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pam_usb
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Delete hal.c in prep for udisks2 merge

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IGP 8 years ago
committed by GitHub
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1 changed files with 0 additions and 345 deletions
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      src/hal.c

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@ -1,345 +0,0 @@
/*
* Copyright (c) 2003-2007 Andrea Luzzardi <scox@sig11.org>
*
* This file is part of the pam_usb project. pam_usb is free software;
* you can redistribute it and/or modify it under the terms of the GNU General
* Public License version 2, as published by the Free Software Foundation.
*
* pam_usb 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
* Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <unistd.h>
#include <sys/types.h>
#include "mem.h"
#include "log.h"
#include "hal.h"
DBusConnection *pusb_hal_dbus_connect(void)
{
DBusConnection *dbus = NULL;
DBusError error;
dbus_error_init(&error);
if (!(dbus = dbus_bus_get(DBUS_BUS_SYSTEM, &error)))
{
/* Workaround for https://bugs.freedesktop.org/show_bug.cgi?id=11876 */
uid_t ruid;
uid_t euid;
if (!(euid = geteuid()) && (ruid = getuid()))
{
dbus_error_free(&error);
setreuid(euid, euid);
dbus = dbus_bus_get(DBUS_BUS_SYSTEM, &error);
setreuid(ruid, euid);
}
if (!dbus)
{
log_error("Cannot connect to system bus: %s\n",
error.message);
dbus_error_free(&error);
return (NULL);
}
}
return (dbus);
}
void pusb_hal_dbus_disconnect(DBusConnection *dbus)
{
dbus_connection_unref(dbus);
}
void pusb_hal_free_string_array(char **str_array, int length)
{
int i;
if (str_array == NULL)
return ;
for (i = 0; i < length; ++i)
xfree(str_array[i]);
xfree(str_array);
}
char **pusb_hal_get_string_array_from_iter(DBusMessageIter *iter, int *num_elements)
{
int count;
char **buffer;
count = 0;
buffer = (char **)xmalloc(sizeof(char *) * 8);
buffer[0] = NULL;
while (dbus_message_iter_get_arg_type(iter) == DBUS_TYPE_STRING ||
dbus_message_iter_get_arg_type(iter) == DBUS_TYPE_OBJECT_PATH)
{
const char *value;
if ((count % 8) == 0 && count != 0) {
buffer = xrealloc(buffer, sizeof (char *) * (count + 8));
}
dbus_message_iter_get_basic(iter, &value);
buffer[count] = xstrdup(value);
dbus_message_iter_next(iter);
count++;
}
if (num_elements != NULL)
*num_elements = count;
return buffer;
}
DBusMessage *pusb_hal_get_raw_property(DBusConnection *dbus,
const char *udi,
const char *name)
{
DBusMessage *message;
DBusMessage *reply;
DBusMessageIter iter;
DBusError error;
char *iface = "org.freedesktop.UDisks.Device";
message = dbus_message_new_method_call("org.freedesktop.UDisks", udi,
"org.freedesktop.DBus.Properties",
"Get");
if (message == NULL) {
log_error("Could not allocate D-BUS message\n");
return (NULL);
}
dbus_message_iter_init_append(message, &iter);
dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &iface);
dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &name);
dbus_error_init(&error);
reply = dbus_connection_send_with_reply_and_block(dbus,
message, -1,
&error);
dbus_message_unref(message);
if (dbus_error_is_set(&error)) {
log_error("Error communicating with D-BUS\n");
return (NULL);
}
dbus_error_free(&error);
return (reply);
}
char *pusb_hal_get_string_property(DBusConnection *dbus,
const char *udi,
const char *name)
{
DBusMessage *reply;
DBusMessageIter reply_iter;
char *data;
char *dbus_str;
reply = pusb_hal_get_raw_property(dbus, udi, name);
if (reply == NULL) {
return (NULL);
}
dbus_message_iter_init(reply, &reply_iter);
if (dbus_message_iter_get_arg_type(&reply_iter) != DBUS_TYPE_VARIANT)
{
dbus_message_unref(reply);
return (NULL);
}
DBusMessageIter subiter;
dbus_message_iter_recurse(&reply_iter, &subiter);
dbus_message_iter_get_basic(&subiter, &dbus_str);
if (dbus_str != NULL)
data = xstrdup(dbus_str);
dbus_message_unref(reply);
return (data);
}
char **pusb_hal_get_string_array_property(DBusConnection *dbus,
const char *udi,
const char *name,
int *n_items)
{
DBusMessage *reply;
DBusMessageIter reply_iter;
char **items;
reply = pusb_hal_get_raw_property(dbus, udi, name);
if (reply == NULL) {
return (NULL);
}
dbus_message_iter_init(reply, &reply_iter);
if (dbus_message_iter_get_arg_type(&reply_iter) != DBUS_TYPE_VARIANT)
{
dbus_message_unref(reply);
return (NULL);
}
DBusMessageIter subiter, subsubiter;
dbus_message_iter_recurse(&reply_iter, &subiter);
dbus_message_iter_recurse(&subiter, &subsubiter);
items = pusb_hal_get_string_array_from_iter(&subsubiter, n_items);
dbus_message_unref(reply);
if (!*n_items)
{
pusb_hal_free_string_array(items, *n_items);
return (NULL);
}
return (items);
}
int pusb_hal_get_bool_property(DBusConnection *dbus,
const char *udi,
const char *name,
dbus_bool_t *value)
{
DBusMessage *reply;
DBusMessageIter reply_iter;
reply = pusb_hal_get_raw_property(dbus, udi, name);
if (reply == NULL) {
return (0);
}
dbus_message_iter_init(reply, &reply_iter);
if (dbus_message_iter_get_arg_type(&reply_iter) !=
DBUS_TYPE_VARIANT)
{
dbus_message_unref(reply);
return (0);
}
DBusMessageIter subiter;
dbus_message_iter_recurse(&reply_iter, &subiter);
dbus_message_iter_get_basic(&subiter, value);
dbus_message_unref(reply);
return (1);
}
int pusb_hal_check_property(DBusConnection *dbus,
const char *udi,
const char *name,
const char *value)
{
char *data;
int retval;
data = pusb_hal_get_string_property(dbus, udi, name);
if (!data)
return (0);
retval = (strcmp(data, value) == 0);
xfree(data);
return (retval);
}
char **pusb_hal_find_all_items(DBusConnection *dbus, int *count)
{
DBusError error;
DBusMessage *message;
DBusMessage *reply;
DBusMessageIter iter_array, reply_iter;
char **devices;
int n_devices;
*count = 0;
message = dbus_message_new_method_call("org.freedesktop.UDisks",
"/org/freedesktop/UDisks",
"org.freedesktop.UDisks",
"EnumerateDevices");
if (message == NULL)
{
log_error("Couldn't allocate D-BUS message\n");
return (NULL);
}
dbus_error_init(&error);
reply = dbus_connection_send_with_reply_and_block(dbus,
message, -1,
&error);
dbus_message_unref(message);
if (dbus_error_is_set(&error)) {
log_error("Error communicating with D-BUS\n");
return (NULL);
}
if (reply == NULL) {
return (NULL);
}
dbus_message_iter_init(reply, &reply_iter);
if (dbus_message_iter_get_arg_type(&reply_iter) != DBUS_TYPE_ARRAY) {
log_error("Malformed D-BUS reply");
return (NULL);
}
dbus_message_iter_recurse(&reply_iter, &iter_array);
devices = pusb_hal_get_string_array_from_iter(&iter_array, &n_devices);
dbus_message_unref(reply);
if (!n_devices)
{
pusb_hal_free_string_array(devices, n_devices);
return (NULL);
}
*count = n_devices;
return (devices);
}
char *pusb_hal_find_item(DBusConnection *dbus,
...)
{
char **devices;
int n_devices;
char *udi = NULL;
va_list ap;
int i;
devices = pusb_hal_find_all_items(dbus, &n_devices);
if (!devices)
return (NULL);
if (!n_devices)
return (NULL);
for (i = 0; i < n_devices; ++i)
{
char *key = NULL;
int match = 1;
va_start(ap, dbus);
while ((key = va_arg(ap, char *)))
{
char *value = NULL;
value = va_arg(ap, char *);
if (!value || *value == 0x0)
continue ;
if (!pusb_hal_check_property(dbus, devices[i],
key, value))
{
match = 0;
break;
}
}
if (match)
{
udi = xstrdup(devices[i]);
break;
}
va_end(ap);
}
pusb_hal_free_string_array(devices, n_devices);
return (udi);
}

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