#include <nat/nat64.h>
#include <nat/nat_reass.h>
+#include <nat/nat_inlines.h>
#include <vnet/ip/ip4_to_ip6.h>
#include <vnet/fib/ip4_fib.h>
+#include <vnet/udp/udp.h>
typedef struct
{
return s;
}
-vlib_node_registration_t nat64_out2in_node;
-vlib_node_registration_t nat64_out2in_reass_node;
#define foreach_nat64_out2in_error \
-_(UNSUPPORTED_PROTOCOL, "Unsupported protocol") \
-_(OUT2IN_PACKETS, "Good out2in packets processed") \
-_(NO_TRANSLATION, "No translation") \
+_(UNSUPPORTED_PROTOCOL, "unsupported protocol") \
+_(OUT2IN_PACKETS, "good out2in packets processed") \
+_(NO_TRANSLATION, "no translation") \
_(UNKNOWN, "unknown") \
-_(DROP_FRAGMENT, "Drop fragment") \
-_(MAX_REASS, "Maximum reassemblies exceeded") \
-_(MAX_FRAG, "Maximum fragments per reassembly exceeded")
+_(DROP_FRAGMENT, "drop fragment") \
+_(MAX_REASS, "maximum reassemblies exceeded") \
+_(MAX_FRAG, "maximum fragments per reassembly exceeded") \
+_(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")
typedef enum
typedef enum
{
- NAT64_OUT2IN_NEXT_LOOKUP,
+ NAT64_OUT2IN_NEXT_IP6_LOOKUP,
+ NAT64_OUT2IN_NEXT_IP4_LOOKUP,
NAT64_OUT2IN_NEXT_DROP,
NAT64_OUT2IN_NEXT_REASS,
NAT64_OUT2IN_N_NEXT,
{
vlib_buffer_t *b;
vlib_main_t *vm;
+ u32 thread_index;
} nat64_out2in_set_ctx_t;
static int
u32 sw_if_index, fib_index;
u16 *checksum;
ip_csum_t csum;
+ nat64_db_t *db = &nm->db[ctx->thread_index];
sw_if_index = vnet_buffer (ctx->b)->sw_if_index[VLIB_RX];
fib_index = ip4_fib_table_get_index_for_sw_if_index (sw_if_index);
- memset (&saddr, 0, sizeof (saddr));
+ clib_memset (&saddr, 0, sizeof (saddr));
saddr.ip4.as_u32 = ip4->src_address.as_u32;
- memset (&daddr, 0, sizeof (daddr));
+ clib_memset (&daddr, 0, sizeof (daddr));
daddr.ip4.as_u32 = ip4->dst_address.as_u32;
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, 0);
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, &daddr, dport, proto, fib_index, 0);
+ bibe = nat64_db_bib_entry_find (db, &daddr, dport, proto, fib_index, 0);
if (!bibe)
return -1;
nat64_compose_ip6 (&ip6_saddr, &ip4->src_address, bibe->fib_index);
ste =
- nat64_db_st_entry_create (&nm->db, bibe, &ip6_saddr, &saddr.ip4,
- sport);
- }
+ nat64_db_st_entry_create (ctx->thread_index, db, bibe, &ip6_saddr,
+ &saddr.ip4, sport);
- nat64_session_reset_timeout (ste, ctx->vm);
+ if (!ste)
+ return -1;
+
+ vlib_set_simple_counter (&nm->total_sessions, ctx->thread_index, 0,
+ db->st.st_entries_num);
+ }
ip6->src_address.as_u64[0] = ste->in_r_addr.as_u64[0];
ip6->src_address.as_u64[1] = ste->in_r_addr.as_u64[1];
if (proto == IP_PROTOCOL_UDP)
checksum = &udp->checksum;
else
- checksum = &tcp->checksum;
+ {
+ checksum = &tcp->checksum;
+ nat64_tcp_session_set_state (ste, tcp, 0);
+ }
+
csum = ip_csum_sub_even (*checksum, dport);
csum = ip_csum_add_even (csum, udp->dst_port);
