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authorGavin Andresen <gavinandresen@gmail.com>2012-09-18 14:30:47 -0400
committerGavin Andresen <gavinandresen@gmail.com>2012-10-08 17:46:45 -0400
commiteed1785f701be93ac2464e854c2a7de1f748ef84 (patch)
tree012b0bae35dfc7f35c10d341e50dd31fb88c6cf1 /src/walletdb.h
parent8d5f461cb6d4bb954fef5c3deebe2b2a7bdbfe27 (diff)
Handle corrupt wallets gracefully.
Corrupt wallets used to cause a DB_RUNRECOVERY uncaught exception and a crash. This commit does three things: 1) Runs a BDB verify early in the startup process, and if there is a low-level problem with the database: + Moves the bad wallet.dat to wallet.timestamp.bak + Runs a 'salvage' operation to get key/value pairs, and writes them to a new wallet.dat + Continues with startup. 2) Much more tolerant of serialization errors. All errors in deserialization are reported by tolerated EXCEPT for errors related to reading keypairs or master key records-- those are reported and then shut down, so the user can get help (or recover from a backup). 3) Adds a new -salvagewallet option, which: + Moves the wallet.dat to wallet.timestamp.bak + extracts ONLY keypairs and master keys into a new wallet.dat + soft-sets -rescan, to recreate transaction history This was tested by randomly corrupting testnet wallets using a little python script I wrote (https://gist.github.com/3812689)
Diffstat (limited to 'src/walletdb.h')
-rw-r--r--src/walletdb.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/walletdb.h b/src/walletdb.h
index f078481811..a3e779ab9d 100644
--- a/src/walletdb.h
+++ b/src/walletdb.h
@@ -17,6 +17,7 @@ enum DBErrors
{
DB_LOAD_OK,
DB_CORRUPT,
+ DB_NONCRITICAL_ERROR,
DB_TOO_NEW,
DB_LOAD_FAIL,
DB_NEED_REWRITE
@@ -153,8 +154,10 @@ public:
int64 GetAccountCreditDebit(const std::string& strAccount);
void ListAccountCreditDebit(const std::string& strAccount, std::list<CAccountingEntry>& acentries);
- int ReorderTransactions(CWallet*);
- int LoadWallet(CWallet* pwallet);
+ DBErrors ReorderTransactions(CWallet*);
+ DBErrors LoadWallet(CWallet* pwallet);
+ static bool Recover(CDBEnv& dbenv, std::string filename, bool fOnlyKeys);
+ static bool Recover(CDBEnv& dbenv, std::string filename);
};
#endif // BITCOIN_WALLETDB_H