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authorHongjun Ni <hongjun.ni@intel.com>2017-08-29 01:00:42 +0800
committerDave Wallace <dwallacelf@gmail.com>2017-12-18 13:55:45 +0000
commitc91f50242f384da67ad7a634dbe26276e67efd91 (patch)
treee784ffaf15d3f5240fdef44f522feb5c4307b54d /src/plugins/kubeproxy/kp_test.c
parent42998828c9bfa419ff3d9c68fd50cd148e24d4e4 (diff)
Support kube-proxy data plane
This plugin provides kube-proxy data plane on user space, which is used to replace linux kernal's kube-proxy based on iptables. The idea is largely inspired from VPP LB plugin. Currently, kube-proxy plugin supports three service types: 1) Cluster IP plus Port: support any protocols, including TCP, UDP. 2) Node IP plus Node Port: currently only support UDP. 3) External Load Balancer. Please refer to kp_plugin_doc.md for details. Change-Id: I36690e417dd26ad5ec1bd77c7ea4b8100416cac6 Signed-off-by: Hongjun Ni <hongjun.ni@intel.com>
Diffstat (limited to 'src/plugins/kubeproxy/kp_test.c')
-rw-r--r--src/plugins/kubeproxy/kp_test.c268
1 files changed, 268 insertions, 0 deletions
diff --git a/src/plugins/kubeproxy/kp_test.c b/src/plugins/kubeproxy/kp_test.c
new file mode 100644
index 00000000000..895a6adedaa
--- /dev/null
+++ b/src/plugins/kubeproxy/kp_test.c
@@ -0,0 +1,268 @@
+/*
+ * Copyright (c) 2016 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 "POD IS" BPODIS,
+ * 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 <vat/vat.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vppinfra/error.h>
+#include <kubeproxy/kp.h>
+
+#define __plugin_msg_base kp_test_main.msg_id_base
+#include <vlibapi/vat_helper_macros.h>
+
+//TODO: Move that to vat/plugin_api.c
+//////////////////////////
+uword unformat_ip46_address (unformat_input_t * input, va_list * args)
+{
+ ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
+ ip46_type_t type = va_arg (*args, ip46_type_t);
+ if ((type != IP46_TYPE_IP6) &&
+ unformat(input, "%U", unformat_ip4_address, &ip46->ip4)) {
+ ip46_address_mask_ip4(ip46);
+ return 1;
+ } else if ((type != IP46_TYPE_IP4) &&
+ unformat(input, "%U", unformat_ip6_address, &ip46->ip6)) {
+ return 1;
+ }
+ return 0;
+}
+uword unformat_ip46_prefix (unformat_input_t * input, va_list * args)
+{
+ ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
+ u8 *len = va_arg (*args, u8 *);
+ ip46_type_t type = va_arg (*args, ip46_type_t);
+
+ u32 l;
+ if ((type != IP46_TYPE_IP6) && unformat(input, "%U/%u", unformat_ip4_address, &ip46->ip4, &l)) {
+ if (l > 32)
+ return 0;
+ *len = l + 96;
+ ip46->pad[0] = ip46->pad[1] = ip46->pad[2] = 0;
+ } else if ((type != IP46_TYPE_IP4) && unformat(input, "%U/%u", unformat_ip6_address, &ip46->ip6, &l)) {
+ if (l > 128)
+ return 0;
+ *len = l;
+ } else {
+ return 0;
+ }
+ return 1;
+}
+/////////////////////////
+
+#define vl_msg_id(n,h) n,
+typedef enum {
+#include <kubeproxy/kp.api.h>
+ /* We'll want to know how many messages IDs we need... */
+ VL_MSG_FIRST_AVAILABLE,
+} vl_msg_id_t;
+#undef vl_msg_id
+
+/* define message structures */
+#define vl_typedefs
+#include <kubeproxy/kp.api.h>
+#undef vl_typedefs
+
+/* declare message handlers for each api */
+
+#define vl_endianfun /* define message structures */
+#include <kubeproxy/kp.api.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...)
