#include "includes.h"
extern struct generic_mapping file_generic_mapping;
extern struct current_user current_user;
extern userdom_struct current_user_info;
extern uint16 global_smbpid;
extern BOOL global_client_failed_oplock_break;
struct deferred_open_record {
BOOL delayed_for_oplocks;
SMB_DEV_T dev;
SMB_INO_T inode;
};
static NTSTATUS fd_open(struct connection_struct *conn,
const char *fname,
files_struct *fsp,
int flags,
mode_t mode)
{
NTSTATUS status = NT_STATUS_OK;
#ifdef O_NOFOLLOW
if (fsp->posix_open || !lp_symlinks(SNUM(conn))) {
flags |= O_NOFOLLOW;
}
#endif
fsp->fh->fd = SMB_VFS_OPEN(conn,fname,fsp,flags,mode);
if (fsp->fh->fd == -1) {
status = map_nt_error_from_unix(errno);
}
DEBUG(10,("fd_open: name %s, flags = 0%o mode = 0%o, fd = %d. %s\n",
fname, flags, (int)mode, fsp->fh->fd,
(fsp->fh->fd == -1) ? strerror(errno) : "" ));
return status;
}
NTSTATUS fd_close(struct connection_struct *conn, files_struct *fsp)
{
if (fsp->fh->fd == -1) {
return NT_STATUS_OK;
}
if (fsp->fh->ref_count > 1) {
return NT_STATUS_OK;
}
return fd_close_posix(conn, fsp);
}
static void change_file_owner_to_parent(connection_struct *conn,
const char *inherit_from_dir,
files_struct *fsp)
{
SMB_STRUCT_STAT parent_st;
int ret;
ret = SMB_VFS_STAT(conn, inherit_from_dir, &parent_st);
if (ret == -1) {
DEBUG(0,("change_file_owner_to_parent: failed to stat parent "
"directory %s. Error was %s\n",
inherit_from_dir, strerror(errno) ));
return;
}
become_root();
ret = SMB_VFS_FCHOWN(fsp, fsp->fh->fd, parent_st.st_uid, (gid_t)-1);
unbecome_root();
if (ret == -1) {
DEBUG(0,("change_file_owner_to_parent: failed to fchown "
"file %s to parent directory uid %u. Error "
"was %s\n", fsp->fsp_name,
(unsigned int)parent_st.st_uid,
strerror(errno) ));
}
DEBUG(10,("change_file_owner_to_parent: changed new file %s to "
"parent directory uid %u.\n", fsp->fsp_name,
(unsigned int)parent_st.st_uid ));
}
static void change_dir_owner_to_parent(connection_struct *conn,
const char *inherit_from_dir,
const char *fname,
SMB_STRUCT_STAT *psbuf)
{
pstring saved_dir;
SMB_STRUCT_STAT sbuf;
SMB_STRUCT_STAT parent_st;
int ret;
ret = SMB_VFS_STAT(conn, inherit_from_dir, &parent_st);
if (ret == -1) {
DEBUG(0,("change_dir_owner_to_parent: failed to stat parent "
"directory %s. Error was %s\n",
inherit_from_dir, strerror(errno) ));
return;
}
if (!vfs_GetWd(conn,saved_dir)) {
DEBUG(0,("change_dir_owner_to_parent: failed to get "
"current working directory\n"));
return;
}
if (vfs_ChDir(conn, fname) == -1) {
DEBUG(0,("change_dir_owner_to_parent: failed to change "
"current working directory to %s. Error "
"was %s\n", fname, strerror(errno) ));
goto out;
}
if (SMB_VFS_STAT(conn,".",&sbuf) == -1) {
DEBUG(0,("change_dir_owner_to_parent: failed to stat "
"directory '.' (%s) Error was %s\n",
fname, strerror(errno)));
goto out;
}
if (sbuf.st_dev != psbuf->st_dev ||
sbuf.st_ino != psbuf->st_ino ||
sbuf.st_mode != psbuf->st_mode ) {
DEBUG(0,("change_dir_owner_to_parent: "
"device/inode/mode on directory %s changed. "
"Refusing to chown !\n", fname ));
goto out;
}
become_root();
ret = SMB_VFS_CHOWN(conn, ".", parent_st.st_uid, (gid_t)-1);
unbecome_root();
if (ret == -1) {
DEBUG(10,("change_dir_owner_to_parent: failed to chown "
"directory %s to parent directory uid %u. "
"Error was %s\n", fname,
(unsigned int)parent_st.st_uid, strerror(errno) ));
goto out;
}
DEBUG(10,("change_dir_owner_to_parent: changed ownership of new "
"directory %s to parent directory uid %u.\n",
fname, (unsigned int)parent_st.st_uid ));
out:
vfs_ChDir(conn,saved_dir);
}
static NTSTATUS open_file(files_struct *fsp,
connection_struct *conn,
const char *parent_dir,
const char *name,
const char *path,
SMB_STRUCT_STAT *psbuf,
int flags,
mode_t unx_mode,
uint32 access_mask,
uint32 open_access_mask)
{
NTSTATUS status = NT_STATUS_OK;
int accmode = (flags & O_ACCMODE);
int local_flags = flags;
BOOL file_existed = VALID_STAT(*psbuf);
fsp->fh->fd = -1;
errno = EPERM;
if (!CAN_WRITE(conn)) {
if(accmode != O_RDONLY) {
DEBUG(3,("Permission denied opening %s\n", path));
return NT_STATUS_ACCESS_DENIED;
} else if(flags & O_CREAT) {
flags &= ~O_CREAT;
local_flags &= ~O_CREAT;
}
}
if ((accmode == O_RDONLY) && ((flags & O_TRUNC) == O_TRUNC)) {
