2005-04-16 22:20:36 +00:00
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/*
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* fs/cifs/connect.c
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*
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* Copyright (C) International Business Machines Corp., 2002,2004
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* Author(s): Steve French (sfrench@us.ibm.com)
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/fs.h>
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#include <linux/net.h>
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#include <linux/string.h>
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#include <linux/list.h>
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#include <linux/wait.h>
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#include <linux/ipv6.h>
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#include <linux/pagemap.h>
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#include <linux/ctype.h>
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#include <linux/utsname.h>
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#include <linux/mempool.h>
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#include <asm/uaccess.h>
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#include <asm/processor.h>
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#include "cifspdu.h"
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#include "cifsglob.h"
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#include "cifsproto.h"
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#include "cifs_unicode.h"
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#include "cifs_debug.h"
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#include "cifs_fs_sb.h"
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#include "ntlmssp.h"
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#include "nterr.h"
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#include "rfc1002pdu.h"
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#define CIFS_PORT 445
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#define RFC1001_PORT 139
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extern void SMBencrypt(unsigned char *passwd, unsigned char *c8,
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unsigned char *p24);
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extern void SMBNTencrypt(unsigned char *passwd, unsigned char *c8,
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unsigned char *p24);
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extern mempool_t *cifs_req_poolp;
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struct smb_vol {
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char *username;
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char *password;
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char *domainname;
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char *UNC;
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char *UNCip;
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char *in6_addr; /* ipv6 address as human readable form of in6_addr */
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char *iocharset; /* local code page for mapping to and from Unicode */
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char source_rfc1001_name[16]; /* netbios name of client */
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uid_t linux_uid;
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gid_t linux_gid;
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mode_t file_mode;
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mode_t dir_mode;
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unsigned rw:1;
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unsigned retry:1;
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unsigned intr:1;
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unsigned setuids:1;
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unsigned noperm:1;
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unsigned no_psx_acl:1; /* set if posix acl support should be disabled */
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unsigned no_xattr:1; /* set if xattr (EA) support should be disabled*/
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unsigned server_ino:1; /* use inode numbers from server ie UniqueId */
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unsigned direct_io:1;
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unsigned int rsize;
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unsigned int wsize;
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unsigned int sockopt;
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unsigned short int port;
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};
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static int ipv4_connect(struct sockaddr_in *psin_server,
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struct socket **csocket,
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char * netb_name);
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static int ipv6_connect(struct sockaddr_in6 *psin_server,
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struct socket **csocket);
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/*
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* cifs tcp session reconnection
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*
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* mark tcp session as reconnecting so temporarily locked
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* mark all smb sessions as reconnecting for tcp session
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* reconnect tcp session
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* wake up waiters on reconnection? - (not needed currently)
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*/
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int
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cifs_reconnect(struct TCP_Server_Info *server)
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{
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int rc = 0;
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struct list_head *tmp;
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struct cifsSesInfo *ses;
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struct cifsTconInfo *tcon;
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struct mid_q_entry * mid_entry;
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spin_lock(&GlobalMid_Lock);
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if(server->tcpStatus == CifsExiting) {
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/* the demux thread will exit normally
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next time through the loop */
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spin_unlock(&GlobalMid_Lock);
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return rc;
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} else
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server->tcpStatus = CifsNeedReconnect;
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spin_unlock(&GlobalMid_Lock);
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server->maxBuf = 0;
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cFYI(1, ("Reconnecting tcp session "));
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/* before reconnecting the tcp session, mark the smb session (uid)
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and the tid bad so they are not used until reconnected */
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read_lock(&GlobalSMBSeslock);
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list_for_each(tmp, &GlobalSMBSessionList) {
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ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList);
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if (ses->server) {
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if (ses->server == server) {
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ses->status = CifsNeedReconnect;
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ses->ipc_tid = 0;
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}
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}
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/* else tcp and smb sessions need reconnection */
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}
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list_for_each(tmp, &GlobalTreeConnectionList) {
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tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
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if((tcon) && (tcon->ses) && (tcon->ses->server == server)) {
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tcon->tidStatus = CifsNeedReconnect;
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}
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}
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read_unlock(&GlobalSMBSeslock);
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/* do not want to be sending data on a socket we are freeing */
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down(&server->tcpSem);
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if(server->ssocket) {
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cFYI(1,("State: 0x%x Flags: 0x%lx", server->ssocket->state,
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server->ssocket->flags));
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server->ssocket->ops->shutdown(server->ssocket,SEND_SHUTDOWN);
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cFYI(1,("Post shutdown state: 0x%x Flags: 0x%lx", server->ssocket->state,
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server->ssocket->flags));
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sock_release(server->ssocket);
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server->ssocket = NULL;
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}
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spin_lock(&GlobalMid_Lock);
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list_for_each(tmp, &server->pending_mid_q) {
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mid_entry = list_entry(tmp, struct
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mid_q_entry,
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qhead);
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if(mid_entry) {
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if(mid_entry->midState == MID_REQUEST_SUBMITTED) {
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/* Mark other intransit requests as needing retry so
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we do not immediately mark the session bad again
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(ie after we reconnect below) as they timeout too */
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mid_entry->midState = MID_RETRY_NEEDED;
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}
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}
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}
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spin_unlock(&GlobalMid_Lock);
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up(&server->tcpSem);
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while ((server->tcpStatus != CifsExiting) && (server->tcpStatus != CifsGood))
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{
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if(server->protocolType == IPV6) {
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rc = ipv6_connect(&server->addr.sockAddr6,&server->ssocket);
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} else {
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rc = ipv4_connect(&server->addr.sockAddr,
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&server->ssocket,
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server->workstation_RFC1001_name);
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}
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if(rc) {
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set_current_state(TASK_INTERRUPTIBLE);
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schedule_timeout(3 * HZ);
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} else {
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atomic_inc(&tcpSesReconnectCount);
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spin_lock(&GlobalMid_Lock);
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if(server->tcpStatus != CifsExiting)
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server->tcpStatus = CifsGood;
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2005-04-29 05:41:05 +00:00
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server->sequence_number = 0;
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spin_unlock(&GlobalMid_Lock);
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2005-04-16 22:20:36 +00:00
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/* atomic_set(&server->inFlight,0);*/
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wake_up(&server->response_q);
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}
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}
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return rc;
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}
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static int
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cifs_demultiplex_thread(struct TCP_Server_Info *server)
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{
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int length;
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unsigned int pdu_length, total_read;
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struct smb_hdr *smb_buffer = NULL;
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struct msghdr smb_msg;
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struct kvec iov;
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struct socket *csocket = server->ssocket;
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struct list_head *tmp;
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struct cifsSesInfo *ses;
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struct task_struct *task_to_wake = NULL;
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struct mid_q_entry *mid_entry;
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char *temp;
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daemonize("cifsd");
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allow_signal(SIGKILL);
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current->flags |= PF_MEMALLOC;
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server->tsk = current; /* save process info to wake at shutdown */
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cFYI(1, ("Demultiplex PID: %d", current->pid));
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write_lock(&GlobalSMBSeslock);
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atomic_inc(&tcpSesAllocCount);
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length = tcpSesAllocCount.counter;
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write_unlock(&GlobalSMBSeslock);
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if(length > 1) {
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mempool_resize(cifs_req_poolp,
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length + cifs_min_rcv,
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GFP_KERNEL);
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}
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while (server->tcpStatus != CifsExiting) {
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if (smb_buffer == NULL)
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smb_buffer = cifs_buf_get();
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else
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memset(smb_buffer, 0, sizeof (struct smb_hdr));
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if (smb_buffer == NULL) {
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cERROR(1,("Can not get memory for SMB response"));
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set_current_state(TASK_INTERRUPTIBLE);
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schedule_timeout(HZ * 3); /* give system time to free memory */
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continue;
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}
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iov.iov_base = smb_buffer;
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iov.iov_len = 4;
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smb_msg.msg_control = NULL;
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smb_msg.msg_controllen = 0;
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length =
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kernel_recvmsg(csocket, &smb_msg,
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&iov, 1, 4, 0 /* BB see socket.h flags */);
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if(server->tcpStatus == CifsExiting) {
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break;
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} else if (server->tcpStatus == CifsNeedReconnect) {
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cFYI(1,("Reconnecting after server stopped responding"));
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cifs_reconnect(server);
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cFYI(1,("call to reconnect done"));
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csocket = server->ssocket;
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continue;
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} else if ((length == -ERESTARTSYS) || (length == -EAGAIN)) {
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set_current_state(TASK_INTERRUPTIBLE);
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schedule_timeout(1); /* minimum sleep to prevent looping
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allowing socket to clear and app threads to set
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tcpStatus CifsNeedReconnect if server hung */
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continue;
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} else if (length <= 0) {
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if(server->tcpStatus == CifsNew) {
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cFYI(1,("tcp session abended prematurely (after SMBnegprot)"));
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/* some servers kill tcp session rather than returning
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smb negprot error in which case reconnecting here is
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not going to help - return error to mount */
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break;
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}
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if(length == -EINTR) {
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cFYI(1,("cifsd thread killed"));
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break;
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}
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cFYI(1,("Reconnecting after unexpected peek error %d",length));
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cifs_reconnect(server);
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csocket = server->ssocket;
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wake_up(&server->response_q);
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continue;
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} else if (length > 3) {
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pdu_length = ntohl(smb_buffer->smb_buf_length);
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/* Only read pdu_length after below checks for too short (due
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to e.g. int overflow) and too long ie beyond end of buf */
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cFYI(1,("rfc1002 length(big endian)0x%x)", pdu_length+4));
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temp = (char *) smb_buffer;
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if (temp[0] == (char) RFC1002_SESSION_KEEP_ALIVE) {
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cFYI(0,("Received 4 byte keep alive packet"));
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} else if (temp[0] == (char) RFC1002_POSITIVE_SESSION_RESPONSE) {
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cFYI(1,("Good RFC 1002 session rsp"));
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} else if (temp[0] == (char)RFC1002_NEGATIVE_SESSION_RESPONSE) {
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/* we get this from Windows 98 instead of error on SMB negprot response */
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cFYI(1,("Negative RFC 1002 Session Response Error 0x%x)",temp[4]));
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if(server->tcpStatus == CifsNew) {
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/* if nack on negprot (rather than
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ret of smb negprot error) reconnecting
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not going to help, ret error to mount */
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break;
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} else {
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/* give server a second to
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clean up before reconnect attempt */
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set_current_state(TASK_INTERRUPTIBLE);
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schedule_timeout(HZ);
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/* always try 445 first on reconnect
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since we get NACK on some if we ever
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connected to port 139 (the NACK is
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since we do not begin with RFC1001
