[network-manager-openconnect/NM_0_8] Implement proper cancellation now that libopenconnect supports it (cherry picked from commit e4dc523



commit 44a607ec08159b1c7ce0a3cbce4c3fdbf96f9d6c
Author: David Woodhouse <David Woodhouse intel com>
Date:   Sat May 12 20:36:51 2012 -0700

    Implement proper cancellation now that libopenconnect supports it
    (cherry picked from commit e4dc523828691207f97da3c767d9791500aff3bf)
    
    Conflicts:
    	auth-dialog/main.c

 auth-dialog/main.c |   19 ++++++++++++++++++-
 1 files changed, 18 insertions(+), 1 deletions(-)
---
diff --git a/auth-dialog/main.c b/auth-dialog/main.c
index 249dfe2..dd1a61d 100644
--- a/auth-dialog/main.c
+++ b/auth-dialog/main.c
@@ -1,7 +1,7 @@
 /*
  * OpenConnect (SSL + DTLS) VPN client
  *
- * Copyright  2008-2010 Intel Corporation.
+ * Copyright  2008-2012 Intel Corporation.
  *
  * Authors: Jussi Kukkonen <jku linux intel com>
  *          David Woodhouse <dwmw2 infradead org>
@@ -40,6 +40,7 @@
 
 #include <gtk/gtk.h>
 #include <glib/gi18n.h>
+#include <glib-unix.h>
 
 #include "auth-dlg-settings.h"
 
@@ -93,6 +94,7 @@ typedef struct auth_ui_data {
 	int retval;
 	int cookie_retval;
 
+	int cancel_pipes[2];
 	gboolean cancelled; /* fully cancel the whole challenge-response series */
 	gboolean getting_cookie;
 
@@ -1204,9 +1206,13 @@ static gboolean cookie_obtained(auth_ui_data *ui_data)
 static gpointer obtain_cookie (auth_ui_data *ui_data)
 {
 	int ret;
+	char cancelbuf;
 
 	ret = openconnect_obtain_cookie(ui_data->vpninfo);
 
+	/* Suck out the poison */
+	while (read(ui_data->cancel_pipes[0], &cancelbuf, 1) == 1)
+		;
 	ui_data->cookie_retval = ret;
 	g_idle_add ((GSourceFunc)cookie_obtained, ui_data);
 
@@ -1229,6 +1235,7 @@ static void connect_host(auth_ui_data *ui_data)
 
 	ssl_box_clear(ui_data);
 	gtk_widget_show(ui_data->getting_form_label);
+	gtk_widget_set_sensitive (ui_data->cancel_button, TRUE);
 
 	/* reset ssl context.
 	 * TODO: this is probably not the way to go... */
@@ -1277,6 +1284,8 @@ static void dialog_response (GtkDialog *dialog, int response, auth_ui_data *ui_d
 {
 	switch (response) {
 	case AUTH_DIALOG_RESPONSE_CANCEL:
+		write(ui_data->cancel_pipes[1], "x", 1);
+		/* Fall through... */
 	case AUTH_DIALOG_RESPONSE_LOGIN:
 		ssl_box_clear(ui_data);
 		if (ui_data->getting_cookie)
@@ -1439,11 +1448,19 @@ static auth_ui_data *init_ui_data (char *vpn_name)
 	ui_data->form_shown_changed = g_cond_new();
 	ui_data->cert_response_changed = g_cond_new();
 	ui_data->vpn_name = vpn_name;
+	pipe(ui_data->cancel_pipes);
+	g_unix_set_fd_nonblocking(ui_data->cancel_pipes[0], TRUE, NULL);
+	g_unix_set_fd_nonblocking(ui_data->cancel_pipes[1], TRUE, NULL);
 
 	ui_data->vpninfo = (void *)openconnect_vpninfo_new("OpenConnect VPN Agent (NetworkManager)",
 						   validate_peer_cert, write_new_config,
 						   nm_process_auth_form, write_progress);
 
+#if OPENCONNECT_API_VERSION_MAJOR > 1 || (OPENCONNECT_API_VERSION_MAJOR == 1 && OPENCONNECT_API_VERSION_MINOR >= 4)
+
+	openconnect_set_cancel_fd (ui_data->vpninfo, ui_data->cancel_pipes[0]);
+#endif  
+
 #if 0
 	ui_data->vpninfo->proxy_factory = px_proxy_factory_new();
 #endif



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