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libcli/smb: add smb1cli_ntcreatex*
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org> Signed-off-by: Gregor Beck <gbeck@sernet.de> Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
This commit is contained in:
Gregor Beck
Stefan Metzmacher
parent
ef28ed685f
commit
50f910ff5d
367
libcli/smb/smb1cli_create.c
Normal file
367
libcli/smb/smb1cli_create.c
Normal file
@ -0,0 +1,367 @@
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/*
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Unix SMB/CIFS implementation.
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Copyright (C) Gregor Beck 2013
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Copyright (C) Stefan Metzmacher 2013
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "system/network.h"
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#include "lib/util/tevent_ntstatus.h"
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#include "smb_common.h"
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#include "smbXcli_base.h"
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static uint8_t *internal_bytes_push_str(uint8_t *buf, bool ucs2,
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const char *str, size_t str_len,
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bool align_odd,
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size_t *pconverted_size)
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{
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TALLOC_CTX *frame = talloc_stackframe();
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size_t buflen;
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char *converted;
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size_t converted_size;
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/*
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* This check prevents us from
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* (re)alloc buf on a NULL TALLOC_CTX.
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*/
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if (buf == NULL) {
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TALLOC_FREE(frame);
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return NULL;
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}
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buflen = talloc_get_size(buf);
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if (ucs2 &&
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((align_odd && (buflen % 2 == 0)) ||
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(!align_odd && (buflen % 2 == 1)))) {
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/*
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* We're pushing into an SMB buffer, align odd
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*/
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buf = talloc_realloc(NULL, buf, uint8_t, buflen + 1);
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if (buf == NULL) {
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TALLOC_FREE(frame);
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return NULL;
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}
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buf[buflen] = '\0';
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buflen += 1;
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}
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if (!convert_string_talloc(frame, CH_UNIX,
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ucs2 ? CH_UTF16LE : CH_DOS,
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str, str_len, &converted,
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&converted_size)) {
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TALLOC_FREE(frame);
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return NULL;
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}
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buf = talloc_realloc(NULL, buf, uint8_t,
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buflen + converted_size);
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if (buf == NULL) {
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TALLOC_FREE(frame);
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return NULL;
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}
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memcpy(buf + buflen, converted, converted_size);
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TALLOC_FREE(converted);
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if (pconverted_size) {
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*pconverted_size = converted_size;
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}
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TALLOC_FREE(frame);
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return buf;
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}
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static uint8_t *smb_bytes_push_str(uint8_t *buf, bool ucs2,
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const char *str, size_t str_len,
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size_t *pconverted_size)
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{
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return internal_bytes_push_str(buf, ucs2, str, str_len,
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true, pconverted_size);
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}
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struct smb1cli_ntcreatex_state {
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uint16_t vwv[24];
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uint16_t fnum;
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};
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static void smb1cli_ntcreatex_done(struct tevent_req *subreq);
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/**
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* Send an asynchronous SMB_COM_NT_CREATE_ANDX request.
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* <a href="http://msdn.microsoft.com/en-us/library/ee442175.aspx">MS-CIFS 2.2.4.64.1</a>
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* @see smb1cli_ntcreatex_recv(), smb1cli_ntcreatex()
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*
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* @param[in] mem_ctx The memory context for the result.
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* @param[in] ev The event context to work on.
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* @param[in] conn The smb connection.
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* @param[in] timeout_msec If positiv a timeout for the request.
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* @param[in] pid The process identifier
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* @param[in] tcon The smb tree connect.
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* @param[in] session The smb session.
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* @param[in] fname The name of the file or directory to be opened or created.
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* @param[in] CreatFlags
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* @param[in] RootDirectoryFid The file id of an opened root directory fname is based on. 0 means root of the share.
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* @param[in] DesiredAccess A field of flags that indicate standard, specific, and generic access rights to be requested.
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* @param[in] AllocationSize Number of Bytes to allocate if the file is to be created or overwritten.
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* @param[in] FileAttributes <a href="http://msdn.microsoft.com/en-us/library/ee878573.aspx">Extended file attributes</a>
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* @param[in] ShareAccess A field that specifies how the file should be shared with other processes.
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* @param[in] CreateDisposition A value that represents the action to take if the file already exists or if the file is a new file and does not already exist.
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* @param[in] CreateOptions A field of flag options to use if creating a file or directory.
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* @param[in] ImpersonationLevel
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* @param[in] SecurityFlags
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*
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* @return a tevent_req or NULL
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*/
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struct tevent_req *smb1cli_ntcreatex_send(TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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struct smbXcli_conn *conn,
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uint32_t timeout_msec,
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uint32_t pid,
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struct smbXcli_tcon *tcon,
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struct smbXcli_session *session,
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const char *fname,
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uint32_t CreatFlags,
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uint32_t RootDirectoryFid,
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uint32_t DesiredAccess,
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uint64_t AllocationSize,
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uint32_t FileAttributes,
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uint32_t ShareAccess,
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uint32_t CreateDisposition,
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uint32_t CreateOptions,
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uint32_t ImpersonationLevel,
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uint8_t SecurityFlags)
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{
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struct tevent_req *req, *subreq;
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struct smb1cli_ntcreatex_state *state;
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uint8_t *bytes;
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size_t converted_len;
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req = tevent_req_create(mem_ctx, &state, struct smb1cli_ntcreatex_state);
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if (req == NULL) {
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return NULL;
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}
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SCVAL(state->vwv+0, 0, 0xFF);
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SCVAL(state->vwv+0, 1, 0);
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SSVAL(state->vwv+1, 0, 0);
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SCVAL(state->vwv+2, 0, 0);
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SIVAL(state->vwv+3, 1, CreatFlags);
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SIVAL(state->vwv+5, 1, RootDirectoryFid);
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SIVAL(state->vwv+7, 1, DesiredAccess);
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SBVAL(state->vwv+9, 1, AllocationSize);
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SIVAL(state->vwv+13, 1, FileAttributes);
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SIVAL(state->vwv+15, 1, ShareAccess);
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SIVAL(state->vwv+17, 1, CreateDisposition);
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SIVAL(state->vwv+19, 1, CreateOptions);
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SIVAL(state->vwv+21, 1, ImpersonationLevel);
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SCVAL(state->vwv+23, 1, SecurityFlags);
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bytes = talloc_array(state, uint8_t, 0);
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bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(conn),
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fname, strlen(fname)+1,
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&converted_len);
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/* sigh. this copes with broken netapp filer behaviour */
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bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(conn), "", 1, NULL);
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if (tevent_req_nomem(bytes, req)) {
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return tevent_req_post(req, ev);
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}
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SSVAL(state->vwv+2, 1, converted_len);
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subreq = smb1cli_req_send(state, ev, conn, SMBntcreateX,
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0, 0, /* *_flags */
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0, 0, /* *_flags2 */
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timeout_msec, pid, tcon, session,
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ARRAY_SIZE(state->vwv), state->vwv,
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talloc_get_size(bytes), bytes);
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if (tevent_req_nomem(subreq, req)) {
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return tevent_req_post(req, ev);
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}
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tevent_req_set_callback(subreq, smb1cli_ntcreatex_done, req);
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return req;
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}
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static void smb1cli_ntcreatex_done(struct tevent_req *subreq)
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{
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struct tevent_req *req = tevent_req_callback_data(
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subreq, struct tevent_req);
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struct smb1cli_ntcreatex_state *state = tevent_req_data(
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req, struct smb1cli_ntcreatex_state);
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struct iovec *recv_iov = NULL;
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uint8_t wct;
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uint16_t *vwv;
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NTSTATUS status;
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static const struct smb1cli_req_expected_response expected[] = {
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{
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.status = NT_STATUS_OK,
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.wct = 0x22
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},
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{
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/*
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* This is the broken version see from
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* [MS-SMB]:
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* Windows-based SMB servers send 50 (0x32) words in the extended
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* response although they set the WordCount field to 0x2A.
