diff options
Diffstat (limited to 'sys/boot/common/dev_net.c')
| -rw-r--r-- | sys/boot/common/dev_net.c | 435 |
1 files changed, 0 insertions, 435 deletions
diff --git a/sys/boot/common/dev_net.c b/sys/boot/common/dev_net.c deleted file mode 100644 index c5b1e0abd92b..000000000000 --- a/sys/boot/common/dev_net.c +++ /dev/null @@ -1,435 +0,0 @@ -/* $NetBSD: dev_net.c,v 1.23 2008/04/28 20:24:06 martin Exp $ */ - -/*- - * Copyright (c) 1997 The NetBSD Foundation, Inc. - * All rights reserved. - * - * This code is derived from software contributed to The NetBSD Foundation - * by Gordon W. Ross. - * - * 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/cdefs.h> -__FBSDID("$FreeBSD$"); - -/*- - * 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 <machine/stdarg.h> -#include <sys/param.h> -#include <sys/socket.h> -#include <net/if.h> -#include <netinet/in.h> -#include <netinet/in_systm.h> - -#include <stand.h> -#include <stddef.h> -#include <string.h> -#include <net.h> -#include <netif.h> -#include <bootp.h> -#include <bootparam.h> - -#include "dev_net.h" -#include "bootstrap.h" - -#ifdef NETIF_DEBUG -int debug = 0; -#endif - -static char *netdev_name; -static int netdev_sock = -1; -static int netdev_opens; - -static int net_init(void); -static int net_open(struct open_file *, ...); -static int net_close(struct open_file *); -static void net_cleanup(void); -static int net_strategy(void *, int, daddr_t, size_t, char *, size_t *); -static int net_print(int); - -static int net_getparams(int sock); - -struct devsw netdev = { - "net", - DEVT_NET, - net_init, - net_strategy, - net_open, - net_close, - noioctl, - net_print, - net_cleanup -}; - -static struct uri_scheme { - const char *scheme; - int proto; -} uri_schemes[] = { - { "tftp:/", NET_TFTP }, - { "nfs:/", NET_NFS }, -}; - -static int -net_init(void) -{ - - return (0); -} - -/* - * Called by devopen after it sets f->f_dev to our devsw entry. - * This opens the low-level device and sets f->f_devdata. - * This is declared with variable arguments... - */ -static int -net_open(struct open_file *f, ...) -{ - struct iodesc *d; - va_list args; - char *devname; /* Device part of file name (or NULL). */ - int error = 0; - - va_start(args, f); - devname = va_arg(args, char*); - va_end(args); - - /* Before opening another interface, close the previous one first. */ - if (netdev_sock >= 0 && strcmp(devname, netdev_name) != 0) - net_cleanup(); - - /* On first open, do netif open, mount, etc. */ - if (netdev_opens == 0) { - /* Find network interface. */ - if (netdev_sock < 0) { - netdev_sock = netif_open(devname); - if (netdev_sock < 0) { - printf("net_open: netif_open() failed\n"); - return (ENXIO); - } - netdev_name = strdup(devname); -#ifdef NETIF_DEBUG - if (debug) - printf("net_open: netif_open() succeeded\n"); -#endif - } - /* - * If network params were not set by netif_open(), try to get - * them via bootp, rarp, etc. - */ - if (rootip.s_addr == 0) { - /* Get root IP address, and path, etc. */ - error = net_getparams(netdev_sock); - if (error) { - /* getparams makes its own noise */ - free(netdev_name); - netif_close(netdev_sock); - netdev_sock = -1; - return (error); - } - } - /* - * Set the variables required by the kernel's nfs_diskless - * mechanism. This is the minimum set of variables required to - * mount a root filesystem without needing to obtain additional - * info from bootp or other sources. - */ - d = socktodesc(netdev_sock); - setenv("boot.netif.hwaddr", ether_sprintf(d->myea), 1); - setenv("boot.netif.ip", inet_ntoa(myip), 1); - setenv("boot.netif.netmask", intoa(netmask), 1); - setenv("boot.netif.gateway", inet_ntoa(gateip), 1); - setenv("boot.netif.server", inet_ntoa(rootip), 1); - if (netproto == NET_TFTP) { - setenv("boot.tftproot.server", inet_ntoa(rootip), 1); - setenv("boot.tftproot.path", rootpath, 1); - } else if (netproto == NET_NFS) { - setenv("boot.nfsroot.server", inet_ntoa(rootip), 1); - setenv("boot.nfsroot.path", rootpath, 1); - } - if (intf_mtu != 0) { - char mtu[16]; - snprintf(mtu, sizeof(mtu), "%u", intf_mtu); - setenv("boot.netif.mtu", mtu, 1); - } - - } - netdev_opens++; - f->f_devdata = &netdev_sock; - return (error); -} - -static int -net_close(struct open_file *f) -{ - -#ifdef NETIF_DEBUG - if (debug) - printf("net_close: opens=%d\n", netdev_opens); -#endif - - f->f_devdata = NULL; - - return (0); -} - -static void -net_cleanup(void) -{ - - if (netdev_sock >= 0) { -#ifdef NETIF_DEBUG - if (debug) - printf("net_cleanup: calling netif_close()\n"); -#endif - rootip.s_addr = 0; - free(netdev_name); - netif_close(netdev_sock); - netdev_sock = -1; - } -} - -static int -net_strategy(void *devdata, int rw, daddr_t blk, size_t size, char *buf, - size_t *rsize) -{ - - return (EIO); -} - -#define SUPPORT_BOOTP - -/* - * 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) - * - * The default is to use the Sun bootparams RPC - * (because that is what the kernel will do). - * MD code can make try_bootp initialied data, - * which will override this common definition. - */ -#ifdef SUPPORT_BOOTP -int try_bootp = 1; -#endif - -extern n_long ip_convertaddr(char *p); - -static int -net_getparams(int sock) -{ - char buf[MAXHOSTNAMELEN]; - n_long rootaddr, smask; - -#ifdef SUPPORT_BOOTP - /* - * Try to get boot info using BOOTP. If we succeed, then - * the server IP address, gateway, and root path will all - * be initialized. If any remain uninitialized, we will - * use RARP and RPC/bootparam (the Sun way) to get them. - */ - if (try_bootp) - bootp(sock); - if (myip.s_addr != 0) - goto exit; -#ifdef NETIF_DEBUG - if (debug) - printf("net_open: BOOTP failed, trying RARP/RPC...\n"); -#endif -#endif - - /* - * Use RARP to get our IP address. This also sets our - * netmask to the "natural" default for our address. - */ - if (rarp_getipaddress(sock)) { - printf("net_open: RARP failed\n"); - return (EIO); - } - printf("net_open: client addr: %s\n", inet_ntoa(myip)); - - /* Get our hostname, server IP address, gateway. */ - if (bp_whoami(sock)) { - printf("net_open: bootparam/whoami RPC failed\n"); - return (EIO); - } -#ifdef NETIF_DEBUG - if (debug) - printf("net_open: client name: %s\n", hostname); -#endif - - /* - * Ignore the gateway from whoami (unreliable). - * Use the "gateway" parameter instead. - */ - smask = 0; - gateip.s_addr = 0; - if (bp_getfile(sock, "gateway", &gateip, buf) == 0) { - /* Got it! Parse the netmask. */ - smask = ip_convertaddr(buf); - } - if (smask) { - netmask = smask; -#ifdef NETIF_DEBUG - if (debug) - printf("net_open: subnet mask: %s\n", intoa(netmask)); -#endif - } -#ifdef NETIF_DEBUG - if (gateip.s_addr && debug) - printf("net_open: net gateway: %s\n", inet_ntoa(gateip)); -#endif - - /* Get the root server and pathname. */ - if (bp_getfile(sock, "root", &rootip, rootpath)) { - printf("net_open: bootparam/getfile RPC failed\n"); - return (EIO); - } -exit: - if ((rootaddr = net_parse_rootpath()) != INADDR_NONE) - rootip.s_addr = rootaddr; - -#ifdef NETIF_DEBUG - if (debug) { - printf("net_open: server addr: %s\n", inet_ntoa(rootip)); - printf("net_open: server path: %s\n", rootpath); - } -#endif - - return (0); -} - -static int -net_print(int verbose) -{ - struct netif_driver *drv; - int i, d, cnt; - int ret = 0; - - if (netif_drivers[0] == NULL) - return (ret); - - printf("%s devices:", netdev.dv_name); - if ((ret = pager_output("\n")) != 0) - return (ret); - - cnt = 0; - for (d = 0; netif_drivers[d]; d++) { - drv = netif_drivers[d]; - for (i = 0; i < drv->netif_nifs; i++) { - printf("\t%s%d:", netdev.dv_name, cnt++); - if (verbose) { - printf(" (%s%d)", drv->netif_bname, - drv->netif_ifs[i].dif_unit); - } - if ((ret = pager_output("\n")) != 0) - return (ret); - } - } - return (ret); -} - -/* - * Parses the rootpath if present - * - * The rootpath format can be in the form - * <scheme>://ip/path - * <scheme>:/path - * - * For compatibility with previous behaviour it also accepts as an NFS scheme - * ip:/path - * /path - * - * If an ip is set it returns it in network byte order. - * The default scheme defined in the global netproto, if not set it defaults to - * NFS. - * It leaves just the pathname in the global rootpath. - */ -uint32_t -net_parse_rootpath() -{ - n_long addr = htonl(INADDR_NONE); - size_t i; - char ip[FNAME_SIZE]; - char *ptr, *val; - - netproto = NET_NONE; - - for (i = 0; i < nitems(uri_schemes); i++) { - if (strncmp(rootpath, uri_schemes[i].scheme, - strlen(uri_schemes[i].scheme)) != 0) - continue; - - netproto = uri_schemes[i].proto; - break; - } - ptr = rootpath; - /* Fallback for compatibility mode */ - if (netproto == NET_NONE) { - netproto = NET_NFS; - (void)strsep(&ptr, ":"); - if (ptr != NULL) { - addr = inet_addr(rootpath); - bcopy(ptr, rootpath, strlen(ptr) + 1); - } - } else { - ptr += strlen(uri_schemes[i].scheme); - if (*ptr == '/') { - /* we are in the form <scheme>://, we do expect an ip */ - ptr++; - /* - * XXX when http will be there we will need to check for - * a port, but right now we do not need it yet - */ - val = strchr(ptr, '/'); - if (val != NULL) { - snprintf(ip, sizeof(ip), "%.*s", - (int)((uintptr_t)val - (uintptr_t)ptr), - ptr); - addr = inet_addr(ip); - bcopy(val, rootpath, strlen(val) + 1); - } - } else { - ptr--; - bcopy(ptr, rootpath, strlen(ptr) + 1); - } - } - - return (addr); -} |