FD.io VPP  v20.09-64-g4f7b92f0a
Vector Packet Processing
main.c
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1 /*
2  * Copyright (c) 2015 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 /*
16  * main.c: Unix main routine
17  *
18  * Copyright (c) 2008 Eliot Dresselhaus
19  *
20  * Permission is hereby granted, free of charge, to any person obtaining
21  * a copy of this software and associated documentation files (the
22  * "Software"), to deal in the Software without restriction, including
23  * without limitation the rights to use, copy, modify, merge, publish,
24  * distribute, sublicense, and/or sell copies of the Software, and to
25  * permit persons to whom the Software is furnished to do so, subject to
26  * the following conditions:
27  *
28  * The above copyright notice and this permission notice shall be
29  * included in all copies or substantial portions of the Software.
30  *
31  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38  */
39 #include <vlib/vlib.h>
40 #include <vlib/unix/unix.h>
41 #include <vlib/unix/plugin.h>
42 
43 #include <signal.h>
44 #include <sys/ucontext.h>
45 #include <syslog.h>
46 #include <sys/types.h>
47 #include <sys/stat.h>
48 #include <fcntl.h>
49 #include <sys/time.h>
50 #include <sys/resource.h>
51 #include <unistd.h>
52 
53 /** Default CLI pager limit is not configured in startup.conf */
54 #define UNIX_CLI_DEFAULT_PAGER_LIMIT 100000
55 
56 /** Default CLI history depth if not configured in startup.conf */
57 #define UNIX_CLI_DEFAULT_HISTORY 50
58 
59 char *vlib_default_runtime_dir __attribute__ ((weak));
60 char *vlib_default_runtime_dir = "vlib";
61 
64 
65 static clib_error_t *
67 {
68  unix_main_t *um = &unix_main;
69  um->vlib_main = vm;
70  return 0;
71 }
72 
73 /* *INDENT-OFF* */
75 {
76  .runs_before = VLIB_INITS ("unix_input_init"),
77 };
78 /* *INDENT-ON* */
79 
80 static int
82 {
83  struct sigaction sa;
84 
85  sa.sa_handler = SIG_DFL;
86  sa.sa_flags = 0;
87  sigemptyset (&sa.sa_mask);
88  return sigaction (sig, &sa, 0);
89 }
90 
91 
92 /* allocate this buffer from mheap when setting up the signal handler.
93  dangerous to vec_resize it when crashing, mheap itself might have been
94  corrupted already */
95 static u8 *syslog_msg = 0;
96 static int last_signum = 0;
97 static uword last_faulting_address = 0;
98 
99 static void
100 unix_signal_handler (int signum, siginfo_t * si, ucontext_t * uc)
101 {
102  uword fatal = 0;
103 
104  /* These come in handy when looking at core files from optimized images */
105  last_signum = signum;
106  last_faulting_address = (uword) si->si_addr;
107 
108  syslog_msg = format (syslog_msg, "received signal %U, PC %U",
109  format_signal, signum, format_ucontext_pc, uc);
110 
111  if (signum == SIGSEGV)
112  syslog_msg = format (syslog_msg, ", faulting address %p", si->si_addr);
113 
114  switch (signum)
115  {
116  /* these (caught) signals cause the application to exit */
117  case SIGTERM:
118  /*
119  * Ignore SIGTERM if it's sent before we're ready.
120  */
121  if (unix_main.vlib_main && unix_main.vlib_main->main_loop_exit_set)
122  {
123  syslog (LOG_ERR | LOG_DAEMON, "received SIGTERM, exiting...");
124  unix_main.vlib_main->main_loop_exit_now = 1;
125  }
126  else
127  syslog (LOG_ERR | LOG_DAEMON, "IGNORE early SIGTERM...");
128  break;
129  /* fall through */
130  case SIGQUIT:
131  case SIGINT:
132  case SIGILL:
133  case SIGBUS:
134  case SIGSEGV:
135  case SIGHUP:
136  case SIGFPE:
137  case SIGABRT:
138  fatal = 1;
139  break;
140 
141  /* by default, print a message and continue */
142  default:
143  fatal = 0;
144  break;
145  }
146 
147 #ifdef CLIB_GCOV
148  /*
149  * Test framework sends SIGTERM, so we need to flush the
150  * code coverage stats here.
