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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 | |
29 | MODE="gre" | |
30 | ||
31 | # The IP address of the tunnel endpoint where to connect to | |
32 | PEER= | |
33 | ||
34 | # The local IP address of the tunnel endpoint | |
35 | LOCAL_ADDRESS= | |
36 | ||
37 | hook_check_settings() { | |
38 | assert isset MODE && assert isoneof MODE ${SUPPORTED_IP_TUNNEL_MODES} | |
39 | ||
40 | assert isset PEER && assert ip_is_valid "${PEER}" | |
41 | ||
42 | # LOCAL_ADDRESS must be valid and match the protocol of PEER | |
43 | if isset LOCAL_ADDRESS; then | |
44 | assert ip_is_valid "${LOCAL_ADDRESS}" | |
45 | assert ip_protocol_match "${PEER}" "${LOCAL_ADDRESS}" | |
46 | fi | |
2cab7afb MT |
47 | |
48 | # Generate a random mark | |
49 | if ! isset MARK; then | |
50 | MARK="$(( ${RANDOM} & 0xffffffff ))" | |
51 | fi | |
85de251d MT |
52 | } |
53 | ||
54 | hook_parse_cmdline() { | |
55 | while [ $# -gt 0 ]; do | |
56 | case "${1}" in | |
57 | --local-address=*) | |
58 | LOCAL_ADDRESS="$(cli_get_val "${1}")" | |
59 | ;; | |
60 | ||
61 | --mode=*) | |
62 | MODE="$(cli_get_val "${1}")" | |
63 | ||
64 | # MODE must be on the list of supported protocols | |
65 | if ! isoneof MODE ${SUPPORTED_IP_TUNNEL_MODES}; then | |
66 | error "Unsupported mode: ${mode}" | |
67 | return ${EXIT_ERROR} | |
68 | fi | |
69 | ;; | |
70 | ||
71 | --peer=*) | |
72 | PEER="$(cli_get_val "${1}")" | |
73 | ;; | |
74 | ||
75 | *) | |
76 | error "Unknown option: ${1}" | |
77 | exit ${EXIT_ERROR} | |
78 | ;; | |
79 | esac | |
80 | shift | |
81 | done | |
82 | ||
bfaa4f61 MT |
83 | # If PEER is set, it must be a valid IP address |
84 | if isset PEER && ! ip_is_valid "${PEER}"; then | |
85de251d MT |
85 | error "Peer ${PEER} is not a valid IP address" |
86 | return ${EXIT_ERROR} | |
87 | fi | |
88 | ||
89 | # If LOCAL_ADDRESS is set, it must be a valid IP address | |
90 | # of the same protocol than PEER is | |
91 | if isset LOCAL_ADDRESS; then | |
92 | if ! ip_is_valid "${LOCAL_ADDRESS}"; then | |
93 | error "Local address ${LOCAL_ADDRESS} is not a valid IP address" | |
94 | return ${EXIT_ERROR} | |
95 | fi | |
96 | ||
97 | if ! ip_protocol_match "${PEER}" "${LOCAL_ADDRESS}"; then | |
98 | error "Peer and local address are of different IP protocols" | |
99 | return ${EXIT_ERROR} | |
100 | fi | |
101 | fi | |
102 | ||
103 | return ${EXIT_OK} | |
104 | } | |
105 | ||
106 | hook_up() { | |
107 | local zone=${1} | |
108 | assert isset zone | |
109 | ||
110 | # Read configuration | |
111 | if ! zone_settings_read "${zone}"; then | |
112 | log ERROR "Could not read settings from ${zone}" | |
113 | exit ${EXIT_ERROR} | |
114 | fi | |
115 | ||
116 | # Create device if it doesn't exist, yet | |
117 | if ! device_exists "${zone}"; then | |
118 | ip_tunnel_add "${zone}" \ | |
119 | --mode="${MODE}" \ | |
120 | --remote-address="${PEER}" \ | |
2cab7afb MT |
121 | --local-address="${LOCAL_ADDRESS}" \ |
122 | --ikey="${MARK}" \ | |
123 | --okey="${MARK}" | |
85de251d MT |
124 | fi |
125 | ||
126 | # Bring up the device | |
127 | device_set_up "${zone}" | |
128 | ||
129 | # Bring up all configurations | |
130 | zone_configs_up "${zone}" | |
131 | ||
132 | exit ${EXIT_OK} | |
133 | } | |
134 | ||
135 | hook_down() { | |
136 | local zone="${1}" | |
137 | assert isset zone | |
138 | ||
139 | # Stop all the configs. | |
140 | zone_configs_down "${zone}" | |
141 | ||
142 | # Remove the tunnel device | |
143 | ip_tunnel_del "${zone}" || exit $? | |
144 | ||
145 | exit ${EXIT_OK} | |
146 | } | |
147 | ||
148 | hook_status() { | |
149 | local zone=${1} | |
150 | assert isset zone | |
151 | ||
152 | cli_device_headline "${zone}" | |
153 | ||
154 | # Read configuration | |
155 | if ! zone_settings_read "${zone}"; then | |
156 | error "Could not read settings from ${zone}" | |
157 | exit ${EXIT_ERROR} | |
158 | fi | |
159 | ||
bfaa4f61 MT |
160 | cli_print_fmt1 1 "Mode" "$(ip_tunnel_protocol_to_name "${MODE}")" |
161 | ||
162 | if isset PEER || isset LOCAL_ADDRESS; then | |
163 | if isset PEER; then | |
164 | cli_print_fmt1 1 "Peer" "${PEER}" | |
165 | fi | |
166 | ||
167 | if isset LOCAL_ADDRESS; then | |
168 | cli_print_fmt1 1 "Local Address" "${LOCAL_ADDRESS}" | |
169 | fi | |
85de251d MT |
170 | fi |
171 | cli_space | |
172 | ||
173 | cli_headline 2 "Configurations" | |
174 | zone_configs_cmd status "${zone}" | |
175 | cli_space | |
176 | ||
177 | exit ${EXIT_OK} | |
178 | } |