File-copy from v4.4.100

This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Please refer to that tree for all history prior to this point.

Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/tools/usb/usbip/libsrc/usbip_common.h b/tools/usb/usbip/libsrc/usbip_common.h
new file mode 100644
index 0000000..15fe792
--- /dev/null
+++ b/tools/usb/usbip/libsrc/usbip_common.h
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2005-2007 Takahiro Hirofuchi
+ */
+
+#ifndef __USBIP_COMMON_H
+#define __USBIP_COMMON_H
+
+#include <libudev.h>
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <syslog.h>
+#include <unistd.h>
+#include <linux/usb/ch9.h>
+#include <linux/usbip.h>
+
+#ifndef USBIDS_FILE
+#define USBIDS_FILE "/usr/share/hwdata/usb.ids"
+#endif
+
+#ifndef VHCI_STATE_PATH
+#define VHCI_STATE_PATH "/var/run/vhci_hcd"
+#endif
+
+/* kernel module names */
+#define USBIP_CORE_MOD_NAME	"usbip-core"
+#define USBIP_HOST_DRV_NAME	"usbip-host"
+#define USBIP_VHCI_DRV_NAME	"vhci_hcd"
+
+/* sysfs constants */
+#define SYSFS_MNT_PATH         "/sys"
+#define SYSFS_BUS_NAME         "bus"
+#define SYSFS_BUS_TYPE         "usb"
+#define SYSFS_DRIVERS_NAME     "drivers"
+
+#define SYSFS_PATH_MAX		256
+#define SYSFS_BUS_ID_SIZE	32
+
+extern int usbip_use_syslog;
+extern int usbip_use_stderr;
+extern int usbip_use_debug ;
+
+#define PROGNAME "usbip"
+
+#define pr_fmt(fmt)	"%s: %s: " fmt "\n", PROGNAME
+#define dbg_fmt(fmt)	pr_fmt("%s:%d:[%s] " fmt), "debug",	\
+		        __FILE__, __LINE__, __func__
+
+#define err(fmt, args...)						\
+	do {								\
+		if (usbip_use_syslog) {					\
+			syslog(LOG_ERR, pr_fmt(fmt), "error", ##args);	\
+		}							\
+		if (usbip_use_stderr) {					\
+			fprintf(stderr, pr_fmt(fmt), "error", ##args);	\
+		}							\
+	} while (0)
+
+#define info(fmt, args...)						\
+	do {								\
+		if (usbip_use_syslog) {					\
+			syslog(LOG_INFO, pr_fmt(fmt), "info", ##args);	\
+		}							\
+		if (usbip_use_stderr) {					\
+			fprintf(stderr, pr_fmt(fmt), "info", ##args);	\
+		}							\
+	} while (0)
+
+#define dbg(fmt, args...)						\
+	do {								\
+	if (usbip_use_debug) {						\
+		if (usbip_use_syslog) {					\
+			syslog(LOG_DEBUG, dbg_fmt(fmt), ##args);	\
+		}							\
+		if (usbip_use_stderr) {					\
+			fprintf(stderr, dbg_fmt(fmt), ##args);		\
+		}							\
+	}								\
+	} while (0)
+
+#define BUG()						\
+	do {						\
+		err("sorry, it's a bug!");		\
+		abort();				\
+	} while (0)
+
+struct usbip_usb_interface {
+	uint8_t bInterfaceClass;
+	uint8_t bInterfaceSubClass;
+	uint8_t bInterfaceProtocol;
+	uint8_t padding;	/* alignment */
+} __attribute__((packed));
+
+struct usbip_usb_device {
+	char path[SYSFS_PATH_MAX];
+	char busid[SYSFS_BUS_ID_SIZE];
+
+	uint32_t busnum;
+	uint32_t devnum;
+	uint32_t speed;
+
+	uint16_t idVendor;
+	uint16_t idProduct;
+	uint16_t bcdDevice;
+
+	uint8_t bDeviceClass;
+	uint8_t bDeviceSubClass;
+	uint8_t bDeviceProtocol;
+	uint8_t bConfigurationValue;
+	uint8_t bNumConfigurations;
+	uint8_t bNumInterfaces;
+} __attribute__((packed));
+
+#define to_string(s)	#s
+
+void dump_usb_interface(struct usbip_usb_interface *);
+void dump_usb_device(struct usbip_usb_device *);
+int read_usb_device(struct udev_device *sdev, struct usbip_usb_device *udev);
+int read_attr_value(struct udev_device *dev, const char *name,
+		    const char *format);
+int read_usb_interface(struct usbip_usb_device *udev, int i,
+		       struct usbip_usb_interface *uinf);
+
+const char *usbip_speed_string(int num);
+const char *usbip_status_string(int32_t status);
+
+int usbip_names_init(char *);
+void usbip_names_free(void);
+void usbip_names_get_product(char *buff, size_t size, uint16_t vendor,
+			     uint16_t product);
+void usbip_names_get_class(char *buff, size_t size, uint8_t class,
+			   uint8_t subclass, uint8_t protocol);
+
+#endif /* __USBIP_COMMON_H */