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authorDavid Howells <dhowells@redhat.com>2023-06-07 19:19:14 +0100
committerJakub Kicinski <kuba@kernel.org>2023-06-08 19:40:31 -0700
commitc289a1601abd7313ef08ec13184df385cfb4d388 (patch)
treef83a101f56a8ca8579b5bb7da8038a603a435da7 /drivers/net/ethernet/chelsio
parent1d7e4538a5463faa0b0e26a7a7b6bd68c7dfdd78 (diff)
chelsio/chtls: Use splice_eof() to flush
Allow splice to end a Chelsio TLS record after prematurely ending a splice/sendfile due to getting an EOF condition (->splice_read() returned 0) after splice had called 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> cc: Ayush Sawal <ayush.sawal@chelsio.com> cc: Jens Axboe <axboe@kernel.dk> cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/chelsio')
-rw-r--r--drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h1
-rw-r--r--drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c9
-rw-r--r--drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_main.c1
3 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h
index 41714203ace8..da4818d2c856 100644
--- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h
+++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h
@@ -568,6 +568,7 @@ void chtls_destroy_sock(struct sock *sk);
int chtls_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);
int chtls_recvmsg(struct sock *sk, struct msghdr *msg,
size_t len, int flags, int *addr_len);
+void chtls_splice_eof(struct socket *sock);
int chtls_sendpage(struct sock *sk, struct page *page,
int offset, size_t size, int flags);
int send_tx_flowc_wr(struct sock *sk, int compl,
diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
index 5724bbbb6ee0..e08ac960c967 100644
--- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
+++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
@@ -1237,6 +1237,15 @@ out_err:
goto done;
}
+void chtls_splice_eof(struct socket *sock)
+{
+ struct sock *sk = sock->sk;
+
+ lock_sock(sk);
+ chtls_tcp_push(sk, 0);
+ release_sock(sk);
+}
+
int chtls_sendpage(struct sock *sk, struct page *page,
int offset, size_t size, int flags)
{
diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_main.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_main.c
index 1e55b12fee51..6b6787eafd2f 100644
--- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_main.c
+++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_main.c
@@ -606,6 +606,7 @@ static void __init chtls_init_ulp_ops(void)
chtls_cpl_prot.destroy = chtls_destroy_sock;
chtls_cpl_prot.shutdown = chtls_shutdown;
chtls_cpl_prot.sendmsg = chtls_sendmsg;
+ chtls_cpl_prot.splice_eof = chtls_splice_eof;
chtls_cpl_prot.sendpage = chtls_sendpage;
chtls_cpl_prot.recvmsg = chtls_recvmsg;
chtls_cpl_prot.setsockopt = chtls_setsockopt;