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6
7
8#include <linux/slab.h>
9#include <linux/rculist.h>
10
11#include "common.h"
12
13
14DEFINE_MUTEX(tomoyo_policy_lock);
15
16
17bool tomoyo_policy_loaded;
18
19
20
21
22
23const u8 tomoyo_index2category[TOMOYO_MAX_MAC_INDEX] = {
24
25 [TOMOYO_MAC_FILE_EXECUTE] = TOMOYO_MAC_CATEGORY_FILE,
26 [TOMOYO_MAC_FILE_OPEN] = TOMOYO_MAC_CATEGORY_FILE,
27 [TOMOYO_MAC_FILE_CREATE] = TOMOYO_MAC_CATEGORY_FILE,
28 [TOMOYO_MAC_FILE_UNLINK] = TOMOYO_MAC_CATEGORY_FILE,
29 [TOMOYO_MAC_FILE_GETATTR] = TOMOYO_MAC_CATEGORY_FILE,
30 [TOMOYO_MAC_FILE_MKDIR] = TOMOYO_MAC_CATEGORY_FILE,
31 [TOMOYO_MAC_FILE_RMDIR] = TOMOYO_MAC_CATEGORY_FILE,
32 [TOMOYO_MAC_FILE_MKFIFO] = TOMOYO_MAC_CATEGORY_FILE,
33 [TOMOYO_MAC_FILE_MKSOCK] = TOMOYO_MAC_CATEGORY_FILE,
34 [TOMOYO_MAC_FILE_TRUNCATE] = TOMOYO_MAC_CATEGORY_FILE,
35 [TOMOYO_MAC_FILE_SYMLINK] = TOMOYO_MAC_CATEGORY_FILE,
36 [TOMOYO_MAC_FILE_MKBLOCK] = TOMOYO_MAC_CATEGORY_FILE,
37 [TOMOYO_MAC_FILE_MKCHAR] = TOMOYO_MAC_CATEGORY_FILE,
38 [TOMOYO_MAC_FILE_LINK] = TOMOYO_MAC_CATEGORY_FILE,
39 [TOMOYO_MAC_FILE_RENAME] = TOMOYO_MAC_CATEGORY_FILE,
40 [TOMOYO_MAC_FILE_CHMOD] = TOMOYO_MAC_CATEGORY_FILE,
41 [TOMOYO_MAC_FILE_CHOWN] = TOMOYO_MAC_CATEGORY_FILE,
42 [TOMOYO_MAC_FILE_CHGRP] = TOMOYO_MAC_CATEGORY_FILE,
43 [TOMOYO_MAC_FILE_IOCTL] = TOMOYO_MAC_CATEGORY_FILE,
44 [TOMOYO_MAC_FILE_CHROOT] = TOMOYO_MAC_CATEGORY_FILE,
45 [TOMOYO_MAC_FILE_MOUNT] = TOMOYO_MAC_CATEGORY_FILE,
46 [TOMOYO_MAC_FILE_UMOUNT] = TOMOYO_MAC_CATEGORY_FILE,
47 [TOMOYO_MAC_FILE_PIVOT_ROOT] = TOMOYO_MAC_CATEGORY_FILE,
48
49 [TOMOYO_MAC_NETWORK_INET_STREAM_BIND] =
50 TOMOYO_MAC_CATEGORY_NETWORK,
51 [TOMOYO_MAC_NETWORK_INET_STREAM_LISTEN] =
52 TOMOYO_MAC_CATEGORY_NETWORK,
53 [TOMOYO_MAC_NETWORK_INET_STREAM_CONNECT] =
54 TOMOYO_MAC_CATEGORY_NETWORK,
55 [TOMOYO_MAC_NETWORK_INET_DGRAM_BIND] =
56 TOMOYO_MAC_CATEGORY_NETWORK,
57 [TOMOYO_MAC_NETWORK_INET_DGRAM_SEND] =
58 TOMOYO_MAC_CATEGORY_NETWORK,
59 [TOMOYO_MAC_NETWORK_INET_RAW_BIND] =
60 TOMOYO_MAC_CATEGORY_NETWORK,
61 [TOMOYO_MAC_NETWORK_INET_RAW_SEND] =
62 TOMOYO_MAC_CATEGORY_NETWORK,
63 [TOMOYO_MAC_NETWORK_UNIX_STREAM_BIND] =
64 TOMOYO_MAC_CATEGORY_NETWORK,
65 [TOMOYO_MAC_NETWORK_UNIX_STREAM_LISTEN] =
66 TOMOYO_MAC_CATEGORY_NETWORK,
67 [TOMOYO_MAC_NETWORK_UNIX_STREAM_CONNECT] =
68 TOMOYO_MAC_CATEGORY_NETWORK,
69 [TOMOYO_MAC_NETWORK_UNIX_DGRAM_BIND] =
70 TOMOYO_MAC_CATEGORY_NETWORK,
71 [TOMOYO_MAC_NETWORK_UNIX_DGRAM_SEND] =
72 TOMOYO_MAC_CATEGORY_NETWORK,
73 [TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_BIND] =
74 TOMOYO_MAC_CATEGORY_NETWORK,
75 [TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_LISTEN] =
76 TOMOYO_MAC_CATEGORY_NETWORK,
77 [TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_CONNECT] =
78 TOMOYO_MAC_CATEGORY_NETWORK,
79
80 [TOMOYO_MAC_ENVIRON] = TOMOYO_MAC_CATEGORY_MISC,
81};
82
83
84
85
86
87
88
89
90
91void tomoyo_convert_time(time64_t time64, struct tomoyo_time *stamp)
92{
93 struct tm tm;
94
95 time64_to_tm(time64, 0, &tm);
