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 8AA5245B69; Fri, 18 Oct 2024 16:08:47 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 8842340E1D; Fri, 18 Oct 2024 16:07:03 +0200 (CEST) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by mails.dpdk.org (Postfix) with ESMTP id 74B6140DFB for ; Fri, 18 Oct 2024 16:07:00 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1729260419; 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=m71erN4JtqxsgB7DSgq48ectkCZlkzFD6GwaRvJ3nyc=; b=hwjfq8EgBHUalqrx6ChXifMUtkAcuwQafk6KMUHjZfeW6x4z+YMlYZvX1Hi3I/cAF+8ydE UtT3o/2C0vR5YB/+7XbwF5Y8Vt/RE8VJH7S+8acHIMb8jRC+hvJ8nH5IscpkwXAFFtaf5N tf9zq2sWEK4fFxlp+X/k7sCRiS297wQ= Received: from mx-prod-mc-03.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-74-YvgG86JkPwqY3261-SU46Q-1; Fri, 18 Oct 2024 10:06:58 -0400 X-MC-Unique: YvgG86JkPwqY3261-SU46Q-1 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (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-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id A2FEC1955EB7 for ; Fri, 18 Oct 2024 14:06:57 +0000 (UTC) Received: from ringo.redhat.com (unknown [10.39.208.23]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id B488219560A3; Fri, 18 Oct 2024 14:06:56 +0000 (UTC) From: Robin Jarry To: dev@dpdk.org Subject: [PATCH dpdk v5 17/17] net: add function to check IPv6 version Date: Fri, 18 Oct 2024 16:05:53 +0200 Message-ID: <20241018140553.79789-18-rjarry@redhat.com> In-Reply-To: <20241018140553.79789-1-rjarry@redhat.com> References: <20240821162516.610624-17-rjarry@redhat.com> <20241018140553.79789-1-rjarry@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 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 Add a function to check the version in IPv6 headers. Signed-off-by: Robin Jarry --- app/test/test_net_ip6.c | 16 ++++++++++++++++ lib/net/rte_ip6.h | 16 ++++++++++++++++ 2 files changed, 32 insertions(+) diff --git a/app/test/test_net_ip6.c b/app/test/test_net_ip6.c index 94033421ad0b..9cc10b1f714f 100644 --- a/app/test/test_net_ip6.c +++ b/app/test/test_net_ip6.c @@ -9,6 +9,21 @@ static const struct rte_ipv6_addr mask_full = RTE_IPV6_MASK_FULL; static const struct rte_ipv6_addr zero_addr = RTE_IPV6_ADDR_UNSPEC; +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) { @@ -167,6 +182,7 @@ 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 12d33034a3f9..25551f6e7414 100644 --- a/lib/net/rte_ip6.h +++ b/lib/net/rte_ip6.h @@ -469,6 +469,22 @@ struct rte_ipv6_hdr { struct rte_ipv6_addr dst_addr; /**< IP address of destination host(s). */ } __rte_packed; +/** + * Check that the IPv6 header version field is valid according to RFC 8200 section 3. + * + * @param ip + * The IPv6 header. + * @return + * @c 0 if the version field is valid. @c -EINVAL otherwise. + */ +static inline int rte_ipv6_check_version(const struct rte_ipv6_hdr *ip) +{ + uint8_t version = ((const uint8_t *)ip)[0]; + if ((version & 0xf0) != 0x60) + return -EINVAL; + return 0; +} + /* IPv6 routing extension type definition. */ #define RTE_IPV6_SRCRT_TYPE_4 4 -- 2.47.0