diff options
Diffstat (limited to 'src/plugins/gtpu/gtpu.c')
-rw-r--r-- | src/plugins/gtpu/gtpu.c | 457 |
1 files changed, 398 insertions, 59 deletions
diff --git a/src/plugins/gtpu/gtpu.c b/src/plugins/gtpu/gtpu.c index 531e45a1d5a..a2013c91c3f 100644 --- a/src/plugins/gtpu/gtpu.c +++ b/src/plugins/gtpu/gtpu.c @@ -35,7 +35,6 @@ gtpu_main_t gtpu_main; -/* *INDENT-OFF* */ VNET_FEATURE_INIT (ip4_gtpu_bypass, static) = { .arc_name = "ip4-unicast", .node_name = "ip4-gtpu-bypass", @@ -47,7 +46,6 @@ VNET_FEATURE_INIT (ip6_gtpu_bypass, static) = { .node_name = "ip6-gtpu-bypass", .runs_before = VNET_FEATURES ("ip6-lookup"), }; -/* *INDENT-on* */ u8 * format_gtpu_encap_trace (u8 * s, va_list * args) { @@ -56,8 +54,13 @@ u8 * format_gtpu_encap_trace (u8 * s, va_list * args) gtpu_encap_trace_t * t = va_arg (*args, gtpu_encap_trace_t *); - s = format (s, "GTPU encap to gtpu_tunnel%d tteid %d", - t->tunnel_index, t->tteid); + s = format (s, "GTPU encap to gtpu_tunnel%d tteid %u ", t->tunnel_index, + t->tteid); + + if (t->pdu_extension) + s = format (s, "pdu-extension qfi %d ", t->qfi); + else + s = format (s, "no-pdu-extension "); return s; } @@ -95,16 +98,37 @@ format_gtpu_tunnel (u8 * s, va_list * args) is_ipv6 ? im6->fibs[t->encap_fib_index].ft_table_id : im4->fibs[t->encap_fib_index].ft_table_id; - s = format (s, "[%d] src %U dst %U teid %d tteid %d " + s = format (s, + "[%d] src %U dst %U teid %u tteid %u " "encap-vrf-id %d sw-if-idx %d ", - t - ngm->tunnels, - format_ip46_address, &t->src, IP46_TYPE_ANY, - format_ip46_address, &t->dst, IP46_TYPE_ANY, - t->teid, t->tteid, encap_vrf_id, t->sw_if_index); + t - ngm->tunnels, format_ip46_address, &t->src, IP46_TYPE_ANY, + format_ip46_address, &t->dst, IP46_TYPE_ANY, t->teid, t->tteid, + encap_vrf_id, t->sw_if_index); s = format (s, "encap-dpo-idx %d ", t->next_dpo.dpoi_index); s = format (s, "decap-next-%U ", format_decap_next, t->decap_next_index); + if (t->is_forwarding) + { + switch (t->forwarding_type) + { + case GTPU_FORWARD_BAD_HEADER: + s = format (s, "forwarding bad-header "); + break; + case GTPU_FORWARD_UNKNOWN_TEID: + s = format (s, "forwarding unknown-teid "); + break; + case GTPU_FORWARD_UNKNOWN_TYPE: + s = format (s, "forwarding unknown-type "); + break; + } + return s; + } + if (t->pdu_extension != 0) + s = format (s, "pdu-enabled qfi %d ", t->qfi); + else + s = format (s, "pdu-disabled "); + if (PREDICT_FALSE (ip46_address_is_multicast (&t->dst))) s = format (s, "mcast-sw-if-idx %d ", t->mcast_sw_if_index); @@ -128,14 +152,12 @@ gtpu_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags) return /* no error */ 0; } -/* *INDENT-OFF* */ VNET_DEVICE_CLASS (gtpu_device_class,static) = { .name = "GTPU", .format_device_name = format_gtpu_name, .format_tx_trace = format_gtpu_encap_trace, .admin_up_down_function = gtpu_interface_admin_up_down, }; -/* *INDENT-ON* */ static u8 * format_gtpu_header_with_length (u8 * s, va_list * args) @@ -145,7 +167,6 @@ format_gtpu_header_with_length (u8 * s, va_list * args) return s; } -/* *INDENT-OFF* */ VNET_HW_INTERFACE_CLASS (gtpu_hw_class) = { .name = "GTPU", @@ -153,7 +174,6 @@ VNET_HW_INTERFACE_CLASS (gtpu_hw_class) = .build_rewrite = default_build_rewrite, .