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usbip: move usbip userspace code out of staging
At this point, USB/IP userspace code is fully functional and can be moved out of staging. Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Valentina Manea
Greg Kroah-Hartman
parent
1ddb55275d
commit
588b48caf6
37 changed files with 0 additions and 0 deletions
285
tools/usb/usbip/libsrc/usbip_common.c
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285
tools/usb/usbip/libsrc/usbip_common.c
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@ -0,0 +1,285 @@
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/*
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* Copyright (C) 2005-2007 Takahiro Hirofuchi
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*/
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#include <libudev.h>
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#include "usbip_common.h"
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#include "names.h"
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#undef PROGNAME
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#define PROGNAME "libusbip"
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int usbip_use_syslog;
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int usbip_use_stderr;
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int usbip_use_debug;
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extern struct udev *udev_context;
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struct speed_string {
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int num;
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char *speed;
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char *desc;
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};
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static const struct speed_string speed_strings[] = {
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{ USB_SPEED_UNKNOWN, "unknown", "Unknown Speed"},
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{ USB_SPEED_LOW, "1.5", "Low Speed(1.5Mbps)" },
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{ USB_SPEED_FULL, "12", "Full Speed(12Mbps)" },
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{ USB_SPEED_HIGH, "480", "High Speed(480Mbps)" },
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{ USB_SPEED_WIRELESS, "53.3-480", "Wireless"},
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{ USB_SPEED_SUPER, "5000", "Super Speed(5000Mbps)" },
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{ 0, NULL, NULL }
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};
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struct portst_string {
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int num;
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char *desc;
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};
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static struct portst_string portst_strings[] = {
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{ SDEV_ST_AVAILABLE, "Device Available" },
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{ SDEV_ST_USED, "Device in Use" },
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{ SDEV_ST_ERROR, "Device Error"},
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{ VDEV_ST_NULL, "Port Available"},
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{ VDEV_ST_NOTASSIGNED, "Port Initializing"},
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{ VDEV_ST_USED, "Port in Use"},
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{ VDEV_ST_ERROR, "Port Error"},
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{ 0, NULL}
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};
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const char *usbip_status_string(int32_t status)
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{
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for (int i = 0; portst_strings[i].desc != NULL; i++)
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if (portst_strings[i].num == status)
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return portst_strings[i].desc;
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return "Unknown Status";
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}
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const char *usbip_speed_string(int num)
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{
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for (int i = 0; speed_strings[i].speed != NULL; i++)
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if (speed_strings[i].num == num)
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return speed_strings[i].desc;
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return "Unknown Speed";
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}
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#define DBG_UDEV_INTEGER(name)\
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dbg("%-20s = %x", to_string(name), (int) udev->name)
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#define DBG_UINF_INTEGER(name)\
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dbg("%-20s = %x", to_string(name), (int) uinf->name)
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void dump_usb_interface(struct usbip_usb_interface *uinf)
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{
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char buff[100];
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usbip_names_get_class(buff, sizeof(buff),
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uinf->bInterfaceClass,
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uinf->bInterfaceSubClass,
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uinf->bInterfaceProtocol);
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dbg("%-20s = %s", "Interface(C/SC/P)", buff);
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}
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void dump_usb_device(struct usbip_usb_device *udev)
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{
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char buff[100];
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dbg("%-20s = %s", "path", udev->path);
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dbg("%-20s = %s", "busid", udev->busid);
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usbip_names_get_class(buff, sizeof(buff),
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udev->bDeviceClass,
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udev->bDeviceSubClass,
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udev->bDeviceProtocol);
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dbg("%-20s = %s", "Device(C/SC/P)", buff);
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DBG_UDEV_INTEGER(bcdDevice);
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usbip_names_get_product(buff, sizeof(buff),
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udev->idVendor,
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udev->idProduct);
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dbg("%-20s = %s", "Vendor/Product", buff);
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DBG_UDEV_INTEGER(bNumConfigurations);
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DBG_UDEV_INTEGER(bNumInterfaces);
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dbg("%-20s = %s", "speed",
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usbip_speed_string(udev->speed));
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DBG_UDEV_INTEGER(busnum);
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DBG_UDEV_INTEGER(devnum);
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}
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int read_attr_value(struct udev_device *dev, const char *name,
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const char *format)
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{
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const char *attr;
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int num = 0;
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int ret;
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attr = udev_device_get_sysattr_value(dev, name);
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if (!attr) {
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err("udev_device_get_sysattr_value failed");
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goto err;
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}
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/* The client chooses the device configuration
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* when attaching it so right after being bound
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* to usbip-host on the server the device will
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* have no configuration.
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* Therefore, attributes such as bConfigurationValue
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* and bNumInterfaces will not exist and sscanf will
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* fail. Check for these cases and don't treat them
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* as errors.
