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#ifndef LIBOPM_H
#define LIBOPM_H
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "config.h"
#include "opm_common.h"
#include "opm.h"
#define CBLEN 5 /* Number of callback functions */
#define READBUFLEN 128 /* Size of conn->readbuf */
#define SENDBUFLEN 512 /* Size of sendbuffer in proxy.c */
#define LIBOPM_TLS_RECORD_SIZE 16384
typedef struct _OPM_SCAN OPM_SCAN_T;
typedef struct _OPM_CONNECTION OPM_CONNECTION_T;
typedef struct _OPM_PROTOCOL_CONFIG OPM_PROTOCOL_CONFIG_T;
typedef struct _OPM_PROTOCOL OPM_PROTOCOL_T;
/*
* Types of hard coded proxy READ/WRITE functions which are
* setup in a table in libopm.c
*/
typedef int OPM_PROXYWRITE_T (OPM_T *, OPM_SCAN_T *, OPM_CONNECTION_T *);
typedef int OPM_PROXYREAD_T (OPM_T *, OPM_SCAN_T *, OPM_CONNECTION_T *);
struct _OPM_SCAN
{
struct sockaddr_in addr; /* Address in byte order of remote client */
OPM_REMOTE_T *remote; /* Pointed to the OPM_REMOTE_T for this scan, passed by client */
OPM_LIST_T connections; /* List of individual connections of this scan (1 for each protocol) */
};
struct _OPM_CONNECTION
{
OPM_PROTOCOL_T *protocol; /* Pointer to specific protocol this connection handles */
unsigned short int port; /* Some protocols have multiple ports, eg. HTTP */
int fd; /* Allocated file descriptor, 0 if not yet allocated */
unsigned short int bytes_read; /* Bytes read so far in this connection */
char readbuf[READBUFLEN + 1]; /* 128 byte read buffer, anything over 128 is probably not of use */
unsigned short int readlen; /* Length of readbuf */
unsigned short int state; /* State of connection */
time_t creation; /* When this connection was established */
void *tls_handle; /* SSL structure created by SSL_new() */
};
struct _OPM_PROTOCOL_CONFIG
{
OPM_PROTOCOL_T *type; /* Protocol type */
unsigned short int port; /* Port to connect on */
};
struct _OPM_PROTOCOL
{
int type; /* Protocol type */
OPM_PROXYWRITE_T *write_function; /* Write function handler for this protocol */
OPM_PROXYREAD_T *read_function; /* Read function handler for this protocol */
int use_tls; /* TLS/SSL-enabled protocol such as HTTPS */
};
#endif /* LIBOPM_H */
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