96 stamp->sec = tm.tm_sec;
97 stamp->min = tm.tm_min;
98 stamp->hour = tm.tm_hour;
99 stamp->day = tm.tm_mday;
100 stamp->month = tm.tm_mon + 1;
101 stamp->year = tm.tm_year + 1900;
102}
103
104
105
106
107
108
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111
112
113
114bool tomoyo_permstr(const char *string, const char *keyword)
115{
116 const char *cp = strstr(string, keyword);
117
118 if (cp)
119 return cp == string || *(cp - 1) == '/';
120 return false;
121}
122
123
124
125
126
127
128
129
130
131
132
133char *tomoyo_read_token(struct tomoyo_acl_param *param)
134{
135 char *pos = param->data;
136 char *del = strchr(pos, ' ');
137
138 if (del)
139 *del++ = '\0';
140 else
141 del = pos + strlen(pos);
142 param->data = del;
143 return pos;
144}
145
146
147
148
149
150
151
152
153const struct tomoyo_path_info *tomoyo_get_domainname
154(struct tomoyo_acl_param *param)
155{
156 char *start = param->data;
157 char *pos = start;
158
159 while (*pos) {
160 if (*pos++ != ' ' || *pos++ == '/')
161 continue;
162 pos -= 2;
163 *pos++ = '\0';
164 break;
165 }
166 param->data = pos;
167 if (tomoyo_correct_domain(start))
168 return tomoyo_get_name(start);
169 return NULL;
170}
171
172
173
174
175
176
177
178
179
180
181
182
183u8 tomoyo_parse_ulong(unsigned long *result, char **str)
184{
185 const char *cp = *str;
186 char *ep;
187 int base = 10;
188
189 if (*cp == '0') {
190 char c = *(cp + 1);
191
192 if (c == 'x' || c == 'X') {
193 base = 16;
194 cp += 2;
195 } else if (c >= '0' && c <= '7') {
196 base = 8;
197 cp++;
198 }
199 }
200 *result = simple_strtoul(cp, &ep, base);
201 if (cp == ep)
202 return TOMOYO_VALUE_TYPE_INVALID;
203 *str = ep;
204 switch (base) {
205 case 16:
206 return TOMOYO_VALUE_TYPE_HEXADECIMAL;
207 case 8:
208 return TOMOYO_VALUE_TYPE_OCTAL;
209 default:
210 return TOMOYO_VALUE_TYPE_DECIMAL;
211 }
212}
213
214
215
216
217
218
219
220
221
222
223
224void tomoyo_print_ulong(char *buffer, const int buffer_len,
225 const unsigned long value, const u8 type)
226{
227 if (type == TOMOYO_VALUE_TYPE_DECIMAL)
228 snprintf(buffer, buffer_len, "%lu", value);
229 else if (type == TOMOYO_VALUE_TYPE_OCTAL)
230 snprintf(buffer, buffer_len, "0%lo", value);
231 else if (type == TOMOYO_VALUE_TYPE_HEXADECIMAL)
232 snprintf(buffer, buffer_len, "0x%lX", value);
233 else
234 snprintf(buffer, buffer_len, "type(%u)", type);
235}
236
237
238
239
240
241
242
243
244
245bool tomoyo_parse_name_union(struct tomoyo_acl_param *param,
246 struct tomoyo_name_union *ptr)
247{
248 char *filename;
249
250 if (param->data[0] == '@') {
251 param->data++;
252 ptr->group = tomoyo_get_group(param, TOMOYO_PATH_GROUP);
253 return ptr->group != NULL;
254 }
255 filename = tomoyo_read_token(param);
256 if (!tomoyo_correct_word(filename))
257 return false;
258 ptr->filename = tomoyo_get_name(filename);
259 return ptr->filename != NULL;
260}
261
262
263
264
265
266
267
268
269
270bool tomoyo_parse_number_union(struct tomoyo_acl_param *param,
271 struct tomoyo_number_union *ptr)
272{
273 char *data;
