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-rw-r--r--src/vlibmemory/socksvr_vlib.c719
1 files changed, 719 insertions, 0 deletions
diff --git a/src/vlibmemory/socksvr_vlib.c b/src/vlibmemory/socksvr_vlib.c
new file mode 100644
index 00000000000..1a263e7bf37
--- /dev/null
+++ b/src/vlibmemory/socksvr_vlib.c
@@ -0,0 +1,719 @@
+/*
+ *------------------------------------------------------------------
+ * socksvr_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 <netinet/in.h>
+#include <sys/ioctl.h>
+#include <vppinfra/byte_order.h>
+#include <svm/memfd.h>
+
+#include <fcntl.h>
+#include <sys/stat.h>
+
+#include <vlibmemory/api.h>
+
+#include <vlibmemory/vl_memory_msg_enum.h>
+
+#define vl_typedefs /* define message structures */
+#include <vlibmemory/vl_memory_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 <vlibmemory/vl_memory_api_h.h>
+#undef vl_printfun
+
+/* instantiate all the endian swap functions we know about */
+#define vl_endianfun
+#include <vlibmemory/vl_memory_api_h.h>
+#undef vl_endianfun
+
+void
+dump_socket_clients (vlib_main_t * vm, api_main_t * am)
+{
+ vl_api_registration_t *reg;
+ socket_main_t *sm = &socket_main;
+ clib_file_main_t *fm = &file_main;
+ clib_file_t *f;
+
+ /*
+ * Must have at least one active client, not counting the
+ * REGISTRATION_TYPE_SOCKET_LISTEN bind/accept socket
+ */
+ if (pool_elts (sm->registration_pool) < 2)
+ return;
+
+ vlib_cli_output (vm, "Socket clients");
+ vlib_cli_output (vm, "%16s %8s", "Name", "Fildesc");
+ /* *INDENT-OFF* */
+ pool_foreach (reg, sm->registration_pool,
+ ({
+ if (reg->registration_type == REGISTRATION_TYPE_SOCKET_SERVER) {
+ f = pool_elt_at_index (fm->file_pool, reg->clib_file_index);
+ vlib_cli_output (vm, "%16s %8d",
+ reg->name, f->file_descriptor);
+ }
+ }));
+/* *INDENT-ON* */
+}
+
+void
+vl_socket_api_send (vl_api_registration_t * rp, u8 * elem)
+{
+ u16 msg_id = ntohs (*(u16 *) elem);
+ api_main_t *am = &api_main;
+ msgbuf_t *mb = (msgbuf_t *) (elem - offsetof (msgbuf_t, data));
+#if CLIB_DEBUG > 1
+ u32 output_length;
+#endif
+ clib_file_t *cf = rp->clib_file_index + file_main.file_pool;
+
+ ASSERT (rp->registration_type > REGISTRATION_TYPE_SHMEM);
+
+ if (msg_id >= vec_len (am->api_trace_cfg))
+ {
+ clib_warning ("id out of range: %d", msg_id);
+ vl_msg_api_free ((void *) elem);
+ return;
+ }
+
+ /* Add the msgbuf_t to the output vector */
+ vl_socket_add_pending_output_no_flush (cf,
+ rp->vl_api_registration_pool_index +
+ socket_main.registration_pool,
+ (u8 *) mb, sizeof (*mb));
+ /* Send the message */
+ vl_socket_add_pending_output (cf,
+ rp->vl_api_registration_pool_index
+ + socket_main.registration_pool,
+ elem, ntohl (mb->data_len));
+
+#if CLIB_DEBUG > 1
+ output_length = sizeof (*mb) + ntohl (mb->data_len);
+ clib_warning ("wrote %u bytes to fd %d", output_length,
+ cf->file_descriptor);
+#endif
+
+ vl_msg_api_free ((void *) elem);
+}
+
+void
+vl_free_socket_registration_index (u32 pool_index)
+{
+ int i;
+ vl_api_registration_t *rp;
+ if (pool_is_free_index (socket_main.registration_pool, pool_index))
+ {
+ clib_warning ("main pool index %d already free", pool_index);
+ return;
+ }
+ rp = pool_elt_at_index (socket_main.registration_pool, pool_index);
+
+ ASSERT (rp->registration_type != REGISTRATION_TYPE_FREE);
+ for (i = 0; i < vec_len (rp->additional_fds_to_close); i++)
+ if (close (rp->additional_fds_to_close[i]) < 0)
+ clib_unix_warning ("close");
+ vec_free (rp->additional_fds_to_close);
+ vec_free (rp->name);
+ vec_free (rp->unprocessed_input);
+ vec_free (rp->output_vector);
+ rp->registration_type = REGISTRATION_TYPE_FREE;
+ pool_put (socket_main.registration_pool, rp);
+}
+
+void
+vl_api_socket_process_msg (clib_file_t * uf, vl_api_registration_t * rp,
+ i8 * input_v)
+{
+ msgbuf_t *mbp = (msgbuf_t *) input_v;
+
+ u8 *the_msg = (u8 *) (mbp->data);
+ socket_main.current_uf = uf;
+ socket_main.current_rp = rp;
+ vl_msg_api_socket_handler (the_msg);
+ socket_main.current_uf = 0;
+ socket_main.current_rp = 0;
+}
+
+clib_error_t *
+vl_socket_read_ready (clib_file_t * uf)
+{
+ clib_file_main_t *fm = &file_main;
+ vlib_main_t *vm = vlib_get_main ();
+ vl_api_registration_t *rp;
+ int n;
+ i8 *msg_buffer = 0;
+ u8 *data_for_process;
+ u32 msg_len;
+ u32 save_input_buffer_length = vec_len (socket_main.input_buffer);
+ vl_socket_args_for_process_t *a;
+ msgbuf_t *mbp;
+ int mbp_set = 0;
+
+ rp = pool_elt_at_index (socket_main.registration_pool, uf->private_data);
+
+ n = read (uf->file_descriptor, socket_main.input_buffer,
+ vec_len (socket_main.input_buffer));
+
+ if (n <= 0 && errno != EAGAIN)
+ {
+ clib_file_del (fm, uf);
+
+ if (!pool_is_free (socket_main.registration_pool, rp))
+ {
+ u32 index = rp - socket_main.registration_pool;
+ vl_free_socket_registration_index (index);
+ }
+ else
+ {
+ clib_warning ("client index %d already free?",
+ rp->vl_api_registration_pool_index);
+ }
+ return 0;
+ }
+
+ _vec_len (socket_main.input_buffer) = n;
+
+ /*
+ * Look for bugs here. This code is tricky because
+ * data read from a stream socket does not honor message
+ * boundaries. In the case of a long message (>4K bytes)
+ * we have to do (at least) 2 reads, etc.
+ */
+ do
+ {
+ if (vec_len (rp->unprocessed_input))
+ {
+ vec_append (rp->unprocessed_input, socket_main.input_buffer);
+ msg_buffer = rp->unprocessed_input;
+ }
+ else
+ {
+ msg_buffer = socket_main.input_buffer;
+ mbp_set = 0;
+ }
+
+ if (mbp_set == 0)
+ {
+ /* Any chance that we have a complete message? */
+ if (vec_len (msg_buffer) <= sizeof (msgbuf_t))
+ goto save_and_split;
+
+ mbp = (msgbuf_t *) msg_buffer;
+ msg_len = ntohl (mbp->data_len);
+ mbp_set = 1;
+ }
+
+ /* We don't have the entire message yet. */
+ if (mbp_set == 0
+ || (msg_len + sizeof (msgbuf_t)) > vec_len (msg_buffer))
+ {
+ save_and_split:
+ /* if we were using the input buffer save the fragment */
+ if (msg_buffer == socket_main.input_buffer)
+ {
+ ASSERT (vec_len (rp->unprocessed_input) == 0);
+ vec_validate (rp->unprocessed_input, vec_len (msg_buffer) - 1);
+ clib_memcpy (rp->unprocessed_input, msg_buffer,
+ vec_len (msg_buffer));
+ _vec_len (rp->unprocessed_input) = vec_len (msg_buffer);
+ }
+ _vec_len (socket_main.input_buffer) = save_input_buffer_length;
+ return 0;
+ }
+
+ data_for_process = (u8 *) vec_dup (msg_buffer);
+ _vec_len (data_for_process) = (msg_len + sizeof (msgbuf_t));
+ pool_get (socket_main.process_args, a);
+ a->clib_file = uf;
+ a->regp = rp;
+ a->data = data_for_process;
+
+ vlib_process_signal_event (vm, memclnt_node.index,
+ SOCKET_READ_EVENT,
+ a - socket_main.process_args);
+ if (n > (msg_len + sizeof (*mbp)))
+ vec_delete (msg_buffer, msg_len + sizeof (*mbp), 0);
+ else
+ _vec_len (msg_buffer) = 0;
+ n -= msg_len + sizeof (msgbuf_t);
+ msg_len = 0;
+ mbp_set = 0;
+ }
+ while (n > 0);
+
+ _vec_len (socket_main.input_buffer) = save_input_buffer_length;
+
+ return 0;
+}
+
+void
+vl_socket_add_pending_output (clib_file_t * uf,
+ vl_api_registration_t * rp,
+ u8 * buffer, uword buffer_bytes)
+{
+ clib_file_main_t *fm = &file_main;
+
+ vec_add (rp->output_vector, buffer, buffer_bytes);
+ if (vec_len (rp->output_vector) > 0)
+ {
+ int skip_update = 0 != (uf->flags & UNIX_FILE_DATA_AVAILABLE_TO_WRITE);
+ uf->flags |= UNIX_FILE_DATA_AVAILABLE_TO_WRITE;
+ if (!skip_update)
+ fm->file_update (uf, UNIX_FILE_UPDATE_MODIFY);
+ }
+}
+
+void
+vl_socket_add_pending_output_no_flush (clib_file_t * uf,
+ vl_api_registration_t * rp,
+ u8 * buffer, uword buffer_bytes)
+{
+ vec_add (rp->output_vector, buffer, buffer_bytes);
+}
+
+static void
+socket_del_pending_output (clib_file_t * uf,
+ vl_api_registration_t * rp, uword n_bytes)
+{
+ clib_file_main_t *fm = &file_main;
+
+ vec_delete (rp->output_vector, n_bytes, 0);
+ if (vec_len (rp->output_vector) <= 0)
+ {
+ int skip_update = 0 == (uf->flags & UNIX_FILE_DATA_AVAILABLE_TO_WRITE);
+ uf->flags &= ~UNIX_FILE_DATA_AVAILABLE_TO_WRITE;
+ if (!skip_update)
+ fm->file_update (uf, UNIX_FILE_UPDATE_MODIFY);
+ }
+}
+
+clib_error_t *
+vl_socket_write_ready (clib_file_t * uf)
+{
+ clib_file_main_t *fm = &file_main;
+ vl_api_registration_t *rp;
+ int n;
+
+ rp = pool_elt_at_index (socket_main.registration_pool, uf->private_data);
+
+ /* Flush output vector. */
+ n = write (uf->file_descriptor,
+ rp->output_vector, vec_len (rp->output_vector));
+
+ if (n < 0)
+ {
+#if DEBUG > 2
+ clib_warning ("write error, close the file...\n");
+#endif
+ clib_file_del (fm, uf);
+
+ vl_free_socket_registration_index (rp - socket_main.registration_pool);
+ return 0;
+ }
+
+ else if (n > 0)
+ socket_del_pending_output (uf, rp, n);
+
+ return 0;
+}
+
+clib_error_t *
+vl_socket_error_ready (clib_file_t * uf)
+{
+ vl_api_registration_t *rp;
+ clib_file_main_t *fm = &file_main;
+
+ rp = pool_elt_at_index (socket_main.registration_pool, uf->private_data);
+ clib_file_del (fm, uf);
+ vl_free_socket_registration_index (rp - socket_main.registration_pool);
+
+ return 0;
+}
+
+void
+socksvr_file_add (clib_file_main_t * fm, int fd)
+{
+ vl_api_registration_t *rp;
+ clib_file_t template = { 0 };
+
+ pool_get (socket_main.registration_pool, rp);
+ memset (rp, 0, sizeof (*rp));
+
+ template.read_function = vl_socket_read_ready;
+ template.write_function = vl_socket_write_ready;
+ template.error_function = vl_socket_error_ready;
+ template.file_descriptor = fd;
+ template.private_data = rp - socket_main.registration_pool;
+
+ rp->registration_type = REGISTRATION_TYPE_SOCKET_SERVER;
+ rp->vl_api_registration_pool_index = rp - socket_main.registration_pool;
+ rp->clib_file_index = clib_file_add (fm, &template);
+}
+
+static clib_error_t *
+socksvr_accept_ready (clib_file_t * uf)
+{
+ clib_file_main_t *fm = &file_main;
+ socket_main_t *sm = &socket_main;
+ clib_socket_t *sock = &sm->socksvr_listen_socket;
+ clib_socket_t client;
+ clib_error_t *error;
+
+ error = clib_socket_accept (sock, &client);
+
+ if (error)
+ return error;
+
+ socksvr_file_add (fm, client.fd);
+ return 0;
+}
+
+static clib_error_t *
+socksvr_bogus_write (clib_file_t * uf)
+{
+ clib_warning ("why am I here?");
+ return 0;
+}
+
+/*
+ * vl_api_sockclnt_create_t_handler
+ */
+void
+vl_api_sockclnt_create_t_handler (vl_api_sockclnt_create_t * mp)
+{
+ vl_api_registration_t *regp;
+ vl_api_sockclnt_create_reply_t *rp;
+ int rv = 1;
+
+ regp = socket_main.current_rp;
+
+ ASSERT (regp->registration_type == REGISTRATION_TYPE_SOCKET_SERVER);
+
+ regp->name = format (0, "%s%c", mp->name, 0);
+
+ rp = vl_msg_api_alloc (sizeof (*rp));
+ rp->_vl_msg_id = htons (VL_API_SOCKCLNT_CREATE_REPLY);
+ rp->handle = (uword) regp;
+ rp->index = (uword) regp->vl_api_registration_pool_index;
+ rp->context = mp->context;
+ rp->response = htonl (rv);
+
+ vl_msg_api_send (regp, (u8 *) rp);
+}
+
+/*
+ * vl_api_sockclnt_delete_t_handler
+ */
+void
+vl_api_sockclnt_delete_t_handler (vl_api_sockclnt_delete_t * mp)
+{
+ vl_api_registration_t *regp;
+ vl_api_sockclnt_delete_reply_t *rp;
+
+ if (!pool_is_free_index (socket_main.registration_pool, mp->index))
+ {
+ regp = pool_elt_at_index (socket_main.registration_pool, mp->index);
+
+ rp = vl_msg_api_alloc (sizeof (*rp));
+ rp->_vl_msg_id = htons (VL_API_SOCKCLNT_DELETE_REPLY);
+ rp->handle = mp->handle;
+ rp->response = htonl (1);
+
+ vl_msg_api_send (regp, (u8 *) rp);
+
+ clib_file_del (&file_main, file_main.file_pool + regp->clib_file_index);
+
+ vl_free_socket_registration_index (mp->index);
+ }
+ else
+ {
+ clib_warning ("unknown client ID %d", mp->index);
+ }
+}
+
+static clib_error_t *
+send_fd_msg (int socket_fd, int fd_to_share)
+{
+ struct msghdr mh = { 0 };
+ struct iovec iov[1];
+ char ctl[CMSG_SPACE (sizeof (int))];
+ char *msg = "memfd";
+ int rv;
+
+ iov[0].iov_base = msg;
+ iov[0].iov_len = strlen (msg);
+ mh.msg_iov = iov;
+ mh.msg_iovlen = 1;
+
+ struct cmsghdr *cmsg;
+ memset (&ctl, 0, sizeof (ctl));
+ mh.msg_control = ctl;
+ mh.msg_controllen = sizeof (ctl);
+ cmsg = CMSG_FIRSTHDR (&mh);
+ cmsg->cmsg_len = CMSG_LEN (sizeof (int));
+ cmsg->cmsg_level = SOL_SOCKET;
+ cmsg->cmsg_type = SCM_RIGHTS;
+ memcpy (CMSG_DATA (cmsg), &fd_to_share, sizeof (int));
+
+ rv = sendmsg (socket_fd, &mh, 0);
+ if (rv < 0)
+ return clib_error_return_unix (0, "sendmsg");
+ return 0;
+}
+
+/*
+ * Create a memory-fd segment.
+ */
+void
+vl_api_memfd_segment_create_t_handler (vl_api_memfd_segment_create_t * mp)
+{
+ vl_api_memfd_segment_create_reply_t *rmp;
+ api_main_t *am = &api_main;
+ clib_file_t *cf;
+ memfd_private_t _memfd_private, *memfd = &_memfd_private;
+ vl_api_registration_t *regp;
+ vlib_main_t *vm = vlib_get_main ();
+ svm_map_region_args_t _args, *a = &_args;
+ svm_region_t *vlib_rp;
+ int rv;
+
+ regp = vl_api_client_index_to_registration (mp->client_index);
+
+ if (regp == 0)
+ {
+ clib_warning ("API client disconnected");
+ return;
+ }
+
+ if (regp->registration_type != REGISTRATION_TYPE_SOCKET_SERVER)
+ {
+ rv = -31; /* VNET_API_ERROR_INVALID_REGISTRATION */
+ goto reply;
+ }
+
+ memset (memfd, 0, sizeof (*memfd));
+
+ /* Embed in api_main_t */
+ memfd->memfd_size = mp->requested_size;
+ memfd->requested_va = 0ULL;
+ memfd->i_am_master = 1;
+ memfd->name = format (0, "%s%c", regp->name, 0);
+
+ /* Set up a memfd segment of the requested size */
+ rv = memfd_master_init (memfd, mp->client_index);
+
+ if (rv)
+ goto reply;
+
+ /* Remember to close this fd when the socket connection goes away */
+ vec_add1 (regp->additional_fds_to_close, memfd->fd);
+
+ /* And create a plausible svm_region in it */
+ memset (a, 0, sizeof (*a));
+ a->baseva = memfd->sh->memfd_va + MMAP_PAGESIZE;
+ a->size = memfd->memfd_size - MMAP_PAGESIZE;
+ /* $$$$ might want a different config parameter */
+ a->pvt_heap_size = am->api_pvt_heap_size;
+ a->flags = SVM_FLAGS_MHEAP;
+ svm_region_init_mapped_region (a, (svm_region_t *) a->baseva);
+
+ vlib_rp = (svm_region_t *) a->baseva;
+
+ /*
+ * Part deux, initialize the svm_region_t shared-memory header
+ * api allocation rings, and so on.
+ */
+ vl_init_shmem (vlib_rp, 1 /* is_vlib (dont-care) */ , 1 /* is_private */ );
+
+ vec_add1 (am->vlib_private_rps, vlib_rp);
+
+ memfd->sh->ready = 1;
+
+ /* Recompute the set of input queues to poll in memclnt_process */
+ vec_reset_length (vl_api_queue_cursizes);
+
+reply:
+
+ /* send the reply message */
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ rmp->_vl_msg_id = htons (VL_API_MEMFD_SEGMENT_CREATE_REPLY);
+ rmp->context = mp->context;
+ rmp->retval = htonl (rv);
+
+ vl_msg_api_send (regp, (u8 *) rmp);
+
+ if (rv != 0)
+ return;
+
+ /*
+ * We need the reply message to make it out the back door
+ * before we send the magic fd message.
