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-rw-r--r--src/plugins/nat/nat.c543
1 files changed, 249 insertions, 294 deletions
diff --git a/src/plugins/nat/nat.c b/src/plugins/nat/nat.c
index b60014d085e..39dd1db650a 100644
--- a/src/plugins/nat/nat.c
+++ b/src/plugins/nat/nat.c
@@ -38,9 +38,6 @@
snat_main_t snat_main;
-fib_source_t nat_fib_src_hi;
-fib_source_t nat_fib_src_low;
-
/* *INDENT-OFF* */
/* Hook up input features */
VNET_FEATURE_INIT (nat_pre_in2out, static) = {
@@ -200,49 +197,180 @@ snat_get_worker_in2out_cb (ip4_header_t * ip0, u32 rx_fib_index0,
static u32 nat_calc_bihash_buckets (u32 n_elts);
-u8 *format_static_mapping_kvp (u8 * s, va_list * args);
+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 *);
-u8 *format_ed_session_kvp (u8 * s, va_list * args);
+ s = format (s, "%U session-index %llu", format_snat_key, v->key, v->value);
-void
-nat_ha_sadd_cb (ip4_address_t * in_addr, u16 in_port,
- ip4_address_t * out_addr, u16 out_port,
- ip4_address_t * eh_addr, u16 eh_port,
- ip4_address_t * ehn_addr, u16 ehn_port, u8 proto,
- u32 fib_index, u16 flags, u32 thread_index);
+ return s;
+}
-void
-nat_ha_sdel_cb (ip4_address_t * out_addr, u16 out_port,
- ip4_address_t * eh_addr, u16 eh_port, u8 proto, u32 fib_index,
- u32 ti);
+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 *);
-void
-nat_ha_sref_cb (ip4_address_t * out_addr, u16 out_port,
- ip4_address_t * eh_addr, u16 eh_port, u8 proto, u32 fib_index,
- u32 total_pkts, u64 total_bytes, u32 thread_index);
+ s = format (s, "%U static-mapping-index %llu",
+ format_snat_key, v->key, v->value);
-void
-nat_ha_sadd_ed_cb (ip4_address_t * in_addr, u16 in_port,
- ip4_address_t * out_addr, u16 out_port,
- ip4_address_t * eh_addr, u16 eh_port,
- ip4_address_t * ehn_addr, u16 ehn_port, u8 proto,
- u32 fib_index, u16 flags, u32 thread_index);
+ return s;
+}
-void
-nat_ha_sdel_ed_cb (ip4_address_t * out_addr, u16 out_port,
- ip4_address_t * eh_addr, u16 eh_port, u8 proto,
- u32 fib_index, u32 ti);
+u8 *
+format_user_kvp (u8 * s, va_list * args)
+{
+ clib_bihash_kv_8_8_t *v = va_arg (*args, clib_bihash_kv_8_8_t *);
+ snat_user_key_t k;
-void
-nat_ha_sdel_ed_cb (ip4_address_t * out_addr, u16 out_port,
- ip4_address_t * eh_addr, u16 eh_port, u8 proto,
- u32 fib_index, u32 ti);
+ k.as_u64 = v->key;
+
+ s = format (s, "%U fib %d user-index %llu", format_ip4_address, &k.addr,
+ k.fib_index, v->value);
+
+ return s;
+}
+
+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 *);
+
+ u8 proto;
+ u16 r_port, l_port;
+ ip4_address_t l_addr, r_addr;
+ u32 fib_index;
+
+ split_ed_kv (v, &l_addr, &r_addr, &proto, &fib_index, &l_port, &r_port);
+ s =
+ format (s,
+ "local %U:%d remote %U:%d proto %U fib %d thread-index %u session-index %u",
+ format_ip4_address, &l_addr, clib_net_to_host_u16 (l_port),
+ format_ip4_address, &r_addr, clib_net_to_host_u16 (r_port),
+ format_ip_protocol, proto, fib_index,
+ ed_value_get_session_index (v), ed_value_get_thread_index (v));
+
+ return s;
+}
void
-nat_ha_sref_ed_cb (ip4_address_t * out_addr, u16 out_port,
- ip4_address_t * eh_addr, u16 eh_port, u8 proto,
- u32 fib_index, u32 total_pkts, u64 total_bytes,
- u32 thread_index);
+nat44_ei_free_session_data (snat_main_t * sm, snat_session_t * s,
