#include <nat/nat_ipfix_logging.h>
#include <nat/nat_det.h>
#include <nat/nat64.h>
+#include <nat/dslite.h>
+#include <nat/nat_reass.h>
#include <vnet/fib/fib_table.h>
#include <vnet/fib/ip4_fib.h>
.node_name = "nat44-out2in",
.runs_before = VNET_FEATURES ("ip4-lookup"),
};
+VNET_FEATURE_INIT (ip4_nat_classify, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "nat44-classify",
+ .runs_before = VNET_FEATURES ("ip4-lookup"),
+};
VNET_FEATURE_INIT (ip4_snat_det_in2out, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-det-in2out",
.node_name = "nat44-det-out2in",
.runs_before = VNET_FEATURES ("ip4-lookup"),
};
+VNET_FEATURE_INIT (ip4_nat_det_classify, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "nat44-det-classify",
+ .runs_before = VNET_FEATURES ("ip4-lookup"),
+};
VNET_FEATURE_INIT (ip4_snat_in2out_worker_handoff, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-in2out-worker-handoff",
.node_name = "nat44-out2in-worker-handoff",
.runs_before = VNET_FEATURES ("ip4-lookup"),
};
+VNET_FEATURE_INIT (ip4_nat_handoff_classify, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "nat44-handoff-classify",
+ .runs_before = VNET_FEATURES ("ip4-lookup"),
+};
VNET_FEATURE_INIT (ip4_snat_in2out_fast, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-in2out-fast",
.runs_before = VNET_FEATURES ("interface-output"),
};
+/* Hook up ip4-local features */
+VNET_FEATURE_INIT (ip4_nat_hairpinning, static) =
+{
+ .arc_name = "ip4-local",
+ .node_name = "nat44-hairpinning",
+ .runs_before = VNET_FEATURES("ip4-local-end-of-arc"),
+};
+
/* *INDENT-OFF* */
VLIB_PLUGIN_REGISTER () = {
};
/* *INDENT-ON* */
+vlib_node_registration_t nat44_classify_node;
+vlib_node_registration_t nat44_det_classify_node;
+vlib_node_registration_t nat44_handoff_classify_node;
+
+typedef enum {
+ NAT44_CLASSIFY_NEXT_IN2OUT,
+ NAT44_CLASSIFY_NEXT_OUT2IN,
+ NAT44_CLASSIFY_N_NEXT,
+} nat44_classify_next_t;
+
+static inline uword
+nat44_classify_node_fn_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ u32 n_left_from, * from, * to_next;
+ nat44_classify_next_t next_index;
+ snat_main_t *sm = &snat_main;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next_index = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+
+ vlib_get_next_frame (vm, node, next_index,
+ to_next, n_left_to_next);
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ u32 bi0;
+ vlib_buffer_t *b0;
+ u32 next0 = NAT44_CLASSIFY_NEXT_IN2OUT;
+ ip4_header_t *ip0;
+ snat_address_t *ap;
+ snat_session_key_t m_key0;
+ clib_bihash_kv_8_8_t kv0, value0;
+
+ /* speculatively enqueue b0 to the current next frame */
+ bi0 = from[0];
+ to_next[0] = bi0;
+ from += 1;
+ to_next += 1;
+ n_left_from -= 1;
+ n_left_to_next -= 1;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ ip0 = vlib_buffer_get_current (b0);
+
+ vec_foreach (ap, sm->addresses)
+ {
+ if (ip0->dst_address.as_u32 == ap->addr.as_u32)
+ {
+ next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
+ break;
+ }
+ }
+
+ if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
+ {
+ m_key0.addr = ip0->dst_address;
+ m_key0.port = 0;
+ m_key0.protocol = 0;
+ m_key0.fib_index = sm->outside_fib_index;
+ kv0.key = m_key0.as_u64;
+ if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv0, &value0))
+ {
+ next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
+ }
+ }
+ /* verify speculative enqueue, maybe switch current next frame */
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, next0);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ return frame->n_vectors;
+}
+
+static uword
+nat44_classify_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return nat44_classify_node_fn_inline (vm, node, frame);
+};
+
+VLIB_REGISTER_NODE (nat44_classify_node) = {
+ .function = nat44_classify_node_fn,
+ .name = "nat44-classify",
+ .vector_size = sizeof (u32),
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_next_nodes = NAT44_CLASSIFY_N_NEXT,
+ .next_nodes = {
+ [NAT44_CLASSIFY_NEXT_IN2OUT] = "nat44-in2out",
+ [NAT44_CLASSIFY_NEXT_OUT2IN] = "nat44-out2in",
+ },
+};
+
+VLIB_NODE_FUNCTION_MULTIARCH (nat44_classify_node,
+ nat44_classify_node_fn);
+
+static uword
+nat44_det_classify_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return nat44_classify_node_fn_inline (vm, node, frame);
+};
+
+VLIB_REGISTER_NODE (nat44_det_classify_node) = {
+ .function = nat44_det_classify_node_fn,
+ .name = "nat44-det-classify",
+ .vector_size = sizeof (u32),
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_next_nodes = NAT44_CLASSIFY_N_NEXT,
+ .next_nodes = {
+ [NAT44_CLASSIFY_NEXT_IN2OUT] = "nat44-det-in2out",
+ [NAT44_CLASSIFY_NEXT_OUT2IN] = "nat44-det-out2in",
+ },
+};
+
+VLIB_NODE_FUNCTION_MULTIARCH (nat44_det_classify_node,
+ nat44_det_classify_node_fn);
+
+static uword
+nat44_handoff_classify_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return nat44_classify_node_fn_inline (vm, node, frame);
+};
+
+VLIB_REGISTER_NODE (nat44_handoff_classify_node) = {
+ .function = nat44_handoff_classify_node_fn,
+ .name = "nat44-handoff-classify",
+ .vector_size = sizeof (u32),
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_next_nodes = NAT44_CLASSIFY_N_NEXT,
+ .next_nodes = {
+ [NAT44_CLASSIFY_NEXT_IN2OUT] = "nat44-in2out-worker-handoff",
+ [NAT44_CLASSIFY_NEXT_OUT2IN] = "nat44-out2in-worker-handoff",
+ },
+};
+
+VLIB_NODE_FUNCTION_MULTIARCH (nat44_handoff_classify_node,
+ nat44_handoff_classify_node_fn);
+
/**
* @brief Add/del NAT address to FIB.
