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 [ $update ]; then
  65                 [ -e "/var/ipfire/red/active" ] || touch /var/ipfire/red/active
  66
  67                 if [ -n "${new_routers}" ]; then
  68                         echo -n "${new_routers}" > /var/ipfire/red/remote-ipaddress
  69                 fi
  70
  71                 logger -p local0.info -t dhcpcd.exe[$$] "$interface has been (re)configured with IP=$new_ip_address"
  72                 run_subdir ${rc_base}/init.d/networking/red.up/
  73                 touch /var/ipfire/red/active
  74         fi
  75 }
  76
  77 dhcpcd_down()
  78 {
  79         set | grep "^new_" | sed "s|^new_||g" | \
  80         sort > /var/ipfire/dhcpc/dhcpcd-$interface.info
  81
  82         # Remove DNS servers
  83         rm -f /var/run/dns1 /var/run/dns2
  84
  85         # Only if RED_TYPE=DHCP update /var/ipfire/red
  86         if [ "$RED_TYPE" == "DHCP" ]; then
  87                 rm -f /var/ipfire/red/active
  88                 if [ ! $reason == "PREINIT" ]; then
  89                         logger -p local0.info -t dhcpcd.exe[$$] "${interface} has been brought down ($reason)"
  90                         run_subdir ${rc_base}/init.d/networking/red.down/
  91                 fi
  92         fi
  93
  94         # Remove any configured IP address from the device
  95         ip addr flush dev "${interface}" &>/dev/null
  96
  97         return 0
  98 }
  99
 100 # Called when dhcpcd relies on a third party to configure an IP address
 101 dhcpcd_3rdparty() {
 102         local qmi_device="$(qmi_find_device "${interface}")"
 103
 104         if [ -n "${qmi_device}" ]; then
 105                 setup_qmi "${qmi_device}" || return $?
 106         fi
 107
 108         return 0
 109 }
 110
 111 setup_qmi() {
 112         local device="${1}"
 113
 114         local address
 115         local netmask
 116         local gateway
 117         local mtu=1500
 118         local dns1
 119         local dns2
 120
 121         local line
 122         while read -r line; do
 123                 # Extract the value
 124                 value="${line#*: }"
 125
 126                 case "${line}" in
 127                         *IPv4\ address:*)
 128                                 address="${value}"
 129                                 ;;
 130                         *IPv4\ subnet\ mask:*)
 131                                 netmask="${value}"
 132                                 ;;
 133                         *IPv4\ gateway\ address:*)
 134                                 gateway="${value}"
 135                                 ;;
 136                         *IPv4\ primary\ DNS:*)
 137                                 dns1="${value}"
 138                                 ;;
 139                         *IPv4\ secondary\ DNS:*)
 140                                 dns2="${value}"
 141                                 ;;
 142                         *MTU:*)
 143                                 mtu="${value}"
 144                                 ;;
 145                 esac
 146         done <<< "$(qmicli --device="${device}" --wds-get-current-settings)"
 147
 148         if [ -z "${address}" ] || [ -z "${netmask}" ] || [ -z "${gateway}" ]; then
 149                 logger -p "local0.info" -t "dhcpcd.exe[$$]" \
 150                         "Could not retrieve all information from the QMI interface"
 151                 return 1
 152         fi
 153
 154         # Flush any previous configuration
 155         ip addr flush dev "${interface}"
 156
 157         # Configure the IP address
 158         ip addr add "${address}/${netmask}" dev "${interface}"
 159
 160         # Configure the default route
 161         if [ -n "${gateway}" ]; then
 162                 # Store the default gateway
 163                 echo -n "${gateway}" > /var/ipfire/red/remote-ipaddress
 164
 165                 # Configure the default route
 166                 ip route add default via "${gateway}" mtu "${mtu}"
 167         fi
 168
 169         # Store and DNS servers
 170         if [ -n "${dns1}" ]; then
 171                 echo -n "${dns1}" > /var/ipfire/red/dns1
 172         fi
 173         if [ -n "${dns2}" ]; then
 174                 echo n "${dns2}"  > /var/ipfire/red/dns2
 175         fi
 176
 177         return 0
 178 }
 179
 180 case "$reason" in
 181 BOUND|INFORM|REBIND|REBOOT|RENEW|TIMEOUT|STATIC)        dhcpcd_up;;
 182 PREINIT|EXPIRE|FAIL|IPV4LL|NAK|RELEASE|STOP)            dhcpcd_down;;
 183 3RDPARTY)
 184         dhcpcd_3rdparty
 185         ;;
 186 *)
 187         logger -p "local0.info" -t "dhcpcd.exe[$$]" "Unhandled DHCP event: ${reason}"
 188         ;;
 189 esac