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-rw-r--r--VNFs/DPPD-PROX/handle_esp.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/VNFs/DPPD-PROX/handle_esp.c b/VNFs/DPPD-PROX/handle_esp.c
index ebdd2dcf..ab61f66c 100644
--- a/VNFs/DPPD-PROX/handle_esp.c
+++ b/VNFs/DPPD-PROX/handle_esp.c
@@ -309,7 +309,6 @@ static inline uint8_t handle_esp_ah_enc(struct task_esp_enc *task, struct rte_mb
struct ether_addr dst_mac = peth->d_addr;
uint32_t src_addr = pip4->src_addr;
uint32_t dst_addr = pip4->dst_addr;
- uint8_t ttl = pip4->time_to_live;
uint8_t version_ihl = pip4->version_ihl;
peth = (struct ether_hdr *)rte_pktmbuf_prepend(mbuf, extra_space); // encap + prefix
@@ -329,13 +328,14 @@ static inline uint8_t handle_esp_ah_enc(struct task_esp_enc *task, struct rte_mb
pip4 = (struct ipv4_hdr *)(peth + 1);
pip4->src_addr = task->local_ipv4;
pip4->dst_addr = task->remote_ipv4;
- pip4->time_to_live = ttl;
pip4->next_proto_id = IPPROTO_ESP; // 50 for ESP, ip in ip next proto trailer
pip4->version_ihl = version_ihl; // 20 bytes, ipv4
pip4->total_length = rte_cpu_to_be_16(ipv4_length + sizeof(struct ipv4_hdr) + 4 + 4 + CIPHER_IV_LENGTH_AES_CBC + padding + 1 + 1 + DIGEST_BYTE_LENGTH_SHA1); // iphdr+SPI+SN+IV+payload+padding+padlen+next header + crc + auth
pip4->packet_id = 0x0101;
pip4->type_of_service = 0;
pip4->time_to_live = 64;
+ pip4->fragment_offset = rte_cpu_to_be_16(0x4000);
+ pip4->hdr_checksum = 0;
prox_ip_cksum_sw(pip4);
//find the SA when there will be more than one
@@ -458,12 +458,11 @@ static inline uint8_t handle_esp_ah_dec_finish(struct task_esp_dec *task, struct
int len = rte_pktmbuf_pkt_len(mbuf);
rte_pktmbuf_trim(mbuf, len - sizeof (struct ether_hdr) - ipv4_length);
- prox_ip_cksum_sw(pip4);
- peth = rte_pktmbuf_mtod(mbuf, struct ether_hdr *);
-
#if 1
do_ipv4_swap(task, mbuf);
#endif
+ pip4->hdr_checksum = 0;
+ prox_ip_cksum_sw(pip4);
// one key for them all for now
// set key
// struct crypto_aes_ctx ctx;