cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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statx.c (1830B)

      1// SPDX-License-Identifier: LGPL-2.1
      2/*
      3 * trace/beauty/statx.c
      4 *
      5 *  Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
      6 */
      7
      8#include "trace/beauty/beauty.h"
      9#include <linux/kernel.h>
     10#include <sys/types.h>
     11#include <uapi/linux/fcntl.h>
     12#include <uapi/linux/stat.h>
     13
     14size_t syscall_arg__scnprintf_statx_flags(char *bf, size_t size, struct syscall_arg *arg)
     15{
     16	bool show_prefix = arg->show_string_prefix;
     17	const char *prefix = "AT_";
     18	int printed = 0, flags = arg->val;
     19
     20	if (flags == 0)
     21		return scnprintf(bf, size, "%s%s", show_prefix ? "AT_STATX_" : "", "SYNC_AS_STAT");
     22#define	P_FLAG(n) \
     23	if (flags & AT_##n) { \
     24		printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
     25		flags &= ~AT_##n; \
     26	}
     27
     28	P_FLAG(SYMLINK_NOFOLLOW);
     29	P_FLAG(REMOVEDIR);
     30	P_FLAG(SYMLINK_FOLLOW);
     31	P_FLAG(NO_AUTOMOUNT);
     32	P_FLAG(EMPTY_PATH);
     33	P_FLAG(STATX_FORCE_SYNC);
     34	P_FLAG(STATX_DONT_SYNC);
     35
     36#undef P_FLAG
     37
     38	if (flags)
     39		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
     40
     41	return printed;
     42}
     43
     44size_t syscall_arg__scnprintf_statx_mask(char *bf, size_t size, struct syscall_arg *arg)
     45{
     46	bool show_prefix = arg->show_string_prefix;
     47	const char *prefix = "STATX_";
     48	int printed = 0, flags = arg->val;
     49
     50#define	P_FLAG(n) \
     51	if (flags & STATX_##n) { \
     52		printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
     53		flags &= ~STATX_##n; \
     54	}
     55
     56	P_FLAG(TYPE);
     57	P_FLAG(MODE);
     58	P_FLAG(NLINK);
     59	P_FLAG(UID);
     60	P_FLAG(GID);
     61	P_FLAG(ATIME);
     62	P_FLAG(MTIME);
     63	P_FLAG(CTIME);
     64	P_FLAG(INO);
     65	P_FLAG(SIZE);
     66	P_FLAG(BLOCKS);
     67	P_FLAG(BTIME);
     68	P_FLAG(MNT_ID);
     69
     70#undef P_FLAG
     71
     72	if (flags)
     73		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
     74
     75	return printed;
     76}