examples/fuse/clifuse.c

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  * fusermount smb2 client
   4  * Copyright (C) Volker Lendecke 2016
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #define FUSE_USE_VERSION 26
  21 #define _FILE_OFFSET_BITS 64
  22 #include "fuse/fuse_lowlevel.h"
  23
  24 #include "source3/include/includes.h"
  25 #include "client.h"
  26 #include "trans2.h"
  27 #include "libsmb/proto.h"
  28 #include "libsmb/clirap.h"
  29 #include "libsmb/cli_smb2_fnum.h"
  30 #include "lib/util/tevent_ntstatus.h"
  31 #include "libcli/smb/smbXcli_base.h"
  32 #include "libcli/security/security.h"
  33 #include "clifuse.h"
  34
  35 struct mount_state {
  36         struct tevent_context *ev;
  37         struct cli_state *cli;
  38         bool done;
  39
  40         struct tevent_fd *fde;
  41         struct tevent_signal *signal_ev;
  42
  43         struct fuse_chan *ch;
  44         struct fuse_session *se;
  45
  46         size_t bufsize;
  47         char *buf;
  48
  49         struct idr_context *ino_ctx;
  50         TALLOC_CTX *ino_parent;
  51 };
  52
  53 struct inode_state {
  54         struct idr_context *ino_ctx;
  55         fuse_ino_t ino;
  56         char path[1];
  57 };
  58
  59 static int inode_state_destructor(struct inode_state *s);
  60
  61 static struct inode_state *inode_state_init(TALLOC_CTX *mem_ctx,
  62                                             struct idr_context *ino_ctx,
  63                                             const char *path)
  64 {
  65         struct inode_state *state;
  66         size_t pathlen;
  67         int ino;
  68
  69         pathlen = strlen(path);
  70         state = talloc_size(
  71                 mem_ctx, offsetof(struct inode_state, path) + pathlen + 1);
  72         if (state == NULL) {
  73                 return NULL;
  74         }
  75         talloc_set_name_const(state, "struct inode_state");
  76
  77         ino = idr_get_new_above(ino_ctx, state, 1, INT32_MAX);
  78         if (ino == -1) {
  79                 TALLOC_FREE(state);
  80                 return NULL;
  81         }
  82
  83         state->ino = ino;
  84         state->ino_ctx = ino_ctx;
  85         memcpy(state->path, path, pathlen + 1);
  86
  87         DBG_DEBUG("Creating ino %d for path %s\n", ino, path);
  88
  89         talloc_set_destructor(state, inode_state_destructor);
  90
  91         return state;
  92 }
  93
  94 static struct inode_state *inode_state_new(struct mount_state *mstate,
  95                                            const char *path)
  96 {
  97         return inode_state_init(mstate->ino_parent, mstate->ino_ctx, path);
  98 }
  99
 100 static int inode_state_destructor(struct inode_state *s)
 101 {
 102         DBG_DEBUG("destroying inode %ju\n", (uintmax_t)s->ino);
 103         idr_remove(s->ino_ctx, s->ino);
 104         return 0;
 105 }
 106
 107 struct ll_create_state {
 108         struct mount_state *mstate;
 109         fuse_req_t freq;
 110         struct fuse_file_info fi;
 111         char *path;
 112 };
 113
 114 static void cli_ll_create_done(struct tevent_req *req);
 115
 116 static void cli_ll_create(fuse_req_t freq, fuse_ino_t parent, const char *name,
 117                           mode_t mode, struct fuse_file_info *fi)
 118 {
 119         struct mount_state *mstate = talloc_get_type_abort(
 120                 fuse_req_userdata(freq), struct mount_state);
 121         struct ll_create_state *state;
 122         struct inode_state *istate;
 123         struct tevent_req *req;
 124
 125         DBG_DEBUG("parent=%ju, name=%s, mode=%x\n", (uintmax_t)parent,
 126                   name, (unsigned)mode);
 127
 128         istate = idr_find(mstate->ino_ctx, parent);
 129         if (istate == NULL) {
 130                 fuse_reply_err(freq, ENOENT);
 131                 return;
 132         }
 133
 134         state = talloc(mstate, struct ll_create_state);
 135         if (state == NULL) {
 136                 fuse_reply_err(freq, ENOMEM);
 137                 return;
 138         }
 139         state->mstate = mstate;
 140         state->freq = freq;
 141         state->fi = *fi;
 142
 143         state->path = talloc_asprintf(state, "%s%s%s", istate->path,
 144                                       strlen(istate->path) ? "\\": "",
 145                                       name);
 146         if (state->path == NULL) {
 147                 TALLOC_FREE(state);
 148                 fuse_reply_err(freq, ENOMEM);
 149                 return;
 150         }
 151
 152         req = cli_smb2_create_fnum_send(
 153                 state,
 154                 mstate->ev,
 155                 mstate->cli, state->path,
 156                 0,
 157                 SMB2_IMPERSONATION_IMPERSONATION,
 158                 FILE_GENERIC_READ|FILE_GENERIC_WRITE,
 159                 FILE_ATTRIBUTE_NORMAL,
 160                 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
 161                 FILE_CREATE,
 162                 FILE_NON_DIRECTORY_FILE,
 163                 NULL);
 164         if (req == NULL) {
 165                 TALLOC_FREE(state);
 166                 fuse_reply_err(freq, ENOMEM);
 167                 return;
 168         }
 169         tevent_req_set_callback(req, cli_ll_create_done, state);
 170 }
 171
 172 static void cli_ll_create_done(struct tevent_req *req)
 173 {
 174         struct ll_create_state *state = tevent_req_callback_data(
 175                 req, struct ll_create_state);
 176         struct fuse_entry_param e;
 177         struct inode_state *ino;
 178         uint16_t fnum;
 179         NTSTATUS status;
 180
 181         status = cli_smb2_create_fnum_recv(req, &fnum, NULL, NULL, NULL);
 182         TALLOC_FREE(req);
 183         if (!NT_STATUS_IS_OK(status)) {
 184                 fuse_reply_err(state->freq, map_errno_from_nt_status(status));
 185                 return;
 186         }
 187
 188         state->fi.fh = fnum;
 189         state->fi.direct_io = 0;
 190         state->fi.keep_cache = 0;
 191
 192         ino = inode_state_new(state->mstate, state->path);
 193         if (ino == NULL) {
 194                 fuse_reply_err(state->freq, ENOMEM);
 195                 return;
 196         }
 197
 198         e = (struct fuse_entry_param) {
 199                 .ino = ino->ino,
 200                 .generation = 1, /* FIXME */
 201                 .attr_timeout = 1.0,
 202                 .entry_timeout = 1.0
 203         };
 204
 205         fuse_reply_create(state->freq, &e, &state->fi);
 206
 207         TALLOC_FREE(state);
 208 }
 209
 210 struct cli_get_unixattr_state {
 211         struct tevent_context *ev;
 212         struct cli_state *cli;
 213         uint64_t fid_persistent;
 214         uint64_t fid_volatile;
 215
 216         struct timespec create_time;
 217         struct timespec access_time;
 218         struct timespec write_time;
 219         struct timespec change_time;
 220         uint32_t mode;
 221         uint64_t ino;
 222         uint64_t size;
 223 };
 224
 225 static void cli_get_unixattr_opened(struct tevent_req *subreq);
 226 static void cli_get_unixattr_gotinfo(struct tevent_req *subreq);
 227 static void cli_get_unixattr_closed(struct tevent_req *subreq);
 228
 229
