| 1 |
c0b6fdde
|
jim-p
|
<?php
|
| 2 |
|
|
/*
|
| 3 |
ac24dc24
|
Renato Botelho
|
* easyrule.inc
|
| 4 |
|
|
*
|
| 5 |
|
|
* part of pfSense (https://www.pfsense.org)
|
| 6 |
38809d47
|
Renato Botelho do Couto
|
* Copyright (c) 2009-2013 BSD Perimeter
|
| 7 |
|
|
* Copyright (c) 2013-2016 Electric Sheep Fencing
|
| 8 |
a68f7a3d
|
Luiz Otavio O Souza
|
* Copyright (c) 2014-2024 Rubicon Communications, LLC (Netgate)
|
| 9 |
ac24dc24
|
Renato Botelho
|
* Originally Sponsored By Anathematic @ pfSense Forums
|
| 10 |
|
|
* All rights reserved.
|
| 11 |
|
|
*
|
| 12 |
b12ea3fb
|
Renato Botelho
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
| 13 |
|
|
* you may not use this file except in compliance with the License.
|
| 14 |
|
|
* You may obtain a copy of the License at
|
| 15 |
ac24dc24
|
Renato Botelho
|
*
|
| 16 |
b12ea3fb
|
Renato Botelho
|
* http://www.apache.org/licenses/LICENSE-2.0
|
| 17 |
ac24dc24
|
Renato Botelho
|
*
|
| 18 |
b12ea3fb
|
Renato Botelho
|
* Unless required by applicable law or agreed to in writing, software
|
| 19 |
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
| 20 |
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
| 21 |
|
|
* See the License for the specific language governing permissions and
|
| 22 |
|
|
* limitations under the License.
|
| 23 |
ac24dc24
|
Renato Botelho
|
*/
|
| 24 |
c0b6fdde
|
jim-p
|
|
| 25 |
|
|
$blockaliasname = 'EasyRuleBlockHosts';
|
| 26 |
865ff9b4
|
jim-p
|
$protocols_with_ports = array('tcp', 'udp');
|
| 27 |
|
|
require_once("functions.inc");
|
| 28 |
|
|
require_once("util.inc");
|
| 29 |
1d85e963
|
Renato Botelho
|
require_once("ipsec.inc");
|
| 30 |
865ff9b4
|
jim-p
|
require_once("config.inc");
|
| 31 |
4d828a9a
|
Ermal Lu?i
|
|
| 32 |
c0b6fdde
|
jim-p
|
function easyrule_find_rule_interface($int) {
|
| 33 |
|
|
global $config;
|
| 34 |
|
|
/* Borrowed from firewall_rules.php */
|
| 35 |
f593f80b
|
Phil Davis
|
$iflist = get_configured_interface_with_descr(true);
|
| 36 |
dadad8b3
|
jim-p
|
|
| 37 |
d55227f4
|
jim-p
|
/* Add interface groups */
|
| 38 |
|
|
foreach (config_get_path('ifgroups/ifgroupentry', []) as $ifgen) {
|
| 39 |
|
|
$iflist[$ifgen['ifname']] = $ifgen['ifname'];
|
| 40 |
83314732
|
Viktor G
|
}
|
| 41 |
|
|
|
| 42 |
|
|
if (is_pppoe_server_enabled()) {
|
| 43 |
|
|
$iflist['pppoe'] = gettext("PPPoE Server");
|
| 44 |
1e0b1727
|
Phil Davis
|
}
|
| 45 |
dadad8b3
|
jim-p
|
|
| 46 |
d55227f4
|
jim-p
|
if (config_get_path('l2tp/mode') == "server") {
|
| 47 |
83314732
|
Viktor G
|
$iflist['l2tp'] = gettext("L2TP VPN");
|
| 48 |
1e0b1727
|
Phil Davis
|
}
|
| 49 |
4d828a9a
|
Ermal Lu?i
|
|
| 50 |
d55227f4
|
jim-p
|
/* Add IPsec tunnel interface */
|
| 51 |
4e322e2c
|
Phil Davis
|
if (ipsec_enabled()) {
|
| 52 |
83314732
|
Viktor G
|
$iflist["enc0"] = gettext("IPsec");
|
| 53 |
|
|
}
|
| 54 |
|
|
|
| 55 |
d55227f4
|
jim-p
|
if (count(config_get_path('openvpn/openvpn-server', [])) ||
|
| 56 |
|
|
count(config_get_path('openvpn/openvpn-client', []))) {
|
| 57 |
83314732
|
Viktor G
|
$iflist["openvpn"] = gettext("OpenVPN");
|
| 58 |
4e322e2c
|
Phil Davis
|
}
|
| 59 |
dadad8b3
|
jim-p
|
|
| 60 |
d55227f4
|
jim-p
|
/* Check if the given name matches a known assigned interface id or
|
| 61 |
|
|
* common group name */
|
| 62 |
|
|
if (array_key_exists($int, $iflist)) {
|
| 63 |
c0b6fdde
|
jim-p
|
return $int;
|
| 64 |
1e0b1727
|
Phil Davis
|
}
|
| 65 |
c0b6fdde
|
jim-p
|
|
| 66 |
d55227f4
|
jim-p
|
/* Check if the user passed an interface description name instead of the
|
| 67 |
|
|
* internal name. */
|
| 68 |
c0b6fdde
|
jim-p
