[PYTHON-ETHTOOL]: Create repository

From code in fedora's rhpl. Code indented, offload methods (tso, etc) added.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

6 files changed, 1355 insertions, 0 deletions

diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..a43ea21
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,339 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+                          675 Mass Ave, Cambridge, MA 02139, USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
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+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
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+		     END OF TERMS AND CONDITIONS
+
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+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
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+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) 19yy  <name of author>
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+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
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+    (at your option) any later version.
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+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
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+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
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+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
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+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
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+You should also get your employer (if you work as a programmer) or your
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+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..2f4c484
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,41 @@
+PKGNAME = python-ethtool
+VERSION = $(shell grep version setup.py | cut -f 2 -d \' )
+TAG = $(PKGNAME)-$(VERSION)
+GITURL = git://git.kernel.org/pub/scm/linux/kernel/git/acme/$(PKGNAME).git
+
+all:
+
+clean:
+	-rm *.tar.gz python-ethtool/*.pyc
+	-rm -r dist MANIFEST
+	python setup.py -q clean --all
+
+install: all
+	python setup.py install --root=$(DESTDIR)
+
+tag:
+	git tag $(TAG)
+
+push:
+	@git tag -l | grep -q $(TAG) && \
+	    git push origin $(TAG) || \
+	    echo Not tagged.
+
+archive:
+	@rm -rf /tmp/${PKGNAME}-$(VERSION) /tmp/${PKGNAME}
+	@cd /tmp; git clone -q $(GITURL) $(PKGNAME)
+	@mv /tmp/${PKGNAME} /tmp/${PKGNAME}-$(VERSION)
+	@cd /tmp/${PKGNAME}-$(VERSION) ; git checkout $(TAG)
+	@cd /tmp/${PKGNAME}-$(VERSION) ; python setup.py -q sdist
+	@cp /tmp/${PKGNAME}-$(VERSION)/dist/${PKGNAME}-$(VERSION).tar.gz .
+	@rm -rf /tmp/${PKGNAME}-$(VERSION)
+	@echo "The archive is in ${PKGNAME}-$(VERSION).tar.gz"
+
+local:
+	@rm -rf ${PKGNAME}-$(VERSION).tar.gz
+	@rm -rf /tmp/${PKGNAME}-$(VERSION) /tmp/${PKGNAME}
+	@dir=$$PWD; cp -a $$dir /tmp/${PKGNAME}-$(VERSION)
+	@cd /tmp/${PKGNAME}-$(VERSION) ; python setup.py -q sdist
+	@cp /tmp/${PKGNAME}-$(VERSION)/dist/${PKGNAME}-$(VERSION).tar.gz .
+	@rm -rf /tmp/${PKGNAME}-$(VERSION)	
+	@echo "The archive is in ${PKGNAME}-$(VERSION).tar.gz"
diff --git a/python-ethtool.spec b/python-ethtool.spec
new file mode 100644
index 0000000..77137b6
--- /dev/null
+++ b/python-ethtool.spec
@@ -0,0 +1,33 @@
+%{!?python_sitearch: %define python_sitearch %(%{__python} -c "from distutils.sysconfig import get_python_lib; print get_python_lib(1)")}
+
+Summary: ethtool python bindings
+Name: python-ethtool
+Version: 0.1
+Release: 1
+Source0: %{name}-%{version}.tar.bz2
+License: GPLv2+
+Group: System Environment/Libraries
+BuildRequires: python-devel
+BuildRoot:  %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
+
+%description
+ethtool python bindings
+
+%prep
+%setup -q
+
+%install
+rm -rf $RPM_BUILD_ROOT
+make DESTDIR=${RPM_BUILD_ROOT} install
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+%files
+%defattr(-,root,root)
+%doc COPYING
+%{python_sitearch}/ethtool.so
+
+%changelog
+* Tue Dec 18 2007 Arnaldo Carvalho de Melo <acme@redhat.com> - 0.1-1
+- Get ethtool code from rhpl 0.212
diff --git a/python-ethtool/ethtool-copy.h b/python-ethtool/ethtool-copy.h
new file mode 100644
index 0000000..e5b7832
--- /dev/null
+++ b/python-ethtool/ethtool-copy.h
@@ -0,0 +1,373 @@
+/*
+ * ethtool.h: Defines for Linux ethtool.
+ *
+ * Copyright (C) 1998 David S. Miller (davem@redhat.com)
+ * Copyright 2001 Jeff Garzik <jgarzik@mandrakesoft.com>
+ * Portions Copyright 2001 Sun Microsystems (thockin@sun.com)
+ * Portions Copyright 2002 Intel (eli.kupermann@intel.com,
+ *                                christopher.leech@intel.com,
+ *                                scott.feldman@intel.com)
+ */
+
+#ifndef _LINUX_ETHTOOL_H
+#define _LINUX_ETHTOOL_H
+
+#ifndef __unused
+#define __unused __attribute__ ((unused))
+#endif
+
+/* This should work for both 32 and 64 bit userland. */
+struct ethtool_cmd {
+	u32	cmd;
+	u32	supported;	/* Features this interface supports */
+	u32	advertising;	/* Features this interface advertises */
+	u16	speed;		/* The forced speed, 10Mb, 100Mb, gigabit */
+	u8	duplex;		/* Duplex, half or full */
+	u8	port;		/* Which connector port */
+	u8	phy_address;
+	u8	transceiver;	/* Which tranceiver to use */
+	u8	autoneg;	/* Enable or disable autonegotiation */
+	u32	maxtxpkt;	/* Tx pkts before generating tx int */
+	u32	maxrxpkt;	/* Rx pkts before generating rx int */
+	u32	reserved[4];
+};
+
+#define ETHTOOL_BUSINFO_LEN	32
+/* these strings are set to whatever the driver author decides... */
+struct ethtool_drvinfo {
+	u32	cmd;
+	char	driver[32];	/* driver short name, "tulip", "eepro100" */
+	char	version[32];	/* driver version string */
+	char	fw_version[32];	/* firmware version string, if applicable */
+	char	bus_info[ETHTOOL_BUSINFO_LEN];	/* Bus info for this IF. */
+				/* For PCI devices, use pci_dev->slot_name. */
+	char	reserved1[32];
+	char	reserved2[16];
+	u32	n_stats;	/* number of u64's from ETHTOOL_GSTATS */
+	u32	testinfo_len;
+	u32	eedump_len;	/* Size of data from ETHTOOL_GEEPROM (bytes) */
+	u32	regdump_len;	/* Size of data from ETHTOOL_GREGS (bytes) */
+};
+
+#define SOPASS_MAX	6
+/* wake-on-lan settings */
+struct ethtool_wolinfo {
+	u32	cmd;
+	u32	supported;
+	u32	wolopts;
+	u8	sopass[SOPASS_MAX]; /* SecureOn(tm) password */
+};
+
+/* for passing single values */
+struct ethtool_value {
+	u32	cmd;
+	u32	data;
+};
+
+/* for passing big chunks of data */
+struct ethtool_regs {
+	u32	cmd;
+	u32	version; /* driver-specific, indicates different chips/revs */
+	u32	len; /* bytes */
+	u8	data[0];
+};
+
+/* for passing EEPROM chunks */
+struct ethtool_eeprom {
+	u32	cmd;
+	u32	magic;
+	u32	offset; /* in bytes */
+	u32	len; /* in bytes */
+	u8	data[0];
+};
+
+/* for configuring coalescing parameters of chip */
+struct ethtool_coalesce {
+	u32	cmd;	/* ETHTOOL_{G,S}COALESCE */
+
+	/* How many usecs to delay an RX interrupt after
+	 * a packet arrives.  If 0, only rx_max_coalesced_frames
+	 * is used.
+	 */
+	u32	rx_coalesce_usecs;
+
+	/* How many packets to delay an RX interrupt after
+	 * a packet arrives.  If 0, only rx_coalesce_usecs is
+	 * used.  It is illegal to set both usecs and max frames
+	 * to zero as this would cause RX interrupts to never be
+	 * generated.
+	 */
+	u32	rx_max_coalesced_frames;
+
+	/* Same as above two parameters, except that these values
+	 * apply while an IRQ is being services by the host.  Not
+	 * all cards support this feature and the values are ignored
+	 * in that case.
+	 */
+	u32	rx_coalesce_usecs_irq;
+	u32	rx_max_coalesced_frames_irq;
+
+	/* How many usecs to delay a TX interrupt after
+	 * a packet is sent.  If 0, only tx_max_coalesced_frames
+	 * is used.
+	 */
+	u32	tx_coalesce_usecs;
+
+	/* How many packets to delay a TX interrupt after
+	 * a packet is sent.  If 0, only tx_coalesce_usecs is
+	 * used.  It is illegal to set both usecs and max frames
+	 * to zero as this would cause TX interrupts to never be
+	 * generated.
+	 */
+	u32	tx_max_coalesced_frames;
+
+	/* Same as above two parameters, except that these values
+	 * apply while an IRQ is being services by the host.  Not
+	 * all cards support this feature and the values are ignored
+	 * in that case.
+	 */
+	u32	tx_coalesce_usecs_irq;
+	u32	tx_max_coalesced_frames_irq;
+
+	/* How many usecs to delay in-memory statistics
+	 * block updates.  Some drivers do not have an in-memory
+	 * statistic block, and in such cases this value is ignored.
+	 * This value must not be zero.
+	 */
+	u32	stats_block_coalesce_usecs;
+
+	/* Adaptive RX/TX coalescing is an algorithm implemented by
+	 * some drivers to improve latency under low packet rates and
+	 * improve throughput under high packet rates.  Some drivers
+	 * only implement one of RX or TX adaptive coalescing.  Anything
+	 * not implemented by the driver causes these values to be
+	 * silently ignored.
+	 */
+	u32	use_adaptive_rx_coalesce;
+	u32	use_adaptive_tx_coalesce;
+
+	/* When the packet rate (measured in packets per second)
+	 * is below pkt_rate_low, the {rx,tx}_*_low parameters are
+	 * used.
+	 */
+	u32	pkt_rate_low;
+	u32	rx_coalesce_usecs_low;
+	u32	rx_max_coalesced_frames_low;
+	u32	tx_coalesce_usecs_low;
+	u32	tx_max_coalesced_frames_low;
+
+	/* When the packet rate is below pkt_rate_high but above
+	 * pkt_rate_low (both measured in packets per second) the
+	 * normal {rx,tx}_* coalescing parameters are used.
+	 */
+
+	/* When the packet rate is (measured in packets per second)
+	 * is above pkt_rate_high, the {rx,tx}_*_high parameters are
+	 * used.
+	 */
+	u32	pkt_rate_high;
+	u32	rx_coalesce_usecs_high;
+	u32	rx_max_coalesced_frames_high;
+	u32	tx_coalesce_usecs_high;
+	u32	tx_max_coalesced_frames_high;
+
+	/* How often to do adaptive coalescing packet rate sampling,
+	 * measured in seconds.  Must not be zero.
+	 */
+	u32	rate_sample_interval;
+};
+
+/* for configuring RX/TX ring parameters */
+struct ethtool_ringparam {
+	u32	cmd;	/* ETHTOOL_{G,S}RINGPARAM */
+
+	/* Read only attributes.  These indicate the maximum number
+	 * of pending RX/TX ring entries the driver will allow the
+	 * user to set.
+	 */
+	u32	rx_max_pending;
+	u32	rx_mini_max_pending;
+	u32	rx_jumbo_max_pending;
+	u32	tx_max_pending;
+
+	/* Values changeable by the user.  The valid values are
+	 * in the range 1 to the "*_max_pending" counterpart above.
+	 */
+	u32	rx_pending;
+	u32	rx_mini_pending;
+	u32	rx_jumbo_pending;
+	u32	tx_pending;
+};
+
+/* for configuring link flow control parameters */
+struct ethtool_pauseparam {
+	u32	cmd;	/* ETHTOOL_{G,S}PAUSEPARAM */
+
+	/* If the link is being auto-negotiated (via ethtool_cmd.autoneg
+	 * being true) the user may set 'autonet' here non-zero to have the
+	 * pause parameters be auto-negotiated too.  In such a case, the
+	 * {rx,tx}_pause values below determine what capabilities are
+	 * advertised.
+	 *
+	 * If 'autoneg' is zero or the link is not being auto-negotiated,
+	 * then {rx,tx}_pause force the driver to use/not-use pause
+	 * flow control.
+	 */
+	u32	autoneg;
+	u32	rx_pause;
+	u32	tx_pause;
+};
+
+#define ETH_GSTRING_LEN		32
+enum ethtool_stringset {
+	ETH_SS_TEST		= 0,
+	ETH_SS_STATS,
+};
+
+/* for passing string sets for data tagging */
+struct ethtool_gstrings {
+	u32	cmd;		/* ETHTOOL_GSTRINGS */
+	u32	string_set;	/* string set id e.c. ETH_SS_TEST, etc*/
+	u32	len;		/* number of strings in the string set */
+	u8	data[0];
+};
+
+enum ethtool_test_flags {
+	ETH_TEST_FL_OFFLINE	= (1 << 0),	/* online / offline */
+	ETH_TEST_FL_FAILED	= (1 << 1),	/* test passed / failed */
+};
+
+/* for requesting NIC test and getting results*/
+struct ethtool_test {
+	u32	cmd;		/* ETHTOOL_TEST */
+	u32	flags;		/* ETH_TEST_FL_xxx */
+	u32	reserved;
+	u32	len;		/* result length, in number of u64 elements */
+	u64	data[0];
+};
+
+/* for dumping NIC-specific statistics */
+struct ethtool_stats {
+	u32	cmd;		/* ETHTOOL_GSTATS */
+	u32	n_stats;	/* number of u64's being returned */
+	u64	data[0];
+};
+
+/* CMDs currently supported */
+#define ETHTOOL_GSET		0x00000001 /* Get settings. */
+#define ETHTOOL_SSET		0x00000002 /* Set settings, privileged. */
+#define ETHTOOL_GDRVINFO	0x00000003 /* Get driver info. */
+#define ETHTOOL_GREGS		0x00000004 /* Get NIC registers, privileged. */
+#define ETHTOOL_GWOL		0x00000005 /* Get wake-on-lan options. */
+#define ETHTOOL_SWOL		0x00000006 /* Set wake-on-lan options, priv. */
+#define ETHTOOL_GMSGLVL		0x00000007 /* Get driver message level */
+#define ETHTOOL_SMSGLVL		0x00000008 /* Set driver msg level, priv. */
+#define ETHTOOL_NWAY_RST	0x00000009 /* Restart autonegotiation, priv. */
+#define ETHTOOL_GLINK		0x0000000a /* Get link status (ethtool_value) */
+#define ETHTOOL_GEEPROM		0x0000000b /* Get EEPROM data */
+#define ETHTOOL_SEEPROM		0x0000000c /* Set EEPROM data, priv. */
+#define ETHTOOL_GCOALESCE	0x0000000e /* Get coalesce config */
+#define ETHTOOL_SCOALESCE	0x0000000f /* Set coalesce config, priv. */
+#define ETHTOOL_GRINGPARAM	0x00000010 /* Get ring parameters */
+#define ETHTOOL_SRINGPARAM	0x00000011 /* Set ring parameters, priv. */
+#define ETHTOOL_GPAUSEPARAM	0x00000012 /* Get pause parameters */
+#define ETHTOOL_SPAUSEPARAM	0x00000013 /* Set pause parameters, priv. */
+#define ETHTOOL_GRXCSUM		0x00000014 /* Get RX hw csum enable (ethtool_value) */
+#define ETHTOOL_SRXCSUM		0x00000015 /* Set RX hw csum enable (ethtool_value) */
+#define ETHTOOL_GTXCSUM		0x00000016 /* Get TX hw csum enable (ethtool_value) */
+#define ETHTOOL_STXCSUM		0x00000017 /* Set TX hw csum enable (ethtool_value) */
+#define ETHTOOL_GSG		0x00000018 /* Get scatter-gather enable
+					    * (ethtool_value) */
+#define ETHTOOL_SSG		0x00000019 /* Set scatter-gather enable
+					    * (ethtool_value), priv. */
+#define ETHTOOL_TEST		0x0000001a /* execute NIC self-test, priv. */
+#define ETHTOOL_GSTRINGS	0x0000001b /* get specified string set */
+#define ETHTOOL_PHYS_ID		0x0000001c /* identify the NIC */
+#define ETHTOOL_GSTATS		0x0000001d /* get NIC-specific statistics */
+#define ETHTOOL_GTSO		0x0000001e /* Get TSO enable (ethtool_value) */
+#define ETHTOOL_STSO		0x0000001f /* Set TSO enable (ethtool_value) */
+#define ETHTOOL_GUFO		0x00000021 /* Get UFO enable (ethtool_value) */
+#define ETHTOOL_SUFO		0x00000022 /* Set UFO enable (ethtool_value) */
+#define ETHTOOL_GGSO		0x00000023 /* Get GSO enable (ethtool_value) */
+#define ETHTOOL_SGSO		0x00000024 /* Set GSO enable (ethtool_value) */
+
+/* compatibility with older code */
+#define SPARC_ETH_GSET		ETHTOOL_GSET
+#define SPARC_ETH_SSET		ETHTOOL_SSET
+
+/* Indicates what features are supported by the interface. */
+#define SUPPORTED_10baseT_Half		(1 << 0)
+#define SUPPORTED_10baseT_Full		(1 << 1)
+#define SUPPORTED_100baseT_Half		(1 << 2)
+#define SUPPORTED_100baseT_Full		(1 << 3)
+#define SUPPORTED_1000baseT_Half	(1 << 4)
+#define SUPPORTED_1000baseT_Full	(1 << 5)
+#define SUPPORTED_Autoneg		(1 << 6)
+#define SUPPORTED_TP			(1 << 7)
+#define SUPPORTED_AUI			(1 << 8)
+#define SUPPORTED_MII			(1 << 9)
+#define SUPPORTED_FIBRE			(1 << 10)
+#define SUPPORTED_BNC			(1 << 11)
+#define SUPPORTED_10000baseT_Full	(1 << 12)
+
+/* Indicates what features are advertised by the interface. */
+#define ADVERTISED_10baseT_Half		(1 << 0)
+#define ADVERTISED_10baseT_Full		(1 << 1)
+#define ADVERTISED_100baseT_Half	(1 << 2)
+#define ADVERTISED_100baseT_Full	(1 << 3)
+#define ADVERTISED_1000baseT_Half	(1 << 4)
+#define ADVERTISED_1000baseT_Full	(1 << 5)
+#define ADVERTISED_Autoneg		(1 << 6)
+#define ADVERTISED_TP			(1 << 7)
+#define ADVERTISED_AUI			(1 << 8)
+#define ADVERTISED_MII			(1 << 9)
+#define ADVERTISED_FIBRE		(1 << 10)
+#define ADVERTISED_BNC			(1 << 11)
+#define ADVERTISED_10000baseT_Full	(1 << 12)
+
+/* The following are all involved in forcing a particular link
+ * mode for the device for setting things.  When getting the
+ * devices settings, these indicate the current mode and whether
+ * it was foced up into this mode or autonegotiated.
+ */
+
+/* The forced speed, 10Mb, 100Mb, gigabit, 10GbE. */
+#define SPEED_10		10
+#define SPEED_100		100
+#define SPEED_1000		1000
+#define SPEED_10000		10000
+
+/* Duplex, half or full. */
+#define DUPLEX_HALF		0x00
+#define DUPLEX_FULL		0x01
+
+/* Which connector port. */
+#define PORT_TP			0x00
+#define PORT_AUI		0x01
+#define PORT_MII		0x02
+#define PORT_FIBRE		0x03
+#define PORT_BNC		0x04
+
+/* Which tranceiver to use. */
+#define XCVR_INTERNAL		0x00
+#define XCVR_EXTERNAL		0x01
+#define XCVR_DUMMY1		0x02
+#define XCVR_DUMMY2		0x03
+#define XCVR_DUMMY3		0x04
+
+/* Enable or disable autonegotiation.  If this is set to enable,
+ * the forced link modes above are completely ignored.
+ */
+#define AUTONEG_DISABLE		0x00
+#define AUTONEG_ENABLE		0x01
+
+/* Wake-On-Lan options. */
+#define WAKE_PHY		(1 << 0)
+#define WAKE_UCAST		(1 << 1)
+#define WAKE_MCAST		(1 << 2)
+#define WAKE_BCAST		(1 << 3)
+#define WAKE_ARP		(1 << 4)
+#define WAKE_MAGIC		(1 << 5)
+#define WAKE_MAGICSECURE	(1 << 6) /* only meaningful if WAKE_MAGIC */
+
+#endif /* _LINUX_ETHTOOL_H */
diff --git a/python-ethtool/ethtool.c b/python-ethtool/ethtool.c
new file mode 100644
index 0000000..752d869
--- /dev/null
+++ b/python-ethtool/ethtool.c
@@ -0,0 +1,554 @@
+#include <Python.h>
+
+#include <errno.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+
+typedef unsigned long long u64;
+typedef __uint32_t u32;
+typedef __uint16_t u16;
+typedef __uint8_t u8;
+
+#include "ethtool-copy.h"
+#include <linux/sockios.h> /* for SIOCETHTOOL */
+
+#define _PATH_PROCNET_DEV "/proc/net/dev"
+
+static PyObject *get_active_devices(PyObject *self __unused, PyObject *args __unused)
+{
+	PyObject *list;
+	int numreqs = 30;
+	struct ifconf ifc;
+	struct ifreq *ifr;
+	int n;
+
+	/* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
+	   (as of 2.1.128) */
+	/* Open control socket. */
+	int skfd = socket(AF_INET, SOCK_DGRAM, 0);
+
+	if (skfd < 0) {
+		PyErr_SetString(PyExc_OSError, strerror(errno));
+		return NULL;
+	}
+
+	ifc.ifc_buf = NULL;
+	for (;;) {
+		ifc.ifc_len = sizeof(struct ifreq) * numreqs;
+		ifc.ifc_buf = realloc(ifc.ifc_buf, ifc.ifc_len);
+
+		if (ioctl(skfd, SIOCGIFCONF, &ifc) < 0) {
+			PyErr_SetString(PyExc_OSError, strerror(errno));
+			free(ifc.ifc_buf);
+			close(skfd);
+			return NULL;
+		}
+
+		if (ifc.ifc_len == (int)sizeof(struct ifreq) * numreqs) {
+			/* assume it overflowed and try again */
+			numreqs += 10;
+			continue;
+		}
+		break;
+	}
+
+	list = PyList_New(0);
+	ifr = ifc.ifc_req;
+	for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
+		if (!(ioctl(skfd, SIOCGIFFLAGS, ifr) < 0))
+			if (ifr->ifr_flags & IFF_UP)
+				PyList_Append(list, PyString_FromString(ifr->ifr_name));
+			ifr++;
+	}
+
+	free(ifc.ifc_buf);
+	close(skfd);
+
+	return list;
+}
+
+static PyObject *get_devices(PyObject *self __unused, PyObject *args __unused)
+{
+	char buffer[256];
+	char *ret;;
+	PyObject *list = PyList_New(0);
+	FILE *fd = fopen(_PATH_PROCNET_DEV, "r");
+
+	if (fd == NULL) {
+		PyErr_SetString(PyExc_OSError, strerror(errno));
+		return NULL;
+	}
+	/* skip over first two lines */
+	ret = fgets(buffer, 256, fd); ret = fgets(buffer, 256, fd);
+	while (!feof(fd)) {
+		char *name = buffer;
+		char *end = buffer;
+
+		if (fgets(buffer, 256, fd) == NULL)
+			break;
+		/* find colon */
+		while (end && *end != ':')
+			end++;
+		*end = 0; /* terminate where colon was */
+		while (*name == ' ')
+			name++; /* skip over leading whitespace if any */
+		PyList_Append(list, PyString_FromString(name));
+	}
+	fclose(fd);
+	return list;
+}
+
+static PyObject *get_hwaddress(PyObject *self __unused, PyObject *args)
+{
+	struct ethtool_cmd ecmd;
+	struct ifreq ifr;
+	int fd, err;
+	char *devname;
+	char hwaddr[20];
+
+	if (!PyArg_ParseTuple(args, "s", &devname))
+		return NULL;
+
+	/* Setup our control structures. */
+	memset(&ecmd, 0, sizeof(ecmd));
+	memset(&ifr, 0, sizeof(ifr));
+	strncpy(&ifr.ifr_name[0], devname, IFNAMSIZ);
+	ifr.ifr_name[IFNAMSIZ - 1] = 0;
+
+	/* Open control socket. */
+	fd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (fd < 0) {
+		PyErr_SetString(PyExc_OSError, strerror(errno));
+		return NULL;
+	}
+
+	/* Get current settings. */
+	err = ioctl(fd, SIOCGIFHWADDR, &ifr);
+	if (err < 0) {