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session initialize frame) */
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server->addr.sockAddr.sin_port = htons(CIFS_PORT);
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cifs_reconnect(server);
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csocket = server->ssocket;
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wake_up(&server->response_q);
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continue;
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}
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} else if (temp[0] != (char) 0) {
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cERROR(1,("Unknown RFC 1002 frame"));
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cifs_dump_mem(" Received Data: ", temp, length);
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|
|
cifs_reconnect(server);
|
|
|
|
|
csocket = server->ssocket;
|
|
|
|
|
continue;
|
|
|
|
|
} else {
|
|
|
|
|
if((pdu_length > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4)
|
|
|
|
|
|| (pdu_length < sizeof (struct smb_hdr) - 1 - 4)) {
|
|
|
|
|
cERROR(1,
|
|
|
|
|
("Invalid size SMB length %d and pdu_length %d",
|
|
|
|
|
length, pdu_length+4));
|
|
|
|
|
cifs_reconnect(server);
|
|
|
|
|
csocket = server->ssocket;
|
|
|
|
|
wake_up(&server->response_q);
|
|
|
|
|
continue;
|
|
|
|
|
} else { /* length ok */
|
|
|
|
|
length = 0;
|
|
|
|
|
iov.iov_base = 4 + (char *)smb_buffer;
|
|
|
|
|
iov.iov_len = pdu_length;
|
|
|
|
|
for (total_read = 0;
|
|
|
|
|
total_read < pdu_length;
|
|
|
|
|
total_read += length) {
|
|
|
|
|
length = kernel_recvmsg(csocket, &smb_msg,
|
|
|
|
|
&iov, 1,
|
|
|
|
|
pdu_length - total_read, 0);
|
|
|
|
|
if (length == 0) {
|
|
|
|
|
cERROR(1,
|
|
|
|
|
("Zero length receive when expecting %d ",
|
|
|
|
|
pdu_length - total_read));
|
|
|
|
|
cifs_reconnect(server);
|
|
|
|
|
csocket = server->ssocket;
|
|
|
|
|
wake_up(&server->response_q);
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
length += 4; /* account for rfc1002 hdr */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
dump_smb(smb_buffer, length);
|
|
|
|
|
if (checkSMB
|
|
|
|
|
(smb_buffer, smb_buffer->Mid, total_read+4)) {
|
|
|
|
|
cERROR(1, ("Bad SMB Received "));
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
task_to_wake = NULL;
|
|
|
|
|
spin_lock(&GlobalMid_Lock);
|
|
|
|
|
list_for_each(tmp, &server->pending_mid_q) {
|
|
|
|
|
mid_entry = list_entry(tmp, struct
|
|
|
|
|
mid_q_entry,
|
|
|
|
|
qhead);
|
|
|
|
|
|
|
|
|
|
if ((mid_entry->mid == smb_buffer->Mid) && (mid_entry->midState == MID_REQUEST_SUBMITTED)) {
|
|
|
|
|
cFYI(1,
|
|
|
|
|
(" Mid 0x%x matched - waking up ",mid_entry->mid));
|
|
|
|
|
task_to_wake = mid_entry->tsk;
|
|
|
|
|
mid_entry->resp_buf =
|
|
|
|
|
smb_buffer;
|
|
|
|
|
mid_entry->midState =
|
|
|
|
|
MID_RESPONSE_RECEIVED;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
spin_unlock(&GlobalMid_Lock);
|
|
|
|
|
if (task_to_wake) {
|
|
|
|
|
smb_buffer = NULL; /* will be freed by users thread after he is done */
|
|
|
|
|
wake_up_process(task_to_wake);
|
|
|
|
|
} else if (is_valid_oplock_break(smb_buffer) == FALSE) {
|
|
|
|
|
cERROR(1, ("No task to wake, unknown frame rcvd!"));
|
|
|
|
|
cifs_dump_mem("Received Data is: ",temp,sizeof(struct smb_hdr));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
cFYI(1,
|
|
|
|
|
("Frame less than four bytes received %d bytes long.",
|
|
|
|
|
length));
|
|
|
|
|
cifs_reconnect(server);
|
|
|
|
|
csocket = server->ssocket;
|
|
|
|
|
wake_up(&server->response_q);
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
spin_lock(&GlobalMid_Lock);
|
|
|
|
|
server->tcpStatus = CifsExiting;
|
|
|
|
|
server->tsk = NULL;
|
|
|
|
|
atomic_set(&server->inFlight, 0);
|
|
|
|
|
spin_unlock(&GlobalMid_Lock);
|
|
|
|
|
/* Although there should not be any requests blocked on
|
|
|
|
|
this queue it can not hurt to be paranoid and try to wake up requests
|
|
|
|
|
that may haven been blocked when more than 50 at time were on the wire
|
|
|
|
|
to the same server - they now will see the session is in exit state
|
|
|
|
|
and get out of SendReceive. */
|
|
|
|
|
wake_up_all(&server->request_q);
|
|
|
|
|
/* give those requests time to exit */
|
|
|
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
|
|
|
schedule_timeout(HZ/8);
|
|
|
|
|
|
|
|
|
|
if(server->ssocket) {
|
|
|
|
|
sock_release(csocket);
|
|
|
|
|
server->ssocket = NULL;
|
|
|
|
|
}
|
|
|
|
|
if (smb_buffer) /* buffer usually freed in free_mid - need to free it on error or exit */
|
|
|
|
|
cifs_buf_release(smb_buffer);
|
|
|
|
|
|
|
|
|
|
read_lock(&GlobalSMBSeslock);
|
|
|
|
|
if (list_empty(&server->pending_mid_q)) {
|
|
|
|
|
/* loop through server session structures attached to this and mark them dead */
|
|
|
|
|
list_for_each(tmp, &GlobalSMBSessionList) {
|
|
|
|
|
ses =
|
|
|
|
|
list_entry(tmp, struct cifsSesInfo,
|
|
|
|
|
cifsSessionList);
|
|
|
|
|
if (ses->server == server) {
|
|
|
|
|
ses->status = CifsExiting;
|
|
|
|
|
ses->server = NULL;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
read_unlock(&GlobalSMBSeslock);
|
|
|
|
|
} else {
|
|
|
|
|
spin_lock(&GlobalMid_Lock);
|
|
|
|
|
list_for_each(tmp, &server->pending_mid_q) {
|
|
|
|
|
mid_entry = list_entry(tmp, struct mid_q_entry, qhead);
|
|
|
|
|
if (mid_entry->midState == MID_REQUEST_SUBMITTED) {
|
|
|
|
|
cFYI(1,
|
|
|
|
|
(" Clearing Mid 0x%x - waking up ",mid_entry->mid));
|
|
|
|
|
task_to_wake = mid_entry->tsk;
|
|
|
|
|
if(task_to_wake) {
|
|
|
|
|
wake_up_process(task_to_wake);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
spin_unlock(&GlobalMid_Lock);
|
|
|
|
|
read_unlock(&GlobalSMBSeslock);
|
|
|
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
|
|
|
/* 1/8th of sec is more than enough time for them to exit */
|
|
|
|
|
schedule_timeout(HZ/8);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (list_empty(&server->pending_mid_q)) {
|
|
|
|
|
/* mpx threads have not exited yet give them
|
|
|
|
|
at least the smb send timeout time for long ops */
|
|
|
|
|
cFYI(1, ("Wait for exit from demultiplex thread"));
|
|
|
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
|
|
|
schedule_timeout(46 * HZ);
|
|
|
|
|
/* if threads still have not exited they are probably never
|
|
|
|
|
coming home not much else we can do but free the memory */
|
|
|
|
|
}
|
|
|
|
|
kfree(server);
|
|
|
|
|
|
|
|
|
|
write_lock(&GlobalSMBSeslock);
|
|
|
|
|
atomic_dec(&tcpSesAllocCount);
|
|
|
|
|
length = tcpSesAllocCount.counter;
|
|
|
|
|
write_unlock(&GlobalSMBSeslock);
|
|
|
|
|
if(length > 0) {
|
|
|
|
|
mempool_resize(cifs_req_poolp,
|
|
|
|
|
length + cifs_min_rcv,
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
|
|
|
schedule_timeout(HZ/4);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void *
|
|
|
|
|
cifs_kcalloc(size_t size, unsigned int __nocast type)
|
|
|
|
|
{
|
|
|
|
|
void *addr;
|
|
|
|
|
addr = kmalloc(size, type);
|
|
|
|
|
if (addr)
|
|
|
|
|
memset(addr, 0, size);
|
|
|
|
|
return addr;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
|
|
|
|
|
{
|
|
|
|
|
char *value;
|
|
|
|
|
char *data;
|
|
|
|
|
unsigned int temp_len, i, j;
|
|
|
|
|
char separator[2];
|
|
|
|
|
|
|
|
|
|
separator[0] = ',';
|
|
|
|
|
separator[1] = 0;
|
|
|
|
|
|
|
|
|
|
memset(vol->source_rfc1001_name,0x20,15);
|
|
|
|
|
for(i=0;i < strnlen(system_utsname.nodename,15);i++) {
|
|
|
|
|
/* does not have to be a perfect mapping since the field is
|
|
|
|
|
informational, only used for servers that do not support
|
|
|
|
|
port 445 and it can be overridden at mount time */
|
|
|
|
|
vol->source_rfc1001_name[i] = toupper(system_utsname.nodename[i]);
|
|
|
|
|
}
|
|
|
|
|
vol->source_rfc1001_name[15] = 0;
|
|
|
|
|
|
|
|
|
|
vol->linux_uid = current->uid; /* current->euid instead? */
|
|
|
|
|
vol->linux_gid = current->gid;
|
|
|
|
|
vol->dir_mode = S_IRWXUGO;
|
|
|
|
|
/* 2767 perms indicate mandatory locking support */
|
|
|
|
|
vol->file_mode = S_IALLUGO & ~(S_ISUID | S_IXGRP);
|
|
|
|
|
|
|
|
|
|
/* vol->retry default is 0 (i.e. "soft" limited retry not hard retry) */
|
|
|
|
|
vol->rw = TRUE;
|
|
|
|
|
|
|
|
|
|
if (!options)
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
if(strncmp(options,"sep=",4) == 0) {
|
|
|
|
|
if(options[4] != 0) {
|
|
|
|
|
separator[0] = options[4];
|
|
|
|
|
options += 5;
|
|
|
|
|
} else {
|
|
|
|
|
cFYI(1,("Null separator not allowed"));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
while ((data = strsep(&options, separator)) != NULL) {
|
|
|
|
|
if (!*data)
|
|
|
|
|
continue;
|
|
|
|
|
if ((value = strchr(data, '=')) != NULL)
|
|
|
|
|
*value++ = '\0';
|
|
|
|
|
|
|
|
|
|
if (strnicmp(data, "user_xattr",10) == 0) {/*parse before user*/
|
|
|
|
|
vol->no_xattr = 0;
|
|
|
|
|
} else if (strnicmp(data, "nouser_xattr",12) == 0) {
|
|
|
|
|
vol->no_xattr = 1;
|
|
|
|
|
} else if (strnicmp(data, "user", 4) == 0) {
|
|
|
|
|
if (!value || !*value) {
|
|
|
|
|
printk(KERN_WARNING
|
|
|
|
|
"CIFS: invalid or missing username\n");
|
|
|
|
|
return 1; /* needs_arg; */
|
|
|
|
|
}
|
|
|
|
|
if (strnlen(value, 200) < 200) {
|
|
|
|
|
vol->username = value;
|
|
|
|
|
} else {
|
|
|
|
|
printk(KERN_WARNING "CIFS: username too long\n");
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "pass", 4) == 0) {
|
|
|
|
|
if (!value) {
|
|
|
|
|
vol->password = NULL;
|
|
|
|
|
continue;
|
|
|
|
|
} else if(value[0] == 0) {
|
|
|
|
|
/* check if string begins with double comma
|
|
|
|
|
since that would mean the password really
|
|
|
|
|
does start with a comma, and would not
|
|
|
|
|
indicate an empty string */
|
|
|
|
|
if(value[1] != separator[0]) {
|
|
|
|
|
vol->password = NULL;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
temp_len = strlen(value);
|
|
|
|
|
/* removed password length check, NTLM passwords
|
|
|
|
|
can be arbitrarily long */
|
|
|
|
|
|
|
|
|
|
/* if comma in password, the string will be
|
|
|
|
|
prematurely null terminated. Commas in password are
|
|
|
|
|
specified across the cifs mount interface by a double
|
|
|
|
|
comma ie ,, and a comma used as in other cases ie ','
|
|
|
|
|
as a parameter delimiter/separator is single and due
|
|
|
|
|
to the strsep above is temporarily zeroed. */
|
|
|
|
|
|
|
|
|
|
/* NB: password legally can have multiple commas and
|
|
|
|
|
the only illegal character in a password is null */
|
|
|
|
|
|
|
|
|
|
if ((value[temp_len] == 0) && (value[temp_len+1] == separator[0])) {
|
|
|
|
|
/* reinsert comma */
|
|
|
|
|
value[temp_len] = separator[0];
|
|
|
|
|
temp_len+=2; /* move after the second comma */
|
|
|
|
|
while(value[temp_len] != 0) {
|
|
|
|
|
if (value[temp_len] == separator[0]) {
|
|
|
|
|
if (value[temp_len+1] == separator[0]) {
|
|
|
|
|
temp_len++; /* skip second comma */
|
|
|
|
|
} else {
|
|
|
|
|
/* single comma indicating start
|
|
|
|
|
of next parm */
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
temp_len++;
|
|
|
|
|
}
|
|
|
|
|
if(value[temp_len] == 0) {
|
|
|
|
|
options = NULL;
|
|
|
|
|
} else {
|
|
|
|
|
value[temp_len] = 0;
|
|
|
|
|
/* point option to start of next parm */
|
|
|
|
|
options = value + temp_len + 1;
|
|
|
|
|
}
|
|
|
|
|
/* go from value to value + temp_len condensing
|
|
|
|
|
double commas to singles. Note that this ends up
|
|
|
|
|
allocating a few bytes too many, which is ok */
|
|
|
|
|
vol->password = cifs_kcalloc(temp_len, GFP_KERNEL);
|
|
|
|
|
for(i=0,j=0;i<temp_len;i++,j++) {
|
|
|
|
|
vol->password[j] = value[i];
|
|
|
|
|
if(value[i] == separator[0] && value[i+1] == separator[0]) {
|
|
|
|
|
/* skip second comma */
|
|
|
|
|
i++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
vol->password[j] = 0;
|
|
|
|
|
} else {
|
|
|
|
|
vol->password = cifs_kcalloc(temp_len + 1, GFP_KERNEL);
|
|
|
|
|
strcpy(vol->password, value);
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "ip", 2) == 0) {
|
|
|
|
|
if (!value || !*value) {
|
|
|
|
|
vol->UNCip = NULL;
|
|
|
|
|
} else if (strnlen(value, 35) < 35) {
|
|
|
|
|
vol->UNCip = value;
|
|
|
|
|
} else {
|
|
|
|
|
printk(KERN_WARNING "CIFS: ip address too long\n");
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
} else if ((strnicmp(data, "unc", 3) == 0)
|
|
|
|
|
|| (strnicmp(data, "target", 6) == 0)
|
|
|
|
|
|| (strnicmp(data, "path", 4) == 0)) {
|
|
|
|
|
if (!value || !*value) {
|
|
|
|
|
printk(KERN_WARNING
|
|
|
|
|
"CIFS: invalid path to network resource\n");
|
|
|
|
|
return 1; /* needs_arg; */
|
|
|
|
|
}
|
|
|
|
|
if ((temp_len = strnlen(value, 300)) < 300) {
|
|
|
|
|
vol->UNC = kmalloc(temp_len+1,GFP_KERNEL);
|
|
|
|
|
if(vol->UNC == NULL)
|
|
|
|
|
return 1;
|
|
|
|
|
strcpy(vol->UNC,value);
|
|
|
|
|
if (strncmp(vol->UNC, "//", 2) == 0) {
|
|
|
|
|
vol->UNC[0] = '\\';
|
|
|
|
|
vol->UNC[1] = '\\';
|
|
|
|
|
} else if (strncmp(vol->UNC, "\\\\", 2) != 0) {
|
|
|
|
|
printk(KERN_WARNING
|
|
|
|
|
"CIFS: UNC Path does not begin with // or \\\\ \n");
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
printk(KERN_WARNING "CIFS: UNC name too long\n");
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
} else if ((strnicmp(data, "domain", 3) == 0)
|
|
|
|
|
|| (strnicmp(data, "workgroup", 5) == 0)) {
|
|
|
|
|
if (!value || !*value) {
|
|
|
|
|
printk(KERN_WARNING "CIFS: invalid domain name\n");
|
|
|
|
|
return 1; /* needs_arg; */
|
|
|
|
|
}
|
|
|
|
|
/* BB are there cases in which a comma can be valid in
|
|
|
|
|
a domain name and need special handling? */
|
|
|
|
|
if (strnlen(value, 65) < 65) {
|
|
|
|
|
vol->domainname = value;
|
|
|
|
|
cFYI(1, ("Domain name set"));
|
|
|
|
|
} else {
|
|
|
|
|
printk(KERN_WARNING "CIFS: domain name too long\n");
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "iocharset", 9) == 0) {
|
|
|
|
|
if (!value || !*value) {
|
|
|
|
|
printk(KERN_WARNING "CIFS: invalid iocharset specified\n");
|
|
|
|
|
return 1; /* needs_arg; */
|
|
|
|
|
}
|
|
|
|
|
if (strnlen(value, 65) < 65) {
|
|
|
|
|
if(strnicmp(value,"default",7))
|
|
|
|
|
vol->iocharset = value;
|
|
|
|
|
/* if iocharset not set load_nls_default used by caller */
|
|
|
|
|
cFYI(1, ("iocharset set to %s",value));
|
|
|
|
|
} else {
|
|
|
|
|
printk(KERN_WARNING "CIFS: iocharset name too long.\n");
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "uid", 3) == 0) {
|
|
|
|
|
if (value && *value) {
|
|
|
|
|
vol->linux_uid =
|
|
|
|
|
simple_strtoul(value, &value, 0);
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "gid", 3) == 0) {
|
|
|
|
|
if (value && *value) {
|
|
|
|
|
vol->linux_gid =
|
|
|
|
|
simple_strtoul(value, &value, 0);
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "file_mode", 4) == 0) {
|
|
|
|
|
if (value && *value) {
|
|
|
|
|
vol->file_mode =
|
|
|
|
|
simple_strtoul(value, &value, 0);
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "dir_mode", 4) == 0) {
|
|
|
|
|
if (value && *value) {
|
|
|
|
|
vol->dir_mode =
|
|
|
|
|
simple_strtoul(value, &value, 0);
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "dirmode", 4) == 0) {
|
|
|
|
|
if (value && *value) {
|
|
|
|
|
vol->dir_mode =
|
|
|
|
|
simple_strtoul(value, &value, 0);
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "port", 4) == 0) {
|
|
|
|
|
if (value && *value) {
|
|
|
|
|
vol->port =
|
|
|
|
|
simple_strtoul(value, &value, 0);
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "rsize", 5) == 0) {
|
|
|
|
|
if (value && *value) {
|
|
|
|
|
vol->rsize =
|
|
|
|
|
simple_strtoul(value, &value, 0);
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "wsize", 5) == 0) {
|
|
|
|
|
if (value && *value) {
|
|
|
|
|
vol->wsize =
|
|
|
|
|
simple_strtoul(value, &value, 0);
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "sockopt", 5) == 0) {
|
|
|
|
|
if (value && *value) {
|
|
|
|
|
vol->sockopt =
|
|
|
|
|
simple_strtoul(value, &value, 0);
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "netbiosname", 4) == 0) {
|
|
|
|
|
if (!value || !*value || (*value == ' ')) {
|
|
|
|
|
cFYI(1,("invalid (empty) netbiosname specified"));
|
|
|
|
|
} else {
|
|
|
|
|
memset(vol->source_rfc1001_name,0x20,15);
|
|
|
|
|
for(i=0;i<15;i++) {
|
|
|
|
|
/* BB are there cases in which a comma can be
|
|
|
|
|
valid in this workstation netbios name (and need
|
|
|
|
|
special handling)? */
|
|
|
|
|
|
|
|
|
|
/* We do not uppercase netbiosname for user */
|
|
|
|
|
if (value[i]==0)
|
|
|
|
|
break;
|
|
|
|
|
else
|
|
|
|
|
vol->source_rfc1001_name[i] = value[i];
|
|
|
|
|
}
|
|
|
|
|
/* The string has 16th byte zero still from
|
|
|
|
|
set at top of the function */
|
|
|
|
|
if((i==15) && (value[i] != 0))
|
|
|
|
|
printk(KERN_WARNING "CIFS: netbiosname longer than 15 and was truncated.\n");
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "credentials", 4) == 0) {
|
|
|
|
|
/* ignore */
|
|
|
|
|
} else if (strnicmp(data, "version", 3) == 0) {
|
|
|
|
|
/* ignore */
|
|
|
|
|
} else if (strnicmp(data, "guest",5) == 0) {
|
|
|
|
|
/* ignore */
|
|
|
|
|
} else if (strnicmp(data, "rw", 2) == 0) {
|
|
|
|
|
vol->rw = TRUE;
|
|
|
|
|
} else if ((strnicmp(data, "suid", 4) == 0) ||
|
|
|
|
|
(strnicmp(data, "nosuid", 6) == 0) ||
|
|
|
|
|
(strnicmp(data, "exec", 4) == 0) ||
|
|
|
|
|
(strnicmp(data, "noexec", 6) == 0) ||
|
|
|
|
|
(strnicmp(data, "nodev", 5) == 0) ||
|
|
|
|
|
(strnicmp(data, "noauto", 6) == 0) ||
|
|
|
|
|
(strnicmp(data, "dev", 3) == 0)) {
|
|
|
|
|
/* The mount tool or mount.cifs helper (if present)
|
|
|
|
|
uses these opts to set flags, and the flags are read
|
|
|
|
|
by the kernel vfs layer before we get here (ie
|
|
|
|
|
before read super) so there is no point trying to
|
|
|
|
|
parse these options again and set anything and it
|
|
|
|
|
is ok to just ignore them */
|
|
|
|
|
continue;
|
|
|
|
|
} else if (strnicmp(data, "ro", 2) == 0) {
|
|
|
|
|
vol->rw = FALSE;
|
|
|
|
|
} else if (strnicmp(data, "hard", 4) == 0) {
|
|
|
|
|
vol->retry = 1;
|
|
|
|
|
} else if (strnicmp(data, "soft", 4) == 0) {
|
|
|
|
|
vol->retry = 0;
|
|
|
|
|
} else if (strnicmp(data, "perm", 4) == 0) {
|
|
|
|
|
vol->noperm = 0;
|
|
|
|
|
} else if (strnicmp(data, "noperm", 6) == 0) {
|
|
|
|
|
vol->noperm = 1;
|
|
|
|
|
} else if (strnicmp(data, "setuids", 7) == 0) {
|
|
|
|
|
vol->setuids = 1;
|
|
|
|
|
} else if (strnicmp(data, "nosetuids", 9) == 0) {
|
|
|
|
|
vol->setuids = 0;
|
|
|
|
|
} else if (strnicmp(data, "nohard", 6) == 0) {
|
|
|
|
|
vol->retry = 0;
|
|
|
|
|
} else if (strnicmp(data, "nosoft", 6) == 0) {
|
|
|
|
|
vol->retry = 1;
|
|
|
|
|
} else if (strnicmp(data, "nointr", 6) == 0) {
|
|
|
|
|
vol->intr = 0;
|
|
|
|
|
} else if (strnicmp(data, "intr", 4) == 0) {
|
|
|
|
|
vol->intr = 1;
|
|
|
|
|
} else if (strnicmp(data, "serverino",7) == 0) {
|
|
|
|
|
vol->server_ino = 1;
|
|
|
|
|
} else if (strnicmp(data, "noserverino",9) == 0) {
|
|
|
|
|
vol->server_ino = 0;
|
|
|
|
|
} else if (strnicmp(data, "acl",3) == 0) {
|
|
|
|
|
vol->no_psx_acl = 0;
|
|
|
|
|
} else if (strnicmp(data, "noacl",5) == 0) {
|
|
|
|
|
vol->no_psx_acl = 1;
|
|
|
|
|
} else if (strnicmp(data, "direct",6) == 0) {
|
|
|
|
|
vol->direct_io = 1;
|
|
|
|
|
} else if (strnicmp(data, "forcedirectio",13) == 0) {
|
|
|
|
|
vol->direct_io = 1;
|
|
|
|
|
} else if (strnicmp(data, "in6_addr",8) == 0) {
|
|
|
|
|
if (!value || !*value) {
|
|
|
|
|
vol->in6_addr = NULL;
|
|
|
|
|
} else if (strnlen(value, 49) == 48) {
|
|
|
|
|
vol->in6_addr = value;
|
|
|
|
|
} else {
|
|
|
|
|
printk(KERN_WARNING "CIFS: ip v6 address not 48 characters long\n");
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
} else if (strnicmp(data, "noac", 4) == 0) {
|
|
|
|
|
printk(KERN_WARNING "CIFS: Mount option noac not supported. Instead set /proc/fs/cifs/LookupCacheEnabled to 0\n");
|
|
|
|
|
} else
|
|
|
|
|
printk(KERN_WARNING "CIFS: Unknown mount option %s\n",data);
|
|
|
|
|
}
|
|
|
|
|
if (vol->UNC == NULL) {
|
|
|
|
|
if(devname == NULL) {
|
|
|
|
|
printk(KERN_WARNING "CIFS: Missing UNC name for mount target\n");
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
if ((temp_len = strnlen(devname, 300)) < 300) {
|
|
|
|
|
vol->UNC = kmalloc(temp_len+1,GFP_KERNEL);
|
|
|
|
|
if(vol->UNC == NULL)
|
|
|
|
|
return 1;
|
|
|
|
|
strcpy(vol->UNC,devname);
|
|
|
|
|
if (strncmp(vol->UNC, "//", 2) == 0) {
|
|
|
|
|
vol->UNC[0] = '\\';
|
|
|
|
|
vol->UNC[1] = '\\';
|
|
|
|
|
} else if (strncmp(vol->UNC, "\\\\", 2) != 0) {
|
|
|
|
|
printk(KERN_WARNING "CIFS: UNC Path does not begin with // or \\\\ \n");
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
printk(KERN_WARNING "CIFS: UNC name too long\n");
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if(vol->UNCip == NULL)
|
|
|
|
|
vol->UNCip = &vol->UNC[2];
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static struct cifsSesInfo *
|
|
|
|
|
cifs_find_tcp_session(struct in_addr * target_ip_addr,
|
|
|
|
|
struct in6_addr *target_ip6_addr,
|
|
|
|
|
char *userName, struct TCP_Server_Info **psrvTcp)
|
|
|
|
|
{
|
|
|
|
|
struct list_head *tmp;
|
|
|
|
|
struct cifsSesInfo *ses;
|
|
|
|
|
*psrvTcp = NULL;
|
|
|
|
|
read_lock(&GlobalSMBSeslock);
|
|
|
|
|
|
|
|
|
|
list_for_each(tmp, &GlobalSMBSessionList) {
|
|
|
|
|
ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList);
|
|
|
|
|
if (ses->server) {
|
|
|
|
|
if((target_ip_addr &&
|
|
|
|
|
(ses->server->addr.sockAddr.sin_addr.s_addr
|
|
|
|
|
== target_ip_addr->s_addr)) || (target_ip6_addr
|
|
|
|
|
&& memcmp(&ses->server->addr.sockAddr6.sin6_addr,
|
|
|
|
|
target_ip6_addr,sizeof(*target_ip6_addr)))){
|
|
|
|
|
/* BB lock server and tcp session and increment use count here?? */
|
|
|
|
|
*psrvTcp = ses->server; /* found a match on the TCP session */
|
|
|
|
|
/* BB check if reconnection needed */
|
|
|
|
|
if (strncmp
|
|
|
|
|
(ses->userName, userName,
|
|
|
|
|
MAX_USERNAME_SIZE) == 0){
|
|
|
|
|
read_unlock(&GlobalSMBSeslock);
|
|
|
|
|
return ses; /* found exact match on both tcp and SMB sessions */
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
/* else tcp and smb sessions need reconnection */
|
|
|
|
|
}
|
|
|
|
|
read_unlock(&GlobalSMBSeslock);
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static struct cifsTconInfo *
|
|
|
|
|
find_unc(__be32 new_target_ip_addr, char *uncName, char *userName)
|
|
|
|
|
{
|
|
|
|
|
struct list_head *tmp;
|
|
|
|
|
struct cifsTconInfo *tcon;
|
|
|
|
|
|
|
|
|
|
read_lock(&GlobalSMBSeslock);
|
|
|
|
|
list_for_each(tmp, &GlobalTreeConnectionList) {
|
|
|
|
|
cFYI(1, ("Next tcon - "));
|
|
|
|
|
tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
|
|
|
|
|
if (tcon->ses) {
|
|
|
|
|
if (tcon->ses->server) {
|
|
|
|
|
cFYI(1,
|
|
|
|
|
(" old ip addr: %x == new ip %x ?",
|
|
|
|
|
tcon->ses->server->addr.sockAddr.sin_addr.
