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/linux/tools/testing/selftests/fchmodat2/
H A Dfchmodat2_test.c12 int sys_fchmodat2(int dfd, const char *filename, mode_t mode, int flags) in sys_fchmodat2() argument
14 int ret = syscall(__NR_fchmodat2, dfd, filename, mode, flags); in sys_fchmodat2()
21 int dfd, ret; in setup_testdir() local
28 dfd = open(dirname, O_PATH | O_DIRECTORY); in setup_testdir()
29 if (dfd < 0) in setup_testdir()
32 ret = openat(dfd, "regfile", O_CREAT | O_WRONLY | O_TRUNC, 0644); in setup_testdir()
38 ret = symlinkat("regfile", dfd, "symlink"); in setup_testdir()
43 return dfd; in setup_testdir()
46 int expect_mode(int dfd, const char *filename, mode_t expect_mode) in expect_mode() argument
49 int ret = fstatat(dfd, filename, &st, AT_SYMLINK_NOFOLLOW); in expect_mode()
[all …]
/linux/fs/
H A Dutimes.c80 static int do_utimes_path(int dfd, const char __user *filename, in do_utimes_path() argument
95 error = user_path_at(dfd, filename, lookup_flags, &path); in do_utimes_path()
122 * @dfd: open file descriptor, -1 or AT_FDCWD
127 * If filename is NULL and dfd refers to an open file, then operate on
128 * the file. Otherwise look up filename, possibly using dfd as a
135 long do_utimes(int dfd, const char __user *filename, struct timespec64 *times, in do_utimes() argument
138 if (filename == NULL && dfd != AT_FDCWD) in do_utimes()
139 return do_utimes_fd(dfd, times, flags); in do_utimes()
140 return do_utimes_path(dfd, filename, times, flags); in do_utimes()
143 SYSCALL_DEFINE4(utimensat, int, dfd, const char __user *, filename, in SYSCALL_DEFINE4() argument
[all …]
H A Dstat.c328 * @dfd: A file descriptor representing the base dir for a relative filename
341 static int vfs_statx(int dfd, struct filename *filename, int flags, in vfs_statx() argument
353 error = filename_lookup(dfd, filename, lookup_flags, &path, NULL); in vfs_statx()
365 int vfs_fstatat(int dfd, const char __user *filename, in vfs_fstatat() argument
372 if (!name && dfd >= 0) in vfs_fstatat()
373 return vfs_fstat(dfd, stat); in vfs_fstatat()
375 ret = vfs_statx(dfd, name, statx_flags, stat, STATX_BASIC_STATS); in vfs_fstatat()
536 SYSCALL_DEFINE4(newfstatat, int, dfd, const char __user *, filename, in SYSCALL_DEFINE4() argument
542 error = vfs_fstatat(dfd, filename, &stat, flag); in SYSCALL_DEFINE4()
563 static int do_readlinkat(int dfd, const char __user *pathname, in do_readlinkat() argument
[all …]
H A Dxattr.c653 int filename_setxattr(int dfd, struct filename *filename, in filename_setxattr() argument
660 error = filename_lookup(dfd, filename, lookup_flags, &path, NULL); in filename_setxattr()
679 static int path_setxattrat(int dfd, const char __user *pathname, in path_setxattrat() argument
706 if (!filename && dfd >= 0) { in path_setxattrat()
707 CLASS(fd, f)(dfd); in path_setxattrat()
713 error = filename_setxattr(dfd, filename, lookup_flags, &ctx); in path_setxattrat()
719 SYSCALL_DEFINE6(setxattrat, int, dfd, const char __user *, pathname, unsigned int, at_flags, in SYSCALL_DEFINE6() argument
738 return path_setxattrat(dfd, pathname, at_flags, name, in SYSCALL_DEFINE6()
808 ssize_t filename_getxattr(int dfd, struct filename *filename, in filename_getxattr() argument
814 error = filename_lookup(dfd, filename, lookup_flags, &path, NULL); in filename_getxattr()
[all …]
H A Dinternal.h55 extern int filename_lookup(int dfd, struct filename *name, unsigned flags,
57 int do_rmdir(int dfd, struct filename *name);
58 int do_unlinkat(int dfd, struct filename *name);
62 int do_mkdirat(int dfd, struct filename *name, umode_t mode);
187 extern struct file *do_filp_open(int dfd, struct filename *pathname,
198 int do_fchownat(int dfd, const char __user *filename, uid_t user, gid_t group,
253 int do_statx(int dfd, struct filename *filename, unsigned int flags,
287 ssize_t filename_getxattr(int dfd, struct filename *filename,
290 int filename_setxattr(int dfd, struct filename *filename,
H A Dopen.c467 static int do_faccessat(int dfd, const char __user *filename, int mode, int flags) in do_faccessat() argument
493 res = user_path_at(dfd, filename, lookup_flags, &path); in do_faccessat()
539 SYSCALL_DEFINE3(faccessat, int, dfd, const char __user *, filename, int, mode) in SYSCALL_DEFINE3() argument
541 return do_faccessat(dfd, filename, mode, 0); in SYSCALL_DEFINE3()
544 SYSCALL_DEFINE4(faccessat2, int, dfd, const char __user *, filename, int, mode, in SYSCALL_DEFINE4() argument
547 return do_faccessat(dfd, filename, mode, flags); in SYSCALL_DEFINE4()
680 static int do_fchmodat(int dfd, const char __user *filename, umode_t mode, in do_fchmodat() argument
695 error = user_path_at(dfd, filename, lookup_flags, &path); in do_fchmodat()
707 SYSCALL_DEFINE4(fchmodat2, int, dfd, const char __user *, filename, in SYSCALL_DEFINE4() argument
710 return do_fchmodat(dfd, filename, mode, flags); in SYSCALL_DEFINE4()
[all …]
H A Dfile_attr.c374 SYSCALL_DEFINE5(file_getattr, int, dfd, const char __user *, filename, in SYSCALL_DEFINE5() argument
404 if (!name && dfd >= 0) { in SYSCALL_DEFINE5()
405 CLASS(fd, f)(dfd); in SYSCALL_DEFINE5()
412 error = filename_lookup(dfd, name, lookup_flags, &filepath, in SYSCALL_DEFINE5()
431 SYSCALL_DEFINE5(file_setattr, int, dfd, const char __user *, filename, in SYSCALL_DEFINE5() argument
470 if (!name && dfd >= 0) { in SYSCALL_DEFINE5()
471 CLASS(fd, f)(dfd); in SYSCALL_DEFINE5()
478 error = filename_lookup(dfd, name, lookup_flags, &filepath, in SYSCALL_DEFINE5()
H A Dnamei.c652 int dfd; member
661 static void __set_nameidata(struct nameidata *p, int dfd, struct filename *name) in __set_nameidata() argument
666 p->dfd = dfd; in __set_nameidata()
676 static inline void set_nameidata(struct nameidata *p, int dfd, struct filename *name, in set_nameidata() argument
679 __set_nameidata(p, dfd, name); in set_nameidata()
2581 /* Absolute pathname -- fetch the root (LOOKUP_IN_ROOT uses nd->dfd). */ in path_init()
2590 if (nd->dfd == AT_FDCWD) { in path_init()
2607 CLASS(fd_raw, f)(nd->dfd); in path_init()
2697 int filename_lookup(int dfd, struct filename *name, unsigned flags, in filename_lookup() argument
2704 set_nameidata(&nd, dfd, name, root); in filename_lookup()
[all …]
H A Dfhandle.c117 * @dfd: directory relative to which name is interpreted if not absolute
130 SYSCALL_DEFINE5(name_to_handle_at, int, dfd, const char __user *, name, in SYSCALL_DEFINE5() argument
147 * AT_EMPTY_PATH could be used along with a dfd that refers to a in SYSCALL_DEFINE5()
162 err = user_path_at(dfd, name, lookup_flags, &path); in SYSCALL_DEFINE5()
/linux/tools/testing/selftests/openat2/
H A Dhelpers.c22 int raw_openat2(int dfd, const char *path, void *how, size_t size) in raw_openat2() argument
24 int ret = syscall(__NR_openat2, dfd, path, how, size); in raw_openat2()
28 int sys_openat2(int dfd, const char *path, struct open_how *how) in sys_openat2() argument
30 return raw_openat2(dfd, path, how, sizeof(*how)); in sys_openat2()
33 int sys_openat(int dfd, const char *path, struct open_how *how) in sys_openat() argument
35 int ret = openat(dfd, path, how->flags, how->mode); in sys_openat()
47 int touchat(int dfd, const char *path) in touchat() argument
49 int fd = openat(dfd, path, O_CREAT, 0700); in touchat()
71 bool fdequal(int fd, int dfd, const char *path) in fdequal() argument
77 dfdpath = fdreadlink(dfd); in fdequal()
H A Dresolve_test.c49 int dfd, tmpfd; in setup_testdir() local
59 dfd = open(dirname, O_PATH | O_DIRECTORY); in setup_testdir()
60 if (dfd < 0) in setup_testdir()
64 E_mkdirat(dfd, "root", 0755); in setup_testdir()
65 tmpfd = openat(dfd, "root", O_PATH | O_DIRECTORY); in setup_testdir()
68 close(dfd); in setup_testdir()
69 dfd = tmpfd; in setup_testdir()
71 E_symlinkat("/proc/self/exe", dfd, "procexe"); in setup_testdir()
72 E_symlinkat("/proc/self/root", dfd, "procroot"); in setup_testdir()
73 E_mkdirat(dfd, "root", 0755); in setup_testdir()
[all …]
H A Drename_attack_test.c37 int dfd; in setup_testdir() local
43 dfd = open(dirname, O_PATH | O_DIRECTORY); in setup_testdir()
44 if (dfd < 0) in setup_testdir()
47 E_mkdirat(dfd, "a", 0755); in setup_testdir()
48 E_mkdirat(dfd, "b", 0755); in setup_testdir()
49 E_mkdirat(dfd, "a/c", 0755); in setup_testdir()
51 return dfd; in setup_testdir()
86 int dfd, afd; in test_rename_attack() local
101 dfd = setup_testdir(); in test_rename_attack()
102 afd = openat(dfd, "a", O_PATH); in test_rename_attack()
[all …]
H A Dhelpers.h96 int raw_openat2(int dfd, const char *path, void *how, size_t size);
97 int sys_openat2(int dfd, const char *path, struct open_how *how);
98 int sys_openat(int dfd, const char *path, struct open_how *how);
102 int touchat(int dfd, const char *path);
104 bool fdequal(int fd, int dfd, const char *path);
/linux/include/linux/
H A Dsyscalls.h343 asmlinkage long sys_setxattrat(int dfd, const char __user *path, unsigned int at_flags,
352 asmlinkage long sys_getxattrat(int dfd, const char __user *path, unsigned int at_flags,
361 asmlinkage long sys_listxattrat(int dfd, const char __user *path,
369 asmlinkage long sys_removexattrat(int dfd, const char __user *path,
375 asmlinkage long sys_file_getattr(int dfd, const char __user *filename,
378 asmlinkage long sys_file_setattr(int dfd, const char __user *filename,
411 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
413 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
414 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
447 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
[all …]
/linux/io_uring/
H A Dfs.c29 int dfd; member
36 int dfd; member
114 un->dfd = READ_ONCE(sqe->fd); in io_unlinkat_prep()
138 ret = do_rmdir(un->dfd, un->filename); in io_unlinkat()
140 ret = do_unlinkat(un->dfd, un->filename); in io_unlinkat()
164 mkd->dfd = READ_ONCE(sqe->fd); in io_mkdirat_prep()
184 ret = do_mkdirat(mkd->dfd, mkd->filename, mkd->mode); in io_mkdirat()
H A Dopenclose.c24 int dfd;
68 open->dfd = READ_ONCE(sqe->fd); in __io_openat_prep()
143 file = do_filp_open(open->dfd, open->filename, &op); in io_openat2()
23 int dfd; global() member
/linux/Documentation/trace/
H A Dkprobetrace.rst189 p:myprobe do_sys_open dfd=%ax filename=%dx flags=%cx mode=+4($stack)
193 p:myprobe,do_sys_open,dfd=%ax,filename=%dx,flags=%cx,mode=+4($stack)
201 …echo 'p:myprobe do_sys_open dfd=%ax filename=%dx flags=%cx mode=+4($stack)' > /sys/kernel/tracing/…
230 field:unsigned long dfd; offset:20; size:4; signed:0;
236 print fmt: "(%lx) dfd=%lx filename=%lx flags=%lx mode=%lx", REC->__probe_ip,
237 REC->dfd, REC->filename, REC->flags, REC->mode
275 …<...>-1447 [001] 1038282.286875: myprobe: (do_sys_open+0x0/0xd6) dfd=3 filename=7fffd1ec4440 flag…
277 …<...>-1447 [001] 1038282.286885: myprobe: (do_sys_open+0x0/0xd6) dfd=ffffff9c filename=40413c fla…
279 …<...>-1447 [001] 1038282.286969: myprobe: (do_sys_open+0x0/0xd6) dfd=ffffff9c filename=4041c6 fla…
/linux/Documentation/devicetree/bindings/pinctrl/
H A Dmediatek,mt7981-pinctrl.yaml88 "dfd" "dfd" 0, 1, 4, 5
101 "dfd_ntrst" "dfd" 8
161 enum: [wa_aice, dfd, jtag, pta, pcm, udi, usb, ant, eth, i2c, led,
183 const: dfd
187 enum: [dfd, dfd_ntrst]
/linux/kernel/trace/
H A Dkprobe_event_gen_test.c42 #define KPROBE_GEN_TEST_ARG0 "dfd=%ax"
49 #define KPROBE_GEN_TEST_ARG0 "dfd=%x0"
56 #define KPROBE_GEN_TEST_ARG0 "dfd=%r0"
63 #define KPROBE_GEN_TEST_ARG0 "dfd=%a0"
/linux/arch/sparc/kernel/
H A Dsystbls.h65 asmlinkage long compat_sys_fstatat64(unsigned int dfd,
98 asmlinkage long compat_sys_fstatat64(unsigned int dfd,
/linux/tools/testing/selftests/exec/
H A Dexecveat.c304 /* dfd + path */ in run_tests()
310 /* absolute path with nonsense dfd */ in run_tests()
337 /* dfd + path */ in run_tests()
348 /* dfd + path */ in run_tests()
362 /* dfd + path */ in run_tests()
/linux/fs/notify/fanotify/
H A Dfanotify_user.c1192 static int fanotify_find_path(int dfd, const char __user *filename, in fanotify_find_path() argument
1198 pr_debug("%s: dfd=%d filename=%p flags=%x\n", __func__, in fanotify_find_path()
1199 dfd, filename, flags); in fanotify_find_path()
1202 CLASS(fd, f)(dfd); in fanotify_find_path()
1221 ret = user_path_at(dfd, filename, lookup_flags, path); in fanotify_find_path()
1905 int dfd, const char __user *pathname) in do_fanotify_mark() argument
1922 pr_debug("%s: fanotify_fd=%d flags=%x dfd=%d pathname=%p mask=%llx\n", in do_fanotify_mark()
1923 __func__, fanotify_fd, flags, dfd, pathname, mask); in do_fanotify_mark()
2065 ret = fanotify_find_path(dfd, pathname, &path, flags, in do_fanotify_mark()
2172 __u64, mask, int, dfd, in SYSCALL_DEFINE5() argument
[all …]
/linux/tools/perf/Documentation/
H A Dperf-trace.txt299 2272.992 ( 0.037 ms): gnome-shell/1370 openat(dfd: CWD, filename: /proc/self/stat) = 31
300 2277.481 ( 0.139 ms): gnome-shell/3039 openat(dfd: CWD, filename: /proc/self/stat) = 65
301 3026.398 ( 0.076 ms): gnome-shell/3039 openat(dfd: CWD, filename: /proc/self/stat) = 65
302 4294.665 ( 0.015 ms): sed/15879 openat(dfd: CWD, filename: /etc/ld.so.cache, flags: CLOEXEC) = 3
/linux/tools/testing/selftests/pidfd/
H A Dpidfd_bind_mount.c87 sys_open_tree(int dfd,const char * filename,unsigned int flags) sys_open_tree() argument
/linux/tools/testing/selftests/ftrace/test.d/dynevent/
H A Deprobes_syntax_errors.tc22 check_error 'e:foo/bar syscalls/sys_enter_openat arg=^dfd' # BAD_FETCH_ARG

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