Commit graph

18737 commits

Author SHA1 Message Date
Vasil Dimov
cff65c4a27
net: extend CNetAddr::SetSpecial() to support I2P
Recognize also I2P addresses in the form `base32hashofpublickey.b32.i2p`
from `CNetAddr::SetSpecial()`.

This makes `Lookup()` support them, which in turn makes it possible to
manually connect to an I2P node by using
`-proxy=i2p_socks5_proxy:port -addnode=i2p_address.b32.i2p:port`

Co-authored-by: Lucas Ontivero <lucasontivero@gmail.com>
2021-03-01 13:22:11 +01:00
Vasil Dimov
f6c267db3b
net: avoid unnecessary GetBindAddress() call
Our local (bind) address is already saved in `CNode::addrBind` and there
is no need to re-retrieve it again with `GetBindAddress()`.

Also, for I2P connections `CNode::addrBind` would contain our I2P
address, but `GetBindAddress()` would return something like
`127.0.0.1:RANDOM_PORT`.
2021-03-01 12:57:01 +01:00
Vasil Dimov
7c224fdac4
net: isolate the protocol-agnostic part of CConnman::AcceptConnection()
Isolate the second half of `CConnman::AcceptConnection()` into a new
separate method, which could be reused if we accept incoming connections
by other means than `accept()` (first half of
`CConnman::AcceptConnection()`).
2021-03-01 12:57:01 +01:00
Vasil Dimov
1f75a653dd
net: get the bind address earlier in CConnman::AcceptConnection()
Call `GetBindAddress()` earlier in `CConnman::AcceptConnection()`. That
is specific to the TCP protocol and makes the code below it reusable for
other protocols, if the caller provides `addr_bind`, retrieved by other
means.
2021-03-01 12:57:01 +01:00
Vasil Dimov
25605895af
net: check for invalid socket earlier in CConnman::AcceptConnection()
This check is related to an `accept()` failure. So do the check earlier,
closer to the `accept()` call.

This will allow to isolate the `accept()`-specific code at the beginning
of `CConnman::AcceptConnection()` and reuse the code that follows it.
2021-03-01 12:57:00 +01:00
Vasil Dimov
545bc5f81d
util: fix WriteBinaryFile() claiming success even if error occurred
`fclose()` is flushing any buffered data to disk, so if it fails then
that could mean that the data was not completely written to disk.

Thus, check if `fclose()` succeeds and only then claim success from
`WriteBinaryFile()`.
2021-03-01 12:57:00 +01:00
Vasil Dimov
8b6e4b3b23
util: fix ReadBinaryFile() returning partial contents
If an error occurs and `fread()` returns `0` (nothing was read) then the
code before this patch would have returned "success" with a partially
read contents of the file.
2021-03-01 12:57:00 +01:00
Vasil Dimov
4cba2fdafa
util: extract {Read,Write}BinaryFile() to its own files
Extract `ReadBinaryFile()` and `WriteBinaryFile()` from `torcontrol.cpp`
to its own `readwritefile.{h,cpp}` files, so that it can be reused from
other modules.
2021-03-01 12:56:56 +01:00
Wladimir J. van der Laan
362e901a17
Merge #18466: rpc: fix invalid parameter error codes for {sign,verify}message RPCs
a5cfb40e27 doc: release note for changed {sign,verify}message error codes (Sebastian Falbesoner)
9e399b9b2d test: check parameter validity in rpc_signmessage.py (Sebastian Falbesoner)
e62f0c71f1 rpc: fix {sign,message}verify RPC errors for invalid address/signature (Sebastian Falbesoner)

Pull request description:

  RPCs that accept address parameters usually return the intended error code `RPC_INVALID_ADDRESS_OR_KEY` (-5) if a passed address is invalid. The two exceptions to the rule are `signmessage` and `verifymessage`, which return `RPC_TYPE_ERROR` (-3) in this case instead. Oddly enough `verifymessage` returns `RPC_INVALID_ADDRESS_OR_KEY` when the _signature_ was malformed, where `RPC_TYPE_ERROR` would be more approriate.

