libcli/smb: add smb1cli_ntcreatex*
authorGregor Beck <gbeck@sernet.de>
Tue, 10 Sep 2013 08:43:35 +0000 (10:43 +0200)
committerStefan Metzmacher <metze@samba.org>
Tue, 7 Jan 2014 07:37:39 +0000 (08:37 +0100)
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>
libcli/smb/smb1cli_create.c [new file with mode: 0644]
libcli/smb/smbXcli_base.h
libcli/smb/wscript

diff --git a/libcli/smb/smb1cli_create.c b/libcli/smb/smb1cli_create.c
new file mode 100644 (file)
index 0000000..1963aed
--- /dev/null
@@ -0,0 +1,367 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Copyright (C) Gregor Beck 2013
+   Copyright (C) Stefan Metzmacher 2013
+
+   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 "system/network.h"
+#include "lib/util/tevent_ntstatus.h"
+#include "smb_common.h"
+#include "smbXcli_base.h"
+
+static uint8_t *internal_bytes_push_str(uint8_t *buf, bool ucs2,
+                                       const char *str, size_t str_len,
+                                       bool align_odd,
+                                       size_t *pconverted_size)
+{
+       TALLOC_CTX *frame = talloc_stackframe();
+       size_t buflen;
+       char *converted;
+       size_t converted_size;
+
+       /*
+        * This check prevents us from
+        * (re)alloc buf on a NULL TALLOC_CTX.
+        */
+       if (buf == NULL) {
+               TALLOC_FREE(frame);
+               return NULL;
+       }
+
+       buflen = talloc_get_size(buf);
+
+       if (ucs2 &&
+           ((align_odd && (buflen % 2 == 0)) ||
+            (!align_odd && (buflen % 2 == 1)))) {
+               /*
+                * We're pushing into an SMB buffer, align odd
+                */
+               buf = talloc_realloc(NULL, buf, uint8_t, buflen + 1);
+               if (buf == NULL) {
+                       TALLOC_FREE(frame);
+                       return NULL;
+               }
+               buf[buflen] = '\0';
+               buflen += 1;
+       }
+
+       if (!convert_string_talloc(frame, CH_UNIX,
+                                  ucs2 ? CH_UTF16LE : CH_DOS,
+                                  str, str_len, &converted,
+                                  &converted_size)) {
+               TALLOC_FREE(frame);
+               return NULL;
+       }
+
+       buf = talloc_realloc(NULL, buf, uint8_t,
+                            buflen + converted_size);
+       if (buf == NULL) {
+               TALLOC_FREE(frame);
+               return NULL;
+       }
+
+       memcpy(buf + buflen, converted, converted_size);
+
+       TALLOC_FREE(converted);
+
+       if (pconverted_size) {
+               *pconverted_size = converted_size;
+       }
+
+       TALLOC_FREE(frame);
+       return buf;
+}
+
+static uint8_t *smb_bytes_push_str(uint8_t *buf, bool ucs2,
+                                  const char *str, size_t str_len,
+                                  size_t *pconverted_size)
+{
+       return internal_bytes_push_str(buf, ucs2, str, str_len,
+                                      true, pconverted_size);
+}
+
+struct smb1cli_ntcreatex_state {
+       uint16_t vwv[24];
+       uint16_t fnum;
+};
+
+static void smb1cli_ntcreatex_done(struct tevent_req *subreq);
+
+/**
+ * Send an asynchronous SMB_COM_NT_CREATE_ANDX request.
+ * <a href="http://msdn.microsoft.com/en-us/library/ee442175.aspx">MS-CIFS 2.2.4.64.1</a>
+ * @see smb1cli_ntcreatex_recv(), smb1cli_ntcreatex()
+ *
+ * @param[in] mem_ctx The memory context for the result.
+ * @param[in] ev The event context to work on.
+ * @param[in] conn The smb connection.
+ * @param[in] timeout_msec If positiv a timeout for the request.
+ * @param[in] pid The process identifier
+ * @param[in] tcon The smb tree connect.
+ * @param[in] session The smb session.
+ * @param[in] fname The name of the file or directory to be opened or created.
+ * @param[in] CreatFlags
+ * @param[in] RootDirectoryFid The file id of an opened root directory fname is based on. 0 means root of the share.
+ * @param[in] DesiredAccess A field of flags that indicate standard, specific, and generic access rights to be requested.
