package/network/services/dnsmasq/patches/011-Remove-ping-check-of-configured-DHCP-address.patch

   1 From 1d224949cced9e82440d00b3dbaf32c262bac2ff Mon Sep 17 00:00:00 2001
   2 From: Simon Kelley <simon@thekelleys.org.uk>
   3 Date: Sat, 8 Jul 2017 20:52:55 +0100
   4 Subject: [PATCH 1/2] Remove ping-check of configured DHCP address.
   5
   6 This was added in 5ce3e76fbf89e942e8c54ef3e3389facf0d9067a but
   7 it trips over too many buggy clients that leave an interface configured
   8 even in DHCPDISCOVER case.
   9 ---
  10  src/rfc2131.c | 2 --
  11  1 file changed, 2 deletions(-)
  12
  13 diff --git a/src/rfc2131.c b/src/rfc2131.c
  14 index 86230b4..785e15c 100644
  15 --- a/src/rfc2131.c
  16 +++ b/src/rfc2131.c
  17 @@ -1040,8 +1040,6 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
  18                   else if (have_config(config, CONFIG_DECLINED) &&
  19                            difftime(now, config->decline_time) < (float)DECLINE_BACKOFF)
  20                     my_syslog(MS_DHCP | LOG_WARNING, _("not using configured address %s because it was previously declined"), addrs);
  21 -                 else if ((!lease || lease->addr.s_addr != config->addr.s_addr) && !do_icmp_ping(now, config->addr, 0, loopback))
  22 -                   my_syslog(MS_DHCP | LOG_WARNING, _("not using configured address %s because it is in use by another host"), addrs);
  23                   else
  24                     conf = config->addr;
  25                 }
  26 --
  27 2.13.2
  28