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reset entry now remove old keys

pull/6932/head
paul-szczepanek-arm 2018-05-13 23:49:27 +01:00
parent 23c6a69d66
commit 8f90875cd6
1 changed files with 13 additions and 3 deletions
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16
features/FEATURE_BLE/source/generic/FileSecurityDb.cpp
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@ -40,8 +40,11 @@ const uint16_t DB_VERSION = 1;
#define DB_STORE_OFFSET_PEER_SIGNING_COUNT (DB_STORE_OFFSET_PEER_SIGNING + sizeof(csrk_t))
/* make size multiple of 4 */
#define PAD4(value) ((((value - 1) / 4) * 4) + 4)
#define DB_SIZE_STORE \
(sizeof(SecurityEntryKeys_t) + \
PAD4(sizeof(SecurityEntryKeys_t) + \
sizeof(SecurityEntryKeys_t) + \
sizeof(SecurityEntryIdentity_t) + \
sizeof(SecurityEntrySigning_t) + \
@ -65,8 +68,7 @@ const uint16_t DB_VERSION = 1;
#define DB_OFFSET_ENTRIES (DB_OFFSET_LOCAL_SIGN_COUNT + sizeof(sign_count_t))
#define DB_OFFSET_STORES (DB_OFFSET_ENTRIES + DB_SIZE_ENTRIES)
#define DB_OFFSET_MAX (DB_OFFSET_STORES + DB_SIZE_STORES)
/* make size multiple of 4 */
#define DB_SIZE ((((DB_OFFSET_MAX - 1) / 4) * 4) + 4)
#define DB_SIZE PAD4(DB_OFFSET_MAX)
typedef SecurityDb::entry_handle_t entry_handle_t;
@ -311,6 +313,14 @@ void FileSecurityDb::reset_entry(entry_handle_t db_entry) {
if (!entry) {
return;
}
fseek(_db_file, entry->file_offset, SEEK_SET);
const uint32_t zero = 0;
size_t count = DB_SIZE_STORE / 4;
while (count--) {
fwrite(&zero, sizeof(zero), 1, _db_file);
}
entry->flags = SecurityDistributionFlags_t();
entry->peer_sign_counter = 0;
}