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3eae7bed 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 | ||
22 | VPN_SECURITY_POLICIES_CONFIG_SETTINGS="CIPHER COMPRESSION GROUP_TYPE INTEGRITY KEY_EXCHANGE LIFETIME PFS" | |
23 | VPN_SECURITY_POLICIES_READONLY="system" | |
24 | ||
6fdbda80 MT |
25 | VPN_DEFAULT_SECURITY_POLICY="system" |
26 | ||
b116ad92 | 27 | declare -A VPN_SUPPORTED_CIPHERS=( |
b68fed1f MT |
28 | # 3DES-CBC |
29 | [3DES-CBC]="168 bit 3DES-EDE-CBC" | |
30 | ||
31 | # AES-CBC | |
b116ad92 MT |
32 | [AES256-CBC]="256 bit AES-CBC" |
33 | [AES192-CBC]="192 bit AES-CBC" | |
34 | [AES128-CBC]="128 bit AES-CBC" | |
b68fed1f MT |
35 | |
36 | # AES-CTR | |
37 | [AES256-CTR]="256 bit AES-COUNTER" | |
38 | [AES192-CTR]="192 bit AES-COUNTER" | |
39 | [AES128-CTR]="128 bit AES-COUNTER" | |
40 | ||
41 | # AES-GCM | |
42 | [AES256-GCM128]="256 bit AES-GCM with 128 bit ICV" | |
43 | [AES192-GCM128]="192 bit AES-GCM with 128 bit ICV" | |
44 | [AES128-GCM128]="128 bit AES-GCM with 128 bit ICV" | |
45 | [AES256-GCM96]="256 bit AES-GCM with 96 bit ICV" | |
46 | [AES192-GCM96]="192 bit AES-GCM with 96 bit ICV" | |
47 | [AES128-GCM96]="128 bit AES-GCM with 96 bit ICV" | |
48 | [AES256-GCM64]="256 bit AES-GCM with 64 bit ICV" | |
49 | [AES192-GCM64]="192 bit AES-GCM with 64 bit ICV" | |
50 | [AES128-GCM64]="128 bit AES-GCM with 64 bit ICV" | |
51 | ||
52 | # AES-CCM | |
53 | [AES256-CCM128]="256 bit AES-CCM with 128 bit ICV" | |
54 | [AES192-CCM128]="192 bit AES-CCM with 128 bit ICV" | |
55 | [AES128-CCM128]="128 bit AES-CCM with 128 bit ICV" | |
56 | [AES256-CCM96]="256 bit AES-CCM with 96 bit ICV" | |
57 | [AES192-CCM96]="192 bit AES-CCM with 96 bit ICV" | |
58 | [AES128-CCM96]="128 bit AES-CCM with 96 bit ICV" | |
59 | [AES256-CCM64]="256 bit AES-CCM with 64 bit ICV" | |
60 | [AES192-CCM64]="192 bit AES-CCM with 64 bit ICV" | |
61 | [AES128-CCM64]="128 bit AES-CCM with 64 bit ICV" | |
62 | ||
63 | # CAMELLIA-CBC | |
64 | [CAMELLIA256-CBC]="256 bit CAMELLIA-CBC" | |
65 | [CAMELLIA192-CBC]="192 bit CAMELLIA-CBC" | |
66 | [CAMELLIA128-CBC]="128 bit CAMELLIA-CBC" | |
67 | ||
68 | # CAMELLIA-CTR | |
69 | [CAMELLIA256-CTR]="256 bit CAMELLIA-COUNTER" | |
70 | [CAMELLIA192-CTR]="192 bit CAMELLIA-COUNTER" | |
71 | [CAMELLIA128-CTR]="128 bit CAMELLIA-COUNTER" | |
72 | ||
73 | # CAMELLIA-GCM | |
74 | [CAMELLIA256-GCM128]="256 bit CAMELLIA-GCM with 128 bit ICV" | |
75 | [CAMELLIA192-GCM128]="192 bit CAMELLIA-GCM with 128 bit ICV" | |
76 | [CAMELLIA128-GCM128]="128 bit CAMELLIA-GCM with 128 bit ICV" | |
77 | [CAMELLIA256-GCM96]="256 bit CAMELLIA-GCM with 96 bit ICV" | |
78 | [CAMELLIA192-GCM96]="192 bit CAMELLIA-GCM with 96 bit ICV" | |
79 | [CAMELLIA128-GCM96]="128 bit CAMELLIA-GCM with 96 bit ICV" | |
80 | [CAMELLIA256-GCM64]="256 bit CAMELLIA-GCM with 64 bit ICV" | |
81 | [CAMELLIA192-GCM64]="192 bit CAMELLIA-GCM with 64 bit ICV" | |
82 | [CAMELLIA128-GCM64]="128 bit CAMELLIA-GCM with 64 bit ICV" | |
83 | ||
84 | # CAMELLIA-CCM | |
85 | [CAMELLIA256-CCM128]="256 bit CAMELLIA-CCM with 128 bit ICV" | |
86 | [CAMELLIA192-CCM128]="192 bit CAMELLIA-CCM with 128 bit ICV" | |
87 | [CAMELLIA128-CCM128]="128 bit CAMELLIA-CCM with 128 bit ICV" | |
88 | [CAMELLIA256-CCM96]="256 bit CAMELLIA-CCM with 96 bit ICV" | |
89 | [CAMELLIA192-CCM96]="192 bit CAMELLIA-CCM with 96 bit ICV" | |
90 | [CAMELLIA128-CCM96]="128 bit CAMELLIA-CCM with 96 bit ICV" | |
91 | [CAMELLIA256-CCM64]="256 bit CAMELLIA-CCM with 64 bit ICV" | |
92 | [CAMELLIA192-CCM64]="192 bit CAMELLIA-CCM with 64 bit ICV" | |
93 | [CAMELLIA128-CCM64]="128 bit CAMELLIA-CCM with 64 bit ICV" | |
b116ad92 MT |
94 | ) |
95 | ||
3eae7bed JS |
96 | VPN_SUPPORTED_INTEGRITY="SHA512 SHA256 SHA128" |
97 | VPN_SUPPORTED_GROUP_TYPES="MODP8192 MODP4096" | |
98 | ||
6740c9c5 MT |
99 | # This functions checks if a policy is readonly |
100 | # returns true when yes and false when no | |
3eae7bed | 101 | vpn_security_policies_check_readonly() { |
3eae7bed JS |
102 | if isoneof name ${VPN_SECURITY_POLICIES_READONLY}; then |
103 | return ${EXIT_TRUE} | |
104 | else | |
105 | return ${EXIT_FALSE} | |
106 | fi | |
107 | } | |
108 | ||
6740c9c5 | 109 | # This function writes all values to a via ${name} specificated vpn security policy configuration file |
3eae7bed | 110 | vpn_security_policies_write_config() { |
3eae7bed JS |
111 | assert [ $# -ge 1 ] |
112 | ||
113 | local name="${1}" | |
114 | ||
6740c9c5 | 115 | if ! vpn_security_policy_exists "${name}"; then |
3eae7bed JS |
116 | log ERROR "No such vpn security policy: ${name}" |
117 | return ${EXIT_ERROR} | |
118 | fi | |
119 | ||
6740c9c5 | 120 | if vpn_security_policies_check_readonly "${name}"; then |
3eae7bed JS |
121 | log ERROR "The ${name} vpn security policy cannot be changed." |
122 | return ${EXIT_ERROR} | |
123 | fi | |
124 | ||
6740c9c5 | 125 | local path="$(vpn_security_policies_path "${name}")" |
3eae7bed JS |
126 | if [ ! -w ${path} ]; then |
127 | log ERROR "${path} is not writeable" | |
128 | return ${EXIT_ERROR} | |
129 | fi | |
130 | ||
131 | if ! settings_write "${path}" ${VPN_SECURITY_POLICIES_CONFIG_SETTINGS}; then | |
132 | log ERROR "Could not write configuration settings for vpn security policy ${name}" | |
133 | return ${EXIT_ERROR} | |
134 | fi | |
135 | ||
136 | # TODO everytime we successfully write a config we should call some trigger to take the changes into effect | |
137 | } | |
138 | ||
6740c9c5 | 139 | # This funtion writes the value for one key to a via ${name} specificated vpn security policy configuration file |
3eae7bed | 140 | vpn_security_policies_write_config_key() { |
3eae7bed | 141 | assert [ $# -ge 3 ] |
6740c9c5 | 142 | |
3eae7bed JS |
143 | local name=${1} |
144 | local key=${2} | |
145 | shift 2 | |
6740c9c5 | 146 | |
3eae7bed JS |
147 | local value="$@" |
148 | ||
6740c9c5 | 149 | if ! vpn_security_policy_exists "${name}"; then |
3eae7bed JS |
150 | log ERROR "No such vpn security policy: ${name}" |
151 | return ${EXIT_ERROR} | |
152 | fi | |
153 | ||
154 | log DEBUG "Set '${key}' to new value '${value}' in vpn security policy ${name}" | |
155 | ||
156 | local ${VPN_SECURITY_POLICIES_CONFIG_SETTINGS} | |
157 | ||
158 | # Read the config settings | |
6740c9c5 | 159 | if ! vpn_security_policies_read_config "${name}"; then |
3eae7bed JS |
160 | return ${EXIT_ERROR} |
161 | fi | |
162 | ||
163 | # Set the key to a new value | |
164 | assign "${key}" "${value}" | |
165 | ||
6740c9c5 | 166 | if ! vpn_security_policies_write_config "${name}"; then |
3eae7bed JS |
167 | return ${EXIT_ERROR} |
168 | fi | |
169 | ||
170 | return ${EXIT_TRUE} | |
3eae7bed JS |
171 | } |
172 | ||
6740c9c5 | 173 | # Reads one or more keys out of a settings file or all if no key is provided. |
3eae7bed | 174 | vpn_security_policies_read_config() { |
3eae7bed JS |
175 | assert [ $# -ge 1 ] |
176 | ||
177 | local name="${1}" | |
178 | shift 1 | |
179 | ||
6740c9c5 | 180 | if ! vpn_security_policy_exists "${name}"; then |
3eae7bed JS |
181 | log ERROR "No such vpn security policy: ${name}" |
182 | return ${EXIT_ERROR} | |
183 | fi | |
184 | ||
185 | ||
186 | local args | |
187 | if [ $# -eq 0 ] && [ -n "${VPN_SECURITY_POLICIES_CONFIG_SETTINGS}" ]; then | |
188 | list_append args ${VPN_SECURITY_POLICIES_CONFIG_SETTINGS} | |
189 | else | |
190 | list_append args $@ | |
191 | fi | |
192 | ||
193 | local path="$(vpn_security_policies_path ${name})" | |
194 | ||
195 | if ! settings_read "${path}" ${args}; then | |
196 | log ERROR "Could not read settings for vpn security policy ${name}" | |
197 | return ${EXIT_ERROR} | |
198 | fi | |
199 | } | |
200 | ||
6740c9c5 | 201 | # Returns the path to a the configuration fora given name |
3eae7bed | 202 | vpn_security_policies_path() { |
3eae7bed | 203 | assert [ $# -eq 1 ] |
6740c9c5 | 204 | |
3eae7bed JS |
205 | local name=${1} |
206 | ||
6740c9c5 | 207 | if vpn_security_policies_check_readonly "${name}"; then |
3eae7bed JS |
208 | echo "${NETWORK_SHARE_DIR}/vpn/security-policies/${name}" |
209 | else | |
210 | echo "${NETWORK_CONFIG_DIR}/vpn/security-policies/${name}" | |
211 | fi | |
212 | } | |
213 | ||
6740c9c5 | 214 | # Print the content of a vpn security policy configuration file in a nice way |
3eae7bed | 215 | vpn_security_policies_show() { |
3eae7bed | 216 | assert [ $# -eq 1 ] |
6740c9c5 | 217 | |
3eae7bed JS |
218 | local name=${1} |
219 | ||
220 | local ${VPN_SECURITY_POLICIES_CONFIG_SETTINGS} | |
3eae7bed JS |
221 | if ! vpn_security_policies_read_config ${name}; then |
222 | return ${EXIT_ERROR} | |
223 | fi | |
224 | ||
225 | cli_print_fmt1 0 "Security Policy: ${name}" | |
226 | cli_space | |
227 | ||
228 | # This could be done in a loop but a loop is much more complicated | |
229 | # because we print 'Group Types' but the variable is named 'GROUP_TYPES' | |
230 | cli_print_fmt1 1 "Ciphers:" | |
d21db419 MT |
231 | |
232 | local cipher | |
233 | for cipher in ${CIPHER}; do | |
234 | cli_print_fmt1 2 "${VPN_SUPPORTED_CIPHERS[${cipher}]-${cipher}}" | |
235 | done | |
3eae7bed | 236 | cli_space |
6740c9c5 | 237 | |
3eae7bed JS |
238 | cli_print_fmt1 1 "Integrity:" |
239 | cli_print_fmt1 2 "${INTEGRITY}" | |
240 | cli_space | |
6740c9c5 | 241 | |
3eae7bed JS |
242 | cli_print_fmt1 1 "Group Types:" |
243 | cli_print_fmt1 2 "${GROUP_TYPE}" | |
244 | cli_space | |
245 | ||
246 | cli_print_fmt1 1 "Key Exchange:" "${KEY_EXCHANGE}" | |
6740c9c5 MT |
247 | |
248 | # Key Lifetime | |
3eae7bed JS |
249 | if isinteger LIFETIME && [ ${LIFETIME} -gt 0 ]; then |
250 | cli_print_fmt1 1 "Key Lifetime:" "$(format_time ${LIFETIME})" | |
251 | else | |
252 | log ERROR "The value for Key Lifetime is not a valid integer greater zero." | |
253 | fi | |
6740c9c5 MT |
254 | |
255 | # PFS | |
3eae7bed JS |
256 | if enabled PFS; then |
257 | cli_print_fmt1 1 "Perfect Forward Secrecy:" "enabled" | |
258 | else | |
259 | cli_print_fmt1 1 "Perfect Forward Secrecy:" "disabled" | |
260 | fi | |
261 | cli_space | |
6740c9c5 MT |
262 | |
263 | # Compression | |
3eae7bed JS |
264 | if enabled COMPRESSION; then |
265 | cli_print_fmt1 1 "Compression:" "enabled" | |
266 | else | |
267 | cli_print_fmt1 1 "Compression:" "disabled" | |
268 | fi | |
269 | cli_space | |
270 | } | |
271 | ||
6740c9c5 MT |
272 | # This function checks if a vpn security policy exists |
273 | # Returns True when yes and false when not | |
3eae7bed | 274 | vpn_security_policy_exists() { |
3eae7bed | 275 | assert [ $# -eq 1 ] |
6740c9c5 | 276 | |
3eae7bed JS |
277 | local name=${1} |
278 | ||
6740c9c5 MT |
279 | local path=$(vpn_security_policies_path "${name}") |
280 | ||
281 | [ -f ${path} ] && return ${EXIT_TRUE} || return ${EXIT_FALSE} | |
3eae7bed JS |
282 | } |
283 | ||
284 | ||
6740c9c5 | 285 | # This function parses the parameters for the 'cipher' command |
3eae7bed | 286 | vpn_security_policies_cipher(){ |
3eae7bed JS |
287 | local name=${1} |
288 | shift | |
289 | ||
290 | if [ $# -eq 0 ]; then | |
291 | log ERROR "You must pass at least one value after cipher" | |
292 | return ${EXIT_ERROR} | |
293 | fi | |
294 | ||
295 | local CIPHER | |
3eae7bed JS |
296 | if ! vpn_security_policies_read_config ${name} "CIPHER"; then |
297 | return ${EXIT_ERROR} | |
298 | fi | |
299 | ||
300 | # Remove duplicated entries to proceed the list safely | |
301 | CIPHER="$(list_unique ${CIPHER})" | |
302 | ||
303 | while [ $# -gt 0 ]; do | |
304 | case "${1}" in | |
305 | -*) | |
306 | value=${1#-} | |
307 | # Check if the cipher is in the list of ciphers and | |
308 | # check if the list has after removing this cipher at least one valid value | |
309 | if list_match ${value} ${CIPHER}; then | |
310 | list_remove CIPHER ${value} | |
311 | else | |
312 | # We do not break here because this error does not break the processing of the next maybe valid values. | |
313 | log ERROR "Can not remove ${value} from the list of Ciphers because ${value} is not in the list." | |
314 | fi | |
315 | ;; | |
316 | +*) | |
317 | value=${1#+} | |
318 | # Check if the Ciphers is in the list of supported ciphers. | |
b116ad92 | 319 | if ! isoneof value ${!VPN_SUPPORTED_CIPHERS[@]}; then |
3eae7bed JS |
320 | # We do not break here because this error does not break the processing of the next maybe valid values. |
321 | log ERROR "${value} is not a supported cipher and can thats why not added to the list of ciphers." | |
322 | else | |
323 | if list_match ${value} ${CIPHER}; then | |
324 | log WARNING "${value} is already in the list of ciphers of this policy." | |
325 | else | |
326 | list_append CIPHER ${value} | |
327 | fi | |
328 | fi | |
329 | ;; | |
330 | esac | |
331 | shift | |
332 | done | |
333 | ||
334 | # Check if the list contain at least one valid cipher | |
335 | if [ $(list_length ${CIPHER}) -ge 1 ]; then | |
336 | if ! vpn_security_policies_write_config_key ${name} "CIPHER" ${CIPHER}; then | |
337 | log ERROR "The changes for the vpn security policy ${name} could not be written." | |
338 | fi | |
339 | else | |
340 | log ERROR "After proceding all ciphers the list is empty and thats why no changes are written." | |
341 | return ${EXIT_ERROR} | |
342 | fi | |
343 | } | |
344 | ||
6740c9c5 | 345 | # This function parses the parameters for the 'compression' command |
3eae7bed | 346 | vpn_security_policies_compression(){ |
3eae7bed JS |
347 | local name=${1} |
348 | local value=${2} | |
349 | ||
350 | # Check if we get only one argument after compression <name> | |
351 | if [ ! $# -eq 2 ]; then | |
352 | log ERROR "The number of arguments do not match. Only one argument after compression is allowed." | |
353 | return ${EXIT_ERROR} | |
354 | fi | |
355 | ||
356 | if ! isbool value; then | |
357 | # We suggest only two values to avoid overburding the user. | |
358 | log ERROR "Invalid Argument ${value}" | |
359 | return ${EXIT_ERROR} | |
360 | fi | |
361 | ||
362 | vpn_security_policies_write_config_key "${name}" "COMPRESSION" "${value}" | |
363 | } | |
364 | ||
6740c9c5 | 365 | # This function parses the parameters for the 'group-type' command |
3eae7bed | 366 | vpn_security_policies_group_type(){ |
3eae7bed JS |
367 | local name=${1} |
368 | shift | |
369 | ||
370 | if [ $# -eq 0 ]; then | |
371 | log ERROR "You must pass at least one value after group-type" | |
372 | return ${EXIT_ERROR} | |
373 | fi | |
374 | ||
375 | local GROUP_TYPE | |
3eae7bed JS |
376 | if ! vpn_security_policies_read_config ${name} "GROUP_TYPE"; then |
377 | return ${EXIT_ERROR} | |
378 | fi | |
379 | ||
380 | # Remove duplicated entries to proceed the list safely | |
381 | GROUP_TYPE="$(list_unique ${GROUP_TYPE})" | |
382 | ||
383 | while [ $# -gt 0 ]; do | |
384 | case "${1}" in | |
385 | -*) | |
386 | value=${1#-} | |
387 | # Check if the group type is in the list of group types and | |
388 | # check if the list has after removing this group type at leatst one valid value | |
389 | if list_match ${value} ${GROUP_TYPE}; then | |
390 | list_remove GROUP_TYPE ${value} | |
391 | else | |
392 | # We do not break here because this error does not break the processing of the next maybe valid values. | |
393 | log ERROR "Can not remove ${value} from the list of group types because ${value} is not in the list." | |
394 | fi | |
395 | ;; | |
396 | +*) | |
397 | value=${1#+} | |
398 | # Check if the group type is in the list of supported group types. | |
399 | if ! isoneof value ${VPN_SUPPORTED_GROUP_TYPES}; then | |
400 | # We do not break here because the processing of other maybe valid values are indepent from this error. | |
401 | log ERROR "${value} is not a supported group type and can thats why not added to the list of group types." | |
402 | else | |
403 | if list_match ${value} ${GROUP_TYPE}; then | |
404 | log WARNING "${value} is already in the list of group-types of this policy." | |
405 | else | |
406 | list_append GROUP_TYPE ${value} | |
407 | fi | |
408 | fi | |
409 | ;; | |
410 | esac | |
411 | shift | |
412 | done | |
413 | ||
414 | # Check if the list contain at least one valid group-type | |
415 | if [ $(list_length ${GROUP_TYPE}) -ge 1 ]; then | |
416 | if ! vpn_security_policies_write_config_key ${name} "GROUP_TYPE" ${GROUP_TYPE}; then | |
417 | log ERROR "The changes for the vpn security policy ${name} could not be written." | |
418 | fi | |
419 | else | |
420 | log ERROR "After proceding all group types the list is empty and thats why no changes are written." | |
421 | return ${EXIT_ERROR} | |
422 | fi | |
423 | } | |
6740c9c5 MT |
424 | |
425 | # This function parses the parameters for the 'integrity' command | |
3eae7bed | 426 | vpn_security_policies_integrity(){ |
3eae7bed JS |
427 | local name=${1} |
428 | shift | |
429 | ||
430 | if [ $# -eq 0 ]; then | |
431 | log ERROR "You must pass at least one value after integrity." | |
432 | return ${EXIT_ERROR} | |
433 | fi | |
434 | ||
435 | local INTEGRITY | |
3eae7bed JS |
436 | if ! vpn_security_policies_read_config ${name} "INTEGRITY"; then |
437 | return ${EXIT_ERROR} | |
438 | fi | |
439 | ||
440 | # Remove duplicated entries to proceed the list safely | |
441 | INTEGRITY="$(list_unique ${INTEGRITY})" | |
442 | ||
443 | while [ $# -gt 0 ]; do | |
444 | case "${1}" in | |
445 | -*) | |
446 | value=${1#-} | |
447 | # Check if the integrity hash is in the list of integrity hashes and | |
448 | # check if the list has after removing this integrity hash at least one valid value | |
449 | if list_match ${value} ${INTEGRITY}; then | |
450 | list_remove INTEGRITY ${value} | |
451 | else | |
452 | # We do not break here because the processing of other maybe valid values are indepent from this error. | |
453 | log ERROR "Can not remove ${value} from the list of integrity hashes because ${value} is not in the list." | |
454 | fi | |
455 | ;; | |
456 | +*) | |
457 | value=${1#+} | |
458 | # Check if the Ciphers is in the list of supported integrity hashes. | |
459 | if ! isoneof value ${VPN_SUPPORTED_INTEGRITY}; then | |
460 | # We do not break here because the processing of other maybe valid values are indepent from this error. | |
461 | log ERROR "${value} is not a supported integrity hash and can thats why not added to the list of integrity hashes." | |
462 | else | |
463 | if list_match ${value} ${INTEGRITY}; then | |
464 | log WARNING "${value} is already in the list of integrety hashes of this policy." | |
465 | else | |
466 | list_append INTEGRITY ${value} | |
467 | fi | |
468 | fi | |
469 | ;; | |
470 | esac | |
471 | shift | |
472 | done | |
473 | ||
474 | # Check if the list contain at least one valid group-type | |
475 | if [ $(list_length ${INTEGRITY}) -ge 1 ]; then | |
476 | if ! vpn_security_policies_write_config_key ${name} "INTEGRITY" ${INTEGRITY}; then | |