  This PR fixes these inaccuracies and as well adds tests to `rpc_signmessage.py` that check the parameter validity and error codes for the related RPCs `signmessagewithprivkey`, `signmessage` and `verifymessage`.

  master branch:
  ```
  $ ./bitcoin-cli signmessage invalid_addr message
  error code: -3
  error message:
  Invalid address
  $ ./bitcoin-cli verifymessage invalid_addr dummy_sig message
  error code: -3
  error message:
  Invalid address
  $ ./bitcoin-cli verifymessage 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX invalid_sig message
  error code: -5
  error message:
  Malformed base64 encoding
  ```
  PR branch:
  ```
  $ ./bitcoin-cli signmessage invalid_addr message
  error code: -5
  error message:
  Invalid address
  $ ./bitcoin-cli verifymessage invalid_addr dummy_sig message
  error code: -5
  error message:
  Invalid address
  $ ./bitcoin-cli verifymessage 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX invalid_sig message
  error code: -3
  error message:
  Malformed base64 encoding
  ```

ACKs for top commit:
  laanwj:
    Code review ACK a5cfb40e27
  meshcollider:
    utACK a5cfb40e27

Tree-SHA512: bae0c4595a2603cea66090f6033785601837b45fd853052312b3a39d8520566c581994b68f693dd247c22586c638c3b7689c849085cce548cc36b9bf0e119d2d
2021-03-01 11:45:42 +01:00
Jon Atack
6242beeb06
Hoist repeated translated strings to RPCConsole struct members
and add missing braces to the touched conditionals.

Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
2021-02-28 19:14:35 +01:00
Jon Atack
0f035c12fb
RPCConsole::updateDetailWidget: convert strings to translated strings
and in the touched lines:

- replace 2 occurrences of `== ""` with `isEmpty()`

- replace an unneeded `+=` with `=`
2021-02-28 19:13:53 +01:00
fanquake
e52ce9f2b3
Merge #21286: build: Bump minimum Qt version to 5.9.5
faa06ecc9c build: Bump minimum Qt version to 5.9.5 (Hennadii Stepanov)

Pull request description:

  Close #20104.

ACKs for top commit:
  laanwj:
    Code review ACK faa06ecc9c
  jarolrod:
    ACK faa06ecc9c
  fanquake:
    ACK faa06ecc9c - this should be ok to do now.

Tree-SHA512: 7295472b5fd37ffb30f044e88c39d375a5a5187d3f2d44d4e73d0eb0c7fd923cf9949c2ddab6cddd8c5da7e375fff38112b6ea9779da4fecce6f024d05ba9c08
2021-02-28 13:14:04 +08:00
Sebastian Falbesoner
73e1f7d754 rpc: document optional fields for getchaintxstats result 2021-02-27 20:39:17 +01:00
Hennadii Stepanov
c524dc54bb
qt: Fix regression with initial sorting after pr205
QTableView widget must be explicitly sorted after the setModel call.
2021-02-27 17:47:33 +02:00
Anthony Towns
eeeafb324e net_processing: move AddToCompactExtraTransactions into PeerManagerImpl
Allows making vExtraTxnForCompact and vExtraTxnForCompactIt member vars
instead of globals.
2021-02-27 01:08:09 +10:00
Anthony Towns
f8c0688b94 scripted-diff: Update txorphanage naming convention
-BEGIN VERIFY SCRIPT-
sed -i 's/mapOrphanTransactionsByPrev/m_outpoint_to_orphan_it/g' src/txorphanage.h src/txorphanage.cpp
sed -i 's/mapOrphanTransactions/m_orphans/g' src/txorphanage.h src/txorphanage.cpp src/net_processing.cpp src/test/denialofservice_tests.cpp
sed -i 's/g_orphan_list/m_orphan_list/g' src/txorphanage.h src/txorphanage.cpp
sed -i 's/g_orphans_by_wtxid/m_wtxid_to_orphan_it/g' src/txorphanage.h src/txorphanage.cpp
sed -i 's/nMaxOrphans/max_orphans/g' src/txorphanage.h src/txorphanage.cpp
sed -i 's/COrphanTx/OrphanTx/g' src/txorphanage.h src/txorphanage.cpp src/test/denialofservice_tests.cpp
-END VERIFY SCRIPT-
2021-02-27 01:08:09 +10:00
Anthony Towns
6bd4963c06 txorphanage: Move functions and data into class
Collects all the orphan handling globals into a single member var in
net_processing, and ensures access is encapuslated into the interface
functions. Also adds doxygen comments for methods.
2021-02-27 01:07:55 +10:00
Anthony Towns
03257b832d txorphanage: Extract EraseOrphansForBlock
Extract code that erases orphans when a new block is found into
EraseOrphansForBlock.
2021-02-27 00:31:09 +10:00
Anthony Towns
3c4c3c2fdd net_processing: drop AddOrphanTx
All the interesting functionality of AddOrphanTx is already in other
functions, so call those functions directly in the one place that
AddOrphanTx was used.
2021-02-27 00:30:11 +10:00
Anthony Towns
26d1a6ccd5 denialofservices_tests: check txorphanage's AddTx
Rather than checking net_processing's internal implementation of
AddOrphanTx, test txorphanage's exported AddTx interface. Note that
this means AddToCompactExtraTransactions is no longer tested here.
2021-02-26 23:55:10 +10:00
Anthony Towns
1041616d7e txorphanage: Extract OrphanageAddTx
Extract code from AddOrphanTx into OrphanageAddTx.
2021-02-26 23:55:10 +10:00
Anthony Towns
f294da7274 txorphanage: Extract GetOrphanTx
Extract orphan lookup code into GetOrphanTx function.
2021-02-26 23:55:10 +10:00
Anthony Towns
83679ffc60 txorphanage: Extract HaveOrphanTx
Extract some common code into HaveOrphanTx function.
2021-02-26 23:55:10 +10:00
Anthony Towns
ee135c8d5b txorphanage: Extract AddChildrenToWorkSet
Extract some common code into AddChildrenToWorkSet function.

(It's a hard knock life)
2021-02-26 23:55:10 +10:00
Anthony Towns
38a11c355a txorphanage: Add lock annotations
EraseOrphansFor was called both with and without g_cs_orphans held,
correct that so that it's always called with it already held.

LimitOrphanTxSize was always called with g_cs_orphans held, so
add annotations and don't lock it a second time.
2021-02-26 23:55:10 +10:00
Anthony Towns
81dd57e5b1 txorphanage: Pass uint256 by reference instead of value 2021-02-26 23:55:07 +10:00
Anthony Towns
9d5313df7e move-only: Add txorphanage module
This module captures orphan tracking code for tx relay.

Can be reviewed with --color-moved=dimmed-zebra
2021-02-26 23:55:03 +10:00
Wladimir J. van der Laan
8d37841cdf
Merge #21277: wallet: listdescriptors uses normalized descriptor form
a69c3b35f8 wallet: listdescriptors uses normalized descriptor form (Ivan Metlushko)

Pull request description:

  Rationale: show importable descriptors with `listdescriptors` RPC

  It uses #19136 to derive xpub at the last hardened step.

  **Before**:
  ```
  [
      {
        "desc": "wpkh(tpubD6NzVbkrYhZ4YUQRJL49TWw1VR5v3QKUNYaGGMUfJUm19x5ZqQ2hEiPiYbAQvD2nHoPGQGPg3snLPM8sjmYpvx7XQhkmyfk8xhsUwKbXzyh/84'/1'/0'/0/*)#p4cn3erf",
        "timestamp": 1613982591,
        "active": true,
        "internal": false,
        "range": [
          0,
          999
        ],
        "next": 0
      },
      ...
  ]
  ```

  **After**:
  ```
  [
    {
      "desc": "wpkh([d4ade89c/84'/1'/0']tpubDDUEYcVXy6Vh5meHvcXN3sAr4k3fWwLZGpAHbkAHL8EnkDxp4d99CjNhJHfM2fUJicANvAKnCZS6XaVAgwAeKYc1KesGCN5qbQ25qQHrRxM/0/*)#8wq8rcft",
      "timestamp": 1613982591,
      "active": true,
      "internal": false,
      "range": [
        0,
        999
      ],
      "next": 0
    },
    ...
  ]
  ```

