*/
#include <nat/nat64.h>
+#include <nat/nat_inlines.h>
#include <vnet/ip/ip6_to_ip4.h>
#include <vnet/fib/fib_table.h>
return s;
}
-vlib_node_registration_t nat64_in2out_node;
-vlib_node_registration_t nat64_in2out_slowpath_node;
+#define foreach_nat64_in2out_error \
+_(UNSUPPORTED_PROTOCOL, "unsupported protocol") \
+_(IN2OUT_PACKETS, "good in2out packets processed") \
+_(NO_TRANSLATION, "no translation") \
+_(UNKNOWN, "unknown") \
+_(DROP_FRAGMENT, "drop fragment") \
+_(TCP_PACKETS, "TCP packets") \
+_(UDP_PACKETS, "UDP packets") \
+_(ICMP_PACKETS, "ICMP packets") \
+_(OTHER_PACKETS, "other protocol packets") \
+_(FRAGMENTS, "fragments") \
+_(CACHED_FRAGMENTS, "cached fragments") \
+_(PROCESSED_FRAGMENTS, "processed fragments")
-#define foreach_nat64_in2out_error \
-_(UNSUPPORTED_PROTOCOL, "unsupported protocol") \
-_(IN2OUT_PACKETS, "good in2out packets processed") \
-_(NO_TRANSLATION, "no translation") \
-_(UNKNOWN, "unknown")
typedef enum
{
{
vlib_buffer_t *b;
vlib_main_t *vm;
+ u32 thread_index;
} nat64_in2out_set_ctx_t;
+static inline u8
+nat64_not_translate (u32 sw_if_index, ip6_address_t ip6_addr)
+{
+ ip6_address_t *addr;
+ ip6_main_t *im6 = &ip6_main;
+ ip_lookup_main_t *lm6 = &im6->lookup_main;
+ ip_interface_address_t *ia = 0;
+
+ /* *INDENT-OFF* */
+ foreach_ip_interface_address (lm6, ia, sw_if_index, 0,
+ ({
+ addr = ip_interface_address_get_address (lm6, ia);
+ if (0 == ip6_address_compare (addr, &ip6_addr))
+ return 1;
+ }));
+ /* *INDENT-ON* */
+
+ return 0;
+}
+
/**
* @brief Check whether is a hairpinning.
*
}
static int
-nat64_in2out_tcp_udp_set_cb (ip6_header_t * ip6, ip4_header_t * ip4,
- void *arg)
+nat64_in2out_tcp_udp (vlib_main_t * vm, vlib_buffer_t * p, u16 l4_offset,
+ u16 frag_hdr_offset, nat64_in2out_set_ctx_t * ctx)
{
+ ip6_header_t *ip6;
+ ip_csum_t csum = 0;
+ ip4_header_t *ip4;
+ u16 fragment_id;
+ u8 frag_more;
+ u16 frag_offset;
nat64_main_t *nm = &nat64_main;
- nat64_in2out_set_ctx_t *ctx = arg;
nat64_db_bib_entry_t *bibe;
nat64_db_st_entry_t *ste;
- ip46_address_t saddr, daddr;
+ ip46_address_t old_saddr, old_daddr;
+ ip4_address_t new_daddr;
u32 sw_if_index, fib_index;
- udp_header_t *udp = ip6_next_header (ip6);
- u8 proto = ip6->protocol;
- u16 sport = udp->src_port;
- u16 dport = udp->dst_port;
+ u8 proto = vnet_buffer (p)->ip.reass.ip_proto;
+ u16 sport = vnet_buffer (p)->ip.reass.l4_src_port;
+ u16 dport = vnet_buffer (p)->ip.reass.l4_dst_port;
+ nat64_db_t *db = &nm->db[ctx->thread_index];
+
+ ip6 = vlib_buffer_get_current (p);
+
+ vlib_buffer_advance (p, l4_offset - sizeof (*ip4));
+ ip4 = vlib_buffer_get_current (p);
+
+ u32 ip_version_traffic_class_and_flow_label =
+ ip6->ip_version_traffic_class_and_flow_label;
+ u16 payload_length = ip6->payload_length;
+ u8 hop_limit = ip6->hop_limit;
+
+ old_saddr.as_u64[0] = ip6->src_address.as_u64[0];
+ old_saddr.as_u64[1] = ip6->src_address.as_u64[1];
+ old_daddr.as_u64[0] = ip6->dst_address.as_u64[0];
+ old_daddr.as_u64[1] = ip6->dst_address.as_u64[1];
+
+ if (PREDICT_FALSE (frag_hdr_offset))
+ {
+ //Only the first fragment
+ ip6_frag_hdr_t *hdr =
+ (ip6_frag_hdr_t *) u8_ptr_add (ip6, frag_hdr_offset);
+ fragment_id = frag_id_6to4 (hdr->identification);
+ frag_more = ip6_frag_hdr_more (hdr);
+ frag_offset = ip6_frag_hdr_offset (hdr);
+ }
+ else
+ {
+ fragment_id = 0;
+ frag_offset = 0;
+ frag_more = 0;
+ }
+
+ ip4->ip_version_and_header_length =
+ IP4_VERSION_AND_HEADER_LENGTH_NO_OPTIONS;
+ ip4->tos = ip6_translate_tos (ip_version_traffic_class_and_flow_label);
+ ip4->length =
+ u16_net_add (payload_length, sizeof (*ip4) + sizeof (*ip6) - l4_offset);
+ ip4->fragment_id = fragment_id;
+ ip4->flags_and_fragment_offset =
+ clib_host_to_net_u16 (frag_offset |
+ (frag_more ? IP4_HEADER_FLAG_MORE_FRAGMENTS : 0));
+ ip4->ttl = hop_limit;
+ ip4->protocol = (proto == IP_PROTOCOL_ICMP6) ? IP_PROTOCOL_ICMP : proto;
sw_if_index = vnet_buffer (ctx->b)->sw_if_index[VLIB_RX];
fib_index =
fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP6, sw_if_index);
- saddr.as_u64[0] = ip6->src_address.as_u64[0];
- saddr.as_u64[1] = ip6->src_address.as_u64[1];
- daddr.as_u64[0] = ip6->dst_address.as_u64[0];
- daddr.as_u64[1] = ip6->dst_address.as_u64[1];
-
ste =
- nat64_db_st_entry_find (&nm->db, &saddr, &daddr, sport, dport, proto,
