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
102 struct security_class_mapping *map, in selinux_set_mapping() argument
110 if (!map) in selinux_set_mapping()
111 return -EINVAL; in selinux_set_mapping()
113 while (map[i].name) in selinux_set_mapping()
117 out_map->mapping = kcalloc(++i, sizeof(*out_map->mapping), GFP_ATOMIC); in selinux_set_mapping()
118 if (!out_map->mapping) in selinux_set_mapping()
119 return -ENOMEM; in selinux_set_mapping()
123 while (map[j].name) { in selinux_set_mapping()
124 struct security_class_mapping *p_in = map + (j++); in selinux_set_mapping()
125 struct selinux_mapping *p_out = out_map->mapping + j; in selinux_set_mapping()
128 if (!strcmp(p_in->name, "")) { in selinux_set_mapping()
129 p_out->num_perms = 0; in selinux_set_mapping()
133 p_out->value = string_to_security_class(pol, p_in->name); in selinux_set_mapping()
134 if (!p_out->value) { in selinux_set_mapping()
136 p_in->name); in selinux_set_mapping()
137 if (pol->reject_unknown) in selinux_set_mapping()
139 p_out->num_perms = 0; in selinux_set_mapping()
145 while (p_in->perms[k]) { in selinux_set_mapping()
147 if (!*p_in->perms[k]) { in selinux_set_mapping()
151 p_out->perms[k] = string_to_av_perm(pol, p_out->value, in selinux_set_mapping()
152 p_in->perms[k]); in selinux_set_mapping()
153 if (!p_out->perms[k]) { in selinux_set_mapping()
155 p_in->perms[k], p_in->name); in selinux_set_mapping()
156 if (pol->reject_unknown) in selinux_set_mapping()
163 p_out->num_perms = k; in selinux_set_mapping()
168 pol->allow_unknown ? "allowed" : "denied"); in selinux_set_mapping()
170 out_map->size = i; in selinux_set_mapping()
173 kfree(out_map->mapping); in selinux_set_mapping()
174 out_map->mapping = NULL; in selinux_set_mapping()
175 return -EINVAL; in selinux_set_mapping()
182 static u16 unmap_class(struct selinux_map *map, u16 tclass) in unmap_class() argument
184 if (tclass < map->size) in unmap_class()
185 return map->mapping[tclass].value; in unmap_class()
193 static u16 map_class(struct selinux_map *map, u16 pol_value) in map_class() argument
197 for (i = 1; i < map->size; i++) { in map_class()
198 if (map->mapping[i].value == pol_value) in map_class()
205 static void map_decision(struct selinux_map *map, in map_decision() argument
209 if (tclass < map->size) { in map_decision()
210 struct selinux_mapping *mapping = &map->mapping[tclass]; in map_decision()
211 unsigned int i, n = mapping->num_perms; in map_decision()
215 if (avd->allowed & mapping->perms[i]) in map_decision()
217 if (allow_unknown && !mapping->perms[i]) in map_decision()
220 avd->allowed = result; in map_decision()
223 if (avd->auditallow & mapping->perms[i]) in map_decision()
225 avd->auditallow = result; in map_decision()
228 if (avd->auditdeny & mapping->perms[i]) in map_decision()
230 if (!allow_unknown && !mapping->perms[i]) in map_decision()
240 avd->auditdeny = result; in map_decision()
253 policy = rcu_dereference(state->policy); in security_mls_enabled()
254 mls_enabled = policy->policydb.mls_enabled; in security_mls_enabled()
282 int sp = -1; in constraint_expr_eval()
284 for (e = cexpr; e; e = e->next) { in constraint_expr_eval()
285 switch (e->expr_type) { in constraint_expr_eval()
292 sp--; in constraint_expr_eval()
297 sp--; in constraint_expr_eval()
301 if (sp == (CEXPR_MAXDEPTH - 1)) in constraint_expr_eval()
303 switch (e->attr) { in constraint_expr_eval()
305 val1 = scontext->user; in constraint_expr_eval()
306 val2 = tcontext->user; in constraint_expr_eval()
309 val1 = scontext->type; in constraint_expr_eval()
310 val2 = tcontext->type; in constraint_expr_eval()
313 val1 = scontext->role; in constraint_expr_eval()
314 val2 = tcontext->role; in constraint_expr_eval()
315 r1 = policydb->role_val_to_struct[val1 - 1]; in constraint_expr_eval()
316 r2 = policydb->role_val_to_struct[val2 - 1]; in constraint_expr_eval()
317 switch (e->op) { in constraint_expr_eval()
319 s[++sp] = ebitmap_get_bit(&r1->dominates, in constraint_expr_eval()
320 val2 - 1); in constraint_expr_eval()
323 s[++sp] = ebitmap_get_bit(&r2->dominates, in constraint_expr_eval()
324 val1 - 1); in constraint_expr_eval()
327 s[++sp] = (!ebitmap_get_bit(&r1->dominates, in constraint_expr_eval()
328 val2 - 1) && in constraint_expr_eval()
329 !ebitmap_get_bit(&r2->dominates, in constraint_expr_eval()
330 val1 - 1)); in constraint_expr_eval()
337 l1 = &(scontext->range.level[0]); in constraint_expr_eval()
338 l2 = &(tcontext->range.level[0]); in constraint_expr_eval()
341 l1 = &(scontext->range.level[0]); in constraint_expr_eval()
342 l2 = &(tcontext->range.level[1]); in constraint_expr_eval()
345 l1 = &(scontext->range.level[1]); in constraint_expr_eval()
346 l2 = &(tcontext->range.level[0]); in constraint_expr_eval()
349 l1 = &(scontext->range.level[1]); in constraint_expr_eval()
350 l2 = &(tcontext->range.level[1]); in constraint_expr_eval()
353 l1 = &(scontext->range.level[0]); in constraint_expr_eval()
354 l2 = &(scontext->range.level[1]); in constraint_expr_eval()
357 l1 = &(tcontext->range.level[0]); in constraint_expr_eval()
358 l2 = &(tcontext->range.level[1]); in constraint_expr_eval()
361 switch (e->op) { in constraint_expr_eval()
387 switch (e->op) { in constraint_expr_eval()
400 if (sp == (CEXPR_MAXDEPTH-1)) in constraint_expr_eval()
403 if (e->attr & CEXPR_TARGET) in constraint_expr_eval()
405 else if (e->attr & CEXPR_XTARGET) { in constraint_expr_eval()
412 if (e->attr & CEXPR_USER) in constraint_expr_eval()
413 val1 = c->user; in constraint_expr_eval()
414 else if (e->attr & CEXPR_ROLE) in constraint_expr_eval()
415 val1 = c->role; in constraint_expr_eval()
416 else if (e->attr & CEXPR_TYPE) in constraint_expr_eval()
417 val1 = c->type; in constraint_expr_eval()
423 switch (e->op) { in constraint_expr_eval()
425 s[++sp] = ebitmap_get_bit(&e->names, val1 - 1); in constraint_expr_eval()
428 s[++sp] = !ebitmap_get_bit(&e->names, val1 - 1); in constraint_expr_eval()
446 * security_dump_masked_av - dumps masked permissions during
454 BUG_ON(pdatum->value < 1 || pdatum->value > 32); in dump_masked_av_helper()
456 permission_names[pdatum->value - 1] = (char *)k; in dump_masked_av_helper()
482 tclass_name = sym_name(policydb, SYM_CLASSES, tclass - 1); in security_dump_masked_av()
483 tclass_dat = policydb->class_val_to_struct[tclass - 1]; in security_dump_masked_av()
484 common_dat = tclass_dat->comdatum; in security_dump_masked_av()
488 hashtab_map(&common_dat->permissions.table, in security_dump_masked_av()
492 if (hashtab_map(&tclass_dat->permissions.table, in security_dump_masked_av()
537 * security_boundary_permission - drops violated permissions
553 source = policydb->type_val_to_struct[scontext->type - 1]; in type_attribute_bounds_av()
556 if (!source->bounds) in type_attribute_bounds_av()
559 target = policydb->type_val_to_struct[tcontext->type - 1]; in type_attribute_bounds_av()
565 lo_scontext.type = source->bounds; in type_attribute_bounds_av()
567 if (target->bounds) { in type_attribute_bounds_av()
569 lo_tcontext.type = target->bounds; in type_attribute_bounds_av()
579 masked = ~lo_avd.allowed & avd->allowed; in type_attribute_bounds_av()
585 avd->allowed &= ~masked; in type_attribute_bounds_av()
602 if (node->datum.u.xperms->specified == AVTAB_XPERMS_IOCTLDRIVER) { in services_compute_xperms_drivers()
604 for (i = 0; i < ARRAY_SIZE(xperms->drivers.p); i++) in services_compute_xperms_drivers()
605 xperms->drivers.p[i] |= node->datum.u.xperms->perms.p[i]; in services_compute_xperms_drivers()
606 } else if (node->datum.u.xperms->specified == AVTAB_XPERMS_IOCTLFUNCTION) { in services_compute_xperms_drivers()
608 security_xperm_set(xperms->drivers.p, in services_compute_xperms_drivers()
