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20628406 BP |
1 | # -*- sh -*- |
2 | # vi:syntax=sh | |
43bb5f82 BP |
3 | # This is a shell function library sourced by some Open vSwitch scripts. |
4 | # It is not intended to be invoked on its own. | |
5 | ||
e0edde6f | 6 | # Copyright (C) 2009, 2010, 2011, 2012 Nicira, Inc. |
43bb5f82 BP |
7 | # |
8 | # Licensed under the Apache License, Version 2.0 (the "License"); | |
9 | # you may not use this file except in compliance with the License. | |
10 | # You may obtain a copy of the License at: | |
11 | # | |
12 | # http://www.apache.org/licenses/LICENSE-2.0 | |
13 | # | |
14 | # Unless required by applicable law or agreed to in writing, software | |
15 | # distributed under the License is distributed on an "AS IS" BASIS, | |
16 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
17 | # See the License for the specific language governing permissions and | |
18 | # limitations under the License. | |
19 | ||
20 | ## ----------------- ## | |
21 | ## configure options ## | |
22 | ## ----------------- ## | |
23 | ||
24 | # All of these should be substituted by the Makefile at build time. | |
25 | logdir=${OVS_LOGDIR-'@LOGDIR@'} # /var/log/openvswitch | |
26 | rundir=${OVS_RUNDIR-'@RUNDIR@'} # /var/run/openvswitch | |
27 | sysconfdir=${OVS_SYSCONFDIR-'@sysconfdir@'} # /etc | |
28 | etcdir=$sysconfdir/openvswitch # /etc/openvswitch | |
29 | datadir=${OVS_PKGDATADIR-'@pkgdatadir@'} # /usr/share/openvswitch | |
30 | bindir=${OVS_BINDIR-'@bindir@'} # /usr/bin | |
31 | sbindir=${OVS_SBINDIR-'@sbindir@'} # /usr/sbin | |
32 | ||
c3bf5498 BP |
33 | # /etc/openvswitch or /var/lib/openvswitch |
34 | if test X"$OVS_DBDIR" != X; then | |
35 | dbdir=$OVS_DBDIR | |
36 | elif test X"$OVS_SYSCONFDIR" != X; then | |
37 | dbdir=$OVS_SYSCONFDIR/openvswitch | |
38 | else | |
39 | dbdir='@DBDIR@' | |
40 | fi | |
41 | ||
19cbf2b8 GS |
42 | ovs_ctl_log () { |
43 | echo "$@" >> "${logdir}/ovs-ctl.log" | |
44 | } | |
45 | ||
46528f78 | 46 | ovs_ctl () { |
ed87900d GS |
47 | case "$@" in |
48 | *"=strace"*) | |
49 | # In case of running the daemon with strace, piping the o/p causes | |
50 | # the script to block (strace probably does not close the inherited | |
51 | # pipe). So, do not log the o/p to ovs-ctl.log. | |
52 | "${datadir}/scripts/ovs-ctl" "$@" | |
53 | ;; | |
3b8ba174 GS |
54 | "status") |
55 | # In case of the command 'status', we should return the exit status | |
56 | # of ovs-ctl. It is also useful to document the o/p in ovs-ctl.log. | |
57 | display=`"${datadir}/scripts/ovs-ctl" "$@" 2>&1` | |
58 | rc=$? | |
691e4755 FL |
59 | if test -w "${logdir}/ovs-ctl.log"; then |
60 | echo "${display}" | tee -a "${logdir}/ovs-ctl.log" | |
61 | else | |
62 | echo "${display}" | |
63 | fi | |
3b8ba174 GS |
64 | return ${rc} |
65 | ;; | |
ed87900d GS |
66 | *) |
67 | echo "`date -u`:$@" >> "${logdir}/ovs-ctl.log" | |
a34779bc | 68 | "${datadir}/scripts/ovs-ctl" "$@" 2>&1 | tee -a "${logdir}/ovs-ctl.log" |
ed87900d GS |
69 | ;; |
70 | esac | |
46528f78 GS |
71 | } |
72 | ||
43bb5f82 | 73 | VERSION='@VERSION@' |
