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-rw-r--r--sys/boot/common/boot.c410
1 files changed, 0 insertions, 410 deletions
diff --git a/sys/boot/common/boot.c b/sys/boot/common/boot.c
deleted file mode 100644
index 5ee95215283c..000000000000
--- a/sys/boot/common/boot.c
+++ /dev/null
@@ -1,410 +0,0 @@
-/*-
- * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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("$FreeBSD$");
-
-/*
- * Loading modules, booting the system
- */
-
-#include <stand.h>
-#include <string.h>
-
-#include "bootstrap.h"
-
-static char *getbootfile(int try);
-static int loadakernel(int try, int argc, char* argv[]);
-
-/* List of kernel names to try (may be overwritten by boot.config) XXX should move from here? */
-static const char *default_bootfiles = "kernel";
-
-static int autoboot_tried;
-
-/*
- * The user wants us to boot.
- */
-COMMAND_SET(boot, "boot", "boot a file or loaded kernel", command_boot);
-
-static int
-command_boot(int argc, char *argv[])
-{
- struct preloaded_file *fp;
-
- /*
- * See if the user has specified an explicit kernel to boot.
- */
- if ((argc > 1) && (argv[1][0] != '-')) {
-
- /* XXX maybe we should discard everything and start again? */
- if (file_findfile(NULL, NULL) != NULL) {
- snprintf(command_errbuf, sizeof(command_errbuf),
- "can't boot '%s', kernel module already loaded", argv[1]);
- return(CMD_ERROR);
- }
-
- /* find/load the kernel module */
- if (mod_loadkld(argv[1], argc - 2, argv + 2) != 0)
- return(CMD_ERROR);
- /* we have consumed all arguments */
- argc = 1;
- }
-
- /*
- * See if there is a kernel module already loaded
- */
- if (file_findfile(NULL, NULL) == NULL)
- if (loadakernel(0, argc - 1, argv + 1))
- /* we have consumed all arguments */
- argc = 1;
-
- /*
- * Loaded anything yet?
- */
- if ((fp = file_findfile(NULL, NULL)) == NULL) {
- command_errmsg = "no bootable kernel";
- return(CMD_ERROR);
- }
-
- /*
- * If we were given arguments, discard any previous.
- * XXX should we merge arguments? Hard to DWIM.
- */
- if (argc > 1) {
- if (fp->f_args != NULL)
- free(fp->f_args);
- fp->f_args = unargv(argc - 1, argv + 1);
- }
-
- /* Hook for platform-specific autoloading of modules */
- if (archsw.arch_autoload() != 0)
- return(CMD_ERROR);
-
- /* Call the exec handler from the loader matching the kernel */
- file_formats[fp->f_loader]->l_exec(fp);
- return(CMD_ERROR);
-}
-
-
-/*
- * Autoboot after a delay
- */
-
-COMMAND_SET(autoboot, "autoboot", "boot automatically after a delay", command_autoboot);
-
-static int
-command_autoboot(int argc, char *argv[])
-{
- int howlong;
- char *cp, *prompt;
-
- prompt = NULL;
- howlong = -1;
- switch(argc) {
- case 3:
- prompt = argv[2];
- /* FALLTHROUGH */
- case 2:
- howlong = strtol(argv[1], &cp, 0);
- if (*cp != 0) {
- snprintf(command_errbuf, sizeof(command_errbuf),
- "bad delay '%s'", argv[1]);
- return(CMD_ERROR);
- }
- /* FALLTHROUGH */
- case 1:
- return(autoboot(howlong, prompt));
- }
-
- command_errmsg = "too many arguments";
- return(CMD_ERROR);
-}
-
-/*
- * Called before we go interactive. If we think we can autoboot, and
- * we haven't tried already, try now.
- */
-void
-autoboot_maybe()
-{
- char *cp;
-
- cp = getenv("autoboot_delay");
- if ((autoboot_tried == 0) && ((cp == NULL) || strcasecmp(cp, "NO")))
- autoboot(-1, NULL); /* try to boot automatically */
-}
-
-int
-autoboot(int timeout, char *prompt)
-{
- time_t when, otime, ntime;
- int c, yes;
- char *argv[2], *cp, *ep;
- char *kernelname;
-#ifdef BOOT_PROMPT_123
- const char *seq = "123", *p = seq;
-#endif
-
- autoboot_tried = 1;
-
- if (timeout == -1) {
- timeout = 10;
- /* try to get a delay from the environment */
- if ((cp = getenv("autoboot_delay"))) {
- timeout = strtol(cp, &ep, 0);
- if (cp == ep)
- timeout = 10; /* Unparseable? Set default! */
- }
- }
-
- kernelname = getenv("kernelname");
- if (kernelname == NULL) {
- argv[0] = NULL;
- loadakernel(0, 0, argv);
- kernelname = getenv("kernelname");
- if (kernelname == NULL) {
- command_errmsg = "no valid kernel found";
- return(CMD_ERROR);
- }
- }
-
- if (timeout >= 0) {
- otime = time(NULL);
- when = otime + timeout; /* when to boot */
-
- yes = 0;
-
-#ifdef BOOT_PROMPT_123
- printf("%s\n", (prompt == NULL) ? "Hit [Enter] to boot immediately, or "
- "1 2 3 sequence for command prompt." : prompt);
-#else
- printf("%s\n", (prompt == NULL) ? "Hit [Enter] to boot immediately, or any other key for command prompt." : prompt);
-#endif
-
- for (;;) {
- if (ischar()) {
- c = getchar();
-#ifdef BOOT_PROMPT_123
- if ((c == '\r') || (c == '\n')) {
- yes = 1;
- break;
- } else if (c != *p++)
- p = seq;
- if (*p == 0)
- break;
-#else
- if ((c == '\r') || (c == '\n'))
- yes = 1;
- break;
-#endif
- }
- ntime = time(NULL);
- if (ntime >= when) {
- yes = 1;
- break;
- }
-
- if (ntime != otime) {
- printf("\rBooting [%s] in %d second%s... ",
- kernelname, (int)(when - ntime),
- (when-ntime)==1?"":"s");
- otime = ntime;
- }
- }
- } else {
- yes = 1;
- }
-
- if (yes)
- printf("\rBooting [%s]... ", kernelname);
- putchar('\n');
- if (yes) {
- argv[0] = "boot";
- argv[1] = NULL;
- return(command_boot(1, argv));
- }
- return(CMD_OK);
-}
-
-/*
- * Scrounge for the name of the (try)'th file we will try to boot.
- */
-static char *
-getbootfile(int try)
-{
- static char *name = NULL;
- const char *spec, *ep;
- size_t len;
-
- /* we use dynamic storage */
- if (name != NULL) {
- free(name);
- name = NULL;
- }
-
- /*
- * Try $bootfile, then try our builtin default
- */
- if ((spec = getenv("bootfile")) == NULL)
- spec = default_bootfiles;
-
- while ((try > 0) && (spec != NULL)) {
- spec = strchr(spec, ';');
- if (spec)
- spec++; /* skip over the leading ';' */
- try--;
- }
- if (spec != NULL) {
- if ((ep = strchr(spec, ';')) != NULL) {
- len = ep - spec;
- } else {
- len = strlen(spec);
- }
- name = malloc(len + 1);
- strncpy(name, spec, len);
- name[len] = 0;
- }
- if (name && name[0] == 0) {
- free(name);
- name = NULL;
- }
- return(name);
-}
-
-/*
- * Try to find the /etc/fstab file on the filesystem (rootdev),
- * which should be be the root filesystem, and parse it to find
- * out what the kernel ought to think the root filesystem is.
- *
- * If we're successful, set vfs.root.mountfrom to <vfstype>:<path>
- * so that the kernel can tell both which VFS and which node to use
- * to mount the device. If this variable's already set, don't
- * overwrite it.
- */
-int
-getrootmount(char *rootdev)
-{
- char lbuf[128], *cp, *ep, *dev, *fstyp, *options;
- int fd, error;
-
- if (getenv("vfs.root.mountfrom") != NULL)
- return(0);
-
- error = 1;
- sprintf(lbuf, "%s/etc/fstab", rootdev);
- if ((fd = open(lbuf, O_RDONLY)) < 0)
- goto notfound;
-
- /* loop reading lines from /etc/fstab What was that about sscanf again? */
- while (fgetstr(lbuf, sizeof(lbuf), fd) >= 0) {
- if ((lbuf[0] == 0) || (lbuf[0] == '#'))
- continue;
-
- /* skip device name */
- for (cp = lbuf; (*cp != 0) && !isspace(*cp); cp++)
- ;
- if (*cp == 0) /* misformatted */
- continue;
- /* delimit and save */
- *cp++ = 0;
- dev = strdup(lbuf);
-
- /* skip whitespace up to mountpoint */
- while ((*cp != 0) && isspace(*cp))
- cp++;
- /* must have /<space> to be root */
- if ((*cp == 0) || (*cp != '/') || !isspace(*(cp + 1)))
- continue;
- /* skip whitespace up to fstype */
- cp += 2;
- while ((*cp != 0) && isspace(*cp))
- cp++;
- if (*cp == 0) /* misformatted */
- continue;
- /* skip text to end of fstype and delimit */
- ep = cp;
- while ((*cp != 0) && !isspace(*cp))
- cp++;
- *cp = 0;
- fstyp = strdup(ep);
-
- /* skip whitespace up to mount options */
- cp += 1;
- while ((*cp != 0) && isspace(*cp))
- cp++;
- if (*cp == 0) /* misformatted */
- continue;
- /* skip text to end of mount options and delimit */
- ep = cp;
- while ((*cp != 0) && !isspace(*cp))
- cp++;
- *cp = 0;
- options = strdup(ep);
- /* Build the <fstype>:<device> and save it in vfs.root.mountfrom */
- sprintf(lbuf, "%s:%s", fstyp, dev);
- free(dev);
- free(fstyp);
- setenv("vfs.root.mountfrom", lbuf, 0);
-
- /* Don't override vfs.root.mountfrom.options if it is already set */
- if (getenv("vfs.root.mountfrom.options") == NULL) {
- /* save mount options */
- setenv("vfs.root.mountfrom.options", options, 0);
- }
- free(options);
- error = 0;
- break;
- }
- close(fd);
-
-notfound:
- if (error) {
- const char *currdev;
-
- currdev = getenv("currdev");
- if (currdev != NULL && strncmp("zfs:", currdev, 4) == 0) {
- cp = strdup(currdev);
- cp[strlen(cp) - 1] = '\0';
- setenv("vfs.root.mountfrom", cp, 0);
- error = 0;
- }
- }
-
- return(error);
-}
-
-static int
-loadakernel(int try, int argc, char* argv[])
-{
- char *cp;
-
- for (try = 0; (cp = getbootfile(try)) != NULL; try++)
- if (mod_loadkld(cp, argc - 1, argv + 1) != 0)
- printf("can't load '%s'\n", cp);
- else
- return 1;
- return 0;
-}
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