#include <vnet/ip/ip4.h>
#include <vnet/plugin/plugin.h>
#include <nat/nat.h>
+#include <nat/nat_dpo.h>
#include <nat/nat_ipfix_logging.h>
#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 <vnet/fib/fib_table.h>
#include <vnet/fib/ip4_fib.h>
VNET_FEATURE_INIT (ip4_snat_in2out, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-in2out",
- .runs_before = VNET_FEATURES ("nat44-out2in"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
};
VNET_FEATURE_INIT (ip4_snat_out2in, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-out2in",
- .runs_before = VNET_FEATURES ("ip4-lookup"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
+ "ip4-dhcp-client-detect"),
};
VNET_FEATURE_INIT (ip4_nat_classify, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-classify",
- .runs_before = VNET_FEATURES ("ip4-lookup"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
};
VNET_FEATURE_INIT (ip4_snat_det_in2out, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-det-in2out",
- .runs_before = VNET_FEATURES ("nat44-det-out2in"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
};
VNET_FEATURE_INIT (ip4_snat_det_out2in, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-det-out2in",
- .runs_before = VNET_FEATURES ("ip4-lookup"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
+ "ip4-dhcp-client-detect"),
};
VNET_FEATURE_INIT (ip4_nat_det_classify, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-det-classify",
- .runs_before = VNET_FEATURES ("ip4-lookup"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
+};
+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"),
+};
+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",
+ "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_before = VNET_FEATURES ("nat44-out2in-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_before = VNET_FEATURES ("ip4-lookup"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
+ "ip4-dhcp-client-detect"),
};
VNET_FEATURE_INIT (ip4_nat_handoff_classify, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-handoff-classify",
- .runs_before = VNET_FEATURES ("ip4-lookup"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
};
VNET_FEATURE_INIT (ip4_snat_in2out_fast, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-in2out-fast",
- .runs_before = VNET_FEATURES ("nat44-out2in-fast"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
};
VNET_FEATURE_INIT (ip4_snat_out2in_fast, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-out2in-fast",
- .runs_before = VNET_FEATURES ("ip4-lookup"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
+ "ip4-dhcp-client-detect"),
};
VNET_FEATURE_INIT (ip4_snat_hairpin_dst, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-hairpin-dst",
- .runs_before = VNET_FEATURES ("ip4-lookup"),
+ .runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
+};
+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"),
};
/* Hook up output features */
VNET_FEATURE_INIT (ip4_snat_in2out_output, static) = {
.arc_name = "ip4-output",
.node_name = "nat44-in2out-output",
- .runs_before = VNET_FEATURES ("interface-output"),
+ .runs_after = VNET_FEATURES ("acl-plugin-out-ip4-fa"),
};
VNET_FEATURE_INIT (ip4_snat_in2out_output_worker_handoff, static) = {
.arc_name = "ip4-output",
.node_name = "nat44-in2out-output-worker-handoff",
- .runs_before = VNET_FEATURES ("interface-output"),
+ .runs_after = VNET_FEATURES ("acl-plugin-out-ip4-fa"),
};
VNET_FEATURE_INIT (ip4_snat_hairpin_src, static) = {
.arc_name = "ip4-output",
.node_name = "nat44-hairpin-src",
- .runs_before = VNET_FEATURES ("interface-output"),
+ .runs_after = VNET_FEATURES ("acl-plugin-out-ip4-fa"),
+};
+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"),
+};
+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"),
};
/* Hook up ip4-local features */
.node_name = "nat44-hairpinning",
.runs_before = VNET_FEATURES("ip4-local-end-of-arc"),
};
+VNET_FEATURE_INIT (ip4_nat44_ed_hairpinning, static) =
+{
+ .arc_name = "ip4-local",
+ .node_name = "nat44-ed-hairpinning",
+ .runs_before = VNET_FEATURES("ip4-local-end-of-arc"),
+};
/* *INDENT-OFF* */
/* *INDENT-ON* */
vlib_node_registration_t nat44_classify_node;
+vlib_node_registration_t nat44_ed_classify_node;
vlib_node_registration_t nat44_det_classify_node;
vlib_node_registration_t nat44_handoff_classify_node;
clib_bihash_kv_8_8_t kv;
nat_ed_ses_key_t ed_key;
clib_bihash_kv_16_8_t ed_kv;
- int i;
- snat_address_t *a;
snat_main_per_thread_data_t *tsm =
vec_elt_at_index (sm->per_thread_data, thread_index);
- /* Endpoint dependent session lookup tables */
+ if (is_fwd_bypass_session (s))
+ {
+ ed_key.l_addr = s->in2out.addr;
+ ed_key.r_addr = s->ext_host_addr;
+ ed_key.l_port = s->in2out.port;
+ ed_key.r_port = s->ext_host_port;
+ ed_key.proto = snat_proto_to_ip_proto (s->in2out.protocol);
+ 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_log_warn ("in2out_ed key del failed");
+ return;
+ }
+
+ /* session lookup tables */
if (is_ed_session (s))
{
ed_key.l_addr = s->out2in.addr;
}
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 (&sm->out2in_ed, &ed_kv, 0))
- clib_warning ("out2in_ed key del failed");
+ if (clib_bihash_add_del_16_8 (&tsm->out2in_ed, &ed_kv, 0))
+ nat_log_warn ("out2in_ed key del failed");
ed_key.l_addr = s->in2out.addr;
ed_key.fib_index = s->in2out.fib_index;
}
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 (&sm->in2out_ed, &ed_kv, 0))
- clib_warning ("in2out_ed key del failed");
+ if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0))
+ nat_log_warn ("in2out_ed key del failed");
+ }
+ else
+ {
+ kv.key = s->in2out.as_u64;
+ if (clib_bihash_add_del_8_8 (&tsm->in2out, &kv, 0))
+ nat_log_warn ("in2out key del failed");
+ kv.key = s->out2in.as_u64;
+ if (clib_bihash_add_del_8_8 (&tsm->out2in, &kv, 0))
+ nat_log_warn ("out2in key del failed");
}
if (snat_is_unk_proto_session (s))
/* Twice NAT address and port for external host */
if (is_twice_nat_session (s))
{
- for (i = 0; i < vec_len (sm->twice_nat_addresses); i++)
- {
- key.protocol = s->in2out.protocol;
- key.port = s->ext_host_nat_port;
- a = sm->twice_nat_addresses + i;
- if (a->addr.as_u32 == s->ext_host_nat_addr.as_u32)
- {
- snat_free_outside_address_and_port (sm->twice_nat_addresses,
- thread_index, &key, i);
- break;
- }
- }
+ 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 (is_ed_session (s))
- return;
-
- /* Session lookup tables */
- kv.key = s->in2out.as_u64;
- if (clib_bihash_add_del_8_8 (&tsm->in2out, &kv, 0))
- clib_warning ("in2out key del failed");
- kv.key = s->out2in.as_u64;
- if (clib_bihash_add_del_8_8 (&tsm->out2in, &kv, 0))
- clib_warning ("out2in key del failed");
-
if (snat_is_session_static (s))
return;
if (s->outside_address_index != ~0)
snat_free_outside_address_and_port (sm->addresses, thread_index,
- &s->out2in, s->outside_address_index);
+ &s->out2in);
}
snat_user_t *
/* add user */
if (clib_bihash_add_del_8_8 (&tsm->user_hash, &kv, 1))
- clib_warning ("user_hash keay add failed");
+ nat_log_warn ("user_hash keay add failed");
}
else
{
/* Get the session */
s = pool_elt_at_index (tsm->sessions, session_index);
nat_free_session_data (sm, s, thread_index);
+ if (snat_is_session_static(s))
+ u->nstaticsessions--;
+ else
+ u->nsessions--;
s->outside_address_index = ~0;
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
{
return s;
}
+snat_session_t *
+nat_ed_session_alloc (snat_main_t *sm, snat_user_t *u, u32 thread_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;
+
+ if ((u->nsessions + u->nstaticsessions) >= sm->max_translations_per_user)
+ {
+ nat_log_warn ("max translations per user %U", format_ip4_address, &u->addr);
+ snat_ipfix_logging_max_entries_per_user (sm->max_translations_per_user,
+ u->addr.as_u32);
+ return 0;
+ }
+
+ pool_get (tsm->sessions, s);
+ memset (s, 0, sizeof (*s));
+ s->outside_address_index = ~0;
+
+ /* 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);
+
+ return s;
+}
+
+typedef struct {
+ u8 next_in2out;
+} nat44_classify_trace_t;
+
+static u8 * format_nat44_classify_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ nat44_classify_trace_t *t = va_arg (*args, nat44_classify_trace_t *);
+ char *next;
+
+ next = t->next_in2out ? "nat44-in2out" : "nat44-out2in";
+
+ s = format (s, "nat44-classify: next %s", next);
+
+ return s;
+}
+
static inline uword
nat44_classify_node_fn_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_frame_t * frame,
+ int is_ed)
{
u32 n_left_from, * from, * to_next;
nat44_classify_next_t next_index;
snat_main_t *sm = &snat_main;
+ snat_static_mapping_t *m;
+ u32 thread_index = vm->thread_index;
+ snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
{
u32 bi0;
vlib_buffer_t *b0;
- u32 next0 = NAT44_CLASSIFY_NEXT_IN2OUT;
+ u32 next0 = NAT44_CLASSIFY_NEXT_IN2OUT, sw_if_index0, rx_fib_index0;
ip4_header_t *ip0;
snat_address_t *ap;
snat_session_key_t m_key0;
clib_bihash_kv_8_8_t kv0, value0;
+ clib_bihash_kv_16_8_t ed_kv0, ed_value0;
+ udp_header_t *udp0;
/* speculatively enqueue b0 to the current next frame */
bi0 = from[0];
b0 = vlib_get_buffer (vm, bi0);
ip0 = vlib_buffer_get_current (b0);
+ udp0 = ip4_next_header (ip0);
+
+ if (is_ed)
+ {
+ sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
+ rx_fib_index0 =
+ fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
+ sw_if_index0);
+ make_ed_kv (&ed_kv0, &ip0->src_address, &ip0->dst_address,
+ ip0->protocol, rx_fib_index0, udp0->src_port,
+ udp0->dst_port);
+ if (!clib_bihash_search_16_8 (&tsm->in2out_ed, &ed_kv0, &ed_value0))
+ goto enqueue0;
+ }
vec_foreach (ap, sm->addresses)
{
if (ip0->dst_address.as_u32 == ap->addr.as_u32)
{
next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
- break;
+ goto enqueue0;
}
}
m_key0.addr = ip0->dst_address;
m_key0.port = 0;
m_key0.protocol = 0;
- m_key0.fib_index = sm->outside_fib_index;
+ m_key0.fib_index = 0;
kv0.key = m_key0.as_u64;
if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv0, &value0))
{
- next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
+ m = pool_elt_at_index (sm->static_mappings, value0.value);
+ if (m->local_addr.as_u32 != m->external_addr.as_u32)
+ next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
+ goto enqueue0;
+ }
+ m_key0.port = clib_net_to_host_u16 (udp0->dst_port);
+ m_key0.protocol = ip_proto_to_snat_proto (ip0->protocol);
+ kv0.key = m_key0.as_u64;
+ if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv0, &value0))
+ {
+ m = pool_elt_at_index (sm->static_mappings, value0.value);
+ if (m->local_addr.as_u32 != m->external_addr.as_u32)
+ next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
}
}
+
+ enqueue0:
+ if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ nat44_classify_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->next_in2out = next0 == NAT44_CLASSIFY_NEXT_IN2OUT ? 1 : 0;
+ }
+
/* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
