Commit Graph

30 Commits

Author SHA1 Message Date
Devin Carr c24f275981 TUN-7065: Remove classic tunnel creation 2023-01-31 22:35:28 +00:00
Sudarsan Reddy 99b3736cc7 TUN-6999: cloudflared should attempt other edge addresses before falling back on protocol
This PR does two things:
It changes how we fallback to a lower protocol: The current state
is to try connecting with a protocol. If it fails, fall back to a
lower protocol. And try connecting with that and so on. With this PR,
if we fail to connect with a protocol, we will try to connect to other
edge addresses first. Only if we fail to connect to those will we
fall back to a lower protocol.
It fixes a behaviour where if we fail to connect to an edge addr,
we keep re-trying the same address over and over again.
This PR now switches between edge addresses on subsequent connecton attempts.
Note that through these switches, it still respects the backoff time.
(We are connecting to a different edge, but this helps to not bombard an edge
address with connect requests if a particular edge addresses stops working).
2022-12-14 13:17:21 +00:00
Sudarsan Reddy 9339bb9485 TUN-6929: Use same protocol for other connections as first one
This PR changes protocol initialization of the other N connections to be
the same as the one we know the initial tunnel connected with. This is
so we homogenize connections and not lead to some connections being
QUIC-able and the others not.

There's also an improvement to the connection registered log so we know
what protocol every individual connection connected with from the
cloudflared side.
2022-11-17 10:28:04 +00:00
cthuang be0305ec58 TUN-6741: ICMP proxy tries to listen on specific IPv4 & IPv6 when possible
If it cannot determine the correct interface IP, it will fallback to all interfaces.
This commit also introduces the icmpv4-src and icmpv6-src flags
2022-09-26 11:37:08 +01:00
cthuang 3d345d3748 TUN-6595: Enable datagramv2 and icmp proxy by default 2022-09-20 14:02:02 +00:00
cthuang de00396669 TUN-6778: Cleanup logs about ICMP 2022-09-19 15:46:34 +00:00
cthuang 8a53c1aa1d TUN-6592: Decrement TTL and return ICMP time exceed if it's 0 2022-09-15 17:53:26 +01:00
cthuang bf3d70d1d2 TUN-6654: Support ICMPv6 on Linux and Darwin 2022-09-12 09:27:06 +01:00
cthuang fc20a22685 TUN-6695: Implement ICMP proxy for linux 2022-09-05 14:49:42 +00:00
Devin Carr cfef0e737f TUN-6720: Remove forcibly closing connection during reconnect signal
Previously allowing the reconnect signal forcibly close the connection
caused a race condition on which error was returned by the errgroup
in the tunnel connection. Allowing the signal to return and provide
a context cancel to the connection provides a safer shutdown of the
tunnel for this test-only scenario.
2022-08-31 21:50:02 +00:00
cthuang 7e760f9fcc TUN-6586: Change ICMP proxy to only build for Darwin and use echo ID to track flows 2022-08-27 22:37:08 +01:00
Sudarsan Reddy e3390fcb15 TUN-6705: Tunnel should retry connections forever
Protocolbackoff arrays now have Retryforever flag set to true to enable
cloudflared to keep trying to reconnect perpetually.
2022-08-26 08:27:15 +00:00
cthuang 59f5b0df83 TUN-6530: Implement ICMPv4 proxy
This proxy uses unprivileged datagram-oriented endpoint and is shared by all quic connections
2022-08-24 17:33:03 +01:00
Sudarsan Reddy 99f39225f1 TUN-6617: Dont fallback to http2 if QUIC conn was successful.
cloudflared falls back aggressively to HTTP/2 protocol if a connection
attempt with QUIC failed. This was done to ensure that machines with UDP
egress disabled did not stop clients from connecting to the cloudlfare
edge. This PR improves on that experience by having cloudflared remember
if a QUIC connection was successful which implies UDP egress works. In
this case, cloudflared does not fallback to HTTP/2 and keeps trying to
connect to the edge with QUIC.
2022-08-12 08:40:03 +00:00
Sudarsan Reddy d3fd581b7b Revert "TUN-6617: Dont fallback to http2 if QUIC conn was successful."
This reverts commit 679a89c7df.
2022-08-11 20:27:22 +01:00
Sudarsan Reddy 679a89c7df TUN-6617: Dont fallback to http2 if QUIC conn was successful.
cloudflared falls back aggressively to HTTP/2 protocol if a connection
attempt with QUIC failed. This was done to ensure that machines with UDP
egress disabled did not stop clients from connecting to the cloudlfare
edge. This PR improves on that experience by having cloudflared remember
if a QUIC connection was successful which implies UDP egress works. In
this case, cloudflared does not fallback to HTTP/2 and keeps trying to
connect to the edge with QUIC.
2022-08-11 17:55:10 +00:00
Devin Carr dd540af695 TUN-6388: Fix first tunnel connection not retrying 2022-06-23 16:55:03 +00:00
Devin Carr c7a6304d32 TUN-6007: Implement new edge discovery algorithm
(cherry picked from commit 4f468b8a5d)
2022-06-23 16:55:03 +00:00
Devin Carr 1d79831651 Revert "TUN-6007: Implement new edge discovery algorithm"
This reverts commit 4f468b8a5d.
2022-06-14 16:08:03 -07:00
Devin Carr 4f468b8a5d TUN-6007: Implement new edge discovery algorithm 2022-06-08 21:09:45 +00:00
Devin Carr ee80e55833 TUN-6339: Add config for IPv6 support 2022-06-02 16:04:26 -07:00
cthuang e4278bab97 TUN-6070: First connection retries other edge IPs if the error is quic timeout(likely due to firewall blocking UDP) 2022-04-19 12:37:32 +01:00
cthuang d68ff390ca TUN-5698: Make ingress rules and warp routing dynamically configurable 2022-02-16 09:38:28 +00:00
cthuang e22422aafb TUN-5749: Refactor cloudflared to pave way for reconfigurable ingress
- Split origin into supervisor and proxy packages
- Create configManager to handle dynamic config
2022-02-14 15:37:09 +00:00
cthuang fb82b2ced5 TUN-3019: Remove declarative tunnel entry code 2020-05-30 05:54:17 +08:00
Dalton 046be63253 AUTH-2596 added new logger package and replaced logrus 2020-05-27 17:07:19 -05:00
Adam Chalmers a60c0273f5 TUN-2714: New edge discovery. Connections try to reconnect to the same edge IP. 2020-02-14 19:49:54 +00:00
Chung-Ting Huang c5bacf4d95 TUN-2563: Exposes config_version metrics 2019-11-19 20:42:41 +00:00
Nick Vollmar 74f3a55c57 TUN-2117: read group/system-name from CLI, send it to edge 2019-08-01 22:04:05 +00:00
Chung-Ting Huang 0a742feb98 TUN-1885: Reconfigure cloudflared on receiving new ClientConfig 2019-06-20 19:07:59 -05:00