logging: add basic logging capabilities

src/main.c

@@ -442,6 +442,7 @@ main (int argc, char *argv[])
 	gboolean g_fatal_warnings = FALSE;
 	char *pidfile = NULL, *state_file = NULL, *dhcp = NULL;
 	char *config = NULL, *plugins = NULL, *conf_plugins = NULL;
+	char *log_level = NULL, *log_domains = NULL;
 	gboolean wifi_enabled = TRUE, net_enabled = TRUE, wwan_enabled = TRUE;
 	gboolean success;
 	NMPolicy *policy = NULL;
@@ -460,6 +461,10 @@ main (int argc, char *argv[])
 		{ "state-file", 0, 0, G_OPTION_ARG_FILENAME, &state_file, "State file location", "/path/to/state.file" },
 		{ "config", 0, 0, G_OPTION_ARG_FILENAME, &config, "Config file location", "/path/to/config.file" },
 		{ "plugins", 0, 0, G_OPTION_ARG_STRING, &plugins, "List of plugins separated by ,", "plugin1,plugin2" },
+		{ "log-level", 0, 0, G_OPTION_ARG_STRING, &log_level, "Log level: one of [ERR, WARN, INFO, DEBUG]", "INFO" },
+		{ "log-domain", 0, 0, G_OPTION_ARG_STRING, &log_domains,
+		        "Log domains separated by ,: any combination of [HW,RKILL,ETHER,WIFI,BT,MB,DHCP4,DHCP6,PPP,WIFI_SCAN,IP4,IP6,AUTOIP4,DNS,VPN,SHARING,SUPPLICANT,USER_SET,SYS_SET,SUSPEND,CORE]",
+		        "HW,RFKILL,WIFI" },
 		{NULL}
 	};
 
@@ -495,6 +500,14 @@ main (int argc, char *argv[])
 		exit (1);
 	}
 
+	/* Logging setup */
+	if (!nm_logging_setup (log_level, log_domains, &error)) {
+		fprintf (stderr,
+		         _("%s.  Please use --help to see a list of valid options.\n"),
+		         error->message);
+		exit (1);
+	}
+
 	pidfile = pidfile ? pidfile : g_strdup (NM_DEFAULT_PID_FILE);
 	state_file = state_file ? state_file : g_strdup (NM_DEFAULT_SYSTEM_STATE_FILE);
 
@@ -600,7 +613,7 @@ main (int argc, char *argv[])
 
 	setup_signals ();
 
-	nm_logging_setup (become_daemon);
+	nm_logging_start (become_daemon);
 
 	nm_info ("starting...");
 	success = FALSE;

src/nm-logging.c

@@ -15,7 +15,7 @@
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
- * Copyright (C) 2006 - 2008 Red Hat, Inc.
+ * Copyright (C) 2006 - 2010 Red Hat, Inc.
  * Copyright (C) 2006 - 2008 Novell, Inc.
  */
 
@@ -30,10 +30,150 @@
 #include <sys/wait.h>
 #include <sys/stat.h>
 #include <execinfo.h>
+#include <strings.h>
+#include <string.h>
+
+#include <glib/gi18n.h>
 
 #include "nm-logging.h"
 #include "nm-utils.h"
 
+static guint32 log_level = LOGL_ERR;
+static guint32 log_domains = LOGD_CORE & LOGD_HW;
+
+typedef struct {
+	guint32 num;
+	const char *name;
+} LogDesc;
+
+static const LogDesc level_descs[] = {
+	{ LOGL_ERR, "ERR" },
+	{ LOGL_WARN, "WARN" },
+	{ LOGL_INFO, "INFO" },
+	{ LOGL_DEBUG, "DEBUG" },
+	{ 0, NULL }
+};
+
+static const LogDesc domain_descs[] = {
+	{ LOGD_HW,        "HW" },
+	{ LOGD_RFKILL,    "RFKILL" },
+	{ LOGD_ETHER,     "ETHER" },
+	{ LOGD_WIFI,      "WIFI" },
+	{ LOGD_BT,        "BT" },
+	{ LOGD_MB,        "MB" },
+	{ LOGD_DHCP4,     "DHCP4" },
+	{ LOGD_DHCP6,     "DHCP6" },
+	{ LOGD_PPP,       "PPP" },
+	{ LOGD_WIFI_SCAN, "WIFI_SCAN" },
+	{ LOGD_IP4,       "IP4" },
+	{ LOGD_IP6,       "IP6" },
+	{ LOGD_AUTOIP4,   "AUTOIP4" },
+	{ LOGD_DNS,       "DNS" },
+	{ LOGD_VPN,       "VPN" },
+	{ LOGD_SHARING,   "SHARING" },
+	{ LOGD_SUPPLICANT,"SUPPLICANT" },
+	{ LOGD_USER_SET,  "USER_SET" },
+	{ LOGD_SYS_SET,   "SYS_SET" },
+	{ LOGD_SUSPEND,   "SUSPEND" },
+	{ LOGD_CORE,      "CORE" },
+	{ 0, NULL }
+};
+
+
+/************************************************************************/
+
+gboolean
+nm_logging_setup (const char *level, const char *domains, GError **error)
+{
+	char **tmp, **iter;
+	guint32 new_level = 0;
+	guint32 new_domains = 0;
+
+	/* levels */
+	if (level && strlen (level)) {
+		tmp = g_strsplit (level, ",", 0);
+		for (iter = tmp; iter && *iter; iter++) {
+			const LogDesc *diter;
+			gboolean found = FALSE;
+
+			for (diter = &level_descs[0]; diter->name; diter++) {
+				if (!strcasecmp (diter->name, *iter)) {
+					new_level &= diter->num;
+					found = TRUE;
+					break;
+				}
+			}
+
+			if (!found) {
+				g_set_error (error, 0, 0, _("Unknown log level '%s'"), *iter);
+				return FALSE;
+			}
+		}
+		g_strfreev (tmp);
+		log_level = new_level;
+	}
+
+	/* domains */
+	if (domains && strlen (domains)) {
+		tmp = g_strsplit (domains, ",", 0);
+		for (iter = tmp; iter && *iter; iter++) {
+			const LogDesc *diter;
+			gboolean found = FALSE;
+
+			for (diter = &domain_descs[0]; diter->name; diter++) {
+				if (!strcasecmp (diter->name, *iter)) {
+					new_domains &= diter->num;
+					found = TRUE;
+					break;
+				}
+			}
+
+			if (!found) {
+				g_set_error (error, 0, 0, _("Unknown log domain '%s'"), *iter);
+				return FALSE;
+			}
+		}
+		g_strfreev (tmp);
+		log_domains = new_domains;
+	}
+
+	return TRUE;
+}
+
+void _nm_log (const char *loc,
+              const char *func,
+              guint32 domain,
+              guint32 level,
+              const char *fmt,
+              ...)
+{
+	va_list args;
+	char *msg;
+	GTimeVal tv;
+
+	if (!(log_level & level) || !(log_domains & domain))
+		return;
+
+	va_start (args, fmt);
+	msg = g_strdup_vprintf (fmt, args);
+	va_end (args);
+
+	if (log_level & LOGL_DEBUG) {
+		g_get_current_time (&tv);
+		syslog (LOG_DEBUG, "<debug> [%zu.%zu] [%s] %s(): %s\n", tv.tv_sec, tv.tv_usec, loc, func, msg);
+	} else if (log_level & LOGL_INFO)
+		syslog (LOG_INFO, "<info> [%s] %s(): %s\n", loc, func, msg);
+	else if (log_level & LOGL_WARN)
+		syslog (LOG_WARNING, "<warn> [%s] %s(): %s\n", loc, func, msg);
+	else if (log_level & LOGL_ERR) {
+		g_get_current_time (&tv);
+		syslog (LOG_ERR, "<error> [%zu.%zu] [%s] %s(): %s\n", tv.tv_sec, tv.tv_usec, loc, func, msg);
+	}
+	g_free (msg);
+}
+
+/************************************************************************/
+
 static void
 fallback_get_backtrace (void)
 {
@@ -115,35 +255,29 @@ nm_logging_backtrace (void)
 
 
 static void
-nm_log_handler (const gchar *		log_domain,
+nm_log_handler (const gchar *log_domain,
-			  GLogLevelFlags	log_level,
+                GLogLevelFlags level,
-			  const gchar *	message,
+                const gchar *message,
                 gpointer ignored)
 {
 	int syslog_priority;	
 
