If it is, it points to reuse of a tx key, which isn't meant to happen.
If it does, a key image collision means that only one of those
outputs is spendable, so the wallet selects the larger amount,
unless that output was spent already.
This causes a discrepancy betewen reported received inputs and
payment total.
Since tx keys are 256 bits, this should never happen except if
done on purpose, or if a sender uses a bad PRNG.
Locking just one db turns out to not have been a good idea, since
the pool and p2p state fdles have to be used anyway.
Also ensure the directory exists before tring to lock.
- Blockchain should store if it's running on testnet or not
- moved loading compiled-in block hashes to its own function for clarity
- on handle_get_objects, should now correctly return false if a block's
transactions are missing
- replace instances of BOOST_FOREACH with C++11 for loops in Blockchain.
7fc6fa3 wallet: forbid dust altogether in output selection where appropriate (moneromooo-monero)
5e1a739 blockchain: log number of outputs available for a new tx (moneromooo-monero)
bcac101 daemon: fix a few issues reported by valgrind (moneromooo-monero)
a7e8174 tx_pool: fix serialization of new relayed data (moneromooo-monero)
601ad76 hardfork: fix mixup in indexing variable in get_voting_info (moneromooo-monero)
444e22f blockchain: remove unused timer (moneromooo-monero)
7edfdd8 blockchain: fix m_sync_counter uninitialized variable use (moneromooo-monero)
d97582c epee: use generate_random_bytes for new random uuids (moneromooo-monero)
17c7c9c epee: remove dodgy random code that nobody uses (moneromooo-monero)
A boost lock is used to determine whether more than one process
wants to access the database. The boost file_lock doesn't seem
to like locking directories, so we use an arbitrary file in it.
This allows to still run two daemons if they have different
database directories (ie, LMDB/BDB, different data directories).
In particular, ensure we check the status of RPC response structures,
as some functions will return success, but with a BUSY status, when
the daemon is not yet synced, and the response will not filled.
94b98fb tx_pool: do not accept txes not in a block if they timed out before (moneromooo-monero)
eadbdf3 tx_pool: fix use of invalidated iterator (moneromooo-monero)
3b1d7e0 Fix V1/V2 use of hard fork related parameters (moneromooo-monero)
This is intended to avoid cases where a timed out tx will be
re-relayed by another peer for which it has not timed out yet,
which would cause the tx to stay in the network's pool for a
long time (until all peers time it out before another one
tries to relay it again).
This improves blockchain reorganization time by allowing one of the more
expensive DB lookups when popping a block to not have to seek through a
long dup list in the "output_amounts" db. This is most noticeable for
HDDs.
See ffcf6bdb95
Data should be removed in the reverse order it was added.
This matches the order of removal in
blockchain_storage::pop_transaction_from_global_index.
See f11def012f
c5baf30 use load_file_to_string and exit with error on file read errors (Fabian Hirschmann)
7b2d27f remove new lines at the end of the password only (Fabian Hirschmann)
302cc9c add --password-file option (Fabian Hirschmann)
The value will be different depending on whether we've reached
the first hard fork, which allows a larger size, or not.
This fixes transactions being rejected by the daemon on mainnet
where the first hard fork is not yet active.
This ensures this will be done without fail, as the error prone
matching of every return with a call to KILL_IOSERVICE leads to
hard to debug corruption when one is missing.
- only try to stop if actually started
- print number of threads before zeroing it
This fixes the suspiciously doubled "Mining has been stopped"
message on exit.
Blockchain hashes and key images are flushed, and blocks are
pulled anew from the daemon.
The console command is shortened to match bc_height.
This should make it a lot easier on users who are currently
told to remove this particular cache file but keep the keys
one, etc, etc.
61ce8d6 wallet_rpc_server: exit async, so we reply to stop_wallet RPC (moneromooo-monero)
9847db6 wallet: do not return error if incoming_transfers finds none (moneromooo-monero)
b39aae7 Tweak 45800a25e9 (hyc)
4a5a5ff blockchain: always stop the ioservice before returning (moneromooo-monero)
78b65cf db_lmdb: safety close db at exit (moneromooo-monero)
45800a2 db_lmdb: fix a strdup/delete[] mistmatch (moneromooo-monero)
79beed2 tests: fix various tests by using parameters better suited to monero (moneromooo-monero)
d0a8362 tests: fix some double spending tests (moneromooo-monero)
2358d0d tests: use 255 as a "too high" block version (moneromooo-monero)
f33a88c blockchain: fix a few block addition bugs (moneromooo-monero)
a9ff11c blockchain: fix an off by one error in unlocked time check (moneromooo-monero)
f294be3 blockchain: reinstate double spending checks in check_tx_inputs (moneromooo-monero)
737b6d6 blockchain: make some flag twiddling code closer to the original (moneromooo-monero)
81cb0fc blockchain: fix bitflipping test with quantized block rewards (moneromooo-monero)
22ddf09 blockchain: add missing m_tx_pool.on_blockchain_dec (moneromooo-monero)
d837c0c blockchain: fix switch to alternative blockchain for more than one block (moneromooo-monero)
5cec076 blockchain: add a missing validity check to rollback_blockchain_switching (moneromooo-monero)
3cabdb5 core: catch exceptions from get_output_key (moneromooo-monero)
5eef645 db: throw when given a non txout_to_key output to add (moneromooo-monero)
If the block reward was too high, the verification failed flag
was set, but the function continued. The code which was supposed
to trap this flag and return failure failed to trap it, and,
while the block was not added to the chain, the function would
return success.
The reason for avoiding returning when the block reward problem
was detected was to be able to return any transactions to the
pool if needed. This is now mooted by moving the transaction
return code to a separate function, which is now called at all
appropriate points, making the logic much simpler, and hopefully
correct now.
We also move the hard fork version check after the prev_id check,
as block which does not go on the top of the chain might not
have the expected version there, without being invalid just for
this reason.
Last, we trap the case where a block fails to be added due to
using already spent key images, to set the verification failed
flag.
This fixes some double spending tests.
This may or may not be unneeded in normal (non test) circumstances,
to be determined later. Keeping these for now may be slower, but safer.
Block reward may now be less than the full amount allowed.
This was breaking the bitflipping test.
We now keep track of whether a block which was accepted by the core
has a lower than allowed block reward, and allow this in the test.
The check was explicit in the original version, so it seems
safer to make it explicit here, especially as it is now done
implicitely in a different place, away from the original check.
ffcf6bd BlockchainLMDB: When removing, find amount output index fast by starting at end (warptangent)
f11def0 BlockchainLMDB: Remove tx outputs in reverse order (warptangent)
Data should be removed in the reverse order it was added. Not doing so
breaks assumptions and can cause problems in other DB implementations.
This matches the order of tx removal in
blockchain_storage::purge_block_data_from_blockchain.
This improves blockchain reorganization time by allowing one of the more
expensive DB lookups when popping a block to not have to seek through a
long dup list in the "output_amounts" subdb. This is most noticeable for
HDDs.
As before, the dup list is still walked if necessary (but in reverse),
and the global output index still confirmed to be the one looked for.
But under proper use, the result will be found at the end of the dup
list, so we start there.
Removing an amount output index is always done in the context of popping
a block, so the global output index being looked for should be the last
one in that amount key's dup list. Even if the txs themselves aren't
removed in reverse order (supposed to be according to original
implementation), the specified amount output index will still be near
the end, because the txs are in the same block.
TEST:
Pop blocks with blockchain_import.
Blocks should be successfully removed with no errors shown.
bitmonerod should be able to start syncing from the reduced blockchain
height.
8ea7af1 Allow the wallet to access hard fork information (moneromooo-monero)
760331b epee: make log macros behave like statements (moneromooo-monero)
3f2970f Add missing semicolons after log statements (moneromooo-monero)
In particular, <boost/program_options.hpp> blows up daemon.cpp.obj,
making it too big to compile in debug mode on Win32. Even on a
release build it drops daemon.cpp.o on Linux from 31MB to 20MB.
This has no effect on the final linked binary size.
The version number passed to those data's serialize function
was always 0, not the wallet's version as I had expected.
A version number now exists for these structures so they're
versioned correctly.
9079a32 Fix typo (warptangent)
3796941 blockchain.cpp: Change indentation from 4 to 2 spaces (warptangent)
725acc7 Replace tabs with two spaces for consistency with rest of codebase (warptangent)
Sample use:
DNS_PUBLIC=tcp torsocks bin/bitmonerod --p2p-bind-ip 127.0.0.1
Test:
Run above with --log-level 4 with and without DNS_PUBLIC environment
variable set.
