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authorChenmin Sun <chenmin.sun@intel.com>2020-07-27 17:54:40 +0800
committerDamjan Marion <dmarion@me.com>2020-08-25 12:13:43 +0000
commitd0236f725d31e5e5d23e5f207b1a317fcd96a964 (patch)
tree9ff39dfeb54be6cc17899c999bb6a210a2585060 /src/vnet/flow/flow_api.c
parent4fa3aad33fffadec7b7614dc68c8f1d3d9f311c9 (diff)
flow: add vnet/flow formal API
This patch adds the API for vnet/flow infra. Currently this API supports the below flow types: VNET_FLOW_TYPE_IP4_N_TUPLE VNET_FLOW_TYPE_IP6_N_TUPLE VNET_FLOW_TYPE_IP4_N_TUPLE_TAGGED VNET_FLOW_TYPE_IP6_N_TUPLE_TAGGED VNET_FLOW_TYPE_IP4_L2TPV3OIP VNET_FLOW_TYPE_IP4_IPSEC_ESP VNET_FLOW_TYPE_IP4_IPSEC_AH VNET_FLOW_TYPE_IP4_GTPU All the above flows are tested with Intel E810/X710 NIC Type: feature Signed-off-by: Chenmin Sun <chenmin.sun@intel.com> Change-Id: Icb8ae20cab9bdad6b120dddc3bd4fb1d85634f3f
Diffstat (limited to 'src/vnet/flow/flow_api.c')
-rw-r--r--src/vnet/flow/flow_api.c340
1 files changed, 340 insertions, 0 deletions
diff --git a/src/vnet/flow/flow_api.c b/src/vnet/flow/flow_api.c
new file mode 100644
index 00000000000..bd077d79df8
--- /dev/null
+++ b/src/vnet/flow/flow_api.c
@@ -0,0 +1,340 @@
+/*
+ *------------------------------------------------------------------
+ * flow_api.c - flow api
+ *
+ * Copyright (c) 2020 Intel and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *------------------------------------------------------------------
+ */
+
+#include <stddef.h>
+
+#include <vnet/vnet.h>
+#include <vlibmemory/api.h>
+#include <vnet/interface.h>
+#include <vnet/api_errno.h>
+#include <vnet/flow/flow.h>
+#include <vnet/fib/fib_table.h>
+#include <vnet/tunnel/tunnel_types_api.h>
+#include <vnet/ip/ip_types_api.h>
+#include <vnet/vnet_msg_enum.h>
+
+#define vl_typedefs /* define message structures */
+#include <vnet/vnet_all_api_h.h>
+#undef vl_typedefs
+
+#define vl_endianfun /* define message structures */
+#include <vnet/vnet_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <vnet/vnet_all_api_h.h>
+#undef vl_printfun
+
+#include <vlibapi/api_helper_macros.h>
+
+#define foreach_vpe_api_msg \
+_(FLOW_ADD, flow_add) \
+_(FLOW_DEL, flow_del) \
+_(FLOW_ENABLE, flow_enable) \
+_(FLOW_DISABLE, flow_disable)
+
+static inline void
+ipv4_addr_and_mask_convert (vl_api_ip4_address_and_mask_t * vl_api_addr,
+ ip4_address_and_mask_t * vnet_addr)
+{
+ clib_memcpy (vnet_addr, vl_api_addr, sizeof (*vnet_addr));
+}
+
+static inline void
+ipv6_addr_and_mask_convert (vl_api_ip6_address_and_mask_t * vl_api_addr,
+ ip6_address_and_mask_t * vnet_addr)
+{
+ clib_memcpy (vnet_addr, vl_api_addr, sizeof (*vnet_addr));
+}
+
+static inline void
+port_and_mask_convert (vl_api_ip_port_and_mask_t * vl_api_port,
+ ip_port_and_mask_t * vnet_port)
+{
+ vnet_port->port = ntohs (vl_api_port->port);
+ vnet_port->mask = ntohs (vl_api_port->mask);
+}
+
+static inline void
+ipv4_n_tuple_flow_convert (vl_api_flow_ip4_n_tuple_t * vl_api_flow,
+ vnet_flow_ip4_n_tuple_t * f)
+{
+ ipv4_addr_and_mask_convert (&vl_api_flow->src_addr, &f->src_addr);
+ ipv4_addr_and_mask_convert (&vl_api_flow->dst_addr, &f->dst_addr);
+
+ port_and_mask_convert (&vl_api_flow->src_port, &f->src_port);
+ port_and_mask_convert (&vl_api_flow->dst_port, &f->dst_port);
+
+ f->protocol = (ip_protocol_t) vl_api_flow->protocol;
+}
+
+static void
+ipv6_n_tuple_flow_convert (vl_api_flow_ip6_n_tuple_t * vl_api_flow,
+ vnet_flow_ip6_n_tuple_t * f)
+{
+ ipv6_addr_and_mask_convert (&vl_api_flow->src_addr, &f->src_addr);
+ ipv6_addr_and_mask_convert (&vl_api_flow->dst_addr, &f->dst_addr);
+
+ port_and_mask_convert (&vl_api_flow->src_port, &f->src_port);
+ port_and_mask_convert (&vl_api_flow->dst_port, &f->dst_port);
+
+ f->protocol = (ip_protocol_t) vl_api_flow->protocol;
+}
+
+static inline void
+ipv4_n_tuple_tagged_flow_convert (vl_api_flow_ip4_n_tuple_tagged_t *
+ vl_api_flow,
+ vnet_flow_ip4_n_tuple_tagged_t * f)
+{
+ return ipv4_n_tuple_flow_convert ((vl_api_flow_ip4_n_tuple_t *) vl_api_flow,
+ (vnet_flow_ip4_n_tuple_t *) f);
+}
+
+static inline void
+ipv6_n_tuple_tagged_flow_convert (vl_api_flow_ip6_n_tuple_tagged_t *
+ vl_api_flow,
+ vnet_flow_ip6_n_tuple_tagged_t * f)
+{
+ return ipv6_n_tuple_flow_convert ((vl_api_flow_ip6_n_tuple_t *) vl_api_flow,
+ (vnet_flow_ip6_n_tuple_t *) f);
+}
+
+static inline void
+ipv4_l2tpv3oip_flow_convert (vl_api_flow_ip4_l2tpv3oip_t * vl_api_flow,
+ vnet_flow_ip4_l2tpv3oip_t * f)
+{
+ ipv4_addr_and_mask_convert (&vl_api_flow->src_addr, &f->src_addr);
+ ipv4_addr_and_mask_convert (&vl_api_flow->dst_addr, &f->dst_addr);
+
+ f->protocol = (ip_protocol_t) vl_api_flow->protocol;
+ f->session_id = ntohl (vl_api_flow->session_id);
+}
+
+static inline void
+ipv4_ipsec_esp_flow_convert (vl_api_flow_ip4_ipsec_esp_t * vl_api_flow,
+ vnet_flow_ip4_ipsec_esp_t * f)
+{
+ ipv4_addr_and_mask_convert (&vl_api_flow->src_addr, &f->src_addr);
+ ipv4_addr_and_mask_convert (&vl_api_flow->dst_addr, &f->dst_addr);
+
+ f->protocol = (ip_protocol_t) vl_api_flow->protocol;
+ f->spi = ntohl (vl_api_flow->spi);
+}
+
+static inline void
+ipv4_ipsec_ah_flow_convert (vl_api_flow_ip4_ipsec_ah_t * vl_api_flow,
+ vnet_flow_ip4_ipsec_ah_t * f)
+{
+ ipv4_addr_and_mask_convert (&vl_api_flow->src_addr, &f->src_addr);
+ ipv4_addr_and_mask_convert (&vl_api_flow->dst_addr, &f->dst_addr);
+
+ f->protocol = (ip_protocol_t) vl_api_flow->protocol;
+ f->spi = ntohl (vl_api_flow->spi);
+}
+
+static inline void
+ipv4_gtpu_flow_convert (vl_api_flow_ip4_gtpu_t * vl_api_flow,
+ vnet_flow_ip4_gtpu_t * f)
+{
+ ipv4_addr_and_mask_convert (&vl_api_flow->src_addr, &f->src_addr);
+ ipv4_addr_and_mask_convert (&vl_api_flow->dst_addr, &f->dst_addr);
+
+ port_and_mask_convert (&vl_api_flow->src_port, &f->src_port);
+ port_and_mask_convert (&vl_api_flow->dst_port, &f->dst_port);
+
+ f->protocol = (ip_protocol_t) vl_api_flow->protocol;
+ f->teid = ntohl (vl_api_flow->teid);
+}
+
+static inline void
+ipv4_gtpc_flow_convert (vl_api_flow_ip4_gtpc_t * vl_api_flow,
+ vnet_flow_ip4_gtpc_t * f)
+{
+ ipv4_addr_and_mask_convert (&vl_api_flow->src_addr, &f->src_addr);
+ ipv4_addr_and_mask_convert (&vl_api_flow->dst_addr, &f->dst_addr);
+
+ port_and_mask_convert (&vl_api_flow->src_port, &f->src_port);
+ port_and_mask_convert (&vl_api_flow->dst_port, &f->dst_port);
+
+ f->protocol = (ip_protocol_t) vl_api_flow->protocol;
+ f->teid = ntohl (vl_api_flow->teid);
+}
+
+static void
+vl_api_flow_add_t_handler (vl_api_flow_add_t * mp)
+{
+ vl_api_flow_add_reply_t *rmp;
+ int rv = 0;
+ vnet_flow_t flow;
+ u32 flow_index = ~0;
+ vl_api_flow_rule_t *f = &mp->flow;
+
+ vnet_main_t *vnm = vnet_get_main ();
+
+ flow.type = ntohl (f->type);
+ flow.actions = ntohl (f->actions);
+ flow.mark_flow_id = ntohl (f->mark_flow_id);
