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Diffstat (limited to 'source3/modules/vfs_tsmsm.c')
-rw-r--r--source3/modules/vfs_tsmsm.c171
1 files changed, 145 insertions, 26 deletions
diff --git a/source3/modules/vfs_tsmsm.c b/source3/modules/vfs_tsmsm.c
index d53d291832..e4bc7eb454 100644
--- a/source3/modules/vfs_tsmsm.c
+++ b/source3/modules/vfs_tsmsm.c
@@ -27,7 +27,7 @@
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
@@ -40,6 +40,7 @@
#include "includes.h"
#include "smbd/smbd.h"
+#include "lib/util/tevent_unix.h"
#ifndef USE_DMAPI
#error "This module requires DMAPI support!"
@@ -97,7 +98,7 @@ static int tsmsm_connect(struct vfs_handle_struct *handle,
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"));
@@ -114,16 +115,19 @@ static int tsmsm_connect(struct vfs_handle_struct *handle,
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_talloc_string(
+ tsmd, 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_talloc_string(
+ tsmd, 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_talloc_string(
+ tsmd, 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 */
@@ -282,23 +286,135 @@ static bool tsmsm_aio_force(struct vfs_handle_struct *handle, struct files_struc
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;
+ int err;
+ bool was_offline;
+};
+
+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->err);
+ TALLOC_FREE(subreq);
+ tevent_req_done(req);
+}
+
+static ssize_t tsmsm_pread_recv(struct tevent_req *req, int *err)
+{
+ struct tsmsm_pread_state *state = tevent_req_data(
+ req, struct tsmsm_pread_state);
+
+ if (tevent_req_is_unix_error(req, err)) {
+ 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);
}
+ *err = state->err;
+ return state->ret;
+}
- return result;
+struct tsmsm_pwrite_state {
+ struct files_struct *fsp;
+ ssize_t ret;
+ int err;
+ bool was_offline;
+};
+
+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->err);
+ TALLOC_FREE(subreq);
+ tevent_req_done(req);
+}
+
+static ssize_t tsmsm_pwrite_recv(struct tevent_req *req, int *err)
+{
+ struct tsmsm_pwrite_state *state = tevent_req_data(
+ req, struct tsmsm_pwrite_state);
+
+ if (tevent_req_is_unix_error(req, err)) {
+ 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);
+ }
+ *err = state->err;
+ 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);
@@ -314,7 +430,7 @@ static ssize_t tsmsm_sendfile(vfs_handle_struct *handle, int tofd, files_struct
/* 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);
@@ -332,7 +448,7 @@ static ssize_t tsmsm_pread(struct vfs_handle_struct *handle, struct files_struct
}
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);
@@ -392,14 +508,17 @@ 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,
+ .is_offline_fn = tsmsm_is_offline,
+ .set_offline_fn = tsmsm_set_offline,
};
NTSTATUS vfs_tsmsm_init(void);
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-27 15:54:38 +0000