/* Unix SMB/Netbios implementation. smbd globals Copyright (C) Stefan Metzmacher 2009 Copyright (C) Jeremy Allison 2010 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 . */ #include "system/select.h" #include "librpc/gen_ndr/smbXsrv.h" extern int aio_pending_size; extern int outstanding_aio_calls; #ifdef USE_DMAPI struct smbd_dmapi_context; extern struct smbd_dmapi_context *dmapi_ctx; #endif extern bool dfree_broken; /* how many write cache buffers have been allocated */ extern unsigned int allocated_write_caches; /* A singleton cache to speed up searching by dev/inode. */ struct fsp_singleton_cache { files_struct *fsp; struct file_id id; }; extern const struct mangle_fns *mangle_fns; extern unsigned char *chartest; struct tdb_context; extern struct tdb_context *tdb_mangled_cache; /* 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; struct msg_state; extern bool logged_ioctl_message; extern int trans_num; extern time_t last_smb_conf_reload_time; extern time_t last_printer_reload_time; extern pid_t background_lpq_updater_pid; /**************************************************************************** structure to hold a linked list of queued messages. for processing. ****************************************************************************/ extern uint32_t common_flags2; extern struct smb_trans_enc_state *partial_srv_trans_enc_ctx; extern struct smb_trans_enc_state *srv_trans_enc_ctx; struct sec_ctx { struct security_unix_token ut; struct security_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 uint32_t global_client_caps; extern uint16_t fnf_handle; struct conn_ctx { connection_struct *conn; uint64_t 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; struct smbd_parent_context; extern struct smbd_parent_context *am_parent; extern struct memcache *smbd_memcache_ctx; extern bool exit_firsttime; struct tstream_context; struct smbd_smb2_request; DATA_BLOB negprot_spnego(TALLOC_CTX *ctx, struct smbd_server_connection *sconn); void smbd_lock_socket(struct smbd_server_connection *sconn); void smbd_unlock_socket(struct smbd_server_connection *sconn); NTSTATUS smbd_do_locking(struct smb_request *req, files_struct *fsp, uint8_t type, int32_t timeout, uint16_t num_ulocks, struct smbd_lock_element *ulocks, uint16_t num_locks, struct smbd_lock_element *locks, bool *async); NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn, TALLOC_CTX *mem_ctx, uint16_t info_level, files_struct *fsp, struct smb_filename *smb_fname, bool delete_pending, struct timespec write_time_ts, struct ea_list *ea_list, int lock_data_count, char *lock_data, uint16_t flags2, unsigned int max_data_bytes, size_t *fixed_portion, char **ppdata, unsigned int *pdata_size); NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn, struct smb_request *req, TALLOC_CTX *mem_ctx, uint16_t info_level, files_struct *fsp, struct smb_filename *smb_fname, char **ppdata, int total_data, int *ret_data_size); NTSTATUS smbd_do_qfsinfo(connection_struct *conn, TALLOC_CTX *mem_ctx, uint16_t info_level, uint16_t flags2, unsigned int max_data_bytes, size_t *fixed_portion, struct smb_filename *smb_fname, char **ppdata, int *ret_data_len); bool smbd_dirptr_get_entry(TALLOC_CTX *ctx, struct dptr_struct *dirptr, const char *mask, uint32_t dirtype, bool dont_descend, bool ask_sharemode, bool (*match_fn)(TALLOC_CTX *ctx, void *private_data, const char *dname, const char *mask, char **_fname), bool (*mode_fn)(TALLOC_CTX *ctx, void *private_data, struct smb_filename *smb_fname, uint32_t *_mode), void *private_data, char **_fname, struct smb_filename **_smb_fname, uint32_t *_mode, long *_prev_offset); bool smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx, connection_struct *conn, struct dptr_struct *dirptr, uint16 flags2, const char *path_mask, uint32 dirtype, int info_level, int requires_resume_key, bool dont_descend, bool ask_sharemode, uint8_t align, bool do_pad, char **ppdata, char *base_data, char *end_data, int space_remaining, bool *out_of_space, bool *got_exact_match, int *_last_entry_off, struct ea_list *name_list); NTSTATUS smbd_calculate_access_mask(connection_struct *conn, const struct smb_filename *smb_fname, bool use_privs, uint32_t access_mask, uint32_t *access_mask_out); void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq); void