static struct share_mode_entry *find_share_mode_entry(struct share_mode_data *d,
struct share_mode_entry *entry)
{
int i;
for (i=0; i<d->num_share_modes; i++) {
struct share_mode_entry *e = &d->share_modes[i];
if (is_valid_share_mode_entry(entry) &&
is_valid_share_mode_entry(e) &&
share_modes_identical(e, entry)) {
return e;
}
}
return NULL;
}
static void print_share_mode(const struct share_mode_entry *e,
const char *sharepath,
const char *fname,
void *dummy)
{
char *utf8_fname;
int deny_mode;
if (!is_valid_share_mode_entry(e)) {
return;
}
deny_mode = map_share_mode_to_deny_mode(e->share_access,
e->private_options);
printf("<tr><td>%s</td>",_(mapPid2Machine(e->pid)));
printf("<td>%u</td>",(unsigned int)e->uid);
printf("<td>");
switch ((deny_mode>>4)&0xF) {
case DENY_NONE: printf("DENY_NONE"); break;
case DENY_ALL: printf("DENY_ALL "); break;
case DENY_DOS: printf("DENY_DOS "); break;
case DENY_FCB: printf("DENY_FCB "); break;
case DENY_READ: printf("DENY_READ "); break;
case DENY_WRITE:printf("DENY_WRITE "); break;
}
printf("</td>");
printf("<td>");
if (e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA)) {
printf("%s", _("RDWR "));
} else if (e->access_mask & FILE_WRITE_DATA) {
printf("%s", _("WRONLY "));
} else {
printf("%s", _("RDONLY "));
}
printf("</td>");
printf("<td>");
if((e->op_type &
(EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
(EXCLUSIVE_OPLOCK|BATCH_OPLOCK))
printf("EXCLUSIVE+BATCH ");
else if (e->op_type & EXCLUSIVE_OPLOCK)
printf("EXCLUSIVE ");
else if (e->op_type & BATCH_OPLOCK)
printf("BATCH ");
else if (e->op_type & LEVEL_II_OPLOCK)
printf("LEVEL_II ");
else
printf("NONE ");
printf("</td>");
push_utf8_allocate(&utf8_fname, fname);
printf("<td>%s</td><td>%s</td></tr>\n",
utf8_fname,tstring(talloc_tos(),e->time.tv_sec));
SAFE_FREE(utf8_fname);
}
static void print_share_mode(const struct share_mode_entry *e,
const char *sharepath,
const char *fname,
void *dummy)
{
static int count;
if (!is_valid_share_mode_entry(e)) {
return;
}
if (!process_exists(e->pid)) {
return;
}
if (count==0) {
d_printf("Locked files:\n");
d_printf("Pid Uid DenyMode Access R/W Oplock SharePath Name Time\n");
d_printf("--------------------------------------------------------------------------------------------------\n");
}
count++;
if (Ucrit_checkPid(e->pid)) {
d_printf("%-11s ",procid_str_static(&e->pid));
d_printf("%-9u ", (unsigned int)e->uid);
switch (map_share_mode_to_deny_mode(e->share_access,
e->private_options)) {
case DENY_NONE: d_printf("DENY_NONE "); break;
case DENY_ALL: d_printf("DENY_ALL "); break;
case DENY_DOS: d_printf("DENY_DOS "); break;
case DENY_READ: d_printf("DENY_READ "); break;
case DENY_WRITE:printf("DENY_WRITE "); break;
case DENY_FCB: d_printf("DENY_FCB "); break;
default: {
d_printf("unknown-please report ! "
"e->share_access = 0x%x, "
"e->private_options = 0x%x\n",
(unsigned int)e->share_access,
(unsigned int)e->private_options );
break;
}
}
d_printf("0x%-8x ",(unsigned int)e->access_mask);
if ((e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA))==
(FILE_READ_DATA|FILE_WRITE_DATA)) {
d_printf("RDWR ");
} else if (e->access_mask & FILE_WRITE_DATA) {
d_printf("WRONLY ");
} else {
d_printf("RDONLY ");
}
if((e->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
(EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) {
d_printf("EXCLUSIVE+BATCH ");
} else if (e->op_type & EXCLUSIVE_OPLOCK) {
d_printf("EXCLUSIVE ");
} else if (e->op_type & BATCH_OPLOCK) {
d_printf("BATCH ");
} else if (e->op_type & LEVEL_II_OPLOCK) {
d_printf("LEVEL_II ");
} else {
d_printf("NONE ");
}
d_printf(" %s %s %s",sharepath, fname, time_to_asc((time_t)e->time.tv_sec));
}
}
static NTSTATUS close_remove_share_mode(files_struct *fsp,
enum file_close_type close_type)
{
connection_struct *conn = fsp->conn;
struct server_id self = messaging_server_id(conn->sconn->msg_ctx);
bool delete_file = false;
bool changed_user = false;
struct share_mode_lock *lck = NULL;
NTSTATUS status = NT_STATUS_OK;
NTSTATUS tmp_status;
struct file_id id;
const struct security_unix_token *del_token = NULL;
const struct security_token *del_nt_token = NULL;
bool got_tokens = false;
bool normal_close;
int ret_flock, retries = 1;
/* Ensure any pending write time updates are done. */
if (fsp->update_write_time_event) {
update_write_time_handler(fsp->conn->sconn->ev_ctx,
fsp->update_write_time_event,
timeval_current(),
(void *)fsp);
}
/*
* Lock the share entries, and determine if we should delete
* on close. If so delete whilst the lock is still in effect.
* This prevents race conditions with the file being created. JRA.
