diff options
Diffstat (limited to 'sys/arch/aviion/stand/netboot/dev_net.c')
| -rw-r--r-- | sys/arch/aviion/stand/netboot/dev_net.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/sys/arch/aviion/stand/netboot/dev_net.c b/sys/arch/aviion/stand/netboot/dev_net.c new file mode 100644 index 00000000000..1b3355605c4 --- /dev/null +++ b/sys/arch/aviion/stand/netboot/dev_net.c @@ -0,0 +1,193 @@ +/* $OpenBSD: dev_net.c,v 1.1 2006/05/16 22:48:18 miod Exp $ */ + +/* + * Copyright (c) 1995 Gordon W. Ross + * All rights reserved. + * + * 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. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * 4. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Gordon W. Ross + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. + */ + +/* + * This module implements a "raw device" interface suitable for + * use by the stand-alone I/O library NFS code. This interface + * does not support any "block" access, and exists only for the + * purpose of initializing the network interface, getting boot + * parameters, and performing the NFS mount. + * + * At open time, this does: + * + * find interface - netif_open() + * RARP for IP address - rarp_getipaddress() + * RPC/bootparams - callrpc(d, RPC_BOOTPARAMS, ...) + * RPC/mountd - nfs_mount(sock, ip, path) + * + * the root file handle from mountd is saved in a global + * for use by the NFS open code (NFS/lookup). + */ + +#include <sys/param.h> +#include <sys/socket.h> +#include <net/if.h> +#include <netinet/in.h> +#include <netinet/if_ether.h> +#include <netinet/in_systm.h> + +#include <machine/prom.h> + +#include "stand.h" +#include "libsa.h" +#include "prom.h" +#include "net.h" +#include "netif.h" +#include "bootparam.h" +#include "nfs.h" + +extern int nfs_root_node[]; /* XXX - get from nfs_mount() */ + +struct in_addr myip, rootip, gateip, mask; +char rootpath[FNAME_SIZE]; + +int netdev_sock = -1; +static int open_count; + +int net_mountroot(struct open_file *, char *); + +/* + * Called by devopen after it sets f->f_dev to our devsw entry. + * This opens the low-level device and sets f->f_devdata. + */ +int +net_open(f, devname) + struct open_file *f; + char *devname; /* Device part of file name (or NULL). */ +{ + int error = 0; + + /* On first open, do netif open, mount, etc. */ + if (open_count == 0) { + /* Find network interface. */ + if ((netdev_sock = netif_open(devname)) < 0) + return (error=ENXIO); + if ((error = net_mountroot(f, devname)) != 0) + return (error); + } + open_count++; + f->f_devdata = nfs_root_node; + return (error); +} + +int +net_close(f) + struct open_file *f; +{ + /* On last close, do netif close, etc. */ + if (open_count > 0) + if (--open_count == 0) + netif_close(netdev_sock); + f->f_devdata = NULL; + return (0); +} + +int +net_ioctl() +{ + return EIO; +} + +int +net_strategy() +{ + return EIO; +} + +int +net_mountroot(f, devname) + struct open_file *f; + char *devname; /* Device part of file name (or NULL). */ +{ + int error; + +#ifdef DEBUG + printf("net_mountroot: %s\n", devname); +#endif + + /* + * Get info for NFS boot: our IP address, our hostname, + * server IP address, and our root path on the server. + * There are two ways to do this: The old, Sun way, + * and the more modern, BOOTP way. (RFC951, RFC1048) + */ + +#ifdef SUN_BOOTPARAMS + /* Get boot info using RARP and Sun bootparams. */ + + /* Get our IP address. (rarp.c) */ + if (rarp_getipaddress(netdev_sock) == -1) + return (EIO); + printf("boot: client IP address: %s\n", intoa(myip.s_addr)); + + /* Get our hostname, server IP address. */ + if (bp_whoami(netdev_sock)) + return (EIO); + printf("boot: client name: %s\n", hostname); + + /* Get the root pathname. */ + if (bp_getfile(netdev_sock, "root", &rootip, rootpath)) + return (EIO); + +#else + + /* Get boot info using BOOTP way. (RFC951, RFC1048) */ + bootp(netdev_sock); + + printf("Using IP address: %s\n", intoa(myip.s_addr)); + + printf("myip: %s (%s)", hostname, intoa(myip)); + if (gateip) + printf(", gateip: %s", intoa(gateip)); + if (mask) + printf(", mask: %s", intoa(mask)); + printf("\n"); + +#endif + + printf("root addr=%s path=%s\n", intoa(rootip.s_addr), rootpath); + + /* Get the NFS file handle (mount). */ + error = nfs_mount(netdev_sock, rootip, rootpath); + + return (error); +} + +/* + * machdep_common_ether: get ethernet address + */ +void +machdep_common_ether(ether) + u_char *ether; +{ + scm_getenaddr(ether); +} |