Introduce out_trigger module

out_trigger runs a trigger when a probe exceeds above or drops below a
given threshold

.travis.yml

@@ -1,10 +1,40 @@
 language: c
+
+os:
+  - linux
+  - osx
+
+env:
+  global:
+    - secure: "C87Pgf5AVDoyQfm9MIv81g"
+
 compiler:
   - gcc
   - clang
-before_install:
+
-  - sudo apt-get install libconfuse-dev
+# container-based builds
-  - sudo apt-get install libnl-3-dev libnl-route-3-dev
+sudo: false
-  - sudo apt-get install libncurses-dev
+addons:
-# Change this to your needs
+  apt:
-script: ./autogen.sh && ./configure && make
+    packages:
+    # packages list: https://github.com/travis-ci/apt-package-whitelist/blob/master/ubuntu-precise
+    - libconfuse-dev
+    - libncurses5-dev
+    - libnl-3-dev
+    - libnl-route-3-dev
+  coverity_scan:
+    project:
+      name: "tgraf/bmon"
+      description: "bandwidth monitor"
+    notification_email: tgraf@suug.ch
+    build_command_prepend: "./autogen.sh && ./configure"
+    build_command: "make -j2"
+    branch_pattern: coverity_scan
+
+
+install:
+  - if [ "$TRAVIS_BRANCH" = "coverity_scan" ] && ! [ "$TRAVIS_OS_NAME" = "linux" -a "$CC" = "gcc" ]; then exit ; fi
+  - if [ "$TRAVIS_OS_NAME" = "osx" ]; then brew update > /dev/null && brew install confuse ; fi
+
+script:
+  - ./.travis/run.sh

.travis/run.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+FLAGS="-Werror"
+
+if [ $CC = "clang" ]; then
+	FLAGS="$FLAGS -Wno-error=unused-command-line-argument"
+fi
+
+./autogen.sh && ./configure && make CFLAGS="$FLAGS" && make distcheck

Makefile.am

@@ -4,4 +4,4 @@ ACLOCAL_AMFLAGS = -I m4
 
 SUBDIRS = src man include examples
 
-EXTRA_DIST = ChangeLog LICENSE.BSD LICENSE.MIT NEWS README.adoc
+EXTRA_DIST = ChangeLog LICENSE.BSD LICENSE.MIT NEWS README.md

NEWS

@@ -1,12 +1,46 @@
+HEAD
+
+v4.0 - Dec 13, 2016
+ * Use monotonic clock instead of realtime clock
+ * Pick default selected interface based on policy
+ * Collect RX NoHandler statistics if available (Linux)
+ * CentOS installation instructions
+ * Proper stdout flush in ASCII mode
+ * Bugfixes
+
+v3.9 - Jul 19, 2016
+ * Color support
+ * Add ability to reset statistics from curses UI
+ * NetBSD compile fix
+ * Option to enable info display by default
+ * Additional IPv6 statistics
+ * Various fixes
+
+v3.8 - July 25, 2015
+ * Don't disable Netlink if TC stats are unavailable
+
+v3.7 - November 22, 2014
+ * Bugfixes
+ * Documentation updates
+ * Provide minimal interface information on BSD
+ 
+v3.6 - November 22, 2014
+ * Build fix for uclinux
+ * Fix LICENSE links
+
+v3.5 - August 30, 2014
+ * Fixes for all defects identified by coverity
+ * Fix accuracy issue on total rate calculation
+ * Travis-CI support
+ * Various other small bugfixes
+
 v3.4 - August 24, 2014
-----------------------
  * Bugfixes
    * blank screen with config file
    * quick-help toggle with '?' in curses
  * Better bmon.conf example
 
 v3.3 - July 6, 2014
--------------------
  * MacOS X port
  * Only initialize curses module if actually used
  * Assorted bug and spelling fixes

README.md

@@ -8,20 +8,74 @@ statistics and prepare them visually in a human friendly way. It
 features various output methods including an interactive curses user
 interface and a programmable text output for scripting.
 
-## Changes
+## Download
 
-### New in 3.4
+ * [Latest Release](https://github.com/tgraf/bmon/releases/latest)
+ * [Older Releases](https://github.com/tgraf/bmon/releases)
+
+## Debian/Ubuntu Installation
+
+```
+git clone https://github.com/tgraf/bmon.git
+cd bmon
+apt-get install build-essential make libconfuse-dev libnl-3-dev libnl-route-3-dev libncurses-dev pkg-config dh-autoreconf
+./autogen.sh
+./configure
+make
+make install
+bmon
+```
+## CentOS (6) Installation
+
+```
+git clone https://github.com/tgraf/bmon.git
+cd bmon
+yum install make libconfuse-devel libnl3-devel libnl-route3-devel ncurses-devel
+./autogen.sh
+./configure
+make
+make install
+bmon
+```
+
+## OSX Installation
+
+### Brew
+```
+brew install bmon
+```
+
+### Compile yourself
+Install libconfuse
+```
+wget https://github.com/martinh/libconfuse/releases/download/v2.8/confuse-2.8.zip
+unzip confuse-2.8.zip && cd confuse-2.8
+PATH=/usr/local/opt/gettext/bin:$PATH ./configure
+make
+make install
+```
+
+Install bmon
+```
+git clone https://github.com/tgraf/bmon.git
+cd bmon
+./autogen.sh
+./configure
+make
+make install
+bmon
+```
+
+-------------
+## New in 4.0
+ * Use monotonic clock instead of realtime clock
+ * Pick default selected interface based on policy
+ * Collect RX NoHandler statistics if available (Linux)
+ * CentOS installation instructions
+ * Proper stdout flush in ASCII mode
  * Bugfixes
-   * blank screen with config file
-   * quick-help toggle with '?' in curses
- * Better bmon.conf example
-
-## New in 3.3
- * MacOS X port
- * Only initialize curses module if actually used
- * Assorted bug and spelling fixes
- * Various build fixes
 
+-------------
 ### Usage
 
 To run bmon in the default curses mode:
@@ -35,14 +89,18 @@ provided via:
 
 ## Screenshots
 
-![Screenshot 1](https://github.com/tgraf/bmon/raw/gh-pages/images/shot1.png)
+![Screenshot 1](https://github.com/tgraf/bmon/raw/gh-pages/images/shot3.png)
-![Screenshot 2](https://github.com/tgraf/bmon/raw/gh-pages/images/shot2.png)
+![Screenshot 2](https://github.com/tgraf/bmon/raw/gh-pages/images/shot1.png)
+![Screenshot 3](https://github.com/tgraf/bmon/raw/gh-pages/images/shot2.png)
 
 ## Copyright
 
-> *Copyright (c) 2001-2014 Thomas Graf <tgraf@suug.ch>
+Various authors, see git commit log.
-> Copyright (c) 2013 Red Hat, Inc.*
 
-Please see the [LICENSE](https://github.com/tgraf/bmon/blob/master/LICENSE)
+> *Copyright (c) 2001-2016 Thomas Graf <tgraf@suug.ch>*
-file for additional details.
+> *Copyright (c) 2013 Red Hat, Inc.*
+
+Please see the [LICENSE.BSD](https://github.com/tgraf/bmon/blob/master/LICENSE.BSD)
+and [LICENSE.MIT](https://github.com/tgraf/bmon/blob/master/LICENSE.MIT) files for
+additional details.
 

configure.ac

@@ -1,7 +1,7 @@
 #
 # configure.in      Configure Script
 #
-# Copyright (c) 2001-2013 Thomas Graf <tgraf@suug.ch>
+# Copyright (c) 2001-2016 Thomas Graf <tgraf@suug.ch>
 #
 # Permission is hereby granted, free of charge, to any person obtaining a
 # copy of this software and associated documentation files (the "Software"),
@@ -21,7 +21,7 @@
 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 # DEALINGS IN THE SOFTWARE.
 
-AC_INIT(bmon, 3.4, [], [], [http://www.infradead.org/~tgr/bmon/])
+AC_INIT(bmon, 4.0, [], [], [https://github.com/tgraf/bmon])
 AC_CONFIG_HEADERS(include/bmon/defs.h)
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
@@ -58,10 +58,18 @@ AC_CHECK_HEADERS(sys/param.h sys/socket.h)
 
 AC_CHECK_TYPES(suseconds_t)
 
-AC_CHECK_FUNCS(atexit gettimeofday memset pow socket strcasecmp)
+AC_CHECK_FUNCS(atexit clock_gettime memset pow socket strcasecmp)
 AC_CHECK_FUNCS(strchr strdup strerror strncasecmp strstr strtol)
 AC_CHECK_FUNCS(uname getdate)
 
+AC_PATH_PROG([PKG_CONFIG], [pkg-config], [no])
+AS_IF([test "x$PKG_CONFIG" = "xno"],[
+   AC_MSG_ERROR([
+      *** The pkg-config script could not be found. Make sure it is
+      *** in your path, or set the PKG_CONFIG environment variable
+      *** to the full path to pkg-config.])
+   ])
+
 AX_WITH_CURSES
 if test "x$ax_cv_curses" != xyes || test "x$ax_cv_curses_color" != xyes; then
         AC_MSG_ERROR([requires an X/Open-compatible Curses library with color])
@@ -70,7 +78,7 @@ fi
 PKG_CHECK_MODULES([CONFUSE], [libconfuse], [], AC_MSG_ERROR([requires libconfuse]))
 
 case ${target_os} in
-    linux*)
+    linux*|uclinux*)
         PKG_CHECK_MODULES([LIBNL], [libnl-3.0], [], AC_MSG_ERROR([requires libnl3-dev]))
         PKG_CHECK_MODULES([LIBNL_ROUTE], [libnl-route-3.0], [], AC_MSG_ERROR([requires libnl3-route]))
     ;;
@@ -78,6 +86,9 @@ esac
 
