Reapply643f9a0581
.64d318ea98
was a mismerge during fake rebase. Let's reapply it. Changes include: Added ACL per interface, proxy protocol and bug fixes. Announcement: https://nlnetlabs.nl/news/2022/Oct/13/unbound-1.17.0-released/ Merge commit '643f9a0581e8aac7eb790ced1164748939829826' into main
824 lines
21 KiB
C
824 lines
21 KiB
C
/*
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* daemon/acl_list.h - client access control storage for the server.
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*
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* Copyright (c) 2007, NLnet Labs. All rights reserved.
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*
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* This software is open source.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of the NLNET LABS nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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*
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* This file helps the server keep out queries from outside sources, that
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* should not be answered.
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*/
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#include "config.h"
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#include "daemon/acl_list.h"
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#include "util/regional.h"
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#include "util/log.h"
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#include "util/config_file.h"
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#include "util/net_help.h"
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#include "services/localzone.h"
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#include "services/listen_dnsport.h"
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#include "sldns/str2wire.h"
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struct acl_list*
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acl_list_create(void)
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{
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struct acl_list* acl = (struct acl_list*)calloc(1,
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sizeof(struct acl_list));
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if(!acl)
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return NULL;
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acl->region = regional_create();
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if(!acl->region) {
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acl_list_delete(acl);
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return NULL;
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}
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return acl;
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}
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void
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acl_list_delete(struct acl_list* acl)
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{
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if(!acl)
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return;
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regional_destroy(acl->region);
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free(acl);
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}
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/** insert new address into acl_list structure */
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static struct acl_addr*
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acl_list_insert(struct acl_list* acl, struct sockaddr_storage* addr,
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socklen_t addrlen, int net, enum acl_access control,
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int complain_duplicates)
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{
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struct acl_addr* node = regional_alloc_zero(acl->region,
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sizeof(struct acl_addr));
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if(!node)
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return NULL;
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node->control = control;
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if(!addr_tree_insert(&acl->tree, &node->node, addr, addrlen, net)) {
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if(complain_duplicates)
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verbose(VERB_QUERY, "duplicate acl address ignored.");
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}
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return node;
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}
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/** parse str to acl_access enum */
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static int
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parse_acl_access(const char* str, enum acl_access* control)
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{
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if(strcmp(str, "allow") == 0)
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*control = acl_allow;
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else if(strcmp(str, "deny") == 0)
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*control = acl_deny;
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else if(strcmp(str, "refuse") == 0)
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*control = acl_refuse;
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else if(strcmp(str, "deny_non_local") == 0)
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*control = acl_deny_non_local;
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else if(strcmp(str, "refuse_non_local") == 0)
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*control = acl_refuse_non_local;
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else if(strcmp(str, "allow_snoop") == 0)
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*control = acl_allow_snoop;
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else if(strcmp(str, "allow_setrd") == 0)
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*control = acl_allow_setrd;
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else {
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log_err("access control type %s unknown", str);
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return 0;
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}
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return 1;
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}
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/** apply acl_list string */
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static int
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acl_list_str_cfg(struct acl_list* acl, const char* str, const char* s2,
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int complain_duplicates)
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{
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struct sockaddr_storage addr;
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int net;
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socklen_t addrlen;
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enum acl_access control;
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if(!parse_acl_access(s2, &control)) {
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return 0;
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}
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if(!netblockstrtoaddr(str, UNBOUND_DNS_PORT, &addr, &addrlen, &net)) {
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log_err("cannot parse access control: %s %s", str, s2);
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return 0;
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}
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if(!acl_list_insert(acl, &addr, addrlen, net, control,
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complain_duplicates)) {
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log_err("out of memory");
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return 0;
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}
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return 1;
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}
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/** find or create node (NULL on parse or error) */
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static struct acl_addr*
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acl_find_or_create_str2addr(struct acl_list* acl, const char* str,
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int is_interface, int port)
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{
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struct acl_addr* node;
