9d4eb9a Do diskspace check before import thread is started (Pieter Wuille)
aa59f2e Add extra message to avoid a long 'Loading banlist' (Pieter Wuille)
0fd2a33 Use a signal to continue init after genesis activation (Pieter Wuille)
eebc232 test: Add more test vectors for siphash (Wladimir J. van der Laan)
8884830 Use C++11 thread-safe static initializers (Pieter Wuille)
c31b24f Use 64-bit SipHash of netgroups in eviction (Pieter Wuille)
9bf156b Support SipHash with arbitrary byte writes (Pieter Wuille)
053930f Avoid recalculating vchKeyedNetGroup in eviction logic. (Patrick Strateman)
6182d10 Do not increment nAttempts by more than one for every Good connection. (Gregory Maxwell)
c769c4a Avoid counting failed connect attempts when probably offline. (Gregory Maxwell)
b559914 Move bloom and feerate filtering to just prior to tx sending. (Gregory Maxwell)
4578215 Return mempool queries in dependency order (Pieter Wuille)
ed70683 Handle mempool requests in send loop, subject to trickle (Pieter Wuille)
dc13dcd Split up and optimize transaction and block inv queues (Pieter Wuille)
f2d3ba7 Eliminate TX trickle bypass, sort TX invs for privacy and priority. (Gregory Maxwell)
* Initial devnet
* Move genesis block adding into its own method
* Introduce -allowprivatenet to lift limitation on RFC1918 addresses
Normally, RFC1918 (192.168.x.x/10.x.x.x/...) addresses are not allowed
to be relayed. Also, masternodes won't start when the address is considered
invalid.
This is needed to test local devnet or regtest based networks.
* Lift the requirement of minimum MN age for regtest/devnet
* Implement named devnets
This allows the creation of multiple independent devnets. Each one is
identified by a name which is hardened into a "devnet genesis" block,
which is automatically positioned at height 1. Validation rules will
ensure that a node from devnet=test1 never be able to accept blocks
from devnet=test2. This is done by checking the expected devnet genesis
block.
The genesis block of the devnet is the same as the one from regtest. This
starts the devnet with a very low difficulty, allowing us to fill up
needed balances for masternodes very fast.
Also, the devnet name is put into the sub-version of the VERSION message.
If a node connects to the wrong network, it will immediately be disconnected.
* Allow to select multiple addresses from the same group in devnet/regtest
The selection code normally only allows to select addresses from the same
group (e.g. 192.168.x.x) once. This results in connecting to only a single
node in devnet/regtest.
* Show the devnet name in the title bar and on the loading screen
* Add AllowMultipleAddressesFromGroup to chainparams and use it in net.cpp
* Remove unused/unneeded scripts from devnet geneses creation
1. OP_RETURN not needed in input script of devnet genesis
2. genesisOutputScript was unused
* Fix copy/paste error in -allowprivatenet description
* Improve -devnet parameter error handling
- Only allow one of -devnet, -regtest or -testnet
- Only allow -devnet=name to be specified once
* Use different datadir for each devnet
* Fix `devnet-devnet` issue
* Fix devnet splashscreen (should use testnet img)
* Avoid passing devNetName around (most of the time)
* Remove nMaxTipAge from CDevNetParams
Not present anymore after rebase on develop
027fdb8 When/if the copyright line does not mention Bitcoin Core developers, add a second line to copyrights in -version, About dialog, and splash screen (Luke Dashjr)
cc2095e Rewrite FormatParagraph to handle newlines within input strings correctly (Luke Dashjr)
cddffaf Bugfix: Include COPYRIGHT_HOLDERS_SUBSTITUTION in Makefile substitutions so it gets passed to extract-strings correctly (Luke Dashjr)
29598e4 Move PACKAGE_URL to configure.ac (Luke Dashjr)
78ec83d splashscreen: Resize text to fit exactly (Luke Dashjr)
3cae140 Bugfix: Actually use _COPYRIGHT_HOLDERS_SUBSTITUTION everywhere (Luke Dashjr)
4d5a3df Bugfix: gitian-descriptors: Add missing python-setuptools requirement for OS X (biplist module) (Luke Dashjr)
e4ab5e5 Bugfix: Correct copyright year in Mac DMG background image (Luke Dashjr)
917b1d0 Set copyright holders displayed in notices separately from the package name (Luke Dashjr)
c39a6ff Travis & gitian-osx: Use depends for ds_store and mac_alias modules (Luke Dashjr)
