diff options
| author | Willem de Bruijn <willemb@google.com> | 2019-11-18 10:40:51 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-11-19 15:03:02 -0800 |
| commit | d4ffb02dee2fcb20e0c8086a8d1305bf885820bb (patch) | |
| tree | 13860fc65238986228ef7e1fc98bf6cc707db7c8 /net/tls/tls_sw.c | |
| parent | db96c2cb4870173ea9b08df130f1d1cc9b5dd53d (diff) | |
net/tls: enable sk_msg redirect to tls socket egress
Bring back tls_sw_sendpage_locked. sk_msg redirection into a socket
with TLS_TX takes the following path:
tcp_bpf_sendmsg_redir
tcp_bpf_push_locked
tcp_bpf_push
kernel_sendpage_locked
sock->ops->sendpage_locked
Also update the flags test in tls_sw_sendpage_locked to allow flag
MSG_NO_SHARED_FRAGS. bpf_tcp_sendmsg sets this.
Link: https://lore.kernel.org/netdev/CA+FuTSdaAawmZ2N8nfDDKu3XLpXBbMtcCT0q4FntDD2gn8ASUw@mail.gmail.com/T/#t
Link: https://github.com/wdebruij/kerneltools/commits/icept.2
Fixes: 0608c69c9a80 ("bpf: sk_msg, sock{map|hash} redirect through ULP")
Fixes: f3de19af0f5b ("Revert \"net/tls: remove unused function tls_sw_sendpage_locked\"")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tls/tls_sw.c')
| -rw-r--r-- | net/tls/tls_sw.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c index 446f23c1f3ce..319735d5c084 100644 --- a/net/tls/tls_sw.c +++ b/net/tls/tls_sw.c @@ -1204,6 +1204,17 @@ sendpage_end: return copied ? copied : ret; } +int tls_sw_sendpage_locked(struct sock *sk, struct page *page, + int offset, size_t size, int flags) +{ + if (flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL | + MSG_SENDPAGE_NOTLAST | MSG_SENDPAGE_NOPOLICY | + MSG_NO_SHARED_FRAGS)) + return -ENOTSUPP; + + return tls_sw_do_sendpage(sk, page, offset, size, flags); +} + int tls_sw_sendpage(struct sock *sk, struct page *page, int offset, size_t size, int flags) { |