3 |
* |
* |
4 |
* Copyright (C) 2005-2009 NTT DATA CORPORATION |
* Copyright (C) 2005-2009 NTT DATA CORPORATION |
5 |
* |
* |
6 |
* Version: 1.7.0-pre 2009/08/24 |
* Version: 1.7.1-pre 2009/10/16 |
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. |
12 |
|
|
13 |
#include "internal.h" |
#include "internal.h" |
14 |
|
|
15 |
|
static struct ccs_profile ccs_default_profile = { |
16 |
|
.learning = &ccs_default_profile.preference, |
17 |
|
.permissive = &ccs_default_profile.preference, |
18 |
|
.enforcing = &ccs_default_profile.preference, |
19 |
|
.audit = &ccs_default_profile.preference, |
20 |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
21 |
|
.preference.audit_max_grant_log = CONFIG_CCSECURITY_MAX_GRANT_LOG, |
22 |
|
.preference.audit_max_reject_log = CONFIG_CCSECURITY_MAX_REJECT_LOG, |
23 |
|
#endif |
24 |
|
.preference.audit_task_info = true, |
25 |
|
.preference.audit_path_info = true, |
26 |
|
.preference.enforcing_penalty = 0, |
27 |
|
.preference.enforcing_verbose = true, |
28 |
|
.preference.learning_max_entry = CONFIG_CCSECURITY_MAX_ACCEPT_ENTRY, |
29 |
|
.preference.learning_verbose = false, |
30 |
|
.preference.learning_exec_realpath = true, |
31 |
|
.preference.learning_exec_argv0 = true, |
32 |
|
.preference.learning_symlink_target = true, |
33 |
|
.preference.permissive_verbose = true |
34 |
|
}; |
35 |
|
|
36 |
/* Profile table. Memory is allocated as needed. */ |
/* Profile table. Memory is allocated as needed. */ |
37 |
static struct ccs_profile *ccs_profile_ptr[CCS_MAX_PROFILES]; |
static struct ccs_profile *ccs_profile_ptr[CCS_MAX_PROFILES]; |
38 |
|
|
265 |
ptr = ccs_profile_ptr[profile]; |
ptr = ccs_profile_ptr[profile]; |
266 |
if (!ptr && ccs_memory_ok(entry, sizeof(*entry))) { |
if (!ptr && ccs_memory_ok(entry, sizeof(*entry))) { |
267 |
ptr = entry; |
ptr = entry; |
268 |
ptr->audit_max_grant_log = CONFIG_CCSECURITY_MAX_GRANT_LOG; |
ptr->audit = &ccs_default_profile.preference; |
269 |
ptr->audit_max_reject_log = CONFIG_CCSECURITY_MAX_REJECT_LOG; |
ptr->learning = &ccs_default_profile.preference; |
270 |
ptr->enforcing_penalty = 0; |
ptr->permissive = &ccs_default_profile.preference; |
271 |
ptr->learning_max_entry = CONFIG_CCSECURITY_MAX_ACCEPT_ENTRY; |
ptr->enforcing = &ccs_default_profile.preference; |
|
ptr->enforcing_verbose = true; |
|
|
ptr->permissive_verbose = true; |
|
|
ptr->learning_verbose = false; |
|
|
ptr->learning_exec_realpath = true; |
|
|
ptr->learning_exec_argv0 = true; |
|
272 |
ptr->default_config = CCS_CONFIG_DISABLED | |
ptr->default_config = CCS_CONFIG_DISABLED | |
273 |
CCS_CONFIG_WANT_GRANT_LOG | CCS_CONFIG_WANT_REJECT_LOG; |
CCS_CONFIG_WANT_GRANT_LOG | CCS_CONFIG_WANT_REJECT_LOG; |
274 |
memset(ptr->config, CCS_CONFIG_USE_DEFAULT, |
memset(ptr->config, CCS_CONFIG_USE_DEFAULT, |
283 |
} |
} |
284 |
|
|
285 |
/** |
/** |
286 |
|
* ccs_check_profile - Check all profiles currently assigned to domains are defined. |
287 |
|
*/ |
288 |
|
void ccs_check_profile(void) |
289 |
|
{ |
290 |
|
struct ccs_domain_info *domain; |
291 |
|
ccs_policy_loaded = true; |
292 |
|
list_for_each_entry_rcu(domain, &ccs_domain_list, list) { |
293 |
|
const u8 profile = domain->profile; |
294 |
|
if (ccs_profile_ptr[profile]) |
295 |
|
continue; |
296 |
|
panic("Profile %u (used by '%s') not defined.\n", |
297 |
|
profile, domain->domainname->name); |
298 |
|
} |
299 |
|
} |
300 |
|
|
301 |
|
/** |
302 |
* ccs_profile - Find a profile. |
* ccs_profile - Find a profile. |
303 |
* |
* |
304 |
* @profile: Profile number to find. |
* @profile: Profile number to find. |
305 |
* |
* |
306 |
* Returns pointer to "struct ccs_profile" on success, NULL otherwise. |
* Returns pointer to "struct ccs_profile". |
307 |
*/ |
*/ |
308 |
struct ccs_profile *ccs_profile(const u8 profile) |
struct ccs_profile *ccs_profile(const u8 profile) |
309 |
{ |
{ |
310 |
if (!ccs_policy_loaded) { |
struct ccs_profile *ptr = ccs_profile_ptr[profile]; |
311 |
static struct ccs_profile dummy; |
if (!ccs_policy_loaded) |
312 |
return &dummy; |
return &ccs_default_profile; |
313 |
} |
BUG_ON(!ptr); |
314 |
return ccs_profile_ptr[profile]; |
return ptr; |
315 |
} |
} |
316 |
|
|
317 |
/** |
/** |
328 |
int value; |
int value; |
329 |
int mode; |
int mode; |
330 |
u8 config; |
u8 config; |
331 |
|
bool use_default = false; |
332 |
