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Code Issues Releases Wiki Activity

selftests: mptcp: make sendfile selftest work

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When the selftest got added, sendfile() on mptcp sockets returned
-EOPNOTSUPP, so running 'mptcp_connect.sh -m sendfile' failed
immediately.

This is no longer the case, but the script fails anyway due to timeout.
Let the receiver know once the sender has sent all data, just like
with '-m mmap' mode.

v2: need to respect cfg_wait too, as pm_userspace.sh relied
on -m sendfile to keep the connection open (Mat Martineau)

Fixes: 048d19d444 ("mptcp: add basic kselftest for mptcp")
Reported-by: Xiumei Mu <xmu@redhat.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Westphal 2022-08-04 17:21:27 -07:00 committed by David S. Miller
parent c886d70286
commit df9e03aec3
1 changed files with 17 additions and 9 deletions
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26
tools/testing/selftests/net/mptcp/mptcp_connect.c
View file

@ -553,6 +553,18 @@ static void set_nonblock(int fd, bool nonblock)
fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);
}
static void shut_wr(int fd)
{
/* Close our write side, ev. give some time
* for address notification and/or checking
* the current status
*/
if (cfg_wait)
usleep(cfg_wait);
shutdown(fd, SHUT_WR);
}
static int copyfd_io_poll(int infd, int peerfd, int outfd, bool *in_closed_after_out)
{
struct pollfd fds = {
@ -630,14 +642,7 @@ static int copyfd_io_poll(int infd, int peerfd, int outfd, bool *in_closed_after
/* ... and peer also closed already */
break;
/* ... but we still receive.
* Close our write side, ev. give some time
* for address notification and/or checking
* the current status
*/
if (cfg_wait)
usleep(cfg_wait);
shutdown(peerfd, SHUT_WR);
shut_wr(peerfd);
} else {
if (errno == EINTR)
continue;
@ -767,7 +772,7 @@ static int copyfd_io_mmap(int infd, int peerfd, int outfd,
if (err)
return err;
shutdown(peerfd, SHUT_WR);
shut_wr(peerfd);
err = do_recvfile(peerfd, outfd);
*in_closed_after_out = true;
@ -791,6 +796,9 @@ static int copyfd_io_sendfile(int infd, int peerfd, int outfd,
err = do_sendfile(infd, peerfd, size);
if (err)
return err;
shut_wr(peerfd);
err = do_recvfile(peerfd, outfd);
*in_closed_after_out = true;
}