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#!/bin/bash
# Authors: Steven Shiau <steven _at_ clonezilla org>, Ceasar Sun <ceasar _at_ nchc org tw>
# License: GPL
# Load DRBL setting and functions
DRBL_SCRIPT_PATH="${DRBL_SCRIPT_PATH:-/usr/share/drbl}"
. $DRBL_SCRIPT_PATH/sbin/drbl-conf-functions
# alias level
#ip_alias_list="0 1 2 3 4 5"
usage() {
echo "Usage:"
echo "To get the up network devices or IP address:"
echo "`basename $0` [OPTION]"
echo " Options:"
echo " -c, --drbl-client-eth-port: Show the eth ports connected to DRBL clients (Used in DRBL server)"
echo " -b, --drbl-client-ip: Show the IP addresses connected to DRBL clients (Used in DRBL server)"
echo " -d, --all-net-dev: Show only the up network devices, including alias IP address device."
echo " -p, --public-ip-port: Show only the public IP address ethernet port."
echo " -t, --private-ip-port: Show only the private IP address ethernet port."
echo " -a, --public-ip-address: Show only the public IP address."
echo " -r, --private-ip-address: Show only the private IP address."
echo " -i, --all-ip-address: Show all the IP addresses."
echo " -g, --gateway-ip-add: Show the gateway IP address"
echo " -u, --uplink-eth-port: Show the uplink eth port (Used in DRBL server)"
echo " -v, --verbose prints out verbose information"
}
#
get_uplink_and_client_eth_port() {
uplink_eth_port="$(LC_ALL=C route -n | awk '/^0.0.0.0/ {print $8}' | sort | head -n 1)"
# //NOTE// what if ${NETDEV[@]:0} is "eth0 eth0:1", then
# cat "eth0 eth0:1" | sed -e "s/eth0//g"
# will give eth_ports_for_drbl_clients=":1". WRONG!
# //WRONG// eth_ports_for_drbl_clients="$(echo ${NETDEV[@]:0} | sed -e "s/$uplink_eth_port//g")"
eth_ports_for_drbl_clients=
for i in ${NETDEV[@]:0}; do
# Exclude $uplink_eth_port
[ "$i" = "$uplink_eth_port" ] && continue
eth_ports_for_drbl_clients="$eth_ports_for_drbl_clients $i"
done
if [ -z "$eth_ports_for_drbl_clients" ]; then
# If by the above method eth_ports_for_drbl_clients is nothing, then the server must be with only 1 NIC.
eth_ports_for_drbl_clients="$uplink_eth_port"
fi
gateway_IP_addr="$(LC_ALL=C route -n | awk '/^0.0.0.0/ {print $2}' | sort | head -n 1)"
} # end of get_uplink_and_client_eth_port
show_mode=""
# Parse command-line options
while [ $# -gt 0 ]; do
case "$1" in
-a|--public-ip-address) shift; show_mode="public_ip_address" ;;
-d|--all-net-dev) shift; show_mode="all_net_dev" ;;
-i|--all-ip-address) shift; show_mode="all_ip_address" ;;
-p|--public-ip-port) shift; show_mode="public_ip_eth_port" ;;
-r|--private-ip-address) shift; show_mode="private_ip_address" ;;
-t|--private-ip-port) shift; show_mode="private_ip_eth_port" ;;
-u|--uplink-eth-port) shift; show_mode="uplink_eth_port" ;;
-g|--gateway-ip-add) shift; show_mode="gateway_ip_address" ;;
-c|--drbl-client-eth-port) shift; show_mode="drbl_client_eth_port" ;;
-b|--drbl-client-ip) shift; show_mode="drbl_client_ip" ;;
-v|--verbose) shift; VERBOSE="on" ;;
-*) echo "${0}: ${1}: invalid option" >&2
usage >& 2
exit 2 ;;
*) break ;;
esac
done
#NDVS="$(get-nic-devs)"
