Lines Matching +full:rc +full:- +full:map +full:- +full:name
1 // SPDX-License-Identifier: GPL-2.0-only
17 * Updated: Hewlett-Packard <paul@paul-moore.com>
35 * Copyright (C) 2006, 2007 Hewlett-Packard Development Company, L.P.
36 * Copyright (C) 2004-2006 Trusted Computer Solutions, Inc.
37 * Copyright (C) 2003 - 2004, 2006 Tresys Technology, LLC
96 const struct security_class_mapping *map, in selinux_set_mapping() argument
103 if (!map) in selinux_set_mapping()
104 return -EINVAL; in selinux_set_mapping()
106 while (map[i].name) in selinux_set_mapping()
110 out_map->mapping = kcalloc(++i, sizeof(*out_map->mapping), GFP_ATOMIC); in selinux_set_mapping()
111 if (!out_map->mapping) in selinux_set_mapping()
112 return -ENOMEM; in selinux_set_mapping()
116 while (map[j].name) { in selinux_set_mapping()
117 const struct security_class_mapping *p_in = map + (j++); in selinux_set_mapping()
118 struct selinux_mapping *p_out = out_map->mapping + j; in selinux_set_mapping()
122 if (!strcmp(p_in->name, "")) { in selinux_set_mapping()
123 p_out->num_perms = 0; in selinux_set_mapping()
127 p_out->value = string_to_security_class(pol, p_in->name); in selinux_set_mapping()
128 if (!p_out->value) { in selinux_set_mapping()
130 p_in->name); in selinux_set_mapping()
131 if (pol->reject_unknown) in selinux_set_mapping()
133 p_out->num_perms = 0; in selinux_set_mapping()
139 while (p_in->perms[k]) { in selinux_set_mapping()
141 if (!*p_in->perms[k]) { in selinux_set_mapping()
145 p_out->perms[k] = string_to_av_perm(pol, p_out->value, in selinux_set_mapping()
146 p_in->perms[k]); in selinux_set_mapping()
147 if (!p_out->perms[k]) { in selinux_set_mapping()
149 p_in->perms[k], p_in->name); in selinux_set_mapping()
150 if (pol->reject_unknown) in selinux_set_mapping()
157 p_out->num_perms = k; in selinux_set_mapping()
162 pol->allow_unknown ? "allowed" : "denied"); in selinux_set_mapping()
164 out_map->size = i; in selinux_set_mapping()
167 kfree(out_map->mapping); in selinux_set_mapping()
168 out_map->mapping = NULL; in selinux_set_mapping()
169 return -EINVAL; in selinux_set_mapping()
176 static u16 unmap_class(struct selinux_map *map, u16 tclass) in unmap_class() argument
178 if (tclass < map->size) in unmap_class()
179 return map->mapping[tclass].value; in unmap_class()
187 static u16 map_class(struct selinux_map *map, u16 pol_value) in map_class() argument
191 for (i = 1; i < map->size; i++) { in map_class()
192 if (map->mapping[i].value == pol_value) in map_class()
199 static void map_decision(struct selinux_map *map, in map_decision() argument
203 if (tclass < map->size) { in map_decision()
204 struct selinux_mapping *mapping = &map->mapping[tclass]; in map_decision()
205 unsigned int i, n = mapping->num_perms; in map_decision()
209 if (avd->allowed & mapping->perms[i]) in map_decision()
211 if (allow_unknown && !mapping->perms[i]) in map_decision()
214 avd->allowed = result; in map_decision()
217 if (avd->auditallow & mapping->perms[i]) in map_decision()
219 avd->auditallow = result; in map_decision()
222 if (avd->auditdeny & mapping->perms[i]) in map_decision()
224 if (!allow_unknown && !mapping->perms[i]) in map_decision()
234 avd->auditdeny = result; in map_decision()
248 mls_enabled = policy->policydb.mls_enabled; in security_mls_enabled()
276 int sp = -1; in constraint_expr_eval()
278 for (e = cexpr; e; e = e->next) { in constraint_expr_eval()
279 switch (e->expr_type) { in constraint_expr_eval()
286 sp--; in constraint_expr_eval()
291 sp--; in constraint_expr_eval()
295 if (sp == (CEXPR_MAXDEPTH - 1)) in constraint_expr_eval()
297 switch (e->attr) { in constraint_expr_eval()
299 val1 = scontext->user; in constraint_expr_eval()
300 val2 = tcontext->user; in constraint_expr_eval()
303 val1 = scontext->type; in constraint_expr_eval()
304 val2 = tcontext->type; in constraint_expr_eval()
307 val1 = scontext->role; in constraint_expr_eval()
308 val2 = tcontext->role; in constraint_expr_eval()
309 r1 = policydb->role_val_to_struct[val1 - 1]; in constraint_expr_eval()
310 r2 = policydb->role_val_to_struct[val2 - 1]; in constraint_expr_eval()
311 switch (e->op) { in constraint_expr_eval()
313 s[++sp] = ebitmap_get_bit(&r1->dominates, in constraint_expr_eval()
314 val2 - 1); in constraint_expr_eval()
317 s[++sp] = ebitmap_get_bit(&r2->dominates, in constraint_expr_eval()
318 val1 - 1); in constraint_expr_eval()
321 s[++sp] = (!ebitmap_get_bit(&r1->dominates, in constraint_expr_eval()
322 val2 - 1) && in constraint_expr_eval()
323 !ebitmap_get_bit(&r2->dominates, in constraint_expr_eval()
324 val1 - 1)); in constraint_expr_eval()
331 l1 = &(scontext->range.level[0]); in constraint_expr_eval()
332 l2 = &(tcontext->range.level[0]); in constraint_expr_eval()
335 l1 = &(scontext->range.level[0]); in constraint_expr_eval()
336 l2 = &(tcontext->range.level[1]); in constraint_expr_eval()
339 l1 = &(scontext->range.level[1]); in constraint_expr_eval()
340 l2 = &(tcontext->range.level[0]); in constraint_expr_eval()
343 l1 = &(scontext->range.level[1]); in constraint_expr_eval()
344 l2 = &(tcontext->range.level[1]); in constraint_expr_eval()
347 l1 = &(scontext->range.level[0]); in constraint_expr_eval()
348 l2 = &(scontext->range.level[1]); in constraint_expr_eval()
351 l1 = &(tcontext->range.level[0]); in constraint_expr_eval()
352 l2 = &(tcontext->range.level[1]); in constraint_expr_eval()
355 switch (e->op) { in constraint_expr_eval()
381 switch (e->op) { in constraint_expr_eval()
394 if (sp == (CEXPR_MAXDEPTH-1)) in constraint_expr_eval()
397 if (e->attr & CEXPR_TARGET) in constraint_expr_eval()
399 else if (e->attr & CEXPR_XTARGET) { in constraint_expr_eval()
406 if (e->attr & CEXPR_USER) in constraint_expr_eval()
407 val1 = c->user; in constraint_expr_eval()
408 else if (e->attr & CEXPR_ROLE) in constraint_expr_eval()
409 val1 = c->role; in constraint_expr_eval()
410 else if (e->attr & CEXPR_TYPE) in constraint_expr_eval()
411 val1 = c->type; in constraint_expr_eval()
417 switch (e->op) { in constraint_expr_eval()
419 s[++sp] = ebitmap_get_bit(&e->names, val1 - 1); in constraint_expr_eval()
422 s[++sp] = !ebitmap_get_bit(&e->names, val1 - 1); in constraint_expr_eval()
440 * security_dump_masked_av - dumps masked permissions during
448 BUG_ON(pdatum->value < 1 || pdatum->value > 32); in dump_masked_av_helper()
450 permission_names[pdatum->value - 1] = (char *)k; in dump_masked_av_helper()
476 tclass_name = sym_name(policydb, SYM_CLASSES, tclass - 1); in security_dump_masked_av()
477 tclass_dat = policydb->class_val_to_struct[tclass - 1]; in security_dump_masked_av()
478 common_dat = tclass_dat->comdatum; in security_dump_masked_av()
482 hashtab_map(&common_dat->permissions.table, in security_dump_masked_av()
486 if (hashtab_map(&tclass_dat->permissions.table, in security_dump_masked_av()
529 * security_boundary_permission - drops violated permissions
545 source = policydb->type_val_to_struct[scontext->type - 1]; in type_attribute_bounds_av()
548 if (!source->bounds) in type_attribute_bounds_av()
551 target = policydb->type_val_to_struct[tcontext->type - 1]; in type_attribute_bounds_av()
557 lo_scontext.type = source->bounds; in type_attribute_bounds_av()
559 if (target->bounds) { in type_attribute_bounds_av()
561 lo_tcontext.type = target->bounds; in type_attribute_bounds_av()
571 masked = ~lo_avd.allowed & avd->allowed; in type_attribute_bounds_av()
577 avd->allowed &= ~masked; in type_attribute_bounds_av()
593 switch (node->datum.u.xperms->specified) { in services_compute_xperms_drivers()
595 xperms->base_perms |= AVC_EXT_IOCTL; in services_compute_xperms_drivers()
597 for (i = 0; i < ARRAY_SIZE(xperms->drivers.p); i++) in services_compute_xperms_drivers()
598 xperms->drivers.p[i] |= node->datum.u.xperms->perms.p[i]; in services_compute_xperms_drivers()
601 xperms->base_perms |= AVC_EXT_IOCTL; in services_compute_xperms_drivers()
603 security_xperm_set(xperms->drivers.p, in services_compute_xperms_drivers()
604 node->datum.u.xperms->driver); in services_compute_xperms_drivers()
607 xperms->base_perms |= AVC_EXT_NLMSG; in services_compute_xperms_drivers()
609 security_xperm_set(xperms->drivers.p, in services_compute_xperms_drivers()
610 node->datum.u.xperms->driver); in services_compute_xperms_drivers()
614 xperms->len = 1; in services_compute_xperms_drivers()
637 avd->allowed = 0; in context_struct_compute_av()
638 avd->auditallow = 0; in context_struct_compute_av()
639 avd->auditdeny = 0xffffffff; in context_struct_compute_av()
644 if (unlikely(!tclass || tclass > policydb->p_classes.nprim)) { in context_struct_compute_av()
649 tclass_datum = policydb->class_val_to_struct[tclass - 1]; in context_struct_compute_av()
657 sattr = &policydb->type_attr_map_array[scontext->type - 1]; in context_struct_compute_av()
658 tattr = &policydb->type_attr_map_array[tcontext->type - 1]; in context_struct_compute_av()
663 for (node = avtab_search_node(&policydb->te_avtab, in context_struct_compute_av()
667 if (node->key.specified == AVTAB_ALLOWED) in context_struct_compute_av()
668 avd->allowed |= node->datum.u.data; in context_struct_compute_av()
669 else if (node->key.specified == AVTAB_AUDITALLOW) in context_struct_compute_av()
670 avd->auditallow |= node->datum.u.data; in context_struct_compute_av()
671 else if (node->key.specified == AVTAB_AUDITDENY) in context_struct_compute_av()
672 avd->auditdeny &= node->datum.u.data; in context_struct_compute_av()
673 else if (xperms && (node->key.specified & AVTAB_XPERMS)) in context_struct_compute_av()
678 cond_compute_av(&policydb->te_cond_avtab, &avkey, in context_struct_compute_av()
688 constraint = tclass_datum->constraints; in context_struct_compute_av()
690 if ((constraint->permissions & (avd->allowed)) && in context_struct_compute_av()
692 constraint->expr)) { in context_struct_compute_av()
693 avd->allowed &= ~(constraint->permissions); in context_struct_compute_av()
695 constraint = constraint->next; in context_struct_compute_av()
703 if (tclass == policydb->process_class && in context_struct_compute_av()
704 (avd->allowed & policydb->process_trans_perms) && in context_struct_compute_av()
705 scontext->role != tcontext->role) { in context_struct_compute_av()
706 for (ra = policydb->role_allow; ra; ra = ra->next) { in context_struct_compute_av()
707 if (scontext->role == ra->role && in context_struct_compute_av()
708 tcontext->role == ra->new_role) in context_struct_compute_av()
712 avd->allowed &= ~policydb->process_trans_perms; in context_struct_compute_av()
730 struct policydb *p = &policy->policydb; in security_validtrans_handle_fail()
731 struct sidtab *sidtab = policy->sidtab; in security_validtrans_handle_fail()
744 o, n, t, sym_name(p, SYM_CLASSES, tclass-1)); in security_validtrans_handle_fail()
752 return -EPERM; in security_validtrans_handle_fail()
767 int rc = 0; in security_compute_validatetrans() local
776 policydb = &policy->policydb; in security_compute_validatetrans()
777 sidtab = policy->sidtab; in security_compute_validatetrans()
780 tclass = unmap_class(&policy->map, orig_tclass); in security_compute_validatetrans()
784 if (!tclass || tclass > policydb->p_classes.nprim) { in security_compute_validatetrans()
785 rc = -EINVAL; in security_compute_validatetrans()
788 tclass_datum = policydb->class_val_to_struct[tclass - 1]; in security_compute_validatetrans()
794 rc = -EINVAL; in security_compute_validatetrans()
802 rc = -EINVAL; in security_compute_validatetrans()
810 rc = -EINVAL; in security_compute_validatetrans()
814 constraint = tclass_datum->validatetrans; in security_compute_validatetrans()
816 if (!constraint_expr_eval(policydb, &oentry->context, in security_compute_validatetrans()
817 &nentry->context, &tentry->context, in security_compute_validatetrans()
818 constraint->expr)) { in security_compute_validatetrans()
820 rc = -EPERM; in security_compute_validatetrans()
822 rc = security_validtrans_handle_fail(policy, in security_compute_validatetrans()
829 constraint = constraint->next; in security_compute_validatetrans()
834 return rc; in security_compute_validatetrans()
852 * security_bounded_transition - check whether the given
868 int rc; in security_bounded_transition() local
875 policydb = &policy->policydb; in security_bounded_transition()
876 sidtab = policy->sidtab; in security_bounded_transition()
878 rc = -EINVAL; in security_bounded_transition()
886 rc = -EINVAL; in security_bounded_transition()
894 rc = 0; in security_bounded_transition()
896 if (old_entry->context.type == new_entry->context.type) in security_bounded_transition()
899 index = new_entry->context.type; in security_bounded_transition()
901 type = policydb->type_val_to_struct[index - 1]; in security_bounded_transition()
905 rc = -EPERM; in security_bounded_transition()
906 if (!type->bounds) in security_bounded_transition()
910 rc = 0; in security_bounded_transition()
911 if (type->bounds == old_entry->context.type) in security_bounded_transition()
914 index = type->bounds; in security_bounded_transition()
917 if (rc) { in security_bounded_transition()
939 return rc; in security_bounded_transition()
944 avd->allowed = 0; in avd_init()
945 avd->auditallow = 0; in avd_init()
946 avd->auditdeny = 0xffffffff; in avd_init()
948 avd->seqno = policy->latest_granting; in avd_init()
950 avd->seqno = 0; in avd_init()
951 avd->flags = 0; in avd_init()
962 memset(xp_data->p, 0xff, sizeof(xp_data->p)); in update_xperms_extended_data()
966 for (i = 0; i < ARRAY_SIZE(xp_data->p); i++) in update_xperms_extended_data()
967 xp_data->p[i] |= from->p[i]; in update_xperms_extended_data()
978 switch (node->datum.u.xperms->specified) { in services_compute_xperms_decision()
980 if (xpermd->base_perm != AVC_EXT_IOCTL || in services_compute_xperms_decision()
981 xpermd->driver != node->datum.u.xperms->driver) in services_compute_xperms_decision()
985 if (xpermd->base_perm != AVC_EXT_IOCTL || in services_compute_xperms_decision()
986 !security_xperm_test(node->datum.u.xperms->perms.p, in services_compute_xperms_decision()
987 xpermd->driver)) in services_compute_xperms_decision()
991 if (xpermd->base_perm != AVC_EXT_NLMSG || in services_compute_xperms_decision()
992 xpermd->driver != node->datum.u.xperms->driver) in services_compute_xperms_decision()
998 node->datum.u.xperms->specified); in services_compute_xperms_decision()
1002 specified = node->key.specified & ~(AVTAB_ENABLED | AVTAB_ENABLED_OLD); in services_compute_xperms_decision()
1005 xpermd->used |= XPERMS_ALLOWED; in services_compute_xperms_decision()
1006 update_xperms_extended_data(node->datum.u.xperms->specified, in services_compute_xperms_decision()
1007 &node->datum.u.xperms->perms, in services_compute_xperms_decision()
1008 xpermd->allowed); in services_compute_xperms_decision()
1010 xpermd->used |= XPERMS_AUDITALLOW; in services_compute_xperms_decision()
