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/*! \file
* Main functions to set-up dpi information and to initialise sockets
*/
#ifndef DPID_H
#define DPID_H
#include <sys/socket.h>
#include <sys/select.h> /* for fd_set */
#include <sys/un.h>
#include <signal.h> /* for sig_atomic_t */
#include <netinet/in.h> /* for ntohl, IPPORT_USERRESERVED and stuff */
#include "d_size.h"
/* FreeBSD 6.4 doesn't have it */
#ifndef IPPORT_USERRESERVED
#define IPPORT_USERRESERVED 5000
#endif
#define PATH_LEN 50
#define CMDLEN 20
#define MSGLEN 50
#define DPID_BASE_PORT (IPPORT_USERRESERVED + 20)
/*! \TODO: Should read this from dillorc */
#define SRS_NAME "dpid.srs"
extern char *srs_name;
/*! dpid's service request socket file descriptor */
extern int srs_fd;
/*! plugin state information
*/
struct dp {
char *id;
char *path;
int sock_fd;
int port;
pid_t pid;
int filter;
};
/*! bind dpi with service
*/
struct service {
char *name;
int dp_index;
};
/*! Number of available plugins */
extern int numdpis;
/*! Number of sockets being watched */
extern int numsocks;
/*! State information for each plugin. */
extern struct dp *dpi_attr_list;
/*! service served for each plugin */
extern Dlist *services_list;
/*! Set of sockets watched for connections */
extern fd_set sock_set;
/*! Set to 1 by the SIGCHLD handler dpi_sigchld */
extern volatile sig_atomic_t caught_sigchld;
void rm_dpi_sockets(struct dp *dpi_attr_list, int numdpis);
void cleanup();
void free_dpi_attr(struct dp *dpi_attr);
void free_plugin_list(struct dp **dpi_attr_list_ptr, int numdpis);
void free_services_list(Dlist *s_list);
enum file_type get_file_type(char *file_name);
int get_dpi_attr(char *dpi_dir, char *service, struct dp *dpi_attr);
int register_service(struct dp *dpi_attr, char *service);
int register_all(struct dp **attlist);
int fill_services_list(struct dp *attlist, int numdpis, Dlist **services_list);
int init_ids_srs_socket();
int init_dpi_socket(struct dp *dpi_attr);
int init_all_dpi_sockets(struct dp *dpi_attr_list);
void dpi_sigchld(int sig);
void handle_sigchld(void);
void est_dpi_sigchld(void);
void est_dpi_terminator(void);
void stop_active_dpis(struct dp *dpi_attr_list, int numdpis);
void ignore_dpi_sockets(struct dp *dpi_attr_list, int numdpis);
int register_all_cmd();
char *get_message(int sock, char *dpi_tag);
int service_match(const struct service *A, const char *B);
void send_sockport(int sock_fd, char * dpi_tag, struct dp *dpi_attr_list);
#endif
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