274 u8 type;
275 unsigned long v;
276
277 memset(ptr, 0, sizeof(*ptr));
278 if (param->data[0] == '@') {
279 param->data++;
280 ptr->group = tomoyo_get_group(param, TOMOYO_NUMBER_GROUP);
281 return ptr->group != NULL;
282 }
283 data = tomoyo_read_token(param);
284 type = tomoyo_parse_ulong(&v, &data);
285 if (type == TOMOYO_VALUE_TYPE_INVALID)
286 return false;
287 ptr->values[0] = v;
288 ptr->value_type[0] = type;
289 if (!*data) {
290 ptr->values[1] = v;
291 ptr->value_type[1] = type;
292 return true;
293 }
294 if (*data++ != '-')
295 return false;
296 type = tomoyo_parse_ulong(&v, &data);
297 if (type == TOMOYO_VALUE_TYPE_INVALID || *data || ptr->values[0] > v)
298 return false;
299 ptr->values[1] = v;
300 ptr->value_type[1] = type;
301 return true;
302}
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309
310
311
312
313
314static inline bool tomoyo_byte_range(const char *str)
315{
316 return *str >= '0' && *str++ <= '3' &&
317 *str >= '0' && *str++ <= '7' &&
318 *str >= '0' && *str <= '7';
319}
320
321
322
323
324
325
326
327
328static inline bool tomoyo_alphabet_char(const char c)
329{
330 return (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z');
331}
332
333
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335
336
337
338
339
340
341
342static inline u8 tomoyo_make_byte(const u8 c1, const u8 c2, const u8 c3)
343{
344 return ((c1 - '0') << 6) + ((c2 - '0') << 3) + (c3 - '0');
345}
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351
352
353
354static inline bool tomoyo_valid(const unsigned char c)
355{
356 return c > ' ' && c < 127;
357}
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364
365
366static inline bool tomoyo_invalid(const unsigned char c)
367{
368 return c && (c <= ' ' || c >= 127);
369}
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380
381
382bool tomoyo_str_starts(char **src, const char *find)
383{
384 const int len = strlen(find);
385 char *tmp = *src;
386
387 if (strncmp(tmp, find, len))
388 return false;
389 tmp += len;
390 *src = tmp;
391 return true;
392}
393
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397
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402
403
404void tomoyo_normalize_line(unsigned char *buffer)
405{
406 unsigned char *sp = buffer;
407 unsigned char *dp = buffer;
408 bool first = true;
409
410 while (tomoyo_invalid(*sp))
411 sp++;
412 while (*sp) {
413 if (!first)
414 *dp++ = ' ';
415 first = false;
416 while (tomoyo_valid(*sp))
417 *dp++ = *sp++;
418 while (tomoyo_invalid(*sp))
419 sp++;
420 }
421 *dp = '\0';
422}
423
424
425
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431
432
433static bool tomoyo_correct_word2(const char *string, size_t len)
434{
435 const char *const start = string;
436 bool in_repetition = false;
437 unsigned char c;
438 unsigned char d;
439 unsigned char e;
440
441 if (!len)
442 goto out;
443 while (len--) {
444 c = *string++;
445 if (c == '\\') {
446 if (!len--)
447 goto out;
448 c = *string++;
449 switch (c) {
450 case '\\':
451 continue;
452 case '$':
453 case '+':
454 case '?':
455 case '*':
456 case '@':
457 case 'x':
458 case 'X':
459 case 'a':
460 case 'A':
461 case '-':
462 continue;
463 case '{':
464 if (string - 3 < start || *(string - 3) != '/')
465 break;
466 in_repetition = true;
467 continue;
468 case '}':
469 if (*string != '/')
470 break;
471 if (!in_repetition)
472 break;
473 in_repetition = false;
474 continue;
475 case '0':
476 case '1':
477 case '2':
478 case '3':
479 if (!len-- || !len--)
480 break;
481 d = *string++;
482 e = *string++;
483 if (d < '0' || d > '7' || e < '0' || e > '7')
484 break;
485 c = tomoyo_make_byte(c, d, e);
486 if (c <= ' ' || c >= 127)
487 continue;
488 }
489 goto out;
490 } else if (in_repetition && c == '/') {
491 goto out;
492 } else if (c <= ' ' || c >= 127) {
493 goto out;
494 }
495 }
496 if (in_repetition)
497 goto out;
498 return true;
499 out:
500 return false;
501}
502
503
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509
510
511bool tomoyo_correct_word(const char *string)
512{
513 return tomoyo_correct_word2(string, strlen(string));
514}
515
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520
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522
523
524bool tomoyo_correct_path(const char *filename)
525{
526 return *filename == '/' && tomoyo_correct_word(filename);
527}
528
529
530
531
532
533
534
535
536bool tomoyo_correct_domain(const unsigned char *domainname)
537{
538 if (!domainname || !tomoyo_domain_def(domainname))
539 return false;
540 domainname = strchr(domainname, ' ');
541 if (!domainname++)
542 return true;
543 while (1) {
544 const unsigned char *cp = strchr(domainname, ' ');
545
546 if (!cp)
547 break;
548 if (*domainname != '/' ||
549 !tomoyo_correct_word2(domainname, cp - domainname))
550 return false;
551 domainname = cp + 1;
552 }
553 return tomoyo_correct_path(domainname);
554}
555
556
557
558
559
560
561
562
563bool tomoyo_domain_def(const unsigned char *buffer)
564{
565 const unsigned char *cp;
566 int len;
567
568 if (*buffer != '<')
569 return false;
570 cp = strchr(buffer, ' ');
571 if (!cp)
572 len = strlen(buffer);
573 else
574 len = cp - buffer;
575 if (buffer[len - 1] != '>' ||
576 !tomoyo_correct_word2(buffer + 1, len - 2))
577 return false;
578 return true;
579}
580
581
582
583
584
585
586
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588
589
590struct tomoyo_domain_info *tomoyo_find_domain(const char *domainname)
591{
592 struct tomoyo_domain_info *domain;
593 struct tomoyo_path_info name;
594
595 name.name = domainname;
596 tomoyo_fill_path_info(&name);
597 list_for_each_entry_rcu(domain, &tomoyo_domain_list, list) {
598 if (!domain->is_deleted &&
599 !tomoyo_pathcmp(&name, domain->domainname))
600 return domain;
601 }
602 return NULL;
603}
604
605
606
607
608
609
610
611
612static int tomoyo_const_part_length(const char *filename)
613{
614 char c;
615 int len = 0;
616
617 if (!filename)
618 return 0;
619 while ((c = *filename++) != '\0') {
620 if (c != '\\') {
621 len++;
