An error array was read at index 0 without checking its size, so a packet
carrying "e":[] dereferenced a null element pointer and crashed the process
on unauthenticated UDP input.
When a message had an error array but no "a", "r" or "u" map, the same object
was then walked through the map view of the msgpack union. A two-element array
appeared to hold two key/value pairs, reading past its allocation. A request
field that was not a map was never type-checked either.
Validate the error array size, restrict request parsing to "a", "r" and "u",
and require those to be maps. Add parser regressions for the empty error
array, the error-only message and the non-map request; the first one
segfaults without this change.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Key partial messages by source and transaction ID, buffer bounded fragments received before their header, and avoid charging reordered requests twice against rate limits. Cover source collisions, early fragments, empty data and large values.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Reject field-compressed responses with no selected fields before computing the value count, avoiding a division by zero on malformed network input. Add a parser regression test.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
gnutls_pubkey_export reports the size of the exported PEM including its
terminating null byte, and PublicKey::toString hands that size straight
back to the caller. The returned string therefore ends with a null byte
that is not part of the PEM text.
Certificate::toString does not have the problem because
gnutls_x509_crt_export excludes the terminator, so the two exports
disagree on what a PEM string is.
The stray byte travels: Value::toJson stores owner->toString() in the
"owner" field, so a value published through the proxy carries a null
byte inside a JSON string, which is valid JSON but a surprise for any
consumer that treats the field as text.
Resize to the reported size and drop the terminator when it is there.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
RevocationList::sign() always overwrote the CRL Number extension: random
on the first signature, incremented afterwards. This leaves no way for a
certificate authority replicated over several devices to keep numbers
unique, since every device branching from the same list mints the same
number for a different content.
Add an optional `number` parameter, used verbatim when non-zero, so
callers can partition the number space (RFC 5280 5.2.3 requires
monotonicity for a given CRL scope and issuer, not globally).
Also fix the default increment path: the extension holds a DER integer
with leading zeros stripped, so reading it straight into an uint64_t only
worked for numbers wide enough to occupy all 8 bytes. Signing a list
numbered 5 produced 0x0500000000000001 instead of 6. Read and write the
number as a big-endian byte string instead, which makes the `endian()`
helper unnecessary.
Add tests covering the default numbering, explicit numbers (including
values with leading zero bytes and the largest positive 8-byte integer),
pack/unpack round-trips, and a device-partitioned numbering scheme.
Cover starting a node whose persisted port (persist_path + "_port.txt")
is already bound by another node, as happens when an application is
restarted while the previous instance still holds the socket. The node
is expected to start on a fallback port instead of failing.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Cover Value::toJson() / Value(const Json::Value&) preservation of the
pushType field, and its absence from the JSON when empty. This is the
serialization path used by DhtProxyClient::put(), so mobile clients
behind a DHT proxy depend on it to propagate the push notification
type.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
The worker threads in a ThreadPool don't signal the pool's condition
variable when completing the last task in the queue. As a consequence,
ThreadPool::join() hangs if called while the task queue is non-empty.
Add testImportPermanentValueExpires to verify that values originally
stored as permanent (with time_point::max() expiration) properly expire
after being exported and re-imported, since the permanent flag is lost
during the import process.
Make Hash default constructor, hex constructor, data(), const
operator[] and fromString constexpr. Change fromString to be
non-throwing: it now uses a validity flag and fills the hash with zeros
on parse error instead of throwing. Add a constexpr toHexArray helper
that returns a std::array<char, N*2> for compile-time hex conversion.
Update tests to include <string_view>, use std::string_view, add
constexpr InfoHash usage and a static_assert for the hex array.
Adrien Beraud
Cyrille BéraudandCopilot
François-Simon Fauteux-Chapleau
Pavan Koushik Nellore
Adrien Béraud