1 | /* $NetBSD: smb_smb.c,v 1.33 2012/11/24 19:48:25 nakayama Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2000-2001 Boris Popov |
5 | * All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
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. |
15 | * 3. All advertising materials mentioning features or use of this software |
16 | * must display the following acknowledgement: |
17 | * This product includes software developed by Boris Popov. |
18 | * 4. Neither the name of the author nor the names of any co-contributors |
19 | * may be used to endorse or promote products derived from this software |
20 | * without specific prior written permission. |
21 | * |
22 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
32 | * SUCH DAMAGE. |
33 | * |
34 | * FreeBSD: src/sys/netsmb/smb_smb.c,v 1.10 2003/02/19 05:47:38 imp Exp |
35 | */ |
36 | /* |
37 | * various SMB requests. Most of the routines merely packs data into mbufs. |
38 | */ |
39 | |
40 | #include <sys/cdefs.h> |
41 | __KERNEL_RCSID(0, "$NetBSD: smb_smb.c,v 1.33 2012/11/24 19:48:25 nakayama Exp $" ); |
42 | |
43 | #include <sys/param.h> |
44 | #include <sys/systm.h> |
45 | #include <sys/kernel.h> |
46 | #include <sys/malloc.h> |
47 | #include <sys/proc.h> |
48 | #include <sys/lock.h> |
49 | #include <sys/sysctl.h> |
50 | #include <sys/socket.h> |
51 | #include <sys/uio.h> |
52 | |
53 | #include <netsmb/iconv.h> |
54 | |
55 | #include <netsmb/smb.h> |
56 | #include <netsmb/smb_subr.h> |
57 | #include <netsmb/smb_rq.h> |
58 | #include <netsmb/smb_conn.h> |
59 | #include <netsmb/smb_tran.h> |
60 | |
61 | struct smb_dialect { |
62 | int d_id; |
63 | const char *d_name; |
64 | }; |
65 | |
66 | static const struct smb_dialect smb_dialects[] = { |
67 | {SMB_DIALECT_CORE, "PC NETWORK PROGRAM 1.0" }, |
68 | {SMB_DIALECT_COREPLUS, "MICROSOFT NETWORKS 1.03" }, |
69 | {SMB_DIALECT_LANMAN1_0, "MICROSOFT NETWORKS 3.0" }, |
70 | {SMB_DIALECT_LANMAN1_0, "LANMAN1.0" }, |
71 | {SMB_DIALECT_LANMAN2_0, "LM1.2X002" }, |
72 | {SMB_DIALECT_LANMAN2_0, "Samba" }, |
73 | {SMB_DIALECT_NTLM0_12, "NT LANMAN 1.0" }, |
74 | {SMB_DIALECT_NTLM0_12, "NT LM 0.12" }, |
75 | {-1, NULL} |
76 | }; |
77 | |
78 | static u_int32_t |
79 | smb_vc_maxread(struct smb_vc *vcp) |
80 | { |
81 | /* |
82 | * Specs say up to 64k data bytes, but Windows traffic |
83 | * uses 60k... no doubt for some good reason. |
84 | */ |
85 | if (SMB_CAPS(vcp) & SMB_CAP_LARGE_READX) |
86 | return (60*1024); |
87 | else |
88 | return (vcp->vc_sopt.sv_maxtx); |
89 | } |
90 | |
91 | static u_int32_t |
92 | smb_vc_maxwrite(struct smb_vc *vcp) |
93 | { |
94 | /* |
95 | * Specs say up to 64k data bytes, but Windows traffic |
96 | * uses 60k... probably for some good reason. |
97 | */ |
98 | if (SMB_CAPS(vcp) & SMB_CAP_LARGE_WRITEX) |
99 | return (60*1024); |
100 | else |
101 | return (vcp->vc_sopt.sv_maxtx); |
102 | } |
103 | |
104 | int |
105 | smb_smb_negotiate(struct smb_vc *vcp, struct smb_cred *scred) |
106 | { |
107 | const struct smb_dialect *dp; |
108 | struct smb_sopt *sp = NULL; |
109 | struct smb_rq *rqp; |
110 | struct mbchain *mbp; |
111 | struct mdchain *mdp; |
112 | u_int8_t wc, stime[8], sblen; |
113 | u_int16_t dindex, tw, swlen, bc; |
114 | int error, maxqsz; |
115 | |
116 | KASSERT(scred->scr_l == vcp->vc_iod->iod_l); |
117 | |
118 | vcp->vc_hflags = 0; |
119 | vcp->vc_hflags2 = 0; |
120 | vcp->obj.co_flags &= ~(SMBV_ENCRYPT); |
121 | sp = &vcp->vc_sopt; |
122 | memset(sp, 0, sizeof(struct smb_sopt)); |
123 | error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_NEGOTIATE, scred, &rqp); |
124 | if (error) |
125 | return error; |
126 | smb_rq_getrequest(rqp, &mbp); |
127 | smb_rq_wstart(rqp); |
128 | smb_rq_wend(rqp); |
129 | smb_rq_bstart(rqp); |
130 | for(dp = smb_dialects; dp->d_id != -1; dp++) { |
131 | mb_put_uint8(mbp, SMB_DT_DIALECT); |
132 | smb_put_dstring(mbp, vcp, dp->d_name, SMB_CS_NONE); |
133 | } |
134 | smb_rq_bend(rqp); |
135 | error = smb_rq_simple(rqp); |
136 | SMBSDEBUG(("%d\n" , error)); |
137 | if (error) |
138 | goto bad; |
139 | smb_rq_getreply(rqp, &mdp); |
140 | do { |
141 | error = md_get_uint8(mdp, &wc); |
142 | if (error) |
143 | break; |
144 | error = md_get_uint16le(mdp, &dindex); |
145 | if (error) |
146 | break; |
147 | if (dindex > 7) { |
148 | SMBERROR(("Don't know how to talk with server %s (%d)\n" , "xxx" , dindex)); |
149 | error = EBADRPC; |
150 | break; |
151 | } |
152 | dp = smb_dialects + dindex; |
153 | sp->sv_proto = dp->d_id; |
154 | SMBSDEBUG(("Dialect %s (%d, %d)\n" , dp->d_name, dindex, wc)); |
155 | error = EBADRPC; |
156 | if (dp->d_id >= SMB_DIALECT_NTLM0_12) { |
157 | u_int8_t tb; |
158 | |
159 | if (wc != 17) |
160 | break; |
161 | md_get_uint8(mdp, &tb); |
162 | sp->sv_sm = tb; |
163 | md_get_uint16le(mdp, &sp->sv_maxmux); |
164 | md_get_uint16le(mdp, &sp->sv_maxvcs); |
165 | md_get_uint32le(mdp, &sp->sv_maxtx); |
166 | md_get_uint32le(mdp, &sp->sv_maxraw); |
167 | md_get_uint32le(mdp, &sp->sv_skey); |
168 | md_get_uint32le(mdp, &sp->sv_caps); |
169 | md_get_mem(mdp, stime, 8, MB_MSYSTEM); |
170 | md_get_uint16le(mdp, &tw); |
171 | sp->sv_tz = tw; |
172 | md_get_uint8(mdp, &sblen); |
173 | if (sblen && (sp->sv_sm & SMB_SM_ENCRYPT)) { |
174 | if (sblen != SMB_MAXCHALLENGELEN) { |
175 | SMBERROR(("Unexpected length of security blob (%d)\n" , sblen)); |
176 | break; |
177 | } |
178 | error = md_get_uint16le(mdp, &bc); |
179 | if (error) |
180 | break; |
181 | if (sp->sv_caps & SMB_CAP_EXT_SECURITY) |
182 | md_get_mem(mdp, NULL, 16, MB_MSYSTEM); |
183 | error = md_get_mem(mdp, vcp->vc_ch, sblen, MB_MSYSTEM); |
184 | if (error) |
185 | break; |
186 | vcp->vc_chlen = sblen; |
187 | vcp->obj.co_flags |= SMBV_ENCRYPT; |
188 | } |
189 | vcp->vc_hflags2 |= SMB_FLAGS2_KNOWS_LONG_NAMES; |
190 | if (dp->d_id == SMB_DIALECT_NTLM0_12 && |
191 | sp->sv_maxtx < 4096 && |
192 | (sp->sv_caps & SMB_CAP_NT_SMBS) == 0) { |
193 | vcp->obj.co_flags |= SMBV_WIN95; |
194 | SMBSDEBUG(("Win95 detected\n" )); |
195 | } |
196 | } else if (dp->d_id > SMB_DIALECT_CORE) { |
197 | md_get_uint16le(mdp, &sp->sv_sm); |
198 | md_get_uint16le(mdp, &tw); |
199 | sp->sv_maxtx = tw; |
200 | md_get_uint16le(mdp, &sp->sv_maxmux); |
201 | md_get_uint16le(mdp, &sp->sv_maxvcs); |
202 | md_get_uint16(mdp, NULL); /* rawmode */ |
203 | md_get_uint32le(mdp, &sp->sv_skey); |
204 | if (wc == 13) { /* >= LANMAN1 */ |
205 | md_get_uint16(mdp, NULL); /* time */ |
206 | md_get_uint16(mdp, NULL); /* date */ |
207 | md_get_uint16le(mdp, &tw); |
208 | sp->sv_tz = tw; |
209 | md_get_uint16le(mdp, &swlen); |
210 | if (swlen > SMB_MAXCHALLENGELEN) |
211 | break; |
212 | md_get_uint16(mdp, NULL); /* mbz */ |
213 | if (md_get_uint16le(mdp, &bc) != 0) |
214 | break; |
215 | if (bc < swlen) |
216 | break; |
217 | if (swlen && (sp->sv_sm & SMB_SM_ENCRYPT)) { |
218 | error = md_get_mem(mdp, vcp->vc_ch, swlen, MB_MSYSTEM); |
219 | if (error) |
220 | break; |
221 | vcp->vc_chlen = swlen; |
222 | vcp->obj.co_flags |= SMBV_ENCRYPT; |
223 | } |
224 | } |
225 | vcp->vc_hflags2 |= SMB_FLAGS2_KNOWS_LONG_NAMES; |
226 | } else { /* an old CORE protocol */ |
227 | sp->sv_maxmux = 1; |
228 | } |
229 | error = 0; |
230 | } while (0); |
231 | if (error == 0) { |
232 | vcp->vc_maxvcs = sp->sv_maxvcs; |
233 | if (vcp->vc_maxvcs <= 1) { |
234 | if (vcp->vc_maxvcs == 0) |
235 | vcp->vc_maxvcs = 1; |
236 | } |