1011 update_xperms_extended_data(node->datum.u.xperms->specified, in services_compute_xperms_decision()
1012 &node->datum.u.xperms->perms, in services_compute_xperms_decision()
1013 xpermd->auditallow); in services_compute_xperms_decision()
1015 xpermd->used |= XPERMS_DONTAUDIT; in services_compute_xperms_decision()
1016 update_xperms_extended_data(node->datum.u.xperms->specified, in services_compute_xperms_decision()
1017 &node->datum.u.xperms->perms, in services_compute_xperms_decision()
1018 xpermd->dontaudit); in services_compute_xperms_decision()
1021 node->key.specified); in services_compute_xperms_decision()
1043 xpermd->base_perm = base_perm; in security_compute_xperms_decision()
1044 xpermd->driver = driver; in security_compute_xperms_decision()
1045 xpermd->used = 0; in security_compute_xperms_decision()
1046 memset(xpermd->allowed->p, 0, sizeof(xpermd->allowed->p)); in security_compute_xperms_decision()
1047 memset(xpermd->auditallow->p, 0, sizeof(xpermd->auditallow->p)); in security_compute_xperms_decision()
1048 memset(xpermd->dontaudit->p, 0, sizeof(xpermd->dontaudit->p)); in security_compute_xperms_decision()
1055 policydb = &policy->policydb; in security_compute_xperms_decision()
1056 sidtab = policy->sidtab; in security_compute_xperms_decision()
1072 tclass = unmap_class(&policy->map, orig_tclass); in security_compute_xperms_decision()
1074 if (policydb->allow_unknown) in security_compute_xperms_decision()
1080 if (unlikely(!tclass || tclass > policydb->p_classes.nprim)) { in security_compute_xperms_decision()
1087 sattr = &policydb->type_attr_map_array[scontext->type - 1]; in security_compute_xperms_decision()
1088 tattr = &policydb->type_attr_map_array[tcontext->type - 1]; in security_compute_xperms_decision()
1093 for (node = avtab_search_node(&policydb->te_avtab, in security_compute_xperms_decision()
1099 cond_compute_xperms(&policydb->te_cond_avtab, in security_compute_xperms_decision()
1107 memset(xpermd->allowed->p, 0xff, sizeof(xpermd->allowed->p)); in security_compute_xperms_decision()
1112 * security_compute_av - Compute access vector decisions.
1137 xperms->len = 0; in security_compute_av()
1141 policydb = &policy->policydb; in security_compute_av()
1142 sidtab = policy->sidtab; in security_compute_av()
1152 if (ebitmap_get_bit(&policydb->permissive_map, scontext->type)) in security_compute_av()
1153 avd->flags |= AVD_FLAGS_PERMISSIVE; in security_compute_av()
1162 tclass = unmap_class(&policy->map, orig_tclass); in security_compute_av()
1164 if (policydb->allow_unknown) in security_compute_av()
1170 map_decision(&policy->map, orig_tclass, avd, in security_compute_av()
1171 policydb->allow_unknown); in security_compute_av()
1176 avd->allowed = 0xffffffff; in security_compute_av()
1196 policydb = &policy->policydb; in security_compute_av_user()
1197 sidtab = policy->sidtab; in security_compute_av_user()
1207 if (ebitmap_get_bit(&policydb->permissive_map, scontext->type)) in security_compute_av_user()
1208 avd->flags |= AVD_FLAGS_PERMISSIVE; in security_compute_av_user()
1218 if (policydb->allow_unknown) in security_compute_av_user()
1229 avd->allowed = 0xffffffff; in security_compute_av_user()
1250 if (context->len) { in context_struct_to_string()
1251 *scontext_len = context->len; in context_struct_to_string()
1253 *scontext = kstrdup(context->str, GFP_ATOMIC); in context_struct_to_string()
1255 return -ENOMEM; in context_struct_to_string()
1261 *scontext_len += strlen(sym_name(p, SYM_USERS, context->user - 1)) + 1; in context_struct_to_string()
1262 *scontext_len += strlen(sym_name(p, SYM_ROLES, context->role - 1)) + 1; in context_struct_to_string()
1263 *scontext_len += strlen(sym_name(p, SYM_TYPES, context->type - 1)) + 1; in context_struct_to_string()
1272 return -ENOMEM; in context_struct_to_string()
1276 * Copy the user name, role name and type name into the context. in context_struct_to_string()
1279 sym_name(p, SYM_USERS, context->user - 1), in context_struct_to_string()
1280 sym_name(p, SYM_ROLES, context->role - 1), in context_struct_to_string()
1281 sym_name(p, SYM_TYPES, context->type - 1)); in context_struct_to_string()
1295 int rc = sidtab_sid2str_get(sidtab, entry, scontext, scontext_len); in sidtab_entry_to_string() local
1297 if (rc != -ENOENT) in sidtab_entry_to_string()
1298 return rc; in sidtab_entry_to_string()
1300 rc = context_struct_to_string(p, &entry->context, scontext, in sidtab_entry_to_string()
1302 if (!rc && scontext) in sidtab_entry_to_string()
1304 return rc; in sidtab_entry_to_string()
1312 int rc; in security_sidtab_hash_stats() local
1317 return -EINVAL; in security_sidtab_hash_stats()
1322 rc = sidtab_hash_stats(policy->sidtab, page); in security_sidtab_hash_stats()
1325 return rc; in security_sidtab_hash_stats()
1343 int rc = 0; in security_sid_to_context_core() local
1358 * both non-null and not "kernel" to mean that a policy in security_sid_to_context_core()
1366 return -EINVAL; in security_sid_to_context_core()
1372 return -ENOMEM; in security_sid_to_context_core()
1378 return -EINVAL; in security_sid_to_context_core()
1382 policydb = &policy->policydb; in security_sid_to_context_core()
1383 sidtab = policy->sidtab; in security_sid_to_context_core()
1392 rc = -EINVAL; in security_sid_to_context_core()
1395 if (only_invalid && !entry->context.len) in security_sid_to_context_core()
1398 rc = sidtab_entry_to_string(policydb, sidtab, entry, scontext, in security_sid_to_context_core()
1403 return rc; in security_sid_to_context_core()
1408 * security_sid_to_context - Obtain a context for a given SID.
1431 * security_sid_to_context_inval - Obtain a context for a given SID if it
1463 int rc = 0; in string_to_context_struct() local
1469 rc = -EINVAL; in string_to_context_struct()
1482 usrdatum = symtab_search(&pol->p_users, scontextp); in string_to_context_struct()
1486 ctx->user = usrdatum->value; in string_to_context_struct()
1498 role = symtab_search(&pol->p_roles, scontextp); in string_to_context_struct()
1501 ctx->role = role->value; in string_to_context_struct()
1510 typdatum = symtab_search(&pol->p_types, scontextp); in string_to_context_struct()
1511 if (!typdatum || typdatum->attribute) in string_to_context_struct()
1514 ctx->type = typdatum->value; in string_to_context_struct()
1516 rc = mls_context_to_sid(pol, oldc, p, ctx, sidtabp, def_sid); in string_to_context_struct()
1517 if (rc) in string_to_context_struct()
1521 rc = -EINVAL; in string_to_context_struct()
1524 rc = 0; in string_to_context_struct()
1526 if (rc) in string_to_context_struct()
1528 return rc; in string_to_context_struct()
1540 int rc = 0; in security_context_to_sid_core() local
1544 return -EINVAL; in security_context_to_sid_core()
1549 return -ENOMEM; in security_context_to_sid_core()
1569 rc = -ENOMEM; in security_context_to_sid_core()
1577 policydb = &policy->policydb; in security_context_to_sid_core()
1578 sidtab = policy->sidtab; in security_context_to_sid_core()
1579 rc = string_to_context_struct(policydb, sidtab, scontext2, in security_context_to_sid_core()
1581 if (rc == -EINVAL && force) { in security_context_to_sid_core()
1585 } else if (rc) in security_context_to_sid_core()
1587 rc = sidtab_context_to_sid(sidtab, &context, sid); in security_context_to_sid_core()
1588 if (rc == -ESTALE) { in security_context_to_sid_core()
1603 return rc; in security_context_to_sid_core()
1607 * security_context_to_sid - Obtain a SID for a given security context.
1615 * Returns -%EINVAL if the context is invalid, -%ENOMEM if insufficient
1632 * security_context_to_sid_default - Obtain a SID for a given security context,
1639 * @gfp_flags: the allocator get-free-page (GFP) flags
1647 * Returns -%EINVAL if the context is invalid, -%ENOMEM if insufficient
1671 struct policydb *policydb = &policy->policydb; in compute_sid_handle_invalid_context()
1672 struct sidtab *sidtab = policy->sidtab; in compute_sid_handle_invalid_context()
1689 audit_log_n_untrustedstring(ab, n, nlen - 1); in compute_sid_handle_invalid_context()
1691 s, t, sym_name(policydb, SYM_CLASSES, tclass-1)); in compute_sid_handle_invalid_context()
1699 return -EACCES; in compute_sid_handle_invalid_context()
1715 if (!ebitmap_get_bit(&policydb->filename_trans_ttypes, ttype)) in filename_compute_type()
1720 ft.name = objname; in filename_compute_type()
1724 if (ebitmap_get_bit(&datum->stypes, stype - 1)) { in filename_compute_type()
1725 newcontext->type = datum->otype; in filename_compute_type()
1728 datum = datum->next; in filename_compute_type()
1749 int rc = 0; in security_compute_sid() local
1773 tclass = unmap_class(&policy->map, orig_tclass); in security_compute_sid()
1777 sock = security_is_socket_class(map_class(&policy->map, in security_compute_sid()
1781 policydb = &policy->policydb; in security_compute_sid()
1782 sidtab = policy->sidtab; in security_compute_sid()
1788 rc = -EINVAL; in security_compute_sid()
1795 rc = -EINVAL; in security_compute_sid()
1799 scontext = &sentry->context; in security_compute_sid()
1800 tcontext = &tentry->context; in security_compute_sid()
1802 if (tclass && tclass <= policydb->p_classes.nprim) in security_compute_sid()
1803 cladatum = policydb->class_val_to_struct[tclass - 1]; in security_compute_sid()
1809 if (cladatum && cladatum->default_user == DEFAULT_TARGET) { in security_compute_sid()
1810 newcontext.user = tcontext->user; in security_compute_sid()
1814 newcontext.user = scontext->user; in security_compute_sid()
1819 newcontext.user = tcontext->user; in security_compute_sid()
1824 if (cladatum && cladatum->default_role == DEFAULT_SOURCE) { in security_compute_sid()
1825 newcontext.role = scontext->role; in security_compute_sid()
1826 } else if (cladatum && cladatum->default_role == DEFAULT_TARGET) { in security_compute_sid()
1827 newcontext.role = tcontext->role; in security_compute_sid()
1829 if ((tclass == policydb->process_class) || sock) in security_compute_sid()
1830 newcontext.role = scontext->role; in security_compute_sid()
1838 avkey.source_type = scontext->type; in security_compute_sid()
1839 avkey.target_type = tcontext->type; in security_compute_sid()
1842 avnode = avtab_search_node(&policydb->te_avtab, &avkey); in security_compute_sid()
1846 node = avtab_search_node(&policydb->te_cond_avtab, &avkey); in security_compute_sid()
1848 if (node->key.specified & AVTAB_ENABLED) { in security_compute_sid()
1860 newcontext.type = avnode->datum.u.data; in security_compute_sid()
1861 } else if (cladatum && cladatum->default_type == DEFAULT_SOURCE) { in security_compute_sid()
1862 newcontext.type = scontext->type; in security_compute_sid()
1863 } else if (cladatum && cladatum->default_type == DEFAULT_TARGET) { in security_compute_sid()
1864 newcontext.type = tcontext->type; in security_compute_sid()
1866 if ((tclass == policydb->process_class) || sock) { in security_compute_sid()
1868 newcontext.type = scontext->type; in security_compute_sid()
1871 newcontext.type = tcontext->type; in security_compute_sid()
1877 filename_compute_type(policydb, &newcontext, scontext->type, in security_compute_sid()
1878 tcontext->type, tclass, objname); in security_compute_sid()
1880 /* Check for class-specific changes. */ in security_compute_sid()
1885 .role = scontext->role, in security_compute_sid()
1886 .type = tcontext->type, in security_compute_sid()
1892 newcontext.role = rtd->new_role; in security_compute_sid()
1897 rc = mls_compute_sid(policydb, scontext, tcontext, tclass, specified, in security_compute_sid()
1899 if (rc) in security_compute_sid()
1904 rc = compute_sid_handle_invalid_context(policy, sentry, in security_compute_sid()
1907 if (rc) in security_compute_sid()
1911 rc = sidtab_context_to_sid(sidtab, &newcontext, out_sid); in security_compute_sid()
1912 if (rc == -ESTALE) { in security_compute_sid()
1921 return rc; in security_compute_sid()
1925 * security_transition_sid - Compute the SID for a new subject/object.
1929 * @qstr: object name
1934 * Return -%EINVAL if any of the parameters are invalid, -%ENOMEM
1943 qstr ? qstr->name : NULL, out_sid, true); in security_transition_sid()
1955 * security_member_sid - Compute the SID for member selection.
1963 * Return -%EINVAL if any of the parameters are invalid, -%ENOMEM
1978 * security_change_sid - Compute the SID for object relabeling.
1986 * Return -%EINVAL if any of the parameters are invalid, -%ENOMEM
2007 return -EINVAL; in convert_context_handle_invalid_context()
2018 * services_convert_context - Convert a security context across policies.
