2 *------------------------------------------------------------------
5 * Copyright (c) 2009 Cisco and/or its affiliates.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at:
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *------------------------------------------------------------------
20 #include <sys/types.h>
21 #include <sys/socket.h>
22 #include <netinet/in.h>
23 #include <sys/ioctl.h>
27 #include <vppinfra/byte_order.h>
29 #include <vlibmemory/api.h>
31 #include <vlibmemory/vl_memory_msg_enum.h>
33 #define vl_typedefs /* define message structures */
34 #include <vlibmemory/vl_memory_api_h.h>
37 /* instantiate all the print functions we know about */
38 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
40 #include <vlibmemory/vl_memory_api_h.h>
43 /* instantiate all the endian swap functions we know about */
45 #include <vlibmemory/vl_memory_api_h.h>
48 socket_main_t socket_main;
50 #define SOCK_API_REG_HANDLE_BIT (1<<31)
53 sock_api_registration_handle (vl_api_registration_t * regp)
55 ASSERT (regp->vl_api_registration_pool_index < SOCK_API_REG_HANDLE_BIT);
56 return regp->vl_api_registration_pool_index | SOCK_API_REG_HANDLE_BIT;
60 socket_api_registration_handle_to_index (u32 reg_index)
62 return (reg_index & ~SOCK_API_REG_HANDLE_BIT);
66 vl_socket_api_registration_handle_is_valid (u32 reg_handle)
68 return ((reg_handle & SOCK_API_REG_HANDLE_BIT) != 0);
72 vl_sock_api_dump_clients (vlib_main_t * vm, api_main_t * am)
74 vl_api_registration_t *reg;
75 socket_main_t *sm = &socket_main;
79 * Must have at least one active client, not counting the
80 * REGISTRATION_TYPE_SOCKET_LISTEN bind/accept socket
82 if (pool_elts (sm->registration_pool) < 2)
85 vlib_cli_output (vm, "Socket clients");
86 vlib_cli_output (vm, "%20s %8s", "Name", "Fildesc");
88 pool_foreach (reg, sm->registration_pool)
90 if (reg->registration_type == REGISTRATION_TYPE_SOCKET_SERVER) {
91 f = vl_api_registration_file (reg);
92 vlib_cli_output (vm, "%20s %8d", reg->name, f->file_descriptor);
98 vl_api_registration_t *
99 vl_socket_api_client_handle_to_registration (u32 handle)
101 socket_main_t *sm = &socket_main;
102 u32 index = socket_api_registration_handle_to_index (handle);
103 if (pool_is_free_index (sm->registration_pool, index))
106 clib_warning ("Invalid index %d\n", index);
110 return pool_elt_at_index (sm->registration_pool, index);
114 vl_socket_api_send (vl_api_registration_t * rp, u8 * elem)
119 socket_main_t *sm = &socket_main;
120 u16 msg_id = ntohs (*(u16 *) elem);
121 api_main_t *am = vlibapi_get_main ();
122 msgbuf_t *mb = (msgbuf_t *) (elem - offsetof (msgbuf_t, data));
123 vl_api_registration_t *sock_rp;
124 clib_file_main_t *fm = &file_main;
128 cf = vl_api_registration_file (rp);
129 ASSERT (rp->registration_type > REGISTRATION_TYPE_SHMEM);
131 if (msg_id >= vec_len (am->api_trace_cfg))
133 clib_warning ("id out of range: %d", msg_id);
134 vl_msg_api_free ((void *) elem);
138 sock_rp = pool_elt_at_index (sm->registration_pool,
139 rp->vl_api_registration_pool_index);
142 /* Add the msgbuf_t to the output vector */
143 vec_add (sock_rp->output_vector, (u8 *) mb, sizeof (*mb));
145 /* Try to send the message and save any error like
146 * we do in the input epoll loop */
147 vec_add (sock_rp->output_vector, elem, ntohl (mb->data_len));
148 error = clib_file_write (cf);
149 unix_save_error (&unix_main, error);
151 /* Make sure cf not removed in clib_file_write */
152 cf = vl_api_registration_file (rp);
155 clib_warning ("cf removed");
156 vl_msg_api_free ((void *) elem);
160 /* If we didn't finish sending everything, wait for tx space */
161 if (vec_len (sock_rp->output_vector) > 0
162 && !(cf->flags & UNIX_FILE_DATA_AVAILABLE_TO_WRITE))
164 cf->flags |= UNIX_FILE_DATA_AVAILABLE_TO_WRITE;
165 fm->file_update (cf, UNIX_FILE_UPDATE_MODIFY);
169 output_length = sizeof (*mb) + ntohl (mb->data_len);
170 clib_warning ("wrote %u bytes to fd %d", output_length,
171 cf->file_descriptor);
174 vl_msg_api_free ((void *) elem);
178 vl_socket_free_registration_index (u32 pool_index)
181 vl_api_registration_t *rp;
182 void vl_api_call_reaper_functions (u32 client_index);
184 if (pool_is_free_index (socket_main.registration_pool, pool_index))
186 clib_warning ("main pool index %d already free", pool_index);
189 rp = pool_elt_at_index (socket_main.registration_pool, pool_index);
191 vl_api_call_reaper_functions (pool_index);
193 ASSERT (rp->registration_type != REGISTRATION_TYPE_FREE);
194 for (i = 0; i < vec_len (rp->additional_fds_to_close); i++)
195 if (close (rp->additional_fds_to_close[i]) < 0)
196 clib_unix_warning ("close");
197 vec_free (rp->additional_fds_to_close);
199 vec_free (rp->unprocessed_input);
200 vec_free (rp->output_vector);
201 rp->registration_type = REGISTRATION_TYPE_FREE;
202 pool_put (socket_main.registration_pool, rp);
206 vl_socket_process_api_msg (vl_api_registration_t * rp, i8 * input_v)
208 msgbuf_t *mbp = (msgbuf_t *) input_v;
210 u8 *the_msg = (u8 *) (mbp->data);
211 socket_main.current_rp = rp;
212 vl_msg_api_socket_handler (the_msg);
213 socket_main.current_rp = 0;
217 * Read function for API socket.
219 * Read data from socket, invoke SOCKET_READ_EVENT
220 * for each fully read API message, return 0.
221 * Store incomplete data for next invocation to continue.
223 * On severe read error, the file is closed.
225 * As reading is single threaded,
226 * socket_main.input_buffer is used temporarily.
227 * Even its length is modified, but always restored before return.
229 * Incomplete data is copied into a vector,
230 * pointer saved in registration's unprocessed_input.
233 vl_socket_read_ready (clib_file_t * uf)
235 clib_file_main_t *fm = &file_main;
236 vlib_main_t *vm = vlib_get_main ();
237 vl_api_registration_t *rp;
238 /* n is the size of data read to input_buffer */
240 /* msg_buffer vector can point to input_buffer or unprocessed_input */
242 /* data_for_process is a vector containing one full message, incl msgbuf_t */
243 u8 *data_for_process;
244 /* msgbuf_len is the size of one message, including sizeof (msgbuf_t) */
246 u32 save_input_buffer_length = vec_len (socket_main.input_buffer);
247 vl_socket_args_for_process_t *a;
248 u32 reg_index = uf->private_data;
250 rp = vl_socket_get_registration (reg_index);
252 /* Ignore unprocessed_input for now, n describes input_buffer for now. */
253 n = read (uf->file_descriptor, socket_main.input_buffer,
254 vec_len (socket_main.input_buffer));
260 /* Severe error, close the file. */
261 clib_file_del (fm, uf);
262 vl_socket_free_registration_index (reg_index);
264 /* EAGAIN means we do not close the file, but no data to process anyway. */
268 /* Fake smaller length teporarily, so input_buffer can be used as msg_buffer. */
269 _vec_len (socket_main.input_buffer) = n;
272 * Look for bugs here. This code is tricky because
273 * data read from a stream socket does not honor message
274 * boundaries. In the case of a long message (>4K bytes)
275 * we have to do (at least) 2 reads, etc.
