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plugin.h

#ifndef __PLUGIN_H__
#define __PLUGIN_H__

#define PLUGIN_API_VERSION    4
#define MAX_PLUGIN_TYPES      30

enum
{
      PLUGIN_PRE_AUTH = 1,
      PLUGIN_POST_AUTH,
      PLUGIN_PACKET_RX,
      PLUGIN_PACKET_TX,
      PLUGIN_TIMER,
      PLUGIN_NEW_SESSION,
      PLUGIN_KILL_SESSION,
      PLUGIN_CONTROL,
      PLUGIN_RADIUS_RESPONSE,
      PLUGIN_BECOME_MASTER,
      PLUGIN_NEW_SESSION_MASTER,
};

#define PLUGIN_RET_ERROR      0
#define PLUGIN_RET_OK         1
#define PLUGIN_RET_STOP       2 
#define PLUGIN_RET_NOTMASTER  3

struct pluginfuncs
{
      void (*log)(int level, sessionidt s, tunnelidt t, const char *format, ...);
      void (*log_hex)(int level, const char *title, const char *data, int maxsize);
      char *(*fmtaddr)(in_addr_t addr, int n);
      sessionidt (*get_session_by_username)(char *username);
      sessiont *(*get_session_by_id)(sessionidt s);
      sessionidt (*get_id_by_session)(sessiont *s);
      uint16_t (*radiusnew)(sessionidt s);
      void (*radiussend)(uint16_t r, uint8_t state);
      void *(*getconfig)(char *key, enum config_typet type);
      void (*sessionkill)(sessionidt s, char *reason);
      void (*throttle)(sessionidt s, int rate_in, int rate_out);
      int (*session_changed)(int sid);
};

struct param_pre_auth
{
      tunnelt *t;
      sessiont *s;
      char *username;
      char *password;
      int protocol;
      int continue_auth;
};

struct param_post_auth
{
      tunnelt *t;
      sessiont *s;
      char *username;
      short auth_allowed;
      int protocol;
};

struct param_packet_rx
{
      tunnelt *t;
      sessiont *s;
      char *buf;
      int len;
};

struct param_packet_tx
{
      tunnelt *t;
      sessiont *s;
      char *buf;
      int len;
};

struct param_timer
{
      time_t time_now;
};

struct param_control
{
      int iam_master;
      int argc;
      char **argv;
      // output
      int response;
      char *additional;
};

struct param_new_session
{
      tunnelt *t;
      sessiont *s;
};

struct param_kill_session
{
      tunnelt *t;
      sessiont *s;
};

struct param_radius_response
{
      tunnelt *t;
      sessiont *s;
      char *key;
      char *value;
};

#endif /* __PLUGIN_H__ */

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