blob: c37ae912e90dbe84b1b4eee2db158d967692d2da (
plain)
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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
#!/bin/bash
# Copyright (c) 2004-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# Contributed by Roy Marples (uberlord@gentoo.org)
# Fix any potential localisation problems
# Note that LC_ALL trumps LC_anything_else according to locale(7)
openvpn() {
LC_ALL=C /usr/sbin/openvpn "$@"
}
tunctl() {
LC_ALL=C /usr/bin/tunctl "$@"
}
# void tuntap_depend(void)
#
# Sets up the dependancies for the module
tuntap_depend() {
before interface macchanger
functions interface_exists interface_type
variables tunctl
}
# bool tuntap_check_installed(void)
#
# Returns 1 if tuntap is installed, otherwise 0
tuntap_check_installed() {
[[ -x /usr/sbin/openvpn ]] && return 0
[[ -x /usr/bin/tunctl ]] && return 0
${1:-false} && eerror "For TunTap support, emerge net-misc/openvpn or sys-apps/usermode-utilities"
return 1
}
# bool tuntap_check_kernel(void)
#
# Checks to see if the tun is present - if not try and load it
# Returns 1 if there is a problem
tuntap_check_kernel() {
[[ -a /dev/net/tun ]] && return 0
/sbin/modprobe tun && sleep 1
[[ -a /dev/net/tun ]] && return 0
eerror "TUN/TAP support is not present in this kernel"
return 1
}
# bool tuntap_exists(char *interface)
#
# Returns 0 if the tun/tap interface exists, otherwise 1
tuntap_exists() {
local itype="$(interface_type "$1")"
[[ ${itype} != "tun" && ${itype} != "tap" ]] && return 1
interface_exists "$1"
}
# bool tuntap_pre_start(char *iface)
#
# Create the device, give it the right perms
tuntap_pre_start() {
local iface="$1" itype="$(interface_type "$1")"
# Check that we are a valid tun/tap interface
# NOTE - the name can be anything as we define it
# but for simplicity in the config we require either
# tun or tap
[[ ${itype} != "tun" && ${itype} != "tap" ]] && return 0
tuntap_check_kernel || return 1
ebegin "Creating Tun/Tap interface ${iface}"
if [[ -x /usr/sbin/openvpn ]] ; then
openvpn --mktun --dev "${iface}" >/dev/null
else
local ifvar="$(bash_variable "${iface}")"
local opts="tunctl_${ifvar}"
tunctl ${!opts} -t "${iface}" >/dev/null
fi
eend $?
}
# bool tuntap_stop(char *iface)
#
# Removes the device
tuntap_stop() {
local iface="$1"
tuntap_check_installed || return 0
tuntap_exists "${iface}" || return 0
ebegin "Destroying Tun/Tap interface ${iface}"
if [[ -x /usr/sbin/openvpn ]] ; then
openvpn --rmtun --dev "${iface}" >/dev/null
else
tunctl -d "${fiace}" >/dev/null
fi
eend $?
}
# vim:ts=4
|
GitWeb