DEBUG(10,("open_file: truncate requested on read-only open "
"for file %s\n", path));
local_flags = (flags & ~O_ACCMODE)|O_RDWR;
}
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) ) {
local_flags &= ~O_TRUNC;
#if defined(O_NONBLOCK) && defined(S_ISFIFO)
if (file_existed && S_ISFIFO(psbuf->st_mode)) {
local_flags |= O_NONBLOCK;
}
#endif
if ((local_flags & O_CREAT) && !file_existed &&
ms_has_wild(path)) {
return NT_STATUS_OBJECT_NAME_INVALID;
}
status = fd_open(conn, path, fsp, local_flags, unx_mode);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(3,("Error opening file %s (%s) (local_flags=%d) "
"(flags=%d)\n",
path,nt_errstr(status),local_flags,flags));
return status;
}
if ((local_flags & O_CREAT) && !file_existed) {
if (lp_inherit_perms(SNUM(conn))) {
inherit_access_acl(conn, parent_dir, path,
unx_mode);
}
if (lp_inherit_owner(SNUM(conn))) {
change_file_owner_to_parent(conn, parent_dir,
fsp);
}
notify_fname(conn, NOTIFY_ACTION_ADDED,
FILE_NOTIFY_CHANGE_FILE_NAME, path);
}
} else {
fsp->fh->fd = -1;
}
if (!file_existed) {
int ret;
if (fsp->fh->fd == -1) {
ret = SMB_VFS_STAT(conn, path, psbuf);
} else {
ret = SMB_VFS_FSTAT(fsp,fsp->fh->fd,psbuf);
if (ret == -1) {
DEBUG(0,("Error doing fstat on open file %s "
"(%s)\n", path,strerror(errno) ));
}
}
if (ret == -1) {
status = map_nt_error_from_unix(errno);
fd_close(conn, fsp);
return status;
}
}
if(S_ISDIR(psbuf->st_mode)) {
fd_close(conn, fsp);
errno = EISDIR;
return NT_STATUS_FILE_IS_A_DIRECTORY;
}
fsp->mode = psbuf->st_mode;
fsp->inode = psbuf->st_ino;
fsp->dev = psbuf->st_dev;
fsp->vuid = current_user.vuid;
fsp->file_pid = global_smbpid;
fsp->can_lock = True;
fsp->can_read = (access_mask & (FILE_READ_DATA)) ? True : False;
if (!CAN_WRITE(conn)) {
fsp->can_write = False;
} else {
fsp->can_write = (access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) ?
True : False;
}
fsp->print_file = False;
fsp->modified = False;
fsp->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;
}
string_set(&fsp->fsp_name, path);
fsp->wcp = NULL;
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,
BOOLSTR(fsp->can_read), BOOLSTR(fsp->can_write),
conn->num_files_open + 1));
errno = 0;
return NT_STATUS_OK;
}
static BOOL is_executable(const char *fname)
{
if ((fname = strrchr_m(fname,'.'))) {
if (strequal(fname,".com") ||
strequal(fname,".dll") ||
strequal(fname,".exe") ||
strequal(fname,".sym")) {
return True;
}
}
return False;
}
static BOOL share_conflict(struct share_mode_entry *entry,
uint32 access_mask,
uint32 share_access)
{
DEBUG(10,("share_conflict: entry->access_mask = 0x%x, "
"entry->share_access = 0x%x, "
"entry->private_options = 0x%x\n",
(unsigned int)entry->access_mask,
(unsigned int)entry->share_access,
(unsigned int)entry->private_options));
DEBUG(10,("share_conflict: access_mask = 0x%x, share_access = 0x%x\n",
(unsigned int)access_mask, (unsigned int)share_access));
if ((entry->access_mask & (FILE_WRITE_DATA|
FILE_APPEND_DATA|
FILE_READ_DATA|
FILE_EXECUTE|
DELETE_ACCESS)) == 0) {
DEBUG(10,("share_conflict: No conflict due to "
"entry->access_mask = 0x%x\n",
(unsigned int)entry->access_mask ));
return False;
}
if ((access_mask & (FILE_WRITE_DATA|
FILE_APPEND_DATA|
FILE_READ_DATA|
FILE_EXECUTE|
DELETE_ACCESS)) == 0) {
DEBUG(10,("share_conflict: No conflict due to "
"access_mask = 0x%x\n",
(unsigned int)access_mask ));
return False;
}
#if 1
#define CHECK_MASK(num, am, right, sa, share) \
DEBUG(10,("share_conflict: [%d] am (0x%x) & right (0x%x) = 0x%x\n", \
(unsigned int)(num), (unsigned int)(am), \
(unsigned int)(right), (unsigned int)(am)&(right) )); \
DEBUG(10,("share_conflict: [%d] sa (0x%x) & share (0x%x) = 0x%x\n", \
(unsigned int)(num), (unsigned int)(sa), \
(unsigned int)(share), (unsigned int)(sa)&(share) )); \
if (((am) & (right)) && !((sa) & (share))) { \
DEBUG(10,("share_conflict: check %d conflict am = 0x%x, right = 0x%x, \
sa = 0x%x, share = 0x%x\n", (num), (unsigned int)(am), (unsigned int)(right), (unsigned int)(sa), \
(unsigned int)(share) )); \
return True; \
}
#else
#define CHECK_MASK(num, am, right, sa, share) \
if (((am) & (right)) && !((sa) & (share))) { \
DEBUG(10,("share_conflict: check %d conflict am = 0x%x, right = 0x%x, \
