struct deferred_open_record {
BOOL delayed_for_oplocks;
- SMB_DEV_T dev;
- SMB_INO_T inode;
+ struct file_id id;
};
/****************************************************************************
fd support routines - attempt to do a dos_open.
****************************************************************************/
-static int fd_open(struct connection_struct *conn,
- const char *fname,
- int flags,
- mode_t mode)
+static NTSTATUS fd_open(struct connection_struct *conn,
+ const char *fname,
+ files_struct *fsp,
+ int flags,
+ mode_t mode)
{
- int fd;
+ NTSTATUS status = NT_STATUS_OK;
+
#ifdef O_NOFOLLOW
- if (!lp_symlinks(SNUM(conn))) {
+ /*
+ * Never follow symlinks on a POSIX client. The
+ * client should be doing this.
+ */
+
+ if (fsp->posix_open || !lp_symlinks(SNUM(conn))) {
flags |= O_NOFOLLOW;
}
#endif
- fd = SMB_VFS_OPEN(conn,fname,flags,mode);
+ fsp->fh->fd = SMB_VFS_OPEN(conn,fname,fsp,flags,mode);
+ if (fsp->fh->fd == -1) {
+ status = map_nt_error_from_unix(errno);
+ }
- DEBUG(10,("fd_open: name %s, flags = 0%o mode = 0%o, fd = %d. %s\n", fname,
- flags, (int)mode, fd, (fd == -1) ? strerror(errno) : "" ));
+ DEBUG(10,("fd_open: name %s, flags = 0%o mode = 0%o, fd = %d. %s\n",
+ fname, flags, (int)mode, fsp->fh->fd,
+ (fsp->fh->fd == -1) ? strerror(errno) : "" ));
- return fd;
+ return status;
}
/****************************************************************************
Close the file associated with a fsp.
****************************************************************************/
-int fd_close(struct connection_struct *conn,
- files_struct *fsp)
+NTSTATUS fd_close(struct connection_struct *conn, files_struct *fsp)
{
if (fsp->fh->fd == -1) {
- return 0; /* What we used to call a stat open. */
+ return NT_STATUS_OK; /* What we used to call a stat open. */
}
if (fsp->fh->ref_count > 1) {
- return 0; /* Shared handle. Only close last reference. */
+ return NT_STATUS_OK; /* Shared handle. Only close last reference. */
}
return fd_close_posix(conn, fsp);
}
Do this by fd if possible.
****************************************************************************/
-void change_owner_to_parent(connection_struct *conn,
- files_struct *fsp,
- const char *fname,
- SMB_STRUCT_STAT *psbuf)
+static void change_file_owner_to_parent(connection_struct *conn,
+ const char *inherit_from_dir,
+ files_struct *fsp)
{
- const char *parent_path = parent_dirname(fname);
SMB_STRUCT_STAT parent_st;
int ret;
- ret = SMB_VFS_STAT(conn, parent_path, &parent_st);
+ ret = SMB_VFS_STAT(conn, inherit_from_dir, &parent_st);
if (ret == -1) {
- DEBUG(0,("change_owner_to_parent: failed to stat parent "
+ DEBUG(0,("change_file_owner_to_parent: failed to stat parent "
"directory %s. Error was %s\n",
- parent_path, strerror(errno) ));
+ inherit_from_dir, strerror(errno) ));
return;
}
- if (fsp && fsp->fh->fd != -1) {
- become_root();
- ret = SMB_VFS_FCHOWN(fsp, fsp->fh->fd, parent_st.st_uid, (gid_t)-1);
- unbecome_root();
- if (ret == -1) {
- DEBUG(0,("change_owner_to_parent: failed to fchown "
- "file %s to parent directory uid %u. Error "
- "was %s\n", fname,
- (unsigned int)parent_st.st_uid,
- strerror(errno) ));
- }
+ become_root();
+ ret = SMB_VFS_FCHOWN(fsp, fsp->fh->fd, parent_st.st_uid, (gid_t)-1);
+ unbecome_root();
+ if (ret == -1) {
+ DEBUG(0,("change_file_owner_to_parent: failed to fchown "
+ "file %s to parent directory uid %u. Error "
+ "was %s\n", fsp->fsp_name,
+ (unsigned int)parent_st.st_uid,
+ strerror(errno) ));
+ }
- DEBUG(10,("change_owner_to_parent: changed new file %s to "
- "parent directory uid %u.\n", fname,
- (unsigned int)parent_st.st_uid ));
+ DEBUG(10,("change_file_owner_to_parent: changed new file %s to "
+ "parent directory uid %u.\n", fsp->fsp_name,
+ (unsigned int)parent_st.st_uid ));
+}
- } else {
- /* We've already done an lstat into psbuf, and we know it's a
- directory. If we can cd into the directory and the dev/ino
- are the same then we can safely chown without races as
- we're locking the directory in place by being in it. This
- should work on any UNIX (thanks tridge :-). JRA.
- */
-
- pstring saved_dir;
- SMB_STRUCT_STAT sbuf;
-
- if (!vfs_GetWd(conn,saved_dir)) {
- DEBUG(0,("change_owner_to_parent: failed to get "
- "current working directory\n"));
- return;
- }
+static void change_dir_owner_to_parent(connection_struct *conn,
+ const char *inherit_from_dir,
+ const char *fname,
+ SMB_STRUCT_STAT *psbuf)
+{
+ pstring saved_dir;
+ SMB_STRUCT_STAT sbuf;
+ SMB_STRUCT_STAT parent_st;
+ int ret;
- /* Chdir into the new path. */
- if (vfs_ChDir(conn, fname) == -1) {
- DEBUG(0,("change_owner_to_parent: failed to change "
- "current working directory to %s. Error "
- "was %s\n", fname, strerror(errno) ));
- goto out;
- }
+ ret = SMB_VFS_STAT(conn, inherit_from_dir, &parent_st);
+ if (ret == -1) {
+ DEBUG(0,("change_dir_owner_to_parent: failed to stat parent "
+ "directory %s. Error was %s\n",
+ inherit_from_dir, strerror(errno) ));
+ return;
+ }
- if (SMB_VFS_STAT(conn,".",&sbuf) == -1) {
- DEBUG(0,("change_owner_to_parent: failed to stat "
- "directory '.' (%s) Error was %s\n",
- fname, strerror(errno)));
- goto out;
- }
+ /* We've already done an lstat into psbuf, and we know it's a
+ directory. If we can cd into the directory and the dev/ino
+ are the same then we can safely chown without races as
+ we're locking the directory in place by being in it. This
+ should work on any UNIX (thanks tridge :-). JRA.
+ */
- /* Ensure we're pointing at the same place. */
- if (sbuf.st_dev != psbuf->st_dev ||
- sbuf.st_ino != psbuf->st_ino ||
- sbuf.st_mode != psbuf->st_mode ) {
- DEBUG(0,("change_owner_to_parent: "
- "device/inode/mode on directory %s changed. "
- "Refusing to chown !\n", fname ));
- goto out;
- }
+ if (!vfs_GetWd(conn,saved_dir)) {
+ DEBUG(0,("change_dir_owner_to_parent: failed to get "
+ "current working directory\n"));
+ return;
+ }
- become_root();
- ret = SMB_VFS_CHOWN(conn, ".", parent_st.st_uid, (gid_t)-1);
- unbecome_root();
- if (ret == -1) {
- DEBUG(10,("change_owner_to_parent: failed to chown "
- "directory %s to parent directory uid %u. "
- "Error was %s\n", fname,
- (unsigned int)parent_st.st_uid, strerror(errno) ));
- goto out;
- }
+ /* Chdir into the new path. */
+ if (vfs_ChDir(conn, fname) == -1) {
+ DEBUG(0,("change_dir_owner_to_parent: failed to change "
+ "current working directory to %s. Error "
+ "was %s\n", fname, strerror(errno) ));
+ goto out;
+ }
- DEBUG(10,("change_owner_to_parent: changed ownership of new "
- "directory %s to parent directory uid %u.\n",
- fname, (unsigned int)parent_st.st_uid ));
+ if (SMB_VFS_STAT(conn,".",&sbuf) == -1) {
+ DEBUG(0,("change_dir_owner_to_parent: failed to stat "
+ "directory '.' (%s) Error was %s\n",
+ fname, strerror(errno)));
+ goto out;
+ }
- out:
+ /* Ensure we're pointing at the same place. */
+ if (sbuf.st_dev != psbuf->st_dev ||
+ sbuf.st_ino != psbuf->st_ino ||
+ sbuf.st_mode != psbuf->st_mode ) {
+ DEBUG(0,("change_dir_owner_to_parent: "
+ "device/inode/mode on directory %s changed. "
+ "Refusing to chown !\n", fname ));
+ goto out;
+ }
- vfs_ChDir(conn,saved_dir);
+ become_root();
+ ret = SMB_VFS_CHOWN(conn, ".", parent_st.st_uid, (gid_t)-1);
+ unbecome_root();
+ if (ret == -1) {
+ DEBUG(10,("change_dir_owner_to_parent: failed to chown "
+ "directory %s to parent directory uid %u. "
+ "Error was %s\n", fname,
+ (unsigned int)parent_st.st_uid, strerror(errno) ));
+ goto out;
}
+
+ DEBUG(10,("change_dir_owner_to_parent: changed ownership of new "
+ "directory %s to parent directory uid %u.\n",
+ fname, (unsigned int)parent_st.st_uid ));
+
+ out:
+
+ vfs_ChDir(conn,saved_dir);
}
/****************************************************************************
Open a file.
