2 Unix SMB/Netbios implementation.
4 Copyright (C) Stefan Metzmacher 2009
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 extern struct aio_extra *aio_list_head;
23 extern struct tevent_signal *aio_signal_event;
24 extern int aio_pending_size;
25 extern int outstanding_aio_calls;
28 /* dlink list we store pending lock records on. */
29 extern struct blocking_lock_record *blocking_lock_queue;
31 /* dlink list we move cancelled lock records onto. */
32 extern struct blocking_lock_record *blocking_lock_cancelled_queue;
34 /* The event that makes us process our blocking lock queue */
35 extern struct timed_event *brl_timeout;
37 extern bool blocking_lock_unlock_state;
38 extern bool blocking_lock_cancel_state;
41 struct smbd_dmapi_context;
42 extern struct smbd_dmapi_context *dmapi_ctx;
45 extern connection_struct *Connections;
46 /* number of open connections */
47 extern struct bitmap *bmap;
50 extern bool dfree_broken;
52 extern struct bitmap *dptr_bmap;
54 extern struct dptr_struct *dirptrs;
55 extern int dirhandles_open;
57 /* how many write cache buffers have been allocated */
58 extern unsigned int allocated_write_caches;
60 extern int real_max_open_files;
61 extern struct bitmap *file_bmap;
62 extern files_struct *Files;
63 extern int files_used;
64 /* A singleton cache to speed up searching by dev/inode. */
65 struct fsp_singleton_cache {
69 extern struct fsp_singleton_cache fsp_fi_cache;
70 extern unsigned long file_gen_counter;
71 extern int first_file;
73 extern const struct mangle_fns *mangle_fns;
75 extern unsigned char *chartest;
76 extern TDB_CONTEXT *tdb_mangled_cache;
78 /* these tables are used to provide fast tests for characters */
79 extern unsigned char char_flags[256];
81 this determines how many characters are used from the original filename
82 in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
83 The largest possible value is 6.
85 extern unsigned mangle_prefix;
86 extern unsigned char base_reverse[256];
88 extern char *last_from;
92 extern struct msg_state *smbd_msg_state;
94 extern bool logged_ioctl_message;
99 extern time_t last_smb_conf_reload_time;
100 extern time_t last_printer_reload_time;
101 /****************************************************************************
102 structure to hold a linked list of queued messages.
104 ****************************************************************************/
105 struct pending_message_list;
106 extern struct pending_message_list *deferred_open_queue;
107 extern uint32_t common_flags2;
109 struct smb_srv_trans_enc_ctx;
110 extern struct smb_srv_trans_enc_ctx *partial_srv_trans_enc_ctx;
111 extern struct smb_srv_trans_enc_ctx *srv_trans_enc_ctx;
115 NT_USER_TOKEN *token;
117 /* A stack of security contexts. We include the current context as being
118 the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
119 extern struct sec_ctx sec_ctx_stack[MAX_SEC_CTX_DEPTH + 1];
120 extern int sec_ctx_stack_ndx;
121 extern bool become_uid_done;
122 extern bool become_gid_done;
124 extern connection_struct *last_conn;
125 extern uint16_t last_flags;
127 extern struct db_context *session_db_ctx_ptr;
129 extern uint32_t global_client_caps;
131 extern uint16_t fnf_handle;
134 connection_struct *conn;
137 /* A stack of current_user connection contexts. */
138 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
139 extern int conn_ctx_stack_ndx;
141 struct vfs_init_function_entry;
142 extern struct vfs_init_function_entry *backends;
143 extern char *sparse_buf;
144 extern char *LastDir;
146 /* Current number of oplocks we have outstanding. */
147 extern int32_t exclusive_oplocks_open;
148 extern int32_t level_II_oplocks_open;
149 extern bool global_client_failed_oplock_break;
150 extern struct kernel_oplocks *koplocks;
152 extern struct notify_mid_map *notify_changes_by_mid;
154 extern int am_parent;
155 extern int server_fd;
156 extern struct event_context *smbd_event_ctx;
157 extern struct messaging_context *smbd_msg_ctx;
158 extern struct memcache *smbd_memcache_ctx;
159 extern bool exit_firsttime;
