3 |
* |
* |
4 |
* Common functions for SAKURA and TOMOYO. |
* Common functions for SAKURA and TOMOYO. |
5 |
* |
* |
6 |
* Copyright (C) 2005-2007 NTT DATA CORPORATION |
* Copyright (C) 2005-2008 NTT DATA CORPORATION |
7 |
* |
* |
8 |
* Version: 1.5.3-pre 2007/12/18 |
* Version: 1.6.0-pre 2008/03/04 |
9 |
* |
* |
10 |
* 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. |
11 |
* See README.ccs for ChangeLog. |
* See README.ccs for ChangeLog. |
32 |
#include <linux/ccs_common.h> |
#include <linux/ccs_common.h> |
33 |
#include <linux/ccs_proc.h> |
#include <linux/ccs_proc.h> |
34 |
#include <linux/tomoyo.h> |
#include <linux/tomoyo.h> |
35 |
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) |
36 |
|
#define find_task_by_pid find_task_by_vpid |
37 |
|
#endif |
38 |
|
|
39 |
#ifdef CONFIG_TOMOYO_MAX_ACCEPT_ENTRY |
#ifdef CONFIG_TOMOYO_MAX_ACCEPT_ENTRY |
40 |
#define MAX_ACCEPT_ENTRY (CONFIG_TOMOYO_MAX_ACCEPT_ENTRY) |
#define MAX_ACCEPT_ENTRY (CONFIG_TOMOYO_MAX_ACCEPT_ENTRY) |
55 |
/************************* VARIABLES *************************/ |
/************************* VARIABLES *************************/ |
56 |
|
|
57 |
/* /sbin/init started? */ |
/* /sbin/init started? */ |
58 |
int sbin_init_started = 0; |
bool sbin_init_started = false; |
59 |
|
|
60 |
const char *ccs_log_level = KERN_DEBUG; |
const char *ccs_log_level = KERN_DEBUG; |
61 |
|
|
62 |
|
static const char *mode_4[4] = { "disabled", "learning", "permissive", "enforcing" }; |
63 |
|
static const char *mode_2[4] = { "disabled", "enabled", "enabled", "enabled" }; |
64 |
|
|
65 |
static struct { |
static struct { |
66 |
const char *keyword; |
const char *keyword; |
67 |
unsigned int current_value; |
unsigned int current_value; |
88 |
[CCS_TOMOYO_ALT_EXEC] = { "ALT_EXEC", 0, 0 }, /* Reserved for string. */ |
[CCS_TOMOYO_ALT_EXEC] = { "ALT_EXEC", 0, 0 }, /* Reserved for string. */ |
89 |
}; |
}; |
90 |
|
|
91 |
|
#ifdef CONFIG_TOMOYO |
92 |
|
const char *capability_control_keyword[TOMOYO_MAX_CAPABILITY_INDEX] = { |
93 |
|
[TOMOYO_INET_STREAM_SOCKET_CREATE] = "inet_tcp_create", |
94 |
|
[TOMOYO_INET_STREAM_SOCKET_LISTEN] = "inet_tcp_listen", |
95 |
|
[TOMOYO_INET_STREAM_SOCKET_CONNECT] = "inet_tcp_connect", |
96 |
|
[TOMOYO_USE_INET_DGRAM_SOCKET] = "use_inet_udp", |
97 |
|
[TOMOYO_USE_INET_RAW_SOCKET] = "use_inet_ip", |
98 |
|
[TOMOYO_USE_ROUTE_SOCKET] = "use_route", |
99 |
|
[TOMOYO_USE_PACKET_SOCKET] = "use_packet", |
100 |
|
[TOMOYO_SYS_MOUNT] = "SYS_MOUNT", |
101 |
|
[TOMOYO_SYS_UMOUNT] = "SYS_UMOUNT", |
102 |
|
[TOMOYO_SYS_REBOOT] = "SYS_REBOOT", |
103 |
|
[TOMOYO_SYS_CHROOT] = "SYS_CHROOT", |
104 |
|
[TOMOYO_SYS_KILL] = "SYS_KILL", |
105 |
|
[TOMOYO_SYS_VHANGUP] = "SYS_VHANGUP", |
106 |
|
[TOMOYO_SYS_SETTIME] = "SYS_TIME", |
107 |
|
[TOMOYO_SYS_NICE] = "SYS_NICE", |
108 |
|
[TOMOYO_SYS_SETHOSTNAME] = "SYS_SETHOSTNAME", |
109 |
|
[TOMOYO_USE_KERNEL_MODULE] = "use_kernel_module", |
110 |
|
[TOMOYO_CREATE_FIFO] = "create_fifo", |
111 |
|
[TOMOYO_CREATE_BLOCK_DEV] = "create_block_dev", |
112 |
|
[TOMOYO_CREATE_CHAR_DEV] = "create_char_dev", |
113 |
|
[TOMOYO_CREATE_UNIX_SOCKET] = "create_unix_socket", |
114 |
|
[TOMOYO_SYS_LINK] = "SYS_LINK", |
115 |
|
[TOMOYO_SYS_SYMLINK] = "SYS_SYMLINK", |
116 |
|
[TOMOYO_SYS_RENAME] = "SYS_RENAME", |
117 |
|
[TOMOYO_SYS_UNLINK] = "SYS_UNLINK", |
118 |
|
[TOMOYO_SYS_CHMOD] = "SYS_CHMOD", |
119 |
|
[TOMOYO_SYS_CHOWN] = "SYS_CHOWN", |
120 |
|
[TOMOYO_SYS_IOCTL] = "SYS_IOCTL", |
121 |
|
[TOMOYO_SYS_KEXEC_LOAD] = "SYS_KEXEC_LOAD", |
122 |
|
[TOMOYO_SYS_PIVOT_ROOT] = "SYS_PIVOT_ROOT", |
123 |
|
[TOMOYO_SYS_PTRACE] = "SYS_PTRACE", |
124 |
|
}; |
125 |
|
#endif |
126 |
|
|
127 |
struct profile { |
struct profile { |
128 |
unsigned int value[CCS_MAX_CONTROL_INDEX]; |
unsigned int value[CCS_MAX_CONTROL_INDEX]; |
129 |
const struct path_info *comment; |
const struct path_info *comment; |
130 |
const struct path_info *alt_exec; |
const struct path_info *alt_exec; |
131 |
|
#ifdef CONFIG_TOMOYO |
132 |
|
unsigned char capability_value[TOMOYO_MAX_CAPABILITY_INDEX]; |
133 |
|
#endif |
134 |
}; |
}; |
135 |
|
|
136 |
static struct profile *profile_ptr[MAX_PROFILES]; |
static struct profile *profile_ptr[MAX_PROFILES]; |
137 |
|
static bool manage_by_non_root = false; |
138 |
|
|
139 |
/************************* UTILITY FUNCTIONS *************************/ |
/************************* UTILITY FUNCTIONS *************************/ |
140 |
|
|
148 |
__setup("TOMOYO_QUIET", TOMOYO_Quiet_Setup); |
__setup("TOMOYO_QUIET", TOMOYO_Quiet_Setup); |
149 |
#endif |
#endif |
150 |
|
|
|
/* Am I root? */ |
|
|
static int isRoot(void) |
|
|
{ |
|
|
return !current->uid && !current->euid; |
|
|
} |
|
|
|
|
151 |
/* |
/* |
152 |
* Format string. |
* Format string. |
153 |
* Leading and trailing whitespaces are removed. |
* Leading and trailing whitespaces are removed. |
156 |
static void NormalizeLine(unsigned char *buffer) |
static void NormalizeLine(unsigned char *buffer) |
157 |
{ |
{ |
158 |
unsigned char *sp = buffer, *dp = buffer; |
unsigned char *sp = buffer, *dp = buffer; |
159 |
int first = 1; |
bool first = true; |
160 |
while (*sp && (*sp <= ' ' || *sp >= 127)) sp++; |
while (*sp && (*sp <= ' ' || *sp >= 127)) sp++; |
161 |
while (*sp) { |
while (*sp) { |
162 |
if (!first) *dp++ = ' '; |
if (!first) *dp++ = ' '; |
163 |
first = 0; |
first = false; |
164 |
while (*sp > ' ' && *sp < 127) *dp++ = *sp++; |
while (*sp > ' ' && *sp < 127) *dp++ = *sp++; |
165 |
while (*sp && (*sp <= ' ' || *sp >= 127)) sp++; |
while (*sp && (*sp <= ' ' || *sp >= 127)) sp++; |
166 |
} |
} |
169 |
|
|
170 |
/* |
/* |
171 |
* Check whether the given filename follows the naming rules. |
* Check whether the given filename follows the naming rules. |
172 |
* Returns nonzero if follows, zero otherwise. |
* Returns true if follows, false otherwise. |
173 |
*/ |
*/ |
174 |
bool IsCorrectPath(const char *filename, const int start_type, const int pattern_type, const int end_type, const char *function) |
bool IsCorrectPath(const char *filename, const s8 start_type, const s8 pattern_type, const s8 end_type, const char *function) |
175 |
{ |
{ |
176 |
int contains_pattern = 0; |
bool contains_pattern = false; |
177 |
char c, d, e; |
char c, d, e; |
178 |
const char *original_filename = filename; |
const char *original_filename = filename; |
179 |
if (!filename) goto out; |
if (!filename) goto out; |
205 |
case 'A': /* "\A" */ |
case 'A': /* "\A" */ |
206 |
case '-': /* "\-" */ |
case '-': /* "\-" */ |
207 |
if (pattern_type == -1) break; /* Must not contain pattern */ |
if (pattern_type == -1) break; /* Must not contain pattern */ |
208 |
contains_pattern = 1; |
contains_pattern = true; |
209 |
continue; |
continue; |
210 |
case '0': /* "\ooo" */ |
case '0': /* "\ooo" */ |
211 |
case '1': |
case '1': |
227 |
if (pattern_type == 1) { /* Must contain pattern */ |
if (pattern_type == 1) { /* Must contain pattern */ |
228 |
if (!contains_pattern) goto out; |
if (!contains_pattern) goto out; |
229 |
} |
} |
230 |
return 1; |
return true; |
231 |
out: |
out: |
232 |
printk(KERN_DEBUG "%s: Invalid pathname '%s'\n", function, original_filename); |
printk(KERN_DEBUG "%s: Invalid pathname '%s'\n", function, original_filename); |
233 |
return 0; |
return false; |
234 |
} |
} |
235 |
|
|
236 |
/* |
/* |
237 |
* Check whether the given domainname follows the naming rules. |
* Check whether the given domainname follows the naming rules. |
238 |
* Returns nonzero if follows, zero otherwise. |
* Returns true if follows, false otherwise. |
239 |
*/ |
*/ |
240 |
bool IsCorrectDomain(const unsigned char *domainname, const char *function) |
bool IsCorrectDomain(const unsigned char *domainname, const char *function) |
241 |
{ |
{ |
243 |
const char *org_domainname = domainname; |
const char *org_domainname = domainname; |
244 |
if (!domainname || strncmp(domainname, ROOT_NAME, ROOT_NAME_LEN)) goto out; |
if (!domainname || strncmp(domainname, ROOT_NAME, ROOT_NAME_LEN)) goto out; |
245 |
domainname += ROOT_NAME_LEN; |
domainname += ROOT_NAME_LEN; |
246 |
if (!*domainname) return 1; |
if (!*domainname) return true; |
247 |
do { |
do { |
248 |
if (*domainname++ != ' ') goto out; |
if (*domainname++ != ' ') goto out; |
249 |
if (*domainname++ != '/') goto out; |
if (*domainname++ != '/') goto out; |
271 |
} |
} |
272 |
} |
} |
273 |
} while (*domainname); |
} while (*domainname); |
274 |
return 1; |
return true; |
275 |
out: |
out: |
276 |
printk(KERN_DEBUG "%s: Invalid domainname '%s'\n", function, org_domainname); |
printk(KERN_DEBUG "%s: Invalid domainname '%s'\n", function, org_domainname); |
277 |
return 0; |
return false; |
278 |
} |
} |
279 |
|
|
280 |
bool IsDomainDef(const unsigned char *buffer) |
bool IsDomainDef(const unsigned char *buffer) |
342 |
ptr->depth = PathDepth(name); |
ptr->depth = PathDepth(name); |
343 |
} |
} |
344 |
|
|
345 |
static int FileMatchesToPattern2(const char *filename, const char *filename_end, const char *pattern, const char *pattern_end) |
static bool FileMatchesToPattern2(const char *filename, const char *filename_end, const char *pattern, const char *pattern_end) |
346 |
{ |
{ |
347 |
while (filename < filename_end && pattern < pattern_end) { |
while (filename < filename_end && pattern < pattern_end) { |
348 |
if (*pattern != '\\') { |
if (*pattern != '\\') { |
349 |
if (*filename++ != *pattern++) return 0; |
if (*filename++ != *pattern++) return false; |
350 |
} else { |
} else { |
351 |
char c = *filename; |
char c = *filename; |
352 |
pattern++; |
pattern++; |
353 |
switch (*pattern) { |
switch (*pattern) { |
354 |
case '?': |
case '?': |
355 |
if (c == '/') { |
if (c == '/') { |
356 |
return 0; |
return false; |
357 |
} else if (c == '\\') { |
} else if (c == '\\') { |
358 |
if ((c = filename[1]) == '\\') { |
if ((c = filename[1]) == '\\') { |
359 |
filename++; /* safe because filename is \\ */ |
filename++; /* safe because filename is \\ */ |
360 |
} else if (c >= '0' && c <= '3' && (c = filename[2]) >= '0' && c <= '7' && (c = filename[3]) >= '0' && c <= '7') { |
} else if (c >= '0' && c <= '3' && (c = filename[2]) >= '0' && c <= '7' && (c = filename[3]) >= '0' && c <= '7') { |
361 |
filename += 3; /* safe because filename is \ooo */ |
filename += 3; /* safe because filename is \ooo */ |
362 |
} else { |
} else { |
363 |
return 0; |
return false; |
364 |
} |
} |
365 |
} |
} |
366 |
break; |
break; |
367 |
case '\\': |
case '\\': |
368 |
if (c != '\\') return 0; |
if (c != '\\') return false; |
369 |
if (*++filename != '\\') return 0; /* safe because *filename != '\0' */ |
if (*++filename != '\\') return false; /* safe because *filename != '\0' */ |
370 |
break; |
break; |
371 |
case '+': |
case '+': |
372 |
if (c < '0' || c > '9') return 0; |
if (c < '0' || c > '9') return false; |
373 |
break; |
break; |
374 |
case 'x': |
case 'x': |
375 |
if (!((c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f'))) return 0; |
if (!((c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f'))) return false; |
376 |
break; |
break; |
377 |
case 'a': |
case 'a': |
378 |
if (!((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z'))) return 0; |
if (!((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z'))) return false; |
379 |
break; |
break; |
380 |
case '0': |
case '0': |
381 |
case '1': |
case '1': |
388 |
pattern += 2; /* safe because pattern is \ooo */ |
pattern += 2; /* safe because pattern is \ooo */ |
389 |
break; |
break; |
390 |
} |
} |
391 |
return 0; /* Not matched. */ |
return false; /* Not matched. */ |
392 |
case '*': |
case '*': |
393 |
case '@': |
case '@': |
394 |
{ |
{ |
395 |
int i; |
int i; |
396 |
for (i = 0; i <= filename_end - filename; i++) { |
for (i = 0; i <= filename_end - filename; i++) { |
397 |
if (FileMatchesToPattern2(filename + i, filename_end, pattern + 1, pattern_end)) return 1; |
if (FileMatchesToPattern2(filename + i, filename_end, pattern + 1, pattern_end)) return true; |
398 |
if ((c = filename[i]) == '.' && *pattern == '@') break; |
if ((c = filename[i]) == '.' && *pattern == '@') break; |
399 |
if (c == '\\') { |
if (c == '\\') { |
400 |
if ((c = filename[i + 1]) == '\\') { |
if ((c = filename[i + 1]) == '\\') { |
406 |
} |
} |
407 |
} |
} |
408 |
} |
} |
409 |
return 0; /* Not matched. */ |
return false; /* Not matched. */ |
410 |
} |
} |
411 |
default: |
default: |
412 |
{ |
{ |
419 |
while (((c = filename[j]) >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')) j++; |
while (((c = filename[j]) >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')) j++; |
420 |
} |
} |
421 |
for (i = 1; i <= j; i++) { |
for (i = 1; i <= j; i++) { |
422 |
if (FileMatchesToPattern2(filename + i, filename_end, pattern + 1, pattern_end)) return 1; |
if (FileMatchesToPattern2(filename + i, filename_end, pattern + 1, pattern_end)) return true; |
423 |
} |
} |
424 |
} |
} |
425 |
return 0; /* Not matched or bad pattern. */ |
return false; /* Not matched or bad pattern. */ |
426 |
} |
} |
427 |
filename++; /* safe because *filename != '\0' */ |
filename++; /* safe because *filename != '\0' */ |
428 |
pattern++; /* safe because *pattern != '\0' */ |
pattern++; /* safe because *pattern != '\0' */ |
432 |
return (filename == filename_end && pattern == pattern_end); |
return (filename == filename_end && pattern == pattern_end); |
433 |
} |
} |
434 |
|
|
435 |
static int FileMatchesToPattern(const char *filename, const char *filename_end, const char *pattern, const char *pattern_end) |
static bool FileMatchesToPattern(const char *filename, const char *filename_end, const char *pattern, const char *pattern_end) |
436 |
{ |
{ |
437 |
const char *pattern_start = pattern; |
const char *pattern_start = pattern; |
438 |
int first = 1; |
bool first = true; |
439 |
int result; |
bool result; |
440 |
while (pattern < pattern_end - 1) { |
while (pattern < pattern_end - 1) { |
441 |
if (*pattern++ != '\\' || *pattern++ != '-') continue; |
if (*pattern++ != '\\' || *pattern++ != '-') continue; |
442 |
result = FileMatchesToPattern2(filename, filename_end, pattern_start, pattern - 2); |
result = FileMatchesToPattern2(filename, filename_end, pattern_start, pattern - 2); |
443 |
if (first) result = !result; |
if (first) result = !result; |
444 |
if (result) return 0; |
if (result) return false; |
445 |
first = 0; |
first = false; |
446 |
pattern_start = pattern; |
pattern_start = pattern; |
447 |
} |
} |
448 |
result = FileMatchesToPattern2(filename, filename_end, pattern_start, pattern_end); |
result = FileMatchesToPattern2(filename, filename_end, pattern_start, pattern_end); |
451 |
|
|
452 |
/* |
/* |
453 |
* Check whether the given pathname matches to the given pattern. |
* Check whether the given pathname matches to the given pattern. |
454 |
* Returns nonzero if matches, zero otherwise. |
* Returns true if matches, false otherwise. |
455 |
* |
* |
456 |
* The following patterns are available. |
* The following patterns are available. |
457 |
* \\ \ itself. |
* \\ \ itself. |
468 |
* \- Subtraction operator. |
* \- Subtraction operator. |
469 |
*/ |
*/ |
470 |
|
|
471 |
int PathMatchesToPattern(const struct path_info *pathname0, const struct path_info *pattern0) |
bool PathMatchesToPattern(const struct path_info *pathname0, const struct path_info *pattern0) |
472 |
{ |
{ |
473 |
/* if (!pathname || !pattern) return 0; */ |
/* if (!pathname || !pattern) return false; */ |
474 |
const char *pathname = pathname0->name, *pattern = pattern0->name; |
const char *pathname = pathname0->name, *pattern = pattern0->name; |
475 |
const int len = pattern0->const_len; |
const int len = pattern0->const_len; |
476 |
if (!pattern0->is_patterned) return !pathcmp(pathname0, pattern0); |
if (!pattern0->is_patterned) return !pathcmp(pathname0, pattern0); |
477 |
if (pathname0->depth != pattern0->depth) return 0; |
if (pathname0->depth != pattern0->depth) return false; |
478 |
if (strncmp(pathname, pattern, len)) return 0; |
if (strncmp(pathname, pattern, len)) return false; |
479 |
pathname += len; pattern += len; |
pathname += len; pattern += len; |
480 |
while (*pathname && *pattern) { |
while (*pathname && *pattern) { |
481 |
const char *pathname_delimiter = strchr(pathname, '/'), *pattern_delimiter = strchr(pattern, '/'); |
const char *pathname_delimiter = strchr(pathname, '/'), *pattern_delimiter = strchr(pattern, '/'); |
482 |
if (!pathname_delimiter) pathname_delimiter = strchr(pathname, '\0'); |
if (!pathname_delimiter) pathname_delimiter = strchr(pathname, '\0'); |
483 |
if (!pattern_delimiter) pattern_delimiter = strchr(pattern, '\0'); |
if (!pattern_delimiter) pattern_delimiter = strchr(pattern, '\0'); |
484 |
if (!FileMatchesToPattern(pathname, pathname_delimiter, pattern, pattern_delimiter)) return 0; |
if (!FileMatchesToPattern(pathname, pathname_delimiter, pattern, pattern_delimiter)) return false; |
485 |
pathname = *pathname_delimiter ? pathname_delimiter + 1 : pathname_delimiter; |
pathname = *pathname_delimiter ? pathname_delimiter + 1 : pathname_delimiter; |
486 |
pattern = *pattern_delimiter ? pattern_delimiter + 1 : pattern_delimiter; |
pattern = *pattern_delimiter ? pattern_delimiter + 1 : pattern_delimiter; |
487 |
} |
} |
543 |
/************************* DOMAIN POLICY HANDLER *************************/ |
/************************* DOMAIN POLICY HANDLER *************************/ |
544 |
|
|
545 |
/* Check whether the given access control is enabled. */ |
/* Check whether the given access control is enabled. */ |
546 |
unsigned int CheckCCSFlags(const unsigned int index) |
unsigned int CheckCCSFlags_NoSleepCheck(const u8 index) |
547 |
{ |
{ |
548 |
const u8 profile = current->domain_info->profile; |
const u8 profile = current->domain_info->profile; |
549 |
return sbin_init_started && index < CCS_MAX_CONTROL_INDEX |
return sbin_init_started && index < CCS_MAX_CONTROL_INDEX |
553 |
&& profile_ptr[profile] ? profile_ptr[profile]->value[index] : 0; |
&& profile_ptr[profile] ? profile_ptr[profile]->value[index] : 0; |
554 |
} |
} |
555 |
|
|
556 |
bool TomoyoVerboseMode(void) |
static bool sleep_check(void) |
557 |
{ |
{ |
558 |
return CheckCCSFlags(CCS_TOMOYO_VERBOSE) != 0; |
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) |
559 |
|
if (unlikely(in_interrupt())) |
560 |
|
#else |
561 |
|
if (unlikely(in_atomic())) |
562 |
|
#endif |
563 |
|
{ |
564 |
|
static u8 count = 20; |
565 |
|
if (count) { |
566 |
|
count--; |
567 |
|
printk(KERN_ERR "BUG: sleeping function called from invalid context.\n"); |
568 |
|
dump_stack(); |
569 |
|
} |
570 |
|
return false; |
571 |
|
} |
572 |
|
return true; |
573 |
} |
} |
574 |
|
|
575 |
/* Check whether the given access control is enforce mode. */ |
unsigned int CheckCCSFlags(const u8 index) |
576 |
bool CheckCCSEnforce(const unsigned int index) |
{ |
577 |
|
return sleep_check() ? CheckCCSFlags_NoSleepCheck(index) : 0; |
578 |
|
} |
579 |
|
|
580 |
|
#ifdef CONFIG_TOMOYO |
581 |
|
/* Check whether the given capability control is enabled. */ |
582 |
|
u8 CheckCapabilityFlags(const u8 index) |
583 |
{ |
{ |
584 |
return CheckCCSFlags(index) == 3; |
const u8 profile = current->domain_info->profile; |
585 |
|
return sbin_init_started && index < TOMOYO_MAX_CAPABILITY_INDEX |
586 |
|
#if MAX_PROFILES != 256 |
587 |
|
&& profile < MAX_PROFILES |
588 |
|
#endif |
589 |
|
&& sleep_check() |
590 |
|
&& profile_ptr[profile] ? profile_ptr[profile]->capability_value[index] : 0; |
591 |
|
} |
592 |
|
|
593 |
|
const char *cap_operation2keyword(const u8 operation) |
594 |
|
{ |
595 |
|
return operation < TOMOYO_MAX_CAPABILITY_INDEX ? capability_control_keyword[operation] : NULL; |
596 |
|
} |
597 |
|
|
598 |
|
#endif |
599 |
|
|
600 |
|
bool TomoyoVerboseMode(void) |
601 |
|
{ |
602 |
|
return CheckCCSFlags(CCS_TOMOYO_VERBOSE) != 0; |
603 |
} |
} |
604 |
|
|
605 |
bool CheckDomainQuota(struct domain_info * const domain) |
bool CheckDomainQuota(struct domain_info * const domain) |
606 |
{ |
{ |
607 |
unsigned int count = 0; |
unsigned int count = 0; |
608 |
struct acl_info *ptr; |
struct acl_info *ptr; |
609 |
if (!domain) return 1; |
if (!domain) return true; |
610 |
list1_for_each_entry(ptr, &domain->acl_info_list, list) { |
list1_for_each_entry(ptr, &domain->acl_info_list, list) { |
611 |
if (!ptr->is_deleted) count++; |
if (!(ptr->type & ACL_DELETED)) count++; |
612 |
} |
} |
613 |
if (count < CheckCCSFlags(CCS_TOMOYO_MAX_ACCEPT_ENTRY)) return 1; |
if (count < CheckCCSFlags(CCS_TOMOYO_MAX_ACCEPT_ENTRY)) return true; |
614 |
if (!domain->quota_warned) { |
if (!domain->quota_warned) { |
615 |
domain->quota_warned = 1; |
domain->quota_warned = true; |
616 |
printk("TOMOYO-WARNING: Domain '%s' has so many ACLs to hold. Stopped learning mode.\n", domain->domainname->name); |
printk("TOMOYO-WARNING: Domain '%s' has so many ACLs to hold. Stopped learning mode.\n", domain->domainname->name); |
617 |
} |
} |
618 |
return 0; |
return false; |
|
} |
|
|
|
|
|
/* Check whether the given access control is learning mode. */ |
|
|
bool CheckCCSAccept(const unsigned int index, struct domain_info * const domain) |
|
|
{ |
|
|
if (CheckCCSFlags(index) != 1) return 0; |
|
|
return CheckDomainQuota(domain); |
|
619 |
} |
} |
620 |
|
|
621 |
static struct profile *FindOrAssignNewProfile(const unsigned int profile) |
static struct profile *FindOrAssignNewProfile(const unsigned int profile) |
627 |
if ((ptr = alloc_element(sizeof(*ptr))) != NULL) { |
if ((ptr = alloc_element(sizeof(*ptr))) != NULL) { |
628 |
int i; |
int i; |
629 |
for (i = 0; i < CCS_MAX_CONTROL_INDEX; i++) ptr->value[i] = ccs_control_array[i].current_value; |
for (i = 0; i < CCS_MAX_CONTROL_INDEX; i++) ptr->value[i] = ccs_control_array[i].current_value; |
630 |
|
/* Needn't to initialize "ptr->capability_value" because they are always 0. */ |
631 |
mb(); /* Avoid out-of-order execution. */ |
mb(); /* Avoid out-of-order execution. */ |
632 |
profile_ptr[profile] = ptr; |
profile_ptr[profile] = ptr; |
633 |
} |
} |
636 |
return ptr; |
return ptr; |
637 |
} |
} |
638 |
|
|
|
/* #define ALT_EXEC */ |
|
|
|
|
639 |
static int SetProfile(struct io_buffer *head) |
static int SetProfile(struct io_buffer *head) |
640 |
{ |
{ |
641 |
char *data = head->write_buf; |
char *data = head->write_buf; |
642 |
unsigned int i, value; |
unsigned int i, value; |
643 |
char *cp; |
char *cp; |
644 |
struct profile *profile; |
struct profile *profile; |
|
if (!isRoot()) return -EPERM; |
|
645 |
i = simple_strtoul(data, &cp, 10); |
i = simple_strtoul(data, &cp, 10); |
646 |
if (data != cp) { |
if (data != cp) { |
647 |
if (*cp != '-') return -EINVAL; |
if (*cp != '-') return -EINVAL; |
657 |
profile->comment = SaveName(cp + 1); |
profile->comment = SaveName(cp + 1); |
658 |
return 0; |
return 0; |
659 |
} |
} |
|
#ifdef ALT_EXEC |
|
660 |
#ifdef CONFIG_TOMOYO |
#ifdef CONFIG_TOMOYO |
661 |
if (strcmp(data, ccs_control_array[CCS_TOMOYO_ALT_EXEC].keyword) == 0) { |
if (strcmp(data, ccs_control_array[CCS_TOMOYO_ALT_EXEC].keyword) == 0) { |
662 |
cp++; |
cp++; |
665 |
return 0; |
return 0; |
666 |
} |
} |
667 |
#endif |
#endif |
|
#endif |
|
|
if (sscanf(cp + 1, "%u", &value) != 1) return -EINVAL; |
|
668 |
#ifdef CONFIG_TOMOYO |
#ifdef CONFIG_TOMOYO |
669 |
if (strncmp(data, KEYWORD_MAC_FOR_CAPABILITY, KEYWORD_MAC_FOR_CAPABILITY_LEN) == 0) { |
if (strncmp(data, KEYWORD_MAC_FOR_CAPABILITY, KEYWORD_MAC_FOR_CAPABILITY_LEN) == 0) { |
670 |
return SetCapabilityStatus(data + KEYWORD_MAC_FOR_CAPABILITY_LEN, value, i); |
if (sscanf(cp + 1, "%u", &value) != 1) { |
671 |
|
for (i = 0; i < 4; i++) { |
672 |
|
if (strcmp(cp + 1, mode_4[i])) continue; |
673 |
|
value = i; |
674 |
|
break; |
675 |
|
} |
676 |
|
if (i == 4) return -EINVAL; |
677 |
|
} |
678 |
|
if (value > 3) value = 3; |
679 |
|
data += KEYWORD_MAC_FOR_CAPABILITY_LEN; |
680 |
|
for (i = 0; i < TOMOYO_MAX_CAPABILITY_INDEX; i++) { |
681 |
|
if (strcmp(data, capability_control_keyword[i])) continue; |
682 |
|
profile->capability_value[i] = value; |
683 |
|
return 0; |
684 |
|
} |
685 |
|
return -EINVAL; |
686 |
} |
} |
687 |
#endif |
#endif |
688 |
for (i = 0; i < CCS_MAX_CONTROL_INDEX; i++) { |
for (i = 0; i < CCS_MAX_CONTROL_INDEX; i++) { |
689 |
if (strcmp(data, ccs_control_array[i].keyword)) continue; |
if (strcmp(data, ccs_control_array[i].keyword)) continue; |
690 |
if (value > ccs_control_array[i].max_value) value = ccs_control_array[i].max_value; |
if (sscanf(cp + 1, "%u", &value) != 1) { |
691 |
|
int j; |
692 |
|
const char **modes; |
693 |
|
switch (i) { |
694 |
|
case CCS_SAKURA_RESTRICT_AUTOBIND: |
695 |
|
case CCS_TOMOYO_VERBOSE: |
696 |
|
case CCS_ALLOW_ENFORCE_GRACE: |
697 |
|
modes = mode_2; |
698 |
|
break; |
699 |
|
default: |
700 |
|
modes = mode_4; |
701 |
|
break; |
702 |
|
} |
703 |
|
for (j = 0; j < 4; j++) { |
704 |
|
if (strcmp(cp + 1, modes[j])) continue; |
705 |
|
value = j; |
706 |
|
break; |
707 |
|
} |
708 |
|
if (j == 4) return -EINVAL; |
709 |
|
} else if (value > ccs_control_array[i].max_value) { |
710 |
|
value = ccs_control_array[i].max_value; |
711 |
|
} |
712 |
|
switch (i) { |
713 |
|
case CCS_SAKURA_DENY_CONCEAL_MOUNT: |
714 |
|
case CCS_SAKURA_RESTRICT_UNMOUNT: |
715 |
|
if (value == 1) value = 2; /* learning mode is not supported. */ |
716 |
|
} |
717 |
profile->value[i] = value; |
profile->value[i] = value; |
718 |
return 0; |
return 0; |
719 |
} |
} |
722 |
|
|
723 |
static int ReadProfile(struct io_buffer *head) |
static int ReadProfile(struct io_buffer *head) |
724 |
{ |
{ |
725 |
if (!head->read_eof) { |
int step; |
726 |
if (!isRoot()) return -EPERM; |
if (head->read_eof) return 0; |
727 |
if (!head->read_var2) { |
for (step = head->read_step; step < MAX_PROFILES * (CCS_MAX_CONTROL_INDEX + TOMOYO_MAX_CAPABILITY_INDEX); step++) { |
728 |
int step; |
const int i = step / (CCS_MAX_CONTROL_INDEX + TOMOYO_MAX_CAPABILITY_INDEX), j = step % (CCS_MAX_CONTROL_INDEX + TOMOYO_MAX_CAPABILITY_INDEX); |
729 |
for (step = head->read_step; step < MAX_PROFILES * CCS_MAX_CONTROL_INDEX; step++) { |
const struct profile *profile = profile_ptr[i]; |
730 |
const int i = step / CCS_MAX_CONTROL_INDEX, j = step % CCS_MAX_CONTROL_INDEX; |
head->read_step = step; |
731 |
const struct profile *profile = profile_ptr[i]; |
if (!profile) continue; |
732 |
head->read_step = step; |
switch (j) { |
733 |
if (!profile) continue; |
case -1: /* Dummy */ |
|
switch (j) { |
|
|
case -1: /* Dummy */ |
|
734 |
#ifndef CONFIG_SAKURA |
#ifndef CONFIG_SAKURA |
735 |
case CCS_SAKURA_DENY_CONCEAL_MOUNT: |
case CCS_SAKURA_DENY_CONCEAL_MOUNT: |
736 |
case CCS_SAKURA_RESTRICT_CHROOT: |
case CCS_SAKURA_RESTRICT_CHROOT: |
737 |
case CCS_SAKURA_RESTRICT_MOUNT: |
case CCS_SAKURA_RESTRICT_MOUNT: |
738 |
case CCS_SAKURA_RESTRICT_UNMOUNT: |
case CCS_SAKURA_RESTRICT_UNMOUNT: |
739 |
case CCS_SAKURA_RESTRICT_PIVOT_ROOT: |
case CCS_SAKURA_RESTRICT_PIVOT_ROOT: |
740 |
case CCS_SAKURA_RESTRICT_AUTOBIND: |
case CCS_SAKURA_RESTRICT_AUTOBIND: |
741 |
#endif |
#endif |
742 |
#ifndef CONFIG_TOMOYO |
#ifndef CONFIG_TOMOYO |
743 |
case CCS_TOMOYO_MAC_FOR_FILE: |
case CCS_TOMOYO_MAC_FOR_FILE: |
744 |
case CCS_TOMOYO_MAC_FOR_ARGV0: |
case CCS_TOMOYO_MAC_FOR_ARGV0: |
745 |
case CCS_TOMOYO_MAC_FOR_ENV: |
case CCS_TOMOYO_MAC_FOR_ENV: |
746 |
case CCS_TOMOYO_MAC_FOR_NETWORK: |
case CCS_TOMOYO_MAC_FOR_NETWORK: |
747 |
case CCS_TOMOYO_MAC_FOR_SIGNAL: |
case CCS_TOMOYO_MAC_FOR_SIGNAL: |
748 |
case CCS_TOMOYO_MAX_ACCEPT_ENTRY: |
case CCS_TOMOYO_MAX_ACCEPT_ENTRY: |
749 |
case CCS_TOMOYO_MAX_GRANT_LOG: |
case CCS_TOMOYO_MAX_GRANT_LOG: |
750 |
case CCS_TOMOYO_MAX_REJECT_LOG: |
case CCS_TOMOYO_MAX_REJECT_LOG: |
751 |
case CCS_TOMOYO_VERBOSE: |
case CCS_TOMOYO_VERBOSE: |
752 |
#endif |
#endif |
753 |
#ifndef ALT_EXEC |
continue; |
754 |
case CCS_TOMOYO_ALT_EXEC: |
} |
755 |
case CCS_SLEEP_PERIOD: |
if (j == CCS_PROFILE_COMMENT) { |
756 |
|
if (io_printf(head, "%u-%s=%s\n", i, ccs_control_array[CCS_PROFILE_COMMENT].keyword, profile->comment ? profile->comment->name : "")) break; |
757 |
|
} else if (j == CCS_TOMOYO_ALT_EXEC) { |
758 |
|
const struct path_info *alt_exec = profile->alt_exec; |
759 |
|
if (io_printf(head, "%u-%s=%s\n", i, ccs_control_array[CCS_TOMOYO_ALT_EXEC].keyword, alt_exec ? alt_exec->name : "")) break; |
760 |
|
} else if (j >= CCS_MAX_CONTROL_INDEX) { |
761 |
|
#ifdef CONFIG_TOMOYO |
762 |
|
const int k = j - CCS_MAX_CONTROL_INDEX; |
763 |
|
if (io_printf(head, "%u-" KEYWORD_MAC_FOR_CAPABILITY "%s=%s\n", i, capability_control_keyword[k], mode_4[profile->capability_value[k]])) break; |
764 |
#endif |
#endif |
765 |
continue; |
} else { |
766 |
} |
const unsigned int value = profile->value[j]; |
767 |
if (j == CCS_PROFILE_COMMENT) { |
const char **modes = NULL; |
768 |
if (io_printf(head, "%u-%s=%s\n", i, ccs_control_array[CCS_PROFILE_COMMENT].keyword, profile->comment ? profile->comment->name : "")) break; |
switch (ccs_control_array[j].max_value) { |
769 |
} else if (j == CCS_TOMOYO_ALT_EXEC) { |
case 3: |
770 |
const struct path_info *alt_exec = profile->alt_exec; |
modes = mode_4; |
771 |
if (io_printf(head, "%u-%s=%s\n", i, ccs_control_array[CCS_TOMOYO_ALT_EXEC].keyword, alt_exec ? alt_exec->name : "")) break; |
break; |
772 |
} else { |
case 1: |
773 |
if (io_printf(head, "%u-%s=%u\n", i, ccs_control_array[j].keyword, profile->value[j])) break; |
modes = mode_2; |
774 |
} |
break; |
775 |
} |
} |
776 |
if (step == MAX_PROFILES * CCS_MAX_CONTROL_INDEX) { |
if (modes) { |
777 |
head->read_var2 = (void *) ""; |
if (io_printf(head, "%u-%s=%s\n", i, ccs_control_array[j].keyword, modes[value])) break; |
778 |
head->read_step = 0; |
} else { |
779 |
|
if (io_printf(head, "%u-%s=%u\n", i, ccs_control_array[j].keyword, value)) break; |
780 |
} |
} |
781 |
} |
} |
|
if (head->read_var2) { |
|
|
#ifdef CONFIG_TOMOYO |
|
|
if (ReadCapabilityStatus(head) == 0) |
|
|
#endif |
|
|
head->read_eof = 1; |
|
|
} |
|
782 |
} |
} |
783 |
|
if (step == MAX_PROFILES * (CCS_MAX_CONTROL_INDEX + TOMOYO_MAX_CAPABILITY_INDEX)) head->read_eof = true; |
784 |
return 0; |
return 0; |
785 |
} |
} |
786 |
|
|
801 |
static DEFINE_MUTEX(lock); |
static DEFINE_MUTEX(lock); |
802 |
const struct path_info *saved_manager; |
const struct path_info *saved_manager; |
803 |
int error = -ENOMEM; |
int error = -ENOMEM; |
804 |
bool is_domain = 0; |
bool is_domain = false; |
|
if (!isRoot()) return -EPERM; |
|
805 |
if (IsDomainDef(manager)) { |
if (IsDomainDef(manager)) { |
806 |
if (!IsCorrectDomain(manager, __FUNCTION__)) return -EINVAL; |
if (!IsCorrectDomain(manager, __FUNCTION__)) return -EINVAL; |
807 |
is_domain = 1; |
is_domain = true; |
808 |
} else { |
} else { |
809 |
if (!IsCorrectPath(manager, 1, -1, -1, __FUNCTION__)) return -EINVAL; |
if (!IsCorrectPath(manager, 1, -1, -1, __FUNCTION__)) return -EINVAL; |
810 |
} |
} |
835 |
static int AddManagerPolicy(struct io_buffer *head) |
static int AddManagerPolicy(struct io_buffer *head) |
836 |
{ |
{ |
837 |
const char *data = head->write_buf; |
const char *data = head->write_buf; |
838 |
bool is_delete = 0; |
bool is_delete = false; |
|
if (!isRoot()) return -EPERM; |
|
839 |
if (strncmp(data, KEYWORD_DELETE, KEYWORD_DELETE_LEN) == 0) { |
if (strncmp(data, KEYWORD_DELETE, KEYWORD_DELETE_LEN) == 0) { |
840 |
data += KEYWORD_DELETE_LEN; |
data += KEYWORD_DELETE_LEN; |
841 |
is_delete = 1; |
is_delete = true; |
842 |
|
} |
843 |
|
if (strcmp(data, "manage_by_non_root") == 0) { |
844 |
|
manage_by_non_root = is_delete; |
845 |
|
return 0; |
846 |
} |
} |
847 |
return AddManagerEntry(data, is_delete); |
return AddManagerEntry(data, is_delete); |
848 |
} |
} |
851 |
{ |
{ |
852 |
struct list1_head *pos; |
struct list1_head *pos; |
853 |
if (head->read_eof) return 0; |
if (head->read_eof) return 0; |
|
if (!isRoot()) return -EPERM; |
|
854 |
list1_for_each_cookie(pos, head->read_var2, &policy_manager_list) { |
list1_for_each_cookie(pos, head->read_var2, &policy_manager_list) { |
855 |
struct policy_manager_entry *ptr; |
struct policy_manager_entry *ptr; |
856 |
ptr = list1_entry(pos, struct policy_manager_entry, list); |
ptr = list1_entry(pos, struct policy_manager_entry, list); |
857 |
if (ptr->is_deleted) continue; |
if (ptr->is_deleted) continue; |
858 |
if (io_printf(head, "%s\n", ptr->manager->name)) return 0; |
if (io_printf(head, "%s\n", ptr->manager->name)) return 0; |
859 |
} |
} |
860 |
head->read_eof = 1; |
head->read_eof = true; |
861 |
return 0; |
return 0; |
862 |
} |
} |
863 |
|
|
864 |
/* Check whether the current process is a policy manager. */ |
/* Check whether the current process is a policy manager. */ |
865 |
static int IsPolicyManager(void) |
static bool IsPolicyManager(void) |
866 |
{ |
{ |
867 |
struct policy_manager_entry *ptr; |
struct policy_manager_entry *ptr; |
868 |
const char *exe; |
const char *exe; |
869 |
const struct path_info *domainname = current->domain_info->domainname; |
const struct task_struct *task = current; |
870 |
bool found = 0; |
const struct path_info *domainname = task->domain_info->domainname; |
871 |
if (!sbin_init_started) return 1; |
bool found = false; |
872 |
|
if (!sbin_init_started) return true; |
873 |
|
if (!manage_by_non_root && (task->uid || task->euid)) return false; |
874 |
list1_for_each_entry(ptr, &policy_manager_list, list) { |
list1_for_each_entry(ptr, &policy_manager_list, list) { |
875 |
if (!ptr->is_deleted && ptr->is_domain && !pathcmp(domainname, ptr->manager)) return 1; |
if (!ptr->is_deleted && ptr->is_domain && !pathcmp(domainname, ptr->manager)) return true; |
876 |
} |
} |
877 |
if ((exe = GetEXE()) == NULL) return 0; |
if ((exe = GetEXE()) == NULL) return false; |
878 |
list1_for_each_entry(ptr, &policy_manager_list, list) { |
list1_for_each_entry(ptr, &policy_manager_list, list) { |
879 |
if (!ptr->is_deleted && !ptr->is_domain && !strcmp(exe, ptr->manager->name)) { |
if (!ptr->is_deleted && !ptr->is_domain && !strcmp(exe, ptr->manager->name)) { |
880 |
found = 1; |
found = true; |
881 |
break; |
break; |
882 |
} |
} |
883 |
} |
} |
903 |
if (cp) { |
if (cp) { |
904 |
while ((cp2 = strstr(cp + 3, " if ")) != NULL) cp = cp2; |
while ((cp2 = strstr(cp + 3, " if ")) != NULL) cp = cp2; |
905 |
*cp++ = '\0'; |
*cp++ = '\0'; |
906 |
|
} else if ((cp = strstr(data, " ; set ")) != NULL) { |
907 |
|
*cp++ = '\0'; |
908 |
} |
} |
909 |
return cp; |
return cp; |
910 |
} |
} |
913 |
{ |
{ |
914 |
char *data = head->write_buf; |
char *data = head->write_buf; |
915 |
struct domain_info *domain = head->write_var1; |
struct domain_info *domain = head->write_var1; |
916 |
bool is_delete = 0, is_select = 0, is_undelete = 0; |
bool is_delete = false, is_select = false, is_undelete = false; |
917 |
unsigned int profile; |
unsigned int profile; |
918 |
const struct condition_list *cond = NULL; |
const struct condition_list *cond = NULL; |
919 |
char *cp; |
char *cp; |
|
if (!isRoot()) return -EPERM; |
|
920 |
if (strncmp(data, KEYWORD_DELETE, KEYWORD_DELETE_LEN) == 0) { |
if (strncmp(data, KEYWORD_DELETE, KEYWORD_DELETE_LEN) == 0) { |
921 |
data += KEYWORD_DELETE_LEN; |
data += KEYWORD_DELETE_LEN; |
922 |
is_delete = 1; |
is_delete = true; |
923 |
} else if (strncmp(data, KEYWORD_SELECT, KEYWORD_SELECT_LEN) == 0) { |
} else if (strncmp(data, KEYWORD_SELECT, KEYWORD_SELECT_LEN) == 0) { |
924 |
data += KEYWORD_SELECT_LEN; |
data += KEYWORD_SELECT_LEN; |
925 |
is_select = 1; |
is_select = true; |
926 |
} else if (strncmp(data, KEYWORD_UNDELETE, KEYWORD_UNDELETE_LEN) == 0) { |
} else if (strncmp(data, KEYWORD_UNDELETE, KEYWORD_UNDELETE_LEN) == 0) { |
927 |
data += KEYWORD_UNDELETE_LEN; |
data += KEYWORD_UNDELETE_LEN; |
928 |
is_undelete = 1; |
is_undelete = true; |
929 |
} |
} |
|
UpdateCounter(CCS_UPDATES_COUNTER_DOMAIN_POLICY); |
|
930 |
if (IsDomainDef(data)) { |
if (IsDomainDef(data)) { |
931 |
if (is_delete) { |
if (is_delete) { |
932 |
DeleteDomain(data); |
DeleteDomain(data); |
939 |
domain = FindOrAssignNewDomain(data, 0); |
domain = FindOrAssignNewDomain(data, 0); |
940 |
} |
} |
941 |
head->write_var1 = domain; |
head->write_var1 = domain; |
942 |
|
UpdateCounter(CCS_UPDATES_COUNTER_DOMAIN_POLICY); |
943 |
return 0; |
return 0; |
944 |
} |
} |
945 |
if (!domain) return -EINVAL; |
if (!domain) return -EINVAL; |
948 |
if (profile_ptr[profile] || !sbin_init_started) domain->profile = (u8) profile; |
if (profile_ptr[profile] || !sbin_init_started) domain->profile = (u8) profile; |
949 |
return 0; |
return 0; |
950 |
} |
} |
951 |
|
if (strcmp(data, KEYWORD_IGNORE_GLOBAL_ALLOW_READ) == 0) { |
952 |
|
if (!is_delete) domain->flags |= DOMAIN_FLAGS_IGNORE_GLOBAL_ALLOW_READ; |
953 |
|
else domain->flags &= ~DOMAIN_FLAGS_IGNORE_GLOBAL_ALLOW_READ; |
954 |
|
return 0; |
955 |
|
} |
956 |
|
if (strcmp(data, KEYWORD_IGNORE_GLOBAL_ALLOW_ENV) == 0) { |
957 |
|
if (!is_delete) domain->flags |= DOMAIN_FLAGS_IGNORE_GLOBAL_ALLOW_ENV; |
958 |
|
else domain->flags &= ~DOMAIN_FLAGS_IGNORE_GLOBAL_ALLOW_ENV; |
959 |
|
return 0; |
960 |
|
} |
961 |
|
if (strcmp(data, KEYWORD_FORCE_ALT_EXEC) == 0) { |
962 |
|
if (!is_delete) domain->flags |= DOMAIN_FLAGS_FORCE_ALT_EXEC; |
963 |
|
else domain->flags &= ~DOMAIN_FLAGS_FORCE_ALT_EXEC; |
964 |
|
return 0; |
965 |
|
} |
966 |
cp = FindConditionPart(data); |
cp = FindConditionPart(data); |
967 |
if (cp && (cond = FindOrAssignNewCondition(cp)) == NULL) return -EINVAL; |
if (cp && (cond = FindOrAssignNewCondition(cp)) == NULL) return -EINVAL; |
968 |
if (strncmp(data, KEYWORD_ALLOW_CAPABILITY, KEYWORD_ALLOW_CAPABILITY_LEN) == 0) { |
if (strncmp(data, KEYWORD_ALLOW_CAPABILITY, KEYWORD_ALLOW_CAPABILITY_LEN) == 0) { |
981 |
return -EINVAL; |
return -EINVAL; |
982 |
} |
} |
983 |
|
|
984 |
|
static bool print_single_path_acl(struct io_buffer *head, struct single_path_acl_record *ptr, const struct condition_list *cond) |
985 |
|
{ |
986 |
|
int pos; |
987 |
|
u8 bit; |
988 |
|
const bool b = ptr->u_is_group; |
989 |
|
const u16 perm = ptr->perm; |
990 |
|
for (bit = head->read_bit; bit < MAX_SINGLE_PATH_OPERATION; bit++) { |
991 |
|
const char *msg; |
992 |
|
if (!(perm & (1 << bit))) continue; |
993 |
|
/* Print "read/write" instead of "read" and "write". */ |
994 |
|
if ((bit == TYPE_READ_ACL || bit == TYPE_WRITE_ACL) && (perm & (1 << TYPE_READ_WRITE_ACL))) continue; |
995 |
|
msg = sp_operation2keyword(bit); |
996 |
|
pos = head->read_avail; |
997 |
|
if (b && io_printf(head, "allow_%s @%s ", msg, ptr->u.group->group_name->name)) goto out; |
998 |
|
if (!b && io_printf(head, "allow_%s %s ", msg, ptr->u.filename->name)) goto out; |
999 |
|
if (DumpCondition(head, cond)) goto out; |
1000 |
|
} |
1001 |
|
head->read_bit = 0; |
1002 |
|
return true; |
1003 |
|
out: |
1004 |
|
head->read_bit = bit; |
1005 |
|
head->read_avail = pos; |
1006 |
|
return false; |
1007 |
|
} |
1008 |
|
|
1009 |
|
static bool print_double_path_acl(struct io_buffer *head, struct double_path_acl_record *ptr, const struct condition_list *cond) |
1010 |
|
{ |
1011 |
|
int pos; |
1012 |
|
const bool b0 = ptr->u1_is_group, b1 = ptr->u2_is_group; |
1013 |
|
const u8 perm = ptr->perm; |
1014 |
|
u8 bit; |
1015 |
|
for (bit = head->read_bit; bit < MAX_DOUBLE_PATH_OPERATION; bit++) { |
1016 |
|
const char *msg; |
1017 |
|
if (!(perm & (1 << bit))) continue; |
1018 |
|
msg = dp_operation2keyword(bit); |
1019 |
|
pos = head->read_avail; |
1020 |
|
if (io_printf(head, "allow_%s ", msg)) goto out; |
1021 |
|
if (b0 && io_printf(head, "@%s ", ptr->u1.group1->group_name->name)) goto out; |
1022 |
|
if (!b0 && io_printf(head, "%s ", ptr->u1.filename1->name)) goto out; |
1023 |
|
if (b1 && io_printf(head, "@%s", ptr->u2.group2->group_name->name)) goto out; |
1024 |
|
if (!b1 && io_printf(head, "%s", ptr->u2.filename2->name)) goto out; |
1025 |
|
if (DumpCondition(head, cond)) goto out; |
1026 |
|
} |
1027 |
|
head->read_bit = 0; |
1028 |
|
return true; |
1029 |
|
out: |
1030 |
|
head->read_bit = bit; |
1031 |
|
head->read_avail = pos; |
1032 |
|
return false; |
1033 |
|
} |
1034 |
|
|
1035 |
|
static bool print_argv0_acl(struct io_buffer *head, struct argv0_acl_record *ptr, const struct condition_list *cond) |
1036 |
|
{ |
1037 |
|
int pos = head->read_avail; |
1038 |
|
if (io_printf(head, KEYWORD_ALLOW_ARGV0 "%s %s", |
1039 |
|
ptr->filename->name, ptr->argv0->name)) goto out; |
1040 |
|
if (DumpCondition(head, cond)) goto out; |
1041 |
|
return true; |
1042 |
|
out: |
1043 |
|
head->read_avail = pos; |
1044 |
|
return false; |
1045 |
|
} |
1046 |
|
|
1047 |
|
static bool print_env_acl(struct io_buffer *head, struct env_acl_record *ptr, const struct condition_list *cond) |
1048 |
|
{ |
1049 |
|
int pos = head->read_avail; |
1050 |
|
if (io_printf(head, KEYWORD_ALLOW_ENV "%s", ptr->env->name)) goto out; |
1051 |
|
if (DumpCondition(head, cond)) goto out; |
1052 |
|
return true; |
1053 |
|
out: |
1054 |
|
head->read_avail = pos; |
1055 |
|
return false; |
1056 |
|
} |
1057 |
|
|
1058 |
|
static bool print_capability_acl(struct io_buffer *head, struct capability_acl_record *ptr, const struct condition_list *cond) |
1059 |
|
{ |
1060 |
|
int pos = head->read_avail; |
1061 |
|
if (io_printf(head, KEYWORD_ALLOW_CAPABILITY "%s", cap_operation2keyword(ptr->operation))) goto out; |
1062 |
|
if (DumpCondition(head, cond)) goto out; |
1063 |
|
return true; |
1064 |
|
out: |
1065 |
|
head->read_avail = pos; |
1066 |
|
return false; |
1067 |
|
} |
1068 |
|
|
1069 |
|
static bool print_network_acl(struct io_buffer *head, struct ip_network_acl_record *ptr, const struct condition_list *cond) |
1070 |
|
{ |
1071 |
|
int pos = head->read_avail; |
1072 |
|
if (io_printf(head, KEYWORD_ALLOW_NETWORK "%s ", net_operation2keyword(ptr->operation_type))) goto out; |
1073 |
|
switch (ptr->record_type) { |
1074 |
|
case IP_RECORD_TYPE_ADDRESS_GROUP: |
1075 |
|
if (io_printf(head, "@%s", ptr->u.group->group_name->name)) goto out; |
1076 |
|
break; |
1077 |
|
case IP_RECORD_TYPE_IPv4: |
1078 |
|
{ |
1079 |
|
const u32 min_address = ptr->u.ipv4.min, max_address = ptr->u.ipv4.max; |
1080 |
|
if (io_printf(head, "%u.%u.%u.%u", HIPQUAD(min_address))) goto out; |
1081 |
|
if (min_address != max_address && io_printf(head, "-%u.%u.%u.%u", HIPQUAD(max_address))) goto out; |
1082 |
|
} |
1083 |
|
break; |
1084 |
|
case IP_RECORD_TYPE_IPv6: |
1085 |
|
{ |
1086 |
|
char buf[64]; |
1087 |
|
const struct in6_addr *min_address = ptr->u.ipv6.min, *max_address = ptr->u.ipv6.max; |
1088 |
|
print_ipv6(buf, sizeof(buf), min_address); |
1089 |
|
if (io_printf(head, "%s", buf)) goto out; |
1090 |
|
if (min_address != max_address) { |
1091 |
|
print_ipv6(buf, sizeof(buf), max_address); |
1092 |
|
if (io_printf(head, "-%s", buf)) goto out; |
1093 |
|
} |
1094 |
|
} |
1095 |
|
break; |
1096 |
|
} |
1097 |
|
{ |
1098 |
|
const u16 min_port = ptr->min_port, max_port = ptr->max_port; |
1099 |
|
if (io_printf(head, " %u", min_port)) goto out; |
1100 |
|
if (min_port != max_port && io_printf(head, "-%u", max_port)) goto out; |
1101 |
|
} |
1102 |
|
if (DumpCondition(head, cond)) goto out; |
1103 |
|
return true; |
1104 |
|
out: |
1105 |
|
head->read_avail = pos; |
1106 |
|
return false; |
1107 |
|
} |
1108 |
|
|
1109 |
|
static bool print_signal_acl(struct io_buffer *head, struct signal_acl_record *ptr, const struct condition_list *cond) |
1110 |
|
{ |
1111 |
|
int pos = head->read_avail; |
1112 |
|
if (io_printf(head, KEYWORD_ALLOW_SIGNAL "%u %s", ptr->sig, ptr->domainname->name)) goto out; |
1113 |
|
if (DumpCondition(head, cond)) goto out; |
1114 |
|
return true; |
1115 |
|
out: |
1116 |
|
head->read_avail = pos; |
1117 |
|
return false; |
1118 |
|
} |
1119 |
|
|
1120 |
static int ReadDomainPolicy(struct io_buffer *head) |
static int ReadDomainPolicy(struct io_buffer *head) |
1121 |
{ |
{ |
1122 |
struct list1_head *dpos; |
struct list1_head *dpos; |
1123 |
struct list1_head *apos; |
struct list1_head *apos; |
1124 |
if (head->read_eof) return 0; |
if (head->read_eof) return 0; |
1125 |
if (head->read_step == 0) { |
if (head->read_step == 0) head->read_step = 1; |
|
if (!isRoot()) return -EPERM; |
|
|
head->read_step = 1; |
|
|
} |
|
1126 |
list1_for_each_cookie(dpos, head->read_var1, &domain_list) { |
list1_for_each_cookie(dpos, head->read_var1, &domain_list) { |
1127 |
struct domain_info *domain; |
struct domain_info *domain; |
1128 |
domain = list1_entry(dpos, struct domain_info, list); |
domain = list1_entry(dpos, struct domain_info, list); |
1129 |
if (head->read_step != 1) goto acl_loop; |
if (head->read_step != 1) goto acl_loop; |
1130 |
if (domain->is_deleted) continue; |
if (domain->is_deleted) continue; |
1131 |
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; |
if (io_printf(head, "%s\n" KEYWORD_USE_PROFILE "%u\n%s\n%s%s%s", domain->domainname->name, domain->profile, domain->quota_warned ? "quota_exceeded\n" : "", domain->flags & DOMAIN_FLAGS_IGNORE_GLOBAL_ALLOW_READ ? KEYWORD_IGNORE_GLOBAL_ALLOW_READ "\n" : "", domain->flags & DOMAIN_FLAGS_IGNORE_GLOBAL_ALLOW_ENV ? KEYWORD_IGNORE_GLOBAL_ALLOW_ENV "\n" : "", domain->flags & DOMAIN_FLAGS_FORCE_ALT_EXEC ? KEYWORD_FORCE_ALT_EXEC "\n" : "")) return 0; |
1132 |
head->read_step = 2; |
head->read_step = 2; |
1133 |
acl_loop: ; |
acl_loop: ; |
1134 |
if (head->read_step == 3) goto tail_mark; |
if (head->read_step == 3) goto tail_mark; |
1135 |
list1_for_each_cookie(apos, head->read_var2, &domain->acl_info_list) { |
list1_for_each_cookie(apos, head->read_var2, &domain->acl_info_list) { |
1136 |
struct acl_info *ptr; |
struct acl_info *ptr; |
|
int pos; |
|
1137 |
u8 acl_type; |
u8 acl_type; |
1138 |
|
const struct condition_list *cond; |
1139 |
ptr = list1_entry(apos, struct acl_info, list); |
ptr = list1_entry(apos, struct acl_info, list); |
1140 |
if (ptr->is_deleted) continue; |
cond = GetConditionPart(ptr); |
1141 |
pos = head->read_avail; |
acl_type = ptr->type & ~ACL_WITH_CONDITION; |
1142 |
acl_type = ptr->type; |
if (acl_type & ACL_DELETED) { |
1143 |
if (acl_type == TYPE_FILE_ACL) { |
/* Deleted entry. */ |
1144 |
struct file_acl_record *ptr2 = container_of(ptr, struct file_acl_record, head); |
} else if (acl_type == TYPE_SINGLE_PATH_ACL) { |
1145 |
const unsigned char b = ptr2->u_is_group; |
if (!print_single_path_acl(head, container_of(ptr, struct single_path_acl_record, head), cond)) return 0; |
1146 |
if (io_printf(head, "%d %s%s", ptr2->perm, |
} else if (acl_type == TYPE_DOUBLE_PATH_ACL) { |
1147 |
b ? "@" : "", |
if (!print_double_path_acl(head, container_of(ptr, struct double_path_acl_record, head), cond)) return 0; |
|
b ? ptr2->u.group->group_name->name : ptr2->u.filename->name)) goto print_acl_rollback; |
|
1148 |
} else if (acl_type == TYPE_ARGV0_ACL) { |
} else if (acl_type == TYPE_ARGV0_ACL) { |
1149 |
struct argv0_acl_record *ptr2 = container_of(ptr, struct argv0_acl_record, head); |
if (!print_argv0_acl(head, container_of(ptr, struct argv0_acl_record, head), cond)) return 0; |
|
if (io_printf(head, KEYWORD_ALLOW_ARGV0 "%s %s", |
|
|
ptr2->filename->name, ptr2->argv0->name)) goto print_acl_rollback; |
|
1150 |
} else if (acl_type == TYPE_ENV_ACL) { |
} else if (acl_type == TYPE_ENV_ACL) { |
1151 |
struct env_acl_record *ptr2 = container_of(ptr, struct env_acl_record, head); |
if (!print_env_acl(head, container_of(ptr, struct env_acl_record, head), cond)) return 0; |
|
if (io_printf(head, KEYWORD_ALLOW_ENV "%s", ptr2->env->name)) goto print_acl_rollback; |
|
1152 |
} else if (acl_type == TYPE_CAPABILITY_ACL) { |
} else if (acl_type == TYPE_CAPABILITY_ACL) { |
1153 |
struct capability_acl_record *ptr2 = container_of(ptr, struct capability_acl_record, head); |
if (!print_capability_acl(head, container_of(ptr, struct capability_acl_record, head), cond)) return 0; |
|
if (io_printf(head, KEYWORD_ALLOW_CAPABILITY "%s", capability2keyword(ptr2->capability))) goto print_acl_rollback; |
|
1154 |
} else if (acl_type == TYPE_IP_NETWORK_ACL) { |
} else if (acl_type == TYPE_IP_NETWORK_ACL) { |
1155 |
struct ip_network_acl_record *ptr2 = container_of(ptr, struct ip_network_acl_record, head); |
if (!print_network_acl(head, container_of(ptr, struct ip_network_acl_record, head), cond)) return 0; |
|
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; |
|
|
} |
|
1156 |
} else if (acl_type == TYPE_SIGNAL_ACL) { |
} else if (acl_type == TYPE_SIGNAL_ACL) { |
1157 |
struct signal_acl_record *ptr2 = container_of(ptr, struct signal_acl_record, head); |
if (!print_signal_acl(head, container_of(ptr, struct signal_acl_record, head), cond)) return 0; |
|
if (io_printf(head, KEYWORD_ALLOW_SIGNAL "%u %s", ptr2->sig, ptr2->domainname->name)) goto print_acl_rollback; |
|
1158 |
} else { |
} else { |
1159 |
const char *keyword = acltype2keyword(acl_type); |
BUG(); |
|
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; |
|
1160 |
} |
} |
1161 |
} |
} |
1162 |
head->read_step = 3; |
head->read_step = 3; |
1164 |
if (io_printf(head, "\n")) return 0; |
if (io_printf(head, "\n")) return 0; |
1165 |
head->read_step = 1; |
head->read_step = 1; |
1166 |
} |
} |
1167 |
head->read_eof = 1; |
head->read_eof = true; |
1168 |
return 0; |
return 0; |
1169 |
} |
} |
1170 |
|
|
1176 |
char *cp = strchr(data, ' '); |
char *cp = strchr(data, ' '); |
1177 |
struct domain_info *domain; |
struct domain_info *domain; |
1178 |
unsigned int profile; |
unsigned int profile; |
|
if (!isRoot()) return -EPERM; |
|
1179 |
if (!cp) return -EINVAL; |
if (!cp) return -EINVAL; |
1180 |
*cp = '\0'; |
*cp = '\0'; |
1181 |
domain = FindDomain(cp + 1); |
domain = FindDomain(cp + 1); |
1189 |
{ |
{ |
1190 |
struct list1_head *pos; |
struct list1_head *pos; |
1191 |
if (head->read_eof) return 0; |
if (head->read_eof) return 0; |
|
if (!isRoot()) return -EPERM; |
|
1192 |
list1_for_each_cookie(pos, head->read_var1, &domain_list) { |
list1_for_each_cookie(pos, head->read_var1, &domain_list) { |
1193 |
struct domain_info *domain; |
struct domain_info *domain; |
1194 |
domain = list1_entry(pos, struct domain_info, list); |
domain = list1_entry(pos, struct domain_info, list); |
1195 |
if (domain->is_deleted) continue; |
if (domain->is_deleted) continue; |
1196 |
if (io_printf(head, "%u %s\n", domain->profile, domain->domainname->name)) return 0; |
if (io_printf(head, "%u %s\n", domain->profile, domain->domainname->name)) return 0; |
1197 |
} |
} |
1198 |
head->read_eof = 1; |
head->read_eof = true; |
1199 |
return 0; |
return 0; |
1200 |
} |
} |
1201 |
|
|
1202 |
static int WritePID(struct io_buffer *head) |
static int WritePID(struct io_buffer *head) |
1203 |
{ |
{ |
1204 |
head->read_step = (int) simple_strtoul(head->write_buf, NULL, 10); |
head->read_step = (int) simple_strtoul(head->write_buf, NULL, 10); |
1205 |
head->read_eof = 0; |
head->read_eof = false; |
1206 |
return 0; |
return 0; |
1207 |
} |
} |
1208 |
|
|
1219 |
read_unlock(&tasklist_lock); |
read_unlock(&tasklist_lock); |
1220 |
/***** CRITICAL SECTION END *****/ |
/***** CRITICAL SECTION END *****/ |
1221 |
if (domain) io_printf(head, "%d %u %s", pid, domain->profile, domain->domainname->name); |
if (domain) io_printf(head, "%d %u %s", pid, domain->profile, domain->domainname->name); |
1222 |
head->read_eof = 1; |
head->read_eof = true; |
1223 |
} |
} |
1224 |
return 0; |
return 0; |
1225 |
} |
} |
1231 |
static int AddExceptionPolicy(struct io_buffer *head) |
static int AddExceptionPolicy(struct io_buffer *head) |
1232 |
{ |
{ |
1233 |
char *data = head->write_buf; |
char *data = head->write_buf; |
1234 |
bool is_delete = 0; |
bool is_delete = false; |
|
if (!isRoot()) return -EPERM; |
|
1235 |
UpdateCounter(CCS_UPDATES_COUNTER_EXCEPTION_POLICY); |
UpdateCounter(CCS_UPDATES_COUNTER_EXCEPTION_POLICY); |
1236 |
if (strncmp(data, KEYWORD_DELETE, KEYWORD_DELETE_LEN) == 0) { |
if (strncmp(data, KEYWORD_DELETE, KEYWORD_DELETE_LEN) == 0) { |
1237 |
data += KEYWORD_DELETE_LEN; |
data += KEYWORD_DELETE_LEN; |
1238 |
is_delete = 1; |
is_delete = true; |
1239 |
} |
} |
1240 |
if (strncmp(data, KEYWORD_KEEP_DOMAIN, KEYWORD_KEEP_DOMAIN_LEN) == 0) { |
if (strncmp(data, KEYWORD_KEEP_DOMAIN, KEYWORD_KEEP_DOMAIN_LEN) == 0) { |
1241 |
return AddDomainKeeperPolicy(data + KEYWORD_KEEP_DOMAIN_LEN, 0, is_delete); |
return AddDomainKeeperPolicy(data + KEYWORD_KEEP_DOMAIN_LEN, 0, is_delete); |
1254 |
} else if (strncmp(data, KEYWORD_ALLOW_ENV, KEYWORD_ALLOW_ENV_LEN) == 0) { |
} else if (strncmp(data, KEYWORD_ALLOW_ENV, KEYWORD_ALLOW_ENV_LEN) == 0) { |
1255 |
return AddGloballyUsableEnvPolicy(data + KEYWORD_ALLOW_ENV_LEN, is_delete); |
return AddGloballyUsableEnvPolicy(data + KEYWORD_ALLOW_ENV_LEN, is_delete); |
1256 |
} else if (strncmp(data, KEYWORD_FILE_PATTERN, KEYWORD_FILE_PATTERN_LEN) == 0) { |
} else if (strncmp(data, KEYWORD_FILE_PATTERN, KEYWORD_FILE_PATTERN_LEN) == 0) { |
1257 |
return AddPatternPolicy(data + KEYWORD_FILE_PATTERN_LEN, is_delete); |
return AddFilePatternPolicy(data + KEYWORD_FILE_PATTERN_LEN, is_delete); |
1258 |
} else if (strncmp(data, KEYWORD_PATH_GROUP, KEYWORD_PATH_GROUP_LEN) == 0) { |
} else if (strncmp(data, KEYWORD_PATH_GROUP, KEYWORD_PATH_GROUP_LEN) == 0) { |
1259 |
return AddPathGroupPolicy(data + KEYWORD_PATH_GROUP_LEN, is_delete); |
return AddPathGroupPolicy(data + KEYWORD_PATH_GROUP_LEN, is_delete); |
1260 |
} else if (strncmp(data, KEYWORD_DENY_REWRITE, KEYWORD_DENY_REWRITE_LEN) == 0) { |
} else if (strncmp(data, KEYWORD_DENY_REWRITE, KEYWORD_DENY_REWRITE_LEN) == 0) { |
1270 |
if (!head->read_eof) { |
if (!head->read_eof) { |
1271 |
switch (head->read_step) { |
switch (head->read_step) { |
1272 |
case 0: |
case 0: |
|
if (!isRoot()) return -EPERM; |
|
1273 |
head->read_var2 = NULL; head->read_step = 1; |
head->read_var2 = NULL; head->read_step = 1; |
1274 |
case 1: |
case 1: |
1275 |
if (ReadDomainKeeperPolicy(head)) break; |
if (ReadDomainKeeperPolicy(head)) break; |
1290 |
if (ReadAggregatorPolicy(head)) break; |
if (ReadAggregatorPolicy(head)) break; |
1291 |
head->read_var2 = NULL; head->read_step = 7; |
head->read_var2 = NULL; head->read_step = 7; |
1292 |
case 7: |
case 7: |
1293 |
if (ReadPatternPolicy(head)) break; |
if (ReadFilePatternPolicy(head)) break; |
1294 |
head->read_var2 = NULL; head->read_step = 8; |
head->read_var2 = NULL; head->read_step = 8; |
1295 |
case 8: |
case 8: |
1296 |
if (ReadNoRewritePolicy(head)) break; |
if (ReadNoRewritePolicy(head)) break; |
1300 |
head->read_var1 = head->read_var2 = NULL; head->read_step = 10; |
head->read_var1 = head->read_var2 = NULL; head->read_step = 10; |
1301 |
case 10: |
case 10: |
1302 |
if (ReadAddressGroupPolicy(head)) break; |
if (ReadAddressGroupPolicy(head)) break; |
1303 |
head->read_eof = 1; |
head->read_eof = true; |
1304 |
break; |
break; |
1305 |
default: |
default: |
1306 |
return -EINVAL; |
return -EINVAL; |
1318 |
static int AddSystemPolicy(struct io_buffer *head) |
static int AddSystemPolicy(struct io_buffer *head) |
1319 |
{ |
{ |
1320 |
char *data = head->write_buf; |
char *data = head->write_buf; |
1321 |
bool is_delete = 0; |
bool is_delete = false; |
|
if (!isRoot()) return -EPERM; |
|
1322 |
UpdateCounter(CCS_UPDATES_COUNTER_SYSTEM_POLICY); |
UpdateCounter(CCS_UPDATES_COUNTER_SYSTEM_POLICY); |
1323 |
if (strncmp(data, KEYWORD_DELETE, KEYWORD_DELETE_LEN) == 0) { |
if (strncmp(data, KEYWORD_DELETE, KEYWORD_DELETE_LEN) == 0) { |
1324 |
data += KEYWORD_DELETE_LEN; |
data += KEYWORD_DELETE_LEN; |
1325 |
is_delete = 1; |
is_delete = true; |
1326 |
} |
} |
1327 |
if (strncmp(data, KEYWORD_ALLOW_MOUNT, KEYWORD_ALLOW_MOUNT_LEN) == 0) |
if (strncmp(data, KEYWORD_ALLOW_MOUNT, KEYWORD_ALLOW_MOUNT_LEN) == 0) |
1328 |
return AddMountPolicy(data + KEYWORD_ALLOW_MOUNT_LEN, is_delete); |
return AddMountPolicy(data + KEYWORD_ALLOW_MOUNT_LEN, is_delete); |
1342 |
if (!head->read_eof) { |
if (!head->read_eof) { |
1343 |
switch (head->read_step) { |
switch (head->read_step) { |
1344 |
case 0: |
case 0: |
|
if (!isRoot()) return -EPERM; |
|
1345 |
head->read_var2 = NULL; head->read_step = 1; |
head->read_var2 = NULL; head->read_step = 1; |
1346 |
case 1: |
case 1: |
1347 |
if (ReadMountPolicy(head)) break; |
if (ReadMountPolicy(head)) break; |
1357 |
head->read_var2 = NULL; head->read_step = 5; |
head->read_var2 = NULL; head->read_step = 5; |
1358 |
case 5: |
case 5: |
1359 |
if (ReadReservedPortPolicy(head)) break; |
if (ReadReservedPortPolicy(head)) break; |
1360 |
head->read_eof = 1; |
head->read_eof = true; |
1361 |
break; |
break; |
1362 |
default: |
default: |
1363 |
return -EINVAL; |
return -EINVAL; |
1370 |
|
|
1371 |
/************************* POLICY LOADER *************************/ |
/************************* POLICY LOADER *************************/ |
1372 |
|
|
1373 |
static int profile_loaded = 0; |
static bool profile_loaded = false; |
1374 |
|
|
1375 |
static const char *ccs_loader = NULL; |
static const char *ccs_loader = NULL; |
1376 |
|
|
1405 |
printk("Not activating Mandatory Access Control now since %s doesn't exist.\n", ccs_loader); |
