Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 1 | /* |
Peter Stuge | 45ae92ff | 2009-04-14 19:48:32 +0000 | [diff] [blame] | 2 | * cbfs-mkpayload |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net> |
Patrick Georgi | b7b56dd8 | 2009-09-14 13:29:27 +0000 | [diff] [blame] | 5 | * 2009 coresystems GmbH |
| 6 | * written by Patrick Georgi <patrick.georgi@coresystems.de> |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; version 2 of the License. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 16 | */ |
| 17 | |
| 18 | #include <stdio.h> |
| 19 | #include <stdlib.h> |
| 20 | #include <string.h> |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 21 | |
Aaron Durbin | 54ef306 | 2014-03-05 12:12:09 -0600 | [diff] [blame] | 22 | #include "elfparsing.h" |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 23 | #include "common.h" |
Patrick Georgi | b7b56dd8 | 2009-09-14 13:29:27 +0000 | [diff] [blame] | 24 | #include "cbfs.h" |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 25 | #include "fv.h" |
| 26 | #include "coff.h" |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 27 | |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 28 | /* serialize the seg array into the buffer. |
| 29 | * The buffer is assumed to be large enough. |
| 30 | */ |
Ronald G. Minnich | 818f369 | 2014-02-04 08:29:35 -0800 | [diff] [blame] | 31 | void xdr_segs(struct buffer *output, |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 32 | struct cbfs_payload_segment *segs, int nseg) |
| 33 | { |
| 34 | struct buffer outheader; |
| 35 | int i; |
| 36 | |
| 37 | outheader.data = output->data; |
| 38 | outheader.size = 0; |
| 39 | |
| 40 | for(i = 0; i < nseg; i++){ |
| 41 | xdr_be.put32(&outheader, segs[i].type); |
| 42 | xdr_be.put32(&outheader, segs[i].compression); |
| 43 | xdr_be.put32(&outheader, segs[i].offset); |
| 44 | xdr_be.put64(&outheader, segs[i].load_addr); |
| 45 | xdr_be.put32(&outheader, segs[i].len); |
| 46 | xdr_be.put32(&outheader, segs[i].mem_len); |
| 47 | } |
| 48 | } |
Aaron Durbin | ca63027 | 2014-08-05 10:48:20 -0500 | [diff] [blame] | 49 | |
| 50 | void xdr_get_seg(struct cbfs_payload_segment *out, |
| 51 | struct cbfs_payload_segment *in) |
| 52 | { |
| 53 | struct buffer inheader; |
| 54 | |
| 55 | inheader.data = (void *)in; |
| 56 | inheader.size = sizeof(*in); |
| 57 | |
| 58 | out->type = xdr_be.get32(&inheader); |
| 59 | out->compression = xdr_be.get32(&inheader); |
| 60 | out->offset = xdr_be.get32(&inheader); |
| 61 | out->load_addr = xdr_be.get64(&inheader); |
| 62 | out->len = xdr_be.get32(&inheader); |
| 63 | out->mem_len = xdr_be.get32(&inheader); |
| 64 | } |
| 65 | |
Sol Boucher | 0e53931 | 2015-03-05 15:38:03 -0800 | [diff] [blame] | 66 | int parse_elf_to_payload(const struct buffer *input, struct buffer *output, |
Sol Boucher | 6310ccc | 2015-05-07 21:12:28 -0700 | [diff] [blame] | 67 | enum comp_algo algo) |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 68 | { |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 69 | Elf64_Phdr *phdr; |
| 70 | Elf64_Ehdr ehdr; |
| 71 | Elf64_Shdr *shdr; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 72 | char *header; |
| 73 | char *strtab; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 74 | int headers; |
| 75 | int segments = 1; |
| 76 | int isize = 0, osize = 0; |
| 77 | int doffset = 0; |
Patrick Georgi | 96990a2 | 2014-09-29 10:08:35 +0200 | [diff] [blame] | 78 | struct cbfs_payload_segment *segs = NULL; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 79 | int i; |
Patrick Georgi | 96990a2 | 2014-09-29 10:08:35 +0200 | [diff] [blame] | 80 | int ret = 0; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 81 | |
Patrick Georgi | b7b56dd8 | 2009-09-14 13:29:27 +0000 | [diff] [blame] | 82 | comp_func_ptr compress = compression_function(algo); |
