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Diffstat (limited to 'source4/libcli/smb2/smb2.h')
| -rw-r--r-- | source4/libcli/smb2/smb2.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/source4/libcli/smb2/smb2.h b/source4/libcli/smb2/smb2.h new file mode 100644 index 0000000000..2e01159355 --- /dev/null +++ b/source4/libcli/smb2/smb2.h @@ -0,0 +1,154 @@ +/* + Unix SMB/CIFS implementation. + + SMB2 client library header + + Copyright (C) Andrew Tridgell 2005 + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +struct smb2_options { + uint32_t timeout; +}; + +/* + information returned from the negotiate response +*/ +struct smb2_negotiate { + DATA_BLOB secblob; + +}; + +/* this is the context for the smb2 transport layer */ +struct smb2_transport { + /* socket level info */ + struct smbcli_socket *socket; + + struct smb2_options options; + struct smb2_negotiate negotiate; + + /* next seqnum to allocate */ + uint64_t seqnum; + + /* a list of requests that are pending for receive on this + connection */ + struct smb2_request *pending_recv; + + /* context of the stream -> packet parser */ + struct packet_context *packet; +}; + + +struct smb2_request_buffer { + /* the raw SMB2 buffer, including the 4 byte length header */ + uint8_t *buffer; + + /* the size of the raw buffer, including 4 byte header */ + uint_t size; + + /* how much has been allocated - on reply the buffer is over-allocated to + prevent too many realloc() calls + */ + uint_t allocated; + + /* the start of the SMB2 header - this is always buffer+4 */ + uint8_t *hdr; + + /* the packet body */ + uint8_t *body; + uint_t body_size; + + /* ptr is used as a moving pointer into the data area + * of the packet. The reason its here and not a local + * variable in each function is that when a realloc of + * a send packet is done we need to move this + * pointer */ + uint8_t *ptr; +}; + + +/* + a client request moves between the following 4 states. +*/ +enum smb2_request_state {SMB2_REQUEST_INIT, /* we are creating the request */ + SMB2_REQUEST_RECV, /* we are waiting for a matching reply */ + SMB2_REQUEST_DONE, /* the request is finished */ + SMB2_REQUEST_ERROR}; /* a packet or transport level error has occurred */ + +/* the context for a single SMB2 request */ +struct smb2_request { + /* allow a request to be part of a list of requests */ + struct smb2_request *next, *prev; + + /* each request is in one of 3 possible states */ + enum smb2_request_state state; + + struct smb2_transport *transport; + + uint64_t seqnum; + + /* the NT status for this request. Set by packet receive code + or code detecting error. */ + NTSTATUS status; + + struct smb2_request_buffer in; + struct smb2_request_buffer out; + + /* information on what to do with a reply when it is received + asyncronously. If this is not setup when a reply is received then + the reply is discarded + + The private pointer is private to the caller of the client + library (the application), not private to the library + */ + struct { + void (*fn)(struct smb2_request *); + void *private; + } async; +}; + + +#define SMB2_MIN_SIZE 0x40 + +/* offsets into header elements */ +#define SMB2_HDR_LENGTH 0x04 +#define SMB2_HDR_PAD1 0x06 +#define SMB2_HDR_STATUS 0x08 +#define SMB2_HDR_OPCODE 0x0c +#define SMB2_HDR_PAD2 0x0e +#define SMB2_HDR_FLAGS 0x10 +#define SMB2_HDR_UNKNOWN 0x14 +#define SMB2_HDR_SEQNUM 0x18 +#define SMB2_HDR_PID 0x20 +#define SMB2_HDR_TID 0x24 +#define SMB2_HDR_UID 0x28 +#define SMB2_HDR_UID2 0x2c /* whats this? */ +#define SMB2_HDR_SIG 0x30 /* guess ... */ +#define SMB2_HDR_BODY 0x40 + +/* SMB2 opcodes */ +#define SMB2_OP_NEGPROT 0x00 +#define SMB2_OP_SESSSETUP 0x01 +#define SMB2_OP_TCON 0x03 +#define SMB2_OP_TDIS 0x04 +#define SMB2_OP_CREATE 0x05 +#define SMB2_OP_CLOSE 0x06 +#define SMB2_OP_READ 0x08 +#define SMB2_OP_WRITE 0x09 +#define SMB2_OP_FIND 0x0e + +#define SMB2_MAGIC 0x424D53FE /* 0xFE 'S' 'M' 'B' */ + |