-	switch (log_level)
+	switch (level) {
-	{
 	case G_LOG_LEVEL_ERROR:
 		syslog_priority = LOG_CRIT;
 		break;
-
 	case G_LOG_LEVEL_CRITICAL:
 		syslog_priority = LOG_ERR;
 		break;
-
 	case G_LOG_LEVEL_WARNING:
 		syslog_priority = LOG_WARNING;
 		break;
-
 	case G_LOG_LEVEL_MESSAGE:
 		syslog_priority = LOG_NOTICE;
 		break;
-
 	case G_LOG_LEVEL_DEBUG:
 		syslog_priority = LOG_DEBUG;
 		break;
-
 	case G_LOG_LEVEL_INFO:
 	default:
 		syslog_priority = LOG_INFO;
@@ -153,9 +287,8 @@ nm_log_handler (const gchar *		log_domain,
 	syslog (syslog_priority, "%s", message);
 }
 
-
 void
-nm_logging_setup (gboolean become_daemon)
+nm_logging_start (gboolean become_daemon)
 {
 	if (become_daemon)
 		openlog (G_LOG_DOMAIN, 0, LOG_DAEMON);

src/nm-logging.h

@@ -15,7 +15,7 @@
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
- * Copyright (C) 2006 - 2008 Red Hat, Inc.
+ * Copyright (C) 2006 - 2010 Red Hat, Inc.
  * Copyright (C) 2006 - 2008 Novell, Inc.
  */
 
@@ -24,7 +24,50 @@
 
 #include <glib.h>
 
-void nm_logging_setup     (gboolean become_daemon);
+/* Log domains */
+enum {
+	LOGD_NONE       = 0x00000000,
+	LOGD_HW         = 0x00000001,
+	LOGD_RFKILL     = 0x00000002,
+	LOGD_ETHER      = 0x00000004,
+	LOGD_WIFI       = 0x00000008,
+	LOGD_BT         = 0x00000010,
+	LOGD_MB         = 0x00000020, /* mobile broadband */
+	LOGD_DHCP4      = 0x00000040,
+	LOGD_DHCP6      = 0x00000080,
+	LOGD_PPP        = 0x00000100,
+	LOGD_WIFI_SCAN  = 0x00000200,
+	LOGD_IP4        = 0x00000400,
+	LOGD_IP6        = 0x00000800,
+	LOGD_AUTOIP4    = 0x00001000,
+	LOGD_DNS        = 0x00002000,
+	LOGD_VPN        = 0x00004000,
+	LOGD_SHARING    = 0x00008000,
+	LOGD_SUPPLICANT = 0x00010000,
+	LOGD_USER_SET   = 0x00020000,
+	LOGD_SYS_SET    = 0x00040000,
+	LOGD_SUSPEND    = 0x00080000,
+	LOGD_CORE       = 0x00100000, /* Core daemon and policy stuff */
+};
+
+/* Log levels */
+enum {
+	LOGL_ERR   = 0x00000000,
+	LOGL_WARN  = 0x00000001,
+	LOGL_INFO  = 0x00000002,
+	LOGL_DEBUG = 0x00000004
+};
+
+#define nm_log(domain, level, fmt, args...) \
+	{ _nm_log (G_STRFUNC, G_STRLOC, domain, level, fmt, ##args); }
+
+void _nm_log (const char *func, const char *loc,
+              guint32 domain, guint32 level,
+              const char *fmt, ...);
+
+
+gboolean nm_logging_setup     (const char *level, const char *domains, GError **error);
+void     nm_logging_start     (gboolean become_daemon);
 void     nm_logging_backtrace (void);
 void     nm_logging_shutdown  (void);