where <operation> is currently 'offline' to set offline status of the <filepath>
tsmsm: online ratio = ratio to check reported size against actual file size (0.5 by default)
- tsmsm: attribute name = name of DMAPI attribute that is present when a file is offline.
+ tsmsm: dmapi attribute = name of DMAPI attribute that is present when a file is offline.
Default is "IBMobj" (which is what GPFS uses)
The TSMSM VFS module tries to avoid calling expensive DMAPI calls with some heuristics
*/
#include "includes.h"
+#include "smbd/smbd.h"
+#include "lib/util/tevent_unix.h"
#ifndef USE_DMAPI
#error "This module requires DMAPI support!"
float online_ratio;
char *hsmscript;
const char *attrib_name;
+ const char *attrib_value;
};
static void tsmsm_free_data(void **pptr) {
static int tsmsm_connect(struct vfs_handle_struct *handle,
const char *service,
const char *user) {
- struct tsmsm_struct *tsmd = TALLOC_ZERO_P(handle, struct tsmsm_struct);
+ const struct loadparm_substitution *lp_sub =
+ loadparm_s3_global_substitution();
+ struct tsmsm_struct *tsmd;
const char *fres;
const char *tsmname;
-
+ int ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
+
+ if (ret < 0) {
+ return ret;
+ }
+
+ tsmd = talloc_zero(handle, struct tsmsm_struct);
if (!tsmd) {
+ SMB_VFS_NEXT_DISCONNECT(handle);
DEBUG(0,("tsmsm_connect: out of memory!\n"));
return -1;
}
if (!dmapi_have_session()) {
+ SMB_VFS_NEXT_DISCONNECT(handle);
DEBUG(0,("tsmsm_connect: no DMAPI session for Samba is available!\n"));
TALLOC_FREE(tsmd);
return -1;
tsmname = (handle->param ? handle->param : "tsmsm");
/* Get 'hsm script' and 'dmapi attribute' parameters to tsmd context */
- tsmd->hsmscript = lp_parm_talloc_string(SNUM(handle->conn), tsmname,
- "hsm script", NULL);
+ tsmd->hsmscript = lp_parm_substituted_string(
+ tsmd, lp_sub, SNUM(handle->conn), tsmname,
+ "hsm script", NULL);
talloc_steal(tsmd, tsmd->hsmscript);
- tsmd->attrib_name = lp_parm_talloc_string(SNUM(handle->conn), tsmname,
- "dmapi attribute", DM_ATTRIB_OBJECT);
+ tsmd->attrib_name = lp_parm_substituted_string(
+ tsmd, lp_sub, SNUM(handle->conn), tsmname,
+ "dmapi attribute", DM_ATTRIB_OBJECT);
talloc_steal(tsmd, tsmd->attrib_name);
-
+
+ tsmd->attrib_value = lp_parm_substituted_string(
+ tsmd, lp_sub, SNUM(handle->conn), tsmname,
+ "dmapi value", NULL);
+ talloc_steal(tsmd, tsmd->attrib_value);
+
/* retrieve 'online ratio'. In case of error default to FILE_IS_ONLINE_RATIO */
fres = lp_parm_const_string(SNUM(handle->conn), tsmname,
"online ratio", NULL);
/* Store the private data. */
SMB_VFS_HANDLE_SET_DATA(handle, tsmd, tsmsm_free_data,
struct tsmsm_struct, return -1);
- return SMB_VFS_NEXT_CONNECT(handle, service, user);
+ return 0;
}
static bool tsmsm_is_offline(struct vfs_handle_struct *handle,
- const char *path,
- SMB_STRUCT_STAT *stbuf) {
+ const struct smb_filename *fname,
+ SMB_STRUCT_STAT *stbuf)
+{
struct tsmsm_struct *tsmd = (struct tsmsm_struct *) handle->data;
const dm_sessid_t *dmsession_id;
void *dmhandle = NULL;
dm_attrname_t dmname;
int ret, lerrno;
bool offline;
- char buf[1];
+ char *buf = NULL;
+ size_t buflen;
+ NTSTATUS status;
+ char *path;
+
+ status = get_full_smb_filename(talloc_tos(), fname, &path);
