2 posix1e - a python module exposing the posix acl functions
4 Copyright (C) 2002-2009, 2012, 2014, 2015 Iustin Pop <iustin@k1024.org>
6 This library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 This library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with this library; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 #include <sys/types.h>
29 #include <acl/libacl.h>
30 #define get_perm acl_get_perm
32 #define get_perm acl_get_perm_np
35 /* Used for cpychecker: */
36 /* The checker automatically defines this preprocessor name when creating
37 the custom attribute: */
38 #if defined(WITH_CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF_ATTRIBUTE)
39 #define CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF(typename) \
40 __attribute__((cpychecker_type_object_for_typedef(typename)))
42 /* This handles the case where we're compiling with a "vanilla"
43 compiler that doesn't supply this attribute: */
44 #define CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF(typename)
47 /* The checker automatically defines this preprocessor name when creating
48 the custom attribute: */
49 #if defined(WITH_CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION_ATTRIBUTE)
50 #define CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION \
51 __attribute__((cpychecker_negative_result_sets_exception))
53 #define CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION
56 static PyTypeObject ACL_Type
57 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF("ACL_Object");
58 static PyObject* ACL_applyto(PyObject* obj, PyObject* args);
59 static PyObject* ACL_valid(PyObject* obj, PyObject* args);
61 #ifdef HAVE_ACL_COPY_EXT
62 static PyObject* ACL_get_state(PyObject *obj, PyObject* args);
63 static PyObject* ACL_set_state(PyObject *obj, PyObject* args);
67 static PyTypeObject Entry_Type
68 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF("Entry_Object");
69 static PyTypeObject Permset_Type
70 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF("Permset_Object");
71 static PyObject* Permset_new(PyTypeObject* type, PyObject* args,
75 static acl_perm_t holder_ACL_EXECUTE = ACL_EXECUTE;
76 static acl_perm_t holder_ACL_READ = ACL_READ;
77 static acl_perm_t holder_ACL_WRITE = ACL_WRITE;
91 PyObject *parent_acl; /* The parent acl, so it won't run out on us */
97 PyObject *parent_entry; /* The parent entry, so it won't run out on us */
98 acl_permset_t permset;
103 /* Creation of a new ACL instance */
104 static PyObject* ACL_new(PyTypeObject* type, PyObject* args,
108 newacl = type->tp_alloc(type, 0);
111 ((ACL_Object*)newacl)->acl = NULL;
113 ((ACL_Object*)newacl)->entry_id = ACL_FIRST_ENTRY;
120 /* Initialization of a new ACL instance */
121 static int ACL_init(PyObject* obj, PyObject* args, PyObject *keywds) {
122 ACL_Object* self = (ACL_Object*) obj;
124 static char *kwlist[] = { "file", "fd", "text", "acl", "filedef",
126 char *format = "|etisO!si";
129 static char *kwlist[] = { "file", "fd", "text", "acl", "filedef", NULL };
130 char *format = "|etisO!s";
133 char *filedef = NULL;
136 ACL_Object* thesrc = NULL;
138 if(!PyTuple_Check(args) || PyTuple_Size(args) != 0 ||
139 (keywds != NULL && PyDict_Check(keywds) && PyDict_Size(keywds) > 1)) {
140 PyErr_SetString(PyExc_ValueError, "a max of one keyword argument"
144 if(!PyArg_ParseTupleAndKeywords(args, keywds, format, kwlist,
145 NULL, &file, &fd, &text, &ACL_Type,
153 /* Free the old acl_t without checking for error, we don't
155 if(self->acl != NULL)
159 self->acl = acl_get_file(file, ACL_TYPE_ACCESS);
160 else if(text != NULL)
161 self->acl = acl_from_text(text);
163 self->acl = acl_get_fd(fd);
164 else if(thesrc != NULL)
165 self->acl = acl_dup(thesrc->acl);
166 else if(filedef != NULL)
167 self->acl = acl_get_file(filedef, ACL_TYPE_DEFAULT);
170 self->acl = acl_from_mode(mode);
173 self->acl = acl_init(0);
175 if(self->acl == NULL) {
176 PyErr_SetFromErrno(PyExc_IOError);
183 /* Standard type functions */
184 static void ACL_dealloc(PyObject* obj) {
185 ACL_Object *self = (ACL_Object*) obj;
186 PyObject *err_type, *err_value, *err_traceback;
187 int have_error = PyErr_Occurred() ? 1 : 0;
190 PyErr_Fetch(&err_type, &err_value, &err_traceback);
191 if(self->acl != NULL && acl_free(self->acl) != 0)
192 PyErr_WriteUnraisable(obj);
194 PyErr_Restore(err_type, err_value, err_traceback);
198 /* Converts the acl to a text format */
199 static PyObject* ACL_str(PyObject *obj) {
201 ACL_Object *self = (ACL_Object*) obj;
204 text = acl_to_text(self->acl, NULL);
206 return PyErr_SetFromErrno(PyExc_IOError);
208 ret = PyUnicode_FromString(text);
209 if(acl_free(text) != 0) {
211 return PyErr_SetFromErrno(PyExc_IOError);
217 static char __to_any_text_doc__[] =
218 "to_any_text([prefix='', separator='n', options=0])\n"
219 "Convert the ACL to a custom text format.\n"
221 "This method encapsulates the ``acl_to_any_text()`` function.\n"
222 "It allows a customized text format to be generated for the ACL. See\n"
223 ":manpage:`acl_to_any_text(3)` for more details.\n"
225 ":param string prefix: if given, this string will be pre-pended to\n"
227 ":param string separator: a single character (defaults to '\\n'); this will"
228 " be used to separate the entries in the ACL\n"
229 ":param options: a bitwise combination of:\n\n"
230 " - :py:data:`TEXT_ABBREVIATE`: use 'u' instead of 'user', 'g' \n"
231 " instead of 'group', etc.\n"
232 " - :py:data:`TEXT_NUMERIC_IDS`: User and group IDs are included as\n"
233 " decimal numbers instead of names\n"
234 " - :py:data:`TEXT_SOME_EFFECTIVE`: Include comments denoting the\n"
235 " effective permissions when some are masked\n"
236 " - :py:data:`TEXT_ALL_EFFECTIVE`: Include comments after all ACL\n"
237 " entries affected by an ACL_MASK entry\n"
238 " - :py:data:`TEXT_SMART_INDENT`: Used in combination with the\n"
239 " _EFFECTIVE options, this will ensure that comments are aligned\n"
240 " to the fourth tab position (assuming one tab equals eight spaces)\n"
244 /* Converts the acl to a custom text format */
245 static PyObject* ACL_to_any_text(PyObject *obj, PyObject *args,
248 ACL_Object *self = (ACL_Object*) obj;
250 const char *arg_prefix = NULL;
251 char arg_separator = '\n';
253 static char *kwlist[] = {"prefix", "separator", "options", NULL};
255 if (!PyArg_ParseTupleAndKeywords(args, kwds, "|sci", kwlist, &arg_prefix,
256 &arg_separator, &arg_options))
259 text = acl_to_any_text(self->acl, arg_prefix, arg_separator, arg_options);
261 return PyErr_SetFromErrno(PyExc_IOError);
263 ret = PyBytes_FromString(text);
264 if(acl_free(text) != 0) {
266 return PyErr_SetFromErrno(PyExc_IOError);
271 static char __check_doc__[] =
272 "Check the ACL validity.\n"
274 "This is a non-portable, Linux specific extension that allow more\n"
275 "information to be retrieved in case an ACL is not valid than via the\n"
276 ":py:func:`valid` method.\n"
278 "This method will return either False (the ACL is valid), or a tuple\n"
279 "with two elements. The first element is one of the following\n"
281 " - :py:data:`ACL_MULTI_ERROR`: The ACL contains multiple entries that\n"
282 " have a tag type that may occur at most once\n"
283 " - :py:data:`ACL_DUPLICATE_ERROR`: The ACL contains multiple \n"
284 " :py:data:`ACL_USER` or :py:data:`ACL_GROUP` entries with the\n"
286 " - :py:data:`ACL_MISS_ERROR`: A required entry is missing\n"
287 " - :py:data:`ACL_ENTRY_ERROR`: The ACL contains an invalid entry\n"
290 "The second element of the tuple is the index of the entry that is\n"
291 "invalid (in the same order as by iterating over the ACL entry)\n"
294 /* The acl_check method */
295 static PyObject* ACL_check(PyObject* obj, PyObject* args) {
296 ACL_Object *self = (ACL_Object*) obj;
300 if((result = acl_check(self->acl, &eindex)) == -1)
301 return PyErr_SetFromErrno(PyExc_IOError);
305 return Py_BuildValue("(ii)", result, eindex);
308 /* Implementation of the rich compare for ACLs */
309 static PyObject* ACL_richcompare(PyObject* o1, PyObject* o2, int op) {
310 ACL_Object *acl1, *acl2;
314 if(!PyObject_IsInstance(o2, (PyObject*)&ACL_Type)) {
319 PyErr_SetString(PyExc_TypeError, "can only compare to an ACL");
323 acl1 = (ACL_Object*)o1;
324 acl2 = (ACL_Object*)o2;
325 if((n=acl_cmp(acl1->acl, acl2->acl))==-1)
326 return PyErr_SetFromErrno(PyExc_IOError);
329 ret = n == 0 ? Py_True : Py_False;
332 ret = n == 1 ? Py_True : Py_False;
335 PyErr_SetString(PyExc_TypeError, "ACLs are not orderable");
342 static char __equiv_mode_doc__[] =
343 "Return the octal mode the ACL is equivalent to.\n"
345 "This is a non-portable, Linux specific extension that checks\n"
346 "if the ACL is a basic ACL and returns the corresponding mode.\n"
349 ":raise IOError: An IOerror exception will be raised if the ACL is\n"
350 " an extended ACL.\n"
353 /* The acl_equiv_mode method */
354 static PyObject* ACL_equiv_mode(PyObject* obj, PyObject* args) {
355 ACL_Object *self = (ACL_Object*) obj;
358 if(acl_equiv_mode(self->acl, &mode) == -1)
359 return PyErr_SetFromErrno(PyExc_IOError);
360 return PyLong_FromLong(mode);
365 static char __applyto_doc__[] =
366 "applyto(item[, flag=ACL_TYPE_ACCESS])\n"
367 "Apply the ACL to a file or filehandle.\n"
369 ":param item: either a filename or a file-like object or an integer;\n"
370 " this represents the filesystem object on which to act\n"
371 ":param flag: optional flag representing the type of ACL to set, either\n"
372 " :py:data:`ACL_TYPE_ACCESS` (default) or :py:data:`ACL_TYPE_DEFAULT`\n"
375 /* Applies the ACL to a file */
376 static PyObject* ACL_applyto(PyObject* obj, PyObject* args) {
377 ACL_Object *self = (ACL_Object*) obj;
378 PyObject *target, *tmp;
379 acl_type_t type = ACL_TYPE_ACCESS;
383 if (!PyArg_ParseTuple(args, "O|I", &target, &type))
385 if ((fd = PyObject_AsFileDescriptor(target)) != -1) {
386 if((nret = acl_set_fd(fd, self->acl)) == -1) {
387 PyErr_SetFromErrno(PyExc_IOError);
390 // PyObject_AsFileDescriptor sets an error when failing, so clear
391 // it such that further code works; some method lookups fail if an
392 // error already occured when called, which breaks at least
393 // PyOS_FSPath (called by FSConverter).
395 if(PyUnicode_FSConverter(target, &tmp)) {
396 char *filename = PyBytes_AS_STRING(tmp);
397 if ((nret = acl_set_file(filename, type, self->acl)) == -1) {
398 PyErr_SetFromErrnoWithFilename(PyExc_IOError, filename);
413 static char __valid_doc__[] =
414 "Test the ACL for validity.\n"
416 "This method tests the ACL to see if it is a valid ACL\n"
417 "in terms of the file-system. More precisely, it checks that:\n"
419 "The ACL contains exactly one entry with each of the\n"
420 ":py:data:`ACL_USER_OBJ`, :py:data:`ACL_GROUP_OBJ`, and \n"
421 ":py:data:`ACL_OTHER` tag types. Entries\n"
422 "with :py:data:`ACL_USER` and :py:data:`ACL_GROUP` tag types may\n"
423 "appear zero or more\n"
424 "times in an ACL. An ACL that contains entries of :py:data:`ACL_USER` or\n"
425 ":py:data:`ACL_GROUP` tag types must contain exactly one entry of the \n"
426 ":py:data:`ACL_MASK` tag type. If an ACL contains no entries of\n"
427 ":py:data:`ACL_USER` or :py:data:`ACL_GROUP` tag types, the\n"
428 ":py:data:`ACL_MASK` entry is optional.\n"
430 "All user ID qualifiers must be unique among all entries of\n"
431 "the :py:data:`ACL_USER` tag type, and all group IDs must be unique\n"
432 "among all entries of :py:data:`ACL_GROUP` tag type.\n"
434 "The method will return 1 for a valid ACL and 0 for an invalid one.\n"
435 "This has been chosen because the specification for\n"
436 ":manpage:`acl_valid(3)`\n"
437 "in the POSIX.1e standard documents only one possible value for errno\n"
438 "in case of an invalid ACL, so we can't differentiate between\n"
439 "classes of errors. Other suggestions are welcome.\n"
445 /* Checks the ACL for validity */
446 static PyObject* ACL_valid(PyObject* obj, PyObject* args) {
447 ACL_Object *self = (ACL_Object*) obj;
449 if(acl_valid(self->acl) == -1) {
456 #ifdef HAVE_ACL_COPY_EXT
457 static PyObject* ACL_get_state(PyObject *obj, PyObject* args) {
458 ACL_Object *self = (ACL_Object*) obj;
463 size = acl_size(self->acl);
465 return PyErr_SetFromErrno(PyExc_IOError);
467 if((ret = PyBytes_FromStringAndSize(NULL, size)) == NULL)
469 buf = PyBytes_AsString(ret);
471 if((nsize = acl_copy_ext(buf, self->acl, size)) == -1) {
473 return PyErr_SetFromErrno(PyExc_IOError);
479 static PyObject* ACL_set_state(PyObject *obj, PyObject* args) {
480 ACL_Object *self = (ACL_Object*) obj;
485 /* Parse the argument */
486 if (!PyArg_ParseTuple(args, "s#", &buf, &bufsize))
489 /* Try to import the external representation */
490 if((ptr = acl_copy_int(buf)) == NULL)
491 return PyErr_SetFromErrno(PyExc_IOError);
493 /* Free the old acl. Should we ignore errors here? */
494 if(self->acl != NULL) {
495 if(acl_free(self->acl) == -1)
496 return PyErr_SetFromErrno(PyExc_IOError);
501 /* Return the result */
509 /* tp_iter for the ACL type; since it can be iterated only
510 * destructively, the type is its iterator
512 static PyObject* ACL_iter(PyObject *obj) {
513 ACL_Object *self = (ACL_Object*)obj;
514 self->entry_id = ACL_FIRST_ENTRY;
519 /* the tp_iternext function for the ACL type */
520 static PyObject* ACL_iternext(PyObject *obj) {
521 ACL_Object *self = (ACL_Object*)obj;
522 acl_entry_t the_entry_t;
523 Entry_Object *the_entry_obj;
526 nerr = acl_get_entry(self->acl, self->entry_id, &the_entry_t);
527 self->entry_id = ACL_NEXT_ENTRY;
529 return PyErr_SetFromErrno(PyExc_IOError);
531 /* Docs says this is not needed */
532 /*PyErr_SetObject(PyExc_StopIteration, Py_None);*/
536 the_entry_obj = (Entry_Object*) PyType_GenericNew(&Entry_Type, NULL, NULL);
537 if(the_entry_obj == NULL)
540 the_entry_obj->entry = the_entry_t;
542 the_entry_obj->parent_acl = obj;
543 Py_INCREF(obj); /* For the reference we have in entry->parent */
545 return (PyObject*)the_entry_obj;
548 static char __ACL_delete_entry_doc__[] =
549 "delete_entry(entry)\n"
550 "Deletes an entry from the ACL.\n"
552 ".. note:: Only available with level 2.\n"
554 ":param entry: the Entry object which should be deleted; note that after\n"
555 " this function is called, that object is unusable any longer\n"
556 " and should be deleted\n"
559 /* Deletes an entry from the ACL */
560 static PyObject* ACL_delete_entry(PyObject *obj, PyObject *args) {
561 ACL_Object *self = (ACL_Object*)obj;
564 if (!PyArg_ParseTuple(args, "O!", &Entry_Type, &e))
567 if(acl_delete_entry(self->acl, e->entry) == -1)
568 return PyErr_SetFromErrno(PyExc_IOError);
570 /* Return the result */
575 static char __ACL_calc_mask_doc__[] =
576 "Compute the file group class mask.\n"
578 "The calc_mask() method calculates and sets the permissions \n"
579 "associated with the :py:data:`ACL_MASK` Entry of the ACL.\n"
580 "The value of the new permissions is the union of the permissions \n"
581 "granted by all entries of tag type :py:data:`ACL_GROUP`, \n"
582 ":py:data:`ACL_GROUP_OBJ`, or \n"
583 ":py:data:`ACL_USER`. If the ACL already contains an :py:data:`ACL_MASK`\n"
585 "permissions are overwritten; if it does not contain an \n"
586 ":py:data:`ACL_MASK` Entry, one is added.\n"
588 "The order of existing entries in the ACL is undefined after this \n"
592 /* Updates the mask entry in the ACL */
593 static PyObject* ACL_calc_mask(PyObject *obj, PyObject *args) {
594 ACL_Object *self = (ACL_Object*)obj;
596 if(acl_calc_mask(&self->acl) == -1)
597 return PyErr_SetFromErrno(PyExc_IOError);
599 /* Return the result */
604 static char __ACL_append_doc__[] =
606 "Append a new Entry to the ACL and return it.\n"
608 "This is a convenience function to create a new Entry \n"
609 "and append it to the ACL.\n"
610 "If a parameter of type Entry instance is given, the \n"
611 "entry will be a copy of that one (as if copied with \n"
612 ":py:func:`Entry.copy`), otherwise, the new entry will be empty.\n"
614 ":rtype: :py:class:`Entry`\n"
615 ":returns: the newly created entry\n"
618 /* Convenience method to create a new Entry */
619 static PyObject* ACL_append(PyObject *obj, PyObject *args) {
620 ACL_Object* self = (ACL_Object*) obj;
621 Entry_Object* newentry;
622 Entry_Object* oldentry = NULL;
625 newentry = (Entry_Object*)PyType_GenericNew(&Entry_Type, NULL, NULL);
626 if(newentry == NULL) {
630 if (!PyArg_ParseTuple(args, "|O!", &Entry_Type, &oldentry)) {
635 nret = acl_create_entry(&self->acl, &newentry->entry);
638 return PyErr_SetFromErrno(PyExc_IOError);
641 if(oldentry != NULL) {
642 nret = acl_copy_entry(newentry->entry, oldentry->entry);
645 return PyErr_SetFromErrno(PyExc_IOError);
649 newentry->parent_acl = obj;
652 return (PyObject*)newentry;
655 /***** Entry type *****/
665 /* Pre-declaring the function is more friendly to cpychecker, sigh. */
666 static int get_tag_qualifier(acl_entry_t entry, tag_qual *tq)
667 CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
669 /* Helper function to get the tag and qualifier of an Entry at the
670 same time. This is "needed" because the acl_get_qualifier function
671 returns a pointer to different types, based on the tag value, and
672 thus it's not straightforward to get the right type.
674 It sets a Python exception if an error occurs, and returns -1 in
675 this case. If successful, the tag is set to the tag type, the
676 qualifier (if any) to either the uid or the gid entry in the
677 tag_qual structure, and the return value is 0.
679 static int get_tag_qualifier(acl_entry_t entry, tag_qual *tq) {
682 if(acl_get_tag_type(entry, &tq->tag) == -1) {
683 PyErr_SetFromErrno(PyExc_IOError);
686 if (tq->tag == ACL_USER || tq->tag == ACL_GROUP) {
687 if((p = acl_get_qualifier(entry)) == NULL) {
688 PyErr_SetFromErrno(PyExc_IOError);
691 if (tq->tag == ACL_USER) {
692 tq->uid = *(uid_t*)p;
694 tq->gid = *(gid_t*)p;
701 /* Creation of a new Entry instance */
702 static PyObject* Entry_new(PyTypeObject* type, PyObject* args,
706 newentry = PyType_GenericNew(type, args, keywds);
708 if(newentry != NULL) {
709 ((Entry_Object*)newentry)->entry = NULL;
710 ((Entry_Object*)newentry)->parent_acl = NULL;
716 /* Initialization of a new Entry instance */
717 static int Entry_init(PyObject* obj, PyObject* args, PyObject *keywds) {
718 Entry_Object* self = (Entry_Object*) obj;
719 ACL_Object* parent = NULL;
721 if (!PyArg_ParseTuple(args, "O!", &ACL_Type, &parent))
724 if(acl_create_entry(&parent->acl, &self->entry) == -1) {
725 PyErr_SetFromErrno(PyExc_IOError);
729 self->parent_acl = (PyObject*)parent;
735 /* Free the Entry instance */
736 static void Entry_dealloc(PyObject* obj) {
737 Entry_Object *self = (Entry_Object*) obj;
738 PyObject *err_type, *err_value, *err_traceback;
739 int have_error = PyErr_Occurred() ? 1 : 0;
742 PyErr_Fetch(&err_type, &err_value, &err_traceback);
743 if(self->parent_acl != NULL) {
744 Py_DECREF(self->parent_acl);
745 self->parent_acl = NULL;
748 PyErr_Restore(err_type, err_value, err_traceback);
752 /* Converts the entry to a text format */
753 static PyObject* Entry_str(PyObject *obj) {
754 PyObject *format, *kind;
755 Entry_Object *self = (Entry_Object*) obj;
758 if(get_tag_qualifier(self->entry, &tq) < 0) {
762 format = PyUnicode_FromString("ACL entry for ");
766 case ACL_UNDEFINED_TAG:
767 kind = PyUnicode_FromString("undefined type");
770 kind = PyUnicode_FromString("the owner");
773 kind = PyUnicode_FromString("the group");
776 kind = PyUnicode_FromString("the others");
779 /* FIXME: here and in the group case, we're formatting with
780 unsigned, because there's no way to automatically determine
781 the signed-ness of the types; on Linux(glibc) they're
782 unsigned, so we'll go along with that */
783 kind = PyUnicode_FromFormat("user with uid %u", tq.uid);
786 kind = PyUnicode_FromFormat("group with gid %u", tq.gid);
789 kind = PyUnicode_FromString("the mask");
792 kind = PyUnicode_FromString("UNKNOWN_TAG_TYPE!");
799 PyObject *ret = PyUnicode_Concat(format, kind);
805 /* Sets the tag type of the entry */
806 static int Entry_set_tag_type(PyObject* obj, PyObject* value, void* arg) {
807 Entry_Object *self = (Entry_Object*) obj;
810 PyErr_SetString(PyExc_TypeError,
811 "tag type deletion is not supported");
815 if(!PyLong_Check(value)) {
816 PyErr_SetString(PyExc_TypeError,
817 "tag type must be integer");
820 if(acl_set_tag_type(self->entry, (acl_tag_t)PyLong_AsLong(value)) == -1) {
821 PyErr_SetFromErrno(PyExc_IOError);
828 /* Returns the tag type of the entry */
829 static PyObject* Entry_get_tag_type(PyObject *obj, void* arg) {
830 Entry_Object *self = (Entry_Object*) obj;
833 if (self->entry == NULL) {
834 PyErr_SetString(PyExc_AttributeError, "entry attribute");
837 if(acl_get_tag_type(self->entry, &value) == -1) {
838 PyErr_SetFromErrno(PyExc_IOError);
842 return PyLong_FromLong(value);
845 /* Sets the qualifier (either uid_t or gid_t) for the entry,
846 * usable only if the tag type if ACL_USER or ACL_GROUP
848 static int Entry_set_qualifier(PyObject* obj, PyObject* value, void* arg) {
849 Entry_Object *self = (Entry_Object*) obj;
857 PyErr_SetString(PyExc_TypeError,
858 "qualifier deletion is not supported");
862 if(!PyLong_Check(value)) {
863 PyErr_SetString(PyExc_TypeError,
864 "qualifier must be integer");
867 if((uidgid = PyLong_AsLong(value)) == -1) {
868 if(PyErr_Occurred() != NULL) {
872 /* Due to how acl_set_qualifier takes its argument, we have to do
873 this ugly dance with two variables and a pointer that will
874 point to one of them. */
875 if(acl_get_tag_type(self->entry, &tag) == -1) {
876 PyErr_SetFromErrno(PyExc_IOError);
883 if((long)uid != uidgid) {
884 PyErr_SetString(PyExc_OverflowError, "cannot assign given qualifier");
891 if((long)gid != uidgid) {
892 PyErr_SetString(PyExc_OverflowError, "cannot assign given qualifier");
899 PyErr_SetString(PyExc_TypeError,
900 "can only set qualifiers on ACL_USER or ACL_GROUP entries");
903 if(acl_set_qualifier(self->entry, p) == -1) {
904 PyErr_SetFromErrno(PyExc_IOError);
911 /* Returns the qualifier of the entry */
912 static PyObject* Entry_get_qualifier(PyObject *obj, void* arg) {
913 Entry_Object *self = (Entry_Object*) obj;
917 if (self->entry == NULL) {
918 PyErr_SetString(PyExc_AttributeError, "entry attribute");
921 if(get_tag_qualifier(self->entry, &tq) < 0) {
924 if (tq.tag == ACL_USER) {
926 } else if (tq.tag == ACL_GROUP) {
929 PyErr_SetString(PyExc_TypeError,
930 "given entry doesn't have an user or"
934 return PyLong_FromLong(value);
937 /* Returns the parent ACL of the entry */
938 static PyObject* Entry_get_parent(PyObject *obj, void* arg) {
939 Entry_Object *self = (Entry_Object*) obj;
941 Py_INCREF(self->parent_acl);
942 return self->parent_acl;
945 /* Returns the a new Permset representing the permset of the entry
946 * FIXME: Should return a new reference to the same object, which
947 * should be created at init time!
949 static PyObject* Entry_get_permset(PyObject *obj, void* arg) {
950 Entry_Object *self = (Entry_Object*)obj;
954 p = Permset_new(&Permset_Type, NULL, NULL);
957 ps = (Permset_Object*)p;
958 if(acl_get_permset(self->entry, &ps->permset) == -1) {
959 PyErr_SetFromErrno(PyExc_IOError);
963 ps->parent_entry = obj;
969 /* Sets the permset of the entry to the passed Permset */
970 static int Entry_set_permset(PyObject* obj, PyObject* value, void* arg) {
971 Entry_Object *self = (Entry_Object*)obj;
974 if(!PyObject_IsInstance(value, (PyObject*)&Permset_Type)) {
975 PyErr_SetString(PyExc_TypeError, "argument 1 must be posix1e.Permset");
978 p = (Permset_Object*)value;
979 if(acl_set_permset(self->entry, p->permset) == -1) {
980 PyErr_SetFromErrno(PyExc_IOError);
986 static char __Entry_copy_doc__[] =
988 "Copies an ACL entry.\n"
990 "This method sets all the parameters to those of another\n"
991 "entry (either of the same ACL or belonging to another ACL).\n"
993 ":param Entry src: instance of type Entry\n"
996 /* Sets all the entry parameters to another entry */
997 static PyObject* Entry_copy(PyObject *obj, PyObject *args) {
998 Entry_Object *self = (Entry_Object*)obj;
1001 if(!PyArg_ParseTuple(args, "O!", &Entry_Type, &other))
1004 if(acl_copy_entry(self->entry, other->entry) == -1)
1005 return PyErr_SetFromErrno(PyExc_IOError);
1011 /**** Permset type *****/
1013 /* Creation of a new Permset instance */
1014 static PyObject* Permset_new(PyTypeObject* type, PyObject* args,
1016 PyObject* newpermset;
1018 newpermset = PyType_GenericNew(type, args, keywds);
1020 if(newpermset != NULL) {
1021 ((Permset_Object*)newpermset)->permset = NULL;
1022 ((Permset_Object*)newpermset)->parent_entry = NULL;
1028 /* Initialization of a new Permset instance */
1029 static int Permset_init(PyObject* obj, PyObject* args, PyObject *keywds) {
1030 Permset_Object* self = (Permset_Object*) obj;
1031 Entry_Object* parent = NULL;
1033 if (!PyArg_ParseTuple(args, "O!", &Entry_Type, &parent))
1036 if(acl_get_permset(parent->entry, &self->permset) == -1) {
1037 PyErr_SetFromErrno(PyExc_IOError);
1041 self->parent_entry = (PyObject*)parent;
1047 /* Free the Permset instance */
1048 static void Permset_dealloc(PyObject* obj) {
1049 Permset_Object *self = (Permset_Object*) obj;
1050 PyObject *err_type, *err_value, *err_traceback;
1051 int have_error = PyErr_Occurred() ? 1 : 0;
1054 PyErr_Fetch(&err_type, &err_value, &err_traceback);
1055 if(self->parent_entry != NULL) {
1056 Py_DECREF(self->parent_entry);
1057 self->parent_entry = NULL;
1060 PyErr_Restore(err_type, err_value, err_traceback);
1064 /* Permset string representation */
1065 static PyObject* Permset_str(PyObject *obj) {
1066 Permset_Object *self = (Permset_Object*) obj;
1069 pstr[0] = get_perm(self->permset, ACL_READ) ? 'r' : '-';
1070 pstr[1] = get_perm(self->permset, ACL_WRITE) ? 'w' : '-';
1071 pstr[2] = get_perm(self->permset, ACL_EXECUTE) ? 'x' : '-';
1072 return PyUnicode_FromStringAndSize(pstr, 3);
1075 static char __Permset_clear_doc__[] =
1076 "Clears all permissions from the permission set.\n"
1079 /* Clears all permissions from the permset */
1080 static PyObject* Permset_clear(PyObject* obj, PyObject* args) {
1081 Permset_Object *self = (Permset_Object*) obj;
1083 if(acl_clear_perms(self->permset) == -1)
1084 return PyErr_SetFromErrno(PyExc_IOError);
1086 /* Return the result */
1091 static PyObject* Permset_get_right(PyObject *obj, void* arg) {
1092 Permset_Object *self = (Permset_Object*) obj;
1094 if(get_perm(self->permset, *(acl_perm_t*)arg)) {
1101 static int Permset_set_right(PyObject* obj, PyObject* value, void* arg) {
1102 Permset_Object *self = (Permset_Object*) obj;
1106 if(!PyLong_Check(value)) {
1107 PyErr_SetString(PyExc_ValueError, "invalid argument, an integer"
1111 on = PyLong_AsLong(value);
1113 nerr = acl_add_perm(self->permset, *(acl_perm_t*)arg);
1115 nerr = acl_delete_perm(self->permset, *(acl_perm_t*)arg);
1117 PyErr_SetFromErrno(PyExc_IOError);
1123 static char __Permset_add_doc__[] =
1125 "Add a permission to the permission set.\n"
1127 "This function adds the permission contained in \n"
1128 "the argument perm to the permission set. An attempt \n"
1129 "to add a permission that is already contained in the \n"
1130 "permission set is not considered an error.\n"
1132 ":param perm: a permission (:py:data:`ACL_WRITE`, :py:data:`ACL_READ`,\n"
1133 " :py:data:`ACL_EXECUTE`, ...)\n"
1134 ":raises IOError: in case the argument is not a valid descriptor\n"
1137 static PyObject* Permset_add(PyObject* obj, PyObject* args) {
1138 Permset_Object *self = (Permset_Object*) obj;
1141 if (!PyArg_ParseTuple(args, "i", &right))
1144 if(acl_add_perm(self->permset, (acl_perm_t) right) == -1)
1145 return PyErr_SetFromErrno(PyExc_IOError);
1147 /* Return the result */
1152 static char __Permset_delete_doc__[] =
1154 "Delete a permission from the permission set.\n"
1156 "This function deletes the permission contained in \n"
1157 "the argument perm from the permission set. An attempt \n"
1158 "to delete a permission that is not contained in the \n"
1159 "permission set is not considered an error.\n"
1161 ":param perm: a permission (:py:data:`ACL_WRITE`, :py:data:`ACL_READ`,\n"
1162 " :py:data:`ACL_EXECUTE`, ...)\n"
1163 ":raises IOError: in case the argument is not a valid descriptor\n"
1166 static PyObject* Permset_delete(PyObject* obj, PyObject* args) {
1167 Permset_Object *self = (Permset_Object*) obj;
1170 if (!PyArg_ParseTuple(args, "i", &right))
1173 if(acl_delete_perm(self->permset, (acl_perm_t) right) == -1)
1174 return PyErr_SetFromErrno(PyExc_IOError);
1176 /* Return the result */
1181 static char __Permset_test_doc__[] =
1183 "Test if a permission exists in the permission set.\n"
1185 "The test() function tests if the permission represented by\n"
1186 "the argument perm exists in the permission set.\n"
1188 ":param perm: a permission (:py:data:`ACL_WRITE`, :py:data:`ACL_READ`,\n"
1189 " :py:data:`ACL_EXECUTE`, ...)\n"
1191 ":raises IOError: in case the argument is not a valid descriptor\n"
1194 static PyObject* Permset_test(PyObject* obj, PyObject* args) {
1195 Permset_Object *self = (Permset_Object*) obj;
1199 if (!PyArg_ParseTuple(args, "i", &right))
1202 ret = get_perm(self->permset, (acl_perm_t) right);
1204 return PyErr_SetFromErrno(PyExc_IOError);
1215 static char __ACL_Type_doc__[] =
1216 "Type which represents a POSIX ACL\n"
1218 ".. note:: only one keyword parameter should be provided\n"
1220 ":param string file: creates an ACL representing\n"
1221 " the access ACL of the specified file.\n"
1222 ":param string filedef: creates an ACL representing\n"
1223 " the default ACL of the given directory.\n"
1224 ":param int fd: creates an ACL representing\n"
1225 " the access ACL of the given file descriptor.\n"
1226 ":param string text: creates an ACL from a \n"
1227 " textual description; note the ACL must be valid, which\n"
1228 " means including a mask for extended ACLs, similar to\n"
1229 " ``setfacl --no-mask``\n"
1230 ":param ACL acl: creates a copy of an existing ACL instance.\n"
1231 ":param int mode: creates an ACL from a numeric mode\n"
1232 " (e.g. ``mode=0644``); this is valid only when the C library\n"
1233 " provides the ``acl_from_mode call``, and\n"
1234 " note that no validation is done on the given value.\n"
1236 "If no parameters are passed, an empty ACL will be created; this\n"
1237 "makes sense only when your OS supports ACL modification\n"
1238 "(i.e. it implements full POSIX.1e support), otherwise the ACL won't\n"
1242 /* ACL type methods */
1243 static PyMethodDef ACL_methods[] = {
1244 {"applyto", ACL_applyto, METH_VARARGS, __applyto_doc__},
1245 {"valid", ACL_valid, METH_NOARGS, __valid_doc__},
1247 {"to_any_text", (PyCFunction)ACL_to_any_text, METH_VARARGS | METH_KEYWORDS,
1248 __to_any_text_doc__},
1249 {"check", ACL_check, METH_NOARGS, __check_doc__},
1250 {"equiv_mode", ACL_equiv_mode, METH_NOARGS, __equiv_mode_doc__},
1252 #ifdef HAVE_ACL_COPYEXT
1253 {"__getstate__", ACL_get_state, METH_NOARGS,
1254 "Dumps the ACL to an external format."},
1255 {"__setstate__", ACL_set_state, METH_VARARGS,
1256 "Loads the ACL from an external format."},
1259 {"delete_entry", ACL_delete_entry, METH_VARARGS, __ACL_delete_entry_doc__},
1260 {"calc_mask", ACL_calc_mask, METH_NOARGS, __ACL_calc_mask_doc__},
1261 {"append", ACL_append, METH_VARARGS, __ACL_append_doc__},
1263 {NULL, NULL, 0, NULL}
1267 /* The definition of the ACL Type */
1268 static PyTypeObject ACL_Type = {
1269 PyVarObject_HEAD_INIT(NULL, 0)
1273 ACL_dealloc, /* tp_dealloc */
1277 0, /* formerly tp_compare, in 3.0 deprecated, in
1280 0, /* tp_as_number */
1281 0, /* tp_as_sequence */
1282 0, /* tp_as_mapping */
1285 ACL_str, /* tp_str */
1286 0, /* tp_getattro */
1287 0, /* tp_setattro */
1288 0, /* tp_as_buffer */
1289 Py_TPFLAGS_DEFAULT, /* tp_flags */
1290 __ACL_Type_doc__, /* tp_doc */
1291 0, /* tp_traverse */
1294 ACL_richcompare, /* tp_richcompare */
1296 0, /* tp_richcompare */
1298 0, /* tp_weaklistoffset */
1304 0, /* tp_iternext */
1306 ACL_methods, /* tp_methods */
1311 0, /* tp_descr_get */
1312 0, /* tp_descr_set */
1313 0, /* tp_dictoffset */
1314 ACL_init, /* tp_init */
1316 ACL_new, /* tp_new */
1321 /* Entry type methods */
1322 static PyMethodDef Entry_methods[] = {
1323 {"copy", Entry_copy, METH_VARARGS, __Entry_copy_doc__},
1324 {NULL, NULL, 0, NULL}
1327 static char __Entry_tagtype_doc__[] =
1328 "The tag type of the current entry\n"
1331 " - :py:data:`ACL_UNDEFINED_TAG`\n"
1332 " - :py:data:`ACL_USER_OBJ`\n"
1333 " - :py:data:`ACL_USER`\n"
1334 " - :py:data:`ACL_GROUP_OBJ`\n"
1335 " - :py:data:`ACL_GROUP`\n"
1336 " - :py:data:`ACL_MASK`\n"
1337 " - :py:data:`ACL_OTHER`\n"
1340 static char __Entry_qualifier_doc__[] =
1341 "The qualifier of the current entry\n"
1343 "If the tag type is :py:data:`ACL_USER`, this should be a user id.\n"
1344 "If the tag type if :py:data:`ACL_GROUP`, this should be a group id.\n"
1345 "Else it doesn't matter.\n"
1348 static char __Entry_parent_doc__[] =
1349 "The parent ACL of this entry\n"
1352 static char __Entry_permset_doc__[] =
1353 "The permission set of this ACL entry\n"
1357 static PyGetSetDef Entry_getsets[] = {
1358 {"tag_type", Entry_get_tag_type, Entry_set_tag_type,
1359 __Entry_tagtype_doc__},
1360 {"qualifier", Entry_get_qualifier, Entry_set_qualifier,
1361 __Entry_qualifier_doc__},
1362 {"parent", Entry_get_parent, NULL, __Entry_parent_doc__},
1363 {"permset", Entry_get_permset, Entry_set_permset, __Entry_permset_doc__},
1367 static char __Entry_Type_doc__[] =
1368 "Type which represents an entry in an ACL.\n"
1370 "The type exists only if the OS has full support for POSIX.1e\n"
1371 "Can be created either by:\n"
1373 " >>> e = posix1e.Entry(myACL) # this creates a new entry in the ACL\n"
1374 " >>> e = myACL.append() # another way for doing the same thing\n"
1378 " >>> for entry in myACL:\n"
1379 " ... print entry\n"
1381 "Note that the Entry keeps a reference to its ACL, so even if \n"
1382 "you delete the ACL, it won't be cleaned up and will continue to \n"
1383 "exist until its Entry(ies) will be deleted.\n"
1385 /* The definition of the Entry Type */
1386 static PyTypeObject Entry_Type = {
1387 PyVarObject_HEAD_INIT(NULL, 0)
1389 sizeof(Entry_Object),
1391 Entry_dealloc, /* tp_dealloc */
1397 0, /* tp_as_number */
1398 0, /* tp_as_sequence */
1399 0, /* tp_as_mapping */
1402 Entry_str, /* tp_str */
1403 0, /* tp_getattro */
1404 0, /* tp_setattro */
1405 0, /* tp_as_buffer */
1406 Py_TPFLAGS_DEFAULT, /* tp_flags */
1407 __Entry_Type_doc__, /* tp_doc */
1408 0, /* tp_traverse */
1410 0, /* tp_richcompare */
1411 0, /* tp_weaklistoffset */
1413 0, /* tp_iternext */
1414 Entry_methods, /* tp_methods */
1416 Entry_getsets, /* tp_getset */
1419 0, /* tp_descr_get */
1420 0, /* tp_descr_set */
1421 0, /* tp_dictoffset */
1422 Entry_init, /* tp_init */
1424 Entry_new, /* tp_new */
1427 /* Permset type methods */
1428 static PyMethodDef Permset_methods[] = {
1429 {"clear", Permset_clear, METH_NOARGS, __Permset_clear_doc__, },
1430 {"add", Permset_add, METH_VARARGS, __Permset_add_doc__, },
1431 {"delete", Permset_delete, METH_VARARGS, __Permset_delete_doc__, },
1432 {"test", Permset_test, METH_VARARGS, __Permset_test_doc__, },
1433 {NULL, NULL, 0, NULL}
1436 static char __Permset_execute_doc__[] =
1437 "Execute permission property\n"
1439 "This is a convenience method of retrieving and setting the execute\n"
1440 "permission in the permission set; the \n"
1441 "same effect can be achieved using the functions\n"
1442 "add(), test(), delete(), and those can take any \n"
1443 "permission defined by your platform.\n"
1446 static char __Permset_read_doc__[] =
1447 "Read permission property\n"
1449 "This is a convenience method of retrieving and setting the read\n"
1450 "permission in the permission set; the \n"
1451 "same effect can be achieved using the functions\n"
1452 "add(), test(), delete(), and those can take any \n"
1453 "permission defined by your platform.\n"
1456 static char __Permset_write_doc__[] =
1457 "Write permission property\n"
1459 "This is a convenience method of retrieving and setting the write\n"
1460 "permission in the permission set; the \n"
1461 "same effect can be achieved using the functions\n"
1462 "add(), test(), delete(), and those can take any \n"
1463 "permission defined by your platform.\n"
1466 /* Permset getset */
1467 static PyGetSetDef Permset_getsets[] = {
1468 {"execute", Permset_get_right, Permset_set_right,
1469 __Permset_execute_doc__, &holder_ACL_EXECUTE},
1470 {"read", Permset_get_right, Permset_set_right,
1471 __Permset_read_doc__, &holder_ACL_READ},
1472 {"write", Permset_get_right, Permset_set_right,
1473 __Permset_write_doc__, &holder_ACL_WRITE},
1477 static char __Permset_Type_doc__[] =
1478 "Type which represents the permission set in an ACL entry\n"
1480 "The type exists only if the OS has full support for POSIX.1e\n"
1481 "Can be retrieved either by:\n\n"
1482 ">>> perms = myEntry.permset\n"
1485 ">>> perms = posix1e.Permset(myEntry)\n"
1487 "Note that the Permset keeps a reference to its Entry, so even if \n"
1488 "you delete the entry, it won't be cleaned up and will continue to \n"
1489 "exist until its Permset will be deleted.\n"
1492 /* The definition of the Permset Type */
1493 static PyTypeObject Permset_Type = {
1494 PyVarObject_HEAD_INIT(NULL, 0)
1496 sizeof(Permset_Object),
1498 Permset_dealloc, /* tp_dealloc */
1504 0, /* tp_as_number */
1505 0, /* tp_as_sequence */
1506 0, /* tp_as_mapping */
1509 Permset_str, /* tp_str */
1510 0, /* tp_getattro */
1511 0, /* tp_setattro */
1512 0, /* tp_as_buffer */
1513 Py_TPFLAGS_DEFAULT, /* tp_flags */
1514 __Permset_Type_doc__,/* tp_doc */
1515 0, /* tp_traverse */
1517 0, /* tp_richcompare */
1518 0, /* tp_weaklistoffset */
1520 0, /* tp_iternext */
1521 Permset_methods, /* tp_methods */
1523 Permset_getsets, /* tp_getset */
1526 0, /* tp_descr_get */
1527 0, /* tp_descr_set */
1528 0, /* tp_dictoffset */
1529 Permset_init, /* tp_init */
1531 Permset_new, /* tp_new */
1536 /* Module methods */
1538 static char __deletedef_doc__[] =
1539 "delete_default(path)\n"
1540 "Delete the default ACL from a directory.\n"
1542 "This function deletes the default ACL associated with\n"
1543 "a directory (the ACL which will be ANDed with the mode\n"
1544 "parameter to the open, creat functions).\n"
1546 ":param string path: the directory whose default ACL should be deleted\n"
1549 /* Deletes the default ACL from a directory */
1550 static PyObject* aclmodule_delete_default(PyObject* obj, PyObject* args) {
1553 /* Parse the arguments */
1554 if (!PyArg_ParseTuple(args, "et", NULL, &filename))
1557 if(acl_delete_def_file(filename) == -1) {
1558 return PyErr_SetFromErrnoWithFilename(PyExc_IOError, filename);
1561 /* Return the result */
1567 static char __has_extended_doc__[] =
1568 "has_extended(item)\n"
1569 "Check if a file or file handle has an extended ACL.\n"
1571 ":param item: either a file name or a file-like object or an integer;\n"
1572 " it represents the file-system object on which to act\n"
1575 /* Check for extended ACL a file or fd */
1576 static PyObject* aclmodule_has_extended(PyObject* obj, PyObject* args) {
1577 PyObject *item, *tmp;
1581 if (!PyArg_ParseTuple(args, "O", &item))
1584 if((fd = PyObject_AsFileDescriptor(item)) != -1) {
1585 if((nret = acl_extended_fd(fd)) == -1) {
1586 PyErr_SetFromErrno(PyExc_IOError);
1589 // PyObject_AsFileDescriptor sets an error when failing, so clear
1590 // it such that further code works; some method lookups fail if an
1591 // error already occured when called, which breaks at least
1592 // PyOS_FSPath (called by FSConverter).
1594 if(PyUnicode_FSConverter(item, &tmp)) {
1595 char *filename = PyBytes_AS_STRING(tmp);
1596 if ((nret = acl_extended_file(filename)) == -1) {
1597 PyErr_SetFromErrnoWithFilename(PyExc_IOError, filename);
1608 return PyBool_FromLong(nret);
1613 /* The module methods */
1614 static PyMethodDef aclmodule_methods[] = {
1615 {"delete_default", aclmodule_delete_default, METH_VARARGS,
1618 {"has_extended", aclmodule_has_extended, METH_VARARGS,
1619 __has_extended_doc__},
1621 {NULL, NULL, 0, NULL}
1624 static char __posix1e_doc__[] =
1625 "POSIX.1e ACLs manipulation\n"
1626 "==========================\n"
1628 "This module provides support for manipulating POSIX.1e ACLS\n"
1630 "Depending on the operating system support for POSIX.1e, \n"
1631 "the ACL type will have more or less capabilities:\n\n"
1632 " - level 1, only basic support, you can create\n"
1633 " ACLs from files and text descriptions;\n"
1634 " once created, the type is immutable\n"
1635 " - level 2, complete support, you can alter\n"
1636 " the ACL once it is created\n"
1638 "Also, in level 2, more types are available, corresponding\n"
1639 "to acl_entry_t (the Entry type), acl_permset_t (the Permset type).\n"
1641 "The existence of level 2 support and other extensions can be\n"
1642 "checked by the constants:\n\n"
1643 " - :py:data:`HAS_ACL_ENTRY` for level 2 and the Entry/Permset classes\n"
1644 " - :py:data:`HAS_ACL_FROM_MODE` for ``ACL(mode=...)`` usage\n"
1645 " - :py:data:`HAS_ACL_CHECK` for the :py:func:`ACL.check` function\n"
1646 " - :py:data:`HAS_EXTENDED_CHECK` for the module-level\n"
1647 " :py:func:`has_extended` function\n"
1648 " - :py:data:`HAS_EQUIV_MODE` for the :py:func:`ACL.equiv_mode` method\n"
1652 ">>> import posix1e\n"
1653 ">>> acl1 = posix1e.ACL(file=\"file.txt\") \n"
1659 ">>> b = posix1e.ACL(text=\"u::rx,g::-,o::-\")\n"
1665 ">>> b.applyto(\"file.txt\")\n"
1666 ">>> print posix1e.ACL(file=\"file.txt\")\n"
1672 ".. py:data:: ACL_USER\n\n"
1673 " Denotes a specific user entry in an ACL.\n"
1675 ".. py:data:: ACL_USER_OBJ\n\n"
1676 " Denotes the user owner entry in an ACL.\n"
1678 ".. py:data:: ACL_GROUP\n\n"
1679 " Denotes the a group entry in an ACL.\n"
1681 ".. py:data:: ACL_GROUP_OBJ\n\n"
1682 " Denotes the group owner entry in an ACL.\n"
1684 ".. py:data:: ACL_OTHER\n\n"
1685 " Denotes the 'others' entry in an ACL.\n"
1687 ".. py:data:: ACL_MASK\n\n"
1688 " Denotes the mask entry in an ACL, representing the maximum\n"
1689 " access granted other users, the owner group and other groups.\n"
1691 ".. py:data:: ACL_UNDEFINED_TAG\n\n"
1692 " An undefined tag in an ACL.\n"
1694 ".. py:data:: ACL_READ\n\n"
1695 " Read permission in a permission set.\n"
1697 ".. py:data:: ACL_WRITE\n\n"
1698 " Write permission in a permission set.\n"
1700 ".. py:data:: ACL_EXECUTE\n\n"
1701 " Execute permission in a permission set.\n"
1703 ".. py:data:: HAS_ACL_ENTRY\n\n"
1704 " denotes support for level 2 and the Entry/Permset classes\n"
1706 ".. py:data:: HAS_ACL_FROM_MODE\n\n"
1707 " denotes support for building an ACL from an octal mode\n"
1709 ".. py:data:: HAS_ACL_CHECK\n\n"
1710 " denotes support for extended checks of an ACL's validity\n"
1712 ".. py:data:: HAS_EXTENDED_CHECK\n\n"
1713 " denotes support for checking whether an ACL is basic or extended\n"
1715 ".. py:data:: HAS_EQUIV_MODE\n\n"
1716 " denotes support for the equiv_mode function\n"
1720 static struct PyModuleDef posix1emodule = {
1721 PyModuleDef_HEAD_INIT,
1729 PyInit_posix1e(void)
1733 Py_TYPE(&ACL_Type) = &PyType_Type;
1734 if(PyType_Ready(&ACL_Type) < 0)
1738 Py_TYPE(&Entry_Type) = &PyType_Type;
1739 if(PyType_Ready(&Entry_Type) < 0)
1742 Py_TYPE(&Permset_Type) = &PyType_Type;
1743 if(PyType_Ready(&Permset_Type) < 0)
1747 m = PyModule_Create(&posix1emodule);
1751 d = PyModule_GetDict(m);
1755 Py_INCREF(&ACL_Type);
1756 if (PyDict_SetItemString(d, "ACL",
1757 (PyObject *) &ACL_Type) < 0)
1760 /* 23.3.6 acl_type_t values */
1761 PyModule_AddIntConstant(m, "ACL_TYPE_ACCESS", ACL_TYPE_ACCESS);
1762 PyModule_AddIntConstant(m, "ACL_TYPE_DEFAULT", ACL_TYPE_DEFAULT);
1766 Py_INCREF(&Entry_Type);
1767 if (PyDict_SetItemString(d, "Entry",
1768 (PyObject *) &Entry_Type) < 0)
1771 Py_INCREF(&Permset_Type);
1772 if (PyDict_SetItemString(d, "Permset",
1773 (PyObject *) &Permset_Type) < 0)
1776 /* 23.2.2 acl_perm_t values */
1777 PyModule_AddIntConstant(m, "ACL_READ", ACL_READ);
1778 PyModule_AddIntConstant(m, "ACL_WRITE", ACL_WRITE);
1779 PyModule_AddIntConstant(m, "ACL_EXECUTE", ACL_EXECUTE);
1781 /* 23.2.5 acl_tag_t values */
1782 PyModule_AddIntConstant(m, "ACL_UNDEFINED_TAG", ACL_UNDEFINED_TAG);
1783 PyModule_AddIntConstant(m, "ACL_USER_OBJ", ACL_USER_OBJ);
1784 PyModule_AddIntConstant(m, "ACL_USER", ACL_USER);
1785 PyModule_AddIntConstant(m, "ACL_GROUP_OBJ", ACL_GROUP_OBJ);
1786 PyModule_AddIntConstant(m, "ACL_GROUP", ACL_GROUP);
1787 PyModule_AddIntConstant(m, "ACL_MASK", ACL_MASK);
1788 PyModule_AddIntConstant(m, "ACL_OTHER", ACL_OTHER);
1790 /* Document extended functionality via easy-to-use constants */
1791 PyModule_AddIntConstant(m, "HAS_ACL_ENTRY", 1);
1793 PyModule_AddIntConstant(m, "HAS_ACL_ENTRY", 0);
1797 /* Linux libacl specific acl_to_any_text constants */
1798 PyModule_AddIntConstant(m, "TEXT_ABBREVIATE", TEXT_ABBREVIATE);
1799 PyModule_AddIntConstant(m, "TEXT_NUMERIC_IDS", TEXT_NUMERIC_IDS);
1800 PyModule_AddIntConstant(m, "TEXT_SOME_EFFECTIVE", TEXT_SOME_EFFECTIVE);
1801 PyModule_AddIntConstant(m, "TEXT_ALL_EFFECTIVE", TEXT_ALL_EFFECTIVE);
1802 PyModule_AddIntConstant(m, "TEXT_SMART_INDENT", TEXT_SMART_INDENT);
1804 /* Linux libacl specific acl_check constants */
1805 PyModule_AddIntConstant(m, "ACL_MULTI_ERROR", ACL_MULTI_ERROR);
1806 PyModule_AddIntConstant(m, "ACL_DUPLICATE_ERROR", ACL_DUPLICATE_ERROR);
1807 PyModule_AddIntConstant(m, "ACL_MISS_ERROR", ACL_MISS_ERROR);
1808 PyModule_AddIntConstant(m, "ACL_ENTRY_ERROR", ACL_ENTRY_ERROR);
1810 #define LINUX_EXT_VAL 1
1812 #define LINUX_EXT_VAL 0
1814 /* declare the Linux extensions */
1815 PyModule_AddIntConstant(m, "HAS_ACL_FROM_MODE", LINUX_EXT_VAL);
1816 PyModule_AddIntConstant(m, "HAS_ACL_CHECK", LINUX_EXT_VAL);
1817 PyModule_AddIntConstant(m, "HAS_EXTENDED_CHECK", LINUX_EXT_VAL);
1818 PyModule_AddIntConstant(m, "HAS_EQUIV_MODE", LINUX_EXT_VAL);