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      1 /* $NetBSD: dev_net.c,v 1.4 2011/07/17 20:54:41 joerg Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2003 Naoto Shimazaki.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY NAOTO SHIMAZAKI AND CONTRIBUTORS ``AS IS''
     17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     18  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE NAOTO OR CONTRIBUTORS BE
     20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     26  * THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: dev_net.c,v 1.4 2011/07/17 20:54:41 joerg Exp $");
     30 
     31 #include <sys/param.h>
     32 #include <sys/types.h>
     33 #include <netinet/in.h>
     34 
     35 #include <lib/libsa/stand.h>
     36 #include <lib/libsa/bootp.h>
     37 #include <lib/libkern/libkern.h>
     38 
     39 #include "extern.h"
     40 
     41 extern struct in_addr	servip;
     42 
     43 static int	netdev_sock = -1;
     44 
     45 int
     46 net_strategy(void *devdata, int rw, daddr_t blk,
     47 	     size_t size, void *buf , size_t *rsize)
     48 {
     49 	return EIO;
     50 }
     51 
     52 int
     53 net_open(struct open_file *f, ...)
     54 {
     55 	char		*fname;
     56 	char		**file;
     57 	struct iodesc	*s;
     58 	va_list		ap;
     59 
     60 	va_start(ap, f);
     61 	fname = va_arg(ap, char *);
     62 	file = va_arg(ap, char **);
     63 	va_end(ap);
     64 
     65 	f->f_devdata = &netdev_sock;
     66 	netdev_sock = netif_open(NULL);
     67 
     68 	bootfile[0] = '\0';
     69 	if (bootopts.b_flags & B_F_USE_BOOTP) {
     70 		s = socktodesc(netdev_sock);
     71 		bootp(netdev_sock);
     72 		if (fname[0] != '\0')
     73 			strlcpy(bootfile, fname, sizeof bootfile);
     74 	} else {
     75 		s = socktodesc(netdev_sock);
     76 
     77 		servip = s->destip = bootopts.b_remote_ip;
     78 		myip = s->myip = bootopts.b_local_ip;
     79 		netmask = bootopts.b_netmask;
     80 		gateip = bootopts.b_gate_ip;
     81 
     82 		if (fname[0] == '\0') {
     83 			printf("no boot filename\n");
     84 			netif_close(netdev_sock);
     85 			return EIO;
     86 		}
     87 		strlcpy(bootfile, fname, sizeof bootfile);
     88 	}
     89 
     90 	*file = bootfile;
     91 
     92 	return 0;
     93 }
     94 
     95 int
     96 net_close(struct open_file *f)
     97 {
     98 	int	sock;
     99 
    100 	sock = *((int *) f->f_devdata);
    101 	netif_close(sock);
    102 	f->f_devdata = NULL;
    103 	return 0;
    104 }
    105 
    106 int
    107 net_ioctl(struct open_file *f, u_long cmd, void *data)
    108 {
    109 	return EIO;
    110 }
    111