summaryrefslogtreecommitdiffstats
path: root/src/plugins/nat/nat44-ed/nat44_ed.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/plugins/nat/nat44-ed/nat44_ed.c')
-rw-r--r--src/plugins/nat/nat44-ed/nat44_ed.c824
1 files changed, 368 insertions, 456 deletions
diff --git a/src/plugins/nat/nat44-ed/nat44_ed.c b/src/plugins/nat/nat44-ed/nat44_ed.c
index a11043682b9..d639392019b 100644
--- a/src/plugins/nat/nat44-ed/nat44_ed.c
+++ b/src/plugins/nat/nat44-ed/nat44_ed.c
@@ -28,9 +28,11 @@
#include <vppinfra/bihash_16_8.h>
#include <nat/lib/log.h>
-#include <nat/lib/nat_syslog.h>
#include <nat/lib/nat_inlines.h>
#include <nat/lib/ipfix_logging.h>
+#include <vnet/syslog/syslog.h>
+#include <nat/lib/nat_syslog_constants.h>
+#include <nat/lib/nat_syslog.h>
#include <nat/nat44-ed/nat44_ed.h>
#include <nat/nat44-ed/nat44_ed_affinity.h>
@@ -183,29 +185,6 @@ static void nat44_ed_db_free ();
u32 nat_calc_bihash_buckets (u32 n_elts);
u8 *
-format_session_kvp (u8 * s, va_list * args)
-{
- clib_bihash_kv_8_8_t *v = va_arg (*args, clib_bihash_kv_8_8_t *);
-
- s = format (s, "%U thread-index %llu session-index %llu", format_snat_key,
- v->key, nat_value_get_thread_index (v),
- nat_value_get_session_index (v));
-
- return s;
-}
-
-u8 *
-format_static_mapping_kvp (u8 * s, va_list * args)
-{
- clib_bihash_kv_8_8_t *v = va_arg (*args, clib_bihash_kv_8_8_t *);
-
- s = format (s, "%U static-mapping-index %llu",
- format_snat_key, v->key, v->value);
-
- return s;
-}
-
-u8 *
format_ed_session_kvp (u8 * s, va_list * args)
{
clib_bihash_kv_16_8_t *v = va_arg (*args, clib_bihash_kv_16_8_t *);
@@ -227,59 +206,81 @@ format_ed_session_kvp (u8 * s, va_list * args)
return s;
}
-void
-nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index,
- u8 is_ha)
+static_always_inline int
+nat44_ed_sm_i2o_add (snat_main_t *sm, snat_static_mapping_t *m,
+ ip4_address_t addr, u16 port, u32 fib_index, u8 proto)
{
- per_vrf_sessions_unregister_session (s, thread_index);
+ ASSERT (!pool_is_free (sm->static_mappings, m));
+ clib_bihash_kv_16_8_t kv;
+ nat44_ed_sm_init_i2o_kv (&kv, addr.as_u32, port, fib_index, proto,
+ m - sm->static_mappings);
+ return clib_bihash_add_del_16_8 (&sm->flow_hash, &kv, 1 /*is_add*/);
+}
- if (nat_ed_ses_i2o_flow_hash_add_del (sm, thread_index, s, 0))
- nat_elog_warn (sm, "flow hash del failed");
+static_always_inline int
+nat44_ed_sm_i2o_del (snat_main_t *sm, ip4_address_t addr, u16 port,
+ u32 fib_index, u8 proto)
+{
+ clib_bihash_kv_16_8_t kv;
+ nat44_ed_sm_init_i2o_k (&kv, addr.as_u32, port, fib_index, proto);
+ return clib_bihash_add_del_16_8 (&sm->flow_hash, &kv, 0 /*is_add*/);
+}
- if (nat_ed_ses_o2i_flow_hash_add_del (sm, thread_index, s, 0))
- nat_elog_warn (sm, "flow hash del failed");
+static_always_inline int
+nat44_ed_sm_o2i_add (snat_main_t *sm, snat_static_mapping_t *m,
+ ip4_address_t addr, u16 port, u32 fib_index, u8 proto)
+{
+ ASSERT (!pool_is_free (sm->static_mappings, m));
+ clib_bihash_kv_16_8_t kv;
+ nat44_ed_sm_init_o2i_kv (&kv, addr.as_u32, port, fib_index, proto,
+ m - sm->static_mappings);
+ return clib_bihash_add_del_16_8 (&sm->flow_hash, &kv, 1 /*is_add*/);
+}
- if (na44_ed_is_fwd_bypass_session (s))
- {
- return;
- }
+static_always_inline int
+nat44_ed_sm_o2i_del (snat_main_t *sm, ip4_address_t addr, u16 port,
+ u32 fib_index, u8 proto)
+{
+ clib_bihash_kv_16_8_t kv;
+ nat44_ed_sm_init_o2i_k (&kv, addr.as_u32, port, fib_index, proto);
+ return clib_bihash_add_del_16_8 (&sm->flow_hash, &kv, 0 /*is_add*/);
+}
- if (nat44_ed_is_affinity_session (s))
- nat_affinity_unlock (s->ext_host_addr, s->out2in.addr, s->nat_proto,
- s->out2in.port);
+void
+nat44_ed_free_session_data (snat_main_t *sm, snat_session_t *s,
+ u32 thread_index, u8 is_ha)
+{
+ per_vrf_sessions_unregister_session (s, thread_index);
- if (!is_ha)
- nat_syslog_nat44_sdel (
- 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,
- nat44_ed_is_twice_nat_session (s));
+ if (nat_ed_ses_i2o_flow_hash_add_del (sm, thread_index, s, 0))
+ nat_elog_warn (sm, "flow hash del failed");
- if (snat_is_unk_proto_session (s))
- return;
+ if (nat_ed_ses_o2i_flow_hash_add_del (sm, thread_index, s, 0))
+ nat_elog_warn (sm, "flow hash del failed");
- if (!is_ha)
- {
- /* log NAT event */
- nat_ipfix_logging_nat44_ses_delete (
- 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);
- }
+ if (na44_ed_is_fwd_bypass_session (s))
+ {
+ return;
+ }
- /* Twice NAT address and port for external host */
- if (nat44_ed_is_twice_nat_session (s))
- {
- snat_free_outside_address_and_port (
- sm->twice_nat_addresses, thread_index, &s->ext_host_nat_addr,
- s->ext_host_nat_port, s->nat_proto);
- }
+ if (nat44_ed_is_affinity_session (s))
+ nat_affinity_unlock (s->ext_host_addr, s->out2in.addr, s->proto,
+ s->out2in.port);
- if (nat44_ed_is_session_static (s))
- return;
+ if (!is_ha)
+ nat_syslog_nat44_sdel (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->proto, nat44_ed_is_twice_nat_session (s));
- snat_free_outside_address_and_port (sm->addresses, thread_index,
- &s->out2in.addr, s->out2in.port,
- s->nat_proto);
+ if (!is_ha)
+ {
+ /* log NAT event */
+ nat_ipfix_logging_nat44_ses_delete (
+ thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32, s->proto,
+ s->in2out.port, s->out2in.port, s->in2out.fib_index);
+ }
}
static int
@@ -388,7 +389,6 @@ int
nat44_ed_add_address (ip4_address_t *addr, u32 vrf_id, u8 twice_nat)
{
snat_main_t *sm = &snat_main;
- vlib_thread_main_t *tm = vlib_get_thread_main ();
snat_address_t *ap, *addresses;
addresses = twice_nat ? sm->twice_nat_addresses : sm->addresses;