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*
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* And Samba does the same...
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*/
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.status = NT_STATUS_OK,
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.wct = 0x2a
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},
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{
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.status = NT_STATUS_OK,
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.wct = 0x32
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},
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};
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status = smb1cli_req_recv(subreq, state,
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&recv_iov,
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NULL, /* phdr */
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&wct,
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&vwv,
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NULL, /* pvwv_offset */
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NULL, /* num_bytes */
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NULL, /* bytes */
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NULL, /* pbytes_offset */
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NULL, /* inbuf */
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expected, ARRAY_SIZE(expected));
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TALLOC_FREE(subreq);
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if (tevent_req_nterror(req, status)) {
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return;
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}
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state->fnum = SVAL(vwv+2, 1);
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tevent_req_done(req);
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}
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/**
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* Receive the response to an asynchronous SMB_COM_NT_CREATE_ANDX request.
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* <a href="http://msdn.microsoft.com/en-us/library/ee441612.aspx">MS-CIFS 2.2.4.64.2</a>
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*
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* @param[in] req A tevent request created with smb1cli_ntcreatex_send()
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* @param[out] pfnum The file id of the opened file or directory.
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*
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* @return NT_STATUS_OK on succsess
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*/
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NTSTATUS smb1cli_ntcreatex_recv(struct tevent_req *req, uint16_t *pfnum)
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{
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struct smb1cli_ntcreatex_state *state = tevent_req_data(
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req, struct smb1cli_ntcreatex_state);
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NTSTATUS status;
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if (tevent_req_is_nterror(req, &status)) {
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tevent_req_received(req);
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return status;
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}
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*pfnum = state->fnum;
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tevent_req_received(req);
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return NT_STATUS_OK;
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}
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/**
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* Send a synchronous SMB_COM_NT_CREATE_ANDX request.
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* <a href="http://msdn.microsoft.com/en-us/library/ee442091.aspx">MS-CIFS 2.2.4.64</a>
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* @see smb1cli_ntcreatex_send() smb1cli_ntcreatex_recv()
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*
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* @param[in] conn The smb connection.
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* @param[in] timeout_msec If positiv a timeout for the request.
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* @param[in] pid The process identifier
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* @param[in] tcon The smb tree connect.
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* @param[in] session The smb session.
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* @param[in] fname The name of the file or directory to be opened or created.
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* @param[in] CreatFlags
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* @param[in] RootDirectoryFid The file id of an opened root directory fname is based on. 0 means root of the share.
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* @param[in] DesiredAccess A field of flags that indicate standard, specific, and generic access rights to be requested.
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* @param[in] AllocationSize Number of Bytes to allocate if the file is to be created or overwritten.
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* @param[in] FileAttributes <a href="http://msdn.microsoft.com/en-us/library/ee878573.aspx">Extended file attributes</a>
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* @param[in] ShareAccess A field that specifies how the file should be shared with other processes.
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* @param[in] CreateDisposition A value that represents the action to take if the file already exists or if the file is a new file and does not already exist.
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* @param[in] CreateOptions A field of flag options to use if creating a file or directory.
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* @param[in] ImpersonationLevel
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* @param[in] SecurityFlags
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* @param[out] pfnum The file id representing the file or directory created or opened.
