admin: Handle connections that fail protocol detection#960
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The HTTP detect module may fail to detect an HTTP protocol if the first read does not return at least 14 bytes. This has caused spurious failures as described in linkerd/linkerd2#5672. This change updates the admin server's protocol detection to handle these connections as HTTP/1 so that the HTTP server can try to process them and fail on its own if the connection really is not HTTP.
hawkw
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Mar 30, 2021
olix0r
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Mar 30, 2021
This release fixes two issues: 1. The inbound proxy could break non-meshed TLS connections when the initial ClientHello message was larger than 512 bytes or when the entire message was not received in the first data packet of the connection. TLS detection has been fixed to ensure that the entire message is preserved in these cases. 2. The admin server could emit warnings about HTTP detection failing in some innocuous situations, such as when the socket closes before a request is sent. These situations are now handled gracefully without logging warnings. --- * Update MAINTAINERS to point at the main repo (linkerd/linkerd2-proxy#950) * outbound: Configure endpoint construction in logical stack (linkerd/linkerd2-proxy#949) * outbound: Decouple the TCP connect stack from the target type (linkerd/linkerd2-proxy#951) * outbound: Make HTTP endpoint stack generic on its target (linkerd/linkerd2-proxy#952) * outbound: Make the HTTP server stack generic (linkerd/linkerd2-proxy#953) * Update profile response to include a logical address (linkerd/linkerd2-proxy#954) * inbound, outbound: `Param`-ify `listen::Addrs` (linkerd/linkerd2-proxy#955) * tls: Fix inbound I/O when TLS detection fails (linkerd/linkerd2-proxy#958) * tls: Test SNI detection (linkerd/linkerd2-proxy#959) * admin: Handle connections that fail protocol detection (linkerd/linkerd2-proxy#960)
olix0r
added a commit
to linkerd/linkerd2
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Mar 30, 2021
This release fixes two issues: 1. The inbound proxy could break non-meshed TLS connections when the initial ClientHello message was larger than 512 bytes or when the entire message was not received in the first data packet of the connection. TLS detection has been fixed to ensure that the entire message is preserved in these cases. 2. The admin server could emit warnings about HTTP detection failing in some innocuous situations, such as when the socket closes before a request is sent. These situations are now handled gracefully without logging warnings. --- * Update MAINTAINERS to point at the main repo (linkerd/linkerd2-proxy#950) * outbound: Configure endpoint construction in logical stack (linkerd/linkerd2-proxy#949) * outbound: Decouple the TCP connect stack from the target type (linkerd/linkerd2-proxy#951) * outbound: Make HTTP endpoint stack generic on its target (linkerd/linkerd2-proxy#952) * outbound: Make the HTTP server stack generic (linkerd/linkerd2-proxy#953) * Update profile response to include a logical address (linkerd/linkerd2-proxy#954) * inbound, outbound: `Param`-ify `listen::Addrs` (linkerd/linkerd2-proxy#955) * tls: Fix inbound I/O when TLS detection fails (linkerd/linkerd2-proxy#958) * tls: Test SNI detection (linkerd/linkerd2-proxy#959) * admin: Handle connections that fail protocol detection (linkerd/linkerd2-proxy#960)
Pothulapati
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to linkerd/linkerd2
that referenced
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Apr 14, 2021
This release fixes two issues: 1. The inbound proxy could break non-meshed TLS connections when the initial ClientHello message was larger than 512 bytes or when the entire message was not received in the first data packet of the connection. TLS detection has been fixed to ensure that the entire message is preserved in these cases. 2. The admin server could emit warnings about HTTP detection failing in some innocuous situations, such as when the socket closes before a request is sent. These situations are now handled gracefully without logging warnings. --- * Update MAINTAINERS to point at the main repo (linkerd/linkerd2-proxy#950) * outbound: Configure endpoint construction in logical stack (linkerd/linkerd2-proxy#949) * outbound: Decouple the TCP connect stack from the target type (linkerd/linkerd2-proxy#951) * outbound: Make HTTP endpoint stack generic on its target (linkerd/linkerd2-proxy#952) * outbound: Make the HTTP server stack generic (linkerd/linkerd2-proxy#953) * Update profile response to include a logical address (linkerd/linkerd2-proxy#954) * inbound, outbound: `Param`-ify `listen::Addrs` (linkerd/linkerd2-proxy#955) * tls: Fix inbound I/O when TLS detection fails (linkerd/linkerd2-proxy#958) * tls: Test SNI detection (linkerd/linkerd2-proxy#959) * admin: Handle connections that fail protocol detection (linkerd/linkerd2-proxy#960)
