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7951525a MT |
1 | #!/bin/bash |
2 | ############################################################################### | |
3 | # # | |
4 | # IPFire.org - A linux based firewall # | |
5 | # Copyright (C) 2012 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 | PROC_NET_VLAN="/proc/net/vlan" | |
23 | PROC_NET_VLAN_CONFIG="${PROC_NET_VLAN}/config" | |
24 | ||
25 | VLAN_PORT_INTERFIX="v" | |
26 | ||
1c6a4e30 | 27 | vlan_init() { |
7951525a MT |
28 | ebtables-restore <<EOF |
29 | *filter | |
30 | :INPUT ACCEPT | |
31 | :FORWARD ACCEPT | |
32 | :OUTPUT ACCEPT | |
33 | ||
34 | *broute | |
35 | :BROUTING ACCEPT | |
36 | -A BROUTING -p 802_1Q -j DROP | |
37 | EOF | |
38 | } | |
39 | ||
1c6a4e30 | 40 | vlan_create() { |
d3a0f73d MT |
41 | local device="${1}" |
42 | shift | |
7951525a | 43 | |
d3a0f73d | 44 | assert isset device |
7951525a | 45 | |
d3a0f73d MT |
46 | local address |
47 | local parent | |
48 | local tag | |
49 | ||
50 | # Parse command line arguments | |
51 | while [ $# -gt 0 ]; do | |
52 | case "${1}" in | |
53 | --address=*) | |
54 | address=$(cli_get_val "${1}") | |
55 | ;; | |
56 | --parent=*) | |
57 | parent=$(cli_get_val "${1}") | |
58 | ;; | |
59 | --tag=*) | |
60 | tag=$(cli_get_val "${1}") | |
61 | ;; | |
62 | *) | |
63 | error "Unrecognized argument: ${1}" | |
64 | return ${EXIT_ERROR} | |
65 | ;; | |
66 | esac | |
67 | shift | |
68 | done | |
69 | ||
70 | # Generate a random MAC address if none was passed | |
71 | if ! isset address; then | |
72 | address="$(mac_generate)" | |
73 | fi | |
7951525a | 74 | |
d3a0f73d MT |
75 | # Check if address is valid |
76 | if ! ismac address; then | |
77 | log ERROR "Invalid mac address: ${address}" | |
78 | return ${EXIT_ERROR} | |
7951525a MT |
79 | fi |
80 | ||
d3a0f73d MT |
81 | # Check if a device with the name does already exist |
82 | if device_exists "${device}"; then | |
83 | log ERROR "Device '${device}' already exists" | |
7951525a MT |
84 | return ${EXIT_ERROR} |
85 | fi | |
86 | ||
d3a0f73d MT |
87 | # Check if the parent device exists |
88 | if ! device_exists "${parent}"; then | |
89 | log ERROR "Parent device '${parent}' does not exist" | |
7951525a MT |
90 | return ${EXIT_ERROR} |
91 | fi | |
92 | ||
93 | # Load ebtables stuff. | |
94 | vlan_init | |
95 | ||
d3a0f73d MT |
96 | # Make the command |
97 | local command=( | |
98 | ip link add link "${parent}" name "${device}" | |
99 | address "${address}" type vlan id "${tag}" | |
100 | ) | |
7951525a | 101 | |
d3a0f73d MT |
102 | # Run the command |
103 | if ! cmd_quiet "${command[*]}"; then | |
104 | log ERROR "Could not create VLAN device ${device}: $?" | |
105 | return ${EXIT_ERROR} | |
7951525a MT |
106 | fi |
107 | ||
d3a0f73d | 108 | log DEBUG "Created VLAN device ${device} (parent = ${parent}, id = ${tag})" |
7951525a | 109 | |
d3a0f73d | 110 | return ${EXIT_OK} |
7951525a MT |
111 | } |
112 | ||
1c6a4e30 | 113 | vlan_remove() { |
23ddd376 | 114 | device_delete "$@" |
7951525a MT |
115 | } |
116 | ||
1c6a4e30 | 117 | vlan_get_parent() { |
7951525a MT |
118 | local device=${1} |
119 | assert isset device | |
120 | ||
121 | # Nothing to do, if 8021q module is not loaded. | |
122 | [ -r "${PROC_NET_VLAN_CONFIG}" ] || return ${EXIT_OK} | |
123 | ||
124 | local dev spacer1 id spacer2 parent | |
125 | while read dev spacer1 id spacer2 parent; do | |
126 | [ "${device}" = "${dev}" ] || continue | |
127 | ||
128 | print "${parent}" | |
129 | return ${EXIT_OK} | |
130 | done < ${PROC_NET_VLAN_CONFIG} | |
131 | ||
132 | return ${EXIT_ERROR} | |
133 | } | |
134 | ||
1c6a4e30 | 135 | vlan_get_id() { |
7951525a MT |
136 | local device=${1} |
137 | assert isset device | |
138 | ||
139 | # Nothing to do, if 8021q module is not loaded. | |
140 | [ -r "${PROC_NET_VLAN_CONFIG}" ] || return ${EXIT_OK} | |
141 | ||
142 | local dev spacer1 id spacer2 parent | |
143 | while read dev spacer1 id spacer2 parent; do | |
144 | [ "${device}" = "${dev}" ] || continue | |
145 | ||
146 | print "${id}" | |
147 | return ${EXIT_OK} | |
148 | done < ${PROC_NET_VLAN_CONFIG} | |
149 | ||
150 | return ${EXIT_ERROR} | |
151 | } | |
152 | ||
1c6a4e30 | 153 | vlan_get_by_parent_and_vid() { |
7951525a MT |
154 | local parent=${1} |
155 | assert isset parent | |
156 | ||
157 | local vid=${2} | |
158 | assert isset vid | |
159 | ||
160 | # Nothing to do, if 8021q module is not loaded. | |
161 | [ -r "${PROC_NET_VLAN_CONFIG}" ] || return ${EXIT_OK} | |
162 | ||
163 | local dev spacer1 id spacer2 par | |
164 | while read dev spacer1 id spacer2 par; do | |
165 | [ "${parent}" = "${par}" ] || continue | |
166 | [ "${vid}" = "${id}" ] || continue | |
167 | ||
168 | print "${dev}" | |
169 | return ${EXIT_OK} | |
170 | done < ${PROC_NET_VLAN_CONFIG} | |
171 | ||
172 | return ${EXIT_ERROR} | |
173 | } |