1 /*-
2 * Copyright (c) 1996-1999 Whistle Communications, Inc.
3 * All rights reserved.
4 *
5 * Subject to the following obligations and disclaimer of warranty, use and
6 * redistribution of this software, in source or object code forms, with or
7 * without modifications are expressly permitted by Whistle Communications;
8 * provided, however, that:
9 * 1. Any and all reproductions of the source or object code must include the
10 * copyright notice above and the following disclaimer of warranties; and
11 * 2. No rights are granted, in any manner or form, to use Whistle
12 * Communications, Inc. trademarks, including the mark "WHISTLE
13 * COMMUNICATIONS" on advertising, endorsements, or otherwise except as
14 * such appears in the above copyright notice or in the software.
15 *
16 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
17 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
18 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
19 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
21 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
22 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
23 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
24 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
25 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
26 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
27 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
28 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
32 * OF SUCH DAMAGE.
33 */
34
35 #include <sys/param.h>
36 #include <sys/queue.h>
37 #include <sys/socket.h>
38 #define _WANT_SOCKET
39 #include <sys/socketvar.h>
40 #include <sys/protosw.h>
41 #include <sys/linker.h>
42
43 #include <net/route.h>
44
45 #include <netgraph.h>
46 #include <netgraph/ng_message.h>
47 #include <netgraph/ng_socket.h>
48 #include <netgraph/ng_socketvar.h>
49
50 #include <errno.h>
51 #include <stdint.h>
52 #include <stdio.h>
53 #include <stdbool.h>
54 #include <string.h>
55 #include <unistd.h>
56 #include <libxo/xo.h>
57 #include "netstat.h"
58
59 static int first = 1;
60 static int csock = -1;
61
62 void
netgraphprotopr(u_long off,const char * name,int af1 __unused,int proto __unused)63 netgraphprotopr(u_long off, const char *name, int af1 __unused,
64 int proto __unused)
65 {
66 struct ngpcb *this, *next;
67 struct ngpcb ngpcb;
68 struct socket sockb;
69 int debug = 1;
70
71 /* If symbol not found, try looking in the KLD module */
72 if (off == 0) {
73 if (debug)
74 xo_warnx("Error reading symbols from ng_socket.ko");
75 return;
76 }
77
78 /* Get pointer to first socket */
79 kread(off, (char *)&this, sizeof(this));
80
81 /* Get my own socket node */
82 if (csock == -1)
83 NgMkSockNode(NULL, &csock, NULL);
84
85 for (; this != NULL; this = next) {
86 u_char rbuf[sizeof(struct ng_mesg) + sizeof(struct nodeinfo)];
87 struct ng_mesg *resp = (struct ng_mesg *) rbuf;
88 struct nodeinfo *ni = (struct nodeinfo *) resp->data;
89 char path[64];
90
91 /* Read in ngpcb structure */
92 kread((u_long)this, (char *)&ngpcb, sizeof(ngpcb));
93 next = LIST_NEXT(&ngpcb, socks);
94
95 /* Read in socket structure */
96 kread((u_long)ngpcb.ng_socket, (char *)&sockb, sizeof(sockb));
97
98 /* Check type of socket */
99 if (strcmp(name, "ctrl") == 0 && ngpcb.type != NG_CONTROL)
100 continue;
101 if (strcmp(name, "data") == 0 && ngpcb.type != NG_DATA)
102 continue;
103
104 /* Do headline */
105 if (first) {
106 xo_emit("{T:Netgraph sockets}\n");
107 if (Aflag)
108 xo_emit("{T:/%-8.8s} ", "PCB");
109 xo_emit("{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} "
110 "{T:/%-14.14s} {T:/%s}\n",
111 "Type", "Recv-Q", "Send-Q", "Node Address",
112 "#Hooks");
113 first = 0;
114 }
115
116 /* Show socket */
117 if (Aflag)
118 xo_emit("{:address/%8lx} ", (u_long) this);
119 xo_emit("{t:name/%-5.5s} {:receive-bytes-waiting/%6u} "
120 "{:send-byte-waiting/%6u} ",
121 name, sockb.so_rcv.sb_ccc, sockb.so_snd.sb_ccc);
122
123 /* Get info on associated node */
124 if (ngpcb.node_id == 0 || csock == -1)
125 goto finish;
126 snprintf(path, sizeof(path), "[%x]:", ngpcb.node_id);
127 if (NgSendMsg(csock, path,
128 NGM_GENERIC_COOKIE, NGM_NODEINFO, NULL, 0) < 0)
129 goto finish;
130 if (NgRecvMsg(csock, resp, sizeof(rbuf), NULL) < 0)
131 goto finish;
132
133 /* Display associated node info */
134 if (*ni->name != '\0')
135 snprintf(path, sizeof(path), "%s:", ni->name);
136 xo_emit("{t:path/%-14.14s} {:hooks/%4d}", path, ni->hooks);
137 finish:
138 xo_emit("\n");
139 }
140 }
141
142