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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 | ||
f0e91d26 JS |
296 | ipsec_strongswan_load() { |
297 | if ! cmd swanctl --load-all; then | |
298 | log ERROR "Could not reload strongswan config" | |
299 | return ${EXIT_ERROR} | |
300 | fi | |
301 | } | |
302 | ||
917a1aa0 JS |
303 | # Reloads the connection after config changes |
304 | ipsec_reload() { | |
39d87f20 JS |
305 | local connection=${1} |
306 | ||
307 | if ! ipsec_connection_to_strongswan ${connection}; then | |
308 | log ERROR "Could not generate strongswan config for ${connnection}" | |
309 | return ${EXIT_ERROR} | |
310 | fi | |
311 | ||
f0e91d26 | 312 | ipsec_strongswan_load |
917a1aa0 JS |
313 | } |
314 | ||
315 | # Handle the cli after authentification | |
316 | ipsec_connection_authentication() { | |
317 | if [ ! $# -gt 1 ]; then | |
318 | log ERROR "Not enough arguments" | |
319 | return ${EXIT_ERROR} | |
320 | fi | |
321 | ||
322 | local connection=${1} | |
323 | local cmd=${2} | |
324 | shift 2 | |
325 | ||
326 | case ${cmd} in | |
327 | mode) | |
328 | ipsec_connection_authentication_mode "${connection}" $@ | |
329 | ;; | |
330 | pre-shared-key) | |
331 | ipsec_connection_authentication_psk "${connection}" $@ | |
332 | ;; | |
333 | *) | |
334 | log ERROR "Unrecognized argument: ${cmd}" | |
335 | return ${EXIT_ERROR} | |
336 | ;; | |
337 | esac | |
338 | } | |
339 | ||
340 | # Set the authentification mode | |
341 | ipsec_connection_authentication_mode() { | |
342 | if [ ! $# -eq 2 ]; then | |
343 | log ERROR "Not enough arguments" | |
344 | return ${EXIT_ERROR} | |
345 | fi | |
346 | local connection=${1} | |
347 | local mode=${2} | |
348 | ||
349 | if ! isoneof mode ${IPSEC_VALID_AUTH_MODES}; then | |
350 | log ERROR "Auth mode '${mode}' is invalid" | |
351 | return ${EXIT_ERROR} | |
352 | fi | |
353 | ||
ab589039 | 354 | if ! ipsec_connection_write_config_key "${connection}" "AUTH_MODE" ${mode^^}; then |
917a1aa0 JS |
355 | log ERROR "Could not write configuration settings" |
356 | return ${EXIT_ERROR} | |
357 | fi | |
358 | } | |
359 | ||
360 | # Set the psk | |
361 | ipsec_connection_authentication_psk() { | |
db491d1d | 362 | if [ ! $# -eq 2 ]; then |
917a1aa0 JS |
363 | log ERROR "Not enough arguments" |
364 | return ${EXIT_ERROR} | |
365 | fi | |
1bfc4f56 | 366 | |
917a1aa0 JS |
367 | local connection=${1} |
368 | local psk=${2} | |
369 | ||
1bfc4f56 MT |
370 | local length=${#psk} |
371 | ||
372 | if [ ${length} -lt 4 ]; then | |
373 | error "The PSK must be longer than four characters" | |
374 | return ${EXIT_ERROR} | |
375 | fi | |
376 | ||
377 | if [ ${length} -gt 128 ]; then | |
378 | error "The PSK cannot be longer than 128 characters" | |
379 | return ${EXIT_ERROR} | |
380 | fi | |
917a1aa0 | 381 | |
1bfc4f56 | 382 | if ! ipsec_connection_write_config_key "${connection}" "PSK" "${psk}"; then |
917a1aa0 JS |
383 | log ERROR "Could not write configuration settings" |
384 | return ${EXIT_ERROR} | |
385 | fi | |
386 | ||
387 | return ${EXIT_OK} | |
388 | } | |
389 | ||
3cde31b9 MT |
390 | ipsec_connection_up() { |
391 | local connection="${1}" | |
392 | ||
393 | if ! ipsec_connection_exists "${connection}"; then | |
394 | error "No such VPN IPsec connection: ${connection}" | |
395 | return ${EXIT_ERROR} | |
396 | fi | |
397 | ||
398 | cmd swanctl --initiate --child "${connection}" | |
399 | } | |
400 | ||
401 | ipsec_connection_down() { | |
402 | local connection="${1}" | |
403 | ||
404 | if ! ipsec_connection_exists "${connection}"; then | |
