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;
}
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);
.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)
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;
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;
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_set_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;
}
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)
{
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)
{
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;
;
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'",
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;
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* */
* @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* */
};
/* *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)
{
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;
}
Code Review / vpp.git / blobdiff