1 /* $NetBSD: dev_net.c,v 1.3 2005/12/11 12:17:34 christos 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 1.3 2005/12/11 12:17:34 christos 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 #include <machine/stdarg.h> 39 40 #include "extern.h" 41 42 extern struct in_addr servip; 43 44 static int netdev_sock = -1; 45 46 int 47 net_strategy(void *devdata, int rw, daddr_t blk, 48 size_t size, void *buf , size_t *rsize) 49 { 50 return EIO; 51 } 52 53 int 54 net_open(struct open_file *f, ...) 55 { 56 char *fname; 57 char **file; 58 struct iodesc *s; 59 va_list ap; 60 61 va_start(ap, f); 62 fname = va_arg(ap, char *); 63 file = va_arg(ap, char **); 64 va_end(ap); 65 66 f->f_devdata = &netdev_sock; 67 netdev_sock = netif_open(NULL); 68 69 bootfile[0] = '\0'; 70 if (bootopts.b_flags & B_F_USE_BOOTP) { 71 s = socktodesc(netdev_sock); 72 bootp(netdev_sock); 73 if (fname[0] != '\0') 74 strlcpy(bootfile, fname, sizeof bootfile); 75 } else { 76 s = socktodesc(netdev_sock); 77 78 servip = s->destip = bootopts.b_remote_ip; 79 myip = s->myip = bootopts.b_local_ip; 80 netmask = bootopts.b_netmask; 81 gateip = bootopts.b_gate_ip; 82 83 if (fname[0] == '\0') { 84 printf("no boot filename\n"); 85 netif_close(netdev_sock); 86 return EIO; 87 } 88 strlcpy(bootfile, fname, sizeof bootfile); 89 } 90 91 *file = bootfile; 92 93 return 0; 94 } 95 96 int 97 net_close(struct open_file *f) 98 { 99 int sock; 100 101 sock = *((int *) f->f_devdata); 102 netif_close(sock); 103 f->f_devdata = NULL; 104 return 0; 105 } 106 107 int 108 net_ioctl(struct open_file *f, u_long cmd, void *data) 109 { 110 return EIO; 111 } 112