-#define OLD_NTDOMAIN 1
-
/*
- Unix SMB/Netbios implementation.
- Version 1.9.
+ Unix SMB/CIFS implementation.
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 int DEBUGLEVEL;
-
-extern pstring sesssetup_user;
-extern uint16 global_oplock_port;
+extern struct generic_mapping file_generic_mapping;
+extern struct current_user current_user;
+extern userdom_struct current_user_info;
+extern uint16 global_smbpid;
extern BOOL global_client_failed_oplock_break;
+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, char *fname,
- int flags, mode_t mode)
+static int fd_open(struct connection_struct *conn,
+ const char *fname,
+ int flags,
+ mode_t mode)
{
- int fd = conn->vfs_ops.open(dos_to_unix(fname,False),flags,mode);
-
- /* Fix for files ending in '.' */
- if((fd == -1) && (errno == ENOENT) &&
- (strchr(fname,'.')==NULL)) {
- pstrcat(fname,".");
- fd = conn->vfs_ops.open(dos_to_unix(fname,False),flags,mode);
+ int fd;
+#ifdef O_NOFOLLOW
+ if (!lp_symlinks(SNUM(conn))) {
+ flags |= O_NOFOLLOW;
}
+#endif
+
+ fd = SMB_VFS_OPEN(conn,fname,flags,mode);
- DEBUG(10,("fd_open: name %s, mode = %d, fd = %d. %s\n", fname, (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, fd, (fd == -1) ? strerror(errno) : "" ));
return fd;
}
Close the file associated with a fsp.
****************************************************************************/
-int fd_close(struct connection_struct *conn, files_struct *fsp)
+int fd_close(struct connection_struct *conn,
+ files_struct *fsp)
{
+ 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);
}
-
/****************************************************************************
- Check a filename for the pipe string.
+ Change the ownership of a file to that of the parent directory.
+ Do this by fd if possible.
****************************************************************************/
-static void check_for_pipe(char *fname)
+void change_owner_to_parent(connection_struct *conn,
+ files_struct *fsp,
+ const char *fname,
+ SMB_STRUCT_STAT *psbuf)
{
- /* special case of pipe opens */
- char s[10];
- StrnCpy(s,fname,sizeof(s)-1);
- strlower(s);
- if (strstr(s,"pipe/")) {
- DEBUG(3,("Rejecting named pipe open for %s\n",fname));
- unix_ERR_class = ERRSRV;
- unix_ERR_code = ERRaccess;
+ const char *parent_path = parent_dirname(fname);
+ SMB_STRUCT_STAT parent_st;
+ int ret;
+
+ ret = SMB_VFS_STAT(conn, parent_path, &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) ));
+ return;
+ }
+
+ if (fsp && fsp->fh->fd != -1) {
+ become_root();
+ ret = SMB_VFS_FCHOWN(fsp, fsp->fh->fd, parent_st.st_uid, (gid_t)-1);
+ unbecome_root();
+ if (ret == -1) {
+ DEBUG(0,("change_owner_to_parent: failed to fchown "
+ "file %s to parent directory uid %u. Error "
+ "was %s\n", fname,
+ (unsigned int)parent_st.st_uid,
+ strerror(errno) ));
+ }
+
+ DEBUG(10,("change_owner_to_parent: changed new file %s to "
+ "parent directory uid %u.\n", fname,
+ (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;
+ }
+
+ /* 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;
+ }
+
+ 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;
+ }
+
+ /* 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;
+ }
+
+ 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;
+ }
+
+ 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 ));
+
+ out:
+
+ vfs_ChDir(conn,saved_dir);
}
}
Open a file.
****************************************************************************/
-static BOOL open_file(files_struct *fsp,connection_struct *conn,
- char *fname1,int flags,mode_t mode)
+static BOOL open_file(files_struct *fsp,
+ connection_struct *conn,
+ const char *fname,
+ SMB_STRUCT_STAT *psbuf,
+ int flags,
+ mode_t unx_mode,
+ uint32 access_mask)
{
- extern struct current_user current_user;
- pstring fname;
int accmode = (flags & O_ACCMODE);
- SMB_STRUCT_STAT sbuf;
+ int local_flags = flags;
+ BOOL file_existed = VALID_STAT(*psbuf);
- fsp->fd = -1;
- fsp->oplock_type = NO_OPLOCK;
+ fsp->fh->fd = -1;
errno = EPERM;
- pstrcpy(fname,fname1);
-
/* Check permissions */
/*
/* 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;
} 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;
}
}
- /* actually do the open */
- fsp->fd = fd_open(conn, fname, flags, mode);
+ /*
+ * This little piece of insanity is inspired by the
+ * fact that an NT client can open a file for O_RDONLY,
+ * but set the create disposition to FILE_EXISTS_TRUNCATE.
+ * If the client *can* write to the file, then it expects to
+ * truncate the file, even though it is opening for readonly.
+ * Quicken uses this stupid trick in backup file creation...
+ * Thanks *greatly* to "David W. Chapman Jr." <dwcjr@inethouston.net>
+ * for helping track this one down. It didn't bite us in 2.0.x
+ * as we always opened files read-write in that release. JRA.
+ */
- if (fsp->fd == -1) {
- DEBUG(3,("Error opening file %s (%s) (flags=%d)\n",
- fname,strerror(errno),flags));
- check_for_pipe(fname);
- return False;
+ if ((accmode == O_RDONLY) && ((flags & O_TRUNC) == O_TRUNC)) {
+ DEBUG(10,("open_file: truncate requested on read-only open "
+ "for file %s\n",fname ));
+ local_flags = (flags & ~O_ACCMODE)|O_RDWR;
}
- if (conn->vfs_ops.fstat(fsp->fd, &sbuf) == -1) {
- DEBUG(0,("Error doing fstat on open file %s (%s)\n", fname,strerror(errno) ));
- fd_close(conn, fsp);
- return False;
+ if ((access_mask & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA|FILE_EXECUTE)) ||
+ (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.
+ */
+
+ local_flags &= ~O_TRUNC;
+
+#if defined(O_NONBLOCK) && defined(S_ISFIFO)
+ /*
+ * We would block on opening a FIFO with no one else on the
+ * other end. Do what we used to do and add O_NONBLOCK to the
+ * open flags. JRA.
+ */
+
+ 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) && !file_existed &&
+ ms_has_wild(fname)) {
+ set_saved_ntstatus(NT_STATUS_OBJECT_NAME_INVALID);
+ return False;
+ }
+
+ /* Actually do the open */
+ fsp->fh->fd = fd_open(conn, fname, local_flags, unx_mode);
+ if (fsp->fh->fd == -1) {
+ DEBUG(3,("Error opening file %s (%s) (local_flags=%d) "
+ "(flags=%d)\n",
+ fname,strerror(errno),local_flags,flags));
+ return False;
+ }
+
+ /* Inherit the ACL if the file was created. */
+ if ((local_flags & O_CREAT) && !file_existed) {
+ inherit_access_acl(conn, fname, unx_mode);
+ }
+
+ } else {
+ fsp->fh->fd = -1; /* What we used to call a stat open. */
+ }
+
+ if (!file_existed) {
+ int ret;
+
+ if (fsp->fh->fd == -1) {
+ ret = SMB_VFS_STAT(conn, fname, 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) ));
+ }
+ }
+
+ /* For a non-io open, this stat failing means file not found. JRA */
+ if (ret == -1) {
+ fd_close(conn, fsp);
+ return False;
+ }
}
/*
* so catch a directory open and return an EISDIR. JRA.
