/* Unix SMB/CIFS implementation. transaction2 handling Copyright (C) Andrew Tridgell 2003 Copyright Matthieu Patou 2010 mat@matws.net This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ /* This file handles the parsing of transact2 requests */ #include "includes.h" #include "smbd/service_stream.h" #include "smb_server/smb_server.h" #include "ntvfs/ntvfs.h" #include "libcli/raw/libcliraw.h" #include "libcli/raw/raw_proto.h" #include "librpc/gen_ndr/dfsblobs.h" #include "librpc/gen_ndr/ndr_dfsblobs.h" #include "dsdb/samdb/samdb.h" #include "auth/session.h" #include "param/param.h" #include "lib/tsocket/tsocket.h" #define MAX_DFS_RESPONSE 56*1024 /* 56 Kb */ #define TRANS2_CHECK_ASYNC_STATUS_SIMPLE do { \ if (!NT_STATUS_IS_OK(req->ntvfs->async_states->status)) { \ trans2_setup_reply(trans, 0, 0, 0);\ return req->ntvfs->async_states->status; \ } \ } while (0) #define TRANS2_CHECK_ASYNC_STATUS(ptr, type) do { \ TRANS2_CHECK_ASYNC_STATUS_SIMPLE; \ ptr = talloc_get_type(op->op_info, type); \ } while (0) #define TRANS2_CHECK(cmd) do { \ NTSTATUS _status; \ _status = cmd; \ NT_STATUS_NOT_OK_RETURN(_status); \ } while (0) /* hold the state of a nttrans op while in progress. Needed to allow for async backend functions. */ struct trans_op { struct smbsrv_request *req; struct smb_trans2 *trans; uint8_t command; NTSTATUS (*send_fn)(struct trans_op *); void *op_info; }; /* A DC set is a group of DC, they might have been grouped together because they belong to the same site, or to site with same cost ... */ struct dc_set { const char **names; uint32_t count; }; #define CHECK_MIN_BLOB_SIZE(blob, size) do { \ if ((blob)->length < (size)) { \ return NT_STATUS_INFO_LENGTH_MISMATCH; \ }} while (0) /* setup a trans2 reply, given the data and params sizes */ static NTSTATUS trans2_setup_reply(struct smb_trans2 *trans, uint16_t param_size, uint16_t data_size, uint8_t setup_count) { trans->out.setup_count = setup_count; if (setup_count > 0) { trans->out.setup = talloc_zero_array(trans, uint16_t, setup_count); NT_STATUS_HAVE_NO_MEMORY(trans->out.setup); } trans->out.params = data_blob_talloc(trans, NULL, param_size); if (param_size > 0) NT_STATUS_HAVE_NO_MEMORY(trans->out.params.data); trans->out.data = data_blob_talloc(trans, NULL, data_size); if (data_size > 0) NT_STATUS_HAVE_NO_MEMORY(trans->out.data.data); return NT_STATUS_OK; } static NTSTATUS trans2_push_fsinfo(struct smbsrv_connection *smb_conn, TALLOC_CTX *mem_ctx, DATA_BLOB *blob, union smb_fsinfo *fsinfo, int default_str_flags) { enum smb_fsinfo_level passthru_level; switch (fsinfo->generic.level) { case RAW_QFS_ALLOCATION: TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, 18)); SIVAL(blob->data, 0, fsinfo->allocation.out.fs_id); SIVAL(blob->data, 4, fsinfo->allocation.out.sectors_per_unit); SIVAL(blob->data, 8, fsinfo->allocation.out.total_alloc_units); SIVAL(blob->data, 12, fsinfo->allocation.out.avail_alloc_units); SSVAL(blob->data, 16, fsinfo->allocation.out.bytes_per_sector); return NT_STATUS_OK; case RAW_QFS_VOLUME: TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, 5)); SIVAL(blob->data, 0, fsinfo->volume.out.serial_number); /* w2k3 implements this incorrectly for unicode - it * leaves the last byte off the string */ TRANS2_CHECK(smbsrv_blob_append_string(mem_ctx, blob, fsinfo->volume.out.volume_name.s, 4, default_str_flags, STR_LEN8BIT|STR_NOALIGN)); return NT_STATUS_OK; case RAW_QFS_VOLUME_INFO: passthru_level = RAW_QFS_VOLUME_INFORMATION; break; case RAW_QFS_SIZE_INFO: passthru_level = RAW_QFS_SIZE_INFORMATION; break; case RAW_QFS_DEVICE_INFO: passthru_level = RAW_QFS_DEVICE_INFORMATION; break; case RAW_QFS_ATTRIBUTE_INFO: passthru_level = RAW_QFS_ATTRIBUTE_INFORMATION; break; default: passthru_level = fsinfo->generic.level; break; } return smbsrv_push_passthru_fsinfo(mem_ctx, blob, passthru_level, fsinfo, default_str_flags); } /* trans2 qfsinfo implementation send */ static NTSTATUS trans2_qfsinfo_send(struct trans_op *op) { struct smbsrv_request *req = op->req; struct smb_trans2 *trans = op->trans; union smb_fsinfo *fsinfo; TRANS2_CHECK_ASYNC_STATUS(fsinfo, union smb_fsinfo); TRANS2_CHECK(trans2_setup_reply(trans, 0, 0, 0)); TRANS2_CHECK(trans2_push_fsinfo(req->smb_conn, trans, &trans->out.data, fsinfo, SMBSRV_REQ_DEFAULT_STR_FLAGS(req))); return NT_STATUS_OK; } /* trans2 qfsinfo implementation */ static NTSTATUS trans2_qfsinfo(struct smbsrv_request *req, struct trans_op *op) { struct smb_trans2 *trans = op->trans; union smb_fsinfo *fsinfo; uint16_t level; /* make sure we got enough parameters */ if (trans->in.params.length != 2) { return NT_STATUS_FOOBAR; } fsinfo = talloc(op, union smb_fsinfo); NT_STATUS_HAVE_NO_MEMORY(fsinfo); level = SVAL(trans->in.params.data, 0); /* work out the backend level - we make it 1-1 in the header */ fsinfo->generic.level = (enum smb_fsinfo_level)level; if (fsinfo->generic.level >= RAW_QFS_GENERIC) { return NT_STATUS_INVALID_LEVEL; } op->op_info = fsinfo; op->send_fn = trans2_qfsinfo_send; return ntvfs_fsinfo(req->ntvfs, fsinfo); } /* trans2 open implementation send */ static NTSTATUS trans2_open_send(struct trans_op *op) { struct smbsrv_request *req = op->req; struct smb_trans2 *trans = op->trans; union smb_open *io; TRANS2_CHECK_ASYNC_STATUS(io, union smb_open); TRANS2_CHECK(trans2_setup_reply(trans, 30, 0, 0)); smbsrv_push_fnum(trans->out.params.data, VWV(0), io->t2open.out.file.ntvfs); SSVAL(trans->out.params.data, VWV(1), io->t2open.out.attrib); srv_push_dos_date3(req->smb_conn, trans->out.params.data, VWV(2), io->t2open.out.write_time); SIVAL(trans->out.params.data, VWV(4), io->t2open.out.size); SSVAL(trans->out.params.data, VWV(6), io->t2open.out.access); SSVAL(trans->out.params.data, VWV(7), io->t2open.out.ftype); SSVAL(trans->out.params.data, VWV(8), io->t2open.out.devstate); SSVAL(trans->out.params.data, VWV(9), io->t2open.out.action); SIVAL(trans->out.params.data, VWV(10), 0); /* reserved */ SSVAL(trans->out.params.data, VWV(12), 0); /* EaErrorOffset */ SIVAL(trans->out.params.data, VWV(13), 0); /* EaLength */ return NT_STATUS_OK; } /* trans2 open implementation */ static NTSTATUS trans2_open(struct smbsrv_request *req, struct trans_op *op) { struct smb_trans2 *trans = op->trans; union smb_open *io; /* make sure we got enough parameters */ if (trans->in.params.length < 29) { return NT_STATUS_FOOBAR; } io = talloc(op, union smb_open); NT_STATUS_HAVE_NO_MEMORY(io); io->t2open.level = RAW_OPEN_T2OPEN; io->t2open.in.flags = SVAL(trans->in.params.data, VWV(0)); io->t2open.in.open_mode = SVAL(trans->in.params.data, VWV(1)); io->t2open.in.search_attrs = SVAL(trans->in.params.data, VWV(2)); io->t2open.in.file_attrs = SVAL(trans->in.params.data, VWV(3)); io->t2open.in.write_time = srv_pull_dos_date(req->smb_conn, trans->in.params.data + VWV(4)); io->t2open.in.open_func = SVAL(trans->in.params.data, VWV(6)); io->t2open.in.size = IVAL(trans->in.params.data, VWV(7)); io->t2open.in.timeout = IVAL(trans->in.params.data, VWV(9)); io->t2open.in.num_eas = 0; io->t2open.in.eas = NULL; smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 28, &io->t2open.in.fname, 0); if (io->t2open.in.fname == NULL) { return NT_STATUS_FOOBAR; } TRANS2_CHECK(ea_pull_list(&trans->in.data, io, &io->t2open.in.num_eas, &io->t2open.in.eas)); op->op_info = io; op->send_fn = trans2_open_send; return ntvfs_open(req->ntvfs, io); } /* trans2 simple send */ static NTSTATUS trans2_simple_send(struct trans_op *op) { struct smbsrv_request *req = op->req; struct smb_trans2 *trans = op->trans; TRANS2_CHECK_ASYNC_STATUS_SIMPLE; TRANS2_CHECK(trans2_setup_reply(trans, 2, 0, 0)); SSVAL(trans->out.params.data, VWV(0), 0); return NT_STATUS_OK; } /* trans2 mkdir implementation */ static NTSTATUS trans2_mkdir(struct smbsrv_request *req, struct trans_op *op) { struct smb_trans2 *trans = op->trans; union smb_mkdir *io; /* make sure we got enough