#include <vlib/unix/unix.h>
#include <vlib/unix/plugin.h>
+#include <limits.h>
#include <signal.h>
#include <sys/ucontext.h>
#include <syslog.h>
dangerous to vec_resize it when crashing, mheap itself might have been
corrupted already */
static u8 *syslog_msg = 0;
-static int last_signum = 0;
-static uword last_faulting_address = 0;
+int vlib_last_signum = 0;
+uword vlib_last_faulting_address = 0;
static void
unix_signal_handler (int signum, siginfo_t * si, ucontext_t * uc)
uword fatal = 0;
/* These come in handy when looking at core files from optimized images */
- last_signum = signum;
- last_faulting_address = (uword) si->si_addr;
+ vlib_last_signum = signum;
+ vlib_last_faulting_address = (uword) si->si_addr;
syslog_msg = format (syslog_msg, "received signal %U, PC %U",
format_signal, signum, format_ucontext_pc, uc);
break;
}
-#ifdef CLIB_GCOV
- /*
- * Test framework sends SIGTERM, so we need to flush the
- * code coverage stats here.
- */
- {
- void __gcov_flush (void);
- __gcov_flush ();
- }
-#endif
-
/* Null terminate. */
vec_add1 (syslog_msg, 0);
/* have to remove SIGABRT to avoid recursive - os_exit calling abort() */
unsetup_signal_handlers (SIGABRT);
- os_exit (1);
+ /* os_exit(1) causes core generation, skip that for SIGINT, SIGHUP */
+ if (signum == SIGINT || signum == SIGHUP)
+ os_exit (0);
+ else
+ os_exit (1);
}
else
clib_warning ("%s", syslog_msg);
{
/* these signals take the default action */
case SIGKILL:
+ case SIGCONT:
case SIGSTOP:
case SIGUSR1:
case SIGUSR2:
+ case SIGPROF:
continue;
/* ignore SIGPIPE, SIGCHLD */
{
unix_main_t *um = arg;
- /* Echo to stderr when interactive. */
- if (um->flags & UNIX_FLAG_INTERACTIVE)
+ /* Echo to stderr when interactive or syslog is disabled. */
+ if (um->flags & (UNIX_FLAG_INTERACTIVE | UNIX_FLAG_NOSYSLOG))
{
CLIB_UNUSED (int r) = write (2, msg, msg_len);
}
else
{
- char save = msg[msg_len - 1];
-
- /* Null Terminate. */
- msg[msg_len - 1] = 0;
-
- syslog (LOG_ERR | LOG_DAEMON, "%s", msg);
-
- msg[msg_len - 1] = save;
+ syslog (LOG_ERR | LOG_DAEMON, "%.*s", msg_len, msg);
}
}
return;
{
- char save;
- u8 *msg;
- u32 msg_len;
-
- msg = error->what;
- msg_len = vec_len (msg);
-
- /* Null Terminate. */
- save = msg[msg_len - 1];
- msg[msg_len - 1] = 0;
-
- syslog (LOG_ERR | LOG_DAEMON, "%s", msg);
-
- msg[msg_len - 1] = save;
+ u8 *msg = error->what;
+ u32 len = vec_len (msg);
+ int msg_len = (len > INT_MAX) ? INT_MAX : len;
+ syslog (LOG_ERR | LOG_DAEMON, "%.*s", msg_len, msg);
}
}
vlib_node_runtime_t * rt, vlib_frame_t * f)
{
unix_main_t *um = &unix_main;
- u8 *buf = 0;
- uword l, n = 1;
+ unformat_input_t in;
vlib_process_suspend (vm, 2.0);
while (um->unix_config_complete == 0)
vlib_process_suspend (vm, 0.1);
- if (um->startup_config_filename)
+ if (!um->startup_config_filename)
{
- unformat_input_t sub_input;
- int fd;
- struct stat s;
- char *fn = (char *) um->startup_config_filename;
+ return 0;
+ }
- fd = open (fn, O_RDONLY);
- if (fd < 0)
- {
- clib_warning ("failed to open `%s'", fn);
- return 0;
- }
+ unformat_init_vector (&in,
+ format (0, "exec %s", um->startup_config_filename));
- if (fstat (fd, &s) < 0)
- {
- clib_warning ("failed to stat `%s'", fn);
- bail:
- close (fd);
- return 0;
- }
