sys/netproto/smb/smb_conn.h

   1 /*
   2  * Copyright (c) 2000-2001 Boris Popov
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *    This product includes software developed by Boris Popov.
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * $FreeBSD: src/sys/netsmb/smb_conn.h,v 1.1.2.3 2002/04/23 03:45:01 bp Exp $
  33  * $DragonFly: src/sys/netproto/smb/smb_conn.h,v 1.8 2006/07/28 02:17:41 dillon Exp $
  34  */
  35 #ifndef _NETINET_IN_H_
  36 #include <netinet/in.h>
  37 #endif
  38
  39 /*
  40  * Two levels of connection hierarchy
  41  */
  42 #define SMBL_SM         0
  43 #define SMBL_VC         1
  44 #define SMBL_SHARE      2
  45 #define SMBL_NUM        3
  46 #define SMBL_NONE       (-1)
  47
  48 #define SMB_CS_NONE     0x0000
  49 #define SMB_CS_UPPER    0x0001          /* convert passed string to upper case */
  50 #define SMB_CS_LOWER    0x0002          /* convert passed string to lower case */
  51
  52 /*
  53  * Common object flags
  54  */
  55 #define SMBO_GONE               0x1000000
  56
  57 /*
  58  * access modes
  59  */
  60 #define SMBM_READ               0400    /* read conn attrs.(like list shares) */
  61 #define SMBM_WRITE              0200    /* modify conn attrs */
  62 #define SMBM_EXEC               0100    /* can send SMB requests */
  63 #define SMBM_READGRP            0040
  64 #define SMBM_WRITEGRP           0020
  65 #define SMBM_EXECGRP            0010
  66 #define SMBM_READOTH            0004
  67 #define SMBM_WRITEOTH           0002
  68 #define SMBM_EXECOTH            0001
  69 #define SMBM_MASK               0777
  70 #define SMBM_EXACT              010000  /* check for specified mode exactly */
  71 #define SMBM_ALL                (SMBM_READ | SMBM_WRITE | SMBM_EXEC)
  72 #define SMBM_DEFAULT            (SMBM_READ | SMBM_WRITE | SMBM_EXEC)
  73 #define SMBM_ANY_OWNER          ((uid_t)-1)
  74 #define SMBM_ANY_GROUP          ((gid_t)-1)
  75
  76 /*
  77  * VC flags
  78  */
  79 #define SMBV_PERMANENT          0x0002
  80 #define SMBV_LONGNAMES          0x0004  /* connection is configured to use long names */
  81 #define SMBV_ENCRYPT            0x0008  /* server asked for encrypted password */
  82 #define SMBV_WIN95              0x0010  /* used to apply bugfixes for this OS */
  83 #define SMBV_PRIVATE            0x0020  /* connection can be used only by creator */
  84 #define SMBV_RECONNECTING       0x0040  /* conn is in the process of reconnection */
  85 #define SMBV_SINGLESHARE        0x0080  /* only one share connecting should be allowed */
  86 #define SMBV_CREATE             0x0100  /* lookup for create operation */
  87 /*#define SMBV_FAILED           0x0200*/        /* last reconnect attempt has failed */
  88 #define SMBV_UNICODE            0x0400  /* connection is configured to use Unicode */
  89
  90
  91 /*
  92  * smb_share flags
  93  */
  94 #define SMBS_PERMANENT          0x0001
  95 #define SMBS_RECONNECTING       0x0002
  96 #define SMBS_CONNECTED          0x0004
  97
  98 /*
  99  * share types
 100  */
 101 #define SMB_ST_DISK             0x0     /* A: */
 102 #define SMB_ST_PRINTER          0x1     /* LPT: */
 103 #define SMB_ST_PIPE             0x2     /* IPC */
 104 #define SMB_ST_COMM             0x3     /* COMM */
 105 #define SMB_ST_ANY              0x4
 106 #define SMB_ST_MAX              0x4
 107 #define SMB_ST_NONE             0xff    /* not a part of protocol */
 108
 109 /*
 110  * Negotiated protocol parameters
 111  */
 112 struct smb_sopt {
 113         int             sv_proto;
 114         int16_t         sv_tz;          /* offset in min relative to UTC */
 115         u_int32_t       sv_maxtx;       /* maximum transmit buf size */
 116         u_char          sv_sm;          /* security mode */