sa = 0x%x, share = 0x%x\n", (num), (unsigned int)(am), (unsigned int)(right), (unsigned int)(sa), \
(unsigned int)(share) )); \
return True; \
}
#endif
CHECK_MASK(1, entry->access_mask, FILE_WRITE_DATA | FILE_APPEND_DATA,
share_access, FILE_SHARE_WRITE);
CHECK_MASK(2, access_mask, FILE_WRITE_DATA | FILE_APPEND_DATA,
entry->share_access, FILE_SHARE_WRITE);
CHECK_MASK(3, entry->access_mask, FILE_READ_DATA | FILE_EXECUTE,
share_access, FILE_SHARE_READ);
CHECK_MASK(4, access_mask, FILE_READ_DATA | FILE_EXECUTE,
entry->share_access, FILE_SHARE_READ);
CHECK_MASK(5, entry->access_mask, DELETE_ACCESS,
share_access, FILE_SHARE_DELETE);
CHECK_MASK(6, access_mask, DELETE_ACCESS,
entry->share_access, FILE_SHARE_DELETE);
DEBUG(10,("share_conflict: No conflict.\n"));
return False;
}
#if defined(DEVELOPER)
static void validate_my_share_entries(int num,
struct share_mode_entry *share_entry)
{
files_struct *fsp;
if (!procid_is_me(&share_entry->pid)) {
return;
}
if (is_deferred_open_entry(share_entry) &&
!open_was_deferred(share_entry->op_mid)) {
pstring str;
pstr_sprintf(str, "Got a deferred entry without a request: "
"PANIC: %s\n", share_mode_str(num, share_entry));
smb_panic(str);
}
if (!is_valid_share_mode_entry(share_entry)) {
return;
}
fsp = file_find_dif(share_entry->dev, share_entry->inode,
share_entry->share_file_id);
if (!fsp) {
DEBUG(0,("validate_my_share_entries: PANIC : %s\n",
share_mode_str(num, share_entry) ));
smb_panic("validate_my_share_entries: Cannot match a "
"share entry with an open file\n");
}
if (is_deferred_open_entry(share_entry) ||
is_unused_share_mode_entry(share_entry)) {
goto panic;
}
if ((share_entry->op_type == NO_OPLOCK) &&
(fsp->oplock_type == FAKE_LEVEL_II_OPLOCK)) {
return;
}
if (((uint16)fsp->oplock_type) != share_entry->op_type) {
goto panic;
}
return;
panic:
{
pstring str;
DEBUG(0,("validate_my_share_entries: PANIC : %s\n",
share_mode_str(num, share_entry) ));
slprintf(str, sizeof(str)-1, "validate_my_share_entries: "
"file %s, oplock_type = 0x%x, op_type = 0x%x\n",
fsp->fsp_name, (unsigned int)fsp->oplock_type,
(unsigned int)share_entry->op_type );
smb_panic(str);
}
}
#endif
static BOOL is_stat_open(uint32 access_mask)
{
return (access_mask &&
((access_mask & ~(SYNCHRONIZE_ACCESS| FILE_READ_ATTRIBUTES|
FILE_WRITE_ATTRIBUTES))==0) &&
((access_mask & (SYNCHRONIZE_ACCESS|FILE_READ_ATTRIBUTES|
FILE_WRITE_ATTRIBUTES)) != 0));
}
static NTSTATUS open_mode_check(connection_struct *conn,
const char *fname,
struct share_mode_lock *lck,
uint32 access_mask,
uint32 share_access,
uint32 create_options,
BOOL *file_existed)
{
int i;
if(lck->num_share_modes == 0) {
return NT_STATUS_OK;
}
*file_existed = True;
if (is_stat_open(access_mask)) {
return NT_STATUS_OK;
}
if (lck->delete_on_close) {
return NT_STATUS_DELETE_PENDING;
}
#if defined(DEVELOPER)
for(i = 0; i < lck->num_share_modes; i++) {
validate_my_share_entries(i, &lck->share_modes[i]);
}
#endif
if (!lp_share_modes(SNUM(conn))) {
return NT_STATUS_OK;
}
for(i = 0; i < lck->num_share_modes; i++) {
if (!is_valid_share_mode_entry(&lck->share_modes[i])) {
continue;
}
if (share_conflict(&lck->share_modes[i],
access_mask, share_access)) {
return NT_STATUS_SHARING_VIOLATION;
}
}
return NT_STATUS_OK;
}
static BOOL is_delete_request(files_struct *fsp) {
return ((fsp->access_mask == DELETE_ACCESS) &&
(fsp->oplock_type == NO_OPLOCK));
}
static BOOL delay_for_oplocks(struct share_mode_lock *lck,
files_struct *fsp,
int pass_number,
int oplock_request)
{
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];
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;
}
for (i=0; i<lck->num_share_modes; i++) {
if (!is_valid_share_mode_entry(&lck->share_modes[i])) {
continue;
}
valid_entry = True;
if (pass_number == 1) {
if (BATCH_OPLOCK_TYPE(lck->share_modes[i].op_type)) {
SMB_ASSERT(exclusive == NULL);
exclusive = &lck->share_modes[i];
}
} else {
if (EXCLUSIVE_OPLOCK_TYPE(lck->share_modes[i].op_type)) {
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 (!valid_entry) {
if (fsp->oplock_type == NO_OPLOCK) {
fsp->oplock_type = FAKE_LEVEL_II_OPLOCK;
}
return False;
}
if (exclusive != NULL) {
SMB_ASSERT(!have_level2);
delay_it = is_delete_request(fsp) ?