+ flow.redirect_node_index = ntohl (f->redirect_node_index);
+ flow.redirect_device_input_next_index =
+ ntohl (f->redirect_device_input_next_index);
+ flow.redirect_queue = ntohl (f->redirect_queue);
+ flow.buffer_advance = ntohl (f->buffer_advance);
+
+ switch (flow.type)
+ {
+ case VNET_FLOW_TYPE_IP4_N_TUPLE:
+ ipv4_n_tuple_flow_convert (&f->flow.ip4_n_tuple, &flow.ip4_n_tuple);
+ break;
+ case VNET_FLOW_TYPE_IP6_N_TUPLE:
+ ipv6_n_tuple_flow_convert (&f->flow.ip6_n_tuple, &flow.ip6_n_tuple);
+ break;
+ case VNET_FLOW_TYPE_IP4_N_TUPLE_TAGGED:
+ ipv4_n_tuple_tagged_flow_convert (&f->flow.ip4_n_tuple_tagged,
+ &flow.ip4_n_tuple_tagged);
+ break;
+ case VNET_FLOW_TYPE_IP6_N_TUPLE_TAGGED:
+ ipv6_n_tuple_tagged_flow_convert (&f->flow.ip6_n_tuple_tagged,
+ &flow.ip6_n_tuple_tagged);
+ break;
+ case VNET_FLOW_TYPE_IP4_L2TPV3OIP:
+ ipv4_l2tpv3oip_flow_convert (&f->flow.ip4_l2tpv3oip,
+ &flow.ip4_l2tpv3oip);
+ break;
+ case VNET_FLOW_TYPE_IP4_IPSEC_ESP:
+ ipv4_ipsec_esp_flow_convert (&f->flow.ip4_ipsec_esp,
+ &flow.ip4_ipsec_esp);
+ break;
+ case VNET_FLOW_TYPE_IP4_IPSEC_AH:
+ ipv4_ipsec_ah_flow_convert (&f->flow.ip4_ipsec_ah, &flow.ip4_ipsec_ah);
+ break;
+ case VNET_FLOW_TYPE_IP4_GTPU:
+ ipv4_gtpu_flow_convert (&f->flow.ip4_gtpu, &flow.ip4_gtpu);
+ break;
+ case VNET_FLOW_TYPE_IP4_GTPC:
+ ipv4_gtpc_flow_convert (&f->flow.ip4_gtpc, &flow.ip4_gtpc);
+ break;
+ default:
+ rv = VNET_FLOW_ERROR_NOT_SUPPORTED;
+ goto out;
+ break;
+
+ }
+
+ rv = vnet_flow_add (vnm, &flow, &flow_index);
+
+ goto out;
+out:
+ /* *INDENT-OFF* */
+ REPLY_MACRO2(VL_API_FLOW_ADD_REPLY,
+ ({
+ rmp->flow_index = ntohl (flow_index);
+ }));
+}
+
+static void
+vl_api_flow_del_t_handler (vl_api_flow_del_t * mp)
+{
+ vl_api_flow_add_reply_t *rmp;
+ int rv = 0;
+
+ vnet_main_t *vnm = vnet_get_main();
+ rv = vnet_flow_del(vnm, ntohl(mp->flow_index));
+
+ REPLY_MACRO (VL_API_FLOW_DEL_REPLY);
+}
+
+static void
+vl_api_flow_enable_t_handler (vl_api_flow_enable_t * mp)
+{
+ vl_api_flow_add_reply_t *rmp;
+ int rv = 0;
+
+ vnet_main_t *vnm = vnet_get_main();
+ rv = vnet_flow_enable(vnm, ntohl(mp->flow_index), ntohl(mp->hw_if_index));
+
+ REPLY_MACRO (VL_API_FLOW_ENABLE_REPLY);
+}
+
+static void
+vl_api_flow_disable_t_handler (vl_api_flow_disable_t * mp)
+{
+ vl_api_flow_add_reply_t *rmp;
+ int rv = 0;
+
+ vnet_main_t *vnm = vnet_get_main();
+ rv = vnet_flow_disable(vnm, ntohl(mp->flow_index), ntohl(mp->hw_if_index));
+
+ REPLY_MACRO (VL_API_FLOW_DISABLE_REPLY);
+}
+
+#define vl_msg_name_crc_list
+#include <vnet/flow/flow.api.h>
+#undef vl_msg_name_crc_list
+
+/*
+ * flow_api_hookup
+ * Add vpe's API message handlers to the table.
+ * vlib has already mapped shared memory and
+ * added the client registration handlers.
+ * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
+ */
+
+
+static void
+setup_message_id_table (api_main_t * am)
+{
+#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
+ foreach_vl_msg_name_crc_flow;
+#undef _
+}
+
+static clib_error_t *
+hw_flow_api_hookup (vlib_main_t * vm)
+{
+ api_main_t *am = vlibapi_get_main ();
+
+#define _(N,n) \
+ vl_msg_api_set_handlers(VL_API_##N, #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_vpe_api_msg;
+#undef _
+
+ /*
+ * Set up the (msg_name, crc, message-id) table
+ */
+ setup_message_id_table (am);
+
+ return 0;
+}
+
+VLIB_API_INIT_FUNCTION (hw_flow_api_hookup);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */