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23bf3cfccb
Rather than hoping that the AF_SYSTEM fd is of type utun, and then calling "2" on it to get the name -- which could be defined as something else for a different AF_SYSTEM socket type -- instead simply query the AF_SYSTEM control socket ID with getpeername. This has one catch, which is that the ID is dynamically allocated, so we resolve it using the qualified name. Normally we'd make a new AF_SYSTEM socket for this, but since that's not allowed in the sandbox, we reuse the AF_SYSTEM socket that we're checking. At this point in the flow, we know that it's a proper AF_SYSTEM one, based on the first sockaddr member; we just don't know that it's a utun variety. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> |
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| Shared | ||
| WireGuardApp | ||
| WireGuardKit | ||
| WireGuardKitC | ||
| WireGuardKitGo | ||
| WireGuardNetworkExtension | ||