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authorFilip Varga <fivarga@cisco.com>2021-06-29 14:28:21 +0200
committerOle Tr�an <otroan@employees.org>2021-07-14 12:46:42 +0000
commit63e15818bbf05e5bb5ecde5af0e9eec7b1084fec (patch)
tree05d0533db426b2dc780a9a41fef6602e73725ed8 /src/plugins/nat/nat44-ed/nat44_ed.c
parenta32416ded5aef52015155ce405708d98838be6b1 (diff)
nat: refactoring NAT44ED cfg functions
Refactored & fixed NAT44ED configuration functions used for handling interfaces and nodes. Type: refactor Signed-off-by: Filip Varga <fivarga@cisco.com> Change-Id: I6fbbb7f0fe35d572675997745d53290152987424
Diffstat (limited to 'src/plugins/nat/nat44-ed/nat44_ed.c')
-rw-r--r--src/plugins/nat/nat44-ed/nat44_ed.c733
1 files changed, 433 insertions, 300 deletions
diff --git a/src/plugins/nat/nat44-ed/nat44_ed.c b/src/plugins/nat/nat44-ed/nat44_ed.c
index 1a996cd16f7..41028d50a90 100644
--- a/src/plugins/nat/nat44-ed/nat44_ed.c
+++ b/src/plugins/nat/nat44-ed/nat44_ed.c
@@ -1393,17 +1393,46 @@ update_per_vrf_sessions_vec (u32 fib_index, int is_del)
}
}
+static_always_inline nat_outside_fib_t *
+nat44_ed_get_outside_fib (nat_outside_fib_t *outside_fibs, u32 fib_index)
+{
+ nat_outside_fib_t *f;
+ vec_foreach (f, outside_fibs)
+ {
+ if (f->fib_index == fib_index)
+ {
+ return f;
+ }
+ }
+ return 0;
+}
+
+static_always_inline snat_interface_t *
+nat44_ed_get_interface (snat_interface_t *interfaces, u32 sw_if_index)
+{
+ snat_interface_t *i;
+ pool_foreach (i, interfaces)
+ {
+ if (i->sw_if_index == sw_if_index)
+ {
+ return i;
+ }
+ }
+ return 0;
+}
+
int
-snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del)
+nat44_ed_add_interface (u32 sw_if_index, u8 is_inside)
{
+ const char *del_feature_name, *feature_name;
snat_main_t *sm = &snat_main;
+
+ nat_outside_fib_t *outside_fib;
+ snat_static_mapping_t *m;
snat_interface_t *i;
- const char *feature_name, *del_feature_name;
snat_address_t *ap;
- snat_static_mapping_t *m;
- nat_outside_fib_t *outside_fib;
- u32 fib_index = fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
- sw_if_index);
+ u32 fib_index;
+ int rv;
if (!sm->enabled)
{
@@ -1411,197 +1440,238 @@ snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del)
return VNET_API_ERROR_UNSUPPORTED;
}
- pool_foreach (i, sm->output_feature_interfaces)
- {
- if (i->sw_if_index == sw_if_index)
- {
- nat_log_err ("error interface already configured");
- return VNET_API_ERROR_VALUE_EXIST;
- }
- }
+ if (nat44_ed_get_interface (sm->output_feature_interfaces, sw_if_index))
+ {
+ nat_log_err ("error interface already configured");
+ 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
+ i = nat44_ed_get_interface (sm->interfaces, sw_if_index);
+ if (i)
{
+ if ((nat_interface_is_inside (i) && is_inside) ||
+ (nat_interface_is_outside (i) && !is_inside))
+ {
+ return 0;
+ }
if (sm->num_workers > 1)
- feature_name =
- is_inside ? "nat44-in2out-worker-handoff" :
- "nat44-out2in-worker-handoff";
+ {
+ del_feature_name = !is_inside ? "nat44-in2out-worker-handoff" :
+ "nat44-out2in-worker-handoff";
+ feature_name = "nat44-handoff-classify";
+ }
else
- feature_name = is_inside ? "nat-pre-in2out" : "nat-pre-out2in";
+ {
+ del_feature_name = !is_inside ? "nat-pre-in2out" : "nat-pre-out2in";
+
+ feature_name = "nat44-ed-classify";
+ }
+
+ rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 1);
+ if (rv)
+ return rv;
+ vnet_feature_enable_disable ("ip4-unicast", del_feature_name,
+ sw_if_index, 0, 0, 0);
+ vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index, 1,
+ 0, 0);
}
+ else
+ {
+ if (sm->num_workers > 1)
+ {
+ feature_name = is_inside ? "nat44-in2out-worker-handoff" :
+ "nat44-out2in-worker-handoff";
+ }
+ else
+ {
+ feature_name = is_inside ? "nat-pre-in2out" : "nat-pre-out2in";
+ }
- ASSERT (sm->frame_queue_nelts > 0);
+ nat_validate_interface_counters (sm, sw_if_index);
+ rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 1);
+ if (rv)
+ return rv;
+ vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index, 1,
+ 0, 0);
- if (sm->fq_in2out_index == ~0 && sm->num_workers > 1)
- sm->fq_in2out_index = vlib_frame_queue_main_init (sm->in2out_node_index,
- sm->frame_queue_nelts);
+ pool_get (sm->interfaces, i);
+ i->sw_if_index = sw_if_index;
+ i->flags = 0;
+ }
- if (sm->fq_out2in_index == ~0 && sm->num_workers > 1)
- sm->fq_out2in_index = vlib_frame_queue_main_init (sm->out2in_node_index,
- sm->frame_queue_nelts);
+ fib_index =
+ fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, sw_if_index);
- update_per_vrf_sessions_vec (fib_index, is_del);
+ update_per_vrf_sessions_vec (fib_index, 0 /*is_del*/);
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)
+ i->flags |= NAT_INTERFACE_FLAG_IS_OUTSIDE;
+
+ outside_fib = nat44_ed_get_outside_fib (sm->outside_fibs, fib_index);
+ if (outside_fib)
+ {
+ outside_fib->refcount++;
+ }
+ else
{
vec_add2 (sm->outside_fibs, outside_fib, 1);
- outside_fib->refcount = 1;
outside_fib->fib_index = fib_index;
+ outside_fib->refcount = 1;
}
- }
-feature_set:
- pool_foreach (i, sm->interfaces)
- {
- if (i->sw_if_index == sw_if_index)
- {
- if (is_del)
- {
- if (nat_interface_is_inside(i) && nat_interface_is_outside(i))
- {
- if (is_inside)
- i->flags &= ~NAT_INTERFACE_FLAG_IS_INSIDE;
- else
- i->flags &= ~NAT_INTERFACE_FLAG_IS_OUTSIDE;
-
- if (sm->num_workers > 1)
- {
- del_feature_name = "nat44-handoff-classify";
- feature_name = !is_inside ? "nat44-in2out-worker-handoff" :
- "nat44-out2in-worker-handoff";
- }
- else
- {
- del_feature_name = "nat44-ed-classify";
- feature_name =
- !is_inside ? "nat-pre-in2out" : "nat-pre-out2in";
- }
-
- int rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 0);
- if (rv)
- return rv;
- vnet_feature_enable_disable ("ip4-unicast", del_feature_name,
- sw_if_index, 0, 0, 0);
- vnet_feature_enable_disable ("ip4-unicast", feature_name,
- sw_if_index, 1, 0, 0);
- }
- else
- {
- int rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 0);
- if (rv)
- return rv;
- vnet_feature_enable_disable ("ip4-unicast", feature_name,
- sw_if_index, 0, 0, 0);
- pool_put (sm->interfaces, i);
- }
- }
- else
- {
- if ((nat_interface_is_inside (i) && is_inside) ||
- (nat_interface_is_outside (i) && !is_inside))
- return 0;
+ vec_foreach (ap, sm->addresses)
+ {
+ snat_add_del_addr_to_fib (&ap->addr, 32, sw_if_index, 1);
+ }
+ pool_foreach (m, sm->static_mappings)
+ {
+ if (!(is_addr_only_static_mapping (m)) ||
+ (m->local_addr.as_u32 == m->external_addr.as_u32))
+ {
+ continue;
+ }
+ snat_add_del_addr_to_fib (&m->external_addr, 32, sw_if_index, 1);
+ }
+ }
+ else
+ {
+ i->flags |= NAT_INTERFACE_FLAG_IS_INSIDE;
+ }
- if (sm->num_workers > 1)
- {
- del_feature_name = !is_inside ? "nat44-in2out-worker-handoff" :
- "nat44-out2in-worker-handoff";
- feature_name = "nat44-handoff-classify";
- }
- else
- {
- del_feature_name =
- !is_inside ? "nat-pre-in2out" : "nat-pre-out2in";
+ return 0;
+}
- feature_name = "nat44-ed-classify";
- }
+int
+nat44_ed_del_interface (u32 sw_if_index, u8 is_inside)
+{
+ const char *del_feature_name, *feature_name;
+ snat_main_t *sm = &snat_main;
- int rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 1);
- if (rv)
- return rv;
- vnet_feature_enable_disable ("ip4-unicast", del_feature_name,
- sw_if_index, 0, 0, 0);
- vnet_feature_enable_disable ("ip4-unicast", feature_name,
- sw_if_index, 1, 0, 0);
- goto set_flags;
- }
+ nat_outside_fib_t *outside_fib;
+ snat_static_mapping_t *m;
+ snat_interface_t *i;
+ snat_address_t *ap;
+ u32 fib_index;
+ int rv;
- goto fib;
- }
- }
+ if (!sm->enabled)
+ {
+ nat_log_err ("nat44 is disabled");
+ return VNET_API_ERROR_UNSUPPORTED;
+ }
- if (is_del)
+ i = nat44_ed_get_interface (sm->interfaces, sw_if_index);
+ if (i == 0)
{
nat_log_err ("error interface couldn't be found");
return VNET_API_ERROR_NO_SUCH_ENTRY;
}
- pool_get (sm->interfaces, i);
- i->sw_if_index = sw_if_index;
- i->flags = 0;
- nat_validate_interface_counters (sm, sw_if_index);
-
- vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index, 1, 0,
- 0);
+ if (nat_interface_is_inside (i) && nat_interface_is_outside (i))
+ {
+ if (sm->num_workers > 1)
+ {
+ del_feature_name = "nat44-handoff-classify";
+ feature_name = !is_inside ? "nat44-in2out-worker-handoff" :
+ "nat44-out2in-worker-handoff";
+ }
+ else
+ {
+ del_feature_name = "nat44-ed-classify";
+ feature_name = !is_inside ? "nat-pre-in2out" : "nat-pre-out2in";
+ }
- int rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 1);
- if (rv)
- return rv;
+ rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 0);
+ if (rv)
+ {
+ return rv;
+ }
+ vnet_feature_enable_disable ("ip4-unicast", del_feature_name,
+ sw_if_index, 0, 0, 0);
+ vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index, 1,
+ 0, 0);
-set_flags:
- if (is_inside)
- {
- i->flags |= NAT_INTERFACE_FLAG_IS_INSIDE;
- return 0;
+ if (is_inside)
+ {
+ i->flags &= ~NAT_INTERFACE_FLAG_IS_INSIDE;
+ }
+ else
+ {
+ i->flags &= ~NAT_INTERFACE_FLAG_IS_OUTSIDE;
+ }
}
else
- i->flags |= NAT_INTERFACE_FLAG_IS_OUTSIDE;
+ {
+ if (sm->num_workers > 1)
+ {
+ feature_name = is_inside ? "nat44-in2out-worker-handoff" :
+ "nat44-out2in-worker-handoff";
+ }
+ else
+ {
+ feature_name = is_inside ? "nat-pre-in2out" : "nat-pre-out2in";
+ }
- /* Add/delete external addresses to FIB */
-fib:
- vec_foreach (ap, sm->addresses)
- snat_add_del_addr_to_fib(&ap->addr, 32, sw_if_index, !is_del);
+ rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 0);
+ if (rv)
+ {
+ return rv;
+ }
+ vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index, 0,
+ 0, 0);
- pool_foreach (m, sm->static_mappings)
- {
- if (!(is_addr_only_static_mapping(m)) || (m->local_addr.as_u32 == m->external_addr.as_u32))
