| 12 | #include "utils.h" |
| 13 | |
| 14 | bool storage_open(const char store_file[], struct storage_t *storage, bool rw) |
| 15 | { |
| 16 | storage->rw = rw; |
| 17 | |
| 18 | storage->file = map_file(store_file, rw); |
| 19 | if (storage->file.start == NULL) { |
| 20 | fprintf(stderr, "Failed to load smm-store-file \"%s\"\n", |
| 21 | store_file); |
| 22 | return false; |
| 23 | } |
| 24 | |
| 25 | /* If we won't find FMAP with SMMSTORE, use the whole file, but fail if |
| 26 | * FMAP is there without SMMSTORE. */ |
| 27 | storage->region = storage->file; |
| 28 | |
| 29 | long fmap_offset = fmap_find(storage->file.start, storage->file.length); |
| 30 | if (fmap_offset >= 0) { |
| 31 | struct fmap *fmap = (void *)(storage->file.start + fmap_offset); |
| 32 | const struct fmap_area *area = fmap_find_area(fmap, "SMMSTORE"); |
| 33 | if (area == NULL) { |
| 34 | fprintf(stderr, |
| 35 | "Found FMAP without SMMSTORE in \"%s\"\n", |
| 36 | store_file); |
| 37 | return false; |
| 38 | } |
| 39 | |
| 40 | storage->region.start += area->offset; |
| 41 | storage->region.length = area->size; |
| 42 | } |
| 43 | |
| 44 | bool is_auth_var_store; |
| 45 | if (!fv_parse(storage->region, &storage->store_area, &is_auth_var_store)) { |
| 46 | if (!rw) { |
| 47 | fprintf(stderr, |
| 48 | "Failed to find variable store in \"%s\"\n", |
| 49 | store_file); |
| 50 | goto error; |
| 51 | } |
| 52 | |
| 53 | fprintf(stderr, |
| 54 | "\nThe variable store has not been found in the ROM image\n" |
| 55 | "and is about to be initialized. This situation is normal\n" |
| 56 | "for a release image, as the variable store is usually\n" |
| 57 | "initialized on the first boot of the platform.\n\n"); |
| 58 | |
| 59 | if (!fv_init(storage->region)) { |
| 60 | fprintf(stderr, |
| 61 | "Failed to create variable store in \"%s\"\n", |
| 62 | store_file); |
| 63 | goto error; |
| 64 | } |
| 65 | |
| 66 | if (!fv_parse(storage->region, &storage->store_area, &is_auth_var_store)) { |
| 67 | fprintf(stderr, |
| 68 | "Failed to parse newly formatted store in \"%s\"\n", |
| 69 | store_file); |
| 70 | goto error; |
| 71 | } |
no test coverage detected