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/*
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* Copyright (c) 2003-2007 Andrea Luzzardi <scox@sig11.org>
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*
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* This file is part of the pam_usb project. pam_usb is free software;
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* you can redistribute it and/or modify it under the terms of the GNU General
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* Public License version 2, as published by the Free Software Foundation.
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*
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* pam_usb is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/mount.h>
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#include <libhal-storage.h>
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#include "conf.h"
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#include "log.h"
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#include "hal.h"
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#include "volume.h"
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static int pusb_volume_mount(t_pusb_options *opts, LibHalVolume **volume,
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LibHalContext *ctx)
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{
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char command[1024];
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char tempname[32];
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const char *devname;
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const char *udi;
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const char *fs;
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snprintf(tempname, sizeof(tempname), "pam_usb%d", getpid());
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if (!(devname = libhal_volume_get_device_file(*volume)))
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{
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log_error("Unable to retrieve device filename\n");
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return (0);
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}
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fs = libhal_volume_get_fstype(*volume);
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log_debug("Attempting to mount device %s with label %s\n",
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devname, tempname);
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if (!fs)
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snprintf(command, sizeof(command), "pmount -s %s %s",
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devname, tempname);
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else
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snprintf(command, sizeof(command), "pmount -s -t %s %s %s",
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fs, devname, tempname);
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log_debug("Executing \"%s\"\n", command);
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if (system(command) != 0)
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{
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log_error("Mount failed\n");
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return (0);
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}
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udi = libhal_volume_get_udi(*volume);
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if (!udi)
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{
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log_error("Unable to retrieve volume UDI\n");
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return (0);
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}
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udi = strdup(udi);
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libhal_volume_free(*volume);
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*volume = libhal_volume_from_udi(ctx, udi);
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free((char *)udi);
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log_debug("Mount succeeded.\n");
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return (1);
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}
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static LibHalVolume *pusb_volume_probe(t_pusb_options *opts,
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LibHalContext *ctx)
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{
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LibHalVolume *volume = NULL;
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int maxtries = 0;
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int i;
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if (!*(opts->device.volume_uuid))
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{
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log_debug("No UUID configured for device\n");
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return (NULL);
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}
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log_debug("Searching for volume with uuid %s\n", opts->device.volume_uuid);
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maxtries = ((opts->probe_timeout * 1000000) / 250000);
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for (i = 0; i < maxtries; ++i)
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{
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char *udi = NULL;
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if (i == 1)
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log_info("Probing volume (this could take a while)...\n");
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udi = pusb_hal_find_item(ctx,
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"volume.uuid", opts->device.volume_uuid,
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NULL);
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if (!udi)
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{
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usleep(250000);
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continue;
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}
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volume = libhal_volume_from_udi(ctx, udi);
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libhal_free_string(udi);
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if (!libhal_volume_should_ignore(volume))
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return (volume);
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libhal_volume_free(volume);
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usleep(250000);
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}
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return (NULL);
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}
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LibHalVolume *pusb_volume_get(t_pusb_options *opts, LibHalContext *ctx)
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{
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LibHalVolume *volume;
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if (!(volume = pusb_volume_probe(opts, ctx)))
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return (NULL);
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log_debug("Found volume %s\n", opts->device.volume_uuid);
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if (libhal_volume_is_mounted(volume))
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{
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log_debug("Volume is already mounted.\n");
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return (volume);
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}
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if (!pusb_volume_mount(opts, &volume, ctx))
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{
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libhal_volume_free(volume);
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return (NULL);
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}
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return (volume);
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}
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void pusb_volume_destroy(LibHalVolume *volume)
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{
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const char *mntpoint;
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mntpoint = libhal_volume_get_mount_point(volume);
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if (mntpoint && strstr(mntpoint, "pam_usb"))
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{
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char command[1024];
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log_debug("Attempting to umount %s\n",
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mntpoint);
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snprintf(command, sizeof(command), "pumount %s", mntpoint);
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log_debug("Executing \"%s\"\n", command);
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if (!system(command))
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log_debug("Umount succeeded.\n");
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else
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log_error("Unable to umount %s\n", mntpoint);
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}
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libhal_volume_free(volume);
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}
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