151  */
152  {
153  void __gcov_flush (void);
154  __gcov_flush ();
155  }
156 #endif
157 
158  /* Null terminate. */
159  vec_add1 (syslog_msg, 0);
160 
161  if (fatal)
162  {
163  syslog (LOG_ERR | LOG_DAEMON, "%s", syslog_msg);
164 
165  /* Address of callers: outer first, inner last. */
166  uword callers[15];
167  uword n_callers = clib_backtrace (callers, ARRAY_LEN (callers), 0);
168  int i;
169  for (i = 0; i < n_callers; i++)
170  {
171  vec_reset_length (syslog_msg);
172 
173  syslog_msg =
174  format (syslog_msg, "#%-2d 0x%016lx %U%c", i, callers[i],
175  format_clib_elf_symbol_with_address, callers[i], 0);
176 
177  syslog (LOG_ERR | LOG_DAEMON, "%s", syslog_msg);
178  }
179 
180  /* have to remove SIGABRT to avoid recursive - os_exit calling abort() */
181  unsetup_signal_handlers (SIGABRT);
182 
183  /* os_exit(1) causes core generation, skip that for SIGINT, SIGHUP */
184  if (signum == SIGINT || signum == SIGHUP)
185  os_exit (0);
186  else
187  os_exit (1);
188  }
189  else
190  clib_warning ("%s", syslog_msg);
191 
192 }
193 
194 static clib_error_t *
196 {
197  uword i;
198  struct sigaction sa;
199 
200  /* give a big enough buffer for msg, most likely it can avoid vec_resize */
201  vec_alloc (syslog_msg, 2048);
202 
203  for (i = 1; i < 32; i++)
204  {
205  clib_memset (&sa, 0, sizeof (sa));
206  sa.sa_sigaction = (void *) unix_signal_handler;
207  sa.sa_flags = SA_SIGINFO;
208 
209  switch (i)
210  {
211  /* these signals take the default action */
212  case SIGKILL:
213  case SIGSTOP:
214  case SIGUSR1:
215  case SIGUSR2:
216  case SIGPROF:
217  continue;
218 
219  /* ignore SIGPIPE, SIGCHLD */
220  case SIGPIPE:
221  case SIGCHLD:
222  sa.sa_sigaction = (void *) SIG_IGN;
223  break;
224 
225  /* catch and handle all other signals */
226  default:
227  break;
228  }
229 
230  if (sigaction (i, &sa, 0) < 0)
231  return clib_error_return_unix (0, "sigaction %U", format_signal, i);
232  }
233 
234  return 0;
235 }
236 
237 static void
238 unix_error_handler (void *arg, u8 * msg, int msg_len)
239 {
240  unix_main_t *um = arg;
241 
242  /* Echo to stderr when interactive or syslog is disabled. */
244  {
245  CLIB_UNUSED (int r) = write (2, msg, msg_len);
246  }
247  else
248  {
249  char save = msg[msg_len - 1];
250 
251  /* Null Terminate. */
252  msg[msg_len - 1] = 0;
253 
254  syslog (LOG_ERR | LOG_DAEMON, "%s", msg);
255 
256  msg[msg_len - 1] = save;
257  }
258 }
259 
260 void
262 {
263  unix_main_t *um = &unix_main;
264 
265  if (um->flags & UNIX_FLAG_INTERACTIVE || error == 0)
266  return;
267 
268  {
269  char save;
270  u8 *msg;
271  u32 msg_len;
272 
273  msg = error->what;
274  msg_len = vec_len (msg);
275 
276  /* Null Terminate. */
277  save = msg[msg_len - 1];
278  msg[msg_len - 1] = 0;
279 
280  syslog (LOG_ERR | LOG_DAEMON, "%s", msg);
281 
282  msg[msg_len - 1] = save;
283  }
284 }
285 
286 static uword
289 {
290  unix_main_t *um = &unix_main;
291  u8 *buf = 0;
292  uword l, n = 1;
293 
294  vlib_process_suspend (vm, 2.0);
295 
