/*
- * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Copyright (c) 2020 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-/**
- * @file
- * @brief NAT64 implementation
- */
-#include <nat/nat64.h>
-#include <nat/nat64_db.h>
-#include <nat/nat_inlines.h>
-#include <vnet/fib/ip4_fib.h>
#include <vppinfra/crc32.h>
+#include <vnet/fib/ip4_fib.h>
+
#include <vnet/ip/reass/ip4_sv_reass.h>
#include <vnet/ip/reass/ip6_sv_reass.h>
+#include <vnet/plugin/plugin.h>
+#include <vpp/app/version.h>
+#include <nat/nat64/nat64.h>
nat64_main_t nat64_main;
/* *INDENT-OFF* */
-
/* Hook up input features */
VNET_FEATURE_INIT (nat64_in2out, static) = {
.arc_name = "ip6-unicast",
.runs_before = VNET_FEATURES ("ip4-lookup"),
.runs_after = VNET_FEATURES ("ip4-sv-reassembly-feature"),
};
-
-
+VLIB_PLUGIN_REGISTER () = {
+ .version = VPP_BUILD_VER,
+ .description = "NAT64",
+};
static u8 well_known_prefix[] = {
0x00, 0x64, 0xff, 0x9b,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
};
-
/* *INDENT-ON* */
+#define nat_elog_str(_str) \
+do \
+ { \
+ ELOG_TYPE_DECLARE (e) = \
+ { \
+ .format = "nat-msg " _str, \
+ .format_args = "", \
+ }; \
+ ELOG_DATA (&vlib_global_main.elog_main, e); \
+ } while (0);
+
static void
nat64_ip4_add_del_interface_address_cb (ip4_main_t * im, uword opaque,
u32 sw_if_index,
nat64_main_t *nm = &nat64_main;
int i, j;
+ if (plugin_enabled () == 0)
+ return;
+
for (i = 0; i < vec_len (nm->auto_add_sw_if_indices); i++)
{
if (sw_if_index == nm->auto_add_sw_if_indices[i])
nat64_get_worker_in2out (ip6_address_t * addr)
{
nat64_main_t *nm = &nat64_main;
- snat_main_t *sm = nm->sm;
- u32 next_worker_index = nm->sm->first_worker_index;
+ u32 next_worker_index = nm->first_worker_index;
u32 hash;
#ifdef clib_crc32c_uses_intrinsics
hash = clib_xxhash (tmp);
#endif
- if (PREDICT_TRUE (is_pow2 (_vec_len (sm->workers))))
- next_worker_index += sm->workers[hash & (_vec_len (sm->workers) - 1)];
+ if (PREDICT_TRUE (is_pow2 (_vec_len (nm->workers))))
+ next_worker_index += nm->workers[hash & (_vec_len (nm->workers) - 1)];
else
- next_worker_index += sm->workers[hash % _vec_len (sm->workers)];
+ next_worker_index += nm->workers[hash % _vec_len (nm->workers)];
return next_worker_index;
}
nat64_get_worker_out2in (vlib_buffer_t * b, ip4_header_t * ip)
{
nat64_main_t *nm = &nat64_main;
- snat_main_t *sm = nm->sm;
udp_header_t *udp;
u16 port;
u32 proto;
/* worker by outside port (TCP/UDP) */
port = clib_net_to_host_u16 (port);
if (port > 1024)
- return nm->sm->first_worker_index + ((port - 1024) / sm->port_per_thread);
+ return nm->first_worker_index + ((port - 1024) / nm->port_per_thread);
return vlib_get_thread_index ();
}
nat64_main_t *nm = &nat64_main;
