smbd_door_server.c revision 55bf511df53aad0fdb7eb3fa349f0308cc05234c
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock/*
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * CDDL HEADER START
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock *
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * The contents of this file are subject to the terms of the
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * Common Development and Distribution License (the "License").
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * You may not use this file except in compliance with the License.
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock *
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * or http://www.opensolaris.org/os/licensing.
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * See the License for the specific language governing permissions
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * and limitations under the License.
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock *
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * When distributing Covered Code, include this CDDL HEADER in each
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * If applicable, add the following below this CDDL HEADER, with the
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * fields enclosed by brackets "[]" replaced with your own identifying
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * information: Portions Copyright [yyyy] [name of copyright owner]
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock *
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * CDDL HEADER END
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock */
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock/*
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
ac88567a7a5bb7f01cf22cf366bc9d6203e24d7aHyon Kim * Use is subject to license terms.
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock */
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#pragma ident "%Z%%M% %I% %E% SMI"
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock/*
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * SMBd door server
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock */
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#include <door.h>
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#include <errno.h>
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#include <syslog.h>
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#include <unistd.h>
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#include <varargs.h>
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#include <stdio.h>
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#include <synch.h>
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#include <string.h>
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#include <sys/stat.h>
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#include <fcntl.h>
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#include <pthread.h>
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#include <syslog.h>
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#include <assert.h>
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock#include <alloca.h>
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
ac88567a7a5bb7f01cf22cf366bc9d6203e24d7aHyon Kim#include <smbsrv/libsmb.h>
ac88567a7a5bb7f01cf22cf366bc9d6203e24d7aHyon Kim#include <smbsrv/libsmbns.h>
ac88567a7a5bb7f01cf22cf366bc9d6203e24d7aHyon Kim#include <smbsrv/libsmbrdr.h>
ac88567a7a5bb7f01cf22cf366bc9d6203e24d7aHyon Kim
ac88567a7a5bb7f01cf22cf366bc9d6203e24d7aHyon Kim#include <smbsrv/smb_common_door.h>
ac88567a7a5bb7f01cf22cf366bc9d6203e24d7aHyon Kim
ac88567a7a5bb7f01cf22cf366bc9d6203e24d7aHyon Kimstatic int smb_door_fildes = -1;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrockstatic mutex_t smb_doorsrv_mutex;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrockvoid smb_srv_door(void *, char *, size_t, door_desc_t *, uint_t);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrockextern uint32_t smbd_join(smb_joininfo_t *);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock/*
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * smb_doorsrv_start
ac88567a7a5bb7f01cf22cf366bc9d6203e24d7aHyon Kim *
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * Start the SMBd door service.
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * Returns 0 on success. Otherwise, -1.
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock */
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrockint
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrocksmb_doorsrv_start()
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock{
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock int newfd;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) mutex_lock(&smb_doorsrv_mutex);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock if (smb_door_fildes != -1) {
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock syslog(LOG_ERR, "smb_doorsrv_start: duplicate");
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) mutex_unlock(&smb_doorsrv_mutex);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock return (0);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock }
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock if ((smb_door_fildes = door_create(smb_srv_door,
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock SMBD_DOOR_COOKIE, DOOR_UNREF)) < 0) {
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock syslog(LOG_ERR, "smb_doorsrv_start: door_create failed %s",
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock strerror(errno));
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) mutex_unlock(&smb_doorsrv_mutex);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock return (-1);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock }
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) unlink(SMBD_DOOR_NAME);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock if ((newfd = creat(SMBD_DOOR_NAME, 0644)) < 0) {
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock syslog(LOG_ERR, "smb_doorsrv_start: open failed %s",
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock strerror(errno));
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) door_revoke(smb_door_fildes);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock smb_door_fildes = -1;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) mutex_unlock(&smb_doorsrv_mutex);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock return (-1);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock }
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) close(newfd);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) fdetach(SMBD_DOOR_NAME);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock if (fattach(smb_door_fildes, SMBD_DOOR_NAME) < 0) {
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock syslog(LOG_ERR, "smb_doorsrv_start: fattach failed %s",
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock strerror(errno));
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) door_revoke(smb_door_fildes);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock smb_door_fildes = -1;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) mutex_unlock(&smb_doorsrv_mutex);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock return (-1);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock }
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) mutex_unlock(&smb_doorsrv_mutex);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock return (0);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock}
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock/*
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * smb_doorsrv_stop
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock *
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * Stop the smbd door service.