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struct sockaddr_storage addr;
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socklen_t addrlen;
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int net = (str_is_ip6(str)?128:32);
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if(is_interface) {
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if(!extstrtoaddr(str, &addr, &addrlen, port)) {
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log_err("cannot parse interface: %s", str);
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return NULL;
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}
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} else {
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if(!netblockstrtoaddr(str, UNBOUND_DNS_PORT, &addr, &addrlen, &net)) {
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log_err("cannot parse netblock: %s", str);
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return NULL;
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}
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}
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/* find or create node */
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if(!(node=(struct acl_addr*)addr_tree_find(&acl->tree, &addr,
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addrlen, net)) && !is_interface) {
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/* create node, type 'allow' since otherwise tags are
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* pointless, can override with specific access-control: cfg */
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if(!(node=(struct acl_addr*)acl_list_insert(acl, &addr,
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addrlen, net, acl_allow, 1))) {
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log_err("out of memory");
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return NULL;
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}
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}
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return node;
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}
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/** find or create node (NULL on error) */
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static struct acl_addr*
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acl_find_or_create(struct acl_list* acl, struct sockaddr_storage* addr,
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socklen_t addrlen, enum acl_access control)
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{
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struct acl_addr* node;
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int net = (addr_is_ip6(addr, addrlen)?128:32);
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/* find or create node */
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if(!(node=(struct acl_addr*)addr_tree_find(&acl->tree, addr,
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addrlen, net))) {
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/* create node;
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* can override with specific access-control: cfg */
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if(!(node=(struct acl_addr*)acl_list_insert(acl, addr,
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addrlen, net, control, 1))) {
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log_err("out of memory");
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return NULL;
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}
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}
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return node;
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}
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/** apply acl_interface string */
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static int
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acl_interface_str_cfg(struct acl_list* acl_interface, const char* iface,
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const char* s2, int port)
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{
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struct acl_addr* node;
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enum acl_access control;
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if(!parse_acl_access(s2, &control)) {
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return 0;
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}
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if(!(node=acl_find_or_create_str2addr(acl_interface, iface, 1, port))) {
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log_err("cannot update ACL on non-configured interface: %s %d",
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iface, port);
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return 0;
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}
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node->control = control;
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return 1;
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}
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struct acl_addr*
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acl_interface_insert(struct acl_list* acl_interface,
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struct sockaddr_storage* addr, socklen_t addrlen,
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enum acl_access control)
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{
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return acl_find_or_create(acl_interface, addr, addrlen, control);
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}
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/** apply acl_tag string */
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static int
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acl_list_tags_cfg(struct acl_list* acl, const char* str, uint8_t* bitmap,
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size_t bitmaplen, int is_interface, int port)
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{
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struct acl_addr* node;
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if(!(node=acl_find_or_create_str2addr(acl, str, is_interface, port))) {
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if(is_interface)
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log_err("non-configured interface: %s", str);
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return 0;
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}
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node->taglen = bitmaplen;
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node->taglist = regional_alloc_init(acl->region, bitmap, bitmaplen);
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if(!node->taglist) {
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log_err("out of memory");
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return 0;
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}
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return 1;
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}
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/** apply acl_view string */
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static int
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acl_list_view_cfg(struct acl_list* acl, const char* str, const char* str2,
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struct views* vs, int is_interface, int port)
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{
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struct acl_addr* node;
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if(!(node=acl_find_or_create_str2addr(acl, str, is_interface, port))) {
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if(is_interface)
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log_err("non-configured interface: %s", str);
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return 0;
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}
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node->view = views_find_view(vs, str2, 0 /* get read lock*/);
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if(!node->view) {
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log_err("no view with name: %s", str2);
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return 0;
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}
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lock_rw_unlock(&node->view->lock);
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return 1;
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}
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/** apply acl_tag_action string */
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static int
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acl_list_tag_action_cfg(struct acl_list* acl, struct config_file* cfg,
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const char* str, const char* tag, const char* action,
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int is_interface, int port)
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{
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struct acl_addr* node;
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int tagid;
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enum localzone_type t;
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if(!(node=acl_find_or_create_str2addr(acl, str, is_interface, port))) {
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if(is_interface)
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log_err("non-configured interface: %s", str);
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return 0;
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}
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/* allocate array if not yet */
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if(!node->tag_actions) {
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node->tag_actions = (uint8_t*)regional_alloc_zero(acl->region,
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sizeof(*node->tag_actions)*cfg->num_tags);
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if(!node->tag_actions) {
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log_err("out of memory");
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return 0;
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}
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node->tag_actions_size = (size_t)cfg->num_tags;
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}
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/* parse tag */
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if((tagid=find_tag_id(cfg, tag)) == -1) {
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log_err("cannot parse tag (define-tag it): %s %s", str, tag);
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return 0;
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}
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if((size_t)tagid >= node->tag_actions_size) {
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log_err("tagid too large for array %s %s", str, tag);
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return 0;
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}
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if(!local_zone_str2type(action, &t)) {
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log_err("cannot parse access control action type: %s %s %s",
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str, tag, action);
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return 0;
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}
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node->tag_actions[tagid] = (uint8_t)t;
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return 1;
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}
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/** check wire data parse */
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static int
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check_data(const char* data, const struct config_strlist* head)
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{
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char buf[65536];
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uint8_t rr[LDNS_RR_BUF_SIZE];
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size_t len = sizeof(rr);
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int res;
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/* '.' is sufficient for validation, and it makes the call to
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* sldns_wirerr_get_type() simpler below. */
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snprintf(buf, sizeof(buf), "%s %s", ".", data);
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res = sldns_str2wire_rr_buf(buf, rr, &len, NULL, 3600, NULL, 0,
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NULL, 0);
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/* Reject it if we would end up having CNAME and other data (including
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* another CNAME) for the same tag. */
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if(res == 0 && head) {
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const char* err_data = NULL;
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if(sldns_wirerr_get_type(rr, len, 1) == LDNS_RR_TYPE_CNAME) {
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/* adding CNAME while other data already exists. */
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err_data = data;
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} else {
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snprintf(buf, sizeof(buf), "%s %s", ".", head->str);
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len = sizeof(rr);
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res = sldns_str2wire_rr_buf(buf, rr, &len, NULL, 3600,
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NULL, 0, NULL, 0);
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if(res != 0) {
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/* This should be impossible here as head->str
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* has been validated, but we check it just in
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* case. */
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return 0;
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}
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if(sldns_wirerr_get_type(rr, len, 1) ==
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LDNS_RR_TYPE_CNAME) /* already have CNAME */
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err_data = head->str;
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}
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if(err_data) {
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log_err("redirect tag data '%s' must not coexist with "
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"other data.", err_data);
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return 0;
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}
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}
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if(res == 0)
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return 1;
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log_err("rr data [char %d] parse error %s",
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(int)LDNS_WIREPARSE_OFFSET(res)-2,
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sldns_get_errorstr_parse(res));
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return 0;
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}
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/** apply acl_tag_data string */
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static int
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acl_list_tag_data_cfg(struct acl_list* acl, struct config_file* cfg,
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const char* str, const char* tag, const char* data,
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int is_interface, int port)
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{
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struct acl_addr* node;
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int tagid;
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char* dupdata;
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if(!(node=acl_find_or_create_str2addr(acl, str, is_interface, port))) {
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if(is_interface)
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log_err("non-configured interface: %s", str);
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return 0;
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}
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/* allocate array if not yet */
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if(!node->tag_datas) {
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node->tag_datas = (struct config_strlist**)regional_alloc_zero(
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acl->region, sizeof(*node->tag_datas)*cfg->num_tags);
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if(!node->tag_datas) {
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log_err("out of memory");
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return 0;
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}
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node->tag_datas_size = (size_t)cfg->num_tags;
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}
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/* parse tag */
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if((tagid=find_tag_id(cfg, tag)) == -1) {
