diff options
Diffstat (limited to 'xlators/features/read-only/src/read-only.c')
| -rw-r--r-- | xlators/features/read-only/src/read-only.c | 306 |
1 files changed, 306 insertions, 0 deletions
diff --git a/xlators/features/read-only/src/read-only.c b/xlators/features/read-only/src/read-only.c new file mode 100644 index 00000000000..08412bf047d --- /dev/null +++ b/xlators/features/read-only/src/read-only.c @@ -0,0 +1,306 @@ +/* + Copyright (c) 2008-2009 Gluster, Inc. <http://www.gluster.com> + This file is part of GlusterFS. + + GlusterFS 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 3 of the License, + or (at your option) any later version. + + GlusterFS 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, see + <http://www.gnu.org/licenses/>. +*/ + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "xlator.h" +#include "defaults.h" + +int32_t +ro_xattrop (call_frame_t *frame, xlator_t *this, loc_t *loc, + gf_xattrop_flags_t flags, dict_t *dict) +{ + STACK_UNWIND_STRICT (xattrop, frame, -1, EROFS, NULL); + return 0; +} + +int32_t +ro_fxattrop (call_frame_t *frame, xlator_t *this, + fd_t *fd, gf_xattrop_flags_t flags, dict_t *dict) +{ + STACK_UNWIND_STRICT (fxattrop, frame, -1, EROFS, NULL); + return 0; +} + +int32_t +ro_entrylk (call_frame_t *frame, xlator_t *this, const char *volume, + loc_t *loc, const char *basename, entrylk_cmd cmd, + entrylk_type type) +{ + STACK_UNWIND_STRICT (entrylk, frame, -1, EROFS); + return 0; +} + +int32_t +ro_fentrylk (call_frame_t *frame, xlator_t *this, const char *volume, + fd_t *fd, const char *basename, entrylk_cmd cmd, entrylk_type type) +{ + STACK_UNWIND_STRICT (fentrylk, frame, -1, EROFS); + return 0; +} + +int32_t +ro_inodelk (call_frame_t *frame, xlator_t *this, const char *volume, + loc_t *loc, int32_t cmd, struct flock *lock) +{ + STACK_UNWIND_STRICT (inodelk, frame, -1, EROFS); + return 0; +} + +int32_t +ro_finodelk (call_frame_t *frame, xlator_t *this, const char *volume, + fd_t *fd, int32_t cmd, struct flock *lock) +{ + STACK_UNWIND_STRICT (finodelk, frame, -1, EROFS); + return 0; +} + +int32_t +ro_lk (call_frame_t *frame, xlator_t *this, fd_t *fd, int cmd, + struct flock *flock) +{ + STACK_UNWIND_STRICT (lk, frame, -1, EROFS, NULL); + return 0; +} + +int32_t +ro_setattr (call_frame_t *frame, xlator_t *this, loc_t *loc, + struct iatt *stbuf, int32_t valid) +{ + STACK_UNWIND_STRICT (setattr, frame, -1, EROFS, NULL, NULL); + return 0; +} + +int32_t +ro_fsetattr (call_frame_t *frame, xlator_t *this, fd_t *fd, + struct iatt *stbuf, int32_t valid) +{ + STACK_UNWIND_STRICT (fsetattr, frame, -1, EROFS, NULL, NULL); + return 0; +} + + +int32_t +ro_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset) +{ + STACK_UNWIND_STRICT (truncate, frame, -1, EROFS, NULL, NULL); + return 0; +} + +int32_t +ro_ftruncate (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset) +{ + STACK_UNWIND_STRICT (ftruncate, frame, -1, EROFS, NULL, NULL); + return 0; +} + +int32_t +ro_mknod (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode, + dev_t rdev) +{ + STACK_UNWIND_STRICT (mknod, frame, -1, EROFS, NULL, NULL, NULL, NULL); + return 0; +} + + +int32_t +ro_mkdir (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode) +{ + STACK_UNWIND_STRICT (mkdir, frame, -1, EROFS, NULL, NULL, NULL, NULL); + return 0; +} + +int32_t +ro_unlink (call_frame_t *frame, xlator_t *this, loc_t *loc) +{ + STACK_UNWIND_STRICT (unlink, frame, -1, EROFS, NULL, NULL); + return 0; +} + +int32_t +ro_rmdir (call_frame_t *frame, xlator_t *this, loc_t *loc) +{ + STACK_UNWIND_STRICT (rmdir, frame, -1, EROFS, NULL, NULL); + return 0; +} + +int32_t +ro_symlink (call_frame_t *frame, xlator_t *this, const char *linkpath, + loc_t *loc) +{ + STACK_UNWIND_STRICT (symlink, frame, -1, EROFS, NULL, NULL, NULL, NULL); + return 0; +} + + + +int32_t +ro_rename (call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc) +{ + STACK_UNWIND_STRICT (rename, frame, -1, EROFS, NULL, NULL, NULL, NULL, + NULL); + return 0; +} + + +int32_t +ro_link (call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc) +{ + STACK_UNWIND_STRICT (link, frame, -1, EROFS, NULL, NULL, NULL, NULL); + return 0; +} + +int32_t +ro_create (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, + mode_t mode, fd_t *fd) +{ + STACK_UNWIND_STRICT (create, frame, -1, EROFS, NULL, NULL, NULL, + NULL, NULL); + return 0; +} + + +static int32_t +ro_open_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, + int32_t op_errno, fd_t *fd) +{ + STACK_UNWIND_STRICT (open, frame, op_ret, op_errno, fd); + return 0; +} + +int32_t +ro_open (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, + fd_t *fd, int32_t wbflags) +{ + if (((flags & O_ACCMODE) == O_WRONLY) || + ((flags & O_ACCMODE) == O_RDWR)) { + STACK_UNWIND_STRICT (open, frame, -1, EROFS, NULL); + return 0; + } + + STACK_WIND (frame, ro_open_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->open, loc, flags, fd, wbflags); + return 0; +} + +int32_t +ro_fsetxattr (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *dict, + int32_t flags) +{ + STACK_UNWIND_STRICT (fsetxattr, frame, -1, EROFS); + return 0; +} + +int32_t +ro_fsyncdir (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t flags) +{ + STACK_UNWIND_STRICT (fsyncdir, frame, -1, EROFS); + return 0; +} + +int32_t +ro_writev (call_frame_t *frame, xlator_t *this, fd_t *fd, struct iovec *vector, + int32_t count, off_t off, struct iobref *iobref) +{ + STACK_UNWIND_STRICT (writev, frame, -1, EROFS, NULL, NULL); + return 0; +} + + +int32_t +ro_setxattr (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *dict, + int32_t flags) +{ + STACK_UNWIND_STRICT (setxattr, frame, -1, EROFS); + return 0; +} + +int32_t +ro_removexattr (call_frame_t *frame, xlator_t *this, loc_t *loc, + const char *name) +{ + STACK_UNWIND_STRICT (removexattr, frame, -1, EROFS); + return 0; +} + +int32_t +init (xlator_t *this) +{ + if (!this->children || this->children->next) { + gf_log (this->name, GF_LOG_ERROR, + "translator not configured with exactly one child"); + return -1; + } + + if (!this->parents) { + gf_log (this->name, GF_LOG_WARNING, + "dangling volume. check volfile "); + } + + return 0; +} + + +void +fini (xlator_t *this) +{ + return; +} + + +struct xlator_fops fops = { + .mknod = ro_mknod, + .mkdir = ro_mkdir, + .unlink = ro_unlink, + .rmdir = ro_rmdir, + .symlink = ro_symlink, + .rename = ro_rename, + .link = ro_link, + .truncate = ro_truncate, + .open = ro_open, + .writev = ro_writev, + .setxattr = ro_setxattr, + .fsetxattr = ro_fsetxattr, + .removexattr = ro_removexattr, + .fsyncdir = ro_fsyncdir, + .ftruncate = ro_ftruncate, + .create = ro_create, + .setattr = ro_setattr, + .fsetattr = ro_fsetattr, + .xattrop = ro_xattrop, + .fxattrop = ro_fxattrop, + .inodelk = ro_inodelk, + .finodelk = ro_finodelk, + .entrylk = ro_entrylk, + .fentrylk = ro_fentrylk, + .lk = ro_lk, +}; + +struct xlator_mops mops = { +}; + +struct xlator_cbks cbks = { +}; + +struct volume_options options[] = { + { .key = {NULL} }, +}; |