622 continue;
623 }
624 c = *filename++;
625 switch (c) {
626 case '\\':
627 len += 2;
628 continue;
629 case '0':
630 case '1':
631 case '2':
632 case '3':
633 c = *filename++;
634 if (c < '0' || c > '7')
635 break;
636 c = *filename++;
637 if (c < '0' || c > '7')
638 break;
639 len += 4;
640 continue;
641 }
642 break;
643 }
644 return len;
645}
646
647
648
649
650
651
652
653
654void tomoyo_fill_path_info(struct tomoyo_path_info *ptr)
655{
656 const char *name = ptr->name;
657 const int len = strlen(name);
658
659 ptr->const_len = tomoyo_const_part_length(name);
660 ptr->is_dir = len && (name[len - 1] == '/');
661 ptr->is_patterned = (ptr->const_len < len);
662 ptr->hash = full_name_hash(NULL, name, len);
663}
664
665
666
667
668
669
670
671
672
673
674
675static bool tomoyo_file_matches_pattern2(const char *filename,
676 const char *filename_end,
677 const char *pattern,
678 const char *pattern_end)
679{
680 while (filename < filename_end && pattern < pattern_end) {
681 char c;
682 int i;
683 int j;
684
685 if (*pattern != '\\') {
686 if (*filename++ != *pattern++)
687 return false;
688 continue;
689 }
690 c = *filename;
691 pattern++;
692 switch (*pattern) {
693 case '?':
694 if (c == '/') {
695 return false;
696 } else if (c == '\\') {
697 if (filename[1] == '\\')
698 filename++;
699 else if (tomoyo_byte_range(filename + 1))
700 filename += 3;
701 else
702 return false;
703 }
704 break;
705 case '\\':
706 if (c != '\\')
707 return false;
708 if (*++filename != '\\')
709 return false;
710 break;
711 case '+':
712 if (!isdigit(c))
713 return false;
714 break;
715 case 'x':
716 if (!isxdigit(c))
717 return false;
718 break;
719 case 'a':
720 if (!tomoyo_alphabet_char(c))
721 return false;
722 break;
723 case '0':
724 case '1':
725 case '2':
726 case '3':
727 if (c == '\\' && tomoyo_byte_range(filename + 1)
728 && strncmp(filename + 1, pattern, 3) == 0) {
729 filename += 3;
730 pattern += 2;
731 break;
732 }
733 return false;
734 case '*':
735 case '@':
736 for (i = 0; i <= filename_end - filename; i++) {
737 if (tomoyo_file_matches_pattern2(
738 filename + i, filename_end,
739 pattern + 1, pattern_end))
740 return true;
741 c = filename[i];
742 if (c == '.' && *pattern == '@')
743 break;
744 if (c != '\\')
745 continue;
746 if (filename[i + 1] == '\\')
747 i++;
748 else if (tomoyo_byte_range(filename + i + 1))
749 i += 3;
750 else
751 break;
752 }
753 return false;
754 default:
755 j = 0;
756 c = *pattern;
757 if (c == '$') {
758 while (isdigit(filename[j]))
759 j++;
760 } else if (c == 'X') {
761 while (isxdigit(filename[j]))
762 j++;
763 } else if (c == 'A') {
764 while (tomoyo_alphabet_char(filename[j]))
765 j++;
766 }
767 for (i = 1; i <= j; i++) {
768 if (tomoyo_file_matches_pattern2(
769 filename + i, filename_end,
770 pattern + 1, pattern_end))
771 return true;
772 }
773 return false;
774 }
775 filename++;
776 pattern++;
777 }
778 while (*pattern == '\\' &&
779 (*(pattern + 1) == '*' || *(pattern + 1) == '@'))
780 pattern += 2;
