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
net_strategy(void * devdata,int rw,daddr_t blk,size_t size,void * buf,size_t * rsize)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
net_open(struct open_file * f,...)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
net_close(struct open_file * f)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
net_ioctl(struct open_file * f,u_long cmd,void * data)107 net_ioctl(struct open_file *f, u_long cmd, void *data)
108 {
109 return EIO;
110 }
111