1 files changed, 0 insertions, 487 deletions
diff --git a/external/unbound/daemon/acl_list.c b/external/unbound/daemon/acl_list.c
deleted file mode 100644
index f7d71b9fd..000000000
--- a/external/unbound/daemon/acl_list.c
+++ /dev/null
@@ -1,487 +0,0 @@
-/*
- * daemon/acl_list.h - client access control storage for the server.
- *
- * Copyright (c) 2007, NLnet Labs. All rights reserved.
- *
- * This software is open source.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 
- * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 
- * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 
- * Neither the name of the NLNET LABS nor the names of its contributors may
- * be used to endorse or promote products derived from this software without
- * specific prior written permission.
- * 
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
- * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/**
- * \file
- *
- * This file helps the server keep out queries from outside sources, that
- * should not be answered.
- */
-#include "config.h"
-#include "daemon/acl_list.h"
-#include "util/regional.h"
-#include "util/log.h"
-#include "util/config_file.h"
-#include "util/net_help.h"
-#include "services/localzone.h"
-#include "sldns/str2wire.h"
-
-struct acl_list* 
-acl_list_create(void)
-{
-	struct acl_list* acl = (struct acl_list*)calloc(1,
-		sizeof(struct acl_list));
-	if(!acl)
-		return NULL;
-	acl->region = regional_create();
-	if(!acl->region) {
-		acl_list_delete(acl);
-		return NULL;
-	}
-	return acl;
-}
-
-void 
-acl_list_delete(struct acl_list* acl)
-{
-	if(!acl) 
-		return;
-	regional_destroy(acl->region);
-	free(acl);
-}
-
-/** insert new address into acl_list structure */
-static struct acl_addr*
-acl_list_insert(struct acl_list* acl, struct sockaddr_storage* addr, 
-	socklen_t addrlen, int net, enum acl_access control, 
-	int complain_duplicates)
-{
-	struct acl_addr* node = regional_alloc_zero(acl->region,
-		sizeof(struct acl_addr));
-	if(!node)
-		return NULL;
-	node->control = control;
-	if(!addr_tree_insert(&acl->tree, &node->node, addr, addrlen, net)) {
-		if(complain_duplicates)
-			verbose(VERB_QUERY, "duplicate acl address ignored.");
-	}
-	return node;
-}
-
-/** apply acl_list string */
-static int
-acl_list_str_cfg(struct acl_list* acl, const char* str, const char* s2,
-	int complain_duplicates)
-{
-	struct sockaddr_storage addr;
-	int net;
-	socklen_t addrlen;
-	enum acl_access control;
-	if(strcmp(s2, "allow") == 0)
-		control = acl_allow;
-	else if(strcmp(s2, "deny") == 0)
-		control = acl_deny;
-	else if(strcmp(s2, "refuse") == 0)
-		control = acl_refuse;
-	else if(strcmp(s2, "deny_non_local") == 0)
-		control = acl_deny_non_local;
-	else if(strcmp(s2, "refuse_non_local") == 0)
-		control = acl_refuse_non_local;
-	else if(strcmp(s2, "allow_snoop") == 0)
-		control = acl_allow_snoop;
-	else {
-		log_err("access control type %s unknown", str);
-		return 0;
-	}
-	if(!netblockstrtoaddr(str, UNBOUND_DNS_PORT, &addr, &addrlen, &net)) {
-		log_err("cannot parse access control: %s %s", str, s2);
-		return 0;
-	}
