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Diffstat (limited to 'ks_flash.c')
-rw-r--r--ks_flash.c85
1 files changed, 29 insertions, 56 deletions
diff --git a/ks_flash.c b/ks_flash.c
index e073b84..803d81c 100644
--- a/ks_flash.c
+++ b/ks_flash.c
@@ -139,7 +139,6 @@ typedef union {
uint8_t bytes[KEYSTORE_SUBSECTOR_SIZE];
flash_block_header_t header;
flash_key_block_t key;
- flash_attributes_block_t attr;
flash_pin_block_t pin;
} flash_block_t;
@@ -330,7 +329,6 @@ static hal_error_t block_read(const unsigned blockno, flash_block_t *block)
return HAL_OK;
case BLOCK_TYPE_KEY:
case BLOCK_TYPE_PIN:
- case BLOCK_TYPE_ATTR:
break;
default:
return HAL_ERROR_KEYSTORE_BAD_BLOCK_TYPE;
@@ -483,7 +481,6 @@ static hal_error_t block_write(const unsigned blockno, flash_block_t *block)
switch (block_get_type(block)) {
case BLOCK_TYPE_KEY:
case BLOCK_TYPE_PIN:
- case BLOCK_TYPE_ATTR:
block->header.crc = calculate_block_crc(block);
break;
default:
@@ -501,8 +498,10 @@ static hal_error_t block_write(const unsigned blockno, flash_block_t *block)
* Update one flash block, including zombie jamboree.
*/
-static hal_error_t block_update(const unsigned b1, flash_block_t *block,
- const hal_uuid_t * const uuid, int *hint)
+static hal_error_t block_update(const unsigned b1,
+ flash_block_t *block,
+ const hal_uuid_t * const uuid,
+ int *hint)
{
if (block == NULL)
return HAL_ERROR_IMPOSSIBLE;
@@ -648,7 +647,6 @@ static hal_error_t ks_init(const hal_ks_driver_t * const driver, const int alloc
switch (block_types[i]) {
case BLOCK_TYPE_KEY:
case BLOCK_TYPE_PIN:
- case BLOCK_TYPE_ATTR:
block_status[i] = block_get_status(block);
break;
default:
@@ -672,13 +670,12 @@ static hal_error_t ks_init(const hal_ks_driver_t * const driver, const int alloc
switch (block_types[i]) {
case BLOCK_TYPE_KEY: uuid = &block->key.name; break;
- case BLOCK_TYPE_ATTR: uuid = &block->attr.name; break;
case BLOCK_TYPE_PIN: uuid = &pin_uuid; break;
default: /* Keep GCC happy */ break;
}
if (uuid != NULL) {
- db.ksi.names[i].name = *uuid;
+ db.ksi.names[i] = *uuid;
db.ksi.index[n++] = i;
}
}
@@ -746,7 +743,7 @@ static hal_error_t ks_init(const hal_ks_driver_t * const driver, const int alloc
if (block_status[b_tomb] != BLOCK_STATUS_TOMBSTONE)
continue;
- hal_uuid_t name = db.ksi.names[b_tomb].name;
+ hal_uuid_t name = db.ksi.names[b_tomb];
int where = -1;
@@ -764,8 +761,8 @@ static hal_error_t ks_init(const hal_ks_driver_t * const driver, const int alloc
}
}
- const int matches_next = where + 1 < db.ksi.used && !hal_uuid_cmp(&name, &db.ksi.names[db.ksi.index[where + 1]].name);
- const int matches_prev = where - 1 >= 0 && !hal_uuid_cmp(&name, &db.ksi.names[db.ksi.index[where - 1]].name);
+ const int matches_next = where + 1 < db.ksi.used && !hal_uuid_cmp(&name, &db.ksi.names[db.ksi.index[where + 1]]);
+ const int matches_prev = where - 1 >= 0 && !hal_uuid_cmp(&name, &db.ksi.names[db.ksi.index[where - 1]]);
if ((matches_prev && matches_next) ||
(matches_prev && block_status[db.ksi.index[b_tomb - 1]] != BLOCK_STATUS_LIVE) ||
@@ -831,7 +828,7 @@ static hal_error_t ks_init(const hal_ks_driver_t * const driver, const int alloc
block->pin.so_pin = db.so_pin;
block->pin.user_pin = db.user_pin;
- if ((err = hal_ks_index_add(&db.ksi, &pin_uuid, 0, &b, NULL)) != HAL_OK)
+ if ((err = hal_ks_index_add(&db.ksi, &pin_uuid, &b, NULL)) != HAL_OK)
goto done;
cache_mark_used(block, b);
@@ -926,7 +923,7 @@ static hal_error_t ks_store(hal_ks_t *ks,
k = &block->key;
