diff -up at-3.1.14/atd.c.selinux at-3.1.14/atd.c

--- at-3.1.14/atd.c.selinux	2013-09-26 15:06:55.177049852 +0200

+++ at-3.1.14/atd.c	2013-09-26 16:33:23.981355661 +0200

@@ -87,6 +87,14 @@

 #define LOG_ATD        LOG_DAEMON

 #endif

+#ifdef WITH_SELINUX

+#include <selinux/selinux.h>

+#include <selinux/get_context_list.h>

+int selinux_enabled=0;

+#include <selinux/flask.h>

+#include <selinux/av_permissions.h>

+#endif

+

 /* Macros */

 #define BATCH_INTERVAL_DEFAULT 60

@@ -191,6 +199,68 @@ myfork()

 #define fork myfork

 #endif

+#ifdef WITH_SELINUX

+static int set_selinux_context(const char *name, const char *filename) {

+       security_context_t user_context=NULL;

+       security_context_t  file_context=NULL;

+       struct av_decision avd;

+       int retval=-1;

+       char *seuser=NULL;

+       char *level=NULL;

+

+       if (getseuserbyname(name, &seuser, &level) == 0) {

+               retval=get_default_context_with_level(seuser, level, NULL, &user_context);

+               free(seuser);

+               free(level);

+               if (retval) {

+                       if (security_getenforce()==1) {

+                               perr("execle: couldn't get security context for user %s\n", name);

+                       } else {

+                               syslog(LOG_ERR, "execle: couldn't get security context for user %s\n", name);

+                               return -1;

+                       }

+               }

+       }

+

+       /*

+       * Since crontab files are not directly executed,

+       * crond must ensure that the crontab file has

+       * a context that is appropriate for the context of

+       * the user cron job.  It performs an entrypoint

+       * permission check for this purpose.

+       */

+       if (fgetfilecon(STDIN_FILENO, &file_context) < 0)

+               perr("fgetfilecon FAILED %s", filename);

+

+       retval = security_compute_av(user_context,

+                                    file_context,

+                                    SECCLASS_FILE,

+                                    FILE__ENTRYPOINT,

+                                    &avd);

+       freecon(file_context);

+       if (retval || ((FILE__ENTRYPOINT & avd.allowed) != FILE__ENTRYPOINT)) {

+               if (security_getenforce()==1) {

+                       perr("Not allowed to set exec context to %s for user  %s\n", user_context,name);

+               } else {

+                       syslog(LOG_ERR, "Not allowed to set exec context to %s for user  %s\n", user_context,name);

+                       retval = -1;

+                       goto err;

+               }

+       }

+       if (setexeccon(user_context) < 0) {

+               if (security_getenforce()==1) {

+                       perr("Could not set exec context to %s for user  %s\n", user_context,name);

+                       retval = -1;

+               } else {

+                       syslog(LOG_ERR, "Could not set exec context to %s for user  %s\n", user_context,name);

+               }

+       }

+  err:

+       freecon(user_context);

+       return 0;

+}

+#endif

+

 static void

 run_file(const char *filename, uid_t uid, gid_t gid)

 {

@@ -431,9 +501,23 @@ run_file(const char *filename, uid_t uid

 	    chdir("/");

+#ifdef WITH_SELINUX

+            if (selinux_enabled > 0) {

+                if (set_selinux_context(pentry->pw_name, filename) < 0)

+                       perr("SELinux Failed to set context\n");

+           }

+#endif

+

 	    if (execle("/bin/sh", "sh", (char *) NULL, nenvp) != 0)

 		perr("Exec failed for /bin/sh");

+#ifdef WITH_SELINUX

+               if (selinux_enabled>0)

+                       if (setexeccon(NULL) < 0)

+                              if (security_getenforce()==1)

+                                       perr("Could not resset exec context for user %s\n", pentry->pw_name);

+#endif

+

 #ifdef  WITH_PAM

            if ( ( nenvp != &nul ) && (pam_envp != 0L)  && (*pam_envp != 0L))

            {

@@ -732,6 +816,10 @@ main(int argc, char *argv[])

     struct passwd *pwe;

     struct group *ge;

+#ifdef WITH_SELINUX

+    selinux_enabled=is_selinux_enabled();

+#endif

+

 /* We don't need root privileges all the time; running under uid and gid

  * daemon is fine.

  */

diff -up at-3.1.14/config.h.in.selinux at-3.1.14/config.h.in

--- at-3.1.14/config.h.in.selinux	2013-09-26 15:06:55.177049852 +0200

+++ at-3.1.14/config.h.in	2013-09-26 15:06:55.180049850 +0200

@@ -71,6 +71,9 @@

 /* Define if you are building with_pam */

 #undef WITH_PAM

+/* Define if you are building with_selinux  */

+#undef WITH_SELINUX

+

 /* Define to 1 if you have the `pstat_getdynamic' function. */

 #undef HAVE_PSTAT_GETDYNAMIC

diff -up at-3.1.14/configure.ac.selinux at-3.1.14/configure.ac

--- at-3.1.14/configure.ac.selinux	2013-09-26 15:06:55.178049851 +0200

+++ at-3.1.14/configure.ac	2013-09-26 15:06:55.180049850 +0200

@@ -246,6 +246,14 @@ AC_DEFINE(WITH_PAM),

 AC_CHECK_LIB(pam, pam_start, PAMLIB='-lpam -lpam_misc')

 AC_SUBST(PAMLIB)

+AC_ARG_WITH(selinux,

+[ --with-selinux       Define to run with selinux],

+AC_DEFINE(WITH_SELINUX),

+)

+AC_CHECK_LIB(selinux, is_selinux_enabled, SELINUXLIB=-lselinux)

+AC_SUBST(SELINUXLIB)

+AC_SUBST(WITH_SELINUX)

+

 AC_MSG_CHECKING(groupname to run under)

 AC_ARG_WITH(daemon_groupname,

 [ --with-daemon_groupname=DAEMON_GROUPNAME	Groupname to run under (default daemon) ],

diff -up at-3.1.14/Makefile.in.selinux at-3.1.14/Makefile.in

--- at-3.1.14/Makefile.in.selinux	2013-09-26 15:06:55.175049853 +0200

+++ at-3.1.14/Makefile.in	2013-09-26 15:06:55.180049850 +0200

@@ -40,6 +40,7 @@ LIBS		= @LIBS@

 LIBOBJS		= @LIBOBJS@

 INSTALL		= @INSTALL@

 PAMLIB          = @PAMLIB@

+SELINUXLIB      = @SELINUXLIB@

 CLONES		= atq atrm

 ATOBJECTS	= at.o panic.o perm.o posixtm.o y.tab.o lex.yy.o