****************************************************************************/
-static BOOL open_file(files_struct *fsp,
- connection_struct *conn,
- const char *fname,
- SMB_STRUCT_STAT *psbuf,
- int flags,
- mode_t unx_mode,
- uint32 access_mask)
+static NTSTATUS open_file(files_struct *fsp,
+ connection_struct *conn,
+ const char *parent_dir,
+ const char *name,
+ const char *path,
+ SMB_STRUCT_STAT *psbuf,
+ int flags,
+ mode_t unx_mode,
+ uint32 access_mask, /* client requested access mask. */
+ uint32 open_access_mask) /* what we're actually using in the open. */
{
+ NTSTATUS status = NT_STATUS_OK;
int accmode = (flags & O_ACCMODE);
int local_flags = flags;
BOOL file_existed = VALID_STAT(*psbuf);
if (!CAN_WRITE(conn)) {
/* It's a read-only share - fail if we wanted to write. */
if(accmode != O_RDONLY) {
- DEBUG(3,("Permission denied opening %s\n",fname));
- return False;
+ DEBUG(3,("Permission denied opening %s\n", path));
+ return NT_STATUS_ACCESS_DENIED;
} else if(flags & O_CREAT) {
/* We don't want to write - but we must make sure that
O_CREAT doesn't create the file if we have write
if ((accmode == O_RDONLY) && ((flags & O_TRUNC) == O_TRUNC)) {
DEBUG(10,("open_file: truncate requested on read-only open "
- "for file %s\n",fname ));
+ "for file %s\n", path));
local_flags = (flags & ~O_ACCMODE)|O_RDWR;
}
- if ((access_mask & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA|FILE_EXECUTE)) ||
- (local_flags & O_CREAT) ||
+ if ((open_access_mask & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA|FILE_EXECUTE)) ||
+ (!file_existed && (local_flags & O_CREAT)) ||
((local_flags & O_TRUNC) == O_TRUNC) ) {
/*
* We can't actually truncate here as the file may be locked.
- * open_file_shared will take care of the truncate later. JRA.
+ * open_file_ntcreate will take care of the truncate later. JRA.
*/
local_flags &= ~O_TRUNC;
/* Don't create files with Microsoft wildcard characters. */
if ((local_flags & O_CREAT) && !file_existed &&
- ms_has_wild(fname)) {
- set_saved_ntstatus(NT_STATUS_OBJECT_NAME_INVALID);
- return False;
+ ms_has_wild(path)) {
+ return NT_STATUS_OBJECT_NAME_INVALID;
}
/* Actually do the open */
- fsp->fh->fd = fd_open(conn, fname, local_flags, unx_mode);
- if (fsp->fh->fd == -1) {
+ status = fd_open(conn, path, fsp, local_flags, unx_mode);
+ if (!NT_STATUS_IS_OK(status)) {
DEBUG(3,("Error opening file %s (%s) (local_flags=%d) "
"(flags=%d)\n",
- fname,strerror(errno),local_flags,flags));
- return False;
+ path,nt_errstr(status),local_flags,flags));
+ return status;
}
- /* Inherit the ACL if the file was created. */
if ((local_flags & O_CREAT) && !file_existed) {
- inherit_access_acl(conn, fname, unx_mode);
+
+ /* Inherit the ACL if required */
+ if (lp_inherit_perms(SNUM(conn))) {
+ inherit_access_acl(conn, parent_dir, path,
+ unx_mode);
+ }
+
+ /* Change the owner if required. */
+ if (lp_inherit_owner(SNUM(conn))) {
+ change_file_owner_to_parent(conn, parent_dir,
+ fsp);
+ }
+
+ notify_fname(conn, NOTIFY_ACTION_ADDED,
+ FILE_NOTIFY_CHANGE_FILE_NAME, path);
}
} else {
int ret;
if (fsp->fh->fd == -1) {
- ret = SMB_VFS_STAT(conn, fname, psbuf);
+ ret = SMB_VFS_STAT(conn, path, psbuf);
} else {
ret = SMB_VFS_FSTAT(fsp,fsp->fh->fd,psbuf);
/* If we have an fd, this stat should succeed. */
if (ret == -1) {
DEBUG(0,("Error doing fstat on open file %s "
- "(%s)\n", fname,strerror(errno) ));
+ "(%s)\n", path,strerror(errno) ));
}
}
/* For a non-io open, this stat failing means file not found. JRA */
if (ret == -1) {
+ status = map_nt_error_from_unix(errno);
fd_close(conn, fsp);
- return False;
+ return status;
}
}
if(S_ISDIR(psbuf->st_mode)) {
fd_close(conn, fsp);
errno = EISDIR;
- return False;
+ return NT_STATUS_FILE_IS_A_DIRECTORY;
}
fsp->mode = psbuf->st_mode;
- fsp->inode = psbuf->st_ino;
- fsp->dev = psbuf->st_dev;
+ fsp->file_id = file_id_sbuf(psbuf);
fsp->vuid = current_user.vuid;
fsp->file_pid = global_smbpid;
fsp->can_lock = True;
if (!CAN_WRITE(conn)) {
fsp->can_write = False;
} else {
- fsp->can_write = (access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) ? True : False;
+ fsp->can_write = (access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) ?
+ True : False;
}
fsp->print_file = False;
fsp->modified = False;
fsp->sent_oplock_break = NO_BREAK_SENT;
fsp->is_directory = False;
fsp->is_stat = False;
- if (conn->aio_write_behind_list &&
- is_in_path(fname, conn->aio_write_behind_list, conn->case_sensitive)) {
- fsp->aio_write_behind = True;
- }
- string_set(&fsp->fsp_name,fname);
+ string_set(&fsp->fsp_name, path);
fsp->wcp = NULL; /* Write cache pointer. */
DEBUG(2,("%s opened file %s read=%s write=%s (numopen=%d)\n",
- *current_user_info.smb_name ? current_user_info.smb_name : conn->user,fsp->fsp_name,
+ *current_user_info.smb_name ?
+ current_user_info.smb_name : conn->user,fsp->fsp_name,
BOOLSTR(fsp->can_read), BOOLSTR(fsp->can_write),
conn->num_files_open + 1));
errno = 0;
- return True;
+ return NT_STATUS_OK;
}
/*******************************************************************
if (is_deferred_open_entry(share_entry) &&
!open_was_deferred(share_entry->op_mid)) {
pstring str;
- DEBUG(0, ("Got a deferred entry without a request: "
- "PANIC: %s\n", share_mode_str(num, share_entry)));
+ pstr_sprintf(str, "Got a deferred entry without a request: "
+ "PANIC: %s\n", share_mode_str(num, share_entry));
smb_panic(str);
}
return;
}
- fsp = file_find_dif(share_entry->dev, share_entry->inode,
+ fsp = file_find_dif(share_entry->id,
share_entry->share_file_id);
if (!fsp) {
DEBUG(0,("validate_my_share_entries: PANIC : %s\n",
}
/*
- * 1) No files open at all: Grant whatever the client wants.
+ * 1) No files open at all or internal open: Grant whatever the client wants.
*
* 2) Exclusive (or batch) oplock around: If the requested access is a delete
* request, break if the oplock around is a batch oplock. If it's another
* 3) Only level2 around: Grant level2 and do nothing else.
*/
-static BOOL delay_for_oplocks(struct share_mode_lock *lck, files_struct *fsp)
+static BOOL delay_for_oplocks(struct share_mode_lock *lck,
+ files_struct *fsp,
+ int pass_number,
+ int oplock_request)
{
int i;
struct share_mode_entry *exclusive = NULL;
BOOL valid_entry = False;
BOOL delay_it = False;
BOOL have_level2 = False;
+ NTSTATUS status;
+ char msg[MSG_SMB_SHARE_MODE_ENTRY_SIZE];
- if (is_stat_open(fsp->access_mask)) {
+ if (oplock_request & INTERNAL_OPEN_ONLY) {
fsp->oplock_type = NO_OPLOCK;
+ }
+
+ if ((oplock_request & INTERNAL_OPEN_ONLY) || is_stat_open(fsp->access_mask)) {
return False;
}
/* At least one entry is not an invalid or deferred entry. */
valid_entry = True;
- if (EXCLUSIVE_OPLOCK_TYPE(lck->share_modes[i].op_type)) {
- SMB_ASSERT(exclusive == NULL);
- exclusive = &lck->share_modes[i];
+ if (pass_number == 1) {
+ if (BATCH_OPLOCK_TYPE(lck->share_modes[i].op_type)) {
+ SMB_ASSERT(exclusive == NULL);
+ exclusive = &lck->share_modes[i];
+ }
+ } else {
+ if (EXCLUSIVE_OPLOCK_TYPE(lck->share_modes[i].op_type)) {
+ SMB_ASSERT(exclusive == NULL);
+ exclusive = &lck->share_modes[i];
+ }
}
if (lck->share_modes[i].op_type == LEVEL_II_OPLOCK) {
fsp->oplock_type = FAKE_LEVEL_II_OPLOCK;
}
- if (delay_it) {
- BOOL ret;
- char msg[MSG_SMB_SHARE_MODE_ENTRY_SIZE];
+ if (!delay_it) {
+ return False;
+ }
- DEBUG(10, ("Sending break request to PID %s\n",
- procid_str_static(&exclusive->pid)));
- exclusive->op_mid = get_current_mid();
+ /*
+ * Send a break message to the oplock holder and delay the open for
+ * our client.
+ */
- share_mode_entry_to_message(msg, exclusive);
+ DEBUG(10, ("Sending break request to PID %s\n",
+ procid_str_static(&exclusive->pid)));
+ exclusive->op_mid = get_current_mid();
- become_root();
- ret = message_send_pid(exclusive->pid, MSG_SMB_BREAK_REQUEST,
- msg, MSG_SMB_SHARE_MODE_ENTRY_SIZE, True);
- unbecome_root();
- if (!ret) {
- DEBUG(3, ("Could not send oplock break message\n"));
- }
- file_free(fsp);
+ /* Create the message. */
+ share_mode_entry_to_message(msg, exclusive);
+
+ /* Add in the FORCE_OPLOCK_BREAK_TO_NONE bit in the message if set. We
+ don't want this set in the share mode struct pointed to by lck. */
+
+ if (oplock_request & FORCE_OPLOCK_BREAK_TO_NONE) {
+ SSVAL(msg,6,exclusive->op_type | FORCE_OPLOCK_BREAK_TO_NONE);
}
- return delay_it;
+ status = messaging_send_buf(smbd_messaging_context(), exclusive->pid,
+ MSG_SMB_BREAK_REQUEST,
+ (uint8 *)msg,
+ MSG_SMB_SHARE_MODE_ENTRY_SIZE);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("Could not send oplock break message: %s\n",
+ nt_errstr(status)));
+ }
+
+ return True;
}
static BOOL request_timed_out(struct timeval request_time,
if (procid_is_me(&e->pid) && (e->op_mid == mid)) {
DEBUG(0, ("Trying to defer an already deferred "
"request: mid=%d, exiting\n", mid));
- exit_server("exiting");
+ exit_server("attempt to defer a deferred request");
}
}
if (!push_deferred_smb_message(mid, request_time, timeout,
(char *)state, sizeof(*state))) {
- exit_server("push_deferred_smb_message failed\n");
+ exit_server("push_deferred_smb_message failed");
}
- add_deferred_open(lck, mid, request_time, state->dev, state->inode);
+ add_deferred_open(lck, mid, request_time, state->id);
/*
* Push the MID of this packet on the signing queue.
srv_defer_sign_response(mid);
}
-/****************************************************************************
- Set a kernel flock on a file for NFS interoperability.
- This requires a patch to Linux.
-****************************************************************************/
-
-static void kernel_flock(files_struct *fsp, uint32 share_mode)
-{
-#if HAVE_KERNEL_SHARE_MODES
- int kernel_mode = 0;
- if (share_mode == FILE_SHARE_WRITE) {
- kernel_mode = LOCK_MAND|LOCK_WRITE;
- } else if (share_mode == FILE_SHARE_READ) {
- kernel_mode = LOCK_MAND|LOCK_READ;
- } else if (share_mode == FILE_SHARE_NONE) {
- kernel_mode = LOCK_MAND;
- }
- if (kernel_mode) {
- flock(fsp->fh->fd, kernel_mode);
- }
-#endif
- ;
-}
/****************************************************************************
On overwrite open ensure that the attributes match.
****************************************************************************/
static BOOL open_match_attributes(connection_struct *conn,
- const char *path,
- uint32 old_dos_attr,
- uint32 new_dos_attr,
- mode_t existing_unx_mode,
- mode_t new_unx_mode,
- mode_t *returned_unx_mode)
+ const char *path,
+ uint32 old_dos_attr,
+ uint32 new_dos_attr,
+ mode_t existing_unx_mode,
+ mode_t new_unx_mode,
+ mode_t *returned_unx_mode)
{
uint32 noarch_old_dos_attr, noarch_new_dos_attr;
****************************************************************************/
static files_struct *fcb_or_dos_open(connection_struct *conn,
- const char *fname, SMB_DEV_T dev,
- SMB_INO_T inode,
+ const char *fname,
+ struct file_id id,
uint32 access_mask,
uint32 share_access,
uint32 create_options)
DEBUG(5,("fcb_or_dos_open: attempting old open semantics for "
"file %s.\n", fname ));
- for(fsp = file_find_di_first(dev, inode); fsp;
+ for(fsp = file_find_di_first(id); fsp;
fsp = file_find_di_next(fsp)) {
DEBUG(10,("fcb_or_dos_open: checking file %s, fd = %d, "
}
/* We need to duplicate this fsp. */
- dup_fsp = dup_file_fsp(fsp, access_mask, share_access, create_options);
- if (!dup_fsp) {
+ if (!NT_STATUS_IS_OK(dup_file_fsp(fsp, access_mask, share_access,
+ create_options, &dup_fsp))) {
return NULL;
}
****************************************************************************/
BOOL map_open_params_to_ntcreate(const char *fname, int deny_mode, int open_func,
- uint32 *paccess_mask,
- uint32 *pshare_mode,
- uint32 *pcreate_disposition,
- uint32 *pcreate_options)
+ uint32 *paccess_mask,
+ uint32 *pshare_mode,
+ uint32 *pcreate_disposition,
+ uint32 *pcreate_options)
{
uint32 access_mask;
uint32 share_mode;
}
+static void schedule_defer_open(struct share_mode_lock *lck, struct timeval request_time)
+{
+ struct deferred_open_record state;
+
+ /* This is a relative time, added to the absolute
+ request_time value to get the absolute timeout time.
+ Note that if this is the second or greater time we enter
+ this codepath for this particular request mid then
+ request_time is left as the absolute time of the *first*
+ time this request mid was processed. This is what allows
+ the request to eventually time out. */
+
+ struct timeval timeout;
+
+ /* Normally the smbd we asked should respond within
+ * OPLOCK_BREAK_TIMEOUT seconds regardless of whether
+ * the client did, give twice the timeout as a safety
+ * measure here in case the other smbd is stuck
+ * somewhere else. */
+
+ timeout = timeval_set(OPLOCK_BREAK_TIMEOUT*2, 0);
+
+ /* Nothing actually uses state.delayed_for_oplocks
+ but it's handy to differentiate in debug messages
+ between a 30 second delay due to oplock break, and
+ a 1 second delay for share mode conflicts. */
+
+ state.delayed_for_oplocks = True;
+ state.id = lck->id;
+
+ if (!request_timed_out(request_time, timeout)) {
+ defer_open(lck, request_time, timeout, &state);
+ }
+}
+
/****************************************************************************
Open a file with a share mode.