parameters */ if (trans->in.params.length < 5) { return NT_STATUS_FOOBAR; } io = talloc(op, union smb_mkdir); NT_STATUS_HAVE_NO_MEMORY(io); io->t2mkdir.level = RAW_MKDIR_T2MKDIR; smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 4, &io->t2mkdir.in.path, 0); if (io->t2mkdir.in.path == NULL) { return NT_STATUS_FOOBAR; } TRANS2_CHECK(ea_pull_list(&trans->in.data, io, &io->t2mkdir.in.num_eas, &io->t2mkdir.in.eas)); op->op_info = io; op->send_fn = trans2_simple_send; return ntvfs_mkdir(req->ntvfs, io); } static NTSTATUS trans2_push_fileinfo(struct smbsrv_connection *smb_conn, TALLOC_CTX *mem_ctx, DATA_BLOB *blob, union smb_fileinfo *st, int default_str_flags) { uint32_t list_size; enum smb_fileinfo_level passthru_level; switch (st->generic.level) { case RAW_FILEINFO_GENERIC: case RAW_FILEINFO_GETATTR: case RAW_FILEINFO_GETATTRE: case RAW_FILEINFO_SEC_DESC: case RAW_FILEINFO_SMB2_ALL_EAS: case RAW_FILEINFO_SMB2_ALL_INFORMATION: /* handled elsewhere */ return NT_STATUS_INVALID_LEVEL; case RAW_FILEINFO_UNIX_BASIC: case RAW_FILEINFO_UNIX_LINK: /* not implemented yet */ return NT_STATUS_INVALID_LEVEL; case RAW_FILEINFO_STANDARD: TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, 22)); srv_push_dos_date2(smb_conn, blob->data, 0, st->standard.out.create_time); srv_push_dos_date2(smb_conn, blob->data, 4, st->standard.out.access_time); srv_push_dos_date2(smb_conn, blob->data, 8, st->standard.out.write_time); SIVAL(blob->data, 12, st->standard.out.size); SIVAL(blob->data, 16, st->standard.out.alloc_size); SSVAL(blob->data, 20, st->standard.out.attrib); return NT_STATUS_OK; case RAW_FILEINFO_EA_SIZE: TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, 26)); srv_push_dos_date2(smb_conn, blob->data, 0, st->ea_size.out.create_time); srv_push_dos_date2(smb_conn, blob->data, 4, st->ea_size.out.access_time); srv_push_dos_date2(smb_conn, blob->data, 8, st->ea_size.out.write_time); SIVAL(blob->data, 12, st->ea_size.out.size); SIVAL(blob->data, 16, st->ea_size.out.alloc_size); SSVAL(blob->data, 20, st->ea_size.out.attrib); SIVAL(blob->data, 22, st->ea_size.out.ea_size); return NT_STATUS_OK; case RAW_FILEINFO_EA_LIST: list_size = ea_list_size(st->ea_list.out.num_eas, st->ea_list.out.eas); TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, list_size)); ea_put_list(blob->data, st->ea_list.out.num_eas, st->ea_list.out.eas); return NT_STATUS_OK; case RAW_FILEINFO_ALL_EAS: list_size = ea_list_size(st->all_eas.out.num_eas, st->all_eas.out.eas); TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, list_size)); ea_put_list(blob->data, st->all_eas.out.num_eas, st->all_eas.out.eas); return NT_STATUS_OK; case RAW_FILEINFO_IS_NAME_VALID: return NT_STATUS_OK; case RAW_FILEINFO_BASIC_INFO: passthru_level = RAW_FILEINFO_BASIC_INFORMATION; break; case RAW_FILEINFO_STANDARD_INFO: passthru_level = RAW_FILEINFO_STANDARD_INFORMATION; break; case RAW_FILEINFO_EA_INFO: passthru_level = RAW_FILEINFO_EA_INFORMATION; break; case RAW_FILEINFO_COMPRESSION_INFO: passthru_level = RAW_FILEINFO_COMPRESSION_INFORMATION; break; case RAW_FILEINFO_ALL_INFO: passthru_level = RAW_FILEINFO_ALL_INFORMATION; break; case RAW_FILEINFO_NAME_INFO: passthru_level = RAW_FILEINFO_NAME_INFORMATION; break; case RAW_FILEINFO_ALT_NAME_INFO: passthru_level = RAW_FILEINFO_ALT_NAME_INFORMATION; break; case RAW_FILEINFO_STREAM_INFO: passthru_level = RAW_FILEINFO_STREAM_INFORMATION; break; default: passthru_level = st->generic.level; break; } return smbsrv_push_passthru_fileinfo(mem_ctx, blob, passthru_level, st, default_str_flags); } /* fill in the reply from a qpathinfo or qfileinfo call */ static NTSTATUS trans2_fileinfo_send(struct trans_op *op) { struct smbsrv_request *req = op->req; struct smb_trans2 *trans = op->trans; union smb_fileinfo *st; TRANS2_CHECK_ASYNC_STATUS(st, union smb_fileinfo); TRANS2_CHECK(trans2_setup_reply(trans, 2, 0, 0)); SSVAL(trans->out.params.data, 0, 0); TRANS2_CHECK(trans2_push_fileinfo(req->smb_conn, trans, &trans->out.data, st, SMBSRV_REQ_DEFAULT_STR_FLAGS(req))); return NT_STATUS_OK; } /* trans2 qpathinfo implementation */ static NTSTATUS trans2_qpathinfo(struct smbsrv_request *req, struct trans_op *op) { struct smb_trans2 *trans = op->trans; union smb_fileinfo *st; uint16_t level; /* make sure we got enough parameters */ if (trans->in.params.length < 2) { return NT_STATUS_FOOBAR; } st = talloc(op, union smb_fileinfo); NT_STATUS_HAVE_NO_MEMORY(st); level = SVAL(trans->in.params.data, 0); smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 6, &st->generic.in.file.path, 0); if (st->generic.in.file.path == NULL) { return NT_STATUS_FOOBAR; } /* work out the backend level - we make it 1-1 in the header */ st->generic.level = (enum smb_fileinfo_level)level; if (st->generic.level >= RAW_FILEINFO_GENERIC) { return NT_STATUS_INVALID_LEVEL; } if (st->generic.level == RAW_FILEINFO_EA_LIST) { TRANS2_CHECK(ea_pull_name_list(&trans->in.data, req, &st->ea_list.in.num_names, &st->ea_list.in.ea_names)); } op->op_info = st; op->send_fn = trans2_fileinfo_send; return ntvfs_qpathinfo(req->ntvfs, st); } /* trans2 qpathinfo implementation */ static NTSTATUS trans2_qfileinfo(struct smbsrv_request *req, struct trans_op *op) { struct smb_trans2 *trans = op->trans; union smb_fileinfo *st; uint16_t level; struct ntvfs_handle *h; /* make sure we got enough parameters */ if (trans->in.params.length < 4) { return NT_STATUS_FOOBAR; } st = talloc(op, union smb_fileinfo); NT_STATUS_HAVE_NO_MEMORY(st); h = smbsrv_pull_fnum(req, trans->in.params.data, 0); level = SVAL(trans->in.params.data, 2); st->generic.in.file.ntvfs = h; /* work out the backend level - we make it 1-1 in the header */ st->generic.level = (enum smb_fileinfo_level)level; if (st->generic.level >= RAW_FILEINFO_GENERIC) { return NT_STATUS_INVALID_LEVEL; } if (st->generic.level == RAW_FILEINFO_EA_LIST) { TRANS2_CHECK(ea_pull_name_list(&trans->in.data, req, &st->ea_list.in.num_names, &st->ea_list.in.ea_names)); } op->op_info = st; op->send_fn = trans2_fileinfo_send; SMBSRV_CHECK_FILE_HANDLE_NTSTATUS(st->generic.in.file.ntvfs); return ntvfs_qfileinfo(req->ntvfs, st); } /* parse a trans2 setfileinfo/setpathinfo data blob */ static NTSTATUS trans2_parse_sfileinfo(struct smbsrv_request *req, union smb_setfileinfo *st, const DATA_BLOB *blob) { enum smb_setfileinfo_level passthru_level; switch (st->generic.level) { case RAW_SFILEINFO_GENERIC: case RAW_SFILEINFO_SETATTR: case RAW_SFILEINFO_SETATTRE: case RAW_SFILEINFO_SEC_DESC: /* handled elsewhere */ return NT_STATUS_INVALID_LEVEL; case RAW_SFILEINFO_STANDARD: CHECK_MIN_BLOB_SIZE(blob, 12); st->standard.in.create_time = srv_pull_dos_date2(req->smb_conn, blob->data + 0); st->standard.in.access_time = srv_pull_dos_date2(req->smb_conn, blob->data + 4); st->standard.in.write_time = srv_pull_dos_date2(req->smb_conn, blob->data + 8); return NT_STATUS_OK; case RAW_SFILEINFO_EA_SET: return ea_pull_list(blob, req, &st->ea_set.in.num_eas, &st->ea_set.in.eas); case SMB_SFILEINFO_BASIC_INFO: case SMB_SFILEINFO_BASIC_INFORMATION: passthru_level = SMB_SFILEINFO_BASIC_INFORMATION; break; case SMB_SFILEINFO_DISPOSITION_INFO: case SMB_SFILEINFO_DISPOSITION_INFORMATION: passthru_level = SMB_SFILEINFO_DISPOSITION_INFORMATION; break; case SMB_SFILEINFO_ALLOCATION_INFO: case SMB_SFILEINFO_ALLOCATION_INFORMATION: passthru_level = SMB_SFILEINFO_ALLOCATION_INFORMATION; break; case RAW_SFILEINFO_END_OF_FILE_INFO: case RAW_SFILEINFO_END_OF_FILE_INFORMATION: passthru_level = RAW_SFILEINFO_END_OF_FILE_INFORMATION; break; case RAW_SFILEINFO_RENAME_INFORMATION: case RAW_SFILEINFO_POSITION_INFORMATION: case RAW_SFILEINFO_MODE_INFORMATION: passthru_level = st->generic.level; break; case RAW_SFILEINFO_UNIX_BASIC: case RAW_SFILEINFO_UNIX_LINK: case RAW_SFILEINFO_UNIX_HLINK: case RAW_SFILEINFO_PIPE_INFORMATION: case RAW_SFILEINFO_VALID_DATA_INFORMATION: case RAW_SFILEINFO_SHORT_NAME_INFORMATION: case RAW_SFILEINFO_1025: case RAW_SFILEINFO_1027: case RAW_SFILEINFO_1029: case RAW_SFILEINFO_1030: case RAW_SFILEINFO_1031: case RAW_SFILEINFO_1032: case RAW_SFILEINFO_1036: case RAW_SFILEINFO_1041: case RAW_SFILEINFO_1042: case RAW_SFILEINFO_1043: case RAW_SFILEINFO_1044: return NT_STATUS_INVALID_LEVEL; default: /* we need a default here to cope with invalid values on the wire */ return NT_STATUS_INVALID_LEVEL; } return smbsrv_pull_passthru_sfileinfo(st, passthru_level, st, blob, SMBSRV_REQ_DEFAULT_STR_FLAGS(req), &req->in.bufinfo); } /* trans2 setfileinfo implementation */ static NTSTATUS trans2_setfileinfo(struct smbsrv_request *req, struct trans_op *op) { struct smb_trans2 *trans = op->trans; union smb_setfileinfo *st; uint16_t level; struct ntvfs_handle *h; /* make sure we got enough parameters */ if (trans->in.params.length < 4) { return NT_STATUS_FOOBAR; } st = talloc(op, union smb_setfileinfo); NT_STATUS_HAVE_NO_MEMORY(st); h = smbsrv_pull_fnum(req, trans->in.params.data, 0); level = SVAL(trans->in.params.data, 2); st->generic.in.file.ntvfs = h; /* work out the backend level - we make it 1-1 in the header */ st->generic.level = (enum smb_setfileinfo_level)level; if (st->generic.level >= RAW_SFILEINFO_GENERIC) { return NT_STATUS_INVALID_LEVEL; } TRANS2_CHECK(trans2_parse_sfileinfo(req, st, &trans->in.data)); op->op_info = st; op->send_fn = trans2_simple_send; SMBSRV_CHECK_FILE_HANDLE_NTSTATUS(st->generic.in.file.ntvfs); return ntvfs_setfileinfo(req->ntvfs, st); } /* trans2 setpathinfo implementation */ static NTSTATUS trans2_setpathinfo(struct smbsrv_request *req, struct trans_op *op) { struct smb_trans2 *trans = op->trans; union smb_setfileinfo *st; uint16_t level; /* make sure we got enough parameters */ if (trans->in.params.length < 4) { return NT_STATUS_FOOBAR; } st = talloc(op, union smb_setfileinfo); NT_STATUS_HAVE_NO_MEMORY(st); level = SVAL(trans->in.params.data, 0); smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 6, &st->generic.in.file.path, 0); if (st->generic.in.file.path == NULL) { return NT_STATUS_FOOBAR; } /* work out the backend level - we make it 1-1 in the header */ st->generic.level = (enum smb_setfileinfo_level)level; if (st->generic.level >= RAW_SFILEINFO_GENERIC) { return NT_STATUS_INVALID_LEVEL; } TRANS2_CHECK(trans2_parse_sfileinfo(req, st, &trans->in.data)); op->op_info = st; op->send_fn = trans2_simple_send; return ntvfs_setpathinfo(req->ntvfs, st); } /* a structure to encapsulate the state information about an in-progress ffirst/fnext operation */ struct find_state { struct trans_op *op; void *search; enum smb_search_data_level data_level; uint16_t last_entry_offset; uint16_t flags; }; /* fill a single entry in a trans2 find reply */ static NTSTATUS find_fill_info(struct find_state *state, const union smb_search_data *file) { struct smbsrv_request *req = state->op->req; struct smb_trans2 *trans = state->op->trans; uint8_t *data; unsigned int ofs = trans->out.data.length; uint32_t ea_size; switch (state->data_level) { case RAW_SEARCH_DATA_GENERIC: case RAW_SEARCH_DATA_SEARCH: /* handled elsewhere */ return NT_STATUS_INVALID_LEVEL; case RAW_SEARCH_DATA_STANDARD: if (state->flags & FLAG_TRANS2_FIND_REQUIRE_RESUME) { TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 27)); SIVAL(trans->out.data.data, ofs, file->standard.resume_key); ofs += 4; } else { TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 23)); } data = trans->out.data.data + ofs; srv_push_dos_date2(req->smb_conn, data, 0, file->standard.create_time); srv_push_dos_date2(req->smb_conn, data, 4, file->standard.access_time); srv_push_dos_date2(req->smb_conn, data, 8, file->standard.write_time); SIVAL(data, 12, file->standard.size); SIVAL(data, 16, file->standard.alloc_size); SSVAL(data, 20, file->standard.attrib); TRANS2_CHECK(smbsrv_blob_append_string(trans, &trans->out.data, file->standard.name.s, ofs + 22, SMBSRV_REQ_DEFAULT_STR_FLAGS(req), STR_LEN8BIT | STR_TERMINATE | STR_LEN_NOTERM)); break; case RAW_SEARCH_DATA_EA_SIZE: if (state->flags & FLAG_TRANS2_FIND_REQUIRE_RESUME) { TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 31)); SIVAL(trans->out.data.data, ofs, file->ea_size.resume_key); ofs += 4; } else { TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 27)); } data = trans->out.data.data + ofs; srv_push_dos_date2(req->smb_conn, data, 0, file->ea_size.create_time); srv_push_dos_date2(req->smb_conn, data, 4, file->ea_size.access_time); srv_push_dos_date2(req->smb_conn, data, 8, file->ea_size.write_time); SIVAL(data, 12, file->ea_size.size); SIVAL(data, 16, file->ea_size.alloc_size); SSVAL(data, 20, file->ea_size.attrib); SIVAL(data, 22, file->ea_size.ea_size); TRANS2_CHECK(smbsrv_blob_append_string(trans, &trans->out.data, file->ea_size.name.s, ofs + 26, SMBSRV_REQ_DEFAULT_STR_FLAGS(req), STR_LEN8BIT | STR_NOALIGN)); TRANS2_CHECK(smbsrv_blob_fill_data(trans, &trans->out.data, trans->out.data.length + 1)); break; case RAW_SEARCH_DATA_EA_LIST: ea_size = ea_list_size(file->ea_list.eas.num_eas, file->ea_list.eas.eas); if (state->flags & FLAG_TRANS2_FIND_REQUIRE_RESUME) { TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 27 + ea_size)); SIVAL(trans->out.data.data, ofs, file->ea_list.resume_key); ofs += 4; } else { TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 23 + ea_size)); } data = trans->out.data.data + ofs; srv_push_dos_date2(req->smb_conn, data, 0, file->ea_list.create_time); srv_push_dos_date2(req->smb_conn, data, 4, file->ea_list.access_time); srv_push_dos_date2(req->smb_conn, data, 8, file->ea_list.write_time); SIVAL(data, 12, file->ea_list.size); SIVAL(data, 16, file->ea_list.alloc_size); SSVAL(data, 20, file->ea_list.attrib); ea_put_list(data+22, file->ea_list.eas.num_eas, file->ea_list.eas.eas); TRANS2_CHECK(smbsrv_blob_append_string(trans, &trans->out.data, file->ea_list.name.s, ofs + 22 + ea_size, SMBSRV_REQ_DEFAULT_STR_FLAGS(req), STR_LEN8BIT | STR_NOALIGN)); TRANS2_CHECK(smbsrv_blob_fill_data(trans, &trans->out.data, trans->out.data.length + 1)); break; case RAW_SEARCH_DATA_DIRECTORY_INFO: case RAW_SEARCH_DATA_FULL_DIRECTORY_INFO: case RAW_SEARCH_DATA_NAME_INFO: case RAW_SEARCH_DATA_BOTH_DIRECTORY_INFO: case RAW_SEARCH_DATA_ID_FULL_DIRECTORY_INFO: case RAW_SEARCH_DATA_ID_BOTH_DIRECTORY_INFO: return smbsrv_push_passthru_search(trans, &trans->out.data, state->data_level, file, SMBSRV_REQ_DEFAULT_STR_FLAGS(req)); case RAW_SEARCH_DATA_UNIX_INFO: case RAW_SEARCH_DATA_UNIX_INFO2: return NT_STATUS_INVALID_LEVEL; } return NT_STATUS_OK; } /* callback function for trans2 findfirst/findnext */ static bool find_callback(void *private_data, const union smb_search_data *file) { struct find_state *state = talloc_get_type(private_data, struct find_state); struct smb_trans2 *trans = state->op->trans; unsigned int old_length; old_length = trans->out.data.length; if (!NT_STATUS_IS_OK(find_fill_info(state, file)) || trans->out.data.length > trans->in.max_data) { /* restore the old length and tell the backend to stop */ smbsrv_blob_grow_data(trans, &trans->out.data, old_length); return false; } state->last_entry_offset = old_length; return true; } /* trans2 findfirst send */ static NTSTATUS trans2_findfirst_send(struct trans_op *op) { struct smbsrv_request *req = op->req; struct smb_trans2 *trans = op->trans; union smb_search_first *search; struct find_state *state; uint8_t *param; TRANS2_CHECK_ASYNC_STATUS(state, struct find_state); search = talloc_get_type(state->search, union smb_search_first); /* fill in the findfirst reply header */ param = trans->out.params.data; SSVAL(param, VWV(0), search->t2ffirst.out.handle); SSVAL(param, VWV(1), search->t2ffirst.out.count); SSVAL(param, VWV(2), search->t2ffirst.out.end_of_search); SSVAL(param, VWV(3), 0); SSVAL(param, VWV(4), state->last_entry_offset); return NT_STATUS_OK; } /* fill a referral type structure */ static NTSTATUS fill_normal_dfs_referraltype(struct dfs_referral_type *ref, uint16_t version, const char *dfs_path, const char *server_path, int isfirstoffset) { switch (version) { case 3: ZERO_STRUCTP(ref); ref->version = version; ref->referral.v3.data.server_type = DFS_SERVER_NON_ROOT; /* "normal" referral seems to always include the GUID */ ref->referral.v3.size = 34; ref->referral.v3.data.entry_flags = 0; ref->referral.v3.data.ttl = 600; /* As w2k3 */ ref->referral.v3.data.referrals.r1.DFS_path = dfs_path; ref->referral.v3.data.referrals.r1.DFS_alt_path = dfs_path; ref->referral.v3.data.referrals.r1.netw_address = server_path; return NT_STATUS_OK; case 4: ZERO_STRUCTP(ref); ref->version = version; ref->referral.v4.server_type = DFS_SERVER_NON_ROOT; /* "normal" referral seems to always include the GUID */ ref->referral.v4.size = 34; if (isfirstoffset) { ref->referral.v4.entry_flags = DFS_HEADER_FLAG_TARGET_BCK; } ref->referral.v4.ttl = 600; /* As w2k3 */ ref->referral.v4.r1.DFS_path = dfs_path; ref->referral.v4.r1.DFS_alt_path = dfs_path; ref->referral.v4.r1.netw_address = server_path; return NT_STATUS_OK; } return NT_STATUS_INVALID_LEVEL; } /* fill a domain refererral */ static NTSTATUS fill_domain_dfs_referraltype(struct dfs_referral_type *ref, uint16_t version, const char *domain, const char **names, uint16_t numnames) { switch (version) { case 3: ZERO_STRUCTP(ref); ref->version = version; ref->referral.v3.data.server_type = DFS_SERVER_NON_ROOT; /* It's hard coded ... don't think it's a good way but the sizeof return not the * correct values * * We have 18 if the GUID is not included 34 otherwise */ ref->referral.v3.size = 18; ref->referral.v3.data.entry_flags = DFS_FLAG_REFERRAL_DOMAIN_RESP; ref->referral.v3.data.ttl = 600; /* As w2k3 */ ref->referral.v3.data.referrals.r2.special_name = domain; ref->referral.v3.data.referrals.r2.nb_expanded_names = numnames; /* Put the final terminator */ if (names) { const char **names2 = talloc_array(ref, const char *, numnames+1); NT_STATUS_HAVE_NO_MEMORY(names2); int i; for (i = 0; ireferral.v3.data.referrals.r2.expanded_names = names2; } return NT_STATUS_OK; } return NT_STATUS_INVALID_LEVEL; } /* get the DCs list within a site */ static NTSTATUS get_dcs_insite(TALLOC_CTX *ctx, struct ldb_context *ldb, struct ldb_dn *sitedn, struct dc_set *list, bool dofqdn) { static const char *attrs[] = { "serverReference", NULL }; static const char *attrs2[] = { "dNSHostName", "sAMAccountName", NULL }; struct ldb_result *r; unsigned int i; int ret; const char **dc_list; ret = ldb_search(ldb, ctx, &r, sitedn, LDB_SCOPE_SUBTREE, attrs, "(&(objectClass=server)(serverReference=*))"); if (ret != LDB_SUCCESS) { DEBUG(2,(__location__ ": Failed to get list of servers - %s\n", ldb_errstring(ldb))); return NT_STATUS_INTERNAL_ERROR; } if (r->count == 0) { /* none in this site */ talloc_free(r); return NT_STATUS_OK; } /* * need to search for all server object to know the size of the array. * Search all the object of class server in this site */ dc_list = talloc_array(r, const char *, r->count); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(dc_list, r); /* TODO put some random here in the order */ list->names = talloc_realloc(list, list->names, const char *, list->count + r->count); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(list->names, r); for (i = 0; icount; i++) { struct ldb_dn *dn; struct ldb_result *r2; dn = ldb_msg_find_attr_as_dn(ldb, ctx, r->msgs[i], "serverReference"); if (!dn) { return NT_STATUS_INTERNAL_ERROR; } ret = ldb_search(ldb, r, &r2, dn, LDB_SCOPE_BASE, attrs2, "(objectClass=computer)"); if (ret != LDB_SUCCESS) { DEBUG(2,(__location__ ": Search for computer on %s failed - %s\n", ldb_dn_get_linearized(dn), ldb_errstring(ldb))); return NT_STATUS_INTERNAL_ERROR; } if (dofqdn) { const char *dns = ldb_msg_find_attr_as_string(r2->msgs[0], "dNSHostName", NULL); if (dns == NULL) { DEBUG(2,(__location__ ": dNSHostName missing on %s\n", ldb_dn_get_linearized(dn))); talloc_free(r); return NT_STATUS_INTERNAL_ERROR; } list->names[list->count] = talloc_strdup(list->names, dns); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(list->names[list->count], r); } else { char *tmp; const char *acct = ldb_msg_find_attr_as_string(r2->msgs[0], "sAMAccountName", NULL); if (acct == NULL) { DEBUG(2,(__location__ ": sAMAccountName missing on %s\n", ldb_dn_get_linearized(dn))); talloc_free(r); return NT_STATUS_INTERNAL_ERROR; } tmp = talloc_strdup(list->names, acct); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(tmp, r); /* Netbios name is also the sAMAccountName for computer but without the final $ */ tmp[strlen(tmp) - 1] = '\0'; list->names[list->count] = tmp; } list->count++; talloc_free(r2); } talloc_free(r); return NT_STATUS_OK; } /* get all DCs */ static NTSTATUS get_dcs(TALLOC_CTX *ctx, struct ldb_context *ldb, const char *searched_site, bool need_fqdn, struct dc_set ***pset_list, uint32_t flags) { /* * Flags will be used later to indicate things like least-expensive * or same-site options */ const char *attrs_none[] = { NULL }; const char *attrs3[] = { "name", NULL }; struct ldb_dn *configdn, *sitedn, *dn, *sitescontainerdn; struct ldb_result *r; struct dc_set **set_list = NULL; uint32_t i; int ret; uint32_t current_pos = 0; NTSTATUS status; TALLOC_CTX *subctx = talloc_new(ctx); *pset_list = set_list = NULL; subctx = talloc_new(ctx); NT_STATUS_HAVE_NO_MEMORY(subctx); configdn = ldb_get_config_basedn(ldb); /* Let's search for the Site container */ ret = ldb_search(ldb, subctx, &r, configdn, LDB_SCOPE_SUBTREE, attrs_none, "(objectClass=sitesContainer)"); if (ret != LDB_SUCCESS) { DEBUG(2,(__location__ ": Failed to find sitesContainer within %s - %s\n", ldb_dn_get_linearized(configdn), ldb_errstring(ldb))); talloc_free(subctx); return NT_STATUS_INTERNAL_ERROR; } if (r->count > 1) { DEBUG(2,(__location__ ": Expected 1 sitesContainer - found %u within %s\n", r->count, ldb_dn_get_linearized(configdn))); talloc_free(subctx); return NT_STATUS_INTERNAL_ERROR; } sitescontainerdn = talloc_steal(subctx, r->msgs[0]->dn); talloc_free(r); /* * TODO: Here we should have a more subtle handling * for the case "same-site" */ ret = ldb_search(ldb, subctx, &r, sitescontainerdn, LDB_SCOPE_SUBTREE, attrs_none, "(objectClass=server)"); if (ret != LDB_SUCCESS) { DEBUG(2,(__location__ ": Failed to find servers within %s - %s\n", ldb_dn_get_linearized(sitescontainerdn), ldb_errstring(ldb))); talloc_free(subctx); return NT_STATUS_INTERNAL_ERROR; } talloc_free(r); if (searched_site != NULL) { ret = ldb_search(ldb, subctx, &r, configdn, LDB_SCOPE_SUBTREE, attrs_none, "(&(name=%s)(objectClass=site))", searched_site); if (ret != LDB_SUCCESS) { talloc_free(subctx); return NT_STATUS_FOOBAR; } else if (r->count != 1) { talloc_free(subctx); return NT_STATUS_FOOBAR; } /* All of this was to get the DN of the searched_site */ sitedn = r->msgs[0]->dn; set_list = talloc_realloc(subctx, set_list, struct dc_set *, current_pos+1); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(set_list, subctx); set_list[current_pos] = talloc(set_list, struct dc_set); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(set_list[current_pos], subctx); set_list[current_pos]->names = NULL; set_list[current_pos]->count = 0; status = get_dcs_insite(subctx, ldb, sitedn, set_list[current_pos], need_fqdn); if (!NT_STATUS_IS_OK(status)) { DEBUG(2,(__location__ ": Failed to get DC from site %s - %s\n", ldb_dn_get_linearized(sitedn), nt_errstr(status))); talloc_free(subctx); return status; } talloc_free(r); current_pos++; } /* Let's find all the sites */ ret = ldb_search(ldb, subctx, &r, configdn, LDB_SCOPE_SUBTREE, attrs3, "(objectClass=site)"); if (ret != LDB_SUCCESS) { DEBUG(2,(__location__ ": Failed to find any site containers in %s\n", ldb_dn_get_linearized(configdn))); talloc_free(subctx); return