| 1 | /* $NetBSD: smb_usr.c,v 1.16 2009/03/18 16:00:24 cegger 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_usr.c,v 1.1 2001/04/10 07:59:06 bp Exp |
| 35 | */ |
| 36 | |
| 37 | #include <sys/cdefs.h> |
| 38 | __KERNEL_RCSID(0, "$NetBSD: smb_usr.c,v 1.16 2009/03/18 16:00:24 cegger Exp $" ); |
| 39 | |
| 40 | #include <sys/param.h> |
| 41 | #include <sys/malloc.h> |
| 42 | #include <sys/kernel.h> |
| 43 | #include <sys/systm.h> |
| 44 | #include <sys/conf.h> |
| 45 | #include <sys/proc.h> |
| 46 | #include <sys/fcntl.h> |
| 47 | #include <sys/socket.h> |
| 48 | #include <sys/socketvar.h> |
| 49 | #include <sys/sysctl.h> |
| 50 | |
| 51 | #include <netsmb/iconv.h> |
| 52 | |
| 53 | #include <netsmb/smb.h> |
| 54 | #include <netsmb/smb_conn.h> |
| 55 | #include <netsmb/smb_rq.h> |
| 56 | #include <netsmb/smb_subr.h> |
| 57 | #include <netsmb/smb_dev.h> |
| 58 | |
| 59 | /* |
| 60 | * helpers for nsmb device. Can be moved to the smb_dev.c file. |
| 61 | */ |
| 62 | static void smb_usr_vcspec_free(struct smb_vcspec *spec); |
| 63 | |
| 64 | static int |
| 65 | smb_usr_vc2spec(struct smbioc_ossn *dp, struct smb_vcspec *spec) |
| 66 | { |
| 67 | int flags = 0; |
| 68 | |
| 69 | memset(spec, 0, sizeof(*spec)); |
| 70 | if (dp->ioc_user[0] == 0) |
| 71 | return EINVAL; |
| 72 | if (dp->ioc_server == NULL) |
| 73 | return EINVAL; |
| 74 | if (dp->ioc_localcs[0] == 0) { |
| 75 | SMBERROR(("no local charset ?\n" )); |
| 76 | return EINVAL; |
| 77 | } |
| 78 | |
| 79 | spec->sap = smb_memdupin(dp->ioc_server, dp->ioc_svlen); |
| 80 | if (spec->sap == NULL) |
| 81 | return ENOMEM; |
| 82 | if (dp->ioc_local) { |
| 83 | spec->lap = smb_memdupin(dp->ioc_local, dp->ioc_lolen); |
| 84 | if (spec->lap == NULL) { |
| 85 | smb_usr_vcspec_free(spec); |
| 86 | return ENOMEM; |
| 87 | } |
| 88 | } |
| 89 | spec->srvname = dp->ioc_srvname; |
| 90 | spec->pass = dp->ioc_password; |
| 91 | spec->domain = dp->ioc_workgroup; |
| 92 | spec->username = dp->ioc_user; |
| 93 | spec->mode = dp->ioc_mode; |
| 94 | spec->rights = dp->ioc_rights; |
| 95 | spec->owner = dp->ioc_owner; |
| 96 | spec->group = dp->ioc_group; |
| 97 | spec->localcs = dp->ioc_localcs; |
| 98 | spec->servercs = dp->ioc_servercs; |
| 99 | if (dp->ioc_opt & SMBVOPT_PRIVATE) |
| 100 | flags |= SMBV_PRIVATE; |
| 101 | if (dp->ioc_opt & SMBVOPT_SINGLESHARE) |
| 102 | flags |= SMBV_PRIVATE | SMBV_SINGLESHARE; |
| 103 | spec->flags = flags; |
| 104 | return 0; |
| 105 | } |
| 106 | |
| 107 | static void |
| 108 | smb_usr_vcspec_free(struct smb_vcspec *spec) |
| 109 | { |
| 110 | if (spec->sap) |
| 111 | smb_memfree(spec->sap); |
| 112 | if (spec->lap) |
| 113 | smb_memfree(spec->lap); |
| 114 | } |
| 115 | |
| 116 | static int |
| 117 | smb_usr_share2spec(struct smbioc_oshare *dp, struct smb_sharespec *spec) |
| 118 | { |
| 119 | memset(spec, 0, sizeof(*spec)); |
| 120 | spec->mode = dp->ioc_mode; |
| 121 | spec->rights = dp->ioc_rights; |
| 122 | spec->owner = dp->ioc_owner; |
| 123 | spec->group = dp->ioc_group; |
| 124 | spec->name = dp->ioc_share; |
| 125 | spec->stype = dp->ioc_stype; |
| 126 | spec->pass = dp->ioc_password; |
| 127 | return 0; |
| 128 | } |
| 129 | |
| 130 | int |
| 131 | smb_usr_lookup(struct smbioc_lookup *dp, struct smb_cred *scred, |
| 132 | struct smb_vc **vcpp, struct smb_share **sspp) |
| 133 | { |
| 134 | struct smb_vc *vcp = NULL; |
| 135 | struct smb_vcspec vspec; |
| 136 | struct smb_sharespec sspec, *sspecp = NULL; |
| 137 | int error; |
| 138 | |
| 139 | if (dp->ioc_level < SMBL_VC || dp->ioc_level > SMBL_SHARE) |
| 140 | return EINVAL; |
| 141 | error = smb_usr_vc2spec(&dp->ioc_ssn, &vspec); |
| 142 | if (error) |
| 143 | return error; |
| 144 | if (dp->ioc_flags & SMBLK_CREATE) |
| 145 | vspec.flags |= SMBV_CREATE; |
| 146 | |
| 147 | if (dp->ioc_level >= SMBL_SHARE) { |
| 148 | error = smb_usr_share2spec(&dp->ioc_sh, &sspec); |
| 149 | if (error) |
| 150 | goto out; |
| 151 | sspecp = &sspec; |
| 152 | } |
| 153 | error = smb_sm_lookup(&vspec, sspecp, scred, &vcp); |
| 154 | if (error == 0) { |
| 155 | *vcpp = vcp; |
| 156 | *sspp = vspec.ssp; |
| 157 | } |
| 158 | out: |
| 159 | smb_usr_vcspec_free(&vspec); |
| 160 | return error; |
| 161 | } |
| 162 | |
| 163 | /* |
| 164 | * Connect to the resource specified by smbioc_ossn structure. |
| 165 | * It may either find an existing connection or try to establish a new one. |
| 166 | * If no errors occurred smb_vc returned locked and referenced. |
| 167 | */ |
| 168 | int |
| 169 | smb_usr_opensession(struct smbioc_ossn *dp, struct smb_cred *scred, |
| 170 | struct smb_vc **vcpp) |
| 171 | { |
| 172 | struct smb_vc *vcp = NULL; |
| 173 | struct smb_vcspec vspec; |
| 174 | int error; |
| 175 | |
| 176 | error = smb_usr_vc2spec(dp, &vspec); |
| 177 | if (error) |
| 178 | return error; |
| 179 | if (dp->ioc_opt & SMBVOPT_CREATE) |
| 180 | vspec.flags |= SMBV_CREATE; |
| 181 | |
| 182 | error = smb_sm_lookup(&vspec, NULL, scred, &vcp); |
| 183 | smb_usr_vcspec_free(&vspec); |
| 184 | return error; |
| 185 | } |
| 186 | |
| 187 | int |
| 188 | smb_usr_openshare(struct smb_vc *vcp, struct smbioc_oshare *dp, |
| 189 | struct smb_cred *scred, struct smb_share **sspp) |
| 190 | { |
| 191 | struct smb_share *ssp; |
| 192 | struct smb_sharespec shspec; |
| 193 | int error; |
| 194 | |
| 195 | error = smb_usr_share2spec(dp, &shspec); |
| 196 | if (error) |
| 197 | return error; |
| 198 | error = smb_vc_lookupshare(vcp, &shspec, scred, &ssp); |
| 199 | if (error == 0) { |
| 200 | *sspp = ssp; |
| 201 | return 0; |
| 202 | } |
| 203 | if ((dp->ioc_opt & SMBSOPT_CREATE) == 0) |
| 204 | return error; |
| 205 | error = smb_share_create(vcp, &shspec, scred, &ssp); |
| 206 | if (error) |
| 207 | return error; |
| 208 | error = smb_smb_treeconnect(ssp, scred); |
| 209 | if (error) { |
| 210 | smb_share_put(ssp, scred); |
| 211 | } else |
| 212 | *sspp = ssp; |
| 213 | return error; |
| 214 | } |
| 215 | |
| 216 | int |
| 217 | smb_usr_simplerequest(struct smb_share *ssp, struct smbioc_rq *dp, |
| 218 | struct smb_cred *scred) |
| 219 | { |
| 220 | struct smb_rq *rqp; |
| 221 | struct mbchain *mbp; |
| 222 | struct mdchain *mdp; |
| 223 | u_int8_t wc; |
| 224 | u_int16_t bc; |
| 225 | int error; |
| 226 | |
| 227 | switch (dp->ioc_cmd) { |
| 228 | case SMB_COM_TRANSACTION2: |
| 229 | case SMB_COM_TRANSACTION2_SECONDARY: |
| 230 | case SMB_COM_CLOSE_AND_TREE_DISC: |
| 231 | case SMB_COM_TREE_CONNECT: |
| 232 | case SMB_COM_TREE_DISCONNECT: |
| 233 | case SMB_COM_NEGOTIATE: |
| 234 | case SMB_COM_SESSION_SETUP_ANDX: |
| 235 | case SMB_COM_LOGOFF_ANDX: |
| 236 | case SMB_COM_TREE_CONNECT_ANDX: |
| 237 | return EPERM; |
| 238 | } |
| 239 | error = smb_rq_alloc(SSTOCP(ssp), dp->ioc_cmd, scred, &rqp); |
| 240 | if (error) |
| 241 | return error; |
| 242 | mbp = &rqp->sr_rq; |
| 243 | smb_rq_wstart(rqp); |
| 244 | error = mb_put_mem(mbp, dp->ioc_twords, dp->ioc_twc * 2, MB_MUSER); |
| 245 | if (error) |
| 246 | goto bad; |
| 247 | smb_rq_wend(rqp); |
| 248 | smb_rq_bstart(rqp); |
| 249 | error = mb_put_mem(mbp, dp->ioc_tbytes, dp->ioc_tbc, MB_MUSER); |
| 250 | if (error) |
| 251 | goto bad; |
| 252 | smb_rq_bend(rqp); |
| 253 | error = smb_rq_simple(rqp); |
| 254 | if (error) |
| 255 | goto bad; |
| 256 | mdp = &rqp->sr_rp; |
| 257 | md_get_uint8(mdp, &wc); |
| 258 | dp->ioc_rwc = wc; |
| 259 | wc *= 2; |
| 260 | if (wc > dp->ioc_rpbufsz) { |
| 261 | error = EBADRPC; |
| 262 | goto bad; |
| 263 | } |
| 264 | error = md_get_mem(mdp, dp->ioc_rpbuf, wc, MB_MUSER); |
| 265 | if (error) |
| 266 | goto bad; |
| 267 | md_get_uint16le(mdp, &bc); |
| 268 | if ((wc + bc) > dp->ioc_rpbufsz) { |
| 269 | error = EBADRPC; |
| 270 | goto bad; |
| 271 | } |
| 272 | dp->ioc_rbc = bc; |
