kernel/linux.git/net/rxrpc/ar-input.c, branch linux-4.7.y

net: udp: rename UDP_INC_STATS_BH()

2016-04-28T02:48:23+00:00

Rename UDP_INC_STATS_BH() to __UDP_INC_STATS(), and UDP6_INC_STATS_BH() to __UDP6_INC_STATS() Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

rxrpc: Create a null security type and get rid of conditional calls

2016-04-11T19:34:41+00:00

Create a null security type for security index 0 and get rid of all conditional calls to the security operations. We expect normally to be using security, so this should be of little negative impact. Signed-off-by: David Howells Signed-off-by: David S. Miller

rxrpc: Differentiate local and remote abort codes in structs

2016-04-11T19:34:40+00:00

In the rxrpc_connection and rxrpc_call structs, there's one field to hold the abort code, no matter whether that value was generated locally to be sent or was received from the peer via an abort packet. Split the abort code fields in two for cleanliness sake and add an error field to hold the Linux error number to the rxrpc_call struct too (sometimes this is generated in a context where we can't return it to userspace directly). Furthermore, add a skb mark to indicate a packet that caused a local abort to be generated so that recvmsg() can pick up the correct abort code. A future addition will need to be to indicate to userspace the difference between aborts via a control message. Signed-off-by: David Howells Signed-off-by: David S. Miller

rxrpc: Move some miscellaneous bits out into their own file

2016-04-11T19:34:40+00:00

Move some miscellaneous bits out into their own file to make it easier to split the call handling. Signed-off-by: David Howells Signed-off-by: David S. Miller

rxrpc: do not pull udp headers on receive

2016-04-11T19:31:33+00:00

Commit e6afc8ace6dd modified the udp receive path by pulling the udp header before queuing an skbuff onto the receive queue. Rxrpc also calls skb_recv_datagram to dequeue an skb from a udp socket. Modify this receive path to also no longer expect udp headers. Fixes: e6afc8ace6dd ("udp: remove headers from UDP packets before queueing") Signed-off-by: Willem de Bruijn Tested-by: Thierry Reding Signed-off-by: David S. Miller

rxrpc: Be more selective about the types of received packets we accept

2016-03-04T15:56:06+00:00

Currently, received RxRPC packets outside the range 1-13 are rejected. There are, however, holes in the range that should also be rejected - plus at least one type we don't yet support - so reject these also. Signed-off-by: David Howells

rxrpc: Keep the skb private record of the Rx header in host byte order

2016-03-04T15:53:46+00:00

Currently, a copy of the Rx packet header is copied into the the sk_buff private data so that we can advance the pointer into the buffer, potentially discarding the original. At the moment, this copy is held in network byte order, but this means we're doing a lot of unnecessary translations. The reasons it was done this way are that we need the values in network byte order occasionally and we can use the copy, slightly modified, as part of an iov array when sending an ack or an abort packet. However, it seems more reasonable on review that it would be better kept in host byte order and that we make up a new header when we want to send another packet. To this end, rename the original header struct to rxrpc_wire_header (with BE fields) and institute a variant called rxrpc_host_header that has host order fields. Change the struct in the sk_buff private data into an rxrpc_host_header and translate the values when filling it in. This further allows us to keep values kept in various structures in host byte order rather than network byte order and allows removal of some fields that are byteswapped duplicates. Signed-off-by: David Howells

rxrpc: Rename call events to begin RXRPC_CALL_EV_

2016-03-04T15:53:46+00:00

Rename call event names to begin RXRPC_CALL_EV_ to distinguish them from the flags. Signed-off-by: David Howells

RxRPC: Handle VERSION Rx protocol packets

2015-04-01T15:31:26+00:00

Handle VERSION Rx protocol packets. We should respond to a VERSION packet with a string indicating the Rx version. This is a maximum of 64 characters and is padded out to 65 chars with NUL bytes. Note that other AFS clients use the version request as a NAT keepalive so we need to handle it rather than returning an abort. The standard formulation seems to be: built --

for example: " OpenAFS 1.6.2 built 2013-05-07 " (note the three extra spaces) as obtained with: rxdebug grand.mit.edu -version from the openafs package. Signed-off-by: David Howells

net: remove dead code after sk_data_ready change

2014-08-23T04:08:50+00:00

As a followup to commit 676d23690fb ("net: Fix use after free by removing length arg from sk_data_ready callbacks"), we can remove some useless code in sock_queue_rcv_skb() and rxrpc_queue_rcv_skb() Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller