/* Unix SMB/CIFS implementation. SMB2 client ioctl call Copyright (C) Andrew Tridgell 2005 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 . */ #include "includes.h" #include "libcli/smb2/smb2.h" #include "libcli/smb2/smb2_calls.h" #include "librpc/gen_ndr/ioctl.h" /* send a ioctl request */ struct smb2_request *smb2_ioctl_send(struct smb2_tree *tree, struct smb2_ioctl *io) { NTSTATUS status; struct smb2_request *req; req = smb2_request_init_tree(tree, SMB2_OP_IOCTL, 0x38, true, io->in.in.length+io->in.out.length); if (req == NULL) return NULL; SSVAL(req->out.body, 0x02, 0); /* pad */ SIVAL(req->out.body, 0x04, io->in.function); smb2_push_handle(req->out.body+0x08, &io->in.file.handle); status = smb2_push_o32s32_blob(&req->out, 0x18, io->in.out); if (!NT_STATUS_IS_OK(status)) { talloc_free(req); return NULL; } SIVAL(req->out.body, 0x20, io->in.unknown2); status = smb2_push_o32s32_blob(&req->out, 0x24, io->in.in); if (!NT_STATUS_IS_OK(status)) { talloc_free(req); return NULL; } SIVAL(req->out.body, 0x2C, io->in.max_response_size); SBVAL(req->out.body, 0x30, io->in.flags); smb2_transport_send(req); return req; } /* * 3.3.4.4 Sending an Error Response */ static bool smb2_ioctl_is_failure(uint32_t ctl_code, NTSTATUS status, size_t data_size) { if (NT_STATUS_IS_OK(status)) { return false; } if (NT_STATUS_EQUAL(status, STATUS_BUFFER_OVERFLOW) && ((ctl_code == FSCTL_PIPE_TRANSCEIVE) || (ctl_code == FSCTL_PIPE_PEEK) || (ctl_code == FSCTL_DFS_GET_REFERRALS))) { return false; } if (((ctl_code == FSCTL_SRV_COPYCHUNK) || (ctl_code == FSCTL_SRV_COPYCHUNK_WRITE)) && (data_size == sizeof(struct srv_copychunk_rsp))) { /* * copychunk responses may come with copychunk data or error * response data, independent of status. */ return false; } return true; } /* recv a ioctl reply */ NTSTATUS smb2_ioctl_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx, struct smb2_ioctl *io) { NTSTATUS status; if (!smb2_request_receive(req) || smb2_ioctl_is_failure(io->in.function, req->status, req->in.bufinfo.data_size)) { return smb2_request_destroy(req); } SMB2_CHECK_PACKET_RECV(req, 0x30, true); io->out._pad = SVAL(req->in.body, 0x02); io->out.function = IVAL(req->in.body, 0x04); smb2_pull_handle(req->in.body+0x08, &io->out.file.handle); status = smb2_pull_o32s32_blob(&req->in, mem_ctx, req->in.body+0x18, &io->out.in); if (!NT_STATUS_IS_OK(status)) { smb2_request_destroy(req); return status; } status = smb2_pull_o32s32_blob(&req->in, mem_ctx, req->in.body+0x20, &io->out.out); if (!NT_STATUS_IS_OK(status)) { smb2_request_destroy(req); return status; } io->out.unknown2 = IVAL(req->in.body, 0x28); io->out.unknown3 = IVAL(req->in.body, 0x2C); return smb2_request_destroy(req); } /* sync ioctl request */ NTSTATUS smb2_ioctl(struct smb2_tree *tree, TALLOC_CTX *mem_ctx, struct smb2_ioctl *io) { struct smb2_request *req = smb2_ioctl_send(tree, io); return smb2_ioctl_recv(req, mem_ctx, io); }