609 node->datum.u.xperms->driver); in services_compute_xperms_drivers()
613 if (node->key.specified & AVTAB_XPERMS_ALLOWED) 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()
641 memset(&xperms->drivers, 0, sizeof(xperms->drivers)); in context_struct_compute_av()
642 xperms->len = 0; in context_struct_compute_av()
645 if (unlikely(!tclass || tclass > policydb->p_classes.nprim)) { in context_struct_compute_av()
651 tclass_datum = policydb->class_val_to_struct[tclass - 1]; in context_struct_compute_av()
659 sattr = &policydb->type_attr_map_array[scontext->type - 1]; in context_struct_compute_av()
660 tattr = &policydb->type_attr_map_array[tcontext->type - 1]; in context_struct_compute_av()
665 for (node = avtab_search_node(&policydb->te_avtab, in context_struct_compute_av()
669 if (node->key.specified == AVTAB_ALLOWED) in context_struct_compute_av()
670 avd->allowed |= node->datum.u.data; in context_struct_compute_av()
671 else if (node->key.specified == AVTAB_AUDITALLOW) in context_struct_compute_av()
672 avd->auditallow |= node->datum.u.data; in context_struct_compute_av()
673 else if (node->key.specified == AVTAB_AUDITDENY) in context_struct_compute_av()
674 avd->auditdeny &= node->datum.u.data; in context_struct_compute_av()
675 else if (xperms && (node->key.specified & AVTAB_XPERMS)) in context_struct_compute_av()
680 cond_compute_av(&policydb->te_cond_avtab, &avkey, in context_struct_compute_av()
690 constraint = tclass_datum->constraints; in context_struct_compute_av()
692 if ((constraint->permissions & (avd->allowed)) && in context_struct_compute_av()
694 constraint->expr)) { in context_struct_compute_av()
695 avd->allowed &= ~(constraint->permissions); in context_struct_compute_av()
697 constraint = constraint->next; in context_struct_compute_av()
705 if (tclass == policydb->process_class && in context_struct_compute_av()
706 (avd->allowed & policydb->process_trans_perms) && in context_struct_compute_av()
707 scontext->role != tcontext->role) { in context_struct_compute_av()
708 for (ra = policydb->role_allow; ra; ra = ra->next) { in context_struct_compute_av()
709 if (scontext->role == ra->role && in context_struct_compute_av()
710 tcontext->role == ra->new_role) in context_struct_compute_av()
714 avd->allowed &= ~policydb->process_trans_perms; in context_struct_compute_av()
733 struct policydb *p = &policy->policydb; in security_validtrans_handle_fail()
734 struct sidtab *sidtab = policy->sidtab; in security_validtrans_handle_fail()
747 o, n, t, sym_name(p, SYM_CLASSES, tclass-1)); in security_validtrans_handle_fail()
755 return -EPERM; in security_validtrans_handle_fail()
771 int rc = 0; in security_compute_validatetrans() local
779 policy = rcu_dereference(state->policy); in security_compute_validatetrans()
780 policydb = &policy->policydb; in security_compute_validatetrans()
781 sidtab = policy->sidtab; in security_compute_validatetrans()
784 tclass = unmap_class(&policy->map, orig_tclass); in security_compute_validatetrans()
788 if (!tclass || tclass > policydb->p_classes.nprim) { in security_compute_validatetrans()
789 rc = -EINVAL; in security_compute_validatetrans()
792 tclass_datum = policydb->class_val_to_struct[tclass - 1]; in security_compute_validatetrans()
798 rc = -EINVAL; in security_compute_validatetrans()
806 rc = -EINVAL; in security_compute_validatetrans()
814 rc = -EINVAL; in security_compute_validatetrans()
818 constraint = tclass_datum->validatetrans; in security_compute_validatetrans()
820 if (!constraint_expr_eval(policydb, &oentry->context, in security_compute_validatetrans()
821 &nentry->context, &tentry->context, in security_compute_validatetrans()
822 constraint->expr)) { in security_compute_validatetrans()
824 rc = -EPERM; in security_compute_validatetrans()
826 rc = security_validtrans_handle_fail(state, in security_compute_validatetrans()
834 constraint = constraint->next; in security_compute_validatetrans()
839 return rc; in security_compute_validatetrans()
859 * security_bounded_transition - check whether the given
876 int rc; in security_bounded_transition() local
882 policy = rcu_dereference(state->policy); in security_bounded_transition()
883 policydb = &policy->policydb; in security_bounded_transition()
884 sidtab = policy->sidtab; in security_bounded_transition()
886 rc = -EINVAL; in security_bounded_transition()
894 rc = -EINVAL; in security_bounded_transition()
902 rc = 0; in security_bounded_transition()
904 if (old_entry->context.type == new_entry->context.type) in security_bounded_transition()
907 index = new_entry->context.type; in security_bounded_transition()
909 type = policydb->type_val_to_struct[index - 1]; in security_bounded_transition()
913 rc = -EPERM; in security_bounded_transition()
914 if (!type->bounds) in security_bounded_transition()
918 rc = 0; in security_bounded_transition()
919 if (type->bounds == old_entry->context.type) in security_bounded_transition()
922 index = type->bounds; in security_bounded_transition()
925 if (rc) { in security_bounded_transition()
947 return rc; in security_bounded_transition()
952 avd->allowed = 0; in avd_init()
953 avd->auditallow = 0; in avd_init()
954 avd->auditdeny = 0xffffffff; in avd_init()
956 avd->seqno = policy->latest_granting; in avd_init()
958 avd->seqno = 0; in avd_init()
959 avd->flags = 0; in avd_init()
967 if (node->datum.u.xperms->specified == AVTAB_XPERMS_IOCTLFUNCTION) { in services_compute_xperms_decision()
968 if (xpermd->driver != node->datum.u.xperms->driver) in services_compute_xperms_decision()
970 } else if (node->datum.u.xperms->specified == AVTAB_XPERMS_IOCTLDRIVER) { in services_compute_xperms_decision()
971 if (!security_xperm_test(node->datum.u.xperms->perms.p, in services_compute_xperms_decision()
972 xpermd->driver)) in services_compute_xperms_decision()
978 if (node->key.specified == AVTAB_XPERMS_ALLOWED) { in services_compute_xperms_decision()
979 xpermd->used |= XPERMS_ALLOWED; in services_compute_xperms_decision()
980 if (node->datum.u.xperms->specified == AVTAB_XPERMS_IOCTLDRIVER) { in services_compute_xperms_decision()
981 memset(xpermd->allowed->p, 0xff, in services_compute_xperms_decision()
982 sizeof(xpermd->allowed->p)); in services_compute_xperms_decision()
984 if (node->datum.u.xperms->specified == AVTAB_XPERMS_IOCTLFUNCTION) { in services_compute_xperms_decision()
985 for (i = 0; i < ARRAY_SIZE(xpermd->allowed->p); i++) in services_compute_xperms_decision()
986 xpermd->allowed->p[i] |= in services_compute_xperms_decision()
987 node->datum.u.xperms->perms.p[i]; in services_compute_xperms_decision()
989 } else if (node->key.specified == AVTAB_XPERMS_AUDITALLOW) { in services_compute_xperms_decision()
990 xpermd->used |= XPERMS_AUDITALLOW; in services_compute_xperms_decision()
991 if (node->datum.u.xperms->specified == AVTAB_XPERMS_IOCTLDRIVER) { in services_compute_xperms_decision()
992 memset(xpermd->auditallow->p, 0xff, in services_compute_xperms_decision()
993 sizeof(xpermd->auditallow->p)); in services_compute_xperms_decision()
995 if (node->datum.u.xperms->specified == AVTAB_XPERMS_IOCTLFUNCTION) { in services_compute_xperms_decision()
996 for (i = 0; i < ARRAY_SIZE(xpermd->auditallow->p); i++) in services_compute_xperms_decision()
997 xpermd->auditallow->p[i] |= in services_compute_xperms_decision()
998 node->datum.u.xperms->perms.p[i]; in services_compute_xperms_decision()
1000 } else if (node->key.specified == AVTAB_XPERMS_DONTAUDIT) { in services_compute_xperms_decision()
1001 xpermd->used |= XPERMS_DONTAUDIT; in services_compute_xperms_decision()
1002 if (node->datum.u.xperms->specified == AVTAB_XPERMS_IOCTLDRIVER) { in services_compute_xperms_decision()