*
{
snat_address_t * ap;
snat_interface_t *i;
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
if (vrf_id != ~0)
sm->vrf_mode = 1;
ap->addr = *addr;
if (vrf_id != ~0)
ap->fib_index =
- fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, vrf_id);
+ fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, vrf_id,
+ FIB_SOURCE_PLUGIN_HI);
else
ap->fib_index = ~0;
#define _(N, i, n, s) \
- clib_bitmap_alloc (ap->busy_##n##_port_bitmap, 65535);
+ clib_bitmap_alloc (ap->busy_##n##_port_bitmap, 65535); \
+ ap->busy_##n##_ports = 0; \
+ vec_validate_init_empty (ap->busy_##n##_ports_per_thread, tm->n_vlib_mains - 1, 0);
foreach_snat_protocol
#undef _
/* Add external address to FIB */
pool_foreach (i, sm->interfaces,
({
- if (i->is_inside)
+ if (nat_interface_is_inside(i))
continue;
snat_add_del_addr_to_fib(addr, 32, i->sw_if_index, 1);
}));
pool_foreach (i, sm->output_feature_interfaces,
({
- if (i->is_inside)
+ if (nat_interface_is_inside(i))
continue;
snat_add_del_addr_to_fib(addr, 32, i->sw_if_index, 1);
return VNET_API_ERROR_INVALID_VALUE; \
clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 1); \
if (e_port > 1024) \
- a->busy_##n##_ports++; \
+ { \
+ a->busy_##n##_ports++; \
+ a->busy_##n##_ports_per_thread[(e_port - 1024) / sm->port_per_thread]++; \
+ } \
break;
foreach_snat_protocol
#undef _
kv.value = m - sm->static_mappings;
clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 1);
- /* Assign worker */
if (sm->workers)
{
- snat_user_key_t w_key0;
- snat_worker_key_t w_key1;
-
- w_key0.addr = m->local_addr;
- w_key0.fib_index = m->fib_index;
- kv.key = w_key0.as_u64;
-
- if (clib_bihash_search_8_8 (&sm->worker_by_in, &kv, &value))
- {
- kv.value = sm->first_worker_index +
- sm->workers[sm->next_worker++ % vec_len (sm->workers)];
-
- clib_bihash_add_del_8_8 (&sm->worker_by_in, &kv, 1);
- }
- else
- {
- kv.value = value.value;
- }
-
- w_key1.addr = m->external_addr;
- w_key1.port = clib_host_to_net_u16 (m->external_port);
- w_key1.fib_index = sm->outside_fib_index;
- kv.key = w_key1.as_u64;
- clib_bihash_add_del_8_8 (&sm->worker_by_out, &kv, 1);
+ ip4_header_t ip = {
+ .src_address = m->local_addr,
+ };
+ m->worker_index = sm->worker_in2out_cb (&ip, m->fib_index);
}
}
else
case SNAT_PROTOCOL_##N: \
clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 0); \
if (e_port > 1024) \
- a->busy_##n##_ports--; \
+ { \
+ a->busy_##n##_ports--; \
+ a->busy_##n##_ports_per_thread[(e_port - 1024) / sm->port_per_thread]--; \
+ } \
break;
foreach_snat_protocol
#undef _
u_key.addr = m->local_addr;
u_key.fib_index = m->fib_index;
kv.key = u_key.as_u64;
- if (!clib_bihash_search_8_8 (&sm->user_hash, &kv, &value))
+ if (sm->num_workers > 1)
+ tsm = vec_elt_at_index (sm->per_thread_data, m->worker_index);
+ else
+ tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
+ if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
{
user_index = value.value;
- if (!clib_bihash_search_8_8 (&sm->worker_by_in, &kv, &value))
- tsm = vec_elt_at_index (sm->per_thread_data, value.value);
- else
- tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
u = pool_elt_at_index (tsm->users, user_index);
if (u->nstaticsessions)
{
if (snat_is_unk_proto_session (s))
{
clib_bihash_kv_16_8_t up_kv;
- snat_unk_proto_ses_key_t up_key;
+ nat_ed_ses_key_t up_key;
up_key.l_addr = s->in2out.addr;
up_key.r_addr = s->ext_host_addr;
up_key.fib_index = s->in2out.fib_index;
up_key.proto = s->in2out.port;
- up_key.rsvd[0] = up_key.rsvd[1] = up_key.rsvd[2] = 0;
+ up_key.rsvd = 0;
+ up_key.l_port = 0;
up_kv.key[0] = up_key.as_u64[0];
up_kv.key[1] = up_key.as_u64[1];
- if (clib_bihash_add_del_16_8 (&sm->in2out_unk_proto,
+ if (clib_bihash_add_del_16_8 (&sm->in2out_ed,
&up_kv, 0))
clib_warning ("in2out key del failed");
up_key.fib_index = s->out2in.fib_index;
up_kv.key[0] = up_key.as_u64[0];
up_kv.key[1] = up_key.as_u64[1];
- if (clib_bihash_add_del_16_8 (&sm->out2in_unk_proto,
+ if (clib_bihash_add_del_16_8 (&sm->out2in_ed,
&up_kv, 0))
clib_warning ("out2in key del failed");
s->in2out.fib_index);
value.key = s->in2out.as_u64;
- if (clib_bihash_add_del_8_8 (&sm->in2out, &value, 0))
+ if (clib_bihash_add_del_8_8 (&tsm->in2out, &value, 0))
clib_warning ("in2out key del failed");
value.key = s->out2in.as_u64;
- if (clib_bihash_add_del_8_8 (&sm->out2in, &value, 0))
+ if (clib_bihash_add_del_8_8 (&tsm->out2in, &value, 0))
clib_warning ("out2in key del failed");
delete:
pool_put (tsm->sessions, s);
if (addr_only)
{
pool_put (tsm->users, u);
- clib_bihash_add_del_8_8 (&sm->user_hash, &kv, 0);
+ clib_bihash_add_del_8_8 (&tsm->user_hash, &kv, 0);
}
}
}
/* Add/delete external address to FIB */
pool_foreach (interface, sm->interfaces,
({
- if (interface->is_inside)
+ if (nat_interface_is_inside(interface))
continue;
snat_add_del_addr_to_fib(&e_addr, 32, interface->sw_if_index, is_add);
}));
pool_foreach (interface, sm->output_feature_interfaces,
({
- if (interface->is_inside)
+ if (nat_interface_is_inside(interface))
continue;
snat_add_del_addr_to_fib(&e_addr, 32, interface->sw_if_index, is_add);
return 0;
}
+int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
+ snat_protocol_t proto, u32 vrf_id,
+ nat44_lb_addr_port_t *locals, u8 is_add)
+{
+ 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;
+ u32 fib_index;
+ snat_address_t *a = 0;
+ int i;
+ nat44_lb_addr_port_t *local;
+ u32 worker_index = 0;
+ snat_main_per_thread_data_t *tsm;
+
+ m_key.addr = e_addr;
+ m_key.port = e_port;
+ m_key.protocol = proto;
+ m_key.fib_index = sm->outside_fib_index;
+ kv.key = m_key.as_u64;
+ if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
+ m = 0;
+ else
+ m = pool_elt_at_index (sm->static_mappings, value.value);
+
+ if (is_add)
+ {
+ if (m)
+ return VNET_API_ERROR_VALUE_EXIST;
+
+ if (vec_len (locals) < 2)
+ return VNET_API_ERROR_INVALID_VALUE;
+
+ fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
+ vrf_id,
+ FIB_SOURCE_PLUGIN_HI);
+
+ /* Find external address in allocated addresses and reserve port for
+ address and port pair mapping when dynamic translations enabled */
+ if (!sm->static_mapping_only)
+ {
+ for (i = 0; i < vec_len (sm->addresses); i++)
+ {
+ if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
+ {
+ a = sm->addresses + i;
+ /* External port must be unused */
+ switch (proto)
+ {
+#define _(N, j, n, s) \
+ case SNAT_PROTOCOL_##N: \
+ if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, e_port)) \
+ return VNET_API_ERROR_INVALID_VALUE; \
+ clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 1); \
+ if (e_port > 1024) \
+ { \
+ a->busy_##n##_ports++; \
+ a->busy_##n##_ports_per_thread[(e_port - 1024) / sm->port_per_thread]++; \
+ } \
+ break;
+ foreach_snat_protocol
+#undef _
+ default:
+ clib_warning("unknown_protocol");
+ return VNET_API_ERROR_INVALID_VALUE_2;
+ }
+ break;
+ }
+ }
+ /* External address must be allocated */
+ if (!a)
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+ }
+
+ pool_get (sm->static_mappings, m);
+ memset (m, 0, sizeof (*m));
+ m->external_addr = e_addr;
+ m->addr_only = 0;
+ m->vrf_id = vrf_id;
+ m->fib_index = fib_index;
+ m->external_port = e_port;
+ m->proto = proto;
+
+ m_key.addr = m->external_addr;
+ m_key.port = m->external_port;
+ m_key.protocol = m->proto;
+ m_key.fib_index = sm->outside_fib_index;
+ kv.key = m_key.as_u64;
+ kv.value = m - sm->static_mappings;
+ if (clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 1))
+ {
+ clib_warning ("static_mapping_by_external key add failed");
+ return VNET_API_ERROR_UNSPECIFIED;
+ }
+
+ /* Assign worker */
+ if (sm->workers)
+ {
+ worker_index = sm->first_worker_index +
+ sm->workers[sm->next_worker++ % vec_len (sm->workers)];
+ tsm = vec_elt_at_index (sm->per_thread_data, worker_index);
+ m->worker_index = worker_index;
+ }
+ else
+ tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
+
+ m_key.port = clib_host_to_net_u16 (m->external_port);
+ kv.key = m_key.as_u64;
+ kv.value = ~0ULL;
+ if (clib_bihash_add_del_8_8(&tsm->out2in, &kv, 1))
+ {
+ clib_warning ("static_mapping_by_local key add failed");
+ return VNET_API_ERROR_UNSPECIFIED;
+ }
+
+ m_key.fib_index = m->fib_index;
+ for (i = 0; i < vec_len (locals); i++)
+ {
+ m_key.addr = locals[i].addr;
+ m_key.port = locals[i].port;
+ kv.key = m_key.as_u64;
+ kv.value = 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 :\
+ (locals[i - 1].prefix + locals[i].probability);
+ vec_add1 (m->locals, locals[i]);
+
+ m_key.port = clib_host_to_net_u16 (locals[i].port);
+ kv.key = m_key.as_u64;
+ kv.value = ~0ULL;
+ if (clib_bihash_add_del_8_8(&tsm->in2out, &kv, 1))
+ {
+ clib_warning ("in2out key add failed");
+ return VNET_API_ERROR_UNSPECIFIED;
+ }
+ }
+ }
+ else
+ {
+ if (!m)
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+
+ fib_table_unlock (m->fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_PLUGIN_HI);
+
+ /* Free external address port */
+ if (!sm->static_mapping_only)
+ {
+ for (i = 0; i < vec_len (sm->addresses); i++)
+ {
+ if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
+ {
+ a = sm->addresses + i;
+ switch (proto)
+ {
+#define _(N, j, n, s) \
+ case SNAT_PROTOCOL_##N: \
+ clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 0); \
+ if (e_port > 1024) \
+ { \
+ a->busy_##n##_ports--; \
+ a->busy_##n##_ports_per_thread[(e_port - 1024) / sm->port_per_thread]--; \
+ } \
+ break;
+ foreach_snat_protocol
+#undef _
+ default:
+ clib_warning("unknown_protocol");
+ return VNET_API_ERROR_INVALID_VALUE_2;
+ }
+ break;
+ }
+ }
+ }
+
+ tsm = vec_elt_at_index (sm->per_thread_data, m->worker_index);
+ m_key.addr = m->external_addr;
+ m_key.port = m->external_port;
+ m_key.protocol = m->proto;
+ m_key.fib_index = sm->outside_fib_index;
+ kv.key = m_key.as_u64;
+ if (clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 0))
+ {
+ clib_warning ("static_mapping_by_external key del failed");
+ return VNET_API_ERROR_UNSPECIFIED;
+ }
+
+ m_key.port = clib_host_to_net_u16 (m->external_port);
+ kv.key = m_key.as_u64;
+ if (clib_bihash_add_del_8_8(&tsm->out2in, &kv, 0))
+ {
+ clib_warning ("outi2in key del failed");
+ return VNET_API_ERROR_UNSPECIFIED;
+ }
+
+ vec_foreach (local, m->locals)
+ {
+ m_key.addr = local->addr;
+ m_key.port = local->port;
+ m_key.fib_index = m->fib_index;
+ kv.key = m_key.as_u64;
+ if (clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 0))
+ {
+ clib_warning ("static_mapping_by_local key del failed");
+ return VNET_API_ERROR_UNSPECIFIED;
+ }
+
+ m_key.port = clib_host_to_net_u16 (local->port);
+ kv.key = m_key.as_u64;
+ if (clib_bihash_add_del_8_8(&tsm->in2out, &kv, 0))
+ {
+ clib_warning ("in2out key del failed");
+ return VNET_API_ERROR_UNSPECIFIED;
+ }
+ }
+ vec_free(m->locals);
+
+ pool_put (sm->static_mappings, m);
+ }
+
+ return 0;
+}
+
int snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm)
{
snat_address_t *a = 0;
}
if (a->fib_index != ~0)
- fib_table_unlock(a->fib_index, FIB_PROTOCOL_IP4);
+ fib_table_unlock(a->fib_index, FIB_PROTOCOL_IP4,
+ FIB_SOURCE_PLUGIN_HI);
/* Delete sessions using address */
if (a->busy_tcp_ports || a->busy_udp_ports || a->busy_icmp_ports)
if (snat_is_unk_proto_session (ses))
{
clib_bihash_kv_16_8_t up_kv;
- snat_unk_proto_ses_key_t up_key;
+ nat_ed_ses_key_t up_key;
up_key.l_addr = ses->in2out.addr;
up_key.r_addr = ses->ext_host_addr;
up_key.fib_index = ses->in2out.fib_index;
up_key.proto = ses->in2out.port;
- up_key.rsvd[0] = up_key.rsvd[1] = up_key.rsvd[2] = 0;
+ up_key.rsvd = 0;
+ up_key.l_port = 0;
up_kv.key[0] = up_key.as_u64[0];
up_kv.key[1] = up_key.as_u64[1];
- if (clib_bihash_add_del_16_8 (&sm->in2out_unk_proto,
+ if (clib_bihash_add_del_16_8 (&sm->in2out_ed,
&up_kv, 0))
clib_warning ("in2out key del failed");
up_key.fib_index = ses->out2in.fib_index;
up_kv.key[0] = up_key.as_u64[0];
up_kv.key[1] = up_key.as_u64[1];
- if (clib_bihash_add_del_16_8 (&sm->out2in_unk_proto,
+ if (clib_bihash_add_del_16_8 (&sm->out2in_ed,
&up_kv, 0))
clib_warning ("out2in key del failed");
}
ses->out2in.port,
ses->in2out.fib_index);
kv.key = ses->in2out.as_u64;
- clib_bihash_add_del_8_8 (&sm->in2out, &kv, 0);
+ clib_bihash_add_del_8_8 (&tsm->in2out, &kv, 0);
kv.key = ses->out2in.as_u64;
- clib_bihash_add_del_8_8 (&sm->out2in, &kv, 0);
+ clib_bihash_add_del_8_8 (&tsm->out2in, &kv, 0);
}
vec_add1 (ses_to_be_removed, ses - tsm->sessions);
clib_dlist_remove (tsm->list_pool, ses->per_user_index);
user_key.addr = ses->in2out.addr;
user_key.fib_index = ses->in2out.fib_index;
kv.key = user_key.as_u64;
- if (!clib_bihash_search_8_8 (&sm->user_hash, &kv, &value))
+ if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
{
u = pool_elt_at_index (tsm->users, value.value);
u->nsessions--;
/* Delete external address from FIB */
pool_foreach (interface, sm->interfaces,
({
- if (interface->is_inside)
+ if (nat_interface_is_inside(interface))
continue;
snat_add_del_addr_to_fib(&addr, 32, interface->sw_if_index, 0);
}));
pool_foreach (interface, sm->output_feature_interfaces,
({
- if (interface->is_inside)
+ if (nat_interface_is_inside(interface))
continue;
snat_add_del_addr_to_fib(&addr, 32, interface->sw_if_index, 0);
{
snat_main_t *sm = &snat_main;
snat_interface_t *i;
- const char * feature_name;
+ const char * feature_name, *del_feature_name;
snat_address_t * ap;
snat_static_mapping_t * m;
snat_det_map_t * dm;
feature_name = is_inside ? "nat44-in2out" : "nat44-out2in";
}
- vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index,
- !is_del, 0, 0);
-
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, 0);
if (i->sw_if_index == sw_if_index)
{
if (is_del)
- pool_put (sm->interfaces, i);
+ {
+ if (nat_interface_is_inside(i) && nat_interface_is_outside(i))
+ {
+ if (is_inside)
+ i->flags &= ~NAT_INTERFACE_FLAG_IS_INSIDE;
+ else
+ i->flags &= ~NAT_INTERFACE_FLAG_IS_OUTSIDE;
+
+ if (sm->num_workers > 1 && !sm->deterministic)
+ del_feature_name = "nat44-handoff-classify";
+ else if (sm->deterministic)
+ del_feature_name = "nat44-det-classify";
+ else
+ del_feature_name = "nat44-classify";
+
+ vnet_feature_enable_disable ("ip4-unicast", del_feature_name,
+ sw_if_index, 0, 0, 0);
+ vnet_feature_enable_disable ("ip4-unicast", feature_name,
+ sw_if_index, 1, 0, 0);
+ }
+ else
+ {
+ vnet_feature_enable_disable ("ip4-unicast", feature_name,
+ sw_if_index, 0, 0, 0);
+ pool_put (sm->interfaces, i);
+ }
+ }
else
- return VNET_API_ERROR_VALUE_EXIST;
+ {
+ if ((nat_interface_is_inside(i) && is_inside) ||
+ (nat_interface_is_outside(i) && !is_inside))
+ return 0;
+
+ if (sm->num_workers > 1 && !sm->deterministic)
+ {
+ del_feature_name = !is_inside ? "nat44-in2out-worker-handoff" :
+ "nat44-out2in-worker-handoff";
+ feature_name = "nat44-handoff-classify";
+ }
+ else if (sm->deterministic)
+ {
+ del_feature_name = !is_inside ? "nat44-det-in2out" :
+ "nat44-det-out2in";
+ feature_name = "nat44-det-classify";
+ }
+ else
+ {
+ del_feature_name = !is_inside ? "nat44-in2out" : "nat44-out2in";
+ feature_name = "nat44-classify";
+ }
+
+ vnet_feature_enable_disable ("ip4-unicast", del_feature_name,
+ sw_if_index, 0, 0, 0);
+ vnet_feature_enable_disable ("ip4-unicast", feature_name,
+ sw_if_index, 1, 0, 0);
+ goto set_flags;
+ }
goto fib;
}
pool_get (sm->interfaces, i);
i->sw_if_index = sw_if_index;
- i->is_inside = is_inside;
+ i->flags = 0;
+ vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index, 1, 0, 0);
+
+set_flags:
+ if (is_inside)
+ i->flags |= NAT_INTERFACE_FLAG_IS_INSIDE;
+ else
+ i->flags |= NAT_INTERFACE_FLAG_IS_OUTSIDE;
/* Add/delete external addresses to FIB */
fib:
if (is_inside)
- return 0;
+ {
+ vnet_feature_enable_disable ("ip4-local", "nat44-hairpinning",
+ sw_if_index, !is_del, 0, 0);
+ return 0;
+ }
vec_foreach (ap, sm->addresses)
snat_add_del_addr_to_fib(&ap->addr, 32, sw_if_index, !is_del);
pool_get (sm->output_feature_interfaces, i);
i->sw_if_index = sw_if_index;
- i->is_inside = is_inside;
+ i->flags = 0;
+ if (is_inside)
+ i->flags |= NAT_INTERFACE_FLAG_IS_INSIDE;
+ else
+ i->flags |= NAT_INTERFACE_FLAG_IS_OUTSIDE;
/* Add/delete external addresses to FIB */
fib:
/* Init IPFIX logging */
snat_ipfix_logging_init(vm);
+ /* Init NAT64 */
error = nat64_init(vm);
+ if (error)
+ return error;
- return error;
+ dslite_init(vm);
+
+ /* Init virtual fragmenentation reassembly */
+ return nat_reass_init(vm);
}
VLIB_INIT_FUNCTION (snat_init);
-void snat_free_outside_address_and_port (snat_main_t * sm,
+void snat_free_outside_address_and_port (snat_address_t * addresses,
+ u32 thread_index,
snat_session_key_t * k,
u32 address_index)
{
snat_address_t *a;
u16 port_host_byte_order = clib_net_to_host_u16 (k->port);
- ASSERT (address_index < vec_len (sm->addresses));
+ ASSERT (address_index < vec_len (addresses));
- a = sm->addresses + address_index;
+ a = addresses + address_index;
switch (k->protocol)
{
clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, \
port_host_byte_order, 0); \
a->busy_##n##_ports--; \
+ a->busy_##n##_ports_per_thread[thread_index]--; \
break;
foreach_snat_protocol
#undef _
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;
if (by_external)
mapping_hash = &sm->static_mapping_by_external;
if (by_external)
{
- mapping->addr = m->local_addr;
- /* Address only mapping doesn't change port */
- mapping->port = m->addr_only ? match.port
- : clib_host_to_net_u16 (m->local_port);
+ if (vec_len (m->locals))
+ {
+ hi = vec_len (m->locals) - 1;
+ rand = 1 + (random_u32 (&sm->random_seed) % m->locals[hi].prefix);
+ while (lo < hi)
+ {
+ mid = ((hi - lo) >> 1) + lo;
+ (rand > m->locals[mid].prefix) ? (lo = mid + 1) : (hi = mid);
+ }
+ if (!(m->locals[lo].prefix >= rand))
+ return 1;
+ mapping->addr = m->locals[lo].addr;
+ mapping->port = clib_host_to_net_u16 (m->locals[lo].port);
+ }
+ else
+ {
+ mapping->addr = m->local_addr;
+ /* Address only mapping doesn't change port */
+ mapping->port = m->addr_only ? match.port
+ : clib_host_to_net_u16 (m->local_port);
+ }
mapping->fib_index = m->fib_index;
+ mapping->protocol = m->proto;
}
else
{
}
static_always_inline u16
-snat_random_port (snat_main_t * sm, u16 min, u16 max)
+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_main_t * sm,
+int snat_alloc_outside_address_and_port (snat_address_t * addresses,
u32 fib_index,
u32 thread_index,
snat_session_key_t * k,
- u32 * address_indexp)
+ u32 * address_indexp,
+ u8 vrf_mode,
+ u16 port_per_thread,
+ u32 snat_thread_index)
{
int i;
snat_address_t *a;
u32 portnum;
- for (i = 0; i < vec_len (sm->addresses); i++)
+ for (i = 0; i < vec_len (addresses); i++)
{
- a = sm->addresses + i;
- if (sm->vrf_mode && a->fib_index != ~0 && a->fib_index != fib_index)
+ a = addresses + i;
+ if (vrf_mode && a->fib_index != ~0 && a->fib_index != fib_index)
continue;
switch (k->protocol)
{
#define _(N, j, n, s) \
case SNAT_PROTOCOL_##N: \
- if (a->busy_##n##_ports < (sm->port_per_thread * sm->num_snat_thread)) \
+ if (a->busy_##n##_ports_per_thread[thread_index] < port_per_thread) \
{ \
while (1) \
{ \
- portnum = (sm->port_per_thread * \
- sm->per_thread_data[thread_index].snat_thread_index) + \
- snat_random_port(sm, 0, sm->port_per_thread) + 1024; \
+ 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)) \
continue; \
clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, portnum, 1); \
+ a->busy_##n##_ports_per_thread[thread_index]++; \
a->busy_##n##_ports++; \
k->addr = a->addr; \
k->port = clib_host_to_net_u16(portnum); \
"nat44 add static mapping tcp|udp|icmp local <addr> [<port>] external <addr> [<port>] [vrf <table-id>] [del]",
};
+static clib_error_t *
+add_lb_static_mapping_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ clib_error_t * error = 0;
+ ip4_address_t l_addr, e_addr;
+ u32 l_port = 0, e_port = 0, vrf_id = 0, probability = 0;
+ int is_add = 1;
+ int rv;
+ snat_protocol_t proto;
+ u8 proto_set = 0;
+ nat44_lb_addr_port_t *locals = 0, local;
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "local %U:%u probability %u",
+ unformat_ip4_address, &l_addr, &l_port, &probability))
+ {
+ memset (&local, 0, sizeof (local));
+ local.addr = l_addr;
+ local.port = (u16) l_port;
+ local.probability = (u8) probability;
+ vec_add1 (locals, local);
+ }
+ else if (unformat (line_input, "external %U:%u", unformat_ip4_address,
+ &e_addr, &e_port))
+ ;
+ else if (unformat (line_input, "vrf %u", &vrf_id))
+ ;
+ else if (unformat (line_input, "protocol %U", unformat_snat_protocol,
+ &proto))
+ proto_set = 1;
+ else if (unformat (line_input, "del"))