DNS debugging info should show successful DNS lookups only when
DNS_PUBLIC is set to "tcp":
DNS lookup for seeds.moneroseeds.se: 17 results
DNS lookup for seeds.moneroseeds.ae.org: 17 results
DNS lookup for seeds.moneroseeds.ch: 12 results
DNS lookup for seeds.moneroseeds.li: 12 results
cbded43 core_tests: fix ring_signature_1 tests (moneromooo-monero)
c3d208f core_tests: bump default test fee to 0.02 monero (moneromooo-monero)
10da0a0 add a --fakechain argument for tests (moneromooo-monero)
eee44e6 unit_tests: fix block reward test using post hard fork settings (moneromooo-monero)
595893f blockchain: log block (not chain) height in "BLOCK SUCCESFULLY ADDED" (moneromooo-monero)
2369968 blockchain: fix off by one in get_blocks (moneromooo-monero)
8af913a db_lmdb: implement BlockchainLMDB::reset (moneromooo-monero)
4833f4f db_bdb: implement BlockchainBDB::reset (moneromooo-monero)
18bf06e tx_pool: fix "minumim" typo in message (moneromooo-monero)
44f1267 tests: fix a typo in test name (moneromooo-monero)
1494557 db_lmdb: create all needed directories, not just the leaf one (moneromooo-monero)
015b68a db_bdb: create all needed directories, not just the leaf one (moneromooo-monero)
f141869 tests: remove data-dir argument registration (moneromooo-monero)
This prevents the intermediate thread from exiting properly, as
fork creates a child process with only one thread, so any existing
data_logger thread will not be in the child. Since this thread
sets a flag the data_logger dtor blocks on, all children threads
will hang on exit.
When throwing an exception from being unable to begin an LMDB
transaction, include the reason.
It's often been due to a write transaction attempted within a write
transaction (batch mode), but there can be other reasons such as write
transaction attempted while database was opened read only, or
environment's map needs to be resized.
The core tests use the blockchain, and reset it to be able
to add test data to it. This does not play nice with the
databases, since those will save that data without an explicit
save call.
We add a fakechain flag that the tests will set, which tells
the core and blockchain code to use a separate database, as
well as skip a few things like checkpoints and fixup, which
only make sense for real data.
Data is only guaranteed to be valid within the lifetime of a txn.
You cannot use data returned from LMDB after the txn ends.
Also, fixed a missing txn.commit BlockchainLMDB::get_tx_unlock_time()
This fixes coretests, which does not register daemon specific arguments,
but uses core, which uses those arguments. Also gets rid of an unwanted
dependency on daemon code from core.
This is a precaution for older Berkeley DB versions.
- smooth reports an issue running with 4.7:
DB_ENV->log_set_config: DB_LOG_IN_MEMORY: method not permitted
after handle's open method
- this works just fine with 5.3
- we do not use DB_LOG_IN_MEMORY, but we use DB_LOG_AUTO_REMOVE
- libdb docs say some flags must be set before open, and some
may be set at any time, but never say some must be set after
open
- moving the call to log_set_config before open works with 5.3
Therefore, it seems best to move the call before open.
Early DB versions did not store key images for inputs if the
transaction spending them had no outputs (ie, all fee). This
is not correct, as this would allow these outputs to be double
spent. This was fixed in 533acc30ed
a few months ago, but databases having synced blocks 2021612 and
685498 with a faulty version will be missing those key images
in the spent keys database. This code checks for this, and adds
those key images if they are missing.
Berkeley DB uses 1 based indices for RECNO databases, and the
implementation of BlockchainDB for Berkeley DB assumes 1 based
indices are passed to the API, whereas the LMDB one assumes
0 based indices. This is all internally consisteny, but since
the BDB code stores 1 based indices in the database, external
users have to be aware of this, as the indices will be off by
one depending on which DB is used.
^C while in manual refresh will cancel the refresh, since that's
often an annoying thing to have to wait for. Also, a manual refresh
command will interrupt any running background refresh and take
over, rather than wait for the background refresh to be done, and
look to be hanging.