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock */
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrockvoid
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrocksmb_doorsrv_stop(void)
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock{
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) mutex_lock(&smb_doorsrv_mutex);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock if (smb_door_fildes != -1) {
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) fdetach(SMBD_DOOR_NAME);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) door_revoke(smb_door_fildes);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock smb_door_fildes = -1;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock }
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock (void) mutex_unlock(&smb_doorsrv_mutex);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock}
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock/*
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock * smb_srv_door
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock *
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock */
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock/*ARGSUSED*/
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrockvoid
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrocksmb_srv_door(void *cookie, char *ptr, size_t size, door_desc_t *dp,
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock uint_t n_desc)
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock{
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock int req_type, rc;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock char *buf;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock int buflen;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock unsigned int used;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock smb_dr_ctx_t *dec_ctx;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock smb_dr_ctx_t *enc_ctx;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock unsigned int dec_status;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock unsigned int enc_status;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock char *domain;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock char *user;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock char *passwd;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock smb_joininfo_t jdi;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock dec_ctx = smb_dr_decode_start(ptr, size);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock if (dec_ctx == 0)
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock return;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock req_type = smb_dr_get_uint32(dec_ctx);
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock buflen = SMBD_DOOR_SIZE;
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock
275c9da86e89f8abf71135cf63d9fc23671b2e60eschrock if ((buf = alloca(buflen)) == NULL) {
syslog(LOG_ERR, "SmbdDoorSrv: resource shortage");
(void) smb_dr_decode_finish(dec_ctx);
return;
}
enc_ctx = smb_dr_encode_start(buf, buflen);
if (enc_ctx == 0) {
syslog(LOG_ERR, "SmbdDoorSrv: encode start failed");
(void) smb_dr_decode_finish(dec_ctx);
return;
}
switch (req_type) {
case SMBD_DOOR_PARAM_GET: {
smb_cfg_id_t id;
char *value = NULL;
char *empty = "";
id = smb_dr_get_uint32(dec_ctx);
dec_status = smb_dr_decode_finish(dec_ctx);
if (dec_status != 0) {
goto decode_error;
}
smb_config_rdlock();
value = smb_config_getstr(id);
smb_dr_put_int32(enc_ctx, SMBD_DOOR_SRV_SUCCESS);
if (value)
smb_dr_put_string(enc_ctx, value);
else
smb_dr_put_string(enc_ctx, empty);
smb_config_unlock();
break;
}
case SMBD_DOOR_PARAM_SET: {
smb_cfg_id_t id;
char *value = NULL;
id = smb_dr_get_uint32(dec_ctx);
value = smb_dr_get_string(dec_ctx);
dec_status = smb_dr_decode_finish(dec_ctx);
if (dec_status != 0) {
smb_dr_free_string(value);
goto decode_error;
}
smb_config_wrlock();
if (smb_config_set(id, value) == 0) {
smb_dr_put_int32(enc_ctx, SMBD_DOOR_SRV_SUCCESS);
} else {
smb_dr_put_int32(enc_ctx, SMBD_DOOR_SRV_ERROR);
}
smb_config_unlock();
smb_dr_free_string(value);
break;
}
case SMBD_DOOR_NETBIOS_RECONFIG: {
smb_netbios_name_reconfig();
smb_dr_put_int32(enc_ctx, SMBD_DOOR_SRV_SUCCESS);
break;
}
case SMBD_DOOR_JOIN:
jdi.mode = smb_dr_get_uint32(dec_ctx);
domain = smb_dr_get_string(dec_ctx);
user = smb_dr_get_string(dec_ctx);
passwd = smb_dr_get_string(dec_ctx);
dec_status = smb_dr_decode_finish(dec_ctx);
if (dec_status != 0 ||
domain == 0 || user == 0 || passwd == 0) {
smb_dr_free_string(domain);
smb_dr_free_string(user);
smb_dr_free_string(passwd);
goto decode_error;
}
(void) strlcpy(jdi.domain_name, domain,
sizeof (jdi.domain_name));
(void) strlcpy(jdi.domain_username, user,
sizeof (jdi.domain_username));
(void) strlcpy(jdi.domain_passwd, passwd,
sizeof (jdi.domain_passwd));
smb_dr_free_string(domain);
smb_dr_free_string(user);
smb_dr_free_string(passwd);
rc = smbd_join(&jdi);
smb_dr_put_int32(enc_ctx, SMBD_DOOR_SRV_SUCCESS);
smb_dr_put_int32(enc_ctx, rc);
break;
case SMBD_DOOR_ADS_DOMAIN_CHANGED:
domain = smb_dr_get_string(dec_ctx);
dec_status = smb_dr_decode_finish(dec_ctx);
if (dec_status != 0) {
smb_dr_free_string(domain);
goto decode_error;
}
rc = ads_domain_change_notify_handler(domain);
smb_dr_put_int32(enc_ctx, SMBD_DOOR_SRV_SUCCESS);
smb_dr_put_int32(enc_ctx, rc);
smb_dr_free_string(domain);
break;
default:
goto decode_error;
}
if ((enc_status = smb_dr_encode_finish(enc_ctx, &used)) != 0)
goto encode_error;
(void) door_return(buf, used, NULL, 0);
return;
decode_error:
(void) smb_dr_put_int32(enc_ctx, SMBD_DOOR_SRV_ERROR);
(void) smb_dr_put_uint32(enc_ctx, dec_status);
(void) smb_dr_encode_finish(enc_ctx, &used);
(void) door_return(buf, used, NULL, 0);
return;
encode_error:
enc_ctx = smb_dr_encode_start(buf, buflen);
(void) smb_dr_put_int32(enc_ctx, SMBD_DOOR_SRV_ERROR);
(void) smb_dr_put_uint32(enc_ctx, enc_status);
(void) smb_dr_encode_finish(enc_ctx, &used);
(void) door_return(buf, used, NULL, 0);
}