Backport Linux changes for proper TCP EOF handling

Notably when remote eagerly sends a RST: we want to return EOF to the
application, not EPIPE.

* pfinet/linux-src/net/ipv4/tcp_output.c (tcp_connect): Set sk->done to 0.
* pfinet/linux-src/net/ipv4/tcp_input.c (tcp_fin): Set RCV_SHUTDOWN, and
sk->done to 1.
* pfinet/linux-src/net/ipv4/tcp.c (tcp_recv_urg): Only return ENOTCONN when
we never actually connect.  Always return 0 when reception is closed.
(tcp_recvmsg): When any data is available, ignore errors and EOF.  When no
data is available, first check for reception being closed, then for errors.

0 files changed, 0 insertions, 0 deletions