/* $Id: commonrdr.h,v 1.10 2016/02/12 12:34:39 nanard Exp $ */ /* MiniUPnP project * (c) 2006-2016 Thomas Bernard * http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/ * This software is subject to the conditions detailed * in the LICENCE file provided within the distribution */ #ifndef COMMONRDR_H_INCLUDED #define COMMONRDR_H_INCLUDED #include "config.h" /* init and shutdown functions */ /* init_redirect() return values : * 0 : OK * -1 : error */ int init_redirect(void); void shutdown_redirect(void); /* get_redirect_rule() gets internal IP and port from * interface, external port and protocol * return value : * 0 success (rule found) * -1 error or rule not found */ int get_redirect_rule(const char * ifname, unsigned short eport, int proto, char * iaddr, int iaddrlen, unsigned short * iport, char * desc, int desclen, char * rhost, int rhostlen, unsigned int * timestamp, u_int64_t * packets, u_int64_t * bytes); /* get_redirect_rule_by_index() * return values : * 0 success (rule found) * -1 error or rule not found */ int get_redirect_rule_by_index(int index, char * ifname, unsigned short * eport, char * iaddr, int iaddrlen, unsigned short * iport, int * proto, char * desc, int desclen, char * rhost, int rhostlen, unsigned int * timestamp, u_int64_t * packets, u_int64_t * bytes); /* return an (malloc'ed) array of "external" port for which there is * a port mapping. number is the size of the array */ unsigned short * get_portmappings_in_range(unsigned short startport, unsigned short endport, int proto, unsigned int * number); /* update the port mapping internal port, decription and timestamp */ int update_portmapping(const char * ifname, unsigned short eport, int proto, unsigned short iport, const char * desc, unsigned int timestamp); /* update the port mapping decription and timestamp */ int update_portmapping_desc_timestamp(const char * ifname, unsigned short eport, int proto, const char * desc, unsigned int timestamp); #ifdef USE_NFTABLES /* * only provided by nftables implementation at the moment. * Should be implemented for iptables too, for consistency */ typedef enum { RDR_TABLE_NAME, RDR_NAT_PREROUTING_CHAIN_NAME, RDR_NAT_POSTROUTING_CHAIN_NAME, RDR_FORWARD_CHAIN_NAME, } rdr_name_type; /* * used by the config file parsing in the core * to set */ int set_rdr_name( rdr_name_type param, const char * string ); #endif #endif