From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesse Gross Subject: [PATCH 3/3] openvswitch: Validation of IPv6 set port action uses IPv4 header Date: Mon, 7 May 2012 18:51:25 -0700 Message-ID: <1336441885-11085-4-git-send-email-jesse@nicira.com> References: <1336441885-11085-1-git-send-email-jesse@nicira.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: dev-yBygre7rU0TnMu66kgdUjQ@public.gmane.org, netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: David Miller Return-path: In-Reply-To: <1336441885-11085-1-git-send-email-jesse-l0M0P4e3n4LQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dev-bounces-yBygre7rU0TnMu66kgdUjQ@public.gmane.org Errors-To: dev-bounces-yBygre7rU0TnMu66kgdUjQ@public.gmane.org List-Id: netdev.vger.kernel.org From: Pravin B Shelar When the kernel validates set TCP/UDP port actions, it looks at the ports in the existing flow to make sure that the L4 header exists. However, these actions always use the IPv4 version of the struct. Following patch fixes this by checking for flow ip protocol first. Signed-off-by: Pravin B Shelar Signed-off-by: Jesse Gross --- net/openvswitch/datapath.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index 4cb615d..777716b 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -421,6 +421,19 @@ static int validate_sample(const struct nlattr *attr, return validate_actions(actions, key, depth + 1); } +static int validate_tp_port(const struct sw_flow_key *flow_key) +{ + if (flow_key->eth.type == htons(ETH_P_IP)) { + if (flow_key->ipv4.tp.src && flow_key->ipv4.tp.dst) + return 0; + } else if (flow_key->eth.type == htons(ETH_P_IPV6)) { + if (flow_key->ipv6.tp.src && flow_key->ipv6.tp.dst) + return 0; + } + + return -EINVAL; +} + static int validate_set(const struct nlattr *a, const struct sw_flow_key *flow_key) { @@ -462,18 +475,13 @@ static int validate_set(const struct nlattr *a, if (flow_key->ip.proto != IPPROTO_TCP) return -EINVAL; - if (!flow_key->ipv4.tp.src || !flow_key->ipv4.tp.dst) - return -EINVAL; - - break; + return validate_tp_port(flow_key); case OVS_KEY_ATTR_UDP: if (flow_key->ip.proto != IPPROTO_UDP) return -EINVAL; - if (!flow_key->ipv4.tp.src || !flow_key->ipv4.tp.dst) - return -EINVAL; - break; + return validate_tp_port(flow_key); default: return -EINVAL; -- 1.7.9.5