@@ -426,16 +426,6 @@ nat44_ed_add_address (ip4_address_t *addr, u32 vrf_id, u8 twice_nat)
FIB_PROTOCOL_IP4, vrf_id, sm->fib_src_low);
}
-#define _(N, i, n, s) \
- clib_memset (ap->busy_##n##_port_refcounts, 0, \
- sizeof (ap->busy_##n##_port_refcounts)); \
- ap->busy_##n##_ports = 0; \
- ap->busy_##n##_ports_per_thread = 0; \
- vec_validate_init_empty (ap->busy_##n##_ports_per_thread, \
- tm->n_vlib_mains - 1, 0);
- foreach_nat_protocol
-#undef _
-
if (!twice_nat)
{
// if we don't have enabled interface we don't add address
@@ -480,7 +470,8 @@ nat44_ed_del_address (ip4_address_t addr, u8 delete_sm, u8 twice_nat)
{
nat44_ed_del_static_mapping (m->local_addr, m->external_addr,
m->local_port, m->external_port,
- m->proto, m->vrf_id, ~0, m->flags);
+ ip_proto_to_nat_proto (m->proto),
+ m->vrf_id, ~0, m->flags);
}
}
}
@@ -501,32 +492,25 @@ nat44_ed_del_address (ip4_address_t addr, u8 delete_sm, u8 twice_nat)
}
// delete sessions using address
- if (a->busy_tcp_ports || a->busy_udp_ports || a->busy_icmp_ports)
+ vec_foreach (tsm, sm->per_thread_data)
{
- vec_foreach (tsm, sm->per_thread_data)
+ pool_foreach (ses, tsm->sessions)
{
- pool_foreach (ses, tsm->sessions)
- {
- if (ses->out2in.addr.as_u32 == addr.as_u32)
- {
- nat_free_session_data (sm, ses, tsm - sm->per_thread_data,
- 0);
- vec_add1 (ses_to_be_removed, ses - tsm->sessions);
- }
- }
- vec_foreach (ses_index, ses_to_be_removed)
+ if (ses->out2in.addr.as_u32 == addr.as_u32)
{
- ses = pool_elt_at_index (tsm->sessions, ses_index[0]);
- nat_ed_session_delete (sm, ses, tsm - sm->per_thread_data, 1);
+ nat44_ed_free_session_data (sm, ses, tsm - sm->per_thread_data,
+ 0);
+ vec_add1 (ses_to_be_removed, ses - tsm->sessions);
}
- vec_free (ses_to_be_removed);
}
+ vec_foreach (ses_index, ses_to_be_removed)
+ {
+ ses = pool_elt_at_index (tsm->sessions, ses_index[0]);
+ nat_ed_session_delete (sm, ses, tsm - sm->per_thread_data, 1);
+ }
+ vec_free (ses_to_be_removed);
}
-#define _(N, i, n, s) vec_free (a->busy_##n##_ports_per_thread);
- foreach_nat_protocol
-#undef _
-
if (!twice_nat)
{
vec_del1 (sm->addresses, j);
@@ -569,18 +553,17 @@ nat_ed_static_mapping_del_sessions (snat_main_t * sm,
}
if (!addr_only)
{
- if ((s->out2in.addr.as_u32 != e_addr.as_u32) ||
- s->out2in.port != e_port ||
- s->in2out.port != l_port ||
- s->nat_proto != protocol)
- continue;
+ if ((s->out2in.addr.as_u32 != e_addr.as_u32) ||
+ s->out2in.port != e_port || s->in2out.port != l_port ||
+ s->proto != protocol)
+ continue;
}
if (nat44_ed_is_lb_session (s))
continue;
if (!nat44_ed_is_session_static (s))
continue;
- nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
+ nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
vec_add1 (indexes_to_free, s - tsm->sessions);
if (!addr_only)
break;
@@ -594,89 +577,41 @@ nat_ed_static_mapping_del_sessions (snat_main_t * sm,
vec_free (indexes_to_free);
}
-int
-nat44_ed_reserve_port (ip4_address_t addr, u16 port, nat_protocol_t proto)
+static_always_inline snat_static_mapping_t *
+nat44_ed_sm_lookup (snat_main_t *sm, clib_bihash_kv_16_8_t *kv)
{
- u32 ti = get_thread_idx_by_port (port);
- snat_main_t *sm = &snat_main;
- snat_address_t *a = 0;
- int i;
-
- for (i = 0; i < vec_len (sm->addresses); i++)
+ clib_bihash_kv_16_8_t v;
+ int rc = clib_bihash_search_16_8 (&sm->flow_hash, kv, &v);
+ if (!rc)
{
- a = sm->addresses + i;
-
- if (a->addr.as_u32 != addr.as_u32)
- continue;
-
- switch (proto)
- {
-#define _(N, j, n, s) \
- case NAT_PROTOCOL_##N: \
- if (a->busy_##n##_port_refcounts[port]) \
- goto done; \
- ++a->busy_##n##_port_refcounts[port]; \
- if (port > 1024) \
- { \
- a->busy_##n##_ports++; \
- a->busy_##n##_ports_per_thread[ti]++; \
- } \
- break;
- foreach_nat_protocol
-#undef _
- default : nat_elog_info (sm, "unknown protocol");
- goto done;
- }
-
- return 0;
+ ASSERT (0 == ed_value_get_thread_index (&v));
+ return pool_elt_at_index (sm->static_mappings,
+ ed_value_get_session_index (&v));
}
-
-done:
- return 1;
+ return NULL;
}
-int
-nat44_ed_free_port (ip4_address_t addr, u16 port, nat_protocol_t proto)
+snat_static_mapping_t *
+nat44_ed_sm_o2i_lookup (snat_main_t *sm, ip4_address_t addr, u16 port,
+ u32 fib_index, u8 proto)
{
- u32 ti = get_thread_idx_by_port (port);
- snat_main_t *sm = &snat_main;
- snat_address_t *a = 0;
- int i;
-
- for (i = 0; i < vec_len (sm->addresses); i++)
- {
- a = sm->addresses + i;
-
- if (a->addr.as_u32 != addr.as_u32)
- continue;
-
- switch (proto)
- {
-#define _(N, j, n, s) \
- case NAT_PROTOCOL_##N: \
- --a->busy_##n##_port_refcounts[port]; \
- if (port > 1024) \
- { \
- a->busy_##n##_ports--; \
- a->busy_##n##_ports_per_thread[ti]--; \
- } \
- break;
- foreach_nat_protocol
-#undef _
- default : nat_elog_info (sm, "unknown protocol");
- goto done;
- }
-
- return 0;
- }
+ clib_bihash_kv_16_8_t kv;
+ nat44_ed_sm_init_o2i_k (&kv, addr.as_u32, port, fib_index, proto);
+ return nat44_ed_sm_lookup (sm, &kv);
+}
-done:
- return 1;
+snat_static_mapping_t *
+nat44_ed_sm_i2o_lookup (snat_main_t *sm, ip4_address_t addr, u16 port,
+ u32 fib_index, u8 proto)
+{
+ clib_bihash_kv_16_8_t kv;
+ nat44_ed_sm_init_i2o_k (&kv, addr.as_u32, port, fib_index, proto);
+ return nat44_ed_sm_lookup (sm, &kv);
}
void
nat44_ed_add_resolve_record (ip4_address_t l_addr, u16 l_port, u16 e_port,
- nat_protocol_t proto, u32 vrf_id, u32 sw_if_index,
+ ip_protocol_t proto, u32 vrf_id, u32 sw_if_index,
u32 flags, ip4_address_t pool_addr, u8 *tag)
{
snat_static_map_resolve_t *rp;
@@ -696,7 +631,7 @@ nat44_ed_add_resolve_record (ip4_address_t l_addr, u16 l_port, u16 e_port,
int
nat44_ed_get_resolve_record (ip4_address_t l_addr, u16 l_port, u16 e_port,
- nat_protocol_t proto, u32 vrf_id, u32 sw_if_index,
+ ip_protocol_t proto, u32 vrf_id, u32 sw_if_index,
u32 flags, int *out)
{
snat_static_map_resolve_t *rp;
@@ -746,7 +681,7 @@ nat44_ed_get_resolve_record (ip4_address_t l_addr, u16 l_port, u16 e_port,
int
nat44_ed_del_resolve_record (ip4_address_t l_addr, u16 l_port, u16 e_port,
- nat_protocol_t proto, u32 vrf_id, u32 sw_if_index,
+ ip_protocol_t proto, u32 vrf_id, u32 sw_if_index,
u32 flags)
{
snat_main_t *sm = &snat_main;
@@ -779,14 +714,24 @@ nat44_ed_validate_sm_input (u32 flags)
return 0;
}
+snat_address_t *
+nat44_ed_addr_lookup (snat_main_t *sm, u32 addr)
+{
+ for (int i = 0; i < vec_len (sm->addresses); ++i)
+ {
+ if (sm->addresses[i].addr.as_u32 == addr)
+ return &sm->addresses[i];
+ }
+ return NULL;
+}
+
int
nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
- u16 l_port, u16 e_port, nat_protocol_t proto,
+ u16 l_port, u16 e_port, ip_protocol_t proto,
u32 vrf_id, u32 sw_if_index, u32 flags,
ip4_address_t pool_addr, u8 *tag)
{
snat_main_t *sm = &snat_main;
- clib_bihash_kv_8_8_t kv, value;
nat44_lb_addr_port_t *local;
snat_static_mapping_t *m;
u32 fib_index = ~0;
@@ -840,12 +785,9 @@ nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
l_addr.as_u32 = e_addr.as_u32;
}
- // fib index 0
- init_nat_k (&kv, e_addr, e_port, 0, proto);
-
- if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
+ m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto);
+ if (m)
{
- m = pool_elt_at_index (sm->static_mappings, value.value);
if (!is_sm_identity_nat (m->flags))
{
return VNET_API_ERROR_VALUE_EXIST;
@@ -867,9 +809,8 @@ nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
local->fib_index = fib_table_find_or_create_and_lock (
FIB_PROTOCOL_IP4, vrf_id, sm->fib_src_low);
- init_nat_kv (&kv, m->local_addr, m->local_port, local->fib_index,
- m->proto, 0, m - sm->static_mappings);
- clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1);
+ nat44_ed_sm_i2o_add (sm, m, m->local_addr, m->local_port,
+ local->fib_index, m->proto);
return 0;
}
@@ -891,8 +832,7 @@ nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
// identity nat supports multiple records in local mapping
if (!(is_sm_out2in_only (flags) || is_sm_identity_nat (flags)))
{
- init_nat_k (&kv, l_addr, l_port, fib_index, proto);
- if (!clib_bihash_search_8_8 (&sm->static_mapping_by_local, &kv, &value))
+ if (nat44_ed_sm_i2o_lookup (sm, l_addr, l_port, fib_index, proto))
{
return VNET_API_ERROR_VALUE_EXIST;
}
@@ -901,7 +841,7 @@ nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
if (!(is_sm_out2in_only (flags) || is_sm_addr_only (flags) ||
sm->static_mapping_only))
{
- if (nat44_ed_reserve_port (e_addr, e_port, proto))
+ if (!nat44_ed_addr_lookup (sm, e_addr.as_u32))
{
// remove resolve record
if (is_sm_switch_address (flags) && !is_sm_identity_nat (flags))
@@ -955,14 +895,11 @@ nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
if (!is_sm_out2in_only (flags))
{
- init_nat_kv (&kv, m->local_addr, m->local_port, fib_index, m->proto, 0,
- m - sm->static_mappings);
- clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1);
+ nat44_ed_sm_i2o_add (sm, m, m->local_addr, m->local_port, fib_index,
+ m->proto);
}
- init_nat_kv (&kv, m->external_addr, m->external_port, 0, m->proto, 0,
- m - sm->static_mappings);
- clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 1);
+ nat44_ed_sm_o2i_add (sm, m, m->external_addr, m->external_port, 0, m->proto);
if (sm->num_workers > 1)
{
@@ -981,13 +918,12 @@ nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
int
nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
- u16 l_port, u16 e_port, nat_protocol_t proto,
+ u16 l_port, u16 e_port, ip_protocol_t proto,
u32 vrf_id, u32 sw_if_index, u32 flags)
{
snat_main_per_thread_data_t *tsm;
snat_main_t *sm = &snat_main;
- clib_bihash_kv_8_8_t kv, value;
nat44_lb_addr_port_t *local;
snat_static_mapping_t *m;
u32 fib_index = ~0;
@@ -1039,9 +975,9 @@ nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
}
// fib index 0
- init_nat_k (&kv, e_addr, e_port, 0, proto);
+ m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto);
- if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
+ if (!m)
{
if (is_sm_switch_address (flags))
{
@@ -1050,8 +986,6 @@ nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
return VNET_API_ERROR_NO_SUCH_ENTRY;
}
- m = pool_elt_at_index (sm->static_mappings, value.value);
-
if (is_sm_identity_nat (flags))
{
u8 failure = 1;
@@ -1085,7 +1019,7 @@ nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
if (!(is_sm_out2in_only (flags) || is_sm_addr_only (flags) ||
sm->static_mapping_only))
{
- if (nat44_ed_free_port (e_addr, e_port, proto))
+ if (!nat44_ed_addr_lookup (sm, e_addr.as_u32))
{
return VNET_API_ERROR_INVALID_VALUE;
}
@@ -1093,8 +1027,7 @@ nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
if (!is_sm_out2in_only (flags))
{
- init_nat_k (&kv, l_addr, l_port, fib_index, proto);
- clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 0);
+ nat44_ed_sm_i2o_del (sm, l_addr, l_port, fib_index, proto);
}
if (!sm->static_mapping_only || sm->static_mapping_connection_tracking)
@@ -1116,8 +1049,7 @@ nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
{
// this is last record remove all required stuff
// fib_index 0
- init_nat_k (&kv, e_addr, e_port, 0, proto);
- clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 0);
+ nat44_ed_sm_o2i_del (sm, e_addr, e_port, 0, proto);
vec_free (m->tag);
vec_free (m->workers);
@@ -1134,17 +1066,17 @@ nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
int
nat44_ed_add_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
- nat_protocol_t proto,
+ ip_protocol_t proto,
nat44_lb_addr_port_t *locals, u32 flags,
u8 *tag, u32 affinity)
{
snat_main_t *sm = &snat_main;
snat_static_mapping_t *m;
- clib_bihash_kv_8_8_t kv, value;
snat_address_t *a = 0;
nat44_lb_addr_port_t *local;
uword *bitmap = 0;
+ int rc = 0;
int i;
@@ -1153,15 +1085,7 @@ nat44_ed_add_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
return VNET_API_ERROR_UNSUPPORTED;
}
- init_nat_k (&kv, e_addr, e_port, 0, proto);
- if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
- {
- m = 0;
- }
- else
- {
- m = pool_elt_at_index (sm->static_mappings, value.value);
- }
+ m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto);
if (m)
{
@@ -1181,25 +1105,11 @@ nat44_ed_add_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
{
if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
{
- a = sm->addresses + i;
/* External port must be unused */
- switch (proto)
+ a = sm->addresses + i;
+ if (nat44_ed_sm_o2i_lookup (sm, a->addr, e_port, 0, proto))
{
-#define _(N, j, n, s) \
- case NAT_PROTOCOL_##N: \
- if (a->busy_##n##_port_refcounts[e_port]) \
- return VNET_API_ERROR_INVALID_VALUE; \
- ++a->busy_##n##_port_refcounts[e_port]; \
- if (e_port > 1024) \
- { \
- a->busy_##n##_ports++; \
- a->busy_##n##_ports_per_thread[get_thread_idx_by_port (e_port)]++; \
- } \
- break;
- foreach_nat_protocol
-#undef _
- default : nat_elog_info (sm, "unknown protocol");
- return VNET_API_ERROR_INVALID_VALUE_2;
+ return VNET_API_ERROR_VALUE_EXIST;
}
break;
}
@@ -1228,11 +1138,10 @@ nat44_ed_add_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
else
m->affinity_per_service_list_head_index = ~0;
- init_nat_kv (&kv, m->external_addr, m->external_port, 0, m->proto, 0,
- m - sm->static_mappings);
- if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 1))
+ if (nat44_ed_sm_o2i_add (sm, m, m->external_addr, m->external_port, 0,
+ m->proto))
{
- nat_elog_err (sm, "static_mapping_by_external key add failed");
+ nat_elog_err (sm, "sm o2i key add failed");
return VNET_API_ERROR_UNSPECIFIED;
}
@@ -1242,10 +1151,16 @@ nat44_ed_add_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
FIB_PROTOCOL_IP4, locals[i].vrf_id, sm->fib_src_low);
if (!is_sm_out2in_only (flags))
{
- init_nat_kv (&kv, locals[i].addr, locals[i].port,
- locals[i].fib_index, m->proto, 0,
- m - sm->static_mappings);
- clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1);
+ if (nat44_ed_sm_o2i_add (sm, m, e_addr, e_port, 0, proto))
+ {
+ nat_elog_err (sm, "sm o2i key add failed");
+ rc = VNET_API_ERROR_UNSPECIFIED;
+ // here we continue with add operation so that it can be safely
+ // reversed in delete path - otherwise we'd have to track what
+ // we've done and deal with partial cleanups and since bihash
+ // adds are (extremely improbable) the only points of failure,
+ // it's easier to just do it this way
+ }
}
locals[i].prefix = (i == 0) ?
locals[i].probability :
@@ -1272,72 +1187,36 @@ nat44_ed_add_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
}
}
- return 0;
+ return rc;
}
int
nat44_ed_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
- nat_protocol_t proto, u32 flags)
+ ip_protocol_t proto, u32 flags)
{
snat_main_t *sm = &snat_main;
snat_static_mapping_t *m;
- clib_bihash_kv_8_8_t kv, value;
- snat_address_t *a = 0;
nat44_lb_addr_port_t *local;
snat_main_per_thread_data_t *tsm;
snat_session_t *s;
- int i;
if (!sm->enabled)
{
return VNET_API_ERROR_UNSUPPORTED;
}
- init_nat_k (&kv, e_addr, e_port, 0, proto);
- if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
- m = 0;
- else
- m = pool_elt_at_index (sm->static_mappings, value.value);
-
+ m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto);
if (!m)
return VNET_API_ERROR_NO_SUCH_ENTRY;
if (!is_sm_lb (m->flags))
return VNET_API_ERROR_INVALID_VALUE;
- if (!(sm->static_mapping_only || is_sm_out2in_only (flags)))
+ if (nat44_ed_sm_o2i_del (sm, m->external_addr, m->external_port, 0,
+ m->proto))
{
- for (i = 0; i < vec_len (sm->addresses); i++)
- {
- if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
- {
- a = sm->addresses + i;
- switch (proto)
- {
-#define _(N, j, n, s) \
- case NAT_PROTOCOL_##N: \
- --a->busy_##n##_port_refcounts[e_port]; \
- if (e_port > 1024) \
- { \
- a->busy_##n##_ports--; \
- a->busy_##n##_ports_per_thread[get_thread_idx_by_port (e_port)]--; \
- } \
- break;
- foreach_nat_protocol
-#undef _
- default : nat_elog_info (sm, "unknown protocol");
- return VNET_API_ERROR_INVALID_VALUE_2;
- }
- break;
- }
- }
- }
-
- init_nat_k (&kv, m->external_addr, m->external_port, 0, m->proto);
- if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 0))
- {
- nat_elog_err (sm, "static_mapping_by_external key del failed");
+ nat_elog_err (sm, "sm o2i key del failed");
return VNET_API_ERROR_UNSPECIFIED;
}
@@ -1346,11 +1225,10 @@ nat44_ed_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
fib_table_unlock (local->fib_index, FIB_PROTOCOL_IP4, sm->fib_src_low);
if (!is_sm_out2in_only (flags))
{
- init_nat_k (&kv, local->addr, local->port, local->fib_index,
- m->proto);
- if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 0))
+ if (nat44_ed_sm_i2o_del (sm, local->addr, local->port,
+ local->fib_index, m->proto))
{
- nat_elog_err (sm, "static_mapping_by_local key del failed");
+ nat_elog_err (sm, "sm i2o key del failed");
return VNET_API_ERROR_UNSPECIFIED;
}
}
@@ -1377,7 +1255,7 @@ nat44_ed_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
s->in2out.port != local->port)
continue;
- nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
+ nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1);
}
}
@@ -1398,12 +1276,11 @@ nat44_ed_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
int
nat44_ed_add_del_lb_static_mapping_local (ip4_address_t e_addr, u16 e_port,
ip4_address_t l_addr, u16 l_port,
- nat_protocol_t proto, u32 vrf_id,
+ ip_protocol_t proto, u32 vrf_id,
u8 probability, u8 is_add)
{
snat_main_t *sm = &snat_main;
snat_static_mapping_t *m = 0;
- clib_bihash_kv_8_8_t kv, value;
nat44_lb_addr_port_t *local, *prev_local, *match_local = 0;
snat_main_per_thread_data_t *tsm;
snat_session_t *s;
@@ -1416,9 +1293,7 @@ nat44_ed_add_del_lb_static_mapping_local (ip4_address_t e_addr, u16 e_port,
return VNET_API_ERROR_UNSUPPORTED;
}
- init_nat_k (&kv, e_addr, e_port, 0, proto);
- if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
- m = pool_elt_at_index (sm->static_mappings, value.value);
+ m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto);
if (!m)
{
@@ -1459,10 +1334,13 @@ nat44_ed_add_del_lb_static_mapping_local (ip4_address_t e_addr, u16 e_port,
if (!is_sm_out2in_only (m->flags))
{
- init_nat_kv (&kv, l_addr, l_port, local->fib_index, proto, 0,
- m - sm->static_mappings);
- if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1))
- nat_elog_err (sm, "static_mapping_by_local key add failed");
+ if (nat44_ed_sm_i2o_add (sm, m, l_addr, l_port, local->fib_index,
+ proto))
+ {
+ nat_elog_err (sm, "sm i2o key add failed");
+ pool_put (m->locals, local);
+ return VNET_API_ERROR_UNSPECIFIED;
+ }
}
}
else
@@ -1478,9 +1356,9 @@ nat44_ed_add_del_lb_static_mapping_local (ip4_address_t e_addr, u16 e_port,
if (!is_sm_out2in_only (m->flags))
{
- init_nat_k (&kv, l_addr, l_port, match_local->fib_index, proto);
- if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 0))
- nat_elog_err (sm, "static_mapping_by_local key del failed");
+ if (nat44_ed_sm_i2o_del (sm, l_addr, l_port, match_local->fib_index,
+ proto))
+ nat_elog_err (sm, "sm i2o key del failed");
}
if (sm->num_workers > 1)
@@ -1504,7 +1382,7 @@ nat44_ed_add_del_lb_static_mapping_local (ip4_address_t e_addr, u16 e_port,
s->in2out.port != match_local->port)
continue;
- nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
+ nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1);
}
@@ -2163,8 +2041,8 @@ test_key_calc_split ()
u32 thread_index = 3000000001;
u32 session_index = 3000000221;
clib_bihash_kv_16_8_t kv;
- init_ed_kv (&kv, l_addr, l_port, r_addr, r_port, fib_index, proto,
- thread_index, session_index);
+ init_ed_kv (&kv, l_addr.as_u32, l_port, r_addr.as_u32, r_port, fib_index,
+ proto, thread_index, session_index);
ip4_address_t l_addr2;
ip4_address_t r_addr2;
clib_memset (&l_addr2, 0, sizeof (l_addr2));
@@ -2183,16 +2061,6 @@ test_key_calc_split ()
ASSERT (fib_index == fib_index2);
ASSERT (thread_index == ed_value_get_thread_index (&kv));
ASSERT (session_index == ed_value_get_session_index (&kv));
-
- fib_index = 7001;
- proto = 5;
- nat_protocol_t proto3 = ~0;
- u64 key = calc_nat_key (l_addr, l_port, fib_index, proto);
- split_nat_key (key, &l_addr2, &l_port2, &fib_index2, &proto3);
- ASSERT (l_addr.as_u32 == l_addr2.as_u32);
- ASSERT (l_port == l_port2);
- ASSERT (proto == proto3);
- ASSERT (fib_index == fib_index2);
}
static clib_error_t *
@@ -2441,14 +2309,6 @@ nat44_plugin_enable (nat44_config_t c)
void
nat44_addresses_free (snat_address_t ** addresses)
{
- snat_address_t *ap;
- vec_foreach (ap, *addresses)
- {
- #define _(N, i, n, s) \
- vec_free (ap->busy_##n##_ports_per_thread);
- foreach_nat_protocol
- #undef _
- }
vec_free (*addresses);
*addresses = 0;
}
@@ -2548,7 +2408,7 @@ nat44_ed_forwarding_enable_disable (u8 is_enable)
vec_foreach (ses_index, ses_to_be_removed)
{
s = pool_elt_at_index (tsm->sessions, ses_index[0]);
- nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
+ nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1);
}
@@ -2556,88 +2416,88 @@ nat44_ed_forwarding_enable_disable (u8 is_enable)
}
}
-void
-snat_free_outside_address_and_port (snat_address_t *addresses,
- u32 thread_index, ip4_address_t *addr,
- u16 port, nat_protocol_t protocol)
+static_always_inline snat_static_mapping_t *
+nat44_ed_sm_match (snat_main_t *sm, ip4_address_t match_addr, u16 match_port,
+ u32 match_fib_index, ip_protocol_t match_protocol,
+ int by_external)
{
- snat_main_t *sm = &snat_main;
- snat_address_t *a;
- u32 address_index;
- u16 port_host_byte_order = clib_net_to_host_u16 (port);
-
- for (address_index = 0; address_index < vec_len (addresses);
- address_index++)
+ snat_static_mapping_t *m;
+ if (!by_external)
{
- if (addresses[address_index].addr.as_u32 == addr->as_u32)
- break;
- }
+ m = nat44_ed_sm_i2o_lookup (sm, match_addr, match_port, match_fib_index,
+ match_protocol);
+ if (m)
+ return m;
- ASSERT (address_index < vec_len (addresses));
+ /* Try address only mapping */
+ m = nat44_ed_sm_i2o_lookup (sm, match_addr, 0, match_fib_index, 0);
+ if (m)
+ return m;
+
+ if (sm->inside_fib_index != match_fib_index)
+ {
+ m = nat44_ed_sm_i2o_lookup (sm, match_addr, match_port,
+ sm->inside_fib_index, match_protocol);
+ if (m)
+ return m;
- a = addresses + address_index;
+ /* Try address only mapping */
+ m = nat44_ed_sm_i2o_lookup (sm, match_addr, 0, sm->inside_fib_index,
+ 0);
+ if (m)
+ return m;
+ }
+ if (sm->outside_fib_index != match_fib_index)
+ {
+ m = nat44_ed_sm_i2o_lookup (sm, match_addr, match_port,
+ sm->outside_fib_index, match_protocol);
+ if (m)
+ return m;
- switch (protocol)
+ /* Try address only mapping */
+ m = nat44_ed_sm_i2o_lookup (sm, match_addr, 0, sm->outside_fib_index,
+ 0);
+ if (m)
+ return m;
+ }
+ }
+ else
{
-#define _(N, i, n, s) \
- case NAT_PROTOCOL_##N: \
- ASSERT (a->busy_##n##_port_refcounts[port_host_byte_order] >= 1); \
- --a->busy_##n##_port_refcounts[port_host_byte_order]; \
- a->busy_##n##_ports--; \
- a->busy_##n##_ports_per_thread[thread_index]--; \
- break;
- foreach_nat_protocol
-#undef _
- default : nat_elog_info (sm, "unknown protocol");
- return;
+ m =
+ nat44_ed_sm_o2i_lookup (sm, match_addr, match_port, 0, match_protocol);
+ if (m)
+ return m;
+
+ /* Try address only mapping */
+ m = nat44_ed_sm_o2i_lookup (sm, match_addr, 0, 0, 0);
+ if (m)
+ return m;
}
+ return 0;
}
int
snat_static_mapping_match (vlib_main_t *vm, snat_main_t *sm,
ip4_address_t match_addr, u16 match_port,
- u32 match_fib_index, nat_protocol_t match_protocol,
+ u32 match_fib_index, ip_protocol_t match_protocol,
ip4_address_t *mapping_addr, u16 *mapping_port,
- u32 *mapping_fib_index, u8 by_external,
+ u32 *mapping_fib_index, int by_external,
u8 *is_addr_only, twice_nat_type_t *twice_nat,
lb_nat_type_t *lb, ip4_address_t *ext_host_addr,
u8 *is_identity_nat, snat_static_mapping_t **out)
{
- clib_bihash_kv_8_8_t kv, value;
- clib_bihash_8_8_t *mapping_hash;
snat_static_mapping_t *m;
u32 rand, lo = 0, hi, mid, *tmp = 0, i;
nat44_lb_addr_port_t *local;
u8 backend_index;
- if (!by_external)
- {
- mapping_hash = &sm->static_mapping_by_local;
- init_nat_k (&kv, match_addr, match_port, match_fib_index,
- match_protocol);
- if (clib_bihash_search_8_8 (mapping_hash, &kv, &value))
- {
- /* Try address only mapping */
- init_nat_k (&kv, match_addr, 0, match_fib_index, 0);
- if (clib_bihash_search_8_8 (mapping_hash, &kv, &value))
- return 1;
- }
- }
- else
+ m = nat44_ed_sm_match (sm, match_addr, match_port, match_fib_index,
+ match_protocol, by_external);
+ if (!m)
{
- mapping_hash = &sm->static_mapping_by_external;
- init_nat_k (&kv, match_addr, match_port, 0, match_protocol);
- if (clib_bihash_search_8_8 (mapping_hash, &kv, &value))
- {
- /* Try address only mapping */
- init_nat_k (&kv, match_addr, 0, 0, 0);
- if (clib_bihash_search_8_8 (mapping_hash, &kv, &value))
- return 1;
- }
+ return 1;
}
- m = pool_elt_at_index (sm->static_mappings, value.value);
-
if (by_external)
{
if (is_sm_lb (m->flags))
@@ -2814,8 +2674,9 @@ nat44_ed_get_in2out_worker_index (vlib_buffer_t *b, ip4_header_t *ip,
b, ip, &lookup_saddr, &lookup_sport, &lookup_daddr,
&lookup_dport, &lookup_protocol))
{
- init_ed_k (&kv16, lookup_saddr, lookup_sport, lookup_daddr,
- lookup_dport, rx_fib_index, lookup_protocol);
+ init_ed_k (&kv16, lookup_saddr.as_u32, lookup_sport,
+ lookup_daddr.as_u32, lookup_dport, rx_fib_index,
+ lookup_protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16))
{
next_worker_index = ed_value_get_thread_index (&value16);
@@ -2826,9 +2687,10 @@ nat44_ed_get_in2out_worker_index (vlib_buffer_t *b, ip4_header_t *ip,
}
}
- init_ed_k (&kv16, ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port,
- ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port,
- fib_index, ip->protocol);
+ init_ed_k (&kv16, 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, fib_index,
+ ip->protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16))
{
@@ -2839,9 +2701,10 @@ nat44_ed_get_in2out_worker_index (vlib_buffer_t *b, ip4_header_t *ip,
}
// dst NAT
- init_ed_k (&kv16, ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port,
- ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port,
- rx_fib_index, ip->protocol);
+ init_ed_k (&kv16, 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, rx_fib_index,
+ ip->protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16))
{
next_worker_index = ed_value_get_thread_index (&value16);
@@ -2883,17 +2746,16 @@ nat44_ed_get_out2in_worker_index (vlib_buffer_t *b, ip4_header_t *ip,
u32 rx_fib_index, u8 is_output)
{
snat_main_t *sm = &snat_main;
- clib_bihash_kv_8_8_t kv, value;
clib_bihash_kv_16_8_t kv16, value16;
- u32 proto, next_worker_index = 0;
+ u8 proto, next_worker_index = 0;
u16 port;
snat_static_mapping_t *m;
u32 hash;
- proto = ip_proto_to_nat_proto (ip->protocol);
+ proto = ip->protocol;
- if (PREDICT_FALSE (proto == NAT_PROTOCOL_ICMP))
+ if (PREDICT_FALSE (IP_PROTOCOL_ICMP == proto))
{
ip4_address_t lookup_saddr, lookup_daddr;
u16 lookup_sport, lookup_dport;
@@ -2902,8 +2764,9 @@ nat44_ed_get_out2in_worker_index (vlib_buffer_t *b, ip4_header_t *ip,
b, ip, &lookup_saddr, &lookup_sport, &lookup_daddr, &lookup_dport,
&lookup_protocol))
{
- init_ed_k (&kv16, lookup_saddr, lookup_sport, lookup_daddr,
- lookup_dport, rx_fib_index, lookup_protocol);
+ init_ed_k (&kv16, lookup_saddr.as_u32, lookup_sport,
+ lookup_daddr.as_u32, lookup_dport, rx_fib_index,
+ lookup_protocol);
if (PREDICT_TRUE (
!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16)))
{
@@ -2917,9 +2780,10 @@ nat44_ed_get_out2in_worker_index (vlib_buffer_t *b, ip4_header_t *ip,
}
}
- init_ed_k (&kv16, ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port,
- ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port,
- rx_fib_index, ip->protocol);
+ init_ed_k (&kv16, 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, rx_fib_index,
+ ip->protocol);
if (PREDICT_TRUE (
!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16)))
@@ -2937,18 +2801,18 @@ nat44_ed_get_out2in_worker_index (vlib_buffer_t *b, ip4_header_t *ip,
/* first try static mappings without port */
if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
{
- init_nat_k (&kv, ip->dst_address, 0, 0, 0);
- if (!clib_bihash_search_8_8
- (&sm->static_mapping_by_external, &kv, &value))
+ m = nat44_ed_sm_o2i_lookup (sm, ip->dst_address, 0, 0, proto);
+ if (m)
{
- m = pool_elt_at_index (sm->static_mappings, value.value);
- next_worker_index = m->workers[0];
- goto done;
+ {
+ next_worker_index = m->workers[0];
+ goto done;
+ }
}
}
/* unknown protocol */
- if (PREDICT_FALSE (proto == NAT_PROTOCOL_OTHER))
+ if (PREDICT_FALSE (nat44_ed_is_unk_proto (proto)))
{
/* use current thread */
next_worker_index = vlib_get_thread_index ();
@@ -2969,17 +2833,18 @@ nat44_ed_get_out2in_worker_index (vlib_buffer_t *b, ip4_header_t *ip,
{
/* if error message, then it's not fragmented and we can access it */
ip4_header_t *inner_ip = (ip4_header_t *) (echo + 1);
- proto = ip_proto_to_nat_proto (inner_ip->protocol);
+ proto = inner_ip->protocol;
void *l4_header = ip4_next_header (inner_ip);
switch (proto)
{
- case NAT_PROTOCOL_ICMP:
+ case IP_PROTOCOL_ICMP:
icmp = (icmp46_header_t *) l4_header;
echo = (icmp_echo_header_t *) (icmp + 1);
port = echo->identifier;
break;
- case NAT_PROTOCOL_UDP:
- case NAT_PROTOCOL_TCP:
+ case IP_PROTOCOL_UDP:
+ /* breakthrough */
+ case IP_PROTOCOL_TCP:
port = ((tcp_udp_header_t *) l4_header)->src_port;
break;
default:
@@ -2992,11 +2857,9 @@ nat44_ed_get_out2in_worker_index (vlib_buffer_t *b, ip4_header_t *ip,
/* try static mappings with port */
if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
{
- init_nat_k (&kv, ip->dst_address, port, 0, proto);
- if (!clib_bihash_search_8_8
- (&sm->static_mapping_by_external, &kv, &value))
+ m = nat44_ed_sm_o2i_lookup (sm, ip->dst_address, port, 0, proto);
+ if (m)
{
- m = pool_elt_at_index (sm->static_mappings, value.value);
if (!is_sm_lb (m->flags))
{
next_worker_index = m->workers[0];
@@ -3126,23 +2989,9 @@ nat44_ed_db_init (u32 translations, u32 translation_buckets)
{
snat_main_t *sm = &snat_main;
snat_main_per_thread_data_t *tsm;
- u32 static_mapping_buckets = 1024;
- u32 static_mapping_memory_size = 64 << 20;
reinit_ed_flow_hash ();
- clib_bihash_init_8_8 (&sm->static_mapping_by_local,
- "static_mapping_by_local", static_mapping_buckets,
- static_mapping_memory_size);
- clib_bihash_set_kvp_format_fn_8_8 (&sm->static_mapping_by_local,
- format_static_mapping_kvp);
-
- clib_bihash_init_8_8 (&sm->static_mapping_by_external,
- "static_mapping_by_external", static_mapping_buckets,
- static_mapping_memory_size);
- clib_bihash_set_kvp_format_fn_8_8 (&sm->static_mapping_by_external,
- format_static_mapping_kvp);
-
if (sm->pat)
{
vec_foreach (tsm, sm->per_thread_data)
@@ -3169,8 +3018,6 @@ nat44_ed_db_free ()
pool_free (sm->static_mappings);
clib_bihash_free_16_8 (&sm->flow_hash);
- clib_bihash_free_8_8 (&sm->static_mapping_by_local);
- clib_bihash_free_8_8 (&sm->static_mapping_by_external);
if (sm->pat)
{
@@ -3207,7 +3054,6 @@ nat44_ed_add_del_static_mapping_addr_only_cb (
ip4_main_t *im, uword opaque, u32 sw_if_index, ip4_address_t *address,
u32 address_length, u32 if_address_index, u32 is_delete)
{
- clib_bihash_kv_8_8_t kv, value;
snat_static_map_resolve_t *rp;
snat_main_t *sm = &snat_main;
snat_static_mapping_t *m;
@@ -3233,17 +3079,8 @@ nat44_ed_add_del_static_mapping_addr_only_cb (
return;
}
- init_nat_k (&kv, *address, rp->addr_only ? 0 : rp->e_port,
- sm->outside_fib_index, rp->addr_only ? 0 : rp->proto);
-
- if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
- {
- m = 0;
- }
- else
- {
- m = pool_elt_at_index (sm->static_mappings, value.value);
- }
+ m = nat44_ed_sm_o2i_lookup (sm, *address, rp->addr_only ? 0 : rp->e_port, 0,
+ rp->proto);
if (is_delete)
{
@@ -3486,7 +3323,8 @@ nat44_ed_del_session (snat_main_t *sm, ip4_address_t *addr, u16 port,
else
tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
- init_ed_k (&kv, *addr, port, *eh_addr, eh_port, fib_index, proto);
+ init_ed_k (&kv, addr->as_u32, port, eh_addr->as_u32, eh_port, fib_index,
+ proto);
if (clib_bihash_search_16_8 (&sm->flow_hash, &kv, &value))
{
return VNET_API_ERROR_NO_SUCH_ENTRY;
@@ -3495,7 +3333,7 @@ nat44_ed_del_session (snat_main_t *sm, ip4_address_t *addr, u16 port,
if (pool_is_free_index (tsm->sessions, ed_value_get_session_index (&value)))
return VNET_API_ERROR_UNSPECIFIED;
s = pool_elt_at_index (tsm->sessions, ed_value_get_session_index (&value));
- nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
+ nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1);
return 0;
}
@@ -3601,13 +3439,13 @@ nat_6t_flow_icmp_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b,
static_always_inline void
nat_6t_flow_ip4_translate (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip,
- nat_6t_flow_t *f, nat_protocol_t proto,
+ nat_6t_flow_t *f, ip_protocol_t proto,
int is_icmp_inner_ip4, int skip_saddr_rewrite)
{
udp_header_t *udp = ip4_next_header (ip);
tcp_header_t *tcp = (tcp_header_t *) udp;
- if ((NAT_PROTOCOL_TCP == proto || NAT_PROTOCOL_UDP == proto) &&
+ if ((IP_PROTOCOL_TCP == proto || IP_PROTOCOL_UDP == proto) &&
!vnet_buffer (b)->ip.reass.is_non_first_fragment)
{
if (!is_icmp_inner_ip4)
@@ -3625,7 +3463,7 @@ nat_6t_flow_ip4_translate (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip,
udp->dst_port = f->rewrite.sport;
}
- if (NAT_PROTOCOL_TCP == proto)
+ if (IP_PROTOCOL_TCP == proto)
{
ip_csum_t tcp_sum = tcp->checksum;
tcp_sum = ip_csum_sub_even (tcp_sum, f->l3_csum_delta);
@@ -3633,7 +3471,7 @@ nat_6t_flow_ip4_translate (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip,
mss_clamping (sm->mss_clamping, tcp, &tcp_sum);
tcp->checksum = ip_csum_fold (tcp_sum);
}
- else if (proto == NAT_PROTOCOL_UDP && udp->checksum)
+ else if (IP_PROTOCOL_UDP == proto && udp->checksum)
{
ip_csum_t udp_sum = udp->checksum;
udp_sum = ip_csum_sub_even (udp_sum, f->l3_csum_delta);
@@ -3731,8 +3569,7 @@ nat_6t_flow_icmp_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b,
return NAT_ED_TRNSL_ERR_INNER_IP_CORRUPT;
}
- nat_protocol_t inner_proto =
- ip_proto_to_nat_proto (inner_ip->protocol);
+ ip_protocol_t inner_proto = inner_ip->protocol;
ip_csum_t old_icmp_sum = icmp->checksum;
ip_csum_t old_inner_ip_sum = inner_ip->checksum;
@@ -3744,7 +3581,7 @@ nat_6t_flow_icmp_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b,
switch (inner_proto)
{
- case NAT_PROTOCOL_UDP:
+ case IP_PROTOCOL_UDP:
udp = (udp_header_t *) (inner_ip + 1);
if (!it_fits (vm, b, udp, sizeof (*udp)))
{
@@ -3765,7 +3602,7 @@ nat_6t_flow_icmp_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b,
new_icmp_sum = ip_csum_fold (new_icmp_sum);
icmp->checksum = new_icmp_sum;
break;
- case NAT_PROTOCOL_TCP:
+ case IP_PROTOCOL_TCP:
tcp = (tcp_header_t *) (inner_ip + 1);
if (!it_fits (vm, b, tcp, sizeof (*tcp)))
{
@@ -3786,7 +3623,7 @@ nat_6t_flow_icmp_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b,
new_icmp_sum = ip_csum_fold (new_icmp_sum);
icmp->checksum = new_icmp_sum;
break;
- case NAT_PROTOCOL_ICMP:
+ case IP_PROTOCOL_ICMP:
if (f->ops & NAT_FLOW_OP_ICMP_ID_REWRITE)
{
icmp46_header_t *inner_icmp = ip4_next_header (inner_ip);
@@ -3825,7 +3662,7 @@ nat_6t_flow_icmp_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b,
static_always_inline nat_translation_error_e
nat_6t_flow_buf_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b,
ip4_header_t *ip, nat_6t_flow_t *f,
- nat_protocol_t proto, int is_output_feature,
+ ip_protocol_t proto, int is_output_feature,
int is_i2o)
{
if (!is_output_feature && f->ops & NAT_FLOW_OP_TXFIB_REWRITE)
@@ -3833,7 +3670,7 @@ nat_6t_flow_buf_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b,
vnet_buffer (b)->sw_if_index[VLIB_TX] = f->rewrite.fib_index;
}
- if (NAT_PROTOCOL_ICMP == proto)
+ if (IP_PROTOCOL_ICMP == proto)
{
if (ip->src_address.as_u32 != f->rewrite.saddr.as_u32)
{
@@ -3861,7 +3698,7 @@ nat_6t_flow_buf_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b,
nat_translation_error_e
nat_6t_flow_buf_translate_i2o (vlib_main_t *vm, snat_main_t *sm,
vlib_buffer_t *b, ip4_header_t *ip,
- nat_6t_flow_t *f, nat_protocol_t proto,
+ nat_6t_flow_t *f, ip_protocol_t proto,
int is_output_feature)
{
return nat_6t_flow_buf_translate (vm, sm, b, ip, f, proto, is_output_feature,
@@ -3871,7 +3708,7 @@ nat_6t_flow_buf_translate_i2o (vlib_main_t *vm, snat_main_t *sm,
nat_translation_error_e
nat_6t_flow_buf_translate_o2i (vlib_main_t *vm, snat_main_t *sm,
vlib_buffer_t *b, ip4_header_t *ip,
- nat_6t_flow_t *f, nat_protocol_t proto,
+ nat_6t_flow_t *f, ip_protocol_t proto,
int is_output_feature)
{
return nat_6t_flow_buf_translate (vm, sm, b, ip, f, proto, is_output_feature,
@@ -3981,6 +3818,81 @@ format_nat_6t_flow (u8 *s, va_list *args)
return s;
}
+static inline void
+nat_syslog_nat44_sess (u32 ssubix, u32 sfibix, ip4_address_t *isaddr,
+ u16 isport, ip4_address_t *xsaddr, u16 xsport,
+ ip4_address_t *idaddr, u16 idport,
+ ip4_address_t *xdaddr, u16 xdport, u8 proto, u8 is_add,
+ u8 is_twicenat)
+{
+ syslog_msg_t syslog_msg;
+ fib_table_t *fib;
+
+ if (!syslog_is_enabled ())
+ return;
+
+ if (syslog_severity_filter_block (SADD_SDEL_SEVERITY))
+ return;
+
+ fib = fib_table_get (sfibix, FIB_PROTOCOL_IP4);
+
+ syslog_msg_init (&syslog_msg, NAT_FACILITY, SADD_SDEL_SEVERITY, NAT_APPNAME,
+ is_add ? SADD_MSGID : SDEL_MSGID);
+
+ syslog_msg_sd_init (&syslog_msg, NSESS_SDID);
+ syslog_msg_add_sd_param (&syslog_msg, SSUBIX_SDPARAM_NAME, "%d", ssubix);
+ syslog_msg_add_sd_param (&syslog_msg, SVLAN_SDPARAM_NAME, "%d",
+ fib->ft_table_id);
+ syslog_msg_add_sd_param (&syslog_msg, IATYP_SDPARAM_NAME, IATYP_IPV4);
+ syslog_msg_add_sd_param (&syslog_msg, ISADDR_SDPARAM_NAME, "%U",
+ format_ip4_address, isaddr);
+ syslog_msg_add_sd_param (&syslog_msg, ISPORT_SDPARAM_NAME, "%d",
+ clib_net_to_host_u16 (isport));
+ syslog_msg_add_sd_param (&syslog_msg, XATYP_SDPARAM_NAME, IATYP_IPV4);
+ syslog_msg_add_sd_param (&syslog_msg, XSADDR_SDPARAM_NAME, "%U",
+ format_ip4_address, xsaddr);
+ syslog_msg_add_sd_param (&syslog_msg, XSPORT_SDPARAM_NAME, "%d",
+ clib_net_to_host_u16 (xsport));
+ syslog_msg_add_sd_param (&syslog_msg, PROTO_SDPARAM_NAME, "%d", proto);
+ syslog_msg_add_sd_param (&syslog_msg, XDADDR_SDPARAM_NAME, "%U",
+ format_ip4_address, xdaddr);
+ syslog_msg_add_sd_param (&syslog_msg, XDPORT_SDPARAM_NAME, "%d",
+ clib_net_to_host_u16 (xdport));
+ if (is_twicenat)
+ {
+ syslog_msg_add_sd_param (&syslog_msg, IDADDR_SDPARAM_NAME, "%U",
+ format_ip4_address, idaddr);
+ syslog_msg_add_sd_param (&syslog_msg, IDPORT_SDPARAM_NAME, "%d",
+ clib_net_to_host_u16 (idport));
+ }
+
+ syslog_msg_send (&syslog_msg);
+}
+
+void
+nat_syslog_nat44_sadd (u32 ssubix, u32 sfibix, ip4_address_t *isaddr,
+ u16 isport, ip4_address_t *idaddr, u16 idport,
+ ip4_address_t *xsaddr, u16 xsport,
+ ip4_address_t *xdaddr, u16 xdport, u8 proto,
+ u8 is_twicenat)
+{
+ nat_syslog_nat44_sess (ssubix, sfibix, isaddr, isport, xsaddr, xsport,
+ idaddr, idport, xdaddr, xdport, proto, 1,
+ is_twicenat);
+}
+
+void
+nat_syslog_nat44_sdel (u32 ssubix, u32 sfibix, ip4_address_t *isaddr,
+ u16 isport, ip4_address_t *idaddr, u16 idport,
+ ip4_address_t *xsaddr, u16 xsport,
+ ip4_address_t *xdaddr, u16 xdport, u8 proto,
+ u8 is_twicenat)
+{
+ nat_syslog_nat44_sess (ssubix, sfibix, isaddr, isport, xsaddr, xsport,
+ idaddr, idport, xdaddr, xdport, proto, 0,
+ is_twicenat);
+}
+
/*
* fd.io coding-style-patch-verification: ON
*