477 | log ERROR "The changes for the vpn security policy ${name} could not be written." | |
478 | fi | |
479 | else | |
480 | log ERROR "After proceding all integrity hashes the list is empty and thats why no changes are written." | |
481 | return ${EXIT_ERROR} | |
482 | fi | |
3eae7bed JS |
483 | } |
484 | ||
6740c9c5 | 485 | # This function parses the parameters for the 'key-exchange' command |
3eae7bed | 486 | vpn_security_policies_key_exchange() { |
3eae7bed JS |
487 | local name=${1} |
488 | local value=${2} | |
6740c9c5 | 489 | |
3eae7bed JS |
490 | # Check if we get only one argument after key-exchange <name> |
491 | if [ ! $# -eq 2 ]; then | |
492 | log ERROR "The number of arguments do not match. Only argument after key-exchange is allowed." | |
493 | return ${EXIT_ERROR} | |
494 | fi | |
495 | ||
3eae7bed JS |
496 | if ! isoneof value "ikev1" "ikev2" "IKEV1" "IKEV2"; then |
497 | log ERROR "Invalid Argument ${value}" | |
498 | return ${EXIT_ERROR} | |
499 | fi | |
500 | ||
501 | vpn_security_policies_write_config_key "${name}" "KEY_EXCHANGE" "${value,,}" | |
502 | } | |
503 | ||
6740c9c5 | 504 | # This function parses the parameters for the 'lifetime' command. |
3eae7bed | 505 | vpn_security_policies_lifetime(){ |
3eae7bed JS |
506 | local name=${1} |
507 | shift | |
6740c9c5 | 508 | |
3eae7bed JS |
509 | local value=$@ |
510 | ||
511 | # Check if we get only one argument after lifetime <name> | |
512 | if [ ! $# -ge 1 ]; then | |
513 | log ERROR "The number of arguments do not match you must provide at least one integer value or a valid time with the format <hours>h <minutes>m <seconds>s" | |
514 | return ${EXIT_ERROR} | |
515 | fi | |
516 | ||
517 | if ! isinteger value; then | |
518 | value=$(parse_time $@) | |
519 | if [ ! $? -eq 0 ]; then | |
520 | log ERROR "Parsing the passed time was not sucessful please check the passed values." | |
521 | return ${EXIT_ERROR} | |
522 | fi | |
523 | fi | |
524 | ||
525 | if [ ${value} -le 0 ]; then | |
526 | log ERROR "The passed time value must be in the sum greater zero seconds." | |
527 | return ${EXIT_ERROR} | |
528 | fi | |
529 | ||
530 | vpn_security_policies_write_config_key "${name}" "LIFETIME" "${value}" | |
531 | } | |
532 | ||
6740c9c5 | 533 | # This function parses the parameters for the 'pfs' command |
3eae7bed | 534 | vpn_security_policies_pfs(){ |
3eae7bed JS |
535 | local name=${1} |
536 | local value=${2} | |
537 | ||
538 | # Check if we get only one argument after pfs <name> | |
539 | if [ ! $# -eq 2 ]; then | |
540 | log ERROR "The number of arguments do not match. Only argument after pfs is allowed." | |
541 | return ${EXIT_ERROR} | |
542 | fi | |
543 | ||
544 | if [ ! $# -eq 2 ] || ! isbool value; then | |
545 | # We suggest only two values to avoid overburding the user. | |
546 | log ERROR "Invalid Argument ${value}" | |
547 | return ${EXIT_ERROR} | |
548 | fi | |
549 | ||
550 | vpn_security_policies_write_config_key "${name}" "PFS" "${value}" | |
551 | } | |
552 | ||
6740c9c5 MT |
553 | # This function checks if a vpn security policy name is valid |