+ vlib_cli_input (vm, &in, 0, 0);
- if (!(S_ISREG (s.st_mode) || S_ISLNK (s.st_mode)))
- {
- clib_warning ("not a regular file: `%s'", fn);
- goto bail;
- }
+ unformat_free (&in);
- while (n > 0)
- {
- l = vec_len (buf);
- vec_resize (buf, 4096);
- n = read (fd, buf + l, 4096);
- if (n > 0)
- {
- _vec_len (buf) = l + n;
- if (n < 4096)
- break;
- }
- else
- break;
- }
- if (um->log_fd && vec_len (buf))
- {
- u8 *lv = 0;
- lv = format (lv, "%U: ***** Startup Config *****\n%v",
- format_timeval, 0 /* current bat-time */ ,
- 0 /* current bat-format */ ,
- buf);
- {
- int rv __attribute__ ((unused)) =
- write (um->log_fd, lv, vec_len (lv));
- }
- vec_reset_length (lv);
- lv = format (lv, "%U: ***** End Startup Config *****\n",
- format_timeval, 0 /* current bat-time */ ,
- 0 /* current bat-format */ );
- {
- int rv __attribute__ ((unused)) =
- write (um->log_fd, lv, vec_len (lv));
- }
- vec_free (lv);
- }
-
- if (vec_len (buf))
- {
- unformat_init_vector (&sub_input, buf);
- vlib_cli_input (vm, &sub_input, 0, 0);
- /* frees buf for us */
- unformat_free (&sub_input);
- }
- close (fd);
- }
return 0;
}
.function = startup_config_process,
.type = VLIB_NODE_TYPE_PROCESS,
.name = "startup-config-process",
+ .process_log2_n_stack_bytes = 18,
};
/* *INDENT-ON* */
static clib_error_t *
unix_config (vlib_main_t * vm, unformat_input_t * input)
{
+ vlib_global_main_t *vgm = vlib_get_global_main ();
unix_main_t *um = &unix_main;
clib_error_t *error = 0;
gid_t gid;
um->flags |= UNIX_FLAG_INTERACTIVE;
else if (unformat (input, "nodaemon"))
um->flags |= UNIX_FLAG_NODAEMON;
+ else if (unformat (input, "nosyslog"))
+ um->flags |= UNIX_FLAG_NOSYSLOG;
+ else if (unformat (input, "nocolor"))
+ um->flags |= UNIX_FLAG_NOCOLOR;
+ else if (unformat (input, "nobanner"))
+ um->flags |= UNIX_FLAG_NOBANNER;
else if (unformat (input, "cli-prompt %s", &cli_prompt))
vlib_unix_cli_set_prompt (cli_prompt);
else
{
u8 *lv = 0;
lv = format (0, "%U: ***** Start: PID %d *****\n",
- format_timeval, 0 /* current bat-time */ ,
- 0 /* current bat-format */ ,
- getpid ());
+ format_timeval, NULL /* current bat-format */,
+ 0 /* current bat-time */, getpid ());
{
int rv __attribute__ ((unused)) =
write (um->log_fd, lv, vec_len (lv));
if (error)
return error;
+ if (chdir ((char *) um->runtime_dir) < 0)
+ return clib_error_return_unix (0, "chdir('%s')", um->runtime_dir);
+
error = setup_signal_handlers (um);
if (error)
return error;
}
}
- if (!(um->flags & UNIX_FLAG_INTERACTIVE))
+ if (!(um->flags & (UNIX_FLAG_INTERACTIVE | UNIX_FLAG_NOSYSLOG)))
{
- openlog (vm->name, LOG_CONS | LOG_PERROR | LOG_PID, LOG_DAEMON);
+ openlog (vgm->name, LOG_CONS | LOG_PERROR | LOG_PID, LOG_DAEMON);
clib_error_register_handler (unix_error_handler, um);
if (!(um->flags & UNIX_FLAG_NODAEMON) && daemon ( /* chdir to / */ 0,
* Do not fork or background the VPP process. Typically used when invoking
* VPP applications from a process monitor.
*
+ * @cfgcmd{nosyslog}
+ * Do not send e.g. clib_warning(...) output to syslog. Used
+ * when invoking VPP applications from a process monitor which
+ * pipe stdout/stderr to a dedicated logger service.
+ *
+ * @cfgcmd{nocolor}
+ * Do not use colors in outputs.
+ * *
+ * @cfgcmd{nobanner}
+ * Do not display startup banner.