char *cp; |
char *cp; |
333 |
struct ccs_profile *profile; |
struct ccs_profile *profile; |
334 |
i = simple_strtoul(data, &cp, 10); |
i = simple_strtoul(data, &cp, 10); |
335 |
if (data != cp) { |
if (data == cp) { |
336 |
|
profile = &ccs_default_profile; |
337 |
|
} else { |
338 |
if (*cp != '-') |
if (*cp != '-') |
339 |
return -EINVAL; |
return -EINVAL; |
340 |
data = cp + 1; |
data = cp + 1; |
341 |
|
profile = ccs_find_or_assign_new_profile(i); |
342 |
|
if (!profile) |
343 |
|
return -EINVAL; |
344 |
} |
} |
|
profile = ccs_find_or_assign_new_profile(i); |
|
|
if (!profile) |
|
|
return -EINVAL; |
|
345 |
cp = strchr(data, '='); |
cp = strchr(data, '='); |
346 |
if (!cp) |
if (!cp) |
347 |
return -EINVAL; |
return -EINVAL; |
348 |
*cp++ = '\0'; |
*cp++ = '\0'; |
349 |
if (!strcmp(data, "COMMENT")) { |
if (profile != &ccs_default_profile) |
350 |
const struct ccs_path_info *new_comment = ccs_get_name(cp); |
use_default = strstr(cp, "use_default") != NULL; |
|
const struct ccs_path_info *old_comment; |
|
|
/* Protect reader from ccs_put_name(). */ |
|
|
spin_lock(&ccs_profile_comment_lock); |
|
|
old_comment = profile->comment; |
|
|
profile->comment = new_comment; |
|
|
spin_unlock(&ccs_profile_comment_lock); |
|
|
ccs_put_name(old_comment); |
|
|
return 0; |
|
|
} |
|
|
if (!strcmp(data, "PREFERENCE::audit")) { |
|
|
char *cp2 = strstr(cp, "max_grant_log="); |
|
|
if (cp2) |
|
|
sscanf(cp2 + 14, "%u", &profile->audit_max_grant_log); |
|
|
cp2 = strstr(cp, "max_reject_log="); |
|
|
if (cp2) |
|
|
sscanf(cp2 + 15, "%u", &profile->audit_max_reject_log); |
|
|
return 0; |
|
|
} |
|
351 |
if (strstr(cp, "verbose=yes")) |
if (strstr(cp, "verbose=yes")) |
352 |
value = 1; |
value = 1; |
353 |
else if (strstr(cp, "verbose=no")) |
else if (strstr(cp, "verbose=no")) |
354 |
value = 0; |
value = 0; |
355 |
else |
else |
356 |
value = -1; |
value = -1; |
357 |
|
if (!strcmp(data, "PREFERENCE::audit")) { |
358 |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
359 |
|
char *cp2; |
360 |
|
#endif |
361 |
|
if (use_default) { |
362 |
|
profile->audit = &ccs_default_profile.preference; |
363 |
|
return 0; |
364 |
|
} |
365 |
|
profile->audit = &profile->preference; |
366 |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
367 |
|
cp2 = strstr(cp, "max_grant_log="); |
368 |
|
if (cp2) |
369 |
|
sscanf(cp2 + 14, "%u", |
370 |
|
&profile->preference.audit_max_grant_log); |
371 |
|
cp2 = strstr(cp, "max_reject_log="); |
372 |
|
if (cp2) |
373 |
|
sscanf(cp2 + 15, "%u", |
374 |
|
&profile->preference.audit_max_reject_log); |
375 |
|
#endif |
376 |
|
if (strstr(cp, "task_info=yes")) |
377 |
|
profile->preference.audit_task_info = true; |
378 |
|
else if (strstr(cp, "task_info=no")) |
379 |
|
profile->preference.audit_task_info = false; |
380 |
|
if (strstr(cp, "path_info=yes")) |
381 |
|
profile->preference.audit_path_info = true; |
382 |
|
else if (strstr(cp, "path_info=no")) |
383 |
|
profile->preference.audit_path_info = false; |
384 |
|
return 0; |
385 |
|
} |
386 |
if (!strcmp(data, "PREFERENCE::enforcing")) { |
if (!strcmp(data, "PREFERENCE::enforcing")) { |
387 |
char *cp2; |
char *cp2; |
388 |
|
if (use_default) { |
389 |
|
profile->enforcing = &ccs_default_profile.preference; |
390 |
|
return 0; |
391 |
|
} |
392 |
|
profile->enforcing = &profile->preference; |
393 |
if (value >= 0) |
if (value >= 0) |
394 |
profile->enforcing_verbose = value; |
profile->preference.enforcing_verbose = value; |
395 |
cp2 = strstr(cp, "penalty="); |
cp2 = strstr(cp, "penalty="); |
396 |
if (cp2) |
if (cp2) |
397 |
sscanf(cp2 + 8, "%u", &profile->enforcing_penalty); |
sscanf(cp2 + 8, "%u", |
398 |
|
&profile->preference.enforcing_penalty); |
399 |
return 0; |
return 0; |
400 |
} |
} |
401 |
if (!strcmp(data, "PREFERENCE::permissive")) { |
if (!strcmp(data, "PREFERENCE::permissive")) { |
402 |
|
if (use_default) { |
403 |
|
profile->permissive = &ccs_default_profile.preference; |
404 |
|
return 0; |
405 |
|
} |
406 |
|
profile->permissive = &profile->preference; |
407 |
if (value >= 0) |
if (value >= 0) |
408 |
profile->permissive_verbose = value; |
profile->preference.permissive_verbose = value; |
409 |
return 0; |
return 0; |
410 |
} |
} |
411 |
if (!strcmp(data, "PREFERENCE::learning")) { |
if (!strcmp(data, "PREFERENCE::learning")) { |
412 |
char *cp2; |