 230 static struct tevent_req *cli_get_unixattr_send(TALLOC_CTX *mem_ctx,
 231                                                 struct tevent_context *ev,
 232                                                 struct cli_state *cli,
 233                                                 const char *path)
 234 {
 235         struct tevent_req *req, *subreq;
 236         struct cli_get_unixattr_state *state;
 237
 238         req = tevent_req_create(mem_ctx, &state,
 239                                 struct cli_get_unixattr_state);
 240         if (req == NULL) {
 241                 return NULL;
 242         }
 243         state->ev = ev;
 244         state->cli = cli;
 245
 246         subreq = smb2cli_create_send(
 247                 state, ev, cli->conn, cli->timeout, cli->smb2.session,
 248                 cli->smb2.tcon, path, SMB2_OPLOCK_LEVEL_NONE,
 249                 SMB2_IMPERSONATION_IMPERSONATION,
 250                 SYNCHRONIZE_ACCESS|FILE_READ_ATTRIBUTES, 0,
 251                 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
 252                 FILE_OPEN, 0, NULL);
 253         if (tevent_req_nomem(subreq, req)) {
 254                 return tevent_req_post(req, ev);
 255         }
 256         tevent_req_set_callback(subreq, cli_get_unixattr_opened, req);
 257
 258         return req;
 259 }
 260
 261 static void cli_get_unixattr_opened(struct tevent_req *subreq)
 262 {
 263         struct tevent_req *req = tevent_req_callback_data(
 264                 subreq, struct tevent_req);
 265         struct cli_get_unixattr_state *state = tevent_req_data(
 266                 req, struct cli_get_unixattr_state);
 267         struct cli_state *cli = state->cli;
 268         NTSTATUS status;
 269
 270         status = smb2cli_create_recv(subreq, &state->fid_persistent,
 271                                      &state->fid_volatile, NULL, NULL, NULL);
 272         TALLOC_FREE(subreq);
 273         if (tevent_req_nterror(req, status)) {
 274                 DBG_DEBUG("smb2cli_create_recv returned %s\n",
 275                           nt_errstr(status));
 276                 return;
 277         }
 278
 279         subreq = smb2cli_query_info_send(
 280                 state, state->ev, cli->conn, 0,
 281                 cli->smb2.session, cli->smb2.tcon,
 282                 1, /* in_info_type */
 283                 (SMB_FILE_ALL_INFORMATION - 1000), /* in_file_info_class */
 284                 0xFFFF, /* in_max_output_length */
 285                 NULL, /* in_input_buffer */
 286                 0, /* in_additional_info */
 287                 0, /* in_flags */
 288                 state->fid_persistent,
 289                 state->fid_volatile);
 290         if (tevent_req_nomem(subreq, req)) {
 291                 return;
 292         }
 293         tevent_req_set_callback(subreq, cli_get_unixattr_gotinfo, req);
 294 }
 295
 296 static void cli_get_unixattr_gotinfo(struct tevent_req *subreq)
 297 {
 298         struct tevent_req *req = tevent_req_callback_data(
 299                 subreq, struct tevent_req);
 300         struct cli_get_unixattr_state *state = tevent_req_data(
 301                 req, struct cli_get_unixattr_state);
 302         struct cli_state *cli = state->cli;
 303         NTSTATUS status;
 304         DATA_BLOB outbuf;
 305
 306         status = smb2cli_query_info_recv(subreq, state, &outbuf);
 307         TALLOC_FREE(subreq);
 308         if (tevent_req_nterror(req, status)) {
 309                 DBG_DEBUG("smb2cli_query_info_recv returned %s\n",
 310                           nt_errstr(status));
 311                 return;
 312         }
 313
 314         if (outbuf.length < 0x60) {
 315                 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
 316                 return;
 317         }
 318
 319         state->create_time = interpret_long_date((char *)outbuf.data + 0x0);
 320         state->access_time = interpret_long_date((char *)outbuf.data + 0x8);
 321         state->write_time  = interpret_long_date((char *)outbuf.data + 0x10);
 322         state->change_time = interpret_long_date((char *)outbuf.data + 0x18);
 323         state->mode        = IVAL(outbuf.data, 0x20);
 324         state->size        = BVAL(outbuf.data, 0x30);
 325         state->ino         = BVAL(outbuf.data, 0x40);
 326
 327         subreq = smb2cli_close_send(state, state->ev, cli->conn, 0,
 328                                     cli->smb2.session, cli->smb2.tcon, 0,
 329                                     state->fid_persistent,
 330                                     state->fid_volatile);
 331         if (tevent_req_nomem(subreq, req)) {
 332                 return;
 333         }
 334         tevent_req_set_callback(subreq, cli_get_unixattr_closed, req);
 335 }
 336
 337 static void cli_get_unixattr_closed(struct tevent_req *subreq)
 338 {
 339         struct tevent_req *req = tevent_req_callback_data(
 340                 subreq, struct tevent_req);
 341         NTSTATUS status;
 342
 343         status = smb2cli_close_recv(subreq);
 344         TALLOC_FREE(subreq);
 345         if (tevent_req_nterror(req, status)) {
 346                 return;
 347         }
 348         tevent_req_done(req);
 349 }
 350
 351 static NTSTATUS cli_get_unixattr_recv(struct tevent_req *req,
 352                                       struct stat *st)
 353 {
 354         struct cli_get_unixattr_state *state = tevent_req_data(
 355                 req, struct cli_get_unixattr_state);
 356         NTSTATUS status;
 357
 358         if (tevent_req_is_nterror(req, &status)) {
 359                 return status;
 360         }
 361
 362         if (IS_DOS_DIR(state->mode)) {
 363                 st->st_mode = (S_IFDIR | 0555);
 364                 st->st_nlink = 2;
 365         } else {
 366                 st->st_mode = (S_IFREG | 0444);
 367                 st->st_nlink = 1;
 368         }
 369
 370         st->st_size = state->size;
 371         st->st_uid = getuid();
 372         st->st_gid = getgid();
 373         st->st_ino = state->ino;
 374         st->st_atime = convert_timespec_to_time_t(state->access_time);
 375         st->st_ctime = convert_timespec_to_time_t(state->change_time);
 376         st->st_mtime = convert_timespec_to_time_t(state->write_time);
 377
 378         return NT_STATUS_OK;
 379 }
 380
 381 struct cli_smb2_listdir_state {
 382         struct tevent_context *ev;
 383         struct smbXcli_conn *conn;
 384         uint32_t timeout_msec;
 385         struct smbXcli_session *session;
 386         struct smbXcli_tcon *tcon;
 387         uint8_t level;
 388         uint8_t flags;
 389         uint32_t file_index;
 390         uint64_t fid_persistent;
 391         uint64_t fid_volatile;
 392         const char *mask;
 393         uint32_t outbuf_len;
 394
 395         uint16_t attribute;
 396         const char *mntpoint;
 397         const char *pathname;
 398         NTSTATUS (*fn)(const char *mntpoint, struct file_info *f,
 399                        const char *mask, void *private_data);
 400         void *private_data;
 401         bool processed_file;
 402 };
 403
 404 static void cli_smb2_listdir_done(struct tevent_req *subreq);
 405
 406 static struct tevent_req *cli_smb2_listdir_send(
 407         TALLOC_CTX *mem_ctx,
