src/initscripts/networking/dhcpcd.exe

   1 ###############################################################################
   2 #                                                                             #
   3 # IPFire.org - A linux based firewall                                         #
   4 # Copyright (C) 2007-2022  IPFire Team  <info@ipfire.org>                     #
   5 #                                                                             #
   6 # This program is free software: you can redistribute it and/or modify        #
   7 # it under the terms of the GNU General Public License as published by        #
   8 # the Free Software Foundation, either version 3 of the License, or           #
   9 # (at your option) any later version.                                         #
  10 #                                                                             #
  11 # This program is distributed in the hope that it will be useful,             #
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  14 # GNU General Public License for more details.                                #
  15 #                                                                             #
  16 # You should have received a copy of the GNU General Public License           #
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  18 #                                                                             #
  19 ###############################################################################
  20
  21 . /etc/sysconfig/rc
  22 . $rc_functions
  23 . /etc/init.d/networking/functions.network
  24
  25 eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
  26
  27 dhcpcd_up()
  28 {
  29         set | grep "^new_" | sed "s|^new_||g" | \
  30         sort > /var/ipfire/dhcpc/dhcpcd-$interface.info
  31
  32         #Check if this was the Red device...
  33         if [ ! "$interface" == "$RED_DEV" ]; then
  34                 exit 0;
  35         fi
  36
  37         # Only if RED_TYPE=DHCP update /var/ipfire/red
  38         # Check if we have to restart the services at update
  39         [ ! -e "/var/ipfire/red/active" ] && update=1;
  40         if [ "$old_domain_name_service" != "$new_domain_name_service" ]; then
  41                 update=1;
  42         fi
  43         if [ "$old_ip_address" != "$new_ip_address" ]; then
  44                 update=1;
  45         fi
  46         if [ "$old_routers" != "$new_routers" ]; then
  47                 update=1;
  48         fi
  49
  50         # Get DNS from dhcp
  51         /etc/rc.d/helper/getdnsfromdhcpc.pl 1 > /var/run/dns1
  52         /etc/rc.d/helper/getdnsfromdhcpc.pl 2 > /var/run/dns2
  53
  54         #Get IP Address
  55         echo -n "$new_ip_address"  > /var/ipfire/red/local-ipaddress
  56
  57         # Get default gateway
  58         if [ -n "${new_routers}" ]; then
  59                 grep -v -E "\<gateway\>" /etc/hosts > /tmp/hosts
  60                 echo "$new_routers      gateway"  >> /tmp/hosts
  61                 mv /tmp/hosts /etc/hosts
  62         fi
  63
  64         if [ $update ]; then
  65                 [ -e "/var/ipfire/red/active" ] || touch /var/ipfire/red/active
  66                 echo -n "$new_routers" > /var/ipfire/red/remote-ipaddress
  67                 logger -p local0.info -t dhcpcd.exe[$$] "$interface has been (re)configured with IP=$new_ip_address"
  68                 run_subdir ${rc_base}/init.d/networking/red.up/
  69                 touch /var/ipfire/red/active
  70         fi
  71 }
  72
  73 dhcpcd_down()
  74 {
  75         set | grep "^new_" | sed "s|^new_||g" | \
  76         sort > /var/ipfire/dhcpc/dhcpcd-$interface.info
  77
  78         # Remove DNS servers
  79         rm -f /var/run/dns1 /var/run/dns2
  80
  81         # Only if RED_TYPE=DHCP update /var/ipfire/red
  82         if [ "$RED_TYPE" == "DHCP" ]; then
  83                 rm -f /var/ipfire/red/active
  84                 if [ ! $reason == "PREINIT" ]; then
  85                         logger -p local0.info -t dhcpcd.exe[$$] "${interface} has been brought down ($reason)"
  86                         run_subdir ${rc_base}/init.d/networking/red.down/
  87                 fi
  88         fi
  89
  90         # Remove any configured IP address from the device
  91         ip addr flush dev "${interface}" &>/dev/null
  92
  93         return 0
  94 }
  95
  96 # Called when dhcpcd relies on a third party to configure an IP address
  97 dhcpcd_3rdparty() {
  98         local qmi_device="$(qmi_find_device "${interface}")"
  99
 100         if [ -n "${qmi_device}" ]; then
 101                 setup_qmi "${qmi_device}" || return $?
 102         fi
 103
 104         return 0
 105 }
 106
 107 setup_qmi() {
 108         local device="${1}"
 109
 110         local address
 111         local netmask
 112         local gateway
 113         local mtu=1500
 114         local dns1
 115         local dns2
 116
 117         local line
 118         while read -r line; do
 119                 # Extract the value
 120                 value="${line#*: }"
 121
 122                 case "${line}" in
 123                         *IPv4\ address:*)
 124                                 address="${value}"
 125                                 ;;
 126                         *IPv4\ subnet\ mask:*)
 127                                 netmask="${value}"
 128                                 ;;
 129                         *IPv4\ gateway\ address:*)
 130                                 gateway="${value}"
 131                                 ;;
 132                         *IPv4\ primary\ DNS:*)
 133                                 dns1="${value}"
 134                                 ;;
 135                         *IPv4\ secondary\ DNS:*)
 136                                 dns2="${value}"
 137                                 ;;
 138                         *MTU:*)
 139                                 mtu="${value}"
 140                                 ;;
 141                 esac
 142         done <<< "$(qmicli --device="${device}" --wds-get-current-settings)"
 143
 144         if [ -z "${address}" ] || [ -z "${netmask}" ] || [ -z "${gateway}" ]; then
 145                 logger -p "local0.info" -t "dhcpcd.exe[$$]" \
 146                         "Could not retrieve all information from the QMI interface"
 147                 return 1
 148         fi
 149
 150         # Flush any previous configuration
 151         ip addr flush dev "${interface}"
 152
 153         # Configure the IP address
 154         ip addr add "${address}/${netmask}" dev "${interface}"
 155
 156         # Configure the default route
 157         if [ -n "${gateway}" ]; then
 158                 # Store the default gateway
 159                 echo -n "${gateway}" > /var/ipfire/red/remote-ipaddress
 160
 161                 # Configure the default route
 162                 ip route add default via "${gateway}" mtu "${mtu}"
 163         fi
 164
 165         # Store and DNS servers
 166         if [ -n "${dns1}" ]; then
 167                 echo -n "${dns1}" > /var/ipfire/red/dns1
 168         fi
 169         if [ -n "${dns2}" ]; then
 170                 echo n "${dns2}"  > /var/ipfire/red/dns2
 171         fi
 172
 173         return 0
 174 }
 175
 176 case "$reason" in
 177 BOUND|INFORM|REBIND|REBOOT|RENEW|TIMEOUT|STATIC)        dhcpcd_up;;
 178 PREINIT|EXPIRE|FAIL|IPV4LL|NAK|RELEASE|STOP)            dhcpcd_down;;
 179 3RDPARTY)
 180         dhcpcd_3rdparty
 181         ;;
 182 *)
 183         logger -p "local0.info" -t "dhcpcd.exe[$$]" "Unhandled DHCP event: ${reason}"
 184         ;;
 185 esac