char *cp2; |
413 |
|
if (use_default) { |
414 |
|
profile->learning = &ccs_default_profile.preference; |
415 |
|
return 0; |
416 |
|
} |
417 |
|
profile->learning = &profile->preference; |
418 |
if (value >= 0) |
if (value >= 0) |
419 |
profile->learning_verbose = value; |
profile->preference.learning_verbose = value; |
420 |
cp2 = strstr(cp, "max_entry="); |
cp2 = strstr(cp, "max_entry="); |
421 |
if (cp2) |
if (cp2) |
422 |
sscanf(cp2 + 10, "%u", &profile->learning_max_entry); |
sscanf(cp2 + 10, "%u", |
423 |
|
&profile->preference.learning_max_entry); |
424 |
if (strstr(cp, "exec.realpath=yes")) |
if (strstr(cp, "exec.realpath=yes")) |
425 |
profile->learning_exec_realpath = true; |
profile->preference.learning_exec_realpath = true; |
426 |
else if (strstr(cp, "exec.realpath=no")) |
else if (strstr(cp, "exec.realpath=no")) |
427 |
profile->learning_exec_realpath = false; |
profile->preference.learning_exec_realpath = false; |
428 |
if (strstr(cp, "exec.argv0=yes")) |
if (strstr(cp, "exec.argv0=yes")) |
429 |
profile->learning_exec_argv0 = true; |
profile->preference.learning_exec_argv0 = true; |
430 |
else if (strstr(cp, "exec.argv0=no")) |
else if (strstr(cp, "exec.argv0=no")) |
431 |
profile->learning_exec_argv0 = false; |
profile->preference.learning_exec_argv0 = false; |
432 |
|
if (strstr(cp, "symlink.target=yes")) |
433 |
|
profile->preference.learning_symlink_target = true; |
434 |
|
else if (strstr(cp, "symlink.target=no")) |
435 |
|
profile->preference.learning_symlink_target = false; |
436 |
|
return 0; |
437 |
|
} |
438 |
|
if (profile == &ccs_default_profile) |
439 |
|
return -EINVAL; |
440 |
|
if (!strcmp(data, "COMMENT")) { |
441 |
|
const struct ccs_path_info *new_comment = ccs_get_name(cp); |
442 |
|
const struct ccs_path_info *old_comment; |
443 |
|
/* Protect reader from ccs_put_name(). */ |
444 |
|
spin_lock(&ccs_profile_comment_lock); |
445 |
|
old_comment = profile->comment; |
446 |
|
profile->comment = new_comment; |
447 |
|
spin_unlock(&ccs_profile_comment_lock); |
448 |
|
ccs_put_name(old_comment); |
449 |
return 0; |
return 0; |
450 |
} |
} |
451 |
if (!strcmp(data, "CONFIG")) { |
if (!strcmp(data, "CONFIG")) { |
467 |
} else { |
} else { |
468 |
return -EINVAL; |
return -EINVAL; |
469 |
} |
} |
470 |
if (strstr(cp, "use_default")) { |
if (use_default) { |
471 |
config = CCS_CONFIG_USE_DEFAULT; |
config = CCS_CONFIG_USE_DEFAULT; |
472 |
} else { |
} else { |
473 |
for (mode = 3; mode >= 0; mode--) |
for (mode = 3; mode >= 0; mode--) |
477 |
* 'config' from 'CCS_CONFIG_USE_DEAFULT'. |
* 'config' from 'CCS_CONFIG_USE_DEAFULT'. |
478 |
*/ |
*/ |
479 |
config = (config & ~7) | mode; |
config = (config & ~7) | mode; |
480 |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
481 |
if (config != CCS_CONFIG_USE_DEFAULT) { |
if (config != CCS_CONFIG_USE_DEFAULT) { |
482 |
if (strstr(cp, "grant_log=yes")) |
if (strstr(cp, "grant_log=yes")) |
483 |
config |= CCS_CONFIG_WANT_GRANT_LOG; |
config |= CCS_CONFIG_WANT_GRANT_LOG; |
488 |
else if (strstr(cp, "reject_log=no")) |
else if (strstr(cp, "reject_log=no")) |
489 |
config &= ~CCS_CONFIG_WANT_REJECT_LOG; |
config &= ~CCS_CONFIG_WANT_REJECT_LOG; |
490 |
} |
} |
491 |
|
#endif |
492 |
} |
} |
493 |
if (i < CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
if (i < CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
494 |
+ CCS_MAX_MAC_CATEGORY_INDEX) |
+ CCS_MAX_MAC_CATEGORY_INDEX) |
508 |
int index; |
int index; |
509 |
if (head->read_eof) |
if (head->read_eof) |
510 |
return; |
return; |
511 |
|
if (head->read_bit) |
512 |
|
goto body; |
513 |
|
ccs_io_printf(head, "PROFILE_VERSION=%s\n", "20090903"); |
514 |
|
ccs_io_printf(head, "PREFERENCE::audit={ " |
515 |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
516 |
|
"max_grant_log=%u max_reject_log=%u " |
517 |
|
#endif |
518 |
|
"task_info=%s path_info=%s }\n", |
519 |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
520 |
|
ccs_default_profile.preference.audit_max_grant_log, |
521 |
|
ccs_default_profile.preference.audit_max_reject_log, |
522 |
|
#endif |
523 |
|
ccs_yesno(ccs_default_profile.preference. |
524 |
|
audit_task_info), |
525 |
|
ccs_yesno(ccs_default_profile.preference. |
526 |
|
audit_path_info)); |
527 |
|
ccs_io_printf(head, "PREFERENCE::learning={ verbose=%s max_entry=%u " |
528 |
|
"exec.realpath=%s exec.argv0=%s symlink.target=%s }\n", |
529 |
|
ccs_yesno(ccs_default_profile.preference. |
530 |
|
learning_verbose), |
531 |
|
ccs_default_profile.preference.learning_max_entry, |
532 |
|
ccs_yesno(ccs_default_profile.preference. |
533 |
|
learning_exec_realpath), |
534 |
|
ccs_yesno(ccs_default_profile.preference. |
535 |
|
learning_exec_argv0), |
536 |
|
ccs_yesno(ccs_default_profile.preference. |
537 |
|
learning_symlink_target)); |
538 |
|
ccs_io_printf(head, "PREFERENCE::permissive={ verbose=%s }\n", |
539 |
|
ccs_yesno(ccs_default_profile.preference. |
540 |
|
permissive_verbose)); |
541 |
|
ccs_io_printf(head, "PREFERENCE::enforcing={ verbose=%s penalty=%u " |
542 |
|
"}\n", |
543 |
|
ccs_yesno(ccs_default_profile.preference. |
544 |
|
enforcing_verbose), |
545 |
|
ccs_default_profile.preference.enforcing_penalty); |
546 |
|
head->read_bit = 1; |
547 |
|
body: |
548 |
for (index = head->read_step; index < CCS_MAX_PROFILES; index++) { |
for (index = head->read_step; index < CCS_MAX_PROFILES; index++) { |
549 |
bool done; |
bool done; |
550 |
u8 config; |
u8 config; |
551 |
int i; |
int i; |
552 |
int pos = head->read_avail; |
int pos; |
553 |
const struct ccs_profile *profile = ccs_profile_ptr[index]; |
const struct ccs_profile *profile = ccs_profile_ptr[index]; |
554 |
head->read_step = index; |
head->read_step = index; |
555 |
if (!profile) |
if (!profile) |
556 |
continue; |
continue; |
557 |
|
pos = head->read_avail; |
558 |
spin_lock(&ccs_profile_comment_lock); |
spin_lock(&ccs_profile_comment_lock); |
559 |
done = ccs_io_printf(head, "%u-COMMENT=%s\n", index, |
done = ccs_io_printf(head, "%u-COMMENT=%s\n", index, |
560 |
profile->comment ? profile->comment->name |
profile->comment ? profile->comment->name |
563 |
if (!done) |
if (!done) |
564 |
goto out; |
goto out; |
565 |
config = profile->default_config; |
config = profile->default_config; |
566 |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
567 |
if (!ccs_io_printf(head, "%u-CONFIG={ mode=%s grant_log=%s " |
if (!ccs_io_printf(head, "%u-CONFIG={ mode=%s grant_log=%s " |
568 |
"reject_log=%s }\n", index, |
"reject_log=%s }\n", index, |
569 |
ccs_mode_4[config & 3], |
ccs_mode_4[config & 3], |
572 |
ccs_yesno(config & |
ccs_yesno(config & |
573 |
CCS_CONFIG_WANT_REJECT_LOG))) |
CCS_CONFIG_WANT_REJECT_LOG))) |
574 |
goto out; |
goto out; |
575 |
|
#else |
576 |
|
if (!ccs_io_printf(head, "%u-CONFIG={ mode=%s }\n", index, |
577 |
|
ccs_mode_4[config & 3])) |
578 |
|
goto out; |
579 |
|
#endif |
580 |
for (i = 0; i < CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
for (i = 0; i < CCS_MAX_MAC_INDEX + CCS_MAX_CAPABILITY_INDEX |
581 |
+ CCS_MAX_MAC_CATEGORY_INDEX; i++) { |
+ CCS_MAX_MAC_CATEGORY_INDEX; i++) { |
582 |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
583 |
const char *g; |
const char *g; |
584 |
const char *r; |
const char *r; |
585 |
|
#endif |
586 |
config = profile->config[i]; |
config = profile->config[i]; |
587 |
if (config == CCS_CONFIG_USE_DEFAULT) |
if (config == CCS_CONFIG_USE_DEFAULT) |
588 |
continue; |
continue; |
589 |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
590 |
g = ccs_yesno(config & CCS_CONFIG_WANT_GRANT_LOG); |
g = ccs_yesno(config & CCS_CONFIG_WANT_GRANT_LOG); |
591 |
r = ccs_yesno(config & CCS_CONFIG_WANT_REJECT_LOG); |
r = ccs_yesno(config & CCS_CONFIG_WANT_REJECT_LOG); |
592 |
if (!ccs_io_printf(head, "%u-CONFIG::%s={ mode=%s " |
if (!ccs_io_printf(head, "%u-CONFIG::%s={ mode=%s " |
594 |
index, ccs_mac_keywords[i], |
index, ccs_mac_keywords[i], |
595 |
ccs_mode_4[config & 3], g, r)) |
ccs_mode_4[config & 3], g, r)) |
596 |
goto out; |
goto out; |
597 |
|
#else |
598 |
|
if (!ccs_io_printf(head, "%u-CONFIG::%s={ mode=%s }\n", |
599 |
|
index, ccs_mac_keywords[i], |
600 |
|
ccs_mode_4[config & 3])) |
601 |
|
goto out; |
602 |
|
#endif |
603 |
} |
} |
604 |
if (!ccs_io_printf(head, "%u-PREFERENCE::audit={ " |
if (profile->audit != &ccs_default_profile.preference && |
605 |
"max_grant_log=%u max_reject_log=%u }\n", |
!ccs_io_printf(head, "%u-PREFERENCE::audit={ " |
606 |
index, profile->audit_max_grant_log, |
#ifdef CONFIG_CCSECURITY_AUDIT |
607 |
profile->audit_max_reject_log) || |
"max_grant_log=%u max_reject_log=%u " |
608 |
|
#endif |
609 |
|
"task_info=%s path_info=%s }\n", index, |
610 |
|
