devls.c

MIPS处理器的bootloader,龙芯就是用的修改过的PMON2

/*	$Id: devls.c,v 1.4 2003/08/13 19:08:02 pefo Exp $ */

/*
 * Copyright (c) 2001 Opsycon AB  (www.opsycon.se)
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Opsycon AB, Sweden.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON 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 ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/device.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <net/radix.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/in_var.h>
#include <netinet/if_ether.h>



#include <pmon.h>

/*
 *  List known devices.
 */

int cmd_devls(int, char *[]);

void printnetinfo(char *);

char *devclass[] = {
	"DULL", "CPU", "DISK", "IFNET", "TAPE", "TTY"
};

int
cmd_devls(ac, av)
	int ac;
	char *av[];
{
extern int optind;
//extern char *optarg;
	int	opt_a = 0;
	int	opt_n = 0;
	int	c;
	struct device *dev, *next_dev;

	optind = 0;
	while((c = getopt(ac, av, "an")) != EOF) {
		switch(c) {
		case 'a':		/* Show network devices */
			opt_a = 1;
			break;

		case 'n':		/* Show network devices */
			opt_n = 1;
			break;

		default:
			return(-1);	/* catch -p when not enabled */
		}
	}
	if(optind < ac) {
		return(-1);	/* Argument error */
	}

	printf("Name   Type   Info\n");

	for (dev  = TAILQ_FIRST(&alldevs); dev != NULL; dev = next_dev) {
		next_dev = TAILQ_NEXT(dev, dv_list);
		if(!opt_a && dev->dv_class < DV_DISK) {
			continue;
		}
		printf("%-6s %-7s", dev->dv_xname, devclass[dev->dv_class]);
		if (dev->dv_class == DV_IFNET) {
			printnetinfo(dev->dv_xname);
		}
		printf("\n");
	}

	return(1);
}

void
printnetinfo(char * name)
{
	struct ifnet *ifp;
	struct ifaddr *ifa;
	struct arpcom *arpcomp;

	ifp = ifunit(name);
	arpcomp = (struct arpcom *)ifp;
	if (!ifp) {
		printf("not available");
		return;
	}
	printf("%-5sea=%-18s", (ifp->if_flags & IFF_UP ? "up" : "down"),
		ether_sprintf(arpcomp->ac_enaddr));
	for (ifa = ifp->if_addrlist.tqh_first; ifa;
	    ifa = ifa->ifa_list.tqe_next) {
		if (ifa->ifa_addr->sa_family == AF_INET)
			printf("ip=%s",
		inet_ntoa(((struct sockaddr_in *)ifa->ifa_addr)->sin_addr));
	}
}

/*
 *  Command table registration
 *  ==========================
 */

const Optdesc cmd_devls_opts[] = {
	{ "-a",	"show all device types" },
	{ "-n",	"show network devices" },
	{ 0 }
};

static const Cmd Cmds[] =
{
	{"Misc"},
	{"devls",	"[-an]",
			cmd_devls_opts,
			"list devices",
			cmd_devls, 1, 99,
			0},
	{0, 0}
};

static void init_cmd __P((void)) __attribute__ ((constructor));

void
init_cmd()
{
	cmdlist_expand(Cmds, 1);
}