+ *
* @cfgcmd{exec, <filename>}
* @par <code>startup-config <filename></code>
* Read startup operational configuration from @c filename.
thread0 (uword arg)
{
vlib_main_t *vm = (vlib_main_t *) arg;
+ vlib_global_main_t *vgm = vlib_get_global_main ();
unformat_input_t input;
int i;
- unformat_init_command_line (&input, (char **) vm->argv);
+ vlib_process_finish_switch_stack (vm);
+
+ unformat_init_command_line (&input, (char **) vgm->argv);
i = vlib_main (vm, &input);
unformat_free (&input);
u8 *
vlib_thread_stack_init (uword thread_index)
{
+ void *stack;
ASSERT (thread_index < vec_len (vlib_thread_stacks));
- vlib_thread_stacks[thread_index] = clib_mem_alloc_aligned
- (VLIB_THREAD_STACK_SIZE, clib_mem_get_page_size ());
-
- /*
- * Disallow writes to the bottom page of the stack, to
- * catch stack overflows.
- */
- if (mprotect (vlib_thread_stacks[thread_index],
- clib_mem_get_page_size (), PROT_READ) < 0)
- clib_unix_warning ("thread stack");
- return vlib_thread_stacks[thread_index];
+ stack = clib_mem_vm_map_stack (VLIB_THREAD_STACK_SIZE,
+ CLIB_MEM_PAGE_SZ_DEFAULT,
+ "thread stack: thread %u", thread_index);
+
+ if (stack == CLIB_MEM_VM_MAP_FAILED)
+ clib_panic ("failed to allocate thread %u stack", thread_index);
+
+ vlib_thread_stacks[thread_index] = stack;
+ return stack;
}
+#ifndef PATH_MAX
+#define PATH_MAX 4096
+#endif
+
int
vlib_unix_main (int argc, char *argv[])
{
- vlib_main_t *vm = &vlib_global_main; /* one and only time for this! */
+ vlib_global_main_t *vgm = vlib_get_global_main ();
+ vlib_main_t *vm = vlib_get_first_main (); /* one and only time for this! */
unformat_input_t input;
clib_error_t *e;
+ char buffer[PATH_MAX];
int i;
- vm->argv = (u8 **) argv;
- vm->name = argv[0];
- vm->heap_base = clib_mem_get_heap ();
- vm->heap_aligned_base = (void *)
- (((uword) vm->heap_base) & ~(VLIB_FRAME_ALIGN - 1));
- ASSERT (vm->heap_base);
+ vec_validate_aligned (vgm->vlib_mains, 0, CLIB_CACHE_LINE_BYTES);
+
+ if ((i = readlink ("/proc/self/exe", buffer, sizeof (buffer) - 1)) > 0)
+ {
+ int j;
+ buffer[i] = 0;
+ vgm->exec_path = vec_new (char, i + 1);
+ clib_memcpy_fast (vgm->exec_path, buffer, i + 1);
+ for (j = i - 1; j > 0; j--)
+ if (buffer[j - 1] == '/')
+ break;
+ vgm->name = vec_new (char, i - j + 1);
+ clib_memcpy_fast (vgm->name, buffer + j, i - j + 1);
+ }
+ else
+ vgm->exec_path = vgm->name = argv[0];
+
+ vgm->argv = (u8 **) argv;
+
+ clib_time_init (&vm->clib_time);
+
+ /* Turn on the event logger at the first possible moment */
+ vgm->configured_elog_ring_size = 128 << 10;
+ elog_init (vlib_get_elog_main (), vgm->configured_elog_ring_size);
+ elog_enable_disable (vlib_get_elog_main (), 1);
- unformat_init_command_line (&input, (char **) vm->argv);
+ unformat_init_command_line (&input, (char **) vgm->argv);
if ((e = vlib_plugin_config (vm, &input)))
{
clib_error_report (e);
if (i)
return i;
- unformat_init_command_line (&input, (char **) vm->argv);
- if (vm->init_functions_called == 0)
- vm->init_functions_called = hash_create (0, /* value bytes */ 0);
+ unformat_init_command_line (&input, (char **) vgm->argv);
+ if (vgm->init_functions_called == 0)
+ vgm->init_functions_called = hash_create (0, /* value bytes */ 0);
e = vlib_call_all_config_functions (vm, &input, 1 /* early */ );
if (e != 0)
{
unformat_free (&input);
/* always load symbols, for signal handler and mheap memory get/put backtrace */
- clib_elf_main_init (vm->name);
+ clib_elf_main_init (vgm->exec_path);
vec_validate (vlib_thread_stacks, 0);
vlib_thread_stack_init (0);
__os_thread_index = 0;
vm->thread_index = 0;
+ vlib_process_start_switch_stack (vm, 0);
i = clib_calljmp (thread0, (uword) vm,
(void *) (vlib_thread_stacks[0] +
VLIB_THREAD_STACK_SIZE));
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