scripts/ovirt-process-config

   1 #!/bin/bash
   2 #
   3 # Takes as input a reference to an encoded configuration file
   4 # and produces from that a kernel module file and a network
   5 # configuration file. It then restarts the networking service
   6 # and saves the configuration files.
   7
   8 . /usr/libexec/ovirt-functions
   9
  10 ME=$(basename "$0")
  11 warn() { printf '%s: %s\n' "$ME" "$*" >&2; }
  12 die() { warn "$*"; exit 1; }
  13
  14 try_h() { printf "Try \`$ME -h' for more information.\n" >&2; exit 1;}
  15 try_help() { printf "Usage: \`$ME [config] [module output] [config output]\n" >&2; exit 1;}
  16
  17 case $# in
  18   0|1|2) warn "too few arguments"; try_help;;
  19   3) ;;
  20   *) warn "too many arguments"; try_help;;
  21 esac
  22
  23 CONFIG=$1
  24 OVIRT_KERNEL_MODULE_FILE=$2
  25 OVIRT_CONFIG_OUTPUT_FILE=$3
  26
  27 modconf=$(awk '/^[ \t]*bonding=.+/ {
  28         match($0, "^[ \t]*bonding=(.+)", data)
  29         printf "data[2] = %s\n", data[2]
  30
  31         if (match("[^[:alnum:]=_@-]", data[2]) >= 0) {
  32             printf "invalid bonding alias: \"%s\"\n", data[2];
  33             exit 1;
  34         }
  35
  36         alias=data[2]
  37
  38         printf("install %s bonding", alias)
  39     }' $CONFIG)
  40
  41 echo "$modconf" > $OVIRT_KERNEL_MODULE_FILE
  42
  43 networking=$(awk '/^[ \t]*ifcfg=/ {
  44     match($0, "^[ \t]*ifcfg=(.*)", data)
  45     split(data[1], ifcfg, "|")
  46
  47     mac = ifcfg[1]
  48     iface = ifcfg[2]
  49     ifcfg_dir = "/files/etc/sysconfig/network-scripts"
  50
  51     printf("rm %s/ifcfg-%s\n", ifcfg_dir, iface)
  52     printf("set %s/ifcfg-%s/DEVICE %s\n", ifcfg_dir, iface, iface)
  53
  54     for (line in ifcfg) {
  55         if(line > 2) {
  56             match(ifcfg[line], "(^[^=]+)=(.*)", values)
  57             field=values[1]
  58             value=values[2]
  59
  60             if(length(field) == 0) {
  61                 print "Missing field name."
  62                 exit 1
  63             }
  64
  65             if(length(value) == 0) {
  66                 print "Missing field value."
  67                 exit 2
  68            }
  69
  70             printf("set %s/ifcfg-%s/%s %s\n", ifcfg_dir, iface, field, value)
  71         }
  72     }
  73
  74 }' $CONFIG)
  75
  76 SUCCESS=$?
  77
  78 if [ $SUCCESS != 0 ]; then
  79     case $SUCCESS in
  80         1) error="missing field name";;
  81         2) error="missing field value";;
  82     esac
  83
  84     die "Bad data received: ${error}"
  85 fi
  86
  87 echo "$networking" > $OVIRT_CONFIG_OUTPUT_FILE
  88
  89 if [ -f $OVIRT_CONFIG_OUTPUT_FILE ]; then
  90     augtool $OVIRT_CONFIG_OUTPUT_FILE \
  91         && RESULT=0 || RESULT=1
  92     # FIXME do not store ifcfg-lo
  93     if ls /etc/sysconfig/network-scripts/ifcfg* >/dev/null 2>/dev/null; then
  94         ovirt_store_config /etc/sysconfig/network-scripts/ifcfg*
  95     fi
  96 fi
  97
  98 exit $RESULT