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1 | #!/bin/bash |
2 | ############################################################################### | |
3 | # # | |
4 | # IPFire.org - A linux based firewall # | |
5 | # Copyright (C) 2010 Michael Tremer & Christian Schmidt # | |
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 | . /usr/lib/network/header-zone | |
23 | ||
2cab7afb | 24 | SUPPORTED_IP_TUNNEL_MODES="gre vti" |
85de251d | 25 | |
2cab7afb | 26 | HOOK_SETTINGS="HOOK MARK MODE PEER LOCAL_ADDRESS" |
85de251d MT |
27 | |
28 | # Default mode of the tunnel | |
53e764a7 | 29 | DEFAULT_MODE="gre" |
85de251d MT |
30 | |
31 | hook_check_settings() { | |
32 | assert isset MODE && assert isoneof MODE ${SUPPORTED_IP_TUNNEL_MODES} | |
33 | ||
34 | assert isset PEER && assert ip_is_valid "${PEER}" | |
35 | ||
36 | # LOCAL_ADDRESS must be valid and match the protocol of PEER | |
37 | if isset LOCAL_ADDRESS; then | |
38 | assert ip_is_valid "${LOCAL_ADDRESS}" | |
39 | assert ip_protocol_match "${PEER}" "${LOCAL_ADDRESS}" | |
40 | fi | |
2cab7afb MT |
41 | |
42 | # Generate a random mark | |
43 | if ! isset MARK; then | |
44 | MARK="$(( ${RANDOM} & 0xffffffff ))" | |
45 | fi | |
85de251d MT |
46 | } |
47 | ||
48 | hook_parse_cmdline() { | |
49 | while [ $# -gt 0 ]; do | |
50 | case "${1}" in | |
51 | --local-address=*) | |
52 | LOCAL_ADDRESS="$(cli_get_val "${1}")" | |
53 | ;; | |
54 | ||
55 | --mode=*) | |
56 | MODE="$(cli_get_val "${1}")" | |
57 | ||
58 | # MODE must be on the list of supported protocols | |
59 | if ! isoneof MODE ${SUPPORTED_IP_TUNNEL_MODES}; then | |
60 | error "Unsupported mode: ${mode}" | |
61 | return ${EXIT_ERROR} | |
62 | fi | |
63 | ;; | |
64 | ||
65 | --peer=*) | |
66 | PEER="$(cli_get_val "${1}")" | |
67 | ;; | |
68 | ||
69 | *) | |
70 | error "Unknown option: ${1}" | |
71 | exit ${EXIT_ERROR} | |
72 | ;; | |
73 | esac | |
74 | shift | |
75 | done | |
76 | ||
bfaa4f61 MT |
77 | # If PEER is set, it must be a valid IP address |
78 | if isset PEER && ! ip_is_valid "${PEER}"; then | |
85de251d MT |
79 | error "Peer ${PEER} is not a valid IP address" |
80 | return ${EXIT_ERROR} | |
81 | fi | |
82 | ||
83 | # If LOCAL_ADDRESS is set, it must be a valid IP address | |
84 | # of the same protocol than PEER is | |
85 | if isset LOCAL_ADDRESS; then | |
86 | if ! ip_is_valid "${LOCAL_ADDRESS}"; then | |
87 | error "Local address ${LOCAL_ADDRESS} is not a valid IP address" | |
88 | return ${EXIT_ERROR} | |
89 | fi | |
90 | ||
91 | if ! ip_protocol_match "${PEER}" "${LOCAL_ADDRESS}"; then | |
92 | error "Peer and local address are of different IP protocols" | |
93 | return ${EXIT_ERROR} | |
94 | fi | |
95 | fi | |
96 | ||
97 | return ${EXIT_OK} | |
98 | } | |
99 | ||
100 | hook_up() { | |
101 | local zone=${1} | |
102 | assert isset zone | |
103 | ||
104 | # Read configuration | |
105 | if ! zone_settings_read "${zone}"; then | |
106 | log ERROR "Could not read settings from ${zone}" | |
107 | exit ${EXIT_ERROR} | |
108 | fi | |
109 | ||
110 | # Create device if it doesn't exist, yet | |
111 | if ! device_exists "${zone}"; then | |
112 | ip_tunnel_add "${zone}" \ | |
113 | --mode="${MODE}" \ | |
114 | --remote-address="${PEER}" \ | |
2cab7afb MT |
115 | --local-address="${LOCAL_ADDRESS}" \ |
116 | --ikey="${MARK}" \ | |
117 | --okey="${MARK}" | |
85de251d MT |
118 | fi |
119 | ||
120 | # Bring up the device | |
121 | device_set_up "${zone}" | |
122 | ||
123 | # Bring up all configurations | |
124 | zone_configs_up "${zone}" | |
125 | ||
126 | exit ${EXIT_OK} | |
127 | } | |
128 | ||
129 | hook_down() { | |
130 | local zone="${1}" | |
131 | assert isset zone | |
132 | ||
133 | # Stop all the configs. | |
134 | zone_configs_down "${zone}" | |
135 | ||
136 | # Remove the tunnel device | |
137 | ip_tunnel_del "${zone}" || exit $? | |
138 | ||
139 | exit ${EXIT_OK} | |
140 | } | |
141 | ||
142 | hook_status() { | |
143 | local zone=${1} | |
144 | assert isset zone | |
145 | ||
146 | cli_device_headline "${zone}" | |
147 | ||
148 | # Read configuration | |
149 | if ! zone_settings_read "${zone}"; then | |
150 | error "Could not read settings from ${zone}" | |
151 | exit ${EXIT_ERROR} | |
152 | fi | |
153 | ||
bfaa4f61 MT |
154 | cli_print_fmt1 1 "Mode" "$(ip_tunnel_protocol_to_name "${MODE}")" |
155 | ||
156 | if isset PEER || isset LOCAL_ADDRESS; then | |
157 | if isset PEER; then | |
158 | cli_print_fmt1 1 "Peer" "${PEER}" | |
159 | fi | |
160 | ||
161 | if isset LOCAL_ADDRESS; then | |
162 | cli_print_fmt1 1 "Local Address" "${LOCAL_ADDRESS}" | |
163 | fi | |
85de251d MT |
164 | fi |
165 | cli_space | |
166 | ||
167 | cli_headline 2 "Configurations" | |
168 | zone_configs_cmd status "${zone}" | |
169 | cli_space | |
170 | ||
171 | exit ${EXIT_OK} | |
172 | } |