2025 * specified in the policy @args->oldp to the values specified in the policy
2026 * @args->newp, storing the new context in @newc, and verifying that the
2039 int rc; in services_convert_context() local
2041 if (oldc->str) { in services_convert_context()
2042 s = kstrdup(oldc->str, gfp_flags); in services_convert_context()
2044 return -ENOMEM; in services_convert_context()
2046 rc = string_to_context_struct(args->newp, NULL, s, newc, SECSID_NULL); in services_convert_context()
2047 if (rc == -EINVAL) { in services_convert_context()
2051 * IMPORTANT: We need to copy the contents of oldc->str in services_convert_context()
2055 memcpy(s, oldc->str, oldc->len); in services_convert_context()
2057 newc->str = s; in services_convert_context()
2058 newc->len = oldc->len; in services_convert_context()
2062 if (rc) { in services_convert_context()
2064 pr_err("SELinux: Unable to map context %s, rc = %d.\n", in services_convert_context()
2065 oldc->str, -rc); in services_convert_context()
2066 return rc; in services_convert_context()
2069 oldc->str); in services_convert_context()
2076 usrdatum = symtab_search(&args->newp->p_users, in services_convert_context()
2077 sym_name(args->oldp, SYM_USERS, oldc->user - 1)); in services_convert_context()
2080 newc->user = usrdatum->value; in services_convert_context()
2083 role = symtab_search(&args->newp->p_roles, in services_convert_context()
2084 sym_name(args->oldp, SYM_ROLES, oldc->role - 1)); in services_convert_context()
2087 newc->role = role->value; in services_convert_context()
2090 typdatum = symtab_search(&args->newp->p_types, in services_convert_context()
2091 sym_name(args->oldp, SYM_TYPES, oldc->type - 1)); in services_convert_context()
2094 newc->type = typdatum->value; in services_convert_context()
2097 if (args->oldp->mls_enabled && args->newp->mls_enabled) { in services_convert_context()
2098 rc = mls_convert_context(args->oldp, args->newp, oldc, newc); in services_convert_context()
2099 if (rc) in services_convert_context()
2101 } else if (!args->oldp->mls_enabled && args->newp->mls_enabled) { in services_convert_context()
2103 * Switching between non-MLS and MLS policy: in services_convert_context()
2109 oc = args->newp->ocontexts[OCON_ISID]; in services_convert_context()
2110 while (oc && oc->sid[0] != SECINITSID_UNLABELED) in services_convert_context()
2111 oc = oc->next; in services_convert_context()
2117 rc = mls_range_set(newc, &oc->context[0].range); in services_convert_context()
2118 if (rc) in services_convert_context()
2123 if (!policydb_context_isvalid(args->newp, newc)) { in services_convert_context()
2124 rc = convert_context_handle_invalid_context(args->oldp, oldc); in services_convert_context()
2125 if (rc) in services_convert_context()
2131 /* Map old representation to string and save it. */ in services_convert_context()
2132 rc = context_struct_to_string(args->oldp, oldc, &s, &len); in services_convert_context()
2133 if (rc) in services_convert_context()
2134 return rc; in services_convert_context()
2136 newc->str = s; in services_convert_context()
2137 newc->len = len; in services_convert_context()
2139 newc->str); in services_convert_context()
2149 p = &policy->policydb; in security_load_policycaps()
2153 ebitmap_get_bit(&p->policycaps, i)); in security_load_policycaps()
2158 ebitmap_get_bit(&p->policycaps, i)); in security_load_policycaps()
2160 ebitmap_for_each_positive_bit(&p->policycaps, node, i) { in security_load_policycaps()
2175 sidtab_destroy(policy->sidtab); in selinux_policy_free()
2176 kfree(policy->map.mapping); in selinux_policy_free()
2177 policydb_destroy(&policy->policydb); in selinux_policy_free()
2178 kfree(policy->sidtab); in selinux_policy_free()
2184 cond_policydb_destroy_dup(&policy->policydb); in selinux_policy_cond_free()
2193 oldpolicy = rcu_dereference_protected(state->policy, in selinux_policy_cancel()
2194 lockdep_is_held(&state->policy_mutex)); in selinux_policy_cancel()
2196 sidtab_cancel_convert(oldpolicy->sidtab); in selinux_policy_cancel()
2197 selinux_policy_free(load_state->policy); in selinux_policy_cancel()
2198 kfree(load_state->convert_data); in selinux_policy_cancel()
2215 struct selinux_policy *oldpolicy, *newpolicy = load_state->policy; in selinux_policy_commit()
2219 oldpolicy = rcu_dereference_protected(state->policy, in selinux_policy_commit()
2220 lockdep_is_held(&state->policy_mutex)); in selinux_policy_commit()
2224 if (oldpolicy->policydb.mls_enabled && !newpolicy->policydb.mls_enabled) in selinux_policy_commit()
2226 else if (!oldpolicy->policydb.mls_enabled && newpolicy->policydb.mls_enabled) in selinux_policy_commit()
2232 newpolicy->latest_granting = oldpolicy->latest_granting + 1; in selinux_policy_commit()
2234 newpolicy->latest_granting = 1; in selinux_policy_commit()
2235 seqno = newpolicy->latest_granting; in selinux_policy_commit()
2239 sidtab_freeze_begin(oldpolicy->sidtab, &flags); in selinux_policy_commit()
2240 rcu_assign_pointer(state->policy, newpolicy); in selinux_policy_commit()
2241 sidtab_freeze_end(oldpolicy->sidtab, &flags); in selinux_policy_commit()
2243 rcu_assign_pointer(state->policy, newpolicy); in selinux_policy_commit()
2262 kfree(load_state->convert_data); in selinux_policy_commit()
2269 * security_load_policy - Load a security policy configuration.
2285 int rc = 0; in security_load_policy() local
2290 return -ENOMEM; in security_load_policy()
2292 newpolicy->sidtab = kzalloc(sizeof(*newpolicy->sidtab), GFP_KERNEL); in security_load_policy()
2293 if (!newpolicy->sidtab) { in security_load_policy()
2294 rc = -ENOMEM; in security_load_policy()
2298 rc = policydb_read(&newpolicy->policydb, fp); in security_load_policy()
2299 if (rc) in security_load_policy()
2302 newpolicy->policydb.len = len; in security_load_policy()
2303 rc = selinux_set_mapping(&newpolicy->policydb, secclass_map, in security_load_policy()
2304 &newpolicy->map); in security_load_policy()
2305 if (rc) in security_load_policy()
2308 rc = policydb_load_isids(&newpolicy->policydb, newpolicy->sidtab); in security_load_policy()
2309 if (rc) { in security_load_policy()
2316 load_state->policy = newpolicy; in security_load_policy()
2317 load_state->convert_data = NULL; in security_load_policy()
2321 oldpolicy = rcu_dereference_protected(state->policy, in security_load_policy()
2322 lockdep_is_held(&state->policy_mutex)); in security_load_policy()
2325 rc = security_preserve_bools(oldpolicy, newpolicy); in security_load_policy()
2326 if (rc) { in security_load_policy()
2338 rc = -ENOMEM; in security_load_policy()
2342 convert_data->args.oldp = &oldpolicy->policydb; in security_load_policy()
2343 convert_data->args.newp = &newpolicy->policydb; in security_load_policy()
2345 convert_data->sidtab_params.args = &convert_data->args; in security_load_policy()
2346 convert_data->sidtab_params.target = newpolicy->sidtab; in security_load_policy()
2348 rc = sidtab_convert(oldpolicy->sidtab, &convert_data->sidtab_params); in security_load_policy()
2349 if (rc) { in security_load_policy()
2356 load_state->policy = newpolicy; in security_load_policy()
2357 load_state->convert_data = convert_data; in security_load_policy()
2363 sidtab_destroy(newpolicy->sidtab); in security_load_policy()
2365 kfree(newpolicy->map.mapping); in security_load_policy()
2367 policydb_destroy(&newpolicy->policydb); in security_load_policy()
2369 kfree(newpolicy->sidtab); in security_load_policy()
2373 return rc; in security_load_policy()
2377 * ocontext_to_sid - Helper to safely get sid for an ocontext
2384 * on-demand when needed. Since updating the SID value is an SMP-sensitive
2387 * WARNING: This function may return -ESTALE, indicating that the caller
2388 * must retry the operation after re-acquiring the policy pointer!
2393 int rc; in ocontext_to_sid() local
2397 sid = smp_load_acquire(&c->sid[index]); in ocontext_to_sid()
2399 rc = sidtab_context_to_sid(sidtab, &c->context[index], &sid); in ocontext_to_sid()
2400 if (rc) in ocontext_to_sid()
2401 return rc; in ocontext_to_sid()
2407 smp_store_release(&c->sid[index], sid); in ocontext_to_sid()
2414 * security_port_sid - Obtain the SID for a port.
2425 int rc; in security_port_sid() local
2433 rc = 0; in security_port_sid()
2436 policydb = &policy->policydb; in security_port_sid()
2437 sidtab = policy->sidtab; in security_port_sid()
2439 c = policydb->ocontexts[OCON_PORT]; in security_port_sid()
2441 if (c->u.port.protocol == protocol && in security_port_sid()
2442 c->u.port.low_port <= port && in security_port_sid()
2443 c->u.port.high_port >= port) in security_port_sid()
2445 c = c->next; in security_port_sid()
2449 rc = ocontext_to_sid(sidtab, c, 0, out_sid); in security_port_sid()
2450 if (rc == -ESTALE) { in security_port_sid()
2454 if (rc) in security_port_sid()
2462 return rc; in security_port_sid()
2466 * security_ib_pkey_sid - Obtain the SID for a pkey.
