workbench/network/stacks/AROSTCP/bsdsocket/kern/amiga_netdb.h

   1 /*
   2  * Copyright (C) 1993 AmiTCP/IP Group, <amitcp-group@hut.fi>
   3  *                    Helsinki University of Technology, Finland.
   4  *                    All rights reserved.
   5  * Copyright (C) 2005 Neil Cafferkey
   6  * Copyright (C) 2005 Pavel Fedin
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  20  * MA 02111-1307, USA.
  21  *
  22  */
  23
  24 #ifndef AMIGA_NETDB_H
  25 #define AMIGA_NETDB_H
  26
  27 #ifndef NETDB_H
  28 #include <netdb.h>
  29 #endif
  30
  31 #include "net/netdbpaths.h"
  32
  33 #ifndef IN_H
  34 #include <netinet/in.h>
  35 #endif
  36
  37 /* Access control table item */
  38 struct AccessItem {
  39   UWORD ai_flags;
  40   UWORD ai_port;
  41   ULONG ai_host;
  42   ULONG ai_mask;
  43 };
  44
  45 /* Access control flags */
  46 #define ACF_ALLOW       0x01
  47 #define ACF_LOG         0x02
  48 #define ACF_PRIVONLY    0x04 /* 0 as port matches for privileged ports only */
  49 #define ACF_CONTINUE    (1 << 15)
  50
  51 /* AC table temporary buffer size */
  52 #define TMPACTSIZE      0x4000
  53
  54 /* NetDataBase */
  55 struct NetDataBase {
  56   struct MinList         ndb_Hosts;
  57   struct MinList         ndb_Networks;
  58   struct MinList         ndb_Services;
  59   struct MinList         ndb_Protocols;
  60   struct MinList         ndb_NameServers;
  61   struct MinList         ndb_Rc;
  62   struct MinList         ndb_Domains;
  63   LONG                   ndb_AccessCount; /* tmp var, but reduces code size */
  64   struct AccessItem *    ndb_AccessTable;
  65 };
  66
  67 extern struct NetDataBase *NDB;
  68 extern struct SignalSemaphore ndb_Lock;
  69 extern struct DynDataBase DynDB;
  70 extern ULONG ndb_Serial;
  71
  72 /* Locking macros for NDB */
  73 #define LOCK_W_NDB(ndb) (ObtainSemaphore(&ndb_Lock))
  74 #define LOCK_R_NDB(ndb) (ObtainSemaphoreShared(&ndb_Lock))
  75 #define UNLOCK_NDB(ndb) (ReleaseSemaphore(&ndb_Lock))
  76 #define ATTEMPT_NDB(ndb) (AttemptSemaphore(&ndb_Lock))
  77
  78 /* Dynamic part of the NetDB */
  79 struct DynDataBase {
  80   struct SignalSemaphore dyn_Lock;
  81   struct MinList         dyn_NameServers;
  82   struct MinList         dyn_Domains;
  83 };
  84
  85 /*
  86  * GenEnt has the common part of all NetDataBase Nodes
  87  */
  88 struct GenentNode {
  89   struct MinNode gn_Node;
  90   short          gn_EntSize;
  91   struct {
  92     char *dummy[0];
  93   }              gn_Ent;
  94 };
  95
  96 /* NetDatabase nodes */
  97 struct NameserventNode {
  98   struct MinNode  nsn_Node;
  99   short           nsn_EntSize;
 100   struct nameservent {
 101     struct in_addr ns_addr;
 102   } nsn_Ent;
 103 };
 104
 105 struct DomainentNode {
 106   struct MinNode  dn_Node;
 107   short           dn_EntSize;
 108   struct domainent {
 109     char *d_name;
 110   } dn_Ent;
 111 };
 112
 113 /* NetDataBase Nodes */
 114 struct HostentNode {
 115   struct MinNode hn_Node;
 116   short          hn_EntSize;
 117   struct hostent hn_Ent;
 118 };
 119
 120 struct NetentNode {
 121   struct MinNode nn_Node;
 122   short          nn_EntSize;
 123   struct netent  nn_Ent;
 124 };
 125
 126 struct ServentNode {
 127   struct MinNode  sn_Node;
 128   short           sn_EntSize;
 129   struct servent  sn_Ent;
 130 };
 131
 132 struct ProtoentNode {
 133   struct MinNode  pn_Node;
 134   short           pn_EntSize;
 135   struct protoent pn_Ent;
 136 };
 137
 138 struct RcentNode {
 139   struct MinNode  rn_Node;
 140   short           rn_EntSize;
 141   char *          rn_Ent;
 142 };
 143
 144 /*
 145  * netdatabase calls for some AmiTCP/IP functions
 146  */
 147 struct ServentNode * findServentNode(struct NetDataBase * ndb,
 148                                      const char * name, const char * proto);
 149
 150 /*
 151  * Read NetDB...
 152  */
 153 LONG do_netdb(struct CSource *cs, UBYTE **errstrp, struct CSource *res);
 154 LONG reset_netdb(struct CSource *cs, UBYTE **errstrp, struct CSource *res);
 155 LONG init_netdb(void);
 156 void netdb_deinit(void);
 157
 158 #endif /* AMIGA_NETDB_H */