-	if(!acl_list_insert(acl, &addr, addrlen, net, control, 
-		complain_duplicates)) {
-		log_err("out of memory");
-		return 0;
-	}
-	return 1;
-}
-
-/** find or create node (NULL on parse or error) */
-static struct acl_addr*
-acl_find_or_create(struct acl_list* acl, const char* str)
-{
-	struct acl_addr* node;
-	struct sockaddr_storage addr;
-	int net;
-	socklen_t addrlen;
-	if(!netblockstrtoaddr(str, UNBOUND_DNS_PORT, &addr, &addrlen, &net)) {
-		log_err("cannot parse netblock: %s", str);
-		return NULL;
-	}
-	/* find or create node */
-	if(!(node=(struct acl_addr*)addr_tree_find(&acl->tree, &addr,
-		addrlen, net))) {
-		/* create node, type 'allow' since otherwise tags are
-		 * pointless, can override with specific access-control: cfg */
-		if(!(node=(struct acl_addr*)acl_list_insert(acl, &addr,
-			addrlen, net, acl_allow, 1))) {
-			log_err("out of memory");
-			return NULL;
-		}
-	}
-	return node;
-}
-
-/** apply acl_tag string */
-static int
-acl_list_tags_cfg(struct acl_list* acl, const char* str, uint8_t* bitmap,
-	size_t bitmaplen)
-{
-	struct acl_addr* node;
-	if(!(node=acl_find_or_create(acl, str)))
-		return 0;
-	node->taglen = bitmaplen;
-	node->taglist = regional_alloc_init(acl->region, bitmap, bitmaplen);
-	if(!node->taglist) {
-		log_err("out of memory");
-		return 0;
-	}
-	return 1;
-}
-
-/** apply acl_view string */
-static int
-acl_list_view_cfg(struct acl_list* acl, const char* str, const char* str2,
-	struct views* vs)
-{
-	struct acl_addr* node;
-	if(!(node=acl_find_or_create(acl, str)))
-		return 0;
-	node->view = views_find_view(vs, str2, 0 /* get read lock*/);
-	if(!node->view) {
-		log_err("no view with name: %s", str2);
-		return 0;
-	}
-	lock_rw_unlock(&node->view->lock);
-	return 1;
-}
-
-/** apply acl_tag_action string */
-static int
-acl_list_tag_action_cfg(struct acl_list* acl, struct config_file* cfg,
-	const char* str, const char* tag, const char* action)
-{
-	struct acl_addr* node;
-	int tagid;
-	enum localzone_type t;
-	if(!(node=acl_find_or_create(acl, str)))
-		return 0;
-	/* allocate array if not yet */
-	if(!node->tag_actions) {
-		node->tag_actions = (uint8_t*)regional_alloc_zero(acl->region,
-			sizeof(*node->tag_actions)*cfg->num_tags);
-		if(!node->tag_actions) {
-			log_err("out of memory");
-			return 0;
-		}
-		node->tag_actions_size = (size_t)cfg->num_tags;
-	}
-	/* parse tag */
-	if((tagid=find_tag_id(cfg, tag)) == -1) {
-		log_err("cannot parse tag (define-tag it): %s %s", str, tag);
-		return 0;
-	}
-	if((size_t)tagid >= node->tag_actions_size) {
-		log_err("tagid too large for array %s %s", str, tag);
-		return 0;
-	}
-	if(!local_zone_str2type(action, &t)) {
-		log_err("cannot parse access control action type: %s %s %s",
-			str, tag, action);
-		return 0;
-	}
-	node->tag_actions[tagid] = (uint8_t)t;
-	return 1;
-}
-
-/** check wire data parse */
-static int
-check_data(const char* data, const struct config_strlist* head)
-{
-	char buf[65536];
-	uint8_t rr[LDNS_RR_BUF_SIZE];
-	size_t len = sizeof(rr);
-	int res;
-	/* '.' is sufficient for validation, and it makes the call to
-	 * sldns_wirerr_get_type() simpler below. */
-	snprintf(buf, sizeof(buf), "%s %s", ".", data);
-	res = sldns_str2wire_rr_buf(buf, rr, &len, NULL, 3600, NULL, 0,
-		NULL, 0);
-
-	/* Reject it if we would end up having CNAME and other data (including
-	 * another CNAME) for the same tag. */
-	if(res == 0 && head) {
-		const char* err_data = NULL;
-
-		if(sldns_wirerr_get_type(rr, len, 1) == LDNS_RR_TYPE_CNAME) {
-			/* adding CNAME while other data already exists. */
-			err_data = data;
-		} else {
-			snprintf(buf, sizeof(buf), "%s %s", ".", head->str);
-			len = sizeof(rr);
-			res = sldns_str2wire_rr_buf(buf, rr, &len, NULL, 3600,
-				NULL, 0, NULL, 0);
-			if(res != 0) {
-				/* This should be impossible here as head->str
-				 * has been validated, but we check it just in
-				 * case. */
-				return 0;
-			}
-			if(sldns_wirerr_get_type(rr, len, 1) ==
-				LDNS_RR_TYPE_CNAME) /* already have CNAME */
-				err_data = head->str;
-		}
-		if(err_data) {
-			log_err("redirect tag data '%s' must not coexist with "
-				"other data.", err_data);
-			return 0;
-		}
-	}
-	if(res == 0)
-		return 1;
-	log_err("rr data [char %d] parse error %s",
-		(int)LDNS_WIREPARSE_OFFSET(res)-13,
-		sldns_get_errorstr_parse(res));
-	return 0;
-}
-
-/** apply acl_tag_data string */
-static int
-acl_list_tag_data_cfg(struct acl_list* acl, struct config_file* cfg,
-	const char* str, const char* tag, const char* data)
-{
-	struct acl_addr* node;
-	int tagid;
-	char* dupdata;
-	if(!(node=acl_find_or_create(acl, str)))
-		return 0;
-	/* allocate array if not yet */
-	if(!node->tag_datas) {
-		node->tag_datas = (struct config_strlist**)regional_alloc_zero(
-			acl->region, sizeof(*node->tag_datas)*cfg->num_tags);
-		if(!node->tag_datas) {
-			log_err("out of memory");
-			return 0;
-		}
-		node->tag_datas_size = (size_t)cfg->num_tags;
-	}
-	/* parse tag */
-	if((tagid=find_tag_id(cfg, tag)) == -1) {
-		log_err("cannot parse tag (define-tag it): %s %s", str, tag);
-		return 0;
-	}
-	if((size_t)tagid >= node->tag_datas_size) {
-		log_err("tagid too large for array %s %s", str, tag);
-		return 0;
-	}
-
-	/* check data? */
-	if(!check_data(data, node->tag_datas[tagid])) {
-		log_err("cannot parse access-control-tag data: %s %s '%s'",
-			str, tag, data);
-		return 0;
-	}
-
-	dupdata = regional_strdup(acl->region, data);
-	if(!dupdata) {
-		log_err("out of memory");
-		return 0;
-	}
-	if(!cfg_region_strlist_insert(acl->region,
-		&(node->tag_datas[tagid]), dupdata)) {
-		log_err("out of memory");
-		return 0;
-	}
-	return 1;
-}
-
-/** read acl_list config */
-static int 
-read_acl_list(struct acl_list* acl, struct config_file* cfg)
-{
-	struct config_str2list* p;
-	for(p = cfg->acls; p; p = p->next) {
-		log_assert(p->str && p->str2);
-		if(!acl_list_str_cfg(acl, p->str, p->str2, 1))
-			return 0;
-	}
-	return 1;
-}
-
-/** read acl tags config */
-static int 
-read_acl_tags(struct acl_list* acl, struct config_file* cfg)
-{
-	struct config_strbytelist* np, *p = cfg->acl_tags;
-	cfg->acl_tags = NULL;
-	while(p) {
-		log_assert(p->str && p->str2);
-		if(!acl_list_tags_cfg(acl, p->str, p->str2, p->str2len)) {
-			config_del_strbytelist(p);
-			return 0;
-		}
-		/* free the items as we go to free up memory */
-		np = p->next;
-		free(p->str);
-		free(p->str2);
-		free(p);
-		p = np;
-	}
-	return 1;
-}
-
-/** read acl view config */
-static int 
-read_acl_view(struct acl_list* acl, struct config_file* cfg, struct views* v)
-{
-	struct config_str2list* np, *p = cfg->acl_view;
-	cfg->acl_view = NULL;
-	while(p) {
-		log_assert(p->str && p->str2);
-		if(!acl_list_view_cfg(acl, p->str, p->str2, v)) {
-			return 0;
-		}
-		/* free the items as we go to free up memory */
-		np = p->next;
-		free(p->str);
-		free(p->str2);
-		free(p);
-		p = np;
-	}
-	return 1;
-}
-
-/** read acl tag actions config */
-static int 
-read_acl_tag_actions(struct acl_list* acl, struct config_file* cfg)
-{
-	struct config_str3list* p, *np;
-	p = cfg->acl_tag_actions;
-	cfg->acl_tag_actions = NULL;
-	while(p) {
-		log_assert(p->str && p->str2 && p->str3);
-		if(!acl_list_tag_action_cfg(acl, cfg, p->str, p->str2,
-			p->str3)) {
-			config_deltrplstrlist(p);
-			return 0;
-		}
-		/* free the items as we go to free up memory */
-		np = p->next;
-		free(p->str);
-		free(p->str2);
-		free(p->str3);
-		free(p);
-		p = np;
-	}
-	return 1;
-}
-
-/** read acl tag datas config */
-static int 
-read_acl_tag_datas(struct acl_list* acl, struct config_file* cfg)
-{
-	struct config_str3list* p, *np;
-	p = cfg->acl_tag_datas;
-	cfg->acl_tag_datas = NULL;
-	while(p) {
-		log_assert(p->str && p->str2 && p->str3);
-		if(!acl_list_tag_data_cfg(acl, cfg, p->str, p->str2, p->str3)) {
-			config_deltrplstrlist(p);
-			return 0;
-		}
-		/* free the items as we go to free up memory */
-		np = p->next;
-		free(p->str);
-		free(p->str2);
-		free(p->str3);
-		free(p);
-		p = np;
-	}
-	return 1;
-}
-
-int 
-acl_list_apply_cfg(struct acl_list* acl, struct config_file* cfg,
-	struct views* v)
-{
-	regional_free_all(acl->region);
-	addr_tree_init(&acl->tree);
-	if(!read_acl_list(acl, cfg))
-		return 0;
-	if(!read_acl_view(acl, cfg, v))
-		return 0;
-	if(!read_acl_tags(acl, cfg))
-		return 0;
-	if(!read_acl_tag_actions(acl, cfg))
-		return 0;
-	if(!read_acl_tag_datas(acl, cfg))
-		return 0;
-	/* insert defaults, with '0' to ignore them if they are duplicates */
-	if(!acl_list_str_cfg(acl, "0.0.0.0/0", "refuse", 0))
-		return 0;
-	if(!acl_list_str_cfg(acl, "127.0.0.0/8", "allow", 0))
-		return 0;
-	if(cfg->do_ip6) {
-		if(!acl_list_str_cfg(acl, "::0/0", "refuse", 0))
-			return 0;
-		if(!acl_list_str_cfg(acl, "::1", "allow", 0))
-			return 0;
-		if(!acl_list_str_cfg(acl, "::ffff:127.0.0.1", "allow", 0))
-			return 0;
-	}
-	addr_tree_init_parents(&acl->tree);
-	return 1;
-}
-
-enum acl_access 
-acl_get_control(struct acl_addr* acl)
-{
-	if(acl) return acl->control;
-	return acl_deny;
-}
-
-struct acl_addr*
-acl_addr_lookup(struct acl_list* acl, struct sockaddr_storage* addr,
-        socklen_t addrlen)
-{
-	return (struct acl_addr*)addr_tree_lookup(&acl->tree,
-		addr, addrlen);
-}
-
-size_t 
-acl_list_get_mem(struct acl_list* acl)
-{
-	if(!acl) return 0;
-	return sizeof(*acl) + regional_get_mem(acl->region);
-}