Been in production for 3 years now. Gives Instant Frame relay to if_sr and if_ar drivers, and PPPOE support soon. See: ftp://ftp.whistle.com/pub/archie/netgraph/index.html for on-line manual pages. Reviewed by: Doug Rabson (dfr@freebsd.org) Obtained from: Whistle CVS tree
189 lines
5.6 KiB
C
189 lines
5.6 KiB
C
/*
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* Copyright (c) 1996-1999 Whistle Communications, Inc.
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* All rights reserved.
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*
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* Subject to the following obligations and disclaimer of warranty, use and
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* redistribution of this software, in source or object code forms, with or
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* without modifications are expressly permitted by Whistle Communications;
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* provided, however, that:
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* 1. Any and all reproductions of the source or object code must include the
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* copyright notice above and the following disclaimer of warranties; and
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* 2. No rights are granted, in any manner or form, to use Whistle
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* Communications, Inc. trademarks, including the mark "WHISTLE
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* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
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* such appears in the above copyright notice or in the software.
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*
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* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
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* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
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* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
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* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
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* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
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* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
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* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
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* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
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* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef lint
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static const char rcsid[] =
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"$Id: atalk.c,v 1.11 1998/07/06 21:01:22 bde Exp $";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/protosw.h>
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#include <sys/linker.h>
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#include <net/route.h>
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#include <netgraph/ng_message.h>
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#include <netgraph/ng_socket.h>
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#include <netgraph/ng_socketvar.h>
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#include <nlist.h>
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <netgraph.h>
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#include <err.h>
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#include "netstat.h"
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static int first = 1;
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static int csock = -1;
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void
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netgraphprotopr(u_long off, char *name)
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{
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struct ngpcb *this, *next;
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struct ngpcb ngpcb;
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struct ngsock info;
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struct socket sockb;
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int debug = 1;
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/* If symbol not found, try looking in the KLD module */
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if (off == 0) {
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const char *const modname = "ng_socket.ko";
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/* XXX We should get "mpath" from "sysctl kern.module_path" */
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const char *mpath[] = { "/", "/boot/", "/modules/", NULL };
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struct nlist sym[] = { { "_ngsocklist" }, { NULL } };
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const char **pre;
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struct kld_file_stat ks;
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int fileid;
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/* See if module is loaded */
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if ((fileid = kldfind(modname)) < 0) {
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if (debug)
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warn("kldfind(%s)", modname);
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return;
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}
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/* Get module info */
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memset(&ks, 0, sizeof(ks));
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ks.version = sizeof(struct kld_file_stat);
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if (kldstat(fileid, &ks) < 0) {
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if (debug)
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warn("kldstat(%d)", fileid);
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return;
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}
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/* Get symbol table from module file */
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for (pre = mpath; *pre; pre++) {
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char path[MAXPATHLEN];
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snprintf(path, sizeof(path), "%s%s", *pre, modname);
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if (nlist(path, sym) == 0)
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break;
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}
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/* Did we find it? */
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if (sym[0].n_value == 0) {
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if (debug)
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warnx("%s not found", modname);
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return;
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}
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/* Symbol found at load address plus symbol offset */
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off = (u_long) ks.address + sym[0].n_value;
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}
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/* Get pointer to first socket */
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kread(off, (char *)&this, sizeof(this));
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/* Get my own socket node */
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if (csock == -1)
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NgMkSockNode(NULL, &csock, NULL);
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for (; this != NULL; this = next) {
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u_char rbuf[sizeof(struct ng_mesg) + sizeof(struct nodeinfo)];
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struct ng_mesg *resp = (struct ng_mesg *) rbuf;
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struct nodeinfo *ni = (struct nodeinfo *) resp->data;
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char path[64];
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/* Read in ngpcb structure */
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kread((u_long)this, (char *)&ngpcb, sizeof(ngpcb));
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next = ngpcb.socks.le_next;
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/* Read in socket structure */
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kread((u_long)ngpcb.ng_socket, (char *)&sockb, sizeof(sockb));
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/* Check type of socket */
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if (strcmp(name, "ctrl") == 0 && ngpcb.type != NG_CONTROL)
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continue;
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if (strcmp(name, "data") == 0 && ngpcb.type != NG_DATA)
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continue;
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/* Do headline */
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if (first) {
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printf("Netgraph sockets\n");
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if (Aflag)
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printf("%-8.8s ", "PCB");
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printf("%-5.5s %-6.6s %-6.6s %-14.14s %s\n",
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"Type", "Recv-Q", "Send-Q",
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"Node Address", "#Hooks");
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first = 0;
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}
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/* Show socket */
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if (Aflag)
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printf("%8lx ", (u_long) this);
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printf("%-5.5s %6lu %6lu ",
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name, sockb.so_rcv.sb_cc, sockb.so_snd.sb_cc);
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/* Get ngsock structure */
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if (ngpcb.sockdata == 0) /* unconnected data socket */
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goto finish;
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kread((u_long)ngpcb.sockdata, (char *)&info, sizeof(info));
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/* Get info on associated node */
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if (info.node == 0 || csock == -1)
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goto finish;
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snprintf(path, sizeof(path), "[%lx]:", (u_long) info.node);
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if (NgSendMsg(csock, path,
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NGM_GENERIC_COOKIE, NGM_NODEINFO, NULL, 0) < 0)
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goto finish;
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if (NgRecvMsg(csock, resp, sizeof(rbuf), NULL) < 0)
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goto finish;
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/* Display associated node info */
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if (*ni->name != '\0')
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snprintf(path, sizeof(path), "%s:", ni->name);
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printf("%-14.14s %4d", path, ni->hooks);
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finish:
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putchar('\n');
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}
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}
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