|
|
|
|
|
s_addr, new_target_ip_addr));
|
|
|
|
|
if (tcon->ses->server->addr.sockAddr.sin_addr.
|
|
|
|
|
s_addr == new_target_ip_addr) {
|
|
|
|
|
/* BB lock tcon and server and tcp session and increment use count here? */
|
|
|
|
|
/* found a match on the TCP session */
|
|
|
|
|
/* BB check if reconnection needed */
|
|
|
|
|
cFYI(1,("Matched ip, old UNC: %s == new: %s ?",
|
|
|
|
|
tcon->treeName, uncName));
|
|
|
|
|
if (strncmp
|
|
|
|
|
(tcon->treeName, uncName,
|
|
|
|
|
MAX_TREE_SIZE) == 0) {
|
|
|
|
|
cFYI(1,
|
|
|
|
|
("Matched UNC, old user: %s == new: %s ?",
|
|
|
|
|
tcon->treeName, uncName));
|
|
|
|
|
if (strncmp
|
|
|
|
|
(tcon->ses->userName,
|
|
|
|
|
userName,
|
|
|
|
|
MAX_USERNAME_SIZE) == 0) {
|
|
|
|
|
read_unlock(&GlobalSMBSeslock);
|
|
|
|
|
return tcon;/* also matched user (smb session)*/
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
read_unlock(&GlobalSMBSeslock);
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
|
|
|
|
|
const char *old_path, const struct nls_table *nls_codepage)
|
|
|
|
|
{
|
|
|
|
|
unsigned char *referrals = NULL;
|
|
|
|
|
unsigned int num_referrals;
|
|
|
|
|
int rc = 0;
|
|
|
|
|
|
|
|
|
|
rc = get_dfs_path(xid, pSesInfo,old_path, nls_codepage,
|
|
|
|
|
&num_referrals, &referrals);
|
|
|
|
|
|
|
|
|
|
/* BB Add in code to: if valid refrl, if not ip address contact
|
|
|
|
|
the helper that resolves tcp names, mount to it, try to
|
|
|
|
|
tcon to it unmount it if fail */
|
|
|
|
|
|
|
|
|
|
if(referrals)
|
|
|
|
|
kfree(referrals);
|
|
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
get_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
|
|
|
|
|
const char *old_path, const struct nls_table *nls_codepage,
|
|
|
|
|
unsigned int *pnum_referrals, unsigned char ** preferrals)
|
|
|
|
|
{
|
|
|
|
|
char *temp_unc;
|
|
|
|
|
int rc = 0;
|
|
|
|
|
|
|
|
|
|
*pnum_referrals = 0;
|
|
|
|
|
|
|
|
|
|
if (pSesInfo->ipc_tid == 0) {
|
|
|
|
|
temp_unc = kmalloc(2 /* for slashes */ +
|
|
|
|
|
strnlen(pSesInfo->serverName,SERVER_NAME_LEN_WITH_NULL * 2)
|
|
|
|
|
+ 1 + 4 /* slash IPC$ */ + 2,
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
if (temp_unc == NULL)
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
temp_unc[0] = '\\';
|
|
|
|
|
temp_unc[1] = '\\';
|
|
|
|
|
strcpy(temp_unc + 2, pSesInfo->serverName);
|
|
|
|
|
strcpy(temp_unc + 2 + strlen(pSesInfo->serverName), "\\IPC$");
|
|
|
|
|
rc = CIFSTCon(xid, pSesInfo, temp_unc, NULL, nls_codepage);
|
|
|
|
|
cFYI(1,
|
|
|
|
|
("CIFS Tcon rc = %d ipc_tid = %d", rc,pSesInfo->ipc_tid));
|
|
|
|
|
kfree(temp_unc);
|
|
|
|
|
}
|
|
|
|
|
if (rc == 0)
|
|
|
|
|
rc = CIFSGetDFSRefer(xid, pSesInfo, old_path, preferrals,
|
|
|
|
|
pnum_referrals, nls_codepage);
|
|
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See RFC1001 section 14 on representation of Netbios names */
|
|
|
|
|
static void rfc1002mangle(char * target,char * source, unsigned int length)
|
|
|
|
|
{
|
|
|
|
|
unsigned int i,j;
|
|
|
|
|
|
|
|
|
|
for(i=0,j=0;i<(length);i++) {
|
|
|
|
|
/* mask a nibble at a time and encode */
|
|
|
|
|
target[j] = 'A' + (0x0F & (source[i] >> 4));
|
|
|
|
|
target[j+1] = 'A' + (0x0F & source[i]);
|
|
|
|
|
j+=2;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket,
|
|
|
|
|
char * netbios_name)
|
|
|
|
|
{
|
|
|
|
|
int rc = 0;
|
|
|
|
|
int connected = 0;
|
|
|
|
|
__be16 orig_port = 0;
|
|
|
|
|
|
|
|
|
|
if(*csocket == NULL) {
|
|
|
|
|
rc = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, csocket);
|
|
|
|
|
if (rc < 0) {
|
|
|
|
|
cERROR(1, ("Error %d creating socket",rc));
|
|
|
|
|
*csocket = NULL;
|
|
|
|
|
return rc;
|
|
|
|
|
} else {
|
|
|
|
|
/* BB other socket options to set KEEPALIVE, NODELAY? */
|
|
|
|
|
cFYI(1,("Socket created"));
|
|
|
|
|
(*csocket)->sk->sk_allocation = GFP_NOFS;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
psin_server->sin_family = AF_INET;
|
|
|
|
|
if(psin_server->sin_port) { /* user overrode default port */
|
|
|
|
|
rc = (*csocket)->ops->connect(*csocket,
|
|
|
|
|
(struct sockaddr *) psin_server,
|
|
|
|
|
sizeof (struct sockaddr_in),0);
|
|
|
|
|
if (rc >= 0)
|
|
|
|
|
connected = 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if(!connected) {
|
|
|
|
|
/* save original port so we can retry user specified port
|
|
|
|
|
later if fall back ports fail this time */
|
|
|
|
|
orig_port = psin_server->sin_port;
|
|
|
|
|
|
|
|
|
|
/* do not retry on the same port we just failed on */
|
|
|
|
|
if(psin_server->sin_port != htons(CIFS_PORT)) {
|
|
|
|
|
psin_server->sin_port = htons(CIFS_PORT);
|
|
|
|
|
|
|
|
|
|
rc = (*csocket)->ops->connect(*csocket,
|
|
|
|
|
(struct sockaddr *) psin_server,
|
|
|
|
|
sizeof (struct sockaddr_in),0);
|
|
|
|
|
if (rc >= 0)
|
|
|
|
|
connected = 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (!connected) {
|
|
|
|
|
psin_server->sin_port = htons(RFC1001_PORT);
|
|
|
|
|
rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *)
|
|
|
|
|
psin_server, sizeof (struct sockaddr_in),0);
|
|
|
|
|
if (rc >= 0)
|
|
|
|
|
connected = 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* give up here - unless we want to retry on different
|
|
|
|
|
protocol families some day */
|
|
|
|
|
if (!connected) {
|
|
|
|
|
if(orig_port)
|
|
|
|
|
psin_server->sin_port = orig_port;
|
|
|
|
|
cFYI(1,("Error %d connecting to server via ipv4",rc));
|
|
|
|
|
sock_release(*csocket);
|
|
|
|
|
*csocket = NULL;
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
/* Eventually check for other socket options to change from
|
|
|
|
|
the default. sock_setsockopt not used because it expects
|
|
|
|
|
user space buffer */
|
|
|
|
|
(*csocket)->sk->sk_rcvtimeo = 7 * HZ;
|
|
|
|
|
|
|
|
|
|
/* send RFC1001 sessinit */
|
|
|
|
|
|
|
|
|
|
if(psin_server->sin_port == htons(RFC1001_PORT)) {
|
|
|
|
|
/* some servers require RFC1001 sessinit before sending
|
|
|
|
|
negprot - BB check reconnection in case where second
|
|
|
|
|
sessinit is sent but no second negprot */
|
|
|
|
|
struct rfc1002_session_packet * ses_init_buf;
|
|
|
|
|
struct smb_hdr * smb_buf;
|
|
|
|
|
ses_init_buf = cifs_kcalloc(sizeof(struct rfc1002_session_packet), GFP_KERNEL);
|
|
|
|
|
if(ses_init_buf) {
|
|
|
|
|
ses_init_buf->trailer.session_req.called_len = 32;
|
|
|
|
|
rfc1002mangle(ses_init_buf->trailer.session_req.called_name,
|
|
|
|
|
DEFAULT_CIFS_CALLED_NAME,16);
|
|
|
|
|
ses_init_buf->trailer.session_req.calling_len = 32;
|
|
|
|
|
/* calling name ends in null (byte 16) from old smb
|
|
|
|
|
convention. */
|
|
|
|
|
if(netbios_name && (netbios_name[0] !=0)) {
|
|
|
|
|
rfc1002mangle(ses_init_buf->trailer.session_req.calling_name,
|
|
|
|
|
netbios_name,16);
|
|
|
|
|
} else {
|
|
|
|
|
rfc1002mangle(ses_init_buf->trailer.session_req.calling_name,
|
|
|
|
|
"LINUX_CIFS_CLNT",16);
|
|
|
|
|
}
|
|
|
|
|
ses_init_buf->trailer.session_req.scope1 = 0;
|
|
|
|
|
ses_init_buf->trailer.session_req.scope2 = 0;
|
|
|
|
|
smb_buf = (struct smb_hdr *)ses_init_buf;
|
|
|
|
|
/* sizeof RFC1002_SESSION_REQUEST with no scope */
|
|
|
|
|
smb_buf->smb_buf_length = 0x81000044;
|
|
|
|
|
rc = smb_send(*csocket, smb_buf, 0x44,
|
|
|
|
|
(struct sockaddr *)psin_server);
|
|
|
|
|
kfree(ses_init_buf);
|
|
|
|
|
}
|
|
|
|
|
/* else the negprot may still work without this
|
|
|
|
|
even though malloc failed */
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket)
|
|
|
|
|
{
|
|
|
|
|
int rc = 0;
|
|
|
|
|
int connected = 0;
|
|
|
|
|
__be16 orig_port = 0;
|
|
|
|
|
|
|
|
|
|
if(*csocket == NULL) {
|
|
|
|
|
rc = sock_create_kern(PF_INET6, SOCK_STREAM, IPPROTO_TCP, csocket);
|
|
|
|
|
if (rc < 0) {
|
|
|
|
|
cERROR(1, ("Error %d creating ipv6 socket",rc));
|
|
|
|
|
*csocket = NULL;
|
|
|
|
|
return rc;
|
|
|
|
|
} else {
|
|
|
|
|
/* BB other socket options to set KEEPALIVE, NODELAY? */
|
|
|
|
|
cFYI(1,("ipv6 Socket created"));
|
|
|
|
|
(*csocket)->sk->sk_allocation = GFP_NOFS;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
psin_server->sin6_family = AF_INET6;
|
|
|
|
|
|
|
|
|
|
if(psin_server->sin6_port) { /* user overrode default port */
|
|
|
|
|
rc = (*csocket)->ops->connect(*csocket,
|
|
|
|
|
(struct sockaddr *) psin_server,
|
|
|
|
|
sizeof (struct sockaddr_in6),0);
|
|
|
|
|
if (rc >= 0)
|
|
|
|
|
connected = 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if(!connected) {
|
|
|
|
|
/* save original port so we can retry user specified port
|
|
|
|
|
later if fall back ports fail this time */
|
|
|
|
|
|
|
|
|
|
orig_port = psin_server->sin6_port;
|
|
|
|
|
/* do not retry on the same port we just failed on */
|
|
|
|
|
if(psin_server->sin6_port != htons(CIFS_PORT)) {
|
|
|
|
|
psin_server->sin6_port = htons(CIFS_PORT);
|
|
|
|
|
|
|
|
|
|
rc = (*csocket)->ops->connect(*csocket,
|
|
|
|
|
(struct sockaddr *) psin_server,
|
|
|
|
|
sizeof (struct sockaddr_in6),0);
|
|
|
|
|
if (rc >= 0)
|
|
|
|
|
connected = 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (!connected) {
|
|
|
|
|
psin_server->sin6_port = htons(RFC1001_PORT);
|
|
|
|
|
rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *)
|
|
|
|
|
psin_server, sizeof (struct sockaddr_in6),0);
|
|
|
|
|
if (rc >= 0)
|
|
|
|
|
connected = 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* give up here - unless we want to retry on different
|
|
|
|
|
protocol families some day */
|
|
|
|
|
if (!connected) {
|
|
|
|
|
if(orig_port)
|
|
|
|
|
psin_server->sin6_port = orig_port;
|
|
|
|
|
cFYI(1,("Error %d connecting to server via ipv6",rc));
|
|
|
|
|
sock_release(*csocket);
|
|
|
|
|
*csocket = NULL;
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
/* Eventually check for other socket options to change from
|
|
|
|
|
the default. sock_setsockopt not used because it expects
|
|
|
|
|
user space buffer */
|
|
|
|
|
(*csocket)->sk->sk_rcvtimeo = 7 * HZ;
|
|
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
|
|
|
|
|
char *mount_data, const char *devname)
|
|
|
|
|
{
|
|
|
|
|
int rc = 0;
|
|
|
|
|
int xid;
|
|
|
|
|
int address_type = AF_INET;
|
|
|
|
|
struct socket *csocket = NULL;
|
|
|
|
|
struct sockaddr_in sin_server;
|
|
|
|
|
struct sockaddr_in6 sin_server6;
|
|
|
|
|
struct smb_vol volume_info;
|
|
|
|
|
struct cifsSesInfo *pSesInfo = NULL;
|
|
|
|
|
struct cifsSesInfo *existingCifsSes = NULL;
|
|
|
|
|
struct cifsTconInfo *tcon = NULL;
|
|
|
|
|
struct TCP_Server_Info *srvTcp = NULL;
|
|
|
|
|
|
|
|
|
|
xid = GetXid();
|
|
|
|
|
|
|
|
|
|
/* cFYI(1, ("Entering cifs_mount. Xid: %d with: %s", xid, mount_data)); */
|
|
|
|
|
|
|
|
|
|
memset(&volume_info,0,sizeof(struct smb_vol));
|
|
|
|
|
if (cifs_parse_mount_options(mount_data, devname, &volume_info)) {
|
|
|
|
|
if(volume_info.UNC)
|
|
|
|
|
kfree(volume_info.UNC);
|
|
|
|
|
if(volume_info.password)
|
|
|
|
|
kfree(volume_info.password);
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (volume_info.username) {
|
|
|
|
|
/* BB fixme parse for domain name here */
|
|
|
|
|
cFYI(1, ("Username: %s ", volume_info.username));
|
|
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
cifserror("No username specified ");
|
|
|
|
|
/* In userspace mount helper we can get user name from alternate
|
|
|
|
|
locations such as env variables and files on disk */
|
|
|
|
|
if(volume_info.UNC)
|
|
|
|
|
kfree(volume_info.UNC);
|
|
|
|
|
if(volume_info.password)
|
|
|
|
|
kfree(volume_info.password);
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (volume_info.UNCip && volume_info.UNC) {
|
|
|
|
|
rc = cifs_inet_pton(AF_INET, volume_info.UNCip,&sin_server.sin_addr.s_addr);
|
|
|
|
|
|
|
|
|
|
if(rc <= 0) {
|
|
|
|
|
/* not ipv4 address, try ipv6 */
|
|
|
|
|
rc = cifs_inet_pton(AF_INET6,volume_info.UNCip,&sin_server6.sin6_addr.in6_u);
|
|
|
|
|
if(rc > 0)
|
|
|
|
|
address_type = AF_INET6;
|
|
|
|
|
} else {
|
|
|
|
|
address_type = AF_INET;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if(rc <= 0) {
|
|
|
|
|
/* we failed translating address */
|
|
|
|
|
if(volume_info.UNC)
|
|
|
|
|
kfree(volume_info.UNC);
|
|
|
|
|
if(volume_info.password)
|
|
|
|
|
kfree(volume_info.password);
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
cFYI(1, ("UNC: %s ip: %s", volume_info.UNC, volume_info.UNCip));
|
|
|
|
|
/* success */
|
|
|
|
|
rc = 0;
|
|
|
|
|
} else if (volume_info.UNCip){
|
|
|
|
|
/* BB using ip addr as server name connect to the DFS root below */
|
|
|
|
|
cERROR(1,("Connecting to DFS root not implemented yet"));
|
|
|
|
|
if(volume_info.UNC)
|
|
|
|
|
kfree(volume_info.UNC);
|
|
|
|
|
if(volume_info.password)
|
|
|
|
|
kfree(volume_info.password);
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
} else /* which servers DFS root would we conect to */ {
|
|
|
|
|
cERROR(1,
|
|
|
|
|
("CIFS mount error: No UNC path (e.g. -o unc=//192.168.1.100/public) specified "));
|
|
|
|
|
if(volume_info.UNC)
|
|
|
|
|
kfree(volume_info.UNC);
|
|
|
|
|
if(volume_info.password)
|
|
|
|
|
kfree(volume_info.password);
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* this is needed for ASCII cp to Unicode converts */
|
|
|
|
|
if(volume_info.iocharset == NULL) {
|
|
|
|
|
cifs_sb->local_nls = load_nls_default();
|
|
|
|
|
/* load_nls_default can not return null */
|
|
|
|
|
} else {
|
|
|
|
|
cifs_sb->local_nls = load_nls(volume_info.iocharset);
|
|
|
|
|
if(cifs_sb->local_nls == NULL) {
|
|
|
|
|
cERROR(1,("CIFS mount error: iocharset %s not found",volume_info.iocharset));
|
|
|
|
|
if(volume_info.UNC)
|
|
|
|
|
kfree(volume_info.UNC);
|
|
|
|
|
if(volume_info.password)
|
|
|
|
|
kfree(volume_info.password);
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return -ELIBACC;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if(address_type == AF_INET)