*/
- if(S_ISDIR(sbuf.st_mode)) {
+ if(S_ISDIR(psbuf->st_mode)) {
fd_close(conn, fsp);
errno = EISDIR;
return False;
}
- fsp->mode = sbuf.st_mode;
- fsp->inode = sbuf.st_ino;
- fsp->dev = sbuf.st_dev;
- GetTimeOfDay(&fsp->open_time);
+ fsp->mode = psbuf->st_mode;
+ fsp->inode = psbuf->st_ino;
+ fsp->dev = psbuf->st_dev;
fsp->vuid = current_user.vuid;
- fsp->size = 0;
- fsp->pos = -1;
+ fsp->file_pid = global_smbpid;
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->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->stat_open = False;
- fsp->directory_delete_on_close = False;
- fsp->conn = conn;
- /*
- * Note that the file name here is the *untranslated* name
- * ie. it is still in the DOS codepage sent from the client.
- * All use of this filename will pass though the sys_xxxx
- * functions which will do the dos_to_unix translation before
- * mapping into a UNIX filename. JRA.
- */
+ fsp->is_stat = False;
+ if (conn->aio_write_behind_list &&
+ is_in_path(fname, conn->aio_write_behind_list, conn->case_sensitive)) {
+ fsp->aio_write_behind = True;
+ }
+
string_set(&fsp->fsp_name,fname);
- fsp->wbmpx_ptr = NULL;
fsp->wcp = NULL; /* Write cache pointer. */
DEBUG(2,("%s opened file %s read=%s write=%s (numopen=%d)\n",
- *sesssetup_user ? sesssetup_user : 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;
}
-/****************************************************************************
- C. Hoch 11/22/95
- Helper for open_file_shared.
- Truncate a file after checking locking; close file if locked.
- **************************************************************************/
-
-static int truncate_unless_locked(struct connection_struct *conn, files_struct *fsp)
-{
- SMB_BIG_UINT mask = (SMB_BIG_UINT)-1;
-
- if (!fsp->can_write)
- return -1;
-
- if (is_locked(fsp,fsp->conn,mask,0,WRITE_LOCK)){
- errno = EACCES;
- unix_ERR_class = ERRDOS;
- unix_ERR_code = ERRlock;
- return -1;
- } else {
- return conn->vfs_ops.ftruncate(fsp->fd,0);
- }
-}
-
/*******************************************************************
-return True if the filename is one of the special executable types
+ Return True if the filename is one of the special executable types.
********************************************************************/
+
static BOOL is_executable(const char *fname)
{
- if ((fname = strrchr(fname,'.'))) {
+ if ((fname = strrchr_m(fname,'.'))) {
if (strequal(fname,".com") ||
strequal(fname,".dll") ||
strequal(fname,".exe") ||
return False;
}
-enum {AFAIL,AREAD,AWRITE,AALL};
+/****************************************************************************
+ Check if we can open a file with a share mode.
+ Returns True if conflict, False if not.
+****************************************************************************/
-/*******************************************************************
-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)
+static BOOL share_conflict(struct share_mode_entry *entry,
+ uint32 access_mask,
+ uint32 share_access)
{
- 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);
-}
+ 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;
+ }
+ 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;
+ }
-/****************************************************************************
-check if we can open a file with a share mode
-****************************************************************************/
+#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; \
+ }
+#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
-static int check_share_mode( share_mode_entry *share, int deny_mode,
- const char *fname, BOOL fcbopen, int *flags)
-{
- int old_open_mode = GET_OPEN_MODE(share->share_mode);
- int old_deny_mode = GET_DENY_MODE(share->share_mode);
+ 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);
- /*
- * Don't allow any open once the delete on close flag has been
- * set.
- */
+ 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);
- 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 ));
- unix_ERR_class = ERRDOS;
- unix_ERR_code = ERRnoaccess;
- return False;
+ DEBUG(10,("share_conflict: No conflict.\n"));
+ return False;
+}
+
+#if defined(DEVELOPER)
+static void validate_my_share_entries(int num,
+ struct share_mode_entry *share_entry)
+{
+ files_struct *fsp;
+
+ if (!procid_is_me(&share_entry->pid)) {
+ return;
}
- {
- int access_allowed = access_table(deny_mode,old_deny_mode,old_open_mode,
- (share->pid == sys_getpid()),is_executable(fname));
+ if (is_deferred_open_entry(share_entry) &&
+ !open_was_deferred(share_entry->op_mid)) {
+ pstring str;
+ DEBUG(0, ("Got a deferred entry without a request: "
+ "PANIC: %s\n", share_mode_str(num, share_entry)));
+ smb_panic(str);
+ }
- if ((access_allowed == AFAIL) ||
- (!fcbopen && (access_allowed == AREAD && *flags == O_RDWR)) ||
- (access_allowed == AREAD && *flags != O_RDONLY) ||
- (access_allowed == AWRITE && *flags != O_WRONLY)) {
+ if (!is_valid_share_mode_entry(share_entry)) {
+ return;
+ }
- 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));
+ 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");
+ }
- unix_ERR_class = ERRDOS;
- unix_ERR_code = ERRbadshare;
+ if (is_deferred_open_entry(share_entry) ||
+ is_unused_share_mode_entry(share_entry)) {
+ goto panic;
+ }
- return False;
- }
+ 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 (access_allowed == AREAD)
- *flags = O_RDONLY;
+ if (((uint16)fsp->oplock_type) != share_entry->op_type) {
+ goto panic;
+ }
- if (access_allowed == AWRITE)
- *flags = O_WRONLY;
+ 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 );
+ smb_panic(str);
}
+}
+#endif
- return True;
+static BOOL is_stat_open(uint32 access_mask)
+{
+ 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, 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 = 0;
- BOOL fcbopen = False;
- int deny_mode = GET_DENY_MODE(share_mode);
- BOOL broke_oplock;
+ int i;
- if(GET_OPEN_MODE(share_mode) == DOS_OPEN_FCB)
- fcbopen = True;
+ if(lck->num_share_modes == 0) {
+ return NT_STATUS_OK;
+ }
+
+ *file_existed = True;
+
+ if (is_stat_open(access_mask)) {
+ /* Stat open that doesn't trigger oplock breaks or share mode
+ * checks... ! JRA. */
+ return NT_STATUS_OK;
+ }
- num_share_modes = get_share_modes(conn, dev, inode, &old_shares);
+ /* A delete on close prohibits everything */
- if(num_share_modes == 0)
- return 0;
+ if (lck->delete_on_close) {
+ return NT_STATUS_DELETE_PENDING;
+ }
- /*
- * Check if the share modes will give us access.
- */
+ /*
+ * Check if the share modes will give us access.
+ */
+
+#if defined(DEVELOPER)
+ for(i = 0; i < lck->num_share_modes; i++) {
+ validate_my_share_entries(i, &lck->share_modes[i]);
+ }
+#endif
- do {
+ if (!lp_share_modes(SNUM(conn))) {
+ return NT_STATUS_OK;
+ }
- broke_oplock = False;
- *p_all_current_opens_are_level_II = True;
+ /* Now we check the share modes, after any oplock breaks. */
+ for(i = 0; i < lck->num_share_modes; i++) {
- for(i = 0; i < num_share_modes; i++) {
- share_mode_entry *share_entry = &old_shares[i];
+ if (!is_valid_share_mode_entry(&lck->share_modes[i])) {
+ continue;
+ }
- /*
- * 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.