277 /* Determine msg_buffer. */
278 if (vec_len (rp->unprocessed_input))
280 vec_append (rp->unprocessed_input, socket_main.input_buffer);
281 msg_buffer = rp->unprocessed_input;
285 msg_buffer = socket_main.input_buffer;
287 /* Loop to process any full messages. */
288 ASSERT (vec_len (msg_buffer) > 0);
291 /* Here, we are not sure how big a chunk of message we have left. */
292 /* Do we at least know how big the full message will be? */
293 if (vec_len (msg_buffer) <= sizeof (msgbuf_t))
294 /* No, so fragment is not a full message. */
297 /* Now we know how big the full message will be. */
299 ntohl (((msgbuf_t *) msg_buffer)->data_len) + sizeof (msgbuf_t);
301 /* But do we have a full message? */
302 if (msgbuf_len > vec_len (msg_buffer))
305 /* We don't have the entire message yet. */
306 /* If msg_buffer is unprocessed_input, nothing needs to be done. */
307 if (msg_buffer == socket_main.input_buffer)
308 /* But if we were using the input buffer, save the fragment. */
310 ASSERT (vec_len (rp->unprocessed_input) == 0);
311 vec_validate (rp->unprocessed_input, vec_len (msg_buffer) - 1);
312 clib_memcpy_fast (rp->unprocessed_input, msg_buffer,
313 vec_len (msg_buffer));
314 _vec_len (rp->unprocessed_input) = vec_len (msg_buffer);
316 /* No more full messages, restore original input_buffer length. */
317 _vec_len (socket_main.input_buffer) = save_input_buffer_length;
322 * We have at least one full message.
323 * But msg_buffer can contain more data, so copy one message data
324 * so we can overwrite its length to what single message has.
326 data_for_process = (u8 *) vec_dup (msg_buffer);
327 _vec_len (data_for_process) = msgbuf_len;
328 /* Everything is ready to signal the SOCKET_READ_EVENT. */
329 pool_get (socket_main.process_args, a);
330 a->reg_index = reg_index;
331 a->data = data_for_process;
333 vlib_process_signal_event (vm, vl_api_clnt_node.index,
335 a - socket_main.process_args);
336 if (vec_len (msg_buffer) > msgbuf_len)
337 /* There are some fragments left. Shrink the msg_buffer to simplify logic. */
338 vec_delete (msg_buffer, msgbuf_len, 0);
340 /* We are done with msg_buffer. */
341 _vec_len (msg_buffer) = 0;
343 while (vec_len (msg_buffer) > 0);
345 /* Restore input_buffer, it could have been msg_buffer. */
346 _vec_len (socket_main.input_buffer) = save_input_buffer_length;
351 vl_socket_write_ready (clib_file_t * uf)
353 clib_file_main_t *fm = &file_main;
354 vl_api_registration_t *rp;
357 rp = pool_elt_at_index (socket_main.registration_pool, uf->private_data);
359 /* Flush output vector. */
360 size_t total_bytes = vec_len (rp->output_vector);
361 size_t bytes_to_send, remaining_bytes = total_bytes;
362 void *p = rp->output_vector;
363 while (remaining_bytes > 0)
365 bytes_to_send = remaining_bytes > 4096 ? 4096 : remaining_bytes;
366 n = write (uf->file_descriptor, p, bytes_to_send);
374 clib_warning ("write error, close the file...\n");
376 clib_file_del (fm, uf);
377 vl_socket_free_registration_index (rp -
378 socket_main.registration_pool);
381 remaining_bytes -= bytes_to_send;
385 vec_delete (rp->output_vector, total_bytes - remaining_bytes, 0);
386 if (vec_len (rp->output_vector) <= 0
387 && (uf->flags & UNIX_FILE_DATA_AVAILABLE_TO_WRITE))
389 uf->flags &= ~UNIX_FILE_DATA_AVAILABLE_TO_WRITE;
390 fm->file_update (uf, UNIX_FILE_UPDATE_MODIFY);
397 vl_socket_error_ready (clib_file_t * uf)
399 vl_api_registration_t *rp;
400 clib_file_main_t *fm = &file_main;
