xref: /illumos-gate/usr/src/cmd/cmd-inet/usr.sbin/snoop/snoop_atp.c (revision 2a8bcb4efb45d99ac41c94a75c396b362c414f7f)
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) 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 *atp_ci(uint8_t);
34 
35 static char *atp_trel[8] = {
36 	"30s",
37 	"1m",
38 	"2m",
39 	"4m",
40 	"8m",
41 	"(undef 5)",
42 	"(undef 6)",
43 	"(undef 7)"
44 };
45 
46 void
interpret_atp(int flags,struct ddp_hdr * ddp,int len)47 interpret_atp(int flags, struct ddp_hdr *ddp, int len)
48 {
49 	struct atp_hdr *atp = (struct atp_hdr *)ddp;
50 	int atplen = len - (DDPHDR_SIZE + ATPHDR_SIZE);
51 
52 	if (flags & F_SUM) {
53 		if (atplen < 0) {
54 			(void) snprintf(get_sum_line(), MAXLINE,
55 			    "ATP (short packet)");
56 			return;
57 		}
58 		(void) snprintf(get_sum_line(), MAXLINE,
59 		    "ATP (%s), TID=%d, L=%d",
60 		    atp_ci(atp->atp_ctrl),
61 		    get_short((uint8_t *)&atp->atp_tid),
62 		    len);
63 	}
64 
65 	if (flags & F_DTAIL) {
66 		show_header("ATP:  ", "ATP Header", 8);
67 		show_space();
68 
69 		if (atplen < 0) {
70 			(void) snprintf(get_line(0, 0), get_line_remain(),
71 			    "ATP (short packet)");
72 			return;
73 		}
74 		(void) snprintf(get_line(0, 0), get_line_remain(),
75 		    "Length = %d", len);
76 		(void) snprintf(get_line(0, 0), get_line_remain(),
77 		    "Ctrl = 0x%x (%s), bitmap/seq = 0x%x",
78 		    atp->atp_ctrl,
79 		    atp_ci(atp->atp_ctrl),
80 		    atp->atp_seq);
81 		(void) snprintf(get_line(0, 0), get_line_remain(),
82 		    "TID = %d, user bytes 0x%x 0x%x 0x%x 0x%x",
83 		    get_short((uint8_t *)&atp->atp_tid),
84 		    atp->atp_user[0], atp->atp_user[1],
85 		    atp->atp_user[2], atp->atp_user[3]);
86 		show_space();
87 	}
88 
89 	if (ddp->ddp_dest_sock == DDP_TYPE_ZIP ||
90 	    ddp->ddp_src_sock == DDP_TYPE_ZIP)
91 		interpret_atp_zip(flags, atp, atplen);
92 }
93 
94 static char *
atp_ci(uint8_t ci)95 atp_ci(uint8_t ci)
96 {
97 	static char buf[50];
98 	char *p = buf;
99 	char *to = NULL;
100 	char *tail = &buf[sizeof (buf)];
101 
102 	switch (atp_fun(ci)) {
103 	case ATP_TREQ:
104 		p += snprintf(p, tail-p, "TReq");
105 		to = atp_trel[atp_tmo(ci)];
106 		break;
107 	case ATP_TRESP:
108 		p += snprintf(p, tail-p, "TResp");
109 		break;
110 	case ATP_TREL:
111 		p += snprintf(p, tail-p, "TRel");
112 		break;
113 	}
114 
115 	p += snprintf(p, tail-p, ci & ATP_FLG_XO ? " XO" : " ALO");
116 
117 	if (ci & ATP_FLG_EOM)
118 		p += snprintf(p, tail-p, " EOM");
119 
120 	if (ci & ATP_FLG_STS)
121 		p += snprintf(p, tail-p, " STS");
122 
123 	if (to != NULL)
124 		(void) snprintf(p, tail-p, " %s", to);
125 	return (buf);
126 }
127