mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2025-02-21 10:01:46 +00:00
A few more revisions to new multicast verbs.
This commit is contained in:
Adam Ierymenko
parent
2d41055bdc
commit
ed0ba49502
@ -893,6 +893,18 @@ bool IncomingPacket::_doNETWORK_CONFIG_REFRESH(const RuntimeEnvironment *RR,cons
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return true;
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}
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bool IncomingPacket::_doMULTICAST_GATHER(const RuntimeEnvironment *RR,const SharedPtr<Peer> &peer)
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{
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}
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bool IncomingPacket::_doMULTICAST_FRAME(const RuntimeEnvironment *RR,const SharedPtr<Peer> &peer)
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{
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}
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void IncomingPacket::_handleMulticastGatherResponse(const RuntimeEnvironment *RR,const SharedPtr<Peer> &peer,unsigned int startIdx)
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{
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}
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void IncomingPacket::_sendErrorNeedCertificate(const RuntimeEnvironment *RR,const SharedPtr<Peer> &peer,uint64_t nwid)
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{
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Packet outp(source(),RR->identity.address(),Packet::VERB_ERROR);
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@ -34,6 +34,7 @@
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#include "Switch.hpp"
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#include "Packet.hpp"
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#include "Peer.hpp"
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#include "CertificateOfMembership.hpp"
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#include "RuntimeEnvironment.hpp"
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namespace ZeroTier {
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@ -46,7 +47,7 @@ Multicaster::~Multicaster()
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{
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}
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void Multicaster::send(const RuntimeEnvironment *RR,uint64_t nwid,unsigned int limit,uint64_t now,const MulticastGroup &mg,const MAC &src,unsigned int etherType,const void *data,unsigned int len)
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void Multicaster::send(const RuntimeEnvironment *RR,uint64_t nwid,const CertificateOfMembership *com,unsigned int limit,uint64_t now,const MulticastGroup &mg,const MAC &src,unsigned int etherType,const void *data,unsigned int len)
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{
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Mutex::Lock _l(_groups_m);
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MulticastGroupStatus &gs = _groups[mg];
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@ -81,10 +82,11 @@ void Multicaster::send(const RuntimeEnvironment *RR,uint64_t nwid,unsigned int l
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if (sn) {
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Packet outp(sn->address(),RR->identity.address(),Packet::VERB_MULTICAST_GATHER);
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outp.append(nwid);
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outp.append((char)0); // TODO: include network membership cert
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outp.append((uint8_t)((com) ? 0x01: 0x00));
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mg.mac().appendTo(outp);
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outp.append((uint32_t)mg.adi());
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outp.append((uint32_t)((limit - (unsigned int)gs.members.size()) + 1)); // +1 just means we'll have an extra in the queue if available
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if (com) com->serialize(outp);
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outp.armor(sn->key(),true);
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sn->send(RR,outp.data(),outp.size(),now);
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}
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@ -46,6 +46,7 @@
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namespace ZeroTier {
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class RuntimeEnvironment;
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class CertificateOfMembership;
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/**
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* Database of known multicast peers within a network
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@ -100,6 +101,7 @@ public:
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*
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* @param RR Runtime environment
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* @param nwid Network ID
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* @param com Certificate of membership to include or NULL for none
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* @param limit Multicast limit
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* @param now Current time
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* @param mg Multicast group
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@ -108,7 +110,17 @@ public:
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* @param data Packet data
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* @param len Length of packet data
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*/
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void send(const RuntimeEnvironment *RR,uint64_t nwid,unsigned int limit,uint64_t now,const MulticastGroup &mg,const MAC &src,unsigned int etherType,const void *data,unsigned int len);
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void send(
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const RuntimeEnvironment *RR,
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uint64_t nwid,
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const CertificateOfMembership *com,
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unsigned int limit,
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uint64_t now,
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const MulticastGroup &mg,
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const MAC &src,
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unsigned int etherType,
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const void *data,
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unsigned int len);
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/**
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* Clean up and resort database
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@ -28,10 +28,11 @@
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#include "Constants.hpp"
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#include "OutboundMulticast.hpp"
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#include "Switch.hpp"
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#include "CertificateOfMembership.hpp"
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namespace ZeroTier {
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void OutboundMulticast::init(uint64_t timestamp,const Address &self,uint64_t nwid,unsigned int gatherLimit,const MAC &src,const MulticastGroup &dest,unsigned int etherType,const void *payload,unsigned int len)
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void OutboundMulticast::init(uint64_t timestamp,const Address &self,uint64_t nwid,const CertificateOfMembership *com,unsigned int gatherLimit,const MAC &src,const MulticastGroup &dest,unsigned int etherType,const void *payload,unsigned int len)
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{
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_timestamp = timestamp;
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_nwid = nwid;
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@ -41,8 +42,9 @@ void OutboundMulticast::init(uint64_t timestamp,const Address &self,uint64_t nwi
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_packet.setSource(self);
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_packet.setVerb(Packet::VERB_MULTICAST_FRAME);
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_packet.append((uint64_t)nwid);
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_packet.append((char)0); // 0 flags
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_packet.append((uint8_t)((com) ? 0x01 : 0x00));
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_packet.append((uint32_t)gatherLimit); // gather limit -- set before send, start with 0
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if (com) com->serialize(_packet);
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_packet.append((uint32_t)dest.adi());
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dest.mac().appendTo(_packet);
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src.appendTo(_packet);
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@ -42,6 +42,7 @@
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namespace ZeroTier {
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class Switch;
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class CertificateOfMembership;
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/**
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* An outbound multicast packet
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@ -64,6 +65,7 @@ public:
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* @param timestamp Creation time
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* @param self My ZeroTier address
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* @param nwid Network ID
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* @param com Certificate of membership to attach or NULL to omit
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* @param gatherLimit Number to lazily/implicitly gather with this frame or 0 for none
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* @param src Source MAC address of frame
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* @param dest Destination multicast group (MAC + ADI)
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@ -72,7 +74,17 @@ public:
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* @param len Length of data
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* @throws std::out_of_range Data too large to fit in a MULTICAST_FRAME
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*/
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void init(uint64_t timestamp,const Address &self,uint64_t nwid,unsigned int gatherLimit,const MAC &src,const MulticastGroup &dest,unsigned int etherType,const void *payload,unsigned int len);
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void init(
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uint64_t timestamp,
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const Address &self,
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uint64_t nwid,
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const CertificateOfMembership *com,
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unsigned int gatherLimit,
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const MAC &src,
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const MulticastGroup &dest,
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unsigned int etherType,
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const void *payload,
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unsigned int len);
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/**
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* @return Multicast creation time
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116
node/Packet.hpp
116
node/Packet.hpp
@ -148,6 +148,10 @@
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// Field incides for parsing verbs -------------------------------------------
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// Some verbs have variable-length fields. Those aren't fully defined here
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// yet-- instead they are parsed using relative indexes in IncomingPacket.
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// See their respective handler functions.
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#define ZT_PROTO_VERB_HELLO_IDX_PROTOCOL_VERSION (ZT_PACKET_IDX_PAYLOAD)
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#define ZT_PROTO_VERB_HELLO_IDX_MAJOR_VERSION (ZT_PROTO_VERB_HELLO_IDX_PROTOCOL_VERSION + 1)
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#define ZT_PROTO_VERB_HELLO_IDX_MINOR_VERSION (ZT_PROTO_VERB_HELLO_IDX_MAJOR_VERSION + 1)
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@ -188,40 +192,41 @@
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#define ZT_PROTO_VERB_EXT_FRAME_LEN_ETHERTYPE 2
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#define ZT_PROTO_VERB_EXT_FRAME_IDX_PAYLOAD (ZT_PROTO_VERB_EXT_FRAME_IDX_ETHERTYPE + ZT_PROTO_VERB_EXT_FRAME_LEN_ETHERTYPE)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_DEPTH (ZT_PACKET_IDX_PAYLOAD)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_DEPTH 2
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_FIFO (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_DEPTH + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_DEPTH)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_FIFO 320
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_BLOOM (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_FIFO + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_FIFO)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_BLOOM 1024