to_next, n_left_to_next,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return nat44_classify_node_fn_inline (vm, node, frame);
+ return nat44_classify_node_fn_inline (vm, node, frame, 0);
};
VLIB_REGISTER_NODE (nat44_classify_node) = {
.function = nat44_classify_node_fn,
.name = "nat44-classify",
.vector_size = sizeof (u32),
+ .format_trace = format_nat44_classify_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_next_nodes = NAT44_CLASSIFY_N_NEXT,
.next_nodes = {
VLIB_NODE_FUNCTION_MULTIARCH (nat44_classify_node,
nat44_classify_node_fn);
+static uword
+nat44_ed_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, 1);
+};
+
+VLIB_REGISTER_NODE (nat44_ed_classify_node) = {
+ .function = nat44_ed_classify_node_fn,
+ .name = "nat44-ed-classify",
+ .vector_size = sizeof (u32),
+ .format_trace = format_nat44_classify_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_next_nodes = NAT44_CLASSIFY_N_NEXT,
+ .next_nodes = {
+ [NAT44_CLASSIFY_NEXT_IN2OUT] = "nat44-ed-in2out",
+ [NAT44_CLASSIFY_NEXT_OUT2IN] = "nat44-ed-out2in",
+ },
+};
+
+VLIB_NODE_FUNCTION_MULTIARCH (nat44_ed_classify_node,
+ nat44_ed_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);
+ return nat44_classify_node_fn_inline (vm, node, frame, 0);
};
VLIB_REGISTER_NODE (nat44_det_classify_node) = {
.function = nat44_det_classify_node_fn,
.name = "nat44-det-classify",
.vector_size = sizeof (u32),
+ .format_trace = format_nat44_classify_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_next_nodes = NAT44_CLASSIFY_N_NEXT,
.next_nodes = {
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return nat44_classify_node_fn_inline (vm, node, frame);
+ return nat44_classify_node_fn_inline (vm, node, frame, 0);
};
VLIB_REGISTER_NODE (nat44_handoff_classify_node) = {
.function = nat44_handoff_classify_node_fn,
.name = "nat44-handoff-classify",
.vector_size = sizeof (u32),
+ .format_trace = format_nat44_classify_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_next_nodes = NAT44_CLASSIFY_N_NEXT,
.next_nodes = {
if (is_add)
fib_table_entry_update_one_path(fib_index,
&prefix,
- FIB_SOURCE_PLUGIN_HI,
+ FIB_SOURCE_PLUGIN_LOW,
(FIB_ENTRY_FLAG_CONNECTED |
FIB_ENTRY_FLAG_LOCAL |
FIB_ENTRY_FLAG_EXCLUSIVE),
else
fib_table_entry_delete(fib_index,
&prefix,
- FIB_SOURCE_PLUGIN_HI);
+ FIB_SOURCE_PLUGIN_LOW);
}
-void snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id,
+int snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id,
u8 twice_nat)
{
snat_address_t * ap;
snat_interface_t *i;
vlib_thread_main_t *tm = vlib_get_thread_main ();
+ if (twice_nat && !sm->endpoint_dependent)
+ return VNET_API_ERROR_FEATURE_DISABLED;
+
/* Check if address already exists */
vec_foreach (ap, twice_nat ? sm->twice_nat_addresses : sm->addresses)
{
if (ap->addr.as_u32 == addr->as_u32)
- return;
+ return VNET_API_ERROR_VALUE_EXIST;
}
if (twice_nat)
if (vrf_id != ~0)
ap->fib_index =
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, vrf_id,
- FIB_SOURCE_PLUGIN_HI);
+ FIB_SOURCE_PLUGIN_LOW);
else
ap->fib_index = ~0;
#define _(N, i, n, s) \
#undef _
if (twice_nat)
- return;
+ return 0;
/* Add external address to FIB */
pool_foreach (i, sm->interfaces,
({
- if (nat_interface_is_inside(i))
+ if (nat_interface_is_inside(i) || sm->out2in_dpo)
continue;
snat_add_del_addr_to_fib(addr, 32, i->sw_if_index, 1);
}));
pool_foreach (i, sm->output_feature_interfaces,
({
- if (nat_interface_is_inside(i))
+ if (nat_interface_is_inside(i) || sm->out2in_dpo)
continue;
snat_add_del_addr_to_fib(addr, 32, i->sw_if_index, 1);
break;
}));
+
+ return 0;
}
static int is_snat_address_used_in_static_mapping (snat_main_t *sm,
u32 vrf_id,
snat_protocol_t proto,
int addr_only,
- int is_add)
+ int is_add,
+ u8 * tag)
{
snat_static_map_resolve_t *rp;
rp->proto = proto;
rp->addr_only = addr_only;
rp->is_add = is_add;
+ rp->tag = vec_dup (tag);
}
/**
* @param addr_only If 0 address port and pair mapping, otherwise address only.
* @param sw_if_index External port instead of specific IP address.
* @param is_add If 0 delete static mapping, otherwise add.
- * @param twice_nat If 1 translate external host address and port.
+ * @param twice_nat If value is TWICE_NAT then translate external host address
+ * and port.
+ * If value is TWICE_NAT_SELF then translate external host
+ * address and port whenever external host address equals
+ * local address of internal host.
+ * @param out2in_only If 1 rule match only out2in direction
+ * @param tag - opaque string tag
*
* @returns
*/
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,
- u8 twice_nat)
+ twice_nat_type_t twice_nat, u8 out2in_only,
+ u8 * tag)
{
snat_main_t * sm = &snat_main;
snat_static_mapping_t *m;
snat_interface_t *interface;
int i;
snat_main_per_thread_data_t *tsm;
+ snat_user_key_t u_key;
+ snat_user_t *u;
+ dlist_elt_t * head, * elt;
+ u32 elt_index, head_index;
+ u32 ses_index;
+ u64 user_index;
+ snat_session_t * s;
+ snat_static_map_resolve_t *rp, *rp_match = 0;
+
+ if (!sm->endpoint_dependent)
+ {
+ if (twice_nat || out2in_only)
+ return VNET_API_ERROR_FEATURE_DISABLED;
+ }
/* If the external address is a specific interface address */
if (sw_if_index != ~0)
{
ip4_address_t * first_int_addr;
+ for (i = 0; i < vec_len (sm->to_resolve); i++)
+ {
+ rp = sm->to_resolve + i;
+ if (rp->sw_if_index != sw_if_index ||
+ rp->l_addr.as_u32 != l_addr.as_u32 ||
+ rp->vrf_id != vrf_id || rp->addr_only != addr_only)
+ continue;
+
+ if (!addr_only)
+ {
+ if (rp->l_port != l_port || rp->e_port != e_port || rp->proto != proto)
+ continue;
+ }
+
+ rp_match = rp;
+ break;
+ }
+
/* Might be already set... */
first_int_addr = ip4_interface_first_address
(sm->ip4_main, sw_if_index, 0 /* just want the address*/);
- /* DHCP resolution required? */
- if (first_int_addr == 0)
+ if (is_add)
{
+ if (rp_match)
+ return VNET_API_ERROR_VALUE_EXIST;
+
snat_add_static_mapping_when_resolved
(sm, l_addr, l_port, sw_if_index, e_port, vrf_id, proto,
- addr_only, is_add);
- return 0;
+ addr_only, is_add, tag);
+
+ /* DHCP resolution required? */
+ if (first_int_addr == 0)
+ {
+ return 0;
+ }
+ else
+ {
+ e_addr.as_u32 = first_int_addr->as_u32;
+ /* Identity mapping? */
+ if (l_addr.as_u32 == 0)
+ l_addr.as_u32 = e_addr.as_u32;
+ }
}
- else
+ else
{
- e_addr.as_u32 = first_int_addr->as_u32;
- /* Identity mapping? */
- if (l_addr.as_u32 == 0)
- l_addr.as_u32 = e_addr.as_u32;
+ if (!rp_match)
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+
+ vec_del1 (sm->to_resolve, i);
+
+ if (first_int_addr)
+ {
+ e_addr.as_u32 = first_int_addr->as_u32;
+ /* Identity mapping? */
+ if (l_addr.as_u32 == 0)
+ l_addr.as_u32 = e_addr.as_u32;
+ }
+ else
+ return 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 = sm->outside_fib_index;
+ m_key.fib_index = 0;
kv.key = m_key.as_u64;
if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
m = 0;
vrf_id = sm->inside_vrf_id;
}
+ if (!out2in_only)
+ {
+ 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;
+ if (!clib_bihash_search_8_8 (&sm->static_mapping_by_local, &kv, &value))
+ return VNET_API_ERROR_VALUE_EXIST;
+ }
+
/* Find external address in allocated addresses and reserve port for
address and port pair mapping when dynamic translations enabled */
- if (!addr_only && !(sm->static_mapping_only))
+ if (!(addr_only || sm->static_mapping_only || out2in_only))
{
for (i = 0; i < vec_len (sm->addresses); i++)
{
foreach_snat_protocol
#undef _
default:
- clib_warning("unknown_protocol");
+ nat_log_info ("unknown protocol");
return VNET_API_ERROR_INVALID_VALUE_2;
}
break;
}
}
/* External address must be allocated */
- if (!a)
- return VNET_API_ERROR_NO_SUCH_ENTRY;
+ if (!a && (l_addr.as_u32 != e_addr.as_u32))
+ {
+ if (sw_if_index != ~0)
+ {
+ for (i = 0; i < vec_len (sm->to_resolve); i++)
+ {
+ rp = sm->to_resolve + i;
+ if (rp->addr_only)
+ continue;
+ if (rp->sw_if_index != sw_if_index &&
+ rp->l_addr.as_u32 != l_addr.as_u32 &&
+ rp->vrf_id != vrf_id && rp->l_port != l_port &&
+ rp->e_port != e_port && rp->proto != proto)
+ continue;
+
+ vec_del1 (sm->to_resolve, i);
+ break;
+ }
+ }
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+ }
}
pool_get (sm->static_mappings, m);
memset (m, 0, sizeof (*m));
+ m->tag = vec_dup (tag);
m->local_addr = l_addr;
m->external_addr = e_addr;
m->addr_only = addr_only;
m->vrf_id = vrf_id;
m->fib_index = fib_index;
m->twice_nat = twice_nat;
+ m->out2in_only = out2in_only;
if (!addr_only)
{
m->local_port = l_port;
m->proto = proto;
}
- if (sm->workers)
+ if (sm->num_workers > 1)
{
ip4_header_t ip = {
.src_address = m->local_addr,
};
- m->worker_index = sm->worker_in2out_cb (&ip, m->fib_index);
- tsm = vec_elt_at_index (sm->per_thread_data, m->worker_index);
+ vec_add1 (m->workers, sm->worker_in2out_cb (&ip, m->fib_index));
+ 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.fib_index = m->fib_index;
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);
- if (twice_nat)
- {
- m_key.port = clib_host_to_net_u16 (l_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");
- }
+ 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 = sm->outside_fib_index;
+ m_key.fib_index = 0;
kv.key = m_key.as_u64;
kv.value = m - sm->static_mappings;
clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 1);
- if (twice_nat)
+
+ /* Delete dynamic sessions matching local address (+ local port) */
+ if (!(sm->static_mapping_only))
{
- m_key.port = clib_host_to_net_u16 (e_port);
- kv.key = m_key.as_u64;
- kv.value = ~0ULL;
- if (clib_bihash_add_del_8_8(&tsm->out2in, &kv, 1))
- clib_warning ("out2in key add failed");
- }
+ 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 (&tsm->user_hash, &kv, &value))
+ {
+ user_index = value.value;
+ u = pool_elt_at_index (tsm->users, user_index);
+ if (u->nsessions)
+ {
+ 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 (snat_is_session_static (s))
+ continue;
+
+ if (!addr_only && (clib_net_to_host_u16 (s->in2out.port) != m->local_port))
+ continue;
+
+ nat_free_session_data (sm, s, tsm - sm->per_thread_data);
+ nat44_delete_session (sm, s, tsm - sm->per_thread_data);
+ if (!addr_only && !sm->endpoint_dependent)
+ break;
+ }
+ }
+ }
+ }
}
else
{
if (!m)
- return VNET_API_ERROR_NO_SUCH_ENTRY;
+ {
+ if (sw_if_index != ~0)
+ return 0;
+ else
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+ }
/* Free external address port */
- if (!addr_only && !(sm->static_mapping_only))
+ if (!(addr_only || sm->static_mapping_only || out2in_only))
{
for (i = 0; i < vec_len (sm->addresses); i++)
{
foreach_snat_protocol
#undef _
default:
- clib_warning("unknown_protocol");
+ nat_log_info ("unknown protocol");
return VNET_API_ERROR_INVALID_VALUE_2;
}
break;
}
if (sm->num_workers > 1)
- tsm = vec_elt_at_index (sm->per_thread_data, m->worker_index);
+ 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.protocol = m->proto;
m_key.fib_index = m->fib_index;
kv.key = m_key.as_u64;
- clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 0);
- if (twice_nat)
- {
