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/* Copyright (c) 2018, Linaro Limited
* Copyright (c) 2019-2020, Nokia
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <odp_posix_extensions.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <linux/ethtool.h>
#include <linux/if_packet.h>
#include <linux/sockios.h>
#include <errno.h>
#include <odp_debug_internal.h>
#include <odp_errno_define.h>
#include <odp_socket_common.h>
#include <protocols/eth.h>
/**
* ODP_PACKET_SOCKET_MMSG:
* ODP_PACKET_SOCKET_MMAP:
* ODP_PACKET_NETMAP:
*/
int mac_addr_get_fd(int fd, const char *name, unsigned char mac_dst[])
{
struct ifreq ethreq;
int ret;
memset(ðreq, 0, sizeof(ethreq));
snprintf(ethreq.ifr_name, IF_NAMESIZE, "%s", name);
ret = ioctl(fd, SIOCGIFHWADDR, ðreq);
if (ret != 0) {
__odp_errno = errno;
ODP_ERR("ioctl(SIOCGIFHWADDR): %s: \"%s\".\n", strerror(errno),
ethreq.ifr_name);
return -1;
}
memcpy(mac_dst, (unsigned char *)ethreq.ifr_ifru.ifru_hwaddr.sa_data,
ETH_ALEN);
return 0;
}
/*
* ODP_PACKET_SOCKET_MMSG:
* ODP_PACKET_SOCKET_MMAP:
* ODP_PACKET_NETMAP:
*/
uint32_t mtu_get_fd(int fd, const char *name)
{
struct ifreq ifr;
int ret;
snprintf(ifr.ifr_name, IF_NAMESIZE, "%s", name);
ret = ioctl(fd, SIOCGIFMTU, &ifr);
if (ret < 0) {
__odp_errno = errno;
ODP_DBG("ioctl(SIOCGIFMTU): %s: \"%s\".\n", strerror(errno),
ifr.ifr_name);
return 0;
}
return ifr.ifr_mtu + _ODP_ETHHDR_LEN;
}
/*
* ODP_PACKET_NETMAP:
*/
int mtu_set_fd(int fd, const char *name, int mtu)
{
struct ifreq ifr;
int ret;
snprintf(ifr.ifr_name, IF_NAMESIZE, "%s", name);
ifr.ifr_mtu = mtu;
ret = ioctl(fd, SIOCSIFMTU, &ifr);
if (ret < 0) {
__odp_errno = errno;
ODP_DBG("ioctl(SIOCSIFMTU): %s: \"%s\".\n", strerror(errno),
ifr.ifr_name);
return -1;
}
return 0;
}
/*
* ODP_PACKET_SOCKET_MMSG:
* ODP_PACKET_SOCKET_MMAP:
* ODP_PACKET_NETMAP:
*/
int promisc_mode_set_fd(int fd, const char *name, int enable)
{
struct ifreq ifr;
int ret;
snprintf(ifr.ifr_name, IF_NAMESIZE, "%s", name);
ret = ioctl(fd, SIOCGIFFLAGS, &ifr);
if (ret < 0) {
__odp_errno = errno;
ODP_DBG("ioctl(SIOCGIFFLAGS): %s: \"%s\".\n", strerror(errno),
ifr.ifr_name);
return -1;
}
if (enable)
ifr.ifr_flags |= IFF_PROMISC;
else
ifr.ifr_flags &= ~(IFF_PROMISC);
ret = ioctl(fd, SIOCSIFFLAGS, &ifr);
if (ret < 0) {
__odp_errno = errno;
ODP_DBG("ioctl(SIOCSIFFLAGS): %s: \"%s\".\n", strerror(errno),
ifr.ifr_name);
return -1;
}
return 0;
}
/*
* ODP_PACKET_SOCKET_MMSG:
* ODP_PACKET_SOCKET_MMAP:
* ODP_PACKET_NETMAP:
*/
int promisc_mode_get_fd(int fd, const char *name)
{
struct ifreq ifr;
int ret;
snprintf(ifr.ifr_name, IF_NAMESIZE, "%s", name);
ret = ioctl(fd, SIOCGIFFLAGS, &ifr);
if (ret < 0) {
__odp_errno = errno;
ODP_DBG("ioctl(SIOCGIFFLAGS): %s: \"%s\".\n", strerror(errno),
ifr.ifr_name);
return -1;
}
return !!(ifr.ifr_flags & IFF_PROMISC);
}
int link_status_fd(int fd, const char *name)
{
struct ifreq ifr;
int ret;
snprintf(ifr.ifr_name, IF_NAMESIZE, "%s", name);
ret = ioctl(fd, SIOCGIFFLAGS, &ifr);
if (ret < 0) {
__odp_errno = errno;
ODP_DBG("ioctl(SIOCGIFFLAGS): %s: \"%s\".\n", strerror(errno),
ifr.ifr_name);
return ODP_PKTIO_LINK_STATUS_UNKNOWN;
}
if (ifr.ifr_flags & IFF_RUNNING)
return ODP_PKTIO_LINK_STATUS_UP;
return ODP_PKTIO_LINK_STATUS_DOWN;
}
int link_info_fd(int fd, const char *name, odp_pktio_link_info_t *info)
{
struct ethtool_link_settings hcmd = {.cmd = ETHTOOL_GLINKSETTINGS};
struct ethtool_link_settings *ecmd;
struct ethtool_pauseparam pcmd = {.cmd = ETHTOOL_GPAUSEPARAM};
struct ifreq ifr;
int status;
status = link_status_fd(fd, name);
if (status < 0)
return -1;
