Cache block filter headers at heights of multiples of 1000 in memory.
Block filter headers at height 1000x are checkpointed, and will be the
most frequently requested. Cache them in memory to avoid costly disk
reads.
Modifies the existing --factor flag to --timeout-factor to better express intent.
Adds rules to disable timeout if --timeout-factor is set to 0.
Modfies --timeout-factor help doc to inform users about this feature.
cd34038cbd Switch from Optional<T> to std::optional<T> (C++17). Run clang-format. (practicalswift)
fb559c1170 tests: Fill fuzzing coverage gaps for functions in util/translation.h (practicalswift)
b74f3d6c45 tests: Fill fuzzing coverage gaps for functions in consensus/validation.h (practicalswift)
c0bbf8193d tests: Fill fuzzing coverage gaps for functions in primitives/block.h (practicalswift)
Pull request description:
* Fill fuzzing coverage gaps for functions in `consensus/validation.h`
* Fill fuzzing coverage gaps for functions in `primitives/block.h`
* Fill fuzzing coverage gaps for functions in `util/translation.h`
* Switch from `Optional<T>` to `std::optional<T>` (C++17). Run `clang-format`.
See [`doc/fuzzing.md`](https://github.com/bitcoin/bitcoin/blob/master/doc/fuzzing.md) for information on how to fuzz Bitcoin Core. Don't forget to contribute any coverage increasing inputs you find to the [Bitcoin Core fuzzing corpus repo](https://github.com/bitcoin-core/qa-assets).
Happy fuzzing :)
Top commit has no ACKs.
Tree-SHA512: d6aa4634c3953ade173589a8239bd230eb317ef897835a8557acb73df01b25e5e17bf46f837838e59ec04c1f3d3b7d1309ba68c8a264d17b938215512c9e6085
8a22fd0114 avoided os-dependant path (Ferdinando M. Ametrano)
Pull request description:
The current code fails on windows because of the forward slashes; using os.path.join solves the problem and it is in general more robust
ACKs for top commit:
MarcoFalke:
ACK 8a22fd0114
Tree-SHA512: 813f27aea33f97c8afac52e716a55fc5d7fb69621023aba99d40df7e1d145e0ec8d1eee49ddd403b219bf0e0e168e0e987b05c78eaef611f744d99bf2fc8bc91
8d306862ef ci: Add fuzzbuzz integration (practicalswift)
Pull request description:
Add fuzzbuzz integration.
Just like #15338 enabled optional FreeBSD building via Cirrus CI (`.cirrus.yml`) this PR adds optional fuzzing via fuzzbuzz (`.fuzzbuzz.yml`).
Having this merged makes is easier for people to fuzz Bitcoin Core (via their forked repos) using their fuzzbuzz account and then hopefully submit coverage increasing corpus additions upstreams to to https://github.com/bitcoin-core/qa-assets.
Historically it has been mostly been me and MarcoFalke who submit test cases to `qa-assets`, but with this change hopefully more people will join the hunt for coverage increasing fuzzing inputs :)
Top commit has no ACKs.
Tree-SHA512: c7d8e354996c673da36cc9add260383c82a5325bfaa7ce6141ad6cd6b7d6adf3a6c900ea2db17fb70147b3625fa7f6a1ff8ba813aeaa299f316d8f6cabb3a65c
It is no longer necessary to wait for IBD to be complete before setting
a HD seed. This check was originally to ensure that restoring an old
seed on an out of sync node would scan the entire blockchain and thus
not miss transactions that involved keys that were not in the keypool.
This was necessary as once the seed was changed, no further keys would
be derived from the old seed(s).
As we are now topping up inactive seeds as we find those keys to be
used, this check is no longer necessary. During IBD, each time we
find a used key belonging to an inactive hd seed, we will still generate
more keys from that inactive seed.
0000ea3265 test: Add test for GetRandMillis and GetRandMicros (MarcoFalke)
fa0e5b89cf Add templated GetRandomDuration<> (MarcoFalke)
Pull request description:
A naive implementation of this template is dangerous, because the call site might accidentally omit the template parameter:
```cpp
template <typename D>
D GetRandDur(const D& duration_max)
{
return D{GetRand(duration_max.count())};
}
BOOST_AUTO_TEST_CASE(util_time_GetRandTime)
{
std::chrono::seconds rand_hour = GetRandDur(std::chrono::hours{1});
// Want seconds to be in range [0..1hour), but always get zero :((((
BOOST_CHECK_EQUAL(rand_hour.count(), 0);
}
```
Luckily `std::common_type` is already specialised in the standard lib for `std::chrono::duration` (https://en.cppreference.com/w/cpp/chrono/duration/common_type). And its effect seem to be that the call site must always specify the template argument explicitly.
So instead of implementing the function for each duration type by hand, replace it with a templated version that is safe to use.
ACKs for top commit:
laanwj:
Code review ACK 0000ea3265
promag:
Code review ACK 0000ea3265.
jonatack:
ACK 0000ea3 thanks for the improved documentation. Code review, built, ran `src/test/test_bitcoin -t random_tests -l test_suite` for the new unit tests, `git diff fa05a4c 0000ea3` since previous review:
hebasto:
ACK 0000ea3265 with non-blocking [nit](https://github.com/bitcoin/bitcoin/pull/18781#discussion_r424924671).
Tree-SHA512: e89d46e31452be6ea14269ecbbb2cdd9ae83b4412cd14dff7d1084283092722a2f847cb501e8054394e4a3eff852f9c87f6d694fd008b3f7e8458cb5a3068af7
050e2ee6f2 test: Remove const to work around compiler error on xenial (Wladimir J. van der Laan)
Pull request description:
Fix the following error in travis:
test/validationinterface_tests.cpp:26:36: error: default initialization of an object of const type 'const BlockValidationState' without a user-provided default constructor
const BlockValidationState state_dummy;
ACKs for top commit:
MarcoFalke:
Tested ACK 050e2ee6f2 on xenial with clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)
fanquake:
ACK 050e2ee6f2 - I see why we didn't hit this on master. We are installing the `clang-8` packages for the tsan job. However on the 0.20 branch we are still just installing `clang`, which is 3.8.
Tree-SHA512: 8a1d57289dbe9895ab79f81ca87b4fd723426b8d72f3a34bec9553226fba69f6dc19551c1f1d52db6c4b2652164a02ddc60f3187c3e2ad7bcacb0aaca7fa690a
746736639e [net processing] Only send a getheaders for one block in an INV (John Newbery)
Pull request description:
Headers-first is the primary method of announcement on the network. If a node fell back sending blocks by inv, it's probably for a re-org. The final block hash provided should be the highest, so send a getheaders and then fetch the blocks we need to catch up.
Sending many GETHEADERS messages to the peer would cause them to send a large number of potentially large HEADERS messages with redundant data, which is a waste of bandwidth.
ACKs for top commit:
sipa:
utACK 746736639e
mzumsande:
utACK 746736639e as per ajtowns' reasoning.
naumenkogs:
utACK 7467366
ajtowns:
ACK 746736639e
jonatack:
ACK 746736639e
Tree-SHA512: 59e243b80d3f0873709dfacb2e4ffba34689aad7de31ec7f69a64e0e3a0756235a0150e4082ff5de823949ba4411ee1aed2344b4749b62e0eb1ea906e41f5ea9
eacedfb023 scripts: add additional type annotations to security-check.py (fanquake)
83d063e954 scripts: add run_command to security-check.py (fanquake)
13f606b4f9 scripts: remove NONFATAL from security-check.py (fanquake)
061acf62a1 scripts: no-longer check for 32 bit windows in security-check.py (fanquake)
Pull request description:
* Remove 32-bit Windows checks.
* Remove NONFATAL checking. Added in #8249, however unused since #13764.
* Add `run_command` to de-duplicate all of the subprocess calls. Mentioned in #18713.
* Add additional type annotations.
* Print stderr when there is an issue running a command.
