diff options
Diffstat (limited to 'libcli/smb/tstream_smbXcli_np.h')
| -rw-r--r-- | libcli/smb/tstream_smbXcli_np.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/libcli/smb/tstream_smbXcli_np.h b/libcli/smb/tstream_smbXcli_np.h index c4af5327173..e8c5c39297a 100644 --- a/libcli/smb/tstream_smbXcli_np.h +++ b/libcli/smb/tstream_smbXcli_np.h @@ -49,4 +49,24 @@ NTSTATUS tstream_smbXcli_np_use_trans(struct tstream_context *stream); unsigned int tstream_smbXcli_np_set_timeout(struct tstream_context *stream, unsigned int timeout); +/* + * Windows uses 4280 (the max xmit/recv size negotiated on DCERPC). + * This is fits into the max_xmit negotiated at the SMB layer. + * + * On the sending side they may use SMBtranss if the request does not + * fit into a single SMBtrans call. + * + * Windows uses 1024 as max data size of a SMBtrans request and then + * possibly reads the rest of the DCERPC fragment (up to 3256 bytes) + * via a SMBreadX. + * + * For now we just ask for the full 4280 bytes (max data size) in the SMBtrans + * request to get the whole fragment at once (like samba 3.5.x and below did. + * + * It is important that we use do SMBwriteX with the size of a full fragment, + * otherwise we may get NT_STATUS_PIPE_BUSY on the SMBtrans request + * from NT4 servers. (See bug #8195) + */ +#define TSTREAM_SMBXCLI_NP_MAX_BUF_SIZE 4280 + #endif /* _CLI_NP_TSTREAM_H_ */ |