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*
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* @return NT_STATUS_OK on succsess
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*/
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NTSTATUS smb1cli_ntcreatex(struct smbXcli_conn *conn,
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uint32_t timeout_msec,
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uint32_t pid,
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struct smbXcli_tcon *tcon,
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struct smbXcli_session *session,
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const char *fname,
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uint32_t CreatFlags,
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uint32_t RootDirectoryFid,
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uint32_t DesiredAccess,
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uint64_t AllocationSize,
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uint32_t FileAttributes,
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uint32_t ShareAccess,
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uint32_t CreateDisposition,
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uint32_t CreateOptions,
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uint32_t ImpersonationLevel,
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uint8_t SecurityFlags,
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uint16_t *pfnum)
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{
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TALLOC_CTX *frame = NULL;
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struct tevent_context *ev;
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struct tevent_req *req;
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NTSTATUS status = NT_STATUS_OK;
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frame = talloc_stackframe();
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if (smbXcli_conn_has_async_calls(conn)) {
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/*
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* Can't use sync call while an async call is in flight
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*/
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status = NT_STATUS_INVALID_PARAMETER;
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goto fail;
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}
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ev = samba_tevent_context_init(frame);
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if (ev == NULL) {
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status = NT_STATUS_NO_MEMORY;
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goto fail;
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}
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req = smb1cli_ntcreatex_send(frame, ev, conn,
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timeout_msec,
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pid, tcon, session,
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fname, CreatFlags, RootDirectoryFid,
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DesiredAccess, AllocationSize,
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FileAttributes, ShareAccess,
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CreateDisposition, CreateOptions,
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ImpersonationLevel, SecurityFlags);
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if (req == NULL) {
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status = NT_STATUS_NO_MEMORY;
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goto fail;
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}
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if (!tevent_req_poll_ntstatus(req, ev, &status)) {
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goto fail;
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}
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status = smb1cli_ntcreatex_recv(req, pfnum);
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fail:
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TALLOC_FREE(frame);
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return status;
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}
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@ -201,6 +201,43 @@ NTSTATUS smb1cli_echo_recv(struct tevent_req *req);
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NTSTATUS smb1cli_echo(struct smbXcli_conn *conn, uint32_t timeout_msec,
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uint16_t num_echos, DATA_BLOB data);
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struct tevent_req *smb1cli_ntcreatex_send(TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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struct smbXcli_conn *conn,
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uint32_t timeout_msec,
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uint32_t pid,
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struct smbXcli_tcon *tcon,
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struct smbXcli_session *session,
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const char *fname,
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uint32_t CreatFlags,
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uint32_t RootDirectoryFid,
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uint32_t DesiredAccess,
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uint64_t AllocationSize,
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uint32_t FileAttributes,
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uint32_t ShareAccess,
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uint32_t CreateDisposition,
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uint32_t CreateOptions,
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uint32_t ImpersonationLevel,
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uint8_t SecurityFlags);
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NTSTATUS smb1cli_ntcreatex_recv(struct tevent_req *req, uint16_t *pfnum);
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NTSTATUS smb1cli_ntcreatex(struct smbXcli_conn *conn,
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uint32_t timeout_msec,
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uint32_t pid,
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struct smbXcli_tcon *tcon,
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struct smbXcli_session *session,
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const char *fname,
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uint32_t CreatFlags,
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uint32_t RootDirectoryFid,
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uint32_t DesiredAccess,
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uint64_t AllocationSize,
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uint32_t FileAttributes,
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uint32_t ShareAccess,
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uint32_t CreateDisposition,
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uint32_t CreateOptions,
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uint32_t ImpersonationLevel,
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uint8_t SecurityFlags,
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uint16_t *pfnum);
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bool smb2cli_conn_req_possible(struct smbXcli_conn *conn, uint32_t *max_dyn_len);
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uint32_t smb2cli_conn_server_capabilities(struct smbXcli_conn *conn);
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uint16_t smb2cli_conn_server_security_mode(struct smbXcli_conn *conn);
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@ -23,6 +23,7 @@ def build(bld):
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smbXcli_base.c
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smb1cli_trans.c
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smb1cli_echo.c
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smb1cli_create.c
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smb2cli_session.c
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smb2cli_create.c
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smb2cli_close.c
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