 117         u_int16_t       sv_maxmux;      /* max number of outstanding rq's */
 118         u_int16_t       sv_maxvcs;      /* max number of VCs */
 119         u_int16_t       sv_rawmode;
 120         u_int32_t       sv_maxraw;      /* maximum raw-buffer size */
 121         u_int32_t       sv_skey;        /* session key */
 122         u_int32_t       sv_caps;        /* capabilities SMB_CAP_ */
 123 };
 124
 125 /*
 126  * network IO daemon states
 127  */
 128 enum smbiod_state {
 129         SMBIOD_ST_NOTCONN,      /* no connect request was made */
 130         SMBIOD_ST_RECONNECT,    /* a [re]connect attempt is in progress */
 131         SMBIOD_ST_TRANACTIVE,   /* transport level is up */
 132         SMBIOD_ST_VCACTIVE,     /* session established */
 133         SMBIOD_ST_DEAD          /* connection broken, transport is down */
 134 };
 135
 136
 137 /*
 138  * Info structures
 139  */
 140 #define SMB_INFO_NONE           0
 141 #define SMB_INFO_VC             2
 142 #define SMB_INFO_SHARE          3
 143
 144 struct smb_vc_info {
 145         int             itype;
 146         int             usecount;
 147         uid_t           uid;            /* user id of connection */
 148         gid_t           gid;            /* group of connection */
 149         mode_t          mode;           /* access mode */
 150         int             flags;
 151         enum smbiod_state iodstate;
 152         struct smb_sopt sopt;
 153         char            srvname[SMB_MAXSRVNAMELEN];
 154         char            vcname[128];
 155 };
 156
 157 struct smb_share_info {
 158         int             itype;
 159         int             usecount;
 160         u_short         tid;            /* TID */
 161         int             type;           /* share type */
 162         uid_t           uid;            /* user id of connection */
 163         gid_t           gid;            /* group of connection */
 164         mode_t          mode;           /* access mode */
 165         int             flags;
 166         char            sname[128];
 167 };
 168
 169 #ifdef _KERNEL
 170
 171 #include <sys/lock.h>
 172 #include "smb_subr.h"
 173
 174 #define CONNADDREQ(a1,a2)       ((a1)->sa_len == (a2)->sa_len && \
 175                                  bcmp(a1, a2, (a1)->sa_len) == 0)
 176
 177 struct smb_vc;
 178 struct smb_share;
 179 struct smb_cred;
 180 struct smb_rq;
 181 struct mbdata;
 182 struct smbioc_oshare;
 183 struct smbioc_ossn;
 184 struct uio;
 185
 186 TAILQ_HEAD(smb_rqhead, smb_rq);
 187
 188 #define SMB_DEFRQTIMO   5
 189
 190 #define SMB_DIALECT(vcp)        ((vcp)->vc_sopt.sv_proto)
 191
 192 struct smb_tran_desc;
 193
 194 /*
 195  * Connection object
 196  */
 197 struct smb_connobj;
 198
 199 typedef void smb_co_gone_t (struct smb_connobj *cp, struct smb_cred *scred);
 200 typedef void smb_co_free_t (struct smb_connobj *cp);
 201
 202 #define SMB_CO_LOCK(cp)         smb_sl_lock(&(cp)->co_interlock)
 203 #define SMB_CO_UNLOCK(cp)       smb_sl_unlock(&(cp)->co_interlock)
 204 #define SMB_CO_INTERLOCK(cp)    (&(cp)->co_interlock)
 205
 206 struct smb_connobj {
 207         int                     co_level;       /* SMBL_ */
 208         int                     co_flags;
 209         struct lock             co_lock;
 210         struct smb_slock        co_interlock;
 211         int                     co_usecount;
 212         struct smb_connobj *    co_parent;
 213         SLIST_HEAD(,smb_connobj)co_children;
 214         SLIST_ENTRY(smb_connobj)co_next;
 215         smb_co_gone_t *         co_gone;
 216         smb_co_free_t *         co_free;
 217 };
 218
 219 #define SMBCO_FOREACH(var, cp)  SLIST_FOREACH((var), &(cp)->co_children, co_next)
 220
 221 /*
 222  * Virtual Circuit (session) to a server.
 223  * This is the most (over)complicated part of SMB protocol.
 224  * For the user security level (usl), each session with different remote
 225  * user name has its own VC.
 226  * It is unclear however, should share security level (ssl) allow additional
 227  * VCs, because user name is not used and can be the same. On other hand,
 228  * multiple VCs allows us to create separate sessions to server on a per
 229  * user basis.
 230  */
 231
 232 /*
 233  * This lock protects vc_flags
 234  */
 235 #define SMBC_ST_LOCK(vcp)               smb_sl_lock(&(vcp)->vc_stlock)
 236 #define SMBC_ST_UNLOCK(vcp)             smb_sl_unlock(&(vcp)->vc_stlock)
 237
 238
 239 struct smb_vc {
 240         struct smb_connobj obj;
 241         char *          vc_srvname;
 242         struct sockaddr*vc_paddr;       /* server addr */
 243         struct sockaddr*vc_laddr;       /* local addr, if any */
 244         char *          vc_username;
 245         char *          vc_pass;        /* password for usl case */
 246         char *          vc_domain;      /* workgroup/primary domain */
 247
 248         u_int           vc_timo;        /* default request timeout */
 249         int             vc_maxvcs;      /* maximum number of VC per connection */
 250
 251         void *          vc_tolower;     /* local charset */
 252         void *          vc_toupper;     /* local charset */
 253         void *          vc_toserver;    /* local charset to server one */
 254         void *          vc_tolocal;     /* server charset to local one */
 255         int             vc_number;      /* number of this VC from the client side */
 256         int             vc_genid;
 257         uid_t           vc_uid;         /* user id of connection */
 258         gid_t           vc_grp;         /* group of connection */
 259         mode_t          vc_mode;        /* access mode */
 260         struct tnode *  vc_tnode;       /* backing object */
 261         u_short         vc_smbuid;      /* unique vc id assigned by server */
 262
 263         u_char          vc_hflags;      /* or'ed with flags in the smb header */
 264         u_short         vc_hflags2;     /* or'ed with flags in the smb header */
 265         void *          vc_tdata;       /* transport control block */
 266         struct smb_tran_desc *vc_tdesc;
 267         int             vc_chlen;       /* actual challenge length */
 268         u_char          vc_ch[SMB_MAXCHALLENGELEN];
 269         u_short         vc_mid;         /* multiplex id */
 270         struct smb_sopt vc_sopt;        /* server options */
 271         int             vc_txmax;       /* max tx/rx packet size */
 272         struct smbiod * vc_iod;
 273         struct smb_slock vc_stlock;
 274         u_int32_t       vc_seqno;       /* my next sequence number */
 275         u_int8_t        *vc_mackey;     /* MAC key */
 276         int             vc_mackeylen;   /* length of MAC key */
 277 };
 278
 279 #define vc_maxmux       vc_sopt.sv_maxmux
 280 #define vc_flags        obj.co_flags
 281
 282
 283 /*
 284  * smb_share structure describes connection to the given SMB share (tree).
 285  * Connection to share is always built on top of the VC.
