diff options
Diffstat (limited to 'net/tls')
-rw-r--r-- | net/tls/tls_device.c | 92 |
1 files changed, 23 insertions, 69 deletions
diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c index bb3bb523544e..b4864d55900f 100644 --- a/net/tls/tls_device.c +++ b/net/tls/tls_device.c @@ -422,16 +422,10 @@ static int tls_device_copy_data(void *addr, size_t bytes, struct iov_iter *i) return 0; } -union tls_iter_offset { - struct iov_iter *msg_iter; - int offset; -}; - static int tls_push_data(struct sock *sk, - union tls_iter_offset iter_offset, + struct iov_iter *iter, size_t size, int flags, - unsigned char record_type, - struct page *zc_page) + unsigned char record_type) { struct tls_context *tls_ctx = tls_get_ctx(sk); struct tls_prot_info *prot = &tls_ctx->prot_info; @@ -500,22 +494,13 @@ handle_error: record = ctx->open_record; copy = min_t(size_t, size, max_open_record_len - record->len); - if (copy && zc_page) { - struct page_frag zc_pfrag; - - zc_pfrag.page = zc_page; - zc_pfrag.offset = iter_offset.offset; - zc_pfrag.size = copy; - tls_append_frag(record, &zc_pfrag, copy); - - iter_offset.offset += copy; - } else if (copy && (flags & MSG_SPLICE_PAGES)) { + if (copy && (flags & MSG_SPLICE_PAGES)) { struct page_frag zc_pfrag; struct page **pages = &zc_pfrag.page; size_t off; - rc = iov_iter_extract_pages(iter_offset.msg_iter, - &pages, copy, 1, 0, &off); + rc = iov_iter_extract_pages(iter, &pages, + copy, 1, 0, &off); if (rc <= 0) { if (rc == 0) rc = -EIO; @@ -524,7 +509,7 @@ handle_error: copy = rc; if (WARN_ON_ONCE(!sendpage_ok(zc_pfrag.page))) { - iov_iter_revert(iter_offset.msg_iter, copy); + iov_iter_revert(iter, copy); rc = -EIO; goto handle_error; } @@ -537,7 +522,7 @@ handle_error: rc = tls_device_copy_data(page_address(pfrag->page) + pfrag->offset, copy, - iter_offset.msg_iter); + iter); if (rc) goto handle_error; tls_append_frag(record, pfrag, copy); @@ -592,7 +577,6 @@ int tls_device_sendmsg(struct sock *sk, struct msghdr *msg, size_t size) { unsigned char record_type = TLS_RECORD_TYPE_DATA; struct tls_context *tls_ctx = tls_get_ctx(sk); - union tls_iter_offset iter; int rc; if (!tls_ctx->zerocopy_sendfile) @@ -607,8 +591,8 @@ int tls_device_sendmsg(struct sock *sk, struct msghdr *msg, size_t size) goto out; } - iter.msg_iter = &msg->msg_iter; - rc = tls_push_data(sk, iter, size, msg->msg_flags, record_type, NULL); + rc = tls_push_data(sk, &msg->msg_iter, size, msg->msg_flags, + record_type); out: release_sock(sk); @@ -620,8 +604,7 @@ 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 = {}; + struct iov_iter iter = {}; if (!tls_is_partially_sent_record(tls_ctx)) return; @@ -630,9 +613,8 @@ void tls_device_splice_eof(struct socket *sock) 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); + iov_iter_bvec(&iter, ITER_SOURCE, NULL, 0, 0); + tls_push_data(sk, &iter, 0, 0, TLS_RECORD_TYPE_DATA); } release_sock(sk); @@ -642,44 +624,18 @@ void tls_device_splice_eof(struct socket *sock) int tls_device_sendpage(struct sock *sk, struct page *page, int offset, size_t size, int flags) { - struct tls_context *tls_ctx = tls_get_ctx(sk); - union tls_iter_offset iter_offset; - struct iov_iter msg_iter; - char *kaddr; - struct kvec iov; - int rc; + struct bio_vec bvec; + struct msghdr msg = { .msg_flags = flags | MSG_SPLICE_PAGES, }; if (flags & MSG_SENDPAGE_NOTLAST) - flags |= MSG_MORE; - - mutex_lock(&tls_ctx->tx_lock); - lock_sock(sk); + msg.msg_flags |= MSG_MORE; - if (flags & MSG_OOB) { - rc = -EOPNOTSUPP; - goto out; - } - - if (tls_ctx->zerocopy_sendfile) { - iter_offset.offset = offset; - rc = tls_push_data(sk, iter_offset, size, - flags, TLS_RECORD_TYPE_DATA, page); - goto out; - } - - kaddr = kmap(page); - iov.iov_base = kaddr + offset; - iov.iov_len = size; - iov_iter_kvec(&msg_iter, ITER_SOURCE, &iov, 1, size); - iter_offset.msg_iter = &msg_iter; - rc = tls_push_data(sk, iter_offset, size, flags, TLS_RECORD_TYPE_DATA, - NULL); - kunmap(page); + if (flags & MSG_OOB) + return -EOPNOTSUPP; -out: - release_sock(sk); - mutex_unlock(&tls_ctx->tx_lock); - return rc; + bvec_set_page(&bvec, page, size, offset); + iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, &bvec, 1, size); + return tls_device_sendmsg(sk, &msg, size); } struct tls_record_info *tls_get_record(struct tls_offload_context_tx *context, @@ -744,12 +700,10 @@ EXPORT_SYMBOL(tls_get_record); static int tls_device_push_pending_record(struct sock *sk, int flags) { - union tls_iter_offset iter; - struct iov_iter msg_iter; + struct iov_iter iter; - iov_iter_kvec(&msg_iter, ITER_SOURCE, NULL, 0, 0); - iter.msg_iter = &msg_iter; - return tls_push_data(sk, iter, 0, flags, TLS_RECORD_TYPE_DATA, NULL); + iov_iter_kvec(&iter, ITER_SOURCE, NULL, 0, 0); + return tls_push_data(sk, &iter, 0, flags, TLS_RECORD_TYPE_DATA); } void tls_device_write_space(struct sock *sk, struct tls_context *ctx) |