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-rw-r--r--src/vnet/CMakeLists.txt1
-rw-r--r--src/vnet/interface_output.c87
-rw-r--r--src/vnet/interface_output.h29
-rw-r--r--src/vnet/ip/ip4_forward.c16
-rw-r--r--src/vnet/ip/ip6_forward.c12
5 files changed, 64 insertions, 81 deletions
diff --git a/src/vnet/CMakeLists.txt b/src/vnet/CMakeLists.txt
index f8948de5d5e..69e041b0d12 100644
--- a/src/vnet/CMakeLists.txt
+++ b/src/vnet/CMakeLists.txt
@@ -56,6 +56,7 @@ list(APPEND VNET_HEADERS
handoff.h
interface.h
interface_funcs.h
+ interface_output.h
ip/ip4_to_ip6.h
ip/ip6_to_ip4.h
ip/ip_types_api.h
diff --git a/src/vnet/interface_output.c b/src/vnet/interface_output.c
index eadee692919..f289fcc489e 100644
--- a/src/vnet/interface_output.c
+++ b/src/vnet/interface_output.c
@@ -38,13 +38,13 @@
*/
#include <vnet/vnet.h>
-#include <vnet/gso/gso.h>
#include <vnet/ip/icmp46_packet.h>
#include <vnet/ip/ip4.h>
#include <vnet/ip/ip6.h>
#include <vnet/udp/udp_packet.h>
#include <vnet/feature/feature.h>
#include <vnet/classify/trace_classify.h>
+#include <vnet/interface_output.h>
typedef struct
{
@@ -159,66 +159,6 @@ vnet_interface_output_trace (vlib_main_t * vm,
}
}
-static_always_inline void
-calc_checksums (vlib_main_t * vm, vlib_buffer_t * b)
-{
- tcp_header_t *th;
- udp_header_t *uh;
- gso_header_offset_t gho = { 0 };
-
- int is_ip4 = (b->flags & VNET_BUFFER_F_IS_IP4) != 0;
- int is_ip6 = (b->flags & VNET_BUFFER_F_IS_IP6) != 0;
-
- ASSERT (!(is_ip4 && is_ip6));
-
- gho = vnet_gso_header_offset_parser (b, is_ip6);
- th = (tcp_header_t *) (vlib_buffer_get_current (b) + gho.l4_hdr_offset);
- uh = (udp_header_t *) (vlib_buffer_get_current (b) + gho.l4_hdr_offset);
-
- if (is_ip4)
- {
- ip4_header_t *ip4;
-
- ip4 =
- (ip4_header_t *) (vlib_buffer_get_current (b) + gho.l3_hdr_offset);
- if (b->flags & VNET_BUFFER_F_OFFLOAD_IP_CKSUM)
- ip4->checksum = ip4_header_checksum (ip4);
- if (b->flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM)
- {
- th->checksum = 0;
- th->checksum = ip4_tcp_udp_compute_checksum (vm, b, ip4);
- }
- else if (b->flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM)
- {
- uh->checksum = 0;
- uh->checksum = ip4_tcp_udp_compute_checksum (vm, b, ip4);
- }
- }
- else if (is_ip6)
- {
- int bogus;
- ip6_header_t *ip6;
-
- ip6 =
- (ip6_header_t *) (vlib_buffer_get_current (b) + gho.l3_hdr_offset);
- if (b->flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM)
- {
- th->checksum = 0;
- th->checksum =
- ip6_tcp_udp_icmp_compute_checksum (vm, b, ip6, &bogus);
- }
- else if (b->flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM)
- {
- uh->checksum = 0;
- uh->checksum =
- ip6_tcp_udp_icmp_compute_checksum (vm, b, ip6, &bogus);
- }
- }
- b->flags &= ~VNET_BUFFER_F_OFFLOAD_TCP_CKSUM;