ACKs for top commit:
laanwj:
ACK eacedfb023
Tree-SHA512: 69a7ccfdf346ee202b3e8f940634c5daed1d2b5a5d15ac9800252866ba3284ec66e391a66a0b341f5a4e5e8482fe1b614d4671e8e766112ff059405081184a85
fa1f840596 rpcwallet: Replace pwallet-> with wallet. (MarcoFalke)
fa182a8794 rpcwallet: Replace boost::optional<T>::emplace with simple assignment of T{} (MarcoFalke)
Pull request description:
Closes#18943
ACKs for top commit:
laanwj:
ACK fa1f840596
ryanofsky:
Code review ACK fa1f840596 and thanks for using a standalone commit for the fix
promag:
Code review ACK fa1f840596.
hebasto:
ACK fa1f840596, tested on Linux Mint 19.3.
Tree-SHA512: 0838485d1f93f737ce5bf12740669dcafeebb78dbc3fa15dbcc511edce64bf024f60f0497a04149a1e799d893d57b0c9ffe442020c1b9cfc3c69db731f50e712
Fix the following error in travis:
test/validationinterface_tests.cpp:26:36: error: default initialization of an object of const type 'const BlockValidationState' without a user-provided default constructor
const BlockValidationState state_dummy;
7777f2a4bb miner: Avoid stack-use-after-return in validationinterface (MarcoFalke)
fa5ceb25fc test: Remove UninterruptibleSleep from test and replace it by SyncWithValidationInterfaceQueue (MarcoFalke)
fa770ce7fe validationinterface: Rework documentation, Rename pwalletIn to callbacks (MarcoFalke)
fab6d060ce test: Add unregister_validation_interface_race test (MarcoFalke)
Pull request description:
When a validationinterface has itself unregistered in one thread, but is about to get executed in another thread [1], there is a race:
* The validationinterface destructing itself
* The validationinterface getting dereferenced for execution
[1] 64139803f1/src/validationinterface.cpp (L82-L83)
This happens in the miner. More generally it happens everywhere where at least one thread is generating notifications and another one is unregistering a validationinterface.
This issue has been fixed in commit ab31b9d6fe, but the fix has not been applied to the miner.
Example where this happened in practice: https://travis-ci.org/github/bitcoin/bitcoin/jobs/675322230#L4414
ACKs for top commit:
promag:
Code review ACK 7777f2a4bb.
laanwj:
Code review ACK 7777f2a4bb
Tree-SHA512: 8087119243c71ba18a823a63515f3730d127162625d8729024278b447af29e2ff206f4840ee3d90bf84f93a2c5ab73b76c7e7044c83aa93b5b51047a166ec3d3
Instruct the linker to set the major & minor subsystem versions in the PE
header to 6 & 1 (NT 6.1 which corresponds to Windows 7). Similar to
macOS, the binary will now refuse to run on unsupported versions of
Windows.
This commit is (intentionally) adding a broken test. The test is broken
because it registering a subscriber object that can go out of scope
while events are still being sent.
To run the broken test and reproduce the bug:
- Remove comment /** and */
- ./configure --with-sanitizers=address
- export ASAN_OPTIONS=detect_leaks=0
- make
- while ./src/test/test_bitcoin -t validationinterface_tests/unregister_validation_interface_race --catch_system_errors=no ; do true; done
a30b0a24e9 build: enable -Werror=gnu (Vasil Dimov)
Pull request description:
Stop the build if a warning is emitted due to `-Wgnu` and
`--enable-werror` has been used. As usual - this would help notice such
a warning that is about to be introduced in new code.
This is a followup to
https://github.com/bitcoin/bitcoin/pull/18088 build: ensure we aren't using GNU extensions
ACKs for top commit:
practicalswift:
ACK a30b0a24e9
Empact:
ACK a30b0a24e9
Tree-SHA512: f81b71cf3ee4db88b6f664c571075e0d30800a604f067f44273f256695a1dea533779db2ac859dd0a4cd8b66289c3e45f4aff1cfadfa160a1c354237167b05e2
faa26d3744 test: Remove RPCOverloadWrapper boilerplate (MarcoFalke)
Pull request description:
There are too many wrappers in test_node already, so at least the code that implements the wrappers should be as minimal as possible.