- if ((err = hal_ks_index_add(&db.ksi, &slot->name, 0, &b, &slot->hint)) != HAL_OK)
+ if ((err = hal_ks_index_add(&db.ksi, &slot->name, &b, &slot->hint)) != HAL_OK)
goto done;
cache_mark_used(block, b);
@@ -962,7 +959,7 @@ static hal_error_t ks_store(hal_ks_t *ks,
memset(block, 0, sizeof(*block));
cache_release(block);
- (void) hal_ks_index_delete(&db.ksi, &slot->name, 0, NULL, &slot->hint);
+ (void) hal_ks_index_delete(&db.ksi, &slot->name, NULL, &slot->hint);
done:
hal_ks_unlock();
@@ -982,8 +979,8 @@ static hal_error_t ks_fetch(hal_ks_t *ks,
hal_ks_lock();
- if ((err = hal_ks_index_find(&db.ksi, &slot->name, 0, &b, &slot->hint)) != HAL_OK ||
- (err = block_read_cached(b, &block)) != HAL_OK)
+ if ((err = hal_ks_index_find(&db.ksi, &slot->name, &b, &slot->hint)) != HAL_OK ||
+ (err = block_read_cached(b, &block)) != HAL_OK)
goto done;
if (block_get_type(block) != BLOCK_TYPE_KEY) {
@@ -1031,45 +1028,19 @@ static hal_error_t ks_delete(hal_ks_t *ks,
return HAL_ERROR_BAD_ARGUMENTS;
hal_error_t err = HAL_OK;
- unsigned n;
+ unsigned b;
hal_ks_lock();
- {
- /*
- * Get the count of blocks to delete.
- */
-
- if ((err = hal_ks_index_delete_range(&db.ksi, &slot->name, 0, &n, NULL, &slot->hint)) != HAL_OK)
- goto done;
-
- /*
- * Then delete them.
- */
-
- unsigned b[n];
-
- if ((err = hal_ks_index_delete_range(&db.ksi, &slot->name, n, NULL, b, &slot->hint)) != HAL_OK)
- goto done;
-
- for (int i = 0; i < n; i++)
- cache_release(cache_find_block(b[i]));
+ if ((err = hal_ks_index_delete(&db.ksi, &slot->name, &b, &slot->hint)) != HAL_OK)
+ goto done;
- /*
- * Zero the blocks, to mark them as recently used.
- */
+ cache_release(cache_find_block(b));
- for (int i = 0; i < n; i++)
- if ((err = block_zero(b[i])) != HAL_OK)
- goto done;
-
- /*
- * Erase the first block in the free list. In case of restart, this
- * puts the block back at the head of the free list.
- */
+ if ((err = block_zero(b)) != HAL_OK)
+ goto done;
- err = block_erase_maybe(db.ksi.index[db.ksi.used]);
- }
+ err = block_erase_maybe(db.ksi.index[db.ksi.used]);
done:
hal_ks_unlock();
@@ -1119,7 +1090,7 @@ static hal_error_t ks_match(hal_ks_t *ks,
*result_len = 0;
- err = hal_ks_index_find(&db.ksi, previous_uuid, 0, NULL, &i);
+ err = hal_ks_index_find(&db.ksi, previous_uuid, NULL, &i);
if (err == HAL_ERROR_KEY_NOT_FOUND)
i--;
@@ -1176,7 +1147,7 @@ static hal_error_t ks_match(hal_ks_t *ks,
continue;
}
- result[*result_len] = db.ksi.names[b].name;
+ result[*result_len] = db.ksi.names[b];
++*result_len;
}
@@ -1280,8 +1251,10 @@ static hal_error_t ks_get_attributes(hal_ks_t *ks,
if ((err = locate_attributes(block, &bytes, &bytes_len, &attrs_len)) != HAL_OK)
goto done;
- if (*attrs_len == 0)
- continue;
+ if (*attrs_len == 0) {
+ err = HAL_ERROR_ATTRIBUTE_NOT_FOUND;
+ goto done;
+ }
hal_pkey_attribute_t attrs[*attrs_len];
@@ -1428,8 +1401,8 @@ static hal_error_t fetch_pin_block(unsigned *b, flash_block_t **block)
if (b == NULL)
b = &b_;
- if ((err = hal_ks_index_find(&db.ksi, &pin_uuid, 0, b, &hint)) != HAL_OK ||
- (err = block_read_cached(*b, block)) != HAL_OK)
+ if ((err = hal_ks_index_find(&db.ksi, &pin_uuid, b, &hint)) != HAL_OK ||
+ (err = block_read_cached(*b, block)) != HAL_OK)
return err;
cache_mark_used(*block, *b);
@@ -1458,7 +1431,7 @@ static hal_error_t update_pin_block(const unsigned b,
block->pin = *new_data;
- return block_update(b, block, &pin_uuid, 0, &hint);
+ return block_update(b, block, &pin_uuid, &hint);
}
/*
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 03:25:02 +0000