2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2000-2001 Boris Popov
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * various SMB requests. Most of the routines merely packs data into mbufs.
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/malloc.h>
39 #include <sys/sysctl.h>
40 #include <sys/socket.h>
43 #include <sys/iconv.h>
45 #include <netsmb/smb.h>
46 #include <netsmb/smb_subr.h>
47 #include <netsmb/smb_rq.h>
48 #include <netsmb/smb_conn.h>
49 #include <netsmb/smb_tran.h>
51 #include "opt_netsmb.h"
58 static struct smb_dialect smb_dialects[] = {
59 {SMB_DIALECT_CORE, "PC NETWORK PROGRAM 1.0"},
60 {SMB_DIALECT_COREPLUS, "MICROSOFT NETWORKS 1.03"},
61 {SMB_DIALECT_LANMAN1_0, "MICROSOFT NETWORKS 3.0"},
62 {SMB_DIALECT_LANMAN1_0, "LANMAN1.0"},
63 {SMB_DIALECT_LANMAN2_0, "LM1.2X002"},
64 {SMB_DIALECT_LANMAN2_0, "Samba"},
65 {SMB_DIALECT_NTLM0_12, "NT LANMAN 1.0"},
66 {SMB_DIALECT_NTLM0_12, "NT LM 0.12"},
71 smb_vc_maxread(struct smb_vc *vcp)
74 * Specs say up to 64k data bytes, but Windows traffic
75 * uses 60k... no doubt for some good reason.
77 * Don't exceed the server's buffer size if signatures
78 * are enabled otherwise Windows 2003 chokes. Allow space
79 * for the SMB header & a little bit extra.
81 if ((vcp->vc_sopt.sv_caps & SMB_CAP_LARGE_READX) &&
82 (vcp->vc_hflags2 & SMB_FLAGS2_SECURITY_SIGNATURE) == 0)
85 return (vcp->vc_sopt.sv_maxtx - SMB_HDRLEN - 64);
89 smb_vc_maxwrite(struct smb_vc *vcp)
94 if ((vcp->vc_sopt.sv_caps & SMB_CAP_LARGE_WRITEX) &&
95 (vcp->vc_hflags2 & SMB_FLAGS2_SECURITY_SIGNATURE) == 0)
98 return (vcp->vc_sopt.sv_maxtx - SMB_HDRLEN - 64);
102 smb_smb_nomux(struct smb_vc *vcp, struct smb_cred *scred, const char *name)
104 if (scred->scr_td->td_proc == vcp->vc_iod->iod_p)
106 SMBERROR("wrong function called(%s)\n", name);
111 smb_smb_negotiate(struct smb_vc *vcp, struct smb_cred *scred)
113 struct smb_dialect *dp;
114 struct smb_sopt *sp = NULL;
118 u_int8_t wc, stime[8], sblen;
119 u_int16_t dindex, tw, tw1, swlen, bc;
121 int unicode = SMB_UNICODE_STRINGS(vcp);
122 void * servercharset = vcp->vc_toserver;
123 void * localcharset = vcp->vc_tolocal;
125 if (smb_smb_nomux(vcp, scred, __func__) != 0)
127 /* Disable Unicode for SMB_COM_NEGOTIATE requests */
129 vcp->vc_toserver = vcp->vc_cp_toserver;
130 vcp->vc_tolocal = vcp->vc_cp_tolocal;
