diff options
Diffstat (limited to 'net/mptcp/token.c')
| -rw-r--r-- | net/mptcp/token.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/net/mptcp/token.c b/net/mptcp/token.c index 7d8106026081..b25b390dbbff 100644 --- a/net/mptcp/token.c +++ b/net/mptcp/token.c @@ -83,6 +83,18 @@ static bool __token_bucket_busy(struct token_bucket *t, u32 token) __token_lookup_req(t, token) || __token_lookup_msk(t, token); } +static void mptcp_crypto_key_gen_sha(u64 *key, u32 *token, u64 *idsn) +{ + /* we might consider a faster version that computes the key as a + * hash of some information available in the MPTCP socket. Use + * random data at the moment, as it's probably the safest option + * in case multiple sockets are opened in different namespaces at + * the same time. + */ + get_random_bytes(key, sizeof(u64)); + mptcp_crypto_key_sha(*key, token, idsn); +} + /** * mptcp_token_new_request - create new key/idsn/token for subflow_request * @req: the request socket |