|
foreach ($iflist as $if => $ifd) {
|
| 69 |
1e0b1727
|
Phil Davis
|
if (strtolower($int) == strtolower($ifd)) {
|
| 70 |
c0b6fdde
|
jim-p
|
return $if;
|
| 71 |
1e0b1727
|
Phil Davis
|
}
|
| 72 |
c0b6fdde
|
jim-p
|
}
|
| 73 |
dadad8b3
|
jim-p
|
|
| 74 |
d55227f4
|
jim-p
|
/* Check for unassigned OpenVPN or IPsec and return the associated
|
| 75 |
|
|
* group name. */
|
| 76 |
1e0b1727
|
Phil Davis
|
if (substr($int, 0, 4) == "ovpn") {
|
| 77 |
066afaf1
|
jim-p
|
return "openvpn";
|
| 78 |
1e0b1727
|
Phil Davis
|
}
|
| 79 |
bd4c337c
|
jim-p
|
if (substr($int, 0, 5) == "ipsec") {
|
| 80 |
|
|
return "ipsec";
|
| 81 |
|
|
}
|
| 82 |
066afaf1
|
jim-p
|
|
| 83 |
d55227f4
|
jim-p
|
/* If the user passed a real interface name, attempt to map it to an
|
| 84 |
|
|
* assigned interface */
|
| 85 |
|
|
$iff = convert_real_interface_to_friendly_interface_name($int);
|
| 86 |
|
|
if (($iff !== NULL) && ($iff != $int)) {
|
| 87 |
|
|
return $iff;
|
| 88 |
|
|
}
|
| 89 |
|
|
|
| 90 |
c0b6fdde
|
jim-p
|
return false;
|
| 91 |
|
|
}
|
| 92 |
|
|
|
| 93 |
4475997e
|
jim-p
|
function easyrule_block_rule_exists($int = 'wan', $ipproto = "inet") {
|
| 94 |
c0b6fdde
|
jim-p
|
global $blockaliasname, $config;
|
| 95 |
|
|
/* No rules, we we know it doesn't exist */
|
| 96 |
d55227f4
|
jim-p
|
if (empty(config_get_path('filter/rule', []))) {
|
| 97 |
c0b6fdde
|
jim-p
|
return false;
|
| 98 |
|
|
}
|
| 99 |
|
|
|
| 100 |
|
|
/* Search through the rules for one referencing our alias */
|
| 101 |
d55227f4
|
jim-p
|
foreach (config_get_path('filter/rule', []) as $rule) {
|
| 102 |
1e0b1727
|
Phil Davis
|
if (!is_array($rule) || !is_array($rule['source'])) {
|
| 103 |
f3704cb2
|
jim-p
|
continue;
|
| 104 |
1e0b1727
|
Phil Davis
|
}
|
| 105 |
4475997e
|
jim-p
|
$checkproto = isset($rule['ipprotocol']) ? $rule['ipprotocol'] : "inet";
|
| 106 |
d55227f4
|
jim-p
|
if ((array_get_path($rule, 'source/address') == $blockaliasname . strtoupper($int)) &&
|
| 107 |
|
|
($rule['interface'] == $int) &&
|
| 108 |
|
|
($checkproto == $ipproto)) {
|
| 109 |
c0b6fdde
|
jim-p
|
return true;
|
| 110 |
1e0b1727
|
Phil Davis
|
}
|
| 111 |
28a581b8
|
jim-p
|
}
|
| 112 |
c0b6fdde
|
jim-p
|
return false;
|
| 113 |
|
|
}
|
| 114 |
|
|
|
| 115 |
64eda26c
|
jim-p
|
function easyrule_block_rule_create($int = 'wan', $ipproto = "inet") {
|
| 116 |
abc8192b
|
Marcos Mendoza
|
global $blockaliasname;
|
| 117 |
c0b6fdde
|
jim-p
|
/* If the alias doesn't exist, exit.
|
| 118 |
|
|
* Can't create an empty alias, and we don't know a host */
|
| 119 |
1e0b1727
|
Phil Davis
|
if (easyrule_block_alias_getid($int) === false) {
|
| 120 |
d55227f4
|
jim-p
|
return "noalias";
|
| 121 |
1e0b1727
|
Phil Davis
|
}
|
| 122 |
c0b6fdde
|
jim-p
|
|
| 123 |
|
|
/* If the rule already exists, no need to do it again */
|
| 124 |
1e0b1727
|
Phil Davis
|
if (easyrule_block_rule_exists($int, $ipproto)) {
|
| 125 |
c0b6fdde
|
jim-p
|
return true;
|
| 126 |
1e0b1727
|
Phil Davis
|
}
|
| 127 |
c0b6fdde
|
jim-p
|
|
| 128 |
c6c398c6
|
jim-p
|
filter_rules_sort();
|
| 129 |
d55227f4
|
jim-p
|
$a_filter = config_get_path('filter/rule', []);
|
| 130 |
c0b6fdde
|
jim-p
|
|
| 131 |
|
|
/* Make up a new rule */
|
| 132 |
|
|
$filterent = array();
|
| 133 |
|
|
$filterent['type'] = 'block';
|
| 134 |
dadad8b3
|
jim-p
|
$filterent['interface'] = $int;
|
| 135 |
64eda26c
|
jim-p
|
$filterent['ipprotocol'] = $ipproto;
|
| 136 |
d55227f4
|
jim-p
|
$filterent['source'] = [];
|
| 137 |
c0b6fdde
|
jim-p
|
$filterent['source']['address'] = $blockaliasname . strtoupper($int);
|
| 138 |
d55227f4
|
jim-p
|