|
|
|
|
|
existingCifsSes = cifs_find_tcp_session(&sin_server.sin_addr,
|
|
|
|
|
NULL /* no ipv6 addr */,
|
|
|
|
|
volume_info.username, &srvTcp);
|
|
|
|
|
else if(address_type == AF_INET6)
|
|
|
|
|
existingCifsSes = cifs_find_tcp_session(NULL /* no ipv4 addr */,
|
|
|
|
|
&sin_server6.sin6_addr,
|
|
|
|
|
volume_info.username, &srvTcp);
|
|
|
|
|
else {
|
|
|
|
|
if(volume_info.UNC)
|
|
|
|
|
kfree(volume_info.UNC);
|
|
|
|
|
if(volume_info.password)
|
|
|
|
|
kfree(volume_info.password);
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if (srvTcp) {
|
|
|
|
|
cFYI(1, ("Existing tcp session with server found "));
|
|
|
|
|
} else { /* create socket */
|
|
|
|
|
if(volume_info.port)
|
|
|
|
|
sin_server.sin_port = htons(volume_info.port);
|
|
|
|
|
else
|
|
|
|
|
sin_server.sin_port = 0;
|
|
|
|
|
rc = ipv4_connect(&sin_server,&csocket,volume_info.source_rfc1001_name);
|
|
|
|
|
if (rc < 0) {
|
|
|
|
|
cERROR(1,
|
|
|
|
|
("Error connecting to IPv4 socket. Aborting operation"));
|
|
|
|
|
if(csocket != NULL)
|
|
|
|
|
sock_release(csocket);
|
|
|
|
|
if(volume_info.UNC)
|
|
|
|
|
kfree(volume_info.UNC);
|
|
|
|
|
if(volume_info.password)
|
|
|
|
|
kfree(volume_info.password);
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
srvTcp = kmalloc(sizeof (struct TCP_Server_Info), GFP_KERNEL);
|
|
|
|
|
if (srvTcp == NULL) {
|
|
|
|
|
rc = -ENOMEM;
|
|
|
|
|
sock_release(csocket);
|
|
|
|
|
if(volume_info.UNC)
|
|
|
|
|
kfree(volume_info.UNC);
|
|
|
|
|
if(volume_info.password)
|
|
|
|
|
kfree(volume_info.password);
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return rc;
|
|
|
|
|
} else {
|
|
|
|
|
memset(srvTcp, 0, sizeof (struct TCP_Server_Info));
|
|
|
|
|
memcpy(&srvTcp->addr.sockAddr, &sin_server, sizeof (struct sockaddr_in));
|
|
|
|
|
atomic_set(&srvTcp->inFlight,0);
|
|
|
|
|
/* BB Add code for ipv6 case too */
|
|
|
|
|
srvTcp->ssocket = csocket;
|
|
|
|
|
srvTcp->protocolType = IPV4;
|
|
|
|
|
init_waitqueue_head(&srvTcp->response_q);
|
|
|
|
|
init_waitqueue_head(&srvTcp->request_q);
|
|
|
|
|
INIT_LIST_HEAD(&srvTcp->pending_mid_q);
|
|
|
|
|
/* at this point we are the only ones with the pointer
|
|
|
|
|
to the struct since the kernel thread not created yet
|
|
|
|
|
so no need to spinlock this init of tcpStatus */
|
|
|
|
|
srvTcp->tcpStatus = CifsNew;
|
|
|
|
|
init_MUTEX(&srvTcp->tcpSem);
|
|
|
|
|
rc = (int)kernel_thread((void *)(void *)cifs_demultiplex_thread, srvTcp,
|
|
|
|
|
CLONE_FS | CLONE_FILES | CLONE_VM);
|
|
|
|
|
if(rc < 0) {
|
|
|
|
|
rc = -ENOMEM;
|
|
|
|
|
sock_release(csocket);
|
|
|
|
|
if(volume_info.UNC)
|
|
|
|
|
kfree(volume_info.UNC);
|
|
|
|
|
if(volume_info.password)
|
|
|
|
|
kfree(volume_info.password);
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return rc;
|
|
|
|
|
} else
|
|
|
|
|
rc = 0;
|
|
|
|
|
memcpy(srvTcp->workstation_RFC1001_name, volume_info.source_rfc1001_name,16);
|
2005-04-29 05:41:05 +00:00
|
|
|
srvTcp->sequence_number = 0;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (existingCifsSes) {
|
|
|
|
|
pSesInfo = existingCifsSes;
|
|
|
|
|
cFYI(1, ("Existing smb sess found "));
|
|
|
|
|
if(volume_info.password)
|
|
|
|
|
kfree(volume_info.password);
|
|
|
|
|
/* volume_info.UNC freed at end of function */
|
|
|
|
|
} else if (!rc) {
|
|
|
|
|
cFYI(1, ("Existing smb sess not found "));
|
|
|
|
|
pSesInfo = sesInfoAlloc();
|
|
|
|
|
if (pSesInfo == NULL)
|
|
|
|
|
rc = -ENOMEM;
|
|
|
|
|
else {
|
|
|
|
|
pSesInfo->server = srvTcp;
|
|
|
|
|
sprintf(pSesInfo->serverName, "%u.%u.%u.%u",
|
|
|
|
|
NIPQUAD(sin_server.sin_addr.s_addr));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!rc){
|
|
|
|
|
/* volume_info.password freed at unmount */
|
|
|
|
|
if (volume_info.password)
|
|
|
|
|
pSesInfo->password = volume_info.password;
|
|
|
|
|
if (volume_info.username)
|
|
|
|
|
strncpy(pSesInfo->userName,
|
|
|
|
|
volume_info.username,MAX_USERNAME_SIZE);
|
|
|
|
|
if (volume_info.domainname)
|
|
|
|
|
strncpy(pSesInfo->domainName,
|
|
|
|
|
volume_info.domainname,MAX_USERNAME_SIZE);
|
|
|
|
|
pSesInfo->linux_uid = volume_info.linux_uid;
|
|
|
|
|
down(&pSesInfo->sesSem);
|
|
|
|
|
rc = cifs_setup_session(xid,pSesInfo, cifs_sb->local_nls);
|
|
|
|
|
up(&pSesInfo->sesSem);
|
|
|
|
|
if(!rc)
|
|
|
|
|
atomic_inc(&srvTcp->socketUseCount);
|
|
|
|
|
} else
|
|
|
|
|
if(volume_info.password)
|
|
|
|
|
kfree(volume_info.password);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* search for existing tcon to this server share */
|
|
|
|
|
if (!rc) {
|
|
|
|
|
if((volume_info.rsize) && (volume_info.rsize <= CIFSMaxBufSize))
|
|
|
|
|
cifs_sb->rsize = volume_info.rsize;
|
|
|
|
|
else
|
|
|
|
|
cifs_sb->rsize = srvTcp->maxBuf - MAX_CIFS_HDR_SIZE; /* default */
|
|
|
|
|
if((volume_info.wsize) && (volume_info.wsize <= CIFSMaxBufSize))
|
|
|
|
|
cifs_sb->wsize = volume_info.wsize;
|
|
|
|
|
else
|
|
|
|
|
cifs_sb->wsize = CIFSMaxBufSize; /* default */
|
|
|
|
|
if(cifs_sb->rsize < PAGE_CACHE_SIZE) {
|
|
|
|
|
cifs_sb->rsize = PAGE_CACHE_SIZE;
|
|
|
|
|
cERROR(1,("Attempt to set readsize for mount to less than one page (4096)"));
|
|
|
|
|
}
|
|
|
|
|
cifs_sb->mnt_uid = volume_info.linux_uid;
|
|
|
|
|
cifs_sb->mnt_gid = volume_info.linux_gid;
|
|
|
|
|
cifs_sb->mnt_file_mode = volume_info.file_mode;
|
|
|
|
|
cifs_sb->mnt_dir_mode = volume_info.dir_mode;
|
|
|
|
|
cFYI(1,("file mode: 0x%x dir mode: 0x%x",cifs_sb->mnt_file_mode,cifs_sb->mnt_dir_mode));
|
|
|
|
|
|
|
|
|
|
if(volume_info.noperm)
|
|
|
|
|
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_PERM;
|
|
|
|
|
if(volume_info.setuids)
|
|
|
|
|
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SET_UID;
|
|
|
|
|
if(volume_info.server_ino)
|
|
|
|
|
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SERVER_INUM;
|
|
|
|
|
if(volume_info.no_xattr)
|
|
|
|
|
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_XATTR;
|
|
|
|
|
if(volume_info.direct_io) {
|
|
|
|
|
cERROR(1,("mounting share using direct i/o"));
|
|
|
|
|
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
tcon =
|
|
|
|
|
find_unc(sin_server.sin_addr.s_addr, volume_info.UNC,
|
|
|
|
|
volume_info.username);
|
|
|
|
|
if (tcon) {
|
|
|
|
|
cFYI(1, ("Found match on UNC path "));
|
|
|
|
|
/* we can have only one retry value for a connection
|
|
|
|
|
to a share so for resources mounted more than once
|
|
|
|
|
to the same server share the last value passed in
|
|
|
|
|
for the retry flag is used */
|
|
|
|
|
tcon->retry = volume_info.retry;
|
|
|
|
|
} else {
|
|
|
|
|
tcon = tconInfoAlloc();
|
|
|
|
|
if (tcon == NULL)
|
|
|
|
|
rc = -ENOMEM;
|
|
|
|
|
else {
|
|
|
|
|
/* check for null share name ie connect to dfs root */
|
|
|
|
|
|
|
|
|
|
/* BB check if this works for exactly length three strings */
|
|
|
|
|
if ((strchr(volume_info.UNC + 3, '\\') == NULL)
|
|
|
|
|
&& (strchr(volume_info.UNC + 3, '/') ==
|
|
|
|
|
NULL)) {
|
|
|
|
|
rc = connect_to_dfs_path(xid,
|
|
|
|
|
pSesInfo,
|
|
|
|
|
"",
|
|
|
|
|
cifs_sb->
|
|
|
|
|
local_nls);
|
|
|
|
|
if(volume_info.UNC)
|
|
|
|
|
kfree(volume_info.UNC);
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
} else {
|
|
|
|
|
rc = CIFSTCon(xid, pSesInfo,
|
|
|
|
|
volume_info.UNC,
|
|
|
|
|
tcon, cifs_sb->local_nls);
|
|
|
|
|
cFYI(1, ("CIFS Tcon rc = %d", rc));
|
|
|
|
|
}
|
|
|
|
|
if (!rc) {
|
|
|
|
|
atomic_inc(&pSesInfo->inUse);
|
|
|
|
|
tcon->retry = volume_info.retry;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if(pSesInfo) {
|
|
|
|
|
if (pSesInfo->capabilities & CAP_LARGE_FILES) {
|
|
|
|
|
sb->s_maxbytes = (u64) 1 << 63;
|
|
|
|
|
} else
|
|
|
|
|
sb->s_maxbytes = (u64) 1 << 31; /* 2 GB */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
sb->s_time_gran = 100;
|
|
|
|
|
|
|
|
|
|
/* on error free sesinfo and tcon struct if needed */
|
|
|
|
|
if (rc) {
|
|
|
|
|
/* if session setup failed, use count is zero but
|
|
|
|
|
we still need to free cifsd thread */
|
|
|
|
|
if(atomic_read(&srvTcp->socketUseCount) == 0) {
|
|
|
|
|
spin_lock(&GlobalMid_Lock);
|
|
|
|
|
srvTcp->tcpStatus = CifsExiting;
|
|
|
|
|
spin_unlock(&GlobalMid_Lock);
|
|
|
|
|
if(srvTcp->tsk)
|
|
|
|
|
send_sig(SIGKILL,srvTcp->tsk,1);
|
|
|
|
|
}
|
|
|
|
|
/* If find_unc succeeded then rc == 0 so we can not end */
|
|
|
|
|
if (tcon) /* up accidently freeing someone elses tcon struct */
|
|
|
|
|
tconInfoFree(tcon);
|
|
|
|
|
if (existingCifsSes == NULL) {
|
|
|
|
|
if (pSesInfo) {
|
|
|
|
|
if ((pSesInfo->server) &&
|
|
|
|
|
(pSesInfo->status == CifsGood)) {
|
|
|
|
|
int temp_rc;
|
|
|
|
|
temp_rc = CIFSSMBLogoff(xid, pSesInfo);
|
|
|
|
|
/* if the socketUseCount is now zero */
|
|
|
|
|
if((temp_rc == -ESHUTDOWN) &&
|
|
|
|
|
(pSesInfo->server->tsk))
|
|
|
|
|
send_sig(SIGKILL,pSesInfo->server->tsk,1);
|
|
|
|
|
} else
|
|
|
|
|
cFYI(1, ("No session or bad tcon"));
|
|
|
|
|
sesInfoFree(pSesInfo);
|
|
|
|
|
/* pSesInfo = NULL; */
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
atomic_inc(&tcon->useCount);
|
|
|
|
|
cifs_sb->tcon = tcon;
|
|
|
|
|
tcon->ses = pSesInfo;
|
|
|
|
|
|
|
|
|
|
/* do not care if following two calls succeed - informational only */
|
|
|
|
|
CIFSSMBQFSDeviceInfo(xid, tcon, cifs_sb->local_nls);
|
|
|
|
|
CIFSSMBQFSAttributeInfo(xid, tcon, cifs_sb->local_nls);
|
|
|
|
|
if (tcon->ses->capabilities & CAP_UNIX) {
|
|
|
|
|
if(!CIFSSMBQFSUnixInfo(xid, tcon, cifs_sb->local_nls)) {
|
|
|
|
|
if(!volume_info.no_psx_acl) {
|
|
|
|
|
if(CIFS_UNIX_POSIX_ACL_CAP &
|
|
|
|
|
le64_to_cpu(tcon->fsUnixInfo.Capability))
|
|
|
|
|
cFYI(1,("server negotiated posix acl support"));
|
|
|
|
|
sb->s_flags |= MS_POSIXACL;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* volume_info.password is freed above when existing session found
|
|
|
|
|
(in which case it is not needed anymore) but when new sesion is created
|
|
|
|
|
the password ptr is put in the new session structure (in which case the
|
|
|
|
|
password will be freed at unmount time) */
|
|
|
|
|
if(volume_info.UNC)
|
|
|
|
|
kfree(volume_info.UNC);
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses,
|
|
|
|
|
char session_key[CIFS_SESSION_KEY_SIZE],
|
|
|
|
|
const struct nls_table *nls_codepage)
|
|
|
|
|
{
|
|
|
|
|
struct smb_hdr *smb_buffer;
|
|
|
|
|
struct smb_hdr *smb_buffer_response;
|
|
|
|
|
SESSION_SETUP_ANDX *pSMB;
|
|
|
|
|
SESSION_SETUP_ANDX *pSMBr;
|
|
|
|
|
char *bcc_ptr;
|
|
|
|
|
char *user;
|
|
|
|
|
char *domain;
|
|
|
|
|
int rc = 0;
|
|
|
|
|
int remaining_words = 0;
|
|
|
|
|
int bytes_returned = 0;
|
|
|
|
|
int len;
|
|
|
|
|
__u32 capabilities;
|
|
|
|
|
__u16 count;
|
|
|
|
|
|
|
|
|
|
cFYI(1, ("In sesssetup "));
|
|
|
|
|
if(ses == NULL)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
user = ses->userName;
|
|
|
|
|
domain = ses->domainName;
|
|
|
|
|
smb_buffer = cifs_buf_get();
|
|
|
|
|
if (smb_buffer == NULL) {
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
smb_buffer_response = smb_buffer;
|
|
|
|
|
pSMBr = pSMB = (SESSION_SETUP_ANDX *) smb_buffer;
|
|
|
|
|
|
|
|
|
|
/* send SMBsessionSetup here */
|
|
|
|
|
header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
|
|
|
|
|
NULL /* no tCon exists yet */ , 13 /* wct */ );
|
|
|
|
|
|
|
|
|
|
pSMB->req_no_secext.AndXCommand = 0xFF;
|
|
|
|
|
pSMB->req_no_secext.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
|
|
|
|
|
pSMB->req_no_secext.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
|
|
|
|
|
|
|
|
|
|
if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
|
|
|
|
|
|
|
|
|
|
capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
|
|
|
|
|
CAP_LARGE_WRITE_X | CAP_LARGE_READ_X;
|
|
|
|
|
if (ses->capabilities & CAP_UNICODE) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_UNICODE;
|
|
|
|
|
capabilities |= CAP_UNICODE;
|
|
|
|
|
}
|
|
|
|
|
if (ses->capabilities & CAP_STATUS32) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
|
|
|
|
|
capabilities |= CAP_STATUS32;
|
|
|
|
|
}
|
|
|
|
|
if (ses->capabilities & CAP_DFS) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_DFS;
|
|
|
|
|
capabilities |= CAP_DFS;
|
|
|
|
|
}
|
|
|
|
|
pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities);
|
|
|
|
|
|
|
|
|
|
pSMB->req_no_secext.CaseInsensitivePasswordLength =
|
|
|
|
|
cpu_to_le16(CIFS_SESSION_KEY_SIZE);
|
|
|
|
|
|
|
|
|
|
pSMB->req_no_secext.CaseSensitivePasswordLength =
|
|
|
|
|
cpu_to_le16(CIFS_SESSION_KEY_SIZE);
|
|
|
|
|
bcc_ptr = pByteArea(smb_buffer);
|
|
|
|
|
memcpy(bcc_ptr, (char *) session_key, CIFS_SESSION_KEY_SIZE);
|
|
|
|
|
bcc_ptr += CIFS_SESSION_KEY_SIZE;
|
|
|
|
|
memcpy(bcc_ptr, (char *) session_key, CIFS_SESSION_KEY_SIZE);
|
|
|
|
|
bcc_ptr += CIFS_SESSION_KEY_SIZE;
|
|
|
|
|
|
|
|
|
|
if (ses->capabilities & CAP_UNICODE) {
|
|
|
|
|
if ((long) bcc_ptr % 2) { /* must be word aligned for Unicode */
|
|
|
|
|
*bcc_ptr = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
}
|
|
|
|
|
if(user == NULL)
|
|
|
|
|
bytes_returned = 0; /* skill null user */
|
|
|
|
|
else
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, user, 100,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
/* convert number of 16 bit words to bytes */
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
bcc_ptr += 2; /* trailing null */
|
|
|
|
|
if (domain == NULL)
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr,
|
|
|
|
|
"CIFS_LINUX_DOM", 32, nls_codepage);
|
|
|
|
|
else
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, domain, 64,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
bcc_ptr += 2;
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, "Linux version ",
