libguestfs/0002-RHEL-Remove-9p-APIs-from-RHEL-RHBZ-921710.patch

From c8770be96ddbebd7f1f726d97aa566fb1558ce2d Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Thu, 18 Jul 2013 18:31:53 +0100
Subject: [PATCH 2/5] RHEL: Remove 9p APIs from RHEL (RHBZ#921710).

---
 daemon/9p.c               | 182 --------------------------------------
 daemon/Makefile.am        |   1 -
 docs/C_SOURCE_FILES       |   1 -
 generator/actions_core.ml |  21 -----
 generator/proc_nr.ml      |   2 -
 gobject/Makefile.inc      |   2 -
 po/POTFILES               |   2 -
 tests/Makefile.am         |   1 -
 8 files changed, 212 deletions(-)
 delete mode 100644 daemon/9p.c

diff --git a/daemon/9p.c b/daemon/9p.c
deleted file mode 100644
index 743a96abd..000000000
--- a/daemon/9p.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/* libguestfs - the guestfsd daemon
- * Copyright (C) 2011 Red Hat Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <config.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <limits.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <dirent.h>
-#include <fcntl.h>
-
-#include "ignore-value.h"
-
-#include "daemon.h"
-#include "actions.h"
-
-#define BUS_PATH "/sys/bus/virtio/drivers/9pnet_virtio"
-
-static void
-modprobe_9pnet_virtio (void)
-{
-  /* Required with Linux 5.6 and maybe earlier kernels.  For unclear
-   * reasons the module is not an automatic dependency of the 9p
-   * module so doesn't get loaded automatically.
-   */
-  ignore_value (command (NULL, NULL, "modprobe", "9pnet_virtio", NULL));
-}
-
-/* https://bugzilla.redhat.com/show_bug.cgi?id=714981#c1 */
-char **
-do_list_9p (void)
-{
-  CLEANUP_FREE_STRINGSBUF DECLARE_STRINGSBUF (r);
-  DIR *dir;
-
-  modprobe_9pnet_virtio ();
-
-  dir = opendir (BUS_PATH);
-  if (!dir) {
-    perror ("opendir: " BUS_PATH);
-    if (errno != ENOENT) {
-      reply_with_perror ("opendir: " BUS_PATH);
-      return NULL;
-    }
-
-    /* If this directory doesn't exist, it probably means that
-     * the virtio driver isn't loaded.  Don't return an error
-     * in this case, but return an empty list.
-     */
-    if (end_stringsbuf (&r) == -1)
-      return NULL;
-
-    return take_stringsbuf (&r);
-  }
-
-  while (1) {
-    struct dirent *d;
-
-    errno = 0;
-    d = readdir (dir);
-    if (d == NULL) break;
-
-    if (STRPREFIX (d->d_name, "virtio")) {
-      CLEANUP_FREE char *mount_tag_path = NULL;
-      if (asprintf (&mount_tag_path, BUS_PATH "/%s/mount_tag",
-                    d->d_name) == -1) {
-        reply_with_perror ("asprintf");
-        closedir (dir);
-        return NULL;
-      }
-
-      /* A bit unclear, but it looks like the virtio transport allows
-       * the mount tag length to be unlimited (or up to 65536 bytes).
-       * See: linux/include/linux/virtio_9p.h
-       */
-      CLEANUP_FREE char *mount_tag = read_whole_file (mount_tag_path, NULL);
-      if (mount_tag == 0)
-        continue;
-
-      if (add_string (&r, mount_tag) == -1) {
-        closedir (dir);
-        return NULL;
-      }
-    }
-  }
-
-  /* Check readdir didn't fail */
-  if (errno != 0) {
-    reply_with_perror ("readdir: /sys/block");
-    closedir (dir);
-    return NULL;
-  }
-
-  /* Close the directory handle */
-  if (closedir (dir) == -1) {
-    reply_with_perror ("closedir: /sys/block");
-    return NULL;
-  }
-
-  /* Sort the tags. */
-  if (r.size > 0)
-    sort_strings (r.argv, r.size);
-
-  /* NULL terminate the list */
-  if (end_stringsbuf (&r) == -1)
-    return NULL;
-
-  return take_stringsbuf (&r);
-}
-
-/* Takes optional arguments, consult optargs_bitmask. */
-int
-do_mount_9p (const char *mount_tag, const char *mountpoint, const char *options)
-{
-  CLEANUP_FREE char *mp = NULL, *opts = NULL, *err = NULL;
-  struct stat statbuf;
-  int r;
-
-  ABS_PATH (mountpoint, 0, return -1);
-
-  mp = sysroot_path (mountpoint);
-  if (!mp) {
-    reply_with_perror ("malloc");
-    return -1;
-  }
-
-  /* Check the mountpoint exists and is a directory. */
-  if (stat (mp, &statbuf) == -1) {
-    reply_with_perror ("%s", mountpoint);
-    return -1;
-  }
-  if (!S_ISDIR (statbuf.st_mode)) {
-    reply_with_perror ("%s: mount point is not a directory", mountpoint);
-    return -1;
-  }
-
-  /* Add trans=virtio to the options. */
-  if ((optargs_bitmask & GUESTFS_MOUNT_9P_OPTIONS_BITMASK) &&
-      STRNEQ (options, "")) {
-    if (asprintf (&opts, "trans=virtio,%s", options) == -1) {
-      reply_with_perror ("asprintf");
-      return -1;
-    }
-  }
-  else {
-    opts = strdup ("trans=virtio");
-    if (opts == NULL) {
-      reply_with_perror ("strdup");
-      return -1;
-    }
-  }
-
-  modprobe_9pnet_virtio ();
-  r = command (NULL, &err,
-               "mount", "-o", opts, "-t", "9p", mount_tag, mp, NULL);
-  if (r == -1) {
-    reply_with_error ("%s on %s: %s", mount_tag, mountpoint, err);
-    return -1;
-  }
-
-  return 0;
-}
diff --git a/daemon/Makefile.am b/daemon/Makefile.am
index 216029b7c..8bf601367 100644
--- a/daemon/Makefile.am
+++ b/daemon/Makefile.am
@@ -83,7 +83,6 @@ guestfsd_SOURCES = \
 	../common/protocol/guestfs_protocol.h \
 	../common/utils/cleanups.h \
 	../common/utils/guestfs-utils.h \
-	9p.c \
 	acl.c \
 	actions.h \
 	available.c \
diff --git a/docs/C_SOURCE_FILES b/docs/C_SOURCE_FILES
index 060be051b..7a05f3b24 100644
--- a/docs/C_SOURCE_FILES
+++ b/docs/C_SOURCE_FILES
@@ -43,7 +43,6 @@ common/visit/visit.c
 common/visit/visit.h
 common/windows/windows.c
 common/windows/windows.h
-daemon/9p.c
 daemon/acl.c
 daemon/actions.h
 daemon/augeas.c
diff --git a/generator/actions_core.ml b/generator/actions_core.ml
index bb92ef2ca..5f849bad1 100644
--- a/generator/actions_core.ml
+++ b/generator/actions_core.ml
@@ -6157,27 +6157,6 @@ This returns true iff the device exists and contains all zero bytes.
 
