-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
+/*
+ * Check decoding of fanotify_mark syscall.
+ *
+ * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
+ * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
+ * Copyright (c) 2015-2018 The strace developers.
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "tests.h"
+
+#include <asm/unistd.h>
-#if defined HAVE_SYS_FANOTIFY_H && defined HAVE_FANOTIFY_MARK
+#if defined HAVE_SYS_FANOTIFY_H && defined HAVE_FANOTIFY_MARK && \
+ defined __NR_fanotify_mark
+
+# include <limits.h>
+# include <stdio.h>
+# include <unistd.h>
# include <sys/fanotify.h>
-int
-main(void)
+
+#if XLAT_RAW
+# define str_fan_mark_add "0x1"
+# define str_fan_modify_ondir "0x40000002"
+# define str_at_fdcwd "-100"
+#elif XLAT_VERBOSE
+# define str_fan_mark_add "0x1 /* FAN_MARK_ADD */"
+# define str_fan_modify_ondir "0x40000002 /* FAN_MODIFY|FAN_ONDIR */"
+# define str_at_fdcwd "-100 /* AT_FDCWD */"
+#else
+# define str_fan_mark_add "FAN_MARK_ADD"
+# define str_fan_modify_ondir "FAN_MODIFY|FAN_ONDIR"
+# define str_at_fdcwd "AT_FDCWD"
+#endif
+
+/* Performs fanotify_mark call via the syscall interface. */
+static void
+do_call(kernel_ulong_t fd, kernel_ulong_t flags, const char *flags_str,
+ uint64_t mask, const char *mask_str, kernel_ulong_t dirfd,
+ const char *dirfd_str, kernel_ulong_t path, const char *path_str)
{
- fanotify_mark(-1, FAN_MARK_ADD, FAN_MODIFY | FAN_ONDIR, -100, ".");
- return 0;
+ long rc;
+
+ rc = syscall(__NR_fanotify_mark, fd, flags,
+# if (LONG_MAX > INT_MAX) \
+ || (defined __x86_64__ && defined __ILP32__) \
+ || defined LINUX_MIPSN32
+ mask,
+# else
+/* arch/parisc/kernel/sys_parisc32.c, commit ab8a261b */
+# ifdef HPPA
+ LL_VAL_TO_PAIR((mask << 32) | (mask >> 32)),
+# else
+ LL_VAL_TO_PAIR(mask),
+# endif
+# endif
+ dirfd, path);
+
+ printf("fanotify_mark(%d, %s, %s, %s, %s) = %s\n",
+ (int) fd, flags_str, mask_str, dirfd_str, path_str,
+ sprintrc(rc));
}
-#else
+
+struct strval {
+ kernel_ulong_t val;
+ const char *str;
+};
+
+struct strval64 {
+ uint64_t val;
+ const char *str;
+};
+
+#define STR16 "0123456789abcdef"
+#define STR64 STR16 STR16 STR16 STR16
+
int
main(void)
{
- return 77;
+ enum {
+ PATH1_SIZE = 64,
+ };
+
+ static const kernel_ulong_t fds[] = {
+ (kernel_ulong_t) 0xdeadfeed12345678ULL,
+ F8ILL_KULONG_MASK,
+ (kernel_ulong_t) 0xdeb0d1edffffffffULL,
+ };
+ static const struct strval flags[] = {
+ { F8ILL_KULONG_MASK, "0" },
+ { (kernel_ulong_t) 0xdec0deddefaced00ULL,
+ "0xefaced00"
+#if !XLAT_RAW
+ " /* FAN_MARK_??? */"
+#endif
+ },
+ { (kernel_ulong_t) 0xda7a105700000040ULL,
+#if XLAT_RAW
+ "0x40"
+#elif XLAT_VERBOSE
+ "0x40 /* FAN_MARK_IGNORED_SURV_MODIFY */"
+#else
+ "FAN_MARK_IGNORED_SURV_MODIFY"
+#endif
+ },
+ { (kernel_ulong_t) 0xbadc0deddeadfeedULL,
+#if XLAT_RAW || XLAT_VERBOSE
+ "0xdeadfeed"
+#endif
+#if XLAT_VERBOSE
+ " /* "
+#endif
+#if !XLAT_RAW
+ "FAN_MARK_ADD|FAN_MARK_DONT_FOLLOW|FAN_MARK_ONLYDIR|"
+ "FAN_MARK_IGNORED_MASK|FAN_MARK_IGNORED_SURV_MODIFY|"
+ "FAN_MARK_FLUSH|0xdeadfe00"
+#endif
+#if XLAT_VERBOSE
+ " */"
+#endif
+ },
+ };
+ static const struct strval64 masks[] = {
+ { ARG_ULL_STR(0) },
+ { 0xdeadfeedfacebeefULL,
+#if XLAT_RAW || XLAT_VERBOSE
+ "0xdeadfeedfacebeef"
+#endif
+#if XLAT_VERBOSE
+ " /* "
+#endif
+#if !XLAT_RAW
+ "FAN_ACCESS|FAN_MODIFY|FAN_CLOSE_WRITE|FAN_OPEN|"
+ "FAN_ACCESS_PERM|FAN_ONDIR|FAN_EVENT_ON_CHILD|"
+ "0xdeadfeedb2ccbec4"
+#endif
+#if XLAT_VERBOSE
+ " */"
+#endif
+ },
+ { ARG_ULL_STR(0xffffffffb7fcbfc4)
+#if !XLAT_RAW
+ " /* FAN_??? */"
+#endif
+ },
+ };
+ static const struct strval dirfds[] = {
+ { (kernel_ulong_t) 0xfacefeed00000001ULL, "1" },
+ { (kernel_ulong_t) 0xdec0ded0ffffffffULL,
+#if XLAT_RAW
+ "-1"
+#elif XLAT_VERBOSE
+ "-1 /* FAN_NOFD */"
+#else
+ "FAN_NOFD"
+#endif
+ },
+ { (kernel_ulong_t) 0xbadfacedffffff9cULL, str_at_fdcwd },
+ { (kernel_ulong_t) 0xdefaced1beeff00dULL, "-1091571699" },
+ };
+ static const char str64[] = STR64;
+
+ static char bogus_path1_addr[sizeof("0x") + sizeof(void *) * 2];
+ static char bogus_path1_after_addr[sizeof("0x") + sizeof(void *) * 2];
+
+ char *bogus_path1 = tail_memdup(str64, PATH1_SIZE);
+ char *bogus_path2 = tail_memdup(str64, sizeof(str64));
+
+ struct strval paths[] = {
+ { (kernel_ulong_t) 0, "NULL" },
+ { (kernel_ulong_t) (uintptr_t) (bogus_path1 + PATH1_SIZE),
+ bogus_path1_after_addr },
+ { (kernel_ulong_t) (uintptr_t) bogus_path1, bogus_path1_addr },
+ { (kernel_ulong_t) (uintptr_t) bogus_path2, "\"" STR64 "\"" },
+ };
+
+ unsigned int i;
+ unsigned int j;
+ unsigned int k;
+ unsigned int l;
+ unsigned int m;
+ int rc;
+
+
+ snprintf(bogus_path1_addr, sizeof(bogus_path1_addr), "%p", bogus_path1);
+ snprintf(bogus_path1_after_addr, sizeof(bogus_path1_after_addr), "%p",
+ bogus_path1 + PATH1_SIZE);
+
+ rc = fanotify_mark(-1, FAN_MARK_ADD, FAN_MODIFY | FAN_ONDIR,
+ -100, ".");
+ printf("fanotify_mark(-1, %s, %s, %s, \".\") = %s\n",
+ str_fan_mark_add, str_fan_modify_ondir, str_at_fdcwd,
+ sprintrc(rc));
+
+ for (i = 0; i < ARRAY_SIZE(fds); i++) {
+ for (j = 0; j < ARRAY_SIZE(flags); j++) {
+ for (k = 0; k < ARRAY_SIZE(masks); k++) {
+ for (l = 0; l < ARRAY_SIZE(dirfds); l++) {
+ for (m = 0; m < ARRAY_SIZE(paths); m++)
+ do_call(fds[i],
+ flags[j].val,
+ flags[j].str,
+ masks[k].val,
+ masks[k].str,
+ dirfds[l].val,
+ dirfds[l].str,
+ paths[m].val,
+ paths[m].str);
+ }
+ }
+ }
+ }
+
+ puts("+++ exited with 0 +++");
+ return 0;
}
+
+#else
+
+SKIP_MAIN_UNDEFINED("HAVE_SYS_FANOTIFY_H && HAVE_FANOTIFY_MARK && "
+ "__NR_fanotify_mark")
+
#endif
projects / strace / blobdiff