linux.git/include/net/sock.h, branch v5.8-rc2 Linux kernel source tree net: Make locking in sock_bindtoindex optional 2020-06-01T21:57:14+00:00 Ferenc Fejes fejes@inf.elte.hu 2020-05-30T21:09:00+00:00 8ea204c2b658eaef55b4716fde469fb66c589a3d The sock_bindtoindex intended for kernel wide usage however it will lock the socket regardless of the context. This modification relax this behavior optionally: locking the socket will be optional by calling the sock_bindtoindex with lock_sk = true. The modification applied to all users of the sock_bindtoindex. Signed-off-by: Ferenc Fejes <fejes@inf.elte.hu> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/bee6355da40d9e991b2f2d12b67d55ebb5f5b207.1590871065.git.fejes@inf.elte.hu 
The sock_bindtoindex intended for kernel wide usage however
it will lock the socket regardless of the context. This modification
relax this behavior optionally: locking the socket will be optional
by calling the sock_bindtoindex with lock_sk = true.

The modification applied to all users of the sock_bindtoindex.

Signed-off-by: Ferenc Fejes <fejes@inf.elte.hu>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/bee6355da40d9e991b2f2d12b67d55ebb5f5b207.1590871065.git.fejes@inf.elte.hu
net: add a new bind_add method 2020-05-29T20:10:39+00:00 Christoph Hellwig hch@lst.de 2020-05-29T12:09:42+00:00 c0425a4249e9d313eec5f81c0bde8a286ebf9a63 The SCTP protocol allows to bind multiple address to a socket. That feature is currently only exposed as a socket option. Add a bind_add method struct proto that allows to bind additional addresses, and switch the dlm code to use the method instead of going through the socket option from kernel space. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
The SCTP protocol allows to bind multiple address to a socket.  That
feature is currently only exposed as a socket option.  Add a bind_add
method struct proto that allows to bind additional addresses, and
switch the dlm code to use the method instead of going through the
socket option from kernel space.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: add sock_set_reuseport 2020-05-28T18:11:45+00:00 Christoph Hellwig hch@lst.de 2020-05-28T05:12:17+00:00 fe31a326a4aadb4a3ba2b21deacc380d06802737 Add a helper to directly set the SO_REUSEPORT sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net> 
Add a helper to directly set the SO_REUSEPORT sockopt from kernel space
without going through a fake uaccess.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: add sock_set_rcvbuf 2020-05-28T18:11:44+00:00 Christoph Hellwig hch@lst.de 2020-05-28T05:12:16+00:00 26cfabf9cdd273650126d84a48a7f8dedbcded48 Add a helper to directly set the SO_RCVBUFFORCE sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net> 
Add a helper to directly set the SO_RCVBUFFORCE sockopt from kernel space
without going through a fake uaccess.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: add sock_set_keepalive 2020-05-28T18:11:44+00:00 Christoph Hellwig hch@lst.de 2020-05-28T05:12:15+00:00 ce3d9544cecacd40389c399d2b7ca31acc533b70 Add a helper to directly set the SO_KEEPALIVE sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net> 
Add a helper to directly set the SO_KEEPALIVE sockopt from kernel space
without going through a fake uaccess.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: add sock_enable_timestamps 2020-05-28T18:11:44+00:00 Christoph Hellwig hch@lst.de 2020-05-28T05:12:14+00:00 783da70e83967efeacf3c02c9dcfdc2b17bd62eb Add a helper to directly enable timestamps instead of setting the SO_TIMESTAMP* sockopts from kernel space and going through a fake uaccess. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net> 
Add a helper to directly enable timestamps instead of setting the
SO_TIMESTAMP* sockopts from kernel space and going through a fake
uaccess.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: add sock_bindtoindex 2020-05-28T18:11:44+00:00 Christoph Hellwig hch@lst.de 2020-05-28T05:12:13+00:00 7594888c782e735f8a7b110094307a4dbe7b3f03 Add a helper to directly set the SO_BINDTOIFINDEX sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net> 
Add a helper to directly set the SO_BINDTOIFINDEX sockopt from kernel
space without going through a fake uaccess.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: add sock_set_sndtimeo 2020-05-28T18:11:44+00:00 Christoph Hellwig hch@lst.de 2020-05-28T05:12:12+00:00 76ee0785f42afbc0418072b7179d95f450d3c9a8 Add a helper to directly set the SO_SNDTIMEO_NEW sockopt from kernel space without going through a fake uaccess. The interface is simplified to only pass the seconds value, as that is the only thing needed at the moment. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net> 
Add a helper to directly set the SO_SNDTIMEO_NEW sockopt from kernel
space without going through a fake uaccess.  The interface is
simplified to only pass the seconds value, as that is the only
thing needed at the moment.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: add sock_set_priority 2020-05-28T18:11:44+00:00 Christoph Hellwig hch@lst.de 2020-05-28T05:12:11+00:00 6e43496745e75ac49d644df984d2f4ee5b5b6b4e Add a helper to directly set the SO_PRIORITY sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: David S. Miller <davem@davemloft.net> 
Add a helper to directly set the SO_PRIORITY sockopt from kernel space
without going through a fake uaccess.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: add sock_no_linger 2020-05-28T18:11:44+00:00 Christoph Hellwig hch@lst.de 2020-05-28T05:12:10+00:00 c433594c07457d2b2e41a87014bfad9bec279abf Add a helper to directly set the SO_LINGER sockopt from kernel space with onoff set to true and a linger time of 0 without going through a fake uaccess. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: David S. Miller <davem@davemloft.net> 
Add a helper to directly set the SO_LINGER sockopt from kernel space
with onoff set to true and a linger time of 0 without going through a
fake uaccess.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: David S. Miller <davem@davemloft.net>