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net/ifconfig, net/iproute2: admin/oper state check functions

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Provide consistent methods using iproute2/ifconfig to check operational
and administrative up/down state of interfaces. This is not the same as
ethtool's "Link detected" field, which is the state of the layer 2
medium.

TODO: How to check operational state in BSD?

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
This commit is contained in:
Robin H. Johnson 2011-12-12 18:48:11 -08:00
parent dd45506a40
commit 2569eb644e
3 changed files with 66 additions and 0 deletions
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20
net/ifconfig.sh.BSD.in
View File

@ -242,3 +242,23 @@ ifconfig_post_start()
eend 0
fi
}
# Is the interface administratively/operationally up?
# The 'UP' status in ifconfig is the administrative status
# Operational state does not seem to be available in BSD?
# 0: up
# 1: down
# 2: invalid arguments
is_admin_up()
{
local iface="$1"
[ -z "$iface" ] && iface="$IFACE"
ifconfig "${iface}" | \
sed -n '1,1{ /flags=.*[<,]UP[,>]/{ q 0 }}; q 1; '
}
is_oper_up()
{
eerror "TODO: is_oper_up not available on BSD"
return 2
}

23
net/ifconfig.sh.Linux.in
View File

@ -297,3 +297,26 @@ ifconfig_post_stop()
iptunnel del "${IFACE}"
eend $?
}
# Is the interface administratively/operationally up?
# The 'UP' status in ifconfig/iproute2 is the administrative status
# Operational state is available in iproute2 output as 'state UP', or the
# operstate sysfs variable.
# 0: up
# 1: down
# 2: invalid arguments
is_admin_up()
{
local iface="$1"
[ -z "$iface" ] && iface="$IFACE"
ifconfig "${iface}" | \
sed -n '1,1{ /flags=.*[<,]UP[,>]/{ q 0 }}; q 1; '
}
is_oper_up()
{
local iface="$1"
[ -z "$iface" ] && iface="$IFACE"
read state </sys/class/net/"${iface}"/operstate
[ "x$state" = "up" ]
}

23
net/iproute2.sh
View File

@ -327,3 +327,26 @@ iproute2_post_stop()
fi
fi
}
# Is the interface administratively/operationally up?
# The 'UP' status in ifconfig/iproute2 is the administrative status
# Operational state is available in iproute2 output as 'state UP', or the
# operstate sysfs variable.
# 0: up
# 1: down
# 2: invalid arguments
is_admin_up()
{
local iface="$1"
[ -z "$iface" ] && iface="$IFACE"
ip link show dev $iface | \
sed -n '1,1{ /[<,]UP[,>]/{ q 0 }}; q 1; '
}
is_oper_up()
{
local iface="$1"
[ -z "$iface" ] && iface="$IFACE"
read state </sys/class/net/"${iface}"/operstate
[ "x$state" = "up" ]
}