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466 lines
14 KiB
C
466 lines
14 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2000-2001 Boris Popov
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Two levels of connection hierarchy
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*/
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#define SMBL_SM 0
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#define SMBL_VC 1
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#define SMBL_SHARE 2
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#define SMBL_NUM 3
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#define SMBL_NONE (-1)
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#define SMB_CS_NONE 0x0000
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#define SMB_CS_UPPER 0x0001 /* convert passed string to upper case */
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#define SMB_CS_LOWER 0x0002 /* convert passed string to lower case */
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/*
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* Common object flags
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*/
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#define SMBO_GONE 0x1000000
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/*
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* access modes
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*/
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#define SMBM_READ 0400 /* read conn attrs.(like list shares) */
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#define SMBM_WRITE 0200 /* modify conn attrs */
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#define SMBM_EXEC 0100 /* can send SMB requests */
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#define SMBM_READGRP 0040
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#define SMBM_WRITEGRP 0020
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#define SMBM_EXECGRP 0010
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#define SMBM_READOTH 0004
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#define SMBM_WRITEOTH 0002
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#define SMBM_EXECOTH 0001
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#define SMBM_MASK 0777
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#define SMBM_EXACT 010000 /* check for specified mode exactly */
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#define SMBM_ALL (SMBM_READ | SMBM_WRITE | SMBM_EXEC)
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#define SMBM_DEFAULT (SMBM_READ | SMBM_WRITE | SMBM_EXEC)
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#define SMBM_ANY_OWNER ((uid_t)-1)
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#define SMBM_ANY_GROUP ((gid_t)-1)
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/*
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* VC flags
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*/
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#define SMBV_PERMANENT 0x0002
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#define SMBV_LONGNAMES 0x0004 /* connection is configured to use long names */
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#define SMBV_ENCRYPT 0x0008 /* server asked for encrypted password */
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#define SMBV_WIN95 0x0010 /* used to apply bugfixes for this OS */
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#define SMBV_PRIVATE 0x0020 /* connection can be used only by creator */
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#define SMBV_RECONNECTING 0x0040 /* conn is in the process of reconnection */
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#define SMBV_SINGLESHARE 0x0080 /* only one share connecting should be allowed */
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#define SMBV_CREATE 0x0100 /* lookup for create operation */
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/*#define SMBV_FAILED 0x0200*/ /* last reconnect attempt has failed */
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#define SMBV_UNICODE 0x0400 /* connection is configured to use Unicode */
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/*
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* smb_share flags
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*/
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#define SMBS_PERMANENT 0x0001
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#define SMBS_RECONNECTING 0x0002
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#define SMBS_CONNECTED 0x0004
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/*
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* share types
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*/
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#define SMB_ST_DISK 0x0 /* A: */
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#define SMB_ST_PRINTER 0x1 /* LPT: */
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#define SMB_ST_PIPE 0x2 /* IPC */
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#define SMB_ST_COMM 0x3 /* COMM */
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#define SMB_ST_ANY 0x4
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#define SMB_ST_MAX 0x4
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#define SMB_ST_NONE 0xff /* not a part of protocol */
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/*
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* Negotiated protocol parameters
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*/
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struct smb_sopt {
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int sv_proto;
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int16_t sv_tz; /* offset in min relative to UTC */
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u_int32_t sv_maxtx; /* maximum transmit buf size */
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u_char sv_sm; /* security mode */
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u_int16_t sv_maxmux; /* max number of outstanding rq's */
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u_int16_t sv_maxvcs; /* max number of VCs */
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u_int16_t sv_rawmode;
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u_int32_t sv_maxraw; /* maximum raw-buffer size */
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u_int32_t sv_skey; /* session key */
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u_int32_t sv_caps; /* capabilities SMB_CAP_ */
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};
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/*
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* network IO daemon states
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*/
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enum smbiod_state {
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SMBIOD_ST_NOTCONN, /* no connect request was made */
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SMBIOD_ST_RECONNECT, /* a [re]connect attempt is in progress */
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SMBIOD_ST_TRANACTIVE, /* transport level is up */
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SMBIOD_ST_VCACTIVE, /* session established */
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SMBIOD_ST_DEAD /* connection broken, transport is down */
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};
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/*
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* Info structures
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*/
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#define SMB_INFO_NONE 0
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#define SMB_INFO_VC 2
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#define SMB_INFO_SHARE 3
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struct smb_vc_info {
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int itype;
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int usecount;
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uid_t uid; /* user id of connection */
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gid_t gid; /* group of connection */
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mode_t mode; /* access mode */
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int flags;
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enum smbiod_state iodstate;
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struct smb_sopt sopt;
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char srvname[SMB_MAXSRVNAMELEN + 1];
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char vcname[128];
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};
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struct smb_share_info {
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int itype;
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int usecount;
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u_short tid; /* TID */
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int type; /* share type */
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uid_t uid; /* user id of connection */
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gid_t gid; /* group of connection */
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mode_t mode; /* access mode */
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int flags;
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char sname[128];
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};
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#ifdef _KERNEL
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#include <netsmb/smb_subr.h>
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#include <sys/param.h>
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#include <sys/lock.h>
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#include <sys/condvar.h>
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#include <sys/sx.h>
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#define CONNADDREQ(a1,a2) ((a1)->sa_len == (a2)->sa_len && \
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bcmp(a1, a2, (a1)->sa_len) == 0)
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struct smb_vc;
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struct smb_share;
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struct smb_cred;
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struct smb_rq;
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struct mbdata;
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struct smbioc_oshare;
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struct smbioc_ossn;
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struct uio;
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TAILQ_HEAD(smb_rqhead, smb_rq);
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#define SMB_DEFRQTIMO 5
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#define SMB_DIALECT(vcp) ((vcp)->vc_sopt.sv_proto)
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struct smb_tran_desc;
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/*
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* Connection object
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*/
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struct smb_connobj;
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typedef void smb_co_gone_t (struct smb_connobj *cp, struct smb_cred *scred);
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typedef void smb_co_free_t (struct smb_connobj *cp);
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struct smb_connobj {
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struct cv co_lock;
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struct thread *co_locker;
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struct sx co_interlock;
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int co_lockcnt;
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int co_level; /* SMBL_ */
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int co_flags;
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int co_usecount;
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struct smb_connobj * co_parent;
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SLIST_HEAD(,smb_connobj)co_children;
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SLIST_ENTRY(smb_connobj)co_next;
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smb_co_gone_t * co_gone;
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smb_co_free_t * co_free;
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};
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#define SMBCO_FOREACH(var, cp) SLIST_FOREACH((var), &(cp)->co_children, co_next)
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/*
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* Virtual Circuit (session) to a server.
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* This is the most (over)complicated part of SMB protocol.
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* For the user security level (usl), each session with different remote
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* user name has its own VC.
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* It is unclear however, should share security level (ssl) allow additional
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* VCs, because user name is not used and can be the same. On other hand,
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* multiple VCs allows us to create separate sessions to server on a per
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* user basis.
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*/
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/*
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* This lock protects vc_flags
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*/
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#define SMBC_ST_LOCK(vcp) smb_sl_lock(&(vcp)->vc_stlock)
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#define SMBC_ST_UNLOCK(vcp) smb_sl_unlock(&(vcp)->vc_stlock)
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struct smb_vc {
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struct smb_connobj obj;
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char * vc_srvname;
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struct sockaddr*vc_paddr; /* server addr */
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struct sockaddr*vc_laddr; /* local addr, if any */
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char * vc_username;
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char * vc_pass; /* password for usl case */
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char * vc_domain; /* workgroup/primary domain */
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u_int vc_timo; /* default request timeout */
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int vc_maxvcs; /* maximum number of VC per connection */
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void * vc_tolower; /* local charset */
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void * vc_toupper; /* local charset */
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void * vc_toserver; /* local charset to server one */
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void * vc_tolocal; /* server charset to local one */
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void * vc_cp_toserver; /* local charset to server one (using CodePage) */
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void * vc_cp_tolocal; /* server charset to local one (using CodePage) */
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void * vc_ucs_toserver; /* local charset to server one (using UCS-2) */
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void * vc_ucs_tolocal; /* server charset to local one (using UCS-2) */
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int vc_number; /* number of this VC from the client side */
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int vc_genid;
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uid_t vc_uid; /* user id of connection */
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gid_t vc_grp; /* group of connection */
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mode_t vc_mode; /* access mode */
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u_short vc_smbuid; /* unique vc id assigned by server */
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u_char vc_hflags; /* or'ed with flags in the smb header */
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u_short vc_hflags2; /* or'ed with flags in the smb header */
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void * vc_tdata; /* transport control block */
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struct smb_tran_desc *vc_tdesc;
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int vc_chlen; /* actual challenge length */
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u_char vc_ch[SMB_MAXCHALLENGELEN];
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u_short vc_mid; /* multiplex id */
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struct smb_sopt vc_sopt; /* server options */
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int vc_txmax; /* max tx/rx packet size */
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int vc_rxmax; /* max readx data size */
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int vc_wxmax; /* max writex data size */
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struct smbiod * vc_iod;
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struct smb_slock vc_stlock;
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u_int32_t vc_seqno; /* my next sequence number */
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u_int8_t *vc_mackey; /* MAC key */
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int vc_mackeylen; /* length of MAC key */
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};
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#define vc_maxmux vc_sopt.sv_maxmux
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#define vc_flags obj.co_flags
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#define SMB_UNICODE_STRINGS(vcp) ((vcp)->vc_hflags2 & SMB_FLAGS2_UNICODE)
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#define SMB_UNICODE_NAME "UCS-2LE"
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/*
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* smb_share structure describes connection to the given SMB share (tree).
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* Connection to share is always built on top of the VC.
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*/
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/*
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* This lock protects ss_flags
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*/
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#define SMBS_ST_LOCK(ssp) smb_sl_lock(&(ssp)->ss_stlock)
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#define SMBS_ST_LOCKPTR(ssp) (&(ssp)->ss_stlock)
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#define SMBS_ST_UNLOCK(ssp) smb_sl_unlock(&(ssp)->ss_stlock)
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struct smb_share {
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struct smb_connobj obj;
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char * ss_name;
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u_short ss_tid; /* TID */
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int ss_type; /* share type */
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uid_t ss_uid; /* user id of connection */
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gid_t ss_grp; /* group of connection */
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mode_t ss_mode; /* access mode */
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int ss_vcgenid;
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char * ss_pass; /* password to a share, can be null */
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struct smb_slock ss_stlock;
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};
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#define ss_flags obj.co_flags
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#define CPTOVC(cp) ((struct smb_vc*)(cp))
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#define VCTOCP(vcp) (&(vcp)->obj)
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#define CPTOSS(cp) ((struct smb_share*)(cp))
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#define SSTOVC(ssp) CPTOVC(((ssp)->obj.co_parent))
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#define SSTOCP(ssp) (&(ssp)->obj)
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struct smb_vcspec {
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char * srvname;
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struct sockaddr*sap;
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struct sockaddr*lap;
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int flags;
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char * username;
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char * pass;
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char * domain;
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mode_t mode;
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mode_t rights;
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uid_t owner;
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gid_t group;
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char * localcs;
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char * servercs;
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struct smb_sharespec *shspec;
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struct smb_share *ssp; /* returned */
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/*
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* The rest is an internal data
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*/
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struct smb_cred *scred;
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};
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struct smb_sharespec {
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char * name;
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char * pass;
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mode_t mode;
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mode_t rights;
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uid_t owner;
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gid_t group;
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int stype;
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/*
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* The rest is an internal data
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*/
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struct smb_cred *scred;
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};
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/*
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* Session level functions
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*/
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int smb_sm_init(void);
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int smb_sm_done(void);
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int smb_sm_lookup(struct smb_vcspec *vcspec,
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struct smb_sharespec *shspec, struct smb_cred *scred,
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struct smb_vc **vcpp);
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/*
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* Connection object
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*/
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void smb_co_ref(struct smb_connobj *cp);
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void smb_co_rele(struct smb_connobj *cp, struct smb_cred *scred);
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int smb_co_get(struct smb_connobj *cp, struct smb_cred *scred);
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void smb_co_put(struct smb_connobj *cp, struct smb_cred *scred);
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int smb_co_lock(struct smb_connobj *cp);
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void smb_co_unlock(struct smb_connobj *cp);
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/*
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* session level functions
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*/
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int smb_vc_create(struct smb_vcspec *vcspec,
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struct smb_cred *scred, struct smb_vc **vcpp);
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int smb_vc_connect(struct smb_vc *vcp, struct smb_cred *scred);
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int smb_vc_access(struct smb_vc *vcp, struct smb_cred *scred, mode_t mode);
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int smb_vc_get(struct smb_vc *vcp, struct smb_cred *scred);
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void smb_vc_put(struct smb_vc *vcp, struct smb_cred *scred);
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void smb_vc_ref(struct smb_vc *vcp);
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void smb_vc_rele(struct smb_vc *vcp, struct smb_cred *scred);
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int smb_vc_lock(struct smb_vc *vcp);
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void smb_vc_unlock(struct smb_vc *vcp);
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int smb_vc_lookupshare(struct smb_vc *vcp, struct smb_sharespec *shspec,
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struct smb_cred *scred, struct smb_share **sspp);
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const char * smb_vc_getpass(struct smb_vc *vcp);
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u_short smb_vc_nextmid(struct smb_vc *vcp);
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/*
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* share level functions
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*/
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int smb_share_create(struct smb_vc *vcp, struct smb_sharespec *shspec,
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struct smb_cred *scred, struct smb_share **sspp);
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int smb_share_access(struct smb_share *ssp, struct smb_cred *scred, mode_t mode);
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void smb_share_ref(struct smb_share *ssp);
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void smb_share_rele(struct smb_share *ssp, struct smb_cred *scred);
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int smb_share_get(struct smb_share *ssp, struct smb_cred *scred);
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void smb_share_put(struct smb_share *ssp, struct smb_cred *scred);
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int smb_share_lock(struct smb_share *ssp);
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void smb_share_unlock(struct smb_share *ssp);
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void smb_share_invalidate(struct smb_share *ssp);
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int smb_share_valid(struct smb_share *ssp);
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const char * smb_share_getpass(struct smb_share *ssp);
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/*
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* SMB protocol level functions
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*/
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int smb_smb_negotiate(struct smb_vc *vcp, struct smb_cred *scred);
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int smb_smb_ssnsetup(struct smb_vc *vcp, struct smb_cred *scred);
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int smb_smb_ssnclose(struct smb_vc *vcp, struct smb_cred *scred);
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int smb_smb_treeconnect(struct smb_share *ssp, struct smb_cred *scred);
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int smb_smb_treedisconnect(struct smb_share *ssp, struct smb_cred *scred);
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int smb_read(struct smb_share *ssp, u_int16_t fid, struct uio *uio,
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struct smb_cred *scred);
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int smb_write(struct smb_share *ssp, u_int16_t fid, struct uio *uio,
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struct smb_cred *scred);
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int smb_smb_echo(struct smb_vc *vcp, struct smb_cred *scred);
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/*
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* smbiod thread
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*/
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#define SMBIOD_EV_NEWRQ 0x0001
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#define SMBIOD_EV_SHUTDOWN 0x0002
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#define SMBIOD_EV_CONNECT 0x0003
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#define SMBIOD_EV_DISCONNECT 0x0004
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#define SMBIOD_EV_TREECONNECT 0x0005
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#define SMBIOD_EV_MASK 0x00ff
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#define SMBIOD_EV_SYNC 0x0100
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#define SMBIOD_EV_PROCESSING 0x0200
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struct smbiod_event {
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int ev_type;
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int ev_error;
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void * ev_ident;
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STAILQ_ENTRY(smbiod_event) ev_link;
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};
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#define SMBIOD_SHUTDOWN 0x0001
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struct smbiod {
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int iod_id;
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int iod_flags;
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enum smbiod_state iod_state;
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int iod_muxcnt; /* number of active outstanding requests */
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int iod_sleeptimo;
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struct smb_vc * iod_vc;
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struct smb_slock iod_rqlock; /* iod_rqlist, iod_muxwant */
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struct smb_rqhead iod_rqlist; /* list of outstanding requests */
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int iod_muxwant;
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struct proc * iod_p;
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struct thread * iod_td;
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struct smb_cred iod_scred;
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struct smb_slock iod_evlock; /* iod_evlist */
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STAILQ_HEAD(,smbiod_event) iod_evlist;
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struct timespec iod_lastrqsent;
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struct timespec iod_pingtimo;
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};
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int smb_iod_init(void);
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int smb_iod_done(void);
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int smb_iod_create(struct smb_vc *vcp);
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int smb_iod_destroy(struct smbiod *iod);
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int smb_iod_request(struct smbiod *iod, int event, void *ident);
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int smb_iod_addrq(struct smb_rq *rqp);
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int smb_iod_waitrq(struct smb_rq *rqp);
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int smb_iod_removerq(struct smb_rq *rqp);
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#endif /* _KERNEL */
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