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authorAlberto Compagno <acompagn+fdio@cisco.com>2020-04-22 18:29:52 +0200
committerAlberto Compagno <acompagn+fdio@cisco.com>2020-05-04 11:32:01 +0200
commitc1b56d5861829a23289f42cecd716e681b520cf0 (patch)
tree05a78211549d5581c4f50f6e9647467cbebe548a /hicn-plugin/src/faces
parent0c7f490009e8633e015b5cba48b78cc243254953 (diff)
[HICN-602] Added bidirectional udp tunnels
- Implemented a udp decapsulation node - Added a hash table to identify the incoming udp tunnel when an interest or data packets are received - Added udp punting through udp_register_dst_port Signed-off-by: Alberto Compagno <acompagn+fdio@cisco.com> Change-Id: Iffea4d81c5ea8ce8ccbbfd749113f06a698a2afe
Diffstat (limited to 'hicn-plugin/src/faces')
-rw-r--r--hicn-plugin/src/faces/app/face_cons.c8
-rw-r--r--hicn-plugin/src/faces/app/face_prod.c11
-rw-r--r--hicn-plugin/src/faces/dpo_face.h32
-rw-r--r--hicn-plugin/src/faces/face.c24
-rw-r--r--hicn-plugin/src/faces/face.h9
-rw-r--r--hicn-plugin/src/faces/face_node.c19
-rw-r--r--hicn-plugin/src/faces/iface_node.c44
7 files changed, 101 insertions, 46 deletions
diff --git a/hicn-plugin/src/faces/app/face_cons.c b/hicn-plugin/src/faces/app/face_cons.c
index 3cd3da78c..d44ba1a2b 100644
--- a/hicn-plugin/src/faces/app/face_cons.c
+++ b/hicn-plugin/src/faces/app/face_cons.c
@@ -57,7 +57,9 @@ hicn_face_cons_add (ip4_address_t * nh_addr4, ip6_address_t * nh_addr6,
ip46_address_t nh_addr = to_ip46 (0, (u8 *) nh_addr4);
- hicn_iface_add (&nh_addr, swif, faceid1, DPO_PROTO_IP4);
+ index_t adj_index = adj_nbr_find(FIB_PROTOCOL_IP4, VNET_LINK_IP4, &nh_addr, swif);
+
+ hicn_iface_add (&nh_addr, swif, faceid1, DPO_PROTO_IP4, adj_index);
hicn_face_t *face = hicn_dpoi_get_from_idx (*faceid1);
face->flags |= HICN_FACE_FLAGS_APPFACE_CONS;
@@ -68,7 +70,9 @@ hicn_face_cons_add (ip4_address_t * nh_addr4, ip6_address_t * nh_addr6,
&(if_ip.ip6),
ADDR_MGR_IP6_CONS_LEN, 0 /* is_del */ );
- hicn_iface_add ((ip46_address_t *) nh_addr6, swif, faceid2, DPO_PROTO_IP6);
+ adj_index = adj_nbr_find(FIB_PROTOCOL_IP6, VNET_LINK_IP6, &nh_addr, swif);
+
+ hicn_iface_add ((ip46_address_t *) nh_addr6, swif, faceid2, DPO_PROTO_IP6, adj_index);
face = hicn_dpoi_get_from_idx (*faceid2);
face->flags |= HICN_FACE_FLAGS_APPFACE_CONS;
diff --git a/hicn-plugin/src/faces/app/face_prod.c b/hicn-plugin/src/faces/app/face_prod.c
index c5b9f93dd..645154325 100644
--- a/hicn-plugin/src/faces/app/face_prod.c
+++ b/hicn-plugin/src/faces/app/face_prod.c
@@ -161,12 +161,16 @@ hicn_face_prod_add (fib_prefix_t * prefix, u32 sw_if, u32 * cs_reserved,
{
return HICN_ERROR_APPFACE_PROD_PREFIX_NULL;
}
+
+ u8 isv6 = ip46_address_is_ip4(prod_addr);
+ index_t adj_index = adj_nbr_find(isv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4, isv6 ? VNET_LINK_IP6 : VNET_LINK_IP4, prod_addr, sw_if);