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*/
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ret = sscanf(attr, format, &num);
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if (ret < 1) {
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if (strcmp(name, "bConfigurationValue") &&
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strcmp(name, "bNumInterfaces")) {
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err("sscanf failed for attribute %s", name);
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goto err;
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}
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}
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err:
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return num;
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}
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int read_attr_speed(struct udev_device *dev)
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{
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const char *speed;
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speed = udev_device_get_sysattr_value(dev, "speed");
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if (!speed) {
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err("udev_device_get_sysattr_value failed");
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goto err;
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}
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for (int i = 0; speed_strings[i].speed != NULL; i++) {
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if (!strcmp(speed, speed_strings[i].speed))
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return speed_strings[i].num;
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}
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err:
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return USB_SPEED_UNKNOWN;
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}
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#define READ_ATTR(object, type, dev, name, format) \
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do { \
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(object)->name = (type) read_attr_value(dev, to_string(name), \
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format); \
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} while (0)
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int read_usb_device(struct udev_device *sdev, struct usbip_usb_device *udev)
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{
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uint32_t busnum, devnum;
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const char *path, *name;
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READ_ATTR(udev, uint8_t, sdev, bDeviceClass, "%02x\n");
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READ_ATTR(udev, uint8_t, sdev, bDeviceSubClass, "%02x\n");
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READ_ATTR(udev, uint8_t, sdev, bDeviceProtocol, "%02x\n");
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READ_ATTR(udev, uint16_t, sdev, idVendor, "%04x\n");
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READ_ATTR(udev, uint16_t, sdev, idProduct, "%04x\n");
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READ_ATTR(udev, uint16_t, sdev, bcdDevice, "%04x\n");
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READ_ATTR(udev, uint8_t, sdev, bConfigurationValue, "%02x\n");
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READ_ATTR(udev, uint8_t, sdev, bNumConfigurations, "%02x\n");
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READ_ATTR(udev, uint8_t, sdev, bNumInterfaces, "%02x\n");
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READ_ATTR(udev, uint8_t, sdev, devnum, "%d\n");
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udev->speed = read_attr_speed(sdev);
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path = udev_device_get_syspath(sdev);
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name = udev_device_get_sysname(sdev);
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strncpy(udev->path, path, SYSFS_PATH_MAX);
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strncpy(udev->busid, name, SYSFS_BUS_ID_SIZE);
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sscanf(name, "%u-%u", &busnum, &devnum);
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udev->busnum = busnum;
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return 0;
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}
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int read_usb_interface(struct usbip_usb_device *udev, int i,
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struct usbip_usb_interface *uinf)
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{
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char busid[SYSFS_BUS_ID_SIZE];
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struct udev_device *sif;
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sprintf(busid, "%s:%d.%d", udev->busid, udev->bConfigurationValue, i);
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sif = udev_device_new_from_subsystem_sysname(udev_context, "usb", busid);
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if (!sif) {
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err("udev_device_new_from_subsystem_sysname %s failed", busid);
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return -1;
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}
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READ_ATTR(uinf, uint8_t, sif, bInterfaceClass, "%02x\n");
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READ_ATTR(uinf, uint8_t, sif, bInterfaceSubClass, "%02x\n");
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READ_ATTR(uinf, uint8_t, sif, bInterfaceProtocol, "%02x\n");
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return 0;
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}
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int usbip_names_init(char *f)
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{
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return names_init(f);
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}
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void usbip_names_free(void)
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{
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names_free();
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}
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void usbip_names_get_product(char *buff, size_t size, uint16_t vendor,
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uint16_t product)
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{
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const char *prod, *vend;
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prod = names_product(vendor, product);
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if (!prod)
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prod = "unknown product";
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vend = names_vendor(vendor);
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if (!vend)
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vend = "unknown vendor";
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snprintf(buff, size, "%s : %s (%04x:%04x)", vend, prod, vendor, product);
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}
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void usbip_names_get_class(char *buff, size_t size, uint8_t class,
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uint8_t subclass, uint8_t protocol)
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{
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const char *c, *s, *p;
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if (class == 0 && subclass == 0 && protocol == 0) {
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snprintf(buff, size, "(Defined at Interface level) (%02x/%02x/%02x)", class, subclass, protocol);
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return;
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}
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p = names_protocol(class, subclass, protocol);
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if (!p)
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p = "unknown protocol";
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s = names_subclass(class, subclass);
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if (!s)
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s = "unknown subclass";
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c = names_class(class);
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if (!c)
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c = "unknown class";
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snprintf(buff, size, "%s / %s / %s (%02x/%02x/%02x)", c, s, p, class, subclass, protocol);
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}
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