Version 1.9.
file opening and share modes
Copyright (C) Andrew Tridgell 1992-1998
+ Copyright (C) Jeremy Allison 2001
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 userdom_struct current_user_info;
extern uint16 global_oplock_port;
extern BOOL global_client_failed_oplock_break;
-extern int global_smbpid;
/****************************************************************************
fd support routines - attempt to do a dos_open.
static int fd_open(struct connection_struct *conn, char *fname,
int flags, mode_t mode)
{
- int fd = conn->vfs_ops.open(dos_to_unix(fname,False),flags,mode);
+ int fd;
+#ifdef O_NONBLOCK
+ flags |= O_NONBLOCK;
+#endif
+
+#ifdef O_NOFOLLOW
+ if (!lp_symlinks(SNUM(conn)))
+ flags |= O_NOFOLLOW;
+#endif
+
+ fd = conn->vfs_ops.open(conn,fname,flags,mode);
/* Fix for files ending in '.' */
if((fd == -1) && (errno == ENOENT) &&
- (strchr(fname,'.')==NULL)) {
+ (strchr_m(fname,'.')==NULL)) {
pstrcat(fname,".");
- fd = conn->vfs_ops.open(dos_to_unix(fname,False),flags,mode);
+ fd = conn->vfs_ops.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;
}
int fd_close(struct connection_struct *conn, files_struct *fsp)
{
- int ret = 0;
-
- /*
- * Deal with transferring any pending fd's if there
- * are POSIX locks outstanding.
- */
-
- if(!fd_close_posix_locks(conn,fsp))
+ if (fsp->fd == -1)
return -1;
-
- if(fsp->fd != -1)
- ret = conn->vfs_ops.close(fsp->fd);
-
- fsp->fd = -1;
- return ret;
+ return fd_close_posix(conn, fsp);
}
****************************************************************************/
static BOOL open_file(files_struct *fsp,connection_struct *conn,
- char *fname1,int flags,mode_t mode)
+ char *fname1,SMB_STRUCT_STAT *psbuf,int flags,mode_t mode)
{
extern struct current_user current_user;
pstring fname;
int accmode = (flags & O_ACCMODE);
- SMB_STRUCT_STAT sbuf;
+ int local_flags = flags;
fsp->fd = -1;
fsp->oplock_type = NO_OPLOCK;
}
}
+ /*
+ * 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 ((accmode == O_RDONLY) && ((flags & O_TRUNC) == O_TRUNC))
+ local_flags = (flags & ~O_ACCMODE)|O_RDWR;
+
+ /*
+ * 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;
+
/* actually do the open */
- fsp->fd = fd_open(conn, fname, flags, mode);
+ fsp->fd = fd_open(conn, fname, local_flags, mode);
if (fsp->fd == -1) {
- DEBUG(3,("Error opening file %s (%s) (flags=%d)\n",
- fname,strerror(errno),flags));
+ DEBUG(3,("Error opening file %s (%s) (local_flags=%d) (flags=%d)\n",
+ fname,strerror(errno),local_flags,flags));
check_for_pipe(fname);
return False;
}
- conn->vfs_ops.fstat(fsp->fd, &sbuf);
+ if (!VALID_STAT(*psbuf)) {
+ if (vfs_fstat(fsp,fsp->fd,psbuf) == -1) {
+ DEBUG(0,("Error doing fstat on open file %s (%s)\n", fname,strerror(errno) ));
+ fd_close(conn, fsp);
+ return False;
+ }
+ }
/*
* POSIX allows read-only opens of directories. We don't
* 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->smbpid = global_smbpid;
- fsp->size = 0;
+ fsp->size = psbuf->st_size;
fsp->pos = -1;
fsp->can_lock = True;
fsp->can_read = ((flags & O_WRONLY)==0);
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.
- */
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));
{
SMB_BIG_UINT mask = (SMB_BIG_UINT)-1;
- if (!fsp->can_write)
- return -1;
-
- if (is_locked(fsp,fsp->conn,mask,0,WRITE_LOCK)){
+ if (is_locked(fsp,fsp->conn,mask,0,WRITE_LOCK,True)){
errno = EACCES;
unix_ERR_class = ERRDOS;
unix_ERR_code = ERRlock;
return -1;
} else {
- return conn->vfs_ops.ftruncate(fsp->fd,0);
+ return conn->vfs_ops.ftruncate(fsp,fsp->fd,0);
}
}
********************************************************************/
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") ||
check if we can open a file with a share mode
****************************************************************************/
-static int check_share_mode( share_mode_entry *share, int deny_mode,
+static BOOL check_share_mode(connection_struct *conn, share_mode_entry *share, int share_mode,
const char *fname, BOOL fcbopen, int *flags)
{
+ int deny_mode = GET_DENY_MODE(share_mode);
int old_open_mode = GET_OPEN_MODE(share->share_mode);
int old_deny_mode = GET_DENY_MODE(share->share_mode);
/*
- * Don't allow any open once the delete on close flag has been
+ * share modes = false means don't bother to check for
+ * DENY mode conflict. This is a *really* bad idea :-). JRA.
+ */
+
+ if(!lp_share_modes(SNUM(conn)))
+ return True;
+
+ /*
+ * Don't allow any opens once the delete on close flag has been
* set.
*/
- if(GET_DELETE_ON_CLOSE_FLAG(share->share_mode)) {
+ 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;
return False;
}
+ /*
+ * If delete access was requested and the existing share mode doesn't have
+ * ALLOW_SHARE_DELETE then deny.
+ */
+
+ if (GET_DELETE_ACCESS_REQUESTED(share_mode) && !GET_ALLOW_SHARE_DELETE(share->share_mode)) {
+ DEBUG(5,("check_share_mode: Failing open on file %s as delete access requested and allow share delete not set.\n",
+ fname ));
+ unix_ERR_class = ERRDOS;
+ unix_ERR_code = ERRbadshare;
+
+ return False;
+ }
+
+ /*
+ * The inverse of the above.
+ * If delete access was granted and the new share mode doesn't have
+ * ALLOW_SHARE_DELETE then deny.
+ */
+
+ if (GET_DELETE_ACCESS_REQUESTED(share->share_mode) && !GET_ALLOW_SHARE_DELETE(share_mode)) {
+ DEBUG(5,("check_share_mode: Failing open on file %s as delete access granted and allow share delete not requested.\n",
+ fname ));
+ unix_ERR_class = ERRDOS;
+ unix_ERR_code = ERRbadshare;
+
+ return False;
+ }
+
{
int access_allowed = access_table(deny_mode,old_deny_mode,old_open_mode,
- (share->pid == getpid()),is_executable(fname));
+ (share->pid == sys_getpid()),is_executable(fname));
if ((access_allowed == AFAIL) ||
(!fcbopen && (access_allowed == AREAD && *flags == O_RDWR)) ||
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;
-
- /*
- * Check if the share modes will give us access.
- */
-
- do {
-
- broke_oplock = False;
- *p_all_current_opens_are_level_II = True;
-
- 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((*p_oplock_request && EXCLUSIVE_OPLOCK_TYPE(share_entry->op_type)) ||
- (!*p_oplock_request && (share_entry->op_type != NO_OPLOCK))) {
-
- 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, \
+ int i;
+ int num_share_modes;
+ int oplock_contention_count = 0;
+ share_mode_entry *old_shares = 0;
+ BOOL fcbopen = False;
+ BOOL broke_oplock;
+
+ if(GET_OPEN_MODE(share_mode) == DOS_OPEN_FCB)
+ fcbopen = True;
+
+ num_share_modes = get_share_modes(conn, dev, inode, &old_shares);
+
+ if(num_share_modes == 0)
+ return 0;
+
+ /*
+ * Check if the share modes will give us access.
