file opening and share modes
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) Jeremy Allison 2001-2004
+ Copyright (C) Volker Lendecke 2005
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include "includes.h"
+extern struct generic_mapping file_generic_mapping;
+extern struct current_user current_user;
extern userdom_struct current_user_info;
-extern uint16 global_oplock_port;
extern uint16 global_smbpid;
extern BOOL global_client_failed_oplock_break;
-struct dev_inode_bundle {
+struct deferred_open_record {
+ BOOL delayed_for_oplocks;
SMB_DEV_T dev;
SMB_INO_T inode;
};
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 BOOL fd_open(struct connection_struct *conn,
+ const char *fname,
+ files_struct *fsp,
+ int flags,
+ mode_t mode)
{
- int fd;
+ int sav;
+
#ifdef O_NOFOLLOW
- if (!lp_symlinks(SNUM(conn)))
+ if (!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);
+ sav = 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;
+ errno = sav;
+ return fsp->fh->fd != -1;
}
/****************************************************************************
Close the file associated with a fsp.
****************************************************************************/
-int fd_close(struct connection_struct *conn, files_struct *fsp)
-{
- if (fsp->fd == -1)
- return 0; /* what we used to call a stat open. */
- return fd_close_posix(conn, fsp);
-}
-
-
-/****************************************************************************
- Check a filename for the pipe string.
-****************************************************************************/
-
-static void check_for_pipe(const char *fname)
+int fd_close(struct connection_struct *conn,
+ files_struct *fsp)
{
- /* special case of pipe opens */
- char s[10];
- StrnCpy(s,fname,sizeof(s)-1);
- strlower_m(s);
- if (strstr(s,"pipe/")) {
- DEBUG(3,("Rejecting named pipe open for %s\n",fname));
- set_saved_error_triple(ERRSRV, ERRaccess, NT_STATUS_ACCESS_DENIED);
+ if (fsp->fh->fd == -1) {
+ return 0; /* What we used to call a stat open. */
+ }
+ if (fsp->fh->ref_count > 1) {
+ return 0; /* 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 directory %s. Error was %s\n",
- parent_path, strerror(errno) ));
+ DEBUG(0,("change_file_owner_to_parent: failed to stat parent "
+ "directory %s. Error was %s\n",
+ inherit_from_dir, strerror(errno) ));
return;
}
- if (fsp && fsp->fd != -1) {
- become_root();
- ret = SMB_VFS_FCHOWN(fsp, fsp->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 mode, uint32 desired_access)
+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. */
{
- extern struct current_user current_user;
int accmode = (flags & O_ACCMODE);
int local_flags = flags;
+ BOOL file_existed = VALID_STAT(*psbuf);
- fsp->fd = -1;
- fsp->oplock_type = NO_OPLOCK;
+ fsp->fh->fd = -1;
errno = EPERM;
/* Check permissions */
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));
- check_for_pipe(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 access into the
- directory.
+ /* We don't want to write - but we must make sure that
+ O_CREAT doesn't create the file if we have write
+ access into the directory.
*/
flags &= ~O_CREAT;
local_flags &= ~O_CREAT;
*/
if ((accmode == O_RDONLY) && ((flags & O_TRUNC) == O_TRUNC)) {
- DEBUG(10,("open_file: truncate requested on read-only open for file %s\n",fname ));
+ DEBUG(10,("open_file: truncate requested on read-only open "
+ "for file %s\n", path));
local_flags = (flags & ~O_ACCMODE)|O_RDWR;
}
- if ((desired_access & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA|FILE_EXECUTE)) ||
- (local_flags & O_CREAT) || ((local_flags & O_TRUNC) == O_TRUNC) ) {
+ 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;
* open flags. JRA.
*/
- if (VALID_STAT(*psbuf) && S_ISFIFO(psbuf->st_mode))
+ if (file_existed && S_ISFIFO(psbuf->st_mode)) {
local_flags |= O_NONBLOCK;
+ }
#endif
/* Don't create files with Microsoft wildcard characters. */
- if ((local_flags & O_CREAT) && !VALID_STAT(*psbuf) && ms_has_wild(fname)) {
- set_saved_error_triple(ERRDOS, ERRinvalidname, NT_STATUS_OBJECT_NAME_INVALID);
- return False;
+ if ((local_flags & O_CREAT) && !file_existed &&
+ ms_has_wild(path)) {
+ return NT_STATUS_OBJECT_NAME_INVALID;
}
/* Actually do the open */
- fsp->fd = fd_open(conn, fname, local_flags, mode);
- if (fsp->fd == -1) {
- DEBUG(3,("Error opening file %s (%s) (local_flags=%d) (flags=%d)\n",
- fname,strerror(errno),local_flags,flags));
- check_for_pipe(fname);
- return False;
+ if (!fd_open(conn, path, fsp, local_flags, unx_mode)) {
+ DEBUG(3,("Error opening file %s (%s) (local_flags=%d) "
+ "(flags=%d)\n",
+ path,strerror(errno),local_flags,flags));
+ return map_nt_error_from_unix(errno);
}
- /* Inherit the ACL if the file was created. */
- if ((local_flags & O_CREAT) && !VALID_STAT(*psbuf))
- inherit_access_acl(conn, fname, mode);
+ if ((local_flags & O_CREAT) && !file_existed) {
+
+ /* Inherit the ACL if required */
+ if (lp_inherit_perms(SNUM(conn))) {
+ inherit_access_acl(conn, parent_dir, path,
+ unx_mode);
+ }
- } else
- fsp->fd = -1; /* What we used to call a stat open. */
+ /* Change the owner if required. */
+ if (lp_inherit_owner(SNUM(conn))) {
+ change_file_owner_to_parent(conn, parent_dir,
+ fsp);
+ }
- if (!VALID_STAT(*psbuf)) {
+ notify_action(conn, parent_dir, name, -1,
+ NOTIFY_ACTION_ADDED);
+ }
+
+ } else {
+ fsp->fh->fd = -1; /* What we used to call a stat open. */
+ }
+
+ if (!file_existed) {
int ret;
- if (fsp->fd == -1)
- ret = SMB_VFS_STAT(conn, fname, psbuf);
- else {
- ret = SMB_VFS_FSTAT(fsp,fsp->fd,psbuf);
+ if (fsp->fh->fd == -1) {
+ 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) ));
+ if (ret == -1) {
+ DEBUG(0,("Error doing fstat on open file %s "
+ "(%s)\n", path,strerror(errno) ));
+ }
}
/* For a non-io open, this stat failing means file not found. JRA */
if (ret == -1) {
+ NTSTATUS 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->dev = psbuf->st_dev;
fsp->vuid = current_user.vuid;
fsp->file_pid = global_smbpid;
- fsp->size = psbuf->st_size;
fsp->can_lock = True;
- fsp->can_read = ((flags & O_WRONLY)==0);
- fsp->can_write = ((flags & (O_WRONLY|O_RDWR))!=0);
- fsp->share_mode = 0;
- fsp->desired_access = desired_access;
+ fsp->can_read = (access_mask & (FILE_READ_DATA)) ? True : False;
+ if (!CAN_WRITE(conn)) {
+ fsp->can_write = False;
+ } else {
+ fsp->can_write = (access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) ?
+ True : False;
+ }
fsp->print_file = False;
fsp->modified = False;
- fsp->oplock_type = NO_OPLOCK;
fsp->sent_oplock_break = NO_BREAK_SENT;
fsp->is_directory = False;
fsp->is_stat = False;
- fsp->directory_delete_on_close = False;
- string_set(&fsp->fsp_name,fname);
+ if (conn->aio_write_behind_list
+ && is_in_path(path, conn->aio_write_behind_list,
+ conn->case_sensitive)) {
+ fsp->aio_write_behind = True;
+ }
+
+ 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;
}
/*******************************************************************
return False;
}
-enum {AFAIL,AREAD,AWRITE,AALL};
-
-/*******************************************************************
- Reproduce the share mode access table.
- This is horrendoously complex, and really can't be justified on any
- rational grounds except that this is _exactly_ what NT does. See
- the DENY1 and DENY2 tests in smbtorture for a comprehensive set of
- test routines.
-********************************************************************/
-
-static int access_table(int new_deny,int old_deny,int old_mode,
- BOOL same_pid, BOOL isexe)
-{
- if (new_deny == DENY_ALL || old_deny == DENY_ALL) return(AFAIL);
-
- if (same_pid) {
- if (isexe && old_mode == DOS_OPEN_RDONLY &&
- old_deny == DENY_DOS && new_deny == DENY_READ) {
- return AFAIL;
- }
- if (!isexe && old_mode == DOS_OPEN_RDONLY &&
- old_deny == DENY_DOS && new_deny == DENY_DOS) {
- return AREAD;
- }
- if (new_deny == DENY_FCB && old_deny == DENY_DOS) {
- if (isexe) return AFAIL;
- if (old_mode == DOS_OPEN_RDONLY) return AFAIL;
- return AALL;
- }
- if (old_mode == DOS_OPEN_RDONLY && old_deny == DENY_DOS) {
- if (new_deny == DENY_FCB || new_deny == DENY_READ) {
- if (isexe) return AREAD;
- return AFAIL;
- }
- }
- if (old_deny == DENY_FCB) {
- if (new_deny == DENY_DOS || new_deny == DENY_FCB) return AALL;
- return AFAIL;
- }
- }
-
- if (old_deny == DENY_DOS || new_deny == DENY_DOS ||
- old_deny == DENY_FCB || new_deny == DENY_FCB) {
- if (isexe) {
- if (old_deny == DENY_FCB || new_deny == DENY_FCB) {
- return AFAIL;
- }
- if (old_deny == DENY_DOS) {
- if (new_deny == DENY_READ &&
- (old_mode == DOS_OPEN_RDONLY ||
- old_mode == DOS_OPEN_RDWR)) {
- return AFAIL;
- }
- if (new_deny == DENY_WRITE &&
- (old_mode == DOS_OPEN_WRONLY ||
- old_mode == DOS_OPEN_RDWR)) {
- return AFAIL;
- }
- return AALL;
- }
- if (old_deny == DENY_NONE) return AALL;
- if (old_deny == DENY_READ) return AWRITE;
- if (old_deny == DENY_WRITE) return AREAD;
- }
- /* it isn't a exe, dll, sym or com file */
- if (old_deny == new_deny && same_pid)
- return(AALL);
-
- if (old_deny == DENY_READ || new_deny == DENY_READ) return AFAIL;
- if (old_mode == DOS_OPEN_RDONLY) return(AREAD);
-
- return(AFAIL);
- }
-
- switch (new_deny)
- {
- case DENY_WRITE:
- if (old_deny==DENY_WRITE && old_mode==DOS_OPEN_RDONLY) return(AREAD);
- if (old_deny==DENY_READ && old_mode==DOS_OPEN_RDONLY) return(AWRITE);
- if (old_deny==DENY_NONE && old_mode==DOS_OPEN_RDONLY) return(AALL);
- return(AFAIL);
- case DENY_READ:
- if (old_deny==DENY_WRITE && old_mode==DOS_OPEN_WRONLY) return(AREAD);
- if (old_deny==DENY_READ && old_mode==DOS_OPEN_WRONLY) return(AWRITE);
- if (old_deny==DENY_NONE && old_mode==DOS_OPEN_WRONLY) return(AALL);
- return(AFAIL);
- case DENY_NONE:
- if (old_deny==DENY_WRITE) return(AREAD);
- if (old_deny==DENY_READ) return(AWRITE);
- if (old_deny==DENY_NONE) return(AALL);
- return(AFAIL);
- }
- return(AFAIL);
-}
-
/****************************************************************************
Check if we can open a file with a share mode.
+ Returns True if conflict, False if not.
****************************************************************************/
-static BOOL check_share_mode(connection_struct *conn, share_mode_entry *share, int share_mode, uint32 desired_access,
- const char *fname, BOOL fcbopen, int *flags)
+static BOOL share_conflict(struct share_mode_entry *entry,
+ uint32 access_mask,
+ uint32 share_access)
{
- int deny_mode = GET_DENY_MODE(share_mode);
- int old_open_mode = GET_OPEN_MODE(share->share_mode);
- int old_deny_mode = GET_DENY_MODE(share->share_mode);
- BOOL non_io_open_request;
- BOOL non_io_open_existing;
-
- /*
- * share modes = false means don't bother to check for
- * DENY mode conflict. This is a *really* bad idea :-). JRA.
- */
-
- if(!lp_share_modes(SNUM(conn)))
- return True;
-
- if (desired_access & ~(SYNCHRONIZE_ACCESS|READ_CONTROL_ACCESS|FILE_READ_ATTRIBUTES|FILE_WRITE_ATTRIBUTES)) {
- non_io_open_request = False;
- } else {
- non_io_open_request = True;
- }
-
- if (share->desired_access & ~(SYNCHRONIZE_ACCESS|READ_CONTROL_ACCESS|FILE_READ_ATTRIBUTES|FILE_WRITE_ATTRIBUTES)) {
- non_io_open_existing = False;
- } else {
- non_io_open_existing = True;
- }
-
- /*
- * Don't allow any opens once the delete on close flag has been
- * set.
- */
-
- if (GET_DELETE_ON_CLOSE_FLAG(share->share_mode)) {
- DEBUG(5,("check_share_mode: Failing open on file %s as delete on close flag is set.\n",
- fname ));
- /* Use errno to map to correct error. */
- set_saved_error_triple(SMB_SUCCESS, 0, NT_STATUS_OK);
+ DEBUG(10,("share_conflict: entry->access_mask = 0x%x, "
+ "entry->share_access = 0x%x, "
+ "entry->private_options = 0x%x\n",
+ (unsigned int)entry->access_mask,
+ (unsigned int)entry->share_access,
+ (unsigned int)entry->private_options));
+
+ DEBUG(10,("share_conflict: access_mask = 0x%x, share_access = 0x%x\n",
+ (unsigned int)access_mask, (unsigned int)share_access));
+
+ if ((entry->access_mask & (FILE_WRITE_DATA|
+ FILE_APPEND_DATA|
+ FILE_READ_DATA|
+ FILE_EXECUTE|
+ DELETE_ACCESS)) == 0) {
+ DEBUG(10,("share_conflict: No conflict due to "
+ "entry->access_mask = 0x%x\n",
+ (unsigned int)entry->access_mask ));
return False;
}
- /* this is a nasty hack, but necessary until we rewrite our open
- handling to use a NTCreateX call as the basic call.
- NT may open a file with neither read nor write access, and in
- this case it expects the open not to conflict with any
- existing deny modes. This happens (for example) during a
- "xcopy /o" where the second file descriptor is used for
- ACL sets
- (tridge)
- */
-
- /*
- * This is a bit wierd - the test for desired access not having the
- * critical bits seems seems odd. Firstly, if both opens have no
- * critical bits then always ignore. Then check the "allow delete"
- * then check for either. This probably isn't quite right yet but
- * gets us much closer. JRA.
- */
-
- /*
- * If desired_access doesn't contain READ_DATA,WRITE_DATA,APPEND_DATA or EXECUTE
- * and the existing desired_acces then share modes don't conflict.
- */
-
- if (non_io_open_request && non_io_open_existing) {
-
- /*
- * Wrinkle discovered by smbtorture....
- * If both are non-io open and requester is asking for delete and current open has delete access
- * but neither open has allowed file share delete then deny.... this is very strange and
- * seems to be the only case in which non-io opens conflict. JRA.
- */
-
- if ((desired_access & DELETE_ACCESS) && (share->desired_access & DELETE_ACCESS) &&
- (!GET_ALLOW_SHARE_DELETE(share->share_mode) || !GET_ALLOW_SHARE_DELETE(share_mode))) {
- DEBUG(5,("check_share_mode: Failing open on file %s as delete access requests conflict.\n",
- fname ));
- set_saved_error_triple(ERRDOS, ERRbadshare, NT_STATUS_SHARING_VIOLATION);
- return False;
- }
-
- DEBUG(5,("check_share_mode: Allowing open on file %s as both desired access (0x%x) \
-and existing desired access (0x%x) are non-data opens\n",
- fname, (unsigned int)desired_access, (unsigned int)share->desired_access ));
- return True;
- } else if (non_io_open_request || non_io_open_existing) {
- /*
- * If either are non-io opens then share modes don't conflict.
- */
- DEBUG(5,("check_share_mode: One non-io open. Allowing open on file %s as desired access (0x%x) doesn't conflict with\
-existing desired access (0x%x).\n", fname, (unsigned int)desired_access, (unsigned int)share->desired_access ));
- return True;
- }
-
- /*
- * If delete access was requested and the existing share mode doesn't have
- * ALLOW_SHARE_DELETE then deny.
- */
-
- if ((desired_access & DELETE_ACCESS) && !GET_ALLOW_SHARE_DELETE(share->share_mode)) {
- DEBUG(5,("check_share_mode: Failing open on file %s as delete access requested and allow share delete not set.\n",
- fname ));
- set_saved_error_triple(ERRDOS, ERRbadshare, NT_STATUS_SHARING_VIOLATION);
+ if ((access_mask & (FILE_WRITE_DATA|
+ FILE_APPEND_DATA|
+ FILE_READ_DATA|
+ FILE_EXECUTE|
+ DELETE_ACCESS)) == 0) {
+ DEBUG(10,("share_conflict: No conflict due to "
+ "access_mask = 0x%x\n",
+ (unsigned int)access_mask ));
return False;
}
- /*
- * The inverse of the above.
- * If delete access was granted and the new share mode doesn't have
- * ALLOW_SHARE_DELETE then deny.
- */
-
- if ((share->desired_access & DELETE_ACCESS) && !GET_ALLOW_SHARE_DELETE(share_mode)) {
- DEBUG(5,("check_share_mode: Failing open on file %s as delete access granted and allow share delete not requested.\n",
- fname ));
- set_saved_error_triple(ERRDOS, ERRbadshare, NT_STATUS_SHARING_VIOLATION);
- return False;
+#if 1 /* JRA TEST - Superdebug. */
+#define CHECK_MASK(num, am, right, sa, share) \
+ DEBUG(10,("share_conflict: [%d] am (0x%x) & right (0x%x) = 0x%x\n", \
+ (unsigned int)(num), (unsigned int)(am), \
+ (unsigned int)(right), (unsigned int)(am)&(right) )); \
+ DEBUG(10,("share_conflict: [%d] sa (0x%x) & share (0x%x) = 0x%x\n", \
+ (unsigned int)(num), (unsigned int)(sa), \
+ (unsigned int)(share), (unsigned int)(sa)&(share) )); \
+ if (((am) & (right)) && !((sa) & (share))) { \
+ DEBUG(10,("share_conflict: check %d conflict am = 0x%x, right = 0x%x, \
+sa = 0x%x, share = 0x%x\n", (num), (unsigned int)(am), (unsigned int)(right), (unsigned int)(sa), \
+ (unsigned int)(share) )); \
+ return True; \
}
-
-#if 0
- /* Bluarc test may need this ... needs further investigation. */
- if (deny_mode == DENY_ALL || old_deny_mode == DENY_ALL) {
- set_saved_error_triple(ERRDOS, ERRbadshare, NT_STATUS_SHARING_VIOLATION);
- return False;
+#else
+#define CHECK_MASK(num, am, right, sa, share) \
+ if (((am) & (right)) && !((sa) & (share))) { \
+ DEBUG(10,("share_conflict: check %d conflict am = 0x%x, right = 0x%x, \
+sa = 0x%x, share = 0x%x\n", (num), (unsigned int)(am), (unsigned int)(right), (unsigned int)(sa), \
+ (unsigned int)(share) )); \
+ return True; \
}
#endif
- /*
- * If desired_access doesn't contain READ_DATA,WRITE_DATA,APPEND_DATA or EXECUTE
- * then share modes don't conflict. Likewise with existing desired access.
- */
-
- if ( !(desired_access & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA|FILE_EXECUTE)) ||
- !(share->desired_access & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA|FILE_EXECUTE)) ) {
- DEBUG(5,("check_share_mode: Allowing open on file %s as desired access (0x%x) doesn't conflict with \
-existing desired access (0x%x).\n", fname, (unsigned int)desired_access, (unsigned int)share->desired_access ));
- return True;
- }
-
- {
- int access_allowed = access_table(deny_mode,old_deny_mode,old_open_mode,
- (share->pid == sys_getpid()),is_executable(fname));
-
- if ((access_allowed == AFAIL) ||
- (!fcbopen && (access_allowed == AREAD && *flags == O_RDWR)) ||
- (access_allowed == AREAD && *flags != O_RDONLY) ||
- (access_allowed == AWRITE && *flags != O_WRONLY)) {
-
- DEBUG(2,("Share violation on file (%d,%d,%d,%d,%s,fcbopen = %d, flags = %d) = %d\n",
- deny_mode,old_deny_mode,old_open_mode,
- (int)share->pid,fname, fcbopen, *flags, access_allowed));
-
- set_saved_error_triple(ERRDOS, ERRbadshare, NT_STATUS_SHARING_VIOLATION);
- return False;
- }
-
- if (access_allowed == AREAD)
- *flags = O_RDONLY;
-
- if (access_allowed == AWRITE)
- *flags = O_WRONLY;
+ CHECK_MASK(1, entry->access_mask, FILE_WRITE_DATA | FILE_APPEND_DATA,
+ share_access, FILE_SHARE_WRITE);
+ CHECK_MASK(2, access_mask, FILE_WRITE_DATA | FILE_APPEND_DATA,
+ entry->share_access, FILE_SHARE_WRITE);
+
+ CHECK_MASK(3, entry->access_mask, FILE_READ_DATA | FILE_EXECUTE,
+ share_access, FILE_SHARE_READ);
+ CHECK_MASK(4, access_mask, FILE_READ_DATA | FILE_EXECUTE,
+ entry->share_access, FILE_SHARE_READ);
- }
+ CHECK_MASK(5, entry->access_mask, DELETE_ACCESS,
+ share_access, FILE_SHARE_DELETE);
+ CHECK_MASK(6, access_mask, DELETE_ACCESS,
+ entry->share_access, FILE_SHARE_DELETE);
- return True;
+ DEBUG(10,("share_conflict: No conflict.\n"));
+ return False;
}
-
#if defined(DEVELOPER)
-static void validate_my_share_entries(int num, share_mode_entry *share_entry)
+static void validate_my_share_entries(int num,
+ struct share_mode_entry *share_entry)
{
files_struct *fsp;
- if (share_entry->pid != sys_getpid())
+ if (!procid_is_me(&share_entry->pid)) {
return;
+ }
- fsp = file_find_dif(share_entry->dev, share_entry->inode, share_entry->share_file_id);
+ if (is_deferred_open_entry(share_entry) &&
+ !open_was_deferred(share_entry->op_mid)) {
+ pstring str;
+ pstr_sprintf(str, "Got a deferred entry without a request: "
+ "PANIC: %s\n", share_mode_str(num, share_entry));
+ smb_panic(str);
+ }
+
+ if (!is_valid_share_mode_entry(share_entry)) {
+ return;
+ }
+
+ fsp = file_find_dif(share_entry->dev, share_entry->inode,
+ share_entry->share_file_id);
if (!fsp) {
- DEBUG(0,("validate_my_share_entries: PANIC : %s\n", share_mode_str(num, share_entry) ));
- smb_panic("validate_my_share_entries: Cannot match a share entry with an open file\n");
+ DEBUG(0,("validate_my_share_entries: PANIC : %s\n",
+ share_mode_str(num, share_entry) ));
+ smb_panic("validate_my_share_entries: Cannot match a "
+ "share entry with an open file\n");
+ }
+
+ if (is_deferred_open_entry(share_entry) ||
+ is_unused_share_mode_entry(share_entry)) {
+ goto panic;
+ }
+
+ if ((share_entry->op_type == NO_OPLOCK) &&
+ (fsp->oplock_type == FAKE_LEVEL_II_OPLOCK)) {
+ /* Someone has already written to it, but I haven't yet
+ * noticed */
+ return;
}
if (((uint16)fsp->oplock_type) != share_entry->op_type) {
+ goto panic;
+ }
+
+ return;
+
+ panic:
+ {
pstring str;
- DEBUG(0,("validate_my_share_entries: PANIC : %s\n", share_mode_str(num, share_entry) ));
- slprintf(str, sizeof(str)-1, "validate_my_share_entries: file %s, oplock_type = 0x%x, op_type = 0x%x\n",
- fsp->fsp_name, (unsigned int)fsp->oplock_type, (unsigned int)share_entry->op_type );
+ DEBUG(0,("validate_my_share_entries: PANIC : %s\n",
+ share_mode_str(num, share_entry) ));
+ slprintf(str, sizeof(str)-1, "validate_my_share_entries: "
+ "file %s, oplock_type = 0x%x, op_type = 0x%x\n",
+ fsp->fsp_name, (unsigned int)fsp->oplock_type,
+ (unsigned int)share_entry->op_type );
smb_panic(str);
}
}
#endif
-struct share_mode_entry_list {
- struct share_mode_entry_list *next, *prev;
- share_mode_entry entry;
-};
-
-static void free_broken_entry_list(struct share_mode_entry_list *broken_entry_list)
+static BOOL is_stat_open(uint32 access_mask)
{
- while (broken_entry_list) {
- struct share_mode_entry_list *broken_entry = broken_entry_list;
- DLIST_REMOVE(broken_entry_list, broken_entry);
- SAFE_FREE(broken_entry);
- }
+ return (access_mask &&
+ ((access_mask & ~(SYNCHRONIZE_ACCESS| FILE_READ_ATTRIBUTES|
+ FILE_WRITE_ATTRIBUTES))==0) &&
+ ((access_mask & (SYNCHRONIZE_ACCESS|FILE_READ_ATTRIBUTES|
+ FILE_WRITE_ATTRIBUTES)) != 0));
}
/****************************************************************************
- Deal with open deny mode and oplock break processing.
+ Deal with share modes
Invarient: Share mode must be locked on entry and exit.
Returns -1 on error, or number of share modes on success (may be zero).
****************************************************************************/
-static int open_mode_check(connection_struct *conn, const char *fname, SMB_DEV_T dev,
- SMB_INO_T inode,
- uint32 desired_access,
- int share_mode, int *p_flags, int *p_oplock_request,
- BOOL *p_all_current_opens_are_level_II)
+static NTSTATUS open_mode_check(connection_struct *conn,
+ const char *fname,
+ struct share_mode_lock *lck,
+ uint32 access_mask,
+ uint32 share_access,
+ uint32 create_options,
+ BOOL *file_existed)
{
int i;
- int num_share_modes;
- int oplock_contention_count = 0;
- share_mode_entry *old_shares = NULL;
- BOOL fcbopen = False;
- BOOL broke_oplock;
-
- if(GET_OPEN_MODE(share_mode) == DOS_OPEN_FCB)
- fcbopen = True;
-
- num_share_modes = get_share_modes(conn, dev, inode, &old_shares);
-
- if(num_share_modes == 0) {
- SAFE_FREE(old_shares);
- return 0;
+
+ if(lck->num_share_modes == 0) {
+ return NT_STATUS_OK;
}
+
+ *file_existed = True;
- if (desired_access && ((desired_access & ~(SYNCHRONIZE_ACCESS|FILE_READ_ATTRIBUTES|FILE_WRITE_ATTRIBUTES))==0) &&
- ((desired_access & (SYNCHRONIZE_ACCESS|FILE_READ_ATTRIBUTES|FILE_WRITE_ATTRIBUTES)) != 0)) {
- /* Stat open that doesn't trigger oplock breaks or share mode checks... ! JRA. */
- SAFE_FREE(old_shares);
- return num_share_modes;
+ if (is_stat_open(access_mask)) {
+ /* Stat open that doesn't trigger oplock breaks or share mode
+ * checks... ! JRA. */
+ return NT_STATUS_OK;
+ }
+
+ /* A delete on close prohibits everything */
+
+ if (lck->delete_on_close) {
+ return NT_STATUS_DELETE_PENDING;
}
/*
* Check if the share modes will give us access.
*/
- do {
- struct share_mode_entry_list *broken_entry_list = NULL;
- struct share_mode_entry_list *broken_entry = NULL;
-
- broke_oplock = False;
- *p_all_current_opens_are_level_II = True;
-
- for(i = 0; i < num_share_modes; i++) {
- BOOL cause_oplock_break = False;
- share_mode_entry *share_entry = &old_shares[i];
-
#if defined(DEVELOPER)
- validate_my_share_entries(i, share_entry);
+ for(i = 0; i < lck->num_share_modes; i++) {
+ validate_my_share_entries(i, &lck->share_modes[i]);
+ }
#endif
- /*
- * By observation of NetBench, oplocks are broken *before* share
- * modes are checked. This allows a file to be closed by the client
- * if the share mode would deny access and the client has an oplock.
- * Check if someone has an oplock on this file. If so we must break
- * it before continuing.
- */
-
- /* Was this a delete this file request ? */
- if (!*p_oplock_request && desired_access == DELETE_ACCESS &&
- !BATCH_OPLOCK_TYPE(share_entry->op_type)) {
- /* Don't break the oplock in this case. */
- cause_oplock_break = False;
- } else if((*p_oplock_request && EXCLUSIVE_OPLOCK_TYPE(share_entry->op_type)) ||
- (!*p_oplock_request && (share_entry->op_type != NO_OPLOCK))) {
- cause_oplock_break = True;
- }
-
- if(cause_oplock_break) {
- BOOL opb_ret;
+ if (!lp_share_modes(SNUM(conn))) {
+ return NT_STATUS_OK;
+ }
- DEBUG(5,("open_mode_check: oplock_request = %d, breaking oplock (%x) on file %s, \
-dev = %x, inode = %.0f\n", *p_oplock_request, share_entry->op_type, fname, (unsigned int)dev, (double)inode));
-
- /* Ensure the reply for the open uses the correct sequence number. */
- /* This isn't a real deferred packet as it's response will also increment
- * the sequence.
- */
- srv_defer_sign_response(get_current_mid());
+ /* Now we check the share modes, after any oplock breaks. */
+ for(i = 0; i < lck->num_share_modes; i++) {
- /* Oplock break - unlock to request it. */
- unlock_share_entry(conn, dev, inode);
-
- opb_ret = request_oplock_break(share_entry);
-
- /* Now relock. */
- lock_share_entry(conn, dev, inode);
-
- if(opb_ret == False) {
- DEBUG(0,("open_mode_check: FAILED when breaking oplock (%x) on file %s, \
-dev = %x, inode = %.0f\n", old_shares[i].op_type, fname, (unsigned int)dev, (double)inode));
- SAFE_FREE(old_shares);
- set_saved_error_triple(ERRDOS, ERRbadshare, NT_STATUS_SHARING_VIOLATION);
- return -1;
- }
-
- broken_entry = SMB_MALLOC_P(struct share_mode_entry_list);
- if (!broken_entry) {
- smb_panic("open_mode_check: malloc fail.\n");
- }
- broken_entry->entry = *share_entry;
- DLIST_ADD(broken_entry_list, broken_entry);
- broke_oplock = True;
-
- } else if (!LEVEL_II_OPLOCK_TYPE(share_entry->op_type)) {
- *p_all_current_opens_are_level_II = False;
- }
- } /* end for */
-
- if (broke_oplock) {
- /* Update the current open table. */
- SAFE_FREE(old_shares);
- num_share_modes = get_share_modes(conn, dev, inode, &old_shares);
+ if (!is_valid_share_mode_entry(&lck->share_modes[i])) {
+ continue;
}
- /* Now we check the share modes, after any oplock breaks. */
- for(i = 0; i < num_share_modes; i++) {
- share_mode_entry *share_entry = &old_shares[i];
-
- /* someone else has a share lock on it, check to see if we can too */
- if (!check_share_mode(conn, share_entry, share_mode, desired_access,
- fname, fcbopen, p_flags)) {
- SAFE_FREE(old_shares);
- free_broken_entry_list(broken_entry_list);
- errno = EACCES;
- return -1;
- }
+ /* someone else has a share lock on it, check to see if we can
+ * too */
+ if (share_conflict(&lck->share_modes[i],
+ access_mask, share_access)) {
+ return NT_STATUS_SHARING_VIOLATION;
}
-
- for(broken_entry = broken_entry_list; broken_entry; broken_entry = broken_entry->next) {
- oplock_contention_count++;
-
- /* Paranoia check that this is no longer an exlusive entry. */
- for(i = 0; i < num_share_modes; i++) {
- share_mode_entry *share_entry = &old_shares[i];
-
- if (share_modes_identical(&broken_entry->entry, share_entry) &&
- EXCLUSIVE_OPLOCK_TYPE(share_entry->op_type) ) {
-
- /*
- * This should not happen. The target left this oplock
- * as exlusive.... The process *must* be dead....
- */
-
- DEBUG(0,("open_mode_check: exlusive oplock left by process %d \
-after break ! For file %s, dev = %x, inode = %.0f. Deleting it to continue...\n",
- (int)broken_entry->entry.pid, fname, (unsigned int)dev, (double)inode));
-
- if (process_exists(broken_entry->entry.pid)) {
- DEBUG(0,("open_mode_check: Existent process %lu left active oplock.\n",
- (unsigned long)broken_entry->entry.pid ));
- }
-
- if (del_share_entry(dev, inode, &broken_entry->entry, NULL) == -1) {
- free_broken_entry_list(broken_entry_list);
- errno = EACCES;
- set_saved_error_triple(ERRDOS, ERRbadshare, NT_STATUS_SHARING_VIOLATION);
- return -1;
- }
-
- /*
- * We must reload the share modes after deleting the
- * other process's entry.
- */
-
- SAFE_FREE(old_shares);
- num_share_modes = get_share_modes(conn, dev, inode, &old_shares);
- break;
- }
- } /* end for paranoia... */
- } /* end for broken_entry */
- free_broken_entry_list(broken_entry_list);
- } while(broke_oplock);
-
- /*
- * Refuse to grant an oplock in case the contention limit is
- * reached when going through the lock list multiple times.
- */
-
- if(oplock_contention_count >= lp_oplock_contention_limit(SNUM(conn))) {
- *p_oplock_request = 0;
- DEBUG(4,("open_mode_check: oplock contention = %d. Not granting oplock.\n",
- oplock_contention_count ));
}
- SAFE_FREE(old_shares);
- return num_share_modes;
+ return NT_STATUS_OK;
}
-/****************************************************************************
- Delete the record for a handled deferred open entry.
-****************************************************************************/
+static BOOL is_delete_request(files_struct *fsp) {
+ return ((fsp->access_mask == DELETE_ACCESS) &&
+ (fsp->oplock_type == NO_OPLOCK));
+}
-static void delete_defered_open_entry_record(connection_struct *conn, SMB_DEV_T dev, SMB_INO_T inode)
+/*
+ * 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
+ * requested access type, break.
+ *
+ * 3) Only level2 around: Grant level2 and do nothing else.
