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authorShuah Khan <shuahkh@osg.samsung.com>2018-03-07 13:42:24 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-09 09:17:08 -0800
commitf6bcbf2e24eb10275b6614ccd9cab3e7d93748de (patch)
tree4cb8581885359c7503e6c16144e7561c133820d9 /tools/usb
parent8fe8f5821c4ebd1c80099ff0d2b197fd17581a2c (diff)
downloadlinux-f6bcbf2e24eb10275b6614ccd9cab3e7d93748de.tar.bz2
usbip: tools: add more error codes for usbip request/reply messages
Currently ST_OK and ST_NA are the only values defined to communicate status of a request from a client. Add more error codes to clearly indicate what failed. For example, when client sends request to import a device that isn't export-able, server can send a specific error code to the client. Existing defines are moved to a common header in libsrc to be included in the libusbip_la-usbip_common.o to be used by all the usbip tools. Supporting interface to print error strings is added to the common lib. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/usb')
-rw-r--r--tools/usb/usbip/libsrc/usbip_common.c23
-rw-r--r--tools/usb/usbip/libsrc/usbip_common.h11
-rw-r--r--tools/usb/usbip/src/usbip_network.h4
3 files changed, 35 insertions, 3 deletions
diff --git a/tools/usb/usbip/libsrc/usbip_common.c b/tools/usb/usbip/libsrc/usbip_common.c
index 001bb8e8f668..bb424638d75b 100644
--- a/tools/usb/usbip/libsrc/usbip_common.c
+++ b/tools/usb/usbip/libsrc/usbip_common.c
@@ -66,6 +66,29 @@ const char *usbip_speed_string(int num)
return "Unknown Speed";
}
+struct op_common_status_string {
+ int num;
+ char *desc;
+};
+
+static struct op_common_status_string op_common_status_strings[] = {
+ { ST_OK, "Request Completed Successfully" },
+ { ST_NA, "Request Failed" },
+ { ST_DEV_BUSY, "Device busy (exported)" },
+ { ST_DEV_ERR, "Device in error state" },
+ { ST_NODEV, "Device not found" },
+ { ST_ERROR, "Unexpected response" },
+ { 0, NULL}
+};
+
+const char *usbip_op_common_status_string(int status)
+{
+ for (int i = 0; op_common_status_strings[i].desc != NULL; i++)
+ if (op_common_status_strings[i].num == status)
+ return op_common_status_strings[i].desc;
+
+ return "Unknown Op Common Status";
+}
#define DBG_UDEV_INTEGER(name)\
dbg("%-20s = %x", to_string(name), (int) udev->name)
diff --git a/tools/usb/usbip/libsrc/usbip_common.h b/tools/usb/usbip/libsrc/usbip_common.h
index e45ec9d2fdbc..73a367a7fa10 100644
--- a/tools/usb/usbip/libsrc/usbip_common.h
+++ b/tools/usb/usbip/libsrc/usbip_common.h
@@ -43,6 +43,16 @@
#define SYSFS_PATH_MAX 256
#define SYSFS_BUS_ID_SIZE 32
+/* Defines for op_code status in server/client op_common PDUs */
+#define ST_OK 0x00
+#define ST_NA 0x01
+ /* Device requested for import is not available */
+#define ST_DEV_BUSY 0x02
+ /* Device requested for import is in error state */
+#define ST_DEV_ERR 0x03
+#define ST_NODEV 0x04
+#define ST_ERROR 0x05
+
extern int usbip_use_syslog;
extern int usbip_use_stderr;
extern int usbip_use_debug ;
@@ -130,6 +140,7 @@ int read_usb_interface(struct usbip_usb_device *udev, int i,
const char *usbip_speed_string(int num);
const char *usbip_status_string(int32_t status);
+const char *usbip_op_common_status_string(int status);
int usbip_names_init(char *);
void usbip_names_free(void);
diff --git a/tools/usb/usbip/src/usbip_network.h b/tools/usb/usbip/src/usbip_network.h
index 7032687621d3..b6a2f9be888c 100644
--- a/tools/usb/usbip/src/usbip_network.h
+++ b/tools/usb/usbip/src/usbip_network.h
@@ -27,9 +27,7 @@ struct op_common {
#define OP_REPLY (0x00 << 8)
uint16_t code;
- /* add more error code */
-#define ST_OK 0x00
-#define ST_NA 0x01
+ /* status codes defined in usbip_common.h */
uint32_t status; /* op_code status (for reply) */
} __attribute__((packed));