vsock_proxy: Perform DNS resolution after the expiration of the TTL #593
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Use an enumeration type (IpAddrType) instead of boolean variables to represent different IP address types. Signed-off-by: Erdem Meydanli <[email protected]>
- Create a new module 'dns.rs' to encapsulate DNS-related operations. - Move existing DNS-related functionality into the new 'dns.rs' module. - Rename 'parse_addr' function to 'resolve' for better semantic clarity. Signed-off-by: Erdem Meydanli <[email protected]>
Rename starter.rs module to proxy.rs to better reflect its purpose. Signed-off-by: Erdem Meydanli <[email protected]>
Perform allowlisted hosts' check before creating a Proxy instance and terminate the application if necessary. Signed-off-by: Erdem Meydanli <[email protected]>
The proxy used to resolve the server hostname only once during its startup. This behavior was creating issues where the DNS addresses changed frequently. This commit changes the behavior to resolve DNS each time after the TTL expires. Signed-off-by: Erdem Meydanli <[email protected]>
This commit resolves all errors and warnings that surfaced after upgrading from rustc v1.60 to v1.68.2. Signed-off-by: Erdem Meydanli <[email protected]>
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Modify the signature of `dns::resolve` function to return a `DnsResolveResult` struct instead of a plain vector of IP addresses. Signed-off-by: Erdem Meydanli <[email protected]>
Add tests for the dns module to improve coverage. Signed-off-by: Erdem Meydanli <[email protected]>
Replace the existing DNS lookup implementation with hickory_resolver. This allows accessing additional information from DNS records, such as TTL values, and enhances the functionality of the dns module. Signed-off-by: Erdem Meydanli <[email protected]>
Replace DnsResolveResult with DnsResolutionInfo. The new type includes utility methods and provides a better interface for DNS resolution information, encapsulating resolved IP address, TTL value, and last resolution time. Signed-off-by: Erdem Meydanli <[email protected]>
This commit marks the new release of the vsock_proxy, setting the version to 1.0.0. Signed-off-by: Erdem Meydanli <[email protected]>
This was referenced Apr 11, 2024
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Description of changes: This PR addresses the wrong assumption that domain names are resolved to fixed static IP addresses. With these changes, vsock-proxy periodically refreshes the resolved IP address of the remote host after the Time-To-Live (TTL) expires, ensuring that the most up-to-date IP address is used.
Relevant issues: #553
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