/[baselayout]/trunk/net.Linux/bonding.sh
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Contents of /trunk/net.Linux/bonding.sh

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Revision 2547 - (hide annotations) (download) (as text)
Thu Apr 5 11:18:42 2007 UTC (11 years, 2 months ago) by uberlord
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    Rewrite the core parts in C. We now provide librc so other programs can
    query runlevels, services and state without using bash. We also provide
    libeinfo so other programs can easily use our informational functions.

    As such, we have dropped the requirement of using bash as the init script
    shell. We now use /bin/sh and have strived to make the scripts as portable
    as possible. Shells that work are bash and dash. busybox works provided
    you disable s-s-d. If you have WIPE_TMP set to yes in conf.d/bootmisc you
    should disable find too.
    zsh and ksh do not work at this time.

    Networking support is currently being re-vamped also as it was heavily bash
    array based. As such, a new config format is available like so
    config_eth0="1.2.3.4/24 5.6.7.8/16"
    or like so
    config_eth0="'1.2.3.4 netmask 255.255.255.0' '5.6.7.8 netmask 255.255.0.0'"

    We will still support the old bash array format provided that /bin/sh IS
    a link it bash.

    ChangeLog for baselayout-1 can be found in our SVN repo.
1 uberlord 2547 # Copyright 2004-2007 Gentoo Foundation
2     # Distributed under the terms of the GNU General Public License v2
3    
4     bonding_depend() {
5     before interface macchanger
6     program /sbin/ifenslave
7     }
8    
9     _config_vars="$_config_vars slaves"
10    
11     _is_bond() {
12     [ -f "/proc/net/bonding/${IFACE}" ]
13     }
14    
15     bonding_pre_start() {
16     local s= slaves=
17    
18     eval $(_get_array "slaves_${IFACE}")
19     [ $# = "0" ] && return 0
20    
21     # Load the kernel module if required
22     if [ ! -d /proc/net/bonding ] ; then
23     if ! modprobe bonding ; then
24     eerror "Cannot load the bonding module"
25     return 1
26     fi
27     fi
28    
29     # We can create the interface name we like now, but this
30     # requires sysfs
31     if ! _exists && [ -d /sys/class/net ] ; then
32     echo "+${IFACE}" > /sys/class/net/bonding_masters
33     fi
34     _exists true || return 1
35    
36     if ! _is_bond ; then
37     eerror "${IFACE} is not capable of bonding"
38     return 1
39     fi
40    
41     ebegin "Adding slaves to ${IFACE}"
42     eindent
43     einfo "$@"
44    
45     # Check that our slaves exist
46     (
47     for IFACE in "$@" ; do
48     _exists true || return 1
49     done
50    
51     # Must force the slaves to a particular state before adding them
52     for IFACE in "$@" ; do
53     _delete_addresses
54     _up
55     done
56     )
57    
58     # now force the master to up
59     _up
60    
61     # finally add in slaves
62     eoutdent
63     /sbin/ifenslave "${IFACE}" $@ >/dev/null
64     eend $?
65    
66     return 0 #important
67     }
68    
69     bonding_stop() {
70     _is_bond || return 0
71    
72     local slaves= s=
73     slaves=$( \
74     sed -n -e 's/^Slave Interface: //p' "/proc/net/bonding/${IFACE}" \
75     | tr '\n' ' ' \
76     )
77     [ -z "${slaves}" ] && return 0
78    
79     # remove all slaves
80     ebegin "Removing slaves from ${IFACE}"
81     eindent
82     einfo "${slaves}"
83     eoutdent
84     /sbin/ifenslave -d "${IFACE}" ${slaves}
85    
86     # reset all slaves
87     (
88     for IFACE in ${slaves}; do
89     if _exists ; then
90     _delete_addresses
91     _down
92     fi
93     done
94     )
95    
96     eend 0
97     return 0
98     }
99    
100     # vim: set ts=4 :

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