#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 <vpp/app/version.h>
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"),
+ .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-dhcp-client-detect",
+ "ip4-sv-reassembly-feature"),
};
VNET_FEATURE_INIT (snat_in2out_worker_handoff, static) = {
.arc_name = "ip4-unicast",
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"),
+ .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 */
&s->out2in);
}
+void
+nat44_free_session_data (snat_main_t * sm, snat_session_t * s,
+ u32 thread_index, u8 is_ha)
+{
+ snat_session_key_t key;
+ nat_ed_ses_key_t ed_key;
+ 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))
+ {
+ ed_key.proto = s->in2out.port;
+ ed_key.r_port = 0;
+ ed_key.l_port = 0;
+ }
+ 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;
+ }
+
+ 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 (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->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;
+ if (snat_is_unk_proto_session (s))
+ {
+ ed_key.proto = s->in2out.port;
+ ed_key.r_port = 0;
+ ed_key.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;
+ }
+ ed_kv.key[0] = ed_key.as_u64[0];
+ ed_kv.key[1] = ed_key.as_u64[1];
+
+ if (PREDICT_FALSE (clib_bihash_add_del_16_8 (&tsm->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;
+
+ if (!snat_is_unk_proto_session (s))
+ ed_key.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;
+ }
+
+ ed_kv.key[0] = ed_key.as_u64[0];
+ ed_kv.key[1] = ed_key.as_u64[1];
+
+ 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->in2out.protocol, is_twice_nat_session (s));
+ }
+
+ if (snat_is_unk_proto_session (s))
+ return;
+
+ // is this correct ?
+ if (!is_ha)
+ {
+ snat_ipfix_logging_nat44_ses_delete (thread_index,
+ s->in2out.addr.as_u32,
+ s->out2in.addr.as_u32,
+ s->in2out.protocol,
+ 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,
+ 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);
+ }
+
+ if (snat_is_session_static (s))
+ return;
+
+ // should be called for every dynamic session
+ snat_free_outside_address_and_port (sm->addresses, thread_index,
+ &s->out2in);
+}
+
+
snat_user_t *
nat_user_get_or_create (snat_main_t * sm, ip4_address_t * addr, u32 fib_index,
u32 thread_index)
/* no, make a new one */
pool_get (tsm->users, u);
clib_memset (u, 0, sizeof (*u));
+
+ u->min_session_timeout = 0;
+
u->addr.as_u32 = addr->as_u32;
u->fib_index = fib_index;
{
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;
+
+ dlist_elt_t *oldest_elt;
u64 sess_timeout_time;
+ u32 oldest_index;
+ // no sessions
if (PREDICT_FALSE (!(u->nsessions) && !(u->nstaticsessions)))
goto alloc_new;
+ // no free sessions
+ if (PREDICT_FALSE
+ ((u->nsessions + u->nstaticsessions) >= sm->max_translations_per_user))
+ {
+ if (nat44_max_translations_per_user_cleanup (u, thread_index, now))
+ goto alloc_new;
+
+ 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;
+ }
+
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)
{
+ // reuse old session
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;
+ s = nat44_session_reuse_old (sm, u, s, thread_index, now);
}
else
{
+ // alloc new session
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);
- }
-
+ alloc_new:
+ s = nat44_session_alloc_new (tsm, u, now);
vlib_set_simple_counter (&sm->total_sessions, thread_index, 0,
pool_elts (tsm->sessions));
}
-
- s->ha_last_refreshed = now;
-
return s;
}
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,
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);
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)
{
+ 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",
}
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",
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;
node = vlib_get_node_by_name (vm, (u8 *) "nat-pre-out2in");
sm->pre_out2in_node_index = node->index;
- // TODO: output ?? (special node)
-
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;
if (error)
return error;
- dslite_init (vm);
-
nat66_init (vm);
ip4_table_bind_callback_t cbt4 = {
FIB_SOURCE_PRIORITY_LOW,
FIB_SOURCE_BH_SIMPLE);
- /* Init virtual fragmenentation reassembly */
- return nat_reass_init (vm);
+ return error;
}
VLIB_INIT_FUNCTION (snat_init);
}
static u32
-snat_get_worker_out2in_cb (ip4_header_t * ip0, u32 rx_fib_index0,
- u8 is_output)
+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;
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))
{
{
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);
void *l4_header = ip4_next_header (inner_ip);
}
static u32
-nat44_ed_get_worker_out2in_cb (ip4_header_t * ip, u32 rx_fib_index,
- u8 is_output)
+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;
{
nat_ed_ses_key_t key;
- if (!get_icmp_o2i_ed_key (ip, &key))
+ if (!get_icmp_o2i_ed_key (b, ip, &key))
{
key.fib_index = rx_fib_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);
void *l4_header = ip4_next_header (inner_ip);
{
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;
+ //dslite_main_t *dm = &dslite_main;
+ snat_main_per_thread_data_t *tsm;
+
u32 static_mapping_buckets = 1024;
u32 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;
+
+ u32 user_buckets = 128;
+ u32 user_memory_size = 64 << 20;
+ u32 translation_buckets = 1024;
+ u32 translation_memory_size = 128 << 20;
+
+ 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;
+
+ // configurable timeouts
+ 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;
if (unformat
(input, "translation hash buckets %d", &translation_buckets))
;
+ 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, "out2in dpo"))
sm->out2in_dpo = 1;
- else if (unformat (input, "dslite ce"))
- dslite_set_ce (dm, 1);
+ //else if (unformat (input, "dslite ce"))
+ //dslite_set_ce (dm, 1);
else if (unformat (input, "endpoint-dependent"))
sm->endpoint_dependent = 1;
else
return clib_error_return (0,
"out2in dpo mode available only for simple nat");
- /* for show commands, etc. */
+ /* 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;
+
+ sm->min_timeout = nat44_minimal_timeout (sm);
+
+ sm->user_buckets = user_buckets;
+ sm->user_memory_size = user_memory_size;
+
sm->translation_buckets = translation_buckets;
sm->translation_memory_size = translation_memory_size;
+
/* do not exceed load factor 10 */
sm->max_translations = 10 * translation_buckets;
- sm->user_buckets = user_buckets;
- sm->user_memory_size = user_memory_size;
- sm->max_translations_per_user = max_translations_per_user;
+ sm->max_translations_per_user = max_translations_per_user == ~0 ?
+ sm->max_translations : 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,
sm->handoff_out2in_index = nat_pre_out2in_node.index;
sm->handoff_in2out_index = nat_pre_in2out_node.index;
- // TODO: test
sm->handoff_in2out_output_index = nat44_ed_in2out_output_node.index;
sm->in2out_node_index = nat44_ed_in2out_node.index;
sm->worker_in2out_cb = snat_get_worker_in2out_cb;
sm->worker_out2in_cb = snat_get_worker_out2in_cb;
- sm->handoff_out2in_index = snat_in2out_node.index;
- sm->handoff_in2out_index = snat_out2in_node.index;
- // TODO: test
+ sm->handoff_out2in_index = snat_out2in_node.index;
+ sm->handoff_in2out_index = snat_in2out_node.index;
sm->handoff_in2out_output_index = snat_in2out_output_node.index;
sm->in2out_node_index = snat_in2out_node.index;
/* *INDENT-OFF* */
vec_foreach (tsm, sm->per_thread_data)
{
+ tsm->min_session_timeout = 0;
+
+ tsm->cleared = 0;
+ tsm->cleanup_runs = 0;
+ tsm->cleanup_timeout = 0;
+
if (sm->endpoint_dependent)
{
clib_bihash_init_16_8 (&tsm->in2out_ed, "in2out-ed",
[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_IN2OUT_ED_REASS] = "nat44-ed-in2out-reass",
- [NAT_NEXT_IN2OUT_ED_OUTPUT_REASS] = "nat44-ed-in2out-reass-output",
[NAT_NEXT_OUT2IN_ED_FAST_PATH] = "nat44-ed-out2in",
[NAT_NEXT_OUT2IN_ED_SLOW_PATH] = "nat44-ed-out2in-slowpath",
- [NAT_NEXT_OUT2IN_ED_REASS] = "nat44-ed-out2in-reass",
},
};
/* *INDENT-ON* */