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FLAGS (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_BLOOM + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_BLOOM)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_FLAGS 1
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX__START_OF_SIGNED_PORTION (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FLAGS)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_NETWORK_ID (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FLAGS + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_FLAGS)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_NETWORK_ID 8
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_BLOOM_NONCE (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_NETWORK_ID + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_NETWORK_ID)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_BLOOM_NONCE 2
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_PREFIX_BITS (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_BLOOM_NONCE + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_BLOOM_NONCE)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_PREFIX_BITS 1
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_PREFIX (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_PREFIX_BITS + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_PREFIX_BITS)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_PREFIX 1
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ORIGIN (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_PREFIX + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_PREFIX)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_ORIGIN 5
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ORIGIN_MCID (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ORIGIN + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_ORIGIN)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_ORIGIN_MCID 3
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_GUID (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ORIGIN)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_GUID 8
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SOURCE_MAC (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ORIGIN_MCID + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_ORIGIN_MCID)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_SOURCE_MAC 6
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_DEST_MAC (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SOURCE_MAC + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_SOURCE_MAC)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_DEST_MAC 6
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_DEST_ADI (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_DEST_MAC + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_DEST_MAC)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_DEST_ADI 4
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ETHERTYPE (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_DEST_ADI + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_DEST_ADI)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_ETHERTYPE 2
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FRAME_LEN (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ETHERTYPE + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_ETHERTYPE)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_FRAME_LEN 2
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FRAME (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FRAME_LEN + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_FRAME_LEN)
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// P5_MULTICAST_FRAME is deprecated
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_PROPAGATION_DEPTH (ZT_PACKET_IDX_PAYLOAD)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_PROPAGATION_DEPTH 2
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_PROPAGATION_FIFO (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_DEPTH + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_DEPTH)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_PROPAGATION_FIFO 320
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_PROPAGATION_BLOOM (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_FIFO + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_FIFO)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_PROPAGATION_BLOOM 1024
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_FLAGS (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_BLOOM + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_BLOOM)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_FLAGS 1
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX__START_OF_SIGNED_PORTION (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FLAGS)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_NETWORK_ID (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FLAGS + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_FLAGS)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_NETWORK_ID 8
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_PROPAGATION_BLOOM_NONCE (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_NETWORK_ID + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_NETWORK_ID)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_PROPAGATION_BLOOM_NONCE 2
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_PROPAGATION_PREFIX_BITS (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_BLOOM_NONCE + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_BLOOM_NONCE)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_PROPAGATION_PREFIX_BITS 1
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_PROPAGATION_PREFIX (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_PREFIX_BITS + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_PREFIX_BITS)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_PROPAGATION_PREFIX 1
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_ORIGIN (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PROPAGATION_PREFIX + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_PREFIX)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_ORIGIN 5
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_ORIGIN_MCID (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ORIGIN + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_ORIGIN)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_ORIGIN_MCID 3
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_GUID (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ORIGIN)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_GUID 8
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_SOURCE_MAC (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ORIGIN_MCID + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_ORIGIN_MCID)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_SOURCE_MAC 6
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_DEST_MAC (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SOURCE_MAC + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_SOURCE_MAC)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_DEST_MAC 6
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_DEST_ADI (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_DEST_MAC + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_DEST_MAC)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_DEST_ADI 4
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_ETHERTYPE (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_DEST_ADI + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_DEST_ADI)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_ETHERTYPE 2
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_FRAME_LEN (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ETHERTYPE + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_ETHERTYPE)
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_LEN_FRAME_LEN 2
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#define ZT_PROTO_VERB_P5_MULTICAST_FRAME_IDX_FRAME (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FRAME_LEN + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_FRAME_LEN)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_FLAGS_HAS_MEMBERSHIP_CERTIFICATE 0x01
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@ -229,6 +234,18 @@
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#define ZT_PROTO_VERB_NETWORK_CONFIG_REQUEST_IDX_DICT_LEN (ZT_PROTO_VERB_NETWORK_CONFIG_REQUEST_IDX_NETWORK_ID + 8)
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#define ZT_PROTO_VERB_NETWORK_CONFIG_REQUEST_IDX_DICT (ZT_PROTO_VERB_NETWORK_CONFIG_REQUEST_IDX_DICT_LEN + 2)
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#define ZT_PROTO_VERB_MULTICAST_GATHER_IDX_NETWORK_ID (ZT_PACKET_IDX_PAYLOAD)
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#define ZT_PROTO_VERB_MULTICAST_GATHER_IDX_FLAGS (ZT_PROTO_VERB_MULTICAST_GATHER_IDX_NETWORK_ID + 8)
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#define ZT_PROTO_VERB_MULTICAST_GATHER_IDX_MAC (ZT_PROTO_VERB_MULTICAST_GATHER_IDX_FLAGS + 1)
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#define ZT_PROTO_VERB_MULTICAST_GATHER_IDX_ADI (ZT_PROTO_VERB_MULTICAST_GATHER_IDX_MAC + 6)
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#define ZT_PROTO_VERB_MULTICAST_GATHER_IDX_GATHER_LIMIT (ZT_PROTO_VERB_MULTICAST_GATHER_IDX_ADI + 4)
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#define ZT_PROTO_VERB_MULTICAST_GATHER_IDX_COM (ZT_PROTO_VERB_MULTICAST_GATHER_IDX_GATHER_LIMIT + 4)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_NETWORK_ID (ZT_PACKET_IDX_PAYLOAD)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FLAGS (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_NETWORK_ID + 8)
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#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_GATHER_LIMIT (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FLAGS + 1)
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// remainder are relative to offset after COM -- might do this with macros at some point
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#define ZT_PROTO_VERB_HELLO__OK__IDX_TIMESTAMP (ZT_PROTO_VERB_OK_IDX_PAYLOAD)
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#define ZT_PROTO_VERB_HELLO__OK__IDX_PROTOCOL_VERSION (ZT_PROTO_VERB_HELLO__OK__IDX_TIMESTAMP + 8)
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#define ZT_PROTO_VERB_HELLO__OK__IDX_MAJOR_VERSION (ZT_PROTO_VERB_HELLO__OK__IDX_PROTOCOL_VERSION + 1)
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@ -665,16 +682,20 @@ public:
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* <[6] MAC address of multicast group being queried>
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* <[4] 32-bit ADI for multicast group being queried>
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* <[4] 32-bit (suggested) max number of multicast peers desired or 0 for no limit>
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* [<[...] network membership certificate (optional)>]
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* [<[...] network certificate of membership if included>]
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*
|
||||
* Flags are:
|
||||
* 0x01 - network membership certificate is included
|
||||
* Flags:
|
||||
* 0x01 - Network certificate of membership is attached
|
||||
*
|
||||
* This message asks a peer for additional known endpoints that have
|
||||
* LIKEd a given multicast group. It's sent when the sender wishes
|
||||
* to send multicast but does not have the desired number of recipient
|
||||
* peers.
|
||||
*
|
||||
* A certificate of network membership can be included so that peers
|
||||
* can check network membership before responding. Without certificate
|
||||
* check any peer could probe multicast memberships on any network.
|
||||
*
|
||||
* OK response payload:
|
||||
* <[8] 64-bit network ID>
|
||||
* <[6] MAC address of multicast group being queried>
|
||||
@ -698,27 +719,30 @@ public:
|
||||
|
||||
/* Multicast frame:
|
||||
* <[8] 64-bit network ID>
|
||||
* <[1] flags (currently unused, must be 0)>
|
||||
* <[4] 32-bit (suggested) gather limit or 0 for no gathering>
|
||||
* <[1] flags>
|
||||
* <[4] 32-bit (suggested) gather limit or 0 for no implicit gathering>
|
||||
* [<[...] network certificate of membership if included>]
|
||||
* <[4] 32-bit multicast ADI (note that this is out of order here -- it precedes MAC)>
|
||||
* <[6] destination MAC or all zero for destination node>
|
||||
* <[6] source MAC or all zero for node of origin>
|
||||
* <[2] 16-bit ethertype>
|
||||
* <[...] ethernet payload>
|
||||
*
|
||||
* Flags:
|
||||
* 0x01 - Network certificate of membership is attached
|
||||
*
|
||||
* This is similar to EXT_FRAME but carries a multicast, and is sent
|
||||
* out to recipients on a multicast list.
|
||||
* out to recipients on a multicast list. It may also specify a desired
|
||||
* number of multicast peers to gather, which is called "implicit
|
||||
* gathering." It is only allowed if certificate authentication permits
|
||||
* these peers to communicate on this network.
|
||||
*
|
||||
* (ADI precedes MAC here so that everything from destination MAC forward
|
||||
* could be treated as a raw Ethernet frame.)
|
||||
*
|
||||
* OK response payload:
|
||||
* <[1] flags>
|
||||
* [... same as OK(GATHER) if flag 0x01 is set ...]
|
||||
*
|
||||
* Flags in OK are 0x01 for "gathering results returned," which can be
|
||||
* sent if a gather limit is specified in the original FRAME and there
|
||||
* are known endpoints to gather. This way frames can also gather.
|
||||
* <[1] flags, 0x01 if implicit gathering results are included>
|
||||
* [... same as OK(MULTICAST_GATHER) payload if flag 0x01 is set ...]
|
||||
*
|
||||
* ERROR response payload:
|
||||
* <[6] multicast group MAC>
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user