1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
|
#!/bin/bash
#
# /etc/rc.d/init.d/frr
#
# Start/Stop the FRR Routing daemons
# <any general comments about this init script>
#
# chkconfig: 2345 15 85
#
# description: FRRouting (FRR) is a routing suite for IP routing protocols
# like BGP, OSPF, RIP and others. This script contols the main
# daemon "frr" as well as the individual protocol daemons.
#
### BEGIN INIT INFO
# Provides: frr
# Required-Start: $local_fs $network $syslog
# Required-Stop: $local_fs $syslog
# Should-Start: $syslog
# Should-Stop: $network $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start/Stop the FRR Routing daemons
# Description: FRRouting (FRR) is a routing suite for IP routing protocols
# like BGP, OSPF, RIP and others. This script contols the main
# daemon "frr" as well as the individual protocol daemons.
### END INIT INFO
PATH=/bin:/usr/bin:/sbin:/usr/sbin
D_PATH=/usr/lib/frr
C_PATH=/etc/frr
V_PATH=/var/run/frr
# Local Daemon selection may be done by using /etc/frr/daemons.
# See /usr/share/doc/frr/README.Debian.gz for further information.
# Keep zebra first and do not list watchfrr!
DAEMONS="zebra bgpd ripd ripngd ospfd ospf6d isisd pimd pbrd ldpd nhrpd eigrpd babeld staticd sharpd bfdd fabricd"
MAX_INSTANCES=5
RELOAD_SCRIPT=/usr/lib/frr/frr-reload.py
. /etc/init.d/functions
# Print the name of the pidfile.
pidfile()
{
echo "$V_PATH/$1.pid"
}
# Print the name of the vtysh.
vtyfile()
{
echo "$V_PATH/$1.vty"
}
# Check if daemon is started by using the pidfile.
started()
{
[ ! -e `pidfile $1` ] && return 3
if [ -n "$2" ] && [ "$2" == "log" ]; then
status -p `pidfile $1` $1 && return 0 || return $?
else
kill -0 `cat \`pidfile $1\`` 2> /dev/null || return 1
return 0
fi
}
# Loads the config via vtysh -b if configured to do so.
vtysh_b ()
{
# Rember, that all variables have been incremented by 1 in convert_daemon_prios()
if [ "$vtysh_enable" = 2 -a -f $C_PATH/frr.conf ]; then
/usr/bin/vtysh -b -n
fi
}
# Check if the daemon is activated and if its executable and config files
# are in place.
# params: daemon name
# returns: 0=ok, 1=error
check_daemon()
{
# If the integrated config file is used the others are not checked.
if [ -r "$C_PATH/frr.conf" ]; then
return 0
fi
# vtysh_enable has no config file nor binary so skip check.
# (Not sure why vtysh_enable is in this list but does not hurt)
if [ $1 != "watchfrr" -a $1 != "vtysh_enable" ]; then
# check for daemon binary
if [ ! -x "$D_PATH/$1" ]; then return 1; fi
# check for config file
if [ -n "$2" ]; then
if [ ! -r "$C_PATH/$1-$2.conf" ]; then
touch "$C_PATH/$1-$2.conf"
chown frr:frr "$C_PATH/$1-$2.conf"
fi
elif [ ! -r "$C_PATH/$1.conf" ]; then
touch "$C_PATH/$1.conf"
chown frr:frr "$C_PATH/$1.conf"
fi
fi
return 0
}
# Starts the server if it's not already running according to the pid file.
# The Frr daemons creates the pidfile when starting.
start()
{
local dmn inst
dmn="$1"
inst="$2"
ulimit -n $MAX_FDS > /dev/null 2> /dev/null
if [ "$dmn" = "watchfrr" ]; then
# We may need to restart watchfrr if new daemons are added and/or
# removed
if started "$dmn" ; then
stop watchfrr
else
# Echo only once. watchfrr is printed in the stop above
echo -n " $dmn"
fi
if [ -e /var/run/frr/watchfrr.started ] ; then
rm /var/run/frr/watchfrr.started
fi
# redhat /etc/init.d/functions daemon() re-expands args :(
# eval "set - $watchfrr_options"
daemon --pidfile=`pidfile $dmn` "$D_PATH/$dmn" -d "$watchfrr_options"
RETVAL=$?
[ $RETVAL -ne 0 ] && break
for i in `seq 1 10`;
do
if [ -e /var/run/frr/watchfrr.started ] ; then
RETVAL=0
break
else
sleep 1
fi
done
RETVAL=1
elif [ -n "$inst" ]; then
echo -n " $dmn-$inst"
if ! check_daemon $dmn $inst ; then
echo -n " (binary does not exist)"
return;
fi
daemon --pidfile=`pidfile $dmn-$inst` "$D_PATH/$dmn" -d `eval echo "$""$dmn""_options"` -n "$inst"
RETVAL=$?
else
echo -n " $dmn "
if ! check_daemon $dmn; then
echo " (binary does not exist)"
return;
fi
daemon --pidfile=`pidfile $dmn` "$D_PATH/$dmn" -d `eval echo "$""$dmn""_options"`
RETVAL=$?
fi
echo
[ $RETVAL -eq 0 ] && touch /var/lock/subsys/$dmn
return $RETVAL
}
# Stop the daemon given in the parameter, printing its name to the terminal.
stop()
{
local inst
if [ -n "$2" ]; then
inst="$1-$2"
else
inst="$1"
fi
if ! started "$inst" ; then
# echo -n " ($inst)"
return 0
else
echo -n " $inst"
PIDFILE=`pidfile $inst`
PID=`cat $PIDFILE 2>/dev/null`
killproc -p "$PIDFILE" "$D_PATH/$1"
RETVAL=$?
[ $RETVAL -eq 0 ] && rm -f $lockfile
rm -f `pidfile $inst`
rm -f `vtyfile $inst`
echo
return $RETVAL
fi
}
# Converts values from /etc/frr/daemons to all-numeric values.
convert_daemon_prios()
{
for name in $DAEMONS zebra vtysh_enable watchfrr_enable; do
# First, assign the value set by the user to $value
eval value=\${${name}:0:3}
# Daemon not activated or entry missing?
if [ "$value" = "no" -o "$value" = "" ]; then value=0; fi
# These strings parsed for backwards compatibility.
if [ "$value" = "yes" -o "$value" = "true" ]; then
value=1;
fi
# Zebra is threatened special. It must be between 0=off and the first
# user assigned value "1" so we increase all other enabled daemons' values.
if [ "$name" != "zebra" -a "$value" -gt 0 ]; then value=`expr "$value" + 1`; fi
# If e.g. name is zebra then we set "zebra=yes".
eval $name=$value
done
}
# Starts watchfrr for all wanted daemons.
start_watchfrr()
{
local daemon_name
local daemon_prio
local found_one
local daemon_inst
# Start the monitor daemon only if desired.
if [ 0 -eq "$watchfrr_enable" ]; then
return
fi
# Check variable type
if declare -p watchfrr_options | grep -q '^declare \-a'; then
# old array support
watchfrr_options="${watchfrr_options[@]}"
fi
# Which daemons have been started?
found_one=0
for daemon_name in $DAEMONS; do
eval daemon_prio=\$$daemon_name
if [ "$daemon_prio" -gt 0 ]; then
eval "daemon_inst=\${${daemon_name}_instances//,/ }"
if [ -n "$daemon_inst" ]; then
for inst in ${daemon_inst}; do
eval "inst_disable=\${${daemon_name}_${inst}}"
if [ -z ${inst_disable} ] || [ ${inst_disable} != 0 ]; then
if check_daemon $daemon_name $inst; then
watchfrr_options="$watchfrr_options ${daemon_name}-${inst}"
fi
fi
done
else
if check_daemon $daemon_name; then
watchfrr_options="$watchfrr_options $daemon_name"
fi
fi
found_one=1
fi
done
# Start if at least one daemon is activated.
if [ $found_one -eq 1 ]; then
echo "Starting FRRouting monitor daemon:"
start watchfrr
fi
}
# Stopps watchfrr.
stop_watchfrr()
{
echo "Stopping FRRouting monitor daemon:"
stop watchfrr
}
# Stops all daemons that have a lower level of priority than the given.
# (technically if daemon_prio >= wanted_prio)
stop_prio()
{
local wanted_prio
local daemon_prio
local daemon_list
local daemon_inst
local inst
if [ -n "$2" ] && [[ "$2" =~ (.*)-(.*) ]]; then
daemon=${BASH_REMATCH[1]}
inst=${BASH_REMATCH[2]}
else
daemon="$2"
fi
wanted_prio=$1
daemon_list=${daemon:-$DAEMONS}
echo "Stopping FRRouting daemons (prio:$wanted_prio):"
for prio_i in `seq 10 -1 $wanted_prio`; do
for daemon_name in $daemon_list; do
eval daemon_prio=\${${daemon_name}:0:3}
daemon_inst=""
if [ $daemon_prio -eq $prio_i ]; then
eval "daemon_inst=\${${daemon_name}_instances//,/ }"
if [ -n "$daemon_inst" ]; then
for i in ${daemon_inst}; do
if [ -n "$inst" ] && [ "$i" == "$inst" ]; then
stop "$daemon_name" "$inst"
elif [ x"$inst" == x ]; then
stop "$daemon_name" "$i"
fi
done
else
stop "$daemon_name"
fi
fi
done
done
if [ -z "$inst" ]; then
# Now stop other daemons that're prowling, coz the daemons file changed
echo "Stopping other FRRouting daemons"
if [ -n "$daemon" ]; then
eval "file_list_suffix="$V_PATH"/"$daemon*""
else
eval "file_list_suffix="$V_PATH/*""
fi
for pidfile in $file_list_suffix.pid; do
if [ -f "$pidfile" ]; then
filename=${pidfile##*/}
daemon=${filename%.*}
echo -n " $daemon"
killproc -p "$pidfile" "$daemon"
RETVAL=$?
[ $RETVAL -eq 0 ] && rm -f $lockfile
rm -f "$pidfile"
echo
fi
done
echo -n "Removing remaining .vty files"
for vtyfile in $file_list_suffix.vty; do
rm -rf "$vtyfile"
done
echo
fi
}
# Starts all daemons that have a higher level of priority than the given.
# (technically if daemon_prio <= wanted_prio)
start_prio()
{
local wanted_prio
local daemon_prio
local daemon_list
local daemon_name
local daemon_inst
local inst
if [ -n "$2" ] && [[ "$2" =~ (.*)-(.*) ]]; then
daemon=${BASH_REMATCH[1]}
inst=${BASH_REMATCH[2]}
else
daemon="$2"
fi
wanted_prio=$1
daemon_list=${daemon:-$DAEMONS}
echo "Starting FRRouting daemons (prio:$wanted_prio):"
for prio_i in `seq 1 $wanted_prio`; do
for daemon_name in $daemon_list; do
eval daemon_prio=\$${daemon_name}
daemon_inst=""
if [ $daemon_prio -eq $prio_i ]; then
eval "daemon_inst=\${${daemon_name}_instances//,/ }"
if [ -n "$daemon_inst" ]; then
if [ `echo "$daemon_inst" | wc -w` -gt ${MAX_INSTANCES} ]; then
echo "Max instances supported is ${MAX_INSTANCES}. Aborting"
exit 1
fi
# Check if we're starting again by switching from single instance
# to MI version
if started "$daemon_name"; then
PIDFILE=`pidfile $daemon_name`
killproc -p "$PIDFILE" "$daemon_name"
rm -f `pidfile $1`
rm -f `vtyfile $1`
fi
for i in ${daemon_inst}; do
if [ -n "$inst" ] && [ "$i" == "$inst" ]; then
start "$daemon_name" "$inst"
elif [ x"$inst" == x ]; then
start "$daemon_name" "$i"
fi
done
else
# Check if we're starting again by switching from
# single instance to MI version
eval "file_list_suffix="$V_PATH"/"$daemon_name-*""
for pidfile in $file_list_suffix.pid; do
if [ -f "$pidfile" ]; then
killproc -p "$pidfile" "$daemon_name"
rm -rf "$pidfile"
fi
done
for vtyfile in $file_list_suffix.vty; do
rm -rf "$vtyfile"
done
start "$daemon_name"
fi
fi
done
done
}
check_status()
{
local daemon_name
local daemon_prio
local daemon_inst
local failed_status=0
if [ -n "$1" ] && [[ "$1" =~ (.*)-(.*) ]]; then
daemon=${BASH_REMATCH[1]}
inst=${BASH_REMATCH[2]}
else
daemon="$1"
fi
daemon_list=${daemon:-$DAEMONS}
# Which daemons have been started?
for daemon_name in $daemon_list; do
eval daemon_prio=\$$daemon_name
if [ "$daemon_prio" -gt 0 ]; then
eval "daemon_inst=\${${daemon_name}_instances//,/ }"
if [ -n "$daemon_inst" ]; then
for i in ${daemon_inst}; do
if [ -n "$inst" -a "$inst" = "$i" ]; then
started "$1" "log" || failed_status=$?
elif [ -z "$inst" ]; then
started "$daemon_name-$i" "log" || failed_status=$?
fi
done
else
started "$daemon_name" "log" || failed_status=$?
fi
fi
done
# All daemons that need to have been started are up and running
return $failed_status
}
#########################################################
# Main program #
#########################################################
# Config broken but script must exit silently.
[ ! -r "$C_PATH/daemons" ] && exit 0
# Load configuration
. "$C_PATH/daemons"
# Read configuration variable file if it is present
[ -r /etc/sysconfig/frr ] && . /etc/sysconfig/frr
MAX_INSTANCES=${MAX_INSTANCES:=5}
# Set priority of un-startable daemons to 'no' and substitute 'yes' to '0'
convert_daemon_prios
if [ ! -d $V_PATH ]; then
echo "Creating $V_PATH"
mkdir -p $V_PATH
chown frr:frr $V_PATH
chmod 755 /$V_PATH
fi
if [ -n "$3" ] && [ "$3" != "all" ]; then
dmn="$2"-"$3"
elif [ -n "$2" ] && [ "$2" != "all" ]; then
dmn="$2"
fi
case "$1" in
start)
# Try to load this necessary (at least for 2.6) module.
if [ -d /lib/modules/`uname -r` ] ; then
echo "Loading capability module if not yet done."
LC_ALL=C modprobe -a capability 2>&1 | egrep -v "(not found|Can't locate)"
fi
# Start all daemons
cd $C_PATH/
if [ "$2" != "watchfrr" ]; then
start_prio 10 $dmn
fi
start_watchfrr
vtysh_b
;;
1|2|3|4|5|6|7|8|9|10)
# Stop/start daemons for the appropriate priority level
stop_prio $1
start_prio $1
vtysh_b
;;
stop|0)
# Stop all daemons at level '0' or 'stop'
stop_watchfrr
if [ "$dmn" != "watchfrr" ]; then
[ -n "${dmn}" ] && eval "${dmn/-/_}=0"
stop_prio 0 $dmn
fi
if [ -z "$dmn" -o "$dmn" = "zebra" ]; then
echo "Removing all routes made by zebra."
ip route flush proto zebra
# At least in CentOS/RHEL 6, iproute2 doesn't know
# about the new protocol names, so we have to flush them
# by number (it also doesn't support rt_protos.d
ip route flush proto 186
ip route flush proto 187
ip route flush proto 188
ip route flush proto 189
ip route flush proto 190
ip route flush proto 191
ip route flush proto 192
ip route flush proto 193
ip route flush proto 194
else
[ -n "$dmn" ] && eval "${dmn/-/_}=0"
start_watchfrr
fi
;;
reload)
# Just apply the commands that have changed, no restart necessary
if [ ! -x "$RELOAD_SCRIPT" ]; then
echo "frr-reload - reload not supported. Use restart or install frr-pythontools package"
exit 1
fi
NEW_CONFIG_FILE="${2:-$C_PATH/frr.conf}"
if [ ! -r $NEW_CONFIG_FILE ]; then
echo "Unable to read configuration file $NEW_CONFIG_FILE. Only supporting integrated config"
exit 1
fi
echo "Applying only incremental changes to running configuration from frr.conf"
"$RELOAD_SCRIPT" --reload /etc/frr/frr.conf
exit $?
;;
status)
check_status $dmn
exit $?
;;
restart|force-reload)
$0 stop $dmn
sleep 1
$0 start $dmn
;;
*)
echo "Usage: /etc/init.d/frr {start|stop|status|reload|restart|force-reload|<priority>} [daemon]"
echo " E.g. '/etc/init.d/frr 5' would start all daemons with a prio 1-5."
echo " reload applies only modifications from the running config to all daemons."
echo " reload neither restarts starts any daemon nor starts any new ones."
echo " Read /usr/share/doc/frr/README.Debian for details."
exit 1
;;
esac
exit 0
|