 286  */
 287
 288 /*
 289  * This lock protects ss_flags
 290  */
 291 #define SMBS_ST_LOCK(ssp)       smb_sl_lock(&(ssp)->ss_stlock)
 292 #define SMBS_ST_LOCKPTR(ssp)    (&(ssp)->ss_stlock)
 293 #define SMBS_ST_INTERLOCK(ssp)  (&(ssp)->ss_stlock)
 294 #define SMBS_ST_UNLOCK(ssp)     smb_sl_unlock(&(ssp)->ss_stlock)
 295
 296 struct smb_share {
 297         struct smb_connobj obj;
 298         char *          ss_name;
 299         u_short         ss_tid;         /* TID */
 300         int             ss_type;        /* share type */
 301         uid_t           ss_uid;         /* user id of connection */
 302         gid_t           ss_grp;         /* group of connection */
 303         mode_t          ss_mode;        /* access mode */
 304         int             ss_vcgenid;
 305         char *          ss_pass;        /* password to a share, can be null */
 306         struct smb_slock ss_stlock;
 307 };
 308
 309 #define ss_flags        obj.co_flags
 310
 311 #define CPTOVC(cp)      ((struct smb_vc*)(cp))
 312 #define VCTOCP(vcp)     (&(vcp)->obj)
 313 #define CPTOSS(cp)      ((struct smb_share*)(cp))
 314 #define SSTOVC(ssp)     CPTOVC(((ssp)->obj.co_parent))
 315 #define SSTOCP(ssp)     (&(ssp)->obj)
 316
 317 struct smb_vcspec {
 318         char *          srvname;
 319         struct sockaddr*sap;
 320         struct sockaddr*lap;
 321         int             flags;
 322         char *          username;
 323         char *          pass;
 324         char *          domain;
 325         mode_t          mode;
 326         mode_t          rights;
 327         uid_t           owner;
 328         gid_t           group;
 329         char *          localcs;
 330         char *          servercs;
 331         struct smb_sharespec *shspec;
 332         struct smb_share *ssp;          /* returned */
 333         /*
 334          * The rest is an internal data
 335          */
 336         struct smb_cred *scred;
 337 };
 338
 339 struct smb_sharespec {
 340         char *          name;
 341         char *          pass;
 342         mode_t          mode;
 343         mode_t          rights;
 344         uid_t           owner;
 345         gid_t           group;
 346         int             stype;
 347         /*
 348          * The rest is an internal data
 349          */
 350         struct smb_cred *scred;
 351 };
 352
 353 /*
 354  * Session level functions
 355  */
 356 int  smb_sm_init(void);
 357 int  smb_sm_done(void);
 358 int  smb_sm_lookup(struct smb_vcspec *vcspec,
 359         struct smb_sharespec *shspec, struct smb_cred *scred,
 360         struct smb_vc **vcpp);
 361
 362 /*
 363  * session level functions
 364  */
 365 int  smb_vc_create(struct smb_vcspec *vcspec,
 366         struct smb_cred *scred, struct smb_vc **vcpp);
 367 int  smb_vc_connect(struct smb_vc *vcp, struct smb_cred *scred);
 368 int  smb_vc_access(struct smb_vc *vcp, struct smb_cred *scred, mode_t mode);
 369 int  smb_vc_get(struct smb_vc *vcp, int flags, struct smb_cred *scred);
 370 void smb_vc_put(struct smb_vc *vcp, struct smb_cred *scred);
 371 void smb_vc_ref(struct smb_vc *vcp);
 372 void smb_vc_rele(struct smb_vc *vcp, struct smb_cred *scred);
 373 int  smb_vc_lock(struct smb_vc *vcp, int flags);
 374 void smb_vc_unlock(struct smb_vc *vcp, int flags);
 375 int  smb_vc_lookupshare(struct smb_vc *vcp, struct smb_sharespec *shspec,
 376         struct smb_cred *scred, struct smb_share **sspp);
 377 const char * smb_vc_getpass(struct smb_vc *vcp);
 378 u_short smb_vc_nextmid(struct smb_vc *vcp);
 379
 380 /*
 381  * share level functions
 382  */
 383 int  smb_share_create(struct smb_vc *vcp, struct smb_sharespec *shspec,
 384         struct smb_cred *scred, struct smb_share **sspp);
 385 int  smb_share_access(struct smb_share *ssp, struct smb_cred *scred, mode_t mode);
 386 void smb_share_ref(struct smb_share *ssp);
 387 void smb_share_rele(struct smb_share *ssp, struct smb_cred *scred);
 388 int  smb_share_get(struct smb_share *ssp, int flags, struct smb_cred *scred);
 389 void smb_share_put(struct smb_share *ssp, struct smb_cred *scred);
 390 int  smb_share_lock(struct smb_share *ssp, int flags);
 391 void smb_share_unlock(struct smb_share *ssp, int flags);
 392 void smb_share_invalidate(struct smb_share *ssp);
 393 int  smb_share_valid(struct smb_share *ssp);
 394 const char * smb_share_getpass(struct smb_share *ssp);
 395
 396 /*
 397  * SMB protocol level functions
 398  */
 399 int  smb_smb_negotiate(struct smb_vc *vcp, struct smb_cred *scred);
 400 int  smb_smb_ssnsetup(struct smb_vc *vcp, struct smb_cred *scred);
 401 int  smb_smb_ssnclose(struct smb_vc *vcp, struct smb_cred *scred);
 402 int  smb_smb_treeconnect(struct smb_share *ssp, struct smb_cred *scred);
 403 int  smb_smb_treedisconnect(struct smb_share *ssp, struct smb_cred *scred);
 404 int  smb_read(struct smb_share *ssp, u_int16_t fid, struct uio *uio,
 405         struct smb_cred *scred);
 406 int  smb_write(struct smb_share *ssp, u_int16_t fid, struct uio *uio,
 407         struct smb_cred *scred);
 408 int  smb_smb_echo(struct smb_vc *vcp, struct smb_cred *scred);
 409
 410 /*
 411  * smbiod thread
 412  */
 413
 414 #define SMBIOD_EV_NEWRQ         0x0001
 415 #define SMBIOD_EV_SHUTDOWN      0x0002
 416 #define SMBIOD_EV_CONNECT       0x0003
 417 #define SMBIOD_EV_DISCONNECT    0x0004
 418 #define SMBIOD_EV_TREECONNECT   0x0005
 419 #define SMBIOD_EV_MASK          0x00ff
 420 #define SMBIOD_EV_SYNC          0x0100
 421 #define SMBIOD_EV_PROCESSING    0x0200
 422
 423 struct smbiod_event {
 424         int     ev_type;
 425         int     ev_error;
 426         void *  ev_ident;
 427         STAILQ_ENTRY(smbiod_event)      ev_link;
 428 };
 429
 430 #define SMBIOD_SHUTDOWN         0x0001
 431
 432 struct smbiod {
 433         int                     iod_id;
 434         int                     iod_flags;
 435         enum smbiod_state       iod_state;
 436         int                     iod_muxcnt;     /* number of active outstanding requests */
 437         int                     iod_sleeptimo;
 438         struct smb_vc *         iod_vc;
 439         struct smb_slock        iod_rqlock;     /* iod_rqlist, iod_muxwant */
 440         struct smb_rqhead       iod_rqlist;     /* list of outstanding requests */
 441         int                     iod_muxwant;
 442         struct thread *         iod_td;
 443         struct smb_cred         iod_scred;
 444         struct smb_slock        iod_evlock;     /* iod_evlist */
 445         STAILQ_HEAD(,smbiod_event) iod_evlist;
 446         struct timespec         iod_lastrqsent;
 447         struct timespec         iod_pingtimo;
 448 };
 449
 450 int  smb_iod_init(void);
 451 int  smb_iod_done(void);
 452 int  smb_iod_create(struct smb_vc *vcp);
 453 int  smb_iod_destroy(struct smbiod *iod);
 454 int  smb_iod_request(struct smbiod *iod, int event, void *ident);
 455 int  smb_iod_addrq(struct smb_rq *rqp);
 456 int  smb_iod_waitrq(struct smb_rq *rqp);
 457 int  smb_iod_removerq(struct smb_rq *rqp);
 458
 459 #endif /* _KERNEL */