a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross/*
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross * This file and its contents are supplied under the terms of the
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross * Common Development and Distribution License ("CDDL"), version 1.0.
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross * You may only use this file in accordance with the terms of version
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross * 1.0 of the CDDL.
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross *
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross * A full copy of the text of the CDDL should have accompanied this
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross * source. A copy of the CDDL is also available via the Internet at
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross * http://www.illumos.org/license/CDDL.
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross/*
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross * Copyright 2014 Nexenta Systems, Inc. All rights reserved.
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross/*
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross * Dispatch function for SMB2_WRITE
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross#include <smbsrv/smb2_kproto.h>
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross#include <smbsrv/smb_fsops.h>
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Rosssmb_sdrc_t
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Rosssmb2_write(smb_request_t *sr)
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross{
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross smb_ofile_t *of = NULL;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross smb_vdb_t *vdb = NULL;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross uint16_t StructSize;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross uint16_t DataOff;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross uint32_t Length;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross uint64_t Offset;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross smb2fid_t smb2fid;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross uint32_t Channel;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross uint32_t Remaining;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross uint16_t ChanInfoOffset;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross uint16_t ChanInfoLength;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross uint32_t Flags;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross uint32_t XferCount;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross uint32_t status;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross int data_chain_off, skip;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross int stability = 0;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross int rc = 0;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross /*
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross * SMB2 Write request
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross rc = smb_mbc_decodef(
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross &sr->smb_data,
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross "wwlqqqllwwl",
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross &StructSize, /* w */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross &DataOff, /* w */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross &Length, /* l */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross &Offset, /* q */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross &smb2fid.persistent, /* q */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross &smb2fid.temporal, /* q */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross &Channel, /* l */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross &Remaining, /* l */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross &ChanInfoOffset, /* w */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross &ChanInfoLength, /* w */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross &Flags); /* l */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (rc)
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross return (SDRC_ERROR);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (StructSize != 49)
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross return (SDRC_ERROR);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross status = smb2sr_lookup_fid(sr, &smb2fid);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (status) {
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross smb2sr_put_error(sr, status);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross return (SDRC_SUCCESS);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross }
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross of = sr->fid_ofile;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (Length > smb2_max_rwsize) {
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross smb2sr_put_error(sr, NT_STATUS_INVALID_PARAMETER);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross return (SDRC_SUCCESS);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross }
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross /*
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross * Skip any padding before the write data.
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross data_chain_off = sr->smb2_cmd_hdr + DataOff;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross skip = data_chain_off - sr->smb_data.chain_offset;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (skip < 0) {
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross smb2sr_put_error(sr, NT_STATUS_INVALID_PARAMETER);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross return (SDRC_SUCCESS);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross }
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (skip > 0) {
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross (void) smb_mbc_decodef(&sr->smb_data, "#.", skip);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross }
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross /* This is automatically free'd. */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross vdb = smb_srm_zalloc(sr, sizeof (*vdb));
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross rc = smb_mbc_decodef(&sr->smb_data, "#B", Length, vdb);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (rc != 0 || vdb->vdb_len != Length) {
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross smb2sr_put_error(sr, NT_STATUS_INVALID_PARAMETER);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross return (SDRC_SUCCESS);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross }
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross vdb->vdb_uio.uio_loffset = (offset_t)Offset;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross XferCount = 0;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (Length == 0)
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross goto doreply;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross switch (of->f_tree->t_res_type & STYPE_MASK) {
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross case STYPE_DISKTREE:
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross case STYPE_PRINTQ:
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (!smb_node_is_dir(of->f_node)) {
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross /* Check for conflicting locks. */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross rc = smb_lock_range_access(sr, of->f_node,
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross Offset, Length, B_TRUE);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (rc) {
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross rc = ERANGE;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross break;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross }
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross }
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if ((Flags & SMB2_WRITEFLAG_WRITE_THROUGH) ||
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross (of->f_node->flags & NODE_FLAGS_WRITE_THROUGH)) {
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross stability = FSYNC;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross }
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross rc = smb_fsop_write(sr, of->f_cr, of->f_node,
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross &vdb->vdb_uio, &XferCount, stability);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (rc)
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross break;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross of->f_written = B_TRUE;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (!smb_node_is_dir(of->f_node))
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross smb_oplock_break_levelII(of->f_node);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross break;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross case STYPE_IPC:
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross rc = smb_opipe_write(sr, &vdb->vdb_uio);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (rc == 0)
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross XferCount = Length;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross break;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross default:
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross rc = EACCES;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross break;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross }
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (rc) {
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross smb2sr_put_errno(sr, rc);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross return (SDRC_SUCCESS);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross }
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross /*
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross * SMB2 Write reply
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Rossdoreply:
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross DataOff = SMB2_HDR_SIZE + 16;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross rc = smb_mbc_encodef(
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross &sr->reply, "wwlll",
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross 17, /* StructSize */ /* w */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross 0, /* reserved */ /* w */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross XferCount, /* l */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross 0, /* DataRemaining */ /* l */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross 0); /* Channel Info */ /* l */
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross if (rc)
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross return (SDRC_ERROR);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross mutex_enter(&of->f_mutex);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross of->f_seek_pos = Offset + XferCount;
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross mutex_exit(&of->f_mutex);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross return (SDRC_SUCCESS);
a90cf9f29973990687fa61de9f1f6ea22e924e40Gordon Ross}