Merge #1317

1317: test_af_alg_aead waits indefinitely r=asomers a=ritzk

Starting with linux kernel 4.9, the crypto interface changed slightly such that the authentication tag memory is only needed in the output buffer for encryption and in the input buffer for decryption. Thus, we have fewer bytes to read than the buffer size. Do not block on read.

alternatively,  we can adjust the decrypted buffer size based on kernel version ( ">= 4.9") to not include auth_size .
```
     if kernel_version >= "4.9":
         let mut decrypted = vec![0u8; payload_len + (assoc_size as usize) ];
```

before 
```
test sys::test_socket::test_af_alg_aead ... test sys::test_socket::test_af_alg_aead has been running for over 60 seconds
```
after
```
test sys::test_socket::test_af_alg_aead ... ok
```


Co-authored-by: Ritesh Khadgaray <khadgaray@gmail.com>

0 files changed, 0 insertions, 0 deletions