diff options
| author | David Howells <dhowells@redhat.com> | 2023-06-07 19:19:12 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-06-08 19:40:30 -0700 |
| commit | d4c1e80b0d1bacbbca5184f122b9893c5920c598 (patch) | |
| tree | 7c43ae2ca0148883ac725b16e372d5a8486070bf /net/tls/tls_device.c | |
| parent | df720d288dbb1793e82b6ccbfc670ec871e9def4 (diff) | |
tls/device: Use splice_eof() to flush
Allow splice to end a TLS record after prematurely ending a splice/sendfile
due to getting an EOF condition (->splice_read() returned 0) after splice
had called TLS with a sendmsg() with MSG_MORE set when the user didn't set
MSG_MORE.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/CAHk-=wh=V579PDYvkpnTobCLGczbgxpMgGmmhqiTyE34Cpi5Gg@mail.gmail.com/
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
cc: Chuck Lever <chuck.lever@oracle.com>
cc: Boris Pismenny <borisp@nvidia.com>
cc: John Fastabend <john.fastabend@gmail.com>
cc: Jens Axboe <axboe@kernel.dk>
cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/tls/tls_device.c')
| -rw-r--r-- | net/tls/tls_device.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c index 9ef766e41c7a..439be833dcf9 100644 --- a/net/tls/tls_device.c +++ b/net/tls/tls_device.c @@ -590,6 +590,29 @@ out: return rc; } +void tls_device_splice_eof(struct socket *sock) +{ + struct sock *sk = sock->sk; + struct tls_context *tls_ctx = tls_get_ctx(sk); + union tls_iter_offset iter; + struct iov_iter iov_iter = {}; + + if (!tls_is_partially_sent_record(tls_ctx)) + return; + + mutex_lock(&tls_ctx->tx_lock); + lock_sock(sk); + + if (tls_is_partially_sent_record(tls_ctx)) { + iov_iter_bvec(&iov_iter, ITER_SOURCE, NULL, 0, 0); + iter.msg_iter = &iov_iter; + tls_push_data(sk, iter, 0, 0, TLS_RECORD_TYPE_DATA, NULL); + } + + release_sock(sk); + mutex_unlock(&tls_ctx->tx_lock); +} + int tls_device_sendpage(struct sock *sk, struct page *page, int offset, size_t size, int flags) { |