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log_err("cannot parse tag (define-tag it): %s %s", str, tag);
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return 0;
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}
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if((size_t)tagid >= node->tag_datas_size) {
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log_err("tagid too large for array %s %s", str, tag);
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return 0;
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}
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/* check data? */
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if(!check_data(data, node->tag_datas[tagid])) {
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log_err("cannot parse access-control-tag data: %s %s '%s'",
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str, tag, data);
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return 0;
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}
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dupdata = regional_strdup(acl->region, data);
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if(!dupdata) {
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log_err("out of memory");
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return 0;
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}
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if(!cfg_region_strlist_insert(acl->region,
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&(node->tag_datas[tagid]), dupdata)) {
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log_err("out of memory");
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return 0;
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}
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return 1;
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}
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/** read acl_list config */
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static int
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read_acl_list(struct acl_list* acl, struct config_str2list* acls)
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{
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struct config_str2list* p;
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for(p = acls; p; p = p->next) {
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log_assert(p->str && p->str2);
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if(!acl_list_str_cfg(acl, p->str, p->str2, 1))
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return 0;
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}
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return 1;
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}
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|
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/** read acl view config */
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static int
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read_acl_view(struct acl_list* acl, struct config_str2list** acl_view,
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struct views* v)
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{
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struct config_str2list* np, *p = *acl_view;
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*acl_view = NULL;
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while(p) {
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log_assert(p->str && p->str2);
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if(!acl_list_view_cfg(acl, p->str, p->str2, v, 0, 0)) {
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config_deldblstrlist(p);
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return 0;
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}
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/* free the items as we go to free up memory */
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np = p->next;
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free(p->str);
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free(p->str2);
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free(p);
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p = np;
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}
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return 1;
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}
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|
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/** read acl tags config */
|
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static int
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read_acl_tags(struct acl_list* acl, struct config_strbytelist** acl_tags)
|
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{
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struct config_strbytelist* np, *p = *acl_tags;
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*acl_tags = NULL;
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while(p) {
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log_assert(p->str && p->str2);
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if(!acl_list_tags_cfg(acl, p->str, p->str2, p->str2len, 0, 0)) {
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config_del_strbytelist(p);
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return 0;
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}
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/* free the items as we go to free up memory */
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np = p->next;
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free(p->str);
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free(p->str2);
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free(p);
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p = np;
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}
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return 1;
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}
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|
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/** read acl tag actions config */
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static int
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read_acl_tag_actions(struct acl_list* acl, struct config_file* cfg,
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struct config_str3list** acl_tag_actions)
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{
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struct config_str3list* p, *np;
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p = *acl_tag_actions;
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*acl_tag_actions = NULL;
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while(p) {
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log_assert(p->str && p->str2 && p->str3);
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if(!acl_list_tag_action_cfg(acl, cfg, p->str, p->str2,
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p->str3, 0, 0)) {
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config_deltrplstrlist(p);
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return 0;
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}
|
|
/* free the items as we go to free up memory */
|
|
np = p->next;
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free(p->str);
|
|
free(p->str2);
|
|
free(p->str3);
|
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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** acl_tag_datas)
|
|
{
|
|
struct config_str3list* p, *np;
|
|
p = *acl_tag_datas;
|
|
*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,
|
|
0, 0)) {
|
|
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->acls))
|
|
return 0;
|
|
if(!read_acl_view(acl, &cfg->acl_view, v))
|
|
return 0;
|
|
if(!read_acl_tags(acl, &cfg->acl_tags))
|
|
return 0;
|
|
if(!read_acl_tag_actions(acl, cfg, &cfg->acl_tag_actions))
|
|
return 0;
|
|
if(!read_acl_tag_datas(acl, cfg, &cfg->acl_tag_datas))
|
|
return 0;
|
|
/* insert defaults, with '0' to ignore them if they are duplicates */
|
|
/* the 'refuse' defaults for /0 are now done per interface instead */
|
|
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, "::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;
|
|
}
|
|
|
|
int
|
|
acl_interface_compare(const void* k1, const void* k2)
|
|
{
|
|
struct addr_tree_node* n1 = (struct addr_tree_node*)k1;
|
|
struct addr_tree_node* n2 = (struct addr_tree_node*)k2;
|
|
return sockaddr_cmp(&n1->addr, n1->addrlen, &n2->addr,
|
|
n2->addrlen);
|
|
/* We don't care about comparing node->net. All addresses in the
|
|
* acl_interface tree have either 32 (ipv4) or 128 (ipv6). */
|
|
}
|
|
|
|
void
|
|
acl_interface_init(struct acl_list* acl_interface)
|
|
{
|
|
regional_free_all(acl_interface->region);
|
|
/* We want comparison in the tree to include only address and port.