$filterent['destination'] = [];
|
| 139 |
c0b6fdde
|
jim-p
|
$filterent['destination']['any'] = '';
|
| 140 |
d55227f4
|
jim-p
|
$filterent['descr'] = gettext("Blocked via EasyRule");
|
| 141 |
|
|
$filterent['created'] = make_config_revision_entry(null, "EasyRule");
|
| 142 |
7c1aa62b
|
jim-p
|
$filterent['tracker'] = (int)microtime(true);
|
| 143 |
c0b6fdde
|
jim-p
|
|
| 144 |
abc8192b
|
Marcos Mendoza
|
// place the rule on top
|
| 145 |
|
|
$ridx = get_interface_ruleindex($int);
|
| 146 |
|
|
array_splice($a_filter, $ridx['first'], 0, array($filterent));
|
| 147 |
d55227f4
|
jim-p
|
config_set_path('filter/rule', $a_filter);
|
| 148 |
92272605
|
NOYB
|
|
| 149 |
abc8192b
|
Marcos Mendoza
|
// shift the separators
|
| 150 |
|
|
$a_separators = config_get_path('filter/separator/' . strtolower($int), []);
|
| 151 |
|
|
shift_separators($a_separators, -1);
|
| 152 |
|
|
config_set_path('filter/separator/' . strtolower($int), $a_separators);
|
| 153 |
c0b6fdde
|
jim-p
|
|
| 154 |
|
|
return true;
|
| 155 |
|
|
}
|
| 156 |
|
|
|
| 157 |
|
|
function easyrule_block_alias_getid($int = 'wan') {
|
| 158 |
d55227f4
|
jim-p
|
global $blockaliasname;
|
| 159 |
c0b6fdde
|
jim-p
|
|
| 160 |
|
|
/* Hunt down an alias with the name we want, return its id */
|
| 161 |
d55227f4
|
jim-p
|
foreach (config_get_path('aliases/alias', []) as $aliasid => $alias) {
|
| 162 |
1e0b1727
|
Phil Davis
|
if ($alias['name'] == $blockaliasname . strtoupper($int)) {
|
| 163 |
c0b6fdde
|
jim-p
|
return $aliasid;
|
| 164 |
1e0b1727
|
Phil Davis
|
}
|
| 165 |
|
|
}
|
| 166 |
c0b6fdde
|
jim-p
|
|
| 167 |
|
|
return false;
|
| 168 |
|
|
}
|
| 169 |
|
|
|
| 170 |
|
|
function easyrule_block_alias_add($host, $int = 'wan') {
|
| 171 |
|
|
global $blockaliasname, $config;
|
| 172 |
77ba3449
|
Marcos Mendoza
|
$easyrule_nettype_flags = [SPECIALNET_ANY, SPECIALNET_SELF, SPECIALNET_CLIENTS];
|
| 173 |
c0b6fdde
|
jim-p
|
/* If the host isn't a valid IP address, bail */
|
| 174 |
b4147482
|
jim-p
|
$host = trim($host, "[]");
|
| 175 |
1e0b1727
|
Phil Davis
|
if (!is_ipaddr($host) && !is_subnet($host)) {
|
| 176 |
d55227f4
|
jim-p
|
return "invalid";
|
| 177 |
1e0b1727
|
Phil Davis
|
}
|
| 178 |
c0b6fdde
|
jim-p
|
|
| 179 |
d55227f4
|
jim-p
|
$a_aliases = config_get_path('aliases/alias', []);
|
| 180 |
c0b6fdde
|
jim-p
|
|
| 181 |
|
|
/* Try to get the ID if the alias already exists */
|
| 182 |
|
|
$id = easyrule_block_alias_getid($int);
|
| 183 |
1e0b1727
|
Phil Davis
|
if ($id === false) {
|
| 184 |
d55227f4
|
jim-p
|
unset($id);
|
| 185 |
1e0b1727
|
Phil Davis
|
}
|
| 186 |
c0b6fdde
|
jim-p
|
|
| 187 |
|
|
$alias = array();
|
| 188 |
|
|
|
| 189 |
0c305760
|
jim-p
|
if (is_subnet($host)) {
|
| 190 |
|
|
list($host, $mask) = explode("/", $host);
|
| 191 |
77ba3449
|
Marcos Mendoza
|
} elseif (get_specialnet($host, $easyrule_nettype_flags)) {
|
| 192 |
0c305760
|
jim-p
|
$mask = 0;
|
| 193 |
b4147482
|
jim-p
|
} elseif (is_ipaddrv6($host)) {
|
| 194 |
|
|
$mask = 128;
|
| 195 |
0c305760
|
jim-p
|
} else {
|
| 196 |
|
|
$mask = 32;
|
| 197 |
|
|
}
|
| 198 |
|
|
|
| 199 |
d55227f4
|
jim-p
|
if (isset($id) &&
|
| 200 |
|
|
array_key_exists($id, $a_aliases) &&
|
| 201 |
|
|
is_array($a_aliases[$id])) {
|
| 202 |
e4d8943c
|
Oliver Welter
|
|
| 203 |
|
|
// Catch case when the list is empty
|
| 204 |
d55227f4
|
jim-p
|
if (empty(array_get_path($a_aliases, "{$id}/address", ""))) {
|
| 205 |
e4d8943c
|
Oliver Welter
|
$a_address = array();
|
| 206 |
|
|
$a_detail = array();
|
| 207 |
|
|
} else {
|
| 208 |
d55227f4
|
jim-p
|
