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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1998, 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _TCP_TRACE_H
#define _TCP_TRACE_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
/*
* TCP trace buffer size definitions
*
* NOTE: Do NOT change the number of TCP_TRACE_NREC. Its is fixed to 10
* because of limitation of strlog() function which max buffer size is 1024.
*/
#define TCP_TRACE_NREC 10 /* # of trace packets in tcp_t */
/*
* Flags for tcp_trec_pkttype
*/
#define TCP_TRACE_NOENT 0 /* No data in this record */
#define TCP_TRACE_SEND_PKT 1 /* Send data record */
#define TCP_TRACE_RECV_PKT 2 /* received data record */
/*
* Trace record structure
*
* NOTE: tcp_data has a IP packet size. When we format a data which is
* loged by strlog(), TCP data size is calculated.
*/
typedef struct tcp_trace_rec {
hrtime_t tcptr_iotime; /* Time of I/O */
uint32_t tcptr_tcp_seq; /* Sequence number */
uint32_t tcptr_tcp_ack; /* Acknowledgement number */
uint16_t tcptr_tcp_data; /* TCP data size */
uint16_t tcptr_tcp_win; /* Window size */
uint8_t tcptr_pkttype; /* 1=sent, 2=received */
uint8_t tcptr_ip_hdr_len; /* Byte len of IP header */
uint8_t tcptr_tcp_hdr_len; /* Byte len of TCP header */
uint8_t tcptr_tcp_flags[1]; /* TCP packet flag */
} tcptrcrec_t;
/*
* Trace buffer record structrure
*/
typedef struct tcp_trace_header {
hrtime_t tcptrh_conn_time; /* time of connection init. */
int tcptrh_currec; /* current trace record */
int tcptrh_send_total; /* # traced sent packets */
int tcptrh_recv_total; /* # traced received packets */
tcptrcrec_t tcptrh_evts[TCP_TRACE_NREC]; /* event records */
} tcptrch_t;
struct tcp_s;
/*
* tcp trace function
*/
extern void tcp_record_trace(struct tcp_s *tcp, mblk_t *mp, int flag);
/*
* Macro for tcp trace
*/
#define TCP_RECORD_TRACE(tcp, mp, flag) { \
if (tcp->tcp_tracebuf != NULL) { \
tcp_record_trace(tcp, mp, flag); \
} \
}
#ifdef __cplusplus
}
#endif
#endif /* _TCP_TRACE_H */
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