****************************************************************************/
-files_struct *open_file_ntcreate(connection_struct *conn,
- const char *fname,
- SMB_STRUCT_STAT *psbuf,
- uint32 access_mask, /* access bits (FILE_READ_DATA etc.) */
- uint32 share_access, /* share constants (FILE_SHARE_READ etc). */
- uint32 create_disposition, /* FILE_OPEN_IF etc. */
- uint32 create_options, /* options such as delete on close. */
- uint32 new_dos_attributes, /* attributes used for new file. */
- int oplock_request, /* internal Samba oplock codes. */
- /* Information (FILE_EXISTS etc.) */
- int *pinfo)
+NTSTATUS open_file_ntcreate(connection_struct *conn,
+ const char *fname,
+ SMB_STRUCT_STAT *psbuf,
+ uint32 access_mask, /* access bits (FILE_READ_DATA etc.) */
+ uint32 share_access, /* share constants (FILE_SHARE_READ etc) */
+ uint32 create_disposition, /* FILE_OPEN_IF etc. */
+ uint32 create_options, /* options such as delete on close. */
+ uint32 new_dos_attributes, /* attributes used for new file. */
+ int oplock_request, /* internal Samba oplock codes. */
+ /* Information (FILE_EXISTS etc.) */
+ int *pinfo,
+ files_struct **result)
{
int flags=0;
int flags2=0;
BOOL file_existed = VALID_STAT(*psbuf);
BOOL def_acl = False;
- BOOL internal_only_open = False;
- SMB_DEV_T dev = 0;
- SMB_INO_T inode = 0;
- BOOL fsp_open = False;
+ BOOL posix_open = False;
+ BOOL new_file_created = False;
+ struct file_id id;
+ NTSTATUS fsp_open = NT_STATUS_ACCESS_DENIED;
files_struct *fsp = NULL;
mode_t new_unx_mode = (mode_t)0;
mode_t unx_mode = (mode_t)0;
uint32 existing_dos_attributes = 0;
struct pending_message_list *pml = NULL;
uint16 mid = get_current_mid();
- BOOL delayed_for_oplocks = False;
struct timeval request_time = timeval_zero();
struct share_mode_lock *lck = NULL;
+ uint32 open_access_mask = access_mask;
NTSTATUS status;
+ int ret_flock;
+ char *parent_dir;
+ const char *newname;
+
+ ZERO_STRUCT(id);
if (conn->printer) {
/*
DEBUG(10, ("open_file_ntcreate: printer open fname=%s\n", fname));
- return print_fsp_open(conn, fname);
+ return print_fsp_open(conn, fname, result);
}
- /* We add aARCH to this as this mode is only used if the file is
- * created new. */
- unx_mode = unix_mode(conn, new_dos_attributes | aARCH,fname, True);
+ if (!parent_dirname_talloc(tmp_talloc_ctx(), fname, &parent_dir,
+ &newname)) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (new_dos_attributes & FILE_FLAG_POSIX_SEMANTICS) {
+ posix_open = True;
+ unx_mode = (mode_t)(new_dos_attributes & ~FILE_FLAG_POSIX_SEMANTICS);
+ new_dos_attributes = 0;
+ } else {
+ /* We add aARCH to this as this mode is only used if the file is
+ * created new. */
+ unx_mode = unix_mode(conn, new_dos_attributes | aARCH, fname,
+ parent_dir);
+ }
DEBUG(10, ("open_file_ntcreate: fname=%s, dos_attrs=0x%x "
"access_mask=0x%x share_access=0x%x "
create_disposition, create_options, unx_mode,
oplock_request));
- if (oplock_request == INTERNAL_OPEN_ONLY) {
- internal_only_open = True;
- oplock_request = 0;
- }
-
if ((pml = get_open_deferred_message(mid)) != NULL) {
struct deferred_open_record *state =
(struct deferred_open_record *)pml->private_data.data;
see if this has timed out. */
request_time = pml->request_time;
- delayed_for_oplocks = state->delayed_for_oplocks;
/* Remove the deferred open entry under lock. */
- lck = get_share_mode_lock(NULL, state->dev, state->inode, NULL, NULL);
+ lck = get_share_mode_lock(NULL, state->id, NULL, NULL);
if (lck == NULL) {
DEBUG(0, ("could not get share mode lock\n"));
} else {
remove_deferred_open_smb_message(mid);
}
- if (!check_name(fname,conn)) {
- return NULL;
+ status = check_name(conn, fname);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
}
- new_dos_attributes &= SAMBA_ATTRIBUTES_MASK;
- if (file_existed) {
- existing_dos_attributes = dos_mode(conn, fname, psbuf);
+ if (!posix_open) {
+ new_dos_attributes &= SAMBA_ATTRIBUTES_MASK;
+ if (file_existed) {
+ existing_dos_attributes = dos_mode(conn, fname, psbuf);
+ }
}
/* ignore any oplock requests if oplocks are disabled */
if (!lp_oplocks(SNUM(conn)) || global_client_failed_oplock_break ||
IS_VETO_OPLOCK_PATH(conn, fname)) {
- oplock_request = 0;
+ /* Mask off everything except the private Samba bits. */
+ oplock_request &= SAMBA_PRIVATE_OPLOCK_MASK;
}
/* this is for OS/2 long file names - say we don't support them */
if (!lp_posix_pathnames() && strstr(fname,".+,;=[].")) {
/* OS/2 Workplace shell fix may be main code stream in a later
- * release. */
- set_saved_error_triple(ERRDOS, ERRcannotopen,
- NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ * release. */
DEBUG(5,("open_file_ntcreate: OS/2 long filenames are not "
"supported.\n"));
- return NULL;
+ if (use_nt_status()) {
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
+ return NT_STATUS_DOS(ERRDOS, ERRcannotopen);
}
switch( create_disposition ) {
DEBUG(5,("open_file_ntcreate: FILE_OPEN "
"requested for file %s and file "
"doesn't exist.\n", fname ));
- set_saved_ntstatus(NT_STATUS_OBJECT_NAME_NOT_FOUND);
errno = ENOENT;
- return NULL;
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
break;
DEBUG(5,("open_file_ntcreate: FILE_OVERWRITE "
"requested for file %s and file "
"doesn't exist.\n", fname ));
- set_saved_ntstatus(NT_STATUS_OBJECT_NAME_NOT_FOUND);
errno = ENOENT;
- return NULL;
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
flags2 |= O_TRUNC;
break;
} else {
errno = EEXIST;
}
- return NULL;
+ return map_nt_error_from_unix(errno);
}
flags2 |= (O_CREAT|O_EXCL);
break;
break;
default:
- set_saved_ntstatus(NT_STATUS_INVALID_PARAMETER);
- return NULL;
+ return NT_STATUS_INVALID_PARAMETER;
}
/* We only care about matching attributes on file exists and
* overwrite. */
- if (file_existed && ((create_disposition == FILE_OVERWRITE) ||
+ if (!posix_open && file_existed && ((create_disposition == FILE_OVERWRITE) ||
(create_disposition == FILE_OVERWRITE_IF))) {
if (!open_match_attributes(conn, fname,
existing_dos_attributes,
(unsigned int)psbuf->st_mode,
(unsigned int)unx_mode ));
errno = EACCES;
- return NULL;
+ return NT_STATUS_ACCESS_DENIED;
}
}
/* This is a nasty hack - must fix... JRA. */
if (access_mask == MAXIMUM_ALLOWED_ACCESS) {
- access_mask = FILE_GENERIC_ALL;
+ open_access_mask = access_mask = FILE_GENERIC_ALL;
}
/*
*/
se_map_generic(&access_mask, &file_generic_mapping);
+ open_access_mask = access_mask;
+
+ if (flags2 & O_TRUNC) {
+ open_access_mask |= FILE_WRITE_DATA; /* This will cause oplock breaks. */
+ }
DEBUG(10, ("open_file_ntcreate: fname=%s, after mapping "
"access_mask=0x%x\n", fname, access_mask ));
*/
if (access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) {
- flags = O_RDWR;
+ /* DENY_DOS opens are always underlying read-write on the
+ file handle, no matter what the requested access mask
+ says. */
+ if ((create_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS) ||
+ access_mask & (FILE_READ_ATTRIBUTES|FILE_READ_DATA|FILE_READ_EA|FILE_EXECUTE)) {
+ flags = O_RDWR;
+ } else {
+ flags = O_WRONLY;
+ }
} else {
flags = O_RDONLY;
}
*/
#if defined(O_SYNC)
- if (create_options & FILE_WRITE_THROUGH) {
+ if ((create_options & FILE_WRITE_THROUGH) && lp_strict_sync(SNUM(conn))) {
flags2 |= O_SYNC;
}
#endif /* O_SYNC */
- if (!CAN_WRITE(conn)) {
+ if (posix_open & (access_mask & FILE_APPEND_DATA)) {
+ flags2 |= O_APPEND;
+ }
+
+ if (!posix_open && !CAN_WRITE(conn)) {
/*
* We should really return a permission denied error if either
* O_CREAT or O_TRUNC are set, but for compatibility with
DEBUG(5,("open_file_ntcreate: write access requested for "
"file %s on read only %s\n",
fname, !CAN_WRITE(conn) ? "share" : "file" ));
- set_saved_ntstatus(NT_STATUS_ACCESS_DENIED);
errno = EACCES;
- return NULL;
+ return NT_STATUS_ACCESS_DENIED;
}
- fsp = file_new(conn);
- if(!fsp) {
- return NULL;
+ status = file_new(conn, &fsp);
+ if(!NT_STATUS_IS_OK(status)) {
+ return status;
}
- fsp->dev = psbuf->st_dev;
- fsp->inode = psbuf->st_ino;
+ fsp->file_id = file_id_sbuf(psbuf);
fsp->share_access = share_access;
fsp->fh->private_options = create_options;
- fsp->access_mask = access_mask;
- fsp->oplock_type = oplock_request;
+ fsp->access_mask = open_access_mask; /* We change this to the
+ * requested access_mask after
+ * the open is done. */
+ fsp->posix_open = posix_open;
+
+ /* Ensure no SAMBA_PRIVATE bits can be set. */
+ fsp->oplock_type = (oplock_request & ~SAMBA_PRIVATE_OPLOCK_MASK);
if (timeval_is_zero(&request_time)) {
request_time = fsp->open_time;
}
if (file_existed) {
+ id = file_id_sbuf(psbuf);
- dev = psbuf->st_dev;
- inode = psbuf->st_ino;
-
- lck = get_share_mode_lock(NULL, dev, inode,
- conn->connectpath,
- fname);
+ lck = get_share_mode_lock(NULL, id,
+ conn->connectpath,
+ fname);
if (lck == NULL) {
+ file_free(fsp);
DEBUG(0, ("Could not get share mode lock\n"));
- set_saved_ntstatus(NT_STATUS_SHARING_VIOLATION);
- return NULL;
+ return NT_STATUS_SHARING_VIOLATION;
}
- if (delay_for_oplocks(lck, fsp)) {
- struct deferred_open_record state;
-
- /* This is a relative time, added to the absolute
- request_time value to get the absolute timeout time.
- Note that if this is the second or greater time we enter
- this codepath for this particular request mid then
- request_time is left as the absolute time of the *first*
- time this request mid was processed. This is what allows
- the request to eventually time out. */
-
- struct timeval timeout;
-
- /* Normally the smbd we asked should respond within
- * OPLOCK_BREAK_TIMEOUT seconds regardless of whether
- * the client did, give twice the timeout as a safety
- * measure here in case the other smbd is stuck
- * somewhere else. */
-
- timeout = timeval_set(OPLOCK_BREAK_TIMEOUT*2, 0);
-
- /* Nothing actually uses state.delayed_for_oplocks
- but it's handy to differentiate in debug messages
- between a 30 second delay due to oplock break, and
- a 1 second delay for share mode conflicts. */
-
- state.delayed_for_oplocks = True;
- state.dev = dev;
- state.inode = inode;
-
- if (!request_timed_out(request_time, timeout)) {
- defer_open(lck, request_time, timeout,
- &state);
- }
-
+ /* First pass - send break only on batch oplocks. */
+ if (delay_for_oplocks(lck, fsp, 1, oplock_request)) {
+ schedule_defer_open(lck, request_time);
TALLOC_FREE(lck);
- return NULL;
+ file_free(fsp);
+ return NT_STATUS_SHARING_VIOLATION;
}
+ /* Use the client requested access mask here, not the one we
+ * open with. */
status = open_mode_check(conn, fname, lck,
access_mask, share_access,
create_options, &file_existed);
+ if (NT_STATUS_IS_OK(status)) {
+ /* We might be going to allow this open. Check oplock
+ * status again. */
+ /* Second pass - send break for both batch or
+ * exclusive oplocks. */
+ if (delay_for_oplocks(lck, fsp, 2, oplock_request)) {
+ schedule_defer_open(lck, request_time);
+ TALLOC_FREE(lck);
+ file_free(fsp);
+ return NT_STATUS_SHARING_VIOLATION;
+ }
+ }
+
if (NT_STATUS_EQUAL(status, NT_STATUS_DELETE_PENDING)) {
/* DELETE_PENDING is not deferred for a second */
- set_saved_ntstatus(status);
TALLOC_FREE(lck);
file_free(fsp);
- return NULL;
+ return status;
}
if (!NT_STATUS_IS_OK(status)) {
+ uint32 can_access_mask;
+ BOOL can_access = True;
SMB_ASSERT(NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION));
(NTCREATEX_OPTIONS_PRIVATE_DENY_DOS|
NTCREATEX_OPTIONS_PRIVATE_DENY_FCB)) {
files_struct *fsp_dup;
- fsp_dup = fcb_or_dos_open(conn, fname, dev,
- inode, access_mask,
+
+ /* Use the client requested access mask here,
+ * not the one we open with. */
+ fsp_dup = fcb_or_dos_open(conn, fname, id,
+ access_mask,
share_access,
create_options);
*pinfo = FILE_WAS_OPENED;
}
conn->num_files_open++;
- return fsp_dup;
+ *result = fsp_dup;
+ return NT_STATUS_OK;
}
}
* MS-Access. If a file open will fail due to share
* permissions and also for security (access) reasons,
* we need to return the access failed error, not the
- * share error. This means we must attempt to open the
- * file anyway in order to get the UNIX access error -
- * even if we're going to fail the open for share
- * reasons. This is bad, as we're burning another fd
- * if there are existing locks but there's nothing
- * else we can do. We also ensure we're not going to
- * create or tuncate the file as we only want an
- * access decision at this stage. JRA.
+ * share error. We can't open the file due to kernel
+ * oplock deadlock (it's possible we failed above on
+ * the open_mode_check()) so use a userspace check.
*/
- errno = 0;
- fsp_open = open_file(fsp,conn,fname,psbuf,
- flags|(flags2&~(O_TRUNC|O_CREAT)),
- unx_mode,access_mask);
-
- DEBUG(4,("open_file_ntcreate : share_mode deny - "
- "calling open_file with flags=0x%X "
- "flags2=0x%X mode=0%o returned %d\n",
- flags, (flags2&~(O_TRUNC|O_CREAT)),
- (unsigned int)unx_mode, (int)fsp_open ));
-
- if (!fsp_open && errno) {
- /* Default error. */
- set_saved_ntstatus(NT_STATUS_ACCESS_DENIED);
+
+ if (flags & O_RDWR) {
+ can_access_mask = FILE_READ_DATA|FILE_WRITE_DATA;
+ } else if (flags & O_WRONLY) {
+ can_access_mask = FILE_WRITE_DATA;
+ } else {
+ can_access_mask = FILE_READ_DATA;
+ }
+
+ if (((can_access_mask & FILE_WRITE_DATA) && !CAN_WRITE(conn)) ||
+ !can_access_file(conn,fname,psbuf,can_access_mask)) {
+ can_access = False;
}
/*
* cope with the braindead 1 second delay.
*/
- if (!internal_only_open &&
+ if (!(oplock_request & INTERNAL_OPEN_ONLY) &&
lp_defer_sharing_violations()) {
struct timeval timeout;
struct deferred_open_record state;
/* this is a hack to speed up torture tests
in 'make test' */
- timeout_usecs = lp_parm_int(conn->service,
+ timeout_usecs = lp_parm_int(SNUM(conn),
"smbd","sharedelay",
SHARING_VIOLATION_USEC_WAIT);
a 1 second delay for share mode conflicts. */
state.delayed_for_oplocks = False;
- state.dev = dev;
- state.inode = inode;
+ state.id = id;
if (!request_timed_out(request_time,
timeout)) {
}
TALLOC_FREE(lck);
- if (fsp_open) {
- fd_close(conn, fsp);
+ if (can_access) {
/*
* We have detected a sharing violation here
* so return the correct error code
*/
- set_saved_ntstatus(NT_STATUS_SHARING_VIOLATION);
+ status = NT_STATUS_SHARING_VIOLATION;
+ } else {
+ status = NT_STATUS_ACCESS_DENIED;
}
file_free(fsp);
- return NULL;
+ return status;
}
/*
*/
if ((flags2 & O_CREAT) && lp_inherit_acls(SNUM(conn)) &&
- (def_acl = directory_has_default_acl(conn,
- parent_dirname(fname)))) {
+ (def_acl = directory_has_default_acl(conn, parent_dir))) {
unx_mode = 0777;
}
- DEBUG(4,("calling open_file with flags=0x%X flags2=0x%X mode=0%o\n",
+ DEBUG(4,("calling open_file with flags=0x%X flags2=0x%X mode=0%o, "
+ "access_mask = 0x%x, open_access_mask = 0x%x\n",
(unsigned int)flags, (unsigned int)flags2,
- (unsigned int)unx_mode));
+ (unsigned int)unx_mode, (unsigned int)access_mask,
+ (unsigned int)open_access_mask));
/*
* open_file strips any O_TRUNC flags itself.
