netlink.h

#ifndef NETLINK_H
#define NETLINK_H

#include <linux/socket.h>

// Attributes
enum {
        SSA_NL_A_UNSPEC,
	SSA_NL_A_ID,
	SSA_NL_A_BLOCKING,
	SSA_NL_A_COMM,
	SSA_NL_A_SOCKADDR_INTERNAL,
	SSA_NL_A_SOCKADDR_EXTERNAL,
	SSA_NL_A_SOCKADDR_REMOTE,
	SSA_NL_A_OPTLEVEL,
	SSA_NL_A_OPTNAME,
	SSA_NL_A_OPTVAL,
	SSA_NL_A_RETURN,
        SSA_NL_A_PAD,
        __SSA_NL_A_MAX,
};

#define SSA_NL_A_MAX (__SSA_NL_A_MAX - 1)

// Operations
enum {
        SSA_NL_C_UNSPEC,
        SSA_NL_C_SOCKET_NOTIFY,
	SSA_NL_C_SETSOCKOPT_NOTIFY,
	SSA_NL_C_GETSOCKOPT_NOTIFY,
        SSA_NL_C_BIND_NOTIFY,
        SSA_NL_C_CONNECT_NOTIFY,
        SSA_NL_C_LISTEN_NOTIFY,
	SSA_NL_C_ACCEPT_NOTIFY,
	SSA_NL_C_CLOSE_NOTIFY,
	SSA_NL_C_RETURN,
	SSA_NL_C_DATA_RETURN,
	SSA_NL_C_HANDSHAKE_RETURN,
        __SSA_NL_C_MAX,
};

#define SSA_NL_C_MAX (__SSA_NL_C_MAX - 1)

// Multicast group
enum ssa_nl_groups {
        SSA_NL_NOTIFY,
};


int register_netlink(void);
int send_socket_notification(unsigned long id, char* comm, int port_id);
int send_setsockopt_notification(unsigned long id, int level, int optname, void* optval, int optlen, int port_id);
int send_getsockopt_notification(unsigned long id, int level, int optname, int port_id);
int send_bind_notification(unsigned long id, struct sockaddr* int_addr, struct sockaddr* ext_addr, int port_id);
int send_connect_notification(unsigned long id, struct sockaddr* int_addr, struct sockaddr* rem_addr, int blocking, int port_id);
int send_listen_notification(unsigned long id, struct sockaddr* int_addr, struct sockaddr* ext_addr, int port_id);
int send_accept_notification(unsigned long id, struct sockaddr* int_addr, int port_id);
int send_close_notification(unsigned long id, int port_id);
void unregister_netlink(void);

#endif