402 rp = pool_elt_at_index (socket_main.registration_pool, uf->private_data);
403 clib_file_del (fm, uf);
404 vl_socket_free_registration_index (rp - socket_main.registration_pool);
410 socksvr_file_add (clib_file_main_t * fm, int fd)
412 vl_api_registration_t *rp;
413 clib_file_t template = { 0 };
415 pool_get (socket_main.registration_pool, rp);
416 clib_memset (rp, 0, sizeof (*rp));
418 template.read_function = vl_socket_read_ready;
419 template.write_function = vl_socket_write_ready;
420 template.error_function = vl_socket_error_ready;
421 template.file_descriptor = fd;
422 template.description = format (0, "socksrv");
423 template.private_data = rp - socket_main.registration_pool;
425 rp->registration_type = REGISTRATION_TYPE_SOCKET_SERVER;
426 rp->vl_api_registration_pool_index = rp - socket_main.registration_pool;
427 rp->clib_file_index = clib_file_add (fm, &template);
430 static clib_error_t *
431 socksvr_accept_ready (clib_file_t * uf)
433 clib_file_main_t *fm = &file_main;
434 socket_main_t *sm = &socket_main;
435 clib_socket_t *sock = &sm->socksvr_listen_socket;
436 clib_socket_t client;
439 error = clib_socket_accept (sock, &client);
443 socksvr_file_add (fm, client.fd);
447 static clib_error_t *
448 socksvr_bogus_write (clib_file_t * uf)
450 clib_warning ("why am I here?");
455 * vl_api_sockclnt_create_t_handler
458 vl_api_sockclnt_create_t_handler (vl_api_sockclnt_create_t * mp)
460 vl_api_registration_t *regp;
461 vl_api_sockclnt_create_reply_t *rp;
462 api_main_t *am = vlibapi_get_main ();
465 u32 nmsg = hash_elts (am->msg_index_by_name_and_crc);
468 regp = socket_main.current_rp;
470 ASSERT (regp->registration_type == REGISTRATION_TYPE_SOCKET_SERVER);
472 regp->name = format (0, "%s%c", mp->name, 0);
474 u32 size = sizeof (*rp) + (nmsg * sizeof (vl_api_message_table_entry_t));
475 rp = vl_msg_api_alloc_zero (size);
476 rp->_vl_msg_id = htons (VL_API_SOCKCLNT_CREATE_REPLY);
477 rp->index = htonl (sock_api_registration_handle (regp));
478 rp->context = mp->context;
479 rp->response = htonl (rv);
480 rp->count = htons (nmsg);
483 hash_foreach_pair (hp, am->msg_index_by_name_and_crc,
485 rp->message_table[i].index = htons(hp->value[0]);
486 (void) strncpy_s((char *)rp->message_table[i].name,
487 64 /* bytes of space at dst */,
489 64-1 /* chars to copy, without zero byte. */);
493 vl_api_send_msg (regp, (u8 *) rp);
497 * vl_api_sockclnt_delete_t_handler
500 vl_api_sockclnt_delete_t_handler (vl_api_sockclnt_delete_t * mp)
502 vl_api_registration_t *regp;
503 vl_api_sockclnt_delete_reply_t *rp;
505 regp = vl_api_client_index_to_registration (mp->client_index);
509 u32 reg_index = socket_api_registration_handle_to_index (ntohl (mp->index));
510 rp = vl_msg_api_alloc (sizeof (*rp));
511 rp->_vl_msg_id = htons (VL_API_SOCKCLNT_DELETE_REPLY);
512 rp->context = mp->context;
514 if (!pool_is_free_index (socket_main.registration_pool, reg_index))
516 rp->response = htonl (1);
517 vl_api_send_msg (regp, (u8 *) rp);
519 vl_api_registration_del_file (regp);
520 vl_socket_free_registration_index (reg_index);
524 clib_warning ("unknown client ID %d", reg_index);
525 rp->response = htonl (-1);
526 vl_api_send_msg (regp, (u8 *) rp);
531 vl_sock_api_send_fd_msg (int socket_fd, int fds[], int n_fds)
533 struct msghdr mh = { 0 };
535 char ctl[CMSG_SPACE (sizeof (int) * n_fds)];
536 struct cmsghdr *cmsg;
540 iov[0].iov_base = msg;
541 iov[0].iov_len = strlen (msg);
