/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Fleischer <[email protected]>
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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 <sys/param.h>

#include <netinet/in.h>
#include <netinet/in_systm.h>

#include <lib/libsa/stand.h>
#include <lib/libsa/net.h>
#include <lib/libsa/bootp.h>
#include <lib/libsa/nfs.h>

#include <lib/libkern/libkern.h>


extern int netif_open(void*);
extern int netif_init(unsigned int tag);

extern struct in_addr servip;

static int netdev_sock = -1;

int
net_open(struct open_file *f, ...)
{
       va_list ap;
       char *path, *proto;
       int error = 0;

       if( netif_init(0) == 0 ) {
               error = ENODEV;
               goto out;
       }

       va_start(ap, f);
       path = va_arg(ap, char *);
       proto = va_arg(ap, char *);
       va_end(ap);
       if ((netdev_sock = netif_open(path)) < 0) {
               error = errno;
               goto out;
       }

       /* send DHCP request */
       bootp(netdev_sock);

       /* IP address was not found */
       if (myip.s_addr == 0) {
               error = ENOENT;
               goto out;
       }

       if (path[0] != '\0') {
               char *c;
               char ip_addr[200];
               /* Parse path specification as IP-ADDR:PATH and overwrite
                  rootip and rootpath with those
                */

               for(c=path; *c != '\0' && *c != ':'; c++);

               if (*c == ':') {
                       char *filename;
                       strncpy(ip_addr, path, (c-path));
                       ip_addr[(c-path)] = '\0';
                       printf("IP addr: %s\n", ip_addr);
                       rootip.s_addr = inet_addr(ip_addr);

                       c++;
                       /* Finally, strip away file-component and copy it to
                          bootfile */
                       for(filename = c+strlen(c); *filename != '/' && filename > c; filename--);
                       strncpy(rootpath, c, (filename-c));
                       rootpath[(filename-c)] = '\0';
                       printf("Root path: %s\n", rootpath);
                       strcpy(bootfile, ++filename);
                       printf("Bootfile: %s\n", bootfile);
               } else {
                       /* No ':' found, assume it's just a filename */
                       strcpy(bootfile, path);
               }
       }

       /* boot filename was not found */
       if (bootfile[0] == '\0')
               strcpy(bootfile, "netbsd");

       if (strcmp(proto, "nfs") == 0
           && (nfs_mount(netdev_sock, rootip, rootpath) != 0)) {
               error = errno;
               goto out;
       }

       f->f_devdata = &netdev_sock;
out:
       return (error);
}

int
net_close(struct open_file *f)

{
       return (0);
}

int
net_strategy(void *d, int f, daddr_t b, size_t s, void *buf, size_t *r)
{

       return (EIO);
}