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Dnsmasq used SIGHUP to do too many things: 1) set dnssec time validation enabled, 2) bump SOA zone serial, 3) clear dns cache, 4) reload hosts files, 5) reload resolvers/servers files. Many subsystems within LEDE can send SIGHUP to dnsmasq: 1) ntpd hotplug (to indicate time is valid for dnssec) 2) odhcpd (to indicate a new/removed host - typically DHCPv6 leases) 3) procd on interface state changes 4) procd on system config state changes, 5) service reload. If dnssec time validation is enabled before the system clock has been set to a sensible time, name resolution will fail. Because name resolution fails, ntpd is unable to resolve time server names to addresses, so is unable to set time. Classic chicken/egg. Since commits 23bba9cb330cd298739a16e350b0029ed9429eef (service reload) & 4f02285d8b4a66359a8fa46f22a3efde391b5419 (system config) make it more likely a SIGHUP will be sent for events other than 'ntpd has set time' it is more likely that an errant 'name resolution is failing for everything' situation will be encountered. Fortunately the upstream dnsmasq people agree and have moved 'check dnssec timestamp enable' from SIGHUP handler to SIGINT. Backport the upstream patch to use SIGINT. ntpd hotplug script updated to use SIGINT. Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
This is the buildsystem for the OpenWrt Linux distribution. Please use "make menuconfig" to choose your preferred configuration for the toolchain and firmware. You need to have installed gcc, binutils, bzip2, flex, python, perl, make, find, grep, diff, unzip, gawk, getopt, subversion, libz-dev and libc headers. Run "./scripts/feeds update -a" to get all the latest package definitions defined in feeds.conf / feeds.conf.default respectively and "./scripts/feeds install -a" to install symlinks of all of them into package/feeds/. Use "make menuconfig" to configure your image. Simply running "make" will build your firmware. It will download all sources, build the cross-compile toolchain, the kernel and all choosen applications. To build your own firmware you need to have access to a Linux, BSD or MacOSX system (case-sensitive filesystem required). Cygwin will not be supported because of the lack of case sensitiveness in the file system. Sunshine! Your OpenWrt Community http://www.openwrt.org