405 | error "No such VPN IPsec connection: ${connection}" | |
406 | return ${EXIT_ERROR} | |
407 | fi | |
408 | ||
409 | cmd swanctl --terminate --ike "${connection}" | |
410 | } | |
bb9fccaf JS |
411 | |
412 | # Handle the cli after authentification | |
413 | ipsec_connection_dpd() { | |
414 | if [ ! $# -gt 1 ]; then | |
415 | log ERROR "Not enough arguments" | |
416 | return ${EXIT_ERROR} | |
417 | fi | |
418 | ||
419 | local connection=${1} | |
420 | local cmd=${2} | |
421 | shift 2 | |
422 | ||
423 | case ${cmd} in | |
424 | action) | |
425 | ipsec_connection_dpd_action "${connection}" $@ | |
426 | ;; | |
427 | delay) | |
428 | ipsec_connection_dpd_delay "${connection}" $@ | |
429 | ;; | |
430 | timeout) | |
431 | ipsec_connection_dpd_timeout "${connection}" $@ | |
432 | ;; | |
433 | *) | |
434 | log ERROR "Unrecognized argument: ${cmd}" | |
435 | return ${EXIT_ERROR} | |
436 | ;; | |
437 | esac | |
438 | } | |
439 | ||
440 | # Set the default dpd action | |
441 | ipsec_connection_dpd_action() { | |
442 | if [ ! $# -eq 2 ]; then | |
443 | log ERROR "Not enough arguments" | |
444 | return ${EXIT_ERROR} | |
445 | fi | |
446 | local connection=${1} | |
447 | local action=${2} | |
448 | ||
449 | if ! isoneof action "restart" "clear"; then | |
450 | log ERROR "dpd action '${action}' is invalid" | |
451 | return ${EXIT_ERROR} | |
452 | fi | |
453 | ||
454 | if ! ipsec_connection_write_config_key "${connection}" "DPD_ACTION" ${action}; then | |
455 | log ERROR "Could not write configuration settings" | |
456 | return ${EXIT_ERROR} | |
457 | fi | |
458 | } | |
459 | ||
460 | # Set the dpd delay | |
461 | ipsec_connection_dpd_delay() { | |
462 | if [ ! $# -ge 2 ]; then | |
463 | log ERROR "Not enough arguments" | |
464 | return ${EXIT_ERROR} | |
465 | fi | |
466 | ||
467 | local connection=${1} | |
468 | shift 1 | |
469 | local value=$@ | |
470 | ||
471 | if ! isinteger value; then | |
472 | value=$(parse_time $@) | |
473 | if [ ! $? -eq 0 ]; then | |
474 | log ERROR "Parsing the passed time was not sucessful please check the passed values." | |
475 | return ${EXIT_ERROR} | |
476 | fi | |
477 | fi | |
478 | ||
479 | if [ ${value} -lt 0 ]; then | |
480 | log ERROR "The passed time value must be in the sum greater or equal zero seconds." | |
481 | return ${EXIT_ERROR} | |
482 | fi | |
483 | ||
484 | if ! ipsec_connection_write_config_key "${connection}" "DPD_DELAY" ${value}; then | |
485 | log ERROR "Could not write configuration settings" | |
486 | return ${EXIT_ERROR} | |
487 | fi | |
488 | ||
489 | return ${EXIT_OK} | |
490 | } | |
491 | ||
492 | # Set the dpd timeout | |
493 | ipsec_connection_dpd_timeout() { | |
494 | if [ ! $# -ge 2 ]; then | |
495 | log ERROR "Not enough arguments" | |
496 | return ${EXIT_ERROR} | |
497 | fi | |
498 | ||
499 | local connection=${1} | |
500 | shift 1 | |
501 | local value=$@ | |
502 | ||
503 | if ! isinteger value; then | |
504 | value=$(parse_time $@) | |
505 | if [ ! $? -eq 0 ]; then | |
506 | log ERROR "Parsing the passed time was not sucessful please check the passed values." | |
507 | return ${EXIT_ERROR} | |
508 | fi | |
509 | fi | |
510 | ||
511 | if [ ${value} -le 0 ]; then | |
512 | log ERROR "The passed time value must be in the sum greater or equal zero seconds." | |
513 | return ${EXIT_ERROR} | |
514 | fi | |
515 | ||
516 | if ! ipsec_connection_write_config_key "${connection}" "DPD_TIMEOUT" ${value}; then | |
517 | log ERROR "Could not write configuration settings" | |
518 | return ${EXIT_ERROR} | |
519 | fi | |
520 | ||
521 | return ${EXIT_OK} | |
