Add support to do chmod operation in chroot process. Signed-off-by: M. Mohan Kumar <mo...@in.ibm.com> --- hw/9pfs/virtio-9p-chroot-worker.c | 18 ++++++++++++++++++ hw/9pfs/virtio-9p-chroot.h | 1 + hw/9pfs/virtio-9p-local.c | 5 +++-- 3 files changed, 22 insertions(+), 2 deletions(-)
diff --git a/hw/9pfs/virtio-9p-chroot-worker.c b/hw/9pfs/virtio-9p-chroot-worker.c index 9bb94f2..d297b50 100644 --- a/hw/9pfs/virtio-9p-chroot-worker.c +++ b/hw/9pfs/virtio-9p-chroot-worker.c @@ -198,6 +198,21 @@ static int chroot_do_rename(V9fsFileObjectRequest *request) return 0; } +/* + * Change permissions of a file object + * Returns 0 on success and -errno on failure + */ +static int chroot_do_chmod(V9fsFileObjectRequest *request) +{ + int retval; + + retval = chmod(request->path.path, request->data.mode); + if (retval < 0) { + return -errno; + } + return 0; +} + static void chroot_daemonize(int chroot_sock) { sigset_t sigset; @@ -307,6 +322,9 @@ int v9fs_chroot(FsContext *fs_ctx) case T_RENAME: retval = chroot_do_rename(&request); break; + case T_CHMOD: + retval = chroot_do_chmod(&request); + break; default: retval = -1; break; diff --git a/hw/9pfs/virtio-9p-chroot.h b/hw/9pfs/virtio-9p-chroot.h index fda60af..fc7a134 100644 --- a/hw/9pfs/virtio-9p-chroot.h +++ b/hw/9pfs/virtio-9p-chroot.h @@ -11,6 +11,7 @@ #define T_LINK 6 #define T_REMOVE 7 #define T_RENAME 8 +#define T_CHMOD 9 #define V9FS_FD_VALID INT_MAX diff --git a/hw/9pfs/virtio-9p-local.c b/hw/9pfs/virtio-9p-local.c index 68551e2..50e55ed 100644 --- a/hw/9pfs/virtio-9p-local.c +++ b/hw/9pfs/virtio-9p-local.c @@ -302,9 +302,10 @@ static int local_chmod(FsContext *fs_ctx, V9fsPath *fs_path, FsCred *credp) if (fs_ctx->fs_sm == SM_MAPPED) { return local_set_xattr(rpath(fs_ctx, path, buffer), credp); - } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) || - (fs_ctx->fs_sm == SM_NONE)) { + } else if (fs_ctx->fs_sm == SM_NONE) { return chmod(rpath(fs_ctx, path, buffer), credp->fc_mode); + } else { + return passthrough_request(fs_ctx, NULL, path, 0, credp, T_CHMOD); } return -1; } -- 1.7.6