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authorMatus Fabian <matfabia@cisco.com>2017-07-11 03:55:02 -0700
committerOle Trøan <otroan@employees.org>2017-08-16 08:36:43 +0000
commitf8cd5817442f3a191befb3242a2c0c9bdd927ce0 (patch)
tree5836120f7430572c122cfe15e98a948d2424202f /src/plugins/snat/nat64_in2out.c
parent6d5c4cdbcc4799a9f43df68df434d5786db44b45 (diff)
NAT64: Fallback to 3-tuple key for non TCP/UDP sessions (VPP-884)
Change-Id: I4cafc8291725feb499355092bd429433e649b5b2 Signed-off-by: Matus Fabian <matfabia@cisco.com>
Diffstat (limited to 'src/plugins/snat/nat64_in2out.c')
-rw-r--r--src/plugins/snat/nat64_in2out.c414
1 files changed, 388 insertions, 26 deletions
diff --git a/src/plugins/snat/nat64_in2out.c b/src/plugins/snat/nat64_in2out.c
index 126b076c7ce..8c67fec2b29 100644
--- a/src/plugins/snat/nat64_in2out.c
+++ b/src/plugins/snat/nat64_in2out.c
@@ -25,6 +25,7 @@ typedef struct
{
u32 sw_if_index;
u32 next_index;
+ u8 is_slow_path;
} nat64_in2out_trace_t;
static u8 *
@@ -33,15 +34,19 @@ format_nat64_in2out_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_trace_t *t = va_arg (*args, nat64_in2out_trace_t *);
+ char *tag;
+
+ tag = t->is_slow_path ? "NAT64-in2out-slowpath" : "NAT64-in2out";
s =
- format (s, "NAT64-in2out: sw_if_index %d, next index %d", t->sw_if_index,
+ format (s, "%s: sw_if_index %d, next index %d", tag, t->sw_if_index,
t->next_index);
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") \
@@ -68,6 +73,7 @@ typedef enum
NAT64_IN2OUT_NEXT_IP4_LOOKUP,
NAT64_IN2OUT_NEXT_IP6_LOOKUP,
NAT64_IN2OUT_NEXT_DROP,
+ NAT64_IN2OUT_NEXT_SLOWPATH,
NAT64_IN2OUT_N_NEXT,
} nat64_in2out_next_t;
@@ -113,7 +119,7 @@ nat64_in2out_tcp_udp_set_cb (ip6_header_t * ip6, ip4_header_t * ip4,
ip46_address_t saddr, daddr;
u32 sw_if_index, fib_index;
udp_header_t *udp = ip6_next_header (ip6);
- snat_protocol_t proto = ip_proto_to_snat_proto (ip6->protocol);
+ u8 proto = ip6->protocol;
u16 sport = udp->src_port;
u16 dport = udp->dst_port;
@@ -146,7 +152,8 @@ nat64_in2out_tcp_udp_set_cb (ip6_header_t * ip6, ip4_header_t * ip4,
u16 out_port;
ip4_address_t out_addr;
if (nat64_alloc_out_addr_and_port
- (fib_index, proto, &out_addr, &out_port))
+ (fib_index, ip_proto_to_snat_proto (proto), &out_addr,
+ &out_port))
return -1;
bibe =
@@ -172,7 +179,7 @@ nat64_in2out_tcp_udp_set_cb (ip6_header_t * ip6, ip4_header_t * ip4,
ip4->dst_address.as_u32 = ste->out_r_addr.as_u32;
- if (proto == SNAT_PROTOCOL_TCP)
+ if (proto == IP_PROTOCOL_TCP)
{
u16 *checksum;
ip_csum_t csum;
@@ -212,12 +219,12 @@ nat64_in2out_icmp_set_cb (ip6_header_t * ip6, ip4_header_t * ip4, void *arg)
u16 in_id = ((u16 *) (icmp))[2];
ste =
nat64_db_st_entry_find (&nm->db, &saddr, &daddr, in_id, 0,
- SNAT_PROTOCOL_ICMP, fib_index, 1);
+ IP_PROTOCOL_ICMP, fib_index, 1);
if (ste)
{
bibe =
- nat64_db_bib_entry_by_index (&nm->db, SNAT_PROTOCOL_ICMP,
+ nat64_db_bib_entry_by_index (&nm->db, IP_PROTOCOL_ICMP,
ste->bibe_index);
if (!bibe)
return -1;
@@ -226,7 +233,7 @@ nat64_in2out_icmp_set_cb (ip6_header_t * ip6, ip4_header_t * ip4, void *arg)
{
bibe =
nat64_db_bib_entry_find (&nm->db, &saddr, in_id,
- SNAT_PROTOCOL_ICMP, fib_index, 1);
+ IP_PROTOCOL_ICMP, fib_index, 1);
if (!bibe)
{
@@ -240,7 +247,7 @@ nat64_in2out_icmp_set_cb (ip6_header_t * ip6, ip4_header_t * ip4, void *arg)
nat64_db_bib_entry_create (&nm->db, &ip6->src_address,
&out_addr, in_id,
clib_host_to_net_u16 (out_id),
- fib_index, SNAT_PROTOCOL_ICMP, 0);
+ fib_index, IP_PROTOCOL_ICMP, 0);
if (!bibe)
return -1;
}
@@ -282,7 +289,7 @@ nat64_in2out_inner_icmp_set_cb (ip6_header_t * ip6, ip4_header_t * ip4,
nat64_db_bib_entry_t *bibe;
ip46_address_t saddr, daddr;
u32 sw_if_index, fib_index;
- snat_protocol_t proto = ip_proto_to_snat_proto (ip6->protocol);
+ u8 proto = ip6->protocol;
sw_if_index = vnet_buffer (ctx->b)->sw_if_index[VLIB_RX];
fib_index =
@@ -293,10 +300,11 @@ nat64_in2out_inner_icmp_set_cb (ip6_header_t * ip6, ip4_header_t * ip4,
daddr.as_u64[0] = ip6->dst_address.as_u64[0];
daddr.as_u64[1] = ip6->dst_address.as_u64[1];
- if (proto == SNAT_PROTOCOL_ICMP)
+ if (proto == IP_PROTOCOL_ICMP6)
{
icmp46_header_t *icmp = ip6_next_header (ip6);
u16 in_id = ((u16 *) (icmp))[2];
+ proto = IP_PROTOCOL_ICMP;
if (!
(icmp->type == ICMP4_echo_request
@@ -341,7 +349,7 @@ nat64_in2out_inner_icmp_set_cb (ip6_header_t * ip6, ip4_header_t * ip4,
udp->dst_port = bibe->out_port;
ip4->src_address.as_u32 = ste->out_r_addr.as_u32;
- if (proto == SNAT_PROTOCOL_TCP)
+ if (proto == IP_PROTOCOL_TCP)
checksum = &tcp->checksum;
else
checksum = &udp->checksum;
@@ -353,6 +361,153 @@ nat64_in2out_inner_icmp_set_cb (ip6_header_t * ip6, ip4_header_t * ip4,
return 0;
}
+typedef struct unk_proto_st_walk_ctx_t_
+{
+ ip6_address_t src_addr;
+ ip6_address_t dst_addr;
+ ip4_address_t out_addr;
+ u32 fib_index;
+ u8 proto;
+} unk_proto_st_walk_ctx_t;
+
+static int
+unk_proto_st_walk (nat64_db_st_entry_t * ste, void *arg)
+{
+ nat64_main_t *nm = &nat64_main;
+ unk_proto_st_walk_ctx_t *ctx = arg;
+ nat64_db_bib_entry_t *bibe;
+ ip46_address_t saddr, daddr;
+
+ if (ip46_address_is_equal (&ste->in_r_addr, &ctx->dst_addr))
+ {
+ bibe =
+ nat64_db_bib_entry_by_index (&nm->db, ste->proto, ste->bibe_index);
+ if (!bibe)
+ return -1;
+
+ if (ip46_address_is_equal (&bibe->in_addr, &ctx->src_addr)
+ && bibe->fib_index == ctx->fib_index)
+ {
+ memset (&saddr, 0, sizeof (saddr));
+ saddr.ip4.as_u32 = bibe->out_addr.as_u32;
+ 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))
+ return -1;
+
+ ctx->out_addr.as_u32 = bibe->out_addr.as_u32;
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+static int
+nat64_in2out_unk_proto_set_cb (ip6_header_t * ip6, ip4_header_t * ip4,
+ void *arg)
+{
+ 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;
+
+ 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, 0, 0, proto, fib_index,
+ 1);
+
+ if (ste)
+ {
+ 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, &saddr, 0, proto, fib_index, 1);
+
+ if (!bibe)
+ {
+ /* Choose same out address as for TCP/UDP session to same dst */
+ unk_proto_st_walk_ctx_t ctx = {
+ .src_addr.as_u64[0] = ip6->src_address.as_u64[0],
+ .src_addr.as_u64[1] = ip6->src_address.as_u64[1],
+ .dst_addr.as_u64[0] = ip6->dst_address.as_u64[0],
+ .dst_addr.as_u64[1] = ip6->dst_address.as_u64[1],
+ .out_addr.as_u32 = 0,
+ .fib_index = fib_index,
+ .proto = proto,
+ };
+
+ nat64_db_st_walk (&nm->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);
+
+ /* Verify if out address is not already in use for protocol */
+ 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))
+ 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))
+ break;
+ }
+ }
+
+ if (!ctx.out_addr.as_u32)
+ return -1;
+
+ bibe =
+ nat64_db_bib_entry_create (&nm->db, &ip6->src_address,
+ &ctx.out_addr, 0, 0, fib_index, proto,
+ 0);
+ if (!bibe)
+ return -1;
+ }
+
+ 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);
+ if (!ste)
+ return -1;
+ }
+
+ nat64_session_reset_timeout (ste, ctx->vm);
+
+ ip4->src_address.as_u32 = bibe->out_addr.as_u32;
+ ip4->dst_address.as_u32 = ste->out_r_addr.as_u32;
+
+ return 0;
+}
+
+
+
static int
nat64_in2out_tcp_udp_hairpinning (vlib_main_t * vm, vlib_buffer_t * b,
ip6_header_t * ip6)
@@ -364,7 +519,7 @@ nat64_in2out_tcp_udp_hairpinning (vlib_main_t * vm, vlib_buffer_t * b,
u32 sw_if_index, fib_index;
udp_header_t *udp = ip6_next_header (ip6);
tcp_header_t *tcp = ip6_next_header (ip6);
- snat_protocol_t proto = ip_proto_to_snat_proto (ip6->protocol);
+ u8 proto = ip6->protocol;
u16 sport = udp->src_port;
u16 dport = udp->dst_port;
u16 *checksum;
@@ -379,7 +534,7 @@ nat64_in2out_tcp_udp_hairpinning (vlib_main_t * vm, vlib_buffer_t * b,
daddr.as_u64[0] = ip6->dst_address.as_u64[0];
daddr.as_u64[1] = ip6->dst_address.as_u64[1];
- if (proto == SNAT_PROTOCOL_UDP)
+ if (proto == IP_PROTOCOL_UDP)
checksum = &udp->checksum;
else
checksum = &tcp->checksum;
@@ -411,7 +566,8 @@ nat64_in2out_tcp_udp_hairpinning (vlib_main_t * vm, vlib_buffer_t * b,
u16 out_port;
ip4_address_t out_addr;
if (nat64_alloc_out_addr_and_port
- (fib_index, proto, &out_addr, &out_port))
+ (fib_index, ip_proto_to_snat_proto (proto), &out_addr,
+ &out_port))
return -1;
bibe =
@@ -488,7 +644,7 @@ nat64_in2out_icmp_hairpinning (vlib_main_t * vm, vlib_buffer_t * b,
ip6_header_t *inner_ip6;
ip46_address_t saddr, daddr;
u32 sw_if_index, fib_index;
- snat_protocol_t proto;
+ u8 proto;
udp_header_t *udp;
tcp_header_t *tcp;
u16 *checksum, sport, dport;
@@ -499,9 +655,9 @@ nat64_in2out_icmp_hairpinning (vlib_main_t * vm, vlib_buffer_t * b,
inner_ip6 = (ip6_header_t *) u8_ptr_add (icmp, 8);
- proto = ip_proto_to_snat_proto (inner_ip6->protocol);
+ proto = inner_ip6->protocol;
- if (proto == SNAT_PROTOCOL_ICMP)
+ if (proto == IP_PROTOCOL_ICMP6)
return -1;
sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX];
@@ -519,7 +675,7 @@ nat64_in2out_icmp_hairpinning (vlib_main_t * vm, vlib_buffer_t * b,
sport = udp->src_port;
dport = udp->dst_port;
- if (proto == SNAT_PROTOCOL_UDP)
+ if (proto == IP_PROTOCOL_UDP)
checksum = &udp->checksum;
else
checksum = &tcp->checksum;
@@ -593,13 +749,144 @@ nat64_in2out_icmp_hairpinning (vlib_main_t * vm, vlib_buffer_t * b,
return 0;
}
-static uword
-nat64_in2out_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+static int
+nat64_in2out_unk_proto_hairpinning (vlib_main_t * vm, vlib_buffer_t * b,
+ ip6_header_t * ip6)
+{
+ nat64_main_t *nm = &nat64_main;
+ 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;
+
+ sw_if_index = vnet_buffer (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, 0, 0, proto, fib_index,
+ 1);
+
+ if (ste)
+ {
+ 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, &saddr, 0, proto, fib_index, 1);
+
+ if (!bibe)
+ {
+ /* Choose same out address as for TCP/UDP session to same dst */
+ unk_proto_st_walk_ctx_t ctx = {
+ .src_addr.as_u64[0] = ip6->src_address.as_u64[0],
+ .src_addr.as_u64[1] = ip6->src_address.as_u64[1],
+ .dst_addr.as_u64[0] = ip6->dst_address.as_u64[0],
+ .dst_addr.as_u64[1] = ip6->dst_address.as_u64[1],
+ .out_addr.as_u32 = 0,
+ .fib_index = fib_index,
+ .proto = proto,
+ };
+
+ nat64_db_st_walk (&nm->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);
+
+ /* Verify if out address is not already in use for protocol */
+ 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))
+ 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))
+ break;
+ }
+ }
+
+ if (!ctx.out_addr.as_u32)
+ return -1;
+
+ bibe =
+ nat64_db_bib_entry_create (&nm->db, &ip6->src_address,
+ &ctx.out_addr, 0, 0, fib_index, proto,
+ 0);
+ if (!bibe)
+ return -1;
+ }
+
+ 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);
+ if (!ste)
+ return -1;
+ }
+
+ 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;
+ 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 = 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;
+
+ ste =
+ nat64_db_st_entry_create (&nm->db, bibe, &ip6->src_address,
+ &saddr.ip4, 0);
+ }
+
+ ip6->dst_address.as_u64[0] = bibe->in_addr.as_u64[0];
+ ip6->dst_address.as_u64[1] = bibe->in_addr.as_u64[1];
+
+ return 0;
+}
+
+static inline uword
+nat64_in2out_node_fn_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * frame, u8 is_slow_path)
{
u32 n_left_from, *from, *to_next;
nat64_in2out_next_t next_index;
u32 pkts_processed = 0;
+ u32 stats_node_index;
+
+ stats_node_index =
+ is_slow_path ? nat64_in2out_slowpath_node.index : nat64_in2out_node.index;
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
@@ -649,7 +936,7 @@ nat64_in2out_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
}
proto0 = ip_proto_to_snat_proto (l4_protocol0);
- if (PREDICT_FALSE ((proto0 == ~0) || (frag_offset0 != 0)))
+ if (frag_offset0 != 0)
{
next0 = NAT64_IN2OUT_NEXT_DROP;
b0->error =
@@ -657,6 +944,41 @@ nat64_in2out_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
goto trace0;
}
+ if (is_slow_path)
+ {
+ if (PREDICT_TRUE (proto0 == ~0))
+ {
+ if (is_hairpinning (&ip60->dst_address))
+ {
+ next0 = NAT64_IN2OUT_NEXT_IP6_LOOKUP;
+ if (nat64_in2out_unk_proto_hairpinning (vm, b0, ip60))
+ {
+ next0 = NAT64_IN2OUT_NEXT_DROP;
+ b0->error =
+ node->errors[NAT64_IN2OUT_ERROR_NO_TRANSLATION];
+ }
+ goto trace0;
+ }
+
+ if (ip6_to_ip4 (b0, nat64_in2out_unk_proto_set_cb, &ctx0))
+ {
+ next0 = NAT64_IN2OUT_NEXT_DROP;
+ b0->error =
+ node->errors[NAT64_IN2OUT_ERROR_NO_TRANSLATION];
+ goto trace0;
+ }
+ }
+ goto trace0;
+ }
+ else
+ {
+ if (PREDICT_FALSE (proto0 == ~0))
+ {
+ next0 = NAT64_IN2OUT_NEXT_SLOWPATH;
+ goto trace0;
+ }
+ }
+
if (proto0 == SNAT_PROTOCOL_ICMP)
{
if (is_hairpinning (&ip60->dst_address))
@@ -680,7 +1002,7 @@ nat64_in2out_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
goto trace0;
}
}
- else
+ else if (proto0 == SNAT_PROTOCOL_TCP || proto0 == SNAT_PROTOCOL_UDP)
{
if (is_hairpinning (&ip60->dst_address))
{
@@ -711,6 +1033,7 @@ nat64_in2out_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_add_trace (vm, node, b0, sizeof (*t));
t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX];
t->next_index = next0;
+ t->is_slow_path = is_slow_path;
}
pkts_processed += next0 != NAT64_IN2OUT_NEXT_DROP;
@@ -721,32 +1044,71 @@ nat64_in2out_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
}
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- vlib_node_increment_counter (vm, nat64_in2out_node.index,
+ vlib_node_increment_counter (vm, stats_node_index,
NAT64_IN2OUT_ERROR_IN2OUT_PACKETS,
pkts_processed);
return frame->n_vectors;
}
+static uword
+nat64_in2out_node_fn (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",
+ .function = nat64_in2out_node_fn,
+ .name = "nat64-in2out",
.vector_size = sizeof (u32),
.format_trace = format_nat64_in2out_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN (nat64_in2out_error_strings),
.error_strings = nat64_in2out_error_strings,
- .n_next_nodes = 2,
+ .n_next_nodes = NAT64_IN2OUT_N_NEXT,
/* edit / add dispositions here */
.next_nodes = {
[NAT64_IN2OUT_NEXT_DROP] = "error-drop",
[NAT64_IN2OUT_NEXT_IP4_LOOKUP] = "ip4-lookup",
[NAT64_IN2OUT_NEXT_IP6_LOOKUP] = "ip6-lookup",
+ [NAT64_IN2OUT_NEXT_SLOWPATH] = "nat64-in2out-slowpath",
},
};
/* *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)
+{
+ 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,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN (nat64_in2out_error_strings),
+ .error_strings = nat64_in2out_error_strings,
+ .n_next_nodes = NAT64_IN2OUT_N_NEXT,
+ /* edit / add dispositions here */
+ .next_nodes = {
+ [NAT64_IN2OUT_NEXT_DROP] = "error-drop",
+ [NAT64_IN2OUT_NEXT_IP4_LOOKUP] = "ip4-lookup",
+ [NAT64_IN2OUT_NEXT_IP6_LOOKUP] = "ip6-lookup",
+ [NAT64_IN2OUT_NEXT_SLOWPATH] = "nat64-in2out-slowpath",
+ },
+};
+/* *INDENT-ON* */
+
+VLIB_NODE_FUNCTION_MULTIARCH (nat64_in2out_slowpath_node,
+ nat64_in2out_slowpath_node_fn);
+
/*
* fd.io coding-style-patch-verification: ON
*