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/***************************************************************************
*
* hal-storage-zpool.c : ZFS pool methods
*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* Licensed under the Academic Free License version 2.1
*
**************************************************************************/
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <glib/gstdio.h>
#include <sys/types.h>
#include <wait.h>
#include <unistd.h>
#include <bsm/adt.h>
#include <bsm/adt_event.h>
#include <libhal.h>
#include <libhal-storage.h>
#ifdef HAVE_POLKIT
#include <libpolkit.h>
#endif
#include "hal-storage-shared.h"
static void
usage (void)
{
fprintf (stderr, "This program should only be started by hald.\n");
exit (1);
}
void static
unknown_zpool_error (const char *detail)
{
fprintf (stderr, "org.freedesktop.Hal.Device.Volume.UnknownFailure\n");
fprintf (stderr, "%s\n", detail);
exit (1);
}
void
audit_pool(const adt_export_data_t *imported_state, au_event_t event_id,
int result, const char *auth_used, const char *pool, const char *device)
{
adt_session_data_t *ah;
adt_event_data_t *event;
if (adt_start_session(&ah, imported_state, 0) != 0) {
printf ("adt_start_session failed %d\n", errno);
return;
}
if ((event = adt_alloc_event(ah, event_id)) == NULL) {
printf ("adt_alloc_event(ADT_attach)\n", errno);
return;
}
switch (event_id) {
case ADT_pool_export:
event->adt_pool_export.auth_used = (char *)auth_used;
event->adt_pool_export.pool = (char *)pool;
event->adt_pool_export.device = (char *)device;
break;
case ADT_pool_import:
event->adt_pool_import.auth_used = (char *)auth_used;
event->adt_pool_import.pool = (char *)pool;
event->adt_pool_import.device = (char *)device;
break;
default:
goto out;
}
if (result == 0) {
if (adt_put_event(event, ADT_SUCCESS, ADT_SUCCESS) != 0) {
printf ("adt_put_event(%d, success)\n", event_id);
}
} else {
if (adt_put_event(event, ADT_FAILURE, result) != 0) {
printf ("adt_put_event(%d, failure)\n", event_id);
}
}
out:
adt_free_event(event);
(void) adt_end_session(ah);
}
void
handle_zpool (LibHalContext *hal_ctx,
#ifdef HAVE_POLKIT
LibPolKitContext *pol_ctx,
#endif
char *subcmd, const char *pool, const char *device,
const char *invoked_by_uid, const char *invoked_by_syscon_name,
DBusConnection *system_bus)
{
GError *err = NULL;
char *sout = NULL;
char *serr = NULL;
int exit_status = 0;
char *args[10];
int na;
adt_export_data_t *adt_data;
size_t adt_data_size;
au_event_t event_id;
#ifdef DEBUG
printf ("subcmd = %s\n", subcmd);
printf ("pool = %s\n", pool);
printf ("device = %s\n", device);
printf ("invoked by uid = %s\n", invoked_by_uid);
printf ("invoked by system bus connection = %s\n", invoked_by_syscon_name);
#endif
na = 0;
args[na++] = "/usr/sbin/zpool";
args[na++] = subcmd;
if ((strcmp (subcmd, "import") == 0) &&
(strncmp (device, "/dev/lofi", 9) == 0)) {
args[na++] = "-d";
args[na++] = "/dev/lofi";
}
args[na++] = (char *) pool;
args[na++] = NULL;
/* invoke eject command */
if (!g_spawn_sync ("/",
args,
NULL,
0,
NULL,
NULL,
&sout,
&serr,
&exit_status,
&err)) {
printf ("Cannot execute zpool %s\n", subcmd);
unknown_zpool_error ("Cannot spawn zpool");
}
if ((adt_data = get_audit_export_data (system_bus,
invoked_by_syscon_name, &adt_data_size)) != NULL) {
event_id = (strcmp (subcmd, "import") == 0) ?
ADT_pool_import : ADT_pool_export;
audit_pool (adt_data, event_id, WEXITSTATUS(exit_status),
"solaris.device.mount.removable", pool, device);
free (adt_data);
}
if (exit_status != 0) {
printf ("zpool error %d, stdout='%s', stderr='%s'\n", exit_status, sout, serr);
unknown_zpool_error (serr);
}
g_free (sout);
g_free (serr);
}
int
main (int argc, char *argv[])
{
char *udi;
char *device;
const char *drive_udi;
LibHalDrive *drive;
LibHalVolume *volume;
DBusError error;
LibHalContext *hal_ctx = NULL;
DBusConnection *system_bus = NULL;
#ifdef HAVE_POLKIT
LibPolKitContext *pol_ctx = NULL;
#endif
char *invoked_by_uid;
char *invoked_by_syscon_name;
device = getenv ("HAL_PROP_BLOCK_DEVICE");
if (device == NULL)
usage ();
udi = getenv ("HAL_PROP_INFO_UDI");
if (udi == NULL)
usage ();
invoked_by_uid = getenv ("HAL_METHOD_INVOKED_BY_UID");
invoked_by_syscon_name = getenv ("HAL_METHOD_INVOKED_BY_SYSTEMBUS_CONNECTION_NAME");
dbus_error_init (&error);
if ((hal_ctx = libhal_ctx_init_direct (&error)) == NULL) {
printf ("Cannot connect to hald\n");
LIBHAL_FREE_DBUS_ERROR (&error);
usage ();
}
dbus_error_init (&error);
system_bus = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
if (system_bus == NULL) {
printf ("Cannot connect to the system bus\n");
LIBHAL_FREE_DBUS_ERROR (&error);
usage ();
}
#ifdef HAVE_POLKIT
pol_ctx = libpolkit_new_context (system_bus);
if (pol_ctx == NULL) {
printf ("Cannot get libpolkit context\n");
unknown_zpool_error ("Cannot get libpolkit context");
}
#endif
/* should be a volume */
if ((volume = libhal_volume_from_udi (hal_ctx, udi)) == NULL) {
unknown_zpool_error ("Invalid volume");
}
if ((drive_udi = libhal_volume_get_storage_device_udi (volume)) == NULL ) {
unknown_zpool_error ("Cannot get drive udi");
}
if ((drive = libhal_drive_from_udi (hal_ctx, drive_udi)) == NULL) {
unknown_zpool_error ("Cannot get drive from udi");
}
if ((libhal_volume_get_fstype (volume) == NULL) ||
(strcmp (libhal_volume_get_fstype (volume), "zfs") != 0)) {
unknown_zpool_error ("Not a zpool");
}
if ((libhal_volume_get_label (volume) == NULL) ||
(strlen (libhal_volume_get_label (volume)) == 0)) {
unknown_zpool_error ("Invalid zpool name");
}
handle_zpool (hal_ctx,
#ifdef HAVE_POLKIT
pol_ctx,
#endif
ZPOOL_SUBCMD,
libhal_volume_get_label (volume),
device,
invoked_by_uid,
invoked_by_syscon_name,
system_bus);
return 0;
}
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