BATCH_OPLOCK_TYPE(exclusive->op_type) : True;
}
if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
fsp->oplock_type = LEVEL_II_OPLOCK;
}
if ((fsp->oplock_type == NO_OPLOCK) && have_level2) {
fsp->oplock_type = FAKE_LEVEL_II_OPLOCK;
}
if (!delay_it) {
return False;
}
DEBUG(10, ("Sending break request to PID %s\n",
procid_str_static(&exclusive->pid)));
exclusive->op_mid = get_current_mid();
share_mode_entry_to_message(msg, exclusive);
if (oplock_request & FORCE_OPLOCK_BREAK_TO_NONE) {
SSVAL(msg,6,exclusive->op_type | FORCE_OPLOCK_BREAK_TO_NONE);
}
status = message_send_pid(exclusive->pid, MSG_SMB_BREAK_REQUEST,
msg, MSG_SMB_SHARE_MODE_ENTRY_SIZE, True);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(3, ("Could not send oplock break message: %s\n",
nt_errstr(status)));
}
return True;
}
static BOOL request_timed_out(struct timeval request_time,
struct timeval timeout)
{
struct timeval now, end_time;
GetTimeOfDay(&now);
end_time = timeval_sum(&request_time, &timeout);
return (timeval_compare(&end_time, &now) < 0);
}
static void defer_open(struct share_mode_lock *lck,
struct timeval request_time,
struct timeval timeout,
struct deferred_open_record *state)
{
uint16 mid = get_current_mid();
int i;
for (i=0; i<lck->num_share_modes; i++) {
struct share_mode_entry *e = &lck->share_modes[i];
if (!is_deferred_open_entry(e)) {
continue;
}
if (procid_is_me(&e->pid) && (e->op_mid == mid)) {
DEBUG(0, ("Trying to defer an already deferred "
"request: mid=%d, exiting\n", mid));
exit_server("attempt to defer a deferred request");
}
}
DEBUG(10,("defer_open_sharing_error: time [%u.%06u] adding deferred "
"open entry for mid %u\n",
(unsigned int)request_time.tv_sec,
(unsigned int)request_time.tv_usec,
(unsigned int)mid));
if (!push_deferred_smb_message(mid, request_time, timeout,
(char *)state, sizeof(*state))) {
exit_server("push_deferred_smb_message failed");
}
add_deferred_open(lck, mid, request_time, state->dev, state->inode);
srv_defer_sign_response(mid);
}
static BOOL open_match_attributes(connection_struct *conn,
const char *path,
uint32 old_dos_attr,
uint32 new_dos_attr,
mode_t existing_unx_mode,
mode_t new_unx_mode,
mode_t *returned_unx_mode)
{
uint32 noarch_old_dos_attr, noarch_new_dos_attr;
noarch_old_dos_attr = (old_dos_attr & ~FILE_ATTRIBUTE_ARCHIVE);
noarch_new_dos_attr = (new_dos_attr & ~FILE_ATTRIBUTE_ARCHIVE);
if((noarch_old_dos_attr == 0 && noarch_new_dos_attr != 0) ||
(noarch_old_dos_attr != 0 && ((noarch_old_dos_attr & noarch_new_dos_attr) == noarch_old_dos_attr))) {
*returned_unx_mode = new_unx_mode;
} else {
*returned_unx_mode = (mode_t)0;
}
DEBUG(10,("open_match_attributes: file %s old_dos_attr = 0x%x, "
"existing_unx_mode = 0%o, new_dos_attr = 0x%x "
"returned_unx_mode = 0%o\n",
path,
(unsigned int)old_dos_attr,
(unsigned int)existing_unx_mode,
(unsigned int)new_dos_attr,
(unsigned int)*returned_unx_mode ));
if (lp_map_system(SNUM(conn)) || lp_store_dos_attributes(SNUM(conn))) {
if ((old_dos_attr & FILE_ATTRIBUTE_SYSTEM) &&
!(new_dos_attr & FILE_ATTRIBUTE_SYSTEM)) {
return False;
}
}
if (lp_map_hidden(SNUM(conn)) || lp_store_dos_attributes(SNUM(conn))) {
if ((old_dos_attr & FILE_ATTRIBUTE_HIDDEN) &&
!(new_dos_attr & FILE_ATTRIBUTE_HIDDEN)) {
return False;
}
}
return True;
}
static files_struct *fcb_or_dos_open(connection_struct *conn,
const char *fname, SMB_DEV_T dev,
SMB_INO_T inode,
uint32 access_mask,
uint32 share_access,
uint32 create_options)
{
files_struct *fsp;
files_struct *dup_fsp;
DEBUG(5,("fcb_or_dos_open: attempting old open semantics for "
"file %s.\n", fname ));
for(fsp = file_find_di_first(dev, inode); fsp;
fsp = file_find_di_next(fsp)) {
DEBUG(10,("fcb_or_dos_open: checking file %s, fd = %d, "
"vuid = %u, file_pid = %u, private_options = 0x%x "
"access_mask = 0x%x\n", fsp->fsp_name,
fsp->fh->fd, (unsigned int)fsp->vuid,
(unsigned int)fsp->file_pid,
(unsigned int)fsp->fh->private_options,
(unsigned int)fsp->access_mask ));
if (fsp->fh->fd != -1 &&
fsp->vuid == current_user.vuid &&
fsp->file_pid == global_smbpid &&
(fsp->fh->private_options & (NTCREATEX_OPTIONS_PRIVATE_DENY_DOS |
NTCREATEX_OPTIONS_PRIVATE_DENY_FCB)) &&
(fsp->access_mask & FILE_WRITE_DATA) &&
strequal(fsp->fsp_name, fname)) {
DEBUG(10,("fcb_or_dos_open: file match\n"));
break;
}
}
if (!fsp) {
return NULL;
}
if (is_executable(fname) &&
(fsp->fh->private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS)) {
DEBUG(10,("fcb_or_dos_open: file fail due to is_executable.\n"));
return NULL;
}
if (!NT_STATUS_IS_OK(dup_file_fsp(fsp, access_mask, share_access,
create_options, &dup_fsp))) {
return NULL;
}
return dup_fsp;
}
BOOL map_open_params_to_ntcreate(const char *fname, int deny_mode, int open_func,
uint32 *paccess_mask,
uint32 *pshare_mode,
uint32 *pcreate_disposition,
uint32 *pcreate_options)
{
uint32 access_mask;
uint32 share_mode;
uint32 create_disposition;
uint32 create_options = 0;
DEBUG(10,("map_open_params_to_ntcreate: fname = %s, deny_mode = 0x%x, "
"open_func = 0x%x\n",
fname, (unsigned int)deny_mode, (unsigned int)open_func ));
switch (GET_OPENX_MODE(deny_mode)) {
case DOS_OPEN_EXEC:
case DOS_OPEN_RDONLY:
access_mask = FILE_GENERIC_READ;
break;
case DOS_OPEN_WRONLY:
access_mask = FILE_GENERIC_WRITE;
break;
case DOS_OPEN_RDWR:
case DOS_OPEN_FCB:
access_mask = FILE_GENERIC_READ|FILE_GENERIC_WRITE;
break;
default:
DEBUG(10,("map_open_params_to_ntcreate: bad open mode = 0x%x\n",
(unsigned int)GET_OPENX_MODE(deny_mode)));
return False;
}
switch (open_func) {
case OPENX_FILE_EXISTS_FAIL|OPENX_FILE_CREATE_IF_NOT_EXIST:
create_disposition = FILE_CREATE;
break;
case OPENX_FILE_EXISTS_OPEN:
create_disposition = FILE_OPEN;
break;
case OPENX_FILE_EXISTS_OPEN|OPENX_FILE_CREATE_IF_NOT_EXIST:
create_disposition = FILE_OPEN_IF;
break;
case OPENX_FILE_EXISTS_TRUNCATE:
create_disposition = FILE_OVERWRITE;
break;
case OPENX_FILE_EXISTS_TRUNCATE|OPENX_FILE_CREATE_IF_NOT_EXIST:
create_disposition = FILE_OVERWRITE_IF;
break;
default:
if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_EXEC) {
create_disposition = FILE_CREATE;
break;
}
DEBUG(10,("map_open_params_to_ntcreate: bad "
"open_func 0x%x\n", (unsigned int)open_func));
return False;
}
switch (GET_DENY_MODE(deny_mode)) {
case DENY_ALL:
share_mode = FILE_SHARE_NONE;
break;
case DENY_WRITE:
share_mode = FILE_SHARE_READ;
break;
case DENY_READ:
share_mode = FILE_SHARE_WRITE;
break;
case DENY_NONE:
share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
break;
case DENY_DOS:
create_options |= NTCREATEX_OPTIONS_PRIVATE_DENY_DOS;
if (is_executable(fname)) {
share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
} else {
if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_RDONLY) {
share_mode = FILE_SHARE_READ;
} else {
share_mode = FILE_SHARE_NONE;
}
}
break;
case DENY_FCB:
create_options |= NTCREATEX_OPTIONS_PRIVATE_DENY_FCB;
share_mode = FILE_SHARE_NONE;
break;
default:
DEBUG(10,("map_open_params_to_ntcreate: bad deny_mode 0x%x\n",
(unsigned int)GET_DENY_MODE(deny_mode) ));
return False;
}
DEBUG(10,("map_open_params_to_ntcreate: file %s, access_mask = 0x%x, "
"share_mode = 0x%x, create_disposition = 0x%x, "
"create_options = 0x%x\n",
fname,
(unsigned int)access_mask,
(unsigned int)share_mode,
(unsigned int)create_disposition,
(unsigned int)create_options ));
if (paccess_mask) {
*paccess_mask = access_mask;
}
if (pshare_mode) {
*pshare_mode = share_mode;
}
if (pcreate_disposition) {
*pcreate_disposition = create_disposition;
}
if (pcreate_options) {
*pcreate_options = create_options;
}
return True;
}
static void schedule_defer_open(struct share_mode_lock *lck, struct timeval request_time)
{
struct deferred_open_record state;
struct timeval timeout;
timeout = timeval_set(OPLOCK_BREAK_TIMEOUT*2, 0);
state.delayed_for_oplocks = True;
state.dev = lck->dev;
state.inode = lck->ino;
if (!request_timed_out(request_time, timeout)) {
defer_open(lck, request_time, timeout, &state);
}
}
NTSTATUS open_file_ntcreate(connection_struct *conn,
const char *fname,
SMB_STRUCT_STAT *psbuf,
uint32 access_mask,
uint32 share_access,
uint32 create_disposition,
uint32 create_options,
uint32 new_dos_attributes,
int oplock_request,
int *pinfo,
files_struct **result)
{
int flags=0;
int flags2=0;
