src/helpers/bridge-stp

   1 #!/bin/sh
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire - An Open Source Firewall Solution                                   #
   5 # Copyright (C) 2011 IPFire 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 EXIT_USERSPACE_STP=0
  23 EXIT_KERNEL_STP=1
  24
  25 # Change LOG_FACILITY that we will find our messages in syslog.
  26 LOG_FACILITY=$(basename ${0})
  27
  28 . /usr/lib/network/functions
  29
  30 # Read network configuration.
  31 network_config_read
  32
  33 zone=${1}
  34 assert isset zone
  35
  36 action=${2}
  37 assert isset action
  38
  39 # Exit immediately, if zone configuration does not exist.
  40 # This is for manually created bridges.
  41 if ! zone_exists ${zone}; then
  42         exit ${EXIT_KERNEL_STP}
  43 fi
  44
  45 # Read zone configuration.
  46 zone_config_read ${zone}
  47
  48 # Make sure STP is enabled for this zone.
  49 assert enabled STP
  50
  51 log DEBUG "Configured STP mode is '${STP_MODE}'"
  52
  53 case "${STP_MODE}" in
  54         rstp)
  55                 # Check if mstpd is running. If not, try to start it.
  56                 if ! service_is_active mstpd; then
  57                         service_start "mstpd.service"
  58
  59                         if ! service_is_active "mstpd.service"; then
  60                                 log ERROR "mstpd is not running. STP might not work."
  61                                 exit 1
  62                         fi
  63                 fi
  64
  65                 # Set the right protocol that should be used.
  66                 # Do this after the bridge has been added.
  67                 (
  68                         sleep 2
  69                         stp_bridge_set_protocol "${zone}" "${STP_MODE}"
  70                 ) &
  71
  72                 # Tell mstpd that STP has to be enabled/disabled.
  73                 case "${action}" in
  74                         start)
  75                                 log DEBUG "Enabling userspace STP for zone '${zone}'"
  76                                 exec mstpctl addbridge ${zone}
  77                                 ;;
  78                         stop)
  79                                 log DEBUG "Disabling userspace STP for zone '${zone}'"
  80                                 exec mstpctl delbridge ${zone}
  81                                 ;;
  82                 esac
  83
  84                 log ERROR "Could not properly exec mstpctl."
  85                 ;;
  86         stp)
  87                 case "${action}" in
  88                         start)
  89                                 log DEBUG "Enabling kernel STP for zone '${zone}'"
  90                                 exit ${EXIT_KERNEL_STP}
  91                                 ;;
  92                         stop)
  93                                 log DEBUG "Disabling kernel STP for zone '${zone}'"
  94                                 exit ${EXIT_OK}
  95                                 ;;
  96                 esac
  97                 ;;
  98 esac
  99
 100 # Fall back to kernel STP.
 101 exit ${EXIT_KERNEL_STP}