43bb5f82 | 74 | |
5824c938 BP |
75 | DAEMON_CWD=/ |
76 | ||
43bb5f82 BP |
77 | LC_ALL=C; export LC_ALL |
78 | ||
79 | ## ------------- ## | |
80 | ## LSB functions ## | |
81 | ## ------------- ## | |
82 | ||
83 | # Use the system's own implementations if it has any. | |
84 | if test -e /etc/init.d/functions; then | |
85 | . /etc/init.d/functions | |
86 | elif test -e /etc/rc.d/init.d/functions; then | |
87 | . /etc/rc.d/init.d/functions | |
88 | elif test -e /lib/lsb/init-functions; then | |
89 | . /lib/lsb/init-functions | |
90 | fi | |
91 | ||
92 | # Implement missing functions (e.g. OpenSUSE lacks 'action'). | |
93 | if type log_success_msg >/dev/null 2>&1; then :; else | |
94 | log_success_msg () { | |
95 | printf '%s.\n' "$*" | |
96 | } | |
97 | fi | |
98 | if type log_failure_msg >/dev/null 2>&1; then :; else | |
99 | log_failure_msg () { | |
100 | printf '%s ... failed!\n' "$*" | |
101 | } | |
102 | fi | |
103 | if type log_warning_msg >/dev/null 2>&1; then :; else | |
104 | log_warning_msg () { | |
105 | printf '%s ... (warning).\n' "$*" | |
106 | } | |
107 | fi | |
108 | if type action >/dev/null 2>&1; then :; else | |
109 | action () { | |
110 | STRING=$1 | |
111 | shift | |
112 | "$@" | |
113 | rc=$? | |
114 | if test $rc = 0; then | |
115 | log_success_msg "$STRING" | |
116 | else | |
117 | log_failure_msg "$STRING" | |
118 | fi | |
119 | return $rc | |
120 | } | |
121 | fi | |
122 | ||
123 | ## ------- ## | |
124 | ## Daemons ## | |
125 | ## ------- ## | |
126 | ||
3028ce25 BP |
127 | pid_exists () { |
128 | # This is better than "kill -0" because it doesn't require permission to | |
129 | # send a signal (so daemon_status in particular works as non-root). | |
130 | test -d /proc/"$1" | |
131 | } | |
132 | ||
1f3f3f0a CL |
133 | pid_comm_check () { |
134 | [ "$1" = "`cat /proc/$2/comm`" ] | |
135 | } | |
136 | ||
a4d04282 DDP |
137 | # version_geq version_a version_b |
138 | # | |
139 | # Compare (dot separated) version numbers. Returns true (exit code 0) if | |
140 | # version_a is greater or equal than version_b, otherwise false (exit code 1). | |
141 | version_geq() { | |
142 | echo $1 $2 | awk '{ | |
143 | n1 = split($1, a, "."); | |
144 | n2 = split($2, b, "."); | |
145 | n = (n1 > n2) ? n1 : n2; | |
146 | for (i = 1; i <= n; i++) { | |
147 | if (a[i]+0 < b[i]+0) exit 1 | |
148 | if (a[i]+0 > b[i]+0) exit 0 | |
149 | } | |
150 | }' | |
151 | } | |
152 | ||
778b01a3 JS |
153 | install_dir () { |
154 | DIR="$1" | |
03736a67 | 155 | INSTALL_MODE="${2:-755}" |
9ab5390d AC |
156 | INSTALL_USER="root" |
157 | INSTALL_GROUP="root" | |
158 | [ "$OVS_USER" != "" ] && INSTALL_USER="${OVS_USER%:*}" | |
159 | [ "${OVS_USER##*:}" != "" ] && INSTALL_GROUP="${OVS_USER##*:}" | |
160 | ||
778b01a3 | 161 | if test ! -d "$DIR"; then |
03736a67 | 162 | install -d -m "$INSTALL_MODE" -o "$INSTALL_USER" -g "$INSTALL_GROUP" "$DIR" |
778b01a3 JS |
163 | restorecon "$DIR" >/dev/null 2>&1 |
164 | fi | |
165 | } | |
166 | ||
43bb5f82 BP |
167 | start_daemon () { |
168 | priority=$1 | |
d0c06099 BP |
169 | wrapper=$2 |
