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/*
Unix SMB/CIFS implementation.
SMB parameters and setup
Copyright (C) Andrew Tridgell 1992-1997
Copyright (C) Luke Kenneth Casson Leighton 1996-1997
Copyright (C) Paul Ashton 1997
Copyright (C) Jeremy Allison 2000-2004
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/>.
*/
#ifndef _NT_DOMAIN_H /* _NT_DOMAIN_H */
#define _NT_DOMAIN_H
/*
* A bunch of stuff that was put into smb.h
* in the NTDOM branch - it didn't belong there.
*/
typedef struct _prs_struct {
bool io; /* parsing in or out of data stream */
/*
* If the (incoming) data is big-endian. On output we are
* always little-endian.
*/
bool bigendian_data;
uint8 align; /* data alignment */
bool is_dynamic; /* Do we own this memory or not ? */
uint32 data_offset; /* Current working offset into data. */
uint32 buffer_size; /* Current allocated size of the buffer. */
uint32 grow_size; /* size requested via prs_grow() calls */
char *data_p; /* The buffer itself. */
TALLOC_CTX *mem_ctx; /* When unmarshalling, use this.... */
const char *sess_key; /* If we have to do encrypt/decrypt on the fly. */
} prs_struct;
/*
* Defines for io member of prs_struct.
*/
#define MARSHALL 0
#define UNMARSHALL 1
#define MARSHALLING(ps) (!(ps)->io)
#define UNMARSHALLING(ps) ((ps)->io)
#define RPC_BIG_ENDIAN 1
#define RPC_LITTLE_ENDIAN 0
#define RPC_PARSE_ALIGN 4
typedef struct _output_data {
/*
* Raw RPC output data. This does not include RPC headers or footers.
*/
prs_struct rdata;
/* The amount of data sent from the current rdata struct. */
uint32 data_sent_length;
/*
* The current PDU being returned. This inclues
* headers, data and authentication footer.
*/
unsigned char current_pdu[RPC_MAX_PDU_FRAG_LEN];
/* The amount of data in the current_pdu buffer. */
uint32 current_pdu_len;
/* The amount of data sent from the current PDU. */
uint32 current_pdu_sent;
} output_data;
typedef struct _input_data {
/*
* This is the current incoming pdu. The data here
* is collected via multiple writes until a complete
* pdu is seen, then the data is copied into the in_data
* structure. The maximum size of this is 0x1630 (RPC_MAX_PDU_FRAG_LEN).
*/
unsigned char current_in_pdu[RPC_MAX_PDU_FRAG_LEN];
/*
* The amount of data needed to complete the in_pdu.
* If this is zero, then we are at the start of a new
* pdu.
*/
uint32 pdu_needed_len;
/*
* The amount of data received so far in the in_pdu.
* If this is zero, then we are at the start of a new
* pdu.
*/
uint32 pdu_received_len;
/*
* This is the collection of input data with all
* the rpc headers and auth footers removed.
* The maximum length of this (1Mb) is strictly enforced.
*/
prs_struct data;
} input_data;
/*
* Handle database - stored per pipe.
*/
struct policy {
struct policy *next, *prev;
POLICY_HND pol_hnd;
void *data_ptr;
void (*free_fn)(void *);
};
struct handle_list {
struct policy *Policy; /* List of policies. */
size_t count; /* Current number of handles. */
size_t pipe_ref_count; /* Number of pipe handles referring to this list. */
};
/* Domain controller authentication protocol info */
struct dcinfo {
uint32 sequence; /* "timestamp" from client. */
struct netr_Credential seed_chal;
struct netr_Credential clnt_chal; /* Client credential */
struct netr_Credential srv_chal; /* Server credential */
unsigned char sess_key[16]; /* Session key - 8 bytes followed by 8 zero bytes */
unsigned char mach_pw[16]; /* md4(machine password) */
fstring mach_acct; /* Machine name we've authenticated. */
fstring remote_machine; /* Machine name we've authenticated. */
fstring domain;
bool challenge_sent;
bool authenticated;
};
typedef struct pipe_rpc_fns {
struct pipe_rpc_fns *next, *prev;
/* RPC function table associated with the current rpc_bind (associated by context) */
struct api_struct *cmds;
int n_cmds;
uint32 context_id;
} PIPE_RPC_FNS;
/*
* Different auth types we support.
* Can't keep in sync with wire values as spnego wraps different auth methods.
*/
enum pipe_auth_type { PIPE_AUTH_TYPE_NONE = 0, PIPE_AUTH_TYPE_NTLMSSP, PIPE_AUTH_TYPE_SCHANNEL,
PIPE_AUTH_TYPE_SPNEGO_NTLMSSP, PIPE_AUTH_TYPE_KRB5, PIPE_AUTH_TYPE_SPNEGO_KRB5 };
/* Possible auth levels - keep these in sync with the wire values. */
enum pipe_auth_level { PIPE_AUTH_LEVEL_NONE = 0,
PIPE_AUTH_LEVEL_CONNECT = 1, /* We treat as NONE. */
PIPE_AUTH_LEVEL_INTEGRITY = 5, /* Sign. */
PIPE_AUTH_LEVEL_PRIVACY = 6 /* Seal. */
};
/* auth state for krb5. */
struct kerberos_auth_struct {
const char *service_principal;
DATA_BLOB session_key;
};
/* auth state for schannel. */
struct schannel_auth_struct {
unsigned char sess_key[16];
uint32 seq_num;
};
/* auth state for all bind types. */
struct pipe_auth_data {
enum pipe_auth_type auth_type; /* switch for union below. */
enum pipe_auth_level auth_level;
union {
struct schannel_auth_struct *schannel_auth;
AUTH_NTLMSSP_STATE *auth_ntlmssp_state;
/* struct kerberos_auth_struct *kerberos_auth; TO BE ADDED... */
} a_u;
void (*auth_data_free_func)(struct pipe_auth_data *);
};
/*
* DCE/RPC-specific samba-internal-specific handling of data on
* NamedPipes.
