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Add whitelistforcerelay to control forced relaying.

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Also renames whitelistalwaysrelay.

Nodes relay all transactions from whitelisted peers, this
 gets in the way of some useful reasons for whitelisting
 peers-- for example, bypassing bandwidth limitations.

The purpose of this forced relaying is for specialized gateway
 applications where a node is being used as a P2P connection
 filter and multiplexer, but where you don't want it getting
 in the way of (re-)broadcast.

This change makes it configurable with whitelistforcerelay.
This commit is contained in:
Gregory Maxwell
2015-11-25 23:00:23 +00:00
parent 326ffed09b
commit 325c725fb6
3 changed files with 19 additions and 10 deletions
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13
src/init.cpp
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@@ -388,7 +388,8 @@ std::string HelpMessage(HelpMessageMode mode)
strUsage += HelpMessageOpt("-whitebind=<addr>", _("Bind to given address and whitelist peers connecting to it. Use [host]:port notation for IPv6"));
strUsage += HelpMessageOpt("-whitelist=<netmask>", _("Whitelist peers connecting from the given netmask or IP address. Can be specified multiple times.") +
" " + _("Whitelisted peers cannot be DoS banned and their transactions are always relayed, even if they are already in the mempool, useful e.g. for a gateway"));
strUsage += HelpMessageOpt("-whitelistalwaysrelay", strprintf(_("Always relay transactions received from whitelisted peers (default: %d)"), DEFAULT_WHITELISTALWAYSRELAY));
strUsage += HelpMessageOpt("-whitelistrelay", strprintf(_("Accept relayed transactions received from whitelisted peers even when not relaying transactions (default: %d)"), DEFAULT_WHITELISTRELAY));
strUsage += HelpMessageOpt("-whitelistforcerelay", strprintf(_("Force relay of transactions from whitelisted peers even they violate local relay policy (default: %d)"), DEFAULT_WHITELISTFORCERELAY));
strUsage += HelpMessageOpt("-maxuploadtarget=<n>", strprintf(_("Tries to keep outbound traffic under the given target (in MiB per 24h), 0 = no limit (default: %d)"), DEFAULT_MAX_UPLOAD_TARGET));
#ifdef ENABLE_WALLET
@@ -752,13 +753,19 @@ void InitParameterInteraction()
// disable walletbroadcast and whitelistalwaysrelay in blocksonly mode
if (GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY)) {
if (SoftSetBoolArg("-whitelistalwaysrelay", false))
LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -whitelistalwaysrelay=0\n", __func__);
if (SoftSetBoolArg("-whitelistrelay", false))
LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -whitelistrelay=0\n", __func__);
#ifdef ENABLE_WALLET
if (SoftSetBoolArg("-walletbroadcast", false))
LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -walletbroadcast=0\n", __func__);
#endif
}
// Forcing relay from whitelisted hosts implies we will accept relays from them in the first place.
if (GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY)) {
if (SoftSetBoolArg("-whitelistrelay", true))
LogPrintf("%s: parameter interaction: -whitelistforcerelay=1 -> setting -whitelistrelay=1\n", __func__);
}
}
static std::string ResolveErrMsg(const char * const optname, const std::string& strBind)