/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Find existing an VC given a list of addresses.
*/
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>
#include <unistd.h>
#include <netdb.h>
#include <libintl.h>
#include <xti.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/byteorder.h>
#include <sys/socket.h>
#include <sys/fcntl.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <netsmb/smb.h>
#include <netsmb/smb_lib.h>
#include <netsmb/netbios.h>
#include <netsmb/nb_lib.h>
#include <netsmb/smb_dev.h>
#include "charsets.h"
#include "private.h"
/*
* Ask the driver if it has a VC with this IP address.
*/
static int
findvc(struct smb_ctx *ctx, struct addrinfo *ai)
{
smbioc_ossn_t *ssn = &ctx->ct_ssn;
/*
* Copy the passed address into ssn_srvaddr,
* but first sanity-check lengths. Also,
* zero it first to avoid trailing junk.
*/
if (ai->ai_addrlen > sizeof (ssn->ssn_srvaddr))
return (EINVAL);
bzero(&ssn->ssn_srvaddr, sizeof (ssn->ssn_srvaddr));
bcopy(ai->ai_addr, &ssn->ssn_srvaddr, ai->ai_addrlen);
if (ioctl(ctx->ct_dev_fd, SMBIOC_SSN_FIND, ssn) == -1)
return (errno);
return (0);
}
/*
* Find (and reuse) an existing VC.
* See also: newvc.c
*/
int
smb_ctx_findvc(struct smb_ctx *ctx)
{
struct addrinfo *ai;
int err;
/* Should already have the address list. */
if ((ctx->ct_flags & SMBCF_RESOLVED) == 0)
return (EINVAL);
for (ai = ctx->ct_addrinfo; ai; ai = ai->ai_next) {
switch (ai->ai_family) {
case AF_INET:
case AF_INET6:
case AF_NETBIOS:
err = findvc(ctx, ai);
break;
default:
DPRINT("skipped family %d", ai->ai_family);
err = EPROTONOSUPPORT;
break;
}
if (err == 0) {
/* re-use an existing VC */
ctx->ct_flags |= SMBCF_SSNACTIVE;
return (0);
}
}
return (ENOENT);
}
/*
* Forcibly disconnect the current session, even if
* there are others using it! This is used by the
* SMB server netlogon when it wants to setup a new
* logon session and does not want any re-use.
*/
int
smb_ctx_kill(struct smb_ctx *ctx)
{
if (ioctl(ctx->ct_dev_fd, SMBIOC_SSN_KILL, NULL) == -1)
return (errno);
return (0);
}