- */
+ /* 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;
+ }
+ }
+
+ return NT_STATUS_OK;
+}
- if((*p_oplock_request && EXCLUSIVE_OPLOCK_TYPE(share_entry->op_type)) ||
- (!*p_oplock_request && (share_entry->op_type != NO_OPLOCK))) {
+static BOOL is_delete_request(files_struct *fsp) {
+ return ((fsp->access_mask == DELETE_ACCESS) &&
+ (fsp->oplock_type == NO_OPLOCK));
+}
- BOOL opb_ret;
+/*
+ * 1) No files open at all: 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 i;
+ struct share_mode_entry *exclusive = NULL;
+ BOOL delay_it = False;
+ BOOL have_level2 = False;
- DEBUG(5,("open_mode_check: breaking oplock (%x) on file %s, \
-dev = %x, inode = %.0f\n", share_entry->op_type, fname, (unsigned int)dev, (double)inode));
+ if (is_stat_open(fsp->access_mask)) {
+ fsp->oplock_type = NO_OPLOCK;
+ return False;
+ }
- /* Oplock break - unlock to request it. */
- unlock_share_entry(conn, dev, inode);
+ if (lck->num_share_modes == 0) {
+ /* No files open at all: Directly grant whatever the client
+ * wants. */
- opb_ret = request_oplock_break(share_entry, dev, inode);
+ 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;
+ }
- /* Now relock. */
- lock_share_entry(conn, dev, inode);
+ for (i=0; i<lck->num_share_modes; i++) {
- if(opb_ret == False) {
- free((char *)old_shares);
- 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));
- errno = EACCES;
- unix_ERR_class = ERRDOS;
- unix_ERR_code = ERRbadshare;
- return -1;
- }
+ if (!is_valid_share_mode_entry(&lck->share_modes[i])) {
+ continue;
+ }
- broke_oplock = True;
- *p_all_current_opens_are_level_II = False;
- break;
+ if (EXCLUSIVE_OPLOCK_TYPE(lck->share_modes[i].op_type)) {
+ SMB_ASSERT(exclusive == NULL);
+ exclusive = &lck->share_modes[i];
+ }
- } else if (!LEVEL_II_OPLOCK_TYPE(share_entry->op_type)) {
- *p_all_current_opens_are_level_II = False;
- }
+ if (lck->share_modes[i].op_type == LEVEL_II_OPLOCK) {
+ have_level2 = True;
+ }
+ }
- /* someone else has a share lock on it, check to see
- if we can too */
+ 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(check_share_mode(share_entry, deny_mode, fname, fcbopen, p_flags) == False) {
- free((char *)old_shares);
- errno = EACCES;
- return -1;
- }
+ if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
+ /* We can at most grant level2 */
+ fsp->oplock_type = LEVEL_II_OPLOCK;
+ }
- } /* end for */
+ 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(broke_oplock) {
- free((char *)old_shares);
- num_share_modes = get_share_modes(conn, dev, inode, &old_shares);
- oplock_contention_count++;
- }
- } while(broke_oplock);
+ if (delay_it) {
+ BOOL ret;
+ char msg[MSG_SMB_SHARE_MODE_ENTRY_SIZE];
- if(old_shares != 0)
- free((char *)old_shares);
+ DEBUG(10, ("Sending break request to PID %s\n",
+ procid_str_static(&exclusive->pid)));
+ exclusive->op_mid = get_current_mid();
- /*
- * Refuse to grant an oplock in case the contention limit is
- * reached when going through the lock list multiple times.
- */
+ share_mode_entry_to_message(msg, exclusive);
- 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 ));
- }
+ become_root();
+ ret = message_send_pid(exclusive->pid, MSG_SMB_BREAK_REQUEST,
+ msg, MSG_SMB_SHARE_MODE_ENTRY_SIZE, True);
+ unbecome_root();
+ if (!ret) {
+ DEBUG(3, ("Could not send oplock break message\n"));
+ }
+ file_free(fsp);
+ }
- return num_share_modes;
+ return delay_it;
}
-/****************************************************************************
-set a kernel flock on a file for NFS interoperability
-this requires a patch to Linux
-****************************************************************************/
-static void kernel_flock(files_struct *fsp, int deny_mode)
+static BOOL request_timed_out(struct timeval request_time,
+ struct timeval timeout)
{
-#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
+ struct timeval now, end_time;
+ GetTimeOfDay(&now);
+ end_time = timeval_sum(&request_time, &timeout);
+ return (timeval_compare(&end_time, &now) < 0);
}
-
/****************************************************************************
- Open a file with a share mode.
+ Handle the 1 second delay in returning a SHARING_VIOLATION error.
****************************************************************************/
-files_struct *open_file_shared(connection_struct *conn,char *fname,int share_mode,int ofun,
- mode_t mode,int oplock_request, int *Access,int *action)
+
+static void defer_open(struct share_mode_lock *lck,
+ struct timeval request_time,
+ struct timeval timeout,
+ struct deferred_open_record *state)
{
- int flags=0;
- int flags2=0;
- int deny_mode = GET_DENY_MODE(share_mode);
- BOOL allow_share_delete = GET_ALLOW_SHARE_DELETE(share_mode);
- SMB_STRUCT_STAT sbuf;
- BOOL file_existed = vfs_file_exist(conn, fname, &sbuf);
- BOOL fcbopen = 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;
- files_struct *fsp = NULL;
- int open_mode=0;
- uint16 port = 0;
+ uint16 mid = get_current_mid();
+ int i;
- if (conn->printer) {
- /* printers are handled completely differently. Most of the passed parameters are
- ignored */
- *Access = DOS_OPEN_WRONLY;
- *action = FILE_WAS_CREATED;
- return print_fsp_open(conn, fname);
- }
+ /* Paranoia check */
- fsp = file_new();
- if(!fsp)
- return NULL;
+ for (i=0; i<lck->num_share_modes; i++) {
+ struct share_mode_entry *e = &lck->share_modes[i];
+
+ if (!is_deferred_open_entry(e)) {
+ continue;
+ }
- fsp->fd = -1;
+ if (procid_is_me(&e->pid) && (e->op_mid == mid)) {
+ DEBUG(0, ("Trying to defer an already deferred "
+ "request: mid=%d, exiting\n", mid));
+ exit_server("exiting");
+ }
+ }
- DEBUG(10,("open_file_shared: fname = %s, share_mode = %x, ofun = %x, mode = %o, oplock request = %d\n",
- fname, share_mode, ofun, (int)mode, oplock_request ));
+ /* End paranoia check */
- if (!check_name(fname,conn)) {
- file_free(fsp);
- return NULL;
- }
+ 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));
- /* ignore any oplock requests if oplocks are disabled */
- if (!lp_oplocks(SNUM(conn)) || global_client_failed_oplock_break) {
- oplock_request = 0;
+ if (!push_deferred_smb_message(mid, request_time, timeout,
+ (char *)state, sizeof(*state))) {
+ exit_server("push_deferred_smb_message failed\n");
}
+ add_deferred_open(lck, mid, request_time, state->dev, state->inode);
- /* this is for OS/2 EAs - try and say we don't support them */
- if (strstr(fname,".+,;=[].")) {
- unix_ERR_class = ERRDOS;
- /* OS/2 Workplace shell fix may be main code stream in a later release. */
-#if 1 /* OS2_WPS_FIX - Recent versions of OS/2 need this. */
- unix_ERR_code = ERRcannotopen;
-#else /* OS2_WPS_FIX */
- unix_ERR_code = ERROR_EAS_NOT_SUPPORTED;
-#endif /* OS2_WPS_FIX */
+ /*
+ * Push the MID of this packet on the signing queue.
