--- /dev/null
+From fc73e2405a8ca928465580b74a4d76112919367b Mon Sep 17 00:00:00 2001
+From: Damien Miller <djm@mindrot.org>
+Date: Wed, 3 Apr 2024 14:40:32 +1100
+Subject: [PATCH] notify systemd on listen and reload
+
+Standalone implementation that does not depend on libsystemd.
+With assistance from Luca Boccassi, and feedback/testing from Colin
+Watson. bz2641
+
+Upstream-Status: Backport [https://github.com/openssh/openssh-portable/commit/08f579231cd38a1c657aaa6ddeb8ab57a1fd4f5c]
+
+Signed-off-by: Jose Quaresma <jose.quaresma@foundries.io>
+---
+ configure.ac | 1 +
+ openbsd-compat/port-linux.c | 97 ++++++++++++++++++++++++++++++++++++-
+ openbsd-compat/port-linux.h | 5 ++
+ platform.c | 11 +++++
+ platform.h | 1 +
+ sshd.c | 2 +
+ 6 files changed, 115 insertions(+), 2 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 82e8bb7c1..854f92b5b 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -915,6 +915,7 @@ int main(void) { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16))
+ AC_DEFINE([_PATH_BTMP], ["/var/log/btmp"], [log for bad login attempts])
+ AC_DEFINE([USE_BTMP])
+ AC_DEFINE([LINUX_OOM_ADJUST], [1], [Adjust Linux out-of-memory killer])
++ AC_DEFINE([SYSTEMD_NOTIFY], [1], [Have sshd notify systemd on start/reload])
+ inet6_default_4in6=yes
+ case `uname -r` in
+ 1.*|2.0.*)
+diff --git a/openbsd-compat/port-linux.c b/openbsd-compat/port-linux.c
+index 0457e28d0..df7290246 100644
+--- a/openbsd-compat/port-linux.c
++++ b/openbsd-compat/port-linux.c
+@@ -21,16 +21,23 @@
+
+ #include "includes.h"
+
+-#if defined(WITH_SELINUX) || defined(LINUX_OOM_ADJUST)
++#if defined(WITH_SELINUX) || defined(LINUX_OOM_ADJUST) || \
++ defined(SYSTEMD_NOTIFY)
++#include <sys/socket.h>
++#include <sys/un.h>
++
+ #include <errno.h>
++#include <inttypes.h>
+ #include <stdarg.h>
+ #include <string.h>
+ #include <stdio.h>
+ #include <stdlib.h>
++#include <time.h>
+
+ #include "log.h"
+ #include "xmalloc.h"
+ #include "port-linux.h"
++#include "misc.h"
+
+ #ifdef WITH_SELINUX
+ #include <selinux/selinux.h>
+@@ -310,4 +317,90 @@ oom_adjust_restore(void)
+ return;
+ }
+ #endif /* LINUX_OOM_ADJUST */
+-#endif /* WITH_SELINUX || LINUX_OOM_ADJUST */
++
++#ifdef SYSTEMD_NOTIFY
++
++static void ssh_systemd_notify(const char *, ...)
++ __attribute__((__format__ (printf, 1, 2))) __attribute__((__nonnull__ (1)));
++
++static void
++ssh_systemd_notify(const char *fmt, ...)
++{
++ char *s = NULL;
++ const char *path;
++ struct stat sb;
++ struct sockaddr_un addr;
++ int fd = -1;
++ va_list ap;
++
++ if ((path = getenv("NOTIFY_SOCKET")) == NULL || strlen(path) == 0)
++ return;
++
++ va_start(ap, fmt);
++ xvasprintf(&s, fmt, ap);
++ va_end(ap);
++
++ /* Only AF_UNIX is supported, with path or abstract sockets */
++ if (path[0] != '/' && path[0] != '@') {
++ error_f("socket \"%s\" is not compatible with AF_UNIX", path);
++ goto out;
++ }
++
++ if (path[0] == '/' && stat(path, &sb) != 0) {
++ error_f("socket \"%s\" stat: %s", path, strerror(errno));
++ goto out;
++ }
++
++ memset(&addr, 0, sizeof(addr));
++ addr.sun_family = AF_UNIX;
++ if (strlcpy(addr.sun_path, path,
++ sizeof(addr.sun_path)) >= sizeof(addr.sun_path)) {
++ error_f("socket path \"%s\" too long", path);
++ goto out;
++ }
++ /* Support for abstract socket */
++ if (addr.sun_path[0] == '@')
++ addr.sun_path[0] = 0;
++ if ((fd = socket(PF_UNIX, SOCK_DGRAM, 0)) == -1) {
++ error_f("socket \"%s\": %s", path, strerror(errno));
++ goto out;
++ }
++ if (connect(fd, &addr, sizeof(addr)) != 0) {
++ error_f("socket \"%s\" connect: %s", path, strerror(errno));
++ goto out;
++ }
++ if (write(fd, s, strlen(s)) != (ssize_t)strlen(s)) {
++ error_f("socket \"%s\" write: %s", path, strerror(errno));
++ goto out;
++ }
++ debug_f("socket \"%s\" notified %s", path, s);
++ out:
++ if (fd != -1)
++ close(fd);
++ free(s);
++}
++
++void
++ssh_systemd_notify_ready(void)
++{
++ ssh_systemd_notify("READY=1");
++}
++
++void
++ssh_systemd_notify_reload(void)
++{
++ struct timespec now;
++
++ monotime_ts(&now);
++ if (now.tv_sec < 0 || now.tv_nsec < 0) {
++ error_f("monotime returned negative value");
++ ssh_systemd_notify("RELOADING=1");
++ } else {
++ ssh_systemd_notify("RELOADING=1\nMONOTONIC_USEC=%llu",
++ ((uint64_t)now.tv_sec * 1000000ULL) +
++ ((uint64_t)now.tv_nsec / 1000ULL));
++ }
++}
++#endif /* SYSTEMD_NOTIFY */
++
++#endif /* WITH_SELINUX || LINUX_OOM_ADJUST || SYSTEMD_NOTIFY */
+diff --git a/openbsd-compat/port-linux.h b/openbsd-compat/port-linux.h
+index 3c22a854d..14064f87d 100644
+--- a/openbsd-compat/port-linux.h
++++ b/openbsd-compat/port-linux.h
+@@ -30,4 +30,9 @@ void oom_adjust_restore(void);
+ void oom_adjust_setup(void);
+ #endif
+
++#ifdef SYSTEMD_NOTIFY
++void ssh_systemd_notify_ready(void);
++void ssh_systemd_notify_reload(void);
++#endif
++
+ #endif /* ! _PORT_LINUX_H */
+diff --git a/platform.c b/platform.c
+index 4fe8744ee..9cf818153 100644
+--- a/platform.c
++++ b/platform.c
+@@ -44,6 +44,14 @@ platform_pre_listen(void)
+ #endif
+ }
+
++void
++platform_post_listen(void)
++{
++#ifdef SYSTEMD_NOTIFY
++ ssh_systemd_notify_ready();
++#endif
++}
++
+ void
+ platform_pre_fork(void)
+ {
+@@ -55,6 +63,9 @@ platform_pre_fork(void)
+ void
+ platform_pre_restart(void)
+ {
++#ifdef SYSTEMD_NOTIFY
++ ssh_systemd_notify_reload();
++#endif
+ #ifdef LINUX_OOM_ADJUST
+ oom_adjust_restore();
+ #endif
+diff --git a/platform.h b/platform.h
+index 7fef8c983..5dec23276 100644
+--- a/platform.h
++++ b/platform.h
+@@ -21,6 +21,7 @@
+ void platform_pre_listen(void);
+ void platform_pre_fork(void);
+ void platform_pre_restart(void);
++void platform_post_listen(void);
+ void platform_post_fork_parent(pid_t child_pid);
+ void platform_post_fork_child(void);
+ int platform_privileged_uidswap(void);
+diff --git a/sshd.c b/sshd.c
+index b4f2b9742..865331b46 100644
+--- a/sshd.c
++++ b/sshd.c
+@@ -2077,6 +2077,8 @@ main(int ac, char **av)
+ ssh_signal(SIGTERM, sigterm_handler);
+ ssh_signal(SIGQUIT, sigterm_handler);
+
++ platform_post_listen();
++
+ /*
+ * Write out the pid file after the sigterm handler
+ * is setup and the listen sockets are bound
+--
+2.45.2
+
+++ /dev/null
-From b02ef7621758f06eb686ef4f620636dbad086eda Mon Sep 17 00:00:00 2001
-From: Matt Jolly <Matt.Jolly@footclan.ninja>
-Date: Thu, 2 Feb 2023 21:05:40 +1100
-Subject: [PATCH] systemd: Add optional support for systemd `sd_notify`
-
-This is a rebase of Dennis Lamm's <expeditioneer@gentoo.org>
-patch based on Jakub Jelen's <jjelen@redhat.com> original patch
-
-Upstream-Status: Denied [https://github.com/openssh/openssh-portable/pull/375/commits/be187435911cde6cc3cef6982a508261074f1e56]
-
-Signed-off-by: Xiangyu Chen <xiangyu.chen@windriver.com>
----
- configure.ac | 24 ++++++++++++++++++++++++
- sshd.c | 13 +++++++++++++
- 2 files changed, 37 insertions(+)
-
-diff --git a/configure.ac b/configure.ac
-index 82e8bb7..d1145d3 100644
---- a/configure.ac
-+++ b/configure.ac
-@@ -4870,6 +4870,29 @@ AC_SUBST([GSSLIBS])
- AC_SUBST([K5LIBS])
- AC_SUBST([CHANNELLIBS])
-
-+# Check whether user wants systemd support
-+SYSTEMD_MSG="no"
-+AC_ARG_WITH(systemd,
-+ [ --with-systemd Enable systemd support],
-+ [ if test "x$withval" != "xno" ; then
-+ AC_PATH_TOOL([PKGCONFIG], [pkg-config], [no])
-+ if test "$PKGCONFIG" != "no"; then
-+ AC_MSG_CHECKING([for libsystemd])
-+ if $PKGCONFIG --exists libsystemd; then
-+ SYSTEMD_CFLAGS=`$PKGCONFIG --cflags libsystemd`
-+ SYSTEMD_LIBS=`$PKGCONFIG --libs libsystemd`
-+ CPPFLAGS="$CPPFLAGS $SYSTEMD_CFLAGS"
-+ SSHDLIBS="$SSHDLIBS $SYSTEMD_LIBS"
-+ AC_MSG_RESULT([yes])
-+ AC_DEFINE(HAVE_SYSTEMD, 1, [Define if you want systemd support.])
-+ SYSTEMD_MSG="yes"
-+ else
-+ AC_MSG_RESULT([no])
-+ fi
-+ fi
-+ fi ]
-+)
-+
- # Looking for programs, paths and files
-
- PRIVSEP_PATH=/var/empty
-@@ -5688,6 +5711,7 @@ echo " libldns support: $LDNS_MSG"
- echo " Solaris process contract support: $SPC_MSG"
- echo " Solaris project support: $SP_MSG"
- echo " Solaris privilege support: $SPP_MSG"
-+echo " systemd support: $SYSTEMD_MSG"
- echo " IP address in \$DISPLAY hack: $DISPLAY_HACK_MSG"
- echo " Translate v4 in v6 hack: $IPV4_IN6_HACK_MSG"
- echo " BSD Auth support: $BSD_AUTH_MSG"
-diff --git a/sshd.c b/sshd.c
-index b4f2b97..6820a41 100644
---- a/sshd.c
-+++ b/sshd.c
-@@ -88,6 +88,10 @@
- #include <prot.h>
- #endif
-
-+#ifdef HAVE_SYSTEMD
-+#include <systemd/sd-daemon.h>
-+#endif
-+
- #include "xmalloc.h"
- #include "ssh.h"
- #include "ssh2.h"
-@@ -308,6 +312,10 @@ static void
- sighup_restart(void)
- {
- logit("Received SIGHUP; restarting.");
-+#ifdef HAVE_SYSTEMD
-+ /* Signal systemd that we are reloading */
-+ sd_notify(0, "RELOADING=1");
-+#endif
- if (options.pid_file != NULL)
- unlink(options.pid_file);
- platform_pre_restart();
-@@ -2093,6 +2101,11 @@ main(int ac, char **av)
- }
- }
-
-+#ifdef HAVE_SYSTEMD
-+ /* Signal systemd that we are ready to accept connections */
-+ sd_notify(0, "READY=1");
-+#endif
-+
- /* Accept a connection and return in a forked child */
- server_accept_loop(&sock_in, &sock_out,
- &newsock, config_s);
projects / thirdparty / openembedded / openembedded-core-contrib.git / commitdiff