- m_key.port = clib_host_to_net_u16 (m->local_port);
- kv.key = m_key.as_u64;
- kv.value = ~0ULL;
- if (clib_bihash_add_del_8_8(&tsm->in2out, &kv, 0))
- clib_warning ("in2out key del failed");
- }
+ if (!out2in_only)
+ clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 0);
m_key.addr = m->external_addr;
m_key.port = m->external_port;
- m_key.fib_index = sm->outside_fib_index;
+ m_key.fib_index = 0;
kv.key = m_key.as_u64;
clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 0);
- if (twice_nat)
- {
- 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, 0))
- clib_warning ("in2out key del failed");
- }
/* Delete session(s) for static mapping if exist */
if (!(sm->static_mapping_only) ||
(sm->static_mapping_only && sm->static_mapping_connection_tracking))
{
- snat_user_key_t u_key;
- snat_user_t *u;
- dlist_elt_t * head, * elt;
- u32 elt_index, head_index;
- u32 ses_index;
- u64 user_index;
- snat_session_t * s;
-
u_key.addr = m->local_addr;
u_key.fib_index = m->fib_index;
kv.key = u_key.as_u64;
if (!addr_only)
{
- if ((s->out2in.addr.as_u32 != e_addr.as_u32) &&
+ 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);
- clib_dlist_remove (tsm->list_pool, s->per_user_index);
- pool_put_index (tsm->list_pool, s->per_user_index);
- pool_put (tsm->sessions, s);
- u->nstaticsessions--;
+ nat44_delete_session (sm, s, tsm - sm->per_thread_data);
- if (!addr_only)
+ if (!addr_only && !sm->endpoint_dependent)
break;
}
- if (addr_only)
- {
- pool_put (tsm->users, u);
- clib_bihash_add_del_8_8 (&tsm->user_hash, &kv, 0);
- }
}
}
}
+ vec_free (m->tag);
+ vec_free (m->workers);
/* Delete static mapping from pool */
pool_put (sm->static_mappings, m);
}
/* Add/delete external address to FIB */
pool_foreach (interface, sm->interfaces,
({
- if (nat_interface_is_inside(interface))
+ if (nat_interface_is_inside(interface) || sm->out2in_dpo)
continue;
snat_add_del_addr_to_fib(&e_addr, 32, interface->sw_if_index, is_add);
}));
pool_foreach (interface, sm->output_feature_interfaces,
({
- if (nat_interface_is_inside(interface))
+ if (nat_interface_is_inside(interface) || sm->out2in_dpo)
continue;
snat_add_del_addr_to_fib(&e_addr, 32, interface->sw_if_index, is_add);
}
int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
- snat_protocol_t proto, u32 vrf_id,
+ snat_protocol_t proto,
nat44_lb_addr_port_t *locals, u8 is_add,
- u8 twice_nat)
+ twice_nat_type_t twice_nat, u8 out2in_only,
+ u8 *tag)
{
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, elt_index, head_index, ses_index;
+ 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 = sm->outside_fib_index;
+ m_key.fib_index = 0;
kv.key = m_key.as_u64;
if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
m = 0;
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)
+ if (!(sm->static_mapping_only || out2in_only))
{
for (i = 0; i < vec_len (sm->addresses); i++)
{
foreach_snat_protocol
#undef _
default:
- clib_warning("unknown_protocol");
+ nat_log_info ("unknown protocol");
return VNET_API_ERROR_INVALID_VALUE_2;
}
break;
pool_get (sm->static_mappings, m);
memset (m, 0, sizeof (*m));
+ m->tag = vec_dup (tag);
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->twice_nat = twice_nat;
+ m->out2in_only = out2in_only;
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;
+ m_key.fib_index = 0;
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 ("out2in key add failed");
+ nat_log_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.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);
+ m_key.fib_index = locals[i].fib_index;
+ if (!out2in_only)
+ {
+ 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))
+ if (sm->num_workers > 1)
{
- clib_warning ("in2out key add failed");
- return VNET_API_ERROR_UNSPECIFIED;
+ ip4_header_t ip = {
+ .src_address = locals[i].addr,
+ };
+ bitmap = clib_bitmap_set (
+ bitmap, sm->worker_in2out_cb (&ip, m->fib_index), 1);
}
}
+
+ /* Assign workers */
+ if (sm->num_workers > 1)
+ {
+ clib_bitmap_foreach (i, bitmap,
+ ({
+ vec_add1(m->workers, i);
+ }));
+ }
}
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)
+ if (!(sm->static_mapping_only || out2in_only))
{
for (i = 0; i < vec_len (sm->addresses); i++)
{
foreach_snat_protocol
#undef _
default:
- clib_warning("unknown_protocol");
+ nat_log_info ("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;
+ m_key.fib_index = 0;
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");
+ nat_log_err ("static_mapping_by_external key del failed");
return VNET_API_ERROR_UNSPECIFIED;
}
vec_foreach (local, m->locals)
{
+ fib_table_unlock (local->fib_index, FIB_PROTOCOL_IP4,
+ FIB_SOURCE_PLUGIN_LOW);
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))
+ if (!out2in_only)
{
- clib_warning ("static_mapping_by_local key del failed");
- return VNET_API_ERROR_UNSPECIFIED;
+ m_key.port = local->port;
+ m_key.fib_index = local->fib_index;
+ kv.key = m_key.as_u64;
+ if (clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 0))
+ {
+ nat_log_err ("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))
+ if (sm->num_workers > 1)
{
- clib_warning ("in2out key del failed");
- return VNET_API_ERROR_UNSPECIFIED;
+ ip4_header_t ip = {
+ .src_address = local->addr,
+ };
+ tsm = vec_elt_at_index (sm->per_thread_data,
+ sm->worker_in2out_cb (&ip, m->fib_index));
}
+ else
+ tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
+
/* Delete sessions */
u_key.addr = local->addr;
u_key.fib_index = m->fib_index;
elt = pool_elt_at_index (tsm->list_pool, elt->next);
ses_index = elt->value;
- if ((s->in2out.addr.as_u32 != local->addr.as_u32) &&
+ 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);
- clib_dlist_remove (tsm->list_pool, s->per_user_index);
- pool_put_index (tsm->list_pool, s->per_user_index);
- pool_put (tsm->sessions, s);
- u->nstaticsessions--;
+ nat44_delete_session (sm, s, tsm - sm->per_thread_data);
}
}
}
}
vec_free(m->locals);
+ vec_free(m->tag);
+ vec_free(m->workers);
pool_put (sm->static_mappings, m);
}
snat_address_t *a = 0;
snat_session_t *ses;
u32 *ses_to_be_removed = 0, *ses_index;
- clib_bihash_kv_8_8_t kv, value;
- snat_user_key_t user_key;
- snat_user_t *u;
snat_main_per_thread_data_t *tsm;
snat_static_mapping_t *m;
snat_interface_t *interface;
(void) snat_add_static_mapping (m->local_addr, m->external_addr,
m->local_port, m->external_port,
m->vrf_id, m->addr_only, ~0,
- m->proto, 0, m->twice_nat);
+ m->proto, 0, m->twice_nat,
+ m->out2in_only, m->tag);
}));
}
else
/* Check if address is used in some static mapping */
if (is_snat_address_used_in_static_mapping(sm, addr))
{
- clib_warning ("address used in static mapping");
+ nat_log_notice ("address used in static mapping");
return VNET_API_ERROR_UNSPECIFIED;
}
}
if (a->fib_index != ~0)
fib_table_unlock(a->fib_index, FIB_PROTOCOL_IP4,
- FIB_SOURCE_PLUGIN_HI);
+ FIB_SOURCE_PLUGIN_LOW);
/* Delete sessions using address */
if (a->busy_tcp_ports || a->busy_udp_ports || a->busy_icmp_ports)
{
ses->outside_address_index = ~0;
nat_free_session_data (sm, ses, tsm - sm->per_thread_data);
- clib_dlist_remove (tsm->list_pool, ses->per_user_index);
- pool_put_index (tsm->list_pool, ses->per_user_index);
vec_add1 (ses_to_be_removed, ses - tsm->sessions);
- 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 (&tsm->user_hash, &kv, &value))
- {
- u = pool_elt_at_index (tsm->users, value.value);
- u->nsessions--;
- }
}
}));
vec_foreach (ses_index, ses_to_be_removed)
- pool_put_index (tsm->sessions, ses_index[0]);
+ {
+ 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);
}
/* Delete external address from FIB */
pool_foreach (interface, sm->interfaces,
({
- if (nat_interface_is_inside(interface))
+ if (nat_interface_is_inside(interface) || sm->out2in_dpo)
continue;
snat_add_del_addr_to_fib(&addr, 32, interface->sw_if_index, 0);
}));
pool_foreach (interface, sm->output_feature_interfaces,
({
- if (nat_interface_is_inside(interface))
+ if (nat_interface_is_inside(interface) || sm->out2in_dpo)
continue;
snat_add_del_addr_to_fib(&addr, 32, interface->sw_if_index, 0);
snat_address_t * ap;
snat_static_mapping_t * m;
snat_det_map_t * dm;
+ nat_outside_fib_t *outside_fib;
+ u32 fib_index = fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
+ sw_if_index);
- if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))
+ if (sm->out2in_dpo && !is_inside)
+ return VNET_API_ERROR_UNSUPPORTED;
+
+ pool_foreach (i, sm->output_feature_interfaces,
+ ({
+ if (i->sw_if_index == sw_if_index)
+ return VNET_API_ERROR_VALUE_EXIST;
+ }));
+
+ if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))
feature_name = is_inside ? "nat44-in2out-fast" : "nat44-out2in-fast";
else
{
feature_name = is_inside ? "nat44-in2out-worker-handoff" : "nat44-out2in-worker-handoff";
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";
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, 0);
+ 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, 0);
+ sm->fq_out2in_index = vlib_frame_queue_main_init (sm->out2in_node_index,
+ NAT_FQ_NELTS);
+ if (!is_inside)
+ {
+ vec_foreach (outside_fib, sm->outside_fibs)
+ {
+ if (outside_fib->fib_index == fib_index)
+ {
+ if (is_del)
+ {
+ outside_fib->refcount--;
+ if (!outside_fib->refcount)
+ vec_del1 (sm->outside_fibs, outside_fib - sm->outside_fibs);
+ }
+ else
+ outside_fib->refcount++;
+ goto feature_set;
+ }
+ }
+ if (!is_del)
+ {
+ vec_add2 (sm->outside_fibs, outside_fib, 1);
+ outside_fib->refcount = 1;
+ outside_fib->fib_index = fib_index;
+ }
+ }
+feature_set:
pool_foreach (i, sm->interfaces,
({
if (i->sw_if_index == sw_if_index)
i->flags &= ~NAT_INTERFACE_FLAG_IS_OUTSIDE;
if (sm->num_workers > 1 && !sm->deterministic)
- del_feature_name = "nat44-handoff-classify";
+ {
+ del_feature_name = "nat44-handoff-classify";
+ feature_name = !is_inside ? "nat44-in2out-worker-handoff" :
+ "nat44-out2in-worker-handoff";
+ }
else if (sm->deterministic)
- del_feature_name = "nat44-det-classify";
+ {
+ del_feature_name = "nat44-det-classify";
+ feature_name = !is_inside ? "nat44-det-in2out" :
+ "nat44-det-out2in";
+ }
+ else if (sm->endpoint_dependent)
+ {
+ del_feature_name = "nat44-ed-classify";
+ feature_name = !is_inside ? "nat44-ed-in2out" :
+ "nat44-ed-out2in";
+ }
else
- del_feature_name = "nat44-classify";
+ {
+ del_feature_name = "nat44-classify";
+ feature_name = !is_inside ? "nat44-in2out" : "nat44-out2in";
+ }
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);
+ if (!is_inside)
+ {
+ if (sm->endpoint_dependent)
+ vnet_feature_enable_disable ("ip4-local",
+ "nat44-ed-hairpinning",
+ sw_if_index, 1, 0, 0);
+ else if (!sm->deterministic)
+ vnet_feature_enable_disable ("ip4-local",
+ "nat44-hairpinning",
+ 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);
+ if (is_inside)
+ {
+ if (sm->endpoint_dependent)
+ vnet_feature_enable_disable ("ip4-local",
+ "nat44-ed-hairpinning",
+ sw_if_index, 0, 0, 0);
+ else if (!sm->deterministic)
+ vnet_feature_enable_disable ("ip4-local",
