#include <vnet/udp/udp_local.h>
#include <vppinfra/error.h>
-#include <nat/lib/nat_syslog.h>
#include <nat/lib/nat_inlines.h>
#include <nat/lib/ipfix_logging.h>
#include <nat/nat44-ed/nat44_ed.h>
#include <nat/nat44-ed/nat44_ed_inlines.h>
-/* number of attempts to get a port for ED overloading algorithm, if rolling
- * a dice this many times doesn't produce a free port, it's treated
- * as if there were no free ports available to conserve resources */
-#define ED_PORT_ALLOC_ATTEMPTS (10)
-
static char *nat_in2out_ed_error_strings[] = {
#define _(sym,string) string,
foreach_nat_in2out_ed_error
u8 is_slow_path;
u8 translation_via_i2of;
u8 lookup_skipped;
+ u8 tcp_state;
} nat_in2out_ed_trace_t;
static u8 *
{
if (t->lookup_skipped)
{
- s = format (s, "\n lookup skipped - cached session index used");
+ s = format (s, "\n lookup skipped - cached session index used");
}
else
{
&t->search_key);
}
}
+ if (IP_PROTOCOL_TCP == t->i2of.match.proto)
+ {
+ s = format (s, "\n TCP state: %U", format_nat44_ed_tcp_state,
+ t->tcp_state);
+ }
return s;
}
* @param rt NAT runtime data
* @param sw_if_index0 index of the inside interface
* @param ip0 IPv4 header
- * @param proto0 NAT protocol
* @param rx_fib_index0 RX FIB index
*
* @returns 0 if packet should be translated otherwise 1
*/
static inline int
snat_not_translate_fast (snat_main_t *sm, vlib_node_runtime_t *node,
- u32 sw_if_index0, ip4_header_t *ip0, u32 proto0,
+ u32 sw_if_index0, ip4_header_t *ip0,
u32 rx_fib_index0)
{
fib_node_index_t fei = FIB_NODE_INDEX_INVALID;
pool_foreach (i, sm->interfaces)
{
/* NAT packet aimed at outside interface */
- if ((nat_interface_is_outside (i)) &&
+ if ((nat44_ed_is_interface_outside (i)) &&
(sw_if_index == i->sw_if_index))
return 0;
}
static int
nat_ed_alloc_addr_and_port_with_snat_address (
- snat_main_t *sm, u32 nat_proto, u32 thread_index, snat_address_t *a,
+ snat_main_t *sm, u8 proto, u32 thread_index, snat_address_t *a,
u16 port_per_thread, u32 snat_thread_index, snat_session_t *s,
ip4_address_t *outside_addr, u16 *outside_port)
{
u16 attempts = ED_PORT_ALLOC_ATTEMPTS;
do
{
- if (NAT_PROTOCOL_ICMP == nat_proto)
+ if (IP_PROTOCOL_ICMP == proto)
{
s->o2i.match.sport = clib_host_to_net_u16 (port);
}
s->o2i.match.dport = clib_host_to_net_u16 (port);
if (0 == nat_ed_ses_o2i_flow_hash_add_del (sm, thread_index, s, 2))
{
-#define _(N, i, n, s) \
- case NAT_PROTOCOL_##N: \
- ++a->busy_##n##_port_refcounts[port]; \
- a->busy_##n##_ports_per_thread[thread_index]++; \
- a->busy_##n##_ports++; \
- break;
- switch (nat_proto)
- {
- foreach_nat_protocol;
- default:
- nat_elog_info (sm, "unknown protocol");
- return 1;
- }
-#undef _
*outside_addr = a->addr;
*outside_port = clib_host_to_net_u16 (port);
return 0;
}
static int
-nat_ed_alloc_addr_and_port (snat_main_t *sm, u32 rx_fib_index, u32 nat_proto,
+nat_ed_alloc_addr_and_port (snat_main_t *sm, u32 rx_fib_index,
+ u32 tx_sw_if_index, u32 nat_proto,
u32 thread_index, ip4_address_t s_addr,
- u16 port_per_thread, u32 snat_thread_index,
+ ip4_address_t d_addr, u32 snat_thread_index,
snat_session_t *s, ip4_address_t *outside_addr,
u16 *outside_port)
{
- int i;
- snat_address_t *a, *ga = 0;
-
if (vec_len (sm->addresses) > 0)
{
- int s_addr_offset = s_addr.as_u32 % vec_len (sm->addresses);
+ u32 s_addr_offset = s_addr.as_u32 % vec_len (sm->addresses);
+ snat_address_t *a, *ja = 0, *ra = 0, *ba = 0;
+ int i;
- for (i = s_addr_offset; i < vec_len (sm->addresses); ++i)
+ // output feature
