FD.io VPP  v19.04.2-12-g66b1689
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;
71 }
72 
74 
75 static int
77 {
78  struct sigaction sa;
79 
80  sa.sa_handler = SIG_DFL;
81  sa.sa_flags = 0;
82  sigemptyset (&sa.sa_mask);
83  return sigaction (sig, &sa, 0);
84 }
85 
86 
87 /* allocate this buffer from mheap when setting up the signal handler.
88  dangerous to vec_resize it when crashing, mheap itself might have been
89  corruptted already */
90 static u8 *syslog_msg = 0;
91 static int last_signum = 0;
92 static uword last_faulting_address = 0;
93 
94 static void
95 unix_signal_handler (int signum, siginfo_t * si, ucontext_t * uc)
96 {
97  uword fatal = 0;
98 
99  /* These come in handy when looking at core files from optimized images */
100  last_signum = signum;
101  last_faulting_address = (uword) si->si_addr;
102 
103  syslog_msg = format (syslog_msg, "received signal %U, PC %U",
104  format_signal, signum, format_ucontext_pc, uc);
105 
106  if (signum == SIGSEGV)
107  syslog_msg = format (syslog_msg, ", faulting address %p", si->si_addr);
108 
109  switch (signum)
110  {
111  /* these (caught) signals cause the application to exit */
112  case SIGTERM:
113  /*
114  * Ignore SIGTERM if it's sent before we're ready.
115  */
116  if (unix_main.vlib_main && unix_main.vlib_main->main_loop_exit_set)
117  {
118  syslog (LOG_ERR | LOG_DAEMON, "received SIGTERM, exiting...");
119  unix_main.vlib_main->main_loop_exit_now = 1;
120  }
121  else
122  syslog (LOG_ERR | LOG_DAEMON, "IGNORE early SIGTERM...");
123  break;
124  /* fall through */
125  case SIGQUIT:
126  case SIGINT:
127  case SIGILL:
128  case SIGBUS:
129  case SIGSEGV:
130  case SIGHUP:
131  case SIGFPE:
132  case SIGABRT:
133  fatal = 1;
134  break;
135 
136  /* by default, print a message and continue */
137  default:
138  fatal = 0;
139  break;
140  }
141 
142  /* Null terminate. */
143  vec_add1 (syslog_msg, 0);
144 
145  if (fatal)
146  {
147  syslog (LOG_ERR | LOG_DAEMON, "%s", syslog_msg);
148 
149  /* Address of callers: outer first, inner last. */
150  uword callers[15];
151  uword n_callers = clib_backtrace (callers, ARRAY_LEN (callers), 0);
152  int i;
153  for (i = 0; i < n_callers; i++)
154  {
155  vec_reset_length (syslog_msg);
156 
157  syslog_msg =
158  format (syslog_msg, "#%-2d 0x%016lx %U%c", i, callers[i],
159  format_clib_elf_symbol_with_address, callers[i], 0);
160 
161  syslog (LOG_ERR | LOG_DAEMON, "%s", syslog_msg);
162  }
163 
164  /* have to remove SIGABRT to avoid recusive - os_exit calling abort() */
165  unsetup_signal_handlers (SIGABRT);
166 
167  os_exit (1);
168  }
169  else
170  clib_warning ("%s", syslog_msg);
171 
172 }
173 
174 static clib_error_t *
176 {
177  uword i;
178  struct sigaction sa;
179 
180  /* give a big enough buffer for msg, most likely it can avoid vec_resize */
181  vec_alloc (syslog_msg, 2048);
182 
183  for (i = 1; i < 32; i++)
184  {
185  clib_memset (&sa, 0, sizeof (sa));
186  sa.sa_sigaction = (void *) unix_signal_handler;
187  sa.sa_flags = SA_SIGINFO;
188 
189  switch (i)
190  {
191  /* these signals take the default action */
192  case SIGKILL:
193  case SIGSTOP:
194  case SIGUSR1:
195  case SIGUSR2:
196  continue;
197 
198  /* ignore SIGPIPE, SIGCHLD */
199  case SIGPIPE:
200  case SIGCHLD:
201  sa.sa_sigaction = (void *) SIG_IGN;
