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      1  0  stevel /*
      2  0  stevel  * CDDL HEADER START
      3  0  stevel  *
      4  0  stevel  * The contents of this file are subject to the terms of the
      5  0  stevel  * Common Development and Distribution License, Version 1.0 only
      6  0  stevel  * (the "License").  You may not use this file except in compliance
      7  0  stevel  * with the License.
      8  0  stevel  *
      9  0  stevel  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  0  stevel  * or http://www.opensolaris.org/os/licensing.
     11  0  stevel  * See the License for the specific language governing permissions
     12  0  stevel  * and limitations under the License.
     13  0  stevel  *
     14  0  stevel  * When distributing Covered Code, include this CDDL HEADER in each
     15  0  stevel  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  0  stevel  * If applicable, add the following below this CDDL HEADER, with the
     17  0  stevel  * fields enclosed by brackets "[]" replaced with your own identifying
     18  0  stevel  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  0  stevel  *
     20  0  stevel  * CDDL HEADER END
     21  0  stevel  */
     22  0  stevel /*
     23  0  stevel  * Copyright (c) 2001 by Sun Microsystems, Inc.
     24  0  stevel  * All rights reserved.
     25  0  stevel  */
     26  0  stevel 
     27  0  stevel #pragma ident	"%Z%%M%	%I%	%E% SMI"
     28  0  stevel 
     29  0  stevel #include <stdio.h>
     30  0  stevel #include <sys/types.h>
     31  0  stevel 
     32  0  stevel #include <at.h>
     33  0  stevel #include <snoop.h>
     34  0  stevel 
     35  0  stevel static void show_rtmp_tuples(uint8_t *, int);
     36  0  stevel 
     37  0  stevel static char *
     38  0  stevel rtmp_func_long(uint8_t fun)
     39  0  stevel {
     40  0  stevel 	switch (fun) {
     41  0  stevel 	case RTMP_REQ:
     42  0  stevel 		return ("Request");
     43  0  stevel 	case RTMP_RDR_SH:
     44  0  stevel 		return ("Route Data Request, split horizon");
     45  0  stevel 	case RTMP_RDR_NSH:
     46  0  stevel 		return ("Route Data Request, no split horizon");
     47  0  stevel 	default:
     48  0  stevel 		return ("unknown");
     49  0  stevel 	}
     50  0  stevel }
     51  0  stevel 
     52  0  stevel static char *
     53  0  stevel rtmp_func_short(uint8_t fun)
     54  0  stevel {
     55  0  stevel 	switch (fun) {
     56  0  stevel 	case RTMP_REQ:
     57  0  stevel 		return ("Req");
     58  0  stevel 	case RTMP_RDR_SH:
     59  0  stevel 		return ("RDR, sh");
     60  0  stevel 	case RTMP_RDR_NSH:
     61  0  stevel 		return ("RDR, no sh");
     62  0  stevel 	default:
     63  0  stevel 		return ("unknown");
     64  0  stevel 	}
     65  0  stevel }
     66  0  stevel 
     67  0  stevel void
     68  0  stevel interpret_rtmp(int flags, struct ddp_hdr *ddp, int len)
     69  0  stevel {
     70  0  stevel 	uint8_t *data;
     71  0  stevel 	uint16_t snet;
     72  0  stevel 	uint8_t node;
     73  0  stevel 	int tuples;
     74  0  stevel 	int runt;
     75  0  stevel 	char extended;
     76  0  stevel 
     77  0  stevel 	len -= DDPHDR_SIZE;
     78  0  stevel 	if (len < 0)
     79  0  stevel 		goto out;
     80  0  stevel 
     81  0  stevel 	data = (uint8_t *)ddp + DDPHDR_SIZE;
     82  0  stevel 
     83  0  stevel 	switch (ddp->ddp_type) {
     84  0  stevel 	case DDP_TYPE_RTMPRQ:		/* simple rtmp */
     85  0  stevel 		if (len < 1)
     86  0  stevel 			goto out;
     87  0  stevel 
     88  0  stevel 		if (flags & F_SUM) {
     89  0  stevel 			(void) snprintf(get_sum_line(), MAXLINE,
     90  0  stevel 			    "RTMP F=%s",
     91  0  stevel 			    rtmp_func_short(data[0]));
     92  0  stevel 		}
     93  0  stevel 
     94  0  stevel 		if (flags & F_DTAIL) {
     95  0  stevel 			show_header("RTMP: ", "RTMP Header", len);
     96  0  stevel 			show_space();
     97  0  stevel 
     98  0  stevel 			(void) snprintf(get_line(0, 0), get_line_remain(),
     99  0  stevel 			    "Func = %d (%s)",
    100  0  stevel 			    data[0], rtmp_func_long(data[0]));
    101  0  stevel 		}
    102  0  stevel 		break;
    103  0  stevel 	case DDP_TYPE_RTMPRESP:		/* RTMP data */
    104  0  stevel 		if (len < 3)
    105  0  stevel 			goto out;
    106  0  stevel 
    107  0  stevel 		snet = get_short(data);
    108  0  stevel 		if (data[2] != 8)	/* ID length is always 8 */
    109  0  stevel 			return;
    110  0  stevel 		node = data[3];		/* assume id_len == 8 */
    111  0  stevel 		extended = (data[6] != RTMP_FILLER) &&
    112  0  stevel 		    (get_short(&data[4]) != 0);
    113  0  stevel 
    114  0  stevel 		tuples = (len - 4) / 3;
    115  0  stevel 		runt = (len - 4) % 3; /* integral length? */
    116  0  stevel 
    117  0  stevel 		if (flags & F_SUM) {
    118  0  stevel 			(void) snprintf(get_sum_line(), MAXLINE,
    119  0  stevel 			    "RTMP Data Snet=%d, Snode=%d%s",
    120  0  stevel 			    snet, node, runt != 0 ? " (short)" : "");
    121  0  stevel 		}
    122  0  stevel 
    123  0  stevel 		if (flags & F_DTAIL) {
    124  0  stevel 			show_header("RTMP: ", "RTMP Header", len);
    125  0  stevel 			show_space();
    126  0  stevel 
    127  0  stevel 			(void) snprintf(get_line(0, 0), get_line_remain(),
    128  0  stevel 			    "RTMP Data, Length = %d%s",
    129  0  stevel 			    len, runt != 0 ? " (short packet)" : "");
    130  0  stevel 			(void) snprintf(get_line(0, 0), get_line_remain(),
    131  0  stevel 			    "Senders Net = %d, Sender Node %d",
    132  0  stevel 			    snet, node);
    133  0  stevel 			if (extended)
    134  0  stevel 				show_rtmp_tuples(&data[4], tuples);
    135  0  stevel 			else
    136  0  stevel 				show_rtmp_tuples(&data[7], tuples-1);
    137  0  stevel 		}
    138  0  stevel 
    139  0  stevel 		break;
    140  0  stevel 	}
    141  0  stevel 	return;
    142  0  stevel out:
    143  0  stevel 	if (flags & F_SUM) {
    144  0  stevel 		(void) snprintf(get_sum_line(), MAXLINE,
    145  0  stevel 		    "RTMP (short packet)");
    146  0  stevel 	}
    147  0  stevel 
    148  0  stevel 	if (flags & F_DTAIL) {
    149  0  stevel 		show_header("RTMP: ", "RTMP Header", len);
    150  0  stevel 		show_space();
    151  0  stevel 
    152  0  stevel 		(void) snprintf(get_line(0, 0), get_line_remain(),
    153  0  stevel 		    "(short packet)");
    154  0  stevel 	}
    155  0  stevel }
    156  0  stevel 
    157  0  stevel static void
    158  0  stevel show_rtmp_tuples(uint8_t *p, int tuples)
    159  0  stevel {
    160  0  stevel 	while (tuples > 0) {
    161  0  stevel 
    162  0  stevel 		if (p[2] & RTMP_EXTEND) { /* extended tuple? */
    163  0  stevel 
    164  0  stevel 			(void) snprintf(get_line(0, 0),
    165  0  stevel 			    get_line_remain(),
    166  0  stevel 			    "Network = %d-%d, Distance = %d",
    167  0  stevel 			    get_short(p), get_short(&p[3]),
    168  0  stevel 			    p[2] & RTMP_DIST_MASK);
    169  0  stevel 			p += 6;
    170  0  stevel 			tuples -= 2;
    171  0  stevel 		} else {
    172  0  stevel 
    173  0  stevel 			(void) snprintf(get_line(0, 0),
    174  0  stevel 			    get_line_remain(),
    175  0  stevel 			    "Network = %d, Distance = %d",
    176  0  stevel 			    get_short(p), p[2]);
    177  0  stevel 			p += 3;
    178  0  stevel 			tuples--;
    179  0  stevel 		}
    180  0  stevel 	}
    181  0  stevel }
    182