 408         struct tevent_context *ev,
 409         struct smbXcli_conn *conn,
 410         uint32_t timeout_msec,
 411         struct smbXcli_session *session,
 412         struct smbXcli_tcon *tcon,
 413         uint8_t level,
 414         uint8_t flags,
 415         uint32_t file_index,
 416         uint64_t fid_persistent,
 417         uint64_t fid_volatile,
 418         const char *mask,
 419         uint32_t outbuf_len,
 420         uint16_t attribute,
 421         const char *mntpoint,
 422         const char *pathname,
 423         NTSTATUS (*fn)(const char *mntpoint, struct file_info *f,
 424                        const char *mask, void *private_data),
 425         void *private_data)
 426 {
 427         struct tevent_req *req, *subreq;
 428         struct cli_smb2_listdir_state *state;
 429
 430         req = tevent_req_create(mem_ctx, &state,
 431                                 struct cli_smb2_listdir_state);
 432         if (req == NULL) {
 433                 return NULL;
 434         }
 435         state->ev = ev;
 436         state->conn = conn;
 437         state->timeout_msec = timeout_msec;
 438         state->session = session;
 439         state->tcon = tcon;
 440         state->level = level;
 441         state->flags = flags;
 442         state->file_index = file_index;
 443         state->fid_persistent = fid_persistent;
 444         state->fid_volatile = fid_volatile;
 445         state->mask = mask;
 446         state->outbuf_len = outbuf_len;
 447         state->attribute = attribute;
 448         state->mntpoint = mntpoint;
 449         state->pathname = pathname;
 450         state->fn = fn;
 451         state->private_data = private_data;
 452
 453         subreq = smb2cli_query_directory_send(
 454                 state, state->ev, state->conn, state->timeout_msec,
 455                 state->session, state->tcon, state->level,
 456                 state->flags, state->file_index,
 457                 state->fid_persistent, state->fid_volatile,
 458                 state->mask, state->outbuf_len);
 459         if (tevent_req_nomem(subreq, req)) {
 460                 return tevent_req_post(req, ev);
 461         }
 462         tevent_req_set_callback(subreq, cli_smb2_listdir_done, req);
 463         return req;
 464 }
 465
 466 static NTSTATUS parse_finfo_id_both_directory_info(uint8_t *dir_data,
 467                                 uint32_t dir_data_length,
 468                                 struct file_info *finfo,
 469                                 uint32_t *next_offset)
 470 {
 471         size_t namelen = 0;
 472         size_t slen = 0;
 473         size_t ret = 0;
 474
 475         if (dir_data_length < 4) {
 476                 return NT_STATUS_INFO_LENGTH_MISMATCH;
 477         }
 478
 479         *next_offset = IVAL(dir_data, 0);
 480
 481         if (*next_offset > dir_data_length) {
 482                 return NT_STATUS_INFO_LENGTH_MISMATCH;
 483         }
 484
 485         if (*next_offset != 0) {
 486                 /* Ensure we only read what in this record. */
 487                 dir_data_length = *next_offset;
 488         }
 489
 490         if (dir_data_length < 105) {
 491                 return NT_STATUS_INFO_LENGTH_MISMATCH;
 492         }
 493
 494         finfo->btime_ts = interpret_long_date((const char *)dir_data + 8);
 495         finfo->atime_ts = interpret_long_date((const char *)dir_data + 16);
 496         finfo->mtime_ts = interpret_long_date((const char *)dir_data + 24);
 497         finfo->ctime_ts = interpret_long_date((const char *)dir_data + 32);
 498         finfo->size = IVAL2_TO_SMB_BIG_UINT(dir_data + 40, 0);
 499         finfo->mode = (uint16_t)IVAL(dir_data + 56, 0);
 500         namelen = IVAL(dir_data + 60,0);
 501         if (namelen > (dir_data_length - 104)) {
 502                 return NT_STATUS_INFO_LENGTH_MISMATCH;
 503         }
 504         slen = CVAL(dir_data + 68, 0);
 505         if (slen > 24) {
 506                 return NT_STATUS_INFO_LENGTH_MISMATCH;
 507         }
 508         ret = pull_string_talloc(finfo,
 509                                 dir_data,
 510                                 FLAGS2_UNICODE_STRINGS,
 511                                 &finfo->short_name,
 512                                 dir_data + 70,
 513                                 slen,
 514                                 STR_UNICODE);
 515         if (ret == (size_t)-1) {
 516                 /* Bad conversion. */
 517                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
 518         }
 519
 520         ret = pull_string_talloc(finfo,
 521                                 dir_data,
 522                                 FLAGS2_UNICODE_STRINGS,
 523                                 &finfo->name,
 524                                 dir_data + 104,
 525                                 namelen,
 526                                 STR_UNICODE);
 527         if (ret == (size_t)-1) {
 528                 /* Bad conversion. */
 529                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
 530         }
 531         return NT_STATUS_OK;
 532 }
 533
 534 static void cli_smb2_listdir_done(struct tevent_req *subreq)
 535 {
 536         struct tevent_req *req = tevent_req_callback_data(
 537                 subreq, struct tevent_req);
 538         struct cli_smb2_listdir_state *state = tevent_req_data(
 539                 req, struct cli_smb2_listdir_state);
 540         uint8_t *data;
 541         uint32_t data_len;
 542         uint32_t next_offset = 0;
 543         NTSTATUS status;
 544
 545         status = smb2cli_query_directory_recv(subreq, state, &data,
 546                                               &data_len);
 547         TALLOC_FREE(subreq);
 548         if (NT_STATUS_EQUAL(status, STATUS_NO_MORE_FILES)) {
 549                 tevent_req_done(req);
 550                 return;
 551         }
 552         if (tevent_req_nterror(req, status)) {
 553                 return;
 554         }
 555
 556         do {
 557                 struct file_info *finfo;
 558                 bool ok;
 559
 560                 finfo = talloc_zero(state, struct file_info);
 561                 if (tevent_req_nomem(finfo, req)) {
 562                         return;
 563                 }
 564
 565                 status = parse_finfo_id_both_directory_info(
 566                         data, data_len, finfo, &next_offset);
 567
 568                 DEBUG(10, ("%s: parse_finfo_id_both_directory_info returned "
 569                            "%s\n", __func__, nt_errstr(status)));
 570
 571                 if (tevent_req_nterror(req, status)) {
 572                         return;
 573                 }
 574
 575                 ok = dir_check_ftype(finfo->mode, state->attribute);
 576
 577                 DEBUG(10, ("%s: dir_check_ftype(%u,%u) returned %u\n",
 578                            __func__, (unsigned)finfo->mode,
 579                            (unsigned)state->attribute, (unsigned)ok));
 580
 581                 if (ok) {
 582                         /*
 583                          * Only process if attributes match. On SMB1 server
 584                          * does this, so on SMB2 we need to emulate in the
 585                          * client.
 586                          *
 587                          * https://bugzilla.samba.org/show_bug.cgi?id=10260
 588                          */
 589                         state->processed_file = true;
 590
 591                         status = state->fn(state->mntpoint, finfo,
 592                                            state->pathname,
 593                                            state->private_data);
 594                         if (tevent_req_nterror(req, status)) {
 595                                 return;
 596                         }
 597                 }
 598
 599                 TALLOC_FREE(finfo);
 600
 601                 if (next_offset != 0) {
 602                         data += next_offset;
 603                         data_len -= next_offset;
 604                 }
 605         } while (next_offset != 0);
 606
 607         subreq = smb2cli_query_directory_send(
 608                 state, state->ev, state->conn, state->timeout_msec,
 609                 state->session, state->tcon, state->level,
 610                 state->flags, state->file_index,
 611                 state->fid_persistent, state->fid_volatile,
 612                 state->mask, state->outbuf_len);
 613         if (tevent_req_nomem(subreq, req)) {
 614                 return;
 615         }
 616         tevent_req_set_callback(subreq, cli_smb2_listdir_done, req);
 617 }
 618
 619 static NTSTATUS cli_smb2_listdir_recv(struct tevent_req *req)
 620 {
 621         struct cli_smb2_listdir_state *state = tevent_req_data(
 622                 req, struct cli_smb2_listdir_state);
 623         NTSTATUS status;
 624
 625         if (tevent_req_is_nterror(req, &status)) {
 626                 return status;
 627         }
 628
 629         if (!state->processed_file) {
 630                 /*
 631                  * In SMB1 findfirst returns NT_STATUS_NO_SUCH_FILE
 632                  * if no files match. Emulate this in the client.
 633                  */
 634                 return NT_STATUS_NO_SUCH_FILE;
 635         }
 636
 637         return NT_STATUS_OK;
 638 }
 639
 640 struct ll_lookup_state {
 641         struct mount_state *mstate;
 642         fuse_req_t freq;
 643         char *path;
 644 };
 645
 646 static void cli_ll_lookup_done(struct tevent_req *req);
 647
 648 static void cli_ll_lookup(fuse_req_t freq, fuse_ino_t parent_ino,
 649                           const char *name)
 650 {
 651         struct mount_state *mstate = talloc_get_type_abort(
 652                 fuse_req_userdata(freq), struct mount_state);
 653         struct ll_lookup_state *state;
 654         struct tevent_req *req;
 655         struct inode_state *parent;
 656
 657         DBG_DEBUG("parent_ino=%ju, name=%s\n", (uintmax_t)parent_ino, name);
 658
 659         parent = idr_find(mstate->ino_ctx, parent_ino);
 660         if (parent == NULL) {
 661                 DBG_WARNING("could not find parent\n");
 662                 fuse_reply_err(freq, ENOENT);
 663                 return;
 664         }
 665
 666         state = talloc(mstate, struct ll_lookup_state);
 667         if (state == NULL) {
 668                 DBG_WARNING("talloc failed\n");
 669                 fuse_reply_err(freq, ENOMEM);
 670                 return;
 671         }
 672         state->mstate = mstate;
 673         state->freq = freq;
 674
 675         state->path = talloc_asprintf(state, "%s%s%s", parent->path,
 676                                       strlen(parent->path) ? "\\": "",
 677                                       name);
 678         if (state->path == NULL) {
 679                 TALLOC_FREE(state);
 680                 fuse_reply_err(freq, ENOMEM);
 681                 return;
 682         }
 683
 684         req = cli_get_unixattr_send(state, mstate->ev, mstate->cli,
 685                                     state->path);
 686         if (req == NULL) {
 687                 TALLOC_FREE(state);
 688                 fuse_reply_err(freq, ENOMEM);
 689                 return;
 690         }
 691         tevent_req_set_callback(req, cli_ll_lookup_done, state);
 692 }
 693
 694 static void cli_ll_lookup_done(struct tevent_req *req)
 695 {
 696         struct ll_lookup_state *state = tevent_req_callback_data(
 697                 req, struct ll_lookup_state);
 698         struct stat sbuf = {0};
 699         struct fuse_entry_param e;
 700         struct inode_state *ino;
 701         NTSTATUS status;
 702
 703         status = cli_get_unixattr_recv(req, &sbuf);
 704         TALLOC_FREE(req);
 705         if (!NT_STATUS_IS_OK(status)) {
 706                 fuse_reply_err(state->freq, map_errno_from_nt_status(status));
 707                 return;
 708         }
 709
 710         ino = inode_state_new(state->mstate, state->path);
 711         if (ino == NULL) {
 712                 fuse_reply_err(state->freq, ENOMEM);
 713                 return;
 714         }
 715
 716         e = (struct fuse_entry_param) {
 717                 .ino = ino->ino,
 718                 .attr = sbuf,
 719                 .generation = 1, /* FIXME */
 720                 .attr_timeout = 1.0,
 721                 .entry_timeout = 1.0
 722         };
 723
 724         fuse_reply_entry(state->freq, &e);
 725         TALLOC_FREE(state);
 726 }
 727
 728 struct ll_getattr_state {
 729         struct mount_state *mstate;
 730         fuse_req_t freq;
 731         struct fuse_file_info fi;
 732 };
 733
 734 static void cli_ll_getattr_done(struct tevent_req *req);
 735
 736 static void cli_ll_getattr(fuse_req_t freq, fuse_ino_t ino,
 737                            struct fuse_file_info *fi)
 738 {
 739         struct mount_state *mstate = talloc_get_type_abort(
 740                 fuse_req_userdata(freq), struct mount_state);
 741         struct ll_getattr_state *state;
 742         struct inode_state *istate;
 743         struct tevent_req *req;
 744
 745         DBG_DEBUG("ino=%ju\n", (uintmax_t)ino);
 746
 747         istate = idr_find(mstate->ino_ctx, ino);
 748         if (istate == NULL) {
 749                 fuse_reply_err(freq, ENOENT);
 750                 return;
 751         }
 752
 753         state = talloc(mstate, struct ll_getattr_state);
 754         if (state == NULL) {
 755                 fuse_reply_err(freq, ENOMEM);
 756                 return;
 757         }
 758         state->mstate = mstate;
 759         state->freq = freq;
 760
 761         req = cli_get_unixattr_send(state, mstate->ev, mstate->cli,
 762                                     istate->path);
 763         if (req == NULL) {
 764                 TALLOC_FREE(state);
 765                 fuse_reply_err(freq, ENOMEM);
 766                 return;
 767         }
 768         tevent_req_set_callback(req, cli_ll_getattr_done, state);
 769 }
 770
 771 static void cli_ll_getattr_done(struct tevent_req *req)
 772 {
 773         struct ll_getattr_state *state = tevent_req_callback_data(
 774                 req, struct ll_getattr_state);
 775         struct stat st;
 776         NTSTATUS status;
 777         int ret;
 778