202  break;
203 
204  /* catch and handle all other signals */
205  default:
206  break;
207  }
208 
209  if (sigaction (i, &sa, 0) < 0)
210  return clib_error_return_unix (0, "sigaction %U", format_signal, i);
211  }
212 
213  return 0;
214 }
215 
216 static void
217 unix_error_handler (void *arg, u8 * msg, int msg_len)
218 {
219  unix_main_t *um = arg;
220 
221  /* Echo to stderr when interactive. */
222  if (um->flags & UNIX_FLAG_INTERACTIVE)
223  {
224  CLIB_UNUSED (int r) = write (2, msg, msg_len);
225  }
226  else
227  {
228  char save = msg[msg_len - 1];
229 
230  /* Null Terminate. */
231  msg[msg_len - 1] = 0;
232 
233  syslog (LOG_ERR | LOG_DAEMON, "%s", msg);
234 
235  msg[msg_len - 1] = save;
236  }
237 }
238 
239 void
241 {
242  unix_main_t *um = &unix_main;
243 
244  if (um->flags & UNIX_FLAG_INTERACTIVE || error == 0)
245  return;
246 
247  {
248  char save;
249  u8 *msg;
250  u32 msg_len;
251 
252  msg = error->what;
253  msg_len = vec_len (msg);
254 
255  /* Null Terminate. */
256  save = msg[msg_len - 1];
257  msg[msg_len - 1] = 0;
258 
259  syslog (LOG_ERR | LOG_DAEMON, "%s", msg);
260 
261  msg[msg_len - 1] = save;
262  }
263 }
264 
265 static uword
268 {
269  unix_main_t *um = &unix_main;
270  u8 *buf = 0;
271  uword l, n = 1;
272 
273  vlib_process_suspend (vm, 2.0);
274 
275  while (um->unix_config_complete == 0)
276  vlib_process_suspend (vm, 0.1);
277 
278  if (um->startup_config_filename)
279  {
280  unformat_input_t sub_input;
281  int fd;
282  struct stat s;
283  char *fn = (char *) um->startup_config_filename;
284 
285  fd = open (fn, O_RDONLY);
286  if (fd < 0)
287  {
288  clib_warning ("failed to open `%s'", fn);
289  return 0;
290  }
291 
292  if (fstat (fd, &s) < 0)
293  {
294  clib_warning ("failed to stat `%s'", fn);
295  bail:
296  close (fd);
297  return 0;
298  }
299 
300  if (!(S_ISREG (s.st_mode) || S_ISLNK (s.st_mode)))
301  {
302  clib_warning ("not a regular file: `%s'", fn);
303  goto bail;
304  }
305 
306  while (n > 0)
307  {
308  l = vec_len (buf);
309  vec_resize (buf, 4096);
310  n = read (fd, buf + l, 4096);
311  if (n > 0)
312  {
313  _vec_len (buf) = l + n;
314  if (n < 4096)
315  break;
316  }
317  else
318  break;
319  }
320  if (um->log_fd && vec_len (buf))
321  {
322  u8 *lv = 0;
323  lv = format (lv, "%U: ***** Startup Config *****\n%v",
324  format_timeval, 0 /* current bat-time */ ,
325  0 /* current bat-format */ ,
326  buf);
327  {
328  int rv __attribute__ ((unused)) =
329  write (um->log_fd, lv, vec_len (lv));
330  }
331  vec_reset_length (lv);
332  lv = format (lv, "%U: ***** End Startup Config *****\n",
333  format_timeval, 0 /* current bat-time */ ,
334  0 /* current bat-format */ );
335  {
336  int rv __attribute__ ((unused)) =
337  write (um->log_fd, lv, vec_len (lv));
338  }
339  vec_free (lv);
340  }
341 
342  if (vec_len (buf))
343  {
344  unformat_init_vector (&sub_input, buf);
345  vlib_cli_input (vm, &sub_input, 0, 0);
346  /* frees buf for us */
347  unformat_free (&sub_input);
348  }
349  close (fd);
350  }
351  return 0;
352 }
353 
354 /* *INDENT-OFF* */
355 VLIB_REGISTER_NODE (startup_config_node,static) = {
356  .function = startup_config_process,
357  .type = VLIB_NODE_TYPE_PROCESS,
358  .name = "startup-config-process",
359 };
360 /* *INDENT-ON* */