+ nat64_db_st_entry_find (db, &old_saddr, &old_daddr, sport, dport, proto,
fib_index, 1);
if (ste)
{
- bibe = nat64_db_bib_entry_by_index (&nm->db, proto, ste->bibe_index);
+ bibe = nat64_db_bib_entry_by_index (db, proto, ste->bibe_index);
if (!bibe)
return -1;
}
else
{
bibe =
- nat64_db_bib_entry_find (&nm->db, &saddr, sport, proto, fib_index, 1);
+ nat64_db_bib_entry_find (db, &old_saddr, sport, proto, fib_index, 1);
if (!bibe)
{
ip4_address_t out_addr;
if (nat64_alloc_out_addr_and_port
(fib_index, ip_proto_to_snat_proto (proto), &out_addr,
- &out_port))
+ &out_port, ctx->thread_index))
return -1;
bibe =
- nat64_db_bib_entry_create (&nm->db, &ip6->src_address, &out_addr,
- sport, clib_host_to_net_u16 (out_port),
- fib_index, proto, 0);
+ nat64_db_bib_entry_create (ctx->thread_index, db,
+ &old_saddr.ip6, &out_addr, sport,
+ out_port, fib_index, proto, 0);
if (!bibe)
return -1;
+
+ vlib_set_simple_counter (&nm->total_bibs, ctx->thread_index, 0,
+ db->bib.bib_entries_num);
}
- nat64_extract_ip4 (&ip6->dst_address, &daddr.ip4, fib_index);
+ nat64_extract_ip4 (&old_daddr.ip6, &new_daddr, fib_index);
ste =
- nat64_db_st_entry_create (&nm->db, bibe, &ip6->dst_address,
- &daddr.ip4, dport);
+ nat64_db_st_entry_create (ctx->thread_index, db, bibe,
+ &old_daddr.ip6, &new_daddr, dport);
if (!ste)
return -1;
- }
- nat64_session_reset_timeout (ste, ctx->vm);
+ vlib_set_simple_counter (&nm->total_sessions, ctx->thread_index, 0,
+ db->st.st_entries_num);
+ }
ip4->src_address.as_u32 = bibe->out_addr.as_u32;
- udp->src_port = bibe->out_port;
-
ip4->dst_address.as_u32 = ste->out_r_addr.as_u32;
- if (proto == IP_PROTOCOL_TCP)
+ ip4->checksum = ip4_header_checksum (ip4);
+
+ if (!vnet_buffer (p)->ip.reass.is_non_first_fragment)
{
- u16 *checksum;
- ip_csum_t csum;
- tcp_header_t *tcp = ip6_next_header (ip6);
+ udp_header_t *udp = (udp_header_t *) (ip4 + 1);
+ udp->src_port = bibe->out_port;
- checksum = &tcp->checksum;
- csum = ip_csum_sub_even (*checksum, sport);
- csum = ip_csum_add_even (csum, udp->src_port);
- *checksum = ip_csum_fold (csum);
+ //UDP checksum is optional over IPv4
+ if (proto == IP_PROTOCOL_UDP)
+ {
+ udp->checksum = 0;
+ }
+ else
+ {
+ tcp_header_t *tcp = (tcp_header_t *) (ip4 + 1);
+ csum = ip_csum_sub_even (tcp->checksum, old_saddr.as_u64[0]);
+ csum = ip_csum_sub_even (csum, old_saddr.as_u64[1]);
+ csum = ip_csum_sub_even (csum, old_daddr.as_u64[0]);
+ csum = ip_csum_sub_even (csum, old_daddr.as_u64[1]);
+ csum = ip_csum_add_even (csum, ip4->dst_address.as_u32);
+ csum = ip_csum_add_even (csum, ip4->src_address.as_u32);
+ csum = ip_csum_sub_even (csum, sport);
+ csum = ip_csum_add_even (csum, udp->src_port);
+ mss_clamping (nm->sm, tcp, &csum);
+ tcp->checksum = ip_csum_fold (csum);
+
+ nat64_tcp_session_set_state (ste, tcp, 1);
+ }
}
+ nat64_session_reset_timeout (ste, ctx->vm);
+
return 0;
}
ip46_address_t saddr, daddr;
u32 sw_if_index, fib_index;
icmp46_header_t *icmp = ip6_next_header (ip6);
+ nat64_db_t *db = &nm->db[ctx->thread_index];
sw_if_index = vnet_buffer (ctx->b)->sw_if_index[VLIB_RX];
fib_index =
{
u16 in_id = ((u16 *) (icmp))[2];
ste =
- nat64_db_st_entry_find (&nm->db, &saddr, &daddr, in_id, 0,
+ nat64_db_st_entry_find (db, &saddr, &daddr, in_id, 0,
IP_PROTOCOL_ICMP, fib_index, 1);
if (ste)
{
bibe =
- nat64_db_bib_entry_by_index (&nm->db, IP_PROTOCOL_ICMP,
+ nat64_db_bib_entry_by_index (db, IP_PROTOCOL_ICMP,
ste->bibe_index);
if (!bibe)
return -1;
else
{
bibe =
- nat64_db_bib_entry_find (&nm->db, &saddr, in_id,
+ nat64_db_bib_entry_find (db, &saddr, in_id,
IP_PROTOCOL_ICMP, fib_index, 1);
if (!bibe)
u16 out_id;
ip4_address_t out_addr;
if (nat64_alloc_out_addr_and_port
- (fib_index, SNAT_PROTOCOL_ICMP, &out_addr, &out_id))
+ (fib_index, SNAT_PROTOCOL_ICMP, &out_addr, &out_id,
+ ctx->thread_index))
return -1;
bibe =
- nat64_db_bib_entry_create (&nm->db, &ip6->src_address,
- &out_addr, in_id,
- clib_host_to_net_u16 (out_id),
- fib_index, IP_PROTOCOL_ICMP, 0);
+ nat64_db_bib_entry_create (ctx->thread_index, db,
+ &ip6->src_address, &out_addr,
+ in_id, out_id, fib_index,
+ IP_PROTOCOL_ICMP, 0);
if (!bibe)
return -1;
+
+ vlib_set_simple_counter (&nm->total_bibs, ctx->thread_index, 0,
+ db->bib.bib_entries_num);
}
nat64_extract_ip4 (&ip6->dst_address, &daddr.ip4, fib_index);
ste =
- nat64_db_st_entry_create (&nm->db, bibe, &ip6->dst_address,
- &daddr.ip4, 0);
+ nat64_db_st_entry_create (ctx->thread_index, db, bibe,
+ &ip6->dst_address, &daddr.ip4, 0);
if (!ste)
return -1;
+
+ vlib_set_simple_counter (&nm->total_sessions, ctx->thread_index, 0,
+ db->st.st_entries_num);
}
nat64_session_reset_timeout (ste, ctx->vm);
ip46_address_t saddr, daddr;
u32 sw_if_index, fib_index;
u8 proto = ip6->protocol;
+ nat64_db_t *db = &nm->db[ctx->thread_index];
sw_if_index = vnet_buffer (ctx->b)->sw_if_index[VLIB_RX];
fib_index =
return -1;
ste =
- nat64_db_st_entry_find (&nm->db, &daddr, &saddr, in_id, 0, proto,
+ nat64_db_st_entry_find (db, &daddr, &saddr, in_id, 0, proto,
fib_index, 1);
if (!ste)
return -1;
- bibe = nat64_db_bib_entry_by_index (&nm->db, proto, ste->bibe_index);
+ bibe = nat64_db_bib_entry_by_index (db, proto, ste->bibe_index);
if (!bibe)
return -1;
u16 dport = udp->dst_port;
ste =
- nat64_db_st_entry_find (&nm->db, &daddr, &saddr, dport, sport, proto,
+ nat64_db_st_entry_find (db, &daddr, &saddr, dport, sport, proto,
fib_index, 1);
if (!ste)
return -1;
- bibe = nat64_db_bib_entry_by_index (&nm->db, proto, ste->bibe_index);
+ bibe = nat64_db_bib_entry_by_index (db, proto, ste->bibe_index);
if (!bibe)
return -1;
ip6_address_t dst_addr;
ip4_address_t out_addr;
u32 fib_index;
+ u32 thread_index;
u8 proto;
} unk_proto_st_walk_ctx_t;
unk_proto_st_walk_ctx_t *ctx = arg;
nat64_db_bib_entry_t *bibe;
ip46_address_t saddr, daddr;
+ nat64_db_t *db = &nm->db[ctx->thread_index];
- if (ip46_address_is_equal (&ste->in_r_addr, &ctx->dst_addr))
+ if (ip6_address_is_equal (&ste->in_r_addr, &ctx->dst_addr))
{
- bibe =
- nat64_db_bib_entry_by_index (&nm->db, ste->proto, ste->bibe_index);
+ bibe = nat64_db_bib_entry_by_index (db, ste->proto, ste->bibe_index);
if (!bibe)
return -1;
- if (ip46_address_is_equal (&bibe->in_addr, &ctx->src_addr)
+ if (ip6_address_is_equal (&bibe->in_addr, &ctx->src_addr)
&& bibe->fib_index == ctx->fib_index)
{
- memset (&saddr, 0, sizeof (saddr));
+ clib_memset (&saddr, 0, sizeof (saddr));
saddr.ip4.as_u32 = bibe->out_addr.as_u32;
- memset (&daddr, 0, sizeof (daddr));
+ clib_memset (&daddr, 0, sizeof (daddr));
nat64_extract_ip4 (&ctx->dst_addr, &daddr.ip4, ctx->fib_index);
if (nat64_db_st_entry_find
- (&nm->db, &daddr, &saddr, 0, 0, ctx->proto, ctx->fib_index, 0))
+ (db, &daddr, &saddr, 0, 0, ctx->proto, ctx->fib_index, 0))
return -1;
ctx->out_addr.as_u32 = bibe->out_addr.as_u32;
}
static int
-nat64_in2out_unk_proto_set_cb (ip6_header_t * ip6, ip4_header_t * ip4,
- void *arg)
+nat64_in2out_unk_proto (vlib_main_t * vm, vlib_buffer_t * p, u8 l4_protocol,
+ u16 l4_offset, u16 frag_hdr_offset,
+ nat64_in2out_set_ctx_t * s_ctx)
{
+ ip6_header_t *ip6;
+ ip4_header_t *ip4;
+ u16 fragment_id;
+ u16 frag_offset;
+ u8 frag_more;
+
+ ip6 = vlib_buffer_get_current (p);
+
+ ip4 = (ip4_header_t *) u8_ptr_add (ip6, l4_offset - sizeof (*ip4));
+
+ vlib_buffer_advance (p, l4_offset - sizeof (*ip4));
+
+ if (PREDICT_FALSE (frag_hdr_offset))
+ {
+ //Only the first fragment
+ ip6_frag_hdr_t *hdr =
+ (ip6_frag_hdr_t *) u8_ptr_add (ip6, frag_hdr_offset);
+ fragment_id = frag_id_6to4 (hdr->identification);
+ frag_offset = ip6_frag_hdr_offset (hdr);
+ frag_more = ip6_frag_hdr_more (hdr);
+ }
+ else
+ {
+ fragment_id = 0;
+ frag_offset = 0;
+ frag_more = 0;
+ }
+
nat64_main_t *nm = &nat64_main;
- nat64_in2out_set_ctx_t *ctx = arg;
nat64_db_bib_entry_t *bibe;
nat64_db_st_entry_t *ste;
ip46_address_t saddr, daddr, addr;
u32 sw_if_index, fib_index;
- u8 proto = ip6->protocol;
int i;
+ nat64_db_t *db = &nm->db[s_ctx->thread_index];
- sw_if_index = vnet_buffer (ctx->b)->sw_if_index[VLIB_RX];
+ sw_if_index = vnet_buffer (s_ctx->b)->sw_if_index[VLIB_RX];
fib_index =
fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP6, sw_if_index);
daddr.as_u64[1] = ip6->dst_address.as_u64[1];
ste =
- nat64_db_st_entry_find (&nm->db, &saddr, &daddr, 0, 0, proto, fib_index,
+ nat64_db_st_entry_find (db, &saddr, &daddr, 0, 0, l4_protocol, fib_index,
1);
if (ste)
{
- bibe = nat64_db_bib_entry_by_index (&nm->db, proto, ste->bibe_index);
+ bibe = nat64_db_bib_entry_by_index (db, l4_protocol, ste->bibe_index);
if (!bibe)
return -1;
}
else
{
bibe =
- nat64_db_bib_entry_find (&nm->db, &saddr, 0, proto, fib_index, 1);
+ nat64_db_bib_entry_find (db, &saddr, 0, l4_protocol, fib_index, 1);
if (!bibe)
{
.dst_addr.as_u64[1] = ip6->dst_address.as_u64[1],
.out_addr.as_u32 = 0,
.fib_index = fib_index,
- .proto = proto,
+ .proto = l4_protocol,
+ .thread_index = s_ctx->thread_index,
};
- nat64_db_st_walk (&nm->db, IP_PROTOCOL_TCP, unk_proto_st_walk,
- &ctx);
+ nat64_db_st_walk (db, IP_PROTOCOL_TCP, unk_proto_st_walk, &ctx);
if (!ctx.out_addr.as_u32)
- nat64_db_st_walk (&nm->db, IP_PROTOCOL_UDP, unk_proto_st_walk,
- &ctx);
+ nat64_db_st_walk (db, IP_PROTOCOL_UDP, unk_proto_st_walk, &ctx);
/* Verify if out address is not already in use for protocol */
- memset (&addr, 0, sizeof (addr));
+ clib_memset (&addr, 0, sizeof (addr));
addr.ip4.as_u32 = ctx.out_addr.as_u32;
- if (nat64_db_bib_entry_find (&nm->db, &addr, 0, proto, 0, 0))
+ if (nat64_db_bib_entry_find (db, &addr, 0, l4_protocol, 0, 0))
ctx.out_addr.as_u32 = 0;
if (!ctx.out_addr.as_u32)
{
addr.ip4.as_u32 = nm->addr_pool[i].addr.as_u32;
if (!nat64_db_bib_entry_find
- (&nm->db, &addr, 0, proto, 0, 0))
+ (db, &addr, 0, l4_protocol, 0, 0))
break;
}
}
return -1;
bibe =
- nat64_db_bib_entry_create (&nm->db, &ip6->src_address,
- &ctx.out_addr, 0, 0, fib_index, proto,
- 0);
+ nat64_db_bib_entry_create (s_ctx->thread_index, db,
+ &ip6->src_address, &ctx.out_addr,
+ 0, 0, fib_index, l4_protocol, 0);
if (!bibe)
return -1;
+
+ vlib_set_simple_counter (&nm->total_bibs, s_ctx->thread_index, 0,
+ db->bib.bib_entries_num);
}
nat64_extract_ip4 (&ip6->dst_address, &daddr.ip4, fib_index);
ste =
- nat64_db_st_entry_create (&nm->db, bibe, &ip6->dst_address,
- &daddr.ip4, 0);
+ nat64_db_st_entry_create (s_ctx->thread_index, db, bibe,
+ &ip6->dst_address, &daddr.ip4, 0);
if (!ste)
return -1;
+
+ vlib_set_simple_counter (&nm->total_sessions, s_ctx->thread_index, 0,
+ db->st.st_entries_num);
}
- nat64_session_reset_timeout (ste, ctx->vm);
+ nat64_session_reset_timeout (ste, s_ctx->vm);
ip4->src_address.as_u32 = bibe->out_addr.as_u32;
ip4->dst_address.as_u32 = ste->out_r_addr.as_u32;
+ ip4->ip_version_and_header_length =
+ IP4_VERSION_AND_HEADER_LENGTH_NO_OPTIONS;
+ ip4->tos = ip6_translate_tos (ip6->ip_version_traffic_class_and_flow_label);
+ ip4->length = u16_net_add (ip6->payload_length,
+ sizeof (*ip4) + sizeof (*ip6) - l4_offset);
+ ip4->fragment_id = fragment_id;
+ ip4->flags_and_fragment_offset =
+ clib_host_to_net_u16 (frag_offset |
+ (frag_more ? IP4_HEADER_FLAG_MORE_FRAGMENTS : 0));
+ ip4->ttl = ip6->hop_limit;
+ ip4->protocol = l4_protocol;
+ ip4->checksum = ip4_header_checksum (ip4);
+
return 0;
}
-
-
static int
nat64_in2out_tcp_udp_hairpinning (vlib_main_t * vm, vlib_buffer_t * b,
- ip6_header_t * ip6)
+ ip6_header_t * ip6, u32 l4_offset,
+ u32 thread_index)
{
nat64_main_t *nm = &nat64_main;
nat64_db_bib_entry_t *bibe;
nat64_db_st_entry_t *ste;
ip46_address_t saddr, daddr;
u32 sw_if_index, fib_index;
- udp_header_t *udp = ip6_next_header (ip6);
- tcp_header_t *tcp = ip6_next_header (ip6);
- u8 proto = ip6->protocol;
- u16 sport = udp->src_port;
- u16 dport = udp->dst_port;
- u16 *checksum;
- ip_csum_t csum;
+ udp_header_t *udp = (udp_header_t *) u8_ptr_add (ip6, l4_offset);
+ tcp_header_t *tcp = (tcp_header_t *) u8_ptr_add (ip6, l4_offset);
+ u8 proto = vnet_buffer (b)->ip.reass.ip_proto;
+ u16 sport = vnet_buffer (b)->ip.reass.l4_src_port;
+ u16 dport = vnet_buffer (b)->ip.reass.l4_dst_port;
+ u16 *checksum = NULL;
+ ip_csum_t csum = 0;
+ nat64_db_t *db = &nm->db[thread_index];
sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX];
fib_index =
daddr.as_u64[0] = ip6->dst_address.as_u64[0];
daddr.as_u64[1] = ip6->dst_address.as_u64[1];
- if (proto == IP_PROTOCOL_UDP)
- checksum = &udp->checksum;
- else
- checksum = &tcp->checksum;
-
- csum = ip_csum_sub_even (*checksum, ip6->src_address.as_u64[0]);
- csum = ip_csum_sub_even (csum, ip6->src_address.as_u64[1]);
- csum = ip_csum_sub_even (csum, ip6->dst_address.as_u64[0]);
- csum = ip_csum_sub_even (csum, ip6->dst_address.as_u64[1]);
- csum = ip_csum_sub_even (csum, sport);
- csum = ip_csum_sub_even (csum, dport);
+ if (!vnet_buffer (b)->ip.reass.is_non_first_fragment)
+ {
+ if (proto == IP_PROTOCOL_UDP)
+ checksum = &udp->checksum;
+ else
+ checksum = &tcp->checksum;
+ csum = ip_csum_sub_even (*checksum, ip6->src_address.as_u64[0]);
+ csum = ip_csum_sub_even (csum, ip6->src_address.as_u64[1]);
+ csum = ip_csum_sub_even (csum, ip6->dst_address.as_u64[0]);
+ csum = ip_csum_sub_even (csum, ip6->dst_address.as_u64[1]);
+ }
ste =
- nat64_db_st_entry_find (&nm->db, &saddr, &daddr, sport, dport, proto,
+ nat64_db_st_entry_find (db, &saddr, &daddr, sport, dport, proto,
fib_index, 1);
if (ste)
{
- bibe = nat64_db_bib_entry_by_index (&nm->db, proto, ste->bibe_index);
+ bibe = nat64_db_bib_entry_by_index (db, proto, ste->bibe_index);
if (!bibe)
return -1;
}
else
{
- bibe =
- nat64_db_bib_entry_find (&nm->db, &saddr, sport, proto, fib_index, 1);
+ bibe = nat64_db_bib_entry_find (db, &saddr, sport, proto, fib_index, 1);
if (!bibe)
{
ip4_address_t out_addr;
if (nat64_alloc_out_addr_and_port
(fib_index, ip_proto_to_snat_proto (proto), &out_addr,
- &out_port))
+ &out_port, thread_index))
return -1;
bibe =
- nat64_db_bib_entry_create (&nm->db, &ip6->src_address, &out_addr,
- sport, clib_host_to_net_u16 (out_port),
- fib_index, proto, 0);
+ nat64_db_bib_entry_create (thread_index, db, &ip6->src_address,
+ &out_addr, sport, out_port, fib_index,
+ proto, 0);
if (!bibe)
return -1;
+
+ vlib_set_simple_counter (&nm->total_bibs, thread_index, 0,
+ db->bib.bib_entries_num);
}
nat64_extract_ip4 (&ip6->dst_address, &daddr.ip4, fib_index);
ste =
- nat64_db_st_entry_create (&nm->db, bibe, &ip6->dst_address,
+ nat64_db_st_entry_create (thread_index, db, bibe, &ip6->dst_address,
&daddr.ip4, dport);
if (!ste)
return -1;
+
+ vlib_set_simple_counter (&nm->total_sessions, thread_index, 0,
+ db->st.st_entries_num);
}
+ if (proto == IP_PROTOCOL_TCP)
+ nat64_tcp_session_set_state (ste, tcp, 1);
+
nat64_session_reset_timeout (ste, vm);
- sport = udp->src_port = bibe->out_port;
+ if (!vnet_buffer (b)->ip.reass.is_non_first_fragment)
+ {
+ udp->src_port = bibe->out_port;
+ }
+
nat64_compose_ip6 (&ip6->src_address, &bibe->out_addr, fib_index);
- memset (&saddr, 0, sizeof (saddr));
- memset (&daddr, 0, sizeof (daddr));
- saddr.ip4.as_u32 = bibe->out_addr.as_u32;
+ clib_memset (&daddr, 0, sizeof (daddr));
daddr.ip4.as_u32 = ste->out_r_addr.as_u32;
- ste =
- nat64_db_st_entry_find (&nm->db, &daddr, &saddr, dport, sport, proto, 0,
- 0);
-
- if (ste)
+ bibe = 0;
+ /* *INDENT-OFF* */
+ vec_foreach (db, nm->db)
{
- bibe = nat64_db_bib_entry_by_index (&nm->db, proto, ste->bibe_index);
- if (!bibe)
- return -1;
- }
- else
- {
- bibe = nat64_db_bib_entry_find (&nm->db, &daddr, dport, proto, 0, 0);
+ bibe = nat64_db_bib_entry_find (db, &daddr, dport, proto, 0, 0);
- if (!bibe)
- return -1;
-
- ste =
- nat64_db_st_entry_create (&nm->db, bibe, &ip6->src_address,
- &saddr.ip4, sport);
+ if (bibe)
+ break;
}
+ /* *INDENT-ON* */
+
+ if (!bibe)
+ return -1;
ip6->dst_address.as_u64[0] = bibe->in_addr.as_u64[0];
ip6->dst_address.as_u64[1] = bibe->in_addr.as_u64[1];
- udp->dst_port = bibe->in_port;
- csum = ip_csum_add_even (csum, ip6->src_address.as_u64[0]);
- csum = ip_csum_add_even (csum, ip6->src_address.as_u64[1]);
- csum = ip_csum_add_even (csum, ip6->dst_address.as_u64[0]);
- csum = ip_csum_add_even (csum, ip6->dst_address.as_u64[1]);
- csum = ip_csum_add_even (csum, udp->src_port);
- csum = ip_csum_add_even (csum, udp->dst_port);
- *checksum = ip_csum_fold (csum);
+ if (!vnet_buffer (b)->ip.reass.is_non_first_fragment)
+ {
+ csum = ip_csum_add_even (csum, ip6->src_address.as_u64[0]);
+ csum = ip_csum_add_even (csum, ip6->src_address.as_u64[1]);
+ csum = ip_csum_add_even (csum, ip6->dst_address.as_u64[0]);
+ csum = ip_csum_add_even (csum, ip6->dst_address.as_u64[1]);
+ csum = ip_csum_sub_even (csum, sport);
+ csum = ip_csum_sub_even (csum, dport);
+ udp->dst_port = bibe->in_port;
+ csum = ip_csum_add_even (csum, udp->src_port);
+ csum = ip_csum_add_even (csum, udp->dst_port);
+ *checksum = ip_csum_fold (csum);
+ }
return 0;
}
static int
nat64_in2out_icmp_hairpinning (vlib_main_t * vm, vlib_buffer_t * b,
- ip6_header_t * ip6)
+ ip6_header_t * ip6, u32 thread_index)
{
nat64_main_t *nm = &nat64_main;
nat64_db_bib_entry_t *bibe;
tcp_header_t *tcp;
u16 *checksum, sport, dport;
ip_csum_t csum;
+ nat64_db_t *db = &nm->db[thread_index];
if (icmp->type == ICMP6_echo_request || icmp->type == ICMP6_echo_reply)
return -1;
csum = ip_csum_sub_even (csum, dport);
ste =
- nat64_db_st_entry_find (&nm->db, &daddr, &saddr, dport, sport, proto,
+ nat64_db_st_entry_find (db, &daddr, &saddr, dport, sport, proto,
fib_index, 1);
if (!ste)
return -1;
- bibe = nat64_db_bib_entry_by_index (&nm->db, proto, ste->bibe_index);
+ bibe = nat64_db_bib_entry_by_index (db, proto, ste->bibe_index);
if (!bibe)
return -1;
dport = udp->dst_port = bibe->out_port;
nat64_compose_ip6 (&inner_ip6->dst_address, &bibe->out_addr, fib_index);
- memset (&saddr, 0, sizeof (saddr));
- memset (&daddr, 0, sizeof (daddr));
+ clib_memset (&saddr, 0, sizeof (saddr));
+ clib_memset (&daddr, 0, sizeof (daddr));
saddr.ip4.as_u32 = ste->out_r_addr.as_u32;
daddr.ip4.as_u32 = bibe->out_addr.as_u32;
- ste =
- nat64_db_st_entry_find (&nm->db, &saddr, &daddr, sport, dport, proto, 0,
- 0);
+ ste = 0;
+ /* *INDENT-OFF* */
+ vec_foreach (db, nm->db)
+ {
+ ste = nat64_db_st_entry_find (db, &saddr, &daddr, sport, dport, proto,
+ 0, 0);
+
+ if (ste)
+ break;
+ }
+ /* *INDENT-ON* */
+
if (!ste)
return -1;
- bibe = nat64_db_bib_entry_by_index (&nm->db, proto, ste->bibe_index);
+ bibe = nat64_db_bib_entry_by_index (db, proto, ste->bibe_index);
if (!bibe)
return -1;
static int
nat64_in2out_unk_proto_hairpinning (vlib_main_t * vm, vlib_buffer_t * b,
- ip6_header_t * ip6)
+ ip6_header_t * ip6, u32 thread_index)
{
nat64_main_t *nm = &nat64_main;
nat64_db_bib_entry_t *bibe;
u32 sw_if_index, fib_index;
u8 proto = ip6->protocol;
int i;
+ nat64_db_t *db = &nm->db[thread_index];
sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX];
fib_index =
daddr.as_u64[1] = ip6->dst_address.as_u64[1];
ste =
- nat64_db_st_entry_find (&nm->db, &saddr, &daddr, 0, 0, proto, fib_index,
- 1);
+ nat64_db_st_entry_find (db, &saddr, &daddr, 0, 0, proto, fib_index, 1);
if (ste)
{
- bibe = nat64_db_bib_entry_by_index (&nm->db, proto, ste->bibe_index);
+ bibe = nat64_db_bib_entry_by_index (db, proto, ste->bibe_index);
if (!bibe)
return -1;
}
else
{
- bibe =
- nat64_db_bib_entry_find (&nm->db, &saddr, 0, proto, fib_index, 1);
+ bibe = nat64_db_bib_entry_find (db, &saddr, 0, proto, fib_index, 1);
if (!bibe)
{
.out_addr.as_u32 = 0,
.fib_index = fib_index,
.proto = proto,
+ .thread_index = thread_index,
};
- nat64_db_st_walk (&nm->db, IP_PROTOCOL_TCP, unk_proto_st_walk,
- &ctx);
+ nat64_db_st_walk (db, IP_PROTOCOL_TCP, unk_proto_st_walk, &ctx);
if (!ctx.out_addr.as_u32)
- nat64_db_st_walk (&nm->db, IP_PROTOCOL_UDP, unk_proto_st_walk,
- &ctx);
+ nat64_db_st_walk (db, IP_PROTOCOL_UDP, unk_proto_st_walk, &ctx);
/* Verify if out address is not already in use for protocol */
- memset (&addr, 0, sizeof (addr));
+ clib_memset (&addr, 0, sizeof (addr));
addr.ip4.as_u32 = ctx.out_addr.as_u32;
- if (nat64_db_bib_entry_find (&nm->db, &addr, 0, proto, 0, 0))
+ if (nat64_db_bib_entry_find (db, &addr, 0, proto, 0, 0))
ctx.out_addr.as_u32 = 0;
if (!ctx.out_addr.as_u32)
for (i = 0; i < vec_len (nm->addr_pool); i++)
{
addr.ip4.as_u32 = nm->addr_pool[i].addr.as_u32;
- if (!nat64_db_bib_entry_find
- (&nm->db, &addr, 0, proto, 0, 0))
+ if (!nat64_db_bib_entry_find (db, &addr, 0, proto, 0, 0))
break;
}
}
return -1;
bibe =
- nat64_db_bib_entry_create (&nm->db, &ip6->src_address,
+ nat64_db_bib_entry_create (thread_index, db, &ip6->src_address,
&ctx.out_addr, 0, 0, fib_index, proto,
0);
if (!bibe)
return -1;
+
+ vlib_set_simple_counter (&nm->total_bibs, thread_index, 0,
+ db->bib.bib_entries_num);
}
nat64_extract_ip4 (&ip6->dst_address, &daddr.ip4, fib_index);
ste =
- nat64_db_st_entry_create (&nm->db, bibe, &ip6->dst_address,
+ nat64_db_st_entry_create (thread_index, db, bibe, &ip6->dst_address,
&daddr.ip4, 0);
if (!ste)
return -1;
+
+ vlib_set_simple_counter (&nm->total_sessions, thread_index, 0,
+ db->st.st_entries_num);
}
nat64_session_reset_timeout (ste, vm);
nat64_compose_ip6 (&ip6->src_address, &bibe->out_addr, fib_index);
- memset (&saddr, 0, sizeof (saddr));
- memset (&daddr, 0, sizeof (daddr));
- saddr.ip4.as_u32 = bibe->out_addr.as_u32;
+ clib_memset (&daddr, 0, sizeof (daddr));
daddr.ip4.as_u32 = ste->out_r_addr.as_u32;
- ste = nat64_db_st_entry_find (&nm->db, &daddr, &saddr, 0, 0, proto, 0, 0);
-
- if (ste)
+ bibe = 0;
+ /* *INDENT-OFF* */
+ vec_foreach (db, nm->db)
{
- bibe = nat64_db_bib_entry_by_index (&nm->db, proto, ste->bibe_index);
- if (!bibe)
- return -1;
- }
- else
- {
- bibe = nat64_db_bib_entry_find (&nm->db, &daddr, 0, proto, 0, 0);
-
- if (!bibe)
- return -1;
