From patchwork Wed Jun 14 06:22:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 13279556 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D33142115 for ; Wed, 14 Jun 2023 06:22:28 +0000 (UTC) Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 346131FC9 for ; Tue, 13 Jun 2023 23:22:21 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 782C81FDD8; Wed, 14 Jun 2023 06:22:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1686723740; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=YTMjYHHAGQPuyZsL7/qOC3M5jgcdnJ73CtJafqJiKF4=; b=uT4TuYK677rQq8HFzK9ZExZrtZzpAa+sooL94SrLe9TXvvZYhnLClCGZeHygPKyYZzKi8v 0zQKnfe88dgoI54m+ndTQfApLDZkHCCmjcU+Rs6LnJytDcYxOjtlZFXTUeRV1VGrjna2ln uE8r8pMdM/3CFFR1I0q2c3wM9iDtvu4= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1686723740; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=YTMjYHHAGQPuyZsL7/qOC3M5jgcdnJ73CtJafqJiKF4=; b=uQ0TCmWiK01uBLpCx6Yhmevi+qPAEJneLt3IJf7CXVU4k9EwBR4x9l3IdidEMIGwQxa1eS CWUK7bVpC9s8qvAg== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 5D7912C141; Wed, 14 Jun 2023 06:22:20 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 4ACFE51C4DD9; Wed, 14 Jun 2023 08:22:20 +0200 (CEST) From: Hannes Reinecke To: Christoph Hellwig Cc: Sagi Grimberg , Keith Busch , linux-nvme@lists.infradead.org, Jakub Kicinski , netdev@vger.kernel.org, Hannes Reinecke Subject: [PATCH 1/4] net/tls: handle MSG_EOR for tls_sw TX flow Date: Wed, 14 Jun 2023 08:22:09 +0200 Message-Id: <20230614062212.73288-2-hare@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230614062212.73288-1-hare@suse.de> References: <20230614062212.73288-1-hare@suse.de> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org tls_sw_sendmsg() / tls_do_sw_sendpage() already handles MSG_MORE / MSG_SENDPAGE_NOTLAST, but bails out on MSG_EOR. But seeing that MSG_EOR is basically the opposite of MSG_MORE / MSG_SENDPAGE_NOTLAST this patch adds handling MSG_EOR by treating it as the negation of MSG_MORE. And erroring out if MSG_EOR is specified with either MSG_MORE or MSG_SENDPAGE_NOTLAST. Cc: Jakub Kicinski Cc: netdev@vger.kernel.org Signed-off-by: Hannes Reinecke --- net/tls/tls_sw.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c index 319f61590d2c..47eeff4d7d10 100644 --- a/net/tls/tls_sw.c +++ b/net/tls/tls_sw.c @@ -984,6 +984,9 @@ static int tls_sw_sendmsg_locked(struct sock *sk, struct msghdr *msg, int ret = 0; int pending; + if (!eor && (msg->msg_flags & MSG_EOR)) + return -EINVAL; + if (unlikely(msg->msg_controllen)) { ret = tls_process_cmsg(sk, msg, &record_type); if (ret) { @@ -1193,7 +1196,7 @@ int tls_sw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size) int ret; if (msg->msg_flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL | - MSG_CMSG_COMPAT | MSG_SPLICE_PAGES | + MSG_CMSG_COMPAT | MSG_SPLICE_PAGES | MSG_EOR | MSG_SENDPAGE_NOTLAST | MSG_SENDPAGE_NOPOLICY)) return -EOPNOTSUPP; @@ -1287,7 +1290,7 @@ int tls_sw_sendpage_locked(struct sock *sk, struct page *page, struct bio_vec bvec; struct msghdr msg = { .msg_flags = flags | MSG_SPLICE_PAGES, }; - if (flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL | + if (flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL | MSG_EOR | MSG_SENDPAGE_NOTLAST | MSG_SENDPAGE_NOPOLICY | MSG_NO_SHARED_FRAGS)) return -EOPNOTSUPP;