gdm/gdm-2.17.7-reset-pam.patch

--- gdm-2.17.7/gui/greeter/greeter.c.reset-pam	2007-02-12 00:40:12.000000000 -0500
+++ gdm-2.17.7/gui/greeter/greeter.c	2007-02-23 22:54:28.000000000 -0500
@@ -171,7 +171,6 @@
     GtkWidget *dlg;
     char *tmp;
     char *session;
-    GreeterItemInfo *conversation_info;
     static GnomeCanvasItem *disabled_cover = NULL;
     gchar *language;
     gchar *selected_user = NULL;
@@ -380,17 +379,10 @@
 
 	first_prompt = TRUE;
 
-	conversation_info = greeter_lookup_id ("pam-conversation");
-	
-	if (conversation_info)
-	  {
-	    tmp = ve_locale_to_utf8 (args);
-	    g_object_set (G_OBJECT (conversation_info->item),
-			  "text", tmp,
-			  NULL);
-	    g_free (tmp);
-	  }
-
+        greeter_item_ulist_unset_selected_user ();
+        greeter_item_pam_prompt ("", PW_ENTRY_SIZE, TRUE);
+        greeter_item_pam_message ("");
+ 
 	printf ("%c\n", STX);
 	fflush (stdout);
 	greeter_ignore_buttons (FALSE);
--- gdm-2.17.7/daemon/slave.c.reset-pam	2007-02-23 22:54:28.000000000 -0500
+++ gdm-2.17.7/daemon/slave.c	2007-02-23 22:54:28.000000000 -0500
@@ -133,6 +133,12 @@
 static int greeter_fd_out = -1;
 static int greeter_fd_in = -1;
 
+/* a dup of the other side of greeter_fd_in so that
+ * the slave can talk to itself from its sig handler
+ * using the greeter ipc mechanism
+ */
+static int slave_fd_out = -1;
+
 #ifdef HAVE_TSOL
 static gboolean have_suntsol_extension = FALSE;
 #endif
@@ -626,7 +632,7 @@
 }
 
 static void
-whack_greeter_fds (void)
+whack_greeter_and_slave_fds (void)
 {
 	if (greeter_fd_out > 0)
 		VE_IGNORE_EINTR (close (greeter_fd_out));
@@ -634,6 +640,9 @@
 	if (greeter_fd_in > 0)
 		VE_IGNORE_EINTR (close (greeter_fd_in));
 	greeter_fd_in = -1;
+	if (slave_fd_out > 0)
+		VE_IGNORE_EINTR (close (slave_fd_out));
+	slave_fd_out = -1;
 }
 
 static void
@@ -1084,7 +1093,7 @@
 
 	d->greetpid = 0;
 
-	whack_greeter_fds ();
+	whack_greeter_and_slave_fds ();
 
 	gdm_slave_send_num (GDM_SOP_GREETPID, 0);
 
@@ -1887,7 +1896,7 @@
 
 		d->greetpid = 0;
 
-		whack_greeter_fds ();
+		whack_greeter_and_slave_fds ();
 
 		gdm_slave_send_num (GDM_SOP_GREETPID, 0);
 	}
@@ -2124,6 +2133,12 @@
 			break;
 		}
 
+		if (do_cancel) {
+			gdm_debug ("canceling...");
+			gdm_slave_greeter_ctl_no_ret (GDM_RESETOK, "");
+			continue;
+		}
+
 		if (login == NULL) {
 			char *failuresound = gdm_get_value_string (GDM_KEY_SOUND_ON_LOGIN_FAILURE_FILE);
 
@@ -2723,9 +2738,9 @@
 	
     default:
 	VE_IGNORE_EINTR (close (pipe1[0]));
-	VE_IGNORE_EINTR (close (pipe2[1]));
+	whack_greeter_and_slave_fds ();
 
-	whack_greeter_fds ();
+	slave_fd_out = pipe2[1];
 
 	greeter_fd_out = pipe1[1];
 	greeter_fd_in = pipe2[0];
@@ -4784,7 +4799,7 @@
 
 			greet = FALSE;
 			d->greetpid = 0;
-			whack_greeter_fds ();
+			whack_greeter_and_slave_fds ();
 			gdm_slave_send_num (GDM_SOP_GREETPID, 0);
 
 			do_restart_greeter = TRUE;
@@ -4796,7 +4811,7 @@
 			continue;
 		}
 
-		whack_greeter_fds ();
+		whack_greeter_and_slave_fds ();
 
 		/* if greet is TRUE, then the greeter died outside of our
 		 * control really, so clean up and die, something is wrong
@@ -4939,6 +4954,11 @@
 				gdm_wait_for_go = FALSE;
 			} else if (strcmp (&s[1], GDM_NOTIFY_TWIDDLE_POINTER) == 0) {
 				gdm_twiddle_pointer (d);
+			} else if (strcmp (&s[1], GDM_NOTIFY_RESET) == 0) {
+				if (!d->logged_in) {
+					gdm_fdprintf (slave_fd_out, "%c%c%c\n", 
+						      STX, BEL, GDM_INTERRUPT_CANCEL);
+				}
 			}
 		} else if (s[0] == GDM_SLAVE_NOTIFY_RESPONSE) {
 			gdm_got_ack = TRUE;
--- gdm-2.17.7/daemon/gdm.h.reset-pam	2007-02-12 00:40:19.000000000 -0500
+++ gdm-2.17.7/daemon/gdm.h	2007-02-23 22:54:28.000000000 -0500
@@ -749,6 +749,9 @@
 #define GDM_SOP_SHOW_QUESTION_DIALOG "SHOW_QUESTION_DIALOG"  /* show the question dialog from daemon */
 #define GDM_SOP_SHOW_ASKBUTTONS_DIALOG "SHOW_ASKBUTTON_DIALOG"  /* show the askbutton dialog from daemon */
 
+/* Reset any in progress authentication conversations */
+#define GDM_SOP_CANCEL_LOGIN_REQUESTS "CANCEL_LOGIN_REQUESTS" /* no arguments */
+
 /* Notification protocol */
 /* keys */
 #define GDM_NOTIFY_ALLOW_REMOTE_ROOT "AllowRemoteRoot" /* <true/false as int> */
@@ -776,6 +779,7 @@
 #define GDM_NOTIFY_SOFT_RESTART_SERVERS "SOFT_RESTART_SERVERS"
 #define GDM_NOTIFY_GO "GO"
 #define GDM_NOTIFY_TWIDDLE_POINTER "TWIDDLE_POINTER"
+#define GDM_NOTIFY_RESET "RESET"
 
 /* Ack for a slave message */
 /* Note that an extra response can follow an 'ack' */
--- gdm-2.17.7/daemon/gdm.c.reset-pam	2007-02-12 00:40:19.000000000 -0500
+++ gdm-2.17.7/daemon/gdm.c	2007-02-23 22:55:35.000000000 -0500
@@ -2557,6 +2557,14 @@
 				     TRUE /* handled */,
 				     FALSE /* chooser */,
 				     NULL, 0, NULL, NULL, NULL);
+       } else if (strcmp (msg, GDM_SOP_CANCEL_LOGIN_REQUESTS) == 0) {
+               GSList *li;
+               for (li = displays; li != NULL; li = li->next) {
+                       GdmDisplay *d = li->data;
+                       if (!d->logged_in) {
+                               send_slave_command (d, GDM_NOTIFY_RESET);
+                       }
+               }
        } else if (strncmp (msg, "opcode="GDM_SOP_SHOW_ERROR_DIALOG,
 			   strlen ("opcode="GDM_SOP_SHOW_ERROR_DIALOG)) == 0) {
 		GdmDisplay *d;