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netifd: add support for suppressing the DHCP request hostname by setting it to *

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dnsmasq (and probably other DHCP servers as well) does not like to hand out
leases with duplicate host names.
Adding support for skipping the hostname makes it easier to deploy setups
where it is not guaranteed to be unique

Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry picked from commit fd8ca8deb3197a2867d85fc3513f5aa70912ee40)
This commit is contained in:
Felix Fietkau 2019-03-13 12:45:13 +01:00 committed by Jo-Philipp Wich
parent c3337e8f48
commit 2152722bd3
1 changed files with 2 additions and 0 deletions
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package/network/config/netifd/files/lib/netifd/proto/dhcp.sh
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@ -46,6 +46,8 @@ proto_dhcp_setup() {
json_for_each_item proto_dhcp_add_sendopts sendopts dhcpopts
[ -z "$hostname" ] && hostname="$(cat /proc/sys/kernel/hostname)"
[ "$hostname" = "*" ] && hostname=
[ "$defaultreqopts" = 0 ] && defaultreqopts="-o" || defaultreqopts=
[ "$broadcast" = 1 ] && broadcast="-B" || broadcast=
[ "$release" = 1 ] && release="-R" || release=