diff options
Diffstat (limited to 'util/nvramtool')
| -rw-r--r-- | util/nvramtool/Makefile | 4 | ||||
| -rw-r--r-- | util/nvramtool/cbfs.c | 146 | ||||
| -rw-r--r-- | util/nvramtool/cbfs.h | 181 | ||||
| -rw-r--r-- | util/nvramtool/common.c | 1 | ||||
| -rw-r--r-- | util/nvramtool/lbtable.c | 39 | ||||
| -rw-r--r-- | util/nvramtool/lbtable.h | 1 | ||||
| -rw-r--r-- | util/nvramtool/nvramtool.c | 15 | ||||
| -rw-r--r-- | util/nvramtool/opts.c | 6 | ||||
| -rw-r--r-- | util/nvramtool/opts.h | 1 |
9 files changed, 378 insertions, 16 deletions
diff --git a/util/nvramtool/Makefile b/util/nvramtool/Makefile index f035b0f6b9..94fa707372 100644 --- a/util/nvramtool/Makefile +++ b/util/nvramtool/Makefile @@ -24,12 +24,12 @@ CC = gcc STRIP = strip INSTALL = /usr/bin/install PREFIX = /usr/local -CFLAGS = -O2 -g -Wall -W +CFLAGS = -O2 -g -Wall -W -m32 #CFLAGS = -Os -Wall OBJS = cmos_lowlevel.o cmos_ops.o common.o compute_ip_checksum.o \ hexdump.o input_file.o layout.o layout_file.o lbtable.o \ - nvramtool.o opts.o reg_expr.o + nvramtool.o opts.o reg_expr.o cbfs.o OS_ARCH = $(shell uname) ifeq ($(OS_ARCH), Darwin) diff --git a/util/nvramtool/cbfs.c b/util/nvramtool/cbfs.c new file mode 100644 index 0000000000..8dc8b91901 --- /dev/null +++ b/util/nvramtool/cbfs.c @@ -0,0 +1,146 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net> + * Copyright (C) 2011 secunet Security Networks AG + * (Written by Patrick Georgi <patrick.georgi@secunet.com>) + * + * 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 + */ + +#include <arpa/inet.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <stdlib.h> +#include <fcntl.h> +#include <string.h> +#include <stdio.h> +#include "cbfs.h" + +#define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1) +#define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask)) + +static void *cbfs_mapped; +static u32 cbfs_offset; +static void* virt_to_phys(u32 virt) +{ + return (void*)(virt+cbfs_offset); +} + +#ifdef DEBUG +#define debug(x...) printf(x) +#else +#define debug(x...) while(0) {} +#endif + +static int cbfs_check_magic(struct cbfs_file *file) +{ + return !strcmp(file->magic, CBFS_FILE_MAGIC) ? 1 : 0; +} + +static struct cbfs_header *cbfs_master_header(void) +{ + struct cbfs_header *header; + + void *ptr = virt_to_phys(*((u32*)virt_to_phys(CBFS_HEADPTR_ADDR))); + debug("Check CBFS header at %p\n", ptr); + header = (struct cbfs_header *) ptr; + + debug("magic is %08x\n", ntohl(header->magic)); + if (ntohl(header->magic) != CBFS_HEADER_MAGIC) { + printf("ERROR: No valid CBFS header found!\n"); + return NULL; + } + + debug("Found CBFS header at %p\n", ptr); + return header; +} + +struct cbfs_file *cbfs_find(const char *name) +{ + struct cbfs_header *header = cbfs_master_header(); + unsigned long offset; + + if (header == NULL) + return NULL; + offset = (u32)virt_to_phys(0 - ntohl(header->romsize) + ntohl(header->offset)); + + int align= ntohl(header->align); + + while(1) { + struct cbfs_file *file = (struct cbfs_file *) offset; + if (!cbfs_check_magic(file)) return NULL; + debug("Check %s\n", CBFS_NAME(file)); + if (!strcmp(CBFS_NAME(file), name)) + return file; + + int flen = ntohl(file->len); + int foffset = ntohl(file->offset); + debug("CBFS: follow chain: %p + %x + %x + align -> ", (void *)offset, foffset, flen); + + unsigned long oldoffset = offset; + offset = ALIGN(offset + foffset + flen, align); + debug("%p\n", (void *)offset); + if (offset <= oldoffset) return NULL; + + if (offset < (u32)virt_to_phys(0xFFFFFFFF - ntohl(header->romsize))) + return NULL; + } +} + +void *cbfs_find_file(const char *name, unsigned int type, unsigned int *len) +{ + struct cbfs_file *file = cbfs_find(name); + + if (file == NULL) { + printf("CBFS: Could not find file %s\n", + name); + return NULL; + } + + if (ntohl(file->type) != type) { + printf("CBFS: File %s is of type %x instead of" + "type %x\n", name, file->type, type); + + return NULL; + } + if (len != NULL) *len = file->len; + + return (void *) CBFS_SUBHEADER(file); +} + +void open_cbfs(const char *filename) +{ + struct stat cbfs_stat; + int cbfs_fd; + + cbfs_fd = open(filename, O_RDWR); + if (cbfs_fd == -1) { + printf("Couldn't open '%s'\n", filename); + exit(-1); + } + if (fstat(cbfs_fd, &cbfs_stat) == -1) { + printf("Couldn't stat '%s'\n", filename); + exit(-1); + } + cbfs_mapped = mmap(NULL, cbfs_stat.st_size, PROT_READ | PROT_WRITE, + MAP_SHARED, cbfs_fd, 0); + if (cbfs_mapped == MAP_FAILED) { + printf("Couldn't map '%s'\n", filename); + exit(-1); + } + cbfs_offset = (uint32_t)cbfs_mapped-(0xffffffff-cbfs_stat.st_size+1); +} + diff --git a/util/nvramtool/cbfs.h b/util/nvramtool/cbfs.h new file mode 100644 index 0000000000..5f9db8d87b --- /dev/null +++ b/util/nvramtool/cbfs.h @@ -0,0 +1,181 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net> + * + * This file is dual-licensed. You can choose between: + * - The GNU GPL, version 2, as published by the Free Software Foundation + * - The revised BSD license (without advertising clause) + * + * --------------------------------------------------------------------------- + * 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 + * --------------------------------------------------------------------------- + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * --------------------------------------------------------------------------- + */ + +#ifndef _CBFS_H_ +#define _CBFS_H_ + +#include "coreboot_tables.h" + +typedef uint64_t u64; +typedef uint32_t u32; +typedef uint16_t u16; +typedef uint8_t u8; + +/** These are standard values for the known compression + alogrithms that coreboot knows about for stages and + payloads. Of course, other CBFS users can use whatever + values they want, as long as they understand them. */ + +#define CBFS_COMPRESS_NONE 0 +#define CBFS_COMPRESS_LZMA 1 + +/** These are standard component types for well known + components (i.e - those that coreboot needs to consume. + Users are welcome to use any other value for their + components */ + +#define CBFS_TYPE_STAGE 0x10 +#define CBFS_TYPE_PAYLOAD 0x20 +#define CBFS_TYPE_OPTIONROM 0x30 +#define CBFS_TYPE_BOOTSPLASH 0x40 +#define CBFS_TYPE_RAW 0x50 +#define CBFS_TYPE_VSA 0x51 +#define CBFS_TYPE_MBI 0x52 +#define CBFS_TYPE_MICROCODE 0x53 +#define CBFS_COMPONENT_CMOS_DEFAULT 0xaa +#define CBFS_COMPONENT_CMOS_LAYOUT 0x01aa + + +/** this is the master cbfs header - it need to be + located somewhere in the bootblock. Where it + actually lives is up to coreboot. A pointer to + this header will live at 0xFFFFFFFc, so we can + easily find it. */ + +#define CBFS_HEADER_MAGIC 0x4F524243 +#define CBFS_HEADPTR_ADDR 0xFFFFFFFc +#define VERSION1 0x31313131 + +struct cbfs_header { + u32 magic; + u32 version; + u32 romsize; + u32 bootblocksize; + u32 align; + u32 offset; + u32 pad[2]; +} __attribute__((packed)); + +/** This is a component header - every entry in the CBFS + will have this header. + + This is how the component is arranged in the ROM: + + -------------- <- 0 + component header + -------------- <- sizeof(struct component) + component name + -------------- <- offset + data + ... + -------------- <- offset + len +*/ + +#define CBFS_FILE_MAGIC "LARCHIVE" + +struct cbfs_file { + char magic[8]; + u32 len; + u32 type; + u32 checksum; + u32 offset; +} __attribute__((packed)); + +/*** Component sub-headers ***/ + +/* Following are component sub-headers for the "standard" + component types */ + +/** This is the sub-header for stage components. Stages are + loaded by coreboot during the normal boot process */ + +struct cbfs_stage { + u32 compression; /** Compression type */ + u64 entry; /** entry point */ + u64 load; /** Where to load in memory */ + u32 len; /** length of data to load */ + u32 memlen; /** total length of object in memory */ +} __attribute__((packed)); + +/** this is the sub-header for payload components. Payloads + are loaded by coreboot at the end of the boot process */ + +struct cbfs_payload_segment { + u32 type; + u32 compression; + u32 offset; + u64 load_addr; + u32 len; + u32 mem_len; +} __attribute__((packed)); + +struct cbfs_payload { + struct cbfs_payload_segment segments; +}; + +#define PAYLOAD_SEGMENT_CODE 0x45444F43 +#define PAYLOAD_SEGMENT_DATA 0x41544144 +#define PAYLOAD_SEGMENT_BSS 0x20535342 +#define PAYLOAD_SEGMENT_PARAMS 0x41524150 +#define PAYLOAD_SEGMENT_ENTRY 0x52544E45 + +struct cbfs_optionrom { + u32 compression; + u32 len; +} __attribute__((packed)); + +#define CBFS_NAME(_c) (((char *) (_c)) + sizeof(struct cbfs_file)) +#define CBFS_SUBHEADER(_p) ( (void *) ((((u8 *) (_p)) + ntohl((_p)->offset))) ) + +void * cbfs_get_file(const char *name); +struct cbfs_file *cbfs_find(const char *name); +void *cbfs_find_file(const char *name, unsigned int type, unsigned int *len); + +void open_cbfs(const char *filename); +#endif + diff --git a/util/nvramtool/common.c b/util/nvramtool/common.c index 45338ec4de..03ee16ba16 100644 --- a/util/nvramtool/common.c +++ b/util/nvramtool/common.c @@ -82,6 +82,7 @@ void usage(FILE * outfile) "LAYOUT_FILE.\n" " -t: Use CMOS layout specified by CMOS option " "table.\n" + " -C CBFS_FILE: Use CBFS file for layout and CMOS defaults.\n" " [-n] -r NAME: Show parameter NAME. If -n is given, " "show value only.\n" " -e NAME: Show all possible values for parameter " diff --git a/util/nvramtool/lbtable.c b/util/nvramtool/lbtable.c index 142937a6d8..bc3cb45ce3 100644 --- a/util/nvramtool/lbtable.c +++ b/util/nvramtool/lbtable.c @@ -29,6 +29,7 @@ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. \*****************************************************************************/ +#include <arpa/inet.h> #include <string.h> #include <sys/mman.h> #include "common.h" @@ -38,6 +39,7 @@ #include "layout.h" #include "cmos_lowlevel.h" #include "hexdump.h" +#include "cbfs.h" typedef void (*lbtable_print_fn_t) (const struct lb_record * rec); @@ -315,6 +317,21 @@ void get_lbtable(void) exit(1); } +static void process_layout(void) +{ + if ((cmos_table) == NULL) { + fprintf(stderr, + "%s: CMOS option table not found in coreboot table. " + "Apparently, the coreboot installed on this system was " + "built without specifying CONFIG_HAVE_OPTION_TABLE.\n", + prog_name); + exit(1); + } + + process_cmos_table(); + get_cmos_checksum_info(); +} + /**************************************************************************** * get_layout_from_cmos_table * @@ -327,18 +344,18 @@ void get_layout_from_cmos_table(void) get_lbtable(); cmos_table = (const struct cmos_option_table *) find_lbrec(LB_TAG_CMOS_OPTION_TABLE); + process_layout(); +} - if ((cmos_table) == NULL) { - fprintf(stderr, - "%s: CMOS option table not found in coreboot table. " - "Apparently, the coreboot installed on this system was " - "built without specifying CONFIG_HAVE_OPTION_TABLE.