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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-config | |
23 | ||
24 | HOOK_MANPAGE="network-config-ipv4-static" | |
25 | ||
26 | HOOK_SETTINGS="HOOK ADDRESS PREFIX GATEWAY" | |
27 | ||
28 | function hook_check() { | |
29 | assert isset ADDRESS | |
30 | assert isinteger PREFIX | |
31 | ||
32 | if [ ${PREFIX} -gt 30 ]; then | |
33 | error "PREFIX is greater than 30." | |
34 | exit ${EXIT_ERROR} | |
35 | fi | |
36 | } | |
37 | ||
38 | function hook_create() { | |
39 | local zone="${1}" | |
40 | assert zone_exists "${zone}" | |
41 | shift | |
42 | ||
43 | local arg | |
44 | while read -r arg; do | |
45 | local key="$(cli_get_key "${arg}")" | |
46 | local val="$(cli_get_val "${arg}")" | |
47 | ||
48 | case "${key}" in | |
49 | address) | |
50 | if ! ipv4_is_valid "${val}"; then | |
51 | error "Invalid IPv4 address: ${val}" | |
52 | exit ${EXIT_CONF_ERROR} | |
53 | fi | |
54 | ||
55 | ADDRESS="${val}" | |
56 | ;; | |
57 | ||
58 | prefix) | |
59 | if ! ipv4_prefix_is_valid "${val}"; then | |
60 | error "Invalid IPv4 prefix: ${val}" | |
61 | exit ${EXIT_CONF_ERROR} | |
62 | fi | |
63 | ||
64 | PREFIX="${val}" | |
65 | ;; | |
66 | ||
67 | gateway) | |
68 | if ! ipv4_is_valid "${val}"; then | |
69 | error "Invalid IPv4 address for gateway: ${val}" | |
70 | exit ${EXIT_CONF_ERROR} | |
71 | fi | |
72 | ||
73 | GATEWAY="${val}" | |
74 | ;; | |
75 | ||
76 | # Compatibility switches | |
77 | netmask) | |
78 | if ! ipv4_netmask_is_valid "${val}"; then | |
79 | error "Invalid netmask: ${val}" | |
80 | exit ${EXIT_CONF_ERROR} | |
81 | fi | |
82 | ||
83 | # The netmask will be converted into a prefix | |
84 | PREFIX="$(ipv4_netmask2prefix ${val})" | |
85 | ;; | |
86 | ||
87 | # Unknown switches | |
88 | *) | |
89 | error "Unhandled argument: ${arg}" | |
90 | exit ${EXIT_CONF_ERROR} | |
91 | ;; | |
92 | esac | |
93 | done <<< "$(args $@)" | |
94 | ||
95 | if ! isset ADDRESS; then | |
96 | error "You need to provide an IPv4 address" | |
97 | exit ${EXIT_CONF_ERROR} | |
98 | fi | |
99 | ||
100 | if ! isset PREFIX; then | |
101 | error "You need to provide an IPv4 prefix" | |
102 | exit ${EXIT_CONF_ERROR} | |
103 | fi | |
104 | ||
105 | if ! isset GATEWAY && zone_is_nonlocal "${zone}"; then | |
106 | warning "You did not configure a gateway for a non-local zone" | |
107 | fi | |
108 | ||
109 | # XXX maybe we can add some hashing to identify a configuration again | |
110 | zone_config_settings_write "${zone}" "${HOOK}.$(uuid)" ${HOOK_SETTINGS} | |
111 | ||
112 | exit ${EXIT_OK} | |
113 | } | |
114 | ||
115 | function hook_up() { | |
116 | local zone=${1} | |
117 | local config=${2} | |
118 | shift 2 | |
119 | ||
120 | if ! device_exists ${zone}; then | |
121 | error "Zone '${zone}' doesn't exist." | |
122 | exit ${EXIT_ERROR} | |
123 | fi | |
124 | ||
125 | zone_config_settings_read "${zone}" "${config}" ${HOOK_SETTINGS} | |
126 | ||
127 | ip_address_add ${zone} ${ADDRESS}/${PREFIX} | |
128 | ||
129 | # Save configuration | |
130 | routing_db_set ${zone} ipv4 type "${HOOK}" | |
131 | routing_db_set ${zone} ipv4 local-ip-address "${ADDRESS}/${PREFIX}" | |
132 | routing_db_set ${zone} ipv4 remote-ip-address "${GATEWAY}" | |
133 | routing_db_set ${zone} ipv4 active 1 | |
134 | ||
135 | routing_update ${zone} ipv4 | |
136 | routing_default_update | |
137 | ||
138 | exit ${EXIT_OK} | |
139 | } | |
140 | ||
141 | function hook_down() { | |
142 | local zone=${1} | |
143 | local config=${2} | |
144 | shift 2 | |
145 | ||
146 | if ! device_exists ${zone}; then | |
147 | error "Zone '${zone}' doesn't exist." | |
148 | exit ${EXIT_ERROR} | |
149 | fi | |
150 | ||
151 | zone_config_settings_read "${zone}" "${config}" ${HOOK_SETTINGS} | |
152 | ||
153 | ip_address_del ${zone} ${ADDRESS}/${PREFIX} | |
154 | ||
155 | # Update routing tables. | |
156 | routing_default_update | |
157 | ||
158 | exit ${EXIT_OK} | |
159 | } | |
160 | ||
161 | function hook_status() { | |
162 | local zone=${1} | |
163 | local config=${2} | |
164 | shift 2 | |
165 | ||
166 | if ! device_exists ${zone}; then | |
167 | error "Zone '${zone}' doesn't exist." | |
168 | exit ${EXIT_ERROR} | |
169 | fi | |
170 | ||
171 | zone_config_settings_read "${zone}" "${config}" ${HOOK_SETTINGS} | |
172 | ||
173 | local status | |
174 | if zone_has_ip ${zone} ${ADDRESS}/${PREFIX}; then | |
175 | status=${MSG_HOOK_UP} | |
176 | else | |
177 | status=${MSG_HOOK_DOWN} | |
178 | fi | |
179 | cli_statusline 3 "${HOOK}" "${status}" | |
180 | ||
181 | cli_print_fmt1 3 "IPv4 address" "${ADDRESS}/${PREFIX}" | |
182 | if [ -n "${GATEWAY}" ]; then | |
183 | cli_print_fmt1 3 "Gateway" "${GATEWAY}" | |
184 | fi | |
185 | cli_space | |
186 | ||
187 | exit ${EXIT_OK} | |
188 | } | |
189 |