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      1 /*
      2  * Copyright 2011 Tresys Technology, LLC. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are met:
      6  *
      7  *    1. Redistributions of source code must retain the above copyright notice,
      8  *       this list of conditions and the following disclaimer.
      9  *
     10  *    2. Redistributions in binary form must reproduce the above copyright notice,
     11  *       this list of conditions and the following disclaimer in the documentation
     12  *       and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY TRESYS TECHNOLOGY, LLC ``AS IS'' AND ANY EXPRESS
     15  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     16  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     17  * EVENT SHALL TRESYS TECHNOLOGY, LLC OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
     18  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     19  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     21  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     22  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     23  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  *
     25  * The views and conclusions contained in the software and documentation are those
     26  * of the authors and should not be interpreted as representing official policies,
     27  * either expressed or implied, of Tresys Technology, LLC.
     28  */
     29 
     30 #include <stdlib.h>
     31 #include <stdio.h>
     32 #include <string.h>
     33 
     34 #include <sepol/policydb/conditional.h>
     35 
     36 #include "cil_internal.h"
     37 #include "cil_flavor.h"
     38 #include "cil_log.h"
     39 #include "cil_mem.h"
     40 #include "cil_tree.h"
     41 #include "cil_list.h"
     42 #include "cil_build_ast.h"
     43 #include "cil_resolve_ast.h"
     44 #include "cil_reset_ast.h"
     45 #include "cil_copy_ast.h"
     46 #include "cil_verify.h"
     47 #include "cil_strpool.h"
     48 #include "cil_symtab.h"
     49 
     50 struct cil_args_resolve {
     51 	struct cil_db *db;
     52 	enum cil_pass pass;
     53 	uint32_t *changed;
     54 	char *last_resolved_name;
     55 	struct cil_tree_node *optstack;
     56 	struct cil_tree_node *boolif;
     57 	struct cil_tree_node *macro;
     58 	struct cil_tree_node *blockstack;
     59 	struct cil_list *sidorder_lists;
     60 	struct cil_list *classorder_lists;
     61 	struct cil_list *unordered_classorder_lists;
     62 	struct cil_list *catorder_lists;
     63 	struct cil_list *sensitivityorder_lists;
     64 	struct cil_list *in_list;
     65 };
     66 
     67 static struct cil_name * __cil_insert_name(struct cil_db *db, hashtab_key_t key, struct cil_tree_node *ast_node)
     68 {
     69 	/* Currently only used for typetransition file names.
     70 	   But could be used for any string that is passed as a parameter.
     71 	*/
     72 	struct cil_tree_node *parent = ast_node->parent;
     73 	struct cil_macro *macro = NULL;
     74 	struct cil_name *name;
     75 	symtab_t *symtab;
     76 	enum cil_sym_index sym_index;
     77 	struct cil_symtab_datum *datum = NULL;
     78 
     79 	cil_flavor_to_symtab_index(CIL_NAME, &sym_index);
     80 	symtab = &((struct cil_root *)db->ast->root->data)->symtab[sym_index];
     81 
     82 	cil_symtab_get_datum(symtab, key, &datum);
     83 	if (datum != NULL) {
     84 		return (struct cil_name *)datum;
     85 	}
     86 
     87 	if (parent->flavor == CIL_CALL) {
     88 		struct cil_call *call = parent->data;
     89 		macro = call->macro;
     90 	} else if (parent->flavor == CIL_MACRO) {
     91 		macro = parent->data;
     92 	}
     93 	if (macro != NULL) {
     94 		struct cil_list_item *item;
     95 		cil_list_for_each(item, macro->params) {
     96 			if (((struct cil_param*)item->data)->str == key) {
     97 				return NULL;
     98 			}
     99 		}
    100 	}
    101 
    102 	cil_name_init(&name);
    103 	cil_symtab_insert(symtab, key, (struct cil_symtab_datum *)name, ast_node);
    104 	cil_list_append(db->names, CIL_NAME, name);
    105 
    106 	return name;
    107 }
    108 
    109 static int __cil_resolve_perms(symtab_t *class_symtab, symtab_t *common_symtab, struct cil_list *perm_strs, struct cil_list **perm_datums, enum cil_flavor class_flavor)
    110 {
    111 	int rc = SEPOL_ERR;
    112 	struct cil_list_item *curr;
    113 
    114 	cil_list_init(perm_datums, perm_strs->flavor);
    115 
    116 	cil_list_for_each(curr, perm_strs) {
    117 		if (curr->flavor == CIL_LIST) {
    118 			struct cil_list *sub_list;
    119 			rc = __cil_resolve_perms(class_symtab, common_symtab, curr->data, &sub_list, class_flavor);
    120 			if (rc != SEPOL_OK) {
    121 				cil_log(CIL_ERR, "Failed to resolve permission list\n");
    122 				goto exit;
    123 			}
    124 			cil_list_append(*perm_datums, CIL_LIST, sub_list);
    125 		} else if (curr->flavor == CIL_STRING) {
    126 			struct cil_symtab_datum *perm_datum = NULL;
    127 			rc = cil_symtab_get_datum(class_symtab, curr->data, &perm_datum);
    128 			if (rc == SEPOL_ENOENT) {
    129 				if (common_symtab) {
    130 					rc = cil_symtab_get_datum(common_symtab, curr->data, &perm_datum);
    131 				}
    132 			}
    133 			if (rc != SEPOL_OK) {
    134 				struct cil_list *empty_list;
    135 				if (class_flavor == CIL_MAP_CLASS) {
    136 					cil_log(CIL_ERR, "Failed to resolve permission %s for map class\n", (char*)curr->data);
    137 					goto exit;
    138 				}
    139 				cil_log(CIL_WARN, "Failed to resolve permission %s\n", (char*)curr->data);
    140 				/* Use an empty list to represent unknown perm */
    141 				cil_list_init(&empty_list, perm_strs->flavor);
    142 				cil_list_append(*perm_datums, CIL_LIST, empty_list);
    143 			} else {
    144 				cil_list_append(*perm_datums, CIL_DATUM, perm_datum);
    145 			}
    146 		} else {
    147 			cil_list_append(*perm_datums, curr->flavor, curr->data);
    148 		}
    149 	}
    150 
    151 	return SEPOL_OK;
    152 
    153 exit:
    154 	return rc;
    155 }
    156 
    157 int cil_resolve_classperms(struct cil_tree_node *current, struct cil_classperms *cp, void *extra_args)
    158 {
    159 	int rc = SEPOL_ERR;
    160 	struct cil_symtab_datum *datum = NULL;
    161 	symtab_t *common_symtab = NULL;
    162 	struct cil_class *class;
    163 
    164 	rc = cil_resolve_name(current, cp->class_str, CIL_SYM_CLASSES, extra_args, &datum);
    165 	if (rc != SEPOL_OK) {
    166 		goto exit;
    167 	}
    168 
    169 	class = (struct cil_class *)datum;
    170 
    171 	if (class->common != NULL) {
    172 		common_symtab = &class->common->perms;
    173 	}
    174 
    175 	cp->class = class;
    176 
    177 	rc = __cil_resolve_perms(&class->perms, common_symtab, cp->perm_strs, &cp->perms, FLAVOR(datum));
    178 	if (rc != SEPOL_OK) {
    179 		goto exit;
    180 	}
    181 
    182 	return SEPOL_OK;
    183 
    184 exit:
    185 	return rc;
    186 }
    187 
    188 int cil_resolve_classperms_set(struct cil_tree_node *current, struct cil_classperms_set *cp_set, void *extra_args)
    189 {
    190 	int rc = SEPOL_ERR;
    191 	struct cil_symtab_datum *datum = NULL;
    192 
    193 	rc = cil_resolve_name(current, cp_set->set_str, CIL_SYM_CLASSPERMSETS, extra_args, &datum);
    194 	if (rc != SEPOL_OK) {
    195 		goto exit;
    196 	}
    197 	cp_set->set = (struct cil_classpermission*)datum;
    198 
    199 	/* This could be an anonymous classpermission */
    200 	if (datum->name == NULL) {
    201 		rc = cil_resolve_classperms_list(current, cp_set->set->classperms, extra_args);
    202 		if (rc != SEPOL_OK) {
    203 			goto exit;
    204 		}
    205 	}
    206 
    207 	return SEPOL_OK;
    208 
    209 exit:
    210 	return rc;
    211 }
    212 
    213 int cil_resolve_classperms_list(struct cil_tree_node *current, struct cil_list *cp_list, void *extra_args)
    214 {
    215 	int rc = SEPOL_ERR;
    216 	struct cil_list_item *curr;
    217 
    218 	cil_list_for_each(curr, cp_list) {
    219 		if (curr->flavor == CIL_CLASSPERMS) {
    220 			rc = cil_resolve_classperms(current, curr->data, extra_args);
    221 			if (rc != SEPOL_OK) {
    222 				goto exit;
    223 			}
    224 		} else {
    225 			rc = cil_resolve_classperms_set(current, curr->data, extra_args);
    226 			if (rc != SEPOL_OK) {
    227 				goto exit;
    228 			}
    229 		}
    230 	}
    231 
    232 	return SEPOL_OK;
    233 
    234 exit:
    235 	return rc;
    236 }
    237 
    238 int cil_resolve_classpermissionset(struct cil_tree_node *current, struct cil_classpermissionset *cps, void *extra_args)
    239 {
    240 	int rc = SEPOL_ERR;
    241 	struct cil_args_resolve *args = extra_args;
    242 	struct cil_list_item *curr;
    243 	struct cil_symtab_datum *datum;
    244 	struct cil_classpermission *cp;
    245 
    246 	rc = cil_resolve_name(current, cps->set_str, CIL_SYM_CLASSPERMSETS, args, &datum);
    247 	if (rc != SEPOL_OK) {
    248 		goto exit;
    249 	}
    250 
    251 	rc = cil_resolve_classperms_list(current, cps->classperms, extra_args);
    252 	if (rc != SEPOL_OK) {
    253 		goto exit;
    254 	}
    255 
    256 	cp = (struct cil_classpermission *)datum;
    257 
    258 	if (cp->classperms == NULL) {
    259 		cil_list_init(&cp->classperms, CIL_CLASSPERMS);
    260 	}
    261 
    262 	cil_list_for_each(curr, cps->classperms) {
    263 		cil_list_append(cp->classperms, curr->flavor, curr->data);
    264 	}
    265 
    266 	return SEPOL_OK;
    267 
    268 exit:
    269 	return rc;
    270 }
    271 
    272 int cil_type_used(struct cil_symtab_datum *datum, int used)
    273 {
    274 	struct cil_typeattribute *attr = NULL;
    275 
    276 	if (FLAVOR(datum) == CIL_TYPEATTRIBUTE) {
    277 		attr = (struct cil_typeattribute*)datum;
    278 		attr->used |= used;
    279 	}
    280 
    281 	return 0;
    282 }
    283 
    284 int cil_resolve_permissionx(struct cil_tree_node *current, struct cil_permissionx *permx, void *extra_args)
    285 {
    286 	struct cil_symtab_datum *obj_datum = NULL;
    287 	int rc = SEPOL_ERR;
    288 
    289 	rc = cil_resolve_name(current, permx->obj_str, CIL_SYM_CLASSES, extra_args, &obj_datum);
    290 	if (rc != SEPOL_OK) {
    291 		goto exit;
    292 	}
    293 	permx->obj = (struct cil_class*)obj_datum;
    294 
    295 	return SEPOL_OK;
    296 
    297 exit:
    298 	return rc;
    299 }
    300 
    301 int cil_resolve_avrule(struct cil_tree_node *current, void *extra_args)
    302 {
    303 	struct cil_args_resolve *args = extra_args;
    304 	struct cil_db *db = NULL;
    305 
    306 	struct cil_avrule *rule = current->data;
    307 	struct cil_symtab_datum *src_datum = NULL;
    308 	struct cil_symtab_datum *tgt_datum = NULL;
    309 	struct cil_symtab_datum *permx_datum = NULL;
    310 	int used;
    311 	int rc = SEPOL_ERR;
    312 
    313 	if (args != NULL) {
    314 		db = args->db;
    315 	}
    316 
    317 	rc = cil_resolve_name(current, rule->src_str, CIL_SYM_TYPES, args, &src_datum);
    318 	if (rc != SEPOL_OK) {
    319 		goto exit;
    320 	}
    321 	rule->src = src_datum;
    322 
    323 	if (rule->tgt_str == CIL_KEY_SELF) {
    324 		rule->tgt = db->selftype;
    325 	} else {
    326 		rc = cil_resolve_name(current, rule->tgt_str, CIL_SYM_TYPES, args, &tgt_datum);
    327 		if (rc != SEPOL_OK) {
    328 			goto exit;
    329 		}
    330 		rule->tgt = tgt_datum;
    331 		used = (rule->rule_kind == CIL_AVRULE_NEVERALLOW) ?
    332 			CIL_ATTR_NEVERALLOW : CIL_ATTR_AVRULE;
    333 		cil_type_used(src_datum, used); /* src not used if tgt is self */
    334 		cil_type_used(tgt_datum, used);
    335 	}
    336 
    337 	if (!rule->is_extended) {
    338 		rc = cil_resolve_classperms_list(current, rule->perms.classperms, extra_args);
    339 		if (rc != SEPOL_OK) {
    340 			goto exit;
    341 		}
    342 	} else {
    343 		if (rule->perms.x.permx_str != NULL) {
    344 			rc = cil_resolve_name(current, rule->perms.x.permx_str, CIL_SYM_PERMX, args, &permx_datum);
    345 			if (rc != SEPOL_OK) {
    346 				goto exit;
    347 			}
    348 			rule->perms.x.permx = (struct cil_permissionx*)permx_datum;
    349 		} else {
    350 			rc = cil_resolve_permissionx(current, rule->perms.x.permx, extra_args);
    351 			if (rc != SEPOL_OK) {
    352 				goto exit;
    353 			}
    354 		}
    355 	}
    356 
    357 	return SEPOL_OK;
    358 
    359 exit:
    360 	return rc;
    361 }
    362 
    363 int cil_resolve_type_rule(struct cil_tree_node *current, void *extra_args)
    364 {
    365 	struct cil_type_rule *rule = current->data;
    366 	struct cil_symtab_datum *src_datum = NULL;
    367 	struct cil_symtab_datum *tgt_datum = NULL;
    368 	struct cil_symtab_datum *obj_datum = NULL;
    369 	struct cil_symtab_datum *result_datum = NULL;
    370 	struct cil_tree_node *result_node = NULL;
    371 	int rc = SEPOL_ERR;
    372 
    373 	rc = cil_resolve_name(current, rule->src_str, CIL_SYM_TYPES, extra_args, &src_datum);
    374 	if (rc != SEPOL_OK) {
    375 		goto exit;
    376 	}
    377 	rule->src = src_datum;
    378 
    379 	rc = cil_resolve_name(current, rule->tgt_str, CIL_SYM_TYPES, extra_args, &tgt_datum);
    380 	if (rc != SEPOL_OK) {
    381 		goto exit;
    382 	}
    383 	rule->tgt = tgt_datum;
    384 
    385 	rc = cil_resolve_name(current, rule->obj_str, CIL_SYM_CLASSES, extra_args, &obj_datum);
    386 	if (rc != SEPOL_OK) {
    387 		goto exit;
    388 	}
    389 	rule->obj = (struct cil_class*)obj_datum;
    390 
    391 	rc = cil_resolve_name(current, rule->result_str, CIL_SYM_TYPES, extra_args, &result_datum);
    392 	if (rc != SEPOL_OK) {
    393 		goto exit;
    394 	}
    395 
    396 	result_node = result_datum->nodes->head->data;
    397 
    398 	if (result_node->flavor != CIL_TYPE) {
    399 		cil_log(CIL_ERR, "Type rule result must be a type [%d]\n",result_node->flavor);
    400 		rc = SEPOL_ERR;
    401 		goto exit;
    402 	}
    403 	rule->result = result_datum;
    404 
    405 	return SEPOL_OK;
    406 
    407 exit:
    408 	return rc;
    409 }
    410 
    411 int cil_resolve_typeattributeset(struct cil_tree_node *current, void *extra_args)
    412 {
    413 	struct cil_typeattributeset *attrtypes = current->data;
    414 	struct cil_symtab_datum *attr_datum = NULL;
    415 	struct cil_tree_node *attr_node = NULL;
    416 	struct cil_typeattribute *attr = NULL;
    417 	int rc = SEPOL_ERR;
    418 
    419 	rc = cil_resolve_name(current, attrtypes->attr_str, CIL_SYM_TYPES, extra_args, &attr_datum);
    420 	if (rc != SEPOL_OK) {
    421 		goto exit;
    422 	}
    423 
    424 	attr_node = attr_datum->nodes->head->data;
    425 
    426 	if (attr_node->flavor != CIL_TYPEATTRIBUTE) {
    427 		rc = SEPOL_ERR;
    428 		cil_log(CIL_ERR, "Attribute type not an attribute\n");
    429 		goto exit;
    430 	}
    431 
    432 	attr = (struct cil_typeattribute*)attr_datum;
    433 
    434 	rc = cil_resolve_expr(CIL_TYPEATTRIBUTESET, attrtypes->str_expr, &attrtypes->datum_expr, current, extra_args);
    435 	if (rc != SEPOL_OK) {
    436 		goto exit;
    437 	}
    438 
    439 	rc = cil_verify_no_self_reference(attr_datum, attrtypes->datum_expr);
    440 	if (rc != SEPOL_OK) {
    441 		goto exit;
    442 	}
    443 
    444 	if (attr->expr_list == NULL) {
    445 		cil_list_init(&attr->expr_list, CIL_TYPEATTRIBUTE);
    446 	}
    447 
    448 	cil_list_append(attr->expr_list, CIL_LIST, attrtypes->datum_expr);
    449 
    450 	return SEPOL_OK;
    451 
    452 exit:
    453 	return rc;
    454 }
    455 
    456 int cil_resolve_aliasactual(struct cil_tree_node *current, void *extra_args, enum cil_flavor flavor, enum cil_flavor alias_flavor)
    457 {
    458 	int rc = SEPOL_ERR;
    459 	enum cil_sym_index sym_index;
    460 	struct cil_aliasactual *aliasactual = current->data;
    461 	struct cil_symtab_datum *alias_datum = NULL;
    462 	struct cil_symtab_datum *actual_datum = NULL;
    463 	struct cil_alias *alias;
    464 
    465 	rc = cil_flavor_to_symtab_index(flavor, &sym_index);
    466 	if (rc != SEPOL_OK) {
    467 		goto exit;
    468 	}
    469 
    470 	rc = cil_resolve_name(current, aliasactual->alias_str, sym_index, extra_args, &alias_datum);
    471 	if (rc != SEPOL_OK) {
    472 		goto exit;
    473 	}
    474 	if (NODE(alias_datum)->flavor != alias_flavor) {
    475 		cil_log(CIL_ERR, "%s is not an alias\n",alias_datum->name);
    476 		goto exit;
    477 	}
    478 
    479 	rc = cil_resolve_name(current, aliasactual->actual_str, sym_index, extra_args, &actual_datum);
    480 	if (rc != SEPOL_OK) {
    481 		goto exit;
    482 	}
    483 
    484 	alias = (struct cil_alias *)alias_datum;
    485 
    486 	if (alias->actual != NULL) {
    487 		cil_log(CIL_ERR, "Alias cannot bind more than one value\n");
    488 		rc = SEPOL_ERR;
    489 		goto exit;
    490 	}
    491 
    492 	alias->actual = actual_datum;
    493 
    494 	return SEPOL_OK;
    495 
    496 exit:
    497 	return rc;
    498 }
    499 
    500 int cil_resolve_alias_to_actual(struct cil_tree_node *current, enum cil_flavor flavor)
    501 {
    502 	struct cil_alias *alias = current->data;
    503 	struct cil_alias *a1 = current->data;
    504 	struct cil_alias *a2 = current->data;
    505 	struct cil_tree_node *a1_node = NULL;
    506 	int steps = 0;
    507 	int limit = 2;
    508 
    509 	if (alias->actual == NULL) {
    510 		cil_tree_log(current, CIL_ERR, "Alias declared but not used");
    511 		return SEPOL_ERR;
    512 	}
    513 
    514 	a1_node = a1->datum.nodes->head->data;
    515 
    516 	while (flavor != a1_node->flavor) {
    517 		a1 = a1->actual;
    518 		a1_node = a1->datum.nodes->head->data;
    519 		steps += 1;
    520 
    521 		if (a1 == a2) {
    522 			cil_log(CIL_ERR, "Circular alias found: %s ", a1->datum.name);
    523 			a1 = a1->actual;
    524 			while (a1 != a2) {
    525 				cil_log(CIL_ERR, "%s ", a1->datum.name);
    526 				a1 = a1->actual;
    527 			}
    528 			cil_log(CIL_ERR,"\n");
    529 			return SEPOL_ERR;
    530 		}
    531 
    532 		if (steps == limit) {
    533 			steps = 0;
    534 			limit *= 2;
    535 			a2 = a1;
    536 		}
    537 	}
    538 
    539 	alias->actual = a1;
    540 
    541 	return SEPOL_OK;
    542 }
    543 
    544 int cil_resolve_typepermissive(struct cil_tree_node *current, void *extra_args)
    545 {
    546 	struct cil_typepermissive *typeperm = current->data;
    547 	struct cil_symtab_datum *type_datum = NULL;
    548 	struct cil_tree_node *type_node = NULL;
    549 	int rc = SEPOL_ERR;
    550 
    551 	rc = cil_resolve_name(current, typeperm->type_str, CIL_SYM_TYPES, extra_args, &type_datum);
    552 	if (rc != SEPOL_OK) {
    553 		goto exit;
    554 	}
    555 
    556 	type_node = type_datum->nodes->head->data;
    557 
    558 	if (type_node->flavor != CIL_TYPE && type_node->flavor != CIL_TYPEALIAS) {
    559 		cil_log(CIL_ERR, "Typepermissive must be a type or type alias\n");
    560 		rc = SEPOL_ERR;
    561 		goto exit;
    562 	}
    563 
    564 	typeperm->type = type_datum;
    565 
    566 	return SEPOL_OK;
    567 
    568 exit:
    569 	return rc;
    570 }
    571 
    572 int cil_resolve_nametypetransition(struct cil_tree_node *current, void *extra_args)
    573 {
    574 	struct cil_args_resolve *args = extra_args;
    575 	struct cil_nametypetransition *nametypetrans = current->data;
    576 	struct cil_symtab_datum *src_datum = NULL;
    577 	struct cil_symtab_datum *tgt_datum = NULL;
    578 	struct cil_symtab_datum *obj_datum = NULL;
    579 	struct cil_symtab_datum *name_datum = NULL;
    580 	struct cil_symtab_datum *result_datum = NULL;
    581 	struct cil_tree_node *result_node = NULL;
    582 	int rc = SEPOL_ERR;
    583 
    584 	rc = cil_resolve_name(current, nametypetrans->src_str, CIL_SYM_TYPES, extra_args, &src_datum);
    585 	if (rc != SEPOL_OK) {
    586 		goto exit;
    587 	}
    588 	nametypetrans->src = src_datum;
    589 
    590 	rc = cil_resolve_name(current, nametypetrans->tgt_str, CIL_SYM_TYPES, extra_args, &tgt_datum);
    591 	if (rc != SEPOL_OK) {
    592 		goto exit;
    593 	}
    594 	nametypetrans->tgt = tgt_datum;
    595 
    596 	rc = cil_resolve_name(current, nametypetrans->obj_str, CIL_SYM_CLASSES, extra_args, &obj_datum);
    597 	if (rc != SEPOL_OK) {
    598 		goto exit;
    599 	}
    600 	nametypetrans->obj = (struct cil_class*)obj_datum;
    601 
    602 	nametypetrans->name = __cil_insert_name(args->db, nametypetrans->name_str, current);
    603 	if (nametypetrans->name == NULL) {
    604 		rc = cil_resolve_name(current, nametypetrans->name_str, CIL_SYM_NAMES, extra_args, &name_datum);
    605 		if (rc != SEPOL_OK) {
    606 			goto exit;
    607 		}
    608 		nametypetrans->name = (struct cil_name *)name_datum;
    609 	}
    610 
    611 	rc = cil_resolve_name(current, nametypetrans->result_str, CIL_SYM_TYPES, extra_args, &result_datum);
    612 	if (rc != SEPOL_OK) {
    613 		goto exit;
    614 	}
    615 
    616 	result_node = result_datum->nodes->head->data;
    617 
    618 	if (result_node->flavor != CIL_TYPE && result_node->flavor != CIL_TYPEALIAS) {
    619 		cil_log(CIL_ERR, "typetransition result is not a type or type alias\n");
    620 		rc = SEPOL_ERR;
    621 		goto exit;
    622 	}
    623 	nametypetrans->result = result_datum;
    624 
    625 	return SEPOL_OK;
    626 
    627 exit:
    628 	return rc;
    629 }
    630 
    631 int cil_resolve_rangetransition(struct cil_tree_node *current, void *extra_args)
    632 {
    633 	struct cil_rangetransition *rangetrans = current->data;
    634 	struct cil_symtab_datum *src_datum = NULL;
    635 	struct cil_symtab_datum *exec_datum = NULL;
    636 	struct cil_symtab_datum *obj_datum = NULL;
    637 	struct cil_symtab_datum *range_datum = NULL;
    638 	int rc = SEPOL_ERR;
    639 
    640 	rc = cil_resolve_name(current, rangetrans->src_str, CIL_SYM_TYPES, extra_args, &src_datum);
    641 	if (rc != SEPOL_OK) {
    642 		goto exit;
    643 	}
    644 	rangetrans->src = src_datum;
    645 
    646 	rc = cil_resolve_name(current, rangetrans->exec_str, CIL_SYM_TYPES, extra_args, &exec_datum);
    647 	if (rc != SEPOL_OK) {
    648 		goto exit;
    649 	}
    650 	rangetrans->exec = exec_datum;
    651 
    652 	rc = cil_resolve_name(current, rangetrans->obj_str, CIL_SYM_CLASSES, extra_args, &obj_datum);
    653 	if (rc != SEPOL_OK) {
    654 		goto exit;
    655 	}
    656 	rangetrans->obj = (struct cil_class*)obj_datum;
    657 
    658 	if (rangetrans->range_str != NULL) {
    659 		rc = cil_resolve_name(current, rangetrans->range_str, CIL_SYM_LEVELRANGES, extra_args, &range_datum);
    660 		if (rc != SEPOL_OK) {
    661 			goto exit;
    662 		}
    663 		rangetrans->range = (struct cil_levelrange*)range_datum;
    664 
    665 		/* This could still be an anonymous levelrange even if range_str is set, if range_str is a param_str*/
    666 		if (rangetrans->range->datum.name == NULL) {
    667 			rc = cil_resolve_levelrange(current, rangetrans->range, extra_args);
    668 			if (rc != SEPOL_OK) {
    669 				goto exit;
    670 			}
    671 		}
    672 	} else {
    673 		rc = cil_resolve_levelrange(current, rangetrans->range, extra_args);
    674 		if (rc != SEPOL_OK) {
    675 			goto exit;
    676 		}
    677 	}
    678 
    679 	return SEPOL_OK;
    680 
    681 exit:
    682 	return rc;
    683 }
    684 
    685 int __class_update_perm_values(__attribute__((unused)) hashtab_key_t k, hashtab_datum_t d, void *args)
    686 {
    687 	struct cil_perm *perm = (struct cil_perm *)d;
    688 
    689 	perm->value += *((int *)args);
    690 
    691 	return SEPOL_OK;
    692 }
    693 
    694 int cil_resolve_classcommon(struct cil_tree_node *current, void *extra_args)
    695 {
    696 	struct cil_class *class = NULL;
    697 	struct cil_class *common = NULL;
    698 	struct cil_classcommon *clscom = current->data;
    699 	struct cil_symtab_datum *class_datum = NULL;
    700 	struct cil_symtab_datum *common_datum = NULL;
    701 	int rc = SEPOL_ERR;
    702 
    703 	rc = cil_resolve_name(current, clscom->class_str, CIL_SYM_CLASSES, extra_args, &class_datum);
    704 	if (rc != SEPOL_OK) {
    705 		goto exit;
    706 	}
    707 
    708 	rc = cil_resolve_name(current, clscom->common_str, CIL_SYM_COMMONS, extra_args, &common_datum);
    709 	if (rc != SEPOL_OK) {
    710 		goto exit;
    711 	}
    712 
    713 	class = (struct cil_class *)class_datum;
    714 	common = (struct cil_class *)common_datum;
    715 	if (class->common != NULL) {
    716 		cil_log(CIL_ERR, "class cannot be associeated with more than one common\n");
    717 		rc = SEPOL_ERR;
    718 		goto exit;
    719 	}
    720 
    721 	class->common = common;
    722 
    723 	cil_symtab_map(&class->perms, __class_update_perm_values, &common->num_perms);
    724 
    725 	class->num_perms += common->num_perms;
    726 	if (class->num_perms > CIL_PERMS_PER_CLASS) {
    727 		cil_tree_log(current, CIL_ERR, "Too many permissions in class '%s' when including common permissions", class->datum.name);
    728 		goto exit;
    729 	}
    730 
    731 	return SEPOL_OK;
    732 
    733 exit:
    734 	return rc;
    735 }
    736 
    737 int cil_resolve_classmapping(struct cil_tree_node *current, void *extra_args)
    738 {
    739 	int rc = SEPOL_ERR;
    740 	struct cil_classmapping *mapping = current->data;
    741 	struct cil_class *map = NULL;
    742 	struct cil_perm *mp = NULL;
    743 	struct cil_symtab_datum *datum = NULL;
    744 	struct cil_list_item *curr;
    745 
    746 	rc = cil_resolve_name(current, mapping->map_class_str, CIL_SYM_CLASSES, extra_args, &datum);
    747 	if (rc != SEPOL_OK) {
    748 		goto exit;
    749 	}
    750 	map = (struct cil_class*)datum;
    751 
    752 	rc = cil_symtab_get_datum(&map->perms, mapping->map_perm_str, &datum);
    753 	if (rc != SEPOL_OK) {
    754 		goto exit;
    755 	}
    756 
    757 	mp = (struct cil_perm*)datum;
    758 
    759 	rc = cil_resolve_classperms_list(current, mapping->classperms, extra_args);
    760 	if (rc != SEPOL_OK) {
    761 		goto exit;
    762 	}
    763 
    764 	if (mp->classperms == NULL) {
    765 		cil_list_init(&mp->classperms, CIL_CLASSPERMS);
    766 	}
    767 
    768 	cil_list_for_each(curr, mapping->classperms) {
    769 		cil_list_append(mp->classperms, curr->flavor, curr->data);
    770 	}
    771 
    772 	return SEPOL_OK;
    773 
    774 exit:
    775 	return rc;
    776 }
    777 
    778 int cil_resolve_userrole(struct cil_tree_node *current, void *extra_args)
    779 {
    780 	struct cil_userrole *userrole = current->data;
    781 	struct cil_symtab_datum *user_datum = NULL;
    782 	struct cil_symtab_datum *role_datum = NULL;
    783 	int rc = SEPOL_ERR;
    784 
    785 	rc = cil_resolve_name(current, userrole->user_str, CIL_SYM_USERS, extra_args, &user_datum);
    786 	if (rc != SEPOL_OK) {
    787 		goto exit;
    788 	}
    789 	userrole->user = (struct cil_user*)user_datum;
    790 
    791 	rc = cil_resolve_name(current, userrole->role_str, CIL_SYM_ROLES, extra_args, &role_datum);
    792 	if (rc != SEPOL_OK) {
    793 		goto exit;
    794 	}
    795 	userrole->role = role_datum;
    796 
    797 	return SEPOL_OK;
    798 
    799 exit:
    800 	return rc;
    801 }
    802 
    803 int cil_resolve_userlevel(struct cil_tree_node *current, void *extra_args)
    804 {
    805 	struct cil_userlevel *usrlvl = current->data;
    806 	struct cil_symtab_datum *user_datum = NULL;
    807 	struct cil_symtab_datum *lvl_datum = NULL;
    808 	struct cil_user *user = NULL;
    809 	struct cil_tree_node *user_node = NULL;
    810 	int rc = SEPOL_ERR;
    811 
    812 	rc = cil_resolve_name(current, usrlvl->user_str, CIL_SYM_USERS, extra_args, &user_datum);
    813 	if (rc != SEPOL_OK) {
    814 		goto exit;
    815 	}
    816 
    817 	user_node = user_datum->nodes->head->data;
    818 
    819 	if (user_node->flavor != CIL_USER) {
    820 		cil_log(CIL_ERR, "Userlevel must be a user\n");
    821 		rc = SEPOL_ERR;
    822 		goto exit;
    823 	}
    824 
    825 	user = (struct cil_user*)user_datum;
    826 
    827 	if (usrlvl->level_str != NULL) {
    828 		rc = cil_resolve_name(current, usrlvl->level_str, CIL_SYM_LEVELS, extra_args, &lvl_datum);
    829 		if (rc != SEPOL_OK) {
    830 			goto exit;
    831 		}
    832 		usrlvl->level = (struct cil_level*)lvl_datum;
    833 		user->dftlevel = usrlvl->level;
    834 
    835 		/* This could still be an anonymous level even if level_str is set, if level_str is a param_str*/
    836 		if (user->dftlevel->datum.name == NULL) {
    837 			rc = cil_resolve_level(current, user->dftlevel, extra_args);
    838 			if (rc != SEPOL_OK) {
    839 				goto exit;
    840 			}
    841 		}
    842 	} else if (usrlvl->level != NULL) {
    843 		rc = cil_resolve_level(current, usrlvl->level, extra_args);
    844 		if (rc != SEPOL_OK) {
    845 			goto exit;
    846 		}
    847 		user->dftlevel = usrlvl->level;
    848 	}
    849 
    850 	return SEPOL_OK;
    851 
    852 exit:
    853 	return rc;
    854 }
    855 
    856 int cil_resolve_userrange(struct cil_tree_node *current, void *extra_args)
    857 {
    858 	struct cil_userrange *userrange = current->data;
    859 	struct cil_symtab_datum *user_datum = NULL;
    860 	struct cil_symtab_datum *range_datum = NULL;
    861 	struct cil_user *user = NULL;
    862 	struct cil_tree_node *user_node = NULL;
    863 	int rc = SEPOL_ERR;
    864 
    865 	rc = cil_resolve_name(current, userrange->user_str, CIL_SYM_USERS, extra_args, &user_datum);
    866 	if (rc != SEPOL_OK) {
    867 		goto exit;
    868 	}
    869 
    870 	user_node = user_datum->nodes->head->data;
    871 
    872 	if (user_node->flavor != CIL_USER) {
    873 		cil_log(CIL_ERR, "Userrange must be a user: %s\n", user_datum->fqn);
    874 		rc = SEPOL_ERR;
    875 		goto exit;
    876 	}
    877 
    878 	user = (struct cil_user*)user_datum;
    879 
    880 	if (userrange->range_str != NULL) {
    881 		rc = cil_resolve_name(current, userrange->range_str, CIL_SYM_LEVELRANGES, extra_args, &range_datum);
    882 		if (rc != SEPOL_OK) {
    883 			goto exit;
    884 		}
    885 		userrange->range = (struct cil_levelrange*)range_datum;
    886 		user->range = userrange->range;
    887 
    888 		/* This could still be an anonymous levelrange even if levelrange_str is set, if levelrange_str is a param_str*/
    889 		if (user->range->datum.name == NULL) {
    890 			rc = cil_resolve_levelrange(current, user->range, extra_args);
    891 			if (rc != SEPOL_OK) {
    892 				goto exit;
    893 			}
    894 		}
    895 	} else if (userrange->range != NULL) {
    896 		rc = cil_resolve_levelrange(current, userrange->range, extra_args);
    897 		if (rc != SEPOL_OK) {
    898 			goto exit;
    899 		}
    900 		user->range = userrange->range;
    901 	}
    902 
    903 	return SEPOL_OK;
    904 
    905 exit:
    906 	return rc;
    907 }
    908 
    909 int cil_resolve_userprefix(struct cil_tree_node *current, void *extra_args)
    910 {
    911 	struct cil_userprefix *userprefix = current->data;
    912 	struct cil_symtab_datum *user_datum = NULL;
    913 	struct cil_tree_node *user_node = NULL;
    914 	int rc = SEPOL_ERR;
    915 
    916 	rc = cil_resolve_name(current, userprefix->user_str, CIL_SYM_USERS, extra_args, &user_datum);
    917 	if (rc != SEPOL_OK) {
    918 		goto exit;
    919 	}
    920 
    921 	user_node = user_datum->nodes->head->data;
    922 
    923 	if (user_node->flavor != CIL_USER) {
    924 		cil_log(CIL_ERR, "Userprefix must be a user: %s\n", user_datum->fqn);
    925 		rc = SEPOL_ERR;
    926 		goto exit;
    927 	}
    928 
    929 	userprefix->user = (struct cil_user*)user_datum;
    930 
    931 exit:
    932 	return rc;
    933 }
    934 
    935 int cil_resolve_selinuxuser(struct cil_tree_node *current, void *extra_args)
    936 {
    937 	struct cil_selinuxuser *selinuxuser = current->data;
    938 	struct cil_symtab_datum *user_datum = NULL;
    939 	struct cil_symtab_datum *lvlrange_datum = NULL;
    940 	struct cil_tree_node *user_node = NULL;
    941 	int rc = SEPOL_ERR;
    942 
    943 	rc = cil_resolve_name(current, selinuxuser->user_str, CIL_SYM_USERS, extra_args, &user_datum);
    944 	if (rc != SEPOL_OK) {
    945 		goto exit;
    946 	}
    947 
    948 	user_node = user_datum->nodes->head->data;
    949 
    950 	if (user_node->flavor != CIL_USER) {
    951 		cil_log(CIL_ERR, "Selinuxuser must be a user: %s\n", user_datum->fqn);
    952 		rc = SEPOL_ERR;
    953 		goto exit;
    954 	}
    955 
    956 	selinuxuser->user = (struct cil_user*)user_datum;
    957 
    958 	if (selinuxuser->range_str != NULL) {
    959 		rc = cil_resolve_name(current, selinuxuser->range_str, CIL_SYM_LEVELRANGES, extra_args, &lvlrange_datum);
    960 		if (rc != SEPOL_OK) {
    961 			goto exit;
    962 		}
    963 		selinuxuser->range = (struct cil_levelrange*)lvlrange_datum;
    964 
    965 		/* This could still be an anonymous levelrange even if range_str is set, if range_str is a param_str*/
    966 		if (selinuxuser->range->datum.name == NULL) {
    967 			rc = cil_resolve_levelrange(current, selinuxuser->range, extra_args);
    968 			if (rc != SEPOL_OK) {
    969 				goto exit;
    970 			}
    971 		}
    972 	} else if (selinuxuser->range != NULL) {
    973 		rc = cil_resolve_levelrange(current, selinuxuser->range, extra_args);
    974 		if (rc != SEPOL_OK) {
    975 			goto exit;
    976 		}
    977 	}
    978 
    979 	rc = SEPOL_OK;
    980 exit:
    981 	return rc;
    982 }
    983 
    984 int cil_resolve_roletype(struct cil_tree_node *current, void *extra_args)
    985 {
    986 	struct cil_roletype *roletype = current->data;
    987 	struct cil_symtab_datum *role_datum = NULL;
    988 	struct cil_symtab_datum *type_datum = NULL;
    989 	int rc = SEPOL_ERR;
    990 
    991 	rc = cil_resolve_name(current, roletype->role_str, CIL_SYM_ROLES, extra_args, &role_datum);
    992 	if (rc != SEPOL_OK) {
    993 		goto exit;
    994 	}
    995 	roletype->role = (struct cil_role*)role_datum;
    996 
    997 	rc = cil_resolve_name(current, roletype->type_str, CIL_SYM_TYPES, extra_args, &type_datum);
    998 	if (rc != SEPOL_OK) {
    999 		goto exit;
   1000 	}
   1001 	roletype->type = (struct cil_type*)type_datum;
   1002 
   1003 	return SEPOL_OK;
   1004 
   1005 exit:
   1006 	return rc;
   1007 }
   1008 
