1253923Smarcel/*- 2263409Smarcel * Copyright (c) 2013,2014 Juniper Networks, Inc. 3253923Smarcel * All rights reserved. 4253923Smarcel * 5253923Smarcel * Redistribution and use in source and binary forms, with or without 6253923Smarcel * modification, are permitted provided that the following conditions 7253923Smarcel * are met: 8253923Smarcel * 1. Redistributions of source code must retain the above copyright 9253923Smarcel * notice, this list of conditions and the following disclaimer. 10253923Smarcel * 2. Redistributions in binary form must reproduce the above copyright 11253923Smarcel * notice, this list of conditions and the following disclaimer in the 12253923Smarcel * documentation and/or other materials provided with the distribution. 13253923Smarcel * 14253923Smarcel * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15253923Smarcel * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16253923Smarcel * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17253923Smarcel * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18253923Smarcel * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19253923Smarcel * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20253923Smarcel * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21253923Smarcel * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22253923Smarcel * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23253923Smarcel * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24253923Smarcel * SUCH DAMAGE. 25253923Smarcel */ 26253923Smarcel 27253923Smarcel#include <sys/cdefs.h> 28253923Smarcel__FBSDID("$FreeBSD$"); 29253923Smarcel 30253923Smarcel#include <sys/types.h> 31263409Smarcel#include <sys/linker_set.h> 32263382Smarcel#include <sys/queue.h> 33263537Smarcel#include <sys/stat.h> 34284523Smarcel#include <assert.h> 35253923Smarcel#include <err.h> 36253923Smarcel#include <errno.h> 37284523Smarcel#include <limits.h> 38253923Smarcel#include <stdint.h> 39263537Smarcel#include <stdlib.h> 40263466Smarcel#include <string.h> 41253923Smarcel#include <unistd.h> 42253923Smarcel 43268161Smarcel#include "image.h" 44263382Smarcel#include "mkimg.h" 45253923Smarcel#include "scheme.h" 46253923Smarcel 47263487Smarcelstatic struct { 48263487Smarcel const char *name; 49263487Smarcel enum alias alias; 50263487Smarcel} scheme_alias[] = { 51263672Smarcel { "ebr", ALIAS_EBR }, 52263487Smarcel { "efi", ALIAS_EFI }, 53292341Semaste { "fat16b", ALIAS_FAT16B }, 54263672Smarcel { "fat32", ALIAS_FAT32 }, 55263487Smarcel { "freebsd", ALIAS_FREEBSD }, 56263487Smarcel { "freebsd-boot", ALIAS_FREEBSD_BOOT }, 57263487Smarcel { "freebsd-nandfs", ALIAS_FREEBSD_NANDFS }, 58263487Smarcel { "freebsd-swap", ALIAS_FREEBSD_SWAP }, 59263487Smarcel { "freebsd-ufs", ALIAS_FREEBSD_UFS }, 60263487Smarcel { "freebsd-vinum", ALIAS_FREEBSD_VINUM }, 61263487Smarcel { "freebsd-zfs", ALIAS_FREEBSD_ZFS }, 62263487Smarcel { "mbr", ALIAS_MBR }, 63287122Smarcel { "ntfs", ALIAS_NTFS }, 64263487Smarcel { NULL, ALIAS_NONE } /* Keep last! */ 65263487Smarcel}; 66263487Smarcel 67263409Smarcelstatic struct mkimg_scheme *scheme; 68263537Smarcelstatic void *bootcode; 69253923Smarcel 70263487Smarcelstatic enum alias 71263487Smarcelscheme_parse_alias(const char *name) 72263487Smarcel{ 73263487Smarcel u_int idx; 74263487Smarcel 75263487Smarcel idx = 0; 76263487Smarcel while (scheme_alias[idx].name != NULL) { 77263487Smarcel if (strcasecmp(scheme_alias[idx].name, name) == 0) 78263487Smarcel return (scheme_alias[idx].alias); 79263487Smarcel idx++; 80263487Smarcel } 81263487Smarcel return (ALIAS_NONE); 82263487Smarcel} 83263487Smarcel 84253923Smarcelint 85253923Smarcelscheme_select(const char *spec) 86253923Smarcel{ 87263409Smarcel struct mkimg_scheme *s, **iter; 88253923Smarcel 89263409Smarcel SET_FOREACH(iter, schemes) { 90263409Smarcel s = *iter; 91263409Smarcel if (strcasecmp(spec, s->name) == 0) { 92263409Smarcel scheme = s; 93253923Smarcel return (0); 94253923Smarcel } 95253923Smarcel } 96253923Smarcel return (EINVAL); 97253923Smarcel} 98253923Smarcel 99263409Smarcelstruct mkimg_scheme * 100253923Smarcelscheme_selected(void) 101253923Smarcel{ 102253923Smarcel 103253923Smarcel return (scheme); 104253923Smarcel} 105253923Smarcel 106253923Smarcelint 107263537Smarcelscheme_bootcode(int fd) 108263537Smarcel{ 109263537Smarcel struct stat sb; 110263537Smarcel 111284523Smarcel if (scheme == NULL || scheme->bootcode == 0) 112263537Smarcel return (ENXIO); 113263537Smarcel 114268161Smarcel if (fstat(fd, &sb) == -1) 115268161Smarcel return (errno); 116263537Smarcel if (sb.st_size > scheme->bootcode) 117263537Smarcel return (EFBIG); 118263537Smarcel 119263537Smarcel bootcode = malloc(scheme->bootcode); 120263537Smarcel if (bootcode == NULL) 121263537Smarcel return (ENOMEM); 122263537Smarcel memset(bootcode, 0, scheme->bootcode); 123263537Smarcel if (read(fd, bootcode, sb.st_size) != sb.st_size) { 124263537Smarcel free(bootcode); 125263537Smarcel bootcode = NULL; 126263537Smarcel return (errno); 127263537Smarcel } 128263537Smarcel return (0); 129263537Smarcel} 130263537Smarcel 131263537Smarcelint 132263409Smarcelscheme_check_part(struct part *p) 133253923Smarcel{ 134263487Smarcel struct mkimg_alias *iter; 135263487Smarcel enum alias alias; 136253923Smarcel 137284523Smarcel assert(scheme != NULL); 138284523Smarcel 139263414Smarcel /* Check the partition type alias */ 140263487Smarcel alias = scheme_parse_alias(p->alias); 141263487Smarcel if (alias == ALIAS_NONE) 142263487Smarcel return (EINVAL); 143263487Smarcel 144263414Smarcel iter = scheme->aliases; 145263487Smarcel while (iter->alias != ALIAS_NONE) { 146263487Smarcel if (alias == iter->alias) 147263414Smarcel break; 148263414Smarcel iter++; 149263414Smarcel } 150263487Smarcel if (iter->alias == ALIAS_NONE) 151263414Smarcel return (EINVAL); 152263461Smarcel p->type = iter->type; 153263466Smarcel 154263466Smarcel /* Validate the optional label. */ 155263466Smarcel if (p->label != NULL) { 156263466Smarcel if (strlen(p->label) > scheme->labellen) 157263487Smarcel return (EINVAL); 158263466Smarcel } 159263466Smarcel 160253923Smarcel return (0); 161253923Smarcel} 162253923Smarcel 163253923Smarcelu_int 164253923Smarcelscheme_max_parts(void) 165253923Smarcel{ 166253923Smarcel 167284523Smarcel return ((scheme == NULL) ? 0 : scheme->nparts); 168253923Smarcel} 169253923Smarcel 170263829Smarcelu_int 171263829Smarcelscheme_max_secsz(void) 172263829Smarcel{ 173263829Smarcel 174284523Smarcel return ((scheme == NULL) ? INT_MAX+1U : scheme->maxsecsz); 175263829Smarcel} 176263829Smarcel 177263653Smarcellba_t 178263844Smarcelscheme_metadata(u_int where, lba_t start) 179263442Smarcel{ 180263442Smarcel 181284523Smarcel return ((scheme == NULL) ? start : scheme->metadata(where, start)); 182263442Smarcel} 183263442Smarcel 184263442Smarcelint 185268161Smarcelscheme_write(lba_t end) 186253923Smarcel{ 187253923Smarcel 188284523Smarcel return ((scheme == NULL) ? 0 : scheme->write(end, bootcode)); 189253923Smarcel} 190