*checksum = ip_csum_fold (csum);
vnet_buffer (ctx->b)->sw_if_index[VLIB_TX] = bibe->fib_index;
+ nat64_session_reset_timeout (ste, ctx->vm);
+
return 0;
}
ip6_address_t ip6_saddr;
u32 sw_if_index, fib_index;
icmp46_header_t *icmp = ip4_next_header (ip4);
+ nat64_db_t *db = &nm->db[ctx->thread_index];
sw_if_index = vnet_buffer (ctx->b)->sw_if_index[VLIB_RX];
fib_index = ip4_fib_table_get_index_for_sw_if_index (sw_if_index);
- memset (&saddr, 0, sizeof (saddr));
+ clib_memset (&saddr, 0, sizeof (saddr));
saddr.ip4.as_u32 = ip4->src_address.as_u32;
- memset (&daddr, 0, sizeof (daddr));
+ clib_memset (&daddr, 0, sizeof (daddr));
daddr.ip4.as_u32 = ip4->dst_address.as_u32;
if (icmp->type == ICMP6_echo_request || icmp->type == ICMP6_echo_reply)
{
u16 out_id = ((u16 *) (icmp))[2];
ste =
- nat64_db_st_entry_find (&nm->db, &daddr, &saddr, out_id, 0,
+ nat64_db_st_entry_find (db, &daddr, &saddr, out_id, 0,
IP_PROTOCOL_ICMP, fib_index, 0);
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, &daddr, out_id,
+ nat64_db_bib_entry_find (db, &daddr, out_id,
IP_PROTOCOL_ICMP, fib_index, 0);
if (!bibe)
return -1;
nat64_compose_ip6 (&ip6_saddr, &ip4->src_address, bibe->fib_index);
ste =
- nat64_db_st_entry_create (&nm->db, bibe, &ip6_saddr, &saddr.ip4,
- 0);
+ nat64_db_st_entry_create (ctx->thread_index, db,
+ bibe, &ip6_saddr, &saddr.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 = ip4->protocol;
+ nat64_db_t *db = &nm->db[ctx->thread_index];
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);
- memset (&saddr, 0, sizeof (saddr));
+ clib_memset (&saddr, 0, sizeof (saddr));
saddr.ip4.as_u32 = ip4->src_address.as_u32;
- memset (&daddr, 0, sizeof (daddr));
+ clib_memset (&daddr, 0, sizeof (daddr));
daddr.ip4.as_u32 = ip4->dst_address.as_u32;
if (proto == IP_PROTOCOL_ICMP6)
return -1;
ste =
- nat64_db_st_entry_find (&nm->db, &saddr, &daddr, out_id, 0, proto,
+ nat64_db_st_entry_find (db, &saddr, &daddr, out_id, 0, proto,
fib_index, 0);
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;
ip_csum_t csum;
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, 0);
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 ip6_saddr;
u32 sw_if_index, fib_index;
u8 proto = ip4->protocol;
+ nat64_db_t *db = &nm->db[ctx->thread_index];
sw_if_index = vnet_buffer (ctx->b)->sw_if_index[VLIB_RX];
fib_index = ip4_fib_table_get_index_for_sw_if_index (sw_if_index);
- memset (&saddr, 0, sizeof (saddr));
+ clib_memset (&saddr, 0, sizeof (saddr));
saddr.ip4.as_u32 = ip4->src_address.as_u32;
- memset (&daddr, 0, sizeof (daddr));
+ clib_memset (&daddr, 0, sizeof (daddr));
daddr.ip4.as_u32 = ip4->dst_address.as_u32;
ste =
- nat64_db_st_entry_find (&nm->db, &daddr, &saddr, 0, 0, proto, fib_index,
- 0);
+ nat64_db_st_entry_find (db, &daddr, &saddr, 0, 0, proto, fib_index, 0);