snprintf(ifr.ifr_name, IF_NAMESIZE, "%s", name);
/* Link pause status */
ifr.ifr_data = (void *)&pcmd;
if (ioctl(fd, SIOCETHTOOL, &ifr) && errno != EOPNOTSUPP) {
__odp_errno = errno;
ODP_ERR("ioctl(SIOCETHTOOL): %s: \"%s\".\n", strerror(errno),
ifr.ifr_name);
return -1;
}
/* Try to perform handshake and fall back to old API if failed */
ifr.ifr_data = (void *)&hcmd;
if (ioctl(fd, SIOCETHTOOL, &ifr) < 0) {
struct ethtool_cmd ecmd_old = {.cmd = ETHTOOL_GSET};
ifr.ifr_data = (void *)&ecmd_old;
if (ioctl(fd, SIOCETHTOOL, &ifr) < 0) {
__odp_errno = errno;
ODP_ERR("ioctl(SIOCETHTOOL): %s: \"%s\".\n", strerror(errno), ifr.ifr_name);
return -1;
}
memset(info, 0, sizeof(odp_pktio_link_info_t));
info->speed = ethtool_cmd_speed(&ecmd_old);
if (info->speed == (uint32_t)SPEED_UNKNOWN)
info->speed = ODP_PKTIO_LINK_SPEED_UNKNOWN;
if (ecmd_old.autoneg == AUTONEG_ENABLE)
info->autoneg = ODP_PKTIO_LINK_AUTONEG_ON;
else if (ecmd_old.autoneg == AUTONEG_DISABLE)
info->autoneg = ODP_PKTIO_LINK_AUTONEG_OFF;
else
info->autoneg = ODP_PKTIO_LINK_AUTONEG_UNKNOWN;
if (ecmd_old.duplex == DUPLEX_HALF)
info->duplex = ODP_PKTIO_LINK_DUPLEX_HALF;
else if (ecmd_old.duplex == DUPLEX_FULL)
info->duplex = ODP_PKTIO_LINK_DUPLEX_FULL;
else
info->duplex = ODP_PKTIO_LINK_DUPLEX_UNKNOWN;
info->pause_rx = pcmd.rx_pause ? ODP_PKTIO_LINK_PAUSE_ON : ODP_PKTIO_LINK_PAUSE_OFF;
info->pause_tx = pcmd.tx_pause ? ODP_PKTIO_LINK_PAUSE_ON : ODP_PKTIO_LINK_PAUSE_OFF;
if (ecmd_old.port == PORT_TP)
info->media = "copper";
else if (ecmd_old.port == PORT_FIBRE)
info->media = "fiber";
else if (ecmd_old.port == PORT_OTHER)
info->media = "other";
else
info->media = "unknown";
info->status = status;
return 0;
}
if (hcmd.link_mode_masks_nwords >= 0 || hcmd.cmd != ETHTOOL_GLINKSETTINGS) {
ODP_ERR("ETHTOOL_GLINKSETTINGS handshake failed\n");
return -1;
}
/* Absolute value indicates kernel recommended 'link_mode_masks_nwords' value. */
hcmd.link_mode_masks_nwords = -hcmd.link_mode_masks_nwords;
/* Reserve space for the three bitmasks (map_supported, map_advertising, map_lp_advertising)
* at the end of struct ethtool_link_settings. 'link_mode_masks_nwords' defines the bitmask
* length in 32-bit words. */
uint8_t ODP_ALIGNED_CACHE data[offsetof(struct ethtool_link_settings, link_mode_masks) +
(3 * sizeof(uint32_t) * hcmd.link_mode_masks_nwords)];
ecmd = (void *)data;
*ecmd = hcmd;
ifr.ifr_data = (void *)ecmd;
if (ioctl(fd, SIOCETHTOOL, &ifr) < 0) {
__odp_errno = errno;
ODP_ERR("ioctl(SIOCETHTOOL): %s: \"%s\".\n", strerror(errno),
ifr.ifr_name);
return -1;
}
memset(info, 0, sizeof(odp_pktio_link_info_t));
if (ecmd->speed == (uint32_t)SPEED_UNKNOWN)
info->speed = ODP_PKTIO_LINK_SPEED_UNKNOWN;
else
info->speed = ecmd->speed;
if (ecmd->autoneg == AUTONEG_ENABLE)
info->autoneg = ODP_PKTIO_LINK_AUTONEG_ON;
else if (ecmd->autoneg == AUTONEG_DISABLE)
info->autoneg = ODP_PKTIO_LINK_AUTONEG_OFF;
else
info->autoneg = ODP_PKTIO_LINK_AUTONEG_UNKNOWN;
if (ecmd->duplex == DUPLEX_HALF)
info->duplex = ODP_PKTIO_LINK_DUPLEX_HALF;
else if (ecmd->duplex == DUPLEX_FULL)
info->duplex = ODP_PKTIO_LINK_DUPLEX_FULL;
else
info->duplex = ODP_PKTIO_LINK_DUPLEX_UNKNOWN;
info->pause_rx = pcmd.rx_pause ? ODP_PKTIO_LINK_PAUSE_ON : ODP_PKTIO_LINK_PAUSE_OFF;
info->pause_tx = pcmd.tx_pause ? ODP_PKTIO_LINK_PAUSE_ON : ODP_PKTIO_LINK_PAUSE_OFF;
if (ecmd->port == PORT_TP)
info->media = "copper";
else if (ecmd->port == PORT_FIBRE)
info->media = "fiber";
else if (ecmd->port == PORT_OTHER)
info->media = "other";
else
info->media = "unknown";
info->status = status;
return 0;
}
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