 779         status = cli_get_unixattr_recv(req, &st);
 780         TALLOC_FREE(req);
 781         if (!NT_STATUS_IS_OK(status)) {
 782                 fuse_reply_err(state->freq, map_errno_from_nt_status(status));
 783                 return;
 784         }
 785
 786         ret = fuse_reply_attr(state->freq, &st, 1);
 787         if (ret != 0) {
 788                 DBG_NOTICE("fuse_reply_attr failed: %s\n",
 789                            strerror(-errno));
 790         }
 791 }
 792
 793
 794 struct ll_open_state {
 795         struct mount_state *mstate;
 796         fuse_req_t freq;
 797         struct fuse_file_info fi;
 798 };
 799
 800 static void cli_ll_open_done(struct tevent_req *req);
 801
 802 static void cli_ll_open(fuse_req_t freq, fuse_ino_t ino,
 803                         struct fuse_file_info *fi)
 804 {
 805         struct mount_state *mstate = talloc_get_type_abort(
 806                 fuse_req_userdata(freq), struct mount_state);
 807         struct ll_open_state *state;
 808         struct inode_state *istate;
 809         struct tevent_req *req;
 810         uint32_t acc;
 811
 812         DBG_DEBUG("ino=%ju\n", (uintmax_t)ino);
 813
 814         istate = idr_find(mstate->ino_ctx, ino);
 815         if (istate == NULL) {
 816                 fuse_reply_err(freq, ENOENT);
 817                 return;
 818         }
 819
 820         state = talloc(mstate, struct ll_open_state);
 821         if (state == NULL) {
 822                 fuse_reply_err(freq, ENOMEM);
 823                 return;
 824         }
 825         state->mstate = mstate;
 826         state->freq = freq;
 827         state->fi = *fi;
 828
 829         switch (fi->flags & O_ACCMODE) {
 830         case O_RDONLY:
 831                 acc = FILE_GENERIC_READ;
 832                 break;
 833         case O_WRONLY:
 834                 acc = FILE_GENERIC_WRITE;
 835                 break;
 836         case O_RDWR:
 837                 acc = FILE_GENERIC_READ|FILE_GENERIC_WRITE;
 838                 break;
 839         default:
 840                 fuse_reply_err(freq, EACCES);
 841                 return;
 842         }
 843
 844         req = cli_smb2_create_fnum_send(
 845                 state,
 846                 mstate->ev,
 847                 mstate->cli,
 848                 istate->path,
 849                 0,
 850                 SMB2_IMPERSONATION_IMPERSONATION,
 851                 acc,
 852                 FILE_ATTRIBUTE_NORMAL,
 853                 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
 854                 FILE_OPEN,
 855                 FILE_NON_DIRECTORY_FILE,
 856                 NULL);
 857         if (req == NULL) {
 858                 TALLOC_FREE(state);
 859                 fuse_reply_err(freq, ENOMEM);
 860                 return;
 861         }
 862         tevent_req_set_callback(req, cli_ll_open_done, state);
 863 }
 864
 865 static void cli_ll_open_done(struct tevent_req *req)
 866 {
 867         struct ll_open_state *state = tevent_req_callback_data(
 868                 req, struct ll_open_state);
 869         uint16_t fnum;
 870         NTSTATUS status;
 871
 872         status = cli_smb2_create_fnum_recv(req, &fnum, NULL, NULL, NULL);
 873         TALLOC_FREE(req);
 874         if (!NT_STATUS_IS_OK(status)) {
 875                 fuse_reply_err(state->freq, map_errno_from_nt_status(status));
 876                 return;
 877         }
 878
 879         state->fi.fh = fnum;
 880         state->fi.direct_io = 0;
 881         state->fi.keep_cache = 0;
 882
 883         fuse_reply_open(state->freq, &state->fi);
 884
 885         TALLOC_FREE(state);
 886 }
 887
 888 struct ll_release_state {
 889         struct mount_state *mstate;
 890         fuse_req_t freq;
 891         fuse_ino_t ino;
 892 };
 893
 894 static void cli_ll_release_done(struct tevent_req *req);
 895
 896 static void cli_ll_release(fuse_req_t freq, fuse_ino_t ino,
 897                            struct fuse_file_info *fi)
 898 {
 899         struct mount_state *mstate = talloc_get_type_abort(
 900                 fuse_req_userdata(freq), struct mount_state);
 901         struct ll_release_state *state;
 902         struct inode_state *istate;
 903         struct tevent_req *req;
 904         uint16_t fnum;
 905
 906         DBG_DEBUG("ino=%ju\n", (uintmax_t)ino);
 907
 908         istate = idr_find(mstate->ino_ctx, ino);
 909         if (istate == NULL) {
 910                 fuse_reply_err(freq, ENOENT);
 911                 return;
 912         }
 913
 914         state = talloc(mstate, struct ll_release_state);
 915         if (state == NULL) {
 916                 fuse_reply_err(freq, ENOMEM);
 917                 return;
 918         }
 919         state->mstate = mstate;
 920         state->freq = freq;
 921         state->ino = ino;
 922
 923         fnum = fi->fh;
 924
 925         req = cli_smb2_close_fnum_send(state, mstate->ev, mstate->cli, fnum);
 926         if (req == NULL) {
 927                 TALLOC_FREE(state);
 928                 fuse_reply_err(freq, ENOMEM);
 929                 return;
 930         }
 931         tevent_req_set_callback(req, cli_ll_release_done, state);
 932 }
 933
 934 static void cli_ll_release_done(struct tevent_req *req)
 935 {
 936         struct ll_release_state *state = tevent_req_callback_data(
 937                 req, struct ll_release_state);
 938         struct inode_state *istate;
 939         NTSTATUS status;
 940
 941         status = cli_smb2_close_fnum_recv(req);
 942         TALLOC_FREE(req);
 943         if (!NT_STATUS_IS_OK(status)) {
 944                 fuse_reply_err(state->freq, map_errno_from_nt_status(status));
 945                 return;
 946         }
 947
 948         istate = idr_find(state->mstate->ino_ctx, state->ino);
 949         if (istate == NULL) {
 950                 DEBUG(1, ("%s: inode %ju vanished!\n", __func__,
 951                           (uintmax_t)state->ino));
 952         }
 953         TALLOC_FREE(istate);
 954
 955         fuse_reply_err(state->freq, 0);
 956         TALLOC_FREE(state);
 957 }
 958
 959 struct ll_read_state {
 960         struct mount_state *mstate;
 961         fuse_req_t freq;
 962 };
 963
 964 static void cli_ll_read_done(struct tevent_req *req);
 965
 966 static void cli_ll_read(fuse_req_t freq, fuse_ino_t ino,
 967                         size_t size, off_t off,
 968                         struct fuse_file_info *fi)
 969 {
 970         struct mount_state *mstate = talloc_get_type_abort(
 971                 fuse_req_userdata(freq), struct mount_state);
 972         struct ll_read_state *state;
 973         struct tevent_req *req;
 974         uint16_t fnum;
 975
 976         DBG_DEBUG("ino=%ju, size=%zu, off=%ju\n", (uintmax_t)ino,
 977                   size, (uintmax_t)off);
 978
 979         state = talloc(mstate, struct ll_read_state);
 980         if (state == NULL) {
 981                 fuse_reply_err(freq, ENOMEM);
 982                 return;
 983         }
 984         state->mstate = mstate;
 985         state->freq = freq;
 986
 987         fnum = fi->fh;
 988
 989         req = cli_smb2_read_send(state, mstate->ev, mstate->cli,
 990                                  fnum, off, size);
 991         if (req == NULL) {
 992                 TALLOC_FREE(state);
 993                 fuse_reply_err(freq, ENOMEM);
 994                 return;
 995         }
 996         tevent_req_set_callback(req, cli_ll_read_done, state);
 997 }
 998
 999 static void cli_ll_read_done(struct tevent_req *req)
1000 {
1001         struct ll_read_state *state = tevent_req_callback_data(
1002                 req, struct ll_read_state);
1003         ssize_t received;
1004         uint8_t *rcvbuf;
1005         NTSTATUS status;
1006
1007         status = cli_smb2_read_recv(req, &received, &rcvbuf);
1008         /* no talloc_free here yet */
1009
1010         if (NT_STATUS_EQUAL(status, NT_STATUS_END_OF_FILE)) {
1011                 received = 0;
1012                 rcvbuf = NULL;
1013                 status = NT_STATUS_OK;
1014         }
1015
1016         if (!NT_STATUS_IS_OK(status)) {
1017                 fuse_reply_err(state->freq, map_errno_from_nt_status(status));
1018                 return;
1019         }
1020         fuse_reply_buf(state->freq, (char *)rcvbuf, received);
1021         TALLOC_FREE(state);
1022 }
1023
1024 struct ll_write_state {
1025         struct mount_state *mstate;
1026         fuse_req_t freq;
1027 };
1028
1029 static void cli_ll_write_done(struct tevent_req *req);
1030
1031 static void cli_ll_write(fuse_req_t freq, fuse_ino_t ino, const char *buf,
1032                          size_t size, off_t off, struct fuse_file_info *fi)
1033 {
1034         struct mount_state *mstate = talloc_get_type_abort(
1035                 fuse_req_userdata(freq), struct mount_state);
1036         struct ll_write_state *state;
1037         struct tevent_req *req;
1038         uint16_t fnum;
1039
1040         DBG_DEBUG("ino=%ju, size=%zu, off=%ju\n", (uintmax_t)ino,
1041                   size, (uintmax_t)off);
1042
1043         state = talloc(mstate, struct ll_write_state);
1044         if (state == NULL) {
1045                 fuse_reply_err(freq, ENOMEM);
1046                 return;
1047         }
1048         state->mstate = mstate;
1049         state->freq = freq;
1050
1051         fnum = fi->fh;
1052
1053         req = cli_smb2_write_send(state, mstate->ev, mstate->cli, fnum, 0,
1054                                   (const uint8_t *)buf, off, size);
1055         if (req == NULL) {
1056                 TALLOC_FREE(state);
1057                 fuse_reply_err(freq, ENOMEM);
1058                 return;
1059         }
1060         tevent_req_set_callback(req, cli_ll_write_done, state);
1061 }
1062
1063 static void cli_ll_write_done(struct tevent_req *req)
1064 {
1065         struct ll_write_state *state = tevent_req_callback_data(
1066                 req, struct ll_write_state);
1067         size_t written;
1068         NTSTATUS status;
1069
1070         status = cli_smb2_write_recv(req, &written);
1071         /* no talloc_free here yet */
1072         if (!NT_STATUS_IS_OK(status)) {
1073                 fuse_reply_err(state->freq, map_errno_from_nt_status(status));
1074                 return;
1075         }
1076         fuse_reply_write(state->freq, written);
1077         TALLOC_FREE(state);
1078 }
1079
1080
1081 struct ll_dir_state {
1082         uint64_t fid_persistent;
1083         uint64_t fid_volatile;
1084
1085         struct file_info *finfos;
1086         unsigned num_finfos, num_sent;
1087 };
1088
1089 static bool ll_dir_state_add(struct ll_dir_state *dir_state,
1090                              const char *name)
1091 {
1092         struct file_info *tmp, *finfo;
1093
1094         tmp = talloc_realloc(dir_state, dir_state->finfos,
1095                              struct file_info, dir_state->num_finfos+1);
1096         if (tmp == NULL) {
1097                 return false;
1098         }
1099         dir_state->finfos = tmp;
1100         finfo = &dir_state->finfos[dir_state->num_finfos];
1101
1102         ZERO_STRUCTP(finfo);
1103
1104         finfo->name = talloc_strdup(dir_state->finfos, name);
1105         if (finfo->name == NULL) {
1106                 return false;
1107         }
1108         dir_state->num_finfos += 1;
1109
1110         return true;
1111 }
1112
1113 struct ll_opendir_state {
1114         struct mount_state *mstate;
1115         fuse_req_t freq;
1116         struct fuse_file_info fi;
1117         struct ll_dir_state *dir_state;
1118 };
1119
1120 static void cli_ll_opendir_done(struct tevent_req *req);
1121
1122 static void cli_ll_opendir(fuse_req_t freq, fuse_ino_t ino,
1123                            struct fuse_file_info *fi)
1124 {
1125         struct mount_state *mstate = talloc_get_type_abort(
1126                 fuse_req_userdata(freq), struct mount_state);
1127         struct cli_state *cli = mstate->cli;
1128         struct ll_opendir_state *state;
1129         struct inode_state *istate;
1130         struct tevent_req *req;
1131
1132         DBG_DEBUG("ino=%ju\n", (uintmax_t)ino);
1133
1134         istate = idr_find(mstate->ino_ctx, ino);
1135         if (istate == NULL) {
1136                 fuse_reply_err(freq, ENOENT);
1137                 return;
1138         }
1139
1140         state = talloc(mstate, struct ll_opendir_state);
1141         if (state == NULL) {
1142                 fuse_reply_err(freq, ENOMEM);
1143                 return;
1144         }
1145         state->mstate = mstate;
1146         state->freq = freq;
1147         state->fi = *fi;
1148
1149         state->dir_state = talloc_zero(state, struct ll_dir_state);
1150         if (state->dir_state == NULL) {
1151                 TALLOC_FREE(state);
1152                 fuse_reply_err(freq, ENOMEM);
1153                 return;
1154         }
1155
1156         req = smb2cli_create_send(
1157                 state, mstate->ev, cli->conn, cli->timeout,
1158                 cli->smb2.session, cli->smb2.tcon, istate->path,
1159                 0, SMB2_IMPERSONATION_IMPERSONATION,
1160                 FILE_GENERIC_READ, FILE_ATTRIBUTE_DIRECTORY,
1161                 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
1162                 FILE_OPEN, FILE_DIRECTORY_FILE, NULL);
1163         if (req == NULL) {
1164                 TALLOC_FREE(state);
1165                 fuse_reply_err(freq, ENOMEM);
1166                 return;
1167         }
1168         tevent_req_set_callback(req, cli_ll_opendir_done, state);
1169 }
1170
1171 static void cli_ll_opendir_done(struct tevent_req *req)
1172 {
1173         struct ll_opendir_state *state = tevent_req_callback_data(
1174                 req, struct ll_opendir_state);
1175         NTSTATUS status;
1176
1177         status = smb2cli_create_recv(req,
1178                                      &state->dir_state->fid_persistent,
1179                                      &state->dir_state->fid_volatile,
1180                                      NULL, NULL, NULL);
1181         TALLOC_FREE(req);
1182
1183         DEBUG(10, ("%s: smbcli_create_recv returned %s\n", __func__,