902ccde depends: Add mac_alias to depends (Luke Dashjr)
82a2d98 depends: Add ds_store to depends (Cory Fields)
de619a3 depends: Pass PYTHONPATH along to configure (Cory Fields)
e611b6e macdeploy: Use rsvg-convert rather than cairosvg (Luke Dashjr)
63bcdc5 More complicated package name substitution for Mac deployment (Luke Dashjr)
1a6c67c Parameterise 2009 in translatable copyright strings (Luke Dashjr)
d5f4683 Unify package name to as few places as possible without major changes (Luke Dashjr)
* Allow compilation with `--disable-wallet`
* fix remaining references
* Drop wallet references/include in CActiveMasternode and fix other files affected by this change
* Wrap privatesend-client.h include with ifdef/endif and fix other files affected by this change
* Re-enable Travis build with no wallet
reverts 267e57877b
* Merge #8996: Network activity toggle
19f46f1 Qt: New network_disabled icon (Luke Dashjr)
54cf997 RPC/Net: Use boolean consistently for networkactive, and remove from getinfo (Luke Dashjr)
b2b33d9 Overhaul network activity toggle (Jonas Schnelli)
32efa79 Qt: Add GUI feedback and control of network activity state. (Jon Lund Steffensen)
e38993b RPC: Add "togglenetwork" method to toggle network activity temporarily (Jon Lund Steffensen)
7c9a98a Allow network activity to be temporarily suspended. (Jon Lund Steffensen)
* Revert on-click behavior of network status icon to showing peers list
Stay with the way Dash handled clicking on the status icon
* Add theme support for network disabled icon
* Merge #8874: Multiple Selection for peer and ban tables
1077577 Fix auto-deselection of peers (Andrew Chow)
addfdeb Multiple Selection for peer and ban tables (Andrew Chow)
* Merge #9190: qt: Plug many memory leaks
ed998ea qt: Avoid OpenSSL certstore-related memory leak (Wladimir J. van der Laan)
5204598 qt: Avoid shutdownwindow-related memory leak (Wladimir J. van der Laan)
e4f126a qt: Avoid splash-screen related memory leak (Wladimir J. van der Laan)
693384e qt: Prevent thread/memory leak on exiting RPCConsole (Wladimir J. van der Laan)
47db075 qt: Plug many memory leaks (Wladimir J. van der Laan)
* Merge #9218: qt: Show progress overlay when clicking spinner icon
042f9fa qt: Show progress overlay when clicking spinner icon (Wladimir J. van der Laan)
827d9a3 qt: Replace NetworkToggleStatusBarControl with generic ClickableLabel (Wladimir J. van der Laan)
* Merge #9266: Bugfix: Qt/RPCConsole: Put column enum in the right places
df17fe0 Bugfix: Qt/RPCConsole: Put column enum in the right places (Luke Dashjr)
* Merge #9255: qt: layoutAboutToChange signal is called layoutAboutToBeChanged
f36349e qt: Remove on_toggleNetworkActiveButton_clicked from RPCConsole (Wladimir J. van der Laan)
297cc20 qt: layoutAboutToChange signal is called layoutAboutToBeChanged (Wladimir J. van der Laan)
* Use UniValue until bitcoin PR #8788 is backported
Network active toggle was already based on
"[RPC] Give RPC commands more information about the RPC request"
We need to use the old UniValue style until that one is backported
* Merge #8906: [qt] sync-overlay: Don't show progress twice
fafeec3 [qt] sync-overlay: Don't show progress twice (MarcoFalke)
* Merge #8985: Use pindexBestHeader instead of setBlockIndexCandidates for NotifyHeaderTip()
3154d6e [Qt] use NotifyHeaderTip's height and date for the progress update (Jonas Schnelli)
0a261b6 Use pindexBestHeader instead of setBlockIndexCandidates for NotifyHeaderTip() (Jonas Schnelli)
* Merge #9280: [Qt] Show ModalOverlay by pressing the progress bar, allow hiding
89a3723 [Qt] Show ModalOverlay by pressing the progress bar, disabled show() in sync mode (Jonas Schnelli)
* Merge #9461: [Qt] Improve progress display during headers-sync and peer-finding
40ec7c7 [Qt] Improve progress display during headers-sync and peer-finding (Jonas Schnelli)
* Merge #9588: qt: Use nPowTargetSpacing constant
fa4d478 qt: Use nPowTargetSpacing constant (MarcoFalke)
* Hide modal overlay forever when syncing has catched up
Don't allow to open it again by clicking on the progress bar and spinner
icon. Currently the overlay does not show meaningful information about
masternode sync and it gives the impression of being stuck after the block
chain sync is done.
* Don't include chainparams.h in sendcoinsdialog.cpp
This was just a remainder of a backported PR which meant to change some
calculation in this file which does not apply to Dash.
* Also check for fNetworkActive in ConnectNode
* Merge #9528: [qt] Rename formateNiceTimeOffset(qint64) to formatNiceTimeOffset(qint64)
988d300 [qt] Rename formateNiceTimeOffset(qint64) to formatNiceTimeOffset(qint64) (practicalswift)
* Merge #11237: qt: Fixing division by zero in time remaining
c8d38abd6 Refactor tipUpdate as per style guide (MeshCollider)
3b69a08c5 Fix division by zero in time remaining (MeshCollider)
Pull request description:
Fixes https://github.com/bitcoin/bitcoin/issues/10291, https://github.com/bitcoin/bitcoin/issues/11265
progressDelta may be 0 (or even negative according to 11265), this checks for that and prints unknown if it is, because we cannot calculate an estimate for the time remaining (would be infinite or negative).
Tree-SHA512: bc5708e5ed6e4670d008219558c5fbb25709bd99a32c98ec39bb74f94a0b7fa058f3d03389ccdd39e6723e6b5b48e34b13ceee7c051c2db631e51d8ec3e1d68c
* Merge #7506: Use CCoinControl selection in CWallet::FundTransaction
d6cc6a1 Use CCoinControl selection in CWallet::FundTransaction (João Barbosa)
* Merge #7732: [Qt] Debug window: replace "Build date" with "Datadir"
fc737d1 [Qt] remove unused formatBuildDate method (Jonas Schnelli)
4856f1d [Qt] Debug window: replace "Build date" with "Datadir" (Jonas Schnelli)
* Merge #7707: [RPC][QT] UI support for abandoned transactions
8efed3b [Qt] Support for abandoned/abandoning transactions (Jonas Schnelli)
* Merge #7688: List solvability in listunspent output and improve help
c3932b3 List solvability in listunspent output and improve help (Pieter Wuille)
* Merge #8006: Qt: Add option to disable the system tray icon
8b0e497 Qt: Add option to hide the system tray icon (Tyler Hardin)
* Merge #8073: qt: askpassphrasedialog: Clear pass fields on accept
02ce2a3 qt: askpassphrasedialog: Clear pass fields on accept (Pavel Vasin)
* Merge #8231: [Qt] fix a bug where the SplashScreen will not be hidden during startup
b3e1348 [Qt] fix a bug where the SplashScreen will not be hidden during startup (Jonas Schnelli)
* Merge #8257: Do not ask a UI question from bitcoind
1acf1db Do not ask a UI question from bitcoind (Pieter Wuille)
* Merge #8463: [qt] Remove Priority from coincontrol dialog
fa8dd78 [qt] Remove Priority from coincontrol dialog (MarcoFalke)
* Merge #8678: [Qt][CoinControl] fix UI bug that could result in paying unexpected fee
0480293 [Qt][CoinControl] fix UI bug that could result in paying unexpected fee (Jonas Schnelli)
* Merge #8672: Qt: Show transaction size in transaction details window
c015634 qt: Adding transaction size to transaction details window (Hampus Sjöberg)
\-- merge fix for s/size/total size/
fdf82fb Adding method GetTotalSize() to CTransaction (Hampus Sjöberg)
* Merge #8371: [Qt] Add out-of-sync modal info layer
08827df [Qt] modalinfolayer: removed unused comments, renamed signal, code style overhaul (Jonas Schnelli)
d8b062e [Qt] only update "amount of blocks left" when the header chain is in-sync (Jonas Schnelli)
e3245b4 [Qt] add out-of-sync modal info layer (Jonas Schnelli)
e47052f [Qt] ClientModel add method to get the height of the header chain (Jonas Schnelli)
a001f18 [Qt] Always pass the numBlocksChanged signal for headers tip changed (Jonas Schnelli)
bd44a04 [Qt] make Out-Of-Sync warning icon clickable (Jonas Schnelli)
0904c3c [Refactor] refactor function that forms human readable text out of a timeoffset (Jonas Schnelli)
* Merge #8805: Trivial: Grammar and capitalization
