| Commit message (Collapse) | Author | Age | Files | Lines |
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The entries of the RIB were broken as some paths in FUSE were checked
against the old entry format. Updated the address format to use a dot
to avoid escaping colons and spaces and be friendlier to command line
tools such as 'cat'.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
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This is a rewrite of the DHT for name-to-address resolution in the
unicast layer. It is now integrated as a proper directory policy. The
dir_wait_running function is removed, instead the a DHT peer is passed
on during IPCP enrolment.
Each DHT request/response gets a random 64-bit ID ('cookie'). DHT
messages to the same peer are deduped, except in the case when the DHT
is low on contacts. In that case, it will contact the per it received
at enrolment for more contacts. To combat packet loss, these messages
are not deduped by means of a 'magic cookie', chosen at random when
the DHT starts.
The DHT parameters (Kademlia) can be set using the configfile or the
IRM command line tools:
if DIRECTORY_POLICY == DHT
[dht_alpha <search factor> (default: 3)]
[dht_k <replication factor> (default: 8)]
[dht_t_expire <expiration (s)> (default: 86400)]
[dht_t_refresh <contact refresh (s)> (default: 900)]
[dht_t_replicate <replication (s)> (default: 900)]
This commit also adds support for a protocol debug level (PP).
Protocol debugging for the DHT can be enabled using the
DEBUG_PROTO_DHT build flag.
The DHT has the following message types:
DHT_STORE, sent to k peers. Not acknowledged.
DHT_STORE --> [2861814146dbf9b5|ed:d9:e2:c4].
key: bcc236ab6ec69e65 [32 bytes]
val: 00000000c4e2d9ed [8 bytes]
exp: 2025-08-03 17:29:44 (UTC).
DHT_FIND_NODE_REQ, sent to 'alpha' peers, with a corresponding
response. This is used to update the peer routing table to iteratively
look for the nodes with IDs closest to the requested key.
DHT_FIND_NODE_REQ --> [a62f92abffb451c4|ed:d9:e2:c4].
cookie: 2d4b7acef8308210
key: a62f92abffb451c4 [32 bytes]
DHT_FIND_NODE_RSP <-- [2861814146dbf9b5|ed:d9:e2:c4].
cookie: 2d4b7acef8308210
key: a62f92abffb451c4 [32 bytes]
contacts: [1]
[a62f92abffb451c4|9f:0d:c1:fb]
DHT_FIND_VALUE_REQ, sent to 'k' peers, with a corresponding
response. Used to find a value for a key. Will also send its closest
known peers in the response.
DHT_FIND_VALUE_REQ --> [2861814146dbf9b5|ed:d9:e2:c4].
cookie: 80a1adcb09a2ff0a
key: 42dee3b0415b4f69 [32 bytes]
DHT_FIND_VALUE_RSP <-- [2861814146dbf9b5|ed:d9:e2:c4].
cookie: 80a1adcb09a2ff0a
key: 42dee3b0415b4f69 [32 bytes]
values: [1]
00000000c4e2d9ed [8 bytes]
contacts: [1]
[a62f92abffb451c4|9f:0d:c1:fb]
Also removes ubuntu 20 from appveyor config as it is not supported anymore.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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Slow but steady.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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2022 was a rather slow year...
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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Growing pains.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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The policies were all in a single folder pol/, and have been moved to
a folder per component/mechanism to keep things a bit more orderly.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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