+ "nat44-hairpinning",
+ sw_if_index, 0, 0, 0);
+ }
}
}
else
"nat44-det-out2in";
feature_name = "nat44-det-classify";
}
+ else if (sm->endpoint_dependent)
+ {
+ del_feature_name = !is_inside ? "nat44-ed-in2out" :
+ "nat44-ed-out2in";
+ feature_name = "nat44-ed-classify";
+ }
else
{
del_feature_name = !is_inside ? "nat44-in2out" : "nat44-out2in";
sw_if_index, 0, 0, 0);
vnet_feature_enable_disable ("ip4-unicast", feature_name,
sw_if_index, 1, 0, 0);
+ if (!is_inside)
+ {
+ if (sm->endpoint_dependent)
+ vnet_feature_enable_disable ("ip4-local", "nat44-ed-hairpinning",
+ sw_if_index, 0, 0, 0);
+ else if (!sm->deterministic)
+ vnet_feature_enable_disable ("ip4-local", "nat44-hairpinning",
+ sw_if_index, 0, 0, 0);
+ }
goto set_flags;
}
i->flags = 0;
vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index, 1, 0, 0);
+ if (is_inside && !sm->out2in_dpo)
+ {
+ if (sm->endpoint_dependent)
+ vnet_feature_enable_disable ("ip4-local", "nat44-ed-hairpinning",
+ sw_if_index, 1, 0, 0);
+ else if (!sm->deterministic)
+ vnet_feature_enable_disable ("ip4-local", "nat44-hairpinning",
+ sw_if_index, 1, 0, 0);
+ }
+
set_flags:
if (is_inside)
- i->flags |= NAT_INTERFACE_FLAG_IS_INSIDE;
+ {
+ i->flags |= NAT_INTERFACE_FLAG_IS_INSIDE;
+ return 0;
+ }
else
i->flags |= NAT_INTERFACE_FLAG_IS_OUTSIDE;
/* Add/delete external addresses to FIB */
fib:
- if (is_inside)
- {
- 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);
(sm->static_mapping_only && !(sm->static_mapping_connection_tracking)))
return VNET_API_ERROR_UNSUPPORTED;
+ pool_foreach (i, sm->interfaces,
+ ({
+ if (i->sw_if_index == sw_if_index)
+ return VNET_API_ERROR_VALUE_EXIST;
+ }));
+
if (is_inside)
{
- 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",
- sw_if_index, !is_del, 0, 0);
+ if (sm->endpoint_dependent)
+ {
+ 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",
+ sw_if_index, !is_del, 0, 0);
+ }
+ else
+ {
+ 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",
+ sw_if_index, !is_del, 0, 0);
+ }
goto fq;
}
if (sm->num_workers > 1)
{
- vnet_feature_enable_disable ("ip4-unicast", "nat44-out2in-worker-handoff",
+ vnet_feature_enable_disable ("ip4-unicast",
+ "nat44-out2in-worker-handoff",
sw_if_index, !is_del, 0, 0);
vnet_feature_enable_disable ("ip4-output",
"nat44-in2out-output-worker-handoff",
}
else
{
- vnet_feature_enable_disable ("ip4-unicast", "nat44-out2in", sw_if_index,
- !is_del, 0, 0);
- vnet_feature_enable_disable ("ip4-output", "nat44-in2out-output",
- sw_if_index, !is_del, 0, 0);
+ if (sm->endpoint_dependent)
+ {
+ vnet_feature_enable_disable ("ip4-unicast", "nat44-ed-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
+ {
+ vnet_feature_enable_disable ("ip4-unicast", "nat44-out2in",
+ sw_if_index, !is_del, 0, 0);
+ vnet_feature_enable_disable ("ip4-output", "nat44-in2out-output",
+ sw_if_index, !is_del, 0, 0);
+ }
}
fq:
pool_foreach (m, sm->static_mappings,
({
- if (!(m->addr_only))
+ if (!(m->addr_only) || (m->local_addr.as_u32 == m->external_addr.as_u32))
continue;
snat_add_del_addr_to_fib(&m->external_addr, 32, sw_if_index, !is_del);
clib_bitmap_foreach (i, bitmap,
({
vec_add1(sm->workers, i);
- sm->per_thread_data[i].snat_thread_index = j;
+ sm->per_thread_data[sm->first_worker_index + i].snat_thread_index = j;
j++;
}));
u32 if_address_index,
u32 is_delete);
+static void
+nat_ip4_add_del_addr_only_sm_cb (ip4_main_t * im,
+ uword opaque,
+ u32 sw_if_index,
+ ip4_address_t * address,
+ u32 address_length,
+ u32 if_address_index,
+ u32 is_delete);
+
static int
nat_alloc_addr_and_port_default (snat_address_t * addresses,
u32 fib_index,
uword *bitmap = 0;
u32 i;
ip4_add_del_interface_address_callback_t cb4;
+ vlib_node_t * error_drop_node;
sm->vlib_main = vm;
sm->vnet_main = vnet_get_main();
sm->ip4_lookup_main = lm;
sm->api_main = &api_main;
sm->first_worker_index = 0;
- sm->next_worker = 0;
sm->num_workers = 0;
sm->num_snat_thread = 1;
sm->workers = 0;
sm->icmp_timeout = SNAT_ICMP_TIMEOUT;
sm->alloc_addr_and_port = nat_alloc_addr_and_port_default;
sm->forwarding_enabled = 0;
+ sm->log_class = vlib_log_register_class ("nat", 0);
+ error_drop_node = vlib_get_node_by_name (vm, (u8 *) "error-drop");
+ sm->error_node_index = error_drop_node->index;
p = hash_get_mem (tm->thread_registrations_by_name, "workers");
if (p)
vec_add1 (im->add_del_interface_address_callbacks, cb4);
+ cb4.function = nat_ip4_add_del_addr_only_sm_cb;
+ cb4.function_opaque = 0;
+
+ vec_add1 (im->add_del_interface_address_callbacks, cb4);
+
+ nat_dpo_module_init ();
+
/* Init IPFIX logging */
snat_ipfix_logging_init(vm);
dslite_init(vm);
+ nat66_init();
+
/* Init virtual fragmenentation reassembly */
return nat_reass_init(vm);
}
void snat_free_outside_address_and_port (snat_address_t * addresses,
u32 thread_index,
- snat_session_key_t * k,
- u32 address_index)
+ snat_session_key_t * k)
{
snat_address_t *a;
+ u32 address_index;
u16 port_host_byte_order = clib_net_to_host_u16 (k->port);
+ for (address_index = 0; address_index < vec_len (addresses); address_index++)
+ {
+ if (addresses[address_index].addr.as_u32 == k->addr.as_u32)
+ break;
+ }
+
ASSERT (address_index < vec_len (addresses));
a = addresses + address_index;
foreach_snat_protocol
#undef _
default:
- clib_warning("unknown_protocol");
+ nat_log_info ("unknown protocol");
return;
}
}
* address.
* @param is_addr_only If matched mapping is address only
* @param twice_nat If matched mapping is twice NAT.
+ * @param lb If matched mapping is load-balanced.
*
* @returns 0 if match found otherwise 1.
*/
snat_session_key_t * mapping,
u8 by_external,
u8 *is_addr_only,
- u8 *twice_nat)
+ twice_nat_type_t *twice_nat,
+ u8 *lb)
{
clib_bihash_kv_8_8_t kv, value;
snat_static_mapping_t *m;
clib_bihash_8_8_t *mapping_hash = &sm->static_mapping_by_local;
u32 rand, lo = 0, hi, mid;
+ m_key.fib_index = match.fib_index;
if (by_external)
- mapping_hash = &sm->static_mapping_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;
- m_key.fib_index = match.fib_index;
kv.key = m_key.as_u64;
{
if (vec_len (m->locals))
{
+get_local:
hi = vec_len (m->locals) - 1;
rand = 1 + (random_u32 (&sm->random_seed) % m->locals[hi].prefix);
while (lo < hi)
}
if (!(m->locals[lo].prefix >= rand))
return 1;
+ if (PREDICT_FALSE (sm->num_workers > 1))
+ {
+ ip4_header_t ip = {
+ .src_address = m->locals[lo].addr,
+ };
+ if (sm->worker_in2out_cb (&ip, m->fib_index) != vlib_get_thread_index ())
+ goto get_local;
+ }
mapping->addr = m->locals[lo].addr;
mapping->port = clib_host_to_net_u16 (m->locals[lo].port);
+ mapping->fib_index = m->locals[lo].fib_index;
}
else
{
+ mapping->fib_index = m->fib_index;
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
if (PREDICT_FALSE(twice_nat != 0))
*twice_nat = m->twice_nat;
+ if (PREDICT_FALSE(lb != 0))
+ *lb = vec_len (m->locals) > 0;
+
return 0;
}
foreach_snat_protocol
#undef _
default:
- clib_warning("unknown protocol");
+ nat_log_info ("unknown protocol");
return 1;
}
foreach_snat_protocol
#undef _
default:
- clib_warning ("unknown protocol");
+ nat_log_info ("unknown protocol");
return 1;
}
}
foreach_snat_protocol
#undef _
default:
- clib_warning("unknown protocol");
+ nat_log_info ("unknown protocol");
return 1;
}
return 1;
}
-static clib_error_t *
-add_address_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- unformat_input_t _line_input, *line_input = &_line_input;
- snat_main_t * sm = &snat_main;
- ip4_address_t start_addr, end_addr, this_addr;
- u32 start_host_order, end_host_order;
- u32 vrf_id = ~0;
- int i, count;
- int is_add = 1;
- int rv = 0;
- clib_error_t *error = 0;
- u8 twice_nat = 0;
-
- /* 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",
- unformat_ip4_address, &start_addr,
- unformat_ip4_address, &end_addr))
- ;
- else if (unformat (line_input, "tenant-vrf %u", &vrf_id))
- ;
- else if (unformat (line_input, "%U", unformat_ip4_address, &start_addr))
- end_addr = start_addr;
- else if (unformat (line_input, "twice-nat"))
- twice_nat = 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 (sm->static_mapping_only)
- {
- error = clib_error_return (0, "static mapping only mode");
- goto done;
- }
-
- start_host_order = clib_host_to_net_u32 (start_addr.as_u32);
- end_host_order = clib_host_to_net_u32 (end_addr.as_u32);
-
- if (end_host_order < start_host_order)
- {
- error = clib_error_return (0, "end address less than start address");
- goto done;
- }
-
- count = (end_host_order - start_host_order) + 1;
-
- if (count > 1024)
- clib_warning ("%U - %U, %d addresses...",
- format_ip4_address, &start_addr,
- format_ip4_address, &end_addr,
- count);
-
- this_addr = start_addr;
-
- for (i = 0; i < count; i++)
- {
- if (is_add)
- snat_add_address (sm, &this_addr, vrf_id, twice_nat);
- else
- rv = snat_del_address (sm, this_addr, 0, twice_nat);
-
- switch (rv)
- {
- case VNET_API_ERROR_NO_SUCH_ENTRY:
- error = clib_error_return (0, "S-NAT address not exist.");
- goto done;
- case VNET_API_ERROR_UNSPECIFIED:
- error = clib_error_return (0, "S-NAT address used in static mapping.");
- goto done;
- default:
- break;
- }
-
- increment_v4_address (&this_addr);
- }
-
-done:
- unformat_free (line_input);
-
- return error;
-}
-
-VLIB_CLI_COMMAND (add_address_command, static) = {
- .path = "nat44 add address",
- .short_help = "nat44 add address <ip4-range-start> [- <ip4-range-end>] "
- "[tenant-vrf <vrf-id>] [twice-nat] [del]",
- .function = add_address_command_fn,
-};
-
-static clib_error_t *
-snat_feature_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+void
+nat44_add_del_address_dpo (ip4_address_t addr, u8 is_add)
{
- unformat_input_t _line_input, *line_input = &_line_input;
- vnet_main_t * vnm = vnet_get_main();
- clib_error_t * error = 0;
- u32 sw_if_index;
- u32 * inside_sw_if_indices = 0;
- u32 * outside_sw_if_indices = 0;
- u8 is_output_feature = 0;
- int is_del = 0;
- int i;
-
- sw_if_index = ~0;
-
- /* 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, "in %U", unformat_vnet_sw_interface,
- vnm, &sw_if_index))
- vec_add1 (inside_sw_if_indices, sw_if_index);
- else if (unformat (line_input, "out %U", unformat_vnet_sw_interface,
- vnm, &sw_if_index))
- vec_add1 (outside_sw_if_indices, sw_if_index);
- else if (unformat (line_input, "output-feature"))
- is_output_feature = 1;
- else if (unformat (line_input, "del"))
- is_del = 1;
- else
- {
- error = clib_error_return (0, "unknown input '%U'",
- format_unformat_error, line_input);
- goto done;
- }
- }
+ dpo_id_t dpo_v4 = DPO_INVALID;
+ fib_prefix_t pfx = {
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_len = 32,
+ .fp_addr.ip4.as_u32 = addr.as_u32,
+ };
- if (vec_len (inside_sw_if_indices))
+ if (is_add)
{
- for (i = 0; i < vec_len(inside_sw_if_indices); i++)
- {
- sw_if_index = inside_sw_if_indices[i];
- if (is_output_feature)
- {
- if (snat_interface_add_del_output_feature (sw_if_index, 1, is_del))
- {
- error = clib_error_return (0, "%s %U failed",
- is_del ? "del" : "add",
- format_vnet_sw_interface_name, vnm,
- vnet_get_sw_interface (vnm,
- sw_if_index));
- goto done;
- }
- }
- else
- {
- if (snat_interface_add_del (sw_if_index, 1, is_del))
- {
- error = clib_error_return (0, "%s %U failed",
- is_del ? "del" : "add",
- format_vnet_sw_interface_name, vnm,
- vnet_get_sw_interface (vnm,
- sw_if_index));
- goto done;
- }
- }
- }
+ nat_dpo_create (DPO_PROTO_IP4, 0, &dpo_v4);
+ fib_table_entry_special_dpo_add (0, &pfx, FIB_SOURCE_PLUGIN_HI,
+ FIB_ENTRY_FLAG_EXCLUSIVE, &dpo_v4);
+ dpo_reset (&dpo_v4);
}
-
- if (vec_len (outside_sw_if_indices))
+ else
{
- for (i = 0; i < vec_len(outside_sw_if_indices); i++)
- {
- sw_if_index = outside_sw_if_indices[i];
- if (is_output_feature)
- {
- if (snat_interface_add_del_output_feature (sw_if_index, 0, is_del))
- {
- error = clib_error_return (0, "%s %U failed",
- is_del ? "del" : "add",
- format_vnet_sw_interface_name, vnm,
- vnet_get_sw_interface (vnm,
- sw_if_index));
- goto done;
- }
- }
- else
- {
- if (snat_interface_add_del (sw_if_index, 0, is_del))
- {
- error = clib_error_return (0, "%s %U failed",
- is_del ? "del" : "add",
- format_vnet_sw_interface_name, vnm,
- vnet_get_sw_interface (vnm,
- sw_if_index));
- goto done;
- }
- }
- }
+ fib_table_entry_special_remove (0, &pfx, FIB_SOURCE_PLUGIN_HI);
}
-
-done:
- unformat_free (line_input);
- vec_free (inside_sw_if_indices);
- vec_free (outside_sw_if_indices);
-
- return error;
}
-VLIB_CLI_COMMAND (set_interface_snat_command, static) = {
- .path = "set interface nat44",
- .function = snat_feature_command_fn,
- .short_help = "set interface nat44 in <intfc> out <intfc> [output-feature] "
- "[del]",
-};
-
uword
unformat_snat_protocol (unformat_input_t * input, va_list * args)
{
return s;
}
-static clib_error_t *
-add_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;
- int is_add = 1;
- int addr_only = 1;
- u32 sw_if_index = ~0;
- vnet_main_t * vnm = vnet_get_main();
- int rv;
- snat_protocol_t proto = ~0;
- u8 proto_set = 0;
- u8 twice_nat = 0;
-
- /* Get a line of input. */
- if (!unformat_user (input, unformat_line_input, line_input))
- return 0;
+u8 * format_snat_key (u8 * s, va_list * args);
+u8 * format_static_mapping_key (u8 * s, va_list * args);
- while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (line_input, "local %U %u", unformat_ip4_address, &l_addr,
- &l_port))
- addr_only = 0;
- else if (unformat (line_input, "local %U", unformat_ip4_address, &l_addr))
- ;
- else if (unformat (line_input, "external %U %u", unformat_ip4_address,
- &e_addr, &e_port))
- addr_only = 0;
- else if (unformat (line_input, "external %U", unformat_ip4_address,
- &e_addr))
- ;
- else if (unformat (line_input, "external %U %u",
- unformat_vnet_sw_interface, vnm, &sw_if_index,
- &e_port))
- addr_only = 0;
+u8 *
+format_session_kvp (u8 * s, va_list * args)
+{
+ clib_bihash_kv_8_8_t *v = va_arg (*args, clib_bihash_kv_8_8_t *);
+ snat_session_key_t k;
- else if (unformat (line_input, "external %U",
- unformat_vnet_sw_interface, vnm, &sw_if_index))
- ;
- else if (unformat (line_input, "vrf %u", &vrf_id))
- ;
- else if (unformat (line_input, "%U", unformat_snat_protocol, &proto))
- proto_set = 1;
- else if (unformat (line_input, "twice-nat"))
- twice_nat = 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;
- }
- }
+ k.as_u64 = v->key;
- if (twice_nat && addr_only)
- {
- error = clib_error_return (0, "twice NAT only for 1:1 NAPT");
- goto done;
- }
+ s = format (s, "%U session-index %llu", format_snat_key, &k, v->value);
- if (!addr_only && !proto_set)
- {
- error = clib_error_return (0, "missing protocol");
- goto done;
- }
+ return s;
+}
- rv = snat_add_static_mapping(l_addr, e_addr, (u16) l_port, (u16) e_port,
- vrf_id, addr_only, sw_if_index, proto, is_add,
- twice_nat);
+u8 *
+format_static_mapping_kvp (u8 * s, va_list * args)
+{
+ clib_bihash_kv_8_8_t *v = va_arg (*args, clib_bihash_kv_8_8_t *);
+ snat_session_key_t k;
- 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_NO_SUCH_FIB:
- error = clib_error_return (0, "No such VRF id.");
- goto done;
- case VNET_API_ERROR_VALUE_EXIST:
- error = clib_error_return (0, "Mapping already exist.");
- goto done;
- default:
- break;
- }
+ k.as_u64 = v->key;
-done:
- unformat_free (line_input);
+ s = format (s, "%U static-mapping-index %llu",
+ format_static_mapping_key, &k, v->value);
- return error;
+ return s;
}
-/*?
- * @cliexpar
- * @cliexstart{snat add static mapping}
- * Static mapping allows hosts on the external network to initiate connection
- * to to the local network host.
- * To create static mapping between local host address 10.0.0.3 port 6303 and
- * external address 4.4.4.4 port 3606 for TCP protocol use:
- * vpp# nat44 add static mapping tcp local 10.0.0.3 6303 external 4.4.4.4 3606
- * If not runnig "static mapping only" NAT plugin mode use before:
- * vpp# nat44 add address 4.4.4.4
- * To create static mapping between local and external address use:
- * vpp# nat44 add static mapping local 10.0.0.3 external 4.4.4.4
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (add_static_mapping_command, static) = {
- .path = "nat44 add static mapping",
- .function = add_static_mapping_command_fn,
- .short_help =
- "nat44 add static mapping tcp|udp|icmp local <addr> [<port>] "
- "external <addr> [<port>] [vrf <table-id>] [twice-nat] [del]",
-};
-
-static clib_error_t *
-add_identity_mapping_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+u8 *
+format_user_kvp (u8 * s, va_list * args)
{
- unformat_input_t _line_input, *line_input = &_line_input;
- clib_error_t * error = 0;
- ip4_address_t addr;
- u32 port = 0, vrf_id = ~0;
- int is_add = 1;
- int addr_only = 1;
- u32 sw_if_index = ~0;
- vnet_main_t * vnm = vnet_get_main();
- int rv;
- snat_protocol_t proto;
+ clib_bihash_kv_8_8_t *v = va_arg (*args, clib_bihash_kv_8_8_t *);
+ snat_user_key_t k;
- addr.as_u32 = 0;
+ k.as_u64 = v->key;
- /* Get a line of input. */
- if (!unformat_user (input, unformat_line_input, line_input))
- return 0;
+ s = format (s, "%U fib %d user-index %llu", format_ip4_address, &k.addr,
+ k.fib_index, v->value);
- while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (line_input, "%U", unformat_ip4_address, &addr))
- ;
- else if (unformat (line_input, "external %U",
- unformat_vnet_sw_interface, vnm, &sw_if_index))
- ;
- else if (unformat (line_input, "vrf %u", &vrf_id))
- ;
- else if (unformat (line_input, "%U %u", unformat_snat_protocol, &proto,
- &port))
- addr_only = 0;
- 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;
- }
- }
+ return s;
+}
- rv = snat_add_static_mapping(addr, addr, (u16) port, (u16) port,
- vrf_id, addr_only, sw_if_index, proto, is_add,
- 0);
+u8 *
+format_ed_session_kvp (u8 * s, va_list * args)
+{
+ clib_bihash_kv_16_8_t *v = va_arg (*args, clib_bihash_kv_16_8_t *);
+ nat_ed_ses_key_t k;
- 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_NO_SUCH_FIB:
- error = clib_error_return (0, "No such VRF id.");
- goto done;
- case VNET_API_ERROR_VALUE_EXIST:
- error = clib_error_return (0, "Mapping already exist.");
- goto done;
- default:
- break;
- }
+ k.as_u64[0] = v->key[0];
+ k.as_u64[1] = v->key[1];
-done:
- unformat_free (line_input);
+ 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);
- return error;
+ return s;
}
-/*?
- * @cliexpar
- * @cliexstart{snat add identity mapping}
- * Identity mapping translate an IP address to itself.
- * To create identity mapping for address 10.0.0.3 port 6303 for TCP protocol
- * use:
- * vpp# nat44 add identity mapping 10.0.0.3 tcp 6303
- * To create identity mapping for address 10.0.0.3 use:
- * vpp# nat44 add identity mapping 10.0.0.3
- * To create identity mapping for DHCP addressed interface use:
- * vpp# nat44 add identity mapping GigabitEthernet0/a/0 tcp 3606
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (add_identity_mapping_command, static) = {
- .path = "nat44 add identity mapping",
- .function = add_identity_mapping_command_fn,
- .short_help = "nat44 add identity mapping <interface>|<ip4-addr> "
- "[<protocol> <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)
+static u32
+snat_get_worker_in2out_cb (ip4_header_t * ip0, u32 rx_fib_index0)
{
- 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;
- u8 twice_nat = 0;
-
- /* Get a line of input. */
- if (!unformat_user (input, unformat_line_input, line_input))
- return 0;
+ snat_main_t *sm = &snat_main;
+ u32 next_worker_index = 0;
+ u32 hash;
- 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, "twice-nat"))
- twice_nat = 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, twice_nat);
-
- 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> [twice-nat] "
- "[vrf <table-id>] [del]",
-};
-
-static clib_error_t *
-set_workers_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- unformat_input_t _line_input, *line_input = &_line_input;
- uword *bitmap = 0;
- int rv = 0;
- clib_error_t *error = 0;
-
- /* 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", unformat_bitmap_list, &bitmap))
- ;
- else
- {
- error = clib_error_return (0, "unknown input '%U'",
- format_unformat_error, line_input);
- goto done;
- }
- }
-
- if (bitmap == 0)
- {
- error = clib_error_return (0, "List of workers must be specified.");
- goto done;
- }
-
- rv = snat_set_workers(bitmap);
-
- clib_bitmap_free (bitmap);
-
- switch (rv)
- {
- case VNET_API_ERROR_INVALID_WORKER:
- error = clib_error_return (0, "Invalid worker(s).");
- goto done;
- case VNET_API_ERROR_FEATURE_DISABLED:
- error = clib_error_return (0,
- "Supported only if 2 or more workes available.");
- goto done;
- default:
- break;
- }
-
-done:
- unformat_free (line_input);
-
- return error;
-}
-
-/*?
- * @cliexpar
- * @cliexstart{set snat workers}
- * Set NAT workers if 2 or more workers available, use:
- * vpp# set snat workers 0-2,5
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (set_workers_command, static) = {
- .path = "set nat workers",
- .function = set_workers_command_fn,
- .short_help =
- "set nat workers <workers-list>",
-};
-
-static clib_error_t *
-snat_ipfix_logging_enable_disable_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- unformat_input_t _line_input, *line_input = &_line_input;
- u32 domain_id = 0;
- u32 src_port = 0;
- u8 enable = 1;
- int rv = 0;
- clib_error_t *error = 0;
-
- /* 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, "domain %d", &domain_id))
- ;
- else if (unformat (line_input, "src-port %d", &src_port))
- ;
- else if (unformat (line_input, "disable"))
- enable = 0;
- else
- {
- error = clib_error_return (0, "unknown input '%U'",
- format_unformat_error, line_input);
- goto done;
- }
- }
-
- rv = snat_ipfix_logging_enable_disable (enable, domain_id, (u16) src_port);
-
- if (rv)
- {
- error = clib_error_return (0, "ipfix logging enable failed");
- goto done;
- }
-
-done:
- unformat_free (line_input);
-
- return error;
-}
-
-/*?
- * @cliexpar
- * @cliexstart{snat ipfix logging}
- * To enable NAT IPFIX logging use:
- * vpp# nat ipfix logging
- * To set IPFIX exporter use:
- * vpp# set ipfix exporter collector 10.10.10.3 src 10.10.10.1
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (snat_ipfix_logging_enable_disable_command, static) = {
- .path = "nat ipfix logging",
- .function = snat_ipfix_logging_enable_disable_command_fn,
- .short_help = "nat ipfix logging [domain <domain-id>] [src-port <port>] [disable]",
-};
-
-static u32
-snat_get_worker_in2out_cb (ip4_header_t * ip0, u32 rx_fib_index0)
-{
- snat_main_t *sm = &snat_main;
- u32 next_worker_index = 0;
- u32 hash;
-
- 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);
+ 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);
if (PREDICT_TRUE (is_pow2 (_vec_len (sm->workers))))
next_worker_index += sm->workers[hash & (_vec_len (sm->workers) - 1)];
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;
+ u32 next_worker_index = 0;
/* first try static mappings without port */
if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
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;
+ return m->workers[0];
}
}
/* unknown protocol */
if (PREDICT_FALSE (proto == ~0))
{
- key.l_addr = ip0->dst_address;
- key.r_addr = ip0->src_address;
- key.fib_index = rx_fib_index0;
- key.proto = ip0->protocol;
- key.r_port = 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_16_8 (&sm->out2in_ed, &s_kv, &s_value))
- {
- for (i = 0; i < _vec_len (sm->per_thread_data); i++)
- {
- 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 */
+ /* use current thread */
return vlib_get_thread_index ();
}
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;
+ return m->workers[0];
+ }
+ }
+
+ /* worker by outside port */
+ next_worker_index = sm->first_worker_index;
+ next_worker_index +=
+ sm->workers[(clib_net_to_host_u16 (port) - 1024) / sm->port_per_thread];
+ return next_worker_index;
+}
+
+static u32
+nat44_ed_get_worker_out2in_cb (ip4_header_t * ip, u32 rx_fib_index)
+{
+ snat_main_t *sm = &snat_main;
+ clib_bihash_kv_8_8_t kv, value;
+ u32 proto, next_worker_index = 0;
+ udp_header_t *udp;
+ u16 port;
+ snat_static_mapping_t *m;
+ u32 hash;
+
+ /* first try static mappings without port */
+ if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
+ {
+ make_sm_kv (&kv, &ip->dst_address, 0, rx_fib_index, 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];
+ }
+ }
+
+ proto = ip_proto_to_snat_proto (ip->protocol);
+
+ /* unknown protocol */
+ if (PREDICT_FALSE (proto == ~0))
+ {
+ /* use current thread */
+ return vlib_get_thread_index ();
+ }
+
+ udp = ip4_next_header (ip);
+ port = udp->dst_port;
+
+ if (PREDICT_FALSE (ip->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
+ {
+ 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 ();
+ }
+ }
+ }
+
+ /* try static mappings with port */
+ if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
+ {
+ make_sm_kv (&kv, &ip->dst_address, proto, rx_fib_index,
+ clib_net_to_host_u16 (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 (!vec_len(m->locals))
+ return m->workers[0];
+
+ 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)];
+ else
+ return m->workers[hash % _vec_len (m->workers)];
}
}
/* worker by outside port */
- return (u32) ((clib_net_to_host_u16 (port) - 1024) / sm->port_per_thread);
+ next_worker_index = sm->first_worker_index;
+ next_worker_index +=
+ sm->workers[(clib_net_to_host_u16 (port) - 1024) / sm->port_per_thread];
+
+ return next_worker_index;
}
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;
u32 static_mapping_buckets = 1024;
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;
+ dslite_main_t * dm = &dslite_main;
sm->deterministic = 0;
+ sm->out2in_dpo = 0;
+ sm->endpoint_dependent = 0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
else if (unformat (input, "outside VRF id %d",
&outside_vrf_id))
;
+ else if (unformat (input, "outside ip6 VRF id %d",
+ &outside_ip6_vrf_id))
+ ;
else if (unformat (input, "inside VRF id %d",
&inside_vrf_id))
;
else if (unformat (input, "nat64 st hash memory %d",
&nat64_st_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
return clib_error_return (0, "unknown input '%U'",
format_unformat_error, input);
}
+ if (sm->deterministic && sm->endpoint_dependent)
+ return clib_error_return (
+ 0, "deterministic and endpoint-dependent modes are mutually exclusive");
+
+ if (static_mapping_only && (sm->deterministic || sm->endpoint_dependent))
+ return clib_error_return (
+ 0, "static mapping only mode available only for simple nat");
+
+ if (sm->out2in_dpo && (sm->deterministic || sm->endpoint_dependent))
+ return clib_error_return (
+ 0, "out2in dpo mode available only for simple nat");
+
/* for show commands, etc. */
sm->translation_buckets = translation_buckets;
sm->translation_memory_size = translation_memory_size;
sm->outside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
outside_vrf_id,
FIB_SOURCE_PLUGIN_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);
sm->inside_vrf_id = inside_vrf_id;
sm->inside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
inside_vrf_id,
}
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;
- if (!static_mapping_only ||
- (static_mapping_only && static_mapping_connection_tracking))
+ if (sm->endpoint_dependent)
+ {
+ sm->worker_in2out_cb = snat_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;
+ }
+ 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;
-
+ }
+ if (!static_mapping_only ||
+ (static_mapping_only && static_mapping_connection_tracking))
+ {
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 (&tsm->out2in, "out2in", translation_buckets,
- translation_memory_size);
+ 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);
}
- clib_bihash_init_16_8 (&sm->in2out_ed, "in2out-ed",
- translation_buckets, translation_memory_size);
-
- clib_bihash_init_16_8 (&sm->out2in_ed, "out2in-ed",
- translation_buckets, translation_memory_size);
}
else
{
clib_bihash_init_8_8 (&sm->static_mapping_by_local,
"static_mapping_by_local", static_mapping_buckets,
static_mapping_memory_size);
+ clib_bihash_set_kvp_format_fn_8_8 (&sm->static_mapping_by_local,
+ format_static_mapping_kvp);
clib_bihash_init_8_8 (&sm->static_mapping_by_external,
"static_mapping_by_external", static_mapping_buckets,
static_mapping_memory_size);
+ clib_bihash_set_kvp_format_fn_8_8 (&sm->static_mapping_by_external,
+ format_static_mapping_kvp);
}
return 0;
return s;
}
+u8 * format_static_mapping_key (u8 * s, va_list * args)
+{
+ snat_session_key_t * key = va_arg (*args, snat_session_key_t *);
+
+ s = format (s, "%U proto %U port %d fib %d",
+ format_ip4_address, &key->addr,
+ format_snat_protocol, key->protocol,
+ key->port, key->fib_index);
+ return s;
+}
+
u8 * format_snat_session (u8 * s, va_list * args)
{
- snat_main_t * sm __attribute__((unused)) = va_arg (*args, snat_main_t *);
+ snat_main_per_thread_data_t * sm = va_arg (*args, snat_main_per_thread_data_t *);
snat_session_t * sess = va_arg (*args, snat_session_t *);
if (snat_is_unk_proto_session (sess))
s = format (s, " i2o %U\n", format_snat_key, &sess->in2out);
s = format (s, " o2i %U\n", format_snat_key, &sess->out2in);
}
- if (is_twice_nat_session (sess))
- {
- s = format (s, " external host o2i %U:%d i2o %U:%d\n",
- format_ip4_address, &sess->ext_host_addr,
- clib_net_to_host_u16 (sess->ext_host_port),
- format_ip4_address, &sess->ext_host_nat_addr,
- clib_net_to_host_u16 (sess->ext_host_nat_port));
- }
- else
+ if (is_ed_session (sess) || is_fwd_bypass_session (sess))
{
- if (sess->ext_host_addr.as_u32)
- s = format (s, " external host %U\n",
- format_ip4_address, &sess->ext_host_addr);
+ if (is_twice_nat_session (sess))
+ {
+ s = format (s, " external host o2i %U:%d i2o %U:%d\n",
+ format_ip4_address, &sess->ext_host_addr,
+ clib_net_to_host_u16 (sess->ext_host_port),
+ format_ip4_address, &sess->ext_host_nat_addr,
+ clib_net_to_host_u16 (sess->ext_host_nat_port));
+ }
+ else
+ {
+ if (sess->ext_host_addr.as_u32)
+ s = format (s, " external host %U:%u\n",
+ format_ip4_address, &sess->ext_host_addr,
+ clib_net_to_host_u16 (sess->ext_host_port));
+ }
}
+ s = format (s, " index %llu\n", sess - sm->sessions);
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)
+ if (is_fwd_bypass_session (sess))
+ s = format (s, " forwarding-bypass\n");
+ if (is_lb_session (sess))
s = format (s, " load-balancing\n");
if (is_twice_nat_session (sess))
s = format (s, " twice-nat\n");
nat44_lb_addr_port_t *local;
if (m->addr_only)
- s = format (s, "local %U external %U vrf %d %s",
+ s = format (s, "local %U external %U vrf %d %s %s",
format_ip4_address, &m->local_addr,
format_ip4_address, &m->external_addr,
- m->vrf_id, m->twice_nat ? "twice-nat" : "");
+ m->vrf_id,
+ m->twice_nat == TWICE_NAT ? "twice-nat" :
+ m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "",
+ m->out2in_only ? "out2in-only" : "");
else
{
if (vec_len (m->locals))
{
- s = format (s, "%U vrf %d external %U:%d %s",
+ s = format (s, "%U external %U:%d %s %s",
format_snat_protocol, m->proto,
- m->vrf_id,
format_ip4_address, &m->external_addr, m->external_port,
- m->twice_nat ? "twice-nat" : "");
+ m->twice_nat == TWICE_NAT ? "twice-nat" :
+ m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "",
+ m->out2in_only ? "out2in-only" : "");
vec_foreach (local, m->locals)
- s = format (s, "\n local %U:%d probability %d\%",
+ s = format (s, "\n local %U:%d vrf %d probability %d\%",
format_ip4_address, &local->addr, local->port,
- local->probability);
+ local->vrf_id, local->probability);
}
else
- s = format (s, "%U local %U:%d external %U:%d vrf %d %s",
+ s = format (s, "%U local %U:%d external %U:%d vrf %d %s %s",
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, m->twice_nat ? "twice-nat" : "");
+ m->vrf_id,
+ m->twice_nat == TWICE_NAT ? "twice-nat" :
+ m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "",
+ m->out2in_only ? "out2in-only" : "");
}
return s;
}
if (m->addr_only)
s = format (s, "local %U external %U vrf %d",
format_ip4_address, &m->l_addr,
- format_vnet_sw_interface_name, vnm,
- vnet_get_sw_interface (vnm, m->sw_if_index),
+ format_vnet_sw_if_index_name, vnm, m->sw_if_index,
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->l_addr, m->l_port,
- format_vnet_sw_interface_name, vnm,
- vnet_get_sw_interface (vnm, m->sw_if_index), m->e_port,
- m->vrf_id);
+ format_vnet_sw_if_index_name, vnm, m->sw_if_index,
+ m->e_port, m->vrf_id);
return s;
}
return s;
}
-static clib_error_t *
-show_snat_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+static void
+nat_ip4_add_del_addr_only_sm_cb (ip4_main_t * im,
+ uword opaque,
+ u32 sw_if_index,
+ ip4_address_t * address,
+ u32 address_length,
+ u32 if_address_index,
+ u32 is_delete)
{
- int verbose = 0;
- snat_main_t * sm = &snat_main;
- snat_user_t * u;
- snat_static_mapping_t *m;
- snat_interface_t *i;
- snat_address_t * ap;
- vnet_main_t *vnm = vnet_get_main();
- snat_main_per_thread_data_t *tsm;
- u32 users_num = 0, sessions_num = 0, *worker, *sw_if_index;
- uword j = 0;
+ snat_main_t *sm = &snat_main;
snat_static_map_resolve_t *rp;
- snat_det_map_t * dm;
- snat_det_session_t * ses;
-
- if (unformat (input, "detail"))
- verbose = 1;
- else if (unformat (input, "verbose"))
- verbose = 2;
+ 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;
- if (sm->static_mapping_only)
+ for (i = 0; i < vec_len (sm->to_resolve); i++)
{
- if (sm->static_mapping_connection_tracking)
- vlib_cli_output (vm, "NAT plugin mode: static mapping only connection "
- "tracking");
- else
- vlib_cli_output (vm, "NAT plugin mode: static mapping only");
+ rp = sm->to_resolve + i;
+ if (rp->addr_only == 0)
+ continue;
+ if (rp->sw_if_index == sw_if_index)
+ goto match;
}
- else if (sm->deterministic)
+
+ 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;
+ 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_delete)
{
- vlib_cli_output (vm, "NAT plugin mode: deterministic mapping");
+ /* Don't trip over lease renewal, static config */
+ if (m)
+ return;
}
else
{
- vlib_cli_output (vm, "NAT plugin mode: dynamic translations enabled");
+ if (!m)
+ return;
}
- if (verbose > 0)
- {
- pool_foreach (i, sm->interfaces,
- ({
- vlib_cli_output (vm, "%U %s", format_vnet_sw_interface_name, vnm,
- vnet_get_sw_interface (vnm, i->sw_if_index),
- (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),
- (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))
- {
- vlib_cli_output (vm, "NAT44 pool addresses interfaces:");
- vec_foreach (sw_if_index, sm->auto_add_sw_if_indices)
- {
- vlib_cli_output (vm, "%U", format_vnet_sw_interface_name, vnm,
- vnet_get_sw_interface (vnm, *sw_if_index));
- }
- }
-
- if (vec_len (sm->auto_add_sw_if_indices_twice_nat))
- {
- vlib_cli_output (vm, "NAT44 twice-nat pool addresses interfaces:");
- vec_foreach (sw_if_index, sm->auto_add_sw_if_indices_twice_nat)
- {
- vlib_cli_output (vm, "%U", format_vnet_sw_interface_name, vnm,
- vnet_get_sw_interface (vnm, *sw_if_index));
- }
- }
-
- vlib_cli_output (vm, "NAT44 pool addresses:");
- vec_foreach (ap, sm->addresses)
- {
- vlib_cli_output (vm, "%U", format_ip4_address, &ap->addr);
- if (ap->fib_index != ~0)
- vlib_cli_output (vm, " tenant VRF: %u",
- ip4_fib_get(ap->fib_index)->table_id);
- else
- vlib_cli_output (vm, " tenant VRF independent");
-#define _(N, i, n, s) \
- vlib_cli_output (vm, " %d busy %s ports", ap->busy_##n##_ports, s);
- foreach_snat_protocol
-#undef _
- }
-
- vlib_cli_output (vm, "NAT44 twice-nat pool addresses:");
- vec_foreach (ap, sm->twice_nat_addresses)
- {
- vlib_cli_output (vm, "%U", format_ip4_address, &ap->addr);
- if (ap->fib_index != ~0)
- vlib_cli_output (vm, " tenant VRF: %u",
- ip4_fib_get(ap->fib_index)->table_id);
- else
- vlib_cli_output (vm, " tenant VRF independent");
-#define _(N, i, n, s) \
- vlib_cli_output (vm, " %d busy %s ports", ap->busy_##n##_ports, s);
- foreach_snat_protocol
-#undef _
- }
- }
-
- if (sm->num_workers > 1)
- {
- vlib_cli_output (vm, "%d workers", vec_len (sm->workers));
- if (verbose > 0)
- {
- vec_foreach (worker, sm->workers)
- {
- vlib_worker_thread_t *w =
- vlib_worker_threads + *worker + sm->first_worker_index;
- vlib_cli_output (vm, " %s", w->name);
- }
- }
- }
-
- if (sm->deterministic)
- {
- vlib_cli_output (vm, "udp timeout: %dsec", sm->udp_timeout);
- vlib_cli_output (vm, "tcp-established timeout: %dsec",
- sm->tcp_established_timeout);
- vlib_cli_output (vm, "tcp-transitory timeout: %dsec",
- sm->tcp_transitory_timeout);
- vlib_cli_output (vm, "icmp timeout: %dsec", sm->icmp_timeout);
- vlib_cli_output (vm, "%d deterministic mappings",
- pool_elts (sm->det_maps));
- if (verbose > 0)
- {
- pool_foreach (dm, sm->det_maps,
- ({
- vlib_cli_output (vm, "in %U/%d out %U/%d\n",
- format_ip4_address, &dm->in_addr, dm->in_plen,
- format_ip4_address, &dm->out_addr, dm->out_plen);
- vlib_cli_output (vm, " outside address sharing ratio: %d\n",
- dm->sharing_ratio);
- vlib_cli_output (vm, " number of ports per inside host: %d\n",
- dm->ports_per_host);
- vlib_cli_output (vm, " sessions number: %d\n", dm->ses_num);
- if (verbose > 1)
- {
- vec_foreach_index (j, dm->sessions)
- {
- ses = vec_elt_at_index (dm->sessions, j);
- if (ses->in_port)
- vlib_cli_output (vm, " %U", format_det_map_ses, dm, ses,
- &j);
- }
- }
- }));
- }
- }
- else
- {
- if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))
- {
- vlib_cli_output (vm, "%d static mappings",
- pool_elts (sm->static_mappings));
-
- if (verbose > 0)
- {
- pool_foreach (m, sm->static_mappings,
- ({
- vlib_cli_output (vm, "%U", format_snat_static_mapping, m);
- }));
- }
- }
- else
- {
- vec_foreach (tsm, sm->per_thread_data)
- {
- users_num += pool_elts (tsm->users);
- sessions_num += pool_elts (tsm->sessions);
- }
-
- vlib_cli_output (vm, "%d users, %d outside addresses, %d active sessions,"
- " %d static mappings, %d twice-nat addresses",
- users_num,
- vec_len (sm->addresses),
- sessions_num,
- pool_elts (sm->static_mappings),
- vec_len (sm->twice_nat_addresses));
-
- if (verbose > 0)
- {
- vlib_cli_output (vm, "%U", format_bihash_16_8, &sm->in2out_ed,
- verbose - 1);
- vlib_cli_output (vm, "%U", format_bihash_16_8, &sm->out2in_ed,
- verbose - 1);
- vec_foreach_index (j, sm->per_thread_data)
- {
- tsm = vec_elt_at_index (sm->per_thread_data, j);
-
- if (pool_elts (tsm->users) == 0)
- continue;
-
- 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));
-
- pool_foreach (u, tsm->users,
- ({
- vlib_cli_output (vm, " %U", format_snat_user, tsm, u,
- verbose - 1);
- }));
- }
-
- if (pool_elts (sm->static_mappings))
- {
- vlib_cli_output (vm, "static mappings:");
- pool_foreach (m, sm->static_mappings,
- ({
- vlib_cli_output (vm, "%U", format_snat_static_mapping, m);
- }));
- for (j = 0; j < vec_len (sm->to_resolve); j++)
- {
- rp = sm->to_resolve + j;
- vlib_cli_output (vm, "%U",
- format_snat_static_map_to_resolve, rp);
- }
- }
- }
- }
- }
-
- return 0;
-}
-
-VLIB_CLI_COMMAND (show_snat_command, static) = {
- .path = "show nat44",
- .short_help = "show nat44",
- .function = show_snat_command_fn,
-};
-
+ /* Indetity mapping? */
+ if (rp->l_addr.as_u32 == 0)
+ l_addr.as_u32 = address[0].as_u32;
+ else
+ l_addr.as_u32 = rp->l_addr.as_u32;
+ /* Add the static mapping */
+ rv = snat_add_static_mapping (l_addr,
+ address[0],
+ rp->l_port,
+ rp->e_port,
+ rp->vrf_id,
+ rp->addr_only,
+ ~0 /* sw_if_index */,
+ rp->proto,
+ !is_delete,
+ 0, 0, rp->tag);
+ if (rv)
+ nat_log_notice ("snat_add_static_mapping returned %d", rv);
+}
static void
snat_ip4_add_del_interface_address_cb (ip4_main_t * im,
{
snat_main_t *sm = &snat_main;
snat_static_map_resolve_t *rp;
- u32 *indices_to_delete = 0;
ip4_address_t l_addr;
int i, j;
int rv;
if (addresses[j].addr.as_u32 == address->as_u32)
return;
- snat_add_address (sm, address, ~0, twice_nat);
+ (void) snat_add_address (sm, address, ~0, twice_nat);
/* Scan static map resolution vector */
for (j = 0; j < vec_len (sm->to_resolve); j++)
{
rp = sm->to_resolve + j;
+ if (rp->addr_only)
+ continue;
/* On this interface? */
if (rp->sw_if_index == sw_if_index)
{
~0 /* sw_if_index */,
rp->proto,
rp->is_add,
- 0);
+ 0, 0, rp->tag);
if (rv)
- clib_warning ("snat_add_static_mapping returned %d",
- rv);
- vec_add1 (indices_to_delete, j);
+ nat_log_notice ("snat_add_static_mapping returned %d", rv);
}
}
- /* If we resolved any of the outstanding static mappings */
- if (vec_len(indices_to_delete))
- {
- /* Delete them */
- for (j = vec_len(indices_to_delete)-1; j >= 0; j--)
- vec_delete(sm->to_resolve, 1, j);
- vec_free(indices_to_delete);
- }
return;
}
else
/* If the address is already bound - or static - add it now */
if (first_int_addr)
- snat_add_address (sm, first_int_addr, ~0, twice_nat);
+ (void) snat_add_address (sm, first_int_addr, ~0, twice_nat);
return 0;
}
-static clib_error_t *
-snat_add_interface_address_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;
- u32 sw_if_index;
- int rv;
- int is_del = 0;
- clib_error_t *error = 0;
- u8 twice_nat = 0;
-
- /* 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", unformat_vnet_sw_interface,
- sm->vnet_main, &sw_if_index))
- ;
- else if (unformat (line_input, "twice-nat"))
- twice_nat = 1;
- else if (unformat (line_input, "del"))
- is_del = 1;
- else
- {
- error = clib_error_return (0, "unknown input '%U'",
- format_unformat_error, line_input);
- goto done;
- }
- }
-
- rv = snat_add_interface_address (sm, sw_if_index, is_del, twice_nat);
-
- switch (rv)
- {
- case 0:
- break;
-
- default:
- error = clib_error_return (0, "snat_add_interface_address returned %d",
- rv);
- goto done;
- }
-
-done:
- unformat_free (line_input);
-
- return error;
-}
-
-VLIB_CLI_COMMAND (snat_add_interface_address_command, static) = {
- .path = "nat44 add interface address",
- .short_help = "nat44 add interface address <interface> [twice-nat] [del]",
- .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_session_key_t key;
snat_session_t *s;
clib_bihash_8_8_t *t;
- snat_user_key_t u_key;
- snat_user_t *u;
+
+ if (sm->endpoint_dependent)
+ return VNET_API_ERROR_UNSUPPORTED;
ip.dst_address.as_u32 = ip.src_address.as_u32 = addr->as_u32;
- if (sm->num_workers)
+ if (sm->num_workers > 1)
tsm =
vec_elt_at_index (sm->per_thread_data,
sm->worker_in2out_cb (&ip, fib_index));
t = is_in ? &tsm->in2out : &tsm->out2in;
if (!clib_bihash_search_8_8 (t, &kv, &value))
{
+ if (pool_is_free_index (tsm->sessions, value.value))
+ return VNET_API_ERROR_UNSPECIFIED;
+
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);
+ nat_free_session_data (sm, s, tsm - sm->per_thread_data);
+ nat44_delete_session (sm, s, tsm - sm->per_thread_data);
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 *
-nat44_set_alloc_addr_and_port_alg_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;
- clib_error_t *error = 0;
- u32 psid, psid_offset, psid_length;
-
- /* 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, "default"))
- sm->alloc_addr_and_port = nat_alloc_addr_and_port_default;
- else if (unformat (line_input, "map-e psid %d psid-offset %d psid-len %d",
- &psid, &psid_offset, &psid_length))
- {
- sm->alloc_addr_and_port = nat_alloc_addr_and_port_mape;
- sm->psid = (u16) psid;
- sm->psid_offset = (u16) psid_offset;
- sm->psid_length = (u16) psid_length;
- }
- else
- {
- error = clib_error_return (0, "unknown input '%U'",
- format_unformat_error, line_input);
- goto done;
- }
- }
-
-done:
- unformat_free (line_input);
-
- return error;
-};
-
-VLIB_CLI_COMMAND (nat44_set_alloc_addr_and_port_alg_command, static) = {
- .path = "nat addr-port-assignment-alg",
- .short_help = "nat addr-port-assignment-alg <alg-name> [<alg-params>]",
- .function = nat44_set_alloc_addr_and_port_alg_command_fn,
-};
-
-static clib_error_t *
-snat_det_map_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;
- ip4_address_t in_addr, out_addr;
- u32 in_plen, out_plen;
- int is_add = 1, rv;
- clib_error_t *error = 0;
-
- /* 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, "in %U/%u", unformat_ip4_address, &in_addr, &in_plen))
- ;
- else if (unformat (line_input, "out %U/%u", unformat_ip4_address, &out_addr, &out_plen))
- ;
- 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;
- }
- }
-
- rv = snat_det_add_map(sm, &in_addr, (u8) in_plen, &out_addr, (u8)out_plen,
- is_add);
-
- if (rv)
- {
- error = clib_error_return (0, "snat_det_add_map return %d", rv);
- goto done;
- }
-
-done:
- unformat_free (line_input);
-
- return error;
-}
-
-/*?
