blob: a1966d5097c88db32d6914ac21d4e45b1bfd2ee7 (
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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
#!/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)
vconfig() {
LC_ALL=C /sbin/vconfig "$@"
}
# char* vlan_provides(void)
#
# Returns a string to change module definition for starting up
vlan_provides() {
echo "vlan"
}
# void vlan_depend(void)
#
# Sets up the dependancies for the module
vlan_depend() {
after interface
before dhcp arping
}
# bool vlan_check_installed(void)
#
# Returns 1 if vconfig is installed, otherwise 0
vlan_check_installed() {
[[ -x /sbin/vconfig ]] && return 0
${1:-false} && eerror "For VLAN (802.1q) support, emerge net-misc/vconfig"
return 1
}
# bool vlan_check_depends(void)
#
# Checks to see if we have the needed functions
vlan_check_depends() {
local f
for f in iface_start iface_stop; do
[[ $( type -t "${f}" ) == function ]] && continue
eerror "vlan: missing required function ${f}\n"
return 1
done
return 0
}
# char* vlan_get_vars(char *interface)
#
# Returns a string spaced with possible user set
# configuration variables
vlan_get_vars() {
echo "vlans_$1 iface_$1_vlans"
}
# char* vlan_get_vlans(char *interface)
#
# Fetch the configured vlans for an interface. Outputs a space
# separated list on stdout. For example "eth0.1 eth0.2 eth0.3"
vlan_get_vlans() {
sed -n -e 's/^\(.*[0-9]\) \(.* \) .*'"$1"'$/\1/p' \
/proc/net/vlan/config 2>/dev/null
}
# bool vlan_check_kernel(void)
#
# Checks to see if the 802.1q module is present - if not try and load it
# Returns 1 if there is a problem
vlan_check_kernel() {
[[ -d /proc/net/vlan ]] && return 0
/sbin/modprobe 8021q &>/dev/null
[[ -d /proc/net/vlan ]] && return 0
eerror "VLAN (802.1q) support is not present in this kernel"
return 1
}
#bool vlan_pre_start(char *iface)
#
# Setup vconfig
vlan_pre_start() {
local iface="$1" opts i x e ifvar=$( bash_variable "$1" )
eval opts=( \"\$\{vconfig_${ifvar}\[@\]\}\" )
[[ -z ${opts} ]] && return 0
vlan_check_kernel || return 1
interface_exists "${iface}" || return 1
for (( i=0; i<${#opts[@]}; i++ )); do
if [[ ${opts[i]} == "set_name_type "* ]]; then
x="${opts[i]}"
else
x="${opts[i]/ / ${iface} }"
[[ ${x} == "${opts[i]}" ]] && x="${x} ${iface}"
fi
e=$( vconfig ${x} 2>&1 1>/dev/null )
[[ -z ${e} ]] && continue
eerror "vconfig ${x}"
eerror "${e}"
return 1
done
return 0
}
# bool vlan_post_start(char *iface)
#
# Starts VLANs for a given interface
#
# Always returns 0 (true)
vlan_post_start() {
local iface="$1" vlan vlans vlans_old e ifname ifvar=$( bash_variable "$1" )
eval vlans=\"\$\{vlans_${ifvar}\}\"
# BACKWARD COMPATIBILITY: check for old vlan variable name
eval vlans_old=\"\$\{iface_${ifvar}_vlans\}\"
[[ -n ${vlans_old} && -z ${vlans} ]] && vlans="${vlans_old}"
[[ -z ${vlans} ]] && return 0
vlan_check_kernel || return 1
interface_exists "${iface}" true || return 1
# Start vlans for this interface
for vlan in ${vlans}; do
einfo "Adding VLAN ${vlan} to ${iface}"
e=$( vconfig add "${iface}" "${vlan}" 2>&1 1>/dev/null )
if [[ -n ${e} ]] ; then
eend 1 "${e}"
continue
fi
eend 0
# We need to work out the interface name of our new vlan id
ifname=$( \
sed -n -e 's/^\([^ \t]*\) *| '"${vlan}"' *| .*'"${iface}"'$/\1/p' \
/proc/net/vlan/config
)
iface_start "${ifname}"
done
return 0
}
# bool vlan_pre_stop(char *iface)
#
# Stops VLANs for a given interface
#
# Always returns 0 (true)
vlan_pre_stop() {
local iface="$1" vlan
vlan_check_installed || return 0
for vlan in $( vlan_get_vlans "${iface}" ); do
einfo "Removing VLAN ${vlan##*.} from ${iface}"
iface_stop "${vlan}"
vconfig rem "${vlan}" >/dev/null
done
return 0
}
# vim:ts=4
|
GitWeb