diff options
Diffstat (limited to 'sys/arch/amd64/stand/cdboot/cdboot.c')
| -rw-r--r-- | sys/arch/amd64/stand/cdboot/cdboot.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/sys/arch/amd64/stand/cdboot/cdboot.c b/sys/arch/amd64/stand/cdboot/cdboot.c new file mode 100644 index 00000000000..0f129b1b410 --- /dev/null +++ b/sys/arch/amd64/stand/cdboot/cdboot.c @@ -0,0 +1,125 @@ +/* $OpenBSD: cdboot.c,v 1.1 2004/08/24 15:34:59 tom Exp $ */ + +/* + * Copyright (c) 2003 Dale Rahn + * Copyright (c) 1997,1998 Michael Shalayeff + * 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 ``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 REGENTS 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 <sys/reboot.h> +#include <sys/stat.h> +#include <libsa.h> +#include <lib/libsa/loadfile.h> +#include <lib/libkern/funcs.h> + +#include "../../../../stand/boot/cmd.h" + +static const char *const kernels[] = { + "/" OSREV "/" MACHINE "/bsd.rd", + "/bsd", + "/obsd", + "/bsd.old", + NULL +}; + +char prog_ident[40]; +char *progname = "BOOT"; + +extern const char version[]; +struct cmd_state cmd; + +/* bootprompt can be set by MD code to avoid prompt first time round */ +int bootprompt = 1; + +void +boot(dev_t bootdev) +{ + const char *bootfile = kernels[0]; + int i = 0, try = 0, st; + u_long marks[MARK_MAX]; + + machdep(); + + snprintf(prog_ident, sizeof(prog_ident), + ">> OpenBSD/" MACHINE " %s %s", progname, version); + printf("%s\n", prog_ident); + + devboot(bootdev, cmd.bootdev); + strlcpy(cmd.image, bootfile, sizeof(cmd.image)); + cmd.boothowto = 0; + cmd.conf = "/etc/boot.conf"; + cmd.addr = (void *)DEFAULT_KERNEL_ADDRESS; + cmd.timeout = 5; + + st = read_conf(); + if (!bootprompt) + snprintf(cmd.path, sizeof cmd.path, "%s:%s", + cmd.bootdev, cmd.image); + + while (1) { + /* no boot.conf, or no boot cmd in there */ + if (bootprompt && st <= 0) + do { + printf("boot> "); + } while(!getcmd()); + st = 0; + bootprompt = 1; /* allow reselect should we fail */ + + printf("booting %s: ", cmd.path); + marks[MARK_START] = (u_long)cmd.addr; + if (loadfile(cmd.path, marks, LOAD_ALL) >= 0) + break; + + if (kernels[++i] == NULL) { + try += 1; + bootfile = kernels[i=0]; + } else + bootfile = kernels[i]; + strlcpy(cmd.image, bootfile, sizeof(cmd.image)); + printf(" failed(%d). will try %s\n", errno, bootfile); + + if (try < 2) { + if (cmd.timeout > 0) + cmd.timeout++; + } else { + if (cmd.timeout) + printf("Turning timeout off.\n"); + cmd.timeout = 0; + } + } + + /* exec */ + run_loadfile(marks, cmd.boothowto); +} + +#ifdef _TEST +int +main() +{ + boot(0); + return 0; +} +#endif |