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/*
Unix SMB / Netbios implementation .
smbd globals
Copyright ( C ) Stefan Metzmacher 2009
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/>.
*/
# if defined(WITH_AIO)
struct aio_extra ;
extern struct aio_extra * aio_list_head ;
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extern struct tevent_signal * aio_signal_event ;
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extern int aio_pending_size ;
extern int outstanding_aio_calls ;
# endif
/* dlink list we store pending lock records on. */
extern struct blocking_lock_record * blocking_lock_queue ;
/* dlink list we move cancelled lock records onto. */
extern struct blocking_lock_record * blocking_lock_cancelled_queue ;
/* The event that makes us process our blocking lock queue */
extern struct timed_event * brl_timeout ;
extern bool blocking_lock_unlock_state ;
extern bool blocking_lock_cancel_state ;
# ifdef USE_DMAPI
struct smbd_dmapi_context ;
extern struct smbd_dmapi_context * dmapi_ctx ;
# endif
extern connection_struct * Connections ;
/* number of open connections */
extern struct bitmap * bmap ;
extern int num_open ;
extern bool dfree_broken ;
extern struct bitmap * dptr_bmap ;
//struct dptr_struct;
extern struct dptr_struct * dirptrs ;
extern int dirhandles_open ;
/* how many write cache buffers have been allocated */
extern unsigned int allocated_write_caches ;
extern int real_max_open_files ;
extern struct bitmap * file_bmap ;
extern files_struct * Files ;
extern int files_used ;
/* A singleton cache to speed up searching by dev/inode. */
struct fsp_singleton_cache {
files_struct * fsp ;
struct file_id id ;
} ;
extern struct fsp_singleton_cache fsp_fi_cache ;
extern unsigned long file_gen_counter ;
extern int first_file ;
extern const struct mangle_fns * mangle_fns ;
extern unsigned char * chartest ;
extern TDB_CONTEXT * tdb_mangled_cache ;
/* these tables are used to provide fast tests for characters */
extern unsigned char char_flags [ 256 ] ;
/*
this determines how many characters are used from the original filename
in the 8.3 mangled name . A larger value leads to a weaker hash and more collisions .
The largest possible value is 6.
*/
extern unsigned mangle_prefix ;
extern unsigned char base_reverse [ 256 ] ;
extern char * last_from ;
extern char * last_to ;
struct msg_state ;
extern struct msg_state * smbd_msg_state ;
extern bool global_encrypted_passwords_negotiated ;
extern bool global_spnego_negotiated ;
extern struct auth_context * negprot_global_auth_context ;
extern bool done_negprot ;
extern bool logged_ioctl_message ;
/* users from session setup */
extern char * session_userlist ;
/* workgroup from session setup. */
extern char * session_workgroup ;
/* this holds info on user ids that are already validated for this VC */
extern user_struct * validated_users ;
extern uint16_t next_vuid ;
extern int num_validated_vuids ;
# ifdef HAVE_NETGROUP
extern char * my_yp_domain ;
# endif
extern bool already_got_session ;
/*
* Size of data we can send to client . Set
* by the client for all protocols above CORE .
* Set by us for CORE protocol .
*/
extern int max_send ;
/*
* Size of the data we can receive . Set by us .
* Can be modified by the max xmit parameter .
*/
extern int max_recv ;
extern uint16 last_session_tag ;
extern int trans_num ;
extern char * orig_inbuf ;
extern pid_t mypid ;
extern time_t last_smb_conf_reload_time ;
extern time_t last_printer_reload_time ;
/****************************************************************************
structure to hold a linked list of queued messages .
for processing .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
struct pending_message_list ;
extern struct pending_message_list * deferred_open_queue ;
extern uint32_t common_flags2 ;
struct smb_srv_trans_enc_ctx ;
extern struct smb_srv_trans_enc_ctx * partial_srv_trans_enc_ctx ;
extern struct smb_srv_trans_enc_ctx * srv_trans_enc_ctx ;
struct sec_ctx {
UNIX_USER_TOKEN ut ;
NT_USER_TOKEN * token ;
} ;
/* A stack of security contexts. We include the current context as being
the first one , so there is room for another MAX_SEC_CTX_DEPTH more . */
extern struct sec_ctx sec_ctx_stack [ MAX_SEC_CTX_DEPTH + 1 ] ;
extern int sec_ctx_stack_ndx ;
extern bool become_uid_done ;
extern bool become_gid_done ;
extern connection_struct * last_conn ;
extern uint16_t last_flags ;
extern struct db_context * session_db_ctx_ptr ;
extern uint32_t global_client_caps ;
extern bool done_sesssetup ;
/****************************************************************************
List to store partial SPNEGO auth fragments .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
struct pending_auth_data ;
extern struct pending_auth_data * pd_list ;
extern uint16_t fnf_handle ;
struct conn_ctx {
connection_struct * conn ;
uint16 vuid ;
} ;
/* A stack of current_user connection contexts. */
extern struct conn_ctx conn_ctx_stack [ MAX_SEC_CTX_DEPTH ] ;
extern int conn_ctx_stack_ndx ;
struct vfs_init_function_entry ;
extern struct vfs_init_function_entry * backends ;
extern char * sparse_buf ;
extern char * LastDir ;
/* Current number of oplocks we have outstanding. */
extern int32_t exclusive_oplocks_open ;
extern int32_t level_II_oplocks_open ;
extern bool global_client_failed_oplock_break ;
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extern struct kernel_oplocks * koplocks ;
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extern struct notify_mid_map * notify_changes_by_mid ;
extern int am_parent ;
extern int server_fd ;