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P, }; -/* *INDENT-ON* */ static void gtpu_tunnel_restack_dpo (gtpu_tunnel_t * t) @@ -224,15 +244,18 @@ const static fib_node_vft_t gtpu_vft = { .fnv_back_walk = gtpu_tunnel_back_walk, }; - -#define foreach_copy_field \ -_(teid) \ -_(tteid) \ -_(mcast_sw_if_index) \ -_(encap_fib_index) \ -_(decap_next_index) \ -_(src) \ -_(dst) +#define foreach_copy_field \ + _ (teid) \ + _ (tteid) \ + _ (mcast_sw_if_index) \ + _ (encap_fib_index) \ + _ (decap_next_index) \ + _ (src) \ + _ (dst) \ + _ (pdu_extension) \ + _ (qfi) \ + _ (is_forwarding) \ + _ (forwarding_type) static void ip_udp_gtpu_rewrite (gtpu_tunnel_t * t, bool is_ip6) @@ -251,12 +274,15 @@ ip_udp_gtpu_rewrite (gtpu_tunnel_t * t, bool is_ip6) udp_header_t *udp; gtpu_header_t *gtpu; + gtpu_ext_with_pdu_session_header_t *gtpu_ext_pdu; + i64 length_adjustment = 0; /* Fixed portion of the (outer) ip header */ if (!is_ip6) { ip4_header_t *ip = &r.h4->ip4; udp = &r.h4->udp; gtpu = &r.h4->gtpu; + gtpu_ext_pdu = &r.h4->gtpu_ext; ip->ip_version_and_header_length = 0x45; ip->ttl = 254; ip->protocol = IP_PROTOCOL_UDP; @@ -272,6 +298,7 @@ ip_udp_gtpu_rewrite (gtpu_tunnel_t * t, bool is_ip6) ip6_header_t *ip = &r.h6->ip6; udp = &r.h6->udp; gtpu = &r.h6->gtpu; + gtpu_ext_pdu = &r.h6->gtpu_ext; ip->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (6 << 28); ip->hop_limit = 255; @@ -290,9 +317,27 @@ ip_udp_gtpu_rewrite (gtpu_tunnel_t * t, bool is_ip6) gtpu->type = GTPU_TYPE_GTPU; gtpu->teid = clib_host_to_net_u32 (t->tteid); + if (t->pdu_extension) + { + gtpu->ver_flags = GTPU_V1_VER | GTPU_PT_GTP | GTPU_E_BIT; + gtpu->next_ext_type = GTPU_EXT_HDR_PDU_SESSION_CONTAINER; + gtpu_ext_pdu->len = 1; + gtpu_ext_pdu->pdu.oct0 = GTPU_PDU_DL_SESSION_TYPE; + gtpu_ext_pdu->pdu.oct1 = t->qfi; + gtpu_ext_pdu->next_header = 0; + } + else + { + // Remove the size of the PDU session header and the optional fields + length_adjustment = -sizeof (gtpu_ext_with_pdu_session_header_t) - 4; + } + t->rewrite = r.rw; - /* Now only support 8-byte gtpu header. TBD */ - _vec_len (t->rewrite) = sizeof (ip4_gtpu_header_t) - 4; + /* Now only support 8-byte gtpu header or 12+4-byte header. TBD */ + if (!is_ip6) + vec_set_len (t->rewrite, sizeof (ip4_gtpu_header_t) + length_adjustment); + else + vec_set_len (t->rewrite, sizeof (ip6_gtpu_header_t) + length_adjustment); return; } @@ -349,6 +394,139 @@ mcast_shared_remove (ip46_address_t * dst) hash_unset_mem_free (>pu_main.mcast_shared, dst); } +int +vnet_gtpu_add_del_forwarding (vnet_gtpu_add_mod_del_tunnel_args_t *a, + u32 *sw_if_indexp) +{ + gtpu_main_t *gtm = >pu_main; + bool is_add; + u32 current_index_value, current_index_value_ipv6; + u32 address_tabel_ipv4; + ip6_address_t address_tabel_ipv6; + u32 sw_if_index = ~0; + bool is_ip6 = !ip46_address_is_ip4 (&a->dst); + int rv; + /* Check for errors */ + if (!a->is_forwarding) + { + return VNET_API_ERROR_INVALID_ARGUMENT; + } + + switch (a->opn) + { + case GTPU_ADD_TUNNEL: + is_add = 1; + break; + case GTPU_DEL_TUNNEL: + is_add = 0; + break; + default: + return VNET_API_ERROR_INVALID_ARGUMENT; + } + + /* Check if the operation is valid, and get the current state if it is. + * Handling multiple flags at once is not supported yet. */ + switch (a->forwarding_type) + { + case GTPU_FORWARD_BAD_HEADER: + current_index_value = gtm->bad_header_forward_tunnel_index_ipv4; + current_index_value_ipv6 = gtm->bad_header_forward_tunnel_index_ipv6; + address_tabel_ipv4 = GTPU_FORWARD_BAD_HEADER_ADDRESS_IPV4; + /* ipv6 is TBD */ + ip6_address_t address_tabel_ipv6_ = GTPU_FORWARD_BAD_HEADER_ADDRESS_IPV6; + address_tabel_ipv6 = address_tabel_ipv6_; + break; + case GTPU_FORWARD_UNKNOWN_TEID: + current_index_value = gtm->unknown_teid_forward_tunnel_index_ipv4; + current_index_value_ipv6 = gtm->unknown_teid_forward_tunnel_index_ipv6; + address_tabel_ipv4 = GTPU_FORWARD_UNKNOWN_TEID_ADDRESS_IPV4; + ip6_address_t address_tabel_ipv6__ = + GTPU_FORWARD_UNKNOWN_TEID_ADDRESS_IPV6; + address_tabel_ipv6 = address_tabel_ipv6__; + break; + case GTPU_FORWARD_UNKNOWN_TYPE: + current_index_value = gtm->unknown_type_forward_tunnel_index_ipv4; + current_index_value_ipv6 = gtm->unknown_type_forward_tunnel_index_ipv6; + address_tabel_ipv4 = GTPU_FORWARD_UNKNOWN_TYPE_ADDRESS_IPV4; + ip6_address_t address_tabel_ipv6___ = + GTPU_FORWARD_UNKNOWN_TYPE_ADDRESS_IPV6; + address_tabel_ipv6 = address_tabel_ipv6___; + break; + default: + return VNET_API_ERROR_INVALID_ARGUMENT; + } + + if (is_ip6) + current_index_value = current_index_value_ipv6; + + /* Check if the existing forwarding rule state conflicts with this operation + */ + if ((is_add) && (current_index_value != ~0)) + { + return VNET_API_ERROR_TUNNEL_EXIST; + } + if (!is_add) + { + if (current_index_value == ~0) + return VNET_API_ERROR_NO_SUCH_ENTRY; + /* Clear the tunnel index before deleting the tunnel itself */ + switch (a->forwarding_type) + { + case GTPU_FORWARD_BAD_HEADER: + gtm->bad_header_forward_tunnel_index_ipv4 = ~0; + break; + case GTPU_FORWARD_UNKNOWN_TEID: + gtm->unknown_teid_forward_tunnel_index_ipv4 = ~0; + break; + case GTPU_FORWARD_UNKNOWN_TYPE: + gtm->unknown_type_forward_tunnel_index_ipv4 = ~0; + break; + } + } + + /* src is the tunnel lookup key, so it is fixed. + * dst is used for the new target */ + a->src = a->dst; + if (is_ip6) + a->dst.ip6 = address_tabel_ipv6; + else + a->dst.ip4.as_u32 = address_tabel_ipv4; + rv = vnet_gtpu_add_mod_del_tunnel (a, &sw_if_index); + + // Forward only if not nil + if (sw_if_indexp) + *sw_if_indexp = sw_if_index; + + if (rv != 0) + return rv; + + /* Update the forwarding tunnel index */ + u32 tunnel_index = is_add ? vnet_gtpu_get_tunnel_index (sw_if_index) : ~0; + switch (a->forwarding_type) + { + case GTPU_FORWARD_BAD_HEADER: + if (is_ip6) + gtm->bad_header_forward_tunnel_index_ipv6 = tunnel_index; + else + gtm->bad_header_forward_tunnel_index_ipv4 = tunnel_index; + + break; + case GTPU_FORWARD_UNKNOWN_TEID: + if (is_ip6) + gtm->unknown_teid_forward_tunnel_index_ipv6 = tunnel_index; + else + gtm->unknown_teid_forward_tunnel_index_ipv4 = tunnel_index; + break; + case GTPU_FORWARD_UNKNOWN_TYPE: + if (is_ip6) + gtm->unknown_type_forward_tunnel_index_ipv6 = tunnel_index; + else + gtm->unknown_type_forward_tunnel_index_ipv4 = tunnel_index; + break; + } + return 0; +} + int vnet_gtpu_add_mod_del_tunnel (vnet_gtpu_add_mod_del_tunnel_args_t * a, u32 * sw_if_indexp) { @@ -419,7 +597,7 @@ int vnet_gtpu_add_mod_del_tunnel vnet_interface_main_t *im = &vnm->interface_main; hw_if_index = gtm->free_gtpu_tunnel_hw_if_indices [vec_len (gtm->free_gtpu_tunnel_hw_if_indices) - 1]; - _vec_len (gtm->free_gtpu_tunnel_hw_if_indices) -= 1; + vec_dec_len (gtm->free_gtpu_tunnel_hw_if_indices, 1); hi = vnet_get_hw_interface (vnm, hw_if_index); hi->dev_instance = t - gtm->tunnels; @@ -473,7 +651,8 @@ int vnet_gtpu_add_mod_del_tunnel fib_prefix_t tun_dst_pfx; vnet_flood_class_t flood_class = VNET_FLOOD_CLASS_TUNNEL_NORMAL; - fib_prefix_from_ip46_addr (&t->dst, &tun_dst_pfx); + fib_protocol_t fp = fib_ip_proto (is_ip6); + fib_prefix_from_ip46_addr (fp, &t->dst, &tun_dst_pfx); if (!ip46_address_is_multicast (&t->dst)) { /* Unicast tunnel - @@ -497,8 +676,6 @@ int vnet_gtpu_add_mod_del_tunnel * with different VNIs, create the output adjacency only if * it does not already exist */ - fib_protocol_t fp = fib_ip_proto (is_ip6); - if (vtep_addr_ref (>m->vtep_table, t->encap_fib_index, &t->dst) == 1) { @@ -524,15 +701,16 @@ int vnet_gtpu_add_mod_del_tunnel * - the forwarding interface is for-us * - the accepting interface is that from the API */ - mfib_table_entry_path_update (t->encap_fib_index, - &mpfx, MFIB_SOURCE_GTPU, &path); + mfib_table_entry_path_update (t->encap_fib_index, &mpfx, + MFIB_SOURCE_GTPU, + MFIB_ENTRY_FLAG_NONE, &path); path.frp_sw_if_index = a->mcast_sw_if_index; path.frp_flags = FIB_ROUTE_PATH_FLAG_NONE; path.frp_mitf_flags = MFIB_ITF_FLAG_ACCEPT; - mfei = mfib_table_entry_path_update (t->encap_fib_index, - &mpfx, - MFIB_SOURCE_GTPU, &path); + mfei = mfib_table_entry_path_update ( + t->encap_fib_index, &mpfx, MFIB_SOURCE_GTPU, + MFIB_ENTRY_FLAG_NONE, &path); /* * Create the mcast adjacency to send traffic to the group @@ -577,6 +755,7 @@ int vnet_gtpu_add_mod_del_tunnel if (a->tteid == 0) return VNET_API_ERROR_INVALID_VALUE; t->tteid = a->tteid; + vec_free (t->rewrite); ip_udp_gtpu_rewrite (t, is_ip6); return 0; } @@ -634,6 +813,22 @@ int vnet_gtpu_add_mod_del_tunnel return 0; } +int +get_combined_counters (u32 sw_if_index, vlib_counter_t *result_rx, + vlib_counter_t *result_tx) +{ + gtpu_main_t *gtm = >pu_main; + vnet_main_t *vnm = gtm->vnet_main; + vnet_interface_main_t *im = &vnm->interface_main; + vlib_get_combined_counter (im->combined_sw_if_counters + + VNET_INTERFACE_COUNTER_RX, + sw_if_index, result_rx); + vlib_get_combined_counter (im->combined_sw_if_counters + + VNET_INTERFACE_COUNTER_TX, + sw_if_index, result_tx); + return 0; +} + static uword get_decap_next_for_node (u32 node_index, u32 ipv4_set) { @@ -689,6 +884,11 @@ gtpu_add_del_tunnel_command_fn (vlib_main_t * vm, u32 decap_next_index = GTPU_INPUT_NEXT_L2_INPUT; u32 teid = 0, tteid = 0; u32 tmp; + /* PDU is disabled by default */ + u8 pdu_extension = 0; + u32 qfi = ~0; + u8 is_forwarding = 0; + u8 forwarding_type = 0; int rv; vnet_gtpu_add_mod_del_tunnel_args_t _a, *a = &_a; u32 tunnel_sw_if_index; @@ -767,6 +967,8 @@ gtpu_add_del_tunnel_command_fn (vlib_main_t * vm, ; else if (unformat (line_input, "upd-tteid %d", &tteid)) opn = GTPU_UPD_TTEID; + else if (unformat (line_input, "qfi %d", &qfi)) + pdu_extension = 1; else { error = clib_error_return (0, "parse error: '%U'", @@ -828,7 +1030,11 @@ gtpu_add_del_tunnel_command_fn (vlib_main_t * vm, error = clib_error_return (0, "next node not found"); goto done; } - + if (pdu_extension == 1 && qfi > 31) + { + error = clib_error_return (0, "qfi max value is 31"); + goto done; + } clib_memset (a, 0, sizeof (*a)); a->opn = opn; @@ -879,29 +1085,30 @@ done: * to span multiple servers. This is done by building an L2 overlay on * top of an L3 network underlay using GTPU tunnels. * - * GTPU can also be used to transport IP packetes as its PDU type to + * GTPU can also be used to transport IP packets as its PDU type to * allow IP forwarding over underlay network, e.g. between RAN and UPF - * for mobility deplyments. + * for mobility deployments. * * @cliexpar * Example of how to create a GTPU Tunnel: - * @cliexcmd{create gtpu tunnel src 10.0.3.1 dst 10.0.3.3 teid 13 tteid 55 encap-vrf-id 7} + * @cliexcmd{create gtpu tunnel src 10.0.3.1 dst 10.0.3.3 teid 13 tteid 55 + * encap-vrf-id 7} * Example of how to delete a GTPU Tunnel: - * @cliexcmd{create gtpu tunnel src 10.0.3.1 dst 10.0.3.3 teid 13 encap-vrf-id 7 del} + * @cliexcmd{create gtpu tunnel src 10.0.3.1 dst 10.0.3.3 teid 13 encap-vrf-id + * 7 del} * Example of how to update tx TEID of a GTPU Tunnel: - * @cliexcmd{create gtpu tunnel src 10.0.3.1 dst 10.0.3.3 encap-vrf-id 7 upd-tteid 55} + * @cliexcmd{create gtpu tunnel src 10.0.3.1 dst 10.0.3.3 encap-vrf-id 7 + * upd-tteid 55} ?*/ -/* *INDENT-OFF* */ VLIB_CLI_COMMAND (create_gtpu_tunnel_command, static) = { .path = "create gtpu tunnel", .short_help = - "create gtpu tunnel src <local-tep-addr>" - " {dst <remote-tep-addr>|group <mcast-addr> <intf-name>}" - " teid <nn> [tteid <nn>] [encap-vrf-id <nn>]" - " [decap-next [l2|ip4|ip6|node <name>]] [del | upd-tteid <nn>]", + "create gtpu tunnel src <local-tep-addr>" + " {dst <remote-tep-addr>|group <mcast-addr> <intf-name>}" + " teid <nn> [tteid <nn>] [encap-vrf-id <nn>]" + " [decap-next [l2|ip4|ip6|node <name>]] [qfi <nn>] [del | upd-tteid <nn>]", .function = gtpu_add_del_tunnel_command_fn, }; -/* *INDENT-ON* */ static clib_error_t * show_gtpu_tunnel_command_fn (vlib_main_t * vm, @@ -928,16 +1135,15 @@ show_gtpu_tunnel_command_fn (vlib_main_t * vm, * @cliexpar * Example of how to display the GTPU Tunnel entries: * @cliexstart{show gtpu tunnel} - * [0] src 10.0.3.1 dst 10.0.3.3 teid 13 tx-teid 55 encap_fib_index 0 sw_if_index 5 decap_next l2 + * [0] src 10.0.3.1 dst 10.0.3.3 teid 13 tx-teid 55 encap_fib_index 0 + sw_if_index 5 decap_next l2 pdu-disabled * @cliexend ?