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authorArthur de Kerhor <arthurdekerhor@gmail.com>2021-09-22 14:53:24 +0200
committerBeno�t Ganne <bganne@cisco.com>2024-03-21 14:38:49 +0000
commit2f4586d9b3507243918c11ce99b9d151d5bde7a0 (patch)
tree8fa05cae8630a0a142fc6218e4d4f5473bdde16e /src/vnet/ipsec/esp_encrypt.c
parentb8cb22318cd5a3135b8a0eb121a4eff4da254f54 (diff)
ip: add support for buffer offload metadata in ip midchain
The offload should be handled by gso node or by the NIC if the latter has the relevant capabilities. But ip midchain is missing the support for buffer offload metadata in case of GSO packet. This patch adds the relevant support to add the buffer metadata if the packet is GSO/IPIP to be handled accordingly. Type: improvement Change-Id: I17f5d71bf4c5f43a85ca3f2fbebfa1426b42ef69 Signed-off-by: Arthur de Kerhor <arthurdekerhor@gmail.com> Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Diffstat (limited to 'src/vnet/ipsec/esp_encrypt.c')
-rw-r--r--src/vnet/ipsec/esp_encrypt.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/src/vnet/ipsec/esp_encrypt.c b/src/vnet/ipsec/esp_encrypt.c
index d3a06dc8786..dd47053874c 100644
--- a/src/vnet/ipsec/esp_encrypt.c
+++ b/src/vnet/ipsec/esp_encrypt.c
@@ -18,6 +18,7 @@
#include <vnet/vnet.h>
#include <vnet/api_errno.h>
#include <vnet/ip/ip.h>
+#include <vnet/interface_output.h>
#include <vnet/crypto/crypto.h>
@@ -148,11 +149,9 @@ esp_update_ip4_hdr (ip4_header_t * ip4, u16 len, int is_transport, int is_udp)
if (is_transport)
{
u8 prot = is_udp ? IP_PROTOCOL_UDP : IP_PROTOCOL_IPSEC_ESP;
-
- sum = ip_csum_update (ip4->checksum, ip4->protocol,
- prot, ip4_header_t, protocol);
+ sum = ip_csum_update (ip4->checksum, ip4->protocol, prot, ip4_header_t,
+ protocol);
ip4->protocol = prot;
-
sum = ip_csum_update (sum, old_len, len, ip4_header_t, length);
}
else
@@ -663,6 +662,10 @@ esp_encrypt_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
CLIB_CACHE_LINE_BYTES, LOAD);
}
+ vnet_calc_checksums_inline (vm, b[0], b[0]->flags & VNET_BUFFER_F_IS_IP4,
+ b[0]->flags & VNET_BUFFER_F_IS_IP6);
+ vnet_calc_outer_checksums_inline (vm, b[0]);
+
if (is_tun)
{
/* we are on a ipsec tunnel's feature arc */