522 | } | |
523 | ||
917a1aa0 JS |
524 | # Handle the cli after local |
525 | ipsec_connection_local() { | |
526 | if [ ! $# -ge 2 ]; then | |
527 | log ERROR "Not enough arguments" | |
528 | return ${EXIT_ERROR} | |
529 | fi | |
530 | ||
531 | local connection=${1} | |
532 | local cmd=${2} | |
533 | shift 2 | |
534 | ||
535 | case ${cmd} in | |
bb9fccaf JS |
536 | address) |
537 | ipsec_connection_local_address "${connection}" $@ | |
538 | ;; | |
917a1aa0 JS |
539 | id) |
540 | ipsec_connection_id "${connection}" "LOCAL" $@ | |
541 | ;; | |
542 | prefix) | |
543 | ipsec_connection_prefix "${connection}" "LOCAL" $@ | |
544 | ;; | |
545 | *) | |
546 | log ERROR "Unrecognized argument: ${cmd}" | |
547 | return ${EXIT_ERROR} | |
548 | ;; | |
549 | esac | |
550 | ||
551 | return ${EXIT_OK} | |
552 | } | |
553 | ||
554 | # Set the connection mode | |
555 | ipsec_connection_mode() { | |
5bdbc2ee | 556 | if [ ! $# -eq 2 ]; then |
917a1aa0 JS |
557 | log ERROR "Not enough arguments" |
558 | return ${EXIT_ERROR} | |
559 | fi | |
560 | local connection=${1} | |
561 | local mode=${2} | |
562 | ||
563 | if ! isoneof mode ${IPSEC_VALID_MODES}; then | |
564 | log ERROR "Mode '${mode}' is invalid" | |
565 | return ${EXIT_ERROR} | |
566 | fi | |
567 | ||
568 | if ! ipsec_connection_write_config_key "${connection}" "MODE" ${mode}; then | |
569 | log ERROR "Could not write configuration settings" | |
570 | return ${EXIT_ERROR} | |
571 | fi | |
572 | ||
573 | return ${EXIT_OK} | |
574 | } | |
575 | ||
bb9fccaf JS |
576 | # Set the local address |
577 | ipsec_connection_local_address() { | |
578 | if [ ! $# -eq 2 ]; then | |
579 | log ERROR "Not enough arguments" | |
580 | return ${EXIT_ERROR} | |
581 | fi | |
582 | local connection=${1} | |
583 | local local_address=${2} | |
584 | ||
585 | if ! ipsec_connection_check_peer ${local_address}; then | |
586 | log ERROR "Local address '${local_address}' is invalid" | |
587 | return ${EXIT_ERROR} | |
588 | fi | |
589 | ||
590 | if ! ipsec_connection_write_config_key "${connection}" "LOCAL_ADDRESS" ${local_address}; then | |
591 | log ERROR "Could not write configuration settings" | |
592 | return ${EXIT_ERROR} | |
593 | fi | |
594 | ||
595 | return ${EXIT_OK} | |
596 | } | |
597 | ||
917a1aa0 JS |
598 | # Set the peer to connect to |
599 | ipsec_connection_peer() { | |
0b962a64 | 600 | if [ ! $# -eq 2 ]; then |
917a1aa0 JS |
601 | log ERROR "Not enough arguments" |
602 | return ${EXIT_ERROR} | |
603 | fi | |
604 | local connection=${1} | |
605 | local peer=${2} | |
606 | ||
607 | if ! ipsec_connection_check_peer ${peer}; then | |
608 | log ERROR "Peer '${peer}' is invalid" | |
609 | return ${EXIT_ERROR} | |
610 | fi | |
611 | ||
612 | if ! ipsec_connection_write_config_key "${connection}" "PEER" ${peer}; then | |
613 | log ERROR "Could not write configuration settings" | |
614 | return ${EXIT_ERROR} | |
615 | fi | |
616 | ||
617 | return ${EXIT_OK} | |
618 | } | |
619 | ||
620 | #Set the local or remote id | |
621 | ipsec_connection_id() { | |
622 | if [ ! $# -eq 3 ]; then | |
623 | log ERROR "Not enough arguments" | |
624 | return ${EXIT_ERROR} | |
625 | fi | |
626 | local connection=${1} | |
627 | local type=${2} | |
628 | local id=${3} | |
629 | ||
630 | if ! ipsec_connection_check_id ${id}; then | |
631 | log ERROR "Id '${id}' is invalid" | |
632 | return ${EXIT_ERROR} | |
633 | fi | |
634 | ||
635 | if ! ipsec_connection_write_config_key "${connection}" "${type}_ID" ${id}; then | |
636 | log ERROR "Could not write configuration settings" | |
637 | return ${EXIT_ERROR} | |