+		char buf[2048];
+		int eno = errno;
+
+		snprintf(buf, sizeof(buf), "[Errno %d] %s", eno, strerror(eno));
+		PyErr_SetString(PyExc_IOError, buf);
+		close(fd);
+		return NULL;
+	}
+
+	close(fd);
+
+	sprintf(hwaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
+		(unsigned int)ifr.ifr_hwaddr.sa_data[0] % 256,
+		(unsigned int)ifr.ifr_hwaddr.sa_data[1] % 256,
+		(unsigned int)ifr.ifr_hwaddr.sa_data[2] % 256,
+		(unsigned int)ifr.ifr_hwaddr.sa_data[3] % 256,
+		(unsigned int)ifr.ifr_hwaddr.sa_data[4] % 256,
+		(unsigned int)ifr.ifr_hwaddr.sa_data[5] % 256);
+
+	return PyString_FromString(hwaddr);
+}
+
+static PyObject *get_ipaddress(PyObject *self __unused, PyObject *args)
+{
+	struct ethtool_cmd ecmd;
+	struct ifreq ifr;
+	int fd, err;
+	char *devname;
+	char ipaddr[20];
+
+	if (!PyArg_ParseTuple(args, "s", &devname))
+		return NULL;
+
+	/* Setup our control structures. */
+	memset(&ecmd, 0, sizeof(ecmd));
+	memset(&ifr, 0, sizeof(ifr));
+	strncpy(&ifr.ifr_name[0], devname, IFNAMSIZ);
+	ifr.ifr_name[IFNAMSIZ - 1] = 0;
+
+	/* Open control socket. */
+	fd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (fd < 0) {
+		PyErr_SetString(PyExc_OSError, strerror(errno));
+		return NULL;
+	}
+
+	/* Get current settings. */
+	err = ioctl(fd, SIOCGIFADDR, &ifr);
+	if (err < 0) {
+		char buf[2048];
+		int eno = errno;
+		snprintf(buf, sizeof(buf), "[Errno %d] %s", eno, strerror(eno));
+		PyErr_SetString(PyExc_IOError, buf);
+		close(fd);
+		return NULL;
+	}
+
+	close(fd);
+
+	sprintf(ipaddr, "%u.%u.%u.%u",
+		(unsigned int)ifr.ifr_addr.sa_data[2] % 256,
+		(unsigned int)ifr.ifr_addr.sa_data[3] % 256,
+		(unsigned int)ifr.ifr_addr.sa_data[4] % 256,
+		(unsigned int)ifr.ifr_addr.sa_data[5] % 256);
+
+	return PyString_FromString(ipaddr);
+}
+
+static PyObject *get_netmask (PyObject *self __unused, PyObject *args)
+{
+	struct ethtool_cmd ecmd;
+	struct ifreq ifr;
+	int fd, err;
+	char *devname;
+	char netmask[20];
+
+	if (!PyArg_ParseTuple(args, "s", &devname))
+		return NULL;
+
+	/* Setup our control structures. */
+	memset(&ecmd, 0, sizeof(ecmd));
+	memset(&ifr, 0, sizeof(ifr));
+	strncpy(&ifr.ifr_name[0], devname, IFNAMSIZ);
+	ifr.ifr_name[IFNAMSIZ - 1] = 0;
+
+	/* Open control socket. */
+	fd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (fd < 0) {
+		PyErr_SetString(PyExc_OSError, strerror(errno));
+		return NULL;
+	}
+
+	/* Get current settings. */
+	err = ioctl(fd, SIOCGIFNETMASK, &ifr);
+	if (err < 0) {
+		char buf[2048];
+		int eno = errno;
+		snprintf(buf, sizeof(buf), "[Errno %d] %s", eno, strerror(eno));
+		PyErr_SetString(PyExc_IOError, buf);
+		close(fd);
+		return NULL;
+	}
+
+	close(fd);
+
+	sprintf(netmask, "%u.%u.%u.%u",
+		(unsigned int)ifr.ifr_netmask.sa_data[2] % 256,
+		(unsigned int)ifr.ifr_netmask.sa_data[3] % 256,
+		(unsigned int)ifr.ifr_netmask.sa_data[4] % 256,
+		(unsigned int)ifr.ifr_netmask.sa_data[5] % 256);
+
+	return PyString_FromString(netmask);
+}
+
+static PyObject *get_broadcast(PyObject *self __unused, PyObject *args)
+{
+	struct ethtool_cmd ecmd;
+	struct ifreq ifr;
+	int fd, err;
+	char *devname;
+	char broadcast[20];
+
+	if (!PyArg_ParseTuple(args, "s", &devname))
+		return NULL;
+
+	/* Setup our control structures. */
+	memset(&ecmd, 0, sizeof(ecmd));
+	memset(&ifr, 0, sizeof(ifr));
+	strncpy(&ifr.ifr_name[0], devname, IFNAMSIZ);
+	ifr.ifr_name[IFNAMSIZ - 1] = 0;
+
+	/* Open control socket. */
+	fd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (fd < 0) {
+		PyErr_SetString(PyExc_OSError, strerror(errno));
+		return NULL;
+	}
+
+	/* Get current settings. */
+	err = ioctl(fd, SIOCGIFBRDADDR, &ifr);
+	if (err < 0) {
+		char buf[2048];
+		int eno = errno;
+		snprintf(buf, sizeof(buf), "[Errno %d] %s", eno, strerror(eno));
+		PyErr_SetString(PyExc_IOError, buf);
+		close(fd);
+		return NULL;
+	}
+
+	close(fd);
+
+	sprintf(broadcast, "%u.%u.%u.%u",
+		(unsigned int)ifr.ifr_broadaddr.sa_data[2] % 256,
+		(unsigned int)ifr.ifr_broadaddr.sa_data[3] % 256,
+		(unsigned int)ifr.ifr_broadaddr.sa_data[4] % 256,
+		(unsigned int)ifr.ifr_broadaddr.sa_data[5] % 256);
+
+	return PyString_FromString(broadcast);
+}
+
+static PyObject *get_module(PyObject *self __unused, PyObject *args)
+{
+	struct ethtool_cmd ecmd;
+	struct ifreq ifr;
+	int fd, err;
+	char buf[2048];
+	char *devname;
+
+	if (!PyArg_ParseTuple(args, "s", &devname))
+		return NULL;
+
+	/* Setup our control structures. */
+	memset(&ecmd, 0, sizeof(ecmd));
+	memset(&ifr, 0, sizeof(ifr));
+	strncpy(&ifr.ifr_name[0], devname, IFNAMSIZ);
+	ifr.ifr_name[IFNAMSIZ - 1] = 0;
+	ifr.ifr_data = (caddr_t) &buf;
+	ecmd.cmd = ETHTOOL_GDRVINFO;
+	memcpy(&buf, &ecmd, sizeof(ecmd));
+
+	/* Open control socket. */
+	fd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (fd < 0) {
+		PyErr_SetString(PyExc_OSError, strerror(errno));
+		return NULL;
+	}
+
+	/* Get current settings. */
+	err = ioctl(fd, SIOCETHTOOL, &ifr);
+
+	if (err < 0) {  /* failed? */
+		int eno = errno;
+		FILE *file;
+		int found = 0;
+		char driver[100], dev[100];
+		close(fd);
+
+		/* Before bailing, maybe it is a PCMCIA/PC Card? */
+		file = fopen("/var/lib/pcmcia/stab", "r");
+		if (file == NULL) {
+			sprintf(buf, "[Errno %d] %s", eno, strerror(eno));
+			PyErr_SetString(PyExc_IOError, buf);
+			return NULL;
+		}
+
+		while (!feof(file)) {
+			if (fgets(buf, 2048, file) == NULL)
+				break;
+			buf[2047] = '\0';
+			if (strncmp(buf, "Socket", 6) != 0) {
+				if (sscanf(buf, "%*d\t%*s\t%100s\t%*d\t%100s\n", driver, dev) > 0) {
+					driver[99] = '\0';
+					dev[99] = '\0';
+					if (strcmp(devname, dev) == 0) {
+						found = 1;
+						break;
+					}
+				}
+			}
+		}
+		fclose(file);
+		if (!found) {
+			sprintf(buf, "[Errno %d] %s", eno, strerror(eno));
+			PyErr_SetString(PyExc_IOError, buf);
+			return NULL;
+		} else
+			return PyString_FromString(driver);
+	}
+
+	close(fd);
+	return PyString_FromString(((struct ethtool_drvinfo *)buf)->driver);
+}
+
+static PyObject *get_businfo(PyObject *self __unused, PyObject *args)
+{
+	struct ethtool_cmd ecmd;
+	struct ifreq ifr;
+	int fd, err;
+	char buf[1024];
+	char *devname;
+
+	if (!PyArg_ParseTuple(args, "s", &devname))
+		return NULL;
+
+	/* Setup our control structures. */
+	memset(&ecmd, 0, sizeof(ecmd));
+	memset(&ifr, 0, sizeof(ifr));
+	strncpy(&ifr.ifr_name[0], devname, IFNAMSIZ);
+	ifr.ifr_name[IFNAMSIZ - 1] = 0;
+	ifr.ifr_data = (caddr_t) &buf;
+	ecmd.cmd = ETHTOOL_GDRVINFO;
+	memcpy(&buf, &ecmd, sizeof(ecmd));
+
+	/* Open control socket. */
+	fd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (fd < 0) {
+		PyErr_SetString(PyExc_OSError, strerror(errno));
+		return NULL;
+	}
+
+	/* Get current settings. */
+	err = ioctl(fd, SIOCETHTOOL, &ifr);
+
+	if (err < 0) {  /* failed? */
+		int eno = errno;
+		close(fd);
+
+		sprintf(buf, "[Errno %d] %s", eno, strerror(eno));
+		PyErr_SetString(PyExc_IOError, buf);
+		return NULL;
+	}
+
+	close(fd);
+	return PyString_FromString(((struct ethtool_drvinfo *)buf)->bus_info);
+}
+
+static int get_dev_int_value(int cmd, PyObject *args, int *value)
+{
+	struct ethtool_value eval;
+	struct ifreq ifr;
+	int fd, err;
+	char *devname;
+
+	if (!PyArg_ParseTuple(args, "s", &devname))
+		return -1;
+
+	/* Setup our control structures. */
+	memset(&ifr, 0, sizeof(ifr));
+	strncpy(&ifr.ifr_name[0], devname, IFNAMSIZ);
+	ifr.ifr_name[IFNAMSIZ - 1] = 0;
+	ifr.ifr_data = (caddr_t)&eval;
+	eval.cmd = cmd;
+
+	/* Open control socket. */
+	fd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (fd < 0) {
+		PyErr_SetString(PyExc_OSError, strerror(errno));
+		return -1;
+	}
+
+	/* Get current settings. */
+	err = ioctl(fd, SIOCETHTOOL, &ifr);
+	if (err < 0) {
+		char buf[2048];
+		sprintf(buf, "[Errno %d] %s", errno, strerror(errno));
+		PyErr_SetString(PyExc_IOError, buf);
+	}
+
+	close(fd);
+	*value = eval.data;
+
+	return err;
+}
+
+static PyObject *get_tso(PyObject *self __unused, PyObject *args)
+{
+	int value;
+
+	if (get_dev_int_value(ETHTOOL_GTSO, args, &value) < 0)
+		return NULL;
+
+	return Py_BuildValue("b", value);
+}
+
+static PyObject *get_ufo(PyObject *self __unused, PyObject *args)
+{
+	int value;
+
+	if (get_dev_int_value(ETHTOOL_GUFO, args, &value) < 0)
+		return NULL;
+
+	return Py_BuildValue("b", value);
+}
+
+static PyObject *get_gso(PyObject *self __unused, PyObject *args)
+{
+	int value;
+
+	if (get_dev_int_value(ETHTOOL_GGSO, args, &value) < 0)
+		return NULL;
+
+	return Py_BuildValue("b", value);
+}
+
+static PyObject *get_sg(PyObject *self __unused, PyObject *args)
+{
+	int value;
+
+	if (get_dev_int_value(ETHTOOL_GSG, args, &value) < 0)
+		return NULL;
+
+	return Py_BuildValue("b", value);
+}
+
+static struct PyMethodDef PyEthModuleMethods[] = {
+	{
+		.ml_name = "get_module",
+		.ml_meth = (PyCFunction)get_module,
+		.ml_flags = METH_VARARGS,
+	},
+	{
+		.ml_name = "get_businfo",
+		.ml_meth = (PyCFunction)get_businfo,
+		.ml_flags = METH_VARARGS,
+	},
+	{
+		.ml_name = "get_hwaddr",
+		.ml_meth = (PyCFunction)get_hwaddress,
+		.ml_flags = METH_VARARGS,
+	},
+	{
+		.ml_name = "get_ipaddr",
+		.ml_meth = (PyCFunction)get_ipaddress,
+		.ml_flags = METH_VARARGS,
+	},
+	{
+		.ml_name = "get_netmask",
+		.ml_meth = (PyCFunction)get_netmask,
+		.ml_flags = METH_VARARGS,
+	},
+	{
+		.ml_name = "get_broadcast",
+		.ml_meth = (PyCFunction)get_broadcast,
+		.ml_flags = METH_VARARGS,
+	},
+	{
+		.ml_name = "get_devices",
+		.ml_meth = (PyCFunction)get_devices,
+		.ml_flags = METH_VARARGS,
+	},
+	{
+		.ml_name = "get_active_devices",
+		.ml_meth = (PyCFunction)get_active_devices,
+		.ml_flags = METH_VARARGS,
+	},
+	{
+		.ml_name = "get_tso",
+		.ml_meth = (PyCFunction)get_tso,
+		.ml_flags = METH_VARARGS,
+	},
+	{
+		.ml_name = "get_ufo",
+		.ml_meth = (PyCFunction)get_ufo,
+		.ml_flags = METH_VARARGS,
+	},
+	{
+		.ml_name = "get_gso",
+		.ml_meth = (PyCFunction)get_gso,
+		.ml_flags = METH_VARARGS,
+	},
+	{
+		.ml_name = "get_sg",
+		.ml_meth = (PyCFunction)get_sg,
+		.ml_flags = METH_VARARGS,
+	},
+	{	.ml_name = NULL, },
+};
+
+PyMODINIT_FUNC initethtool(void)
+{
+	Py_InitModule("ethtool", PyEthModuleMethods);
+}
+
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..d78b7bb
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,15 @@
+#!/usr/bin/python2
+
+from distutils.core import setup, Extension
+
+ethtool = Extension('ethtool',
+		    sources = ['python-ethtool/ethtool.c'])
+
+# don't reformat this line, Makefile parses it
+setup(name='ethtool',
+      version='0.1',
+      description='Python module to interface with ethtool',
+      author='Harald Hoyer & Arnaldo Carvalho de Melo',
+      author_email='acme@redhat.com',
+      url='http://fedoraproject.org/wiki/python-ethtool',
+      ext_modules=[ethtool])