#include "includes.h"
extern const struct generic_mapping file_generic_mapping;
-extern struct current_user current_user;
-extern userdom_struct current_user_info;
extern bool global_client_failed_oplock_break;
struct deferred_open_record {
struct file_id id;
};
+/****************************************************************************
+ SMB1 file varient of se_access_check. Never test FILE_READ_ATTRIBUTES.
+****************************************************************************/
+
+NTSTATUS smb1_file_se_access_check(const struct security_descriptor *sd,
+ const NT_USER_TOKEN *token,
+ uint32_t access_desired,
+ uint32_t *access_granted)
+{
+ return se_access_check(sd,
+ token,
+ (access_desired & ~FILE_READ_ATTRIBUTES),
+ access_granted);
+}
+
+/****************************************************************************
+ Check if we have open rights.
+****************************************************************************/
+
+static NTSTATUS check_open_rights(struct connection_struct *conn,
+ const char *fname,
+ uint32_t access_mask,
+ uint32_t *access_granted)
+{
+ /* Check if we have rights to open. */
+ NTSTATUS status;
+ struct security_descriptor *sd;
+
+ *access_granted = 0;
+
+ status = SMB_VFS_GET_NT_ACL(conn, fname,
+ (OWNER_SECURITY_INFORMATION |
+ GROUP_SECURITY_INFORMATION |
+ DACL_SECURITY_INFORMATION),&sd);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("check_open_rights: Could not get acl "
+ "on %s: %s\n",
+ fname,
+ nt_errstr(status)));
+ return status;
+ }
+
+ status = smb1_file_se_access_check(sd,
+ conn->server_info->ptok,
+ access_mask,
+ access_granted);
+
+ TALLOC_FREE(sd);
+
+ DEBUG(10,("check_open_rights: file %s requesting "
+ "0x%x returning 0x%x (%s)\n",
+ fname,
+ (unsigned int)access_mask,
+ (unsigned int)*access_granted,
+ nt_errstr(status) ));
+
+ return status;
+}
+
/****************************************************************************
fd support routines - attempt to do a dos_open.
****************************************************************************/
NTSTATUS fd_close(files_struct *fsp)
{
+ int ret;
+
if (fsp->fh->fd == -1) {
return NT_STATUS_OK; /* What we used to call a stat open. */
}
if (fsp->fh->ref_count > 1) {
return NT_STATUS_OK; /* Shared handle. Only close last reference. */
}
- return fd_close_posix(fsp);
+
+ ret = SMB_VFS_CLOSE(fsp);
+ fsp->fh->fd = -1;
+ if (ret == -1) {
+ return map_nt_error_from_unix(errno);
+ }
+ return NT_STATUS_OK;
}
/****************************************************************************
if ((open_access_mask & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA|FILE_EXECUTE)) ||
(!file_existed && (local_flags & O_CREAT)) ||
((local_flags & O_TRUNC) == O_TRUNC) ) {
+ const char *wild;
/*
* We can't actually truncate here as the file may be locked.
#endif
/* Don't create files with Microsoft wildcard characters. */
+ if (fsp->base_fsp) {
+ /*
+ * wildcard characters are allowed in stream names
+ * only test the basefilename
+ */
+ wild = fsp->base_fsp->fsp_name;
+ } else {
+ wild = path;
+ }
if ((local_flags & O_CREAT) && !file_existed &&
- ms_has_wild(path)) {
+ ms_has_wild(wild)) {
return NT_STATUS_OBJECT_NAME_INVALID;
}
/* Inherit the ACL if required */
if (lp_inherit_perms(SNUM(conn))) {
- inherit_access_acl(conn, parent_dir, path,
+ inherit_access_posix_acl(conn, parent_dir, path,
unx_mode);
}
} else {
fsp->fh->fd = -1; /* What we used to call a stat open. */
+ if (file_existed) {
+ uint32_t access_granted = 0;
+
+ status = check_open_rights(conn,
+ path,
+ access_mask,
+ &access_granted);
+ if (!NT_STATUS_IS_OK(status)) {
+
+ /* Were we trying to do a stat open
+ * for delete and didn't get DELETE
+ * access (only) ? Check if the
+ * directory allows DELETE_CHILD.
