dlt-daemon: fix dlt-system.service failed since buffer overflow

dlt-system.service start failed with error:
dlt-system[367]: *** buffer overflow detected ***: terminated
dlt-system.service: Failed with result 'watchdog'.
dlt-system.service: Main process exited, code=dumped, status=6/ABRT                                                                                        dlt-system.service: Watchdog timeout (limit 2s)!

Signed-off-by: Changqing Li <changqing.li@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

2 files changed, 41 insertions, 0 deletions

diff --git a/meta-oe/recipes-extended/dlt-daemon/dlt-daemon/0001-dlt-system-Fix-buffer-overflow-detection-on-32bit-ta.patch b/meta-oe/recipes-extended/dlt-daemon/dlt-daemon/0001-dlt-system-Fix-buffer-overflow-detection-on-32bit-ta.patch
new file mode 100644
index 0000000000..e7e6cb3b1a
--- /dev/null
+++ b/meta-oe/recipes-extended/dlt-daemon/dlt-daemon/0001-dlt-system-Fix-buffer-overflow-detection-on-32bit-ta.patch
@@ -0,0 +1,40 @@
+From 94378458d653b1edca86435026909592cbe5e793 Mon Sep 17 00:00:00 2001
+From: Changqing Li <changqing.li@windriver.com>
+Date: Fri, 19 Aug 2022 11:12:17 +0800
+Subject: [PATCH] dlt-system: Fix buffer overflow detection on 32bit targets
+
+On 32bit target, dlt-system will termiated with error:
+dlt-system: *** buffer overflow detected ***: terminated
+
+Upstream-Status: Submitted [https://github.com/COVESA/dlt-daemon/pull/398]
+
+Signed-off-by: Changqing Li <changqing.li@windriver.com>
+---
+ src/system/dlt-system-watchdog.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/src/system/dlt-system-watchdog.c b/src/system/dlt-system-watchdog.c
+index a2b01de..c0eaa12 100644
+--- a/src/system/dlt-system-watchdog.c
++++ b/src/system/dlt-system-watchdog.c
+@@ -109,8 +109,8 @@ int register_watchdog_fd(struct pollfd *pollfd, int fdcnt)
+ 
+ void watchdog_fd_handler(int fd)
+ {
+-    long int timersElapsed = 0;
+-    int r = read(fd, &timersElapsed, 8);    // only needed to reset fd event
++    uint64_t timersElapsed = 0ULL;
++    int r = read(fd, &timersElapsed, 8U);    // only needed to reset fd event
+     if(r < 0)
+         DLT_LOG(watchdogContext, DLT_LOG_ERROR, DLT_STRING("Could not reset systemd watchdog. Exit with: "), 
+             DLT_STRING(strerror(r)));
+@@ -120,4 +120,4 @@ void watchdog_fd_handler(int fd)
+ 
+     DLT_LOG(watchdogContext, DLT_LOG_DEBUG, DLT_STRING("systemd watchdog waited periodic\n"));
+ }
+-#endif
+\ No newline at end of file
++#endif
+-- 
+2.25.1
+
diff --git a/meta-oe/recipes-extended/dlt-daemon/dlt-daemon_2.18.8.bb b/meta-oe/recipes-extended/dlt-daemon/dlt-daemon_2.18.8.bb
index 7a613bcc93..aa5ef46a9d 100644
--- a/meta-oe/recipes-extended/dlt-daemon/dlt-daemon_2.18.8.bb
+++ b/meta-oe/recipes-extended/dlt-daemon/dlt-daemon_2.18.8.bb
@@ -18,6 +18,7 @@ SRC_URI = "git://github.com/GENIVI/${BPN}.git;protocol=https;branch=master \
            file://0002-Don-t-execute-processes-as-a-specific-user.patch \
            file://0004-Modify-systemd-config-directory.patch \
            file://0001-cmake-Link-with-libatomic-on-rv32-rv64.patch \
+           file://0001-dlt-system-Fix-buffer-overflow-detection-on-32bit-ta.patch \
            "
 SRCREV = "6a3bd901d825c7206797e36ea98e10a218f5aad2"