diff options
| -rw-r--r-- | cbtable.c | 80 | ||||
| -rw-r--r-- | flashrom.c | 2 | ||||
| -rw-r--r-- | layout.c | 101 | ||||
| -rw-r--r-- | programmer.h | 4 |
4 files changed, 82 insertions, 105 deletions
@@ -25,6 +25,7 @@ #include <unistd.h> #include <stdio.h> #include <stdlib.h> +#include <ctype.h> #include <string.h> #include "flash.h" #include "programmer.h" @@ -32,6 +33,9 @@ char *lb_part = NULL, *lb_vendor = NULL; int partvendor_from_cbtable = 0; +static char *def_name = "DEFAULT"; +static char *mainboard_vendor = NULL; +static char *mainboard_part = NULL; /* Parse the [<vendor>:]<board> string specified by the user as part of * -p internal:mainboard=[<vendor>:]<board> and set lb_vendor and lb_part @@ -56,6 +60,82 @@ void lb_vendor_dev_from_string(const char *boardstring) free(tempstr); } +int show_id(uint8_t *bios, int size) +{ + unsigned int *walk; + unsigned int mb_part_offset, mb_vendor_offset; + char *mb_part, *mb_vendor; + + mainboard_vendor = def_name; + mainboard_part = def_name; + + walk = (unsigned int *)(bios + size - 0x10); + walk--; + + if ((*walk) == 0 || ((*walk) & 0x3ff) != 0) { + /* We might have an NVIDIA chipset BIOS which stores the ID information somewhere else. */ + walk = (unsigned int *)(bios + size - 0x80); + walk--; + } + + /* + * Check if coreboot last image size is 0 or not a multiple of 1k or + * bigger than the chip or if the pointers to vendor ID or mainboard ID + * are outside the image of if the start of ID strings are nonsensical + * (nonprintable and not \0). + */ + mb_part_offset = *(walk - 1); + mb_vendor_offset = *(walk - 2); + if ((*walk) == 0 || ((*walk) & 0x3ff) != 0 || (*walk) > size || + mb_part_offset > size || mb_vendor_offset > size) { + msg_pinfo("Flash image seems to be a legacy BIOS. Disabling coreboot-related checks.\n"); + return 0; + } + + mb_part = (char *)(bios + size - mb_part_offset); + mb_vendor = (char *)(bios + size - mb_vendor_offset); + if (!isprint((unsigned char)*mb_part) || + !isprint((unsigned char)*mb_vendor)) { + msg_pinfo("Flash image seems to have garbage in the ID location. Disabling checks.\n"); + return 0; + } + + msg_pdbg("coreboot last image size (not ROM size) is %d bytes.\n", *walk); + + mainboard_part = strdup(mb_part); + mainboard_vendor = strdup(mb_vendor); + msg_pdbg("Manufacturer: %s\n", mainboard_vendor); + msg_pdbg("Mainboard ID: %s\n", mainboard_part); + + /* If these are not set, the coreboot table was not found. */ + if (!lb_vendor || !lb_part) { + msg_pinfo("Note: If the following flash access fails, try " + "-p internal:mainboard=<vendor>:<mainboard>.\n"); + return 0; + } + + /* These comparisons are case insensitive to make things a little less user^Werror prone. */ + if (!strcasecmp(mainboard_vendor, lb_vendor) && + !strcasecmp(mainboard_part, lb_part)) { + msg_pdbg("This firmware image matches this mainboard.\n"); + } else { + if (force_boardmismatch) { + msg_pinfo("WARNING: This firmware image does not " + "seem to fit to this machine - forcing it.\n"); + } else { + msg_pinfo("ERROR: Your firmware image (%s:%s) does not appear to\n" + " be correct for the detected mainboard (%s:%s)\n\n" + "Override with -p internal:boardmismatch=force to ignore the board name\n" + "in the firmware image or override the detected mainboard with\n" + "-p internal:mainboard=<vendor>:<mainboard>.\n\n", + mainboard_vendor, mainboard_part, lb_vendor, lb_part); + return 1; + } + } + + return 0; +} + static unsigned long compute_checksum(void *addr, unsigned long length) { uint8_t *ptr; @@ -1815,7 +1815,7 @@ int doit(struct flashctx *flash, int force, const char *filename, int read_it, #if CONFIG_INTERNAL == 1 if (programmer == PROGRAMMER_INTERNAL) - if (show_id(newcontents, size, force)) { + if (show_id(newcontents, size)) { ret = 1; goto out; } @@ -21,15 +21,10 @@ #include <stdio.h> #include <stdlib.h> #include <string.h> -#include <ctype.h> #include <limits.h> #include "flash.h" #include "programmer.h" -#if CONFIG_INTERNAL == 1 -char *mainboard_vendor = NULL; -char *mainboard_part = NULL; -#endif static int romimages = 0; #define MAX_ROMLAYOUT 32 @@ -49,102 +44,6 @@ static char *include_args[MAX_ROMLAYOUT]; static int num_include_args = 0; /* the number of valid entries. */ static romlayout_t rom_entries[MAX_ROMLAYOUT]; -#if CONFIG_INTERNAL == 1 /* FIXME: Move the whole block to cbtable.c? */ -static char *def_name = "DEFAULT"; - -int show_id(uint8_t *bios, int size, int force) -{ - unsigned int *walk; - unsigned int mb_part_offset, mb_vendor_offset; - char *mb_part, *mb_vendor; - - mainboard_vendor = def_name; - mainboard_part = def_name; - - walk = (unsigned int *)(bios + size - 0x10); - walk--; - - if ((*walk) == 0 || ((*walk) & 0x3ff) != 0) { - /* We might have an NVIDIA chipset BIOS which stores the ID - * information at a different location. - */ - walk = (unsigned int *)(bios + size - 0x80); - walk--; - } - - /* - * Check if coreboot last image size is 0 or not a multiple of 1k or - * bigger than the chip or if the pointers to vendor ID or mainboard ID - * are outside the image of if the start of ID strings are nonsensical - * (nonprintable and not \0). - */ - mb_part_offset = *(walk - 1); - mb_vendor_offset = *(walk - 2); - if ((*walk) == 0 || ((*walk) & 0x3ff) != 0 || (*walk) > size || - mb_part_offset > size || mb_vendor_offset > size) { - msg_pinfo("Flash image seems to be a legacy BIOS. " - "Disabling coreboot-related checks.\n"); - return 0; - } - - mb_part = (char *)(bios + size - mb_part_offset); - mb_vendor = (char *)(bios + size - mb_vendor_offset); - if (!isprint((unsigned char)*mb_part) || - !isprint((unsigned char)*mb_vendor)) { - msg_pinfo("Flash image seems to have garbage in the ID location." - " Disabling checks.\n"); - return 0; - } - - msg_pdbg("coreboot last image size " - "(not ROM size) is %d bytes.\n", *walk); - - mainboard_part = strdup(mb_part); - mainboard_vendor = strdup(mb_vendor); - msg_pdbg("Manufacturer: %s\n", mainboard_vendor); - msg_pdbg("Mainboard ID: %s\n", mainboard_part); - - /* - * If lb_vendor is not set, the coreboot table was - * not found. Nor was -p internal:mainboard=VENDOR:PART specified. - */ - if (!lb_vendor || !lb_part) { - msg_pinfo("Note: If the following flash access fails, try " - "-p internal:mainboard=<vendor>:<mainboard>.\n"); - return 0; - } - - /* These comparisons are case insensitive to make things - * a little less user^Werror prone. - */ - if (!strcasecmp(mainboard_vendor, lb_vendor) && - !strcasecmp(mainboard_part, lb_part)) { - msg_pdbg("This firmware image matches this mainboard.\n"); - } else { - if (force_boardmismatch) { - msg_pinfo("WARNING: This firmware image does not " - "seem to fit to this machine - forcing it.\n"); - } else { - msg_pinfo("ERROR: Your firmware image (%s:%s) does not " - "appear to\n" - " be correct for the detected " - "mainboard (%s:%s)\n\n" - "Override with -p internal:boardmismatch=" - "force to ignore the board name in the\n" - "firmware image or override the detected " - "mainboard with\n" - "-p internal:mainboard=<vendor>:<mainboard>." - "\n\n", - mainboard_vendor, mainboard_part, lb_vendor, - lb_part); - return 1; - } - } - - return 0; -} -#endif - #ifndef __LIBPAYLOAD__ int read_romlayout(char *name) { diff --git a/programmer.h b/programmer.h index 723374d..7d06be3 100644 --- a/programmer.h +++ b/programmer.h @@ -274,6 +274,7 @@ void cleanup_cpu_msr(void); /* cbtable.c */ void lb_vendor_dev_from_string(const char *boardstring); +int show_id(uint8_t *bios, int size); int coreboot_init(void); extern char *lb_part, *lb_vendor; extern int partvendor_from_cbtable; @@ -478,9 +479,6 @@ void check_chip_supported(const struct flashctx *flash); int check_max_decode(enum chipbustype buses, uint32_t size); char *extract_programmer_param(const char *param_name); -/* layout.c */ -int show_id(uint8_t *bios, int size, int force); - /* spi.c */ enum spi_controller { SPI_CONTROLLER_NONE, |