$a_address = explode(" ", array_get_path($a_aliases, "{$id}/address", ""));
|
| 209 |
e4d8943c
|
Oliver Welter
|
|
| 210 |
d55227f4
|
jim-p
|
/* Make sure this IP address isn't already in the list. */
|
| 211 |
e4d8943c
|
Oliver Welter
|
if (in_array($host.'/'.$mask, $a_address)) {
|
| 212 |
d55227f4
|
jim-p
|
return "exists";
|
| 213 |
e4d8943c
|
Oliver Welter
|
}
|
| 214 |
d55227f4
|
jim-p
|
$a_detail = explode("||", array_get_path($a_aliases, "{$id}/detail"));
|
| 215 |
e4d8943c
|
Oliver Welter
|
}
|
| 216 |
|
|
|
| 217 |
c0b6fdde
|
jim-p
|
/* Since the alias already exists, just add to it. */
|
| 218 |
d55227f4
|
jim-p
|
$alias['name'] = array_get_path($a_aliases, "{$id}/name");
|
| 219 |
|
|
$alias['type'] = array_get_path($a_aliases, "{$id}/type");
|
| 220 |
|
|
$alias['descr'] = array_get_path($a_aliases, "{$id}/descr");
|
| 221 |
c0b6fdde
|
jim-p
|
|
| 222 |
e4d8943c
|
Oliver Welter
|
$a_address[] = $host.'/'.$mask;
|
| 223 |
|
|
$a_detail[] = gettext('Entry added') . ' ' . date('r');
|
| 224 |
|
|
|
| 225 |
|
|
$alias['address'] = join(" ", $a_address);
|
| 226 |
|
|
$alias['detail'] = join("||", $a_detail);
|
| 227 |
|
|
|
| 228 |
c0b6fdde
|
jim-p
|
} else {
|
| 229 |
|
|
/* Create a new alias with all the proper information */
|
| 230 |
1e0b1727
|
Phil Davis
|
$alias['name'] = $blockaliasname . strtoupper($int);
|
| 231 |
|
|
$alias['type'] = 'network';
|
| 232 |
d55227f4
|
jim-p
|
$alias['descr'] = gettext("Blocked via EasyRule");
|
| 233 |
c0b6fdde
|
jim-p
|
|
| 234 |
0c305760
|
jim-p
|
$alias['address'] = $host . '/' . $mask;
|
| 235 |
5bd033a0
|
Renato Botelho
|
$alias['detail'] = gettext('Entry added') . ' ' . date('r') . '||';
|
| 236 |
c0b6fdde
|
jim-p
|
}
|
| 237 |
|
|
|
| 238 |
|
|
/* Replace the old alias if needed, otherwise tack it on the end */
|
| 239 |
1e0b1727
|
Phil Davis
|
if (isset($id) && $a_aliases[$id]) {
|
| 240 |
c0b6fdde
|
jim-p
|
$a_aliases[$id] = $alias;
|
| 241 |
1e0b1727
|
Phil Davis
|
} else {
|
| 242 |
c0b6fdde
|
jim-p
|
$a_aliases[] = $alias;
|
| 243 |
1e0b1727
|
Phil Davis
|
}
|
| 244 |
9bb8d542
|
Ermal Lu?i
|
|
| 245 |
|
|
// Sort list
|
| 246 |
|
|
$a_aliases = msort($a_aliases, "name");
|
| 247 |
c0b6fdde
|
jim-p
|
|
| 248 |
d55227f4
|
jim-p
|
config_set_path('aliases/alias', $a_aliases);
|
| 249 |
c0b6fdde
|
jim-p
|
return true;
|
| 250 |
|
|
}
|
| 251 |
|
|
|
| 252 |
015a4824
|
Viktor G
|
function easyrule_block_host_add($host, $int = 'wan') {
|
| 253 |
c0b6fdde
|
jim-p
|
global $retval;
|
| 254 |
|
|
/* Bail if the supplied host is not a valid IP address */
|
| 255 |
b4147482
|
jim-p
|
$host = trim($host, "[]");
|
| 256 |
1e0b1727
|
Phil Davis
|
if (!is_ipaddr($host) && !is_subnet($host)) {
|
| 257 |
d55227f4
|
jim-p
|
return "invalid";
|
| 258 |
1e0b1727
|
Phil Davis
|
}
|
| 259 |
c0b6fdde
|
jim-p
|
|
| 260 |
015a4824
|
Viktor G
|
if (is_v6($host)) {
|
| 261 |
|
|
$ipproto = 'inet6';
|
| 262 |
|
|
} else {
|
| 263 |
|
|
$ipproto = 'inet';
|
| 264 |
|
|
}
|
| 265 |
|
|
|
| 266 |
c0b6fdde
|
jim-p
|
/* Flag whether or not we need to reload the filter */
|
| 267 |
|
|
$dirty = false;
|
| 268 |
|
|
|
| 269 |
|
|
/* Attempt to add this host to the alias */
|
| 270 |
d55227f4
|
jim-p
|
$alias_add_result = easyrule_block_alias_add($host, $int);
|
| 271 |
|
|
if ($alias_add_result === true) {
|
| 272 |
c0b6fdde
|
jim-p
|
$dirty = true;
|
| 273 |
|
|
} else {
|
| 274 |
|
|
/* Couldn't add the alias, or adding the host failed. */
|
| 275 |
d55227f4
|
jim-p
|
return $alias_add_result;
|
| 276 |
c0b6fdde
|
jim-p
|
}
|
| 277 |
|
|
|
| 278 |
|
|
/* Attempt to add the firewall rule if it doesn't exist.
