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s3: libsmb: Add cli_smb2_ftruncate(), plumb into cli_ftruncate().

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BUG: https://bugzilla.samba.org/show_bug.cgi?id=12479

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Uri Simchoni <uri@samba.org>
This commit is contained in:
Jeremy Allison 2016-12-21 13:55:50 -08:00 committed by Volker Lendecke
parent 98bcdca632
commit e0f1ed9f45
3 changed files with 75 additions and 1 deletions
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65
source3/libsmb/cli_smb2_fnum.c
View File

@ -3574,3 +3574,68 @@ NTSTATUS cli_smb2_shadow_copy_data(TALLOC_CTX *mem_ctx,
TALLOC_FREE(frame);
return status;
}
/***************************************************************
Wrapper that allows SMB2 to truncate a file.
Synchronous only.
***************************************************************/
NTSTATUS cli_smb2_ftruncate(struct cli_state *cli,
uint16_t fnum,
uint64_t newsize)
{
NTSTATUS status;
DATA_BLOB inbuf = data_blob_null;
struct smb2_hnd *ph = NULL;
TALLOC_CTX *frame = talloc_stackframe();
if (smbXcli_conn_has_async_calls(cli->conn)) {
/*
* Can't use sync call while an async call is in flight
*/
status = NT_STATUS_INVALID_PARAMETER;
goto fail;
}
if (smbXcli_conn_protocol(cli->conn) < PROTOCOL_SMB2_02) {
status = NT_STATUS_INVALID_PARAMETER;
goto fail;
}
status = map_fnum_to_smb2_handle(cli,
fnum,
&ph);
if (!NT_STATUS_IS_OK(status)) {
goto fail;
}
inbuf = data_blob_talloc_zero(frame, 8);
if (inbuf.data == NULL) {
status = NT_STATUS_NO_MEMORY;
goto fail;
}
SBVAL(inbuf.data, 0, newsize);
/* setinfo on the handle with info_type SMB2_SETINFO_FILE (1),
level 20 (SMB_FILE_END_OF_FILE_INFORMATION - 1000). */
status = smb2cli_set_info(cli->conn,
cli->timeout,
cli->smb2.session,
cli->smb2.tcon,
1, /* in_info_type */
/* in_file_info_class */
SMB_FILE_END_OF_FILE_INFORMATION - 1000,
&inbuf, /* in_input_buffer */
0, /* in_additional_info */
ph->fid_persistent,
ph->fid_volatile);
fail:
cli->raw_status = status;
TALLOC_FREE(frame);
return status;
}

3
source3/libsmb/cli_smb2_fnum.h
View File

@ -208,4 +208,7 @@ NTSTATUS cli_smb2_shadow_copy_data(TALLOC_CTX *mem_ctx,
bool get_names,
char ***pnames,
int *pnum_names);
NTSTATUS cli_smb2_ftruncate(struct cli_state *cli,
uint16_t fnum,
uint64_t newsize);
#endif /* __SMB2CLI_FNUM_H__ */

8
source3/libsmb/clifile.c
View File

@ -2819,11 +2819,17 @@ NTSTATUS cli_ftruncate_recv(struct tevent_req *req)
NTSTATUS cli_ftruncate(struct cli_state *cli, uint16_t fnum, uint64_t size)
{
TALLOC_CTX *frame = talloc_stackframe();
TALLOC_CTX *frame = NULL;
struct tevent_context *ev = NULL;
struct tevent_req *req = NULL;
NTSTATUS status = NT_STATUS_OK;
if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
return cli_smb2_ftruncate(cli, fnum, size);
}
frame = talloc_stackframe();
if (smbXcli_conn_has_async_calls(cli->conn)) {
/*
* Can't use sync call while an async call is in flight