296  while (um->unix_config_complete == 0)
297  vlib_process_suspend (vm, 0.1);
298 
299  if (um->startup_config_filename)
300  {
301  unformat_input_t sub_input;
302  int fd;
303  struct stat s;
304  char *fn = (char *) um->startup_config_filename;
305 
306  fd = open (fn, O_RDONLY);
307  if (fd < 0)
308  {
309  clib_warning ("failed to open `%s'", fn);
310  return 0;
311  }
312 
313  if (fstat (fd, &s) < 0)
314  {
315  clib_warning ("failed to stat `%s'", fn);
316  bail:
317  close (fd);
318  return 0;
319  }
320 
321  if (!(S_ISREG (s.st_mode) || S_ISLNK (s.st_mode)))
322  {
323  clib_warning ("not a regular file: `%s'", fn);
324  goto bail;
325  }
326 
327  while (n > 0)
328  {
329  l = vec_len (buf);
330  vec_resize (buf, 4096);
331  n = read (fd, buf + l, 4096);
332  if (n > 0)
333  {
334  _vec_len (buf) = l + n;
335  if (n < 4096)
336  break;
337  }
338  else
339  break;
340  }
341  if (um->log_fd && vec_len (buf))
342  {
343  u8 *lv = 0;
344  lv = format (lv, "%U: ***** Startup Config *****\n%v",
345  format_timeval, 0 /* current bat-time */ ,
346  0 /* current bat-format */ ,
347  buf);
348  {
349  int rv __attribute__ ((unused)) =
350  write (um->log_fd, lv, vec_len (lv));
351  }
352  vec_reset_length (lv);
353  lv = format (lv, "%U: ***** End Startup Config *****\n",
354  format_timeval, 0 /* current bat-time */ ,
355  0 /* current bat-format */ );
356  {
357  int rv __attribute__ ((unused)) =
358  write (um->log_fd, lv, vec_len (lv));
359  }
360  vec_free (lv);
361  }
362 
363  if (vec_len (buf))
364  {
365  unformat_init_vector (&sub_input, buf);
366  vlib_cli_input (vm, &sub_input, 0, 0);
367  /* frees buf for us */
368  unformat_free (&sub_input);
369  }
370  close (fd);
371  }
372  return 0;
373 }
374 
375 /* *INDENT-OFF* */
376 VLIB_REGISTER_NODE (startup_config_node,static) = {
377  .function = startup_config_process,
378  .type = VLIB_NODE_TYPE_PROCESS,
379  .name = "startup-config-process",
380  .process_log2_n_stack_bytes = 18,
381 };
382 /* *INDENT-ON* */
383 
384 static clib_error_t *
386 {
387  unix_main_t *um = &unix_main;
388  clib_error_t *error = 0;
389  gid_t gid;
390  int pidfd = -1;
391 
392  /* Defaults */
395 
397  {
398  char *cli_prompt;
399  if (unformat (input, "interactive"))
401  else if (unformat (input, "nodaemon"))
402  um->flags |= UNIX_FLAG_NODAEMON;
403  else if (unformat (input, "nosyslog"))
404  um->flags |= UNIX_FLAG_NOSYSLOG;
405  else if (unformat (input, "cli-prompt %s", &cli_prompt))
406  vlib_unix_cli_set_prompt (cli_prompt);
407  else
408  if (unformat (input, "cli-listen %s", &um->cli_listen_socket.config))
409  ;
410  else if (unformat (input, "runtime-dir %s", &um->runtime_dir))
411  ;
412  else if (unformat (input, "cli-line-mode"))
413  um->cli_line_mode = 1;
414  else if (unformat (input, "cli-no-banner"))
415  um->cli_no_banner = 1;
416  else if (unformat (input, "cli-no-pager"))
417  um->cli_no_pager = 1;
418  else if (unformat (input, "poll-sleep-usec %d", &um->poll_sleep_usec))
419  ;
420  else if (unformat (input, "cli-pager-buffer-limit %d",