BOOL file_existed = VALID_STAT(*psbuf);
BOOL def_acl = False;
BOOL posix_open = False;
BOOL new_file_created = False;
SMB_DEV_T dev = 0;
SMB_INO_T inode = 0;
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;
uint32 existing_dos_attributes = 0;
struct pending_message_list *pml = NULL;
uint16 mid = get_current_mid();
struct timeval request_time = timeval_zero();
struct share_mode_lock *lck = NULL;
uint32 open_access_mask = access_mask;
NTSTATUS status;
int ret_flock;
char *parent_dir;
const char *newname;
if (conn->printer) {
if (pinfo) {
*pinfo = FILE_WAS_CREATED;
}
DEBUG(10, ("open_file_ntcreate: printer open fname=%s\n", fname));
return print_fsp_open(conn, fname, result);
}
if (!parent_dirname_talloc(tmp_talloc_ctx(), fname, &parent_dir,
&newname)) {
return NT_STATUS_NO_MEMORY;
}
if (new_dos_attributes & FILE_FLAG_POSIX_SEMANTICS) {
posix_open = True;
unx_mode = (mode_t)(new_dos_attributes & ~FILE_FLAG_POSIX_SEMANTICS);
new_dos_attributes = 0;
} else {
unx_mode = unix_mode(conn, new_dos_attributes | aARCH, fname,
parent_dir);
}
DEBUG(10, ("open_file_ntcreate: fname=%s, dos_attrs=0x%x "
"access_mask=0x%x share_access=0x%x "
"create_disposition = 0x%x create_options=0x%x "
"unix mode=0%o oplock_request=%d\n",
fname, new_dos_attributes, access_mask, share_access,
create_disposition, create_options, unx_mode,
oplock_request));
if ((pml = get_open_deferred_message(mid)) != NULL) {
struct deferred_open_record *state =
(struct deferred_open_record *)pml->private_data.data;
request_time = pml->request_time;
lck = get_share_mode_lock(NULL, state->dev, state->inode, NULL, NULL);
if (lck == NULL) {
DEBUG(0, ("could not get share mode lock\n"));
} else {
del_deferred_open_entry(lck, mid);
TALLOC_FREE(lck);
}
remove_deferred_open_smb_message(mid);
}
status = check_name(conn, fname);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (!posix_open) {
new_dos_attributes &= SAMBA_ATTRIBUTES_MASK;
if (file_existed) {
existing_dos_attributes = dos_mode(conn, fname, psbuf);
}
}
if (!lp_oplocks(SNUM(conn)) || global_client_failed_oplock_break ||
IS_VETO_OPLOCK_PATH(conn, fname)) {
oplock_request &= SAMBA_PRIVATE_OPLOCK_MASK;
}
if (!lp_posix_pathnames() && strstr(fname,".+,;=[].")) {
DEBUG(5,("open_file_ntcreate: OS/2 long filenames are not "
"supported.\n"));
if (use_nt_status()) {
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
return NT_STATUS_DOS(ERRDOS, ERRcannotopen);
}
switch( create_disposition ) {
case FILE_SUPERSEDE:
flags2 |= (O_CREAT | O_TRUNC);
break;
case FILE_OVERWRITE_IF:
flags2 |= (O_CREAT | O_TRUNC);
break;
case FILE_OPEN:
if (!file_existed) {
DEBUG(5,("open_file_ntcreate: FILE_OPEN "
"requested for file %s and file "
"doesn't exist.\n", fname ));
errno = ENOENT;
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
break;
case FILE_OVERWRITE:
if (!file_existed) {
DEBUG(5,("open_file_ntcreate: FILE_OVERWRITE "
"requested for file %s and file "
"doesn't exist.\n", fname ));
errno = ENOENT;
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
flags2 |= O_TRUNC;
break;
case FILE_CREATE:
if (file_existed) {
DEBUG(5,("open_file_ntcreate: FILE_CREATE "
"requested for file %s and file "
"already exists.\n", fname ));
if (S_ISDIR(psbuf->st_mode)) {
errno = EISDIR;
} else {
errno = EEXIST;
}
return map_nt_error_from_unix(errno);
}
flags2 |= (O_CREAT|O_EXCL);
break;
case FILE_OPEN_IF:
flags2 |= O_CREAT;
break;
default:
return NT_STATUS_INVALID_PARAMETER;
}
if (!posix_open && file_existed && ((create_disposition == FILE_OVERWRITE) ||
(create_disposition == FILE_OVERWRITE_IF))) {
if (!open_match_attributes(conn, fname,
existing_dos_attributes,
new_dos_attributes, psbuf->st_mode,
unx_mode, &new_unx_mode)) {
DEBUG(5,("open_file_ntcreate: attributes missmatch "
"for file %s (%x %x) (0%o, 0%o)\n",
fname, existing_dos_attributes,
new_dos_attributes,
(unsigned int)psbuf->st_mode,
(unsigned int)unx_mode ));
errno = EACCES;
return NT_STATUS_ACCESS_DENIED;
}
}
if (access_mask == MAXIMUM_ALLOWED_ACCESS) {
open_access_mask = access_mask = FILE_GENERIC_ALL;
}
se_map_generic(&access_mask, &file_generic_mapping);