2477 int rc; in security_ib_pkey_sid() local
2485 rc = 0; in security_ib_pkey_sid()
2488 policydb = &policy->policydb; in security_ib_pkey_sid()
2489 sidtab = policy->sidtab; in security_ib_pkey_sid()
2491 c = policydb->ocontexts[OCON_IBPKEY]; in security_ib_pkey_sid()
2493 if (c->u.ibpkey.low_pkey <= pkey_num && in security_ib_pkey_sid()
2494 c->u.ibpkey.high_pkey >= pkey_num && in security_ib_pkey_sid()
2495 c->u.ibpkey.subnet_prefix == subnet_prefix) in security_ib_pkey_sid()
2498 c = c->next; in security_ib_pkey_sid()
2502 rc = ocontext_to_sid(sidtab, c, 0, out_sid); in security_ib_pkey_sid()
2503 if (rc == -ESTALE) { in security_ib_pkey_sid()
2507 if (rc) in security_ib_pkey_sid()
2514 return rc; in security_ib_pkey_sid()
2518 * security_ib_endport_sid - Obtain the SID for a subnet management interface.
2519 * @dev_name: device name
2529 int rc; in security_ib_endport_sid() local
2537 rc = 0; in security_ib_endport_sid()
2540 policydb = &policy->policydb; in security_ib_endport_sid()
2541 sidtab = policy->sidtab; in security_ib_endport_sid()
2543 c = policydb->ocontexts[OCON_IBENDPORT]; in security_ib_endport_sid()
2545 if (c->u.ibendport.port == port_num && in security_ib_endport_sid()
2546 !strncmp(c->u.ibendport.dev_name, in security_ib_endport_sid()
2551 c = c->next; in security_ib_endport_sid()
2555 rc = ocontext_to_sid(sidtab, c, 0, out_sid); in security_ib_endport_sid()
2556 if (rc == -ESTALE) { in security_ib_endport_sid()
2560 if (rc) in security_ib_endport_sid()
2567 return rc; in security_ib_endport_sid()
2571 * security_netif_sid - Obtain the SID for a network interface.
2572 * @name: interface name
2575 int security_netif_sid(char *name, u32 *if_sid) in security_netif_sid() argument
2580 int rc; in security_netif_sid() local
2589 rc = 0; in security_netif_sid()
2592 policydb = &policy->policydb; in security_netif_sid()
2593 sidtab = policy->sidtab; in security_netif_sid()
2595 c = policydb->ocontexts[OCON_NETIF]; in security_netif_sid()
2597 if (strcmp(name, c->u.name) == 0) in security_netif_sid()
2599 c = c->next; in security_netif_sid()
2603 rc = ocontext_to_sid(sidtab, c, 0, if_sid); in security_netif_sid()
2604 if (rc == -ESTALE) { in security_netif_sid()
2608 if (rc) in security_netif_sid()
2615 return rc; in security_netif_sid()
2630 * security_node_sid - Obtain the SID for a node (host).
2644 int rc; in security_node_sid() local
2655 policydb = &policy->policydb; in security_node_sid()
2656 sidtab = policy->sidtab; in security_node_sid()
2662 rc = -EINVAL; in security_node_sid()
2668 c = policydb->ocontexts[OCON_NODE]; in security_node_sid()
2670 if (c->u.node.addr == (addr & c->u.node.mask)) in security_node_sid()
2672 c = c->next; in security_node_sid()
2678 rc = -EINVAL; in security_node_sid()
2681 c = policydb->ocontexts[OCON_NODE6]; in security_node_sid()
2683 if (match_ipv6_addrmask(addrp, c->u.node6.addr, in security_node_sid()
2684 c->u.node6.mask)) in security_node_sid()
2686 c = c->next; in security_node_sid()
2691 rc = 0; in security_node_sid()
2697 rc = ocontext_to_sid(sidtab, c, 0, out_sid); in security_node_sid()
2698 if (rc == -ESTALE) { in security_node_sid()
2702 if (rc) in security_node_sid()
2708 rc = 0; in security_node_sid()
2711 return rc; in security_node_sid()
2717 * security_get_user_sids - Obtain reachable SIDs for a user.
2744 int rc; in security_get_user_sids() local
2754 return -ENOMEM; in security_get_user_sids()
2760 policydb = &policy->policydb; in security_get_user_sids()
2761 sidtab = policy->sidtab; in security_get_user_sids()
2765 rc = -EINVAL; in security_get_user_sids()
2770 rc = -EINVAL; in security_get_user_sids()
2771 user = symtab_search(&policydb->p_users, username); in security_get_user_sids()
2775 usercon.user = user->value; in security_get_user_sids()
2777 ebitmap_for_each_positive_bit(&user->roles, rnode, i) { in security_get_user_sids()
2778 role = policydb->role_val_to_struct[i]; in security_get_user_sids()
2780 ebitmap_for_each_positive_bit(&role->types, tnode, j) { in security_get_user_sids()
2787 rc = sidtab_context_to_sid(sidtab, &usercon, &sid); in security_get_user_sids()
2788 if (rc == -ESTALE) { in security_get_user_sids()
2792 if (rc) in security_get_user_sids()
2797 rc = -ENOMEM; in security_get_user_sids()
2809 rc = 0; in security_get_user_sids()
2812 if (rc || !mynel) { in security_get_user_sids()
2814 return rc; in security_get_user_sids()
2817 rc = -ENOMEM; in security_get_user_sids()
2821 return rc; in security_get_user_sids()
2825 rc = avc_has_perm_noaudit(fromsid, mysids[i], in security_get_user_sids()
2829 if (!rc) in security_get_user_sids()
2840 * __security_genfs_sid - Helper to obtain a SID for a file in a filesystem
2851 * WARNING: This function may return -ESTALE, indicating that the caller
2852 * must retry the operation after re-acquiring the policy pointer!
2860 struct policydb *policydb = &policy->policydb; in __security_genfs_sid()
2861 struct sidtab *sidtab = policy->sidtab; in __security_genfs_sid()
2870 sclass = unmap_class(&policy->map, orig_sclass); in __security_genfs_sid()
2873 for (genfs = policydb->genfs; genfs; genfs = genfs->next) { in __security_genfs_sid()
2874 cmp = strcmp(fstype, genfs->fstype); in __security_genfs_sid()
2880 return -ENOENT; in __security_genfs_sid()
2882 for (c = genfs->head; c; c = c->next) { in __security_genfs_sid()
2883 size_t len = strlen(c->u.name); in __security_genfs_sid()
2884 if ((!c->v.sclass || sclass == c->v.sclass) && in __security_genfs_sid()
2885 (strncmp(c->u.name, path, len) == 0)) in __security_genfs_sid()
2890 return -ENOENT; in __security_genfs_sid()
2896 * security_genfs_sid - Obtain a SID for a file in a filesystem
2924 } while (retval == -ESTALE); in security_genfs_sid()
2939 * security_fs_use - Determine how to handle labeling for a filesystem.
2947 int rc; in security_fs_use() local
2950 const char *fstype = sb->s_type->name; in security_fs_use()
2953 sbsec->behavior = SECURITY_FS_USE_NONE; in security_fs_use()
2954 sbsec->sid = SECINITSID_UNLABELED; in security_fs_use()
2961 policydb = &policy->policydb; in security_fs_use()
2962 sidtab = policy->sidtab; in security_fs_use()
2964 c = policydb->ocontexts[OCON_FSUSE]; in security_fs_use()
2966 if (strcmp(fstype, c->u.name) == 0) in security_fs_use()
2968 c = c->next; in security_fs_use()
2972 sbsec->behavior = c->v.behavior; in security_fs_use()
2973 rc = ocontext_to_sid(sidtab, c, 0, &sbsec->sid); in security_fs_use()
2974 if (rc == -ESTALE) { in security_fs_use()
2978 if (rc) in security_fs_use()
2981 rc = __security_genfs_sid(policy, fstype, "/", in security_fs_use()
2982 SECCLASS_DIR, &sbsec->sid); in security_fs_use()
2983 if (rc == -ESTALE) { in security_fs_use()
2987 if (rc) { in security_fs_use()
2988 sbsec->behavior = SECURITY_FS_USE_NONE; in security_fs_use()
2989 rc = 0; in security_fs_use()
2991 sbsec->behavior = SECURITY_FS_USE_GENFS; in security_fs_use()
2997 return rc; in security_fs_use()
3005 int rc; in security_get_bools() local
3007 policydb = &policy->policydb; in security_get_bools()
3012 rc = 0; in security_get_bools()
3013 *len = policydb->p_bools.nprim; in security_get_bools()
3017 rc = -ENOMEM; in security_get_bools()
3022 rc = -ENOMEM; in security_get_bools()
3028 (*values)[i] = policydb->bool_val_to_struct[i]->state; in security_get_bools()
3030 rc = -ENOMEM; in security_get_bools()
3036 rc = 0; in security_get_bools()
3038 return rc; in security_get_bools()
3057 int rc; in security_set_bools() local
3061 return -EINVAL; in security_set_bools()
3063 oldpolicy = rcu_dereference_protected(state->policy, in security_set_bools()
3064 lockdep_is_held(&state->policy_mutex)); in security_set_bools()
3067 if (WARN_ON(len != oldpolicy->policydb.p_bools.nprim)) in security_set_bools()
3068 return -EINVAL; in security_set_bools()
3072 return -ENOMEM; in security_set_bools()
3078 rc = cond_policydb_dup(&newpolicy->policydb, &oldpolicy->policydb); in security_set_bools()
3079 if (rc) { in security_set_bools()
3081 return -ENOMEM; in security_set_bools()
3087 int old_state = newpolicy->policydb.bool_val_to_struct[i]->state; in security_set_bools()
3093 sym_name(&newpolicy->policydb, SYM_BOOLS, i), in security_set_bools()
3098 newpolicy->policydb.bool_val_to_struct[i]->state = new_state; in security_set_bools()
3102 /* Re-evaluate the conditional rules in the copy */ in security_set_bools()
3103 evaluate_cond_nodes(&newpolicy->policydb); in security_set_bools()
3106 newpolicy->latest_granting = oldpolicy->latest_granting + 1; in security_set_bools()
3107 seqno = newpolicy->latest_granting; in security_set_bools()
3110 rcu_assign_pointer(state->policy, newpolicy); in security_set_bools()
3129 int rc; in security_get_bool_value() local
3137 policydb = &policy->policydb; in security_get_bool_value()
3139 rc = -EFAULT; in security_get_bool_value()
3140 len = policydb->p_bools.nprim; in security_get_bool_value()
3144 rc = policydb->bool_val_to_struct[index]->state; in security_get_bool_value()
3147 return rc; in security_get_bool_value()
3153 int rc, *bvalues = NULL; in security_preserve_bools() local
3158 rc = security_get_bools(oldpolicy, &nbools, &bnames, &bvalues); in security_preserve_bools()
3159 if (rc) in security_preserve_bools()
3162 booldatum = symtab_search(&newpolicy->policydb.p_bools, in security_preserve_bools()
3165 booldatum->state = bvalues[i]; in security_preserve_bools()
3167 evaluate_cond_nodes(&newpolicy->policydb); in security_preserve_bools()
3176 return rc; in security_preserve_bools()
3180 * security_sid_mls_copy() - computes a new sid based on the given
3193 int rc; in security_sid_mls_copy() local
3201 rc = 0; in security_sid_mls_copy()
3206 policydb = &policy->policydb; in security_sid_mls_copy()
3207 sidtab = policy->sidtab; in security_sid_mls_copy()
3209 if (!policydb->mls_enabled) { in security_sid_mls_copy()
3214 rc = -EINVAL; in security_sid_mls_copy()
3222 rc = -EINVAL; in security_sid_mls_copy()
3230 newcon.user = context1->user; in security_sid_mls_copy()
3231 newcon.role = context1->role; in security_sid_mls_copy()
3232 newcon.type = context1->type; in security_sid_mls_copy()
3233 rc = mls_context_cpy(&newcon, context2); in security_sid_mls_copy()
3234 if (rc) in security_sid_mls_copy()
3239 rc = convert_context_handle_invalid_context(policydb, in security_sid_mls_copy()
3241 if (rc) { in security_sid_mls_copy()
3252 audit_log_n_untrustedstring(ab, s, len - 1); in security_sid_mls_copy()
3259 rc = sidtab_context_to_sid(sidtab, &newcon, new_sid); in security_sid_mls_copy()
3260 if (rc == -ESTALE) { in security_sid_mls_copy()
3268 return rc; in security_sid_mls_copy()
3272 * security_net_peersid_resolve - Compare and resolve two network peer SIDs
3285 * ------------------------------+-----------------+-----------------
3289 * multiple, inconsistent labels | -<errno> | SECSID_NULL
3299 int rc; in security_net_peersid_resolve() local
3325 policydb = &policy->policydb; in security_net_peersid_resolve()
3326 sidtab = policy->sidtab; in security_net_peersid_resolve()
3331 * security server was initialized and state->initialized was true. in security_net_peersid_resolve()
3333 if (!policydb->mls_enabled) { in security_net_peersid_resolve()
3334 rc = 0; in security_net_peersid_resolve()
3338 rc = -EINVAL; in security_net_peersid_resolve()
3345 rc = -EINVAL; in security_net_peersid_resolve()
3352 rc = (mls_context_equal(nlbl_ctx, xfrm_ctx) ? 0 : -EACCES); in security_net_peersid_resolve()
3353 if (rc) in security_net_peersid_resolve()
3364 return rc; in security_net_peersid_resolve()
3370 char *name = k, **classes = args; in get_classes_callback() local
3371 u32 value = datum->value - 1; in get_classes_callback()
3373 classes[value] = kstrdup(name, GFP_ATOMIC); in get_classes_callback()
3375 return -ENOMEM; in get_classes_callback()
3384 int rc; in security_get_classes() local
3386 policydb = &policy->policydb; in security_get_classes()
3388 rc = -ENOMEM; in security_get_classes()
3389 *nclasses = policydb->p_classes.nprim; in security_get_classes()
3394 rc = hashtab_map(&policydb->p_classes.table, get_classes_callback, in security_get_classes()
3396 if (rc) { in security_get_classes()
3405 return rc; in security_get_classes()
3411 char *name = k, **perms = args; in get_permissions_callback() local
3412 u32 value = datum->value - 1; in get_permissions_callback()
3414 perms[value] = kstrdup(name, GFP_ATOMIC); in get_permissions_callback()
3416 return -ENOMEM; in get_permissions_callback()
3426 int rc; in security_get_permissions() local
3429 policydb = &policy->policydb; in security_get_permissions()
3431 rc = -EINVAL; in security_get_permissions()
3432 match = symtab_search(&policydb->p_classes, class); in security_get_permissions()
3439 rc = -ENOMEM; in security_get_permissions()
3440 *nperms = match->permissions.nprim; in security_get_permissions()
3445 if (match->comdatum) { in security_get_permissions()
3446 rc = hashtab_map(&match->comdatum->permissions.table, in security_get_permissions()
3448 if (rc) in security_get_permissions()
3452 rc = hashtab_map(&match->permissions.table, get_permissions_callback, in security_get_permissions()
3454 if (rc) in security_get_permissions()
3458 return rc; in security_get_permissions()
3464 return rc; in security_get_permissions()
3477 value = policy->policydb.reject_unknown; in security_get_reject_unknown()
3492 value = policy->policydb.allow_unknown; in security_get_allow_unknown()
3498 * security_policycap_supported - Check for a specific policy capability
3510 int rc; in security_policycap_supported() local
3517 rc = ebitmap_get_bit(&policy->policydb.policycaps, req_cap); in security_policycap_supported()
3520 return rc; in security_policycap_supported()
3533 context_destroy(&rule->au_ctxt); in selinux_audit_rule_free()
3549 int rc = 0; in selinux_audit_rule_init() local
3554 return -EOPNOTSUPP; in selinux_audit_rule_init()
3565 return -EINVAL; in selinux_audit_rule_init()
3571 /* we do not allow a range, indicated by the presence of '-' */ in selinux_audit_rule_init()
3572 if (strchr(rulestr, '-')) in selinux_audit_rule_init()
3573 return -EINVAL; in selinux_audit_rule_init()
3577 return -EINVAL; in selinux_audit_rule_init()
3582 return -ENOMEM; in selinux_audit_rule_init()
3583 context_init(&tmprule->au_ctxt); in selinux_audit_rule_init()
3586 policy = rcu_dereference(state->policy); in selinux_audit_rule_init()
3587 policydb = &policy->policydb; in selinux_audit_rule_init()
3588 tmprule->au_seqno = policy->latest_granting; in selinux_audit_rule_init()
3592 userdatum = symtab_search(&policydb->p_users, rulestr); in selinux_audit_rule_init()
3594 rc = -EINVAL; in selinux_audit_rule_init()
3597 tmprule->au_ctxt.user = userdatum->value; in selinux_audit_rule_init()
3601 roledatum = symtab_search(&policydb->p_roles, rulestr); in selinux_audit_rule_init()
3603 rc = -EINVAL; in selinux_audit_rule_init()
3606 tmprule->au_ctxt.role = roledatum->value; in selinux_audit_rule_init()
3610 typedatum = symtab_search(&policydb->p_types, rulestr); in selinux_audit_rule_init()
3612 rc = -EINVAL; in selinux_audit_rule_init()
3615 tmprule->au_ctxt.type = typedatum->value; in selinux_audit_rule_init()
3621 rc = mls_from_string(policydb, rulestr, &tmprule->au_ctxt, in selinux_audit_rule_init()
3623 if (rc) in selinux_audit_rule_init()
3636 return rc; in selinux_audit_rule_init()
3644 for (i = 0; i < rule->field_count; i++) { in selinux_audit_rule_known()
3645 struct audit_field *f = &rule->fields[i]; in selinux_audit_rule_known()
3646 switch (f->type) { in selinux_audit_rule_known()
3675 return -ENOENT; in selinux_audit_rule_match()
3683 policy = rcu_dereference(state->policy); in selinux_audit_rule_match()
3685 if (rule->au_seqno < policy->latest_granting) { in selinux_audit_rule_match()
3686 match = -ESTALE; in selinux_audit_rule_match()
3690 ctxt = sidtab_search(policy->sidtab, prop->selinux.secid); in selinux_audit_rule_match()
3693 prop->selinux.secid); in selinux_audit_rule_match()
3694 match = -ENOENT; in selinux_audit_rule_match()
3705 match = (ctxt->user == rule->au_ctxt.user); in selinux_audit_rule_match()
3708 match = (ctxt->user != rule->au_ctxt.user); in selinux_audit_rule_match()
3716 match = (ctxt->role == rule->au_ctxt.role); in selinux_audit_rule_match()
3719 match = (ctxt->role != rule->au_ctxt.role); in selinux_audit_rule_match()
3727 match = (ctxt->type == rule->au_ctxt.type); in selinux_audit_rule_match()
3730 match = (ctxt->type != rule->au_ctxt.type); in selinux_audit_rule_match()
3740 &ctxt->range.level[0] : &ctxt->range.level[1]); in selinux_audit_rule_match()
3743 match = mls_level_eq(&rule->au_ctxt.range.level[0], in selinux_audit_rule_match()
3747 match = !mls_level_eq(&rule->au_ctxt.range.level[0], in selinux_audit_rule_match()
3751 match = (mls_level_dom(&rule->au_ctxt.range.level[0], in selinux_audit_rule_match()
3753 !mls_level_eq(&rule->au_ctxt.range.level[0], in selinux_audit_rule_match()
3757 match = mls_level_dom(&rule->au_ctxt.range.level[0], in selinux_audit_rule_match()
3762 &rule->au_ctxt.range.level[0]) && in selinux_audit_rule_match()
3764 &rule->au_ctxt.range.level[0])); in selinux_audit_rule_match()
3768 &rule->au_ctxt.range.level[0]); in selinux_audit_rule_match()
3799 * security_netlbl_cache_add - Add an entry to the NetLabel cache
3817 secattr->cache = netlbl_secattr_cache_alloc(GFP_ATOMIC); in security_netlbl_cache_add()
3818 if (secattr->cache == NULL) { in security_netlbl_cache_add()
3824 secattr->cache->free = kfree; in security_netlbl_cache_add()
3825 secattr->cache->data = sid_cache; in security_netlbl_cache_add()
3826 secattr->flags |= NETLBL_SECATTR_CACHE; in security_netlbl_cache_add()
3830 * security_netlbl_secattr_to_sid - Convert a NetLabel secattr to a SELinux SID
3850 int rc; in security_netlbl_secattr_to_sid() local
3860 rc = 0; in security_netlbl_secattr_to_sid()
3863 policydb = &policy->policydb; in security_netlbl_secattr_to_sid()
3864 sidtab = policy->sidtab; in security_netlbl_secattr_to_sid()
3866 if (secattr->flags & NETLBL_SECATTR_CACHE) in security_netlbl_secattr_to_sid()
3867 *sid = *(u32 *)secattr->cache->data; in security_netlbl_secattr_to_sid()
3868 else if (secattr->flags & NETLBL_SECATTR_SECID) in security_netlbl_secattr_to_sid()
3869 *sid = secattr->attr.secid; in security_netlbl_secattr_to_sid()
3870 else if (secattr->flags & NETLBL_SECATTR_MLS_LVL) { in security_netlbl_secattr_to_sid()
3871 rc = -EIDRM; in security_netlbl_secattr_to_sid()
3877 ctx_new.user = ctx->user; in security_netlbl_secattr_to_sid()
3878 ctx_new.role = ctx->role; in security_netlbl_secattr_to_sid()
3879 ctx_new.type = ctx->type; in security_netlbl_secattr_to_sid()
3881 if (secattr->flags & NETLBL_SECATTR_MLS_CAT) { in security_netlbl_secattr_to_sid()
3882 rc = mls_import_netlbl_cat(policydb, &ctx_new, secattr); in security_netlbl_secattr_to_sid()
3883 if (rc) in security_netlbl_secattr_to_sid()
3886 rc = -EIDRM; in security_netlbl_secattr_to_sid()
3892 rc = sidtab_context_to_sid(sidtab, &ctx_new, sid); in security_netlbl_secattr_to_sid()
3894 if (rc == -ESTALE) { in security_netlbl_secattr_to_sid()
3898 if (rc) in security_netlbl_secattr_to_sid()
3907 return rc; in security_netlbl_secattr_to_sid()
3911 * security_netlbl_sid_to_secattr - Convert a SELinux SID to a NetLabel secattr
3924 int rc; in security_netlbl_sid_to_secattr() local
3932 policydb = &policy->policydb; in security_netlbl_sid_to_secattr()
3934 rc = -ENOENT; in security_netlbl_sid_to_secattr()
3935 ctx = sidtab_search(policy->sidtab, sid); in security_netlbl_sid_to_secattr()
3939 rc = -ENOMEM; in security_netlbl_sid_to_secattr()
3940 secattr->domain = kstrdup(sym_name(policydb, SYM_TYPES, ctx->type - 1), in security_netlbl_sid_to_secattr()
3942 if (secattr->domain == NULL) in security_netlbl_sid_to_secattr()
3945 secattr->attr.secid = sid; in security_netlbl_sid_to_secattr()
3946 secattr->flags |= NETLBL_SECATTR_DOMAIN_CPY | NETLBL_SECATTR_SECID; in security_netlbl_sid_to_secattr()
3948 rc = mls_export_netlbl_cat(policydb, ctx, secattr); in security_netlbl_sid_to_secattr()
3951 return rc; in security_netlbl_sid_to_secattr()
3956 * __security_read_policy - read the policy.
3965 int rc; in __security_read_policy() local
3971 rc = policydb_write(&policy->policydb, &fp); in __security_read_policy()
3972 if (rc) in __security_read_policy()
3973 return rc; in __security_read_policy()
3975 *len = (unsigned long)fp.data - (unsigned long)data; in __security_read_policy()
3980 * security_read_policy - read the policy.
3991 state->policy, lockdep_is_held(&state->policy_mutex)); in security_read_policy()
3993 return -EINVAL; in security_read_policy()
3995 *len = policy->policydb.len; in security_read_policy()
3998 return -ENOMEM; in security_read_policy()
4004 * security_read_state_kernel - read the policy.
4021 state->policy, lockdep_is_held(&state->policy_mutex)); in security_read_state_kernel()
4023 return -EINVAL; in security_read_state_kernel()
4025 *len = policy->policydb.len; in security_read_state_kernel()
4028 return -ENOMEM; in security_read_state_kernel()