*/
- fsp_open = open_file(fsp,conn,fname,psbuf,flags|flags2,unx_mode,
- access_mask);
+ fsp_open = open_file(fsp, conn, parent_dir, newname, fname, psbuf,
+ flags|flags2, unx_mode, access_mask,
+ open_access_mask);
- if (!fsp_open) {
+ if (!NT_STATUS_IS_OK(fsp_open)) {
if (lck != NULL) {
TALLOC_FREE(lck);
}
file_free(fsp);
- return NULL;
+ return fsp_open;
}
- if (!file_existed) {
+ if (!file_existed) {
/*
* Deal with the race condition where two smbd's detect the
* Nadav Danieli <nadavd@exanet.com>. JRA.
*/
- dev = fsp->dev;
- inode = fsp->inode;
+ id = fsp->file_id;
- lck = get_share_mode_lock(NULL, dev, inode,
- conn->connectpath,
- fname);
+ lck = get_share_mode_lock(NULL, id,
+ conn->connectpath,
+ fname);
if (lck == NULL) {
- DEBUG(0, ("open_file_ntcreate: Could not get share mode lock for %s\n", fname));
+ DEBUG(0, ("open_file_ntcreate: Could not get share "
+ "mode lock for %s\n", fname));
+ fd_close(conn, fsp);
+ file_free(fsp);
+ return NT_STATUS_SHARING_VIOLATION;
+ }
+
+ /* First pass - send break only on batch oplocks. */
+ if (delay_for_oplocks(lck, fsp, 1, oplock_request)) {
+ schedule_defer_open(lck, request_time);
+ TALLOC_FREE(lck);
fd_close(conn, fsp);
file_free(fsp);
- set_saved_ntstatus(NT_STATUS_SHARING_VIOLATION);
- return NULL;
+ return NT_STATUS_SHARING_VIOLATION;
}
status = open_mode_check(conn, fname, lck,
access_mask, share_access,
create_options, &file_existed);
+ if (NT_STATUS_IS_OK(status)) {
+ /* We might be going to allow this open. Check oplock
+ * status again. */
+ /* Second pass - send break for both batch or
+ * exclusive oplocks. */
+ if (delay_for_oplocks(lck, fsp, 2, oplock_request)) {
+ schedule_defer_open(lck, request_time);
+ TALLOC_FREE(lck);
+ fd_close(conn, fsp);
+ file_free(fsp);
+ return NT_STATUS_SHARING_VIOLATION;
+ }
+ }
+
if (!NT_STATUS_IS_OK(status)) {
struct deferred_open_record state;
file_free(fsp);
state.delayed_for_oplocks = False;
- state.dev = dev;
- state.inode = inode;
+ state.id = id;
/* Do it all over again immediately. In the second
* round we will find that the file existed and handle
defer_open(lck, request_time, timeval_zero(),
&state);
TALLOC_FREE(lck);
- return NULL;
+ return status;
}
/*
* We exit this block with the share entry *locked*.....
*/
+
}
SMB_ASSERT(lck != NULL);
these only read them. Nobody but Samba can ever set a deny
mode and we have already checked our more authoritative
locking database for permission to set this deny mode. If
- the kernel refuses the operations then the kernel is wrong */
+ the kernel refuses the operations then the kernel is wrong.
+ note that GPFS supports it as well - jmcd */
- kernel_flock(fsp, share_access);
+ ret_flock = SMB_VFS_KERNEL_FLOCK(fsp, fsp->fh->fd, share_access);
+ if(ret_flock == -1 ){
+
+ TALLOC_FREE(lck);
+ fd_close(conn, fsp);
+ file_free(fsp);
+
+ return NT_STATUS_SHARING_VIOLATION;
+ }
/*
* At this point onwards, we can guarentee that the share entry
*/
if ((SMB_VFS_FTRUNCATE(fsp,fsp->fh->fd,0) == -1) ||
(SMB_VFS_FSTAT(fsp,fsp->fh->fd,psbuf)==-1)) {
+ status = map_nt_error_from_unix(errno);
TALLOC_FREE(lck);
fd_close(conn,fsp);
file_free(fsp);
- return NULL;
+ return status;
}
}
fsp->access_mask = access_mask;
if (file_existed) {
+ /* stat opens on existing files don't get oplocks. */
+ if (is_stat_open(open_access_mask)) {
+ fsp->oplock_type = NO_OPLOCK;
+ }
+
if (!(flags2 & O_TRUNC)) {
info = FILE_WAS_OPENED;
} else {
}
} else {
info = FILE_WAS_CREATED;
- /* Change the owner if required. */
- if (lp_inherit_owner(SNUM(conn))) {
- change_owner_to_parent(conn, fsp, fsp->fsp_name,
- psbuf);
- }
}
if (pinfo) {
fsp->oplock_type = NO_OPLOCK;
}
}
- set_share_mode(lck, fsp, 0, fsp->oplock_type);
- if (info == FILE_WAS_OVERWRITTEN || info == FILE_WAS_CREATED ||
- info == FILE_WAS_SUPERSEDED) {
+ if (info == FILE_WAS_OVERWRITTEN || info == FILE_WAS_CREATED || info == FILE_WAS_SUPERSEDED) {
+ new_file_created = True;
+ }
- /* Handle strange delete on close create semantics. */
- if (create_options & FILE_DELETE_ON_CLOSE) {
- NTSTATUS result = can_set_delete_on_close(fsp, True, new_dos_attributes);
+ set_share_mode(lck, fsp, current_user.ut.uid, 0, fsp->oplock_type, new_file_created);
- if (!NT_STATUS_IS_OK(result)) {
- /* Remember to delete the mode we just added. */
- del_share_mode(lck, fsp);
- TALLOC_FREE(lck);
- fd_close(conn,fsp);
- file_free(fsp);
- set_saved_ntstatus(result);
- return NULL;
- }
- /* Note that here we set the *inital* delete on close flag,
- not the regular one. */
- set_delete_on_close_token(lck, ¤t_user.ut);
- lck->initial_delete_on_close = True;
- lck->modified = True;
+ /* Handle strange delete on close create semantics. */
+ if ((create_options & FILE_DELETE_ON_CLOSE) && can_set_initial_delete_on_close(lck)) {
+ status = can_set_delete_on_close(fsp, True, new_dos_attributes);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ /* Remember to delete the mode we just added. */
+ del_share_mode(lck, fsp);
+ TALLOC_FREE(lck);
+ fd_close(conn,fsp);
+ file_free(fsp);
+ return status;
}
+ /* Note that here we set the *inital* delete on close flag,
+ not the regular one. The magic gets handled in close. */
+ fsp->initial_delete_on_close = True;
+ }
+ if (new_file_created) {
/* Files should be initially set as archive */
if (lp_map_archive(SNUM(conn)) ||
lp_store_dos_attributes(SNUM(conn))) {
- file_set_dosmode(conn, fname,
+ if (!posix_open) {
+ file_set_dosmode(conn, fname,
new_dos_attributes | aARCH, NULL,
- True);
+ parent_dir);
+ }
}
}
* selected.
*/
- if (!file_existed && !def_acl) {
+ if (!posix_open && !file_existed && !def_acl) {
int saved_errno = errno; /* We might get ENOSYS in the next
* call.. */
- if (SMB_VFS_FCHMOD_ACL(fsp, fsp->fh->fd, unx_mode) == -1
- && errno == ENOSYS) {
+ if (SMB_VFS_FCHMOD_ACL(fsp, fsp->fh->fd, unx_mode) == -1 &&
+ errno == ENOSYS) {
errno = saved_errno; /* Ignore ENOSYS */
}
if (ret == -1 && errno == ENOSYS) {
errno = saved_errno; /* Ignore ENOSYS */
} else {
- DEBUG(5, ("open_file_shared: reset "
+ DEBUG(5, ("open_file_ntcreate: reset "
"attributes of file %s to 0%o\n",
- fname, (unsigned int)new_unx_mode));
+ fname, (unsigned int)new_unx_mode));
ret = 0; /* Don't do the fchmod below. */
}
}
if ((ret == -1) &&
(SMB_VFS_FCHMOD(fsp, fsp->fh->fd, new_unx_mode) == -1))
- DEBUG(5, ("open_file_shared: failed to reset "
+ DEBUG(5, ("open_file_ntcreate: failed to reset "
"attributes of file %s to 0%o\n",
- fname, (unsigned int)new_unx_mode));
+ fname, (unsigned int)new_unx_mode));
}
/* If this is a successful open, we must remove any deferred open
conn->num_files_open++;
- return fsp;
+ *result = fsp;
+ return NT_STATUS_OK;
}
/****************************************************************************
Open a file for for write to ensure that we can fchmod it.
