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/* Unix SMB/CIFS implementation. Core SMB2 server Copyright (C) Stefan Metzmacher 2009 Copyright (C) Jeremy Allison 2010 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 <http://www.gnu.org/licenses/>. */ #include "includes.h" #include "smbd/smbd.h" #include "smbd/globals.h" #include "../libcli/smb/smb_common.h" #include "trans2.h" #include "../lib/util/tevent_ntstatus.h" static struct tevent_req *smbd_smb2_setinfo_send(TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct smbd_smb2_request *smb2req, uint8_t in_info_type, uint8_t in_file_info_class, DATA_BLOB in_input_buffer, uint32_t in_additional_information, uint64_t in_file_id_volatile); static NTSTATUS smbd_smb2_setinfo_recv(struct tevent_req *req); static void smbd_smb2_request_setinfo_done(struct tevent_req *subreq); NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req) { const uint8_t *inhdr; const uint8_t *inbody; int i = req->current_idx; size_t expected_body_size = 0x21; size_t body_size; uint8_t in_info_type; uint8_t in_file_info_class; uint16_t in_input_buffer_offset; uint32_t in_input_buffer_length; DATA_BLOB in_input_buffer; uint32_t in_additional_information; uint64_t in_file_id_persistent; uint64_t in_file_id_volatile; struct tevent_req *subreq; inhdr = (const uint8_t *)req->in.vector[i+0].iov_base; if (req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) { return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER); } inbody = (const uint8_t *)req->in.vector[i+1].iov_base; body_size = SVAL(inbody, 0x00); if (body_size != expected_body_size) { return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER); } in_info_type = CVAL(inbody, 0x02); in_file_info_class = CVAL(inbody, 0x03); in_input_buffer_length = IVAL(inbody, 0x04); in_input_buffer_offset = SVAL(inbody, 0x08); /* 0x0A 2 bytes reserved */ in_additional_information = IVAL(inbody, 0x0C); in_file_id_persistent = BVAL(inbody, 0x10); in_file_id_volatile = BVAL(inbody, 0x18); if (in_input_buffer_offset == 0 && in_input_buffer_length == 0) { /* This is ok */ } else if (in_input_buffer_offset != (SMB2_HDR_BODY + (body_size & 0xFFFFFFFE))) { return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER); } if (in_input_buffer_length > req->in.vector[i+2].iov_len) { return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER); } in_input_buffer.data = (uint8_t *)req->in.vector[i+2].iov_base; in_input_buffer.length = in_input_buffer_length; if (req->compat_chain_fsp) { /* skip check */ } else if (in_file_id_persistent != in_file_id_volatile) { return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED); } subreq = smbd_smb2_setinfo_send(req, req->sconn->smb2.event_ctx, req, in_info_type, in_file_info_class, in_input_buffer, in_additional_information, in_file_id_volatile); if (subreq == NULL) { return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY); } tevent_req_set_callback(subreq, smbd_smb2_request_setinfo_done, req); return smbd_smb2_request_pending_queue(req, subreq); } static void smbd_smb2_request_setinfo_done(struct tevent_req *subreq) { struct smbd_smb2_request *req = tevent_req_callback_data(subreq, struct smbd_smb2_request); DATA_BLOB outbody; NTSTATUS status; NTSTATUS error; /* transport error */ status = smbd_smb2_setinfo_recv(subreq); TALLOC_FREE(subreq); if (!NT_STATUS_IS_OK(status)) { error = smbd_smb2_request_error(req, status); if (!NT_STATUS_IS_OK(error)) { smbd_server_connection_terminate(req->sconn, nt_errstr(error)); return; } return; } outbody = data_blob_talloc(req->out.vector, NULL, 0x02); if (outbody.data == NULL) { error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY); if (!NT_STATUS_IS_OK(error)) { smbd_server_connection_terminate(req->sconn, nt_errstr(error)); return; } return; } SSVAL(outbody.data, 0x00, 0x02); /* struct size */ error = smbd_smb2_request_done(req, outbody, NULL); if (!NT_STATUS_IS_OK(error)) { smbd_server_connection_terminate(req->sconn, nt_errstr(error)); return; } } struct smbd_smb2_setinfo_state { struct smbd_smb2_request *smb2req; }; static struct tevent_req *smbd_smb2_setinfo_send(TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct smbd_smb2_request *smb2req, uint8_t in_info_type, uint8_t in_file_info_class, DATA_BLOB in_input_buffer, uint32_t in_additional_information, uint64_t in_file_id_volatile) { struct tevent_req *req = NULL; struct smbd_smb2_setinfo_state *state = NULL; struct smb_request *smbreq = NULL; connection_struct *conn = smb2req->tcon->compat_conn; files_struct *fsp = NULL; NTSTATUS status; req = tevent_req_create(mem_ctx, &state, struct smbd_smb2_setinfo_state); if (req == NULL) { return NULL; } state->smb2req = smb2req; DEBUG(10,("smbd_smb2_setinfo_send: file_id[0x%016llX]\n", (unsigned long long)in_file_id_volatile)); smbreq = smbd_smb2_fake_smb_request(smb2req); if (tevent_req_nomem(smbreq, req)) { return tevent_req_post(req, ev); } fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile); if (fsp == NULL) { tevent_req_nterror(req, NT_STATUS_FILE_CLOSED); return tevent_req_post(req, ev); } if (conn != fsp->conn) { tevent_req_nterror(req, NT_STATUS_FILE_CLOSED); return tevent_req_post(req, ev); } if (smb2req->session->vuid != fsp->vuid) { tevent_req_nterror(req, NT_STATUS_FILE_CLOSED); return tevent_req_post(req, ev); } if (IS_IPC(conn)) { tevent_req_nterror(req, NT_STATUS_NOT_SUPPORTED); return tevent_req_post(req, ev); } switch (in_info_type) { case 0x01:/* SMB2_SETINFO_FILE */ { uint16_t file_info_level; char *data; int data_size; int ret_size = 0; file_info_level = in_file_info_class + 1000; if (file_info_level == SMB_FILE_RENAME_INFORMATION) { /* SMB2_FILE_RENAME_INFORMATION_INTERNAL == 0xFF00 + in_file_info_class */ file_info_level = SMB2_FILE_RENAME_INFORMATION_INTERNAL; if (fsp->oplock_type != FAKE_LEVEL_II_OPLOCK && fsp->oplock_type != NO_OPLOCK) { /* No break, but error. */ tevent_req_nterror(req, NT_STATUS_SHARING_VIOLATION); return tevent_req_post(req, ev); } } if (fsp->fh->fd == -1) { /* * This is actually a SETFILEINFO on a directory * handle (returned from an NT SMB). NT5.0 seems * to do this call. JRA. */ if (INFO_LEVEL_IS_UNIX(file_info_level)) { /* Always do lstat for UNIX calls. */ if (SMB_VFS_LSTAT(conn, fsp->fsp_name)) { DEBUG(3,("smbd_smb2_setinfo_send: " "SMB_VFS_LSTAT of %s failed " "(%s)\n", fsp_str_dbg(fsp), strerror(errno))); status = map_nt_error_from_unix(errno); tevent_req_nterror(req, status); return tevent_req_post(req, ev); } } else { if (SMB_VFS_STAT(conn, fsp->fsp_name) != 0) { DEBUG(3,("smbd_smb2_setinfo_send: " "fileinfo of %s failed (%s)\n", fsp_str_dbg(fsp), strerror(errno))); status = map_nt_error_from_unix(errno); tevent_req_nterror(req, status); return tevent_req_post(req, ev); } }


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