+
/*
* Check if a producer face is already existing for the same prefix
* and sw_if
*/
face = hicn_face_get (&(prefix->fp_addr), sw_if,
- &hicn_face_hashtb);
+ &hicn_face_hashtb, adj_index);
if (face != NULL)
{
@@ -208,6 +212,8 @@ hicn_face_prod_add (fib_prefix_t * prefix, u32 sw_if, u32 * cs_reserved,
&local_app_ip4, 31, 0 /* is_del */ );
local_app_ip = to_ip46 ( /* isv6 */ 0, local_app_ip4.as_u8);
remote_app_ip = to_ip46 ( /* isv6 */ 0, remote_app_ip4.as_u8);
+
+ vnet_build_rewrite_for_sw_interface(vnm, sw_if, VNET_LINK_IP4, &remote_app_ip4);
}
else
{
@@ -279,7 +285,8 @@ hicn_face_prod_add (fib_prefix_t * prefix, u32 sw_if, u32 * cs_reserved,
hicn_app_state_create (sw_if, prefix);
}
- face = hicn_face_get(&local_app_ip, sw_if, &hicn_face_hashtb);//HICN_FACE_FLAGS_APPFACE_PROD);
+ adj_index = adj_nbr_find(isv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4, isv6 ? VNET_LINK_IP6 : VNET_LINK_IP4, prod_addr, sw_if);
+ face = hicn_face_get(&local_app_ip, sw_if, &hicn_face_hashtb, adj_index);//HICN_FACE_FLAGS_APPFACE_PROD);
*faceid = hicn_dpoi_get_index (face);
diff --git a/hicn-plugin/src/faces/dpo_face.h b/hicn-plugin/src/faces/dpo_face.h
index 736c5c926..3bb99ecdb 100644
--- a/hicn-plugin/src/faces/dpo_face.h
+++ b/hicn-plugin/src/faces/dpo_face.h
@@ -135,7 +135,7 @@ always_inline void
hicn_dpo_iface_ip4_add_and_lock (hicn_face_id_t * index,
u8 * hicnb_flags,
const ip4_address_t * nat_addr,
- u32 sw_if, u32 node_index)
+ u32 sw_if, u32 adj_index, u32 node_index)
{
/*All (complete) faces are indexed by remote addess as well */
@@ -144,29 +144,27 @@ hicn_dpo_iface_ip4_add_and_lock (hicn_face_id_t * index,
/* if the face exists, it adds a lock */
hicn_face_t *face =
- hicn_face_get (&ip_address, sw_if, &hicn_face_hashtb);
+ hicn_face_get (&ip_address, sw_if, &hicn_face_hashtb, adj_index);
if (face == NULL)
{
hicn_face_id_t idx;
- hicn_iface_add (&ip_address, sw_if, &idx, DPO_PROTO_IP4);
+ hicn_iface_add (&ip_address, sw_if, &idx, DPO_PROTO_IP4, adj_index);
face = hicn_dpoi_get_from_idx(idx);
- if (nat_addr->as_u32 == 0)
- {
+ face->dpo.dpoi_type = DPO_FIRST;
+ face->dpo.dpoi_proto = DPO_PROTO_IP4;
+ face->dpo.dpoi_index = adj_index;
+ face->dpo.dpoi_next_node = node_index;
+
+ /* if (nat_addr->as_u32 == 0) */
+ /* { */
adj_nbr_walk(face->sw_if,
FIB_PROTOCOL_IP4,
hicn4_iface_adj_walk_cb,
face);
- }
- else
- {
- face->dpo.dpoi_type = DPO_FIRST;
- face->dpo.dpoi_proto = DPO_PROTO_IP4;
- face->dpo.dpoi_index = ~0;
- face->dpo.dpoi_next_node = node_index;
- }
+ /* } */
*hicnb_flags = HICN_BUFFER_FLAGS_DEFAULT;
@@ -226,23 +224,23 @@ always_inline void
hicn_dpo_iface_ip6_add_and_lock (hicn_face_id_t * index,
u8 * hicnb_flags,
const ip6_address_t * nat_addr,
- u32 sw_if, u32 node_index)
+ u32 sw_if, u32 adj_index, u32 node_index)
{
/*All (complete) faces are indexed by remote addess as well */
