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/cdefs.h>
36 __FBSDID("$FreeBSD$");
37
38 #include <sys/param.h>
39 #include <sys/queue.h>
40 #include <sys/socket.h>
41 #include <sys/socketvar.h>
42 #include <sys/protosw.h>
43 #include <sys/linker.h>
44
45 #include <net/route.h>
46
47 #include <netgraph.h>
48 #include <netgraph/ng_message.h>
49 #include <netgraph/ng_socket.h>
50 #include <netgraph/ng_socketvar.h>
51
52 #include <errno.h>
53 #include <stdint.h>
54 #include <stdio.h>
55 #include <stdbool.h>
56 #include <string.h>
57 #include <unistd.h>
58 #include <err.h>
59 #include <libxo/xo.h>
60 #include "netstat.h"
61
62 static int first = 1;
63 static int csock = -1;
64
65 void
netgraphprotopr(u_long off,const char * name,int af1 __unused,int proto __unused)66 netgraphprotopr(u_long off, const char *name, int af1 __unused,
67 int proto __unused)
68 {
69 struct ngpcb *this, *next;
70 struct ngpcb ngpcb;
71 struct socket sockb;
72 int debug = 1;
73
74 /* If symbol not found, try looking in the KLD module */
75 if (off == 0) {
76 if (debug)
77 xo_warnx("Error reading symbols from ng_socket.ko");
78 return;
79 }
80
81 /* Get pointer to first socket */
82 kread(off, (char *)&this, sizeof(this));
83
84 /* Get my own socket node */
85 if (csock == -1)
86 NgMkSockNode(NULL, &csock, NULL);
87
88 for (; this != NULL; this = next) {
89 u_char rbuf[sizeof(struct ng_mesg) + sizeof(struct nodeinfo)];
90 struct ng_mesg *resp = (struct ng_mesg *) rbuf;
91 struct nodeinfo *ni = (struct nodeinfo *) resp->data;
92 char path[64];
93
94 /* Read in ngpcb structure */
95 kread((u_long)this, (char *)&ngpcb, sizeof(ngpcb));
96 next = LIST_NEXT(&ngpcb, socks);
97
98 /* Read in socket structure */
99 kread((u_long)ngpcb.ng_socket, (char *)&sockb, sizeof(sockb));
100
101 /* Check type of socket */
102 if (strcmp(name, "ctrl") == 0 && ngpcb.type != NG_CONTROL)
103 continue;
104 if (strcmp(name, "data") == 0 && ngpcb.type != NG_DATA)
105 continue;
106
107 /* Do headline */
108 if (first) {
109 xo_emit("{T:Netgraph sockets}\n");
110 if (Aflag)
111 xo_emit("{T:/%-8.8s} ", "PCB");
112 xo_emit("{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} "
113 "{T:/%-14.14s} {T:/%s}\n",
114 "Type", "Recv-Q", "Send-Q", "Node Address",
115 "#Hooks");
116 first = 0;
117 }
118
119 /* Show socket */
120 if (Aflag)
121 xo_emit("{:address/%8lx} ", (u_long) this);
122 xo_emit("{t:name/%-5.5s} {:receive-bytes-waiting/%6u} "
123 "{:send-byte-waiting/%6u} ",
124 name, sockb.so_rcv.sb_ccc, sockb.so_snd.sb_ccc);
125
126 /* Get info on associated node */
127 if (ngpcb.node_id == 0 || csock == -1)
128 goto finish;
129 snprintf(path, sizeof(path), "[%x]:", ngpcb.node_id);
130 if (NgSendMsg(csock, path,
131 NGM_GENERIC_COOKIE, NGM_NODEINFO, NULL, 0) < 0)
132 goto finish;
133 if (NgRecvMsg(csock, resp, sizeof(rbuf), NULL) < 0)
134 goto finish;
135
136 /* Display associated node info */
137 if (*ni->name != '\0')
138 snprintf(path, sizeof(path), "%s:", ni->name);
139 xo_emit("{t:path/%-14.14s} {:hooks/%4d}", path, ni->hooks);
140 finish:
141 xo_emit("\n");
142 }
143 }
144
145