- b->flags &= ~VNET_BUFFER_F_OFFLOAD_UDP_CKSUM;
- b->flags &= ~VNET_BUFFER_F_OFFLOAD_IP_CKSUM;
-}
-
static_always_inline uword
vnet_interface_output_node_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
@@ -399,10 +339,22 @@ vnet_interface_output_node_inline (vlib_main_t * vm,
VNET_BUFFER_F_OFFLOAD_UDP_CKSUM |
VNET_BUFFER_F_OFFLOAD_IP_CKSUM))
{
- calc_checksums (vm, b[0]);
- calc_checksums (vm, b[1]);
- calc_checksums (vm, b[2]);
- calc_checksums (vm, b[3]);
+ vnet_calc_checksums_inline
+ (vm, b[0],
+ b[0]->flags & VNET_BUFFER_F_IS_IP4,
+ b[0]->flags & VNET_BUFFER_F_IS_IP6, 1 /* with gso */ );
+ vnet_calc_checksums_inline
+ (vm, b[1],
+ b[1]->flags & VNET_BUFFER_F_IS_IP4,
+ b[1]->flags & VNET_BUFFER_F_IS_IP6, 1 /* with gso */ );
+ vnet_calc_checksums_inline
+ (vm, b[2],
+ b[2]->flags & VNET_BUFFER_F_IS_IP4,
+ b[2]->flags & VNET_BUFFER_F_IS_IP6, 1 /* with gso */ );
+ vnet_calc_checksums_inline
+ (vm, b[3],
+ b[3]->flags & VNET_BUFFER_F_IS_IP4,
+ b[3]->flags & VNET_BUFFER_F_IS_IP6, 1 /* with gso */ );
}
}
b += 4;
@@ -450,7 +402,10 @@ vnet_interface_output_node_inline (vlib_main_t * vm,
(VNET_BUFFER_F_OFFLOAD_TCP_CKSUM |
VNET_BUFFER_F_OFFLOAD_UDP_CKSUM |
VNET_BUFFER_F_OFFLOAD_IP_CKSUM))
- calc_checksums (vm, b[0]);
+ vnet_calc_checksums_inline
+ (vm, b[0],
+ b[0]->flags & VNET_BUFFER_F_IS_IP4,
+ b[0]->flags & VNET_BUFFER_F_IS_IP6, 1 /* with gso */ );
}
b += 1;
}
diff --git a/src/vnet/interface_output.h b/src/vnet/interface_output.h
index f1fa4d85b5e..198ca282566 100644
--- a/src/vnet/interface_output.h
+++ b/src/vnet/interface_output.h
@@ -41,24 +41,37 @@
#define __INTERFACE_INLINES_H__
#include <vnet/vnet.h>
+#include <vnet/gso/gso.h>
static_always_inline void
-calc_checksums (vlib_main_t * vm, vlib_buffer_t * b)
+vnet_calc_checksums_inline (vlib_main_t * vm, vlib_buffer_t * b,
+ int is_ip4, int is_ip6, int with_gso)
{
ip4_header_t *ip4;
ip6_header_t *ip6;
tcp_header_t *th;
udp_header_t *uh;
- int is_ip4 = (b->flags & VNET_BUFFER_F_IS_IP4) != 0;
- int is_ip6 = (b->flags & VNET_BUFFER_F_IS_IP6) != 0;
-
ASSERT (!(is_ip4 && is_ip6));
- ip4 = (ip4_header_t *) (b->data + vnet_buffer (b)->l3_hdr_offset);
- ip6 = (ip6_header_t *) (b->data + vnet_buffer (b)->l3_hdr_offset);
- th = (tcp_header_t *) (b->data + vnet_buffer (b)->l4_hdr_offset);
- uh = (udp_header_t *) (b->data + vnet_buffer (b)->l4_hdr_offset);
+ if (with_gso)
+ {
+ gso_header_offset_t gho;
+ gho = vnet_gso_header_offset_parser (b, is_ip6);
+ ip4 = (ip4_header_t *)
+ (vlib_buffer_get_current (b) + gho.l3_hdr_offset);
+ ip6 = (ip6_header_t *)
+ (vlib_buffer_get_current (b) + gho.l3_hdr_offset);
+ th = (tcp_header_t *) (vlib_buffer_get_current (b) + gho.l4_hdr_offset);
+ uh = (udp_header_t *) (vlib_buffer_get_current (b) + gho.l4_hdr_offset);
