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 #define _WANT_SOCKET 42 #include <sys/socketvar.h> 43 #include <sys/protosw.h> 44 #include <sys/linker.h> 45 46 #include <net/route.h> 47 48 #include <netgraph.h> 49 #include <netgraph/ng_message.h> 50 #include <netgraph/ng_socket.h> 51 #include <netgraph/ng_socketvar.h> 52 53 #include <errno.h> 54 #include <stdint.h> 55 #include <stdio.h> 56 #include <stdbool.h> 57 #include <string.h> 58 #include <unistd.h> 59 #include <err.h> 60 #include <libxo/xo.h> 61 #include "netstat.h" 62 63 static int first = 1; 64 static int csock = -1; 65 66 void 67 netgraphprotopr(u_long off, const char *name, int af1 __unused, 68 int proto __unused) 69 { 70 struct ngpcb *this, *next; 71 struct ngpcb ngpcb; 72 struct socket sockb; 73 int debug = 1; 74 75 /* If symbol not found, try looking in the KLD module */ 76 if (off == 0) { 77 if (debug) 78 xo_warnx("Error reading symbols from ng_socket.ko"); 79 return; 80 } 81 82 /* Get pointer to first socket */ 83 kread(off, (char *)&this, sizeof(this)); 84 85 /* Get my own socket node */ 86 if (csock == -1) 87 NgMkSockNode(NULL, &csock, NULL); 88 89 for (; this != NULL; this = next) { 90 u_char rbuf[sizeof(struct ng_mesg) + sizeof(struct nodeinfo)]; 91 struct ng_mesg *resp = (struct ng_mesg *) rbuf; 92 struct nodeinfo *ni = (struct nodeinfo *) resp->data; 93 char path[64]; 94 95 /* Read in ngpcb structure */ 96 kread((u_long)this, (char *)&ngpcb, sizeof(ngpcb)); 97 next = LIST_NEXT(&ngpcb, socks); 98 99 /* Read in socket structure */ 100 kread((u_long)ngpcb.ng_socket, (char *)&sockb, sizeof(sockb)); 101 102 /* Check type of socket */ 103 if (strcmp(name, "ctrl") == 0 && ngpcb.type != NG_CONTROL) 104 continue; 105 if (strcmp(name, "data") == 0 && ngpcb.type != NG_DATA) 106 continue; 107 108 /* Do headline */ 109 if (first) { 110 xo_emit("{T:Netgraph sockets}\n"); 111 if (Aflag) 112 xo_emit("{T:/%-8.8s} ", "PCB"); 113 xo_emit("{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} " 114 "{T:/%-14.14s} {T:/%s}\n", 115 "Type", "Recv-Q", "Send-Q", "Node Address", 116 "#Hooks"); 117 first = 0; 118 } 119 120 /* Show socket */ 121 if (Aflag) 122 xo_emit("{:address/%8lx} ", (u_long) this); 123 xo_emit("{t:name/%-5.5s} {:receive-bytes-waiting/%6u} " 124 "{:send-byte-waiting/%6u} ", 125 name, sockb.so_rcv.sb_ccc, sockb.so_snd.sb_ccc); 126 127 /* Get info on associated node */ 128 if (ngpcb.node_id == 0 || csock == -1) 129 goto finish; 130 snprintf(path, sizeof(path), "[%x]:", ngpcb.node_id); 131 if (NgSendMsg(csock, path, 132 NGM_GENERIC_COOKIE, NGM_NODEINFO, NULL, 0) < 0) 133 goto finish; 134 if (NgRecvMsg(csock, resp, sizeof(rbuf), NULL) < 0) 135 goto finish; 136 137 /* Display associated node info */ 138 if (*ni->name != '\0') 139 snprintf(path, sizeof(path), "%s:", ni->name); 140 xo_emit("{t:path/%-14.14s} {:hooks/%4d}", path, ni->hooks); 141 finish: 142 xo_emit("\n"); 143 } 144 } 145 146