| 1 | /* |
| 2 | * Copyright (c) 2000-2001 Boris Popov |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. All advertising materials mentioning features or use of this software |
| 14 | * must display the following acknowledgement: |
| 15 | * This product includes software developed by Boris Popov. |
| 16 | * 4. Neither the name of the author nor the names of any co-contributors |
| 17 | * may be used to endorse or promote products derived from this software |
| 18 | * without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 30 | * SUCH DAMAGE. |
| 31 | * |
| 32 | * $FreeBSD: src/sys/netsmb/smb_smb.c,v 1.1.2.3 2002/12/14 14:44:19 fjoe Exp $ |
| 33 | * $DragonFly: src/sys/netproto/smb/smb_smb.c,v 1.3 2003/06/25 03:56:06 dillon Exp $ |
| 34 | */ |
| 35 | /* |
| 36 | * various SMB requests. Most of the routines merely packs data into mbufs. |
| 37 | */ |
| 38 | #include <sys/param.h> |
| 39 | #include <sys/systm.h> |
| 40 | #include <sys/kernel.h> |
| 41 | #include <sys/malloc.h> |
| 42 | #include <sys/proc.h> |
| 43 | #include <sys/lock.h> |
| 44 | #include <sys/sysctl.h> |
| 45 | #include <sys/socket.h> |
| 46 | #include <sys/uio.h> |
| 47 | |
| 48 | #include <sys/iconv.h> |
| 49 | |
| 50 | #include <netsmb/smb.h> |
| 51 | #include <netsmb/smb_subr.h> |
| 52 | #include <netsmb/smb_rq.h> |
| 53 | #include <netsmb/smb_conn.h> |
| 54 | #include <netsmb/smb_tran.h> |
| 55 | |
| 56 | struct smb_dialect { |
| 57 | int d_id; |
| 58 | const char * d_name; |
| 59 | }; |
| 60 | |
| 61 | static struct smb_dialect smb_dialects[] = { |
| 62 | {SMB_DIALECT_CORE, "PC NETWORK PROGRAM 1.0"}, |
| 63 | {SMB_DIALECT_COREPLUS, "MICROSOFT NETWORKS 1.03"}, |
| 64 | {SMB_DIALECT_LANMAN1_0, "MICROSOFT NETWORKS 3.0"}, |
| 65 | {SMB_DIALECT_LANMAN1_0, "LANMAN1.0"}, |
| 66 | {SMB_DIALECT_LANMAN2_0, "LM1.2X002"}, |
| 67 | {SMB_DIALECT_LANMAN2_0, "Samba"}, |
| 68 | {SMB_DIALECT_NTLM0_12, "NT LANMAN 1.0"}, |
| 69 | {SMB_DIALECT_NTLM0_12, "NT LM 0.12"}, |
| 70 | {-1, NULL} |
| 71 | }; |
| 72 | |
| 73 | #define SMB_DIALECT_MAX (sizeof(smb_dialects) / sizeof(struct smb_dialect) - 2) |
| 74 | |
| 75 | static int |
| 76 | smb_smb_nomux(struct smb_vc *vcp, struct smb_cred *scred, const char *name) |
| 77 | { |
| 78 | if (scred->scr_td == vcp->vc_iod->iod_td) |
| 79 | return 0; |
| 80 | SMBERROR("wrong function called(%s)\n", name); |
| 81 | return EINVAL; |
| 82 | } |
| 83 | |
| 84 | int |
| 85 | smb_smb_negotiate(struct smb_vc *vcp, struct smb_cred *scred) |
| 86 | { |
| 87 | struct smb_dialect *dp; |
| 88 | struct smb_sopt *sp = NULL; |
| 89 | struct smb_rq *rqp; |
| 90 | struct mbchain *mbp; |
| 91 | struct mdchain *mdp; |
| 92 | u_int8_t wc, stime[8], sblen; |
| 93 | u_int16_t dindex, tw, tw1, swlen, bc; |
| 94 | int error, maxqsz; |
