Initial commit of vpp code.

Change-Id: Ib246f1fbfce93274020ee93ce461e3d8bd8b9f17
Signed-off-by: Ed Warnicke <eaw@cisco.com>

1 files changed, 219 insertions, 0 deletions

diff --git a/vpp/api/test_ha.c b/vpp/api/test_ha.c
new file mode 100644
index 00000000..0c66394b
--- /dev/null
+++ b/vpp/api/test_ha.c
@@ -0,0 +1,219 @@
+/*
+ *------------------------------------------------------------------
+ * api.c - message handler registration
+ * 
+ * Copyright (c) 2010 Cisco 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 <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <netinet/in.h>
+#include <signal.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <time.h>
+#include <fcntl.h>
+#include <string.h>
+#include <vppinfra/clib.h>
+#include <vppinfra/vec.h>
+#include <vppinfra/hash.h>
+#include <vppinfra/bitmap.h>
+#include <vppinfra/fifo.h>
+#include <vppinfra/time.h>
+#include <vppinfra/mheap.h>
+#include <vppinfra/heap.h>
+#include <vppinfra/pool.h>
+#include <vppinfra/format.h>
+#include <vppinfra/error.h>
+
+#include <vnet/vnet.h>
+#include <vlib/vlib.h>
+#include <vlib/unix/unix.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <svm.h>
+#include <svmdb.h>
+
+#include <api/vpe_msg_enum.h>
+
+#include <vnet/ip/ip.h>
+
+#define f64_endian(a)
+#define f64_print(a,b)
+
+#define vl_typedefs             /* define message structures */
+#include <api/vpe_all_api_h.h> 
+#undef vl_typedefs
+
+#define vl_endianfun             /* define message structures */
+#include <api/vpe_all_api_h.h> 
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) 
+#define vl_printfun
+#include <api/vpe_all_api_h.h>
+#undef vl_printfun
+
+vl_shmem_hdr_t *shmem_hdr;
+
+typedef struct {
+    u32 pings_sent;
+    u32 pings_replied;
+    volatile u32 signal_received;
+
+    /* convenience */
+    unix_shared_memory_queue_t * vl_input_queue;
+    u32 my_client_index;
+    svmdb_client_t * svmdb_client;
+} test_main_t;
+
+test_main_t test_main;
+
+static void vl_api_control_ping_reply_t_handler 
+(vl_api_control_ping_reply_t * mp)
+{
+    test_main_t * tm = &test_main;
+
+    fformat(stdout, "control ping reply from pid %d\n",
+            ntohl (mp->vpe_pid));
+    tm->pings_replied++;
+}
+
+void vlib_cli_output (struct vlib_main_t * vm, char * fmt, ...)
+{
+    clib_warning ("BUG: vlib_cli_output callled...");
+}
+
+#define foreach_api_msg                         \
+_(CONTROL_PING_REPLY,control_ping_reply)
+
+void ping (test_main_t *tm)
+{
+    vl_api_control_ping_t * mp;
+
+    mp = vl_msg_api_alloc (sizeof (*mp));
+    memset(mp, 0, sizeof (*mp));
+    mp->_vl_msg_id = ntohs (VL_API_CONTROL_PING);
+    mp->client_index = tm->my_client_index;
+    mp->context = 0xdeadbeef;
+    
+    vl_msg_api_send_shmem (tm->vl_input_queue, (u8 *)&mp);
+}
+
+static void noop_handler (void *notused) { }
+
+int connect_to_vpe(char *name)
+{
+    int rv=0;
+    test_main_t * tm = &test_main;
+    api_main_t * am = &api_main;
+
+    rv = vl_client_connect_to_vlib("/vpe-api", name, 32);
+    if (rv < 0)
+        return rv;
+
+#define _(N,n)                                                  \
+    vl_msg_api_set_handlers(VL_API_##N, #n,                     \
+                           vl_api_##n##_t_handler,              \
+                           noop_handler,                        \
+                           vl_api_##n##_t_endian,               \
+                           vl_api_##n##_t_print,                \
+                           sizeof(vl_api_##n##_t), 1); 
+    foreach_api_msg;
+#undef _
+
+    shmem_hdr = api_main.shmem_hdr;
+    tm->vl_input_queue = shmem_hdr->vl_input_queue;
+    tm->my_client_index = am->my_client_index;
+    return 0;
+}
+
+int disconnect_from_vpe(void)
+{
+    vl_client_disconnect_from_vlib();
+    
+    return 0;
+}
+
+void signal_handler (int signo)
+{
+    test_main_t * tm = &test_main;
+
+    tm->signal_received = 1;
+}
+
+
+int main (int argc, char **argv)
+{
+    test_main_t * tm = &test_main;
+    api_main_t * am = &api_main;
+    u32 swt_pid = 0;
+    int connected = 0;
+
+    signal (SIGINT, signal_handler);
+
+    while (1) {
+        if (tm->signal_received)
+            break;
+        
+        if (am->shmem_hdr)
+            swt_pid = am->shmem_hdr->vl_pid;
+        
+        /* If kill returns 0, the vpe-f process is alive */
+        if (kill(swt_pid, 0) == 0) {
+            /* Try to connect */
+            if (connected == 0) {
+                fformat (stdout, "Connect to VPE-f\n");
+                if (connect_to_vpe("test_ha_client") >= 0) {
+                    tm->pings_sent = 0;
+                    tm->pings_replied = 0;
+                    connected = 1;
+                } else {
+                    fformat(stdout, "Connect failed, sleep and retry...\n");
+                    sleep(1);
+                    continue;
+                }
+            }
+            tm->pings_sent ++;
+            ping(tm);
+
+            sleep (1);
+            
+            /* havent heard back in 3 seconds, disco / reco */
+            if ((tm->pings_replied + 3) <= tm->pings_sent) {
+                fformat (stdout, "VPE-f pid %d not responding\n", swt_pid);
+                swt_pid = 0;
+                disconnect_from_vpe();
+                connected = 0;
+            }
+        } else {
+            if (connected) {
+                fformat (stdout, "VPE-f pid %d died\n", swt_pid);
+                swt_pid = 0;
+                disconnect_from_vpe();
+                connected = 0;
+            }
+            sleep (1);
+        }
+    }
+
+    fformat (stdout, "Signal received, graceful exit\n");
+    disconnect_from_vpe();
+    exit (0);
+}