| 83 | if (!compress) |
| 84 | return -1; |
| 85 | |
Sol Boucher | 0e53931 | 2015-03-05 15:38:03 -0800 | [diff] [blame] | 86 | if (elf_headers(input, &ehdr, &phdr, &shdr) < 0) |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 87 | return -1; |
| 88 | |
Hung-Te Lin | c13e4bf | 2013-01-29 15:22:11 +0800 | [diff] [blame] | 89 | DEBUG("start: parse_elf_to_payload\n"); |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 90 | headers = ehdr.e_phnum; |
| 91 | header = input->data; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 92 | |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 93 | strtab = &header[shdr[ehdr.e_shstrndx].sh_offset]; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 94 | |
| 95 | /* Count the number of headers - look for the .notes.pinfo |
| 96 | * section */ |
| 97 | |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 98 | for (i = 0; i < ehdr.e_shnum; i++) { |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 99 | char *name; |
| 100 | |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 101 | if (i == ehdr.e_shstrndx) |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 102 | continue; |
| 103 | |
| 104 | if (shdr[i].sh_size == 0) |
| 105 | continue; |
| 106 | |
| 107 | name = (char *)(strtab + shdr[i].sh_name); |
| 108 | |
Ronald G. Minnich | 5a1af7b | 2009-09-17 15:35:08 +0000 | [diff] [blame] | 109 | if (!strcmp(name, ".note.pinfo")) { |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 110 | segments++; |
Ronald G. Minnich | 5a1af7b | 2009-09-17 15:35:08 +0000 | [diff] [blame] | 111 | isize += (unsigned int)shdr[i].sh_size; |
| 112 | } |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 113 | } |
| 114 | |
| 115 | /* Now, regular headers - we only care about PT_LOAD headers, |
| 116 | * because thats what we're actually going to load |
| 117 | */ |
| 118 | |
| 119 | for (i = 0; i < headers; i++) { |
| 120 | if (phdr[i].p_type != PT_LOAD) |
| 121 | continue; |
| 122 | |
| 123 | /* Empty segments are never interesting */ |
| 124 | if (phdr[i].p_memsz == 0) |
| 125 | continue; |
| 126 | |
| 127 | isize += phdr[i].p_filesz; |
| 128 | |
| 129 | segments++; |
| 130 | } |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 131 | /* allocate the segment header array */ |
| 132 | segs = calloc(segments, sizeof(*segs)); |
Patrick Georgi | 96990a2 | 2014-09-29 10:08:35 +0200 | [diff] [blame] | 133 | if (segs == NULL) { |
| 134 | ret = -1; |
| 135 | goto out; |
| 136 | } |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 137 | /* Allocate a block of memory to store the data in */ |
Hung-Te Lin | c13e4bf | 2013-01-29 15:22:11 +0800 | [diff] [blame] | 138 | if (buffer_create(output, (segments * sizeof(*segs)) + isize, |
Patrick Georgi | 96990a2 | 2014-09-29 10:08:35 +0200 | [diff] [blame] | 139 | input->name) != 0) { |
| 140 | ret = -1; |
| 141 | goto out; |
| 142 | } |
Hung-Te Lin | c13e4bf | 2013-01-29 15:22:11 +0800 | [diff] [blame] | 143 | memset(output->data, 0, output->size); |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 144 | |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 145 | doffset = (segments * sizeof(*segs)); |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 146 | |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 147 | /* set up for output marshaling. This is a bit |
| 148 | * tricky as we are marshaling the headers at the front, |
| 149 | * and the data starting after the headers. We need to convert |
| 150 | * the headers to the right format but the data |
| 151 | * passes through unchanged. Unlike most XDR code, |
| 152 | * we are doing these two concurrently. The doffset is |
| 153 | * used to compute the address for the raw data, and the |
| 154 | * outheader is used to marshal the headers. To make it simpler |
