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Group :: Sistema/Servidores
RPM: cups

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Patch: ALT-SE-ippcalls.patch
Download

diff --git a/cups/scheduler/ipp.c b/cups/scheduler/ipp.c
index 8d2c79baa..cee68cf8b 100644
--- a/cups/scheduler/ipp.c
+++ b/cups/scheduler/ipp.c
@@ -6209,6 +6209,11 @@ get_document(cupsd_client_t  *con,	/* I - Client connection */
   int		port;			/* Port portion of URI */
   char		filename[1024],		/* Filename for document */
 		format[1024];		/* Format for document */
+  security_id_t        clisid;          /* SELinux SID for the client */
+  security_id_t        jsid;            /* SELinux SID for the job */
+  struct avc_entry_ref avcref;         /* Pointer to the access vector cache */
+  security_class_t	tclass;		/* Object class for the SELinux check */
+  access_vector_t	avr;		/* Access method being requested */
 
 
   cupsdLogMessage(CUPSD_LOG_DEBUG2, "get_document(%p[%d], %s)", con,
@@ -6283,6 +6288,52 @@ get_document(cupsd_client_t  *con,	/* I - Client connection */
     return;
   }
 
+    if (is_selinux_mls_enabled () )
+    {
+	    static int avc_initialized = 0;
+	    if (! avc_initialized++)
+	    {
+		    if (avc_init("cupsd", NULL, NULL, NULL, NULL) < 0)
+		    {
+			    cupsdLogJob(job, CUPSD_LOG_ERROR, "check_context: unable avc_init");
+			    return ;
+		    }
+
+	    }
+	    cupsdLogMessage(CUPSD_LOG_DEBUG2, "client context: %s", con->scon);
+	    avc_context_to_sid(con->scon, &clisid);
+	    avc_entry_ref_init(&avcref);
+	    avc_context_to_sid(job->scon, &jsid);
+
+	    tclass = string_to_security_class("file");
+	    if (tclass <= 0)
+	    {
+		cupsdLogMessage(CUPSD_LOG_ERROR,
+		    "GetDocument: SELinux failed to translate security class \"file\"");
+		send_ipp_status(con, IPP_INTERNAL_ERROR,
+		    _("SELinux failed to translate security class \"file\" while processing job #%d."),
+		    jobid);
+		return;
+	    }
+
+	    avr = string_to_av_perm(tclass, "read");
+	    if (avr <= 0)
+	    {
+		cupsdLogMessage(CUPSD_LOG_ERROR,
+		    "GetDocument: SELinux failed to translate av perm \"read\" of security class \"file\"");
+		send_ipp_status(con, IPP_INTERNAL_ERROR,
+		    _("SELinux failed to translate av perm \"read\" of security class \"file\" while processing job #%d."),
+		    jobid);
+		return;
+	    }
+
+	    if( avc_has_perm(clisid, jsid, tclass, avr, &avcref, NULL) )
+	    {
+		    cupsdLogMessage(CUPSD_LOG_DEBUG2, "GetDocument: Refusing Job %d due to SE level", job->id);
+		    send_ipp_status(con, IPP_NOT_FOUND, _("Job #%d does not exist."), jobid);
+		    return;
+	    }
+    }
  /*
   * Get the document number...
   */
@@ -6356,6 +6407,11 @@ get_job_attrs(cupsd_client_t  *con,	/* I - Client connection */
   int		port;			/* Port portion of URI */
   cups_array_t	*ra,			/* Requested attributes array */
 		*exclude;		/* Private attributes array */
+  security_id_t        clisid;          /* SELinux SID for the client */
+  security_id_t        jsid;            /* SELinux SID for the job */
+  struct avc_entry_ref avcref;         /* Pointer to the access vector cache */
+  security_class_t	tclass;		/* Object class for the SELinux check */
+  access_vector_t	avr;		/* Access method being requested */
 
 
   cupsdLogMessage(CUPSD_LOG_DEBUG2, "get_job_attrs(%p[%d], %s)", con,
@@ -6419,6 +6475,52 @@ get_job_attrs(cupsd_client_t  *con,	/* I - Client connection */
     return;
   }
 