|
| 279 |
|
|
* Failing to add the rule isn't necessarily an error, it may
|
| 280 |
|
|
* have been modified by the user in some way. Adding to the
|
| 281 |
|
|
* Alias is what's important.
|
| 282 |
|
|
*/
|
| 283 |
64eda26c
|
jim-p
|
if (!easyrule_block_rule_exists($int, $ipproto)) {
|
| 284 |
d55227f4
|
jim-p
|
$rule_create_result = easyrule_block_rule_create($int, $ipproto);
|
| 285 |
|
|
if ($rule_create_result === true) {
|
| 286 |
c0b6fdde
|
jim-p
|
$dirty = true;
|
| 287 |
|
|
} else {
|
| 288 |
d55227f4
|
jim-p
|
return $rule_create_result;
|
| 289 |
c0b6fdde
|
jim-p
|
}
|
| 290 |
|
|
}
|
| 291 |
|
|
|
| 292 |
|
|
/* If needed, write the config and reload the filter */
|
| 293 |
|
|
if ($dirty) {
|
| 294 |
d55227f4
|
jim-p
|
write_config(sprintf(gettext("Blocked %s via EasyRule"), $host));
|
| 295 |
c0b6fdde
|
jim-p
|
$retval = filter_configure();
|
| 296 |
865ff9b4
|
jim-p
|
if (!empty($_SERVER['DOCUMENT_ROOT'])) {
|
| 297 |
|
|
header("Location: firewall_aliases.php");
|
| 298 |
|
|
exit;
|
| 299 |
|
|
} else {
|
| 300 |
|
|
return true;
|
| 301 |
|
|
}
|
| 302 |
c0b6fdde
|
jim-p
|
} else {
|
| 303 |
|
|
return false;
|
| 304 |
|
|
}
|
| 305 |
|
|
}
|
| 306 |
|
|
|
| 307 |
bd40781a
|
Seth Mos
|
function easyrule_pass_rule_add($int, $proto, $srchost, $dsthost, $dstport, $ipproto) {
|
| 308 |
c0b6fdde
|
jim-p
|
global $config;
|
| 309 |
77ba3449
|
Marcos Mendoza
|
$easyrule_nettype_flags = [SPECIALNET_ANY, SPECIALNET_SELF, SPECIALNET_CLIENTS];
|
| 310 |
c0b6fdde
|
jim-p
|
|
| 311 |
b55d94e8
|
jim-p
|
init_config_arr(array('filter', 'rule'));
|
| 312 |
c6c398c6
|
jim-p
|
filter_rules_sort();
|
| 313 |
d55227f4
|
jim-p
|
$a_filter = config_get_path('filter/rule', []);
|
| 314 |
c0b6fdde
|
jim-p
|
|
| 315 |
|
|
/* Make up a new rule */
|
| 316 |
|
|
$filterent = array();
|
| 317 |
|
|
$filterent['type'] = 'pass';
|
| 318 |
|
|
$filterent['interface'] = $int;
|
| 319 |
bd40781a
|
Seth Mos
|
$filterent['ipprotocol'] = $ipproto;
|
| 320 |
d55227f4
|
jim-p
|
$filterent['descr'] = gettext("Passed via EasyRule");
|
| 321 |
c0b6fdde
|
jim-p
|
|
| 322 |
1e0b1727
|
Phil Davis
|
if ($proto != "any") {
|
| 323 |
c0b6fdde
|
jim-p
|
$filterent['protocol'] = $proto;
|
| 324 |
1e0b1727
|
Phil Davis
|
} else {
|
| 325 |
c0b6fdde
|
jim-p
|
unset($filterent['protocol']);
|
| 326 |
1e0b1727
|
Phil Davis
|
}
|
| 327 |
c0b6fdde
|
jim-p
|
|
| 328 |
be6d4417
|
jim-p
|
if ((strtolower($proto) == "icmp6") || (strtolower($proto) == "icmpv6")) {
|
| 329 |
|
|
$filterent['protocol'] = "icmp";
|
| 330 |
|
|
}
|
| 331 |
|
|
|
| 332 |
c0b6fdde
|
jim-p
|
/* Default to only allow echo requests, since that's what most people want and
|
| 333 |
|
|
* it should be a safe choice. */
|
| 334 |
1e0b1727
|
Phil Davis
|
if ($proto == "icmp") {
|
| 335 |
c0b6fdde
|
jim-p
|
$filterent['icmptype'] = 'echoreq';
|
| 336 |
1e0b1727
|
Phil Davis
|
}
|
| 337 |
c0b6fdde
|
jim-p
|
|
| 338 |
0c305760
|
jim-p
|
if (is_subnet($srchost)) {
|
| 339 |
|
|
list($srchost, $srcmask) = explode("/", $srchost);
|
| 340 |
77ba3449
|
Marcos Mendoza
|
} elseif (get_specialnet($srchost, $easyrule_nettype_flags)) {
|
| 341 |
0c305760
|
jim-p
|
$srcmask = 0;
|
| 342 |
aea83400
|
Thomas Rieschl
|
} elseif (is_ipaddrv6($srchost)) {
|
| 343 |
|
|
$srcmask = 128;
|
| 344 |
0c305760
|
jim-p
|
} else {
|
| 345 |
|
|
$srcmask = 32;
|
| 346 |
|
|
}
|
| 347 |
|
|
|
| 348 |
|
|
if (is_subnet($dsthost)) {
|
| 349 |
|
|
list($dsthost, $dstmask) = explode("/", $dsthost);
|
| 350 |
77ba3449
|
Marcos Mendoza
|
} elseif (get_specialnet($dsthost, $easyrule_nettype_flags)) {
|
| 351 |
0c305760
|
jim-p
|
$dstmask = 0;
|
| 352 |
aea83400
|
Thomas Rieschl
|