ACKs for top commit:
  achow101:
    ACK a69c3b35f8

Tree-SHA512: 4f92e726cb8245aa0b520729cfd272945f0c66830f0555544e0618883aca516318543fa6ab1862058c64b4e4ed54ad1da953e032f4846eef7454122031c1b005
2021-02-26 10:08:02 +01:00
Uplab
78f75a2d60 Allow icon colorization on mac os to better support dark mode 2021-02-25 22:21:22 +01:00
MarcoFalke
e49117470b
Merge bitcoin-core/gui#226: Add "Last Block" and "Last Tx" rows to peer details area
70d3c5d0b9 gui: add "Last Block" (CNodeStats::nLastBlockTime) to peer details (Jon Atack)
a21be7c401 gui: add "Last Tx" (CNodeStats::nLastTXTime) to peer details (Jon Atack)
4dc2fd6c37 qt: add RPCConsole::TimeDurationField helper, call systime only once (Jon Atack)

Pull request description:

  - add `RPCConsole::TimeDurationField` helper to replace repeated code and call system time only once in `RPCConsole::updateDetailWidget`
  - add "Last Tx" (`CNodeStats::nLastTXTime`) field to peer details
  - add "Last Block" (`CNodeStats::nLastBlockTime`) field to peer details

ACKs for top commit:
  hebasto:
    re-ACK 70d3c5d0b9

Tree-SHA512: 2611b71fd358ba9ffb6a6206275c08ecb5e683b6f87d022faaaba9802a15030430113afdb434814a9ae2681d04429aa733164bc110b64337ceaae12a0420f4f1
2021-02-25 14:49:47 +01:00
MarcoFalke
cac10e66d2
Merge #21264: fuzz: Two scripted diff renames
fae216a73d scripted-diff: Rename MakeFuzzingContext to MakeNoLogFileContext (MarcoFalke)
fa4fbec03e scripted-diff: Rename PROVIDE_MAIN_FUNCTION -> PROVIDE_FUZZ_MAIN_FUNCTION (MarcoFalke)

Pull request description:

  Split out two renames from #21003:

  * `PROVIDE_FUZZ_MAIN_FUNCTION`. *Reason*: This in only used by fuzzing, so the name should indicate that.
  * `MakeNoLogFileContext`. *Reason*: Better reflects what the helper does. Also, prepares it to be used in non-fuzz tests in the future.

ACKs for top commit:
  practicalswift:
    cr ACK fae216a73d: scripted-diff looks correct

Tree-SHA512: e5d347746f5da72b0c86fd4f07ac2e4b3016e88e8c97a830c73bd79d0af6d0245fe7712487fc20344d6cc25958941716c1678124a123930407e3a437265b71df
2021-02-25 14:42:48 +01:00
Jon Atack
70d3c5d0b9
gui: add "Last Block" (CNodeStats::nLastBlockTime) to peer details 2021-02-25 12:25:07 +01:00
Jon Atack
a21be7c401
gui: add "Last Tx" (CNodeStats::nLastTXTime) to peer details 2021-02-25 11:33:19 +01:00
Jon Atack
4dc2fd6c37
qt: add RPCConsole::TimeDurationField helper, call systime only once 2021-02-25 11:32:51 +01:00
MarcoFalke
8ca6bd0dac
Merge bitcoin-core/gui#223: qt: Re-add and rename transaction "Edit Label" action
5440c07457 qt: Rename "Edit label" to "Edit address label" (Wladimir J. van der Laan)
22664d6287 Revert "qt: Remove Transactionview Edit Label Action" (Wladimir J. van der Laan)

Pull request description:

  This reverts PR #211.

  I disagree with this change, I use the functionality a lot, it was the primary way I used to organize and edit transactions labels and am sad to see this go.

  > you can edit a sending address in the send tab Address Book

  Using the address book should not be encouraged at all! A while ago it was even proposed to remove it. There's rarely need to scroll through all historical addresses used and unused. The transaction list does just fine for this.

  > While all other actions apply directly to the selected transaction, the Edit Label action applies to the selected transaction's address.

  **In practice** when bitcoin is used in the commonly advised way, generate a new address for each transaction, those are equivalent though.

  I doubt I (and **luke-jr**) will be the only users that will stumblle on this. Further discussion here: https://github.com/bitcoin-core/gui/pull/211#issuecomment-784755998

ACKs for top commit:
  hebasto:
    ACK 5440c07457, verified that 22664d6287 is a clean revert of 8f9644890a.

Tree-SHA512: 3a86a730279bc454d0bd25d874dbfb6b1c0492480e66c3164e7c60d8658d622d4522de11bf8564876dc3ee056b53db71ecbe8a37281bf25d41a27e6e0d72ad8f
2021-02-25 09:09:34 +01:00
MarcoFalke
09bc7bfed1
Merge bitcoin-core/gui#214: qt: Disable requests context menu actions when appropriate
bb3da8fe41 qt: Disable requests context menu actions when appropriate (Jarol Rodriguez)

Pull request description:

  The recent requests table will allow you to copy data points even if they do not exist. This PR implements checks to disable the `copy label`, `copy message`, and `copy amount` context menu actions if the respective fields are empty. This brings the recent requests table context menu behavior closer to the behavior seen in the transaction view.

  On a payment request entry which does not have a value for label, message, or amount:
  | Master        | PR               |
  | ----------- | ----------- |
  |<img width="169" alt="Screen Shot 2021-02-19 at 1 22 28 AM" src="https://user-images.githubusercontent.com/23396902/108466086-167adc00-7251-11eb-8bd6-13984042bdb3.png">| <img width="169" alt="Screen Shot 2021-02-19 at 1 21 49 AM" src="https://user-images.githubusercontent.com/23396902/108466185-3e6a3f80-7251-11eb-9dd8-492ed07fd638.png">|

  `copy URI` never needs to be disabled as an entry in the recent requests table must have a URI even if it doesn't have a label, message, or amount. #213 will add a `copy address` context menu action. This also does not need a check as an entry must be associated with an address.

  Below are some more examples of how this PR will behave:
  **Has Label, Message, and Amount**
  <img width="780" alt="Screen Shot 2021-02-19 at 12 05 38 AM" src="https://user-images.githubusercontent.com/23396902/108466507-c18b9580-7251-11eb-8875-f3aeb9c4c8e9.png">

  **Has Label and Amount, but no Message**
  <img width="780" alt="Screen Shot 2021-02-19 at 12 05 58 AM" src="https://user-images.githubusercontent.com/23396902/108466421-9b65f580-7251-11eb-97eb-a3bfaa21fa7d.png">

ACKs for top commit:
  hebasto:
    re-ACK bb3da8fe41

Tree-SHA512: d98f1a6e05ebf6d9d056bc5754aca78ca7ecda93f497dba88187b947ca4a261eb7dc5e8c872956315acaa0008cc39320fb5806e17117e0c873090ad917ca4a3d
2021-02-25 09:02:44 +01:00
MarcoFalke
434065a483
Merge bitcoin-core/gui#219: qt: Prevent the main window popup menu
ca5bd1c8e5 qt: Prevent the main window popup menu (Hennadii Stepanov)

Pull request description:

  https://github.com/bitcoin/bitcoin/issues/11168 is not fixed by https://github.com/bitcoin/bitcoin/pull/11169 completely, as users are allowed to right click on the menu bar:

  ![Screenshot from 2021-02-23 14-18-24](https://user-images.githubusercontent.com/32963518/108842753-699eb700-75e2-11eb-92ec-3aff9aa80bd4.png)

  This PR moves the context menu prohibition from `QToolBar` instance to its parent `BitcoinGUI` instance, which is derived from `QMainWindow`.

ACKs for top commit:
  jarolrod:
    ACK ca5bd1c8e5, tested on Ubuntu 20.04 Qt 5.12. Confirming that I can replicate the behavior described on `master` and this `PR` fixes it.
  leonardojobim:
    tACK ca5bd1c8e5

Tree-SHA512: a654ecf7ee35bb271df039be77077c1e1f9514e332587ba8622cea18da6a5b3ae8a7eb421e404ec5993c31a2f4d028e0e456fcc01facdbf61a2bc3b1e8423982
2021-02-25 08:59:59 +01:00
MarcoFalke
fa7ff0790e
rpc: Properly document submitblock return value
Can be reviewed with --ignore-all-space
2021-02-25 08:21:28 +01:00
MarcoFalke
fae542c28b
rpc: Properly document getblocktemplate return value
Can be reviewed with --ignore-all-space
2021-02-25 08:21:26 +01:00
MarcoFalke
fabaccf031
rpc: Properly document scantxoutset return value
Can be reviewed with --ignore-all-space
2021-02-25 08:09:20 +01:00
MarcoFalke
faa2059547
rpc: Properly document gettxout return value
Can be reviewed with --ignore-all-space
2021-02-25 08:06:26 +01:00
Hennadii Stepanov
df8f2a11dc
test: Replace accidentally placed bit-OR with logical-OR 2021-02-24 12:57:03 +02:00
Wladimir J. van der Laan
b59f2787e5
Merge #18017: txmempool: split epoch logic into class
fd6580e405 [refactor] txmempool: split epoch logic into class (Anthony Towns)

Pull request description:

  Splits the epoch logic introduced in #17925 into a separate class.

  Uses clang's thread safety annotations and encapsulates the data more strongly to reduce chances of bugs from API misuse.

ACKs for top commit:
  jonatack:
    ACK fd6580e405 using clang thread safety annotations looks like a very good idea, and the encapsulation this change adds should improve robustness (and possible unit test-ability) of the code. Verified that changing some of the locking duly provoked build-time warnings with Clang 9 on Debian and that small changes in the new `Epoch` class were covered by failing functional test assertions in `mempool_updatefromblock.py`, `mempool_resurrect.py`, and `mempool_reorg.py`
  hebasto:
    re-ACK fd6580e405, since my [previous](https://github.com/bitcoin/bitcoin/pull/18017#pullrequestreview-569619362) review:

Tree-SHA512: 7004623faa02b56639aa05ab7a078320a6d8d54ec62d8022876221e33f350f47df51ddff056c0de5be798f8eb39b5c03c2d3f035698555d70abc218e950f2f8c
2021-02-24 09:57:21 +01:00
Wladimir J. van der Laan
5440c07457 qt: Rename "Edit label" to "Edit address label"
This makes it more specific what the action refers to.
(Suggested by Pieter Wuille)
2021-02-24 08:56:41 +01:00
Wladimir J. van der Laan
22664d6287 Revert "qt: Remove Transactionview Edit Label Action"
This reverts commit 8f9644890a.
2021-02-24 08:35:55 +01:00
Hennadii Stepanov
faa06ecc9c
build: Bump minimum Qt version to 5.9.5 2021-02-23 21:34:42 +02:00
William Casarin
da30c1bb05 wallet: fix doc typo in signer option
Signed-off-by: William Casarin <jb55@jb55.com>
2021-02-23 11:05:13 -08:00
Wladimir J. van der Laan
2e8116149c
Merge #21250: build: make HAVE_O_CLOEXEC available outside LevelDB (bugfix)
9bac71350d build: make HAVE_O_CLOEXEC available outside LevelDB (bugfix) (Sebastian Falbesoner)
584fd91d2d init: only use pipe2 if availabile, check in configure (Sebastian Falbesoner)

Pull request description:

  The result of the O_CLOEXEC availability check is currently only set in the Makefile and passed to LevelDB (see `LEVELDB_CPPFLAGS_INT` in `src/Makefile.leveldb.include`), but not defined to be used in our codebase. This means that code within the preprocessor conditional `#if HAVE_O_CLOEXEC` was actually never compiled. On the master branch this is currently used for pipe creation in `src/shutdown.cpp`, PR #21007 moves this part to a new module (I found the issue while testing that PR).

  The fix is similar to the one in #19803, which solved the same problem for HAVE_FDATASYNC.

  In the course of working on the PR it turned out that pipe2 is not available an all platforms, hence a configure check and a corresponding define HAVE_PIPE2 is introduced and used.

  The PR can be tested by anyone with a system that has pipe2 and O_CLOEXEC available by putting gibberish into the HAVE_O_CLOEXEC block: on master, everything should compile fine, on PR, the compiler should abort with an error. At least that's my naive way of testing preprocessor logic, happy to hear more sophisticated ways :-)

ACKs for top commit:
  laanwj:
    Code review ACK 9bac71350d

Tree-SHA512: aec89faf6ba52b6f014c610ebef7b725d9e967207d58b42a4a71afc9f1268fcb673ecc85b33a2a3debba8105a304dd7edaba4208c5373fcef2ab83e48a170051
2021-02-23 18:56:44 +01:00
MarcoFalke
1b045b5eef
Merge #21053: rpc, test: document {previous,next}blockhash as optional
ba7e17e073 rpc, test: document {previous,next}blockhash as optional (Sebastian Falbesoner)

Pull request description:

  This PR updates the result help of the following RPCs w.r.t. the `previousblockhash` and `nextblockhash` fields:
  - getblockheader
  - getblock

  Also adds trivial tests on genesis block (should not contain "previousblockhash") and best block (should not contain "nextblockhash").

Top commit has no ACKs.

Tree-SHA512: ef42c5c773fc436e1b4a67be14e2532e800e1e30e45e54a57431c6abb714d2c069c70d40ea4012d549293b823a1973b3f569484b3273679683b28ed40abf46bb
2021-02-23 18:28:23 +01:00
Wladimir J. van der Laan
a9335e4f12
Merge #16546: External signer support - Wallet Box edition
f75e0c1edd doc: add external-signer.md (Sjors Provoost)
d4b0107d68 rpc: send: support external signer (Sjors Provoost)
245b4457cf rpc: signerdisplayaddress (Sjors Provoost)
7ebc7c0215 wallet: ExternalSigner: add GetDescriptors method (Sjors Provoost)
fc5da520f5 wallet: add GetExternalSigner() (Sjors Provoost)
259f52cc33 test: external_signer wallet flag is immutable (Sjors Provoost)
2655197e1c rpc: add external_signer option to createwallet (Sjors Provoost)
2700f09c41 rpc: signer: add enumeratesigners to list external signers (Sjors Provoost)
07b7c940a7 rpc: add external signer RPC files (Sjors Provoost)
8ce7767071 wallet: add ExternalSignerScriptPubKeyMan (Sjors Provoost)
157ea7c614 wallet: add external_signer flag (Sjors Provoost)
f3e6ce78fb test: add external signer test (Sjors Provoost)
8cf543f96d wallet: add -signer argument for external signer command (Sjors Provoost)
f7eb7ecc67 test: framework: add skip_if_no_external_signer (Sjors Provoost)
87a97941f6 configure: add --enable-external-signer (Sjors Provoost)

Pull request description:

  Big picture overview in [this gist](https://gist.github.com/Sjors/29d06728c685e6182828c1ce9b74483d).

  This PR lets `bitcoind` call an arbitrary command `-signer=<cmd>`, e.g. a hardware wallet driver,  where it can fetch public keys, ask to display an address, and sign a transaction (using PSBT under the hood).

  It's design to work with https://github.com/bitcoin-core/HWI, which supports multiple hardware wallets. Any command with the same arguments and return values will work. It simplifies the manual procedure described [here](https://github.com/bitcoin-core/HWI/blob/master/docs/bitcoin-core-usage.md).

  Usage is documented in [doc/external-signer.md](
  https://github.com/Sjors/bitcoin/blob/2019/08/hww-box2/doc/external-signer.md), which also describes what protocol a different signer binary should conform to.

  Use `--enable-external-signer` to opt in, requires Boost::Process:

  ```
  Options used to compile and link:
    with wallet     = yes
    with gui / qt   = no
    external signer = yes
  ```

  It adds the following RPC methods:
  * `enumeratesigners`: asks <cmd> for a list of signers (e.g. devices) and their master key fingerprint
  * `signerdisplayaddress <address>`:  asks <cmd> to display an address

  It enhances the following RPC methods:
  * `createwallet`: takes an additional `external_signer` argument and fetches keys from device
  * `send`: automatically sends transaction to device and waits

  Usage TL&DR:
  * clone HWI repo somewhere and launch `bitcoind -signer=../HWI/hwi.py`
  * check if you can see your hardware device: `bitcoin-cli enumeratesigners`
  * create wallet and auto import keys `bitcoin-cli createwallet "hww" true true "" true true true`
  * display address on device: `bitcoin-cli signerdisplayaddress ...`
  * to spend, use `send` RPC and approve transaction on device

  Prerequisites:
  - [x] #21127 load wallet flags before everything else
  - [x] #21182 remove mostly pointless BOOST_PROCESS macro

  Potentially useful followups:
  - GUI support: bitcoin-core/gui#4
  - bumpfee support
  - (automatically) verify (a subset of) keys on the device after import, through message signing

ACKs for top commit:
  laanwj:
    re-ACK f75e0c1edd

Tree-SHA512: 7db8afd54762295c1424c3f01d8c587ec256a72f34bd5256e04b21832dabd5dc212be8ab975ae3b67de75259fd569a561491945750492f417111dc7b6641e77f
2021-02-23 17:56:43 +01:00