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The --interface command (CURLOPT_INTERFACE option) already uses SO_BINDTODEVICE on Linux, but it tries to parse it as an interface or IP address first, which fails in case the user passes a VRF. Try to use the socket option immediately and parse it as a fallback instead. Update the documentation to mention this feature, and that it requires the binary to be ran by root or with CAP_NET_RAW capabilities for this to work. Closes #2024
17 lines
555 B
Makefile
17 lines
555 B
Makefile
Long: interface
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Arg: <name>
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Help: Use network INTERFACE (or address)
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See-also: dns-interface
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---
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Perform an operation using a specified interface. You can enter interface
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name, IP address or host name. An example could look like:
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curl --interface eth0:1 https://www.example.com/
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If this option is used several times, the last one will be used.
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On Linux it can be used to specify a VRF, but the binary needs to either
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have CAP_NET_RAW or to be ran as root. More information about Linux VRF:
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https://www.kernel.org/doc/Documentation/networking/vrf.txt
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