#include <nat/nat_det.h>
#include <nat/nat64.h>
#include <nat/nat66.h>
-#include <nat/dslite.h>
-#include <nat/nat_reass.h>
#include <nat/nat_inlines.h>
+#include <nat/nat44/inlines.h>
#include <nat/nat_affinity.h>
#include <nat/nat_syslog.h>
#include <nat/nat_ha.h>
#include <vnet/fib/fib_table.h>
#include <vnet/fib/ip4_fib.h>
+#include <vnet/ip/reass/ip4_sv_reass.h>
+#include <vppinfra/bihash_16_8.h>
+#include <nat/nat44/ed_inlines.h>
#include <vpp/app/version.h>
snat_main_t snat_main;
-/* *INDENT-OFF* */
+fib_source_t nat_fib_src_hi;
+fib_source_t nat_fib_src_low;
+/* *INDENT-OFF* */
/* Hook up input features */
+VNET_FEATURE_INIT (nat_pre_in2out, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "nat-pre-in2out",
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
+ "ip4-sv-reassembly-feature"),
+};
+VNET_FEATURE_INIT (nat_pre_out2in, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "nat-pre-out2in",
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
+ "ip4-dhcp-client-detect",
+ "ip4-sv-reassembly-feature"),
+};
+VNET_FEATURE_INIT (snat_in2out_worker_handoff, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "nat44-in2out-worker-handoff",
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
+};
+VNET_FEATURE_INIT (snat_out2in_worker_handoff, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "nat44-out2in-worker-handoff",
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
+ "ip4-dhcp-client-detect"),
+};
VNET_FEATURE_INIT (ip4_snat_in2out, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-in2out",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa","ip4-sv-reassembly-feature"),
};
VNET_FEATURE_INIT (ip4_snat_out2in, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-out2in",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa","ip4-sv-reassembly-feature",
"ip4-dhcp-client-detect"),
};
VNET_FEATURE_INIT (ip4_nat_classify, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-classify",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa","ip4-sv-reassembly-feature"),
};
VNET_FEATURE_INIT (ip4_snat_det_in2out, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-det-in2out",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa","ip4-sv-reassembly-feature"),
};
VNET_FEATURE_INIT (ip4_snat_det_out2in, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-det-out2in",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa","ip4-sv-reassembly-feature",
"ip4-dhcp-client-detect"),
};
VNET_FEATURE_INIT (ip4_nat_det_classify, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-det-classify",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa","ip4-sv-reassembly-feature"),
};
VNET_FEATURE_INIT (ip4_nat44_ed_in2out, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-ed-in2out",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa","ip4-sv-reassembly-feature"),
};
VNET_FEATURE_INIT (ip4_nat44_ed_out2in, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-ed-out2in",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa","ip4-sv-reassembly-feature",
"ip4-dhcp-client-detect"),
};
VNET_FEATURE_INIT (ip4_nat44_ed_classify, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-ed-classify",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
-};
-VNET_FEATURE_INIT (ip4_snat_in2out_worker_handoff, static) = {
- .arc_name = "ip4-unicast",
- .node_name = "nat44-in2out-worker-handoff",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
-};
-VNET_FEATURE_INIT (ip4_snat_out2in_worker_handoff, static) = {
- .arc_name = "ip4-unicast",
- .node_name = "nat44-out2in-worker-handoff",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
- "ip4-dhcp-client-detect"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa","ip4-sv-reassembly-feature"),
};
VNET_FEATURE_INIT (ip4_nat_handoff_classify, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-handoff-classify",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa","ip4-sv-reassembly-feature"),
};
VNET_FEATURE_INIT (ip4_snat_in2out_fast, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-in2out-fast",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa","ip4-sv-reassembly-feature"),
};
VNET_FEATURE_INIT (ip4_snat_out2in_fast, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-out2in-fast",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa","ip4-sv-reassembly-feature",
"ip4-dhcp-client-detect"),
};
VNET_FEATURE_INIT (ip4_snat_hairpin_dst, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-hairpin-dst",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa","ip4-sv-reassembly-feature"),
};
VNET_FEATURE_INIT (ip4_nat44_ed_hairpin_dst, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-ed-hairpin-dst",
- .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa","ip4-sv-reassembly-feature"),
};
/* Hook up output features */
VNET_FEATURE_INIT (ip4_snat_in2out_output, static) = {
.arc_name = "ip4-output",
.node_name = "nat44-in2out-output",
- .runs_after = VNET_FEATURES ("acl-plugin-out-ip4-fa"),
+ .runs_after = VNET_FEATURES ("acl-plugin-out-ip4-fa","ip4-sv-reassembly-output-feature"),
};
VNET_FEATURE_INIT (ip4_snat_in2out_output_worker_handoff, static) = {
.arc_name = "ip4-output",
.node_name = "nat44-in2out-output-worker-handoff",
- .runs_after = VNET_FEATURES ("acl-plugin-out-ip4-fa"),
+ .runs_after = VNET_FEATURES ("acl-plugin-out-ip4-fa","ip4-sv-reassembly-output-feature"),
};
VNET_FEATURE_INIT (ip4_snat_hairpin_src, static) = {
.arc_name = "ip4-output",
.node_name = "nat44-hairpin-src",
- .runs_after = VNET_FEATURES ("acl-plugin-out-ip4-fa"),
+ .runs_after = VNET_FEATURES ("acl-plugin-out-ip4-fa","ip4-sv-reassembly-output-feature"),
};
VNET_FEATURE_INIT (ip4_nat44_ed_in2out_output, static) = {
.arc_name = "ip4-output",
.node_name = "nat44-ed-in2out-output",
- .runs_after = VNET_FEATURES ("acl-plugin-out-ip4-fa"),
+ .runs_after = VNET_FEATURES ("ip4-sv-reassembly-output-feature"),
+ .runs_before = VNET_FEATURES ("acl-plugin-out-ip4-fa"),
};
VNET_FEATURE_INIT (ip4_nat44_ed_hairpin_src, static) = {
.arc_name = "ip4-output",
.node_name = "nat44-ed-hairpin-src",
- .runs_after = VNET_FEATURES ("acl-plugin-out-ip4-fa"),
+ .runs_after = VNET_FEATURES ("ip4-sv-reassembly-output-feature"),
+ .runs_before = VNET_FEATURES ("acl-plugin-out-ip4-fa"),
};
/* Hook up ip4-local features */
nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index,
u8 is_ha)
{
- snat_session_key_t key;
clib_bihash_kv_8_8_t kv;
- nat_ed_ses_key_t ed_key;
+ u8 proto;
+ u16 r_port, l_port;
+ ip4_address_t *l_addr, *r_addr;
+ u32 fib_index = 0;
clib_bihash_kv_16_8_t ed_kv;
snat_main_per_thread_data_t *tsm =
vec_elt_at_index (sm->per_thread_data, thread_index);
{
if (snat_is_unk_proto_session (s))
{
- ed_key.proto = s->in2out.port;
- ed_key.r_port = 0;
- ed_key.l_port = 0;
+ init_ed_k (&ed_kv, s->in2out.addr, 0, s->ext_host_addr, 0, 0,
+ s->in2out.port);
}
else
{
- ed_key.proto = snat_proto_to_ip_proto (s->in2out.protocol);
- ed_key.l_port = s->in2out.port;
- ed_key.r_port = s->ext_host_port;
+ l_port = s->in2out.port;
+ r_port = s->ext_host_port;
+ l_addr = &s->in2out.addr;
+ r_addr = &s->ext_host_addr;
+ proto = nat_proto_to_ip_proto (s->nat_proto);
+ init_ed_k (&ed_kv, *l_addr, l_port, *r_addr, r_port, fib_index,
+ proto);
}
- ed_key.l_addr = s->in2out.addr;
- ed_key.r_addr = s->ext_host_addr;
- ed_key.fib_index = 0;
- ed_kv.key[0] = ed_key.as_u64[0];
- ed_kv.key[1] = ed_key.as_u64[1];
if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0))
nat_elog_warn ("in2out_ed key del failed");
return;
{
if (is_affinity_sessions (s))
nat_affinity_unlock (s->ext_host_addr, s->out2in.addr,
- s->in2out.protocol, s->out2in.port);
- ed_key.l_addr = s->out2in.addr;
- ed_key.r_addr = s->ext_host_addr;
- ed_key.fib_index = s->out2in.fib_index;
+ s->nat_proto, s->out2in.port);
+ l_addr = &s->out2in.addr;
+ r_addr = &s->ext_host_addr;
+ fib_index = s->out2in.fib_index;
if (snat_is_unk_proto_session (s))
{
- ed_key.proto = s->in2out.port;
- ed_key.r_port = 0;
- ed_key.l_port = 0;
+ proto = s->in2out.port;
+ r_port = 0;
+ l_port = 0;
}
else
{
- ed_key.proto = snat_proto_to_ip_proto (s->in2out.protocol);
- ed_key.l_port = s->out2in.port;
- ed_key.r_port = s->ext_host_port;
+ proto = nat_proto_to_ip_proto (s->nat_proto);
+ l_port = s->out2in.port;
+ r_port = s->ext_host_port;
}
- ed_kv.key[0] = ed_key.as_u64[0];
- ed_kv.key[1] = ed_key.as_u64[1];
- if (clib_bihash_add_del_16_8 (&tsm->out2in_ed, &ed_kv, 0))
+ init_ed_k (&ed_kv, *l_addr, l_port, *r_addr, r_port, fib_index, proto);
+ if (clib_bihash_add_del_16_8 (&sm->out2in_ed, &ed_kv, 0))
nat_elog_warn ("out2in_ed key del failed");
- ed_key.l_addr = s->in2out.addr;
- ed_key.fib_index = s->in2out.fib_index;
+ l_addr = &s->in2out.addr;
+ fib_index = s->in2out.fib_index;
if (!snat_is_unk_proto_session (s))
- ed_key.l_port = s->in2out.port;
+ l_port = s->in2out.port;
if (is_twice_nat_session (s))
{
- ed_key.r_addr = s->ext_host_nat_addr;
- ed_key.r_port = s->ext_host_nat_port;
+ r_addr = &s->ext_host_nat_addr;
+ r_port = s->ext_host_nat_port;
}
- ed_kv.key[0] = ed_key.as_u64[0];
- ed_kv.key[1] = ed_key.as_u64[1];
+ init_ed_k (&ed_kv, *l_addr, l_port, *r_addr, r_port, fib_index, proto);
if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0))
nat_elog_warn ("in2out_ed key del failed");
&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->in2out.protocol, is_twice_nat_session (s));
+ s->nat_proto, is_twice_nat_session (s));
}
else
{
- kv.key = s->in2out.as_u64;
+ init_nat_i2o_k (&kv, s);
if (clib_bihash_add_del_8_8 (&tsm->in2out, &kv, 0))
nat_elog_warn ("in2out key del failed");
- kv.key = s->out2in.as_u64;
+ init_nat_o2i_k (&kv, s);
if (clib_bihash_add_del_8_8 (&tsm->out2in, &kv, 0))
nat_elog_warn ("out2in key del failed");
nat_syslog_nat44_apmdel (s->user_index, s->in2out.fib_index,
&s->in2out.addr, s->in2out.port,
&s->out2in.addr, s->out2in.port,
- s->in2out.protocol);
+ s->nat_proto);
}
if (snat_is_unk_proto_session (s))
snat_ipfix_logging_nat44_ses_delete (thread_index,
s->in2out.addr.as_u32,
s->out2in.addr.as_u32,
- s->in2out.protocol,
+ s->nat_proto,
s->in2out.port,
s->out2in.port,
s->in2out.fib_index);
nat_ha_sdel (&s->out2in.addr, s->out2in.port, &s->ext_host_addr,
- s->ext_host_port, s->out2in.protocol, s->out2in.fib_index,
+ s->ext_host_port, s->nat_proto, s->out2in.fib_index,
+ thread_index);
+ }
+
+ /* Twice NAT address and port for external host */
+ if (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 (snat_is_session_static (s))
+ return;
+
+ snat_free_outside_address_and_port (sm->addresses, thread_index,
+ &s->out2in.addr, s->out2in.port,
+ s->nat_proto);
+}
+
+int
+nat44_set_session_limit (u32 session_limit, u32 vrf_id)
+{
+ snat_main_t *sm = &snat_main;
+ u32 fib_index = fib_table_find (FIB_PROTOCOL_IP4, vrf_id);
+ u32 len = vec_len (sm->max_translations_per_fib);
+
+ if (len <= fib_index)
+ {
+ vec_validate (sm->max_translations_per_fib, fib_index + 1);
+
+ for (; len < vec_len (sm->max_translations_per_fib); len++)
+ sm->max_translations_per_fib[len] = sm->max_translations_per_thread;
+ }
+
+ sm->max_translations_per_fib[fib_index] = session_limit;
+ return 0;
+}
+
+void
+nat44_free_session_data (snat_main_t * sm, snat_session_t * s,
+ u32 thread_index, u8 is_ha)
+{
+ u8 proto;
+ u16 r_port, l_port;
+ ip4_address_t *l_addr, *r_addr;
+ u32 fib_index;
+ clib_bihash_kv_16_8_t ed_kv;
+ snat_main_per_thread_data_t *tsm =
+ vec_elt_at_index (sm->per_thread_data, thread_index);
+
+ if (is_fwd_bypass_session (s))
+ {
+ if (snat_is_unk_proto_session (s))
+ {
+ proto = s->in2out.port;
+ r_port = 0;
+ l_port = 0;
+ }
+ else
+ {
+ proto = nat_proto_to_ip_proto (s->nat_proto);
+ l_port = s->in2out.port;
+ r_port = s->ext_host_port;
+ }
+
+ l_addr = &s->in2out.addr;
+ r_addr = &s->ext_host_addr;