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, &daddr, 0, proto, fib_index, 0);
+ bibe = nat64_db_bib_entry_find (db, &daddr, 0, proto, fib_index, 0);
if (!bibe)
return -1;
nat64_compose_ip6 (&ip6_saddr, &ip4->src_address, bibe->fib_index);
- ste =
- nat64_db_st_entry_create (&nm->db, bibe, &ip6_saddr, &saddr.ip4, 0);
+ ste = nat64_db_st_entry_create (ctx->thread_index, db,
+ bibe, &ip6_saddr, &saddr.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);
return 0;
}
-static uword
-nat64_out2in_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+VLIB_NODE_FN (nat64_out2in_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
u32 n_left_from, *from, *to_next;
nat64_out2in_next_t next_index;
+ nat64_main_t *nm = &nat64_main;
u32 pkts_processed = 0;
+ u32 thread_index = vm->thread_index;
+ u32 tcp_packets = 0, udp_packets = 0, icmp_packets = 0, other_packets =
+ 0, fragments = 0;
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
ip4_header_t *ip40;
u32 proto0;
nat64_out2in_set_ctx_t ctx0;
+ udp_header_t *udp0;
/* speculatively enqueue b0 to the current next frame */
bi0 = from[0];
ctx0.b = b0;
ctx0.vm = vm;
+ ctx0.thread_index = thread_index;
- next0 = NAT64_OUT2IN_NEXT_LOOKUP;
+ next0 = NAT64_OUT2IN_NEXT_IP6_LOOKUP;
proto0 = ip_proto_to_snat_proto (ip40->protocol);
next0 = NAT64_OUT2IN_NEXT_DROP;
b0->error = node->errors[NAT64_OUT2IN_ERROR_NO_TRANSLATION];
}
+ other_packets++;
goto trace0;
}
if (PREDICT_FALSE (ip4_is_fragment (ip40)))
{
next0 = NAT64_OUT2IN_NEXT_REASS;
+ fragments++;
goto trace0;
}
if (proto0 == SNAT_PROTOCOL_ICMP)
{
+ icmp_packets++;
if (icmp_to_icmp6
(b0, nat64_out2in_icmp_set_cb, &ctx0,
nat64_out2in_inner_icmp_set_cb, &ctx0))
}
else
{
+ if (proto0 == SNAT_PROTOCOL_TCP)
+ tcp_packets++;
+ else
+ udp_packets++;
+
if (ip4_to_ip6_tcp_udp (b0, nat64_out2in_tcp_udp_set_cb, &ctx0))
{
+ udp0 = ip4_next_header (ip40);
+ /*
+ * Send DHCP packets to the ipv4 stack, or we won't
+ * be able to use dhcp client on the outside interface
+ */
+ if ((proto0 == SNAT_PROTOCOL_UDP)
+ && (udp0->dst_port ==
+ clib_host_to_net_u16 (UDP_DST_PORT_dhcp_to_client)))
+ {
+ next0 = NAT64_OUT2IN_NEXT_IP4_LOOKUP;
+ goto trace0;
+ }
next0 = NAT64_OUT2IN_NEXT_DROP;
b0->error = node->errors[NAT64_OUT2IN_ERROR_NO_TRANSLATION];
goto trace0;
t->next_index = next0;
}
- pkts_processed += next0 != NAT64_OUT2IN_NEXT_DROP;
+ pkts_processed += next0 == NAT64_OUT2IN_NEXT_IP6_LOOKUP;
/* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
}
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- vlib_node_increment_counter (vm, nat64_out2in_node.index,
+ vlib_node_increment_counter (vm, nm->out2in_node_index,
NAT64_OUT2IN_ERROR_OUT2IN_PACKETS,
pkts_processed);
+ vlib_node_increment_counter (vm, nm->out2in_node_index,
+ NAT64_OUT2IN_ERROR_TCP_PACKETS, tcp_packets);
+ vlib_node_increment_counter (vm, nm->out2in_node_index,
+ NAT64_OUT2IN_ERROR_UDP_PACKETS, tcp_packets);
+ vlib_node_increment_counter (vm, nm->out2in_node_index,
+ NAT64_OUT2IN_ERROR_ICMP_PACKETS, icmp_packets);
+ vlib_node_increment_counter (vm, nm->out2in_node_index,
+ NAT64_OUT2IN_ERROR_OTHER_PACKETS,
+ other_packets);
+ vlib_node_increment_counter (vm, nm->out2in_node_index,
+ NAT64_OUT2IN_ERROR_FRAGMENTS, fragments);
+
return frame->n_vectors;
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (nat64_out2in_node) = {
- .function = nat64_out2in_node_fn,
.name = "nat64-out2in",
.vector_size = sizeof (u32),
.format_trace = format_nat64_out2in_trace,
/* edit / add dispositions here */
.next_nodes = {
[NAT64_OUT2IN_NEXT_DROP] = "error-drop",
- [NAT64_OUT2IN_NEXT_LOOKUP] = "ip6-lookup",
+ [NAT64_OUT2IN_NEXT_IP6_LOOKUP] = "ip6-lookup",
+ [NAT64_OUT2IN_NEXT_IP4_LOOKUP] = "ip4-lookup",
[NAT64_OUT2IN_NEXT_REASS] = "nat64-out2in-reass",
},
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (nat64_out2in_node, nat64_out2in_node_fn);
-
typedef struct nat64_out2in_frag_set_ctx_t_
{
vlib_main_t *vm;
vlib_buffer_t *b;
u32 sess_index;
+ u32 thread_index;
u8 proto;
u8 first_frag;
} nat64_out2in_frag_set_ctx_t;
udp_header_t *udp = ip4_next_header (ip4);
ip_csum_t csum;
u16 *checksum;
+ nat64_db_t *db = &nm->db[ctx->thread_index];
- ste = nat64_db_st_entry_by_index (&nm->db, ctx->proto, ctx->sess_index);
+ ste = nat64_db_st_entry_by_index (db, ctx->proto, ctx->sess_index);
if (!ste)
return -1;
- bibe = nat64_db_bib_entry_by_index (&nm->db, ctx->proto, ste->bibe_index);
+ bibe = nat64_db_bib_entry_by_index (db, ctx->proto, ste->bibe_index);
if (!bibe)
return -1;
- nat64_session_reset_timeout (ste, ctx->vm);
-
if (ctx->first_frag)
{
udp->dst_port = bibe->in_port;
else
{
tcp_header_t *tcp = ip4_next_header (ip4);
+ nat64_tcp_session_set_state (ste, tcp, 0);
checksum = &tcp->checksum;
csum = ip_csum_sub_even (*checksum, bibe->out_addr.as_u32);
csum = ip_csum_sub_even (csum, ste->out_r_addr.as_u32);
vnet_buffer (ctx->b)->sw_if_index[VLIB_TX] = bibe->fib_index;
+ nat64_session_reset_timeout (ste, ctx->vm);
+
return 0;
}
-static uword
-nat64_out2in_reass_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+VLIB_NODE_FN (nat64_out2in_reass_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
u32 n_left_from, *from, *to_next;
nat64_out2in_next_t next_index;
- u32 pkts_processed = 0;
+ u32 pkts_processed = 0, cached_fragments = 0;
u32 *fragments_to_drop = 0;
u32 *fragments_to_loopback = 0;
nat64_main_t *nm = &nat64_main;
+ u32 thread_index = vm->thread_index;
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
nat64_db_bib_entry_t *bibe0;
ip6_address_t ip6_saddr0;
nat64_out2in_frag_set_ctx_t ctx0;
+ nat64_db_t *db = &nm->db[thread_index];
/* speculatively enqueue b0 to the current next frame */