| 273 | error = md_get_mem(mdp, dp->ioc_rpbuf + wc, bc, MB_MUSER); |
| 274 | bad: |
| 275 | smb_rq_done(rqp); |
| 276 | return error; |
| 277 | |
| 278 | } |
| 279 | |
| 280 | static int |
| 281 | smb_cpdatain(struct mbchain *mbp, int len, void *data) |
| 282 | { |
| 283 | int error; |
| 284 | |
| 285 | if (len == 0) |
| 286 | return 0; |
| 287 | error = mb_init(mbp); |
| 288 | if (error) |
| 289 | return error; |
| 290 | return mb_put_mem(mbp, data, len, MB_MUSER); |
| 291 | } |
| 292 | |
| 293 | int |
| 294 | smb_usr_t2request(struct smb_share *ssp, struct smbioc_t2rq *dp, |
| 295 | struct smb_cred *scred) |
| 296 | { |
| 297 | struct smb_t2rq *t2p; |
| 298 | struct mdchain *mdp; |
| 299 | int error, len; |
| 300 | |
| 301 | if (dp->ioc_setupcnt > 3) |
| 302 | return EINVAL; |
| 303 | error = smb_t2_alloc(SSTOCP(ssp), dp->ioc_setup[0], scred, &t2p); |
| 304 | if (error) |
| 305 | return error; |
| 306 | len = t2p->t2_setupcount = dp->ioc_setupcnt; |
| 307 | if (len > 1) |
| 308 | t2p->t2_setupdata = dp->ioc_setup; |
| 309 | if (dp->ioc_name) { |
| 310 | t2p->t_name = smb_strdupin(dp->ioc_name, 128); |
| 311 | if (t2p->t_name == NULL) { |
| 312 | error = ENOMEM; |
| 313 | goto bad; |
| 314 | } |
| 315 | } |
| 316 | t2p->t2_maxscount = 0; |
| 317 | t2p->t2_maxpcount = dp->ioc_rparamcnt; |
| 318 | t2p->t2_maxdcount = dp->ioc_rdatacnt; |
| 319 | error = smb_cpdatain(&t2p->t2_tparam, dp->ioc_tparamcnt, dp->ioc_tparam); |
| 320 | if (error) |
| 321 | goto bad; |
| 322 | error = smb_cpdatain(&t2p->t2_tdata, dp->ioc_tdatacnt, dp->ioc_tdata); |
| 323 | if (error) |
| 324 | goto bad; |
| 325 | error = smb_t2_request(t2p); |
| 326 | if (error) |
| 327 | goto bad; |
| 328 | mdp = &t2p->t2_rparam; |
| 329 | if (mdp->md_top) { |
| 330 | len = m_fixhdr(mdp->md_top); |
| 331 | if (len > dp->ioc_rparamcnt) { |
| 332 | error = EMSGSIZE; |
| 333 | goto bad; |
| 334 | } |
| 335 | dp->ioc_rparamcnt = len; |
| 336 | error = md_get_mem(mdp, dp->ioc_rparam, len, MB_MUSER); |
| 337 | if (error) |
| 338 | goto bad; |
| 339 | } else |
| 340 | dp->ioc_rparamcnt = 0; |
| 341 | mdp = &t2p->t2_rdata; |
| 342 | if (mdp->md_top) { |
| 343 | len = m_fixhdr(mdp->md_top); |
| 344 | if (len > dp->ioc_rdatacnt) { |
| 345 | error = EMSGSIZE; |
| 346 | goto bad; |
| 347 | } |
| 348 | dp->ioc_rdatacnt = len; |
| 349 | error = md_get_mem(mdp, dp->ioc_rdata, len, MB_MUSER); |
| 350 | } else |
| 351 | dp->ioc_rdatacnt = 0; |
| 352 | bad: |
| 353 | if (t2p->t_name) |
| 354 | smb_strfree(t2p->t_name); |
| 355 | smb_t2_done(t2p); |
| 356 | return error; |
| 357 | } |
| 358 | |