554 | # Allowed are only A-Za-z0-9 | |
3eae7bed | 555 | vpn_security_policies_check_name() { |
3eae7bed | 556 | assert [ $# -eq 1 ] |
6740c9c5 | 557 | |
3eae7bed | 558 | local name=${1} |
6740c9c5 | 559 | |
3eae7bed JS |
560 | [[ ${name} =~ [^[:alnum:]$] ]] |
561 | } | |
562 | ||
6740c9c5 | 563 | # Function that creates based on the paramters one ore more new vpn security policies |
3eae7bed | 564 | vpn_security_policies_new() { |
58aa0edf MT |
565 | if [ $# -gt 1 ]; then |
566 | error "Too many arguments" | |
3eae7bed JS |
567 | return ${EXIT_ERROR} |
568 | fi | |
569 | ||
58aa0edf MT |
570 | local name="${1}" |
571 | if ! isset name; then | |
572 | error "Please provide a name" | |
573 | return ${EXIT_ERROR} | |
574 | fi | |
3eae7bed | 575 | |
58aa0edf MT |
576 | # Check for duplicates |
577 | if vpn_security_policy_exists "${name}"; then | |
578 | error "The VPN security policy with name ${name} already exists" | |
579 | return ${EXIT_ERROR} | |
580 | fi | |
3eae7bed | 581 | |
58aa0edf MT |
582 | # Check if name is valid |
583 | if vpn_security_policies_check_name "${name}"; then | |
584 | error "'${name}' contains illegal characters" | |
585 | return ${EXIT_ERROR} | |
586 | fi | |
3eae7bed | 587 | |
58aa0edf MT |
588 | # Check if we have a read-only policy with the same name |
589 | if vpn_security_policies_check_readonly "${name}"; then | |
590 | error "The VPN security policy ${name} is read-only" | |
591 | return ${EXIT_ERROR} | |
592 | fi | |
593 | ||
6fdbda80 MT |
594 | # Check if our source policy exists |
595 | if ! vpn_security_policy_exists "${VPN_DEFAULT_SECURITY_POLICY}"; then | |
596 | error "Default VPN Security Policy '${VPN_DEFAULT_SECURITY_POLICY}' does not exist" | |
597 | return ${EXIT_ERROR} | |
598 | fi | |
599 | ||
58aa0edf MT |
600 | log DEBUG "Creating VPN Security Policy ${name}" |
601 | ||
aab75c48 MT |
602 | if copy "$(vpn_security_policies_path "${VPN_DEFAULT_SECURITY_POLICY}")" |
603 | "$(vpn_security_policies_path ${name})"; then | |
58aa0edf MT |
604 | log INFO "VPN Security Policy ${name} successfully created" |
605 | else | |
606 | log ERROR "Could not create VPN Security Policy ${name}" | |
607 | return ${EXIT_ERROR} | |
608 | fi | |
c787fea5 MT |
609 | |
610 | # Show the newly created policy | |
611 | vpn_security_policies_show "${name}" | |
3eae7bed JS |
612 | } |
613 | ||
6740c9c5 | 614 | # Function that deletes based on the passed parameters one ore more vpn security policies |
3eae7bed | 615 | vpn_security_policies_destroy() { |
3eae7bed JS |
616 | local name |
617 | for name in $@; do | |
618 | if ! vpn_security_policy_exists ${name}; then | |
619 | log ERROR "The vpn security policy ${name} does not exist." | |
620 | continue | |
621 | fi | |
622 | ||
623 | if vpn_security_policies_check_readonly ${name}; then | |
624 | log ERROR "The vpn security policy ${name} cannot be deleted." | |
625 | continue | |
626 | fi | |
627 | ||
628 | log DEBUG "Deleting vpn security policy ${name}" | |
629 | settings_remove $(vpn_security_policies_path ${name}) | |
630 | done | |
631 | } |