638 | fi | |
639 | ||
640 | return ${EXIT_OK} | |
641 | } | |
642 | ||
643 | # Set the local or remote prefix | |
644 | ipsec_connection_prefix() { | |
645 | if [ ! $# -ge 3 ]; then | |
646 | log ERROR "Not enough arguments" | |
647 | return ${EXIT_ERROR} | |
648 | fi | |
649 | local connection=${1} | |
650 | local type=${2} | |
651 | shift 2 | |
652 | ||
653 | local _prefix="${type}_PREFIX" | |
654 | local "${_prefix}" | |
655 | if ! ipsec_connection_read_config "${connection}" "${_prefix}"; then | |
656 | return ${EXIT_ERROR} | |
657 | fi | |
658 | ||
659 | # Remove duplicated entries to proceed the list safely | |
660 | assign "${_prefix}" "$(list_unique ${!_prefix} )" | |
661 | ||
662 | local prefixes_added | |
663 | local prefixes_removed | |
664 | local prefixes_set | |
665 | ||
666 | while [ $# -gt 0 ]; do | |
667 | local arg="${1}" | |
668 | ||
669 | case "${arg}" in | |
670 | +*) | |
671 | list_append prefixes_added "${arg:1}" | |
672 | ;; | |
673 | -*) | |
674 | list_append prefixes_removed "${arg:1}" | |
675 | ;; | |
676 | [A-Fa-f0-9]*) | |
677 | list_append prefixes_set "${arg}" | |
678 | ;; | |
679 | *) | |
680 | error "Invalid argument: ${arg}" | |
681 | return ${EXIT_ERROR} | |
682 | ;; | |
683 | esac | |
684 | shift | |
685 | done | |
686 | ||
687 | # Check if the user is trying a mixed operation | |
688 | if ! list_is_empty prefixes_set && (! list_is_empty prefixes_added || ! list_is_empty prefixes_removed); then | |
689 | error "You cannot reset the prefix list and add or remove prefixes at the same time" | |
690 | return ${EXIT_ERROR} | |
691 | fi | |
692 | ||
693 | # Set new prefix list | |
694 | if ! list_is_empty prefixes_set; then | |
695 | # Check if all prefixes are valid | |
696 | local prefix | |
697 | for prefix in ${prefixes_set}; do | |
698 | if ! ip_net_is_valid ${prefix}; then | |
699 | error "Unsupported prefix: ${prefix}" | |
700 | return ${EXIT_ERROR} | |
701 | fi | |
702 | done | |
703 | ||
704 | assign "${_prefix}" "${prefixes_set}" | |
705 | ||
706 | # Perform incremental updates | |
707 | else | |
708 | local prefix | |
709 | ||
710 | # Perform all removals | |
711 | for prefix in ${prefixes_removed}; do | |
712 | if ! list_remove "${_prefix}" ${prefix}; then | |
713 | warning "${prefix} was not on the list and could not be removed" | |
714 | fi | |
715 | done | |
716 | ||
717 | ||
718 | for prefix in ${prefixes_added}; do | |
719 | if ip_net_is_valid ${prefix}; then | |
720 | if ! list_append_unique "${_prefix}" ${prefix}; then | |
721 | warning "${prefix} is already on the prefix list" | |
722 | fi | |
723 | else | |
f03f29b7 | 724 | warning "${prefix} is not a valid IP network and could not be added" |
917a1aa0 JS |
725 | fi |
726 | done | |
727 | fi | |
728 | ||
729 | # Check if the list contain at least one valid prefix | |
730 | if list_is_empty ${_prefix}; then | |
731 | error "Cannot save an empty prefix list" | |
732 | return ${EXIT_ERROR} | |
733 | fi | |
734 | ||
735 | # Save everything | |
736 | if ! ipsec_connection_write_config_key "${connection}" "${_prefix}" ${!_prefix}; then | |
737 | log ERROR "Could not write configuration settings" | |
738 | fi | |
739 | ||
740 | return ${EXIT_OK} | |
741 | } | |
742 | ||
743 | # Handle the cli after remote | |
744 | ipsec_connection_remote() { | |
745 | if [ ! $# -ge 2 ]; then | |
746 | log ERROR "Not enough arguments" | |
747 | return ${EXIT_ERROR} | |
748 | fi | |
749 | ||
750 | local connection=${1} | |
751 | local cmd=${2} | |
752 | shift 2 | |
753 | ||
754 | case ${cmd} in | |
755 | id) | |
756 | ipsec_connection_id "${connection}" "REMOTE" $@ | |
757 | ;; | |
758 | ||
759 | prefix) | |
760 | ipsec_connection_prefix "${connection}" "REMOTE" $@ | |
761 | ;; | |
762 | *) | |
763 | log ERROR "Unrecognized argument: ${cmd}" | |
764 | return ${EXIT_ERROR} | |
765 | ;; | |
766 | esac | |
767 | ||
768 | return ${EXIT_OK} | |
769 | } | |
770 | ||
771 | # Set the inactivity timeout | |
772 | ipsec_connection_inactivity_timeout() { | |
773 | if [ ! $# -ge 2 ]; then | |
774 | log ERROR "Not enough arguments" | |
775 | return ${EXIT_ERROR} | |
776 | fi | |
777 | ||
778 | local connection=${1} | |
779 | shift 1 | |
780 | local value=$@ | |
781 | ||
782 | if ! isinteger value; then | |
783 | value=$(parse_time $@) | |
784 | if [ ! $? -eq 0 ]; then | |
785 | log ERROR "Parsing the passed time was not sucessful please check the passed values." | |
786 | return ${EXIT_ERROR} | |
787 | fi | |
788 | fi | |
789 | ||
790 | if [ ${value} -le 0 ]; then | |
791 | log ERROR "The passed time value must be in the sum greater zero seconds." | |
792 | return ${EXIT_ERROR} | |
793 | fi | |
794 | ||
795 | if ! ipsec_connection_write_config_key "${connection}" "INACTIVITY_TIMEOUT" ${value}; then | |
796 | log ERROR "Could not write configuration settings" | |
797 | return ${EXIT_ERROR} | |
798 | fi | |
799 | ||
800 | return ${EXIT_OK} | |
801 | } | |
802 | ||
bb9fccaf JS |
803 | # Set the default start action |
804 | ipsec_connection_start_action() { | |
805 | if [ ! $# -eq 2 ]; then | |
806 | log ERROR "Not enough arguments" | |
807 | return ${EXIT_ERROR} | |
808 | fi | |
809 | local connection=${1} | |
810 | local action=${2} | |
811 | ||
812 | if ! isoneof action "on-demand" "always-on"; then | |
813 | log ERROR "Start action '${action}' is invalid" | |
814 | return ${EXIT_ERROR} | |
815 | fi | |
816 | ||
817 | if ! ipsec_connection_write_config_key "${connection}" "START_ACTION" ${action}; then | |
818 | log ERROR "Could not write configuration settings" | |
819 | return ${EXIT_ERROR} | |
820 | fi | |
821 | } | |
917a1aa0 JS |
822 | |
823 | # Set the security policy to use | |
824 | ipsec_connection_security_policy() { | |
825 | if [ ! $# -eq 2 ]; then | |
826 | log ERROR "Not enough arguments" | |
827 | return ${EXIT_ERROR} | |
828 | fi | |
829 | local connection=${1} | |
830 | local security_policy=${2} | |
831 | ||
832 | if ! vpn_security_policy_exists ${security_policy}; then | |
833 | log ERROR "No such vpn security policy '${security_policy}'" | |
834 | return ${EXIT_ERROR} | |
835 | fi | |
836 | ||
837 | if ! ipsec_connection_write_config_key "${connection}" "SECURITY_POLICY" ${security_policy}; then | |
838 | log ERROR "Could not write configuration settings" | |
839 | return ${EXIT_ERROR} | |
840 | fi | |
841 | } | |
842 | ||
843 | # Check if a id is valid | |
844 | ipsec_connection_check_id() { | |
845 | assert [ $# -eq 1 ] | |
846 | local id=${1} | |
847 | ||
848 | if [[ ${id} =~ ^@[[:alnum:]]+$ ]] || ip_is_valid ${id}; then | |
849 | return ${EXIT_TRUE} | |
850 | else | |
851 | return ${EXIT_FALSE} | |
852 | fi | |
853 | } | |
854 | ||
855 | # Checks if a peer is valid | |
856 | ipsec_connection_check_peer() { | |
857 | assert [ $# -eq 1 ] | |
858 | local peer=${1} | |
859 | ||
860 | # TODO Accept also FQDNs | |
861 | if ip_is_valid ${peer}; then | |
862 | return ${EXIT_TRUE} | |
863 | else | |
864 | return ${EXIT_FALSE} | |
865 | fi | |
866 | } | |
867 | ||
868 | # This function checks if a VPN IPsec connection name is valid | |
869 | # Allowed are only A-Za-z0-9 | |