jijeesh
pushed a commit
to jijeesh/linkerd2
that referenced
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Apr 21, 2021
This release fixes two issues: 1. The inbound proxy could break non-meshed TLS connections when the initial ClientHello message was larger than 512 bytes or when the entire message was not received in the first data packet of the connection. TLS detection has been fixed to ensure that the entire message is preserved in these cases. 2. The admin server could emit warnings about HTTP detection failing in some innocuous situations, such as when the socket closes before a request is sent. These situations are now handled gracefully without logging warnings. --- * Update MAINTAINERS to point at the main repo (linkerd/linkerd2-proxy#950) * outbound: Configure endpoint construction in logical stack (linkerd/linkerd2-proxy#949) * outbound: Decouple the TCP connect stack from the target type (linkerd/linkerd2-proxy#951) * outbound: Make HTTP endpoint stack generic on its target (linkerd/linkerd2-proxy#952) * outbound: Make the HTTP server stack generic (linkerd/linkerd2-proxy#953) * Update profile response to include a logical address (linkerd/linkerd2-proxy#954) * inbound, outbound: `Param`-ify `listen::Addrs` (linkerd/linkerd2-proxy#955) * tls: Fix inbound I/O when TLS detection fails (linkerd/linkerd2-proxy#958) * tls: Test SNI detection (linkerd/linkerd2-proxy#959) * admin: Handle connections that fail protocol detection (linkerd/linkerd2-proxy#960) Signed-off-by: Jijeesh <[email protected]>
kleimkuhler
pushed a commit
to linkerd/linkerd2
that referenced
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May 12, 2021
This release fixes two issues: 1. The inbound proxy could break non-meshed TLS connections when the initial ClientHello message was larger than 512 bytes or when the entire message was not received in the first data packet of the connection. TLS detection has been fixed to ensure that the entire message is preserved in these cases. 2. The admin server could emit warnings about HTTP detection failing in some innocuous situations, such as when the socket closes before a request is sent. These situations are now handled gracefully without logging warnings. --- * Update MAINTAINERS to point at the main repo (linkerd/linkerd2-proxy#950) * outbound: Configure endpoint construction in logical stack (linkerd/linkerd2-proxy#949) * outbound: Decouple the TCP connect stack from the target type (linkerd/linkerd2-proxy#951) * outbound: Make HTTP endpoint stack generic on its target (linkerd/linkerd2-proxy#952) * outbound: Make the HTTP server stack generic (linkerd/linkerd2-proxy#953) * Update profile response to include a logical address (linkerd/linkerd2-proxy#954) * inbound, outbound: `Param`-ify `listen::Addrs` (linkerd/linkerd2-proxy#955) * tls: Fix inbound I/O when TLS detection fails (linkerd/linkerd2-proxy#958) * tls: Test SNI detection (linkerd/linkerd2-proxy#959) * admin: Handle connections that fail protocol detection (linkerd/linkerd2-proxy#960)
kleimkuhler
pushed a commit
to linkerd/linkerd2
that referenced
this pull request
May 12, 2021
This release fixes two issues: 1. The inbound proxy could break non-meshed TLS connections when the initial ClientHello message was larger than 512 bytes or when the entire message was not received in the first data packet of the connection. TLS detection has been fixed to ensure that the entire message is preserved in these cases. 2. The admin server could emit warnings about HTTP detection failing in some innocuous situations, such as when the socket closes before a request is sent. These situations are now handled gracefully without logging warnings. --- * Update MAINTAINERS to point at the main repo (linkerd/linkerd2-proxy#950) * outbound: Configure endpoint construction in logical stack (linkerd/linkerd2-proxy#949) * outbound: Decouple the TCP connect stack from the target type (linkerd/linkerd2-proxy#951) * outbound: Make HTTP endpoint stack generic on its target (linkerd/linkerd2-proxy#952) * outbound: Make the HTTP server stack generic (linkerd/linkerd2-proxy#953) * Update profile response to include a logical address (linkerd/linkerd2-proxy#954) * inbound, outbound: `Param`-ify `listen::Addrs` (linkerd/linkerd2-proxy#955) * tls: Fix inbound I/O when TLS detection fails (linkerd/linkerd2-proxy#958) * tls: Test SNI detection (linkerd/linkerd2-proxy#959) * admin: Handle connections that fail protocol detection (linkerd/linkerd2-proxy#960)
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The HTTP detect module may fail to detect an HTTP protocol if the first
read does not return at least 14 bytes. This has caused spurious
failures as described in linkerd/linkerd2#5672.
This change updates the admin server's protocol detection to handle
these connections as HTTP/1 so that the HTTP server can try to process
them and fail on its own if the connection really is not HTTP.