[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [V11 08/15] virtio-9p: Removing file or directory in chroot
From: |
M. Mohan Kumar |
Subject: |
[Qemu-devel] [V11 08/15] virtio-9p: Removing file or directory in chroot environment |
Date: |
Fri, 24 Jun 2011 13:52:17 +0530 |
From: "M. Mohan Kumar" <address@hidden>
Support for removing file or directory in chroot environment. Add
interfaces to remove file/directory in chroot worker and qemu side.
Signed-off-by: M. Mohan Kumar <address@hidden>
---
hw/9pfs/virtio-9p-chroot-worker.c | 18 ++++++++++++++++++
hw/9pfs/virtio-9p-chroot.h | 1 +
hw/9pfs/virtio-9p-local.c | 4 ++++
3 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/hw/9pfs/virtio-9p-chroot-worker.c
b/hw/9pfs/virtio-9p-chroot-worker.c
index 10f290d..f269c7b 100644
--- a/hw/9pfs/virtio-9p-chroot-worker.c
+++ b/hw/9pfs/virtio-9p-chroot-worker.c
@@ -169,6 +169,21 @@ unset_uid:
return retval;
}
+/*
+ * Remove a file object
+ * Returns 0 on success and -errno on failure
+ */
+static int chroot_do_remove(V9fsFileObjectRequest *request)
+{
+ int retval;
+
+ retval = remove(request->path.path);
+ if (retval < 0) {
+ return -errno;
+ }
+ return 0;
+}
+
static void chroot_daemonize(int chroot_sock)
{
sigset_t sigset;
@@ -272,6 +287,9 @@ int v9fs_chroot(FsContext *fs_ctx)
case T_MKNOD:
retval = chroot_do_create_special(&request);
break;
+ case T_REMOVE:
+ retval = chroot_do_remove(&request);
+ break;
default:
retval = -1;
break;
diff --git a/hw/9pfs/virtio-9p-chroot.h b/hw/9pfs/virtio-9p-chroot.h
index 9075361..9d69739 100644
--- a/hw/9pfs/virtio-9p-chroot.h
+++ b/hw/9pfs/virtio-9p-chroot.h
@@ -9,6 +9,7 @@
#define T_MKNOD 4
#define T_SYMLINK 5
#define T_LINK 6
+#define T_REMOVE 7
#define V9FS_FD_VALID INT_MAX
diff --git a/hw/9pfs/virtio-9p-local.c b/hw/9pfs/virtio-9p-local.c
index a1eff5f..f2d66e1 100644
--- a/hw/9pfs/virtio-9p-local.c
+++ b/hw/9pfs/virtio-9p-local.c
@@ -617,6 +617,10 @@ static int local_utimensat(FsContext *s, V9fsPath *fs_path,
static int local_remove(FsContext *ctx, const char *path)
{
char buffer[PATH_MAX];
+
+ if (ctx->fs_sm == SM_PASSTHROUGH) {
+ return passthrough_request(ctx, NULL, path, 0, NULL, T_REMOVE);
+ }
return remove(rpath(ctx, path, buffer));
}
--
1.7.5.4
- [Qemu-devel] [V11 00/15] virtio-9p: Use chroot to safely access files in passthrough security model, M. Mohan Kumar, 2011/06/24
- [Qemu-devel] [V11 12/15] virtio-9p: chown in chroot environment, M. Mohan Kumar, 2011/06/24
- [Qemu-devel] [V11 11/15] virtio-9p: chmod in chroot environment, M. Mohan Kumar, 2011/06/24
- [Qemu-devel] [V11 08/15] virtio-9p: Removing file or directory in chroot environment,
M. Mohan Kumar <=
- [Qemu-devel] [V11 07/15] virtio-9p: Creating special files in chroot environment, M. Mohan Kumar, 2011/06/24
- [Qemu-devel] [V11 13/15] virtio-9p: stat in chroot environment, M. Mohan Kumar, 2011/06/24
- [Qemu-devel] [V11 03/15] virtio-9p: Provide chroot worker side interfaces, M. Mohan Kumar, 2011/06/24
- [Qemu-devel] [V11 02/15] virtio-9p: Enable CONFIG_THREAD if CONFIG_VIRTFS is enabled, M. Mohan Kumar, 2011/06/24
- [Qemu-devel] [V11 15/15] virtio-9p: Chroot environment for other functions, M. Mohan Kumar, 2011/06/24
- [Qemu-devel] [V11 10/15] virtio-9p: Move file post creation changes to none security model, M. Mohan Kumar, 2011/06/24
- [Qemu-devel] [V11 06/15] virtio-9p: Create support in chroot environment, M. Mohan Kumar, 2011/06/24
- [Qemu-devel] [V11 14/15] virtio-9p: readlink in chroot environment, M. Mohan Kumar, 2011/06/24
- [Qemu-devel] [V11 05/15] virtio-9p: Support for opening a file in chroot environment, M. Mohan Kumar, 2011/06/24
- [Qemu-devel] [V11 09/15] virtio-9p: Rename in chroot environment, M. Mohan Kumar, 2011/06/24