170 | shift; shift | |
43bb5f82 | 171 | daemon=$1 |
e78eed56 | 172 | strace="" |
43bb5f82 BP |
173 | |
174 | # drop core files in a sensible place | |
778b01a3 | 175 | install_dir "$DAEMON_CWD" |
43bb5f82 BP |
176 | set "$@" --no-chdir |
177 | cd "$DAEMON_CWD" | |
178 | ||
179 | # log file | |
03736a67 | 180 | install_dir "$logdir" "750" |
43bb5f82 BP |
181 | set "$@" --log-file="$logdir/$daemon.log" |
182 | ||
183 | # pidfile and monitoring | |
778b01a3 | 184 | install_dir "$rundir" |
43bb5f82 | 185 | set "$@" --pidfile="$rundir/$daemon.pid" |
48458307 AC |
186 | set "$@" --detach |
187 | test X"$MONITOR" = Xno || set "$@" --monitor | |
43bb5f82 | 188 | |
d0c06099 BP |
189 | # wrapper |
190 | case $wrapper in | |
191 | valgrind) | |
192 | if (valgrind --version) > /dev/null 2>&1; then | |
287e3bc0 | 193 | set valgrind -q --leak-check=full --time-stamp=yes \ |
d0c06099 BP |
194 | --log-file="$logdir/$daemon.valgrind.log.%p" "$@" |
195 | else | |
196 | log_failure_msg "valgrind not installed, running $daemon without it" | |
197 | fi | |
198 | ;; | |
199 | strace) | |
200 | if (strace -V) > /dev/null 2>&1; then | |
e78eed56 EJ |
201 | strace="strace -tt -T -s 256 -ff" |
202 | if (strace -DV) > /dev/null 2>&1; then | |
203 | # Has the -D option. | |
204 | set $strace -D -o "$logdir/$daemon.strace.log" "$@" | |
205 | strace="" | |
206 | fi | |
d0c06099 BP |
207 | else |
208 | log_failure_msg "strace not installed, running $daemon without it" | |
209 | fi | |
210 | ;; | |
37368939 BP |
211 | glibc) |
212 | set env MALLOC_CHECK_=2 MALLOC_PERTURB_=165 "$@" | |
213 | ;; | |
d0c06099 BP |
214 | '') |
215 | ;; | |
216 | *) | |
217 | log_failure_msg "unknown wrapper $wrapper, running $daemon without it" | |
218 | ;; | |
219 | esac | |
220 | ||
43bb5f82 BP |
221 | # priority |
222 | if test X"$priority" != X; then | |
223 | set nice -n "$priority" "$@" | |
224 | fi | |
225 | ||
39f9a325 | 226 | action "Starting $daemon" "$@" || return 1 |
e78eed56 EJ |
227 | |
228 | if test X"$strace" != X; then | |
229 | # Strace doesn't have the -D option so we attach after the fact. | |
230 | setsid $strace -o "$logdir/$daemon.strace.log" \ | |
231 | -p `cat $rundir/$daemon.pid` > /dev/null 2>&1 & | |
232 | fi | |
43bb5f82 BP |
233 | } |
234 | ||
43bb5f82 BP |
235 | stop_daemon () { |
236 | if test -e "$rundir/$1.pid"; then | |
237 | if pid=`cat "$rundir/$1.pid"`; then | |
1f6daa73 TR |
238 | if pid_exists "$pid" >/dev/null 2>&1; then :; else |
239 | rm -f $rundir/$1.$pid.ctl $rundir/$1.$pid | |
240 | return 0 | |
241 | fi | |
a4d04282 DDP |
242 | |
243 | graceful="EXIT .1 .25 .65 1" | |
244 | actions="TERM .1 .25 .65 1 1 1 1 \ | |
245 | KILL 1 1 1 2 10 15 30 \ | |
246 | FAIL" | |
247 | version=`ovs-appctl -T 1 -t $rundir/$1.$pid.ctl version \ | |
248 | | awk 'NR==1{print $NF}'` | |
249 | ||
250 | # Use `ovs-appctl exit` only if the running daemon version | |
251 | # is >= 2.5.90. This script might be used during upgrade to | |
252 | # stop older versions of daemons which do not behave correctly | |
253 | # with `ovs-appctl exit` (e.g. ovs-vswitchd <= 2.5.0 deletes | |
254 | # internal ports). | |
255 | if version_geq "$version" "2.5.90"; then | |
256 | actions="$graceful $actions" | |
257 | fi | |
258 | for action in $actions; do | |
89bc5283 GS |
259 | if pid_exists "$pid" >/dev/null 2>&1; then :; else |
260 | return 0 | |
261 | fi | |
43bb5f82 | 262 | case $action in |
9b5422a9 IM |
263 | EXIT) |
264 | action "Exiting $1 ($pid)" \ | |
7491caa3 | 265 | ${bindir}/ovs-appctl -T 1 -t $rundir/$1.$pid.ctl exit $2 |
9b5422a9 | 266 | ;; |
43bb5f82 BP |
267 | TERM) |
268 | action "Killing $1 ($pid)" kill $pid | |
269 | ;; | |
270 | KILL) | |
271 | action "Killing $1 ($pid) with SIGKILL" kill -9 $pid | |
272 | ;; | |
273 | FAIL) | |
274 | log_failure_msg "Killing $1 ($pid) failed" | |
275 | return 1 | |
276 | ;; | |
277 | *) | |
89bc5283 | 278 | sleep $action |
43bb5f82 BP |
279 | ;; |
280 | esac | |
281 | done | |
282 | fi | |
283 | fi | |
284 | log_success_msg "$1 is not running" | |
285 | } | |
286 | ||
287 | daemon_status () { | |
288 | pidfile=$rundir/$1.pid | |
289 | if test -e "$pidfile"; then | |
290 | if pid=`cat "$pidfile"`; then | |
3028ce25 | 291 | if pid_exists "$pid"; then |
43bb5f82 BP |
292 | echo "$1 is running with pid $pid" |
293 | return 0 | |
294 | else | |
295 | echo "Pidfile for $1 ($pidfile) is stale" | |
296 | fi | |
297 | else | |
298 | echo "Pidfile for $1 ($pidfile) exists but cannot be read" | |
299 | fi | |
300 | else | |
301 | echo "$1 is not running" | |
302 | fi | |
303 | return 1 | |
304 | } | |
305 | ||
306 | daemon_is_running () { | |
307 | pidfile=$rundir/$1.pid | |
1f3f3f0a | 308 | test -e "$pidfile" && pid=`cat "$pidfile"` && pid_exists "$pid" && pid_comm_check $1 $pid |
43bb5f82 | 309 | } >/dev/null 2>&1 |
7a62e5cc | 310 | |
a1d5e459 GS |
311 | # Prints commands needed to move the ip address from interface $1 to interface |
312 | # $2 | |
313 | move_ip_address () { | |
314 | if [ -z "$1" ] || [ -z "$2" ]; then | |
315 | return | |
316 | fi | |
7a62e5cc | 317 | dev="$1" |
a1d5e459 | 318 | dst="$2" |
7a62e5cc GS |
319 | |
320 | # IP addresses (including IPv6). | |
321 | echo "ip addr flush dev $dev 2>/dev/null" # Suppresses "Nothing to flush". | |
322 | ip addr show dev $dev | while read addr; do | |
323 | set -- $addr | |
324 | ||
325 | # Check and trim family. | |
326 | family=$1 | |
327 | shift | |
328 | case $family in | |
329 | inet | inet6) ;; | |
330 | *) continue ;; | |
331 | esac | |
332 | ||
333 | # Trim device off the end--"ip" insists on having "dev" precede it. | |
334 | addrcmd= | |
335 | while test $# != 0; do | |
336 | case $1 in | |
337 | dynamic) | |
a6480fc6 GS |
338 | # XXX: According to 'man ip-address', "dynamic" is only |
339 | # used for ipv6 addresses. But, atleast on RHEL 7.4 | |
340 | # (iproute-3.10.0-87), it is being used for ipv4 | |
341 | # addresses assigned with dhcp. | |
342 | if [ "$family" = "inet" ]; then | |
343 | shift | |
344 | continue | |
345 | fi | |
7a62e5cc GS |
346 | # Omit kernel-maintained route. |
347 | continue 2 | |
348 | ;; | |
349 | scope) | |
350 | if test "$2" = link -a "$family" != inet6; then | |