- * @cliexpar
- * @cliexstart{snat deterministic add}
- * Create bijective mapping of inside address to outside address and port range
- * pairs, with the purpose of enabling deterministic NAT to reduce logging in
- * CGN deployments.
- * To create deterministic mapping between inside network 10.0.0.0/18 and
- * outside network 1.1.1.0/30 use:
- * # vpp# nat44 deterministic add in 10.0.0.0/18 out 1.1.1.0/30
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (snat_det_map_command, static) = {
- .path = "nat44 deterministic add",
- .short_help = "nat44 deterministic add in <addr>/<plen> out <addr>/<plen> [del]",
- .function = snat_det_map_command_fn,
-};
-
-static clib_error_t *
-snat_det_forward_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;
- ip4_address_t in_addr, out_addr;
- u16 lo_port;
- snat_det_map_t * dm;
- clib_error_t *error = 0;
-
- /* 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", unformat_ip4_address, &in_addr))
- ;
- else
- {
- error = clib_error_return (0, "unknown input '%U'",
- format_unformat_error, line_input);
- goto done;
- }
- }
-
- dm = snat_det_map_by_user(sm, &in_addr);
- if (!dm)
- vlib_cli_output (vm, "no match");
- else
- {
- snat_det_forward (dm, &in_addr, &out_addr, &lo_port);
- vlib_cli_output (vm, "%U:<%d-%d>", format_ip4_address, &out_addr,
- lo_port, lo_port + dm->ports_per_host - 1);
- }
-
-done:
- unformat_free (line_input);
-
- return error;
-}
-
-/*?
- * @cliexpar
- * @cliexstart{snat deterministic forward}
- * Return outside address and port range from inside address for deterministic
- * NAT.
- * To obtain outside address and port of inside host use:
- * vpp# nat44 deterministic forward 10.0.0.2
- * 1.1.1.0:<1054-1068>
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (snat_det_forward_command, static) = {
- .path = "nat44 deterministic forward",
- .short_help = "nat44 deterministic forward <addr>",
- .function = snat_det_forward_command_fn,
-};
-
-static clib_error_t *
-snat_det_reverse_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;
- ip4_address_t in_addr, out_addr;
- u32 out_port;
- snat_det_map_t * dm;
- clib_error_t *error = 0;
-
- /* 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:%d", unformat_ip4_address, &out_addr, &out_port))
- ;
- else
- {
- error = clib_error_return (0, "unknown input '%U'",
- format_unformat_error, line_input);
- }
- }
-
- if (out_port < 1024 || out_port > 65535)
- {
- error = clib_error_return (0, "wrong port, must be <1024-65535>");
- goto done;
- }
-
- dm = snat_det_map_by_out(sm, &out_addr);
- if (!dm)
- vlib_cli_output (vm, "no match");
- else
- {
- snat_det_reverse (dm, &out_addr, (u16) out_port, &in_addr);
- vlib_cli_output (vm, "%U", format_ip4_address, &in_addr);
- }
-
-done:
- unformat_free (line_input);
-
- return error;
-}
-
-/*?
- * @cliexpar
- * @cliexstart{snat deterministic reverse}
- * Return inside address from outside address and port for deterministic NAT.
- * To obtain inside host address from outside address and port use:
- * #vpp nat44 deterministic reverse 1.1.1.1:1276
- * 10.0.16.16
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (snat_det_reverse_command, static) = {
- .path = "nat44 deterministic reverse",
- .short_help = "nat44 deterministic reverse <addr>:<port>",
- .function = snat_det_reverse_command_fn,
-};
-
-static clib_error_t *
-set_timeout_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;
- clib_error_t *error = 0;
-
- /* 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, "udp %u", &sm->udp_timeout))
- ;
- else if (unformat (line_input, "tcp-established %u",
- &sm->tcp_established_timeout))
- ;
- else if (unformat (line_input, "tcp-transitory %u",
- &sm->tcp_transitory_timeout))
- ;
- else if (unformat (line_input, "icmp %u", &sm->icmp_timeout))
- ;
- else if (unformat (line_input, "reset"))
- {
- 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;
- }
- else
- {
- error = clib_error_return (0, "unknown input '%U'",
- format_unformat_error, line_input);
- goto done;
- }
- }
-
-done:
- unformat_free (line_input);
-
- return error;
-}
-
-/*?
- * @cliexpar
- * @cliexstart{set snat deterministic timeout}
- * Set values of timeouts for deterministic NAT (in seconds), use:
- * vpp# set nat44 deterministic timeout udp 120 tcp-established 7500
- * tcp-transitory 250 icmp 90
- * To reset default values use:
- * vpp# set nat44 deterministic timeout reset
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (set_timeout_command, static) = {
- .path = "set nat44 deterministic timeout",
- .function = set_timeout_command_fn,
- .short_help =
- "set nat44 deterministic timeout [udp <sec> | tcp-established <sec> "
- "tcp-transitory <sec> | icmp <sec> | reset]",
-};
-
-static clib_error_t *
-snat_det_close_session_out_fn (vlib_main_t *vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+int
+nat44_del_ed_session (snat_main_t *sm, ip4_address_t *addr, u16 port,
+ ip4_address_t *eh_addr, u16 eh_port, u8 proto,
+ u32 vrf_id, int is_in)
{
- snat_main_t *sm = &snat_main;
- unformat_input_t _line_input, *line_input = &_line_input;
- ip4_address_t out_addr, ext_addr, in_addr;
- u32 out_port, ext_port;
- snat_det_map_t * dm;
- snat_det_session_t * ses;
- snat_det_out_key_t key;
- clib_error_t *error = 0;
-
- /* 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:%d %U:%d",
- unformat_ip4_address, &out_addr, &out_port,
- unformat_ip4_address, &ext_addr, &ext_port))
- ;
- else
- {
- error = clib_error_return (0, "unknown input '%U'",
- format_unformat_error, line_input);
- goto done;
- }
- }
+ 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;
+ snat_main_per_thread_data_t *tsm;
- unformat_free (line_input);
+ if (!sm->endpoint_dependent)
+ return VNET_API_ERROR_FEATURE_DISABLED;
- dm = snat_det_map_by_out(sm, &out_addr);
- if (!dm)
- vlib_cli_output (vm, "no match");
+ ip.dst_address.as_u32 = ip.src_address.as_u32 = addr->as_u32;
+ if (sm->num_workers > 1)
+ tsm =
+ vec_elt_at_index (sm->per_thread_data,
+ sm->worker_in2out_cb (&ip, fib_index));
else
- {
- snat_det_reverse(dm, &ext_addr, (u16)out_port, &in_addr);
- key.ext_host_addr = out_addr;
- 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");
- else
- snat_det_ses_close(dm, ses);
- }
+ tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
-done:
- unformat_free (line_input);
+ 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 = clib_host_to_net_u32 (fib_index);
+ kv.key[0] = key.as_u64[0];
+ kv.key[1] = key.as_u64[1];
+ if (clib_bihash_search_16_8 (t, &kv, &value))
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
- return error;
+ 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);
+ nat44_delete_session (sm, s, tsm - sm->per_thread_data);
+ return 0;
}
-/*?
- * @cliexpar
- * @cliexstart{snat deterministic close session out}
- * Close session using outside ip address and port
- * and external ip address and port, use:
- * vpp# nat44 deterministic close session out 1.1.1.1:1276 2.2.2.2:2387
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (snat_det_close_sesion_out_command, static) = {
- .path = "nat44 deterministic close session out",
- .short_help = "nat44 deterministic close session out "
- "<out_addr>:<out_port> <ext_addr>:<ext_port>",
- .function = snat_det_close_session_out_fn,
-};
-
-static clib_error_t *
-snat_det_close_session_in_fn (vlib_main_t *vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+void
+nat_set_alloc_addr_and_port_mape (u16 psid, u16 psid_offset, u16 psid_length)
{
snat_main_t *sm = &snat_main;
- unformat_input_t _line_input, *line_input = &_line_input;
- ip4_address_t in_addr, ext_addr;
- u32 in_port, ext_port;
- snat_det_map_t * dm;
- snat_det_session_t * ses;
- snat_det_out_key_t key;
- clib_error_t *error = 0;
- /* 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:%d %U:%d",
- unformat_ip4_address, &in_addr, &in_port,
- unformat_ip4_address, &ext_addr, &ext_port))
- ;
- else
- {
- error = clib_error_return (0, "unknown input '%U'",
- format_unformat_error, line_input);
- goto done;
- }
- }
-
- unformat_free (line_input);
-
- dm = snat_det_map_by_user (sm, &in_addr);
- if (!dm)
- vlib_cli_output (vm, "no match");
- else
- {
- key.ext_host_addr = ext_addr;
- 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
- snat_det_ses_close(dm, ses);
- }
-
-done:
- unformat_free(line_input);
-
- return error;
+ sm->alloc_addr_and_port = nat_alloc_addr_and_port_mape;
+ sm->psid = psid;
+ sm->psid_offset = psid_offset;
+ sm->psid_length = psid_length;
}
-/*?
- * @cliexpar
- * @cliexstart{snat deterministic close_session_in}
- * Close session using inside ip address and port
- * and external ip address and port, use:
- * vpp# nat44 deterministic close session in 3.3.3.3:3487 2.2.2.2:2387
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (snat_det_close_session_in_command, static) = {
- .path = "nat44 deterministic close session in",
- .short_help = "nat44 deterministic close session in "
- "<in_addr>:<in_port> <ext_addr>:<ext_port>",
- .function = snat_det_close_session_in_fn,
-};
-
-static clib_error_t *
-snat_forwarding_set_command_fn (vlib_main_t *vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+void
+nat_set_alloc_addr_and_port_default (void)
{
snat_main_t *sm = &snat_main;
- unformat_input_t _line_input, *line_input = &_line_input;
- u8 forwarding_enable;
- u8 forwarding_enable_set = 0;
- clib_error_t *error = 0;
-
- /* Get a line of input. */
- if (!unformat_user (input, unformat_line_input, line_input))
- return clib_error_return (0, "'enable' or 'disable' expected");
-
- while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
- {
- if (!forwarding_enable_set && unformat (line_input, "enable"))
- {
- forwarding_enable = 1;
- forwarding_enable_set = 1;
- }
- else if (!forwarding_enable_set && unformat (line_input, "disable"))
- {
- forwarding_enable = 0;
- forwarding_enable_set = 1;
- }
- else
- {
- error = clib_error_return (0, "unknown input '%U'",
- format_unformat_error, line_input);
- goto done;
- }
- }
-
- if (!forwarding_enable_set)
- {
- error = clib_error_return (0, "'enable' or 'disable' expected");
- goto done;
- }
-
- sm->forwarding_enabled = forwarding_enable;
-
-done:
- unformat_free(line_input);
- return error;
+ sm->alloc_addr_and_port = nat_alloc_addr_and_port_default;
}
-/*?
- * @cliexpar
- * @cliexstart{nat44 forwarding}
- * Enable or disable forwarding
- * Forward packets which don't match existing translation
- * or static mapping instead of dropping them.
- * To enable forwarding, use:
- * vpp# nat44 forwarding enable
- * To disable forwarding, use:
- * vpp# nat44 forwarding disable
- * @cliexend
-?*/
-VLIB_CLI_COMMAND (snat_forwarding_set_command, static) = {
- .path = "nat44 forwarding",
- .short_help = "nat44 forwarding enable|disable",
- .function = snat_forwarding_set_command_fn,
-};
Code Review / vpp.git / blobdiff