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917a1aa0 JS |
1 | #!/bin/bash |
2 | ############################################################################### | |
3 | # # | |
4 | # IPFire.org - A linux based firewall # | |
5 | # Copyright (C) 2017 IPFire Network Development Team # | |
6 | # # | |
7 | # This program is free software: you can redistribute it and/or modify # | |
8 | # it under the terms of the GNU General Public License as published by # | |
9 | # the Free Software Foundation, either version 3 of the License, or # | |
10 | # (at your option) any later version. # | |
11 | # # | |
12 | # This program is distributed in the hope that it will be useful, # | |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of # | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # | |
15 | # GNU General Public License for more details. # | |
16 | # # | |
17 | # You should have received a copy of the GNU General Public License # | |
18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. # | |
19 | # # | |
20 | ############################################################################### | |
21 | ||
33944dfb MT |
22 | IPSEC_CONNECTION_CONFIG_SETTINGS="\ |
23 | AUTH_MODE \ | |
24 | DPD_ACTION \ | |
25 | DPD_DELAY \ | |
26 | DPD_TIMEOUT \ | |
27 | INACTIVITY_TIMEOUT \ | |
28 | LOCAL_ADDRESS \ | |
29 | LOCAL_ID \ | |
30 | LOCAL_PREFIX \ | |
31 | MODE \ | |
32 | PEER \ | |
33 | PSK \ | |
34 | REMOTE_ID \ | |
35 | REMOTE_PREFIX \ | |
36 | SECURITY_POLICY" | |
917a1aa0 JS |
37 | |
38 | # Default values | |
ab589039 | 39 | IPSEC_DEFAULT_AUTH_MODE="PSK" |
bb9fccaf JS |
40 | IPSEC_DEFAULT_DPD_ACTION="restart" |
41 | IPSEC_DEFAULT_DPD_DELAY="30" | |
42 | IPSEC_DEFAULT_DPD_TIMEOUT="120" | |
917a1aa0 | 43 | IPSEC_DEFAULT_INACTIVITY_TIMEOUT="0" |
bb9fccaf | 44 | IPSEC_DEFAULT_MODE="tunnel" |
917a1aa0 | 45 | IPSEC_DEFAULT_SECURITY_POLICY="system" |
bb9fccaf | 46 | IPSEC_DEFAULT_START_ACTION="on-demand" |
917a1aa0 JS |
47 | |
48 | IPSEC_VALID_MODES="gre-transport tunnel vti" | |
ab589039 | 49 | IPSEC_VALID_AUTH_MODES="PSK" |
917a1aa0 | 50 | |
2da98f56 MT |
51 | cli_ipsec() { |
52 | local action=${1} | |
53 | shift 1 | |
54 | ||
55 | case "${action}" in | |
56 | connection) | |
57 | cli_ipsec_connection $@ | |
58 | ;; | |
59 | *) | |
60 | error "Unrecognized argument: ${action}" | |
61 | exit ${EXIT_ERROR} | |
62 | ;; | |
63 | esac | |
64 | } | |
65 | ||
66 | cli_ipsec_connection() { | |
67 | if ipsec_connection_exists ${1}; then | |
68 | local connection=${1} | |
69 | local key=${2} | |
70 | key=${key//-/_} | |
71 | shift 2 | |
72 | ||
73 | case "${key}" in | |
3cde31b9 | 74 | authentication|down|dpd|inactivity_timeout|local|mode|peer|remote|security_policy|start_action|up) |
2da98f56 MT |
75 | ipsec_connection_${key} ${connection} $@ |
76 | ;; | |
c1e76e97 MT |
77 | show) |
78 | cli_ipsec_connection_show "${connection}" | |
79 | exit $? | |
80 | ;; | |
2da98f56 MT |
81 | *) |
82 | error "Unrecognized argument: ${key}" | |
83 | exit ${EXIT_ERROR} | |
84 | ;; | |
85 | esac | |
86 | else | |
87 | local action=${1} | |
88 | shift | |
89 | ||
90 | case "${action}" in | |
91 | new) | |
92 | ipsec_connection_new $@ | |
93 | ;; | |
94 | destroy) | |
95 | ipsec_connection_destroy $@ | |
96 | ;; | |
97 | ""|*) | |
98 | if [ -n "${action}" ]; then | |
99 | error "Unrecognized argument: '${action}'" | |
100 | fi | |
101 | exit ${EXIT_ERROR} | |
102 | ;; | |
103 | esac | |
104 | fi | |
105 | } | |
106 | ||
c1e76e97 MT |
107 | cli_ipsec_connection_show() { |
108 | local connection="${1}" | |
109 | ||
110 | # Read the config settings | |
111 | local ${IPSEC_CONNECTION_CONFIG_SETTINGS} | |
112 | if ! ipsec_connection_read_config "${connection}"; then | |
113 | error "Could not read the connection configuration" | |
114 | return ${EXIT_ERROR} | |
115 | fi | |
116 | ||
117 | cli_headline 0 "IPsec VPN Connection: ${connection}" | |
118 | cli_space | |
119 | ||
120 | # Peer | |
121 | if isset PEER; then | |
122 | cli_print_fmt1 1 "Peer" "${PEER}" | |
123 | fi | |
124 | ||
125 | # Security Policy | |
126 | cli_print_fmt1 1 "Security Policy" "${SECURITY_POLICY-${IPSEC_DEFAULT_SECURITY_POLICY}}" | |
127 | cli_space | |
128 | ||
129 | cli_headline 2 "Authentication" | |
130 | case "${AUTH_MODE^^}" in | |
131 | PSK) | |
132 | cli_print_fmt1 2 "Mode" "Pre-Shared-Key" | |
133 | ||
134 | if isset PSK; then | |
135 | cli_print_fmt1 2 "Pre-Shared-Key" "****" | |
136 | else | |
137 | cli_print_fmt1 2 "Pre-Shared-Key" "- is not set -" | |
138 | fi | |
139 | ;; | |
140 | X509) | |
141 | : # TODO | |
142 | ;; | |
143 | esac | |
144 | cli_space | |
145 | ||
146 | local i | |
