openwrt/upstream - upstream openwrt

	Commit message (Expand)	Author	Age	Files	Lines
*	wwan: json format in some modem definitions	Alexandru Ardelean	2017-09-16	1	-1/+1
*	wwan: rename data files	Simon Hailes	2016-10-26	1	-0/+5

/* * This file is part of the flashrom project. * * Copyright (C) 2005-2008 coresystems GmbH * (Written by Stefan Reinauer <stepan@coresystems.de> for coresystems GmbH) * * 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 <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 typedef struct { unsigned int start; unsigned int end; unsigned int included; char name[256]; } romlayout_t; /* include_args lists arguments specified at the command line with -i. They * must be processed at some point so that desired regions are marked as * "included" in the rom_entries list. */ 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); exit(1); } } return 0; } #endif #ifndef __LIBPAYLOAD__ int read_romlayout(char *name) { FILE *romlayout; char tempstr[256]; int i; romlayout = fopen(name, "r"); if (!romlayout) { msg_gerr("ERROR: Could not open ROM layout (%s).\n", name); return -1; } while (!feof(romlayout)) { char *tstr1, *tstr2; if (romimages >= MAX_ROMLAYOUT) { msg_gerr("Maximum number of ROM images (%i) in layout " "file reached.\n", MAX_ROMLAYOUT); return 1; } if (2 != fscanf(romlayout, "%s %s\n", tempstr, rom_entries[romimages].name)) continue; #if 0 // fscanf does not like arbitrary comments like that :( later if (tempstr[0] == '#') { continue; } #endif tstr1 = strtok(tempstr, ":"); tstr2 = strtok(NULL, ":"); if (!tstr1 || !tstr2) { msg_gerr("Error parsing layout file.\n"); fclose(romlayout); return 1; } rom_entries[romimages].start = strtol(tstr1, (char **)NULL, 16); rom_entries[romimages].end = strtol(tstr2, (char **)NULL, 16); rom_entries[romimages].included = 0; romimages++; } for (i = 0; i < romimages; i++) { msg_gdbg("romlayout %08x - %08x named %s\n", rom_entries[i].start, rom_entries[i].end, rom_entries[i].name); } fclose(romlayout); return 0; } #endif /* returns the index of the entry (or a negative value if it is not found) */ int find_include_arg(const char *const name) { unsigned int i; for (i = 0; i < num_include_args; i++) { if (!strcmp(include_args[i], name)) return i; } return -1; } /* register an include argument (-i) for later processing */ int register_include_arg(char *name) { if (num_include_args >= MAX_ROMLAYOUT) { msg_gerr("Too many regions included (%i).\n", num_include_args); return 1; } if (name == NULL) { msg_gerr("<NULL> is a bad region name.\n"); return 1; } if (find_include_arg(name) != -1) { msg_gerr("Duplicate region name: \"%s\".\n", name); return 1; } include_args[num_include_args] = name; num_include_args++; return 0; } /* returns the index of the entry (or a negative value if it is not found) */ static int find_romentry(char *name) { int i; if (!romimages) return -1; msg_gspew("Looking for region \"%s\"... ", name); for (i = 0; i < romimages; i++) { if (!strcmp(rom_entries[i].name, name)) { rom_entries[i].included = 1; msg_gspew("found.\n"); return i; } } msg_gspew("not found.\n"); return -1; } /* process -i arguments * returns 0 to indicate success, >0 to indicate failure */ int process_include_args(void) { int i; unsigned int found = 0; if (num_include_args == 0) return 0; /* User has specified an area, but no layout file is loaded. */ if (!romimages) { msg_gerr("Region requested (with -i \"%s\"), " "but no layout data is available.\n", include_args[0]); return 1; } for (i = 0; i < num_include_args; i++) { if (find_romentry(include_args[i]) < 0) { msg_gerr("Invalid region specified: \"%s\".\n", include_args[i]); return 1; } found++; } msg_ginfo("Using region%s: \"%s\"", num_include_args > 1 ? "s" : "", include_args[0]); for (i = 1; i < num_include_args; i++) msg_ginfo(", \"%s\"", include_args[i]); msg_ginfo(".\n"); return 0; } romlayout_t *get_next_included_romentry(unsigned int start) { int i; unsigned int best_start = UINT_MAX; romlayout_t *best_entry = NULL; romlayout_t *cur; /* First come, first serve for overlapping regions. */ for (i = 0; i < romimages; i++) { cur = &rom_entries[i]; if (!cur->included) continue; /* Already past the current entry? */ if (start > cur->end) continue; /* Inside the current entry? */ if (start >= cur->start) return cur; /* Entry begins after start. */ if (best_start > cur->start) { best_start = cur->start; best_entry = cur; } } return best_entry; } int handle_romentries(struct flashctx *flash, uint8_t *oldcontents, uint8_t *newcontents) { unsigned int start = 0; romlayout_t *entry; unsigned int size = flash->total_size * 1024; /* If no regions were specified for inclusion, assume * that the user wants to write the complete new image. */ if (num_include_args == 0) return 0; /* Non-included romentries are ignored. * The union of all included romentries is used from the new image. */ while (start < size) { entry = get_next_included_romentry(start); /* No more romentries for remaining region? */ if (!entry) { memcpy(newcontents + start, oldcontents + start, size - start); break; } /* For non-included region, copy from old content. */ if (entry->start > start) memcpy(newcontents + start, oldcontents + start, entry->start - start); /* Skip to location after current romentry. */ start = entry->end + 1; /* Catch overflow. */ if (!start) break; } return 0; }