open_access_mask = access_mask;
if (flags2 & O_TRUNC) {
open_access_mask |= FILE_WRITE_DATA;
}
DEBUG(10, ("open_file_ntcreate: fname=%s, after mapping "
"access_mask=0x%x\n", fname, access_mask ));
if (access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) {
if ((create_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS) ||
access_mask & (FILE_READ_ATTRIBUTES|FILE_READ_DATA|FILE_READ_EA|FILE_EXECUTE)) {
flags = O_RDWR;
} else {
flags = O_WRONLY;
}
} else {
flags = O_RDONLY;
}
#if defined(O_SYNC)
if ((create_options & FILE_WRITE_THROUGH) && lp_strict_sync(SNUM(conn))) {
flags2 |= O_SYNC;
}
#endif
if (posix_open && (access_mask & FILE_APPEND_DATA)) {
flags2 |= O_APPEND;
}
if (!posix_open && !CAN_WRITE(conn)) {
flags2 &= ~(O_CREAT|O_TRUNC);
}
if (flags != O_RDONLY && file_existed &&
(!CAN_WRITE(conn) || IS_DOS_READONLY(existing_dos_attributes))) {
DEBUG(5,("open_file_ntcreate: write access requested for "
"file %s on read only %s\n",
fname, !CAN_WRITE(conn) ? "share" : "file" ));
errno = EACCES;
return NT_STATUS_ACCESS_DENIED;
}
status = file_new(conn, &fsp);
if(!NT_STATUS_IS_OK(status)) {
return status;
}
fsp->dev = psbuf->st_dev;
fsp->inode = psbuf->st_ino;
fsp->share_access = share_access;
fsp->fh->private_options = create_options;
fsp->access_mask = open_access_mask;
fsp->posix_open = posix_open;
fsp->oplock_type = (oplock_request & ~SAMBA_PRIVATE_OPLOCK_MASK);
if (timeval_is_zero(&request_time)) {
request_time = fsp->open_time;
}
if (file_existed) {
dev = psbuf->st_dev;
inode = psbuf->st_ino;
lck = get_share_mode_lock(NULL, dev, inode,
conn->connectpath,
fname);
if (lck == NULL) {
file_free(fsp);
DEBUG(0, ("Could not get share mode lock\n"));
return NT_STATUS_SHARING_VIOLATION;
}
if (delay_for_oplocks(lck, fsp, 1, oplock_request)) {
schedule_defer_open(lck, request_time);
TALLOC_FREE(lck);
file_free(fsp);
return NT_STATUS_SHARING_VIOLATION;
}
status = open_mode_check(conn, fname, lck,
access_mask, share_access,
create_options, &file_existed);
if (NT_STATUS_IS_OK(status)) {
if (delay_for_oplocks(lck, fsp, 2, oplock_request)) {
schedule_defer_open(lck, request_time);
TALLOC_FREE(lck);
file_free(fsp);
return NT_STATUS_SHARING_VIOLATION;
}
}
if (NT_STATUS_EQUAL(status, NT_STATUS_DELETE_PENDING)) {
TALLOC_FREE(lck);
file_free(fsp);
return status;
}
if (!NT_STATUS_IS_OK(status)) {
uint32 can_access_mask;
BOOL can_access = True;
SMB_ASSERT(NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION));
if (create_options &
(NTCREATEX_OPTIONS_PRIVATE_DENY_DOS|
NTCREATEX_OPTIONS_PRIVATE_DENY_FCB)) {
files_struct *fsp_dup;
fsp_dup = fcb_or_dos_open(conn, fname, dev,
inode, access_mask,
share_access,
create_options);
if (fsp_dup) {
TALLOC_FREE(lck);
file_free(fsp);
if (pinfo) {
*pinfo = FILE_WAS_OPENED;
}
conn->num_files_open++;
*result = fsp_dup;
return NT_STATUS_OK;
}
}
if (flags & O_RDWR) {
can_access_mask = FILE_READ_DATA|FILE_WRITE_DATA;
} else if (flags & O_WRONLY) {
can_access_mask = FILE_WRITE_DATA;
} else {
can_access_mask = FILE_READ_DATA;
}
#if HAVE_ACCESSX_NP
can_access = can_access_file(conn, fname, psbuf,
can_access_mask);
#else
if (((can_access_mask & FILE_WRITE_DATA) && !CAN_WRITE(conn)) ||
!can_access_file(conn,fname,psbuf,can_access_mask)) {
can_access = False;
}
#endif
if (!(oplock_request & INTERNAL_OPEN_ONLY) &&
lp_defer_sharing_violations()) {
struct timeval timeout;
struct deferred_open_record state;
int timeout_usecs;
timeout_usecs = lp_parm_int(SNUM(conn),
"smbd","sharedelay",
SHARING_VIOLATION_USEC_WAIT);
timeout = timeval_set(0, timeout_usecs);
state.delayed_for_oplocks = False;
state.dev = dev;
state.inode = inode;
if (!request_timed_out(request_time,
timeout)) {
defer_open(lck, request_time, timeout,
&state);
}
}
TALLOC_FREE(lck);
if (can_access) {
status = NT_STATUS_SHARING_VIOLATION;
} else {
status = NT_STATUS_ACCESS_DENIED;
}
file_free(fsp);
return status;
}
}
SMB_ASSERT(!file_existed || (lck != NULL));
if ((flags2 & O_CREAT) && lp_inherit_acls(SNUM(conn)) &&
(def_acl = directory_has_default_acl(conn, parent_dir))) {
unx_mode = 0777;
}
DEBUG(4,("calling open_file with flags=0x%X flags2=0x%X mode=0%o, "
