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
97 const struct security_class_mapping *map, in selinux_set_mapping() argument
104 if (!map) in selinux_set_mapping()
105 return -EINVAL; in selinux_set_mapping()
107 while (map[i].name) in selinux_set_mapping()
111 out_map->mapping = kcalloc(++i, sizeof(*out_map->mapping), GFP_ATOMIC); in selinux_set_mapping()
112 if (!out_map->mapping) in selinux_set_mapping()
113 return -ENOMEM; in selinux_set_mapping()
117 while (map[j].name) { in selinux_set_mapping()
118 const struct security_class_mapping *p_in = map + (j++); in selinux_set_mapping()
119 struct selinux_mapping *p_out = out_map->mapping + j; in selinux_set_mapping()
123 if (!strcmp(p_in->name, "")) { in selinux_set_mapping()
124 p_out->num_perms = 0; in selinux_set_mapping()
128 p_out->value = string_to_security_class(pol, p_in->name); in selinux_set_mapping()
129 if (!p_out->value) { in selinux_set_mapping()
131 p_in->name); in selinux_set_mapping()
132 if (pol->reject_unknown) in selinux_set_mapping()
134 p_out->num_perms = 0; in selinux_set_mapping()
140 while (p_in->perms[k]) { in selinux_set_mapping()
142 if (!*p_in->perms[k]) { in selinux_set_mapping()
146 p_out->perms[k] = string_to_av_perm(pol, p_out->value, in selinux_set_mapping()
147 p_in->perms[k]); in selinux_set_mapping()
148 if (!p_out->perms[k]) { in selinux_set_mapping()
150 p_in->perms[k], p_in->name); in selinux_set_mapping()
151 if (pol->reject_unknown) in selinux_set_mapping()
158 p_out->num_perms = k; in selinux_set_mapping()
163 pol->allow_unknown ? "allowed" : "denied"); in selinux_set_mapping()
165 out_map->size = i; in selinux_set_mapping()
168 kfree(out_map->mapping); in selinux_set_mapping()
169 out_map->mapping = NULL; in selinux_set_mapping()
170 return -EINVAL; in selinux_set_mapping()
177 static u16 unmap_class(struct selinux_map *map, u16 tclass) in unmap_class() argument
179 if (tclass < map->size) in unmap_class()
180 return map->mapping[tclass].value; in unmap_class()
188 static u16 map_class(struct selinux_map *map, u16 pol_value) in map_class() argument
192 for (i = 1; i < map->size; i++) { in map_class()
193 if (map->mapping[i].value == pol_value) in map_class()
200 static void map_decision(struct selinux_map *map, in map_decision() argument
204 if (tclass < map->size) { in map_decision()
205 struct selinux_mapping *mapping = &map->mapping[tclass]; in map_decision()
206 unsigned int i, n = mapping->num_perms; in map_decision()
210 if (avd->allowed & mapping->perms[i]) in map_decision()
212 if (allow_unknown && !mapping->perms[i]) in map_decision()
215 avd->allowed = result; in map_decision()
218 if (avd->auditallow & mapping->perms[i]) in map_decision()
220 avd->auditallow = result; in map_decision()
223 if (avd->auditdeny & mapping->perms[i]) in map_decision()
225 if (!allow_unknown && !mapping->perms[i]) in map_decision()
235 avd->auditdeny = result; in map_decision()
249 mls_enabled = policy->policydb.mls_enabled; in security_mls_enabled()
277 int sp = -1; in constraint_expr_eval()
279 for (e = cexpr; e; e = e->next) { in constraint_expr_eval()
280 switch (e->expr_type) { in constraint_expr_eval()
287 sp--; in constraint_expr_eval()
292 sp--; in constraint_expr_eval()
296 if (sp == (CEXPR_MAXDEPTH - 1)) in constraint_expr_eval()
298 switch (e->attr) { in constraint_expr_eval()
300 val1 = scontext->user; in constraint_expr_eval()
301 val2 = tcontext->user; in constraint_expr_eval()
304 val1 = scontext->type; in constraint_expr_eval()
305 val2 = tcontext->type; in constraint_expr_eval()
308 val1 = scontext->role; in constraint_expr_eval()
309 val2 = tcontext->role; in constraint_expr_eval()
310 r1 = policydb->role_val_to_struct[val1 - 1]; in constraint_expr_eval()
311 r2 = policydb->role_val_to_struct[val2 - 1]; in constraint_expr_eval()
312 switch (e->op) { in constraint_expr_eval()
314 s[++sp] = ebitmap_get_bit(&r1->dominates, in constraint_expr_eval()
315 val2 - 1); in constraint_expr_eval()
318 s[++sp] = ebitmap_get_bit(&r2->dominates, in constraint_expr_eval()
319 val1 - 1); in constraint_expr_eval()
322 s[++sp] = (!ebitmap_get_bit(&r1->dominates, in constraint_expr_eval()
323 val2 - 1) && in constraint_expr_eval()
324 !ebitmap_get_bit(&r2->dominates, in constraint_expr_eval()
325 val1 - 1)); in constraint_expr_eval()
332 l1 = &(scontext->range.level[0]); in constraint_expr_eval()
333 l2 = &(tcontext->range.level[0]); in constraint_expr_eval()
336 l1 = &(scontext->range.level[0]); in constraint_expr_eval()
337 l2 = &(tcontext->range.level[1]); in constraint_expr_eval()
340 l1 = &(scontext->range.level[1]); in constraint_expr_eval()
341 l2 = &(tcontext->range.level[0]); in constraint_expr_eval()
344 l1 = &(scontext->range.level[1]); in constraint_expr_eval()
345 l2 = &(tcontext->range.level[1]); in constraint_expr_eval()
348 l1 = &(scontext->range.level[0]); in constraint_expr_eval()
349 l2 = &(scontext->range.level[1]); in constraint_expr_eval()
352 l1 = &(tcontext->range.level[0]); in constraint_expr_eval()
353 l2 = &(tcontext->range.level[1]); in constraint_expr_eval()
356 switch (e->op) { in constraint_expr_eval()
382 switch (e->op) { in constraint_expr_eval()
395 if (sp == (CEXPR_MAXDEPTH-1)) in constraint_expr_eval()
398 if (e->attr & CEXPR_TARGET) in constraint_expr_eval()
400 else if (e->attr & CEXPR_XTARGET) { in constraint_expr_eval()
407 if (e->attr & CEXPR_USER) in constraint_expr_eval()
408 val1 = c->user; in constraint_expr_eval()
409 else if (e->attr & CEXPR_ROLE) in constraint_expr_eval()
410 val1 = c->role; in constraint_expr_eval()
411 else if (e->attr & CEXPR_TYPE) in constraint_expr_eval()
412 val1 = c->type; in constraint_expr_eval()
418 switch (e->op) { in constraint_expr_eval()
420 s[++sp] = ebitmap_get_bit(&e->names, val1 - 1); in constraint_expr_eval()
423 s[++sp] = !ebitmap_get_bit(&e->names, val1 - 1); in constraint_expr_eval()
441 * security_dump_masked_av - dumps masked permissions during
449 BUG_ON(pdatum->value < 1 || pdatum->value > 32); in dump_masked_av_helper()
451 permission_names[pdatum->value - 1] = (char *)k; in dump_masked_av_helper()
477 tclass_name = sym_name(policydb, SYM_CLASSES, tclass - 1); in security_dump_masked_av()
478 tclass_dat = policydb->class_val_to_struct[tclass - 1]; in security_dump_masked_av()
479 common_dat = tclass_dat->comdatum; in security_dump_masked_av()
483 hashtab_map(&common_dat->permissions.table, in security_dump_masked_av()
487 if (hashtab_map(&tclass_dat->permissions.table, in security_dump_masked_av()
530 * security_boundary_permission - drops violated permissions
546 source = policydb->type_val_to_struct[scontext->type - 1]; in type_attribute_bounds_av()
549 if (!source->bounds) in type_attribute_bounds_av()
552 target = policydb->type_val_to_struct[tcontext->type - 1]; in type_attribute_bounds_av()
558 lo_scontext.type = source->bounds; in type_attribute_bounds_av()
560 if (target->bounds) { in type_attribute_bounds_av()
562 lo_tcontext.type = target->bounds; in type_attribute_bounds_av()
572 masked = ~lo_avd.allowed & avd->allowed; in type_attribute_bounds_av()
578 avd->allowed &= ~masked; in type_attribute_bounds_av()
594 switch (node->datum.u.xperms->specified) { in services_compute_xperms_drivers()
596 xperms->base_perms |= AVC_EXT_IOCTL; in services_compute_xperms_drivers()
598 for (i = 0; i < ARRAY_SIZE(xperms->drivers.p); i++) in services_compute_xperms_drivers()
599 xperms->drivers.p[i] |= node->datum.u.xperms->perms.p[i]; in services_compute_xperms_drivers()
602 xperms->base_perms |= AVC_EXT_IOCTL; in services_compute_xperms_drivers()
604 security_xperm_set(xperms->drivers.p, in services_compute_xperms_drivers()
605 node->datum.u.xperms->driver); in services_compute_xperms_drivers()
608 xperms->base_perms |= AVC_EXT_NLMSG; in services_compute_xperms_drivers()
610 security_xperm_set(xperms->drivers.p, in services_compute_xperms_drivers()
611 node->datum.u.xperms->driver); in services_compute_xperms_drivers()
615 xperms->len = 1; in services_compute_xperms_drivers()
638 avd->allowed = 0; in context_struct_compute_av()
639 avd->auditallow = 0; in context_struct_compute_av()
640 avd->auditdeny = 0xffffffff; in context_struct_compute_av()
645 if (unlikely(!tclass || tclass > policydb->p_classes.nprim)) { in context_struct_compute_av()
650 tclass_datum = policydb->class_val_to_struct[tclass - 1]; in context_struct_compute_av()
658 sattr = &policydb->type_attr_map_array[scontext->type - 1]; in context_struct_compute_av()
659 tattr = &policydb->type_attr_map_array[tcontext->type - 1]; in context_struct_compute_av()
664 for (node = avtab_search_node(&policydb->te_avtab, in context_struct_compute_av()
668 if (node->key.specified == AVTAB_ALLOWED) in context_struct_compute_av()
669 avd->allowed |= node->datum.u.data; in context_struct_compute_av()
670 else if (node->key.specified == AVTAB_AUDITALLOW) in context_struct_compute_av()
671 avd->auditallow |= node->datum.u.data; in context_struct_compute_av()
672 else if (node->key.specified == AVTAB_AUDITDENY) in context_struct_compute_av()
673 avd->auditdeny &= node->datum.u.data; in context_struct_compute_av()
674 else if (xperms && (node->key.specified & AVTAB_XPERMS)) in context_struct_compute_av()
679 cond_compute_av(&policydb->te_cond_avtab, &avkey, in context_struct_compute_av()
689 constraint = tclass_datum->constraints; in context_struct_compute_av()
691 if ((constraint->permissions & (avd->allowed)) && in context_struct_compute_av()
693 constraint->expr)) { in context_struct_compute_av()
694 avd->allowed &= ~(constraint->permissions); in context_struct_compute_av()
696 constraint = constraint->next; in context_struct_compute_av()
704 if (tclass == policydb->process_class && in context_struct_compute_av()
705 (avd->allowed & policydb->process_trans_perms) && in context_struct_compute_av()
706 scontext->role != tcontext->role) { in context_struct_compute_av()
707 for (ra = policydb->role_allow; ra; ra = ra->next) { in context_struct_compute_av()
708 if (scontext->role == ra->role && in context_struct_compute_av()
709 tcontext->role == ra->new_role) in context_struct_compute_av()
713 avd->allowed &= ~policydb->process_trans_perms; in context_struct_compute_av()
731 struct policydb *p = &policy->policydb; in security_validtrans_handle_fail()
732 struct sidtab *sidtab = policy->sidtab; in security_validtrans_handle_fail()
745 o, n, t, sym_name(p, SYM_CLASSES, tclass-1)); in security_validtrans_handle_fail()
753 return -EPERM; in security_validtrans_handle_fail()
768 int rc = 0; in security_compute_validatetrans() local
777 policydb = &policy->policydb; in security_compute_validatetrans()
778 sidtab = policy->sidtab; in security_compute_validatetrans()
781 tclass = unmap_class(&policy->map, orig_tclass); in security_compute_validatetrans()
785 if (!tclass || tclass > policydb->p_classes.nprim) { in security_compute_validatetrans()
786 rc = -EINVAL; in security_compute_validatetrans()
789 tclass_datum = policydb->class_val_to_struct[tclass - 1]; in security_compute_validatetrans()
795 rc = -EINVAL; in security_compute_validatetrans()
803 rc = -EINVAL; in security_compute_validatetrans()
811 rc = -EINVAL; in security_compute_validatetrans()
815 constraint = tclass_datum->validatetrans; in security_compute_validatetrans()
817 if (!constraint_expr_eval(policydb, &oentry->context, in security_compute_validatetrans()
818 &nentry->context, &tentry->context, in security_compute_validatetrans()
819 constraint->expr)) { in security_compute_validatetrans()
821 rc = -EPERM; in security_compute_validatetrans()
823 rc = security_validtrans_handle_fail(policy, in security_compute_validatetrans()
830 constraint = constraint->next; in security_compute_validatetrans()
835 return rc; in security_compute_validatetrans()
853 * security_bounded_transition - check whether the given
869 int rc; in security_bounded_transition() local
876 policydb = &policy->policydb; in security_bounded_transition()
877 sidtab = policy->sidtab; in security_bounded_transition()
879 rc = -EINVAL; in security_bounded_transition()
887 rc = -EINVAL; in security_bounded_transition()
895 rc = 0; in security_bounded_transition()
897 if (old_entry->context.type == new_entry->context.type) in security_bounded_transition()
900 index = new_entry->context.type; in security_bounded_transition()
902 type = policydb->type_val_to_struct[index - 1]; in security_bounded_transition()
906 rc = -EPERM; in security_bounded_transition()
907 if (!type->bounds) in security_bounded_transition()
911 rc = 0; in security_bounded_transition()
912 if (type->bounds == old_entry->context.type) in security_bounded_transition()
915 index = type->bounds; in security_bounded_transition()
918 if (rc) { in security_bounded_transition()
940 return rc; in security_bounded_transition()
945 avd->allowed = 0; in avd_init()
946 avd->auditallow = 0; in avd_init()
947 avd->auditdeny = 0xffffffff; in avd_init()
949 avd->seqno = policy->latest_granting; in avd_init()
951 avd->seqno = 0; in avd_init()
952 avd->flags = 0; in avd_init()
963 memset(xp_data->p, 0xff, sizeof(xp_data->p)); in update_xperms_extended_data()
967 for (i = 0; i < ARRAY_SIZE(xp_data->p); i++) in update_xperms_extended_data()
968 xp_data->p[i] |= from->p[i]; in update_xperms_extended_data()
979 switch (node->datum.u.xperms->specified) { in services_compute_xperms_decision()
981 if (xpermd->base_perm != AVC_EXT_IOCTL || in services_compute_xperms_decision()
982 xpermd->driver != node->datum.u.xperms->driver) in services_compute_xperms_decision()
986 if (xpermd->base_perm != AVC_EXT_IOCTL || in services_compute_xperms_decision()
987 !security_xperm_test(node->datum.u.xperms->perms.p, in services_compute_xperms_decision()
988 xpermd->driver)) in services_compute_xperms_decision()
992 if (xpermd->base_perm != AVC_EXT_NLMSG || in services_compute_xperms_decision()
993 xpermd->driver != node->datum.u.xperms->driver) in services_compute_xperms_decision()
999 node->datum.u.xperms->specified); in services_compute_xperms_decision()
1003 specified = node->key.specified & ~(AVTAB_ENABLED | AVTAB_ENABLED_OLD); in services_compute_xperms_decision()
1006 xpermd->used |= XPERMS_ALLOWED; in services_compute_xperms_decision()
1007 update_xperms_extended_data(node->datum.u.xperms->specified, in services_compute_xperms_decision()
1008 &node->datum.u.xperms->perms, in services_compute_xperms_decision()
1009 xpermd->allowed); in services_compute_xperms_decision()
1011 xpermd->used |= XPERMS_AUDITALLOW; in services_compute_xperms_decision()
1012 update_xperms_extended_data(node->datum.u.xperms->specified, in services_compute_xperms_decision()
1013 &node->datum.u.xperms->perms, in services_compute_xperms_decision()
1014 xpermd->auditallow); in services_compute_xperms_decision()
1016 xpermd->used |= XPERMS_DONTAUDIT; in services_compute_xperms_decision()
1017 update_xperms_extended_data(node->datum.u.xperms->specified, in services_compute_xperms_decision()
1018 &node->datum.u.xperms->perms, in services_compute_xperms_decision()
1019 xpermd->dontaudit); in services_compute_xperms_decision()
1022 node->key.specified); in services_compute_xperms_decision()
1044 xpermd->base_perm = base_perm; in security_compute_xperms_decision()
1045 xpermd->driver = driver; in security_compute_xperms_decision()
1046 xpermd->used = 0; in security_compute_xperms_decision()
1047 memset(xpermd->allowed->p, 0, sizeof(xpermd->allowed->p)); in security_compute_xperms_decision()
1048 memset(xpermd->auditallow->p, 0, sizeof(xpermd->auditallow->p)); in security_compute_xperms_decision()
1049 memset(xpermd->dontaudit->p, 0, sizeof(xpermd->dontaudit->p)); in security_compute_xperms_decision()
1056 policydb = &policy->policydb; in security_compute_xperms_decision()
1057 sidtab = policy->sidtab; in security_compute_xperms_decision()
1073 tclass = unmap_class(&policy->map, orig_tclass); in security_compute_xperms_decision()
1075 if (policydb->allow_unknown) in security_compute_xperms_decision()
1081 if (unlikely(!tclass || tclass > policydb->p_classes.nprim)) { in security_compute_xperms_decision()
1088 sattr = &policydb->type_attr_map_array[scontext->type - 1]; in security_compute_xperms_decision()
1089 tattr = &policydb->type_attr_map_array[tcontext->type - 1]; in security_compute_xperms_decision()
1094 for (node = avtab_search_node(&policydb->te_avtab, in security_compute_xperms_decision()
1100 cond_compute_xperms(&policydb->te_cond_avtab, in security_compute_xperms_decision()
1108 memset(xpermd->allowed->p, 0xff, sizeof(xpermd->allowed->p)); in security_compute_xperms_decision()
1113 * security_compute_av - Compute access vector decisions.
1138 xperms->len = 0; in security_compute_av()
1142 policydb = &policy->policydb; in security_compute_av()
1143 sidtab = policy->sidtab; in security_compute_av()
1153 if (ebitmap_get_bit(&policydb->permissive_map, scontext->type)) in security_compute_av()
1154 avd->flags |= AVD_FLAGS_PERMISSIVE; in security_compute_av()
1163 tclass = unmap_class(&policy->map, orig_tclass); in security_compute_av()
1165 if (policydb->allow_unknown) in security_compute_av()
1171 map_decision(&policy->map, orig_tclass, avd, in security_compute_av()
1172 policydb->allow_unknown); in security_compute_av()
1177 avd->allowed = 0xffffffff; in security_compute_av()
1197 policydb = &policy->policydb; in security_compute_av_user()
1198 sidtab = policy->sidtab; in security_compute_av_user()
1208 if (ebitmap_get_bit(&policydb->permissive_map, scontext->type)) in security_compute_av_user()
1209 avd->flags |= AVD_FLAGS_PERMISSIVE; in security_compute_av_user()
1219 if (policydb->allow_unknown) in security_compute_av_user()
1230 avd->allowed = 0xffffffff; in security_compute_av_user()
1251 if (context->len) { in context_struct_to_string()
1252 *scontext_len = context->len; in context_struct_to_string()
1254 *scontext = kstrdup(context->str, GFP_ATOMIC); in context_struct_to_string()
1256 return -ENOMEM; in context_struct_to_string()
1262 *scontext_len += strlen(sym_name(p, SYM_USERS, context->user - 1)) + 1; in context_struct_to_string()
1263 *scontext_len += strlen(sym_name(p, SYM_ROLES, context->role - 1)) + 1; in context_struct_to_string()
1264 *scontext_len += strlen(sym_name(p, SYM_TYPES, context->type - 1)) + 1; in context_struct_to_string()
1273 return -ENOMEM; in context_struct_to_string()
1277 * Copy the user name, role name and type name into the context. in context_struct_to_string()
1280 sym_name(p, SYM_USERS, context->user - 1), in context_struct_to_string()
1281 sym_name(p, SYM_ROLES, context->role - 1), in context_struct_to_string()
1282 sym_name(p, SYM_TYPES, context->type - 1)); in context_struct_to_string()
1296 int rc = sidtab_sid2str_get(sidtab, entry, scontext, scontext_len); in sidtab_entry_to_string() local
1298 if (rc != -ENOENT) in sidtab_entry_to_string()
1299 return rc; in sidtab_entry_to_string()
1301 rc = context_struct_to_string(p, &entry->context, scontext, in sidtab_entry_to_string()
1303 if (!rc && scontext) in sidtab_entry_to_string()
1305 return rc; in sidtab_entry_to_string()
1313 int rc; in security_sidtab_hash_stats() local
1318 return -EINVAL; in security_sidtab_hash_stats()
1323 rc = sidtab_hash_stats(policy->sidtab, page); in security_sidtab_hash_stats()
1326 return rc; in security_sidtab_hash_stats()
1344 int rc = 0; in security_sid_to_context_core() local
1359 * both non-null and not "kernel" to mean that a policy in security_sid_to_context_core()
1367 return -EINVAL; in security_sid_to_context_core()
1373 return -ENOMEM; in security_sid_to_context_core()
1379 return -EINVAL; in security_sid_to_context_core()
1383 policydb = &policy->policydb; in security_sid_to_context_core()
1384 sidtab = policy->sidtab; in security_sid_to_context_core()
1393 rc = -EINVAL; in security_sid_to_context_core()
1396 if (only_invalid && !entry->context.len) in security_sid_to_context_core()
1399 rc = sidtab_entry_to_string(policydb, sidtab, entry, scontext, in security_sid_to_context_core()
1404 return rc; in security_sid_to_context_core()
1409 * security_sid_to_context - Obtain a context for a given SID.
1432 * security_sid_to_context_inval - Obtain a context for a given SID if it
1464 int rc = 0; in string_to_context_struct() local
1470 rc = -EINVAL; in string_to_context_struct()
1483 usrdatum = symtab_search(&pol->p_users, scontextp); in string_to_context_struct()
1487 ctx->user = usrdatum->value; in string_to_context_struct()
1499 role = symtab_search(&pol->p_roles, scontextp); in string_to_context_struct()
1502 ctx->role = role->value; in string_to_context_struct()
1511 typdatum = symtab_search(&pol->p_types, scontextp); in string_to_context_struct()
1512 if (!typdatum || typdatum->attribute) in string_to_context_struct()
1515 ctx->type = typdatum->value; in string_to_context_struct()
1517 rc = mls_context_to_sid(pol, oldc, p, ctx, sidtabp, def_sid); in string_to_context_struct()
1518 if (rc) in string_to_context_struct()
1522 rc = -EINVAL; in string_to_context_struct()
1525 rc = 0; in string_to_context_struct()
1527 if (rc) in string_to_context_struct()
1529 return rc; in string_to_context_struct()
1541 int rc = 0; in security_context_to_sid_core() local
1545 return -EINVAL; in security_context_to_sid_core()
1550 return -ENOMEM; in security_context_to_sid_core()
1570 rc = -ENOMEM; in security_context_to_sid_core()
1578 policydb = &policy->policydb; in security_context_to_sid_core()
1579 sidtab = policy->sidtab; in security_context_to_sid_core()
1580 rc = string_to_context_struct(policydb, sidtab, scontext2, in security_context_to_sid_core()
1582 if (rc == -EINVAL && force) { in security_context_to_sid_core()
1586 } else if (rc) in security_context_to_sid_core()
1588 rc = sidtab_context_to_sid(sidtab, &context, sid); in security_context_to_sid_core()
1589 if (rc == -ESTALE) { in security_context_to_sid_core()
1604 return rc; in security_context_to_sid_core()
1608 * security_context_to_sid - Obtain a SID for a given security context.
1616 * Returns -%EINVAL if the context is invalid, -%ENOMEM if insufficient
1633 * security_context_to_sid_default - Obtain a SID for a given security context,
1640 * @gfp_flags: the allocator get-free-page (GFP) flags
1648 * Returns -%EINVAL if the context is invalid, -%ENOMEM if insufficient
1672 struct policydb *policydb = &policy->policydb; in compute_sid_handle_invalid_context()
1673 struct sidtab *sidtab = policy->sidtab; in compute_sid_handle_invalid_context()
1690 audit_log_n_untrustedstring(ab, n, nlen - 1); in compute_sid_handle_invalid_context()
1692 s, t, sym_name(policydb, SYM_CLASSES, tclass-1)); in compute_sid_handle_invalid_context()
1700 return -EACCES; in compute_sid_handle_invalid_context()
1716 if (!ebitmap_get_bit(&policydb->filename_trans_ttypes, ttype)) in filename_compute_type()
1721 ft.name = objname; in filename_compute_type()
1725 if (ebitmap_get_bit(&datum->stypes, stype - 1)) { in filename_compute_type()
1726 newcontext->type = datum->otype; in filename_compute_type()
1729 datum = datum->next; in filename_compute_type()
1750 int rc = 0; in security_compute_sid() local
1774 tclass = unmap_class(&policy->map, orig_tclass); in security_compute_sid()
1778 sock = security_is_socket_class(map_class(&policy->map, in security_compute_sid()
1782 policydb = &policy->policydb; in security_compute_sid()
1783 sidtab = policy->sidtab; in security_compute_sid()
1789 rc = -EINVAL; in security_compute_sid()
1796 rc = -EINVAL; in security_compute_sid()
1800 scontext = &sentry->context; in security_compute_sid()
1801 tcontext = &tentry->context; in security_compute_sid()
1803 if (tclass && tclass <= policydb->p_classes.nprim) in security_compute_sid()
1804 cladatum = policydb->class_val_to_struct[tclass - 1]; in security_compute_sid()
1810 if (cladatum && cladatum->default_user == DEFAULT_TARGET) { in security_compute_sid()
1811 newcontext.user = tcontext->user; in security_compute_sid()
1815 newcontext.user = scontext->user; in security_compute_sid()
1820 newcontext.user = tcontext->user; in security_compute_sid()
1825 if (cladatum && cladatum->default_role == DEFAULT_SOURCE) { in security_compute_sid()
1826 newcontext.role = scontext->role; in security_compute_sid()
1827 } else if (cladatum && cladatum->default_role == DEFAULT_TARGET) { in security_compute_sid()
1828 newcontext.role = tcontext->role; in security_compute_sid()
1830 if ((tclass == policydb->process_class) || sock) in security_compute_sid()
1831 newcontext.role = scontext->role; 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 avnode = avtab_search_node(&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()
1861 newcontext.type = avnode->datum.u.data; in security_compute_sid()
1862 } else if (cladatum && cladatum->default_type == DEFAULT_SOURCE) { in security_compute_sid()
1863 newcontext.type = scontext->type; in security_compute_sid()
1864 } else if (cladatum && cladatum->default_type == DEFAULT_TARGET) { in security_compute_sid()
1865 newcontext.type = tcontext->type; in security_compute_sid()
1867 if ((tclass == policydb->process_class) || sock) { in security_compute_sid()
1869 newcontext.type = scontext->type; in security_compute_sid()
1872 newcontext.type = tcontext->type; in security_compute_sid()
1878 filename_compute_type(policydb, &newcontext, scontext->type, in security_compute_sid()
1879 tcontext->type, tclass, objname); in security_compute_sid()
1881 /* Check for class-specific changes. */ in security_compute_sid()
1886 .role = scontext->role, in security_compute_sid()
1887 .type = tcontext->type, in security_compute_sid()
1893 newcontext.role = rtd->new_role; in security_compute_sid()
1898 rc = mls_compute_sid(policydb, scontext, tcontext, tclass, specified, in security_compute_sid()
1900 if (rc) in security_compute_sid()
1905 rc = compute_sid_handle_invalid_context(policy, sentry, in security_compute_sid()
1908 if (rc) in security_compute_sid()
1912 rc = sidtab_context_to_sid(sidtab, &newcontext, out_sid); in security_compute_sid()
1913 if (rc == -ESTALE) { in security_compute_sid()
1922 return rc; in security_compute_sid()
1926 * security_transition_sid - Compute the SID for a new subject/object.
1930 * @qstr: object name
1935 * Return -%EINVAL if any of the parameters are invalid, -%ENOMEM
1944 qstr ? qstr->name : NULL, out_sid, true); in security_transition_sid()
1956 * security_member_sid - Compute the SID for member selection.
1964 * Return -%EINVAL if any of the parameters are invalid, -%ENOMEM
1979 * security_change_sid - Compute the SID for object relabeling.
1987 * Return -%EINVAL if any of the parameters are invalid, -%ENOMEM
2008 return -EINVAL; in convert_context_handle_invalid_context()
2019 * services_convert_context - Convert a security context across policies.
2026 * specified in the policy @args->oldp to the values specified in the policy
2027 * @args->newp, storing the new context in @newc, and verifying that the
2040 int rc; in services_convert_context() local
2042 if (oldc->str) { in services_convert_context()
2043 s = kstrdup(oldc->str, gfp_flags); in services_convert_context()
2045 return -ENOMEM; in services_convert_context()
2047 rc = string_to_context_struct(args->newp, NULL, s, newc, SECSID_NULL); in services_convert_context()
2048 if (rc == -EINVAL) { in services_convert_context()
2052 * IMPORTANT: We need to copy the contents of oldc->str in services_convert_context()
2056 memcpy(s, oldc->str, oldc->len); in services_convert_context()
2058 newc->str = s; in services_convert_context()
2059 newc->len = oldc->len; in services_convert_context()
2063 if (rc) { in services_convert_context()
2065 pr_err("SELinux: Unable to map context %s, rc = %d.\n", in services_convert_context()
2066 oldc->str, -rc); in services_convert_context()
2067 return rc; in services_convert_context()
2070 oldc->str); in services_convert_context()
2077 usrdatum = symtab_search(&args->newp->p_users, in services_convert_context()
2078 sym_name(args->oldp, SYM_USERS, oldc->user - 1)); in services_convert_context()
2081 newc->user = usrdatum->value; in services_convert_context()
2084 role = symtab_search(&args->newp->p_roles, in services_convert_context()
2085 sym_name(args->oldp, SYM_ROLES, oldc->role - 1)); in services_convert_context()
2088 newc->role = role->value; in services_convert_context()
2091 typdatum = symtab_search(&args->newp->p_types, in services_convert_context()
2092 sym_name(args->oldp, SYM_TYPES, oldc->type - 1)); in services_convert_context()
2095 newc->type = typdatum->value; in services_convert_context()
2098 if (args->oldp->mls_enabled && args->newp->mls_enabled) { in services_convert_context()
2099 rc = mls_convert_context(args->oldp, args->newp, oldc, newc); in services_convert_context()
2100 if (rc) in services_convert_context()
2102 } else if (!args->oldp->mls_enabled && args->newp->mls_enabled) { in services_convert_context()
2104 * Switching between non-MLS and MLS policy: in services_convert_context()
2110 oc = args->newp->ocontexts[OCON_ISID]; in services_convert_context()
2111 while (oc && oc->sid[0] != SECINITSID_UNLABELED) in services_convert_context()
2112 oc = oc->next; in services_convert_context()
2118 rc = mls_range_set(newc, &oc->context[0].range); in services_convert_context()
2119 if (rc) in services_convert_context()
2124 if (!policydb_context_isvalid(args->newp, newc)) { in services_convert_context()
2125 rc = convert_context_handle_invalid_context(args->oldp, oldc); in services_convert_context()
2126 if (rc) in services_convert_context()
2132 /* Map old representation to string and save it. */ in services_convert_context()
2133 rc = context_struct_to_string(args->oldp, oldc, &s, &len); in services_convert_context()
2134 if (rc) in services_convert_context()
2135 return rc; in services_convert_context()
2137 newc->str = s; in services_convert_context()
2138 newc->len = len; in services_convert_context()
2140 newc->str); in services_convert_context()
2150 p = &policy->policydb; in security_load_policycaps()
2154 ebitmap_get_bit(&p->policycaps, i)); in security_load_policycaps()
2159 ebitmap_get_bit(&p->policycaps, i)); in security_load_policycaps()
2161 ebitmap_for_each_positive_bit(&p->policycaps, node, i) { in security_load_policycaps()
2176 sidtab_destroy(policy->sidtab); in selinux_policy_free()
2177 kfree(policy->map.mapping); in selinux_policy_free()
2178 policydb_destroy(&policy->policydb); in selinux_policy_free()
2179 kfree(policy->sidtab); in selinux_policy_free()
2185 cond_policydb_destroy_dup(&policy->policydb); in selinux_policy_cond_free()
2194 oldpolicy = rcu_dereference_protected(state->policy, in selinux_policy_cancel()
2195 lockdep_is_held(&state->policy_mutex)); in selinux_policy_cancel()
2197 sidtab_cancel_convert(oldpolicy->sidtab); in selinux_policy_cancel()
2198 selinux_policy_free(load_state->policy); in selinux_policy_cancel()
2199 kfree(load_state->convert_data); in selinux_policy_cancel()
2216 struct selinux_policy *oldpolicy, *newpolicy = load_state->policy; in selinux_policy_commit()
2220 oldpolicy = rcu_dereference_protected(state->policy, in selinux_policy_commit()
2221 lockdep_is_held(&state->policy_mutex)); in selinux_policy_commit()
2225 if (oldpolicy->policydb.mls_enabled && !newpolicy->policydb.mls_enabled) in selinux_policy_commit()
2227 else if (!oldpolicy->policydb.mls_enabled && newpolicy->policydb.mls_enabled) in selinux_policy_commit()
2233 newpolicy->latest_granting = oldpolicy->latest_granting + 1; in selinux_policy_commit()
2235 newpolicy->latest_granting = 1; in selinux_policy_commit()
2236 seqno = newpolicy->latest_granting; in selinux_policy_commit()
2240 sidtab_freeze_begin(oldpolicy->sidtab, &flags); in selinux_policy_commit()
2241 rcu_assign_pointer(state->policy, newpolicy); in selinux_policy_commit()
2242 sidtab_freeze_end(oldpolicy->sidtab, &flags); in selinux_policy_commit()
2244 rcu_assign_pointer(state->policy, newpolicy); in selinux_policy_commit()
2263 kfree(load_state->convert_data); in selinux_policy_commit()
2270 * security_load_policy - Load a security policy configuration.
2286 int rc = 0; in security_load_policy() local
2291 return -ENOMEM; in security_load_policy()
2293 newpolicy->sidtab = kzalloc(sizeof(*newpolicy->sidtab), GFP_KERNEL); in security_load_policy()
2294 if (!newpolicy->sidtab) { in security_load_policy()
2295 rc = -ENOMEM; in security_load_policy()
2299 rc = policydb_read(&newpolicy->policydb, fp); in security_load_policy()
2300 if (rc) in security_load_policy()
2303 newpolicy->policydb.len = len; in security_load_policy()
2304 rc = selinux_set_mapping(&newpolicy->policydb, secclass_map, in security_load_policy()
2305 &newpolicy->map); in security_load_policy()
2306 if (rc) in security_load_policy()
2309 rc = policydb_load_isids(&newpolicy->policydb, newpolicy->sidtab); in security_load_policy()
2310 if (rc) { in security_load_policy()
2317 load_state->policy = newpolicy; in security_load_policy()
2318 load_state->convert_data = NULL; in security_load_policy()
2322 oldpolicy = rcu_dereference_protected(state->policy, in security_load_policy()
2323 lockdep_is_held(&state->policy_mutex)); in security_load_policy()
2326 rc = security_preserve_bools(oldpolicy, newpolicy); in security_load_policy()
2327 if (rc) { in security_load_policy()
2339 rc = -ENOMEM; in security_load_policy()
2343 convert_data->args.oldp = &oldpolicy->policydb; in security_load_policy()
2344 convert_data->args.newp = &newpolicy->policydb; in security_load_policy()
2346 convert_data->sidtab_params.args = &convert_data->args; in security_load_policy()
2347 convert_data->sidtab_params.target = newpolicy->sidtab; in security_load_policy()
2349 rc = sidtab_convert(oldpolicy->sidtab, &convert_data->sidtab_params); in security_load_policy()
2350 if (rc) { in security_load_policy()
2357 load_state->policy = newpolicy; in security_load_policy()
2358 load_state->convert_data = convert_data; in security_load_policy()
2364 sidtab_destroy(newpolicy->sidtab); in security_load_policy()
2366 kfree(newpolicy->map.mapping); in security_load_policy()
2368 policydb_destroy(&newpolicy->policydb); in security_load_policy()
2370 kfree(newpolicy->sidtab); in security_load_policy()
2374 return rc; in security_load_policy()
2378 * ocontext_to_sid - Helper to safely get sid for an ocontext
2385 * on-demand when needed. Since updating the SID value is an SMP-sensitive
2388 * WARNING: This function may return -ESTALE, indicating that the caller
2389 * must retry the operation after re-acquiring the policy pointer!
2394 int rc; in ocontext_to_sid() local
2398 sid = smp_load_acquire(&c->sid[index]); in ocontext_to_sid()
2400 rc = sidtab_context_to_sid(sidtab, &c->context[index], &sid); in ocontext_to_sid()
2401 if (rc) in ocontext_to_sid()
2402 return rc; in ocontext_to_sid()
2408 smp_store_release(&c->sid[index], sid); in ocontext_to_sid()
2415 * security_port_sid - Obtain the SID for a port.
2426 int rc; in security_port_sid() local
2434 rc = 0; in security_port_sid()
2437 policydb = &policy->policydb; in security_port_sid()
2438 sidtab = policy->sidtab; in security_port_sid()
2440 c = policydb->ocontexts[OCON_PORT]; in security_port_sid()
2442 if (c->u.port.protocol == protocol && in security_port_sid()
2443 c->u.port.low_port <= port && in security_port_sid()
2444 c->u.port.high_port >= port) in security_port_sid()
2446 c = c->next; in security_port_sid()
2450 rc = ocontext_to_sid(sidtab, c, 0, out_sid); in security_port_sid()
2451 if (rc == -ESTALE) { in security_port_sid()
2455 if (rc) in security_port_sid()
2463 return rc; in security_port_sid()
2467 * security_ib_pkey_sid - Obtain the SID for a pkey.
2478 int rc; in security_ib_pkey_sid() local
2486 rc = 0; in security_ib_pkey_sid()
2489 policydb = &policy->policydb; in security_ib_pkey_sid()
2490 sidtab = policy->sidtab; in security_ib_pkey_sid()
2492 c = policydb->ocontexts[OCON_IBPKEY]; in security_ib_pkey_sid()
2494 if (c->u.ibpkey.low_pkey <= pkey_num && in security_ib_pkey_sid()
2495 c->u.ibpkey.high_pkey >= pkey_num && in security_ib_pkey_sid()
2496 c->u.ibpkey.subnet_prefix == subnet_prefix) in security_ib_pkey_sid()
2499 c = c->next; in security_ib_pkey_sid()
2503 rc = ocontext_to_sid(sidtab, c, 0, out_sid); in security_ib_pkey_sid()
2504 if (rc == -ESTALE) { in security_ib_pkey_sid()
2508 if (rc) in security_ib_pkey_sid()
2515 return rc; in security_ib_pkey_sid()
2519 * security_ib_endport_sid - Obtain the SID for a subnet management interface.
2520 * @dev_name: device name
2530 int rc; in security_ib_endport_sid() local
2538 rc = 0; in security_ib_endport_sid()
2541 policydb = &policy->policydb; in security_ib_endport_sid()
2542 sidtab = policy->sidtab; in security_ib_endport_sid()
2544 c = policydb->ocontexts[OCON_IBENDPORT]; in security_ib_endport_sid()
2546 if (c->u.ibendport.port == port_num && in security_ib_endport_sid()
2547 !strncmp(c->u.ibendport.dev_name, in security_ib_endport_sid()
2552 c = c->next; in security_ib_endport_sid()
2556 rc = ocontext_to_sid(sidtab, c, 0, out_sid); in security_ib_endport_sid()
2557 if (rc == -ESTALE) { in security_ib_endport_sid()
2561 if (rc) in security_ib_endport_sid()
2568 return rc; in security_ib_endport_sid()
2572 * security_netif_sid - Obtain the SID for a network interface.
2573 * @name: interface name
2576 int security_netif_sid(const char *name, u32 *if_sid) in security_netif_sid() argument
2581 int rc; in security_netif_sid() local
2591 rc = 0; in security_netif_sid()
2594 policydb = &policy->policydb; in security_netif_sid()
2595 sidtab = policy->sidtab; in security_netif_sid()
2596 wildcard_support = ebitmap_get_bit(&policydb->policycaps, POLICYDB_CAP_NETIF_WILDCARD); in security_netif_sid()
2598 c = policydb->ocontexts[OCON_NETIF]; in security_netif_sid()
2601 if (match_wildcard(c->u.name, name)) in security_netif_sid()
2604 if (strcmp(c->u.name, name) == 0) in security_netif_sid()
2608 c = c->next; in security_netif_sid()
2612 rc = ocontext_to_sid(sidtab, c, 0, if_sid); in security_netif_sid()
2613 if (rc == -ESTALE) { in security_netif_sid()
2617 if (rc) in security_netif_sid()
2624 return rc; in security_netif_sid()
2639 * security_node_sid - Obtain the SID for a node (host).
2653 int rc; in security_node_sid() local
2664 policydb = &policy->policydb; in security_node_sid()
2665 sidtab = policy->sidtab; in security_node_sid()
2671 rc = -EINVAL; in security_node_sid()
2677 c = policydb->ocontexts[OCON_NODE]; in security_node_sid()
2679 if (c->u.node.addr == (addr & c->u.node.mask)) in security_node_sid()
2681 c = c->next; in security_node_sid()
2687 rc = -EINVAL; in security_node_sid()
2690 c = policydb->ocontexts[OCON_NODE6]; in security_node_sid()
2692 if (match_ipv6_addrmask(addrp, c->u.node6.addr, in security_node_sid()
2693 c->u.node6.mask)) in security_node_sid()
2695 c = c->next; in security_node_sid()
2700 rc = 0; in security_node_sid()
2706 rc = ocontext_to_sid(sidtab, c, 0, out_sid); in security_node_sid()
2707 if (rc == -ESTALE) { in security_node_sid()
2711 if (rc) in security_node_sid()
2717 rc = 0; in security_node_sid()
2720 return rc; in security_node_sid()
2726 * security_get_user_sids - Obtain reachable SIDs for a user.
2753 int rc; in security_get_user_sids() local
2763 return -ENOMEM; in security_get_user_sids()
2769 policydb = &policy->policydb; in security_get_user_sids()
2770 sidtab = policy->sidtab; in security_get_user_sids()
2774 rc = -EINVAL; in security_get_user_sids()
2779 rc = -EINVAL; in security_get_user_sids()
2780 user = symtab_search(&policydb->p_users, username); in security_get_user_sids()
2784 usercon.user = user->value; in security_get_user_sids()
2786 ebitmap_for_each_positive_bit(&user->roles, rnode, i) { in security_get_user_sids()
2787 role = policydb->role_val_to_struct[i]; in security_get_user_sids()
2789 ebitmap_for_each_positive_bit(&role->types, tnode, j) { in security_get_user_sids()
2796 rc = sidtab_context_to_sid(sidtab, &usercon, &sid); in security_get_user_sids()
2797 if (rc == -ESTALE) { in security_get_user_sids()
2801 if (rc) in security_get_user_sids()
2806 rc = -ENOMEM; in security_get_user_sids()
2818 rc = 0; in security_get_user_sids()
2821 if (rc || !mynel) { in security_get_user_sids()
2823 return rc; in security_get_user_sids()
2826 rc = -ENOMEM; in security_get_user_sids()
2830 return rc; in security_get_user_sids()
2834 rc = avc_has_perm_noaudit(fromsid, mysids[i], in security_get_user_sids()
2838 if (!rc) in security_get_user_sids()
2849 * __security_genfs_sid - Helper to obtain a SID for a file in a filesystem
2860 * WARNING: This function may return -ESTALE, indicating that the caller
2861 * must retry the operation after re-acquiring the policy pointer!
2869 struct policydb *policydb = &policy->policydb; in __security_genfs_sid()
2870 struct sidtab *sidtab = policy->sidtab; in __security_genfs_sid()
2879 sclass = unmap_class(&policy->map, orig_sclass); in __security_genfs_sid()
2882 for (genfs = policydb->genfs; genfs; genfs = genfs->next) { in __security_genfs_sid()
2883 cmp = strcmp(fstype, genfs->fstype); in __security_genfs_sid()
2889 return -ENOENT; in __security_genfs_sid()
2891 for (c = genfs->head; c; c = c->next) { in __security_genfs_sid()
2892 size_t len = strlen(c->u.name); in __security_genfs_sid()
2893 if ((!c->v.sclass || sclass == c->v.sclass) && in __security_genfs_sid()
2894 (strncmp(c->u.name, path, len) == 0)) in __security_genfs_sid()
2899 return -ENOENT; in __security_genfs_sid()
2905 * security_genfs_sid - Obtain a SID for a file in a filesystem
2933 } while (retval == -ESTALE); in security_genfs_sid()
2948 * security_fs_use - Determine how to handle labeling for a filesystem.
2956 int rc; in security_fs_use() local
2959 const char *fstype = sb->s_type->name; in security_fs_use()
2962 sbsec->behavior = SECURITY_FS_USE_NONE; in security_fs_use()
2963 sbsec->sid = SECINITSID_UNLABELED; in security_fs_use()
2970 policydb = &policy->policydb; in security_fs_use()
2971 sidtab = policy->sidtab; in security_fs_use()
2973 c = policydb->ocontexts[OCON_FSUSE]; in security_fs_use()
2975 if (strcmp(fstype, c->u.name) == 0) in security_fs_use()
2977 c = c->next; in security_fs_use()
2981 sbsec->behavior = c->v.behavior; in security_fs_use()
2982 rc = ocontext_to_sid(sidtab, c, 0, &sbsec->sid); in security_fs_use()
2983 if (rc == -ESTALE) { in security_fs_use()
2987 if (rc) in security_fs_use()
2990 rc = __security_genfs_sid(policy, fstype, "/", in security_fs_use()
2991 SECCLASS_DIR, &sbsec->sid); in security_fs_use()
2992 if (rc == -ESTALE) { in security_fs_use()
2996 if (rc) { in security_fs_use()
2997 sbsec->behavior = SECURITY_FS_USE_NONE; in security_fs_use()
2998 rc = 0; in security_fs_use()
3000 sbsec->behavior = SECURITY_FS_USE_GENFS; in security_fs_use()
3006 return rc; in security_fs_use()
3014 int rc; in security_get_bools() local
3016 policydb = &policy->policydb; in security_get_bools()
3021 rc = 0; in security_get_bools()
3022 *len = policydb->p_bools.nprim; in security_get_bools()
3026 rc = -ENOMEM; in security_get_bools()
3031 rc = -ENOMEM; in security_get_bools()
3037 (*values)[i] = policydb->bool_val_to_struct[i]->state; in security_get_bools()
3039 rc = -ENOMEM; in security_get_bools()
3045 rc = 0; in security_get_bools()
3047 return rc; in security_get_bools()
3066 int rc; in security_set_bools() local
3070 return -EINVAL; in security_set_bools()
3072 oldpolicy = rcu_dereference_protected(state->policy, in security_set_bools()
3073 lockdep_is_held(&state->policy_mutex)); in security_set_bools()
3076 if (WARN_ON(len != oldpolicy->policydb.p_bools.nprim)) in security_set_bools()
3077 return -EINVAL; in security_set_bools()
3081 return -ENOMEM; in security_set_bools()
3087 rc = cond_policydb_dup(&newpolicy->policydb, &oldpolicy->policydb); in security_set_bools()
3088 if (rc) { in security_set_bools()
3090 return -ENOMEM; in security_set_bools()
3096 int old_state = newpolicy->policydb.bool_val_to_struct[i]->state; in security_set_bools()
3102 sym_name(&newpolicy->policydb, SYM_BOOLS, i), in security_set_bools()
3107 newpolicy->policydb.bool_val_to_struct[i]->state = new_state; in security_set_bools()
3111 /* Re-evaluate the conditional rules in the copy */ in security_set_bools()
3112 evaluate_cond_nodes(&newpolicy->policydb); in security_set_bools()
3115 newpolicy->latest_granting = oldpolicy->latest_granting + 1; in security_set_bools()
3116 seqno = newpolicy->latest_granting; in security_set_bools()
3119 rcu_assign_pointer(state->policy, newpolicy); in security_set_bools()
3138 int rc; in security_get_bool_value() local
3146 policydb = &policy->policydb; in security_get_bool_value()
3148 rc = -EFAULT; in security_get_bool_value()
3149 len = policydb->p_bools.nprim; in security_get_bool_value()
3153 rc = policydb->bool_val_to_struct[index]->state; in security_get_bool_value()
3156 return rc; in security_get_bool_value()
3162 int rc, *bvalues = NULL; in security_preserve_bools() local
3167 rc = security_get_bools(oldpolicy, &nbools, &bnames, &bvalues); in security_preserve_bools()
3168 if (rc) in security_preserve_bools()
3171 booldatum = symtab_search(&newpolicy->policydb.p_bools, in security_preserve_bools()
3174 booldatum->state = bvalues[i]; in security_preserve_bools()
3176 evaluate_cond_nodes(&newpolicy->policydb); in security_preserve_bools()
3185 return rc; in security_preserve_bools()
3189 * security_sid_mls_copy() - computes a new sid based on the given
3202 int rc; in security_sid_mls_copy() local
3210 rc = 0; in security_sid_mls_copy()
3215 policydb = &policy->policydb; in security_sid_mls_copy()
3216 sidtab = policy->sidtab; in security_sid_mls_copy()
3218 if (!policydb->mls_enabled) { in security_sid_mls_copy()
3223 rc = -EINVAL; in security_sid_mls_copy()
3231 rc = -EINVAL; in security_sid_mls_copy()
3239 newcon.user = context1->user; in security_sid_mls_copy()
3240 newcon.role = context1->role; in security_sid_mls_copy()
3241 newcon.type = context1->type; in security_sid_mls_copy()
3242 rc = mls_context_cpy(&newcon, context2); in security_sid_mls_copy()
3243 if (rc) in security_sid_mls_copy()
3248 rc = convert_context_handle_invalid_context(policydb, in security_sid_mls_copy()
3250 if (rc) { in security_sid_mls_copy()
3261 audit_log_n_untrustedstring(ab, s, len - 1); in security_sid_mls_copy()
3268 rc = sidtab_context_to_sid(sidtab, &newcon, new_sid); in security_sid_mls_copy()
3269 if (rc == -ESTALE) { in security_sid_mls_copy()
3277 return rc; in security_sid_mls_copy()
3281 * security_net_peersid_resolve - Compare and resolve two network peer SIDs
3294 * ------------------------------+-----------------+-----------------
3298 * multiple, inconsistent labels | -<errno> | SECSID_NULL
3308 int rc; in security_net_peersid_resolve() local
3334 policydb = &policy->policydb; in security_net_peersid_resolve()
3335 sidtab = policy->sidtab; in security_net_peersid_resolve()
3340 * security server was initialized and state->initialized was true. in security_net_peersid_resolve()
3342 if (!policydb->mls_enabled) { in security_net_peersid_resolve()
3343 rc = 0; in security_net_peersid_resolve()
3347 rc = -EINVAL; in security_net_peersid_resolve()
3354 rc = -EINVAL; in security_net_peersid_resolve()
3361 rc = (mls_context_equal(nlbl_ctx, xfrm_ctx) ? 0 : -EACCES); in security_net_peersid_resolve()
3362 if (rc) in security_net_peersid_resolve()
3373 return rc; in security_net_peersid_resolve()
3379 char *name = k, **classes = args; in get_classes_callback() local
3380 u32 value = datum->value - 1; in get_classes_callback()
3382 classes[value] = kstrdup(name, GFP_ATOMIC); in get_classes_callback()
3384 return -ENOMEM; in get_classes_callback()
3393 int rc; in security_get_classes() local
3395 policydb = &policy->policydb; in security_get_classes()
3397 rc = -ENOMEM; in security_get_classes()
3398 *nclasses = policydb->p_classes.nprim; in security_get_classes()
3403 rc = hashtab_map(&policydb->p_classes.table, get_classes_callback, in security_get_classes()
3405 if (rc) { in security_get_classes()
3414 return rc; in security_get_classes()
3420 char *name = k, **perms = args; in get_permissions_callback() local
3421 u32 value = datum->value - 1; in get_permissions_callback()
3423 perms[value] = kstrdup(name, GFP_ATOMIC); in get_permissions_callback()
3425 return -ENOMEM; in get_permissions_callback()
3435 int rc; in security_get_permissions() local
3438 policydb = &policy->policydb; in security_get_permissions()
3440 rc = -EINVAL; in security_get_permissions()
3441 match = symtab_search(&policydb->p_classes, class); in security_get_permissions()
3448 rc = -ENOMEM; in security_get_permissions()
3449 *nperms = match->permissions.nprim; in security_get_permissions()
3454 if (match->comdatum) { in security_get_permissions()
3455 rc = hashtab_map(&match->comdatum->permissions.table, in security_get_permissions()
3457 if (rc) in security_get_permissions()
3461 rc = hashtab_map(&match->permissions.table, get_permissions_callback, in security_get_permissions()
3463 if (rc) in security_get_permissions()
3467 return rc; in security_get_permissions()
3473 return rc; in security_get_permissions()
3486 value = policy->policydb.reject_unknown; in security_get_reject_unknown()
3501 value = policy->policydb.allow_unknown; in security_get_allow_unknown()
3507 * security_policycap_supported - Check for a specific policy capability
3519 int rc; in security_policycap_supported() local
3526 rc = ebitmap_get_bit(&policy->policydb.policycaps, req_cap); in security_policycap_supported()
3529 return rc; in security_policycap_supported()
3542 context_destroy(&rule->au_ctxt); in selinux_audit_rule_free()
3558 int rc = 0; in selinux_audit_rule_init() local
3563 return -EOPNOTSUPP; in selinux_audit_rule_init()
3574 return -EINVAL; in selinux_audit_rule_init()
3580 /* we do not allow a range, indicated by the presence of '-' */ in selinux_audit_rule_init()
3581 if (strchr(rulestr, '-')) in selinux_audit_rule_init()
3582 return -EINVAL; in selinux_audit_rule_init()
3586 return -EINVAL; in selinux_audit_rule_init()
3591 return -ENOMEM; in selinux_audit_rule_init()
3592 context_init(&tmprule->au_ctxt); in selinux_audit_rule_init()
3595 policy = rcu_dereference(state->policy); in selinux_audit_rule_init()
3596 policydb = &policy->policydb; in selinux_audit_rule_init()
3597 tmprule->au_seqno = policy->latest_granting; in selinux_audit_rule_init()
3601 userdatum = symtab_search(&policydb->p_users, rulestr); in selinux_audit_rule_init()
3603 rc = -EINVAL; in selinux_audit_rule_init()
3606 tmprule->au_ctxt.user = userdatum->value; in selinux_audit_rule_init()
3610 roledatum = symtab_search(&policydb->p_roles, rulestr); in selinux_audit_rule_init()
3612 rc = -EINVAL; in selinux_audit_rule_init()
3615 tmprule->au_ctxt.role = roledatum->value; in selinux_audit_rule_init()
3619 typedatum = symtab_search(&policydb->p_types, rulestr); in selinux_audit_rule_init()
3621 rc = -EINVAL; in selinux_audit_rule_init()
3624 tmprule->au_ctxt.type = typedatum->value; in selinux_audit_rule_init()
3630 rc = mls_from_string(policydb, rulestr, &tmprule->au_ctxt, in selinux_audit_rule_init()
3632 if (rc) in selinux_audit_rule_init()
3645 return rc; in selinux_audit_rule_init()
3653 for (i = 0; i < rule->field_count; i++) { in selinux_audit_rule_known()
3654 struct audit_field *f = &rule->fields[i]; in selinux_audit_rule_known()
3655 switch (f->type) { in selinux_audit_rule_known()
3684 return -ENOENT; in selinux_audit_rule_match()
3692 policy = rcu_dereference(state->policy); in selinux_audit_rule_match()
3694 if (rule->au_seqno < policy->latest_granting) { in selinux_audit_rule_match()
3695 match = -ESTALE; in selinux_audit_rule_match()
3699 ctxt = sidtab_search(policy->sidtab, prop->selinux.secid); in selinux_audit_rule_match()
3702 prop->selinux.secid); in selinux_audit_rule_match()
3703 match = -ENOENT; in selinux_audit_rule_match()
3714 match = (ctxt->user == rule->au_ctxt.user); in selinux_audit_rule_match()
3717 match = (ctxt->user != rule->au_ctxt.user); in selinux_audit_rule_match()
3725 match = (ctxt->role == rule->au_ctxt.role); in selinux_audit_rule_match()
3728 match = (ctxt->role != rule->au_ctxt.role); in selinux_audit_rule_match()
3736 match = (ctxt->type == rule->au_ctxt.type); in selinux_audit_rule_match()
3739 match = (ctxt->type != rule->au_ctxt.type); in selinux_audit_rule_match()
3749 &ctxt->range.level[0] : &ctxt->range.level[1]); in selinux_audit_rule_match()
3752 match = mls_level_eq(&rule->au_ctxt.range.level[0], in selinux_audit_rule_match()
3756 match = !mls_level_eq(&rule->au_ctxt.range.level[0], in selinux_audit_rule_match()
3760 match = (mls_level_dom(&rule->au_ctxt.range.level[0], in selinux_audit_rule_match()
3762 !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()
3771 &rule->au_ctxt.range.level[0]) && in selinux_audit_rule_match()
3773 &rule->au_ctxt.range.level[0])); in selinux_audit_rule_match()
3777 &rule->au_ctxt.range.level[0]); in selinux_audit_rule_match()
3808 * security_netlbl_cache_add - Add an entry to the NetLabel cache
3826 secattr->cache = netlbl_secattr_cache_alloc(GFP_ATOMIC); in security_netlbl_cache_add()
3827 if (secattr->cache == NULL) { in security_netlbl_cache_add()
3833 secattr->cache->free = kfree; in security_netlbl_cache_add()
3834 secattr->cache->data = sid_cache; in security_netlbl_cache_add()
3835 secattr->flags |= NETLBL_SECATTR_CACHE; in security_netlbl_cache_add()
3839 * security_netlbl_secattr_to_sid - Convert a NetLabel secattr to a SELinux SID
3859 int rc; in security_netlbl_secattr_to_sid() local
3869 rc = 0; in security_netlbl_secattr_to_sid()
3872 policydb = &policy->policydb; in security_netlbl_secattr_to_sid()
3873 sidtab = policy->sidtab; in security_netlbl_secattr_to_sid()
3875 if (secattr->flags & NETLBL_SECATTR_CACHE) in security_netlbl_secattr_to_sid()
3876 *sid = *(u32 *)secattr->cache->data; in security_netlbl_secattr_to_sid()
3877 else if (secattr->flags & NETLBL_SECATTR_SECID) in security_netlbl_secattr_to_sid()
3878 *sid = secattr->attr.secid; in security_netlbl_secattr_to_sid()
3879 else if (secattr->flags & NETLBL_SECATTR_MLS_LVL) { in security_netlbl_secattr_to_sid()
3880 rc = -EIDRM; in security_netlbl_secattr_to_sid()
3886 ctx_new.user = ctx->user; in security_netlbl_secattr_to_sid()
3887 ctx_new.role = ctx->role; in security_netlbl_secattr_to_sid()
3888 ctx_new.type = ctx->type; in security_netlbl_secattr_to_sid()
3890 if (secattr->flags & NETLBL_SECATTR_MLS_CAT) { in security_netlbl_secattr_to_sid()
3891 rc = mls_import_netlbl_cat(policydb, &ctx_new, secattr); in security_netlbl_secattr_to_sid()
3892 if (rc) in security_netlbl_secattr_to_sid()
3895 rc = -EIDRM; in security_netlbl_secattr_to_sid()
3901 rc = sidtab_context_to_sid(sidtab, &ctx_new, sid); in security_netlbl_secattr_to_sid()
3903 if (rc == -ESTALE) { in security_netlbl_secattr_to_sid()
3907 if (rc) in security_netlbl_secattr_to_sid()
3916 return rc; in security_netlbl_secattr_to_sid()
3920 * security_netlbl_sid_to_secattr - Convert a SELinux SID to a NetLabel secattr
3933 int rc; in security_netlbl_sid_to_secattr() local
3941 policydb = &policy->policydb; in security_netlbl_sid_to_secattr()
3943 rc = -ENOENT; in security_netlbl_sid_to_secattr()
3944 ctx = sidtab_search(policy->sidtab, sid); in security_netlbl_sid_to_secattr()
3948 rc = -ENOMEM; in security_netlbl_sid_to_secattr()
3949 secattr->domain = kstrdup(sym_name(policydb, SYM_TYPES, ctx->type - 1), in security_netlbl_sid_to_secattr()
3951 if (secattr->domain == NULL) in security_netlbl_sid_to_secattr()
3954 secattr->attr.secid = sid; in security_netlbl_sid_to_secattr()
3955 secattr->flags |= NETLBL_SECATTR_DOMAIN_CPY | NETLBL_SECATTR_SECID; in security_netlbl_sid_to_secattr()
3957 rc = mls_export_netlbl_cat(policydb, ctx, secattr); in security_netlbl_sid_to_secattr()
3960 return rc; in security_netlbl_sid_to_secattr()
3965 * __security_read_policy - read the policy.
3974 int rc; in __security_read_policy() local
3980 rc = policydb_write(&policy->policydb, &fp); in __security_read_policy()
3981 if (rc) in __security_read_policy()
3982 return rc; in __security_read_policy()
3984 *len = (unsigned long)fp.data - (unsigned long)data; in __security_read_policy()
3989 * security_read_policy - read the policy.
4000 state->policy, lockdep_is_held(&state->policy_mutex)); in security_read_policy()
4002 return -EINVAL; in security_read_policy()
4004 *len = policy->policydb.len; in security_read_policy()
4007 return -ENOMEM; in security_read_policy()
4013 * security_read_state_kernel - read the policy.
4030 state->policy, lockdep_is_held(&state->policy_mutex)); in security_read_state_kernel()
4032 return -EINVAL; in security_read_state_kernel()
4034 *len = policy->policydb.len; in security_read_state_kernel()
4037 return -ENOMEM; in security_read_state_kernel()