- continue;
+ // remove interface
+ pool_put (sm->interfaces, i);
+ }
- snat_add_del_addr_to_fib(&m->external_addr, 32, sw_if_index, !is_del);
- }
+ fib_index =
+ fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, sw_if_index);
+
+ update_per_vrf_sessions_vec (fib_index, 1 /*is_del*/);
+
+ if (!is_inside)
+ {
+ outside_fib = nat44_ed_get_outside_fib (sm->outside_fibs, fib_index);
+ if (outside_fib)
+ {
+ outside_fib->refcount--;
+ if (!outside_fib->refcount)
+ {
+ vec_del1 (sm->outside_fibs, outside_fib - sm->outside_fibs);
+ }
+ }
+
+ vec_foreach (ap, sm->addresses)
+ {
+ snat_add_del_addr_to_fib (&ap->addr, 32, sw_if_index, 0);
+ }
+
+ pool_foreach (m, sm->static_mappings)
+ {
+ if (!(is_addr_only_static_mapping (m)) ||
+ (m->local_addr.as_u32 == m->external_addr.as_u32))
+ {
+ continue;
+ }
+ snat_add_del_addr_to_fib (&m->external_addr, 32, sw_if_index, 0);
+ }
+ }
return 0;
}
int
-snat_interface_add_del_output_feature (u32 sw_if_index,
- u8 is_inside, int is_del)
+nat44_ed_add_output_interface (u32 sw_if_index)
{
snat_main_t *sm = &snat_main;
+
+ nat_outside_fib_t *outside_fib;
+ snat_static_mapping_t *m;
snat_interface_t *i;
snat_address_t *ap;
- snat_static_mapping_t *m;
- nat_outside_fib_t *outside_fib;
- u32 fib_index = fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
- sw_if_index);
+ u32 fib_index;
+ int rv;
if (!sm->enabled)
{
@@ -1609,148 +1679,196 @@ snat_interface_add_del_output_feature (u32 sw_if_index,
return VNET_API_ERROR_UNSUPPORTED;
}
- if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))
+ if (nat44_ed_get_interface (sm->interfaces, sw_if_index))
{
- nat_log_err ("error unsupported");
- return VNET_API_ERROR_UNSUPPORTED;
+ nat_log_err ("error interface already configured");
+ return VNET_API_ERROR_VALUE_EXIST;
}
- pool_foreach (i, sm->interfaces)
- {
- if (i->sw_if_index == sw_if_index)
- {
- nat_log_err ("error interface already configured");
- return VNET_API_ERROR_VALUE_EXIST;
- }
- }
+ if (nat44_ed_get_interface (sm->output_feature_interfaces, sw_if_index))
+ {
+ nat_log_err ("error interface already configured");
+ return VNET_API_ERROR_VALUE_EXIST;
+ }
+
+ if (sm->num_workers > 1)
+ {
+ rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 1);
+ if (rv)
+ {
+ return rv;
+ }
- update_per_vrf_sessions_vec (fib_index, is_del);
+ rv = ip4_sv_reass_output_enable_disable_with_refcnt (sw_if_index, 1);
+ if (rv)
+ {
+ return rv;
+ }
- if (!is_inside)
+ vnet_feature_enable_disable (
+ "ip4-unicast", "nat44-out2in-worker-handoff", sw_if_index, 1, 0, 0);
+ vnet_feature_enable_disable ("ip4-output",
+ "nat44-in2out-output-worker-handoff",
+ sw_if_index, 1, 0, 0);
+ }
+ else
{
- 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)
+ rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 1);
+ if (rv)
{
- vec_add2 (sm->outside_fibs, outside_fib, 1);
- outside_fib->refcount = 1;
- outside_fib->fib_index = fib_index;
+ return rv;
}
+
+ rv = ip4_sv_reass_output_enable_disable_with_refcnt (sw_if_index, 1);
+ if (rv)
+ {
+ return rv;
+ }
+
+ vnet_feature_enable_disable ("ip4-unicast", "nat-pre-out2in",
+ sw_if_index, 1, 0, 0);
+ vnet_feature_enable_disable ("ip4-output", "nat-pre-in2out-output",
+ sw_if_index, 1, 0, 0);
+ }
+
+ nat_validate_interface_counters (sm, sw_if_index);
+
+ pool_get (sm->output_feature_interfaces, i);
+ i->sw_if_index = sw_if_index;
+ i->flags = 0;
+ i->flags |= NAT_INTERFACE_FLAG_IS_INSIDE;
+ i->flags |= NAT_INTERFACE_FLAG_IS_OUTSIDE;
+
+ fib_index =
+ fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, sw_if_index);
+ update_per_vrf_sessions_vec (fib_index, 0 /*is_del*/);
+
+ outside_fib = nat44_ed_get_outside_fib (sm->outside_fibs, fib_index);
+ if (outside_fib)
+ {
+ outside_fib->refcount++;
+ }
+ else
+ {
+ vec_add2 (sm->outside_fibs, outside_fib, 1);
+ outside_fib->fib_index = fib_index;
+ outside_fib->refcount = 1;
+ }
+
+ vec_foreach (ap, sm->addresses)
+ {
+ snat_add_del_addr_to_fib (&ap->addr, 32, sw_if_index, 1);
+ }
+
+ pool_foreach (m, sm->static_mappings)
+ {
+ if (!((is_addr_only_static_mapping (m))) ||
+ (m->local_addr.as_u32 == m->external_addr.as_u32))
+ {
+ continue;
+ }
+ snat_add_del_addr_to_fib (&m->external_addr, 32, sw_if_index, 1);
+ }
+
+ return 0;
+}
+
+int
+nat44_ed_del_output_interface (u32 sw_if_index)
+{
+ snat_main_t *sm = &snat_main;
+
+ nat_outside_fib_t *outside_fib;
+ snat_static_mapping_t *m;
+ snat_interface_t *i;
+ snat_address_t *ap;
+ u32 fib_index;
+ int rv;
+
+ if (!sm->enabled)
+ {
+ nat_log_err ("nat44 is disabled");
+ return VNET_API_ERROR_UNSUPPORTED;
}
-feature_set:
- if (is_inside)
+ i = nat44_ed_get_interface (sm->output_feature_interfaces, sw_if_index);
+ if (!i)
{
- int rv =
- ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, !is_del);
- if (rv)
- return rv;
- rv =
- ip4_sv_reass_output_enable_disable_with_refcnt (sw_if_index,
- !is_del);
- if (rv)
- return rv;
- goto fq;
+ nat_log_err ("error interface couldn't be found");
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
}
if (sm->num_workers > 1)
{
- int rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, !is_del);
+ rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 0);
if (rv)
- return rv;
- rv =
- ip4_sv_reass_output_enable_disable_with_refcnt (sw_if_index, !is_del);
+ {
+ return rv;
+ }
+
+ rv = ip4_sv_reass_output_enable_disable_with_refcnt (sw_if_index, 0);
if (rv)
- return rv;
- vnet_feature_enable_disable ("ip4-unicast",
- "nat44-out2in-worker-handoff",
- sw_if_index, !is_del, 0, 0);
+ {
+ return rv;
+ }
+
+ vnet_feature_enable_disable (
+ "ip4-unicast", "nat44-out2in-worker-handoff", sw_if_index, 0, 0, 0);
vnet_feature_enable_disable ("ip4-output",
"nat44-in2out-output-worker-handoff",
- sw_if_index, !is_del, 0, 0);
+ sw_if_index, 0, 0, 0);
}
else
{
- int rv =
- ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, !is_del);
- if (rv)
- return rv;
- rv =
- ip4_sv_reass_output_enable_disable_with_refcnt (sw_if_index,
- !is_del);
- if (rv)
- return rv;
- vnet_feature_enable_disable ("ip4-unicast", "nat-pre-out2in",
- sw_if_index, !is_del, 0, 0);
- vnet_feature_enable_disable ("ip4-output", "nat-pre-in2out-output",
- sw_if_index, !is_del, 0, 0);
- }
-
-fq:
- if (sm->fq_in2out_output_index == ~0 && sm->num_workers > 1)
- sm->fq_in2out_output_index =
- vlib_frame_queue_main_init (sm->in2out_output_node_index, 0);
-
- if (sm->fq_out2in_index == ~0 && sm->num_workers > 1)
- sm->fq_out2in_index =
- vlib_frame_queue_main_init (sm->out2in_node_index, 0);
-
- pool_foreach (i, sm->output_feature_interfaces)
- {
- if (i->sw_if_index == sw_if_index)
- {
- if (is_del)
- pool_put (sm->output_feature_interfaces, i);
- else
- return VNET_API_ERROR_VALUE_EXIST;
+ rv = ip4_sv_reass_enable_disable_with_refcnt (sw_if_index, 0);
+ if (rv)
+ {
+ return rv;
+ }
- goto fib;
- }
- }
+ rv = ip4_sv_reass_output_enable_disable_with_refcnt (sw_if_index, 0);
+ if (rv)
+ {
+ return rv;
+ }
- if (is_del)
- {
- nat_log_err ("error interface couldn't be found");
- return VNET_API_ERROR_NO_SUCH_ENTRY;
+ vnet_feature_enable_disable ("ip4-unicast", "nat-pre-out2in",
+ sw_if_index, 0, 0, 0);
+ vnet_feature_enable_disable ("ip4-output", "nat-pre-in2out-output",
+ sw_if_index, 0, 0, 0);
}
- pool_get (sm->output_feature_interfaces, i);
- i->sw_if_index = sw_if_index;
- i->flags = 0;
- nat_validate_interface_counters (sm, sw_if_index);
- if (is_inside)
- i->flags |= NAT_INTERFACE_FLAG_IS_INSIDE;
- else
- i->flags |= NAT_INTERFACE_FLAG_IS_OUTSIDE;
+ // remove interface
+ pool_put (sm->output_feature_interfaces, i);
- /* Add/delete external addresses to FIB */
-fib:
- if (is_inside)
- return 0;
+ fib_index =
+ fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, sw_if_index);
+ update_per_vrf_sessions_vec (fib_index, 1 /*is_del*/);
+
+ outside_fib = nat44_ed_get_outside_fib (sm->outside_fibs, fib_index);
+ if (outside_fib)
+ {
+ outside_fib->refcount--;
+ if (!outside_fib->refcount)
+ {
+ vec_del1 (sm->outside_fibs, outside_fib - sm->outside_fibs);
+ }
+ }
vec_foreach (ap, sm->addresses)
- snat_add_del_addr_to_fib(&ap->addr, 32, sw_if_index, !is_del);
+ {
+ snat_add_del_addr_to_fib (&ap->addr, 32, sw_if_index, 0);
+ }
pool_foreach (m, sm->static_mappings)
- {
- if (!((is_addr_only_static_mapping(m))) || (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);
- }
+ {
+ if (!((is_addr_only_static_mapping (m))) ||
+ (m->local_addr.as_u32 == m->external_addr.as_u32))
+ {
+ continue;
+ }
+ snat_add_del_addr_to_fib (&m->external_addr, 32, sw_if_index, 0);
+ }
return 0;
}
@@ -1936,14 +2054,14 @@ static clib_error_t *
nat_ip_table_add_del (vnet_main_t * vnm, u32 table_id, u32 is_add)
{
u32 fib_index;
-
- // TODO: consider removing all NAT interfaces
- if (!is_add)
+ if (!is_add)
+ {
+ fib_index = ip4_fib_index_from_table_id (table_id);
+ if (fib_index != ~0)
{
- fib_index = ip4_fib_index_from_table_id (table_id);
- if (fib_index != ~0)
- expire_per_vrf_sessions (fib_index);
+ expire_per_vrf_sessions (fib_index);
}
+ }
return 0;
}
@@ -2022,6 +2140,7 @@ nat_init (vlib_main_t * vm)
sm->log_level = NAT_LOG_ERROR;
nat44_set_node_indexes (sm, vm);
+
sm->log_class = vlib_log_register_class ("nat", 0);
nat_ipfix_logging_init (vm);
@@ -2061,14 +2180,15 @@ nat_init (vlib_main_t * vm)
/* Use all available workers by default */
if (sm->num_workers > 1)
{
-
for (i = 0; i < sm->num_workers; i++)
bitmap = clib_bitmap_set (bitmap, i, 1);
snat_set_workers (bitmap);
clib_bitmap_free (bitmap);
}
else
- sm->per_thread_data[0].snat_thread_index = 0;
+ {
+ sm->per_thread_data[0].snat_thread_index = 0;
+ }
/* callbacks to call when interface address changes. */
cbi.function = snat_ip4_add_del_interface_address_cb;
@@ -2102,19 +2222,12 @@ nat44_plugin_enable (nat44_config_t c)
fail_if_enabled ();
- // UPDATE based on these appropriate API/CLI
- // c.static_mapping_only + c.connection_tracking
- // - supported in NAT EI & NAT ED
- // c.out2in_dpo, c.static_mapping_only
- // - supported in NAT EI
-
if (c.static_mapping_only && !c.connection_tracking)
{
nat_log_err ("unsupported combination of configuration");
return 1;
}
- // nat44 feature configuration
sm->static_mapping_only = c.static_mapping_only;
sm->static_mapping_connection_tracking = c.connection_tracking;
@@ -2131,7 +2244,6 @@ nat44_plugin_enable (nat44_config_t c)
sm->max_translations_per_thread);
sm->translation_buckets = nat_calc_bihash_buckets (c.sessions);
- // ED only feature
vec_add1 (sm->max_translations_per_fib, sm->max_translations_per_thread);
sm->inside_vrf_id = c.inside_vrf;
@@ -2152,7 +2264,28 @@ nat44_plugin_enable (nat44_config_t c)
vlib_zero_simple_counter (&sm->total_sessions, 0);
if (!sm->frame_queue_nelts)
- sm->frame_queue_nelts = NAT_FQ_NELTS_DEFAULT;
+ {
+ sm->frame_queue_nelts = NAT_FQ_NELTS_DEFAULT;
+ }
+
+ if (sm->num_workers > 1)
+ {
+ if (sm->fq_in2out_index == ~0)
+ {
+ sm->fq_in2out_index = vlib_frame_queue_main_init (
+ sm->in2out_node_index, sm->frame_queue_nelts);
+ }
+ if (sm->fq_out2in_index == ~0)
+ {
+ sm->fq_out2in_index = vlib_frame_queue_main_init (
+ sm->out2in_node_index, sm->frame_queue_nelts);
+ }
+ if (sm->fq_in2out_output_index == ~0)
+ {
+ sm->fq_in2out_output_index = vlib_frame_queue_main_init (
+ sm->in2out_output_node_index, sm->frame_queue_nelts);
+ }
+ }
sm->enabled = 1;
sm->rconfig = c;
@@ -2179,44 +2312,44 @@ int
nat44_plugin_disable ()
{
snat_main_t *sm = &snat_main;
- snat_interface_t *i, *vec;
+ snat_interface_t *i, *pool;
int error = 0;
fail_if_disabled ();
- // first unregister all nodes from interfaces
- vec = vec_dup (sm->interfaces);
- vec_foreach (i, vec)
+ pool = pool_dup (sm->interfaces);
+ pool_foreach (i, pool)
{
- if (nat_interface_is_inside(i))
- error = snat_interface_add_del (i->sw_if_index, 1, 1);
- if (nat_interface_is_outside(i))
- error = snat_interface_add_del (i->sw_if_index, 0, 1);
-
+ if (nat_interface_is_inside (i))
+ {
+ error = nat44_ed_del_interface (i->sw_if_index, 1);
+ }
+ if (nat_interface_is_outside (i))
+ {
+ error = nat44_ed_del_interface (i->sw_if_index, 0);
+ }
if (error)
{
nat_log_err ("error occurred while removing interface %u",
i->sw_if_index);
}
}
- vec_free (vec);
+ pool_free (sm->interfaces);
+ pool_free (pool);
sm->interfaces = 0;
- vec = vec_dup (sm->output_feature_interfaces);
- vec_foreach (i, vec)
+ pool = pool_dup (sm->output_feature_interfaces);
+ pool_foreach (i, pool)
{
- if (nat_interface_is_inside(i))
- error = snat_interface_add_del_output_feature (i->sw_if_index, 1, 1);
- if (nat_interface_is_outside(i))
- error = snat_interface_add_del_output_feature (i->sw_if_index, 0, 1);
-
+ error = nat44_ed_del_output_interface (i->sw_if_index);
if (error)
{
nat_log_err ("error occurred while removing interface %u",
i->sw_if_index);
}
}
- vec_free (vec);
+ pool_free (sm->output_feature_interfaces);
+ pool_free (pool);
sm->output_feature_interfaces = 0;
vec_free (sm->max_translations_per_fib);