diff options
Diffstat (limited to 'src/init.cpp')
-rw-r--r-- | src/init.cpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/init.cpp b/src/init.cpp index 6a17500d4f..818a02adf5 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -723,6 +723,16 @@ void InitParameterInteraction(ArgsManager& args) if (args.SoftSetBoolArg("-whitelistrelay", true)) LogPrintf("%s: parameter interaction: -whitelistforcerelay=1 -> setting -whitelistrelay=1\n", __func__); } + if (args.IsArgSet("-onlynet")) { + const auto onlynets = args.GetArgs("-onlynet"); + bool clearnet_reachable = std::any_of(onlynets.begin(), onlynets.end(), [](const auto& net) { + const auto n = ParseNetwork(net); + return n == NET_IPV4 || n == NET_IPV6; + }); + if (!clearnet_reachable && args.SoftSetBoolArg("-dnsseed", false)) { + LogPrintf("%s: parameter interaction: -onlynet excludes IPv4 and IPv6 -> setting -dnsseed=0\n", __func__); + } + } } /** @@ -1281,6 +1291,13 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info) // 2.1. -onlynet is not given or // 2.2. -onlynet=cjdns is given + // Requesting DNS seeds entails connecting to IPv4/IPv6, which -onlynet options may prohibit: + // If -dnsseed=1 is explicitly specified, abort. If it's left unspecified by the user, we skip + // the DNS seeds by adjusting -dnsseed in InitParameterInteraction. + if (args.GetBoolArg("-dnsseed") == true && !IsReachable(NET_IPV4) && !IsReachable(NET_IPV6)) { + return InitError(strprintf(_("Incompatible options: -dnsseed=1 was explicitly specified, but -onlynet forbids connections to IPv4/IPv6"))); + }; + // Check for host lookup allowed before parsing any network related parameters fNameLookup = args.GetBoolArg("-dns", DEFAULT_NAME_LOOKUP); |