c9ce17b Trivial: Grammar and capitalization (Derek Miller)
* Merge #8885: gui: fix ban from qt console
cb78c60 gui: fix ban from qt console (Cory Fields)
* Merge #8821: [qt] sync-overlay: Don't block during reindex
fa85e86 [qt] sync-overlay: Don't show estimated number of headers left (MarcoFalke)
faa4de2 [qt] sync-overlay: Don't block during reindex (MarcoFalke)
* Support themes for new transaction_abandoned icon
* Fix constructor call to COutput
* Merge #7842: RPC: do not print minping time in getpeerinfo when no ping received yet
62a6486 RPC: do not print ping info in getpeerinfo when no ping received yet, fix help (Pavel Janík)
* Merge #8918: Qt: Add "Copy URI" to payment request context menu
21f5a63 Qt: Add "Copy URI" to payment request context menu (Luke Dashjr)
* Merge #8925: qt: Display minimum ping in debug window.
1724a40 Display minimum ping in debug window. (R E Broadley)
* Merge #8972: [Qt] make warnings label selectable (jonasschnelli)
ef0c9ee [Qt] make warnings label selectable (Jonas Schnelli)
* Make background of warning icon transparent in modaloverlay
* Merge #9088: Reduce ambiguity of warning message
77cbbd9 Make warning message about wallet balance possibly being incorrect less ambiguous. (R E Broadley)
* Replace Bitcoin with Dash in modal overlay
* Remove clicked signals from labelWalletStatus and labelTransactionsStatus
As both are really just labels, clicking on those is not possible.
This is different in Bitcoin, where these labels are actually buttons.
* Pull out modaloverlay show/hide into it's own if/else block and switch to time based check
Also don't use masternodeSync.IsBlockchainSynced() for now as it won't
report the blockchain being synced before the first block (or other MN
data?) arrives. This would otherwise give the impression that sync is
being stuck.
* Merge pull request #7154a3c3ddb [Qt] add InMempool() info to transaction details (Jonas Schnelli)
* Merge pull request #7218fa5769e [qt] Fix misleading translation (MarcoFalke)
fa8c8d7 torcontrol debug: Change to a blanket message that covers both cases (MarcoFalke)
* Merge pull request #72556fd0a07 Remove hardcoded fee from CoinControl ToolTip (fanquake)
5fdf32d Replace some instances of formatWithUnit with formatHtmlWithUnit (fanquake)
* Merge pull request #7263a5a0831 Double semicolon cleanup. (21E14)
* Merge pull request #7334fa989fb [qt] coincontrol workaround is still needed in qt5.4 (fixed in qt5.5) (MarcoFalke)
* Merge pull request #73299d263bd Typo fixes in comments (Chris Wheeler)
* Merge #7396: [Qt] Add option to increase/decrease font size in the console window
43abb02 [Qt] Add a new chevron/arrow icon for the console prompt line (Jonas Schnelli)
56c9e66 [Qt] keep scroll position in GUI console after changing font size (Jonas Schnelli)
3a3a927 [Qt] Add option to increase/decrease font size in the console window (Jonas Schnelli)
* Merge #7628: QT: Add 'copy full transaction details' option
b51ed40 QT: Add 'copy full transaction details' option (Eric Shaw)
* Merge #7668: Fix history deletion bug after font size change
21e45a0 Fix history deletion bug after font change (Andrew C)
* Copy/Move font size related icons into theme folders
* Use formatTxDate for date/time in TxPlainTextRole
* net: Split resolving out of CNetAddr
* net: Split resolving out of CService
* net: Split resolving out of CSubNet
* net: move CNetAddr/CService/CSubNet out of netbase
* net: narrow include scope after moving to netaddress
Net functionality is no longer needed for CAddress/CAddrman/etc. now that
CNetAddr/CService/CSubNet are dumb storage classes.