147 | for i in LOCAL REMOTE; do | |
148 | case "${i}" in | |
149 | LOCAL) | |
150 | cli_headline 2 "Local" | |
151 | ;; | |
152 | REMOTE) | |
153 | cli_headline 2 "Remote" | |
154 | ;; | |
155 | esac | |
156 | ||
157 | local id_var="${i}_ID" | |
158 | if [ -n "${!id_var}" ]; then | |
159 | cli_print_fmt1 2 "ID" "${!id_var}" | |
160 | fi | |
161 | ||
162 | local prefix_var="${i}_PREFIX" | |
163 | if isset ${prefix_var}; then | |
164 | cli_headline 3 "Prefix(es)" | |
165 | ||
166 | local prefix | |
167 | for prefix in ${!prefix_var}; do | |
168 | cli_print_fmt1 3 "${prefix}" | |
169 | done | |
170 | fi | |
171 | ||
172 | cli_space | |
173 | done | |
174 | ||
175 | cli_headline 2 "Misc." | |
176 | ||
177 | case "${MODE}" in | |
178 | gre-transport) | |
179 | cli_print_fmt1 2 "Transport Mode" "GRE Transport" | |
180 | ;; | |
181 | tunnel) | |
182 | cli_print_fmt1 2 "Transport Mode" "Tunnel" | |
183 | ;; | |
184 | vti) | |
185 | cli_print_fmt1 2 "Transport Mode" "Virtual Tunnel Interface" | |
186 | ;; | |
187 | *) | |
188 | cli_print_fmt1 2 "Transport Mode" "- Unknown -" | |
189 | ;; | |
190 | esac | |
191 | ||
192 | # Inactivity timeout | |
193 | if isset INACTIVITY_TIMEOUT && [ ${INACTIVITY_TIMEOUT} -gt 0 ]; then | |
194 | cli_print_fmt1 2 "Inactivity Timeout" "$(format_time ${INACTIVITY_TIMEOUT})" | |
195 | fi | |
196 | cli_space | |
197 | ||
198 | return ${EXIT_OK} | |
199 | } | |
200 | ||
917a1aa0 JS |
201 | # This function writes all values to a via ${connection} specificated VPN IPsec configuration file |
202 | ipsec_connection_write_config() { | |
203 | assert [ $# -ge 1 ] | |
204 | ||
205 | local connection="${1}" | |
206 | ||
207 | if ! ipsec_connection_exists "${connection}"; then | |
208 | log ERROR "No such VPN IPsec connection: ${connection}" | |
209 | return ${EXIT_ERROR} | |
210 | fi | |
211 | ||
cf8685a1 | 212 | local path="${NETWORK_IPSEC_CONNS_DIR}/${connection}/settings" |
917a1aa0 JS |
213 | |
214 | if ! settings_write "${path}" ${IPSEC_CONNECTION_CONFIG_SETTINGS}; then | |
215 | log ERROR "Could not write configuration settings for VPN IPsec connection ${connection}" | |
216 | return ${EXIT_ERROR} | |
217 | fi | |
218 | ||
219 | ipsec_reload ${connection} | |
220 | } | |
221 | ||
222 | # This funtion writes the value for one key to a via ${connection} specificated VPN IPsec connection configuration file | |
223 | ipsec_connection_write_config_key() { | |
224 | assert [ $# -ge 3 ] | |
225 | ||
226 | local connection=${1} | |
227 | local key=${2} | |
228 | shift 2 | |
229 | ||
230 | local value="$@" | |
231 | ||
232 | if ! ipsec_connection_exists "${connection}"; then | |
233 | log ERROR "No such VPN ipsec connection: ${connection}" | |
234 | return ${EXIT_ERROR} | |
235 | fi | |
236 | ||
237 | log DEBUG "Set '${key}' to new value '${value}' in VPN ipsec connection '${connection}'" | |
238 | ||
239 | local ${IPSEC_CONNECTION_CONFIG_SETTINGS} | |
240 | ||
241 | # Read the config settings | |
242 | if ! ipsec_connection_read_config "${connection}"; then | |
243 | return ${EXIT_ERROR} | |
244 | fi | |
245 | ||
246 | # Set the key to a new value | |
247 | assign "${key}" "${value}" | |
248 | ||
249 | if ! ipsec_connection_write_config "${connection}"; then | |
250 | return ${EXIT_ERROR} | |
251 | fi | |
252 | ||
253 | return ${EXIT_TRUE} | |
254 | } | |
255 | ||
256 | # Reads one or more keys out of a settings file or all if no key is provided. | |
257 | ipsec_connection_read_config() { | |
258 | assert [ $# -ge 1 ] | |
259 | ||
260 | local connection="${1}" | |
261 | shift 1 | |
262 | ||
263 | if ! ipsec_connection_exists "${connection}"; then | |
264 | log ERROR "No such VPN IPsec connection : ${connection}" | |
265 | return ${EXIT_ERROR} | |
266 | fi | |
267 | ||
268 | ||
269 | local args | |
270 | if [ $# -eq 0 ] && [ -n "${IPSEC_CONNECTION_CONFIG_SETTINGS}" ]; then | |
271 | list_append args ${IPSEC_CONNECTION_CONFIG_SETTINGS} | |
272 | else | |
273 | list_append args $@ | |
274 | fi | |
275 | ||
cf8685a1 | 276 | local path="${NETWORK_IPSEC_CONNS_DIR}/${connection}/settings" |
917a1aa0 JS |
277 | |
278 | if ! settings_read "${path}" ${args}; then | |
279 | log ERROR "Could not read settings for VPN IPsec connection ${connection}" | |
280 | return ${EXIT_ERROR} | |
281 | fi | |
282 | } | |
283 | ||
917a1aa0 JS |
284 | # This function checks if a vpn ipsec connection exists |
285 | # Returns True when yes and false when not | |
286 | ipsec_connection_exists() { | |
287 | assert [ $# -eq 1 ] | |
288 | ||
289 | local connection=${1} | |
290 | ||
cf8685a1 | 291 | local path="${NETWORK_IPSEC_CONNS_DIR}/${connection}" |
917a1aa0 JS |
292 | |
293 | [ -d "${path}" ] && return ${EXIT_TRUE} || return ${EXIT_FALSE} | |
294 | } | |
295 | ||
296 | # Reloads the connection after config changes | |
297 | ipsec_reload() { | |
298 | return ${EXIT_TRUE} | |
299 | } | |
300 | ||
301 | # Handle the cli after authentification | |
302 | ipsec_connection_authentication() { | |
303 | if [ ! $# -gt 1 ]; then | |
304 | log ERROR "Not enough arguments" | |
305 | return ${EXIT_ERROR} | |
306 | fi | |
307 | ||
308 | local connection=${1} | |
309 | local cmd=${2} | |
310 | shift 2 | |
311 | ||
312 | case ${cmd} in | |
313 | mode) | |
314 | ipsec_connection_authentication_mode "${connection}" $@ | |
315 | ;; | |
316 | pre-shared-key) | |
317 | ipsec_connection_authentication_psk "${connection}" $@ | |
318 | ;; | |
319 | *) | |
320 | log ERROR "Unrecognized argument: ${cmd}" | |
321 | return ${EXIT_ERROR} | |
322 | ;; | |
323 | esac | |
324 | } | |
325 | ||
326 | # Set the authentification mode | |
327 | ipsec_connection_authentication_mode() { | |
328 | if [ ! $# -eq 2 ]; then | |
329 | log ERROR "Not enough arguments" | |
330 | return ${EXIT_ERROR} | |
331 | fi | |
332 | local connection=${1} | |
333 | local mode=${2} | |
334 | ||
335 | if ! isoneof mode ${IPSEC_VALID_AUTH_MODES}; then | |
336 | log ERROR "Auth mode '${mode}' is invalid" | |
337 | return ${EXIT_ERROR} | |
338 | fi | |
339 | ||
ab589039 | 340 | if ! ipsec_connection_write_config_key "${connection}" "AUTH_MODE" ${mode^^}; then |
917a1aa0 JS |
341 | log ERROR "Could not write configuration settings" |
342 | return ${EXIT_ERROR} | |
343 | fi | |
344 | } | |
345 | ||
346 | # Set the psk | |
347 | ipsec_connection_authentication_psk() { | |
db491d1d | 348 | if [ ! $# -eq 2 ]; then |
917a1aa0 JS |
349 | log ERROR "Not enough arguments" |
350 | return ${EXIT_ERROR} | |
351 | fi | |
1bfc4f56 | 352 | |
917a1aa0 JS |
353 | local connection=${1} |
354 | local psk=${2} | |
355 | ||
1bfc4f56 MT |
356 | local length=${#psk} |
357 | ||
358 | if [ ${length} -lt 4 ]; then | |
359 | error "The PSK must be longer than four characters" | |
360 | return ${EXIT_ERROR} | |
361 | fi | |
362 | ||
363 | if [ ${length} -gt 128 ]; then | |
364 | error "The PSK cannot be longer than 128 characters" | |
365 | return ${EXIT_ERROR} | |
366 | fi | |
917a1aa0 | 367 | |
1bfc4f56 | 368 | if ! ipsec_connection_write_config_key "${connection}" "PSK" "${psk}"; then |
917a1aa0 JS |
369 | log ERROR "Could not write configuration settings" |
370 | return ${EXIT_ERROR} | |
371 | fi | |
372 | ||
373 | return ${EXIT_OK} | |
374 | } | |
375 | ||
3cde31b9 MT |
376 | ipsec_connection_up() { |
377 | local connection="${1}" | |
378 | ||
379 | if ! ipsec_connection_exists "${connection}"; then | |
380 | error "No such VPN IPsec connection: ${connection}" | |
381 | return ${EXIT_ERROR} | |
382 | fi | |
383 | ||
384 | cmd swanctl --initiate --child "${connection}" | |
385 | } | |
386 | ||
387 | ipsec_connection_down() { | |
388 | local connection="${1}" | |
389 | ||
390 | if ! ipsec_connection_exists "${connection}"; then | |
391 | error "No such VPN IPsec connection: ${connection}" | |
392 | return ${EXIT_ERROR} | |
393 | fi | |
394 | ||
395 | cmd swanctl --terminate --ike "${connection}" | |
396 | } | |
bb9fccaf JS |
397 | |
398 | # Handle the cli after authentification | |
399 | ipsec_connection_dpd() { | |
400 | if [ ! $# -gt 1 ]; then | |
401 | log ERROR "Not enough arguments" | |
402 | return ${EXIT_ERROR} | |
403 | fi | |
404 | ||
405 | local connection=${1} | |
406 | local cmd=${2} | |
407 | shift 2 | |
408 | ||
409 | case ${cmd} in | |
410 | action) | |
411 | ipsec_connection_dpd_action "${connection}" $@ | |
412 | ;; | |
413 | delay) | |
414 | ipsec_connection_dpd_delay "${connection}" $@ | |
415 | ;; | |
416 | timeout) | |
417 | ipsec_connection_dpd_timeout "${connection}" $@ | |
418 | ;; | |
419 | *) | |
420 | log ERROR "Unrecognized argument: ${cmd}" | |
421 | return ${EXIT_ERROR} | |
422 | ;; | |
423 | esac | |
424 | } | |
425 | ||
426 | # Set the default dpd action | |
427 | ipsec_connection_dpd_action() { | |
428 | if [ ! $# -eq 2 ]; then | |
429 | log ERROR "Not enough arguments" | |
430 | return ${EXIT_ERROR} | |
431 | fi | |
432 | local connection=${1} | |
433 | local action=${2} | |
434 | ||
435 | if ! isoneof action "restart" "clear"; then | |
436 | log ERROR "dpd action '${action}' is invalid" | |
437 | return ${EXIT_ERROR} | |
438 | fi | |
439 | ||
440 | if ! ipsec_connection_write_config_key "${connection}" "DPD_ACTION" ${action}; then | |
441 | log ERROR "Could not write configuration settings" | |
442 | return ${EXIT_ERROR} | |
443 | fi | |
444 | } | |
445 | ||
446 | # Set the dpd delay | |
