#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <libgen.h>
#include "common.h"
#include "cbfs.h"
#include "elf.h"
#define dprintf
+uint32_t getfilesize(const char *filename)
+{
+ uint32_t size;
+ FILE *file = fopen(filename, "rb");
+ fseek(file, 0, SEEK_END);
+ size = ftell(file);
+ fclose(file);
+ return size;
+}
+
void *loadfile(const char *filename, uint32_t * romsize_p, void *content,
int place)
{
return romarea;
}
-void writerom(const char *filename, void *start, uint32_t size)
+int writerom(const char *filename, void *start, uint32_t size)
{
FILE *file = fopen(filename, "wb");
- fwrite(start, size, 1, file);
+ if (!file) {
+ fprintf(stderr, "Could not open '%s' for writing: ", filename);
+ perror("");
+ return 1;
+ }
+
+ if (fwrite(start, size, 1, file) != 1) {
+ fprintf(stderr, "Could not write to '%s': ", filename);
+ perror("");
+ return 1;
+ }
+
fclose(file);
+ return 0;
}
int cbfs_file_header(uint32_t physaddr)
{CBFS_COMPONENT_STAGE, "stage"},
{CBFS_COMPONENT_PAYLOAD, "payload"},
{CBFS_COMPONENT_OPTIONROM, "optionrom"},
+ {CBFS_COMPONENT_BOOTSPLASH, "bootsplash"},
+ {CBFS_COMPONENT_RAW, "raw"},
+ {CBFS_COMPONENT_VSA, "vsa"},
+ {CBFS_COMPONENT_MBI, "mbi"},
+ {CBFS_COMPONENT_MICROCODE, "microcode"},
+ {CBFS_COMPONENT_CMOS_DEFAULT, "cmos default"},
{CBFS_COMPONENT_DELETED, "deleted"},
{CBFS_COMPONENT_NULL, "null"}
};
+void print_supported_filetypes(void)
+{
+ int i, number = ARRAY_SIZE(filetypes);
+
+ for (i=0; i<number; i++) {
+ printf(" %s%c", filetypes[i].name, (i==(number-1))?'\n':',');
+ if ((i%8) == 7)
+ printf("\n");
+ }
+}
+
const char *strfiletype(uint32_t number)
{
int i;
{
printf
("%s: %d kB, bootblocksize %d, romsize %d, offset 0x%x\nAlignment: %d bytes\n\n",
- filename, romsize / 1024, ntohl(master_header->bootblocksize),
+ basename((char *)filename), romsize / 1024, ntohl(master_header->bootblocksize),
romsize, ntohl(master_header->offset), align);
printf("%-30s %-10s %-12s Size\n", "Name", "Offset", "Type");
uint32_t current = phys_start;
struct cbfs_file *thisfile =
(struct cbfs_file *)phys_to_virt(current);
uint32_t length = ntohl(thisfile->len);
- printf("%-30s 0x%-8x %-12s %d\n",
- (const char *)(phys_to_virt(current) +
- sizeof(struct cbfs_file)),
+ char *fname = (char *)(phys_to_virt(current) + sizeof(struct cbfs_file));
+ if (strlen(fname) == 0)
+ fname = "(empty)";
+
+ printf("%-30s 0x%-8x %-12s %d\n", fname,
current - phys_start, strfiletype(ntohl(thisfile->type)),
length);
current =
}
}
+int extract_file_from_cbfs(const char *filename, const char *payloadname, const char *outpath)
+{
+ // Identify the coreboot image.
+ printf(
+ "%s: %d kB, bootblocksize %d, romsize %d, offset 0x%x\nAlignment: %d bytes\n\n",
+ basename((char *)filename), romsize / 1024, ntohl(master_header->bootblocksize),
+ romsize, ntohl(master_header->offset), align);
+
+ FILE *outfile = NULL;
+ uint32_t current = phys_start;
+ while (current < phys_end) {
+ if (!cbfs_file_header(current)) {
+ current += align;
+ continue;
+ }
+
+ // Locate the file start struct
+ struct cbfs_file *thisfile =
+ (struct cbfs_file *)phys_to_virt(current);
+ // And its length
+ uint32_t length = ntohl(thisfile->len);
+ // Locate the file name
+ char *fname = (char *)(phys_to_virt(current) + sizeof(struct cbfs_file));
+ // It's not the file we are looking for..
