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e83c3ccc47
* p2p/enr: add entries for for IPv4/IPv6 separation This adds entry types for "ip6", "udp6", "tcp6" keys. The IP type stays around because removing it would break a lot of code and force everyone to care about the distinction. * p2p/enode: track IPv4 and IPv6 address separately LocalNode predicts the local node's UDP endpoint and updates the record. This change makes it predict IPv4 and IPv6 endpoints separately since they can now be in the record at the same time. * p2p/enode: implement base64 text format * all: switch to enode.Parse(...) This allows passing base64-encoded node records to all the places that previously accepted enode:// URLs. The URL format is still supported. * cmd/bootnode, p2p: log node URL instead of ENR ...and return the base64 record in NodeInfo.
55 lines
1.7 KiB
Go
55 lines
1.7 KiB
Go
// Copyright 2019 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package les
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import (
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"github.com/ethereum/go-ethereum/eth"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/p2p/enode"
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)
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type ulc struct {
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trustedKeys map[string]struct{}
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minTrustedFraction int
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}
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// newULC creates and returns a ultra light client instance.
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func newULC(ulcConfig *eth.ULCConfig) *ulc {
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if ulcConfig == nil {
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return nil
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}
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m := make(map[string]struct{}, len(ulcConfig.TrustedServers))
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for _, id := range ulcConfig.TrustedServers {
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node, err := enode.Parse(enode.ValidSchemes, id)
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if err != nil {
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log.Debug("Failed to parse trusted server", "id", id, "err", err)
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continue
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}
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m[node.ID().String()] = struct{}{}
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}
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return &ulc{m, ulcConfig.MinTrustedFraction}
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}
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// isTrusted return an indicator that whether the specified peer is trusted.
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func (u *ulc) isTrusted(p enode.ID) bool {
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if u.trustedKeys == nil {
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return false
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}
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_, ok := u.trustedKeys[p.String()]
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return ok
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}
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