virtio-9p: move 9p files around

Now that we start adding more files related to 9pfs
it make sense to move them to a separate directory

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>

1 files changed, 0 insertions, 563 deletions

diff --git a/hw/virtio-9p-local.c b/hw/virtio-9p-local.c
deleted file mode 100644
index a8e7525bf6..0000000000
--- a/hw/virtio-9p-local.c
+++ /dev/null
@@ -1,563 +0,0 @@
-/*
- * Virtio 9p Posix callback
- *
- * Copyright IBM, Corp. 2010
- *
- * Authors:
- *  Anthony Liguori   <aliguori@us.ibm.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
- *
- */
-#include "virtio.h"
-#include "virtio-9p.h"
-#include "virtio-9p-xattr.h"
-#include <arpa/inet.h>
-#include <pwd.h>
-#include <grp.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <attr/xattr.h>
-
-
-static int local_lstat(FsContext *fs_ctx, const char *path, struct stat *stbuf)
-{
-    int err;
-    err =  lstat(rpath(fs_ctx, path), stbuf);
-    if (err) {
-        return err;
-    }
-    if (fs_ctx->fs_sm == SM_MAPPED) {
-        /* Actual credentials are part of extended attrs */
-        uid_t tmp_uid;
-        gid_t tmp_gid;
-        mode_t tmp_mode;
-        dev_t tmp_dev;
-        if (getxattr(rpath(fs_ctx, path), "user.virtfs.uid", &tmp_uid,
-                    sizeof(uid_t)) > 0) {
-            stbuf->st_uid = tmp_uid;
-        }
-        if (getxattr(rpath(fs_ctx, path), "user.virtfs.gid", &tmp_gid,
-                    sizeof(gid_t)) > 0) {
-            stbuf->st_gid = tmp_gid;
-        }
-        if (getxattr(rpath(fs_ctx, path), "user.virtfs.mode", &tmp_mode,
-                    sizeof(mode_t)) > 0) {
-            stbuf->st_mode = tmp_mode;
-        }
-        if (getxattr(rpath(fs_ctx, path), "user.virtfs.rdev", &tmp_dev,
-                        sizeof(dev_t)) > 0) {
-                stbuf->st_rdev = tmp_dev;
-        }
-    }
-    return err;
-}
-
-static int local_set_xattr(const char *path, FsCred *credp)
-{
-    int err;
-    if (credp->fc_uid != -1) {
-        err = setxattr(path, "user.virtfs.uid", &credp->fc_uid, sizeof(uid_t),
-                0);
-        if (err) {
-            return err;
-        }
-    }
-    if (credp->fc_gid != -1) {
-        err = setxattr(path, "user.virtfs.gid", &credp->fc_gid, sizeof(gid_t),
-                0);
-        if (err) {
-            return err;
-        }
-    }
-    if (credp->fc_mode != -1) {
-        err = setxattr(path, "user.virtfs.mode", &credp->fc_mode,
-                sizeof(mode_t), 0);
-        if (err) {
-            return err;
-        }
-    }
-    if (credp->fc_rdev != -1) {
-        err = setxattr(path, "user.virtfs.rdev", &credp->fc_rdev,
-                sizeof(dev_t), 0);
-        if (err) {
-            return err;
-        }
-    }
-    return 0;
-}
-
-static int local_post_create_passthrough(FsContext *fs_ctx, const char *path,
-        FsCred *credp)
-{
-    if (chmod(rpath(fs_ctx, path), credp->fc_mode & 07777) < 0) {
-        return -1;
-    }
-    if (lchown(rpath(fs_ctx, path), credp->fc_uid, credp->fc_gid) < 0) {
-        /*
-         * If we fail to change ownership and if we are
-         * using security model none. Ignore the error
-         */
-        if (fs_ctx->fs_sm != SM_NONE) {
-            return -1;
-        }
-    }
-    return 0;
-}
-
-static ssize_t local_readlink(FsContext *fs_ctx, const char *path,
-        char *buf, size_t bufsz)
-{
-    ssize_t tsize = -1;
-    if (fs_ctx->fs_sm == SM_MAPPED) {
-        int fd;
-        fd = open(rpath(fs_ctx, path), O_RDONLY);
-        if (fd == -1) {
-            return -1;
-        }
-        do {
-            tsize = read(fd, (void *)buf, bufsz);
-        } while (tsize == -1 && errno == EINTR);
-        close(fd);
-        return tsize;
-    } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) ||
-               (fs_ctx->fs_sm == SM_NONE)) {
-        tsize = readlink(rpath(fs_ctx, path), buf, bufsz);
-    }
-    return tsize;
-}
-
-static int local_close(FsContext *ctx, int fd)
-{
-    return close(fd);
-}
-
-static int local_closedir(FsContext *ctx, DIR *dir)
-{
-    return closedir(dir);
-}
-
-static int local_open(FsContext *ctx, const char *path, int flags)
-{
-    return open(rpath(ctx, path), flags);
-}
-
-static DIR *local_opendir(FsContext *ctx, const char *path)
-{
-    return opendir(rpath(ctx, path));
-}
-
-static void local_rewinddir(FsContext *ctx, DIR *dir)
-{
-    return rewinddir(dir);
-}
-
-static off_t local_telldir(FsContext *ctx, DIR *dir)
-{
-    return telldir(dir);
-}
-
-static struct dirent *local_readdir(FsContext *ctx, DIR *dir)
-{
-    return readdir(dir);
-}
-
-static void local_seekdir(FsContext *ctx, DIR *dir, off_t off)
-{
-    return seekdir(dir, off);
-}
-
-static ssize_t local_preadv(FsContext *ctx, int fd, const struct iovec *iov,
-                            int iovcnt, off_t offset)
-{
-#ifdef CONFIG_PREADV
-    return preadv(fd, iov, iovcnt, offset);
-#else
-    int err = lseek(fd, offset, SEEK_SET);
-    if (err == -1) {
-        return err;
-    } else {
-        return readv(fd, iov, iovcnt);
-    }
-#endif
-}
-
-static ssize_t local_pwritev(FsContext *ctx, int fd, const struct iovec *iov,
-                            int iovcnt, off_t offset)
-{
-#ifdef CONFIG_PREADV
-    return pwritev(fd, iov, iovcnt, offset);
-#else
-    int err = lseek(fd, offset, SEEK_SET);
-    if (err == -1) {
-        return err;
-    } else {
-        return writev(fd, iov, iovcnt);
-    }
-#endif
-}
-
-static int local_chmod(FsContext *fs_ctx, const char *path, FsCred *credp)
-{
-    if (fs_ctx->fs_sm == SM_MAPPED) {
-        return local_set_xattr(rpath(fs_ctx, path), credp);
-    } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) ||
-               (fs_ctx->fs_sm == SM_NONE)) {
-        return chmod(rpath(fs_ctx, path), credp->fc_mode);
-    }
-    return -1;
-}
-
-static int local_mknod(FsContext *fs_ctx, const char *path, FsCred *credp)
-{
-    int err = -1;
-    int serrno = 0;
-
-    /* Determine the security model */
-    if (fs_ctx->fs_sm == SM_MAPPED) {
-        err = mknod(rpath(fs_ctx, path), SM_LOCAL_MODE_BITS|S_IFREG, 0);
-        if (err == -1) {
-            return err;
-        }
-        local_set_xattr(rpath(fs_ctx, path), credp);
-        if (err == -1) {
-            serrno = errno;
-            goto err_end;
-        }
-    } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) ||
-               (fs_ctx->fs_sm == SM_NONE)) {
-        err = mknod(rpath(fs_ctx, path), credp->fc_mode, credp->fc_rdev);
-        if (err == -1) {
-            return err;
-        }
-        err = local_post_create_passthrough(fs_ctx, path, credp);
-        if (err == -1) {
-            serrno = errno;
-            goto err_end;
-        }
-    }
-    return err;
-
-err_end:
-    remove(rpath(fs_ctx, path));
-    errno = serrno;
-    return err;
-}
-
-static int local_mkdir(FsContext *fs_ctx, const char *path, FsCred *credp)
-{
-    int err = -1;
-    int serrno = 0;
-
-    /* Determine the security model */
-    if (fs_ctx->fs_sm == SM_MAPPED) {
-        err = mkdir(rpath(fs_ctx, path), SM_LOCAL_DIR_MODE_BITS);
-        if (err == -1) {
-            return err;
-        }
-        credp->fc_mode = credp->fc_mode|S_IFDIR;
-        err = local_set_xattr(rpath(fs_ctx, path), credp);
-        if (err == -1) {
-            serrno = errno;
-            goto err_end;
-        }
-    } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) ||
-               (fs_ctx->fs_sm == SM_NONE)) {
-        err = mkdir(rpath(fs_ctx, path), credp->fc_mode);
-        if (err == -1) {
-            return err;
-        }
-        err = local_post_create_passthrough(fs_ctx, path, credp);
-        if (err == -1) {
-            serrno = errno;
-            goto err_end;
-        }
-    }
-    return err;
-
-err_end:
-    remove(rpath(fs_ctx, path));
-    errno = serrno;
-    return err;
-}
-
-static int local_fstat(FsContext *fs_ctx, int fd, struct stat *stbuf)
-{
-    int err;
-    err = fstat(fd, stbuf);
-    if (err) {
-        return err;
-    }
-    if (fs_ctx->fs_sm == SM_MAPPED) {
-        /* Actual credentials are part of extended attrs */
-        uid_t tmp_uid;
-        gid_t tmp_gid;
-        mode_t tmp_mode;
-        dev_t tmp_dev;
-
-        if (fgetxattr(fd, "user.virtfs.uid", &tmp_uid, sizeof(uid_t)) > 0) {
-            stbuf->st_uid = tmp_uid;
-        }
-        if (fgetxattr(fd, "user.virtfs.gid", &tmp_gid, sizeof(gid_t)) > 0) {
-            stbuf->st_gid = tmp_gid;
-        }
-        if (fgetxattr(fd, "user.virtfs.mode", &tmp_mode, sizeof(mode_t)) > 0) {
-            stbuf->st_mode = tmp_mode;
-        }
-        if (fgetxattr(fd, "user.virtfs.rdev", &tmp_dev, sizeof(dev_t)) > 0) {
-                stbuf->st_rdev = tmp_dev;
-        }
-    }
-    return err;
-}
-
-static int local_open2(FsContext *fs_ctx, const char *path, int flags,
-        FsCred *credp)
-{
-    int fd = -1;
-    int err = -1;
-    int serrno = 0;
-
-    /* Determine the security model */
-    if (fs_ctx->fs_sm == SM_MAPPED) {
-        fd = open(rpath(fs_ctx, path), flags, SM_LOCAL_MODE_BITS);
-        if (fd == -1) {
-            return fd;
-        }
-        credp->fc_mode = credp->fc_mode|S_IFREG;
-        /* Set cleint credentials in xattr */
-        err = local_set_xattr(rpath(fs_ctx, path), credp);
-        if (err == -1) {
-            serrno = errno;
-            goto err_end;
-        }
-    } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) ||
-               (fs_ctx->fs_sm == SM_NONE)) {
-        fd = open(rpath(fs_ctx, path), flags, credp->fc_mode);
-        if (fd == -1) {
-            return fd;
-        }
-        err = local_post_create_passthrough(fs_ctx, path, credp);
-        if (err == -1) {
-            serrno = errno;
-            goto err_end;
-        }
-    }
-    return fd;
-
-err_end:
-    close(fd);
-    remove(rpath(fs_ctx, path));
-    errno = serrno;
-    return err;
-}
-
-
-static int local_symlink(FsContext *fs_ctx, const char *oldpath,
-        const char *newpath, FsCred *credp)
-{
-    int err = -1;
-    int serrno = 0;
-
-    /* Determine the security model */
-    if (fs_ctx->fs_sm == SM_MAPPED) {
-        int fd;
-        ssize_t oldpath_size, write_size;
-        fd = open(rpath(fs_ctx, newpath), O_CREAT|O_EXCL|O_RDWR,
-                SM_LOCAL_MODE_BITS);
-        if (fd == -1) {
-            return fd;
-        }
-        /* Write the oldpath (target) to the file. */
-        oldpath_size = strlen(oldpath) + 1;
-        do {
-            write_size = write(fd, (void *)oldpath, oldpath_size);
-        } while (write_size == -1 && errno == EINTR);
-
-        if (write_size != oldpath_size) {
-            serrno = errno;
-            close(fd);
-            err = -1;
-            goto err_end;
-        }
-        close(fd);
-        /* Set cleint credentials in symlink's xattr */
-        credp->fc_mode = credp->fc_mode|S_IFLNK;
-        err = local_set_xattr(rpath(fs_ctx, newpath), credp);
-        if (err == -1) {
-            serrno = errno;
-            goto err_end;
-        }
-    } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) ||
-               (fs_ctx->fs_sm == SM_NONE)) {
-        err = symlink(oldpath, rpath(fs_ctx, newpath));
-        if (err) {
-            return err;
-        }
-        err = lchown(rpath(fs_ctx, newpath), credp->fc_uid, credp->fc_gid);
-        if (err == -1) {
-            /*
-             * If we fail to change ownership and if we are
-             * using security model none. Ignore the error
-             */
-            if (fs_ctx->fs_sm != SM_NONE) {
-                serrno = errno;
-                goto err_end;
-            } else
-                err = 0;
-        }
-    }
-    return err;
-
-err_end:
-    remove(rpath(fs_ctx, newpath));
-    errno = serrno;
-    return err;
-}
-
-static int local_link(FsContext *ctx, const char *oldpath, const char *newpath)
-{
-    char *tmp = qemu_strdup(rpath(ctx, oldpath));
-    int err, serrno = 0;
-
-    if (tmp == NULL) {
-        return -ENOMEM;
-    }
-
-    err = link(tmp, rpath(ctx, newpath));
-    if (err == -1) {
-        serrno = errno;
-    }
-
-    qemu_free(tmp);
-
-    if (err == -1) {
-        errno = serrno;
-    }
-
-    return err;
-}
-
-static int local_truncate(FsContext *ctx, const char *path, off_t size)
-{
-    return truncate(rpath(ctx, path), size);
-}
-
-static int local_rename(FsContext *ctx, const char *oldpath,
-                        const char *newpath)
-{
-    char *tmp;
-    int err;
-
-    tmp = qemu_strdup(rpath(ctx, oldpath));
-
-    err = rename(tmp, rpath(ctx, newpath));
-    if (err == -1) {
-        int serrno = errno;
-        qemu_free(tmp);
-        errno = serrno;
-    } else {
-        qemu_free(tmp);
-    }
-
-    return err;
-
-}
-
-static int local_chown(FsContext *fs_ctx, const char *path, FsCred *credp)
-{
-    if ((credp->fc_uid == -1 && credp->fc_gid == -1) ||
-            (fs_ctx->fs_sm == SM_PASSTHROUGH)) {
-        return lchown(rpath(fs_ctx, path), credp->fc_uid, credp->fc_gid);
-    } else if (fs_ctx->fs_sm == SM_MAPPED) {
-        return local_set_xattr(rpath(fs_ctx, path), credp);
-    } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) ||
-               (fs_ctx->fs_sm == SM_NONE)) {
-        return lchown(rpath(fs_ctx, path), credp->fc_uid, credp->fc_gid);
-    }
-    return -1;
-}
-
-static int local_utimensat(FsContext *s, const char *path,
-                           const struct timespec *buf)
-{
-    return qemu_utimensat(AT_FDCWD, rpath(s, path), buf, AT_SYMLINK_NOFOLLOW);
-}
-
-static int local_remove(FsContext *ctx, const char *path)
-{
-    return remove(rpath(ctx, path));
-}
-
-static int local_fsync(FsContext *ctx, int fd, int datasync)
-{
-    if (datasync) {
-        return qemu_fdatasync(fd);
-    } else {
-        return fsync(fd);
-    }
-}
-
-static int local_statfs(FsContext *s, const char *path, struct statfs *stbuf)
-{
-   return statfs(rpath(s, path), stbuf);
-}
-
-static ssize_t local_lgetxattr(FsContext *ctx, const char *path,
-                               const char *name, void *value, size_t size)
-{
-    return v9fs_get_xattr(ctx, path, name, value, size);
-}
-
-static ssize_t local_llistxattr(FsContext *ctx, const char *path,
-                                void *value, size_t size)
-{
-    return v9fs_list_xattr(ctx, path, value, size);
-}
-
-static int local_lsetxattr(FsContext *ctx, const char *path, const char *name,
-                           void *value, size_t size, int flags)
-{
-    return v9fs_set_xattr(ctx, path, name, value, size, flags);
-}
-
-static int local_lremovexattr(FsContext *ctx,
-                              const char *path, const char *name)
-{
-    return v9fs_remove_xattr(ctx, path, name);
-}
-
-
-FileOperations local_ops = {
-    .lstat = local_lstat,
-    .readlink = local_readlink,
-    .close = local_close,
-    .closedir = local_closedir,
-    .open = local_open,
-    .opendir = local_opendir,
-    .rewinddir = local_rewinddir,
-    .telldir = local_telldir,
-    .readdir = local_readdir,
-    .seekdir = local_seekdir,
-    .preadv = local_preadv,
-    .pwritev = local_pwritev,
-    .chmod = local_chmod,
-    .mknod = local_mknod,
-    .mkdir = local_mkdir,
-    .fstat = local_fstat,
-    .open2 = local_open2,
-    .symlink = local_symlink,
-    .link = local_link,
-    .truncate = local_truncate,
-    .rename = local_rename,
-    .chown = local_chown,
-    .utimensat = local_utimensat,
-    .remove = local_remove,
-    .fsync = local_fsync,
-    .statfs = local_statfs,
-    .lgetxattr = local_lgetxattr,
-    .llistxattr = local_llistxattr,
-    .lsetxattr = local_lsetxattr,
-    .lremovexattr = local_lremovexattr,
-};