2 * Asterisk -- A telephony toolkit for Linux.
4 * Implementation of Inter-Asterisk eXchange
6 * Copyright (C) 2003, Digium
8 * Mark Spencer <markster@linux-support.net>
10 * This program is free software, distributed under the terms of
11 * the GNU General Public License
14 #ifndef _IAX2_PARSER_H
15 #define _IAX2_PARSER_H
25 unsigned int capability;
29 unsigned short adsicpe;
32 unsigned int authmethods;
36 struct sockaddr_in *apparent_addr;
37 unsigned short refresh;
38 unsigned short dpstatus;
39 unsigned short callno;
41 unsigned char iax_unknown;
45 unsigned int transferid;
48 #define DIRECTION_INGRESS 1
49 #define DIRECTION_OUTGRESS 2
53 struct iax_session *session;
54 struct iax_event *event;
57 /* /Our/ call number */
58 unsigned short callno;
59 /* /Their/ call number */
60 unsigned short dcallno;
61 /* Start of raw frame (outgoing only) */
63 /* Length of frame (outgoing only) */
65 /* How many retries so far? */
67 /* Outgoing relative timestamp (ms) */
69 /* How long to wait before retrying */
71 /* Are we received out of order? */
73 /* Have we been sent at all yet? */
75 /* Outgoing Packet sequence number */
77 /* Next expected incoming packet sequence number */
79 /* Non-zero if should be sent to transfer peer */
81 /* Non-zero if this is the final message */
83 /* Ingress or outgres */
85 /* Retransmission ID */
88 struct iax_frame *next;
89 struct iax_frame *prev;
90 /* Actual, isolated frame header */
92 unsigned char unused[AST_FRIENDLY_OFFSET];
93 unsigned char afdata[0]; /* Data for frame */
97 unsigned char buf[1024];
101 /* Choose a different function for output */
102 extern void iax_set_output(void (*output)(const char *data));
103 /* Choose a different function for errors */
104 extern void iax_set_error(void (*output)(const char *data));
105 extern void iax_showframe(struct iax_frame *f, struct ast_iax2_full_hdr *fhi, int rx, struct sockaddr_in *sin, int datalen);
107 extern const char *iax_ie2str(int ie);
109 extern int iax_ie_append_raw(struct iax_ie_data *ied, unsigned char ie, void *data, int datalen);
110 extern int iax_ie_append_addr(struct iax_ie_data *ied, unsigned char ie, struct sockaddr_in *sin);
111 extern int iax_ie_append_int(struct iax_ie_data *ied, unsigned char ie, unsigned int value);
112 extern int iax_ie_append_short(struct iax_ie_data *ied, unsigned char ie, unsigned short value);
113 extern int iax_ie_append_str(struct iax_ie_data *ied, unsigned char ie, unsigned char *str);
114 extern int iax_ie_append_byte(struct iax_ie_data *ied, unsigned char ie, unsigned char dat);
115 extern int iax_ie_append(struct iax_ie_data *ied, unsigned char ie);
116 extern int iax_parse_ies(struct iax_ies *ies, unsigned char *data, int datalen);
118 extern int iax_get_frames(void);
119 extern int iax_get_iframes(void);
120 extern int iax_get_oframes(void);
122 extern void iax_frame_wrap(struct iax_frame *fr, struct ast_frame *f);
123 extern struct iax_frame *iax_frame_new(int direction, int datalen);
124 extern void iax_frame_free(struct iax_frame *fr);