****************************************************************************/
-files_struct *open_file_fchmod(connection_struct *conn, const char *fname,
- SMB_STRUCT_STAT *psbuf)
+NTSTATUS open_file_fchmod(connection_struct *conn, const char *fname,
+ SMB_STRUCT_STAT *psbuf, files_struct **result)
{
files_struct *fsp = NULL;
- BOOL fsp_open;
+ NTSTATUS status;
if (!VALID_STAT(*psbuf)) {
- return NULL;
+ return NT_STATUS_INVALID_PARAMETER;
}
- fsp = file_new(conn);
- if(!fsp) {
- return NULL;
+ status = file_new(conn, &fsp);
+ if(!NT_STATUS_IS_OK(status)) {
+ return status;
}
/* note! we must use a non-zero desired access or we don't get
a real file descriptor. Oh what a twisted web we weave. */
- fsp_open = open_file(fsp,conn,fname,psbuf,O_WRONLY,0,FILE_WRITE_DATA);
+ status = open_file(fsp, conn, NULL, NULL, fname, psbuf, O_WRONLY, 0,
+ FILE_WRITE_DATA, FILE_WRITE_DATA);
/*
* This is not a user visible file open.
* the conn->num_files_open.
*/
- if (!fsp_open) {
+ if (!NT_STATUS_IS_OK(status)) {
file_free(fsp);
- return NULL;
+ return status;
}
- return fsp;
+ *result = fsp;
+ return NT_STATUS_OK;
}
/****************************************************************************
Close the fchmod file fd - ensure no locks are lost.
****************************************************************************/
-int close_file_fchmod(files_struct *fsp)
+NTSTATUS close_file_fchmod(files_struct *fsp)
{
- int ret = fd_close(fsp->conn, fsp);
+ NTSTATUS status = fd_close(fsp->conn, fsp);
file_free(fsp);
- return ret;
+ return status;
+}
+
+static NTSTATUS mkdir_internal(connection_struct *conn,
+ const char *name,
+ uint32 file_attributes,
+ SMB_STRUCT_STAT *psbuf)
+{
+ mode_t mode;
+ char *parent_dir;
+ const char *dirname;
+ NTSTATUS status;
+
+ if(!CAN_WRITE(conn)) {
+ DEBUG(5,("mkdir_internal: failing create on read-only share "
+ "%s\n", lp_servicename(SNUM(conn))));
+ return NT_STATUS_ACCESS_DENIED;
+ }
+
+ status = check_name(conn, name);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ if (!parent_dirname_talloc(tmp_talloc_ctx(), name, &parent_dir,
+ &dirname)) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
+ mode = (mode_t)(file_attributes & ~FILE_FLAG_POSIX_SEMANTICS);
+ } else {
+ mode = unix_mode(conn, aDIR, name, parent_dir);
+ }
+
+ if (SMB_VFS_MKDIR(conn, name, mode) != 0) {
+ return map_nt_error_from_unix(errno);
+ }
+
+ /* Ensure we're checking for a symlink here.... */
+ /* We don't want to get caught by a symlink racer. */
+
+ if (SMB_VFS_LSTAT(conn, name, psbuf) == -1) {
+ DEBUG(2, ("Could not stat directory '%s' just created: %s\n",
+ name, strerror(errno)));
+ return map_nt_error_from_unix(errno);
+ }
+
+ if (!S_ISDIR(psbuf->st_mode)) {
+ DEBUG(0, ("Directory just '%s' created is not a directory\n",
+ name));
+ return NT_STATUS_ACCESS_DENIED;
+ }
+
+ if (lp_inherit_perms(SNUM(conn))) {
+ inherit_access_acl(conn, parent_dir, name, mode);
+ }
+
+ if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS)) {
+ /*
+ * Check if high bits should have been set,
+ * then (if bits are missing): add them.
+ * Consider bits automagically set by UNIX, i.e. SGID bit from parent
+ * dir.
+ */
+ if (mode & ~(S_IRWXU|S_IRWXG|S_IRWXO) && (mode & ~psbuf->st_mode)) {
+ SMB_VFS_CHMOD(conn, name,
+ psbuf->st_mode | (mode & ~psbuf->st_mode));
+ }
+ }
+
+ /* Change the owner if required. */
+ if (lp_inherit_owner(SNUM(conn))) {
+ change_dir_owner_to_parent(conn, parent_dir, name, psbuf);
+ }
+
+ notify_fname(conn, NOTIFY_ACTION_ADDED, FILE_NOTIFY_CHANGE_DIR_NAME,
+ name);
+
+ return NT_STATUS_OK;
}
/****************************************************************************
Open a directory from an NT SMB call.
****************************************************************************/
-files_struct *open_directory(connection_struct *conn,
- const char *fname,
- SMB_STRUCT_STAT *psbuf,
- uint32 access_mask,
- uint32 share_access,
- uint32 create_disposition,
- uint32 create_options,
- int *pinfo)
+NTSTATUS open_directory(connection_struct *conn,
+ const char *fname,
+ SMB_STRUCT_STAT *psbuf,
+ uint32 access_mask,
+ uint32 share_access,
+ uint32 create_disposition,
+ uint32 create_options,
+ uint32 file_attributes,
+ int *pinfo,
+ files_struct **result)
{
files_struct *fsp = NULL;
BOOL dir_existed = VALID_STAT(*psbuf) ? True : False;
- BOOL create_dir = False;
struct share_mode_lock *lck = NULL;
NTSTATUS status;
int info = 0;
DEBUG(5,("open_directory: opening directory %s, access_mask = 0x%x, "
"share_access = 0x%x create_options = 0x%x, "
- "create_disposition = 0x%x\n",
+ "create_disposition = 0x%x, file_attributes = 0x%x\n",
fname,
(unsigned int)access_mask,
(unsigned int)share_access,
(unsigned int)create_options,
- (unsigned int)create_disposition));
+ (unsigned int)create_disposition,
+ (unsigned int)file_attributes));
if (is_ntfs_stream_name(fname)) {
DEBUG(0,("open_directory: %s is a stream name!\n", fname ));
- set_saved_ntstatus(NT_STATUS_NOT_A_DIRECTORY);
- return NULL;
+ return NT_STATUS_NOT_A_DIRECTORY;
}
switch( create_disposition ) {
case FILE_OPEN:
- /* If directory exists open. If directory doesn't
- * exist error. */
- if (!dir_existed) {
- DEBUG(5,("open_directory: FILE_OPEN requested "
- "for directory %s and it doesn't "
- "exist.\n", fname ));
- set_saved_ntstatus(NT_STATUS_OBJECT_NAME_NOT_FOUND);
- return NULL;
- }
+
info = FILE_WAS_OPENED;
+
+ /*
+ * We want to follow symlinks here.
+ */
+
+ if (SMB_VFS_STAT(conn, fname, psbuf) != 0) {
+ return map_nt_error_from_unix(errno);
+ }
+
break;
case FILE_CREATE:
+
/* If directory exists error. If directory doesn't
* exist create. */
- if (dir_existed) {
- DEBUG(5,("open_directory: FILE_CREATE "
- "requested for directory %s and it "
- "already exists.\n", fname ));
- set_saved_error_triple(ERRDOS, ERRfilexists,
- NT_STATUS_OBJECT_NAME_COLLISION);
- return NULL;
+
+ status = mkdir_internal(conn,
+ fname,
+ file_attributes,
+ psbuf);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(2, ("open_directory: unable to create "
+ "%s. Error was %s\n", fname,
+ nt_errstr(status)));
+ return status;
}
- create_dir = True;
+
info = FILE_WAS_CREATED;
break;
case FILE_OPEN_IF:
- /* If directory exists open. If directory doesn't
- * exist create. */
- if (!dir_existed) {
- create_dir = True;
+ /*
+ * If directory exists open. If directory doesn't
+ * exist create.
+ */
+
+ status = mkdir_internal(conn,
+ fname,
+ file_attributes,
+ psbuf);
+
+ if (NT_STATUS_IS_OK(status)) {
info = FILE_WAS_CREATED;
- } else {
+ }
+
+ if (NT_STATUS_EQUAL(status,
+ NT_STATUS_OBJECT_NAME_COLLISION)) {
info = FILE_WAS_OPENED;
+ status = NT_STATUS_OK;
}
+
break;
case FILE_SUPERSEDE:
DEBUG(5,("open_directory: invalid create_disposition "
"0x%x for directory %s\n",
(unsigned int)create_disposition, fname));
- file_free(fsp);
- set_saved_ntstatus(NT_STATUS_INVALID_PARAMETER);
- return NULL;
+ return NT_STATUS_INVALID_PARAMETER;
}
- if (create_dir) {
- /*
- * Try and create the directory.
