This patch provides Python ucred support. It may be contributed upstream at
some point, but the suitability (or lack thereof) has not yet been determined.
new file mode 100644
--- /dev/null
@@ -0,0 +1,404 @@
+/*
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
+ */
+
+#include <Python.h>
+
+#include <stdio.h>
+#include <priv.h>
+#include <ucred.h>
+#include <ctype.h>
+#include <tsol/label.h>
+
+typedef struct {
+ PyObject_HEAD
+ ucred_t *ucred;
+} pyucred_t;
+
+#define pyucred_getlongid(name, type) \
+ static PyObject * \
+ pyucred_get##name(pyucred_t *uc) \
+ { \
+ type val; \
+ \
+ if (uc->ucred == NULL) { \
+ errno = EINVAL; \
+ PyErr_SetFromErrno(PyExc_OSError); \
+ return (NULL); \
+ } \
+ \
+ if ((val = ucred_get##name(uc->ucred)) == -1) { \
+ PyErr_SetFromErrno(PyExc_OSError); \
+ return (NULL); \
+ } \
+ \
+ return (Py_BuildValue("l", (long)val)); \
+ }
+
+pyucred_getlongid(euid, uid_t)
+pyucred_getlongid(ruid, uid_t)
+pyucred_getlongid(suid, uid_t)
+pyucred_getlongid(egid, gid_t)
+pyucred_getlongid(rgid, gid_t)
+pyucred_getlongid(sgid, gid_t)
+pyucred_getlongid(pid, pid_t)
+pyucred_getlongid(projid, projid_t)
+pyucred_getlongid(zoneid, zoneid_t)
+
+static PyObject *
+pyucred_getgroups(pyucred_t *uc)
+{
+ const gid_t *groups;
+ PyObject *list;
+ int len;
+ int i;
+
+ if (uc->ucred == NULL) {
+ errno = EINVAL;
+ PyErr_SetFromErrno(PyExc_OSError);
+ return (NULL);
+ }
+
+ if ((len = ucred_getgroups(uc->ucred, &groups)) == -1) {
+ PyErr_SetFromErrno(PyExc_OSError);
+ return (NULL);
+ }
+
+ if ((list = PyList_New(len)) == NULL)
+ return (NULL);
+
+ for (i = 0; i < len; i++) {
+ PyObject *gid = Py_BuildValue("l", (long)groups[i]);
+ if (PyList_SetItem(list, i, gid) == -1)
+ return (NULL);
+ }
+
+ return (list);
+}
+
+static PyObject *
+pyucred_getlabel(pyucred_t *uc)
+{
+ m_label_t *label;
+ PyObject *ret;
+ char *str;
+
+ if (uc->ucred == NULL) {
+ errno = EINVAL;
+ PyErr_SetFromErrno(PyExc_OSError);
+ return (NULL);
+ }
+
+ label = ucred_getlabel(uc->ucred);
+ if (label == NULL)
+ return (Py_BuildValue("s", ""));
+
+ if (label_to_str(label, &str, M_LABEL, DEF_NAMES) == -1) {
+ PyErr_SetFromErrno(PyExc_OSError);
+ return (NULL);
+ }
+
+ ret = Py_BuildValue("s", str);
+ free(str);
+ return (ret);
+}
+
+static PyObject *
+pyucred_getpflags(pyucred_t *uc, PyObject *args, PyObject *kwargs)
+{
+ static char *kwlist[] = { "flags", NULL };
+ uint_t flags;
+
+ if (uc->ucred == NULL) {
+ errno = EINVAL;
+ PyErr_SetFromErrno(PyExc_OSError);
+ return (NULL);
+ }
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i", kwlist,
+ &flags))
+ return (NULL);
+
+ if ((flags = ucred_getpflags(uc->ucred, flags)) == (uint_t)-1) {
+ PyErr_SetFromErrno(PyExc_OSError);
+ return (NULL);
+ }
+
+ return (Py_BuildValue("i", flags));
+}
+
+static PyObject *
+pyucred_has_priv(pyucred_t *uc, PyObject *args, PyObject *kwargs)
+{
+ static char *kwlist[] = { "set", "priv", NULL };
+ const priv_set_t *privs;
+ const char *set;
+ const char *priv;
+
+ if (uc->ucred == NULL) {
+ errno = EINVAL;
+ PyErr_SetFromErrno(PyExc_OSError);
+ return (NULL);
+ }
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "ss", kwlist,
+ &set, &priv))
+ return (NULL);
+
+ if ((privs = ucred_getprivset(uc->ucred, set)) == NULL) {
+ PyErr_SetFromErrno(PyExc_OSError);
+ return (NULL);
+ }
+
+ if (priv_ismember(privs, priv)) {
+ Py_INCREF(Py_True);
+ return Py_True;
+ }
+
+ Py_INCREF(Py_False);
+ return Py_False;
+}
+
+PyDoc_STRVAR(pyucred_getlabel_doc,
+ "getlabel() -> string\n"
+ "\n"
+ "Return the Trusted Extensions label string, or an "
+ "empty string if not available. The label string is "
+ "converted using the default name and M_LABEL (human-readable). "
+ "Raises OSError. See label_to_str(3TSOL).");
+PyDoc_STRVAR(pyucred_getpflags_doc,
+ "getpflags(flags) -> int\n"
+ "\n"
+ "Return the values of the specified privilege flags.");
+PyDoc_STRVAR(pyucred_has_priv_doc,
+ "has_priv(set, priv) -> bool\n"
+ "\n"
+ "Return true if the given privilege is set in the "
+ "specified set. Raises OSError if the set or privilege is "
+ "invalid, or a problem occurs.\n"
+ "\n"
+ "Currently, the following privilege sets are defined, as "
+ "described in privileges(5):\n"
+ "\n"
+ "Effective\n"
+ "Permitted\n"
+ "Inheritable\n"
+ "Limit\n");
+
+static PyMethodDef pyucred_methods[] = {
+ { "geteuid", (PyCFunction)pyucred_geteuid, METH_NOARGS,
+ "Return the effective user ID." },
+ { "getruid", (PyCFunction)pyucred_getruid, METH_NOARGS,
+ "Return the real user ID." },
+ { "getsuid", (PyCFunction)pyucred_getsuid, METH_NOARGS,
+ "Return the saved user ID." },
+ { "getegid", (PyCFunction)pyucred_getegid, METH_NOARGS,
+ "Return the effective group ID." },
+ { "getrgid", (PyCFunction)pyucred_getrgid, METH_NOARGS,
+ "Return the real group ID." },
+ { "getsgid", (PyCFunction)pyucred_getsgid, METH_NOARGS,
+ "Return the saved group ID." },
+ { "getpid", (PyCFunction)pyucred_getpid, METH_NOARGS,
+ "Return the effective user ID." },
+ { "getprojid", (PyCFunction)pyucred_getprojid, METH_NOARGS,
+ "Return the project ID." },
+ { "getzoneid", (PyCFunction)pyucred_getzoneid, METH_NOARGS,
+ "Return the zone ID." },
+ { "getgroups", (PyCFunction)pyucred_getgroups, METH_NOARGS,
+ "Return a list of group IDs." },
+ { "getlabel", (PyCFunction)pyucred_getlabel, METH_NOARGS,
+ pyucred_getlabel_doc },
+ { "getpflags", (PyCFunction)pyucred_getpflags,
+ METH_VARARGS|METH_KEYWORDS, pyucred_getpflags_doc },
+ { "has_priv", (PyCFunction)pyucred_has_priv,
+ METH_VARARGS|METH_KEYWORDS, pyucred_has_priv_doc },
+ { NULL, NULL }
+};
+
+static int
+pyucred_init(PyObject *self, PyObject *args, PyObject *kwargs)
+{
+ pyucred_t *uc = (pyucred_t *)self;
+ uc->ucred = NULL;
+ return (0);
+}
+
+static void
+pyucred_dealloc(PyObject *self)
+{
+ pyucred_t *uc = (pyucred_t *)self;
+ if (uc->ucred != NULL)
+ ucred_free(uc->ucred);
+ Py_TYPE(self)->tp_free(self);
+}
+
+static PyTypeObject pyucred_type = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ "ucred.ucred", /*tp_name*/
+ sizeof (pyucred_t), /*tp_basicsize*/
+ 0, /*tp_itemsize*/
+ pyucred_dealloc, /*tp_dealloc*/
+ 0, /*tp_print*/
+ 0, /*tp_getattr*/
+ 0, /*tp_setattr*/
+ 0, /*tp_reserved*/
+ 0, /*tp_repr*/
+ 0, /*tp_as_number*/
+ 0, /*tp_as_sequence*/
+ 0, /*tp_as_mapping*/
+ 0, /*tp_hash */
+ 0, /*tp_call*/
+ 0, /*tp_str*/
+ 0, /*tp_getattro*/
+ 0, /*tp_setattro*/
+ 0, /*tp_as_buffer*/
+ Py_TPFLAGS_DEFAULT, /*tp_flags*/
+ "user credentials", /*tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ pyucred_methods, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ (initproc)pyucred_init, /* tp_init */
+ 0, /* tp_alloc */
+ 0, /* tp_new */
+ 0, /* tp_free */
+ 0, /* tp_is_gc */
+};
+
+static PyObject *
+pyucred_new(const ucred_t *uc)
+{
+ pyucred_t *self;
+
+ self = (pyucred_t *)PyObject_CallObject((PyObject *)&pyucred_type, NULL);
+
+ if (self == NULL)
+ return (NULL);
+
+ self->ucred = (ucred_t *)uc;
+
+ return ((PyObject *)self);
+}
+
+static PyObject *
+pyucred_get(PyObject *o, PyObject *args, PyObject *kwargs)
+{
+ static char *kwlist[] = { "pid", NULL };
+ ucred_t *ucred = NULL;
+ int pid;
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i", kwlist,
+ &pid))
+ return (NULL);
+
+ ucred = ucred_get(pid);
+
+ if (ucred == NULL) {
+ PyErr_SetFromErrno(PyExc_OSError);
+ return (NULL);
+ }
+
+ return (pyucred_new(ucred));
+}
+
+static PyObject *
+pyucred_getpeer(PyObject *o, PyObject *args, PyObject *kwargs)
+{
+ static char *kwlist[] = { "fd", NULL };
+ ucred_t *ucred = NULL;
+ int fd;
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i", kwlist,
+ &fd))
+ return (NULL);
+
+ if (getpeerucred(fd, &ucred) == -1) {
+ PyErr_SetFromErrno(PyExc_OSError);
+ return (NULL);
+ }
+
+ return (pyucred_new(ucred));
+}
+
+PyDoc_STRVAR(pyucred_get_doc,
+ "get(pid) -> ucred\n"
+ "\n"
+ "Return the credentials of the specified process ID. "
+ "Raises OSError. See ucred_get(3C).");
+PyDoc_STRVAR(pyucred_getpeer_doc,
+ "getpeer(fd) -> ucred\n"
+ "\n"
+ "Return the credentials of the peer endpoint of a "
+ "connection-oriented socket (SOCK_STREAM) or STREAM fd "
+ "at the time the endpoint was created or the connection "
+ "was established. Raises OSError. See getpeerucred(3C).");
+
+static struct PyMethodDef pyucred_module_methods[] = {
+ { "get", (PyCFunction) pyucred_get,
+ METH_VARARGS|METH_KEYWORDS, pyucred_get_doc },
+ { "getpeer", (PyCFunction) pyucred_getpeer,
+ METH_VARARGS|METH_KEYWORDS, pyucred_getpeer_doc },
+ { NULL, NULL, 0, NULL }
+};
+
+PyDoc_STRVAR(pyucred_module_doc,
+ "This module provides an interface to the user credential access "
+ "methods, obtainable either by process ID or file descriptor.");
+
+PyMODINIT_FUNC
+PyInit_ucred (void)
+{
+ PyObject *m;
+
+ static struct PyModuleDef moduledef = {
+ PyModuleDef_HEAD_INIT,
+ "ucred",
+ pyucred_module_doc,
+ -1,
+ pyucred_module_methods,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ };
+
+ m = PyModule_Create(&moduledef);
+
+ pyucred_type.tp_new = PyType_GenericNew;
+ if (PyType_Ready(&pyucred_type) < 0)
+ return NULL;
+
+ Py_INCREF(&pyucred_type);
+
+ PyModule_AddObject(m, "ucred", (PyObject *)&pyucred_type);
+
+ return m;
+}
--- Python-3.5.2/setup.py.~3~ 2016-07-08 06:54:05.078859457 -0700
+++ Python-3.5.2/setup.py 2016-07-08 06:54:05.130776372 -0700
@@ -1565,6 +1565,13 @@
# Stefan Krah's _decimal module
exts.append(self._decimal_ext())
+ # ucred module (Solaris)
+ ucred_inc = find_file('ucred.h', [], inc_dirs)
+ tsol_inc = find_file('tsol/label.h', [], inc_dirs)
+ if ucred_inc is not None and tsol_inc is not None:
+ exts.append( Extension('ucred', ['ucred.c'],
+ libraries = ['tsol']) )
+
# Thomas Heller's _ctypes module
self.detect_ctypes(inc_dirs, lib_dirs)
--- /dev/null 2011-02-12 03:14:16.000000000 -0600
+++ Python-2.6.4/Lib/test/ucredtest.py 2011-01-20 13:52:42.945657919 -0600
@@ -0,0 +1,45 @@
+
+import ucred
+import os
+
+
+print("pid = %d" % uc.getpid())
+print("euid = %d" % uc.geteuid())
+print("ruid = %d" % uc.getruid())
+print("suid = %d" % uc.getsuid())
+print("egid = %d" % uc.getegid())
+print("rgid = %d" % uc.getrgid())
+print("sgid = %d" % uc.getsgid())
+print("zoneid = %d" % uc.getzoneid())
+print("projid = %d" % uc.getprojid())
+print("groups = %s" % uc.getgroups())
+print("label = %s" % uc.getlabel())
+
+print("getpflags(0x1) = %d" % uc.getpflags(0x1))
+print("getpflags(0x2) = %d" % uc.getpflags(0x2))
+print("has_priv(Effective, proc_fork) = %d" % uc.has_priv("Effective", "proc_fork"))
+print("has_priv(Permitted, proc_fork) = %d" % uc.has_priv("Permitted", "proc_fork"))
+print("has_priv(Inheritable, proc_fork) = %d" % uc.has_priv("Inheritable", "proc_fork"))
+print("has_priv(Limit, file_setid) = %d" % uc.has_priv("Limit", "file_setid"))
+print("has_priv(Effective, file_setid) = %d" % uc.has_priv("Effective", "file_setid"))
+try:
+ uc.has_priv("Effective", "proc_bork")
+except OSError as e:
+ print(e)
+try:
+ uc.has_priv("Defective", "proc_fork")
+except OSError as e:
+ print(e)
+try:
+ uc.has_priv("Defective", "proc_bork")
+except OSError as e:
+ print(e)
+
+del uc
+uc = ucred.ucred()
+try:
+ uc.getpid()
+except OSError as e:
+ print(e)