+ if (tx_sw_if_index != ~0)
{
- a = sm->addresses + i;
- if (a->fib_index == rx_fib_index)
+ for (i = s_addr_offset; i < vec_len (sm->addresses); ++i)
{
- return nat_ed_alloc_addr_and_port_with_snat_address (
- sm, nat_proto, thread_index, a, port_per_thread,
- snat_thread_index, s, outside_addr, outside_port);
+ a = sm->addresses + i;
+ if (a->fib_index == rx_fib_index)
+ {
+ if (a->sw_if_index == tx_sw_if_index)
+ {
+ if ((a->addr_len != ~0) &&
+ (a->net.as_u32 ==
+ (d_addr.as_u32 & ip4_main.fib_masks[a->addr_len])))
+
+ {
+ return nat_ed_alloc_addr_and_port_with_snat_address (
+ sm, nat_proto, thread_index, a,
+ sm->port_per_thread, snat_thread_index, s,
+ outside_addr, outside_port);
+ }
+ ra = a;
+ }
+ ja = a;
+ }
+ else if (a->fib_index == ~0)
+ {
+ ba = a;
+ }
}
- else if (a->fib_index == ~0)
+ for (i = 0; i < s_addr_offset; ++i)
{
- ga = a;
+ a = sm->addresses + i;
+ if (a->fib_index == rx_fib_index)
+ {
+ if (a->sw_if_index == tx_sw_if_index)
+ {
+ if ((a->addr_len != ~0) &&
+ (a->net.as_u32 ==
+ (d_addr.as_u32 & ip4_main.fib_masks[a->addr_len])))
+
+ {
+ return nat_ed_alloc_addr_and_port_with_snat_address (
+ sm, nat_proto, thread_index, a,
+ sm->port_per_thread, snat_thread_index, s,
+ outside_addr, outside_port);
+ }
+ ra = a;
+ }
+ ja = a;
+ }
+ else if (a->fib_index == ~0)
+ {
+ ba = a;
+ }
}
- }
-
- for (i = 0; i < s_addr_offset; ++i)
- {
- a = sm->addresses + i;
- if (a->fib_index == rx_fib_index)
+ if (ra)
{
return nat_ed_alloc_addr_and_port_with_snat_address (
- sm, nat_proto, thread_index, a, port_per_thread,
+ sm, nat_proto, thread_index, ra, sm->port_per_thread,
snat_thread_index, s, outside_addr, outside_port);
}
- else if (a->fib_index == ~0)
+ }
+ else
+ {
+ // first try nat pool addresses to sw interface addreses mappings
+ for (i = s_addr_offset; i < vec_len (sm->addresses); ++i)
{
- ga = a;
+ a = sm->addresses + i;
+ if (a->fib_index == rx_fib_index)
+ {
+ if ((a->addr_len != ~0) &&
+ (a->net.as_u32 ==
+ (d_addr.as_u32 & ip4_main.fib_masks[a->addr_len])))
+ {
+ return nat_ed_alloc_addr_and_port_with_snat_address (
+ sm, nat_proto, thread_index, a, sm->port_per_thread,
+ snat_thread_index, s, outside_addr, outside_port);
+ }
+ ja = a;
+ }
+ else if (a->fib_index == ~0)
+ {
+ ba = a;
+ }
+ }
+ for (i = 0; i < s_addr_offset; ++i)
+ {
+ a = sm->addresses + i;
+ if (a->fib_index == rx_fib_index)
+ {
+ if ((a->addr_len != ~0) &&
+ (a->net.as_u32 ==
+ (d_addr.as_u32 & ip4_main.fib_masks[a->addr_len])))
+ {
+ return nat_ed_alloc_addr_and_port_with_snat_address (
+ sm, nat_proto, thread_index, a, sm->port_per_thread,
+ snat_thread_index, s, outside_addr, outside_port);
+ }
+ ja = a;
+ }
+ else if (a->fib_index == ~0)
+ {
+ ba = a;
+ }
}
}
- if (ga)
+ if (ja || ba)
{
+ a = ja ? ja : ba;
return nat_ed_alloc_addr_and_port_with_snat_address (
- sm, nat_proto, thread_index, a, port_per_thread, snat_thread_index,
- s, outside_addr, outside_port);
+ sm, nat_proto, thread_index, a, sm->port_per_thread,
+ snat_thread_index, s, outside_addr, outside_port);
}
}
/* Totally out of translations to use... */
.fp_addr = {.ip4.as_u32 = addr.as_u32,}
,
};
- // TODO: multiple vrfs none can resolve addr
vec_foreach (outside_fib, sm->outside_fibs)
{
fei = fib_table_lookup (outside_fib->fib_index, &pfx);
static_always_inline int
nat44_ed_external_sm_lookup (snat_main_t *sm, ip4_address_t match_addr,
- u16 match_port, nat_protocol_t match_protocol,
- u32 match_fib_index, ip4_address_t *daddr,
- u16 *dport)
+ u16 match_port, ip_protocol_t match_protocol,
+ ip4_address_t *daddr, u16 *dport)
{
- clib_bihash_kv_8_8_t kv, value;
- init_nat_k (&kv, match_addr, match_port, match_fib_index, match_protocol);
- if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
+ snat_static_mapping_t *m =
+ nat44_ed_sm_o2i_lookup (sm, match_addr, match_port, 0, match_protocol);
+ if (!m)
{
/* Try address only mapping */
- init_nat_k (&kv, match_addr, 0, 0, 0);
- if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv,
- &value))
+ m = nat44_ed_sm_o2i_lookup (sm, match_addr, 0, 0, 0);
+ if (!m)
return 0;
}
-
- snat_static_mapping_t *m =
- pool_elt_at_index (sm->static_mappings, value.value);
*daddr = m->local_addr;
if (dport)
{
static u32
slow_path_ed (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b,
ip4_address_t l_addr, ip4_address_t r_addr, u16 l_port,
- u16 r_port, u8 proto, u32 rx_fib_index,
+ u16 r_port, u8 proto, u32 rx_fib_index, u32 tx_sw_if_index,
snat_session_t **sessionp, vlib_node_runtime_t *node, u32 next,
u32 thread_index, f64 now)
{
u32 outside_fib_index;
u8 is_identity_nat = 0;
- u32 nat_proto = ip_proto_to_nat_proto (proto);
snat_session_t *s = NULL;
lb_nat_type_t lb = 0;
ip4_address_t daddr = r_addr;
u32 sm_fib_index;
/* First try to match static mapping by local address and port */
int is_sm;
- if (snat_static_mapping_match (vm, sm, l_addr, l_port, rx_fib_index,
- nat_proto, &sm_addr, &sm_port, &sm_fib_index,
- 0, 0, 0, &lb, 0, &is_identity_nat, 0))
+ if (snat_static_mapping_match (vm, sm, l_addr, l_port, rx_fib_index, proto,
+ &sm_addr, &sm_port, &sm_fib_index, 0, 0, 0,
+ &lb, 0, &is_identity_nat, 0))
{
is_sm = 0;
}
is_sm = 1;
}
- if (PREDICT_TRUE (nat_proto == NAT_PROTOCOL_TCP))
+ if (PREDICT_TRUE (proto == IP_PROTOCOL_TCP))
{
if (PREDICT_FALSE (!tcp_flags_is_init (
vnet_buffer (b)->ip.reass.icmp_type_or_tcp_flags)))
{
s->in2out.addr = l_addr;
s->in2out.port = l_port;
- s->nat_proto = nat_proto;
+ s->proto = proto;
s->in2out.fib_index = rx_fib_index;
s->out2in.fib_index = outside_fib_index;
outside_port = l_port;
// hairpinning?
- int is_hairpinning = nat44_ed_external_sm_lookup (
- sm, r_addr, r_port, nat_proto, outside_fib_index, &daddr, &dport);
+ int is_hairpinning = nat44_ed_external_sm_lookup (sm, r_addr, r_port,
+ proto, &daddr, &dport);
s->flags |= is_hairpinning * SNAT_SESSION_FLAG_HAIRPINNING;
// destination addr/port updated with real values in
nat_6t_o2i_flow_init (sm, thread_index, s, daddr, dport, daddr, 0,
s->out2in.fib_index, proto);
nat_6t_flow_daddr_rewrite_set (&s->o2i, l_addr.as_u32);
- if (NAT_PROTOCOL_ICMP == nat_proto)
+ if (IP_PROTOCOL_ICMP == proto)
{
nat_6t_flow_icmp_id_rewrite_set (&s->o2i, l_port);
}
nat_6t_flow_txfib_rewrite_set (&s->o2i, rx_fib_index);
if (nat_ed_alloc_addr_and_port (
- sm, rx_fib_index, nat_proto, thread_index, l_addr,
- sm->port_per_thread, tsm->snat_thread_index, s, &outside_addr,
- &outside_port))
+ sm, rx_fib_index, tx_sw_if_index, proto, thread_index, l_addr,
+ r_addr, tsm->snat_thread_index, s, &outside_addr, &outside_port))
{
nat_elog_notice (sm, "addresses exhausted");
b->error = node->errors[NAT_IN2OUT_ED_ERROR_OUT_OF_PORTS];
s->out2in.port = outside_port = sm_port;
s->in2out.addr = l_addr;
s->in2out.port = l_port;
- s->nat_proto = nat_proto;
+ s->proto = proto;
s->in2out.fib_index = rx_fib_index;
s->out2in.fib_index = outside_fib_index;
s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING;
// hairpinning?