|
|
* We don't care about comparing node->net. All addresses in the
|
|
* acl_interface->tree should have either 32 (ipv4) or 128 (ipv6).
|
|
* Initialise with the appropriate compare function but keep treating
|
|
* it as an addr_tree. */
|
|
addr_tree_addrport_init(&acl_interface->tree);
|
|
}
|
|
|
|
static int
|
|
read_acl_interface_action(struct acl_list* acl_interface,
|
|
struct config_str2list* acls, int port)
|
|
{
|
|
struct config_str2list* p;
|
|
for(p = acls; p; p = p->next) {
|
|
char** resif = NULL;
|
|
int num_resif = 0;
|
|
int i;
|
|
log_assert(p->str && p->str2);
|
|
if(!resolve_interface_names(&p->str, 1, NULL, &resif, &num_resif))
|
|
return 0;
|
|
for(i = 0; i<num_resif; i++) {
|
|
if(!acl_interface_str_cfg(acl_interface, resif[i], p->str2, port)){
|
|
config_del_strarray(resif, num_resif);
|
|
return 0;
|
|
}
|
|
}
|
|
config_del_strarray(resif, num_resif);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/** read acl view config for interface */
|
|
static int
|
|
read_acl_interface_view(struct acl_list* acl_interface,
|
|
struct config_str2list** acl_view,
|
|
struct views* v, int port)
|
|
{
|
|
struct config_str2list* np, *p = *acl_view;
|
|
*acl_view = NULL;
|
|
while(p) {
|
|
char** resif = NULL;
|
|
int num_resif = 0;
|
|
int i;
|
|
log_assert(p->str && p->str2);
|
|
if(!resolve_interface_names(&p->str, 1, NULL, &resif, &num_resif)) {
|
|
config_deldblstrlist(p);
|
|
return 0;
|
|
}
|
|
for(i = 0; i<num_resif; i++) {
|
|
if(!acl_list_view_cfg(acl_interface, resif[i], p->str2,
|
|
v, 1, port)) {
|
|
config_del_strarray(resif, num_resif);
|
|
config_deldblstrlist(p);
|
|
return 0;
|
|
}
|
|
}
|
|
config_del_strarray(resif, num_resif);
|
|
/* 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 tags config for interface */
|
|
static int
|
|
read_acl_interface_tags(struct acl_list* acl_interface,
|
|
struct config_strbytelist** acl_tags, int port)
|
|
{
|
|
struct config_strbytelist* np, *p = *acl_tags;
|
|
*acl_tags = NULL;
|
|
while(p) {
|
|
char** resif = NULL;
|
|
int num_resif = 0;
|
|
int i;
|
|
log_assert(p->str && p->str2);
|
|
if(!resolve_interface_names(&p->str, 1, NULL, &resif, &num_resif)) {
|
|
config_del_strbytelist(p);
|
|
return 0;
|
|
}
|
|
for(i = 0; i<num_resif; i++) {
|
|
if(!acl_list_tags_cfg(acl_interface, resif[i], p->str2,
|
|
p->str2len, 1, port)) {
|
|
config_del_strbytelist(p);
|
|
config_del_strarray(resif, num_resif);
|
|
return 0;
|
|
}
|
|
}
|
|
config_del_strarray(resif, num_resif);
|
|
/* 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 for interface*/
|
|
static int
|
|
read_acl_interface_tag_actions(struct acl_list* acl_interface,
|
|
struct config_file* cfg,
|
|
struct config_str3list** acl_tag_actions, int port)
|
|
{
|
|
struct config_str3list* p, *np;
|
|
p = *acl_tag_actions;
|
|
*acl_tag_actions = NULL;
|
|
while(p) {
|
|
char** resif = NULL;
|
|
int num_resif = 0;
|
|
int i;
|
|
log_assert(p->str && p->str2 && p->str3);
|
|
if(!resolve_interface_names(&p->str, 1, NULL, &resif, &num_resif)) {
|
|
config_deltrplstrlist(p);
|
