nterfacer/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 "../lib/sstring.h"
  13
  14 #include "esockets.h"
  15 #include "library.h"
  16
  17 #define BF_OK      0x00
  18 #define BF_OVER    0xFF
  19 #define BF_UNLOADED 0xFE
  20
  21 #define SS_IDLE           0x00
  22 #define SS_VERSIONED      0x01
  23 #define SS_AUTHENTICATED  0x02
  24
  25 #define NTERFACER_PORT    2438
  26
  27 #define MAX_ARGS 100
  28
  29 #define PROTOCOL_VERSION "4"
  30 #define ANTI_FULL_VERSION "service_link " PROTOCOL_VERSION
  31
  32 struct rline;
  33
  34 typedef int (*handler_function)(struct rline *ri, int argc, char **argv);
  35 typedef void (*rline_callback)(int failed, int linec, char **linev, void *tag);
  36
  37 typedef struct handler {
  38   sstring *command;
  39   int args; /* MINIMUM ARGUMENTS */
  40   handler_function function;
  41   struct handler *next;
  42   void *service;
  43 } handler;
  44
  45 typedef struct service_node {
  46   sstring *name;
  47   struct handler *handlers;
  48   struct service_node *next;
  49 } service_node;
  50
  51 typedef struct rline {
  52   struct handler *handler;
  53   int id;
  54   struct service_node *service;
  55   char buf[MAX_BUFSIZE];
  56   char *curpos;
  57   struct rline *next;
  58   void *tag;
  59   rline_callback callback;
  60   struct esocket *socket;
  61 } rline;
  62
  63 typedef struct permitted {
  64   sstring *hostname;
  65   sstring *password;
  66   in_addr_t ihost;
  67 } permitted;
  68
  69 typedef struct sconnect {
  70   int status;
  71   char response[32 * 2 + 1], challenge[32 * 2 + 1];
  72   unsigned char iv[16];
  73   struct permitted *permit;
  74   unsigned char ournonce[16];
  75 } sconnect;
  76
  77 extern struct nterface_auto_log *nrl;
  78
  79 struct service_node *register_service(char *name);
  80 struct handler *register_handler(struct service_node *service, char *command, int args, handler_function fp);
  81 void deregister_service(struct service_node *service);
  82 void deregister_handler(struct handler *hp);
  83 int respond(struct rline *li, int argc, ...);
  84 int error_respond(struct rline *li, int error_code, char *format, ...);
  85
  86 int ri_append(struct rline *li, char *format, ...) __attribute__ ((format (printf, 2, 3)));
  87 int ri_error(struct rline *li, int error_code, char *format, ...) __attribute__ ((format (printf, 3, 4)));
  88 int ri_final(struct rline *li);
  89
  90 int load_permits(void);
  91 int setup_listening_socket(void);
  92
  93 void nterfacer_accept_event(struct esocket *socket);
  94 void nterfacer_disconnect_event(struct esocket *socket);
  95 int nterfacer_line_event(struct esocket *socket, char *newline);
  96 int nterfacer_new_rline(char *line, struct esocket *socket, int *number);
  97 struct sconnect *find_sconnect_from_fd(int fd);
  98
  99 void *nterfacer_sendline(char *service, char *command, int argc, char **argv, rline_callback callback, void *tag);
 100 void nterfacer_freeline(void *arg);
 101
 102 #endif