1 /* 2 * Copyright (c) 2009 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@backplane.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 /* 35 * boot2 encapsulated ABI. The boot2 standalone code provides these functions 36 * to the boot2 add-on modules (ufsread.c and hammer2.c). 37 */ 38 39 #ifndef _BOOT_COMMON_BOOT2_H_ 40 #define _BOOT_COMMON_BOOT2_H_ 41 42 43 #include <sys/param.h> 44 #include <sys/dtype.h> 45 #include <sys/dirent.h> 46 #include <stdarg.h> 47 #include <stddef.h> 48 #include <stdint.h> 49 #include <machine/bootinfo.h> 50 #include <machine/elf.h> 51 52 /* 53 * We only need a 32 bit ino_t for UFS-only boot code. We have to squeeze 54 * space usage, else we'd just use 64 bits across the board. 55 */ 56 #if defined(HAMMERFS) || defined(HAMMER2FS) 57 typedef uint64_t boot2_ino_t; 58 #else 59 typedef uint32_t boot2_ino_t; 60 #endif 61 62 struct boot2_fsapi { 63 int (*fsinit)(void); 64 boot2_ino_t (*fslookup)(const char *); 65 ssize_t (*fsread)(boot2_ino_t, void *, size_t); 66 }; 67 68 /* 69 * secbuf needs to be big enough for the label reads 70 * (32 and 64 bit disklabels). 71 */ 72 struct boot2_dmadat { 73 char secbuf[DEV_BSIZE*4]; 74 /* extended by *fsread() modules */ 75 }; 76 77 extern uint32_t fs_off; 78 extern int no_io_error; 79 extern int ls; 80 extern struct boot2_dmadat *boot2_dmadat; 81 82 extern int dskread(void *, unsigned, unsigned); 83 extern void printf(const char *,...); 84 extern void putchar(int); 85 extern int strcmp(const char *s1, const char *s2); 86 extern void memcpy(void *d, const void *s, int len); 87 88 #ifdef UFS 89 extern const struct boot2_fsapi boot2_ufs_api; 90 #endif 91 #ifdef HAMMERFS 92 extern const struct boot2_fsapi boot2_hammer_api; 93 #endif 94 #ifdef HAMMER2FS 95 extern const struct boot2_fsapi boot2_hammer2_api; 96 #endif 97 98 #endif 99