 Note that for large devices this can take a long time to run." };
 
-  { defaults with
-    name = "list_9p"; added = (1, 11, 12);
-    style = RStringList (RPlainString, "mounttags"), [], [];
-    shortdesc = "list 9p filesystems";
-    longdesc = "\
-List all 9p filesystems attached to the guest.  A list of
-mount tags is returned." };
-
-  { defaults with
-    name = "mount_9p"; added = (1, 11, 12);
-    style = RErr, [String (PlainString, "mounttag"); String (PlainString, "mountpoint")], [OString "options"];
-    camel_name = "Mount9P";
-    shortdesc = "mount 9p filesystem";
-    longdesc = "\
-Mount the virtio-9p filesystem with the tag C<mounttag> on the
-directory C<mountpoint>.
-
-If required, C<trans=virtio> will be automatically added to the options.
-Any other options required can be passed in the optional C<options>
-parameter." };
-
   { defaults with
     name = "list_dm_devices"; added = (1, 11, 15);
     style = RStringList (RDevice, "devices"), [], [];
diff --git a/generator/proc_nr.ml b/generator/proc_nr.ml
index 74b95baf7..6b6cb7353 100644
--- a/generator/proc_nr.ml
+++ b/generator/proc_nr.ml
@@ -295,8 +295,6 @@ let proc_nr = [
 282, "internal_autosync";
 283, "is_zero";
 284, "is_zero_device";
-285, "list_9p";
-286, "mount_9p";
 287, "list_dm_devices";
 288, "ntfsresize";
 289, "btrfs_filesystem_resize";
diff --git a/gobject/Makefile.inc b/gobject/Makefile.inc
index 650f8ddac..c4e735967 100644
--- a/gobject/Makefile.inc
+++ b/gobject/Makefile.inc
@@ -94,7 +94,6 @@ guestfs_gobject_headers= \
   include/guestfs-gobject/optargs-mksquashfs.h \
   include/guestfs-gobject/optargs-mkswap.h \
   include/guestfs-gobject/optargs-mktemp.h \
-  include/guestfs-gobject/optargs-mount_9p.h \
   include/guestfs-gobject/optargs-mount_local.h \
   include/guestfs-gobject/optargs-ntfsclone_out.h \
   include/guestfs-gobject/optargs-ntfsfix.h \
@@ -188,7 +187,6 @@ guestfs_gobject_sources= \
   src/optargs-mksquashfs.c \
   src/optargs-mkswap.c \
   src/optargs-mktemp.c \
-  src/optargs-mount_9p.c \
   src/optargs-mount_local.c \
   src/optargs-ntfsclone_out.c \
   src/optargs-ntfsfix.c \
diff --git a/po/POTFILES b/po/POTFILES
index c5f4e6aa7..aeb701e32 100644
--- a/po/POTFILES
+++ b/po/POTFILES
@@ -26,7 +26,6 @@ common/utils/stringlists-utils.c
 common/utils/utils.c
 common/visit/visit.c
 common/windows/windows.c
-daemon/9p.c
 daemon/acl.c
 daemon/augeas.c
 daemon/available.c
@@ -251,7 +250,6 @@ gobject/src/optargs-mkfs_btrfs.c
 gobject/src/optargs-mksquashfs.c
 gobject/src/optargs-mkswap.c
 gobject/src/optargs-mktemp.c
-gobject/src/optargs-mount_9p.c
 gobject/src/optargs-mount_local.c
 gobject/src/optargs-ntfsclone_out.c
 gobject/src/optargs-ntfsfix.c
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 919e2f248..e3613fec4 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -43,7 +43,6 @@ check-slow:
 check-valgrind:
 	$(MAKE) VG="@VG@" check
 
-TESTS += 9p/test-9p.sh
 EXTRA_DIST += 9p/test-9p.sh
 
 SLOW_TESTS += bigdirs/test-big-dirs.pl
-- 
2.30.1