+ bibe = nat64_db_bib_entry_find (db, &daddr, 0, proto, 0, 0);
- ste =
- nat64_db_st_entry_create (&nm->db, bibe, &ip6->src_address,
- &saddr.ip4, 0);
+ if (bibe)
+ break;
}
+ /* *INDENT-ON* */
+
+ if (!bibe)
+ return -1;
ip6->dst_address.as_u64[0] = bibe->in_addr.as_u64[0];
ip6->dst_address.as_u64[1] = bibe->in_addr.as_u64[1];
nat64_in2out_next_t next_index;
u32 pkts_processed = 0;
u32 stats_node_index;
+ u32 thread_index = vm->thread_index;
+ nat64_main_t *nm = &nat64_main;
+
+ u32 tcp_packets = 0, udp_packets = 0, icmp_packets = 0, other_packets =
+ 0, fragments = 0;
stats_node_index =
- is_slow_path ? nat64_in2out_slowpath_node.index : nat64_in2out_node.index;
+ is_slow_path ? nm->in2out_slowpath_node_index : nm->in2out_node_index;
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
vlib_buffer_t *b0;
u32 next0;
ip6_header_t *ip60;
- u16 l4_offset0, frag_offset0;
+ u16 l4_offset0, frag_hdr_offset0;
u8 l4_protocol0;
u32 proto0;
nat64_in2out_set_ctx_t ctx0;
+ u32 sw_if_index0;
/* speculatively enqueue b0 to the current next frame */
bi0 = from[0];
ctx0.b = b0;
ctx0.vm = vm;
+ ctx0.thread_index = thread_index;
next0 = NAT64_IN2OUT_NEXT_IP4_LOOKUP;
if (PREDICT_FALSE
(ip6_parse
- (ip60, b0->current_length, &l4_protocol0, &l4_offset0,
- &frag_offset0)))
+ (vm, b0, ip60, b0->current_length, &l4_protocol0, &l4_offset0,
+ &frag_hdr_offset0)))
{
next0 = NAT64_IN2OUT_NEXT_DROP;
b0->error = node->errors[NAT64_IN2OUT_ERROR_UNKNOWN];
goto trace0;
}
- proto0 = ip_proto_to_snat_proto (l4_protocol0);
- if (frag_offset0 != 0)
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+
+ if (nat64_not_translate (sw_if_index0, ip60->dst_address))
{
- next0 = NAT64_IN2OUT_NEXT_DROP;
- b0->error =
- node->errors[NAT64_IN2OUT_ERROR_UNSUPPORTED_PROTOCOL];
+ next0 = NAT64_IN2OUT_NEXT_IP6_LOOKUP;
goto trace0;
}
+ proto0 = ip_proto_to_snat_proto (l4_protocol0);
+
if (is_slow_path)
{
if (PREDICT_TRUE (proto0 == ~0))
{
+ other_packets++;
if (is_hairpinning (&ip60->dst_address))
{
next0 = NAT64_IN2OUT_NEXT_IP6_LOOKUP;
- if (nat64_in2out_unk_proto_hairpinning (vm, b0, ip60))
+ if (nat64_in2out_unk_proto_hairpinning
+ (vm, b0, ip60, thread_index))
{
next0 = NAT64_IN2OUT_NEXT_DROP;
b0->error =
goto trace0;
}
- if (ip6_to_ip4 (b0, nat64_in2out_unk_proto_set_cb, &ctx0))
+ if (nat64_in2out_unk_proto
+ (vm, b0, l4_protocol0, l4_offset0, frag_hdr_offset0,
+ &ctx0))
{
next0 = NAT64_IN2OUT_NEXT_DROP;
b0->error =
if (proto0 == SNAT_PROTOCOL_ICMP)
{
+ icmp_packets++;
if (is_hairpinning (&ip60->dst_address))
{
next0 = NAT64_IN2OUT_NEXT_IP6_LOOKUP;
- if (nat64_in2out_icmp_hairpinning (vm, b0, ip60))
+ if (nat64_in2out_icmp_hairpinning
+ (vm, b0, ip60, thread_index))
{
next0 = NAT64_IN2OUT_NEXT_DROP;
b0->error =
}
if (icmp6_to_icmp
- (b0, nat64_in2out_icmp_set_cb, &ctx0,
+ (vm, b0, nat64_in2out_icmp_set_cb, &ctx0,
nat64_in2out_inner_icmp_set_cb, &ctx0))
{
next0 = NAT64_IN2OUT_NEXT_DROP;
}
else if (proto0 == SNAT_PROTOCOL_TCP || proto0 == SNAT_PROTOCOL_UDP)
{
+ if (proto0 == SNAT_PROTOCOL_TCP)
+ tcp_packets++;
+ else
+ udp_packets++;
+
if (is_hairpinning (&ip60->dst_address))
{
next0 = NAT64_IN2OUT_NEXT_IP6_LOOKUP;
- if (nat64_in2out_tcp_udp_hairpinning (vm, b0, ip60))
+ if (nat64_in2out_tcp_udp_hairpinning
+ (vm, b0, ip60, l4_offset0, thread_index))
{
next0 = NAT64_IN2OUT_NEXT_DROP;
b0->error =
goto trace0;
}
- if (ip6_to_ip4_tcp_udp
- (b0, nat64_in2out_tcp_udp_set_cb, &ctx0, 0))
+ if (nat64_in2out_tcp_udp
+ (vm, b0, l4_offset0, frag_hdr_offset0, &ctx0))
{
next0 = NAT64_IN2OUT_NEXT_DROP;
b0->error = node->errors[NAT64_IN2OUT_ERROR_NO_TRANSLATION];
t->is_slow_path = is_slow_path;
}
- pkts_processed += next0 != NAT64_IN2OUT_NEXT_DROP;
+ pkts_processed += next0 == NAT64_IN2OUT_NEXT_IP4_LOOKUP;
/* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
vlib_node_increment_counter (vm, stats_node_index,
NAT64_IN2OUT_ERROR_IN2OUT_PACKETS,
pkts_processed);
+ vlib_node_increment_counter (vm, stats_node_index,
+ NAT64_IN2OUT_ERROR_TCP_PACKETS, tcp_packets);
+ vlib_node_increment_counter (vm, stats_node_index,
+ NAT64_IN2OUT_ERROR_UDP_PACKETS, udp_packets);
+ vlib_node_increment_counter (vm, stats_node_index,
+ NAT64_IN2OUT_ERROR_ICMP_PACKETS, icmp_packets);
+ vlib_node_increment_counter (vm, stats_node_index,
+ NAT64_IN2OUT_ERROR_OTHER_PACKETS,
+ other_packets);
+ vlib_node_increment_counter (vm, stats_node_index,
+ NAT64_IN2OUT_ERROR_FRAGMENTS, fragments);
+
return frame->n_vectors;
}
-static uword
-nat64_in2out_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+VLIB_NODE_FN (nat64_in2out_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
return nat64_in2out_node_fn_inline (vm, node, frame, 0);
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (nat64_in2out_node) = {
- .function = nat64_in2out_node_fn,
.name = "nat64-in2out",
.vector_size = sizeof (u32),
.format_trace = format_nat64_in2out_trace,
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (nat64_in2out_node, nat64_in2out_node_fn);
-
-static uword
-nat64_in2out_slowpath_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+VLIB_NODE_FN (nat64_in2out_slowpath_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
return nat64_in2out_node_fn_inline (vm, node, frame, 1);
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (nat64_in2out_slowpath_node) = {
- .function = nat64_in2out_slowpath_node_fn,
.name = "nat64-in2out-slowpath",
.vector_size = sizeof (u32),
.format_trace = format_nat64_in2out_trace,
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (nat64_in2out_slowpath_node,
- nat64_in2out_slowpath_node_fn);
+typedef struct nat64_in2out_frag_set_ctx_t_
+{
+ vlib_main_t *vm;
+ u32 sess_index;
+ u32 thread_index;
+ u16 l4_offset;
+ u8 proto;
+ u8 first_frag;
+} nat64_in2out_frag_set_ctx_t;
+
+
+#define foreach_nat64_in2out_handoff_error \
+_(CONGESTION_DROP, "congestion drop") \
+_(SAME_WORKER, "same worker") \
+_(DO_HANDOFF, "do handoff")
+
+typedef enum
+{
+#define _(sym,str) NAT64_IN2OUT_HANDOFF_ERROR_##sym,
+ foreach_nat64_in2out_handoff_error
+#undef _
+ NAT64_IN2OUT_HANDOFF_N_ERROR,
+} nat64_in2out_handoff_error_t;
+
+static char *nat64_in2out_handoff_error_strings[] = {
+#define _(sym,string) string,
+ foreach_nat64_in2out_handoff_error
+#undef _
+};
+
+typedef struct
+{
+ u32 next_worker_index;
+} nat64_in2out_handoff_trace_t;
+
+static u8 *
+format_nat64_in2out_handoff_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ nat64_in2out_handoff_trace_t *t =
+ va_arg (*args, nat64_in2out_handoff_trace_t *);
+
+ s =
+ format (s, "NAT64-IN2OUT-HANDOFF: next-worker %d", t->next_worker_index);
+
+ return s;
+}
+
+VLIB_NODE_FN (nat64_in2out_handoff_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ nat64_main_t *nm = &nat64_main;
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b;
+ u32 n_enq, n_left_from, *from;
+ u16 thread_indices[VLIB_FRAME_SIZE], *ti;
+ u32 fq_index;
+ u32 thread_index = vm->thread_index;
+ u32 do_handoff = 0, same_worker = 0;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ vlib_get_buffers (vm, from, bufs, n_left_from);
+
+ b = bufs;
+ ti = thread_indices;
+
+ fq_index = nm->fq_in2out_index;
+
+ while (n_left_from > 0)
+ {
+ ip6_header_t *ip0;
+
+ ip0 = vlib_buffer_get_current (b[0]);
+ ti[0] = nat64_get_worker_in2out (&ip0->src_address);
+
+ if (ti[0] != thread_index)
+ do_handoff++;
+ else
+ same_worker++;
+
+ if (PREDICT_FALSE
+ ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b[0]->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ nat64_in2out_handoff_trace_t *t =
+ vlib_add_trace (vm, node, b[0], sizeof (*t));
+ t->next_worker_index = ti[0];
+ }
+
+ n_left_from -= 1;
+ ti += 1;
+ b += 1;
+ }
+
+ n_enq =
+ vlib_buffer_enqueue_to_thread (vm, fq_index, from, thread_indices,
+ frame->n_vectors, 1);
+
+ if (n_enq < frame->n_vectors)
+ vlib_node_increment_counter (vm, node->node_index,
+ NAT64_IN2OUT_HANDOFF_ERROR_CONGESTION_DROP,
+ frame->n_vectors - n_enq);
+ vlib_node_increment_counter (vm, node->node_index,
+ NAT64_IN2OUT_HANDOFF_ERROR_SAME_WORKER,
+ same_worker);
+ vlib_node_increment_counter (vm, node->node_index,
+ NAT64_IN2OUT_HANDOFF_ERROR_DO_HANDOFF,
+ do_handoff);
+
+ return frame->n_vectors;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (nat64_in2out_handoff_node) = {
+ .name = "nat64-in2out-handoff",
+ .vector_size = sizeof (u32),
+ .format_trace = format_nat64_in2out_handoff_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN(nat64_in2out_handoff_error_strings),
+ .error_strings = nat64_in2out_handoff_error_strings,
+
+ .n_next_nodes = 1,
+
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
+/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
Code Review / vpp.git / blobdiff