| 95 | |
| 96 | if (smb_smb_nomux(vcp, scred, __FUNCTION__) != 0) |
| 97 | return EINVAL; |
| 98 | vcp->vc_hflags = 0; |
| 99 | vcp->vc_hflags2 = 0; |
| 100 | vcp->obj.co_flags &= ~(SMBV_ENCRYPT); |
| 101 | sp = &vcp->vc_sopt; |
| 102 | bzero(sp, sizeof(struct smb_sopt)); |
| 103 | error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_NEGOTIATE, scred, &rqp); |
| 104 | if (error) |
| 105 | return error; |
| 106 | smb_rq_getrequest(rqp, &mbp); |
| 107 | smb_rq_wstart(rqp); |
| 108 | smb_rq_wend(rqp); |
| 109 | smb_rq_bstart(rqp); |
| 110 | for(dp = smb_dialects; dp->d_id != -1; dp++) { |
| 111 | mb_put_uint8(mbp, SMB_DT_DIALECT); |
| 112 | smb_put_dstring(mbp, vcp, dp->d_name, SMB_CS_NONE); |
| 113 | } |
| 114 | smb_rq_bend(rqp); |
| 115 | error = smb_rq_simple(rqp); |
| 116 | SMBSDEBUG("%d\n", error); |
| 117 | if (error) |
| 118 | goto bad; |
| 119 | smb_rq_getreply(rqp, &mdp); |
| 120 | do { |
| 121 | error = md_get_uint8(mdp, &wc); |
| 122 | if (error) |
| 123 | break; |
| 124 | error = md_get_uint16le(mdp, &dindex); |
| 125 | if (error) |
| 126 | break; |
| 127 | if (dindex > 7) { |
| 128 | SMBERROR("Don't know how to talk with server %s (%d)\n", "xxx", dindex); |
| 129 | error = EBADRPC; |
| 130 | break; |
| 131 | } |
| 132 | dp = smb_dialects + dindex; |
| 133 | sp->sv_proto = dp->d_id; |
| 134 | SMBSDEBUG("Dialect %s (%d, %d)\n", dp->d_name, dindex, wc); |
| 135 | error = EBADRPC; |
| 136 | if (dp->d_id >= SMB_DIALECT_NTLM0_12) { |
| 137 | if (wc != 17) |
| 138 | break; |
| 139 | md_get_uint8(mdp, &sp->sv_sm); |
| 140 | md_get_uint16le(mdp, &sp->sv_maxmux); |
| 141 | md_get_uint16le(mdp, &sp->sv_maxvcs); |
| 142 | md_get_uint32le(mdp, &sp->sv_maxtx); |
| 143 | md_get_uint32le(mdp, &sp->sv_maxraw); |
| 144 | md_get_uint32le(mdp, &sp->sv_skey); |
| 145 | md_get_uint32le(mdp, &sp->sv_caps); |
| 146 | md_get_mem(mdp, stime, 8, MB_MSYSTEM); |
| 147 | md_get_uint16le(mdp, (u_int16_t*)&sp->sv_tz); |
| 148 | md_get_uint8(mdp, &sblen); |
| 149 | if (sblen && (sp->sv_sm & SMB_SM_ENCRYPT)) { |
| 150 | if (sblen != SMB_MAXCHALLENGELEN) { |
| 151 | SMBERROR("Unexpected length of security blob (%d)\n", sblen); |
| 152 | break; |
| 153 | } |
| 154 | error = md_get_uint16(mdp, &bc); |
| 155 | if (error) |
| 156 | break; |
| 157 | if (sp->sv_caps & SMB_CAP_EXT_SECURITY) |
| 158 | md_get_mem(mdp, NULL, 16, MB_MSYSTEM); |
| 159 | error = md_get_mem(mdp, vcp->vc_ch, sblen, MB_MSYSTEM); |
| 160 | if (error) |
| 161 | break; |
| 162 | vcp->vc_chlen = sblen; |
| 163 | vcp->obj.co_flags |= SMBV_ENCRYPT; |
| 164 | } |
| 165 | vcp->vc_hflags2 |= SMB_FLAGS2_KNOWS_LONG_NAMES; |
| 166 | if (dp->d_id == SMB_DIALECT_NTLM0_12 && |
| 167 | sp->sv_maxtx < 4096 && |
| 168 | (sp->sv_caps & SMB_CAP_NT_SMBS) == 0) { |
