#include <vnet/ip/ip.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/fib/ip4_fib.h>
-#include <vnet/udp/udp.h>
+#include <vnet/udp/udp_local.h>
#include <vppinfra/error.h>
#include <nat/nat.h>
#include <nat/lib/ipfix_logging.h>
#include <nat/nat_inlines.h>
#include <nat/nat44/inlines.h>
-#include <nat/nat_syslog.h>
+#include <nat/lib/nat_syslog.h>
#include <nat/nat_ha.h>
#include <nat/nat44/ed_inlines.h>
u32 is_slow_path;
} nat44_ed_out2in_trace_t;
+typedef struct
+{
+ u16 thread_next;
+} nat44_ed_out2in_handoff_trace_t;
+
static u8 *
format_nat44_ed_out2in_trace (u8 * s, va_list * args)
{
if (ip->protocol == IP_PROTOCOL_TCP)
{
tcp_header_t *tcp = ip4_next_header (ip);
- if (nat44_set_tcp_session_state_o2i
- (sm, now, s, tcp->flags, tcp->ack_number, tcp->seq_number,
- thread_index))
- return;
+ nat44_set_tcp_session_state_o2i (sm, now, s, tcp->flags,
+ tcp->ack_number, tcp->seq_number,
+ thread_index);
}
/* Accounting */
nat44_session_update_lru (sm, s, thread_index);
}
-static inline void
-create_bypass_for_fwd_worker (snat_main_t * sm, vlib_buffer_t * b,
- ip4_header_t * ip, u32 rx_fib_index)
+static_always_inline int
+create_bypass_for_fwd_worker (snat_main_t * sm,
+ vlib_buffer_t * b, ip4_header_t * ip,
+ u32 rx_fib_index, u32 thread_index)
{
- ip4_header_t ip_wkr = {
+ ip4_header_t tmp = {
.src_address = ip->dst_address,
};
- u32 thread_index = sm->worker_in2out_cb (&ip_wkr, rx_fib_index, 0);
+ u32 index = sm->worker_in2out_cb (&tmp, rx_fib_index, 0);
+
+ if (index != thread_index)
+ {
+ vnet_buffer2 (b)->nat.thread_next = index;
+ return 1;
+ }
create_bypass_for_fwd (sm, b, ip, rx_fib_index, thread_index);
+ return 0;
}
#ifndef CLIB_MARCH_VARIANT
else
{
if (sm->num_workers > 1)
- create_bypass_for_fwd_worker (sm, b, ip, rx_fib_index);
+ {
+ if (create_bypass_for_fwd_worker (sm, b, ip,
+ rx_fib_index,
+ thread_index))
+ {
+ next = NAT_NEXT_OUT2IN_ED_HANDOFF;
+ }
+ }
else
- create_bypass_for_fwd (sm, b, ip, rx_fib_index,
- thread_index);
+ {
+ create_bypass_for_fwd (sm, b, ip, rx_fib_index,
+ thread_index);
+ }
}
}
goto out;
}
vlib_increment_simple_counter (&sm->counters.fastpath.out2in_ed.tcp,
thread_index, sw_if_index0, 1);
- if (nat44_set_tcp_session_state_o2i
- (sm, now, s0, vnet_buffer (b0)->ip.reass.icmp_type_or_tcp_flags,
- vnet_buffer (b0)->ip.reass.tcp_ack_number,
- vnet_buffer (b0)->ip.reass.tcp_seq_number, thread_index))
- goto trace0;
+ nat44_set_tcp_session_state_o2i (sm, now, s0,
+ vnet_buffer (b0)->ip.
+ reass.icmp_type_or_tcp_flags,
+ vnet_buffer (b0)->ip.
+ reass.tcp_ack_number,
+ vnet_buffer (b0)->ip.
+ reass.tcp_seq_number,
+ thread_index);
}
else if (!vnet_buffer (b0)->ip.reass.is_non_first_fragment
&& udp0->checksum)
}
else
{
- if (sm->num_workers > 1)
- create_bypass_for_fwd_worker (sm, b0, ip0,
- rx_fib_index0);
+ if ((sm->num_workers > 1)
+ && create_bypass_for_fwd_worker (sm, b0, ip0,
+ rx_fib_index0,
+ thread_index))
+ {
+ next[0] = NAT_NEXT_OUT2IN_ED_HANDOFF;
+ }
else
- create_bypass_for_fwd (sm, b0, ip0, rx_fib_index0,
- thread_index);
+ {
+ create_bypass_for_fwd (sm, b0, ip0, rx_fib_index0,
+ thread_index);
+ }
}
}
goto trace0;
}
vlib_increment_simple_counter (&sm->counters.slowpath.out2in_ed.tcp,
thread_index, sw_if_index0, 1);
- if (nat44_set_tcp_session_state_o2i
- (sm, now, s0, vnet_buffer (b0)->ip.reass.icmp_type_or_tcp_flags,
- vnet_buffer (b0)->ip.reass.tcp_ack_number,
- vnet_buffer (b0)->ip.reass.tcp_seq_number, thread_index))
- goto trace0;
+ nat44_set_tcp_session_state_o2i (sm, now, s0,
+ vnet_buffer (b0)->ip.
+ reass.icmp_type_or_tcp_flags,
+ vnet_buffer (b0)->ip.
+ reass.tcp_ack_number,
+ vnet_buffer (b0)->ip.
+ reass.tcp_seq_number,
+ thread_index);
}
else if (!vnet_buffer (b0)->ip.reass.is_non_first_fragment
&& udp0->checksum)
return frame->n_vectors;
}
+static inline uword
+nat_handoff_node_fn_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame, u32 fq_index)
+{
+ u32 n_enq, n_left_from, *from;
+
+ u16 thread_indices[VLIB_FRAME_SIZE], *ti = thread_indices;
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+
+ vlib_get_buffers (vm, from, b, n_left_from);
+
+ while (n_left_from >= 4)
+ {
+ if (PREDICT_TRUE (n_left_from >= 8))
+ {
+ vlib_prefetch_buffer_header (b[4], LOAD);
+ vlib_prefetch_buffer_header (b[5], LOAD);
+ vlib_prefetch_buffer_header (b[6], LOAD);
+ vlib_prefetch_buffer_header (b[7], LOAD);
+ CLIB_PREFETCH (&b[4]->data, CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (&b[5]->data, CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (&b[6]->data, CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (&b[7]->data, CLIB_CACHE_LINE_BYTES, LOAD);
+ }
+
+ ti[0] = vnet_buffer2 (b[0])->nat.thread_next;
+ ti[1] = vnet_buffer2 (b[1])->nat.thread_next;
+ ti[2] = vnet_buffer2 (b[2])->nat.thread_next;
+ ti[3] = vnet_buffer2 (b[3])->nat.thread_next;
+
+ b += 4;
+ ti += 4;
+ n_left_from -= 4;
+ }
+
+ while (n_left_from > 0)
+ {
+ ti[0] = vnet_buffer2 (b[0])->nat.thread_next;
+
+ b += 1;
+ ti += 1;
+ n_left_from -= 1;
+ }
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
+ {
+ u32 i;
+ b = bufs;
+ ti = thread_indices;
+
+ for (i = 0; i < frame->n_vectors; i++)
+ {
+ if (b[0]->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ nat44_ed_out2in_handoff_trace_t *t =
+ vlib_add_trace (vm, node, b[0], sizeof (*t));
+ t->thread_next = ti[0];
+ b += 1;
+ ti += 1;
+ }
+ else
+ break;
+ }
+ }
+
+ 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,
+ NAT44_HANDOFF_ERROR_CONGESTION_DROP,
+ frame->n_vectors - n_enq);
+ }
+
+ return frame->n_vectors;
+}
+
VLIB_NODE_FN (nat44_ed_out2in_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
};
/* *INDENT-ON* */
+static u8 *
+format_nat44_ed_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 *);
+ nat44_ed_out2in_handoff_trace_t *t =
+ va_arg (*args, nat44_ed_out2in_handoff_trace_t *);
+ return format (s, "out2in ed handoff thread_next index %d", t->thread_next);
+}
+
+VLIB_NODE_FN (nat44_ed_out2in_handoff_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return nat_handoff_node_fn_inline (vm, node, frame,
+ snat_main.ed_out2in_node_index);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (nat44_ed_out2in_handoff_node) = {
+ .name = "nat44-ed-out2in-handoff",
+ .vector_size = sizeof (u32),
+ .sibling_of = "nat-default",
+ .format_trace = format_nat44_ed_out2in_handoff_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = 0,
+};
+/* *INDENT-ON* */
+
static u8 *
format_nat_pre_trace (u8 * s, va_list * args)
{
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