/* if the face exists, it adds a lock */
hicn_face_t *face =
- hicn_face_get ((ip46_address_t *)nat_addr, sw_if, &hicn_face_hashtb);
+ hicn_face_get ((ip46_address_t *)nat_addr, sw_if, &hicn_face_hashtb, adj_index);
if (face == NULL)
{
hicn_face_id_t idx;
- hicn_iface_add ((ip46_address_t *) nat_addr, sw_if, &idx, DPO_PROTO_IP6);
+ hicn_iface_add ((ip46_address_t *) nat_addr, sw_if, &idx, DPO_PROTO_IP6, adj_index);
face = hicn_dpoi_get_from_idx(idx);
face->dpo.dpoi_type = DPO_FIRST;
face->dpo.dpoi_proto = DPO_PROTO_IP6;
- face->dpo.dpoi_index = ~0;
+ face->dpo.dpoi_index = adj_index;
face->dpo.dpoi_next_node = node_index;
//if (ip46_address_is_zero((ip46_address_t *)nat_addr))
diff --git a/hicn-plugin/src/faces/face.c b/hicn-plugin/src/faces/face.c
index 652a4a8e2..1abbf8887 100644
--- a/hicn-plugin/src/faces/face.c
+++ b/hicn-plugin/src/faces/face.c
@@ -341,19 +341,19 @@ hicn_iface_to_face(hicn_face_t *face, const dpo_id_t * dpo)
ip46_address_t * nh = &(adj->sub_type.nbr.next_hop);
fib_prefix_t prefix;
- fib_prefix_from_ip46_addr(nh, &prefix);
+ if (!ip46_address_is_zero(nh))
+ {
+ fib_prefix_from_ip46_addr(nh, &prefix);
- u32 fib_index = fib_table_find(prefix.fp_proto, HICN_FIB_TABLE);
+ u32 fib_index = fib_table_find(prefix.fp_proto, HICN_FIB_TABLE);
- face->fib_entry_index = fib_entry_track (fib_index,
- &prefix,
- hicn_face_fib_node_type,
- hicn_dpoi_get_index(face), &face->fib_sibling);
+ face->fib_entry_index = fib_entry_track (fib_index,
+ &prefix,
+ hicn_face_fib_node_type,
+ hicn_dpoi_get_index(face), &face->fib_sibling);
+ }
}
}
-
-
- //adj_child_add(face->dpo.dpoi_index, hicn_face_fib_node_type, hicn_dpoi_get_index(face));
}
/*
@@ -382,16 +382,17 @@ hicn_face_add (const dpo_id_t * dpo_nh, ip46_address_t * nat_address,
face =
hicn_face_get (nat_address, sw_if,
- &hicn_face_hashtb);
+ &hicn_face_hashtb, dpo_nh->dpoi_index);
dpo_id_t temp_dpo = DPO_INVALID;
+ temp_dpo.dpoi_index = dpo_nh->dpoi_index;
hicn_face_key_t key;
hicn_face_get_key (nat_address, sw_if, dpo_nh, &key);
if (face == NULL)
{
- hicn_iface_add (nat_address, sw_if, pfaceid, dpo_nh->dpoi_proto);
+ hicn_iface_add (nat_address, sw_if, pfaceid, dpo_nh->dpoi_proto, dpo_nh->dpoi_index);
face = hicn_dpoi_get_from_idx (*pfaceid);
mhash_set_mem (&hicn_face_hashtb, &key, (uword *) pfaceid,
@@ -411,6 +412,7 @@ hicn_face_add (const dpo_id_t * dpo_nh, ip46_address_t * nat_address,
hicn_iface_to_face(face, dpo_nh);
+ temp_dpo.dpoi_index = ~0;
hicn_face_input_faces_t *in_faces =
hicn_face_get_vec (nat_address, &hicn_face_vec_hashtb);
diff --git a/hicn-plugin/src/faces/face.h b/hicn-plugin/src/faces/face.h
index 54f2eab31..a9a565a5a 100644
--- a/hicn-plugin/src/faces/face.h
+++ b/hicn-plugin/src/faces/face.h
@@ -379,12 +379,14 @@ hicn_face_get_key (const ip46_address_t * addr,
* @result Pointer to the face.