 AC_CHECK_LIB(m, pow, [], AC_MSG_ERROR([requires libm]))
 
+# Don't fail if not found (for instance, OS X does not have clock_gettime)
+AC_CHECK_LIB(rt, clock_gettime, [], [])
+
 BMON_LIB=""
 
 #####################################################################
@@ -164,7 +175,7 @@ case ${target_os} in
 	AC_DEFINE_UNQUOTED(SYS_SUNOS, "1", [operating system])
     ;;
 
-    *bsd*)
+    *bsd*|dragonfly*)
 	AC_DEFINE_UNQUOTED(SYS_BSD, "1", [operating system])
     ;;
 

examples/bmon.conf

@@ -11,10 +11,10 @@
 
 /* 
  * element eth0 {
- * 	description	= { "My description" }
+ * 	description	= "My description"
- * 	rxmax		= { 10000 }
+ * 	rxmax		= 10000
- * 	txmax		= { 10000 }
+ * 	txmax		= 10000
- * 	max		= { 12500000 }
+ * 	max		= 12500000
  * }
  */
 
@@ -86,3 +86,27 @@ history day {
 	interval	= 86400.
 	size		= 60
 }
+
+layout colors {
+    color default {
+       color_pair  = {"white", "black"}
+    }
+    color statusbar {
+        color_pair = {"blue", "white", "reverse"}
+    }
+    color header {
+        color_pair = {"yellow", "black"}
+    }
+    color list {
+        color_pair = {"white", "black"}
+    }
+    color selected {
+        color_pair = {"white", "black", "reverse"}
+    }
+    color RX_graph {
+        color_pair = {"green", "black"}
+    }
+    color TX_graph {
+        color_pair = {"red", "black"}
+    }
+}

include/Makefile.am

@@ -16,4 +16,5 @@ noinst_HEADERS = \
 	bmon/module.h \
 	bmon/output.h \
 	bmon/unit.h \
+	bmon/layout.h \
 	bmon/utils.h

include/bmon/attr.h

@@ -42,6 +42,9 @@ struct rate
 	/* Value of r_current at last read */
 	uint64_t		r_prev;
 
+	/* Reset value to substract to emulate statistics reset */
+	uint64_t		r_reset;
+
 	/* Rate per second calculated every `rate_interval' */
 	float			r_rate;
 
@@ -49,6 +52,8 @@ struct rate
 	timestamp_t		r_last_calc;
 };
 
+extern uint64_t			rate_get_total(struct rate *);
+
 enum {
 	ATTR_TYPE_UNSPEC,
 	ATTR_TYPE_COUNTER,
@@ -134,5 +139,6 @@ extern struct attr *		attr_select_prev(void);
 extern struct attr *		attr_current(void);
 
 extern void			attr_start_collecting_history(struct attr *);
+extern void			attr_reset_counter(struct attr *a);
 
 #endif

include/bmon/bmon.h

@@ -60,9 +60,11 @@ enum {
 #if defined __GNUC__
 #define __init __attribute__ ((constructor))
 #define __exit __attribute__ ((destructor))
+#define __unused__ __attribute__ ((unused))
 #else
 #define __init
 #define __exit
+#define __unused__
 #endif
 
 #ifdef DEBUG

include/bmon/conf.h

@@ -74,6 +74,8 @@ enum {
 	LAYOUT_HEADER,
 	LAYOUT_LIST,
 	LAYOUT_SELECTED,
+    LAYOUT_RX_GRAPH,
+    LAYOUT_TX_GRAPH,
 	__LAYOUT_MAX
 };
 

include/bmon/config.h

@@ -48,7 +48,7 @@
 #include <dirent.h>
 #ifdef SYS_BSD
 # include <float.h>
-#else
+#elif !defined(__ANDROID__)
 # include <values.h>
 #endif
 

include/bmon/defs.h.in

@@ -9,6 +9,9 @@
 /* Define to 1 if you have the `atexit' function. */
 #undef HAVE_ATEXIT
 
+/* Define to 1 if you have the `clock_gettime' function. */
+#undef HAVE_CLOCK_GETTIME
+
 /* have curses */
 #undef HAVE_CURSES
 
@@ -39,15 +42,15 @@
 /* Define to 1 if you have the <getopt.h> header file. */
 #undef HAVE_GETOPT_H
 
-/* Define to 1 if you have the `gettimeofday' function. */
-#undef HAVE_GETTIMEOFDAY
-
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 
 /* Define to 1 if you have the `m' library (-lm). */
 #undef HAVE_LIBM
 
+/* Define to 1 if you have the `rt' library (-lrt). */
+#undef HAVE_LIBRT
+
 /* Define to 1 if you have the <memory.h> header file. */
 #undef HAVE_MEMORY_H
 

include/bmon/layout.h

@@ -0,0 +1,130 @@
+
+#ifndef __BMON_LAYOUT_H_
+#define __BMON_LAYOUT_H_
+
+#include <bmon/bmon.h>
+#include <bmon/conf.h>
+#include <bmon/unit.h>
+#include <bmon/utils.h>
+
+
+static int parse_color(const char* color)
+{
+    int color_code = -1;
+
+    if ((strcasestr(color, "red") != NULL))
+        color_code = COLOR_RED;
+    else if ((strcasestr(color, "green") != NULL))
+        color_code = COLOR_GREEN;
+    else if ((strcasestr(color, "white") != NULL))
+        color_code = COLOR_WHITE;
+    else if ((strcasestr(color, "black") != NULL))
+        color_code = COLOR_BLACK;
+    else if ((strcasestr(color, "blue") != NULL))
+        color_code = COLOR_BLUE;
+    else if ((strcasestr(color, "yellow") != NULL))
+        color_code = COLOR_YELLOW;
+    else if ((strcasestr(color, "magenta") != NULL))
+        color_code = COLOR_MAGENTA;
+    else if ((strcasestr(color, "cyan") != NULL))
+        color_code = COLOR_CYAN;
+    else if ((atoi(color) >= 0))
+        color_code = atoi(color);
+
+    return color_code;
+}
+
+/*
+    A_NORMAL        Normal display (no highlight)
+    A_STANDOUT      Best highlighting mode of the terminal.
+    A_UNDERLINE     Underlining
+    A_REVERSE       Reverse video
+    A_BLINK         Blinking
+    A_DIM           Half bright
+    A_BOLD          Extra bright or bold
+    A_PROTECT       Protected mode
+    A_INVIS         Invisible or blank mode
+    A_ALTCHARSET    Alternate character set
+    A_CHARTEXT      Bit-mask to extract a character
+*/
+
+static int parse_attribute(const char* attr)
+{
+    /* no attribute is valid, so we have nothing to do */
+    if (attr == NULL)
+        return 0;
+
+    if ((strcasestr(attr, "normal") != NULL))
+        return A_NORMAL;
+    else if ((strcasestr(attr, "standout") != NULL))
+        return A_STANDOUT;
+    else if ((strcasestr(attr, "underline") != NULL))
+        return A_UNDERLINE;
+    else if ((strcasestr(attr, "reverse") != NULL))
+        return A_REVERSE;
+    else if ((strcasestr(attr, "blink") != NULL))
+        return A_BLINK;
+    else if ((strcasestr(attr, "dim") != NULL))
+        return A_DIM;
+    else if ((strcasestr(attr, "bold") != NULL))
+        return A_BOLD;
+    else if ((strcasestr(attr, "protect") != NULL))
+        return A_PROTECT;
+    else if ((strcasestr(attr, "invis") != NULL))
+        return A_INVIS;
+    else if ((strcasestr(attr, "altcharset") != NULL))
+        return A_ALTCHARSET;
+    else if ((strcasestr(attr, "chartext") != NULL))
+        return A_CHARTEXT;
+
+    return -1;
+}
+
+
+static void add_layout(const char *layout_name, cfg_t *color_cfg)
+{
+    const char *fg, *bg, *attr_str = NULL;
+    int size = -1, fg_code, bg_code, attr_mask, layout_idx = 0;
+
+    size = cfg_size(color_cfg, "color_pair");
+    fg = cfg_getnstr(color_cfg, "color_pair", 0);
+    bg = cfg_getnstr(color_cfg, "color_pair", 1);
+    if (size > 2)
+        attr_str = cfg_getnstr(color_cfg, "color_pair", 2);
+
+    fg_code = parse_color(fg);
+    bg_code = parse_color(bg);
+    if (fg_code == -1 || bg_code == -1) {
+        quit("Unknown color [%s]: %s\n", (fg_code == -1) ? "fg" : "bg",
+                (fg_code == -1) ? fg : bg);
+    }
+    attr_mask = parse_attribute(attr_str);
+    if (attr_mask == -1) {
+        quit("Unknown attribute: '%s'\n", attr_str);
+    }
+
+    DBG("%s:\tfg: %s bg: %s attr: %s\n", layout_name, fg, bg, attr_str);
+
+    if ((strcasecmp(layout_name, "default") == 0))
+        layout_idx = LAYOUT_DEFAULT;
+    else if ((strcasecmp(layout_name, "statusbar") == 0))
+        layout_idx = LAYOUT_STATUSBAR;
+    else if ((strcasecmp(layout_name, "header") == 0))
+        layout_idx = LAYOUT_HEADER;
+    else if ((strcasecmp(layout_name, "list") == 0))
+        layout_idx = LAYOUT_LIST;
+    else if ((strcasecmp(layout_name, "selected") == 0))
+        layout_idx = LAYOUT_SELECTED;
+    else if ((strcasecmp(layout_name, "rx_graph") == 0))
+        layout_idx = LAYOUT_RX_GRAPH;
+    else if ((strcasecmp(layout_name, "tx_graph") == 0))
+        layout_idx = LAYOUT_TX_GRAPH;
+    else {
+        quit("Unknown layout name: '%s'\n", layout_name);
+    }
+
+    struct layout l = { fg_code, bg_code, attr_mask};
+    cfg_layout[layout_idx] = l;
+}
+
+#endif /* __BMON_LAYOUT_H_ */