printk("Not activating Mandatory Access Control now since %s doesn't exist.\n", ccs_loader); |
1406 |
return; |
return; |
1407 |
} |
} |
1408 |
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25) |
1409 |
|
path_put(&nd.path); |
1410 |
|
#else |
1411 |
path_release(&nd); |
path_release(&nd); |
1412 |
|
#endif |
1413 |
} |
} |
1414 |
if (!profile_loaded) { |
if (!profile_loaded) { |
1415 |
char *argv[2], *envp[3]; |
char *argv[2], *envp[3]; |
1430 |
} |
} |
1431 |
} |
} |
1432 |
#ifdef CONFIG_SAKURA |
#ifdef CONFIG_SAKURA |
1433 |
printk("SAKURA: 1.5.3-pre 2007/12/18\n"); |
printk("SAKURA: 1.6.0-pre 2008/03/04\n"); |
1434 |
#endif |
#endif |
1435 |
#ifdef CONFIG_TOMOYO |
#ifdef CONFIG_TOMOYO |
1436 |
printk("TOMOYO: 1.5.3-pre 2007/12/17\n"); |
printk("TOMOYO: 1.6.0-pre 2008/03/04\n"); |
1437 |
#endif |
#endif |
|
//if (!profile_loaded) panic("No profiles loaded. Run policy loader using 'init=' option.\n"); |
|
1438 |
printk("Mandatory Access Control activated.\n"); |
printk("Mandatory Access Control activated.\n"); |
1439 |
sbin_init_started = 1; |
sbin_init_started = true; |
1440 |
ccs_log_level = KERN_WARNING; |
ccs_log_level = KERN_WARNING; |
1441 |
{ /* Check all profiles currently assigned to domains are defined. */ |
{ /* Check all profiles currently assigned to domains are defined. */ |
1442 |
struct domain_info *domain; |
struct domain_info *domain; |
1447 |
} |
} |
1448 |
} |
} |
1449 |
|
|
|
|
|
1450 |
/************************* MAC Decision Delayer *************************/ |
/************************* MAC Decision Delayer *************************/ |
1451 |
|
|
1452 |
static DECLARE_WAIT_QUEUE_HEAD(query_wait); |
static DECLARE_WAIT_QUEUE_HEAD(query_wait); |
1473 |
static unsigned int serial = 0; |
static unsigned int serial = 0; |
1474 |
struct query_entry *query_entry; |
struct query_entry *query_entry; |
1475 |
if (!CheckCCSFlags(CCS_ALLOW_ENFORCE_GRACE) || !atomic_read(&queryd_watcher)) { |
if (!CheckCCSFlags(CCS_ALLOW_ENFORCE_GRACE) || !atomic_read(&queryd_watcher)) { |
|
#ifdef ALT_EXEC |
|
1476 |
if ((current->tomoyo_flags & CCS_DONT_SLEEP_ON_ENFORCE_ERROR) == 0) { |
if ((current->tomoyo_flags & CCS_DONT_SLEEP_ON_ENFORCE_ERROR) == 0) { |
1477 |
int i; |
int i; |
1478 |
for (i = 0; i < CheckCCSFlags(CCS_SLEEP_PERIOD); i++) { |
for (i = 0; i < CheckCCSFlags(CCS_SLEEP_PERIOD); i++) { |
1480 |
schedule_timeout(HZ / 10); |
schedule_timeout(HZ / 10); |
1481 |
} |
} |
1482 |
} |
} |
|
#endif |
|
1483 |
return -EPERM; |
return -EPERM; |
1484 |
} |
} |
1485 |
va_start(args, fmt); |
va_start(args, fmt); |
1537 |
|
|
1538 |
static int PollQuery(struct file *file, poll_table *wait) |
static int PollQuery(struct file *file, poll_table *wait) |
1539 |
{ |
{ |
1540 |
int found; |
bool found; |
1541 |
/***** CRITICAL SECTION START *****/ |
/***** CRITICAL SECTION START *****/ |
1542 |
spin_lock(&query_lock); |
spin_lock(&query_lock); |
1543 |
found = !list_empty(&query_list); |
found = !list_empty(&query_list); |
1673 |
counter[CCS_UPDATES_COUNTER_MANAGER], |
counter[CCS_UPDATES_COUNTER_MANAGER], |
1674 |
counter[CCS_UPDATES_COUNTER_GRANT_LOG], |
counter[CCS_UPDATES_COUNTER_GRANT_LOG], |
1675 |
counter[CCS_UPDATES_COUNTER_REJECT_LOG]); |
counter[CCS_UPDATES_COUNTER_REJECT_LOG]); |
1676 |
head->read_eof = 1; |
head->read_eof = true; |
1677 |
} |
} |
1678 |
return 0; |
return 0; |
1679 |
} |
} |
1681 |
static int ReadVersion(struct io_buffer *head) |
static int ReadVersion(struct io_buffer *head) |
1682 |
{ |
{ |
1683 |
if (!head->read_eof) { |
if (!head->read_eof) { |
1684 |
if (io_printf(head, "1.5.3-pre") == 0) head->read_eof = 1; |
if (io_printf(head, "1.6.0-pre") == 0) head->read_eof = true; |
1685 |
} |
} |
1686 |
return 0; |
return 0; |
1687 |
} |
} |
1690 |
{ |
{ |
1691 |
if (!head->read_eof) { |
if (!head->read_eof) { |
1692 |
const int shared = GetMemoryUsedForSaveName(), private = GetMemoryUsedForElements(), dynamic = GetMemoryUsedForDynamic(); |
const int shared = GetMemoryUsedForSaveName(), private = GetMemoryUsedForElements(), dynamic = GetMemoryUsedForDynamic(); |
1693 |
if (io_printf(head, "Shared: %10u\nPrivate: %10u\nDynamic: %10u\nTotal: %10u\n", shared, private, dynamic, shared + private + dynamic) == 0) head->read_eof = 1; |
if (io_printf(head, "Shared: %10u\nPrivate: %10u\nDynamic: %10u\nTotal: %10u\n", shared, private, dynamic, shared + private + dynamic) == 0) head->read_eof = true; |
1694 |
} |
} |
1695 |
return 0; |
return 0; |
1696 |
} |
} |
1699 |
{ |
{ |
1700 |
if (!head->read_eof) { |
if (!head->read_eof) { |
1701 |
io_printf(head, "%s", current->domain_info->domainname->name); |
io_printf(head, "%s", current->domain_info->domainname->name); |
1702 |
head->read_eof = 1; |
head->read_eof = true; |
1703 |
} |
} |
1704 |
return 0; |
return 0; |
1705 |
} |
} |
1706 |
|
|
1707 |
int CCS_OpenControl(const int type, struct file *file) |
int CCS_OpenControl(const u8 type, struct file *file) |
1708 |
{ |
{ |
1709 |
struct io_buffer *head = ccs_alloc(sizeof(*head)); |
struct io_buffer *head = ccs_alloc(sizeof(*head)); |
1710 |
if (!head) return -ENOMEM; |
if (!head) return -ENOMEM; |
1833 |
char *cp0 = head->write_buf; |
char *cp0 = head->write_buf; |
1834 |
if (!head->write) return -ENOSYS; |
if (!head->write) return -ENOSYS; |
1835 |
if (!access_ok(VERIFY_READ, buffer, buffer_len)) return -EFAULT; |
if (!access_ok(VERIFY_READ, buffer, buffer_len)) return -EFAULT; |
|
if (!isRoot()) return -EPERM; |
|
1836 |
if (head->write != WritePID && !IsPolicyManager()) { |
if (head->write != WritePID && !IsPolicyManager()) { |
1837 |
return -EPERM; /* Forbid updating policies for non manager programs. */ |
return -EPERM; /* Forbid updating policies for non manager programs. */ |
1838 |
} |
} |
1863 |
{ |
{ |
1864 |
struct io_buffer *head = file->private_data; |
struct io_buffer *head = file->private_data; |
1865 |
if (head->write == WriteAnswer) atomic_dec(&queryd_watcher); |
if (head->write == WriteAnswer) atomic_dec(&queryd_watcher); |
1866 |
else if (head->read == ReadMemoryCounter) profile_loaded = 1; |
else if (head->read == ReadMemoryCounter) profile_loaded = true; |
1867 |
ccs_free(head->read_buf); head->read_buf = NULL; |
ccs_free(head->read_buf); head->read_buf = NULL; |
1868 |
ccs_free(head->write_buf); head->write_buf = NULL; |
ccs_free(head->write_buf); head->write_buf = NULL; |
1869 |
ccs_free(head); head = NULL; |
ccs_free(head); head = NULL; |
1870 |
file->private_data = NULL; |
file->private_data = NULL; |
1871 |
return 0; |
return 0; |
1872 |
} |
} |
1873 |
|
|
1874 |
|
void *alloc_acl_element(const u8 acl_type, const struct condition_list *condition) |
1875 |
|
{ |
1876 |
|
int len; |
1877 |
|
struct acl_info *ptr; |
1878 |
|
switch (acl_type) { |
1879 |
|
case TYPE_SINGLE_PATH_ACL: |
1880 |
|
len = sizeof(struct single_path_acl_record); |
1881 |
|
break; |
1882 |
|
case TYPE_DOUBLE_PATH_ACL: |
1883 |
|
len = sizeof(struct double_path_acl_record); |
1884 |
|
break; |
1885 |
|
case TYPE_ARGV0_ACL: |
1886 |
|
len = sizeof(struct argv0_acl_record); |
1887 |
|
break; |
1888 |
|
case TYPE_ENV_ACL: |
1889 |
|
len = sizeof(struct env_acl_record); |
1890 |
|
break; |
1891 |
|
case TYPE_CAPABILITY_ACL: |
1892 |
|
len = sizeof(struct capability_acl_record); |
1893 |
|
break; |
1894 |
|
case TYPE_IP_NETWORK_ACL: |
1895 |
|
len = sizeof(struct ip_network_acl_record); |
1896 |
|
break; |
1897 |
|
case TYPE_SIGNAL_ACL: |
1898 |
|
len = sizeof(struct signal_acl_record); |
1899 |
|
break; |
1900 |
|
default: |
1901 |
|
return NULL; |
1902 |
|
} |
1903 |
|
if (!condition) len -= sizeof(ptr->cond); |
1904 |
|
ptr = alloc_element(len); |
1905 |
|
if (!ptr) return NULL; |
1906 |
|
if (condition) { |
1907 |
|
ptr->cond = condition; |
1908 |
|
ptr->type = acl_type | ACL_WITH_CONDITION; |
1909 |
|
return ptr; |
1910 |
|
} |
1911 |
|
ptr = (void *) (((u8 *) ptr) - sizeof(ptr->cond)); |
1912 |
|
ptr->type = acl_type; |
1913 |
|
return ptr; |
1914 |
|
} |
1915 |
|
|
1916 |
|
const struct condition_list *GetConditionPart(const struct acl_info *acl) |
1917 |
|
{ |
1918 |
|
return (acl->type & ACL_WITH_CONDITION) ? acl->cond : NULL; |
1919 |
|
} |