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add fallback_routes support to network scripts

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Add support for optional fallback_routes_* variables in the network scripts.
This is similar to the fallback_route_* support in baselayout-1.
However, if you do not have fallback_routes set for an interface but you
do have routes set, that setting will be used, so you do not need this
variable unless you want the fallback routes to be different from the
primary routes.

X-Gentoo-Bug: 250978
X-Gentoo-Bug-URL: http://bugs.gentoo.org/show_bug.cgi?id=250978
This commit is contained in:
William Hubbs 2011-04-09 13:54:01 -05:00
parent 07db27d220
commit 15660dbbfc
3 changed files with 15 additions and 5 deletions
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4
doc/net.example.BSD.in
View File

@ -67,10 +67,12 @@
# If a specified module fails (like dhcp - see below), you can specify a
# fallback like so
#fallback_eth0="192.168.0.2 netmask 255.255.255.0"
#fallback_route_eth0="default via 192.168.0.1"
#fallback_routes_eth0="default via 192.168.0.1"
# NOTE: fallback entry must match the entry location in config_eth0
# As such you can only have one fallback route.
# Also, if you do not set a fallback_routes entry for an interface, the
# routes entry will be used if that is set.
# Some users may need to alter the MTU - here's how
#mtu_eth0="1500"

4
doc/net.example.Linux.in
View File

@ -94,10 +94,12 @@
# If a specified module fails (like dhcp - see below), you can specify a
# fallback like so
#fallback_eth0="192.168.0.2/24"
#fallback_route_eth0="default via 192.168.0.1"
#fallback_routes_eth0="default via 192.168.0.1"
# NOTE: fallback entry must match the entry location in config_eth0
# As such you can only have one fallback route.
# Also, if you do not set a fallback_routes entry for an interface, the
# routes entry will be used if that is set.
# Some users may need to alter the MTU - here's how
#mtu_eth0="1500"

12
init.d/net.lo.in
View File

@ -476,7 +476,7 @@ interface_down()
start()
{
local IFACE=${RC_SVCNAME#*.} oneworked=false module=
local IFACE=${RC_SVCNAME#*.} oneworked=false fallback=false module=
local IFVAR=$(shell_var "${IFACE}") cmd= our_metric=
local metric=0
@ -563,6 +563,7 @@ start()
else
eval config=\$fallback_${config_index}
if [ -n "${config}" ]; then
fallback=true
eoutdent
ewarn "Trying fallback configuration ${config}"
eindent
@ -585,8 +586,13 @@ start()
return 1
fi
local hidefirstroute=false first=true
local routes="$(_get_array "routes_${IFVAR}")"
local hidefirstroute=false first=true routes=
if ${fallback}; then
routes="$(_get_array "fallback_routes_${IFVAR}")"
fi
if [ -z "${routes}" ]; then
routes="$(_get_array "routes_${IFVAR}")"
fi
if [ "${IFACE}" = "lo" -o "${IFACE}" = "lo0" ]; then
if [ "${config_0}" != "null" ]; then
routes="127.0.0.0/8 via 127.0.0.1