2 * Copyright (c) 2000-2001 Boris Popov
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
34 * various SMB requests. Most of the routines merely packs data into mbufs.
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/malloc.h>
46 #include <sys/sysctl.h>
47 #include <sys/socket.h>
50 #include <sys/iconv.h>
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>
58 #include "opt_netsmb.h"
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"},
77 #define SMB_DIALECT_MAX (sizeof(smb_dialects) / sizeof(struct smb_dialect) - 2)
80 smb_vc_maxread(struct smb_vc *vcp)
83 * Specs say up to 64k data bytes, but Windows traffic
84 * uses 60k... no doubt for some good reason.
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.
90 if ((vcp->vc_sopt.sv_caps & SMB_CAP_LARGE_READX) &&
91 (vcp->vc_hflags2 & SMB_FLAGS2_SECURITY_SIGNATURE) == 0)
94 return (vcp->vc_sopt.sv_maxtx - SMB_HDRLEN - 64);
98 smb_vc_maxwrite(struct smb_vc *vcp)
103 if ((vcp->vc_sopt.sv_caps & SMB_CAP_LARGE_WRITEX) &&
104 (vcp->vc_hflags2 & SMB_FLAGS2_SECURITY_SIGNATURE) == 0)
107 return (vcp->vc_sopt.sv_maxtx - SMB_HDRLEN - 64);
111 smb_smb_nomux(struct smb_vc *vcp, struct smb_cred *scred, const char *name)
113 if (scred->scr_td->td_proc == vcp->vc_iod->iod_p)
115 SMBERROR("wrong function called(%s)\n", name);
120 smb_smb_negotiate(struct smb_vc *vcp, struct smb_cred *scred)
122 struct smb_dialect *dp;
123 struct smb_sopt *sp = NULL;
127 u_int8_t wc, stime[8], sblen;
128 u_int16_t dindex, tw, tw1, swlen, bc;
130 int unicode = SMB_UNICODE_STRINGS(vcp);
131 void * servercharset = vcp->vc_toserver;
132 void * localcharset = vcp->vc_tolocal;
134 if (smb_smb_nomux(vcp, scred, __func__) != 0)
136 /* Disable Unicode for SMB_COM_NEGOTIATE requests */
138 vcp->vc_toserver = vcp->vc_cp_toserver;
139 vcp->vc_tolocal = vcp->vc_cp_tolocal;
143 vcp->obj.co_flags &= ~(SMBV_ENCRYPT);
145 bzero(sp, sizeof(struct smb_sopt));
146 error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_NEGOTIATE, scred, &rqp);
149 smb_rq_getrequest(rqp, &mbp);
153 for(dp = smb_dialects; dp->d_id != -1; dp++) {
154 mb_put_uint8(mbp, SMB_DT_DIALECT);
155 smb_put_dstring(mbp, vcp, dp->d_name, SMB_CS_NONE);
158 error = smb_rq_simple(rqp);
159 SMBSDEBUG("%d\n", error);
162 smb_rq_getreply(rqp, &mdp);
164 error = md_get_uint8(mdp, &wc);
167 error = md_get_uint16le(mdp, &dindex);
171 SMBERROR("Don't know how to talk with server %s (%d)\n", "xxx", dindex);
175 dp = smb_dialects + dindex;
176 sp->sv_proto = dp->d_id;
177 SMBSDEBUG("Dialect %s (%d, %d)\n", dp->d_name, dindex, wc);
179 if (dp->d_id >= SMB_DIALECT_NTLM0_12) {
182 md_get_uint8(mdp, &sp->sv_sm);
183 md_get_uint16le(mdp, &sp->sv_maxmux);
184 md_get_uint16le(mdp, &sp->sv_maxvcs);
185 md_get_uint32le(mdp, &sp->sv_maxtx);
186 md_get_uint32le(mdp, &sp->sv_maxraw);
187 md_get_uint32le(mdp, &sp->sv_skey);
188 md_get_uint32le(mdp, &sp->sv_caps);
189 md_get_mem(mdp, stime, 8, MB_MSYSTEM);
190 md_get_uint16le(mdp, (u_int16_t*)&sp->sv_tz);
191 md_get_uint8(mdp, &sblen);
192 if (sblen && (sp->sv_sm & SMB_SM_ENCRYPT)) {
193 if (sblen != SMB_MAXCHALLENGELEN) {
194 SMBERROR("Unexpected length of security blob (%d)\n", sblen);
197 error = md_get_uint16le(mdp, &bc);
200 if (sp->sv_caps & SMB_CAP_EXT_SECURITY)
201 md_get_mem(mdp, NULL, 16, MB_MSYSTEM);
202 error = md_get_mem(mdp, vcp->vc_ch, sblen, MB_MSYSTEM);
205 vcp->vc_chlen = sblen;
206 vcp->obj.co_flags |= SMBV_ENCRYPT;
208 if (sp->sv_sm & SMB_SM_SIGS_REQUIRE)
209 vcp->vc_hflags2 |= SMB_FLAGS2_SECURITY_SIGNATURE;
210 if (vcp->vc_ucs_toserver &&
211 sp->sv_caps & SMB_CAP_UNICODE) {
215 vcp->obj.co_flags |= SMBV_UNICODE;
217 vcp->vc_hflags2 |= SMB_FLAGS2_KNOWS_LONG_NAMES;
218 if (dp->d_id == SMB_DIALECT_NTLM0_12 &&
219 sp->sv_maxtx < 4096 &&
220 (sp->sv_caps & SMB_CAP_NT_SMBS) == 0) {
221 vcp->obj.co_flags |= SMBV_WIN95;
222 SMBSDEBUG("Win95 detected\n");
227 vcp->vc_hflags2 &= ~(SMB_FLAGS2_EXT_SEC|SMB_FLAGS2_DFS|
228 SMB_FLAGS2_ERR_STATUS|SMB_FLAGS2_UNICODE);
230 if (dp->d_id > SMB_DIALECT_CORE) {
231 md_get_uint16le(mdp, &tw);
233 md_get_uint16le(mdp, &tw);
235 md_get_uint16le(mdp, &sp->sv_maxmux);
236 md_get_uint16le(mdp, &sp->sv_maxvcs);
237 md_get_uint16le(mdp, &tw); /* rawmode */
238 md_get_uint32le(mdp, &sp->sv_skey);
239 if (wc == 13) { /* >= LANMAN1 */
240 md_get_uint16(mdp, &tw); /* time */
241 md_get_uint16(mdp, &tw1); /* date */
242 md_get_uint16le(mdp, (u_int16_t*)&sp->sv_tz);
243 md_get_uint16le(mdp, &swlen);
244 if (swlen > SMB_MAXCHALLENGELEN)
246 md_get_uint16(mdp, NULL); /* mbz */
247 if (md_get_uint16le(mdp, &bc) != 0)
251 if (swlen && (sp->sv_sm & SMB_SM_ENCRYPT)) {
252 error = md_get_mem(mdp, vcp->vc_ch, swlen, MB_MSYSTEM);
255 vcp->vc_chlen = swlen;
256 vcp->obj.co_flags |= SMBV_ENCRYPT;
259 vcp->vc_hflags2 |= SMB_FLAGS2_KNOWS_LONG_NAMES;
260 } else { /* an old CORE protocol */
266 vcp->vc_maxvcs = sp->sv_maxvcs;
267 if (vcp->vc_maxvcs <= 1) {
268 if (vcp->vc_maxvcs == 0)
271 if (sp->sv_maxtx <= 0 || sp->sv_maxtx > 0xffff)
274 sp->sv_maxtx = min(sp->sv_maxtx,
275 63*1024 + SMB_HDRLEN + 16);
276 SMB_TRAN_GETPARAM(vcp, SMBTP_RCVSZ, &maxqsz);
277 vcp->vc_rxmax = min(smb_vc_maxread(vcp), maxqsz - 1024);
278 SMB_TRAN_GETPARAM(vcp, SMBTP_SNDSZ, &maxqsz);
279 vcp->vc_wxmax = min(smb_vc_maxwrite(vcp), maxqsz - 1024);
280 vcp->vc_txmax = min(sp->sv_maxtx, maxqsz);
281 SMBSDEBUG("TZ = %d\n", sp->sv_tz);
282 SMBSDEBUG("CAPS = %x\n", sp->sv_caps);
283 SMBSDEBUG("MAXMUX = %d\n", sp->sv_maxmux);
284 SMBSDEBUG("MAXVCS = %d\n", sp->sv_maxvcs);
285 SMBSDEBUG("MAXRAW = %d\n", sp->sv_maxraw);
286 SMBSDEBUG("MAXTX = %d\n", sp->sv_maxtx);
289 /* Restore Unicode conversion state */
291 vcp->vc_toserver = servercharset;
292 vcp->vc_tolocal = localcharset;
293 vcp->vc_hflags2 |= SMB_FLAGS2_UNICODE;
300 smb_smb_ssnsetup(struct smb_vc *vcp, struct smb_cred *scred)
306 smb_uniptr unipp, ntencpass = NULL;
307 char *pp, *up, *pbuf, *encpass;
308 int error, plen, uniplen, ulen, upper;
313 if (vcp->obj.co_flags & SMBV_UNICODE)
314 caps |= SMB_CAP_UNICODE;
318 vcp->vc_smbuid = SMB_UID_UNKNOWN;
320 if (smb_smb_nomux(vcp, scred, __func__) != 0)
323 error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_SESSION_SETUP_ANDX, scred, &rqp);
326 pbuf = malloc(SMB_MAXPASSWORDLEN + 1, M_SMBTEMP, M_WAITOK);
327 encpass = malloc(24, M_SMBTEMP, M_WAITOK);
328 if (vcp->vc_sopt.sv_sm & SMB_SM_USER) {
330 * We try w/o uppercasing first so Samba mixed case
331 * passwords work. If that fails we come back and try
332 * uppercasing to satisfy OS/2 and Windows for Workgroups.
335 iconv_convstr(vcp->vc_toupper, pbuf,
336 smb_vc_getpass(vcp)/*, SMB_MAXPASSWORDLEN*/);
338 strncpy(pbuf, smb_vc_getpass(vcp), SMB_MAXPASSWORDLEN);
339 pbuf[SMB_MAXPASSWORDLEN] = '\0';
341 if (!SMB_UNICODE_STRINGS(vcp))
342 iconv_convstr(vcp->vc_toserver, pbuf, pbuf/*,
343 SMB_MAXPASSWORDLEN*/);
345 if (vcp->vc_sopt.sv_sm & SMB_SM_ENCRYPT) {
347 smb_encrypt(pbuf, vcp->vc_ch, encpass);
348 ntencpass = malloc(uniplen, M_SMBTEMP, M_WAITOK);
349 if (SMB_UNICODE_STRINGS(vcp)) {
350 strncpy(pbuf, smb_vc_getpass(vcp),
352 pbuf[SMB_MAXPASSWORDLEN] = '\0';
354 iconv_convstr(vcp->vc_toserver, pbuf,
355 smb_vc_getpass(vcp)/*,
356 SMB_MAXPASSWORDLEN*/);
357 smb_ntencrypt(pbuf, vcp->vc_ch, (u_char*)ntencpass);
361 plen = strlen(pbuf) + 1;
364 ntencpass = malloc(uniplen, M_SMBTEMP, M_WAITOK);
365 smb_strtouni(ntencpass, smb_vc_getpass(vcp));
369 * The uniplen is zeroed because Samba cannot deal
370 * with this 2nd cleartext password. This Samba
371 * "bug" is actually a workaround for problems in
379 * In the share security mode password will be used
380 * only in the tree authentication
385 uniplen = 0 /* sizeof(smb_unieol) */;
389 up = vcp->vc_username;
390 ulen = strlen(up) + 1;
392 * If userid is null we are attempting anonymous browse login
393 * so passwords must be zero length.
397 mb_put_uint8(mbp, 0xff);
398 mb_put_uint8(mbp, 0);
399 mb_put_uint16le(mbp, 0);
400 mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxtx);
401 mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxmux);
402 mb_put_uint16le(mbp, vcp->vc_number);
403 mb_put_uint32le(mbp, vcp->vc_sopt.sv_skey);
404 mb_put_uint16le(mbp, plen);
405 if (SMB_DIALECT(vcp) < SMB_DIALECT_NTLM0_12) {
406 mb_put_uint32le(mbp, 0);
409 mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
410 smb_put_dstring(mbp, vcp, up, SMB_CS_NONE);
412 mb_put_uint16le(mbp, uniplen);
413 mb_put_uint32le(mbp, 0); /* reserved */
414 mb_put_uint32le(mbp, caps);
417 mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
418 mb_put_mem(mbp, (caddr_t)unipp, uniplen, MB_MSYSTEM);
419 smb_put_dstring(mbp, vcp, up, SMB_CS_NONE); /* AccountName */
420 smb_put_dstring(mbp, vcp, vcp->vc_domain, SMB_CS_NONE); /* PrimaryDomain */
421 smb_put_dstring(mbp, vcp, "FreeBSD", SMB_CS_NONE); /* Client's OS */
422 smb_put_dstring(mbp, vcp, "NETSMB", SMB_CS_NONE); /* Client name */
426 free(ntencpass, M_SMBTEMP);
427 if (vcp->vc_hflags2 & SMB_FLAGS2_SECURITY_SIGNATURE)
429 error = smb_rq_simple(rqp);
430 SMBSDEBUG("%d\n", error);
432 if (rqp->sr_errclass == ERRDOS && rqp->sr_serror == ERRnoaccess)
436 vcp->vc_smbuid = rqp->sr_rpuid;
438 free(encpass, M_SMBTEMP);
439 free(pbuf, M_SMBTEMP);
441 if (error && upper == 1 && vcp->vc_sopt.sv_sm & SMB_SM_USER)
447 smb_smb_ssnclose(struct smb_vc *vcp, struct smb_cred *scred)
453 if (vcp->vc_smbuid == SMB_UID_UNKNOWN)
456 if (smb_smb_nomux(vcp, scred, __func__) != 0)
459 error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_LOGOFF_ANDX, scred, &rqp);
464 mb_put_uint8(mbp, 0xff);
465 mb_put_uint8(mbp, 0);
466 mb_put_uint16le(mbp, 0);
470 error = smb_rq_simple(rqp);
471 SMBSDEBUG("%d\n", error);
476 static char smb_any_share[] = "?????";
479 smb_share_typename(int stype)
488 pp = smb_any_share; /* can't use LPT: here... */
505 smb_smb_treeconnect(struct smb_share *ssp, struct smb_cred *scred)
508 struct smb_rq rq, *rqp = &rq;
510 char *pp, *pbuf, *encpass;
511 int error, plen, caseopt, upper;
516 /* Disable Unicode for SMB_COM_TREE_CONNECT_ANDX requests */
517 if (SSTOVC(ssp)->vc_hflags2 & SMB_FLAGS2_UNICODE) {
519 vcp->vc_toserver = vcp->vc_cp_toserver;
520 vcp->vc_tolocal = vcp->vc_cp_tolocal;
521 vcp->vc_hflags2 &= ~SMB_FLAGS2_UNICODE;
524 ssp->ss_tid = SMB_TID_UNKNOWN;
525 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_TREE_CONNECT_ANDX, scred, &rqp);
529 caseopt = SMB_CS_NONE;
530 if (vcp->vc_sopt.sv_sm & SMB_SM_USER) {
536 pbuf = malloc(SMB_MAXPASSWORDLEN + 1, M_SMBTEMP, M_WAITOK);
537 encpass = malloc(24, M_SMBTEMP, M_WAITOK);
539 * We try w/o uppercasing first so Samba mixed case
540 * passwords work. If that fails we come back and try
541 * uppercasing to satisfy OS/2 and Windows for Workgroups.
544 iconv_convstr(vcp->vc_toupper, pbuf,
545 smb_share_getpass(ssp)/*,
546 SMB_MAXPASSWORDLEN*/);
548 strncpy(pbuf, smb_share_getpass(ssp),
550 pbuf[SMB_MAXPASSWORDLEN] = '\0';
552 if (vcp->vc_sopt.sv_sm & SMB_SM_ENCRYPT) {
554 smb_encrypt(pbuf, vcp->vc_ch, encpass);
557 plen = strlen(pbuf) + 1;
563 mb_put_uint8(mbp, 0xff);
564 mb_put_uint8(mbp, 0);
565 mb_put_uint16le(mbp, 0);
566 mb_put_uint16le(mbp, 0); /* Flags */
567 mb_put_uint16le(mbp, plen);
570 mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
571 smb_put_dmem(mbp, vcp, "\\\\", 2, caseopt);
572 pp = vcp->vc_srvname;
573 smb_put_dmem(mbp, vcp, pp, strlen(pp), caseopt);
574 smb_put_dmem(mbp, vcp, "\\", 1, caseopt);
576 smb_put_dstring(mbp, vcp, pp, caseopt);
577 pp = smb_share_typename(ssp->ss_type);
578 smb_put_dstring(mbp, vcp, pp, caseopt);
580 error = smb_rq_simple(rqp);
581 SMBSDEBUG("%d\n", error);
584 ssp->ss_tid = rqp->sr_rptid;
585 ssp->ss_vcgenid = vcp->vc_genid;
586 ssp->ss_flags |= SMBS_CONNECTED;
588 * If the server can speak Unicode then switch
589 * our converters to do Unicode <--> Local
591 if (vcp->obj.co_flags & SMBV_UNICODE) {
592 vcp->vc_toserver = vcp->vc_ucs_toserver;
593 vcp->vc_tolocal = vcp->vc_ucs_tolocal;
594 vcp->vc_hflags2 |= SMB_FLAGS2_UNICODE;
598 free(encpass, M_SMBTEMP);
600 free(pbuf, M_SMBTEMP);
602 if (error && upper == 1)
608 smb_smb_treedisconnect(struct smb_share *ssp, struct smb_cred *scred)
614 if (ssp->ss_tid == SMB_TID_UNKNOWN)
616 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_TREE_DISCONNECT, scred, &rqp);
624 error = smb_rq_simple(rqp);
625 SMBSDEBUG("%d\n", error);
627 ssp->ss_tid = SMB_TID_UNKNOWN;
632 smb_smb_readx(struct smb_share *ssp, u_int16_t fid, int *len, int *rresid,
633 struct uio *uio, struct smb_cred *scred)
640 u_int16_t residhi, residlo, off, doff;
643 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_READ_ANDX, scred, &rqp);
646 smb_rq_getrequest(rqp, &mbp);
648 mb_put_uint8(mbp, 0xff); /* no secondary command */
649 mb_put_uint8(mbp, 0); /* MBZ */
650 mb_put_uint16le(mbp, 0); /* offset to secondary */
651 mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
652 mb_put_uint32le(mbp, uio->uio_offset);
653 *len = min(SSTOVC(ssp)->vc_rxmax, *len);
654 mb_put_uint16le(mbp, *len); /* MaxCount */
655 mb_put_uint16le(mbp, *len); /* MinCount (only indicates blocking) */
656 mb_put_uint32le(mbp, (unsigned)*len >> 16); /* MaxCountHigh */
657 mb_put_uint16le(mbp, *len); /* Remaining ("obsolete") */
658 mb_put_uint32le(mbp, uio->uio_offset >> 32); /* OffsetHigh */
663 error = smb_rq_simple(rqp);
666 smb_rq_getreply(rqp, &mdp);
668 md_get_uint8(mdp, &wc);
674 md_get_uint8(mdp, NULL);
676 md_get_uint8(mdp, NULL);
678 md_get_uint16le(mdp, NULL);
680 md_get_uint16le(mdp, NULL);
682 md_get_uint16le(mdp, NULL); /* data compaction mode */
684 md_get_uint16le(mdp, NULL);
686 md_get_uint16le(mdp, &residlo);
688 md_get_uint16le(mdp, &doff); /* data offset */
690 md_get_uint16le(mdp, &residhi);
692 resid = (residhi << 16) | residlo;
693 md_get_mem(mdp, NULL, 4 * 2, MB_MSYSTEM);
695 md_get_uint16le(mdp, NULL); /* ByteCount */
697 if (doff > off) /* pad byte(s)? */
698 md_get_mem(mdp, NULL, doff - off, MB_MSYSTEM);
703 error = md_get_uio(mdp, uio, resid);
713 smb_smb_writex(struct smb_share *ssp, u_int16_t fid, int *len, int *rresid,
714 struct uio *uio, struct smb_cred *scred)
723 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_WRITE_ANDX, scred, &rqp);
726 smb_rq_getrequest(rqp, &mbp);
728 mb_put_uint8(mbp, 0xff); /* no secondary command */
729 mb_put_uint8(mbp, 0); /* MBZ */
730 mb_put_uint16le(mbp, 0); /* offset to secondary */
731 mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
732 mb_put_uint32le(mbp, uio->uio_offset);
733 mb_put_uint32le(mbp, 0); /* MBZ (timeout) */
734 mb_put_uint16le(mbp, 0); /* !write-thru */
735 mb_put_uint16le(mbp, 0);
736 *len = min(SSTOVC(ssp)->vc_wxmax, *len);
737 mb_put_uint16le(mbp, (unsigned)*len >> 16);
738 mb_put_uint16le(mbp, *len);
739 mb_put_uint16le(mbp, 64); /* data offset from header start */
740 mb_put_uint32le(mbp, uio->uio_offset >> 32); /* OffsetHigh */
744 mb_put_uint8(mbp, 0xee); /* mimic xp pad byte! */
745 error = mb_put_uio(mbp, uio, *len);
749 error = smb_rq_simple(rqp);
752 smb_rq_getreply(rqp, &mdp);
753 md_get_uint8(mdp, &wc);
758 md_get_uint8(mdp, NULL);
759 md_get_uint8(mdp, NULL);
760 md_get_uint16le(mdp, NULL);
761 md_get_uint16le(mdp, &resid);
770 smb_smb_read(struct smb_share *ssp, u_int16_t fid,
771 int *len, int *rresid, struct uio *uio, struct smb_cred *scred)
778 int error, rlen, blksz;
780 if (SSTOVC(ssp)->vc_sopt.sv_caps & SMB_CAP_LARGE_READX)
781 return (smb_smb_readx(ssp, fid, len, rresid, uio, scred));
783 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_READ, scred, &rqp);
787 blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 16;
788 rlen = *len = min(blksz, *len);
790 smb_rq_getrequest(rqp, &mbp);
792 mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
793 mb_put_uint16le(mbp, rlen);
794 mb_put_uint32le(mbp, uio->uio_offset);
795 mb_put_uint16le(mbp, min(uio->uio_resid, 0xffff));
800 error = smb_rq_simple(rqp);
803 smb_rq_getreply(rqp, &mdp);
804 md_get_uint8(mdp, &wc);
809 md_get_uint16le(mdp, &resid);
810 md_get_mem(mdp, NULL, 4 * 2, MB_MSYSTEM);
811 md_get_uint16le(mdp, &bc);
812 md_get_uint8(mdp, NULL); /* ignore buffer type */
813 md_get_uint16le(mdp, &resid);
818 error = md_get_uio(mdp, uio, resid);
828 smb_read(struct smb_share *ssp, u_int16_t fid, struct uio *uio,
829 struct smb_cred *scred)
831 int tsize, len, resid;
834 tsize = uio->uio_resid;
838 error = smb_smb_read(ssp, fid, &len, &resid, uio, scred);
849 smb_smb_write(struct smb_share *ssp, u_int16_t fid, int *len, int *rresid,
850 struct uio *uio, struct smb_cred *scred)
859 if (*len && SSTOVC(ssp)->vc_sopt.sv_caps & SMB_CAP_LARGE_WRITEX)
860 return (smb_smb_writex(ssp, fid, len, rresid, uio, scred));
862 blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 16;
866 resid = *len = min(blksz, *len);
868 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_WRITE, scred, &rqp);
871 smb_rq_getrequest(rqp, &mbp);
873 mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
874 mb_put_uint16le(mbp, resid);
875 mb_put_uint32le(mbp, uio->uio_offset);
876 mb_put_uint16le(mbp, min(uio->uio_resid, 0xffff));
879 mb_put_uint8(mbp, SMB_DT_DATA);
880 mb_put_uint16le(mbp, resid);
882 error = mb_put_uio(mbp, uio, resid);
886 error = smb_rq_simple(rqp);
889 smb_rq_getreply(rqp, &mdp);
890 md_get_uint8(mdp, &wc);
895 md_get_uint16le(mdp, &resid);
903 smb_write(struct smb_share *ssp, u_int16_t fid, struct uio *uio,
904 struct smb_cred *scred)
906 int error = 0, len, tsize, resid;
909 tsize = uio->uio_resid;
914 error = smb_smb_write(ssp, fid, &len, &resid, uio, scred);
925 * Errors can happen on the copyin, the rpc, etc. So they
926 * imply resid is unreliable. The only safe thing is
927 * to pretend zero bytes made it. We needn't restore the
928 * iovs because callers don't depend on them in error
929 * paths - uio_resid and uio_offset are what matter.
937 smb_smb_echo(struct smb_vc *vcp, struct smb_cred *scred)
943 error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_ECHO, scred, &rqp);
948 mb_put_uint16le(mbp, 1);
951 mb_put_uint32le(mbp, 0);
953 error = smb_rq_simple(rqp);
954 SMBSDEBUG("%d\n", error);