- */
-
- /* We know bad_path is false as it's caught earlier. */
-
- status = mkdir_internal(conn, fname, False);
-
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(2,("open_directory: unable to create %s. "
- "Error was %s\n", fname, strerror(errno) ));
- /* Ensure we return the correct NT status to the
- * client. */
- set_saved_error_triple(0, 0, status);
- return NULL;
- }
-
- /* Ensure we're checking for a symlink here.... */
- /* We don't want to get caught by a symlink racer. */
-
- if(SMB_VFS_LSTAT(conn,fname, psbuf) != 0) {
- return NULL;
- }
-
- if(!S_ISDIR(psbuf->st_mode)) {
- DEBUG(0,("open_directory: %s is not a directory !\n",
- fname ));
- return NULL;
- }
+ if(!S_ISDIR(psbuf->st_mode)) {
+ DEBUG(5,("open_directory: %s is not a directory !\n",
+ fname ));
+ return NT_STATUS_NOT_A_DIRECTORY;
}
- fsp = file_new(conn);
- if(!fsp) {
- return NULL;
+ status = file_new(conn, &fsp);
+ if(!NT_STATUS_IS_OK(status)) {
+ return status;
}
/*
*/
fsp->mode = psbuf->st_mode;
- fsp->inode = psbuf->st_ino;
- fsp->dev = psbuf->st_dev;
+ fsp->file_id = file_id_sbuf(psbuf);
fsp->vuid = current_user.vuid;
fsp->file_pid = global_smbpid;
- fsp->can_lock = True;
+ fsp->can_lock = False;
fsp->can_read = False;
fsp->can_write = False;
fsp->sent_oplock_break = NO_BREAK_SENT;
fsp->is_directory = True;
fsp->is_stat = False;
+ fsp->posix_open = (file_attributes & FILE_FLAG_POSIX_SEMANTICS) ? True : False;
+
string_set(&fsp->fsp_name,fname);
- lck = get_share_mode_lock(NULL, fsp->dev, fsp->inode,
- conn->connectpath,
- fname);
+ lck = get_share_mode_lock(NULL, fsp->file_id,
+ conn->connectpath,
+ fname);
if (lck == NULL) {
DEBUG(0, ("open_directory: Could not get share mode lock for %s\n", fname));
file_free(fsp);
- set_saved_ntstatus(NT_STATUS_SHARING_VIOLATION);
- return NULL;
+ return NT_STATUS_SHARING_VIOLATION;
}
status = open_mode_check(conn, fname, lck,
create_options, &dir_existed);
if (!NT_STATUS_IS_OK(status)) {
- set_saved_ntstatus(status);
TALLOC_FREE(lck);
file_free(fsp);
- return NULL;
+ return status;
}
- set_share_mode(lck, fsp, 0, NO_OPLOCK);
+ set_share_mode(lck, fsp, current_user.ut.uid, 0, NO_OPLOCK, True);
/* For directories the delete on close bit at open time seems
always to be honored on close... See test 19 in Samba4 BASE-DELETE. */
if (create_options & FILE_DELETE_ON_CLOSE) {
status = can_set_delete_on_close(fsp, True, 0);
- if (!NT_STATUS_IS_OK(status)) {
- set_saved_ntstatus(status);
+ if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status, NT_STATUS_DIRECTORY_NOT_EMPTY)) {
TALLOC_FREE(lck);
file_free(fsp);
- return NULL;
+ return status;
}
- set_delete_on_close_token(lck, ¤t_user.ut);
- lck->initial_delete_on_close = True;
- lck->modified = True;
+ if (NT_STATUS_IS_OK(status)) {
+ /* Note that here we set the *inital* delete on close flag,
+ not the regular one. The magic gets handled in close. */
+ fsp->initial_delete_on_close = True;
+ }
}
TALLOC_FREE(lck);
- /* Change the owner if required. */
- if ((info == FILE_WAS_CREATED) && lp_inherit_owner(SNUM(conn))) {
- change_owner_to_parent(conn, fsp, fsp->fsp_name, psbuf);
- }
-
if (pinfo) {
*pinfo = info;
}
conn->num_files_open++;
- return fsp;
+ *result = fsp;
+ return NT_STATUS_OK;
+}
+
+NTSTATUS create_directory(connection_struct *conn, const char *directory)
+{
+ NTSTATUS status;
+ SMB_STRUCT_STAT sbuf;
+ files_struct *fsp;
+
+ SET_STAT_INVALID(sbuf);
+
+ status = open_directory(conn, directory, &sbuf,
+ FILE_READ_ATTRIBUTES, /* Just a stat open */
+ FILE_SHARE_NONE, /* Ignored for stat opens */
+ FILE_CREATE,
+ 0,
+ FILE_ATTRIBUTE_DIRECTORY,
+ NULL,
+ &fsp);
+
+ if (NT_STATUS_IS_OK(status)) {
+ close_file(fsp, NORMAL_CLOSE);
+ }
+
+ return status;
}
/****************************************************************************
Open a pseudo-file (no locking checks - a 'stat' open).
****************************************************************************/
-files_struct *open_file_stat(connection_struct *conn, char *fname,
- SMB_STRUCT_STAT *psbuf)
+NTSTATUS open_file_stat(connection_struct *conn, const char *fname,
+ SMB_STRUCT_STAT *psbuf, files_struct **result)
{
files_struct *fsp = NULL;
+ NTSTATUS status;
- if (!VALID_STAT(*psbuf))
- return NULL;
+ if (!VALID_STAT(*psbuf)) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
/* Can't 'stat' open directories. */
- if(S_ISDIR(psbuf->st_mode))
- return NULL;
+ if(S_ISDIR(psbuf->st_mode)) {
+ return NT_STATUS_FILE_IS_A_DIRECTORY;
+ }
- fsp = file_new(conn);
- if(!fsp)
- return NULL;
+ status = file_new(conn, &fsp);
+ if(!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
DEBUG(5,("open_file_stat: 'opening' file %s\n", fname));
*/
fsp->mode = psbuf->st_mode;
- fsp->inode = psbuf->st_ino;
- fsp->dev = psbuf->st_dev;
+ fsp->file_id = file_id_sbuf(psbuf);
fsp->vuid = current_user.vuid;
fsp->file_pid = global_smbpid;
fsp->can_lock = False;
conn->num_files_open++;
- return fsp;
+ *result = fsp;
+ return NT_STATUS_OK;
}
/****************************************************************************
smbd process.
****************************************************************************/
-void msg_file_was_renamed(int msg_type, struct process_id src, void *buf, size_t len)
+void msg_file_was_renamed(struct messaging_context *msg,
+ void *private_data,
+ uint32_t msg_type,
+ struct server_id server_id,
+ DATA_BLOB *data)
{
files_struct *fsp;
- char *frm = (char *)buf;
- SMB_DEV_T dev;
- SMB_INO_T inode;
+ char *frm = (char *)data->data;
+ struct file_id id;
const char *sharepath;
const char *newname;
size_t sp_len;
- if (buf == NULL || len < MSG_FILE_RENAMED_MIN_SIZE + 2) {
- DEBUG(0, ("msg_file_was_renamed: Got invalid msg len %d\n", (int)len));
+ if (data->data == NULL
+ || data->length < MSG_FILE_RENAMED_MIN_SIZE + 2) {
+ DEBUG(0, ("msg_file_was_renamed: Got invalid msg len %d\n",
+ (int)data->length));
return;
}
/* Unpack the message. */
- dev = DEV_T_VAL(frm,0);
- inode = INO_T_VAL(frm,8);
+ pull_file_id_16(frm, &id);
sharepath = &frm[16];
newname = sharepath + strlen(sharepath) + 1;
sp_len = strlen(sharepath);
DEBUG(10,("msg_file_was_renamed: Got rename message for sharepath %s, new name %s, "
- "dev %x, inode %.0f\n",
- sharepath, newname, (unsigned int)dev, (double)inode ));
+ "file_id %s\n",
+ sharepath, newname, file_id_static_string(&id)));
- for(fsp = file_find_di_first(dev, inode); fsp; fsp = file_find_di_next(fsp)) {
+ for(fsp = file_find_di_first(id); fsp; fsp = file_find_di_next(fsp)) {
if (memcmp(fsp->conn->connectpath, sharepath, sp_len) == 0) {
DEBUG(10,("msg_file_was_renamed: renaming file fnum %d from %s -> %s\n",
fsp->fnum, fsp->fsp_name, newname ));
git.samba.org / sfrench / samba-autobuild / .git / blobdiff