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authorSoheil Hassas Yeganeh <soheil@google.com>2016-07-11 16:51:26 -0400
committerDavid S. Miller <davem@davemloft.net>2016-07-11 14:32:44 -0700
commit779f1edec664a7b32b71f7b4702e085a08d60592 (patch)
treece41ff39e7f4ae46de19e66ed759cd9ae426e595 /net/bluetooth
parent80610229ef7b26615dbb6cb6e873709a60bacc9f (diff)
sock: ignore SCM_RIGHTS and SCM_CREDENTIALS in __sock_cmsg_send
Sergei Trofimovich reported that pulse audio sends SCM_CREDENTIALS as a control message to TCP. Since __sock_cmsg_send does not support SCM_RIGHTS and SCM_CREDENTIALS, it returns an error and hence breaks pulse audio over TCP. SCM_RIGHTS and SCM_CREDENTIALS are sent on the SOL_SOCKET layer but they semantically belong to SOL_UNIX. Since all cmsg-processing functions including sock_cmsg_send ignore control messages of other layers, it is best to ignore SCM_RIGHTS and SCM_CREDENTIALS for consistency (and also for fixing pulse audio over TCP). Fixes: c14ac9451c34 ("sock: enable timestamping using control messages") Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com> Reported-by: Sergei Trofimovich <slyfox@gentoo.org> Tested-by: Sergei Trofimovich <slyfox@gentoo.org> Cc: Eric Dumazet <edumazet@google.com> Cc: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bluetooth')
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