- int is_hairpinning = nat44_ed_external_sm_lookup (
- sm, r_addr, r_port, nat_proto, outside_fib_index, &daddr, &dport);
+ int is_hairpinning = nat44_ed_external_sm_lookup (sm, r_addr, r_port,
+ proto, &daddr, &dport);
s->flags |= is_hairpinning * SNAT_SESSION_FLAG_HAIRPINNING;
- if (NAT_PROTOCOL_ICMP == nat_proto)
+ if (IP_PROTOCOL_ICMP == proto)
{
nat_6t_o2i_flow_init (sm, thread_index, s, daddr, sm_port, sm_addr,
sm_port, s->out2in.fib_index, proto);
if (lb)
s->flags |= SNAT_SESSION_FLAG_LOAD_BALANCING;
- s->flags |= SNAT_SESSION_FLAG_ENDPOINT_DEPENDENT;
s->ext_host_addr = r_addr;
s->ext_host_port = r_port;
nat_6t_flow_saddr_rewrite_set (&s->i2o, outside_addr.as_u32);
nat_6t_flow_daddr_rewrite_set (&s->i2o, daddr.as_u32);
- if (NAT_PROTOCOL_ICMP == nat_proto)
+ if (IP_PROTOCOL_ICMP == proto)
{
nat_6t_flow_icmp_id_rewrite_set (&s->i2o, outside_port);
}
}
/* log NAT event */
- nat_ipfix_logging_nat44_ses_create (thread_index,
- s->in2out.addr.as_u32,
- s->out2in.addr.as_u32,
- s->nat_proto,
- s->in2out.port,
- s->out2in.port, s->in2out.fib_index);
+ nat_ipfix_logging_nat44_ses_create (
+ thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32, s->proto,
+ s->in2out.port, s->out2in.port, s->in2out.fib_index);
nat_syslog_nat44_sadd (0, s->in2out.fib_index, &s->in2out.addr,
s->in2out.port, &s->ext_host_nat_addr,
s->ext_host_nat_port, &s->out2in.addr, s->out2in.port,
- &s->ext_host_addr, s->ext_host_port, s->nat_proto, 0);
+ &s->ext_host_addr, s->ext_host_port, s->proto, 0);
per_vrf_sessions_register_session (s, thread_index);
error:
if (s)
{
- if (!is_sm)
- {
- snat_free_outside_address_and_port (sm->addresses, thread_index,
- &outside_addr, outside_port,
- nat_proto);
- }
nat_ed_session_delete (sm, s, thread_index, 1);
}
*sessionp = s = NULL;
nat44_ed_not_translate (vlib_main_t *vm, snat_main_t *sm,
vlib_node_runtime_t *node, u32 sw_if_index,
vlib_buffer_t *b, ip4_header_t *ip, u32 proto,
- u32 rx_fib_index, u32 thread_index)
+ u32 rx_fib_index)
{
clib_bihash_kv_16_8_t kv, value;
- init_ed_k (&kv, ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port,
- ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port,
- sm->outside_fib_index, ip->protocol);
+ init_ed_k (&kv, ip->dst_address.as_u32,
+ vnet_buffer (b)->ip.reass.l4_dst_port, ip->src_address.as_u32,
+ vnet_buffer (b)->ip.reass.l4_src_port, sm->outside_fib_index,
+ ip->protocol);
/* NAT packet aimed at external address if has active sessions */
if (clib_bihash_search_16_8 (&sm->flow_hash, &kv, &value))
if (sm->forwarding_enabled)
return 1;
- return snat_not_translate_fast (sm, node, sw_if_index, ip, proto,
- rx_fib_index);
+ return snat_not_translate_fast (sm, node, sw_if_index, ip, rx_fib_index);
}
static_always_inline int
&lookup_sport, &lookup_daddr,
&lookup_dport, &lookup_protocol))
return 0;
- init_ed_k (&kv, lookup_saddr, lookup_sport, lookup_daddr, lookup_dport,
- 0, lookup_protocol);
+ init_ed_k (&kv, lookup_saddr.as_u32, lookup_sport, lookup_daddr.as_u32,
+ lookup_dport, 0, lookup_protocol);
}
else if (ip->protocol == IP_PROTOCOL_UDP || ip->protocol == IP_PROTOCOL_TCP)
{
- init_ed_k (&kv, ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port,
- ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port, 0,
- ip->protocol);
+ init_ed_k (&kv, ip->src_address.as_u32,
+ vnet_buffer (b)->ip.reass.l4_src_port, ip->dst_address.as_u32,
+ vnet_buffer (b)->ip.reass.l4_dst_port, 0, ip->protocol);
}
else
{
- init_ed_k (&kv, ip->src_address, 0, ip->dst_address, 0, 0,
+ init_ed_k (&kv, ip->src_address.as_u32, 0, ip->dst_address.as_u32, 0, 0,
ip->protocol);
}
pool_elt_at_index (tsm->sessions,
ed_value_get_session_index (&value));
- if (is_fwd_bypass_session (s))
+ if (na44_ed_is_fwd_bypass_session (s))
{
if (ip->protocol == IP_PROTOCOL_TCP)
{
- nat44_set_tcp_session_state_i2o (sm, now, s, b, thread_index);
+ nat44_set_tcp_session_state_i2o (
+ sm, now, s, vnet_buffer (b)->ip.reass.icmp_type_or_tcp_flags,
+ thread_index);
}
/* Accounting */
nat44_session_update_counters (s, now,
ip4_header_t *ip, u16 src_port,
u16 dst_port, u32 thread_index,
u32 rx_sw_if_index, u32 tx_sw_if_index,
- f64 now, int is_multi_worker)
+ int is_multi_worker)
{
clib_bihash_kv_16_8_t kv, value;
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
u32 tx_fib_index = ip4_fib_table_get_index_for_sw_if_index (tx_sw_if_index);
/* src NAT check */
- init_ed_k (&kv, ip->src_address, src_port, ip->dst_address, dst_port,
- tx_fib_index, ip->protocol);
+ init_ed_k (&kv, ip->src_address.as_u32, src_port, ip->dst_address.as_u32,
+ dst_port, tx_fib_index, ip->protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv, &value))
{
ASSERT (thread_index == ed_value_get_thread_index (&value));
s =
pool_elt_at_index (tsm->sessions,
ed_value_get_session_index (&value));
- if (nat44_is_ses_closed (s)
- && (!s->tcp_closed_timestamp || now >= s->tcp_closed_timestamp))
- {
- nat_free_session_data (sm, s, thread_index, 0);
- nat_ed_session_delete (sm, s, thread_index, 1);
- }
return 1;
}
s = NULL;
}
- init_ed_k (&kv, ip->dst_address, dst_port, ip->src_address, src_port,
- rx_fib_index, ip->protocol);
+ init_ed_k (&kv, ip->dst_address.as_u32, dst_port, ip->src_address.as_u32,
+ src_port, rx_fib_index, ip->protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv, &value))
{
ASSERT (thread_index == ed_value_get_thread_index (&value));
ed_value_get_session_index (&value));
skip_dst_nat_lookup:
- if (is_fwd_bypass_session (s))
+ if (na44_ed_is_fwd_bypass_session (s))
return 0;
/* hairpinning */
pool_foreach (i, sm->output_feature_interfaces)
- {
- if ((nat_interface_is_inside (i)) && (rx_sw_if_index == i->sw_if_index))
- return 0;
- }
+ {
+ if ((nat44_ed_is_interface_inside (i)) &&
+ (rx_sw_if_index == i->sw_if_index))
+ return 0;
+ }
return 1;
}
static inline u32
icmp_in2out_ed_slow_path (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip,
icmp46_header_t *icmp, u32 sw_if_index,
- u32 rx_fib_index, vlib_node_runtime_t *node,
- u32 next, f64 now, u32 thread_index,
- nat_protocol_t nat_proto, snat_session_t **s_p,
+ u32 tx_sw_if_index, u32 rx_fib_index,
+ vlib_node_runtime_t *node, u32 next, f64 now,
+ u32 thread_index, snat_session_t **s_p,
int is_multi_worker)
{
vlib_main_t *vm = vlib_get_main ();
return NAT_NEXT_DROP;
}
- if (vnet_buffer (b)->sw_if_index[VLIB_TX] != ~0)
+ if (tx_sw_if_index != ~0)
{
if (PREDICT_FALSE (nat44_ed_not_translate_output_feature (
sm, b, ip, lookup_sport, lookup_dport, thread_index, sw_if_index,
- vnet_buffer (b)->sw_if_index[VLIB_TX], now, is_multi_worker)))
+ tx_sw_if_index, is_multi_worker)))
{
return next;
}
}
else
{
- if (PREDICT_FALSE (nat44_ed_not_translate (vm, sm, node, sw_if_index, b,
- ip, NAT_PROTOCOL_ICMP,
- rx_fib_index, thread_index)))
+ if (PREDICT_FALSE (nat44_ed_not_translate (
+ vm, sm, node, sw_if_index, b, ip, IP_PROTOCOL_ICMP, rx_fib_index)))
{
return next;
}
return NAT_NEXT_DROP;
}
- next = slow_path_ed (vm, sm, b, ip->src_address, ip->dst_address,
- lookup_sport, lookup_dport, ip->protocol, rx_fib_index,
- &s, node, next, thread_index, vlib_time_now (vm));
+ next =
+ slow_path_ed (vm, sm, b, ip->src_address, ip->dst_address, lookup_sport,
+ lookup_dport, ip->protocol, rx_fib_index, tx_sw_if_index, &s,
+ node, next, thread_index, vlib_time_now (vm));
if (NAT_NEXT_DROP == next)
goto out;
vlib_main_t *vm,
vlib_node_runtime_t *node)
{
- clib_bihash_kv_8_8_t kv, value;
clib_bihash_kv_16_8_t s_kv, s_value;
snat_static_mapping_t *m = NULL;
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
break;
}
- init_nat_k (&kv, ip->src_address, 0, rx_fib_index, 0);
-
/* Try to find static mapping first */
- if (!clib_bihash_search_8_8 (&sm->static_mapping_by_local, &kv, &value))
+ m = nat44_ed_sm_i2o_lookup (sm, ip->src_address, 0, rx_fib_index,
+ ip->protocol);
+ if (m)
{
- m = pool_elt_at_index (sm->static_mappings, value.value);
new_src_addr = m->external_addr;
}
else
{
if (s->ext_host_addr.as_u32 == ip->dst_address.as_u32)
{
- init_ed_k (&s_kv, s->out2in.addr, 0, ip->dst_address, 0,
- outside_fib_index, ip->protocol);
+ init_ed_k (&s_kv, s->out2in.addr.as_u32, 0,
+ ip->dst_address.as_u32, 0, outside_fib_index,
+ ip->protocol);
if (clib_bihash_search_16_8 (&sm->flow_hash, &s_kv, &s_value))
{
new_src_addr = s->out2in.addr;
{
for (i = 0; i < vec_len (sm->addresses); i++)
{
- init_ed_k (&s_kv, sm->addresses[i].addr, 0, ip->dst_address, 0,
- outside_fib_index, ip->protocol);
+ init_ed_k (&s_kv, sm->addresses[i].addr.as_u32, 0,
+ ip->dst_address.as_u32, 0, outside_fib_index,
+ ip->protocol);
if (clib_bihash_search_16_8 (&sm->flow_hash, &s_kv, &s_value))
{
new_src_addr = sm->addresses[i].addr;
nat_6t_flow_txfib_rewrite_set (&s->i2o, outside_fib_index);
// hairpinning?
- int is_hairpinning =
- nat44_ed_external_sm_lookup (sm, ip->dst_address, 0, NAT_PROTOCOL_OTHER,
- outside_fib_index, &new_dst_addr, NULL);
+ int is_hairpinning = nat44_ed_external_sm_lookup (
+ sm, ip->dst_address, 0, ip->protocol, &new_dst_addr, NULL);
s->flags |= is_hairpinning * SNAT_SESSION_FLAG_HAIRPINNING;
nat_6t_flow_daddr_rewrite_set (&s->i2o, new_dst_addr.as_u32);
nat_6t_flow_txfib_rewrite_set (&s->o2i, rx_fib_index);
s->ext_host_addr.as_u32 = ip->dst_address.as_u32;
- s->flags |= SNAT_SESSION_FLAG_UNKNOWN_PROTO;
- s->flags |= SNAT_SESSION_FLAG_ENDPOINT_DEPENDENT;
s->out2in.addr.as_u32 = new_src_addr.as_u32;
s->out2in.fib_index = outside_fib_index;
s->in2out.addr.as_u32 = ip->src_address.as_u32;
while (n_left_from > 0)
{
vlib_buffer_t *b0;
- u32 sw_if_index0, rx_fib_index0, iph_offset0 = 0;
- nat_protocol_t proto0;
+ u32 rx_sw_if_index0, rx_fib_index0, iph_offset0 = 0;
+ u32 tx_sw_if_index0;
+ u32 cntr_sw_if_index0;
+ ip_protocol_t proto0;
ip4_header_t *ip0;
snat_session_t *s0 = 0;
clib_bihash_kv_16_8_t kv0, value0;
ip0 =
(ip4_header_t *) ((u8 *) vlib_buffer_get_current (b0) + iph_offset0);
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
- rx_fib_index0 =
- fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, sw_if_index0);
+ rx_sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ tx_sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+ cntr_sw_if_index0 =
+ is_output_feature ? tx_sw_if_index0 : rx_sw_if_index0;
+ rx_fib_index0 = fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
+ rx_sw_if_index0);
lookup.fib_index = rx_fib_index0;
if (PREDICT_FALSE (!is_output_feature && ip0->ttl == 1))
goto trace0;
}
- proto0 = ip_proto_to_nat_proto (ip0->protocol);
+ proto0 = ip0->protocol;
if (is_output_feature)
{
goto trace0;
}
- if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_ICMP))
+ if (PREDICT_FALSE (proto0 == IP_PROTOCOL_ICMP))
{
if (vnet_buffer (b0)->ip.reass.icmp_type_or_tcp_flags !=
ICMP4_echo_request &&
s0 = NULL;
}
- init_ed_k (&kv0, lookup.saddr, lookup.sport, lookup.daddr, lookup.dport,
- lookup.fib_index, lookup.proto);
+ init_ed_k (&kv0, lookup.saddr.as_u32, lookup.sport, lookup.daddr.as_u32,
+ lookup.dport, lookup.fib_index, lookup.proto);
// lookup flow
if (clib_bihash_search_16_8 (&sm->flow_hash, &kv0, &value0))
if (PREDICT_FALSE (per_vrf_sessions_is_expired (s0, thread_index)))
{
// session is closed, go slow path
- nat_free_session_data (sm, s0, thread_index, 0);
+ nat44_ed_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
next[0] = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace0;
}
- if (s0->tcp_closed_timestamp)
- {
- if (now >= s0->tcp_closed_timestamp)
- {
- // session is closed, go slow path, freed in slow path
- next[0] = def_slow;
- }
- else
- {
- // session in transitory timeout, drop
- b0->error = node->errors[NAT_IN2OUT_ED_ERROR_TCP_CLOSED];
- next[0] = NAT_NEXT_DROP;
- }
- goto trace0;
- }
-
// drop if session expired
u64 sess_timeout_time;
sess_timeout_time =
s0->last_heard + (f64) nat44_session_get_timeout (sm, s0);
if (now >= sess_timeout_time)
{
- nat_free_session_data (sm, s0, thread_index, 0);
+ nat44_ed_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
// session is closed, go slow path
next[0] = def_slow;
else
{
translation_error = NAT_ED_TRNSL_ERR_FLOW_MISMATCH;
- nat_free_session_data (sm, s0, thread_index, 0);
+ nat44_ed_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
next[0] = NAT_NEXT_DROP;
b0->error = node->errors[NAT_IN2OUT_ED_ERROR_TRNSL_FAILED];
(translation_error = nat_6t_flow_buf_translate_i2o (
vm, sm, b0, ip0, f, proto0, is_output_feature)))
{
- nat_free_session_data (sm, s0, thread_index, 0);
+ nat44_ed_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
next[0] = NAT_NEXT_DROP;
b0->error = node->errors[NAT_IN2OUT_ED_ERROR_TRNSL_FAILED];
switch (proto0)
{
- case NAT_PROTOCOL_TCP:
+ case IP_PROTOCOL_TCP:
vlib_increment_simple_counter (&sm->counters.fastpath.in2out.tcp,
- thread_index, sw_if_index0, 1);
- nat44_set_tcp_session_state_i2o (sm, now, s0, b0, thread_index);
+ thread_index, cntr_sw_if_index0, 1);
+ nat44_set_tcp_session_state_i2o (
+ sm, now, s0, vnet_buffer (b0)->ip.reass.icmp_type_or_tcp_flags,
+ thread_index);
break;
- case NAT_PROTOCOL_UDP:
+ case IP_PROTOCOL_UDP:
vlib_increment_simple_counter (&sm->counters.fastpath.in2out.udp,
- thread_index, sw_if_index0, 1);
+ thread_index, cntr_sw_if_index0, 1);
break;
- case NAT_PROTOCOL_ICMP:
+ case IP_PROTOCOL_ICMP:
vlib_increment_simple_counter (&sm->counters.fastpath.in2out.icmp,
- thread_index, sw_if_index0, 1);
+ thread_index, cntr_sw_if_index0, 1);
break;
- case NAT_PROTOCOL_OTHER:
+ default:
vlib_increment_simple_counter (&sm->counters.fastpath.in2out.other,
- thread_index, sw_if_index0, 1);
+ thread_index, cntr_sw_if_index0, 1);
break;
}
{
nat_in2out_ed_trace_t *t =
vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
+ t->sw_if_index = rx_sw_if_index0;
t->next_index = next[0];
t->is_slow_path = 0;
t->translation_error = translation_error;
clib_memcpy (&t->i2of, &s0->i2o, sizeof (t->i2of));
clib_memcpy (&t->o2if, &s0->o2i, sizeof (t->o2if));
t->translation_via_i2of = (&s0->i2o == f);
+ t->tcp_state = s0->tcp_state;
}
else
{
if (next[0] == NAT_NEXT_DROP)
{
vlib_increment_simple_counter (&sm->counters.fastpath.in2out.drops,
- thread_index, sw_if_index0, 1);
+ thread_index, cntr_sw_if_index0, 1);
}
n_left_from--;
while (n_left_from > 0)
{
vlib_buffer_t *b0;
- u32 sw_if_index0, rx_fib_index0, iph_offset0 = 0;
- nat_protocol_t proto0;
+ u32 rx_sw_if_index0, rx_fib_index0, iph_offset0 = 0;
+ u32 tx_sw_if_index0;
+ u32 cntr_sw_if_index0;
+ ip_protocol_t proto0;
ip4_header_t *ip0;
udp_header_t *udp0;
icmp46_header_t *icmp0;
ip0 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b0) +
iph_offset0);
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
- rx_fib_index0 =
- fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, sw_if_index0);
+ rx_sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ tx_sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+ cntr_sw_if_index0 =
+ is_output_feature ? tx_sw_if_index0 : rx_sw_if_index0;
+ rx_fib_index0 = fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
+ rx_sw_if_index0);
if (PREDICT_FALSE (!is_output_feature && ip0->ttl == 1))
{
udp0 = ip4_next_header (ip0);
icmp0 = (icmp46_header_t *) udp0;
- proto0 = ip_proto_to_nat_proto (ip0->protocol);
+ proto0 = ip0->protocol;
- if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_OTHER))
+ if (PREDICT_FALSE (nat44_ed_is_unk_proto (proto0)))
{
s0 = nat44_ed_in2out_slowpath_unknown_proto (
sm, b0, ip0, rx_fib_index0, thread_index, now, vm, node);
(translation_error = nat_6t_flow_buf_translate_i2o (
vm, sm, b0, ip0, &s0->i2o, proto0, is_output_feature)))
{
- nat_free_session_data (sm, s0, thread_index, 0);
+ nat44_ed_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
next[0] = NAT_NEXT_DROP;
b0->error = node->errors[NAT_IN2OUT_ED_ERROR_TRNSL_FAILED];
}
vlib_increment_simple_counter (&sm->counters.slowpath.in2out.other,
- thread_index, sw_if_index0, 1);
+ thread_index, cntr_sw_if_index0, 1);
goto trace0;
}
- if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_ICMP))
+ if (PREDICT_FALSE (proto0 == IP_PROTOCOL_ICMP))
{
next[0] = icmp_in2out_ed_slow_path (
- sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node, next[0],
- now, thread_index, proto0, &s0, is_multi_worker);
+ sm, b0, ip0, icmp0, rx_sw_if_index0, tx_sw_if_index0,
+ rx_fib_index0, node, next[0], now, thread_index, &s0,
+ is_multi_worker);
if (NAT_NEXT_DROP != next[0] && s0 &&
NAT_ED_TRNSL_ERR_SUCCESS !=
(translation_error = nat_6t_flow_buf_translate_i2o (
vm, sm, b0, ip0, &s0->i2o, proto0, is_output_feature)))
{
- nat_free_session_data (sm, s0, thread_index, 0);
+ nat44_ed_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
next[0] = NAT_NEXT_DROP;
b0->error = node->errors[NAT_IN2OUT_ED_ERROR_TRNSL_FAILED];
}
vlib_increment_simple_counter (&sm->counters.slowpath.in2out.icmp,
- thread_index, sw_if_index0, 1);
+ thread_index, cntr_sw_if_index0, 1);
goto trace0;
}
- init_ed_k (&kv0, ip0->src_address,
- vnet_buffer (b0)->ip.reass.l4_src_port, ip0->dst_address,
- vnet_buffer (b0)->ip.reass.l4_dst_port, rx_fib_index0,
- ip0->protocol);
+ init_ed_k (
+ &kv0, ip0->src_address.as_u32, vnet_buffer (b0)->ip.reass.l4_src_port,
+ ip0->dst_address.as_u32, vnet_buffer (b0)->ip.reass.l4_dst_port,
+ rx_fib_index0, ip0->protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv0, &value0))
{
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_closed_timestamp && now >= s0->tcp_closed_timestamp)
- {
- nat_free_session_data (sm, s0, thread_index, 0);
- nat_ed_session_delete (sm, s0, thread_index, 1);
- s0 = NULL;
- }
}
if (!s0)
if (PREDICT_FALSE (nat44_ed_not_translate_output_feature (
sm, b0, ip0, vnet_buffer (b0)->ip.reass.l4_src_port,
vnet_buffer (b0)->ip.reass.l4_dst_port, thread_index,
- sw_if_index0, vnet_buffer (b0)->sw_if_index[VLIB_TX], now,
- is_multi_worker)))
+ rx_sw_if_index0, tx_sw_if_index0, is_multi_worker)))
goto trace0;
/*
* 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 == NAT_PROTOCOL_UDP
- && (vnet_buffer (b0)->ip.reass.l4_dst_port ==
- clib_host_to_net_u16 (UDP_DST_PORT_dhcp_to_server))
- && ip0->dst_address.as_u32 == 0xffffffff))
+ if (PREDICT_FALSE (
+ proto0 == IP_PROTOCOL_UDP &&
+ (vnet_buffer (b0)->ip.reass.l4_dst_port ==
+ clib_host_to_net_u16 (UDP_DST_PORT_dhcp_to_server)) &&
+ ip0->dst_address.as_u32 == 0xffffffff))
goto trace0;
}
else
{
- if (PREDICT_FALSE (nat44_ed_not_translate (
- vm, sm, node, sw_if_index0, b0, ip0, proto0, rx_fib_index0,
- thread_index)))
+ if (PREDICT_FALSE (
+ nat44_ed_not_translate (vm, sm, node, rx_sw_if_index0, b0,
+ ip0, proto0, rx_fib_index0)))
goto trace0;
}
- next[0] = slow_path_ed (
- vm, sm, b0, ip0->src_address, ip0->dst_address,
- vnet_buffer (b0)->ip.reass.l4_src_port,
- vnet_buffer (b0)->ip.reass.l4_dst_port, ip0->protocol,
- rx_fib_index0, &s0, node, next[0], thread_index, now);
+ next[0] =
+ slow_path_ed (vm, sm, b0, ip0->src_address, ip0->dst_address,
+ vnet_buffer (b0)->ip.reass.l4_src_port,
+ vnet_buffer (b0)->ip.reass.l4_dst_port,
+ ip0->protocol, rx_fib_index0, tx_sw_if_index0, &s0,
+ node, next[0], thread_index, now);
if (PREDICT_FALSE (next[0] == NAT_NEXT_DROP))
goto trace0;
(translation_error = nat_6t_flow_buf_translate_i2o (
vm, sm, b0, ip0, &s0->i2o, proto0, is_output_feature)))
{
- nat_free_session_data (sm, s0, thread_index, 0);
+ nat44_ed_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
next[0] = NAT_NEXT_DROP;
b0->error = node->errors[NAT_IN2OUT_ED_ERROR_TRNSL_FAILED];
goto trace0;
}
- if (PREDICT_TRUE (proto0 == NAT_PROTOCOL_TCP))
+ if (PREDICT_TRUE (proto0 == IP_PROTOCOL_TCP))
{
vlib_increment_simple_counter (&sm->counters.slowpath.in2out.tcp,
- thread_index, sw_if_index0, 1);
- nat44_set_tcp_session_state_i2o (sm, now, s0, b0, thread_index);
+ thread_index, cntr_sw_if_index0, 1);
+ nat44_set_tcp_session_state_i2o (
+ sm, now, s0, vnet_buffer (b0)->ip.reass.icmp_type_or_tcp_flags,
+ thread_index);
}
else
{
vlib_increment_simple_counter (&sm->counters.slowpath.in2out.udp,
- thread_index, sw_if_index0, 1);
+ thread_index, cntr_sw_if_index0, 1);
}
/* Accounting */
{
nat_in2out_ed_trace_t *t =
vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
+ t->sw_if_index = rx_sw_if_index0;
t->next_index = next[0];
t->is_slow_path = 1;
t->translation_error = translation_error;
clib_memcpy (&t->i2of, &s0->i2o, sizeof (t->i2of));
clib_memcpy (&t->o2if, &s0->o2i, sizeof (t->o2if));
t->translation_via_i2of = 1;
+ t->tcp_state = s0->tcp_state;
}
else
if (next[0] == NAT_NEXT_DROP)
{
vlib_increment_simple_counter (&sm->counters.slowpath.in2out.drops,
- thread_index, sw_if_index0, 1);
+ thread_index, cntr_sw_if_index0, 1);
}
n_left_from--;
Code Review / vpp.git / blobdiff