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!"
static int tsmsm_connect(struct vfs_handle_struct *handle,
const char *service,
const char *user) {
+ const struct loadparm_substitution *lp_sub =
+ loadparm_s3_global_substitution();
struct tsmsm_struct *tsmd;
const char *fres;
const char *tsmname;
return ret;
}
- tsmd = TALLOC_ZERO_P(handle, struct tsmsm_struct);
+ tsmd = talloc_zero(handle, struct tsmsm_struct);
if (!tsmd) {
SMB_VFS_NEXT_DISCONNECT(handle);
DEBUG(0,("tsmsm_connect: out of memory!\n"));
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_talloc_string(SNUM(handle->conn), "tsmsm",
- "dmapi value", NULL);
+ 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 */
}
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;
bool offline;
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_ex_blocks >=
+ 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,
* 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();
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)
{
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 * (off_t)sbuf.st_ex_blocks >=
+ 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->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_offline = tsmsm_aio_force(handle, fsp);
/* 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);
}
static ssize_t tsmsm_pwrite(struct vfs_handle_struct *handle, struct files_struct *fsp,
- const 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);
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:hsm script' configured\n"));
- return 0;
+ 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 struct vfs_fn_pointers tsmsm_fns = {
.connect_fn = tsmsm_connect,
- .fs_capabilities = tsmsm_fs_capabilities,
- .aio_force = tsmsm_aio_force,
- .aio_return_fn = tsmsm_aio_return,
- .pread = tsmsm_pread,
- .pwrite = tsmsm_pwrite,
- .sendfile = tsmsm_sendfile,
- .is_offline = tsmsm_is_offline,
- .set_offline = tsmsm_set_offline,
+ .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", &tsmsm_fns);
git.samba.org / samba.git / blobdiff