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authorWladimir J. van der Laan <laanwj@gmail.com>2018-05-29 15:26:07 +0200
committerWladimir J. van der Laan <laanwj@gmail.com>2018-05-29 15:31:54 +0200
commit70d3541313799d75f4efb7cd81b13999ee909241 (patch)
treed2914c4dfa1f2cdef0c56560601de293f5e9e4d4 /doc/.gitignore
parent3fd0c2336a12a1945cc2b8c09d821a0461b00f32 (diff)
parent87fe292d897e09e176ac7e254144466c319cc9ac (diff)
Merge #13134: net: Add option `-enablebip61` to configure sending of BIP61 notifications
87fe292d897e09e176ac7e254144466c319cc9ac doc: Mention disabling BIP61 in bips.md (Wladimir J. van der Laan) fe16dd8226d924f44432c5b5014aa49ff45c82ff net: Add option `-enablebip61` to configure sending of BIP61 notifications (Wladimir J. van der Laan) Pull request description: This commit adds a boolean option `-peersendreject`, defaulting to `1`, that can be used to disable the sending of [BIP61](https://github.com/bitcoin/bips/blob/master/bip-0061.mediawiki) `reject` messages. This functionality has been requested for various reasons: - security (DoS): reject messages can reveal internal state that can be used to target certain resources such as the mempool more easily. - bandwidth: a typical node sends lots of reject messages; this counts against upstream bandwidth. Also the reject messages tend to be larger than the message that was rejected. On the other hand, reject messages can be useful while developing client software (I found them indispensable while creating bitcoin-submittx), as well as for our own test cases, so whatever the default becomes on the long run, IMO the functionality should be retained as option. But that's a discussion for later, for now it's simply a node operator decision. Also adds a RPC test that checks the functionality. Tree-SHA512: 9488cc53e13cd8e5c6f8eb472a44309572673405c1d1438c3488f627fae622c95e2198bde5ed7d29e56b948e2918bf1920239e9f865889f4c37c097c37a4d7a9
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