+ fib_index = 0;
+ init_ed_k (&ed_kv, *l_addr, l_port, *r_addr, r_port, fib_index, proto);
+
+ if (PREDICT_FALSE
+ (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0)))
+ nat_elog_warn ("in2out_ed key del failed");
+ return;
+ }
+
+ /* session lookup tables */
+ if (is_affinity_sessions (s))
+ nat_affinity_unlock (s->ext_host_addr, s->out2in.addr,
+ s->nat_proto, s->out2in.port);
+ l_addr = &s->out2in.addr;
+ r_addr = &s->ext_host_addr;
+ fib_index = s->out2in.fib_index;
+ if (snat_is_unk_proto_session (s))
+ {
+ proto = s->in2out.port;
+ r_port = 0;
+ l_port = 0;
+ }
+ else
+ {
+ proto = nat_proto_to_ip_proto (s->nat_proto);
+ l_port = s->out2in.port;
+ r_port = s->ext_host_port;
+ }
+ init_ed_k (&ed_kv, *l_addr, l_port, *r_addr, r_port, fib_index, proto);
+
+ if (PREDICT_FALSE (clib_bihash_add_del_16_8 (&sm->out2in_ed, &ed_kv, 0)))
+ nat_elog_warn ("out2in_ed key del failed");
+
+ l_addr = &s->in2out.addr;
+ fib_index = s->in2out.fib_index;
+
+ if (!snat_is_unk_proto_session (s))
+ l_port = s->in2out.port;
+
+ if (is_twice_nat_session (s))
+ {
+ r_addr = &s->ext_host_nat_addr;
+ r_port = s->ext_host_nat_port;
+ }
+ init_ed_k (&ed_kv, *l_addr, l_port, *r_addr, r_port, fib_index, proto);
+
+ if (PREDICT_FALSE (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0)))
+ nat_elog_warn ("in2out_ed key del failed");
+
+ if (!is_ha)
+ {
+ nat_syslog_nat44_sdel (s->user_index, 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, is_twice_nat_session (s));
+ }
+
+ if (snat_is_unk_proto_session (s))
+ return;
+
+ if (!is_ha)
+ {
+ snat_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);
+ nat_ha_sdel (&s->out2in.addr, s->out2in.port, &s->ext_host_addr,
+ s->ext_host_port, s->nat_proto, s->out2in.fib_index,
thread_index);
}
/* Twice NAT address and port for external host */
if (is_twice_nat_session (s))
{
- key.protocol = s->in2out.protocol;
- key.port = s->ext_host_nat_port;
- key.addr.as_u32 = s->ext_host_nat_addr.as_u32;
snat_free_outside_address_and_port (sm->twice_nat_addresses,
- thread_index, &key);
+ thread_index,
+ &s->ext_host_nat_addr,
+ s->ext_host_nat_port, s->nat_proto);
}
if (snat_is_session_static (s))
return;
snat_free_outside_address_and_port (sm->addresses, thread_index,
- &s->out2in);
+ &s->out2in.addr, s->out2in.port,
+ s->nat_proto);
}
+
snat_user_t *
nat_user_get_or_create (snat_main_t * sm, ip4_address_t * addr, u32 fib_index,
u32 thread_index)
/* Ever heard of the "user" = src ip4 address before? */
if (clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
{
+ if (pool_elts (tsm->users) >= sm->max_users_per_thread)
+ {
+ vlib_increment_simple_counter (&sm->user_limit_reached,
+ thread_index, 0, 1);
+ nat_elog_warn ("maximum user limit reached");
+ return NULL;
+ }
/* no, make a new one */
pool_get (tsm->users, u);
clib_memset (u, 0, sizeof (*u));
+
u->addr.as_u32 = addr->as_u32;
u->fib_index = fib_index;
/* add user */
if (clib_bihash_add_del_8_8 (&tsm->user_hash, &kv, 1))
- nat_elog_warn ("user_hash keay add failed");
+ {
+ nat_elog_warn ("user_hash key add failed");
+ nat44_delete_user_with_no_session (sm, u, thread_index);
+ return NULL;
+ }
vlib_set_simple_counter (&sm->total_users, thread_index, 0,
pool_elts (tsm->users));
return s;
}
-snat_session_t *
-nat_ed_session_alloc (snat_main_t * sm, snat_user_t * u, u32 thread_index,
- f64 now)
-{
- snat_session_t *s;
- snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
- dlist_elt_t *per_user_translation_list_elt, *oldest_elt;
- u32 oldest_index;
- u64 sess_timeout_time;
-
- if (PREDICT_FALSE (!(u->nsessions) && !(u->nstaticsessions)))
- goto alloc_new;
-
- oldest_index =
- clib_dlist_remove_head (tsm->list_pool,
- u->sessions_per_user_list_head_index);
- oldest_elt = pool_elt_at_index (tsm->list_pool, oldest_index);
- s = pool_elt_at_index (tsm->sessions, oldest_elt->value);
- sess_timeout_time = s->last_heard + (f64) nat44_session_get_timeout (sm, s);
- if (now >= sess_timeout_time)
- {
- clib_dlist_addtail (tsm->list_pool,
- u->sessions_per_user_list_head_index, oldest_index);
- nat_free_session_data (sm, s, thread_index, 0);
- if (snat_is_session_static (s))
- u->nstaticsessions--;
- else
- u->nsessions--;
- s->flags = 0;
- s->total_bytes = 0;
- s->total_pkts = 0;
- s->state = 0;
- s->ext_host_addr.as_u32 = 0;
- s->ext_host_port = 0;
- s->ext_host_nat_addr.as_u32 = 0;
- s->ext_host_nat_port = 0;
- }
- else
- {
- clib_dlist_addhead (tsm->list_pool,
- u->sessions_per_user_list_head_index, oldest_index);
- if ((u->nsessions + u->nstaticsessions) >=
- sm->max_translations_per_user)
- {
- nat_elog_addr (SNAT_LOG_WARNING, "[warn] max translations per user",
- clib_net_to_host_u32 (u->addr.as_u32));
- snat_ipfix_logging_max_entries_per_user
- (thread_index, sm->max_translations_per_user, u->addr.as_u32);
- return 0;
- }
- else
- {
- alloc_new:
- pool_get (tsm->sessions, s);
- clib_memset (s, 0, sizeof (*s));
-
- /* Create list elts */
- pool_get (tsm->list_pool, per_user_translation_list_elt);
- clib_dlist_init (tsm->list_pool,
- per_user_translation_list_elt - tsm->list_pool);
-
- per_user_translation_list_elt->value = s - tsm->sessions;
- s->per_user_index = per_user_translation_list_elt - tsm->list_pool;
- s->per_user_list_head_index = u->sessions_per_user_list_head_index;
-
- clib_dlist_addtail (tsm->list_pool,
- s->per_user_list_head_index,
- per_user_translation_list_elt - tsm->list_pool);
- }
-
- vlib_set_simple_counter (&sm->total_sessions, thread_index, 0,
- pool_elts (tsm->sessions));
- }
-
- s->ha_last_refreshed = now;
-
- return s;
-}
-
void
snat_add_del_addr_to_fib (ip4_address_t * addr, u8 p_len, u32 sw_if_index,
int is_add)
if (is_add)
fib_table_entry_update_one_path (fib_index,
&prefix,
- FIB_SOURCE_PLUGIN_LOW,
+ nat_fib_src_low,
(FIB_ENTRY_FLAG_CONNECTED |
FIB_ENTRY_FLAG_LOCAL |
FIB_ENTRY_FLAG_EXCLUSIVE),
sw_if_index,
~0, 1, NULL, FIB_ROUTE_PATH_FLAG_NONE);
else
- fib_table_entry_delete (fib_index, &prefix, FIB_SOURCE_PLUGIN_LOW);
+ fib_table_entry_delete (fib_index, &prefix, nat_fib_src_low);
}
int
if (vrf_id != ~0)
ap->fib_index =
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, vrf_id,
- FIB_SOURCE_PLUGIN_LOW);
+ nat_fib_src_low);
else
ap->fib_index = ~0;
#define _(N, i, n, s) \
- clib_bitmap_alloc (ap->busy_##n##_port_bitmap, 65535); \
+ 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_snat_protocol
+ foreach_nat_protocol
#undef _
if (twice_nat)
return 0;
return 0;
}
-void
-increment_v4_address (ip4_address_t * a)
-{
- u32 v;
-
- v = clib_net_to_host_u32 (a->as_u32) + 1;
- a->as_u32 = clib_host_to_net_u32 (v);
-}
-
static void
snat_add_static_mapping_when_resolved (snat_main_t * sm,
ip4_address_t l_addr,
u32 sw_if_index,
u16 e_port,
u32 vrf_id,
- snat_protocol_t proto,
+ nat_protocol_t proto,
int addr_only, int is_add, u8 * tag,
int twice_nat, int out2in_only,
int identity_nat)
return thread_idx;
}
+void
+snat_static_mapping_del_sessions (snat_main_t * sm,
+ snat_main_per_thread_data_t * tsm,
+ snat_user_key_t u_key, int addr_only,
+ ip4_address_t e_addr, u16 e_port)
+{
+ clib_bihash_kv_8_8_t kv, value;
+ kv.key = u_key.as_u64;
+ u64 user_index;
+ dlist_elt_t *head, *elt;
+ snat_user_t *u;
+ snat_session_t *s;
+ u32 elt_index, head_index, ses_index;
+ if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
+ {
+ user_index = value.value;
+ u = pool_elt_at_index (tsm->users, user_index);
+ if (u->nstaticsessions)
+ {
+ head_index = u->sessions_per_user_list_head_index;
+ head = pool_elt_at_index (tsm->list_pool, head_index);
+ elt_index = head->next;
+ elt = pool_elt_at_index (tsm->list_pool, elt_index);
+ ses_index = elt->value;
+ while (ses_index != ~0)
+ {
+ s = pool_elt_at_index (tsm->sessions, ses_index);
+ elt = pool_elt_at_index (tsm->list_pool, elt->next);
+ ses_index = elt->value;
+
+ if (!addr_only)
+ {
+ if ((s->out2in.addr.as_u32 != e_addr.as_u32) ||
+ (s->out2in.port != e_port))
+ continue;
+ }
+
+ if (is_lb_session (s))
+ continue;
+
+ if (!snat_is_session_static (s))
+ continue;
+
+ nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
+ nat44_delete_session (sm, s, tsm - sm->per_thread_data);
+
+ if (!addr_only)
+ break;
+ }
+ }
+ }
+}
+
+void
+snat_ed_static_mapping_del_sessions (snat_main_t * sm,
+ snat_main_per_thread_data_t * tsm,
+ ip4_address_t l_addr,
+ u16 l_port,
+ u8 protocol,
+ u32 fib_index, int addr_only,
+ ip4_address_t e_addr, u16 e_port)
+{
+ snat_session_t *s;
+ u32 *indexes_to_free = NULL;
+ /* *INDENT-OFF* */
+ pool_foreach (s, tsm->sessions, {
+ if (s->in2out.fib_index != fib_index ||
+ s->in2out.addr.as_u32 != l_addr.as_u32)
+ {
+ continue;
+ }
+ 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 (is_lb_session (s))
+ continue;
+ if (!snat_is_session_static (s))
+ continue;
+ nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
+ vec_add1 (indexes_to_free, s - tsm->sessions);
+ if (!addr_only)
+ break;
+ });
+ /* *INDENT-ON* */
+ u32 *ses_index;
+ vec_foreach (ses_index, indexes_to_free)
+ {
+ s = pool_elt_at_index (tsm->sessions, *ses_index);
+ nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1);
+ }
+ vec_free (indexes_to_free);
+}
+
int
snat_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
u16 l_port, u16 e_port, u32 vrf_id, int addr_only,
- u32 sw_if_index, snat_protocol_t proto, int is_add,
+ u32 sw_if_index, nat_protocol_t proto, int is_add,
twice_nat_type_t twice_nat, u8 out2in_only, u8 * tag,
u8 identity_nat)
{
snat_main_t *sm = &snat_main;
snat_static_mapping_t *m;
- snat_session_key_t m_key;
clib_bihash_kv_8_8_t kv, value;
snat_address_t *a = 0;
u32 fib_index = ~0;
}
}
- m_key.addr = e_addr;
- m_key.port = addr_only ? 0 : e_port;
- m_key.protocol = addr_only ? 0 : proto;
- m_key.fib_index = 0;
- kv.key = m_key.as_u64;
+ init_nat_k (&kv, e_addr, addr_only ? 0 : e_port, 0, addr_only ? 0 : proto);
if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
m = 0;
else
local->vrf_id = vrf_id;
local->fib_index =
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, vrf_id,
- FIB_SOURCE_PLUGIN_LOW);
- m_key.addr = m->local_addr;
- m_key.port = m->local_port;
- m_key.protocol = m->proto;
- m_key.fib_index = local->fib_index;
- kv.key = m_key.as_u64;
- kv.value = m - sm->static_mappings;
+ nat_fib_src_low);
+ init_nat_kv (&kv, m->local_addr, m->local_port,
+ local->fib_index, m->proto,
+ m - sm->static_mappings);
clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1);
return 0;
}
if (vrf_id != ~0)
fib_index =
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, vrf_id,
- FIB_SOURCE_PLUGIN_LOW);
+ nat_fib_src_low);
/* If not specified use inside VRF id from SNAT plugin startup config */
else
{
fib_index = sm->inside_fib_index;
vrf_id = sm->inside_vrf_id;
- fib_table_lock (fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_PLUGIN_LOW);
+ fib_table_lock (fib_index, FIB_PROTOCOL_IP4, nat_fib_src_low);
}
if (!(out2in_only || identity_nat))
{
- m_key.addr = l_addr;
- m_key.port = addr_only ? 0 : l_port;
- m_key.protocol = addr_only ? 0 : proto;
- m_key.fib_index = fib_index;
- kv.key = m_key.as_u64;
+ init_nat_k (&kv, l_addr, addr_only ? 0 : l_port, fib_index,
+ addr_only ? 0 : proto);
if (!clib_bihash_search_8_8
(&sm->static_mapping_by_local, &kv, &value))
return VNET_API_ERROR_VALUE_EXIST;
switch (proto)
{
#define _(N, j, n, s) \
- case SNAT_PROTOCOL_##N: \
- if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, e_port)) \
+ case NAT_PROTOCOL_##N: \
+ if (a->busy_##n##_port_refcounts[e_port]) \
return VNET_API_ERROR_INVALID_VALUE; \
- clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 1); \
+ ++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_snat_protocol
+ foreach_nat_protocol
#undef _
default:
nat_elog_info ("unknown protocol");
ip4_header_t ip = {
.src_address = m->local_addr,
};
- vec_add1 (m->workers, sm->worker_in2out_cb (&ip, m->fib_index));
+ vec_add1 (m->workers, sm->worker_in2out_cb (&ip, m->fib_index, 0));
tsm = vec_elt_at_index (sm->per_thread_data, m->workers[0]);
}
else
tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
- m_key.addr = m->local_addr;
- m_key.port = m->local_port;
- m_key.protocol = m->proto;
- m_key.fib_index = fib_index;
- kv.key = m_key.as_u64;
- kv.value = m - sm->static_mappings;
+ init_nat_kv (&kv, m->local_addr, m->local_port, fib_index, m->proto,
+ m - sm->static_mappings);
if (!out2in_only)
clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1);
- m_key.addr = m->external_addr;
- m_key.port = m->external_port;
- m_key.fib_index = 0;
- kv.key = m_key.as_u64;
- kv.value = m - sm->static_mappings;
+ init_nat_kv (&kv, m->external_addr, m->external_port, 0, m->proto,
+ m - sm->static_mappings);
clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 1);
/* Delete dynamic sessions matching local address (+ local port) */
if (snat_is_session_static (s))
continue;
- if (!addr_only
- && (clib_net_to_host_u16 (s->in2out.port) !=
- m->local_port))
+ if (!addr_only && s->in2out.port != m->local_port)
continue;
nat_free_session_data (sm, s,
switch (proto)
{
#define _(N, j, n, s) \
- case SNAT_PROTOCOL_##N: \
- clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 0); \
+ 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_snat_protocol
+ foreach_nat_protocol
#undef _
default:
nat_elog_info ("unknown protocol");
else
tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
- m_key.addr = m->local_addr;
- m_key.port = m->local_port;
- m_key.protocol = m->proto;
- m_key.fib_index = fib_index;
- kv.key = m_key.as_u64;
+ init_nat_k (&kv, m->local_addr, m->local_port, fib_index, m->proto);
if (!out2in_only)
clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 0);
if (!(sm->static_mapping_only) ||
(sm->static_mapping_only && sm->static_mapping_connection_tracking))
{
- u_key.addr = m->local_addr;
- u_key.fib_index = fib_index;
- kv.key = u_key.as_u64;
- if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
+ if (sm->endpoint_dependent)
{
- user_index = value.value;
- u = pool_elt_at_index (tsm->users, user_index);
- if (u->nstaticsessions)
- {
- head_index = u->sessions_per_user_list_head_index;
- head = pool_elt_at_index (tsm->list_pool, head_index);
- elt_index = head->next;
- elt = pool_elt_at_index (tsm->list_pool, elt_index);
- ses_index = elt->value;
- while (ses_index != ~0)
- {
- s = pool_elt_at_index (tsm->sessions, ses_index);
- elt = pool_elt_at_index (tsm->list_pool, elt->next);
- ses_index = elt->value;
-
- if (!addr_only)
- {
- if ((s->out2in.addr.as_u32 != e_addr.as_u32) ||
- (clib_net_to_host_u16 (s->out2in.port) !=
- e_port))
- continue;
- }
-
- if (is_lb_session (s))
- continue;
-
- if (!snat_is_session_static (s))
- continue;
-
- nat_free_session_data (sm, s,
- tsm - sm->per_thread_data, 0);
- nat44_delete_session (sm, s, tsm - sm->per_thread_data);
-
- if (!addr_only && !sm->endpoint_dependent)
- break;
- }
- }
+ snat_ed_static_mapping_del_sessions (sm, tsm, m->local_addr,
+ m->local_port, m->proto,
+ fib_index, addr_only,
+ e_addr, e_port);
+ }
+ else
+ {
+ u_key.addr = m->local_addr;
+ u_key.fib_index = fib_index;
+ kv.key = u_key.as_u64;
+ snat_static_mapping_del_sessions (sm, tsm, u_key, addr_only,
+ e_addr, e_port);
}
}
- fib_table_unlock (fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_PLUGIN_LOW);
+ fib_table_unlock (fib_index, FIB_PROTOCOL_IP4, nat_fib_src_low);
if (pool_elts (m->locals))
return 0;
- m_key.addr = m->external_addr;
- m_key.port = m->external_port;
- m_key.fib_index = 0;
- kv.key = m_key.as_u64;
+ init_nat_k (&kv, m->external_addr, m->external_port, 0, m->proto);
clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 0);
vec_free (m->tag);
int
nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
- snat_protocol_t proto,
+ nat_protocol_t proto,
nat44_lb_addr_port_t * locals, u8 is_add,
twice_nat_type_t twice_nat, u8 out2in_only,
u8 * tag, u32 affinity)
{
snat_main_t *sm = &snat_main;
snat_static_mapping_t *m;
- snat_session_key_t m_key;
clib_bihash_kv_8_8_t kv, value;
snat_address_t *a = 0;
int i;
nat44_lb_addr_port_t *local;
- u32 elt_index, head_index, ses_index;
snat_main_per_thread_data_t *tsm;
- snat_user_key_t u_key;
- snat_user_t *u;
snat_session_t *s;
- dlist_elt_t *head, *elt;
uword *bitmap = 0;
if (!sm->endpoint_dependent)
return VNET_API_ERROR_FEATURE_DISABLED;
- m_key.addr = e_addr;
- m_key.port = e_port;
- m_key.protocol = proto;
- m_key.fib_index = 0;
- kv.key = m_key.as_u64;
+ 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
switch (proto)
{
#define _(N, j, n, s) \
- case SNAT_PROTOCOL_##N: \
- if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, e_port)) \
+ case NAT_PROTOCOL_##N: \
+ if (a->busy_##n##_port_refcounts[e_port]) \
return VNET_API_ERROR_INVALID_VALUE; \
- clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 1); \
+ ++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_snat_protocol
+ foreach_nat_protocol
#undef _
default:
nat_elog_info ("unknown protocol");
else
m->affinity_per_service_list_head_index = ~0;
- m_key.addr = m->external_addr;
- m_key.port = m->external_port;
- m_key.protocol = m->proto;
- m_key.fib_index = 0;
- kv.key = m_key.as_u64;
- kv.value = m - sm->static_mappings;
+ init_nat_kv (&kv, m->external_addr, m->external_port, 0, m->proto,
+ m - sm->static_mappings);
if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 1))
{
nat_elog_err ("static_mapping_by_external key add failed");
return VNET_API_ERROR_UNSPECIFIED;
}
- m_key.fib_index = m->fib_index;
for (i = 0; i < vec_len (locals); i++)
{
locals[i].fib_index =
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
locals[i].vrf_id,
- FIB_SOURCE_PLUGIN_LOW);
- m_key.addr = locals[i].addr;
- m_key.fib_index = locals[i].fib_index;
+ nat_fib_src_low);
if (!out2in_only)
{
- m_key.port = locals[i].port;
- kv.key = m_key.as_u64;
- kv.value = m - sm->static_mappings;
+ init_nat_kv (&kv, locals[i].addr, locals[i].port,
+ locals[i].fib_index, m->proto,
+ m - sm->static_mappings);
clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1);
}
locals[i].prefix = (i == 0) ? locals[i].probability :
};
bitmap =
clib_bitmap_set (bitmap,
- sm->worker_in2out_cb (&ip, m->fib_index), 1);
+ sm->worker_in2out_cb (&ip, m->fib_index, 0),
+ 1);
}
}
switch (proto)
{
#define _(N, j, n, s) \
- case SNAT_PROTOCOL_##N: \
- clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 0); \
+ 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_snat_protocol
+ foreach_nat_protocol
#undef _
default:
nat_elog_info ("unknown protocol");
}
}
- m_key.addr = m->external_addr;
- m_key.port = m->external_port;
- m_key.protocol = m->proto;
- m_key.fib_index = 0;
- kv.key = m_key.as_u64;
+ 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 ("static_mapping_by_external key del failed");
pool_foreach (local, m->locals,
({
fib_table_unlock (local->fib_index, FIB_PROTOCOL_IP4,
- FIB_SOURCE_PLUGIN_LOW);
- m_key.addr = local->addr;
+ nat_fib_src_low);
if (!out2in_only)
{
- m_key.port = local->port;
- m_key.fib_index = local->fib_index;
- kv.key = m_key.as_u64;
+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))
{
nat_elog_err ("static_mapping_by_local key del failed");
.src_address = local->addr,
};
tsm = vec_elt_at_index (sm->per_thread_data,
- sm->worker_in2out_cb (&ip, m->fib_index));
+ sm->worker_in2out_cb (&ip, m->fib_index, 0));
}
else
tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
/* Delete sessions */
- u_key.addr = local->addr;
- u_key.fib_index = local->fib_index;
- kv.key = u_key.as_u64;
- if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
- {
- u = pool_elt_at_index (tsm->users, value.value);
- if (u->nstaticsessions)
- {
- head_index = u->sessions_per_user_list_head_index;
- head = pool_elt_at_index (tsm->list_pool, head_index);
- elt_index = head->next;
- elt = pool_elt_at_index (tsm->list_pool, elt_index);
- ses_index = elt->value;
- while (ses_index != ~0)
- {
- s = pool_elt_at_index (tsm->sessions, ses_index);
- elt = pool_elt_at_index (tsm->list_pool, elt->next);
- ses_index = elt->value;
-
- if (!(is_lb_session (s)))
- continue;
-
- if ((s->in2out.addr.as_u32 != local->addr.as_u32) ||
- (clib_net_to_host_u16 (s->in2out.port) != local->port))
- continue;
-
- nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
- nat44_delete_session (sm, s, tsm - sm->per_thread_data);
- }
- }
- }
+ pool_foreach (s, tsm->sessions, {
+ if (!(is_lb_session (s)))
+ continue;
+
+ if ((s->in2out.addr.as_u32 != local->addr.as_u32) ||
+ s->in2out.port != local->port)
+ continue;
+
+ nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
+ nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1);
+ });
}));
/* *INDENT-ON* */
if (m->affinity)
int
nat44_lb_static_mapping_add_del_local (ip4_address_t e_addr, u16 e_port,
ip4_address_t l_addr, u16 l_port,
- snat_protocol_t proto, u32 vrf_id,
+ nat_protocol_t proto, u32 vrf_id,
u8 probability, u8 is_add)
{
snat_main_t *sm = &snat_main;
snat_static_mapping_t *m = 0;
- snat_session_key_t m_key;
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_user_key_t u_key;
- snat_user_t *u;
snat_session_t *s;
- dlist_elt_t *head, *elt;
- u32 elt_index, head_index, ses_index, *locals = 0;
+ u32 *locals = 0;
uword *bitmap = 0;
int i;
if (!sm->endpoint_dependent)
return VNET_API_ERROR_FEATURE_DISABLED;
- m_key.addr = e_addr;
- m_key.port = e_port;
- m_key.protocol = proto;
- m_key.fib_index = 0;
- kv.key = m_key.as_u64;
+ 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);
local->vrf_id = vrf_id;
local->fib_index =
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, vrf_id,
- FIB_SOURCE_PLUGIN_LOW);
+ nat_fib_src_low);
if (!is_out2in_only_static_mapping (m))
{
- m_key.addr = l_addr;
- m_key.port = l_port;
- m_key.fib_index = local->fib_index;
- kv.key = m_key.as_u64;
- kv.value = m - sm->static_mappings;
+ init_nat_kv (&kv, l_addr, l_port, local->fib_index, proto,
+ m - sm->static_mappings);
if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1))
nat_elog_err ("static_mapping_by_local key add failed");
}
return VNET_API_ERROR_UNSPECIFIED;
fib_table_unlock (match_local->fib_index, FIB_PROTOCOL_IP4,
- FIB_SOURCE_PLUGIN_LOW);
+ nat_fib_src_low);
if (!is_out2in_only_static_mapping (m))
{
- m_key.addr = l_addr;
- m_key.port = l_port;
- m_key.fib_index = match_local->fib_index;
- kv.key = m_key.as_u64;
+ 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 ("static_mapping_by_local key del failed");
}
.src_address = local->addr,
};
tsm = vec_elt_at_index (sm->per_thread_data,
- sm->worker_in2out_cb (&ip, m->fib_index));
+ sm->worker_in2out_cb (&ip, m->fib_index,
+ 0));
}
else
tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
/* Delete sessions */
- u_key.addr = match_local->addr;
- u_key.fib_index = match_local->fib_index;
- kv.key = u_key.as_u64;
- if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
- {
- u = pool_elt_at_index (tsm->users, value.value);
- if (u->nstaticsessions)
- {
- head_index = u->sessions_per_user_list_head_index;
- head = pool_elt_at_index (tsm->list_pool, head_index);
- elt_index = head->next;
- elt = pool_elt_at_index (tsm->list_pool, elt_index);
- ses_index = elt->value;
- while (ses_index != ~0)
- {
- s = pool_elt_at_index (tsm->sessions, ses_index);
- elt = pool_elt_at_index (tsm->list_pool, elt->next);
- ses_index = elt->value;
-
- if (!(is_lb_session (s)))
- continue;
+ /* *INDENT-OFF* */
+ pool_foreach (s, tsm->sessions, {
+ if (!(is_lb_session (s)))
+ continue;
- if ((s->in2out.addr.as_u32 != match_local->addr.as_u32) ||
- (clib_net_to_host_u16 (s->in2out.port) !=
- match_local->port))
- continue;
+ if ((s->in2out.addr.as_u32 != match_local->addr.as_u32) ||
+ s->in2out.port != match_local->port)
+ continue;
- nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
- nat44_delete_session (sm, s, tsm - sm->per_thread_data);
- }
- }
- }
+ nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
+ nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1);
+ });
+ /* *INDENT-ON* */
pool_put (m->locals, match_local);
}
ip4_header_t ip;
ip.src_address.as_u32 = local->addr.as_u32,
bitmap = clib_bitmap_set (bitmap,
- sm->worker_in2out_cb (&ip, local->fib_index),
+ sm->worker_in2out_cb (&ip, local->fib_index, 0),
1);
}
}));
}
if (a->fib_index != ~0)
- fib_table_unlock (a->fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_PLUGIN_LOW);
+ fib_table_unlock (a->fib_index, FIB_PROTOCOL_IP4, nat_fib_src_low);
/* Delete sessions using address */
if (a->busy_tcp_ports || a->busy_udp_ports || a->busy_icmp_ports)
}
}));
- vec_foreach (ses_index, ses_to_be_removed)
- {
- ses = pool_elt_at_index (tsm->sessions, ses_index[0]);
- nat44_delete_session (sm, ses, tsm - sm->per_thread_data);
- }
+ if (sm->endpoint_dependent){
+ 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);
+ }
+ }else{
+ vec_foreach (ses_index, ses_to_be_removed)
+ {
+ ses = pool_elt_at_index (tsm->sessions, ses_index[0]);
+ nat44_delete_session (sm, ses, tsm - sm->per_thread_data);
+ }
+ }
vec_free (ses_to_be_removed);
}
}
#define _(N, i, n, s) \
- clib_bitmap_free (a->busy_##n##_port_bitmap); \
vec_free (a->busy_##n##_ports_per_thread);
- foreach_snat_protocol
+ foreach_nat_protocol
#undef _
if (twice_nat)
{
else if (sm->deterministic)
feature_name = is_inside ? "nat44-det-in2out" : "nat44-det-out2in";
else if (sm->endpoint_dependent)
- feature_name = is_inside ? "nat44-ed-in2out" : "nat44-ed-out2in";
+ {
+ feature_name = is_inside ? "nat-pre-in2out" : "nat-pre-out2in";
+ }
else
feature_name = is_inside ? "nat44-in2out" : "nat44-out2in";
}
if (sm->fq_in2out_index == ~0 && !sm->deterministic && sm->num_workers > 1)
- sm->fq_in2out_index = vlib_frame_queue_main_init (sm->in2out_node_index,
- NAT_FQ_NELTS);
+ sm->fq_in2out_index =
+ vlib_frame_queue_main_init (sm->in2out_node_index, NAT_FQ_NELTS);
if (sm->fq_out2in_index == ~0 && !sm->deterministic && sm->num_workers > 1)
- sm->fq_out2in_index = vlib_frame_queue_main_init (sm->out2in_node_index,
- NAT_FQ_NELTS);
+ sm->fq_out2in_index =
+ vlib_frame_queue_main_init (sm->out2in_node_index, NAT_FQ_NELTS);
if (!is_inside)
{
else if (sm->endpoint_dependent)
{
del_feature_name = "nat44-ed-classify";
- feature_name = !is_inside ? "nat44-ed-in2out" :
- "nat44-ed-out2in";
+ feature_name = !is_inside ? "nat-pre-in2out" :
+ "nat-pre-out2in";
}
else
{
feature_name = !is_inside ? "nat44-in2out" : "nat44-out2in";
}
+ int rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 0);
+ if (rv)
+ return rv;
vnet_feature_enable_disable ("ip4-unicast", del_feature_name,
sw_if_index, 0, 0, 0);
vnet_feature_enable_disable ("ip4-unicast", feature_name,
}
else
{
+ int rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 0);
+ if (rv)
+ return rv;
vnet_feature_enable_disable ("ip4-unicast", feature_name,
sw_if_index, 0, 0, 0);
pool_put (sm->interfaces, i);
}
else if (sm->endpoint_dependent)
{
- del_feature_name = !is_inside ? "nat44-ed-in2out" :
- "nat44-ed-out2in";
+ del_feature_name = !is_inside ? "nat-pre-in2out" :
+ "nat-pre-out2in";
+
feature_name = "nat44-ed-classify";
}
else
feature_name = "nat44-classify";
}
+ int rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 1);
+ if (rv)
+ return rv;
vnet_feature_enable_disable ("ip4-unicast", del_feature_name,
sw_if_index, 0, 0, 0);
vnet_feature_enable_disable ("ip4-unicast", feature_name,
vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index, 1, 0,
0);
+ int rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 1);
+ if (rv)
+ return rv;
+
if (is_inside && !sm->out2in_dpo)
{
if (sm->endpoint_dependent)
{
if (sm->endpoint_dependent)
{
+ int rv =
+ ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, !is_del);
+ if (rv)
+ return rv;
+ rv =
+ ip4_sv_reass_output_enable_disable_with_refcnt (sw_if_index,
+ !is_del);
+ if (rv)
+ return rv;
vnet_feature_enable_disable ("ip4-unicast", "nat44-ed-hairpin-dst",
sw_if_index, !is_del, 0, 0);
vnet_feature_enable_disable ("ip4-output", "nat44-ed-hairpin-src",
}
else
{
+ int rv =
+ ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, !is_del);
+ if (rv)
+ return rv;
+ rv =
+ ip4_sv_reass_output_enable_disable_with_refcnt (sw_if_index,
+ !is_del);
+ if (rv)
+ return rv;
vnet_feature_enable_disable ("ip4-unicast", "nat44-hairpin-dst",
sw_if_index, !is_del, 0, 0);
vnet_feature_enable_disable ("ip4-output", "nat44-hairpin-src",
if (sm->num_workers > 1)
{
+ int rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, !is_del);
+ if (rv)
+ return rv;
+ rv =
+ ip4_sv_reass_output_enable_disable_with_refcnt (sw_if_index, !is_del);
+ if (rv)
+ return rv;
vnet_feature_enable_disable ("ip4-unicast",
"nat44-out2in-worker-handoff",
sw_if_index, !is_del, 0, 0);
{
if (sm->endpoint_dependent)
{
- vnet_feature_enable_disable ("ip4-unicast", "nat44-ed-out2in",
+ int rv =
+ ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, !is_del);
+ if (rv)
+ return rv;
+ rv =
+ ip4_sv_reass_output_enable_disable_with_refcnt (sw_if_index,
+ !is_del);
+ if (rv)
+ return rv;
+ vnet_feature_enable_disable ("ip4-unicast", "nat-pre-out2in",
sw_if_index, !is_del, 0, 0);
vnet_feature_enable_disable ("ip4-output", "nat44-ed-in2out-output",
sw_if_index, !is_del, 0, 0);
}
else
{
+ int rv =
+ ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, !is_del);
+ if (rv)
+ return rv;
+ rv =
+ ip4_sv_reass_output_enable_disable_with_refcnt (sw_if_index,
+ !is_del);
+ if (rv)
+ return rv;
vnet_feature_enable_disable ("ip4-unicast", "nat44-out2in",
sw_if_index, !is_del, 0, 0);
vnet_feature_enable_disable ("ip4-output", "nat44-in2out-output",
({
vec_add1(sm->workers, i);
sm->per_thread_data[sm->first_worker_index + i].snat_thread_index = j;
+ sm->per_thread_data[sm->first_worker_index + i].thread_index = i;
j++;
}));
/* *INDENT-ON* */
sm->port_per_thread = (0xffff - 1024) / _vec_len (sm->workers);
- sm->num_snat_thread = _vec_len (sm->workers);
return 0;
}
if (!vec_len (sm->outside_fibs))
return;
- /* *INDENT-OFF* */
- pool_foreach (i, sm->interfaces,
+ /* *INDENT-OFF* */
+ pool_foreach (i, sm->interfaces,
+ ({
+ if (i->sw_if_index == sw_if_index)
+ {
+ if (!(nat_interface_is_outside (i)))
+ return;
+ match = 1;
+ }
+ }));
+
+ pool_foreach (i, sm->output_feature_interfaces,
({
if (i->sw_if_index == sw_if_index)
{
u32 if_address_index, u32 is_delete);
static int
-nat_alloc_addr_and_port_default (snat_address_t * addresses,
- u32 fib_index,
- u32 thread_index,
- snat_session_key_t * k,
+nat_alloc_addr_and_port_default (snat_address_t * addresses, u32 fib_index,
+ u32 thread_index, nat_protocol_t proto,
+ ip4_address_t * addr, u16 * port,
u16 port_per_thread, u32 snat_thread_index);
+void
+test_key_calc_split ()
+{
+ ip4_address_t l_addr;
+ l_addr.as_u8[0] = 1;
+ l_addr.as_u8[1] = 1;
+ l_addr.as_u8[2] = 1;
+ l_addr.as_u8[3] = 1;
+ ip4_address_t r_addr;
+ r_addr.as_u8[0] = 2;
+ r_addr.as_u8[1] = 2;
+ r_addr.as_u8[2] = 2;
+ r_addr.as_u8[3] = 2;
+ u16 l_port = 40001;
+ u16 r_port = 40301;
+ u8 proto = 9;
+ u32 fib_index = 9000001;
+ 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);
+ ip4_address_t l_addr2;
+ ip4_address_t r_addr2;
+ clib_memset (&l_addr2, 0, sizeof (l_addr2));
+ clib_memset (&r_addr2, 0, sizeof (r_addr2));
+ u16 l_port2 = 0;
+ u16 r_port2 = 0;
+ u8 proto2 = 0;
+ u32 fib_index2 = 0;
+ split_ed_kv (&kv, &l_addr2, &r_addr2, &proto2, &fib_index2, &l_port2,
+ &r_port2);
+ ASSERT (l_addr.as_u32 == l_addr2.as_u32);
+ ASSERT (r_addr.as_u32 == r_addr2.as_u32);
+ ASSERT (l_port == l_port2);
+ ASSERT (r_port == r_port2);
+ ASSERT (proto == proto2);
+ 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 *
snat_init (vlib_main_t * vm)
{
ip4_add_del_interface_address_callback_t cb4;
vlib_node_t *node;
- sm->vlib_main = vm;
sm->vnet_main = vnet_get_main ();
sm->ip4_main = im;
sm->ip4_lookup_main = lm;
- sm->api_main = &api_main;
+ sm->api_main = vlibapi_get_main ();
sm->first_worker_index = 0;
sm->num_workers = 0;
- sm->num_snat_thread = 1;
sm->workers = 0;
sm->port_per_thread = 0xffff - 1024;
sm->fq_in2out_index = ~0;
sm->fq_in2out_output_index = ~0;
sm->fq_out2in_index = ~0;
- sm->udp_timeout = SNAT_UDP_TIMEOUT;
- sm->tcp_established_timeout = SNAT_TCP_ESTABLISHED_TIMEOUT;
- sm->tcp_transitory_timeout = SNAT_TCP_TRANSITORY_TIMEOUT;
- sm->icmp_timeout = SNAT_ICMP_TIMEOUT;
+
sm->alloc_addr_and_port = nat_alloc_addr_and_port_default;
sm->addr_and_port_alloc_alg = NAT_ADDR_AND_PORT_ALLOC_ALG_DEFAULT;
sm->forwarding_enabled = 0;
sm->log_class = vlib_log_register_class ("nat", 0);
- sm->log_level = SNAT_LOG_NONE;
+ sm->log_level = SNAT_LOG_ERROR;
sm->mss_clamping = 0;
node = vlib_get_node_by_name (vm, (u8 *) "error-drop");
sm->error_node_index = node->index;
+ node = vlib_get_node_by_name (vm, (u8 *) "nat-pre-in2out");
+ sm->pre_in2out_node_index = node->index;
+ node = vlib_get_node_by_name (vm, (u8 *) "nat-pre-out2in");
+ sm->pre_out2in_node_index = node->index;
+
+ node = vlib_get_node_by_name (vm, (u8 *) "nat-pre-in2out");
+ sm->pre_in2out_node_index = node->index;
+
+ node = vlib_get_node_by_name (vm, (u8 *) "nat-pre-out2in");
+ sm->pre_out2in_node_index = node->index;
+
node = vlib_get_node_by_name (vm, (u8 *) "nat44-in2out");
sm->in2out_node_index = node->index;
node = vlib_get_node_by_name (vm, (u8 *) "nat44-in2out-output");
sm->in2out_slowpath_node_index = node->index;
node = vlib_get_node_by_name (vm, (u8 *) "nat44-in2out-output-slowpath");
sm->in2out_slowpath_output_node_index = node->index;
- node = vlib_get_node_by_name (vm, (u8 *) "nat44-in2out-reass");
- sm->in2out_reass_node_index = node->index;
node = vlib_get_node_by_name (vm, (u8 *) "nat44-ed-in2out");
sm->ed_in2out_node_index = node->index;
node = vlib_get_node_by_name (vm, (u8 *) "nat44-ed-in2out-slowpath");
sm->ed_in2out_slowpath_node_index = node->index;
- node = vlib_get_node_by_name (vm, (u8 *) "nat44-ed-in2out-reass");
- sm->ed_in2out_reass_node_index = node->index;
node = vlib_get_node_by_name (vm, (u8 *) "nat44-out2in");
sm->out2in_node_index = node->index;
node = vlib_get_node_by_name (vm, (u8 *) "nat44-out2in-fast");
sm->out2in_fast_node_index = node->index;
- node = vlib_get_node_by_name (vm, (u8 *) "nat44-out2in-reass");
- sm->out2in_reass_node_index = node->index;
node = vlib_get_node_by_name (vm, (u8 *) "nat44-ed-out2in");
sm->ed_out2in_node_index = node->index;
node = vlib_get_node_by_name (vm, (u8 *) "nat44-ed-out2in-slowpath");
sm->ed_out2in_slowpath_node_index = node->index;
- node = vlib_get_node_by_name (vm, (u8 *) "nat44-ed-out2in-reass");
- sm->ed_out2in_reass_node_index = node->index;
node = vlib_get_node_by_name (vm, (u8 *) "nat44-det-in2out");
sm->det_in2out_node_index = node->index;
sm->total_sessions.stat_segment_name = "/nat44/total-sessions";
vlib_validate_simple_counter (&sm->total_sessions, 0);
vlib_zero_simple_counter (&sm->total_sessions, 0);
+ sm->user_limit_reached.name = "user-limit-reached";
+ sm->user_limit_reached.stat_segment_name = "/nat44/user-limit-reached";
+ vlib_validate_simple_counter (&sm->user_limit_reached, 0);
+ vlib_zero_simple_counter (&sm->user_limit_reached, 0);
/* Init IPFIX logging */
snat_ipfix_logging_init (vm);
if (error)
return error;
- dslite_init (vm);
-
nat66_init (vm);
ip4_table_bind_callback_t cbt4 = {
};
vec_add1 (ip4_main.table_bind_callbacks, cbt4);
- /* Init virtual fragmenentation reassembly */
- return nat_reass_init (vm);
+ nat_fib_src_hi = fib_source_allocate ("nat-hi",
+ FIB_SOURCE_PRIORITY_HI,
+ FIB_SOURCE_BH_SIMPLE);
+ nat_fib_src_low = fib_source_allocate ("nat-low",
+ FIB_SOURCE_PRIORITY_LOW,
+ FIB_SOURCE_BH_SIMPLE);
+
+ test_key_calc_split ();
+ return error;
}
VLIB_INIT_FUNCTION (snat_init);
void
snat_free_outside_address_and_port (snat_address_t * addresses,
- u32 thread_index, snat_session_key_t * k)
+ u32 thread_index,
+ ip4_address_t * addr,
+ u16 port, nat_protocol_t protocol)
{
snat_address_t *a;
u32 address_index;
- u16 port_host_byte_order = clib_net_to_host_u16 (k->port);
+ u16 port_host_byte_order = clib_net_to_host_u16 (port);
for (address_index = 0; address_index < vec_len (addresses);
address_index++)
{
- if (addresses[address_index].addr.as_u32 == k->addr.as_u32)
+ if (addresses[address_index].addr.as_u32 == addr->as_u32)
break;
}
a = addresses + address_index;
- switch (k->protocol)
+ switch (protocol)
{
#define _(N, i, n, s) \
- case SNAT_PROTOCOL_##N: \
- ASSERT (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, \
- port_host_byte_order) == 1); \
- clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, \
- port_host_byte_order, 0); \
+ 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_snat_protocol
+ foreach_nat_protocol
#undef _
default:
nat_elog_info ("unknown protocol");
static int
nat_set_outside_address_and_port (snat_address_t * addresses,
- u32 thread_index, snat_session_key_t * k)
+ u32 thread_index, ip4_address_t addr,
+ u16 port, nat_protocol_t protocol)
{
snat_address_t *a = 0;
u32 address_index;
- u16 port_host_byte_order = clib_net_to_host_u16 (k->port);
+ u16 port_host_byte_order = clib_net_to_host_u16 (port);
for (address_index = 0; address_index < vec_len (addresses);
address_index++)
{
- if (addresses[address_index].addr.as_u32 != k->addr.as_u32)
+ if (addresses[address_index].addr.as_u32 != addr.as_u32)
continue;
a = addresses + address_index;
- switch (k->protocol)
+ switch (protocol)
{
#define _(N, j, n, s) \
- case SNAT_PROTOCOL_##N: \
- if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, port_host_byte_order)) \
+ case NAT_PROTOCOL_##N: \
+ if (a->busy_##n##_port_refcounts[port_host_byte_order]) \
return VNET_API_ERROR_INSTANCE_IN_USE; \
- clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, port_host_byte_order, 1); \
+ ++a->busy_##n##_port_refcounts[port_host_byte_order]; \
a->busy_##n##_ports_per_thread[thread_index]++; \
a->busy_##n##_ports++; \
return 0;
- foreach_snat_protocol
+ foreach_nat_protocol
#undef _
default:
nat_elog_info ("unknown protocol");
int
snat_static_mapping_match (snat_main_t * sm,
- snat_session_key_t match,
- snat_session_key_t * mapping,
+ ip4_address_t match_addr,
+ u16 match_port,
+ u32 match_fib_index,
+ nat_protocol_t match_protocol,
+ ip4_address_t * mapping_addr,
+ u16 * mapping_port,
+ u32 * mapping_fib_index,
u8 by_external,
u8 * is_addr_only,
twice_nat_type_t * twice_nat,
{
clib_bihash_kv_8_8_t kv, value;
snat_static_mapping_t *m;
- snat_session_key_t m_key;
clib_bihash_8_8_t *mapping_hash = &sm->static_mapping_by_local;
u32 rand, lo = 0, hi, mid, *tmp = 0, i;
u8 backend_index;
nat44_lb_addr_port_t *local;
- m_key.fib_index = match.fib_index;
if (by_external)
{
mapping_hash = &sm->static_mapping_by_external;
- m_key.fib_index = 0;
- }
-
- m_key.addr = match.addr;
- m_key.port = clib_net_to_host_u16 (match.port);
- m_key.protocol = match.protocol;
-
- kv.key = m_key.as_u64;
+ 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;
+ }
- if (clib_bihash_search_8_8 (mapping_hash, &kv, &value))
+ }
+ else
{
- /* Try address only mapping */
- m_key.port = 0;
- m_key.protocol = 0;
- kv.key = m_key.as_u64;
+ init_nat_k (&kv, match_addr, match_port, match_fib_index,
+ match_protocol);
if (clib_bihash_search_8_8 (mapping_hash, &kv, &value))
- return 1;
+ {
+ /* 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;
+ }
+
}
m = pool_elt_at_index (sm->static_mappings, value.value);
if (PREDICT_FALSE (lb != 0))
*lb = m->affinity ? AFFINITY_LB_NAT : LB_NAT;
if (m->affinity && !nat_affinity_find_and_lock (ext_host_addr[0],
- match.addr,
- match.protocol,
- match.port,
+ match_addr,
+ match_protocol,
+ match_port,
&backend_index))
{
local = pool_elt_at_index (m->locals, backend_index);
- mapping->addr = local->addr;
- mapping->port = clib_host_to_net_u16 (local->port);
- mapping->fib_index = local->fib_index;
+ *mapping_addr = local->addr;
+ *mapping_port = local->port;
+ *mapping_fib_index = local->fib_index;
goto end;
}
// pick locals matching this worker
.src_address = local->addr,
};
- if (sm->worker_in2out_cb (&ip, m->fib_index) ==
+ if (sm->worker_in2out_cb (&ip, m->fib_index, 0) ==
thread_index)
{
vec_add1 (tmp, i);
local = pool_elt_at_index (m->locals, tmp[lo]);
if (!(local->prefix >= rand))
return 1;
- mapping->addr = local->addr;
- mapping->port = clib_host_to_net_u16 (local->port);
- mapping->fib_index = local->fib_index;
+ *mapping_addr = local->addr;
+ *mapping_port = local->port;
+ *mapping_fib_index = local->fib_index;
if (m->affinity)
{
- if (nat_affinity_create_and_lock (ext_host_addr[0], match.addr,
- match.protocol, match.port,
+ if (nat_affinity_create_and_lock (ext_host_addr[0], match_addr,
+ match_protocol, match_port,
tmp[lo], m->affinity,
m->affinity_per_service_list_head_index))
nat_elog_info ("create affinity record failed");
{
if (PREDICT_FALSE (lb != 0))
*lb = NO_LB_NAT;
- mapping->fib_index = m->fib_index;
- mapping->addr = m->local_addr;
+ *mapping_fib_index = m->fib_index;
+ *mapping_addr = m->local_addr;
/* Address only mapping doesn't change port */
- mapping->port = is_addr_only_static_mapping (m) ? match.port
- : clib_host_to_net_u16 (m->local_port);
+ *mapping_port = is_addr_only_static_mapping (m) ? match_port
+ : m->local_port;
}
- mapping->protocol = m->proto;
}
else
{
- mapping->addr = m->external_addr;
+ *mapping_addr = m->external_addr;
/* Address only mapping doesn't change port */
- mapping->port = is_addr_only_static_mapping (m) ? match.port
- : clib_host_to_net_u16 (m->external_port);
- mapping->fib_index = sm->outside_fib_index;
+ *mapping_port = is_addr_only_static_mapping (m) ? match_port
+ : m->external_port;
+ *mapping_fib_index = sm->outside_fib_index;
}
end:
return 0;
}
-static_always_inline u16
-snat_random_port (u16 min, u16 max)
-{
- snat_main_t *sm = &snat_main;
- return min + random_u32 (&sm->random_seed) /
- (random_u32_max () / (max - min + 1) + 1);
-}
-
int
snat_alloc_outside_address_and_port (snat_address_t * addresses,
u32 fib_index,
u32 thread_index,
- snat_session_key_t * k,
+ nat_protocol_t proto,
+ ip4_address_t * addr,
+ u16 * port,
u16 port_per_thread,
u32 snat_thread_index)
{
snat_main_t *sm = &snat_main;
- return sm->alloc_addr_and_port (addresses, fib_index, thread_index, k,
- port_per_thread, snat_thread_index);
+ return sm->alloc_addr_and_port (addresses, fib_index, thread_index, proto,
+ addr, port, port_per_thread,
+ snat_thread_index);
}
static int
nat_alloc_addr_and_port_default (snat_address_t * addresses,
u32 fib_index,
u32 thread_index,
- snat_session_key_t * k,
+ nat_protocol_t proto,
+ ip4_address_t * addr,
+ u16 * port,
u16 port_per_thread, u32 snat_thread_index)
{
int i;
for (i = 0; i < vec_len (addresses); i++)
{
a = addresses + i;
- switch (k->protocol)
+ switch (proto)
{
#define _(N, j, n, s) \
- case SNAT_PROTOCOL_##N: \
+ case NAT_PROTOCOL_##N: \
if (a->busy_##n##_ports_per_thread[thread_index] < port_per_thread) \
{ \
if (a->fib_index == fib_index) \
portnum = (port_per_thread * \
snat_thread_index) + \
snat_random_port(1, port_per_thread) + 1024; \
- if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, portnum)) \
+ if (a->busy_##n##_port_refcounts[portnum]) \
continue; \
- clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, portnum, 1); \
+ --a->busy_##n##_port_refcounts[portnum]; \
a->busy_##n##_ports_per_thread[thread_index]++; \
a->busy_##n##_ports++; \
- k->addr = a->addr; \
- k->port = clib_host_to_net_u16(portnum); \
+ *addr = a->addr; \
+ *port = clib_host_to_net_u16(portnum); \
return 0; \
} \
} \
} \
} \
break;
- foreach_snat_protocol
+ foreach_nat_protocol
#undef _
default:
nat_elog_info ("unknown protocol");
if (ga)
{
a = ga;
- switch (k->protocol)
+ switch (proto)
{
#define _(N, j, n, s) \
- case SNAT_PROTOCOL_##N: \
+ case NAT_PROTOCOL_##N: \
while (1) \
{ \
portnum = (port_per_thread * \
snat_thread_index) + \
snat_random_port(1, port_per_thread) + 1024; \
- if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, portnum)) \
+ if (a->busy_##n##_port_refcounts[portnum]) \
continue; \
- clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, portnum, 1); \
+ ++a->busy_##n##_port_refcounts[portnum]; \
a->busy_##n##_ports_per_thread[thread_index]++; \
a->busy_##n##_ports++; \
- k->addr = a->addr; \
- k->port = clib_host_to_net_u16(portnum); \
+ *addr = a->addr; \
+ *port = clib_host_to_net_u16(portnum); \
return 0; \
}
break;
- foreach_snat_protocol
+ foreach_nat_protocol
#undef _
default:
nat_elog_info ("unknown protocol");
}
static int
-nat_alloc_addr_and_port_mape (snat_address_t * addresses,
- u32 fib_index,
- u32 thread_index,
- snat_session_key_t * k,
+nat_alloc_addr_and_port_mape (snat_address_t * addresses, u32 fib_index,
+ u32 thread_index, nat_protocol_t proto,
+ ip4_address_t * addr, u16 * port,
u16 port_per_thread, u32 snat_thread_index)
{
snat_main_t *sm = &snat_main;
if (!vec_len (addresses))
goto exhausted;
- switch (k->protocol)
+ switch (proto)
{
#define _(N, i, n, s) \
- case SNAT_PROTOCOL_##N: \
+ case NAT_PROTOCOL_##N: \
if (a->busy_##n##_ports < ports) \
{ \
while (1) \
A = snat_random_port(1, pow2_mask(sm->psid_offset)); \
j = snat_random_port(0, pow2_mask(m)); \
portnum = A | (sm->psid << sm->psid_offset) | (j << (16 - m)); \
- if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, portnum)) \
+ if (a->busy_##n##_port_refcounts[portnum]) \
continue; \
- clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, portnum, 1); \
+ ++a->busy_##n##_port_refcounts[portnum]; \
a->busy_##n##_ports++; \
- k->addr = a->addr; \
- k->port = clib_host_to_net_u16 (portnum); \
+ *addr = a->addr; \
+ *port = clib_host_to_net_u16 (portnum); \
return 0; \
} \
} \
break;
- foreach_snat_protocol
+ foreach_nat_protocol
#undef _
default:
nat_elog_info ("unknown protocol");
}
static int
-nat_alloc_addr_and_port_range (snat_address_t * addresses,
- u32 fib_index,
- u32 thread_index,
- snat_session_key_t * k,
+nat_alloc_addr_and_port_range (snat_address_t * addresses, u32 fib_index,
+ u32 thread_index, nat_protocol_t proto,
+ ip4_address_t * addr, u16 * port,
u16 port_per_thread, u32 snat_thread_index)
{
snat_main_t *sm = &snat_main;
if (!vec_len (addresses))
goto exhausted;
- switch (k->protocol)
+ switch (proto)
{
#define _(N, i, n, s) \
- case SNAT_PROTOCOL_##N: \
+ case NAT_PROTOCOL_##N: \
if (a->busy_##n##_ports < ports) \
{ \
while (1) \
{ \
portnum = snat_random_port(sm->start_port, sm->end_port); \
- if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, portnum)) \
+ if (a->busy_##n##_port_refcounts[portnum]) \
continue; \
- clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, portnum, 1); \
+ ++a->busy_##n##_port_refcounts[portnum]; \
a->busy_##n##_ports++; \
- k->addr = a->addr; \
- k->port = clib_host_to_net_u16 (portnum); \
+ *addr = a->addr; \
+ *port = clib_host_to_net_u16 (portnum); \
return 0; \
} \
} \
break;
- foreach_snat_protocol
+ foreach_nat_protocol
#undef _
default:
nat_elog_info ("unknown protocol");
if (is_add)
{
nat_dpo_create (DPO_PROTO_IP4, 0, &dpo_v4);
- fib_table_entry_special_dpo_add (0, &pfx, FIB_SOURCE_PLUGIN_HI,
+ fib_table_entry_special_dpo_add (0, &pfx, nat_fib_src_hi,
FIB_ENTRY_FLAG_EXCLUSIVE, &dpo_v4);
dpo_reset (&dpo_v4);
}
else
{
- fib_table_entry_special_remove (0, &pfx, FIB_SOURCE_PLUGIN_HI);
+ fib_table_entry_special_remove (0, &pfx, nat_fib_src_hi);
}
}
format_session_kvp (u8 * s, va_list * args)
{
clib_bihash_kv_8_8_t *v = va_arg (*args, clib_bihash_kv_8_8_t *);
- snat_session_key_t k;
-
- k.as_u64 = v->key;
- s = format (s, "%U session-index %llu", format_snat_key, &k, v->value);
+ s = format (s, "%U session-index %llu", format_snat_key, v->key, v->value);
return s;
}
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 *);
- snat_session_key_t k;
-
- k.as_u64 = v->key;
s = format (s, "%U static-mapping-index %llu",
- format_static_mapping_key, &k, v->value);
+ format_snat_key, v->key, v->value);
return s;
}
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 *);
- nat_ed_ses_key_t k;
- k.as_u64[0] = v->key[0];
- k.as_u64[1] = v->key[1];
+ u8 proto;
+ u16 r_port, l_port;
+ ip4_address_t l_addr, r_addr;
+ u32 fib_index;
+ split_ed_kv (v, &l_addr, &r_addr, &proto, &fib_index, &l_port, &r_port);
s =
- format (s, "local %U:%d remote %U:%d proto %U fib %d session-index %llu",
- format_ip4_address, &k.l_addr, clib_net_to_host_u16 (k.l_port),
- format_ip4_address, &k.r_addr, clib_net_to_host_u16 (k.r_port),
- format_ip_protocol, k.proto, k.fib_index, v->value);
+ format (s,
+ "local %U:%d remote %U:%d proto %U fib %d thread-index %u session-index %u",
+ format_ip4_address, &l_addr, clib_net_to_host_u16 (l_port),
+ format_ip4_address, &r_addr, clib_net_to_host_u16 (r_port),
+ format_ip_protocol, proto, fib_index,
+ ed_value_get_session_index (v), ed_value_get_thread_index (v));
return s;
}
static u32
-snat_get_worker_in2out_cb (ip4_header_t * ip0, u32 rx_fib_index0)
+snat_get_worker_in2out_cb (ip4_header_t * ip0, u32 rx_fib_index0,
+ u8 is_output)
{
snat_main_t *sm = &snat_main;
u32 next_worker_index = 0;
}
static u32
-snat_get_worker_out2in_cb (ip4_header_t * ip0, u32 rx_fib_index0)
+snat_get_worker_out2in_cb (vlib_buffer_t * b, ip4_header_t * ip0,
+ u32 rx_fib_index0, u8 is_output)
{
snat_main_t *sm = &snat_main;
udp_header_t *udp;
u16 port;
- snat_session_key_t m_key;
clib_bihash_kv_8_8_t kv, value;
snat_static_mapping_t *m;
u32 proto;
/* first try static mappings without port */
if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
{
- m_key.addr = ip0->dst_address;
- m_key.port = 0;
- m_key.protocol = 0;
- m_key.fib_index = rx_fib_index0;
- kv.key = m_key.as_u64;
+ init_nat_k (&kv, ip0->dst_address, 0, rx_fib_index0, 0);
if (!clib_bihash_search_8_8
(&sm->static_mapping_by_external, &kv, &value))
{
}
}
- proto = ip_proto_to_snat_proto (ip0->protocol);
+ proto = ip_proto_to_nat_proto (ip0->protocol);
udp = ip4_next_header (ip0);
port = udp->dst_port;
- if (PREDICT_FALSE (ip4_is_fragment (ip0)))
- {
- if (PREDICT_FALSE (nat_reass_is_drop_frag (0)))
- return vlib_get_thread_index ();
-
- nat_reass_ip4_t *reass;
- reass = nat_ip4_reass_find (ip0->src_address, ip0->dst_address,
- ip0->fragment_id, ip0->protocol);
-
- if (reass && (reass->thread_index != (u32) ~ 0))
- return reass->thread_index;
-
- if (ip4_is_first_fragment (ip0))
- {
- reass =
- nat_ip4_reass_create (ip0->src_address, ip0->dst_address,
- ip0->fragment_id, ip0->protocol);
- if (!reass)
- goto no_reass;
-
- if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
- {
- m_key.addr = ip0->dst_address;
- m_key.port = clib_net_to_host_u16 (port);
- m_key.protocol = proto;
- m_key.fib_index = rx_fib_index0;
- kv.key = m_key.as_u64;
- if (!clib_bihash_search_8_8
- (&sm->static_mapping_by_external, &kv, &value))
- {
- m = pool_elt_at_index (sm->static_mappings, value.value);
- reass->thread_index = m->workers[0];
- return reass->thread_index;
- }
- }
- reass->thread_index = sm->first_worker_index;
- reass->thread_index +=
- sm->workers[(clib_net_to_host_u16 (port) - 1024) /
- sm->port_per_thread];
- return reass->thread_index;
- }
- else
- return vlib_get_thread_index ();
- }
-
-no_reass:
/* unknown protocol */
- if (PREDICT_FALSE (proto == ~0))
+ if (PREDICT_FALSE (proto == NAT_PROTOCOL_OTHER))
{
/* use current thread */
return vlib_get_thread_index ();
{
icmp46_header_t *icmp = (icmp46_header_t *) udp;
icmp_echo_header_t *echo = (icmp_echo_header_t *) (icmp + 1);
- if (!icmp_is_error_message (icmp))
- port = echo->identifier;
+ if (!icmp_type_is_error_message
+ (vnet_buffer (b)->ip.reass.icmp_type_or_tcp_flags))
+ port = vnet_buffer (b)->ip.reass.l4_src_port;
else
{
+ /* 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_snat_proto (inner_ip->protocol);
+ proto = ip_proto_to_nat_proto (inner_ip->protocol);
void *l4_header = ip4_next_header (inner_ip);
switch (proto)
{
- case SNAT_PROTOCOL_ICMP:
+ case NAT_PROTOCOL_ICMP:
icmp = (icmp46_header_t *) l4_header;
echo = (icmp_echo_header_t *) (icmp + 1);
port = echo->identifier;
break;
- case SNAT_PROTOCOL_UDP:
- case SNAT_PROTOCOL_TCP:
+ case NAT_PROTOCOL_UDP:
+ case NAT_PROTOCOL_TCP:
port = ((tcp_udp_header_t *) l4_header)->src_port;
break;
default:
/* try static mappings with port */
if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
{
- m_key.addr = ip0->dst_address;
- m_key.port = clib_net_to_host_u16 (port);
- m_key.protocol = proto;
- m_key.fib_index = rx_fib_index0;
- kv.key = m_key.as_u64;
+ init_nat_k (&kv, ip0->dst_address, port, rx_fib_index0, proto);
if (!clib_bihash_search_8_8
(&sm->static_mapping_by_external, &kv, &value))
{
}
static u32
-nat44_ed_get_worker_out2in_cb (ip4_header_t * ip, u32 rx_fib_index)
+nat44_ed_get_worker_in2out_cb (ip4_header_t * ip, u32 rx_fib_index,
+ u8 is_output)
+{
+ snat_main_t *sm = &snat_main;
+ u32 next_worker_index = sm->first_worker_index;
+ u32 hash;
+
+ clib_bihash_kv_16_8_t kv16, value16;
+ snat_main_per_thread_data_t *tsm;
+ udp_header_t *udp;
+
+ if (PREDICT_FALSE (is_output))
+ {
+ u32 fib_index = sm->outside_fib_index;
+ nat_outside_fib_t *outside_fib;
+ fib_node_index_t fei = FIB_NODE_INDEX_INVALID;
+ fib_prefix_t pfx = {
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_len = 32,
+ .fp_addr = {
+ .ip4.as_u32 = ip->dst_address.as_u32,
+ }
+ ,
+ };
+
+ udp = ip4_next_header (ip);
+
+ switch (vec_len (sm->outside_fibs))
+ {
+ case 0:
+ fib_index = sm->outside_fib_index;
+ break;
+ case 1:
+ fib_index = sm->outside_fibs[0].fib_index;
+ break;
+ default:
+ /* *INDENT-OFF* */
+ vec_foreach (outside_fib, sm->outside_fibs)
+ {
+ fei = fib_table_lookup (outside_fib->fib_index, &pfx);
+ if (FIB_NODE_INDEX_INVALID != fei)
+ {
+ if (fib_entry_get_resolving_interface (fei) != ~0)
+ {
+ fib_index = outside_fib->fib_index;
+ break;
+ }
+ }
+ }
+ /* *INDENT-ON* */
+ break;
+ }
+
+ init_ed_k (&kv16, ip->src_address, udp->src_port, ip->dst_address,
+ udp->dst_port, fib_index, ip->protocol);
+
+ if (PREDICT_TRUE (!clib_bihash_search_16_8 (&sm->out2in_ed,
+ &kv16, &value16)))
+ {
+ tsm =
+ vec_elt_at_index (sm->per_thread_data,
+ ed_value_get_thread_index (&value16));
+ next_worker_index += tsm->thread_index;
+
+ nat_elog_debug_handoff ("HANDOFF IN2OUT-OUTPUT-FEATURE (session)",
+ next_worker_index, fib_index,
+ clib_net_to_host_u32 (ip->
+ src_address.as_u32),
+ clib_net_to_host_u32 (ip->
+ dst_address.as_u32));
+
+ return next_worker_index;
+ }
+ }
+
+ hash = ip->src_address.as_u32 + (ip->src_address.as_u32 >> 8) +
+ (ip->src_address.as_u32 >> 16) + (ip->src_address.as_u32 >> 24);
+
+ if (PREDICT_TRUE (is_pow2 (_vec_len (sm->workers))))
+ next_worker_index += sm->workers[hash & (_vec_len (sm->workers) - 1)];
+ else
+ next_worker_index += sm->workers[hash % _vec_len (sm->workers)];
+
+ if (PREDICT_TRUE (!is_output))
+ {
+ nat_elog_debug_handoff ("HANDOFF IN2OUT",
+ next_worker_index, rx_fib_index,
+ clib_net_to_host_u32 (ip->src_address.as_u32),
+ clib_net_to_host_u32 (ip->dst_address.as_u32));
+ }
+ else
+ {
+ nat_elog_debug_handoff ("HANDOFF IN2OUT-OUTPUT-FEATURE",
+ next_worker_index, rx_fib_index,
+ clib_net_to_host_u32 (ip->src_address.as_u32),
+ clib_net_to_host_u32 (ip->dst_address.as_u32));
+ }
+
+ return next_worker_index;
+}
+
+static u32
+nat44_ed_get_worker_out2in_cb (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;
+ snat_main_per_thread_data_t *tsm;
+
u32 proto, next_worker_index = 0;
udp_header_t *udp;
u16 port;
snat_static_mapping_t *m;
u32 hash;
+ proto = ip_proto_to_nat_proto (ip->protocol);
+
+ if (PREDICT_TRUE (proto == NAT_PROTOCOL_UDP || proto == NAT_PROTOCOL_TCP))
+ {
+ udp = ip4_next_header (ip);
+
+ init_ed_k (&kv16, ip->dst_address, udp->dst_port, ip->src_address,
+ udp->src_port, rx_fib_index, ip->protocol);
+
+ if (PREDICT_TRUE (!clib_bihash_search_16_8 (&sm->out2in_ed,
+ &kv16, &value16)))
+ {
+ tsm =
+ vec_elt_at_index (sm->per_thread_data,
+ ed_value_get_thread_index (&value16));
+ vnet_buffer2 (b)->nat.ed_out2in_nat_session_index =
+ ed_value_get_session_index (&value16);
+ next_worker_index = sm->first_worker_index + tsm->thread_index;
+ nat_elog_debug_handoff ("HANDOFF OUT2IN (session)",
+ next_worker_index, rx_fib_index,
+ clib_net_to_host_u32 (ip->
+ src_address.as_u32),
+ clib_net_to_host_u32 (ip->
+ dst_address.as_u32));
+ return next_worker_index;
+ }
+ }
+ else if (proto == NAT_PROTOCOL_ICMP)
+ {
+ if (!get_icmp_o2i_ed_key (b, ip, rx_fib_index, ~0, ~0, 0, 0, 0, &kv16))
+ {
+ if (PREDICT_TRUE (!clib_bihash_search_16_8 (&sm->out2in_ed,
+ &kv16, &value16)))
+ {
+ tsm =
+ vec_elt_at_index (sm->per_thread_data,
+ ed_value_get_thread_index (&value16));
+ next_worker_index = sm->first_worker_index + tsm->thread_index;
+ nat_elog_debug_handoff ("HANDOFF OUT2IN (session)",
+ next_worker_index, rx_fib_index,
+ clib_net_to_host_u32 (ip->
+ src_address.as_u32),
+ clib_net_to_host_u32 (ip->
+ dst_address.as_u32));
+ return next_worker_index;
+ }
+ }
+ }
+
/* first try static mappings without port */
if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
{
- make_sm_kv (&kv, &ip->dst_address, 0, 0, 0);
+ init_nat_k (&kv, ip->dst_address, 0, 0, 0);
if (!clib_bihash_search_8_8
(&sm->static_mapping_by_external, &kv, &value))
{
m = pool_elt_at_index (sm->static_mappings, value.value);
- return m->workers[0];
+ next_worker_index = m->workers[0];
+ goto done;
}
}
- proto = ip_proto_to_snat_proto (ip->protocol);
-
/* unknown protocol */
- if (PREDICT_FALSE (proto == ~0))
+ if (PREDICT_FALSE (proto == NAT_PROTOCOL_OTHER))
{
/* use current thread */
- return vlib_get_thread_index ();
+ next_worker_index = vlib_get_thread_index ();
+ goto done;
}
udp = ip4_next_header (ip);
{
icmp46_header_t *icmp = (icmp46_header_t *) udp;
icmp_echo_header_t *echo = (icmp_echo_header_t *) (icmp + 1);
- if (!icmp_is_error_message (icmp))
- port = echo->identifier;
+ if (!icmp_type_is_error_message
+ (vnet_buffer (b)->ip.reass.icmp_type_or_tcp_flags))
+ port = vnet_buffer (b)->ip.reass.l4_src_port;
else
{
+ /* 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_snat_proto (inner_ip->protocol);
+ proto = ip_proto_to_nat_proto (inner_ip->protocol);
void *l4_header = ip4_next_header (inner_ip);
switch (proto)
{
- case SNAT_PROTOCOL_ICMP:
+ case NAT_PROTOCOL_ICMP:
icmp = (icmp46_header_t *) l4_header;
echo = (icmp_echo_header_t *) (icmp + 1);
port = echo->identifier;
break;
- case SNAT_PROTOCOL_UDP:
- case SNAT_PROTOCOL_TCP:
+ case NAT_PROTOCOL_UDP:
+ case NAT_PROTOCOL_TCP:
port = ((tcp_udp_header_t *) l4_header)->src_port;
break;
default:
- return vlib_get_thread_index ();
+ next_worker_index = vlib_get_thread_index ();
+ goto done;
}
}
}
/* try static mappings with port */
if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
{
- make_sm_kv (&kv, &ip->dst_address, proto, 0,
- clib_net_to_host_u16 (port));
+ init_nat_k (&kv, ip->dst_address, proto, 0, port);
if (!clib_bihash_search_8_8
(&sm->static_mapping_by_external, &kv, &value))
{
m = pool_elt_at_index (sm->static_mappings, value.value);
if (!is_lb_static_mapping (m))
- return m->workers[0];
+ {
+ next_worker_index = m->workers[0];
+ goto done;
+ }
hash = ip->src_address.as_u32 + (ip->src_address.as_u32 >> 8) +
(ip->src_address.as_u32 >> 16) + (ip->src_address.as_u32 >> 24);
if (PREDICT_TRUE (is_pow2 (_vec_len (m->workers))))
- return m->workers[hash & (_vec_len (m->workers) - 1)];
+ next_worker_index =
+ m->workers[hash & (_vec_len (m->workers) - 1)];
else
- return m->workers[hash % _vec_len (m->workers)];
+ next_worker_index = m->workers[hash % _vec_len (m->workers)];
+ goto done;
}
}
next_worker_index +=
sm->workers[(clib_net_to_host_u16 (port) - 1024) / sm->port_per_thread];
+done:
+ nat_elog_debug_handoff ("HANDOFF OUT2IN", next_worker_index, rx_fib_index,
+ clib_net_to_host_u32 (ip->src_address.as_u32),
+ clib_net_to_host_u32 (ip->dst_address.as_u32));
return next_worker_index;
}
u32 fib_index, u16 flags, u32 thread_index)
{
snat_main_t *sm = &snat_main;
- snat_session_key_t key;
+ snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
snat_user_t *u;
snat_session_t *s;
clib_bihash_kv_8_8_t kv;
- f64 now = vlib_time_now (sm->vlib_main);
+ vlib_main_t *vm = vlib_get_main ();
+ f64 now = vlib_time_now (vm);
nat_outside_fib_t *outside_fib;
fib_node_index_t fei = FIB_NODE_INDEX_INVALID;
- snat_main_per_thread_data_t *tsm;
fib_prefix_t pfx = {
.fp_proto = FIB_PROTOCOL_IP4,
.fp_len = 32,
},
};
- tsm = vec_elt_at_index (sm->per_thread_data, thread_index);
-
- key.addr.as_u32 = out_addr->as_u32;
- key.port = out_port;
- key.protocol = proto;
-
if (!(flags & SNAT_SESSION_FLAG_STATIC_MAPPING))
{
if (nat_set_outside_address_and_port
- (sm->addresses, thread_index, &key))
+ (sm->addresses, thread_index, *out_addr, out_port, proto))
return;
}
if (!s)
return;
+ if (sm->endpoint_dependent)
+ {
+ nat_ed_lru_insert (tsm, s, now, nat_proto_to_ip_proto (proto));
+ }
+
+ s->out2in.addr.as_u32 = out_addr->as_u32;
+ s->out2in.port = out_port;
+ s->nat_proto = proto;
s->last_heard = now;
s->flags = flags;
s->ext_host_addr.as_u32 = eh_addr->as_u32;
switch (vec_len (sm->outside_fibs))
{
case 0:
- key.fib_index = sm->outside_fib_index;
+ s->out2in.fib_index = sm->outside_fib_index;
break;
case 1:
- key.fib_index = sm->outside_fibs[0].fib_index;
+ s->out2in.fib_index = sm->outside_fibs[0].fib_index;
break;
default:
/* *INDENT-OFF* */
{
if (fib_entry_get_resolving_interface (fei) != ~0)
{
- key.fib_index = outside_fib->fib_index;
+ s->out2in.fib_index = outside_fib->fib_index;
break;
}
}
/* *INDENT-ON* */
break;
}
- s->out2in = key;
- kv.key = key.as_u64;
- kv.value = s - tsm->sessions;
+ init_nat_o2i_kv (&kv, s, s - tsm->sessions);
if (clib_bihash_add_del_8_8 (&tsm->out2in, &kv, 1))
nat_elog_warn ("out2in key add failed");
- key.addr.as_u32 = in_addr->as_u32;
- key.port = in_port;
- key.fib_index = fib_index;
- s->in2out = key;
- kv.key = key.as_u64;
+ s->in2out.addr.as_u32 = in_addr->as_u32;
+ s->in2out.port = in_port;
+ s->in2out.fib_index = fib_index;
+ init_nat_i2o_kv (&kv, s, s - tsm->sessions);
if (clib_bihash_add_del_8_8 (&tsm->in2out, &kv, 1))
nat_elog_warn ("in2out key add failed");
}
u32 ti)
{
snat_main_t *sm = &snat_main;
- snat_session_key_t key;
clib_bihash_kv_8_8_t kv, value;
u32 thread_index;
snat_session_t *s;
thread_index = sm->num_workers;
tsm = vec_elt_at_index (sm->per_thread_data, thread_index);
- key.addr.as_u32 = out_addr->as_u32;
- key.port = out_port;
- key.protocol = proto;
- key.fib_index = fib_index;
- kv.key = key.as_u64;
+ init_nat_k (&kv, *out_addr, out_port, fib_index, proto);
if (clib_bihash_search_8_8 (&tsm->out2in, &kv, &value))
return;
u32 total_pkts, u64 total_bytes, u32 thread_index)
{
snat_main_t *sm = &snat_main;
- snat_session_key_t key;
clib_bihash_kv_8_8_t kv, value;
snat_session_t *s;
snat_main_per_thread_data_t *tsm;
tsm = vec_elt_at_index (sm->per_thread_data, thread_index);
- key.addr.as_u32 = out_addr->as_u32;
- key.port = out_port;
- key.protocol = proto;
- key.fib_index = fib_index;
- kv.key = key.as_u64;
+ init_nat_k (&kv, *out_addr, out_port, fib_index, proto);
if (clib_bihash_search_8_8 (&tsm->out2in, &kv, &value))
return;
u32 fib_index, u16 flags, u32 thread_index)
{
snat_main_t *sm = &snat_main;
- snat_session_key_t key;
- snat_user_t *u;
+ snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
snat_session_t *s;
clib_bihash_kv_16_8_t kv;
- f64 now = vlib_time_now (sm->vlib_main);
+ vlib_main_t *vm = vlib_get_main ();
+ f64 now = vlib_time_now (vm);
nat_outside_fib_t *outside_fib;
fib_node_index_t fei = FIB_NODE_INDEX_INVALID;
- snat_main_per_thread_data_t *tsm;
fib_prefix_t pfx = {
.fp_proto = FIB_PROTOCOL_IP4,
.fp_len = 32,
},
};
- tsm = vec_elt_at_index (sm->per_thread_data, thread_index);
-
- key.addr.as_u32 = out_addr->as_u32;
- key.port = out_port;
- key.protocol = proto;
if (!(flags & SNAT_SESSION_FLAG_STATIC_MAPPING))
{
if (nat_set_outside_address_and_port
- (sm->addresses, thread_index, &key))
+ (sm->addresses, thread_index, *out_addr, out_port, proto))
return;
}
- key.addr.as_u32 = ehn_addr->as_u32;
- key.port = ehn_port;
if (flags & SNAT_SESSION_FLAG_TWICE_NAT)
{
if (nat_set_outside_address_and_port
- (sm->twice_nat_addresses, thread_index, &key))
+ (sm->addresses, thread_index, *ehn_addr, ehn_port, proto))
return;
}
- u = nat_user_get_or_create (sm, in_addr, fib_index, thread_index);
- if (!u)
- return;
-
- s = nat_ed_session_alloc (sm, u, thread_index, now);
+ s = nat_ed_session_alloc (sm, thread_index, now, proto);
if (!s)
return;
s->ext_host_nat_addr.as_u32 = ehn_addr->as_u32;
s->ext_host_nat_port = ehn_port;
}
- user_session_increment (sm, u, snat_is_session_static (s));
switch (vec_len (sm->outside_fibs))
{
case 0:
- key.fib_index = sm->outside_fib_index;
+ s->out2in.fib_index = sm->outside_fib_index;
break;
case 1:
- key.fib_index = sm->outside_fibs[0].fib_index;
+ s->out2in.fib_index = sm->outside_fibs[0].fib_index;
break;
default:
/* *INDENT-OFF* */
{
if (fib_entry_get_resolving_interface (fei) != ~0)
{
- key.fib_index = outside_fib->fib_index;
+ s->out2in.fib_index = outside_fib->fib_index;
break;
}
}
/* *INDENT-ON* */
break;
}
- key.addr.as_u32 = out_addr->as_u32;
- key.port = out_port;
- s->out2in = key;
- kv.value = s - tsm->sessions;
+ s->nat_proto = proto;
+ s->out2in.addr.as_u32 = out_addr->as_u32;
+ s->out2in.port = out_port;
- key.addr.as_u32 = in_addr->as_u32;
- key.port = in_port;
- key.fib_index = fib_index;
- s->in2out = key;
+ s->in2out.addr.as_u32 = in_addr->as_u32;
+ s->in2out.port = in_port;
+ s->in2out.fib_index = fib_index;
- make_ed_kv (&kv, in_addr, &s->ext_host_nat_addr,
- snat_proto_to_ip_proto (proto), fib_index, in_port,
- s->ext_host_nat_port);
+ init_ed_kv (&kv, *in_addr, in_port, s->ext_host_nat_addr,
+ s->ext_host_nat_port, fib_index, nat_proto_to_ip_proto (proto),
+ thread_index, s - tsm->sessions);
if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &kv, 1))
nat_elog_warn ("in2out key add failed");
- make_ed_kv (&kv, out_addr, eh_addr, snat_proto_to_ip_proto (proto),
- s->out2in.fib_index, out_port, eh_port);
- if (clib_bihash_add_del_16_8 (&tsm->out2in_ed, &kv, 1))
+ init_ed_kv (&kv, *out_addr, out_port, *eh_addr, eh_port,
+ s->out2in.fib_index, nat_proto_to_ip_proto (proto),
+ thread_index, s - tsm->sessions);
+ if (clib_bihash_add_del_16_8 (&sm->out2in_ed, &kv, 1))
nat_elog_warn ("out2in key add failed");
}
u32 fib_index, u32 ti)
{
snat_main_t *sm = &snat_main;
- nat_ed_ses_key_t key;
clib_bihash_kv_16_8_t kv, value;
u32 thread_index;
snat_session_t *s;
thread_index = sm->num_workers;
tsm = vec_elt_at_index (sm->per_thread_data, thread_index);
- key.l_addr.as_u32 = out_addr->as_u32;
- key.l_port = out_port;
- key.r_addr.as_u32 = eh_addr->as_u32;
- key.r_port = eh_port;
- key.proto = proto;
- key.fib_index = fib_index;
- kv.key[0] = key.as_u64[0];
- kv.key[1] = key.as_u64[1];
- if (clib_bihash_search_16_8 (&tsm->out2in_ed, &kv, &value))
+ init_ed_k (&kv, *out_addr, out_port, *eh_addr, eh_port, fib_index, proto);
+ if (clib_bihash_search_16_8 (&sm->out2in_ed, &kv, &value))
return;
- s = pool_elt_at_index (tsm->sessions, value.value);
+ s = pool_elt_at_index (tsm->sessions, ed_value_get_session_index (&value));
nat_free_session_data (sm, s, thread_index, 1);
nat44_delete_session (sm, s, thread_index);
}
u32 thread_index)
{
snat_main_t *sm = &snat_main;
- nat_ed_ses_key_t key;
clib_bihash_kv_16_8_t kv, value;
snat_session_t *s;
snat_main_per_thread_data_t *tsm;
tsm = vec_elt_at_index (sm->per_thread_data, thread_index);
- key.l_addr.as_u32 = out_addr->as_u32;
- key.l_port = out_port;
- key.r_addr.as_u32 = eh_addr->as_u32;
- key.r_port = eh_port;
- key.proto = proto;
- key.fib_index = fib_index;
- kv.key[0] = key.as_u64[0];
- kv.key[1] = key.as_u64[1];
- if (clib_bihash_search_16_8 (&tsm->out2in_ed, &kv, &value))
+ init_ed_k (&kv, *out_addr, out_port, *eh_addr, eh_port, fib_index, proto);
+ if (clib_bihash_search_16_8 (&sm->out2in_ed, &kv, &value))
return;
- s = pool_elt_at_index (tsm->sessions, value.value);
+ s = pool_elt_at_index (tsm->sessions, ed_value_get_session_index (&value));
s->total_pkts = total_pkts;
s->total_bytes = total_bytes;
}
+static u32
+nat_calc_bihash_buckets (u32 n_elts)
+{
+ return 1 << (max_log2 (n_elts >> 1) + 1);
+}
+
+static u32
+nat_calc_bihash_memory (u32 n_buckets, uword kv_size)
+{
+ return n_buckets * (8 + kv_size * 4);
+}
+
+void
+nat44_db_init (snat_main_per_thread_data_t * tsm)
+{
+ snat_main_t *sm = &snat_main;
+
+ pool_alloc (tsm->sessions, sm->max_translations_per_thread);
+ pool_alloc (tsm->lru_pool, sm->max_translations_per_thread);
+
+ dlist_elt_t *head;
+
+ pool_get (tsm->lru_pool, head);
+ tsm->tcp_trans_lru_head_index = head - tsm->lru_pool;
+ clib_dlist_init (tsm->lru_pool, tsm->tcp_trans_lru_head_index);
+
+ pool_get (tsm->lru_pool, head);
+ tsm->tcp_estab_lru_head_index = head - tsm->lru_pool;
+ clib_dlist_init (tsm->lru_pool, tsm->tcp_estab_lru_head_index);
+
+ pool_get (tsm->lru_pool, head);
+ tsm->udp_lru_head_index = head - tsm->lru_pool;
+ clib_dlist_init (tsm->lru_pool, tsm->udp_lru_head_index);
+
+ pool_get (tsm->lru_pool, head);
+ tsm->icmp_lru_head_index = head - tsm->lru_pool;
+ clib_dlist_init (tsm->lru_pool, tsm->icmp_lru_head_index);
+
+ pool_get (tsm->lru_pool, head);
+ tsm->unk_proto_lru_head_index = head - tsm->lru_pool;
+ clib_dlist_init (tsm->lru_pool, tsm->unk_proto_lru_head_index);
+
+ if (sm->endpoint_dependent)
+ {
+ clib_bihash_init_16_8 (&tsm->in2out_ed, "in2out-ed",
+ sm->translation_buckets,
+ sm->translation_memory_size);
+ clib_bihash_set_kvp_format_fn_16_8 (&tsm->in2out_ed,
+ format_ed_session_kvp);
+ }
+ else
+ {
+ clib_bihash_init_8_8 (&tsm->in2out, "in2out",
+ sm->translation_buckets,
+ sm->translation_memory_size);
+ clib_bihash_set_kvp_format_fn_8_8 (&tsm->in2out, format_session_kvp);
+ clib_bihash_init_8_8 (&tsm->out2in, "out2in",
+ sm->translation_buckets,
+ sm->translation_memory_size);
+ clib_bihash_set_kvp_format_fn_8_8 (&tsm->out2in, format_session_kvp);
+ }
+
+ // TODO: resolve static mappings (put only to !ED)
+ pool_alloc (tsm->list_pool, sm->max_translations_per_thread);
+ clib_bihash_init_8_8 (&tsm->user_hash, "users", sm->user_buckets,
+ sm->user_memory_size);
+ clib_bihash_set_kvp_format_fn_8_8 (&tsm->user_hash, format_user_kvp);
+}
+
+void
+nat44_db_free (snat_main_per_thread_data_t * tsm)
+{
+ snat_main_t *sm = &snat_main;
+
+ pool_free (tsm->sessions);
+ pool_free (tsm->lru_pool);
+
+ if (sm->endpoint_dependent)
+ {
+ clib_bihash_free_16_8 (&tsm->in2out_ed);
+ }
+ else
+ {
+ clib_bihash_free_8_8 (&tsm->in2out);
+ clib_bihash_free_8_8 (&tsm->out2in);
+ }
+
+ // TODO: resolve static mappings (put only to !ED)
+ pool_free (tsm->users);
+ pool_free (tsm->list_pool);
+ clib_bihash_free_8_8 (&tsm->user_hash);
+}
+
+void
+nat44_sessions_clear ()
+{
+ snat_main_t *sm = &snat_main;
+ snat_main_per_thread_data_t *tsm;
+
+ if (sm->endpoint_dependent)
+ {
+ clib_bihash_free_16_8 (&sm->out2in_ed);
+ clib_bihash_init_16_8 (&sm->out2in_ed, "out2in-ed",
+ clib_max (1, sm->num_workers) *
+ sm->translation_buckets,
+ clib_max (1, sm->num_workers) *
+ sm->translation_memory_size);
+ clib_bihash_set_kvp_format_fn_16_8 (&sm->out2in_ed,
+ format_ed_session_kvp);
+ }
+
+ /* *INDENT-OFF* */
+ vec_foreach (tsm, sm->per_thread_data)
+ {
+ u32 ti;
+
+ nat44_db_free (tsm);
+ nat44_db_init (tsm);
+
+ ti = tsm->snat_thread_index;
+ vlib_set_simple_counter (&sm->total_users, ti, 0, 0);
+ vlib_set_simple_counter (&sm->total_sessions, ti, 0, 0);
+ }
+ /* *INDENT-ON* */
+}
+
static clib_error_t *
snat_config (vlib_main_t * vm, unformat_input_t * input)
{
snat_main_t *sm = &snat_main;
nat66_main_t *nm = &nat66_main;
- u32 translation_buckets = 1024;
- u32 translation_memory_size = 128 << 20;
- u32 user_buckets = 128;
- u32 user_memory_size = 64 << 20;
- u32 max_translations_per_user = 100;
- u32 outside_vrf_id = 0;
- u32 outside_ip6_vrf_id = 0;
- u32 inside_vrf_id = 0;
+ snat_main_per_thread_data_t *tsm;
+
u32 static_mapping_buckets = 1024;
- u32 static_mapping_memory_size = 64 << 20;
+ uword static_mapping_memory_size = 64 << 20;
+
u32 nat64_bib_buckets = 1024;
u32 nat64_bib_memory_size = 128 << 20;
+
u32 nat64_st_buckets = 2048;
- u32 nat64_st_memory_size = 256 << 20;
+ uword nat64_st_memory_size = 256 << 20;
+
+ u32 max_users_per_thread = 0;
+ u32 user_memory_size = 0;
+ u32 max_translations_per_thread = 0;
+ u32 translation_memory_size = 0;
+
+ u32 max_translations_per_user = ~0;
+
+ u32 outside_vrf_id = 0;
+ u32 outside_ip6_vrf_id = 0;
+ u32 inside_vrf_id = 0;
u8 static_mapping_only = 0;
u8 static_mapping_connection_tracking = 0;
- snat_main_per_thread_data_t *tsm;
- dslite_main_t *dm = &dslite_main;
+
+ u32 udp_timeout = SNAT_UDP_TIMEOUT;
+ u32 icmp_timeout = SNAT_ICMP_TIMEOUT;
+ u32 tcp_transitory_timeout = SNAT_TCP_TRANSITORY_TIMEOUT;
+ u32 tcp_established_timeout = SNAT_TCP_ESTABLISHED_TIMEOUT;
sm->deterministic = 0;
sm->out2in_dpo = 0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat
- (input, "translation hash buckets %d", &translation_buckets))
+ (input, "max translations per thread %d",
+ &max_translations_per_thread))
+ ;
+ else if (unformat (input, "udp timeout %d", &udp_timeout))
;
+ else if (unformat (input, "icmp timeout %d", &icmp_timeout))
+ ;
+ else if (unformat (input, "tcp transitory timeout %d",
+ &tcp_transitory_timeout));
+ else if (unformat (input, "tcp established timeout %d",
+ &tcp_established_timeout));
else if (unformat (input, "translation hash memory %d",
&translation_memory_size));
- else if (unformat (input, "user hash buckets %d", &user_buckets))
+ else
+ if (unformat
+ (input, "max users per thread %d", &max_users_per_thread))
;
else if (unformat (input, "user hash memory %d", &user_memory_size))
;
;
else if (unformat (input, "out2in dpo"))
sm->out2in_dpo = 1;
- else if (unformat (input, "dslite ce"))
- dslite_set_ce (dm, 1);
else if (unformat (input, "endpoint-dependent"))
sm->endpoint_dependent = 1;
else
if (sm->out2in_dpo && (sm->deterministic || sm->endpoint_dependent))
return clib_error_return (0,
"out2in dpo mode available only for simple nat");
+ if (sm->endpoint_dependent && max_users_per_thread > 0)
+ {
+ return clib_error_return (0,
+ "setting 'max users' in endpoint-dependent mode is not supported");
+ }
+
+ if (sm->endpoint_dependent && max_translations_per_user != ~0)
+ {
+ return clib_error_return (0,
+ "setting 'max translations per user' in endpoint-dependent mode is not supported");
+ }
+
+ /* optionally configurable timeouts for testing purposes */
+ sm->udp_timeout = udp_timeout;
+ sm->tcp_transitory_timeout = tcp_transitory_timeout;
+ sm->tcp_established_timeout = tcp_established_timeout;
+ sm->icmp_timeout = icmp_timeout;
+
+ if (0 == max_users_per_thread)
+ {
+ max_users_per_thread = 1024;
+ }
+ sm->max_users_per_thread = max_users_per_thread;
+ sm->user_buckets = nat_calc_bihash_buckets (sm->max_users_per_thread);
- /* for show commands, etc. */
- sm->translation_buckets = translation_buckets;
+ if (0 == max_translations_per_thread)
+ {
+ // default value based on legacy setting of load factor 10 * default
+ // translation buckets 1024
+ max_translations_per_thread = 10 * 1024;
+ }
+ sm->max_translations_per_thread = max_translations_per_thread;
+ sm->translation_buckets =
+ nat_calc_bihash_buckets (sm->max_translations_per_thread);
+ if (0 == translation_memory_size)
+ {
+ translation_memory_size =
+ nat_calc_bihash_memory (sm->translation_buckets,
+ sizeof (clib_bihash_16_8_t));
+ }
sm->translation_memory_size = translation_memory_size;
- /* do not exceed load factor 10 */
- sm->max_translations = 10 * translation_buckets;
- sm->user_buckets = user_buckets;
+ if (0 == user_memory_size)
+ {
+ user_memory_size =
+ nat_calc_bihash_memory (sm->max_users_per_thread,
+ sizeof (clib_bihash_8_8_t));
+ }
sm->user_memory_size = user_memory_size;
- sm->max_translations_per_user = max_translations_per_user;
+ vec_add1 (sm->max_translations_per_fib, sm->max_translations_per_thread);
+
+ sm->max_translations_per_user = max_translations_per_user == ~0 ?
+ sm->max_translations_per_thread : max_translations_per_user;
+
sm->outside_vrf_id = outside_vrf_id;
sm->outside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
outside_vrf_id,
- FIB_SOURCE_PLUGIN_HI);
+ nat_fib_src_hi);
nm->outside_vrf_id = outside_ip6_vrf_id;
nm->outside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6,
outside_ip6_vrf_id,
- FIB_SOURCE_PLUGIN_HI);
+ nat_fib_src_hi);
sm->inside_vrf_id = inside_vrf_id;
sm->inside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
inside_vrf_id,
- FIB_SOURCE_PLUGIN_HI);
+ nat_fib_src_hi);
sm->static_mapping_only = static_mapping_only;
sm->static_mapping_connection_tracking = static_mapping_connection_tracking;
{
if (sm->endpoint_dependent)
{
- sm->worker_in2out_cb = snat_get_worker_in2out_cb;
+ sm->worker_in2out_cb = nat44_ed_get_worker_in2out_cb;
sm->worker_out2in_cb = nat44_ed_get_worker_out2in_cb;
+
sm->in2out_node_index = nat44_ed_in2out_node.index;
sm->in2out_output_node_index = nat44_ed_in2out_output_node.index;
sm->out2in_node_index = nat44_ed_out2in_node.index;
+
sm->icmp_match_in2out_cb = icmp_match_in2out_ed;
sm->icmp_match_out2in_cb = icmp_match_out2in_ed;
nat_affinity_init (vm);
nat_ha_init (vm, nat_ha_sadd_ed_cb, nat_ha_sdel_ed_cb,
nat_ha_sref_ed_cb);
+ clib_bihash_init_16_8 (&sm->out2in_ed, "out2in-ed",
+ clib_max (1, sm->num_workers) *
+ sm->translation_buckets,
+ clib_max (1, sm->num_workers) *
+ sm->translation_memory_size);
+ clib_bihash_set_kvp_format_fn_16_8 (&sm->out2in_ed,
+ format_ed_session_kvp);
}
else
{
sm->worker_in2out_cb = snat_get_worker_in2out_cb;
sm->worker_out2in_cb = snat_get_worker_out2in_cb;
+
sm->in2out_node_index = snat_in2out_node.index;
sm->in2out_output_node_index = snat_in2out_output_node.index;
sm->out2in_node_index = snat_out2in_node.index;
+
sm->icmp_match_in2out_cb = icmp_match_in2out_slow;
sm->icmp_match_out2in_cb = icmp_match_out2in_slow;
nat_ha_init (vm, nat_ha_sadd_cb, nat_ha_sdel_cb, nat_ha_sref_cb);
/* *INDENT-OFF* */
vec_foreach (tsm, sm->per_thread_data)
{
- if (sm->endpoint_dependent)
- {
- clib_bihash_init_16_8 (&tsm->in2out_ed, "in2out-ed",
- translation_buckets,
- translation_memory_size);
- clib_bihash_set_kvp_format_fn_16_8 (&tsm->in2out_ed,
- format_ed_session_kvp);
-
- clib_bihash_init_16_8 (&tsm->out2in_ed, "out2in-ed",
- translation_buckets,
- translation_memory_size);
- clib_bihash_set_kvp_format_fn_16_8 (&tsm->out2in_ed,
- format_ed_session_kvp);
- }
- else
- {
- clib_bihash_init_8_8 (&tsm->in2out, "in2out",
- translation_buckets,
- translation_memory_size);
- clib_bihash_set_kvp_format_fn_8_8 (&tsm->in2out,
- format_session_kvp);
-
- clib_bihash_init_8_8 (&tsm->out2in, "out2in",
- translation_buckets,
- translation_memory_size);
- clib_bihash_set_kvp_format_fn_8_8 (&tsm->out2in,
- format_session_kvp);
- }
-
- clib_bihash_init_8_8 (&tsm->user_hash, "users", user_buckets,
- user_memory_size);
- clib_bihash_set_kvp_format_fn_8_8 (&tsm->user_hash,
- format_user_kvp);
+ nat44_db_init (tsm);
}
/* *INDENT-ON* */
-
}
else
{
snat_main_t *sm = &snat_main;
snat_static_map_resolve_t *rp;
snat_static_mapping_t *m;
- snat_session_key_t m_key;
clib_bihash_kv_8_8_t kv, value;
int i, rv;
ip4_address_t l_addr;
return;
match:
- m_key.addr.as_u32 = address->as_u32;
- m_key.port = rp->addr_only ? 0 : rp->e_port;
- m_key.protocol = rp->addr_only ? 0 : rp->proto;
- m_key.fib_index = sm->outside_fib_index;
- kv.key = m_key.as_u64;
+ 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
int
nat44_del_session (snat_main_t * sm, ip4_address_t * addr, u16 port,
- snat_protocol_t proto, u32 vrf_id, int is_in)
+ nat_protocol_t proto, u32 vrf_id, int is_in)
{
snat_main_per_thread_data_t *tsm;
clib_bihash_kv_8_8_t kv, value;
ip4_header_t ip;
u32 fib_index = fib_table_find (FIB_PROTOCOL_IP4, vrf_id);
- snat_session_key_t key;
snat_session_t *s;
clib_bihash_8_8_t *t;
if (sm->num_workers > 1)
tsm =
vec_elt_at_index (sm->per_thread_data,
- sm->worker_in2out_cb (&ip, fib_index));
+ sm->worker_in2out_cb (&ip, fib_index, 0));
else
tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
- key.addr.as_u32 = addr->as_u32;
- key.port = clib_host_to_net_u16 (port);
- key.protocol = proto;
- key.fib_index = fib_index;
- kv.key = key.as_u64;
+ init_nat_k (&kv, *addr, port, fib_index, proto);
t = is_in ? &tsm->in2out : &tsm->out2in;
if (!clib_bihash_search_8_8 (t, &kv, &value))
{
{
ip4_header_t ip;
clib_bihash_16_8_t *t;
- nat_ed_ses_key_t key;
clib_bihash_kv_16_8_t kv, value;
u32 fib_index = fib_table_find (FIB_PROTOCOL_IP4, vrf_id);
snat_session_t *s;
if (sm->num_workers > 1)
tsm =
vec_elt_at_index (sm->per_thread_data,
- sm->worker_in2out_cb (&ip, fib_index));
+ sm->worker_in2out_cb (&ip, fib_index, 0));
else
tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
- t = is_in ? &tsm->in2out_ed : &tsm->out2in_ed;
- key.l_addr.as_u32 = addr->as_u32;
- key.r_addr.as_u32 = eh_addr->as_u32;
- key.l_port = clib_host_to_net_u16 (port);
- key.r_port = clib_host_to_net_u16 (eh_port);
- key.proto = proto;
- key.fib_index = fib_index;
- kv.key[0] = key.as_u64[0];
- kv.key[1] = key.as_u64[1];
+ t = is_in ? &tsm->in2out_ed : &sm->out2in_ed;
+ init_ed_k (&kv, *addr, port, *eh_addr, eh_port, fib_index, proto);
if (clib_bihash_search_16_8 (t, &kv, &value))
- return VNET_API_ERROR_NO_SUCH_ENTRY;
+ {
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+ }
if (pool_is_free_index (tsm->sessions, value.value))
return VNET_API_ERROR_UNSPECIFIED;
s = pool_elt_at_index (tsm->sessions, value.value);
nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
- nat44_delete_session (sm, s, tsm - sm->per_thread_data);
+ nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1);
return 0;
}
sm->alloc_addr_and_port = nat_alloc_addr_and_port_default;
}
+VLIB_NODE_FN (nat_default_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (nat_default_node) = {
+ .name = "nat-default",
+ .vector_size = sizeof (u32),
+ .format_trace = 0,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = 0,
+ .n_next_nodes = NAT_N_NEXT,
+ .next_nodes = {
+ [NAT_NEXT_DROP] = "error-drop",
+ [NAT_NEXT_ICMP_ERROR] = "ip4-icmp-error",
+ [NAT_NEXT_IN2OUT_ED_FAST_PATH] = "nat44-ed-in2out",
+ [NAT_NEXT_IN2OUT_ED_SLOW_PATH] = "nat44-ed-in2out-slowpath",
+ [NAT_NEXT_IN2OUT_ED_OUTPUT_SLOW_PATH] = "nat44-ed-in2out-output-slowpath",
+ [NAT_NEXT_OUT2IN_ED_FAST_PATH] = "nat44-ed-out2in",
+ [NAT_NEXT_OUT2IN_ED_SLOW_PATH] = "nat44-ed-out2in-slowpath",
+ [NAT_NEXT_IN2OUT_CLASSIFY] = "nat44-in2out-worker-handoff",
+ [NAT_NEXT_OUT2IN_CLASSIFY] = "nat44-out2in-worker-handoff",
+ },
+};
+/* *INDENT-ON* */
+
/*
* fd.io coding-style-patch-verification: ON
*