xref: /illumos-gate/usr/src/cmd/cmd-inet/usr.sbin/snoop/snoop_adsp.c (revision 9164a50bf932130cbb5097a16f6986873ce0e6e5)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1991-2001 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #include <stdio.h>
28 #include <sys/types.h>
29 
30 #include <at.h>
31 #include <snoop.h>
32 
33 static char *adsp_ctrl(uint8_t);
34 
35 void
36 interpret_adsp(int flags, struct ddp_adsphdr *adp, int len)
37 {
38 	struct ddp_adsp_open *apo;
39 
40 	if (flags & F_SUM) {
41 		if (len < sizeof (struct ddp_adsphdr)) {
42 			(void) snprintf(get_sum_line(), MAXLINE,
43 			    "ADSP (short packet)");
44 			return;
45 		}
46 		(void) snprintf(get_sum_line(), MAXLINE,
47 		    "ADSP ConnID=%u (%s)",
48 		    get_short(adp->ad_connid),
49 		    adsp_ctrl(adp->ad_desc));
50 	}
51 
52 	if (flags & F_DTAIL) {
53 		show_header("ADSP: ", "ADSP Header",
54 		    len - sizeof (struct ddp_adsphdr));
55 		show_space();
56 
57 		if (len < sizeof (struct ddp_adsphdr)) {
58 			(void) snprintf(get_line(0, 0), get_line_remain(),
59 			    "(short packet)");
60 			return;
61 		}
62 
63 		(void) snprintf(get_line(0, 0), get_line_remain(),
64 		    "ConnID = %u, ByteSeq = %u, RecvSeq = %u",
65 		    get_short(adp->ad_connid),
66 		    get_long(adp->ad_fbseq),
67 		    get_long(adp->ad_nrseq));
68 
69 		(void) snprintf(get_line(0, 0), get_line_remain(),
70 		    "RcvWin = %u, Ctrl = 0x%x (%s)",
71 		    get_short(adp->ad_rcvwin),
72 		    adp->ad_desc,
73 		    adsp_ctrl(adp->ad_desc));
74 
75 		switch (adp->ad_desc) {
76 		case AD_CREQ:		/* open requests */
77 		case AD_CACK:
78 		case AD_CREQ_ACK:
79 		case AD_CDENY:
80 			apo = (struct ddp_adsp_open *)adp;
81 			if (len < sizeof (struct ddp_adsp_open)) {
82 				(void) snprintf(get_line(0, 0),
83 				    get_line_remain(),
84 				    "(short packet)");
85 				return;
86 			}
87 			(void) snprintf(get_line(0, 0), get_line_remain(),
88 			    "Dest ConnID = %u, AttRcvSeq = %u",
89 			    get_short(apo->ad_dconnid),
90 			    get_long(apo->ad_attseq));
91 			break;
92 		}
93 
94 		if (adp->ad_desc & AD_ATT) {
95 			(void) snprintf(get_line(0, 0), get_line_remain(),
96 			    "AttCode = 0x%x",
97 			    get_short(((struct ddp_adsp_att *)adp)->
98 				ad_att_code));
99 		}
100 	}
101 }
102 
103 static char *adsp_ctrl_msg[] = {
104 	"Probe/Ack",
105 	"OpenConnReq",
106 	"OpenConnAck",
107 	"OpenConnReq+Ack",
108 	"OpenConnDeny",
109 	"CloseConnAdv",
110 	"ForwReset",
111 	"ForwReset Ack",
112 	"RetransAdv",
113 	"9", "10", "11", "12", "13", "14", "15",
114 };
115 
116 static char *
117 adsp_ctrl(uint8_t ctrl)
118 {
119 	static char buf[50];
120 	char *p = buf;
121 	char *tail = &buf[sizeof (buf)];
122 
123 	if (ctrl & AD_ACKREQ)
124 		p += snprintf(p, tail-p, "AckReq");
125 
126 	if (ctrl & AD_EOM) {
127 		p += snprintf(p, tail-p, p == buf ? "EOM" : " EOM");
128 	}
129 
130 	if (ctrl & AD_ATT) {
131 		p += snprintf(p, tail-p, p == buf ? "Att" : " Att");
132 	}
133 
134 	if (ctrl & AD_CTRL) {
135 		(void) snprintf(p, tail-p, "%s%s", p == buf ? "" : " ",
136 		    adsp_ctrl_msg[ctrl & AD_CTRL_MASK]);
137 	}
138 
139 	return (buf);
140 }
141