This is a first step towards cleaning up our DoS interface - make
validation return *why* something is invalid, and let net_processing
figure out what that implies in terms of banning/disconnection/etc.
Behavior change: peers will now be banned for providing blocks
with premature coinbase spends.
Co-authored-by: Anthony Towns <aj@erisian.com.au>
Suhas Daftuar <sdaftuar@gmail.com>
Compared with previous bans, the following changes are made:
* Txn with empty vin/vout or null prevouts move from 10 DoS
points to 100.
* Loose transactions with a dependency loop now result in a ban
instead of 10 DoS points.
* Many pre-segwit soft-fork errors now result in a ban.
Note: Transactions that violate soft-fork script flags since P2SH do not generally
result in a ban. Also, banning behavior for invalid blocks is dependent on
whether the node is validating with multiple script check threads, due to a long-
standing bug. That inconsistency is still present after this commit.
* Proof of work failure moves from 50 DoS points to a ban.
* Blocks with timestamps under MTP now result in a ban, blocks
too far in the future continue to *not* result in a ban.
* Inclusion of non-final transactions in a block now results in a
ban instead of 10 DoS points.
Co-authored-by: Anthony Towns <aj@erisian.com.au>
Isolate the decision of whether to ban a peer to one place in the
code, rather than having it sprinkled throughout net_processing.
Co-authored-by: Anthony Towns <aj@erisian.com.au>
Suhas Daftuar <sdaftuar@gmail.com>
John Newbery <john@johnnewbery.com>
This comment was confusing and incorrect when first added ("invalid rather than
merely non-standard" has the opposite meaning of what is actually the case),
and was also not updated after segwit with the correct variable names.
Delete it since the code reads just fine on its own.
Co-authored by: Anthony Towns <aj@erisian.com.au>
Suhas Daftuar <sdaftuar@gmail.com>
beb42d71a0 Silence GCC 7 warning "control reaches end of non-void function" (-Wreturn-type) in psbt.cpp (practicalswift)
Pull request description:
Silence GCC 7 warning "control reaches end of non-void function" (`-Wreturn-type`) in `psbt.cpp`.
Context: ef22fe8c1f (r33370109)
Before this patch:
```
$ ./configure CC=gcc-7 CXX=g++-7
$ make 2>&1 | grep -A2 "warning: "
leveldb/util/logging.cc:58:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
(v == kMaxUint64/10 && delta > kMaxUint64%10)) {
~~~~~~^~~~~~~~~~~~~~~
--
leveldb/port/port_posix.cc:60:15: warning: ‘ecx’ may be used uninitialized in this function [-Wmaybe-uninitialized]
return (ecx & (1 << 20)) != 0;
~~~~~^~~~~~~~~~~~
--
psbt.cpp:341:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
$
```
After this patch:
```
$ ./configure CC=gcc-7 CXX=g++-7
$ make 2>&1 | grep -A2 "warning: "
leveldb/util/logging.cc:58:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
(v == kMaxUint64/10 && delta > kMaxUint64%10)) {
~~~~~~^~~~~~~~~~~~~~~
--
leveldb/port/port_posix.cc:60:15: warning: ‘ecx’ may be used uninitialized in this function [-Wmaybe-uninitialized]
return (ecx & (1 << 20)) != 0;
~~~~~^~~~~~~~~~~~
$
```
ACKs for commit beb42d:
Tree-SHA512: b068b9aef565cae0bd1fa1f79c8d422ed2c3e7645edfa14a780a36dd66095a3c627f4111a6b16e706ce6c8abafe51725af8b3bf60778821de0aa8f6193bfadf8
5d35ae3326 Handle the result of posix_fallocate system call (Luca Venturini)
Pull request description:
The system call `posix_fallocate` is not supported on some filesystems.
- catches the result of posix_allocate and fall back to the default behaviour if the return value is different from 0 (success)
Fixes#15624
ACKs for commit 5d35ae:
MarcoFalke:
utACK 5d35ae3326
sipa:
utACK 5d35ae3326, though the Yoda condition is an uncommon style in this project.
hebasto:
utACK 5d35ae3326
practicalswift:
utACK 5d35ae3326
Tree-SHA512: 7ab3b35fb633926f28a58b2b07ffde8e31bb997c80a716b1b45ee716fe9ff4ddcef0a05810bd4423530e220cfc62f8925517d27a8b92b05a524272063e43f746
422677963a refactor: replace isPotentialtip/waitForNotifications by higher method (Antoine Riard)
edfe9438ca Add WITH_LOCK macro: run code while locking a mutex (Antoine Riard)
Pull request description:
In Chain interface, instead of a isPotentialTip and a WaitForNotifications method, both used only once in CWallet::BlockUntilSyncedToCurrentChain, combine them in a higher WaitForNotificationsUpToTip method. Semantic should be unchanged, wallet wait for pending notifications to be processed unless block hash points to the current chain tip or a descendant.
ACKs for commit 422677:
jnewbery:
ACK 422677963a
ryanofsky:
utACK 422677963a. Only change is adding the cs_wallet lock annotation.
Tree-SHA512: 2834ff0218795ef607543fae822e5cce25d759c1a9cfcb1f896a4af03071faed5276fbe0966e0c6ed65dc0e88af161899c5b2ca358a2d24fe70969a550000bf2
effe81f750 Move g_is_mempool_loaded into CTxMemPool::m_is_loaded (Ben Woosley)
bb8ae2c419 rpc: Expose g_is_mempool_loaded via getmempoolinfo and /rest/mempool/info.json (Ben Woosley)
Pull request description:
And use it to fix a race condition in mempool_persist.py:
https://travis-ci.org/Empact/bitcoin/jobs/487577243
Since e.g. getrawmempool returns errors based on this status, this
enables users to test it for readiness.
Fixes#12863
ACKs for commit effe81:
MarcoFalke:
utACK effe81f750
jnewbery:
utACK effe81f750
Tree-SHA512: 74328b0c17a97efb8a000d4ee49b9a673c2b6dde7ea30c43a6a2eff961a233351c9471f9a42344412135786c02bdf2ee1b2526651bb8fed68bd94d2120c4ef86
fa90a89eee [test] combine_logs: append node stderr and stdout if it exists (MarcoFalke)
Pull request description:
See issue:
* tests: bitcoind stdout and error should be passed to the logger #13519
ACKs for commit fa90a8:
laanwj:
utACK fa90a89eee
Tree-SHA512: 39c4596e2e133c9011ab01bc4dc24e884d0a8cce7a67d3765f17c288d3ffbd438e1ff6016d0f817a981b27fce17fa77a1ff56787ddb1ea55123ce9ecffb44c08
fa79a783d6 test: Add reorg test to wallet_balance (MarcoFalke)
fad03cd046 test: Check that wallet txs not in the mempool are untrusted (MarcoFalke)
fa195315e6 test: Add getunconfirmedbalance test with conflicts (MarcoFalke)
fa464e8211 test: Add wallet_balance test for watchonly (MarcoFalke)
Pull request description:
Second commit can be reviewed with `--ignore-all-space`
ACKs for commit fa79a7:
jnewbery:
utACK fa79a783d6
Tree-SHA512: ec4919a3c93b6dcb35d58e7c65bdffe7f4c8cb87b9287f3679631c1823ef5bd72789f233def94e60c1ab332711601751645566f5997ce250af55b328ed60e917
151f3e9cf1 Add settings merge test to prevent regresssions (Russell Yanofsky)
Pull request description:
Test-only change. Motivation: I'm trying to clean up settings code and add support for read/write settings without changing existing behavior, but current tests are very scattershot and don't actually cover a lot of current behavior.
ACKs for commit 151f3e:
jonasschnelli:
utACK 151f3e9cf1.
MarcoFalke:
utACK 151f3e9cf1
Tree-SHA512: f9062f078da02855cdbdcae37d0cea5684e82adbe5c701a8eb042ee4a57d899f0ffb6a9db3bcf58b639dff22b2b2d8a75f9a7917402df58904036753d65a1e3e