+ */
+
+ do {
+ share_mode_entry broken_entry;
+
+ broke_oplock = False;
+ *p_all_current_opens_are_level_II = True;
+
+ 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((*p_oplock_request && EXCLUSIVE_OPLOCK_TYPE(share_entry->op_type)) ||
+ (!*p_oplock_request && (share_entry->op_type != NO_OPLOCK))) {
+
+ BOOL opb_ret;
+
+ DEBUG(5,("open_mode_check: oplock_request = %d, breaking oplock (%x) on file %s, \
+dev = %x, inode = %.0f\n", *p_oplock_request, share_entry->op_type, fname, (unsigned int)dev, (double)inode));
+
+ /* Oplock break - unlock to request it. */
+ unlock_share_entry(conn, dev, inode);
+
+ opb_ret = request_oplock_break(share_entry);
+
+ /* Now relock. */
+ lock_share_entry(conn, dev, inode);
+
+ if(opb_ret == False) {
+ DEBUG(0,("open_mode_check: FAILED when breaking oplock (%x) on file %s, \
dev = %x, inode = %.0f\n", old_shares[i].op_type, fname, (unsigned int)dev, (double)inode));
- 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(old_shares != 0)
- free((char *)old_shares);
-
- /*
- * 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 num_share_modes;
+ SAFE_FREE(old_shares);
+ errno = EACCES;
+ unix_ERR_class = ERRDOS;
+ unix_ERR_code = ERRbadshare;
+ return -1;
+ }
+
+ broke_oplock = True;
+ broken_entry = *share_entry;
+ 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(conn, share_entry, share_mode, fname, fcbopen, p_flags) == False) {
+ SAFE_FREE(old_shares);
+ errno = EACCES;
+ return -1;
+ }
+
+ } /* end for */
+
+ if(broke_oplock) {
+ SAFE_FREE(old_shares);
+ num_share_modes = get_share_modes(conn, dev, inode, &old_shares);
+ oplock_contention_count++;
+
+ /* Paranoia check that this is no longer an exlusive entry. */
+ for(i = 0; i < num_share_modes; i++) {
+ share_mode_entry *share_entry = &old_shares[i];
+
+ if (share_modes_identical(&broken_entry, share_entry) &&
+ EXCLUSIVE_OPLOCK_TYPE(share_entry->op_type) ) {
+
+ /*
+ * This should not happen. The target left this oplock
+ * as exlusive.... The process *must* be dead....
+ */
+
+ DEBUG(0,("open_mode_check: exlusive oplock left by process %d after break ! For file %s, \
+dev = %x, inode = %.0f. Deleting it to continue...\n", (int)broken_entry.pid, fname, (unsigned int)dev, (double)inode));
+
+ if (process_exists(broken_entry.pid)) {
+ DEBUG(0,("open_mode_check: Existent process %d left active oplock.\n",
+ broken_entry.pid ));
+ }
+
+ if (del_share_entry(dev, inode, &broken_entry, NULL) == -1) {
+ errno = EACCES;
+ unix_ERR_class = ERRDOS;
+ unix_ERR_code = ERRbadshare;
+ return -1;
+ }
+
+ /*
+ * We must reload the share modes after deleting the
+ * other process's entry.
+ */
+
+ SAFE_FREE(old_shares);
+ num_share_modes = get_share_modes(conn, dev, inode, &old_shares);
+ break;
+ }
+ } /* end for paranoia... */
+ } /* end if broke_oplock */
+
+ } while(broke_oplock);
+
+ if(old_shares != 0)
+ SAFE_FREE(old_shares);
+
+ /*
+ * 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 num_share_modes;
}
/****************************************************************************
- Open a file with a share mode.
+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)
+{
+#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
+ ;;
+}
-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)
+
+/****************************************************************************
+ Open a file with a share mode. On output from this open we are guarenteeing
+ that
+****************************************************************************/
+files_struct *open_file_shared(connection_struct *conn,char *fname, SMB_STRUCT_STAT *psbuf,
+ 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 delete_access_requested = GET_DELETE_ACCESS_REQUESTED(share_mode);
+ BOOL delete_on_close = GET_DELETE_ON_CLOSE_FLAG(share_mode);
+ BOOL file_existed = VALID_STAT(*psbuf);
BOOL fcbopen = False;
SMB_DEV_T dev = 0;
SMB_INO_T inode = 0;
ignored */
*Access = DOS_OPEN_WRONLY;
*action = FILE_WAS_CREATED;
- return print_fsp_open(conn, fname);
+ return print_fsp_open(conn);
}
- fsp = file_new();
+ fsp = file_new(conn);
if(!fsp)
return NULL;
- fsp->fd = -1;
-
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 ));
return NULL;
}
- if (GET_FILE_CREATE_DISPOSITION(ofun) == FILE_CREATE_IF_NOT_EXIST)
+ if (CAN_WRITE(conn) && (GET_FILE_CREATE_DISPOSITION(ofun) == FILE_CREATE_IF_NOT_EXIST))
flags2 |= O_CREAT;
- if (GET_FILE_OPEN_DISPOSITION(ofun) == FILE_EXISTS_TRUNCATE)
+ if (CAN_WRITE(conn) && (GET_FILE_OPEN_DISPOSITION(ofun) == FILE_EXISTS_TRUNCATE))
flags2 |= O_TRUNC;
if (GET_FILE_OPEN_DISPOSITION(ofun) == FILE_EXISTS_FAIL)
#endif /* O_SYNC */
if (flags != O_RDONLY && file_existed &&
- (!CAN_WRITE(conn) || IS_DOS_READONLY(dos_mode(conn,fname,&sbuf)))) {
+ (!CAN_WRITE(conn) || IS_DOS_READONLY(dos_mode(conn,fname,psbuf)))) {
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" ));
}
if (file_existed) {
- dev = sbuf.st_dev;
- inode = sbuf.st_ino;
+
+ dev = psbuf->st_dev;
+ inode = psbuf->st_ino;
lock_share_entry(conn, dev, inode);
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) {
+
+ /*
+ * 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.
+ */
+ fsp_open = open_file(fsp,conn,fname,psbuf,flags|(flags2&~(O_TRUNC|O_CREAT)),mode);
+
+ DEBUG(4,("open_file_shared : share_mode deny - calling open_file with \
+flags=0x%X flags2=0x%X mode=0%o returned %d\n",
+ flags,(flags2&~(O_TRUNC|O_CREAT)),(int)mode,(int)fsp_open ));
+
unlock_share_entry(conn, dev, inode);
+ if (fsp_open)
+ fd_close(conn, fsp);
file_free(fsp);
return NULL;
}
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);
+ /*
+ * open_file strips any O_TRUNC flags itself.
+ */
+
+ fsp_open = open_file(fsp,conn,fname,psbuf,flags|flags2,mode);
if (!fsp_open && (flags == O_RDWR) && (errno != ENOENT) && fcbopen) {
- if((fsp_open = open_file(fsp,conn,fname,O_RDONLY,mode)) == True)
+ if((fsp_open = open_file(fsp,conn,fname,psbuf,O_RDONLY,mode)) == True)
flags = O_RDONLY;
}
return NULL;
}
+ /*
+ * If there are any share modes set then the file *did*
+ * exist. Ensure we return the correct value for action.
+ */
+
+ if (num_share_modes > 0)
+ file_existed = True;
+
/*
* We exit this block with the share entry *locked*.....
*/
}
+ /* note that we ignore failure for the following. It is
+ basically a hack for NFS, and NFS will never set one of
+ these only read them. Nobody but Samba can ever set a deny
+ mode and we have already checked our more authoritative
+ locking database for permission to set this deny mode. If
+ the kernel refuses the operations then the kernel is wrong */
+ kernel_flock(fsp, deny_mode);
+
/*
* At this point onwards, we can guarentee that the share entry
* is locked, whether we created the file or not, and that the
* If requested, truncate the file.
*/
- 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 (flags2&O_TRUNC) {
+ /*
+ * We are modifing the file after open - update the stat struct..
+ */
+ if ((truncate_unless_locked(conn,fsp) == -1) || (vfs_fstat(fsp,fsp->fd,psbuf)==-1)) {
+ unlock_share_entry_fsp(fsp);
+ fd_close(conn,fsp);
+ file_free(fsp);
+ return NULL;
+ }
}
switch (flags) {
fsp->share_mode = SET_DENY_MODE(deny_mode) |
SET_OPEN_MODE(open_mode) |
- SET_ALLOW_SHARE_DELETE(allow_share_delete);
+ SET_ALLOW_SHARE_DELETE(allow_share_delete) |
+ SET_DELETE_ACCESS_REQUESTED(delete_access_requested);
+
+ DEBUG(10,("open_file_shared : share_mode = %x\n", fsp->share_mode ));
if (Access)
(*Access) = open_mode;
set_share_mode(fsp, port, oplock_request);
+ if (delete_on_close) {
+ NTSTATUS result = set_delete_on_close_internal(fsp, delete_on_close);
+
+ if (NT_STATUS_V(result) != NT_STATUS_V(NT_STATUS_OK)) {
+ unlock_share_entry_fsp(fsp);
+ fd_close(conn,fsp);
+ file_free(fsp);
+ return NULL;
+ }
+ }
+
+ /*
+ * Take care of inherited ACLs on created files. JRA.
+ */
+
+ if (!file_existed && (conn->vfs_ops.fchmod_acl != NULL)) {
+ int saved_errno = errno; /* We might get ENOSYS in the next call.. */
+ if (conn->vfs_ops.fchmod_acl(fsp, fsp->fd, mode) == -1 && errno == ENOSYS)
+ errno = saved_errno; /* Ignore ENOSYS */
+ }
+
unlock_share_entry_fsp(fsp);
conn->num_files_open++;
with the 'stat_open' flag set
****************************************************************************/
-files_struct *open_file_stat(connection_struct *conn,
- char *fname, int smb_ofun, SMB_STRUCT_STAT *pst, int *action)
+files_struct *open_file_stat(connection_struct *conn, char *fname,
+ SMB_STRUCT_STAT *psbuf, int smb_ofun, int *action)
{
extern struct current_user current_user;
- files_struct *fsp = file_new();
-
- if(!fsp)
- return NULL;
+ files_struct *fsp = 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)) {
+ DEBUG(0,("open_file_stat: unable to stat name = %s. Error was %s\n", fname, strerror(errno) ));
return NULL;
}
- if(S_ISDIR(pst->st_mode)) {
+ if(S_ISDIR(psbuf->st_mode)) {
DEBUG(0,("open_file_stat: %s is a directory !\n", fname ));
- file_free(fsp);
return NULL;
}
+ 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));
* 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->size = psbuf->st_size;
fsp->vuid = current_user.vuid;
- fsp->smbpid = global_smbpid;
- fsp->size = 0;
fsp->pos = -1;
fsp->can_lock = False;
fsp->can_read = 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.
- */
string_set(&fsp->fsp_name,fname);
- fsp->wbmpx_ptr = NULL;
- fsp->wcp = NULL; /* Write cache pointer. */
+ fsp->wcp = NULL; /* Write cache pointer. */
conn->num_files_open++;
return fsp;
}
+/****************************************************************************
+ Open a file for for write to ensure that we can fchmod it.
+****************************************************************************/
+
+files_struct *open_file_fchmod(connection_struct *conn, char *fname, SMB_STRUCT_STAT *psbuf)
+{
+ files_struct *fsp = NULL;
+ BOOL fsp_open;
+
+ if (!VALID_STAT(*psbuf))
+ return NULL;
+
+ fsp = file_new(conn);
+ if(!fsp)
+ return NULL;
+
+ fsp_open = open_file(fsp,conn,fname,psbuf,O_WRONLY,0);
+
+ /*
+ * This is not a user visible file open.
+ * Don't set a share mode and don't increment
+ * the 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)
+files_struct *open_directory(connection_struct *conn, char *fname,
+ SMB_STRUCT_STAT *psbuf, int share_mode, 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();
+ files_struct *fsp = file_new(conn);
+ BOOL delete_on_close = GET_DELETE_ON_CLOSE_FLAG(share_mode);
if(!fsp)
return NULL;
- if(conn->vfs_ops.stat(dos_to_unix(fname, False), &st) == 0) {
+ fsp->conn = conn; /* The vfs_fXXX() macros need this. */
+
+ if (VALID_STAT(*psbuf))
got_stat = True;
- }
if (got_stat && (GET_FILE_OPEN_DISPOSITION(smb_ofun) == FILE_EXISTS_FAIL)) {
file_free(fsp);
if (got_stat) {
- if(!S_ISDIR(st.st_mode)) {
+ if(!S_ISDIR(psbuf->st_mode)) {
DEBUG(0,("open_directory: %s is not a directory !\n", fname ));
file_free(fsp);
errno = EACCES;
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",
+ if(vfs_mkdir(conn,fname, unix_mode(conn,aDIR, fname)) < 0) {
+ DEBUG(2,("open_directory: unable to create %s. Error was %s\n",
fname, strerror(errno) ));
file_free(fsp);
return NULL;
}
+
+ if(vfs_stat(conn,fname, psbuf) != 0) {
+ file_free(fsp);
+ return NULL;
+ }
+
*action = FILE_WAS_CREATED;
}
return NULL;
}
- if(!S_ISDIR(st.st_mode)) {
+ if(!S_ISDIR(psbuf->st_mode)) {
DEBUG(0,("open_directory: %s is not a directory !\n", fname ));
file_free(fsp);
return NULL;
*action = FILE_WAS_OPENED;
}
- DEBUG(5,("open_directory: opening directory %s\n",
- fname));
+ 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->size = psbuf->st_size;
fsp->vuid = current_user.vuid;
- fsp->smbpid = global_smbpid;
- fsp->size = 0;
fsp->pos = -1;
fsp->can_lock = True;
fsp->can_read = False;
fsp->can_write = False;
- fsp->share_mode = 0;
+ fsp->share_mode = share_mode;
fsp->print_file = False;
fsp->modified = False;
fsp->oplock_type = NO_OPLOCK;
fsp->is_directory = 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.
- */
string_set(&fsp->fsp_name,fname);
- fsp->wbmpx_ptr = NULL;
+ if (delete_on_close) {
+ NTSTATUS result = set_delete_on_close_internal(fsp, delete_on_close);
+
+ if (NT_STATUS_V(result) != NT_STATUS_V(NT_STATUS_OK)) {
+ file_free(fsp);
+ return NULL;
+ }
+ }
conn->num_files_open++;
return fsp;
share_mode_entry *old_shares = 0;
int num_share_modes;
SMB_STRUCT_STAT sbuf;
- pid_t pid = getpid();
+ 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)
+ if (vfs_stat(conn,fname,&sbuf) == -1)
return(True);
dev = sbuf.st_dev;
/* Oplock break.... */
unlock_share_entry(conn, dev, inode);
- if(request_oplock_break(share_entry, dev, inode) == False)
+ if(request_oplock_break(share_entry) == 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));
+ SAFE_FREE(old_shares);
return False;
}
lock_share_entry(conn, dev, inode);
if(broke_oplock)
{
- free((char *)old_shares);
+ SAFE_FREE(old_shares);
num_share_modes = get_share_modes(conn, dev, inode, &old_shares);
}
} while(broke_oplock);
free_and_exit:
unlock_share_entry(conn, dev, inode);
- if(old_shares != NULL)
- free((char *)old_shares);
+ SAFE_FREE(old_shares);
return(ret);
}
git.samba.org / ira / wip.git / blobdiff