| 155 | * for The Reader, we set up the headers in a separate array, |
| 156 | * then marshal them all at once to the output. |
| 157 | */ |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 158 | segments = 0; |
| 159 | |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 160 | for (i = 0; i < ehdr.e_shnum; i++) { |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 161 | char *name; |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 162 | if (i == ehdr.e_shstrndx) |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 163 | continue; |
| 164 | |
| 165 | if (shdr[i].sh_size == 0) |
| 166 | continue; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 167 | name = (char *)(strtab + shdr[i].sh_name); |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 168 | if (!strcmp(name, ".note.pinfo")) { |
| 169 | segs[segments].type = PAYLOAD_SEGMENT_PARAMS; |
| 170 | segs[segments].load_addr = 0; |
| 171 | segs[segments].len = (unsigned int)shdr[i].sh_size; |
| 172 | segs[segments].offset = doffset; |
| 173 | |
Hung-Te Lin | c13e4bf | 2013-01-29 15:22:11 +0800 | [diff] [blame] | 174 | memcpy((unsigned long *)(output->data + doffset), |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 175 | &header[shdr[i].sh_offset], shdr[i].sh_size); |
| 176 | |
| 177 | doffset += segs[segments].len; |
| 178 | osize += segs[segments].len; |
| 179 | |
| 180 | segments++; |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | for (i = 0; i < headers; i++) { |
| 185 | if (phdr[i].p_type != PT_LOAD) |
| 186 | continue; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 187 | if (phdr[i].p_memsz == 0) |
| 188 | continue; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 189 | if (phdr[i].p_filesz == 0) { |
| 190 | segs[segments].type = PAYLOAD_SEGMENT_BSS; |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 191 | segs[segments].load_addr = phdr[i].p_paddr; |
| 192 | segs[segments].mem_len = phdr[i].p_memsz; |
| 193 | segs[segments].offset = doffset; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 194 | |
| 195 | segments++; |
| 196 | continue; |
| 197 | } |
| 198 | |
Stefan Reinauer | 51f6a20 | 2012-01-11 12:40:14 -0800 | [diff] [blame] | 199 | if (phdr[i].p_flags & PF_X) |
| 200 | segs[segments].type = PAYLOAD_SEGMENT_CODE; |
| 201 | else |
| 202 | segs[segments].type = PAYLOAD_SEGMENT_DATA; |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 203 | segs[segments].load_addr = phdr[i].p_paddr; |
| 204 | segs[segments].mem_len = phdr[i].p_memsz; |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 205 | segs[segments].offset = doffset; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 206 | |
Gabe Black | 845aa14 | 2014-02-21 01:01:06 -0800 | [diff] [blame] | 207 | /* If the compression failed or made the section is larger, |
| 208 | use the original stuff */ |
| 209 | |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 210 | int len; |
Gabe Black | dbd006b | 2014-02-20 23:38:49 -0800 | [diff] [blame] | 211 | if (compress((char *)&header[phdr[i].p_offset], |
Gabe Black | 845aa14 | 2014-02-21 01:01:06 -0800 | [diff] [blame] | 212 | phdr[i].p_filesz, output->data + doffset, &len) || |
| 213 | (unsigned int)len > phdr[i].p_filesz) { |
| 214 | WARN("Compression failed or would make the data bigger " |
| 215 | "- disabled.\n"); |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 216 | segs[segments].compression = 0; |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 217 | segs[segments].len = phdr[i].p_filesz; |
Hung-Te Lin | c13e4bf | 2013-01-29 15:22:11 +0800 | [diff] [blame] | 218 | memcpy(output->data + doffset, |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 219 | &header[phdr[i].p_offset], phdr[i].p_filesz); |
Gabe Black | 845aa14 | 2014-02-21 01:01:06 -0800 | [diff] [blame] | 220 | } else { |
