This removes some inconsistencies in what worked and didn't work in
safemode. Now only RPCs involved in getting balances or sending
funds are disabled.
Previously you could mine but not submit blocks— but we may need more
blocks to resolve a fork that triggered safe mode in the first place,
and the non-submission was not reliable since some miners submit
blocks via multiple means. There were also a number of random commands
disabled that had nothing to do with the blockchain like verifymessage.
Thanks to earlz for pointing out that there were some moderately cheap
ways to maliciously trigger safe mode, which brought attention to
the fact that safemode wasn't used in a very intelligent way.
This adds a -whitelist option to specify subnet ranges from which peers
that connect are whitelisted. In addition, there is a -whitebind option
which works like -bind, except peers connecting to it are also
whitelisted (allowing a separate listen port for trusted connections).
Being whitelisted has two effects (for now):
* They are immune to DoS disconnection/banning.
* Transactions they broadcast (which are valid) are always relayed,
even if they were already in the mempool. This means that a node
can function as a gateway for a local network, and that rebroadcasts
from the local network will work as expected.
Whitelisting replaces the magic exemption localhost had for DoS
disconnection (local addresses are still never banned, though), which
implied hidden service connects (from a localhost Tor node) were
incorrectly immune to DoS disconnection as well. This old
behaviour is removed for that reason, but can be restored using
-whitelist=127.0.0.1 or -whitelist=::1 can be specified. -whitebind
is safer to use in case non-trusted localhost connections are expected
(like hidden services).
- add a small wrapper in util around RAND_bytes() and replace with
GetRandBytes() in the code to log errors from calling RAND_bytes()
- remove OpenSSL header rand.h where no longer needed
- small changes to Shutdown(), buffer __func__, which is now used in
all LogPrintf() calls and format for better readability
- order using namespace alpabetically
a3e192a replaced MINE_ with ISMINE_ (JaSK)
53a2148 fixed bug where validateaddress doesn't display information (JaSK)
f28707a fixed bug in ListReceived() (JaSK)
519dd1c Added MINE_ALL = (spendable|watchonly) (JaSK)
23b0506 Fixed some stuff in TransactionDesc (JaSK)
80dda36 removed default argument values for ismine filter (JaSK)
d5087d1 Use script matching rather than destination matching for watch-only. (Pieter Wuille)
0fa2f88 added includedWatchonly argument to listreceivedbyaddress/...account (JaSK)
f87ba3d added includeWatchonly argument to 'gettransaction' because it affects balance calculation (JaSK)
a5c6c5d fixed tiny glitch and improved readability like laanwj suggested (JaSK)
d7d5d23 Added argument to listtransactions and listsinceblock to include watchonly addresses (JaSK)
952877e Showing 'involvesWatchonly' property for transactions returned by 'listtransactions' and 'listsinceblock'. It is only appended when the transaction involves a watchonly address. (JaSK)
83f3543 Added argument to listaccounts to include watchonly addresses (JaSK)
d4640d7 Added argument to getbalance to include watchonly addresses and fixed errors in balance calculation. (JaSK)
d2692f6 Watchonly transactions are marked in transaction history (JaSK)
ffd40da Watchonly balances are shown separately in gui. (JaSK)
2935b21 qt: Hide unspendable outputs in coin control (Wladimir J. van der Laan)
c898846 Add support for watch-only addresses (Pieter Wuille)
Gregory Maxwell