+ * @param[in] AllocationSize Number of Bytes to allocate if the file is to be created or overwritten.
+ * @param[in] FileAttributes <a href="http://msdn.microsoft.com/en-us/library/ee878573.aspx">Extended file attributes</a>
+ * @param[in] ShareAccess A field that specifies how the file should be shared with other processes.
+ * @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.
+ * @param[in] CreateOptions  A field of flag options to use if creating a file or directory.
+ * @param[in] ImpersonationLevel
+ * @param[in] SecurityFlags
+ *
+ * @return a tevent_req or NULL
+ */
+struct tevent_req *smb1cli_ntcreatex_send(TALLOC_CTX *mem_ctx,
+                                         struct tevent_context *ev,
+                                         struct smbXcli_conn *conn,
+                                         uint32_t timeout_msec,
+                                         uint32_t pid,
+                                         struct smbXcli_tcon *tcon,
+                                         struct smbXcli_session *session,
+                                         const char *fname,
+                                         uint32_t CreatFlags,
+                                         uint32_t RootDirectoryFid,
+                                         uint32_t DesiredAccess,
+                                         uint64_t AllocationSize,
+                                         uint32_t FileAttributes,
+                                         uint32_t ShareAccess,
+                                         uint32_t CreateDisposition,
+                                         uint32_t CreateOptions,
+                                         uint32_t ImpersonationLevel,
+                                         uint8_t SecurityFlags)
+{
+       struct tevent_req *req, *subreq;
+       struct smb1cli_ntcreatex_state *state;
+       uint8_t *bytes;
+       size_t converted_len;
+
+       req = tevent_req_create(mem_ctx, &state, struct smb1cli_ntcreatex_state);
+       if (req == NULL) {
+               return NULL;
+       }
+
+       SCVAL(state->vwv+0, 0, 0xFF);
+       SCVAL(state->vwv+0, 1, 0);
+       SSVAL(state->vwv+1, 0, 0);
+       SCVAL(state->vwv+2, 0, 0);
+       SIVAL(state->vwv+3, 1, CreatFlags);
+       SIVAL(state->vwv+5, 1, RootDirectoryFid);
+       SIVAL(state->vwv+7, 1, DesiredAccess);
+       SBVAL(state->vwv+9, 1, AllocationSize);
+       SIVAL(state->vwv+13, 1, FileAttributes);
+       SIVAL(state->vwv+15, 1, ShareAccess);
+       SIVAL(state->vwv+17, 1, CreateDisposition);
+       SIVAL(state->vwv+19, 1, CreateOptions);
+       SIVAL(state->vwv+21, 1, ImpersonationLevel);
+       SCVAL(state->vwv+23, 1, SecurityFlags);
+
+       bytes = talloc_array(state, uint8_t, 0);
+       bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(conn),
+                                  fname, strlen(fname)+1,
+                                  &converted_len);
+
+       /* sigh. this copes with broken netapp filer behaviour */
+       bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(conn), "", 1, NULL);
+
+       if (tevent_req_nomem(bytes, req)) {
+               return tevent_req_post(req, ev);
+       }
+
+       SSVAL(state->vwv+2, 1, converted_len);
+
+       subreq = smb1cli_req_send(state, ev, conn, SMBntcreateX,
+                                 0, 0, /* *_flags */
+                                 0, 0, /* *_flags2 */
+                                 timeout_msec, pid, tcon, session,
+                                 ARRAY_SIZE(state->vwv), state->vwv,
+                                 talloc_get_size(bytes), bytes);
+       if (tevent_req_nomem(subreq, req)) {
+               return tevent_req_post(req, ev);
+       }
+       tevent_req_set_callback(subreq, smb1cli_ntcreatex_done, req);
+
+       return req;
+}
+
+static void smb1cli_ntcreatex_done(struct tevent_req *subreq)
+{
+       struct tevent_req *req = tevent_req_callback_data(
+               subreq, struct tevent_req);
+       struct smb1cli_ntcreatex_state *state = tevent_req_data(
+               req, struct smb1cli_ntcreatex_state);
+       struct iovec *recv_iov = NULL;
+       uint8_t wct;
+       uint16_t *vwv;
+       NTSTATUS status;
+       static const struct smb1cli_req_expected_response expected[] = {
+       {
+               .status = NT_STATUS_OK,
+               .wct = 0x22
+       },
+       {
+               /*
+                * This is the broken version see from
+                * [MS-SMB]:
+                * Windows-based SMB servers send 50 (0x32) words in the extended
+                * response although they set the WordCount field to 0x2A.
+                *
+                * And Samba does the same...
+                */
+               .status = NT_STATUS_OK,
+               .wct = 0x2a
+       },
+       {
+               .status = NT_STATUS_OK,
+               .wct = 0x32
+       },
+       };
+
+       status = smb1cli_req_recv(subreq, state,
+                                 &recv_iov,
+                                 NULL, /* phdr */
+                                 &wct,
+                                 &vwv,
+                                 NULL, /* pvwv_offset */
+                                 NULL, /* num_bytes */
+                                 NULL, /* bytes */
+                                 NULL, /* pbytes_offset */
+                                 NULL, /* inbuf */
+                                 expected, ARRAY_SIZE(expected));
+       TALLOC_FREE(subreq);
+       if (tevent_req_nterror(req, status)) {
+               return;
+       }
+
+       state->fnum = SVAL(vwv+2, 1);
+       tevent_req_done(req);
+}
+
+/**
+ * Receive the response to an asynchronous SMB_COM_NT_CREATE_ANDX request.
+ * <a href="http://msdn.microsoft.com/en-us/library/ee441612.aspx">MS-CIFS 2.2.4.64.2</a>
+ *
+ * @param[in] req A tevent request created with smb1cli_ntcreatex_send()
+ * @param[out] pfnum The file id of the opened file or directory.
+ *
+ * @return NT_STATUS_OK on succsess
+ */
+NTSTATUS smb1cli_ntcreatex_recv(struct tevent_req *req, uint16_t *pfnum)
+{
+       struct smb1cli_ntcreatex_state *state = tevent_req_data(
+               req, struct smb1cli_ntcreatex_state);
+       NTSTATUS status;
+
+       if (tevent_req_is_nterror(req, &status)) {
+               tevent_req_received(req);
+               return status;
+       }
+
+       *pfnum = state->fnum;
+       tevent_req_received(req);
+       return NT_STATUS_OK;
+}
+
+
+/**
+ * Send a synchronous SMB_COM_NT_CREATE_ANDX request.
+ * <a href="http://msdn.microsoft.com/en-us/library/ee442091.aspx">MS-CIFS 2.2.4.64</a>
+ * @see smb1cli_ntcreatex_send() smb1cli_ntcreatex_recv()
+ *
+ * @param[in] conn The smb connection.
+ * @param[in] timeout_msec If positiv a timeout for the request.
+ * @param[in] pid The process identifier
+ * @param[in] tcon The smb tree connect.
+ * @param[in] session The smb session.
+ * @param[in] fname The name of the file or directory to be opened or created.
+ * @param[in] CreatFlags
+ * @param[in] RootDirectoryFid The file id of an opened root directory fname is based on. 0 means root of the share.
+ * @param[in] DesiredAccess A field of flags that indicate standard, specific, and generic access rights to be requested.
+ * @param[in] AllocationSize Number of Bytes to allocate if the file is to be created or overwritten.
+ * @param[in] FileAttributes <a href="http://msdn.microsoft.com/en-us/library/ee878573.aspx">Extended file attributes</a>
+ * @param[in] ShareAccess A field that specifies how the file should be shared with other processes.
+ * @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.
+ * @param[in] CreateOptions  A field of flag options to use if creating a file or directory.
+ * @param[in] ImpersonationLevel
+ * @param[in] SecurityFlags
+ * @param[out] pfnum The file id representing the file or directory created or opened.
+ *
+ * @return  NT_STATUS_OK on succsess
+ */
+NTSTATUS smb1cli_ntcreatex(struct smbXcli_conn *conn,
+                          uint32_t timeout_msec,
+                          uint32_t pid,
+                          struct smbXcli_tcon *tcon,
+                          struct smbXcli_session *session,
+                          const char *fname,
+                          uint32_t CreatFlags,
+                          uint32_t RootDirectoryFid,
+                          uint32_t DesiredAccess,
+                          uint64_t AllocationSize,
+                          uint32_t FileAttributes,
+                          uint32_t ShareAccess,
+                          uint32_t CreateDisposition,
+                          uint32_t CreateOptions,
+                          uint32_t ImpersonationLevel,
+                          uint8_t SecurityFlags,
+                          uint16_t *pfnum)
+{
+       TALLOC_CTX *frame = NULL;
+       struct tevent_context *ev;
+       struct tevent_req *req;
+       NTSTATUS status = NT_STATUS_OK;
+
+       frame = talloc_stackframe();
+
+       if (smbXcli_conn_has_async_calls(conn)) {
+               /*
+                * Can't use sync call while an async call is in flight
+                */
+               status = NT_STATUS_INVALID_PARAMETER;
+               goto fail;
+       }
+
+       ev = samba_tevent_context_init(frame);
+       if (ev == NULL) {
+               status = NT_STATUS_NO_MEMORY;
+               goto fail;
+       }
+
+       req = smb1cli_ntcreatex_send(frame, ev, conn,
+                                    timeout_msec,
+                                    pid, tcon, session,
+                                    fname, CreatFlags, RootDirectoryFid,
+                                    DesiredAccess, AllocationSize,
+                                    FileAttributes, ShareAccess,
+                                    CreateDisposition, CreateOptions,
+                                    ImpersonationLevel, SecurityFlags);
+       if (req == NULL) {
+               status = NT_STATUS_NO_MEMORY;
+               goto fail;
+       }
+
+       if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+               goto fail;
+       }
+
+       status = smb1cli_ntcreatex_recv(req, pfnum);
+fail:
+       TALLOC_FREE(frame);
+       return status;
+}
index 11dbf219bd9c7d0e50db7eef61101e7732c0ba90..cb705f1f17f246b5b50a13206c13e2665fc66e79 100644 (file)
@@ -201,6 +201,43 @@ NTSTATUS smb1cli_echo_recv(struct tevent_req *req);
 NTSTATUS smb1cli_echo(struct smbXcli_conn *conn, uint32_t timeout_msec,
                      uint16_t num_echos, DATA_BLOB data);
 
+struct tevent_req *smb1cli_ntcreatex_send(TALLOC_CTX *mem_ctx,
+                                         struct tevent_context *ev,
+                                         struct smbXcli_conn *conn,
+                                         uint32_t timeout_msec,
+                                         uint32_t pid,
+                                         struct smbXcli_tcon *tcon,
+                                         struct smbXcli_session *session,
+                                         const char *fname,
+                                         uint32_t CreatFlags,
+                                         uint32_t RootDirectoryFid,
+                                         uint32_t DesiredAccess,
+                                         uint64_t AllocationSize,
+                                         uint32_t FileAttributes,
+                                         uint32_t ShareAccess,
+                                         uint32_t CreateDisposition,
+                                         uint32_t CreateOptions,
+                                         uint32_t ImpersonationLevel,
+                                         uint8_t SecurityFlags);
+NTSTATUS smb1cli_ntcreatex_recv(struct tevent_req *req, uint16_t *pfnum);
+NTSTATUS smb1cli_ntcreatex(struct smbXcli_conn *conn,
+                          uint32_t timeout_msec,
+                          uint32_t pid,
+                          struct smbXcli_tcon *tcon,
+                          struct smbXcli_session *session,
+                          const char *fname,
+                          uint32_t CreatFlags,
+                          uint32_t RootDirectoryFid,
+                          uint32_t DesiredAccess,
+                          uint64_t AllocationSize,
+                          uint32_t FileAttributes,
+                          uint32_t ShareAccess,
+                          uint32_t CreateDisposition,
+                          uint32_t CreateOptions,
+                          uint32_t ImpersonationLevel,
+                          uint8_t SecurityFlags,
+                          uint16_t *pfnum);
+
 bool smb2cli_conn_req_possible(struct smbXcli_conn *conn, uint32_t *max_dyn_len);
 uint32_t smb2cli_conn_server_capabilities(struct smbXcli_conn *conn);
 uint16_t smb2cli_conn_server_security_mode(struct smbXcli_conn *conn);
index 544c43edf2a60a02309fa8fd549ed099aa64f1e1..06a5dc861d77e47223dce3ebe1028b60f5cba05b 100755 (executable)
@@ -23,6 +23,7 @@ def build(bld):
                smbXcli_base.c
                smb1cli_trans.c
                smb1cli_echo.c
+                smb1cli_create.c
                smb2cli_session.c
                 smb2cli_create.c
                 smb2cli_close.c