/* $OpenBSD: sparc64_installboot.c,v 1.11 2022/09/05 11:12:20 kn Exp $ */ /* * Copyright (c) 2012, 2013 Joel Sing * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include /* DEV_BSIZE */ #include #include #include #include #include #include #include #include #include "installboot.h" char *bootldr; char *blkstore; char *ldrstore; size_t blksize; size_t ldrsize; void md_init(void) { stages = 2; stage1 = "/usr/mdec/bootblk"; stage2 = "/usr/mdec/ofwboot"; bootldr = "/ofwboot"; } void md_loadboot(void) { struct stat sb; size_t blocks; int fd; /* Load first-stage boot block. */ if ((fd = open(stage1, O_RDONLY)) == -1) err(1, "open"); if (fstat(fd, &sb) == -1) err(1, "fstat"); blocks = howmany((size_t)sb.st_size, DEV_BSIZE); blksize = blocks * DEV_BSIZE; if (verbose) fprintf(stderr, "boot block is %zu bytes " "(%zu blocks @ %u bytes = %zu bytes)\n", (ssize_t)sb.st_size, blocks, DEV_BSIZE, blksize); if (blksize > SBSIZE - DEV_BSIZE) errx(1, "boot blocks too big (%zu > %d)", blksize, SBSIZE - DEV_BSIZE); blkstore = calloc(1, blksize); if (blkstore == NULL) err(1, "calloc"); if (read(fd, blkstore, sb.st_size) != (ssize_t)sb.st_size) err(1, "read"); close(fd); /* Load second-stage boot loader. */ if ((fd = open(stage2, O_RDONLY)) == -1) err(1, "open"); if (fstat(fd, &sb) == -1) err(1, "stat"); ldrsize = sb.st_size; ldrstore = malloc(ldrsize); if (ldrstore == NULL) err(1, "malloc"); if (read(fd, ldrstore, ldrsize) != (ssize_t)sb.st_size) err(1, "read"); close(fd); } void md_prepareboot(int devfd, char *dev) { } void md_installboot(int devfd, char *dev) { static int prefixed = 0; /* XXX - is this necessary? */ sync(); /* * sr_install_bootblk() calls md_installboot() for every softraid chunk * but the path must be prefixed only once. */ if (!prefixed++) bootldr = fileprefix(root, bootldr); if (bootldr == NULL) exit(1); if (verbose) fprintf(stderr, "%s %s to %s\n", (nowrite ? "would copy" : "copying"), stage2, bootldr); if (!nowrite) if (filecopy(stage2, bootldr) == -1) exit(1); /* Write bootblock into the superblock. */ if (verbose) fprintf(stderr, "%s boot block to disk %s\n", (nowrite ? "would write" : "writing"), dev); if (nowrite) return; if (pwrite(devfd, blkstore, blksize, DEV_BSIZE) != (ssize_t)blksize) err(1, "pwrite"); }