man/bmon.8

@@ -34,7 +34,7 @@ in parallel. bmon automatically loads a useful and working input module
 by default. See INPUT MODULES for more details.
 .RE
 .PP
-\fB \-o\fR, \fB\-\-ouptut\fRMODULE[:OPTIONS][,MODULE...]
+\fB \-o\fR, \fB\-\-output=\fRMODULE[:OPTIONS][,MODULE...]
 .RS 4
 Set list of output modules to load and use. Multiple modules can be used
 in parallel. By default, bmon will use the curses output mode, if that is
@@ -44,7 +44,7 @@ text mode. See OUTPUT MODULES for more details.
 .PP
 \fB \-U\fR, \fB\-\-use\-si\fR
 .RS 4
-Use SI unit system instead of 1KB = 1'024 bytes.
+Use SI unit system (1KB = 1'000 bytes) instead of 1KB = 1'024 bytes.
 .RE
 .PP
 \fB \-f\fR, \fB\-\-configfile=\fRFILE
@@ -58,7 +58,7 @@ Set policy defining which network interfaces to display. See
 INTERFACE SELECTION for more details.
 .RE
 .PP
-\fB \-a\fR, \fB\-\-show\-all=\fR
+\fB \-a\fR, \fB\-\-show\-all\fR
 .RS 4
 Display all interfaces, even interface that are administratively down.
 .RE
@@ -75,6 +75,11 @@ Set interval in seconds in which the rate per counter is calculated.
 The default is 1.0 seconds.
 .RE
 .PP
+\fB \-b\fR, \fB\-\-use\-bit\fR
+.RS 4
+Show rates in bits per second instead of bytes per second.
+.RE
+.PP
 \fB \-L\fR, \fB\-\-lifetime=\fRFLOAT
 .RS 4
 Set lifetime of an element in seconds before it is no longer displayed
@@ -215,6 +220,14 @@ and eth1:
 .RS 4
 \fBbmon \-p eth0,eth1 \-o curses\fP
 .RE
+.PP
+To run bmon in format mode, monitoring any eth* interfaces, with a specified
+format string:
+.PP
+.RS 4
+\fBbmon \-p \(aqeth*\(aq \-o format:fmt=\(aq$(element:name) $(attr:rxrate:packets)\en\(aq\fP
+.RE
+.PP
 
 .SH "FILES"
 /etc/bmon.conf

src/Makefile.am

@@ -7,6 +7,7 @@ bmon_CFLAGS = \
 	-I${top_builddir}/include \
 	-DSYSCONFDIR=\"$(sysconfdir)\" \
 	-D_GNU_SOURCE \
+	-Wall \
 	$(CURSES_CFLAGS) \
 	$(CONFUSE_CFLAGS) \
 	$(LIBNL_CFLAGS) \
@@ -40,4 +41,5 @@ bmon_SOURCES = \
 	out_null.c \
 	out_format.c \
 	out_ascii.c \
-	out_curses.c
+	out_curses.c \
+	out_trigger.c

src/attr.c

@@ -111,7 +111,7 @@ int attr_def_add(const char *name, const char *desc, struct unit *unit,
 	return def->ad_id;
 }
 
-void attr_def_free(struct attr_def *def)
+static void attr_def_free(struct attr_def *def)
 {
 	if (!def)
 		return;
@@ -524,6 +524,11 @@ static float __calc_usage(double rate, uint64_t max)
 	return 100.0f / ((double) max / (rate * cfg_rate_interval));
 }
 
+uint64_t rate_get_total(struct rate *r)
+{
+	return r->r_total - r->r_reset;
+}
+
 void attr_calc_usage(struct attr *a, float *rx, float *tx,
 		     uint64_t rxmax, uint64_t txmax)
 {
@@ -626,6 +631,14 @@ void attr_notify_update(struct attr *a, timestamp_t *ts)
 	}
 }
 
+void attr_reset_counter(struct attr *a)
+{
+	if (a->a_def->ad_type == ATTR_TYPE_COUNTER) {
+		a->a_rx_rate.r_reset = a->a_rx_rate.r_total;
+		a->a_tx_rate.r_reset = a->a_tx_rate.r_total;
+	}
+}
+
 static void __exit attr_exit(void)
 {
 	struct attr_def *ad, *n;

src/bmon.c

@@ -33,8 +33,6 @@
 #include <bmon/group.h>
 
 int start_time;
-int do_quit = 0;
-int is_daemon = 0;
 
 struct reader_timing rtiming;
 
@@ -69,14 +67,14 @@ static char *usage_text =
 "   Examples:\n" \
 "       -o curses:ngraph=2\n" \
 "       -o list            # Shows a list of available modules\n" \
-"       -o curses:help     # Shows a help text for html module\n" \
+"       -o curses:help     # Shows a help text for curses module\n" \
 "\n" \
 "Interface selection:\n" \
 "   policy  := [!]simple_regexp,[!]simple_regexp,...\n" \
 "\n" \
 "   Example: -p 'eth*,lo*,!eth1'\n" \
 "\n" \
-"Please see the bmon(1) man pages for full documentation.\n";
+"Please see the bmon(8) man pages for full documentation.\n";
 
 static void do_shutdown(void)
 {
@@ -88,14 +86,7 @@ static void do_shutdown(void)
 	}
 }
 
-RETSIGTYPE sig_int(int unused)
+static void sig_exit(void)
-{
-	if (do_quit)
-		exit(-1);
-	do_quit = 1;
-}
-
-void sig_exit(void)
 {
 	do_shutdown();
 }
@@ -120,7 +111,7 @@ void quit(const char *fmt, ...)
 static inline void print_version(void)
 {
 	printf("bmon %s\n", PACKAGE_VERSION);
-	printf("Copyright (C) 2001-2013 by Thomas Graf <tgraf@suug.ch>\n");
+	printf("Copyright (C) 2001-2015 by Thomas Graf <tgraf@suug.ch>\n");
 	printf("Copyright (C) 2013 Red Hat, Inc.\n");
 	printf("bmon comes with ABSOLUTELY NO WARRANTY. This is free " \
 	       "software, and you\nare welcome to redistribute it under " \
@@ -136,10 +127,10 @@ static void parse_args_pre(int argc, char *argv[])
 		char *gostr = "+:hvVf:";
 
 		struct option long_opts[] = {
-			{"help", 0, 0, 'h'},
+			{"help", 0, NULL, 'h'},
-			{"version", 0, 0, 'v'},
+			{"version", 0, NULL, 'v'},
-			{"configfile", 1, 0, 'f'},
+			{"configfile", 1, NULL, 'f'},
-			{0, 0, 0, 0},
+			{NULL, 0, NULL, 0},
 		};
 		int c = getopt_long(argc, argv, gostr, long_opts, NULL);
 		if (c == -1)
@@ -175,17 +166,17 @@ static int parse_args_post(int argc, char *argv[])
 			      "L:hvVf:";
 
 		struct option long_opts[] = {
-			{"input", 1, 0, 'i'},
+			{"input", 1, NULL, 'i'},
-			{"output", 1, 0, 'o'},
+			{"output", 1, NULL, 'o'},
-			{"policy", 1, 0, 'p'},
+			{"policy", 1, NULL, 'p'},
-			{"read-interval", 1, 0, 'r'},
+			{"read-interval", 1, NULL, 'r'},
-			{"rate-interval", 1, 0, 'R'},
+			{"rate-interval", 1, NULL, 'R'},
-			{"sleep-interval", 1, 0, 's'},
+			{"sleep-interval", 1, NULL, 's'},
-			{"show-all", 0, 0, 'a'},
+			{"show-all", 0, NULL, 'a'},
-			{"use-si", 0, 0, 'U'},
+			{"use-si", 0, NULL, 'U'},
-			{"use-bit", 0, 0, 'b'},
+			{"use-bit", 0, NULL, 'b'},
-			{"lifetime", 1, 0, 'L'},
+			{"lifetime", 1, NULL, 'L'},
-			{0, 0, 0, 0},
+			{NULL, 0, NULL, 0},
 		};
 		int c = getopt_long(argc, argv, gostr, long_opts, NULL);
 		if (c == -1)
@@ -220,7 +211,7 @@ static int parse_args_post(int argc, char *argv[])
 				break;
 
 			case 'a':
-				cfg_setint(cfg, "show_all", 1);
+				cfg_setbool(cfg, "show_all", cfg_true);
 				break;
 
 			case 'U':
@@ -270,7 +261,7 @@ int main(int argc, char *argv[])
 	unsigned long sleep_time;
 	double read_interval;
 	