+ u32 thread_index, u8 is_ha)
+{
+ clib_bihash_kv_8_8_t kv;
+
+ snat_main_per_thread_data_t *tsm =
+ vec_elt_at_index (sm->per_thread_data, thread_index);
+
+ init_nat_i2o_k (&kv, s);
+ if (clib_bihash_add_del_8_8 (&tsm->in2out, &kv, 0))
+ nat_elog_warn ("in2out key del failed");
+
+ init_nat_o2i_k (&kv, s);
+ if (clib_bihash_add_del_8_8 (&tsm->out2in, &kv, 0))
+ nat_elog_warn ("out2in key del failed");
+
+ if (!is_ha)
+ {
+ nat_syslog_nat44_apmdel (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port,
+ &s->out2in.addr, s->out2in.port, s->nat_proto);
+
+ nat_ipfix_logging_nat44_ses_delete (thread_index,
+ s->in2out.addr.as_u32,
+ s->out2in.addr.as_u32,
+ s->nat_proto,
+ s->in2out.port,
+ s->out2in.port,
+ s->in2out.fib_index);
+
+ nat_ha_sdel (&s->out2in.addr, s->out2in.port, &s->ext_host_addr,
+ s->ext_host_port, s->nat_proto, s->out2in.fib_index,
+ thread_index);
+
+ }
+
+ if (snat_is_session_static (s))
+ return;
+
+ snat_free_outside_address_and_port (sm->addresses, thread_index,
+ &s->out2in.addr, s->out2in.port,
+ s->nat_proto);
+}
+
+static_always_inline void
+nat44_ei_user_del_sessions (snat_user_t * u, u32 thread_index)
+{
+ dlist_elt_t *elt;
+ snat_session_t *s;
+
+ snat_main_t *sm = &snat_main;
+ snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
+
+ // get head
+ elt = pool_elt_at_index (tsm->list_pool,
+ u->sessions_per_user_list_head_index);
+ // get first element
+ elt = pool_elt_at_index (tsm->list_pool, elt->next);
+
+ while (elt->value != ~0)
+ {
+ s = pool_elt_at_index (tsm->sessions, elt->value);
+ elt = pool_elt_at_index (tsm->list_pool, elt->next);
+
+ nat44_ei_free_session_data (sm, s, thread_index, 0);
+ nat44_delete_session (sm, s, thread_index);
+ }
+}
+
+int
+nat44_ei_user_del (ip4_address_t * addr, u32 fib_index)
+{
+ int rv = 1;
+
+ snat_main_t *sm = &snat_main;
+ snat_main_per_thread_data_t *tsm;
+
+ snat_user_key_t user_key;
+ clib_bihash_kv_8_8_t kv, value;
+
+ if (sm->endpoint_dependent)
+ return rv;
+
+ user_key.addr.as_u32 = addr->as_u32;
+ user_key.fib_index = fib_index;
+ kv.key = user_key.as_u64;
+
+ if (sm->num_workers > 1)
+ {
+ /* *INDENT-OFF* */
+ vec_foreach (tsm, sm->per_thread_data)
+ {
+ if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
+ {
+ nat44_ei_user_del_sessions (
+ pool_elt_at_index (tsm->users, value.value),
+ tsm->thread_index);
+ rv = 0;
+ break;
+ }
+ }
+ /* *INDENT-ON* */
+ }
+ else
+ {
+ tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
+ if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
+ {
+ nat44_ei_user_del_sessions (pool_elt_at_index
+ (tsm->users, value.value),
+ tsm->thread_index);
+ rv = 0;
+ }
+ }
+ return rv;
+}
void
nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index,
@@ -382,129 +510,6 @@ nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index,
s->nat_proto);
}
-void
-nat44_free_session_data (snat_main_t * sm, snat_session_t * s,
- u32 thread_index, u8 is_ha)
-{
- u8 proto;
- u16 r_port, l_port;
- ip4_address_t *l_addr, *r_addr;
- u32 fib_index;
- clib_bihash_kv_16_8_t ed_kv;
- snat_main_per_thread_data_t *tsm =
- vec_elt_at_index (sm->per_thread_data, thread_index);
-
- if (is_fwd_bypass_session (s))
- {
- if (snat_is_unk_proto_session (s))
- {
- proto = s->in2out.port;
- r_port = 0;
- l_port = 0;
- }
- else
- {
- proto = nat_proto_to_ip_proto (s->nat_proto);
- l_port = s->in2out.port;
- r_port = s->ext_host_port;
- }
-
- l_addr = &s->in2out.addr;
- r_addr = &s->ext_host_addr;
- fib_index = 0;
- init_ed_k (&ed_kv, *l_addr, l_port, *r_addr, r_port, fib_index, proto);
-
- if (PREDICT_FALSE
- (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0)))
- nat_elog_warn ("in2out_ed key del failed");
- return;
- }
-
- /* session lookup tables */
- if (is_affinity_sessions (s))
- nat_affinity_unlock (s->ext_host_addr, s->out2in.addr,
- s->nat_proto, s->out2in.port);
- l_addr = &s->out2in.addr;
- r_addr = &s->ext_host_addr;
- fib_index = s->out2in.fib_index;
- if (snat_is_unk_proto_session (s))
- {
- proto = s->in2out.port;
- r_port = 0;
- l_port = 0;
- }
- else
- {
- proto = nat_proto_to_ip_proto (s->nat_proto);
- l_port = s->out2in.port;
- r_port = s->ext_host_port;
- }
- init_ed_k (&ed_kv, *l_addr, l_port, *r_addr, r_port, fib_index, proto);
-
- if (PREDICT_FALSE (clib_bihash_add_del_16_8 (&sm->out2in_ed, &ed_kv, 0)))
- nat_elog_warn ("out2in_ed key del failed");
-
- l_addr = &s->in2out.addr;
- fib_index = s->in2out.fib_index;
-
- if (!snat_is_unk_proto_session (s))
- l_port = s->in2out.port;
-
- if (is_twice_nat_session (s))
- {
- r_addr = &s->ext_host_nat_addr;
- r_port = s->ext_host_nat_port;
- }
- init_ed_k (&ed_kv, *l_addr, l_port, *r_addr, r_port, fib_index, proto);
-
- if (PREDICT_FALSE (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0)))
- nat_elog_warn ("in2out_ed key del failed");
-
- if (!is_ha)
- {
- nat_syslog_nat44_sdel (s->user_index, s->in2out.fib_index,
- &s->in2out.addr, s->in2out.port,
- &s->ext_host_nat_addr, s->ext_host_nat_port,
- &s->out2in.addr, s->out2in.port,
- &s->ext_host_addr, s->ext_host_port,
- s->nat_proto, is_twice_nat_session (s));
- }
-
- if (snat_is_unk_proto_session (s))
- return;
-
- if (!is_ha)
- {
- nat_ipfix_logging_nat44_ses_delete (thread_index,
- s->in2out.addr.as_u32,
- s->out2in.addr.as_u32,
- s->nat_proto,
- s->in2out.port,
- s->out2in.port,
- s->in2out.fib_index);
- nat_ha_sdel (&s->out2in.addr, s->out2in.port, &s->ext_host_addr,
- s->ext_host_port, s->nat_proto, s->out2in.fib_index,
- thread_index);
- }
-
- /* Twice NAT address and port for external host */
- if (is_twice_nat_session (s))
- {
- snat_free_outside_address_and_port (sm->twice_nat_addresses,
- thread_index,
- &s->ext_host_nat_addr,
- s->ext_host_nat_port, s->nat_proto);
- }
-
- if (snat_is_session_static (s))
- return;
-
- snat_free_outside_address_and_port (sm->addresses, thread_index,
- &s->out2in.addr, s->out2in.port,
- s->nat_proto);
-}
-
-
snat_user_t *
nat_user_get_or_create (snat_main_t * sm, ip4_address_t * addr, u32 fib_index,
u32 thread_index)
@@ -564,6 +569,7 @@ nat_user_get_or_create (snat_main_t * sm, ip4_address_t * addr, u32 fib_index,
return u;
}
+// only NAT EI
snat_session_t *
nat_session_alloc_or_recycle (snat_main_t * sm, snat_user_t * u,
u32 thread_index, f64 now)
@@ -597,6 +603,8 @@ nat_session_alloc_or_recycle (snat_main_t * sm, snat_user_t * u,
/* Get the session */
s = pool_elt_at_index (tsm->sessions, session_index);
+
+ // TODO: ONLY EI version should be called
nat_free_session_data (sm, s, thread_index, 0);
if (snat_is_session_static (s))
u->nstaticsessions--;
@@ -643,6 +651,7 @@ void
snat_add_del_addr_to_fib (ip4_address_t * addr, u8 p_len, u32 sw_if_index,
int is_add)
{
+ snat_main_t *sm = &snat_main;
fib_prefix_t prefix = {
.fp_len = p_len,
.fp_proto = FIB_PROTOCOL_IP4,
@@ -655,7 +664,7 @@ snat_add_del_addr_to_fib (ip4_address_t * addr, u8 p_len, u32 sw_if_index,
if (is_add)
fib_table_entry_update_one_path (fib_index,
&prefix,
- nat_fib_src_low,
+ sm->fib_src_low,
(FIB_ENTRY_FLAG_CONNECTED |
FIB_ENTRY_FLAG_LOCAL |
FIB_ENTRY_FLAG_EXCLUSIVE),
@@ -664,7 +673,7 @@ snat_add_del_addr_to_fib (ip4_address_t * addr, u8 p_len, u32 sw_if_index,
sw_if_index,
~0, 1, NULL, FIB_ROUTE_PATH_FLAG_NONE);
else
- fib_table_entry_delete (fib_index, &prefix, nat_fib_src_low);
+ fib_table_entry_delete (fib_index, &prefix, sm->fib_src_low);
}
int
@@ -702,7 +711,7 @@ snat_add_address (snat_main_t * sm, ip4_address_t * addr, u32 vrf_id,
if (vrf_id != ~0)
ap->fib_index =
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, vrf_id,
- nat_fib_src_low);
+ sm->fib_src_low);
else
ap->fib_index = ~0;
@@ -808,10 +817,10 @@ get_thread_idx_by_port (u16 e_port)
}
void
-snat_static_mapping_del_sessions (snat_main_t * sm,
- snat_main_per_thread_data_t * tsm,
- snat_user_key_t u_key, int addr_only,
- ip4_address_t e_addr, u16 e_port)
+nat_ei_static_mapping_del_sessions (snat_main_t * sm,
+ snat_main_per_thread_data_t * tsm,
+ snat_user_key_t u_key, int addr_only,
+ ip4_address_t e_addr, u16 e_port)
{
clib_bihash_kv_8_8_t kv, value;
kv.key = u_key.as_u64;
@@ -820,6 +829,7 @@ snat_static_mapping_del_sessions (snat_main_t * sm,
snat_user_t *u;
snat_session_t *s;
u32 elt_index, head_index, ses_index;
+
if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
{
user_index = value.value;
@@ -861,13 +871,13 @@ snat_static_mapping_del_sessions (snat_main_t * sm,
}
void
-snat_ed_static_mapping_del_sessions (snat_main_t * sm,
- snat_main_per_thread_data_t * tsm,
- ip4_address_t l_addr,
- u16 l_port,
- u8 protocol,
- u32 fib_index, int addr_only,
- ip4_address_t e_addr, u16 e_port)
+nat_ed_static_mapping_del_sessions (snat_main_t * sm,
+ snat_main_per_thread_data_t * tsm,
+ ip4_address_t l_addr,
+ u16 l_port,
+ u8 protocol,
+ u32 fib_index, int addr_only,
+ ip4_address_t e_addr, u16 e_port)
{
snat_session_t *s;
u32 *indexes_to_free = NULL;
@@ -935,7 +945,7 @@ snat_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
if (!sm->endpoint_dependent)
{
if (twice_nat || out2in_only)
- return VNET_API_ERROR_FEATURE_DISABLED;
+ return VNET_API_ERROR_UNSUPPORTED;
}
/* If the external address is a specific interface address */
@@ -1031,7 +1041,7 @@ snat_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
local->vrf_id = vrf_id;
local->fib_index =
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, vrf_id,
- nat_fib_src_low);
+ sm->fib_src_low);
init_nat_kv (&kv, m->local_addr, m->local_port,
local->fib_index, m->proto,
m - sm->static_mappings);
@@ -1049,13 +1059,13 @@ snat_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
if (vrf_id != ~0)
fib_index =
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, vrf_id,
- nat_fib_src_low);
+ sm->fib_src_low);
/* If not specified use inside VRF id from SNAT plugin startup config */
else
{
fib_index = sm->inside_fib_index;
vrf_id = sm->inside_vrf_id;
- fib_table_lock (fib_index, FIB_PROTOCOL_IP4, nat_fib_src_low);
+ fib_table_lock (fib_index, FIB_PROTOCOL_IP4, sm->fib_src_low);
}
if (!(out2in_only || identity_nat))
@@ -1180,6 +1190,7 @@ snat_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 1);
/* Delete dynamic sessions matching local address (+ local port) */
+ // TODO: based on type of NAT EI/ED
if (!(sm->static_mapping_only))
{
u_key.addr = m->local_addr;
@@ -1296,22 +1307,22 @@ snat_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
{
if (sm->endpoint_dependent)
{
- snat_ed_static_mapping_del_sessions (sm, tsm, m->local_addr,
- m->local_port, m->proto,
- fib_index, addr_only,
- e_addr, e_port);
+ nat_ed_static_mapping_del_sessions (sm, tsm, m->local_addr,
+ m->local_port, m->proto,
+ fib_index, addr_only,
+ e_addr, e_port);
}
else
{
u_key.addr = m->local_addr;
u_key.fib_index = fib_index;
kv.key = u_key.as_u64;
- snat_static_mapping_del_sessions (sm, tsm, u_key, addr_only,
- e_addr, e_port);
+ nat_ei_static_mapping_del_sessions (sm, tsm, u_key, addr_only,
+ e_addr, e_port);
}
}
- fib_table_unlock (fib_index, FIB_PROTOCOL_IP4, nat_fib_src_low);
+ fib_table_unlock (fib_index, FIB_PROTOCOL_IP4, sm->fib_src_low);
if (pool_elts (m->locals))
return 0;
@@ -1452,7 +1463,7 @@ nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
locals[i].fib_index =
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
locals[i].vrf_id,
- nat_fib_src_low);
+ sm->fib_src_low);
if (!out2in_only)
{
init_nat_kv (&kv, locals[i].addr, locals[i].port,
@@ -1536,7 +1547,7 @@ nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
pool_foreach (local, m->locals,
({
fib_table_unlock (local->fib_index, FIB_PROTOCOL_IP4,
- nat_fib_src_low);
+ sm->fib_src_low);
if (!out2in_only)
{
init_nat_k(& kv, local->addr, local->port, local->fib_index, m->proto);
@@ -1638,7 +1649,7 @@ nat44_lb_static_mapping_add_del_local (ip4_address_t e_addr, u16 e_port,
local->vrf_id = vrf_id;
local->fib_index =
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, vrf_id,
- nat_fib_src_low);
+ sm->fib_src_low);
if (!is_out2in_only_static_mapping (m))
{
@@ -1657,7 +1668,7 @@ nat44_lb_static_mapping_add_del_local (ip4_address_t e_addr, u16 e_port,
return VNET_API_ERROR_UNSPECIFIED;
fib_table_unlock (match_local->fib_index, FIB_PROTOCOL_IP4,
- nat_fib_src_low);
+ sm->fib_src_low);
if (!is_out2in_only_static_mapping (m))
{
@@ -1795,39 +1806,42 @@ snat_del_address (snat_main_t * sm, ip4_address_t addr, u8 delete_sm,
}
if (a->fib_index != ~0)
- fib_table_unlock (a->fib_index, FIB_PROTOCOL_IP4, nat_fib_src_low);
+ fib_table_unlock (a->fib_index, FIB_PROTOCOL_IP4, sm->fib_src_low);
/* Delete sessions using address */
if (a->busy_tcp_ports || a->busy_udp_ports || a->busy_icmp_ports)
{
- /* *INDENT-OFF* */
vec_foreach (tsm, sm->per_thread_data)
- {
- pool_foreach (ses, tsm->sessions, ({
- if (ses->out2in.addr.as_u32 == addr.as_u32)
- {
- nat_free_session_data (sm, ses, tsm - sm->per_thread_data, 0);
- vec_add1 (ses_to_be_removed, ses - tsm->sessions);
- }
- }));
+ {
+ /* *INDENT-OFF* */
+ pool_foreach (ses, tsm->sessions, ({
+ if (ses->out2in.addr.as_u32 == addr.as_u32)
+ {
+ nat_free_session_data (sm, ses, tsm - sm->per_thread_data, 0);
+ vec_add1 (ses_to_be_removed, ses - tsm->sessions);
+ }
+ }));
+ /* *INDENT-ON* */
- if (sm->endpoint_dependent){
- vec_foreach (ses_index, ses_to_be_removed)
- {
- ses = pool_elt_at_index (tsm->sessions, ses_index[0]);
- nat_ed_session_delete (sm, ses, tsm - sm->per_thread_data, 1);
- }
- }else{
- vec_foreach (ses_index, ses_to_be_removed)
- {
- ses = pool_elt_at_index (tsm->sessions, ses_index[0]);
- nat44_delete_session (sm, ses, tsm - sm->per_thread_data);
- }
+ if (sm->endpoint_dependent)
+ {
+ vec_foreach (ses_index, ses_to_be_removed)
+ {
+ ses = pool_elt_at_index (tsm->sessions, ses_index[0]);
+ nat_ed_session_delete (sm, ses, tsm - sm->per_thread_data, 1);
+ }
+ }
+ else
+ {
+ vec_foreach (ses_index, ses_to_be_removed)
+ {
+ ses = pool_elt_at_index (tsm->sessions, ses_index[0]);
+ nat44_delete_session (sm, ses, tsm - sm->per_thread_data);
+ }
}
- vec_free (ses_to_be_removed);
- }
- /* *INDENT-ON* */
+ vec_free (ses_to_be_removed);
+ }
}
#define _(N, i, n, s) \
@@ -2626,7 +2640,6 @@ nat_ip_table_add_del (vnet_main_t * vnm, u32 table_id, u32 is_add)
if (sm->endpoint_dependent)
{
// TODO: consider removing all NAT interfaces
-
if (!is_add)
{
fib_index = ip4_fib_index_from_table_id (table_id);
@@ -2707,7 +2720,6 @@ static clib_error_t *
nat_init (vlib_main_t * vm)
{
snat_main_t *sm = &snat_main;
- clib_error_t *error = 0;
vlib_thread_main_t *tm = vlib_get_thread_main ();
vlib_thread_registration_t *tr;
ip4_add_del_interface_address_callback_t cbi = { 0 };
@@ -2808,11 +2820,10 @@ nat_init (vlib_main_t * vm)
cbt.function = snat_update_outside_fib;
vec_add1 (sm->ip4_main->table_bind_callbacks, cbt);
- // TODO: is it possible to move it into snat_main ?
- nat_fib_src_low =
+ sm->fib_src_low =
fib_source_allocate ("nat-low", FIB_SOURCE_PRIORITY_LOW,
FIB_SOURCE_BH_SIMPLE);
- nat_fib_src_hi =
+ sm->fib_src_hi =
fib_source_allocate ("nat-hi", FIB_SOURCE_PRIORITY_HI,
FIB_SOURCE_BH_SIMPLE);
@@ -2823,8 +2834,7 @@ nat_init (vlib_main_t * vm)
nat_ha_init (vm, sm->num_workers, num_threads);
test_key_calc_split ();
- error = snat_api_init (vm, sm);
- return error;
+ return nat44_api_hookup (vm);
}
VLIB_INIT_FUNCTION (nat_init);
@@ -2878,18 +2888,14 @@ nat44_plugin_enable (nat44_config_t c)
sm->mss_clamping = 0;
if (!c.users)
- {
- c.users = 1024;
- }
+ c.users = 1024;
+
sm->max_users_per_thread = c.users;
sm->user_buckets = nat_calc_bihash_buckets (c.users);
if (!c.sessions)
- {
- // default value based on legacy setting of load factor 10 * default
- // translation buckets 1024
- c.sessions = 10 * 1024;
- }
+ c.sessions = 10 * 1024;
+
sm->max_translations_per_thread = c.sessions;
sm->translation_buckets = nat_calc_bihash_buckets (c.sessions);
@@ -2900,12 +2906,12 @@ nat44_plugin_enable (nat44_config_t c)
sm->outside_vrf_id = c.outside_vrf;
sm->outside_fib_index =
fib_table_find_or_create_and_lock
- (FIB_PROTOCOL_IP4, c.outside_vrf, nat_fib_src_hi);
+ (FIB_PROTOCOL_IP4, c.outside_vrf, sm->fib_src_hi);
sm->inside_vrf_id = c.inside_vrf;
sm->inside_fib_index =
fib_table_find_or_create_and_lock
- (FIB_PROTOCOL_IP4, c.inside_vrf, nat_fib_src_hi);
+ (FIB_PROTOCOL_IP4, c.inside_vrf, sm->fib_src_hi);
if (c.endpoint_dependent)
{
@@ -2917,6 +2923,8 @@ nat44_plugin_enable (nat44_config_t c)
sm->icmp_match_out2in_cb = icmp_match_out2in_ed;
sm->icmp_match_in2out_cb = icmp_match_in2out_ed;
+ // try to move it into nat44_db_init,
+ // consider static mapping requirements
clib_bihash_init_16_8 (&sm->out2in_ed, "out2in-ed",
sm->translation_buckets, 0);
clib_bihash_set_kvp_format_fn_16_8 (&sm->out2in_ed,
@@ -2977,8 +2985,7 @@ nat44_plugin_enable (nat44_config_t c)
vlib_zero_simple_counter (&sm->user_limit_reached, 0);
sm->enabled = 1;
-
- nat_log_info ("nat44 enable");
+ sm->rconfig = c;
return 0;
}
@@ -3092,6 +3099,7 @@ nat44_plugin_disable ()
sm->forwarding_enabled = 0;
sm->enabled = 0;
+ clib_memset (&sm->rconfig, 0, sizeof (sm->rconfig));
return 0;
}
@@ -3536,6 +3544,7 @@ exhausted:
void
nat44_add_del_address_dpo (ip4_address_t addr, u8 is_add)
{
+ snat_main_t *sm = &snat_main;
dpo_id_t dpo_v4 = DPO_INVALID;
fib_prefix_t pfx = {
.fp_proto = FIB_PROTOCOL_IP4,
@@ -3546,73 +3555,16 @@ nat44_add_del_address_dpo (ip4_address_t addr, u8 is_add)
if (is_add)
{
nat_dpo_create (DPO_PROTO_IP4, 0, &dpo_v4);
- fib_table_entry_special_dpo_add (0, &pfx, nat_fib_src_hi,
+ fib_table_entry_special_dpo_add (0, &pfx, sm->fib_src_hi,
FIB_ENTRY_FLAG_EXCLUSIVE, &dpo_v4);
dpo_reset (&dpo_v4);
}
else
{
- fib_table_entry_special_remove (0, &pfx, nat_fib_src_hi);
+ fib_table_entry_special_remove (0, &pfx, sm->fib_src_hi);
}
}
-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 *);
-
- s = format (s, "%U session-index %llu", format_snat_key, v->key, v->value);
-
- return s;
-}
-
-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 *);
-
- s = format (s, "%U static-mapping-index %llu",
- format_snat_key, v->key, v->value);
-
- return s;
-}
-
-u8 *
-format_user_kvp (u8 * s, va_list * args)
-{
- clib_bihash_kv_8_8_t *v = va_arg (*args, clib_bihash_kv_8_8_t *);
- snat_user_key_t k;
-
- k.as_u64 = v->key;
-
- s = format (s, "%U fib %d user-index %llu", format_ip4_address, &k.addr,
- k.fib_index, v->value);
-
- return s;
-}
-
-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 *);
-
- u8 proto;
- u16 r_port, l_port;
- ip4_address_t l_addr, r_addr;
- u32 fib_index;
-
- split_ed_kv (v, &l_addr, &r_addr, &proto, &fib_index, &l_port, &r_port);
- s =
- format (s,
- "local %U:%d remote %U:%d proto %U fib %d thread-index %u session-index %u",
- format_ip4_address, &l_addr, clib_net_to_host_u16 (l_port),
- format_ip4_address, &r_addr, clib_net_to_host_u16 (r_port),
- format_ip_protocol, proto, fib_index,
- ed_value_get_session_index (v), ed_value_get_thread_index (v));
-
- return s;
-}
-
static u32
snat_get_worker_in2out_cb (ip4_header_t * ip0, u32 rx_fib_index0,
u8 is_output)
@@ -4368,7 +4320,11 @@ nat44_db_init (snat_main_per_thread_data_t * tsm)
sm->translation_buckets, 0);
clib_bihash_set_kvp_format_fn_16_8 (&tsm->in2out_ed,
format_ed_session_kvp);
-
+ /*
+ clib_bihash_init_16_8 (&sm->out2in_ed, "out2in-ed",
+ sm->translation_buckets, 0);
+ clib_bihash_set_kvp_format_fn_16_8 (&sm->out2in_ed,
+ format_ed_session_kvp); */
}
else
{
@@ -4597,7 +4553,6 @@ match:
}
}
-
int
snat_add_interface_address (snat_main_t * sm, u32 sw_if_index, int is_del,
u8 twice_nat)