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dnsmasq: make the check for existing DHCP servers more reliable

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If there is no carrier yet, wait for 2 seconds (STP forwarding delay)

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2016-07-29 14:26:55 +02:00
parent 712b6fdc5c
commit 6916ca8d33
1 changed files with 6 additions and 0 deletions
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6
package/network/services/dnsmasq/files/dnsmasq.init
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@ -64,6 +64,12 @@ dhcp_check() {
[ -s "$stamp" ] && return $(cat "$stamp") [ -s "$stamp" ] && return $(cat "$stamp")
# If there's no carrier yet, skip this interface.
# The init script will be called again once the link is up
case "$(devstatus "$ifname" | jsonfilter -e @.carrier)" in
false) return 1;;
esac
udhcpc -n -q -s /bin/true -t 1 -i "$ifname" >&- && rv=1 || rv=0 udhcpc -n -q -s /bin/true -t 1 -i "$ifname" >&- && rv=1 || rv=0
[ $rv -eq 1 ] && \ [ $rv -eq 1 ] && \