From mboxrd@z Thu Jan 1 00:00:00 1970 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 AE36D53B3 for ; Wed, 19 Jul 2023 00:50:20 +0000 (UTC) Received: from mail-qk1-x72c.google.com (mail-qk1-x72c.google.com [IPv6:2607:f8b0:4864:20::72c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 253FB1BCF for ; Tue, 18 Jul 2023 17:50:17 -0700 (PDT) Received: by mail-qk1-x72c.google.com with SMTP id af79cd13be357-76571dae5feso589565985a.1 for ; Tue, 18 Jul 2023 17:50:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1689727816; x=1692319816; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=2jDdPbzH4onHNW5mQ+nHZzIsBXIDVnlx9OcaE5Mwsjc=; b=eepobj0Vc1efSCz7ybajZtwpgJ5AghKHP5/txHgJFHHyY4FHoRmuQTm5LGfIesiqT/ PD2ZTDjYtuPJ8w+SRAsKlf9SW1Ib1pYpdFc84jBiO4Y0y16uLALHKiYXgvuGWkyfqOw2 oljI0n/oJhPluX28Ya2d//kILPfh1ZUF/MMYgawk3dKZjJ9oe5nOBGUQyNi8SIIIm7c0 DTD5w9IYzqxsaAfBozvvoYSNWWlOsx0KjrDpjNiA32/Tivs28ml9xEjAwGuMBfpc3bKv z6IhJoR+YcKaXykod/FSL6o2Y+i/IWqmY0UulvwuRxY56EXpN3w9sHfLd323IuK7M8Tu AOgQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689727816; x=1692319816; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=2jDdPbzH4onHNW5mQ+nHZzIsBXIDVnlx9OcaE5Mwsjc=; b=FUBciKbtAfrCZb4tl3M/LuK2bKv4tvj90CyxESG9pYK6QkcQnCAis0X8T9ThLE/Erd 8N5ZDbiGJZFw+8aoGWkIGJ8Ez4EKyhwnFOS85xY/8VSM5OEokCvrEvLoddYhi2nrK/i+ wmLPYcIEhUAXeyxByj/XKBb5/xISppf9tBkYXPuZlrXeD5Lp9jOLkQLMmU/EqRu5M/5Y JvKfvSuPmRuxUNNLWfgQoNOTpIzHeR6gkwl9yrNJ5MbKMm4pvNnYzjKj4XvRfVXRTRP0 JlEaCJ+j5Yt69+7vEroHeUjqJgVBkikSYeplJ4Bsrzdxh9eFTSwLcHg9BY8wSuSx/HFL tdBg== X-Gm-Message-State: ABy/qLYmCWRCi9r+bK0tFKAQFVgmdjweKd3BeUo1b5vW8xe7Kp3+s96B ivGpBQLvOtwPCA9TXR3oAZuYAA== X-Google-Smtp-Source: APBJJlFK4k8p+Ccs+dRT+RZiQ+t53CIizMdNsu9Q4x5KgBks0HqA9n612FswA/1ba47aAoZuL7DUyA== X-Received: by 2002:a05:620a:3998:b0:767:2f4a:e07a with SMTP id ro24-20020a05620a399800b007672f4ae07amr1182364qkn.68.1689727816119; Tue, 18 Jul 2023 17:50:16 -0700 (PDT) Received: from [172.17.0.7] ([130.44.212.112]) by smtp.gmail.com with ESMTPSA id c5-20020a05620a11a500b0076738337cd1sm968696qkk.1.2023.07.18.17.50.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Jul 2023 17:50:15 -0700 (PDT) From: Bobby Eshleman Date: Wed, 19 Jul 2023 00:50:12 +0000 Subject: [PATCH RFC net-next v5 08/14] af_vsock: add vsock_find_bound_dgram_socket() Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20230413-b4-vsock-dgram-v5-8-581bd37fdb26@bytedance.com> References: <20230413-b4-vsock-dgram-v5-0-581bd37fdb26@bytedance.com> In-Reply-To: <20230413-b4-vsock-dgram-v5-0-581bd37fdb26@bytedance.com> To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Bryan Tan , Vishnu Dasa , VMware PV-Drivers Reviewers Cc: Dan Carpenter , Simon Horman , Krasnov Arseniy , kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org, bpf@vger.kernel.org, Bobby Eshleman X-Mailer: b4 0.12.2 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_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net This commit adds vsock_find_bound_dgram_socket() which allows transports to find bound dgram sockets in the global dgram bind table. It is intended to be used for "routing" incoming packets to the correct sockets if the transport uses the global bind table. Signed-off-by: Bobby Eshleman --- include/net/af_vsock.h | 1 + net/vmw_vsock/af_vsock.c | 16 ++++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h index f6a0ca9d7c3e..ae6b6cdf6a4d 100644 --- a/include/net/af_vsock.h +++ b/include/net/af_vsock.h @@ -215,6 +215,7 @@ void vsock_for_each_connected_socket(struct vsock_transport *transport, void (*fn)(struct sock *sk)); int vsock_assign_transport(struct vsock_sock *vsk, struct vsock_sock *psk); bool vsock_find_cid(unsigned int cid); +struct sock *vsock_find_bound_dgram_socket(struct sockaddr_vm *addr); /**** TAP ****/ diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 0895f4c1d340..e73f3b2c52f1 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -264,6 +264,22 @@ static struct sock *vsock_find_bound_socket_common(struct sockaddr_vm *addr, return NULL; } +struct sock * +vsock_find_bound_dgram_socket(struct sockaddr_vm *addr) +{ + struct sock *sk; + + spin_lock_bh(&vsock_dgram_table_lock); + sk = vsock_find_bound_socket_common(addr, vsock_bound_dgram_sockets(addr)); + if (sk) + sock_hold(sk); + + spin_unlock_bh(&vsock_dgram_table_lock); + + return sk; +} +EXPORT_SYMBOL_GPL(vsock_find_bound_dgram_socket); + static struct sock *__vsock_find_bound_socket(struct sockaddr_vm *addr) { return vsock_find_bound_socket_common(addr, vsock_bound_sockets(addr)); -- 2.30.2