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/***************************************************************************
*
* libpolkit-rbac.c : RBAC implementation of the libpolkit API
*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* Licensed under the Academic Free License version 2.1
*
**************************************************************************/
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <pwd.h>
#include <grp.h>
#include <unistd.h>
#include <errno.h>
#include <auth_attr.h>
#include <secdb.h>
#include <glib.h>
#include <dbus/dbus-glib.h>
#include "libpolkit.h"
#define LIBPOLKIT_MAGIC 0x3117beef
#ifdef __SUNPRO_C
#define __FUNCTION__ __func__
#endif
#define LIBPOLKIT_CHECK_CONTEXT(_ctx_, _ret_) \
do { \
if (_ctx_ == NULL) { \
g_warning ("%s: given LibPolKitContext is NULL", \
__FUNCTION__); \
return _ret_; \
} \
if (_ctx_->magic != LIBPOLKIT_MAGIC) { \
g_warning ("%s: given LibPolKitContext is invalid (read magic 0x%08x, should be 0x%08x)", \
__FUNCTION__, _ctx_->magic, LIBPOLKIT_MAGIC); \
return _ret_; \
} \
} while(0)
struct LibPolKitContext_s
{
guint32 magic;
};
/** Get a new context.
*
* @return Pointer to new context or NULL if an error occured
*/
LibPolKitContext *
libpolkit_new_context (DBusConnection *connection)
{
LibPolKitContext *ctx;
ctx = g_new0 (LibPolKitContext, 1);
ctx->magic = LIBPOLKIT_MAGIC;
return ctx;
}
/** Free a context
*
* @param ctx The context obtained from libpolkit_new_context
* @return Pointer to new context or NULL if an error occured
*/
gboolean
libpolkit_free_context (LibPolKitContext *ctx)
{
LIBPOLKIT_CHECK_CONTEXT (ctx, FALSE);
ctx->magic = 0;
g_free (ctx);
return TRUE;
}
LibPolKitResult
libpolkit_get_allowed_resources_for_privilege_for_uid (LibPolKitContext *ctx,
const char *user,
const char *privilege,
GList **resources,
GList **restrictions,
int *num_non_temporary)
{
LibPolKitResult res;
char **resource_list;
int num_resources;
char **restriction_list;
int num_restrictions;
LIBPOLKIT_CHECK_CONTEXT (ctx, LIBPOLKIT_RESULT_INVALID_CONTEXT);
res = LIBPOLKIT_RESULT_ERROR;
*resources = NULL;
*restrictions = NULL;
res = LIBPOLKIT_RESULT_OK;
return res;
}
LibPolKitResult
libpolkit_is_uid_allowed_for_privilege (LibPolKitContext *ctx,
const char *system_bus_unique_name,
const char *user,
const char *privilege,
const char *resource,
gboolean *out_is_allowed,
gboolean *out_is_temporary,
char **out_is_privileged_but_restricted_to_system_bus_unique_name)
{
LibPolKitResult res;
const char *myresource = "";
const char *mysystem_bus_unique_name = "";
char *but_restricted_to = NULL;
uid_t uid;
struct passwd *pw;
char *authname;
int i;
gboolean authname_free = FALSE;
LIBPOLKIT_CHECK_CONTEXT (ctx, LIBPOLKIT_RESULT_INVALID_CONTEXT);
uid = (uid_t)atol (user);
if ((pw = getpwuid (uid)) == NULL) {
*out_is_allowed = FALSE;
*out_is_temporary = FALSE;
return LIBPOLKIT_RESULT_NO_SUCH_USER;
}
/* map PolicyKit privilege to RBAC authorization */
if (strcmp (privilege, "hal-storage-removable-mount") == 0) {
authname = "solaris.device.mount.removable";
} else if (strcmp (privilege, "hal-storage-removable-mount-all-options") == 0) {
authname = "solaris.device.mount.alloptions.removable";
} else if (strcmp (privilege, "hal-storage-fixed-mount") == 0) {
authname = "solaris.device.mount.fixed";
} else if (strcmp (privilege, "hal-storage-fixed-mount-all-options") == 0) {
authname = "solaris.device.mount.alloptions.fixed";
} else if (strcmp(privilege, "hal-power-suspend") == 0) {
authname = "solaris.system.power.suspend.ram";
} else if (strcmp(privilege, "hal-power-hibernate") == 0) {
authname = "solaris.system.power.suspend.disk";
} else if ((strcmp(privilege, "hal-power-shutdown") == 0) ||
(strcmp(privilege, "hal-power-reboot") == 0)) {
authname = "solaris.system.shutdown";
} else if (strcmp(privilege, "hal-power-cpu") == 0) {
authname = "solaris.system.power.cpu";
} else if (strcmp(privilege, "hal-power-brightness") == 0) {
authname = "solaris.system.power.brightness";
} else if (strcmp (privilege, "hal-power-cpu") == 0) {
authname = "solaris.system.power.cpu";
} else {
/* replace '-' with '.' */
authname = g_strdup (privilege);
authname_free = TRUE;
for (i = 0; i < strlen (authname); i++) {
if (authname[i] == '-') {
authname[i] = '.';
}
}
}
*out_is_allowed = (chkauthattr(authname, pw->pw_name) != 0);
*out_is_temporary = FALSE;
if (authname_free) {
g_free(authname);
}
return LIBPOLKIT_RESULT_OK;
}
LibPolKitResult
libpolkit_get_privilege_list (LibPolKitContext *ctx,
GList **result)
{
LibPolKitResult res;
char **privilege_list;
int num_privileges = 0;
int i;
LIBPOLKIT_CHECK_CONTEXT (ctx, LIBPOLKIT_RESULT_INVALID_CONTEXT);
*result = NULL;
for (i = 0; i < num_privileges; i++) {
*result = g_list_append (*result, g_strdup (privilege_list[i]));
}
res = LIBPOLKIT_RESULT_OK;
return res;
}
LibPolKitResult
libpolkit_revoke_temporary_privilege (LibPolKitContext *ctx,
const char *user,
const char *privilege,
const char *resource,
gboolean *result)
{
return LIBPOLKIT_RESULT_OK;
}
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