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-rw-r--r--xlators/features/read-only/src/worm.c483
1 files changed, 454 insertions, 29 deletions
diff --git a/xlators/features/read-only/src/worm.c b/xlators/features/read-only/src/worm.c
index f117e20..2f35f1f 100644
--- a/xlators/features/read-only/src/worm.c
+++ b/xlators/features/read-only/src/worm.c
@@ -1,5 +1,5 @@
/*
- Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
+ Copyright (c) 2008-2012, 2016 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
@@ -12,6 +12,9 @@
#include "read-only-common.h"
#include "read-only-mem-types.h"
#include "read-only.h"
+#include "syncop.h"
+#include "worm-helper.h"
+
int32_t
mem_acct_init (xlator_t *this)
@@ -26,35 +29,393 @@ mem_acct_init (xlator_t *this)
return ret;
}
-static int32_t
-worm_open_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret,
- int32_t op_errno, fd_t *fd, dict_t *xdata)
-{
- STACK_UNWIND_STRICT (open, frame, op_ret, op_errno, fd, xdata);
- return 0;
-}
int32_t
worm_open (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
fd_t *fd, dict_t *xdata)
{
if (is_readonly_or_worm_enabled (this) &&
- ((((flags & O_ACCMODE) == O_WRONLY) ||
- ((flags & O_ACCMODE) == O_RDWR)) &&
- !(flags & O_APPEND))) {
+ (flags & (O_WRONLY | O_RDWR | O_APPEND))) {
STACK_UNWIND_STRICT (open, frame, -1, EROFS, NULL, NULL);
return 0;
}
- STACK_WIND (frame, worm_open_cbk, FIRST_CHILD(this),
+ STACK_WIND_TAIL (frame, FIRST_CHILD(this),
FIRST_CHILD(this)->fops->open, loc, flags, fd, xdata);
return 0;
}
+
+int32_t
+worm_link (call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc,
+ dict_t *xdata)
+{
+ int ret = -1;
+ int label = -1;
+
+ if (is_readonly_or_worm_enabled (this))
+ goto unwind;
+ gf_uuid_copy (oldloc->gfid, oldloc->inode->gfid);
+ if (is_wormfile (this, _gf_false, oldloc))
+ goto wind;
+ label = state_transition (this, _gf_false, oldloc, GF_FOP_LINK, &ret);
+ if (label == 0)
+ goto wind;
+ if (label == 1)
+ goto unwind;
+ if (label == 2)
+ goto out;
+
+unwind:
+ STACK_UNWIND_STRICT (link, frame, -1, EROFS, NULL, NULL, NULL, NULL,
+ NULL);
+ ret = 0;
+ goto out;
+wind:
+ STACK_WIND_TAIL (frame, FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->link,
+ oldloc, newloc, xdata);
+ ret = 0;
+out:
+ if (label == 2)
+ STACK_UNWIND_STRICT (link, frame, -1, ret, NULL, NULL,
+ NULL, NULL, NULL);
+ return ret;
+}
+
+
+int32_t
+worm_unlink (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
+ dict_t *xdata)
+{
+ int ret = -1;
+ int label = -1;
+
+ if (is_readonly_or_worm_enabled (this))
+ goto unwind;
+ gf_uuid_copy (loc->gfid, loc->inode->gfid);
+ if (is_wormfile (this, _gf_false, loc))
+ goto wind;
+ label = state_transition (this, _gf_false, loc, GF_FOP_UNLINK, &ret);
+ if (label == 0)
+ goto wind;
+ if (label == 1)
+ goto unwind;
+ if (label == 2)
+ goto out;
+
+unwind:
+ STACK_UNWIND_STRICT (unlink, frame, -1, EROFS, NULL, NULL, NULL);
+ ret = 0;
+ goto out;
+wind:
+ STACK_WIND_TAIL (frame, FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->unlink,
+ loc, flags, xdata);
+ ret = 0;
+out:
+ if (label == 2)
+ STACK_UNWIND_STRICT (unlink, frame, -1, ret,
+ NULL, NULL, NULL);
+ return ret;
+}
+
+
+int32_t
+worm_rename (call_frame_t *frame, xlator_t *this,
+ loc_t *oldloc, loc_t *newloc, dict_t *xdata)
+{
+ int ret = -1;
+ int label = -1;
+
+ if (is_readonly_or_worm_enabled (this))
+ goto unwind;
+ gf_uuid_copy (oldloc->gfid, oldloc->inode->gfid);
+ if (is_wormfile (this, _gf_false, oldloc))
+ goto wind;
+ label = state_transition (this, _gf_false, oldloc, GF_FOP_RENAME,
+ &ret);
+ if (label == 0)
+ goto wind;
+ if (label == 1)
+ goto unwind;
+ if (label == 2)
+ goto out;
+
+unwind:
+ STACK_UNWIND_STRICT (rename, frame, -1, EROFS, NULL,
+ NULL, NULL, NULL, NULL, NULL);
+ ret = 0;
+ goto out;
+wind:
+ STACK_WIND_TAIL (frame, FIRST_CHILD (this),
+ FIRST_CHILD (this)->fops->rename,
+ oldloc, newloc, xdata);
+ ret = 0;
+out:
+ if (label == 2)
+ STACK_UNWIND_STRICT (rename, frame, -1, ret, NULL,
+ NULL, NULL, NULL, NULL, NULL);
+ return ret;
+}
+
+
+int32_t
+worm_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset,
+ dict_t *xdata)
+{
+ int ret = -1;
+ int label = -1;
+
+ if (is_readonly_or_worm_enabled (this))
+ goto unwind;
+ if (is_wormfile (this, _gf_false, loc))
+ goto wind;
+ label = state_transition (this, _gf_false, loc, GF_FOP_TRUNCATE,
+ &ret);
+ if (label == 0)
+ goto wind;
+ if (label == 1)
+ goto unwind;
+ if (label == 2)
+ goto out;
+
+unwind:
+ STACK_UNWIND_STRICT (truncate, frame, -1, EROFS,
+ NULL, NULL, NULL);
+ ret = 0;
+ goto out;
+
+wind:
+ STACK_WIND_TAIL (frame,
+ FIRST_CHILD (this),
+ FIRST_CHILD (this)->fops->truncate,
+ loc, offset, xdata);
+ ret = 0;
+out:
+ if (label == 2)
+ STACK_UNWIND_STRICT (truncate, frame, -1, ret,
+ NULL, NULL, NULL);
+ return ret;
+}
+
+
+int32_t
+worm_setattr (call_frame_t *frame, xlator_t *this, loc_t *loc,
+ struct iatt *stbuf, int32_t valid, dict_t *xdata)
+{
+ gf_boolean_t rd_only = _gf_false;
+ worm_reten_state_t reten_state = {0,};
+ struct iatt stpre = {0,};
+ int ret = -1;
+
+ if (is_wormfile (this, _gf_false, loc))
+ goto wind;
+ if (valid & GF_SET_ATTR_MODE) {
+ rd_only = is_write_disabled (stbuf);
+ if (!rd_only)
+ goto wind;
+
+ ret = worm_set_state (this, _gf_false, loc,
+ &reten_state, stbuf);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Error setting worm state");
+ goto out;
+ }
+ } else if (valid & GF_SET_ATTR_ATIME) {
+ ret = worm_get_state (this, _gf_false, loc, &reten_state);
+ if (ret)
+ goto wind;
+ if (reten_state.retain) {
+ ret = syncop_stat (this, loc, &stpre, NULL, NULL);
+ if (ret)
+ goto out;
+ if (reten_state.ret_mode == 0) {
+ if (stbuf->ia_atime < stpre.ia_mtime) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Cannot set atime less than "
+ "the mtime for a WORM-Retained "
+ "file");
+ goto unwind;
+ }
+ } else {
+ if (stbuf->ia_atime < stpre.ia_atime) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Cannot decrease the atime of a"
+ " WORM-Retained file in "
+ "Enterprise mode");
+ goto unwind;
+ }
+ }
+ stbuf->ia_mtime = stpre.ia_mtime;
+ }
+ }
+
+wind:
+ STACK_WIND_TAIL (frame, FIRST_CHILD (this),
+ FIRST_CHILD (this)->fops->setattr,
+ loc, stbuf, valid, xdata);
+ ret = 0;
+ goto out;
+unwind:
+ STACK_UNWIND_STRICT (setattr, frame, -1, EROFS, NULL, NULL, NULL);
+out:
+ return ret;
+}
+
+
+int32_t
+worm_fsetattr (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ struct iatt *stbuf, int32_t valid, dict_t *xdata)
+{
+ gf_boolean_t rd_only = _gf_false;
+ worm_reten_state_t reten_state = {0,};
+ struct iatt stpre = {0,};
+ int ret = -1;
+
+ if (is_wormfile (this, _gf_true, fd))
+ goto wind;
+ if (valid & GF_SET_ATTR_MODE) {
+ rd_only = is_write_disabled (stbuf);
+ if (!rd_only)
+ goto wind;
+
+ ret = worm_set_state (this, _gf_true, fd,
+ &reten_state, stbuf);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Error setting worm state");