# For physical NIC, the format is like:
# eth0 Link encap:Ethernet HWaddr 00:11:aa:bb:cc:dd
# For ppp0 NIC, it's like:
# ppp0 Link encap:Point-to-Point Protocol
# Ref: http://sourceforge.net/projects/drbl/forums/forum/394008/topic/3855959
# For Fedora 17, the output of "ifconfig -a" is like (//Note// An extra ":"):
# eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
# inet 192.168.120.192 netmask 255.255.255.0 broadcast 192.168.120.255
# inet6 fe80::20c:29ff:fe97:5d0f prefixlen 64 scopeid 0x20<link>
# ether 00:0c:29:97:5d:0f txqueuelen 1000 (Ethernet)
# RX packets 1998 bytes 179313 (175.1 KiB)
# RX errors 0 dropped 0 overruns 0 frame 0
# TX packets 1305 bytes 198243 (193.5 KiB)
# TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
# //NOTE// for alias NIC, it's like:
# For traditional one (e.g. Ubuntu 12.10):
# eth1:1 Link encap:Ethernet HWaddr 00:0c:29:12:72:60
# inet addr:192.168.37.254 Bcast:192.168.37.255 Mask:255.255.255.0
# UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
# For Fedora 17:
# eth1:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
# inet 192.168.61.254 netmask 255.255.255.0 broadcast 192.168.61.255
# ether 00:0c:29:e9:f2:4e txqueuelen 1000 (Ethernet)
# device interrupt 16 base 0x2080
# Therefore we have to put [[:space:]]+ after ^[[:alnum:]]+[[:digit:]]+\:.
NDVS="$(LC_ALL=C ifconfig -a | grep -iE '(HWaddr|encap:Point-to-Point Protocol)'| awk -F' ' '{print $1}')"
#NDVS="$NDVS $(LC_ALL=C ifconfig -a | grep -iE '(^[[:alnum:]]+[[:digit:]]+(:[[:digit:]]+|)\:[[:space:]]+)'| awk -F': ' '{print $1}')"
NDVS="$NDVS $(LC_ALL=C get-nic-devs | xargs echo)"
# Exclude some device if it's assigned in drbl.conf.
if [ -n "$exclude_eth_nics" ]; then
for exn in $exclude_eth_nics; do
NDVS="$(LC_ALL=C echo $NDVS | sed -r -e "s/\b$exn\b//g")"
done
fi
#
i=0
for idev in $NDVS; do
# physical network device IP
IP="$(LC_ALL=C drbl-get-ipadd $idev)"
if [ -n "$IP" ]; then
i=$((i+1))
NETDEV[$i]="$idev"
IPADDRS[$i]="$IP"
fi
# try alias IP
#for id in $ip_alias_list; do
# IP="$(drbl-get-ipadd $idev:$id)"
# if [ -n "$IP" ]; then
# i=$((i+1))
# NETDEV[$i]="$idev:$id"
# IPADDRS[$i]="$IP"
# fi
#done
done
imax=$i
# found the public IP and ethx
i=0
public_IP_port=
public_IP_addr=
private_IP_port=
private_IP_addr=
while [ $i -le $imax ]; do
i=$((i+1))
if [ -n "$(echo ${IPADDRS[$i]} | grep -vE "^(192.168\..*|172\.(1[6-9]|2[0-9]|3[01])\..*|10\..*)")" ]; then
public_IP_port="$public_IP_port ${NETDEV[$i]}"
public_IP_addr="$public_IP_addr ${IPADDRS[$i]}"
else
private_IP_port="$private_IP_port ${NETDEV[$i]}"
private_IP_addr="$private_IP_addr ${IPADDRS[$i]}"
fi
done
# Find the uplink ethernet port. This is only useful in DRBL server
case "$show_mode" in
uplink_eth_port|drbl_client_eth_port|gateway_ip_address) get_uplink_and_client_eth_port ;;
drbl_client_ip)
get_uplink_and_client_eth_port
drbl_client_ip=""
for idev in $eth_ports_for_drbl_clients; do
IP="$(LC_ALL=C drbl-get-ipadd $idev)"
[ -n "$IP" ] && drbl_client_ip="$drbl_client_ip $IP"
done
;;
esac
case "$show_mode" in
all_ip_address) echo ${IPADDRS[@]:0} ;;
all_net_dev) echo ${NETDEV[@]:0} ;;
public_ip_address) echo $public_IP_addr ;;
public_ip_eth_port) echo $public_IP_port ;;
private_ip_address) echo $private_IP_addr ;;
private_ip_eth_port) echo $private_IP_port ;;
uplink_eth_port) echo $uplink_eth_port ;;
drbl_client_eth_port) echo $eth_ports_for_drbl_clients ;;
drbl_client_ip) echo $drbl_client_ip ;;
gateway_ip_address) echo $gateway_IP_addr ;;
esac
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