Initial commit of vpp code.

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

1 files changed, 192 insertions, 0 deletions

diff --git a/vlib-api/vlibsocket/sockclnt_vlib.c b/vlib-api/vlibsocket/sockclnt_vlib.c
new file mode 100644
index 00000000..8ea4f308
--- /dev/null
+++ b/vlib-api/vlibsocket/sockclnt_vlib.c
@@ -0,0 +1,192 @@
+/* 
+ *------------------------------------------------------------------
+ * sockclnt_vlib.c
+ *
+ * Copyright (c) 2009 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 <sys/types.h> 
+#include <sys/socket.h>
+#include <unistd.h>
+#include <netinet/in.h>
+#include <sys/ioctl.h>
+#include <vppinfra/byte_order.h>
+#include <netdb.h>
+
+#include <fcntl.h>
+#include <sys/stat.h>
+
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+
+#include <vlibsocket/vl_socket_msg_enum.h>
+
+#define vl_typedefs             /* define message structures */
+#include <vlibsocket/vl_socket_api_h.h>
+#undef vl_typedefs
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <vlibsocket/vl_socket_api_h.h>
+#undef vl_printfun
+
+/* instantiate all the endian swap functions we know about */
+#define vl_endianfun
+#include <vlibsocket/vl_socket_api_h.h>
+#undef vl_endianfun
+
+static void vl_api_sockclnt_create_reply_t_handler (
+    vl_api_sockclnt_create_reply_t *mp)
+{
+    vl_api_registration_t *rp = socket_main.current_rp;
+
+    rp->server_handle = mp->handle;
+    rp->server_index = mp->index;
+}        
+
+static void vl_api_sockclnt_delete_reply_t_handler (
+    vl_api_sockclnt_delete_reply_t *mp)
+{
+    unix_main_t *um = &unix_main;
+    unix_file_t *uf = socket_main.current_uf;
+    vl_api_registration_t *rp = socket_main.current_rp;
+
+    unix_file_del (um, uf);
+    vl_free_socket_registration_index (rp->vl_api_registration_pool_index);
+}        
+
+u32 sockclnt_open_index (char *client_name, char *hostname, int port)
+{
+    vl_api_registration_t * rp;
+    unix_main_t * um = &unix_main;
+    unix_file_t template = {0};
+    int sockfd;
+    int one = 1;
+    int rv;
+    struct sockaddr_in serv_addr;
+    struct hostent *server;
+    vl_api_sockclnt_create_t *mp;
+    char my_hostname[64];
+
+    server = gethostbyname(hostname);
+    if (server == NULL) {
+        clib_warning("Couldn't translate server name %s", hostname);
+        return ~0;
+    }
+
+    /* Set up non-blocking server socket on CLIENT_API_SERVER_PORT */
+    sockfd = socket(AF_INET, SOCK_STREAM, 0);
+
+    if (sockfd < 0) {
+        clib_unix_warning ("socket");
+        return ~0;
+    }
+
+    bzero((char *) &serv_addr, sizeof(serv_addr));
+    serv_addr.sin_family = AF_INET;
+    bcopy((char *)server->h_addr, 
+          (char *)&serv_addr.sin_addr.s_addr,
+          server->h_length);
+    serv_addr.sin_port = htons(port);
+    
+    if (connect(sockfd,(const void *)&serv_addr,sizeof(serv_addr)) < 0) {
+        clib_unix_warning("Connect failure to (%s, %d)", 
+                          hostname, port);
+        return ~0;
+    }
+
+    rv = ioctl (sockfd, FIONBIO, &one);
+    if (rv < 0) {
+        clib_unix_warning ("FIONBIO");
+        return ~0;
+    }
+
+    pool_get (socket_main.registration_pool, rp);
+    memset(rp, 0, sizeof(*rp));
+    rp->registration_type = REGISTRATION_TYPE_SOCKET_CLIENT;
+    rp->vl_api_registration_pool_index = rp - socket_main.registration_pool;
+
+    template.read_function = vl_socket_read_ready;
+    template.write_function = vl_socket_write_ready;
+    template.file_descriptor = sockfd;
+    template.private_data = rp - socket_main.registration_pool;
+    
+    rp->unix_file_index = unix_file_add (um, &template);
+    rp->name = format(0, "%s:%d", hostname, port);
+
+    mp = vl_msg_api_alloc (sizeof (*mp));
+    mp->_vl_msg_id = ntohs(VL_API_SOCKCLNT_CREATE);
+    mp->context = rp - socket_main.registration_pool;
+
+    if (gethostname(my_hostname, sizeof (my_hostname)) < 0) {
+        clib_unix_warning("gethostname");
+        strncpy (my_hostname, "unknown!", sizeof(my_hostname)-1);
+    }
+    strncpy ((char *)mp->name, my_hostname, sizeof (mp->name)-1);
+
+    vl_msg_api_send (rp, (u8 *)mp);
+    return rp - socket_main.registration_pool;
+}
+
+void sockclnt_close_index (u32 index)
+{
+    vl_api_sockclnt_delete_t *mp;
+    vl_api_registration_t *rp;
+
+    /* Don't crash / assert if fed garbage */
+    if (pool_is_free_index (socket_main.registration_pool, index)) {
+        clib_warning ("registration_pool index %d already free", index);
+        return;
+    }
+    rp = pool_elt_at_index(socket_main.registration_pool, index);
+
+    mp = vl_msg_api_alloc (sizeof (*mp));
+    mp->_vl_msg_id = ntohs(VL_API_SOCKCLNT_DELETE);
+    mp->handle = rp->server_handle;
+    mp->index = rp->server_index;
+    vl_msg_api_send (rp, (u8 *)mp);
+}
+
+vl_api_registration_t *sockclnt_get_registration (u32 index)
+{
+    return pool_elt_at_index (socket_main.registration_pool, index);
+}
+
+/*
+ * Both rx and tx msgs MUST be initialized, or we'll have
+ * precisely no idea how many bytes to write into the API trace... 
+ */
+#define foreach_sockclnt_api_msg                        \
+_(SOCKCLNT_CREATE_REPLY, sockclnt_create_reply)         \
+_(SOCKCLNT_DELETE_REPLY, sockclnt_delete_reply)   
+
+
+static clib_error_t *
+sockclnt_vlib_api_init (vlib_main_t *vm)
+{
+#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_sockclnt_api_msg;
+#undef _
+    return 0;
+}    
+
+VLIB_API_INIT_FUNCTION(sockclnt_vlib_api_init);