From d624e6e2d0f29e07849e90eb1e7531bd0e1b20c8 Mon Sep 17 00:00:00 2001
From: Jorgen Lundman <lundman@lundman.net>
Date: Mon, 28 Oct 2024 13:34:55 +0900
Subject: [PATCH] Attempt to execute a script

Signed-off-by: Jorgen Lundman <lundman@lundman.net>
---
 cmd/zed/os/windows/zed.d/all-debug.ps1 |  2 ++
 cmd/zed/os/windows/zed_exec.c          | 39 ++++++++++++++++++++++++++
 cmd/zed/zed_conf.c                     |  2 ++
 lib/libspl/include/os/windows/unistd.h |  2 +-
 4 files changed, 44 insertions(+), 1 deletion(-)
 create mode 100644 cmd/zed/os/windows/zed.d/all-debug.ps1

diff --git a/cmd/zed/os/windows/zed.d/all-debug.ps1 b/cmd/zed/os/windows/zed.d/all-debug.ps1
new file mode 100644
index 000000000000..3ad358a18701
--- /dev/null
+++ b/cmd/zed/os/windows/zed.d/all-debug.ps1
@@ -0,0 +1,2 @@
+Get-Process
+
diff --git a/cmd/zed/os/windows/zed_exec.c b/cmd/zed/os/windows/zed_exec.c
index 0c3d8701041c..6a744166c043 100644
--- a/cmd/zed/os/windows/zed_exec.c
+++ b/cmd/zed/os/windows/zed_exec.c
@@ -108,6 +108,38 @@ _zed_exec_create_env(zed_strings_t *zsp)
 	return ((char **)buf);
 }
 
+void
+launch_process(const char *path, const char *prog, char *env[])
+{
+	STARTUPINFO si;
+	PROCESS_INFORMATION pi;
+	ZeroMemory(&si, sizeof (si));
+	si.cb = sizeof (si);
+	ZeroMemory(&pi, sizeof (pi));
+	char cmd[MAX_PATH];
+
+	fprintf(stderr, "Launching process '%s' in '%s'\r\n", prog, path);
+	fflush(stderr);
+
+	snprintf(cmd, sizeof (cmd),
+	    "powershell.exe -ExecutionPolicy Bypass -File %s", path);
+
+	if (!CreateProcess(NULL, cmd, NULL, NULL, FALSE, 0, NULL, NULL,
+	    &si, &pi)) {
+		zed_log_msg(LOG_WARNING,
+		    "Failed to create process \"%s\": %s",
+		    prog, strerror(GetLastError()));
+		return;
+	}
+
+	// While we debug
+	WaitForSingleObject(pi.hProcess, INFINITE);
+
+	// Close process and thread handles
+	CloseHandle(pi.hProcess);
+	CloseHandle(pi.hThread);
+}
+
 /*
  * Fork a child process to handle event [eid].  The program [prog]
  * in directory [dir] is executed with the environment [env].
@@ -168,6 +200,13 @@ _zed_exec_fork_child(uint64_t eid, const char *dir, const char *prog,
 		_exit(127);
 	}
 
+#ifdef _WIN32
+	/*
+	 * fork() always returns 1 (parent) above, so here we can spawn process
+	 */
+	launch_process(path, prog, env);
+#endif
+
 	/* parent process */
 
 	node = calloc(1, sizeof (*node));
diff --git a/cmd/zed/zed_conf.c b/cmd/zed/zed_conf.c
index 29de27c77c34..42d8c7f2d645 100644
--- a/cmd/zed/zed_conf.c
+++ b/cmd/zed/zed_conf.c
@@ -386,12 +386,14 @@ zed_conf_scan_dir(struct zed_conf *zcp)
 			    direntp->d_name);
 			continue;
 		}
+#ifndef _WIN32
 		if (!(st.st_mode & S_IXUSR)) {
 			zed_log_msg(LOG_INFO,
 			    "Ignoring \"%s\": not executable by user",
 			    direntp->d_name);
 			continue;
 		}
+#endif
 		if ((st.st_mode & S_IWGRP) && !zcp->do_force) {
 			zed_log_msg(LOG_NOTICE,
 			    "Ignoring \"%s\": writable by group",
diff --git a/lib/libspl/include/os/windows/unistd.h b/lib/libspl/include/os/windows/unistd.h
index 6f52c67fca33..414a09ba30f9 100644
--- a/lib/libspl/include/os/windows/unistd.h
+++ b/lib/libspl/include/os/windows/unistd.h
@@ -104,7 +104,7 @@ extern pid_t setsid(void);
 
 static inline pid_t fork(void)
 {
-	return (0);
+	return (1);
 }
 
 extern int mkostemps(char *templ, int suffixlen, DWORD flags);