\n", - prog_name); - exit(1); - } - - process_cmos_table(); - get_cmos_checksum_info(); +void get_layout_from_cbfs_file(void) +{ + static struct lb_header header; + u32 len; + cmos_table = cbfs_find_file("cmos_layout.bin", CBFS_COMPONENT_CMOS_LAYOUT, &len); + lbtable = &header; + header.header_bytes = (u32)cmos_table-(u32)lbtable; + header.table_bytes = ntohl(len); + process_layout(); } /**************************************************************************** diff --git a/util/nvramtool/lbtable.h b/util/nvramtool/lbtable.h index 5587bd8637..c9276b6d04 100644 --- a/util/nvramtool/lbtable.h +++ b/util/nvramtool/lbtable.h @@ -35,6 +35,7 @@ void get_lbtable(void); void get_layout_from_cmos_table(void); +void get_layout_from_cbfs_file(void); void dump_lbtable(void); void list_lbtable_choices(void); void list_lbtable_item(const char item[]); diff --git a/util/nvramtool/nvramtool.c b/util/nvramtool/nvramtool.c index e82d0ac9d8..6ad5d2f269 100644 --- a/util/nvramtool/nvramtool.c +++ b/util/nvramtool/nvramtool.c @@ -38,6 +38,7 @@ #include "cmos_lowlevel.h" #include "reg_expr.h" #include "hexdump.h" +#include "cbfs.h" typedef void (*op_fn_t) (void); @@ -92,7 +93,7 @@ static const hexdump_format_t cmos_dump_format = ****************************************************************************/ int main(int argc, char *argv[]) { - cmos_layout_get_fn_t fn; + cmos_layout_get_fn_t fn = get_layout_from_cmos_table; parse_nvramtool_args(argc, argv); @@ -100,8 +101,18 @@ int main(int argc, char *argv[]) set_layout_filename(nvramtool_op_modifiers [NVRAMTOOL_MOD_USE_CMOS_LAYOUT_FILE].param); fn = get_layout_from_file; - } else + } else if (nvramtool_op_modifiers[NVRAMTOOL_MOD_USE_CMOS_OPT_TABLE].found) { fn = get_layout_from_cmos_table; + } else if (nvramtool_op_modifiers[NVRAMTOOL_MOD_USE_CBFS_FILE].found) { + open_cbfs(nvramtool_op_modifiers[NVRAMTOOL_MOD_USE_CBFS_FILE].param); + void *cmosdefault = cbfs_find_file("cmos.default", CBFS_COMPONENT_CMOS_DEFAULT, NULL); + if (cmosdefault == NULL) { + printf("Need a cmos.default in the CBFS image for now.\n"); + exit(1); + } + select_hal(HAL_MEMORY, cmosdefault); + fn = get_layout_from_cbfs_file; + } register_cmos_layout_get_fn(fn); op_fns[nvramtool_op.op] (); diff --git a/util/nvramtool/opts.c b/util/nvramtool/opts.c index 44a19c9953..9aaeedfbfd 100644 --- a/util/nvramtool/opts.c +++ b/util/nvramtool/opts.c @@ -41,7 +41,7 @@ static void register_op_modifier(nvramtool_op_modifier_t mod, char mod_param[]); static void resolve_op_modifiers(void); static void sanity_check_args(void); -static const char getopt_string[] = "-ab:B:c::de:hil::np:r:tvw:xX:y:Y"; +static const char getopt_string[] = "-ab:B:c::C:de:hil::np:r:tvw:xX:y:Y"; /**************************************************************************** * parse_nvramtool_args @@ -82,6 +82,10 @@ void parse_nvramtool_args(int argc, char *argv[]) register_op(&op_found, NVRAMTOOL_OP_CMOS_CHECKSUM, handle_optional_arg(argc, argv)); break; + case 'C': + register_op_modifier(NVRAMTOOL_MOD_USE_CBFS_FILE, + optarg); + break; case 'd': register_op(&op_found, NVRAMTOOL_OP_LBTABLE_DUMP, NULL); break; diff --git a/util/nvramtool/opts.h b/util/nvramtool/opts.h index 659b3d8cde..4cac976deb 100644 --- a/util/nvramtool/opts.h +++ b/util/nvramtool/opts.h @@ -58,6 +58,7 @@ typedef struct { typedef enum { NVRAMTOOL_MOD_SHOW_VALUE_ONLY = 0, NVRAMTOOL_MOD_USE_CMOS_LAYOUT_FILE, + NVRAMTOOL_MOD_USE_CBFS_FILE, NVRAMTOOL_MOD_USE_CMOS_OPT_TABLE, NVRAMTOOL_NUM_OP_MODIFIERS /* must always be last */ } nvramtool_op_modifier_t; |