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