} elseif (is_ipaddrv6($dsthost)) {
|
| 353 |
|
|
$dstmask = 128;
|
| 354 |
0c305760
|
jim-p
|
} else {
|
| 355 |
|
|
$dstmask = 32;
|
| 356 |
|
|
}
|
| 357 |
|
|
|
| 358 |
e729ecf8
|
Marcos Mendoza
|
pconfig_to_address($filterent['source'], $srchost, $srcmask, false, 0, 0, false, $easyrule_nettype_flags);
|
| 359 |
|
|
pconfig_to_address($filterent['destination'], $dsthost, $dstmask, '', $dstport, $dstport, false, $easyrule_nettype_flags);
|
| 360 |
c0b6fdde
|
jim-p
|
|
| 361 |
d55227f4
|
jim-p
|
$filterent['created'] = make_config_revision_entry(null, "EasyRule");
|
| 362 |
7c1aa62b
|
jim-p
|
$filterent['tracker'] = (int)microtime(true);
|
| 363 |
c0b6fdde
|
jim-p
|
$a_filter[] = $filterent;
|
| 364 |
d55227f4
|
jim-p
|
config_set_path('filter/rule', $a_filter);
|
| 365 |
c0b6fdde
|
jim-p
|
|
| 366 |
998f77a8
|
jim-p
|
write_config($filterent['descr']);
|
| 367 |
c0b6fdde
|
jim-p
|
$retval = filter_configure();
|
| 368 |
865ff9b4
|
jim-p
|
if (!empty($_SERVER['DOCUMENT_ROOT'])) {
|
| 369 |
|
|
header("Location: firewall_rules.php?if={$int}");
|
| 370 |
|
|
exit;
|
| 371 |
|
|
} else {
|
| 372 |
|
|
return true;
|
| 373 |
|
|
}
|
| 374 |
|
|
}
|
| 375 |
|
|
|
| 376 |
015a4824
|
Viktor G
|
function easyrule_parse_block($int, $src) {
|
| 377 |
865ff9b4
|
jim-p
|
if (!empty($src) && !empty($int)) {
|
| 378 |
b4147482
|
jim-p
|
$src = trim($src, "[]");
|
| 379 |
0c305760
|
jim-p
|
if (!is_ipaddr($src) && !is_subnet($src)) {
|
| 380 |
d55227f4
|
jim-p
|
return gettext("Tried to block invalid address:") . ' ' . htmlspecialchars($src);
|
| 381 |
865ff9b4
|
jim-p
|
}
|
| 382 |
|
|
$int = easyrule_find_rule_interface($int);
|
| 383 |
|
|
if ($int === false) {
|
| 384 |
d55227f4
|
jim-p
|
return gettext("Invalid interface for block rule.");
|
| 385 |
865ff9b4
|
jim-p
|
}
|
| 386 |
d55227f4
|
jim-p
|
switch ((string)easyrule_block_host_add($src, $int)) {
|
| 387 |
|
|
case "exists":
|
| 388 |
|
|
return gettext("Block entry already exists.");
|
| 389 |
|
|
break;
|
| 390 |
|
|
case "invalid":
|
| 391 |
|
|
return gettext("Invalid address.");
|
| 392 |
|
|
break;
|
| 393 |
|
|
case "1":
|
| 394 |
|
|
return gettext("Block added successfully");
|
| 395 |
|
|
break;
|
| 396 |
|
|
case "":
|
| 397 |
|
|
default:
|
| 398 |
|
|
return gettext("Failed to create block rule, alias, or add entry.");
|
| 399 |
|
|
break;
|
| 400 |
865ff9b4
|
jim-p
|
}
|
| 401 |
|
|
} else {
|
| 402 |
d55227f4
|
jim-p
|
return gettext("Tried to block but had no address or interface");
|
| 403 |
865ff9b4
|
jim-p
|
}
|
| 404 |
5bd033a0
|
Renato Botelho
|
return gettext("Unknown block error.");
|
| 405 |
865ff9b4
|
jim-p
|
}
|
| 406 |
4dedce6d
|
Oliver Welter
|
|
| 407 |
015a4824
|
Viktor G
|
function easyrule_parse_unblock($int, $host) {
|
| 408 |
4dedce6d
|
Oliver Welter
|
global $blockaliasname, $config;
|
| 409 |
77ba3449
|
Marcos Mendoza
|
$easyrule_nettype_flags = [SPECIALNET_ANY, SPECIALNET_SELF, SPECIALNET_CLIENTS];
|
| 410 |
4dedce6d
|
Oliver Welter
|
|
| 411 |
|
|
if (!empty($host) && !empty($int)) {
|
| 412 |
|
|
$host = trim($host, "[]");
|
| 413 |
|
|
if (!is_ipaddr($host) && !is_subnet($host)) {
|
| 414 |
d55227f4
|
jim-p
|
return gettext("Tried to unblock invalid address:") . ' ' . htmlspecialchars($host);
|
| 415 |
4dedce6d
|
Oliver Welter
|
}
|
| 416 |
|
|
$real_int = easyrule_find_rule_interface($int);
|
| 417 |
|
|
if ($real_int === false) {
|
| 418 |
|
|
return gettext("Invalid interface for block rule:") . ' ' . htmlspecialchars($int);
|
| 419 |
|
|
}
|
| 420 |
|
|
|
| 421 |
|
|
/* Try to get the ID - will fail if there are no rules/alias on this interface */
|
| 422 |
|
|
$id = easyrule_block_alias_getid($real_int);
|
| 423 |
d55227f4
|
jim-p
|
if ($id === false ||
|
| 424 |
|
|
empty(config_get_path("aliases/alias/{$id}", [])) ||
|
| 425 |
|
|
empty(config_get_path("aliases/alias/{$id}")['address'])) {
|
| 426 |
|
|
return gettext("No entries are blocked on interface:") . ' ' . htmlspecialchars($int);
|
| 427 |
4dedce6d
|
Oliver Welter
|
}
|
| 428 |
|
|
|
| 429 |
d55227f4
|
jim-p
|
$alias = config_get_path("aliases/alias/{$id}", []);
|
| 430 |
4dedce6d
|
Oliver Welter
|
|
| 431 |
|
|
if (is_subnet($host)) {
|
| 432 |
|
|
list($host, $mask) = explode("/", $host);
|
| 433 |
77ba3449
|
Marcos Mendoza
|
} elseif (get_specialnet($host, $easyrule_nettype_flags)) {
|
| 434 |
4dedce6d
|
Oliver Welter
|
$mask = 0;
|
| 435 |
|
|
} elseif (is_ipaddrv6($host)) {
|
| 436 |
|
|
$mask = 128;
|
| 437 |
|
|
} else {
|
| 438 |
|
|
$mask = 32;
|
| 439 |
|
|
}
|
| 440 |
|
|
|
| 441 |
|
|
// Create the expected string representation
|
| 442 |
|
|
$unblock = $host.'/'.$mask;
|
| 443 |
|
|
|
| 444 |
d55227f4
|
jim-p
|
$a_address = explode(" ", $alias['address']);
|
| 445 |
|
|
$a_detail = explode("||", $alias['detail']);
|
| 446 |
4dedce6d
|
Oliver Welter
|
|
| 447 |
086cf944
|
Phil Davis
|
if (($key = array_search($unblock, $a_address)) !== false) {
|
| 448 |
4dedce6d
|
Oliver Welter
|
unset($a_address[$key]);
|
| 449 |
|
|
unset($a_detail[$key]);
|
| 450 |
|
|
// Write back the result to the config array
|
| 451 |
d55227f4
|
jim-p
|
$alias['address'] = join(" ", $a_address);
|
| 452 |
|
|
$alias['detail'] = join("||", $a_detail);
|
| 453 |
|
|
config_set_path("aliases/alias/{$id}", $alias);
|
| 454 |
4dedce6d
|
Oliver Welter
|
|
| 455 |
|
|
// Update config
|
| 456 |
d55227f4
|
jim-p
|
write_config(sprintf(gettext("Unblocked %s via EasyRule"), $host));
|
| 457 |
4dedce6d
|
Oliver Welter
|
$retval = filter_configure();
|
| 458 |
|
|
if (!empty($_SERVER['DOCUMENT_ROOT'])) {
|
| 459 |
|
|
header("Location: firewall_aliases.php");
|
| 460 |
|
|
exit;
|
| 461 |
|
|
} else {
|
| 462 |
d55227f4
|
jim-p
|
return gettext("Entry unblocked successfully");
|
| 463 |
4dedce6d
|
Oliver Welter
|
}
|
| 464 |
|
|
} else {
|
| 465 |
d55227f4
|
jim-p
|
return gettext("Entry is not on block list: " . $host);
|
| 466 |
4dedce6d
|
Oliver Welter
|
}
|
| 467 |
|
|
}
|
| 468 |
|
|
|
| 469 |
d55227f4
|
jim-p
|
return gettext("Tried to unblock but had no address or interface");
|
| 470 |
4dedce6d
|
Oliver Welter
|
|
| 471 |
|
|
}
|
| 472 |
|
|
|
| 473 |
|
|
function easyrule_parse_getblock($int = 'wan', $sep = "\n") {
|
| 474 |
|
|
global $blockaliasname, $config;
|
| 475 |
|
|
|
| 476 |
|
|
$real_int = easyrule_find_rule_interface($int);
|
| 477 |
|
|
if ($real_int === false) {
|
| 478 |
|
|
return gettext("Invalid interface for block rule:") . ' ' . htmlspecialchars($int);
|
| 479 |
|
|
}
|
| 480 |
|
|
|
| 481 |
|
|
/* Try to get the ID - will fail if there are no rules/alias on this interface */
|
| 482 |
|
|
$id = easyrule_block_alias_getid($real_int);
|
| 483 |
|
|
|
| 484 |
d55227f4
|
jim-p
|
if ($id === false ||
|
| 485 |
|
|
empty(config_get_path("aliases/alias/{$id}", [])) ||
|
| 486 |
|
|
empty(config_get_path("aliases/alias/{$id}")['address'])) {
|
| 487 |
|
|
return gettext("No entries are blocked on interface:") . ' ' . htmlspecialchars($int);
|
| 488 |
4dedce6d
|
Oliver Welter
|
}
|
| 489 |
d55227f4
|
jim-p
|
return join($sep, explode(" ", config_get_path("aliases/alias/{$id}")['address']));
|
| 490 |
4dedce6d
|
Oliver Welter
|
}
|
| 491 |
|
|
|
| 492 |
64eda26c
|
jim-p
|
function easyrule_parse_pass($int, $proto, $src, $dst, $dstport = 0, $ipproto = "inet") {
|
| 493 |
865ff9b4
|
jim-p
|