447 | ipsec_connection_dpd_delay() { | |
448 | if [ ! $# -ge 2 ]; then | |
449 | log ERROR "Not enough arguments" | |
450 | return ${EXIT_ERROR} | |
451 | fi | |
452 | ||
453 | local connection=${1} | |
454 | shift 1 | |
455 | local value=$@ | |
456 | ||
457 | if ! isinteger value; then | |
458 | value=$(parse_time $@) | |
459 | if [ ! $? -eq 0 ]; then | |
460 | log ERROR "Parsing the passed time was not sucessful please check the passed values." | |
461 | return ${EXIT_ERROR} | |
462 | fi | |
463 | fi | |
464 | ||
465 | if [ ${value} -lt 0 ]; then | |
466 | log ERROR "The passed time value must be in the sum greater or equal zero seconds." | |
467 | return ${EXIT_ERROR} | |
468 | fi | |
469 | ||
470 | if ! ipsec_connection_write_config_key "${connection}" "DPD_DELAY" ${value}; then | |
471 | log ERROR "Could not write configuration settings" | |
472 | return ${EXIT_ERROR} | |
473 | fi | |
474 | ||
475 | return ${EXIT_OK} | |
476 | } | |
477 | ||
478 | # Set the dpd timeout | |
479 | ipsec_connection_dpd_timeout() { | |
480 | if [ ! $# -ge 2 ]; then | |
481 | log ERROR "Not enough arguments" | |
482 | return ${EXIT_ERROR} | |
483 | fi | |
484 | ||
485 | local connection=${1} | |
486 | shift 1 | |
487 | local value=$@ | |
488 | ||
489 | if ! isinteger value; then | |
490 | value=$(parse_time $@) | |
491 | if [ ! $? -eq 0 ]; then | |
492 | log ERROR "Parsing the passed time was not sucessful please check the passed values." | |
493 | return ${EXIT_ERROR} | |
494 | fi | |
495 | fi | |
496 | ||
497 | if [ ${value} -le 0 ]; then | |
498 | log ERROR "The passed time value must be in the sum greater or equal zero seconds." | |
499 | return ${EXIT_ERROR} | |
500 | fi | |
501 | ||
502 | if ! ipsec_connection_write_config_key "${connection}" "DPD_TIMEOUT" ${value}; then | |
503 | log ERROR "Could not write configuration settings" | |
504 | return ${EXIT_ERROR} | |
505 | fi | |
506 | ||
507 | return ${EXIT_OK} | |
508 | } | |
509 | ||
917a1aa0 JS |
510 | # Handle the cli after local |
511 | ipsec_connection_local() { | |
512 | if [ ! $# -ge 2 ]; then | |
513 | log ERROR "Not enough arguments" | |
514 | return ${EXIT_ERROR} | |
515 | fi | |
516 | ||
517 | local connection=${1} | |
518 | local cmd=${2} | |
519 | shift 2 | |
520 | ||
521 | case ${cmd} in | |
bb9fccaf JS |
522 | address) |
523 | ipsec_connection_local_address "${connection}" $@ | |
524 | ;; | |
917a1aa0 JS |
525 | id) |
526 | ipsec_connection_id "${connection}" "LOCAL" $@ | |
527 | ;; | |
528 | prefix) | |
529 | ipsec_connection_prefix "${connection}" "LOCAL" $@ | |
530 | ;; | |
531 | *) | |
532 | log ERROR "Unrecognized argument: ${cmd}" | |
533 | return ${EXIT_ERROR} | |
534 | ;; | |
535 | esac | |
536 | ||
537 | return ${EXIT_OK} | |
538 | } | |
539 | ||
540 | # Set the connection mode | |
541 | ipsec_connection_mode() { | |
5bdbc2ee | 542 | if [ ! $# -eq 2 ]; then |
917a1aa0 JS |
543 | log ERROR "Not enough arguments" |
544 | return ${EXIT_ERROR} | |
545 | fi | |
546 | local connection=${1} | |
547 | local mode=${2} | |
548 | ||
549 | if ! isoneof mode ${IPSEC_VALID_MODES}; then | |
550 | log ERROR "Mode '${mode}' is invalid" | |
551 | return ${EXIT_ERROR} | |
552 | fi | |
553 | ||
554 | if ! ipsec_connection_write_config_key "${connection}" "MODE" ${mode}; then | |
555 | log ERROR "Could not write configuration settings" | |
556 | return ${EXIT_ERROR} | |
557 | fi | |
558 | ||
559 | return ${EXIT_OK} | |
560 | } | |
561 | ||
bb9fccaf JS |
562 | # Set the local address |
563 | ipsec_connection_local_address() { | |
564 | if [ ! $# -eq 2 ]; then | |
565 | log ERROR "Not enough arguments" | |
566 | return ${EXIT_ERROR} | |
567 | fi | |
568 | local connection=${1} | |
569 | local local_address=${2} | |
570 | ||
571 | if ! ipsec_connection_check_peer ${local_address}; then | |
572 | log ERROR "Local address '${local_address}' is invalid" | |
573 | return ${EXIT_ERROR} | |
574 | fi | |
575 | ||
576 | if ! ipsec_connection_write_config_key "${connection}" "LOCAL_ADDRESS" ${local_address}; then | |
577 | log ERROR "Could not write configuration settings" | |
578 | return ${EXIT_ERROR} | |
579 | fi | |
580 | ||
581 | return ${EXIT_OK} | |
582 | } | |
583 | ||
917a1aa0 JS |
584 | # Set the peer to connect to |
585 | ipsec_connection_peer() { | |
0b962a64 | 586 | if [ ! $# -eq 2 ]; then |
917a1aa0 JS |
587 | log ERROR "Not enough arguments" |
588 | return ${EXIT_ERROR} | |
589 | fi | |
590 | local connection=${1} | |
591 | local peer=${2} | |
592 | ||
593 | if ! ipsec_connection_check_peer ${peer}; then | |
594 | log ERROR "Peer '${peer}' is invalid" | |
595 | return ${EXIT_ERROR} | |
596 | fi | |
597 | ||