+ is_add = 0;
+ else
+ {
+ error = clib_error_return (0, "unknown input: '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ if (vec_len (locals) < 2)
+ {
+ error = clib_error_return (0, "at least two local must be set");
+ goto done;
+ }
+
+ if (!proto_set)
+ {
+ error = clib_error_return (0, "missing protocol");
+ goto done;
+ }
+
+ rv = nat44_add_del_lb_static_mapping (e_addr, (u16) e_port, proto, vrf_id,
+ locals, is_add);
+
+ switch (rv)
+ {
+ case VNET_API_ERROR_INVALID_VALUE:
+ error = clib_error_return (0, "External port already in use.");
+ goto done;
+ case VNET_API_ERROR_NO_SUCH_ENTRY:
+ if (is_add)
+ error = clib_error_return (0, "External addres must be allocated.");
+ else
+ error = clib_error_return (0, "Mapping not exist.");
+ goto done;
+ case VNET_API_ERROR_VALUE_EXIST:
+ error = clib_error_return (0, "Mapping already exist.");
+ goto done;
+ default:
+ break;
+ }
+
+done:
+ unformat_free (line_input);
+ vec_free (locals);
+
+ return error;
+}
+
+VLIB_CLI_COMMAND (add_lb_static_mapping_command, static) = {
+ .path = "nat44 add load-balancing static mapping",
+ .function = add_lb_static_mapping_command_fn,
+ .short_help =
+ "nat44 add load-balancing static mapping protocol tcp|udp external <addr>:<port> local <addr>:<port> probability <n> [vrf <table-id>] [del]",
+};
+
static clib_error_t *
set_workers_command_fn (vlib_main_t * vm,
unformat_input_t * input,
snat_get_worker_in2out_cb (ip4_header_t * ip0, u32 rx_fib_index0)
{
snat_main_t *sm = &snat_main;
- snat_user_key_t key0;
- clib_bihash_kv_8_8_t kv0, value0;
u32 next_worker_index = 0;
+ u32 hash;
- key0.addr = ip0->src_address;
- key0.fib_index = rx_fib_index0;
-
- kv0.key = key0.as_u64;
-
- /* Ever heard of of the "user" before? */
- if (clib_bihash_search_8_8 (&sm->worker_by_in, &kv0, &value0))
- {
- /* No, assign next available worker (RR) */
- next_worker_index = sm->first_worker_index;
- if (vec_len (sm->workers))
- {
- next_worker_index +=
- sm->workers[sm->next_worker++ % _vec_len (sm->workers)];
- }
+ next_worker_index = sm->first_worker_index;
+ hash = ip0->src_address.as_u32 + (ip0->src_address.as_u32 >> 8) +
+ (ip0->src_address.as_u32 >> 16) + (ip0->src_address.as_u32 >>24);
- /* add non-traslated packets worker lookup */
- kv0.value = next_worker_index;
- clib_bihash_add_del_8_8 (&sm->worker_by_in, &kv0, 1);
- }
+ if (PREDICT_TRUE (is_pow2 (_vec_len (sm->workers))))
+ next_worker_index += sm->workers[hash & (_vec_len (sm->workers) - 1)];
else
- next_worker_index = value0.value;
+ next_worker_index += sm->workers[hash % _vec_len (sm->workers)];
return next_worker_index;
}
snat_get_worker_out2in_cb (ip4_header_t * ip0, u32 rx_fib_index0)
{
snat_main_t *sm = &snat_main;
- snat_worker_key_t key0;
- clib_bihash_kv_8_8_t kv0, value0;
- udp_header_t * udp0;
- u32 next_worker_index = 0;
-
- udp0 = ip4_next_header (ip0);
-
- key0.addr = ip0->dst_address;
- key0.port = udp0->dst_port;
- key0.fib_index = rx_fib_index0;
+ 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;
+ nat_ed_ses_key_t key;
+ clib_bihash_kv_16_8_t s_kv, s_value;
+ snat_main_per_thread_data_t *tsm;
+ snat_session_t *s;
+ int i;
+ u32 proto;
- if (PREDICT_FALSE(ip0->protocol == IP_PROTOCOL_ICMP))
+ /* first try static mappings without port */
+ if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
{
- icmp46_header_t * icmp0 = (icmp46_header_t *) udp0;
- icmp_echo_header_t *echo0 = (icmp_echo_header_t *)(icmp0+1);
- key0.port = echo0->identifier;
+ 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;
+ 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->worker_index;
+ }
}
- kv0.key = key0.as_u64;
+ proto = ip_proto_to_snat_proto (ip0->protocol);
+ udp = ip4_next_header (ip0);
+ port = udp->dst_port;
- /* Ever heard of of the "user" before? */
- if (clib_bihash_search_8_8 (&sm->worker_by_out, &kv0, &value0))
+ /* unknown protocol */
+ if (PREDICT_FALSE (proto == ~0))
{
- key0.port = 0;
- kv0.key = key0.as_u64;
+ key.l_addr = ip0->dst_address;
+ key.r_addr = ip0->src_address;
+ key.fib_index = rx_fib_index0;
+ key.proto = ip0->protocol;
+ key.rsvd = 0;
+ key.l_port = 0;
+ s_kv.key[0] = key.as_u64[0];
+ s_kv.key[1] = key.as_u64[1];
- if (clib_bihash_search_8_8 (&sm->worker_by_out, &kv0, &value0))
+ if (!clib_bihash_search_16_8 (&sm->out2in_ed, &s_kv, &s_value))
{
- /* No, assign next available worker (RR) */
- next_worker_index = sm->first_worker_index;
- if (vec_len (sm->workers))
+ for (i = 0; i < _vec_len (sm->per_thread_data); i++)
{
- next_worker_index +=
- sm->workers[sm->next_worker++ % _vec_len (sm->workers)];
+ tsm = vec_elt_at_index (sm->per_thread_data, i);
+ if (!pool_is_free_index(tsm->sessions, s_value.value))
+ {
+ s = pool_elt_at_index (tsm->sessions, s_value.value);
+ if (s->out2in.addr.as_u32 == ip0->dst_address.as_u32 &&
+ s->out2in.port == ip0->protocol &&
+ snat_is_unk_proto_session (s))
+ return i;
+ }
}
- }
+ }
+
+ /* if no session use current thread */
+ return vlib_get_thread_index ();
+ }
+
+ if (PREDICT_FALSE (ip0->protocol == IP_PROTOCOL_ICMP))
+ {
+ 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;
else
{
- /* Static mapping without port */
- next_worker_index = value0.value;
+ 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);
+ switch (proto)
+ {
+ case SNAT_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:
+ port = ((tcp_udp_header_t*)l4_header)->src_port;
+ break;
+ default:
+ return vlib_get_thread_index ();
+ }
}
+ }
- /* Add to translated packets worker lookup */
- kv0.value = next_worker_index;
- clib_bihash_add_del_8_8 (&sm->worker_by_out, &kv0, 1);
+ /* 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;
+ 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->worker_index;
+ }
}
- else
- next_worker_index = value0.value;
- return next_worker_index;
+ /* worker by outside port */
+ return (u32) ((clib_net_to_host_u16 (port) - 1024) / sm->port_per_thread);
}
static clib_error_t *
u32 static_mapping_memory_size = 64<<20;
u8 static_mapping_only = 0;
u8 static_mapping_connection_tracking = 0;
+ snat_main_per_thread_data_t *tsm;
sm->deterministic = 0;
/* for show commands, etc. */
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->outside_vrf_id = outside_vrf_id;
sm->outside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
- outside_vrf_id);
+ outside_vrf_id,
+ FIB_SOURCE_PLUGIN_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);
+ inside_vrf_id,
+ FIB_SOURCE_PLUGIN_HI);
sm->static_mapping_only = static_mapping_only;
sm->static_mapping_connection_tracking = static_mapping_connection_tracking;
sm->icmp_match_in2out_cb = icmp_match_in2out_slow;
sm->icmp_match_out2in_cb = icmp_match_out2in_slow;
- clib_bihash_init_8_8 (&sm->worker_by_in, "worker-by-in", user_buckets,
- user_memory_size);
-
- clib_bihash_init_8_8 (&sm->worker_by_out, "worker-by-out", user_buckets,
- user_memory_size);
-
- clib_bihash_init_8_8 (&sm->in2out, "in2out", translation_buckets,
- translation_memory_size);
+ vec_foreach (tsm, sm->per_thread_data)
+ {
+ clib_bihash_init_8_8 (&tsm->in2out, "in2out", translation_buckets,
+ translation_memory_size);
- clib_bihash_init_8_8 (&sm->out2in, "out2in", translation_buckets,
- translation_memory_size);
+ clib_bihash_init_8_8 (&tsm->out2in, "out2in", translation_buckets,
+ translation_memory_size);
- clib_bihash_init_8_8 (&sm->user_hash, "users", user_buckets,
- user_memory_size);
+ clib_bihash_init_8_8 (&tsm->user_hash, "users", user_buckets,
+ user_memory_size);
+ }
- clib_bihash_init_16_8 (&sm->in2out_unk_proto, "in2out-unk-proto",
+ clib_bihash_init_16_8 (&sm->in2out_ed, "in2out-ed",
translation_buckets, translation_memory_size);
- clib_bihash_init_16_8 (&sm->out2in_unk_proto, "out2in-unk-proto",
+ clib_bihash_init_16_8 (&sm->out2in_ed, "out2in-ed",
translation_buckets, translation_memory_size);
}
else
u8 * format_snat_key (u8 * s, va_list * args)
{
snat_session_key_t * key = va_arg (*args, snat_session_key_t *);
- char * protocol_string = "unknown";
- static char *protocol_strings[] = {
- "UDP",
- "TCP",
- "ICMP",
- };
-
- if (key->protocol < ARRAY_LEN(protocol_strings))
- protocol_string = protocol_strings[key->protocol];
- s = format (s, "%U proto %s port %d fib %d",
- format_ip4_address, &key->addr, protocol_string,
+ s = format (s, "%U proto %U port %d fib %d",
+ format_ip4_address, &key->addr,
+ format_snat_protocol, key->protocol,
clib_net_to_host_u16 (key->port), key->fib_index);
return s;
}
s = format (s, " i2o %U\n", format_snat_key, &sess->in2out);
s = format (s, " o2i %U\n", format_snat_key, &sess->out2in);
}
+ if (sess->ext_host_addr.as_u32)
+ s = format (s, " external host %U\n",
+ format_ip4_address, &sess->ext_host_addr);
s = format (s, " last heard %.2f\n", sess->last_heard);
s = format (s, " total pkts %d, total bytes %lld\n",
sess->total_pkts, sess->total_bytes);
s = format (s, " static translation\n");
else
s = format (s, " dynamic translation\n");
+ if (sess->flags & SNAT_SESSION_FLAG_LOAD_BALANCING)
+ s = format (s, " load-balancing\n");
return s;
}
u8 * format_snat_static_mapping (u8 * s, va_list * args)
{
snat_static_mapping_t *m = va_arg (*args, snat_static_mapping_t *);
+ nat44_lb_addr_port_t *local;
if (m->addr_only)
s = format (s, "local %U external %U vrf %d",
format_ip4_address, &m->external_addr,
m->vrf_id);
else
- s = format (s, "%U local %U:%d external %U:%d vrf %d",
- format_snat_protocol, m->proto,
- format_ip4_address, &m->local_addr, m->local_port,
- format_ip4_address, &m->external_addr, m->external_port,
- m->vrf_id);
-
+ {
+ if (vec_len (m->locals))
+ {
+ s = format (s, "%U vrf %d external %U:%d",
+ format_snat_protocol, m->proto,
+ m->vrf_id,
+ format_ip4_address, &m->external_addr, m->external_port);
+ vec_foreach (local, m->locals)
+ s = format (s, "\n local %U:%d probability %d\%",
+ format_ip4_address, &local->addr, local->port,
+ local->probability);
+ }
+ else
+ s = format (s, "%U local %U:%d external %U:%d vrf %d",
+ format_snat_protocol, m->proto,
+ format_ip4_address, &m->local_addr, m->local_port,
+ format_ip4_address, &m->external_addr, m->external_port,
+ m->vrf_id);
+ }
return s;
}
({
vlib_cli_output (vm, "%U %s", format_vnet_sw_interface_name, vnm,
vnet_get_sw_interface (vnm, i->sw_if_index),
- i->is_inside ? "in" : "out");
+ (nat_interface_is_inside(i) &&
+ nat_interface_is_outside(i)) ? "in out" :
+ (nat_interface_is_inside(i) ? "in" : "out"));
}));
pool_foreach (i, sm->output_feature_interfaces,
vlib_cli_output (vm, "%U output-feature %s",
format_vnet_sw_interface_name, vnm,
vnet_get_sw_interface (vnm, i->sw_if_index),
- i->is_inside ? "in" : "out");
+ (nat_interface_is_inside(i) &&
+ nat_interface_is_outside(i)) ? "in out" :
+ (nat_interface_is_inside(i) ? "in" : "out"));
}));
if (vec_len (sm->auto_add_sw_if_indices))
if (verbose > 0)
{
- vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->in2out,
- verbose - 1);
- vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->out2in,
+ vlib_cli_output (vm, "%U", format_bihash_16_8, &sm->in2out_ed,
verbose - 1);
- vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->worker_by_in,
- verbose - 1);
- vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->worker_by_out,
+ vlib_cli_output (vm, "%U", format_bihash_16_8, &sm->out2in_ed,
verbose - 1);
vec_foreach_index (j, sm->per_thread_data)
{
vlib_worker_thread_t *w = vlib_worker_threads + j;
vlib_cli_output (vm, "Thread %d (%s at lcore %u):", j, w->name,
w->lcore_id);
+ vlib_cli_output (vm, " %U", format_bihash_8_8, &tsm->in2out,
+ verbose - 1);
+ vlib_cli_output (vm, " %U", format_bihash_8_8, &tsm->out2in,
+ verbose - 1);
vlib_cli_output (vm, " %d list pool elements",
pool_elts (tsm->list_pool));
}
}
}
+
return 0;
}
.function = snat_add_interface_address_command_fn,
};
+int
+nat44_del_session (snat_main_t *sm, ip4_address_t *addr, u16 port,
+ snat_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;
+ snat_user_key_t u_key;
+ snat_user_t *u;
+
+ ip.dst_address.as_u32 = ip.src_address.as_u32 = addr->as_u32;
+ if (sm->num_workers)
+ tsm =
+ vec_elt_at_index (sm->per_thread_data,
+ sm->worker_in2out_cb (&ip, fib_index));
+ 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;
+ t = is_in ? &tsm->in2out : &tsm->out2in;
+ if (!clib_bihash_search_8_8 (t, &kv, &value))
+ {
+ s = pool_elt_at_index (tsm->sessions, value.value);
+ kv.key = s->in2out.as_u64;
+ clib_bihash_add_del_8_8 (&tsm->in2out, &kv, 0);
+ kv.key = s->out2in.as_u64;
+ clib_bihash_add_del_8_8 (&tsm->out2in, &kv, 0);
+ u_key.addr = s->in2out.addr;
+ u_key.fib_index = s->in2out.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);
+ u->nsessions--;
+ }
+ clib_dlist_remove (tsm->list_pool, s->per_user_index);
+ pool_put (tsm->sessions, s);
+ return 0;
+ }
+
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+}
+
+static clib_error_t *
+nat44_del_session_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ snat_main_t *sm = &snat_main;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ int is_in = 0;
+ clib_error_t *error = 0;
+ ip4_address_t addr;
+ u32 port = 0, vrf_id = sm->outside_vrf_id;
+ snat_protocol_t proto;
+ int rv;
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "%U:%u %U", unformat_ip4_address, &addr, &port,
+ unformat_snat_protocol, &proto))
+ ;
+ else if (unformat (line_input, "in"))
+ {
+ is_in = 1;
+ vrf_id = sm->inside_vrf_id;
+ }
+ else if (unformat (line_input, "vrf %u", &vrf_id))
+ ;
+ else
+ {
+ error = clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ rv = nat44_del_session(sm, &addr, port, proto, vrf_id, is_in);
+
+ switch (rv)
+ {
+ case 0:
+ break;
+
+ default:
+ error = clib_error_return (0, "nat44_del_session returned %d", rv);
+ goto done;
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+VLIB_CLI_COMMAND (nat44_del_session_command, static) = {
+ .path = "nat44 del session",
+ .short_help = "nat44 del session in|out <addr>:<port> tcp|udp|icmp [vrf <id>]",
+ .function = nat44_del_session_command_fn,
+};
+
static clib_error_t *
snat_det_map_command_fn (vlib_main_t * vm,
unformat_input_t * input,
snat_main_t *sm = &snat_main;
unformat_input_t _line_input, *line_input = &_line_input;
ip4_address_t out_addr, ext_addr, in_addr;
- u16 out_port, ext_port;
+ u32 out_port, ext_port;
snat_det_map_t * dm;
snat_det_session_t * ses;
snat_det_out_key_t key;
vlib_cli_output (vm, "no match");
else
{
- snat_det_reverse(dm, &ext_addr, out_port, &in_addr);
+ snat_det_reverse(dm, &ext_addr, (u16)out_port, &in_addr);
key.ext_host_addr = out_addr;
- key.ext_host_port = ntohs(ext_port);
- key.out_port = ntohs(out_port);
+ key.ext_host_port = ntohs((u16)ext_port);
+ key.out_port = ntohs((u16)out_port);
ses = snat_det_get_ses_by_out(dm, &out_addr, key.as_u64);
if (!ses)
vlib_cli_output (vm, "no match");
snat_main_t *sm = &snat_main;
unformat_input_t _line_input, *line_input = &_line_input;
ip4_address_t in_addr, ext_addr;
- u16 in_port, ext_port;
+ u32 in_port, ext_port;
snat_det_map_t * dm;
snat_det_session_t * ses;
snat_det_out_key_t key;
else
{
key.ext_host_addr = ext_addr;
- key.ext_host_port = ntohs (ext_port);
- ses = snat_det_find_ses_by_in (dm, &in_addr, ntohs(in_port), key);
+ key.ext_host_port = ntohs ((u16)ext_port);
+ ses = snat_det_find_ses_by_in (dm, &in_addr, ntohs((u16)in_port), key);
if (!ses)
vlib_cli_output (vm, "no match");
else
Code Review / vpp.git / blobdiff