*/ -/* *INDENT-OFF* */ VLIB_CLI_COMMAND (show_gtpu_tunnel_command, static) = { .path = "show gtpu tunnel", .short_help = "show gtpu tunnel", .function = show_gtpu_tunnel_command_fn, }; -/* *INDENT-ON* */ void vnet_int_gtpu_bypass_mode (u32 sw_if_index, u8 is_ip6, u8 is_enable) @@ -1004,7 +1210,7 @@ set_ip4_gtpu_bypass (vlib_main_t * vm, /*? * This command adds the 'ip4-gtpu-bypass' graph node for a given interface. * By adding the IPv4 gtpu-bypass graph node to an interface, the node checks - * for and validate input gtpu packet and bypass ip4-lookup, ip4-local, + * for and validate input gtpu packet and bypass ip4-lookup, ip4-local, * ip4-udp-lookup nodes to speedup gtpu packet forwarding. This node will * cause extra overhead to for non-gtpu packets which is kept at a minimum. * @@ -1043,13 +1249,11 @@ set_ip4_gtpu_bypass (vlib_main_t * vm, * @cliexcmd{set interface ip gtpu-bypass GigabitEthernet2/0/0 del} * @endparblock ?*/ -/* *INDENT-OFF* */ VLIB_CLI_COMMAND (set_interface_ip_gtpu_bypass_command, static) = { .path = "set interface ip gtpu-bypass", .function = set_ip4_gtpu_bypass, .short_help = "set interface ip gtpu-bypass <interface> [del]", }; -/* *INDENT-ON* */ static clib_error_t * set_ip6_gtpu_bypass (vlib_main_t * vm, @@ -1061,7 +1265,7 @@ set_ip6_gtpu_bypass (vlib_main_t * vm, /*? * This command adds the 'ip6-gtpu-bypass' graph node for a given interface. * By adding the IPv6 gtpu-bypass graph node to an interface, the node checks - * for and validate input gtpu packet and bypass ip6-lookup, ip6-local, + * for and validate input gtpu packet and bypass ip6-lookup, ip6-local, * ip6-udp-lookup nodes to speedup gtpu packet forwarding. This node will * cause extra overhead to for non-gtpu packets which is kept at a minimum. * @@ -1100,13 +1304,11 @@ set_ip6_gtpu_bypass (vlib_main_t * vm, * @cliexcmd{set interface ip6 gtpu-bypass GigabitEthernet2/0/0 del} * @endparblock ?*/ -/* *INDENT-OFF* */ VLIB_CLI_COMMAND (set_interface_ip6_gtpu_bypass_command, static) = { .path = "set interface ip6 gtpu-bypass", .function = set_ip6_gtpu_bypass, .short_help = "set interface ip6 gtpu-bypass <interface> [del]", }; -/* *INDENT-ON* */ int vnet_gtpu_add_del_rx_flow (u32 hw_if_index, u32 t_index, int is_add) @@ -1229,14 +1431,145 @@ gtpu_offload_command_fn (vlib_main_t * vm, } -/* *INDENT-OFF* */ VLIB_CLI_COMMAND (gtpu_offload_command, static) = { .path = "set flow-offload gtpu", .short_help = "set flow-offload gtpu hw <inerface-name> rx <tunnel-name> [del]", .function = gtpu_offload_command_fn, }; -/* *INDENT-ON* */ + +static clib_error_t * +gtpu_forward_command_fn (vlib_main_t *vm, unformat_input_t *input, + vlib_cli_command_t *cmd) +{ + unformat_input_t _line_input, *line_input = &_line_input; + + /* Get a line of input. */ + if (!unformat_user (input, unformat_line_input, line_input)) + return 0; + + u32 tunnel_sw_if_index; + clib_error_t *error = NULL; + + u32 decap_next_index = GTPU_INPUT_NEXT_L2_INPUT; + + int is_add = 1; + u8 dst_set = 0; + u8 ipv4_set = 0; + u8 ipv6_set = 0; + ip46_address_t src, dst; + u32 encap_fib_index = 0; + u32 mcast_sw_if_index = ~0; + u32 teid = 0, tteid = 0; + u32 tmp; + /* PDU is disabled by default */ + u8 pdu_extension = 0; + u32 qfi = ~0; + u8 is_forwarding = 1; + u8 forwarding_type = 0; + int rv; + vnet_gtpu_add_mod_del_tunnel_args_t _a, *a = &_a; + + /* Cant "universally zero init" (={0}) due to GCC bug 53119 */ + clib_memset (&src, 0, sizeof src); + clib_memset (&dst, 0, sizeof dst); + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "dst %U", unformat_ip4_address, &dst.ip4)) + { + dst_set = 1; + ipv4_set = 1; + } + else if (unformat (line_input, "dst %U", unformat_ip6_address, &dst.ip6)) + { + dst_set = 1; + ipv6_set = 1; + } + else if (unformat (line_input, "decap-next %U", unformat_decap_next, + &decap_next_index, ipv4_set)) + ; + else if (unformat (line_input, "encap-vrf-id %d", &tmp)) + { + encap_fib_index = fib_table_find (fib_ip_proto (ipv6_set), tmp); + if (encap_fib_index == ~0) + { + error = + clib_error_return (0, "nonexistent encap-vrf-id %d", tmp); + goto done; + } + } + else if (unformat (line_input, "del")) + is_add = 0; + else if (unformat (line_input, "bad-header")) + forwarding_type |= GTPU_FORWARD_BAD_HEADER; + else if (unformat (line_input, "unknown-teid")) + forwarding_type |= GTPU_FORWARD_UNKNOWN_TEID; + else if (unformat (line_input, "unknown-type")) + forwarding_type |= GTPU_FORWARD_UNKNOWN_TYPE; + else + { + error = clib_error_return (0, "unknown input `%U'", + format_unformat_error, line_input); + goto done; + } + } + + if (!dst_set) + { + error = clib_error_return (0, "dst must be set to a valid IP address"); + goto done; + } + + a->opn = is_add ? GTPU_ADD_TUNNEL : GTPU_DEL_TUNNEL; +#define _(x) a->x = x; + foreach_copy_field; +#undef _ + + rv = vnet_gtpu_add_del_forwarding (a, &tunnel_sw_if_index); + + switch (rv) + { + case 0: + if (is_add) + vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name, + vnet_get_main (), tunnel_sw_if_index); + break; + + case VNET_API_ERROR_TUNNEL_EXIST: + error = clib_error_return (0, "tunnel already exists..."); + goto done; + + case VNET_API_ERROR_NO_SUCH_ENTRY: + error = clib_error_return (0, "tunnel does not exist..."); + goto done; + + case VNET_API_ERROR_INVALID_ARGUMENT: + error = + clib_error_return (0, "one and only one of unknown-teid, unknown-type " + "or bad-header must be specified"); + goto done; + + default: + error = + clib_error_return (0, "vnet_gtpu_add_del_tunnel returned %d", rv); + goto done; + } + +done: + unformat_free (line_input); + + return error; +} + +VLIB_CLI_COMMAND (gtpu_forward_command, static) = { + .path = "create gtpu forward", + .short_help = + "create gtpu forward dst <local-tep-addr> " + "{unknown-teid|unknown-type|bad-header} " + "[decap-next [l2|ip4|ip6|node <name>]] [encap-vrf-id <nn>] [del]", + .function = gtpu_forward_command_fn, +}; clib_error_t * gtpu_init (vlib_main_t * vm) @@ -1258,19 +1591,25 @@ gtpu_init (vlib_main_t * vm) sizeof (ip46_address_t), sizeof (mcast_shared_t)); - gtm->fib_node_type = fib_node_register_new_type (>pu_vft); + gtm->fib_node_type = fib_node_register_new_type ("gtpu", >pu_vft); + + /* Clear forward tunnels */ + gtm->bad_header_forward_tunnel_index_ipv4 = ~0; + gtm->unknown_teid_forward_tunnel_index_ipv4 = ~0; + gtm->unknown_type_forward_tunnel_index_ipv4 = ~0; + gtm->bad_header_forward_tunnel_index_ipv6 = ~0; + gtm->unknown_teid_forward_tunnel_index_ipv6 = ~0; + gtm->unknown_type_forward_tunnel_index_ipv6 = ~0; return 0; } VLIB_INIT_FUNCTION (gtpu_init); -/* *INDENT-OFF* */ VLIB_PLUGIN_REGISTER () = { .version = VPP_BUILD_VER, .description = "GPRS Tunnelling Protocol, User Data (GTPv1-U)", }; -/* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON |