Russell Senior 1c461df70a udhcpc: ignore zero-length DHCP options ... Discovered that the DHCP server on a TrendNet router (unknown model) provides a zero-length option 12 (Host Name) in the DHCP ACK message. This has the effect of causing udhcpc to drop the rest of the options, including option 51 (IP Address Lease Time), 3 (Router), and 6 (Domain Name Server), most importantly leaving the OpenWrt device with no default gateway. The TrendNet behavior violates RFC 2132, which in Section 3.14 declares that option 12 has a minimum length of 1 octet. It is perhaps not a cosmic coincidence that I found this behavior on Pi Day. This patch allows zero length options without bailing out, by simply skipping them. function old new delta udhcp_scan_options 183 172 -11 Signed-off-by: Russell Senior <russell@personaltelco.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>		2021-03-16 11:40:19 +01:00
..
arpping.c
common.c	udhcpc: ignore zero-length DHCP options	2021-03-16 11:40:19 +01:00
common.h
Config.src	udhcpc: Add support to change default interface name	2021-01-01 19:08:28 +01:00
d6_common.h	udhcpc6: code shrink - sending functions do not need ifindex parameter	2020-12-15 21:55:15 +01:00
d6_dhcpc.c	udhcp: reuse strings	2021-02-21 16:32:07 +01:00
d6_packet.c	udhcpc6: code shrink - sending functions do not need ifindex parameter	2020-12-15 21:55:15 +01:00
d6_socket.c
dhcpc.c	udhcp: reuse strings	2021-02-21 16:32:07 +01:00
dhcpc.h
dhcpd.c	udhcp: reuse strings	2021-02-21 16:32:07 +01:00
dhcpd.h
dhcprelay.c
domain_codec.c
dumpleases.c	libbb: introduce and use fputs_stdout	2021-02-03 20:52:40 +01:00
Kbuild.src
packet.c
signalpipe.c
socket.c