bi0 = from[0];
n_left_to_next -= 1;
b0 = vlib_get_buffer (vm, bi0);
- next0 = NAT64_OUT2IN_NEXT_LOOKUP;
+ next0 = NAT64_OUT2IN_NEXT_IP6_LOOKUP;
sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
fib_index0 =
fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
sw_if_index0);
+ ctx0.thread_index = thread_index;
+
if (PREDICT_FALSE (nat_reass_is_drop_frag (1)))
{
next0 = NAT64_OUT2IN_NEXT_DROP;
{
ctx0.first_frag = 1;
- memset (&saddr0, 0, sizeof (saddr0));
+ clib_memset (&saddr0, 0, sizeof (saddr0));
saddr0.ip4.as_u32 = ip40->src_address.as_u32;
- memset (&daddr0, 0, sizeof (daddr0));
+ clib_memset (&daddr0, 0, sizeof (daddr0));
daddr0.ip4.as_u32 = ip40->dst_address.as_u32;
ste0 =
- nat64_db_st_entry_find (&nm->db, &daddr0, &saddr0,
+ nat64_db_st_entry_find (db, &daddr0, &saddr0,
udp0->dst_port, udp0->src_port,
ip40->protocol, fib_index0, 0);
if (!ste0)
{
bibe0 =
- nat64_db_bib_entry_find (&nm->db, &daddr0, udp0->dst_port,
+ nat64_db_bib_entry_find (db, &daddr0, udp0->dst_port,
ip40->protocol, fib_index0, 0);
if (!bibe0)
{
nat64_compose_ip6 (&ip6_saddr0, &ip40->src_address,
bibe0->fib_index);
ste0 =
- nat64_db_st_entry_create (&nm->db, bibe0, &ip6_saddr0,
+ nat64_db_st_entry_create (thread_index,
+ db, bibe0, &ip6_saddr0,
&saddr0.ip4, udp0->src_port);
if (!ste0)
node->errors[NAT64_OUT2IN_ERROR_NO_TRANSLATION];
goto trace0;
}
+
+ vlib_set_simple_counter (&nm->total_sessions, thread_index,
+ 0, db->st.st_entries_num);
}
- reass0->sess_index =
- nat64_db_st_entry_get_index (&nm->db, ste0);
+ reass0->sess_index = nat64_db_st_entry_get_index (db, ste0);
+ reass0->thread_index = thread_index;
nat_ip4_reass_get_frags (reass0, &fragments_to_loopback);
}
if (PREDICT_FALSE (reass0->sess_index == (u32) ~ 0))
{
- if (nat_ip4_reass_add_fragment (reass0, bi0))
+ if (nat_ip4_reass_add_fragment
+ (thread_index, reass0, bi0, &fragments_to_drop))
{
b0->error = node->errors[NAT64_OUT2IN_ERROR_MAX_FRAG];
next0 = NAT64_OUT2IN_NEXT_DROP;
{
n_left_to_next++;
to_next--;
+ cached_fragments++;
}
else
{
u32 len = vec_len (fragments_to_loopback);
if (len <= VLIB_FRAME_SIZE)
{
- clib_memcpy (from, fragments_to_loopback,
- sizeof (u32) * len);
+ clib_memcpy_fast (from, fragments_to_loopback,
+ sizeof (u32) * len);
n_left_from = len;
vec_reset_length (fragments_to_loopback);
}
else
{
- clib_memcpy (from,
- fragments_to_loopback + (len -
- VLIB_FRAME_SIZE),
- sizeof (u32) * VLIB_FRAME_SIZE);
+ clib_memcpy_fast (from, fragments_to_loopback +
+ (len - VLIB_FRAME_SIZE),
+ sizeof (u32) * VLIB_FRAME_SIZE);
n_left_from = VLIB_FRAME_SIZE;
_vec_len (fragments_to_loopback) = len - VLIB_FRAME_SIZE;
}
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- vlib_node_increment_counter (vm, nat64_out2in_reass_node.index,
- NAT64_OUT2IN_ERROR_OUT2IN_PACKETS,
+ vlib_node_increment_counter (vm, nm->out2in_reass_node_index,