*/
lck = get_existing_share_mode_lock(talloc_tos(), fsp->file_id);
if (lck == NULL) {
DEBUG(0, ("close_remove_share_mode: Could not get share mode "
"lock for file %s\n", fsp_str_dbg(fsp)));
return NT_STATUS_INVALID_PARAMETER;
}
if (fsp->write_time_forced) {
DEBUG(10,("close_remove_share_mode: write time forced "
"for file %s\n",
fsp_str_dbg(fsp)));
set_close_write_time(fsp, lck->data->changed_write_time);
} else if (fsp->update_write_time_on_close) {
/* Someone had a pending write. */
if (null_timespec(fsp->close_write_time)) {
DEBUG(10,("close_remove_share_mode: update to current time "
"for file %s\n",
fsp_str_dbg(fsp)));
/* Update to current time due to "normal" write. */
set_close_write_time(fsp, timespec_current());
} else {
DEBUG(10,("close_remove_share_mode: write time pending "
"for file %s\n",
fsp_str_dbg(fsp)));
/* Update to time set on close call. */
set_close_write_time(fsp, fsp->close_write_time);
}
}
if (fsp->initial_delete_on_close &&
!is_delete_on_close_set(lck, fsp->name_hash)) {
bool became_user = False;
/* Initial delete on close was set and no one else
* wrote a real delete on close. */
if (get_current_vuid(conn) != fsp->vuid) {
become_user(conn, fsp->vuid);
became_user = True;
}
fsp->delete_on_close = true;
set_delete_on_close_lck(fsp, lck,
get_current_nttok(conn),
get_current_utok(conn));
if (became_user) {
unbecome_user();
}
}
delete_file = is_delete_on_close_set(lck, fsp->name_hash);
if (delete_file) {
int i;
/* See if others still have the file open via this pathname.
If this is the case, then don't delete. If all opens are
POSIX delete now. */
for (i=0; i<lck->data->num_share_modes; i++) {
struct share_mode_entry *e = &lck->data->share_modes[i];
if (!is_valid_share_mode_entry(e)) {
continue;
}
if (e->name_hash != fsp->name_hash) {
continue;
}
if ((fsp->posix_flags & FSP_POSIX_FLAGS_OPEN)
&& (e->flags & SHARE_MODE_FLAG_POSIX_OPEN)) {
continue;
}
if (serverid_equal(&self, &e->pid) &&
(e->share_file_id == fsp->fh->gen_id)) {
continue;
}
if (share_mode_stale_pid(lck->data, i)) {
continue;
}
delete_file = False;
break;
}
}
/*
* NT can set delete_on_close of the last open
* reference to a file.
*/
normal_close = (close_type == NORMAL_CLOSE || close_type == SHUTDOWN_CLOSE);
if (!normal_close || !delete_file) {
status = NT_STATUS_OK;
goto done;
}
/*
* Ok, we have to delete the file
*/
DEBUG(5,("close_remove_share_mode: file %s. Delete on close was set "
"- deleting file.\n", fsp_str_dbg(fsp)));
/*
* Don't try to update the write time when we delete the file
*/
fsp->update_write_time_on_close = false;
got_tokens = get_delete_on_close_token(lck, fsp->name_hash,
&del_nt_token, &del_token);
SMB_ASSERT(got_tokens);
if (!unix_token_equal(del_token, get_current_utok(conn))) {
/* Become the user who requested the delete. */
DEBUG(5,("close_remove_share_mode: file %s. "
"Change user to uid %u\n",
fsp_str_dbg(fsp),
(unsigned int)del_token->uid));
if (!push_sec_ctx()) {
smb_panic("close_remove_share_mode: file %s. failed to push "
"sec_ctx.\n");
}
set_sec_ctx(del_token->uid,
del_token->gid,
del_token->ngroups,
del_token->groups,
del_nt_token);
changed_user = true;
}
/* We can only delete the file if the name we have is still valid and
hasn't been renamed. */
tmp_status = vfs_stat_fsp(fsp);
if (!NT_STATUS_IS_OK(tmp_status)) {
DEBUG(5,("close_remove_share_mode: file %s. Delete on close "
"was set and stat failed with error %s\n",
fsp_str_dbg(fsp), nt_errstr(tmp_status)));
/*
* Don't save the errno here, we ignore this error
*/
goto done;
}
id = vfs_file_id_from_sbuf(conn, &fsp->fsp_name->st);
if (!file_id_equal(&fsp->file_id, &id)) {
DEBUG(5,("close_remove_share_mode: file %s. Delete on close "
"was set and dev and/or inode does not match\n",
fsp_str_dbg(fsp)));
DEBUG(5,("close_remove_share_mode: file %s. stored file_id %s, "
"stat file_id %s\n",
fsp_str_dbg(fsp),
file_id_string_tos(&fsp->file_id),
file_id_string_tos(&id)));
/*
* Don't save the errno here, we ignore this error
*/
goto done;
}
if ((conn->fs_capabilities & FILE_NAMED_STREAMS)
&& !is_ntfs_stream_smb_fname(fsp->fsp_name)) {
status = delete_all_streams(conn, fsp->fsp_name->base_name);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(5, ("delete_all_streams failed: %s\n",
nt_errstr(status)));
goto done;
}
}
retry_delete:
/* temporary files with delete on close set will not be deleted on a
* cifs share using a netapp backend since they are opened with
* read + write access mask.
* close the file to allow the delete.
*/
if (fsp->can_write && !S_ISDIR(fsp->fsp_name->st.st_ex_mode) &&
fsp->fh->ref_count == 1 && retries) {
status = fd_close(fsp);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(3, ("close_remove_share_mode: Error %s closing %s\n",
nt_errstr(status),
smb_fname_str_dbg(fsp->fsp_name)));
goto skip_retry;
}
if (SMB_VFS_UNLINK(conn, fsp->fsp_name) != 0) {
/*
* This call can potentially fail as another smbd may
* have had the file open with delete on close set and
* deleted it when its last reference to this file
* went away. Hence we log this but not at debug level
* zero.
