File: plugin.h

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#ifndef __PLUGIN_H__
#define __PLUGIN_H__

#define PLUGIN_API_VERSION	7
#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_RADIUS_RESET,
    PLUGIN_RADIUS_ACCOUNT,
    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 uint8_t *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 (*sessionshutdown)(sessionidt s, char const *reason, int result, int error, int term_cause);
    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;
};

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

struct param_radius_account
{
    tunnelt *t;
    sessiont *s;
    uint8_t **packet;
};

#endif /* __PLUGIN_H__ */