422  ;
423  else
424  if (unformat (input, "cli-history-limit %d", &um->cli_history_limit))
425  ;
426  else if (unformat (input, "coredump-size"))
427  {
428  uword coredump_size = 0;
429  if (unformat (input, "unlimited"))
430  {
431  coredump_size = RLIM_INFINITY;
432  }
433  else
434  if (!unformat (input, "%U", unformat_memory_size, &coredump_size))
435  {
436  return clib_error_return (0,
437  "invalid coredump-size parameter `%U'",
438  format_unformat_error, input);
439  }
440  const struct rlimit new_limit = { coredump_size, coredump_size };
441  if (0 != setrlimit (RLIMIT_CORE, &new_limit))
442  {
443  clib_unix_warning ("prlimit() failed");
444  }
445  }
446  else if (unformat (input, "full-coredump"))
447  {
448  int fd;
449 
450  fd = open ("/proc/self/coredump_filter", O_WRONLY);
451  if (fd >= 0)
452  {
453  if (write (fd, "0x6f\n", 5) != 5)
454  clib_unix_warning ("coredump filter write failed!");
455  close (fd);
456  }
457  else
458  clib_unix_warning ("couldn't open /proc/self/coredump_filter");
459  }
460  else if (unformat (input, "startup-config %s",
462  ;
463  else if (unformat (input, "exec %s", &um->startup_config_filename))
464  ;
465  else if (unformat (input, "log %s", &um->log_filename))
466  {
467  um->log_fd = open ((char *) um->log_filename,
468  O_CREAT | O_WRONLY | O_APPEND, 0644);
469  if (um->log_fd < 0)
470  {
471  clib_warning ("couldn't open log '%s'\n", um->log_filename);
472  um->log_fd = 0;
473  }
474  else
475  {
476  u8 *lv = 0;
477  lv = format (0, "%U: ***** Start: PID %d *****\n",
478  format_timeval, 0 /* current bat-time */ ,
479  0 /* current bat-format */ ,
480  getpid ());
481  {
482  int rv __attribute__ ((unused)) =
483  write (um->log_fd, lv, vec_len (lv));
484  }
485  vec_free (lv);
486  }
487  }
488  else if (unformat (input, "gid %U", unformat_unix_gid, &gid))
489  {
490  if (setegid (gid) == -1)
491  return clib_error_return_unix (0, "setegid");
492  }
493  else if (unformat (input, "pidfile %s", &um->pidfile))
494  ;
495  else
496  return clib_error_return (0, "unknown input `%U'",
497  format_unformat_error, input);
498  }
499 
500  if (um->runtime_dir == 0)
501  {
502  uid_t uid = geteuid ();
503  if (uid == 00)
504  um->runtime_dir = format (0, "/run/%s%c",
505  vlib_default_runtime_dir, 0);
506  else
507  um->runtime_dir = format (0, "/run/user/%u/%s%c", uid,
508  vlib_default_runtime_dir, 0);
509  }
510 
511  /* Ensure the runtime directory is created */
512  error = vlib_unix_recursive_mkdir ((char *) um->runtime_dir);
513  if (error)
514  return error;
515 
516  error = setup_signal_handlers (um);
517  if (error)
518  return error;
519 
520  if (um->pidfile)
521  {
522  if ((error = vlib_unix_validate_runtime_file (um,
523  (char *) um->pidfile,
524  &um->pidfile)))
525  return error;
526 
527  if (((pidfd = open ((char *) um->pidfile,
528  O_CREAT | O_WRONLY | O_TRUNC, 0644)) < 0))
529  {
530  return clib_error_return_unix (0, "open");
531  }
532  }
533 
535  {