*/
DEBUG(5,("close_remove_share_mode: file %s. Delete on close "
"was set and unlink failed with error %s\n",
fsp_str_dbg(fsp), strerror(errno)));
status = map_nt_error_from_unix(errno);
retries = 0;
goto retry_delete;
}
} else {
if (SMB_VFS_UNLINK(conn, fsp->fsp_name) != 0) {
/*
* This call can potentially fail as another smbd may
* have had the file open with delete on close set and
* deleted it when its last reference to this file
* went away. Hence we log this but not at debug level
* zero.
*/
DEBUG(5,("close_remove_share_mode: file %s. Delete on close "
"was set and unlink failed with error %s\n",
fsp_str_dbg(fsp), strerror(errno)));
status = map_nt_error_from_unix(errno);
}
}
/* As we now have POSIX opens which can unlink
* with other open files we may have taken
* this code path with more than one share mode
* entry - ensure we only delete once by resetting
* the delete on close flag. JRA.
*/
skip_retry:
fsp->delete_on_close = false;
reset_delete_on_close_lck(fsp, lck);
done:
if (changed_user) {
/* unbecome user. */
pop_sec_ctx();
}
/* remove filesystem sharemodes */
ret_flock = SMB_VFS_KERNEL_FLOCK(fsp, 0, 0);
if (ret_flock == -1) {
DEBUG(2, ("close_remove_share_mode: removing kernel flock for "
"%s failed: %s\n", fsp_str_dbg(fsp),
strerror(errno)));
}
if (!del_share_mode(lck, fsp)) {
DEBUG(0, ("close_remove_share_mode: Could not delete share "
"entry for file %s\n", fsp_str_dbg(fsp)));
}
TALLOC_FREE(lck);
if (delete_file) {
/*
* Do the notification after we released the share
* mode lock. Inside notify_fname we take out another
* tdb lock. With ctdb also accessing our databases,
* this can lead to deadlocks. Putting this notify
* after the TALLOC_FREE(lck) above we avoid locking
* two records simultaneously. Notifies are async and
* informational only, so calling the notify_fname
* without holding the share mode lock should not do
* any harm.
*/
notify_fname(conn, NOTIFY_ACTION_REMOVED,
FILE_NOTIFY_CHANGE_FILE_NAME,
fsp->fsp_name->base_name);
}
return status;
}
static NTSTATUS close_directory(struct smb_request *req, files_struct *fsp,
enum file_close_type close_type)
{
struct server_id self = messaging_server_id(fsp->conn->sconn->msg_ctx);
struct share_mode_lock *lck = NULL;
bool delete_dir = False;
NTSTATUS status = NT_STATUS_OK;
NTSTATUS status1 = NT_STATUS_OK;
const struct security_token *del_nt_token = NULL;
const struct security_unix_token *del_token = NULL;
NTSTATUS notify_status;
if (fsp->conn->sconn->using_smb2) {
notify_status = STATUS_NOTIFY_CLEANUP;
} else {
notify_status = NT_STATUS_OK;
}
/*
* NT can set delete_on_close of the last open
* reference to a directory also.
*/
lck = get_existing_share_mode_lock(talloc_tos(), fsp->file_id);
if (lck == NULL) {
DEBUG(0, ("close_directory: Could not get share mode lock for "
"%s\n", fsp_str_dbg(fsp)));
return NT_STATUS_INVALID_PARAMETER;
}
if (fsp->initial_delete_on_close) {
bool became_user = False;
/* Initial delete on close was set - for
* directories we don't care if anyone else
* wrote a real delete on close. */
if (get_current_vuid(fsp->conn) != fsp->vuid) {
become_user(fsp->conn, fsp->vuid);
became_user = True;
}
send_stat_cache_delete_message(fsp->conn->sconn->msg_ctx,
fsp->fsp_name->base_name);
set_delete_on_close_lck(fsp, lck,
get_current_nttok(fsp->conn),
get_current_utok(fsp->conn));
fsp->delete_on_close = true;
if (became_user) {
unbecome_user();
}
}
delete_dir = get_delete_on_close_token(lck, fsp->name_hash,
&del_nt_token, &del_token);
if (delete_dir) {
int i;
/* See if others still have the dir open. If this is the
* case, then don't delete. If all opens are POSIX delete now. */
for (i=0; i<lck->data->num_share_modes; i++) {
struct share_mode_entry *e = &lck->data->share_modes[i];
if (is_valid_share_mode_entry(e) &&
e->name_hash == fsp->name_hash) {
if ((fsp->posix_flags & FSP_POSIX_FLAGS_OPEN) &&
(e->flags & SHARE_MODE_FLAG_POSIX_OPEN))
{
continue;
}
if (serverid_equal(&self, &e->pid) &&
(e->share_file_id == fsp->fh->gen_id)) {
continue;
}
if (share_mode_stale_pid(lck->data, i)) {
continue;
}
delete_dir = False;
break;
}
}
}
if ((close_type == NORMAL_CLOSE || close_type == SHUTDOWN_CLOSE) &&
delete_dir) {
/* Become the user who requested the delete. */
if (!push_sec_ctx()) {
smb_panic("close_directory: failed to push sec_ctx.\n");
}
set_sec_ctx(del_token->uid,
del_token->gid,
del_token->ngroups,
del_token->groups,
del_nt_token);
if (!del_share_mode(lck, fsp)) {
DEBUG(0, ("close_directory: Could not delete share entry for "
"%s\n", fsp_str_dbg(fsp)));
}
TALLOC_FREE(lck);
if ((fsp->conn->fs_capabilities & FILE_NAMED_STREAMS)
&& !is_ntfs_stream_smb_fname(fsp->fsp_name)) {
status = delete_all_streams(fsp->conn, fsp->fsp_name->base_name);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(5, ("delete_all_streams failed: %s\n",
nt_errstr(status)));
return status;
}
}
status = rmdir_internals(talloc_tos(), fsp);
DEBUG(5,("close_directory: %s. Delete on close was set - "
"deleting directory returned %s.\n",
fsp_str_dbg(fsp), nt_errstr(status)));
/* unbecome user. */
pop_sec_ctx();
/*
* Ensure we remove any change notify requests that would
* now fail as the directory has been deleted.