+    if (is_selinux_mls_enabled () )
+    {
+	    static int avc_initialized = 0;
+	    if (! avc_initialized++)
+	    {
+		    if (avc_init("cupsd", NULL, NULL, NULL, NULL) < 0)
+		    {
+			    cupsdLogJob(job, CUPSD_LOG_ERROR, "check_context: unable avc_init");
+			    return ;
+		    }
+
+	    }
+	    cupsdLogMessage(CUPSD_LOG_DEBUG2, "client context: %s", con->scon);
+	    avc_context_to_sid(con->scon, &clisid);
+	    avc_entry_ref_init(&avcref);
+	    avc_context_to_sid(job->scon, &jsid);
+
+	    tclass = string_to_security_class("file");
+	    if (tclass <= 0)
+	    {
+		cupsdLogMessage(CUPSD_LOG_ERROR,
+		    "GetJobAttrs: SELinux failed to translate security class \"file\"");
+		send_ipp_status(con, IPP_INTERNAL_ERROR,
+		    _("SELinux failed to translate security class \"file\" while processing job #%d."),
+		    jobid);
+		return;
+	    }
+
+	    avr = string_to_av_perm(tclass, "read");
+	    if (avr <= 0)
+	    {
+		cupsdLogMessage(CUPSD_LOG_ERROR,
+		    "GetJobAttrs: SELinux failed to translate av perm \"read\" of security class \"file\"");
+		send_ipp_status(con, IPP_INTERNAL_ERROR,
+		    _("SELinux failed to translate av perm \"read\" of security class \"file\" while processing job #%d."),
+		    jobid);
+		return;
+	    }
+
+	    if( avc_has_perm(clisid, jsid, tclass, avr, &avcref, NULL) )
+	    {
+		    cupsdLogMessage(CUPSD_LOG_DEBUG2, "GetJobAttrs: Refusing Job %d due to SE level", job->id);
+		    send_ipp_status(con, IPP_NOT_FOUND, _("Job #%d does not exist."), jobid);
+		    return;
+	    }
+    }
  /*
   * Check policy...
   */
@@ -6487,6 +6589,11 @@ get_jobs(cupsd_client_t  *con,		/* I - Client connection */
   cups_array_t	*ra,			/* Requested attributes array */
 		*exclude;		/* Private attributes array */
   cupsd_policy_t *policy;		/* Current policy */
+  security_id_t        clisid;          /* SELinux SID for the client */
+  security_id_t        jsid;            /* SELinux SID for the job */
+  struct avc_entry_ref avcref;         /* Pointer to the access vector cache */
+  security_class_t	tclass;		/* Object class for the SELinux check */
+  access_vector_t	avr;		/* Access method being requested */
 
 
   cupsdLogMessage(CUPSD_LOG_DEBUG2, "get_jobs(%p[%d], %s)", con, con->number,
@@ -6736,6 +6843,39 @@ get_jobs(cupsd_client_t  *con,		/* I - Client connection */
     cupsdLogClient(con, CUPSD_LOG_INFO, "Limiting Get-Jobs response to %d jobs.", limit);
   }
 