598 | if ! ipsec_connection_write_config_key "${connection}" "PEER" ${peer}; then | |
599 | log ERROR "Could not write configuration settings" | |
600 | return ${EXIT_ERROR} | |
601 | fi | |
602 | ||
603 | return ${EXIT_OK} | |
604 | } | |
605 | ||
606 | #Set the local or remote id | |
607 | ipsec_connection_id() { | |
608 | if [ ! $# -eq 3 ]; then | |
609 | log ERROR "Not enough arguments" | |
610 | return ${EXIT_ERROR} | |
611 | fi | |
612 | local connection=${1} | |
613 | local type=${2} | |
614 | local id=${3} | |
615 | ||
616 | if ! ipsec_connection_check_id ${id}; then | |
617 | log ERROR "Id '${id}' is invalid" | |
618 | return ${EXIT_ERROR} | |
619 | fi | |
620 | ||
621 | if ! ipsec_connection_write_config_key "${connection}" "${type}_ID" ${id}; then | |
622 | log ERROR "Could not write configuration settings" | |
623 | return ${EXIT_ERROR} | |
624 | fi | |
625 | ||
626 | return ${EXIT_OK} | |
627 | } | |
628 | ||
629 | # Set the local or remote prefix | |
630 | ipsec_connection_prefix() { | |
631 | if [ ! $# -ge 3 ]; then | |
632 | log ERROR "Not enough arguments" | |
633 | return ${EXIT_ERROR} | |
634 | fi | |
635 | local connection=${1} | |
636 | local type=${2} | |
637 | shift 2 | |
638 | ||
639 | local _prefix="${type}_PREFIX" | |
640 | local "${_prefix}" | |
641 | if ! ipsec_connection_read_config "${connection}" "${_prefix}"; then | |
642 | return ${EXIT_ERROR} | |
643 | fi | |
644 | ||
645 | # Remove duplicated entries to proceed the list safely | |
646 | assign "${_prefix}" "$(list_unique ${!_prefix} )" | |
647 | ||
648 | local prefixes_added | |
649 | local prefixes_removed | |
650 | local prefixes_set | |
651 | ||
652 | while [ $# -gt 0 ]; do | |
653 | local arg="${1}" | |
654 | ||
655 | case "${arg}" in | |
656 | +*) | |
657 | list_append prefixes_added "${arg:1}" | |
658 | ;; | |
659 | -*) | |
660 | list_append prefixes_removed "${arg:1}" | |
661 | ;; | |
662 | [A-Fa-f0-9]*) | |
663 | list_append prefixes_set "${arg}" | |
664 | ;; | |
665 | *) | |
666 | error "Invalid argument: ${arg}" | |
667 | return ${EXIT_ERROR} | |
668 | ;; | |
669 | esac | |
670 | shift | |
671 | done | |
672 | ||
673 | # Check if the user is trying a mixed operation | |
674 | if ! list_is_empty prefixes_set && (! list_is_empty prefixes_added || ! list_is_empty prefixes_removed); then | |
675 | error "You cannot reset the prefix list and add or remove prefixes at the same time" | |
676 | return ${EXIT_ERROR} | |
677 | fi | |
678 | ||
679 | # Set new prefix list | |
680 | if ! list_is_empty prefixes_set; then | |
681 | # Check if all prefixes are valid | |
682 | local prefix | |
683 | for prefix in ${prefixes_set}; do | |
684 | if ! ip_net_is_valid ${prefix}; then | |
685 | error "Unsupported prefix: ${prefix}" | |
686 | return ${EXIT_ERROR} | |
687 | fi | |
688 | done | |
689 | ||
690 | assign "${_prefix}" "${prefixes_set}" | |
691 | ||
692 | # Perform incremental updates | |
693 | else | |
694 | local prefix | |
695 | ||
696 | # Perform all removals | |
697 | for prefix in ${prefixes_removed}; do | |
698 | if ! list_remove "${_prefix}" ${prefix}; then | |
699 | warning "${prefix} was not on the list and could not be removed" | |
700 | fi | |
701 | done | |
702 | ||
703 | ||
704 | for prefix in ${prefixes_added}; do | |
705 | if ip_net_is_valid ${prefix}; then | |
706 | if ! list_append_unique "${_prefix}" ${prefix}; then | |
707 | warning "${prefix} is already on the prefix list" | |
708 | fi | |
709 | else | |
f03f29b7 | 710 | warning "${prefix} is not a valid IP network and could not be added" |
917a1aa0 JS |
711 | fi |
712 | done | |
713 | fi | |
714 | ||
715 | # Check if the list contain at least one valid prefix | |
716 | if list_is_empty ${_prefix}; then | |
717 | error "Cannot save an empty prefix list" | |
718 | return ${EXIT_ERROR} | |
719 | fi | |
720 | ||
721 | # Save everything | |
722 | if ! ipsec_connection_write_config_key "${connection}" "${_prefix}" ${!_prefix}; then | |
723 | log ERROR "Could not write configuration settings" | |
724 | fi | |
725 | ||
726 | return ${EXIT_OK} | |
727 | } | |
728 | ||
729 | # Handle the cli after remote | |
730 | ipsec_connection_remote() { | |
731 | if [ ! $# -ge 2 ]; then | |
732 | log ERROR "Not enough arguments" | |
733 | return ${EXIT_ERROR} | |
734 | fi | |
735 | ||
736 | local connection=${1} | |
737 | local cmd=${2} | |
738 | shift 2 | |
739 | ||
740 | case ${cmd} in | |
741 | id) | |
742 | ipsec_connection_id "${connection}" "REMOTE" $@ | |
743 | ;; | |
744 | ||
745 | prefix) | |
746 | ipsec_connection_prefix "${connection}" "REMOTE" $@ | |
747 | ;; | |
748 | *) | |
749 | log ERROR "Unrecognized argument: ${cmd}" | |
750 | return ${EXIT_ERROR} | |
751 | ;; | |
752 | esac | |
753 | ||
754 | return ${EXIT_OK} | |
755 | } | |
756 | ||
757 | # Set the inactivity timeout | |
758 | ipsec_connection_inactivity_timeout() { | |
759 | if [ ! $# -ge 2 ]; then | |
760 | log ERROR "Not enough arguments" | |
761 | return ${EXIT_ERROR} | |
762 | fi | |
763 | ||
764 | local connection=${1} | |
765 | shift 1 | |
766 | local value=$@ | |
767 | ||
768 | if ! isinteger value; then | |
769 | value=$(parse_time $@) | |
770 | if [ ! $? -eq 0 ]; then | |
771 | log ERROR "Parsing the passed time was not sucessful please check the passed values." | |
772 | return ${EXIT_ERROR} | |
773 | fi | |
774 | fi | |
775 | ||
776 | if [ ${value} -le 0 ]; then | |
777 | log ERROR "The passed time value must be in the sum greater zero seconds." | |
778 | return ${EXIT_ERROR} | |
779 | fi | |
780 | ||
781 | if ! ipsec_connection_write_config_key "${connection}" "INACTIVITY_TIMEOUT" ${value}; then | |
782 | log ERROR "Could not write configuration settings" | |
783 | return ${EXIT_ERROR} | |
784 | fi | |
785 | ||
786 | return ${EXIT_OK} | |
787 | } | |
788 | ||
bb9fccaf JS |
789 | # Set the default start action |
790 | ipsec_connection_start_action() { | |
791 | if [ ! $# -eq 2 ]; then | |
792 | log ERROR "Not enough arguments" | |
793 | return ${EXIT_ERROR} | |
794 | fi | |
795 | local connection=${1} | |
796 | local action=${2} | |
797 | ||
798 | if ! isoneof action "on-demand" "always-on"; then | |
799 | log ERROR "Start action '${action}' is invalid" | |
800 | return ${EXIT_ERROR} | |
801 | fi | |
802 | ||
803 | if ! ipsec_connection_write_config_key "${connection}" "START_ACTION" ${action}; then | |
804 | log ERROR "Could not write configuration settings" | |
805 | return ${EXIT_ERROR} | |
806 | fi | |
807 | } | |
917a1aa0 JS |
808 | |
809 | # Set the security policy to use | |
810 | ipsec_connection_security_policy() { | |
811 | if [ ! $# -eq 2 ]; then | |
812 | log ERROR "Not enough arguments" | |
813 | return ${EXIT_ERROR} | |
814 | fi | |
815 | local connection=${1} | |
816 | local security_policy=${2} | |
817 | ||
818 | if ! vpn_security_policy_exists ${security_policy}; then | |
819 | log ERROR "No such vpn security policy '${security_policy}'" | |
820 | return ${EXIT_ERROR} | |
821 | fi | |
822 | ||
823 | if ! ipsec_connection_write_config_key "${connection}" "SECURITY_POLICY" ${security_policy}; then | |
824 | log ERROR "Could not write configuration settings" | |
825 | return ${EXIT_ERROR} | |
826 | fi | |
827 | } | |
828 | ||
829 | # Check if a id is valid | |
830 | ipsec_connection_check_id() { | |
831 | assert [ $# -eq 1 ] | |
832 | local id=${1} | |
833 | ||
834 | if [[ ${id} =~ ^@[[:alnum:]]+$ ]] || ip_is_valid ${id}; then | |
835 | return ${EXIT_TRUE} | |
836 | else | |
837 | return ${EXIT_FALSE} | |
838 | fi | |
839 | } | |
840 | ||
841 | # Checks if a peer is valid | |
842 | ipsec_connection_check_peer() { | |
843 | assert [ $# -eq 1 ] | |
844 | local peer=${1} | |
845 | ||
846 | # TODO Accept also FQDNs | |
847 | if ip_is_valid ${peer}; then | |
848 | return ${EXIT_TRUE} | |
849 | else | |
850 | return ${EXIT_FALSE} | |
851 | fi | |
852 | } | |
853 | ||
854 | # This function checks if a VPN IPsec connection name is valid | |
855 | # Allowed are only A-Za-z0-9 | |
856 | ipsec_connection_check_name() { | |
857 | assert [ $# -eq 1 ] | |
858 | ||
859 | local connection=${1} | |
860 | ||
861 | [[ "${connection}" =~ [^[:alnum:]$] ]] | |
862 | } | |
863 | ||
864 | # Function that creates one VPN IPsec connection | |
865 | ipsec_connection_new() { | |
866 | if [ $# -gt 1 ]; then | |
867 | error "Too many arguments" | |
868 | return ${EXIT_ERROR} | |
869 | fi | |
870 | ||
871 | local connection="${1}" | |
872 | if ! isset connection; then | |
873 | error "Please provide a connection name" | |
874 | return ${EXIT_ERROR} | |
875 | fi | |
876 | ||
877 | # Check for duplicates | |
878 | if ipsec_connection_exists "${connection}"; then | |
879 | error "The VPN IPsec connection ${connection} already exists" | |
880 | return ${EXIT_ERROR} | |
881 | fi | |
882 | ||
883 | # Check if the name of the connection is valid | |
884 | if ipsec_connection_check_name "${connection}"; then | |
885 | error "'${connection}' contains illegal characters" | |
886 | return ${EXIT_ERROR} | |
887 | fi | |
888 | ||
889 | log DEBUG "Creating VPN IPsec connection ${connection}" | |
890 | ||
cf8685a1 | 891 | if ! mkdir -p "${NETWORK_IPSEC_CONNS_DIR}/${connection}"; then |
917a1aa0 JS |
892 | log ERROR "Could not create config directory for ${connection}" |
893 | return ${EXIT_ERROR} | |
894 | fi | |
895 | ||
896 | local ${IPSEC_CONNECTION_CONFIG_SETTINGS} | |
897 | ||
917a1aa0 | 898 | AUTH_MODE=${IPSEC_DEFAULT_AUTH_MODE} |
bb9fccaf JS |
899 | DPD_ACTION=${IPSEC_DEFAULT_DPD_ACTION} |
900 | DPD_DELAY=${IPSEC_DEFAULT_DPD_DELAY} | |
901 | DPD_TIMEOUT=${IPSEC_DEFAULT_DPD_TIMEOUT} | |
902 | MODE=${IPSEC_DEFAULT_MODE} | |
903 | START_ACTION=${IPSEC_DEFAULT_START_ACTION} | |
904 | ||
917a1aa0 JS |
905 | INACTIVITY_TIMEOUT=${IPSEC_DEFAULT_INACTIVITY_TIMEOUT} |
906 | SECURITY_POLICY=${IPSEC_DEFAULT_SECURITY_POLICY} | |
907 | ||
908 | if ! ipsec_connection_write_config "${connection}"; then | |
909 | log ERROR "Could not write new config file" | |
910 | return ${EXIT_ERROR} | |
911 | fi | |
912 | } | |
913 | ||
914 | # Function that deletes based on the passed parameters one ore more vpn security policies | |
915 | ipsec_connection_destroy() { | |
916 | local connection | |
917 | for connection in $@; do | |
918 | if ! ipsec_connection_exists "${connection}"; then | |
919 | log ERROR "The VPN IPsec connection ${connection} does not exist." | |
920 | continue | |
921 | fi | |
922 | ||
923 | log DEBUG "Deleting VPN IPsec connection ${connection}" | |
cf8685a1 | 924 | if ! rm -rf "${NETWORK_IPSEC_CONNS_DIR}/${connection}"; then |
917a1aa0 JS |
925 | log ERROR "Deleting the VPN IPsec connection ${connection} was not sucessful" |
926 | return ${EXIT_ERROR} | |
927 | fi | |
928 | done | |
929 | } | |
d6c852b8 JS |
930 | |
931 | # List all ipsec connections | |
932 | ipsec_list_connections() { | |
933 | local connection | |
934 | for connection in ${NETWORK_IPSEC_CONNS_DIR}/*; do | |
935 | [ -d ${connection} ] || continue | |
936 | basename ${connection} | |
937 | done | |
938 | } | |
67baa452 MT |
939 | |
940 | ipsec_connection_to_strongswan() { | |
941 | local connection="${1}" | |
942 | ||
943 | # Read the config settings | |
944 | local ${IPSEC_CONNECTION_CONFIG_SETTINGS} | |
945 | if ! ipsec_connection_read_config "${connection}"; then | |
946 | error "Could not read the connection ${connection}" | |
947 | return ${EXIT_ERROR} | |
948 | fi | |
949 | ||
950 | local path="${NETWORK_IPSEC_SWANCTL_CONNECTIONS_DIR}/${connection}.conf" | |
951 | ||
952 | ( | |
953 | # Write the connection section | |
954 | _ipsec_connection_to_strongswan_connection "${connection}" | |
955 | ||
956 | # Write the secrets section | |
957 | _ipsec_connection_to_strongswan_secrets "${connection}" | |
958 | ||
959 | ) > ${path} | |
960 | } | |
961 | ||
962 | _ipsec_connection_to_strongswan_connection() { | |
963 | local connection="${1}" | |
964 | ||
965 | # Read the security policy | |
966 | local ${VPN_SECURITY_POLICIES_CONFIG_SETTINGS} | |
967 | if ! vpn_security_policies_read_config "${SECURITY_POLICY}"; then | |
968 | return ${EXIT_ERROR} | |
969 | fi | |
970 | ||
4e271faa MT |
971 | # Is DPD enabled? |
972 | local dpd="false" | |
973 | if isset DPD_DELAY && isinteger DPD_DELAY && [ ${DPD_DELAY} -gt 0 ]; then | |
974 | dpd="true" | |
975 | fi | |
976 | ||
67baa452 MT |
977 | print_indent 0 "connections {" |
978 | print_indent 1 "${connection} {" | |
979 | ||
980 | # IKE Version | |
981 | print_indent 2 "# IKE Version" | |
982 | case "${KEY_EXCHANGE^^}" in | |
983 | IKEV1) | |
984 | print_indent 2 "version = 1" | |
985 | ;; | |
986 | ||
987 | # Fall back to IKEv2 for any random values | |
988 | IKEV2|*) | |
989 | print_indent 2 "version = 2" | |
990 | ;; | |
991 | esac | |
992 | print # empty line | |
993 | ||
3e8ad776 MT |
994 | # Local Address |
995 | print_indent 2 "# Local Address" | |
996 | if isset LOCAL_ADDRESS; then | |
997 | print_indent 2 "local_addrs = ${LOCAL_ADDRESS}" | |
998 | else | |
999 | print_indent 2 "local_addrs = %any" | |
1000 | fi | |
1001 | ||
67baa452 MT |
1002 | |
1003 | # Remote Address | |
1004 | print_indent 2 "# Remote Address" | |
1005 | if isset PEER; then | |
1006 | print_indent 2 "remote_addrs = ${PEER}" | |
1007 | else | |
1008 | print_indent 2 "remote_addrs = %any" | |
1009 | fi | |
1010 | ||
1011 | ||
1012 | # IKE Proposals | |
1013 | print_indent 2 "# IKE Proposals" | |
1014 | print_indent 2 "proposals = $(vpn_security_policies_make_ah_proposal ${SECURITY_POLICY})" | |
1015 | ||
1016 | ||
117278c3 | 1017 | # DPD Settings |
4e271faa | 1018 | if enabled dpd; then |
117278c3 | 1019 | print_indent 2 "# Dead Peer Detection" |
117278c3 MT |
1020 | print_indent 2 "dpd_delay = ${DPD_DELAY}" |
1021 | ||
1022 | if isset DPD_TIMEOUT; then | |
1023 | print_indent 2 "dpd_timeout = ${DPD_TIMEOUT}" | |
1024 | fi | |
1025 | ||
1026 | ||
1027 | fi | |
67baa452 MT |
1028 | |
1029 | # Fragmentation | |
1030 | print_indent 2 "# Fragmentation" | |
1031 | print_indent 2 "fragmentation = yes" | |