351 | # Omit route derived from IP address, e.g. | |
352 | # 172.16.0.0/16 derived from 172.16.12.34, | |
353 | # but preserve IPv6 link-local address. | |
354 | continue 2 | |
355 | fi | |
356 | ;; | |
357 | "$dev"|"$dev:"*) | |
358 | # Address label string | |
a1d5e459 GS |
359 | label=`echo $1 | sed "s/$dev/$dst/"` |
360 | addrcmd="$addrcmd label $label" | |
7a62e5cc GS |
361 | shift |
362 | continue | |
363 | ;; | |
364 | esac | |
365 | addrcmd="$addrcmd $1" | |
366 | shift | |
367 | done | |
368 | if test "$1" != "$dev"; then | |
369 | addrcmd="$addrcmd $1" | |
370 | fi | |
371 | ||
a1d5e459 | 372 | echo ip -f $family addr add $addrcmd dev $dst |
7a62e5cc GS |
373 | done |
374 | } | |
375 | ||
a1d5e459 GS |
376 | # Prints commands needed to move the ip route of interface $1 to interface $2 |
377 | move_ip_routes () { | |
378 | if [ -z "$1" ] || [ -z "$2" ]; then | |
379 | return | |
380 | fi | |
7a62e5cc | 381 | dev="$1" |
a1d5e459 | 382 | dst="$2" |
7a62e5cc GS |
383 | echo "ip route flush dev $dev proto boot 2>/dev/null" # Suppresses "Nothing to flush". |
384 | ip route show dev $dev | while read route; do | |
385 | # "proto kernel" routes are installed by the kernel automatically. | |
386 | case $route in | |
387 | *" proto kernel "*) continue ;; | |
388 | esac | |
389 | ||
a1d5e459 | 390 | echo "ip route add $route dev $dst" |
7a62e5cc GS |
391 | done |
392 | } | |
04b29c34 | 393 | |
741fd33e | 394 | run_as_ovsuser() { |
9ab5390d | 395 | if [ "$OVS_USER" != "" ]; then |
89caad6a TR |
396 | local uid=$(id -u "${OVS_USER%:*}") |
397 | local gid=$(id -g "${OVS_USER%:*}") | |
398 | local groups=$(id -G "${OVS_USER%:*}" | tr ' ' ',') | |
741fd33e | 399 | setpriv --reuid "$uid" --regid "$gid" --groups "$groups" "$@" |
9ab5390d | 400 | else |
741fd33e | 401 | "$@" |
9ab5390d | 402 | fi |
04b29c34 GS |
403 | } |
404 | ||
741fd33e DM |
405 | ovsdb_tool () { |
406 | run_as_ovsuser ovsdb-tool -vconsole:off "$@" | |
407 | } | |
408 | ||
04b29c34 GS |
409 | create_db () { |
410 | DB_FILE="$1" | |
411 | DB_SCHEMA="$2" | |
412 | action "Creating empty database $DB_FILE" ovsdb_tool create "$DB_FILE" "$DB_SCHEMA" | |
413 | } | |
2db1b5d8 | 414 | |
79c7961b NS |
415 | backup_db () { |
416 | # Back up the old version. | |
417 | version=`ovsdb_tool db-version "$DB_FILE"` | |
418 | cksum=`ovsdb_tool db-cksum "$DB_FILE" | awk '{print $1}'` | |
419 | backup=$DB_FILE.backup$version-$cksum | |
420 | action "Backing up database to $backup" cp "$DB_FILE" "$backup" || return 1 | |
421 | } | |
422 | ||
2db1b5d8 GS |
423 | upgrade_db () { |
424 | DB_FILE="$1" | |
425 | DB_SCHEMA="$2" | |
426 | ||
427 | schemaver=`ovsdb_tool schema-version "$DB_SCHEMA"` | |
428 | if test ! -e "$DB_FILE"; then | |
429 | log_warning_msg "$DB_FILE does not exist" | |
778b01a3 | 430 | install_dir `dirname $DB_FILE` |
2db1b5d8 | 431 | create_db "$DB_FILE" "$DB_SCHEMA" |
dbb5ecb4 | 432 | elif test X"`ovsdb_tool needs-conversion "$DB_FILE" "$DB_SCHEMA"`" = Xyes; then |
79c7961b | 433 | backup_db || return 1 |
2db1b5d8 GS |
434 | |
435 | # Compact database. This is important if the old schema did not enable | |
436 | # garbage collection (i.e. if it did not have any tables with "isRoot": | |
437 | # true) but the new schema does. In that situation the old database | |
438 | # may contain a transaction that creates a record followed by a | |
439 | # transaction that creates the first use of the record. Replaying that | |
440 | # series of transactions against the new database schema (as "convert" | |
441 | # does) would cause the record to be dropped by the first transaction, | |
442 | # then the second transaction would cause a referential integrity | |
443 | # failure (for a strong reference). | |
444 | # | |
445 | # Errors might occur on an Open vSwitch downgrade if ovsdb-tool doesn't | |
446 | # understand some feature of the schema used in the OVSDB version that | |
447 | # we're downgrading from, so we don't give up on error. | |
448 | action "Compacting database" ovsdb_tool compact "$DB_FILE" | |
449 | ||
450 | # Upgrade or downgrade schema. | |
451 | if action "Converting database schema" ovsdb_tool convert "$DB_FILE" "$DB_SCHEMA"; then | |
452 | : | |
453 | else | |
454 | log_warning_msg "Schema conversion failed, using empty database instead" | |
455 | rm -f "$DB_FILE" | |
456 | create_db "$DB_FILE" "$DB_SCHEMA" | |
457 | fi | |
458 | fi | |
459 | } | |
36109434 | 460 | |
79c7961b NS |
461 | upgrade_cluster () { |
462 | local DB_SCHEMA=$1 DB_SERVER=$2 | |
463 | local schema_name=$(ovsdb-tool schema-name $1) || return 1 | |
464 | ||
465 | action "Waiting for $schema_name to come up" ovsdb-client -t 30 wait "$DB_SERVER" "$schema_name" connected || return $? | |
466 | local db_version=$(ovsdb-client -t 10 get-schema-version "$DB_SERVER" "$schema_name") || return $? | |
467 | local target_version=$(ovsdb-tool schema-version "$DB_SCHEMA") || return $? | |
468 | ||
469 | if ovsdb-tool compare-versions "$db_version" == "$target_version"; then | |
470 | : | |
471 | elif ovsdb-tool compare-versions "$db_version" ">" "$target_version"; then | |
472 | log_warning_msg "Database $schema_name has newer schema version ($db_version) than our local schema ($target_version), possibly an upgrade is partially complete?" | |
473 | else | |
474 | action "Upgrading database $schema_name from schema version $db_version to $target_version" ovsdb-client -t 30 convert "$DB_SERVER" "$DB_SCHEMA" | |
475 | fi | |
476 | } | |
477 | ||
478 | create_cluster () { | |
479 | DB_FILE="$1" | |
480 | DB_SCHEMA="$2" | |
481 | LOCAL_ADDR="$3" | |
482 | ||
483 | if test ! -e "$DB_FILE"; then | |
484 | action "Creating cluster database $DB_FILE" ovsdb_tool create-cluster "$DB_FILE" "$DB_SCHEMA" "$LOCAL_ADDR" | |
485 | elif ovsdb_tool db-is-standalone "$DB_FILE"; then | |
486 | # Convert standalone database to clustered. | |
487 | backup_db || return 1 | |
488 | action "Creating cluster database $DB_FILE from existing one" \ | |
489 | ovsdb_tool create-cluster "$DB_FILE" "$backup" "$LOCAL_ADDR" | |
490 | fi | |
491 | } | |
492 | ||
493 | join_cluster() { | |
494 | DB_FILE="$1" | |
495 | SCHEMA_NAME="$2" | |
496 | LOCAL_ADDR="$3" | |
