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/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2009, 2010 Daniel Borkmann.
 * Subject to the GPL, version 2.
 */

extern int set_sockopt_hwtimestamp(int sock, const char *dev);

#ifdef __WITH_HARDWARE_TIMESTAMPING
#include <string.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <linux/sockios.h>
#include <linux/net_tstamp.h>
#include <linux/net_tstamp.h>
#include <linux/if_packet.h>
#include <linux/if.h>

#include "xutils.h"

int set_sockopt_hwtimestamp(int sock, const char *dev)
{
	int timesource, ret;
	struct hwtstamp_config hwconfig;
	struct ifreq ifr;

	if (!strncmp("any", dev, strlen("any")))
		return -1;

	memset(&hwconfig, 0, sizeof(hwconfig));
	hwconfig.tx_type = HWTSTAMP_TX_OFF;
	hwconfig.rx_filter = HWTSTAMP_FILTER_ALL;

	memset(&ifr, 0, sizeof(ifr));
	strlcpy(ifr.ifr_name, dev, sizeof(ifr.ifr_name));
	ifr.ifr_data = &hwconfig;

	ret = ioctl(sock, SIOCSHWTSTAMP, &ifr);
	if (ret < 0)
		return -1;

	timesource = SOF_TIMESTAMPING_RAW_HARDWARE;

	return setsockopt(sock, SOL_PACKET, PACKET_TIMESTAMP, &timesource,
			  sizeof(timesource));
}
#else
int set_sockopt_hwtimestamp(int sock, const char *dev)
{
	return -1;
}
#endif
ore cgroup_name/path() are operational
While refactoring cgroup creation, a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") incorrectly onlined subsystems before the new cgroup is associated with it kernfs_node. This is fine for cgroup proper but cgroup_name/path() depend on the associated kernfs_node and if a subsystem makes the new cgroup_subsys_state visible, which they're allowed to after onlining, it can lead to NULL dereference. The current code performs cgroup creation and subsystem onlining in cgroup_create() and cgroup_mkdir() makes the cgroup and subsystems visible afterwards. There's no reason to online the subsystems early and we can simply drop cgroup_apply_control_enable() call from cgroup_create() so that the subsystems are onlined and made visible at the same time. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") Cc: stable@vger.kernel.org # v4.6+
Diffstat (limited to 'fs/bfs/bfs.h')