870 | ipsec_connection_check_name() { | |
871 | assert [ $# -eq 1 ] | |
872 | ||
873 | local connection=${1} | |
874 | ||
875 | [[ "${connection}" =~ [^[:alnum:]$] ]] | |
876 | } | |
877 | ||
878 | # Function that creates one VPN IPsec connection | |
879 | ipsec_connection_new() { | |
880 | if [ $# -gt 1 ]; then | |
881 | error "Too many arguments" | |
882 | return ${EXIT_ERROR} | |
883 | fi | |
884 | ||
885 | local connection="${1}" | |
886 | if ! isset connection; then | |
887 | error "Please provide a connection name" | |
888 | return ${EXIT_ERROR} | |
889 | fi | |
890 | ||
891 | # Check for duplicates | |
892 | if ipsec_connection_exists "${connection}"; then | |
893 | error "The VPN IPsec connection ${connection} already exists" | |
894 | return ${EXIT_ERROR} | |
895 | fi | |
896 | ||
897 | # Check if the name of the connection is valid | |
898 | if ipsec_connection_check_name "${connection}"; then | |
899 | error "'${connection}' contains illegal characters" | |
900 | return ${EXIT_ERROR} | |
901 | fi | |
902 | ||
903 | log DEBUG "Creating VPN IPsec connection ${connection}" | |
904 | ||
cf8685a1 | 905 | if ! mkdir -p "${NETWORK_IPSEC_CONNS_DIR}/${connection}"; then |
917a1aa0 JS |
906 | log ERROR "Could not create config directory for ${connection}" |
907 | return ${EXIT_ERROR} | |
908 | fi | |
909 | ||
910 | local ${IPSEC_CONNECTION_CONFIG_SETTINGS} | |
911 | ||
917a1aa0 | 912 | AUTH_MODE=${IPSEC_DEFAULT_AUTH_MODE} |
bb9fccaf JS |
913 | DPD_ACTION=${IPSEC_DEFAULT_DPD_ACTION} |
914 | DPD_DELAY=${IPSEC_DEFAULT_DPD_DELAY} | |
915 | DPD_TIMEOUT=${IPSEC_DEFAULT_DPD_TIMEOUT} | |
916 | MODE=${IPSEC_DEFAULT_MODE} | |
917 | START_ACTION=${IPSEC_DEFAULT_START_ACTION} | |
918 | ||
917a1aa0 JS |
919 | INACTIVITY_TIMEOUT=${IPSEC_DEFAULT_INACTIVITY_TIMEOUT} |
920 | SECURITY_POLICY=${IPSEC_DEFAULT_SECURITY_POLICY} | |
921 | ||
922 | if ! ipsec_connection_write_config "${connection}"; then | |
923 | log ERROR "Could not write new config file" | |
924 | return ${EXIT_ERROR} | |
925 | fi | |
926 | } | |
927 | ||
928 | # Function that deletes based on the passed parameters one ore more vpn security policies | |
929 | ipsec_connection_destroy() { | |
930 | local connection | |
931 | for connection in $@; do | |
932 | if ! ipsec_connection_exists "${connection}"; then | |
933 | log ERROR "The VPN IPsec connection ${connection} does not exist." | |
934 | continue | |
935 | fi | |
936 | ||
937 | log DEBUG "Deleting VPN IPsec connection ${connection}" | |
cf8685a1 | 938 | if ! rm -rf "${NETWORK_IPSEC_CONNS_DIR}/${connection}"; then |
917a1aa0 JS |
939 | log ERROR "Deleting the VPN IPsec connection ${connection} was not sucessful" |
940 | return ${EXIT_ERROR} | |
941 | fi | |
942 | done | |
943 | } | |
d6c852b8 JS |
944 | |
945 | # List all ipsec connections | |
946 | ipsec_list_connections() { | |
947 | local connection | |
948 | for connection in ${NETWORK_IPSEC_CONNS_DIR}/*; do | |
949 | [ -d ${connection} ] || continue | |
950 | basename ${connection} | |
951 | done | |
952 | } | |
67baa452 MT |
953 | |
954 | ipsec_connection_to_strongswan() { | |
955 | local connection="${1}" | |
956 | ||
957 | # Read the config settings | |
958 | local ${IPSEC_CONNECTION_CONFIG_SETTINGS} | |
959 | if ! ipsec_connection_read_config "${connection}"; then | |
960 | error "Could not read the connection ${connection}" | |
961 | return ${EXIT_ERROR} | |
962 | fi | |
963 | ||
964 | local path="${NETWORK_IPSEC_SWANCTL_CONNECTIONS_DIR}/${connection}.conf" | |
965 | ||
966 | ( | |
967 | # Write the connection section | |
