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-rw-r--r--source3/smbd/connection.c9
-rw-r--r--source3/smbd/dmapi.c71
-rw-r--r--source3/smbd/dosmode.c44
-rw-r--r--source3/smbd/oplock_linux.c22
-rw-r--r--source3/smbd/posix_acls.c31
-rw-r--r--source3/smbd/reply.c19
-rw-r--r--source3/smbd/server.c67
-rw-r--r--source3/smbd/service.c84
-rw-r--r--source3/smbd/trans2.c23
9 files changed, 253 insertions, 117 deletions
diff --git a/source3/smbd/connection.c b/source3/smbd/connection.c
index 016c8adb1b..d7063c9989 100644
--- a/source3/smbd/connection.c
+++ b/source3/smbd/connection.c
@@ -118,6 +118,15 @@ int count_current_connections( const char *sharename, bool clear )
}
/****************************************************************************
+ Count the number of connections open across all shares.
+****************************************************************************/
+
+int count_all_current_connections(void)
+{
+ return count_current_connections(NULL, True /* clear stale entries */);
+}
+
+/****************************************************************************
Claim an entry in the connections database.
****************************************************************************/
diff --git a/source3/smbd/dmapi.c b/source3/smbd/dmapi.c
index 05e9138ea9..620baf199e 100644
--- a/source3/smbd/dmapi.c
+++ b/source3/smbd/dmapi.c
@@ -46,7 +46,7 @@ bool dmapi_have_session(void) { return False; }
#define DMAPI_SESSION_NAME "samba"
#define DMAPI_TRACE 10
-static dm_sessid_t dmapi_session = DM_NO_SESSION;
+static dm_sessid_t samba_dmapi_session = DM_NO_SESSION;
/* Initialise the DMAPI interface. Make sure that we only end up initialising
* once per process to avoid resource leaks across different DMAPI
@@ -75,7 +75,7 @@ static int init_dmapi_service(void)
bool dmapi_have_session(void)
{
- return dmapi_session != DM_NO_SESSION;
+ return samba_dmapi_session != DM_NO_SESSION;
}
static dm_sessid_t *realloc_session_list(dm_sessid_t * sessions, int count)
@@ -110,7 +110,7 @@ int dmapi_init_session(void)
*/
SMB_WARN(getuid() == 0, "dmapi_init_session must be called as root");
- dmapi_session = DM_NO_SESSION;
+ samba_dmapi_session = DM_NO_SESSION;
if (init_dmapi_service() < 0) {
return -1;
}
@@ -139,7 +139,7 @@ retry:
err = dm_query_session(sessions[i], sizeof(buf), buf, &buflen);
buf[sizeof(buf) - 1] = '\0';
if (err == 0 && strcmp(DMAPI_SESSION_NAME, buf) == 0) {
- dmapi_session = sessions[i];
+ samba_dmapi_session = sessions[i];
DEBUGADD(DMAPI_TRACE,
("attached to existing DMAPI session "
"named '%s'\n", buf));
@@ -150,16 +150,15 @@ retry:
TALLOC_FREE(sessions);
/* No session already defined. */
- if (dmapi_session == DM_NO_SESSION) {
- err = dm_create_session(DM_NO_SESSION,
- CONST_DISCARD(char *,
- DMAPI_SESSION_NAME),
- &dmapi_session);
+ if (samba_dmapi_session == DM_NO_SESSION) {
+ err = dm_create_session(DM_NO_SESSION,
+ CONST_DISCARD(char *, DMAPI_SESSION_NAME),
+ &samba_dmapi_session);
if (err < 0) {
DEBUGADD(DMAPI_TRACE,
("failed to create new DMAPI session: %s\n",
strerror(errno)));
- dmapi_session = DM_NO_SESSION;
+ samba_dmapi_session = DM_NO_SESSION;
return -1;
}
@@ -185,22 +184,22 @@ static int reattach_dmapi_session(void)
char buf[DM_SESSION_INFO_LEN];
size_t buflen;
- if (dmapi_session != DM_NO_SESSION ) {
+ if (samba_dmapi_session != DM_NO_SESSION ) {
become_root();
/* NOTE: On Linux, this call opens /dev/dmapi, costing us a
* file descriptor. Ideally, we would close this when we fork.