-	start_time = time(0);
+	start_time = time(NULL);
 	memset(&rtiming, 0, sizeof(rtiming));
 	rtiming.rt_variance.v_min = FLT_MAX;
 
@@ -361,9 +352,6 @@ int main(int argc, char *argv[])
 				output_post();
 			}
 
-			if (do_quit)
-				exit(0);
-
 			/*
 			 * ST := Configured ST
 			 */
@@ -399,5 +387,4 @@ int main(int argc, char *argv[])
 static void __init bmon_init(void)
 {
 	atexit(&sig_exit);
-	//signal(SIGINT, &sig_int);
 }

src/conf.c

@@ -30,6 +30,7 @@
 #include <bmon/element.h>
 #include <bmon/element_cfg.h>
 #include <bmon/history.h>
+#include <bmon/layout.h>
 #include <bmon/utils.h>
 
 cfg_t *cfg;
@@ -69,6 +70,16 @@ static cfg_opt_t unit_opts[] = {
 	CFG_END()
 };
 
+static cfg_opt_t color_opts[] = {
+    CFG_STR_LIST("color_pair", "", CFGF_NONE),
+    CFG_END()
+};
+
+static cfg_opt_t layout_opts[] = {
+    CFG_SEC("color", color_opts, CFGF_MULTI | CFGF_TITLE),
+    CFG_END()
+};
+
 static cfg_opt_t global_opts[] = {
 	CFG_FLOAT("read_interval", 1.0f, CFGF_NONE),
 	CFG_FLOAT("rate_interval", 1.0f, CFGF_NONE),
@@ -87,6 +98,7 @@ static cfg_opt_t global_opts[] = {
 	CFG_SEC("attr", attr_opts, CFGF_MULTI | CFGF_TITLE),
 	CFG_SEC("history", history_opts, CFGF_MULTI | CFGF_TITLE),
 	CFG_SEC("element", element_opts, CFGF_MULTI | CFGF_TITLE),
+    CFG_SEC("layout", layout_opts, CFGF_MULTI | CFGF_TITLE),
 	CFG_END()
 };
 
@@ -109,16 +121,20 @@ struct layout cfg_layout[] =
     {-1, -1, 0},            /* header */
     {-1, -1, 0},            /* list */
     {-1, -1, A_REVERSE},    /* selected */
+    {-1, -1, 0},            /* RX graph */
+    {-1, -1, 0},            /* TX graph */
 };
 #else
 struct layout cfg_layout[] =
 {
 	{0, 0, 0},                               /* dummy, not used */
-	{COLOR_BLACK, COLOR_WHITE, 0},          /* default */
+	{COLOR_WHITE, COLOR_BLACK, 0},           /* default */
-	{COLOR_BLACK, COLOR_WHITE, A_REVERSE},  /* statusbar */
+	{COLOR_BLUE,   COLOR_GREEN, A_REVERSE},  /* statusbar */
-	{COLOR_BLACK, COLOR_WHITE, 0},          /* header */
+	{COLOR_GREEN,  COLOR_BLACK, 0},          /* header */
-	{COLOR_BLACK, COLOR_WHITE, 0},          /* list */
+	{COLOR_WHITE,  COLOR_BLACK, 0},          /* list */
-	{COLOR_BLACK, COLOR_WHITE, A_REVERSE},  /* selected */
+	{COLOR_YELLOW, COLOR_BLACK, A_REVERSE},  /* selected */
+    {COLOR_GREEN,  COLOR_BLACK, 0},          /* RX graph */
+    {COLOR_RED,    COLOR_BLACK, 0},          /* TX graph */
 };
 #endif
 #endif
@@ -371,7 +387,7 @@ static void configfile_read_units(void)
 
 static void configfile_read_attrs(void)
 {
-	int i, nattrs, t;
+	int i, nattrs, t = 0;
 
 	nattrs = cfg_size(cfg, "attr");
 
@@ -423,6 +439,41 @@ static void configfile_read_attrs(void)
 	}
 }
 
+static void configfile_read_layout_cfg(void)
+{
+    int i, nlayouts;
+    cfg_t *lout;
+    nlayouts = cfg_size(cfg, "layout");
+    for (i = 0; i < nlayouts; i++)
+    {
+        int c, ncolors;
+        const char *name;
+        if (!(lout = cfg_getnsec(cfg, "layout", i)))
+            BUG();
+
+        if (!(name = cfg_title(lout)))
+            BUG();
+
+        ncolors = cfg_size(lout, "color");
+        if (ncolors > LAYOUT_MAX) {
+            fprintf(stderr, "Warning excceeded maximum number of layouts\n");
+            ncolors = LAYOUT_MAX;
+        }
+
+        for (c = 0; c < ncolors; c++) {
+            cfg_t *color_pair;
+
+            if (!(color_pair = cfg_getnsec(lout, "color", c)))
+                BUG();
+
+            if (!(name = cfg_title(color_pair)))
+                BUG();
+
+            add_layout(name, color_pair);
+        }
+    }
+}
+
 static void conf_read(const char *path, int must)
 {
 	int err;
@@ -450,6 +501,7 @@ static void conf_read(const char *path, int must)
 	configfile_read_history();
 	configfile_read_attrs();
 	configfile_read_element_cfg();
+    configfile_read_layout_cfg();
 }
 
 static const char default_config[] = \
@@ -508,6 +560,29 @@ static const char default_config[] = \
 "history day {" \
 "	interval	= 86400.0" \
 "	size		= 60" \
+"}"
+"layout colors {" \
+"   color default {" \
+"       color_pair = { \"white\", \"black\" }" \
+"   }" \
+"   color statusbar{" \
+"       color_pair = { \"blue\", \"white\", \"reverse\" }" \
+"   }" \
+"   color header {" \
+"       color_pair = { \"yellow\", \"black\" }" \
+"   }" \
+"   color list {" \
+"       color_pair = { \"white\", \"black\" }" \
+"   }" \
+"   color selected {" \
+"       color_pair = { \"yellow\", \"black\", \"reverse\" }" \
+"   }" \
+"   color rx_graph {" \
+"       color_pair = { \"green\", \"black\" }" \
+"   }" \
+"   color tx_graph {" \
+"       color_pair = { \"red\", \"black\" }" \
+"   }" \
 "}";
 
 static void conf_read_default(void)
@@ -524,6 +599,7 @@ static void conf_read_default(void)
 	configfile_read_history();
 	configfile_read_attrs();
 	configfile_read_element_cfg();
+    configfile_read_layout_cfg();
 }
 
 void configfile_read(void)

src/element.c

@@ -113,8 +113,9 @@ void element_parse_policy(const char *policy)
 	xfree(copy);
 }
 
-struct element *__lookup_element(struct element_group *group, const char *name,
+static struct element *__lookup_element(struct element_group *group,
-				 uint32_t id, struct element *parent)
+					const char *name, uint32_t id,
+					struct element *parent)
 {
 	struct list_head *list;
 	struct element *e;
@@ -200,12 +201,6 @@ void element_free(struct element *e)
 	struct attr *a, *an;
 	int i;
 
-	if (e->e_group->g_current == e) {
-		element_select_prev();
-		if (e->e_group->g_current == e)
-			e->e_group->g_current = NULL;
-	}
-
 	list_for_each_entry_safe(c, cnext, &e->e_childs, e_list)
 		element_free(c);
 
@@ -220,6 +215,12 @@ void element_free(struct element *e)
 		list_for_each_entry_safe(a, an, &e->e_attrhash[i], a_list)
 			attr_free(a);
 
+	if (e->e_group->g_current == e) {
+		element_select_prev();
+		if (e->e_group->g_current == e)
+			e->e_group->g_current = NULL;
+	}
+
 	list_del(&e->e_list);
 	e->e_group->g_nelements--;
 
@@ -357,6 +358,26 @@ int element_set_usage_attr(struct element *e, const char *usage)
 	return 0;
 }
 
+void element_pick_from_policy(struct element_group *g)
+{
+	if (!list_empty(&allowed)) {
+		struct policy *p;
+
+		list_for_each_entry(p, &allowed, p_list) {
+			struct element *e;
+
+			list_for_each_entry(e, &g->g_elements, e_list) {
+				if (match_mask(p, e->e_name)) {
+					g->g_current = e;
+					return;
+				}
+			}
+		}
+	}
+
+	element_select_first();
+}
+
 struct element *element_current(void)
 {
 	struct element_group *g;
@@ -364,8 +385,12 @@ struct element *element_current(void)
 	if (!(g = group_current()))
 		return NULL;
 
+	/*
+	 * If no element is picked yet, pick a default interface according to
+	 * the selection policy.
+	 */
 	if (!g->g_current)
-		element_select_first();
+		element_pick_from_policy(g);
 
 	return g->g_current;
 }

src/graph.c

@@ -58,26 +58,6 @@ static inline char *tbl_pos(struct graph_cfg *cfg, char *tbl, int nrow, int ncol
 	return at_col(at_row(cfg, tbl, nrow), ncol);
 }
 
-static void write_column(struct graph_cfg *cfg, struct graph_table *tbl, int ncol,
-			 uint64_t value, double *scale, double half_step)
-{
-	char *col = at_col(tbl->gt_table, ncol);
-	int i;
-
-#if 0
-	if (value == UNK_DATA) {
-		for (i = 0; i < height; i++)
-			*(at_row(g, col, i)) = unk_char;
-#endif
-	if (value) {
-		*(at_row(cfg, col, 0)) = ':';
-
-		for (i = 0; i < cfg->gc_height; i++)
-			if (value >= (scale[i] - half_step))
-				*(at_row(cfg, col, i)) = cfg->gc_foreground;
-	}
-}
-
 static void fill_table(struct graph *g, struct graph_table *tbl,
 		       struct history *h, struct history_store *data)
 {

src/group.c

@@ -261,7 +261,7 @@ static void __init group_init(void)
 {
 	DBG("init");
 
-	group_new_hdr("intf", "Interfaces",
+	group_new_hdr(DEFAULT_GROUP, "Interfaces",
 		      "RX bps", "pps", "TX bps", "pps");
 }
 

src/in_dummy.c

@@ -89,7 +89,11 @@ static void dummy_read(void)
 		char gname[32];
 		struct element_group *group;
 
+		if (gidx == 0)
+			snprintf(gname, sizeof(gname), "%s", DEFAULT_GROUP);
+		else
 			snprintf(gname, sizeof(gname), "group%02d", gidx);
+
 		group = group_lookup(gname, GROUP_CREATE);
 
 		for (n = 0; n < c_numdev; n++) {
@@ -185,7 +189,7 @@ static void dummy_parse_opt(const char *type, const char *value)
 		c_numdev = strtol(value, NULL, 0);
 	else if (!strcasecmp(type, "randomize")) {
 		c_randomize = 1;
-		srand(time(0));
+		srand(time(NULL));
 	} else if (!strcasecmp(type, "seed") && value)
 		srand(strtol(value, NULL, 0));
 	else if (!strcasecmp(type, "mtu") && value)

src/in_netlink.c

@@ -37,6 +37,8 @@ static int c_notc = 0;
 static struct element_group *grp;
 static struct bmon_module netlink_ops;
 
+#include <linux/if.h>
+
 #include <netlink/netlink.h>
 #include <netlink/cache.h>
 #include <netlink/utils.h>
@@ -47,6 +49,22 @@ static struct bmon_module netlink_ops;
 #include <netlink/route/classifier.h>
 #include <netlink/route/qdisc/htb.h>
 
+/* These counters are not available prior to libnl 3.2.25. Set them to -1 so
+ * rtnl_link_get_stat() won't be called for them. */
+#if LIBNL_CURRENT < 220
+# define RTNL_LINK_ICMP6_CSUMERRORS	-1
+# define RTNL_LINK_IP6_CSUMERRORS	-1
+# define RTNL_LINK_IP6_NOECTPKTS	-1
+# define RTNL_LINK_IP6_ECT1PKTS		-1
+# define RTNL_LINK_IP6_ECT0PKTS		-1
+# define RTNL_LINK_IP6_CEPKTS		-1
+#endif
+
+/* Not available prior to libnl 3.2.29 */
+#if LIBNL_CURRENT < 224
+# define RTNL_LINK_RX_NOHANDLER		-1
+#endif
+
 static struct attr_map link_attrs[] = {
 {
 	.name		= "bytes",
@@ -88,6 +106,14 @@ static struct attr_map link_attrs[] = {
 	.rxid		= RTNL_LINK_RX_COMPRESSED,
 	.txid		= RTNL_LINK_TX_COMPRESSED,
 },
+{
+	.name		= "nohandler",
+	.type		= ATTR_TYPE_COUNTER,
+	.unit		= UNIT_NUMBER,
+	.description	= "No Handler",
+	.rxid		= RTNL_LINK_RX_NOHANDLER,
+	.txid		= -1,
+},
 {
 	.name		= "fifoerr",
 	.type		= ATTR_TYPE_COUNTER,
@@ -280,6 +306,14 @@ static struct attr_map link_attrs[] = {
 	.rxid		= RTNL_LINK_ICMP6_INERRORS,
 	.txid		= RTNL_LINK_ICMP6_OUTERRORS,
 },
+{
+	.name		= "icmp6csumerr",
+	.type		= ATTR_TYPE_COUNTER,
+	.unit		= UNIT_NUMBER,
+	.description	= "ICMPv6 Checksum Errors",
+	.rxid		= RTNL_LINK_ICMP6_CSUMERRORS,
+	.txid		= -1,
+},
 {
 	.name		= "ip6inhdrerr",
 	.type		= ATTR_TYPE_COUNTER,
@@ -320,6 +354,14 @@ static struct attr_map link_attrs[] = {
 	.rxid		= RTNL_LINK_IP6_INADDRERRORS,
 	.txid		= -1,
 },
+{
+	.name		= "ip6csumerr",
+	.type		= ATTR_TYPE_COUNTER,
+	.unit		= UNIT_NUMBER,
+	.description	= "Ip6 Checksum Error",
+	.rxid		= RTNL_LINK_IP6_CSUMERRORS,
+	.txid		= -1,
+},
 {
 	.name		= "ip6reasmtimeo",
 	.type		= ATTR_TYPE_COUNTER,
@@ -351,6 +393,38 @@ static struct attr_map link_attrs[] = {
 	.description	= "Ip6 Reasm/Frag Requests",
 	.rxid		= RTNL_LINK_IP6_REASMREQDS,
 	.txid		= RTNL_LINK_IP6_FRAGCREATES,
+},
+{
+	.name		= "ip6noectpkts",
+	.type		= ATTR_TYPE_COUNTER,
+	.unit		= UNIT_NUMBER,
+	.description	= "Ip6 Non-ECT Packets",
+	.rxid		= RTNL_LINK_IP6_NOECTPKTS,
+	.txid		= -1,
+},
+{
+	.name		= "ip6ect1pkts",
+	.type		= ATTR_TYPE_COUNTER,
+	.unit		= UNIT_NUMBER,
+	.description	= "Ip6 ECT(1) Packets",
+	.rxid		= RTNL_LINK_IP6_ECT1PKTS,
+	.txid		= -1,
+},
+{
+	.name		= "ip6ect0pkts",
+	.type		= ATTR_TYPE_COUNTER,
+	.unit		= UNIT_NUMBER,
+	.description	= "Ip6 ECT(0) Packets",
+	.rxid		= RTNL_LINK_IP6_ECT0PKTS,
+	.txid		= -1,
+},
+{
+	.name		= "ip6cepkts",
+	.type		= ATTR_TYPE_COUNTER,
+	.unit		= UNIT_NUMBER,
+	.description	= "Ip6 CE Packets",
+	.rxid		= RTNL_LINK_IP6_CEPKTS,
+	.txid		= -1,
 }
 };
 
@@ -430,12 +504,13 @@ static struct attr_map tc_attrs[] = {
 };
 
 struct rdata {
+	struct nl_cache *	class_cache;
 	struct element *	parent;
 	int 			level;
 };
 
 static struct nl_sock *sock;
-static struct nl_cache *link_cache, *qdisc_cache, *class_cache;
+static struct nl_cache *link_cache, *qdisc_cache;
 
 static void update_tc_attrs(struct element *e, struct rtnl_tc *tc)
 {
@@ -470,10 +545,10 @@ static void update_tc_infos(struct element *e, struct rtnl_tc *tc)
 
 static void handle_qdisc(struct nl_object *obj, void *);
 static void find_classes(uint32_t, struct rdata *);
-static void find_qdiscs(uint32_t, struct rdata *);
+static void find_qdiscs(int, uint32_t, struct rdata *);
 
 static struct element *handle_tc_obj(struct rtnl_tc *tc, const char *prefix,
-				     struct rdata *rdata)
+				     const struct rdata *rdata)
 {
 	char buf[IFNAME_MAX], name[IFNAME_MAX];
 	uint32_t id = rtnl_tc_get_handle(tc);
@@ -483,11 +558,14 @@ static struct element *handle_tc_obj(struct rtnl_tc *tc, const char *prefix,
 	snprintf(name, sizeof(name), "%s %s (%s)",
 		 prefix, buf, rtnl_tc_get_kind(tc));
 
-	if (!(e = element_lookup(grp, name, id, rdata ? rdata->parent : NULL, ELEMENT_CREAT)))
+	if (!rdata || !rdata->parent)
+		BUG();
+
+	if (!(e = element_lookup(grp, name, id, rdata->parent, ELEMENT_CREAT)))
 		return NULL;
 
 	if (e->e_flags & ELEMENT_FLAG_CREATED) {
-		e->e_level = rdata ? rdata->level : 0;
+		e->e_level = rdata->level;
 
 		if (element_set_key_attr(e, "tc_bytes", "tc_packets") ||
 		    element_set_usage_attr(e, "tc_bytes"))
@@ -518,8 +596,9 @@ static void handle_class(struct nl_object *obj, void *arg)
 {
 	struct rtnl_tc *tc = (struct rtnl_tc *) obj;
 	struct element *e;
-	struct rdata *rdata = arg;
+	const struct rdata *rdata = arg;
 	struct rdata ndata = {
+		.class_cache = rdata->class_cache,
 		.level = rdata->level + 1,
 	};
 
@@ -532,10 +611,10 @@ static void handle_class(struct nl_object *obj, void *arg)
 		element_set_txmax(e, rtnl_htb_get_rate((struct rtnl_class *) tc));
 
 	find_classes(rtnl_tc_get_handle(tc), &ndata);
-	find_qdiscs(rtnl_tc_get_handle(tc), &ndata);
+	find_qdiscs(rtnl_tc_get_ifindex(tc), rtnl_tc_get_handle(tc), &ndata);
 }
 
-static void find_qdiscs(uint32_t parent, struct rdata *rdata)
+static void find_qdiscs(int ifindex, uint32_t parent, struct rdata *rdata)
 {
 	struct rtnl_qdisc *filter;
 
@@ -543,6 +622,7 @@ static void find_qdiscs(uint32_t parent, struct rdata *rdata)
 		return;
 
 	rtnl_tc_set_parent((struct rtnl_tc *) filter, parent);
+	rtnl_tc_set_ifindex((struct rtnl_tc *) filter, ifindex);
 
 	nl_cache_foreach_filter(qdisc_cache, OBJ_CAST(filter),
 				handle_qdisc, rdata);
@@ -571,7 +651,7 @@ static void find_classes(uint32_t parent, struct rdata *rdata)
 
 	rtnl_tc_set_parent((struct rtnl_tc *) filter, parent);
 
-	nl_cache_foreach_filter(class_cache, OBJ_CAST(filter),
+	nl_cache_foreach_filter(rdata->class_cache, OBJ_CAST(filter),
 				handle_class, rdata);
 
 	rtnl_class_put(filter);
@@ -581,8 +661,9 @@ static void handle_qdisc(struct nl_object *obj, void *arg)
 {
 	struct rtnl_tc *tc = (struct rtnl_tc *) obj;
 	struct element *e;
-	struct rdata *rdata = arg;
+	const struct rdata *rdata = arg;
 	struct rdata ndata = {
+		.class_cache = rdata->class_cache,
 		.level = rdata->level + 1,
 	};
 
@@ -604,6 +685,7 @@ static void handle_qdisc(struct nl_object *obj, void *arg)
 static void handle_tc(struct element *e, struct rtnl_link *link)
 {
 	struct rtnl_qdisc *qdisc;
+	struct nl_cache *class_cache;
 	int ifindex = rtnl_link_get_ifindex(link);
 	struct rdata rdata = {
 		.level = 1,
@@ -613,6 +695,8 @@ static void handle_tc(struct element *e, struct rtnl_link *link)
 	if (rtnl_class_alloc_cache(sock, ifindex, &class_cache) < 0)
 		return;
 
+	rdata.class_cache = class_cache;
+
 	qdisc = rtnl_qdisc_get_by_parent(qdisc_cache, ifindex, TC_H_ROOT);
 	if (qdisc) {
 		handle_qdisc(OBJ_CAST(qdisc), &rdata);
@@ -736,7 +820,7 @@ static void do_link(struct nl_object *obj, void *arg)
 		attr_update(e, m->attrid, c_rx, c_tx, flags);
 	}
 
-	if (!c_notc)
+	if (!c_notc && qdisc_cache)
 		handle_tc(e, link);
 
 	element_notify_update(e, NULL);
@@ -752,7 +836,8 @@ static void netlink_read(void)
 		goto disable;
 	}
 
-	if ((err = nl_cache_resync(sock, qdisc_cache, NULL, NULL)) < 0) {
+	if (qdisc_cache &&
+	    (err = nl_cache_resync(sock, qdisc_cache, NULL, NULL)) < 0) {
 		fprintf(stderr, "Unable to resync qdisc cache: %s\n", nl_geterror(err));
 		goto disable;
 	}
@@ -772,9 +857,20 @@ static void netlink_shutdown(void)
 	nl_socket_free(sock);
 }
 
+static void netlink_use_bit(struct attr_map *map, const int size)
+{
+	if(cfg_getbool(cfg, "use_bit")) {
+		for(int i = 0; i < size; ++i) {
+			if(!strcmp(map[i].description, "Bytes")) {
+				map[i].description = "Bits";
+			}
+		}
+	}
+}
+
 static int netlink_do_init(void)
 {
-	int err, i;
+	int err;
 
 	if (!(sock = nl_socket_alloc())) {
 		fprintf(stderr, "Unable to allocate netlink socket\n");
@@ -792,10 +888,13 @@ static int netlink_do_init(void)
 	}
 
 	if ((err = rtnl_qdisc_alloc_cache(sock, &qdisc_cache)) < 0) {
-		fprintf(stderr, "Unable to allocate qdisc cache: %s\n", nl_geterror(err));
+		fprintf(stderr, "Warning: Unable to allocate qdisc cache: %s\n", nl_geterror(err));
-		goto disable;
+		fprintf(stderr, "Disabling QoS statistics.\n");
+		qdisc_cache = NULL;
 	}
 
+	netlink_use_bit(link_attrs, ARRAY_SIZE(link_attrs));
+	netlink_use_bit(tc_attrs, ARRAY_SIZE(tc_attrs));
 	if (attr_map_load(link_attrs, ARRAY_SIZE(link_attrs)) ||
 	    attr_map_load(tc_attrs, ARRAY_SIZE(tc_attrs)))
 		BUG();

src/in_proc.c

@@ -101,7 +101,7 @@ static void proc_read(void)
 {
 	struct element *e;
 	FILE *fd;
-	char buf[512], *p, *s, *unused;
+	char buf[512], *p, *s, *unused __unused__;
 	int w;
 	
 	if (!(fd = fopen(c_path, "r")))

src/in_sysctl.c

@@ -163,6 +163,7 @@ sysctl_read(void)
 		struct element *e, *e_parent = NULL;
 		struct if_msghdr *ifm, *nextifm;
 		struct sockaddr_dl *sdl;
+		char info_buf[64];
 
 		ifm = (struct if_msghdr *) next;
 		if (ifm->ifm_type != RTM_IFINFO)
@@ -225,6 +226,20 @@ sysctl_read(void)
 			attr_update(e, m->attrid, rx, tx, flags);
 		}
 
+		snprintf(info_buf, sizeof(info_buf), "%ju", (uintmax_t)ifm->ifm_data.ifi_mtu);
+		element_update_info(e, "MTU", info_buf);
+
+		snprintf(info_buf, sizeof(info_buf), "%ju", (uintmax_t)ifm->ifm_data.ifi_metric);
+		element_update_info(e, "Metric", info_buf);
+
+#if !(defined(__NetBSD__) || defined(__FreeBSD__))
+		snprintf(info_buf, sizeof(info_buf), "%u", ifm->ifm_data.ifi_recvquota);
+		element_update_info(e, "RX-Quota", info_buf);
+
+		snprintf(info_buf, sizeof(info_buf), "%u", ifm->ifm_data.ifi_xmitquota);
+		element_update_info(e, "TX-Quota", info_buf);
+#endif
+
 		element_notify_update(e, NULL);
 		element_lifesign(e, 1);
 	}

src/module.c

@@ -130,7 +130,6 @@ static void __auto_load(struct bmon_module *m)
 int module_set(struct bmon_subsys *ss, const char *name)
 {
 	struct bmon_module *mod;
-	struct list_head *list;
 	LIST_HEAD(tmp_list);
 	module_conf_t *m;
 

src/out_ascii.c

@@ -101,10 +101,10 @@ static void print_attr_detail(struct element *e, struct attr *a, void *arg)
 	char *rx_u, *tx_u;
 	int rxprec, txprec;
 
-	double rx = unit_value2str(a->a_rx_rate.r_total,
+	double rx = unit_value2str(rate_get_total(&a->a_rx_rate),
 				   a->a_def->ad_unit,
 				   &rx_u, &rxprec);
-	double tx = unit_value2str(a->a_tx_rate.r_total,
+	double tx = unit_value2str(rate_get_total(&a->a_tx_rate),
 				   a->a_def->ad_unit,
 				   &tx_u, &txprec);
 
@@ -212,6 +212,7 @@ static void ascii_draw_group(struct element_group *g, void *arg)
 static void ascii_draw(void)
 {
 	group_foreach(ascii_draw_group, NULL);
+	fflush(stdout);
 
 	if (c_quit_after > 0)
 		if (--c_quit_after == 0)

src/out_curses.c

@@ -45,6 +45,8 @@ enum {
 	KEY_TOGGLE_DETAILS	= 'd',
 	KEY_TOGGLE_INFO		= 'i',
 	KEY_COLLECT_HISTORY	= 'h',
+	KEY_CTRL_N	= 14,
+	KEY_CTRL_P	= 16,
 };
 
 #define DETAILS_COLS		40
@@ -137,7 +139,7 @@ static void apply_layout(int layout)
 		attrset(cfg_layout[layout].l_attr);
 }
 
-char *float2str(double value, int width, int prec, char *buf, size_t len)
+static char *float2str(double value, int width, int prec, char *buf, size_t len)
 {
 	snprintf(buf, len, "%'*.*f", width, value == 0.0f ? 0 : prec, value);
 
@@ -147,22 +149,24 @@ char *float2str(double value, int width, int prec, char *buf, size_t len)
 static void put_line(const char *fmt, ...)
 {
 	va_list args;
-	char buf[2048];
+	char *buf;
-	int x, y;
+	int len;
+	int x, y __unused__;
 
-	memset(buf, 0, sizeof(buf));
 	getyx(stdscr, y, x);
 
+	len = cols - x;
+	buf = xcalloc(len+1, 1);
+
 	va_start(args, fmt);
-	vsnprintf(buf, sizeof(buf), fmt, args);
+	vsnprintf(buf, len+1, fmt, args);
 	va_end(args);
 
-	if (strlen(buf) > cols-x)
+	if (strlen(buf) < len)
-		buf[cols - x] = '\0';
+		memset(&buf[strlen(buf)], ' ', len - strlen(buf));
-	else
-		memset(&buf[strlen(buf)], ' ', cols - strlen(buf)-x);
 
 	addstr(buf);
+	xfree(buf);
 }
 
 static void center_text(const char *fmt, ...)
@@ -241,10 +245,10 @@ static void draw_attr_detail(struct element *e, struct attr *a, void *arg)
 	int rxprec, txprec, ncol;
 	struct detail_arg *da = arg;
 
-	double rx = unit_value2str(a->a_rx_rate.r_total,
+	double rx = unit_value2str(rate_get_total(&a->a_rx_rate),
 				   a->a_def->ad_unit,
 				   &rx_u, &rxprec);
-	double tx = unit_value2str(a->a_tx_rate.r_total,
+	double tx = unit_value2str(rate_get_total(&a->a_tx_rate),
 				   a->a_def->ad_unit,
 				   &tx_u, &txprec);
 
@@ -258,7 +262,7 @@ static void draw_attr_detail(struct element *e, struct attr *a, void *arg)
 	if (ncol > 0)
 		addch(ACS_VLINE);
 
-	put_line(" %-14.14s %8s%-3s %8s%-3s\n",
+	put_line(" %-14.14s %8s%-3s %8s%-3s",
 		 a->a_def->ad_description,
 		 (a->a_flags & ATTR_RX_ENABLED) ?
 		 float2str(rx, 8, rxprec, buf1, sizeof(buf1)) : "-", rx_u,
@@ -392,6 +396,7 @@ static void draw_help(void)
 	mvaddnstr(y+15, x+3, "H             Start recording history data", -1);
 	mvaddnstr(y+16, x+3, "TAB           Switch time unit of graph", -1);
 	mvaddnstr(y+17, x+3, "<, >          Change number of graphs", -1);
+	mvaddnstr(y+18, x+3, "r             Reset counter of element", -1);
 
 	attroff(A_STANDOUT);
 
@@ -419,6 +424,7 @@ static void draw_header(void)
 	move(row, COLS - strlen(PACKAGE_STRING) - 1);
 	put_line("%s", PACKAGE_STRING);
 	move(row, 0);
+	apply_layout(LAYOUT_LIST);
 }
 
 static int lines_required_for_statusbar(void)
@@ -430,7 +436,7 @@ static void draw_statusbar(void)
 {
 	static const char *help_text = "Press ? for help";
 	char s[27];
-	time_t t = time(0);
+	time_t t = time(NULL);
 
 	apply_layout(LAYOUT_STATUSBAR);
 
@@ -631,6 +637,7 @@ static void draw_element(struct element_group *g, struct element *e,
 
 static void draw_group(struct element_group *g, void *arg)
 {
+	apply_layout(LAYOUT_HEADER);
 	int *line = arg;
 
 	if (line_visible(*line)) {
@@ -683,7 +690,7 @@ static void draw_graph_centered(struct graph *g, int row, int ncol,
 
 static void draw_table(struct graph *g, struct graph_table *tbl,
 		       struct attr *a, struct history *h,
-		       const char *hdr, int ncol)
+		       const char *hdr, int ncol, int layout)
 {
 	int i, save_row;
 	char buf[32];
@@ -708,11 +715,14 @@ static void draw_table(struct graph *g, struct graph_table *tbl,
 	//move(row, ncol + g->g_cfg.gc_width - 3);
 	//put_line("[err %.2f%%]", rtiming.rt_variance.v_error);
 
+    memset(buf, 0, strlen(buf));
 	for (i = (g->g_cfg.gc_height - 1); i >= 0; i--) {
 		move(++row, ncol);
-		put_line("%'8.2f %s",
+        sprintf(buf, "%'8.2f ", tbl->gt_scale[i]);
-			tbl->gt_scale[i],
+        addstr(buf);
-			tbl->gt_table + (i * graph_row_size(&g->g_cfg)));
+        apply_layout(layout);
+        put_line("%s", tbl->gt_table + (i * graph_row_size(&g->g_cfg)));
+        apply_layout(LAYOUT_LIST);
 	}
 
 	move(++row, ncol);
@@ -746,14 +756,14 @@ static void draw_history_graph(struct attr *a, struct history *h)
 	graph_refill(g, h);
 
 	save_row = row;
-	draw_table(g, &g->g_rx, a, h, "RX", ncol);
+	draw_table(g, &g->g_rx, a, h, "RX", ncol, LAYOUT_RX_GRAPH);
 
 	if (graph_display == GRAPH_DISPLAY_SIDE_BY_SIDE) {
 		ncol = cols / 2;
 		row = save_row;
 	}
 
-	draw_table(g, &g->g_tx, a, h, "TX", ncol);
+	draw_table(g, &g->g_tx, a, h, "TX", ncol, LAYOUT_TX_GRAPH);
 
 	graph_free(g);
 }
@@ -973,8 +983,10 @@ draw:
 	 */
 	NEXT_ROW();
 	hline(ACS_HLINE, cols);
+	if (c_show_list) {
 		mvaddch(row, LIST_COL_1, ACS_BTEE);
 		mvaddch(row, LIST_COL_2, ACS_BTEE);
+	}
 
 	if (!c_show_graph)
 		center_text(" Press %c to enable graphical statistics ",
@@ -1016,6 +1028,12 @@ draw:
 	NEXT_ROW();
 	hline(ACS_HLINE, cols);
 
+	if (c_show_details) {
+		int i;
+		for (i = 1; i < detail_cols; i++)
+			mvaddch(row, (i * DETAILS_COLS) - 1, ACS_BTEE);
+	}
+
 	if (!c_show_info)
 		center_text(" Press %c to enable additional information ",
 			    KEY_TOGGLE_INFO);
@@ -1079,6 +1097,16 @@ out:
 	refresh();
 }
 
+static void __reset_attr_counter(struct element *e, struct attr *a, void *arg)
+{
+	attr_reset_counter(a);
+}
+
+static void reset_counters(void)
+{
+	element_foreach_attr(current_element, __reset_attr_counter, NULL);
+}
+
 static int handle_input(int ch)
 {
 	switch (ch) 
@@ -1160,10 +1188,12 @@ static int handle_input(int ch)
 			return 1;
 
 		case KEY_DOWN:
+		case KEY_CTRL_N:
 			element_select_next();
 			return 1;
 
 		case KEY_UP:
+		case KEY_CTRL_P:
 			element_select_prev();
 			return 1;
 
@@ -1198,6 +1228,10 @@ static int handle_input(int ch)
 		case '\t':
 			history_select_next();
 			return 1;
+
+		case 'r':
+			reset_counters();
+			return 1;
 	}
 
 	return 0;
@@ -1232,7 +1266,7 @@ static void print_module_help(void)
 	"  Author: Thomas Graf <tgraf@suug.ch>\n" \
 	"\n" \
 	"  Options:\n" \
-	"    fgchar=CHAR    Foreground character (default: '*')\n" \
+	"    fgchar=CHAR    Foreground character (default: '|')\n" \
 	"    bgchar=CHAR    Background character (default: '.')\n" \
 	"    nchar=CHAR     Noise character (default: ':')\n" \
 	"    uchar=CHAR     Unknown character (default: '?')\n" \
@@ -1242,6 +1276,7 @@ static void print_module_help(void)
 	"    nocolors       Do not use colors\n" \
 	"    graph          Show graphical stats by default\n" \
 	"    details        Show detailed stats by default\n" \
+	"    info           Show additional info screen by default\n" \
 	"    minlist=INT    Minimum item list length\n");
 }
 
@@ -1264,6 +1299,8 @@ static void curses_parse_opt(const char *type, const char *value)
 		c_show_graph = !!c_ngraph;
 	} else if (!strcasecmp(type, "details"))
 		c_show_details = 1;
+	else if (!strcasecmp(type, "info"))
+		c_show_info = 1;
 	else if (!strcasecmp(type, "nocolors"))
 		c_use_colors = 0;
 	else if (!strcasecmp(type, "minlist") && value)

src/out_format.c

@@ -119,25 +119,23 @@ static char *get_token(struct element_group *g, struct element *e,
 			goto out;
 		}
 
-		if (!(a = attr_lookup(e, def->ad_id))) {
+		if (!(a = attr_lookup(e, def->ad_id)))
-			fprintf(stderr, "Unable to find attribute %u (%s)\n",
-				def->ad_id, name);
 			goto out;
-		}
 
 		if (!strncasecmp(type, "rx:", 3)) {
-			snprintf(buf, len, "%" PRIu64, a->a_rx_rate.r_total);
+			snprintf(buf, len, "%" PRIu64, rate_get_total(&a->a_rx_rate));
 			return buf;
 		} else if (!strncasecmp(type, "tx:", 3)) {
-			snprintf(buf, len, "%" PRIu64, a->a_tx_rate.r_total);
+			snprintf(buf, len, "%" PRIu64, rate_get_total(&a->a_tx_rate));
 			return buf;
 		} else if (!strncasecmp(type, "rxrate:", 7)) {
 			snprintf(buf, len, "%.2f", a->a_rx_rate.r_rate);
 			return buf;
-		} else if (!strncasecmp(token+5, "txrate:", 7))
+		} else if (!strncasecmp(type, "txrate:", 7)) {
 			snprintf(buf, len, "%.2f", a->a_tx_rate.r_rate);
 			return buf;
 		}
+	}
 
 	fprintf(stderr, "Unknown field \"%s\"\n", token);
 out:
@@ -168,6 +166,7 @@ static void draw_element(struct element_group *g, struct element *e, void *arg)
 static void format_draw(void)
 {
 	group_foreach_recursive(draw_element, NULL);
+	fflush(stdout);
 
