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 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