134 vcp->obj.co_flags &= ~(SMBV_ENCRYPT);
136 bzero(sp, sizeof(struct smb_sopt));
137 error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_NEGOTIATE, scred, &rqp);
140 smb_rq_getrequest(rqp, &mbp);
144 for(dp = smb_dialects; dp->d_id != -1; dp++) {
145 mb_put_uint8(mbp, SMB_DT_DIALECT);
146 smb_put_dstring(mbp, vcp, dp->d_name, SMB_CS_NONE);
149 error = smb_rq_simple(rqp);
150 SMBSDEBUG("%d\n", error);
153 smb_rq_getreply(rqp, &mdp);
155 error = md_get_uint8(mdp, &wc);
158 error = md_get_uint16le(mdp, &dindex);
162 SMBERROR("Don't know how to talk with server %s (%d)\n", "xxx", dindex);
166 dp = smb_dialects + dindex;
167 sp->sv_proto = dp->d_id;
168 SMBSDEBUG("Dialect %s (%d, %d)\n", dp->d_name, dindex, wc);
170 if (dp->d_id >= SMB_DIALECT_NTLM0_12) {
173 md_get_uint8(mdp, &sp->sv_sm);
174 md_get_uint16le(mdp, &sp->sv_maxmux);
175 md_get_uint16le(mdp, &sp->sv_maxvcs);
176 md_get_uint32le(mdp, &sp->sv_maxtx);
177 md_get_uint32le(mdp, &sp->sv_maxraw);
178 md_get_uint32le(mdp, &sp->sv_skey);
179 md_get_uint32le(mdp, &sp->sv_caps);
180 md_get_mem(mdp, stime, 8, MB_MSYSTEM);
181 md_get_uint16le(mdp, (u_int16_t*)&sp->sv_tz);
182 md_get_uint8(mdp, &sblen);
183 if (sblen && (sp->sv_sm & SMB_SM_ENCRYPT)) {
184 if (sblen != SMB_MAXCHALLENGELEN) {
185 SMBERROR("Unexpected length of security blob (%d)\n", sblen);
188 error = md_get_uint16le(mdp, &bc);
191 if (sp->sv_caps & SMB_CAP_EXT_SECURITY)
192 md_get_mem(mdp, NULL, 16, MB_MSYSTEM);
193 error = md_get_mem(mdp, vcp->vc_ch, sblen, MB_MSYSTEM);
196 vcp->vc_chlen = sblen;
197 vcp->obj.co_flags |= SMBV_ENCRYPT;
199 if (sp->sv_sm & SMB_SM_SIGS_REQUIRE)
200 vcp->vc_hflags2 |= SMB_FLAGS2_SECURITY_SIGNATURE;
201 if (vcp->vc_ucs_toserver &&
202 sp->sv_caps & SMB_CAP_UNICODE) {
206 vcp->obj.co_flags |= SMBV_UNICODE;
208 vcp->vc_hflags2 |= SMB_FLAGS2_KNOWS_LONG_NAMES;
209 if (dp->d_id == SMB_DIALECT_NTLM0_12 &&
210 sp->sv_maxtx < 4096 &&
211 (sp->sv_caps & SMB_CAP_NT_SMBS) == 0) {
212 vcp->obj.co_flags |= SMBV_WIN95;
213 SMBSDEBUG("Win95 detected\n");
218 vcp->vc_hflags2 &= ~(SMB_FLAGS2_EXT_SEC|SMB_FLAGS2_DFS|
219 SMB_FLAGS2_ERR_STATUS|SMB_FLAGS2_UNICODE);
221 if (dp->d_id > SMB_DIALECT_CORE) {
222 md_get_uint16le(mdp, &tw);
224 md_get_uint16le(mdp, &tw);
226 md_get_uint16le(mdp, &sp->sv_maxmux);
227 md_get_uint16le(mdp, &sp->sv_maxvcs);