ACKs for top commit:
laanwj:
code review ACK faa26d3744
Tree-SHA512: 94e593907de22187524e2445afb3101e40b3b599d4b4015aa8c6ca902d7586ff9daf520828759029d199a3af79e61b96b490a822a5a193ac7bf946beacb11a24
df6bde031b test: remove glibc fdelt sanity check (fanquake)
8bf1540cc2 build: remove fdelt_chk backwards compatibility code (fanquake)
Pull request description:
ae30d40e50
The return type of [`fdelt_chk`](https://sourceware.org/git/?p=glibc.git;a=blob;f=debug/fdelt_chk.c;h=f62ce7349707cb68f55831c1c591fd7387a90258;hb=HEAD) changed from `unsigned long int` to `long int` in glibc 2.16. See [this commit](https://sourceware.org/git/?p=glibc.git;a=commit;h=ceb9e56b3d1f8c1922e0526c2e841373843460e2). Now that we require [glibc >=2.17](https://github.com/bitcoin/bitcoin/pull/17538) we can remove our back-compat code.
ab7bce584a
While looking at the above changes, I noticed that our glibc fdelt sanity check doesn't seem to be checking anything. `fdelt_warn()` also isn't something we'd want to actually "trigger" at runtime, as doing so would cause `bitcoind` to abort.
The comments:
> // trigger: Call FD_SET to trigger __fdelt_chk. FORTIFY_SOURCE must be defined
> // as >0 and optimizations must be set to at least -O2.
suggest calling FD_SET to check the invocation of `fdelt_chk` (this is [aliased with fdelt_warn in glibc](https://sourceware.org/git/?p=glibc.git;a=blob;f=debug/fdelt_chk.c;h=f62ce7349707cb68f55831c1c591fd7387a90258;hb=HEAD)). However just calling `FD_SET()` will not necessarily cause the compiler to insert a call to `fd_warn()`.
Whether or not GCC (recent Clang should work, but may use different heuristics) inserts a call to `fdelt_warn()` depends on if the compiler can determine if the value passed in is a compile time constant (using [`__builtin_constant_p`](https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html)) and whether the value is < 0 or >= `FD_SETSIZE`. The glibc implementation is [here](https://sourceware.org/git/?p=glibc.git;a=blob;f=misc/bits/select2.h;h=7e17430ed94dd1679af10afa3d74795f9c97c0e8;hb=HEAD). This means our check should never cause a call to be inserted.
Compiling master without `--glibc-back-compat` (if you do pass `--glibc-back-compat` the outcome is still the same; however the abort will only happen with >=`FD_SETSIZE` as that is what our [fdelt_warn()](https://github.com/bitcoin/bitcoin/blob/master/src/compat/glibc_compat.cpp#L24) checks for), there are no calls to `fdelt_warn()` inserted by the compiler:
```bash
objdump -dC bitcoind | grep sanity_fdelt
...
0000000000399d20 <sanity_test_fdelt()>:
399d20: 48 81 ec 98 00 00 00 sub $0x98,%rsp
399d27: b9 10 00 00 00 mov $0x10,%ecx
399d2c: 64 48 8b 04 25 28 00 mov %fs:0x28,%rax
399d33: 00 00
399d35: 48 89 84 24 88 00 00 mov %rax,0x88(%rsp)
399d3c: 00
399d3d: 31 c0 xor %eax,%eax
399d3f: 48 89 e7 mov %rsp,%rdi
399d42: fc cld
399d43: f3 48 ab rep stos %rax,%es:(%rdi)
399d46: 48 8b 84 24 88 00 00 mov 0x88(%rsp),%rax
399d4d: 00
399d4e: 64 48 33 04 25 28 00 xor %fs:0x28,%rax
399d55: 00 00
399d57: 75 0d jne 399d66 <sanity_test_fdelt()+0x46>
399d59: b8 01 00 00 00 mov $0x1,%eax
399d5e: 48 81 c4 98 00 00 00 add $0x98,%rsp
399d65: c3 retq
399d66: e8 85 df c8 ff callq 27cf0 <__stack_chk_fail@plt>
399d6b: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
```
If you modify the sanity test to pass `-1` or `FD_SETSIZE` to `FD_SET`, you'll see calls to `fdelt_warn` inserted, and the runtime behaviour is an abort as expected.
```diff
diff --git a/src/compat/glibc_sanity_fdelt.cpp b/src/compat/glibc_sanity_fdelt.cpp
index 87140d0c7..16974bfa0 100644
--- a/src/compat/glibc_sanity_fdelt.cpp
+++ b/src/compat/glibc_sanity_fdelt.cpp
@@ -20,7 +20,7 @@ bool sanity_test_fdelt()
{
fd_set fds;
FD_ZERO(&fds);
- FD_SET(0, &fds);
+ FD_SET(FD_SETSIZE, &fds);
return FD_ISSET(0, &fds);
}
#endif
```
```bash
0000000000399d20 <sanity_test_fdelt()>:
399d20: 48 81 ec 98 00 00 00 sub $0x98,%rsp
399d27: b9 10 00 00 00 mov $0x10,%ecx
399d2c: 64 48 8b 04 25 28 00 mov %fs:0x28,%rax
399d33: 00 00
399d35: 48 89 84 24 88 00 00 mov %rax,0x88(%rsp)
399d3c: 00
399d3d: 31 c0 xor %eax,%eax
399d3f: 48 89 e7 mov %rsp,%rdi
399d42: fc cld
399d43: f3 48 ab rep stos %rax,%es:(%rdi)
399d46: 48 c7 c7 ff ff ff ff mov $0xffffffffffffffff,%rdi
399d4d: e8 3e ff ff ff callq 399c90 <__fdelt_warn>
399d52: 0f b6 04 24 movzbl (%rsp),%eax
399d56: 83 e0 01 and $0x1,%eax
399d59: 48 8b 94 24 88 00 00 mov 0x88(%rsp),%rdx
399d60: 00
399d61: 64 48 33 14 25 28 00 xor %fs:0x28,%rdx
399d68: 00 00
399d6a: 75 08 jne 399d74 <sanity_test_fdelt()+0x54>
399d6c: 48 81 c4 98 00 00 00 add $0x98,%rsp
399d73: c3 retq
399d74: e8 77 df c8 ff callq 27cf0 <__stack_chk_fail@plt>
399d79: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
```
```bash
src/bitcoind
*** buffer overflow detected ***: src/bitcoind terminated
Aborted
```
I think the test should should be removed and replaced (if possible) with additional checks in security-check.py. I was thinking about adding a version of [this script](https://github.com/fanquake/core-review/blob/master/fortify.py) as part of the output, but that needs more thought. I'll address this in a follow up.
ACKs for top commit:
laanwj:
ACK df6bde031b
Tree-SHA512: d8b3af4f4eb2d6c767ca6e72ece51d0ab9042e1bbdfcbbdb7ad713414df21489ba3217662b531b8bfdac0265d2ce5431abfae6e861b6187d182ff26c6e59b32d
0c63f80854 build: Suppress -Wdeprecated-copy warnings (Hennadii Stepanov)
Pull request description:
Tomorrow, on Apr 23 the Ubuntu 20.04 release is expected. It packaged with Qt 5.12 LTS that has a nasty peculiarity to cause modern compilers, including Clang 10.0 and GCC 9.3, to emit spammy `-Wdeprecated-copy` warnings (#15822, #18419).
This PR suppress such warnings _temporarily_, until the [upstream is fixed](https://codereview.qt-project.org/c/qt/qtbase/+/272258).
Here are some affected systems (with system packages):
- Ubuntu 20.04 LTS + Qt 5.12.8 LTS + { Clang 10.0 | GCC 9.3 }
- Fedora 32 + Qt 5.13.2 + Clang 10.0
Reference: [QTBUG-75210](https://bugreports.qt.io/browse/QTBUG-75210)
Also see **fanquake**'s [comment](https://github.com/bitcoin/bitcoin/pull/18738#issuecomment-622956100).
ACKs for top commit:
MarcoFalke:
ACK 0c63f80854 seems fine to disable this warning for the 0.21.0 release temporarily and then enable it for 0.22.0, when boost is removed.
fanquake:
ACK 0c63f80854 - I think it's ok to suppress these for now, given that `-Wdeprecated-copy` is enabled (via `-Wextra`) in GCC 9 and Clang 10. The Qt output is pretty noisy, and there's a few warnings from Boost as well.
Tree-SHA512: 7064a3272bc9eae00b73a16c421ac58be148f374cbef87320e8f092f52761f6e98166eff60346b70867f8a69a9698a79455dc16b42d92f8fbe7c56519571ac08