smbd_server_connection_terminate_ex(struct smbd_server_connection *sconn, const char *reason, const char *location); #define smbd_server_connection_terminate(sconn, reason) \ smbd_server_connection_terminate_ex(sconn, reason, __location__) const char *smb2_opcode_name(uint16_t opcode); bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size); void reply_smb2002(struct smb_request *req, uint16_t choice); void reply_smb20ff(struct smb_request *req, uint16_t choice); void smbd_smb2_first_negprot(struct smbd_server_connection *sconn, uint8_t *inbuf, size_t size); DATA_BLOB smbd_smb2_generate_outbody(struct smbd_smb2_request *req, size_t size); NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req, NTSTATUS status, DATA_BLOB *info, const char *location); #define smbd_smb2_request_error(req, status) \ smbd_smb2_request_error_ex(req, status, NULL, __location__) NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req, NTSTATUS status, DATA_BLOB body, DATA_BLOB *dyn, const char *location); #define smbd_smb2_request_done(req, body, dyn) \ smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__) NTSTATUS smbd_smb2_send_oplock_break(struct smbd_server_connection *sconn, struct smbXsrv_session *session, struct smbXsrv_tcon *tcon, struct smbXsrv_open *op, uint8_t oplock_level); NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req, struct tevent_req *subreq, uint32_t defer_time); struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req); size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req); void remove_smb2_chained_fsp(files_struct *fsp); NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req, uint32_t data_length); NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req, size_t expected_body_size); NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req); NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err); NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req); NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err); NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten, int err); NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_find(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req); NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req); void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx, struct tevent_immediate *im, void *private_data); /* SMB1 -> SMB2 glue. */ void send_break_message_smb2(files_struct *fsp, int level); struct blocking_lock_record *get_pending_smb2req_blr(struct smbd_smb2_request *smb2req); bool push_blocking_lock_request_smb2( struct byte_range_lock *br_lck, struct smb_request *req, files_struct *fsp, int lock_timeout, int lock_num, uint64_t smblctx, enum brl_type lock_type, enum brl_flavour lock_flav, uint64_t offset, uint64_t count, uint64_t blocking_smblctx); void process_blocking_lock_queue_smb2( struct smbd_server_connection *sconn, struct timeval tv_curr); void cancel_pending_lock_requests_by_fid_smb2(files_struct *fsp, struct byte_range_lock *br_lck, enum file_close_type close_type); /* From smbd/smb2_create.c */ int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level); bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req, struct timeval *p_request_time, void **pp_state); bool open_was_deferred_smb2(struct smbd_server_connection *sconn, uint64_t mid); void remove_deferred_open_message_smb2( struct smbd_server_connection *sconn, uint64_t mid); bool schedule_deferred_open_message_smb2( struct smbd_server_connection *sconn, uint64_t mid); bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req, struct timeval request_time, struct timeval timeout, struct file_id id, char *private_data, size_t priv_len); struct smbXsrv_connection { struct smbd_server_connection *sconn; const struct tsocket_address *local_address; const struct tsocket_address *remote_address; const char *remote_hostname; struct tevent_context *ev_ctx; struct messaging_context *msg_ctx; enum protocol_types protocol; struct { struct { uint32_t capabilities; struct GUID guid; uint16_t security_mode; uint16_t num_dialects; uint16_t *dialects; } client; struct { uint32_t capabilities; struct GUID guid; uint16_t security_mode; uint16_t dialect; uint32_t max_trans; uint32_t max_read; uint32_t max_write; } server; } smb2; struct msg_state *msg_state; /* * Link into libasys for asynchronous operations */ struct asys_context *asys_ctx; struct tevent_fd *asys_fde; uint64_t smbd_idle_profstamp; /* * this session_table is used for SMB1 and SMB2, */ struct smbXsrv_session_table *session_table; uint64_t last_session_id; /* * this tcon_table is only used for SMB1. */ struct smbXsrv_tcon_table *tcon_table; /* * this open_table is used for SMB1 and SMB2, * because we have a global sconn->real_max_open_files * limit. */ struct smbXsrv_open_table *open_table; }; NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id); uint32_t smbXsrv_version_global_current(void); NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn, enum protocol_types protocol); NTSTATUS smbXsrv_session_global_init(void); NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn, NTTIME now, struct smbXsrv_session **_session); NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session); NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session); NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_connection *conn); NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn); NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn, uint16_t vuid, NTTIME now, struct smbXsrv_session **session); NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn); NTSTATUS smb2srv_session_lookup(struct smbXsrv_connection *conn, uint64_t session_id, NTTIME now, struct smbXsrv_session **session); struct smbXsrv_session_global0; NTSTATUS smbXsrv_session_global_traverse( int (*fn)(struct smbXsrv_session_global0 *, void *), void *private_data); struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct smbXsrv_connection *conn, struct auth_session_info *session_info, uint64_t previous_session_id, uint64_t current_session_id); NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req); NTSTATUS smbXsrv_tcon_global_init(void); NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon); NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid); NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn); NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn, NTTIME now, struct smbXsrv_tcon **_tcon); NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn, uint16_t tree_id, NTTIME now, struct smbXsrv_tcon **tcon); NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_connection *conn); NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session); NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session, NTTIME now, struct smbXsrv_tcon **_tcon); NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session, uint32_t tree_id, NTTIME now, struct smbXsrv_tcon **tcon); NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session); struct smbXsrv_tcon_global0; NTSTATUS smbXsrv_tcon_global_traverse( int (*fn)(struct smbXsrv_tcon_global0 *, void *), void *private_data); NTSTATUS smbXsrv_open_global_init(void); NTSTATUS smbXsrv_open_create(struct smbXsrv_connection *conn, struct auth_session_info *session_info, NTTIME now, struct smbXsrv_open **_open); uint32_t smbXsrv_open_hash(struct smbXsrv_open *_open); NTSTATUS smbXsrv_open_update(struct smbXsrv_open *_open); NTSTATUS smbXsrv_open_close(struct smbXsrv_open *op, NTTIME now); NTSTATUS smb1srv_open_table_init(struct smbXsrv_connection *conn); NTSTATUS smb1srv_open_lookup(struct smbXsrv_connection *conn, uint16_t fnum, NTTIME now, struct smbXsrv_open **_open); NTSTATUS smb2srv_open_table_init(struct smbXsrv_connection *conn); NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn, uint64_t persistent_id, uint64_t volatile_id, NTTIME now, struct smbXsrv_open **_open); NTSTATUS smb2srv_open_recreate(struct smbXsrv_connection *conn, struct auth_session_info *session_info, uint64_t persistent_id, const struct GUID *create_guid, NTTIME now, struct smbXsrv_open **_open); struct smbXsrv_open_global0; NTSTATUS smbXsrv_open_global_traverse( int (*fn)(struct smbXsrv_open_global0 *, void *), void *private_data); NTSTATUS smbXsrv_open_cleanup(uint64_t persistent_id); struct smbd_smb2_send_queue { struct smbd_smb2_send_queue *prev, *next; DATA_BLOB *sendfile_header; struct iovec *vector; int count; TALLOC_CTX *mem_ctx; }; struct smbd_smb2_request { struct smbd_smb2_request *prev, *next; struct smbd_server_connection *sconn; struct smbd_smb2_send_queue queue_entry; /* the session the request operates