+ * We only do this once, the first time we push the packet
+ * onto the deferred open queue, as this has a side effect
+ * of incrementing the response sequence number.
+ */
- DEBUG(5,("open_file_shared: OS/2 EA's are not supported.\n"));
- file_free(fsp);
- return NULL;
- }
+ srv_defer_sign_response(mid);
+}
- 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 ));
- file_free(fsp);
- errno = EEXIST;
- return NULL;
+/****************************************************************************
+ Set a kernel flock on a file for NFS interoperability.
+ This requires a patch to Linux.
+****************************************************************************/
+
+static void kernel_flock(files_struct *fsp, uint32 share_mode)
+{
+#if HAVE_KERNEL_SHARE_MODES
+ int kernel_mode = 0;
+ if (share_mode == FILE_SHARE_WRITE) {
+ kernel_mode = LOCK_MAND|LOCK_WRITE;
+ } else if (share_mode == FILE_SHARE_READ) {
+ kernel_mode = LOCK_MAND|LOCK_READ;
+ } else if (share_mode == FILE_SHARE_NONE) {
+ kernel_mode = LOCK_MAND;
+ }
+ if (kernel_mode) {
+ flock(fsp->fh->fd, kernel_mode);
}
-
- if (GET_FILE_CREATE_DISPOSITION(ofun) == FILE_CREATE_IF_NOT_EXIST)
- flags2 |= O_CREAT;
+#endif
+ ;
+}
- if (GET_FILE_OPEN_DISPOSITION(ofun) == FILE_EXISTS_TRUNCATE)
- flags2 |= O_TRUNC;
+/****************************************************************************
+ On overwrite open ensure that the attributes match.
+****************************************************************************/
- if (GET_FILE_OPEN_DISPOSITION(ofun) == FILE_EXISTS_FAIL)
- flags2 |= O_EXCL;
+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_attr, noarch_new_dos_attr;
- /* note that we ignore the append flag as
- append does not mean the same thing under dos and unix */
+ noarch_old_dos_attr = (old_dos_attr & ~FILE_ATTRIBUTE_ARCHIVE);
+ noarch_new_dos_attr = (new_dos_attr & ~FILE_ATTRIBUTE_ARCHIVE);
- switch (GET_OPEN_MODE(share_mode)) {
- case DOS_OPEN_WRONLY:
- flags = O_WRONLY;
- break;
- case DOS_OPEN_FCB:
- fcbopen = True;
- flags = O_RDWR;
- break;
- case DOS_OPEN_RDWR:
- flags = O_RDWR;
- break;
- default:
- flags = O_RDONLY;
- break;
+ 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;
}
-#if defined(O_SYNC)
- if (GET_FILE_SYNC_OPENMODE(share_mode)) {
- flags2 |= O_SYNC;
- }
-#endif /* O_SYNC */
-
- if (flags != O_RDONLY && file_existed &&
- (!CAN_WRITE(conn) || IS_DOS_READONLY(dos_mode(conn,fname,&sbuf)))) {
- 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" ));
- file_free(fsp);
- errno = EACCES;
- return NULL;
+ 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_attr & FILE_ATTRIBUTE_SYSTEM) &&
+ !(new_dos_attr & FILE_ATTRIBUTE_SYSTEM)) {
+ return False;
}
- flags = O_RDONLY;
}
-
- if (deny_mode > DENY_NONE && deny_mode!=DENY_FCB) {
- DEBUG(2,("Invalid deny mode %d on file %s\n",deny_mode,fname));
- file_free(fsp);
- errno = EINVAL;
- return NULL;
+ if (lp_map_hidden(SNUM(conn)) || lp_store_dos_attributes(SNUM(conn))) {
+ if ((old_dos_attr & FILE_ATTRIBUTE_HIDDEN) &&
+ !(new_dos_attr & FILE_ATTRIBUTE_HIDDEN)) {
+ return False;
+ }
}
+ return True;
+}
- if (file_existed) {
- dev = sbuf.st_dev;
- inode = sbuf.st_ino;
-
- lock_share_entry(conn, dev, inode);
+/****************************************************************************
+ Special FCB or DOS processing in the case of a sharing violation.
+ Try and find a duplicated file handle.
+****************************************************************************/
- num_share_modes = open_mode_check(conn, fname, dev, inode, share_mode,
- &flags, &oplock_request, &all_current_opens_are_level_II);
- if(num_share_modes == -1) {
- unlock_share_entry(conn, dev, inode);
- file_free(fsp);
- return NULL;
+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)
+{
+ 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;
}
-
- /*
- * We exit this block with the share entry *locked*.....
- */
}
- DEBUG(4,("calling open_file with flags=0x%X flags2=0x%X mode=0%o\n",
- flags,flags2,(int)mode));
-
- fsp_open = open_file(fsp,conn,fname,flags|(flags2&~(O_TRUNC)),mode);
+ if (!fsp) {
+ return NULL;
+ }
- if (!fsp_open && (flags == O_RDWR) && (errno != ENOENT) && fcbopen) {
- if((fsp_open = open_file(fsp,conn,fname,O_RDONLY,mode)) == True)
- flags = O_RDONLY;
+ /* 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;
}
- if (!fsp_open) {
- if(file_existed)
- unlock_share_entry(conn, dev, inode);
- file_free(fsp);
+ /* We need to duplicate this fsp. */
+ dup_fsp = dup_file_fsp(fsp, access_mask, share_access, create_options);
+ if (!dup_fsp) {
return NULL;
}
- /* not 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);
+ return dup_fsp;
+}
- /*
- * 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.
- */
+/****************************************************************************
+ Open a file with a share mode - old openX method - map into NTCreate.
+****************************************************************************/
- if (!file_existed) {
+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;
+ }
- lock_share_entry_fsp(fsp);
+ /* 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;
- num_share_modes = open_mode_check(conn, fname, dev, inode, share_mode,
- &flags, &oplock_request, &all_current_opens_are_level_II);
+ case OPENX_FILE_EXISTS_OPEN:
+ create_disposition = FILE_OPEN;
+ break;
- if(num_share_modes == -1) {
- unlock_share_entry_fsp(fsp);
- fd_close(conn,fsp);
+ 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;
+
+}
+
+/****************************************************************************
+ Open a file with a share mode.
+****************************************************************************/
+
+files_struct *open_file_ntcreate(connection_struct *conn,
+ const char *fname,
+ SMB_STRUCT_STAT *psbuf,
+ uint32 access_mask, /* access bits (FILE_READ_DATA etc.) */
+ uint32 share_access, /* share constants (FILE_SHARE_READ etc). */
+ uint32 create_disposition, /* FILE_OPEN_IF etc. */
+ uint32 create_options, /* options such as delete on close. */
+ uint32 new_dos_attributes, /* attributes used for new file. */
+ int oplock_request, /* internal Samba oplock codes. */
+ /* Information (FILE_EXISTS etc.) */
+ int *pinfo)
+{
+ int flags=0;
+ int flags2=0;
+ BOOL file_existed = VALID_STAT(*psbuf);
+ BOOL def_acl = False;
+ BOOL internal_only_open = False;
+ SMB_DEV_T dev = 0;
+ SMB_INO_T inode = 0;
+ BOOL fsp_open = False;
+ files_struct *fsp = NULL;
+ 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();
+ BOOL delayed_for_oplocks = False;
+ struct timeval request_time = timeval_zero();
+ struct share_mode_lock *lck = NULL;
+ NTSTATUS status;
+
+ 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);
+ }
+
+ /* We add aARCH to this as this mode is only used if the file is
+ * created new. */
+ unx_mode = unix_mode(conn, new_dos_attributes | aARCH,fname, True);
+
+ 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 (oplock_request == INTERNAL_OPEN_ONLY) {
+ internal_only_open = True;
+ oplock_request = 0;
+ }
+
+ if ((pml = get_open_deferred_message(mid)) != NULL) {
+ struct deferred_open_record *state =
+ (struct deferred_open_record *)pml->private_data.data;
+
+ request_time = pml->request_time;
+ delayed_for_oplocks = state->delayed_for_oplocks;
+
+ /* 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. */
+
+ /* 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. */
+
+ /* Now 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_destroy(lck);
+ }
+
+ /* Ensure we don't reprocess this message. */
+ remove_deferred_open_smb_message(mid);
+ }
+
+ if (!check_name(fname,conn)) {
+ return NULL;
+ }
+
+ new_dos_attributes &= SAMBA_ATTRIBUTES_MASK;
+ if (file_existed) {
+ existing_dos_attributes = dos_mode(conn, fname, psbuf);
+ }
+
+ /* ignore any oplock requests if oplocks are disabled */
+ if (!lp_oplocks(SNUM(conn)) || global_client_failed_oplock_break ||
+ IS_VETO_OPLOCK_PATH(conn, fname)) {
+ oplock_request = 0;
+ }
+
+ /* this is for OS/2 long file names - say we don't support them */
+ if (!lp_posix_pathnames() && strstr(fname,".+,;=[].")) {
+ /* OS/2 Workplace shell fix may be main code stream in a later
+ * release. */
+ set_saved_error_triple(ERRDOS, ERRcannotopen,
+ NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ DEBUG(5,("open_file_ntcreate: OS/2 long filenames are not "
+ "supported.\n"));
+ return NULL;
+ }
+
+ 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;
+
+ 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 ));
+ set_saved_ntstatus(NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ errno = ENOENT;
+ return NULL;
+ }
+ break;
+
+ 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 ));
+ set_saved_ntstatus(NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ errno = ENOENT;
+ return NULL;
+ }
+ flags2 |= O_TRUNC;
+ 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 NULL;
+ }
+ flags2 |= (O_CREAT|O_EXCL);
+ break;
+
+ case FILE_OPEN_IF:
+ /* If file exists open. If file doesn't exist
+ * create. */
+ flags2 |= O_CREAT;
+ break;
+
+ default:
+ set_saved_ntstatus(NT_STATUS_INVALID_PARAMETER);
+ 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 NULL;
+ }
+ }
+
+ /* This is a nasty hack - must fix... JRA. */
+ if (access_mask == MAXIMUM_ALLOWED_ACCESS) {
+ access_mask = FILE_GENERIC_ALL;
+ }
+
+ /*
+ * Convert GENERIC bits to specific bits.
+ */
+
+ se_map_generic(&access_mask, &file_generic_mapping);
+
+ DEBUG(10, ("open_file_ntcreate: fname=%s, after mapping "
+ "access_mask=0x%x\n", fname, access_mask ));
+
+ /*
+ * Note that we ignore the append flag as append does not
+ * mean the same thing under DOS and Unix.
+ */
+
+ if (access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) {
+ flags = O_RDWR;
+ } else {
+ flags = O_RDONLY;
+ }
+
+ /*
+ * Currently we only look at FILE_WRITE_THROUGH for create options.
+ */
+
+#if defined(O_SYNC)
+ if (create_options & FILE_WRITE_THROUGH) {
+ flags2 |= O_SYNC;
+ }
+#endif /* O_SYNC */
+
+ 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);
+ }
+
+ /*
+ * 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" ));
+ set_saved_ntstatus(NT_STATUS_ACCESS_DENIED);
+ errno = EACCES;
+ return NULL;
+ }
+
+ 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 = access_mask;
+ fsp->oplock_type = oplock_request;
+
+ if (timeval_is_zero(&request_time)) {
+ request_time = fsp->open_time;
+ }
+
+ if (file_existed) {
+
+ dev = psbuf->st_dev;
+ inode = psbuf->st_ino;
+
+ lck = get_share_mode_lock(NULL, dev, inode,
+ conn->connectpath,
+ fname);
+
+ if (lck == NULL) {
+ DEBUG(0, ("Could not get share mode lock\n"));
+ set_saved_ntstatus(NT_STATUS_SHARING_VIOLATION);
+ return NULL;
+ }
+
+ if (delay_for_oplocks(lck, fsp)) {
+ struct deferred_open_record state;
+ struct timeval timeout;
+
+ if (delayed_for_oplocks) {
+ DEBUG(0, ("Trying to delay for oplocks "
+ "twice\n"));
+ exit_server("exiting");
+ }
+
+ timeout = timeval_set(OPLOCK_BREAK_TIMEOUT*2, 0);
+
+ /* 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. */
+
+ state.delayed_for_oplocks = True;
+ state.dev = dev;
+ state.inode = inode;
+
+ if (!request_timed_out(request_time, timeout)) {
+ defer_open(lck, request_time, timeout,
+ &state);
+ }
+
+ talloc_free(lck);
+ return NULL;
+ }
+
+ status = open_mode_check(conn, fname, lck,
+ access_mask, share_access,
+ create_options, &file_existed);
+
+ if (NT_STATUS_EQUAL(status, NT_STATUS_DELETE_PENDING)) {
+ /* DELETE_PENDING is not deferred for a second */
+ set_saved_ntstatus(status);
+ talloc_free(lck);
+ file_free(fsp);
+ return NULL;
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+
+ 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;
+ 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++;
+ return fsp_dup;
+ }
+ }
+
+ /*
+ * 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.
+ */
+ errno = 0;
+ fsp_open = open_file(fsp,conn,fname,psbuf,
+ flags|(flags2&~(O_TRUNC|O_CREAT)),
+ unx_mode,access_mask);
+
+ DEBUG(4,("open_file_ntcreate : share_mode deny - "
+ "calling open_file with flags=0x%X "
+ "flags2=0x%X mode=0%o returned %d\n",
+ flags, (flags2&~(O_TRUNC|O_CREAT)),
+ (unsigned int)unx_mode, (int)fsp_open ));
+
+ if (!fsp_open && errno) {
+ /* Default error. */
+ set_saved_ntstatus(NT_STATUS_ACCESS_DENIED);
+ }
+
+ /*
+ * If we're returning a share violation, ensure we
+ * cope with the braindead 1 second delay.
+ */
+
+ if (!internal_only_open &&
+ lp_defer_sharing_violations()) {
+ struct timeval timeout;
+ struct deferred_open_record state;
+
+ timeout = timeval_set(0, SHARING_VIOLATION_USEC_WAIT);
+
+ 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);
+ }
+ }
+
+ talloc_free(lck);
+ if (fsp_open) {
+ fd_close(conn, fsp);
+ /*
+ * We have detected a sharing violation here
+ * so return the correct error code
+ */
+ set_saved_ntstatus(NT_STATUS_SHARING_VIOLATION);
+ }
file_free(fsp);
return NULL;
}
*/
}
+ SMB_ASSERT(!file_existed || (lck != NULL));
+
/*
- * At this point onwards, we can guarentee that the share entry
- * is locked, whether we created the file or not, and that the
- * deny mode is compatible with all current opens.
+ * 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)))) {
+ unx_mode = 0777;
+ }
+
+ DEBUG(4,("calling open_file with flags=0x%X flags2=0x%X mode=0%o\n",
+ (unsigned int)flags, (unsigned int)flags2,
+ (unsigned int)unx_mode));
+
/*
- * If requested, truncate the file.
+ * open_file strips any O_TRUNC flags itself.
*/
- if ((flags2&O_TRUNC) && (truncate_unless_locked(conn,fsp) == -1)) {
- unlock_share_entry_fsp(fsp);
- fd_close(conn,fsp);
+ fsp_open = open_file(fsp,conn,fname,psbuf,flags|flags2,unx_mode,
+ access_mask);
+
+ if (!fsp_open) {
+ if (lck != NULL) {
+ talloc_free(lck);
+ }
file_free(fsp);
return NULL;
}
- 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;
+ 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,
+ * fsp->dev and fsp->inode are valid and should replace the
+ * dev=0,inode=0 from a non existent file. Spotted by
+ * Nadav Danieli <nadavd@exanet.com>. JRA.
+ */
+
+ dev = fsp->dev;
+ inode = fsp->inode;
+
+ lck = get_share_mode_lock(NULL, dev, inode,
+ conn->connectpath,
+ fname);
+
+ 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);
+ set_saved_ntstatus(NT_STATUS_SHARING_VIOLATION);
+ return NULL;
+ }
+
+ status = open_mode_check(conn, fname, lck,
+ access_mask, share_access,
+ create_options, &file_existed);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ struct deferred_open_record state;
+
+ fd_close(conn, fsp);
+ file_free(fsp);
+
+ 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 NULL;
+ }
+
+ /*
+ * We exit this block with the share entry *locked*.....
+ */
}
- fsp->share_mode = SET_DENY_MODE(deny_mode) |
- SET_OPEN_MODE(open_mode) |
- SET_ALLOW_SHARE_DELETE(allow_share_delete);
+ 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 */
- if (Access)
- (*Access) = open_mode;
+ kernel_flock(fsp, share_access);
- if (action) {
- if (file_existed && !(flags2 & O_TRUNC))
- *action = FILE_WAS_OPENED;
- if (!file_existed)
- *action = FILE_WAS_CREATED;
- if (file_existed && (flags2 & O_TRUNC))
- *action = FILE_WAS_OVERWRITTEN;
+ /*
+ * At this point onwards, we can guarentee that the share entry
+ * is locked, whether we created the file or not, and that the
+ * deny mode is compatible with all current opens.
+ */
+
+ /*
+ * If requested, truncate the file.
+ */
+
+ if (flags2&O_TRUNC) {
+ /*
+ * We are modifing the file after open - update the stat
+ * struct..
+ */
+ if ((SMB_VFS_FTRUNCATE(fsp,fsp->fh->fd,0) == -1) ||
+ (SMB_VFS_FSTAT(fsp,fsp->fh->fd,psbuf)==-1)) {
+ talloc_free(lck);
+ fd_close(conn,fsp);
+ file_free(fsp);
+ return NULL;
+ }
+ }
+
+ /* Record the options we were opened with. */
+ fsp->share_access = share_access;
+ fsp->fh->private_options = create_options;
+ fsp->access_mask = access_mask;
+
+ if (file_existed) {
+ if (!(flags2 & O_TRUNC)) {
+ info = FILE_WAS_OPENED;
+ } else {
+ info = FILE_WAS_OVERWRITTEN;
+ }
+ } else {
+ info = FILE_WAS_CREATED;
+ /* Change the owner if required. */
+ if (lp_inherit_owner(SNUM(conn))) {
+ change_owner_to_parent(conn, fsp, fsp->fsp_name,
+ psbuf);
+ }
+ }
+
+ if (pinfo) {
+ *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, 0, fsp->oplock_type);
+
+ if (info == FILE_WAS_OVERWRITTEN || info == FILE_WAS_CREATED ||
+ info == FILE_WAS_SUPERSEDED) {
+
+ /* Handle strange delete on close create semantics. */
+ if (create_options & FILE_DELETE_ON_CLOSE) {
+ NTSTATUS result = can_set_delete_on_close(fsp, True, new_dos_attributes);
+
+ if (!NT_STATUS_IS_OK(result)) {
+ /* Remember to delete the mode we just added. */
+ del_share_mode(lck, fsp);
+ talloc_free(lck);
+ fd_close(conn,fsp);
+ file_free(fsp);
+ set_saved_ntstatus(result);
+ return NULL;
+ }
+ /* Note that here we set the *inital* delete on close flag,
+ not the regular one. */
+ set_delete_on_close_token(lck, ¤t_user.ut);
+ lck->initial_delete_on_close = True;
+ lck->modified = True;
+ }
+
+ /* 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_attributes | aARCH, NULL,
+ True);
+ }
}
- set_share_mode(fsp, port, oplock_request);
+ /*
+ * Take care of inherited ACLs on created files - if default ACL not
+ * selected.
+ */
+
+ if (!file_existed && !def_acl) {
+
+ int saved_errno = errno; /* We might get ENOSYS in the next
+ * call.. */
+
+ if (SMB_VFS_FCHMOD_ACL(fsp, fsp->fh->fd, unx_mode) == -1
+ && errno == ENOSYS) {
+ errno = saved_errno; /* Ignore ENOSYS */
+ }
+
+ } 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->fh->fd,
+ new_unx_mode);
+
+ if (ret == -1 && errno == ENOSYS) {
+ errno = saved_errno; /* Ignore ENOSYS */
+ } else {
+ DEBUG(5, ("open_file_shared: 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->fh->fd, new_unx_mode) == -1))
+ DEBUG(5, ("open_file_shared: failed to reset "
+ "attributes of file %s to 0%o\n",
+ fname, (unsigned int)new_unx_mode));
+ }
- 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++;
}
/****************************************************************************
- Open a file for permissions read only. Return a pseudo file entry
- with the 'stat_open' flag set
+ Open a file for for write to ensure that we can fchmod it.
****************************************************************************/
-files_struct *open_file_stat(connection_struct *conn,
- char *fname, int smb_ofun, SMB_STRUCT_STAT *pst, int *action)
+files_struct *open_file_fchmod(connection_struct *conn, const char *fname,
+ SMB_STRUCT_STAT *psbuf)
{
- extern struct current_user current_user;
- files_struct *fsp = file_new();
+ files_struct *fsp = NULL;
+ BOOL fsp_open;
- if(!fsp)
- return NULL;
-
- if(conn->vfs_ops.stat(dos_to_unix(fname, False), pst) < 0) {
- DEBUG(0,("open_file_stat: unable to stat name = %s. Error was %s\n",
- fname, strerror(errno) ));
- file_free(fsp);
+ if (!VALID_STAT(*psbuf)) {
return NULL;
}
- if(S_ISDIR(pst->st_mode)) {
- DEBUG(0,("open_file_stat: %s is a directory !\n", fname ));
- file_free(fsp);
+ fsp = file_new(conn);
+ if(!fsp) {
return NULL;
}
- *action = FILE_WAS_OPENED;
-
- DEBUG(5,("open_file_stat: opening file %s as a stat entry\n", fname));
+ /* 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);
- /*
- * Setup the files_struct for it.
- */
-
- fsp->fd = -1;
- fsp->mode = 0;
- GetTimeOfDay(&fsp->open_time);
- fsp->vuid = current_user.vuid;
- fsp->size = 0;
- fsp->pos = -1;
- fsp->can_lock = False;
- fsp->can_read = False;
- fsp->can_write = False;
- fsp->share_mode = 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->stat_open = True;
- fsp->directory_delete_on_close = False;
- fsp->conn = conn;
- /*
- * Note that the file name here is the *untranslated* name
- * ie. it is still in the DOS codepage sent from the client.