228 md_get_uint16le(mdp, &tw); /* rawmode */
229 md_get_uint32le(mdp, &sp->sv_skey);
230 if (wc == 13) { /* >= LANMAN1 */
231 md_get_uint16(mdp, &tw); /* time */
232 md_get_uint16(mdp, &tw1); /* date */
233 md_get_uint16le(mdp, (u_int16_t*)&sp->sv_tz);
234 md_get_uint16le(mdp, &swlen);
235 if (swlen > SMB_MAXCHALLENGELEN)
237 md_get_uint16(mdp, NULL); /* mbz */
238 if (md_get_uint16le(mdp, &bc) != 0)
242 if (swlen && (sp->sv_sm & SMB_SM_ENCRYPT)) {
243 error = md_get_mem(mdp, vcp->vc_ch, swlen, MB_MSYSTEM);
246 vcp->vc_chlen = swlen;
247 vcp->obj.co_flags |= SMBV_ENCRYPT;
250 vcp->vc_hflags2 |= SMB_FLAGS2_KNOWS_LONG_NAMES;
251 } else { /* an old CORE protocol */
257 vcp->vc_maxvcs = sp->sv_maxvcs;
258 if (vcp->vc_maxvcs <= 1) {
259 if (vcp->vc_maxvcs == 0)
262 if (sp->sv_maxtx <= 0 || sp->sv_maxtx > 0xffff)
265 sp->sv_maxtx = min(sp->sv_maxtx,
266 63*1024 + SMB_HDRLEN + 16);
267 SMB_TRAN_GETPARAM(vcp, SMBTP_RCVSZ, &maxqsz);
268 vcp->vc_rxmax = min(smb_vc_maxread(vcp), maxqsz - 1024);
269 SMB_TRAN_GETPARAM(vcp, SMBTP_SNDSZ, &maxqsz);
270 vcp->vc_wxmax = min(smb_vc_maxwrite(vcp), maxqsz - 1024);
271 vcp->vc_txmax = min(sp->sv_maxtx, maxqsz);
272 SMBSDEBUG("TZ = %d\n", sp->sv_tz);
273 SMBSDEBUG("CAPS = %x\n", sp->sv_caps);
274 SMBSDEBUG("MAXMUX = %d\n", sp->sv_maxmux);
275 SMBSDEBUG("MAXVCS = %d\n", sp->sv_maxvcs);
276 SMBSDEBUG("MAXRAW = %d\n", sp->sv_maxraw);
277 SMBSDEBUG("MAXTX = %d\n", sp->sv_maxtx);
280 /* Restore Unicode conversion state */
282 vcp->vc_toserver = servercharset;
283 vcp->vc_tolocal = localcharset;
284 vcp->vc_hflags2 |= SMB_FLAGS2_UNICODE;
291 smb_smb_ssnsetup(struct smb_vc *vcp, struct smb_cred *scred)
297 smb_uniptr unipp, ntencpass = NULL;
298 char *pp, *up, *pbuf, *encpass;
299 int error, plen, uniplen, ulen, upper;
304 if (vcp->obj.co_flags & SMBV_UNICODE)
305 caps |= SMB_CAP_UNICODE;
309 vcp->vc_smbuid = SMB_UID_UNKNOWN;
311 if (smb_smb_nomux(vcp, scred, __func__) != 0)
314 error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_SESSION_SETUP_ANDX, scred, &rqp);
317 pbuf = malloc(SMB_MAXPASSWORDLEN + 1, M_SMBTEMP, M_WAITOK);
318 encpass = malloc(24, M_SMBTEMP, M_WAITOK);
319 if (vcp->vc_sopt.sv_sm & SMB_SM_USER) {
321 * We try w/o uppercasing first so Samba mixed case
322 * passwords work. If that fails we come back and try
323 * uppercasing to satisfy OS/2 and Windows for Workgroups.
