From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexey Brodkin Date: Mon, 8 Apr 2019 14:00:10 +0300 Subject: [Buildroot] [PATCH] busybox: Enable domain search list support in udhcpc Message-ID: <20190408110010.2596-1-abrodkin@synopsys.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net This is useful in networks with internal resources as it allows to use much shorter names. E.g. instead of "server.internal.company.com" it's possible to use just "server" if DHCP server is configured with: ---------------------------->8----------------------- option domain-search "internal.company.com"; ---------------------------->8----------------------- This improvement consists of 2 parts: 1. Enable handling of RFC3397 so DHCP client is ready for processing corresponding data from DHCP server. 2. Some DHCP servers always send out search list if it is set in server's configuration and some servers only provide search list if client asks for that (sending list of options it expectes to get). And exactly for those stubborn DHCP servers we need to add "-O search" to udhcp's command line via CONFIG_IFUPDOWN_UDHCPC_CMD_OPTIONS. Signed-off-by: Alexey Brodkin Cc: Ignacy Gawedzki Cc: Peter Korsgaard --- package/busybox/busybox.config | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/package/busybox/busybox.config b/package/busybox/busybox.config index 1d9560d655..ab04854c83 100644 --- a/package/busybox/busybox.config +++ b/package/busybox/busybox.config @@ -967,9 +967,9 @@ CONFIG_UDHCPC_DEFAULT_SCRIPT="/usr/share/udhcpc/default.script" # CONFIG_FEATURE_UDHCP_PORT is not set CONFIG_UDHCP_DEBUG=0 CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS=80 -# CONFIG_FEATURE_UDHCP_RFC3397 is not set +CONFIG_FEATURE_UDHCP_RFC3397=y CONFIG_FEATURE_UDHCP_8021Q=y -CONFIG_IFUPDOWN_UDHCPC_CMD_OPTIONS="-R -n" +CONFIG_IFUPDOWN_UDHCPC_CMD_OPTIONS="-R -n -O search" # # Print Utilities -- 2.16.2