nterface/nterfacer.h

   1 /*
   2   nterfacer
   3   Copyright (C) 2004 Chris Porter.
   4 */
   5
   6 #ifndef __nterfacer_H
   7 #define __nterfacer_H
   8
   9 #include <sys/types.h>
  10 #include <netinet/in.h>
  11
  12 #include "esockets.h"
  13 #include "library.h"
  14
  15 #define BF_OK      0x00
  16 #define BF_OVER    0xFF
  17
  18 #define SS_IDLE           0x00
  19 #define SS_VERSIONED      0x01
  20 #define SS_AUTHENTICATED  0x02
  21
  22 #define NTERFACER_PORT    2438
  23
  24 #define MAX_ARGS 100
  25
  26 #define PROTOCOL_VERSION "2"
  27 #define ANTI_FULL_VERSION "service_link " PROTOCOL_VERSION
  28
  29 struct rline;
  30
  31 typedef int (*handler_function)(struct rline *ri, int argc, char **argv);
  32
  33 typedef struct handler {
  34   sstring *command;
  35   int args; /* MINIMUM ARGUMENTS */
  36   handler_function function;
  37   struct handler *next;
  38   void *service;
  39 } handler;
  40
  41 typedef struct service_node {
  42   sstring *name;
  43   struct handler *handlers;
  44   struct service_node *next;
  45 } service_node;
  46
  47 typedef struct rline {
  48   struct handler *handler;
  49   int id;
  50   struct service_node *service;
  51   char buf[MAX_BUFSIZE];
  52   char *curpos;
  53   struct rline *next;
  54   void *tag;
  55   struct esocket *socket;
  56 } rline;
  57
  58 typedef struct permitted {
  59   sstring *hostname;
  60   sstring *password;
  61   in_addr_t ihost;
  62 } permitted;
  63
  64 typedef struct sconnect {
  65   int status;
  66   char response[20 * 2 + 1]; /* could store this in binary form but I really can't be assed */
  67   struct permitted *permit;
  68   unsigned char ournonce[NONCE_LEN];
  69 } sconnect;
  70
  71 extern struct nterface_auto_log *nrl;
  72
  73 int accept_fd = -1;
  74 struct permitted *permits;
  75 int permit_count = 0;
  76
  77 struct service_node *register_service(char *name);
  78 struct handler *register_handler(struct service_node *service, char *command, int args, handler_function fp);
  79 void deregister_service(struct service_node *service);
  80 void deregister_handler(struct handler *hp);
  81 int respond(struct rline *li, int argc, ...);
  82 int error_respond(struct rline *li, int error_code, char *format, ...);
  83
  84 int ri_append(struct rline *li, char *format, ...);
  85 int ri_error(struct rline *li, int error_code, char *format, ...);
  86 int ri_final(struct rline *li);
  87
  88 int load_permits(void);
  89 int setup_listening_socket(void);
  90
  91 void nterfacer_accept_event(struct esocket *socket);
  92 void nterfacer_disconnect_event(struct esocket *socket);
  93 int nterfacer_line_event(struct esocket *socket, char *newline);
  94 int nterfacer_new_rline(char *line, struct esocket *socket, int *number);
  95 struct sconnect *find_sconnect_from_fd(int fd);
  96
  97 #endif
  98