161 extern struct child_pid *children;
162 extern int num_children;
164 struct tstream_context;
165 struct smbd_smb2_request;
166 struct smbd_smb2_session;
167 struct smbd_smb2_tcon;
169 DATA_BLOB negprot_spnego(void);
171 NTSTATUS smb2_signing_sign_pdu(DATA_BLOB session_key,
172 struct iovec *vector,
174 NTSTATUS smb2_signing_check_pdu(DATA_BLOB session_key,
175 const struct iovec *vector,
178 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
180 void reply_smb2002(struct smb_request *req, uint16_t choice);
181 void smbd_smb2_first_negprot(struct smbd_server_connection *conn,
182 const uint8_t *inbuf, size_t size);
184 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
185 NTSTATUS status, DATA_BLOB *info);
186 NTSTATUS smbd_smb2_request_error(struct smbd_smb2_request *req,
188 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
190 DATA_BLOB body, DATA_BLOB *dyn);
191 NTSTATUS smbd_smb2_request_done(struct smbd_smb2_request *req,
192 DATA_BLOB body, DATA_BLOB *dyn);
194 NTSTATUS smbd_smb2_request_check_session(struct smbd_smb2_request *req);
195 NTSTATUS smbd_smb2_request_check_tcon(struct smbd_smb2_request *req);
197 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
198 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
199 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
200 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
201 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
202 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
204 struct smbd_smb2_request {
205 TALLOC_CTX *mem_pool;
207 struct smbd_server_connection *conn;
209 /* the session the request operates on, maybe NULL */
210 struct smbd_smb2_session *session;
212 /* the tcon the request operates on, maybe NULL */
213 struct smbd_smb2_tcon *tcon;
219 /* the NBT header is not allocated */
225 * vector[2] fixed body
226 * vector[3] dynamic body
231 * vector[5] fixed body
232 * vector[6] dynamic body
237 struct iovec *vector;
241 /* the NBT header is not allocated */
247 * vector[2] fixed body
248 * vector[3] dynamic body
253 * vector[5] fixed body
254 * vector[6] dynamic body
259 struct iovec *vector;
264 struct smbd_server_connection;
266 struct smbd_smb2_session {
267 struct smbd_smb2_session *prev, *next;
268 struct smbd_server_connection *conn;
271 AUTH_NTLMSSP_STATE *auth_ntlmssp_state;
272 struct auth_serversupplied_info *server_info;
273 DATA_BLOB session_key;
277 /* an id tree used to allocate tids */
278 struct idr_context *idtree;
280 /* this is the limit of tid values for this connection */
283 struct smbd_smb2_tcon *list;
287 struct smbd_smb2_tcon {
288 struct smbd_smb2_tcon *prev, *next;
289 struct smbd_smb2_session *session;
294 struct pending_auth_data;
296 struct smbd_server_connection {
302 struct fd_event *fde;
303 uint64_t num_requests;
305 bool encrypted_passwords;
307 struct auth_context *auth_context;
310 * Size of the data we can receive. Set by us.
311 * Can be modified by the max xmit parameter.
319 * Size of data we can send to client. Set
320 * by the client for all protocols above CORE.
321 * Set by us for CORE protocol.
324 uint16_t last_session_tag;
326 /* users from session setup */
327 char *session_userlist;
328 /* workgroup from session setup. */
329 char *session_workgroup;
331 * this holds info on user ids that are already
332 * validated for this VC
334 user_struct *validated_users;
336 int num_validated_vuids;
341 struct smb_signing_state *signing_state;
342 /* List to store partial SPNEGO auth fragments. */
343 struct pending_auth_data *pd_list;
346 struct tevent_context *event_ctx;
347 struct tevent_queue *recv_queue;
348 struct tevent_queue *send_queue;
349 struct tstream_context *stream;
351 /* an id tree used to allocate vuids */
352 /* this holds info on session vuids that are already
353 * validated for this VC */
354 struct idr_context *idtree;
356 /* this is the limit of vuid values for this connection */
359 struct smbd_smb2_session *list;
364 extern struct smbd_server_connection *smbd_server_conn;
366 void smbd_init_globals(void);