237 | if (sp->sv_maxtx <= 0 || sp->sv_maxtx > 0xffff) |
238 | sp->sv_maxtx = 1024; |
239 | else |
240 | sp->sv_maxtx = min(sp->sv_maxtx, |
241 | 63*1024 + SMB_HDRLEN + 16); |
242 | SMB_TRAN_GETPARAM(vcp, SMBTP_RCVSZ, &maxqsz); |
243 | vcp->vc_rxmax = min(smb_vc_maxread(vcp), maxqsz - 1024); |
244 | SMB_TRAN_GETPARAM(vcp, SMBTP_SNDSZ, &maxqsz); |
245 | vcp->vc_wxmax = min(smb_vc_maxwrite(vcp), maxqsz - 1024); |
246 | vcp->vc_txmax = min(sp->sv_maxtx, maxqsz); |
247 | SMBSDEBUG(("TZ = %d\n" , sp->sv_tz)); |
248 | SMBSDEBUG(("CAPS = %x\n" , sp->sv_caps)); |
249 | SMBSDEBUG(("MAXMUX = %d\n" , sp->sv_maxmux)); |
250 | SMBSDEBUG(("MAXVCS = %d\n" , sp->sv_maxvcs)); |
251 | SMBSDEBUG(("MAXRAW = %d\n" , sp->sv_maxraw)); |
252 | SMBSDEBUG(("MAXTX = %d\n" , sp->sv_maxtx)); |
253 | } |
254 | bad: |
255 | smb_rq_done(rqp); |
256 | return error; |
257 | } |
258 | |
259 | int |
260 | smb_smb_ssnsetup(struct smb_vc *vcp, struct smb_cred *scred) |
261 | { |
262 | struct smb_rq *rqp; |
263 | struct mbchain *mbp; |
264 | const smb_unichar *unipp; |
265 | smb_uniptr ntencpass = NULL; |
266 | char *up, *pbuf, *encpass; |
267 | const char *pp; |
268 | int error, plen, uniplen, ulen, upper; |
269 | |
270 | KASSERT(scred->scr_l == vcp->vc_iod->iod_l); |
271 | |
272 | upper = 0; |
273 | |
274 | again: |
275 | |
276 | vcp->vc_smbuid = SMB_UID_UNKNOWN; |
277 | |
278 | error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_SESSION_SETUP_ANDX, scred, &rqp); |
279 | if (error) |
280 | return error; |
281 | pbuf = malloc(SMB_MAXPASSWORDLEN + 1, M_SMBTEMP, M_WAITOK); |
282 | encpass = malloc(24, M_SMBTEMP, M_WAITOK); |
283 | if (vcp->vc_sopt.sv_sm & SMB_SM_USER) { |
284 | /* |
285 | * We try w/o uppercasing first so Samba mixed case |
286 | * passwords work. If that fails we come back and try |
287 | * uppercasing to satisfy OS/2 and Windows for Workgroups. |
288 | */ |
289 | if (upper) { |
290 | iconv_convstr(vcp->vc_toupper, pbuf, |
291 | smb_vc_getpass(vcp), SMB_MAXPASSWORDLEN + 1); |
292 | } else { |
293 | strlcpy(pbuf, smb_vc_getpass(vcp), |
294 | SMB_MAXPASSWORDLEN + 1); |
295 | } |
296 | if (!SMB_UNICODE_STRINGS(vcp)) |
297 | iconv_convstr(vcp->vc_toserver, pbuf, pbuf, |
298 | SMB_MAXPASSWORDLEN + 1); |
299 | |
300 | if (vcp->vc_sopt.sv_sm & SMB_SM_ENCRYPT) { |
301 | uniplen = plen = 24; |
302 | smb_encrypt(pbuf, vcp->vc_ch, encpass); |
303 | ntencpass = malloc(uniplen, M_SMBTEMP, M_WAITOK); |
304 | if (SMB_UNICODE_STRINGS(vcp)) { |
305 | strlcpy(pbuf, smb_vc_getpass(vcp), |
306 | SMB_MAXPASSWORDLEN + 1); |
307 | } else |
308 | iconv_convstr(vcp->vc_toserver, pbuf, |
309 | smb_vc_getpass(vcp), |
310 | SMB_MAXPASSWORDLEN + 1); |
311 | smb_ntencrypt(pbuf, vcp->vc_ch, (u_char*)ntencpass); |
312 | pp = encpass; |
313 | unipp = ntencpass; |
314 | } else { |
315 | plen = strlen(pbuf) + 1; |
316 | pp = pbuf; |
317 | uniplen = plen * 2; |
318 | ntencpass = malloc(uniplen, M_SMBTEMP, M_WAITOK); |
319 | smb_strtouni(ntencpass, smb_vc_getpass(vcp)); |
320 | plen--; |
321 | |
322 | /* |
323 | * The uniplen is zeroed because Samba cannot deal |
324 | * with this 2nd cleartext password. This Samba |
325 | * "bug" is actually a workaround for problems in |
326 | * Microsoft clients. |
327 | */ |
328 | uniplen = 0/*-= 2*/; |
329 | unipp = ntencpass; |
330 | } |
331 | } else { |
332 | /* |
333 | * In the share security mode password will be used |
334 | * only in the tree authentication |
335 | */ |
336 | pp = "" ; |
337 | plen = 1; |
338 | unipp = &smb_unieol; |
339 | uniplen = 0; |
340 | } |
341 | smb_rq_wstart(rqp); |
342 | mbp = &rqp->sr_rq; |
343 | up = vcp->vc_username; |
344 | ulen = strlen(up) + 1; |
345 | /* |
346 | * If userid is null we are attempting anonymous browse login |
347 | * so passwords must be zero length. |
348 | */ |
349 | if (ulen == 1) |
350 | plen = uniplen = 0; |
351 | mb_put_uint8(mbp, 0xff); |
352 | mb_put_uint8(mbp, 0); |
353 | mb_put_uint16le(mbp, 0); |
354 | mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxtx); |
355 | mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxmux); |
356 | mb_put_uint16le(mbp, vcp->vc_number); |
357 | mb_put_uint32le(mbp, vcp->vc_sopt.sv_skey); |
358 | mb_put_uint16le(mbp, plen); |
359 | if (SMB_DIALECT(vcp) < SMB_DIALECT_NTLM0_12) { |
360 | mb_put_uint32le(mbp, 0); |
361 | smb_rq_wend(rqp); |
362 | smb_rq_bstart(rqp); |
363 | mb_put_mem(mbp, pp, plen, MB_MSYSTEM); |
364 | smb_put_dstring(mbp, vcp, up, SMB_CS_NONE); |
365 | } else { |
366 | mb_put_uint16le(mbp, uniplen); |
367 | mb_put_uint32le(mbp, 0); /* reserved */ |
368 | mb_put_uint32le(mbp, vcp->obj.co_flags & SMBV_UNICODE ? |
369 | SMB_CAP_UNICODE : 0); |
370 | smb_rq_wend(rqp); |
371 | smb_rq_bstart(rqp); |
372 | mb_put_mem(mbp, pp, plen, MB_MSYSTEM); |
373 | mb_put_mem(mbp, (const void *)unipp, uniplen, MB_MSYSTEM); |
374 | smb_put_dstring(mbp, vcp, up, SMB_CS_NONE); /* AccountName */ |
375 | smb_put_dstring(mbp, vcp, vcp->vc_domain, SMB_CS_NONE); /* PrimaryDomain */ |
376 | smb_put_dstring(mbp, vcp, "NetBSD" , SMB_CS_NONE); /* Client's OS */ |
377 | smb_put_dstring(mbp, vcp, "NETSMB" , SMB_CS_NONE); /* Client name */ |
378 | } |
379 | smb_rq_bend(rqp); |
380 | if (ntencpass) |
381 | free(ntencpass, M_SMBTEMP); |
382 | error = smb_rq_simple(rqp); |
383 | SMBSDEBUG(("%d\n" , error)); |
384 | if (error) { |
385 | if (error == EACCES) |
386 | error = EAUTH; |
387 | goto bad; |
388 | } |
389 | vcp->vc_smbuid = rqp->sr_rpuid; |
390 | bad: |
391 | free(encpass, M_SMBTEMP); |
392 | free(pbuf, M_SMBTEMP); |
393 | smb_rq_done(rqp); |
394 | if (error && !upper && vcp->vc_sopt.sv_sm & SMB_SM_USER) { |
395 | upper = 1; |
396 | goto again; |
397 | } |
398 | return error; |
399 | } |
400 | |
401 | int |
402 | smb_smb_ssnclose(struct smb_vc *vcp, struct smb_cred *scred) |
403 | { |
404 | struct smb_rq *rqp; |
405 | struct mbchain *mbp; |
406 | int error; |
407 | |
408 | KASSERT(scred->scr_l == vcp->vc_iod->iod_l); |
409 | |
410 | if (vcp->vc_smbuid == SMB_UID_UNKNOWN) |
411 | return 0; |
412 | |
413 | error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_LOGOFF_ANDX, scred, &rqp); |
414 | if (error) |
415 | return error; |
416 | mbp = &rqp->sr_rq; |
417 | smb_rq_wstart(rqp); |
418 | mb_put_uint8(mbp, 0xff); |
419 | mb_put_uint8(mbp, 0); |
420 | mb_put_uint16le(mbp, 0); |
421 | smb_rq_wend(rqp); |
422 | smb_rq_bstart(rqp); |
423 | smb_rq_bend(rqp); |
424 | error = smb_rq_simple(rqp); |
425 | SMBSDEBUG(("%d\n" , error)); |
426 | smb_rq_done(rqp); |
427 | return error; |
428 | } |
429 | |
430 | static const char * |
431 | smb_share_typename(int stype) |
432 | { |
433 | static const char smb_any_share[] = "?????" ; |
434 | const char *pp; |
435 | |
436 | switch (stype) { |
437 | case SMB_ST_DISK: |
438 | pp = "A:" ; |
439 | break; |
440 | case SMB_ST_PRINTER: |
441 | pp = smb_any_share; /* can't use LPT: here... */ |
442 | break; |
443 | case SMB_ST_PIPE: |
444 | pp = "IPC" ; |
445 | break; |
446 | case SMB_ST_COMM: |
447 | pp = "COMM" ; |
448 | break; |
449 | case SMB_ST_ANY: |
450 | default: |
451 | pp = smb_any_share; |
452 | break; |
453 | } |
454 | return pp; |
455 | } |
456 | |
457 | int |
458 | smb_smb_treeconnect(struct smb_share *ssp, struct smb_cred *scred) |
459 | { |
460 | struct smb_vc *vcp; |
461 | struct smb_rq rq, *rqp = &rq; |
462 | struct mbchain *mbp; |
463 | const char *pp; |
464 | char *pbuf, *encpass; |
465 | int error, plen, caseopt, upper; |
466 | |
467 | upper = 0; |
468 | |
469 | again: |
470 | |
471 | #if 0 |
472 | /* Disable Unicode for SMB_COM_TREE_CONNECT_ANDX requests */ |
473 | if (SSTOVC(ssp)->vc_hflags2 & SMB_FLAGS2_UNICODE) { |
474 | vcp = SSTOVC(ssp); |
475 | if (vcp->vc_toserver) { |
476 | iconv_close(vcp->vc_toserver); |
477 | /* Use NULL until UTF-8 -> ASCII works */ |
478 | vcp->vc_toserver = NULL; |
479 | } |
480 | if (vcp->vc_tolocal) { |
481 | iconv_close(vcp->vc_tolocal); |
482 | /* Use NULL until ASCII -> UTF-8 works*/ |
483 | vcp->vc_tolocal = NULL; |
484 | } |
485 | vcp->vc_hflags2 &= ~SMB_FLAGS2_UNICODE; |
486 | } |
487 | #endif |
488 | |
489 | ssp->ss_tid = SMB_TID_UNKNOWN; |
490 | error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_TREE_CONNECT_ANDX, scred, &rqp); |
491 | if (error) |
492 | return error; |
493 | vcp = rqp->sr_vc; |
494 | caseopt = SMB_CS_NONE; |
495 | if (vcp->vc_sopt.sv_sm & SMB_SM_USER) { |
496 | plen = 1; |
497 | pp = "" ; |
498 | pbuf = NULL; |
499 | encpass = NULL; |
500 | } else { |
501 | pbuf = malloc(SMB_MAXPASSWORDLEN + 1, M_SMBTEMP, M_WAITOK); |
502 | encpass = malloc(24, M_SMBTEMP, M_WAITOK); |
503 | /* |
504 | * We try w/o uppercasing first so Samba mixed case |
505 | * passwords work. If that fails we come back and try |
506 | * uppercasing to satisfy OS/2 and Windows for Workgroups. |
507 | */ |
508 | if (upper) { |
509 | iconv_convstr(vcp->vc_toupper, pbuf, |
510 | smb_share_getpass(ssp), SMB_MAXPASSWORDLEN + 1); |
511 | } else { |
512 | strlcpy(pbuf, smb_share_getpass(ssp), |
513 | SMB_MAXPASSWORDLEN + 1); |
514 | } |
515 | if (vcp->vc_sopt.sv_sm & SMB_SM_ENCRYPT) { |
516 | plen = 24; |
517 | smb_encrypt(pbuf, vcp->vc_ch, encpass); |
518 | pp = encpass; |
519 | } else { |
520 | plen = strlen(pbuf) + 1; |
521 | pp = pbuf; |
522 | } |
523 | } |
524 | mbp = &rqp->sr_rq; |
525 | smb_rq_wstart(rqp); |
526 | mb_put_uint8(mbp, 0xff); |
527 | mb_put_uint8(mbp, 0); |
528 | mb_put_uint16le(mbp, 0); |
529 | mb_put_uint16le(mbp, 0); /* Flags */ |
530 | mb_put_uint16le(mbp, plen); |
531 | smb_rq_wend(rqp); |
532 | smb_rq_bstart(rqp); |
533 | mb_put_mem(mbp, pp, plen, MB_MSYSTEM); |
534 | smb_put_dmem(mbp, vcp, "\\\\" , 2, caseopt); |
535 | pp = vcp->vc_srvname; |
536 | smb_put_dmem(mbp, vcp, pp, strlen(pp), caseopt); |
537 | smb_put_dmem(mbp, vcp, "\\" , 1, caseopt); |
538 | pp = ssp->ss_name; |
539 | smb_put_dstring(mbp, vcp, pp, caseopt); |
540 | pp = smb_share_typename(ssp->ss_type); |
541 | smb_put_dstring(mbp, vcp, pp, caseopt); |
542 | smb_rq_bend(rqp); |
543 | error = smb_rq_simple(rqp); |
544 | SMBSDEBUG(("%d\n" , error)); |
545 | if (error) |
546 | goto bad; |
547 | ssp->ss_tid = rqp->sr_rptid; |
548 | ssp->ss_vcgenid = vcp->vc_genid; |
549 | ssp->ss_flags |= SMBS_CONNECTED; |
550 | bad: |
551 | if (encpass) |
552 | free(encpass, M_SMBTEMP); |
553 | if (pbuf) |
554 | free(pbuf, M_SMBTEMP); |
555 | smb_rq_done(rqp); |
556 | if (error && !upper) { |
557 | upper = 1; |
558 | goto again; |
559 | } |
560 | return error; |
561 | } |
562 | |
563 | int |
564 | smb_smb_treedisconnect(struct smb_share *ssp, struct smb_cred *scred) |
565 | { |
566 | struct smb_rq *rqp; |
567 | int error; |
568 | |
569 | if (ssp->ss_tid == SMB_TID_UNKNOWN) |
570 | return 0; |
571 | error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_TREE_DISCONNECT, scred, &rqp); |
572 | if (error) |
573 | return error; |
574 | smb_rq_wstart(rqp); |
575 | smb_rq_wend(rqp); |
576 | smb_rq_bstart(rqp); |
577 | smb_rq_bend(rqp); |
578 | error = smb_rq_simple(rqp); |
579 | SMBSDEBUG(("%d\n" , error)); |
580 | smb_rq_done(rqp); |
581 | ssp->ss_tid = SMB_TID_UNKNOWN; |
582 | return error; |
583 | } |
584 | |
585 | static inline int |
586 | smb_smb_readx(struct smb_share *ssp, u_int16_t fid, size_t *len, size_t *rresid, |
587 | struct uio *uio, struct smb_cred *scred) |
588 | { |
589 | struct smb_rq *rqp; |
590 | struct mbchain *mbp; |
591 | struct mdchain *mdp; |
592 | u_int8_t wc; |
593 | int error; |
594 | u_int16_t residhi, residlo, off, doff; |
595 | u_int32_t resid; |
596 | |
597 | if (!(SMB_CAPS(SSTOVC(ssp)) & SMB_CAP_LARGE_FILES) && |
598 | uio->uio_offset >= (1LL << 32)) { |
599 | /* Cannot read at/beyond 4G */ |
600 | return (EFBIG); |
601 | } |
602 | |
603 | if (!(SMB_CAPS(SSTOVC(ssp)) & SMB_CAP_LARGE_READX)) { |
604 | size_t blksz; |
605 | |
606 | blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 64; |
607 | if (blksz > 0xffff) |
608 | blksz = 0xffff; |
609 | |
610 | *len = min(blksz, *len); |
611 | } |
612 | |
613 | error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_READ_ANDX, scred, &rqp); |
614 | if (error) |
615 | return error; |
616 | smb_rq_getrequest(rqp, &mbp); |
617 | smb_rq_wstart(rqp); |
618 | mb_put_uint8(mbp, 0xff); /* no secondary command */ |
619 | mb_put_uint8(mbp, 0); /* MBZ */ |
620 | mb_put_uint16le(mbp, 0); /* offset to secondary */ |
621 | mb_put_mem(mbp, (void *)&fid, sizeof(fid), MB_MSYSTEM); |
622 | mb_put_uint32le(mbp, uio->uio_offset); |
623 | *len = min(SSTOVC(ssp)->vc_rxmax, *len); |
624 | mb_put_uint16le(mbp, *len); /* MaxCount */ |
625 | mb_put_uint16le(mbp, *len); /* MinCount (only indicates blocking) */ |
626 | mb_put_uint32le(mbp, *len >> 16); /* MaxCountHigh */ |
627 | mb_put_uint16le(mbp, *len); /* Remaining ("obsolete") */ |
628 | mb_put_uint32le(mbp, uio->uio_offset >> 32); /* OffsetHigh */ |
629 | smb_rq_wend(rqp); |
630 | smb_rq_bstart(rqp); |
631 | smb_rq_bend(rqp); |
632 | do { |
633 | error = smb_rq_simple(rqp); |
634 | if (error) |
635 | break; |
636 | smb_rq_getreply(rqp, &mdp); |
637 | off = SMB_HDRLEN; |
638 | md_get_uint8(mdp, &wc); |
639 | off++; |
640 | if (wc != 12) { |
641 | error = EBADRPC; |
642 | break; |
643 | } |
644 | md_get_uint8(mdp, NULL); |
645 | off++; |
646 | md_get_uint8(mdp, NULL); |
647 | off++; |
648 | md_get_uint16(mdp, NULL); |
649 | off += 2; |
650 | md_get_uint16(mdp, NULL); |
651 | off += 2; |
652 | md_get_uint16(mdp, NULL); /* data compaction mode */ |
653 | off += 2; |
654 | md_get_uint16(mdp, NULL); |
655 | off += 2; |
656 | md_get_uint16le(mdp, &residlo); |
657 | off += 2; |
658 | md_get_uint16le(mdp, &doff); /* data offset */ |
659 | off += 2; |
660 | md_get_uint16le(mdp, &residhi); |
661 | off += 2; |
662 | resid = (residhi << 16) | residlo; |
663 | md_get_mem(mdp, NULL, 4 * 2, MB_MSYSTEM); |
664 | off += 4*2; |
665 | md_get_uint16(mdp, NULL); /* ByteCount */ |
666 | off += 2; |
667 | if (doff > off) /* pad byte(s)? */ |
668 | md_get_mem(mdp, NULL, doff - off, MB_MSYSTEM); |
669 | if (resid == 0) { |
670 | *rresid = resid; |
671 | break; |
672 | } |
673 | error = md_get_uio(mdp, uio, resid); |
674 | if (error) |
675 | break; |
676 | *rresid = resid; |
677 | } while(0); |
678 | smb_rq_done(rqp); |
679 | return (error); |
680 | } |
681 | |
682 | static inline int |
683 | smb_smb_writex(struct smb_share *ssp, u_int16_t fid, size_t *len, size_t *rresid, |
684 | struct uio *uio, struct smb_cred *scred) |
685 | { |
686 | struct smb_rq *rqp; |
687 | struct mbchain *mbp; |
688 | struct mdchain *mdp; |
689 | int error; |
690 | u_int8_t wc; |
691 | u_int16_t resid; |
692 | |
693 | if (!(SMB_CAPS(SSTOVC(ssp)) & SMB_CAP_LARGE_FILES) && |
694 | uio->uio_offset >= (1LL << 32)) { |
695 | /* Cannot write at/beyond 4G */ |
696 | return (EFBIG); |
697 | } |
698 | |
699 | if (SMB_CAPS(SSTOVC(ssp)) & SMB_CAP_LARGE_WRITEX) { |
700 | *len = min(SSTOVC(ssp)->vc_wxmax, *len); |
701 | } else { |
702 | size_t blksz; |
703 | |
704 | blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 64; |
705 | if (blksz > 0xffff) |
706 | blksz = 0xffff; |
707 | |
708 | *len = min(blksz, *len); |
709 | } |
710 | |
711 | error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_WRITE_ANDX, scred, &rqp); |
712 | if (error != 0) |
713 | return (error); |
714 | smb_rq_getrequest(rqp, &mbp); |
715 | smb_rq_wstart(rqp); |
716 | mb_put_uint8(mbp, 0xff); /* no secondary command */ |
717 | mb_put_uint8(mbp, 0); /* MBZ */ |
718 | mb_put_uint16le(mbp, 0); /* offset to secondary */ |
719 | mb_put_mem(mbp, (void *)&fid, sizeof(fid), MB_MSYSTEM); |
720 | mb_put_uint32le(mbp, uio->uio_offset); |
721 | mb_put_uint32le(mbp, 0); /* MBZ (timeout) */ |
722 | mb_put_uint16le(mbp, 0); /* !write-thru */ |
723 | mb_put_uint16le(mbp, 0); |
724 | mb_put_uint16le(mbp, *len >> 16); |
725 | mb_put_uint16le(mbp, *len); |
726 | mb_put_uint16le(mbp, 64); /* data offset from header start */ |
727 | mb_put_uint32le(mbp, uio->uio_offset >> 32); /* OffsetHigh */ |
728 | smb_rq_wend(rqp); |
729 | smb_rq_bstart(rqp); |
730 | do { |
731 | mb_put_uint8(mbp, 0xee); /* mimic xp pad byte! */ |
732 | error = mb_put_uio(mbp, uio, *len); |
733 | if (error) |
734 | break; |
735 | smb_rq_bend(rqp); |
736 | error = smb_rq_simple(rqp); |
737 | if (error) |
738 | break; |
739 | smb_rq_getreply(rqp, &mdp); |
740 | md_get_uint8(mdp, &wc); |
741 | if (wc != 6) { |
742 | error = EBADRPC; |
743 | break; |
744 | } |
745 | md_get_uint8(mdp, NULL); |
746 | md_get_uint8(mdp, NULL); |
747 | md_get_uint16(mdp, NULL); |
748 | md_get_uint16le(mdp, &resid); |
749 | *rresid = resid; |
750 | } while(0); |
751 | |
752 | smb_rq_done(rqp); |
753 | return (error); |
754 | } |
755 | |
756 | static inline int |
757 | smb_smb_read(struct smb_share *ssp, u_int16_t fid, |
758 | size_t *len, size_t *rresid, struct uio *uio, struct smb_cred *scred) |
759 | { |
760 | struct smb_rq *rqp; |
761 | struct mbchain *mbp; |
762 | struct mdchain *mdp; |
763 | u_int16_t resid, bc; |
764 | u_int8_t wc; |
765 | int error, rlen, blksz; |
766 | |
767 | /* Cannot read at/beyond 4G */ |
768 | if (uio->uio_offset >= (1LL << 32)) |
769 | return (EFBIG); |
770 | |
771 | error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_READ, scred, &rqp); |
772 | if (error) |
773 | return error; |
774 | |
775 | blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 16; |
776 | rlen = *len = min(blksz, *len); |
777 | |
778 | smb_rq_getrequest(rqp, &mbp); |
779 | smb_rq_wstart(rqp); |
780 | mb_put_mem(mbp, (void *)&fid, sizeof(fid), MB_MSYSTEM); |
781 | mb_put_uint16le(mbp, rlen); |
782 | mb_put_uint32le(mbp, uio->uio_offset); |
783 | mb_put_uint16le(mbp, min(uio->uio_resid, 0xffff)); |
784 | smb_rq_wend(rqp); |
785 | smb_rq_bstart(rqp); |
786 | smb_rq_bend(rqp); |
787 | do { |
788 | error = smb_rq_simple(rqp); |
789 | if (error) |
790 | break; |
791 | smb_rq_getreply(rqp, &mdp); |
792 | md_get_uint8(mdp, &wc); |
793 | if (wc != 5) { |
794 | error = EBADRPC; |
795 | break; |
796 | } |
797 | md_get_uint16le(mdp, &resid); |
798 | md_get_mem(mdp, NULL, 4 * 2, MB_MSYSTEM); |
799 | md_get_uint16le(mdp, &bc); |
800 | md_get_uint8(mdp, NULL); /* ignore buffer type */ |
801 | md_get_uint16le(mdp, &resid); |
802 | if (resid == 0) { |
803 | *rresid = resid; |
804 | break; |
805 | } |
806 | error = md_get_uio(mdp, uio, resid); |
807 | if (error) |
808 | break; |
809 | *rresid = resid; |
810 | } while(0); |
811 | smb_rq_done(rqp); |
812 | return error; |
813 | } |
814 | |
815 | int |
816 | smb_read(struct smb_share *ssp, u_int16_t fid, struct uio *uio, |
817 | struct smb_cred *scred) |
818 | { |
819 | size_t tsize, len, resid; |
820 | int error = 0; |
821 | bool rx = (SMB_CAPS(SSTOVC(ssp)) & |
822 | (SMB_CAP_LARGE_FILES|SMB_CAP_LARGE_READX)) != 0; |
823 | |
824 | resid = 0; /* XXX gcc */ |
825 | |
826 | tsize = uio->uio_resid; |
827 | while (tsize > 0) { |
828 | len = tsize; |
829 | if (rx) |
830 | error = smb_smb_readx(ssp, fid, &len, &resid, uio, scred); |
831 | else |
832 | error = smb_smb_read(ssp, fid, &len, &resid, uio, scred); |
833 | if (error) |
834 | break; |
835 | tsize -= resid; |
836 | if (resid < len) |
837 | break; |
838 | } |
839 | return error; |
840 | } |
841 | |
842 | static inline int |
843 | smb_smb_write(struct smb_share *ssp, u_int16_t fid, size_t *len, size_t *rresid, |
844 | struct uio *uio, struct smb_cred *scred) |
845 | { |
846 | struct smb_rq *rqp; |
847 | struct mbchain *mbp; |
848 | struct mdchain *mdp; |
849 | u_int16_t resid; |
850 | u_int8_t wc; |
851 | int error, blksz; |
852 | |
853 | /* Cannot write at/beyond 4G */ |
854 | if (uio->uio_offset >= (1LL << 32)) |
855 | return (EFBIG); |
856 | |
857 | blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 16; |
858 | if (blksz > 0xffff) |
859 | blksz = 0xffff; |
860 | |
861 | resid = *len = min(blksz, *len); |
862 | |
863 | error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_WRITE, scred, &rqp); |
864 | if (error) |
865 | return error; |
866 | smb_rq_getrequest(rqp, &mbp); |
867 | smb_rq_wstart(rqp); |
868 | mb_put_mem(mbp, (void *)&fid, sizeof(fid), MB_MSYSTEM); |
869 | mb_put_uint16le(mbp, resid); |
870 | mb_put_uint32le(mbp, uio->uio_offset); |
871 | mb_put_uint16le(mbp, min(uio->uio_resid, 0xffff)); |
872 | smb_rq_wend(rqp); |
873 | smb_rq_bstart(rqp); |
874 | mb_put_uint8(mbp, SMB_DT_DATA); |
875 | mb_put_uint16le(mbp, resid); |
876 | do { |
877 | error = mb_put_uio(mbp, uio, resid); |
878 | if (error) |
879 | break; |
880 | smb_rq_bend(rqp); |
881 | error = smb_rq_simple(rqp); |
882 | if (error) |
883 | break; |
884 | smb_rq_getreply(rqp, &mdp); |
885 | md_get_uint8(mdp, &wc); |
886 | if (wc != 1) { |
887 | error = EBADRPC; |
888 | break; |
889 | } |
890 | md_get_uint16le(mdp, &resid); |
891 | *rresid = resid; |
892 | } while(0); |
893 | smb_rq_done(rqp); |
894 | return error; |
895 | } |
896 | |
897 | int |
898 | smb_write(struct smb_share *ssp, u_int16_t fid, struct uio *uio, |
899 | struct smb_cred *scred) |
900 | { |
901 | int error = 0; |
902 | size_t len, tsize, resid; |
903 | bool wx = (SMB_CAPS(SSTOVC(ssp)) & |
904 | (SMB_CAP_LARGE_FILES|SMB_CAP_LARGE_WRITEX)) != 0; |
905 | |
906 | resid = 0; /* XXX gcc */ |
907 | |
908 | tsize = uio->uio_resid; |
909 | while (tsize > 0) { |
910 | len = tsize; |
911 | if (wx) |
912 | error = smb_smb_writex(ssp, fid, &len, &resid, uio, scred); |
913 | else |
914 | error = smb_smb_write(ssp, fid, &len, &resid, uio, scred); |
915 | if (error != 0) |
916 | break; |
917 | if (resid < len) { |
918 | error = EIO; |
919 | break; |
920 | } |
921 | tsize -= resid; |
922 | } |
923 | return error; |
924 | } |
925 | |
926 | #if 0 |
927 | int |
928 | smb_smb_echo(struct smb_vc *vcp, struct smb_cred *scred) |
929 | { |
930 | struct smb_rq *rqp; |
931 | struct mbchain *mbp; |
932 | int error; |
933 | |
934 | error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_ECHO, scred, &rqp); |
935 | if (error) |
936 | return error; |
937 | mbp = &rqp->sr_rq; |
938 | smb_rq_wstart(rqp); |
939 | mb_put_uint16le(mbp, 1); |
940 | smb_rq_wend(rqp); |
941 | smb_rq_bstart(rqp); |
942 | mb_put_uint32le(mbp, 0); |
943 | smb_rq_bend(rqp); |
944 | error = smb_rq_simple(rqp); |
945 | SMBSDEBUG(("%d\n" , error)); |
946 | smb_rq_done(rqp); |
947 | return error; |
948 | } |
949 | #endif |
950 | |