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a6f80f0e | 1 | #!/bin/sh -e |
2 | ### BEGIN INIT INFO | |
3 | # Provides: networking ifupdown | |
4 | # Required-Start: mountkernfs $local_fs urandom | |
5 | # Required-Stop: $local_fs | |
6 | # Default-Start: S | |
7 | # Default-Stop: 0 6 | |
8 | # Short-Description: Raise network interfaces. | |
9 | # Description: Prepare /run/network directory, ifstate file and raise network interfaces, or take them down. | |
10 | ### END INIT INFO | |
11 | ||
12 | PATH="/sbin:/bin" | |
13 | RUN_DIR="/run/network" | |
14 | IFSTATE="$RUN_DIR/ifstate" | |
15 | ||
16 | [ -x /sbin/ifup ] || exit 0 | |
17 | [ -x /sbin/ifdown ] || exit 0 | |
18 | ||
19 | . /lib/lsb/init-functions | |
20 | ||
21 | CONFIGURE_INTERFACES=yes | |
22 | EXCLUDE_INTERFACES= | |
23 | VERBOSE=no | |
24 | ||
25 | [ -f /etc/default/networking ] && . /etc/default/networking | |
26 | ||
27 | [ "$VERBOSE" = yes ] && verbose=-v | |
28 | ||
29 | process_exclusions() { | |
30 | set -- $EXCLUDE_INTERFACES | |
31 | exclusions="" | |
32 | for d | |
33 | do | |
34 | exclusions="-X $d $exclusions" | |
35 | done | |
36 | echo $exclusions | |
37 | } | |
38 | ||
39 | process_options() { | |
40 | [ -e /etc/network/options ] || return 0 | |
41 | log_warning_msg "/etc/network/options still exists and it will be IGNORED! Please use /etc/sysctl.conf instead." | |
42 | } | |
43 | ||
44 | check_ifstate() { | |
45 | if [ ! -d "$RUN_DIR" ] ; then | |
46 | if ! mkdir -p "$RUN_DIR" ; then | |
47 | log_failure_msg "can't create $RUN_DIR" | |
48 | exit 1 | |
49 | fi | |
50 | fi | |
51 | if [ ! -r "$IFSTATE" ] ; then | |
52 | if ! :> "$IFSTATE" ; then | |
53 | log_failure_msg "can't initialise $IFSTATE" | |
54 | exit 1 | |
55 | fi | |
56 | fi | |
57 | } | |
58 | ||
59 | check_network_file_systems() { | |
60 | [ -e /proc/mounts ] || return 0 | |
61 | ||
62 | if [ -e /etc/iscsi/iscsi.initramfs ]; then | |
63 | log_warning_msg "not deconfiguring network interfaces: iSCSI root is mounted." | |
64 | exit 0 | |
65 | fi | |
66 | ||
67 | while read DEV MTPT FSTYPE REST; do | |
68 | case $DEV in | |
69 | /dev/nbd*|/dev/nd[a-z]*|/dev/etherd/e*) | |
70 | log_warning_msg "not deconfiguring network interfaces: network devices still mounted." | |
71 | exit 0 | |
72 | ;; | |
73 | esac | |
74 | case $FSTYPE in | |
75 | nfs|nfs4|smbfs|ncp|ncpfs|cifs|coda|ocfs2|gfs|pvfs|pvfs2|fuse.httpfs|fuse.curlftpfs) | |
76 | log_warning_msg "not deconfiguring network interfaces: network file systems still mounted." | |
77 | exit 0 | |
78 | ;; | |
79 | esac | |
80 | done < /proc/mounts | |
81 | } | |
82 | ||
83 | check_network_swap() { | |
84 | [ -e /proc/swaps ] || return 0 | |
85 | ||
86 | while read DEV MTPT FSTYPE REST; do | |
87 | case $DEV in | |
88 | /dev/nbd*|/dev/nd[a-z]*|/dev/etherd/e*) | |
89 | log_warning_msg "not deconfiguring network interfaces: network swap still mounted." | |
90 | exit 0 | |
91 | ;; | |
92 | esac | |
93 | done < /proc/swaps | |
94 | } | |
95 | ||
96 | ifup_hotplug () { | |
97 | if [ -d /sys/class/net ] | |
98 | then | |
99 | ifaces=$(for iface in $(ifquery --list --allow=hotplug) | |
100 | do | |
101 | link=${iface##:*} | |
102 | link=${link##.*} | |
103 | if [ -e "/sys/class/net/$link" ] && [ "$(cat /sys/class/net/$link/operstate)" = up ] | |
104 | then | |
105 | echo "$iface" | |
106 | fi | |
107 | done) | |
108 | if [ -n "$ifaces" ] | |
109 | then | |
110 | ifup $ifaces "$@" || true | |
111 | fi | |
112 | fi | |
113 | } | |
114 | ||
115 | case "$1" in | |
116 | start) | |
117 | if init_is_upstart; then | |
118 | exit 1 | |
119 | fi | |
120 | process_options | |
121 | check_ifstate | |
122 | ||
123 | if [ "$CONFIGURE_INTERFACES" = no ] | |
124 | then | |
125 | log_action_msg "Not configuring network interfaces, see /etc/default/networking" | |
126 | exit 0 | |
127 | fi | |
128 | set -f | |
129 | exclusions=$(process_exclusions) | |
130 | log_action_begin_msg "Configuring network interfaces" | |
131 | if ifup -a $exclusions $verbose && ifup_hotplug $exclusions $verbose | |
132 | then | |
133 | log_action_end_msg $? | |
134 | else | |
135 | log_action_end_msg $? | |
136 | fi | |
137 | ;; | |
138 | ||
139 | stop) | |
140 | if init_is_upstart; then | |
141 | exit 0 | |
142 | fi | |
143 | check_network_file_systems | |
144 | check_network_swap | |
145 | ||
146 | log_action_begin_msg "Deconfiguring network interfaces" | |
147 | if ifdown -a --exclude=lo $verbose; then | |
148 | log_action_end_msg $? | |
149 | else | |
150 | log_action_end_msg $? | |
151 | fi | |
152 | ;; | |
153 | ||
154 | reload) | |
155 | process_options | |
156 | ||
157 | log_action_begin_msg "Reloading network interfaces configuration" | |
158 | state=$(cat /run/network/ifstate) | |
159 | ifdown -a --exclude=lo $verbose || true | |
160 | if ifup --exclude=lo $state $verbose ; then | |
161 | log_action_end_msg $? | |
162 | else | |
163 | log_action_end_msg $? | |
164 | fi | |
165 | ;; | |
166 | ||
167 | force-reload|restart) | |
168 | if init_is_upstart; then | |
169 | exit 1 | |
170 | fi | |
171 | process_options | |
172 | ||
173 | log_warning_msg "Running $0 $1 is deprecated because it may not re-enable some interfaces" | |
174 | log_action_begin_msg "Reconfiguring network interfaces" | |
175 | ifdown -a --exclude=lo $verbose || true | |
176 | set -f | |
177 | exclusions=$(process_exclusions) | |
178 | if ifup -a --exclude=lo $exclusions $verbose && ifup_hotplug $exclusions $verbose | |
179 | then | |
180 | log_action_end_msg $? | |
181 | else | |
182 | log_action_end_msg $? | |
183 | fi | |
184 | ;; | |
185 | ||
186 | *) | |
187 | echo "Usage: /etc/init.d/networking {start|stop|reload|restart|force-reload}" | |
188 | exit 1 | |
189 | ;; | |
190 | esac | |
191 | ||
192 | exit 0 | |
193 | ||
194 | # vim: noet ts=8 |