mirror of git://git.sysmocom.de/ofono
327 lines
6.0 KiB
C
327 lines
6.0 KiB
C
/*
|
|
*
|
|
* oFono - Open Source Telephony
|
|
*
|
|
* Copyright (C) 2008-2011 Intel Corporation. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#define _GNU_SOURCE
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <stdarg.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <syslog.h>
|
|
#include <execinfo.h>
|
|
#include <dlfcn.h>
|
|
|
|
#include "ofono.h"
|
|
|
|
static const char *program_exec;
|
|
static const char *program_path;
|
|
|
|
/**
|
|
* ofono_info:
|
|
* @format: format string
|
|
* @Varargs: list of arguments
|
|
*
|
|
* Output general information
|
|
*/
|
|
void ofono_info(const char *format, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, format);
|
|
|
|
vsyslog(LOG_INFO, format, ap);
|
|
|
|
va_end(ap);
|
|
}
|
|
|
|
/**
|
|
* ofono_warn:
|
|
* @format: format string
|
|
* @Varargs: list of arguments
|
|
*
|
|
* Output warning messages
|
|
*/
|
|
void ofono_warn(const char *format, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, format);
|
|
|
|
vsyslog(LOG_WARNING, format, ap);
|
|
|
|
va_end(ap);
|
|
}
|
|
|
|
/**
|
|
* ofono_error:
|
|
* @format: format string
|
|
* @varargs: list of arguments
|
|
*
|
|
* Output error messages
|
|
*/
|
|
void ofono_error(const char *format, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, format);
|
|
|
|
vsyslog(LOG_ERR, format, ap);
|
|
|
|
va_end(ap);
|
|
}
|
|
|
|
/**
|
|
* ofono_debug:
|
|
* @format: format string
|
|
* @varargs: list of arguments
|
|
*
|
|
* Output debug message
|
|
*
|
|
* The actual output of the debug message is controlled via a command line
|
|
* switch. If not enabled, these messages will be ignored.
|
|
*/
|
|
void ofono_debug(const char *format, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, format);
|
|
|
|
vsyslog(LOG_DEBUG, format, ap);
|
|
|
|
va_end(ap);
|
|
}
|
|
|
|
static void print_backtrace(unsigned int offset)
|
|
{
|
|
void *frames[99];
|
|
size_t n_ptrs;
|
|
unsigned int i;
|
|
int outfd[2], infd[2];
|
|
int pathlen;
|
|
pid_t pid;
|
|
|
|
if (program_exec == NULL)
|
|
return;
|
|
|
|
pathlen = strlen(program_path);
|
|
|
|
n_ptrs = backtrace(frames, G_N_ELEMENTS(frames));
|
|
if (n_ptrs < offset)
|
|
return;
|
|
|
|
if (pipe(outfd) < 0)
|
|
return;
|
|
|
|
if (pipe(infd) < 0) {
|
|
close(outfd[0]);
|
|
close(outfd[1]);
|
|
return;
|
|
}
|
|
|
|
pid = fork();
|
|
if (pid < 0) {
|
|
close(outfd[0]);
|
|
close(outfd[1]);
|
|
close(infd[0]);
|
|
close(infd[1]);
|
|
return;
|
|
}
|
|
|
|
if (pid == 0) {
|
|
close(outfd[1]);
|
|
close(infd[0]);
|
|
|
|
dup2(outfd[0], STDIN_FILENO);
|
|
dup2(infd[1], STDOUT_FILENO);
|
|
|
|
execlp("addr2line", "-C", "-f", "-e", program_exec, NULL);
|
|
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
close(outfd[0]);
|
|
close(infd[1]);
|
|
|
|
ofono_error("++++++++ backtrace ++++++++");
|
|
|
|
for (i = offset; i < n_ptrs - 1; i++) {
|
|
Dl_info info;
|
|
char addr[20], buf[PATH_MAX * 2];
|
|
int len, written;
|
|
char *ptr, *pos;
|
|
|
|
dladdr(frames[i], &info);
|
|
|
|
len = snprintf(addr, sizeof(addr), "%p\n", frames[i]);
|
|
if (len < 0)
|
|
break;
|
|
|
|
written = write(outfd[1], addr, len);
|
