diff options
Diffstat (limited to 'src/plugins/nat/nat.c')
| -rw-r--r-- | src/plugins/nat/nat.c | 110 |
1 files changed, 105 insertions, 5 deletions
diff --git a/src/plugins/nat/nat.c b/src/plugins/nat/nat.c index 8c188f65709..896fe5fd59e 100644 --- a/src/plugins/nat/nat.c +++ b/src/plugins/nat/nat.c @@ -733,7 +733,7 @@ delete: pool_put (sm->static_mappings, m); } - if (!addr_only) + if (!addr_only || (l_addr.as_u32 == e_addr.as_u32)) return 0; /* Add/delete external address to FIB */ @@ -1240,7 +1240,7 @@ fib: 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); @@ -1990,7 +1990,7 @@ add_static_mapping_command_fn (vlib_main_t * vm, u32 sw_if_index = ~0; vnet_main_t * vnm = vnet_get_main(); int rv; - snat_protocol_t proto; + snat_protocol_t proto = ~0; u8 proto_set = 0; /* Get a line of input. */ @@ -2090,6 +2090,100 @@ VLIB_CLI_COMMAND (add_static_mapping_command, static) = { }; static clib_error_t * +add_identity_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 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; + + addr.as_u32 = 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, &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; + } + } + + rv = snat_add_static_mapping(addr, addr, (u16) port, (u16) port, + vrf_id, addr_only, sw_if_index, proto, is_add); + + 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; + } + +done: + unformat_free (line_input); + + return error; +} + +/*? + * @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) @@ -2999,6 +3093,7 @@ 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; @@ -3021,8 +3116,13 @@ snat_ip4_add_del_interface_address_cb (ip4_main_t * im, /* On this interface? */ if (rp->sw_if_index == sw_if_index) { + /* 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 (rp->l_addr, + rv = snat_add_static_mapping (l_addr, address[0], rp->l_port, rp->e_port, @@ -3032,7 +3132,7 @@ snat_ip4_add_del_interface_address_cb (ip4_main_t * im, rp->proto, rp->is_add); if (rv) - clib_warning ("snat_add_static_mapping returned %d", + clib_warning ("snat_add_static_mapping returned %d", rv); vec_add1 (indices_to_delete, j); } |