+ if (!NT_STATUS_IS_OK(status)) {
+ errno = map_errno_from_nt_status(status);
+ return false;
+ }
/* if the file has more than FILE_IS_ONLINE_RATIO of blocks available,
then assume it is not offline (it may not be 100%, as it could be sparse) */
- if (512 * (off_t)stbuf->st_blocks >= stbuf->st_size * tsmd->online_ratio) {
- DEBUG(10,("%s not offline: st_blocks=%ld st_size=%ld online_ratio=%.2f\n",
- path, stbuf->st_blocks, stbuf->st_size, tsmd->online_ratio));
+ if (512 * stbuf->st_ex_blocks >=
+ stbuf->st_ex_size * tsmd->online_ratio) {
+ DEBUG(10,("%s not offline: st_blocks=%llu st_size=%llu "
+ "online_ratio=%.2f\n", path,
+ (unsigned long long)stbuf->st_ex_blocks,
+ (unsigned long long)stbuf->st_ex_size, tsmd->online_ratio));
return false;
}
* become_root() is just as good anyway (tridge)
*/
- /* Also, AIX has DMAPI but no POSIX capablities support. In this case,
+ /* Also, AIX has DMAPI but no POSIX capabilities support. In this case,
* we need to be root to do DMAPI manipulations.
*/
become_root();
memset(&dmname, 0, sizeof(dmname));
strlcpy((char *)&dmname.an_chars[0], tsmd->attrib_name, sizeof(dmname.an_chars));
- lerrno = 0;
+ if (tsmd->attrib_value != NULL) {
+ buflen = strlen(tsmd->attrib_value);
+ } else {
+ buflen = 1;
+ }
+ buf = talloc_zero_size(tsmd, buflen);
+ if (buf == NULL) {
+ DEBUG(0,("out of memory in tsmsm_is_offline -- assuming online (%s)\n", path));
+ errno = ENOMEM;
+ offline = false;
+ goto done;
+ }
do {
+ lerrno = 0;
+
ret = dm_get_dmattr(*dmsession_id, dmhandle, dmhandle_len,
- DM_NO_TOKEN, &dmname, sizeof(buf), buf, &rlen);
+ DM_NO_TOKEN, &dmname, buflen, buf, &rlen);
if (ret == -1 && errno == EINVAL) {
DEBUG(0, ("Stale DMAPI session, re-creating it.\n"));
lerrno = EINVAL;
}
} while (ret == -1 && lerrno == EINVAL);
- /* its offline if the specified DMAPI attribute exists */
- offline = (ret == 0 || (ret == -1 && errno == E2BIG));
+ /* check if we need a specific attribute value */
+ if (tsmd->attrib_value != NULL) {
+ offline = (ret == 0 && rlen == buflen &&
+ memcmp(buf, tsmd->attrib_value, buflen) == 0);
+ } else {
+ /* its offline if the specified DMAPI attribute exists */
+ offline = (ret == 0 || (ret == -1 && errno == E2BIG));
+ }
DEBUG(10,("dm_get_dmattr %s ret=%d (%s)\n", path, ret, strerror(errno)));
dm_handle_free(dmhandle, dmhandle_len);
done:
+ talloc_free(buf);
unbecome_root();
return offline;
}
+static NTSTATUS tsmsm_fget_dos_attributes(struct vfs_handle_struct *handle,
+ files_struct *fsp,
+ uint32_t *dosmode)
+{
+ bool offline;
+
+ offline = tsmsm_is_offline(handle, fsp->fsp_name, &fsp->fsp_name->st);
+ if (offline) {
+ *dosmode |= FILE_ATTRIBUTE_OFFLINE;
+ }
+
+ return SMB_VFS_NEXT_FGET_DOS_ATTRIBUTES(handle, fsp, dosmode);
+}
static bool tsmsm_aio_force(struct vfs_handle_struct *handle, struct files_struct *fsp)
{
if the file might be offline
*/
if(SMB_VFS_FSTAT(fsp, &sbuf) == 0) {
- DEBUG(10,("tsmsm_aio_force st_blocks=%ld st_size=%ld online_ratio=%.2f\n",
- sbuf.st_blocks, sbuf.st_size, tsmd->online_ratio));
- return !(512 * (off_t)sbuf.st_blocks >= sbuf.st_size * tsmd->online_ratio);
+ DEBUG(10,("tsmsm_aio_force st_blocks=%llu st_size=%llu "