*/
if (init_dmapi_service() < 0) {
- dmapi_session = DM_NO_SESSION;
+ samba_dmapi_session = DM_NO_SESSION;
unbecome_root();
return -1;
}
- if (dm_query_session(dmapi_session, sizeof(buf),
+ if (dm_query_session(samba_dmapi_session, sizeof(buf),
buf, &buflen) < 0) {
/* Session is stale. Disable DMAPI. */
- dmapi_session = DM_NO_SESSION;
+ samba_dmapi_session = DM_NO_SESSION;
unbecome_root();
return -1;
}
@@ -214,33 +213,42 @@ static int reattach_dmapi_session(void)
return 0;
}
-uint32 dmapi_file_flags(const char * const path)
+/* If a DMAPI session has been initialised, then we need to make sure
+ * we are attached to it and have the correct privileges. This is
+ * necessary to be able to do DMAPI operations across a fork(2). If
+ * it fails, there is no likelihood of that failure being transient.
+ *
+ * Note that this use of the static attached flag relies on the fact
+ * that dmapi_file_flags() is never called prior to forking the
+ * per-client server process.
+ */
+const void * dmapi_get_current_session(void)
{
static int attached = 0;
+ if (dmapi_have_session() && !attached) {
+ attached++;
+ if (reattach_dmapi_session() < 0) {
+ return DM_NO_SESSION;
+ }
+ }
+ return &samba_dmapi_session;
+}
+uint32 dmapi_file_flags(const char * const path)
+{
+ dm_sessid_t dmapi_session;
int err;
dm_eventset_t events = {0};
uint nevents;
- void *dm_handle;
- size_t dm_handle_len;
+ void *dm_handle = NULL;
+ size_t dm_handle_len = 0;
uint32 flags = 0;
- /* If a DMAPI session has been initialised, then we need to make sure
- * we are attached to it and have the correct privileges. This is
- * necessary to be able to do DMAPI operations across a fork(2). If
- * it fails, there is no liklihood of that failure being transient.
- *
- * Note that this use of the static attached flag relies on the fact
- * that dmapi_file_flags() is never called prior to forking the
- * per-client server process.
- */
- if (dmapi_have_session() && !attached) {
- attached++;
- if (reattach_dmapi_session() < 0) {
- return 0;
- }
+ dmapi_session = *(dm_sessid_t*) dmapi_get_current_session();
+ if (dmapi_session == DM_NO_SESSION) {
+ return 0;
}
/* AIX has DMAPI but no POSIX capablities support. In this case,
@@ -313,4 +321,5 @@ done:
return flags;
}
+
#endif /* USE_DMAPI */
diff --git a/source3/smbd/dosmode.c b/source3/smbd/dosmode.c
index d3813f9b41..2021621dfa 100644
--- a/source3/smbd/dosmode.c
+++ b/source3/smbd/dosmode.c
@@ -31,23 +31,6 @@ static int set_sparse_flag(const SMB_STRUCT_STAT * const sbuf)
}
/****************************************************************************
- Work out whether this file is offline
-****************************************************************************/
-
-static uint32 set_offline_flag(connection_struct *conn, const char *const path)
-{
- if (ISDOT(path) || ISDOTDOT(path)) {
- return 0;
- }
-
- if (!lp_dmapi_support(SNUM(conn)) || !dmapi_have_session()) {
- return 0;
- }
-
- return dmapi_file_flags(path);
-}
-
-/****************************************************************************
Change a dos mode to a unix mode.
Base permission for files:
if creating file and inheriting (i.e. parent_dir != NULL)
@@ -366,6 +349,8 @@ uint32 dos_mode_msdfs(connection_struct *conn, const char *path,SMB_STRUCT_STAT
uint32 dos_mode(connection_struct *conn, const char *path,SMB_STRUCT_STAT *sbuf)
{
uint32 result = 0;
+ bool offline;
+ int ret;
DEBUG(8,("dos_mode: %s\n", path));
@@ -395,8 +380,10 @@ uint32 dos_mode(connection_struct *conn, const char *path,SMB_STRUCT_STAT *sbuf)
result |= dos_mode_from_sbuf(conn, path, sbuf);
}
- if (S_ISREG(sbuf->st_mode)) {
- result |= set_offline_flag(conn, path);
+
+ ret = SMB_VFS_IS_OFFLINE(conn, path, sbuf, &offline);
+ if (S_ISREG(sbuf->st_mode) && (ret == 0) && offline) {
+ result |= FILE_ATTRIBUTE_OFFLINE;
}
/* Optimization : Only call is_hidden_path if it's not already
@@ -432,7 +419,7 @@ int file_set_dosmode(connection_struct *conn, const char *fname,
int mask=0;
mode_t tmp;
mode_t unixmode;
- int ret = -1;
+ int ret = -1, lret = -1;
/* We only allow READONLY|HIDDEN|SYSTEM|DIRECTORY|ARCHIVE here. */
dosmode &= SAMBA_ATTRIBUTES_MASK;
@@ -505,10 +492,21 @@ int file_set_dosmode(connection_struct *conn, const char *fname,
unixmode |= (st->st_mode & (S_IWUSR|S_IWGRP|S_IWOTH));
}
- if ((ret = SMB_VFS_CHMOD(conn,fname,unixmode)) == 0) {
- if (!newfile) {
+ if (dosmode & FILE_ATTRIBUTE_OFFLINE) {
+ lret = SMB_VFS_SET_OFFLINE(conn, fname);
+ if (lret == -1) {
+ DEBUG(0, ("set_dos_mode: client has asked to set "
+ "FILE_ATTRIBUTE_OFFLINE to %s/%s but there was "
+ "an error while setting it or it is not supported.\n",
+ parent_dir, fname));
+ }
+ }
+
+ ret = SMB_VFS_CHMOD(conn, fname, unixmode);
+ if (ret == 0) {
+ if(!newfile || (lret != -1)) {
notify_fname(conn, NOTIFY_ACTION_MODIFIED,
- FILE_NOTIFY_CHANGE_ATTRIBUTES, fname);
+ FILE_NOTIFY_CHANGE_ATTRIBUTES, fname);
}
st->st_mode = unixmode;
return 0;
diff --git a/source3/smbd/oplock_linux.c b/source3/smbd/oplock_linux.c
index 05021b6c74..fa7cb42bc6 100644
--- a/source3/smbd/oplock_linux.c
+++ b/source3/smbd/oplock_linux.c
@@ -93,17 +93,27 @@ static void set_capability(unsigned capability)
return;
}
- data.effective |= (1<<capability);
+ if (0 == (data.effective & (1<<capability))) {
+ data.effective |= (1<<capability);
- if (capset(&header, &data) == -1) {
- DEBUG(3,("Unable to set %d capability (%s)\n",
- capability, strerror(errno)));
+ if (capset(&header, &data) == -1) {
+ DEBUG(3,("Unable to set %d capability (%s)\n",
+ capability, strerror(errno)));
+ }
}
}
/*
- Call to set the kernel lease signal handler
-*/
+ * public function to get linux lease capability. Needed by some VFS modules (eg. gpfs.c)
+ */
+void linux_set_lease_capability(void)
+{
+ set_capability(CAP_LEASE);
+}
+
+/*
+ * Call to set the kernel lease signal handler
+ */
int linux_set_lease_sighandler(int fd)
{
if (fcntl(fd, F_SETSIG, RT_SIGNAL_LEASE) == -1) {
diff --git a/source3/smbd/posix_acls.c b/source3/smbd/posix_acls.c
index 5f18615f66..6cec39f9c0 100644
--- a/source3/smbd/posix_acls.c
+++ b/source3/smbd/posix_acls.c
@@ -3413,6 +3413,9 @@ NTSTATUS set_nt_acl(files_struct *fsp, uint32 security_info_sent, SEC_DESC *psd)
bool acl_perms = False;
mode_t orig_mode = (mode_t)0;
NTSTATUS status;
+ uid_t orig_uid;
+ gid_t orig_gid;
+ bool need_chown = False;
DEBUG(10,("set_nt_acl: called for file %s\n", fsp->fsp_name ));
@@ -3435,6 +3438,8 @@ NTSTATUS set_nt_acl(files_struct *fsp, uint32 security_info_sent, SEC_DESC *psd)
/* Save the original elements we check against. */
orig_mode = sbuf.st_mode;
+ orig_uid = sbuf.st_uid;
+ orig_gid = sbuf.st_gid;
/*
* Unpack the user/group/world id's.
@@ -3449,7 +3454,11 @@ NTSTATUS set_nt_acl(files_struct *fsp, uint32 security_info_sent, SEC_DESC *psd)
* Do we need to chown ?
*/
- if (((user != (uid_t)-1) && (sbuf.st_uid != user)) || (( grp != (gid_t)-1) && (sbuf.st_gid != grp))) {
+ if (((user != (uid_t)-1) && (orig_uid != user)) || (( grp != (gid_t)-1) && (orig_gid != grp))) {
+ need_chown = True;
+ }
+
+ if (need_chown && (user == (uid_t)-1 || user == current_user.ut.uid)) {
DEBUG(3,("set_nt_acl: chown %s. uid = %u, gid = %u.\n",
fsp->fsp_name, (unsigned int)user, (unsigned int)grp ));
@@ -3487,6 +3496,11 @@ NTSTATUS set_nt_acl(files_struct *fsp, uint32 security_info_sent, SEC_DESC *psd)
/* Save the original elements we check against. */
orig_mode = sbuf.st_mode;
+ orig_uid = sbuf.st_uid;
+ orig_gid = sbuf.st_gid;
+
+ /* We did chown already, drop the flag */
+ need_chown = False;
}
create_file_sids(&sbuf, &file_owner_sid, &file_grp_sid);
@@ -3630,6 +3644,21 @@ NTSTATUS set_nt_acl(files_struct *fsp, uint32 security_info_sent, SEC_DESC *psd)
free_canon_ace_list(dir_ace_list);
}
+ /* Any chown pending? */
+ if (need_chown) {
+ DEBUG(3,("set_nt_acl: chown %s. uid = %u, gid = %u.\n",
+ fsp->fsp_name, (unsigned int)user, (unsigned int)grp ));
+
+ if(try_chown( fsp->conn, fsp->fsp_name, user, grp) == -1) {
+ DEBUG(3,("set_nt_acl: chown %s, %u, %u failed. Error = %s.\n",
+ fsp->fsp_name, (unsigned int)user, (unsigned int)grp, strerror(errno) ));
+ if (errno == EPERM) {
+ return NT_STATUS_INVALID_OWNER;
+ }
+ return map_nt_error_from_unix(errno);
+ }
+ }
+
return NT_STATUS_OK;
}
diff --git a/source3/smbd/reply.c b/source3/smbd/reply.c
index e2316ef120..381ddfe151 100644
--- a/source3/smbd/reply.c
+++ b/source3/smbd/reply.c
@@ -3329,8 +3329,12 @@ void reply_read_and_X(struct smb_request *req)
return;
}
- if (!big_readX
- && schedule_aio_read_and_X(conn, req, fsp, startpos, smb_maxcnt)) {
+ /* It is possible for VFS modules to selectively decide whether Async I/O should be used
+ for the file or not.
+ */
+ if ((SMB_VFS_AIO_FORCE(fsp)) &&
+ !big_readX &&
+ schedule_aio_read_and_X(conn, req, fsp, startpos, smb_maxcnt)) {
END_PROFILE(SMBreadX);
return;
}
@@ -4001,13 +4005,16 @@ void reply_write_and_X(struct smb_request *req)
nwritten = 0;
} else {
- if (req->unread_bytes == 0 &&
- schedule_aio_write_and_X(conn, req, fsp, data,
- startpos, numtowrite)) {
+ /* It is possible for VFS modules to selectively decide whether Async I/O
+ should be used for the file or not.
+ */
+ if ((SMB_VFS_AIO_FORCE(fsp)) && (req->unread_bytes == 0) &&
+ schedule_aio_write_and_X(conn, req, fsp, data, startpos,
+ numtowrite)) {
END_PROFILE(SMBwriteX);
return;
}
-
+
nwritten = write_file(req,fsp,data,startpos,numtowrite);
}
diff --git a/source3/smbd/server.c b/source3/smbd/server.c
index 8371d17f10..db241103ed 100644
--- a/source3/smbd/server.c
+++ b/source3/smbd/server.c
@@ -268,10 +268,20 @@ static void add_child_pid(pid_t pid)
num_children += 1;
}
-static void remove_child_pid(pid_t pid)
+static void remove_child_pid(pid_t pid, bool unclean_shutdown)
{
struct child_pid *child;
+ if (unclean_shutdown) {
+ /* a child terminated uncleanly so tickle all processes to see
+ if they can grab any of the pending locks
+ */
+ messaging_send_buf(smbd_messaging_context(), procid_self(),
+ MSG_SMB_BRL_VALIDATE, NULL, 0);
+ message_send_all(smbd_messaging_context(),
+ MSG_SMB_UNLOCK, NULL, 0, NULL);
+ }
+
if (lp_max_smbd_processes() == 0) {
/* Don't bother with the child list if we don't care anyway */
return;
@@ -560,10 +570,27 @@ static bool open_sockets_smbd(bool is_daemon, bool interactive, const char *smb_
if (got_sig_cld) {
pid_t pid;
+ int status;
+
got_sig_cld = False;
- while ((pid = sys_waitpid(-1, NULL, WNOHANG)) > 0) {
- remove_child_pid(pid);
+ while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
+ bool unclean_shutdown = False;
+
+ /* If the child terminated normally, assume
+ it was an unclean shutdown unless the
+ status is 0
+ */
+ if (WIFEXITED(status)) {
+ unclean_shutdown = WEXITSTATUS(status);
+ }
+ /* If the child terminated due to a signal
+ we always assume it was unclean.
+ */
+ if (WIFSIGNALED(status)) {
+ unclean_shutdown = True;
+ }
+ remove_child_pid(pid, unclean_shutdown);
}
}
@@ -603,6 +630,15 @@ static bool open_sockets_smbd(bool is_daemon, bool interactive, const char *smb_
continue;
}
+
+
+ /* If the idle timeout fired and we don't have any connected
+ * users, exit gracefully. We should be running under a process
+ * controller that will restart us if necessry.
+ */
+ if (num == 0 && count_all_current_connections() == 0) {
+ exit_server_cleanly("idle timeout");
+ }
/* process pending nDNS responses */
if (dns_register_smbd_reply(dns_reg, &r_fds, &idle_timeout)) {
@@ -906,6 +942,29 @@ void exit_server_fault(void)
exit_server("critical server fault");
}
+
+/****************************************************************************
+received when we should release a specific IP
+****************************************************************************/
+static void msg_release_ip(struct messaging_context *msg_ctx, void *private_data,
+ uint32_t msg_type, struct server_id server_id, DATA_BLOB *data)
+{
+ const char *ip = (const char *)data->data;
+ char addr[INET6_ADDRSTRLEN];
+
+ if (strcmp(client_socket_addr(get_client_fd(),addr,sizeof(addr)), ip) == 0) {
+ /* we can't afford to do a clean exit - that involves
+ database writes, which would potentially mean we
+ are still running after the failover has finished -
+ we have to get rid of this process ID straight
+ away */
+ DEBUG(0,("Got release IP message for our IP %s - exiting immediately\n",
+ ip));
+ _exit(0);
+ }
+}
+
+
/****************************************************************************
Initialise connect, service and file structs.
****************************************************************************/
@@ -1305,6 +1364,8 @@ extern void build_options(bool screen);
/* register our message handlers */
messaging_register(smbd_messaging_context(), NULL,
MSG_SMB_FORCE_TDIS, msg_force_tdis);
+ messaging_register(smbd_messaging_context(), NULL,
+ MSG_SMB_RELEASE_IP, msg_release_ip);
if ((lp_keepalive() != 0)
&& !(event_add_idle(smbd_event_context(), NULL,
diff --git a/source3/smbd/service.c b/source3/smbd/service.c
index 2588a66b8b..ed8061e2f7 100644
--- a/source3/smbd/service.c
+++ b/source3/smbd/service.c
@@ -219,44 +219,6 @@ bool set_current_service(connection_struct *conn, uint16 flags, bool do_chdir)
return(True);
}
-/****************************************************************************
- Add a home service. Returns the new service number or -1 if fail.
-****************************************************************************/
-
-int add_home_service(const char *service, const char *username, const char *homedir)
-{
- int iHomeService;
-
- if (!service || !homedir)
- return -1;
-
- if ((iHomeService = lp_servicenumber(HOMES_NAME)) < 0)
- return -1;
-
- /*
- * If this is a winbindd provided username, remove
- * the domain component before adding the service.
- * Log a warning if the "path=" parameter does not
- * include any macros.
- */
-
- {
- const char *p = strchr(service,*lp_winbind_separator());
-
- /* We only want the 'user' part of the string */
- if (p) {
- service = p + 1;
- }
- }
-
- if (!lp_add_home(service, iHomeService, username, homedir)) {
- return -1;
- }
-
- return lp_servicenumber(service);
-
-}
-
static int load_registry_service(const char *servicename)
{
struct registry_key *key;
@@ -348,6 +310,47 @@ void load_registry_shares(void)
return;
}
+/****************************************************************************
+ Add a home service. Returns the new service number or -1 if fail.
+****************************************************************************/
+
+int add_home_service(const char *service, const char *username, const char *homedir)
+{
+ int iHomeService;
+
+ if (!service || !homedir)
+ return -1;
+
+ if ((iHomeService = lp_servicenumber(HOMES_NAME)) < 0) {
+ if ((iHomeService = load_registry_service(HOMES_NAME)) < 0) {
+ return -1;
+ }
+ }
+
+ /*
+ * If this is a winbindd provided username, remove
+ * the domain component before adding the service.
+ * Log a warning if the "path=" parameter does not
+ * include any macros.
+ */
+
+ {
+ const char *p = strchr(service,*lp_winbind_separator());
+
+ /* We only want the 'user' part of the string */
+ if (p) {
+ service = p + 1;
+ }
+ }
+
+ if (!lp_add_home(service, iHomeService, username, homedir)) {
+ return -1;
+ }
+
+ return lp_servicenumber(service);
+
+}
+
/**
* Find a service entry.
*
@@ -386,7 +389,10 @@ int find_service(fstring service)
if (iService < 0) {
int iPrinterService;
- if ((iPrinterService = lp_servicenumber(PRINTERS_NAME)) >= 0) {
+ if ((iPrinterService = lp_servicenumber(PRINTERS_NAME)) < 0) {
+ iPrinterService = load_registry_service(PRINTERS_NAME);
+ }
+ if (iPrinterService) {
DEBUG(3,("checking whether %s is a valid printer name...\n", service));
if (pcap_printername_ok(service)) {
DEBUG(3,("%s is a valid printer name\n", service));
diff --git a/source3/smbd/trans2.c b/source3/smbd/trans2.c
index bf6802f2a6..5729ab5349 100644
--- a/source3/smbd/trans2.c
+++ b/source3/smbd/trans2.c
@@ -2373,8 +2373,8 @@ static void call_trans2qfsinfo(connection_struct *conn,
const char *vname = volume_label(SNUM(conn));
int snum = SNUM(conn);
char *fstype = lp_fstype(SNUM(conn));
- int quota_flag = 0;
-
+ uint32 additional_flags = 0;
+
if (total_params < 2) {
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
@@ -2487,16 +2487,23 @@ cBytesSector=%u, cUnitTotal=%u, cUnitAvail=%d\n", (unsigned int)st.st_dev, (unsi
case SMB_QUERY_FS_ATTRIBUTE_INFO:
case SMB_FS_ATTRIBUTE_INFORMATION:
-
+ additional_flags = 0;
#if defined(HAVE_SYS_QUOTAS)
- quota_flag = FILE_VOLUME_QUOTAS;
+ additional_flags |= FILE_VOLUME_QUOTAS;
#endif
+ if(lp_nt_acl_support(SNUM(conn))) {
+ additional_flags |= FILE_PERSISTENT_ACLS;
+ }
+
+ if(SMB_VFS_IS_REMOTESTORAGE(conn, lp_pathname(SNUM(conn)))) {
+ additional_flags |= FILE_SUPPORTS_REMOTE_STORAGE;
+ additional_flags |= FILE_SUPPORTS_REPARSE_POINTS;
+ }
+
SIVAL(pdata,0,FILE_CASE_PRESERVED_NAMES|FILE_CASE_SENSITIVE_SEARCH|
- (lp_nt_acl_support(SNUM(conn)) ? FILE_PERSISTENT_ACLS : 0)|
- FILE_SUPPORTS_OBJECT_IDS|
- FILE_UNICODE_ON_DISK|
- quota_flag); /* FS ATTRIBUTES */
+ FILE_SUPPORTS_OBJECT_IDS|FILE_UNICODE_ON_DISK|
+ additional_flags); /* FS ATTRIBUTES */
SIVAL(pdata,4,255); /* Max filename component length */
/* NOTE! the fstype must *not* be null terminated or win98 won't recognise it