core: only set the watchdog variables in ExecStart= lines

diff --git a/src/core/execute.c b/src/core/execute.c
index 9028139..7aafb1b 100644 (file)
--- a/src/core/execute.c
+++ b/src/core/execute.c
@@ -1425,7 +1425,7 @@ static int build_environment(
                 our_env[n_env++] = x;
         }
 
-        if (p->watchdog_usec > 0) {
+        if ((p->flags & EXEC_SET_WATCHDOG) && p->watchdog_usec > 0) {
                 if (asprintf(&x, "WATCHDOG_PID="PID_FMT, getpid()) < 0)
                         return -ENOMEM;
                 our_env[n_env++] = x;

diff --git a/src/core/execute.h b/src/core/execute.h
index 2b4238e..2d05ca3 100644 (file)
--- a/src/core/execute.h
+++ b/src/core/execute.h
@@ -218,6 +218,7 @@ typedef enum ExecFlags {
         EXEC_PASS_FDS          = 1U << 4,
         EXEC_IS_CONTROL        = 1U << 5,
         EXEC_SETENV_RESULT     = 1U << 6,
+        EXEC_SET_WATCHDOG      = 1U << 7,
 } ExecFlags;
 
 struct ExecParameters {

diff --git a/src/core/service.c b/src/core/service.c
index a6793b8..c21653f 100644 (file)
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -1743,7 +1743,7 @@ static void service_enter_start(Service *s) {
         r = service_spawn(s,
                           c,
                           timeout,
-                          EXEC_PASS_FDS|EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN,
+                          EXEC_PASS_FDS|EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG,
                           &pid);
         if (r < 0)
                 goto fail;
@@ -1955,7 +1955,7 @@ static void service_run_next_main(Service *s) {
         r = service_spawn(s,
                           s->main_command,
                           s->timeout_start_usec,
-                          EXEC_PASS_FDS|EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN,
+                          EXEC_PASS_FDS|EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG,
                           &pid);
         if (r < 0)
                 goto fail;