Updated connman to version 1.35
[platform/upstream/connman.git] / src / log.c
old mode 100644 (file)
new mode 100755 (executable)
index 5298652..fa8ac31
--- a/src/log.c
+++ b/src/log.c
@@ -2,7 +2,7 @@
  *
  *  Connection Manager
  *
- *  Copyright (C) 2007-2009  Intel Corporation. All rights reserved.
+ *  Copyright (C) 2007-2013  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
 #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 "connman.h"
 
+static const char *program_exec;
+static const char *program_path;
+
+#if defined TIZEN_EXT
+#include <sys/stat.h>
+#include <sys/time.h>
+
+#define LOG_FILE_PATH "/opt/usr/data/network/connman.log"
+#define MAX_LOG_SIZE   1 * 1024 * 1024
+#define MAX_LOG_COUNT  1
+
+#define openlog __connman_log_open
+#define closelog __connman_log_close
+#define vsyslog __connman_log
+#define syslog __connman_log_s
+
+static FILE *log_file = NULL;
+
+void __connman_log_open(const char *ident, int option, int facility)
+{
+       if (!log_file)
+               log_file = (FILE *)fopen(LOG_FILE_PATH, "a+");
+}
+
+void __connman_log_close(void)
+{
+       fclose(log_file);
+       log_file = NULL;
+}
+
+static void __connman_log_update_file_revision(int rev)
+{
+       int next_log_rev = 0;
+       char *log_file = NULL;
+       char *next_log_file = NULL;
+
+       next_log_rev = rev + 1;
+
+       log_file = g_strdup_printf("%s.%d", LOG_FILE_PATH, rev);
+       next_log_file = g_strdup_printf("%s.%d", LOG_FILE_PATH, next_log_rev);
+
+       if (next_log_rev >= MAX_LOG_COUNT)
+               remove(next_log_file);
+
+       if (access(next_log_file, F_OK) == 0)
+               __connman_log_update_file_revision(next_log_rev);
+
+       if (rename(log_file, next_log_file) != 0)
+               remove(log_file);
+
+       g_free(log_file);
+       g_free(next_log_file);
+}
+
+static void __connman_log_make_backup(void)
+{
+       const int rev = 0;
+       char *backup = NULL;
+
+       backup = g_strdup_printf("%s.%d", LOG_FILE_PATH, rev);
+
+       if (access(backup, F_OK) == 0)
+               __connman_log_update_file_revision(rev);
+
+       if (rename(LOG_FILE_PATH, backup) != 0)
+               remove(LOG_FILE_PATH);
+
+       g_free(backup);
+}
+
+static void __connman_log_get_local_time(char *strtime, const int size)
+{
+       struct timeval tv;
+       struct tm *local_ptm;
+       char buf[32];
+
+       gettimeofday(&tv, NULL);
+       local_ptm = localtime(&tv.tv_sec);
+
+       strftime(buf, sizeof(buf), "%m/%d %H:%M:%S", local_ptm);
+       snprintf(strtime, size, "%s.%03ld", buf, tv.tv_usec / 1000);
+}
+
+void __connman_log(const int log_priority, const char *format, va_list ap)
+{
+       int log_size = 0;
+       struct stat buf;
+       char str[256];
+       char strtime[40];
+
+       if (!log_file)
+               log_file = (FILE *)fopen(LOG_FILE_PATH, "a+");
+
+       if (!log_file)
+               return;
+
+       fstat(fileno(log_file), &buf);
+       log_size = buf.st_size;
+
+       if (log_size >= MAX_LOG_SIZE) {
+               fclose(log_file);
+               log_file = NULL;
+
+               __connman_log_make_backup();
+
+               log_file = (FILE *)fopen(LOG_FILE_PATH, "a+");
+
+               if (!log_file)
+                       return;
+       }
+
+       __connman_log_get_local_time(strtime, sizeof(strtime));
+
+       if (vsnprintf(str, sizeof(str), format, ap) > 0)
+               fprintf(log_file, "%s %s\n", strtime, str);
+}
+
+void __connman_log_s(int log_priority, const char *format, ...)
+{
+       va_list ap;
+
+       va_start(ap, format);
+
+       vsyslog(LOG_DEBUG, format, ap);
+
+       va_end(ap);
+}
+#endif
+
 /**
  * connman_info:
  * @format: format string
@@ -80,6 +216,7 @@ void connman_error(const char *format, ...)
        vsyslog(LOG_ERR, format, ap);
 
        va_end(ap);
+       fflush(log_file);
 }
 
 /**
@@ -98,99 +235,226 @@ void connman_debug(const char *format, ...)
        vsyslog(LOG_DEBUG, format, ap);
 
        va_end(ap);
+       fflush(log_file);
 }
 
-extern struct connman_debug_desc __start___debug[];
-extern struct connman_debug_desc __stop___debug[];
-
-void __connman_debug_list_available(DBusMessageIter *iter, void *user_data)
+static void print_backtrace(unsigned int offset)
 {
-       struct connman_debug_desc *desc;
+       void *frames[99];
+       size_t n_ptrs;
+       unsigned int i;
+       int outfd[2], infd[2];
+       int pathlen;
+       pid_t pid;
+
+       if (!program_exec)
+               return;
+
+       pathlen = strlen(program_path);
+
+       n_ptrs = backtrace(frames, G_N_ELEMENTS(frames));
+       if (n_ptrs < offset)
+               return;
+
+       if (pipe(outfd) < 0)
+               return;
 
-       for (desc = __start___debug; desc < __stop___debug; desc++) {
-               if ((desc->flags & CONNMAN_DEBUG_FLAG_ALIAS) &&
-                                               desc->name != NULL)
-                       dbus_message_iter_append_basic(iter,
-                                       DBUS_TYPE_STRING, &desc->name);
+       if (pipe(infd) < 0) {
+               close(outfd[0]);
+               close(outfd[1]);
+               return;
        }
-}
 
-static gchar **enabled = NULL;
+       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]);
+
+       connman_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) - 1);
+               if (len < 0)
+                       break;
+
+               buf[len] = '\0';
+
+               pos = strchr(buf, '\n');
+               *pos++ = '\0';
+
+               if (strcmp(buf, "??") == 0) {
+                       connman_error("#%-2u %p in %s", i - offset,
+                                               frames[i], info.dli_fname);
+                       continue;
+               }
+
+               ptr = strchr(pos, '\n');
+               *ptr++ = '\0';
 
-void __connman_debug_list_enabled(DBusMessageIter *iter, void *user_data)
+               if (strncmp(pos, program_path, pathlen) == 0)
+                       pos += pathlen + 1;
+
+               connman_error("#%-2u %p in %s() at %s", i - offset,
+                                               frames[i], buf, pos);
+       }
+
+       connman_error("+++++++++++++++++++++++++++");
+
+       kill(pid, SIGTERM);
+
+       close(outfd[1]);
+       close(infd[0]);
+}
+
+static void signal_handler(int signo)
 {
-       int i;
+       connman_error("Aborting (signal %d) [%s]", signo, program_exec);
 
-       if (enabled == NULL)
-               return;
+       print_backtrace(2);
+
+       exit(EXIT_FAILURE);
+}
 
-       for (i = 0; enabled[i] != NULL; i++)
-               dbus_message_iter_append_basic(iter,
-                                       DBUS_TYPE_STRING, &enabled[i]);
+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);
 }
 
-static connman_bool_t is_enabled(struct connman_debug_desc *desc)
+extern struct connman_debug_desc __start___debug[];
+extern struct connman_debug_desc __stop___debug[];
+
+static gchar **enabled = NULL;
+
+static bool is_enabled(struct connman_debug_desc *desc)
 {
        int i;
 
-       if (enabled == NULL)
-               return FALSE;
+       if (!enabled)
+               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;
+       for (i = 0; enabled[i]; i++) {
+               if (desc->name && g_pattern_match_simple(enabled[i],
+                                                       desc->name))
+                       return true;
+               if (desc->file && g_pattern_match_simple(enabled[i],
+                                                       desc->file))
+                       return true;
        }
 
-       return FALSE;
+       return false;
 }
 
-int __connman_log_init(const char *debug, connman_bool_t detach)
+void __connman_log_enable(struct connman_debug_desc *start,
+                                       struct connman_debug_desc *stop)
 {
-       int option = LOG_NDELAY | LOG_PID;
        struct connman_debug_desc *desc;
        const char *name = NULL, *file = NULL;
 
-       if (debug != NULL)
-               enabled = g_strsplit_set(debug, ":, ", 0);
+       if (!start || !stop)
+               return;
 
-       for (desc = __start___debug; desc < __stop___debug; desc++) {
+       for (desc = start; desc < stop; desc++) {
                if (desc->flags & CONNMAN_DEBUG_FLAG_ALIAS) {
                        file = desc->file;
                        name = desc->name;
                        continue;
                }
 
-               if (file != NULL || name != NULL) {
+               if (file || name) {
                        if (g_strcmp0(desc->file, file) == 0) {
-                               if (desc->name == NULL)
+                               if (!desc->name)
                                        desc->name = name;
                        } else
                                file = NULL;
                }
 
-               if (is_enabled(desc) == TRUE)
+               if (is_enabled(desc))
                        desc->flags |= CONNMAN_DEBUG_FLAG_PRINT;
        }
+}
 
-       if (detach == FALSE)
+int __connman_log_init(const char *program, const char *debug,
+               gboolean detach, gboolean backtrace,
+               const char *program_name, const char *program_version)
+{
+       static char path[PATH_MAX];
+       int option = LOG_NDELAY | LOG_PID;
+
+       program_exec = program;
+       program_path = getcwd(path, sizeof(path));
+
+       if (debug)
+               enabled = g_strsplit_set(debug, ":, ", 0);
+
+       __connman_log_enable(__start___debug, __stop___debug);
+
+       if (!detach)
                option |= LOG_PERROR;
 
-       openlog("connmand", option, LOG_DAEMON);
+       if (backtrace)
+               signal_setup(signal_handler);
+
+       openlog(basename(program), option, LOG_DAEMON);
 
-       syslog(LOG_INFO, "Connection Manager version %s", VERSION);
+       syslog(LOG_INFO, "%s version %s", program_name, program_version);
 
        return 0;
 }
 
-void __connman_log_cleanup(void)
+void __connman_log_cleanup(gboolean backtrace)
 {
        syslog(LOG_INFO, "Exit");
 
        closelog();
 
+       if (backtrace)
+               signal_setup(SIG_DFL);
+
        g_strfreev(enabled);
 }