#include <nat/nat_reass.h>
#include <vnet/ip/ip4_to_ip6.h>
#include <vnet/fib/ip4_fib.h>
+#include <vnet/udp/udp.h>
typedef struct
{
vlib_node_registration_t nat64_out2in_node;
vlib_node_registration_t nat64_out2in_reass_node;
+vlib_node_registration_t nat64_out2in_handoff_node;
#define foreach_nat64_out2in_error \
_(UNSUPPORTED_PROTOCOL, "Unsupported protocol") \
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);
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 (db, bibe, &ip6_saddr, &saddr.ip4, sport);
}
nat64_session_reset_timeout (ste, ctx->vm);
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);
{
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 (db, bibe, &ip6_saddr, &saddr.ip4, 0);
}
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 =
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);
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 (db, bibe, &ip6_saddr, &saddr.ip4, 0);
}
nat64_session_reset_timeout (ste, ctx->vm);
u32 n_left_from, *from, *to_next;
nat64_out2in_next_t next_index;
u32 pkts_processed = 0;
+ u32 thread_index = vlib_get_thread_index ();
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);
{
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;
/* 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",
},
};
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;
u32 *fragments_to_drop = 0;
u32 *fragments_to_loopback = 0;
nat64_main_t *nm = &nat64_main;
+ u32 thread_index = vlib_get_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;
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 (db, bibe0, &ip6_saddr0,
&saddr0.ip4, udp0->src_port);
if (!ste0)
goto trace0;
}
}
- 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);
}
/* 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",
},
};
VLIB_NODE_FUNCTION_MULTIARCH (nat64_out2in_reass_node,
nat64_out2in_reass_node_fn);
+typedef struct
+{
+ u32 next_worker_index;
+ u8 do_handoff;
+} 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 *);
+ char *m;
+
+ m = t->do_handoff ? "next worker" : "same worker";
+ s = format (s, "NAT64-OUT2IN-HANDOFF: %s %d", m, t->next_worker_index);
+
+ return s;
+}
+
+static inline uword
+nat64_out2in_handoff_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ nat64_main_t *nm = &nat64_main;
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
+ u32 n_left_from, *from, *to_next = 0, *to_next_drop = 0;
+ static __thread vlib_frame_queue_elt_t **handoff_queue_elt_by_worker_index;
+ static __thread vlib_frame_queue_t **congested_handoff_queue_by_worker_index
+ = 0;
+ vlib_frame_queue_elt_t *hf = 0;
+ vlib_frame_queue_t *fq;
+ vlib_frame_t *f = 0, *d = 0;
+ int i;
+ u32 n_left_to_next_worker = 0, *to_next_worker = 0;
+ u32 next_worker_index = 0;
+ u32 current_worker_index = ~0;
+ u32 thread_index = vlib_get_thread_index ();
+ u32 fq_index;
+ u32 to_node_index;
+
+ fq_index = nm->fq_out2in_index;
+ to_node_index = nat64_out2in_node.index;
+
+ if (PREDICT_FALSE (handoff_queue_elt_by_worker_index == 0))
+ {
+ vec_validate (handoff_queue_elt_by_worker_index, tm->n_vlib_mains - 1);
+
+ vec_validate_init_empty (congested_handoff_queue_by_worker_index,
+ tm->n_vlib_mains - 1,
+ (vlib_frame_queue_t *) (~0));
+ }
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+
+ while (n_left_from > 0)
+ {
+ u32 bi0;
+ vlib_buffer_t *b0;
+ ip4_header_t *ip0;
+ u8 do_handoff;
+
+ bi0 = from[0];
+ from += 1;
+ n_left_from -= 1;
+
+ b0 = vlib_get_buffer (vm, bi0);
+
+ ip0 = vlib_buffer_get_current (b0);
+
+ next_worker_index = nat64_get_worker_out2in (ip0);
+
+ if (PREDICT_FALSE (next_worker_index != thread_index))
+ {
+ do_handoff = 1;
+
+ if (next_worker_index != current_worker_index)
+ {
+ fq =
+ is_vlib_frame_queue_congested (fq_index, next_worker_index,
+ 30,
+ congested_handoff_queue_by_worker_index);
+
+ if (fq)
+ {
+ /* if this is 1st frame */
+ if (!d)
+ {
+ d = vlib_get_frame_to_node (vm, nm->error_node_index);
+ to_next_drop = vlib_frame_vector_args (d);
+ }
+
+ to_next_drop[0] = bi0;
+ to_next_drop += 1;
+ d->n_vectors++;
+ goto trace0;
+ }
+
+ if (hf)
+ hf->n_vectors = VLIB_FRAME_SIZE - n_left_to_next_worker;
+
+ hf =
+ vlib_get_worker_handoff_queue_elt (fq_index,
+ next_worker_index,
+ handoff_queue_elt_by_worker_index);
+ n_left_to_next_worker = VLIB_FRAME_SIZE - hf->n_vectors;
+ to_next_worker = &hf->buffer_index[hf->n_vectors];
+ current_worker_index = next_worker_index;
+ }
+
+ /* enqueue to correct worker thread */
+ to_next_worker[0] = bi0;
+ to_next_worker++;
+ n_left_to_next_worker--;
+
+ if (n_left_to_next_worker == 0)
+ {
+ hf->n_vectors = VLIB_FRAME_SIZE;
+ vlib_put_frame_queue_elt (hf);
+ current_worker_index = ~0;
+ handoff_queue_elt_by_worker_index[next_worker_index] = 0;
+ hf = 0;
+ }
+ }
+ else
+ {
+ do_handoff = 0;
+ /* if this is 1st frame */
+ if (!f)
+ {
+ f = vlib_get_frame_to_node (vm, to_node_index);
+ to_next = vlib_frame_vector_args (f);
+ }
+
+ to_next[0] = bi0;
+ to_next += 1;
+ f->n_vectors++;
+ }
+
+ trace0:
+ if (PREDICT_FALSE
+ ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ nat64_out2in_handoff_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->next_worker_index = next_worker_index;
+ t->do_handoff = do_handoff;
+ }
+ }
+
+ if (f)
+ vlib_put_frame_to_node (vm, to_node_index, f);
+
+ if (d)
+ vlib_put_frame_to_node (vm, nm->error_node_index, d);
+
+ if (hf)
+ hf->n_vectors = VLIB_FRAME_SIZE - n_left_to_next_worker;
+
+ /* Ship frames to the worker nodes */
+ for (i = 0; i < vec_len (handoff_queue_elt_by_worker_index); i++)
+ {
+ if (handoff_queue_elt_by_worker_index[i])
+ {
+ hf = handoff_queue_elt_by_worker_index[i];
+ /*
+ * It works better to let the handoff node
+ * rate-adapt, always ship the handoff queue element.
+ */
+ if (1 || hf->n_vectors == hf->last_n_vectors)
+ {
+ vlib_put_frame_queue_elt (hf);
+ handoff_queue_elt_by_worker_index[i] = 0;
+ }
+ else
+ hf->last_n_vectors = hf->n_vectors;
+ }
+ congested_handoff_queue_by_worker_index[i] =
+ (vlib_frame_queue_t *) (~0);
+ }
+ hf = 0;
+ current_worker_index = ~0;
+ return frame->n_vectors;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (nat64_out2in_handoff_node) = {
+ .function = nat64_out2in_handoff_node_fn,
+ .name = "nat64-out2in-handoff",
+ .vector_size = sizeof (u32),
+ .format_trace = format_nat64_out2in_handoff_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_next_nodes = 1,
+
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
+/* *INDENT-ON* */
+
+VLIB_NODE_FUNCTION_MULTIARCH (nat64_out2in_handoff_node,
+ nat64_out2in_handoff_node_fn);
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff