Open a file.
****************************************************************************/
-static void open_file(files_struct *fsp,connection_struct *conn,
+static BOOL open_file(files_struct *fsp,connection_struct *conn,
char *fname1,int flags,mode_t mode)
{
extern struct current_user current_user;
if(accmode != O_RDONLY) {
DEBUG(3,("Permission denied opening %s\n",fname));
check_for_pipe(fname);
- return;
+ 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
DEBUG(3,("Error opening file %s (%s) (flags=%d)\n",
fname,strerror(errno),flags));
check_for_pipe(fname);
- return;
+ return False;
}
conn->vfs_ops.fstat(fsp->fd, &sbuf);
if(S_ISDIR(sbuf.st_mode)) {
fd_close(conn, fsp);
errno = EISDIR;
- return;
+ return False;
}
- conn->num_files_open++;
fsp->mode = sbuf.st_mode;
fsp->inode = sbuf.st_ino;
fsp->dev = sbuf.st_dev;
DEBUG(2,("%s opened file %s read=%s write=%s (numopen=%d)\n",
*sesssetup_user ? sesssetup_user : conn->user,fsp->fsp_name,
BOOLSTR(fsp->can_read), BOOLSTR(fsp->can_write),
- conn->num_files_open));
+ conn->num_files_open + 1));
+
+ return True;
}
/****************************************************************************
Truncate a file after checking locking; close file if locked.
**************************************************************************/
-static void truncate_unless_locked(files_struct *fsp, connection_struct *conn, int token,
- BOOL *share_locked)
+static int truncate_unless_locked(struct connection_struct *conn, files_struct *fsp)
{
- if (fsp->can_write){
- SMB_OFF_T mask2 = ((SMB_OFF_T)0x3) << (SMB_OFF_T_BITS-4);
- SMB_OFF_T mask = (mask2<<2);
-
- if (is_locked(fsp,conn,~mask,0,WRITE_LOCK)){
- /* If share modes are in force for this connection we
- have the share entry locked. Unlock it before closing. */
- if (*share_locked && lp_share_modes(SNUM(conn)))
- unlock_share_entry_fsp(fsp);
- close_file(fsp,False);
- /* Share mode no longer locked. */
- *share_locked = False;
- errno = EACCES;
- unix_ERR_class = ERRDOS;
- unix_ERR_code = ERRlock;
- } else {
- sys_ftruncate(fsp->fd,0);
- }
+ 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
********************************************************************/
-static BOOL is_executable(char *fname)
+static BOOL is_executable(const char *fname)
{
if ((fname = strrchr(fname,'.'))) {
if (strequal(fname,".com") ||
****************************************************************************/
static int check_share_mode( share_mode_entry *share, int deny_mode,
- char *fname,
- BOOL fcbopen, int *flags)
+ 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);
+ int old_open_mode = GET_OPEN_MODE(share->share_mode);
+ int old_deny_mode = GET_DENY_MODE(share->share_mode);
+
+ /*
+ * Don't allow any open 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 ));
+ unix_ERR_class = ERRDOS;
+ unix_ERR_code = ERRnoaccess;
+ return False;
+ }
+
+ {
+ int access_allowed = access_table(deny_mode,old_deny_mode,old_open_mode,
+ (share->pid == 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));
+
+ unix_ERR_class = ERRDOS;
+ unix_ERR_code = ERRbadshare;
+
+ return False;
+ }
+
+ if (access_allowed == AREAD)
+ *flags = O_RDONLY;
+
+ if (access_allowed == AWRITE)
+ *flags = O_WRONLY;
+
+ }
+
+ return True;
+}
+
+/****************************************************************************
+ Deal with open deny mode and oplock break processing.
+ 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)
+{
+ 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;
+
+ 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)
+ return 0;
/*
- * Don't allow any open once the delete on close flag has been
- * set.
+ * Check if the share modes will give us access.
*/
- 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;
- }
+ do {
- {
- int access_allowed = access_table(deny_mode,old_deny_mode,old_open_mode,
- (share->pid == getpid()),is_executable(fname));
+ broke_oplock = False;
+ *p_all_current_opens_are_level_II = True;
- 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));
+ for(i = 0; i < num_share_modes; i++) {
+ share_mode_entry *share_entry = &old_shares[i];
+
+ /*
+ * 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.
+ */
- unix_ERR_class = ERRDOS;
- unix_ERR_code = ERRbadshare;
+ if((*p_oplock_request && EXCLUSIVE_OPLOCK_TYPE(share_entry->op_type)) ||
+ (!*p_oplock_request && (share_entry->op_type != NO_OPLOCK))) {
- return False;
+ BOOL opb_ret;
+
+ 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));
+
+ /* Oplock break - unlock to request it. */
+ unlock_share_entry(conn, dev, inode);
+
+ opb_ret = request_oplock_break(share_entry, dev, inode);
+
+ /* Now relock. */
+ lock_share_entry(conn, dev, inode);
+
+ 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;
+ }
+
+ broke_oplock = True;
+ *p_all_current_opens_are_level_II = False;
+ break;
+
+ } else if (!LEVEL_II_OPLOCK_TYPE(share_entry->op_type)) {
+ *p_all_current_opens_are_level_II = False;
+ }
+
+ /* someone else has a share lock on it, check to see
+ if we can too */
+
+ if(check_share_mode(share_entry, deny_mode, fname, fcbopen, p_flags) == False) {
+ free((char *)old_shares);
+ errno = EACCES;
+ return -1;
+ }
+
+ } /* end for */
+
+ 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 (access_allowed == AREAD)
- *flags = O_RDONLY;
+ if(old_shares != 0)
+ free((char *)old_shares);
- if (access_allowed == AWRITE)
- *flags = O_WRONLY;
+ /*
+ * 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 ));
}
- return True;
+ return num_share_modes;
}
/****************************************************************************
-open a file with a share mode
+ Open a file with a share mode.
****************************************************************************/
-void open_file_shared(files_struct *fsp,connection_struct *conn,char *fname,int share_mode,int ofun,
+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)
{
- 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 share_locked = False;
- BOOL fcbopen = False;
- int token = 0;
- SMB_DEV_T dev = 0;
- SMB_INO_T inode = 0;
- int num_share_modes = 0;
- int oplock_contention_count = 0;
- BOOL all_current_opens_are_level_II = False;
- fsp->open = False;
- fsp->fd = -1;
-
- if (conn->printer) {
- /* printers are handled completely differently. Most of the passed parameters are
- ignored */
- *Access = DOS_OPEN_WRONLY;
- *action = FILE_WAS_CREATED;
- print_fsp_open(fsp, conn, fname);
- return;
- }
+ 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;
+ files_struct *fsp = NULL;
+ int open_mode=0;
+ uint16 port = 0;
+
+ 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);
+ }
- 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 ));
+ fsp = file_new();
+ if(!fsp)
+ return NULL;
- if (!check_name(fname,conn)) {
- return;
- }
+ fsp->open = False;
+ fsp->fd = -1;
- /* 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_shared: fname = %s, share_mode = %x, ofun = %x, mode = %o, oplock request = %d\n",
+ fname, share_mode, ofun, (int)mode, oplock_request ));
- /* 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 (!check_name(fname,conn)) {
+ file_free(fsp);
+ return NULL;
+ }
+
+ /* ignore any oplock requests if oplocks are disabled */
+ if (!lp_oplocks(SNUM(conn)) || global_client_failed_oplock_break) {
+ oplock_request = 0;
+ }
+
+ /* 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;
+ unix_ERR_code = ERRcannotopen;
#else /* OS2_WPS_FIX */
- unix_ERR_code = ERROR_EAS_NOT_SUPPORTED;
+ unix_ERR_code = ERROR_EAS_NOT_SUPPORTED;
#endif /* OS2_WPS_FIX */
- DEBUG(5,("open_file_shared: OS/2 EA's are not supported.\n"));
- return;
- }
+ DEBUG(5,("open_file_shared: OS/2 EA's are not supported.\n"));
+ file_free(fsp);
+ return NULL;
+ }
- 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 ));
- errno = EEXIST;
- return;
- }
+ 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;
+ }
- if (GET_FILE_CREATE_DISPOSITION(ofun) == FILE_CREATE_IF_NOT_EXIST)
- flags2 |= O_CREAT;
-
- if (GET_FILE_OPEN_DISPOSITION(ofun) == FILE_EXISTS_TRUNCATE)
- flags2 |= O_TRUNC;
-
- 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_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 (GET_FILE_CREATE_DISPOSITION(ofun) == FILE_CREATE_IF_NOT_EXIST)
+ flags2 |= O_CREAT;
+
+ if (GET_FILE_OPEN_DISPOSITION(ofun) == FILE_EXISTS_TRUNCATE)
+ flags2 |= O_TRUNC;
+
+ 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_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 defined(O_SYNC)
- if (GET_FILE_SYNC_OPENMODE(share_mode)) {
- flags2 |= 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" ));
- errno = EACCES;
- return;
- }
- 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));
- errno = EINVAL;
- return;
- }
-
- if (lp_share_modes(SNUM(conn)))
- {
- int i;
- share_mode_entry *old_shares = 0;
-
- if (file_existed)
- {
- dev = sbuf.st_dev;
- inode = sbuf.st_ino;
- lock_share_entry(conn, dev, inode);
- share_locked = True;
- num_share_modes = get_share_modes(conn, dev, inode, &old_shares);
- }
+ 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;
+ }
+ flags = O_RDONLY;
+ }
- /*
- * Check if the share modes will give us access.
- */
+ 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(share_locked && (num_share_modes != 0))
- {
- BOOL broke_oplock;
+ if (file_existed) {
+ dev = sbuf.st_dev;
+ inode = sbuf.st_ino;
- do
- {
+ lock_share_entry(conn, dev, inode);
- broke_oplock = False;
- all_current_opens_are_level_II = True;
+ 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;
+ }
- for(i = 0; i < num_share_modes; i++)
- {
- share_mode_entry *share_entry = &old_shares[i];
-
- /*
- * 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.
- */
- if((oplock_request && EXCLUSIVE_OPLOCK_TYPE(share_entry->op_type)) ||
- (!oplock_request && (share_entry->op_type != NO_OPLOCK)))
- {
+ /*
+ * We exit this block with the share entry *locked*.....
+ */
+ }
- DEBUG(5,("open_file_shared: breaking oplock (%x) on file %s, \
-dev = %x, inode = %.0f\n", share_entry->op_type, fname, (unsigned int)dev, (double)inode));
+ DEBUG(4,("calling open_file with flags=0x%X flags2=0x%X mode=0%o\n",
+ flags,flags2,(int)mode));
- /* Oplock break.... */
- unlock_share_entry(conn, dev, inode);
- if(request_oplock_break(share_entry, dev, inode) == False)
- {
- free((char *)old_shares);
+ fsp->open = open_file(fsp,conn,fname,flags|(flags2&~(O_TRUNC)),mode);
- DEBUG(0,("open_file_shared: FAILED when breaking oplock (%x) on file %s, \
-dev = %x, inode = %.0f\n", old_shares[i].op_type, fname, (unsigned int)dev, (double)inode));
+ if (!fsp->open && (flags == O_RDWR) && (errno != ENOENT) && fcbopen) {
+ if((fsp->open = open_file(fsp,conn,fname,O_RDONLY,mode)) == True)
+ flags = O_RDONLY;
+ }
- errno = EACCES;
- unix_ERR_class = ERRDOS;
- unix_ERR_code = ERRbadshare;
- return;
- }
- lock_share_entry(conn, dev, inode);
- broke_oplock = True;
- all_current_opens_are_level_II = False;
- break;
- } else if (!LEVEL_II_OPLOCK_TYPE(share_entry->op_type)) {
- all_current_opens_are_level_II = False;
- }
+ if (!fsp->open) {
+ if(file_existed)
+ unlock_share_entry(conn, dev, inode);
+ file_free(fsp);
+ return NULL;
+ }
- /* someone else has a share lock on it, check to see
- if we can too */
- if(check_share_mode(share_entry, deny_mode, fname, fcbopen, &flags) == False)
- {
- free((char *)old_shares);
- unlock_share_entry(conn, dev, inode);
- errno = EACCES;
- return;
- }
+ /*
+ * 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.
+ */
- } /* end for */
+ if (!file_existed) {
- if(broke_oplock)
- {
- free((char *)old_shares);
- num_share_modes = get_share_modes(conn, dev, inode, &old_shares);
- oplock_contention_count++;
- }
- } while(broke_oplock);
- }
+ lock_share_entry_fsp(fsp);
- if(old_shares != 0)
- free((char *)old_shares);
- }
+ num_share_modes = open_mode_check(conn, fname, dev, inode, share_mode,
+ &flags, &oplock_request, &all_current_opens_are_level_II);
- /*
- * Refuse to grant an oplock in case the contention limit is
- * reached when going through the lock list multiple times.
- */
+ if(num_share_modes == -1) {
+ unlock_share_entry_fsp(fsp);
+ fd_close(conn,fsp);
+ file_free(fsp);
+ return NULL;
+ }
- if(oplock_contention_count >= lp_oplock_contention_limit(SNUM(conn)))
- {
- oplock_request = 0;
- DEBUG(4,("open_file_shared: oplock contention = %d. Not granting oplock.\n",
- oplock_contention_count ));
- }
+ /*
+ * 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));
+ /*
+ * 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.
+ */
- open_file(fsp,conn,fname,flags|(flags2&~(O_TRUNC)),mode);
- if (!fsp->open && flags==O_RDWR && errno != ENOENT && fcbopen) {
- flags = O_RDONLY;
- open_file(fsp,conn,fname,flags,mode);
- }
+ /*
+ * If requested, truncate the file.
+ */
- if (fsp->open)
- {
- int open_mode=0;
+ if ((flags2&O_TRUNC) && (truncate_unless_locked(conn,fsp) == -1)) {
+ unlock_share_entry_fsp(fsp);
+ fd_close(conn,fsp);
+ file_free(fsp);
+ return NULL;
+ }
- if((share_locked == False) && lp_share_modes(SNUM(conn)))
- {
- /* We created the file - thus we must now lock the share entry before creating it. */
- lock_share_entry_fsp(fsp);
- share_locked = True;
- }
+ 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;
+ }
- 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);
- fsp->share_mode = SET_DENY_MODE(deny_mode) |
- SET_OPEN_MODE(open_mode) |
- SET_ALLOW_SHARE_DELETE(allow_share_delete);
+ if (Access)
+ (*Access) = open_mode;
- if (Access)
- (*Access) = open_mode;
+ 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;
+ }
- 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;
- }
- /* We must create the share mode entry before truncate as
- truncate can fail due to locking and have to close the
- file (which expects the share_mode_entry to be there).
- */
- if (lp_share_modes(SNUM(conn)))
- {
- uint16 port = 0;
+ /*
+ * Setup the oplock info in both the shared memory and
+ * file structs.
+ */
- /*
- * Setup the oplock info in both the shared memory and
- * 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(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;
- }
+ set_share_mode(fsp, port, oplock_request);
- set_share_mode(fsp, port, oplock_request);
- }
+ unlock_share_entry_fsp(fsp);
- if ((flags2&O_TRUNC) && file_existed)
- truncate_unless_locked(fsp,conn,token,&share_locked);
- }
+ conn->num_files_open++;
- if (share_locked && lp_share_modes(SNUM(conn)))
- unlock_share_entry_fsp(fsp);
+ return fsp;
}
/****************************************************************************
with the 'stat_open' flag set
****************************************************************************/
-int open_file_stat(files_struct *fsp,connection_struct *conn,
+files_struct *open_file_stat(connection_struct *conn,
char *fname, int smb_ofun, SMB_STRUCT_STAT *pst, int *action)
{
extern struct current_user current_user;
+ files_struct *fsp = file_new();
+
+ 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) ));
- return -1;
+ file_free(fsp);
+ return NULL;
}
if(S_ISDIR(pst->st_mode)) {
DEBUG(0,("open_file_stat: %s is a directory !\n", fname ));
- return -1;
+ file_free(fsp);
+ return NULL;
}
*action = FILE_WAS_OPENED;
*/
fsp->fd = -1;
- conn->num_files_open++;
fsp->mode = 0;
GetTimeOfDay(&fsp->open_time);
fsp->vuid = current_user.vuid;
fsp->wbmpx_ptr = NULL;
fsp->wcp = NULL; /* Write cache pointer. */
- return 0;
+ conn->num_files_open++;
+
+ return fsp;
}
/****************************************************************************
Open a directory from an NT SMB call.
****************************************************************************/
-int open_directory(files_struct *fsp,connection_struct *conn,
+files_struct *open_directory(connection_struct *conn,
char *fname, int smb_ofun, mode_t unixmode, int *action)
{
extern struct current_user current_user;
SMB_STRUCT_STAT st;
BOOL got_stat = False;
+ files_struct *fsp = file_new();
+
+ if(!fsp)
+ 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. */
- return -1;
+ return NULL;
}
if (GET_FILE_CREATE_DISPOSITION(smb_ofun) == FILE_CREATE_IF_NOT_EXIST) {
if(!S_ISDIR(st.st_mode)) {
DEBUG(0,("open_directory: %s is not a directory !\n", fname ));
+ file_free(fsp);
errno = EACCES;
- return -1;
+ return NULL;
}
*action = FILE_WAS_OPENED;
if(!CAN_WRITE(conn)) {
DEBUG(2,("open_directory: failing create on read-only share\n"));
+ file_free(fsp);
errno = EACCES;
- return -1;
+ return NULL;
}
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) ));
- return -1;
+ file_free(fsp);
+ return NULL;
}
*action = FILE_WAS_CREATED;
if(!got_stat) {
DEBUG(0,("open_directory: unable to stat name = %s. Error was %s\n",
fname, strerror(errno) ));
- return -1;
+ file_free(fsp);
+ return NULL;
}
if(!S_ISDIR(st.st_mode)) {
DEBUG(0,("open_directory: %s is not a directory !\n", fname ));
- return -1;
+ file_free(fsp);
+ return NULL;
}
*action = FILE_WAS_OPENED;
*/
fsp->fd = -1;
- conn->num_files_open++;
fsp->mode = 0;
GetTimeOfDay(&fsp->open_time);
fsp->vuid = current_user.vuid;
string_set(&fsp->fsp_name,fname);
fsp->wbmpx_ptr = NULL;
- return 0;
+ conn->num_files_open++;
+
+ return fsp;
}
/*******************************************************************
SMB_DEV_T dev;
SMB_INO_T inode;
- if(!lp_share_modes(SNUM(conn)))
- return True;
-
- if (conn->vfs_ops.stat(dos_to_unix(fname,False),&sbuf) == -1) return(True);
+ if (conn->vfs_ops.stat(dos_to_unix(fname,False),&sbuf) == -1)
+ return(True);
dev = sbuf.st_dev;
inode = sbuf.st_ino;
unix_convert(fname,conn,0,&bad_path,NULL);
- fsp = file_new();
- if (!fsp)
- return(ERROR(ERRSRV,ERRnofids));
-
if (!check_name(fname,conn))
{
if((errno == ENOENT) && bad_path)
unix_ERR_class = ERRDOS;
unix_ERR_code = ERRbadpath;
}
- file_free(fsp);
return(UNIXERROR(ERRDOS,ERRnoaccess));
}
unixmode = unix_mode(conn,open_attr | aARCH, fname);
- open_file_shared(fsp,conn,fname,open_mode,open_ofun,unixmode,
+ fsp = open_file_shared(conn,fname,open_mode,open_ofun,unixmode,
oplock_request, &rmode,&smb_action);
- if (!fsp->open)
+ if (!fsp)
{
if((errno == ENOENT) && bad_path)
{
unix_ERR_class = ERRDOS;
unix_ERR_code = ERRbadpath;
}
- file_free(fsp);
return(UNIXERROR(ERRDOS,ERRnoaccess));
}
* the share mode contained ALLOW_SHARE_DELETE
*/
- if(lp_share_modes(SNUM(conn)))
+ if(!GET_ALLOW_SHARE_DELETE(fsp->share_mode))
+ return(ERROR(ERRDOS,ERRnoaccess));
+
+ /*
+ * If the flag has been set then
+ * modify the share mode entry for all files we have open
+ * on this device and inode to tell other smbds we have
+ * changed the delete on close flag.
