tap-iax2-analysis.h

Go to the documentation of this file.

 
#ifndef __TAP_IAX2_ANALYSIS_H__
#define __TAP_IAX2_ANALYSIS_H__
 
#include <epan/address.h>
#include <epan/packet_info.h>
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
/****************************************************************************/
/* structure that holds the information about the forward and reversed direction */
typedef struct _iax2_bw_history_item {
    double time;
    uint32_t bytes;
} iax2_bw_history_item;
 
#define BUFF_BW 300
 
typedef struct _tap_iax2_stat_t {
    bool first_packet;     /* do not use in code that is called after iax2_packet_analyse */
    /* use (flags & STAT_FLAG_FIRST) instead */
    /* all of the following fields will be initialized after
       iax2_packet_analyse has been called */
    uint32_t flags;             /* see STAT_FLAG-defines below */
    uint16_t seq_num;
    uint32_t timestamp;
    uint32_t delta_timestamp;
    double bandwidth;
    iax2_bw_history_item bw_history[BUFF_BW];
    uint16_t bw_start_index;
    uint16_t bw_index;
    uint32_t total_bytes;
    double delta;
    double jitter;
    double diff;
    double time;
    double start_time;
    double max_delta;
    double max_jitter;
    double mean_jitter;
    uint32_t max_nr;
    uint16_t start_seq_nr;
    uint16_t stop_seq_nr;
    uint32_t total_nr;
    uint32_t sequence;
    bool under; /* Unused? */
    int cycles; /* Unused? */
    uint16_t pt;
    int reg_pt;
} tap_iax2_stat_t;
 
#define PT_UNDEFINED -1
 
/* status flags for the flags parameter in tap_iax2_stat_t */
#define STAT_FLAG_FIRST             0x001
#define STAT_FLAG_MARKER            0x002
#define STAT_FLAG_WRONG_SEQ         0x004
#define STAT_FLAG_PT_CHANGE         0x008
#define STAT_FLAG_PT_CN             0x010
#define STAT_FLAG_FOLLOW_PT_CN      0x020
#define STAT_FLAG_REG_PT_CHANGE     0x040
#define STAT_FLAG_WRONG_TIMESTAMP   0x080
 
/* function for analysing an IAX2 packet. Called from iax2_analysis. */
extern void iax2_packet_analyse(tap_iax2_stat_t *statinfo,
        packet_info *pinfo,
        const struct _iax2_info_t *iax2info);
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* __TAP_IAX2_ANALYSIS_H__ */