From patchwork Wed Jul 19 11:19:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 13318829 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 9222413ACA for ; Wed, 19 Jul 2023 11:19:51 +0000 (UTC) Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 56149E4D; Wed, 19 Jul 2023 04:19:49 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 07B6821B68; Wed, 19 Jul 2023 11:19:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1689765588; 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=gvILd7sk13wwDq+N4D5AU+ZHek+MVfhla4H8J9D8dBw=; b=QKf4rHEgkfF363ZtObP/c36dA/nJbgHoUWelvbsc2cwpDZ/0FV9qx+DIa2du1k6T/HKdbC GsRqnmDkX3bWpqihnCGYzNlSeKGrbUlHF9+mdJAZTeKexlSMv8dweyay5HuJapUIIFZDP7 NlhjNUasOx5dUXV5v3oZua5NfO/2+NA= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1689765588; 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=gvILd7sk13wwDq+N4D5AU+ZHek+MVfhla4H8J9D8dBw=; b=OyBzKnCUPiBWh9ZoyCFDOX60/PyGR9HwJd5z26W2JEZhwaSanOva5puVyh0iT/W/oFEQq7 CF6nxZ1MVF8wO8AA== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id D99B02C143; Wed, 19 Jul 2023 11:19:47 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id CC3EE51C9EBD; Wed, 19 Jul 2023 13:19:47 +0200 (CEST) From: Hannes Reinecke To: Christoph Hellwig Cc: Sagi Grimberg , Keith Busch , linux-nvme@lists.infradead.org, Jakub Kicinski , Eric Dumazet , Paolo Abeni , linux-netdev@vger.kernel.org, Hannes Reinecke , netdev@vger.kernel.org Subject: [PATCH 1/6] net/tls: handle MSG_EOR for tls_sw TX flow Date: Wed, 19 Jul 2023 13:19:39 +0200 Message-Id: <20230719111944.68544-2-hare@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230719111944.68544-1-hare@suse.de> References: <20230719111944.68544-1-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=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, 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() already handles MSG_MORE, but bails out on MSG_EOR. Seeing that MSG_EOR is basically the opposite of MSG_MORE this patch adds handling MSG_EOR by treating it as the negation of MSG_MORE. And erroring out if MSG_EOR is specified with MSG_MORE. Cc: Jakub Kicinski Cc: netdev@vger.kernel.org Signed-off-by: Hannes Reinecke --- net/tls/tls_sw.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c index 53f944e6d8ef..9aef45e870a5 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_NOPOLICY)) return -EOPNOTSUPP; From patchwork Wed Jul 19 11:19:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 13318827 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 2CDDE12B9A for ; Wed, 19 Jul 2023 11:19:50 +0000 (UTC) Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 55BC2189; Wed, 19 Jul 2023 04:19:49 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 07BE51FE95; Wed, 19 Jul 2023 11:19:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1689765588; 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=b6jtiezrHbpPbHdDJAQk+MY/BXvcSOqXXZBiE03yA8s=; b=uuqdpwV9FeWALcVNAde3L7eXYdrXvqJhl1rz3sVG1piYXhEYTQQ8SWtvoX+uz/1pzwyhdn rJz4s+Fp9IoEhuLpLays2e7UWpQPxqzS2EP3Zd90CDaWMuBlymciwvu9/707LmXNFbHte0 BrAv4DdILfZ2O8dDpmBFEf9Om3d8kbU= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1689765588; 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=b6jtiezrHbpPbHdDJAQk+MY/BXvcSOqXXZBiE03yA8s=; b=ecHyuYuDUoPtqAfBIBLmYi2tbF7Tm5wQdtQudGAwIxmW8nyodyKQx2rAJU3t4zEbdvp6Ga 8WZuDgV12PBkrdBA== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id DDD8F2C145; Wed, 19 Jul 2023 11:19:47 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id D485551C9EBF; Wed, 19 Jul 2023 13:19:47 +0200 (CEST) From: Hannes Reinecke To: Christoph Hellwig Cc: Sagi Grimberg , Keith Busch , linux-nvme@lists.infradead.org, Jakub Kicinski , Eric Dumazet , Paolo Abeni , linux-netdev@vger.kernel.org, Hannes Reinecke , netdev@vger.kernel.org Subject: [PATCH 2/6] net/tls: handle MSG_EOR for tls_device TX flow Date: Wed, 19 Jul 2023 13:19:40 +0200 Message-Id: <20230719111944.68544-3-hare@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230719111944.68544-1-hare@suse.de> References: <20230719111944.68544-1-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=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, 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_push_data() MSG_MORE, but bails out on MSG_EOR. Seeing that MSG_EOR is basically the opposite of MSG_MORE this patch adds handling MSG_EOR by treating it as the absence of MSG_MORE. Consequently we should return an error when both are set. Cc: Jakub Kicinski Cc: netdev@vger.kernel.org Signed-off-by: Hannes Reinecke --- net/tls/tls_device.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c index 2021fe557e50..5df18f696d7f 100644 --- a/net/tls/tls_device.c +++ b/net/tls/tls_device.c @@ -441,9 +441,13 @@ static int tls_push_data(struct sock *sk, long timeo; if (flags & - ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL | MSG_SPLICE_PAGES)) + ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL | + MSG_SPLICE_PAGES | MSG_EOR)) return -EOPNOTSUPP; + if ((flags & (MSG_MORE | MSG_EOR)) == (MSG_MORE | MSG_EOR)) + return -EINVAL; + if (unlikely(sk->sk_err)) return -sk->sk_err; From patchwork Wed Jul 19 11:19:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 13318830 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 B88C213ADC for ; Wed, 19 Jul 2023 11:19:51 +0000 (UTC) Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E0E8118D; Wed, 19 Jul 2023 04:19:49 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 24B6C1FE99; Wed, 19 Jul 2023 11:19:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1689765588; 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=o3p0dVCyhrp9NlRfX+MDby+KmQBnRbC+np8nuy9UWz4=; b=YUMq49V0E2XR0Leu4vGXL/OGyhok7YK+BGOqTbH3QDw5/AYRfzwH5+fZH8qL5nWltXEL6z 0q7xsrtFHrCOQgxsK3zhUa2d4PUG0/xEi+uQuzLvVm291yyPFV4qvehSZchbT9lj/7/VoX gw3ejzdCPh2Pbw7oMBBMXOx7Qstdt4I= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1689765588; 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=o3p0dVCyhrp9NlRfX+MDby+KmQBnRbC+np8nuy9UWz4=; b=FsSIinEjJoz9VSVbdFEroG4xqPJCjF1ebhvKAZHRAQFg7PWvAGU+cr3qg5CNyPBntBQh81 Ma+0TUtnQsDrUuAA== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 09B152C14E; Wed, 19 Jul 2023 11:19:48 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 0209651C9EC7; Wed, 19 Jul 2023 13:19:48 +0200 (CEST) From: Hannes Reinecke To: Christoph Hellwig Cc: Sagi Grimberg , Keith Busch , linux-nvme@lists.infradead.org, Jakub Kicinski , Eric Dumazet , Paolo Abeni , linux-netdev@vger.kernel.org, Hannes Reinecke , Boris Pismenny , netdev@vger.kernel.org Subject: [PATCH 6/6] net/tls: implement ->read_sock() Date: Wed, 19 Jul 2023 13:19:44 +0200 Message-Id: <20230719111944.68544-7-hare@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230719111944.68544-1-hare@suse.de> References: <20230719111944.68544-1-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=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, 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 Implement ->read_sock() function for use with nvme-tcp. Signed-off-by: Hannes Reinecke Reviewed-by: Sagi Grimberg Cc: Boris Pismenny Cc: Jakub Kicinski Cc: netdev@vger.kernel.org --- net/tls/tls.h | 2 + net/tls/tls_main.c | 2 + net/tls/tls_sw.c | 96 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 100 insertions(+) diff --git a/net/tls/tls.h b/net/tls/tls.h index 86cef1c68e03..7e4d45537deb 100644 --- a/net/tls/tls.h +++ b/net/tls/tls.h @@ -110,6 +110,8 @@ bool tls_sw_sock_is_readable(struct sock *sk); ssize_t tls_sw_splice_read(struct socket *sock, loff_t *ppos, struct pipe_inode_info *pipe, size_t len, unsigned int flags); +int tls_sw_read_sock(struct sock *sk, read_descriptor_t *desc, + sk_read_actor_t read_actor); int tls_device_sendmsg(struct sock *sk, struct msghdr *msg, size_t size); void tls_device_splice_eof(struct socket *sock); diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c index b6896126bb92..7dbb8cd8f809 100644 --- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -962,10 +962,12 @@ static void build_proto_ops(struct proto_ops ops[TLS_NUM_CONFIG][TLS_NUM_CONFIG] ops[TLS_BASE][TLS_SW ] = ops[TLS_BASE][TLS_BASE]; ops[TLS_BASE][TLS_SW ].splice_read = tls_sw_splice_read; ops[TLS_BASE][TLS_SW ].poll = tls_sk_poll; + ops[TLS_BASE][TLS_SW ].read_sock = tls_sw_read_sock; ops[TLS_SW ][TLS_SW ] = ops[TLS_SW ][TLS_BASE]; ops[TLS_SW ][TLS_SW ].splice_read = tls_sw_splice_read; ops[TLS_SW ][TLS_SW ].poll = tls_sk_poll; + ops[TLS_SW ][TLS_SW ].read_sock = tls_sw_read_sock; #ifdef CONFIG_TLS_DEVICE ops[TLS_HW ][TLS_BASE] = ops[TLS_BASE][TLS_BASE]; diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c index d0636ea13009..4829d2cb9a7c 100644 --- a/net/tls/tls_sw.c +++ b/net/tls/tls_sw.c @@ -2202,6 +2202,102 @@ ssize_t tls_sw_splice_read(struct socket *sock, loff_t *ppos, goto splice_read_end; } +int tls_sw_read_sock(struct sock *sk, read_descriptor_t *desc, + sk_read_actor_t read_actor) +{ + struct tls_context *tls_ctx = tls_get_ctx(sk); + struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx); + struct strp_msg *rxm = NULL; + struct tls_msg *tlm; + struct sk_buff *skb; + struct sk_psock *psock; + ssize_t copied = 0; + bool bpf_strp_enabled; + int err, used; + + psock = sk_psock_get(sk); + err = tls_rx_reader_acquire(sk, ctx, true); + if (err < 0) + goto psock_put; + bpf_strp_enabled = sk_psock_strp_enabled(psock); + + /* If crypto failed the connection is broken */ + err = ctx->async_wait.err; + if (err) + goto read_sock_end; + + do { + if (!skb_queue_empty(&ctx->rx_list)) { + skb = __skb_dequeue(&ctx->rx_list); + rxm = strp_msg(skb); + } else { + struct tls_decrypt_arg darg; + + err = tls_rx_rec_wait(sk, psock, true, true); + if (err <= 0) + goto read_sock_end; + + memset(&darg.inargs, 0, sizeof(darg.inargs)); + darg.zc = !bpf_strp_enabled && ctx->zc_capable; + + rxm = strp_msg(tls_strp_msg(ctx)); + tlm = tls_msg(tls_strp_msg(ctx)); + + /* read_sock does not support reading control messages */ + if (tlm->control != TLS_RECORD_TYPE_DATA) { + err = -EINVAL; + goto read_sock_requeue; + } + + if (!bpf_strp_enabled) + darg.async = ctx->async_capable; + else + darg.async = false; + + err = tls_rx_one_record(sk, NULL, &darg); + if (err < 0) { + tls_err_abort(sk, -EBADMSG); + goto read_sock_end; + } + + sk_flush_backlog(sk); + skb = darg.skb; + rxm = strp_msg(skb); + + tls_rx_rec_done(ctx); + } + + used = read_actor(desc, skb, rxm->offset, rxm->full_len); + if (used <= 0) { + if (!copied) + err = used; + goto read_sock_end; + } + copied += used; + if (used < rxm->full_len) { + rxm->offset += used; + rxm->full_len -= used; + if (!desc->count) + goto read_sock_requeue; + } else { + consume_skb(skb); + if (!desc->count) + skb = NULL; + } + } while (skb); + +read_sock_end: + tls_rx_reader_release(sk, ctx); +psock_put: + if (psock) + sk_psock_put(sk, psock); + return copied ? : err; + +read_sock_requeue: + __skb_queue_head(&ctx->rx_list, skb); + goto read_sock_end; +} + bool tls_sw_sock_is_readable(struct sock *sk) { struct tls_context *tls_ctx = tls_get_ctx(sk);