NT_STATUS_INTERNAL_DB_CORRUPTION; } /* * TODO: * We should randomize the order in the main site, * it's mostly needed for sysvol/netlogon referral. * Depending of flag we either randomize order of the * not "in the same site DCs" * or we randomize by group of site that have the same cost * In the long run we want to manipulate an array of site_set * All the site in one set have the same cost (if least-expansive options is selected) * and we will put all the dc related to 1 site set into 1 DCs set. * Within a site set, site order has to be randomized * * But for the moment we just return the list of sites */ if (r->count) { /* * We will realloc + 2 because we will need one additional place * for element at current_pos + 1 for the NULL element */ set_list = talloc_realloc(subctx, set_list, struct dc_set *, current_pos+2); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(set_list, subctx); set_list[current_pos] = talloc(ctx, struct dc_set); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(set_list[current_pos], subctx); set_list[current_pos]->names = NULL; set_list[current_pos]->count = 0; set_list[current_pos+1] = NULL; } for (i=0; icount; i++) { const char *site_name = ldb_msg_find_attr_as_string(r->msgs[i], "name", NULL); if (site_name == NULL) { DEBUG(2,(__location__ ": Failed to find name attribute in %s\n", ldb_dn_get_linearized(r->msgs[i]->dn))); talloc_free(subctx); return NT_STATUS_INTERNAL_DB_CORRUPTION; } if (searched_site == NULL || strcmp(searched_site, site_name) != 0) { DEBUG(2,(__location__ ": Site: %s %s\n", searched_site, site_name)); /* * Do all the site but the one of the client * (because it has already been done ...) */ dn = r->msgs[i]->dn; status = get_dcs_insite(subctx, ldb, dn, set_list[current_pos], need_fqdn); if (!NT_STATUS_IS_OK(status)) { talloc_free(subctx); return status; } } } current_pos++; set_list[current_pos] = NULL; *pset_list = talloc_move(ctx, &set_list); talloc_free(subctx); return NT_STATUS_OK; } static NTSTATUS dodomain_referral(TALLOC_CTX *ctx, const struct dfs_GetDFSReferral_in *dfsreq, struct ldb_context *ldb, struct smb_trans2 *trans, struct loadparm_context *lp_ctx) { /* * TODO for the moment we just return the local domain */ DATA_BLOB outblob; enum ndr_err_code ndr_err; NTSTATUS status; const char *dns_domain = lpcfg_dnsdomain(lp_ctx); const char *netbios_domain = lpcfg_workgroup(lp_ctx); struct dfs_referral_resp resp; struct dfs_referral_type *tab; struct dfs_referral_type *referral; const char *referral_str; /* In the future this needs to be fetched from the ldb */ uint32_t found_domain = 2; uint32_t current_pos = 0; TALLOC_CTX *context; if (lpcfg_server_role(lp_ctx) != ROLE_DOMAIN_CONTROLLER) { DEBUG(10 ,("Received a domain referral request on a non DC\n")); return NT_STATUS_INVALID_PARAMETER; } if (dfsreq->max_referral_level < 3) { DEBUG(2,("invalid max_referral_level %u\n", dfsreq->max_referral_level)); return NT_STATUS_UNSUCCESSFUL; } context = talloc_new(ctx); NT_STATUS_HAVE_NO_MEMORY(context); resp.path_consumed = 0; resp.header_flags = 0; /* Do like w2k3 */ resp.nb_referrals = found_domain; /* the fqdn one + the NT domain */ tab = talloc_array(context, struct dfs_referral_type, found_domain); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(tab, context); referral = talloc(tab, struct dfs_referral_type); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(referral, context); referral_str = talloc_asprintf(referral, "\\%s", netbios_domain); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(referral_str, context); status = fill_domain_dfs_referraltype(referral, 3, referral_str, NULL, 0); if (!NT_STATUS_IS_OK(status)) { DEBUG(2,(__location__ ":Unable to fill domain referral structure\n")); talloc_free(context); return NT_STATUS_UNSUCCESSFUL; } tab[current_pos] = *referral; current_pos++; referral = talloc(tab, struct dfs_referral_type); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(referral, context); referral_str = talloc_asprintf(referral, "\\%s", dns_domain); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(referral_str, context); status = fill_domain_dfs_referraltype(referral, 3, referral_str, NULL, 0); if (!NT_STATUS_IS_OK(status)) { DEBUG(2,(__location__ ":Unable to fill domain referral structure\n")); talloc_free(context); return NT_STATUS_UNSUCCESSFUL; } tab[current_pos] = *referral; current_pos++; /* * Put here the code from filling the array for trusted domain */ resp.referral_entries = tab; ndr_err = ndr_push_struct_blob(&outblob, context, &resp, (ndr_push_flags_fn_t)ndr_push_dfs_referral_resp); if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { DEBUG(2,(__location__ ":NDR marchalling of domain deferral response failed\n")); talloc_free(context); return NT_STATUS_INTERNAL_ERROR; } if (outblob.length > trans->in.max_data) { bool ok = false; DEBUG(3, ("Blob is too big for the output buffer " "size %u max %u\n", (unsigned int)outblob.length, trans->in.max_data)); if (trans->in.max_data != MAX_DFS_RESPONSE) { /* As specified in MS-DFSC.pdf 3.3.5.2 */ talloc_free(context); return STATUS_BUFFER_OVERFLOW; } /* * The answer is too big, so let's remove some answers */ while (!ok && resp.nb_referrals > 2) { data_blob_free(&outblob); /* * Let's scrap the first referral (for now) */ resp.nb_referrals -= 1; resp.referral_entries += 1; ndr_err = ndr_push_struct_blob(&outblob, context, &resp, (ndr_push_flags_fn_t)ndr_push_dfs_referral_resp); if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { talloc_free(context); return NT_STATUS_INTERNAL_ERROR; } if (outblob.length <= MAX_DFS_RESPONSE) { DEBUG(10,("DFS: managed to reduce the size of referral initial" "number of referral %d, actual count: %d", found_domain, resp.nb_referrals)); ok = true; break; } } if (!ok && resp.nb_referrals == 2) { DEBUG(0, (__location__ "; Not able to fit the domain and realm in DFS a " " 56K buffer, something must be broken")); talloc_free(context); return NT_STATUS_INTERNAL_ERROR; } } TRANS2_CHECK(trans2_setup_reply(trans, 0, outblob.length, 0)); trans->out.data = outblob; talloc_steal(ctx, outblob.data); talloc_free(context); return NT_STATUS_OK; } /* * Handle the logic for dfs referral request like \\domain * or \\domain\sysvol or \\fqdn or \\fqdn\netlogon */ static NTSTATUS dodc_or_sysvol_referral(TALLOC_CTX *ctx, const struct dfs_GetDFSReferral_in dfsreq, const char* requestedname, struct ldb_context *ldb, struct smb_trans2 *trans, struct smbsrv_request *req, struct loadparm_context *lp_ctx) { /* * It's not a "standard" DFS referral but a referral to get the DC list * or sysvol/netlogon * Let's check that it's for one of our domain ... */ DATA_BLOB outblob; NTSTATUS status; unsigned int num_domain = 1; enum ndr_err_code ndr_err; const char *requesteddomain; const char *realm = lpcfg_realm(lp_ctx); const char *domain = lpcfg_workgroup(lp_ctx); const char *site_name = NULL; /* Name of the site where the client is */ char *share = NULL; bool found = false; bool need_fqdn = false; bool dc_referral = true; unsigned int i; char *tmp; struct dc_set **set; char const **domain_list; struct tsocket_address *remote_address; char *client_addr = NULL; TALLOC_CTX *context; if (lpcfg_server_role(lp_ctx) != ROLE_DOMAIN_CONTROLLER) { return NT_STATUS_INVALID_PARAMETER; } if (dfsreq.max_referral_level < 3) { DEBUG(2,("invalid max_referral_level %u\n", dfsreq.max_referral_level)); return NT_STATUS_UNSUCCESSFUL; } context = talloc_new(ctx); NT_STATUS_HAVE_NO_MEMORY(context); if (requestedname[0] == '\\' && !strchr(requestedname+1,'\\')) { requestedname++; } requesteddomain = requestedname; if (strchr(requestedname,'\\')) { char *subpart; /* we have a second part */ requesteddomain = talloc_strdup(context, requestedname+1); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(requesteddomain, context); subpart = strchr(requesteddomain,'\\'); subpart[0] = '\0'; } tmp = strchr(requestedname + 1,'\\'); /* To get second \ if any */ if (tmp != NULL) { /* There was a share */ share = tmp+1; dc_referral = false; } /* * We will fetch the trusted domain list soon with something like this: * * "(&(|(flatname=%s)(cn=%s)(trustPartner=%s)(flatname=%s)(cn=%s) * (trustPartner=%s))(objectclass=trustedDomain))" * * Allocate for num_domain + 1 so that the last element will be NULL) */ domain_list = talloc_array(context, const char*, num_domain+1); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(domain_list, context); domain_list[0] = realm; domain_list[1] = domain; for (i=0; i<=num_domain; i++) { if (strncasecmp(domain_list[i], requesteddomain, strlen(domain_list[i])) == 0) { found = true; break; } } if (!found) { /* The requested domain is not one that we support */ DEBUG(3,("Requested referral for domain %s, but we don't handle it", requesteddomain)); return NT_STATUS_INVALID_PARAMETER; } if (strchr(requestedname,'.')) { need_fqdn = 1; } remote_address = req->smb_conn->connection->remote_address; if (tsocket_address_is_inet(remote_address, "ip")) { client_addr = tsocket_address_inet_addr_string(remote_address, context); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(client_addr, context); } status = get_dcs(context, ldb, site_name, need_fqdn, &set, 0); if (!NT_STATUS_IS_OK(status)) { DEBUG(3,("Unable to get list of DCs\n")); talloc_free(context); return status; } if (dc_referral) { const char **dc_list = NULL; uint32_t num_dcs = 0; struct dfs_referral_type *referral; const char *referral_str; struct dfs_referral_resp resp; for(i=0; set[i]; i++) { uint32_t j; dc_list = talloc_realloc(context, dc_list, const char*, num_dcs + set[i]->count + 1); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(dc_list, context); for(j=0; jcount; j++) { dc_list[num_dcs + j] = talloc_move(context, &set[i]->names[j]); } num_dcs = num_dcs + set[i]->count; TALLOC_FREE(set[i]); dc_list[num_dcs] = NULL; } resp.path_consumed = 0; resp.header_flags = 0; /* Do like w2k3 and like in 3.3.5.3 of MS-DFSC*/ /* * The NumberOfReferrals field MUST be set to 1, * independent of the number of DC names * returned. (as stated in 3.3.5.3 of MS-DFSC) */ resp.nb_referrals = 1; /* Put here the code from filling the array for trusted domain */ referral = talloc(context, struct dfs_referral_type); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(referral, context); referral_str = talloc_asprintf(referral, "\\%s", requestedname); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(referral_str, context); status = fill_domain_dfs_referraltype(referral, 3, referral_str, dc_list, num_dcs); if (!NT_STATUS_IS_OK(status)) { DEBUG(2,(__location__ ":Unable to fill domain referral structure\n")); talloc_free(context); return NT_STATUS_UNSUCCESSFUL; } resp.referral_entries = referral; ndr_err = ndr_push_struct_blob(&outblob, context, &resp, (ndr_push_flags_fn_t)ndr_push_dfs_referral_resp); if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { DEBUG(2,(__location__ ":NDR marshalling of dfs referral response failed\n")); talloc_free(context); return NT_STATUS_INTERNAL_ERROR; } } else { unsigned int nb_entries = 0; unsigned int current = 0; struct dfs_referral_type *tab; struct dfs_referral_resp resp; for(i=0; set[i]; i++) { nb_entries = nb_entries + set[i]->count; } resp.path_consumed = 2*strlen(requestedname); /* The length is expected in bytes */ resp.header_flags = DFS_HEADER_FLAG_STORAGE_SVR; /* Do like w2k3 and like in 3.3.5.3 of MS-DFSC*/ /* * The NumberOfReferrals field MUST be set to 1, * independent of the number of DC names * returned. (as stated in 3.3.5.3 of MS-DFSC) */ resp.nb_referrals = nb_entries; tab = talloc_array(context, struct dfs_referral_type, nb_entries); NT_STATUS_HAVE_NO_MEMORY(tab); for(i=0; set[i]; i++) { uint32_t j; for(j=0; j< set[i]->count; j++) { struct dfs_referral_type *referral; const char *referral_str; referral = talloc(tab, struct dfs_referral_type); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(referral, context); referral_str = talloc_asprintf(referral, "\\%s\\%s", set[i]->names[j], share); NT_STATUS_HAVE_NO_MEMORY_AND_FREE(referral_str, context); status = fill_normal_dfs_referraltype(referral, dfsreq.max_referral_level, requestedname, referral_str, j==0); if (!NT_STATUS_IS_OK(status)) { DEBUG(2, (__location__ ": Unable to fill a normal dfs referral object")); talloc_free(context); return NT_STATUS_UNSUCCESSFUL; } tab[current] = *referral; current++; } } resp.referral_entries = tab; ndr_err = ndr_push_struct_blob(&outblob, context, &resp, (ndr_push_flags_fn_t)ndr_push_dfs_referral_resp); if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { DEBUG(2,(__location__ ":NDR marchalling of domain deferral response failed\n")); talloc_free(context); return NT_STATUS_INTERNAL_ERROR; } } TRANS2_CHECK(trans2_setup_reply(trans, 0, outblob.length, 0)); /* * TODO If the size is too big we should remove * some DC from the answer or return STATUS_BUFFER_OVERFLOW */ trans->out.data = outblob; talloc_steal(ctx, outblob.data); talloc_free(context); return NT_STATUS_OK; } /* trans2 getdfsreferral implementation */ static NTSTATUS trans2_getdfsreferral(struct smbsrv_request *req, struct trans_op *op) { enum ndr_err_code ndr_err; struct smb_trans2 *trans = op->trans; struct dfs_GetDFSReferral_in dfsreq; TALLOC_CTX *context; struct ldb_context *ldb; struct loadparm_context *lp_ctx; const char *realm, *nbname, *requestedname; char *fqdn, *tmp; NTSTATUS status; lp_ctx = req->tcon->ntvfs->lp_ctx; if (!lpcfg_host_msdfs(lp_ctx)) { return NT_STATUS_NOT_IMPLEMENTED; } context = talloc_new(req); NT_STATUS_HAVE_NO_MEMORY(context); ldb = samdb_connect(context, req->tcon->ntvfs->event_ctx, lp_ctx, system_session(lp_ctx), 0); if (ldb == NULL) { DEBUG(2,(__location__ ": Failed to open samdb\n")); talloc_free(context); return NT_STATUS_INTERNAL_ERROR; } ndr_err = ndr_pull_struct_blob(&trans->in.params, op, &dfsreq, (ndr_pull_flags_fn_t)ndr_pull_dfs_GetDFSReferral_in); if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { status = ndr_map_error2ntstatus(ndr_err); DEBUG(2,(__location__ ": Failed to parse GetDFSReferral_in - %s\n", nt_errstr(status))); talloc_free(context); return status; } DEBUG(10, ("Requested DFS name: %s length: %u\n", dfsreq.servername, (unsigned int)strlen(dfsreq.servername))); /* * If the servername is "" then we are in a case of domain dfs * and the client just searches for the list of local domain * it is attached and also trusted ones. */ requestedname = dfsreq.servername; if (requestedname == NULL || requestedname[0] == '\0') { return dodomain_referral(op, &dfsreq, ldb, trans, lp_ctx); } realm = lpcfg_realm(lp_ctx); nbname = lpcfg_netbios_name(lp_ctx); fqdn = talloc_asprintf(context, "%s.