*/
if (NT_STATUS_IS_OK(status)) {
notify_status = NT_STATUS_DELETE_PENDING;
}
} else {
if (!del_share_mode(lck, fsp)) {
DEBUG(0, ("close_directory: Could not delete share entry for "
"%s\n", fsp_str_dbg(fsp)));
}
TALLOC_FREE(lck);
}
remove_pending_change_notify_requests_by_fid(fsp, notify_status);
status1 = fd_close(fsp);
if (!NT_STATUS_IS_OK(status1)) {
DEBUG(0, ("Could not close dir! fname=%s, fd=%d, err=%d=%s\n",
fsp_str_dbg(fsp), fsp->fh->fd, errno,
strerror(errno)));
}
/*
* Do the code common to files and directories.
*/
close_filestruct(fsp);
file_free(req, fsp);
if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_OK(status1)) {
status = status1;
}
return status;
}
BOOL rename_share_filename(struct share_mode_lock *lck,
const char *servicepath,
const char *newname)
{
size_t sp_len;
size_t fn_len;
size_t msg_len;
char *frm = NULL;
int i;
if (!lck) {
return False;
}
DEBUG(10, ("rename_share_filename: servicepath %s newname %s\n",
servicepath, newname));
/*
* rename_internal_fsp() and rename_internals() add './' to
* head of newname if newname does not contain a '/'.
*/
while (newname[0] && newname[1] && newname[0] == '.' && newname[1] == '/') {
newname += 2;
}
lck->servicepath = talloc_strdup(lck, servicepath);
lck->filename = talloc_strdup(lck, newname);
if (lck->filename == NULL || lck->servicepath == NULL) {
DEBUG(0, ("rename_share_filename: talloc failed\n"));
return False;
}
lck->modified = True;
sp_len = strlen(lck->servicepath);
fn_len = strlen(lck->filename);
msg_len = MSG_FILE_RENAMED_MIN_SIZE + sp_len + 1 + fn_len + 1;
/* Set up the name changed message. */
frm = TALLOC(lck, msg_len);
if (!frm) {
return False;
}
SDEV_T_VAL(frm,0,lck->dev);
SINO_T_VAL(frm,8,lck->ino);
DEBUG(10,("rename_share_filename: msg_len = %u\n", (unsigned int)msg_len ));
safe_strcpy(&frm[16], lck->servicepath, sp_len);
safe_strcpy(&frm[16 + sp_len + 1], lck->filename, fn_len);
/* Send the messages. */
for (i=0; i<lck->num_share_modes; i++) {
struct share_mode_entry *se = &lck->share_modes[i];
if (!is_valid_share_mode_entry(se)) {
continue;
}
/* But not to ourselves... */
if (procid_is_me(&se->pid)) {
continue;
}
DEBUG(10,("rename_share_filename: sending rename message to pid %u "
"dev %x, inode %.0f sharepath %s newname %s\n",
(unsigned int)procid_to_pid(&se->pid),
(unsigned int)lck->dev, (double)lck->ino,
lck->servicepath, lck->filename ));
become_root();
message_send_pid(se->pid, MSG_SMB_FILE_RENAME,
frm, msg_len, True);
unbecome_root();
}
return True;
}
static NTSTATUS close_directory(files_struct *fsp, enum file_close_type close_type)
{
struct share_mode_lock *lck = 0;
BOOL delete_dir = False;
NTSTATUS status = NT_STATUS_OK;
/*
* NT can set delete_on_close of the last open
* reference to a directory also.
*/
lck = get_share_mode_lock(NULL, fsp->dev, fsp->inode, NULL, NULL);
if (lck == NULL) {
DEBUG(0, ("close_directory: Could not get share mode lock for %s\n", fsp->fsp_name));
return NT_STATUS_INVALID_PARAMETER;
}
if (!del_share_mode(lck, fsp)) {
DEBUG(0, ("close_directory: Could not delete share entry for %s\n", fsp->fsp_name));
}
if (fsp->initial_delete_on_close) {
BOOL became_user = False;
/* Initial delete on close was set - for
* directories we don't care if anyone else
* wrote a real delete on close. */
if (current_user.vuid != fsp->vuid) {
become_user(fsp->conn, fsp->vuid);
became_user = True;
}
send_stat_cache_delete_message(fsp->fsp_name);
set_delete_on_close_lck(lck, True, ¤t_user.ut);
if (became_user) {
unbecome_user();
}
}
delete_dir = lck->delete_on_close;
if (delete_dir) {
int i;
/* See if others still have the dir open. If this is the
* case, then don't delete. If all opens are POSIX delete now. */
for (i=0; i<lck->num_share_modes; i++) {
struct share_mode_entry *e = &lck->share_modes[i];
if (is_valid_share_mode_entry(e)) {
if (fsp->posix_open && (e->flags & SHARE_MODE_FLAG_POSIX_OPEN)) {
continue;
}
delete_dir = False;
break;
}
}
}
if ((close_type == NORMAL_CLOSE || close_type == SHUTDOWN_CLOSE) &&
delete_dir &&
lck->delete_token) {
/* Become the user who requested the delete. */
if (!push_sec_ctx()) {
smb_panic("close_directory: failed to push sec_ctx.\n");
}
set_sec_ctx(lck->delete_token->uid,
lck->delete_token->gid,
lck->delete_token->ngroups,
lck->delete_token->groups,
NULL);
TALLOC_FREE(lck);
status = rmdir_internals(fsp->conn, fsp->fsp_name);
DEBUG(5,("close_directory: %s. Delete on close was set - "
"deleting directory returned %s.\n",
fsp->fsp_name, nt_errstr(status)));
/* unbecome user. */
pop_sec_ctx();
/*
* Ensure we remove any change notify requests that would
* now fail as the directory has been deleted.
