summaryrefslogtreecommitdiffstats
path: root/src/vnet/tcp
diff options
context:
space:
mode:
authorNeale Ranns <neale@graphiant.com>2022-02-15 09:02:27 +0000
committerNeale Ranns <neale@graphiant.com>2022-02-15 09:02:27 +0000
commitf7040f01a57618c899de8d1feb30bcc70b0a45b9 (patch)
treef23942c61b8a3b8cc496c054d0d2071a85b330c9 /src/vnet/tcp
parentcdaf0d8c884ae0f337ef94b0ceb7449c991a3e6c (diff)
tcp: Do not include the tcp_packet.h file in the ip4_packet.h
Type: refactor IP4 does not depend on TCP (it's the other way around). This upside down dependency leads to some nasty circular includes when trying to use ip46_address.h in interface.h Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I4a1bd21543b08b9c1cf1e5563da738414734a878
Diffstat (limited to 'src/vnet/tcp')
-rw-r--r--src/vnet/tcp/tcp_packet.h97
1 files changed, 96 insertions, 1 deletions
diff --git a/src/vnet/tcp/tcp_packet.h b/src/vnet/tcp/tcp_packet.h
index b0636d871d5..c137ea68108 100644
--- a/src/vnet/tcp/tcp_packet.h
+++ b/src/vnet/tcp/tcp_packet.h
@@ -16,7 +16,8 @@
#ifndef included_tcp_packet_h
#define included_tcp_packet_h
-#include <vnet/vnet.h>
+#include <vnet/ip/ip4_packet.h>
+#include <vnet/ip/ip6_packet.h>
/* TCP flags bit 0 first. */
#define foreach_tcp_flag \
@@ -185,6 +186,100 @@ typedef struct
#define timestamp_lt(_t1, _t2) ((i32)((_t1)-(_t2)) < 0)
#define timestamp_leq(_t1, _t2) ((i32)((_t1)-(_t2)) <= 0)
+always_inline void
+ip4_tcp_reply_x1 (ip4_header_t *ip0, tcp_header_t *tcp0)
+{
+ u32 src0, dst0;
+
+ src0 = ip0->src_address.data_u32;
+ dst0 = ip0->dst_address.data_u32;
+ ip0->src_address.data_u32 = dst0;
+ ip0->dst_address.data_u32 = src0;
+
+ src0 = tcp0->src;
+ dst0 = tcp0->dst;
+ tcp0->src = dst0;
+ tcp0->dst = src0;
+}
+
+always_inline void
+ip4_tcp_reply_x2 (ip4_header_t *ip0, ip4_header_t *ip1, tcp_header_t *tcp0,
+ tcp_header_t *tcp1)
+{
+ u32 src0, dst0, src1, dst1;
+
+ src0 = ip0->src_address.data_u32;
+ src1 = ip1->src_address.data_u32;
+ dst0 = ip0->dst_address.data_u32;
+ dst1 = ip1->dst_address.data_u32;
+ ip0->src_address.data_u32 = dst0;
+ ip1->src_address.data_u32 = dst1;
+ ip0->dst_address.data_u32 = src0;
+ ip1->dst_address.data_u32 = src1;
+
+ src0 = tcp0->src;
+ src1 = tcp1->src;
+ dst0 = tcp0->dst;
+ dst1 = tcp1->dst;
+ tcp0->src = dst0;
+ tcp1->src = dst1;
+ tcp0->dst = src0;
+ tcp1->dst = src1;
+}
+
+always_inline void
+ip6_tcp_reply_x1 (ip6_header_t *ip0, tcp_header_t *tcp0)
+{
+ {
+ ip6_address_t src0, dst0;
+
+ src0 = ip0->src_address;
+ dst0 = ip0->dst_address;
+ ip0->src_address = dst0;
+ ip0->dst_address = src0;
+ }
+
+ {
+ u16 src0, dst0;
+
+ src0 = tcp0->src;
+ dst0 = tcp0->dst;
+ tcp0->src = dst0;
+ tcp0->dst = src0;
+ }
+}
+
+always_inline void
+ip6_tcp_reply_x2 (ip6_header_t *ip0, ip6_header_t *ip1, tcp_header_t *tcp0,
+ tcp_header_t *tcp1)
+{
+ {
+ ip6_address_t src0, dst0, src1, dst1;
+
+ src0 = ip0->src_address;
+ src1 = ip1->src_address;
+ dst0 = ip0->dst_address;
+ dst1 = ip1->dst_address;
+ ip0->src_address = dst0;
+ ip1->src_address = dst1;
+ ip0->dst_address = src0;
+ ip1->dst_address = src1;
+ }
+
+ {
+ u16 src0, dst0, src1, dst1;
+
+ src0 = tcp0->src;
+ src1 = tcp1->src;
+ dst0 = tcp0->dst;
+ dst1 = tcp1->dst;
+ tcp0->src = dst0;
+ tcp1->src = dst1;
+ tcp0->dst = src0;
+ tcp1->dst = src1;
+ }
+}
+
/**
* Parse TCP header options.
*