on, maybe NULL */ struct smbXsrv_session *session; uint64_t last_session_id; /* the tcon the request operates on, maybe NULL */ struct smbXsrv_tcon *tcon; uint32_t last_tid; int current_idx; bool do_signing; bool do_encryption; struct tevent_timer *async_te; bool compound_related; /* * the encryption key for the whole * compound chain */ DATA_BLOB first_key; /* * the signing key for the last * request/response of a compound chain */ DATA_BLOB last_key; struct timeval request_time; /* fake smb1 request. */ struct smb_request *smb1req; struct files_struct *compat_chain_fsp; /* * The sub request for async backend calls. * This is used for SMB2 Cancel. */ struct tevent_req *subreq; #define SMBD_SMB2_TF_IOV_OFS 0 #define SMBD_SMB2_HDR_IOV_OFS 1 #define SMBD_SMB2_BODY_IOV_OFS 2 #define SMBD_SMB2_DYN_IOV_OFS 3 #define SMBD_SMB2_NUM_IOV_PER_REQ 4 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \ (&req->dir.vector[(idx)+(ofs)]) #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \ SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS) #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \ SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS) #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \ SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS) #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \ SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS) #define SMBD_SMB2_IN_TF_IOV(req) SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx) #define SMBD_SMB2_IN_TF_PTR(req) (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base) #define SMBD_SMB2_IN_HDR_IOV(req) SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx) #define SMBD_SMB2_IN_HDR_PTR(req) (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base) #define SMBD_SMB2_IN_BODY_IOV(req) SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx) #define SMBD_SMB2_IN_BODY_PTR(req) (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base) #define SMBD_SMB2_IN_BODY_LEN(req) (SMBD_SMB2_IN_BODY_IOV(req)->iov_len) #define SMBD_SMB2_IN_DYN_IOV(req) SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx) #define SMBD_SMB2_IN_DYN_PTR(req) (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base) #define SMBD_SMB2_IN_DYN_LEN(req) (SMBD_SMB2_IN_DYN_IOV(req)->iov_len) #define SMBD_SMB2_OUT_TF_IOV(req) SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx) #define SMBD_SMB2_OUT_TF_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base) #define SMBD_SMB2_OUT_HDR_IOV(req) SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx) #define SMBD_SMB2_OUT_HDR_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base) #define SMBD_SMB2_OUT_BODY_IOV(req) SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx) #define SMBD_SMB2_OUT_BODY_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base) #define SMBD_SMB2_OUT_BODY_LEN(req) (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len) #define SMBD_SMB2_OUT_DYN_IOV(req) SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx) #define SMBD_SMB2_OUT_DYN_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base) #define SMBD_SMB2_OUT_DYN_LEN(req) (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len) #define SMBD_SMB2_SHORT_RECEIVEFILE_WRITE_LEN (SMB2_HDR_BODY + 0x30) struct { /* * vector[0] TRANSPORT HEADER (empty) * . * vector[1] SMB2_TRANSFORM (optional) * vector[2] SMB2 * vector[3] fixed body * vector[4] dynamic body * . * . * . * vector[5] SMB2_TRANSFORM (optional) * vector[6] SMB2 * vector[7] fixed body * vector[8] dynamic body * . * . * . */ struct iovec *vector; int vector_count; struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ]; } in; struct { /* the NBT header is not allocated */ uint8_t nbt_hdr[4]; /* * vector[0] TRANSPORT HEADER * . * vector[1] SMB2_TRANSFORM (optional) * vector[2] SMB2 * vector[3] fixed body * vector[4] dynamic body * . * . * . * vector[5] SMB2_TRANSFORM (empty) * vector[6] SMB2 * vector[7] fixed body * vector[8] dynamic body * . * . * . */ struct iovec *vector; int vector_count; struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ]; #define OUTVEC_ALLOC_SIZE (SMB2_HDR_BODY + 9) uint8_t _hdr[OUTVEC_ALLOC_SIZE]; uint8_t _body[0x58]; } out; }; struct smbd_server_connection; struct user_struct; struct pending_message_list; struct pending_auth_data; struct user_struct { struct user_struct *next, *prev; uint64_t vuid; /* Tag for this entry. */ char *session_keystr; /* used by utmp and pam session code. TDB key string */ int homes_snum; struct auth_session_info *session_info; struct smbXsrv_session *session; }; struct smbd_server_connection { NTSTATUS status; int sock; const struct tsocket_address *local_address; const struct tsocket_address *remote_address; const char *remote_hostname; struct tevent_context *ev_ctx; struct messaging_context *msg_ctx; struct sys_notify_context *sys_notify_ctx; struct notify_context *notify_ctx; struct { bool got_session; } nbt; bool using_smb2; int trans_num; size_t num_users; struct user_struct *users; size_t num_connections; struct connection_struct *connections; size_t num_files; struct files_struct *files; int real_max_open_files; struct fsp_singleton_cache fsp_fi_cache; struct pending_message_list *deferred_open_queue; /* open directory handles. */ struct { struct bitmap *dptr_bmap; struct dptr_struct *dirptrs; int dirhandles_open; } searches; uint64_t num_requests; /* Current number of oplocks we have outstanding. */ struct { int32_t exclusive_open; int32_t level_II_open; struct kernel_oplocks *kernel_ops; } oplocks; struct { struct tevent_fd *fde; struct { /* * fd for the fcntl lock mutexing access to our sock */ int socket_lock_fd; /* * fd for the trusted pipe from * echo handler child */ int trusted_fd; /* * fde for the trusted_fd */ struct tevent_fd *trusted_fde; /* * Reference count for the fcntl lock to * allow recursive locks. */ int ref_count; } echo_handler; struct { bool encrypted_passwords; bool spnego; struct auth4_context *auth_context; bool done; /* * Size of the data we can receive. Set by us. * Can be modified by the max xmit parameter. */ int max_recv; } negprot; struct { uint16_t client_major; uint16_t client_minor; uint32_t client_cap_low; uint32_t client_cap_high; } unix_info; struct { bool done_sesssetup; /* * Size of data we can send to client. Set * by the client for all protocols above CORE. * Set by us for CORE protocol. */ int max_send; } sessions; struct smb_signing_state *signing_state; struct notify_mid_map *notify_mid_maps; struct { /* dlink list we store pending lock records on. */ struct blocking_lock_record *blocking_lock_queue; /* dlink list we move cancelled lock records onto. */ struct blocking_lock_record *blocking_lock_cancelled_queue; /* The event that makes us process our blocking lock queue */ struct tevent_timer *brl_timeout; bool blocking_lock_unlock_state; bool blocking_lock_cancel_state; } locks; } smb1; struct { struct smbd_smb2_request_read_state { struct smbd_smb2_request *req; struct { uint8_t nbt[NBT_HDR_SIZE]; bool done; } hdr; struct iovec vector; bool doing_receivefile; size_t min_recv_size; size_t pktfull; size_t pktlen; uint8_t *pktbuf; } request_read_state; struct smbd_smb2_send_queue *send_queue; size_t send_queue_len; struct tevent_fd *fde; bool negprot_2ff; struct { /* The event that makes us process our blocking lock queue */ struct tevent_timer *brl_timeout; bool blocking_lock_unlock_state; } locks; struct smbd_smb2_request *requests; /* * seqnum_low is the lowest sequence number * we will accept. */ uint64_t seqnum_low; /* * seqnum_range is the range of credits we have * granted from the sequence windows starting * at seqnum_low. * * This gets incremented when new credits are * granted and gets decremented when the * lowest sequence number is consumed * (when seqnum_low gets incremented). */ uint16_t seqnum_range; /* * credits_grantedThe number of credits we have currently granted * to the client. * * This gets incremented when new credits are * granted and gets decremented when any credit * is comsumed. * * Note: the decrementing is different compared * to seqnum_range. */ uint16_t credits_granted; /* * The maximum number of credits we will ever * grant to the client. * * Typically we will only grant 1/16th of * max_credits. * * This is the "server max credits" parameter. */ uint16_t max_credits; /* * a bitmap of size max_credits */ struct bitmap *credits_bitmap; bool supports_multicredit; uint32_t max_trans; uint32_t max_read; uint32_t max_write; } smb2; struct smbXsrv_connection *conn; }; extern struct smbXsrv_connection *global_smbXsrv_connection; void smbd_init_globals(void);