* net: Add direct tests for new CSubNet constructors
* net: Have LookupNumeric return a CService directly
Also fix up a few small issues:
- Lookup with "badip:port" now sets the port to 0
- Don't allow assert to have side-effects
* net: fixup nits
* net: require lookup functions to specify all arguments
To make it clear where DNS resolves are happening
* net: manually resolve dns seed sources
Note: Some seeds aren't actually returning an IP for their name entries, so
they're being added to addrman with a source of [::].
This commit shouldn't change that behavior, for better or worse.
* net: resolve outside of storage structures
Rather than allowing CNetAddr/CService/CSubNet to launch DNS queries, require
that addresses are already resolved.
This greatly simplifies async resolve logic, and makes it harder to
accidentally leak DNS queries.
* net: disable resolving from storage structures
CNetAddr/CService/CSubnet can no longer resolve DNS.
The use of mocktime in test logic means that comparisons between
GetTime() and GetTimeMicros()/1000000 are unreliable since the former
can use mocktime values while the latter always gets the system clock;
this changes the networking code's inactivity checks to consistently
use the system clock for inactivity comparisons.
Also remove some hacks from setmocktime() that are no longer needed,
now that we're using the system clock for nLastSend and nLastRecv.
* net: fix typo causing the wrong receive buffer size
Surprisingly this hasn't been causing me any issues while testing, probably
because it requires lots of large blocks to be flying around.
Send/Recv corks need tests!
* net: make vRecvMsg a list so that we can use splice()
* net: make GetReceiveFloodSize public
This will be needed so that the message processor can cork incoming messages
* net: only disconnect if fDisconnect has been set
These conditions are problematic to check without locking, and we shouldn't be
relying on the refcount to disconnect.
* net: wait until the node is destroyed to delete its recv buffer
when vRecvMsg becomes a private buffer, it won't make sense to allow other
threads to mess with it anymore.
* net: set message deserialization version when it's actually time to deserialize
We'll soon no longer have access to vRecvMsg, and this is more intuitive anyway.
* net: handle message accounting in ReceiveMsgBytes
This allows locking to be pushed down to only where it's needed
Also reuse the current time rather than checking multiple times.
* net: record bytes written before notifying the message processor
* net: Add a simple function for waking the message handler
This may be used publicly in the future
* net: remove useless comments
* net: remove redundant max sendbuffer size check
This is left-over from before there was proper accounting. Hitting 2x the
sendbuffer size should not be possible.
* net: rework the way that the messagehandler sleeps
In order to sleep accurately, the message handler needs to know if _any_ node
has more processing that it should do before the entire thread sleeps.
Rather than returning a value that represents whether ProcessMessages
encountered a message that should trigger a disconnnect, interpret the return
value as whether or not that node has more work to do.
Also, use a global fProcessWake value that can be set by other threads,
which takes precedence (for one cycle) over the messagehandler's decision.
Note that the previous behavior was to only process one message per loop
(except in the case of a bad checksum or invalid header). That was changed in
PR #3180.
The only change here in that regard is that the current node now falls to the
back of the processing queue for the bad checksum/invalid header cases.
* net: add a new message queue for the message processor
This separates the storage of messages from the net and queued messages for
processing, allowing the locks to be split.
* net: add a flag to indicate when a node's process queue is full
Messages are dumped very quickly from the socket handler to the processor, so
it's the depth of the processing queue that's interesting.
The socket handler checks the process queue's size during the brief message
hand-off and pauses if necessary, and the processor possibly unpauses each time
a message is popped off of its queue.
* net: add a flag to indicate when a node's send buffer is full
Similar to the recv flag, but this one indicates whether or not the net's send
buffer is full.
The socket handler checks the send queue when a new message is added and pauses
if necessary, and possibly unpauses after each message is drained from its buffer.
* net: remove cs_vRecvMsg
vRecvMsg is now only touched by the socket handler thread.
The accounting vars (nRecvBytes/nLastRecv/mapRecvBytesPerMsgCmd) are also
only used by the socket handler thread, with the exception of queries from
rpc/gui. These accesses are not threadsafe, but they never were. This needs to
be addressed separately.
Also, update comment describing data flow
* Dont deserialize nVersion into CNode, should fix#9212
* net: deserialize the entire version message locally
This avoids having some vars set if the version negotiation fails.
Also copy it all into CNode at the same site. nVersion and
fSuccessfullyConnected are set last, as they are the gates for the other vars.
Make them atomic for that reason.
* net: don't run callbacks on nodes that haven't completed the version handshake
Since ForEach* are can be used to send messages to all nodes, the caller may
end up sending a message before the version handshake is complete. To limit
this, filter out these nodes. While we're at it, may as well filter out
disconnected nodes as well.
Delete unused methods rather than updating them.
* net: Disallow sending messages until the version handshake is complete
This is a change in behavior, though it's much more sane now than before.
* net: log an error rather than asserting if send version is misused
Also cleaned up the comments and moved from the header to the .cpp so that
logging headers aren't needed from net.h
* Implement conditions for ForEachNode() and ForNode() methods of CConnman.
A change making ForEachNode() and ForNode() methods ignore nodes that
have not completed initial handshake have been backported from Bitcoin.
Unfortunately, some Dash-specific code needs to iterate over all nodes.
This change introduces additional condition argument to these methods.
This argument is a functional object that should return true for nodes
that should be taken into account, not ignored.
Two functional objects are provided in CConnman namespace:
* FullyConnectedOnly returns true for nodes that have handshake completed,
* AllNodes returns true for all nodes.
Overloads for ForEachNode() and ForNode() methods without condition argument
are left for compatibility with non-Dash-specific code.
They use FullyConnectedOnly functional object for condition.
Signed-off-by: Oleg Girko <ol@infoserver.lv>
* Iterate over all nodes in Dash-specific code using AllNodes condition.
Use AllNodes functional object as newly introduced condition argument for
ForEachNode() and ForNode() methods of CConnman to iterate over all nodes
where needed in Dash-specific code.
Signed-off-by: Oleg Girko <ol@infoserver.lv>
* net: a few small cleanups before replacing boost threads
- Drop the interruption point directly after the pnode allocation. This would
be leaky if hit.
- Rearrange thread creation so that the socket handler comes first
* net: add CThreadInterrupt and InterruptibleSleep
* net: make net interruptible
Also now that net threads are interruptible, switch them to use std
threads/binds/mutexes/condvars.
* net: make net processing interruptible
* net: remove thread_interrupted catch
This is now a std::thread, so there's no hope of catching a boost interruption
point.
* net: make proxy receives interruptible
* net: misc header cleanups
In the case of (for example) an already-running bitcoind, the shutdown sequence
begins before CConnman has been created, leading to a null-pointer dereference
when g_connman->Stop() is called.
Instead, Just let the CConnman dtor take care of stopping.
* serialization: teach serializers variadics
Also add a variadic CDataStream ctor for ease-of-use.
* connman is in charge of pushing messages
The changes here are dense and subtle, but hopefully all is more explicit
than before.
- CConnman is now in charge of sending data rather than the nodes themselves.
This is necessary because many decisions need to be made with all nodes in
mind, and a model that requires the nodes calling up to their manager quickly
turns to spaghetti.
- The per-node-serializer (ssSend) has been replaced with a (quasi-)const
send-version. Since the send version for serialization can only change once
per connection, we now explicitly tag messages with INIT_PROTO_VERSION if
they are sent before the handshake. With this done, there's no need to lock
for access to nSendVersion.
Also, a new stream is used for each message, so there's no need to lock
during the serialization process.
- This takes care of accounting for optimistic sends, so the
nOptimisticBytesWritten hack can be removed.
- -dropmessagestest and -fuzzmessagestest have not been preserved, as I suspect
they haven't been used in years.
* net: switch all callers to connman for pushing messages
Drop all of the old stuff.
* drop the optimistic write counter hack
This is now handled properly in realtime.
* net: remove now-unused ssSend and Fuzz
* net: construct CNodeStates in place
* net: handle version push in InitializeNode
* net: Add fRelayTxes flag
Add a fRelayTxes to keep track of the relay transaction flag
we send to other peers.
* rpc: Add `relaytxes` flag to `getnetworkinfo`
Re-work of PR #7841 by dragongem45.
Closes#7771.
* net: move CBanDB and CAddrDB out of net.h/cpp
This will eventually solve a circular dependency
* net: Create CConnman to encapsulate p2p connections
* net: Move socket binding into CConnman
* net: move OpenNetworkConnection into CConnman
* net: move ban and addrman functions into CConnman
* net: Add oneshot functions to CConnman
* net: move added node functions to CConnman
* net: Add most functions needed for vNodes to CConnman
* net: handle nodesignals in CConnman
* net: Pass CConnection to wallet rather than using the global
* net: Add rpc error for missing/disabled p2p functionality
* net: Pass CConnman around as needed
* gui: add NodeID to the peer table
* net: create generic functor accessors and move vNodes to CConnman
* net: move whitelist functions into CConnman
* net: move nLastNodeId to CConnman
* net: move nLocalHostNonce to CConnman
This behavior seems to have been quite racy and broken.
Move nLocalHostNonce into CNode, and check received nonces against all
non-fully-connected nodes. If there's a match, assume we've connected
to ourself.
* net: move messageHandlerCondition to CConnman
* net: move send/recv statistics to CConnman
* net: move SendBufferSize/ReceiveFloodSize to CConnman
* net: move nLocalServices/nRelevantServices to CConnman
These are in-turn passed to CNode at connection time. This allows us to offer
different services to different peers (or test the effects of doing so).
* net: move semOutbound and semMasternodeOutbound to CConnman
* net: SocketSendData returns written size
* net: move max/max-outbound to CConnman
* net: Pass best block known height into CConnman
CConnman then passes the current best height into CNode at creation time.
This way CConnman/CNode have no dependency on main for height, and the signals
only move in one direction.
This also helps to prevent identity leakage a tiny bit. Before this change, an
attacker could theoretically make 2 connections on different interfaces. They
would connect fully on one, and only establish the initial connection on the
other. Once they receive a new block, they would relay it to your first
connection, and immediately commence the version handshake on the second. Since
the new block height is reflected immediately, they could attempt to learn
whether the two connections were correlated.
This is, of course, incredibly unlikely to work due to the small timings
involved and receipt from other senders. But it doesn't hurt to lock-in
nBestHeight at the time of connection, rather than letting the remote choose
the time.
* net: pass CClientUIInterface into CConnman
* net: Drop StartNode/StopNode and use CConnman directly
* net: Introduce CConnection::Options to avoid passing so many params
* net: add nSendBufferMaxSize/nReceiveFloodSize to CConnection::Options
* net: move vNodesDisconnected into CConnman
* Made the ForEachNode* functions in src/net.cpp more pragmatic and self documenting
* Convert ForEachNode* functions to take a templated function argument rather than a std::function to eliminate std::function overhead
* net: move MAX_FEELER_CONNECTIONS into connman
Tests if addresses are online or offline by briefly connecting to them. These short lived connections are referred to as feeler connections. Feeler connections are designed to increase the number of fresh online addresses in tried by selecting and connecting to addresses in new. One feeler connection is attempted on average once every two minutes.
This change was suggested as Countermeasure 4 in
Eclipse Attacks on Bitcoin’s Peer-to-Peer Network, Ethan Heilman,
Alison Kendler, Aviv Zohar, Sharon Goldberg. ePrint Archive Report
2015/263. March 2015.
* Rework addnode behaviour
* Use CNode::addeName to track whether a connection to a name is already open
* A new connection to a previously-connected by-name addednode is only opened when
the previous one closes (even if the name starts resolving to something else)
* At most one connection is opened per addednode (even if the name resolves to multiple)
* Unify the code between ThreadOpenAddedNodeConnections and getaddednodeinfo
* Information about open connections is always returned, and the dns argument becomes a dummy
* An IP address and inbound/outbound is only reported for the (at most 1) open connection
* Prevent duplicate connections where one is by name and another by ip
* Randomize name lookup result in ConnectSocketByName
This reverts commit 1f828f45ec.
The commit being reverted changed FindNode(const CService& addr)
to make no difference between nodes with the same IP address,
but different ports, but only for regtest network.
As functional tests run several nodes on different ports or the same
IP address (127.0.0.1), this eventually started breaking functional tests.
The only use for regtest network I know is for functional tests,
so it's time to revert that commit.
* Add recently accepted blocks and txn to AttemptToEvictConnection.
This protects any not-already-protected peers who were the most
recent four to relay transactions and most recent four to send
blocks to us.
* Allow disconnecting a netgroup with only one member in eviction.
With the latest additions there are enough protective measures that
we can take the training wheels off.