+ }
+ else
+ {
+ ip4 = (ip4_header_t *) (b->data + vnet_buffer (b)->l3_hdr_offset);
+ ip6 = (ip6_header_t *) (b->data + vnet_buffer (b)->l3_hdr_offset);
+ th = (tcp_header_t *) (b->data + vnet_buffer (b)->l4_hdr_offset);
+ uh = (udp_header_t *) (b->data + vnet_buffer (b)->l4_hdr_offset);
+ }
if (is_ip4)
{
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c
index 4ba0a731006..952915f5317 100644
--- a/src/vnet/ip/ip4_forward.c
+++ b/src/vnet/ip/ip4_forward.c
@@ -2161,7 +2161,9 @@ ip4_rewrite_inline_with_gso (vlib_main_t * vm,
tx_sw_if_index0, &next_index, b[0]);
next[0] = next_index;
if (is_midchain)
- calc_checksums (vm, b[0]);
+ vnet_calc_checksums_inline (vm, b[0], 1 /* is_ip4 */ ,
+ 0 /* is_ip6 */ ,
+ 0 /* with gso */ );
}
else
{
@@ -2183,7 +2185,9 @@ ip4_rewrite_inline_with_gso (vlib_main_t * vm,
tx_sw_if_index1, &next_index, b[1]);
next[1] = next_index;
if (is_midchain)
- calc_checksums (vm, b[1]);
+ vnet_calc_checksums_inline (vm, b[0], 1 /* is_ip4 */ ,
+ 0 /* is_ip6 */ ,
+ 0 /* with gso */ );
}
else
{
@@ -2327,7 +2331,9 @@ ip4_rewrite_inline_with_gso (vlib_main_t * vm,
next[0] = next_index;
if (is_midchain)
- calc_checksums (vm, b[0]);
+ vnet_calc_checksums_inline (vm, b[0], 1 /* is_ip4 */ ,
+ 0 /* is_ip6 */ ,
+ 0 /* with gso */ );
/* Guess we are only writing on simple Ethernet header. */
vnet_rewrite_one_header (adj0[0], ip0, sizeof (ethernet_header_t));
@@ -2426,7 +2432,9 @@ ip4_rewrite_inline_with_gso (vlib_main_t * vm,
if (is_midchain)
/* this acts on the packet that is about to be encapped */
- calc_checksums (vm, b[0]);
+ vnet_calc_checksums_inline (vm, b[0], 1 /* is_ip4 */ ,
+ 0 /* is_ip6 */ ,
+ 0 /* with gso */ );
/* Guess we are only writing on simple Ethernet header. */
vnet_rewrite_one_header (adj0[0], ip0, sizeof (ethernet_header_t));
diff --git a/src/vnet/ip/ip6_forward.c b/src/vnet/ip/ip6_forward.c
index b7cdb1af8bb..9c195e68802 100644
--- a/src/vnet/ip/ip6_forward.c
+++ b/src/vnet/ip/ip6_forward.c
@@ -1859,8 +1859,12 @@ ip6_rewrite_inline_with_gso (vlib_main_t * vm,
{
/* before we paint on the next header, update the L4
* checksums if required, since there's no offload on a tunnel */
- calc_checksums (vm, p0);
- calc_checksums (vm, p1);
+ vnet_calc_checksums_inline (vm, p0, 0 /* is_ip4 */ ,
+ 1 /* is_ip6 */ ,
+ 0 /* with gso */ );
+ vnet_calc_checksums_inline (vm, p1, 0 /* is_ip4 */ ,
+ 1 /* is_ip6 */ ,
+ 0 /* with gso */ );
}
/* Guess we are only writing on simple Ethernet header. */
@@ -1955,7 +1959,9 @@ ip6_rewrite_inline_with_gso (vlib_main_t * vm,
if (is_midchain)
{
- calc_checksums (vm, p0);
+ vnet_calc_checksums_inline (vm, p0, 0 /* is_ip4 */ ,
+ 1 /* is_ip6 */ ,
+ 0 /* with gso */ );
}
/* Guess we are only writing on simple Ethernet header. */