536  openlog (vm->name, LOG_CONS | LOG_PERROR | LOG_PID, LOG_DAEMON);
538 
539  if (!(um->flags & UNIX_FLAG_NODAEMON) && daemon ( /* chdir to / */ 0,
540  /* stdin/stdout/stderr -> /dev/null */
541  0) < 0)
542  clib_error_return (0, "daemon () fails");
543  }
544 
545  if (pidfd >= 0)
546  {
547  u8 *lv = format (0, "%d", getpid ());
548  if (write (pidfd, (char *) lv, vec_len (lv)) != vec_len (lv))
549  {
550  vec_free (lv);
551  close (pidfd);
552  return clib_error_return_unix (0, "write");
553  }
554  vec_free (lv);
555  close (pidfd);
556  }
557 
558  um->unix_config_complete = 1;
559 
560  return 0;
561 }
562 
563 /* unix { ... } configuration. */
564 /*?
565  *
566  * @cfgcmd{interactive}
567  * Attach CLI to stdin/out and provide a debugging command line interface.
568  * Implies @c nodaemon.
569  *
570  * @cfgcmd{nodaemon}
571  * Do not fork or background the VPP process. Typically used when invoking
572  * VPP applications from a process monitor.
573  *
574  * @cfgcmd{nosyslog}
575  * Do not send e.g. clib_warning(...) output to syslog. Used
576  * when invoking VPP applications from a process monitor which
577  * pipe stdout/stderr to a dedicated logger service.
578  *
579  * @cfgcmd{exec, &lt;filename&gt;}
580  * @par <code>startup-config &lt;filename&gt;</code>
581  * Read startup operational configuration from @c filename.
582  * The contents of the file will be performed as though entered at the CLI.
583  * The two keywords are aliases for the same function; if both are specified,
584  * only the last will have an effect.
585  *
586  * @cfgcmd{log, &lt;filename&gt;}
587  * Logs the startup configuration and all subsequent CLI commands in
588  * @c filename.
589  * Very useful in situations where folks don't remember or can't be bothered
590  * to include CLI commands in bug reports.
591  *
592  * @cfgcmd{pidfile, &lt;filename&gt;}
593  * Writes the pid of the main thread in @c filename.
594  *
595  * @cfgcmd{full-coredump}
596  * Ask the Linux kernel to dump all memory-mapped address regions, instead
597  * of just text+data+bss.
598  *
599  * @cfgcmd{runtime-dir}
600  * Define directory where VPP is going to store all runtime files.
601  * Default is /run/vpp when running as root, /run/user/<UID>/vpp if running as
602  * an unprivileged user.
603  *
604  * @cfgcmd{cli-listen, &lt;address:port&gt;}
605  * Bind the CLI to listen at the address and port given. @c localhost
606  * on TCP port @c 5002, given as <tt>cli-listen localhost:5002</tt>,
607  * is typical.
608  *
609  * @cfgcmd{cli-line-mode}
610  * Disable character-by-character I/O on stdin. Useful when combined with,
611  * for example, <tt>emacs M-x gud-gdb</tt>.
612  *
613  * @cfgcmd{cli-prompt, &lt;string&gt;}
614  * Configure the CLI prompt to be @c string.
615  *
616  * @cfgcmd{cli-history-limit, &lt;nn&gt;}
617  * Limit command history to @c nn lines. A value of @c 0
618  * disables command history. Default value: @c 50
619  *
620  * @cfgcmd{cli-no-banner}
621  * Disable the login banner on stdin and Telnet connections.
622  *
623  * @cfgcmd{cli-no-pager}
624  * Disable the output pager.
625  *
626  * @cfgcmd{cli-pager-buffer-limit, &lt;nn&gt;}
627  * Limit pager buffer to @c nn lines of output.
628  * A value of @c 0 disables the pager. Default value: @c 100000
629  *
630  * @cfgcmd{gid, &lt;nn&gt;}
631  * Set the effective gid under which the vpp process is to run.
632  *
633  * @cfgcmd{poll-sleep-usec, &lt;nn&gt;}
634  * Set a fixed poll sleep interval between main loop polls.
635 ?*/
637 
638 static clib_error_t *
640 {
641  /* Close syslog connection. */
642  closelog ();
643  return 0;
644 }
645 
647 
649 
650 static uword
652 {
653  vlib_main_t *vm = (vlib_main_t *) arg;
654  unformat_input_t input;
655  int i;
656 
658 
659  unformat_init_command_line (&input, (char **) vm->argv);
660  i = vlib_main (vm, &input);
661  unformat_free (&input);
662 
663  return i;
664 }
665 
666 u8 *
668 {
669  ASSERT (thread_index < vec_len (vlib_thread_stacks));
670  vlib_thread_stacks[thread_index] = clib_mem_alloc_aligned
672 
673  /*
674  * Disallow writes to the bottom page of the stack, to
675  * catch stack overflows.
676  */
677  if (mprotect (vlib_thread_stacks[thread_index],
678  clib_mem_get_page_size (), PROT_READ) < 0)
679  clib_unix_warning ("thread stack");
680  return vlib_thread_stacks[thread_index];
681 }
682 
683 int
684 vlib_unix_main (int argc, char *argv[])
685 {
686  vlib_main_t *vm = &vlib_global_main; /* one and only time for this! */
687  unformat_input_t input;
688  clib_error_t *e;
689  int i;
690 
691  vm->argv = (u8 **) argv;
692  vm->name = argv[0];
693  vm->heap_base = clib_mem_get_heap ();
694  vm->heap_aligned_base = (void *)
695  (((uword) vm->heap_base) & ~(VLIB_FRAME_ALIGN - 1));
696  ASSERT (vm->heap_base);
697 
698  clib_time_init (&vm->clib_time);
699 
700  unformat_init_command_line (&input, (char **) vm->argv);
701  if ((e = vlib_plugin_config (vm, &input)))
702  {
703  clib_error_report (e);
704  return 1;
705  }
706  unformat_free (&input);
707 
708  i = vlib_plugin_early_init (vm);
709  if (i)
710  return i;
711 
712  unformat_init_command_line (&input, (char **) vm->argv);
713  if (vm->init_functions_called == 0)
714  vm->init_functions_called = hash_create (0, /* value bytes */ 0);
715  e = vlib_call_all_config_functions (vm, &input, 1 /* early */ );
716  if (e != 0)
717  {
718  clib_error_report (e);
719  return 1;
720  }
721  unformat_free (&input);
722 
723  /* always load symbols, for signal handler and mheap memory get/put backtrace */
724  clib_elf_main_init (vm->name);
725 
726  vec_validate (vlib_thread_stacks, 0);
728 
729  __os_thread_index = 0;
730  vm->thread_index = 0;
731 
733  i = clib_calljmp (thread0, (uword) vm,
734  (void *) (vlib_thread_stacks[0] +
736  return i;
737 }
738 
739 /*
740  * fd.io coding-style-patch-verification: ON
741  *
742  * Local Variables:
743  * eval: (c-set-style "gnu")
744  * End:
745  */
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:509
int vlib_unix_main(int argc, char *argv[])
Definition: main.c:684
unix_main_t unix_main
Definition: main.c:62
vlib_main_t vlib_global_main
Definition: main.c:1983
#define UNIX_FLAG_NOSYSLOG
Definition: unix.h:62
#define CLIB_UNUSED(x)
Definition: clib.h:87
void vlib_unix_cli_set_prompt(char *prompt)
Set the CLI prompt.
Definition: cli.c:3279
u32 flags
Definition: unix.h:58
volatile int unix_config_complete
Definition: unix.h:83
u32 poll_sleep_usec
Definition: unix.h:108
u32 cli_pager_buffer_limit
Definition: unix.h:99
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
uword clib_backtrace(uword *callers, uword max_callers, uword n_frames_to_skip)
Definition: backtrace.c:226
u32 thread_index
Definition: main.h:249
u32 main_loop_exit_set
Definition: main.h:158
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:592
static clib_error_t * unix_main_init(vlib_main_t *vm)
Definition: main.c:66
clib_error_t * vlib_plugin_config(vlib_main_t *vm, unformat_input_t *input)
Definition: plugin.c:628
unformat_function_t unformat_unix_gid
Definition: format.h:317
static clib_error_t * unix_exit(vlib_main_t *vm)
Definition: main.c:639
vlib_main_t * vm
Definition: in2out_ed.c:1582
static void unix_signal_handler(int signum, siginfo_t *si, ucontext_t *uc)
Definition: main.c:100
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
clib_time_t clib_time
Definition: main.h:124
void clib_error_register_handler(clib_error_handler_func_t func, void *arg)
Definition: error.c:75
clib_socket_t cli_listen_socket
Definition: unix.h:66
int vlib_cli_input(vlib_main_t *vm, unformat_input_t *input, vlib_cli_output_function_t *function, uword function_arg)
Definition: cli.c:656
static void unix_error_handler(void *arg, u8 *msg, int msg_len)
Definition: main.c:238
#define vec_alloc(V, N)
Allocate space for N more elements (no header, unspecified alignment)
Definition: vec.h:319
#define UNIX_FLAG_NODAEMON
Definition: unix.h:61
unsigned char u8
Definition: types.h:56
int log_fd
Definition: unix.h:87
#define vec_reset_length(v)
Reset vector length to zero NULL-pointer tolerant.
static uword vlib_process_suspend(vlib_main_t *vm, f64 dt)
Suspend a vlib cooperative multi-tasking thread for a period of time.
Definition: node_funcs.h:482
u8 * format_timeval(u8 *s, va_list *args)
Definition: unix-formats.c:771
static int unsetup_signal_handlers(int sig)
Definition: main.c:81
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:173
u8 * pidfile
Definition: unix.h:80
void * heap_aligned_base
Definition: main.h:177
#define clib_error_return(e, args...)
Definition: error.h:99
#define VLIB_FRAME_ALIGN
Definition: node.h:378
clib_file_main_t file_main
Definition: main.c:63
#define vec_resize(V, N)
Resize a vector (no header, unspecified alignment) Add N elements to end of given vector V...
Definition: vec.h:281
static_always_inline void vlib_process_start_switch_stack(vlib_main_t *vm, vlib_process_t *p)
Definition: node_funcs.h:56
unsigned int u32
Definition: types.h:88
void os_exit(int code)
Definition: main.c:378
vlib_main_t * vlib_main
Definition: unix.h:56
int vlib_plugin_early_init(vlib_main_t *vm)
Definition: plugin.c:495
char * name
Definition: main.h:171
int cli_line_mode
Definition: unix.h:90
struct _unformat_input_t unformat_input_t
uword clib_mem_get_page_size(void)
Definition: mem.c:51
#define clib_error_return_unix(e, args...)
Definition: error.h:102
int cli_no_banner
Definition: unix.h:96
void unformat_init_command_line(unformat_input_t *input, char *argv[])
Definition: unformat.c:1013
u8 * startup_config_filename
Definition: unix.h:74
u8 ** vlib_thread_stacks
Definition: main.c:648
uword * init_functions_called
Definition: main.h:246
void clib_time_init(clib_time_t *c)
Definition: time.c:207
u32 cli_history_limit
Definition: unix.h:93
RFC5424 syslog protocol declarations.
void unformat_init_vector(unformat_input_t *input, u8 *vector_string)
Definition: unformat.c:1037
u8 ** argv
Definition: main.h:265
#define VLIB_EARLY_CONFIG_FUNCTION(x, n,...)
Definition: init.h:226
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:169
#define UNFORMAT_END_OF_INPUT
Definition: format.h:145
sll srl srl sll sra u16x4 i
Definition: vector_sse42.h:317
void vlib_unix_error_report(vlib_main_t *vm, clib_error_t *error)
Definition: main.c:261
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:380
void * heap_base
Definition: main.h:174
int cli_no_pager
Definition: unix.h:102
#define VLIB_MAIN_LOOP_EXIT_FUNCTION(x)
Definition: init.h:178
#define clib_warning(format, args...)
Definition: error.h:59
void clib_elf_main_init(char *exec_path)
Definition: elf_clib.c:257
#define ARRAY_LEN(x)
Definition: clib.h:67
#define UNIX_CLI_DEFAULT_PAGER_LIMIT
Default CLI pager limit is not configured in startup.conf.
Definition: main.c:54
static void * clib_mem_get_heap(void)
Definition: mem.h:262
#define hash_create(elts, value_bytes)
Definition: hash.h:696
#define ASSERT(truth)
static uword thread0(uword arg)
Definition: main.c:651
#define UNIX_FLAG_INTERACTIVE
Definition: unix.h:60
static_always_inline void vlib_process_finish_switch_stack(vlib_main_t *vm)
Definition: node_funcs.h:66
#define clib_error_report(e)
Definition: error.h:113
int vlib_main(vlib_main_t *volatile vm, unformat_input_t *input)
Definition: main.c:2071
clib_error_t * vlib_unix_recursive_mkdir(char *path)
Definition: util.c:103
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
#define UNIX_CLI_DEFAULT_HISTORY
Default CLI history depth if not configured in startup.conf.
Definition: main.c:57
u64 uword
Definition: types.h:112
static void unformat_free(unformat_input_t *i)
Definition: format.h:163
u8 * format_signal(u8 *s, va_list *args)
Definition: unix-formats.c:858
clib_error_t * vlib_call_all_config_functions(vlib_main_t *vm, unformat_input_t *input, int is_early)
Definition: init.c:405
#define clib_unix_warning(format, args...)
Definition: error.h:68
#define VLIB_THREAD_STACK_SIZE
Definition: threads.h:67
format_function_t format_clib_elf_symbol_with_address
Definition: elf_clib.h:134
static clib_error_t * unix_config(vlib_main_t *vm, unformat_input_t *input)
Definition: main.c:385
unformat_function_t unformat_memory_size
Definition: format.h:296
clib_error_t * vlib_unix_validate_runtime_file(unix_main_t *um, const char *path, u8 **full_path)
Definition: util.c:138
static void * clib_mem_alloc_aligned(uword size, uword align)
Definition: mem.h:165
uword clib_calljmp(uword(*func)(uword func_arg), uword func_arg, void *stack)
volatile u32 main_loop_exit_now
Definition: main.h:160
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
u8 * runtime_dir
Definition: unix.h:77
static uword startup_config_process(vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f)
Definition: main.c:287
u8 si
Definition: lisp_types.api:47
static clib_error_t * setup_signal_handlers(unix_main_t *um)
Definition: main.c:195
#define VLIB_INITS(...)
Definition: init.h:357
u8 * vlib_thread_stack_init(uword thread_index)
Definition: main.c:667
u8 * log_filename
Definition: unix.h:86
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:978
u8 * format_ucontext_pc(u8 *s, va_list *args)
Definition: unix-formats.c:909
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:171