781 return filename == filename_end && pattern == pattern_end;
782}
783
784
785
786
787
788
789
790
791
792
793
794static bool tomoyo_file_matches_pattern(const char *filename,
795 const char *filename_end,
796 const char *pattern,
797 const char *pattern_end)
798{
799 const char *pattern_start = pattern;
800 bool first = true;
801 bool result;
802
803 while (pattern < pattern_end - 1) {
804
805 if (*pattern++ != '\\' || *pattern++ != '-')
806 continue;
807 result = tomoyo_file_matches_pattern2(filename,
808 filename_end,
809 pattern_start,
810 pattern - 2);
811 if (first)
812 result = !result;
813 if (result)
814 return false;
815 first = false;
816 pattern_start = pattern;
817 }
818 result = tomoyo_file_matches_pattern2(filename, filename_end,
819 pattern_start, pattern_end);
820 return first ? result : !result;
821}
822
823
824
825
826
827
828
829
830
831static bool tomoyo_path_matches_pattern2(const char *f, const char *p)
832{
833 const char *f_delimiter;
834 const char *p_delimiter;
835
836 while (*f && *p) {
837 f_delimiter = strchr(f, '/');
838 if (!f_delimiter)
839 f_delimiter = f + strlen(f);
840 p_delimiter = strchr(p, '/');
841 if (!p_delimiter)
842 p_delimiter = p + strlen(p);
843 if (*p == '\\' && *(p + 1) == '{')
844 goto recursive;
845 if (!tomoyo_file_matches_pattern(f, f_delimiter, p,
846 p_delimiter))
847 return false;
848 f = f_delimiter;
849 if (*f)
850 f++;
851 p = p_delimiter;
852 if (*p)
853 p++;
854 }
855
856 while (*p == '\\' &&
857 (*(p + 1) == '*' || *(p + 1) == '@'))
858 p += 2;
859 return !*f && !*p;
860 recursive:
861
862
863
864
865
866
867 if (*(p - 1) != '/' || p_delimiter <= p + 3 || *p_delimiter != '/' ||
868 *(p_delimiter - 1) != '}' || *(p_delimiter - 2) != '\\')
869 return false;
870 do {
871
872 if (!tomoyo_file_matches_pattern(f, f_delimiter, p + 2,
873 p_delimiter - 2))
874 break;
875
876 f = f_delimiter;
877 if (!*f)
878 break;
879 f++;
880
881 if (tomoyo_path_matches_pattern2(f, p_delimiter + 1))
882 return true;
883 f_delimiter = strchr(f, '/');
884 } while (f_delimiter);
885 return false;
886}
887
888
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890
891
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895
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912
913
914bool tomoyo_path_matches_pattern(const struct tomoyo_path_info *filename,
915 const struct tomoyo_path_info *pattern)
916{
917 const char *f = filename->name;
918 const char *p = pattern->name;
919 const int len = pattern->const_len;
920
921
922 if (!pattern->is_patterned)
923 return !tomoyo_pathcmp(filename, pattern);
924
925 if (filename->is_dir != pattern->is_dir)
926 return false;
927
928 if (strncmp(f, p, len))
929 return false;
930 f += len;
931 p += len;
932 return tomoyo_path_matches_pattern2(f, p);
933}
934
935
936
937
938
939
940
941
942
943const char *tomoyo_get_exe(void)
944{
945 struct file *exe_file;
946 const char *cp;
947 struct mm_struct *mm = current->mm;
948
949 if (!mm)
950 return NULL;
951 exe_file = get_mm_exe_file(mm);
952 if (!exe_file)
953 return NULL;
954
955 cp = tomoyo_realpath_from_path(&exe_file->f_path);
956 fput(exe_file);
957 return cp;
958}
959
960
961
962
963
964
965
966
967
968
969int tomoyo_get_mode(const struct tomoyo_policy_namespace *ns, const u8 profile,
970 const u8 index)
971{
972 u8 mode;
973 struct tomoyo_profile *p;
974
975 if (!tomoyo_policy_loaded)
976 return TOMOYO_CONFIG_DISABLED;
977 p = tomoyo_profile(ns, profile);
978 mode = p->config[index];
979 if (mode == TOMOYO_CONFIG_USE_DEFAULT)
980 mode = p->config[tomoyo_index2category[index]
981 + TOMOYO_MAX_MAC_INDEX];
982 if (mode == TOMOYO_CONFIG_USE_DEFAULT)
983 mode = p->default_config;
984 return mode & 3;
985}
986
987
988
989
990
991
992
993
994
995
996int tomoyo_init_request_info(struct tomoyo_request_info *r,
997 struct tomoyo_domain_info *domain, const u8 index)
998{
999 u8 profile;
1000
1001 memset(r, 0, sizeof(*r));
1002 if (!domain)
1003 domain = tomoyo_domain();
1004 r->domain = domain;
1005 profile = domain->profile;
1006 r->profile = profile;
1007 r->type = index;
1008 r->mode = tomoyo_get_mode(domain->ns, profile, index);
1009 return r->mode;
1010}
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r)
1022{
1023 unsigned int count = 0;
1024 struct tomoyo_domain_info *domain = r->domain;
1025 struct tomoyo_acl_info *ptr;
1026
1027 if (r->mode != TOMOYO_CONFIG_LEARNING)
1028 return false;
1029 if (!domain)
1030 return true;
1031 list_for_each_entry_rcu(ptr, &domain->acl_info_list, list) {
1032 u16 perm;
1033 u8 i;
1034
1035 if (ptr->is_deleted)
1036 continue;
1037 switch (ptr->type) {
1038 case TOMOYO_TYPE_PATH_ACL:
1039 perm = container_of(ptr, struct tomoyo_path_acl, head)
1040 ->perm;
1041 break;
1042 case TOMOYO_TYPE_PATH2_ACL:
1043 perm = container_of(ptr, struct tomoyo_path2_acl, head)
1044 ->perm;
1045 break;
1046 case TOMOYO_TYPE_PATH_NUMBER_ACL:
1047 perm = container_of(ptr, struct tomoyo_path_number_acl,
1048 head)->perm;
1049 break;
1050 case TOMOYO_TYPE_MKDEV_ACL:
1051 perm = container_of(ptr, struct tomoyo_mkdev_acl,
1052 head)->perm;
1053 break;
1054 case TOMOYO_TYPE_INET_ACL:
1055 perm = container_of(ptr, struct tomoyo_inet_acl,
1056 head)->perm;
1057 break;
1058 case TOMOYO_TYPE_UNIX_ACL:
1059 perm = container_of(ptr, struct tomoyo_unix_acl,
1060 head)->perm;
1061 break;
1062 case TOMOYO_TYPE_MANUAL_TASK_ACL:
1063 perm = 0;
1064 break;
1065 default:
1066 perm = 1;
1067 }
1068 for (i = 0; i < 16; i++)
1069 if (perm & (1 << i))
1070 count++;
1071 }
1072 if (count < tomoyo_profile(domain->ns, domain->profile)->
1073 pref[TOMOYO_PREF_MAX_LEARNING_ENTRY])
1074 return true;
1075 if (!domain->flags[TOMOYO_DIF_QUOTA_WARNED]) {
1076 domain->flags[TOMOYO_DIF_QUOTA_WARNED] = true;
1077
1078 tomoyo_write_log(r, "%s", tomoyo_dif[TOMOYO_DIF_QUOTA_WARNED]);
1079#ifndef CONFIG_SECURITY_TOMOYO_INSECURE_BUILTIN_SETTING
1080 pr_warn("WARNING: Domain '%s' has too many ACLs to hold. Stopped learning mode.\n",
1081 domain->domainname->name);
1082#endif
1083 }
1084 return false;
1085}
1086