+    if (is_selinux_mls_enabled () )
+    {
+	    static int avc_initialized = 0;
+	    if (! avc_initialized++)
+	    {
+		    if (avc_init("cupsd", NULL, NULL, NULL, NULL) < 0)
+		    {
+			    cupsdLogJob(job, CUPSD_LOG_ERROR, "check_context: unable avc_init");
+			    return ;
+		    }
+
+	    }
+	    cupsdLogMessage(CUPSD_LOG_DEBUG2, "client context: %s", con->scon);
+	    avc_context_to_sid(con->scon, &clisid);
+	    avc_entry_ref_init(&avcref);
+
+	    tclass = string_to_security_class("file");
+	    if (tclass <= 0)
+	    {
+		cupsdLogJob(job, CUPSD_LOG_ERROR,
+		    "SELinux failed to translate security class \"file\"");
+		return;
+	    }
+
+	    avr = string_to_av_perm(tclass, "read");
+	    if (avr <= 0)
+	    {
+		cupsdLogJob(job, CUPSD_LOG_ERROR,
+		    "SELinux failed to translate av perm \"read\" of security class \"file\"");
+		return;
+	    }
+    }
+
  /*
   * OK, build a list of jobs for this printer...
   */
@@ -6771,6 +6911,15 @@ get_jobs(cupsd_client_t  *con,		/* I - Client connection */
 	  continue;
 	}
       }
+      if (is_selinux_mls_enabled () )
+      {
+	 avc_context_to_sid(job->scon, &jsid);
+	 if( avc_has_perm(clisid, jsid, tclass, avr, &avcref, NULL) )
+	 {
+	    cupsdLogMessage(CUPSD_LOG_DEBUG2, "GetJobs: Skiping Job %d due to SE level", job->id);
+	    continue;
+	 }
+      }
 
       if (i > 0)
 	ippAddSeparator(con->response);
@@ -6833,6 +6982,15 @@ get_jobs(cupsd_client_t  *con,		/* I - Client connection */
 	}
       }
 
+      if (is_selinux_mls_enabled () )
+      {
+	 avc_context_to_sid(job->scon, &jsid);
+	 if( avc_has_perm(clisid, jsid, tclass, avr, &avcref, NULL) )
+	 {
+	    cupsdLogMessage(CUPSD_LOG_DEBUG2, "GetJobs: Skiping Job %d due to SE level", job->id);
+	    continue;
+	 }
+      }
       if (username[0] && _cups_strcasecmp(username, job->username))
 	continue;
 
@@ -9006,6 +9164,11 @@ release_job(cupsd_client_t  *con,	/* I - Client connection */
 		resource[HTTP_MAX_URI];	/* Resource portion of URI */
   int		port;			/* Port portion of URI */
   cupsd_job_t	*job;			/* Job information */
+  security_id_t        clisid;          /* SELinux SID for the client */
+  security_id_t        jsid;            /* SELinux SID for the job */
+  struct avc_entry_ref avcref;         /* Pointer to the access vector cache */
+  security_class_t	tclass;		/* Object class for the SELinux check */
+  access_vector_t	avr;		/* Access method being requested */
 
 
   cupsdLogMessage(CUPSD_LOG_DEBUG2, "release_job(%p[%d], %s)", con,
@@ -9069,6 +9232,52 @@ release_job(cupsd_client_t  *con,	/* I - Client connection */
     return;
   }
 
+    if (is_selinux_mls_enabled () )
+    {
+	    static int avc_initialized = 0;
+	    if (! avc_initialized++)
+	    {
+		    if (avc_init("cupsd", NULL, NULL, NULL, NULL) < 0)
+		    {
+			    cupsdLogJob(job, CUPSD_LOG_ERROR, "check_context: unable avc_init");
+			    return ;
+		    }
+
+	    }
+	    cupsdLogMessage(CUPSD_LOG_DEBUG2, "client context: %s", con->scon);
+	    avc_context_to_sid(con->scon, &clisid);
+	    avc_entry_ref_init(&avcref);
+	    avc_context_to_sid(job->scon, &jsid);
+
+	    tclass = string_to_security_class("file");
+	    if (tclass <= 0)
+	    {
+		cupsdLogMessage(CUPSD_LOG_ERROR,
+		    "ReleaseJob: SELinux failed to translate security class \"file\"");
+		send_ipp_status(con, IPP_INTERNAL_ERROR,
+		    _("SELinux failed to translate security class \"file\" while processing job #%d."),
+		    jobid);
+		return;
+	    }
+
+	    avr = string_to_av_perm(tclass, "write");
+	    if (avr <= 0)
+	    {
+		cupsdLogMessage(CUPSD_LOG_ERROR,
+		    "ReleaseJob: SELinux failed to translate av perm \"write\" of security class \"file\"");
+		send_ipp_status(con, IPP_INTERNAL_ERROR,
+		    _("SELinux failed to translate av perm \"write\" of security class \"file\" while processing job #%d."),
+		    jobid);
+		return;
+	    }
+
+	    if( avc_has_perm(clisid, jsid, tclass, avr, &avcref, NULL) )
+	    {
+		    cupsdLogMessage(CUPSD_LOG_DEBUG2, "ReleaseJob: Refusing Job %d due to SE level", job->id);
+		    send_ipp_status(con, IPP_NOT_FOUND, _("Job #%d does not exist."), jobid);
+		    return;
+	    }
+    }
  /*
   * See if job is "held"...
   */
@@ -10185,7 +10394,11 @@ set_job_attrs(cupsd_client_t  *con,	/* I - Client connection */
   int			port;		/* Port portion of URI */
   int			event;		/* Events? */
   int			check_jobs;	/* Check jobs? */
-
+  security_id_t        clisid;          /* SELinux SID for the client */
+  security_id_t        jsid;            /* SELinux SID for the job */
+  struct avc_entry_ref avcref;         /* Pointer to the access vector cache */
+  security_class_t	tclass;		/* Object class for the SELinux check */
+  access_vector_t	avr;		/* Access method being requested */
 
   cupsdLogMessage(CUPSD_LOG_DEBUG2, "set_job_attrs(%p[%d], %s)", con,
                   con->number, uri->values[0].string.text);
@@ -10254,6 +10467,52 @@ set_job_attrs(cupsd_client_t  *con,	/* I - Client connection */
     return;
   }
 
+    if (is_selinux_mls_enabled () )
+    {
+	    static int avc_initialized = 0;
+	    if (! avc_initialized++)
+	    {
+		    if (avc_init("cupsd", NULL, NULL, NULL, NULL) < 0)
+		    {
+			    cupsdLogJob(job, CUPSD_LOG_ERROR, "check_context: unable avc_init");
+			    return ;
+		    }
+
+	    }
+	    cupsdLogMessage(CUPSD_LOG_DEBUG2, "client context: %s", con->scon);
+	    avc_context_to_sid(con->scon, &clisid);
+	    avc_entry_ref_init(&avcref);
+	    avc_context_to_sid(job->scon, &jsid);
+
+	    tclass = string_to_security_class("file");
+	    if (tclass <= 0)
+	    {
+		cupsdLogMessage(CUPSD_LOG_ERROR,
+		    "SetJobAttrs: SELinux failed to translate security class \"file\"");
+		send_ipp_status(con, IPP_INTERNAL_ERROR,
+		    _("SELinux failed to translate security class \"file\" while processing job #%d."),
+		    jobid);
+		return;
+	    }
+
+	    avr = string_to_av_perm(tclass, "write");
+	    if (avr <= 0)
+	    {
+		cupsdLogMessage(CUPSD_LOG_ERROR,
+		    "SetJobAttrs: SELinux failed to translate av perm \"write\" of security class \"file\"");
+		send_ipp_status(con, IPP_INTERNAL_ERROR,
+		    _("SELinux failed to translate av perm \"write\" of security class \"file\" while processing job #%d."),
+		    jobid);
+		return;
+	    }
+
+	    if( avc_has_perm(clisid, jsid, tclass, avr, &avcref, NULL) )
+	    {
+		    cupsdLogMessage(CUPSD_LOG_DEBUG2, "SetJobAttrs: Refusing Job %d due to SE level", job->id);
+		    send_ipp_status(con, IPP_NOT_FOUND, _("Job #%d does not exist."), jobid);
+		    return;
+	    }
+    }
  /*
   * See if the job has been completed...
   */
 
projeto & código: Vladimir Lettiev aka crux © 2004-2005, Andrew Avramenko aka liks © 2007-2008
mantenedor atual: Michael Shigorin
mantenedor da tradução: Fernando Martini aka fmartini © 2009