From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id EE58345A78; Tue, 1 Oct 2024 10:19:51 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 508F940E1F; Tue, 1 Oct 2024 10:18:34 +0200 (CEST) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by mails.dpdk.org (Postfix) with ESMTP id 57ED040DD3 for ; Tue, 1 Oct 2024 10:18:29 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1727770708; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Luf0SMD1ThqdnQA2+qTJwwoaGxQJcwtKVgGoMrHhMok=; b=FNMWtIwUvRQtbMspam8R1fScjkSFj28mMoE5U5XUkU9IEflDVHDw9VW2vYgTXhoXC6Tktk 4Rug9xJ71etNtxI/qYoVy6OH6zLuYwshVGm3fp6mO0ErZv2oID8Ifko76Fc9e2gSQB+hK7 vESG15a1h02NNDj9MXffGEawhxw9TGI= Received: from mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-645-chVjEaHwMRe2VeIj0Kd0VA-1; Tue, 01 Oct 2024 04:18:27 -0400 X-MC-Unique: chVjEaHwMRe2VeIj0Kd0VA-1 Received: from mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (unknown [10.30.177.15]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id C31621953942 for ; Tue, 1 Oct 2024 08:18:26 +0000 (UTC) Received: from ringo.redhat.com (unknown [10.39.208.33]) by mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id C2C211979060; Tue, 1 Oct 2024 08:18:25 +0000 (UTC) From: Robin Jarry To: dev@dpdk.org Subject: [PATCH dpdk v2 16/16] ipv6: add function to check ipv6 version Date: Tue, 1 Oct 2024 10:17:28 +0200 Message-ID: <20241001081728.301272-17-rjarry@redhat.com> In-Reply-To: <20241001081728.301272-1-rjarry@redhat.com> References: <20240821162516.610624-17-rjarry@redhat.com> <20241001081728.301272-1-rjarry@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.15 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org This is a slow path version to verify the version field in IPv6 headers. Signed-off-by: Robin Jarry --- Notes: v2: new patch app/test/test_net_ipv6.c | 16 ++++++++++++++++ lib/net/rte_ip6.h | 17 +++++++++++++++++ 2 files changed, 33 insertions(+) diff --git a/app/test/test_net_ipv6.c b/app/test/test_net_ipv6.c index b087b5c60d73..79a43a2b5491 100644 --- a/app/test/test_net_ipv6.c +++ b/app/test/test_net_ipv6.c @@ -11,6 +11,21 @@ static const struct rte_ipv6_addr bcast_addr = { }; static const struct rte_ipv6_addr zero_addr = { 0 }; +static int +test_ipv6_check_version(void) +{ + struct rte_ipv6_hdr h; + + h.vtc_flow = 0; + TEST_ASSERT_EQUAL(rte_ipv6_check_version(&h), -EINVAL, ""); + h.vtc_flow = RTE_BE32(0x7f00ba44); + TEST_ASSERT_EQUAL(rte_ipv6_check_version(&h), -EINVAL, ""); + h.vtc_flow = RTE_BE32(0x6badcaca); + TEST_ASSERT_EQUAL(rte_ipv6_check_version(&h), 0, ""); + + return 0; +} + static int test_ipv6_addr_mask(void) { @@ -191,6 +206,7 @@ test_ether_mcast_from_ipv6(void) static int test_net_ipv6(void) { + TEST_ASSERT_SUCCESS(test_ipv6_check_version(), ""); TEST_ASSERT_SUCCESS(test_ipv6_addr_mask(), ""); TEST_ASSERT_SUCCESS(test_ipv6_addr_eq_prefix(), ""); TEST_ASSERT_SUCCESS(test_ipv6_addr_kind(), ""); diff --git a/lib/net/rte_ip6.h b/lib/net/rte_ip6.h index c552fa54c095..de3ddc0348c5 100644 --- a/lib/net/rte_ip6.h +++ b/lib/net/rte_ip6.h @@ -323,6 +323,23 @@ struct rte_ipv6_hdr { struct rte_ipv6_addr dst_addr; /**< IP address of destination host(s). */ } __rte_packed; +#define RTE_IPV6_VTC_FLOW_VERSION RTE_BE32(0x60000000) +#define RTE_IPV6_VTC_FLOW_VERSION_MASK RTE_BE32(0xf0000000) + +/** + * Check that the IPv6 header version field is valid according to RFC 8200 section 3. + * + * @return + * 0 if the version field is valid. -EINVAL otherwise. + */ +static inline int rte_ipv6_check_version(const struct rte_ipv6_hdr *ip) +{ + rte_be32_t v = ip->vtc_flow & RTE_IPV6_VTC_FLOW_VERSION_MASK; + if (v != RTE_IPV6_VTC_FLOW_VERSION) + return -EINVAL; + return 0; +} + /* IPv6 routing extension type definition. */ #define RTE_IPV6_SRCRT_TYPE_4 4 -- 2.46.1