 	if (c_quit_after > 0)
 		if (--c_quit_after == 0)
@@ -322,15 +321,15 @@ static void print_help(void)
 	"  Supported Escape Sequences: \\n, \\t, \\r, \\v, \\b, \\f, \\a\n" \
 	"\n" \
 	"  Examples:\n" \
-	"    \"$(element:name)\\t$(attr:rx:bytes)\\t$(attr:tx:bytes)\\n\"\n" \
+	"    '$(element:name)\\t$(attr:rx:bytes)\\t$(attr:tx:bytes)\\n'\n" \
 	"    lo      12074   12074\n" \
 	"\n" \
-	"    \"$(element:name) $(attr:rxrate:packets) $(attr:txrate:packets)\\n\"\n" \
+	"    '$(element:name) $(attr:rxrate:packets) $(attr:txrate:packets)\\n'\n" \
 	"    eth0 33 5\n" \
 	"\n" \
-	"    \"Element: $(element:name)\\nBytes Rate: \" \\\n" \
+	"    'Item: $(element:name)\\nBytes Rate: $(attr:rxrate:bytes)/" \
-	"        \"$(attr:rxrate:bytes)/$(attr:txrate:bytes)\\nPackets Rate: \" \\\n" \
+	"$(attr:txrate:bytes)\\nPackets Rate: $(attr:rxrate:packets)/" \
-	"        \"$(attr:rxrate:packets)/$(attr:txrate:packets)\\n\"\n" \
+	"$(attr:txrate:packets)\\n'\n" \
 	"    Item: eth0\n" \
 	"    Bytes Rate: 49130/2119\n" \
 	"    Packets Rate: 40/11\n" \

src/out_trigger.c

@@ -0,0 +1,197 @@
+/*
+ * out_trigger.c		Trigger based on traffic pattern
+ *
+ * Copyright (c) 2018 Babak Farrokhi <babak@farrokhi.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <bmon/bmon.h>
+#include <bmon/graph.h>
+#include <bmon/conf.h>
+#include <bmon/output.h>
+#include <bmon/group.h>
+#include <bmon/element.h>
+#include <bmon/input.h>
+#include <bmon/utils.h>
+#include <bmon/attr.h>
+
+#define RECENT_SIZE 3
+
+static int c_quit_after_trigger = 0;
+static long c_threshold_high = -1;
+static long c_threshold_low = -1;
+static unsigned long recent_l[RECENT_SIZE];
+static unsigned long recent_count = 0;
+static unsigned long recent_avg = 0;
+static unsigned long triggered = 0;
+static char *c_format;
+static FILE *c_fd;
+
+static char *get_token(struct element_group *g, struct element *e,
+		       const char *token, char *buf, size_t len)
+{
+	char *name = strchr(token, ':');
+
+	struct attr_def *def;
+	struct attr *a;
+
+	if (!name)
+		quit("Invalid attribute field \"%s\"\n", token);
+
+	name++;
+
+	def = attr_def_lookup(name);
+	if (!def)
+		quit("Undefined attribute \"%s\"\n", name);
+
+	if (!(a = attr_lookup(e, def->ad_id)))
+		quit("Invalid attribute \"%s\"\n", name);
+
+	if (!strncasecmp(token, "rxrate:", 7)) {
+		snprintf(buf, len, "%.2f", a->a_rx_rate.r_rate);
+		return buf;
+	} else if (!strncasecmp(token, "txrate:", 7)) {
+		snprintf(buf, len, "%.2f", a->a_tx_rate.r_rate);
+		return buf;
+	}
+
+	quit("Unknown field \"%s\"\n", token);
+
+	return NULL;
+}
+
+static void run_trigger()
+{
+	// TODO: Run the command
+	if (++triggered >= c_quit_after_trigger)
+		exit(0);
+}
+
+static void trigger_check()
+{
+	if (recent_count < RECENT_SIZE)
+		return;
+
+	if (c_threshold_high > 0 && recent_avg > c_threshold_high) {
+		fprintf(c_fd, "TRIGGER: Passed high threshold: %li > %li\n", recent_avg, c_threshold_high);
+		run_trigger();
+		return;
+	}
+	if (c_threshold_low > 0 && recent_avg < c_threshold_low) {
+		fprintf(c_fd, "TRIGGER: Droppped below threshold: %li < %li\n", recent_avg, c_threshold_low);
+		run_trigger();
+		return;
+	}
+}
+
+static void trigger_process(struct element_group *g, struct element *e, void *arg)
+{
+	char buf[128];
+	char *p;
+
+	p = get_token(g, e, c_format, buf, sizeof(buf));
+
+	if (p)
+	{
+		int i;
+		unsigned long total = 0;
+
+		recent_l[recent_count % RECENT_SIZE] = strtol(p, NULL, 0);
+		for (i=0; i < RECENT_SIZE; i++)
+		{
+			fprintf(c_fd, "%li ", recent_l[i]);
+			total += recent_l[i];
+		}
+
+		recent_avg = (unsigned long) total / RECENT_SIZE;
+		fprintf(c_fd, " avg: %li\n", recent_avg);
+		trigger_check();
+		recent_count++;
+	}
+}
+
+static void trigger_do(void)
+{
+	group_foreach_recursive(trigger_process, NULL);
+	fflush(stdout);
+}
+
+static void print_help(void)
+{
+	printf(
+	"trigger - Run actions based on traffic patterns\n" \
+	"\n" \
+	"  Monitors a given probe and triggers an action if the criteria is met.\n" \
+	"  Criterias could be going above or dropping below a given threshold of traffic.\n" \
+	"  Probes could be Bytes/sec or Packets/sec on TX or RX\n" \
+	"\n" \
+	"\n" \
+	"  Author: Babak Farrokhi <babak@farrokhi.net>\n" \
+	"\n" \
+	"  Options:\n" \
+	"    probe=ELEMENT     Element to monitor for threshold\n" \
+	"    action=PROGRAM    Program or script to run when triggered\n" \
+	"    below=THRESHOLD   Minimum acceptable level for given element (average in past three seconds)\n" \
+	"    above=THRESHOLD   Maximum acceptable level for given element (average in past three seconds)\n" \
+	"    quittriggers=NUM  Quit after NUM triggers\n" \
+	"\n" \
+	"  Probe Elements:\n" \
+	"    rxrate:packets    RX packet rate\n" \
+	"    txrate:packets    TX packet rate\n" \
+	"    rxrate:bytes      RX traffic rate (bytes)\n" \
+	"    txrate:bytes      TX traffic rate (bytes)\n" \
+	"\n" \
+	"  Examples:\n" \
+	"    bmon -p eth0 -o 'trigger:probe=rxrate:packets;below=5000;quittriggers=3;action=/opt/bin/alert'\n" \
+	"\n");
+}
+
+static void trigger_parse_opt(const char *type, const char *value)
+{
+	if (!strcasecmp(type, "above") && value)
+		c_threshold_high = strtol(value, NULL, 0);
+	else if (!strcasecmp(type, "below") && value)
+		c_threshold_low = strtol(value, NULL, 0);
+	else if (!strcasecmp(type, "quittriggers") && value)
+		c_quit_after_trigger = strtol(value, NULL, 0);
+	else if (!strcasecmp(type, "probe")) {
+		if (c_format)
+			free(c_format);
+		c_format = strdup(value);
+	}
+	else if (!strcasecmp(type, "help")) {
+		print_help();
+		exit(0);
+	}
+}
+
+static struct bmon_module trigger_ops = {
+	.m_name		= "trigger",
+	.m_do		= trigger_do,
+	.m_parse_opt	= trigger_parse_opt,
+};
+
+static void __init ascii_init(void)
+{
+	c_fd = stdout;
+	c_format = strdup("$(rxrate:packets)\\n");
+
+	output_register(&trigger_ops);
+}

src/unit.c

@@ -28,7 +28,7 @@
 #include <bmon/utils.h>
 #include <bmon/unit.h>
 
-static struct unit *byte_unit, *bit_unit, *number_unit;
+static struct unit *byte_unit, *bit_unit;
 
 static LIST_HEAD(units);
 

src/utils.c

@@ -27,6 +27,11 @@
 #include <bmon/conf.h>
 #include <bmon/utils.h>
 
+#ifdef __MACH__
+#include <mach/clock.h>
+#include <mach/mach.h>
+#endif
+
 void *xcalloc(size_t n, size_t s)
 {
 	void *d = calloc(n, s);
@@ -112,12 +117,21 @@ int timestamp_is_negative(timestamp_t *ts)
 
 void update_timestamp(timestamp_t *dst)
 {
-	struct timeval tv;
+#ifdef __MACH__
+	clock_serv_t cclock;
+	mach_timespec_t tp;
 
-	gettimeofday(&tv, NULL);
+	host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &cclock);
+	clock_get_time(cclock, &tp);
+	mach_port_deallocate(mach_task_self(), cclock);
+#else
+	struct timespec tp;
 
-	dst->tv_sec = tv.tv_sec;
+	clock_gettime(CLOCK_MONOTONIC, &tp);
-	dst->tv_usec = tv.tv_usec;
+#endif
+
+	dst->tv_sec = tp.tv_sec;
+	dst->tv_usec = tp.tv_nsec / 1000;
 }
 
 void copy_timestamp(timestamp_t *ts1, timestamp_t *ts2)