diff options
| author |   Matus Fabian <matfabia@cisco.com> | 2017-10-24 04:13:49 -0700 |
|---|---|---|
| committer |   Ole Trøan <otroan@employees.org> | 2017-10-25 16:18:54 +0000 |
| commit | 36ea2d6d3a67a60534a7c2b58551688858a1ce7f (patch) | |
| tree | 1cb424c70e1f1557e2354eb50559a346adb3314b /src/plugins/nat/nat64.c | |
| parent | ac1f96d7cdfb845c08400d27ec566b991e32e24b (diff) | |
One armed NAT (VPP-1035)
Use a single physical interface in order to accomplish NAT44/NAT64.
Change-Id: I0c8138953a7a4075df306172e125abad771315e4
Signed-off-by: Matus Fabian <matfabia@cisco.com>
Diffstat (limited to 'src/plugins/nat/nat64.c')
| -rw-r--r-- | src/plugins/nat/nat64.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/src/plugins/nat/nat64.c b/src/plugins/nat/nat64.c index bfcfa9b3620..952ca8fb11b 100644 --- a/src/plugins/nat/nat64.c +++ b/src/plugins/nat/nat64.c @@ -136,7 +136,7 @@ nat64_add_del_pool_addr (ip4_address_t * addr, u32 vrf_id, u8 is_add) /* *INDENT-OFF* */ pool_foreach (interface, nm->interfaces, ({ - if (interface->is_inside) + if (nat_interface_is_inside(interface)) continue; snat_add_del_addr_to_fib (addr, 32, interface->sw_if_index, is_add); @@ -170,7 +170,7 @@ nat64_add_del_interface (u32 sw_if_index, u8 is_inside, u8 is_add) snat_address_t *ap; const char *feature_name, *arc_name; - /* Check if address already exists */ + /* Check if interface already exists */ /* *INDENT-OFF* */ pool_foreach (i, nm->interfaces, ({ @@ -185,19 +185,29 @@ nat64_add_del_interface (u32 sw_if_index, u8 is_inside, u8 is_add) if (is_add) { if (interface) - return VNET_API_ERROR_VALUE_EXIST; + goto set_flags; pool_get (nm->interfaces, interface); interface->sw_if_index = sw_if_index; - interface->is_inside = is_inside; - + interface->flags = 0; + set_flags: + if (is_inside) + interface->flags |= NAT_INTERFACE_FLAG_IS_INSIDE; + else + interface->flags |= NAT_INTERFACE_FLAG_IS_OUTSIDE; } else { if (!interface) return VNET_API_ERROR_NO_SUCH_ENTRY; - pool_put (nm->interfaces, interface); + if ((nat_interface_is_inside (interface) + && nat_interface_is_outside (interface))) + interface->flags &= + is_inside ? ~NAT_INTERFACE_FLAG_IS_INSIDE : + ~NAT_INTERFACE_FLAG_IS_OUTSIDE; + else + pool_put (nm->interfaces, interface); } if (!is_inside) |