diff --git a/contrib/seeds/README.md b/contrib/seeds/README.md index 139c03181fc..6dc277f2985 100644 --- a/contrib/seeds/README.md +++ b/contrib/seeds/README.md @@ -4,7 +4,9 @@ Utility to generate the seeds.txt list that is compiled into the client (see [src/chainparamsseeds.h](/src/chainparamsseeds.h) and other utilities in [contrib/seeds](/contrib/seeds)). Be sure to update `PATTERN_AGENT` in `makeseeds.py` to include the current version, -and remove old versions as necessary. +and remove old versions as necessary (at a minimum when GetDesireableServiceFlags +changes its default return value, as those are the services which seeds are added +to addrman with). The seeds compiled into the release are created from sipa's DNS seed data, like this: diff --git a/src/net.cpp b/src/net.cpp index e00faaeecdb..5252128400a 100644 --- a/src/net.cpp +++ b/src/net.cpp @@ -136,7 +136,7 @@ static std::vector convertSeed6(const std::vector &vSeedsIn for (const auto& seed_in : vSeedsIn) { struct in6_addr ip; memcpy(&ip, seed_in.addr, sizeof(ip)); - CAddress addr(CService(ip, seed_in.port), NODE_NETWORK); + CAddress addr(CService(ip, seed_in.port), GetDesirableServiceFlags(NODE_NONE)); addr.nTime = GetTime() - GetRand(nOneWeek) - nOneWeek; vSeedsOut.push_back(addr); } diff --git a/src/protocol.h b/src/protocol.h index cf1d40db776..1de8a165c89 100644 --- a/src/protocol.h +++ b/src/protocol.h @@ -291,7 +291,15 @@ enum ServiceFlags : uint64_t { * unless they set NODE_NETWORK_LIMITED and we are out of IBD, in which * case NODE_NETWORK_LIMITED suffices). * - * Thus, generally, avoid calling with peerServices == NODE_NONE. + * Thus, generally, avoid calling with peerServices == NODE_NONE, unless + * state-specific flags must absolutely be avoided. When called with + * peerServices == NODE_NONE, the returned desirable service flags are + * guaranteed to not change dependant on state - ie they are suitable for + * use when describing peers which we know to be desirable, but for which + * we do not have a confirmed set of service flags. + * + * If the NODE_NONE return value is changed, contrib/seeds/makeseeds.py + * should be updated appropriately to filter for the same nodes. */ static ServiceFlags GetDesirableServiceFlags(ServiceFlags services) { return ServiceFlags(NODE_NETWORK | NODE_WITNESS);