4:23 a.m.
This API intended for use by virt-rescue only gets the file descriptor
of the console socket.
---
generator/actions_core.ml | 11 +++++++
generator/actions_properties_deprecated.ml | 4 +--
lib/Makefile.am | 1 +
lib/conn-socket.c | 16 +++++++++-
lib/guestfs-internal.h | 3 ++
lib/rescue.c | 47 ++++++++++++++++++++++++++++++
6 files changed, 79 insertions(+), 3 deletions(-)
create mode 100644 lib/rescue.c
diff --git a/generator/actions_core.ml b/generator/actions_core.ml
index ed89f74..765a7fe 100644
--- a/generator/actions_core.ml
+++ b/generator/actions_core.ml
@@ -1722,6 +1722,17 @@ call it returns a simple true/false boolean result, instead
of throwing an exception if a feature is not found. For
other documentation see C<guestfs_available>." };
+ { defaults with
+ name = "internal_get_console_socket"; added = (1, 37, 1);
+ style = RInt "fd", [], [];
+ visibility = VInternal;
+ test_excuse = "writing to the socket may block";
+ shortdesc = "get the appliance console socket";
+ longdesc = "\
+This call is used by L<virt-rescue(1)> to write directly to
+appliance console (for passing through keystrokes). It should
+not normally be used by other libguestfs users." };
+
]
let daemon_functions = [
diff --git a/generator/actions_properties_deprecated.ml
b/generator/actions_properties_deprecated.ml
index 5327782..f36509e 100644
--- a/generator/actions_properties_deprecated.ml
+++ b/generator/actions_properties_deprecated.ml
@@ -128,7 +128,7 @@ See C<guestfs_set_backend> and
L<guestfs(3)/BACKEND>." };
{ defaults with
name = "set_direct"; added = (1, 0, 72);
style = RErr, [Bool "direct"], [];
- deprecated_by = Deprecated_no_replacement;
+ deprecated_by = Replaced_by "internal_get_console_socket";
fish_alias = ["direct"]; config_only = true;
blocking = false;
shortdesc = "enable or disable direct appliance mode";
@@ -149,7 +149,7 @@ The default is disabled." };
{ defaults with
name = "get_direct"; added = (1, 0, 72);
style = RBool "direct", [], [];
- deprecated_by = Deprecated_no_replacement;
+ deprecated_by = Replaced_by "internal_get_console_socket";
blocking = false;
shortdesc = "get direct appliance mode flag";
longdesc = "\
diff --git a/lib/Makefile.am b/lib/Makefile.am
index e1ab1bf..774274b 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -116,6 +116,7 @@ libguestfs_la_SOURCES = \
private-data.c \
proto.c \
qemu.c \
+ rescue.c \
stringsbuf.c \
structs-compare.c \
structs-copy.c \
diff --git a/lib/conn-socket.c b/lib/conn-socket.c
index 4e1f781..43f5e67 100644
--- a/lib/conn-socket.c
+++ b/lib/conn-socket.c
@@ -1,5 +1,5 @@
/* libguestfs
- * Copyright (C) 2013 Red Hat Inc.
+ * Copyright (C) 2013-2017 Red Hat Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@@ -396,6 +396,19 @@ handle_log_message (guestfs_h *g,
return 1;
}
+static int
+get_console_sock (guestfs_h *g, struct connection *connv)
+{
+ struct connection_socket *conn = (struct connection_socket *) connv;
+
+ if (conn->console_sock == -1) {
+ error (g, _("console socket not connected"));
+ return -1;
+ }
+
+ return conn->console_sock;
+}
+
static void
free_conn_socket (guestfs_h *g, struct connection *connv)
{
@@ -417,6 +430,7 @@ static struct connection_ops ops = {
.read_data = read_data,
.write_data = write_data,
.can_read_data = can_read_data,
+ .get_console_sock = get_console_sock,
};
/**
diff --git a/lib/guestfs-internal.h b/lib/guestfs-internal.h
index 7126b88..5e9d97c 100644
--- a/lib/guestfs-internal.h
+++ b/lib/guestfs-internal.h
@@ -373,6 +373,9 @@ struct connection_ops {
* Returns: 1 = yes, 0 = no, -1 = error
*/
int (*can_read_data) (guestfs_h *g, struct connection *);
+
+ /* Get the console socket (to support virt-rescue). */
+ int (*get_console_sock) (guestfs_h *g, struct connection *);
};
/**
diff --git a/lib/rescue.c b/lib/rescue.c
new file mode 100644
index 0000000..ae7811a
--- /dev/null
+++ b/lib/rescue.c
@@ -0,0 +1,47 @@
+/* libguestfs
+ * Copyright (C) 2017 Red Hat Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * Support for virt-rescue(1).
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <libintl.h>
+
+#include "guestfs.h"
+#include "guestfs-internal.h"
+#include "guestfs-internal-actions.h"
+
+int
+guestfs_impl_internal_get_console_socket (guestfs_h *g)
+{
+ if (!g->conn) {
+ error (g, _("no console socket, the handle must be launched"));
+ return -1;
+ }
+
+ if (!g->conn->ops->get_console_sock)
+ NOT_SUPPORTED (g, -1,
+ _("connection class does not support getting the console socket"));
+
+ return g->conn->ops->get_console_sock (g, g->conn);
+}
--
2.9.3