497 | REMOTE_ADDR="$4" | |
498 | ||
499 | if test ! -e "$DB_FILE"; then | |
500 | ovsdb_tool join-cluster "$DB_FILE" "$SCHEMA_NAME" "$LOCAL_ADDR" "$REMOTE_ADDR" | |
501 | elif ovsdb_tool db-is-standalone "$DB_FILE"; then | |
502 | # Backup standalone database and join cluster. | |
503 | backup_db || return 1 | |
504 | action "Joining $DB_FILE to cluster" \ | |
505 | ovsdb_tool join-cluster "$DB_FILE" "$SCHEMA_NAME" "$LOCAL_ADDR" | |
506 | fi | |
507 | } | |
508 | ||
36109434 TR |
509 | ovs_vsctl () { |
510 | ovs-vsctl --no-wait "$@" | |
511 | } | |
512 | ||
513 | ## ----------------- ## | |
514 | ## force-reload-kmod ## | |
515 | ## ----------------- ## | |
516 | ||
15117123 AC |
517 | ovs_kmod_ctl () { |
518 | "$dir0/ovs-kmod-ctl" "$@" | |
519 | } | |
520 | ||
36109434 TR |
521 | internal_interfaces () { |
522 | # Outputs a list of internal interfaces: | |
523 | # | |
524 | # - There is an internal interface for every bridge, whether it | |
525 | # has an Interface record or not and whether the Interface | |
526 | # record's 'type' is properly set or not. | |
527 | # | |
528 | # - There is an internal interface for each Interface record whose | |
529 | # 'type' is 'internal'. | |
530 | # | |
531 | # But ignore interfaces that don't really exist. | |
532 | for d in `(ovs_vsctl --bare \ | |
533 | -- --columns=name find Interface type=internal \ | |
534 | -- list-br) | sort -u` | |
535 | do | |
536 | if test -e "/sys/class/net/$d"; then | |
537 | printf "%s " "$d" | |
538 | fi | |
539 | done | |
540 | } | |
541 | ||
542 | ovs_save () { | |
543 | bridges=`ovs_vsctl -- --real list-br` | |
544 | if [ -n "${bridges}" ] && \ | |
545 | "$datadir/scripts/ovs-save" "$1" ${bridges} > "$2"; then | |
546 | chmod +x "$2" | |
547 | return 0 | |
548 | fi | |
549 | [ -z "${bridges}" ] && return 0 | |
550 | } | |
551 | ||
552 | save_flows_if_required () { | |
553 | if test X"$DELETE_BRIDGES" != Xyes; then | |
554 | action "Saving flows" ovs_save save-flows "${script_flows}" | |
555 | fi | |
556 | } | |
557 | ||
558 | save_interfaces () { | |
559 | "$datadir/scripts/ovs-save" save-interfaces ${ifaces} \ | |
560 | > "${script_interfaces}" | |
561 | } | |
562 | ||
563 | flow_restore_wait () { | |
564 | if test X"${OVS_VSWITCHD:-yes}" = Xyes; then | |
565 | ovs_vsctl set open_vswitch . other_config:flow-restore-wait="true" | |
566 | fi | |
567 | } | |
568 | ||
569 | flow_restore_complete () { | |
570 | if test X"${OVS_VSWITCHD:-yes}" = Xyes; then | |
571 | ovs_vsctl --if-exists remove open_vswitch . other_config \ | |
572 | flow-restore-wait="true" | |
573 | fi | |
574 | } | |
575 | ||
576 | restore_flows () { | |
577 | [ -x "${script_flows}" ] && \ | |
578 | action "Restoring saved flows" "${script_flows}" | |
579 | } | |
580 | ||
581 | restore_interfaces () { | |
582 | [ ! -x "${script_interfaces}" ] && return 0 | |
583 | action "Restoring interface configuration" "${script_interfaces}" | |
584 | rc=$? | |
585 | if test $rc = 0; then | |
586 | level=debug | |
587 | else | |
588 | level=err | |
589 | fi | |
590 | log="logger -p daemon.$level -t ovs-save" | |
591 | $log "interface restore script exited with status $rc:" | |
592 | $log -f "$script_interfaces" | |
593 | } | |
594 | ||
595 | init_restore_scripts () { | |
596 | script_interfaces=`mktemp` | |
597 | script_flows=`mktemp` | |
598 | trap 'rm -f "${script_interfaces}" "${script_flows}"' 0 | |
599 | } | |
600 | ||
601 | force_reload_kmod () { | |
602 | ||
603 | if test X"${OVS_VSWITCHD:-yes}" != Xyes; then | |
604 | log_failure_msg "Reloading of kmod without ovs-vswitchd is an error" | |
605 | exit 1 | |
606 | fi | |
607 | ||
608 | ifaces=`internal_interfaces` | |
609 | action "Detected internal interfaces: $ifaces" true | |
610 | ||
611 | init_restore_scripts | |
612 | save_flows_if_required | |
613 | ||
614 | # Restart the database first, since a large database may take a | |
615 | # while to load, and we want to minimize forwarding disruption. | |
616 | stop_ovsdb | |
617 | start_ovsdb || return 1 | |
618 | ||
619 | stop_forwarding | |
620 | ||
621 | if action "Saving interface configuration" save_interfaces; then | |
622 | : | |
623 | else | |
624 | log_warning_msg "Failed to save configuration, not replacing kernel module" | |
625 | start_forwarding | |
626 | add_managers | |
627 | exit 1 | |
628 | fi | |
629 | chmod +x "$script_interfaces" | |
630 | ||
631 | for dp in `ovs-dpctl dump-dps`; do | |
632 | action "Removing datapath: $dp" ovs-dpctl del-dp "$dp" | |
633 | done | |
634 | ||
e1a64872 GR |
635 | if test -e /sys/module/ip_gre; then |
636 | action "Forcing removal of ip_gre module" rmmod ip_gre | |
637 | fi | |
638 | ||
639 | if test -e /sys/module/gre; then | |
640 | action "Forcing removal of gre module" rmmod gre | |
641 | fi | |
642 | ||
15117123 | 643 | ovs_kmod_ctl remove |
36109434 TR |
644 | |
645 | # Start vswitchd by asking it to wait till flow restore is finished. | |
646 | flow_restore_wait | |
647 | start_forwarding || return 1 | |
648 | ||
649 | # Restore saved flows and inform vswitchd that we are done. | |
650 | restore_flows | |
651 | flow_restore_complete | |
652 | add_managers | |
653 | ||
654 | restore_interfaces | |
655 | ||
656 | "$datadir/scripts/ovs-check-dead-ifs" | |
657 | } | |
658 | ||
659 | ## ------- ## | |
660 | ## restart ## | |
661 | ## ------- ## | |
662 | ||
663 | restart () { | |
664 | if daemon_is_running ovsdb-server && daemon_is_running ovs-vswitchd; then | |
665 | init_restore_scripts | |
666 | if test X"${OVS_VSWITCHD:-yes}" = Xyes; then | |
667 | save_flows_if_required | |
668 | fi | |
669 | fi | |
670 | ||
671 | # Restart the database first, since a large database may take a | |
672 | # while to load, and we want to minimize forwarding disruption. | |
673 | stop_ovsdb | |
674 | start_ovsdb || return 1 | |
675 | ||
676 | stop_forwarding | |
677 | ||
678 | # Start vswitchd by asking it to wait till flow restore is finished. | |
679 | flow_restore_wait | |
680 | start_forwarding || return 1 | |
681 | ||
682 | # Restore saved flows and inform vswitchd that we are done. | |
683 | restore_flows | |
684 | flow_restore_complete | |
685 | add_managers | |
686 | } |