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Diffstat (limited to 'examples/ipsec-secgw/ipsec-secgw.c')
-rw-r--r--examples/ipsec-secgw/ipsec-secgw.c108
1 files changed, 91 insertions, 17 deletions
diff --git a/examples/ipsec-secgw/ipsec-secgw.c b/examples/ipsec-secgw/ipsec-secgw.c
index c98454a9..b5ec70a1 100644
--- a/examples/ipsec-secgw/ipsec-secgw.c
+++ b/examples/ipsec-secgw/ipsec-secgw.c
@@ -407,7 +407,8 @@ inbound_sp_sa(struct sp_ctx *sp, struct sa_ctx *sa, struct traffic_type *ip,
}
/* Only check SPI match for processed IPSec packets */
sa_idx = ip->res[i] & PROTECT_MASK;
- if (sa_idx == 0 || !inbound_sa_check(sa, m, sa_idx)) {
+ if (sa_idx >= IPSEC_SA_MAX_ENTRIES ||
+ !inbound_sa_check(sa, m, sa_idx)) {
rte_pktmbuf_free(m);
continue;
}
@@ -472,9 +473,9 @@ outbound_sp(struct sp_ctx *sp, struct traffic_type *ip,
for (i = 0; i < ip->num; i++) {
m = ip->pkts[i];
sa_idx = ip->res[i] & PROTECT_MASK;
- if ((ip->res[i] == 0) || (ip->res[i] & DISCARD))
+ if (ip->res[i] & DISCARD)
rte_pktmbuf_free(m);
- else if (sa_idx != 0) {
+ else if (sa_idx < IPSEC_SA_MAX_ENTRIES) {
ipsec->res[ipsec->num] = sa_idx;
ipsec->pkts[ipsec->num++] = m;
} else /* BYPASS */
@@ -585,31 +586,81 @@ process_pkts_outbound_nosp(struct ipsec_ctx *ipsec_ctx,
traffic->ip6.num = nb_pkts_out;
}
+static inline int32_t
+get_hop_for_offload_pkt(struct rte_mbuf *pkt, int is_ipv6)
+{
+ struct ipsec_mbuf_metadata *priv;
+ struct ipsec_sa *sa;
+
+ priv = get_priv(pkt);
+
+ sa = priv->sa;
+ if (unlikely(sa == NULL)) {
+ RTE_LOG(ERR, IPSEC, "SA not saved in private data\n");
+ goto fail;
+ }
+
+ if (is_ipv6)
+ return sa->portid;
+
+ /* else */
+ return (sa->portid | RTE_LPM_LOOKUP_SUCCESS);
+
+fail:
+ if (is_ipv6)
+ return -1;
+
+ /* else */
+ return 0;
+}
+
static inline void
route4_pkts(struct rt_ctx *rt_ctx, struct rte_mbuf *pkts[], uint8_t nb_pkts)
{
uint32_t hop[MAX_PKT_BURST * 2];
uint32_t dst_ip[MAX_PKT_BURST * 2];
+ int32_t pkt_hop = 0;
uint16_t i, offset;
+ uint16_t lpm_pkts = 0;
if (nb_pkts == 0)
return;
+ /* Need to do an LPM lookup for non-inline packets. Inline packets will
+ * have port ID in the SA
+ */
+
for (i = 0; i < nb_pkts; i++) {
- offset = offsetof(struct ip, ip_dst);
- dst_ip[i] = *rte_pktmbuf_mtod_offset(pkts[i],
- uint32_t *, offset);
- dst_ip[i] = rte_be_to_cpu_32(dst_ip[i]);
+ if (!(pkts[i]->ol_flags & PKT_TX_SEC_OFFLOAD)) {
+ /* Security offload not enabled. So an LPM lookup is
+ * required to get the hop
+ */
+ offset = offsetof(struct ip, ip_dst);
+ dst_ip[lpm_pkts] = *rte_pktmbuf_mtod_offset(pkts[i],
+ uint32_t *, offset);
+ dst_ip[lpm_pkts] = rte_be_to_cpu_32(dst_ip[lpm_pkts]);
+ lpm_pkts++;
+ }
}
- rte_lpm_lookup_bulk((struct rte_lpm *)rt_ctx, dst_ip, hop, nb_pkts);
+ rte_lpm_lookup_bulk((struct rte_lpm *)rt_ctx, dst_ip, hop, lpm_pkts);
+
+ lpm_pkts = 0;
for (i = 0; i < nb_pkts; i++) {
- if ((hop[i] & RTE_LPM_LOOKUP_SUCCESS) == 0) {
+ if (pkts[i]->ol_flags & PKT_TX_SEC_OFFLOAD) {
+ /* Read hop from the SA */
+ pkt_hop = get_hop_for_offload_pkt(pkts[i], 0);
+ } else {
+ /* Need to use hop returned by lookup */
+ pkt_hop = hop[lpm_pkts++];
+ }
+
+ if ((pkt_hop & RTE_LPM_LOOKUP_SUCCESS) == 0) {
rte_pktmbuf_free(pkts[i]);
continue;
}
- send_single_packet(pkts[i], hop[i] & 0xff);
+ send_single_packet(pkts[i], pkt_hop & 0xff);
}
}
@@ -619,26 +670,49 @@ route6_pkts(struct rt_ctx *rt_ctx, struct rte_mbuf *pkts[], uint8_t nb_pkts)
int32_t hop[MAX_PKT_BURST * 2];
uint8_t dst_ip[MAX_PKT_BURST * 2][16];
uint8_t *ip6_dst;
+ int32_t pkt_hop = 0;
uint16_t i, offset;
+ uint16_t lpm_pkts = 0;
if (nb_pkts == 0)
return;
+ /* Need to do an LPM lookup for non-inline packets. Inline packets will
+ * have port ID in the SA
+ */
+
for (i = 0; i < nb_pkts; i++) {
- offset = offsetof(struct ip6_hdr, ip6_dst);
- ip6_dst = rte_pktmbuf_mtod_offset(pkts[i], uint8_t *, offset);
- memcpy(&dst_ip[i][0], ip6_dst, 16);
+ if (!(pkts[i]->ol_flags & PKT_TX_SEC_OFFLOAD)) {
+ /* Security offload not enabled. So an LPM lookup is
+ * required to get the hop
+ */
+ offset = offsetof(struct ip6_hdr, ip6_dst);
+ ip6_dst = rte_pktmbuf_mtod_offset(pkts[i], uint8_t *,
+ offset);
+ memcpy(&dst_ip[lpm_pkts][0], ip6_dst, 16);
+ lpm_pkts++;
+ }
}
- rte_lpm6_lookup_bulk_func((struct rte_lpm6 *)rt_ctx, dst_ip,
- hop, nb_pkts);
+ rte_lpm6_lookup_bulk_func((struct rte_lpm6 *)rt_ctx, dst_ip, hop,
+ lpm_pkts);
+
+ lpm_pkts = 0;
for (i = 0; i < nb_pkts; i++) {
- if (hop[i] == -1) {
+ if (pkts[i]->ol_flags & PKT_TX_SEC_OFFLOAD) {
+ /* Read hop from the SA */
+ pkt_hop = get_hop_for_offload_pkt(pkts[i], 1);
+ } else {
+ /* Need to use hop returned by lookup */
+ pkt_hop = hop[lpm_pkts++];
+ }
+
+ if (pkt_hop == -1) {
rte_pktmbuf_free(pkts[i]);
continue;
}
- send_single_packet(pkts[i], hop[i] & 0xff);
+ send_single_packet(pkts[i], pkt_hop & 0xff);
}
}