+ * See here:
+ * http://blogs.msdn.com/oldnewthing/archive/2004/06/04/148426.aspx
+ * for details. */
+
+ if (!(NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED) &&
+ (access_mask & DELETE_ACCESS) &&
+ (access_granted == DELETE_ACCESS) &&
+ can_delete_file_in_directory(conn, path))) {
+ DEBUG(10, ("open_file: Access denied on "
+ "file %s\n",
+ path));
+ return status;
+ }
+
+ DEBUG(10,("open_file: overrode ACCESS_DENIED "
+ "on file %s\n",
+ path ));
+ }
+ }
}
if (!file_existed) {
fsp->modified = False;
fsp->sent_oplock_break = NO_BREAK_SENT;
fsp->is_directory = False;
- fsp->is_stat = False;
if (conn->aio_write_behind_list &&
is_in_path(path, conn->aio_write_behind_list, conn->case_sensitive)) {
fsp->aio_write_behind = True;
fsp->wcp = NULL; /* Write cache pointer. */
DEBUG(2,("%s opened file %s read=%s write=%s (numopen=%d)\n",
- *current_user_info.smb_name ?
- current_user_info.smb_name : conn->user,fsp->fsp_name,
+ conn->server_info->unix_name,
+ fsp->fsp_name,
BOOLSTR(fsp->can_read), BOOLSTR(fsp->can_write),
- conn->num_files_open + 1));
+ conn->num_files_open));
errno = 0;
return NT_STATUS_OK;
(fsp->oplock_type == NO_OPLOCK));
}
+/*
+ * Send a break message to the oplock holder and delay the open for
+ * our client.
+ */
+
+static NTSTATUS send_break_message(files_struct *fsp,
+ struct share_mode_entry *exclusive,
+ uint16 mid,
+ int oplock_request)
+{
+ NTSTATUS status;
+ char msg[MSG_SMB_SHARE_MODE_ENTRY_SIZE];
+
+ DEBUG(10, ("Sending break request to PID %s\n",
+ procid_str_static(&exclusive->pid)));
+ exclusive->op_mid = mid;
+
+ /* Create the message. */
+ share_mode_entry_to_message(msg, exclusive);
+
+ /* Add in the FORCE_OPLOCK_BREAK_TO_NONE bit in the message if set. We
+ don't want this set in the share mode struct pointed to by lck. */
+
+ if (oplock_request & FORCE_OPLOCK_BREAK_TO_NONE) {
+ SSVAL(msg,6,exclusive->op_type | FORCE_OPLOCK_BREAK_TO_NONE);
+ }
+
+ status = messaging_send_buf(smbd_messaging_context(), exclusive->pid,
+ MSG_SMB_BREAK_REQUEST,
+ (uint8 *)msg,
+ MSG_SMB_SHARE_MODE_ENTRY_SIZE);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("Could not send oplock break message: %s\n",
+ nt_errstr(status)));
+ }
+
+ return status;
+}
+
/*
* 1) No files open at all or internal open: Grant whatever the client wants.
*
* 2) Exclusive (or batch) oplock around: If the requested access is a delete
* request, break if the oplock around is a batch oplock. If it's another
* requested access type, break.
- *
+ *
* 3) Only level2 around: Grant level2 and do nothing else.
*/
int pass_number,
int oplock_request)
{
+ extern uint32 global_client_caps;
int i;
struct share_mode_entry *exclusive = NULL;
- bool valid_entry = False;
- bool delay_it = False;
- bool have_level2 = False;
- NTSTATUS status;
- char msg[MSG_SMB_SHARE_MODE_ENTRY_SIZE];
+ bool valid_entry = false;
+ bool have_level2 = false;
+ bool have_a_none_oplock = false;
+ bool allow_level2 = (global_client_caps & CAP_LEVEL_II_OPLOCKS) &&
+ lp_level2_oplocks(SNUM(fsp->conn));
if (oplock_request & INTERNAL_OPEN_ONLY) {
fsp->oplock_type = NO_OPLOCK;
}
if ((oplock_request & INTERNAL_OPEN_ONLY) || is_stat_open(fsp->access_mask)) {
- return False;
+ return false;
}
for (i=0; i<lck->num_share_modes; i++) {
}
/* At least one entry is not an invalid or deferred entry. */
- valid_entry = True;
+ valid_entry = true;
if (pass_number == 1) {
if (BATCH_OPLOCK_TYPE(lck->share_modes[i].op_type)) {
- SMB_ASSERT(exclusive == NULL);
+ SMB_ASSERT(exclusive == NULL);
exclusive = &lck->share_modes[i];
}
} else {
if (EXCLUSIVE_OPLOCK_TYPE(lck->share_modes[i].op_type)) {
- SMB_ASSERT(exclusive == NULL);
+ SMB_ASSERT(exclusive == NULL);
exclusive = &lck->share_modes[i];
}
}
- if (lck->share_modes[i].op_type == LEVEL_II_OPLOCK) {
- SMB_ASSERT(exclusive == NULL);
- have_level2 = True;
+ if (LEVEL_II_OPLOCK_TYPE(lck->share_modes[i].op_type)) {
+ SMB_ASSERT(exclusive == NULL);
+ have_level2 = true;
}
- }
- if (!valid_entry) {
- /* All entries are placeholders or deferred.
- * Directly grant whatever the client wants. */
- if (fsp->oplock_type == NO_OPLOCK) {
- /* Store a level2 oplock, but don't tell the client */
- fsp->oplock_type = FAKE_LEVEL_II_OPLOCK;
+ if (lck->share_modes[i].op_type == NO_OPLOCK) {
+ have_a_none_oplock = true;
}
- return False;
}
if (exclusive != NULL) { /* Found an exclusive oplock */
+ bool delay_it = is_delete_request(fsp) ?
+ BATCH_OPLOCK_TYPE(exclusive->op_type) : true;
SMB_ASSERT(!have_level2);
- delay_it = is_delete_request(fsp) ?
- BATCH_OPLOCK_TYPE(exclusive->op_type) : True;
- }
-
- if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
- /* We can at most grant level2 as there are other
- * level2 or NO_OPLOCK entries. */
- fsp->oplock_type = LEVEL_II_OPLOCK;
+ if (delay_it) {
+ send_break_message(fsp, exclusive, mid, oplock_request);
+ return true;
+ }
}
- 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;
- }
+ /*
+ * Match what was requested (fsp->oplock_type) with
+ * what was found in the existing share modes.
+ */
- if (!delay_it) {
- return False;
+ if (!valid_entry) {
+ /* All entries are placeholders or deferred.
+ * Directly grant whatever the client wants. */
+ if (fsp->oplock_type == NO_OPLOCK) {
+ /* Store a level2 oplock, but don't tell the client */
+ fsp->oplock_type = FAKE_LEVEL_II_OPLOCK;
+ }
+ } else if (have_a_none_oplock) {
+ fsp->oplock_type = NO_OPLOCK;
+ } else if (have_level2) {
+ if (fsp->oplock_type == NO_OPLOCK ||
+ fsp->oplock_type == FAKE_LEVEL_II_OPLOCK) {
+ /* Store a level2 oplock, but don't tell the client */
+ fsp->oplock_type = FAKE_LEVEL_II_OPLOCK;
+ } else {
+ fsp->oplock_type = LEVEL_II_OPLOCK;
+ }
+ } else {
+ /* This case can never happen. */
+ SMB_ASSERT(1);
}
/*
- * Send a break message to the oplock holder and delay the open for
- * our client.
+ * Don't grant level2 to clients that don't want them
+ * or if we've turned them off.
*/
-
- DEBUG(10, ("Sending break request to PID %s\n",
- procid_str_static(&exclusive->pid)));
- exclusive->op_mid = mid;
-
- /* Create the message. */
- share_mode_entry_to_message(msg, exclusive);
-
- /* Add in the FORCE_OPLOCK_BREAK_TO_NONE bit in the message if set. We
- don't want this set in the share mode struct pointed to by lck. */
-
- if (oplock_request & FORCE_OPLOCK_BREAK_TO_NONE) {
- SSVAL(msg,6,exclusive->op_type | FORCE_OPLOCK_BREAK_TO_NONE);
+ if (fsp->oplock_type == LEVEL_II_OPLOCK && !allow_level2) {
+ fsp->oplock_type = FAKE_LEVEL_II_OPLOCK;
}
- status = messaging_send_buf(smbd_messaging_context(), exclusive->pid,
- MSG_SMB_BREAK_REQUEST,
- (uint8 *)msg,
- MSG_SMB_SHARE_MODE_ENTRY_SIZE);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(3, ("Could not send oplock break message: %s\n",
- nt_errstr(status)));
- }
+ DEBUG(10,("delay_for_oplocks: oplock type 0x%x on file %s\n",
+ fsp->oplock_type, fsp->fsp_name));
- return True;
+ /* No delay. */
+ return false;
}
static bool request_timed_out(struct timeval request_time,
Try and find a duplicated file handle.
****************************************************************************/
-static files_struct *fcb_or_dos_open(connection_struct *conn,
+static NTSTATUS fcb_or_dos_open(connection_struct *conn,
+ files_struct *fsp_to_dup_into,
const char *fname,
struct file_id id,
uint16 file_pid,
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 ));
}
if (!fsp) {
- return NULL;
+ return NT_STATUS_NOT_FOUND;
}
/* 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;
+ return NT_STATUS_INVALID_PARAMETER;
}
/* We need to duplicate this fsp. */
- if (!NT_STATUS_IS_OK(dup_file_fsp(fsp, access_mask, share_access,
- create_options, &dup_fsp))) {
- return NULL;
- }
+ dup_file_fsp(fsp, access_mask, share_access,
+ create_options, fsp_to_dup_into);
- return dup_fsp;
+ return NT_STATUS_OK;
}
/****************************************************************************
uint32 access_mask;
uint32 share_mode;
uint32 create_disposition;
- uint32 create_options = 0;
+ uint32 create_options = FILE_NON_DIRECTORY_FILE;
DEBUG(10,("map_open_params_to_ntcreate: fname = %s, deny_mode = 0x%x, "
"open_func = 0x%x\n",
}
/****************************************************************************
- Open a file with a share mode.
+ Work out what access_mask to use from what the client sent us.
****************************************************************************/
-NTSTATUS open_file_ntcreate(connection_struct *conn,
+static NTSTATUS calculate_access_mask(connection_struct *conn,
+ const char *fname,
+ bool file_existed,
+ uint32_t access_mask,
+ uint32_t *access_mask_out)
+{
+ NTSTATUS status;
+
+ /*
+ * Convert GENERIC bits to specific bits.
+ */
+
+ se_map_generic(&access_mask, &file_generic_mapping);
+
+ /* Calculate MAXIMUM_ALLOWED_ACCESS if requested. */
+ if (access_mask & MAXIMUM_ALLOWED_ACCESS) {
+ if (file_existed) {
+
+ struct security_descriptor *sd;
+ uint32_t access_granted = 0;
+
+ status = SMB_VFS_GET_NT_ACL(conn, fname,
+ (OWNER_SECURITY_INFORMATION |
+ GROUP_SECURITY_INFORMATION |
+ DACL_SECURITY_INFORMATION),&sd);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("calculate_access_mask: Could not get acl "
+ "on file %s: %s\n",
+ fname,
+ nt_errstr(status)));
+ return NT_STATUS_ACCESS_DENIED;
+ }
+
+ status = smb1_file_se_access_check(sd,
+ conn->server_info->ptok,
+ access_mask,
+ &access_granted);
+
+ TALLOC_FREE(sd);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("calculate_access_mask: Access denied on "
+ "file %s: when calculating maximum access\n",
+ fname));
+ return NT_STATUS_ACCESS_DENIED;
+ }
+
+ access_mask = access_granted;
+ } else {
+ access_mask = FILE_GENERIC_ALL;
+ }
+ }
+
+ *access_mask_out = access_mask;
+ return NT_STATUS_OK;
+}
+
+/****************************************************************************
+ Open a file with a share mode. Passed in an already created files_struct *.
+****************************************************************************/
+
+static NTSTATUS open_file_ntcreate_internal(connection_struct *conn,
struct smb_request *req,
const char *fname,
SMB_STRUCT_STAT *psbuf,
int oplock_request, /* internal Samba oplock codes. */
/* Information (FILE_EXISTS etc.) */
int *pinfo,
- files_struct **result)
+ files_struct *fsp)
{
int flags=0;
int flags2=0;
bool new_file_created = False;
struct file_id id;
NTSTATUS fsp_open = NT_STATUS_ACCESS_DENIED;
- files_struct *fsp = NULL;
mode_t new_unx_mode = (mode_t)0;
mode_t unx_mode = (mode_t)0;
int info;
ZERO_STRUCT(id);
if (conn->printer) {
- /*
+ /*
* Printers are handled completely differently.
* Most of the passed parameters are ignored.
*/
DEBUG(10, ("open_file_ntcreate: printer open fname=%s\n", fname));
- return print_fsp_open(conn, fname, result);
+ return print_fsp_open(conn, fname, req->vuid, fsp, psbuf);
}
if (!parent_dirname_talloc(talloc_tos(), fname, &parent_dir,
request_time = pml->request_time;
/* Remove the deferred open entry under lock. */
- lck = get_share_mode_lock(talloc_tos(), state->id, NULL, NULL);
+ lck = get_share_mode_lock(talloc_tos(), state->id, NULL, NULL,
+ NULL);
if (lck == NULL) {
DEBUG(0, ("could not get share mode lock\n"));
} else {
}
}
- /* This is a nasty hack - must fix... JRA. */
- if (access_mask == MAXIMUM_ALLOWED_ACCESS) {
- open_access_mask = access_mask = FILE_GENERIC_ALL;
+ status = calculate_access_mask(conn, fname, file_existed,
+ access_mask,
+ &access_mask);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("open_file_ntcreate: calculate_access_mask "
+ "on file %s returned %s\n",
+ fname,
+ nt_errstr(status)));
+ return status;
}
- /*
- * Convert GENERIC bits to specific bits.
- */
-
- se_map_generic(&access_mask, &file_generic_mapping);
open_access_mask = access_mask;
- if (flags2 & O_TRUNC) {
+ if ((flags2 & O_TRUNC) || (oplock_request & FORCE_OPLOCK_BREAK_TO_NONE)) {
open_access_mask |= FILE_WRITE_DATA; /* This will cause oplock breaks. */
}
* mean the same thing under DOS and Unix.
*/
- if (access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) {
+ if ((access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) ||
+ (oplock_request & FORCE_OPLOCK_BREAK_TO_NONE)) {
/* DENY_DOS opens are always underlying read-write on the
file handle, no matter what the requested access mask
says. */
return NT_STATUS_ACCESS_DENIED;
}
- status = file_new(conn, &fsp);
- if(!NT_STATUS_IS_OK(status)) {
- return status;
- }
-
fsp->file_id = vfs_file_id_from_sbuf(conn, psbuf);
fsp->share_access = share_access;
fsp->fh->private_options = create_options;
}
if (file_existed) {
+ struct timespec old_write_time = get_mtimespec(psbuf);
id = vfs_file_id_from_sbuf(conn, psbuf);
lck = get_share_mode_lock(talloc_tos(), id,
conn->connectpath,
- fname);
+ fname, &old_write_time);
if (lck == NULL) {
- file_free(fsp);
DEBUG(0, ("Could not get share mode lock\n"));
return NT_STATUS_SHARING_VIOLATION;
}
oplock_request)) {
schedule_defer_open(lck, request_time, req);
TALLOC_FREE(lck);
- file_free(fsp);
return NT_STATUS_SHARING_VIOLATION;
}
oplock_request)) {
schedule_defer_open(lck, request_time, req);
TALLOC_FREE(lck);
- file_free(fsp);
return NT_STATUS_SHARING_VIOLATION;
}
}
if (NT_STATUS_EQUAL(status, NT_STATUS_DELETE_PENDING)) {
/* DELETE_PENDING is not deferred for a second */
TALLOC_FREE(lck);
- file_free(fsp);
return status;
}
if (create_options &
(NTCREATEX_OPTIONS_PRIVATE_DENY_DOS|
NTCREATEX_OPTIONS_PRIVATE_DENY_FCB)) {
- files_struct *fsp_dup;
-
if (req == NULL) {
DEBUG(0, ("DOS open without an SMB "
"request!\n"));
TALLOC_FREE(lck);
- file_free(fsp);
return NT_STATUS_INTERNAL_ERROR;
}
/* Use the client requested access mask here,
* not the one we open with. */
- fsp_dup = fcb_or_dos_open(conn, fname, id,
+ status = fcb_or_dos_open(conn,
+ fsp,
+ fname,
+ id,
req->smbpid,
req->vuid,
access_mask,
share_access,
create_options);
- if (fsp_dup) {
+ if (NT_STATUS_IS_OK(status)) {
TALLOC_FREE(lck);
- file_free(fsp);
if (pinfo) {
*pinfo = FILE_WAS_OPENED;
}
- conn->num_files_open++;
- *result = fsp_dup;
return NT_STATUS_OK;
}
}
}
if (((can_access_mask & FILE_WRITE_DATA) && !CAN_WRITE(conn)) ||
- !can_access_file(conn,fname,psbuf,can_access_mask)) {
+ !can_access_file_data(conn,fname,psbuf,can_access_mask)) {
can_access = False;
}
} else {
status = NT_STATUS_ACCESS_DENIED;
}
- file_free(fsp);
return status;
}
if (lck != NULL) {
TALLOC_FREE(lck);
}
- file_free(fsp);
return fsp_open;
}
if (!file_existed) {
-
+ struct timespec old_write_time = get_mtimespec(psbuf);
/*
* Deal with the race condition where two smbd's detect the
* file doesn't exist and do the create at the same time. One
lck = get_share_mode_lock(talloc_tos(), id,
conn->connectpath,
- fname);
+ fname, &old_write_time);
if (lck == NULL) {
DEBUG(0, ("open_file_ntcreate: Could not get share "
"mode lock for %s\n", fname));
fd_close(fsp);
- file_free(fsp);
return NT_STATUS_SHARING_VIOLATION;
}
schedule_defer_open(lck, request_time, req);
TALLOC_FREE(lck);
fd_close(fsp);
- file_free(fsp);
return NT_STATUS_SHARING_VIOLATION;
}
schedule_defer_open(lck, request_time, req);
TALLOC_FREE(lck);
fd_close(fsp);
- file_free(fsp);
return NT_STATUS_SHARING_VIOLATION;
}
}
struct deferred_open_record state;
fd_close(fsp);
- file_free(fsp);
state.delayed_for_oplocks = False;
state.id = id;
TALLOC_FREE(lck);
fd_close(fsp);
- file_free(fsp);
return NT_STATUS_SHARING_VIOLATION;
}
status = map_nt_error_from_unix(errno);
TALLOC_FREE(lck);
fd_close(fsp);
- file_free(fsp);
return status;
}
}
/* Record the options we were opened with. */
fsp->share_access = share_access;
fsp->fh->private_options = create_options;
- fsp->access_mask = access_mask;
+ /*
+ * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
+ */
+ fsp->access_mask = access_mask | FILE_READ_ATTRIBUTES;
if (file_existed) {
/* stat opens on existing files don't get oplocks. */
* file structs.
*/
- 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;
- }
+ if (!set_file_oplock(fsp, fsp->oplock_type)) {
+ /* Could not get the kernel oplock */
+ fsp->oplock_type = NO_OPLOCK;
}
if (info == FILE_WAS_OVERWRITTEN || info == FILE_WAS_CREATED || info == FILE_WAS_SUPERSEDED) {
new_file_created = True;
}
- set_share_mode(lck, fsp, current_user.ut.uid, 0, fsp->oplock_type, new_file_created);
+ set_share_mode(lck, fsp, conn->server_info->utok.uid, 0,
+ fsp->oplock_type);
/* Handle strange delete on close create semantics. */
- if ((create_options & FILE_DELETE_ON_CLOSE)
- && (is_ntfs_stream_name(fname)
- || can_set_initial_delete_on_close(lck))) {
+ if (create_options & FILE_DELETE_ON_CLOSE) {
+
status = can_set_delete_on_close(fsp, True, new_dos_attributes);
if (!NT_STATUS_IS_OK(status)) {
del_share_mode(lck, fsp);
TALLOC_FREE(lck);
fd_close(fsp);
- file_free(fsp);
return status;
}
/* Note that here we set the *inital* delete on close flag,
}
TALLOC_FREE(lck);
- conn->num_files_open++;
+ return NT_STATUS_OK;
+}
+
+/****************************************************************************
+ Open a file with a share mode.
+****************************************************************************/
+
+NTSTATUS open_file_ntcreate(connection_struct *conn,
+ struct smb_request *req,
+ const char *fname,
+ SMB_STRUCT_STAT *psbuf,
+ uint32 access_mask, /* access bits (FILE_READ_DATA etc.) */
+ uint32 share_access, /* share constants (FILE_SHARE_READ etc) */
+ uint32 create_disposition, /* FILE_OPEN_IF etc. */
+ uint32 create_options, /* options such as delete on close. */
+ uint32 new_dos_attributes, /* attributes used for new file. */
+ int oplock_request, /* internal Samba oplock codes. */
+ /* Information (FILE_EXISTS etc.) */
+ int *pinfo,
+ files_struct **result)
+{
+ NTSTATUS status;
+ files_struct *fsp = NULL;
+
+ *result = NULL;
+
+ status = file_new(conn, &fsp);
+ if(!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ status = open_file_ntcreate_internal(conn,
+ req,
+ fname,
+ psbuf,
+ access_mask,
+ share_access,
+ create_disposition,
+ create_options,
+ new_dos_attributes,
+ oplock_request,
+ pinfo,
+ fsp);
+
+ if(!NT_STATUS_IS_OK(status)) {
+ file_free(fsp);
+ return status;
+ }
*result = fsp;
- return NT_STATUS_OK;
+ return status;
}
/****************************************************************************
status = open_file(fsp, conn, NULL, NULL, NULL, fname, psbuf, O_WRONLY,
0, FILE_WRITE_DATA, FILE_WRITE_DATA);
- /*
+ /*
* This is not a user visible file open.
- * Don't set a share mode and don't increment
- * the conn->num_files_open.
+ * Don't set a share mode.
*/
if (!NT_STATUS_IS_OK(status)) {
}
if (lp_inherit_perms(SNUM(conn))) {
- inherit_access_acl(conn, parent_dir, name, mode);
+ inherit_access_posix_acl(conn, parent_dir, name, mode);
}
if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS)) {
bool dir_existed = VALID_STAT(*psbuf) ? True : False;
struct share_mode_lock *lck = NULL;
NTSTATUS status;
+ struct timespec mtimespec;
int info = 0;
DEBUG(5,("open_directory: opening directory %s, access_mask = 0x%x, "
(unsigned int)create_disposition,
(unsigned int)file_attributes));
- if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS) && is_ntfs_stream_name(fname)) {
+ if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS) &&
+ (conn->fs_capabilities & FILE_NAMED_STREAMS) &&
+ is_ntfs_stream_name(fname)) {
DEBUG(2, ("open_directory: %s is a stream name!\n", fname));
return NT_STATUS_NOT_A_DIRECTORY;
}
+ status = calculate_access_mask(conn, fname, dir_existed,
+ access_mask,
+ &access_mask);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("open_directory: calculate_access_mask "
+ "on file %s returned %s\n",
+ fname,
+ nt_errstr(status)));
+ return status;
+ }
+
switch( create_disposition ) {
case FILE_OPEN:
return NT_STATUS_NOT_A_DIRECTORY;
}
+ if (info == FILE_WAS_OPENED) {
+ uint32_t access_granted = 0;
+ status = check_open_rights(conn,
+ fname,
+ access_mask,
+ &access_granted);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("open_directory: check_open_rights on "
+ "file %s failed with %s\n",
+ fname,
+ nt_errstr(status)));
+ return status;
+ }
+ }
+
status = file_new(conn, &fsp);
if(!NT_STATUS_IS_OK(status)) {
return status;
fsp->share_access = share_access;
fsp->fh->private_options = create_options;
- fsp->access_mask = access_mask;
-
+ /*
+ * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
+ */
+ fsp->access_mask = access_mask | FILE_READ_ATTRIBUTES;
fsp->print_file = False;
fsp->modified = False;
fsp->oplock_type = NO_OPLOCK;
fsp->sent_oplock_break = NO_BREAK_SENT;
fsp->is_directory = True;
- fsp->is_stat = False;
fsp->posix_open = (file_attributes & FILE_FLAG_POSIX_SEMANTICS) ? True : False;
string_set(&fsp->fsp_name,fname);
+ mtimespec = get_mtimespec(psbuf);
+
lck = get_share_mode_lock(talloc_tos(), fsp->file_id,
conn->connectpath,
- fname);
+ fname, &mtimespec);
if (lck == NULL) {
DEBUG(0, ("open_directory: Could not get share mode lock for %s\n", fname));
return status;
}
- set_share_mode(lck, fsp, current_user.ut.uid, 0, NO_OPLOCK, True);
+ set_share_mode(lck, fsp, conn->server_info->utok.uid, 0, NO_OPLOCK);
/* For directories the delete on close bit at open time seems
always to be honored on close... See test 19 in Samba4 BASE-DELETE. */
*pinfo = info;
}
- conn->num_files_open++;
-
*result = fsp;
return NT_STATUS_OK;
}
return status;
}
-/****************************************************************************
- Open a pseudo-file (no locking checks - a 'stat' open).
-****************************************************************************/
-
-NTSTATUS open_file_stat(connection_struct *conn, struct smb_request *req,
- const char *fname, SMB_STRUCT_STAT *psbuf,
- files_struct **result)
-{
- files_struct *fsp = NULL;
- NTSTATUS status;
-
- if (!VALID_STAT(*psbuf)) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- /* Can't 'stat' open directories. */
- if(S_ISDIR(psbuf->st_mode)) {
- return NT_STATUS_FILE_IS_A_DIRECTORY;
- }
-
- status = file_new(conn, &fsp);
- if(!NT_STATUS_IS_OK(status)) {
- return status;
- }
-
- DEBUG(5,("open_file_stat: 'opening' file %s\n", fname));
-
- /*
- * Setup the files_struct for it.
- */
-
- fsp->mode = psbuf->st_mode;
- fsp->file_id = vfs_file_id_from_sbuf(conn, psbuf);
- fsp->vuid = req ? req->vuid : UID_FIELD_INVALID;
- fsp->file_pid = req ? req->smbpid : 0;
- 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);
-
- conn->num_files_open++;
-
- *result = fsp;
- return NT_STATUS_OK;
-}
-
/****************************************************************************
Receive notification that one of our open files has been renamed by another
smbd process.
goto fail;
}
+ if (create_options & NTCREATEX_OPTIONS_INVALID_PARAM_MASK) {
+ status = NT_STATUS_INVALID_PARAMETER;
+ goto fail;
+ }
+
if (req == NULL) {
oplock_request |= INTERNAL_OPEN_ONLY;
}
&& (create_disposition != FILE_CREATE)
&& (share_access & FILE_SHARE_DELETE)
&& (access_mask & DELETE_ACCESS)
- && (((dos_mode(conn, fname, &sbuf) & FILE_ATTRIBUTE_READONLY)
- && !lp_delete_readonly(SNUM(conn)))
- || !can_delete_file_in_directory(conn, fname))) {
+ && (!(can_delete_file_in_directory(conn, fname) ||
+ can_access_file_acl(conn, fname, DELETE_ACCESS)))) {
status = NT_STATUS_ACCESS_DENIED;
+ DEBUG(10,("create_file_unixpath: open file %s "
+ "for delete ACCESS_DENIED\n", fname ));
goto fail;
}
status = split_ntfs_stream_name(talloc_tos(), fname,
&base, NULL);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(10, ("split_ntfs_stream_name failed: %s\n",
- nt_errstr(status)));
+ DEBUG(10, ("create_file_unixpath: "
+ "split_ntfs_stream_name failed: %s\n",
+ nt_errstr(status)));
goto fail;
}
"%s\n", base, nt_errstr(status)));
goto fail;
}
+ /* we don't need to low level fd */
+ fd_close(base_fsp);
}
/*
* Ordinary file case.
*/
- status = open_file_ntcreate(
- conn, req, fname, &sbuf, access_mask, share_access,
- create_disposition, create_options, file_attributes,
- oplock_request, &info, &fsp);
+ if (base_fsp) {
+ /*
+ * We're opening the stream element of a base_fsp
+ * we already opened. We need to initialize
+ * the fsp first, and set up the base_fsp pointer.
+ */
+ status = file_new(conn, &fsp);
+ if(!NT_STATUS_IS_OK(status)) {
+ goto fail;
+ }
+
+ fsp->base_fsp = base_fsp;
+
+ status = open_file_ntcreate_internal(conn,
+ req,
+ fname,
+ &sbuf,
+ access_mask,
+ share_access,
+ create_disposition,
+ create_options,
+ file_attributes,
+ oplock_request,
+ &info,
+ fsp);
+
+ if(!NT_STATUS_IS_OK(status)) {
+ file_free(fsp);
+ fsp = NULL;
+ }
+ } else {
+ status = open_file_ntcreate(
+ conn, req, fname, &sbuf, access_mask, share_access,
+ create_disposition, create_options, file_attributes,
+ oplock_request, &info, &fsp);
+ }
if (NT_STATUS_EQUAL(status, NT_STATUS_FILE_IS_A_DIRECTORY)) {
+ /* A stream open never opens a directory */
+
+ if (base_fsp) {
+ status = NT_STATUS_FILE_IS_A_DIRECTORY;
+ goto fail;
+ }
+
/*
* Fail the open if it was explicitly a non-directory
* file.
goto fail;
}
+ fsp->base_fsp = base_fsp;
+
/*
* According to the MS documentation, the only time the security
* descriptor is applied to the opened file is iff we *created* the
fsp->access_mask = FILE_GENERIC_ALL;
- status = SMB_VFS_FSET_NT_ACL(fsp, sec_info_sent, sd);
+ /* Convert all the generic bits. */
+ security_acl_map_generic(sd->dacl, &file_generic_mapping);
+ security_acl_map_generic(sd->sacl, &file_generic_mapping);
+
+ if (sec_info_sent & (OWNER_SECURITY_INFORMATION|
+ GROUP_SECURITY_INFORMATION|
+ DACL_SECURITY_INFORMATION|
+ SACL_SECURITY_INFORMATION)) {
+ status = SMB_VFS_FSET_NT_ACL(fsp, sec_info_sent, sd);
+ }
fsp->access_mask = saved_access_mask;
}
}
- DEBUG(10, ("create_file: info=%d\n", info));
-
- /*
- * Set fsp->base_fsp late enough that we can't "goto fail" anymore. In
- * the fail: branch we call close_file(fsp, ERROR_CLOSE) which would
- * also close fsp->base_fsp which we have to also do explicitly in
- * this routine here, as not in all "goto fail:" we have the fsp set
- * up already to be initialized with the base_fsp.
- */
-
- fsp->base_fsp = base_fsp;
+ DEBUG(10, ("create_file_unixpath: info=%d\n", info));
*result = fsp;
if (pinfo != NULL) {
return NT_STATUS_OK;
fail:
- DEBUG(10, ("create_file: %s\n", nt_errstr(status)));
+ DEBUG(10, ("create_file_unixpath: %s\n", nt_errstr(status)));
if (fsp != NULL) {
+ if (base_fsp && fsp->base_fsp == base_fsp) {
+ /*
+ * The close_file below will close
+ * fsp->base_fsp.
+ */
+ base_fsp = NULL;
+ }
close_file(fsp, ERROR_CLOSE);
fsp = NULL;
}
* Check to see if this is a mac fork of some kind.
*/
- if (is_ntfs_stream_name(fname)) {
+ if ((conn->fs_capabilities & FILE_NAMED_STREAMS) &&
+ is_ntfs_stream_name(fname)) {
status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
goto fail;
}
* also tries a QUERY_FILE_INFO on the file and then
* close it
*/
- status = open_fake_file(conn, fake_file_type, fname,
+ status = open_fake_file(conn, req->vuid,
+ fake_file_type, fname,
access_mask, &fsp);
if (!NT_STATUS_IS_OK(status)) {
goto fail;
}
- SET_STAT_INVALID(sbuf);
-
+ ZERO_STRUCT(sbuf);
goto done;
}
+
+ if (!(conn->fs_capabilities & FILE_NAMED_STREAMS)) {
+ status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
+ goto fail;
+ }
}
if ((req != NULL) && (req->flags2 & FLAGS2_DFS_PATHNAMES)) {
fname = converted_fname;
}
+ TALLOC_FREE(case_state);
+
/* All file access must go through check_name() */
status = check_name(conn, fname);
git.samba.org / samba.git / blobdiff