| 221 | segs[segments].compression = algo; |
| 222 | segs[segments].len = len; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 223 | } |
| 224 | |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 225 | doffset += segs[segments].len; |
| 226 | osize += segs[segments].len; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 227 | |
| 228 | segments++; |
| 229 | } |
| 230 | |
| 231 | segs[segments].type = PAYLOAD_SEGMENT_ENTRY; |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 232 | segs[segments++].load_addr = ehdr.e_entry; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 233 | |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 234 | output->size = (segments * sizeof(*segs)) + osize; |
| 235 | xdr_segs(output, segs, segments); |
Patrick Georgi | 96990a2 | 2014-09-29 10:08:35 +0200 | [diff] [blame] | 236 | |
| 237 | out: |
| 238 | if (segs) free(segs); |
| 239 | if (shdr) free(shdr); |
| 240 | if (phdr) free(phdr); |
| 241 | return ret; |
Ronald G. Minnich | 5d01ec0 | 2009-03-31 11:57:36 +0000 | [diff] [blame] | 242 | } |
Hung-Te Lin | 05dccae | 2013-01-28 15:04:30 +0800 | [diff] [blame] | 243 | |
Hung-Te Lin | c13e4bf | 2013-01-29 15:22:11 +0800 | [diff] [blame] | 244 | int parse_flat_binary_to_payload(const struct buffer *input, |
| 245 | struct buffer *output, |
Hung-Te Lin | 05dccae | 2013-01-28 15:04:30 +0800 | [diff] [blame] | 246 | uint32_t loadaddress, |
| 247 | uint32_t entrypoint, |
Sol Boucher | 6310ccc | 2015-05-07 21:12:28 -0700 | [diff] [blame] | 248 | enum comp_algo algo) |
Hung-Te Lin | 05dccae | 2013-01-28 15:04:30 +0800 | [diff] [blame] | 249 | { |
| 250 | comp_func_ptr compress; |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 251 | struct cbfs_payload_segment segs[2]; |
Hung-Te Lin | 05dccae | 2013-01-28 15:04:30 +0800 | [diff] [blame] | 252 | int doffset, len = 0; |
| 253 | |
| 254 | compress = compression_function(algo); |
| 255 | if (!compress) |
| 256 | return -1; |
| 257 | |
| 258 | DEBUG("start: parse_flat_binary_to_payload\n"); |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 259 | if (buffer_create(output, (sizeof(segs) + input->size), |
Hung-Te Lin | c13e4bf | 2013-01-29 15:22:11 +0800 | [diff] [blame] | 260 | input->name) != 0) |
Hung-Te Lin | 05dccae | 2013-01-28 15:04:30 +0800 | [diff] [blame] | 261 | return -1; |
Hung-Te Lin | c13e4bf | 2013-01-29 15:22:11 +0800 | [diff] [blame] | 262 | memset(output->data, 0, output->size); |
Hung-Te Lin | 05dccae | 2013-01-28 15:04:30 +0800 | [diff] [blame] | 263 | |
Hung-Te Lin | 05dccae | 2013-01-28 15:04:30 +0800 | [diff] [blame] | 264 | doffset = (2 * sizeof(*segs)); |
| 265 | |
| 266 | /* Prepare code segment */ |
| 267 | segs[0].type = PAYLOAD_SEGMENT_CODE; |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 268 | segs[0].load_addr = loadaddress; |
| 269 | segs[0].mem_len = input->size; |
| 270 | segs[0].offset = doffset; |
Hung-Te Lin | 05dccae | 2013-01-28 15:04:30 +0800 | [diff] [blame] | 271 | |
Gabe Black | 845aa14 | 2014-02-21 01:01:06 -0800 | [diff] [blame] | 272 | if (!compress(input->data, input->size, output->data + doffset, &len) && |
| 273 | (unsigned int)len < input->size) { |
| 274 | segs[0].compression = algo; |
| 275 | segs[0].len = len; |
| 276 | } else { |
| 277 | WARN("Compression failed or would make the data bigger " |
| 278 | "- disabled.\n"); |
Hung-Te Lin | 05dccae | 2013-01-28 15:04:30 +0800 | [diff] [blame] | 279 | segs[0].compression = 0; |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 280 | segs[0].len = input->size; |
Hung-Te Lin | c13e4bf | 2013-01-29 15:22:11 +0800 | [diff] [blame] | 281 | memcpy(output->data + doffset, input->data, input->size); |
Hung-Te Lin | 05dccae | 2013-01-28 15:04:30 +0800 | [diff] [blame] | 282 | } |
| 283 | |
| 284 | /* prepare entry point segment */ |
| 285 | segs[1].type = PAYLOAD_SEGMENT_ENTRY; |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 286 | segs[1].load_addr = entrypoint; |
| 287 | output->size = doffset + segs[0].len; |
| 288 | xdr_segs(output, segs, 2); |
Hung-Te Lin | c13e4bf | 2013-01-29 15:22:11 +0800 | [diff] [blame] | 289 | return 0; |
Hung-Te Lin | 05dccae | 2013-01-28 15:04:30 +0800 | [diff] [blame] | 290 | } |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 291 | |
Sol Boucher | 6310ccc | 2015-05-07 21:12:28 -0700 | [diff] [blame] | 292 | int parse_fv_to_payload(const struct buffer *input, struct buffer *output, |
| 293 | enum comp_algo algo) |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 294 | { |
| 295 | comp_func_ptr compress; |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 296 | struct cbfs_payload_segment segs[2]; |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 297 | int doffset, len = 0; |
| 298 | firmware_volume_header_t *fv; |
| 299 | ffs_file_header_t *fh; |
| 300 | common_section_header_t *cs; |
| 301 | dos_header_t *dh; |
| 302 | coff_header_t *ch; |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 303 | int dh_offset; |
| 304 | |
Stefan Reinauer | e876418 | 2013-02-05 13:46:49 -0800 | [diff] [blame] | 305 | uint32_t loadaddress = 0; |
| 306 | uint32_t entrypoint = 0; |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 307 | |
| 308 | compress = compression_function(algo); |
| 309 | if (!compress) |
| 310 | return -1; |
| 311 | |
| 312 | DEBUG("start: parse_fv_to_payload\n"); |
| 313 | |
| 314 | fv = (firmware_volume_header_t *)input->data; |
| 315 | if (fv->signature != FV_SIGNATURE) { |
| 316 | INFO("Not a UEFI firmware volume.\n"); |
| 317 | return -1; |
| 318 | } |
| 319 | |
| 320 | fh = (ffs_file_header_t *)(input->data + fv->header_length); |
Patrick Georgi | 4610247 | 2013-02-09 13:26:19 +0100 | [diff] [blame] | 321 | while (fh->file_type == FILETYPE_PAD) { |
| 322 | unsigned long offset = (fh->size[2] << 16) | (fh->size[1] << 8) | fh->size[0]; |
Hung-Te Lin | 7b654a9 | 2013-02-18 18:35:00 +0800 | [diff] [blame] | 323 | ERROR("skipping %lu bytes of FV padding\n", offset); |
Sol Boucher | 0e53931 | 2015-03-05 15:38:03 -0800 | [diff] [blame] | 324 | fh = (ffs_file_header_t *)(((uintptr_t)fh) + offset); |
Patrick Georgi | 4610247 | 2013-02-09 13:26:19 +0100 | [diff] [blame] | 325 | } |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 326 | if (fh->file_type != FILETYPE_SEC) { |
| 327 | ERROR("Not a usable UEFI firmware volume.\n"); |
Stefan Reinauer | e876418 | 2013-02-05 13:46:49 -0800 | [diff] [blame] | 328 | INFO("First file in first FV not a SEC core.\n"); |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 329 | return -1; |
| 330 | } |
| 331 | |
| 332 | cs = (common_section_header_t *)&fh[1]; |
Patrick Georgi | 4610247 | 2013-02-09 13:26:19 +0100 | [diff] [blame] | 333 | while (cs->section_type == SECTION_RAW) { |
| 334 | unsigned long offset = (cs->size[2] << 16) | (cs->size[1] << 8) | cs->size[0]; |
Hung-Te Lin | 7b654a9 | 2013-02-18 18:35:00 +0800 | [diff] [blame] | 335 | ERROR("skipping %lu bytes of section padding\n", offset); |
Sol Boucher | 0e53931 | 2015-03-05 15:38:03 -0800 | [diff] [blame] | 336 | cs = (common_section_header_t *)(((uintptr_t)cs) + offset); |
Patrick Georgi | 4610247 | 2013-02-09 13:26:19 +0100 | [diff] [blame] | 337 | } |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 338 | if (cs->section_type != SECTION_PE32) { |
| 339 | ERROR("Not a usable UEFI firmware volume.\n"); |
Stefan Reinauer | e876418 | 2013-02-05 13:46:49 -0800 | [diff] [blame] | 340 | INFO("Section type not PE32.\n"); |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 341 | return -1; |
| 342 | } |
| 343 | |
| 344 | dh = (dos_header_t *)&cs[1]; |
Stefan Reinauer | e876418 | 2013-02-05 13:46:49 -0800 | [diff] [blame] | 345 | if (dh->signature != DOS_MAGIC) { |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 346 | ERROR("Not a usable UEFI firmware volume.\n"); |
Stefan Reinauer | e876418 | 2013-02-05 13:46:49 -0800 | [diff] [blame] | 347 | INFO("DOS header signature wrong.\n"); |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 348 | return -1; |
| 349 | } |
| 350 | |
| 351 | dh_offset = (unsigned long)dh - (unsigned long)input->data; |
| 352 | DEBUG("dos header offset = %x\n", dh_offset); |
| 353 | |
Sol Boucher | 0e53931 | 2015-03-05 15:38:03 -0800 | [diff] [blame] | 354 | ch = (coff_header_t *)(((uintptr_t)dh)+dh->e_lfanew); |
Stefan Reinauer | e876418 | 2013-02-05 13:46:49 -0800 | [diff] [blame] | 355 | |
| 356 | if (ch->machine == MACHINE_TYPE_X86) { |
| 357 | pe_opt_header_32_t *ph; |
| 358 | ph = (pe_opt_header_32_t *)&ch[1]; |
| 359 | if (ph->signature != PE_HDR_32_MAGIC) { |
| 360 | WARN("PE header signature incorrect.\n"); |
| 361 | return -1; |
| 362 | } |
| 363 | DEBUG("image base %x\n", ph->image_addr); |
| 364 | DEBUG("entry point %x\n", ph->entry_point); |
| 365 | |
| 366 | loadaddress = ph->image_addr - dh_offset; |
| 367 | entrypoint = ph->image_addr + ph->entry_point; |
| 368 | } else if (ch->machine == MACHINE_TYPE_X64) { |
| 369 | pe_opt_header_64_t *ph; |
| 370 | ph = (pe_opt_header_64_t *)&ch[1]; |
| 371 | if (ph->signature != PE_HDR_64_MAGIC) { |
| 372 | WARN("PE header signature incorrect.\n"); |
| 373 | return -1; |
| 374 | } |
| 375 | DEBUG("image base %lx\n", (unsigned long)ph->image_addr); |
| 376 | DEBUG("entry point %x\n", ph->entry_point); |
| 377 | |
| 378 | loadaddress = ph->image_addr - dh_offset; |
| 379 | entrypoint = ph->image_addr + ph->entry_point; |
| 380 | } else { |
| 381 | ERROR("Machine type not x86 or x64.\n"); |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 382 | return -1; |
| 383 | } |
| 384 | |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 385 | if (buffer_create(output, (sizeof(segs) + input->size), |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 386 | input->name) != 0) |
| 387 | return -1; |
| 388 | |
| 389 | memset(output->data, 0, output->size); |
| 390 | |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 391 | doffset = (sizeof(segs)); |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 392 | |
| 393 | /* Prepare code segment */ |
| 394 | segs[0].type = PAYLOAD_SEGMENT_CODE; |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 395 | segs[0].load_addr = loadaddress; |
| 396 | segs[0].mem_len = input->size; |
| 397 | segs[0].offset = doffset; |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 398 | |
Gabe Black | 845aa14 | 2014-02-21 01:01:06 -0800 | [diff] [blame] | 399 | if (!compress(input->data, input->size, output->data + doffset, &len) && |
| 400 | (unsigned int)len < input->size) { |
| 401 | segs[0].compression = algo; |
| 402 | segs[0].len = len; |
| 403 | } else { |
| 404 | WARN("Compression failed or would make the data bigger " |
| 405 | "- disabled.\n"); |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 406 | segs[0].compression = 0; |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 407 | segs[0].len = input->size; |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 408 | memcpy(output->data + doffset, input->data, input->size); |
| 409 | } |
| 410 | |
| 411 | /* prepare entry point segment */ |
| 412 | segs[1].type = PAYLOAD_SEGMENT_ENTRY; |
Ronald G. Minnich | a8a133d | 2013-12-30 13:16:18 -0800 | [diff] [blame] | 413 | segs[1].load_addr = entrypoint; |
| 414 | output->size = doffset + segs[0].len; |
| 415 | xdr_segs(output, segs, 2); |
Stefan Reinauer | 543a682 | 2013-02-04 15:39:13 -0800 | [diff] [blame] | 416 | return 0; |
| 417 | |
| 418 | } |