968 | _ipsec_connection_to_strongswan_connection "${connection}" | |
969 | ||
970 | # Write the secrets section | |
971 | _ipsec_connection_to_strongswan_secrets "${connection}" | |
972 | ||
973 | ) > ${path} | |
974 | } | |
975 | ||
976 | _ipsec_connection_to_strongswan_connection() { | |
977 | local connection="${1}" | |
978 | ||
979 | # Read the security policy | |
980 | local ${VPN_SECURITY_POLICIES_CONFIG_SETTINGS} | |
981 | if ! vpn_security_policies_read_config "${SECURITY_POLICY}"; then | |
982 | return ${EXIT_ERROR} | |
983 | fi | |
984 | ||
4e271faa MT |
985 | # Is DPD enabled? |
986 | local dpd="false" | |
987 | if isset DPD_DELAY && isinteger DPD_DELAY && [ ${DPD_DELAY} -gt 0 ]; then | |
988 | dpd="true" | |
989 | fi | |
990 | ||
67baa452 MT |
991 | print_indent 0 "connections {" |
992 | print_indent 1 "${connection} {" | |
993 | ||
994 | # IKE Version | |
995 | print_indent 2 "# IKE Version" | |
996 | case "${KEY_EXCHANGE^^}" in | |
997 | IKEV1) | |
998 | print_indent 2 "version = 1" | |
999 | ;; | |
1000 | ||
1001 | # Fall back to IKEv2 for any random values | |
1002 | IKEV2|*) | |
1003 | print_indent 2 "version = 2" | |
1004 | ;; | |
1005 | esac | |
1006 | print # empty line | |
1007 | ||
3e8ad776 MT |
1008 | # Local Address |
1009 | print_indent 2 "# Local Address" | |
1010 | if isset LOCAL_ADDRESS; then | |
1011 | print_indent 2 "local_addrs = ${LOCAL_ADDRESS}" | |
1012 | else | |
1013 | print_indent 2 "local_addrs = %any" | |
1014 | fi | |
1015 | ||
67baa452 MT |
1016 | |
1017 | # Remote Address | |
1018 | print_indent 2 "# Remote Address" | |
1019 | if isset PEER; then | |
1020 | print_indent 2 "remote_addrs = ${PEER}" | |
1021 | else | |
1022 | print_indent 2 "remote_addrs = %any" | |
1023 | fi | |
1024 | ||
1025 | ||
1026 | # IKE Proposals | |
1027 | print_indent 2 "# IKE Proposals" | |
e3ffacf7 | 1028 | print_indent 2 "proposals = $(vpn_security_policies_make_ike_proposal ${SECURITY_POLICY})" |
67baa452 MT |
1029 | |
1030 | ||
117278c3 | 1031 | # DPD Settings |
4e271faa | 1032 | if enabled dpd; then |
117278c3 | 1033 | print_indent 2 "# Dead Peer Detection" |
117278c3 MT |
1034 | print_indent 2 "dpd_delay = ${DPD_DELAY}" |
1035 | ||
1036 | if isset DPD_TIMEOUT; then | |
1037 | print_indent 2 "dpd_timeout = ${DPD_TIMEOUT}" | |
1038 | fi | |
1039 | ||
1040 | ||
1041 | fi | |
67baa452 MT |
1042 | |
1043 | # Fragmentation | |
1044 | print_indent 2 "# Fragmentation" | |
1045 | print_indent 2 "fragmentation = yes" | |
1046 | ||
1047 | ||
1048 | # Local | |
1049 | print_indent 2 "local {" | |
1050 | ||
1051 | # Local ID | |
1052 | if isset LOCAL_ID; then | |
1053 | print_indent 3 "id = ${LOCAL_ID}" | |
1054 | fi | |
1055 | ||
1056 | # Authentication | |
1057 | case "${AUTH_MODE}" in | |
1058 | PSK) | |
1059 | print_indent 3 "auth = psk" | |
1060 | ;; | |
1061 | esac | |
1062 | ||
1063 | print_indent 2 "}" | |
1064 | ||
1065 | ||
1066 | # Remote | |
1067 | print_indent 2 "remote {" | |
1068 | ||
1069 | # Remote ID | |
1070 | if isset REMOTE_ID; then | |
1071 | print_indent 3 "id = ${REMOTE_ID}" | |
1072 | fi | |
1073 | ||
1074 | # Authentication | |
1075 | case "${AUTH_MODE}" in | |
1076 | PSK) | |
1077 | print_indent 3 "auth = psk" | |
1078 | ;; | |
1079 | esac | |
1080 | ||
1081 | print_indent 2 "}" | |
1082 | ||
1083 | ||
1084 | # Children | |
1085 | ||
1086 | print_indent 2 "children {" | |
1087 | print_indent 3 "${connection} {" | |
1088 | ||
1089 | print_indent 4 "# ESP Proposals" | |
e3d8f3f6 | 1090 | print_indent 4 "esp_proposals = $(vpn_security_policies_make_esp_proposal ${SECURITY_POLICY})" |
