98 lines
2.8 KiB
Diff
98 lines
2.8 KiB
Diff
From 5c6204bab7279050b78b3d03d1211e9d13d3fd71 Mon Sep 17 00:00:00 2001
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From: Pavel Zhukov <pzhukov@redhat.com>
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Date: Wed, 27 Mar 2019 09:59:20 +0100
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Subject: [PATCH] Backport sd-notify patch for systemd support (#1687040)
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Cc: pzhukov@redhat.com
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---
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configure.ac | 11 +++++++++++
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relay/dhcrelay.c | 12 ++++++++++++
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server/dhcpd.c | 12 ++++++++++++
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3 files changed, 35 insertions(+)
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diff --git a/configure.ac b/configure.ac
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index 15fc0d7..0c08000 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -1014,6 +1014,17 @@ if test x$ldap = xyes || test x$ldapcrypto = xyes || test x$ldap_gssapi = xyes;
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AC_SUBST(LDAP_CFLAGS, [$LDAP_CFLAGS])
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fi
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+AC_ARG_WITH(systemd,
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+ AC_HELP_STRING([--with-systemd],
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+ [enable sending status notifications to systemd daemon (default is no)]),
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+ [systemd=$withval],
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+ [systemd=no])
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+
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+if test x$systemd = xyes ; then
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+ AC_CHECK_LIB(systemd, sd_notifyf, ,
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+ AC_MSG_FAILURE([*** systemd library not present - do you need to install systemd-libs package?]))
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+fi
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+
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# Append selected warning levels to CFLAGS before substitution (but after
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# AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[],[]) & etc).
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CFLAGS="$CFLAGS $STD_CWARNINGS"
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diff --git a/relay/dhcrelay.c b/relay/dhcrelay.c
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index 7b4f4f1..9eb5bfd 100644
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--- a/relay/dhcrelay.c
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+++ b/relay/dhcrelay.c
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@@ -37,6 +37,10 @@
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int keep_capabilities = 0;
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#endif
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+#ifdef HAVE_LIBSYSTEMD
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+#include <systemd/sd-daemon.h>
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+#endif
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+
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TIME default_lease_time = 43200; /* 12 hours... */
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TIME max_lease_time = 86400; /* 24 hours... */
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struct tree_cache *global_options[256];
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@@ -845,6 +849,14 @@ main(int argc, char **argv) {
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}
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#endif
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+#ifdef HAVE_LIBSYSTEMD
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+ /* We are ready to process incomming packets. Let's notify systemd */
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+ sd_notifyf(0, "READY=1\n"
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+ "STATUS=Dispatching packets...\n"
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+ "MAINPID=%lu",
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+ (unsigned long) getpid());
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+#endif
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+
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/* Start dispatching packets and timeouts... */
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dispatch();
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diff --git a/server/dhcpd.c b/server/dhcpd.c
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index 530a923..e06f6b4 100644
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--- a/server/dhcpd.c
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+++ b/server/dhcpd.c
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@@ -60,6 +60,10 @@ gid_t set_gid = 0;
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struct class unknown_class;
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struct class known_class;
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+#ifdef HAVE_LIBSYSTEMD
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+#include <systemd/sd-daemon.h>
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+#endif
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+
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struct iaddr server_identifier;
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int server_identifier_matched;
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@@ -1057,6 +1061,14 @@ main(int argc, char **argv) {
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/* Log that we are about to start working */
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log_info("Server starting service.");
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+#ifdef HAVE_LIBSYSTEMD
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+ /* We are ready to process incomming packets. Let's notify systemd */
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+ sd_notifyf(0, "READY=1\n"
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+ "STATUS=Dispatching packets...\n"
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+ "MAINPID=%lu",
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+ (unsigned long) getpid());
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+#endif
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+
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/*
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* Receive packets and dispatch them...
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* dispatch() will never return.
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--
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2.14.5
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