1184                    nt_errstr(status)));
1185
1186         if (!NT_STATUS_IS_OK(status)) {
1187                 fuse_reply_err(state->freq, map_errno_from_nt_status(status));
1188                 return;
1189         }
1190
1191         state->fi.fh = (uint64_t)talloc_move(state->mstate, &state->dir_state);
1192         state->fi.direct_io = 0;
1193         state->fi.keep_cache = 0;
1194
1195         fuse_reply_open(state->freq, &state->fi);
1196
1197         TALLOC_FREE(state);
1198 }
1199
1200 struct ll_readdir_state {
1201         fuse_req_t freq;
1202         struct ll_dir_state *dir_state;
1203 };
1204
1205 static void cli_ll_readdir_done(struct tevent_req *subreq);
1206 static NTSTATUS cli_ll_readdir_one(const char *mnt, struct file_info *finfo,
1207                                    const char *path, void *private_data);
1208 static void cli_ll_readdir_reply_one(fuse_req_t freq,
1209                                      struct ll_dir_state *dir_state);
1210
1211 static void cli_ll_readdir(fuse_req_t freq, fuse_ino_t ino, size_t size,
1212                            off_t off, struct fuse_file_info *fi)
1213 {
1214         struct mount_state *mstate = talloc_get_type_abort(
1215                 fuse_req_userdata(freq), struct mount_state);
1216         struct cli_state *cli = mstate->cli;
1217         struct ll_dir_state *dir_state;
1218         struct ll_readdir_state *state;
1219         struct tevent_req *req;
1220
1221         DBG_DEBUG("ino=%ju, size=%zu, off=%ju\n", (uintmax_t)ino, size,
1222                   (uintmax_t)off);
1223
1224         dir_state = talloc_get_type_abort((void *)fi->fh, struct ll_dir_state);
1225
1226         if (dir_state->finfos != NULL) {
1227                 DBG_DEBUG("finfos=%p\n", dir_state->finfos);
1228                 cli_ll_readdir_reply_one(freq, dir_state);
1229                 return;
1230         }
1231
1232         if (!ll_dir_state_add(dir_state, ".") ||
1233             !ll_dir_state_add(dir_state, "..")) {
1234                 fuse_reply_err(freq, ENOMEM);
1235                 return;
1236         }
1237
1238         state = talloc(mstate, struct ll_readdir_state);
1239         if (state == NULL) {
1240                 fuse_reply_err(freq, ENOMEM);
1241                 return;
1242         }
1243         state->freq = freq;
1244         state->dir_state = dir_state;
1245
1246         req = cli_smb2_listdir_send(
1247                 state, mstate->ev, cli->conn, cli->timeout,
1248                 cli->smb2.session, cli->smb2.tcon,
1249                 SMB2_FIND_ID_BOTH_DIRECTORY_INFO, 0, 0,
1250                 dir_state->fid_persistent, dir_state->fid_volatile,
1251                 "*", 0xffff,
1252                 FILE_ATTRIBUTE_DIRECTORY | FILE_ATTRIBUTE_SYSTEM |
1253                 FILE_ATTRIBUTE_HIDDEN,
1254                 NULL, NULL, cli_ll_readdir_one, dir_state);
1255         if (req == NULL) {
1256                 TALLOC_FREE(state);
1257                 fuse_reply_err(freq, ENOMEM);
1258                 return;
1259         }
1260         tevent_req_set_callback(req, cli_ll_readdir_done, state);
1261 }
1262
1263 static void cli_ll_readdir_reply_one(fuse_req_t freq,
1264                                      struct ll_dir_state *dir_state)
1265 {
1266         struct file_info *finfo;
1267         char buf[1024];
1268         struct stat sbuf = {};
1269         size_t buflen;
1270
1271         if (dir_state->num_finfos == dir_state->num_sent) {
1272                 DEBUG(10, ("%s: Done\n", __func__));
1273                 fuse_reply_buf(freq, NULL, 0);
1274                 return;
1275         }
1276
1277         sbuf.st_mode = S_IFREG | 0755;
1278         sbuf.st_ino = random(); /* FIXME :-) */
1279         finfo = &dir_state->finfos[dir_state->num_sent];
1280
1281         DBG_DEBUG("Adding %s\n", finfo->name);
1282
1283         buflen = fuse_add_direntry(freq, buf, sizeof(buf),
1284                                    finfo->name, &sbuf, 0);
1285         fuse_reply_buf(freq, buf, buflen);
1286         dir_state->num_sent += 1;
1287         return;
1288 }
1289
1290 static NTSTATUS cli_ll_readdir_one(const char *mnt, struct file_info *finfo,
1291                                    const char *path, void *private_data)
1292 {
1293         struct ll_dir_state *dir_state = talloc_get_type_abort(
1294                 private_data, struct ll_dir_state);
1295
1296         if (ISDOT(finfo->name) || ISDOTDOT(finfo->name)) {
1297                 DEBUG(10, ("%s: Ignoring %s\n", __func__, finfo->name));
1298                 return NT_STATUS_OK;
1299         }
1300
1301         DBG_DEBUG("Got entry %s\n", finfo->name);
1302
1303         if (!ll_dir_state_add(dir_state, finfo->name)) {
1304                 return NT_STATUS_NO_MEMORY;
1305         }
1306         return NT_STATUS_OK;
1307 }
1308
1309 static void cli_ll_readdir_done(struct tevent_req *req)
1310 {
1311         struct ll_readdir_state *state = tevent_req_callback_data(
1312                 req, struct ll_readdir_state);
1313         NTSTATUS status;
1314
1315         status = cli_smb2_listdir_recv(req);
1316         TALLOC_FREE(req);
1317         if (!NT_STATUS_IS_OK(status)) {
1318                 fuse_reply_err(state->freq, map_errno_from_nt_status(status));
1319                 return;
1320         }
1321         cli_ll_readdir_reply_one(state->freq, state->dir_state);
1322         TALLOC_FREE(state);
1323 }
1324
1325
1326 struct ll_releasedir_state {
1327         struct mount_state *mstate;
1328         fuse_req_t freq;
1329         struct ll_dir_state *dir_state;
1330 };
1331
1332 static void cli_ll_releasedir_done(struct tevent_req *req);
1333
1334 static void cli_ll_releasedir(fuse_req_t freq, fuse_ino_t ino,
1335                               struct fuse_file_info *fi)
1336 {
1337         struct mount_state *mstate = talloc_get_type_abort(
1338                 fuse_req_userdata(freq), struct mount_state);
1339         struct cli_state *cli = mstate->cli;
1340         struct ll_releasedir_state *state;
1341         struct tevent_req *req;
1342
1343         DBG_DEBUG("ino=%ju\n", (uintmax_t)ino);
1344
1345         state = talloc(mstate, struct ll_releasedir_state);
1346         if (state == NULL) {
1347                 fuse_reply_err(freq, ENOMEM);
1348                 return;
1349         }
1350         state->mstate = mstate;
1351         state->freq = freq;
1352
1353         state->dir_state = talloc_get_type_abort(
1354                 (void *)fi->fh, struct ll_dir_state);
1355
1356         req = smb2cli_close_send(state, mstate->ev, cli->conn, cli->timeout,
1357                                  cli->smb2.session, cli->smb2.tcon, 0,
1358                                  state->dir_state->fid_persistent,
1359                                  state->dir_state->fid_volatile);
1360         if (req == NULL) {
1361                 TALLOC_FREE(state);
1362                 fuse_reply_err(freq, ENOMEM);
1363                 return;
1364         }
1365         tevent_req_set_callback(req, cli_ll_releasedir_done, state);
