#include <nat/nat44/inlines.h>
#include <nat/nat_syslog.h>
#include <nat/nat_ha.h>
+#include <nat/nat44/ed_inlines.h>
static char *nat_out2in_ed_error_strings[] = {
#define _(sym,string) string,
vlib_node_runtime_t * node, u32 next0, f64 now,
u32 thread_index, snat_session_t ** p_s0)
{
+ vlib_main_t *vm = vlib_get_main ();
+
next0 = icmp_out2in (sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node,
next0, thread_index, p_s0, 0);
snat_session_t *s0 = *p_s0;
/* Accounting */
nat44_session_update_counters (s0, now,
vlib_buffer_length_in_chain
- (sm->vlib_main, b0), thread_index);
+ (vm, b0), thread_index);
/* Per-user LRU list maintenance */
nat44_session_update_lru (sm, s0, thread_index);
}
}
else
{
- proto = snat_proto_to_ip_proto (s->in2out.protocol);
+ proto = nat_proto_to_ip_proto (s->in2out.protocol);
l_port = s->in2out.port;
r_port = s->ext_host_port;
}
r_addr = &s->ext_host_nat_addr;
r_port = s->ext_host_nat_port;
}
- make_ed_kv (l_addr, r_addr, proto, fib_index, l_port, r_port, ~0ULL,
+ make_ed_kv (l_addr, r_addr, proto, fib_index, l_port, r_port, ~0, ~0,
&ed_kv);
if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0))
nat_elog_warn ("in2out_ed key del failed");
snat_free_outside_address_and_port (sm->addresses, ctx->thread_index,
&s->out2in);
delete:
- nat44_ed_delete_session (sm, s, ctx->thread_index, 1);
+ nat_ed_session_delete (sm, s, ctx->thread_index, 1);
return 1;
}
snat_session_key_t l_key,
snat_session_key_t e_key,
vlib_node_runtime_t * node,
+ u32 rx_fib_index,
u32 thread_index,
twice_nat_type_t twice_nat,
lb_nat_type_t lb_nat, f64 now)
snat_session_key_t eh_key;
nat44_is_idle_session_ctx_t ctx;
- if (PREDICT_FALSE (nat44_maximum_sessions_exceeded (sm, thread_index)))
+ if (PREDICT_FALSE
+ (nat44_ed_maximum_sessions_exceeded (sm, rx_fib_index, thread_index)))
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_MAX_SESSIONS_EXCEEDED];
nat_elog_notice ("maximum sessions exceeded");
return 0;
}
- s = nat_ed_session_alloc (sm, thread_index, now);
+ s = nat_ed_session_alloc (sm, thread_index, now, e_key.protocol);
if (!s)
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_MAX_USER_SESS_EXCEEDED];
udp = ip4_next_header (ip);
s->ext_host_addr.as_u32 = ip->src_address.as_u32;
- s->ext_host_port = e_key.protocol == SNAT_PROTOCOL_ICMP ? 0 : udp->src_port;
+ s->ext_host_port = e_key.protocol == NAT_PROTOCOL_ICMP ? 0 : udp->src_port;
s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING;
if (lb_nat)
s->flags |= SNAT_SESSION_FLAG_LOAD_BALANCING;
/* Add to lookup tables */
make_ed_kv (&e_key.addr, &s->ext_host_addr, ip->protocol,
- e_key.fib_index, e_key.port, s->ext_host_port,
+ e_key.fib_index, e_key.port, s->ext_host_port, thread_index,
s - tsm->sessions, &kv);
ctx.now = now;
ctx.thread_index = thread_index;
- if (clib_bihash_add_or_overwrite_stale_16_8 (&tsm->out2in_ed, &kv,
+ if (clib_bihash_add_or_overwrite_stale_16_8 (&sm->out2in_ed, &kv,
nat44_o2i_ed_is_idle_session_cb,
&ctx))
nat_elog_notice ("out2in-ed key add failed");
tsm->snat_thread_index))
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_OUT_OF_PORTS];
- nat44_ed_delete_session (sm, s, thread_index, 1);
- if (clib_bihash_add_del_16_8 (&tsm->out2in_ed, &kv, 0))
+ nat_ed_session_delete (sm, s, thread_index, 1);
+ if (clib_bihash_add_del_16_8 (&sm->out2in_ed, &kv, 0))
nat_elog_notice ("out2in-ed key del failed");
return 0;
}
s->flags |= SNAT_SESSION_FLAG_TWICE_NAT;
make_ed_kv (&l_key.addr, &s->ext_host_nat_addr, ip->protocol,
l_key.fib_index, l_key.port, s->ext_host_nat_port,
- s - tsm->sessions, &kv);
+ thread_index, s - tsm->sessions, &kv);
}
else
{
make_ed_kv (&l_key.addr, &s->ext_host_addr, ip->protocol,
- l_key.fib_index, l_key.port, s->ext_host_port,
+ l_key.fib_index, l_key.port, s->ext_host_port, thread_index,
s - tsm->sessions, &kv);
}
if (clib_bihash_add_or_overwrite_stale_16_8 (&tsm->in2out_ed, &kv,
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
make_ed_kv (&ip->src_address, &ip->dst_address, ip->protocol,
- rx_fib_index, src_port, dst_port, ~0ULL, &kv);
+ rx_fib_index, src_port, dst_port, ~0, ~0, &kv);
if (!clib_bihash_search_16_8 (&tsm->in2out_ed, &kv, &value))
return 1;
udp_header_t *udp;
snat_session_t *s = 0;
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
- f64 now = vlib_time_now (sm->vlib_main);
+ vlib_main_t *vm = vlib_get_main ();
+ f64 now = vlib_time_now (vm);
u16 l_port, r_port;
if (ip->protocol == IP_PROTOCOL_ICMP)
{
if (get_icmp_o2i_ed_key
- (b, ip, rx_fib_index, ~0ULL, 0, &l_port, &r_port, &kv))
+ (b, ip, rx_fib_index, ~0, ~0, 0, &l_port, &r_port, &kv))
return;
}
else
r_port = 0;
}
make_ed_kv (&ip->dst_address, &ip->src_address, ip->protocol,
- rx_fib_index, l_port, r_port, ~0ULL, &kv);
+ rx_fib_index, l_port, r_port, ~0, ~0, &kv);
}
if (!clib_bihash_search_16_8 (&tsm->in2out_ed, &kv, &value))
{
- s = pool_elt_at_index (tsm->sessions, value.value);
+ ASSERT (thread_index == ed_value_get_thread_index (&value));
+ s =
+ pool_elt_at_index (tsm->sessions,
+ ed_value_get_session_index (&value));
}
else
{
u32 proto;
- if (PREDICT_FALSE (nat44_maximum_sessions_exceeded (sm, thread_index)))
+ if (PREDICT_FALSE
+ (nat44_ed_maximum_sessions_exceeded
+ (sm, rx_fib_index, thread_index)))
return;
- s = nat_ed_session_alloc (sm, thread_index, now);
+ s = nat_ed_session_alloc (sm, thread_index, now, ip->protocol);
if (!s)
{
nat_elog_warn ("create NAT session failed");
return;
}
- proto = ip_proto_to_snat_proto (ip->protocol);
+ proto = ip_proto_to_nat_proto (ip->protocol);
s->ext_host_addr = ip->src_address;
s->ext_host_port = r_port;
s->out2in.addr = ip->dst_address;
s->out2in.port = l_port;
s->out2in.protocol = proto;
- if (proto == ~0)
+ if (proto == NAT_PROTOCOL_OTHER)
{
s->flags |= SNAT_SESSION_FLAG_UNKNOWN_PROTO;
s->out2in.port = ip->protocol;
u8 dont_translate = 0, is_addr_only, identity_nat;
snat_session_key_t e_key, l_key;
u16 l_port, r_port;
+ vlib_main_t *vm = vlib_get_main ();
sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX];
rx_fib_index = ip4_fib_table_get_index_for_sw_if_index (sw_if_index);
if (get_icmp_o2i_ed_key
- (b, ip, rx_fib_index, ~0ULL, p_proto, &l_port, &r_port, &kv))
+ (b, ip, rx_fib_index, ~0, ~0, p_proto, &l_port, &r_port, &kv))
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_UNSUPPORTED_PROTOCOL];
next = NAT_NEXT_DROP;
goto out;
}
- if (clib_bihash_search_16_8 (&tsm->out2in_ed, &kv, &value))
+ if (clib_bihash_search_16_8 (&sm->out2in_ed, &kv, &value))
{
/* Try to match static mapping */
e_key.addr = ip->dst_address;
e_key.port = l_port;
- e_key.protocol = ip_proto_to_snat_proto (ip->protocol);
+ e_key.protocol = ip_proto_to_nat_proto (ip->protocol);
e_key.fib_index = rx_fib_index;
if (snat_static_mapping_match
(sm, e_key, &l_key, 1, &is_addr_only, 0, 0, 0, &identity_nat))
/* Create session initiated by host from external network */
s = create_session_for_static_mapping_ed (sm, b, l_key, e_key, node,
- thread_index, 0, 0,
- vlib_time_now
- (sm->vlib_main));
+ rx_fib_index, thread_index, 0,
+ 0, vlib_time_now (vm));
if (!s)
{
goto out;
}
- s = pool_elt_at_index (tsm->sessions, value.value);
+ ASSERT (thread_index == ed_value_get_thread_index (&value));
+ s =
+ pool_elt_at_index (tsm->sessions,
+ ed_value_get_session_index (&value));
}
out:
if (s)
old_addr = ip->dst_address.as_u32;
make_ed_kv (&ip->dst_address, &ip->src_address, ip->protocol, rx_fib_index,
- 0, 0, ~0ULL, &s_kv);
+ 0, 0, ~0, ~0, &s_kv);
- if (!clib_bihash_search_16_8 (&tsm->out2in_ed, &s_kv, &s_value))
+ if (!clib_bihash_search_16_8 (&sm->out2in_ed, &s_kv, &s_value))
{
- s = pool_elt_at_index (tsm->sessions, s_value.value);
+ ASSERT (thread_index == ed_value_get_thread_index (&s_value));
+ s =
+ pool_elt_at_index (tsm->sessions,
+ ed_value_get_session_index (&s_value));
new_addr = ip->dst_address.as_u32 = s->in2out.addr.as_u32;
}
else
{
- if (PREDICT_FALSE (nat44_maximum_sessions_exceeded (sm, thread_index)))
+ if (PREDICT_FALSE
+ (nat44_ed_maximum_sessions_exceeded
+ (sm, rx_fib_index, thread_index)))
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_MAX_SESSIONS_EXCEEDED];
nat_elog_notice ("maximum sessions exceeded");
new_addr = ip->dst_address.as_u32 = m->local_addr.as_u32;
/* Create a new session */
- s = nat_ed_session_alloc (sm, thread_index, now);
+ s = nat_ed_session_alloc (sm, thread_index, now, ip->protocol);
if (!s)
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_MAX_USER_SESS_EXCEEDED];
/* Add to lookup tables */
s_kv.value = s - tsm->sessions;
- if (clib_bihash_add_del_16_8 (&tsm->out2in_ed, &s_kv, 1))
+ if (clib_bihash_add_del_16_8 (&sm->out2in_ed, &s_kv, 1))
nat_elog_notice ("out2in key add failed");
make_ed_kv (&ip->dst_address, &ip->src_address, ip->protocol,
- m->fib_index, 0, 0, s - tsm->sessions, &s_kv);
+ m->fib_index, 0, 0, thread_index, s - tsm->sessions, &s_kv);
if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &s_kv, 1))
nat_elog_notice ("in2out key add failed");
}
static inline uword
nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_frame_t * frame,
+ int is_multi_worker)
{
u32 n_left_from, *from, *to_next, pkts_processed = 0, stats_node_index;
nat_next_t next_index;
udp0 = ip4_next_header (ip0);
tcp0 = (tcp_header_t *) udp0;
- proto0 = ip_proto_to_snat_proto (ip0->protocol);
+ proto0 = ip_proto_to_nat_proto (ip0->protocol);
- if (PREDICT_FALSE (proto0 == ~0))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_OTHER))
{
next0 = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace0;
}
- if (PREDICT_FALSE (proto0 == SNAT_PROTOCOL_ICMP))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_ICMP))
{
next0 = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace0;
make_ed_kv (&ip0->dst_address, &ip0->src_address,
ip0->protocol, rx_fib_index0,
vnet_buffer (b0)->ip.reass.l4_dst_port,
- vnet_buffer (b0)->ip.reass.l4_src_port, ~0ULL, &kv0);
+ vnet_buffer (b0)->ip.reass.l4_src_port, ~0, ~0, &kv0);
+
+ /* there is a stashed index in vnet_buffer2 from handoff node,
+ * see if we can use it */
+ if (is_multi_worker && PREDICT_TRUE
+ (!pool_is_free_index
+ (tsm->sessions,
+ vnet_buffer2 (b0)->nat.ed_out2in_nat_session_index)))
+ {
+ s0 = pool_elt_at_index (tsm->sessions,
+ vnet_buffer2 (b0)->
+ nat.ed_out2in_nat_session_index);
+ if (PREDICT_TRUE
+ (s0->out2in.addr.as_u32 == ip0->dst_address.as_u32
+ && s0->out2in.port ==
+ vnet_buffer (b0)->ip.reass.l4_dst_port
+ && s0->out2in.protocol ==
+ ip_proto_to_nat_proto (ip0->protocol)
+ && s0->out2in.fib_index == rx_fib_index0
+ && s0->ext_host_addr.as_u32 == ip0->src_address.as_u32
+ && s0->ext_host_port ==
+ vnet_buffer (b0)->ip.reass.l4_src_port))
+ {
+ /* yes, this is the droid we're looking for */
+ goto skip_lookup;
+ }
+ }
- if (clib_bihash_search_16_8 (&tsm->out2in_ed, &kv0, &value0))
+ if (clib_bihash_search_16_8 (&sm->out2in_ed, &kv0, &value0))
{
next0 = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace0;
}
- s0 = pool_elt_at_index (tsm->sessions, value0.value);
+ ASSERT (thread_index == ed_value_get_thread_index (&value0));
+ s0 =
+ pool_elt_at_index (tsm->sessions,
+ ed_value_get_session_index (&value0));
- if (s0->tcp_close_timestamp)
+ skip_lookup:
+ if (s0->tcp_closed_timestamp)
{
- if (now >= s0->tcp_close_timestamp)
+ if (now >= s0->tcp_closed_timestamp)
{
// session is closed, go slow path
next0 = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
{
// session is closed, go slow path
nat_free_session_data (sm, s0, thread_index, 0);
- nat44_ed_delete_session (sm, s0, thread_index, 1);
+ nat_ed_session_delete (sm, s0, thread_index, 1);
next0 = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace0;
}
old_port0 = vnet_buffer (b0)->ip.reass.l4_dst_port;
- if (PREDICT_TRUE (proto0 == SNAT_PROTOCOL_TCP))
+ if (PREDICT_TRUE (proto0 == NAT_PROTOCOL_TCP))
{
if (!vnet_buffer (b0)->ip.reass.is_non_first_fragment)
{
udp0 = ip4_next_header (ip0);
tcp0 = (tcp_header_t *) udp0;
icmp0 = (icmp46_header_t *) udp0;
- proto0 = ip_proto_to_snat_proto (ip0->protocol);
+ proto0 = ip_proto_to_nat_proto (ip0->protocol);
- if (PREDICT_FALSE (proto0 == ~0))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_OTHER))
{
s0 =
nat44_ed_out2in_unknown_proto (sm, b0, ip0, rx_fib_index0,
goto trace0;
}
- if (PREDICT_FALSE (proto0 == SNAT_PROTOCOL_ICMP))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_ICMP))
{
next0 = icmp_out2in_ed_slow_path
(sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node,
make_ed_kv (&ip0->dst_address, &ip0->src_address,
ip0->protocol, rx_fib_index0,
vnet_buffer (b0)->ip.reass.l4_dst_port,
- vnet_buffer (b0)->ip.reass.l4_src_port, ~0ULL, &kv0);
+ vnet_buffer (b0)->ip.reass.l4_src_port, ~0, ~0, &kv0);
s0 = NULL;
- if (!clib_bihash_search_16_8 (&tsm->out2in_ed, &kv0, &value0))
+ if (!clib_bihash_search_16_8 (&sm->out2in_ed, &kv0, &value0))
{
- s0 = pool_elt_at_index (tsm->sessions, value0.value);
+ ASSERT (thread_index == ed_value_get_thread_index (&value0));
+ s0 =
+ pool_elt_at_index (tsm->sessions,
+ ed_value_get_session_index (&value0));
- if (s0->tcp_close_timestamp && now >= s0->tcp_close_timestamp)
+ if (s0->tcp_closed_timestamp && now >= s0->tcp_closed_timestamp)
{
nat_free_session_data (sm, s0, thread_index, 0);
- nat44_ed_delete_session (sm, s0, thread_index, 1);
+ nat_ed_session_delete (sm, s0, thread_index, 1);
s0 = NULL;
}
}
* Send DHCP packets to the ipv4 stack, or we won't
* be able to use dhcp client on the outside interface
*/
- if (PREDICT_FALSE (proto0 == SNAT_PROTOCOL_UDP
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_UDP
&& (vnet_buffer (b0)->ip.
reass.l4_dst_port ==
clib_host_to_net_u16
if (PREDICT_FALSE (identity_nat0))
goto trace0;
- if ((proto0 == SNAT_PROTOCOL_TCP)
+ if ((proto0 == NAT_PROTOCOL_TCP)
&& !tcp_flags_is_init (vnet_buffer (b0)->ip.
reass.icmp_type_or_tcp_flags))
{
/* Create session initiated by host from external network */
s0 = create_session_for_static_mapping_ed (sm, b0, l_key0,
e_key0, node,
+ rx_fib_index0,
thread_index,
twice_nat0,
lb_nat0, now);
old_port0 = vnet_buffer (b0)->ip.reass.l4_dst_port;
- if (PREDICT_TRUE (proto0 == SNAT_PROTOCOL_TCP))
+ if (PREDICT_TRUE (proto0 == NAT_PROTOCOL_TCP))
{
if (!vnet_buffer (b0)->ip.reass.is_non_first_fragment)
{
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return nat44_ed_out2in_fast_path_node_fn_inline (vm, node, frame);
+ if (snat_main.num_workers > 1)
+ {
+ return nat44_ed_out2in_fast_path_node_fn_inline (vm, node, frame, 1);
+ }
+ else
+ {
+ return nat44_ed_out2in_fast_path_node_fn_inline (vm, node, frame, 0);
+ }
}
/* *INDENT-OFF* */
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
nat_pre_trace_t *t = va_arg (*args, nat_pre_trace_t *);
- return format (s, "out2in next_index %d", t->next_index);
+ return format (s, "out2in next_index %d arc_next_index %d", t->next_index,
+ t->arc_next_index);
}
VLIB_NODE_FN (nat_pre_out2in_node) (vlib_main_t * vm,
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