|
|
|
|
|
32, nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, system_utsname.release,
|
|
|
|
|
32, nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
bcc_ptr += 2;
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, CIFS_NETWORK_OPSYS,
|
|
|
|
|
64, nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
bcc_ptr += 2;
|
|
|
|
|
} else {
|
|
|
|
|
if(user != NULL) {
|
|
|
|
|
strncpy(bcc_ptr, user, 200);
|
|
|
|
|
bcc_ptr += strnlen(user, 200);
|
|
|
|
|
}
|
|
|
|
|
*bcc_ptr = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
if (domain == NULL) {
|
|
|
|
|
strcpy(bcc_ptr, "CIFS_LINUX_DOM");
|
|
|
|
|
bcc_ptr += strlen("CIFS_LINUX_DOM") + 1;
|
|
|
|
|
} else {
|
|
|
|
|
strncpy(bcc_ptr, domain, 64);
|
|
|
|
|
bcc_ptr += strnlen(domain, 64);
|
|
|
|
|
*bcc_ptr = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
}
|
|
|
|
|
strcpy(bcc_ptr, "Linux version ");
|
|
|
|
|
bcc_ptr += strlen("Linux version ");
|
|
|
|
|
strcpy(bcc_ptr, system_utsname.release);
|
|
|
|
|
bcc_ptr += strlen(system_utsname.release) + 1;
|
|
|
|
|
strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
|
|
|
|
|
bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
|
|
|
|
|
}
|
|
|
|
|
count = (long) bcc_ptr - (long) pByteArea(smb_buffer);
|
|
|
|
|
smb_buffer->smb_buf_length += count;
|
|
|
|
|
pSMB->req_no_secext.ByteCount = cpu_to_le16(count);
|
|
|
|
|
|
|
|
|
|
rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
|
|
|
|
|
&bytes_returned, 1);
|
|
|
|
|
if (rc) {
|
|
|
|
|
/* rc = map_smb_to_linux_error(smb_buffer_response); now done in SendReceive */
|
|
|
|
|
} else if ((smb_buffer_response->WordCount == 3)
|
|
|
|
|
|| (smb_buffer_response->WordCount == 4)) {
|
|
|
|
|
__u16 action = le16_to_cpu(pSMBr->resp.Action);
|
|
|
|
|
__u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength);
|
|
|
|
|
if (action & GUEST_LOGIN)
|
|
|
|
|
cFYI(1, (" Guest login")); /* do we want to mark SesInfo struct ? */
|
|
|
|
|
ses->Suid = smb_buffer_response->Uid; /* UID left in wire format (le) */
|
|
|
|
|
cFYI(1, ("UID = %d ", ses->Suid));
|
|
|
|
|
/* response can have either 3 or 4 word count - Samba sends 3 */
|
|
|
|
|
bcc_ptr = pByteArea(smb_buffer_response);
|
|
|
|
|
if ((pSMBr->resp.hdr.WordCount == 3)
|
|
|
|
|
|| ((pSMBr->resp.hdr.WordCount == 4)
|
|
|
|
|
&& (blob_len < pSMBr->resp.ByteCount))) {
|
|
|
|
|
if (pSMBr->resp.hdr.WordCount == 4)
|
|
|
|
|
bcc_ptr += blob_len;
|
|
|
|
|
|
|
|
|
|
if (smb_buffer->Flags2 & SMBFLG2_UNICODE) {
|
|
|
|
|
if ((long) (bcc_ptr) % 2) {
|
|
|
|
|
remaining_words =
|
|
|
|
|
(BCC(smb_buffer_response) - 1) /2;
|
|
|
|
|
bcc_ptr++; /* Unicode strings must be word aligned */
|
|
|
|
|
} else {
|
|
|
|
|
remaining_words =
|
|
|
|
|
BCC(smb_buffer_response) / 2;
|
|
|
|
|
}
|
|
|
|
|
len =
|
|
|
|
|
UniStrnlen((wchar_t *) bcc_ptr,
|
|
|
|
|
remaining_words - 1);
|
|
|
|
|
/* We look for obvious messed up bcc or strings in response so we do not go off
|
|
|
|
|
the end since (at least) WIN2K and Windows XP have a major bug in not null
|
|
|
|
|
terminating last Unicode string in response */
|
|
|
|
|
ses->serverOS = cifs_kcalloc(2 * (len + 1), GFP_KERNEL);
|
|
|
|
|
cifs_strfromUCS_le(ses->serverOS,
|
|
|
|
|
(wchar_t *)bcc_ptr, len,nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * (len + 1);
|
|
|
|
|
remaining_words -= len + 1;
|
|
|
|
|
ses->serverOS[2 * len] = 0;
|
|
|
|
|
ses->serverOS[1 + (2 * len)] = 0;
|
|
|
|
|
if (remaining_words > 0) {
|
|
|
|
|
len = UniStrnlen((wchar_t *)bcc_ptr,
|
|
|
|
|
remaining_words-1);
|
|
|
|
|
ses->serverNOS =cifs_kcalloc(2 * (len + 1),GFP_KERNEL);
|
|
|
|
|
cifs_strfromUCS_le(ses->serverNOS,
|
|
|
|
|
(wchar_t *)bcc_ptr,len,nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * (len + 1);
|
|
|
|
|
ses->serverNOS[2 * len] = 0;
|
|
|
|
|
ses->serverNOS[1 + (2 * len)] = 0;
|
|
|
|
|
if(strncmp(ses->serverNOS,
|
|
|
|
|
"NT LAN Manager 4",16) == 0) {
|
|
|
|
|
cFYI(1,("NT4 server"));
|
|
|
|
|
ses->flags |= CIFS_SES_NT4;
|
|
|
|
|
}
|
|
|
|
|
remaining_words -= len + 1;
|
|
|
|
|
if (remaining_words > 0) {
|
|
|
|
|
len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words);
|
|
|
|
|
/* last string is not always null terminated (for e.g. for Windows XP & 2000) */
|
|
|
|
|
ses->serverDomain =
|
|
|
|
|
cifs_kcalloc(2*(len+1),GFP_KERNEL);
|
|
|
|
|
cifs_strfromUCS_le(ses->serverDomain,
|
|
|
|
|
(wchar_t *)bcc_ptr,len,nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * (len + 1);
|
|
|
|
|
ses->serverDomain[2*len] = 0;
|
|
|
|
|
ses->serverDomain[1+(2*len)] = 0;
|
|
|
|
|
} /* else no more room so create dummy domain string */
|
|
|
|
|
else
|
|
|
|
|
ses->serverDomain =
|
|
|
|
|
cifs_kcalloc(2,
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
} else { /* no room so create dummy domain and NOS string */
|
|
|
|
|
ses->serverDomain =
|
|
|
|
|
cifs_kcalloc(2, GFP_KERNEL);
|
|
|
|
|
ses->serverNOS =
|
|
|
|
|
cifs_kcalloc(2, GFP_KERNEL);
|
|
|
|
|
}
|
|
|
|
|
} else { /* ASCII */
|
|
|
|
|
len = strnlen(bcc_ptr, 1024);
|
|
|
|
|
if (((long) bcc_ptr + len) - (long)
|
|
|
|
|
pByteArea(smb_buffer_response)
|
|
|
|
|
<= BCC(smb_buffer_response)) {
|
|
|
|
|
ses->serverOS = cifs_kcalloc(len + 1,GFP_KERNEL);
|
|
|
|
|
strncpy(ses->serverOS,bcc_ptr, len);
|
|
|
|
|
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
bcc_ptr[0] = 0; /* null terminate the string */
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
|
|
|
|
|
len = strnlen(bcc_ptr, 1024);
|
|
|
|
|
ses->serverNOS = cifs_kcalloc(len + 1,GFP_KERNEL);
|
|
|
|
|
strncpy(ses->serverNOS, bcc_ptr, len);
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
bcc_ptr[0] = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
|
|
|
|
|
len = strnlen(bcc_ptr, 1024);
|
|
|
|
|
ses->serverDomain = cifs_kcalloc(len + 1,GFP_KERNEL);
|
|
|
|
|
strncpy(ses->serverDomain, bcc_ptr, len);
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
bcc_ptr[0] = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
} else
|
|
|
|
|
cFYI(1,
|
|
|
|
|
("Variable field of length %d extends beyond end of smb ",
|
|
|
|
|
len));
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
cERROR(1,
|
|
|
|
|
(" Security Blob Length extends beyond end of SMB"));
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
cERROR(1,
|
|
|
|
|
(" Invalid Word count %d: ",
|
|
|
|
|
smb_buffer_response->WordCount));
|
|
|
|
|
rc = -EIO;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (smb_buffer)
|
|
|
|
|
cifs_buf_release(smb_buffer);
|
|
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
CIFSSpnegoSessSetup(unsigned int xid, struct cifsSesInfo *ses,
|
|
|
|
|
char *SecurityBlob,int SecurityBlobLength,
|
|
|
|
|
const struct nls_table *nls_codepage)
|
|
|
|
|
{
|
|
|
|
|
struct smb_hdr *smb_buffer;
|
|
|
|
|
struct smb_hdr *smb_buffer_response;
|
|
|
|
|
SESSION_SETUP_ANDX *pSMB;
|
|
|
|
|
SESSION_SETUP_ANDX *pSMBr;
|
|
|
|
|
char *bcc_ptr;
|
|
|
|
|
char *user;
|
|
|
|
|
char *domain;
|
|
|
|
|
int rc = 0;
|
|
|
|
|
int remaining_words = 0;
|
|
|
|
|
int bytes_returned = 0;
|
|
|
|
|
int len;
|
|
|
|
|
__u32 capabilities;
|
|
|
|
|
__u16 count;
|
|
|
|
|
|
|
|
|
|
cFYI(1, ("In spnego sesssetup "));
|
|
|
|
|
if(ses == NULL)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
user = ses->userName;
|
|
|
|
|
domain = ses->domainName;
|
|
|
|
|
|
|
|
|
|
smb_buffer = cifs_buf_get();
|
|
|
|
|
if (smb_buffer == NULL) {
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
smb_buffer_response = smb_buffer;
|
|
|
|
|
pSMBr = pSMB = (SESSION_SETUP_ANDX *) smb_buffer;
|
|
|
|
|
|
|
|
|
|
/* send SMBsessionSetup here */
|
|
|
|
|
header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
|
|
|
|
|
NULL /* no tCon exists yet */ , 12 /* wct */ );
|
|
|
|
|
pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
|
|
|
|
|
pSMB->req.AndXCommand = 0xFF;
|
|
|
|
|
pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
|
|
|
|
|
pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
|
|
|
|
|
|
|
|
|
|
if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
|
|
|
|
|
|
|
|
|
|
capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
|
|
|
|
|
CAP_EXTENDED_SECURITY;
|
|
|
|
|
if (ses->capabilities & CAP_UNICODE) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_UNICODE;
|
|
|
|
|
capabilities |= CAP_UNICODE;
|
|
|
|
|
}
|
|
|
|
|
if (ses->capabilities & CAP_STATUS32) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
|
|
|
|
|
capabilities |= CAP_STATUS32;
|
|
|
|
|
}
|
|
|
|
|
if (ses->capabilities & CAP_DFS) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_DFS;
|
|
|
|
|
capabilities |= CAP_DFS;
|
|
|
|
|
}
|
|
|
|
|
pSMB->req.Capabilities = cpu_to_le32(capabilities);
|
|
|
|
|
|
|
|
|
|
pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength);
|
|
|
|
|
bcc_ptr = pByteArea(smb_buffer);
|
|
|
|
|
memcpy(bcc_ptr, SecurityBlob, SecurityBlobLength);
|
|
|
|
|
bcc_ptr += SecurityBlobLength;
|
|
|
|
|
|
|
|
|
|
if (ses->capabilities & CAP_UNICODE) {
|
|
|
|
|
if ((long) bcc_ptr % 2) { /* must be word aligned for Unicode strings */
|
|
|
|
|
*bcc_ptr = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
}
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, user, 100, nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned; /* convert num of 16 bit words to bytes */
|
|
|
|
|
bcc_ptr += 2; /* trailing null */
|
|
|
|
|
if (domain == NULL)
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr,
|
|
|
|
|
"CIFS_LINUX_DOM", 32, nls_codepage);
|
|
|
|
|
else
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, domain, 64,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
bcc_ptr += 2;
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, "Linux version ",
|
|
|
|
|
32, nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, system_utsname.release, 32,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
bcc_ptr += 2;
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, CIFS_NETWORK_OPSYS,
|
|
|
|
|
64, nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
bcc_ptr += 2;
|
|
|
|
|
} else {
|
|
|
|
|
strncpy(bcc_ptr, user, 200);
|
|
|
|
|
bcc_ptr += strnlen(user, 200);
|
|
|
|
|
*bcc_ptr = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
if (domain == NULL) {
|
|
|
|
|
strcpy(bcc_ptr, "CIFS_LINUX_DOM");
|
|
|
|
|
bcc_ptr += strlen("CIFS_LINUX_DOM") + 1;
|
|
|
|
|
} else {
|
|
|
|
|
strncpy(bcc_ptr, domain, 64);
|
|
|
|
|
bcc_ptr += strnlen(domain, 64);
|
|
|
|
|
*bcc_ptr = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
}
|
|
|
|
|
strcpy(bcc_ptr, "Linux version ");
|
|
|
|
|
bcc_ptr += strlen("Linux version ");
|
|
|
|
|
strcpy(bcc_ptr, system_utsname.release);
|
|
|
|
|
bcc_ptr += strlen(system_utsname.release) + 1;
|
|
|
|
|
strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
|
|
|
|
|
bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
|
|
|
|
|
}
|
|
|
|
|
count = (long) bcc_ptr - (long) pByteArea(smb_buffer);
|
|
|
|
|
smb_buffer->smb_buf_length += count;
|
|
|
|
|
pSMB->req.ByteCount = cpu_to_le16(count);
|
|
|
|
|
|
|
|
|
|
rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
|
|
|
|
|
&bytes_returned, 1);
|
|
|
|
|
if (rc) {
|
|
|
|
|
/* rc = map_smb_to_linux_error(smb_buffer_response); *//* done in SendReceive now */
|
|
|
|
|
} else if ((smb_buffer_response->WordCount == 3)
|
|
|
|
|
|| (smb_buffer_response->WordCount == 4)) {
|
|
|
|
|
__u16 action = le16_to_cpu(pSMBr->resp.Action);
|
|
|
|
|
__u16 blob_len =
|
|
|
|
|
le16_to_cpu(pSMBr->resp.SecurityBlobLength);
|
|
|
|
|
if (action & GUEST_LOGIN)
|
|
|
|
|
cFYI(1, (" Guest login")); /* BB do we want to set anything in SesInfo struct ? */
|
|
|
|
|
if (ses) {
|
|
|
|
|
ses->Suid = smb_buffer_response->Uid; /* UID left in wire format (le) */
|
|
|
|
|
cFYI(1, ("UID = %d ", ses->Suid));
|
|
|
|
|
bcc_ptr = pByteArea(smb_buffer_response); /* response can have either 3 or 4 word count - Samba sends 3 */
|
|
|
|
|
|
|
|
|
|
/* BB Fix below to make endian neutral !! */
|
|
|
|
|
|
|
|
|
|
if ((pSMBr->resp.hdr.WordCount == 3)
|
|
|
|
|
|| ((pSMBr->resp.hdr.WordCount == 4)
|
|
|
|
|
&& (blob_len <
|
|
|
|
|
pSMBr->resp.ByteCount))) {
|
|
|
|
|
if (pSMBr->resp.hdr.WordCount == 4) {
|
|
|
|
|
bcc_ptr +=
|
|
|
|
|
blob_len;
|
|
|
|
|
cFYI(1,
|
|
|
|
|
("Security Blob Length %d ",
|
|
|
|
|
blob_len));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (smb_buffer->Flags2 & SMBFLG2_UNICODE) {
|
|
|
|
|
if ((long) (bcc_ptr) % 2) {
|
|
|
|
|
remaining_words =
|
|
|
|
|
(BCC(smb_buffer_response)
|
|
|
|
|
- 1) / 2;
|
|
|
|
|
bcc_ptr++; /* Unicode strings must be word aligned */
|
|
|
|
|
} else {
|
|
|
|
|
remaining_words =
|
|
|
|
|
BCC
|
|
|
|
|
(smb_buffer_response) / 2;
|
|
|
|
|
}
|
|
|
|
|
len =
|
|
|
|
|
UniStrnlen((wchar_t *) bcc_ptr,
|
|
|
|
|
remaining_words - 1);
|
|
|
|
|
/* We look for obvious messed up bcc or strings in response so we do not go off
|
|
|
|
|
the end since (at least) WIN2K and Windows XP have a major bug in not null
|
|
|
|
|
terminating last Unicode string in response */
|
|
|
|
|
ses->serverOS =
|
|
|
|
|
cifs_kcalloc(2 * (len + 1), GFP_KERNEL);
|
|
|
|
|
cifs_strfromUCS_le(ses->serverOS,
|
|
|
|
|
(wchar_t *)
|
|
|
|
|
bcc_ptr, len,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * (len + 1);
|
|
|
|
|
remaining_words -= len + 1;
|
|
|
|
|
ses->serverOS[2 * len] = 0;
|
|
|
|
|
ses->serverOS[1 + (2 * len)] = 0;
|
|
|
|
|
if (remaining_words > 0) {
|
|
|
|
|
len = UniStrnlen((wchar_t *)bcc_ptr,
|
|
|
|
|
remaining_words
|
|
|
|
|
- 1);
|
|
|
|
|
ses->serverNOS =
|
|
|
|
|
cifs_kcalloc(2 * (len + 1),
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
cifs_strfromUCS_le(ses->serverNOS,
|
|
|
|
|
(wchar_t *)bcc_ptr,
|
|
|
|
|
len,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * (len + 1);
|
|
|
|
|
ses->serverNOS[2 * len] = 0;
|
|
|
|
|
ses->serverNOS[1 + (2 * len)] = 0;
|
|
|
|
|
remaining_words -= len + 1;
|
|
|
|
|
if (remaining_words > 0) {
|
|
|
|
|
len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words);
|
|
|
|
|
/* last string is not always null terminated (for e.g. for Windows XP & 2000) */
|
|
|
|
|
ses->serverDomain = cifs_kcalloc(2*(len+1),GFP_KERNEL);
|
|
|
|
|
cifs_strfromUCS_le(ses->serverDomain,
|
|
|
|
|
(wchar_t *)bcc_ptr,
|
|
|
|
|
len,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
bcc_ptr += 2*(len+1);
|
|
|
|
|
ses->serverDomain[2*len] = 0;
|
|
|
|
|
ses->serverDomain[1+(2*len)] = 0;
|
|
|
|
|
} /* else no more room so create dummy domain string */
|
|
|
|
|
else
|
|
|
|
|
ses->serverDomain =
|
|
|
|
|
cifs_kcalloc(2,GFP_KERNEL);
|
|
|
|
|
} else { /* no room so create dummy domain and NOS string */
|
|
|
|
|
ses->serverDomain = cifs_kcalloc(2, GFP_KERNEL);
|
|
|
|
|
ses->serverNOS = cifs_kcalloc(2, GFP_KERNEL);
|
|
|
|
|
}
|
|
|
|
|
} else { /* ASCII */
|
|
|
|
|
|
|
|
|
|
len = strnlen(bcc_ptr, 1024);
|
|
|
|
|
if (((long) bcc_ptr + len) - (long)
|
|
|
|
|
pByteArea(smb_buffer_response)
|
|
|
|
|
<= BCC(smb_buffer_response)) {
|
|
|
|
|
ses->serverOS = cifs_kcalloc(len + 1, GFP_KERNEL);
|
|
|
|
|
strncpy(ses->serverOS, bcc_ptr, len);
|
|
|
|
|
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
bcc_ptr[0] = 0; /* null terminate the string */
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
|
|
|
|
|
len = strnlen(bcc_ptr, 1024);
|
|
|
|
|
ses->serverNOS = cifs_kcalloc(len + 1,GFP_KERNEL);
|
|
|
|
|
strncpy(ses->serverNOS, bcc_ptr, len);
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
bcc_ptr[0] = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
|
|
|
|
|
len = strnlen(bcc_ptr, 1024);
|
|
|
|
|
ses->serverDomain = cifs_kcalloc(len + 1, GFP_KERNEL);
|
|
|
|
|
strncpy(ses->serverDomain, bcc_ptr, len);
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
bcc_ptr[0] = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
} else
|
|
|
|
|
cFYI(1,
|
|
|
|
|
("Variable field of length %d extends beyond end of smb ",
|
|
|
|
|
len));
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
cERROR(1,
|
|
|
|
|
(" Security Blob Length extends beyond end of SMB"));
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
cERROR(1, ("No session structure passed in."));
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
cERROR(1,
|
|
|
|
|
(" Invalid Word count %d: ",
|
|
|
|
|
smb_buffer_response->WordCount));
|
|
|
|
|
rc = -EIO;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (smb_buffer)
|
|
|
|
|
cifs_buf_release(smb_buffer);
|
|
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
|
|
|
|
|
struct cifsSesInfo *ses, int * pNTLMv2_flag,
|
|
|
|
|
const struct nls_table *nls_codepage)
|
|
|
|
|
{
|
|
|
|
|
struct smb_hdr *smb_buffer;
|
|
|
|
|
struct smb_hdr *smb_buffer_response;
|
|
|
|
|
SESSION_SETUP_ANDX *pSMB;
|
|
|
|
|
SESSION_SETUP_ANDX *pSMBr;
|
|
|
|
|
char *bcc_ptr;
|
|
|
|
|
char *domain;
|
|
|
|
|
int rc = 0;
|
|
|
|
|
int remaining_words = 0;
|
|
|
|
|
int bytes_returned = 0;
|
|
|
|
|
int len;
|
|
|
|
|
int SecurityBlobLength = sizeof (NEGOTIATE_MESSAGE);
|
|
|
|
|
PNEGOTIATE_MESSAGE SecurityBlob;
|
|
|
|
|
PCHALLENGE_MESSAGE SecurityBlob2;
|
|
|
|
|
__u32 negotiate_flags, capabilities;
|
|
|
|
|
__u16 count;
|
|
|
|
|
|
|
|
|
|
cFYI(1, ("In NTLMSSP sesssetup (negotiate) "));
|
|
|
|
|
if(ses == NULL)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
domain = ses->domainName;
|
|
|
|
|
*pNTLMv2_flag = FALSE;
|
|
|
|
|
smb_buffer = cifs_buf_get();
|
|
|
|
|
if (smb_buffer == NULL) {
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
smb_buffer_response = smb_buffer;
|
|
|
|
|
pSMB = (SESSION_SETUP_ANDX *) smb_buffer;
|
|
|
|
|
pSMBr = (SESSION_SETUP_ANDX *) smb_buffer_response;
|
|
|
|
|
|
|
|
|
|
/* send SMBsessionSetup here */
|
|
|
|
|
header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
|
|
|
|
|
NULL /* no tCon exists yet */ , 12 /* wct */ );
|
|
|
|
|
pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
|
|
|
|
|
pSMB->req.hdr.Flags |= (SMBFLG_CASELESS | SMBFLG_CANONICAL_PATH_FORMAT);
|
|
|
|
|
|
|
|
|
|
pSMB->req.AndXCommand = 0xFF;
|
|
|
|
|
pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
|
|
|
|
|
pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
|
|
|
|
|
|
|
|
|
|
if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
|
|
|
|
|
|
|
|
|
|
capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
|
|
|
|
|
CAP_EXTENDED_SECURITY;
|
|
|
|
|
if (ses->capabilities & CAP_UNICODE) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_UNICODE;
|
|
|
|
|
capabilities |= CAP_UNICODE;
|
|
|
|
|
}
|
|
|
|
|
if (ses->capabilities & CAP_STATUS32) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
|
|
|
|
|
capabilities |= CAP_STATUS32;
|
|
|
|
|
}
|
|
|
|
|
if (ses->capabilities & CAP_DFS) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_DFS;
|
|
|
|
|
capabilities |= CAP_DFS;
|
|
|
|
|
}
|
|
|
|
|
pSMB->req.Capabilities = cpu_to_le32(capabilities);
|
|
|
|
|
|
|
|
|
|
bcc_ptr = (char *) &pSMB->req.SecurityBlob;
|
|
|
|
|
SecurityBlob = (PNEGOTIATE_MESSAGE) bcc_ptr;
|
|
|
|
|
strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8);
|
|
|
|
|
SecurityBlob->MessageType = NtLmNegotiate;
|
|
|
|
|
negotiate_flags =
|
|
|
|
|
NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_NEGOTIATE_OEM |
|
|
|
|
|
NTLMSSP_REQUEST_TARGET | NTLMSSP_NEGOTIATE_NTLM | 0x80000000 |
|
|
|
|
|
/* NTLMSSP_NEGOTIATE_ALWAYS_SIGN | */ NTLMSSP_NEGOTIATE_128;
|
|
|
|
|
if(sign_CIFS_PDUs)
|
|
|
|
|
negotiate_flags |= NTLMSSP_NEGOTIATE_SIGN;
|
|
|
|
|
if(ntlmv2_support)
|
|
|
|
|
negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2;
|
|
|
|
|
/* setup pointers to domain name and workstation name */
|
|
|
|
|
bcc_ptr += SecurityBlobLength;
|
|
|
|
|
|
|
|
|
|
SecurityBlob->WorkstationName.Buffer = 0;
|
|
|
|
|
SecurityBlob->WorkstationName.Length = 0;
|
|
|
|
|
SecurityBlob->WorkstationName.MaximumLength = 0;
|
|
|
|
|
|
|
|
|
|
if (domain == NULL) {
|
|
|
|
|
SecurityBlob->DomainName.Buffer = 0;
|
|
|
|
|
SecurityBlob->DomainName.Length = 0;
|
|
|
|
|
SecurityBlob->DomainName.MaximumLength = 0;
|
|
|
|
|
} else {
|
|
|
|
|
__u16 len;
|
|
|
|
|
negotiate_flags |= NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED;
|
|
|
|
|
strncpy(bcc_ptr, domain, 63);
|
|
|
|
|
len = strnlen(domain, 64);
|
|
|
|
|
SecurityBlob->DomainName.MaximumLength =
|
|
|
|
|
cpu_to_le16(len);
|
|
|
|
|
SecurityBlob->DomainName.Buffer =
|
|
|
|
|
cpu_to_le32((long) &SecurityBlob->
|
|
|
|
|
DomainString -
|
|
|
|
|
(long) &SecurityBlob->Signature);
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
SecurityBlobLength += len;
|
|
|
|
|
SecurityBlob->DomainName.Length =
|
|
|
|
|
cpu_to_le16(len);
|
|
|
|
|
}
|
|
|
|
|
if (ses->capabilities & CAP_UNICODE) {
|
|
|
|
|
if ((long) bcc_ptr % 2) {
|
|
|
|
|
*bcc_ptr = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, "Linux version ",
|
|
|
|
|
32, nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, system_utsname.release, 32,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
bcc_ptr += 2; /* null terminate Linux version */
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, CIFS_NETWORK_OPSYS,
|
|
|
|
|
64, nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
*(bcc_ptr + 1) = 0;
|
|
|
|
|
*(bcc_ptr + 2) = 0;
|
|
|
|
|
bcc_ptr += 2; /* null terminate network opsys string */
|
|
|
|
|
*(bcc_ptr + 1) = 0;
|
|
|
|
|
*(bcc_ptr + 2) = 0;
|
|
|
|
|
bcc_ptr += 2; /* null domain */
|
|
|
|
|
} else { /* ASCII */
|
|
|
|
|
strcpy(bcc_ptr, "Linux version ");
|
|
|
|
|
bcc_ptr += strlen("Linux version ");
|
|
|
|
|
strcpy(bcc_ptr, system_utsname.release);
|
|
|
|
|
bcc_ptr += strlen(system_utsname.release) + 1;
|
|
|
|
|
strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
|
|
|
|
|
bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
|
|
|
|
|
bcc_ptr++; /* empty domain field */
|
|
|
|
|
*bcc_ptr = 0;
|
|
|
|
|
}
|
|
|
|
|
SecurityBlob->NegotiateFlags = cpu_to_le32(negotiate_flags);
|
|
|
|
|
pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength);
|
|
|
|
|
count = (long) bcc_ptr - (long) pByteArea(smb_buffer);
|
|
|
|
|
smb_buffer->smb_buf_length += count;
|
|
|
|
|
pSMB->req.ByteCount = cpu_to_le16(count);
|
|
|
|
|
|
|
|
|
|
rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
|
|
|
|
|
&bytes_returned, 1);
|
|
|
|
|
|
|
|
|
|
if (smb_buffer_response->Status.CifsError ==
|
|
|
|
|
cpu_to_le32(NT_STATUS_MORE_PROCESSING_REQUIRED))
|
|
|
|
|
rc = 0;
|
|
|
|
|
|
|
|
|
|
if (rc) {
|
|
|
|
|
/* rc = map_smb_to_linux_error(smb_buffer_response); *//* done in SendReceive now */
|
|
|
|
|
} else if ((smb_buffer_response->WordCount == 3)
|
|
|
|
|
|| (smb_buffer_response->WordCount == 4)) {
|
|
|
|
|
__u16 action = le16_to_cpu(pSMBr->resp.Action);
|
|
|
|
|
__u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength);
|
|
|
|
|
|
|
|
|
|
if (action & GUEST_LOGIN)
|
|
|
|
|
cFYI(1, (" Guest login"));
|
|
|
|
|
/* Do we want to set anything in SesInfo struct when guest login? */
|
|
|
|
|
|
|
|
|
|
bcc_ptr = pByteArea(smb_buffer_response);
|
|
|
|
|
/* response can have either 3 or 4 word count - Samba sends 3 */
|
|
|
|
|
|
|
|
|
|
SecurityBlob2 = (PCHALLENGE_MESSAGE) bcc_ptr;
|
|
|
|
|
if (SecurityBlob2->MessageType != NtLmChallenge) {
|
|
|
|
|
cFYI(1,
|
|
|
|
|
("Unexpected NTLMSSP message type received %d",
|
|
|
|
|
SecurityBlob2->MessageType));
|
|
|
|
|
} else if (ses) {
|
|
|
|
|
ses->Suid = smb_buffer_response->Uid; /* UID left in le format */
|
|
|
|
|
cFYI(1, ("UID = %d ", ses->Suid));
|
|
|
|
|
if ((pSMBr->resp.hdr.WordCount == 3)
|
|
|
|
|
|| ((pSMBr->resp.hdr.WordCount == 4)
|
|
|
|
|
&& (blob_len <
|
|
|
|
|
pSMBr->resp.ByteCount))) {
|
|
|
|
|
|
|
|
|
|
if (pSMBr->resp.hdr.WordCount == 4) {
|
|
|
|
|
bcc_ptr += blob_len;
|
|
|
|
|
cFYI(1,
|
|
|
|
|
("Security Blob Length %d ",
|
|
|
|
|
blob_len));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
cFYI(1, ("NTLMSSP Challenge rcvd "));
|
|
|
|
|
|
|
|
|
|
memcpy(ses->server->cryptKey,
|
|
|
|
|
SecurityBlob2->Challenge,
|
|
|
|
|
CIFS_CRYPTO_KEY_SIZE);
|
|
|
|
|
if(SecurityBlob2->NegotiateFlags & cpu_to_le32(NTLMSSP_NEGOTIATE_NTLMV2))
|
|
|
|
|
*pNTLMv2_flag = TRUE;
|
|
|
|
|
|
|
|
|
|
if((SecurityBlob2->NegotiateFlags &
|
|
|
|
|
cpu_to_le32(NTLMSSP_NEGOTIATE_ALWAYS_SIGN))
|
|
|
|
|
|| (sign_CIFS_PDUs > 1))
|
|
|
|
|
ses->server->secMode |=
|
|
|
|
|
SECMODE_SIGN_REQUIRED;
|
|
|
|
|
if ((SecurityBlob2->NegotiateFlags &
|
|
|
|
|
cpu_to_le32(NTLMSSP_NEGOTIATE_SIGN)) && (sign_CIFS_PDUs))
|
|
|
|
|
ses->server->secMode |=
|
|
|
|
|
SECMODE_SIGN_ENABLED;
|
|
|
|
|
|
|
|
|
|
if (smb_buffer->Flags2 & SMBFLG2_UNICODE) {
|
|
|
|
|
if ((long) (bcc_ptr) % 2) {
|
|
|
|
|
remaining_words =
|
|
|
|
|
(BCC(smb_buffer_response)
|
|
|
|
|
- 1) / 2;
|
|
|
|
|
bcc_ptr++; /* Unicode strings must be word aligned */
|
|
|
|
|
} else {
|
|
|
|
|
remaining_words =
|
|
|
|
|
BCC
|
|
|
|
|
(smb_buffer_response) / 2;
|
|
|
|
|
}
|
|
|
|
|
len =
|
|
|
|
|
UniStrnlen((wchar_t *) bcc_ptr,
|
|
|
|
|
remaining_words - 1);
|
|
|
|
|
/* We look for obvious messed up bcc or strings in response so we do not go off
|
|
|
|
|
the end since (at least) WIN2K and Windows XP have a major bug in not null
|
|
|
|
|
terminating last Unicode string in response */
|
|
|
|
|
ses->serverOS =
|
|
|
|
|
cifs_kcalloc(2 * (len + 1), GFP_KERNEL);
|
|
|
|
|
cifs_strfromUCS_le(ses->serverOS,
|
|
|
|
|
(wchar_t *)
|
|
|
|
|
bcc_ptr, len,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * (len + 1);
|
|
|
|
|
remaining_words -= len + 1;
|
|
|
|
|
ses->serverOS[2 * len] = 0;
|
|
|
|
|
ses->serverOS[1 + (2 * len)] = 0;
|
|
|
|
|
if (remaining_words > 0) {
|
|
|
|
|
len = UniStrnlen((wchar_t *)
|
|
|
|
|
bcc_ptr,
|
|
|
|
|
remaining_words
|
|
|
|
|
- 1);
|
|
|
|
|
ses->serverNOS =
|
|
|
|
|
cifs_kcalloc(2 * (len + 1),
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
cifs_strfromUCS_le(ses->
|
|
|
|
|
serverNOS,
|
|
|
|
|
(wchar_t *)
|
|
|
|
|
bcc_ptr,
|
|
|
|
|
len,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * (len + 1);
|
|
|
|
|
ses->serverNOS[2 * len] = 0;
|
|
|
|
|
ses->serverNOS[1 +
|
|
|
|
|
(2 * len)] = 0;
|
|
|
|
|
remaining_words -= len + 1;
|
|
|
|
|
if (remaining_words > 0) {
|
|
|
|
|
len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words);
|
|
|
|
|
/* last string is not always null terminated (for e.g. for Windows XP & 2000) */
|
|
|
|
|
ses->serverDomain =
|
|
|
|
|
cifs_kcalloc(2 *
|
|
|
|
|
(len +
|
|
|
|
|
1),
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
cifs_strfromUCS_le
|
|
|
|
|
(ses->
|
|
|
|
|
serverDomain,
|
|
|
|
|
(wchar_t *)
|
|
|
|
|
bcc_ptr, len,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
bcc_ptr +=
|
|
|
|
|
2 * (len + 1);
|
|
|
|
|
ses->
|
|
|
|
|
serverDomain[2
|
|
|
|
|
* len]
|
|
|
|
|
= 0;
|
|
|
|
|
ses->
|
|
|
|
|
serverDomain[1
|
|
|
|
|
+
|
|
|
|
|
(2
|
|
|
|
|
*
|
|
|
|
|
len)]
|
|
|
|
|
= 0;
|
|
|
|
|
} /* else no more room so create dummy domain string */
|
|
|
|
|
else
|
|
|
|
|
ses->serverDomain =
|
|
|
|
|
cifs_kcalloc(2,
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
} else { /* no room so create dummy domain and NOS string */
|
|
|
|
|
ses->serverDomain =
|
|
|
|
|
cifs_kcalloc(2, GFP_KERNEL);
|
|
|
|
|
ses->serverNOS =
|
|
|
|
|
cifs_kcalloc(2, GFP_KERNEL);
|
|
|
|
|
}
|
|
|
|
|
} else { /* ASCII */
|
|
|
|
|
len = strnlen(bcc_ptr, 1024);
|
|
|
|
|
if (((long) bcc_ptr + len) - (long)
|
|
|
|
|
pByteArea(smb_buffer_response)
|
|
|
|
|
<= BCC(smb_buffer_response)) {
|
|
|
|
|
ses->serverOS =
|
|
|
|
|
cifs_kcalloc(len + 1,
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
strncpy(ses->serverOS,
|
|
|
|
|
bcc_ptr, len);
|
|
|
|
|
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
bcc_ptr[0] = 0; /* null terminate string */
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
|
|
|
|
|
len = strnlen(bcc_ptr, 1024);
|
|
|
|
|
ses->serverNOS =
|
|
|
|
|
cifs_kcalloc(len + 1,
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
strncpy(ses->serverNOS, bcc_ptr, len);
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
bcc_ptr[0] = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
|
|
|
|
|
len = strnlen(bcc_ptr, 1024);
|
|
|
|
|
ses->serverDomain =
|
|
|
|
|
cifs_kcalloc(len + 1,
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
strncpy(ses->serverDomain, bcc_ptr, len);
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
bcc_ptr[0] = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
} else
|
|
|
|
|
cFYI(1,
|
|
|
|
|
("Variable field of length %d extends beyond end of smb ",
|
|
|
|
|
len));
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
cERROR(1,
|
|
|
|
|
(" Security Blob Length extends beyond end of SMB"));
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
cERROR(1, ("No session structure passed in."));
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
cERROR(1,
|
|
|
|
|
(" Invalid Word count %d: ",
|
|
|
|
|
smb_buffer_response->WordCount));
|
|
|
|
|
rc = -EIO;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (smb_buffer)
|
|
|
|
|
cifs_buf_release(smb_buffer);
|
|
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
static int
|
|
|
|
|
CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
|
|
|
|
|
char *ntlm_session_key, int ntlmv2_flag,
|
|
|
|
|
const struct nls_table *nls_codepage)
|
|
|
|
|
{
|
|
|
|
|
struct smb_hdr *smb_buffer;
|
|
|
|
|
struct smb_hdr *smb_buffer_response;
|
|
|
|
|
SESSION_SETUP_ANDX *pSMB;
|
|
|
|
|
SESSION_SETUP_ANDX *pSMBr;
|
|
|
|
|
char *bcc_ptr;
|
|
|
|
|
char *user;
|
|
|
|
|
char *domain;
|
|
|
|
|
int rc = 0;
|
|
|
|
|
int remaining_words = 0;
|
|
|
|
|
int bytes_returned = 0;
|
|
|
|
|
int len;
|
|
|
|
|
int SecurityBlobLength = sizeof (AUTHENTICATE_MESSAGE);
|
|
|
|
|
PAUTHENTICATE_MESSAGE SecurityBlob;
|
|
|
|
|
__u32 negotiate_flags, capabilities;
|
|
|
|
|
__u16 count;
|
|
|
|
|
|
|
|
|
|
cFYI(1, ("In NTLMSSPSessSetup (Authenticate)"));
|
|
|
|
|
if(ses == NULL)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
user = ses->userName;
|
|
|
|
|
domain = ses->domainName;
|
|
|
|
|
smb_buffer = cifs_buf_get();
|
|
|
|
|
if (smb_buffer == NULL) {
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
smb_buffer_response = smb_buffer;
|
|
|
|
|
pSMB = (SESSION_SETUP_ANDX *) smb_buffer;
|
|
|
|
|
pSMBr = (SESSION_SETUP_ANDX *) smb_buffer_response;
|
|
|
|
|
|
|
|
|
|
/* send SMBsessionSetup here */
|
|
|
|
|
header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
|
|
|
|
|
NULL /* no tCon exists yet */ , 12 /* wct */ );
|
|
|
|
|
pSMB->req.hdr.Flags |= (SMBFLG_CASELESS | SMBFLG_CANONICAL_PATH_FORMAT);
|
|
|
|
|
pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
|
|
|
|
|
pSMB->req.AndXCommand = 0xFF;
|
|
|
|
|
pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
|
|
|
|
|
pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
|
|
|
|
|
|
|
|
|
|
pSMB->req.hdr.Uid = ses->Suid;
|
|
|
|
|
|
|
|
|
|
if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
|
|
|
|
|
|
|
|
|
|
capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
|
|
|
|
|
CAP_EXTENDED_SECURITY;
|
|
|
|
|
if (ses->capabilities & CAP_UNICODE) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_UNICODE;
|
|
|
|
|
capabilities |= CAP_UNICODE;
|
|
|
|
|
}
|
|
|
|
|
if (ses->capabilities & CAP_STATUS32) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
|
|
|
|
|
capabilities |= CAP_STATUS32;
|
|
|
|
|
}
|
|
|
|
|
if (ses->capabilities & CAP_DFS) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_DFS;
|
|
|
|
|
capabilities |= CAP_DFS;
|
|
|
|
|
}
|
|
|
|
|
pSMB->req.Capabilities = cpu_to_le32(capabilities);
|
|
|
|
|
|
|
|
|
|
bcc_ptr = (char *) &pSMB->req.SecurityBlob;
|
|
|
|
|
SecurityBlob = (PAUTHENTICATE_MESSAGE) bcc_ptr;
|
|
|
|
|
strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8);
|
|
|
|
|
SecurityBlob->MessageType = NtLmAuthenticate;
|
|
|
|
|
bcc_ptr += SecurityBlobLength;
|
|
|
|
|
negotiate_flags =
|
|
|
|
|
NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_REQUEST_TARGET |
|
|
|
|
|
NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_TARGET_INFO |
|
|
|
|
|
0x80000000 | NTLMSSP_NEGOTIATE_128;
|
|
|
|
|
if(sign_CIFS_PDUs)
|
|
|
|
|
negotiate_flags |= /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN |*/ NTLMSSP_NEGOTIATE_SIGN;
|
|
|
|
|
if(ntlmv2_flag)
|
|
|
|
|
negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2;
|
|
|
|
|
|
|
|
|
|
/* setup pointers to domain name and workstation name */
|
|
|
|
|
|
|
|
|
|
SecurityBlob->WorkstationName.Buffer = 0;
|
|
|
|
|
SecurityBlob->WorkstationName.Length = 0;
|
|
|
|
|
SecurityBlob->WorkstationName.MaximumLength = 0;
|
|
|
|
|
SecurityBlob->SessionKey.Length = 0;
|
|
|
|
|
SecurityBlob->SessionKey.MaximumLength = 0;
|
|
|
|
|
SecurityBlob->SessionKey.Buffer = 0;
|
|
|
|
|
|
|
|
|
|
SecurityBlob->LmChallengeResponse.Length = 0;
|
|
|
|
|
SecurityBlob->LmChallengeResponse.MaximumLength = 0;
|
|
|
|
|
SecurityBlob->LmChallengeResponse.Buffer = 0;
|
|
|
|
|
|
|
|
|
|
SecurityBlob->NtChallengeResponse.Length =
|
|
|
|
|
cpu_to_le16(CIFS_SESSION_KEY_SIZE);
|
|
|
|
|
SecurityBlob->NtChallengeResponse.MaximumLength =
|
|
|
|
|
cpu_to_le16(CIFS_SESSION_KEY_SIZE);
|
|
|
|
|
memcpy(bcc_ptr, ntlm_session_key, CIFS_SESSION_KEY_SIZE);
|
|
|
|
|
SecurityBlob->NtChallengeResponse.Buffer =
|
|
|
|
|
cpu_to_le32(SecurityBlobLength);
|
|
|
|
|
SecurityBlobLength += CIFS_SESSION_KEY_SIZE;
|
|
|
|
|
bcc_ptr += CIFS_SESSION_KEY_SIZE;
|
|
|
|
|
|
|
|
|
|
if (ses->capabilities & CAP_UNICODE) {
|
|
|
|
|
if (domain == NULL) {
|
|
|
|
|
SecurityBlob->DomainName.Buffer = 0;
|
|
|
|
|
SecurityBlob->DomainName.Length = 0;
|
|
|
|
|
SecurityBlob->DomainName.MaximumLength = 0;
|
|
|
|
|
} else {
|
|
|
|
|
__u16 len =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, domain, 64,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
len *= 2;
|
|
|
|
|
SecurityBlob->DomainName.MaximumLength =
|
|
|
|
|
cpu_to_le16(len);
|
|
|
|
|
SecurityBlob->DomainName.Buffer =
|
|
|
|
|
cpu_to_le32(SecurityBlobLength);
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
SecurityBlobLength += len;
|
|
|
|
|
SecurityBlob->DomainName.Length =
|
|
|
|
|
cpu_to_le16(len);
|
|
|
|
|
}
|
|
|
|
|
if (user == NULL) {
|
|
|
|
|
SecurityBlob->UserName.Buffer = 0;
|
|
|
|
|
SecurityBlob->UserName.Length = 0;
|
|
|
|
|
SecurityBlob->UserName.MaximumLength = 0;
|
|
|
|
|
} else {
|
|
|
|
|
__u16 len =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, user, 64,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
len *= 2;
|
|
|
|
|
SecurityBlob->UserName.MaximumLength =
|
|
|
|
|
cpu_to_le16(len);
|
|
|
|
|
SecurityBlob->UserName.Buffer =
|
|
|
|
|
cpu_to_le32(SecurityBlobLength);
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
SecurityBlobLength += len;
|
|
|
|
|
SecurityBlob->UserName.Length =
|
|
|
|
|
cpu_to_le16(len);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* SecurityBlob->WorkstationName.Length = cifs_strtoUCS((wchar_t *) bcc_ptr, "AMACHINE",64, nls_codepage);
|
|
|
|
|
SecurityBlob->WorkstationName.Length *= 2;
|
|
|
|
|
SecurityBlob->WorkstationName.MaximumLength = cpu_to_le16(SecurityBlob->WorkstationName.Length);
|
|
|
|
|
SecurityBlob->WorkstationName.Buffer = cpu_to_le32(SecurityBlobLength);
|
|
|
|
|
bcc_ptr += SecurityBlob->WorkstationName.Length;
|
|
|
|
|
SecurityBlobLength += SecurityBlob->WorkstationName.Length;
|
|
|
|
|
SecurityBlob->WorkstationName.Length = cpu_to_le16(SecurityBlob->WorkstationName.Length); */
|
|
|
|
|
|
|
|
|
|
if ((long) bcc_ptr % 2) {
|
|
|
|
|
*bcc_ptr = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
}
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, "Linux version ",
|
|
|
|
|
32, nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, system_utsname.release, 32,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
bcc_ptr += 2; /* null term version string */
|
|
|
|
|
bytes_returned =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, CIFS_NETWORK_OPSYS,
|
|
|
|
|
64, nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * bytes_returned;
|
|
|
|
|
*(bcc_ptr + 1) = 0;
|
|
|
|
|
*(bcc_ptr + 2) = 0;
|
|
|
|
|
bcc_ptr += 2; /* null terminate network opsys string */
|
|
|
|
|
*(bcc_ptr + 1) = 0;
|
|
|
|
|
*(bcc_ptr + 2) = 0;
|
|
|
|
|
bcc_ptr += 2; /* null domain */
|
|
|
|
|
} else { /* ASCII */
|
|
|
|
|
if (domain == NULL) {
|
|
|
|
|
SecurityBlob->DomainName.Buffer = 0;
|
|
|
|
|
SecurityBlob->DomainName.Length = 0;
|
|
|
|
|
SecurityBlob->DomainName.MaximumLength = 0;
|
|
|
|
|
} else {
|
|
|
|
|
__u16 len;
|
|
|
|
|
negotiate_flags |= NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED;
|
|
|
|
|
strncpy(bcc_ptr, domain, 63);
|
|
|
|
|
len = strnlen(domain, 64);
|
|
|
|
|
SecurityBlob->DomainName.MaximumLength =
|
|
|
|
|
cpu_to_le16(len);
|
|
|
|
|
SecurityBlob->DomainName.Buffer =
|
|
|
|
|
cpu_to_le32(SecurityBlobLength);
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
SecurityBlobLength += len;
|
|
|
|
|
SecurityBlob->DomainName.Length = cpu_to_le16(len);
|
|
|
|
|
}
|
|
|
|
|
if (user == NULL) {
|
|
|
|
|
SecurityBlob->UserName.Buffer = 0;
|
|
|
|
|
SecurityBlob->UserName.Length = 0;
|
|
|
|
|
SecurityBlob->UserName.MaximumLength = 0;
|
|
|
|
|
} else {
|
|
|
|
|
__u16 len;
|
|
|
|
|
strncpy(bcc_ptr, user, 63);
|
|
|
|
|
len = strnlen(user, 64);
|
|
|
|
|
SecurityBlob->UserName.MaximumLength =
|
|
|
|
|
cpu_to_le16(len);
|
|
|
|
|
SecurityBlob->UserName.Buffer =
|
|
|
|
|
cpu_to_le32(SecurityBlobLength);
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
SecurityBlobLength += len;
|
|
|
|
|
SecurityBlob->UserName.Length = cpu_to_le16(len);
|
|
|
|
|
}
|
|
|
|
|
/* BB fill in our workstation name if known BB */
|
|
|
|
|
|
|
|
|
|
strcpy(bcc_ptr, "Linux version ");
|
|
|
|
|
bcc_ptr += strlen("Linux version ");
|
|
|
|
|
strcpy(bcc_ptr, system_utsname.release);
|
|
|
|
|
bcc_ptr += strlen(system_utsname.release) + 1;
|
|
|
|
|
strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
|
|
|
|
|
bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
|
|
|
|
|
bcc_ptr++; /* null domain */
|
|
|
|
|
*bcc_ptr = 0;
|
|
|
|
|
}
|
|
|
|
|
SecurityBlob->NegotiateFlags = cpu_to_le32(negotiate_flags);
|
|
|
|
|
pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength);
|
|
|
|
|
count = (long) bcc_ptr - (long) pByteArea(smb_buffer);
|
|
|
|
|
smb_buffer->smb_buf_length += count;
|
|
|
|
|
pSMB->req.ByteCount = cpu_to_le16(count);
|
|
|
|
|
|
|
|
|
|
rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
|
|
|
|
|
&bytes_returned, 1);
|
|
|
|
|
if (rc) {
|
|
|
|
|
/* rc = map_smb_to_linux_error(smb_buffer_response); *//* done in SendReceive now */
|
|
|
|
|
} else if ((smb_buffer_response->WordCount == 3)
|
|
|
|
|
|| (smb_buffer_response->WordCount == 4)) {
|
|
|
|
|
__u16 action = le16_to_cpu(pSMBr->resp.Action);
|
|
|
|
|
__u16 blob_len =
|
|
|
|
|
le16_to_cpu(pSMBr->resp.SecurityBlobLength);
|
|
|
|
|
if (action & GUEST_LOGIN)
|
|
|
|
|
cFYI(1, (" Guest login")); /* BB do we want to set anything in SesInfo struct ? */
|
|
|
|
|
/* if(SecurityBlob2->MessageType != NtLm??){
|
|
|
|
|
cFYI("Unexpected message type on auth response is %d "));
|
|
|
|
|
} */
|
|
|
|
|
if (ses) {
|
|
|
|
|
cFYI(1,
|
|
|
|
|
("Does UID on challenge %d match auth response UID %d ",
|
|
|
|
|
ses->Suid, smb_buffer_response->Uid));
|
|
|
|
|
ses->Suid = smb_buffer_response->Uid; /* UID left in wire format */
|
|
|
|
|
bcc_ptr = pByteArea(smb_buffer_response);
|
|
|
|
|
/* response can have either 3 or 4 word count - Samba sends 3 */
|
|
|
|
|
if ((pSMBr->resp.hdr.WordCount == 3)
|
|
|
|
|
|| ((pSMBr->resp.hdr.WordCount == 4)
|
|
|
|
|
&& (blob_len <
|
|
|
|
|
pSMBr->resp.ByteCount))) {
|
|
|
|
|
if (pSMBr->resp.hdr.WordCount == 4) {
|
|
|
|
|
bcc_ptr +=
|
|
|
|
|
blob_len;
|
|
|
|
|
cFYI(1,
|
|
|
|
|
("Security Blob Length %d ",
|
|
|
|
|
blob_len));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
cFYI(1,
|
|
|
|
|
("NTLMSSP response to Authenticate "));
|
|
|
|
|
|
|
|
|
|
if (smb_buffer->Flags2 & SMBFLG2_UNICODE) {
|
|
|
|
|
if ((long) (bcc_ptr) % 2) {
|
|
|
|
|
remaining_words =
|
|
|
|
|
(BCC(smb_buffer_response)
|
|
|
|
|
- 1) / 2;
|
|
|
|
|
bcc_ptr++; /* Unicode strings must be word aligned */
|
|
|
|
|
} else {
|
|
|
|
|
remaining_words = BCC(smb_buffer_response) / 2;
|
|
|
|
|
}
|
|
|
|
|
len =
|
|
|
|
|
UniStrnlen((wchar_t *) bcc_ptr,remaining_words - 1);
|
|
|
|
|
/* We look for obvious messed up bcc or strings in response so we do not go off
|
|
|
|
|
the end since (at least) WIN2K and Windows XP have a major bug in not null
|
|
|
|
|
terminating last Unicode string in response */
|
|
|
|
|
ses->serverOS =
|
|
|
|
|
cifs_kcalloc(2 * (len + 1), GFP_KERNEL);
|
|
|
|
|
cifs_strfromUCS_le(ses->serverOS,
|
|
|
|
|
(wchar_t *)
|
|
|
|
|
bcc_ptr, len,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * (len + 1);
|
|
|
|
|
remaining_words -= len + 1;
|
|
|
|
|
ses->serverOS[2 * len] = 0;
|
|
|
|
|
ses->serverOS[1 + (2 * len)] = 0;
|
|
|
|
|
if (remaining_words > 0) {
|
|
|
|
|
len = UniStrnlen((wchar_t *)
|
|
|
|
|
bcc_ptr,
|
|
|
|
|
remaining_words
|
|
|
|
|
- 1);
|
|
|
|
|
ses->serverNOS =
|
|
|
|
|
cifs_kcalloc(2 * (len + 1),
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
cifs_strfromUCS_le(ses->
|
|
|
|
|
serverNOS,
|
|
|
|
|
(wchar_t *)
|
|
|
|
|
bcc_ptr,
|
|
|
|
|
len,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * (len + 1);
|
|
|
|
|
ses->serverNOS[2 * len] = 0;
|
|
|
|
|
ses->serverNOS[1+(2*len)] = 0;
|
|
|
|
|
remaining_words -= len + 1;
|
|
|
|
|
if (remaining_words > 0) {
|
|
|
|
|
len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words);
|
|
|
|
|
/* last string not always null terminated (e.g. for Windows XP & 2000) */
|
|
|
|
|
ses->serverDomain =
|
|
|
|
|
cifs_kcalloc(2 *
|
|
|
|
|
(len +
|
|
|
|
|
1),
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
cifs_strfromUCS_le
|
|
|
|
|
(ses->
|
|
|
|
|
serverDomain,
|
|
|
|
|
(wchar_t *)
|
|
|
|
|
bcc_ptr, len,
|
|
|
|
|
nls_codepage);
|
|
|
|
|
bcc_ptr +=
|
|
|
|
|
2 * (len + 1);
|
|
|
|
|
ses->
|
|
|
|
|
serverDomain[2
|
|
|
|
|
* len]
|
|
|
|
|
= 0;
|
|
|
|
|
ses->
|
|
|
|
|
serverDomain[1
|
|
|
|
|
+
|
|
|
|
|
(2
|
|
|
|
|
*
|
|
|
|
|
len)]
|
|
|
|
|
= 0;
|
|
|
|
|
} /* else no more room so create dummy domain string */
|
|
|
|
|
else
|
|
|
|
|
ses->serverDomain = cifs_kcalloc(2,GFP_KERNEL);
|
|
|
|
|
} else { /* no room so create dummy domain and NOS string */
|
|
|
|
|
ses->serverDomain = cifs_kcalloc(2, GFP_KERNEL);
|
|
|
|
|
ses->serverNOS = cifs_kcalloc(2, GFP_KERNEL);
|
|
|
|
|
}
|
|
|
|
|
} else { /* ASCII */
|
|
|
|
|
len = strnlen(bcc_ptr, 1024);
|
|
|
|
|
if (((long) bcc_ptr + len) -
|
|
|
|
|
(long) pByteArea(smb_buffer_response)
|
|
|
|
|
<= BCC(smb_buffer_response)) {
|
|
|
|
|
ses->serverOS = cifs_kcalloc(len + 1,GFP_KERNEL);
|
|
|
|
|
strncpy(ses->serverOS,bcc_ptr, len);
|
|
|
|
|
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
bcc_ptr[0] = 0; /* null terminate the string */
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
|
|
|
|
|
len = strnlen(bcc_ptr, 1024);
|
|
|
|
|
ses->serverNOS = cifs_kcalloc(len+1,GFP_KERNEL);
|
|
|
|
|
strncpy(ses->serverNOS, bcc_ptr, len);
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
bcc_ptr[0] = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
|
|
|
|
|
len = strnlen(bcc_ptr, 1024);
|
|
|
|
|
ses->serverDomain = cifs_kcalloc(len+1,GFP_KERNEL);
|
|
|
|
|
strncpy(ses->serverDomain, bcc_ptr, len);
|
|
|
|
|
bcc_ptr += len;
|
|
|
|
|
bcc_ptr[0] = 0;
|
|
|
|
|
bcc_ptr++;
|
|
|
|
|
} else
|
|
|
|
|
cFYI(1,
|
|
|
|
|
("Variable field of length %d extends beyond end of smb ",
|
|
|
|
|
len));
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
cERROR(1,
|
|
|
|
|
(" Security Blob Length extends beyond end of SMB"));
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
cERROR(1, ("No session structure passed in."));
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
cERROR(1,
|
|
|
|
|
(" Invalid Word count %d: ",
|
|
|
|
|
smb_buffer_response->WordCount));
|
|
|
|
|
rc = -EIO;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (smb_buffer)
|
|
|
|
|
cifs_buf_release(smb_buffer);
|
|
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
|
|
|
|
|
const char *tree, struct cifsTconInfo *tcon,
|
|
|
|
|
const struct nls_table *nls_codepage)
|
|
|
|
|
{
|
|
|
|
|
struct smb_hdr *smb_buffer;
|
|
|
|
|
struct smb_hdr *smb_buffer_response;
|
|
|
|
|
TCONX_REQ *pSMB;
|
|
|
|
|
TCONX_RSP *pSMBr;
|
|
|
|
|
unsigned char *bcc_ptr;
|
|
|
|
|
int rc = 0;
|
|
|
|
|
int length;
|
|
|
|
|
__u16 count;
|
|
|
|
|
|
|
|
|
|
if (ses == NULL)
|
|
|
|
|
return -EIO;
|
|
|
|
|
|
|
|
|
|
smb_buffer = cifs_buf_get();
|
|
|
|
|
if (smb_buffer == NULL) {
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
}
|
|
|
|
|
smb_buffer_response = smb_buffer;
|
|
|
|
|
|
|
|
|
|
header_assemble(smb_buffer, SMB_COM_TREE_CONNECT_ANDX,
|
|
|
|
|
NULL /*no tid */ , 4 /*wct */ );
|
|
|
|
|
smb_buffer->Uid = ses->Suid;
|
|
|
|
|
pSMB = (TCONX_REQ *) smb_buffer;
|
|
|
|
|
pSMBr = (TCONX_RSP *) smb_buffer_response;
|
|
|
|
|
|
|
|
|
|
pSMB->AndXCommand = 0xFF;
|
|
|
|
|
pSMB->Flags = cpu_to_le16(TCON_EXTENDED_SECINFO);
|
|
|
|
|
pSMB->PasswordLength = cpu_to_le16(1); /* minimum */
|
|
|
|
|
bcc_ptr = &pSMB->Password[0];
|
|
|
|
|
bcc_ptr++; /* skip password */
|
|
|
|
|
|
|
|
|
|
if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
|
|
|
|
|
|
|
|
|
|
if (ses->capabilities & CAP_STATUS32) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
|
|
|
|
|
}
|
|
|
|
|
if (ses->capabilities & CAP_DFS) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_DFS;
|
|
|
|
|
}
|
|
|
|
|
if (ses->capabilities & CAP_UNICODE) {
|
|
|
|
|
smb_buffer->Flags2 |= SMBFLG2_UNICODE;
|
|
|
|
|
length =
|
|
|
|
|
cifs_strtoUCS((wchar_t *) bcc_ptr, tree, 100, nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * length; /* convert num of 16 bit words to bytes */
|
|
|
|
|
bcc_ptr += 2; /* skip trailing null */
|
|
|
|
|
} else { /* ASCII */
|
|
|
|
|
|
|
|
|
|
strcpy(bcc_ptr, tree);
|
|
|
|
|
bcc_ptr += strlen(tree) + 1;
|
|
|
|
|
}
|
|
|
|
|
strcpy(bcc_ptr, "?????");
|
|
|
|
|
bcc_ptr += strlen("?????");
|
|
|
|
|
bcc_ptr += 1;
|
|
|
|
|
count = bcc_ptr - &pSMB->Password[0];
|
|
|
|
|
pSMB->hdr.smb_buf_length += count;
|
|
|
|
|
pSMB->ByteCount = cpu_to_le16(count);
|
|
|
|
|
|
|
|
|
|
rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, &length, 0);
|
|
|
|
|
|
|
|
|
|
/* if (rc) rc = map_smb_to_linux_error(smb_buffer_response); */
|
|
|
|
|
/* above now done in SendReceive */
|
|
|
|
|
if ((rc == 0) && (tcon != NULL)) {
|
|
|
|
|
tcon->tidStatus = CifsGood;
|
|
|
|
|
tcon->tid = smb_buffer_response->Tid;
|
|
|
|
|
bcc_ptr = pByteArea(smb_buffer_response);
|
|
|
|
|
length = strnlen(bcc_ptr, BCC(smb_buffer_response) - 2);
|
|
|
|
|
/* skip service field (NB: this field is always ASCII) */
|
|
|
|
|
bcc_ptr += length + 1;
|
|
|
|
|
strncpy(tcon->treeName, tree, MAX_TREE_SIZE);
|
|
|
|
|
if (smb_buffer->Flags2 & SMBFLG2_UNICODE) {
|
|
|
|
|
length = UniStrnlen((wchar_t *) bcc_ptr, 512);
|
|
|
|
|
if ((bcc_ptr + (2 * length)) -
|
|
|
|
|
pByteArea(smb_buffer_response) <=
|
|
|
|
|
BCC(smb_buffer_response)) {
|
|
|
|
|
if(tcon->nativeFileSystem)
|
|
|
|
|
kfree(tcon->nativeFileSystem);
|
|
|
|
|
tcon->nativeFileSystem =
|
|
|
|
|
cifs_kcalloc(length + 2, GFP_KERNEL);
|
|
|
|
|
cifs_strfromUCS_le(tcon->nativeFileSystem,
|
|
|
|
|
(wchar_t *) bcc_ptr,
|
|
|
|
|
length, nls_codepage);
|
|
|
|
|
bcc_ptr += 2 * length;
|
|
|
|
|
bcc_ptr[0] = 0; /* null terminate the string */
|
|
|
|
|
bcc_ptr[1] = 0;
|
|
|
|
|
bcc_ptr += 2;
|
|
|
|
|
}
|
|
|
|
|
/* else do not bother copying these informational fields */
|
|
|
|
|
} else {
|
|
|
|
|
length = strnlen(bcc_ptr, 1024);
|
|
|
|
|
if ((bcc_ptr + length) -
|
|
|
|
|
pByteArea(smb_buffer_response) <=
|
|
|
|
|
BCC(smb_buffer_response)) {
|
|
|
|
|
if(tcon->nativeFileSystem)
|
|
|
|
|
kfree(tcon->nativeFileSystem);
|
|
|
|
|
tcon->nativeFileSystem =
|
|
|
|
|
cifs_kcalloc(length + 1, GFP_KERNEL);
|
|
|
|
|
strncpy(tcon->nativeFileSystem, bcc_ptr,
|
|
|
|
|
length);
|
|
|
|
|
}
|
|
|
|
|
/* else do not bother copying these informational fields */
|
|
|
|
|
}
|
|
|
|
|
tcon->Flags = le16_to_cpu(pSMBr->OptionalSupport);
|
|
|
|
|
cFYI(1, ("Tcon flags: 0x%x ", tcon->Flags));
|
|
|
|
|
} else if ((rc == 0) && tcon == NULL) {
|
|
|
|
|
/* all we need to save for IPC$ connection */
|
|
|
|
|
ses->ipc_tid = smb_buffer_response->Tid;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (smb_buffer)
|
|
|
|
|
cifs_buf_release(smb_buffer);
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb)
|
|
|
|
|
{
|
|
|
|
|
int rc = 0;
|
|
|
|
|
int xid;
|
|
|
|
|
struct cifsSesInfo *ses = NULL;
|
|
|
|
|
struct task_struct *cifsd_task;
|
|
|
|
|
|
|
|
|
|
xid = GetXid();
|
|
|
|
|
|
|
|
|
|
if (cifs_sb->tcon) {
|
|
|
|
|
ses = cifs_sb->tcon->ses; /* save ptr to ses before delete tcon!*/
|
|
|
|
|
rc = CIFSSMBTDis(xid, cifs_sb->tcon);
|
|
|
|
|
if (rc == -EBUSY) {
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
tconInfoFree(cifs_sb->tcon);
|
|
|
|
|
if ((ses) && (ses->server)) {
|
|
|
|
|
/* save off task so we do not refer to ses later */
|
|
|
|
|
cifsd_task = ses->server->tsk;
|
|
|
|
|
cFYI(1, ("About to do SMBLogoff "));
|
|
|
|
|
rc = CIFSSMBLogoff(xid, ses);
|
|
|
|
|
if (rc == -EBUSY) {
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return 0;
|
|
|
|
|
} else if (rc == -ESHUTDOWN) {
|
|
|
|
|
cFYI(1,("Waking up socket by sending it signal"));
|
|
|
|
|
if(cifsd_task)
|
|
|
|
|
send_sig(SIGKILL,cifsd_task,1);
|
|
|
|
|
rc = 0;
|
|
|
|
|
} /* else - we have an smb session
|
|
|
|
|
left on this socket do not kill cifsd */
|
|
|
|
|
} else
|
|
|
|
|
cFYI(1, ("No session or bad tcon"));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
cifs_sb->tcon = NULL;
|
|
|
|
|
if (ses) {
|
|
|
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
|
|
|
schedule_timeout(HZ / 2);
|
|
|
|
|
}
|
|
|
|
|
if (ses)
|
|
|
|
|
sesInfoFree(ses);
|
|
|
|
|
|
|
|
|
|
FreeXid(xid);
|
|
|
|
|
return rc; /* BB check if we should always return zero here */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
|
|
|
|
|
struct nls_table * nls_info)
|
|
|
|
|
{
|
|
|
|
|
int rc = 0;
|
|
|
|
|
char ntlm_session_key[CIFS_SESSION_KEY_SIZE];
|
|
|
|
|
int ntlmv2_flag = FALSE;
|
2005-04-29 05:41:05 +00:00
|
|
|
int first_time = 0;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
|
/* what if server changes its buffer size after dropping the session? */
|
|
|
|
|
if(pSesInfo->server->maxBuf == 0) /* no need to send on reconnect */ {
|
|
|
|
|
rc = CIFSSMBNegotiate(xid, pSesInfo);
|
|
|
|
|
if(rc == -EAGAIN) /* retry only once on 1st time connection */ {
|
|
|
|
|
rc = CIFSSMBNegotiate(xid, pSesInfo);
|
|
|
|
|
if(rc == -EAGAIN)
|
|
|
|
|
rc = -EHOSTDOWN;
|
|
|
|
|
}
|
|
|
|
|
if(rc == 0) {
|
|
|
|
|
spin_lock(&GlobalMid_Lock);
|
|
|
|
|
if(pSesInfo->server->tcpStatus != CifsExiting)
|
|
|
|
|
pSesInfo->server->tcpStatus = CifsGood;
|
|
|
|
|
else
|
|
|
|
|
rc = -EHOSTDOWN;
|
|
|
|
|
spin_unlock(&GlobalMid_Lock);
|
|
|
|
|
|
|
|
|
|
}
|
2005-04-29 05:41:05 +00:00
|
|
|
first_time = 1;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
if (!rc) {
|
|
|
|
|
pSesInfo->capabilities = pSesInfo->server->capabilities;
|
|
|
|
|
if(linuxExtEnabled == 0)
|
|
|
|
|
pSesInfo->capabilities &= (~CAP_UNIX);
|
2005-04-29 05:41:05 +00:00
|
|
|
/* pSesInfo->sequence_number = 0;*/
|
2005-04-16 22:20:36 +00:00
|
|
|
cFYI(1,("Security Mode: 0x%x Capabilities: 0x%x Time Zone: %d",
|
|
|
|
|
pSesInfo->server->secMode,
|
|
|
|
|
pSesInfo->server->capabilities,
|
|
|
|
|
pSesInfo->server->timeZone));
|
|
|
|
|
if (extended_security
|
|
|
|
|
&& (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
|
|
|
|
|
&& (pSesInfo->server->secType == NTLMSSP)) {
|
|
|
|
|
cFYI(1, ("New style sesssetup "));
|
|
|
|
|
rc = CIFSSpnegoSessSetup(xid, pSesInfo,
|
|
|
|
|
NULL /* security blob */,
|
|
|
|
|
0 /* blob length */,
|
|
|
|
|
nls_info);
|
|
|
|
|
} else if (extended_security
|
|
|
|
|
&& (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
|
|
|
|
|
&& (pSesInfo->server->secType == RawNTLMSSP)) {
|
|
|
|
|
cFYI(1, ("NTLMSSP sesssetup "));
|
|
|
|
|
rc = CIFSNTLMSSPNegotiateSessSetup(xid,
|
|
|
|
|
pSesInfo,
|
|
|
|
|
&ntlmv2_flag,
|
|
|
|
|
nls_info);
|
|
|
|
|
if (!rc) {
|
|
|
|
|
if(ntlmv2_flag) {
|
|
|
|
|
char * v2_response;
|
|
|
|
|
cFYI(1,("Can use more secure NTLM version 2 password hash"));
|
|
|
|
|
if(CalcNTLMv2_partial_mac_key(pSesInfo,
|
|
|
|
|
nls_info)) {
|
|
|
|
|
rc = -ENOMEM;
|
|
|
|
|
goto ss_err_exit;
|
|
|
|
|
} else
|
|
|
|
|
v2_response = kmalloc(16 + 64 /* blob */, GFP_KERNEL);
|
|
|
|
|
if(v2_response) {
|
|
|
|
|
CalcNTLMv2_response(pSesInfo,v2_response);
|
2005-04-29 05:41:05 +00:00
|
|
|
/* if(first_time)
|
|
|
|
|
cifs_calculate_ntlmv2_mac_key(
|
|
|
|
|
pSesInfo->server->mac_signing_key,
|
|
|
|
|
response, ntlm_session_key, */
|
2005-04-16 22:20:36 +00:00
|
|
|
kfree(v2_response);
|
|
|
|
|
/* BB Put dummy sig in SessSetup PDU? */
|
|
|
|
|
} else {
|
|
|
|
|
rc = -ENOMEM;
|
|
|
|
|
goto ss_err_exit;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
SMBNTencrypt(pSesInfo->password,
|
|
|
|
|
pSesInfo->server->cryptKey,
|
|
|
|
|
ntlm_session_key);
|
|
|
|
|
|
2005-04-29 05:41:05 +00:00
|
|
|
if(first_time)
|
|
|
|
|
cifs_calculate_mac_key(
|
|
|
|
|
pSesInfo->server->mac_signing_key,
|
|
|
|
|
ntlm_session_key,
|
|
|
|
|
pSesInfo->password);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
/* for better security the weaker lanman hash not sent
|
|
|
|
|
in AuthSessSetup so we no longer calculate it */
|
|
|
|
|
|
|
|
|
|
rc = CIFSNTLMSSPAuthSessSetup(xid,
|
|
|
|
|
pSesInfo,
|
|
|
|
|
ntlm_session_key,
|
|
|
|
|
ntlmv2_flag,
|
|
|
|
|
nls_info);
|
|
|
|
|
}
|
|
|
|
|
} else { /* old style NTLM 0.12 session setup */
|
|
|
|
|
SMBNTencrypt(pSesInfo->password,
|
|
|
|
|
pSesInfo->server->cryptKey,
|
|
|
|
|
ntlm_session_key);
|
|
|
|
|
|
2005-04-29 05:41:05 +00:00
|
|
|
if(first_time)
|
|
|
|
|
cifs_calculate_mac_key(
|
|
|
|
|
pSesInfo->server->mac_signing_key,
|
|
|
|
|
ntlm_session_key, pSesInfo->password);
|
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
rc = CIFSSessSetup(xid, pSesInfo,
|
|
|
|
|
ntlm_session_key, nls_info);
|
|
|
|
|
}
|
|
|
|
|
if (rc) {
|
|
|
|
|
cERROR(1,("Send error in SessSetup = %d",rc));
|
|
|
|
|
} else {
|
|
|
|
|
cFYI(1,("CIFS Session Established successfully"));
|
|
|
|
|
pSesInfo->status = CifsGood;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
ss_err_exit:
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