361 
362 static clib_error_t *
364 {
365  unix_main_t *um = &unix_main;
366  clib_error_t *error = 0;
367  gid_t gid;
368  int pidfd = -1;
369 
370  /* Defaults */
373 
375  {
376  char *cli_prompt;
377  if (unformat (input, "interactive"))
379  else if (unformat (input, "nodaemon"))
380  um->flags |= UNIX_FLAG_NODAEMON;
381  else if (unformat (input, "cli-prompt %s", &cli_prompt))
382  vlib_unix_cli_set_prompt (cli_prompt);
383  else
384  if (unformat (input, "cli-listen %s", &um->cli_listen_socket.config))
385  ;
386  else if (unformat (input, "runtime-dir %s", &um->runtime_dir))
387  ;
388  else if (unformat (input, "cli-line-mode"))
389  um->cli_line_mode = 1;
390  else if (unformat (input, "cli-no-banner"))
391  um->cli_no_banner = 1;
392  else if (unformat (input, "cli-no-pager"))
393  um->cli_no_pager = 1;
394  else if (unformat (input, "poll-sleep-usec %d", &um->poll_sleep_usec))
395  ;
396  else if (unformat (input, "cli-pager-buffer-limit %d",
398  ;
399  else
400  if (unformat (input, "cli-history-limit %d", &um->cli_history_limit))
401  ;
402  else if (unformat (input, "coredump-size"))
403  {
404  uword coredump_size = 0;
405  if (unformat (input, "unlimited"))
406  {
407  coredump_size = RLIM_INFINITY;
408  }
409  else
410  if (!unformat (input, "%U", unformat_memory_size, &coredump_size))
411  {
412  return clib_error_return (0,
413  "invalid coredump-size parameter `%U'",
414  format_unformat_error, input);
415  }
416  const struct rlimit new_limit = { coredump_size, coredump_size };
417  if (0 != setrlimit (RLIMIT_CORE, &new_limit))
418  {
419  clib_unix_warning ("prlimit() failed");
420  }
421  }
422  else if (unformat (input, "full-coredump"))
423  {
424  int fd;
425 
426  fd = open ("/proc/self/coredump_filter", O_WRONLY);
427  if (fd >= 0)
428  {
429  if (write (fd, "0x6f\n", 5) != 5)
430  clib_unix_warning ("coredump filter write failed!");
431  close (fd);
432  }
433  else
434  clib_unix_warning ("couldn't open /proc/self/coredump_filter");
435  }
436  else if (unformat (input, "startup-config %s",
438  ;
439  else if (unformat (input, "exec %s", &um->startup_config_filename))
440  ;
441  else if (unformat (input, "log %s", &um->log_filename))
442  {
443  um->log_fd = open ((char *) um->log_filename,
444  O_CREAT | O_WRONLY | O_APPEND, 0644);
445  if (um->log_fd < 0)
446  {
447  clib_warning ("couldn't open log '%s'\n", um->log_filename);
448  um->log_fd = 0;
449  }
450  else
451  {
452  u8 *lv = 0;
453  lv = format (0, "%U: ***** Start: PID %d *****\n",
454  format_timeval, 0 /* current bat-time */ ,
455  0 /* current bat-format */ ,
456  getpid ());
457  {
458  int rv __attribute__ ((unused)) =
459  write (um->log_fd, lv, vec_len (lv));
460  }
461  vec_free (lv);
462  }
463  }
464  else if (unformat (input, "gid %U", unformat_unix_gid, &gid))
465  {
466  if (setegid (gid) == -1)
467  return clib_error_return_unix (0, "setegid");
468  }
469  else if (unformat (input, "pidfile %s", &um->pidfile))
470  ;
471  else
472  return clib_error_return (0, "unknown input `%U'",
473  format_unformat_error, input);
474  }
475 
476  if (um->runtime_dir == 0)
477  {
478  uid_t uid = geteuid ();
479  if (uid == 00)
480  um->runtime_dir = format (0, "/run/%s%c",
481  vlib_default_runtime_dir, 0);
482  else
483  um->runtime_dir = format (0, "/run/user/%u/%s%c", uid,
484  vlib_default_runtime_dir, 0);
485  }
486 
487  error = setup_signal_handlers (um);
488  if (error)
489  return error;
490 
491  if (um->pidfile)
492  {
493  if ((error = vlib_unix_validate_runtime_file (um,
494  (char *) um->pidfile,
495  &um->pidfile)))
496  return error;
497 
498  if (((pidfd = open ((char *) um->pidfile,
499  O_CREAT | O_WRONLY | O_TRUNC, 0644)) < 0))
500  {
501  return clib_error_return_unix (0, "open");
502  }
503  }
504 
505  if (!(um->flags & UNIX_FLAG_INTERACTIVE))
506  {
507  openlog (vm->name, LOG_CONS | LOG_PERROR | LOG_PID, LOG_DAEMON);
509 
510  if (!(um->flags & UNIX_FLAG_NODAEMON) && daemon ( /* chdir to / */ 0,
511  /* stdin/stdout/stderr -> /dev/null */
512  0) < 0)
513  clib_error_return (0, "daemon () fails");
514  }
515 
516  if (pidfd >= 0)
517  {
518  u8 *lv = format (0, "%d", getpid ());
519  if (write (pidfd, (char *) lv, vec_len (lv)) != vec_len (lv))
520  {
521  vec_free (lv);
522  close (pidfd);
523  return clib_error_return_unix (0, "write");
524  }
525  vec_free (lv);
526  close (pidfd);
527  }
528 
529  um->unix_config_complete = 1;
530 
531  return 0;
532 }
533 
534 /* unix { ... } configuration. */
535 /*?
536  *
537  * @cfgcmd{interactive}
538  * Attach CLI to stdin/out and provide a debugging command line interface.
539  * Implies @c nodaemon.
540  *
541  * @cfgcmd{nodaemon}
542  * Do not fork or background the VPP process. Typically used when invoking
543  * VPP applications from a process monitor.
544  *
545  * @cfgcmd{exec, &lt;filename&gt;}
546  * @par <code>startup-config &lt;filename&gt;</code>
547  * Read startup operational configuration from @c filename.
548  * The contents of the file will be performed as though entered at the CLI.
549  * The two keywords are aliases for the same function; if both are specified,
550  * only the last will have an effect.
551  *
552  * @cfgcmd{log, &lt;filename&gt;}
553  * Logs the startup configuration and all subsequent CLI commands in
554  * @c filename.
555  * Very useful in situations where folks don't remember or can't be bothered
556  * to include CLI commands in bug reports.
557  *
558  * @cfgcmd{pidfile, &lt;filename&gt;}
559  * Writes the pid of the main thread in @c filename.
560  *
561  * @cfgcmd{full-coredump}
562  * Ask the Linux kernel to dump all memory-mapped address regions, instead
563  * of just text+data+bss.
564  *
565  * @cfgcmd{runtime-dir}
566  * Define directory where VPP is going to store all runtime files.
567  * Default is /run/vpp.
568  *
569  * @cfgcmd{cli-listen, &lt;address:port&gt;}
570  * Bind the CLI to listen at the address and port given. @clocalhost
571  * on TCP port @c 5002, given as <tt>cli-listen localhost:5002</tt>,
572  * is typical.
573  *
574  * @cfgcmd{cli-line-mode}
575  * Disable character-by-character I/O on stdin. Useful when combined with,
576  * for example, <tt>emacs M-x gud-gdb</tt>.
577  *
578  * @cfgcmd{cli-prompt, &lt;string&gt;}
579  * Configure the CLI prompt to be @c string.
580  *
581  * @cfgcmd{cli-history-limit, &lt;nn&gt;}
582  * Limit commmand history to @c nn lines. A value of @c 0
583  * disables command history. Default value: @c 50
584  *
585  * @cfgcmd{cli-no-banner}
586  * Disable the login banner on stdin and Telnet connections.