1366 }
1367
1368 static void cli_ll_releasedir_done(struct tevent_req *req)
1369 {
1370         struct ll_releasedir_state *state = tevent_req_callback_data(
1371                 req, struct ll_releasedir_state);
1372         NTSTATUS status;
1373
1374         status = smb2cli_close_recv(req);
1375         TALLOC_FREE(req);
1376         if (!NT_STATUS_IS_OK(status)) {
1377                 fuse_reply_err(state->freq, map_errno_from_nt_status(status));
1378                 return;
1379         }
1380         TALLOC_FREE(state->dir_state);
1381         fuse_reply_err(state->freq, 0);
1382         TALLOC_FREE(state);
1383 }
1384
1385 static struct fuse_lowlevel_ops cli_ll_ops = {
1386         .lookup = cli_ll_lookup,
1387         .getattr = cli_ll_getattr,
1388         .open = cli_ll_open,
1389         .create = cli_ll_create,
1390         .release = cli_ll_release,
1391         .read = cli_ll_read,
1392         .write = cli_ll_write,
1393         .opendir = cli_ll_opendir,
1394         .readdir = cli_ll_readdir,
1395         .releasedir = cli_ll_releasedir,
1396 };
1397
1398 static void fuse_chan_fd_handler(struct tevent_context *ev,
1399                                  struct tevent_fd *fde,
1400                                  uint16_t flags,
1401                                  void *private_data);
1402 static void fuse_chan_signal_handler(struct tevent_context *ev,
1403                                      struct tevent_signal *se,
1404                                      int signum,
1405                                      int count,
1406                                      void *siginfo,
1407                                      void *private_data);
1408
1409 static int mount_state_destructor(struct mount_state *s);
1410
1411 int do_mount(struct cli_state *cli, const char *mountpoint)
1412 {
1413         struct mount_state *state;
1414         struct inode_state *ino;
1415         struct fuse_args args = { 0 };
1416         int fd;
1417         int ret = 1;
1418
1419         state = talloc_zero(talloc_tos(), struct mount_state);
1420         if (state == NULL) {
1421                 fprintf(stderr, "talloc failed\n");
1422                 return 1;
1423         }
1424
1425         state->ev = tevent_context_init(state);
1426         if (state->ev == NULL) {
1427                 fprintf(stderr, "tevent_context_init failed\n");
1428                 TALLOC_FREE(state);
1429                 return 1;
1430         }
1431
1432         state->ino_ctx = idr_init(state);
1433         if (state->ino_ctx == NULL) {
1434                 fprintf(stderr, "idr_init failed\n");
1435                 TALLOC_FREE(state);
1436                 return 1;
1437         }
1438
1439         state->ino_parent = talloc_new(state);
1440         if (state->ino_parent == NULL) {
1441                 fprintf(stderr, "talloc_new failed\n");
1442                 TALLOC_FREE(state);
1443                 return 1;
1444         }
1445
1446         talloc_set_destructor(state, mount_state_destructor);
1447
1448         ino = inode_state_new(state, "");
1449         if (ino == NULL) {
1450                 fprintf(stderr, "inode_state_new failed\n");
1451                 TALLOC_FREE(state);
1452                 return 1;
1453         }
1454         if (ino->ino != FUSE_ROOT_ID) {
1455                 fprintf(stderr, "first inode gave %d, expected %d\n",
1456                         (int)ino->ino, FUSE_ROOT_ID);
1457                 TALLOC_FREE(state);
1458                 return 1;
1459         }
1460
1461         state->cli = cli;
1462
1463         state->ch = fuse_mount(mountpoint, &args);
1464         if (state->ch == NULL) {
1465                 perror("fuse_mount failed");
1466                 goto fail_free;
1467         }
1468
1469         state->bufsize = fuse_chan_bufsize(state->ch);
1470         state->buf = talloc_array(state, char, state->bufsize);
1471         if (state->buf == NULL) {
1472                 fprintf(stderr, "talloc failed\n");
1473                 goto fail_unmount;
1474         }
1475
1476         fd = fuse_chan_fd(state->ch);
1477
1478         state->fde = tevent_add_fd(state->ev, state, fd, TEVENT_FD_READ,
1479                                    fuse_chan_fd_handler, state);
1480         if (state->fde == NULL) {
1481                 fprintf(stderr, "tevent_add_fd failed\n");
1482                 goto fail_unmount;
1483         }
1484
1485         state->signal_ev = tevent_add_signal(state->ev, state, SIGINT, 0,
1486                                              fuse_chan_signal_handler, state);
1487         if (state->signal_ev == NULL) {
1488                 fprintf(stderr, "tevent_add_signal failed\n");
1489                 goto fail_unmount;
1490         }
1491
1492         state->se = fuse_lowlevel_new(&args, &cli_ll_ops, sizeof(cli_ll_ops),
1493                                       state);
1494         if (state->se == NULL) {
1495                 perror("fuse_lowlevel_new failed");
1496                 goto fail_unmount;
1497         }
1498
1499         fuse_session_add_chan(state->se, state->ch);
1500
1501         while (!state->done) {
1502                 ret = tevent_loop_once(state->ev);
1503                 if (ret == -1) {
1504                         perror("tevent_loop_once failed");
1505                         break;
1506                 }
1507         }
1508
1509         fuse_session_remove_chan(state->ch);
1510         fuse_session_destroy(state->se);
1511 fail_unmount:
1512         fuse_unmount(mountpoint, state->ch);
1513 fail_free:
1514         TALLOC_FREE(state);
1515         return ret;
1516 }
1517
1518 static int mount_state_destructor(struct mount_state *s)
1519 {
1520         TALLOC_FREE(s->ino_parent);
1521         return 0;
1522 }
1523
1524
1525 static void fuse_chan_fd_handler(struct tevent_context *ev,
1526                                  struct tevent_fd *fde,
1527                                  uint16_t flags,
1528                                  void *private_data)
1529 {
1530         struct mount_state *state = talloc_get_type_abort(
1531                 private_data, struct mount_state);
1532         int recvd;
1533
1534         if ((flags & TEVENT_FD_READ) == 0) {
1535                 return;
1536         }
1537
1538         recvd = fuse_chan_recv(&state->ch, state->buf, state->bufsize);
1539         if (recvd <= 0) {
1540                 state->done = true;
1541                 return;
1542         }
1543         fuse_session_process(state->se, state->buf, recvd, state->ch);
1544 }
1545
1546 static void fuse_chan_signal_handler(struct tevent_context *ev,
1547                                      struct tevent_signal *se,
1548                                      int signum,
1549                                      int count,
1550                                      void *siginfo,
1551                                      void *private_data)
1552 {
1553         struct mount_state *state = talloc_get_type_abort(
1554                 private_data, struct mount_state);
1555         state->done = true;
1556 }