- * All use of this filename will pass though the sys_xxxx
- * functions which will do the dos_to_unix translation before
- * mapping into a UNIX filename. JRA.
+ /*
+ * This is not a user visible file open.
+ * Don't set a share mode and don't increment
+ * the conn->num_files_open.
*/
- string_set(&fsp->fsp_name,fname);
- fsp->wbmpx_ptr = NULL;
- fsp->wcp = NULL; /* Write cache pointer. */
- conn->num_files_open++;
+ if (!fsp_open) {
+ file_free(fsp);
+ return NULL;
+ }
return fsp;
}
+/****************************************************************************
+ Close the fchmod file fd - ensure no locks are lost.
+****************************************************************************/
+
+int close_file_fchmod(files_struct *fsp)
+{
+ int ret = fd_close(fsp->conn, fsp);
+ file_free(fsp);
+ return ret;
+}
+
/****************************************************************************
Open a directory from an NT SMB call.
****************************************************************************/
files_struct *open_directory(connection_struct *conn,
- char *fname, int smb_ofun, mode_t unixmode, int *action)
+ const char *fname,
+ SMB_STRUCT_STAT *psbuf,
+ uint32 access_mask,
+ uint32 share_access,
+ uint32 create_disposition,
+ uint32 create_options,
+ int *pinfo)
{
- extern struct current_user current_user;
- SMB_STRUCT_STAT st;
- BOOL got_stat = False;
- files_struct *fsp = file_new();
-
- if(!fsp)
+ files_struct *fsp = NULL;
+ BOOL dir_existed = VALID_STAT(*psbuf) ? True : False;
+ BOOL create_dir = False;
+ struct share_mode_lock *lck = NULL;
+ NTSTATUS status;
+ int info = 0;
+
+ DEBUG(5,("open_directory: opening directory %s, access_mask = 0x%x, "
+ "share_access = 0x%x create_options = 0x%x, "
+ "create_disposition = 0x%x\n",
+ 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 ));
+ set_saved_ntstatus(NT_STATUS_NOT_A_DIRECTORY);
return NULL;
-
- if(conn->vfs_ops.stat(dos_to_unix(fname, False), &st) == 0) {
- got_stat = True;
}
- 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. */
+ if (dir_existed && !S_ISDIR(psbuf->st_mode)) {
+ DEBUG(0,("open_directory: %s is not a directory !\n", fname ));
+ set_saved_ntstatus(NT_STATUS_NOT_A_DIRECTORY);
return NULL;
}
- if (GET_FILE_CREATE_DISPOSITION(smb_ofun) == FILE_CREATE_IF_NOT_EXIST) {
-
- if (got_stat) {
-
- if(!S_ISDIR(st.st_mode)) {
- DEBUG(0,("open_directory: %s is not a directory !\n", fname ));
- file_free(fsp);
- errno = EACCES;
+ switch( create_disposition ) {
+ case FILE_OPEN:
+ /* If directory exists open. If directory doesn't
+ * exist error. */
+ if (!dir_existed) {
+ DEBUG(5,("open_directory: FILE_OPEN requested "
+ "for directory %s and it doesn't "
+ "exist.\n", fname ));
+ set_saved_ntstatus(NT_STATUS_OBJECT_NAME_NOT_FOUND);
return NULL;
}
- *action = FILE_WAS_OPENED;
-
- } else {
-
- /*
- * Try and create the directory.
- */
+ info = FILE_WAS_OPENED;
+ break;
- if(!CAN_WRITE(conn)) {
- DEBUG(2,("open_directory: failing create on read-only share\n"));
- file_free(fsp);
- errno = EACCES;
+ case FILE_CREATE:
+ /* If directory exists error. If directory doesn't
+ * exist create. */
+ if (dir_existed) {
+ DEBUG(5,("open_directory: FILE_CREATE "
+ "requested for directory %s and it "
+ "already exists.\n", fname ));
+ set_saved_error_triple(ERRDOS, ERRfilexists,
+ NT_STATUS_OBJECT_NAME_COLLISION);
return NULL;
}
+ create_dir = True;
+ info = FILE_WAS_CREATED;
+ break;
- if(conn->vfs_ops.mkdir(dos_to_unix(fname, False),
- unix_mode(conn,aDIR, fname)) < 0) {
- DEBUG(0,("open_directory: unable to create %s. Error was %s\n",
- fname, strerror(errno) ));
- file_free(fsp);
- return NULL;
+ case FILE_OPEN_IF:
+ /* If directory exists open. If directory doesn't
+ * exist create. */
+ if (!dir_existed) {
+ create_dir = True;
+ info = FILE_WAS_CREATED;
+ } else {
+ info = FILE_WAS_OPENED;
}
- *action = FILE_WAS_CREATED;
+ break;
- }
- } else {
+ 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));
+ file_free(fsp);
+ set_saved_ntstatus(NT_STATUS_INVALID_PARAMETER);
+ return NULL;
+ }
+ if (create_dir) {
/*
- * Don't create - just check that it *was* a directory.
+ * Try and create the directory.
*/
- if(!got_stat) {
- DEBUG(0,("open_directory: unable to stat name = %s. Error was %s\n",
- fname, strerror(errno) ));
- file_free(fsp);
+ /* We know bad_path is false as it's caught earlier. */
+
+ status = mkdir_internal(conn, fname, False);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(2,("open_directory: unable to create %s. "
+ "Error was %s\n", fname, strerror(errno) ));
+ /* Ensure we return the correct NT status to the
+ * client. */
+ set_saved_error_triple(0, 0, status);
return NULL;
}
- if(!S_ISDIR(st.st_mode)) {
- DEBUG(0,("open_directory: %s is not a directory !\n", fname ));
- file_free(fsp);
+ /* Ensure we're checking for a symlink here.... */
+ /* We don't want to get caught by a symlink racer. */
+
+ if(SMB_VFS_LSTAT(conn,fname, psbuf) != 0) {
return NULL;
}
- *action = FILE_WAS_OPENED;
+ if(!S_ISDIR(psbuf->st_mode)) {
+ DEBUG(0,("open_directory: %s is not a directory !\n",
+ fname ));
+ return NULL;
+ }
+ }
+
+ fsp = file_new(conn);
+ if(!fsp) {
+ return NULL;
}
-
- DEBUG(5,("open_directory: opening directory %s\n",
- fname));
/*
* Setup the files_struct for it.
*/
- fsp->fd = -1;
- fsp->mode = 0;
- GetTimeOfDay(&fsp->open_time);
+ fsp->mode = psbuf->st_mode;
+ fsp->inode = psbuf->st_ino;
+ fsp->dev = psbuf->st_dev;
fsp->vuid = current_user.vuid;
- fsp->size = 0;
- fsp->pos = -1;
+ fsp->file_pid = global_smbpid;
fsp->can_lock = True;
fsp->can_read = False;
fsp->can_write = False;
- fsp->share_mode = 0;
+
+ 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->directory_delete_on_close = False;
- fsp->conn = conn;
+ fsp->is_stat = False;
+ string_set(&fsp->fsp_name,fname);
+
+ lck = get_share_mode_lock(NULL, fsp->dev, fsp->inode,
+ conn->connectpath,
+ fname);
+
+ if (lck == NULL) {
+ DEBUG(0, ("open_directory: Could not get share mode lock for %s\n", fname));
+ file_free(fsp);
+ set_saved_ntstatus(NT_STATUS_SHARING_VIOLATION);
+ return NULL;
+ }
+
+ status = open_mode_check(conn, fname, lck,
+ access_mask, share_access,
+ create_options, &dir_existed);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ set_saved_ntstatus(status);
+ talloc_free(lck);
+ file_free(fsp);
+ return NULL;
+ }
+
+ set_share_mode(lck, fsp, 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)) {
+ set_saved_ntstatus(status);
+ talloc_free(lck);
+ file_free(fsp);
+ return NULL;
+ }
+
+ set_delete_on_close_token(lck, ¤t_user.ut);
+ lck->initial_delete_on_close = True;
+ lck->modified = True;
+ }
+
+ talloc_free(lck);
+
+ /* Change the owner if required. */
+ if ((info == FILE_WAS_CREATED) && lp_inherit_owner(SNUM(conn))) {
+ change_owner_to_parent(conn, fsp, fsp->fsp_name, psbuf);
+ }
+
+ if (pinfo) {
+ *pinfo = info;
+ }
+
+ conn->num_files_open++;
+
+ return fsp;
+}
+
+/****************************************************************************
+ Open a pseudo-file (no locking checks - a 'stat' open).
+****************************************************************************/
+
+files_struct *open_file_stat(connection_struct *conn, char *fname,
+ SMB_STRUCT_STAT *psbuf)
+{
+ files_struct *fsp = NULL;
+
+ if (!VALID_STAT(*psbuf))
+ return NULL;
+
+ /* Can't 'stat' open directories. */
+ if(S_ISDIR(psbuf->st_mode))
+ return NULL;
+
+ fsp = file_new(conn);
+ if(!fsp)
+ return NULL;
+
+ DEBUG(5,("open_file_stat: 'opening' file %s\n", fname));
+
/*
- * Note that the file name here is the *untranslated* name
- * ie. it is still in the DOS codepage sent from the client.
- * All use of this filename will pass though the sys_xxxx
- * functions which will do the dos_to_unix translation before
- * mapping into a UNIX filename. JRA.
+ * Setup the files_struct for it.
*/
+
+ fsp->mode = psbuf->st_mode;
+ fsp->inode = psbuf->st_ino;
+ fsp->dev = psbuf->st_dev;
+ fsp->vuid = current_user.vuid;
+ fsp->file_pid = global_smbpid;
+ fsp->can_lock = False;
+ fsp->can_read = False;
+ fsp->can_write = 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 = True;
string_set(&fsp->fsp_name,fname);
- fsp->wbmpx_ptr = NULL;
conn->num_files_open++;
return fsp;
}
-/*******************************************************************
- Check if the share mode on a file allows it to be deleted or unlinked.
- Return True if sharing doesn't prevent the operation.
-********************************************************************/
+/****************************************************************************
+ Receive notification that one of our open files has been renamed by another
+ smbd process.
+****************************************************************************/
-BOOL check_file_sharing(connection_struct *conn,char *fname, BOOL rename_op)
+void msg_file_was_renamed(int msg_type, struct process_id src, void *buf, size_t len)
{
- int i;
- int ret = False;
- share_mode_entry *old_shares = 0;
- int num_share_modes;
- SMB_STRUCT_STAT sbuf;
- pid_t pid = sys_getpid();
- SMB_DEV_T dev;
- SMB_INO_T inode;
-
- if (conn->vfs_ops.stat(dos_to_unix(fname,False),&sbuf) == -1)
- return(True);
-
- dev = sbuf.st_dev;
- inode = sbuf.st_ino;
-
- lock_share_entry(conn, dev, inode);
- num_share_modes = get_share_modes(conn, dev, inode, &old_shares);
-
- /*
- * Check if the share modes will give us access.
- */
-
- if(num_share_modes != 0)
- {
- BOOL broke_oplock;
-
- do
- {
-
- broke_oplock = False;
- for(i = 0; i < num_share_modes; i++)
- {
- share_mode_entry *share_entry = &old_shares[i];
-
- /*
- * Break oplocks before checking share modes. See comment in
- * open_file_shared for details.
- * Check if someone has an oplock on this file. If so we must
- * break it before continuing.
- */
- if(BATCH_OPLOCK_TYPE(share_entry->op_type))
- {
-
-#if 0
-
-/* JRA. Try removing this code to see if the new oplock changes
- fix the problem. I'm dubious, but Andrew is recommending we
- try this....
-*/
-
- /*
- * It appears that the NT redirector may have a bug, in that
- * it tries to do an SMBmv on a file that it has open with a
- * batch oplock, and then fails to respond to the oplock break
- * request. This only seems to occur when the client is doing an
- * SMBmv to the smbd it is using - thus we try and detect this
- * condition by checking if the file being moved is open and oplocked by
- * this smbd process, and then not sending the oplock break in this
- * special case. If the file was open with a deny mode that
- * prevents the move the SMBmv will fail anyway with a share
- * violation error. JRA.
- */
- if(rename_op && (share_entry->pid == pid))
- {
-
- DEBUG(0,("check_file_sharing: NT redirector workaround - rename attempted on \
-batch oplocked file %s, dev = %x, inode = %.0f\n", fname, (unsigned int)dev, (double)inode));
-
- /*
- * This next line is a test that allows the deny-mode
- * processing to be skipped. This seems to be needed as
- * NT insists on the rename succeeding (in Office 9x no less !).
- * This should be removed as soon as (a) MS fix the redirector
- * bug or (b) NT SMB support in Samba makes NT not issue the
- * call (as is my fervent hope). JRA.
- */
- continue;
- }
- else
-#endif /* 0 */
- {
-
- DEBUG(5,("check_file_sharing: breaking oplock (%x) on file %s, \
-dev = %x, inode = %.0f\n", share_entry->op_type, fname, (unsigned int)dev, (double)inode));
-
- /* Oplock break.... */
- unlock_share_entry(conn, dev, inode);
- if(request_oplock_break(share_entry, dev, inode) == False)
- {
- free((char *)old_shares);
-
- DEBUG(0,("check_file_sharing: FAILED when breaking oplock (%x) on file %s, \
-dev = %x, inode = %.0f\n", old_shares[i].op_type, fname, (unsigned int)dev, (double)inode));
-
- return False;
- }
- lock_share_entry(conn, dev, inode);
- broke_oplock = True;
- break;
- }
+ 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;
}
- /*
- * If this is a delete request and ALLOW_SHARE_DELETE is set then allow
- * this to proceed. This takes precedence over share modes.
- */
-
- if(!rename_op && GET_ALLOW_SHARE_DELETE(share_entry->share_mode))
- continue;
-
- /*
- * Someone else has a share lock on it, check to see
- * if we can too.
- */
-
- if ((GET_DENY_MODE(share_entry->share_mode) != DENY_DOS) ||
- (share_entry->pid != pid))
- goto free_and_exit;
-
- } /* end for */
-
- if(broke_oplock)
- {
- free((char *)old_shares);
- num_share_modes = get_share_modes(conn, dev, inode, &old_shares);
- }
- } while(broke_oplock);
- }
-
- /* XXXX exactly what share mode combinations should be allowed for
- deleting/renaming? */
- /*
- * If we got here then either there were no share modes or
- * all share modes were DENY_DOS and the pid == getpid() or
- * delete access was requested and all share modes had the
- * ALLOW_SHARE_DELETE bit set (takes precedence over other
- * share modes).
- */
-
- ret = True;
-
-free_and_exit:
-
- unlock_share_entry(conn, dev, inode);
- if(old_shares != NULL)
- free((char *)old_shares);
- return(ret);
+ /* 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 ));
+ }
+ }
}
-
-#undef OLD_NTDOMAIN