67baa452 MT |
1091 | |
1092 | ||
1093 | # Traffic Selectors | |
1094 | ||
95835d23 MT |
1095 | case "${MODE}" in |
1096 | gre-*) | |
1097 | print_indent 4 "local_ts = dynamic[gre]" | |
1098 | print_indent 4 "remote_ts = dynamic[gre]" | |
1099 | ;; | |
1100 | *) | |
1101 | # Local Prefixes | |
1102 | if isset LOCAL_PREFIX; then | |
1103 | print_indent 4 "local_ts = $(list_join LOCAL_PREFIX ,)" | |
1104 | else | |
1105 | print_indent 4 "local_ts = dynamic" | |
1106 | fi | |
67baa452 | 1107 | |
95835d23 MT |
1108 | # Remote Prefixes |
1109 | if isset REMOTE_PREFIX; then | |
1110 | print_indent 4 "remote_ts = $(list_join REMOTE_PREFIX ,)" | |
1111 | else | |
1112 | print_indent 4 "remote_ts = dynamic" | |
1113 | fi | |
1114 | ;; | |
1115 | esac | |
67baa452 MT |
1116 | |
1117 | ||
82fac748 MT |
1118 | # Netfilter Marks |
1119 | print_indent 4 "# Netfilter Marks" | |
1120 | print_indent 4 "mark_in = %unique" | |
1121 | print_indent 4 "mark_out = %unique" | |
1122 | ||
1123 | ||
4e271faa MT |
1124 | # Dead Peer Detection |
1125 | if enabled dpd; then | |
1126 | print_indent 4 "# Dead Peer Detection" | |
1127 | print_indent 4 "dpd_action = ${DPD_ACTION}" | |
1128 | ||
1129 | fi | |
1130 | ||
67baa452 MT |
1131 | # Rekeying |
1132 | if isset LIFETIME; then | |
1133 | print_indent 4 "# Rekey Time" | |
1134 | print_indent 4 "rekey_time = ${LIFETIME}" | |
1135 | ||
1136 | fi | |
1137 | ||
1138 | # Updown Script | |
1139 | print_indent 4 "updown = ${NETWORK_HELPERS_DIR}/ipsec-updown" | |
1140 | ||
1141 | ||
1142 | # Mode | |
1143 | print_indent 4 "# Mode" | |
1144 | case "${MODE}" in | |
1145 | gre-transport) | |
1146 | print_indent 4 "mode = transport" | |
1147 | ;; | |
1148 | tunnel|vti|*) | |
1149 | print_indent 4 "mode = tunnel" | |
1150 | ;; | |
1151 | esac | |
1152 | ||
1153 | ||
1154 | # Compression | |
1155 | print_indent 4 "# Compression" | |
1156 | if enabled COMPRESSION; then | |
1157 | print_indent 4 "ipcomp = yes" | |
1158 | else | |
1159 | print_indent 4 "ipcomp = no" | |
1160 | fi | |
1161 | ||
1162 | ||
1163 | # Inactivity Timeout | |
1164 | if isset INACTIVITY_TIMEOUT; then | |
1165 | print_indent 4 "# Inactivity Timeout" | |
1166 | print_indent 4 "inactivity = ${INACTIVITY_TIMEOUT}" | |
1167 | ||
1168 | fi | |
1169 | ||
37317b3e MT |
1170 | # Start Action |
1171 | print_indent 4 "# Start Action" | |
1172 | case "${START_ACTION}" in | |
1173 | on-demand) | |
1174 | print_indent 4 "start_action = trap" | |
1175 | print_indent 4 "close_action = trap" | |
1176 | ;; | |
1177 | wait) | |
1178 | print_indent 4 "start_action = none" | |
1179 | print_indent 4 "close_action = none" | |
1180 | ;; | |
1181 | always-on|*) | |
1182 | print_indent 4 "start_action = start" | |
1183 | print_indent 4 "close_action = start" | |
1184 | ;; | |
1185 | esac | |
1186 | ||
67baa452 MT |
1187 | |
1188 | print_indent 3 "}" | |
1189 | print_indent 2 "}" | |
1190 | ||
1191 | ||
1192 | print_indent 1 "}" | |
1193 | print_indent 0 "}" | |
1194 | ||
1195 | } | |
1196 | ||
1197 | _ipsec_connection_to_strongswan_secrets() { | |
1198 | local connection="${1}" | |
1199 | ||
1200 | print_indent 0 "secrets {" | |
1201 | ||
1202 | case "${AUTH_MODE}" in | |
1203 | PSK) | |
1204 | print_indent 1 "ike {" | |
1205 | ||
1206 | # Secret | |
1207 | print_indent 2 "secret = ${PSK}" | |
1208 | ||
1209 | # ID | |
1210 | if isset REMOTE_ID; then | |
1211 | print_indent 2 "id = ${REMOTE_ID}" | |
1212 | fi | |
1213 | ||
1214 | print_indent 1 "}" | |
1215 | ;; | |
1216 | esac | |
1217 | ||
1218 | print_indent 0 "}" | |
1219 | } |