FreeBSD/Linux Kernel Cross Reference
sys/netsmb/smb_smb.c
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
33 /*
34 * various SMB requests. Most of the routines merely packs data into mbufs.
35 */
36
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD: src/sys/netsmb/smb_smb.c,v 1.15 2007/06/15 23:49:54 mjacob Exp $");
39
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/malloc.h>
44 #include <sys/proc.h>
45 #include <sys/lock.h>
46 #include <sys/sysctl.h>
47 #include <sys/socket.h>
48 #include <sys/uio.h>
49
50 #include <sys/iconv.h>
51
52 #include <netsmb/smb.h>
53 #include <netsmb/smb_subr.h>
54 #include <netsmb/smb_rq.h>
55 #include <netsmb/smb_conn.h>
56 #include <netsmb/smb_tran.h>
57
58 #include "opt_netsmb.h"
59
60 struct smb_dialect {
61 int d_id;
62 const char * d_name;
63 };
64
65 static struct smb_dialect smb_dialects[] = {
66 {SMB_DIALECT_CORE, "PC NETWORK PROGRAM 1.0"},
67 {SMB_DIALECT_COREPLUS, "MICROSOFT NETWORKS 1.03"},
68 {SMB_DIALECT_LANMAN1_0, "MICROSOFT NETWORKS 3.0"},
69 {SMB_DIALECT_LANMAN1_0, "LANMAN1.0"},
70 {SMB_DIALECT_LANMAN2_0, "LM1.2X002"},
71 {SMB_DIALECT_LANMAN2_0, "Samba"},
72 {SMB_DIALECT_NTLM0_12, "NT LANMAN 1.0"},
73 {SMB_DIALECT_NTLM0_12, "NT LM 0.12"},
74 {-1, NULL}
75 };
76
77 #define SMB_DIALECT_MAX (sizeof(smb_dialects) / sizeof(struct smb_dialect) - 2)
78
79 static u_int32_t
80 smb_vc_maxread(struct smb_vc *vcp)
81 {
82 /*
83 * Specs say up to 64k data bytes, but Windows traffic
84 * uses 60k... no doubt for some good reason.
85 *
86 * Don't exceed the server's buffer size if signatures
87 * are enabled otherwise Windows 2003 chokes. Allow space
88 * for the SMB header & a little bit extra.
89 */
90 if ((vcp->vc_sopt.sv_caps & SMB_CAP_LARGE_READX) &&
91 (vcp->vc_hflags2 & SMB_FLAGS2_SECURITY_SIGNATURE) == 0)
92 return (60*1024);
93 else
94 return (vcp->vc_sopt.sv_maxtx - SMB_HDRLEN - 64);
95 }
96
97 static u_int32_t
98 smb_vc_maxwrite(struct smb_vc *vcp)
99 {
100 /*
101 * See comment above.
102 */
103 if ((vcp->vc_sopt.sv_caps & SMB_CAP_LARGE_WRITEX) &&
104 (vcp->vc_hflags2 & SMB_FLAGS2_SECURITY_SIGNATURE) == 0)
105 return (60*1024);
106 else
107 return (vcp->vc_sopt.sv_maxtx - SMB_HDRLEN - 64);
108 }
109
110 static int
111 smb_smb_nomux(struct smb_vc *vcp, struct smb_cred *scred, const char *name)
112 {
113 if (scred->scr_td->td_proc == vcp->vc_iod->iod_p)
114 return 0;
115 SMBERROR("wrong function called(%s)\n", name);
116 return EINVAL;
117 }
118
119 int
120 smb_smb_negotiate(struct smb_vc *vcp, struct smb_cred *scred)
121 {
122 struct smb_dialect *dp;
123 struct smb_sopt *sp = NULL;
124 struct smb_rq *rqp;
125 struct mbchain *mbp;
126 struct mdchain *mdp;
127 u_int8_t wc, stime[8], sblen;
128 u_int16_t dindex, tw, tw1, swlen, bc;
129 int error, maxqsz;
130
131 if (smb_smb_nomux(vcp, scred, __func__) != 0)
132 return EINVAL;
133 vcp->vc_hflags = 0;
134 vcp->vc_hflags2 = 0;
135 vcp->obj.co_flags &= ~(SMBV_ENCRYPT);
136 sp = &vcp->vc_sopt;
137 bzero(sp, sizeof(struct smb_sopt));
138 error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_NEGOTIATE, scred, &rqp);
139 if (error)
140 return error;
141 smb_rq_getrequest(rqp, &mbp);
142 smb_rq_wstart(rqp);
143 smb_rq_wend(rqp);
144 smb_rq_bstart(rqp);
145 for(dp = smb_dialects; dp->d_id != -1; dp++) {
146 mb_put_uint8(mbp, SMB_DT_DIALECT);
147 smb_put_dstring(mbp, vcp, dp->d_name, SMB_CS_NONE);
148 }
149 smb_rq_bend(rqp);
150 error = smb_rq_simple(rqp);
151 SMBSDEBUG("%d\n", error);
152 if (error)
153 goto bad;
154 smb_rq_getreply(rqp, &mdp);
155 do {
156 error = md_get_uint8(mdp, &wc);
157 if (error)
158 break;
159 error = md_get_uint16le(mdp, &dindex);
160 if (error)
161 break;
162 if (dindex > 7) {
163 SMBERROR("Don't know how to talk with server %s (%d)\n", "xxx", dindex);
164 error = EBADRPC;
165 break;
166 }
167 dp = smb_dialects + dindex;
168 sp->sv_proto = dp->d_id;
169 SMBSDEBUG("Dialect %s (%d, %d)\n", dp->d_name, dindex, wc);
170 error = EBADRPC;
171 if (dp->d_id >= SMB_DIALECT_NTLM0_12) {
172 if (wc != 17)
173 break;
174 md_get_uint8(mdp, &sp->sv_sm);
175 md_get_uint16le(mdp, &sp->sv_maxmux);
176 md_get_uint16le(mdp, &sp->sv_maxvcs);
177 md_get_uint32le(mdp, &sp->sv_maxtx);
178 md_get_uint32le(mdp, &sp->sv_maxraw);
179 md_get_uint32le(mdp, &sp->sv_skey);
180 md_get_uint32le(mdp, &sp->sv_caps);
181 md_get_mem(mdp, stime, 8, MB_MSYSTEM);
182 md_get_uint16le(mdp, (u_int16_t*)&sp->sv_tz);
183 md_get_uint8(mdp, &sblen);
184 if (sblen && (sp->sv_sm & SMB_SM_ENCRYPT)) {
185 if (sblen != SMB_MAXCHALLENGELEN) {
186 SMBERROR("Unexpected length of security blob (%d)\n", sblen);
187 break;
188 }
189 error = md_get_uint16(mdp, &bc);
190 if (error)
191 break;
192 if (sp->sv_caps & SMB_CAP_EXT_SECURITY)
193 md_get_mem(mdp, NULL, 16, MB_MSYSTEM);
194 error = md_get_mem(mdp, vcp->vc_ch, sblen, MB_MSYSTEM);
195 if (error)
196 break;
197 vcp->vc_chlen = sblen;
198 vcp->obj.co_flags |= SMBV_ENCRYPT;
199 }
200 if (sp->sv_sm & SMB_SM_SIGS_REQUIRE)
201 vcp->vc_hflags2 |= SMB_FLAGS2_SECURITY_SIGNATURE;
202 vcp->vc_hflags2 |= SMB_FLAGS2_KNOWS_LONG_NAMES;
203 if (dp->d_id == SMB_DIALECT_NTLM0_12 &&
204 sp->sv_maxtx < 4096 &&
205 (sp->sv_caps & SMB_CAP_NT_SMBS) == 0) {
206 vcp->obj.co_flags |= SMBV_WIN95;
207 SMBSDEBUG("Win95 detected\n");
208 }
209 } else if (dp->d_id > SMB_DIALECT_CORE) {
210 md_get_uint16le(mdp, &tw);
211 sp->sv_sm = tw;
212 md_get_uint16le(mdp, &tw);
213 sp->sv_maxtx = tw;