%s", nbname, realm); if ((strncasecmp(requestedname+1, nbname, strlen(nbname)) == 0) || (strncasecmp(requestedname+1, fqdn, strlen(fqdn)) == 0) ) { /* * the referral request starts with \NETBIOSNAME or \fqdn * it's a standalone referral we do not do it * (TODO correct this) * If a DFS link that is a complete prefix of the DFS referral * request path is identified, the server MUST return a DFS link * referral response; otherwise, if it has a match for the DFS root, * it MUST return a root referral response. */ DEBUG(3, ("Received a standalone request for %s, we do not support standalone referral yet",requestedname)); talloc_free(context); return NT_STATUS_NOT_FOUND; } talloc_free(fqdn); tmp = strchr(requestedname + 1,'\\'); /* To get second \ if any */ /* * If we have no slash at the first position or (foo.bar.domain.net) * a slash at the first position but no other slash (\foo.bar.domain.net) * or a slash at the first position and another slash * and netlogon or sysvol after the second slash * (\foo.bar.domain.net\sysvol) then we will handle it because * it's either a dc referral or a sysvol/netlogon referral */ if (requestedname[0] != '\\' || tmp == NULL || strcasecmp(tmp+1, "sysvol") == 0 || strcasecmp(tmp+1, "netlogon") == 0) { status = dodc_or_sysvol_referral(op, dfsreq, requestedname, ldb, trans, req, lp_ctx); talloc_free(context); return status; } if (requestedname[0] == '\\' && tmp && strchr(tmp+1, '\\') && (strncasecmp(tmp+1, "sysvol", 6) == 0 || strncasecmp(tmp+1, "netlogon", 8) == 0)) { /* * We have more than two \ so it something like * \domain\sysvol\foobar */ talloc_free(context); return NT_STATUS_NOT_FOUND; } talloc_free(context); /* By default until all the case are handled*/ return NT_STATUS_NOT_FOUND; } /* trans2 findfirst implementation */ static NTSTATUS trans2_findfirst(struct smbsrv_request *req, struct trans_op *op) { struct smb_trans2 *trans = op->trans; union smb_search_first *search; uint16_t level; struct find_state *state; /* make sure we got all the parameters */ if (trans->in.params.length < 14) { return NT_STATUS_FOOBAR; } search = talloc(op, union smb_search_first); NT_STATUS_HAVE_NO_MEMORY(search); search->t2ffirst.in.search_attrib = SVAL(trans->in.params.data, 0); search->t2ffirst.in.max_count = SVAL(trans->in.params.data, 2); search->t2ffirst.in.flags = SVAL(trans->in.params.data, 4); level = SVAL(trans->in.params.data, 6); search->t2ffirst.in.storage_type = IVAL(trans->in.params.data, 8); smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 12, &search->t2ffirst.in.pattern, 0); if (search->t2ffirst.in.pattern == NULL) { return NT_STATUS_FOOBAR; } search->t2ffirst.level = RAW_SEARCH_TRANS2; search->t2ffirst.data_level = (enum smb_search_data_level)level; if (search->t2ffirst.data_level >= RAW_SEARCH_DATA_GENERIC) { return NT_STATUS_INVALID_LEVEL; } if (search->t2ffirst.data_level == RAW_SEARCH_DATA_EA_LIST) { TRANS2_CHECK(ea_pull_name_list(&trans->in.data, req, &search->t2ffirst.in.num_names, &search->t2ffirst.in.ea_names)); } /* setup the private state structure that the backend will give us in the callback */ state = talloc(op, struct find_state); NT_STATUS_HAVE_NO_MEMORY(state); state->op = op; state->search = search; state->data_level = search->t2ffirst.data_level; state->last_entry_offset= 0; state->flags = search->t2ffirst.in.flags; /* setup for just a header in the reply */ TRANS2_CHECK(trans2_setup_reply(trans, 10, 0, 0)); op->op_info = state; op->send_fn = trans2_findfirst_send; return ntvfs_search_first(req->ntvfs, search, state, find_callback); } /* trans2 findnext send */ static NTSTATUS trans2_findnext_send(struct trans_op *op) { struct smbsrv_request *req = op->req; struct smb_trans2 *trans = op->trans; union smb_search_next *search; struct find_state *state; uint8_t *param; TRANS2_CHECK_ASYNC_STATUS(state, struct find_state); search = talloc_get_type(state->search, union smb_search_next); /* fill in the findfirst reply header */ param = trans->out.params.data; SSVAL(param, VWV(0), search->t2fnext.out.count); SSVAL(param, VWV(1), search->t2fnext.out.end_of_search); SSVAL(param, VWV(2), 0); SSVAL(param, VWV(3), state->last_entry_offset); return NT_STATUS_OK; } /* trans2 findnext implementation */ static NTSTATUS trans2_findnext(struct smbsrv_request *req, struct trans_op *op) { struct smb_trans2 *trans = op->trans; union smb_search_next *search; uint16_t level; struct find_state *state; /* make sure we got all the parameters */ if (trans->in.params.length < 12) { return NT_STATUS_FOOBAR; } search = talloc(op, union smb_search_next); NT_STATUS_HAVE_NO_MEMORY(search); search->t2fnext.in.handle = SVAL(trans->in.params.data, 0); search->t2fnext.in.max_count = SVAL(trans->in.params.data, 2); level = SVAL(trans->in.params.data, 4); search->t2fnext.in.resume_key = IVAL(trans->in.params.data, 6); search->t2fnext.in.flags = SVAL(trans->in.params.data, 10); smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 12, &search->t2fnext.in.last_name, 0); if (search->t2fnext.in.last_name == NULL) { return NT_STATUS_FOOBAR; } search->t2fnext.level = RAW_SEARCH_TRANS2; search->t2fnext.data_level = (enum smb_search_data_level)level; if (search->t2fnext.data_level >= RAW_SEARCH_DATA_GENERIC) { return NT_STATUS_INVALID_LEVEL; } if (search->t2fnext.data_level == RAW_SEARCH_DATA_EA_LIST) { TRANS2_CHECK(ea_pull_name_list(&trans->in.data, req, &search->t2fnext.in.num_names, &search->t2fnext.in.ea_names)); } /* setup the private state structure that the backend will give us in the callback */ state = talloc(op, struct find_state); NT_STATUS_HAVE_NO_MEMORY(state); state->op = op; state->search = search; state->data_level = search->t2fnext.data_level; state->last_entry_offset= 0; state->flags = search->t2fnext.in.flags; /* setup for just a header in the reply */ TRANS2_CHECK(trans2_setup_reply(trans, 8, 0, 0)); op->op_info = state; op->send_fn = trans2_findnext_send; return ntvfs_search_next(req->ntvfs, search, state, find_callback); } /* backend for trans2 requests */ static NTSTATUS trans2_backend(struct smbsrv_request *req, struct trans_op *op) { struct smb_trans2 *trans = op->trans; NTSTATUS status; /* direct trans2 pass thru */ status = ntvfs_trans2(req->ntvfs, trans); if (!NT_STATUS_EQUAL(NT_STATUS_NOT_IMPLEMENTED, status)) { return status; } /* must have at least one setup word */ if (trans->in.setup_count < 1) { return NT_STATUS_FOOBAR; } /* the trans2 command is in setup[0] */ switch (trans->in.setup[0]) { case TRANSACT2_GET_DFS_REFERRAL: return trans2_getdfsreferral(req, op); case TRANSACT2_FINDFIRST: return trans2_findfirst(req, op); case TRANSACT2_FINDNEXT: return trans2_findnext(req, op); case TRANSACT2_QPATHINFO: return trans2_qpathinfo(req, op); case TRANSACT2_QFILEINFO: return trans2_qfileinfo(req, op); case TRANSACT2_SETFILEINFO: return trans2_setfileinfo(req, op); case TRANSACT2_SETPATHINFO: return trans2_setpathinfo(req, op); case TRANSACT2_QFSINFO: return trans2_qfsinfo(req, op); case TRANSACT2_OPEN: return trans2_open(req, op); case TRANSACT2_MKDIR: return trans2_mkdir(req, op); } /* an unknown trans2 command */ return NT_STATUS_FOOBAR; } int smbsrv_trans_partial_destructor(struct smbsrv_trans_partial *tp) { DLIST_REMOVE(tp->req->smb_conn->trans_partial, tp); return 0; } /* send a continue request */ static void reply_trans_continue(struct smbsrv_request *req, uint8_t command, struct smb_trans2 *trans) { struct smbsrv_request *req2; struct smbsrv_trans_partial *tp; int count; /* make sure they don't flood us */ for (count=0,tp=req->smb_conn->trans_partial;tp;tp=tp->next) count++; if (count > 100) { smbsrv_send_error(req, NT_STATUS_INSUFFICIENT_RESOURCES); return; } tp = talloc(req, struct smbsrv_trans_partial); tp->req = req; tp->u.trans = trans; tp->command = command; DLIST_ADD(req->smb_conn->trans_partial, tp); talloc_set_destructor(tp, smbsrv_trans_partial_destructor); req2 = smbsrv_setup_secondary_request(req); /* send a 'please continue' reply */ smbsrv_setup_reply(req2, 0, 0); smbsrv_send_reply(req2); } /* answer a reconstructed trans request */ static void reply_trans_send(struct ntvfs_request *ntvfs) { struct smbsrv_request *req; struct trans_op *op; struct smb_trans2 *trans; uint16_t params_left, data_left; uint8_t *params, *data; int i; SMBSRV_CHECK_ASYNC_STATUS_ERR(op, struct trans_op); trans = op->trans; /* if this function needs work to form the nttrans reply buffer, then call that now */ if (op->send_fn != NULL) { NTSTATUS status; status = op->send_fn(op); if (!NT_STATUS_IS_OK(status)) { smbsrv_send_error(req, status); return; } } params_left = trans->out.params.length; data_left = trans->out.data.length; params = trans->out.params.data; data = trans->out.data.data; smbsrv_setup_reply(req, 10 + trans->out.setup_count, 0); if (!NT_STATUS_IS_OK(req->ntvfs->async_states->status)) { smbsrv_setup_error(req, req->ntvfs->async_states->status); } /* we need to divide up the reply into chunks that fit into the negotiated buffer size */ do { uint16_t this_data, this_param, max_bytes; unsigned int align1 = 1, align2 = (params_left ? 