1003 memset(xpermd->dontaudit->p, 0xff, in services_compute_xperms_decision()
1004 sizeof(xpermd->dontaudit->p)); in services_compute_xperms_decision()
1006 if (node->datum.u.xperms->specified == AVTAB_XPERMS_IOCTLFUNCTION) { in services_compute_xperms_decision()
1007 for (i = 0; i < ARRAY_SIZE(xpermd->dontaudit->p); i++) in services_compute_xperms_decision()
1008 xpermd->dontaudit->p[i] |= in services_compute_xperms_decision()
1009 node->datum.u.xperms->perms.p[i]; in services_compute_xperms_decision()
1034 xpermd->driver = driver; in security_compute_xperms_decision()
1035 xpermd->used = 0; in security_compute_xperms_decision()
1036 memset(xpermd->allowed->p, 0, sizeof(xpermd->allowed->p)); in security_compute_xperms_decision()
1037 memset(xpermd->auditallow->p, 0, sizeof(xpermd->auditallow->p)); in security_compute_xperms_decision()
1038 memset(xpermd->dontaudit->p, 0, sizeof(xpermd->dontaudit->p)); in security_compute_xperms_decision()
1044 policy = rcu_dereference(state->policy); in security_compute_xperms_decision()
1045 policydb = &policy->policydb; in security_compute_xperms_decision()
1046 sidtab = policy->sidtab; in security_compute_xperms_decision()
1062 tclass = unmap_class(&policy->map, orig_tclass); in security_compute_xperms_decision()
1064 if (policydb->allow_unknown) in security_compute_xperms_decision()
1070 if (unlikely(!tclass || tclass > policydb->p_classes.nprim)) { in security_compute_xperms_decision()
1077 sattr = &policydb->type_attr_map_array[scontext->type - 1]; in security_compute_xperms_decision()
1078 tattr = &policydb->type_attr_map_array[tcontext->type - 1]; in security_compute_xperms_decision()
1083 for (node = avtab_search_node(&policydb->te_avtab, in security_compute_xperms_decision()
1089 cond_compute_xperms(&policydb->te_cond_avtab, in security_compute_xperms_decision()
1097 memset(xpermd->allowed->p, 0xff, sizeof(xpermd->allowed->p)); in security_compute_xperms_decision()
1102 * security_compute_av - Compute access vector decisions.
1126 policy = rcu_dereference(state->policy); in security_compute_av()
1128 xperms->len = 0; in security_compute_av()
1132 policydb = &policy->policydb; in security_compute_av()
1133 sidtab = policy->sidtab; in security_compute_av()
1143 if (ebitmap_get_bit(&policydb->permissive_map, scontext->type)) in security_compute_av()
1144 avd->flags |= AVD_FLAGS_PERMISSIVE; in security_compute_av()
1153 tclass = unmap_class(&policy->map, orig_tclass); in security_compute_av()
1155 if (policydb->allow_unknown) in security_compute_av()
1161 map_decision(&policy->map, orig_tclass, avd, in security_compute_av()
1162 policydb->allow_unknown); in security_compute_av()
1167 avd->allowed = 0xffffffff; in security_compute_av()
1183 policy = rcu_dereference(state->policy); in security_compute_av_user()
1188 policydb = &policy->policydb; in security_compute_av_user()
1189 sidtab = policy->sidtab; in security_compute_av_user()
1199 if (ebitmap_get_bit(&policydb->permissive_map, scontext->type)) in security_compute_av_user()
1200 avd->flags |= AVD_FLAGS_PERMISSIVE; in security_compute_av_user()
1210 if (policydb->allow_unknown) in security_compute_av_user()
1221 avd->allowed = 0xffffffff; in security_compute_av_user()
1242 if (context->len) { in context_struct_to_string()
1243 *scontext_len = context->len; in context_struct_to_string()
1245 *scontext = kstrdup(context->str, GFP_ATOMIC); in context_struct_to_string()
1247 return -ENOMEM; in context_struct_to_string()
1253 *scontext_len += strlen(sym_name(p, SYM_USERS, context->user - 1)) + 1; in context_struct_to_string()
1254 *scontext_len += strlen(sym_name(p, SYM_ROLES, context->role - 1)) + 1; in context_struct_to_string()
1255 *scontext_len += strlen(sym_name(p, SYM_TYPES, context->type - 1)) + 1; in context_struct_to_string()
1264 return -ENOMEM; in context_struct_to_string()
1268 * Copy the user name, role name and type name into the context. in context_struct_to_string()
1271 sym_name(p, SYM_USERS, context->user - 1), in context_struct_to_string()
1272 sym_name(p, SYM_ROLES, context->role - 1), in context_struct_to_string()
1273 sym_name(p, SYM_TYPES, context->type - 1)); in context_struct_to_string()
1287 int rc = sidtab_sid2str_get(sidtab, entry, scontext, scontext_len); in sidtab_entry_to_string() local
1289 if (rc != -ENOENT) in sidtab_entry_to_string()
1290 return rc; in sidtab_entry_to_string()
1292 rc = context_struct_to_string(p, &entry->context, scontext, in sidtab_entry_to_string()
1294 if (!rc && scontext) in sidtab_entry_to_string()
1296 return rc; in sidtab_entry_to_string()
1304 int rc; in security_sidtab_hash_stats() local
1309 return -EINVAL; in security_sidtab_hash_stats()
1313 policy = rcu_dereference(state->policy); in security_sidtab_hash_stats()
1314 rc = sidtab_hash_stats(policy->sidtab, page); in security_sidtab_hash_stats()
1317 return rc; in security_sidtab_hash_stats()
1336 int rc = 0; in security_sid_to_context_core() local
1348 return -EINVAL; in security_sid_to_context_core()
1354 return -ENOMEM; in security_sid_to_context_core()
1360 return -EINVAL; in security_sid_to_context_core()
1363 policy = rcu_dereference(state->policy); in security_sid_to_context_core()
1364 policydb = &policy->policydb; in security_sid_to_context_core()
1365 sidtab = policy->sidtab; in security_sid_to_context_core()
1374 rc = -EINVAL; in security_sid_to_context_core()
1377 if (only_invalid && !entry->context.len) in security_sid_to_context_core()
1380 rc = sidtab_entry_to_string(policydb, sidtab, entry, scontext, in security_sid_to_context_core()
1385 return rc; in security_sid_to_context_core()
1390 * security_sid_to_context - Obtain a context for a given SID.
1414 * security_sid_to_context_inval - Obtain a context for a given SID if it
1446 int rc = 0; in string_to_context_struct() local
1452 rc = -EINVAL; in string_to_context_struct()
1465 usrdatum = symtab_search(&pol->p_users, scontextp); in string_to_context_struct()
1469 ctx->user = usrdatum->value; in string_to_context_struct()
1481 role = symtab_search(&pol->p_roles, scontextp); in string_to_context_struct()
1484 ctx->role = role->value; in string_to_context_struct()
1493 typdatum = symtab_search(&pol->p_types, scontextp); in string_to_context_struct()
1494 if (!typdatum || typdatum->attribute) in string_to_context_struct()
1497 ctx->type = typdatum->value; in string_to_context_struct()
1499 rc = mls_context_to_sid(pol, oldc, p, ctx, sidtabp, def_sid); in string_to_context_struct()
1500 if (rc) in string_to_context_struct()
1504 rc = -EINVAL; in string_to_context_struct()
1507 rc = 0; in string_to_context_struct()
1509 if (rc) in string_to_context_struct()
1511 return rc; in string_to_context_struct()
1524 int rc = 0; in security_context_to_sid_core() local
1528 return -EINVAL; in security_context_to_sid_core()
1533 return -ENOMEM; in security_context_to_sid_core()
1553 rc = -ENOMEM; in security_context_to_sid_core()
1560 policy = rcu_dereference(state->policy); in security_context_to_sid_core()
1561 policydb = &policy->policydb; in security_context_to_sid_core()
1562 sidtab = policy->sidtab; in security_context_to_sid_core()
1563 rc = string_to_context_struct(policydb, sidtab, scontext2, in security_context_to_sid_core()
1565 if (rc == -EINVAL && force) { in security_context_to_sid_core()
1569 } else if (rc) in security_context_to_sid_core()
1571 rc = sidtab_context_to_sid(sidtab, &context, sid); in security_context_to_sid_core()
1572 if (rc == -ESTALE) { in security_context_to_sid_core()
1587 return rc; in security_context_to_sid_core()
1591 * security_context_to_sid - Obtain a SID for a given security context.
1599 * Returns -%EINVAL if the context is invalid, -%ENOMEM if insufficient
1618 * security_context_to_sid_default - Obtain a SID for a given security context,
1632 * Returns -%EINVAL if the context is invalid, -%ENOMEM if insufficient
1659 struct policydb *policydb = &policy->policydb; in compute_sid_handle_invalid_context()
1660 struct sidtab *sidtab = policy->sidtab; in compute_sid_handle_invalid_context()
1675 audit_log_n_untrustedstring(ab, n, nlen - 1); in compute_sid_handle_invalid_context()
1677 s, t, sym_name(policydb, SYM_CLASSES, tclass-1)); in compute_sid_handle_invalid_context()
1685 return -EACCES; in compute_sid_handle_invalid_context()
1701 if (!ebitmap_get_bit(&policydb->filename_trans_ttypes, ttype)) in filename_compute_type()
1706 ft.name = objname; in filename_compute_type()
1710 if (ebitmap_get_bit(&datum->stypes, stype - 1)) { in filename_compute_type()
1711 newcontext->type = datum->otype; in filename_compute_type()
1714 datum = datum->next; in filename_compute_type()
1737 int rc = 0; in security_compute_sid() local
1758 policy = rcu_dereference(state->policy); in security_compute_sid()
1761 tclass = unmap_class(&policy->map, orig_tclass); in security_compute_sid()
1765 sock = security_is_socket_class(map_class(&policy->map, in security_compute_sid()
1769 policydb = &policy->policydb; in security_compute_sid()
1770 sidtab = policy->sidtab; in security_compute_sid()
1776 rc = -EINVAL; in security_compute_sid()
1783 rc = -EINVAL; in security_compute_sid()
1787 scontext = &sentry->context; in security_compute_sid()
1788 tcontext = &tentry->context; in security_compute_sid()
1790 if (tclass && tclass <= policydb->p_classes.nprim) in security_compute_sid()
1791 cladatum = policydb->class_val_to_struct[tclass - 1]; in security_compute_sid()
1797 if (cladatum && cladatum->default_user == DEFAULT_TARGET) { in security_compute_sid()
1798 newcontext.user = tcontext->user; in security_compute_sid()
1802 newcontext.user = scontext->user; in security_compute_sid()
1807 newcontext.user = tcontext->user; in security_compute_sid()
1812 if (cladatum && cladatum->default_role == DEFAULT_SOURCE) { in security_compute_sid()
1813 newcontext.role = scontext->role; in security_compute_sid()
1814 } else if (cladatum && cladatum->default_role == DEFAULT_TARGET) { in security_compute_sid()
1815 newcontext.role = tcontext->role; in security_compute_sid()
1817 if ((tclass == policydb->process_class) || sock) in security_compute_sid()
1818 newcontext.role = scontext->role; in security_compute_sid()
1824 if (cladatum && cladatum->default_type == DEFAULT_SOURCE) { in security_compute_sid()
1825 newcontext.type = scontext->type; in security_compute_sid()
1826 } else if (cladatum && cladatum->default_type == DEFAULT_TARGET) { in security_compute_sid()
1827 newcontext.type = tcontext->type; in security_compute_sid()
1829 if ((tclass == policydb->process_class) || sock) { in security_compute_sid()
1831 newcontext.type = scontext->type; in security_compute_sid()
1834 newcontext.type = tcontext->type; in security_compute_sid()
1839 avkey.source_type = scontext->type; in security_compute_sid()
1840 avkey.target_type = tcontext->type; in security_compute_sid()
1843 avdatum = avtab_search(&policydb->te_avtab, &avkey); in security_compute_sid()
1847 node = avtab_search_node(&policydb->te_cond_avtab, &avkey); in security_compute_sid()
1849 if (node->key.specified & AVTAB_ENABLED) { in security_compute_sid()
1850 avdatum = &node->datum; in security_compute_sid()
1858 newcontext.type = avdatum->u.data; in security_compute_sid()
1863 filename_compute_type(policydb, &newcontext, scontext->type, in security_compute_sid()
1864 tcontext->type, tclass, objname); in security_compute_sid()
1866 /* Check for class-specific changes. */ in security_compute_sid()
1871 .role = scontext->role, in security_compute_sid()
1872 .type = tcontext->type, in security_compute_sid()
1878 newcontext.role = rtd->new_role; in security_compute_sid()
1883 rc = mls_compute_sid(policydb, scontext, tcontext, tclass, specified, in security_compute_sid()
1885 if (rc) in security_compute_sid()
1890 rc = compute_sid_handle_invalid_context(state, policy, sentry, in security_compute_sid()
1893 if (rc) in security_compute_sid()
1897 rc = sidtab_context_to_sid(sidtab, &newcontext, out_sid); in security_compute_sid()
1898 if (rc == -ESTALE) { in security_compute_sid()
1907 return rc; in security_compute_sid()
1911 * security_transition_sid - Compute the SID for a new subject/object.
1919 * Return -%EINVAL if any of the parameters are invalid, -%ENOMEM
1929 qstr ? qstr->name : NULL, out_sid, true); in security_transition_sid()
1942 * security_member_sid - Compute the SID for member selection.
1950 * Return -%EINVAL if any of the parameters are invalid, -%ENOMEM
1966 * security_change_sid - Compute the SID for object relabeling.
1974 * Return -%EINVAL if any of the parameters are invalid, -%ENOMEM
1998 return -EINVAL; in convert_context_handle_invalid_context()
2011 * in the policy `p->oldp' to the values specified
2012 * in the policy `p->newp', storing the new context
2026 int rc; in convert_context() local
2030 if (oldc->str) { in convert_context()
2031 s = kstrdup(oldc->str, gfp_flags); in convert_context()
2033 return -ENOMEM; in convert_context()
2035 rc = string_to_context_struct(args->newp, NULL, s, in convert_context()
2037 if (rc == -EINVAL) { in convert_context()
2041 * IMPORTANT: We need to copy the contents of oldc->str in convert_context()
2045 memcpy(s, oldc->str, oldc->len); in convert_context()
2047 newc->str = s; in convert_context()
2048 newc->len = oldc->len; in convert_context()
2052 if (rc) { in convert_context()
2054 pr_err("SELinux: Unable to map context %s, rc = %d.\n", in convert_context()
2055 oldc->str, -rc); in convert_context()
2056 return rc; in convert_context()
2059 oldc->str); in convert_context()
2066 rc = -EINVAL; in convert_context()
2067 usrdatum = symtab_search(&args->newp->p_users, in convert_context()
2068 sym_name(args->oldp, in convert_context()
2069 SYM_USERS, oldc->user - 1)); in convert_context()
2072 newc->user = usrdatum->value; in convert_context()
2075 rc = -EINVAL; in convert_context()
2076 role = symtab_search(&args->newp->p_roles, in convert_context()
2077 sym_name(args->oldp, SYM_ROLES, oldc->role - 1)); in convert_context()
2080 newc->role = role->value; in convert_context()
2083 rc = -EINVAL; in convert_context()
2084 typdatum = symtab_search(&args->newp->p_types, in convert_context()
2085 sym_name(args->oldp, in convert_context()
2086 SYM_TYPES, oldc->type - 1)); in convert_context()
2089 newc->type = typdatum->value; in convert_context()
2092 if (args->oldp->mls_enabled && args->newp->mls_enabled) { in convert_context()
2093 rc = mls_convert_context(args->oldp, args->newp, oldc, newc); in convert_context()
2094 if (rc) in convert_context()
2096 } else if (!args->oldp->mls_enabled && args->newp->mls_enabled) { in convert_context()
2098 * Switching between non-MLS and MLS policy: in convert_context()
2104 oc = args->newp->ocontexts[OCON_ISID]; in convert_context()
2105 while (oc && oc->sid[0] != SECINITSID_UNLABELED) in convert_context()
2106 oc = oc->next; in convert_context()
2107 rc = -EINVAL; in convert_context()
2113 rc = mls_range_set(newc, &oc->context[0].range); in convert_context()
2114 if (rc) in convert_context()
2119 if (!policydb_context_isvalid(args->newp, newc)) { in convert_context()
2120 rc = convert_context_handle_invalid_context(args->state, in convert_context()
2121 args->oldp, in convert_context()
2123 if (rc) in convert_context()
2129 /* Map old representation to string and save it. */ in convert_context()
2130 rc = context_struct_to_string(args->oldp, oldc, &s, &len); in convert_context()
2131 if (rc) in convert_context()
2132 return rc; in convert_context()
2134 newc->str = s; in convert_context()
2135 newc->len = len; in convert_context()
2137 newc->str); in convert_context()
2148 p = &policy->policydb; in security_load_policycaps()
2150 for (i = 0; i < ARRAY_SIZE(state->policycap); i++) in security_load_policycaps()
2151 WRITE_ONCE(state->policycap[i], in security_load_policycaps()
2152 ebitmap_get_bit(&p->policycaps, i)); in security_load_policycaps()
2157 ebitmap_get_bit(&p->policycaps, i)); in security_load_policycaps()
2159 ebitmap_for_each_positive_bit(&p->policycaps, node, i) { in security_load_policycaps()
2165 state->android_netlink_route = p->android_netlink_route; in security_load_policycaps()
2166 state->android_netlink_getneigh = p->android_netlink_getneigh; in security_load_policycaps()
2178 sidtab_destroy(policy->sidtab); in selinux_policy_free()
2179 kfree(policy->map.mapping); in selinux_policy_free()
2180 policydb_destroy(&policy->policydb); in selinux_policy_free()
2181 kfree(policy->sidtab); in selinux_policy_free()
2187 cond_policydb_destroy_dup(&policy->policydb); in selinux_policy_cond_free()
2196 oldpolicy = rcu_dereference_protected(state->policy, in selinux_policy_cancel()
2197 lockdep_is_held(&state->policy_mutex)); in selinux_policy_cancel()
2199 sidtab_cancel_convert(oldpolicy->sidtab); in selinux_policy_cancel()
2200 selinux_policy_free(load_state->policy); in selinux_policy_cancel()
2201 kfree(load_state->convert_data); in selinux_policy_cancel()
2208 avc_ss_reset(state->avc, seqno); in selinux_notify_policy_change()
2218 struct selinux_policy *oldpolicy, *newpolicy = load_state->policy; in selinux_policy_commit()
2222 oldpolicy = rcu_dereference_protected(state->policy, in selinux_policy_commit()
2223 lockdep_is_held(&state->policy_mutex)); in selinux_policy_commit()
2227 if (oldpolicy->policydb.mls_enabled && !newpolicy->policydb.mls_enabled) in selinux_policy_commit()
2229 else if (!oldpolicy->policydb.mls_enabled && newpolicy->policydb.mls_enabled) in selinux_policy_commit()
2235 newpolicy->latest_granting = oldpolicy->latest_granting + 1; in selinux_policy_commit()
2237 newpolicy->latest_granting = 1; in selinux_policy_commit()
2238 seqno = newpolicy->latest_granting; in selinux_policy_commit()
2242 sidtab_freeze_begin(oldpolicy->sidtab, &flags); in selinux_policy_commit()
2243 rcu_assign_pointer(state->policy, newpolicy); in selinux_policy_commit()
2244 sidtab_freeze_end(oldpolicy->sidtab, &flags); in selinux_policy_commit()
2246 rcu_assign_pointer(state->policy, newpolicy); in selinux_policy_commit()
2266 kfree(load_state->convert_data); in selinux_policy_commit()
2273 * security_load_policy - Load a security policy configuration.
2287 int rc = 0; in security_load_policy() local
2292 return -ENOMEM; in security_load_policy()
2294 newpolicy->sidtab = kzalloc(sizeof(*newpolicy->sidtab), GFP_KERNEL); in security_load_policy()
2295 if (!newpolicy->sidtab) { in security_load_policy()
2296 rc = -ENOMEM; in security_load_policy()
2300 rc = policydb_read(&newpolicy->policydb, fp); in security_load_policy()
2301 if (rc) in security_load_policy()
2304 newpolicy->policydb.len = len; in security_load_policy()
2305 rc = selinux_set_mapping(&newpolicy->policydb, secclass_map, in security_load_policy()
2306 &newpolicy->map); in security_load_policy()
2307 if (rc) in security_load_policy()
2310 rc = policydb_load_isids(&newpolicy->policydb, newpolicy->sidtab); in security_load_policy()
2311 if (rc) { in security_load_policy()
2318 load_state->policy = newpolicy; in security_load_policy()
2319 load_state->convert_data = NULL; in security_load_policy()
2323 oldpolicy = rcu_dereference_protected(state->policy, in security_load_policy()
2324 lockdep_is_held(&state->policy_mutex)); in security_load_policy()
2327 rc = security_preserve_bools(oldpolicy, newpolicy); in security_load_policy()
2328 if (rc) { in security_load_policy()
2335 rc = -ENOMEM; in security_load_policy()
2343 convert_data->args.state = state; in security_load_policy()
2344 convert_data->args.oldp = &oldpolicy->policydb; in security_load_policy()
2345 convert_data->args.newp = &newpolicy->policydb; in security_load_policy()
2347 convert_data->sidtab_params.func = convert_context; in security_load_policy()
2348 convert_data->sidtab_params.args = &convert_data->args; in security_load_policy()
2349 convert_data->sidtab_params.target = newpolicy->sidtab; in security_load_policy()
2351 rc = sidtab_convert(oldpolicy->sidtab, &convert_data->sidtab_params); in security_load_policy()
2352 if (rc) { in security_load_policy()
2359 load_state->policy = newpolicy; in security_load_policy()
2360 load_state->convert_data = convert_data; in security_load_policy()
2366 sidtab_destroy(newpolicy->sidtab); in security_load_policy()
2368 kfree(newpolicy->map.mapping); in security_load_policy()
2370 policydb_destroy(&newpolicy->policydb); in security_load_policy()
2372 kfree(newpolicy->sidtab); in security_load_policy()
2376 return rc; in security_load_policy()
2380 * ocontext_to_sid - Helper to safely get sid for an ocontext
2387 * on-demand when needed. Since updating the SID value is an SMP-sensitive
2390 * WARNING: This function may return -ESTALE, indicating that the caller
2391 * must retry the operation after re-acquiring the policy pointer!
2396 int rc; in ocontext_to_sid() local
2400 sid = smp_load_acquire(&c->sid[index]); in ocontext_to_sid()
2402 rc = sidtab_context_to_sid(sidtab, &c->context[index], &sid); in ocontext_to_sid()
2403 if (rc) in ocontext_to_sid()
2404 return rc; in ocontext_to_sid()
2410 smp_store_release(&c->sid[index], sid); in ocontext_to_sid()
2417 * security_port_sid - Obtain the SID for a port.
2429 int rc; in security_port_sid() local
2437 rc = 0; in security_port_sid()
2439 policy = rcu_dereference(state->policy); in security_port_sid()
2440 policydb = &policy->policydb; in security_port_sid()
2441 sidtab = policy->sidtab; in security_port_sid()
2443 c = policydb->ocontexts[OCON_PORT]; in security_port_sid()
2445 if (c->u.port.protocol == protocol && in security_port_sid()
2446 c->u.port.low_port <= port && in security_port_sid()
2447 c->u.port.high_port >= port) in security_port_sid()
2449 c = c->next; in security_port_sid()
2453 rc = ocontext_to_sid(sidtab, c, 0, out_sid); in security_port_sid()
2454 if (rc == -ESTALE) { in security_port_sid()
2458 if (rc) in security_port_sid()
2466 return rc; in security_port_sid()
2470 * security_pkey_sid - Obtain the SID for a pkey.
2482 int rc; in security_ib_pkey_sid() local
2490 rc = 0; in security_ib_pkey_sid()
2492 policy = rcu_dereference(state->policy); in security_ib_pkey_sid()
2493 policydb = &policy->policydb; in security_ib_pkey_sid()
2494 sidtab = policy->sidtab; in security_ib_pkey_sid()
2496 c = policydb->ocontexts[OCON_IBPKEY]; in security_ib_pkey_sid()
2498 if (c->u.ibpkey.low_pkey <= pkey_num && in security_ib_pkey_sid()
2499 c->u.ibpkey.high_pkey >= pkey_num && in security_ib_pkey_sid()
2500 c->u.ibpkey.subnet_prefix == subnet_prefix) in security_ib_pkey_sid()
2503 c = c->next; in security_ib_pkey_sid()
2507 rc = ocontext_to_sid(sidtab, c, 0, out_sid); in security_ib_pkey_sid()
2508 if (rc == -ESTALE) { in security_ib_pkey_sid()
2512 if (rc) in security_ib_pkey_sid()
2519 return rc; in security_ib_pkey_sid()
2523 * security_ib_endport_sid - Obtain the SID for a subnet management interface.
2524 * @dev_name: device name
2535 int rc; in security_ib_endport_sid() local
2543 rc = 0; in security_ib_endport_sid()
2545 policy = rcu_dereference(state->policy); in security_ib_endport_sid()
2546 policydb = &policy->policydb; in security_ib_endport_sid()
2547 sidtab = policy->sidtab; in security_ib_endport_sid()
2549 c = policydb->ocontexts[OCON_IBENDPORT]; in security_ib_endport_sid()
2551 if (c->u.ibendport.port == port_num && in security_ib_endport_sid()
2552 !strncmp(c->u.ibendport.dev_name, in security_ib_endport_sid()
2557 c = c->next; in security_ib_endport_sid()
2561 rc = ocontext_to_sid(sidtab, c, 0, out_sid); in security_ib_endport_sid()
2562 if (rc == -ESTALE) { in security_ib_endport_sid()
2566 if (rc) in security_ib_endport_sid()
2573 return rc; in security_ib_endport_sid()
2577 * security_netif_sid - Obtain the SID for a network interface.
2578 * @name: interface name
2582 char *name, u32 *if_sid) in security_netif_sid() argument
2587 int rc; in security_netif_sid() local
2596 rc = 0; in security_netif_sid()
2598 policy = rcu_dereference(state->policy); in security_netif_sid()
2599 policydb = &policy->policydb; in security_netif_sid()
2600 sidtab = policy->sidtab; in security_netif_sid()
2602 c = policydb->ocontexts[OCON_NETIF]; in security_netif_sid()
2604 if (strcmp(name, c->u.name) == 0) in security_netif_sid()
2606 c = c->next; in security_netif_sid()
2610 rc = ocontext_to_sid(sidtab, c, 0, if_sid); in security_netif_sid()
2611 if (rc == -ESTALE) { in security_netif_sid()
2615 if (rc) in security_netif_sid()
2622 return rc; in security_netif_sid()
2639 * security_node_sid - Obtain the SID for a node (host).
2654 int rc; in security_node_sid() local
2664 policy = rcu_dereference(state->policy); in security_node_sid()
2665 policydb = &policy->policydb; in security_node_sid()
2666 sidtab = policy->sidtab; in security_node_sid()
2672 rc = -EINVAL; in security_node_sid()
2678 c = policydb->ocontexts[OCON_NODE]; in security_node_sid()
2680 if (c->u.node.addr == (addr & c->u.node.mask)) in security_node_sid()
2682 c = c->next; in security_node_sid()
2688 rc = -EINVAL; in security_node_sid()
2691 c = policydb->ocontexts[OCON_NODE6]; in security_node_sid()
2693 if (match_ipv6_addrmask(addrp, c->u.node6.addr, in security_node_sid()
2694 c->u.node6.mask)) in security_node_sid()
2696 c = c->next; in security_node_sid()
2701 rc = 0; in security_node_sid()
2707 rc = ocontext_to_sid(sidtab, c, 0, out_sid); in security_node_sid()
2708 if (rc == -ESTALE) { in security_node_sid()
2712 if (rc) in security_node_sid()
2718 rc = 0; in security_node_sid()
2721 return rc; in security_node_sid()
2727 * security_get_user_sids - Obtain reachable SIDs for a user.
2755 int rc; in security_get_user_sids() local
2765 return -ENOMEM; in security_get_user_sids()
2770 policy = rcu_dereference(state->policy); in security_get_user_sids()
2771 policydb = &policy->policydb; in security_get_user_sids()
2772 sidtab = policy->sidtab; in security_get_user_sids()
2776 rc = -EINVAL; in security_get_user_sids()
2781 rc = -EINVAL; in security_get_user_sids()
2782 user = symtab_search(&policydb->p_users, username); in security_get_user_sids()
2786 usercon.user = user->value; in security_get_user_sids()
2788 ebitmap_for_each_positive_bit(&user->roles, rnode, i) { in security_get_user_sids()
2789 role = policydb->role_val_to_struct[i]; in security_get_user_sids()
2791 ebitmap_for_each_positive_bit(&role->types, tnode, j) { in security_get_user_sids()
2798 rc = sidtab_context_to_sid(sidtab, &usercon, &sid); in security_get_user_sids()
2799 if (rc == -ESTALE) { in security_get_user_sids()
2803 if (rc) in security_get_user_sids()
2808 rc = -ENOMEM; in security_get_user_sids()
2820 rc = 0; in security_get_user_sids()
2823 if (rc || !mynel) { in security_get_user_sids()
2825 return rc; in security_get_user_sids()
2828 rc = -ENOMEM; in security_get_user_sids()
2832 return rc; in security_get_user_sids()
2836 rc = avc_has_perm_noaudit(state, in security_get_user_sids()
2841 if (!rc) in security_get_user_sids()
2852 * __security_genfs_sid - Helper to obtain a SID for a file in a filesystem
2862 * WARNING: This function may return -ESTALE, indicating that the caller
2863 * must retry the operation after re-acquiring the policy pointer!
2871 struct policydb *policydb = &policy->policydb; in __security_genfs_sid()
2872 struct sidtab *sidtab = policy->sidtab; in __security_genfs_sid()
2882 sclass = unmap_class(&policy->map, orig_sclass); in __security_genfs_sid()
2885 for (genfs = policydb->genfs; genfs; genfs = genfs->next) { in __security_genfs_sid()
2886 cmp = strcmp(fstype, genfs->fstype); in __security_genfs_sid()
2892 return -ENOENT; in __security_genfs_sid()
2894 for (c = genfs->head; c; c = c->next) { in __security_genfs_sid()
2895 len = strlen(c->u.name); in __security_genfs_sid()
2896 if ((!c->v.sclass || sclass == c->v.sclass) && in __security_genfs_sid()
2897 (strncmp(c->u.name, path, len) == 0)) in __security_genfs_sid()
2902 return -ENOENT; in __security_genfs_sid()
2908 * security_genfs_sid - Obtain a SID for a file in a filesystem
2933 policy = rcu_dereference(state->policy); in security_genfs_sid()
2937 } while (retval == -ESTALE); in security_genfs_sid()
2952 * security_fs_use - Determine how to handle labeling for a filesystem.
2960 int rc; in security_fs_use() local
2962 struct superblock_security_struct *sbsec = sb->s_security; in security_fs_use()
2963 const char *fstype = sb->s_type->name; in security_fs_use()
2966 sbsec->behavior = SECURITY_FS_USE_NONE; in security_fs_use()
2967 sbsec->sid = SECINITSID_UNLABELED; in security_fs_use()
2972 rc = 0; in security_fs_use()
2974 policy = rcu_dereference(state->policy); in security_fs_use()
2975 policydb = &policy->policydb; in security_fs_use()
2976 sidtab = policy->sidtab; in security_fs_use()
2978 c = policydb->ocontexts[OCON_FSUSE]; in security_fs_use()
2980 if (strcmp(fstype, c->u.name) == 0) in security_fs_use()
2982 c = c->next; in security_fs_use()
2986 sbsec->behavior = c->v.behavior; in security_fs_use()
2987 rc = ocontext_to_sid(sidtab, c, 0, &sbsec->sid); in security_fs_use()
2988 if (rc == -ESTALE) { in security_fs_use()
2992 if (rc) in security_fs_use()
2995 rc = __security_genfs_sid(policy, fstype, "/", in security_fs_use()
2996 SECCLASS_DIR, &sbsec->sid); in security_fs_use()
2997 if (rc == -ESTALE) { in security_fs_use()
3001 if (rc) { in security_fs_use()
3002 sbsec->behavior = SECURITY_FS_USE_NONE; in security_fs_use()
3003 rc = 0; in security_fs_use()
3005 sbsec->behavior = SECURITY_FS_USE_GENFS; in security_fs_use()
3011 return rc; in security_fs_use()
3019 int rc; in security_get_bools() local
3021 policydb = &policy->policydb; in security_get_bools()
3026 rc = 0; in security_get_bools()
3027 *len = policydb->p_bools.nprim; in security_get_bools()
3031 rc = -ENOMEM; in security_get_bools()
3036 rc = -ENOMEM; in security_get_bools()
3042 (*values)[i] = policydb->bool_val_to_struct[i]->state; in security_get_bools()
3044 rc = -ENOMEM; in security_get_bools()
3050 rc = 0; in security_get_bools()
3052 return rc; in security_get_bools()
3070 int rc; in security_set_bools() local
3074 return -EINVAL; in security_set_bools()
3076 oldpolicy = rcu_dereference_protected(state->policy, in security_set_bools()
3077 lockdep_is_held(&state->policy_mutex)); in security_set_bools()
3080 if (WARN_ON(len != oldpolicy->policydb.p_bools.nprim)) in security_set_bools()
3081 return -EINVAL; in security_set_bools()
3085 return -ENOMEM; in security_set_bools()
3091 rc = cond_policydb_dup(&newpolicy->policydb, &oldpolicy->policydb); in security_set_bools()
3092 if (rc) { in security_set_bools()
3094 return -ENOMEM; in security_set_bools()
3100 int old_state = newpolicy->policydb.bool_val_to_struct[i]->state; in security_set_bools()
3106 sym_name(&newpolicy->policydb, SYM_BOOLS, i), in security_set_bools()
3111 newpolicy->policydb.bool_val_to_struct[i]->state = new_state; in security_set_bools()
3115 /* Re-evaluate the conditional rules in the copy */ in security_set_bools()
3116 evaluate_cond_nodes(&newpolicy->policydb); in security_set_bools()
3119 newpolicy->latest_granting = oldpolicy->latest_granting + 1; in security_set_bools()
3120 seqno = newpolicy->latest_granting; in security_set_bools()
3123 rcu_assign_pointer(state->policy, newpolicy); in security_set_bools()
3143 int rc; in security_get_bool_value() local
3150 policy = rcu_dereference(state->policy); in security_get_bool_value()
3151 policydb = &policy->policydb; in security_get_bool_value()
3153 rc = -EFAULT; in security_get_bool_value()
3154 len = policydb->p_bools.nprim; in security_get_bool_value()
3158 rc = policydb->bool_val_to_struct[index]->state; in security_get_bool_value()
3161 return rc; in security_get_bool_value()
3167 int rc, *bvalues = NULL; in security_preserve_bools() local
3172 rc = security_get_bools(oldpolicy, &nbools, &bnames, &bvalues); in security_preserve_bools()
3173 if (rc) in security_preserve_bools()
3176 booldatum = symtab_search(&newpolicy->policydb.p_bools, in security_preserve_bools()
3179 booldatum->state = bvalues[i]; in security_preserve_bools()
3181 evaluate_cond_nodes(&newpolicy->policydb); in security_preserve_bools()
3190 return rc; in security_preserve_bools()
3194 * security_sid_mls_copy() - computes a new sid based on the given
3208 int rc; in security_sid_mls_copy() local
3216 rc = 0; in security_sid_mls_copy()
3220 policy = rcu_dereference(state->policy); in security_sid_mls_copy()
3221 policydb = &policy->policydb; in security_sid_mls_copy()
3222 sidtab = policy->sidtab; in security_sid_mls_copy()
3224 if (!policydb->mls_enabled) { in security_sid_mls_copy()
3229 rc = -EINVAL; in security_sid_mls_copy()
3237 rc = -EINVAL; in security_sid_mls_copy()
3245 newcon.user = context1->user; in security_sid_mls_copy()
3246 newcon.role = context1->role; in security_sid_mls_copy()
3247 newcon.type = context1->type; in security_sid_mls_copy()
3248 rc = mls_context_cpy(&newcon, context2); in security_sid_mls_copy()
3249 if (rc) in security_sid_mls_copy()
3254 rc = convert_context_handle_invalid_context(state, policydb, in security_sid_mls_copy()
3256 if (rc) { in security_sid_mls_copy()
3267 audit_log_n_untrustedstring(ab, s, len - 1); in security_sid_mls_copy()
3274 rc = sidtab_context_to_sid(sidtab, &newcon, new_sid); in security_sid_mls_copy()
3275 if (rc == -ESTALE) { in security_sid_mls_copy()
3283 return rc; in security_sid_mls_copy()
3287 * security_net_peersid_resolve - Compare and resolve two network peer SIDs
3299 * ------------------------------+-----------------+-----------------
3303 * multiple, inconsistent labels | -<errno> | SECSID_NULL
3314 int rc; in security_net_peersid_resolve() local
3339 policy = rcu_dereference(state->policy); in security_net_peersid_resolve()
3340 policydb = &policy->policydb; in security_net_peersid_resolve()
3341 sidtab = policy->sidtab; in security_net_peersid_resolve()
3346 * security server was initialized and state->initialized was true. in security_net_peersid_resolve()
3348 if (!policydb->mls_enabled) { in security_net_peersid_resolve()
3349 rc = 0; in security_net_peersid_resolve()
3353 rc = -EINVAL; in security_net_peersid_resolve()
3360 rc = -EINVAL; in security_net_peersid_resolve()
3367 rc = (mls_context_cmp(nlbl_ctx, xfrm_ctx) ? 0 : -EACCES); in security_net_peersid_resolve()
3368 if (rc) in security_net_peersid_resolve()
3379 return rc; in security_net_peersid_resolve()
3385 char *name = k, **classes = args; in get_classes_callback() local
3386 int value = datum->value - 1; in get_classes_callback()
3388 classes[value] = kstrdup(name, GFP_ATOMIC); in get_classes_callback()
3390 return -ENOMEM; in get_classes_callback()
3399 int rc; in security_get_classes() local
3401 policydb = &policy->policydb; in security_get_classes()
3403 rc = -ENOMEM; in security_get_classes()
3404 *nclasses = policydb->p_classes.nprim; in security_get_classes()
3409 rc = hashtab_map(&policydb->p_classes.table, get_classes_callback, in security_get_classes()
3411 if (rc) { in security_get_classes()
3419 return rc; in security_get_classes()
3425 char *name = k, **perms = args; in get_permissions_callback() local
3426 int value = datum->value - 1; in get_permissions_callback()
3428 perms[value] = kstrdup(name, GFP_ATOMIC); in get_permissions_callback()
3430 return -ENOMEM; in get_permissions_callback()
3439 int rc, i; in security_get_permissions() local
3442 policydb = &policy->policydb; in security_get_permissions()
3444 rc = -EINVAL; in security_get_permissions()
3445 match = symtab_search(&policydb->p_classes, class); in security_get_permissions()
3452 rc = -ENOMEM; in security_get_permissions()
3453 *nperms = match->permissions.nprim; in security_get_permissions()
3458 if (match->comdatum) { in security_get_permissions()
3459 rc = hashtab_map(&match->comdatum->permissions.table, in security_get_permissions()
3461 if (rc) in security_get_permissions()
3465 rc = hashtab_map(&match->permissions.table, get_permissions_callback, in security_get_permissions()
3467 if (rc) in security_get_permissions()
3471 return rc; in security_get_permissions()
3477 return rc; in security_get_permissions()
3489 policy = rcu_dereference(state->policy); in security_get_reject_unknown()
3490 value = policy->policydb.reject_unknown; in security_get_reject_unknown()
3504 policy = rcu_dereference(state->policy); in security_get_allow_unknown()
3505 value = policy->policydb.allow_unknown; in security_get_allow_unknown()
3511 * security_policycap_supported - Check for a specific policy capability
3524 int rc; in security_policycap_supported() local
3530 policy = rcu_dereference(state->policy); in security_policycap_supported()
3531 rc = ebitmap_get_bit(&policy->policydb.policycaps, req_cap); in security_policycap_supported()
3534 return rc; in security_policycap_supported()
3547 context_destroy(&rule->au_ctxt); in selinux_audit_rule_free()
3562 int rc = 0; in selinux_audit_rule_init() local
3567 return -EOPNOTSUPP; in selinux_audit_rule_init()
3578 return -EINVAL; in selinux_audit_rule_init()
3584 /* we do not allow a range, indicated by the presence of '-' */ in selinux_audit_rule_init()
3585 if (strchr(rulestr, '-')) in selinux_audit_rule_init()
3586 return -EINVAL; in selinux_audit_rule_init()
3590 return -EINVAL; in selinux_audit_rule_init()
3595 return -ENOMEM; in selinux_audit_rule_init()
3597 context_init(&tmprule->au_ctxt); in selinux_audit_rule_init()
3600 policy = rcu_dereference(state->policy); in selinux_audit_rule_init()
3601 policydb = &policy->policydb; in selinux_audit_rule_init()
3603 tmprule->au_seqno = policy->latest_granting; in selinux_audit_rule_init()
3608 rc = -EINVAL; in selinux_audit_rule_init()
3609 userdatum = symtab_search(&policydb->p_users, rulestr); in selinux_audit_rule_init()
3612 tmprule->au_ctxt.user = userdatum->value; in selinux_audit_rule_init()
3616 rc = -EINVAL; in selinux_audit_rule_init()
3617 roledatum = symtab_search(&policydb->p_roles, rulestr); in selinux_audit_rule_init()
3620 tmprule->au_ctxt.role = roledatum->value; in selinux_audit_rule_init()
3624 rc = -EINVAL; in selinux_audit_rule_init()
3625 typedatum = symtab_search(&policydb->p_types, rulestr); in selinux_audit_rule_init()
3628 tmprule->au_ctxt.type = typedatum->value; in selinux_audit_rule_init()
3634 rc = mls_from_string(policydb, rulestr, &tmprule->au_ctxt, in selinux_audit_rule_init()
3636 if (rc) in selinux_audit_rule_init()
3640 rc = 0; in selinux_audit_rule_init()
3644 if (rc) { in selinux_audit_rule_init()
3651 return rc; in selinux_audit_rule_init()
3659 for (i = 0; i < rule->field_count; i++) { in selinux_audit_rule_known()
3660 struct audit_field *f = &rule->fields[i]; in selinux_audit_rule_known()
3661 switch (f->type) { in selinux_audit_rule_known()
3690 return -ENOENT; in selinux_audit_rule_match()
3698 policy = rcu_dereference(state->policy); in selinux_audit_rule_match()
3700 if (rule->au_seqno < policy->latest_granting) { in selinux_audit_rule_match()
3701 match = -ESTALE; in selinux_audit_rule_match()
3705 ctxt = sidtab_search(policy->sidtab, sid); in selinux_audit_rule_match()
3709 match = -ENOENT; in selinux_audit_rule_match()
3720 match = (ctxt->user == rule->au_ctxt.user); in selinux_audit_rule_match()
3723 match = (ctxt->user != rule->au_ctxt.user); in selinux_audit_rule_match()
3731 match = (ctxt->role == rule->au_ctxt.role); in selinux_audit_rule_match()
3734 match = (ctxt->role != rule->au_ctxt.role); in selinux_audit_rule_match()
3742 match = (ctxt->type == rule->au_ctxt.type); in selinux_audit_rule_match()
3745 match = (ctxt->type != rule->au_ctxt.type); in selinux_audit_rule_match()
3755 &ctxt->range.level[0] : &ctxt->range.level[1]); in selinux_audit_rule_match()
3758 match = mls_level_eq(&rule->au_ctxt.range.level[0], in selinux_audit_rule_match()
3762 match = !mls_level_eq(&rule->au_ctxt.range.level[0], in selinux_audit_rule_match()
3766 match = (mls_level_dom(&rule->au_ctxt.range.level[0], in selinux_audit_rule_match()
3768 !mls_level_eq(&rule->au_ctxt.range.level[0], in selinux_audit_rule_match()
3772 match = mls_level_dom(&rule->au_ctxt.range.level[0], in selinux_audit_rule_match()
3777 &rule->au_ctxt.range.level[0]) && in selinux_audit_rule_match()
3779 &rule->au_ctxt.range.level[0])); in selinux_audit_rule_match()
3783 &rule->au_ctxt.range.level[0]); in selinux_audit_rule_match()
3818 * security_netlbl_cache_add - Add an entry to the NetLabel cache
3836 secattr->cache = netlbl_secattr_cache_alloc(GFP_ATOMIC); in security_netlbl_cache_add()
3837 if (secattr->cache == NULL) { in security_netlbl_cache_add()
3843 secattr->cache->free = kfree; in security_netlbl_cache_add()
3844 secattr->cache->data = sid_cache; in security_netlbl_cache_add()
3845 secattr->flags |= NETLBL_SECATTR_CACHE; in security_netlbl_cache_add()
3849 * security_netlbl_secattr_to_sid - Convert a NetLabel secattr to a SELinux SID
3870 int rc; in security_netlbl_secattr_to_sid() local
3880 rc = 0; in security_netlbl_secattr_to_sid()
3882 policy = rcu_dereference(state->policy); in security_netlbl_secattr_to_sid()
3883 policydb = &policy->policydb; in security_netlbl_secattr_to_sid()
3884 sidtab = policy->sidtab; in security_netlbl_secattr_to_sid()
3886 if (secattr->flags & NETLBL_SECATTR_CACHE) in security_netlbl_secattr_to_sid()
3887 *sid = *(u32 *)secattr->cache->data; in security_netlbl_secattr_to_sid()
3888 else if (secattr->flags & NETLBL_SECATTR_SECID) in security_netlbl_secattr_to_sid()
3889 *sid = secattr->attr.secid; in security_netlbl_secattr_to_sid()
3890 else if (secattr->flags & NETLBL_SECATTR_MLS_LVL) { in security_netlbl_secattr_to_sid()
3891 rc = -EIDRM; in security_netlbl_secattr_to_sid()
3897 ctx_new.user = ctx->user; in security_netlbl_secattr_to_sid()
3898 ctx_new.role = ctx->role; in security_netlbl_secattr_to_sid()
3899 ctx_new.type = ctx->type; in security_netlbl_secattr_to_sid()
3901 if (secattr->flags & NETLBL_SECATTR_MLS_CAT) { in security_netlbl_secattr_to_sid()
3902 rc = mls_import_netlbl_cat(policydb, &ctx_new, secattr); in security_netlbl_secattr_to_sid()
3903 if (rc) in security_netlbl_secattr_to_sid()
3906 rc = -EIDRM; in security_netlbl_secattr_to_sid()
3912 rc = sidtab_context_to_sid(sidtab, &ctx_new, sid); in security_netlbl_secattr_to_sid()
3914 if (rc == -ESTALE) { in security_netlbl_secattr_to_sid()
3918 if (rc) in security_netlbl_secattr_to_sid()
3927 return rc; in security_netlbl_secattr_to_sid()
3931 * security_netlbl_sid_to_secattr - Convert a SELinux SID to a NetLabel secattr
3945 int rc; in security_netlbl_sid_to_secattr() local
3952 policy = rcu_dereference(state->policy); in security_netlbl_sid_to_secattr()
3953 policydb = &policy->policydb; in security_netlbl_sid_to_secattr()
3955 rc = -ENOENT; in security_netlbl_sid_to_secattr()
3956 ctx = sidtab_search(policy->sidtab, sid); in security_netlbl_sid_to_secattr()
3960 rc = -ENOMEM; in security_netlbl_sid_to_secattr()
3961 secattr->domain = kstrdup(sym_name(policydb, SYM_TYPES, ctx->type - 1), in security_netlbl_sid_to_secattr()
3963 if (secattr->domain == NULL) in security_netlbl_sid_to_secattr()
3966 secattr->attr.secid = sid; in security_netlbl_sid_to_secattr()
3967 secattr->flags |= NETLBL_SECATTR_DOMAIN_CPY | NETLBL_SECATTR_SECID; in security_netlbl_sid_to_secattr()
3969 rc = mls_export_netlbl_cat(policydb, ctx, secattr); in security_netlbl_sid_to_secattr()
3972 return rc; in security_netlbl_sid_to_secattr()
3977 * security_read_policy - read the policy.
3986 int rc; in security_read_policy() local
3990 state->policy, lockdep_is_held(&state->policy_mutex)); in security_read_policy()
3992 return -EINVAL; in security_read_policy()
3994 *len = policy->policydb.len; in security_read_policy()
3997 return -ENOMEM; in security_read_policy()
4002 rc = policydb_write(&policy->policydb, &fp); in security_read_policy()
4003 if (rc) in security_read_policy()
4004 return rc; in security_read_policy()
4006 *len = (unsigned long)fp.data - (unsigned long)*data; in security_read_policy()