_POLICY], |
|
|
counter[CCS_UPDATES_COUNTER_EXCEPTION_POLICY], |
|
|
counter[CCS_UPDATES_COUNTER_PROFILE], |
|
|
counter[CCS_UPDATES_COUNTER_QUERY], |
|
|
counter[CCS_UPDATES_COUNTER_MANAGER], |
|
|
counter[CCS_UPDATES_COUNTER_GRANT_LOG], |
|
|
counter[CCS_UPDATES_COUNTER_REJECT_LOG]); |
|
|
head->read_eof = 1; |
|
|
} |
|
|
return 0; |
|
|
} |
|
|
|
|
|
static int ReadVersion(struct io_buffer *head) |
|
|
{ |
|
|
if (!head->read_eof) { |
|
|
if (io_printf(head, "1.5.2-pre") == 0) head->read_eof = 1; |
|
|
} |
|
|
return 0; |
|
|
} |
|
|
|
|
|
static int ReadMemoryCounter(struct io_buffer *head) |
|
|
{ |
|
|
if (!head->read_eof) { |
|
|
const int shared = GetMemoryUsedForSaveName(), private = GetMemoryUsedForElements(), dynamic = GetMemoryUsedForDynamic(); |
|
|
if (io_printf(head, "Shared: %10u\nPrivate: %10u\nDynamic: %10u\nTotal: %10u\n", shared, private, dynamic, shared + private + dynamic) == 0) head->read_eof = 1; |
|
|
} |
|
|
return 0; |
|
|
} |
|
|
|
|
|
static int ReadSelfDomain(struct io_buffer *head) |
|
|
{ |
|
|
if (!head->read_eof) { |
|
|
io_printf(head, "%s", current->domain_info->domainname->name); |
|
|
head->read_eof = 1; |
|
|
} |
|
|
return 0; |
|
|
} |
|
|
|
|
|
int CCS_OpenControl(const int type, struct file *file) |
|
|
{ |
|
|
struct io_buffer *head = ccs_alloc(sizeof(*head)); |
|
|
if (!head) return -ENOMEM; |
|
|
mutex_init(&head->read_sem); |
|
|
mutex_init(&head->write_sem); |
|
|
switch (type) { |
|
|
#ifdef CONFIG_SAKURA |
|
|
case CCS_SYSTEMPOLICY: |
|
|
head->write = AddSystemPolicy; |
|
|
head->read = ReadSystemPolicy; |
|
|
break; |
|
|
#endif |
|
|
#ifdef CONFIG_TOMOYO |
|
|
case CCS_DOMAINPOLICY: |
|
|
head->write = AddDomainPolicy; |
|
|
head->read = ReadDomainPolicy; |
|
|
break; |
|
|
case CCS_EXCEPTIONPOLICY: |
|
|
head->write = AddExceptionPolicy; |
|
|
head->read = ReadExceptionPolicy; |
|
|
break; |
|
|
case CCS_GRANTLOG: |
|
|
head->poll = PollGrantLog; |
|
|
head->read = ReadGrantLog; |
|
|
break; |
|
|
case CCS_REJECTLOG: |
|
|
head->poll = PollRejectLog; |
|
|
head->read = ReadRejectLog; |
|
|
break; |
|
|
#endif |
|
|
case CCS_SELFDOMAIN: |
|
|
head->read = ReadSelfDomain; |
|
|
break; |
|
|
case CCS_DOMAIN_STATUS: |
|
|
head->write = UpdateDomainProfile; |
|
|
head->read = ReadDomainProfile; |
|
|
break; |
|
|
case CCS_PROCESS_STATUS: |
|
|
head->write = WritePID; |
|
|
head->read = ReadPID; |
|
|
break; |
|
|
case CCS_VERSION: |
|
|
head->read = ReadVersion; |
|
|
head->readbuf_size = 128; |
|
|
break; |
|
|
case CCS_MEMINFO: |
|
|
head->read = ReadMemoryCounter; |
|
|
head->readbuf_size = 128; |
|
|
break; |
|
|
case CCS_PROFILE: |
|
|
head->write = SetProfile; |
|
|
head->read = ReadProfile; |
|
|
break; |
|
|
case CCS_QUERY: |
|
|
head->poll = PollQuery; |
|
|
head->write = WriteAnswer; |
|
|
head->read = ReadQuery; |
|
|
break; |
|
|
case CCS_MANAGER: |
|
|
head->write = AddManagerPolicy; |
|
|
head->read = ReadManagerPolicy; |
|
|
break; |
|
|
case CCS_UPDATESCOUNTER: |
|
|
head->read = ReadUpdatesCounter; |
|
|
break; |
|
|
} |
|
|
if (type != CCS_GRANTLOG && type != CCS_REJECTLOG && type != CCS_QUERY) { |
|
|
if (!head->readbuf_size) head->readbuf_size = PAGE_SIZE * 2; |
|
|
if ((head->read_buf = ccs_alloc(head->readbuf_size)) == NULL) { |
|
|
ccs_free(head); |
|
|
return -ENOMEM; |
|
|
} |
|
|
} |
|
|
if (head->write) { |
|
|
head->writebuf_size = PAGE_SIZE * 2; |
|
|
if ((head->write_buf = ccs_alloc(head->writebuf_size)) == NULL) { |
|
|
ccs_free(head->read_buf); |
|
|
ccs_free(head); |
|
|
return -ENOMEM; |
|
|
} |
|
|
} |
|
|
file->private_data = head; |