+ goto out;
+ }
+ } else if (valid & GF_SET_ATTR_ATIME) {
+ ret = worm_get_state (this, _gf_true, fd, &reten_state);
+ if (ret)
+ goto wind;
+ if (reten_state.retain) {
+ ret = syncop_fstat (this, fd, &stpre, NULL, NULL);
+ if (ret)
+ goto out;
+ if (reten_state.ret_mode == 0) {
+ if (stbuf->ia_atime < stpre.ia_mtime) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Cannot set atime less than "
+ "the mtime for a WORM-Retained "
+ "file");
+ goto unwind;
+ }
+ } else {
+ if (stbuf->ia_atime < stpre.ia_atime) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Cannot decrease the atime of a"
+ " WORM-Retained file in "
+ "Enterprise mode");
+ goto unwind;
+ }
+ }
+ stbuf->ia_mtime = stpre.ia_mtime;
+ }
+ }
+
+wind:
+ STACK_WIND_TAIL (frame, FIRST_CHILD (this),
+ FIRST_CHILD (this)->fops->fsetattr,
+ fd, stbuf, valid, xdata);
+ ret = 0;
+ goto out;
+unwind:
+ STACK_UNWIND_STRICT (fsetattr, frame, -1, EROFS, NULL, NULL, NULL);
+out:
+ return ret;
+}
+
+
+int32_t
+worm_writev (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ struct iovec *vector, int32_t count, off_t offset, uint32_t flags,
+ struct iobref *iobref, dict_t *xdata)
+{
+ worm_reten_state_t reten_state = {0,};
+ int ret = -1;
+
+ if (is_readonly_or_worm_enabled (this))
+ goto unwind;
+ if (is_wormfile (this, _gf_true, fd))
+ goto wind;
+ ret = worm_get_state (this, _gf_true, fd, &reten_state);
+ if (!reten_state.worm)
+ goto wind;
+
+unwind:
+ STACK_UNWIND_STRICT (writev, frame, -1, EROFS, NULL, NULL, NULL);
+ goto out;
+
+wind:
+ STACK_WIND_TAIL (frame,
+ FIRST_CHILD (this),
+ FIRST_CHILD (this)->fops->writev,
+ fd, vector, count, offset, flags,
+ iobref, xdata);
+ gf_log (this->name, GF_LOG_INFO, "WORM writev");
+ ret = 0;
+
+out:
+ return ret;
+}
+
+
+int32_t
+worm_create (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
+ mode_t mode, mode_t umask, fd_t *fd, dict_t *xdata)
+{
+ int ret = -1;
+ read_only_priv_t *priv = NULL;
+ dict_t *dict = NULL;
+
+ STACK_WIND_TAIL (frame, FIRST_CHILD (this),
+ FIRST_CHILD(this)->fops->create, loc, flags,
+ mode, umask, fd, xdata);
+ priv = this->private;
+ GF_ASSERT (priv);
+
+ if (priv->worm_file) {
+ dict = dict_new ();
+ if (!dict) {
+ gf_log (this->name, GF_LOG_ERROR, "Error creating the "
+ "dict");
+ goto out;
+ }
+ GF_VALIDATE_OR_GOTO (this->name, dict, out);
+ ret = dict_set_int8 (dict, "trusted.worm_file", 1);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Error in setting "
+ "the dict");
+ goto out;
+ }
+ ret = syncop_fsetxattr (this, fd, dict, 0, NULL, NULL);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Error setting xattr");
+ goto out;
+ }
+ ret = worm_init_state (this, _gf_true, fd);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Error initializing state");
+ }
+ }
+
+out:
+ if (dict)
+ dict_destroy (dict);
+ return ret;
+}
+
+
int32_t
init (xlator_t *this)
{
- int ret = -1;
+ int ret = -1;
read_only_priv_t *priv = NULL;
if (!this->children || this->children->next) {
@@ -68,11 +429,34 @@ init (xlator_t *this)
"dangling volume. check volfile ");
}
- priv = GF_CALLOC (1, sizeof (*priv), gf_read_only_mt_priv_t);
- if (!priv)
+ this->local_pool = mem_pool_new (read_only_priv_t, 64);
+ if (!this->local_pool) {
+ ret = -1;
+ gf_log (this->name, GF_LOG_ERROR,
+ "failed to create read_only_priv_t's memory pool");
+ goto out;
+ }
+
+ priv = mem_get0 (this->local_pool);
+ if (!priv) {
+ gf_log (this->name, GF_LOG_ERROR, "Error allocating priv");
+ goto out;
+ }
+
+ priv->reten_mode = mem_get0 (this->local_pool);
+ if (!priv->reten_mode) {
+ gf_log (this->name, GF_LOG_ERROR, "Error allocating "
+ "reten_mode");
goto out;
+ }
- GF_OPTION_INIT ("worm", priv->readonly_or_worm_enabled, bool, out);
+ GF_OPTION_INIT ("worm", priv->readonly_or_worm_enabled,
+ bool, out);
+ GF_OPTION_INIT ("worm-file-level", priv->worm_file, bool, out);
+ GF_OPTION_INIT ("default-retention-period", priv->reten_period,
+ uint64, out);
+ GF_OPTION_INIT ("auto-commit-period", priv->com_period, uint64, out);
+ GF_OPTION_INIT ("retention-mode", priv->reten_mode, str, out);
this->private = priv;
ret = 0;
@@ -80,25 +464,33 @@ out:
return ret;
}
+
int
reconfigure (xlator_t *this, dict_t *options)
{
- read_only_priv_t *priv = NULL;
+ read_only_priv_t *priv = NULL;
int ret = -1;
- gf_boolean_t readonly_or_worm_enabled = _gf_false;
priv = this->private;
GF_ASSERT (priv);
- GF_OPTION_RECONF ("worm", readonly_or_worm_enabled, options, bool, out);
-
- priv->readonly_or_worm_enabled = readonly_or_worm_enabled;
+ GF_OPTION_RECONF ("worm", priv->readonly_or_worm_enabled,
+ options, bool, out);
+ GF_OPTION_RECONF ("worm-file-level", priv->worm_file, options, bool,
+ out);
+ GF_OPTION_RECONF ("default-retention-period", priv->reten_period,
+ options, uint64, out);
+ GF_OPTION_RECONF ("retention-mode", priv->reten_mode, options, str,
+ out);
+ GF_OPTION_RECONF ("auto-commit-period", priv->com_period, options,
+ uint64, out);
ret = 0;
out:
gf_log (this->name, GF_LOG_DEBUG, "returning %d", ret);
return ret;
}
+
void
fini (xlator_t *this)
{
@@ -106,21 +498,31 @@ fini (xlator_t *this)
priv = this->private;
if (!priv)
- return;
-
+ goto out;
+ if (priv->reten_mode != NULL) {
+ mem_put (priv->reten_mode);
+ priv->reten_mode = NULL;
+ }
+ mem_put (priv);
this->private = NULL;
- GF_FREE (priv);
-
+ mem_pool_destroy (this->local_pool);
+out:
return;
}
+
struct xlator_fops fops = {
.open = worm_open,
+ .writev = worm_writev,
+ .setattr = worm_setattr,
+ .fsetattr = worm_fsetattr,
+ .rename = worm_rename,
+ .link = worm_link,
+ .unlink = worm_unlink,
+ .truncate = worm_truncate,
+ .create = worm_create,
- .unlink = ro_unlink,
.rmdir = ro_rmdir,
- .rename = ro_rename,
- .truncate = ro_truncate,
.removexattr = ro_removexattr,
.fsyncdir = ro_fsyncdir,
.xattrop = ro_xattrop,
@@ -131,8 +533,10 @@ struct xlator_fops fops = {
.lk = ro_lk,
};
+
struct xlator_cbks cbks;
+
struct volume_options options[] = {
{ .key = {"worm"},
.type = GF_OPTION_TYPE_BOOL,
@@ -140,5 +544,26 @@ struct volume_options options[] = {
.description = "When \"on\", makes a volume get write once read many "
" feature. It is turned \"off\" by default."
},
+ { .key = {"worm-file-level"},
+ .type = GF_OPTION_TYPE_BOOL,
+ .default_value = "off",
+ .description = "When \"on\", activates the file level worm. "
+ "It is turned \"off\" by default."
+ },
+ { .key = {"default-retention-period"},
+ .type = GF_OPTION_TYPE_TIME,
+ .default_value = "120",
+ .description = "The default retention period for the files."
+ },
+ { .key = {"retention-mode"},
+ .type = GF_OPTION_TYPE_STR,
+ .default_value = "relax",
+ .description = "The mode of retention (relax/enterprise). "
+ "It is relax by default."
+ },
+ { .key = {"auto-commit-period"},
+ .type = GF_OPTION_TYPE_TIME,
+ .default_value = "180",
+ .description = "Auto commit period for the files."
+ },
};
-