Message ID | BY2PR0501MB2119715B6A99DBC61F9D1A9FA2820@BY2PR0501MB2119.namprd05.prod.outlook.com |
---|---|
State | Superseded |
Headers | show |
Hi Shashank, Thanks for reviewing the patch. I will update the commit message and send out a v3 patch. For the other comment, please find my response inline. Thanks, Anand Kumar On 8/16/17, 10:03 AM, "Shashank Ram" <rams@vmware.com> wrote: ________________________________________ From: ovs-dev-bounces@openvswitch.org <ovs-dev-bounces@openvswitch.org> on behalf of Anand Kumar <kumaranand@vmware.com> Sent: Tuesday, August 15, 2017 3:23 PM To: dev@openvswitch.org Subject: [ovs-dev] [PATCH v2] datapath-windows: Update Orig Tuple to use ICMP Type and Code - Also add in some padding for the ct_endpoint's union. >>> Mention in the commit description why this padding is required. Co-authored-by: Sairam Venugopal <vsairam@vmware.com> Signed-off-by: Anand Kumar <kumaranand@vmware.com> --- datapath-windows/ovsext/Conntrack.c | 11 +++++++++-- datapath-windows/ovsext/Conntrack.h | 6 ++++-- 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/datapath-windows/ovsext/Conntrack.c b/datapath-windows/ovsext/Conntrack.c index 917ebee..ce8c1c8 100644 --- a/datapath-windows/ovsext/Conntrack.c +++ b/datapath-windows/ovsext/Conntrack.c @@ -782,9 +782,16 @@ OvsCtExecute_(OvsForwardingContext *fwdCtx, key->ct.tuple_ipv4.ipv4_src = ctKey->src.addr.ipv4_aligned; key->ct.tuple_ipv4.ipv4_dst = ctKey->dst.addr.ipv4_aligned; - key->ct.tuple_ipv4.src_port = ctKey->src.port; - key->ct.tuple_ipv4.dst_port = ctKey->dst.port; key->ct.tuple_ipv4.ipv4_proto = ctKey->nw_proto; + + /* Orig tuple Port is overloaded to take in ICMP-Type & Code */ + /* This mimics the behavior in lib/conntrack.c*/ + key->ct.tuple_ipv4.src_port = ctKey->nw_proto != IPPROTO_ICMP ? + ctKey->src.port : + htons(ctKey->src.icmp_type); + key->ct.tuple_ipv4.dst_port = ctKey->nw_proto != IPPROTO_ICMP ? + ctKey->dst.port : + htons(ctKey->src.icmp_code); } if (entryCreated && entry) { diff --git a/datapath-windows/ovsext/Conntrack.h b/datapath-windows/ovsext/Conntrack.h index 04ca299..bca7d90 100644 --- a/datapath-windows/ovsext/Conntrack.h +++ b/datapath-windows/ovsext/Conntrack.h @@ -41,14 +41,16 @@ struct ct_addr { struct ct_endpoint { struct ct_addr addr; union { - ovs_be16 port; + struct { + ovs_be16 port; + uint16 pad_port; >>> It might be worth to add a comment about why the pad is required, so that if the struct changes later the padding is not forgotten about. [Anand Kumar] : I believe a comment here is not needed, it evident from the variable name. Can add it if it is really required. + }; struct { ovs_be16 icmp_id; uint8_t icmp_type; uint8_t icmp_code; }; }; - UINT16 pad; }; typedef enum CT_UPDATE_RES { -- 2.9.3.windows.1 _______________________________________________
diff --git a/datapath-windows/ovsext/Conntrack.c b/datapath-windows/ovsext/Conntrack.c index 917ebee..ce8c1c8 100644 --- a/datapath-windows/ovsext/Conntrack.c +++ b/datapath-windows/ovsext/Conntrack.c @@ -782,9 +782,16 @@ OvsCtExecute_(OvsForwardingContext *fwdCtx, key->ct.tuple_ipv4.ipv4_src = ctKey->src.addr.ipv4_aligned; key->ct.tuple_ipv4.ipv4_dst = ctKey->dst.addr.ipv4_aligned; - key->ct.tuple_ipv4.src_port = ctKey->src.port; - key->ct.tuple_ipv4.dst_port = ctKey->dst.port; key->ct.tuple_ipv4.ipv4_proto = ctKey->nw_proto; + + /* Orig tuple Port is overloaded to take in ICMP-Type & Code */ + /* This mimics the behavior in lib/conntrack.c*/ + key->ct.tuple_ipv4.src_port = ctKey->nw_proto != IPPROTO_ICMP ? + ctKey->src.port : + htons(ctKey->src.icmp_type); + key->ct.tuple_ipv4.dst_port = ctKey->nw_proto != IPPROTO_ICMP ? + ctKey->dst.port : + htons(ctKey->src.icmp_code); } if (entryCreated && entry) { diff --git a/datapath-windows/ovsext/Conntrack.h b/datapath-windows/ovsext/Conntrack.h index 04ca299..bca7d90 100644 --- a/datapath-windows/ovsext/Conntrack.h +++ b/datapath-windows/ovsext/Conntrack.h @@ -41,14 +41,16 @@ struct ct_addr { struct ct_endpoint { struct ct_addr addr; union { - ovs_be16 port; + struct { + ovs_be16 port; + uint16 pad_port; >>> It might be worth to add a comment about why the pad is required, so that if the struct changes later the padding is not forgotten about. + }; struct { ovs_be16 icmp_id; uint8_t icmp_type; uint8_t icmp_code; }; }; - UINT16 pad; };