+ */
+ vlib_process_suspend (vm, 11e-6);
+
+ cf = file_main.file_pool + regp->clib_file_index;
+
+ /* send the magic "here's your sign (aka fd)" socket message */
+ send_fd_msg (cf->file_descriptor, memfd->fd);
+}
+
+#define foreach_vlib_api_msg \
+_(SOCKCLNT_CREATE, sockclnt_create) \
+_(SOCKCLNT_DELETE, sockclnt_delete) \
+_(MEMFD_SEGMENT_CREATE, memfd_segment_create)
+
+clib_error_t *
+socksvr_api_init (vlib_main_t * vm)
+{
+ clib_file_main_t *fm = &file_main;
+ clib_file_t template = { 0 };
+ vl_api_registration_t *rp;
+ vl_msg_api_msg_config_t cfg;
+ vl_msg_api_msg_config_t *c = &cfg;
+ socket_main_t *sm = &socket_main;
+ clib_socket_t *sock = &sm->socksvr_listen_socket;
+ clib_error_t *error;
+
+ /* If not explicitly configured, do not bind/enable, etc. */
+ if (sm->socket_name == 0)
+ return 0;
+
+#define _(N,n) do { \
+ c->id = VL_API_##N; \
+ c->name = #n; \
+ c->handler = vl_api_##n##_t_handler; \
+ c->cleanup = vl_noop_handler; \
+ c->endian = vl_api_##n##_t_endian; \
+ c->print = vl_api_##n##_t_print; \
+ c->size = sizeof(vl_api_##n##_t); \
+ c->traced = 1; /* trace, so these msgs print */ \
+ c->replay = 0; /* don't replay client create/delete msgs */ \
+ c->message_bounce = 0; /* don't bounce this message */ \
+ vl_msg_api_config(c);} while (0);
+
+ foreach_vlib_api_msg;
+#undef _
+
+ vec_resize (sm->input_buffer, 4096);
+
+ sock->config = (char *) sm->socket_name;
+
+ /* mkdir of file socket, only under /run */
+ if (strncmp (sock->config, "/run", 4) == 0)
+ {
+ u8 *tmp = format (0, "%s", sock->config);
+ int i = vec_len (tmp);
+ while (i && tmp[--i] != '/')
+ ;
+
+ tmp[i] = 0;
+
+ if (i)
+ vlib_unix_recursive_mkdir ((char *) tmp);
+ vec_free (tmp);
+ }
+
+ sock->flags = CLIB_SOCKET_F_IS_SERVER | CLIB_SOCKET_F_SEQPACKET |
+ CLIB_SOCKET_F_ALLOW_GROUP_WRITE;
+ error = clib_socket_init (sock);
+ if (error)
+ return error;
+
+ pool_get (sm->registration_pool, rp);
+ memset (rp, 0, sizeof (*rp));
+
+ rp->registration_type = REGISTRATION_TYPE_SOCKET_LISTEN;
+
+ template.read_function = socksvr_accept_ready;
+ template.write_function = socksvr_bogus_write;
+ template.file_descriptor = sock->fd;
+ template.private_data = rp - sm->registration_pool;
+
+ rp->clib_file_index = clib_file_add (fm, &template);
+ return 0;
+}
+
+static clib_error_t *
+socket_exit (vlib_main_t * vm)
+{
+ clib_file_main_t *fm = &file_main;
+ socket_main_t *sm = &socket_main;
+ vl_api_registration_t *rp;
+
+ /* Defensive driving in case something wipes out early */
+ if (sm->registration_pool)
+ {
+ u32 index;
+ /* *INDENT-OFF* */
+ pool_foreach (rp, sm->registration_pool, ({
+ clib_file_del (fm, fm->file_pool + rp->clib_file_index);
+ index = rp->vl_api_registration_pool_index;
+ vl_free_socket_registration_index (index);
+ }));
+/* *INDENT-ON* */
+ }
+
+ return 0;
+}
+
+VLIB_MAIN_LOOP_EXIT_FUNCTION (socket_exit);
+
+static clib_error_t *
+socksvr_config (vlib_main_t * vm, unformat_input_t * input)
+{
+ socket_main_t *sm = &socket_main;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "socket-name %s", &sm->socket_name))
+ ;
+ else if (unformat (input, "default"))
+ {
+ sm->socket_name = format (0, "%s%c", API_SOCKET_FILE, 0);
+ }
+ else
+ {
+ return clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, input);
+ }
+ }
+ return 0;
+}
+
+VLIB_CONFIG_FUNCTION (socksvr_config, "socksvr");
+
+clib_error_t *
+vlibsocket_init (vlib_main_t * vm)
+{
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (vlibsocket_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */