diff options
Diffstat (limited to 'vpp/vlib-api/vlibsocket/sockclnt_vlib.c')
| -rw-r--r-- | vpp/vlib-api/vlibsocket/sockclnt_vlib.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/vpp/vlib-api/vlibsocket/sockclnt_vlib.c b/vpp/vlib-api/vlibsocket/sockclnt_vlib.c new file mode 100644 index 00000000..e16adfeb --- /dev/null +++ b/vpp/vlib-api/vlibsocket/sockclnt_vlib.c @@ -0,0 +1,209 @@ +/* + *------------------------------------------------------------------ + * 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); + close (sockfd); + return ~0; + } + + rv = ioctl (sockfd, FIONBIO, &one); + if (rv < 0) + { + clib_unix_warning ("FIONBIO"); + close (sockfd); + 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); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |