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/*
* Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <Python.h>
#include <linux/sockios.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <linux/if.h>
#include <linux/version.h>
#include <unistd.h>
#include "../../arch/all/init.h"
// see: https://github.com/giampaolo/psutil/issues/659
#ifdef PSUTIL_ETHTOOL_MISSING_TYPES
#include <linux/types.h>
typedef __u64 u64;
typedef __u32 u32;
typedef __u16 u16;
typedef __u8 u8;
#endif
// Avoid redefinition of struct sysinfo with musl libc.
#define _LINUX_SYSINFO_H
#include <linux/ethtool.h>
// * defined in linux/ethtool.h but not always available (e.g. Android)
// * #ifdef check needed for old kernels, see:
// https://github.com/giampaolo/psutil/issues/2164
static inline uint32_t
psutil_ethtool_cmd_speed(const struct ethtool_cmd *ecmd) {
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 27)
return ecmd->speed;
#else
return (ecmd->speed_hi << 16) | ecmd->speed;
#endif
}
// May happen on old RedHat versions, see:
// https://github.com/giampaolo/psutil/issues/607
#ifndef DUPLEX_UNKNOWN
#define DUPLEX_UNKNOWN 0xff
#endif
// https://github.com/giampaolo/psutil/pull/2156
#ifndef SPEED_UNKNOWN
#define SPEED_UNKNOWN -1
#endif
// References:
// * https://github.com/dpaleino/wicd/blob/master/wicd/backends/be-ioctl.py
// * http://www.i-scream.org/libstatgrab/
PyObject*
psutil_net_if_duplex_speed(PyObject* self, PyObject* args) {
char *nic_name;
int sock = 0;
int ret;
int duplex;
__u32 uint_speed;
int speed;
struct ifreq ifr;
struct ethtool_cmd ethcmd;
PyObject *py_retlist = NULL;
if (! PyArg_ParseTuple(args, "s", &nic_name))
return NULL;
sock = socket(AF_INET, SOCK_DGRAM, 0);
if (sock == -1)
return psutil_PyErr_SetFromOSErrnoWithSyscall("socket()");
PSUTIL_STRNCPY(ifr.ifr_name, nic_name, sizeof(ifr.ifr_name));
// duplex and speed
memset(ðcmd, 0, sizeof ethcmd);
ethcmd.cmd = ETHTOOL_GSET;
ifr.ifr_data = (void *)ðcmd;
ret = ioctl(sock, SIOCETHTOOL, &ifr);
if (ret != -1) {
duplex = ethcmd.duplex;
// speed is returned from ethtool as a __u32 ranging from 0 to INT_MAX
// or SPEED_UNKNOWN (-1)
uint_speed = psutil_ethtool_cmd_speed(ðcmd);
if (uint_speed == (__u32)SPEED_UNKNOWN || uint_speed > INT_MAX) {
speed = 0;
}
else {
speed = (int)uint_speed;
}
}
else {
if ((errno == EOPNOTSUPP) || (errno == EINVAL)) {
// EOPNOTSUPP may occur in case of wi-fi cards.
// For EINVAL see:
// https://github.com/giampaolo/psutil/issues/797
// #issuecomment-202999532
duplex = DUPLEX_UNKNOWN;
speed = 0;
}
else {
psutil_PyErr_SetFromOSErrnoWithSyscall("ioctl(SIOCETHTOOL)");
goto error;
}
}
py_retlist = Py_BuildValue("[ii]", duplex, speed);
if (!py_retlist)
goto error;
close(sock);
return py_retlist;
error:
if (sock != -1)
close(sock);
return NULL;
}
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