+ */
+
+ if(delete_on_close && !GET_DELETE_ON_CLOSE_FLAG(fsp->share_mode))
{
- if(!GET_ALLOW_SHARE_DELETE(fsp->share_mode))
+ int i;
+ files_struct *iterate_fsp;
+ SMB_DEV_T dev = fsp->dev;
+ SMB_INO_T inode = fsp->inode;
+ int num_share_modes;
+ share_mode_entry *current_shares = NULL;
+
+ if (lock_share_entry_fsp(fsp) == False)
return(ERROR(ERRDOS,ERRnoaccess));
/*
- * If the flag has been set then
- * modify the share mode entry for all files we have open
- * on this device and inode to tell other smbds we have
- * changed the delete on close flag.
+ * Before we allow this we need to ensure that all current opens
+ * on the file have the GET_ALLOW_SHARE_DELETE flag set. If they
+ * do not then we deny this (as we are essentially deleting the
+ * file at this point.
*/
- if(delete_on_close && !GET_DELETE_ON_CLOSE_FLAG(fsp->share_mode))
+ num_share_modes = get_share_modes(conn, dev, inode, ¤t_shares);
+ for(i = 0; i < num_share_modes; i++)
{
- int i;
- files_struct *iterate_fsp;
- SMB_DEV_T dev = fsp->dev;
- SMB_INO_T inode = fsp->inode;
- int num_share_modes;
- share_mode_entry *current_shares = NULL;
-
- if (lock_share_entry_fsp(fsp) == False)
- return(ERROR(ERRDOS,ERRnoaccess));
-
- /*
- * Before we allow this we need to ensure that all current opens
- * on the file have the GET_ALLOW_SHARE_DELETE flag set. If they
- * do not then we deny this (as we are essentially deleting the
- * file at this point.
- */
-
- num_share_modes = get_share_modes(conn, dev, inode, ¤t_shares);
- for(i = 0; i < num_share_modes; i++)
+ if(!GET_ALLOW_SHARE_DELETE(current_shares[i].share_mode))
{
- if(!GET_ALLOW_SHARE_DELETE(current_shares[i].share_mode))
- {
- DEBUG(5,("call_trans2setfilepathinfo: refusing to set delete on close flag for fnum = %d, \
+ DEBUG(5,("call_trans2setfilepathinfo: refusing to set delete on close flag for fnum = %d, \
file %s as a share exists that was not opened with FILE_DELETE access.\n",
- fsp->fnum, fsp->fsp_name ));
- /*
- * Release the lock.
- */
+ fsp->fnum, fsp->fsp_name ));
+ /*
+ * Release the lock.
+ */
- unlock_share_entry_fsp(fsp);
+ unlock_share_entry_fsp(fsp);
- /*
- * current_shares was malloced by get_share_modes - free it here.
- */
+ /*
+ * current_shares was malloced by get_share_modes - free it here.
+ */
- free((char *)current_shares);
+ free((char *)current_shares);
- /*
- * Even though share violation would be more appropriate here,
- * return ERRnoaccess as that's what NT does.
- */
+ /*
+ * Even though share violation would be more appropriate here,
+ * return ERRnoaccess as that's what NT does.
+ */
- return(ERROR(ERRDOS,ERRnoaccess));
- }
+ return(ERROR(ERRDOS,ERRnoaccess));
}
+ }
- /*
- * current_shares was malloced by get_share_modes - free it here.
- */
+ /*
+ * current_shares was malloced by get_share_modes - free it here.
+ */
- free((char *)current_shares);
+ free((char *)current_shares);
- DEBUG(10,("call_trans2setfilepathinfo: %s delete on close flag for fnum = %d, file %s\n",
- delete_on_close ? "Adding" : "Removing", fsp->fnum, fsp->fsp_name ));
+ DEBUG(10,("call_trans2setfilepathinfo: %s delete on close flag for fnum = %d, file %s\n",
+ delete_on_close ? "Adding" : "Removing", fsp->fnum, fsp->fsp_name ));
- /*
- * Go through all files we have open on the same device and
- * inode (hanging off the same hash bucket) and set the DELETE_ON_CLOSE_FLAG.
- * Other smbd's that have this file open will have to fend for themselves. We
- * take care of this (rare) case in close_file(). See the comment there.
- */
+ /*
+ * Go through all files we have open on the same device and
+ * inode (hanging off the same hash bucket) and set the DELETE_ON_CLOSE_FLAG.
+ * Other smbd's that have this file open will have to fend for themselves. We
+ * take care of this (rare) case in close_file(). See the comment there.
+ */
- for(iterate_fsp = file_find_di_first(dev, inode); iterate_fsp;
- iterate_fsp = file_find_di_next(iterate_fsp))
- {
- int new_share_mode = (delete_on_close ?
- (iterate_fsp->share_mode | DELETE_ON_CLOSE_FLAG) :
- (iterate_fsp->share_mode & ~DELETE_ON_CLOSE_FLAG) );
+ for(iterate_fsp = file_find_di_first(dev, inode); iterate_fsp;
+ iterate_fsp = file_find_di_next(iterate_fsp))
+ {
+ int new_share_mode = (delete_on_close ?
+ (iterate_fsp->share_mode | DELETE_ON_CLOSE_FLAG) :
+ (iterate_fsp->share_mode & ~DELETE_ON_CLOSE_FLAG) );
- DEBUG(10,("call_trans2setfilepathinfo: Changing share mode for fnum %d, file %s \
+ DEBUG(10,("call_trans2setfilepathinfo: Changing share mode for fnum %d, file %s \
dev = %x, inode = %.0f from %x to %x\n",
- iterate_fsp->fnum, iterate_fsp->fsp_name, (unsigned int)dev,
- (double)inode, iterate_fsp->share_mode, new_share_mode ));
+ iterate_fsp->fnum, iterate_fsp->fsp_name, (unsigned int)dev,
+ (double)inode, iterate_fsp->share_mode, new_share_mode ));
- if(modify_share_mode(iterate_fsp, new_share_mode, iterate_fsp->oplock_type)==False)
- DEBUG(0,("call_trans2setfilepathinfo: failed to change delete on close for fnum %d, \
+ if(modify_share_mode(iterate_fsp, new_share_mode, iterate_fsp->oplock_type)==False)
+ DEBUG(0,("call_trans2setfilepathinfo: failed to change delete on close for fnum %d, \
dev = %x, inode = %.0f\n", iterate_fsp->fnum, (unsigned int)dev, (double)inode));
- }
+ }
- /*
- * Set the delete on close flag in the reference
- * counted struct. Delete when the last reference
- * goes away.
- */
- fsp->delete_on_close = delete_on_close;
+ /*
+ * Set the delete on close flag in the reference
+ * counted struct. Delete when the last reference
+ * goes away.
+ */
+ fsp->delete_on_close = delete_on_close;
- unlock_share_entry_fsp(fsp);
+ unlock_share_entry_fsp(fsp);
- DEBUG(10, ("call_trans2setfilepathinfo: %s delete on close flag for fnum = %d, file %s\n",
- delete_on_close ? "Added" : "Removed", fsp->fnum, fsp->fsp_name ));
+ DEBUG(10, ("call_trans2setfilepathinfo: %s delete on close flag for fnum = %d, file %s\n",
+ delete_on_close ? "Added" : "Removed", fsp->fnum, fsp->fsp_name ));
- } /* end if(delete_on_close && !GET_DELETE_ON_CLOSE_FLAG(fsp->share_mode)) */
- } /* end if lp_share_modes() */
+ } /* end if(delete_on_close && !GET_DELETE_ON_CLOSE_FLAG(fsp->share_mode)) */
} /* end if is_directory. */
} else
return(ERROR(ERRDOS,ERRunknownlevel));
git.samba.org / ira / wip.git / commitdiff