1032 | ||
1033 | ||
1034 | # Local | |
1035 | print_indent 2 "local {" | |
1036 | ||
1037 | # Local ID | |
1038 | if isset LOCAL_ID; then | |
1039 | print_indent 3 "id = ${LOCAL_ID}" | |
1040 | fi | |
1041 | ||
1042 | # Authentication | |
1043 | case "${AUTH_MODE}" in | |
1044 | PSK) | |
1045 | print_indent 3 "auth = psk" | |
1046 | ;; | |
1047 | esac | |
1048 | ||
1049 | print_indent 2 "}" | |
1050 | ||
1051 | ||
1052 | # Remote | |
1053 | print_indent 2 "remote {" | |
1054 | ||
1055 | # Remote ID | |
1056 | if isset REMOTE_ID; then | |
1057 | print_indent 3 "id = ${REMOTE_ID}" | |
1058 | fi | |
1059 | ||
1060 | # Authentication | |
1061 | case "${AUTH_MODE}" in | |
1062 | PSK) | |
1063 | print_indent 3 "auth = psk" | |
1064 | ;; | |
1065 | esac | |
1066 | ||
1067 | print_indent 2 "}" | |
1068 | ||
1069 | ||
1070 | # Children | |
1071 | ||
1072 | print_indent 2 "children {" | |
1073 | print_indent 3 "${connection} {" | |
1074 | ||
1075 | print_indent 4 "# ESP Proposals" | |
1076 | print_indent 4 "esp_proposals = $(vpn_security_policies_make_esp_proposal ${SECURITY_POLICY})" | |
1077 | ||
1078 | ||
1079 | # Traffic Selectors | |
1080 | ||
95835d23 MT |
1081 | case "${MODE}" in |
1082 | gre-*) | |
1083 | print_indent 4 "local_ts = dynamic[gre]" | |
1084 | print_indent 4 "remote_ts = dynamic[gre]" | |
1085 | ;; | |
1086 | *) | |
1087 | # Local Prefixes | |
1088 | if isset LOCAL_PREFIX; then | |
1089 | print_indent 4 "local_ts = $(list_join LOCAL_PREFIX ,)" | |
1090 | else | |
1091 | print_indent 4 "local_ts = dynamic" | |
1092 | fi | |
67baa452 | 1093 | |
95835d23 MT |
1094 | # Remote Prefixes |
1095 | if isset REMOTE_PREFIX; then | |
1096 | print_indent 4 "remote_ts = $(list_join REMOTE_PREFIX ,)" | |
1097 | else | |
1098 | print_indent 4 "remote_ts = dynamic" | |
1099 | fi | |
1100 | ;; | |
1101 | esac | |
67baa452 MT |
1102 | |
1103 | ||
82fac748 MT |
1104 | # Netfilter Marks |
1105 | print_indent 4 "# Netfilter Marks" | |
1106 | print_indent 4 "mark_in = %unique" | |
1107 | print_indent 4 "mark_out = %unique" | |
1108 | ||
1109 | ||
4e271faa MT |
1110 | # Dead Peer Detection |
1111 | if enabled dpd; then | |
1112 | print_indent 4 "# Dead Peer Detection" | |
1113 | print_indent 4 "dpd_action = ${DPD_ACTION}" | |
1114 | ||
1115 | fi | |
1116 | ||
67baa452 MT |
1117 | # Rekeying |
1118 | if isset LIFETIME; then | |
1119 | print_indent 4 "# Rekey Time" | |
1120 | print_indent 4 "rekey_time = ${LIFETIME}" | |
1121 | ||
1122 | fi | |
1123 | ||
1124 | # Updown Script | |
1125 | print_indent 4 "updown = ${NETWORK_HELPERS_DIR}/ipsec-updown" | |
1126 | ||
1127 | ||
1128 | # Mode | |
1129 | print_indent 4 "# Mode" | |
1130 | case "${MODE}" in | |
1131 | gre-transport) | |
1132 | print_indent 4 "mode = transport" | |
1133 | ;; | |
1134 | tunnel|vti|*) | |
1135 | print_indent 4 "mode = tunnel" | |
1136 | ;; | |
1137 | esac | |
1138 | ||
1139 | ||
1140 | # Compression | |
1141 | print_indent 4 "# Compression" | |
1142 | if enabled COMPRESSION; then | |
1143 | print_indent 4 "ipcomp = yes" | |
1144 | else | |
1145 | print_indent 4 "ipcomp = no" | |
1146 | fi | |
1147 | ||
1148 | ||
1149 | # Inactivity Timeout | |
1150 | if isset INACTIVITY_TIMEOUT; then | |
1151 | print_indent 4 "# Inactivity Timeout" | |
1152 | print_indent 4 "inactivity = ${INACTIVITY_TIMEOUT}" | |
1153 | ||
1154 | fi | |
1155 | ||
37317b3e MT |
1156 | # Start Action |
1157 | print_indent 4 "# Start Action" | |
1158 | case "${START_ACTION}" in | |
1159 | on-demand) | |
1160 | print_indent 4 "start_action = trap" | |
1161 | print_indent 4 "close_action = trap" | |
1162 | ;; | |
1163 | wait) | |
1164 | print_indent 4 "start_action = none" | |
1165 | print_indent 4 "close_action = none" | |
1166 | ;; | |
1167 | always-on|*) | |
1168 | print_indent 4 "start_action = start" | |
1169 | print_indent 4 "close_action = start" | |
1170 | ;; | |
1171 | esac | |
1172 | ||
67baa452 MT |
1173 | |
1174 | print_indent 3 "}" | |
1175 | print_indent 2 "}" | |
1176 | ||
1177 | ||
1178 | print_indent 1 "}" | |
1179 | print_indent 0 "}" | |
1180 | ||
1181 | } | |
1182 | ||
1183 | _ipsec_connection_to_strongswan_secrets() { | |
1184 | local connection="${1}" | |
1185 | ||
1186 | print_indent 0 "secrets {" | |
1187 | ||
1188 | case "${AUTH_MODE}" in | |
1189 | PSK) | |
1190 | print_indent 1 "ike {" | |
1191 | ||
1192 | # Secret | |
1193 | print_indent 2 "secret = ${PSK}" | |
1194 | ||
1195 | # ID | |
1196 | if isset REMOTE_ID; then | |
1197 | print_indent 2 "id = ${REMOTE_ID}" | |
1198 | fi | |
1199 | ||
1200 | print_indent 1 "}" | |
1201 | ;; | |
1202 | esac | |
1203 | ||
1204 | print_indent 0 "}" | |
1205 | } |