587  *
588  * @cfgcmd{cli-no-pager}
589  * Disable the output pager.
590  *
591  * @cfgcmd{cli-pager-buffer-limit, &lt;nn&gt;}
592  * Limit pager buffer to @c nn lines of output.
593  * A value of @c 0 disables the pager. Default value: @c 100000
594 ?*/
596 
597 static clib_error_t *
599 {
600  /* Close syslog connection. */
601  closelog ();
602  return 0;
603 }
604 
606 
608 
609 static uword
611 {
612  vlib_main_t *vm = (vlib_main_t *) arg;
613  unformat_input_t input;
614  int i;
615 
616  unformat_init_command_line (&input, (char **) vm->argv);
617  i = vlib_main (vm, &input);
618  unformat_free (&input);
619 
620  return i;
621 }
622 
623 u8 *
625 {
626  vec_validate (vlib_thread_stacks, thread_index);
627  vlib_thread_stacks[thread_index] = clib_mem_alloc_aligned
629 
630  /*
631  * Disallow writes to the bottom page of the stack, to
632  * catch stack overflows.
633  */
634  if (mprotect (vlib_thread_stacks[thread_index],
635  clib_mem_get_page_size (), PROT_READ) < 0)
636  clib_unix_warning ("thread stack");
637  return vlib_thread_stacks[thread_index];
638 }
639 
640 int
641 vlib_unix_main (int argc, char *argv[])
642 {
643  vlib_main_t *vm = &vlib_global_main; /* one and only time for this! */
644  unformat_input_t input;
645  clib_error_t *e;
646  int i;
647 
648  vm->argv = (u8 **) argv;
649  vm->name = argv[0];
650  vm->heap_base = clib_mem_get_heap ();
651  vm->heap_aligned_base = (void *)
652  (((uword) vm->heap_base) & ~(VLIB_FRAME_ALIGN - 1));
653  ASSERT (vm->heap_base);
654 
655  unformat_init_command_line (&input, (char **) vm->argv);
656  if ((e = vlib_plugin_config (vm, &input)))
657  {
658  clib_error_report (e);
659  return 1;
660  }
661  unformat_free (&input);
662 
663  i = vlib_plugin_early_init (vm);
664  if (i)
665  return i;
666 
667  unformat_init_command_line (&input, (char **) vm->argv);
668  if (vm->init_functions_called == 0)
669  vm->init_functions_called = hash_create (0, /* value bytes */ 0);
670  e = vlib_call_all_config_functions (vm, &input, 1 /* early */ );
671  if (e != 0)
672  {
673  clib_error_report (e);
674  return 1;
675  }
676  unformat_free (&input);
677 
678  /* always load symbols, for signal handler and mheap memory get/put backtrace */
679  clib_elf_main_init (vm->name);
680 
682 
683  __os_thread_index = 0;
684  vm->thread_index = 0;
685 
686  i = clib_calljmp (thread0, (uword) vm,
687  (void *) (vlib_thread_stacks[0] +
689  return i;
690 }
691 
692 /*
693  * fd.io coding-style-patch-verification: ON
694  *
695  * Local Variables:
696  * eval: (c-set-style "gnu")
697  * End:
698  */
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:439
int vlib_unix_main(int argc, char *argv[])
Definition: main.c:641
unix_main_t unix_main
Definition: main.c:62
vlib_main_t vlib_global_main
Definition: main.c:1931
#define CLIB_UNUSED(x)
Definition: clib.h:82
static clib_error_t * unix_input_init(vlib_main_t *vm)
Definition: input.c:412
void vlib_cli_input(vlib_main_t *vm, unformat_input_t *input, vlib_cli_output_function_t *function, uword function_arg)
Definition: cli.c:725
u32 flags
Definition: unix.h:58
volatile int unix_config_complete
Definition: unix.h:81
u32 poll_sleep_usec
Definition: unix.h:106
u32 cli_pager_buffer_limit
Definition: unix.h:97
void vlib_unix_cli_set_prompt(char *prompt)
Set the CLI prompt.
Definition: cli.c:3061
uword clib_backtrace(uword *callers, uword max_callers, uword n_frames_to_skip)
Definition: backtrace.c:226
u32 thread_index
Definition: main.h:197
u32 main_loop_exit_set
Definition: main.h:104
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:522
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:481
unformat_function_t unformat_unix_gid
Definition: format.h:316
int i
static clib_error_t * unix_exit(vlib_main_t *vm)
Definition: main.c:598
clib_memset(h->entries, 0, sizeof(h->entries[0])*entries)
static void unix_signal_handler(int signum, siginfo_t *si, ucontext_t *uc)
Definition: main.c:95
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
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:64
static void unix_error_handler(void *arg, u8 *msg, int msg_len)
Definition: main.c:217
#define vec_alloc(V, N)
Allocate space for N more elements (no header, unspecified alignment)
Definition: vec.h:280
#define UNIX_FLAG_NODAEMON
Definition: unix.h:61
unsigned char u8
Definition: types.h:56
int log_fd
Definition: unix.h:85
#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:452
u8 * format_timeval(u8 *s, va_list *args)
Definition: unix-formats.c:771
static int unsetup_signal_handlers(int sig)
Definition: main.c:76
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:163
u8 * pidfile
Definition: unix.h:78
void * heap_aligned_base
Definition: main.h:123
#define clib_error_return(e, args...)
Definition: error.h:99
#define VLIB_FRAME_ALIGN
Definition: node.h:377
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:242
unsigned int u32
Definition: types.h:88
void os_exit(int code)
Definition: main.c:345
vlib_main_t * vlib_main
Definition: unix.h:56
#define vlib_call_init_function(vm, x)
Definition: init.h:260
int vlib_plugin_early_init(vlib_main_t *vm)
Definition: plugin.c:354
char * name
Definition: main.h:117
int cli_line_mode
Definition: unix.h:88
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:94
void unformat_init_command_line(unformat_input_t *input, char *argv[])
Definition: unformat.c:1007
u8 * startup_config_filename
Definition: unix.h:72
u8 ** vlib_thread_stacks
Definition: main.c:607
uword * init_functions_called
Definition: main.h:194
u32 cli_history_limit
Definition: unix.h:91
void unformat_init_vector(unformat_input_t *input, u8 *vector_string)
Definition: unformat.c:1031
u8 ** argv
Definition: main.h:213
#define VLIB_EARLY_CONFIG_FUNCTION(x, n,...)
Definition: init.h:216
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:169
#define UNFORMAT_END_OF_INPUT
Definition: format.h:144
vlib_main_t * vm
Definition: buffer.c:312
void vlib_unix_error_report(vlib_main_t *vm, clib_error_t *error)
Definition: main.c:240
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:341
void * heap_base
Definition: main.h:120
int cli_no_pager
Definition: unix.h:100
#define VLIB_MAIN_LOOP_EXIT_FUNCTION(x)
Definition: init.h:168
#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:62
#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:255
#define hash_create(elts, value_bytes)
Definition: hash.h:696
#define ASSERT(truth)
static uword thread0(uword arg)
Definition: main.c:610
#define UNIX_FLAG_INTERACTIVE
Definition: unix.h:60
#define clib_error_report(e)
Definition: error.h:113
int vlib_main(vlib_main_t *volatile vm, unformat_input_t *input)
Definition: main.c:1982
#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:162
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:94
#define clib_unix_warning(format, args...)
Definition: error.h:68
#define VLIB_THREAD_STACK_SIZE
Definition: threads.h:66
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:363
unformat_function_t unformat_memory_size
Definition: format.h:295
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:140
uword clib_calljmp(uword(*func)(uword func_arg), uword func_arg, void *stack)
volatile u32 main_loop_exit_now
Definition: main.h:106
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
u8 * runtime_dir
Definition: unix.h:75
static uword startup_config_process(vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f)
Definition: main.c:266
static clib_error_t * setup_signal_handlers(unix_main_t *um)
Definition: main.c:175
u8 * vlib_thread_stack_init(uword thread_index)
Definition: main.c:624
u8 * log_filename
Definition: unix.h:84
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972
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:170