+ */
+
+static BOOL delay_for_oplocks(struct share_mode_lock *lck,
+ files_struct *fsp,
+ int pass_number,
+ int oplock_request)
{
- uint16 mid = get_current_mid();
- pid_t mypid = sys_getpid();
- deferred_open_entry *de_array = NULL;
- int num_de_entries, i;
+ int i;
+ struct share_mode_entry *exclusive = NULL;
+ BOOL valid_entry = False;
+ BOOL delay_it = False;
+ BOOL have_level2 = False;
+ BOOL ret;
+ char msg[MSG_SMB_SHARE_MODE_ENTRY_SIZE];
+
+ if (oplock_request & INTERNAL_OPEN_ONLY) {
+ fsp->oplock_type = NO_OPLOCK;
+ }
- if (!lp_defer_sharing_violations()) {
- return;
+ if ((oplock_request & INTERNAL_OPEN_ONLY) || is_stat_open(fsp->access_mask)) {
+ return False;
}
- num_de_entries = get_deferred_opens(conn, dev, inode, &de_array);
- for (i = 0; i < num_de_entries; i++) {
- deferred_open_entry *entry = &de_array[i];
- if (entry->pid == mypid && entry->mid == mid && entry->dev == dev &&
- entry->inode == inode) {
+ for (i=0; i<lck->num_share_modes; i++) {
+
+ if (!is_valid_share_mode_entry(&lck->share_modes[i])) {
+ continue;
+ }
+
+ /* At least one entry is not an invalid or deferred entry. */
+ valid_entry = True;
+
+ 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) {
+ SMB_ASSERT(exclusive == NULL);
+ have_level2 = True;
+ }
+ }
- /* Remove the deferred open entry from the array. */
- delete_deferred_open_entry(entry);
- SAFE_FREE(de_array);
- return;
+ if (!valid_entry) {
+ /* All entries are placeholders or deferred.
+ * Directly grant whatever the client wants. */
+ if (fsp->oplock_type == NO_OPLOCK) {
+ /* Store a level2 oplock, but don't tell the client */
+ fsp->oplock_type = FAKE_LEVEL_II_OPLOCK;
}
+ return False;
}
- SAFE_FREE(de_array);
+
+ if (exclusive != NULL) { /* Found an exclusive oplock */
+ SMB_ASSERT(!have_level2);
+ delay_it = is_delete_request(fsp) ?
+ BATCH_OPLOCK_TYPE(exclusive->op_type) : True;
+ }
+
+ if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
+ /* We can at most grant level2 as there are other
+ * level2 or NO_OPLOCK entries. */
+ fsp->oplock_type = LEVEL_II_OPLOCK;
+ }
+
+ if ((fsp->oplock_type == NO_OPLOCK) && have_level2) {
+ /* Store a level2 oplock, but don't tell the client */
+ fsp->oplock_type = FAKE_LEVEL_II_OPLOCK;
+ }
+
+ if (!delay_it) {
+ return False;
+ }
+
+ /*
+ * Send a break message to the oplock holder and delay the open for
+ * our client.
+ */
+
+ DEBUG(10, ("Sending break request to PID %s\n",
+ procid_str_static(&exclusive->pid)));
+ exclusive->op_mid = get_current_mid();
+
+ /* 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);
+ }
+
+ ret = message_send_pid(exclusive->pid, MSG_SMB_BREAK_REQUEST,
+ msg, MSG_SMB_SHARE_MODE_ENTRY_SIZE, True);
+ if (!ret) {
+ DEBUG(3, ("Could not send oplock break message\n"));
+ }
+
+ return True;
+}
+
+static BOOL request_timed_out(struct timeval request_time,
+ struct timeval timeout)
+{
+ struct timeval now, end_time;
+ GetTimeOfDay(&now);
+ end_time = timeval_sum(&request_time, &timeout);
+ return (timeval_compare(&end_time, &now) < 0);
}
/****************************************************************************
Handle the 1 second delay in returning a SHARING_VIOLATION error.
****************************************************************************/
-void defer_open_sharing_error(connection_struct *conn, struct timeval *ptv,
- char *fname, SMB_DEV_T dev, SMB_INO_T inode)
+static void defer_open(struct share_mode_lock *lck,
+ struct timeval request_time,
+ struct timeval timeout,
+ struct deferred_open_record *state)
{
uint16 mid = get_current_mid();
- pid_t mypid = sys_getpid();
- deferred_open_entry *de_array = NULL;
- int num_de_entries, i;
- struct dev_inode_bundle dib;
-
- if (!lp_defer_sharing_violations()) {
- return;
- }
+ int i;
- dib.dev = dev;
- dib.inode = inode;
+ /* Paranoia check */
- num_de_entries = get_deferred_opens(conn, dev, inode, &de_array);
- for (i = 0; i < num_de_entries; i++) {
- deferred_open_entry *entry = &de_array[i];
- if (entry->pid == mypid && entry->mid == mid) {
- /*
- * Check if a 1 second timeout has expired.
- */
- if (usec_time_diff(ptv, &entry->time) > SHARING_VIOLATION_USEC_WAIT) {
- DEBUG(10,("defer_open_sharing_error: Deleting deferred open entry for mid %u, \
-file %s\n",
- (unsigned int)mid, fname ));
+ for (i=0; i<lck->num_share_modes; i++) {
+ struct share_mode_entry *e = &lck->share_modes[i];
- /* Expired, return a real error. */
- /* Remove the deferred open entry from the array. */
+ if (!is_deferred_open_entry(e)) {
+ continue;
+ }
- delete_deferred_open_entry(entry);
- SAFE_FREE(de_array);
- return;
- }
- /*
- * If the timeout hasn't expired yet and we still have a sharing violation,
- * just leave the entry in the deferred open array alone. We do need to
- * reschedule this open call though (with the original created time).
- */
- DEBUG(10,("defer_open_sharing_error: time [%u.%06u] updating \
-deferred open entry for mid %u, file %s\n",
- (unsigned int)entry->time.tv_sec,
- (unsigned int)entry->time.tv_usec,
- (unsigned int)mid, fname ));
-
- push_sharing_violation_open_smb_message(&entry->time, (char *)&dib, sizeof(dib));
- SAFE_FREE(de_array);
- return;
+ 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("attempt to defer a deferred request");
}
}
- DEBUG(10,("defer_open_sharing_error: time [%u.%06u] adding deferred open entry for mid %u, file %s\n",
- (unsigned int)ptv->tv_sec, (unsigned int)ptv->tv_usec, (unsigned int)mid, fname ));
+ /* End paranoia check */
- if (!push_sharing_violation_open_smb_message(ptv, (char *)&dib, sizeof(dib))) {
- SAFE_FREE(de_array);
- return;
- }
- if (!add_deferred_open(mid, ptv, dev, inode, global_oplock_port, fname)) {
- remove_sharing_violation_open_smb_message(mid);
+ DEBUG(10,("defer_open_sharing_error: time [%u.%06u] adding deferred "
+ "open entry for mid %u\n",
+ (unsigned int)request_time.tv_sec,
+ (unsigned int)request_time.tv_usec,
+ (unsigned int)mid));
+
+ if (!push_deferred_smb_message(mid, request_time, timeout,
+ (char *)state, sizeof(*state))) {
+ exit_server("push_deferred_smb_message failed");
}
+ add_deferred_open(lck, mid, request_time, state->dev, state->inode);
/*
* Push the MID of this packet on the signing queue.
*/
srv_defer_sign_response(mid);
-
- SAFE_FREE(de_array);
}
+
/****************************************************************************
- Set a kernel flock on a file for NFS interoperability.
- This requires a patch to Linux.
+ On overwrite open ensure that the attributes match.
****************************************************************************/
-static void kernel_flock(files_struct *fsp, int deny_mode)
-{
-#if HAVE_KERNEL_SHARE_MODES
- int kernel_mode = 0;
- if (deny_mode == DENY_READ) kernel_mode = LOCK_MAND|LOCK_WRITE;
- else if (deny_mode == DENY_WRITE) kernel_mode = LOCK_MAND|LOCK_READ;
- else if (deny_mode == DENY_ALL) kernel_mode = LOCK_MAND;
- if (kernel_mode) flock(fsp->fd, kernel_mode);
-#endif
- ;;
-}
-
-
-static BOOL open_match_attributes(connection_struct *conn, const char *path, uint32 old_dos_mode, uint32 new_dos_mode,
- mode_t existing_mode, mode_t new_mode, mode_t *returned_mode)
+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)
{
- uint32 noarch_old_dos_mode, noarch_new_dos_mode;
+ uint32 noarch_old_dos_attr, noarch_new_dos_attr;
- noarch_old_dos_mode = (old_dos_mode & ~FILE_ATTRIBUTE_ARCHIVE);
- noarch_new_dos_mode = (new_dos_mode & ~FILE_ATTRIBUTE_ARCHIVE);
+ noarch_old_dos_attr = (old_dos_attr & ~FILE_ATTRIBUTE_ARCHIVE);
+ noarch_new_dos_attr = (new_dos_attr & ~FILE_ATTRIBUTE_ARCHIVE);
- if((noarch_old_dos_mode == 0 && noarch_new_dos_mode != 0) ||
- (noarch_old_dos_mode != 0 && ((noarch_old_dos_mode & noarch_new_dos_mode) == noarch_old_dos_mode)))
- *returned_mode = new_mode;
- else
- *returned_mode = (mode_t)0;
+ if((noarch_old_dos_attr == 0 && noarch_new_dos_attr != 0) ||
+ (noarch_old_dos_attr != 0 && ((noarch_old_dos_attr & noarch_new_dos_attr) == noarch_old_dos_attr))) {
+ *returned_unx_mode = new_unx_mode;
+ } else {
+ *returned_unx_mode = (mode_t)0;
+ }
- DEBUG(10,("open_match_attributes: file %s old_dos_mode = 0x%x, existing_mode = 0%o, new_dos_mode = 0x%x returned_mode = 0%o\n",
- path,
- old_dos_mode, (unsigned int)existing_mode, new_dos_mode, (unsigned int)*returned_mode ));
+ DEBUG(10,("open_match_attributes: file %s old_dos_attr = 0x%x, "
+ "existing_unx_mode = 0%o, new_dos_attr = 0x%x "
+ "returned_unx_mode = 0%o\n",
+ path,
+ (unsigned int)old_dos_attr,
+ (unsigned int)existing_unx_mode,
+ (unsigned int)new_dos_attr,
+ (unsigned int)*returned_unx_mode ));
/* If we're mapping SYSTEM and HIDDEN ensure they match. */
if (lp_map_system(SNUM(conn)) || lp_store_dos_attributes(SNUM(conn))) {
- if ((old_dos_mode & FILE_ATTRIBUTE_SYSTEM) && !(new_dos_mode & FILE_ATTRIBUTE_SYSTEM))
+ if ((old_dos_attr & FILE_ATTRIBUTE_SYSTEM) &&
+ !(new_dos_attr & FILE_ATTRIBUTE_SYSTEM)) {
return False;
+ }
}
if (lp_map_hidden(SNUM(conn)) || lp_store_dos_attributes(SNUM(conn))) {
- if ((old_dos_mode & FILE_ATTRIBUTE_HIDDEN) && !(new_dos_mode & FILE_ATTRIBUTE_HIDDEN))
+ if ((old_dos_attr & FILE_ATTRIBUTE_HIDDEN) &&
+ !(new_dos_attr & FILE_ATTRIBUTE_HIDDEN)) {
return False;
+ }
}
return True;
}
/****************************************************************************
- Open a file with a share mode.
+ Special FCB or DOS processing in the case of a sharing violation.
+ Try and find a duplicated file handle.
****************************************************************************/
-files_struct *open_file_shared(connection_struct *conn,char *fname, SMB_STRUCT_STAT *psbuf,
- int share_mode,int ofun, uint32 new_dos_mode, int oplock_request,
- int *Access,int *action)
+static files_struct *fcb_or_dos_open(connection_struct *conn,
+ const char *fname, SMB_DEV_T dev,
+ SMB_INO_T inode,
+ uint32 access_mask,
+ uint32 share_access,
+ uint32 create_options)
{
- return open_file_shared1(conn, fname, psbuf, 0, share_mode, ofun, new_dos_mode,
- oplock_request, Access, action);
+ files_struct *fsp;
+ files_struct *dup_fsp;
+
+ DEBUG(5,("fcb_or_dos_open: attempting old open semantics for "
+ "file %s.\n", fname ));
+
+ for(fsp = file_find_di_first(dev, inode); fsp;
+ fsp = file_find_di_next(fsp)) {
+
+ DEBUG(10,("fcb_or_dos_open: checking file %s, fd = %d, "
+ "vuid = %u, file_pid = %u, private_options = 0x%x "
+ "access_mask = 0x%x\n", fsp->fsp_name,
+ fsp->fh->fd, (unsigned int)fsp->vuid,
+ (unsigned int)fsp->file_pid,
+ (unsigned int)fsp->fh->private_options,
+ (unsigned int)fsp->access_mask ));
+
+ if (fsp->fh->fd != -1 &&
+ fsp->vuid == current_user.vuid &&
+ fsp->file_pid == global_smbpid &&
+ (fsp->fh->private_options & (NTCREATEX_OPTIONS_PRIVATE_DENY_DOS |
+ NTCREATEX_OPTIONS_PRIVATE_DENY_FCB)) &&
+ (fsp->access_mask & FILE_WRITE_DATA) &&
+ strequal(fsp->fsp_name, fname)) {
+ DEBUG(10,("fcb_or_dos_open: file match\n"));
+ break;
+ }
+ }
+
+ if (!fsp) {
+ return NULL;
+ }
+
+ /* quite an insane set of semantics ... */
+ if (is_executable(fname) &&
+ (fsp->fh->private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS)) {
+ DEBUG(10,("fcb_or_dos_open: file fail due to is_executable.\n"));
+ return NULL;
+ }
+
+ /* We need to duplicate this fsp. */
+ if (!NT_STATUS_IS_OK(dup_file_fsp(fsp, access_mask, share_access,
+ create_options, &dup_fsp))) {
+ return NULL;
+ }
+
+ return dup_fsp;
+}
+
+/****************************************************************************
+ Open a file with a share mode - old openX method - map into NTCreate.
+****************************************************************************/
+
+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 access_mask;
+ uint32 share_mode;
+ uint32 create_disposition;
+ uint32 create_options = 0;
+
+ DEBUG(10,("map_open_params_to_ntcreate: fname = %s, deny_mode = 0x%x, "
+ "open_func = 0x%x\n",
+ fname, (unsigned int)deny_mode, (unsigned int)open_func ));
+
+ /* Create the NT compatible access_mask. */
+ switch (GET_OPENX_MODE(deny_mode)) {
+ case DOS_OPEN_EXEC: /* Implies read-only - used to be FILE_READ_DATA */
+ case DOS_OPEN_RDONLY:
+ access_mask = FILE_GENERIC_READ;
+ break;
+ case DOS_OPEN_WRONLY:
+ access_mask = FILE_GENERIC_WRITE;
+ break;
+ case DOS_OPEN_RDWR:
+ case DOS_OPEN_FCB:
+ access_mask = FILE_GENERIC_READ|FILE_GENERIC_WRITE;
+ break;
+ default:
+ DEBUG(10,("map_open_params_to_ntcreate: bad open mode = 0x%x\n",
+ (unsigned int)GET_OPENX_MODE(deny_mode)));
+ return False;
+ }
+
+ /* Create the NT compatible create_disposition. */
+ switch (open_func) {
+ case OPENX_FILE_EXISTS_FAIL|OPENX_FILE_CREATE_IF_NOT_EXIST:
+ create_disposition = FILE_CREATE;
+ break;
+
+ case OPENX_FILE_EXISTS_OPEN:
+ create_disposition = FILE_OPEN;
+ break;
+
+ case OPENX_FILE_EXISTS_OPEN|OPENX_FILE_CREATE_IF_NOT_EXIST:
+ create_disposition = FILE_OPEN_IF;
+ break;
+
+ case OPENX_FILE_EXISTS_TRUNCATE:
+ create_disposition = FILE_OVERWRITE;
+ break;
+
+ case OPENX_FILE_EXISTS_TRUNCATE|OPENX_FILE_CREATE_IF_NOT_EXIST:
+ create_disposition = FILE_OVERWRITE_IF;
+ break;
+
+ default:
+ /* From samba4 - to be confirmed. */
+ if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_EXEC) {
+ create_disposition = FILE_CREATE;
+ break;
+ }
+ DEBUG(10,("map_open_params_to_ntcreate: bad "
+ "open_func 0x%x\n", (unsigned int)open_func));
+ return False;
+ }
+
+ /* Create the NT compatible share modes. */
+ switch (GET_DENY_MODE(deny_mode)) {
+ case DENY_ALL:
+ share_mode = FILE_SHARE_NONE;
+ break;
+
+ case DENY_WRITE:
+ share_mode = FILE_SHARE_READ;
+ break;
+
+ case DENY_READ:
+ share_mode = FILE_SHARE_WRITE;
+ break;
+
+ case DENY_NONE:
+ share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
+ break;
+
+ case DENY_DOS:
+ create_options |= NTCREATEX_OPTIONS_PRIVATE_DENY_DOS;
+ if (is_executable(fname)) {
+ share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
+ } else {
+ if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_RDONLY) {
+ share_mode = FILE_SHARE_READ;
+ } else {
+ share_mode = FILE_SHARE_NONE;
+ }
+ }
+ break;
+
+ case DENY_FCB:
+ create_options |= NTCREATEX_OPTIONS_PRIVATE_DENY_FCB;
+ share_mode = FILE_SHARE_NONE;
+ break;
+
+ default:
+ DEBUG(10,("map_open_params_to_ntcreate: bad deny_mode 0x%x\n",
+ (unsigned int)GET_DENY_MODE(deny_mode) ));
+ return False;
+ }
+
+ DEBUG(10,("map_open_params_to_ntcreate: file %s, access_mask = 0x%x, "
+ "share_mode = 0x%x, create_disposition = 0x%x, "
+ "create_options = 0x%x\n",
+ fname,
+ (unsigned int)access_mask,
+ (unsigned int)share_mode,
+ (unsigned int)create_disposition,
+ (unsigned int)create_options ));
+
+ if (paccess_mask) {
+ *paccess_mask = access_mask;
+ }
+ if (pshare_mode) {
+ *pshare_mode = share_mode;
+ }
+ if (pcreate_disposition) {
+ *pcreate_disposition = create_disposition;
+ }
+ if (pcreate_options) {
+ *pcreate_options = create_options;
+ }
+
+ return True;
+
+}
+
+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.dev = lck->dev;
+ state.inode = lck->ino;
+
+ 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_shared1(connection_struct *conn,char *fname, SMB_STRUCT_STAT *psbuf,
- uint32 desired_access,
- int share_mode,int ofun, uint32 new_dos_mode,
- int oplock_request,
- int *Access,int *paction)
+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;
- int deny_mode = GET_DENY_MODE(share_mode);
- BOOL allow_share_delete = GET_ALLOW_SHARE_DELETE(share_mode);
- BOOL delete_on_close = GET_DELETE_ON_CLOSE_FLAG(share_mode);
BOOL file_existed = VALID_STAT(*psbuf);
- BOOL fcbopen = False;
BOOL def_acl = False;
- BOOL add_share_mode = True;
- BOOL internal_only_open = False;
SMB_DEV_T dev = 0;
SMB_INO_T inode = 0;
- int num_share_modes = 0;
- BOOL all_current_opens_are_level_II = False;
- BOOL fsp_open = False;
+ NTSTATUS fsp_open = NT_STATUS_ACCESS_DENIED;
files_struct *fsp = NULL;
- int open_mode=0;
- uint16 port = 0;
- mode_t new_mode = (mode_t)0;
- int action;
- uint32 existing_dos_mode = 0;
+ mode_t new_unx_mode = (mode_t)0;
+ mode_t unx_mode = (mode_t)0;
+ int info;
+ uint32 existing_dos_attributes = 0;
struct pending_message_list *pml = NULL;
uint16 mid = get_current_mid();
- /* We add aARCH to this as this mode is only used if the file is created new. */
- mode_t mode = unix_mode(conn,new_dos_mode | aARCH,fname, True);
+ 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;
- if (oplock_request == INTERNAL_OPEN_ONLY) {
- internal_only_open = True;
- oplock_request = 0;
+ if (conn->printer) {
+ /*
+ * Printers are handled completely differently.
+ * Most of the passed parameters are ignored.
+ */
+
+ if (pinfo) {
+ *pinfo = FILE_WAS_CREATED;
+ }
+
+ DEBUG(10, ("open_file_ntcreate: printer open fname=%s\n", fname));
+
+ return print_fsp_open(conn, fname, result);
+ }
+
+ if (!parent_dirname_talloc(tmp_talloc_ctx(), fname, &parent_dir,
+ &newname)) {
+ return NT_STATUS_NO_MEMORY;
}
+ /* 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 = 0x%x create_options=0x%x "
+ "unix mode=0%o oplock_request=%d\n",
+ fname, new_dos_attributes, access_mask, share_access,
+ create_disposition, create_options, unx_mode,
+ oplock_request));
+
if ((pml = get_open_deferred_message(mid)) != NULL) {
- struct dev_inode_bundle dib;
+ struct deferred_open_record *state =
+ (struct deferred_open_record *)pml->private_data.data;
+
+ /* Remember the absolute time of the original
+ request with this mid. We'll use it later to
+ see if this has timed out. */
+
+ request_time = pml->request_time;
+
+ /* Remove the deferred open entry under lock. */
+ lck = get_share_mode_lock(NULL, state->dev, state->inode, NULL, NULL);
+ if (lck == NULL) {
+ DEBUG(0, ("could not get share mode lock\n"));
+ } else {
+ del_deferred_open_entry(lck, mid);
+ TALLOC_FREE(lck);
+ }
+
+ /* Ensure we don't reprocess this message. */
+ remove_deferred_open_smb_message(mid);
+ }
+
+ 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);
+ }
+
+ /* ignore any oplock requests if oplocks are disabled */
+ if (!lp_oplocks(SNUM(conn)) || global_client_failed_oplock_break ||
+ IS_VETO_OPLOCK_PATH(conn, fname)) {
+ /* 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. */
+ DEBUG(5,("open_file_ntcreate: OS/2 long filenames are not "
+ "supported.\n"));
+ if (use_nt_status()) {
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
+ return NT_STATUS_DOS(ERRDOS, ERRcannotopen);
+ }
+
+ switch( create_disposition ) {
+ /*
+ * Currently we're using FILE_SUPERSEDE as the same as
+ * FILE_OVERWRITE_IF but they really are
+ * different. FILE_SUPERSEDE deletes an existing file
+ * (requiring delete access) then recreates it.
+ */
+ case FILE_SUPERSEDE:
+ /* If file exists replace/overwrite. If file doesn't
+ * exist create. */
+ flags2 |= (O_CREAT | O_TRUNC);
+ break;
+
+ case FILE_OVERWRITE_IF:
+ /* If file exists replace/overwrite. If file doesn't
+ * exist create. */
+ flags2 |= (O_CREAT | O_TRUNC);
+ break;
- memcpy(&dib, pml->private_data.data, sizeof(dib));
+ case FILE_OPEN:
+ /* If file exists open. If file doesn't exist error. */
+ if (!file_existed) {
+ DEBUG(5,("open_file_ntcreate: FILE_OPEN "
+ "requested for file %s and file "
+ "doesn't exist.\n", fname ));
+ errno = ENOENT;
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
+ break;
- /* There could be a race condition where the dev/inode pair
- has changed since we deferred the message. If so, just
- remove the deferred open entry and return sharing violation. */
+ case FILE_OVERWRITE:
+ /* If file exists overwrite. If file doesn't exist
+ * error. */
+ if (!file_existed) {
+ DEBUG(5,("open_file_ntcreate: FILE_OVERWRITE "
+ "requested for file %s and file "
+ "doesn't exist.\n", fname ));
+ errno = ENOENT;
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
+ flags2 |= O_TRUNC;
+ break;
- /* If the timeout value is non-zero, we need to just
- return sharing violation. Don't retry the open
- as we were not notified of a close and we don't want to
- trigger another spurious oplock break. */
+ case FILE_CREATE:
+ /* If file exists error. If file doesn't exist
+ * create. */
+ if (file_existed) {
+ DEBUG(5,("open_file_ntcreate: FILE_CREATE "
+ "requested for file %s and file "
+ "already exists.\n", fname ));
+ if (S_ISDIR(psbuf->st_mode)) {
+ errno = EISDIR;
+ } else {
+ errno = EEXIST;
+ }
+ return map_nt_error_from_unix(errno);
+ }
+ flags2 |= (O_CREAT|O_EXCL);
+ break;
- if (!file_existed || dib.dev != psbuf->st_dev || dib.inode != psbuf->st_ino ||
- pml->msg_time.tv_sec || pml->msg_time.tv_usec) {
- /* Ensure we don't reprocess this message. */
- remove_sharing_violation_open_smb_message(mid);
+ case FILE_OPEN_IF:
+ /* If file exists open. If file doesn't exist
+ * create. */
+ flags2 |= O_CREAT;
+ break;
- /* Now remove the deferred open entry under lock. */
- lock_share_entry(conn, dib.dev, dib.inode);
- delete_defered_open_entry_record(conn, dib.dev, dib.inode);
- unlock_share_entry(conn, dib.dev, dib.inode);
+ default:
+ return NT_STATUS_INVALID_PARAMETER;
+ }
- set_saved_error_triple(ERRDOS, ERRbadshare, NT_STATUS_SHARING_VIOLATION);
- return NULL;
+ /* We only care about matching attributes on file exists and
+ * overwrite. */
+
+ if (file_existed && ((create_disposition == FILE_OVERWRITE) ||
+ (create_disposition == FILE_OVERWRITE_IF))) {
+ if (!open_match_attributes(conn, fname,
+ existing_dos_attributes,
+ new_dos_attributes, psbuf->st_mode,
+ unx_mode, &new_unx_mode)) {
+ DEBUG(5,("open_file_ntcreate: attributes missmatch "
+ "for file %s (%x %x) (0%o, 0%o)\n",
+ fname, existing_dos_attributes,
+ new_dos_attributes,
+ (unsigned int)psbuf->st_mode,
+ (unsigned int)unx_mode ));
+ errno = EACCES;
+ return NT_STATUS_ACCESS_DENIED;
}
- /* Ensure we don't reprocess this message. */
- remove_sharing_violation_open_smb_message(mid);
-
}
- if (conn->printer) {
- /* printers are handled completely differently. Most of the passed parameters are
- ignored */
- if (Access)
- *Access = DOS_OPEN_WRONLY;
- if (paction)
- *paction = FILE_WAS_CREATED;
- return print_fsp_open(conn, fname);
+ /* This is a nasty hack - must fix... JRA. */
+ if (access_mask == MAXIMUM_ALLOWED_ACCESS) {
+ open_access_mask = access_mask = FILE_GENERIC_ALL;
}
- DEBUG(10,("open_file_shared: fname = %s, dos_attrs = %x, share_mode = %x, ofun = %x, mode = %o, oplock request = %d\n",
- fname, new_dos_mode, share_mode, ofun, (int)mode, oplock_request ));
+ /*
+ * Convert GENERIC bits to specific bits.
+ */
- if (!check_name(fname,conn)) {
- return NULL;
- }
+ se_map_generic(&access_mask, &file_generic_mapping);
+ open_access_mask = access_mask;
- new_dos_mode &= SAMBA_ATTRIBUTES_MASK;
- if (file_existed) {
- existing_dos_mode = dos_mode(conn, fname, psbuf);
+ if (flags2 & O_TRUNC) {
+ open_access_mask |= FILE_WRITE_DATA; /* This will cause oplock breaks. */
}
- /* ignore any oplock requests if oplocks are disabled */
- if (!lp_oplocks(SNUM(conn)) || global_client_failed_oplock_break) {
- oplock_request = 0;
- }
+ DEBUG(10, ("open_file_ntcreate: fname=%s, after mapping "
+ "access_mask=0x%x\n", fname, access_mask ));
- /* this is for OS/2 long file names - say we don't support them */
- if (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);
- DEBUG(5,("open_file_shared: OS/2 long filenames are not supported.\n"));
- return NULL;
- }
+ /*
+ * Note that we ignore the append flag as append does not
+ * mean the same thing under DOS and Unix.
+ */
- if ((GET_FILE_OPEN_DISPOSITION(ofun) == FILE_EXISTS_FAIL) && file_existed) {
- DEBUG(5,("open_file_shared: create new requested for file %s and file already exists.\n",
- fname ));
- if (S_ISDIR(psbuf->st_mode)) {
- errno = EISDIR;
+ if (access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) {
+ /* 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 {
- errno = EEXIST;
- }
- return NULL;
- }
-
- if (CAN_WRITE(conn) && (GET_FILE_CREATE_DISPOSITION(ofun) == FILE_CREATE_IF_NOT_EXIST))
- flags2 |= O_CREAT;
-
- if (CAN_WRITE(conn) && (GET_FILE_OPEN_DISPOSITION(ofun) == FILE_EXISTS_TRUNCATE))
- flags2 |= O_TRUNC;
-
- /* We only care about matching attributes on file exists and truncate. */
- if (file_existed && (GET_FILE_OPEN_DISPOSITION(ofun) == FILE_EXISTS_TRUNCATE)) {
- if (!open_match_attributes(conn, fname, existing_dos_mode, new_dos_mode,
- psbuf->st_mode, mode, &new_mode)) {
- DEBUG(5,("open_file_shared: attributes missmatch for file %s (%x %x) (0%o, 0%o)\n",
- fname, existing_dos_mode, new_dos_mode,
- (int)psbuf->st_mode, (int)mode ));
- errno = EACCES;
- return NULL;
+ flags = O_WRONLY;
}
+ } else {
+ flags = O_RDONLY;
}
- if (GET_FILE_OPEN_DISPOSITION(ofun) == FILE_EXISTS_FAIL)
- flags2 |= O_EXCL;
-
- /* note that we ignore the append flag as
- append does not mean the same thing under dos and unix */
-
- switch (GET_OPEN_MODE(share_mode)) {
- case DOS_OPEN_RDONLY:
- flags = O_RDONLY;
- if (desired_access == 0)
- desired_access = FILE_READ_DATA;
- break;
- case DOS_OPEN_WRONLY:
- flags = O_WRONLY;
- if (desired_access == 0)
- desired_access = FILE_WRITE_DATA;
- break;
- case DOS_OPEN_FCB:
- fcbopen = True;
- flags = O_RDWR;
- if (desired_access == 0)
- desired_access = FILE_READ_DATA|FILE_WRITE_DATA;
- break;
- case DOS_OPEN_RDWR:
- case DOS_OPEN_EXEC:
- flags = O_RDWR;
- if (desired_access == 0)
- desired_access = FILE_READ_DATA|FILE_WRITE_DATA;
- break;
- default:
- /* Force DOS error. */
- set_saved_error_triple(ERRDOS, ERRinvalidparam, NT_STATUS_INVALID);
- return NULL;
- }
+ /*
+ * Currently we only look at FILE_WRITE_THROUGH for create options.
+ */
#if defined(O_SYNC)
- if (GET_FILE_SYNC_OPENMODE(share_mode)) {
+ if ((create_options & FILE_WRITE_THROUGH) && lp_strict_sync(SNUM(conn))) {
flags2 |= O_SYNC;
}
#endif /* O_SYNC */
- if (flags != O_RDONLY && file_existed &&
- (!CAN_WRITE(conn) || IS_DOS_READONLY(existing_dos_mode))) {
- if (!fcbopen) {
- DEBUG(5,("open_file_shared: read/write access requested for file %s on read only %s\n",
- fname, !CAN_WRITE(conn) ? "share" : "file" ));
- errno = EACCES;
- return NULL;
- }
- flags = O_RDONLY;
+ if (!CAN_WRITE(conn)) {
+ /*
+ * We should really return a permission denied error if either
+ * O_CREAT or O_TRUNC are set, but for compatibility with
+ * older versions of Samba we just AND them out.
+ */
+ flags2 &= ~(O_CREAT|O_TRUNC);
}
- if (deny_mode > DENY_NONE && deny_mode!=DENY_FCB) {
- DEBUG(2,("Invalid deny mode %d on file %s\n",deny_mode,fname));
- errno = EINVAL;
- return NULL;
+ /*
+ * Ensure we can't write on a read-only share or file.
+ */
+
+ if (flags != O_RDONLY && file_existed &&
+ (!CAN_WRITE(conn) || IS_DOS_READONLY(existing_dos_attributes))) {
+ DEBUG(5,("open_file_ntcreate: write access requested for "
+ "file %s on read only %s\n",
+ fname, !CAN_WRITE(conn) ? "share" : "file" ));
+ errno = EACCES;
+ return NT_STATUS_ACCESS_DENIED;
}
- if (desired_access && ((desired_access & ~(SYNCHRONIZE_ACCESS|FILE_READ_ATTRIBUTES|FILE_WRITE_ATTRIBUTES))==0) &&
- ((desired_access & (SYNCHRONIZE_ACCESS|FILE_READ_ATTRIBUTES|FILE_WRITE_ATTRIBUTES)) != 0)) {
- /* Stat open that doesn't trigger oplock breaks or share mode checks... ! JRA. */
- deny_mode = DENY_NONE;
- if (file_existed) {
- oplock_request = 0;
- add_share_mode = False;
- flags2 &= ~O_CREAT;
- }
+ status = file_new(conn, &fsp);
+ if(!NT_STATUS_IS_OK(status)) {
+ return status;
}
- fsp = file_new(conn);
- if(!fsp)
- return NULL;
+ fsp->dev = psbuf->st_dev;
+ fsp->inode = psbuf->st_ino;
+ fsp->share_access = share_access;
+ fsp->fh->private_options = create_options;
+ fsp->access_mask = open_access_mask; /* We change this to the
+ * requested access_mask after
+ * the open is done. */
+ /* 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) {
-
dev = psbuf->st_dev;
inode = psbuf->st_ino;
- lock_share_entry(conn, dev, inode);
+ lck = get_share_mode_lock(NULL, dev, inode,
+ conn->connectpath,
+ fname);
+
+ if (lck == NULL) {
+ file_free(fsp);
+ DEBUG(0, ("Could not get share mode lock\n"));
+ 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);
+ 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 */
+ TALLOC_FREE(lck);
+ file_free(fsp);
+ return status;
+ }
- num_share_modes = open_mode_check(conn, fname, dev, inode,
- desired_access,
- share_mode,
- &flags, &oplock_request, &all_current_opens_are_level_II);
- if(num_share_modes == -1) {
+ if (!NT_STATUS_IS_OK(status)) {
+ uint32 can_access_mask;
+ BOOL can_access = True;
+
+ SMB_ASSERT(NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION));
+
+ /* Check if this can be done with the deny_dos and fcb
+ * calls. */
+ if (create_options &
+ (NTCREATEX_OPTIONS_PRIVATE_DENY_DOS|
+ NTCREATEX_OPTIONS_PRIVATE_DENY_FCB)) {
+ files_struct *fsp_dup;
+
+ /* Use the client requested access mask here,
+ * not the one we open with. */
+ fsp_dup = fcb_or_dos_open(conn, fname, dev,
+ inode, access_mask,
+ share_access,
+ create_options);
+
+ if (fsp_dup) {
+ TALLOC_FREE(lck);
+ file_free(fsp);
+ if (pinfo) {
+ *pinfo = FILE_WAS_OPENED;
+ }
+ conn->num_files_open++;
+ *result = fsp_dup;
+ return NT_STATUS_OK;
+ }
+ }
/*
- * This next line is a subtlety we need for 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.
+ * This next line is a subtlety we need for
+ * 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. 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)),mode,desired_access);
- DEBUG(4,("open_file_shared : 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)),(int)mode,(int)fsp_open ));
+ 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 (!fsp_open && errno) {
- /* Default error. */
- set_saved_error_triple(ERRDOS, ERRnoaccess, NT_STATUS_ACCESS_DENIED);
+ if (((can_access_mask & FILE_WRITE_DATA) && !CAN_WRITE(conn)) ||
+ !can_access_file(conn,fname,psbuf,can_access_mask)) {
+ can_access = False;
}
/*
- * If we're returning a share violation, ensure we cope with
- * the braindead 1 second delay.
+ * If we're returning a share violation, ensure we
+ * cope with the braindead 1 second delay.
*/
- if (!internal_only_open) {
- NTSTATUS status;
- get_saved_error_triple(NULL, NULL, &status);
- if (NT_STATUS_EQUAL(status,NT_STATUS_SHARING_VIOLATION)) {
- /* The fsp->open_time here represents the current time of day. */
- defer_open_sharing_error(conn, &fsp->open_time, fname, dev, inode);
+ if (!(oplock_request & INTERNAL_OPEN_ONLY) &&
+ lp_defer_sharing_violations()) {
+ struct timeval timeout;
+ struct deferred_open_record state;
+ int timeout_usecs;
+
+ /* this is a hack to speed up torture tests
+ in 'make test' */
+ timeout_usecs = lp_parm_int(SNUM(conn),
+ "smbd","sharedelay",
+ SHARING_VIOLATION_USEC_WAIT);
+
+ /* 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. */
+
+ timeout = timeval_set(0, timeout_usecs);
+
+ /* 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 = False;
+ state.dev = dev;
+ state.inode = inode;
+
+ if (!request_timed_out(request_time,
+ timeout)) {
+ defer_open(lck, request_time, timeout,
+ &state);
}
}
- unlock_share_entry(conn, dev, inode);
- if (fsp_open) {
- fd_close(conn, fsp);
+ TALLOC_FREE(lck);
+ if (can_access) {
/*
* We have detected a sharing violation here
* so return the correct error code
*/
- set_saved_error_triple(ERRDOS, ERRbadshare, NT_STATUS_SHARING_VIOLATION);
+ status = NT_STATUS_SHARING_VIOLATION;
+ } else {
+ status = NT_STATUS_ACCESS_DENIED;
}
file_free(fsp);
- return NULL;
+ return status;
}
/*
*/
}
+ SMB_ASSERT(!file_existed || (lck != NULL));
+
/*
* Ensure we pay attention to default ACLs on directories if required.
*/
if ((flags2 & O_CREAT) && lp_inherit_acls(SNUM(conn)) &&
- (def_acl = directory_has_default_acl(conn, parent_dirname(fname))))
- mode = 0777;
+ (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",
- flags,flags2,(int)mode));
+ 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)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,mode,desired_access);
-
- if (!fsp_open && (flags == O_RDWR) && (errno != ENOENT) && fcbopen) {
- if((fsp_open = open_file(fsp,conn,fname,psbuf,O_RDONLY,mode,desired_access)) == True)
- flags = O_RDONLY;
- }
+ fsp_open = open_file(fsp, conn, parent_dir, newname, fname, psbuf,
+ flags|flags2, unx_mode, access_mask,
+ open_access_mask);
- if (!fsp_open) {
- if(file_existed)
- unlock_share_entry(conn, dev, inode);
+ if (!NT_STATUS_IS_OK(fsp_open)) {
+ if (lck != NULL) {
+ TALLOC_FREE(lck);
+ }
file_free(fsp);
- return NULL;
+ return fsp_open;
}
- /*
- * Deal with the race condition where two smbd's detect the file doesn't
- * exist and do the create at the same time. One of them will win and
- * set a share mode, the other (ie. this one) should check if the
- * requested share mode for this create is allowed.
- */
+ if (!file_existed) {
- if (!file_existed) {
+ /*
+ * Deal with the race condition where two smbd's detect the
+ * file doesn't exist and do the create at the same time. One
+ * of them will win and set a share mode, the other (ie. this
+ * one) should check if the requested share mode for this
+ * create is allowed.
+ */
/*
* Now the file exists and fsp is successfully opened,
dev = fsp->dev;
inode = fsp->inode;
- lock_share_entry_fsp(fsp);
+ lck = get_share_mode_lock(NULL, dev, inode,
+ conn->connectpath,
+ fname);
- num_share_modes = open_mode_check(conn, fname, dev, inode,
- desired_access,
- share_mode,
- &flags, &oplock_request, &all_current_opens_are_level_II);
+ if (lck == NULL) {
+ 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;
+ }
- if(num_share_modes == -1) {
- /*
- * If we're returning a share violation, ensure we cope with
- * the braindead 1 second delay.
- */
+ status = open_mode_check(conn, fname, lck,
+ access_mask, share_access,
+ create_options, &file_existed);
- NTSTATUS status;
- get_saved_error_triple(NULL, NULL, &status);
- if (NT_STATUS_EQUAL(status,NT_STATUS_SHARING_VIOLATION)) {
- /* The fsp->open_time here represents the current time of day. */
- defer_open_sharing_error(conn, &fsp->open_time, fname, dev, inode);
- }
+ if (!NT_STATUS_IS_OK(status)) {
+ struct deferred_open_record state;
- unlock_share_entry_fsp(fsp);
- fd_close(conn,fsp);
+ fd_close(conn, fsp);
file_free(fsp);
- /*
- * We have detected a sharing violation here, so
- * return the correct code.
- */
- set_saved_error_triple(ERRDOS, ERRbadshare, NT_STATUS_SHARING_VIOLATION);
- return NULL;
- }
- /*
- * If there are any share modes set then the file *did*
- * exist. Ensure we return the correct value for action.
- */
-
- if (num_share_modes > 0)
- file_existed = True;
+ state.delayed_for_oplocks = False;
+ state.dev = dev;
+ state.inode = inode;
+
+ /* Do it all over again immediately. In the second
+ * round we will find that the file existed and handle
+ * the DELETE_PENDING and FCB cases correctly. No need
+ * to duplicate the code here. Essentially this is a
+ * "goto top of this function", but don't tell
+ * anybody... */
+
+ defer_open(lck, request_time, timeval_zero(),
+ &state);
+ TALLOC_FREE(lck);
+ return status;
+ }
/*
* We exit this block with the share entry *locked*.....
*/
+
}
+ SMB_ASSERT(lck != NULL);
+
/* note that we ignore failure for the following. It is
basically a hack for NFS, and NFS will never set one of
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 */
- kernel_flock(fsp, deny_mode);
+ the kernel refuses the operations then the kernel is wrong.
+ note that GPFS supports it as well - jmcd */
+
+ 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 (flags2&O_TRUNC) {
/*
- * We are modifing the file after open - update the stat struct..
+ * We are modifing the file after open - update the stat
+ * struct..
*/
- if ((SMB_VFS_FTRUNCATE(fsp,fsp->fd,0) == -1) || (SMB_VFS_FSTAT(fsp,fsp->fd,psbuf)==-1)) {
- unlock_share_entry_fsp(fsp);
+ 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;
}
}
- switch (flags) {
- case O_RDONLY:
- open_mode = DOS_OPEN_RDONLY;
- break;
- case O_RDWR:
- open_mode = DOS_OPEN_RDWR;
- break;
- case O_WRONLY:
- open_mode = DOS_OPEN_WRONLY;
- break;
- }
-
- fsp->share_mode = SET_DENY_MODE(deny_mode) |
- SET_OPEN_MODE(open_mode) |
- SET_ALLOW_SHARE_DELETE(allow_share_delete);
-
- DEBUG(10,("open_file_shared : share_mode = %x\n", fsp->share_mode ));
-
- if (Access) {
- (*Access) = (SET_DENY_MODE(deny_mode) | SET_OPEN_MODE(open_mode));
- }
+ /* Record the options we were opened with. */
+ fsp->share_access = share_access;
+ fsp->fh->private_options = create_options;
+ fsp->access_mask = access_mask;
- action = 0;
+ 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 (file_existed && !(flags2 & O_TRUNC))
- action = FILE_WAS_OPENED;
- if (file_existed && (flags2 & O_TRUNC))
- action = FILE_WAS_OVERWRITTEN;
- if (!file_existed) {
- action = 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 (!(flags2 & O_TRUNC)) {
+ info = FILE_WAS_OPENED;
+ } else {
+ info = FILE_WAS_OVERWRITTEN;
}
+ } else {
+ info = FILE_WAS_CREATED;
}
- if (paction) {
- *paction = action;
+ if (pinfo) {
+ *pinfo = info;
}
/*
* file structs.
*/
- if(oplock_request && (num_share_modes == 0) &&
- !IS_VETO_OPLOCK_PATH(conn,fname) && set_file_oplock(fsp, oplock_request) ) {
- port = global_oplock_port;
- } else if (oplock_request && all_current_opens_are_level_II) {
- port = global_oplock_port;
- oplock_request = LEVEL_II_OPLOCK;
- set_file_oplock(fsp, oplock_request);
- } else {
- port = 0;
- oplock_request = 0;
+ if ((fsp->oplock_type != NO_OPLOCK) &&
+ (fsp->oplock_type != FAKE_LEVEL_II_OPLOCK)) {
+ if (!set_file_oplock(fsp, fsp->oplock_type)) {
+ /* Could not get the kernel oplock */
+ fsp->oplock_type = NO_OPLOCK;
+ }
}
+ set_share_mode(lck, fsp, current_user.ut.uid, 0, fsp->oplock_type);
- if (add_share_mode) {
- set_share_mode(fsp, port, oplock_request);
- }
+ if (info == FILE_WAS_OVERWRITTEN || info == FILE_WAS_CREATED ||
+ info == FILE_WAS_SUPERSEDED) {
- if (delete_on_close) {
- uint32 dosmode = existing_dos_mode;
- NTSTATUS result;
+ /* Handle strange delete on close create semantics. */
+ if (create_options & FILE_DELETE_ON_CLOSE) {
+ status = can_set_delete_on_close(fsp, True, new_dos_attributes);
- if (action == FILE_WAS_OVERWRITTEN || action == FILE_WAS_CREATED) {
- dosmode = new_dos_mode;
- }
- result = set_delete_on_close_internal(fsp, delete_on_close, dosmode);
-
- if (NT_STATUS_V(result) != NT_STATUS_V(NT_STATUS_OK)) {
- uint8 u_e_c;
- uint32 u_e_code;
- /* Remember to delete the mode we just added. */
- if (add_share_mode) {
- del_share_mode(fsp, NULL);
+ 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;
}
- unlock_share_entry_fsp(fsp);
- fd_close(conn,fsp);
- file_free(fsp);
- ntstatus_to_dos(result, &u_e_c, &u_e_code);
- set_saved_error_triple(u_e_c, u_e_code, result);
- return NULL;
+ /* 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 (action == FILE_WAS_OVERWRITTEN || action == FILE_WAS_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, new_dos_mode | aARCH, NULL, True);
+ if (lp_map_archive(SNUM(conn)) ||
+ lp_store_dos_attributes(SNUM(conn))) {
+ file_set_dosmode(conn, fname,
+ new_dos_attributes | aARCH, NULL,
+ parent_dir);
}
}
if (!file_existed && !def_acl) {
- int saved_errno = errno; /* We might get ENOSYS in the next call.. */
+ int saved_errno = errno; /* We might get ENOSYS in the next
+ * call.. */
- if (SMB_VFS_FCHMOD_ACL(fsp, fsp->fd, mode) == -1 && errno == ENOSYS)
+ if (SMB_VFS_FCHMOD_ACL(fsp, fsp->fh->fd, unx_mode) == -1 &&
+ errno == ENOSYS) {
errno = saved_errno; /* Ignore ENOSYS */
+ }
- } else if (new_mode) {
+ } else if (new_unx_mode) {
int ret = -1;
/* Attributes need changing. File already existed. */
{
- int saved_errno = errno; /* We might get ENOSYS in the next call.. */
- ret = SMB_VFS_FCHMOD_ACL(fsp, fsp->fd, new_mode);
+ int saved_errno = errno; /* We might get ENOSYS in the
+ * next call.. */
+ ret = SMB_VFS_FCHMOD_ACL(fsp, fsp->fh->fd,
+ new_unx_mode);
if (ret == -1 && errno == ENOSYS) {
errno = saved_errno; /* Ignore ENOSYS */
} else {
- DEBUG(5, ("open_file_shared: failed to reset attributes of file %s to 0%o\n",
- fname, (int)new_mode));
+ DEBUG(5, ("open_file_ntcreate: reset "
+ "attributes of file %s to 0%o\n",
+ fname, (unsigned int)new_unx_mode));
ret = 0; /* Don't do the fchmod below. */
}
}
- if ((ret == -1) && (SMB_VFS_FCHMOD(fsp, fsp->fd, new_mode) == -1))
- DEBUG(5, ("open_file_shared: failed to reset attributes of file %s to 0%o\n",
- fname, (int)new_mode));
+ if ((ret == -1) &&
+ (SMB_VFS_FCHMOD(fsp, fsp->fh->fd, new_unx_mode) == -1))
+ DEBUG(5, ("open_file_ntcreate: failed to reset "
+ "attributes of file %s to 0%o\n",
+ fname, (unsigned int)new_unx_mode));
}
- /* If this is a successful open, we must remove any deferred open records. */
- delete_defered_open_entry_record(conn, fsp->dev, fsp->inode);
- unlock_share_entry_fsp(fsp);
+ /* If this is a successful open, we must remove any deferred open
+ * records. */
+ del_deferred_open_entry(lck, mid);
+ TALLOC_FREE(lck);
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;
+ if (!VALID_STAT(*psbuf)) {
+ 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;
}
/****************************************************************************
return ret;
}
-/****************************************************************************
- Open a directory from an NT SMB call.
-****************************************************************************/
-
-files_struct *open_directory(connection_struct *conn, const char *fname, SMB_STRUCT_STAT *psbuf,
- uint32 desired_access, int share_mode, int smb_ofun, int *action)
+static NTSTATUS mkdir_internal(connection_struct *conn, const char *name,
+ SMB_STRUCT_STAT *psbuf)
{
- extern struct current_user current_user;
- BOOL got_stat = False;
- files_struct *fsp = file_new(conn);
- BOOL delete_on_close = GET_DELETE_ON_CLOSE_FLAG(share_mode);
+ int ret= -1;
+ 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;
+ }
- if(!fsp)
- return NULL;
+ status = check_name(conn, name);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
- if (VALID_STAT(*psbuf))
- got_stat = True;
+ if (!parent_dirname_talloc(tmp_talloc_ctx(), name, &parent_dir,
+ &dirname)) {
+ return NT_STATUS_NO_MEMORY;
+ }
- if (got_stat && (GET_FILE_OPEN_DISPOSITION(smb_ofun) == FILE_EXISTS_FAIL)) {
- file_free(fsp);
- errno = EEXIST; /* Setup so correct error is returned to client. */
- return NULL;
+ mode = unix_mode(conn, aDIR, name, parent_dir);
+
+ if ((ret=SMB_VFS_MKDIR(conn, name, mode)) != 0) {
+ return map_nt_error_from_unix(errno);
}
- if (GET_FILE_CREATE_DISPOSITION(smb_ofun) == FILE_CREATE_IF_NOT_EXIST) {
+ /* Ensure we're checking for a symlink here.... */
+ /* We don't want to get caught by a symlink racer. */
- if (got_stat) {
+ 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,("open_directory: %s is not a directory !\n", fname ));
- file_free(fsp);
- errno = EACCES;
- return NULL;
- }
- *action = FILE_WAS_OPENED;
+ if (!S_ISDIR(psbuf->st_mode)) {
+ DEBUG(0, ("Directory just '%s' created is not a directory\n",
+ name));
+ return NT_STATUS_ACCESS_DENIED;
+ }
- } else {
+ if (lp_inherit_perms(SNUM(conn))) {
+ inherit_access_acl(conn, parent_dir, name, mode);
+ }
+
+ /*
+ * 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_action(conn, parent_dir, dirname, FILE_NOTIFY_CHANGE_DIR_NAME,
+ NOTIFY_ACTION_ADDED);
+
+ return NT_STATUS_OK;
+}
+
+/****************************************************************************
+ Open a directory from an NT SMB call.
+****************************************************************************/
+
+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,
+ int *pinfo,
+ files_struct **result)
+{
+ files_struct *fsp = NULL;
+ BOOL dir_existed = VALID_STAT(*psbuf) ? True : 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",
+ fname,
+ (unsigned int)access_mask,
+ (unsigned int)share_access,
+ (unsigned int)create_options,
+ (unsigned int)create_disposition));
+
+ if (is_ntfs_stream_name(fname)) {
+ DEBUG(0,("open_directory: %s is a stream name!\n", fname ));
+ return NT_STATUS_NOT_A_DIRECTORY;
+ }
+
+ switch( create_disposition ) {
+ case FILE_OPEN:
+
+ info = FILE_WAS_OPENED;
/*
- * Try and create the directory.
+ * We want to follow symlinks here.
*/
- /* We know bad_path is false as it's caught earlier. */
+ if (SMB_VFS_STAT(conn, fname, psbuf) != 0) {
+ return map_nt_error_from_unix(errno);
+ }
+
+ break;
+
+ case FILE_CREATE:
- NTSTATUS status = mkdir_internal(conn, fname, False);
+ /* If directory exists error. If directory doesn't
+ * exist create. */
+ status = mkdir_internal(conn, fname, psbuf);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(2,("open_directory: unable to create %s. Error was %s\n",
- fname, strerror(errno) ));
- file_free(fsp);
- /* Ensure we return the correct NT status to the client. */
- set_saved_error_triple(0, 0, status);
- return NULL;
+ DEBUG(2, ("open_directory: unable to create "
+ "%s. Error was %s\n", fname,
+ nt_errstr(status)));
+ return status;
}
- /* 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) {
- file_free(fsp);
- return NULL;
- }
+ info = FILE_WAS_CREATED;
+ break;
- if(!S_ISDIR(psbuf->st_mode)) {
- DEBUG(0,("open_directory: %s is not a directory !\n", fname ));
- file_free(fsp);
- return NULL;
- }
+ case FILE_OPEN_IF:
+ /*
+ * If directory exists open. If directory doesn't
+ * exist create.
+ */
- *action = FILE_WAS_CREATED;
+ status = mkdir_internal(conn, fname, psbuf);
- }
- } else {
+ if (NT_STATUS_IS_OK(status)) {
+ info = FILE_WAS_CREATED;
+ }
- /*
- * Don't create - just check that it *was* a directory.
- */
+ if (NT_STATUS_EQUAL(status,
+ NT_STATUS_OBJECT_NAME_COLLISION)) {
+ info = FILE_WAS_OPENED;
+ status = NT_STATUS_OK;
+ }
+
+ break;
- if(!got_stat) {
- DEBUG(3,("open_directory: unable to stat name = %s. Error was %s\n",
- fname, strerror(errno) ));
- file_free(fsp);
- return NULL;
- }
+ case FILE_SUPERSEDE:
+ case FILE_OVERWRITE:
+ case FILE_OVERWRITE_IF:
+ default:
+ DEBUG(5,("open_directory: invalid create_disposition "
+ "0x%x for directory %s\n",
+ (unsigned int)create_disposition, fname));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
- if(!S_ISDIR(psbuf->st_mode)) {
- DEBUG(0,("open_directory: %s is not a directory !\n", fname ));
- file_free(fsp);
- 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;
+ }
- *action = FILE_WAS_OPENED;
+ status = file_new(conn, &fsp);
+ if(!NT_STATUS_IS_OK(status)) {
+ return status;
}
-
- DEBUG(5,("open_directory: opening directory %s\n", fname));
/*
* Setup the files_struct for it.
fsp->mode = psbuf->st_mode;
fsp->inode = psbuf->st_ino;
fsp->dev = psbuf->st_dev;
- fsp->size = psbuf->st_size;
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->share_mode = share_mode;
- fsp->desired_access = desired_access;
+
+ fsp->share_access = share_access;
+ fsp->fh->private_options = create_options;
+ fsp->access_mask = access_mask;
+
fsp->print_file = False;
fsp->modified = False;
fsp->oplock_type = NO_OPLOCK;
fsp->sent_oplock_break = NO_BREAK_SENT;
fsp->is_directory = True;
fsp->is_stat = False;
- fsp->directory_delete_on_close = False;
string_set(&fsp->fsp_name,fname);
- if (delete_on_close) {
- NTSTATUS status = set_delete_on_close_internal(fsp, delete_on_close, 0);
+ lck = get_share_mode_lock(NULL, fsp->dev, fsp->inode,
+ conn->connectpath,
+ fname);
- if (!NT_STATUS_IS_OK(status)) {
+ if (lck == NULL) {
+ DEBUG(0, ("open_directory: Could not get share mode lock for %s\n", fname));
+ file_free(fsp);
+ return NT_STATUS_SHARING_VIOLATION;
+ }
+
+ status = open_mode_check(conn, fname, lck,
+ access_mask, share_access,
+ create_options, &dir_existed);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(lck);
+ file_free(fsp);
+ return status;
+ }
+
+ set_share_mode(lck, fsp, current_user.ut.uid, 0, NO_OPLOCK);
+
+ /* 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) && !NT_STATUS_EQUAL(status, NT_STATUS_DIRECTORY_NOT_EMPTY)) {
+ TALLOC_FREE(lck);
file_free(fsp);
- return NULL;
+ return status;
+ }
+
+ 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;
}
}
- /* Change the owner if required. */
- if ((*action == FILE_WAS_CREATED) && lp_inherit_owner(SNUM(conn))) {
- change_owner_to_parent(conn, fsp, fsp->fsp_name, psbuf);
+ TALLOC_FREE(lck);
+
+ 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, 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)
{
- extern struct current_user current_user;
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->size = psbuf->st_size;
fsp->vuid = current_user.vuid;
fsp->file_pid = global_smbpid;
fsp->can_lock = False;
fsp->can_read = False;
fsp->can_write = False;
- fsp->share_mode = 0;
- fsp->desired_access = 0;
fsp->print_file = False;
fsp->modified = False;
fsp->oplock_type = NO_OPLOCK;
fsp->sent_oplock_break = NO_BREAK_SENT;
fsp->is_directory = False;
fsp->is_stat = True;
- fsp->directory_delete_on_close = False;
string_set(&fsp->fsp_name,fname);
conn->num_files_open++;
- return fsp;
+ *result = fsp;
+ return NT_STATUS_OK;
+}
+
+/****************************************************************************
+ Receive notification that one of our open files has been renamed by another
+ smbd process.
+****************************************************************************/
+
+void msg_file_was_renamed(int msg_type, struct process_id src,
+ void *buf, size_t len, void *private_data)
+{
+ files_struct *fsp;
+ char *frm = (char *)buf;
+ SMB_DEV_T dev;
+ SMB_INO_T inode;
+ 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));
+ return;
+ }
+
+ /* Unpack the message. */
+ dev = DEV_T_VAL(frm,0);
+ inode = INO_T_VAL(frm,8);
+ 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 ));
+
+ for(fsp = file_find_di_first(dev, inode); 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 ));
+ string_set(&fsp->fsp_name, newname);
+ } else {
+ /* TODO. JRA. */
+ /* Now we have the complete path we can work out if this is
+ actually within this share and adjust newname accordingly. */
+ DEBUG(10,("msg_file_was_renamed: share mismatch (sharepath %s "
+ "not sharepath %s) "
+ "fnum %d from %s -> %s\n",
+ fsp->conn->connectpath,
+ sharepath,
+ fsp->fnum,
+ fsp->fsp_name,
+ newname ));
+ }
+ }
}
git.samba.org / samba.git / blobdiff