#ifdef CONFIG_CCSECURITY_AUDIT |
611 |
|
profile->preference.audit_max_grant_log, |
612 |
|
profile->preference.audit_max_reject_log, |
613 |
|
#endif |
614 |
|
ccs_yesno(profile->preference. |
615 |
|
audit_task_info), |
616 |
|
ccs_yesno(profile->preference. |
617 |
|
audit_path_info))) |
618 |
|
goto out; |
619 |
|
if (profile->learning != &ccs_default_profile.preference && |
620 |
!ccs_io_printf(head, "%u-PREFERENCE::learning={ " |
!ccs_io_printf(head, "%u-PREFERENCE::learning={ " |
621 |
"verbose=%s max_entry=%u exec.realpath=%s " |
"verbose=%s max_entry=%u exec.realpath=%s " |
622 |
"exec.argv0=%s }\n", index, |
"exec.argv0=%s symlink.target=%s }\n", |
623 |
ccs_yesno(profile->learning_verbose), |
index, |
624 |
profile->learning_max_entry, |
ccs_yesno(profile->preference. |
625 |
ccs_yesno(profile->learning_exec_realpath), |
learning_verbose), |
626 |
ccs_yesno(profile->learning_exec_argv0)) || |
profile->preference.learning_max_entry, |
627 |
|
ccs_yesno(profile->preference. |
628 |
|
learning_exec_realpath), |
629 |
|
ccs_yesno(profile->preference. |
630 |
|
learning_exec_argv0), |
631 |
|
ccs_yesno(profile->preference. |
632 |
|
learning_symlink_target))) |
633 |
|
goto out; |
634 |
|
if (profile->permissive != &ccs_default_profile.preference && |
635 |
!ccs_io_printf(head, "%u-PREFERENCE::permissive={ " |
!ccs_io_printf(head, "%u-PREFERENCE::permissive={ " |
636 |
"verbose=%s }\n", index, |
"verbose=%s }\n", index, |
637 |
ccs_yesno(profile->permissive_verbose)) || |
ccs_yesno(profile->preference. |
638 |
|
permissive_verbose))) |
639 |
|
goto out; |
640 |
|
if (profile->enforcing != &ccs_default_profile.preference && |
641 |
!ccs_io_printf(head, "%u-PREFERENCE::enforcing={ " |
!ccs_io_printf(head, "%u-PREFERENCE::enforcing={ " |
642 |
"verbose=%s penalty=%u }\n", index, |
"verbose=%s penalty=%u }\n", index, |
643 |
ccs_yesno(profile->enforcing_verbose), |
ccs_yesno(profile->preference. |
644 |
profile->enforcing_penalty)) |
enforcing_verbose), |
645 |
|
profile->preference.enforcing_penalty)) |
646 |
goto out; |
goto out; |
647 |
continue; |
continue; |
648 |
out: |
out: |
839 |
{ |
{ |
840 |
unsigned int pid; |
unsigned int pid; |
841 |
struct ccs_domain_info *domain = NULL; |
struct ccs_domain_info *domain = NULL; |
842 |
|
bool global_pid = false; |
843 |
if (!strcmp(data, "allow_execute")) { |
if (!strcmp(data, "allow_execute")) { |
844 |
head->read_execute_only = true; |
head->read_execute_only = true; |
845 |
return true; |
return true; |
846 |
} |
} |
847 |
if (sscanf(data, "pid=%u", &pid) == 1) { |
if (sscanf(data, "pid=%u", &pid) == 1 || |
848 |
|
(global_pid = true, sscanf(data, "global-pid=%u", &pid) == 1)) { |
849 |
struct task_struct *p; |
struct task_struct *p; |
850 |
read_lock(&tasklist_lock); |
read_lock(&tasklist_lock); |
851 |
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) |
852 |
|
if (global_pid) |
853 |
|
p = find_task_by_pid_ns(pid, &init_pid_ns); |
854 |
|
else |
855 |
|
p = find_task_by_vpid(pid); |
856 |
|
#else |
857 |
p = find_task_by_pid(pid); |
p = find_task_by_pid(pid); |
858 |
|
#endif |
859 |
if (p) |
if (p) |
860 |
domain = ccs_task_domain(p); |
domain = ccs_task_domain(p); |
861 |
read_unlock(&tasklist_lock); |
read_unlock(&tasklist_lock); |
904 |
return ccs_write_env_policy(data, domain, cond, is_delete); |
return ccs_write_env_policy(data, domain, cond, is_delete); |
905 |
if (ccs_str_starts(&data, CCS_KEYWORD_ALLOW_MOUNT)) |
if (ccs_str_starts(&data, CCS_KEYWORD_ALLOW_MOUNT)) |
906 |
return ccs_write_mount_policy(data, domain, cond, is_delete); |
return ccs_write_mount_policy(data, domain, cond, is_delete); |
|
if (ccs_str_starts(&data, CCS_KEYWORD_ALLOW_UNMOUNT)) |
|
|
return ccs_write_umount_policy(data, domain, cond, is_delete); |
|
|
if (ccs_str_starts(&data, CCS_KEYWORD_ALLOW_CHROOT)) |
|
|
return ccs_write_chroot_policy(data, domain, cond, is_delete); |
|
|
if (ccs_str_starts(&data, CCS_KEYWORD_ALLOW_PIVOT_ROOT)) |
|
|
return ccs_write_pivot_root_policy(data, domain, cond, |
|
|
is_delete); |
|
907 |
return ccs_write_file_policy(data, domain, cond, is_delete); |
return ccs_write_file_policy(data, domain, cond, is_delete); |
908 |
} |
} |
909 |
|
|
949 |
|
|
950 |
if (sscanf(data, CCS_KEYWORD_USE_PROFILE "%u", &profile) == 1 |
if (sscanf(data, CCS_KEYWORD_USE_PROFILE "%u", &profile) == 1 |
951 |
&& profile < CCS_MAX_PROFILES) { |
&& profile < CCS_MAX_PROFILES) { |
952 |
if (ccs_profile(profile)) |
if (!ccs_policy_loaded || ccs_profile_ptr[(u8) profile]) |
953 |
domain->profile = (u8) profile; |
domain->profile = (u8) profile; |
954 |
return 0; |
return 0; |
955 |
} |
} |
1202 |
} |
} |
1203 |
|
|
1204 |
/** |
/** |
1205 |
* ccs_print_path_acl - Print a single path ACL entry. |
* ccs_print_path_acl - Print a path ACL entry. |
1206 |
* |
* |
1207 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1208 |
* @ptr: Pointer to "struct ccs_path_acl". |
* @ptr: Pointer to "struct ccs_path_acl". |
1553 |
} |
} |
1554 |
|
|
1555 |
/** |
/** |
|
* ccs_print_umount_acl - Print a mount ACL entry. |
|
|
* |
|
|
* @head: Pointer to "struct ccs_io_buffer". |
|
|
* @ptr: Pointer to "struct ccs_umount_acl". |
|
|
* @cond: Pointer to "struct ccs_condition". May be NULL. |
|
|
* |
|
|
* Returns true on success, false otherwise. |
|
|
*/ |
|
|
static bool ccs_print_umount_acl(struct ccs_io_buffer *head, |
|
|
struct ccs_umount_acl *ptr, |
|
|
const struct ccs_condition *cond) |
|
|
{ |
|
|
const int pos = head->read_avail; |
|
|
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_UNMOUNT) || |
|
|
!ccs_print_name_union(head, &ptr->dir) || |
|
|
!ccs_print_condition(head, cond)) { |
|
|
head->read_avail = pos; |
|
|
return false; |
|
|
} |
|
|
return true; |
|
|
} |
|
|
|
|
|
/** |
|
|
* ccs_print_chroot_acl - Print a chroot ACL entry. |
|
|
* |
|
|
* @head: Pointer to "struct ccs_io_buffer". |
|
|
* @ptr: Pointer to "struct ccs_chroot_acl". |
|
|
* @cond: Pointer to "struct ccs_condition". May be NULL. |
|
|
* |
|
|
* Returns true on success, false otherwise. |
|
|
*/ |
|
|
static bool ccs_print_chroot_acl(struct ccs_io_buffer *head, |
|
|
struct ccs_chroot_acl *ptr, |
|
|
const struct ccs_condition *cond) |
|
|
{ |
|
|
const int pos = head->read_avail; |
|
|
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_CHROOT) || |
|
|
!ccs_print_name_union(head, &ptr->dir) || |
|
|
!ccs_print_condition(head, cond)) { |
|
|
head->read_avail = pos; |
|
|
return false; |
|
|
} |
|
|
return true; |
|
|
} |
|
|
|
|
|
/** |
|
|
* ccs_print_pivot_root_acl - Print a pivot_root ACL entry. |
|
|
* |
|
|
* @head: Pointer to "struct ccs_io_buffer". |
|
|
* @ptr: Pointer to "struct ccs_pivot_root_acl". |
|
|
* @cond: Pointer to "struct ccs_condition". May be NULL. |
|
|
* |
|
|
* Returns true on success, false otherwise. |
|
|
*/ |
|
|
static bool ccs_print_pivot_root_acl(struct ccs_io_buffer *head, |
|
|
struct ccs_pivot_root_acl *ptr, |
|
|
const struct ccs_condition *cond) |
|
|
{ |
|
|
const int pos = head->read_avail; |
|
|
if (!ccs_io_printf(head, CCS_KEYWORD_ALLOW_PIVOT_ROOT) || |
|
|
!ccs_print_name_union(head, &ptr->new_root) || |
|
|
!ccs_print_name_union(head, &ptr->old_root) || |
|
|
!ccs_print_condition(head, cond)) { |
|
|
head->read_avail = pos; |
|
|
return false; |
|
|
} |
|
|
return true; |
|
|
} |
|
|
|
|
|
/** |
|
1556 |
* ccs_print_entry - Print an ACL entry. |
* ccs_print_entry - Print an ACL entry. |
1557 |
* |
* |
1558 |
* @head: Pointer to "struct ccs_io_buffer". |
* @head: Pointer to "struct ccs_io_buffer". |
1569 |
return true; |
return true; |
1570 |
if (acl_type == CCS_TYPE_PATH_ACL) { |
if (acl_type == CCS_TYPE_PATH_ACL) { |
1571 |
struct ccs_path_acl *acl |
struct ccs_path_acl *acl |
1572 |
= container_of(ptr, struct ccs_path_acl, |
= container_of(ptr, struct ccs_path_acl, head); |
|
head); |
|
1573 |
return ccs_print_path_acl(head, acl, cond); |
return ccs_print_path_acl(head, acl, cond); |
1574 |
} |
} |
1575 |
if (acl_type == CCS_TYPE_EXECUTE_HANDLER) { |
if (acl_type == CCS_TYPE_EXECUTE_HANDLER) { |
1595 |
} |
} |
1596 |
if (acl_type == CCS_TYPE_PATH2_ACL) { |
if (acl_type == CCS_TYPE_PATH2_ACL) { |
1597 |
struct ccs_path2_acl *acl |
struct ccs_path2_acl *acl |
1598 |
= container_of(ptr, struct ccs_path2_acl, |
= container_of(ptr, struct ccs_path2_acl, head); |
|
head); |
|
1599 |
return ccs_print_path2_acl(head, acl, cond); |
return ccs_print_path2_acl(head, acl, cond); |
1600 |
} |
} |
1601 |
if (acl_type == CCS_TYPE_PATH_NUMBER_ACL) { |
if (acl_type == CCS_TYPE_PATH_NUMBER_ACL) { |
1602 |
struct ccs_path_number_acl *acl |
struct ccs_path_number_acl *acl |
1603 |
= container_of(ptr, struct ccs_path_number_acl, |
= container_of(ptr, struct ccs_path_number_acl, head); |
|
head); |
|
1604 |
return ccs_print_path_number_acl(head, acl, cond); |
return ccs_print_path_number_acl(head, acl, cond); |
1605 |
} |
} |
1606 |
if (acl_type == CCS_TYPE_ENV_ACL) { |
if (acl_type == CCS_TYPE_ENV_ACL) { |
1610 |
} |
} |
1611 |
if (acl_type == CCS_TYPE_CAPABILITY_ACL) { |
if (acl_type == CCS_TYPE_CAPABILITY_ACL) { |
1612 |
struct ccs_capability_acl *acl |
struct ccs_capability_acl *acl |
1613 |
= container_of(ptr, struct ccs_capability_acl, |
= container_of(ptr, struct ccs_capability_acl, head); |
|
head); |
|
1614 |
return ccs_print_capability_acl(head, acl, cond); |
return ccs_print_capability_acl(head, acl, cond); |
1615 |
} |
} |
1616 |
if (acl_type == CCS_TYPE_IP_NETWORK_ACL) { |
if (acl_type == CCS_TYPE_IP_NETWORK_ACL) { |
1617 |
struct ccs_ip_network_acl *acl |
struct ccs_ip_network_acl *acl |
1618 |
= container_of(ptr, struct ccs_ip_network_acl, |
= container_of(ptr, struct ccs_ip_network_acl, head); |
|
head); |
|
1619 |
return ccs_print_network_acl(head, acl, cond); |
return ccs_print_network_acl(head, acl, cond); |
1620 |
} |
} |
1621 |
if (acl_type == CCS_TYPE_SIGNAL_ACL) { |
if (acl_type == CCS_TYPE_SIGNAL_ACL) { |
1628 |
= container_of(ptr, struct ccs_mount_acl, head); |
= container_of(ptr, struct ccs_mount_acl, head); |
1629 |
return ccs_print_mount_acl(head, acl, cond); |
return ccs_print_mount_acl(head, acl, cond); |
1630 |
} |
} |
|
if (acl_type == CCS_TYPE_UMOUNT_ACL) { |
|
|
struct ccs_umount_acl *acl |
|
|
= container_of(ptr, struct ccs_umount_acl, head); |
|
|
return ccs_print_umount_acl(head, acl, cond); |
|
|
} |
|
|
if (acl_type == CCS_TYPE_CHROOT_ACL) { |
|
|
struct ccs_chroot_acl *acl |
|
|
= container_of(ptr, struct ccs_chroot_acl, head); |
|
|
return ccs_print_chroot_acl(head, acl, cond); |
|
|
} |
|
|
if (acl_type == CCS_TYPE_PIVOT_ROOT_ACL) { |
|
|
struct ccs_pivot_root_acl *acl |
|
|
= container_of(ptr, struct ccs_pivot_root_acl, |
|
|
head); |
|
|
return ccs_print_pivot_root_acl(head, acl, cond); |
|
|
} |
|
1631 |
BUG(); /* This must not happen. */ |
BUG(); /* This must not happen. */ |
1632 |
return false; |
return false; |
1633 |
} |
} |
1726 |
if (profile >= CCS_MAX_PROFILES) |
if (profile >= CCS_MAX_PROFILES) |
1727 |
return -EINVAL; |
return -EINVAL; |
1728 |
domain = ccs_find_domain(cp + 1); |
domain = ccs_find_domain(cp + 1); |
1729 |
if (domain && ccs_profile(profile)) |
if (domain && (!ccs_policy_loaded || ccs_profile_ptr[(u8) profile])) |
1730 |
domain->profile = (u8) profile; |
domain->profile = (u8) profile; |
1731 |
return 0; |
return 0; |
1732 |
} |
} |
1790 |
{ |
{ |
1791 |
char *buf = head->write_buf; |
char *buf = head->write_buf; |
1792 |
bool task_info = false; |
bool task_info = false; |
1793 |
|
bool global_pid = false; |
1794 |
unsigned int pid; |
unsigned int pid; |
1795 |
struct task_struct *p; |
struct task_struct *p; |
1796 |
struct ccs_domain_info *domain = NULL; |
struct ccs_domain_info *domain = NULL; |
1803 |
head->read_eof = true; |
head->read_eof = true; |
1804 |
if (ccs_str_starts(&buf, "info ")) |
if (ccs_str_starts(&buf, "info ")) |
1805 |
task_info = true; |
task_info = true; |
1806 |
|
if (ccs_str_starts(&buf, "global-pid ")) |
1807 |
|
global_pid = true; |
1808 |
pid = (unsigned int) simple_strtoul(buf, NULL, 10); |
pid = (unsigned int) simple_strtoul(buf, NULL, 10); |
1809 |
read_lock(&tasklist_lock); |
read_lock(&tasklist_lock); |
1810 |
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) |
1811 |
|
if (global_pid) |
1812 |
|
p = find_task_by_pid_ns(pid, &init_pid_ns); |
1813 |
|
else |
1814 |
|
p = find_task_by_vpid(pid); |
1815 |
|
#else |
1816 |
p = find_task_by_pid(pid); |
p = find_task_by_pid(pid); |
1817 |
|
#endif |
1818 |
if (p) { |
if (p) { |
1819 |
domain = ccs_task_domain(p); |
domain = ccs_task_domain(p); |
1820 |
ccs_flags = p->ccs_flags; |
ccs_flags = p->ccs_flags; |
2022 |
char *realpath = NULL; |
char *realpath = NULL; |
2023 |
char *argv0 = NULL; |
char *argv0 = NULL; |
2024 |
const struct ccs_profile *profile = ccs_profile(ee->r.domain->profile); |
const struct ccs_profile *profile = ccs_profile(ee->r.domain->profile); |
2025 |
if (profile->learning_exec_realpath) { |
if (profile->learning->learning_exec_realpath) { |
2026 |
struct file *file = ee->bprm->file; |
struct file *file = ee->bprm->file; |
