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| author | Hans Dedecker <dedeckeh@gmail.com> | 2017-06-26 10:23:08 +0200 |
|---|---|---|
| committer | Hans Dedecker <dedeckeh@gmail.com> | 2017-07-01 13:53:53 +0200 |
| commit | 91d41b630585df9832c9b070230d9e8660903bfc (patch) | |
| tree | 9bcd27c87fef88c9efb00dea47f7a214c438c1f8 | |
| parent | cca765f64c5577b911f1a04a3cef60cf7a745d4b (diff) | |
| download | mtk-20170518-91d41b630585df9832c9b070230d9e8660903bfc.zip mtk-20170518-91d41b630585df9832c9b070230d9e8660903bfc.tar.gz mtk-20170518-91d41b630585df9832c9b070230d9e8660903bfc.tar.bz2 | |
dnsmasq: backport tweak ICMP ping logic for DHCPv4
Don't start ping-check of address in DHCP discover if there already
exists a lease for the address. It has been reported under some
circumstances android and netbooted windows devices can reply to
ICMP pings if they have a lease and thus block the allocation of
the IP address the device already has during boot.
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
| -rw-r--r-- | package/network/services/dnsmasq/Makefile | 2 | ||||
| -rw-r--r-- | package/network/services/dnsmasq/patches/010-Tweak-ICMP-ping-check-logic-for-DHCPv4.patch | 25 |
2 files changed, 26 insertions, 1 deletions
diff --git a/package/network/services/dnsmasq/Makefile b/package/network/services/dnsmasq/Makefile index 85308d2..f676033 100644 --- a/package/network/services/dnsmasq/Makefile +++ b/package/network/services/dnsmasq/Makefile @@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk PKG_NAME:=dnsmasq PKG_VERSION:=2.77 -PKG_RELEASE:=1 +PKG_RELEASE:=2 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz PKG_SOURCE_URL:=http://thekelleys.org.uk/dnsmasq/ diff --git a/package/network/services/dnsmasq/patches/010-Tweak-ICMP-ping-check-logic-for-DHCPv4.patch b/package/network/services/dnsmasq/patches/010-Tweak-ICMP-ping-check-logic-for-DHCPv4.patch new file mode 100644 index 0000000..571ff36 --- /dev/null +++ b/package/network/services/dnsmasq/patches/010-Tweak-ICMP-ping-check-logic-for-DHCPv4.patch @@ -0,0 +1,25 @@ +From 4bb68866a8aeb31db8100492bceae051e33be5d0 Mon Sep 17 00:00:00 2001 +From: Simon Kelley <simon@thekelleys.org.uk> +Date: Thu, 15 Jun 2017 23:18:44 +0100 +Subject: [PATCH] Tweak ICMP ping check logic for DHCPv4. + +--- + src/rfc2131.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/rfc2131.c b/src/rfc2131.c +index 1c850e5..75792da 100644 +--- a/src/rfc2131.c ++++ b/src/rfc2131.c +@@ -1040,7 +1040,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index, + else if (have_config(config, CONFIG_DECLINED) && + difftime(now, config->decline_time) < (float)DECLINE_BACKOFF) + my_syslog(MS_DHCP | LOG_WARNING, _("not using configured address %s because it was previously declined"), addrs); +- else if (!do_icmp_ping(now, config->addr, 0, loopback)) ++ else if ((!lease || lease->addr.s_addr != config->addr.s_addr) && !do_icmp_ping(now, config->addr, 0, loopback)) + my_syslog(MS_DHCP | LOG_WARNING, _("not using configured address %s because it is in use by another host"), addrs); + else + conf = config->addr; +-- +1.9.1 + |