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/*-
* Copyright (c) 1996-1999 Whistle Communications, Inc.
* All rights reserved.
*
* Subject to the following obligations and disclaimer of warranty, use and
* redistribution of this software, in source or object code forms, with or
* without modifications are expressly permitted by Whistle Communications;
* provided, however, that:
* 1. Any and all reproductions of the source or object code must include the
* copyright notice above and the following disclaimer of warranties; and
* 2. No rights are granted, in any manner or form, to use Whistle
* Communications, Inc. trademarks, including the mark "WHISTLE
* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
* such appears in the above copyright notice or in the software.
*
* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/protosw.h>
#include <sys/linker.h>
#include <net/route.h>
#include <netgraph.h>
#include <netgraph/ng_message.h>
#include <netgraph/ng_socket.h>
#include <netgraph/ng_socketvar.h>
#include <nlist.h>
#include <errno.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <err.h>
#include "netstat.h"
static int first = 1;
static int csock = -1;
void
netgraphprotopr(u_long off, const char *name, int af1 __unused,
int proto __unused)
{
struct ngpcb *this, *next;
struct ngpcb ngpcb;
struct ngsock info;
struct socket sockb;
int debug = 1;
/* If symbol not found, try looking in the KLD module */
if (off == 0) {
const char *const modname = "ng_socket.ko";
/* XXX We should get "mpath" from "sysctl kern.module_path" */
const char *mpath[] = { "/", "/boot/", "/modules/", NULL };
struct nlist sym[] = { { .n_name = "_ngsocklist" },
{ .n_name = NULL } };
const char **pre;
struct kld_file_stat ks;
int fileid;
/* Can't do this for core dumps. */
if (!live)
return;
/* See if module is loaded */
if ((fileid = kldfind(modname)) < 0) {
if (debug)
warn("kldfind(%s)", modname);
return;
}
/* Get module info */
memset(&ks, 0, sizeof(ks));
ks.version = sizeof(struct kld_file_stat);
if (kldstat(fileid, &ks) < 0) {
if (debug)
warn("kldstat(%d)", fileid);
return;
}
/* Get symbol table from module file */
for (pre = mpath; *pre; pre++) {
char path[MAXPATHLEN];
snprintf(path, sizeof(path), "%s%s", *pre, modname);
if (nlist(path, sym) == 0)
break;
}
/* Did we find it? */
if (sym[0].n_value == 0) {
if (debug)
warnx("%s not found", modname);
return;
}
/* Symbol found at load address plus symbol offset */
off = (u_long) ks.address + sym[0].n_value;
}
/* Get pointer to first socket */
kread(off, (char *)&this, sizeof(this));
/* Get my own socket node */
if (csock == -1)
NgMkSockNode(NULL, &csock, NULL);
for (; this != NULL; this = next) {
u_char rbuf[sizeof(struct ng_mesg) + sizeof(struct nodeinfo)];
struct ng_mesg *resp = (struct ng_mesg *) rbuf;
struct nodeinfo *ni = (struct nodeinfo *) resp->data;
char path[64];
/* Read in ngpcb structure */
kread((u_long)this, (char *)&ngpcb, sizeof(ngpcb));
next = LIST_NEXT(&ngpcb, socks);
/* Read in socket structure */
kread((u_long)ngpcb.ng_socket, (char *)&sockb, sizeof(sockb));
/* Check type of socket */
if (strcmp(name, "ctrl") == 0 && ngpcb.type != NG_CONTROL)
continue;
if (strcmp(name, "data") == 0 && ngpcb.type != NG_DATA)
continue;
/* Do headline */
if (first) {
printf("Netgraph sockets\n");
if (Aflag)
printf("%-8.8s ", "PCB");
printf("%-5.5s %-6.6s %-6.6s %-14.14s %s\n",
"Type", "Recv-Q", "Send-Q",
"Node Address", "#Hooks");
first = 0;
}
/* Show socket */
if (Aflag)
printf("%8lx ", (u_long) this);
printf("%-5.5s %6u %6u ",
name, sockb.so_rcv.sb_cc, sockb.so_snd.sb_cc);
/* Get ngsock structure */
if (ngpcb.sockdata == NULL) /* unconnected data socket */
goto finish;
kread((u_long)ngpcb.sockdata, (char *)&info, sizeof(info));
/* Get info on associated node */
if (info.node_id == 0 || csock == -1)
goto finish;
snprintf(path, sizeof(path), "[%x]:", info.node_id);
if (NgSendMsg(csock, path,
NGM_GENERIC_COOKIE, NGM_NODEINFO, NULL, 0) < 0)
goto finish;
if (NgRecvMsg(csock, resp, sizeof(rbuf), NULL) < 0)
goto finish;
/* Display associated node info */
if (*ni->name != '\0')
snprintf(path, sizeof(path), "%s:", ni->name);
printf("%-14.14s %4d", path, ni->hooks);
finish:
putchar('\n');
}
}
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