*/
always_inline hicn_face_t *
-hicn_face_get (const ip46_address_t * addr, u32 sw_if, mhash_t * hashtb)
+hicn_face_get (const ip46_address_t * addr, u32 sw_if, mhash_t * hashtb, index_t adj_index)
{
hicn_face_key_t key;
dpo_id_t dpo = DPO_INVALID;
+ dpo.dpoi_index = adj_index;
+
hicn_face_get_key (addr, sw_if, &dpo, &key);
hicn_face_id_t *dpoi_index = (hicn_face_id_t *) mhash_get (hashtb,
@@ -478,7 +480,8 @@ int hicn_face_add (const dpo_id_t * dpo_nh,
*/
always_inline void
hicn_iface_add (ip46_address_t * nat_address, int sw_if,
- hicn_face_id_t * pfaceid, dpo_proto_t proto)
+ hicn_face_id_t * pfaceid, dpo_proto_t proto,
+ u32 adj_index)
{
hicn_face_t *face;
pool_get (hicn_dpoi_face_pool, face);
@@ -489,7 +492,7 @@ hicn_iface_add (ip46_address_t * nat_address, int sw_if,
face->dpo.dpoi_type = DPO_FIRST;
face->dpo.dpoi_proto = DPO_PROTO_NONE;
- face->dpo.dpoi_index = INDEX_INVALID;
+ face->dpo.dpoi_index = adj_index;
face->dpo.dpoi_next_node = 0;
face->pl_id = (u16) 0;
face->flags = HICN_FACE_FLAGS_IFACE;
diff --git a/hicn-plugin/src/faces/face_node.c b/hicn-plugin/src/faces/face_node.c
index a52967dae..5b42f0dde 100644
--- a/hicn-plugin/src/faces/face_node.c
+++ b/hicn-plugin/src/faces/face_node.c
@@ -18,7 +18,6 @@
#include "face.h"
#include "face_node.h"
#include "dpo_face.h"
-//#include "app/face_prod.h"
#include "../strategy_dpo_manager.h"
#include "face.h"
#include "../cache_policies/cs_lru.h"
@@ -465,12 +464,16 @@ VLIB_REGISTER_NODE(hicn6_face_input_node) =
typedef enum
{
HICN4_FACE_OUTPUT_NEXT_ECHO_REPLY,
+ HICN4_FACE_OUTPUT_NEXT_UDP4_ENCAP,
+ HICN4_FACE_OUTPUT_NEXT_UDP6_ENCAP,
HICN4_FACE_OUTPUT_N_NEXT,
} hicn4_face_output_next_t;
typedef enum
{
HICN6_FACE_OUTPUT_NEXT_ECHO_REPLY,
+ HICN6_FACE_OUTPUT_NEXT_UDP4_ENCAP,
+ HICN6_FACE_OUTPUT_NEXT_UDP6_ENCAP,
HICN6_FACE_OUTPUT_N_NEXT,
} hicn6_face_output_next_t;
@@ -563,7 +566,7 @@ hicn_face_rewrite_interest (vlib_main_t * vm, vlib_buffer_t * b0,
ip46_address_reset (&temp_addr);
hicn_type_t type = hicn_get_buffer (b0)->type;
hicn_ops_vft[type.l1]->rewrite_interest (type, &hicn->protocol,
- &face->nat_addr, &temp_addr);
+ &face->nat_addr, &temp_addr);
if (ip46_address_is_ip4(&face->nat_addr))
b0->flags |= VNET_BUFFER_F_OFFLOAD_IP_CKSUM;
@@ -616,7 +619,7 @@ hicn6_face_output_trace_t;
do { \
vlib_buffer_t *b0; \
u32 bi0; \
- u32 next0 = IP_LOOKUP_NEXT_DROP; \
+ u32 next0 = ~0; \
hicn_face_t * face; \
\
/* Prefetch for next iteration. */ \
