mirror of
https://gitea.osmocom.org/sim-card/simtrace2.git
synced 2026-03-16 21:28:33 +03:00
migrate to libosmousb
the code we used to have in libusb_util.c has been migrated to libosmousb, a new part of libosmocore.git. Let's remove our historic copy and use the new shared library instead. Change-Id: Ib588c08f873c4da8f3a02815ee2767674a6a5061
This commit is contained in:
Harald Welte
@@ -15,5 +15,4 @@ libosmo_simtrace2_la_LIBADD = $(COMMONLIBS)
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libosmo_simtrace2_la_SOURCES = \
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apdu_dispatch.c \
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gsmtap.c \
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libusb_util.c \
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simtrace2_api.c
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@@ -1,338 +0,0 @@
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/* libusb utilities
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*
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* (C) 2010-2019 by Harald Welte <hwelte@hmw-consulting.de>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <errno.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <libusb.h>
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#include <osmocom/simtrace2/libusb_util.h>
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static char path_buf[USB_MAX_PATH_LEN];
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static char *get_path(libusb_device *dev)
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{
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#if (defined(LIBUSB_API_VERSION) && LIBUSB_API_VERSION >= 0x01000102) || (defined(LIBUSBX_API_VERSION) && LIBUSBX_API_VERSION >= 0x01000102)
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uint8_t path[8];
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int r,j;
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r = libusb_get_port_numbers(dev, path, sizeof(path));
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if (r > 0) {
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sprintf(path_buf,"%d-%d",libusb_get_bus_number(dev),path[0]);
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for (j = 1; j < r; j++){
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sprintf(path_buf+strlen(path_buf),".%d",path[j]);
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};
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}
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return path_buf;
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#else
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# warning "libusb too old - building without USB path support!"
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return NULL;
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#endif
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}
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static int match_dev_id(const struct libusb_device_descriptor *desc, const struct dev_id *id)
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{
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if ((desc->idVendor == id->vendor_id) && (desc->idProduct == id->product_id))
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return 1;
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return 0;
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}
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static int match_dev_ids(const struct libusb_device_descriptor *desc, const struct dev_id *ids)
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{
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const struct dev_id *id;
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for (id = ids; id->vendor_id || id->product_id; id++) {
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if (match_dev_id(desc, id))
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return 1;
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}
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return 0;
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}
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libusb_device **find_matching_usb_devs(const struct dev_id *dev_ids)
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{
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libusb_device **list;
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libusb_device **out = calloc(256, sizeof(libusb_device *));
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libusb_device **cur = out;
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unsigned int i;
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int rc;
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if (!out)
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return NULL;
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rc = libusb_get_device_list(NULL, &list);
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if (rc <= 0) {
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perror("No USB devices found");
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free(out);
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return NULL;
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}
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for (i = 0; list[i] != NULL; i++) {
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struct libusb_device_descriptor dev_desc;
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libusb_device *dev = list[i];
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rc = libusb_get_device_descriptor(dev, &dev_desc);
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if (rc < 0) {
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perror("Couldn't get device descriptor\n");
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libusb_unref_device(dev);
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continue;
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}
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if (match_dev_ids(&dev_desc, dev_ids)) {
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*cur = dev;
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cur++;
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/* FIXME: overflow check */
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} else
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libusb_unref_device(dev);
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}
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if (cur == out) {
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libusb_free_device_list(list, 1);
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free(out);
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return NULL;
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}
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libusb_free_device_list(list, 0);
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return out;
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}
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int dev_find_matching_interfaces(libusb_device *dev, int class, int sub_class, int protocol,
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struct usb_interface_match *out, unsigned int out_len)
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{
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struct libusb_device_descriptor dev_desc;
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int rc, i, out_idx = 0;
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uint8_t addr;
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char *path;
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rc = libusb_get_device_descriptor(dev, &dev_desc);
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if (rc < 0) {
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perror("Couldn't get device descriptor\n");
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return -EIO;
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}
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addr = libusb_get_device_address(dev);
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path = get_path(dev);
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/* iterate over all configurations */
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for (i = 0; i < dev_desc.bNumConfigurations; i++) {
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struct libusb_config_descriptor *conf_desc;
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int j;
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rc = libusb_get_config_descriptor(dev, i, &conf_desc);
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if (rc < 0) {
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fprintf(stderr, "Couldn't get config descriptor %u\n", i);
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continue;
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}
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/* iterate over all interfaces */
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for (j = 0; j < conf_desc->bNumInterfaces; j++) {
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const struct libusb_interface *intf = &conf_desc->interface[j];
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int k;
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/* iterate over all alternate settings */
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for (k = 0; k < intf->num_altsetting; k++) {
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const struct libusb_interface_descriptor *if_desc;
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if_desc = &intf->altsetting[k];
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if (class >= 0 && if_desc->bInterfaceClass != class)
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continue;
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if (sub_class >= 0 && if_desc->bInterfaceSubClass != sub_class)
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continue;
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if (protocol >= 0 && if_desc->bInterfaceProtocol != protocol)
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continue;
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/* MATCH! */
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out[out_idx].usb_dev = dev;
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out[out_idx].vendor = dev_desc.idVendor;
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out[out_idx].product = dev_desc.idProduct;
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out[out_idx].addr = addr;
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strncpy(out[out_idx].path, path, sizeof(out[out_idx].path)-1);
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out[out_idx].path[sizeof(out[out_idx].path)-1] = '\0';
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out[out_idx].configuration = conf_desc->bConfigurationValue;
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out[out_idx].interface = if_desc->bInterfaceNumber;
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out[out_idx].altsetting = if_desc->bAlternateSetting;
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out[out_idx].class = if_desc->bInterfaceClass;
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out[out_idx].sub_class = if_desc->bInterfaceSubClass;
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out[out_idx].protocol = if_desc->bInterfaceProtocol;
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out[out_idx].string_idx = if_desc->iInterface;
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out_idx++;
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if (out_idx >= out_len)
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return out_idx;
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}
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}
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}
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return out_idx;
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}
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int usb_match_interfaces(libusb_context *ctx, const struct dev_id *dev_ids,
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int class, int sub_class, int protocol,
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struct usb_interface_match *out, unsigned int out_len)
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{
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struct usb_interface_match *out_cur = out;
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unsigned int out_len_remain = out_len;
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libusb_device **list;
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libusb_device **dev;
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list = find_matching_usb_devs(dev_ids);
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if (!list)
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return 0;
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for (dev = list; *dev; dev++) {
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int rc;
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#if 0
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struct libusb_device_descriptor dev_desc;
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uint8_t ports[8];
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uint8_t addr;
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rc = libusb_get_device_descriptor(*dev, &dev_desc);
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if (rc < 0) {
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perror("Cannot get device descriptor");
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continue;
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}
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addr = libusb_get_device_address(*dev);
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rc = libusb_get_port_numbers(*dev, ports, sizeof(ports));
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if (rc < 0) {
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perror("Cannot get device path");
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continue;
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}
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printf("Found USB Device %04x:%04x at address %d\n",
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dev_desc.idVendor, dev_desc.idProduct, addr);
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#endif
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rc = dev_find_matching_interfaces(*dev, class, sub_class, protocol, out_cur, out_len_remain);
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if (rc < 0)
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continue;
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out_cur += rc;
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out_len_remain -= rc;
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}
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return out_len - out_len_remain;
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}
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libusb_device_handle *usb_open_claim_interface(libusb_context *ctx,
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const struct usb_interface_match *ifm)
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{
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int rc, config;
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struct dev_id dev_ids[] = { { ifm->vendor, ifm->product }, { 0, 0 } };
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libusb_device **list;
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libusb_device **dev;
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libusb_device_handle *usb_devh = NULL;
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list = find_matching_usb_devs(dev_ids);
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if (!list) {
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perror("No USB device with matching VID/PID");
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return NULL;
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}
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for (dev = list; *dev; dev++) {
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int addr;
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char *path;
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addr = libusb_get_device_address(*dev);
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path = get_path(*dev);
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if ((ifm->addr && addr == ifm->addr) ||
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(strlen(ifm->path) && !strcmp(path, ifm->path))) {
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rc = libusb_open(*dev, &usb_devh);
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if (rc < 0) {
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fprintf(stderr, "Cannot open device: %s\n", libusb_error_name(rc));
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usb_devh = NULL;
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break;
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}
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rc = libusb_get_configuration(usb_devh, &config);
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if (rc < 0) {
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fprintf(stderr, "Cannot get current configuration: %s\n", libusb_error_name(rc));
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libusb_close(usb_devh);
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usb_devh = NULL;
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break;
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}
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if (config != ifm->configuration) {
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rc = libusb_set_configuration(usb_devh, ifm->configuration);
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if (rc < 0) {
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fprintf(stderr, "Cannot set configuration: %s\n", libusb_error_name(rc));
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libusb_close(usb_devh);
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usb_devh = NULL;
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break;
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}
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}
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rc = libusb_claim_interface(usb_devh, ifm->interface);
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if (rc < 0) {
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fprintf(stderr, "Cannot claim interface: %s\n", libusb_error_name(rc));
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libusb_close(usb_devh);
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usb_devh = NULL;
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break;
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}
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rc = libusb_set_interface_alt_setting(usb_devh, ifm->interface, ifm->altsetting);
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if (rc < 0) {
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fprintf(stderr, "Cannot set interface altsetting: %s\n", libusb_error_name(rc));
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libusb_release_interface(usb_devh, ifm->interface);
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libusb_close(usb_devh);
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usb_devh = NULL;
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break;
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}
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}
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}
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/* unref / free list */
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for (dev = list; *dev; dev++)
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libusb_unref_device(*dev);
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free(list);
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return usb_devh;
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}
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/*! \brief obtain the endpoint addresses for a given USB interface */
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int get_usb_ep_addrs(libusb_device_handle *devh, unsigned int if_num,
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uint8_t *out, uint8_t *in, uint8_t *irq)
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{
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libusb_device *dev = libusb_get_device(devh);
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struct libusb_config_descriptor *cdesc;
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const struct libusb_interface_descriptor *idesc;
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const struct libusb_interface *iface;
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int rc, l;
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rc = libusb_get_active_config_descriptor(dev, &cdesc);
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if (rc < 0)
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return rc;
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iface = &cdesc->interface[if_num];
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/* FIXME: we assume there's no altsetting */
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idesc = &iface->altsetting[0];
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for (l = 0; l < idesc->bNumEndpoints; l++) {
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const struct libusb_endpoint_descriptor *edesc = &idesc->endpoint[l];
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switch (edesc->bmAttributes & 3) {
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case LIBUSB_TRANSFER_TYPE_BULK:
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if (edesc->bEndpointAddress & 0x80) {
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if (in)
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*in = edesc->bEndpointAddress;
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} else {
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if (out)
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*out = edesc->bEndpointAddress;
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}
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break;
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case LIBUSB_TRANSFER_TYPE_INTERRUPT:
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if (irq)
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*irq = edesc->bEndpointAddress;
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break;
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default:
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break;
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}
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}
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return 0;
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}
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