*/
typedef struct pipes_struct {
struct pipes_struct *next, *prev;
connection_struct *conn;
uint16 vuid; /* points to the unauthenticated user that opened this pipe. */
fstring name;
fstring pipe_srv_name;
/* linked list of rpc dispatch tables associated
with the open rpc contexts */
PIPE_RPC_FNS *contexts;
RPC_HDR hdr; /* Incoming RPC header. */
RPC_HDR_REQ hdr_req; /* Incoming request header. */
/* This context is used for pipe state storage and is freed when the pipe is closed. */
TALLOC_CTX *pipe_state_mem_ctx;
struct pipe_auth_data auth;
struct dcinfo *dc; /* Keeps the creds data from netlogon. */
/*
* Windows user info.
*/
fstring user_name;
fstring domain;
fstring wks;
/*
* Unix user name and credentials used when a pipe is authenticated.
*/
fstring pipe_user_name;
struct current_user pipe_user;
DATA_BLOB session_key;
/*
* Set to true when an RPC bind has been done on this pipe.
*/
bool pipe_bound;
/*
* Set to true when we should return fault PDU's for everything.
*/
bool fault_state;
/*
* Set to true when we should return fault PDU's for a bad handle.
*/
bool bad_handle_fault_state;
/*
* Set to true when the backend does not support a call.
*/
bool rng_fault_state;
/*
* Set to RPC_BIG_ENDIAN when dealing with big-endian PDU's
*/
bool endian;
/*
* Struct to deal with multiple pdu inputs.
*/
input_data in_data;
/*
* Struct to deal with multiple pdu outputs.
*/
output_data out_data;
/* This context is used for PDU data and is freed between each pdu.
Don't use for pipe state storage. */
TALLOC_CTX *mem_ctx;
/* handle database to use on this pipe. */
struct handle_list *pipe_handles;
} pipes_struct;
typedef struct smb_np_struct {
struct smb_np_struct *next, *prev;
int pnum;
connection_struct *conn;
uint16 vuid; /* points to the unauthenticated user that opened this pipe. */
bool open; /* open connection */
uint16 device_state;
uint16 priority;
char *name;
/* When replying to an SMBtrans, this is the maximum amount of
data that can be sent in the initial reply. */
int max_trans_reply;
/*
* NamedPipe state information.
*
* (e.g. typecast a np_struct, above).
*/
void *np_state;
/*
* NamedPipe functions, to be called to perform
* Named Pipe transactions on request from an
* SMB client.
*/
/* call to create a named pipe connection.
* returns: state information representing the connection.
* is stored in np_state, above.
*/
void * (*namedpipe_create)(const char *pipe_name,
connection_struct *conn, uint16 vuid);
/* call to perform a write / read namedpipe transaction.
* TransactNamedPipe is weird: it returns whether there
* is more data outstanding to be read, and the
* caller is expected to take note and follow up with
* read requests.
*/
ssize_t (*namedpipe_transact)(void *np_state,
char *data, int len,
char *rdata, int rlen,
bool *pipe_outstanding);
/* call to perform a write namedpipe operation
*/
ssize_t (*namedpipe_write)(void * np_state,
char *data, size_t n);
/* call to perform a read namedpipe operation.
*
* NOTE: the only reason that the pipe_outstanding
* argument is here is because samba does not use
* the namedpipe_transact function yet: instead,
* it performs the same as what namedpipe_transact
* does - a write, followed by a read.
*
* when samba is modified to use namedpipe_transact,
* the pipe_outstanding argument may be removed.
*/
ssize_t (*namedpipe_read)(void * np_state,
char *data, size_t max_len,
bool *pipe_outstanding);
/* call to close a namedpipe.
* function is expected to perform all cleanups
* necessary, free all memory etc.
*
* returns True if cleanup was successful (not that
* we particularly care).
*/
bool (*namedpipe_close)(void * np_state);
} smb_np_struct;
struct api_struct {
const char *name;
uint8 opnum;
bool (*fn) (pipes_struct *);
};
typedef struct {
uint32 rid;
const char *name;
} rid_name;
/*
* higher order functions for use with msrpc client code
*/
#define PRINT_INFO_FN(fn)\
void (*fn)(const char*, uint32, uint32, void *const *const)
#define JOB_INFO_FN(fn)\
void (*fn)(const char*, const char*, uint32, uint32, void *const *const)
/* end higher order functions */
typedef struct {
uint32 size;
prs_struct prs;
uint32 struct_start;
uint32 string_at_end;
} RPC_BUFFER;
#endif /* _NT_DOMAIN_H */
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