*/
if(NT_STATUS_IS_OK(status)) {
remove_pending_change_notify_requests_by_fid(fsp, NT_STATUS_DELETE_PENDING);
}
} else {
TALLOC_FREE(lck);
remove_pending_change_notify_requests_by_fid(
fsp, NT_STATUS_OK);
}
/*
* Do the code common to files and directories.
*/
close_filestruct(fsp);
file_free(fsp);
return status;
}
static NTSTATUS close_remove_share_mode(files_struct *fsp,
enum file_close_type close_type)
{
connection_struct *conn = fsp->conn;
BOOL delete_file = False;
struct share_mode_lock *lck;
SMB_STRUCT_STAT sbuf;
NTSTATUS status = NT_STATUS_OK;
int ret;
/*
* Lock the share entries, and determine if we should delete
* on close. If so delete whilst the lock is still in effect.
* This prevents race conditions with the file being created. JRA.
*/
lck = get_share_mode_lock(NULL, fsp->dev, fsp->inode, NULL, NULL);
if (lck == NULL) {
DEBUG(0, ("close_remove_share_mode: Could not get share mode "
"lock for file %s\n", fsp->fsp_name));
return NT_STATUS_INVALID_PARAMETER;
}
if (!del_share_mode(lck, fsp)) {
DEBUG(0, ("close_remove_share_mode: Could not delete share "
"entry for file %s\n", fsp->fsp_name));
}
if (fsp->initial_delete_on_close && (lck->delete_token == NULL)) {
BOOL became_user = False;
/* Initial delete on close was set and no one else
* wrote a real delete on close. */
if (current_user.vuid != fsp->vuid) {
become_user(conn, fsp->vuid);
became_user = True;
}
set_delete_on_close_lck(lck, True, ¤t_user.ut);
if (became_user) {
unbecome_user();
}
}
delete_file = lck->delete_on_close;
if (delete_file) {
int i;
/* See if others still have the file open. If this is the
* case, then don't delete. If all opens are POSIX delete now. */
for (i=0; i<lck->num_share_modes; i++) {
struct share_mode_entry *e = &lck->share_modes[i];
if (is_valid_share_mode_entry(e)) {
if (fsp->posix_open && (e->flags & SHARE_MODE_FLAG_POSIX_OPEN)) {
continue;
}
delete_file = False;
break;
}
}
}
/* Notify any deferred opens waiting on this close. */
notify_deferred_opens(lck);
reply_to_oplock_break_requests(fsp);
/*
* NT can set delete_on_close of the last open
* reference to a file.
*/
if (!(close_type == NORMAL_CLOSE || close_type == SHUTDOWN_CLOSE)
|| !delete_file
|| (lck->delete_token == NULL)) {
TALLOC_FREE(lck);
return NT_STATUS_OK;
}
/*
* Ok, we have to delete the file
*/
DEBUG(5,("close_remove_share_mode: file %s. Delete on close was set "
"- deleting file.\n", fsp->fsp_name));
/* Become the user who requested the delete. */
if (!push_sec_ctx()) {
smb_panic("close_remove_share_mode: file %s. failed to push "
"sec_ctx.\n");
}
set_sec_ctx(lck->delete_token->uid,
lck->delete_token->gid,
lck->delete_token->ngroups,
lck->delete_token->groups,
NULL);
/* We can only delete the file if the name we have is still valid and
hasn't been renamed. */
if (fsp->posix_open) {
ret = SMB_VFS_LSTAT(conn,fsp->fsp_name,&sbuf);
} else {
ret = SMB_VFS_STAT(conn,fsp->fsp_name,&sbuf);
}
if (ret != 0) {
DEBUG(5,("close_remove_share_mode: file %s. Delete on close "
"was set and stat failed with error %s\n",
fsp->fsp_name, strerror(errno) ));
/*
* Don't save the errno here, we ignore this error
*/
goto done;
}
if(sbuf.st_dev != fsp->dev || sbuf.st_ino != fsp->inode) {
DEBUG(5,("close_remove_share_mode: file %s. Delete on close "
"was set and dev and/or inode does not match\n",
fsp->fsp_name ));
DEBUG(5,("close_remove_share_mode: file %s. stored dev = %x, "
"inode = %.0f stat dev = %x, inode = %.0f\n",
fsp->fsp_name,
(unsigned int)fsp->dev, (double)fsp->inode,
(unsigned int)sbuf.st_dev, (double)sbuf.st_ino ));
/*
* Don't save the errno here, we ignore this error
*/
goto done;
}
if (SMB_VFS_UNLINK(conn,fsp->fsp_name) != 0) {
/*
* This call can potentially fail as another smbd may
* have had the file open with delete on close set and
* deleted it when its last reference to this file
* went away. Hence we log this but not at debug level
* zero.
*/
DEBUG(5,("close_remove_share_mode: file %s. Delete on close "
"was set and unlink failed with error %s\n",
fsp->fsp_name, strerror(errno) ));
status = map_nt_error_from_unix(errno);
}
notify_fname(conn, NOTIFY_ACTION_REMOVED,
FILE_NOTIFY_CHANGE_FILE_NAME,
fsp->fsp_name);
/* As we now have POSIX opens which can unlink
* with other open files we may have taken
* this code path with more than one share mode
* entry - ensure we only delete once by resetting
* the delete on close flag. JRA.
*/
set_delete_on_close_lck(lck, False, NULL);
done:
/* unbecome user. */
pop_sec_ctx();
TALLOC_FREE(lck);
return status;
}
static NTSTATUS close_remove_share_mode(files_struct *fsp,
enum file_close_type close_type)
{
connection_struct *conn = fsp->conn;
bool delete_file = false;
bool changed_user = false;
struct share_mode_lock *lck = NULL;
NTSTATUS status = NT_STATUS_OK;
NTSTATUS tmp_status;
struct file_id id;
/* Ensure any pending write time updates are done. */
if (fsp->update_write_time_event) {
update_write_time_handler(smbd_event_context(),
fsp->update_write_time_event,
timeval_current(),
(void *)fsp);
}
/*
* Lock the share entries, and determine if we should delete
* on close. If so delete whilst the lock is still in effect.
* This prevents race conditions with the file being created. JRA.
*/
lck = get_share_mode_lock(talloc_tos(), fsp->file_id, NULL, NULL,
NULL);
if (lck == NULL) {
DEBUG(0, ("close_remove_share_mode: Could not get share mode "
"lock for file %s\n", fsp_str_dbg(fsp)));
status = NT_STATUS_INVALID_PARAMETER;
goto done;
}
if (fsp->write_time_forced) {
DEBUG(10,("close_remove_share_mode: write time forced "
"for file %s\n",
fsp_str_dbg(fsp)));
set_close_write_time(fsp, lck->changed_write_time);
} else if (fsp->update_write_time_on_close) {
/* Someone had a pending write. */
if (null_timespec(fsp->close_write_time)) {
DEBUG(10,("close_remove_share_mode: update to current time "
"for file %s\n",
fsp_str_dbg(fsp)));
/* Update to current time due to "normal" write. */
set_close_write_time(fsp, timespec_current());
} else {
DEBUG(10,("close_remove_share_mode: write time pending "
"for file %s\n",
fsp_str_dbg(fsp)));
/* Update to time set on close call. */
set_close_write_time(fsp, fsp->close_write_time);
}
}
if (!del_share_mode(lck, fsp)) {
DEBUG(0, ("close_remove_share_mode: Could not delete share "
"entry for file %s\n",
fsp_str_dbg(fsp)));
}
if (fsp->initial_delete_on_close && (lck->delete_token == NULL)) {
bool became_user = False;
/* Initial delete on close was set and no one else
* wrote a real delete on close. */
if (current_user.vuid != fsp->vuid) {
become_user(conn, fsp->vuid);
became_user = True;
}
fsp->delete_on_close = true;
set_delete_on_close_lck(lck, True, ¤t_user.ut);
if (became_user) {
unbecome_user();
}
}
delete_file = lck->delete_on_close;
if (delete_file) {
int i;
/* See if others still have the file open. If this is the
* case, then don't delete. If all opens are POSIX delete now. */
for (i=0; i<lck->num_share_modes; i++) {
struct share_mode_entry *e = &lck->share_modes[i];
if (is_valid_share_mode_entry(e)) {
if (fsp->posix_open && (e->flags & SHARE_MODE_FLAG_POSIX_OPEN)) {
continue;
}
delete_file = False;
break;
}
}
}
/* Notify any deferred opens waiting on this close. */
notify_deferred_opens(lck);
reply_to_oplock_break_requests(fsp);
/*
* NT can set delete_on_close of the last open
* reference to a file.
*/
if (!(close_type == NORMAL_CLOSE || close_type == SHUTDOWN_CLOSE)
|| !delete_file
|| (lck->delete_token == NULL)) {
TALLOC_FREE(lck);
return NT_STATUS_OK;
}
/*
* Ok, we have to delete the file
*/
DEBUG(5,("close_remove_share_mode: file %s. Delete on close was set "
"- deleting file.\n", fsp_str_dbg(fsp)));
/*
* Don't try to update the write time when we delete the file
*/
fsp->update_write_time_on_close = false;
if (!unix_token_equal(lck->delete_token, ¤t_user.ut)) {
/* Become the user who requested the delete. */
DEBUG(5,("close_remove_share_mode: file %s. "
"Change user to uid %u\n",
fsp_str_dbg(fsp),
(unsigned int)lck->delete_token->uid));
if (!push_sec_ctx()) {
smb_panic("close_remove_share_mode: file %s. failed to push "
"sec_ctx.\n");
}
set_sec_ctx(lck->delete_token->uid,
lck->delete_token->gid,
lck->delete_token->ngroups,
lck->delete_token->groups,
NULL);
changed_user = true;
}
/* We can only delete the file if the name we have is still valid and
hasn't been renamed. */
tmp_status = vfs_stat_fsp(fsp);
if (!NT_STATUS_IS_OK(tmp_status)) {
DEBUG(5,("close_remove_share_mode: file %s. Delete on close "
"was set and stat failed with error %s\n",
fsp_str_dbg(fsp), nt_errstr(tmp_status)));
/*
* Don't save the errno here, we ignore this error
*/
goto done;
}
id = vfs_file_id_from_sbuf(conn, &fsp->fsp_name->st);
if (!file_id_equal(&fsp->file_id, &id)) {
DEBUG(5,("close_remove_share_mode: file %s. Delete on close "
"was set and dev and/or inode does not match\n",
fsp_str_dbg(fsp)));
DEBUG(5,("close_remove_share_mode: file %s. stored file_id %s, "
"stat file_id %s\n",
fsp_str_dbg(fsp),
file_id_string_tos(&fsp->file_id),
file_id_string_tos(&id)));
/*
* Don't save the errno here, we ignore this error
*/
goto done;
}
if ((conn->fs_capabilities & FILE_NAMED_STREAMS)
&& !is_ntfs_stream_smb_fname(fsp->fsp_name)) {
status = delete_all_streams(conn, fsp->fsp_name->base_name);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(5, ("delete_all_streams failed: %s\n",
nt_errstr(status)));
goto done;
}
}
if (SMB_VFS_UNLINK(conn, fsp->fsp_name) != 0) {
/*
* This call can potentially fail as another smbd may
* have had the file open with delete on close set and
* deleted it when its last reference to this file
* went away. Hence we log this but not at debug level
* zero.
*/
DEBUG(5,("close_remove_share_mode: file %s. Delete on close "
"was set and unlink failed with error %s\n",
fsp_str_dbg(fsp), strerror(errno)));
status = map_nt_error_from_unix(errno);
}
notify_fname(conn, NOTIFY_ACTION_REMOVED,
FILE_NOTIFY_CHANGE_FILE_NAME,
fsp->fsp_name->base_name);
/* As we now have POSIX opens which can unlink
* with other open files we may have taken
* this code path with more than one share mode
* entry - ensure we only delete once by resetting
* the delete on close flag. JRA.
*/
fsp->delete_on_close = false;
set_delete_on_close_lck(lck, False, NULL);
done:
if (changed_user) {
/* unbecome user. */
pop_sec_ctx();
}
TALLOC_FREE(lck);
return status;
}
bool rename_share_filename(struct messaging_context *msg_ctx,
struct share_mode_lock *lck,
const char *servicepath,
uint32_t orig_name_hash,
uint32_t new_name_hash,
const struct smb_filename *smb_fname_dst)
{
struct share_mode_data *d = lck->data;
size_t sp_len;
size_t bn_len;
size_t sn_len;
size_t msg_len;
char *frm = NULL;
int i;
bool strip_two_chars = false;
bool has_stream = smb_fname_dst->stream_name != NULL;
struct server_id self_pid = messaging_server_id(msg_ctx);
DEBUG(10, ("rename_share_filename: servicepath %s newname %s\n",
servicepath, smb_fname_dst->base_name));
/*
* rename_internal_fsp() and rename_internals() add './' to
* head of newname if newname does not contain a '/'.
*/
if (smb_fname_dst->base_name[0] &&
smb_fname_dst->base_name[1] &&
smb_fname_dst->base_name[0] == '.' &&
smb_fname_dst->base_name[1] == '/') {
strip_two_chars = true;
}
d->servicepath = talloc_strdup(d, servicepath);
d->base_name = talloc_strdup(d, smb_fname_dst->base_name +
(strip_two_chars ? 2 : 0));
d->stream_name = talloc_strdup(d, smb_fname_dst->stream_name);
if (d->base_name == NULL ||
(has_stream && d->stream_name == NULL) ||
d->servicepath == NULL) {
DEBUG(0, ("rename_share_filename: talloc failed\n"));
return False;
}
d->modified = True;
sp_len = strlen(d->servicepath);
bn_len = strlen(d->base_name);
sn_len = has_stream ? strlen(d->stream_name) : 0;
msg_len = MSG_FILE_RENAMED_MIN_SIZE + sp_len + 1 + bn_len + 1 +
sn_len + 1;
/* Set up the name changed message. */
frm = talloc_array(d, char, msg_len);
if (!frm) {
return False;
}
push_file_id_24(frm, &d->id);
DEBUG(10,("rename_share_filename: msg_len = %u\n", (unsigned int)msg_len ));
strlcpy(&frm[24],
d->servicepath ? d->servicepath : "",
sp_len+1);
strlcpy(&frm[24 + sp_len + 1],
d->base_name ? d->base_name : "",
bn_len+1);
strlcpy(&frm[24 + sp_len + 1 + bn_len + 1],
d->stream_name ? d->stream_name : "",
sn_len+1);
/* Send the messages. */
for (i=0; i<d->num_share_modes; i++) {
struct share_mode_entry *se = &d->share_modes[i];
if (!is_valid_share_mode_entry(se)) {
continue;
}
/* If this is a hardlink to the inode
with a different name, skip this. */
if (se->name_hash != orig_name_hash) {
continue;
}
se->name_hash = new_name_hash;
/* But not to ourselves... */
if (serverid_equal(&se->pid, &self_pid)) {
continue;
}
if (share_mode_stale_pid(d, i)) {
continue;
}
DEBUG(10,("rename_share_filename: sending rename message to "
"pid %s file_id %s sharepath %s base_name %s "
"stream_name %s\n",
procid_str_static(&se->pid),
file_id_string_tos(&d->id),
d->servicepath, d->base_name,
has_stream ? d->stream_name : ""));
messaging_send_buf(msg_ctx, se->pid, MSG_SMB_FILE_RENAME,
(uint8 *)frm, msg_len);
}
return True;
}
static int close_remove_share_mode(files_struct *fsp, enum file_close_type close_type)
{
connection_struct *conn = fsp->conn;
BOOL delete_file = False;
struct share_mode_lock *lck;
/*
* Lock the share entries, and determine if we should delete
* on close. If so delete whilst the lock is still in effect.
* This prevents race conditions with the file being created. JRA.
*/
lck = get_share_mode_lock(NULL, fsp->dev, fsp->inode, NULL, NULL);
if (lck == NULL) {
DEBUG(0, ("close_remove_share_mode: Could not get share mode lock for file %s\n", fsp->fsp_name));
return EINVAL;
}
if (!del_share_mode(lck, fsp)) {
DEBUG(0, ("close_remove_share_mode: Could not delete share entry for file %s\n", fsp->fsp_name));
}
delete_file = (lck->delete_on_close | lck->initial_delete_on_close);
if (delete_file) {
int i;
/* See if others still have the file open. If this is the
* case, then don't delete */
for (i=0; i<lck->num_share_modes; i++) {
if (is_valid_share_mode_entry(&lck->share_modes[i])) {
delete_file = False;
break;
}
}
}
/* Notify any deferred opens waiting on this close. */
notify_deferred_opens(lck);
reply_to_oplock_break_requests(fsp);
/*
* NT can set delete_on_close of the last open
* reference to a file.
*/
if ((close_type == NORMAL_CLOSE || close_type == SHUTDOWN_CLOSE) &&
delete_file &&
lck->delete_token) {
SMB_STRUCT_STAT sbuf;
DEBUG(5,("close_remove_share_mode: file %s. Delete on close was set - deleting file.\n",
fsp->fsp_name));
/* Become the user who requested the delete. */
if (!push_sec_ctx()) {
smb_panic("close_remove_share_mode: file %s. failed to push sec_ctx.\n");
}
set_sec_ctx(lck->delete_token->uid,
lck->delete_token->gid,
lck->delete_token->ngroups,
lck->delete_token->groups,
NULL);
/* We can only delete the file if the name we have
is still valid and hasn't been renamed. */
if(SMB_VFS_STAT(conn,fsp->fsp_name,&sbuf) != 0) {
DEBUG(5,("close_remove_share_mode: file %s. Delete on close was set "
"and stat failed with error %s\n",
fsp->fsp_name, strerror(errno) ));
} else {
if(sbuf.st_dev != fsp->dev || sbuf.st_ino != fsp->inode) {
DEBUG(5,("close_remove_share_mode: file %s. Delete on close was set and "
"dev and/or inode does not match\n",
fsp->fsp_name ));
DEBUG(5,("close_remove_share_mode: file %s. stored dev = %x, inode = %.0f "
"stat dev = %x, inode = %.0f\n",
fsp->fsp_name,
(unsigned int)fsp->dev, (double)fsp->inode,
(unsigned int)sbuf.st_dev, (double)sbuf.st_ino ));
} else if(SMB_VFS_UNLINK(conn,fsp->fsp_name) != 0) {
/*
* This call can potentially fail as another smbd may have
* had the file open with delete on close set and deleted
* it when its last reference to this file went away. Hence
* we log this but not at debug level zero.
*/
DEBUG(5,("close_remove_share_mode: file %s. Delete on close was set "
"and unlink failed with error %s\n",
fsp->fsp_name, strerror(errno) ));
}
}
/* unbecome user. */
pop_sec_ctx();
process_pending_change_notify_queue((time_t)0);
}
TALLOC_FREE(lck);
return 0;
}
static int print_share_mode(const struct share_mode_entry *e,
const char *sharepath,
const char *fname,
const char *sname,
void *dummy)
{
static int count;
if (do_checks && !is_valid_share_mode_entry(e)) {
return 0;
}
if (count==0) {
d_printf("Locked files:\n");
d_printf("Pid Uid DenyMode Access R/W Oplock SharePath Name Time\n");
d_printf("--------------------------------------------------------------------------------------------------\n");
}
count++;
if (do_checks && !serverid_exists(&e->pid)) {
/* the process for this entry does not exist any more */
return 0;
}
if (Ucrit_checkPid(e->pid)) {
struct server_id_buf tmp;
d_printf("%-11s ", server_id_str_buf(e->pid, &tmp));
d_printf("%-9u ", (unsigned int)e->uid);
switch (map_share_mode_to_deny_mode(e->share_access,
e->private_options)) {
case DENY_NONE: d_printf("DENY_NONE "); break;
case DENY_ALL: d_printf("DENY_ALL "); break;
case DENY_DOS: d_printf("DENY_DOS "); break;
case DENY_READ: d_printf("DENY_READ "); break;
case DENY_WRITE:printf("DENY_WRITE "); break;
case DENY_FCB: d_printf("DENY_FCB "); break;
default: {
d_printf("unknown-please report ! "
"e->share_access = 0x%x, "
"e->private_options = 0x%x\n",
(unsigned int)e->share_access,
(unsigned int)e->private_options );
break;
}
}
d_printf("0x%-8x ",(unsigned int)e->access_mask);
if ((e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA))==
(FILE_READ_DATA|FILE_WRITE_DATA)) {
d_printf("RDWR ");
} else if (e->access_mask & FILE_WRITE_DATA) {
d_printf("WRONLY ");
} else {
d_printf("RDONLY ");
}
if((e->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
(EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) {
d_printf("EXCLUSIVE+BATCH ");
} else if (e->op_type & EXCLUSIVE_OPLOCK) {
d_printf("EXCLUSIVE ");
} else if (e->op_type & BATCH_OPLOCK) {
d_printf("BATCH ");
} else if (e->op_type & LEVEL_II_OPLOCK) {
d_printf("LEVEL_II ");
} else if (e->op_type == LEASE_OPLOCK) {
uint32_t lstate = e->lease->current_state;
d_printf("LEASE(%s%s%s)%s%s%s ",
(lstate & SMB2_LEASE_READ)?"R":"",
(lstate & SMB2_LEASE_WRITE)?"W":"",
(lstate & SMB2_LEASE_HANDLE)?"H":"",
(lstate & SMB2_LEASE_READ)?"":" ",
(lstate & SMB2_LEASE_WRITE)?"":" ",
(lstate & SMB2_LEASE_HANDLE)?"":" ");
} else {
d_printf("NONE ");
}
d_printf(" %s %s%s %s",
sharepath, fname,
sname ? sname : "",
time_to_asc((time_t)e->time.tv_sec));
}
return 0;
}