+#define vl_printfun
+#include <kubeproxy/kp.api.h>
+#undef vl_printfun
+
+/* Get the API version number. */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <kubeproxy/kp.api.h>
+#undef vl_api_version
+
+typedef struct {
+ /* API message ID base */
+ u16 msg_id_base;
+ vat_main_t *vat_main;
+} kp_test_main_t;
+
+kp_test_main_t kp_test_main;
+
+#define foreach_standard_reply_retval_handler \
+_(kp_conf_reply) \
+_(kp_add_del_vip_reply) \
+_(kp_add_del_pod_reply)
+
+#define _(n) \
+ static void vl_api_##n##_t_handler \
+ (vl_api_##n##_t * mp) \
+ { \
+ vat_main_t * vam = kp_test_main.vat_main; \
+ i32 retval = ntohl(mp->retval); \
+ if (vam->async_mode) { \
+ vam->async_errors += (retval < 0); \
+ } else { \
+ vam->retval = retval; \
+ vam->result_ready = 1; \
+ } \
+ }
+foreach_standard_reply_retval_handler;
+#undef _
+
+/*
+ * Table of message reply handlers, must include boilerplate handlers
+ * we just generated
+ */
+#define foreach_vpe_api_reply_msg \
+ _(KP_CONF_REPLY, kp_conf_reply) \
+ _(KP_ADD_DEL_VIP_REPLY, kp_add_del_vip_reply) \
+ _(KP_ADD_DEL_POD_REPLY, kp_add_del_pod_reply)
+
+static int api_kp_conf (vat_main_t * vam)
+{
+ unformat_input_t *i = vam->input;
+ vl_api_kp_conf_t mps, *mp;
+ int ret;
+
+ if (!unformat(i, "%u %u",
+ &mps.sticky_buckets_per_core,
+ &mps.flow_timeout)) {
+ errmsg ("invalid arguments\n");
+ return -99;
+ }
+
+ M(KP_CONF, mp);
+ S(mp);
+ W (ret);
+ return ret;
+}
+
+static int api_kp_add_del_vip (vat_main_t * vam)
+{
+ unformat_input_t * i = vam->input;
+ vl_api_kp_add_del_vip_t mps, *mp;
+ int ret;
+ mps.is_del = 0;
+ mps.is_nat4 = 0;
+
+ if (!unformat(i, "%U",
+ unformat_ip46_prefix, mps.ip_prefix, &mps.prefix_length, IP46_TYPE_ANY)) {
+ errmsg ("invalid prefix\n");
+ return -99;
+ }
+
+ if (unformat(i, "nat4")) {
+ mps.is_nat4 = 1;
+ } else if (unformat(i, "nat6")) {
+ mps.is_nat4 = 0;
+ } else {
+ errmsg ("no nat\n");
+ return -99;
+ }
+
+ if (!unformat(i, "%d", &mps.new_flows_table_length)) {
+ errmsg ("no table lentgh\n");
+ return -99;
+ }
+
+ if (unformat(i, "del")) {
+ mps.is_del = 1;
+ }
+
+ M(KP_ADD_DEL_VIP, mp);
+ S(mp);
+ W (ret);
+ return ret;
+}
+
+static int api_kp_add_del_pod (vat_main_t * vam)
+{
+ unformat_input_t * i = vam->input;
+ vl_api_kp_add_del_pod_t mps, *mp;
+ int ret;
+ mps.is_del = 0;
+
+ if (!unformat(i, "%U %U",
+ unformat_ip46_prefix, mps.vip_ip_prefix, &mps.vip_prefix_length, IP46_TYPE_ANY,
+ unformat_ip46_address, mps.pod_address)) {
+ errmsg ("invalid prefix or address\n");
+ return -99;
+ }
+
+ if (unformat(i, "del")) {
+ mps.is_del = 1;
+ }
+
+ M(KP_ADD_DEL_POD, mp);
+ S(mp);
+ W (ret);
+ return ret;
+}
+
+/*
+ * List of messages that the api test plugin sends,
+ * and that the data plane plugin processes
+ */
+#define foreach_vpe_api_msg \
+_(kp_conf, "<sticky_buckets_per_core> <flow_timeout>") \
+_(kp_add_del_vip, "<ip-prefix> <port> <target_port> <node_port> " \
+ "[nat4|nat6] <new_table_len> [del]") \
+_(kp_add_del_pod, "<vip-ip-prefix> <address> [del]")
+
+static void
+kp_vat_api_hookup (vat_main_t *vam)
+{
+ kp_test_main_t * kptm = &kp_test_main;
+ /* Hook up handlers for replies from the data plane plug-in */
+#define _(N,n) \
+ vl_msg_api_set_handlers((VL_API_##N + kptm->msg_id_base), \
+ #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_reply_msg;
+#undef _
+
+ /* API messages we can send */
+#define _(n,h) hash_set_mem (vam->function_by_name, #n, api_##n);
+ foreach_vpe_api_msg;
+#undef _
+
+ /* Help strings */
+#define _(n,h) hash_set_mem (vam->help_by_name, #n, h);
+ foreach_vpe_api_msg;
+#undef _
+}
+
+clib_error_t * vat_plugin_register (vat_main_t *vam)
+{
+ kp_test_main_t * kptm = &kp_test_main;
+
+ u8 * name;
+
+ kptm->vat_main = vam;
+
+ /* Ask the vpp engine for the first assigned message-id */
+ name = format (0, "kp_%08x%c", api_version, 0);
+ kptm->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name);
+
+ if (kptm->msg_id_base != (u16) ~0)
+ kp_vat_api_hookup (vam);
+
+ vec_free(name);
+
+ return 0;
+}