| 169 | vcp->obj.co_flags |= SMBV_WIN95; |
| 170 | SMBSDEBUG("Win95 detected\n"); |
| 171 | } |
| 172 | } else if (dp->d_id > SMB_DIALECT_CORE) { |
| 173 | md_get_uint16le(mdp, &tw); |
| 174 | sp->sv_sm = tw; |
| 175 | md_get_uint16le(mdp, &tw); |
| 176 | sp->sv_maxtx = tw; |
| 177 | md_get_uint16le(mdp, &sp->sv_maxmux); |
| 178 | md_get_uint16le(mdp, &sp->sv_maxvcs); |
| 179 | md_get_uint16le(mdp, &tw); /* rawmode */ |
| 180 | md_get_uint32le(mdp, &sp->sv_skey); |
| 181 | if (wc == 13) { /* >= LANMAN1 */ |
| 182 | md_get_uint16(mdp, &tw); /* time */ |
| 183 | md_get_uint16(mdp, &tw1); /* date */ |
| 184 | md_get_uint16le(mdp, (u_int16_t*)&sp->sv_tz); |
| 185 | md_get_uint16le(mdp, &swlen); |
| 186 | if (swlen > SMB_MAXCHALLENGELEN) |
| 187 | break; |
| 188 | md_get_uint16(mdp, NULL); /* mbz */ |
| 189 | if (md_get_uint16(mdp, &bc) != 0) |
| 190 | break; |
| 191 | if (bc < swlen) |
| 192 | break; |
| 193 | if (swlen && (sp->sv_sm & SMB_SM_ENCRYPT)) { |
| 194 | error = md_get_mem(mdp, vcp->vc_ch, swlen, MB_MSYSTEM); |
| 195 | if (error) |
| 196 | break; |
| 197 | vcp->vc_chlen = swlen; |
| 198 | vcp->obj.co_flags |= SMBV_ENCRYPT; |
| 199 | } |
| 200 | } |
| 201 | vcp->vc_hflags2 |= SMB_FLAGS2_KNOWS_LONG_NAMES; |
| 202 | } else { /* an old CORE protocol */ |
| 203 | sp->sv_maxmux = 1; |
| 204 | } |
| 205 | error = 0; |
| 206 | } while (0); |
| 207 | if (error == 0) { |
| 208 | vcp->vc_maxvcs = sp->sv_maxvcs; |
| 209 | if (vcp->vc_maxvcs <= 1) { |
| 210 | if (vcp->vc_maxvcs == 0) |
| 211 | vcp->vc_maxvcs = 1; |
| 212 | } |
| 213 | if (sp->sv_maxtx <= 0 || sp->sv_maxtx > 0xffff) |
| 214 | sp->sv_maxtx = 1024; |
| 215 | SMB_TRAN_GETPARAM(vcp, SMBTP_SNDSZ, &maxqsz); |
| 216 | vcp->vc_txmax = min(sp->sv_maxtx, maxqsz); |
| 217 | SMBSDEBUG("TZ = %d\n", sp->sv_tz); |
| 218 | SMBSDEBUG("CAPS = %x\n", sp->sv_caps); |
| 219 | SMBSDEBUG("MAXMUX = %d\n", sp->sv_maxmux); |
| 220 | SMBSDEBUG("MAXVCS = %d\n", sp->sv_maxvcs); |
| 221 | SMBSDEBUG("MAXRAW = %d\n", sp->sv_maxraw); |
| 222 | SMBSDEBUG("MAXTX = %d\n", sp->sv_maxtx); |
| 223 | } |
| 224 | bad: |
| 225 | smb_rq_done(rqp); |
| 226 | return error; |
| 227 | } |
| 228 | |
| 229 | int |
| 230 | smb_smb_ssnsetup(struct smb_vc *vcp, struct smb_cred *scred) |
| 231 | { |
| 232 | struct smb_rq *rqp; |
| 233 | struct mbchain *mbp; |
| 234 | /* u_int8_t wc; |
| 235 | u_int16_t tw, tw1;*/ |
| 236 | smb_uniptr unipp, ntencpass = NULL; |
| 237 | char *pp, *up, *pbuf, *encpass; |
| 238 | int error, plen, uniplen, ulen; |
| 239 | |
| 240 | vcp->vc_smbuid = SMB_UID_UNKNOWN; |
| 241 | |
| 242 | if (smb_smb_nomux(vcp, scred, __FUNCTION__) != 0) |
| 243 | return EINVAL; |
| 244 | |
| 245 | error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_SESSION_SETUP_ANDX, scred, &rqp); |
| 246 | if (error) |
| 247 | return error; |
| 248 | pbuf = malloc(SMB_MAXPASSWORDLEN + 1, M_SMBTEMP, M_WAITOK); |
| 249 | encpass = malloc(24, M_SMBTEMP, M_WAITOK); |
| 250 | if (vcp->vc_sopt.sv_sm & SMB_SM_USER) { |
| 251 | iconv_convstr(vcp->vc_toupper, pbuf, smb_vc_getpass(vcp)); |
| 252 | iconv_convstr(vcp->vc_toserver, pbuf, pbuf); |
| 253 | if (vcp->vc_sopt.sv_sm & SMB_SM_ENCRYPT) { |
| 254 | uniplen = plen = 24; |
| 255 | smb_encrypt(pbuf, vcp->vc_ch, encpass); |
| 256 | ntencpass = malloc(uniplen, M_SMBTEMP, M_WAITOK); |
| 257 | iconv_convstr(vcp->vc_toserver, pbuf, smb_vc_getpass(vcp)); |
| 258 | smb_ntencrypt(pbuf, vcp->vc_ch, (u_char*)ntencpass); |
| 259 | pp = encpass; |
| 260 | unipp = ntencpass; |
| 261 | } else { |
| 262 | plen = strlen(pbuf) + 1; |
| 263 | pp = pbuf; |
| 264 | uniplen = plen * 2; |
| 265 | ntencpass = malloc(uniplen, M_SMBTEMP, M_WAITOK); |
| 266 | smb_strtouni(ntencpass, smb_vc_getpass(vcp)); |
| 267 | plen--; |
| 268 | |
| 269 | /* |
| 270 | * The uniplen is zeroed because Samba cannot deal |
| 271 | * with this 2nd cleartext password. This Samba |
| 272 | * "bug" is actually a workaround for problems in |
| 273 | * Microsoft clients. |
| 274 | */ |
| 275 | uniplen = 0/*-= 2*/; |
| 276 | unipp = ntencpass; |
| 277 | } |
| 278 | } else { |
| 279 | /* |
| 280 | * In the share security mode password will be used |
| 281 | * only in the tree authentication |
| 282 | */ |
| 283 | pp = ""; |
| 284 | plen = 1; |
| 285 | unipp = &smb_unieol; |
| 286 | uniplen = 0 /* sizeof(smb_unieol) */; |
| 287 | } |
| 288 | smb_rq_wstart(rqp); |
| 289 | mbp = &rqp->sr_rq; |
| 290 | up = vcp->vc_username; |
| 291 | ulen = strlen(up) + 1; |
| 292 | mb_put_uint8(mbp, 0xff); |
| 293 | mb_put_uint8(mbp, 0); |
| 294 | mb_put_uint16le(mbp, 0); |
| 295 | mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxtx); |
| 296 | mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxmux); |
| 297 | mb_put_uint16le(mbp, vcp->vc_number); |
| 298 | mb_put_uint32le(mbp, vcp->vc_sopt.sv_skey); |
| 299 | mb_put_uint16le(mbp, plen); |
| 300 | if (SMB_DIALECT(vcp) < SMB_DIALECT_NTLM0_12) { |
| 301 | mb_put_uint32le(mbp, 0); |
| 302 | smb_rq_wend(rqp); |
| 303 | smb_rq_bstart(rqp); |
| 304 | mb_put_mem(mbp, pp, plen, MB_MSYSTEM); |
| 305 | smb_put_dstring(mbp, vcp, up, SMB_CS_NONE); |
| 306 | } else { |
| 307 | mb_put_uint16le(mbp, uniplen); |
| 308 | mb_put_uint32le(mbp, 0); /* reserved */ |
| 309 | mb_put_uint32le(mbp, vcp->obj.co_flags & SMBV_UNICODE ? |
| 310 | SMB_CAP_UNICODE : 0); |
| 311 | smb_rq_wend(rqp); |
| 312 | smb_rq_bstart(rqp); |
| 313 | mb_put_mem(mbp, pp, plen, MB_MSYSTEM); |
| 314 | mb_put_mem(mbp, (caddr_t)unipp, uniplen, MB_MSYSTEM); |
| 315 | smb_put_dstring(mbp, vcp, up, SMB_CS_NONE); /* AccountName */ |
| 316 | smb_put_dstring(mbp, vcp, vcp->vc_domain, SMB_CS_NONE); /* PrimaryDomain */ |
| 317 | smb_put_dstring(mbp, vcp, "FreeBSD", SMB_CS_NONE); /* Client's OS */ |
| 318 | smb_put_dstring(mbp, vcp, "NETSMB", SMB_CS_NONE); /* Client name */ |
| 319 | } |
| 320 | smb_rq_bend(rqp); |
| 321 | if (ntencpass) |
| 322 | free(ntencpass, M_SMBTEMP); |
| 323 | error = smb_rq_simple(rqp); |
| 324 | SMBSDEBUG("%d\n", error); |
| 325 | if (error) { |
| 326 | if (rqp->sr_errclass == ERRDOS && rqp->sr_serror == ERRnoaccess) |
| 327 | error = EAUTH; |
| 328 | goto bad; |
| 329 | } |
| 330 | vcp->vc_smbuid = rqp->sr_rpuid; |
| 331 | bad: |
| 332 | free(encpass, M_SMBTEMP); |
| 333 | free(pbuf, M_SMBTEMP); |
| 334 | smb_rq_done(rqp); |
| 335 | return error; |
| 336 | } |
| 337 | |
| 338 | int |
| 339 | smb_smb_ssnclose(struct smb_vc *vcp, struct smb_cred *scred) |
| 340 | { |
| 341 | struct smb_rq *rqp; |
| 342 | struct mbchain *mbp; |
| 343 | int error; |
| 344 | |
| 345 | if (vcp->vc_smbuid == SMB_UID_UNKNOWN) |
| 346 | return 0; |
| 347 | |
| 348 | if (smb_smb_nomux(vcp, scred, __FUNCTION__) != 0) |
| 349 | return EINVAL; |
| 350 | |
| 351 | error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_LOGOFF_ANDX, scred, &rqp); |
| 352 | if (error) |
| 353 | return error; |
| 354 | mbp = &rqp->sr_rq; |
| 355 | smb_rq_wstart(rqp); |
| 356 | mb_put_uint8(mbp, 0xff); |
| 357 | mb_put_uint8(mbp, 0); |
| 358 | mb_put_uint16le(mbp, 0); |
| 359 | smb_rq_wend(rqp); |
| 360 | smb_rq_bstart(rqp); |
| 361 | smb_rq_bend(rqp); |
| 362 | error = smb_rq_simple(rqp); |
| 363 | SMBSDEBUG("%d\n", error); |
| 364 | smb_rq_done(rqp); |
| 365 | return error; |
| 366 | } |
| 367 | |
| 368 | static char smb_any_share[] = "?????"; |
| 369 | |
| 370 | static char * |
| 371 | smb_share_typename(int stype) |
| 372 | { |
| 373 | char *pp; |
| 374 | |
| 375 | switch (stype) { |
| 376 | case SMB_ST_DISK: |
| 377 | pp = "A:"; |
| 378 | break; |
| 379 | case SMB_ST_PRINTER: |
| 380 | pp = smb_any_share; /* can't use LPT: here... */ |
| 381 | break; |
| 382 | case SMB_ST_PIPE: |
| 383 | pp = "IPC"; |
| 384 | break; |
| 385 | case SMB_ST_COMM: |
| 386 | pp = "COMM"; |
| 387 | break; |
| 388 | case SMB_ST_ANY: |
| 389 | default: |
| 390 | pp = smb_any_share; |
| 391 | break; |
| 392 | } |
| 393 | return pp; |
| 394 | } |
| 395 | |
| 396 | int |
| 397 | smb_smb_treeconnect(struct smb_share *ssp, struct smb_cred *scred) |
| 398 | { |
| 399 | struct smb_vc *vcp; |
| 400 | struct smb_rq rq, *rqp = &rq; |
| 401 | struct mbchain *mbp; |
| 402 | char *pp, *pbuf, *encpass; |
| 403 | int error, plen, caseopt; |
| 404 | |
| 405 | ssp->ss_tid = SMB_TID_UNKNOWN; |
| 406 | error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_TREE_CONNECT_ANDX, scred, &rqp); |
| 407 | if (error) |
| 408 | return error; |
| 409 | vcp = rqp->sr_vc; |
| 410 | caseopt = SMB_CS_NONE; |
| 411 | if (vcp->vc_sopt.sv_sm & SMB_SM_USER) { |
| 412 | plen = 1; |
| 413 | pp = ""; |
| 414 | pbuf = NULL; |
| 415 | encpass = NULL; |
| 416 | } else { |
| 417 | pbuf = malloc(SMB_MAXPASSWORDLEN + 1, M_SMBTEMP, M_WAITOK); |
| 418 | encpass = malloc(24, M_SMBTEMP, M_WAITOK); |
| 419 | iconv_convstr(vcp->vc_toupper, pbuf, smb_share_getpass(ssp)); |
| 420 | iconv_convstr(vcp->vc_toserver, pbuf, pbuf); |
| 421 | if (vcp->vc_sopt.sv_sm & SMB_SM_ENCRYPT) { |
| 422 | plen = 24; |
| 423 | smb_encrypt(pbuf, vcp->vc_ch, encpass); |
| 424 | pp = encpass; |
| 425 | } else { |
| 426 | plen = strlen(pbuf) + 1; |
| 427 | pp = pbuf; |
| 428 | } |
| 429 | } |
| 430 | mbp = &rqp->sr_rq; |
| 431 | smb_rq_wstart(rqp); |
| 432 | mb_put_uint8(mbp, 0xff); |
| 433 | mb_put_uint8(mbp, 0); |
| 434 | mb_put_uint16le(mbp, 0); |
| 435 | mb_put_uint16le(mbp, 0); /* Flags */ |
| 436 | mb_put_uint16le(mbp, plen); |
| 437 | smb_rq_wend(rqp); |
| 438 | smb_rq_bstart(rqp); |
| 439 | mb_put_mem(mbp, pp, plen, MB_MSYSTEM); |
| 440 | smb_put_dmem(mbp, vcp, "\\\\", 2, caseopt); |
| 441 | pp = vcp->vc_srvname; |
| 442 | smb_put_dmem(mbp, vcp, pp, strlen(pp), caseopt); |
| 443 | smb_put_dmem(mbp, vcp, "\\", 1, caseopt); |
| 444 | pp = ssp->ss_name; |
| 445 | smb_put_dstring(mbp, vcp, pp, caseopt); |
| 446 | pp = smb_share_typename(ssp->ss_type); |
| 447 | smb_put_dstring(mbp, vcp, pp, caseopt); |
| 448 | smb_rq_bend(rqp); |
| 449 | error = smb_rq_simple(rqp); |
| 450 | SMBSDEBUG("%d\n", error); |
| 451 | if (error) |
| 452 | goto bad; |
| 453 | ssp->ss_tid = rqp->sr_rptid; |
| 454 | ssp->ss_vcgenid = vcp->vc_genid; |
| 455 | ssp->ss_flags |= SMBS_CONNECTED; |
| 456 | bad: |
| 457 | if (encpass) |
| 458 | free(encpass, M_SMBTEMP); |
| 459 | if (pbuf) |
| 460 | free(pbuf, M_SMBTEMP); |
| 461 | smb_rq_done(rqp); |
| 462 | return error; |
| 463 | } |
| 464 | |
| 465 | int |
| 466 | smb_smb_treedisconnect(struct smb_share *ssp, struct smb_cred *scred) |
| 467 | { |
| 468 | struct smb_rq *rqp; |
| 469 | struct mbchain *mbp; |
| 470 | int error; |
| 471 | |
| 472 | if (ssp->ss_tid == SMB_TID_UNKNOWN) |
| 473 | return 0; |
| 474 | error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_TREE_DISCONNECT, scred, &rqp); |
| 475 | if (error) |
| 476 | return error; |
| 477 | mbp = &rqp->sr_rq; |
| 478 | smb_rq_wstart(rqp); |
| 479 | smb_rq_wend(rqp); |
| 480 | smb_rq_bstart(rqp); |
| 481 | smb_rq_bend(rqp); |
| 482 | error = smb_rq_simple(rqp); |
| 483 | SMBSDEBUG("%d\n", error); |
| 484 | smb_rq_done(rqp); |
| 485 | ssp->ss_tid = SMB_TID_UNKNOWN; |
| 486 | return error; |
| 487 | } |
| 488 | |
| 489 | static __inline int |
| 490 | smb_smb_read(struct smb_share *ssp, u_int16_t fid, |
| 491 | int *len, int *rresid, struct uio *uio, struct smb_cred *scred) |
| 492 | { |
| 493 | struct smb_rq *rqp; |
| 494 | struct mbchain *mbp; |
| 495 | struct mdchain *mdp; |
| 496 | u_int16_t resid, bc; |
| 497 | u_int8_t wc; |
| 498 | int error, rlen, blksz; |
| 499 | |
| 500 | error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_READ, scred, &rqp); |
| 501 | if (error) |
| 502 | return error; |
| 503 | |
| 504 | blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 16; |
| 505 | rlen = *len = min(blksz, *len); |
| 506 | |
| 507 | smb_rq_getrequest(rqp, &mbp); |
| 508 | smb_rq_wstart(rqp); |
| 509 | mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM); |
| 510 | mb_put_uint16le(mbp, rlen); |
| 511 | mb_put_uint32le(mbp, uio->uio_offset); |
| 512 | mb_put_uint16le(mbp, min(uio->uio_resid, 0xffff)); |
| 513 | smb_rq_wend(rqp); |
| 514 | smb_rq_bstart(rqp); |
| 515 | smb_rq_bend(rqp); |
| 516 | do { |
| 517 | error = smb_rq_simple(rqp); |
| 518 | if (error) |
| 519 | break; |
| 520 | smb_rq_getreply(rqp, &mdp); |
| 521 | md_get_uint8(mdp, &wc); |
| 522 | if (wc != 5) { |
| 523 | error = EBADRPC; |
| 524 | break; |
| 525 | } |
| 526 | md_get_uint16le(mdp, &resid); |
| 527 | md_get_mem(mdp, NULL, 4 * 2, MB_MSYSTEM); |
| 528 | md_get_uint16le(mdp, &bc); |
| 529 | md_get_uint8(mdp, NULL); /* ignore buffer type */ |
| 530 | md_get_uint16le(mdp, &resid); |
| 531 | if (resid == 0) { |
| 532 | *rresid = resid; |
| 533 | break; |
| 534 | } |
| 535 | error = md_get_uio(mdp, uio, resid); |
| 536 | if (error) |
| 537 | break; |
| 538 | *rresid = resid; |
| 539 | } while(0); |
| 540 | smb_rq_done(rqp); |
| 541 | return error; |
| 542 | } |
| 543 | |
| 544 | int |
| 545 | smb_read(struct smb_share *ssp, u_int16_t fid, struct uio *uio, |
| 546 | struct smb_cred *scred) |
| 547 | { |
| 548 | int tsize, len, resid; |
| 549 | int error = 0; |
| 550 | |
| 551 | tsize = uio->uio_resid; |
| 552 | while (tsize > 0) { |
| 553 | len = tsize; |
| 554 | error = smb_smb_read(ssp, fid, &len, &resid, uio, scred); |
| 555 | if (error) |
| 556 | break; |
| 557 | tsize -= resid; |
| 558 | if (resid < len) |
| 559 | break; |
| 560 | } |
| 561 | return error; |
| 562 | } |
| 563 | |
| 564 | static __inline int |
| 565 | smb_smb_write(struct smb_share *ssp, u_int16_t fid, int *len, int *rresid, |
| 566 | struct uio *uio, struct smb_cred *scred) |
| 567 | { |
| 568 | struct smb_rq *rqp; |
| 569 | struct mbchain *mbp; |
| 570 | struct mdchain *mdp; |
| 571 | u_int16_t resid; |
| 572 | u_int8_t wc; |
| 573 | int error, blksz; |
| 574 | |
| 575 | blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 16; |
| 576 | if (blksz > 0xffff) |
| 577 | blksz = 0xffff; |
| 578 | |
| 579 | resid = *len = min(blksz, *len); |
| 580 | |
| 581 | error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_WRITE, scred, &rqp); |
| 582 | if (error) |
| 583 | return error; |
| 584 | smb_rq_getrequest(rqp, &mbp); |
| 585 | smb_rq_wstart(rqp); |
| 586 | mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM); |
| 587 | mb_put_uint16le(mbp, resid); |
| 588 | mb_put_uint32le(mbp, uio->uio_offset); |
| 589 | mb_put_uint16le(mbp, min(uio->uio_resid, 0xffff)); |
| 590 | smb_rq_wend(rqp); |
| 591 | smb_rq_bstart(rqp); |
| 592 | mb_put_uint8(mbp, SMB_DT_DATA); |
| 593 | mb_put_uint16le(mbp, resid); |
| 594 | do { |
| 595 | error = mb_put_uio(mbp, uio, resid); |
| 596 | if (error) |
| 597 | break; |
| 598 | smb_rq_bend(rqp); |
| 599 | error = smb_rq_simple(rqp); |
| 600 | if (error) |
| 601 | break; |
| 602 | smb_rq_getreply(rqp, &mdp); |
| 603 | md_get_uint8(mdp, &wc); |
| 604 | if (wc != 1) { |
| 605 | error = EBADRPC; |
| 606 | break; |
| 607 | } |
| 608 | md_get_uint16le(mdp, &resid); |
| 609 | *rresid = resid; |
| 610 | } while(0); |
| 611 | smb_rq_done(rqp); |
| 612 | return error; |
| 613 | } |
| 614 | |
| 615 | int |
| 616 | smb_write(struct smb_share *ssp, u_int16_t fid, struct uio *uio, |
| 617 | struct smb_cred *scred) |
| 618 | { |
| 619 | int error = 0, len, tsize, resid; |
| 620 | struct uio olduio; |
| 621 | |
| 622 | tsize = uio->uio_resid; |
| 623 | olduio = *uio; |
| 624 | while (tsize > 0) { |
| 625 | len = tsize; |
| 626 | error = smb_smb_write(ssp, fid, &len, &resid, uio, scred); |
| 627 | if (error) |
| 628 | break; |
| 629 | if (resid < len) { |
| 630 | error = EIO; |
| 631 | break; |
| 632 | } |
| 633 | tsize -= resid; |
| 634 | } |
| 635 | if (error) { |
| 636 | /* |
| 637 | * Errors can happen on the copyin, the rpc, etc. So they |
| 638 | * imply resid is unreliable. The only safe thing is |
| 639 | * to pretend zero bytes made it. We needn't restore the |
| 640 | * iovs because callers don't depend on them in error |
| 641 | * paths - uio_resid and uio_offset are what matter. |
| 642 | */ |
| 643 | *uio = olduio; |
| 644 | } |
| 645 | return error; |
| 646 | } |
| 647 | |
| 648 | int |
| 649 | smb_smb_echo(struct smb_vc *vcp, struct smb_cred *scred) |
| 650 | { |
| 651 | struct smb_rq *rqp; |
| 652 | struct mbchain *mbp; |
| 653 | int error; |
| 654 | |
| 655 | error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_ECHO, scred, &rqp); |
| 656 | if (error) |
| 657 | return error; |
| 658 | mbp = &rqp->sr_rq; |
| 659 | smb_rq_wstart(rqp); |
| 660 | mb_put_uint16le(mbp, 1); |
| 661 | smb_rq_wend(rqp); |
| 662 | smb_rq_bstart(rqp); |
| 663 | mb_put_uint32le(mbp, 0); |
| 664 | smb_rq_bend(rqp); |
| 665 | error = smb_rq_simple(rqp); |
| 666 | SMBSDEBUG("%d\n", error); |
| 667 | smb_rq_done(rqp); |
| 668 | return error; |
| 669 | } |