|
return 0;
|
|
}
|
|
for(i = 0; i<num_resif; i++) {
|
|
if(!acl_list_tag_action_cfg(acl_interface, cfg,
|
|
resif[i], p->str2, p->str3, 1, port)) {
|
|
config_deltrplstrlist(p);
|
|
config_del_strarray(resif, num_resif);
|
|
return 0;
|
|
}
|
|
}
|
|
config_del_strarray(resif, num_resif);
|
|
/* 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 for interface */
|
|
static int
|
|
read_acl_interface_tag_datas(struct acl_list* acl_interface,
|
|
struct config_file* cfg,
|
|
struct config_str3list** acl_tag_datas, int port)
|
|
{
|
|
struct config_str3list* p, *np;
|
|
p = *acl_tag_datas;
|
|
*acl_tag_datas = NULL;
|
|
while(p) {
|
|
char** resif = NULL;
|
|
int num_resif = 0;
|
|
int i;
|
|
log_assert(p->str && p->str2 && p->str3);
|
|
if(!resolve_interface_names(&p->str, 1, NULL, &resif, &num_resif)) {
|
|
config_deltrplstrlist(p);
|
|
return 0;
|
|
}
|
|
for(i = 0; i<num_resif; i++) {
|
|
if(!acl_list_tag_data_cfg(acl_interface, cfg,
|
|
resif[i], p->str2, p->str3, 1, port)) {
|
|
config_deltrplstrlist(p);
|
|
config_del_strarray(resif, num_resif);
|
|
return 0;
|
|
}
|
|
}
|
|
config_del_strarray(resif, num_resif);
|
|
/* 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_interface_apply_cfg(struct acl_list* acl_interface, struct config_file* cfg,
|
|
struct views* v)
|
|
{
|
|
if(!read_acl_interface_action(acl_interface, cfg->interface_actions,
|
|
cfg->port))
|
|
return 0;
|
|
if(!read_acl_interface_view(acl_interface, &cfg->interface_view, v,
|
|
cfg->port))
|
|
return 0;
|
|
if(!read_acl_interface_tags(acl_interface, &cfg->interface_tags,
|
|
cfg->port))
|
|
return 0;
|
|
if(!read_acl_interface_tag_actions(acl_interface, cfg,
|
|
&cfg->interface_tag_actions, cfg->port))
|
|
return 0;
|
|
if(!read_acl_interface_tag_datas(acl_interface, cfg,
|
|
&cfg->interface_tag_datas, cfg->port))
|
|
return 0;
|
|
addr_tree_init_parents(&acl_interface->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);
|
|
}
|
|
|
|
const char* acl_access_to_str(enum acl_access acl)
|
|
{
|
|
switch(acl) {
|
|
case acl_deny: return "deny";
|
|
case acl_refuse: return "refuse";
|
|
case acl_deny_non_local: return "deny_non_local";
|
|
case acl_refuse_non_local: return "refuse_non_local";
|
|
case acl_allow: return "allow";
|
|
case acl_allow_snoop: return "allow_snoop";
|
|
case acl_allow_setrd: return "allow_setrd";
|
|
default: break;
|
|
}
|
|
return "unknown";
|
|
}
|
|
|
|
void
|
|
log_acl_action(const char* action, struct sockaddr_storage* addr,
|
|
socklen_t addrlen, enum acl_access acl, struct acl_addr* acladdr)
|
|
{
|
|
char a[128], n[128];
|
|
uint16_t port;
|
|
addr_to_str(addr, addrlen, a, sizeof(a));
|
|
port = ntohs(((struct sockaddr_in*)addr)->sin_port);
|
|
if(acladdr) {
|
|
addr_to_str(&acladdr->node.addr, acladdr->node.addrlen,
|
|
n, sizeof(n));
|
|
verbose(VERB_ALGO, "%s query from %s port %d because of "
|
|
"%s/%d %s", action, a, (int)port, n, acladdr->node.net,
|
|
acl_access_to_str(acl));
|
|
} else {
|
|
verbose(VERB_ALGO, "%s query from %s port %d", action, a,
|
|
(int)port);
|
|
}
|
|
}
|