/* * time.h - NTFS time conversion functions. Part of the Linux-NTFS project. * * Copyright (c) 2001-2005 Anton Altaparmakov * * This program/include file is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program/include file 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 * along with this program (in the main directory of the Linux-NTFS * distribution in the file COPYING); if not, write to the Free Software * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _LINUX_NTFS_TIME_H #define _LINUX_NTFS_TIME_H #include /* For current_kernel_time(). */ #include /* For do_div(). */ #include "endian.h" #define NTFS_TIME_OFFSET ((s64)(369 * 365 + 89) * 24 * 3600 * 10000000) /** * utc2ntfs - convert Linux UTC time to NTFS time * @ts: Linux UTC time to convert to NTFS time * * Convert the Linux UTC time @ts to its corresponding NTFS time and return * that in little endian format. * * Linux stores time in a struct timespec consisting of a time_t (long at * present) tv_sec and a long tv_nsec where tv_sec is the number of 1-second * intervals since 1st January 1970, 00:00:00 UTC and tv_nsec is the number of * 1-nano-second intervals since the value of tv_sec. * * NTFS uses Microsoft's standard time format which is stored in a s64 and is * measured as the number of 100-nano-second intervals since 1st January 1601, * 00:00:00 UTC. */ static inline sle64 utc2ntfs(const struct timespec ts) { /* * Convert the seconds to 100ns intervals, add the nano-seconds * converted to 100ns intervals, and then add the NTFS time offset. */ return cpu_to_sle64((s64)ts.tv_sec * 10000000 + ts.tv_nsec / 100 + NTFS_TIME_OFFSET); } /** * get_current_ntfs_time - get the current time in little endian NTFS format * * Get the current time from the Linux kernel, convert it to its corresponding * NTFS time and return that in little endian format. */ static inline sle64 get_current_ntfs_time(void) { return utc2ntfs(current_kernel_time()); } /** * ntfs2utc - convert NTFS time to Linux time * @time: NTFS time (little endian) to convert to Linux UTC * * Convert the little endian NTFS time @time to its corresponding Linux UTC * time and return that in cpu format. * * Linux stores time in a struct timespec consisting of a time_t (long at * present) tv_sec and a long tv_nsec where tv_sec is the number of 1-second * intervals since 1st January 1970, 00:00:00 UTC and tv_nsec is the number of * 1-nano-second intervals since the value of tv_sec. * * NTFS uses Microsoft's standard time format which is stored in a s64 and is * measured as the number of 100 nano-second intervals since 1st January 1601, * 00:00:00 UTC. */ static inline struct timespec ntfs2utc(const sle64 time) { struct timespec ts; /* Subtract the NTFS time offset. */ u64 t = (u64)(sle64_to_cpu(time) - NTFS_TIME_OFFSET); /* * Convert the time to 1-second intervals and the remainder to * 1-nano-second intervals. */ ts.tv_nsec = do_div(t, 10000000) * 100; ts.tv_sec = t; return ts; } #endif /* _LINUX_NTFS_TIME_H */ >space:mode:
authorMichal Kubeček <mkubecek@suse.cz>2017-01-31 10:30:06 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2017-02-02 14:31:58 +0100
commit2851940ffee313e0ff12540a8e11a8c54dea9c65 (patch)
tree0fe2bf02a3125fc7a13800ded0d34812fda92e60
parent90c1aff702d449a1a248c4829d51c0bc677f968e (diff)
netfilter: allow logging from non-init namespaces
Commit 69b34fb996b2 ("netfilter: xt_LOG: add net namespace support for xt_LOG") disabled logging packets using the LOG target from non-init namespaces. The motivation was to prevent containers from flooding kernel log of the host. The plan was to keep it that way until syslog namespace implementation allows containers to log in a safe way. However, the work on syslog namespace seems to have hit a dead end somewhere in 2013 and there are users who want to use xt_LOG in all network namespaces. This patch allows to do so by setting /proc/sys/net/netfilter/nf_log_all_netns to a nonzero value. This sysctl is only accessible from init_net so that one cannot switch the behaviour from inside a container. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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