326 iconv_convstr(vcp->vc_toupper, pbuf,
327 smb_vc_getpass(vcp)/*, SMB_MAXPASSWORDLEN*/);
329 strncpy(pbuf, smb_vc_getpass(vcp), SMB_MAXPASSWORDLEN);
330 pbuf[SMB_MAXPASSWORDLEN] = '\0';
332 if (!SMB_UNICODE_STRINGS(vcp))
333 iconv_convstr(vcp->vc_toserver, pbuf, pbuf/*,
334 SMB_MAXPASSWORDLEN*/);
336 if (vcp->vc_sopt.sv_sm & SMB_SM_ENCRYPT) {
338 smb_encrypt(pbuf, vcp->vc_ch, encpass);
339 ntencpass = malloc(uniplen, M_SMBTEMP, M_WAITOK);
340 if (SMB_UNICODE_STRINGS(vcp)) {
341 strncpy(pbuf, smb_vc_getpass(vcp),
343 pbuf[SMB_MAXPASSWORDLEN] = '\0';
345 iconv_convstr(vcp->vc_toserver, pbuf,
346 smb_vc_getpass(vcp)/*,
347 SMB_MAXPASSWORDLEN*/);
348 smb_ntencrypt(pbuf, vcp->vc_ch, (u_char*)ntencpass);
352 plen = strlen(pbuf) + 1;
355 ntencpass = malloc(uniplen, M_SMBTEMP, M_WAITOK);
356 smb_strtouni(ntencpass, smb_vc_getpass(vcp));
360 * The uniplen is zeroed because Samba cannot deal
361 * with this 2nd cleartext password. This Samba
362 * "bug" is actually a workaround for problems in
370 * In the share security mode password will be used
371 * only in the tree authentication
376 uniplen = 0 /* sizeof(smb_unieol) */;
380 up = vcp->vc_username;
381 ulen = strlen(up) + 1;
383 * If userid is null we are attempting anonymous browse login
384 * so passwords must be zero length.
388 mb_put_uint8(mbp, 0xff);
389 mb_put_uint8(mbp, 0);
390 mb_put_uint16le(mbp, 0);
391 mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxtx);
392 mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxmux);
393 mb_put_uint16le(mbp, vcp->vc_number);
394 mb_put_uint32le(mbp, vcp->vc_sopt.sv_skey);
395 mb_put_uint16le(mbp, plen);
396 if (SMB_DIALECT(vcp) < SMB_DIALECT_NTLM0_12) {
397 mb_put_uint32le(mbp, 0);
400 mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
401 smb_put_dstring(mbp, vcp, up, SMB_CS_NONE);
403 mb_put_uint16le(mbp, uniplen);
404 mb_put_uint32le(mbp, 0); /* reserved */
405 mb_put_uint32le(mbp, caps);
408 mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
409 mb_put_mem(mbp, (caddr_t)unipp, uniplen, MB_MSYSTEM);
410 smb_put_dstring(mbp, vcp, up, SMB_CS_NONE); /* AccountName */
411 smb_put_dstring(mbp, vcp, vcp->vc_domain, SMB_CS_NONE); /* PrimaryDomain */
412 smb_put_dstring(mbp, vcp, "FreeBSD", SMB_CS_NONE); /* Client's OS */
413 smb_put_dstring(mbp, vcp, "NETSMB", SMB_CS_NONE); /* Client name */
417 free(ntencpass, M_SMBTEMP);
418 if (vcp->vc_hflags2 & SMB_FLAGS2_SECURITY_SIGNATURE)
420 error = smb_rq_simple(rqp);
421 SMBSDEBUG("%d\n", error);
423 if (rqp->sr_errclass == ERRDOS && rqp->sr_serror == ERRnoaccess)
427 vcp->vc_smbuid = rqp->sr_rpuid;
429 free(encpass, M_SMBTEMP);
430 free(pbuf, M_SMBTEMP);
432 if (error && upper == 1 && vcp->vc_sopt.sv_sm & SMB_SM_USER)
438 smb_smb_ssnclose(struct smb_vc *vcp, struct smb_cred *scred)
444 if (vcp->vc_smbuid == SMB_UID_UNKNOWN)
447 if (smb_smb_nomux(vcp, scred, __func__) != 0)
