[PATCH v3] staging: usbip: userspace: add support for viewing imported devices
Valentina Manea
valentina.manea.m at gmail.com
Tue Dec 24 08:27:34 UTC 2013
As of Matt Mooney's major refactoring in 2011, usbip port
option was left out. Add support for this option in
a manner similar to the old implementation.
Sample output:
Imported USB devices
====================
Port 00: <Port in Use> at Full Speed(12Mbps)
unknown vendor : unknown product (1687:6211)
2-1 -> usbip://192.168.122.152:3240/1-1
-> remote bus/dev 001/002
Signed-off-by: Valentina Manea <valentina.manea.m at gmail.com>
---
Changes since v2:
* fix trailing whitespace error
* change commit title to reflect that this is a userspace patch
.../staging/usbip/userspace/libsrc/vhci_driver.c | 67 ++++++++++++++++++++++
.../staging/usbip/userspace/libsrc/vhci_driver.h | 2 +
drivers/staging/usbip/userspace/src/Makefile.am | 2 +-
drivers/staging/usbip/userspace/src/usbip.c | 6 ++
drivers/staging/usbip/userspace/src/usbip.h | 1 +
drivers/staging/usbip/userspace/src/usbip_port.c | 57 ++++++++++++++++++
6 files changed, 134 insertions(+), 1 deletion(-)
create mode 100644 drivers/staging/usbip/userspace/src/usbip_port.c
diff --git a/drivers/staging/usbip/userspace/libsrc/vhci_driver.c b/drivers/staging/usbip/userspace/libsrc/vhci_driver.c
index 241006a..209df9b 100644
--- a/drivers/staging/usbip/userspace/libsrc/vhci_driver.c
+++ b/drivers/staging/usbip/userspace/libsrc/vhci_driver.c
@@ -4,6 +4,8 @@
#include "usbip_common.h"
#include "vhci_driver.h"
+#include <limits.h>
+#include <netdb.h>
#undef PROGNAME
#define PROGNAME "libusbip"
@@ -337,6 +339,29 @@ err:
return -1;
}
+static int read_record(int rhport, char *host, char *port, char *busid)
+{
+ FILE *file;
+ char path[PATH_MAX+1];
+
+ snprintf(path, PATH_MAX, VHCI_STATE_PATH"/port%d", rhport);
+
+ file = fopen(path, "r");
+ if (!file) {
+ err("fopen");
+ return -1;
+ }
+
+ if (fscanf(file, "%s %s %s\n", host, port, busid) != 3) {
+ err("fscanf");
+ fclose(file);
+ return -1;
+ }
+
+ fclose(file);
+
+ return 0;
+}
/* ---------------------------------------------------------------------- */
@@ -535,3 +560,45 @@ int usbip_vhci_detach_device(uint8_t port)
return 0;
}
+
+int usbip_vhci_imported_device_dump(struct usbip_imported_device *idev)
+{
+ char product_name[100];
+ char host[NI_MAXHOST] = "unknown host";
+ char serv[NI_MAXSERV] = "unknown port";
+ char remote_busid[SYSFS_BUS_ID_SIZE];
+ int ret;
+ int read_record_error = 0;
+
+ if (idev->status == VDEV_ST_NULL || idev->status == VDEV_ST_NOTASSIGNED)
+ return 0;
+
+ ret = read_record(idev->port, host, serv, remote_busid);
+ if (ret) {
+ err("read_record");
+ read_record_error = 1;
+ }
+
+ printf("Port %02d: <%s> at %s\n", idev->port,
+ usbip_status_string(idev->status),
+ usbip_speed_string(idev->udev.speed));
+
+ usbip_names_get_product(product_name, sizeof(product_name),
+ idev->udev.idVendor, idev->udev.idProduct);
+
+ printf(" %s\n", product_name);
+
+ if (!read_record_error) {
+ printf("%10s -> usbip://%s:%s/%s\n", idev->udev.busid,
+ host, serv, remote_busid);
+ printf("%10s -> remote bus/dev %03d/%03d\n", " ",
+ idev->busnum, idev->devnum);
+ } else {
+ printf("%10s -> unknown host, remote port and remote busid\n",
+ idev->udev.busid);
+ printf("%10s -> remote bus/dev %03d/%03d\n", " ",
+ idev->busnum, idev->devnum);
+ }
+
+ return 0;
+}
diff --git a/drivers/staging/usbip/userspace/libsrc/vhci_driver.h b/drivers/staging/usbip/userspace/libsrc/vhci_driver.h
index 89949aa..e071f80 100644
--- a/drivers/staging/usbip/userspace/libsrc/vhci_driver.h
+++ b/drivers/staging/usbip/userspace/libsrc/vhci_driver.h
@@ -64,4 +64,6 @@ int usbip_vhci_attach_device(uint8_t port, int sockfd, uint8_t busnum,
int usbip_vhci_detach_device(uint8_t port);
+int usbip_vhci_imported_device_dump(struct usbip_imported_device *idev);
+
#endif /* __VHCI_DRIVER_H */
diff --git a/drivers/staging/usbip/userspace/src/Makefile.am b/drivers/staging/usbip/userspace/src/Makefile.am
index a113003..b4f8c4b 100644
--- a/drivers/staging/usbip/userspace/src/Makefile.am
+++ b/drivers/staging/usbip/userspace/src/Makefile.am
@@ -6,7 +6,7 @@ sbin_PROGRAMS := usbip usbipd
usbip_SOURCES := usbip.h utils.h usbip.c utils.c usbip_network.c \
usbip_attach.c usbip_detach.c usbip_list.c \
- usbip_bind.c usbip_unbind.c
+ usbip_bind.c usbip_unbind.c usbip_port.c
usbipd_SOURCES := usbip_network.h usbipd.c usbip_network.c
diff --git a/drivers/staging/usbip/userspace/src/usbip.c b/drivers/staging/usbip/userspace/src/usbip.c
index 04a5f20..d7599d9 100644
--- a/drivers/staging/usbip/userspace/src/usbip.c
+++ b/drivers/staging/usbip/userspace/src/usbip.c
@@ -93,6 +93,12 @@ static const struct command cmds[] = {
.help = "Unbind device from " USBIP_HOST_DRV_NAME ".ko",
.usage = usbip_unbind_usage
},
+ {
+ .name = "port",
+ .fn = usbip_port_show,
+ .help = "Show imported USB devices",
+ .usage = NULL
+ },
{ NULL, NULL, NULL, NULL }
};
diff --git a/drivers/staging/usbip/userspace/src/usbip.h b/drivers/staging/usbip/userspace/src/usbip.h
index 14d4a47..84fe66a 100644
--- a/drivers/staging/usbip/userspace/src/usbip.h
+++ b/drivers/staging/usbip/userspace/src/usbip.h
@@ -29,6 +29,7 @@ int usbip_detach(int argc, char *argv[]);
int usbip_list(int argc, char *argv[]);
int usbip_bind(int argc, char *argv[]);
int usbip_unbind(int argc, char *argv[]);
+int usbip_port_show(int argc, char *argv[]);
void usbip_attach_usage(void);
void usbip_detach_usage(void);
diff --git a/drivers/staging/usbip/userspace/src/usbip_port.c b/drivers/staging/usbip/userspace/src/usbip_port.c
new file mode 100644
index 0000000..52aa168
--- /dev/null
+++ b/drivers/staging/usbip/userspace/src/usbip_port.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2011 matt mooney <mfm at muteddisk.com>
+ * 2005-2007 Takahiro Hirofuchi
+ *
+ * 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.
+ */
+
+#include "vhci_driver.h"
+#include "usbip_common.h"
+
+static int list_imported_devices()
+{
+ int i;
+ struct usbip_imported_device *idev;
+ int ret;
+
+ ret = usbip_vhci_driver_open();
+ if (ret < 0) {
+ err("open vhci_driver");
+ return -1;
+ }
+
+ printf("Imported USB devices\n");
+ printf("====================\n");
+
+ for (i = 0; i < vhci_driver->nports; i++) {
+ idev = &vhci_driver->idev[i];
+
+ if (usbip_vhci_imported_device_dump(idev) < 0)
+ ret = -1;
+ }
+
+ usbip_vhci_driver_close();
+
+ return ret;
+
+}
+
+int usbip_port_show(__attribute__((unused)) int argc,
+ __attribute__((unused)) char *argv[])
+{
+ int ret;
+
+ ret = list_imported_devices();
+ if (ret < 0)
+ err("list imported devices");
+
+ return ret;
+}
--
1.8.1.2
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