214 md_get_uint16le(mdp, &sp->sv_maxmux);
215 md_get_uint16le(mdp, &sp->sv_maxvcs);
216 md_get_uint16le(mdp, &tw); /* rawmode */
217 md_get_uint32le(mdp, &sp->sv_skey);
218 if (wc == 13) { /* >= LANMAN1 */
219 md_get_uint16(mdp, &tw); /* time */
220 md_get_uint16(mdp, &tw1); /* date */
221 md_get_uint16le(mdp, (u_int16_t*)&sp->sv_tz);
222 md_get_uint16le(mdp, &swlen);
223 if (swlen > SMB_MAXCHALLENGELEN)
224 break;
225 md_get_uint16(mdp, NULL); /* mbz */
226 if (md_get_uint16(mdp, &bc) != 0)
227 break;
228 if (bc < swlen)
229 break;
230 if (swlen && (sp->sv_sm & SMB_SM_ENCRYPT)) {
231 error = md_get_mem(mdp, vcp->vc_ch, swlen, MB_MSYSTEM);
232 if (error)
233 break;
234 vcp->vc_chlen = swlen;
235 vcp->obj.co_flags |= SMBV_ENCRYPT;
236 }
237 }
238 vcp->vc_hflags2 |= SMB_FLAGS2_KNOWS_LONG_NAMES;
239 } else { /* an old CORE protocol */
240 sp->sv_maxmux = 1;
241 }
242 error = 0;
243 } while (0);
244 if (error == 0) {
245 vcp->vc_maxvcs = sp->sv_maxvcs;
246 if (vcp->vc_maxvcs <= 1) {
247 if (vcp->vc_maxvcs == 0)
248 vcp->vc_maxvcs = 1;
249 }
250 if (sp->sv_maxtx <= 0 || sp->sv_maxtx > 0xffff)
251 sp->sv_maxtx = 1024;
252 else
253 sp->sv_maxtx = min(sp->sv_maxtx,
254 63*1024 + SMB_HDRLEN + 16);
255 SMB_TRAN_GETPARAM(vcp, SMBTP_RCVSZ, &maxqsz);
256 vcp->vc_rxmax = min(smb_vc_maxread(vcp), maxqsz - 1024);
257 SMB_TRAN_GETPARAM(vcp, SMBTP_SNDSZ, &maxqsz);
258 vcp->vc_wxmax = min(smb_vc_maxwrite(vcp), maxqsz - 1024);
259 vcp->vc_txmax = min(sp->sv_maxtx, maxqsz);
260 SMBSDEBUG("TZ = %d\n", sp->sv_tz);
261 SMBSDEBUG("CAPS = %x\n", sp->sv_caps);
262 SMBSDEBUG("MAXMUX = %d\n", sp->sv_maxmux);
263 SMBSDEBUG("MAXVCS = %d\n", sp->sv_maxvcs);
264 SMBSDEBUG("MAXRAW = %d\n", sp->sv_maxraw);
265 SMBSDEBUG("MAXTX = %d\n", sp->sv_maxtx);
266 }
267 bad:
268 smb_rq_done(rqp);
269 return error;
270 }
271
272 int
273 smb_smb_ssnsetup(struct smb_vc *vcp, struct smb_cred *scred)
274 {
275 struct smb_rq *rqp;
276 struct mbchain *mbp;
277 /* u_int8_t wc;
278 u_int16_t tw, tw1;*/
279 smb_uniptr unipp, ntencpass = NULL;
280 char *pp, *up, *pbuf, *encpass;
281 int error, plen, uniplen, ulen, upper;
282
283 upper = 0;
284
285 again:
286
287 vcp->vc_smbuid = SMB_UID_UNKNOWN;
288
289 if (smb_smb_nomux(vcp, scred, __func__) != 0)
290 return EINVAL;
291
292 error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_SESSION_SETUP_ANDX, scred, &rqp);
293 if (error)
294 return error;
295 pbuf = malloc(SMB_MAXPASSWORDLEN + 1, M_SMBTEMP, M_WAITOK);
296 encpass = malloc(24, M_SMBTEMP, M_WAITOK);
297 if (vcp->vc_sopt.sv_sm & SMB_SM_USER) {
298 /*
299 * We try w/o uppercasing first so Samba mixed case
300 * passwords work. If that fails we come back and try
301 * uppercasing to satisfy OS/2 and Windows for Workgroups.
302 */
303 if (upper++) {
304 iconv_convstr(vcp->vc_toupper, pbuf,
305 smb_vc_getpass(vcp)/*, SMB_MAXPASSWORDLEN*/);
306 } else {
307 strncpy(pbuf, smb_vc_getpass(vcp), SMB_MAXPASSWORDLEN);
308 pbuf[SMB_MAXPASSWORDLEN] = '\0';
309 }
310 if (!SMB_UNICODE_STRINGS(vcp))
311 iconv_convstr(vcp->vc_toserver, pbuf, pbuf/*,
312 SMB_MAXPASSWORDLEN*/);
313
314 if (vcp->vc_sopt.sv_sm & SMB_SM_ENCRYPT) {
315 uniplen = plen = 24;
316 smb_encrypt(pbuf, vcp->vc_ch, encpass);
317 ntencpass = malloc(uniplen, M_SMBTEMP, M_WAITOK);
318 if (SMB_UNICODE_STRINGS(vcp)) {
319 strncpy(pbuf, smb_vc_getpass(vcp),
320 SMB_MAXPASSWORDLEN);
321 pbuf[SMB_MAXPASSWORDLEN] = '\0';
322 } else
323 iconv_convstr(vcp->vc_toserver, pbuf,
324 smb_vc_getpass(vcp)/*,
325 SMB_MAXPASSWORDLEN*/);
326 smb_ntencrypt(pbuf, vcp->vc_ch, (u_char*)ntencpass);
327 pp = encpass;
328 unipp = ntencpass;
329 } else {
330 plen = strlen(pbuf) + 1;
331 pp = pbuf;
332 uniplen = plen * 2;
333 ntencpass = malloc(uniplen, M_SMBTEMP, M_WAITOK);
334 smb_strtouni(ntencpass, smb_vc_getpass(vcp));
335 plen--;
336
337 /*
338 * The uniplen is zeroed because Samba cannot deal
339 * with this 2nd cleartext password. This Samba
340 * "bug" is actually a workaround for problems in
341 * Microsoft clients.
342 */
343 uniplen = 0/*-= 2*/;
344 unipp = ntencpass;
345 }
346 } else {
347 /*
348 * In the share security mode password will be used
349 * only in the tree authentication
350 */
351 pp = "";
352 plen = 1;
353 unipp = &smb_unieol;
354 uniplen = 0 /* sizeof(smb_unieol) */;
355 }
356 smb_rq_wstart(rqp);
357 mbp = &rqp->sr_rq;
358 up = vcp->vc_username;
359 ulen = strlen(up) + 1;
360 /*
361 * If userid is null we are attempting anonymous browse login
362 * so passwords must be zero length.
363 */
364 if (ulen == 1)
365 plen = uniplen = 0;
366 mb_put_uint8(mbp, 0xff);
367 mb_put_uint8(mbp, 0);
368 mb_put_uint16le(mbp, 0);
369 mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxtx);
370 mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxmux);
371 mb_put_uint16le(mbp, vcp->vc_number);
372 mb_put_uint32le(mbp, vcp->vc_sopt.sv_skey);
373 mb_put_uint16le(mbp, plen);
374 if (SMB_DIALECT(vcp) < SMB_DIALECT_NTLM0_12) {
375 mb_put_uint32le(mbp, 0);
376 smb_rq_wend(rqp);
377 smb_rq_bstart(rqp);
378 mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
379 smb_put_dstring(mbp, vcp, up, SMB_CS_NONE);
380 } else {
381 mb_put_uint16le(mbp, uniplen);
382 mb_put_uint32le(mbp, 0); /* reserved */
383 mb_put_uint32le(mbp, vcp->obj.co_flags & SMBV_UNICODE ?
384 SMB_CAP_UNICODE : 0);
385 smb_rq_wend(rqp);
386 smb_rq_bstart(rqp);
387 mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
388 mb_put_mem(mbp, (caddr_t)unipp, uniplen, MB_MSYSTEM);
389 smb_put_dstring(mbp, vcp, up, SMB_CS_NONE); /* AccountName */
390 smb_put_dstring(mbp, vcp, vcp->vc_domain, SMB_CS_NONE); /* PrimaryDomain */
391 smb_put_dstring(mbp, vcp, "FreeBSD", SMB_CS_NONE); /* Client's OS */
392 smb_put_dstring(mbp, vcp, "NETSMB", SMB_CS_NONE); /* Client name */
393 }
394 smb_rq_bend(rqp);
395 if (ntencpass)
396 free(ntencpass, M_SMBTEMP);
397 if (vcp->vc_hflags2 & SMB_FLAGS2_SECURITY_SIGNATURE)
398 smb_calcmackey(vcp);
399 error = smb_rq_simple(rqp);
400 SMBSDEBUG("%d\n", error);
401 if (error) {
402 if (rqp->sr_errclass == ERRDOS && rqp->sr_serror == ERRnoaccess)
403 error = EAUTH;
404 goto bad;
405 }
406 vcp->vc_smbuid = rqp->sr_rpuid;
407 bad:
408 free(encpass, M_SMBTEMP);
409 free(pbuf, M_SMBTEMP);
410 smb_rq_done(rqp);
411 if (error && upper == 1 && vcp->vc_sopt.sv_sm & SMB_SM_USER)
412 goto again;
413 return error;
414 }
415
416 int
417 smb_smb_ssnclose(struct smb_vc *vcp, struct smb_cred *scred)
418 {
419 struct smb_rq *rqp;
420 struct mbchain *mbp;
421 int error;
422
423 if (vcp->vc_smbuid == SMB_UID_UNKNOWN)
424 return 0;
425
426 if (smb_smb_nomux(vcp, scred, __func__) != 0)
427 return EINVAL;
428
429 error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_LOGOFF_ANDX, scred, &rqp);
430 if (error)
431 return error;
432 mbp = &rqp->sr_rq;
433 smb_rq_wstart(rqp);
434 mb_put_uint8(mbp, 0xff);
435 mb_put_uint8(mbp, 0);
436 mb_put_uint16le(mbp, 0);
437 smb_rq_wend(rqp);
438 smb_rq_bstart(rqp);
439 smb_rq_bend(rqp);
440 error = smb_rq_simple(rqp);
441 SMBSDEBUG("%d\n", error);
442 smb_rq_done(rqp);
443 return error;
444 }
445
446 static char smb_any_share[] = "?????";
447
448 static char *
449 smb_share_typename(int stype)
450 {
451 char *pp;
452
453 switch (stype) {
454 case SMB_ST_DISK:
455 pp = "A:";
456 break;
457 case SMB_ST_PRINTER:
458 pp = smb_any_share; /* can't use LPT: here... */
459 break;
460 case SMB_ST_PIPE:
461 pp = "IPC";
462 break;
463 case SMB_ST_COMM:
464 pp = "COMM";
465 break;
466 case SMB_ST_ANY:
467 default:
468 pp = smb_any_share;
469 break;
470 }
471 return pp;
472 }
473
474 int
475 smb_smb_treeconnect(struct smb_share *ssp, struct smb_cred *scred)
476 {
477 struct smb_vc *vcp;
478 struct smb_rq rq, *rqp = &rq;
479 struct mbchain *mbp;
480 char *pp, *pbuf, *encpass;
481 int error, plen, caseopt, upper;
482
483 upper = 0;
484
485 again:
486
487 #if 0
488 /* Disable Unicode for SMB_COM_TREE_CONNECT_ANDX requests */
489 if (SSTOVC(ssp)->vc_hflags2 & SMB_FLAGS2_UNICODE) {
490 vcp = SSTOVC(ssp);
491 if (vcp->vc_toserver) {
492 iconv_close(vcp->vc_toserver);
493 /* Use NULL until UTF-8 -> ASCII works */
494 vcp->vc_toserver = NULL;
495 }
496 if (vcp->vc_tolocal) {
497 iconv_close(vcp->vc_tolocal);
498 /* Use NULL until ASCII -> UTF-8 works*/
499 vcp->vc_tolocal = NULL;
500 }
501 vcp->vc_hflags2 &= ~SMB_FLAGS2_UNICODE;
502 }
503 #endif
504
505 ssp->ss_tid = SMB_TID_UNKNOWN;
506 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_TREE_CONNECT_ANDX, scred, &rqp);
507 if (error)
508 return error;
509 vcp = rqp->sr_vc;
510 caseopt = SMB_CS_NONE;
511 if (vcp->vc_sopt.sv_sm & SMB_SM_USER) {
512 plen = 1;
513 pp = "";
514 pbuf = NULL;
515 encpass = NULL;
516 } else {
517 pbuf = malloc(SMB_MAXPASSWORDLEN + 1, M_SMBTEMP, M_WAITOK);
518 encpass = malloc(24, M_SMBTEMP, M_WAITOK);
519 /*
520 * We try w/o uppercasing first so Samba mixed case
521 * passwords work. If that fails we come back and try
522 * uppercasing to satisfy OS/2 and Windows for Workgroups.
523 */
524 if (upper++) {
525 iconv_convstr(vcp->vc_toupper, pbuf,
526 smb_share_getpass(ssp)/*,
527 SMB_MAXPASSWORDLEN*/);
528 } else {
529 strncpy(pbuf, smb_share_getpass(ssp),
530 SMB_MAXPASSWORDLEN);
531 pbuf[SMB_MAXPASSWORDLEN] = '\0';
532 }
533 if (vcp->vc_sopt.sv_sm & SMB_SM_ENCRYPT) {
534 plen = 24;
535 smb_encrypt(pbuf, vcp->vc_ch, encpass);
536 pp = encpass;
537 } else {
538 plen = strlen(pbuf) + 1;
539 pp = pbuf;
540 }
541 }
542 mbp = &rqp->sr_rq;
543 smb_rq_wstart(rqp);
544 mb_put_uint8(mbp, 0xff);
545 mb_put_uint8(mbp, 0);
546 mb_put_uint16le(mbp, 0);
547 mb_put_uint16le(mbp, 0); /* Flags */
548 mb_put_uint16le(mbp, plen);
549 smb_rq_wend(rqp);
550 smb_rq_bstart(rqp);
551 mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
552 smb_put_dmem(mbp, vcp, "\\\\", 2, caseopt);
553 pp = vcp->vc_srvname;
554 smb_put_dmem(mbp, vcp, pp, strlen(pp), caseopt);
555 smb_put_dmem(mbp, vcp, "\\", 1, caseopt);
556 pp = ssp->ss_name;
557 smb_put_dstring(mbp, vcp, pp, caseopt);
558 pp = smb_share_typename(ssp->ss_type);
559 smb_put_dstring(mbp, vcp, pp, caseopt);
560 smb_rq_bend(rqp);
561 error = smb_rq_simple(rqp);
562 SMBSDEBUG("%d\n", error);
563 if (error)
564 goto bad;
565 ssp->ss_tid = rqp->sr_rptid;
566 ssp->ss_vcgenid = vcp->vc_genid;
567 ssp->ss_flags |= SMBS_CONNECTED;
568 bad:
569 if (encpass)
570 free(encpass, M_SMBTEMP);
571 if (pbuf)
572 free(pbuf, M_SMBTEMP);
573 smb_rq_done(rqp);
574 if (error && upper == 1)
575 goto again;
576 return error;
577 }
578
579 int
580 smb_smb_treedisconnect(struct smb_share *ssp, struct smb_cred *scred)
581 {
582 struct smb_rq *rqp;
583 struct mbchain *mbp;
584 int error;
585
586 if (ssp->ss_tid == SMB_TID_UNKNOWN)
587 return 0;
588 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_TREE_DISCONNECT, scred, &rqp);
589 if (error)
590 return error;
591 mbp = &rqp->sr_rq;
592 smb_rq_wstart(rqp);
593 smb_rq_wend(rqp);
594 smb_rq_bstart(rqp);
595 smb_rq_bend(rqp);
596 error = smb_rq_simple(rqp);
597 SMBSDEBUG("%d\n", error);
598 smb_rq_done(rqp);
599 ssp->ss_tid = SMB_TID_UNKNOWN;
600 return error;
601 }
602
603 static __inline int
604 smb_smb_readx(struct smb_share *ssp, u_int16_t fid, int *len, int *rresid,
605 struct uio *uio, struct smb_cred *scred)
606 {
607 struct smb_rq *rqp;
608 struct mbchain *mbp;
609 struct mdchain *mdp;
610 u_int8_t wc;
611 int error;
612 u_int16_t residhi, residlo, off, doff;
613 u_int32_t resid;
614
615 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_READ_ANDX, scred, &rqp);
616 if (error)
617 return error;
618 smb_rq_getrequest(rqp, &mbp);
619 smb_rq_wstart(rqp);
620 mb_put_uint8(mbp, 0xff); /* no secondary command */
621 mb_put_uint8(mbp, 0); /* MBZ */
622 mb_put_uint16le(mbp, 0); /* offset to secondary */
623 mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
624 mb_put_uint32le(mbp, uio->uio_offset);
625 *len = min(SSTOVC(ssp)->vc_rxmax, *len);
626 mb_put_uint16le(mbp, *len); /* MaxCount */
627 mb_put_uint16le(mbp, *len); /* MinCount (only indicates blocking) */
628 mb_put_uint32le(mbp, (unsigned)*len >> 16); /* MaxCountHigh */
629 mb_put_uint16le(mbp, *len); /* Remaining ("obsolete") */
630 mb_put_uint32le(mbp, uio->uio_offset >> 32); /* OffsetHigh */
631 smb_rq_wend(rqp);
632 smb_rq_bstart(rqp);
633 smb_rq_bend(rqp);
634 do {
635 error = smb_rq_simple(rqp);
636 if (error)
637 break;
638 smb_rq_getreply(rqp, &mdp);
639 off = SMB_HDRLEN;
640 md_get_uint8(mdp, &wc);
641 off++;
642 if (wc != 12) {
643 error = EBADRPC;
644 break;
645 }
646 md_get_uint8(mdp, NULL);
647 off++;
648 md_get_uint8(mdp, NULL);
649 off++;
650 md_get_uint16le(mdp, NULL);
651 off += 2;
652 md_get_uint16le(mdp, NULL);
653 off += 2;
654 md_get_uint16le(mdp, NULL); /* data compaction mode */
655 off += 2;
656 md_get_uint16le(mdp, NULL);
657 off += 2;
658 md_get_uint16le(mdp, &residlo);
659 off += 2;
660 md_get_uint16le(mdp, &doff); /* data offset */
661 off += 2;
662 md_get_uint16le(mdp, &residhi);
663 off += 2;
664 resid = (residhi << 16) | residlo;
665 md_get_mem(mdp, NULL, 4 * 2, MB_MSYSTEM);
666 off += 4*2;
667 md_get_uint16le(mdp, NULL); /* ByteCount */
668 off += 2;
669 if (doff > off) /* pad byte(s)? */
670 md_get_mem(mdp, NULL, doff - off, MB_MSYSTEM);
671 if (resid == 0) {
672 *rresid = resid;
673 break;
674 }
675 error = md_get_uio(mdp, uio, resid);
676 if (error)
677 break;
678 *rresid = resid;
679 } while(0);
680 smb_rq_done(rqp);
681 return (error);
682 }
683
684 static __inline int
685 smb_smb_writex(struct smb_share *ssp, u_int16_t fid, int *len, int *rresid,
686 struct uio *uio, struct smb_cred *scred)
687 {
688 struct smb_rq *rqp;
689 struct mbchain *mbp;
690 struct mdchain *mdp;
691 int error;
692 u_int8_t wc;
693 u_int16_t resid;
694
695 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_WRITE_ANDX, scred, &rqp);
696 if (error)
697 return (error);
698 smb_rq_getrequest(rqp, &mbp);
699 smb_rq_wstart(rqp);
700 mb_put_uint8(mbp, 0xff); /* no secondary command */
701 mb_put_uint8(mbp, 0); /* MBZ */
702 mb_put_uint16le(mbp, 0); /* offset to secondary */
703 mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
704 mb_put_uint32le(mbp, uio->uio_offset);
705 mb_put_uint32le(mbp, 0); /* MBZ (timeout) */
706 mb_put_uint16le(mbp, 0); /* !write-thru */
707 mb_put_uint16le(mbp, 0);
708 *len = min(SSTOVC(ssp)->vc_wxmax, *len);
709 mb_put_uint16le(mbp, (unsigned)*len >> 16);
710 mb_put_uint16le(mbp, *len);
711 mb_put_uint16le(mbp, 64); /* data offset from header start */
712 mb_put_uint32le(mbp, uio->uio_offset >> 32); /* OffsetHigh */
713 smb_rq_wend(rqp);
714 smb_rq_bstart(rqp);
715 do {
716 mb_put_uint8(mbp, 0xee); /* mimic xp pad byte! */
717 error = mb_put_uio(mbp, uio, *len);
718 if (error)
719 break;
720 smb_rq_bend(rqp);
721 error = smb_rq_simple(rqp);
722 if (error)
723 break;
724 smb_rq_getreply(rqp, &mdp);
725 md_get_uint8(mdp, &wc);
726 if (wc != 6) {
727 error = EBADRPC;
728 break;
729 }
730 md_get_uint8(mdp, NULL);
731 md_get_uint8(mdp, NULL);
732 md_get_uint16le(mdp, NULL);
733 md_get_uint16le(mdp, &resid);
734 *rresid = resid;
735 } while(0);
736
737 smb_rq_done(rqp);
738 return (error);
739 }
740
741 static __inline int
742 smb_smb_read(struct smb_share *ssp, u_int16_t fid,
743 int *len, int *rresid, struct uio *uio, struct smb_cred *scred)
744 {
745 struct smb_rq *rqp;
746 struct mbchain *mbp;
747 struct mdchain *mdp;
748 u_int16_t resid, bc;
749 u_int8_t wc;
750 int error, rlen, blksz;
751
752 if (SSTOVC(ssp)->vc_sopt.sv_caps & SMB_CAP_LARGE_READX)
753 return (smb_smb_readx(ssp, fid, len, rresid, uio, scred));
754
755 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_READ, scred, &rqp);
756 if (error)
757 return error;
758
759 blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 16;
760 rlen = *len = min(blksz, *len);
761
762 smb_rq_getrequest(rqp, &mbp);
763 smb_rq_wstart(rqp);
764 mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
765 mb_put_uint16le(mbp, rlen);
766 mb_put_uint32le(mbp, uio->uio_offset);
767 mb_put_uint16le(mbp, min(uio->uio_resid, 0xffff));
768 smb_rq_wend(rqp);
769 smb_rq_bstart(rqp);
770 smb_rq_bend(rqp);
771 do {
772 error = smb_rq_simple(rqp);
773 if (error)
774 break;
775 smb_rq_getreply(rqp, &mdp);
776 md_get_uint8(mdp, &wc);
777 if (wc != 5) {
778 error = EBADRPC;
779 break;
780 }
781 md_get_uint16le(mdp, &resid);
782 md_get_mem(mdp, NULL, 4 * 2, MB_MSYSTEM);
783 md_get_uint16le(mdp, &bc);
784 md_get_uint8(mdp, NULL); /* ignore buffer type */
785 md_get_uint16le(mdp, &resid);
786 if (resid == 0) {
787 *rresid = resid;
788 break;
789 }
790 error = md_get_uio(mdp, uio, resid);
791 if (error)
792 break;
793 *rresid = resid;
794 } while(0);
795 smb_rq_done(rqp);
796 return error;
797 }
798
799 int
800 smb_read(struct smb_share *ssp, u_int16_t fid, struct uio *uio,
801 struct smb_cred *scred)
802 {
803 int tsize, len, resid;
804 int error = 0;
805
806 tsize = uio->uio_resid;
807 while (tsize > 0) {
808 resid = 0;
809 len = tsize;
810 error = smb_smb_read(ssp, fid, &len, &resid, uio, scred);
811 if (error)
812 break;
813 tsize -= resid;
814 if (resid < len)
815 break;
816 }
817 return error;
818 }
819
820 static __inline int
821 smb_smb_write(struct smb_share *ssp, u_int16_t fid, int *len, int *rresid,
822 struct uio *uio, struct smb_cred *scred)
823 {
824 struct smb_rq *rqp;
825 struct mbchain *mbp;
826 struct mdchain *mdp;
827 u_int16_t resid;
828 u_int8_t wc;
829 int error, blksz;
830
831 if (*len && SSTOVC(ssp)->vc_sopt.sv_caps & SMB_CAP_LARGE_WRITEX)
832 return (smb_smb_writex(ssp, fid, len, rresid, uio, scred));
833
834 blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 16;
835 if (blksz > 0xffff)
836 blksz = 0xffff;
837
838 resid = *len = min(blksz, *len);
839
840 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_WRITE, scred, &rqp);
841 if (error)
842 return error;
843 smb_rq_getrequest(rqp, &mbp);
844 smb_rq_wstart(rqp);
845 mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
846 mb_put_uint16le(mbp, resid);
847 mb_put_uint32le(mbp, uio->uio_offset);
848 mb_put_uint16le(mbp, min(uio->uio_resid, 0xffff));
849 smb_rq_wend(rqp);
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