|
|
if (type == CCS_SELFDOMAIN) CCS_ReadControl(file, NULL, 0); |
|
|
else if (head->write == WriteAnswer) atomic_inc(&queryd_watcher); |
|
|
return 0; |
|
|
} |
|
|
|
|
|
static int CopyToUser(struct io_buffer *head, char __user * buffer, int buffer_len) |
|
|
{ |
|
|
int len = head->read_avail; |
|
|
char *cp = head->read_buf; |
|
|
if (len > buffer_len) len = buffer_len; |
|
|
if (len) { |
|
|
if (copy_to_user(buffer, cp, len)) return -EFAULT; |
|
|
head->read_avail -= len; |
|
|
memmove(cp, cp + len, head->read_avail); |
|
|
} |
|
|
return len; |
|
|
} |
|
|
|
|
|
int CCS_PollControl(struct file *file, poll_table *wait) |
|
|
{ |
|
|
struct io_buffer *head = file->private_data; |
|
|
if (!head->poll) return -ENOSYS; |
|
|
return head->poll(file, wait); |
|
|
} |
|
|
|
|
|
int CCS_ReadControl(struct file *file, char __user *buffer, const int buffer_len) |
|
|
{ |
|
|
int len = 0; |
|
|
struct io_buffer *head = file->private_data; |
|
|
if (!head->read) return -ENOSYS; |
|
|
if (!access_ok(VERIFY_WRITE, buffer, buffer_len)) return -EFAULT; |
|
|
if (mutex_lock_interruptible(&head->read_sem)) return -EINTR; |
|
|
len = head->read(head); |
|
|
if (len >= 0) len = CopyToUser(head, buffer, buffer_len); |
|
|
mutex_unlock(&head->read_sem); |
|
|
return len; |
|
|
} |
|
|
|
|
|
int CCS_WriteControl(struct file *file, const char __user *buffer, const int buffer_len) |
|
|
{ |
|
|
struct io_buffer *head = file->private_data; |
|
|
int error = buffer_len; |
|
|
int avail_len = buffer_len; |
|
|
char *cp0 = head->write_buf; |
|
|
if (!head->write) return -ENOSYS; |
|
|
if (!access_ok(VERIFY_READ, buffer, buffer_len)) return -EFAULT; |
|
|
if (!isRoot()) return -EPERM; |
|
|
if (head->write != WritePID && !IsPolicyManager()) { |
|
|
return -EPERM; /* Forbid updating policies for non manager programs. */ |
|
|
} |
|
|
if (mutex_lock_interruptible(&head->write_sem)) return -EINTR; |
|
|
while (avail_len > 0) { |
|
|
char c; |
|
|
if (head->write_avail >= head->writebuf_size - 1) { |
|
|
error = -ENOMEM; |
|
| 970 |
break; |
break; |
| 971 |
} else if (get_user(c, buffer)) { |
case CCS_TYPE_IP_NETWORK_ACL: |
| 972 |
error = -EFAULT; |
perm = container_of(ptr, struct ccs_ip_network_acl, |
| 973 |
|
head)->perm; |
| 974 |
|
for (i = 0; i < CCS_MAX_NETWORK_OPERATION; i++) |
| 975 |
|
if (perm & (1 << i)) |
| 976 |
|
count++; |
| 977 |
break; |
break; |
| 978 |
|
default: |
| 979 |
|
count++; |
| 980 |
} |
} |
| 981 |
buffer++; avail_len--; |
} |
| 982 |
cp0[head->write_avail++] = c; |
if (count < ccs_flags(domain, CCS_MAX_ACCEPT_ENTRY)) |
| 983 |
if (c != '\n') continue; |
return true; |
| 984 |
cp0[head->write_avail - 1] = '\0'; |
if (!domain->quota_warned) { |
| 985 |
head->write_avail = 0; |
domain->quota_warned = true; |
| 986 |
NormalizeLine(cp0); |
printk(KERN_WARNING "WARNING: " |
| 987 |
head->write(head); |
"Domain '%s' has so many ACLs to hold. " |
| 988 |
} |
"Stopped learning mode.\n", domain->domainname->name); |
| 989 |
mutex_unlock(&head->write_sem); |
} |
| 990 |
return error; |
return false; |
|
} |
|
|
|
|
|
|
|
|
int CCS_CloseControl(struct file *file) |
|
|
{ |
|
|
struct io_buffer *head = file->private_data; |
|
|
if (head->write == WriteAnswer) atomic_dec(&queryd_watcher); |
|
|
else if (head->read == ReadMemoryCounter) profile_loaded = 1; |
|
|
ccs_free(head->read_buf); head->read_buf = NULL; |
|
|
ccs_free(head->write_buf); head->write_buf = NULL; |
|
|
ccs_free(head); head = NULL; |
|
|
file->private_data = NULL; |
|
|
return 0; |
|
| 991 |
} |
} |
TOMOYO
Parent Directory
Revision Log
Patch