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138 lines
3.5 KiB
C
138 lines
3.5 KiB
C
/*-
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* Copyright (c) 2012 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Paul Fleischer <paul@xpg.dk>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <lib/libsa/stand.h>
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#include <lib/libsa/net.h>
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#include <lib/libsa/bootp.h>
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#include <lib/libsa/nfs.h>
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#include <lib/libkern/libkern.h>
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extern int netif_open(void*);
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extern int netif_init(unsigned int tag);
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extern struct in_addr servip;
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static int netdev_sock = -1;
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int
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net_open(struct open_file *f, ...)
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{
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va_list ap;
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char *path, *proto;
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int error = 0;
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if( netif_init(0) == 0 ) {
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error = ENODEV;
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goto out;
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}
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va_start(ap, f);
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path = va_arg(ap, char *);
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proto = va_arg(ap, char *);
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va_end(ap);
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if ((netdev_sock = netif_open(path)) < 0) {
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error = errno;
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goto out;
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}
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/* send DHCP request */
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bootp(netdev_sock);
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/* IP address was not found */
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if (myip.s_addr == 0) {
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error = ENOENT;
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goto out;
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}
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if (path[0] != '\0') {
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char *c;
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char ip_addr[200];
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/* Parse path specification as IP-ADDR:PATH and overwrite
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rootip and rootpath with those
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*/
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for(c=path; *c != '\0' && *c != ':'; c++);
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if (*c == ':') {
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char *filename;
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strncpy(ip_addr, path, (c-path));
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ip_addr[(c-path)] = '\0';
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printf("IP addr: %s\n", ip_addr);
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rootip.s_addr = inet_addr(ip_addr);
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c++;
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/* Finally, strip away file-component and copy it to
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bootfile */
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for(filename = c+strlen(c); *filename != '/' && filename > c; filename--);
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strncpy(rootpath, c, (filename-c));
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rootpath[(filename-c)] = '\0';
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printf("Root path: %s\n", rootpath);
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strcpy(bootfile, ++filename);
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printf("Bootfile: %s\n", bootfile);
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} else {
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/* No ':' found, assume it's just a filename */
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strcpy(bootfile, path);
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}
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}
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/* boot filename was not found */
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if (bootfile[0] == '\0')
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strcpy(bootfile, "netbsd");
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if (strcmp(proto, "nfs") == 0
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&& (nfs_mount(netdev_sock, rootip, rootpath) != 0)) {
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error = errno;
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goto out;
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}
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f->f_devdata = &netdev_sock;
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out:
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return (error);
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}
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int
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net_close(struct open_file *f)
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{
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return (0);
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}
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int
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net_strategy(void *d, int f, daddr_t b, size_t s, void *buf, size_t *r)
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{
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return (EIO);
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}
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