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/* Copyright (C) 2023 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* \file
*
* \author Lukas Sismis <lukas.sismis@gmail.com>
*/
#ifndef UTIL_DPDK_BONDING_C
#define UTIL_DPDK_BONDING_C
#include "suricata-common.h"
#include "util-dpdk-bonding.h"
#ifdef HAVE_DPDK
#include "util-dpdk.h"
#include "util-debug.h"
/**
* Determines if the port is Bond or not by evaluating device driver name
* @param pid port ID
* @return 0 - the device si Bond PMD, 1 - regular device, <0 error
*/
int32_t BondingIsBond(uint16_t pid)
{
struct rte_eth_dev_info di;
int32_t ret = rte_eth_dev_info_get(pid, &di);
if (ret < 0) {
SCLogError("%s: unable to get device info (err: %s)", DPDKGetPortNameByPortID(pid),
rte_strerror(-ret));
return ret;
}
return strcmp(di.driver_name, "net_bonding") == 0 ? 0 : 1;
}
uint16_t BondingMemberDevicesGet(
uint16_t bond_pid, uint16_t bonded_devs[], uint16_t bonded_devs_length)
{
#ifdef HAVE_DPDK_BOND
#if RTE_VERSION >= RTE_VERSION_NUM(23, 11, 0, 0)
int32_t len = rte_eth_bond_members_get(bond_pid, bonded_devs, bonded_devs_length);
#else
int32_t len = rte_eth_bond_slaves_get(bond_pid, bonded_devs, bonded_devs_length);
#endif /* RTE_VERSION >= RTE_VERSION_NUM(23, 11, 0, 0) */
if (len == 0)
FatalError("%s: no bonded devices found", DPDKGetPortNameByPortID(bond_pid));
else if (len < 0)
FatalError("%s: unable to get bonded devices (err: %s)", DPDKGetPortNameByPortID(bond_pid),
rte_strerror(-len));
return len;
#else
FatalError(
"%s: bond port not supported in DPDK installation", DPDKGetPortNameByPortID(bond_pid));
#endif
}
int32_t BondingAllDevicesSameDriver(uint16_t bond_pid)
{
uint16_t bonded_devs[RTE_MAX_ETHPORTS] = { 0 };
uint16_t len = BondingMemberDevicesGet(bond_pid, bonded_devs, RTE_MAX_ETHPORTS);
const char *driver_name = NULL, *first_driver_name = NULL;
struct rte_eth_dev_info di = { 0 };
for (uint16_t i = 0; i < len; i++) {
int32_t ret = rte_eth_dev_info_get(bonded_devs[i], &di);
if (ret < 0)
FatalError("%s: unable to get device info (err: %s)",
DPDKGetPortNameByPortID(bonded_devs[i]), rte_strerror(-ret));
if (i == 0) {
first_driver_name = di.driver_name;
} else {
driver_name = di.driver_name;
if (strncmp(first_driver_name, driver_name,
MIN(strlen(first_driver_name), strlen(driver_name))) != 0) {
return -EINVAL; // inconsistent drivers
}
}
}
return 0;
}
/**
* Translates to the driver that is actually used by the bonded ports
* \param bond_pid
* \return driver name, FatalError otherwise
*/
const char *BondingDeviceDriverGet(uint16_t bond_pid)
{
uint16_t bonded_devs[RTE_MAX_ETHPORTS] = { 0 };
BondingMemberDevicesGet(bond_pid, bonded_devs, RTE_MAX_ETHPORTS);
struct rte_eth_dev_info di = { 0 };
int32_t ret = rte_eth_dev_info_get(bonded_devs[0], &di);
if (ret < 0)
FatalError("%s: unable to get device info (err: %s)",
DPDKGetPortNameByPortID(bonded_devs[0]), rte_strerror(-ret));
return di.driver_name;
}
#endif /* HAVE_DPDK */
#endif /* UTIL_DPDK_BONDING_C */
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