545 clib_memset (&ctl, 0, sizeof (ctl));
546 mh.msg_control = ctl;
547 mh.msg_controllen = sizeof (ctl);
548 cmsg = CMSG_FIRSTHDR (&mh);
549 cmsg->cmsg_len = CMSG_LEN (sizeof (int) * n_fds);
550 cmsg->cmsg_level = SOL_SOCKET;
551 cmsg->cmsg_type = SCM_RIGHTS;
552 clib_memcpy_fast (CMSG_DATA (cmsg), fds, sizeof (int) * n_fds);
554 while ((rv = sendmsg (socket_fd, &mh, 0)) < 0 && errno == EAGAIN)
557 return clib_error_return_unix (0, "sendmsg");
561 vl_api_shm_elem_config_t *
562 vl_api_make_shm_config (vl_api_sock_init_shm_t * mp)
564 vl_api_shm_elem_config_t *config = 0, *c;
570 vec_validate (config, 6);
571 config[0].type = VL_API_VLIB_RING;
572 config[0].size = 256;
573 config[0].count = 32;
575 config[1].type = VL_API_VLIB_RING;
576 config[1].size = 1024;
577 config[1].count = 16;
579 config[2].type = VL_API_VLIB_RING;
580 config[2].size = 4096;
583 config[3].type = VL_API_CLIENT_RING;
584 config[3].size = 256;
585 config[3].count = 32;
587 config[4].type = VL_API_CLIENT_RING;
588 config[4].size = 1024;
589 config[4].count = 16;
591 config[5].type = VL_API_CLIENT_RING;
592 config[5].size = 4096;
595 config[6].type = VL_API_QUEUE;
596 config[6].count = 128;
597 config[6].size = sizeof (uword);
601 vec_validate (config, mp->nitems - 1);
602 for (i = 0; i < mp->nitems; i++)
604 cfg = mp->configs[i];
605 /* Pretty much a hack but it avoids defining our own api type
607 c = (vl_api_shm_elem_config_t *) & cfg;
608 config[i].type = c->type;
609 config[i].count = c->count;
610 config[i].size = c->size;
617 * Bootstrap shm api using the socket api
620 vl_api_sock_init_shm_t_handler (vl_api_sock_init_shm_t * mp)
622 vl_api_sock_init_shm_reply_t *rmp;
623 ssvm_private_t _memfd_private, *memfd = &_memfd_private;
624 svm_map_region_args_t _args, *a = &_args;
625 vl_api_registration_t *regp;
626 api_main_t *am = vlibapi_get_main ();
627 svm_region_t *vlib_rp;
629 vl_api_shm_elem_config_t *config = 0;
630 vl_shmem_hdr_t *shmem_hdr;
631 int rv, tries = 1000;
633 regp = vl_api_client_index_to_registration (mp->client_index);
636 clib_warning ("API client disconnected");
639 if (regp->registration_type != REGISTRATION_TYPE_SOCKET_SERVER)
641 clib_warning ("Invalid registration");
646 * Set up a memfd segment of the requested size wherein the
647 * shmem data structures will be initialized
649 clib_memset (memfd, 0, sizeof (*memfd));
650 memfd->ssvm_size = mp->requested_size;
651 memfd->requested_va = 0ULL;
652 memfd->is_server = 1;
653 memfd->name = format (0, "%s%c", regp->name, 0);
655 if ((rv = ssvm_server_init_memfd (memfd)))
658 /* delete the unused heap created in ssvm_server_init_memfd and mark it
659 * accessible again for ASAN */
660 clib_mem_destroy_heap (memfd->sh->heap);
661 CLIB_MEM_UNPOISON ((void *) memfd->sh->ssvm_va, memfd->ssvm_size);
663 /* Remember to close this fd when the socket connection goes away */
664 vec_add1 (regp->additional_fds_to_close, memfd->fd);
667 * Create a plausible svm_region in the memfd backed segment
669 clib_memset (a, 0, sizeof (*a));
670 a->baseva = memfd->sh->ssvm_va + MMAP_PAGESIZE;
671 a->size = memfd->ssvm_size - MMAP_PAGESIZE;
672 /* $$$$ might want a different config parameter */
673 a->pvt_heap_size = am->api_pvt_heap_size;
674 a->flags = SVM_FLAGS_MHEAP;
675 svm_region_init_mapped_region (a, (svm_region_t *) a->baseva);
678 * Part deux, initialize the svm_region_t shared-memory header
679 * api allocation rings, and so on.
681 config = vl_api_make_shm_config (mp);
682 vlib_rp = (svm_region_t *) a->baseva;
683 vl_init_shmem (vlib_rp, config, 1 /* is_vlib (dont-care) */ ,
684 1 /* is_private */ );
686 /* Remember who created this. Needs to be post vl_init_shmem */
687 shmem_hdr = (vl_shmem_hdr_t *) vlib_rp->user_ctx;
688 shmem_hdr->clib_file_index = vl_api_registration_file_index (regp);
690 vec_add1 (am->vlib_private_rps, vlib_rp);
691 memfd->sh->ready = 1;
694 /* Recompute the set of input queues to poll in memclnt_process */
695 vec_reset_length (vl_api_queue_cursizes);
699 rmp = vl_msg_api_alloc (sizeof (*rmp));
700 rmp->_vl_msg_id = htons (VL_API_SOCK_INIT_SHM_REPLY);
701 rmp->context = mp->context;
702 rmp->retval = htonl (rv);
705 * Note: The reply message needs to make it out the back door
706 * before we send the magic fd message. That's taken care of by
709 vl_socket_api_send (regp, (u8 *) rmp);
714 /* Send the magic "here's your sign (aka fd)" socket message */
715 cf = vl_api_registration_file (regp);
718 clib_warning ("cf removed");
722 /* Wait for reply to be consumed before sending the fd */
726 rv = ioctl (cf->file_descriptor, TIOCOUTQ, &bytes);
729 clib_unix_warning ("ioctl returned");
737 vl_sock_api_send_fd_msg (cf->file_descriptor, &memfd->fd, 1);
740 #define foreach_vlib_api_msg \
741 _(SOCKCLNT_CREATE, sockclnt_create, 1) \
742 _(SOCKCLNT_DELETE, sockclnt_delete, 1) \
743 _(SOCK_INIT_SHM, sock_init_shm, 1)
746 vl_sock_api_init (vlib_main_t * vm)
748 clib_file_main_t *fm = &file_main;
749 clib_file_t template = { 0 };
750 vl_api_registration_t *rp;
751 socket_main_t *sm = &socket_main;
752 clib_socket_t *sock = &sm->socksvr_listen_socket;
755 /* If not explicitly configured, do not bind/enable, etc. */
756 if (sm->socket_name == 0)
760 vl_msg_api_set_handlers(VL_API_##N, #n, \
761 vl_api_##n##_t_handler, \
763 vl_api_##n##_t_endian, \
764 vl_api_##n##_t_print, \
765 sizeof(vl_api_##n##_t), t);
766 foreach_vlib_api_msg;
769 vec_resize (sm->input_buffer, 4096);
771 sock->config = (char *) sm->socket_name;
772 sock->flags = CLIB_SOCKET_F_IS_SERVER | CLIB_SOCKET_F_ALLOW_GROUP_WRITE;
773 error = clib_socket_init (sock);
777 pool_get (sm->registration_pool, rp);
778 clib_memset (rp, 0, sizeof (*rp));
780 rp->registration_type = REGISTRATION_TYPE_SOCKET_LISTEN;
782 template.read_function = socksvr_accept_ready;
783 template.write_function = socksvr_bogus_write;
784 template.file_descriptor = sock->fd;
785 template.description = format (0, "socksvr %s", sock->config);
786 template.private_data = rp - sm->registration_pool;
788 rp->clib_file_index = clib_file_add (fm, &template);
792 static clib_error_t *
793 socket_exit (vlib_main_t * vm)
795 socket_main_t *sm = &socket_main;
796 vl_api_registration_t *rp;
798 /* Defensive driving in case something wipes out early */
799 if (sm->registration_pool)
803 pool_foreach (rp, sm->registration_pool) {
804 vl_api_registration_del_file (rp);
805 index = rp->vl_api_registration_pool_index;
806 vl_socket_free_registration_index (index);
814 VLIB_MAIN_LOOP_EXIT_FUNCTION (socket_exit);
816 static clib_error_t *
817 socksvr_config (vlib_main_t * vm, unformat_input_t * input)
819 socket_main_t *sm = &socket_main;
821 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
823 if (unformat (input, "socket-name %s", &sm->socket_name))
825 /* DEPRECATE: default keyword is ignored */
826 else if (unformat (input, "default"))
830 return clib_error_return (0, "unknown input '%U'",
831 format_unformat_error, input);
835 if (!vec_len (sm->socket_name))
836 sm->socket_name = format (0, "%s/%s", vlib_unix_get_runtime_dir (),
837 API_SOCKET_FILENAME);
838 vec_terminate_c_string (sm->socket_name);
843 VLIB_CONFIG_FUNCTION (socksvr_config, "socksvr");
846 vlibsocket_reference ()
851 * fd.io coding-style-patch-verification: ON
854 * eval: (c-set-style "gnu")