   1009 int cil_resolve_roletransition(struct cil_tree_node *current, void *extra_args)
   1010 {
   1011 	struct cil_roletransition *roletrans = current->data;
   1012 	struct cil_symtab_datum *src_datum = NULL;
   1013 	struct cil_symtab_datum *tgt_datum = NULL;
   1014 	struct cil_symtab_datum *obj_datum = NULL;
   1015 	struct cil_symtab_datum *result_datum = NULL;
   1016 	struct cil_tree_node *node = NULL;
   1017 	int rc = SEPOL_ERR;
   1018 
   1019 	rc = cil_resolve_name(current, roletrans->src_str, CIL_SYM_ROLES, extra_args, &src_datum);
   1020 	if (rc != SEPOL_OK) {
   1021 		goto exit;
   1022 	}
   1023 	roletrans->src = (struct cil_role*)src_datum;
   1024 
   1025 	rc = cil_resolve_name(current, roletrans->tgt_str, CIL_SYM_TYPES, extra_args, &tgt_datum);
   1026 	if (rc != SEPOL_OK) {
   1027 		goto exit;
   1028 	}
   1029 	roletrans->tgt = tgt_datum;
   1030 
   1031 	rc = cil_resolve_name(current, roletrans->obj_str, CIL_SYM_CLASSES, extra_args, &obj_datum);
   1032 	if (rc != SEPOL_OK) {
   1033 		goto exit;
   1034 	}
   1035 	roletrans->obj = (struct cil_class*)obj_datum;
   1036 
   1037 	rc = cil_resolve_name(current, roletrans->result_str, CIL_SYM_ROLES, extra_args, &result_datum);
   1038 	if (rc != SEPOL_OK) {
   1039 		goto exit;
   1040 	}
   1041 	node = result_datum->nodes->head->data;
   1042 	if (node->flavor != CIL_ROLE) {
   1043 		rc = SEPOL_ERR;
   1044 		printf("%i\n", node->flavor);
   1045 		cil_log(CIL_ERR, "roletransition must result in a role, but %s is a %s\n", roletrans->result_str, cil_node_to_string(node));
   1046 		goto exit;
   1047 	}
   1048 	roletrans->result = (struct cil_role*)result_datum;
   1049 
   1050 	return SEPOL_OK;
   1051 
   1052 exit:
   1053 	return rc;
   1054 }
   1055 
   1056 int cil_resolve_roleallow(struct cil_tree_node *current, void *extra_args)
   1057 {
   1058 	struct cil_roleallow *roleallow = current->data;
   1059 	struct cil_symtab_datum *src_datum = NULL;
   1060 	struct cil_symtab_datum *tgt_datum = NULL;
   1061 	int rc = SEPOL_ERR;
   1062 
   1063 	rc = cil_resolve_name(current, roleallow->src_str, CIL_SYM_ROLES, extra_args, &src_datum);
   1064 	if (rc != SEPOL_OK) {
   1065 		goto exit;
   1066 	}
   1067 	roleallow->src = (struct cil_role*)src_datum;
   1068 
   1069 	rc = cil_resolve_name(current, roleallow->tgt_str, CIL_SYM_ROLES, extra_args, &tgt_datum);
   1070 	if (rc != SEPOL_OK) {
   1071 		goto exit;
   1072 	}
   1073 	roleallow->tgt = (struct cil_role*)tgt_datum;
   1074 
   1075 	return SEPOL_OK;
   1076 
   1077 exit:
   1078 	return rc;
   1079 }
   1080 
   1081 int cil_resolve_roleattributeset(struct cil_tree_node *current, void *extra_args)
   1082 {
   1083 	int rc = SEPOL_ERR;
   1084 	struct cil_roleattributeset *attrroles = current->data;
   1085 	struct cil_symtab_datum *attr_datum = NULL;
   1086 	struct cil_tree_node *attr_node = NULL;
   1087 	struct cil_roleattribute *attr = NULL;
   1088 
   1089 	rc = cil_resolve_name(current, attrroles->attr_str, CIL_SYM_ROLES, extra_args, &attr_datum);
   1090 	if (rc != SEPOL_OK) {
   1091 		goto exit;
   1092 	}
   1093 	attr_node = attr_datum->nodes->head->data;
   1094 
   1095 	if (attr_node->flavor != CIL_ROLEATTRIBUTE) {
   1096 		rc = SEPOL_ERR;
   1097 		cil_log(CIL_ERR, "Attribute role not an attribute\n");
   1098 		goto exit;
   1099 	}
   1100 	attr = (struct cil_roleattribute*)attr_datum;
   1101 
   1102 	rc = cil_resolve_expr(CIL_ROLEATTRIBUTESET, attrroles->str_expr, &attrroles->datum_expr, current, extra_args);
   1103 	if (rc != SEPOL_OK) {
   1104 		goto exit;
   1105 	}
   1106 
   1107 	rc = cil_verify_no_self_reference(attr_datum, attrroles->datum_expr);
   1108 	if (rc != SEPOL_OK) {
   1109 		goto exit;
   1110 	}
   1111 
   1112 	if (attr->expr_list == NULL) {
   1113 		cil_list_init(&attr->expr_list, CIL_ROLEATTRIBUTE);
   1114 	}
   1115 
   1116 	cil_list_append(attr->expr_list, CIL_LIST, attrroles->datum_expr);
   1117 
   1118 	return SEPOL_OK;
   1119 
   1120 exit:
   1121 	return rc;
   1122 }
   1123 
   1124 struct cil_ordered_list {
   1125 	int merged;
   1126 	struct cil_list *list;
   1127 	struct cil_tree_node *node;
   1128 };
   1129 
   1130 void __cil_ordered_list_init(struct cil_ordered_list **ordered)
   1131 {
   1132 	*ordered = cil_malloc(sizeof(**ordered));
   1133 
   1134 	(*ordered)->merged = CIL_FALSE;
   1135 	(*ordered)->list = NULL;
   1136 	(*ordered)->node = NULL;
   1137 }
   1138 
   1139 void __cil_ordered_list_destroy(struct cil_ordered_list **ordered)
   1140 {
   1141 	cil_list_destroy(&(*ordered)->list, CIL_FALSE);
   1142 	(*ordered)->node = NULL;
   1143 	free(*ordered);
   1144 	*ordered = NULL;
   1145 }
   1146 
   1147 void __cil_ordered_lists_destroy(struct cil_list **ordered_lists)
   1148 {
   1149 	struct cil_list_item *item = NULL;
   1150 
   1151 	if (ordered_lists == NULL || *ordered_lists == NULL) {
   1152 		return;
   1153 	}
   1154 
   1155 	item = (*ordered_lists)->head;
   1156 	while (item != NULL) {
   1157 		struct cil_list_item *next = item->next;
   1158 		struct cil_ordered_list *ordered = item->data;
   1159 		__cil_ordered_list_destroy(&ordered);
   1160 		free(item);
   1161 		item = next;
   1162 	}
   1163 	free(*ordered_lists);
   1164 	*ordered_lists = NULL;
   1165 }
   1166 
   1167 void __cil_ordered_lists_reset(struct cil_list **ordered_lists)
   1168 {
   1169 	__cil_ordered_lists_destroy(ordered_lists);
   1170 	cil_list_init(ordered_lists, CIL_LIST_ITEM);
   1171 }
   1172 
   1173 struct cil_list_item *__cil_ordered_item_insert(struct cil_list *old, struct cil_list_item *curr, struct cil_list_item *item)
   1174 {
   1175 	if (item->flavor == CIL_SID) {
   1176 		struct cil_sid *sid = item->data;
   1177 		if (sid->ordered == CIL_TRUE) {
   1178 			cil_log(CIL_ERR, "SID %s has already been merged into the ordered list\n", sid->datum.name);
   1179 			return NULL;
   1180 		}
   1181 		sid->ordered = CIL_TRUE;
   1182 	} else if (item->flavor == CIL_CLASS) {
   1183 		struct cil_class *class = item->data;
   1184 		if (class->ordered == CIL_TRUE) {
   1185 			cil_log(CIL_ERR, "Class %s has already been merged into the ordered list\n", class->datum.name);
   1186 			return NULL;
   1187 		}
   1188 		class->ordered = CIL_TRUE;
   1189 	} else if (item->flavor == CIL_CAT) {
   1190 		struct cil_cat *cat = item->data;
   1191 		if (cat->ordered == CIL_TRUE) {
   1192 			cil_log(CIL_ERR, "Category %s has already been merged into the ordered list\n", cat->datum.name);
   1193 			return NULL;
   1194 		}
   1195 		cat->ordered = CIL_TRUE;
   1196 	} else if (item->flavor == CIL_SENS) {
   1197 		struct cil_sens *sens = item->data;
   1198 		if (sens->ordered == CIL_TRUE) {
   1199 			cil_log(CIL_ERR, "Sensitivity %s has already been merged into the ordered list\n", sens->datum.name);
   1200 			return NULL;
   1201 		}
   1202 		sens->ordered = CIL_TRUE;
   1203 	}
   1204 
   1205 	return cil_list_insert(old, curr, item->flavor, item->data);
   1206 }
   1207 
   1208 int __cil_ordered_list_insert(struct cil_list *old, struct cil_list_item *ocurr, struct cil_list_item *nstart, struct cil_list_item *nstop)
   1209 {
   1210 	struct cil_list_item *ncurr = NULL;
   1211 
   1212 	for (ncurr = nstart; ncurr != nstop; ncurr = ncurr->next) {
   1213 		ocurr = __cil_ordered_item_insert(old, ocurr, ncurr);
   1214 		if (ocurr == NULL) {
   1215 			return SEPOL_ERR;
   1216 		}
   1217 	}
   1218 	return SEPOL_OK;
   1219 }
   1220 
   1221 struct cil_list_item *__cil_ordered_find_match(struct cil_list_item *t, struct cil_list_item *i)
   1222 {
   1223 	while (i) {
   1224 		if (i->data == t->data) {
   1225 			return i;
   1226 		}
   1227 		i = i->next;
   1228 	}
   1229 	return NULL;
   1230 }
   1231 
   1232 int __cil_ordered_lists_merge(struct cil_list *old, struct cil_list *new)
   1233 {
   1234 	struct cil_list_item *omatch = NULL;
   1235 	struct cil_list_item *ofirst = old->head;
   1236 	struct cil_list_item *ocurr = NULL;
   1237 	struct cil_list_item *oprev = NULL;
   1238 	struct cil_list_item *nmatch = NULL;
   1239 	struct cil_list_item *nfirst = new->head;
   1240 	struct cil_list_item *ncurr = NULL;
   1241 	int rc = SEPOL_ERR;
   1242 
   1243 	if (nfirst == NULL) {
   1244 		return SEPOL_OK;
   1245 	}
   1246 
   1247 	if (ofirst == NULL) {
   1248 		/* First list added */
   1249 		rc = __cil_ordered_list_insert(old, NULL, nfirst, NULL);
   1250 		return rc;
   1251 	}
   1252 
   1253 	/* Find a match between the new list and the old one */
   1254 	for (nmatch = nfirst; nmatch; nmatch = nmatch->next) {
   1255 		omatch = __cil_ordered_find_match(nmatch, ofirst);
   1256 		if (omatch) {
   1257 			break;
   1258 		}
   1259 	}
   1260 
   1261 	if (!nmatch) {
   1262 		/* List cannot be merged yet */
   1263 		return SEPOL_ERR;
   1264 	}
   1265 
   1266 	if (nmatch != nfirst && omatch != ofirst) {
   1267 		/* Potential ordering conflict--try again later */
   1268 		return SEPOL_ERR;
   1269 	}
   1270 
   1271 	if (nmatch != nfirst) {
   1272 		/* Prepend the beginning of the new list up to the first match to the old list */
   1273 		rc = __cil_ordered_list_insert(old, NULL, nfirst, nmatch);
   1274 		if (rc != SEPOL_OK) {
   1275 			return rc;
   1276 		}
   1277 	}
   1278 
   1279 	/* In the overlapping protion, add items from the new list not in the old list */
   1280 	ncurr = nmatch->next;
   1281 	ocurr = omatch->next;
   1282 	oprev = omatch;
   1283 	while (ncurr && ocurr) {
   1284 		if (ncurr->data == ocurr->data) {
   1285 			oprev = ocurr;
   1286 			ocurr = ocurr->next;
   1287 			ncurr = ncurr->next;
   1288 		} else {
   1289 			/* Handle gap in old: old = (A C)  new = (A B C) */
   1290 			nmatch = __cil_ordered_find_match(ocurr, ncurr->next);
   1291 			if (nmatch) {
   1292 				rc = __cil_ordered_list_insert(old, oprev, ncurr, nmatch);
   1293 				if (rc != SEPOL_OK) {
   1294 					return rc;
   1295 				}
   1296 				oprev = ocurr;
   1297 				ocurr = ocurr->next;
   1298 				ncurr = nmatch->next;
   1299 				continue;
   1300 			}
   1301 			/* Handle gap in new: old = (A B C)  new = (A C) */
   1302 			omatch = __cil_ordered_find_match(ncurr, ocurr->next);
   1303 			if (omatch) {
   1304 				/* Nothing to insert, just skip */
   1305 				oprev = omatch;
   1306 				ocurr = omatch->next;
   1307 				ncurr = ncurr->next;
   1308 				continue;
   1309 			} else {
   1310 				return SEPOL_ERR;
   1311 			}
   1312 		}
   1313 	}
   1314 
   1315 	if (ncurr) {
   1316 		/* Add the rest of the items from the new list */
   1317 		rc = __cil_ordered_list_insert(old, old->tail, ncurr, NULL);
   1318 		if (rc != SEPOL_OK) {
   1319 			return rc;
   1320 		}
   1321 	}
   1322 
   1323 	return SEPOL_OK;
   1324 }
   1325 
   1326 static int insert_unordered(struct cil_list *merged, struct cil_list *unordered)
   1327 {
   1328 	struct cil_list_item *curr = NULL;
   1329 	struct cil_ordered_list *unordered_list = NULL;
   1330 	struct cil_list_item *item = NULL;
   1331 	struct cil_list_item *ret = NULL;
   1332 	int rc = SEPOL_ERR;
   1333 
   1334 	cil_list_for_each(curr, unordered) {
   1335 		unordered_list = curr->data;
   1336 
   1337 		cil_list_for_each(item, unordered_list->list) {
   1338 			if (cil_list_contains(merged, item->data)) {
   1339 				/* item was declared in an ordered statement, which supercedes
   1340 				 * all unordered statements */
   1341 				if (item->flavor == CIL_CLASS) {
   1342 					cil_log(CIL_WARN, "Ignoring '%s' as it has already been declared in classorder.\n", ((struct cil_class*)(item->data))->datum.name);
   1343 				}
   1344 				continue;
   1345 			}
   1346 
   1347 			ret = __cil_ordered_item_insert(merged, merged->tail, item);
   1348 			if (ret == NULL) {
   1349 				rc = SEPOL_ERR;
   1350 				goto exit;
   1351 			}
   1352 		}
   1353 	}
   1354 
   1355 	rc = SEPOL_OK;
   1356 
   1357 exit:
   1358 	return rc;
   1359 }
   1360 
   1361 struct cil_list *__cil_ordered_lists_merge_all(struct cil_list **ordered_lists, struct cil_list **unordered_lists)
   1362 {
   1363 	struct cil_list *composite = NULL;
   1364 	struct cil_list_item *curr = NULL;
   1365 	int changed = CIL_TRUE;
   1366 	int waiting = 1;
   1367 	int rc = SEPOL_ERR;
   1368 
   1369 	cil_list_init(&composite, CIL_LIST_ITEM);
   1370 
   1371 	while (waiting && changed == CIL_TRUE) {
   1372 		changed = CIL_FALSE;
   1373 		waiting = 0;
   1374 		cil_list_for_each(curr, *ordered_lists) {
   1375 			struct cil_ordered_list *ordered_list = curr->data;
   1376 			if (ordered_list->merged == CIL_FALSE) {
   1377 				rc = __cil_ordered_lists_merge(composite, ordered_list->list);
   1378 				if (rc != SEPOL_OK) {
   1379 					/* Can't merge yet */
   1380 					waiting++;
   1381 				} else {
   1382 					ordered_list->merged = CIL_TRUE;
   1383 					changed = CIL_TRUE;
   1384 				}
   1385 			}
   1386 		}
   1387 		if (waiting > 0 && changed == CIL_FALSE) {
   1388 			cil_list_for_each(curr, *ordered_lists) {
   1389 				struct cil_ordered_list *ordered_list = curr->data;
   1390 				if (ordered_list->merged == CIL_FALSE) {
   1391 					cil_tree_log(ordered_list->node, CIL_ERR, "Unable to merge ordered list");
   1392 				}
   1393 			}
   1394 			goto exit;
   1395 		}
   1396 	}
   1397 
   1398 	if (unordered_lists != NULL) {
   1399 		rc = insert_unordered(composite, *unordered_lists);
   1400 		if (rc != SEPOL_OK) {
   1401 			goto exit;
   1402 		}
   1403 	}
   1404 
   1405 	__cil_ordered_lists_destroy(ordered_lists);
   1406 	__cil_ordered_lists_destroy(unordered_lists);
   1407 
   1408 	return composite;
   1409 
   1410 exit:
   1411 	__cil_ordered_lists_destroy(ordered_lists);
   1412 	__cil_ordered_lists_destroy(unordered_lists);
   1413 	cil_list_destroy(&composite, CIL_FALSE);
   1414 	return NULL;
   1415 }
   1416 
   1417 int cil_resolve_classorder(struct cil_tree_node *current, void *extra_args)
   1418 {
   1419 	struct cil_args_resolve *args = extra_args;
   1420 	struct cil_list *classorder_list = args->classorder_lists;
   1421 	struct cil_list *unordered_classorder_list = args->unordered_classorder_lists;
   1422 	struct cil_classorder *classorder = current->data;
   1423 	struct cil_list *new = NULL;
   1424 	struct cil_list_item *curr = NULL;
   1425 	struct cil_symtab_datum *datum = NULL;
   1426 	struct cil_ordered_list *class_list = NULL;
   1427 	int rc = SEPOL_ERR;
   1428 	int unordered = CIL_FALSE;
   1429 
   1430 	cil_list_init(&new, CIL_CLASSORDER);
   1431 
   1432 	cil_list_for_each(curr, classorder->class_list_str) {
   1433 		if (curr->data == CIL_KEY_UNORDERED) {
   1434 			unordered = CIL_TRUE;
   1435 			continue;
   1436 		}
   1437 
   1438 		rc = cil_resolve_name(current, (char *)curr->data, CIL_SYM_CLASSES, extra_args, &datum);
   1439 		if (rc != SEPOL_OK) {
   1440 			cil_log(CIL_ERR, "Failed to resolve class %s in classorder\n", (char *)curr->data);
   1441 			goto exit;
   1442 		}
   1443 		cil_list_append(new, CIL_CLASS, datum);
   1444 	}
   1445 
   1446 	__cil_ordered_list_init(&class_list);
   1447 	class_list->list = new;
   1448 	class_list->node = current;
   1449 	if (unordered) {
   1450 		cil_list_append(unordered_classorder_list, CIL_CLASSORDER, class_list);
   1451 	} else {
   1452 		cil_list_append(classorder_list, CIL_CLASSORDER, class_list);
   1453 	}
   1454 
   1455 	return SEPOL_OK;
   1456 
   1457 exit:
   1458 	cil_list_destroy(&new, CIL_FALSE);
   1459 	return rc;
   1460 }
   1461 
   1462 int cil_resolve_sidorder(struct cil_tree_node *current, void *extra_args)
   1463 {
   1464 	struct cil_args_resolve *args = extra_args;
   1465 	struct cil_list *sidorder_list = args->sidorder_lists;
   1466 	struct cil_sidorder *sidorder = current->data;
   1467 	struct cil_list *new = NULL;
   1468 	struct cil_list_item *curr = NULL;
   1469 	struct cil_symtab_datum *datum = NULL;
   1470 	struct cil_ordered_list *ordered = NULL;
   1471 	int rc = SEPOL_ERR;
   1472 
   1473 	cil_list_init(&new, CIL_SIDORDER);
   1474 
   1475 	cil_list_for_each(curr, sidorder->sid_list_str) {
   1476 		rc = cil_resolve_name(current, (char *)curr->data, CIL_SYM_SIDS, extra_args, &datum);
   1477 		if (rc != SEPOL_OK) {
   1478 			cil_log(CIL_ERR, "Failed to resolve sid %s in sidorder\n", (char *)curr->data);
   1479 			goto exit;
   1480 		}
   1481 		cil_list_append(new, CIL_SID, datum);
   1482 	}
   1483 
   1484 	__cil_ordered_list_init(&ordered);
   1485 	ordered->list = new;
   1486 	ordered->node = current;
   1487 	cil_list_append(sidorder_list, CIL_SIDORDER, ordered);
   1488 
   1489 	return SEPOL_OK;
   1490 
   1491 exit:
   1492 	return rc;
   1493 }
   1494 
   1495 void cil_set_cat_values(struct cil_list *ordered_cats, struct cil_db *db)
   1496 {
   1497 	struct cil_list_item *curr;
   1498 	int v = 0;
   1499 
   1500 	cil_list_for_each(curr, ordered_cats) {
   1501 		struct cil_cat *cat = curr->data;
   1502 		cat->value = v;
   1503 		v++;
   1504 	}
   1505 
   1506 	db->num_cats = v;
   1507 }
   1508 
   1509 int cil_resolve_catorder(struct cil_tree_node *current, void *extra_args)
   1510 {
   1511 	struct cil_args_resolve *args = extra_args;
   1512 	struct cil_list *catorder_list = args->catorder_lists;
   1513 	struct cil_catorder *catorder = current->data;
   1514 	struct cil_list *new = NULL;
   1515 	struct cil_list_item *curr = NULL;
   1516 	struct cil_symtab_datum *cat_datum;
   1517 	struct cil_cat *cat = NULL;
   1518 	struct cil_ordered_list *ordered = NULL;
   1519 	int rc = SEPOL_ERR;
   1520 
   1521 	cil_list_init(&new, CIL_CATORDER);
   1522 
   1523 	cil_list_for_each(curr, catorder->cat_list_str) {
   1524 		struct cil_tree_node *node = NULL;
   1525 		rc = cil_resolve_name(current, (char *)curr->data, CIL_SYM_CATS, extra_args, &cat_datum);
   1526 		if (rc != SEPOL_OK) {
   1527 			cil_log(CIL_ERR, "Failed to resolve category %s in categoryorder\n", (char *)curr->data);
   1528 			goto exit;
   1529 		}
   1530 		node = cat_datum->nodes->head->data;
   1531 		if (node->flavor != CIL_CAT) {
   1532 			cil_log(CIL_ERR, "%s is not a category. Only categories are allowed in categoryorder statements\n", cat_datum->name);
   1533 			rc = SEPOL_ERR;
   1534 			goto exit;
   1535 		}
   1536 		cat = (struct cil_cat *)cat_datum;
   1537 		cil_list_append(new, CIL_CAT, cat);
   1538 	}
   1539 
   1540 	__cil_ordered_list_init(&ordered);
   1541 	ordered->list = new;
   1542 	ordered->node = current;
   1543 	cil_list_append(catorder_list, CIL_CATORDER, ordered);
   1544 
   1545 	return SEPOL_OK;
   1546 
   1547 exit:
   1548 	return rc;
   1549 }
   1550 
   1551 int cil_resolve_sensitivityorder(struct cil_tree_node *current, void *extra_args)
   1552 {
   1553 	struct cil_args_resolve *args = extra_args;
   1554 	struct cil_list *sensitivityorder_list = args->sensitivityorder_lists;
   1555 	struct cil_sensorder *sensorder = current->data;
   1556 	struct cil_list *new = NULL;
   1557 	struct cil_list_item *curr = NULL;
   1558 	struct cil_symtab_datum *datum = NULL;
   1559 	struct cil_ordered_list *ordered = NULL;
   1560 	int rc = SEPOL_ERR;
   1561 
   1562 	cil_list_init(&new, CIL_LIST_ITEM);
   1563 
   1564 	cil_list_for_each(curr, sensorder->sens_list_str) {
   1565 		rc = cil_resolve_name(current, (char *)curr->data, CIL_SYM_SENS, extra_args, &datum);
   1566 		if (rc != SEPOL_OK) {
   1567 			cil_log(CIL_ERR, "Failed to resolve sensitivty %s in sensitivityorder\n", (char *)curr->data);
   1568 			goto exit;
   1569 		}
   1570 		cil_list_append(new, CIL_SENS, datum);
   1571 	}
   1572 
   1573 	__cil_ordered_list_init(&ordered);
   1574 	ordered->list = new;
   1575 	ordered->node = current;
   1576 	cil_list_append(sensitivityorder_list, CIL_SENSITIVITYORDER, ordered);
   1577 
   1578 	return SEPOL_OK;
   1579 
   1580 exit:
   1581 	return rc;
   1582 }
   1583 
   1584 int cil_resolve_cats(struct cil_tree_node *current, struct cil_cats *cats, void *extra_args)
   1585 {
   1586 	int rc = SEPOL_ERR;
   1587 
   1588 	rc = cil_resolve_expr(CIL_CATSET, cats->str_expr, &cats->datum_expr, current, extra_args);
   1589 	if (rc != SEPOL_OK) {
   1590 		goto exit;
   1591 	}
   1592 
   1593 	return SEPOL_OK;
   1594 
   1595 exit:
   1596 	return rc;
   1597 }
   1598 
   1599 
   1600 int cil_resolve_catset(struct cil_tree_node *current, struct cil_catset *catset, void *extra_args)
   1601 {
   1602 	int rc = SEPOL_ERR;
   1603 
   1604 	rc = cil_resolve_cats(current, catset->cats, extra_args);
   1605 	if (rc != SEPOL_OK) {
   1606 		goto exit;
   1607 	}
   1608 
   1609 	rc = cil_verify_no_self_reference((struct cil_symtab_datum *)catset, catset->cats->datum_expr);
   1610 	if (rc != SEPOL_OK) {
   1611 		cil_list_destroy(&catset->cats->datum_expr, CIL_FALSE);
   1612 		goto exit;
   1613 	}
   1614 
   1615 exit:
   1616 	return rc;
   1617 }
   1618 
   1619 int cil_resolve_senscat(struct cil_tree_node *current, void *extra_args)
   1620 {
   1621 	int rc = SEPOL_ERR;
   1622 	struct cil_senscat *senscat = current->data;
   1623 	struct cil_symtab_datum *sens_datum;
   1624 	struct cil_sens *sens = NULL;
   1625 
   1626 	rc = cil_resolve_name(current, (char*)senscat->sens_str, CIL_SYM_SENS, extra_args, &sens_datum);
   1627 	if (rc != SEPOL_OK) {
   1628 		cil_log(CIL_ERR, "Failed to find sensitivity\n");
   1629 		goto exit;
   1630 	}
   1631 
   1632 	rc = cil_resolve_cats(current, senscat->cats, extra_args);
   1633 	if (rc != SEPOL_OK) {
   1634 		goto exit;
   1635 	}
   1636 
   1637 	sens = (struct cil_sens *)sens_datum;
   1638 
   1639 	if (sens->cats_list == NULL ) {
   1640 		cil_list_init(&sens->cats_list, CIL_CAT);
   1641 	}
   1642 
   1643 	cil_list_append(sens->cats_list, CIL_CAT, senscat->cats);
   1644 
   1645 	return SEPOL_OK;
   1646 
   1647 exit:
   1648 	return rc;
   1649 }
   1650 
   1651 int cil_resolve_level(struct cil_tree_node *current, struct cil_level *level, void *extra_args)
   1652 {
   1653 	struct cil_symtab_datum *sens_datum = NULL;
   1654 	int rc = SEPOL_ERR;
   1655 
   1656 	rc = cil_resolve_name(current, (char*)level->sens_str, CIL_SYM_SENS, extra_args, &sens_datum);
   1657 	if (rc != SEPOL_OK) {
   1658 		cil_log(CIL_ERR, "Failed to find sensitivity\n");
   1659 		goto exit;
   1660 	}
   1661 
   1662 	level->sens = (struct cil_sens *)sens_datum;
   1663 
   1664 	if (level->cats != NULL) {
   1665 		rc = cil_resolve_cats(current, level->cats, extra_args);
   1666 		if (rc != SEPOL_OK) {
   1667 			goto exit;
   1668 		}
   1669 	}
   1670 
   1671 	return SEPOL_OK;
   1672 
   1673 exit:
   1674 	return rc;
   1675 }
   1676 
   1677 int cil_resolve_levelrange(struct cil_tree_node *current, struct cil_levelrange *lvlrange, void *extra_args)
   1678 {
   1679 	struct cil_symtab_datum *low_datum = NULL;
   1680 	struct cil_symtab_datum *high_datum = NULL;
   1681 	int rc = SEPOL_ERR;
   1682 
   1683 	if (lvlrange->low_str != NULL) {
   1684 		rc = cil_resolve_name(current, lvlrange->low_str, CIL_SYM_LEVELS, extra_args, &low_datum);
   1685 		if (rc != SEPOL_OK) {
   1686 			goto exit;
   1687 		}
   1688 		lvlrange->low = (struct cil_level*)low_datum;
   1689 
   1690 		/* This could still be an anonymous level even if low_str is set, if low_str is a param_str */
   1691 		if (lvlrange->low->datum.name == NULL) {
   1692 			rc = cil_resolve_level(current, lvlrange->low, extra_args);
   1693 			if (rc != SEPOL_OK) {
   1694 				goto exit;
   1695 			}
   1696 		}
   1697 	} else if (lvlrange->low != NULL) {
   1698 		rc = cil_resolve_level(current, lvlrange->low, extra_args);
   1699 		if (rc != SEPOL_OK) {
   1700 			goto exit;
   1701 		}
   1702 	}
   1703 
   1704 	if (lvlrange->high_str != NULL) {
   1705 		rc = cil_resolve_name(current, lvlrange->high_str, CIL_SYM_LEVELS, extra_args, &high_datum);
   1706 		if (rc != SEPOL_OK) {
   1707 			goto exit;
   1708 		}
   1709 		lvlrange->high = (struct cil_level*)high_datum;
   1710 
   1711 		/* This could still be an anonymous level even if high_str is set, if high_str is a param_str */
   1712 		if (lvlrange->high->datum.name == NULL) {
   1713 			rc = cil_resolve_level(current, lvlrange->high, extra_args);
   1714 			if (rc != SEPOL_OK) {
   1715 				goto exit;
   1716 			}
   1717 		}
   1718 	} else if (lvlrange->high != NULL) {
   1719 		rc = cil_resolve_level(current, lvlrange->high, extra_args);
   1720 		if (rc != SEPOL_OK) {
   1721 			goto exit;
   1722 		}
   1723 	}
   1724 
   1725 	return SEPOL_OK;
   1726 
   1727 exit:
   1728 	return rc;
   1729 }
   1730 
   1731 int cil_resolve_constrain(struct cil_tree_node *current, void *extra_args)
   1732 {
   1733 	struct cil_constrain *cons = current->data;
   1734 	int rc = SEPOL_ERR;
   1735 
   1736 	rc = cil_resolve_classperms_list(current, cons->classperms, extra_args);
   1737 	if (rc != SEPOL_OK) {
   1738 		goto exit;
   1739 	}
   1740 
   1741 	rc = cil_resolve_expr(CIL_CONSTRAIN, cons->str_expr, &cons->datum_expr, current, extra_args);
   1742 	if (rc != SEPOL_OK) {
   1743 		goto exit;
   1744 	}
   1745 
   1746 	return SEPOL_OK;
   1747 
   1748 exit:
   1749 	return rc;
   1750 }
   1751 
   1752 int cil_resolve_validatetrans(struct cil_tree_node *current, void *extra_args)
   1753 {
   1754 	struct cil_validatetrans *validtrans = current->data;
   1755 	struct cil_args_resolve *args = extra_args;
   1756 	struct cil_symtab_datum *class_datum = NULL;
   1757 	int rc = SEPOL_ERR;
   1758 
   1759 	rc = cil_resolve_name(current, validtrans->class_str, CIL_SYM_CLASSES, args, &class_datum);
   1760 	if (rc != SEPOL_OK) {
   1761 		goto exit;
   1762 	}
   1763 	validtrans->class = (struct cil_class*)class_datum;
   1764 
   1765 	rc = cil_resolve_expr(CIL_VALIDATETRANS, validtrans->str_expr, &validtrans->datum_expr, current, extra_args);
   1766 	if (rc != SEPOL_OK) {
   1767 		goto exit;
   1768 	}
   1769 
   1770 	return SEPOL_OK;
   1771 
   1772 exit:
   1773 	return rc;
   1774 }
   1775 
   1776 int cil_resolve_context(struct cil_tree_node *current, struct cil_context *context, void *extra_args)
   1777 {
   1778 	struct cil_symtab_datum *user_datum = NULL;
   1779 	struct cil_symtab_datum *role_datum = NULL;
   1780 	struct cil_symtab_datum *type_datum = NULL;
   1781 	struct cil_tree_node *node = NULL;
   1782 	struct cil_symtab_datum *lvlrange_datum = NULL;
   1783 
   1784 	int rc = SEPOL_ERR;
   1785 
   1786 	rc = cil_resolve_name(current, context->user_str, CIL_SYM_USERS, extra_args, &user_datum);
   1787 	if (rc != SEPOL_OK) {
   1788 		goto exit;
   1789 	}
   1790 
   1791 	node = user_datum->nodes->head->data;
   1792 
   1793 	if (node->flavor != CIL_USER) {
   1794 		cil_log(CIL_ERR, "Context user must be a user: %s\n", user_datum->fqn);
   1795 		rc = SEPOL_ERR;
   1796 		goto exit;
   1797 	}
   1798 
   1799 	context->user = (struct cil_user*)user_datum;
   1800 
   1801 	rc = cil_resolve_name(current, context->role_str, CIL_SYM_ROLES, extra_args, &role_datum);
   1802 	if (rc != SEPOL_OK) {
   1803 		goto exit;
   1804 	}
   1805 
   1806 	node = role_datum->nodes->head->data;
   1807 	if (node->flavor != CIL_ROLE) {
   1808 		rc = SEPOL_ERR;
   1809 		cil_log(CIL_ERR, "Context role not a role: %s\n", role_datum->fqn);
   1810 		goto exit;
   1811 	}
   1812 
   1813 	context->role = (struct cil_role*)role_datum;
   1814 
   1815 	rc = cil_resolve_name(current, context->type_str, CIL_SYM_TYPES, extra_args, &type_datum);
   1816 	if (rc != SEPOL_OK) {
   1817 		goto exit;
   1818 	}
   1819 
   1820 	node = type_datum->nodes->head->data;
   1821 
   1822 	if (node->flavor != CIL_TYPE && node->flavor != CIL_TYPEALIAS) {
   1823 		rc = SEPOL_ERR;
   1824 		cil_log(CIL_ERR, "Type not a type or type alias\n");
   1825 		goto exit;
   1826 	}
   1827 	context->type = type_datum;
   1828 
   1829 	if (context->range_str != NULL) {
   1830 		rc = cil_resolve_name(current, context->range_str, CIL_SYM_LEVELRANGES, extra_args, &lvlrange_datum);
   1831 		if (rc != SEPOL_OK) {
   1832 			goto exit;
   1833 		}
   1834 		context->range = (struct cil_levelrange*)lvlrange_datum;
   1835 
   1836 		/* This could still be an anonymous levelrange even if levelrange_str is set, if levelrange_str is a param_str*/
   1837 		if (context->range->datum.name == NULL) {
   1838 			rc = cil_resolve_levelrange(current, context->range, extra_args);
   1839 			if (rc != SEPOL_OK) {
   1840 				goto exit;
   1841 			}
   1842 		}
   1843 	} else if (context->range != NULL) {
   1844 		rc = cil_resolve_levelrange(current, context->range, extra_args);
   1845 		if (rc != SEPOL_OK) {
   1846 			goto exit;
   1847 		}
   1848 	}
   1849 
   1850 	return SEPOL_OK;
   1851 
   1852 exit:
   1853 	return rc;
   1854 }
   1855 
   1856 int cil_resolve_filecon(struct cil_tree_node *current, void *extra_args)
   1857 {
   1858 	struct cil_filecon *filecon = current->data;
   1859 	struct cil_symtab_datum *context_datum = NULL;
   1860 	int rc = SEPOL_ERR;
   1861 
   1862 	if (filecon->context_str != NULL) {
   1863 		rc = cil_resolve_name(current, filecon->context_str, CIL_SYM_CONTEXTS, extra_args, &context_datum);
   1864 		if (rc != SEPOL_OK) {
   1865 			return rc;
   1866 		}
   1867 		filecon->context = (struct cil_context*)context_datum;
   1868 	} else if (filecon->context != NULL) {
   1869 		rc = cil_resolve_context(current, filecon->context, extra_args);
   1870 		if (rc != SEPOL_OK) {
   1871 			return rc;
   1872 		}
   1873 	}
   1874 
   1875 	return SEPOL_OK;
   1876 }
   1877 
   1878 int cil_resolve_portcon(struct cil_tree_node *current, void *extra_args)
   1879 {
   1880 	struct cil_portcon *portcon = current->data;
   1881 	struct cil_symtab_datum *context_datum = NULL;
   1882 	int rc = SEPOL_ERR;
   1883 
   1884 	if (portcon->context_str != NULL) {
   1885 		rc = cil_resolve_name(current, portcon->context_str, CIL_SYM_CONTEXTS, extra_args, &context_datum);
   1886 		if (rc != SEPOL_OK) {
   1887 			goto exit;
   1888 		}
   1889 		portcon->context = (struct cil_context*)context_datum;
   1890 	} else {
   1891 		rc = cil_resolve_context(current, portcon->context, extra_args);
   1892 		if (rc != SEPOL_OK) {
   1893 			goto exit;
   1894 		}
   1895 	}
   1896 
   1897 	return SEPOL_OK;
   1898 
   1899 exit:
   1900 	return rc;
   1901 }
   1902 
   1903 int cil_resolve_genfscon(struct cil_tree_node *current, void *extra_args)
   1904 {
   1905 	struct cil_genfscon *genfscon = current->data;
   1906 	struct cil_symtab_datum *context_datum = NULL;
   1907 	int rc = SEPOL_ERR;
   1908 
   1909 	if (genfscon->context_str != NULL) {
   1910 		rc = cil_resolve_name(current, genfscon->context_str, CIL_SYM_CONTEXTS, extra_args, &context_datum);
   1911 		if (rc != SEPOL_OK) {
   1912 			goto exit;
   1913 		}
   1914 		genfscon->context = (struct cil_context*)context_datum;
   1915 	} else {
   1916 		rc = cil_resolve_context(current, genfscon->context, extra_args);
   1917 		if (rc != SEPOL_OK) {
   1918 			goto exit;
   1919 		}
   1920 	}
   1921 
   1922 	return SEPOL_OK;
   1923 
   1924 exit:
   1925 	return rc;
   1926 }
   1927 
   1928 int cil_resolve_nodecon(struct cil_tree_node *current, void *extra_args)
   1929 {
   1930 	struct cil_nodecon *nodecon = current->data;
   1931 	struct cil_symtab_datum *addr_datum = NULL;
   1932 	struct cil_symtab_datum *mask_datum = NULL;
   1933 	struct cil_symtab_datum *context_datum = NULL;
   1934 	int rc = SEPOL_ERR;
   1935 
   1936 	if (nodecon->addr_str != NULL) {
   1937 		rc = cil_resolve_name(current, nodecon->addr_str, CIL_SYM_IPADDRS, extra_args, &addr_datum);
   1938 		if (rc != SEPOL_OK) {
   1939 			goto exit;
   1940 		}
   1941 		nodecon->addr = (struct cil_ipaddr*)addr_datum;
   1942 	}
   1943 
   1944 	if (nodecon->mask_str != NULL) {
   1945 		rc = cil_resolve_name(current, nodecon->mask_str, CIL_SYM_IPADDRS, extra_args, &mask_datum);
   1946 		if (rc != SEPOL_OK) {
   1947 			goto exit;
   1948 		}
   1949 		nodecon->mask = (struct cil_ipaddr*)mask_datum;
   1950 	}
   1951 
   1952 	if (nodecon->context_str != NULL) {
   1953 		rc = cil_resolve_name(current, nodecon->context_str, CIL_SYM_CONTEXTS, extra_args, &context_datum);
   1954 		if (rc != SEPOL_OK) {
   1955 			goto exit;
   1956 		}
   1957 		nodecon->context = (struct cil_context*)context_datum;
   1958 	} else {
   1959 		rc = cil_resolve_context(current, nodecon->context, extra_args);
   1960 		if (rc != SEPOL_OK) {
   1961 			goto exit;
   1962 		}
   1963 	}
   1964 
   1965 	if (nodecon->addr->family != nodecon->mask->family) {
   1966 		cil_log(CIL_ERR, "Nodecon ip address not in the same family\n");
   1967 		rc = SEPOL_ERR;
   1968 		goto exit;
   1969 	}
   1970 
   1971 
   1972 	return SEPOL_OK;
   1973 
   1974 exit:
   1975 	return rc;
   1976 }
   1977 
   1978 int cil_resolve_netifcon(struct cil_tree_node *current, void *extra_args)
   1979 {
   1980 	struct cil_netifcon *netifcon = current->data;
   1981 	struct cil_symtab_datum *ifcon_datum = NULL;
   1982 	struct cil_symtab_datum *packcon_datum = NULL;
   1983 
   1984 	int rc = SEPOL_ERR;
   1985 
   1986 	if (netifcon->if_context_str != NULL) {
   1987 		rc = cil_resolve_name(current, netifcon->if_context_str, CIL_SYM_CONTEXTS, extra_args, &ifcon_datum);
   1988 		if (rc != SEPOL_OK) {
   1989 			goto exit;
   1990 		}
   1991 		netifcon->if_context = (struct cil_context*)ifcon_datum;
   1992 	} else {
   1993 		rc = cil_resolve_context(current, netifcon->if_context, extra_args);
   1994 		if (rc != SEPOL_OK) {
   1995 			goto exit;
   1996 		}
   1997 	}
   1998 
   1999 	if (netifcon->packet_context_str != NULL) {
   2000 		rc = cil_resolve_name(current, netifcon->packet_context_str, CIL_SYM_CONTEXTS, extra_args, &packcon_datum);
   2001 		if (rc != SEPOL_OK) {
   2002 			goto exit;
   2003 		}
   2004 		netifcon->packet_context = (struct cil_context*)packcon_datum;
   2005 	} else {
   2006 		rc = cil_resolve_context(current, netifcon->packet_context, extra_args);
   2007 		if (rc != SEPOL_OK) {
   2008 			goto exit;
   2009 		}
   2010 	}
   2011 	return SEPOL_OK;
   2012 
   2013 exit:
   2014 	return rc;
   2015 }
   2016 
   2017 int cil_resolve_pirqcon(struct cil_tree_node *current, void *extra_args)
   2018 {
   2019 	struct cil_pirqcon *pirqcon = current->data;
   2020 	struct cil_symtab_datum *context_datum = NULL;
   2021 	int rc = SEPOL_ERR;
   2022 
   2023 	if (pirqcon->context_str != NULL) {
   2024 		rc = cil_resolve_name(current, pirqcon->context_str, CIL_SYM_CONTEXTS, extra_args, &context_datum);
   2025 		if (rc != SEPOL_OK) {
   2026 			goto exit;
   2027 		}
   2028 		pirqcon->context = (struct cil_context*)context_datum;
   2029 	} else {
   2030 		rc = cil_resolve_context(current, pirqcon->context, extra_args);
   2031 		if (rc != SEPOL_OK) {
   2032 			goto exit;
   2033 		}
   2034 	}
   2035 
   2036 	return SEPOL_OK;
   2037 
   2038 exit:
   2039 	return rc;
   2040 }
   2041 
   2042 int cil_resolve_iomemcon(struct cil_tree_node *current, void *extra_args)
   2043 {
   2044 	struct cil_iomemcon *iomemcon = current->data;
   2045 	struct cil_symtab_datum *context_datum = NULL;
   2046 	int rc = SEPOL_ERR;
   2047 
   2048 	if (iomemcon->context_str != NULL) {
   2049 		rc = cil_resolve_name(current, iomemcon->context_str, CIL_SYM_CONTEXTS, extra_args, &context_datum);
   2050 		if (rc != SEPOL_OK) {
   2051 			goto exit;
   2052 		}
   2053 		iomemcon->context = (struct cil_context*)context_datum;
   2054 	} else {
   2055 		rc = cil_resolve_context(current, iomemcon->context, extra_args);
   2056 		if (rc != SEPOL_OK) {
   2057 			goto exit;
   2058 		}
   2059 	}
   2060 
   2061 	return SEPOL_OK;
   2062 
   2063 exit:
   2064 	return rc;
   2065 }
   2066 
   2067 int cil_resolve_ioportcon(struct cil_tree_node *current, void *extra_args)
   2068 {
   2069 	struct cil_ioportcon *ioportcon = current->data;
   2070 	struct cil_symtab_datum *context_datum = NULL;
   2071 	int rc = SEPOL_ERR;
   2072 
   2073 	if (ioportcon->context_str != NULL) {
   2074 		rc = cil_resolve_name(current, ioportcon->context_str, CIL_SYM_CONTEXTS, extra_args, &context_datum);
   2075 		if (rc != SEPOL_OK) {
   2076 			goto exit;
   2077 		}
   2078 		ioportcon->context = (struct cil_context*)context_datum;
   2079 	} else {
   2080 		rc = cil_resolve_context(current, ioportcon->context, extra_args);
   2081 		if (rc != SEPOL_OK) {
   2082 			goto exit;
   2083 		}
   2084 	}
   2085 
   2086 	return SEPOL_OK;
   2087 
   2088 exit:
   2089 	return rc;
   2090 }
   2091 
   2092 int cil_resolve_pcidevicecon(struct cil_tree_node *current, void *extra_args)
   2093 {
   2094 	struct cil_pcidevicecon *pcidevicecon = current->data;
   2095 	struct cil_symtab_datum *context_datum = NULL;
   2096 	int rc = SEPOL_ERR;
   2097 
   2098 	if (pcidevicecon->context_str != NULL) {
   2099 		rc = cil_resolve_name(current, pcidevicecon->context_str, CIL_SYM_CONTEXTS, extra_args, &context_datum);
   2100 		if (rc != SEPOL_OK) {
   2101 			goto exit;
   2102 		}
   2103 		pcidevicecon->context = (struct cil_context*)context_datum;
   2104 	} else {
   2105 		rc = cil_resolve_context(current, pcidevicecon->context, extra_args);
   2106 		if (rc != SEPOL_OK) {
   2107 			goto exit;
   2108 		}
   2109 	}
   2110 
   2111 	return SEPOL_OK;
   2112 
   2113 exit:
   2114 	return rc;
   2115 }
   2116 
   2117 int cil_resolve_devicetreecon(struct cil_tree_node *current, void *extra_args)
   2118 {
   2119 	struct cil_devicetreecon *devicetreecon = current->data;
   2120 	struct cil_symtab_datum *context_datum = NULL;
   2121 	int rc = SEPOL_ERR;
   2122 
   2123 	if (devicetreecon->context_str != NULL) {
   2124 		rc = cil_resolve_name(current, devicetreecon->context_str, CIL_SYM_CONTEXTS, extra_args, &context_datum);
   2125 		if (rc != SEPOL_OK) {
   2126 			goto exit;
   2127 		}
   2128 		devicetreecon->context = (struct cil_context*)context_datum;
   2129 	} else {
   2130 		rc = cil_resolve_context(current, devicetreecon->context, extra_args);
   2131 		if (rc != SEPOL_OK) {
   2132 			goto exit;
   2133 		}
   2134 	}
   2135 
   2136 	return SEPOL_OK;
   2137 
   2138 exit:
   2139 	return rc;
   2140 }
   2141 
   2142 int cil_resolve_fsuse(struct cil_tree_node *current, void *extra_args)
   2143 {
   2144 	struct cil_fsuse *fsuse = current->data;
   2145 	struct cil_symtab_datum *context_datum = NULL;
   2146 	int rc = SEPOL_ERR;
   2147 
   2148 	if (fsuse->context_str != NULL) {
   2149 		rc = cil_resolve_name(current, fsuse->context_str, CIL_SYM_CONTEXTS, extra_args, &context_datum);
   2150 		if (rc != SEPOL_OK) {
   2151 			goto exit;
   2152 		}
   2153 		fsuse->context = (struct cil_context*)context_datum;
   2154 	} else {
   2155 		rc = cil_resolve_context(current, fsuse->context, extra_args);
   2156 		if (rc != SEPOL_OK) {
   2157 			goto exit;
   2158 		}
   2159 	}
   2160 
   2161 	return SEPOL_OK;
   2162 
   2163 exit:
   2164 	return rc;
   2165 }
   2166 
   2167 int cil_resolve_sidcontext(struct cil_tree_node *current, void *extra_args)
   2168 {
   2169 	struct cil_sidcontext *sidcon = current->data;
   2170 	struct cil_symtab_datum *sid_datum = NULL;
   2171 	struct cil_symtab_datum *context_datum = NULL;
   2172 	struct cil_sid *sid = NULL;
   2173 
   2174 	int rc = SEPOL_ERR;
   2175 
   2176 	rc = cil_resolve_name(current, sidcon->sid_str, CIL_SYM_SIDS, extra_args, &sid_datum);
   2177 	if (rc != SEPOL_OK) {
   2178 		goto exit;
   2179 	}
   2180 	sid = (struct cil_sid*)sid_datum;
   2181 
   2182 	if (sidcon->context_str != NULL) {
   2183 		rc = cil_resolve_name(current, sidcon->context_str, CIL_SYM_CONTEXTS, extra_args, &context_datum);
   2184 		if (rc != SEPOL_OK) {
   2185 			goto exit;
   2186 		}
   2187 		sidcon->context = (struct cil_context*)context_datum;
   2188 	} else if (sidcon->context != NULL) {
   2189 		rc = cil_resolve_context(current, sidcon->context, extra_args);
   2190 		if (rc != SEPOL_OK) {
   2191 			goto exit;
   2192 		}
   2193 	}
   2194 
   2195 	if (sid->context != NULL) {
   2196 		cil_log(CIL_ERR, "sid's cannot be associated with more than one context\n");
   2197 		rc = SEPOL_ERR;
   2198 		goto exit;
   2199 	}
   2200 
   2201 	sid->context = sidcon->context;
   2202 
   2203 	return SEPOL_OK;
   2204 
   2205 exit:
   2206 	return rc;
   2207 }
   2208 
   2209 int cil_resolve_blockinherit_link(struct cil_tree_node *current, void *extra_args)
   2210 {
   2211 	struct cil_blockinherit *inherit = current->data;
   2212 	struct cil_symtab_datum *block_datum = NULL;
   2213 	struct cil_tree_node *node = NULL;
   2214 	int rc = SEPOL_ERR;
   2215 
   2216 	rc = cil_resolve_name(current, inherit->block_str, CIL_SYM_BLOCKS, extra_args, &block_datum);
   2217 	if (rc != SEPOL_OK) {
   2218 		goto exit;
   2219 	}
   2220 
   2221 	node = block_datum->nodes->head->data;
   2222 
   2223 	if (node->flavor != CIL_BLOCK) {
   2224 		cil_log(CIL_ERR, "%s is not a block\n", cil_node_to_string(node));
   2225 		rc = SEPOL_ERR;
   2226 		goto exit;
   2227 	}
   2228 
   2229 	inherit->block = (struct cil_block *)block_datum;
   2230 
   2231 	if (inherit->block->bi_nodes == NULL) {
   2232 		cil_list_init(&inherit->block->bi_nodes, CIL_NODE);
   2233 	}
   2234 	cil_list_append(inherit->block->bi_nodes, CIL_NODE, current);
   2235 
   2236 	return SEPOL_OK;
   2237 
   2238 exit:
   2239 	return rc;
   2240 }
   2241 
   2242 void cil_print_recursive_blockinherit(struct cil_tree_node *bi_node, struct cil_tree_node *terminating_node)
   2243 {
   2244 	struct cil_list *trace = NULL;
   2245 	struct cil_list_item *item = NULL;
   2246 	struct cil_tree_node *curr = NULL;
   2247 
   2248 	cil_list_init(&trace, CIL_NODE);
   2249 
   2250 	for (curr = bi_node; curr != terminating_node; curr = curr->parent) {
   2251 		if (curr->flavor == CIL_BLOCK) {
   2252 			cil_list_prepend(trace, CIL_NODE, curr);
   2253 		} else {
   2254 			if (curr != bi_node) {
   2255 				cil_list_prepend(trace, CIL_NODE, NODE(((struct cil_blockinherit *)curr->data)->block));
   2256 			}
   2257 			cil_list_prepend(trace, CIL_NODE, curr);
   2258 		}
   2259 	}
   2260 	cil_list_prepend(trace, CIL_NODE, terminating_node);
   2261 
   2262 	cil_list_for_each(item, trace) {
   2263 		curr = item->data;
   2264 		if (curr->flavor == CIL_BLOCK) {
   2265 			cil_tree_log(curr, CIL_ERR, "block %s", DATUM(curr->data)->name);
   2266 		} else {
   2267 			cil_tree_log(curr, CIL_ERR, "blockinherit %s", ((struct cil_blockinherit *)curr->data)->block_str);
   2268 		}
   2269 	}
   2270 
   2271 	cil_list_destroy(&trace, CIL_FALSE);
   2272 }
   2273 
   2274 int cil_check_recursive_blockinherit(struct cil_tree_node *bi_node)
   2275 {
   2276 	struct cil_tree_node *curr = NULL;
   2277 	struct cil_blockinherit *bi = NULL;
   2278 	struct cil_block *block = NULL;
   2279 	int rc = SEPOL_ERR;
   2280 
   2281 	bi = bi_node->data;
   2282 
   2283 	for (curr = bi_node->parent; curr != NULL; curr = curr->parent) {
   2284 		if (curr->flavor != CIL_BLOCK) {
   2285 			continue;
   2286 		}
   2287 
   2288 		block = curr->data;
   2289 
   2290 		if (block != bi->block) {
   2291 			continue;
   2292 		}
   2293 
   2294 		cil_log(CIL_ERR, "Recursive blockinherit found:\n");
   2295 		cil_print_recursive_blockinherit(bi_node, curr);
   2296 
   2297 		rc = SEPOL_ERR;
   2298 		goto exit;
   2299 	}
   2300 
   2301 	rc = SEPOL_OK;
   2302 
   2303 exit:
   2304 	return rc;
   2305 }
   2306 
   2307 int cil_resolve_blockinherit_copy(struct cil_tree_node *current, void *extra_args)
   2308 {
   2309 	struct cil_block *block = current->data;
   2310 	struct cil_args_resolve *args = extra_args;
   2311 	struct cil_db *db = NULL;
   2312 	struct cil_list_item *item = NULL;
   2313 	int rc = SEPOL_ERR;
   2314 
   2315 	// This block is not inherited
   2316 	if (block->bi_nodes == NULL) {
   2317 		rc = SEPOL_OK;
   2318 		goto exit;
   2319 	}
   2320 
   2321 	db = args->db;
   2322 
   2323 	// Make sure this is the original block and not a merged block from a blockinherit
   2324 	if (current != block->datum.nodes->head->data) {
   2325 		rc = SEPOL_OK;
   2326 		goto exit;
   2327 	}
   2328 
   2329 	cil_list_for_each(item, block->bi_nodes) {
   2330 		rc = cil_check_recursive_blockinherit(item->data);
   2331 		if (rc != SEPOL_OK) {
   2332 			goto exit;
   2333 		}
   2334 
   2335 		rc = cil_copy_ast(db, current, item->data);
   2336 		if (rc != SEPOL_OK) {
   2337 			cil_log(CIL_ERR, "Failed to copy block contents into blockinherit\n");
   2338 			goto exit;
   2339 		}
   2340 	}
   2341 
   2342 	return SEPOL_OK;
   2343 
   2344 exit:
   2345 	return rc;
   2346 }
   2347 
   2348 int cil_resolve_blockabstract(struct cil_tree_node *current, void *extra_args)
   2349 {
   2350 	struct cil_blockabstract *abstract = current->data;
   2351 	struct cil_symtab_datum *block_datum = NULL;
   2352 	struct cil_tree_node *block_node = NULL;
   2353 	int rc = SEPOL_ERR;
   2354 
   2355 	rc = cil_resolve_name(current, abstract->block_str, CIL_SYM_BLOCKS, extra_args, &block_datum);
   2356 	if (rc != SEPOL_OK) {
   2357 		goto exit;
   2358 	}
   2359 
   2360 	block_node = block_datum->nodes->head->data;
   2361 	if (block_node->flavor != CIL_BLOCK) {
   2362 		cil_log(CIL_ERR, "Failed to resolve blockabstract to a block, rc: %d\n", rc);
   2363 		goto exit;
   2364 	}
   2365 
   2366 	((struct cil_block*)block_datum)->is_abstract = CIL_TRUE;
   2367 
   2368 	return SEPOL_OK;
   2369 
   2370 exit:
   2371 	return rc;
   2372 }
   2373 
   2374 int cil_resolve_in(struct cil_tree_node *current, void *extra_args)
   2375 {
   2376 	struct cil_in *in = current->data;
   2377 	struct cil_args_resolve *args = extra_args;
   2378 	struct cil_db *db = NULL;
   2379 	struct cil_symtab_datum *block_datum = NULL;
   2380 	struct cil_tree_node *block_node = NULL;
   2381 	int rc = SEPOL_ERR;
   2382 
   2383 	if (args != NULL) {
   2384 		db = args->db;
   2385 	}
   2386 
   2387 	rc = cil_resolve_name(current, in->block_str, CIL_SYM_BLOCKS, extra_args, &block_datum);
   2388 	if (rc != SEPOL_OK) {
   2389 		goto exit;
   2390 	}
   2391 
   2392 	block_node = block_datum->nodes->head->data;
   2393 
   2394 	rc = cil_copy_ast(db, current, block_node);
   2395 	if (rc != SEPOL_OK) {
   2396 		printf("Failed to copy in, rc: %d\n", rc);
   2397 		goto exit;
   2398 	}
   2399 
   2400 	cil_tree_children_destroy(current);
   2401 	current->cl_head = NULL;
   2402 	current->cl_tail = NULL;
   2403 
   2404 	return SEPOL_OK;
   2405 
   2406 exit:
   2407 	return rc;
   2408 }
   2409 
   2410 int cil_resolve_in_list(void *extra_args)
   2411 {
   2412 	struct cil_args_resolve *args = extra_args;
   2413 	struct cil_list *ins = args->in_list;
   2414 	struct cil_list_item *curr = NULL;
   2415 	struct cil_tree_node *node = NULL;
   2416 	struct cil_tree_node *last_failed_node = NULL;
   2417 	struct cil_in *in = NULL;
   2418 	struct cil_symtab_datum *block_datum = NULL;
   2419 	int resolved = 0;
   2420 	int unresolved = 0;
   2421 	int rc = SEPOL_ERR;
   2422 
   2423 	do {
   2424 		resolved = 0;
   2425 		unresolved = 0;
   2426 
   2427 		cil_list_for_each(curr, ins) {
   2428 			if (curr->flavor != CIL_NODE) {
   2429 				continue;
   2430 			}
   2431 
   2432 			node = curr->data;
   2433 			in = node->data;
   2434 
   2435 			rc = cil_resolve_name(node, in->block_str, CIL_SYM_BLOCKS, extra_args, &block_datum);
   2436 			if (rc != SEPOL_OK) {
   2437 				unresolved++;
   2438 				last_failed_node = node;
   2439 			} else {
   2440 				rc = cil_resolve_in(node, extra_args);
   2441 				if (rc != SEPOL_OK) {
   2442 					goto exit;
   2443 				}
   2444 
   2445 				resolved++;
   2446 				curr->data = NULL;
   2447 				curr->flavor = CIL_NONE;
   2448 			}
   2449 		}
   2450 
   2451 		if (unresolved > 0 && resolved == 0) {
   2452 			cil_tree_log(last_failed_node, CIL_ERR, "Failed to resolve in-statement");
   2453 			rc = SEPOL_ERR;
   2454 			goto exit;
   2455 		}
   2456 
   2457 	} while (unresolved > 0);
   2458 
   2459 	rc = SEPOL_OK;
   2460 
   2461 exit:
   2462 	return rc;
   2463 }
   2464 
   2465 
   2466 int cil_resolve_bounds(struct cil_tree_node *current, void *extra_args, enum cil_flavor flavor, enum cil_flavor attr_flavor)
   2467 {
   2468 	int rc = SEPOL_ERR;
   2469 	struct cil_bounds *bounds = current->data;
   2470 	enum cil_sym_index index;
   2471 	struct cil_symtab_datum *parent_datum = NULL;
   2472 	struct cil_symtab_datum *child_datum = NULL;
   2473 
   2474 	rc = cil_flavor_to_symtab_index(flavor, &index);
   2475 	if (rc != SEPOL_OK) {
   2476 		goto exit;
   2477 	}
   2478 
   2479 	rc = cil_resolve_name(current, bounds->parent_str, index, extra_args, &parent_datum);
   2480 	if (rc != SEPOL_OK) {
   2481 		goto exit;
   2482 	}
   2483 	if (NODE(parent_datum)->flavor == attr_flavor) {
   2484 		cil_log(CIL_ERR, "Bounds parent %s is an attribute\n", bounds->parent_str);
   2485 		rc = SEPOL_ERR;
   2486 		goto exit;
   2487 	}
   2488 
   2489 
   2490 	rc = cil_resolve_name(current, bounds->child_str, index, extra_args, &child_datum);
   2491 	if (rc != SEPOL_OK) {
   2492 		goto exit;
   2493 	}
   2494 	if (NODE(child_datum)->flavor == attr_flavor) {
   2495 		cil_log(CIL_ERR, "Bounds child %s is an attribute\n", bounds->child_str);
   2496 		rc = SEPOL_ERR;
   2497 		goto exit;
   2498 	}
   2499 
   2500 	switch (flavor) {
   2501 	case CIL_USER: {
   2502 		struct cil_user *user = (struct cil_user *)child_datum;
   2503 
   2504 		if (user->bounds != NULL) {
   2505 			cil_tree_log(NODE(user->bounds), CIL_ERR, "User %s already bound by parent", bounds->child_str);
   2506 			rc = SEPOL_ERR;
   2507 			goto exit;
   2508 		}
   2509 
   2510 		user->bounds = (struct cil_user *)parent_datum;
   2511 		break;
   2512 	}
   2513 	case CIL_ROLE: {
   2514 		struct cil_role *role = (struct cil_role *)child_datum;
   2515 
   2516 		if (role->bounds != NULL) {
   2517 			cil_tree_log(NODE(role->bounds), CIL_ERR, "Role %s already bound by parent", bounds->child_str);
   2518 			rc = SEPOL_ERR;
   2519 			goto exit;
   2520 		}
   2521 
   2522 		role->bounds = (struct cil_role *)parent_datum;
   2523 		break;
   2524 	}
   2525 	case CIL_TYPE: {
   2526 		struct cil_type *type = (struct cil_type *)child_datum;
   2527 
   2528 		if (type->bounds != NULL) {
   2529 			cil_tree_log(NODE(type->bounds), CIL_ERR, "Type %s already bound by parent", bounds->child_str);
   2530 			rc = SEPOL_ERR;
   2531 			goto exit;
   2532 		}
   2533 
   2534 		type->bounds = (struct cil_type *)parent_datum;
   2535 		break;
   2536 	}
   2537 	default:
   2538 		break;
   2539 	}
   2540 
   2541 	return SEPOL_OK;
   2542 
   2543 exit:
   2544 	cil_tree_log(current, CIL_ERR, "Bad bounds statement");
   2545 	return rc;
   2546 }
   2547 
   2548 int cil_resolve_default(struct cil_tree_node *current, void *extra_args)
   2549 {
   2550 	int rc = SEPOL_ERR;
   2551 	struct cil_default *def = current->data;
   2552 	struct cil_list_item *curr;
   2553 	struct cil_symtab_datum *datum;
   2554 
   2555 	cil_list_init(&def->class_datums, def->flavor);
   2556 
   2557 	cil_list_for_each(curr, def->class_strs) {
   2558 		rc = cil_resolve_name(current, (char *)curr->data, CIL_SYM_CLASSES, extra_args, &datum);
   2559 		if (rc != SEPOL_OK) {
   2560 			goto exit;
   2561 		}
   2562 		cil_list_append(def->class_datums, CIL_CLASS, datum);
   2563 	}
   2564 
   2565 	return SEPOL_OK;
   2566 
   2567 exit:
   2568 	return rc;
   2569 }
   2570 
   2571 int cil_resolve_defaultrange(struct cil_tree_node *current, void *extra_args)
   2572 {
   2573 	int rc = SEPOL_ERR;
   2574 	struct cil_defaultrange *def = current->data;
   2575 	struct cil_list_item *curr;
   2576 	struct cil_symtab_datum *datum;
   2577 
   2578 	cil_list_init(&def->class_datums, CIL_DEFAULTRANGE);
   2579 
   2580 	cil_list_for_each(curr, def->class_strs) {
   2581 		rc = cil_resolve_name(current, (char *)curr->data, CIL_SYM_CLASSES, extra_args, &datum);
   2582 		if (rc != SEPOL_OK) {
   2583 			goto exit;
   2584 		}
   2585 		cil_list_append(def->class_datums, CIL_CLASS, datum);
   2586 	}
   2587 
   2588 	return SEPOL_OK;
   2589 
   2590 exit:
   2591 	return rc;
   2592 }
   2593 
   2594 void cil_print_recursive_call(struct cil_tree_node *call_node, struct cil_tree_node *terminating_node)
   2595 {
   2596 	struct cil_list *trace = NULL;
   2597 	struct cil_list_item * item = NULL;
   2598 	struct cil_tree_node *curr = NULL;
   2599 
   2600 	cil_list_init(&trace, CIL_NODE);
   2601 
   2602 	for (curr = call_node; curr != terminating_node; curr = curr->parent) {
   2603 		if (curr->flavor == CIL_CALL) {
   2604 			if (curr != call_node) {
   2605 				cil_list_prepend(trace, CIL_NODE, NODE(((struct cil_call *)curr->data)->macro));
   2606 			}
   2607 			cil_list_prepend(trace, CIL_NODE, curr);
   2608 		}
   2609 	}
   2610 
   2611 	if (terminating_node->flavor == CIL_MACRO) {
   2612 		cil_list_prepend(trace, CIL_NODE, terminating_node);
   2613 	} else {
   2614 		cil_list_prepend(trace, CIL_NODE, NODE(((struct cil_call *)terminating_node->data)->macro));
   2615 	}
   2616 
   2617 	cil_list_for_each(item, trace) {
   2618 		curr = item->data;
   2619 		if (curr->flavor == CIL_MACRO) {
   2620 			cil_tree_log(curr, CIL_ERR, "macro %s", DATUM(curr->data)->name);
   2621 		} else {
   2622 			cil_tree_log(curr, CIL_ERR, "call %s", ((struct cil_call *)curr->data)->macro_str);
   2623 		}
   2624 	}
   2625 
   2626 	cil_list_destroy(&trace, CIL_FALSE);
   2627 }
   2628 
   2629 int cil_check_recursive_call(struct cil_tree_node *call_node, struct cil_tree_node *macro_node)
   2630 {
   2631 	struct cil_tree_node *curr = NULL;
   2632 	struct cil_call * call = NULL;
   2633 	int rc = SEPOL_ERR;
   2634 
   2635 	for (curr = call_node; curr != NULL; curr = curr->parent) {
   2636 		if (curr->flavor == CIL_CALL) {
   2637 			if (curr == call_node) {
   2638 				continue;
   2639 			}
   2640 
   2641 			call = curr->data;
   2642 			if (call->macro != macro_node->data) {
   2643 				continue;
   2644 			}
   2645 		} else if (curr->flavor == CIL_MACRO) {
   2646 			if (curr != macro_node) {
   2647 				rc = SEPOL_OK;
   2648 				goto exit;
   2649 			}
   2650 		} else {
   2651 			continue;
   2652 		}
   2653 
   2654 		cil_log(CIL_ERR, "Recursive macro call found:\n");
   2655 		cil_print_recursive_call(call_node, curr);
   2656 
   2657 		rc = SEPOL_ERR;
   2658 		goto exit;
   2659 	}
   2660 
   2661 	rc = SEPOL_OK;
   2662 exit:
   2663 	return rc;
   2664 }
   2665 
   2666 int cil_resolve_call1(struct cil_tree_node *current, void *extra_args)
   2667 {
   2668 	struct cil_call *new_call = current->data;
   2669 	struct cil_args_resolve *args = extra_args;
   2670 	struct cil_db *db = NULL;
   2671 	struct cil_tree_node *macro_node = NULL;
   2672 	struct cil_symtab_datum *macro_datum = NULL;
   2673 	int rc = SEPOL_ERR;
   2674 
   2675 	if (args != NULL) {
   2676 		db = args->db;
   2677 	}
   2678 
   2679 	rc = cil_resolve_name(current, new_call->macro_str, CIL_SYM_BLOCKS, extra_args, &macro_datum);
   2680 	if (rc != SEPOL_OK) {
   2681 		goto exit;
   2682 	}
   2683 
   2684 	macro_node = macro_datum->nodes->head->data;
   2685 
   2686 	if (macro_node->flavor != CIL_MACRO) {
   2687 		printf("Failed to resolve %s to a macro\n", new_call->macro_str);
   2688 		rc = SEPOL_ERR;
   2689 		goto exit;
   2690 	}
   2691 	new_call->macro = (struct cil_macro*)macro_datum;
   2692 
   2693 	if (new_call->macro->params != NULL ) {
   2694 
   2695 		struct cil_list_item *item;
   2696 		struct cil_args *new_arg = NULL;
   2697 		struct cil_tree_node *pc = NULL;
   2698 
   2699 		if (new_call->args_tree == NULL) {
   2700 			cil_tree_log(current, CIL_ERR, "Missing arguments");
   2701 			rc = SEPOL_ERR;
   2702 			goto exit;
   2703 		}
   2704 
   2705 		pc = new_call->args_tree->root->cl_head;
   2706 
   2707 		cil_list_init(&new_call->args, CIL_LIST_ITEM);
   2708 
   2709 		cil_list_for_each(item, new_call->macro->params) {
   2710 			enum cil_flavor flavor = ((struct cil_param*)item->data)->flavor;
   2711 
   2712 			if (pc == NULL) {
   2713 				cil_tree_log(current, CIL_ERR, "Missing arguments");
   2714 				rc = SEPOL_ERR;
   2715 				goto exit;
   2716 			}
   2717 			if (item->flavor != CIL_PARAM) {
   2718 				rc = SEPOL_ERR;
   2719 				goto exit;
   2720 			}
   2721 
   2722 			cil_args_init(&new_arg);
   2723 
   2724 			switch (flavor) {
   2725 			case CIL_NAME: {
   2726 				struct cil_name *name;
   2727 				name = __cil_insert_name(args->db, pc->data, current);
   2728 				if (name != NULL) {
   2729 					new_arg->arg = (struct cil_symtab_datum *)name;
   2730 				} else {
   2731 					new_arg->arg_str = pc->data;
   2732 				}
   2733 			}
   2734 				break;
   2735 			case CIL_TYPE:
   2736 				new_arg->arg_str = pc->data;
   2737 				break;
   2738 			case CIL_ROLE:
   2739 				new_arg->arg_str = pc->data;
   2740 				break;
   2741 			case CIL_USER:
   2742 				new_arg->arg_str = pc->data;
   2743 				break;
   2744 			case CIL_SENS:
   2745 				new_arg->arg_str = pc->data;
   2746 				break;
   2747 			case CIL_CAT:
   2748 				new_arg->arg_str = pc->data;
   2749 				break;
   2750 			case CIL_BOOL:
   2751 				new_arg->arg_str = pc->data;
   2752 				break;
   2753 			case CIL_CATSET: {
   2754 				if (pc->cl_head != NULL) {
   2755 					struct cil_catset *catset = NULL;
   2756 					struct cil_tree_node *cat_node = NULL;
   2757 					cil_catset_init(&catset);
   2758 					rc = cil_fill_cats(pc, &catset->cats);
   2759 					if (rc != SEPOL_OK) {
   2760 						cil_destroy_catset(catset);
   2761 						goto exit;
   2762 					}
   2763 					cil_tree_node_init(&cat_node);
   2764 					cat_node->flavor = CIL_CATSET;
   2765 					cat_node->data = catset;
   2766 					cil_list_append(((struct cil_symtab_datum*)catset)->nodes,
   2767 									CIL_LIST_ITEM, cat_node);
   2768 					new_arg->arg = (struct cil_symtab_datum*)catset;
   2769 				} else {
   2770 					new_arg->arg_str = pc->data;
   2771 				}
   2772 
   2773 				break;
   2774 			}
   2775 			case CIL_LEVEL: {
   2776 				if (pc->cl_head != NULL) {
   2777 					struct cil_level *level = NULL;
   2778 					struct cil_tree_node *lvl_node = NULL;
   2779 					cil_level_init(&level);
   2780 
   2781 					rc = cil_fill_level(pc->cl_head, level);
   2782 					if (rc != SEPOL_OK) {
   2783 						cil_log(CIL_ERR, "Failed to create anonymous level, rc: %d\n", rc);
   2784 						cil_destroy_level(level);
   2785 						goto exit;
   2786 					}
   2787 					cil_tree_node_init(&lvl_node);
   2788 					lvl_node->flavor = CIL_LEVEL;
   2789 					lvl_node->data = level;
   2790 					cil_list_append(((struct cil_symtab_datum*)level)->nodes,
   2791 									CIL_LIST_ITEM, lvl_node);
   2792 					new_arg->arg = (struct cil_symtab_datum*)level;
   2793 				} else {
   2794 					new_arg->arg_str = pc->data;
   2795 				}
   2796 
   2797 				break;
   2798 			}
   2799 			case CIL_LEVELRANGE: {
   2800 				if (pc->cl_head != NULL) {
   2801 					struct cil_levelrange *range = NULL;
   2802 					struct cil_tree_node *range_node = NULL;
   2803 					cil_levelrange_init(&range);
   2804 
   2805 					rc = cil_fill_levelrange(pc->cl_head, range);
   2806 					if (rc != SEPOL_OK) {
   2807 						cil_log(CIL_ERR, "Failed to create anonymous levelrange, rc: %d\n", rc);
   2808 						cil_destroy_levelrange(range);
   2809 						goto exit;
   2810 					}
   2811 					cil_tree_node_init(&range_node);
   2812 					range_node->flavor = CIL_LEVELRANGE;
   2813 					range_node->data = range;
   2814 					cil_list_append(((struct cil_symtab_datum*)range)->nodes,
   2815 									CIL_LIST_ITEM, range_node);
   2816 					new_arg->arg = (struct cil_symtab_datum*)range;
   2817 				} else {
   2818 					new_arg->arg_str = pc->data;
   2819 				}
   2820 
   2821 				break;
   2822 			}
   2823 			case CIL_IPADDR: {
   2824 				if (pc->cl_head != NULL) {
   2825 					struct cil_ipaddr *ipaddr = NULL;
   2826 					struct cil_tree_node *addr_node = NULL;
   2827 					cil_ipaddr_init(&ipaddr);
   2828 
   2829 					rc = cil_fill_ipaddr(pc->cl_head, ipaddr);
   2830 					if (rc != SEPOL_OK) {
   2831 						cil_log(CIL_ERR, "Failed to create anonymous ip address, rc; %d\n", rc);
   2832 						cil_destroy_ipaddr(ipaddr);
   2833 						goto exit;
   2834 					}
   2835 					cil_tree_node_init(&addr_node);
   2836 					addr_node->flavor = CIL_IPADDR;
   2837 					addr_node->data = ipaddr;
   2838 					cil_list_append(((struct cil_symtab_datum*)ipaddr)->nodes,
   2839 									CIL_LIST_ITEM, addr_node);
   2840 					new_arg->arg = (struct cil_symtab_datum*)ipaddr;
   2841 				} else {
   2842 					new_arg->arg_str = pc->data;
   2843 				}
   2844 
   2845 				break;
   2846 			}
   2847 			case CIL_CLASS:
   2848 				new_arg->arg_str = pc->data;
   2849 				break;
   2850 			case CIL_MAP_CLASS:
   2851 				new_arg->arg_str = pc->data;
   2852 				break;
   2853 			case CIL_CLASSPERMISSION: {
   2854 				if (pc->cl_head != NULL) {
   2855 					struct cil_classpermission *cp = NULL;
   2856 					struct cil_tree_node *cp_node = NULL;
   2857 
   2858 					cil_classpermission_init(&cp);
   2859 					rc = cil_fill_classperms_list(pc, &cp->classperms);
   2860 					if (rc != SEPOL_OK) {
   2861 						cil_log(CIL_ERR, "Failed to create anonymous classpermission\n");
   2862 						cil_destroy_classpermission(cp);
   2863 						goto exit;
   2864 					}
   2865 					cil_tree_node_init(&cp_node);
   2866 					cp_node->flavor = CIL_CLASSPERMISSION;
   2867 					cp_node->data = cp;
   2868 					cil_list_append(cp->datum.nodes, CIL_LIST_ITEM, cp_node);
   2869 					new_arg->arg = (struct cil_symtab_datum*)cp;
   2870 				} else {
   2871 					new_arg->arg_str = pc->data;
   2872 				}
   2873 				break;
   2874 			}
   2875 			default:
   2876 				cil_log(CIL_ERR, "Unexpected flavor: %d\n",
   2877 						(((struct cil_param*)item->data)->flavor));
   2878 				rc = SEPOL_ERR;
   2879 				goto exit;
   2880 			}
   2881 			new_arg->param_str = ((struct cil_param*)item->data)->str;
   2882 			new_arg->flavor = flavor;
   2883 
   2884 			cil_list_append(new_call->args, CIL_ARGS, new_arg);
   2885 
   2886 			pc = pc->next;
   2887 		}
   2888 
   2889 		if (pc != NULL) {
   2890 			cil_tree_log(current, CIL_ERR, "Unexpected arguments");
   2891 			rc = SEPOL_ERR;
   2892 			goto exit;
   2893 		}
   2894 	} else if (new_call->args_tree != NULL) {
   2895 		cil_tree_log(current, CIL_ERR, "Unexpected arguments");
   2896 		rc = SEPOL_ERR;
   2897 		goto exit;
   2898 	}
   2899 
   2900 	if (new_call->copied == 0) {
   2901 		new_call->copied = 1;
   2902 
   2903 		rc = cil_check_recursive_call(current, macro_node);
   2904 		if (rc != SEPOL_OK) {
   2905 			goto exit;
   2906 		}
   2907 
   2908 		rc = cil_copy_ast(db, macro_node, current);
   2909 		if (rc != SEPOL_OK) {
   2910 			cil_log(CIL_ERR, "Failed to copy macro, rc: %d\n", rc);
   2911 			goto exit;
   2912 		}
   2913 	}
   2914 
   2915 	return SEPOL_OK;
   2916 
   2917 exit:
   2918 	return rc;
   2919 }
   2920 
   2921 int cil_resolve_call2(struct cil_tree_node *current, void *extra_args)
   2922 {
   2923 	struct cil_call *new_call = current->data;
   2924 	int rc = SEPOL_ERR;
   2925 	enum cil_sym_index sym_index = CIL_SYM_UNKNOWN;
   2926 	struct cil_list_item *item;
   2927 
   2928 	if (new_call->args == NULL) {
   2929 		rc = SEPOL_OK;
   2930 		goto exit;
   2931 	}
   2932 
   2933 	cil_list_for_each(item, new_call->args) {
   2934 		struct cil_args *arg = item->data;
   2935 		if (arg->arg == NULL && arg->arg_str == NULL) {
   2936 			cil_log(CIL_ERR, "Arguments not created correctly\n");
   2937 			rc = SEPOL_ERR;
   2938 			goto exit;
   2939 		}
   2940 
   2941 		switch (arg->flavor) {
   2942 		case CIL_NAME:
   2943 			if (arg->arg != NULL) {
   2944 				continue; /* No need to resolve */
   2945 			} else {
   2946 				sym_index = CIL_SYM_NAMES;
   2947 			}
   2948 			break;
   2949 		case CIL_LEVEL:
   2950 			if (arg->arg_str == NULL && arg->arg != NULL) {
   2951 				continue; // anonymous, no need to resolve
   2952 			} else {
   2953 				sym_index = CIL_SYM_LEVELS;
   2954 			}
   2955 			break;
   2956 		case CIL_LEVELRANGE:
   2957 			if (arg->arg_str == NULL && arg->arg != NULL) {
   2958 				continue; // anonymous, no need to resolve
   2959 			} else {
   2960 				sym_index = CIL_SYM_LEVELRANGES;
   2961 			}
   2962 			break;
   2963 		case CIL_CATSET:
   2964 			if (arg->arg_str == NULL && arg->arg != NULL) {
   2965 				continue; // anonymous, no need to resolve
   2966 			} else {
   2967 				sym_index = CIL_SYM_CATS;
   2968 			}
   2969 			break;
   2970 		case CIL_IPADDR:
   2971 			if (arg->arg_str == NULL && arg->arg != NULL) {
   2972 				continue; // anonymous, no need to resolve
   2973 			} else {
   2974 				sym_index = CIL_SYM_IPADDRS;
   2975 			}
   2976 			break;
   2977 		case CIL_CLASSPERMISSION:
   2978 			if (arg->arg_str == NULL && arg->arg != NULL) {
   2979 				continue;
   2980 			} else {
   2981 				sym_index = CIL_SYM_CLASSPERMSETS;
   2982 			}
   2983 			break;
   2984 		case CIL_TYPE:
   2985 			if (arg->arg_str == NULL && arg->arg != NULL) {
   2986 				continue; // anonymous, no need to resolve
   2987 			} else {
   2988 				sym_index = CIL_SYM_TYPES;
   2989 			}
   2990 			break;
   2991 		case CIL_ROLE:
   2992 			sym_index = CIL_SYM_ROLES;
   2993 			break;
   2994 		case CIL_USER:
   2995 			sym_index = CIL_SYM_USERS;
   2996 			break;
   2997 		case CIL_SENS:
   2998 			sym_index = CIL_SYM_SENS;
   2999 			break;
   3000 		case CIL_CAT:
   3001 			sym_index = CIL_SYM_CATS;
   3002 			break;
   3003 		case CIL_CLASS:
   3004 		case CIL_MAP_CLASS:
   3005 			sym_index = CIL_SYM_CLASSES;
   3006 			break;
   3007 		case CIL_BOOL:
   3008 			sym_index = CIL_SYM_BOOLS;
   3009 			break;
   3010 		default:
   3011 			rc = SEPOL_ERR;
   3012 			goto exit;
   3013 		}
   3014 
   3015 		if (sym_index != CIL_SYM_UNKNOWN) {
   3016 			rc = cil_resolve_name(current, arg->arg_str, sym_index, extra_args, &(arg->arg));
   3017 			if (rc != SEPOL_OK) {
   3018 				goto exit;
   3019 			}
   3020 		}
   3021 	}
   3022 
   3023 	return SEPOL_OK;
   3024 
   3025 exit:
   3026 	return rc;
   3027 }
   3028 
   3029 int cil_resolve_name_call_args(struct cil_call *call, char *name, enum cil_sym_index sym_index, struct cil_symtab_datum **datum)
   3030 {
   3031 	struct cil_list_item *item;
   3032 	enum cil_sym_index param_index = CIL_SYM_UNKNOWN;
   3033 	int rc = SEPOL_ERR;
   3034 
   3035 	if (call == NULL || name == NULL) {
   3036 		goto exit;
   3037 	}
   3038 
   3039 	if (call->args == NULL) {
   3040 		goto exit;
   3041 	}
   3042 
   3043 	cil_list_for_each(item, call->args) {
   3044 		struct cil_args * arg = item->data;
   3045 		rc = cil_flavor_to_symtab_index(arg->flavor, &param_index);
   3046 		if (param_index == sym_index) {
   3047 			if (name == arg->param_str) {
   3048 				*datum = arg->arg;
   3049 				rc = SEPOL_OK;
   3050 				goto exit;
   3051 			}
   3052 		}
   3053 	}
   3054 
   3055 	return SEPOL_ERR;
   3056 
   3057 exit:
   3058 	return rc;
   3059 }
   3060 
   3061 int cil_resolve_expr(enum cil_flavor expr_type, struct cil_list *str_expr, struct cil_list **datum_expr, struct cil_tree_node *parent, void *extra_args)
   3062 {
   3063 	int rc = SEPOL_ERR;
   3064 	struct cil_list_item *curr;
   3065 	struct cil_symtab_datum *res_datum = NULL;
   3066 	enum cil_sym_index sym_index =  CIL_SYM_UNKNOWN;
   3067 
   3068 	switch (str_expr->flavor) {
   3069 	case CIL_BOOL:
   3070 		sym_index = CIL_SYM_BOOLS;
   3071 		break;
   3072 	case CIL_TUNABLE:
   3073 		sym_index = CIL_SYM_TUNABLES;
   3074 		break;
   3075 	case CIL_TYPE:
   3076 		sym_index = CIL_SYM_TYPES;
   3077 		break;
   3078 	case CIL_ROLE:
   3079 		sym_index = CIL_SYM_ROLES;
   3080 		break;
   3081 	case CIL_USER:
   3082 		sym_index = CIL_SYM_USERS;
   3083 		break;
   3084 	case CIL_CAT:
   3085 		sym_index = CIL_SYM_CATS;
   3086 		break;
   3087 	default:
   3088 		break;
   3089 	}
   3090 
   3091 	cil_list_init(datum_expr, str_expr->flavor);
   3092 
   3093 	cil_list_for_each(curr, str_expr) {
   3094 		switch (curr->flavor) {
   3095 		case CIL_STRING:
   3096 			rc = cil_resolve_name(parent, curr->data, sym_index, extra_args, &res_datum);
   3097 			if (rc != SEPOL_OK) {
   3098 				goto exit;
   3099 			}
   3100 
   3101 			if (sym_index == CIL_SYM_TYPES && (expr_type == CIL_CONSTRAIN || expr_type == CIL_VALIDATETRANS)) {
   3102 				cil_type_used(res_datum, CIL_ATTR_CONSTRAINT);
   3103 			}
   3104 
   3105 			cil_list_append(*datum_expr, CIL_DATUM, res_datum);
   3106 			break;
   3107 		case CIL_LIST: {
   3108 			struct cil_list *datum_sub_expr;
   3109 			rc = cil_resolve_expr(expr_type, curr->data, &datum_sub_expr, parent, extra_args);
   3110 			if (rc != SEPOL_OK) {
   3111 				cil_list_destroy(&datum_sub_expr, CIL_TRUE);
   3112 				goto exit;
   3113 			}
   3114 			cil_list_append(*datum_expr, CIL_LIST, datum_sub_expr);
   3115 			break;
   3116 		}
   3117 		default:
   3118 			cil_list_append(*datum_expr, curr->flavor, curr->data);
   3119 			break;
   3120 		}
   3121 	}
   3122 	return SEPOL_OK;
   3123 
   3124 exit:
   3125 	return rc;
   3126 }
   3127 
   3128 int cil_resolve_boolif(struct cil_tree_node *current, void *extra_args)
   3129 {
   3130 	int rc = SEPOL_ERR;
   3131 	struct cil_booleanif *bif = (struct cil_booleanif*)current->data;
   3132 
   3133 	rc = cil_resolve_expr(CIL_BOOLEANIF, bif->str_expr, &bif->datum_expr, current, extra_args);
   3134 	if (rc != SEPOL_OK) {
   3135 		goto exit;
   3136 	}
   3137 
   3138 	return SEPOL_OK;
   3139 
   3140 exit:
   3141 	return rc;
   3142 }
   3143 
   3144 static int __cil_evaluate_tunable_expr(struct cil_list_item *curr);
   3145 
   3146 static int __cil_evaluate_tunable_expr_helper(struct cil_list_item *curr)
   3147 {
   3148 	if (curr == NULL) {
   3149 		return CIL_FALSE;
   3150 	} else if (curr->flavor == CIL_DATUM) {
   3151 		struct cil_tunable *tun = curr->data;
   3152 		return tun->value;
   3153 	} else if (curr->flavor == CIL_LIST) {
   3154 		struct cil_list *l = curr->data;
   3155 		return __cil_evaluate_tunable_expr(l->head);
   3156 	} else {
   3157 		return CIL_FALSE;
   3158 	}
   3159 }
   3160 
   3161 static int __cil_evaluate_tunable_expr(struct cil_list_item *curr)
   3162 {
   3163 	/* Assumes expression is well-formed */
   3164 
   3165 	if (curr == NULL) {
   3166 		return CIL_FALSE;
   3167 	} else if (curr->flavor == CIL_OP) {
   3168 		uint16_t v1, v2;
   3169 		enum cil_flavor op_flavor = (enum cil_flavor)curr->data;
   3170 
   3171 		v1 = __cil_evaluate_tunable_expr_helper(curr->next);
   3172 
   3173 		if (op_flavor == CIL_NOT) return !v1;
   3174 
   3175 		v2 = __cil_evaluate_tunable_expr_helper(curr->next->next);
   3176 
   3177 		if (op_flavor == CIL_AND) return (v1 && v2);
   3178 		else if (op_flavor == CIL_OR) return (v1 || v2);
   3179 		else if (op_flavor == CIL_XOR) return (v1 ^ v2);
   3180 		else if (op_flavor == CIL_EQ) return (v1 == v2);
   3181 		else if (op_flavor == CIL_NEQ) return (v1 != v2);
   3182 		else return CIL_FALSE;
   3183 	} else {
   3184 		uint16_t v;
   3185 		for (;curr; curr = curr->next) {
   3186 			v = __cil_evaluate_tunable_expr_helper(curr);
   3187 			if (v) return v;
   3188 		}
   3189 		return CIL_FALSE;
   3190 	}
   3191 }
   3192 
   3193 int cil_resolve_tunif(struct cil_tree_node *current, void *extra_args)
   3194 {
   3195 	struct cil_args_resolve *args = extra_args;
   3196 	struct cil_db *db = NULL;
   3197 	int rc = SEPOL_ERR;
   3198 	struct cil_tunableif *tif = (struct cil_tunableif*)current->data;
   3199 	uint16_t result = CIL_FALSE;
   3200 	struct cil_tree_node *true_node = NULL;
   3201 	struct cil_tree_node *false_node = NULL;
   3202 	struct cil_condblock *cb = NULL;
   3203 
   3204 	if (args != NULL) {
   3205 		db = args->db;
   3206 	}
   3207 
   3208 	rc = cil_resolve_expr(CIL_TUNABLEIF, tif->str_expr, &tif->datum_expr, current, extra_args);
   3209 	if (rc != SEPOL_OK) {
   3210 		goto exit;
   3211 	}
   3212 
   3213 	result = __cil_evaluate_tunable_expr(tif->datum_expr->head);
   3214 
   3215 	if (current->cl_head != NULL && current->cl_head->flavor == CIL_CONDBLOCK) {
   3216 		cb = current->cl_head->data;
   3217 		if (cb->flavor == CIL_CONDTRUE) {
   3218 			true_node = current->cl_head;
   3219 		} else if (cb->flavor == CIL_CONDFALSE) {
   3220 			false_node = current->cl_head;
   3221 		}
   3222 	}
   3223 
   3224 	if (current->cl_head != NULL && current->cl_head->next != NULL && current->cl_head->next->flavor == CIL_CONDBLOCK) {
   3225 		cb = current->cl_head->next->data;
   3226 		if (cb->flavor == CIL_CONDTRUE) {
   3227 			true_node = current->cl_head->next;
   3228 		} else if (cb->flavor == CIL_CONDFALSE) {
   3229 			false_node = current->cl_head->next;
   3230 		}
   3231 	}
   3232 
   3233 	if (result == CIL_TRUE) {
   3234 		if (true_node != NULL) {
   3235 			rc = cil_copy_ast(db, true_node, current->parent);
   3236 			if (rc != SEPOL_OK) {
   3237 				goto exit;
   3238 			}
   3239 		}
   3240 	} else {
   3241 		if (false_node != NULL) {
   3242 			rc = cil_copy_ast(db, false_node, current->parent);
   3243 			if (rc  != SEPOL_OK) {
   3244 				goto exit;
   3245 			}
   3246 		}
   3247 	}
   3248 
   3249 	cil_tree_children_destroy(current);
   3250 	current->cl_head = NULL;
   3251 	current->cl_tail = NULL;
   3252 
   3253 	return SEPOL_OK;
   3254 
   3255 exit:
   3256 	return rc;
   3257 }
   3258 
   3259 int cil_resolve_userattributeset(struct cil_tree_node *current, void *extra_args)
   3260 {
   3261 	int rc = SEPOL_ERR;
   3262 	struct cil_userattributeset *attrusers = current->data;
   3263 	struct cil_symtab_datum *attr_datum = NULL;
   3264 	struct cil_tree_node *attr_node = NULL;
   3265 	struct cil_userattribute *attr = NULL;
   3266 
   3267 	rc = cil_resolve_name(current, attrusers->attr_str, CIL_SYM_USERS, extra_args, &attr_datum);
   3268 	if (rc != SEPOL_OK) {
   3269 		goto exit;
   3270 	}
   3271 	attr_node = attr_datum->nodes->head->data;
   3272 
   3273 	if (attr_node->flavor != CIL_USERATTRIBUTE) {
   3274 		rc = SEPOL_ERR;
   3275 		cil_log(CIL_ERR, "Attribute user not an attribute\n");
   3276 		goto exit;
   3277 	}
   3278 	attr = (struct cil_userattribute*)attr_datum;
   3279 
   3280 	rc = cil_resolve_expr(CIL_USERATTRIBUTESET, attrusers->str_expr, &attrusers->datum_expr, current, extra_args);
   3281 	if (rc != SEPOL_OK) {
   3282 		goto exit;
   3283 	}
   3284 
   3285 	rc = cil_verify_no_self_reference(attr_datum, attrusers->datum_expr);
   3286 	if (rc != SEPOL_OK) {
   3287 		goto exit;
   3288 	}
   3289 
   3290 	if (attr->expr_list == NULL) {
   3291 		cil_list_init(&attr->expr_list, CIL_USERATTRIBUTE);
   3292 	}
   3293 
   3294 	cil_list_append(attr->expr_list, CIL_LIST, attrusers->datum_expr);
   3295 
   3296 	return SEPOL_OK;
   3297 
   3298 exit:
   3299 	return rc;
   3300 }
   3301 
   3302 int __cil_resolve_ast_node(struct cil_tree_node *node, void *extra_args)
   3303 {
   3304 	int rc = SEPOL_OK;
   3305 	struct cil_args_resolve *args = extra_args;
   3306 	enum cil_pass pass = 0;
   3307 	struct cil_list *ins = args->in_list;
   3308 
   3309 	if (node == NULL || args == NULL) {
   3310 		goto exit;
   3311 	}
   3312 
   3313 	pass = args->pass;
   3314 	switch (pass) {
   3315 	case CIL_PASS_TIF:
   3316 		if (node->flavor == CIL_TUNABLEIF) {
   3317 			rc = cil_resolve_tunif(node, args);
   3318 		}
   3319 		break;
   3320 	case CIL_PASS_IN:
   3321 		if (node->flavor == CIL_IN) {
   3322 			// due to ordering issues, in statements are just gathered here and
   3323 			// resolved together in cil_resolve_in_list once all are found
   3324 			cil_list_prepend(ins, CIL_NODE, node);
   3325 		}
   3326 		break;
   3327 	case CIL_PASS_BLKIN_LINK:
   3328 		if (node->flavor == CIL_BLOCKINHERIT) {
   3329 			rc = cil_resolve_blockinherit_link(node, args);
   3330 		}
   3331 		break;
   3332 	case CIL_PASS_BLKIN_COPY:
   3333 		if (node->flavor == CIL_BLOCK) {
   3334 			rc = cil_resolve_blockinherit_copy(node, args);
   3335 		}
   3336 		break;
   3337 	case CIL_PASS_BLKABS:
   3338 		if (node->flavor == CIL_BLOCKABSTRACT) {
   3339 			rc = cil_resolve_blockabstract(node, args);
   3340 		}
   3341 		break;
   3342 	case CIL_PASS_MACRO:
   3343 		if (node->flavor == CIL_CALL && args->macro != NULL) {
   3344 			rc = cil_resolve_call1(node, args);
   3345 		}
   3346 		break;
   3347 	case CIL_PASS_CALL1:
   3348 		if (node->flavor == CIL_CALL) {
   3349 			rc = cil_resolve_call1(node, args);
   3350 		}
   3351 		break;
   3352 	case CIL_PASS_CALL2:
   3353 		if (node->flavor == CIL_CALL) {
   3354 			rc = cil_resolve_call2(node, args);
   3355 		}
   3356 		break;
   3357 	case CIL_PASS_ALIAS1:
   3358 		switch (node->flavor) {
   3359 		case CIL_TYPEALIASACTUAL:
   3360 			rc = cil_resolve_aliasactual(node, args, CIL_TYPE, CIL_TYPEALIAS);
   3361 			break;
   3362 		case CIL_SENSALIASACTUAL:
   3363 			rc = cil_resolve_aliasactual(node, args, CIL_SENS, CIL_SENSALIAS);
   3364 			break;
   3365 		case CIL_CATALIASACTUAL:
   3366 			rc = cil_resolve_aliasactual(node, args, CIL_CAT, CIL_CATALIAS);
   3367 			break;
   3368 		default:
   3369 			break;
   3370 		}
   3371 		break;
   3372 	case CIL_PASS_ALIAS2:
   3373 		switch (node->flavor) {
   3374 		case CIL_TYPEALIAS:
   3375 			rc = cil_resolve_alias_to_actual(node, CIL_TYPE);
   3376 			break;
   3377 		case CIL_SENSALIAS:
   3378 			rc = cil_resolve_alias_to_actual(node, CIL_SENS);
   3379 			break;
   3380 		case CIL_CATALIAS:
   3381 			rc = cil_resolve_alias_to_actual(node, CIL_CAT);
   3382 			break;
   3383 		default:
   3384 			break;
   3385 		}
   3386 		break;
   3387 	case CIL_PASS_MISC1:
   3388 		switch (node->flavor) {
   3389 		case CIL_SIDORDER:
   3390 			rc = cil_resolve_sidorder(node, args);
   3391 			break;
   3392 		case CIL_CLASSORDER:
   3393 			rc = cil_resolve_classorder(node, args);
   3394 			break;
   3395 		case CIL_CATORDER:
   3396 			rc = cil_resolve_catorder(node, args);
   3397 			break;
   3398 		case CIL_SENSITIVITYORDER:
   3399 			rc = cil_resolve_sensitivityorder(node, args);
   3400 			break;
   3401 		case CIL_BOOLEANIF:
   3402 			rc = cil_resolve_boolif(node, args);
   3403 			break;
   3404 		default:
   3405 			break;
   3406 		}
   3407 		break;
   3408 	case CIL_PASS_MLS:
   3409 		switch (node->flavor) {
   3410 		case CIL_CATSET:
   3411 			rc = cil_resolve_catset(node, (struct cil_catset*)node->data, args);
   3412 			break;
   3413 		default:
   3414 			break;
   3415 		}
   3416 		break;
   3417 	case CIL_PASS_MISC2:
   3418 		switch (node->flavor) {
   3419 		case CIL_SENSCAT:
   3420 			rc = cil_resolve_senscat(node, args);
   3421 			break;
   3422 		case CIL_CLASSCOMMON:
   3423 			rc = cil_resolve_classcommon(node, args);
   3424 			break;
   3425 		default:
   3426 			break;
   3427 		}
   3428 		break;
   3429 	case CIL_PASS_MISC3:
   3430 		switch (node->flavor) {
   3431 		case CIL_TYPEATTRIBUTESET:
   3432 			rc = cil_resolve_typeattributeset(node, args);
   3433 			break;
   3434 		case CIL_TYPEBOUNDS:
   3435 			rc = cil_resolve_bounds(node, args, CIL_TYPE, CIL_TYPEATTRIBUTE);
   3436 			break;
   3437 		case CIL_TYPEPERMISSIVE:
   3438 			rc = cil_resolve_typepermissive(node, args);
   3439 			break;
   3440 		case CIL_NAMETYPETRANSITION:
   3441 			rc = cil_resolve_nametypetransition(node, args);
   3442 			break;
   3443 		case CIL_RANGETRANSITION:
   3444 			rc = cil_resolve_rangetransition(node, args);
   3445 			break;
   3446 		case CIL_CLASSPERMISSIONSET:
   3447 			rc = cil_resolve_classpermissionset(node, (struct cil_classpermissionset*)node->data, args);
   3448 			break;
   3449 		case CIL_CLASSMAPPING:
   3450 			rc = cil_resolve_classmapping(node, args);
   3451 			break;
   3452 		case CIL_AVRULE:
   3453 		case CIL_AVRULEX:
   3454 			rc = cil_resolve_avrule(node, args);
   3455 			break;
   3456 		case CIL_PERMISSIONX:
   3457 			rc = cil_resolve_permissionx(node, (struct cil_permissionx*)node->data, args);
   3458 			break;
   3459 		case CIL_TYPE_RULE:
   3460 			rc = cil_resolve_type_rule(node, args);
   3461 			break;
   3462 		case CIL_USERROLE:
   3463 			rc = cil_resolve_userrole(node, args);
   3464 			break;
   3465 		case CIL_USERLEVEL:
   3466 			rc = cil_resolve_userlevel(node, args);
   3467 			break;
   3468 		case CIL_USERRANGE:
   3469 			rc = cil_resolve_userrange(node, args);
   3470 			break;
   3471 		case CIL_USERBOUNDS:
   3472 			rc = cil_resolve_bounds(node, args, CIL_USER, CIL_USERATTRIBUTE);
   3473 			break;
   3474 		case CIL_USERPREFIX:
   3475 			rc = cil_resolve_userprefix(node, args);
   3476 			break;
   3477 		case CIL_SELINUXUSER:
   3478 		case CIL_SELINUXUSERDEFAULT:
   3479 			rc = cil_resolve_selinuxuser(node, args);
   3480 			break;
   3481 		case CIL_ROLEATTRIBUTESET:
   3482 			rc = cil_resolve_roleattributeset(node, args);
   3483 			break;
   3484 		case CIL_ROLETYPE:
   3485 			rc = cil_resolve_roletype(node, args);
   3486 			break;
   3487 		case CIL_ROLETRANSITION:
   3488 			rc = cil_resolve_roletransition(node, args);
   3489 			break;
   3490 		case CIL_ROLEALLOW:
   3491 			rc = cil_resolve_roleallow(node, args);
   3492 			break;
   3493 		case CIL_ROLEBOUNDS:
   3494 			rc = cil_resolve_bounds(node, args, CIL_ROLE, CIL_ROLEATTRIBUTE);
   3495 			break;
   3496 		case CIL_LEVEL:
   3497 			rc = cil_resolve_level(node, (struct cil_level*)node->data, args);
   3498 			break;
   3499 		case CIL_LEVELRANGE:
   3500 			rc = cil_resolve_levelrange(node, (struct cil_levelrange*)node->data, args);
   3501 			break;
   3502 		case CIL_CONSTRAIN:
   3503 			rc = cil_resolve_constrain(node, args);
   3504 			break;
   3505 		case CIL_MLSCONSTRAIN:
   3506 			rc = cil_resolve_constrain(node, args);
   3507 			break;
   3508 		case CIL_VALIDATETRANS:
   3509 		case CIL_MLSVALIDATETRANS:
   3510 			rc = cil_resolve_validatetrans(node, args);
   3511 			break;
   3512 		case CIL_CONTEXT:
   3513 			rc = cil_resolve_context(node, (struct cil_context*)node->data, args);
   3514 			break;
   3515 		case CIL_FILECON:
   3516 			rc = cil_resolve_filecon(node, args);
   3517 			break;
   3518 		case CIL_PORTCON:
   3519 			rc = cil_resolve_portcon(node, args);
   3520 			break;
   3521 		case CIL_NODECON:
   3522 			rc = cil_resolve_nodecon(node, args);
   3523 			break;
   3524 		case CIL_GENFSCON:
   3525 			rc = cil_resolve_genfscon(node, args);
   3526 			break;
   3527 		case CIL_NETIFCON:
   3528 			rc = cil_resolve_netifcon(node, args);
   3529 			break;
   3530 		case CIL_PIRQCON:
   3531 			rc = cil_resolve_pirqcon(node, args);
   3532 			break;
   3533 		case CIL_IOMEMCON:
   3534 			rc = cil_resolve_iomemcon(node, args);
   3535 			break;
   3536 		case CIL_IOPORTCON:
   3537 			rc = cil_resolve_ioportcon(node, args);
   3538 			break;
   3539 		case CIL_PCIDEVICECON:
   3540 			rc = cil_resolve_pcidevicecon(node, args);
   3541 			break;
   3542 		case CIL_DEVICETREECON:
   3543 			rc = cil_resolve_devicetreecon(node, args);
   3544 			break;
   3545 		case CIL_FSUSE:
   3546 			rc = cil_resolve_fsuse(node, args);
   3547 			break;
   3548 		case CIL_SIDCONTEXT:
   3549 			rc = cil_resolve_sidcontext(node, args);
   3550 			break;
   3551 		case CIL_DEFAULTUSER:
   3552 		case CIL_DEFAULTROLE:
   3553 		case CIL_DEFAULTTYPE:
   3554 			rc = cil_resolve_default(node, args);
   3555 			break;
   3556 		case CIL_DEFAULTRANGE:
   3557 			rc = cil_resolve_defaultrange(node, args);
   3558 			break;
   3559 		case CIL_USERATTRIBUTESET:
   3560 			rc = cil_resolve_userattributeset(node, args);
   3561 			break;
   3562 		default:
   3563 			break;
   3564 		}
   3565 		break;
   3566 	default:
   3567 		break;
   3568 	}
   3569 
   3570 	return rc;
   3571 
   3572 exit:
   3573 	return rc;
   3574 }
   3575 
   3576 int __cil_resolve_ast_node_helper(struct cil_tree_node *node, uint32_t *finished, void *extra_args)
   3577 {
   3578 	int rc = SEPOL_ERR;
   3579 	struct cil_args_resolve *args = extra_args;
   3580 	enum cil_pass pass = args->pass;
   3581 	struct cil_tree_node *optstack = args->optstack;
   3582 	struct cil_tree_node *boolif = args->boolif;
   3583 	struct cil_tree_node *blockstack = args->blockstack;
   3584 	struct cil_tree_node *macro = args->macro;
   3585 
   3586 	if (node == NULL) {
   3587 		goto exit;
   3588 	}
   3589 
   3590 	if (optstack != NULL) {
   3591 		if (node->flavor == CIL_TUNABLE || node->flavor == CIL_MACRO) {
   3592 			/* tuanbles and macros are not allowed in optionals*/
   3593 			cil_tree_log(node, CIL_ERR, "%s statement is not allowed in optionals", cil_node_to_string(node));
   3594 			rc = SEPOL_ERR;
   3595 			goto exit;
   3596 		}
   3597 	}
   3598 
   3599 	if (blockstack != NULL) {
   3600 		if (node->flavor == CIL_CAT || node->flavor == CIL_SENS) {
   3601 			cil_tree_log(node, CIL_ERR, "%s statement is not allowed in blocks", cil_node_to_string(node));
   3602 			rc = SEPOL_ERR;
   3603 			goto exit;
   3604 		}
   3605 	}
   3606 
   3607 	if (macro != NULL) {
   3608 		if (node->flavor == CIL_BLOCKINHERIT ||
   3609 			node->flavor == CIL_BLOCK ||
   3610 			node->flavor == CIL_BLOCKABSTRACT ||
   3611 			node->flavor == CIL_MACRO) {
   3612 			cil_tree_log(node, CIL_ERR, "%s statement is not allowed in macros", cil_node_to_string(node));
   3613 			rc = SEPOL_ERR;
   3614 			goto exit;
   3615 		}
   3616 	}
   3617 
   3618 	if (boolif != NULL) {
   3619 		if (!(node->flavor == CIL_CONDBLOCK ||
   3620 			node->flavor == CIL_AVRULE ||
   3621 			node->flavor == CIL_TYPE_RULE ||
   3622 			node->flavor == CIL_CALL ||
   3623 			node->flavor == CIL_TUNABLEIF ||
   3624 			node->flavor == CIL_NAMETYPETRANSITION)) {
   3625 			if (((struct cil_booleanif*)boolif->data)->preserved_tunable) {
   3626 				cil_tree_log(node, CIL_ERR, "%s statement is not allowed in booleanifs (tunableif treated as a booleanif)", cil_node_to_string(node));
   3627 			} else {
   3628 				cil_tree_log(node, CIL_ERR, "%s statement is not allowed in booleanifs", cil_node_to_string(node));
   3629 			}
   3630 			rc = SEPOL_ERR;
   3631 			goto exit;
   3632 		}
   3633 	}
   3634 
   3635 	if (node->flavor == CIL_MACRO) {
   3636 		if (pass != CIL_PASS_TIF && pass != CIL_PASS_MACRO) {
   3637 			*finished = CIL_TREE_SKIP_HEAD;
   3638 			rc = SEPOL_OK;
   3639 			goto exit;
   3640 		}
   3641 	}
   3642 
   3643 	if (node->flavor == CIL_BLOCK && ((((struct cil_block*)node->data)->is_abstract == CIL_TRUE) && (pass > CIL_PASS_BLKABS))) {
   3644 		*finished = CIL_TREE_SKIP_HEAD;
   3645 		rc = SEPOL_OK;
   3646 		goto exit;
   3647 	}
   3648 
   3649 	rc = __cil_resolve_ast_node(node, extra_args);
   3650 	if (rc == SEPOL_ENOENT) {
   3651 		enum cil_log_level lvl = CIL_ERR;
   3652 
   3653 		if (optstack != NULL) {
   3654 			lvl = CIL_WARN;
   3655 
   3656 			struct cil_optional *opt = (struct cil_optional *)optstack->data;
   3657 			struct cil_tree_node *opt_node = opt->datum.nodes->head->data;
   3658 			cil_tree_log(opt_node, lvl, "Disabling optional '%s'", opt->datum.name);
   3659 			/* disable an optional if something failed to resolve */
   3660 			opt->enabled = CIL_FALSE;
   3661 			rc = SEPOL_OK;
   3662 		}
   3663 
   3664 		cil_tree_log(node, lvl, "Failed to resolve %s statement", cil_node_to_string(node));
   3665 		goto exit;
   3666 	}
   3667 
   3668 	return rc;
   3669 
   3670 exit:
   3671 	return rc;
   3672 }
   3673 
   3674 int __cil_resolve_ast_first_child_helper(struct cil_tree_node *current, void *extra_args)
   3675 {
   3676 	int rc = SEPOL_ERR;
   3677 	struct cil_args_resolve *args = extra_args;
   3678 	struct cil_tree_node *optstack = NULL;
   3679 	struct cil_tree_node *parent = NULL;
   3680 	struct cil_tree_node *blockstack = NULL;
   3681 	struct cil_tree_node *new = NULL;
   3682 
   3683 	if (current == NULL || extra_args == NULL) {
   3684 		goto exit;
   3685 	}
   3686 
   3687 	optstack = args->optstack;
   3688 	parent = current->parent;
   3689 	blockstack = args->blockstack;
   3690 
   3691 	if (parent->flavor == CIL_OPTIONAL || parent->flavor == CIL_BLOCK) {
   3692 		/* push this node onto a stack */
   3693 		cil_tree_node_init(&new);
   3694 
   3695 		new->data = parent->data;
   3696 		new->flavor = parent->flavor;
   3697 
   3698 		if (parent->flavor == CIL_OPTIONAL) {
   3699 			if (optstack != NULL) {
   3700 				optstack->parent = new;
   3701 				new->cl_head = optstack;
   3702 			}
   3703 			args->optstack = new;
   3704 		} else if (parent->flavor == CIL_BLOCK) {
   3705 			if (blockstack != NULL) {
   3706 				blockstack->parent = new;
   3707 				new->cl_head = blockstack;
   3708 			}
   3709 			args->blockstack = new;
   3710 		}
   3711 	} else if (parent->flavor == CIL_BOOLEANIF) {
   3712 		args->boolif = parent;
   3713 	} else if (parent->flavor == CIL_MACRO) {
   3714 		args->macro = parent;
   3715 	}
   3716 
   3717 	return SEPOL_OK;
   3718 
   3719 exit:
   3720 	return rc;
   3721 
   3722 }
   3723 
   3724 int __cil_resolve_ast_last_child_helper(struct cil_tree_node *current, void *extra_args)
   3725 {
   3726 	int rc = SEPOL_ERR;
   3727 	struct cil_args_resolve *args = extra_args;
   3728 	struct cil_tree_node *parent = NULL;
   3729 	struct cil_tree_node *blockstack = NULL;
   3730 
   3731 	if (current == NULL ||  extra_args == NULL) {
   3732 		goto exit;
   3733 	}
   3734 
   3735 	parent = current->parent;
   3736 
   3737 	if (parent->flavor == CIL_MACRO) {
   3738 		args->macro = NULL;
   3739 	} else if (parent->flavor == CIL_OPTIONAL) {
   3740 		struct cil_tree_node *optstack;
   3741 
   3742 		if (((struct cil_optional *)parent->data)->enabled == CIL_FALSE) {
   3743 			*(args->changed) = CIL_TRUE;
   3744 			cil_tree_children_destroy(parent);
   3745 		}
   3746 
   3747 		/* pop off the stack */
   3748 		optstack = args->optstack;
   3749 		args->optstack = optstack->cl_head;
   3750 		if (optstack->cl_head) {
   3751 			optstack->cl_head->parent = NULL;
   3752 		}
   3753 		free(optstack);
   3754 	} else if (parent->flavor == CIL_BOOLEANIF) {
   3755 		args->boolif = NULL;
   3756 	} else if (parent->flavor == CIL_BLOCK) {
   3757 		/* pop off the stack */
   3758 		blockstack = args->blockstack;
   3759 		args->blockstack = blockstack->cl_head;
   3760 		if (blockstack->cl_head) {
   3761 			blockstack->cl_head->parent = NULL;
   3762 		}
   3763 		free(blockstack);
   3764 	}
   3765 
   3766 	return SEPOL_OK;
   3767 
   3768 exit:
   3769 	return rc;
   3770 }
   3771 
   3772 static void cil_destroy_tree_node_stack(struct cil_tree_node *curr)
   3773 {
   3774 	struct cil_tree_node *next;
   3775 	while (curr != NULL) {
   3776 		next = curr->cl_head;
   3777 		free(curr);
   3778 		curr = next;
   3779 	}
   3780 }
   3781 
   3782 int cil_resolve_ast(struct cil_db *db, struct cil_tree_node *current)
   3783 {
   3784 	int rc = SEPOL_ERR;
   3785 	struct cil_args_resolve extra_args;
   3786 	enum cil_pass pass = CIL_PASS_TIF;
   3787 	uint32_t changed = 0;
   3788 
   3789 	if (db == NULL || current == NULL) {
   3790 		goto exit;
   3791 	}
   3792 
   3793 	extra_args.db = db;
   3794 	extra_args.pass = pass;
   3795 	extra_args.changed = &changed;
   3796 	extra_args.last_resolved_name = NULL;
   3797 	extra_args.optstack = NULL;
   3798 	extra_args.boolif= NULL;
   3799 	extra_args.macro = NULL;
   3800 	extra_args.sidorder_lists = NULL;
   3801 	extra_args.classorder_lists = NULL;
   3802 	extra_args.unordered_classorder_lists = NULL;
   3803 	extra_args.catorder_lists = NULL;
   3804 	extra_args.sensitivityorder_lists = NULL;
   3805 	extra_args.in_list = NULL;
   3806 	extra_args.blockstack = NULL;
   3807 
   3808 	cil_list_init(&extra_args.sidorder_lists, CIL_LIST_ITEM);
   3809 	cil_list_init(&extra_args.classorder_lists, CIL_LIST_ITEM);
   3810 	cil_list_init(&extra_args.unordered_classorder_lists, CIL_LIST_ITEM);
   3811 	cil_list_init(&extra_args.catorder_lists, CIL_LIST_ITEM);
   3812 	cil_list_init(&extra_args.sensitivityorder_lists, CIL_LIST_ITEM);
   3813 	cil_list_init(&extra_args.in_list, CIL_IN);
   3814 	for (pass = CIL_PASS_TIF; pass < CIL_PASS_NUM; pass++) {
   3815 		extra_args.pass = pass;
   3816 		rc = cil_tree_walk(current, __cil_resolve_ast_node_helper, __cil_resolve_ast_first_child_helper, __cil_resolve_ast_last_child_helper, &extra_args);
   3817 		if (rc != SEPOL_OK) {
   3818 			cil_log(CIL_INFO, "Pass %i of resolution failed\n", pass);
   3819 			goto exit;
   3820 		}
   3821 
   3822 		if (pass == CIL_PASS_IN) {
   3823 			rc = cil_resolve_in_list(&extra_args);
   3824 			if (rc != SEPOL_OK) {
   3825 				goto exit;
   3826 			}
   3827 			cil_list_destroy(&extra_args.in_list, CIL_FALSE);
   3828 		}
   3829 
   3830 		if (pass == CIL_PASS_MISC1) {
   3831 			db->sidorder = __cil_ordered_lists_merge_all(&extra_args.sidorder_lists, NULL);
   3832 			if (db->sidorder == NULL) {
   3833 				rc = SEPOL_ERR;
   3834 				goto exit;
   3835 			}
   3836 			db->classorder = __cil_ordered_lists_merge_all(&extra_args.classorder_lists, &extra_args.unordered_classorder_lists);
   3837 			if (db->classorder == NULL) {
   3838 				rc = SEPOL_ERR;
   3839 				goto exit;
   3840 			}
   3841 			db->catorder = __cil_ordered_lists_merge_all(&extra_args.catorder_lists, NULL);
   3842 			if (db->catorder == NULL) {
   3843 				rc = SEPOL_ERR;
   3844 				goto exit;
   3845 			}
   3846 			cil_set_cat_values(db->catorder, db);
   3847 			db->sensitivityorder = __cil_ordered_lists_merge_all(&extra_args.sensitivityorder_lists, NULL);
   3848 			if (db->sensitivityorder == NULL) {
   3849 				rc = SEPOL_ERR;
   3850 				goto exit;
   3851 			}
   3852 
   3853 			rc = __cil_verify_ordered(current, CIL_SID);
   3854 			if (rc != SEPOL_OK) {
   3855 				goto exit;
   3856 			}
   3857 
   3858 			rc = __cil_verify_ordered(current, CIL_CLASS);
   3859 			if (rc != SEPOL_OK) {
   3860 				goto exit;
   3861 			}
   3862 
   3863 			rc = __cil_verify_ordered(current, CIL_CAT);
   3864 			if (rc != SEPOL_OK) {
   3865 				goto exit;
   3866 			}
   3867 
   3868 			rc = __cil_verify_ordered(current, CIL_SENS);
   3869 			if (rc != SEPOL_OK) {
   3870 				goto exit;
   3871 			}
   3872 		}
   3873 
   3874 		if (changed && (pass > CIL_PASS_CALL1)) {
   3875 			/* Need to re-resolve because an optional was disabled that contained
   3876 			 * one or more declarations. We only need to reset to the call1 pass
   3877 			 * because things done in the preceeding passes aren't allowed in
   3878 			 * optionals, and thus can't be disabled.
   3879 			 * Note: set pass to CIL_PASS_CALL1 because the pass++ will increment
   3880 			 * it to CIL_PASS_CALL2
   3881 			 */
   3882 			cil_log(CIL_INFO, "Resetting declarations\n");
   3883 
   3884 			if (pass >= CIL_PASS_MISC1) {
   3885 				__cil_ordered_lists_reset(&extra_args.sidorder_lists);
   3886 				__cil_ordered_lists_reset(&extra_args.classorder_lists);
   3887 				__cil_ordered_lists_reset(&extra_args.unordered_classorder_lists);
   3888 				__cil_ordered_lists_reset(&extra_args.catorder_lists);
   3889 				__cil_ordered_lists_reset(&extra_args.sensitivityorder_lists);
   3890 				cil_list_destroy(&db->sidorder, CIL_FALSE);
   3891 				cil_list_destroy(&db->classorder, CIL_FALSE);
   3892 				cil_list_destroy(&db->catorder, CIL_FALSE);
   3893 				cil_list_destroy(&db->sensitivityorder, CIL_FALSE);
   3894 			}
   3895 
   3896 			pass = CIL_PASS_CALL1;
   3897 
   3898 			rc = cil_reset_ast(current);
   3899 			if (rc != SEPOL_OK) {
   3900 				cil_log(CIL_ERR, "Failed to reset declarations\n");
   3901 				goto exit;
   3902 			}
   3903 		}
   3904 
   3905 		/* reset the arguments */
   3906 		changed = 0;
   3907 		while (extra_args.optstack != NULL) {
   3908 			cil_destroy_tree_node_stack(extra_args.optstack);
   3909 			extra_args.optstack = NULL;
   3910 		}
   3911 		while (extra_args.blockstack!= NULL) {
   3912 			cil_destroy_tree_node_stack(extra_args.blockstack);
   3913 			extra_args.blockstack = NULL;
   3914 		}
   3915 	}
   3916 
   3917 	rc = __cil_verify_initsids(db->sidorder);
   3918 	if (rc != SEPOL_OK) {
   3919 		goto exit;
   3920 	}
   3921 
   3922 	rc = SEPOL_OK;
   3923 exit:
   3924 	cil_destroy_tree_node_stack(extra_args.optstack);
   3925 	cil_destroy_tree_node_stack(extra_args.blockstack);
   3926 	__cil_ordered_lists_destroy(&extra_args.sidorder_lists);
   3927 	__cil_ordered_lists_destroy(&extra_args.classorder_lists);
   3928 	__cil_ordered_lists_destroy(&extra_args.catorder_lists);
   3929 	__cil_ordered_lists_destroy(&extra_args.sensitivityorder_lists);
   3930 	cil_list_destroy(&extra_args.in_list, CIL_FALSE);
   3931 	cil_list_destroy(&extra_args.unordered_classorder_lists, CIL_FALSE);
   3932 
   3933 	return rc;
   3934 }
   3935 
   3936 static int __cil_resolve_name_with_root(struct cil_db *db, char *name, enum cil_sym_index sym_index, struct cil_symtab_datum **datum)
   3937 {
   3938 	symtab_t *symtab = &((struct cil_root *)db->ast->root->data)->symtab[sym_index];
   3939 
   3940 	return cil_symtab_get_datum(symtab, name, datum);
   3941 }
   3942 
   3943 static int __cil_resolve_name_with_parents(struct cil_tree_node *node, char *name, enum cil_sym_index sym_index, struct cil_symtab_datum **datum)
   3944 {
   3945 	int rc = SEPOL_ERR;
   3946 	symtab_t *symtab = NULL;
   3947 
   3948 	while (node != NULL && rc != SEPOL_OK) {
   3949 		switch (node->flavor) {
   3950 		case CIL_ROOT:
   3951 			goto exit;
   3952 			break;
   3953 		case CIL_BLOCK:
   3954 			symtab = &((struct cil_block*)node->data)->symtab[sym_index];
   3955 			rc = cil_symtab_get_datum(symtab, name, datum);
   3956 			break;
   3957 		case CIL_BLOCKINHERIT: {
   3958 			struct cil_blockinherit *inherit = node->data;
   3959 			rc = __cil_resolve_name_with_parents(node->parent, name, sym_index, datum);
   3960 			if (rc != SEPOL_OK) {
   3961 				/* Continue search in original block's parent */
   3962 				rc = __cil_resolve_name_with_parents(NODE(inherit->block), name, sym_index, datum);
   3963 				goto exit;
   3964 			}
   3965 		}
   3966 			break;
   3967 		case CIL_MACRO: {
   3968 			struct cil_macro *macro = node->data;
   3969 			symtab = &macro->symtab[sym_index];
   3970 			rc = cil_symtab_get_datum(symtab, name, datum);
   3971 		}
   3972 			break;
   3973 		case CIL_CALL: {
   3974 			struct cil_call *call = node->data;
   3975 			rc = cil_resolve_name_call_args(call, name, sym_index, datum);
   3976 			if (rc != SEPOL_OK) {
   3977 				/* Continue search in macro's parent */
   3978 				rc = __cil_resolve_name_with_parents(NODE(call->macro)->parent, name, sym_index, datum);
   3979 			}
   3980 		}
   3981 			break;
   3982 		case CIL_IN:
   3983 			/* In block symtabs only exist before resolving the AST */
   3984 		case CIL_CONDBLOCK:
   3985 			/* Cond block symtabs only exist before resolving the AST */
   3986 		default:
   3987 			break;
   3988 		}
   3989 
   3990 		node = node->parent;
   3991 	}
   3992 
   3993 exit:
   3994 	return rc;
   3995 }
   3996 
   3997 static int __cil_resolve_name_helper(struct cil_db *db, struct cil_tree_node *node, char *name, enum cil_sym_index sym_index, struct cil_symtab_datum **datum)
   3998 {
   3999 	int rc = SEPOL_ERR;
   4000 
   4001 	rc = __cil_resolve_name_with_parents(node, name, sym_index, datum);
   4002 	if (rc != SEPOL_OK) {
   4003 		rc = __cil_resolve_name_with_root(db, name, sym_index, datum);
   4004 	}
   4005 	return rc;
   4006 }
   4007 
   4008 int cil_resolve_name(struct cil_tree_node *ast_node, char *name, enum cil_sym_index sym_index, void *extra_args, struct cil_symtab_datum **datum)
   4009 {
   4010 	int rc = SEPOL_ERR;
   4011 	struct cil_args_resolve *args = extra_args;
   4012 	struct cil_db *db = args->db;
   4013 	struct cil_tree_node *node = NULL;
   4014 
   4015 	if (name == NULL) {
   4016 		cil_log(CIL_ERR, "Invalid call to cil_resolve_name\n");
   4017 		goto exit;
   4018 	}
   4019 
   4020 	*datum = NULL;
   4021 
   4022 	if (strchr(name,'.') == NULL) {
   4023 		/* No '.' in name */
   4024 		rc = __cil_resolve_name_helper(db, ast_node->parent, name, sym_index, datum);
   4025 		if (rc != SEPOL_OK) {
   4026 			goto exit;
   4027 		}
   4028 	} else {
   4029 		char *sp = NULL;
   4030 		char *name_dup = cil_strdup(name);
   4031 		char *current = strtok_r(name_dup, ".", &sp);
   4032 		char *next = strtok_r(NULL, ".", &sp);
   4033 		symtab_t *symtab = NULL;
   4034 
   4035 		if (current == NULL) {
   4036 			/* Only dots */
   4037 			cil_tree_log(ast_node, CIL_ERR, "Invalid name %s", name);
   4038 			free(name_dup);
   4039 			goto exit;
   4040 		}
   4041 
   4042 		node = ast_node;
   4043 		if (*name == '.') {
   4044 			/* Leading '.' */
   4045 			symtab = &((struct cil_root *)db->ast->root->data)->symtab[CIL_SYM_BLOCKS];
   4046 		} else {
   4047 			rc = __cil_resolve_name_helper(db, node->parent, current, CIL_SYM_BLOCKS, datum);
   4048 			if (rc != SEPOL_OK) {
   4049 				free(name_dup);
   4050 				goto exit;
   4051 			}
   4052 			symtab = (*datum)->symtab;
   4053 		}
   4054 		/* Keep looking up blocks by name until only last part of name remains */
   4055 		while (next != NULL) {
   4056 			rc = cil_symtab_get_datum(symtab, current, datum);
   4057 			if (rc != SEPOL_OK) {
   4058 				free(name_dup);
   4059 				goto exit;
   4060 			}
   4061 			node = NODE(*datum);
   4062 			if (node->flavor == CIL_BLOCK) {
   4063 				symtab = &((struct cil_block*)node->data)->symtab[CIL_SYM_BLOCKS];
   4064 			} else {
   4065 				if (ast_node->flavor != CIL_IN) {
   4066 					cil_log(CIL_WARN, "Can only use %s name for name resolution in \"in\" blocks\n", cil_node_to_string(node));
   4067 					free(name_dup);
   4068 					rc = SEPOL_ERR;
   4069 					goto exit;
   4070 				}
   4071 				if (node->flavor == CIL_MACRO) {
   4072 					struct cil_macro *macro = node->data;
   4073 					symtab = &macro->symtab[sym_index];
   4074 				} else {
   4075 					/* optional */
   4076 					symtab = (*datum)->symtab;
   4077 				}
   4078 			}
   4079 			current = next;
   4080 			next = strtok_r(NULL, ".", &sp);
   4081 		}
   4082 		symtab = &(symtab[sym_index]);
   4083 		rc = cil_symtab_get_datum(symtab, current, datum);
   4084 		free(name_dup);
   4085 		if (rc != SEPOL_OK) {
   4086 			goto exit;
   4087 		}
   4088 	}
   4089 
   4090 	rc = SEPOL_OK;
   4091 
   4092 exit:
   4093 	if (rc != SEPOL_OK) {
   4094 		*datum = NULL;
   4095 	}
   4096 
   4097 	if (*datum != NULL) {
   4098 		/* If this datum is an alias, then return the actual node
   4099 		 * This depends on aliases already being processed
   4100 		 */
   4101 		node = NODE(*datum);
   4102 		if (node->flavor == CIL_TYPEALIAS || node->flavor == CIL_SENSALIAS
   4103 			|| node->flavor == CIL_CATALIAS) {
   4104 			struct cil_alias *alias = (struct cil_alias *)(*datum);
   4105 			if (alias->actual) {
   4106 				*datum = alias->actual;
   4107 			}
   4108 		}
   4109 	}
   4110 
   4111 	args->last_resolved_name = name;
   4112 
   4113 	return rc;
   4114 }
   4115