vlib_thread_main_t *tm = vlib_get_thread_main ();
ip4_add_del_interface_address_callback_t cb4;
- ip4_main_t *im = &ip4_main;
- nm->sm = &snat_main;
vlib_node_t *node;
- vec_validate (nm->db, tm->n_vlib_mains - 1);
+ clib_memset (nm, 0, sizeof (*nm));
+
+ nm->ip4_main = &ip4_main;
+ nm->log_class = vlib_log_register_class ("nat64", 0);
+
+ nm->port_per_thread = 0xffff - 1024;
nm->fq_in2out_index = ~0;
nm->fq_out2in_index = ~0;
node = vlib_get_node_by_name (vm, (u8 *) "error-drop");
nm->error_node_index = node->index;
-
node = vlib_get_node_by_name (vm, (u8 *) "nat64-in2out");
nm->in2out_node_index = node->index;
-
node = vlib_get_node_by_name (vm, (u8 *) "nat64-in2out-slowpath");
nm->in2out_slowpath_node_index = node->index;
-
node = vlib_get_node_by_name (vm, (u8 *) "nat64-out2in");
nm->out2in_node_index = node->index;
- /* set session timeouts to default values */
- nm->udp_timeout = SNAT_UDP_TIMEOUT;
- nm->icmp_timeout = SNAT_ICMP_TIMEOUT;
- nm->tcp_trans_timeout = SNAT_TCP_TRANSITORY_TIMEOUT;
- nm->tcp_est_timeout = SNAT_TCP_ESTABLISHED_TIMEOUT;
+ node = vlib_get_node_by_name (vm, (u8 *) "nat64-expire-worker-walk");
+ nm->expire_worker_walk_node_index = node->index;
+
+ nm->fib_src_hi = fib_source_allocate ("nat64-hi",
+ FIB_SOURCE_PRIORITY_HI,
+ FIB_SOURCE_BH_SIMPLE);
+ nm->fib_src_low = fib_source_allocate ("nat64-low",
+ FIB_SOURCE_PRIORITY_LOW,
+ FIB_SOURCE_BH_SIMPLE);
- nm->total_enabled_count = 0;
+ // set protocol timeouts to defaults
+ nat64_reset_timeouts ();
/* Set up the interface address add/del callback */
cb4.function = nat64_ip4_add_del_interface_address_cb;
cb4.function_opaque = 0;
- vec_add1 (im->add_del_interface_address_callbacks, cb4);
- nm->ip4_main = im;
+ vec_add1 (nm->ip4_main->add_del_interface_address_callbacks, cb4);
/* Init counters */
nm->total_bibs.name = "total-bibs";
vlib_validate_simple_counter (&nm->total_sessions, 0);
vlib_zero_simple_counter (&nm->total_sessions, 0);
+ uword *p = hash_get_mem (tm->thread_registrations_by_name, "workers");
+ if (p)
+ {
+ vlib_thread_registration_t *tr;
+ tr = (vlib_thread_registration_t *) p[0];
+ if (tr)
+ {
+ nm->num_workers = tr->count;
+ nm->first_worker_index = tr->first_index;
+ }
+ }
+
+ if (nm->num_workers > 1)
+ {
+ int i;
+ uword *bitmap = 0;
+
+ for (i = 0; i < nm->num_workers; i++)
+ bitmap = clib_bitmap_set (bitmap, i, 1);
+
+ /* *INDENT-OFF* */
+ clib_bitmap_foreach (i, bitmap,
+ ({
+ vec_add1(nm->workers, i);
+ }));
+ /* *INDENT-ON* */
+
+ clib_bitmap_free (bitmap);
+
+ nm->port_per_thread = (0xffff - 1024) / _vec_len (nm->workers);
+ }
+
+ // TODO: ipfix needs to be separated from NAT base plugin
+ /* Init IPFIX logging */
+ //snat_ipfix_logging_init (vm);
+
#define _(x) \
nm->counters.in2out.x.name = #x; \
nm->counters.in2out.x.stat_segment_name = "/nat64/in2out/" #x; \
nm->counters.out2in.x.stat_segment_name = "/nat64/out2in/" #x;
foreach_nat_counter;
#undef _
- return 0;
+ return nat64_api_hookup (vm);
}
+VLIB_INIT_FUNCTION (nat64_init);
+
static void nat64_free_out_addr_and_port (struct nat64_db_s *db,
ip4_address_t * addr, u16 port,
u8 protocol);
-void
-nat64_set_hash (u32 bib_buckets, uword bib_memory_size, u32 st_buckets,
- uword st_memory_size)
+int
+nat64_init_hash (nat64_config_t c)
{
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
nat64_main_t *nm = &nat64_main;
nat64_db_t *db;
+ int rv = 0;
+
+ vec_validate (nm->db, tm->n_vlib_mains - 1);
+
+ /* *INDENT-OFF* */
+ vec_foreach (db, nm->db)
+ {
+ if (nat64_db_init (db, c, nat64_free_out_addr_and_port))
+ {
+ nat64_log_err ("NAT64 DB init failed");
+ rv = 1;
+ }
+ }
+ /* *INDENT-ON* */
+
+ return rv;
+}
- nm->bib_buckets = bib_buckets;
- nm->bib_memory_size = bib_memory_size;
- nm->st_buckets = st_buckets;
- nm->st_memory_size = st_memory_size;
+int
+nat64_free_hash ()
+{
+ nat64_main_t *nm = &nat64_main;
+ nat64_db_t *db;
+ int rv = 0;
/* *INDENT-OFF* */
vec_foreach (db, nm->db)
{
- if (nat64_db_init (db, bib_buckets, bib_memory_size, st_buckets,
- st_memory_size, nat64_free_out_addr_and_port))
- nat_elog_err ("NAT64 DB init failed");
+ if (nat64_db_free (db))
+ {
+ nat64_log_err ("NAT64 DB free failed");
+ rv = 1;
+ }
}
/* *INDENT-ON* */
+
+ vec_free (nm->db);
+
+ return rv;
}
int
ip4_address_t * addr, u32 vrf_id, u8 is_add)
{
nat64_main_t *nm = &nat64_main;
- snat_address_t *a = 0;
- snat_interface_t *interface;
+ nat64_address_t *a = 0;
+ nat64_interface_t *interface;
int i;
nat64_db_t *db;
vlib_thread_main_t *tm = vlib_get_thread_main ();
if (vrf_id != ~0)
a->fib_index =
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, vrf_id,
- nat_fib_src_hi);
+ nm->fib_src_hi);
#define _(N, id, n, s) \
clib_memset (a->busy_##n##_port_refcounts, 0, sizeof(a->busy_##n##_port_refcounts)); \
a->busy_##n##_ports = 0; \
return VNET_API_ERROR_NO_SUCH_ENTRY;
if (a->fib_index != ~0)
- fib_table_unlock (a->fib_index, FIB_PROTOCOL_IP6, nat_fib_src_hi);
+ fib_table_unlock (a->fib_index, FIB_PROTOCOL_IP6, nm->fib_src_hi);
/* Delete sessions using address */
- /* *INDENT-OFF* */
- vec_foreach (db, nm->db)
- {
- nat64_db_free_out_addr (thread_index, db, &a->addr);
- vlib_set_simple_counter (&nm->total_bibs, db - nm->db, 0,
- db->bib.bib_entries_num);
- vlib_set_simple_counter (&nm->total_sessions, db - nm->db, 0,
- db->st.st_entries_num);
- }
- /* *INDENT-ON* */
+ /* *INDENT-OFF* */
+ vec_foreach (db, nm->db)
+ {
+ nat64_db_free_out_addr (thread_index, db, &a->addr);
+ vlib_set_simple_counter (&nm->total_bibs, db - nm->db, 0,
+ db->bib.bib_entries_num);
+ vlib_set_simple_counter (&nm->total_sessions, db - nm->db, 0,
+ db->st.st_entries_num);
+ }
+ /* *INDENT-ON* */
vec_del1 (nm->addr_pool, i);
}
/* *INDENT-OFF* */
pool_foreach (interface, nm->interfaces,
({
- if (nat_interface_is_inside(interface))
+ if (nat64_interface_is_inside(interface))
continue;
- snat_add_del_addr_to_fib (addr, 32, interface->sw_if_index, is_add);
+ nat64_add_del_addr_to_fib (addr, 32, interface->sw_if_index, is_add);
break;
}));
/* *INDENT-ON* */
nat64_pool_addr_walk (nat64_pool_addr_walk_fn_t fn, void *ctx)
{
nat64_main_t *nm = &nat64_main;
- snat_address_t *a = 0;
+ nat64_address_t *a = 0;
/* *INDENT-OFF* */
vec_foreach (a, nm->addr_pool)
#undef _
}
+void
+nat64_add_del_addr_to_fib (ip4_address_t * addr, u8 p_len, u32 sw_if_index,
+ int is_add)
+{
+ nat64_main_t *nm = &nat64_main;
+ fib_prefix_t prefix = {
+ .fp_len = p_len,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = addr->as_u32,
+ },
+ };
+ u32 fib_index = ip4_fib_table_get_index_for_sw_if_index (sw_if_index);
+
+ if (is_add)
+ fib_table_entry_update_one_path (fib_index,
+ &prefix,
+ nm->fib_src_low,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_LOCAL |
+ FIB_ENTRY_FLAG_EXCLUSIVE),
+ DPO_PROTO_IP4,
+ NULL,
+ sw_if_index,
+ ~0, 1, NULL, FIB_ROUTE_PATH_FLAG_NONE);
+ else
+ fib_table_entry_delete (fib_index, &prefix, nm->fib_src_low);
+}
+
int
-nat64_add_del_interface (u32 sw_if_index, u8 is_inside, u8 is_add)
+nat64_interface_add_del (u32 sw_if_index, u8 is_inside, u8 is_add)
{
vlib_main_t *vm = vlib_get_main ();
nat64_main_t *nm = &nat64_main;
- snat_interface_t *interface = 0, *i;
- snat_address_t *ap;
+ nat64_interface_t *interface = 0, *i;
+ nat64_address_t *ap;
const char *feature_name, *arc_name;
+ // TODO: is enabled ? we can't signal if it is not
+
/* Check if interface already exists */
/* *INDENT-OFF* */
pool_foreach (i, nm->interfaces,
nat64_validate_counters (nm, sw_if_index);
set_flags:
if (is_inside)
- interface->flags |= NAT_INTERFACE_FLAG_IS_INSIDE;
+ interface->flags |= NAT64_INTERFACE_FLAG_IS_INSIDE;
else
- interface->flags |= NAT_INTERFACE_FLAG_IS_OUTSIDE;
+ interface->flags |= NAT64_INTERFACE_FLAG_IS_OUTSIDE;
nm->total_enabled_count++;
vlib_process_signal_event (vm,
- nm->nat64_expire_walk_node_index,
+ nm->expire_walk_node_index,
NAT64_CLEANER_RESCHEDULE, 0);
}
if (!interface)
return VNET_API_ERROR_NO_SUCH_ENTRY;
- if ((nat_interface_is_inside (interface)
- && nat_interface_is_outside (interface)))
+ if ((nat64_interface_is_inside (interface)
+ && nat64_interface_is_outside (interface)))
interface->flags &=
- is_inside ? ~NAT_INTERFACE_FLAG_IS_INSIDE :
- ~NAT_INTERFACE_FLAG_IS_OUTSIDE;
+ is_inside ? ~NAT64_INTERFACE_FLAG_IS_INSIDE :
+ ~NAT64_INTERFACE_FLAG_IS_OUTSIDE;
else
pool_put (nm->interfaces, interface);
{
/* *INDENT-OFF* */
vec_foreach (ap, nm->addr_pool)
- snat_add_del_addr_to_fib(&ap->addr, 32, sw_if_index, is_add);
+ nat64_add_del_addr_to_fib (&ap->addr, 32, sw_if_index, is_add);
/* *INDENT-ON* */
}
- if (nm->sm->num_workers > 1)
+ if (nm->num_workers > 1)
{
feature_name =
is_inside ? "nat64-in2out-handoff" : "nat64-out2in-handoff";
nat64_interfaces_walk (nat64_interface_walk_fn_t fn, void *ctx)
{
nat64_main_t *nm = &nat64_main;
- snat_interface_t *i = 0;
+ nat64_interface_t *i = 0;
/* *INDENT-OFF* */
pool_foreach (i, nm->interfaces,
/* *INDENT-ON* */
}
+// TODO: plugin independent
+static_always_inline u16
+nat64_random_port (u16 min, u16 max)
+{
+ nat64_main_t *nm = &nat64_main;
+ u32 rwide;
+ u16 r;
+
+ rwide = random_u32 (&nm->random_seed);
+ r = rwide & 0xFFFF;
+ if (r >= min && r <= max)
+ return r;
+
+ return min + (rwide % (max - min + 1));
+}
+
+static_always_inline int
+nat64_alloc_addr_and_port_default (nat64_address_t * addresses,
+ u32 fib_index,
+ u32 thread_index,
+ nat_protocol_t proto,
+ ip4_address_t * addr,
+ u16 * port,
+ u16 port_per_thread, u32 nat_thread_index)
+{
+ int i;
+ nat64_address_t *a, *ga = 0;
+ u32 portnum;
+
+ for (i = 0; i < vec_len (addresses); i++)
+ {
+ a = addresses + i;
+ switch (proto)
+ {
+#define _(N, j, n, s) \
+ case NAT_PROTOCOL_##N: \
+ if (a->busy_##n##_ports_per_thread[thread_index] < port_per_thread) \
+ { \
+ if (a->fib_index == fib_index) \
+ { \
+ while (1) \
+ { \
+ portnum = (port_per_thread * \
+ nat_thread_index) + \
+ nat64_random_port(0, port_per_thread - 1) + 1024; \
+ if (a->busy_##n##_port_refcounts[portnum]) \
+ continue; \
+ --a->busy_##n##_port_refcounts[portnum]; \
+ a->busy_##n##_ports_per_thread[thread_index]++; \
+ a->busy_##n##_ports++; \
+ *addr = a->addr; \
+ *port = clib_host_to_net_u16(portnum); \
+ return 0; \
+ } \
+ } \
+ else if (a->fib_index == ~0) \
+ { \
+ ga = a; \
+ } \
+ } \
+ break;
+ foreach_nat_protocol
+#undef _
+ default:
+ return 1;
+ }
+
+ }
+
+ if (ga)
+ {
+ a = ga;
+ switch (proto)
+ {
+#define _(N, j, n, s) \
+ case NAT_PROTOCOL_##N: \
+ while (1) \
+ { \
+ portnum = (port_per_thread * \
+ nat_thread_index) + \
+ nat64_random_port(0, port_per_thread - 1) + 1024; \
+ if (a->busy_##n##_port_refcounts[portnum]) \
+ continue; \
+ ++a->busy_##n##_port_refcounts[portnum]; \
+ a->busy_##n##_ports_per_thread[thread_index]++; \
+ a->busy_##n##_ports++; \
+ *addr = a->addr; \
+ *port = clib_host_to_net_u16(portnum); \
+ return 0; \
+ }
+ break;
+ foreach_nat_protocol
+#undef _
+ default:
+ return 1;
+ }
+ }
+
+ /* Totally out of translations to use... */
+ //snat_ipfix_logging_addresses_exhausted (thread_index, 0);
+ return 1;
+}
+
int
nat64_alloc_out_addr_and_port (u32 fib_index, nat_protocol_t proto,
ip4_address_t * addr, u16 * port,
u32 thread_index)
{
nat64_main_t *nm = &nat64_main;
- snat_main_t *sm = nm->sm;
u32 worker_index = 0;
int rv;
- if (sm->num_workers > 1)
- worker_index = thread_index - sm->first_worker_index;
+ if (nm->num_workers > 1)
+ worker_index = thread_index - nm->first_worker_index;
- rv =
- sm->alloc_addr_and_port (nm->addr_pool, fib_index, thread_index,
- proto, addr, port, sm->port_per_thread,
- worker_index);
+ rv = nat64_alloc_addr_and_port_default (nm->addr_pool, fib_index,
+ thread_index,
+ proto, addr, port,
+ nm->port_per_thread, worker_index);
return rv;
}
u16 port, u8 protocol)
{
nat64_main_t *nm = &nat64_main;
- int i;
- snat_address_t *a;
u32 thread_index = db - nm->db;
nat_protocol_t proto = ip_proto_to_nat_proto (protocol);
u16 port_host_byte_order = clib_net_to_host_u16 (port);
+ nat64_address_t *a;
+ int i;
for (i = 0; i < vec_len (nm->addr_pool); i++)
{
foreach_nat_protocol
#undef _
default:
- nat_elog_notice ("unknown protocol");
+ nat_elog_str ("unknown protocol");
return;
}
break;
nat64_main_t *nm = &nat64_main;
nat64_db_bib_entry_t *bibe;
u32 fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, vrf_id,
- nat_fib_src_hi);
+ nm->fib_src_hi);
nat_protocol_t p = ip_proto_to_nat_proto (proto);
ip46_address_t addr;
int i;
- snat_address_t *a;
+ nat64_address_t *a;
u32 thread_index = 0;
nat64_db_t *db;
nat64_static_bib_to_update_t *static_bib;
vlib_main_t *worker_vm;
u32 *to_be_free = 0, *index;
- if (nm->sm->num_workers > 1)
+ if (nm->num_workers > 1)
{
thread_index = nat64_get_worker_in2out (in_addr);
db = &nm->db[thread_index];
}
else
- db = &nm->db[nm->sm->num_workers];
+ db = &nm->db[nm->num_workers];
addr.as_u64[0] = in_addr->as_u64[0];
addr.as_u64[1] = in_addr->as_u64[1];
return VNET_API_ERROR_VALUE_EXIST;
/* outside port must be assigned to same thread as internall address */
- if ((out_port > 1024) && (nm->sm->num_workers > 1))
+ if ((out_port > 1024) && (nm->num_workers > 1))
{
- if (thread_index != ((out_port - 1024) / nm->sm->port_per_thread))
+ if (thread_index != ((out_port - 1024) / nm->port_per_thread))
return VNET_API_ERROR_INVALID_VALUE_2;
}
}
break;
}
- if (!nm->sm->num_workers)
+ if (!nm->num_workers)
{
bibe =
nat64_db_bib_entry_create (thread_index, db, in_addr, out_addr,
if (!bibe)
return VNET_API_ERROR_NO_SUCH_ENTRY;
- if (!nm->sm->num_workers)
+ if (!nm->num_workers)
{
nat64_db_bib_entry_free (thread_index, db, bibe);
vlib_set_simple_counter (&nm->total_bibs, thread_index, 0,
}
}
- if (nm->sm->num_workers)
+ if (nm->num_workers)
{
/* *INDENT-OFF* */
pool_foreach (static_bib, nm->static_bibs,
nat64_main_t *nm = &nat64_main;
if (timeout == 0)
- nm->udp_timeout = SNAT_UDP_TIMEOUT;
+ nm->udp_timeout = NAT_UDP_TIMEOUT;
else
nm->udp_timeout = timeout;
nat64_main_t *nm = &nat64_main;
if (timeout == 0)
- nm->icmp_timeout = SNAT_ICMP_TIMEOUT;
+ nm->icmp_timeout = NAT_ICMP_TIMEOUT;
else
nm->icmp_timeout = timeout;
return 0;
}
+void
+nat64_reset_timeouts ()
+{
+ nat64_main_t *nm = &nat64_main;
+
+ nm->udp_timeout = NAT_UDP_TIMEOUT;
+ nm->icmp_timeout = NAT_ICMP_TIMEOUT;
+ nm->tcp_est_timeout = NAT_TCP_ESTABLISHED_TIMEOUT;
+ nm->tcp_trans_timeout = NAT_TCP_TRANSITORY_TIMEOUT;
+}
+
u32
nat64_get_icmp_timeout (void)
{
nat64_main_t *nm = &nat64_main;
if (trans == 0)
- nm->tcp_trans_timeout = SNAT_TCP_TRANSITORY_TIMEOUT;
+ nm->tcp_trans_timeout = NAT_TCP_TRANSITORY_TIMEOUT;
else
nm->tcp_trans_timeout = trans;
if (est == 0)
- nm->tcp_est_timeout = SNAT_TCP_ESTABLISHED_TIMEOUT;
+ nm->tcp_est_timeout = NAT_TCP_ESTABLISHED_TIMEOUT;
else
nm->tcp_est_timeout = est;
vec_add2 (nm->pref64, p, 1);
p->fib_index =
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, vrf_id,
- nat_fib_src_hi);
+ nm->fib_src_hi);
p->vrf_id = vrf_id;
}
if (!p)
return VNET_API_ERROR_NO_SUCH_ENTRY;
+ // TODO: missing fib_table_unlock ?
+
vec_del1 (nm->pref64, i);
}
ip6->as_u32[3] = ip4->as_u32;
break;
default:
- nat_elog_notice ("invalid prefix length");
+ nat_elog_str ("invalid prefix length");
break;
}
}
ip4->as_u32 = ip6->as_u32[3];
break;
default:
- nat_elog_notice ("invalid prefix length");
+ nat_elog_str ("invalid prefix length");
break;
}
}
{
nat64_main_t *nm = &nat64_main;
u32 thread_index = vm->thread_index;
- nat64_db_t *db = &nm->db[thread_index];
- u32 now = (u32) vlib_time_now (vm);
+ nat64_db_t *db;
+ u32 now;
+
+ // TODO: barier sync on plugin enabled
+ if (plugin_enabled () == 0)
+ return 0;
+
+ db = &nm->db[thread_index];
+ now = (u32) vlib_time_now (vm);
nad64_db_st_free_expired (thread_index, db, now);
vlib_set_simple_counter (&nm->total_bibs, thread_index, 0,
db->bib.bib_entries_num);
vlib_set_simple_counter (&nm->total_sessions, thread_index, 0,
db->st.st_entries_num);
-
return 0;
}
-static vlib_node_registration_t nat64_expire_worker_walk_node;
-
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (nat64_expire_worker_walk_node, static) = {
.function = nat64_expire_worker_walk_fn,
};
/* *INDENT-ON* */
-static vlib_node_registration_t nat64_expire_walk_node;
-
/**
* @brief Centralized process to drive per worker expire walk.
*/
int i;
uword event_type, *event_data = 0;
- nm->nat64_expire_walk_node_index = nat64_expire_walk_node.index;
-
if (vec_len (vlib_mains) == 0)
vec_add1 (worker_vms, vm);
else
case NAT64_CLEANER_RESCHEDULE:
break;
default:
- nat_elog_notice_X1 ("unknown event %d", "i4", event_type);
+ nat64_log_err ("unknown event %u", event_type);
break;
}
{
worker_vm = worker_vms[i];
vlib_node_set_interrupt_pending (worker_vm,
- nat64_expire_worker_walk_node.index);
+ nm->expire_worker_walk_node_index);
}
}
return 0;
}
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (nat64_expire_walk_node, static) = {
- .function = nat64_expire_walk_fn,
- .type = VLIB_NODE_TYPE_PROCESS,
- .name = "nat64-expire-walk",
-};
-/* *INDENT-ON* */
+void
+nat64_create_expire_walk_process ()
+{
+ nat64_main_t *nm = &nat64_main;
+
+ if (nm->expire_walk_node_index)
+ return;
+ nm->expire_walk_node_index = vlib_process_create (vlib_get_main (),
+ "nat64-expire-walk",
+ nat64_expire_walk_fn,
+ 16 /* stack_bytes */ );
+}
+
+int
+nat64_plugin_enable (nat64_config_t c)
+{
+ nat64_main_t *nm = &nat64_main;
+
+ if (plugin_enabled () == 1)
+ {
+ nat64_log_err ("plugin already enabled!");
+ return 1;
+ }
+
+ if (!c.bib_buckets)
+ c.bib_buckets = 1024;
+
+ if (!c.bib_memory_size)
+ c.bib_memory_size = 128 << 20;
+
+ if (!c.st_buckets)
+ c.st_buckets = 2048;
+
+ if (!c.st_memory_size)
+ c.st_memory_size = 256 << 20;
+
+ nm->config = c;
+
+ if (nat64_init_hash (c))
+ {
+ nat64_log_err ("initializing hashes failed!");
+ return 1;
+ }
+
+ nat64_create_expire_walk_process ();
+
+ nm->enabled = 1;
+ return 0;
+}
+
+int
+nat64_plugin_disable ()
+{
+ nat64_main_t *nm = &nat64_main;
+ vnet_main_t *vnm = vnet_get_main ();
+ int rv = 0;
+
+ nat64_address_t *a;
+ nat64_interface_t *i, *interfaces;
+
+ if (plugin_enabled () == 0)
+ {
+ nat64_log_err ("plugin already disabled!");
+ return 1;
+ }
+ nm->enabled = 0;
+
+ interfaces = vec_dup (nm->interfaces);
+ vec_foreach (i, interfaces)
+ {
+ rv = nat64_interface_add_del (i->sw_if_index, i->flags, 1);
+ if (rv)
+ {
+ nat64_log_err ("%U %s interface del failed",
+ unformat_vnet_sw_interface,
+ i->flags & NAT64_INTERFACE_FLAG_IS_INSIDE ?
+ "inside" : "outside", vnm, i->sw_if_index);
+ }
+ }
+ vec_free (interfaces);
+ pool_free (nm->interfaces);
+
+ nat64_reset_timeouts ();
+
+ if (nat64_free_hash ())
+ {
+ rv = 1;
+ nat64_log_err ("freeing hashes failed!");
+ }
+
+ // TODO: based on nat64_add_del_prefix fib_table_unlock is not called
+ vec_free (nm->pref64);
+
+ if (vec_len (nm->addr_pool))
+ {
+ vec_foreach (a, nm->addr_pool)
+ {
+ if (a->fib_index != ~0)
+ fib_table_unlock (a->fib_index, FIB_PROTOCOL_IP6, nm->fib_src_hi);
+ }
+ vec_free (nm->addr_pool);
+ }
+ return rv;
+}
+
+uword
+unformat_nat_protocol (unformat_input_t * input, va_list * args)
+{
+ u32 *r = va_arg (*args, u32 *);
+
+ if (0);
+#define _(N, i, n, s) else if (unformat (input, s)) *r = NAT_PROTOCOL_##N;
+ foreach_nat_protocol
+#undef _
+ else
+ return 0;
+ return 1;
+}
+
+u8 *
+format_nat_protocol (u8 * s, va_list * args)
+{
+ u32 i = va_arg (*args, u32);
+ u8 *t = 0;
+
+ switch (i)
+ {
+#define _(N, j, n, str) case NAT_PROTOCOL_##N: t = (u8 *) str; break;
+ foreach_nat_protocol
+#undef _
+ default:
+ s = format (s, "unknown");
+ return s;
+ }
+ s = format (s, "%s", t);
+ return s;
+}
/*
* fd.io coding-style-patch-verification: ON
Code Review / vpp.git / blobdiff