/* Check for valid int, srchost, dsthost, dstport, and proto */
|
| 494 |
|
|
global $protocols_with_ports;
|
| 495 |
77ba3449
|
Marcos Mendoza
|
$easyrule_nettype_flags = [SPECIALNET_ANY, SPECIALNET_SELF, SPECIALNET_CLIENTS];
|
| 496 |
b4147482
|
jim-p
|
$src = trim($src, "[]");
|
| 497 |
|
|
$dst = trim($dst, "[]");
|
| 498 |
865ff9b4
|
jim-p
|
|
| 499 |
|
|
if (!empty($int) && !empty($proto) && !empty($src) && !empty($dst)) {
|
| 500 |
|
|
$int = easyrule_find_rule_interface($int);
|
| 501 |
|
|
if ($int === false) {
|
| 502 |
5bd033a0
|
Renato Botelho
|
return gettext("Invalid interface for pass rule:") . ' ' . htmlspecialchars($int);
|
| 503 |
865ff9b4
|
jim-p
|
}
|
| 504 |
be6d4417
|
jim-p
|
if ((strtolower($proto) == "icmp6") || (strtolower($proto) == "icmpv6")) {
|
| 505 |
|
|
$proto = "icmp";
|
| 506 |
|
|
}
|
| 507 |
d55227f4
|
jim-p
|
if (($proto != 'any') &&
|
| 508 |
|
|
(getprotobyname($proto) === false) &&
|
| 509 |
be6d4417
|
jim-p
|
(!is_numericint($proto) || (getprotobynumber($proto) === false))) {
|
| 510 |
5bd033a0
|
Renato Botelho
|
return gettext("Invalid protocol for pass rule:") . ' ' . htmlspecialchars($proto);
|
| 511 |
865ff9b4
|
jim-p
|
}
|
| 512 |
77ba3449
|
Marcos Mendoza
|
if (!is_ipaddr($src) && !is_subnet($src) && !is_ipaddroralias($src) && !get_specialnet($src, $easyrule_nettype_flags)) {
|
| 513 |
d55227f4
|
jim-p
|
return gettext("Tried to pass invalid source IP address:") . ' ' . htmlspecialchars($src);
|
| 514 |
865ff9b4
|
jim-p
|
}
|
| 515 |
77ba3449
|
Marcos Mendoza
|
if (!is_ipaddr($dst) && !is_subnet($dst) && !is_ipaddroralias($dst) && !get_specialnet($dst, $easyrule_nettype_flags)) {
|
| 516 |
d55227f4
|
jim-p
|
return gettext("Tried to pass invalid destination IP address:") . ' ' . htmlspecialchars($dst);
|
| 517 |
865ff9b4
|
jim-p
|
}
|
| 518 |
015a4824
|
Viktor G
|
if ((is_v6($src) && is_v4($dst)) || (is_v4($src) && is_v6($dst))) {
|
| 519 |
|
|
return gettext("The source IP address family has to match the family of the destination IP address.");
|
| 520 |
|
|
}
|
| 521 |
|
|
if (is_v6($src)) {
|
| 522 |
|
|
$ipproto = 'inet6';
|
| 523 |
|
|
} else {
|
| 524 |
|
|
$ipproto = 'inet';
|
| 525 |
|
|
}
|
| 526 |
d55227f4
|
jim-p
|
/* If the protocol is by number, change it to a name */
|
| 527 |
|
|
if (($proto != 'any') &&
|
| 528 |
|
|
(getprotobyname($proto) === false)) {
|
| 529 |
|
|
$proto = getprotobynumber($proto);
|
| 530 |
|
|
}
|
| 531 |
865ff9b4
|
jim-p
|
if (in_array($proto, $protocols_with_ports)) {
|
| 532 |
|
|
if (empty($dstport)) {
|
| 533 |
d55227f4
|
jim-p
|
return gettext("Missing destination port.");
|
| 534 |
865ff9b4
|
jim-p
|
}
|
| 535 |
0c305760
|
jim-p
|
if (!is_port($dstport) && ($dstport != "any")) {
|
| 536 |
5bd033a0
|
Renato Botelho
|
return gettext("Tried to pass invalid destination port:") . ' ' . htmlspecialchars($dstport);
|
| 537 |
865ff9b4
|
jim-p
|
}
|
| 538 |
|
|
} else {
|
| 539 |
|
|
$dstport = 0;
|
| 540 |
|
|
}
|
| 541 |
|
|
/* Should have valid input... */
|
| 542 |
bd40781a
|
Seth Mos
|
if (easyrule_pass_rule_add($int, $proto, $src, $dst, $dstport, $ipproto)) {
|
| 543 |
5bd033a0
|
Renato Botelho
|
return gettext("Successfully added pass rule!");
|
| 544 |
865ff9b4
|
jim-p
|
} else {
|
| 545 |
5bd033a0
|
Renato Botelho
|
return gettext("Failed to add pass rule.");
|
| 546 |
865ff9b4
|
jim-p
|
}
|
| 547 |
|
|
} else {
|
| 548 |
5bd033a0
|
Renato Botelho
|
return gettext("Missing parameters for pass rule.");
|
| 549 |
865ff9b4
|
jim-p
|
}
|
| 550 |
5bd033a0
|
Renato Botelho
|
return gettext("Unknown pass error.");
|
| 551 |
c0b6fdde
|
jim-p
|
}
|
| 552 |
9734b054
|
Scott Ullrich
|
|
| 553 |
bd40781a
|
Seth Mos
|
?>
|