450 error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_LOGOFF_ANDX, scred, &rqp);
455 mb_put_uint8(mbp, 0xff);
456 mb_put_uint8(mbp, 0);
457 mb_put_uint16le(mbp, 0);
461 error = smb_rq_simple(rqp);
462 SMBSDEBUG("%d\n", error);
467 static char smb_any_share[] = "?????";
470 smb_share_typename(int stype)
479 pp = smb_any_share; /* can't use LPT: here... */
496 smb_smb_treeconnect(struct smb_share *ssp, struct smb_cred *scred)
499 struct smb_rq rq, *rqp = &rq;
501 char *pp, *pbuf, *encpass;
502 int error, plen, caseopt, upper;
507 /* Disable Unicode for SMB_COM_TREE_CONNECT_ANDX requests */
508 if (SSTOVC(ssp)->vc_hflags2 & SMB_FLAGS2_UNICODE) {
510 vcp->vc_toserver = vcp->vc_cp_toserver;
511 vcp->vc_tolocal = vcp->vc_cp_tolocal;
512 vcp->vc_hflags2 &= ~SMB_FLAGS2_UNICODE;
515 ssp->ss_tid = SMB_TID_UNKNOWN;
516 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_TREE_CONNECT_ANDX, scred, &rqp);
520 caseopt = SMB_CS_NONE;
521 if (vcp->vc_sopt.sv_sm & SMB_SM_USER) {
527 pbuf = malloc(SMB_MAXPASSWORDLEN + 1, M_SMBTEMP, M_WAITOK);
528 encpass = malloc(24, M_SMBTEMP, M_WAITOK);
530 * We try w/o uppercasing first so Samba mixed case
531 * passwords work. If that fails we come back and try
532 * uppercasing to satisfy OS/2 and Windows for Workgroups.
535 iconv_convstr(vcp->vc_toupper, pbuf,
536 smb_share_getpass(ssp)/*,
537 SMB_MAXPASSWORDLEN*/);
539 strncpy(pbuf, smb_share_getpass(ssp),
541 pbuf[SMB_MAXPASSWORDLEN] = '\0';
543 if (vcp->vc_sopt.sv_sm & SMB_SM_ENCRYPT) {
545 smb_encrypt(pbuf, vcp->vc_ch, encpass);
548 plen = strlen(pbuf) + 1;
554 mb_put_uint8(mbp, 0xff);
555 mb_put_uint8(mbp, 0);
556 mb_put_uint16le(mbp, 0);
557 mb_put_uint16le(mbp, 0); /* Flags */
558 mb_put_uint16le(mbp, plen);
561 mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
562 smb_put_dmem(mbp, vcp, "\\\\", 2, caseopt);
563 pp = vcp->vc_srvname;
564 smb_put_dmem(mbp, vcp, pp, strlen(pp), caseopt);
565 smb_put_dmem(mbp, vcp, "\\", 1, caseopt);
567 smb_put_dstring(mbp, vcp, pp, caseopt);
568 pp = smb_share_typename(ssp->ss_type);
569 smb_put_dstring(mbp, vcp, pp, caseopt);
571 error = smb_rq_simple(rqp);
572 SMBSDEBUG("%d\n", error);
575 ssp->ss_tid = rqp->sr_rptid;
576 ssp->ss_vcgenid = vcp->vc_genid;
577 ssp->ss_flags |= SMBS_CONNECTED;
579 * If the server can speak Unicode then switch
580 * our converters to do Unicode <--> Local
582 if (vcp->obj.co_flags & SMBV_UNICODE) {
583 vcp->vc_toserver = vcp->vc_ucs_toserver;
584 vcp->vc_tolocal = vcp->vc_ucs_tolocal;
585 vcp->vc_hflags2 |= SMB_FLAGS2_UNICODE;
589 free(encpass, M_SMBTEMP);
591 free(pbuf, M_SMBTEMP);
593 if (error && upper == 1)
599 smb_smb_treedisconnect(struct smb_share *ssp, struct smb_cred *scred)
604 if (ssp->ss_tid == SMB_TID_UNKNOWN)
606 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_TREE_DISCONNECT, scred, &rqp);
613 error = smb_rq_simple(rqp);
614 SMBSDEBUG("%d\n", error);
616 ssp->ss_tid = SMB_TID_UNKNOWN;
621 smb_smb_readx(struct smb_share *ssp, u_int16_t fid, int *len, int *rresid,
622 struct uio *uio, struct smb_cred *scred)
629 u_int16_t residhi, residlo, off, doff;
632 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_READ_ANDX, scred, &rqp);
635 smb_rq_getrequest(rqp, &mbp);
637 mb_put_uint8(mbp, 0xff); /* no secondary command */
638 mb_put_uint8(mbp, 0); /* MBZ */
639 mb_put_uint16le(mbp, 0); /* offset to secondary */
640 mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
641 mb_put_uint32le(mbp, uio->uio_offset);
642 *len = min(SSTOVC(ssp)->vc_rxmax, *len);
643 mb_put_uint16le(mbp, *len); /* MaxCount */
644 mb_put_uint16le(mbp, *len); /* MinCount (only indicates blocking) */
645 mb_put_uint32le(mbp, (unsigned)*len >> 16); /* MaxCountHigh */
646 mb_put_uint16le(mbp, *len); /* Remaining ("obsolete") */
647 mb_put_uint32le(mbp, uio->uio_offset >> 32); /* OffsetHigh */
652 error = smb_rq_simple(rqp);
655 smb_rq_getreply(rqp, &mdp);
657 md_get_uint8(mdp, &wc);
663 md_get_uint8(mdp, NULL);
665 md_get_uint8(mdp, NULL);
667 md_get_uint16le(mdp, NULL);
669 md_get_uint16le(mdp, NULL);
671 md_get_uint16le(mdp, NULL); /* data compaction mode */
673 md_get_uint16le(mdp, NULL);
675 md_get_uint16le(mdp, &residlo);
677 md_get_uint16le(mdp, &doff); /* data offset */
679 md_get_uint16le(mdp, &residhi);
681 resid = (residhi << 16) | residlo;
682 md_get_mem(mdp, NULL, 4 * 2, MB_MSYSTEM);
684 md_get_uint16le(mdp, NULL); /* ByteCount */
686 if (doff > off) /* pad byte(s)? */
687 md_get_mem(mdp, NULL, doff - off, MB_MSYSTEM);
692 error = md_get_uio(mdp, uio, resid);
702 smb_smb_writex(struct smb_share *ssp, u_int16_t fid, int *len, int *rresid,
703 struct uio *uio, struct smb_cred *scred)
712 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_WRITE_ANDX, scred, &rqp);
715 smb_rq_getrequest(rqp, &mbp);
717 mb_put_uint8(mbp, 0xff); /* no secondary command */
718 mb_put_uint8(mbp, 0); /* MBZ */
719 mb_put_uint16le(mbp, 0); /* offset to secondary */
720 mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
721 mb_put_uint32le(mbp, uio->uio_offset);
722 mb_put_uint32le(mbp, 0); /* MBZ (timeout) */
723 mb_put_uint16le(mbp, 0); /* !write-thru */
724 mb_put_uint16le(mbp, 0);
725 *len = min(SSTOVC(ssp)->vc_wxmax, *len);
726 mb_put_uint16le(mbp, (unsigned)*len >> 16);
727 mb_put_uint16le(mbp, *len);
728 mb_put_uint16le(mbp, 64); /* data offset from header start */
729 mb_put_uint32le(mbp, uio->uio_offset >> 32); /* OffsetHigh */
733 mb_put_uint8(mbp, 0xee); /* mimic xp pad byte! */
734 error = mb_put_uio(mbp, uio, *len);
738 error = smb_rq_simple(rqp);
741 smb_rq_getreply(rqp, &mdp);
742 md_get_uint8(mdp, &wc);
747 md_get_uint8(mdp, NULL);
748 md_get_uint8(mdp, NULL);
749 md_get_uint16le(mdp, NULL);
750 md_get_uint16le(mdp, &resid);
759 smb_smb_read(struct smb_share *ssp, u_int16_t fid,
760 int *len, int *rresid, struct uio *uio, struct smb_cred *scred)
767 int error, rlen, blksz;
769 if (SSTOVC(ssp)->vc_sopt.sv_caps & SMB_CAP_LARGE_READX)
770 return (smb_smb_readx(ssp, fid, len, rresid, uio, scred));
772 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_READ, scred, &rqp);
776 blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 16;
777 rlen = *len = min(blksz, *len);
779 smb_rq_getrequest(rqp, &mbp);
781 mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
782 mb_put_uint16le(mbp, rlen);
783 mb_put_uint32le(mbp, uio->uio_offset);
784 mb_put_uint16le(mbp, min(uio->uio_resid, 0xffff));
789 error = smb_rq_simple(rqp);
792 smb_rq_getreply(rqp, &mdp);
793 md_get_uint8(mdp, &wc);
798 md_get_uint16le(mdp, &resid);
799 md_get_mem(mdp, NULL, 4 * 2, MB_MSYSTEM);
800 md_get_uint16le(mdp, &bc);
801 md_get_uint8(mdp, NULL); /* ignore buffer type */
802 md_get_uint16le(mdp, &resid);
807 error = md_get_uio(mdp, uio, resid);
817 smb_read(struct smb_share *ssp, u_int16_t fid, struct uio *uio,
818 struct smb_cred *scred)
820 int tsize, len, resid;
823 tsize = uio->uio_resid;
827 error = smb_smb_read(ssp, fid, &len, &resid, uio, scred);
838 smb_smb_write(struct smb_share *ssp, u_int16_t fid, int *len, int *rresid,
839 struct uio *uio, struct smb_cred *scred)
848 if (*len && SSTOVC(ssp)->vc_sopt.sv_caps & SMB_CAP_LARGE_WRITEX)
849 return (smb_smb_writex(ssp, fid, len, rresid, uio, scred));
851 blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 16;
855 resid = *len = min(blksz, *len);
857 error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_WRITE, scred, &rqp);
860 smb_rq_getrequest(rqp, &mbp);
862 mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
863 mb_put_uint16le(mbp, resid);
864 mb_put_uint32le(mbp, uio->uio_offset);
865 mb_put_uint16le(mbp, min(uio->uio_resid, 0xffff));
868 mb_put_uint8(mbp, SMB_DT_DATA);
869 mb_put_uint16le(mbp, resid);
871 error = mb_put_uio(mbp, uio, resid);
875 error = smb_rq_simple(rqp);
878 smb_rq_getreply(rqp, &mdp);
879 md_get_uint8(mdp, &wc);
884 md_get_uint16le(mdp, &resid);
892 smb_write(struct smb_share *ssp, u_int16_t fid, struct uio *uio,
893 struct smb_cred *scred)
895 int error = 0, len, tsize, resid;
898 tsize = uio->uio_resid;
903 error = smb_smb_write(ssp, fid, &len, &resid, uio, scred);
914 * Errors can happen on the copyin, the rpc, etc. So they
915 * imply resid is unreliable. The only safe thing is
916 * to pretend zero bytes made it. We needn't restore the
917 * iovs because callers don't depend on them in error
918 * paths - uio_resid and uio_offset are what matter.
926 smb_smb_echo(struct smb_vc *vcp, struct smb_cred *scred)
932 error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_ECHO, scred, &rqp);
937 mb_put_uint16le(mbp, 1);
940 mb_put_uint32le(mbp, 0);
942 error = smb_rq_simple(rqp);
943 SMBSDEBUG("%d\n", error);