source3/smbd/globals.h

   1 /*
   2    Unix SMB/Netbios implementation.
   3    smbd globals
   4    Copyright (C) Stefan Metzmacher 2009
   5
   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.
  10
  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.
  15
  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/>.
  18 */
  19
  20 #if defined(WITH_AIO)
  21 struct aio_extra;
  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;
  26 #endif
  27
  28 /* dlink list we store pending lock records on. */
  29 extern struct blocking_lock_record *blocking_lock_queue;
  30
  31 /* dlink list we move cancelled lock records onto. */
  32 extern struct blocking_lock_record *blocking_lock_cancelled_queue;
  33
  34 /* The event that makes us process our blocking lock queue */
  35 extern struct timed_event *brl_timeout;
  36
  37 extern bool blocking_lock_unlock_state;
  38 extern bool blocking_lock_cancel_state;
  39
  40 #ifdef USE_DMAPI
  41 struct smbd_dmapi_context;
  42 extern struct smbd_dmapi_context *dmapi_ctx;
  43 #endif
  44
  45 extern connection_struct *Connections;
  46 /* number of open connections */
  47 extern struct bitmap *bmap;
  48 extern int num_open;
  49
  50 extern bool dfree_broken;
  51
  52 extern struct bitmap *dptr_bmap;
  53 //struct dptr_struct;
  54 extern struct dptr_struct *dirptrs;
  55 extern int dirhandles_open;
  56
  57 /* how many write cache buffers have been allocated */
  58 extern unsigned int allocated_write_caches;
  59
  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 {
  66         files_struct *fsp;
  67         struct file_id id;
  68 };
  69 extern struct fsp_singleton_cache fsp_fi_cache;
  70 extern unsigned long file_gen_counter;
  71 extern int first_file;
  72
  73 extern const struct mangle_fns *mangle_fns;
  74
  75 extern unsigned char *chartest;
  76 extern TDB_CONTEXT *tdb_mangled_cache;
  77
  78 /* these tables are used to provide fast tests for characters */
  79 extern unsigned char char_flags[256];
  80 /*
  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.
  84 */
  85 extern unsigned mangle_prefix;
  86 extern unsigned char base_reverse[256];
  87
  88 extern char *last_from;
  89 extern char *last_to;
  90
  91 struct msg_state;
  92 extern struct msg_state *smbd_msg_state;
  93
  94 extern bool global_encrypted_passwords_negotiated;
  95 extern bool global_spnego_negotiated;
  96 extern struct auth_context *negprot_global_auth_context;
  97 extern bool done_negprot;
  98
  99 extern bool logged_ioctl_message;
 100
 101 /* users from session setup */
 102 extern char *session_userlist;
 103 /* workgroup from session setup. */
 104 extern char *session_workgroup;
 105 /* this holds info on user ids that are already validated for this VC */
 106 extern user_struct *validated_users;
 107 extern uint16_t next_vuid;
 108 extern int num_validated_vuids;
 109 #ifdef HAVE_NETGROUP
 110 extern char *my_yp_domain;
 111 #endif
 112
 113 extern bool already_got_session;
 114
 115 /*
 116  * Size of data we can send to client. Set
 117  *  by the client for all protocols above CORE.
 118  *  Set by us for CORE protocol.
 119  */
 120 extern int max_send;
 121 /*
 122  * Size of the data we can receive. Set by us.
 123  * Can be modified by the max xmit parameter.
 124  */
 125 extern int max_recv;
 126 extern uint16 last_session_tag;
 127 extern int trans_num;
 128 extern char *orig_inbuf;
 129
 130 extern pid_t mypid;
 131 extern time_t last_smb_conf_reload_time;
 132 extern time_t last_printer_reload_time;
 133 /****************************************************************************
 134  structure to hold a linked list of queued messages.
 135  for processing.
 136 ****************************************************************************/
 137 struct pending_message_list;
 138 extern struct pending_message_list *deferred_open_queue;
 139 extern uint32_t common_flags2;
 140
 141 struct smb_srv_trans_enc_ctx;
 142 extern struct smb_srv_trans_enc_ctx *partial_srv_trans_enc_ctx;
 143 extern struct smb_srv_trans_enc_ctx *srv_trans_enc_ctx;
 144
 145 struct sec_ctx {
 146         UNIX_USER_TOKEN ut;
 147         NT_USER_TOKEN *token;
 148 };
 149 /* A stack of security contexts.  We include the current context as being
 150    the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
 151 extern struct sec_ctx sec_ctx_stack[MAX_SEC_CTX_DEPTH + 1];
 152 extern int sec_ctx_stack_ndx;
 153 extern bool become_uid_done;
 154 extern bool become_gid_done;
 155
 156 extern connection_struct *last_conn;
 157 extern uint16_t last_flags;
 158
 159 extern struct db_context *session_db_ctx_ptr;
 160
 161 extern uint32_t global_client_caps;
 162 extern bool done_sesssetup;
 163 /****************************************************************************
 164  List to store partial SPNEGO auth fragments.
 165 ****************************************************************************/
 166 struct pending_auth_data;
 167 extern struct pending_auth_data *pd_list;
 168
 169 extern uint16_t fnf_handle;
 170
 171 struct conn_ctx {
 172         connection_struct *conn;
 173         uint16 vuid;
 174 };
 175 /* A stack of current_user connection contexts. */
 176 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
 177 extern int conn_ctx_stack_ndx;
 178
 179 struct vfs_init_function_entry;
 180 extern struct vfs_init_function_entry *backends;
 181 extern char *sparse_buf;
 182 extern char *LastDir;
 183
 184 /* Current number of oplocks we have outstanding. */
 185 extern int32_t exclusive_oplocks_open;
 186 extern int32_t level_II_oplocks_open;
 187 extern bool global_client_failed_oplock_break;
 188 extern struct kernel_oplocks *koplocks;
 189
 190 extern struct notify_mid_map *notify_changes_by_mid;
 191
 192 extern int am_parent;
 193 extern int server_fd;
 194 extern struct event_context *smbd_event_ctx;
 195 extern struct messaging_context *smbd_msg_ctx;
 196 extern struct memcache *smbd_memcache_ctx;
 197 extern bool exit_firsttime;
 198 struct child_pid;
 199 extern struct child_pid *children;
 200 extern int num_children;
 201
 202 struct smbd_server_connection {
 203         struct fd_event *fde;
 204         uint64_t num_requests;
 205 };
 206 extern struct smbd_server_connection *smbd_server_conn;
 207
 208 void smbd_init_globals(void);