- sftp: fix crash on unmount

This commit is contained in:
Tomas Bzatek 2010-02-15 15:12:38 +00:00
parent 3f4ce1d31a
commit 3c4d88b8be
2 changed files with 124 additions and 1 deletions

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@ -0,0 +1,114 @@
From f06989be68a60215b66376210bd367507c7b5c3c Mon Sep 17 00:00:00 2001
From: Tomas Bzatek <tbzatek@redhat.com>
Date: Mon, 15 Feb 2010 13:57:33 +0000
Subject: sftp: Cancel all pending reads in reply_stream on unmount
Close the active read_reply_async() channel waiting for input from the sftp process.
---
diff --git a/daemon/gvfsbackendsftp.c b/daemon/gvfsbackendsftp.c
index 6b618ea..659ed93 100644
--- a/daemon/gvfsbackendsftp.c
+++ b/daemon/gvfsbackendsftp.c
@@ -161,6 +161,8 @@ struct _GVfsBackendSftp
GInputStream *reply_stream;
GDataInputStream *error_stream;
+ GCancellable *reply_stream_cancellable;
+
guint32 current_id;
/* Output Queue */
@@ -254,6 +256,9 @@ g_vfs_backend_sftp_finalize (GObject *object)
if (backend->command_stream)
g_object_unref (backend->command_stream);
+ if (backend->reply_stream_cancellable)
+ g_object_unref (backend->reply_stream_cancellable);
+
if (backend->reply_stream)
g_object_unref (backend->reply_stream);
@@ -1216,6 +1221,13 @@ read_reply_async_got_len (GObject *source_object,
error = NULL;
res = g_input_stream_read_finish (G_INPUT_STREAM (source_object), result, &error);
+ /* Bail out if cancelled */
+ if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+ {
+ g_object_unref (backend);
+ return;
+ }
+
check_input_stream_read_result (backend, res, error);
backend->reply_size_read += res;
@@ -1224,7 +1236,8 @@ read_reply_async_got_len (GObject *source_object,
{
g_input_stream_read_async (backend->reply_stream,
&backend->reply_size + backend->reply_size_read, 4 - backend->reply_size_read,
- 0, NULL, read_reply_async_got_len, backend);
+ 0, backend->reply_stream_cancellable, read_reply_async_got_len,
+ backend);
return;
}
backend->reply_size = GUINT32_FROM_BE (backend->reply_size);
@@ -1242,7 +1255,9 @@ read_reply_async (GVfsBackendSftp *backend)
backend->reply_size_read = 0;
g_input_stream_read_async (backend->reply_stream,
&backend->reply_size, 4,
- 0, NULL, read_reply_async_got_len, backend);
+ 0, backend->reply_stream_cancellable,
+ read_reply_async_got_len,
+ backend);
}
static void send_command (GVfsBackendSftp *backend);
@@ -1595,6 +1610,7 @@ do_mount (GVfsBackend *backend,
}
op_backend->reply_stream = g_unix_input_stream_new (stdout_fd, TRUE);
+ op_backend->reply_stream_cancellable = g_cancellable_new ();
make_fd_nonblocking (stderr_fd);
is = g_unix_input_stream_new (stderr_fd, TRUE);
@@ -1641,7 +1657,7 @@ do_mount (GVfsBackend *backend,
return;
}
- read_reply_async (op_backend);
+ read_reply_async (g_object_ref (op_backend));
sftp_mount_spec = g_mount_spec_new ("sftp");
if (op_backend->user_specified_in_uri)
@@ -1738,6 +1754,21 @@ try_mount (GVfsBackend *backend,
return FALSE;
}
+static gboolean
+try_unmount (GVfsBackend *backend,
+ GVfsJobUnmount *job,
+ GMountUnmountFlags flags,
+ GMountSource *mount_source)
+{
+ GVfsBackendSftp *op_backend = G_VFS_BACKEND_SFTP (backend);
+
+ if (op_backend->reply_stream && op_backend->reply_stream_cancellable)
+ g_cancellable_cancel (op_backend->reply_stream_cancellable);
+ g_vfs_job_succeeded (G_VFS_JOB (job));
+
+ return TRUE;
+}
+
static int
io_error_code_for_sftp_error (guint32 code, int failure_error)
{
@@ -4664,6 +4695,7 @@ g_vfs_backend_sftp_class_init (GVfsBackendSftpClass *klass)
backend_class->mount = real_do_mount;
backend_class->try_mount = try_mount;
+ backend_class->try_unmount = try_unmount;
backend_class->try_open_icon_for_read = try_open_icon_for_read;
backend_class->try_open_for_read = try_open_for_read;
backend_class->try_read = try_read;
--
cgit v0.8.3.1

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@ -1,7 +1,7 @@
Summary: Backends for the gio framework in GLib
Name: gvfs
Version: 1.5.3
Release: 1%{?dist}
Release: 2%{?dist}
License: LGPLv2+
Group: System Environment/Libraries
URL: http://www.gtk.org
@ -35,6 +35,11 @@ BuildRequires: libtool
# http://bugzilla.gnome.org/show_bug.cgi?id=567235
Patch0: gvfs-archive-integration.patch
# gvfsd-sftp crashes on unmount
# https://bugzilla.redhat.com/show_bug.cgi?id=557548
Patch1: gvfs-1.5.4-sftp-unmount.patch
# Recognize gphoto2 cameras which don't implement get storageinfo
# https://bugzilla.redhat.com/show_bug.cgi?id=552856
Patch15: gvfs-1.5.1-gphoto2-no-storageinfo-support.patch
@ -134,6 +139,7 @@ including phones and music players to applications using gvfs.
%prep
%setup -q
%patch0 -p1 -b .archive-integration
%patch1 -p1 -b .sftp-unmount
%patch15 -p1 -b .gphoto2-storageinfo
@ -315,6 +321,9 @@ killall -USR1 gvfsd >&/dev/null || :
%{_datadir}/gvfs/remote-volume-monitors/afc.monitor
%changelog
* Mon Feb 15 2010 Tomas Bzatek <tbzatek@redhat.com> - 1.5.3-2
- sftp: fix crash on unmount
* Tue Feb 9 2010 Tomas Bzatek <tbzatek@redhat.com> - 1.5.3-1
- Update to 1.5.3