+ NAT64_OUT2IN_ERROR_PROCESSED_FRAGMENTS,
pkts_processed);
+ vlib_node_increment_counter (vm, nm->out2in_reass_node_index,
+ NAT64_OUT2IN_ERROR_CACHED_FRAGMENTS,
+ cached_fragments);
nat_send_all_to_node (vm, fragments_to_drop, node,
&node->errors[NAT64_OUT2IN_ERROR_DROP_FRAGMENT],
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (nat64_out2in_reass_node) = {
- .function = nat64_out2in_reass_node_fn,
.name = "nat64-out2in-reass",
.vector_size = sizeof (u32),
.format_trace = format_nat64_out2in_reass_trace,
/* edit / add dispositions here */
.next_nodes = {
[NAT64_OUT2IN_NEXT_DROP] = "error-drop",
- [NAT64_OUT2IN_NEXT_LOOKUP] = "ip6-lookup",
+ [NAT64_OUT2IN_NEXT_IP6_LOOKUP] = "ip6-lookup",
+ [NAT64_OUT2IN_NEXT_IP4_LOOKUP] = "ip4-lookup",
[NAT64_OUT2IN_NEXT_REASS] = "nat64-out2in-reass",
},
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (nat64_out2in_reass_node,
- nat64_out2in_reass_node_fn);
+#define foreach_nat64_out2in_handoff_error \
+_(CONGESTION_DROP, "congestion drop") \
+_(SAME_WORKER, "same worker") \
+_(DO_HANDOFF, "do handoff")
+
+typedef enum
+{
+#define _(sym,str) NAT64_OUT2IN_HANDOFF_ERROR_##sym,
+ foreach_nat64_out2in_handoff_error
+#undef _
+ NAT64_OUT2IN_HANDOFF_N_ERROR,
+} nat64_out2in_handoff_error_t;
+
+static char *nat64_out2in_handoff_error_strings[] = {
+#define _(sym,string) string,
+ foreach_nat64_out2in_handoff_error
+#undef _
+};
+
+typedef struct
+{
+ u32 next_worker_index;
+} nat64_out2in_handoff_trace_t;
+
+static u8 *
+format_nat64_out2in_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_out2in_handoff_trace_t *t =
+ va_arg (*args, nat64_out2in_handoff_trace_t *);
+
+ s =
+ format (s, "NAT64-OUT2IN-HANDOFF: next-worker %d", t->next_worker_index);
+
+ return s;
+}
+
+VLIB_NODE_FN (nat64_out2in_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_out2in_index;
+
+ while (n_left_from > 0)
+ {
+ ip4_header_t *ip0;
+
+ ip0 = vlib_buffer_get_current (b[0]);
+ ti[0] = nat64_get_worker_out2in (ip0);
+
+ 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_out2in_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_OUT2IN_HANDOFF_ERROR_CONGESTION_DROP,
+ frame->n_vectors - n_enq);
+ vlib_node_increment_counter (vm, node->node_index,
+ NAT64_OUT2IN_HANDOFF_ERROR_SAME_WORKER,
+ same_worker);
+ vlib_node_increment_counter (vm, node->node_index,
+ NAT64_OUT2IN_HANDOFF_ERROR_DO_HANDOFF,
+ do_handoff);
+
+ return frame->n_vectors;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (nat64_out2in_handoff_node) = {
+ .name = "nat64-out2in-handoff",
+ .vector_size = sizeof (u32),
+ .format_trace = format_nat64_out2in_handoff_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN(nat64_out2in_handoff_error_strings),
+ .error_strings = nat64_out2in_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