From 8a6d48c0542876eb3acfc0970c0ab7872db08d5f Mon Sep 17 00:00:00 2001
From: Zheng Da <zhengda1936@gmail.com>
Date: Sun, 6 Dec 2009 05:26:23 +0100
Subject: check in the original version of dde linux26.

---
 libdde_linux26/contrib/include/linux/kmod.h | 105 ++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 libdde_linux26/contrib/include/linux/kmod.h

(limited to 'libdde_linux26/contrib/include/linux/kmod.h')

diff --git a/libdde_linux26/contrib/include/linux/kmod.h b/libdde_linux26/contrib/include/linux/kmod.h
new file mode 100644
index 00000000..92213a91
--- /dev/null
+++ b/libdde_linux26/contrib/include/linux/kmod.h
@@ -0,0 +1,105 @@
+#ifndef __LINUX_KMOD_H__
+#define __LINUX_KMOD_H__
+
+/*
+ *	include/linux/kmod.h
+ *
+ *      This program is free software; you can redistribute it and/or modify
+ *      it under the terms of the GNU General Public License as published by
+ *      the Free Software Foundation; either version 2 of the License, or
+ *      (at your option) any later version.
+ *
+ *      This program is distributed in the hope that it will be useful,
+ *      but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *      GNU General Public License for more details.
+ *
+ *      You should have received a copy of the GNU General Public License
+ *      along with this program; if not, write to the Free Software
+ *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/gfp.h>
+#include <linux/stddef.h>
+#include <linux/errno.h>
+#include <linux/compiler.h>
+
+#define KMOD_PATH_LEN 256
+
+#ifdef CONFIG_MODULES
+/* modprobe exit status on success, -ve on error.  Return value
+ * usually useless though. */
+extern int request_module(const char * name, ...) __attribute__ ((format (printf, 1, 2)));
+#define try_then_request_module(x, mod...) ((x) ?: (request_module(mod), (x)))
+#else
+static inline int request_module(const char * name, ...) { return -ENOSYS; }
+#define try_then_request_module(x, mod...) (x)
+#endif
+
+
+struct key;
+struct file;
+struct subprocess_info;
+
+/* Allocate a subprocess_info structure */
+struct subprocess_info *call_usermodehelper_setup(char *path, char **argv,
+						  char **envp, gfp_t gfp_mask);
+
+/* Set various pieces of state into the subprocess_info structure */
+void call_usermodehelper_setkeys(struct subprocess_info *info,
+				 struct key *session_keyring);
+int call_usermodehelper_stdinpipe(struct subprocess_info *sub_info,
+				  struct file **filp);
+void call_usermodehelper_setcleanup(struct subprocess_info *info,
+				    void (*cleanup)(char **argv, char **envp));
+
+enum umh_wait {
+	UMH_NO_WAIT = -1,	/* don't wait at all */
+	UMH_WAIT_EXEC = 0,	/* wait for the exec, but not the process */
+	UMH_WAIT_PROC = 1,	/* wait for the process to complete */
+};
+
+/* Actually execute the sub-process */
+int call_usermodehelper_exec(struct subprocess_info *info, enum umh_wait wait);
+
+/* Free the subprocess_info. This is only needed if you're not going
+   to call call_usermodehelper_exec */
+void call_usermodehelper_freeinfo(struct subprocess_info *info);
+
+static inline int
+call_usermodehelper(char *path, char **argv, char **envp, enum umh_wait wait)
+{
+	struct subprocess_info *info;
+	gfp_t gfp_mask = (wait == UMH_NO_WAIT) ? GFP_ATOMIC : GFP_KERNEL;
+
+	info = call_usermodehelper_setup(path, argv, envp, gfp_mask);
+	if (info == NULL)
+		return -ENOMEM;
+	return call_usermodehelper_exec(info, wait);
+}
+
+static inline int
+call_usermodehelper_keys(char *path, char **argv, char **envp,
+			 struct key *session_keyring, enum umh_wait wait)
+{
+	struct subprocess_info *info;
+	gfp_t gfp_mask = (wait == UMH_NO_WAIT) ? GFP_ATOMIC : GFP_KERNEL;
+
+	info = call_usermodehelper_setup(path, argv, envp, gfp_mask);
+	if (info == NULL)
+		return -ENOMEM;
+
+	call_usermodehelper_setkeys(info, session_keyring);
+	return call_usermodehelper_exec(info, wait);
+}
+
+extern void usermodehelper_init(void);
+
+struct file;
+extern int call_usermodehelper_pipe(char *path, char *argv[], char *envp[],
+				    struct file **filp);
+
+extern int usermodehelper_disable(void);
+extern void usermodehelper_enable(void);
+
+#endif /* __LINUX_KMOD_H__ */
-- 
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