+ if (strcmp(fname, payloadname) != 0)
+ {
+ current =
+ ALIGN(current + ntohl(thisfile->len) +
+ ntohl(thisfile->offset), align);
+ continue;
+ }
+
+ // Else, it's our file.
+ printf("Found file %.30s at 0x%x, type %.12s, size %d\n", fname,
+ current - phys_start, strfiletype(ntohl(thisfile->type)),
+ length);
+
+ // If we are not dumping to stdout, open the out file.
+ outfile = fopen(outpath, "wb");
+ if (!outfile)
+ {
+ printf("Could not open the file %s for writing. Aborting.\n", outpath);
+ return 1;
+ }
+
+ if (ntohl(thisfile->type) != CBFS_COMPONENT_RAW)
+ {
+ printf("Warning: only 'raw' files are safe to extract.\n");
+ }
+
+ fwrite(((char *)thisfile)
+ + ntohl(thisfile->offset), length, 1, outfile);
+
+ fclose(outfile);
+ printf("Successfully dumped the file.\n");
+
+ // We'll only dump one file.
+ return 0;
+ }
+
+}
+
+
int add_file_to_cbfs(void *content, uint32_t contentsize, uint32_t location)
{
uint32_t current = phys_start;
ntohl(thisfile->offset), align);
}
printf("Could not add the file to CBFS, it's probably too big.\n");
+ printf("File size: %d bytes (%d KB).\n", contentsize, contentsize/1024);
return 1;
}
headersize);
exit(1);
}
+ memset(newdata, 0xff, *datasize + headersize);
struct cbfs_file *nextfile = (struct cbfs_file *)newdata;
strncpy(nextfile->magic, "LARCHIVE", 8);
nextfile->len = htonl(*datasize);
writerom(romfile, romarea, romsize);
return 0;
}
+
+static int in_segment(int addr, int size, int gran)
+{
+ return ((addr & ~(gran - 1)) == ((addr + size) & ~(gran - 1)));
+}
+
+uint32_t cbfs_find_location(const char *romfile, uint32_t filesize,
+ const char *filename, uint32_t alignment)
+{
+ void *rom = loadrom(romfile);
+ int filename_size = strlen(filename);
+
+ int headersize =
+ sizeof(struct cbfs_file) + ALIGN(filename_size + 1,
+ 16) + sizeof(struct cbfs_stage);
+ int totalsize = headersize + filesize;
+
+ uint32_t current = phys_start;
+ while (current < phys_end) {
+ if (!cbfs_file_header(current)) {
+ current += align;
+ continue;
+ }
+ struct cbfs_file *thisfile =
+ (struct cbfs_file *)phys_to_virt(current);
+
+ uint32_t top =
+ current + ntohl(thisfile->len) + ntohl(thisfile->offset);
+ if (((ntohl(thisfile->type) == 0x0)
+ || (ntohl(thisfile->type) == 0xffffffff))
+ && (ntohl(thisfile->len) + ntohl(thisfile->offset) >=
+ totalsize)) {
+ if (in_segment
+ (current + headersize, filesize, alignment))
+ return current + headersize;
+ if ((ALIGN(current, alignment) + filesize < top)
+ && (ALIGN(current, alignment) - headersize >
+ current)
+ && in_segment(ALIGN(current, alignment), filesize,
+ alignment))
+ return ALIGN(current, alignment);
+ if ((ALIGN(current, alignment) + alignment + filesize <
+ top)
+ && (ALIGN(current, alignment) + alignment -
+ headersize > current)
+ && in_segment(ALIGN(current, alignment) + alignment,
+ filesize, alignment))
+ return ALIGN(current, alignment) + alignment;
+ }
+ current =
+ ALIGN(current + ntohl(thisfile->len) +
+ ntohl(thisfile->offset), align);
+ }
+ return 0;
+}
projects / coreboot.git / blobdiff