1 /* $OpenBSD: efi_softraid.c,v 1.2 2022/08/29 18:54:43 kn Exp $ */ 2 /* 3 * Copyright (c) 2012 Joel Sing <jsing@openbsd.org> 4 * Copyright (c) 2022 Klemens Nanni <kn@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/types.h> 20 #include <sys/disklabel.h> 21 #include <sys/ioctl.h> 22 23 #include <dev/biovar.h> 24 #include <dev/softraidvar.h> 25 26 #include <err.h> 27 #include <fcntl.h> 28 #include <stdio.h> 29 #include <string.h> 30 #include <util.h> 31 #include <unistd.h> 32 33 #include "installboot.h" 34 35 void 36 sr_install_bootblk(int devfd, int vol, int disk) 37 { 38 struct bioc_disk bd; 39 char *realdev; 40 int diskfd; 41 char part; 42 43 /* Get device name for this disk/chunk. */ 44 memset(&bd, 0, sizeof(bd)); 45 bd.bd_volid = vol; 46 bd.bd_diskid = disk; 47 if (ioctl(devfd, BIOCDISK, &bd) == -1) 48 err(1, "BIOCDISK"); 49 50 /* Check disk status. */ 51 if (bd.bd_status != BIOC_SDONLINE && bd.bd_status != BIOC_SDREBUILD) { 52 fprintf(stderr, "softraid chunk %u not online - skipping...\n", 53 disk); 54 return; 55 } 56 57 if (strlen(bd.bd_vendor) < 1) 58 errx(1, "invalid disk name"); 59 part = bd.bd_vendor[strlen(bd.bd_vendor) - 1]; 60 if (part < 'a' || part >= 'a' + MAXPARTITIONS) 61 errx(1, "invalid partition %c\n", part); 62 bd.bd_vendor[strlen(bd.bd_vendor) - 1] = '\0'; 63 64 /* Open device. */ 65 if ((diskfd = opendev(bd.bd_vendor, (nowrite ? O_RDONLY : O_RDWR), 66 OPENDEV_PART, &realdev)) == -1) 67 err(1, "open: %s", realdev); 68 69 if (verbose) 70 fprintf(stderr, "%s%c: %s boot blocks on %s\n", bd.bd_vendor, 71 part, (nowrite ? "would install" : "installing"), realdev); 72 73 /* Write boot blocks to device. */ 74 md_installboot(diskfd, realdev); 75 76 close(diskfd); 77 } 78 79 void 80 sr_install_bootldr(int devfd, char *dev) 81 { 82 /* 83 * EFI platforms have a single stage bootstrap. 84 * sr_install_bootblk() installs it on each softraid chunk. 85 * The softraid volume does not require any bootstrap code. 86 */ 87 } 88