|
if (written < 0)
|
|
break;
|
|
|
|
len = read(infd[0], buf, sizeof(buf));
|
|
if (len < 0)
|
|
break;
|
|
|
|
buf[len] = '\0';
|
|
|
|
pos = strchr(buf, '\n');
|
|
*pos++ = '\0';
|
|
|
|
if (strcmp(buf, "??") == 0) {
|
|
ofono_error("#%-2u %p in %s", i - offset,
|
|
frames[i], info.dli_fname);
|
|
continue;
|
|
}
|
|
|
|
ptr = strchr(pos, '\n');
|
|
*ptr++ = '\0';
|
|
|
|
if (strncmp(pos, program_path, pathlen) == 0)
|
|
pos += pathlen + 1;
|
|
|
|
ofono_error("#%-2u %p in %s() at %s", i - offset,
|
|
frames[i], buf, pos);
|
|
}
|
|
|
|
ofono_error("+++++++++++++++++++++++++++");
|
|
|
|
kill(pid, SIGTERM);
|
|
|
|
close(outfd[1]);
|
|
close(infd[0]);
|
|
}
|
|
|
|
static void signal_handler(int signo)
|
|
{
|
|
ofono_error("Aborting (signal %d) [%s]", signo, program_exec);
|
|
|
|
print_backtrace(2);
|
|
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
static void signal_setup(sighandler_t handler)
|
|
{
|
|
struct sigaction sa;
|
|
sigset_t mask;
|
|
|
|
sigemptyset(&mask);
|
|
sa.sa_handler = handler;
|
|
sa.sa_mask = mask;
|
|
sa.sa_flags = 0;
|
|
sigaction(SIGBUS, &sa, NULL);
|
|
sigaction(SIGILL, &sa, NULL);
|
|
sigaction(SIGFPE, &sa, NULL);
|
|
sigaction(SIGSEGV, &sa, NULL);
|
|
sigaction(SIGABRT, &sa, NULL);
|
|
sigaction(SIGPIPE, &sa, NULL);
|
|
}
|
|
|
|
extern struct ofono_debug_desc __start___debug[];
|
|
extern struct ofono_debug_desc __stop___debug[];
|
|
|
|
static gchar **enabled = NULL;
|
|
|
|
static ofono_bool_t is_enabled(struct ofono_debug_desc *desc)
|
|
{
|
|
int i;
|
|
|
|
if (enabled == NULL)
|
|
return FALSE;
|
|
|
|
for (i = 0; enabled[i] != NULL; i++) {
|
|
if (desc->name != NULL && g_pattern_match_simple(enabled[i],
|
|
desc->name) == TRUE)
|
|
return TRUE;
|
|
if (desc->file != NULL && g_pattern_match_simple(enabled[i],
|
|
desc->file) == TRUE)
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
void __ofono_log_enable(struct ofono_debug_desc *start,
|
|
struct ofono_debug_desc *stop)
|
|
{
|
|
struct ofono_debug_desc *desc;
|
|
const char *name = NULL, *file = NULL;
|
|
|
|
if (start == NULL || stop == NULL)
|
|
return;
|
|
|
|
for (desc = start; desc < stop; desc++) {
|
|
if (file != NULL || name != NULL) {
|
|
if (g_strcmp0(desc->file, file) == 0) {
|
|
if (desc->name == NULL)
|
|
desc->name = name;
|
|
} else
|
|
file = NULL;
|
|
}
|
|
|
|
if (is_enabled(desc) == TRUE)
|
|
desc->flags |= OFONO_DEBUG_FLAG_PRINT;
|
|
}
|
|
}
|
|
|
|
int __ofono_log_init(const char *program, const char *debug,
|
|
ofono_bool_t detach)
|
|
{
|
|
static char path[PATH_MAX];
|
|
int option = LOG_NDELAY | LOG_PID;
|
|
|
|
program_exec = program;
|
|
program_path = getcwd(path, sizeof(path));
|
|
|
|
if (debug != NULL)
|
|
enabled = g_strsplit_set(debug, ":, ", 0);
|
|
|
|
__ofono_log_enable(__start___debug, __stop___debug);
|
|
|
|
if (detach == FALSE)
|
|
option |= LOG_PERROR;
|
|
|
|
signal_setup(signal_handler);
|
|
|
|
openlog(basename(program), option, LOG_DAEMON);
|
|
|
|
syslog(LOG_INFO, "oFono version %s", VERSION);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void __ofono_log_cleanup(void)
|
|
{
|
|
syslog(LOG_INFO, "Exit");
|
|
|
|
closelog();
|
|
|
|
signal_setup(SIG_DFL);
|
|
|
|
g_strfreev(enabled);
|
|
}
|