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/*
* HardInfo - Displays System Information
* Copyright (C) 2003-2017 Leandro A. F. Pereira <leandro@hardinfo.org>
* This file
* Copyright (C) 2017 Burt P. <pburt0@gmail.com>
*
* 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, version 2.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "hardinfo.h"
#include "usb_util.h"
usbi *usbi_new() {
return g_new0(usbi, 1);
}
void usbi_free(usbi *s) {
if (s) {
g_free(s->if_class_str);
g_free(s->if_subclass_str);
g_free(s->if_protocol_str);
g_free(s);
}
}
void usbi_list_free(usbi *s) {
usbi *n;
while(s != NULL) {
n = s->next;
usbi_free(s);
s = n;
}
}
usbd *usbd_new() {
return g_new0(usbd, 1);
}
void usbd_free(usbd *s) {
if (s) {
usbi_list_free(s->if_list);
g_free(s->vendor);
g_free(s->product);
g_free(s->usb_version);
g_free(s->device_version);
g_free(s->dev_class_str);
g_free(s->dev_subclass_str);
g_free(s);
}
}
void usbd_list_free(usbd *s) {
usbd *n;
while(s != NULL) {
n = s->next;
usbd_free(s);
s = n;
}
}
/* returns number of items after append */
static int usbd_list_append(usbd *l, usbd *n) {
int c = 0;
while(l != NULL) {
c++;
if (l->next == NULL) {
if (n != NULL) {
l->next = n;
c++;
}
break;
}
l = l->next;
}
return c;
}
void usbd_append_interface(usbd *dev, usbi *new_if){
usbi *curr_if;
if (dev->if_list == NULL){
dev->if_list = new_if;
return;
}
curr_if = dev->if_list;
while(curr_if->next != NULL) {
curr_if = curr_if->next;
}
curr_if->next = new_if;
}
int usbd_list_count(usbd *s) {
return usbd_list_append(s, NULL);
}
static char *lsusb_line_value(char *line, const char *prefix) {
if (g_str_has_prefix(line, prefix)) {
line += strlen(prefix) + 1;
return g_strstrip(line);
} else
return NULL;
}
static gboolean usb_get_device_lsusb(int bus, int dev, usbd *s) {
gboolean spawned;
gchar *out, *err, *p, *l, *t, *next_nl;
gchar *lsusb_cmd = g_strdup_printf("lsusb -s %d:%d -v", bus, dev);
usbi *curr_if = NULL; // do not free
s->bus = bus;
s->dev = dev;
spawned = g_spawn_command_line_sync(lsusb_cmd,
&out, &err, NULL, NULL);
g_free(lsusb_cmd);
if (spawned) {
if (strstr(err, "information will be missing")) {
s->user_scan = TRUE;
}
p = out;
while(next_nl = strchr(p, '\n')) {
strend(p, '\n');
g_strstrip(p);
// device info
if (l = lsusb_line_value(p, "idVendor")) {
s->vendor_id = strtol(l, NULL, 0);
if (t = strchr(l, ' '))
s->vendor = g_strdup(t + 1);
} else if (l = lsusb_line_value(p, "idProduct")) {
s->product_id = strtol(l, NULL, 0);
if (t = strchr(l, ' '))
s->product = g_strdup(t + 1);
} else if (l = lsusb_line_value(p, "MaxPower")) {
s->max_curr_ma = atoi(l);
} else if (l = lsusb_line_value(p, "bcdUSB")) {
s->usb_version = g_strdup(l);
} else if (l = lsusb_line_value(p, "bcdDevice")) {
s->device_version = g_strdup(l);
} else if (l = lsusb_line_value(p, "bDeviceClass")) {
s->dev_class = atoi(l);
if (t = strchr(l, ' '))
s->dev_class_str = g_strdup(t + 1);
} else if (l = lsusb_line_value(p, "bDeviceSubClass")) {
s->dev_subclass = atoi(l);
if (t = strchr(l, ' '))
s->dev_subclass_str = g_strdup(t + 1);
// interface info
} else if (l = lsusb_line_value(p, "bInterfaceNumber")) {
curr_if = usbi_new();
curr_if->if_number = atoi(l);
usbd_append_interface(s, curr_if);
} else if (l = lsusb_line_value(p, "bInterfaceClass")) {
if (curr_if != NULL){
curr_if->if_class = atoi(l);
if (t = strchr(l, ' '))
curr_if->if_class_str = g_strdup(t + 1);
}
} else if (l = lsusb_line_value(p, "bInterfaceSubClass")) {
if (curr_if != NULL){
curr_if->if_subclass = atoi(l);
if (t = strchr(l, ' '))
curr_if->if_subclass_str = g_strdup(t + 1);
}
} else if (l = lsusb_line_value(p, "bInterfaceProtocol")) {
if (curr_if != NULL){
curr_if->if_protocol = atoi(l);
if (t = strchr(l, ' '))
curr_if->if_protocol_str = g_strdup(t + 1);
}
}
/* TODO: speed_mbs, improve interfaces
* WISHLIST: drivers */
p = next_nl + 1;
}
g_free(out);
g_free(err);
return TRUE;
}
return FALSE;
}
usbd *usb_get_device(int bus, int dev) {
usbd *s = usbd_new();
int ok = 0;
if (s) {
/* try lsusb */
ok = usb_get_device_lsusb(bus, dev, s);
/* TODO: other methods */
if (!ok) {
usbd_free(s);
s = NULL;
}
}
return s;
}
static usbd *usb_get_device_list_lsusb() {
gboolean spawned;
gchar *out, *err, *p, *next_nl;
usbd *head = NULL, *nd;
int bus, dev, vend, prod, ec;
spawned = g_spawn_command_line_sync("lsusb",
&out, &err, NULL, NULL);
if (spawned) {
p = out;
while(next_nl = strchr(p, '\n')) {
strend(p, '\n');
ec = sscanf(p, "Bus %d Device %d: ID %x:%x", &bus, &dev, &vend, &prod);
if (ec == 4) {
nd = usb_get_device(bus, dev);
if (head == NULL) {
head = nd;
} else {
usbd_list_append(head, nd);
}
}
p = next_nl + 1;
}
g_free(out);
g_free(err);
}
return head;
}
usbd *usb_get_device_list() {
/* try lsusb */
return usb_get_device_list_lsusb();
/* TODO: other methods */
}
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