+ "online_ratio=%.2f\n", (unsigned long long)sbuf.st_ex_blocks,
+ (unsigned long long)sbuf.st_ex_size, tsmd->online_ratio));
+ return !(512 * sbuf.st_ex_blocks >=
+ sbuf.st_ex_size * tsmd->online_ratio);
}
return false;
}
-static ssize_t tsmsm_aio_return(struct vfs_handle_struct *handle, struct files_struct *fsp,
- SMB_STRUCT_AIOCB *aiocb)
+struct tsmsm_pread_state {
+ struct files_struct *fsp;
+ ssize_t ret;
+ bool was_offline;
+ struct vfs_aio_state vfs_aio_state;
+};
+
+static void tsmsm_pread_done(struct tevent_req *subreq);
+
+static struct tevent_req *tsmsm_pread_send(struct vfs_handle_struct *handle,
+ TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct files_struct *fsp,
+ void *data, size_t n, off_t offset)
{
- ssize_t result;
+ struct tevent_req *req, *subreq;
+ struct tsmsm_pread_state *state;
- result = SMB_VFS_NEXT_AIO_RETURN(handle, fsp, aiocb);
- if(result >= 0) {
- notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
+ req = tevent_req_create(mem_ctx, &state, struct tsmsm_pread_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ state->fsp = fsp;
+ state->was_offline = tsmsm_aio_force(handle, fsp);
+ subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
+ n, offset);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, tsmsm_pread_done, req);
+ return req;
+}
+
+static void tsmsm_pread_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct tsmsm_pread_state *state = tevent_req_data(
+ req, struct tsmsm_pread_state);
+
+ state->ret = SMB_VFS_PREAD_RECV(subreq, &state->vfs_aio_state);
+ TALLOC_FREE(subreq);
+ tevent_req_done(req);
+}
+
+static ssize_t tsmsm_pread_recv(struct tevent_req *req,
+ struct vfs_aio_state *vfs_aio_state)
+{
+ struct tsmsm_pread_state *state = tevent_req_data(
+ req, struct tsmsm_pread_state);
+
+ if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
+ return -1;
+ }
+ if (state->ret >= 0 && state->was_offline) {
+ struct files_struct *fsp = state->fsp;
+ notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
FILE_NOTIFY_CHANGE_ATTRIBUTES,
- fsp->fsp_name);
+ fsp->fsp_name->base_name);
}
+ *vfs_aio_state = state->vfs_aio_state;
+ return state->ret;
+}
- return result;
+struct tsmsm_pwrite_state {
+ struct files_struct *fsp;
+ ssize_t ret;
+ bool was_offline;
+ struct vfs_aio_state vfs_aio_state;
+};
+
+static void tsmsm_pwrite_done(struct tevent_req *subreq);
+
+static struct tevent_req *tsmsm_pwrite_send(struct vfs_handle_struct *handle,
+ TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct files_struct *fsp,
+ const void *data, size_t n,
+ off_t offset)
+{
+ struct tevent_req *req, *subreq;
+ struct tsmsm_pwrite_state *state;
+
+ req = tevent_req_create(mem_ctx, &state, struct tsmsm_pwrite_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ state->fsp = fsp;
+ state->was_offline = tsmsm_aio_force(handle, fsp);
+ subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
+ n, offset);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, tsmsm_pwrite_done, req);
+ return req;
+}
+
+static void tsmsm_pwrite_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct tsmsm_pwrite_state *state = tevent_req_data(
+ req, struct tsmsm_pwrite_state);
+
+ state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->vfs_aio_state);
+ TALLOC_FREE(subreq);
+ tevent_req_done(req);
+}
+
+static ssize_t tsmsm_pwrite_recv(struct tevent_req *req,
+ struct vfs_aio_state *vfs_aio_state)
+{
+ struct tsmsm_pwrite_state *state = tevent_req_data(
+ req, struct tsmsm_pwrite_state);
+
+ if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
+ return -1;
+ }
+ if (state->ret >= 0 && state->was_offline) {
+ struct files_struct *fsp = state->fsp;
+ notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
+ FILE_NOTIFY_CHANGE_ATTRIBUTES,
+ fsp->fsp_name->base_name);
+ }
+ *vfs_aio_state = state->vfs_aio_state;
+ return state->ret;
}
static ssize_t tsmsm_sendfile(vfs_handle_struct *handle, int tofd, files_struct *fsp, const DATA_BLOB *hdr,
- SMB_OFF_T offset, size_t n)
+ off_t offset, size_t n)
{
- bool file_online = tsmsm_aio_force(handle, fsp);
+ bool file_offline = tsmsm_aio_force(handle, fsp);
- if(!file_online)
- return ENOSYS;
+ if (file_offline) {
+ DEBUG(10,("tsmsm_sendfile on offline file - rejecting\n"));
+ errno = ENOSYS;
+ return -1;
+ }
return SMB_VFS_NEXT_SENDFILE(handle, tofd, fsp, hdr, offset, n);
}
/* We do overload pread to allow notification when file becomes online after offline status */
/* We don't intercept SMB_VFS_READ here because all file I/O now goes through SMB_VFS_PREAD instead */
static ssize_t tsmsm_pread(struct vfs_handle_struct *handle, struct files_struct *fsp,
- void *data, size_t n, SMB_OFF_T offset) {
+ void *data, size_t n, off_t offset) {
ssize_t result;
bool notify_online = tsmsm_aio_force(handle, fsp);
*/
notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
FILE_NOTIFY_CHANGE_ATTRIBUTES,
- fsp->fsp_name);
+ fsp->fsp_name->base_name);
}
return result;
}
static ssize_t tsmsm_pwrite(struct vfs_handle_struct *handle, struct files_struct *fsp,
- void *data, size_t n, SMB_OFF_T offset) {
+ const void *data, size_t n, off_t offset) {
ssize_t result;
bool notify_online = tsmsm_aio_force(handle, fsp);
*/
notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
FILE_NOTIFY_CHANGE_ATTRIBUTES,
- fsp->fsp_name);
+ fsp->fsp_name->base_name);
}
return result;
}
-static int tsmsm_set_offline(struct vfs_handle_struct *handle,
- const char *path) {
+static NTSTATUS tsmsm_set_offline(struct vfs_handle_struct *handle,
+ const struct smb_filename *fname)
+{
struct tsmsm_struct *tsmd = (struct tsmsm_struct *) handle->data;
int result = 0;
char *command;
+ NTSTATUS status;
+ char *path;
if (tsmd->hsmscript == NULL) {
/* no script enabled */
- DEBUG(1, ("tsmsm_set_offline: No tsmsm:hsmscript configured\n"));
- return 0;
+ DEBUG(1, ("tsmsm_set_offline: No 'tsmsm:hsm script' configured\n"));
+ return NT_STATUS_OK;
}
+ status = get_full_smb_filename(talloc_tos(), fname, &path);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
/* Now, call the script */
command = talloc_asprintf(tsmd, "%s offline \"%s\"", tsmd->hsmscript, path);
if(!command) {
- DEBUG(1, ("tsmsm_set_offline: can't allocate memory to run hsm script"));
- return -1;
+ DEBUG(1, ("tsmsm_set_offline: can't allocate memory to run hsm script\n"));
+ return NT_STATUS_NO_MEMORY;
}
DEBUG(10, ("tsmsm_set_offline: Running [%s]\n", command));
- if((result = smbrun(command, NULL)) != 0) {
+ result = smbrun(command, NULL, NULL);
+ if(result != 0) {
DEBUG(1,("tsmsm_set_offline: Running [%s] returned %d\n", command, result));
+ TALLOC_FREE(command);
+ return NT_STATUS_INTERNAL_ERROR;
}
TALLOC_FREE(command);
- return result;
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS tsmsm_fset_dos_attributes(struct vfs_handle_struct *handle,
+ struct files_struct *fsp,
+ uint32_t dosmode)
+{
+ NTSTATUS status;
+ uint32_t old_dosmode;
+
+ old_dosmode = fdos_mode(fsp);
+
+ status = SMB_VFS_NEXT_FSET_DOS_ATTRIBUTES(handle, fsp, dosmode);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ if (!(old_dosmode & FILE_ATTRIBUTE_OFFLINE) &&
+ (dosmode & FILE_ATTRIBUTE_OFFLINE))
+ {
+ return NT_STATUS_OK;
+ }
+
+ return tsmsm_set_offline(handle, fsp->fsp_name);
}
-static uint32_t tsmsm_fs_capabilities(struct vfs_handle_struct *handle)
+static uint32_t tsmsm_fs_capabilities(struct vfs_handle_struct *handle,
+ enum timestamp_set_resolution *p_ts_res)
{
- return SMB_VFS_NEXT_FS_CAPABILITIES(handle) | FILE_SUPPORTS_REMOTE_STORAGE | FILE_SUPPORTS_REPARSE_POINTS;
+ return SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res) | FILE_SUPPORTS_REMOTE_STORAGE | FILE_SUPPORTS_REPARSE_POINTS;
}
-static vfs_op_tuple vfs_tsmsm_ops[] = {
-
- /* Disk operations */
-
- {SMB_VFS_OP(tsmsm_connect), SMB_VFS_OP_CONNECT,
- SMB_VFS_LAYER_TRANSPARENT},
- {SMB_VFS_OP(tsmsm_fs_capabilities), SMB_VFS_OP_FS_CAPABILITIES,
- SMB_VFS_LAYER_TRANSPARENT},
- {SMB_VFS_OP(tsmsm_aio_force), SMB_VFS_OP_AIO_FORCE,
- SMB_VFS_LAYER_TRANSPARENT},
- {SMB_VFS_OP(tsmsm_aio_return), SMB_VFS_OP_AIO_RETURN,
- SMB_VFS_LAYER_TRANSPARENT},
- {SMB_VFS_OP(tsmsm_pread), SMB_VFS_OP_PREAD,
- SMB_VFS_LAYER_TRANSPARENT},
- {SMB_VFS_OP(tsmsm_pwrite), SMB_VFS_OP_PWRITE,
- SMB_VFS_LAYER_TRANSPARENT},
- {SMB_VFS_OP(tsmsm_sendfile), SMB_VFS_OP_SENDFILE,
- SMB_VFS_LAYER_TRANSPARENT},
- {SMB_VFS_OP(tsmsm_is_offline), SMB_VFS_OP_IS_OFFLINE,
- SMB_VFS_LAYER_OPAQUE},
- {SMB_VFS_OP(tsmsm_set_offline), SMB_VFS_OP_SET_OFFLINE,
- SMB_VFS_LAYER_OPAQUE},
-
- /* Finish VFS operations definition */
-
- {SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP,
- SMB_VFS_LAYER_NOOP}
+static struct vfs_fn_pointers tsmsm_fns = {
+ .connect_fn = tsmsm_connect,
+ .fs_capabilities_fn = tsmsm_fs_capabilities,
+ .aio_force_fn = tsmsm_aio_force,
+ .pread_fn = tsmsm_pread,
+ .pread_send_fn = tsmsm_pread_send,
+ .pread_recv_fn = tsmsm_pread_recv,
+ .pwrite_fn = tsmsm_pwrite,
+ .pwrite_send_fn = tsmsm_pwrite_send,
+ .pwrite_recv_fn = tsmsm_pwrite_recv,
+ .sendfile_fn = tsmsm_sendfile,
+ .fset_dos_attributes_fn = tsmsm_fset_dos_attributes,
+ .get_dos_attributes_send_fn = vfs_not_implemented_get_dos_attributes_send,
+ .get_dos_attributes_recv_fn = vfs_not_implemented_get_dos_attributes_recv,
+ .fget_dos_attributes_fn = tsmsm_fget_dos_attributes,
};
-NTSTATUS vfs_tsmsm_init(void);
-NTSTATUS vfs_tsmsm_init(void)
+static_decl_vfs;
+NTSTATUS vfs_tsmsm_init(TALLOC_CTX *ctx)
{
return smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
- "tsmsm", vfs_tsmsm_ops);
+ "tsmsm", &tsmsm_fns);
}
git.samba.org / samba.git / blobdiff