2 : 0); struct smbsrv_request *this_req; max_bytes = req_max_data(req) - (align1 + align2); this_param = params_left; if (this_param > max_bytes) { this_param = max_bytes; } max_bytes -= this_param; this_data = data_left; if (this_data > max_bytes) { this_data = max_bytes; } /* don't destroy unless this is the last chunk */ if (params_left - this_param != 0 || data_left - this_data != 0) { this_req = smbsrv_setup_secondary_request(req); } else { this_req = req; } req_grow_data(this_req, this_param + this_data + (align1 + align2)); SSVAL(this_req->out.vwv, VWV(0), trans->out.params.length); SSVAL(this_req->out.vwv, VWV(1), trans->out.data.length); SSVAL(this_req->out.vwv, VWV(2), 0); SSVAL(this_req->out.vwv, VWV(3), this_param); SSVAL(this_req->out.vwv, VWV(4), align1 + PTR_DIFF(this_req->out.data, this_req->out.hdr)); SSVAL(this_req->out.vwv, VWV(5), PTR_DIFF(params, trans->out.params.data)); SSVAL(this_req->out.vwv, VWV(6), this_data); SSVAL(this_req->out.vwv, VWV(7), align1 + align2 + PTR_DIFF(this_req->out.data + this_param, this_req->out.hdr)); SSVAL(this_req->out.vwv, VWV(8), PTR_DIFF(data, trans->out.data.data)); SCVAL(this_req->out.vwv, VWV(9), trans->out.setup_count); SCVAL(this_req->out.vwv, VWV(9)+1, 0); /* reserved */ for (i=0;iout.setup_count;i++) { SSVAL(this_req->out.vwv, VWV(10+i), trans->out.setup[i]); } memset(this_req->out.data, 0, align1); if (this_param != 0) { memcpy(this_req->out.data + align1, params, this_param); } memset(this_req->out.data+this_param+align1, 0, align2); if (this_data != 0) { memcpy(this_req->out.data+this_param+align1+align2, data, this_data); } params_left -= this_param; data_left -= this_data; params += this_param; data += this_data; smbsrv_send_reply(this_req); } while (params_left != 0 || data_left != 0); } /* answer a reconstructed trans request */ static void reply_trans_complete(struct smbsrv_request *req, uint8_t command, struct smb_trans2 *trans) { struct trans_op *op; SMBSRV_TALLOC_IO_PTR(op, struct trans_op); SMBSRV_SETUP_NTVFS_REQUEST(reply_trans_send, NTVFS_ASYNC_STATE_MAY_ASYNC); op->req = req; op->trans = trans; op->command = command; op->op_info = NULL; op->send_fn = NULL; /* its a full request, give it to the backend */ if (command == SMBtrans) { SMBSRV_CALL_NTVFS_BACKEND(ntvfs_trans(req->ntvfs, trans)); return; } else { SMBSRV_CALL_NTVFS_BACKEND(trans2_backend(req, op)); return; } } /* Reply to an SMBtrans or SMBtrans2 request */ static void reply_trans_generic(struct smbsrv_request *req, uint8_t command) { struct smb_trans2 *trans; int i; uint16_t param_ofs, data_ofs; uint16_t param_count, data_count; uint16_t param_total, data_total; /* parse request */ if (req->in.wct < 14) { smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER); return; } trans = talloc(req, struct smb_trans2); if (trans == NULL) { smbsrv_send_error(req, NT_STATUS_NO_MEMORY); return; } param_total = SVAL(req->in.vwv, VWV(0)); data_total = SVAL(req->in.vwv, VWV(1)); trans->in.max_param = SVAL(req->in.vwv, VWV(2)); trans->in.max_data = SVAL(req->in.vwv, VWV(3)); trans->in.max_setup = CVAL(req->in.vwv, VWV(4)); trans->in.flags = SVAL(req->in.vwv, VWV(5)); trans->in.timeout = IVAL(req->in.vwv, VWV(6)); param_count = SVAL(req->in.vwv, VWV(9)); param_ofs = SVAL(req->in.vwv, VWV(10)); data_count = SVAL(req->in.vwv, VWV(11)); data_ofs = SVAL(req->in.vwv, VWV(12)); trans->in.setup_count = CVAL(req->in.vwv, VWV(13)); if (req->in.wct != 14 + trans->in.setup_count) { smbsrv_send_error(req, NT_STATUS_DOS(ERRSRV, ERRerror)); return; } /* parse out the setup words */ trans->in.setup = talloc_array(trans, uint16_t, trans->in.setup_count); if (trans->in.setup_count && !trans->in.setup) { smbsrv_send_error(req, NT_STATUS_NO_MEMORY); return; } for (i=0;iin.setup_count;i++) { trans->in.setup[i] = SVAL(req->in.vwv, VWV(14+i)); } if (command == SMBtrans) { req_pull_string(&req->in.bufinfo, &trans->in.trans_name, req->in.data, -1, STR_TERMINATE); } if (!req_pull_blob(&req->in.bufinfo, req->in.hdr + param_ofs, param_count, &trans->in.params) || !req_pull_blob(&req->in.bufinfo, req->in.hdr + data_ofs, data_count, &trans->in.data)) { smbsrv_send_error(req, NT_STATUS_FOOBAR); return; } /* is it a partial request? if so, then send a 'send more' message */ if (param_total > param_count || data_total > data_count) { reply_trans_continue(req, command, trans); return; } reply_trans_complete(req, command, trans); } /* Reply to an SMBtranss2 request */ static void reply_transs_generic(struct smbsrv_request *req, uint8_t command) { struct smbsrv_trans_partial *tp; struct smb_trans2 *trans = NULL; uint16_t param_ofs, data_ofs; uint16_t param_count, data_count; uint16_t param_disp, data_disp; uint16_t param_total, data_total; DATA_BLOB params, data; uint8_t wct; if (command == SMBtrans2) { wct = 9; } else { wct = 8; } /* parse request */ if (req->in.wct != wct) { /* * TODO: add some error code tests * w2k3 returns NT_STATUS_DOS(ERRSRV, ERRerror) here */ smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER); return; } for (tp=req->smb_conn->trans_partial;tp;tp=tp->next) { if (tp->command == command && SVAL(tp->req->in.hdr, HDR_MID) == SVAL(req->in.hdr, HDR_MID)) { /* TODO: check the VUID, PID and TID too? */ break; } } if (tp == NULL) { smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER); return; } trans = tp->u.trans; param_total = SVAL(req->in.vwv, VWV(0)); data_total = SVAL(req->in.vwv, VWV(1)); param_count = SVAL(req->in.vwv, VWV(2)); param_ofs = SVAL(req->in.vwv, VWV(3)); param_disp = SVAL(req->in.vwv, VWV(4)); data_count = SVAL(req->in.vwv, VWV(5)); data_ofs = SVAL(req->in.vwv, VWV(6)); data_disp = SVAL(req->in.vwv, VWV(7)); if (!req_pull_blob(&req->in.bufinfo, req->in.hdr + param_ofs, param_count, ¶ms) || !req_pull_blob(&req->in.bufinfo, req->in.hdr + data_ofs, data_count, &data)) { smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER); return; } /* only allow contiguous requests */ if ((param_count != 0 && param_disp != trans->in.params.length) || (data_count != 0 && data_disp != trans->in.data.length)) { smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER); return; } /* add to the existing request */ if (param_count != 0) { trans->in.params.data = talloc_realloc(trans, trans->in.params.data, uint8_t, param_disp + param_count); if (trans->in.params.data == NULL) { smbsrv_send_error(tp->req, NT_STATUS_NO_MEMORY); return; } trans->in.params.length = param_disp + param_count; } if (data_count != 0) { trans->in.data.data = talloc_realloc(trans, trans->in.data.data, uint8_t, data_disp + data_count); if (trans->in.data.data == NULL) { smbsrv_send_error(tp->req, NT_STATUS_NO_MEMORY); return; } trans->in.data.length = data_disp + data_count; } memcpy(trans->in.params.data + param_disp, params.data, params.length); memcpy(trans->in.data.data + data_disp, data.data, data.length); /* the sequence number of the reply is taken from the last secondary response */ tp->req->seq_num = req->seq_num; /* we don't reply to Transs2 requests */ talloc_free(req); if (trans->in.params.length == param_total && trans->in.data.length == data_total) { /* its now complete */ req = tp->req; talloc_free(tp); reply_trans_complete(req, command, trans); } return; } /* Reply to an SMBtrans2 */ void smbsrv_reply_trans2(struct smbsrv_request *req) { reply_trans_generic(req, SMBtrans2); } /* Reply to an SMBtrans */ void smbsrv_reply_trans(struct smbsrv_request *req) { reply_trans_generic(req, SMBtrans); } /* Reply to an SMBtranss request */ void smbsrv_reply_transs(struct smbsrv_request *req) { reply_transs_generic(req, SMBtrans); } /* Reply to an SMBtranss2 request */ void smbsrv_reply_transs2(struct smbsrv_request *req) { reply_transs_generic(req, SMBtrans2); }