2027 |
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20) |
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20) |
2028 |
struct path path = { file->f_vfsmnt, file->f_dentry }; |
struct path path = { file->f_vfsmnt, file->f_dentry }; |
2033 |
if (realpath) |
if (realpath) |
2034 |
len += strlen(realpath) + 17; |
len += strlen(realpath) + 17; |
2035 |
} |
} |
2036 |
if (profile->learning_exec_argv0) { |
if (profile->learning->learning_exec_argv0) { |
2037 |
if (ccs_get_argv0(ee)) { |
if (ccs_get_argv0(ee)) { |
2038 |
argv0 = ee->tmp; |
argv0 = ee->tmp; |
2039 |
len += strlen(argv0) + 16; |
len += strlen(argv0) + 16; |
2066 |
return cond; |
return cond; |
2067 |
} |
} |
2068 |
|
|
2069 |
|
/** |
2070 |
|
* ccs_get_symlink_condition - Get condition part for symlink requests. |
2071 |
|
* |
2072 |
|
* @r: Pointer to "struct ccs_request_info". |
2073 |
|
* |
2074 |
|
* Returns pointer to "struct ccs_condition" on success, NULL otherwise. |
2075 |
|
*/ |
2076 |
|
static struct ccs_condition *ccs_get_symlink_condition(struct ccs_request_info |
2077 |
|
*r) |
2078 |
|
{ |
2079 |
|
struct ccs_condition *cond; |
2080 |
|
char *buf; |
2081 |
|
int len = 256; |
2082 |
|
const char *symlink = NULL; |
2083 |
|
const struct ccs_profile *profile = ccs_profile(r->profile); |
2084 |
|
if (profile->learning->learning_symlink_target) { |
2085 |
|
symlink = r->obj->symlink_target->name; |
2086 |
|
len += strlen(symlink) + 18; |
2087 |
|
} |
2088 |
|
buf = kmalloc(len, GFP_KERNEL); |
2089 |
|
if (!buf) |
2090 |
|
return NULL; |
2091 |
|
snprintf(buf, len - 1, "if"); |
2092 |
|
if (current->ccs_flags & CCS_TASK_IS_EXECUTE_HANDLER) { |
2093 |
|
const int pos = strlen(buf); |
2094 |
|
snprintf(buf + pos, len - pos - 1, |
2095 |
|
" task.type=execute_handler"); |
2096 |
|
} |
2097 |
|
if (symlink) { |
2098 |
|
const int pos = strlen(buf); |
2099 |
|
snprintf(buf + pos, len - pos - 1, " symlink.target=\"%s\"", |
2100 |
|
symlink); |
2101 |
|
} |
2102 |
|
cond = ccs_get_condition(buf); |
2103 |
|
kfree(buf); |
2104 |
|
return cond; |
2105 |
|
} |
2106 |
|
|
2107 |
/* Wait queue for ccs_query_list. */ |
/* Wait queue for ccs_query_list. */ |
2108 |
static DECLARE_WAIT_QUEUE_HEAD(ccs_query_wait); |
static DECLARE_WAIT_QUEUE_HEAD(ccs_query_wait); |
2109 |
|
|
2167 |
ccs_normalize_line(buffer); |
ccs_normalize_line(buffer); |
2168 |
if (r->ee && !strncmp(buffer, "allow_execute ", 14)) |
if (r->ee && !strncmp(buffer, "allow_execute ", 14)) |
2169 |
cond = ccs_get_execute_condition(r->ee); |
cond = ccs_get_execute_condition(r->ee); |
2170 |
|
else if (r->obj && r->obj->symlink_target) |
2171 |
|
cond = ccs_get_symlink_condition(r); |
2172 |
else if ((current->ccs_flags & CCS_TASK_IS_EXECUTE_HANDLER)) { |
else if ((current->ccs_flags & CCS_TASK_IS_EXECUTE_HANDLER)) { |
2173 |
char str[] = "if task.type=execute_handler"; |
char str[] = "if task.type=execute_handler"; |
2174 |
cond = ccs_get_condition(str); |
cond = ccs_get_condition(str); |
2185 |
int i; |
int i; |
2186 |
if (current->ccs_flags & CCS_DONT_SLEEP_ON_ENFORCE_ERROR) |
if (current->ccs_flags & CCS_DONT_SLEEP_ON_ENFORCE_ERROR) |
2187 |
return -EPERM; |
return -EPERM; |
2188 |
for (i = 0; i < ccs_profile(r->domain->profile)-> |
for (i = 0; i < ccs_profile(r->domain->profile)->enforcing-> |
2189 |
enforcing_penalty; i++) { |
enforcing_penalty; i++) { |
2190 |
set_current_state(TASK_INTERRUPTIBLE); |
set_current_state(TASK_INTERRUPTIBLE); |
2191 |
schedule_timeout(HZ / 10); |
schedule_timeout(HZ / 10); |
2411 |
{ |
{ |
2412 |
if (head->read_eof) |
if (head->read_eof) |
2413 |
return; |
return; |
2414 |
ccs_io_printf(head, "1.7.0-pre"); |
ccs_io_printf(head, "1.7.1-pre"); |
2415 |
head->read_eof = true; |
head->read_eof = true; |
2416 |
} |
} |
2417 |
|
|
2569 |
* Waits for read readiness. |
* Waits for read readiness. |
2570 |
* /proc/ccs/query is handled by /usr/sbin/ccs-queryd and |
* /proc/ccs/query is handled by /usr/sbin/ccs-queryd and |
2571 |
* /proc/ccs/grant_log and /proc/ccs/reject_log are handled by |
* /proc/ccs/grant_log and /proc/ccs/reject_log are handled by |
2572 |
* /usr/sbin/ccs-auditd. |
* /usr/sbin/ccs-auditd . |
2573 |
*/ |
*/ |
2574 |
int ccs_poll_control(struct file *file, poll_table *wait) |
int ccs_poll_control(struct file *file, poll_table *wait) |
2575 |
{ |
{ |