| /* |
| * |
| * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de> |
| * |
| * 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. |
| */ |
| |
| #include "coreinfo.h" |
| #include "endian.h" |
| |
| #if CONFIG(MODULE_CBFS) |
| |
| #define FILES_VISIBLE 19 |
| |
| #define HEADER_MAGIC 0x4F524243 |
| #define HEADER_ADDR 0xfffffffc |
| #define LARCHIVE_MAGIC 0x455649484352414cLL /* "LARCHIVE" */ |
| |
| #define COMPONENT_DELETED 0x00 |
| #define COMPONENT_BOOTBLOCK 0x01 |
| #define COMPONENT_CBFSHEADER 0x02 |
| #define COMPONENT_STAGE 0x10 |
| #define COMPONENT_SELF 0x20 |
| #define COMPONENT_FIT 0x21 |
| #define COMPONENT_OPTIONROM 0x30 |
| #define COMPONENT_RAW 0x50 |
| #define COMPONENT_MICROCODE 0x53 |
| #define COMPONENT_CMOS_LAYOUT 0x1aa |
| #define COMPONENT_NULL 0xffffffff |
| |
| struct cbheader { |
| u32 magic; |
| u32 version; |
| u32 romsize; |
| u32 bootblocksize; |
| u32 align; |
| u32 offset; |
| u32 architecture; |
| u32 pad[1]; |
| } __packed; |
| |
| struct cbfile { |
| u64 magic; |
| u32 len; |
| u32 type; |
| u32 checksum; |
| u32 offset; |
| char filename[0]; |
| } __packed; |
| |
| static int filecount = 0, selected = 0, start_row = 0; |
| static char **filenames; |
| static struct cbheader *header = NULL; |
| |
| static struct cbfile *getfile(struct cbfile *f) |
| { |
| while (1) { |
| if (f < (struct cbfile *)(0xffffffff - ntohl(header->romsize))) |
| return NULL; |
| if (f->magic == 0) |
| return NULL; |
| if (f->magic == LARCHIVE_MAGIC) |
| return f; |
| f = (struct cbfile *)((u8 *)f + ntohl(header->align)); |
| } |
| } |
| |
| static struct cbfile *firstfile(void) |
| { |
| return getfile((void *)(0 - ntohl(header->romsize) + |
| ntohl(header->offset))); |
| } |
| |
| static struct cbfile *nextfile(struct cbfile *f) |
| { |
| f = (struct cbfile *)((u8 *)f + ALIGN(ntohl(f->len) + ntohl(f->offset), |
| ntohl(header->align))); |
| return getfile(f); |
| } |
| |
| static struct cbfile *findfile(const char *filename) |
| { |
| struct cbfile *f; |
| for (f = firstfile(); f; f = nextfile(f)) { |
| if (strcmp(filename, f->filename) == 0) |
| return f; |
| } |
| return NULL; |
| } |
| |
| static int cbfs_module_init(void) |
| { |
| struct cbfile *f; |
| int index = 0; |
| |
| header = *(void **)HEADER_ADDR; |
| if (header->magic != ntohl(HEADER_MAGIC)) { |
| header = NULL; |
| return 0; |
| } |
| |
| for (f = firstfile(); f; f = nextfile(f)) |
| filecount++; |
| |
| filenames = malloc(filecount * sizeof(char *)); |
| if (filenames == NULL) |
| return 0; |
| |
| for (f = firstfile(); f; f = nextfile(f)) |
| filenames[index++] = strdup((const char *)f->filename); |
| |
| return 0; |
| } |
| |
| static int cbfs_module_redraw(WINDOW * win) |
| { |
| struct cbfile *f; |
| int i, row, frow; |
| |
| print_module_title(win, "CBFS Listing"); |
| |
| if (!header) { |
| mvwprintw(win, 11, 61 / 2, "Bad or missing CBFS header"); |
| return 0; |
| } |
| |
| /* Draw a line down the middle. */ |
| for (i = 2; i < 21; i++) |
| mvwaddch(win, i, 30, ACS_VLINE); |
| |
| /* Draw the names down the left side. */ |
| for (frow = 0; frow < FILES_VISIBLE; frow++) { |
| row = 2 + frow; |
| i = start_row + frow; |
| if (i >= filecount) |
| break; |
| if (i == selected) |
| wattrset(win, COLOR_PAIR(3) | A_BOLD); |
| else |
| wattrset(win, COLOR_PAIR(2)); |
| |
| if (strlen(filenames[i]) == 0) { |
| if (findfile(filenames[i])->type == COMPONENT_NULL) |
| mvwprintw(win, row, 1, "<free space>"); |
| else |
| mvwprintw(win, row, 1, "<unnamed>"); |
| } else { |
| mvwprintw(win, row, 1, "%.25s", filenames[i]); |
| } |
| /* show scroll arrows */ |
| if (frow == 0 && start_row > 0) { |
| wattrset(win, COLOR_PAIR(2)); |
| mvwaddch(win, row, 28, ACS_UARROW); |
| } |
| if (frow == FILES_VISIBLE - 1 && i != filecount - 1) { |
| wattrset(win, COLOR_PAIR(2)); |
| mvwaddch(win, row, 28, ACS_DARROW); |
| } |
| } |
| |
| f = findfile(filenames[selected]); |
| if (!f) { |
| mvwprintw(win, 11, 32, "ERROR: CBFS component not found"); |
| return 0; |
| } |
| |
| wattrset(win, COLOR_PAIR(2)); |
| |
| /* Draw the file information */ |
| row = 2; |
| /* mvwprintw(win, row++, 32, "Offset: 0x%x", f->offset); *//* FIXME */ |
| mvwprintw(win, row, 32, "Type: "); |
| switch (ntohl(f->type)) { |
| case COMPONENT_BOOTBLOCK: |
| mvwprintw(win, row++, 38, "bootblock"); |
| break; |
| case COMPONENT_CBFSHEADER: |
| mvwprintw(win, row++, 38, "CBFS header"); |
| break; |
| case COMPONENT_STAGE: |
| mvwprintw(win, row++, 38, "stage"); |
| break; |
| case COMPONENT_SELF: |
| mvwprintw(win, row++, 38, "simple ELF"); |
| break; |
| case COMPONENT_FIT: |
| mvwprintw(win, row++, 38, "FIT"); |
| break; |
| case COMPONENT_OPTIONROM: |
| mvwprintw(win, row++, 38, "optionrom"); |
| break; |
| case COMPONENT_RAW: |
| mvwprintw(win, row++, 38, "raw"); |
| break; |
| case COMPONENT_MICROCODE: |
| mvwprintw(win, row++, 38, "microcode"); |
| break; |
| case COMPONENT_CMOS_LAYOUT: |
| mvwprintw(win, row++, 38, "cmos layout"); |
| break; |
| case COMPONENT_NULL: |
| mvwprintw(win, row++, 38, "free"); |
| break; |
| case COMPONENT_DELETED: |
| mvwprintw(win, row++, 38, "deleted"); |
| break; |
| default: |
| mvwprintw(win, row++, 38, "Unknown (0x%x)", ntohl(f->type)); |
| break; |
| } |
| mvwprintw(win, row++, 32, "Size: %d", ntohl(f->len)); |
| mvwprintw(win, row++, 32, "Checksum: 0x%x", ntohl(f->checksum)); |
| |
| return 0; |
| } |
| |
| static int cbfs_module_handle(int key) |
| { |
| int ret = 0; |
| |
| if (filecount == 0) |
| return 0; |
| |
| switch (key) { |
| case KEY_DOWN: |
| if (selected + 1 < filecount) { |
| selected++; |
| if (selected >= start_row + FILES_VISIBLE - 1) |
| start_row = selected - (FILES_VISIBLE - 1); |
| ret = 1; |
| } |
| break; |
| case KEY_UP: |
| if (selected > 0) { |
| selected--; |
| if (selected < start_row) |
| start_row = selected; |
| ret = 1; |
| } |
| break; |
| } |
| |
| return ret; |
| } |
| |
| struct coreinfo_module cbfs_module = { |
| .name = "CBFS", |
| .init = cbfs_module_init, |
| .redraw = cbfs_module_redraw, |
| .handle = cbfs_module_handle |
| }; |
| |
| #else |
| |
| struct coreinfo_module cbfs_module = { |
| }; |
| |
| #endif |