@@ -678,8 +681,8 @@ hicn6_face_output_trace_t;
do { \
vlib_buffer_t *b0, *b1; \
u32 bi0, bi1; \
- u32 next0 = IP_LOOKUP_NEXT_DROP; \
- u32 next1 = IP_LOOKUP_NEXT_DROP; \
+ u32 next0 = ~0; \
+ u32 next1 = ~0; \
hicn_face_t *face0, *face1; \
\
/* Prefetch for next iteration. */ \
@@ -844,6 +847,8 @@ VLIB_REGISTER_NODE(hicn4_face_output_node) =
.next_nodes =
{
[HICN4_FACE_OUTPUT_NEXT_ECHO_REPLY] = "hicn4-face-input",
+ [HICN4_FACE_OUTPUT_NEXT_UDP4_ENCAP] = "udp4-encap",
+ [HICN4_FACE_OUTPUT_NEXT_UDP6_ENCAP] = "udp6-encap"
}
};
/* *INDENT-ON* */
@@ -920,7 +925,9 @@ VLIB_REGISTER_NODE(hicn6_face_output_node) =
/* Reusing the list of nodes from lookup to be compatible with neighbour discovery */
.next_nodes =
{
- [HICN6_FACE_OUTPUT_NEXT_ECHO_REPLY] = "hicn6-face-input"
+ [HICN6_FACE_OUTPUT_NEXT_ECHO_REPLY] = "hicn6-face-input",
+ [HICN6_FACE_OUTPUT_NEXT_UDP4_ENCAP] = "udp4-encap",
+ [HICN6_FACE_OUTPUT_NEXT_UDP6_ENCAP] = "udp6-encap"
}
};
/* *INDENT-ON* */
diff --git a/hicn-plugin/src/faces/iface_node.c b/hicn-plugin/src/faces/iface_node.c
index fbc573088..d42d0114e 100644
--- a/hicn-plugin/src/faces/iface_node.c
+++ b/hicn-plugin/src/faces/iface_node.c
@@ -135,6 +135,8 @@ typedef struct
typedef enum
{
HICN4_IFACE_OUTPUT_NEXT_LOOKUP,
+ HICN4_IFACE_OUTPUT_NEXT_UDP4_ENCAP,
+ HICN4_IFACE_OUTPUT_NEXT_UDP6_ENCAP,
HICN4_IFACE_OUTPUT_N_NEXT,
} hicn4_iface_output_next_t;
@@ -150,6 +152,8 @@ typedef struct
typedef enum
{
HICN6_IFACE_OUTPUT_NEXT_LOOKUP,
+ HICN6_IFACE_OUTPUT_NEXT_UDP4_ENCAP,
+ HICN6_IFACE_OUTPUT_NEXT_UDP6_ENCAP,
HICN6_IFACE_OUTPUT_N_NEXT,
} hicn6_iface_output_next_t;
@@ -159,6 +163,9 @@ typedef enum
#define NEXT_DATA_LOOKUP_IP4 HICN4_IFACE_OUTPUT_NEXT_LOOKUP
#define NEXT_DATA_LOOKUP_IP6 HICN6_IFACE_OUTPUT_NEXT_LOOKUP
+#define NEXT_UDP_ENCAP_IP4 HICN4_IFACE_OUTPUT_NEXT_UDP4_ENCAP
+#define NEXT_UDP_ENCAP_IP6 HICN6_IFACE_OUTPUT_NEXT_UDP6_ENCAP
+
#define HICN_REWRITE_DATA_IP4 hicn_rewrite_iface_data4
#define HICN_REWRITE_DATA_IP6 hicn_rewrite_iface_data6
@@ -170,7 +177,7 @@ typedef enum
#define iface_input_x1(ipv) \
do { \
vlib_buffer_t *b0; \
- u32 bi0, next0; \
+ u32 bi0, next0, next_iface0; \
IP_HEADER_##ipv * ip_hdr = NULL; \
hicn_buffer_t * hicnb0; \
/* Prefetch for next iteration. */ \
@@ -200,13 +207,20 @@ typedef enum
next0 = is_icmp*NEXT_MAPME_IP##ipv + \
(1-is_icmp)*NEXT_INTEREST_IP##ipv; \
\
+ next_iface0 = NEXT_DATA_LOOKUP_IP##ipv; \
+ \
+ if (hicnb0->flags & HICN_BUFFER_FLAGS_FROM_UDP4_TUNNEL) \
+ next_iface0 = NEXT_UDP_ENCAP_IP4; \
+ else if(hicnb0->flags & HICN_BUFFER_FLAGS_FROM_UDP6_TUNNEL) \
+ next_iface0 = NEXT_UDP_ENCAP_IP6; \
\
DPO_ADD_LOCK_IFACE_IP##ipv \
(&(hicnb0->face_id), \
&hicnb0->flags, \
&(ip_hdr->src_address), \
vnet_buffer(b0)->sw_if_index[VLIB_RX], \
- NEXT_DATA_LOOKUP_IP##ipv); \
+ vnet_buffer(b0)->ip.adj_index[VLIB_RX], \
+ next_iface0); \
\
if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \
(b0->flags & VLIB_BUFFER_IS_TRACED))) \
@@ -239,7 +253,7 @@ typedef enum
#define iface_input_x2(ipv) \
do { \
vlib_buffer_t *b0, *b1; \
- u32 bi0, bi1, next0, next1; \
+ u32 bi0, bi1, next0, next1, next_iface0, next_iface1; \
IP_HEADER_##ipv * ip_hdr0 = NULL; \
IP_HEADER_##ipv * ip_hdr1 = NULL; \
hicn_buffer_t *hicnb0, *hicnb1; \
@@ -281,20 +295,35 @@ typedef enum
next1 = is_icmp1*NEXT_MAPME_IP##ipv + \
(1-is_icmp1)*NEXT_INTEREST_IP##ipv; \
\
+ next_iface0 = NEXT_DATA_LOOKUP_IP##ipv; \
+ \
+ if (hicnb0->flags & HICN_BUFFER_FLAGS_FROM_UDP4_TUNNEL) \
+ next_iface0 = NEXT_UDP_ENCAP_IP4; \
+ else if(hicnb0->flags & HICN_BUFFER_FLAGS_FROM_UDP6_TUNNEL) \
+ next_iface0 = NEXT_UDP_ENCAP_IP6; \
\
+ next_iface1 = NEXT_DATA_LOOKUP_IP##ipv; \
+ \
+ if (hicnb1->flags & HICN_BUFFER_FLAGS_FROM_UDP4_TUNNEL) \
+ next_iface1 = NEXT_UDP_ENCAP_IP4; \
+ else if(hicnb1->flags & HICN_BUFFER_FLAGS_FROM_UDP6_TUNNEL) \
+ next_iface1 = NEXT_UDP_ENCAP_IP6; \
+ \
DPO_ADD_LOCK_IFACE_IP##ipv \
(&(hicnb0->face_id), \
&hicnb0->flags, \
&(ip_hdr0->src_address), \
vnet_buffer(b0)->sw_if_index[VLIB_RX], \
- NEXT_DATA_LOOKUP_IP##ipv); \
+ vnet_buffer(b0)->ip.adj_index[VLIB_RX], \
+ next_iface0); \
\
DPO_ADD_LOCK_IFACE_IP##ipv \
(&(hicnb1->face_id), \
&hicnb1->flags, \
&(ip_hdr1->src_address), \
vnet_buffer(b1)->sw_if_index[VLIB_RX], \
- NEXT_DATA_LOOKUP_IP##ipv); \
+ vnet_buffer(b1)->ip.adj_index[VLIB_RX], \
+ next_iface1); \
\
if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \
(b0->flags & VLIB_BUFFER_IS_TRACED))) \
@@ -794,6 +823,8 @@ VLIB_REGISTER_NODE (hicn4_iface_output_node) =
.next_nodes =
{
[HICN4_IFACE_OUTPUT_NEXT_LOOKUP] = "ip4-lookup",
+ [HICN4_IFACE_OUTPUT_NEXT_UDP4_ENCAP] = "udp4-encap",
+ [HICN4_IFACE_OUTPUT_NEXT_UDP6_ENCAP] = "udp6-encap"
},
};
/* *INDENT-ON* */
@@ -869,6 +900,9 @@ VLIB_REGISTER_NODE (hicn6_iface_output_node) =
.next_nodes =
{
[HICN6_IFACE_OUTPUT_NEXT_LOOKUP] = "ip6-lookup",
+ [HICN6_IFACE_OUTPUT_NEXT_UDP4_ENCAP] = "udp4-encap",
+ [HICN6_IFACE_OUTPUT_NEXT_UDP6_ENCAP] = "udp6-encap"
+
},
};
/* *INDENT-ON* */