New patch to review for coreboot: 95e511f cbfstool: support parsing UEFI firmware volumes
Stefan Reinauer (stefan.reinauer@coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/2281
-gerrit
commit 95e511f5504dab3fabac2f18036712f4d5e4e3fe Author: Stefan Reinauer reinauer@chromium.org Date: Mon Feb 4 15:39:13 2013 -0800
cbfstool: support parsing UEFI firmware volumes
This removes the hack implemented in http://review.coreboot.org/#/c/2280 (and should make using 64bit Tiano easier, but that's not yet supported)
Change-Id: Ie30129c4102dfbd41584177f39057b31f5a937fd Signed-off-by: Stefan Reinauer reinauer@google.com --- src/arch/x86/Makefile.inc | 14 +----- util/cbfstool/cbfs-mkpayload.c | 107 ++++++++++++++++++++++++++++++++++++++++- util/cbfstool/cbfstool.c | 14 +++++- util/cbfstool/coff.h | 86 +++++++++++++++++++++++++++++++++ util/cbfstool/common.h | 2 + util/cbfstool/fv.h | 49 +++++++++++++++++++ 6 files changed, 257 insertions(+), 15 deletions(-)
diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc index fc1e0e0..67789ce 100644 --- a/src/arch/x86/Makefile.inc +++ b/src/arch/x86/Makefile.inc @@ -101,19 +101,7 @@ ifeq ($(CONFIG_PAYLOAD_FILO),y) endif ifeq ($(CONFIG_PAYLOAD_TIANOCORE),y) @printf " PAYLOAD Tiano Core (compression: $(CBFS_PAYLOAD_COMPRESS_FLAG))\n" - $(eval $(shell \ - TMPFILE=`mktemp`; \ - head -c1200 $(CONFIG_TIANOCORE_FILE) | \ - tail -c1100 > $$TMPFILE && \ - LC_ALL=C objdump -x $$TMPFILE | \ - grep .text | while read idx nam size vma lma off align; do \ - printf "TIANO_ENTRY:=%d " 0x$$vma; \ - expr `printf "%d - %d - 100" 0x$$vma 0x$$off`; \ - done && \ - rm $$TMPFILE)) - $(eval TIANO_BASE:=$(word 2,$(TIANO_ENTRY))) - $(eval TIANO_ENTRY:=$(word 1,$(TIANO_ENTRY))) - $(CBFSTOOL) $@.tmp add-flat-binary -f $(CONFIG_TIANOCORE_FILE) -n $(CONFIG_CBFS_PREFIX)/payload -l $(TIANO_BASE) -e $(TIANO_ENTRY) -c $(CBFS_PAYLOAD_COMPRESS_FLAG) + $(CBFSTOOL) $@.tmp add-payload -f $(CONFIG_TIANOCORE_FILE) -n $(CONFIG_CBFS_PREFIX)/payload -c $(CBFS_PAYLOAD_COMPRESS_FLAG) endif ifeq ($(CONFIG_INCLUDE_CONFIG_FILE),y) @printf " CONFIG $(DOTCONFIG)\n" diff --git a/util/cbfstool/cbfs-mkpayload.c b/util/cbfstool/cbfs-mkpayload.c index 302d506..99142f4 100644 --- a/util/cbfstool/cbfs-mkpayload.c +++ b/util/cbfstool/cbfs-mkpayload.c @@ -26,6 +26,8 @@ #include "common.h" #include "cbfs.h" #include "elf.h" +#include "fv.h" +#include "coff.h"
int parse_elf_to_payload(const struct buffer *input, struct buffer *output, comp_algo algo) @@ -43,7 +45,7 @@ int parse_elf_to_payload(const struct buffer *input, int i;
if(!iself((unsigned char *)input->data)){ - ERROR("The payload file is not in ELF format!\n"); + INFO("The payload file is not in ELF format!\n"); return -1; }
@@ -247,3 +249,106 @@ int parse_flat_binary_to_payload(const struct buffer *input,
return 0; } + +int parse_fv_to_payload(const struct buffer *input, + struct buffer *output, comp_algo algo) +{ + comp_func_ptr compress; + struct cbfs_payload_segment *segs; + int doffset, len = 0; + firmware_volume_header_t *fv; + ffs_file_header_t *fh; + common_section_header_t *cs; + dos_header_t *dh; + coff_header_t *ch; + pe_opt_header_t *ph; + int dh_offset; + + uint32_t loadaddress; + uint32_t entrypoint; + + compress = compression_function(algo); + if (!compress) + return -1; + + DEBUG("start: parse_fv_to_payload\n"); + + fv = (firmware_volume_header_t *)input->data; + if (fv->signature != FV_SIGNATURE) { + INFO("Not a UEFI firmware volume.\n"); + return -1; + } + + fh = (ffs_file_header_t *)(input->data + fv->header_length); + if (fh->file_type != FILETYPE_SEC) { + ERROR("Not a usable UEFI firmware volume.\n"); + return -1; + } + + cs = (common_section_header_t *)&fh[1]; + if (cs->section_type != SECTION_PE32) { + ERROR("Not a usable UEFI firmware volume.\n"); + return -1; + } + + dh = (dos_header_t *)&cs[1]; + if (dh->signature != 0x5a4d) { + ERROR("Not a usable UEFI firmware volume.\n"); + return -1; + } + + dh_offset = (unsigned long)dh - (unsigned long)input->data; + DEBUG("dos header offset = %x\n", dh_offset); + + ch = (coff_header_t *)(((void *)dh)+dh->e_lfanew); + if (ch->machine != 0x14c) { + ERROR("Not a usable UEFI firmware volume.\n"); + return -1; + } + + ph = (pe_opt_header_t *)&ch[1]; + if (ph->signature != 267) { + ERROR("Not a usable UEFI firmware volume.\n"); + return -1; + } + + DEBUG("image base %x\n", ph->image_addr); + DEBUG("entry point %x\n", ph->entry_point); + + loadaddress = ph->image_addr - dh_offset; + entrypoint = ph->image_addr + ph->entry_point; + + if (buffer_create(output, (2 * sizeof(*segs) + input->size), + input->name) != 0) + return -1; + + memset(output->data, 0, output->size); + + segs = (struct cbfs_payload_segment *)output->data; + doffset = (2 * sizeof(*segs)); + + /* Prepare code segment */ + segs[0].type = PAYLOAD_SEGMENT_CODE; + segs[0].load_addr = htonll(loadaddress); + segs[0].mem_len = htonl(input->size); + segs[0].offset = htonl(doffset); + + compress(input->data, input->size, output->data + doffset, &len); + segs[0].compression = htonl(algo); + segs[0].len = htonl(len); + + if ((unsigned int)len >= input->size) { + WARN("Compressing data would make it bigger - disabled.\n"); + segs[0].compression = 0; + segs[0].len = htonl(input->size); + memcpy(output->data + doffset, input->data, input->size); + } + + /* prepare entry point segment */ + segs[1].type = PAYLOAD_SEGMENT_ENTRY; + segs[1].load_addr = htonll(entrypoint); + output->size = doffset + ntohl(segs[0].len); + + return 0; + +} diff --git a/util/cbfstool/cbfstool.c b/util/cbfstool/cbfstool.c index 3881628..97fd88d 100644 --- a/util/cbfstool/cbfstool.c +++ b/util/cbfstool/cbfstool.c @@ -138,8 +138,20 @@ static int cbfstool_convert_mkstage(struct buffer *buffer, uint32_t *offset) {
static int cbfstool_convert_mkpayload(struct buffer *buffer, uint32_t *offset) { struct buffer output; - if (parse_elf_to_payload(buffer, &output, param.algo) != 0) + int ret; + /* per default, try and see if payload is an ELF binary */ + ret = parse_elf_to_payload(buffer, &output, param.algo); + + /* If it's not an ELF, see if it's a UEFI FV */ + if (ret != 0) + ret = parse_fv_to_payload(buffer, &output, param.algo); + + /* Not a supported payload type */ + if (ret != 0) { + ERROR("Not a supported payload type (ELF / FV).\n"); return -1; + } + buffer_delete(buffer); // direct assign, no dupe. memcpy(buffer, &output, sizeof(*buffer)); diff --git a/util/cbfstool/coff.h b/util/cbfstool/coff.h new file mode 100644 index 0000000..ebe4538 --- /dev/null +++ b/util/cbfstool/coff.h @@ -0,0 +1,86 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 Google, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +typedef struct { + uint16_t signature; + uint16_t lastsize; + uint16_t nblocks; + uint16_t nreloc; + uint16_t hdrsize; + uint16_t minalloc; + uint16_t maxalloc; + uint16_t ss; + uint16_t sp; + uint16_t checksum; + uint16_t ip; + uint16_t cs; + uint16_t relocpos; + uint16_t noverlay; + uint16_t reserved1[4]; + uint16_t oem_id; + uint16_t oem_info; + uint16_t reserved2[10]; + uint32_t e_lfanew; +} dos_header_t; + +typedef struct { + uint8_t signature[4]; + uint16_t machine; + uint16_t num_sections; + uint32_t timestamp; + uint32_t symboltable; + uint32_t num_symbols; + uint16_t opt_header_size; + uint16_t characteristics; +} coff_header_t; + +typedef struct { + uint16_t signature; + uint8_t major_linker_version; + uint8_t minor_linker_version; + uint32_t code_size; + uint32_t data_size; + uint32_t bss_size; + uint32_t entry_point; + uint32_t code_offset; + uint32_t data_offset; + uint32_t image_addr; + uint32_t section_alignment; + uint32_t file_alignment; + uint16_t major_os_version; + uint16_t minor_os_version; + uint16_t major_image_version; + uint16_t minor_image_version; + uint16_t major_subsystem_version; + uint16_t minor_subsystem_version; + uint32_t reserved; + uint32_t image_size; + uint32_t header_size; + uint32_t checksum; + uint16_t subsystem; + uint16_t characteristics; + uint32_t stack_reserve_size; + uint32_t stack_commit_size; + uint32_t heap_reserve_size; + uint32_t heap_commit_size; + uint32_t loader_flags; + uint32_t number_of_va_and_sizes; + /* data directory not needed */ +} pe_opt_header_t; + diff --git a/util/cbfstool/common.h b/util/cbfstool/common.h index 16c04c9..e197143 100644 --- a/util/cbfstool/common.h +++ b/util/cbfstool/common.h @@ -100,6 +100,8 @@ uint64_t intfiletype(const char *name); /* cbfs-mkpayload.c */ int parse_elf_to_payload(const struct buffer *input, struct buffer *output, comp_algo algo); +int parse_fv_to_payload(const struct buffer *input, + struct buffer *output, comp_algo algo); int parse_flat_binary_to_payload(const struct buffer *input, struct buffer *output, uint32_t loadaddress, diff --git a/util/cbfstool/fv.h b/util/cbfstool/fv.h new file mode 100644 index 0000000..1ea50e0 --- /dev/null +++ b/util/cbfstool/fv.h @@ -0,0 +1,49 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 Google, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#define FV_SIGNATURE 0x4856465f +typedef struct { + uint8_t padding[16]; + uint8_t guid[16]; + uint64_t fv_length; + uint32_t signature; + uint32_t attributes; + uint16_t header_length; + uint16_t checksum; + uint16_t ext_header_offs; + uint8_t reserved; + uint8_t revision; + /* not used here: block map entries */ +} firmware_volume_header_t; + +#define FILETYPE_SEC 0x03 +typedef struct { + uint8_t name[16]; + uint16_t integrity; + uint8_t file_type; + uint8_t attributes; + uint8_t size[3]; + uint8_t state; +} ffs_file_header_t; + +#define SECTION_PE32 0x10 +typedef struct { + uint8_t size[3]; + uint8_t section_type; +} common_section_header_t;
-
Stefan Reinauer