blob: 0eed609d4b8203d538adba0378450444a9f21910 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
#!/bin/bash
# Copyright (c) 2005-2010 OpenVPN Technologies, Inc.
# Licensed under the GPL version 2
# First version by Jesse Adelman
# someone at boldandbusted dink com
# http://www.boldandbusted.com/
# PURPOSE: This script automatically sets the proper /etc/resolv.conf entries
# as pulled down from an OpenVPN server.
# INSTALL NOTES:
# Place this in /etc/openvpn/client.up
# Then, add the following to your /etc/openvpn/<clientconfig>.conf:
# client
# pull dhcp-options
# up /etc/openvpn/client.up
# Next, "chmod a+x /etc/openvpn/client.up"
# USAGE NOTES:
# Note that this script is best served with the companion "client.down"
# script.
# Only tested on Gentoo Linux 2005.0 with OpenVPN 2.0
# It should work with any GNU/Linux with /etc/resolv.conf
# This runs with the context of the OpenVPN UID/GID
# at the time of execution. This generally means that
# the client "up" script will run fine, but the "down" script
# will require the use of the OpenVPN "down-root" plugin
# which is in the plugins/ directory of the OpenVPN source tree
# A horrid work around, from a security perspective,
# is to run OpenVPN as root. THIS IS NOT RECOMMENDED. You have
# been WARNED.
# init variables
i=1
j=1
unset fopt
unset dns
unset opt
# Convert ENVs to an array
while fopt=foreign_option_$i; [ -n "${!fopt}" ]; do
{
opt[i-1]=${!fopt}
case ${opt[i-1]} in
*DOMAIN* ) domain=`echo ${opt[i-1]} | \
sed -e 's/dhcp-option DOMAIN //g'` ;;
*DNS* ) dns[j-1]=`echo ${opt[i-1]} | \
sed -e 's/dhcp-option DNS //g'`
let j++ ;;
esac
let i++
}
done
# Now, do the work
if [ -n "${dns[*]}" ]; then
for i in "${dns[@]}"; do
sed -i -e "1,1 i nameserver ${i}" /etc/resolv.conf || die
done
fi
if [ -n "${domain}" ]; then
sed -i -e "$j,1 i search ${domain}" /etc/resolv.conf || die
fi
# all done...
exit 0
|