extern struct event_context * smbd_event_ctx ;
extern struct messaging_context * smbd_msg_ctx ;
extern struct memcache * smbd_memcache_ctx ;
extern bool exit_firsttime ;
struct child_pid ;
extern struct child_pid * children ;
extern int num_children ;
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struct tstream_context ;
struct smbd_smb2_request ;
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struct smbd_smb2_session ;
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struct smbd_smb2_tcon ;
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DATA_BLOB negprot_spnego ( void ) ;
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bool smbd_is_smb2_header ( const uint8_t * inbuf , size_t size ) ;
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void reply_smb2002 ( struct smb_request * req , uint16_t choice ) ;
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void smbd_smb2_first_negprot ( struct smbd_server_connection * conn ,
const uint8_t * inbuf , size_t size ) ;
NTSTATUS smbd_smb2_request_error_ex ( struct smbd_smb2_request * req ,
NTSTATUS status , DATA_BLOB * info ) ;
NTSTATUS smbd_smb2_request_error ( struct smbd_smb2_request * req ,
NTSTATUS status ) ;
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NTSTATUS smbd_smb2_request_done_ex ( struct smbd_smb2_request * req ,
NTSTATUS status ,
DATA_BLOB body , DATA_BLOB * dyn ) ;
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NTSTATUS smbd_smb2_request_done ( struct smbd_smb2_request * req ,
DATA_BLOB body , DATA_BLOB * dyn ) ;
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NTSTATUS smbd_smb2_request_check_session ( struct smbd_smb2_request * req ) ;
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NTSTATUS smbd_smb2_request_check_tcon ( struct smbd_smb2_request * req ) ;
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NTSTATUS smbd_smb2_request_process_negprot ( struct smbd_smb2_request * req ) ;
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NTSTATUS smbd_smb2_request_process_sesssetup ( struct smbd_smb2_request * req ) ;
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NTSTATUS smbd_smb2_request_process_logoff ( struct smbd_smb2_request * req ) ;
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NTSTATUS smbd_smb2_request_process_tcon ( struct smbd_smb2_request * req ) ;
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NTSTATUS smbd_smb2_request_process_tdis ( struct smbd_smb2_request * req ) ;
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NTSTATUS smbd_smb2_request_process_keepalive ( struct smbd_smb2_request * req ) ;
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struct smbd_smb2_request {
TALLOC_CTX * mem_pool ;
struct smbd_server_connection * conn ;
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/* the session the request operates on, maybe NULL */
struct smbd_smb2_session * session ;
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/* the tcon the request operates on, maybe NULL */
struct smbd_smb2_tcon * tcon ;
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int current_idx ;
struct {
/* the NBT header is not allocated */
uint8_t nbt_hdr [ 4 ] ;
/*
* vector [ 0 ] NBT
* .
* vector [ 1 ] SMB2
* vector [ 2 ] fixed body
* vector [ 3 ] dynamic body
* .
* .
* .
* vector [ 4 ] SMB2
* vector [ 5 ] fixed body
* vector [ 6 ] dynamic body
* .
* .
* .
*/
struct iovec * vector ;
int vector_count ;
} in ;
struct {
/* the NBT header is not allocated */
uint8_t nbt_hdr [ 4 ] ;
/*
* vector [ 0 ] NBT
* .
* vector [ 1 ] SMB2
* vector [ 2 ] fixed body
* vector [ 3 ] dynamic body
* .
* .
* .
* vector [ 4 ] SMB2
* vector [ 5 ] fixed body
* vector [ 6 ] dynamic body
* .
* .
* .
*/
struct iovec * vector ;
int vector_count ;
} out ;
} ;
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struct smbd_server_connection ;
struct smbd_smb2_session {
struct smbd_smb2_session * prev , * next ;
struct smbd_server_connection * conn ;
NTSTATUS status ;
uint64_t vuid ;
AUTH_NTLMSSP_STATE * auth_ntlmssp_state ;
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struct {
/* an id tree used to allocate tids */
struct idr_context * idtree ;
/* this is the limit of tid values for this connection */
uint32_t limit ;
struct smbd_smb2_tcon * list ;
} tcons ;
} ;
struct smbd_smb2_tcon {
struct smbd_smb2_tcon * prev , * next ;
struct smbd_smb2_session * session ;
uint32_t tid ;
int snum ;
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} ;
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struct smbd_server_connection {
struct fd_event * fde ;
uint64_t num_requests ;
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struct smb_signing_state * signing_state ;
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bool allow_smb2 ;
struct {
struct tevent_context * event_ctx ;
struct tevent_queue * recv_queue ;
struct tevent_queue * send_queue ;
struct tstream_context * stream ;
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struct {
/* an id tree used to allocate vuids */
/* this holds info on session vuids that are already
* validated for this VC */
struct idr_context * idtree ;
/* this is the limit of vuid values for this connection */
uint64_t limit ;
struct smbd_smb2_session * list ;
} sessions ;
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} smb2 ;
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} ;
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extern struct smbd_server_connection * smbd_server_conn ;
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void smbd_init_globals ( void ) ;