"access_mask = 0x%x, open_access_mask = 0x%x\n",
(unsigned int)flags, (unsigned int)flags2,
(unsigned int)unx_mode, (unsigned int)access_mask,
(unsigned int)open_access_mask));
fsp_open = open_file(fsp, conn, parent_dir, newname, fname, psbuf,
flags|flags2, unx_mode, access_mask,
open_access_mask);
if (!NT_STATUS_IS_OK(fsp_open)) {
if (file_existed && errno == EDEADLK &&
!(oplock_request & INTERNAL_OPEN_ONLY) &&
lp_defer_sharing_violations()) {
struct timeval timeout;
struct deferred_open_record state;
int timeout_usecs;
state.delayed_for_oplocks = False;
state.dev = dev;
state.inode = inode;
timeout_usecs = lp_parm_int(SNUM(conn),
"smbd","sharedelay",
SHARING_VIOLATION_USEC_WAIT);
timeout = timeval_set(0, timeout_usecs);
if (!request_timed_out(request_time, timeout)) {
defer_open(lck, request_time, timeout,
&state);
}
fsp_open = NT_STATUS_SHARING_VIOLATION;
}
if (lck != NULL) {
TALLOC_FREE(lck);
}
file_free(fsp);
return fsp_open;
}
if (!file_existed) {
dev = fsp->dev;
inode = fsp->inode;
lck = get_share_mode_lock(NULL, dev, inode,
conn->connectpath,
fname);
if (lck == NULL) {
DEBUG(0, ("open_file_ntcreate: Could not get share "
"mode lock for %s\n", fname));
fd_close(conn, fsp);
file_free(fsp);
return NT_STATUS_SHARING_VIOLATION;
}
if (delay_for_oplocks(lck, fsp, 1, oplock_request)) {
schedule_defer_open(lck, request_time);
TALLOC_FREE(lck);
fd_close(conn, fsp);
file_free(fsp);
return NT_STATUS_SHARING_VIOLATION;
}
status = open_mode_check(conn, fname, lck,
access_mask, share_access,
create_options, &file_existed);
if (NT_STATUS_IS_OK(status)) {
if (delay_for_oplocks(lck, fsp, 2, oplock_request)) {
schedule_defer_open(lck, request_time);
TALLOC_FREE(lck);
fd_close(conn, fsp);
file_free(fsp);
return NT_STATUS_SHARING_VIOLATION;
}
}
if (!NT_STATUS_IS_OK(status)) {
struct deferred_open_record state;
fd_close(conn, fsp);
file_free(fsp);
state.delayed_for_oplocks = False;
state.dev = dev;
state.inode = inode;
defer_open(lck, request_time, timeval_zero(),
&state);
TALLOC_FREE(lck);
return status;
}
}
SMB_ASSERT(lck != NULL);
ret_flock = SMB_VFS_KERNEL_FLOCK(fsp, fsp->fh->fd, share_access);
if(ret_flock == -1 ){
TALLOC_FREE(lck);
fd_close(conn, fsp);
file_free(fsp);
return NT_STATUS_SHARING_VIOLATION;
}
if (flags2&O_TRUNC) {
if ((SMB_VFS_FTRUNCATE(fsp,fsp->fh->fd,0) == -1) ||
(SMB_VFS_FSTAT(fsp,fsp->fh->fd,psbuf)==-1)) {
status = map_nt_error_from_unix(errno);
TALLOC_FREE(lck);
fd_close(conn,fsp);
file_free(fsp);
return status;
}
}
fsp->share_access = share_access;
fsp->fh->private_options = create_options;
fsp->access_mask = access_mask;
if (file_existed) {
if (is_stat_open(open_access_mask)) {
fsp->oplock_type = NO_OPLOCK;
}
if (!(flags2 & O_TRUNC)) {
info = FILE_WAS_OPENED;
} else {
info = FILE_WAS_OVERWRITTEN;
}
} else {
info = FILE_WAS_CREATED;
}
if (pinfo) {
*pinfo = info;
}
if ((fsp->oplock_type != NO_OPLOCK) &&
(fsp->oplock_type != FAKE_LEVEL_II_OPLOCK)) {
if (!set_file_oplock(fsp, fsp->oplock_type)) {
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);
if ((create_options & FILE_DELETE_ON_CLOSE) && can_set_initial_delete_on_close(lck)) {
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(conn,fsp);
file_free(fsp);
return status;
}
fsp->initial_delete_on_close = True;
}
if (new_file_created) {
if (lp_map_archive(SNUM(conn)) ||
lp_store_dos_attributes(SNUM(conn))) {
if (!posix_open) {
SMB_STRUCT_STAT tmp_sbuf;
SET_STAT_INVALID(tmp_sbuf);
if (file_set_dosmode(
conn, fname,
new_dos_attributes | aARCH,
&tmp_sbuf,
parent_dir) == 0) {
unx_mode = tmp_sbuf.st_mode;
}
}
}
}
if (!posix_open && !file_existed && !def_acl) {
int saved_errno = errno;
if (SMB_VFS_FCHMOD_ACL(fsp, fsp->fh->fd, unx_mode) == -1 &&
errno == ENOSYS) {
errno = saved_errno;
}
} else if (new_unx_mode) {
int ret = -1;
{
int saved_errno = errno;
ret = SMB_VFS_FCHMOD_ACL(fsp, fsp->fh->fd,
new_unx_mode);
if (ret == -1 && errno == ENOSYS) {
errno = saved_errno;
} else {
DEBUG(5, ("open_file_ntcreate: reset "
"attributes of file %s to 0%o\n",
fname, (unsigned int)new_unx_mode));
ret = 0;
}
}
if ((ret == -1) &&
(SMB_VFS_FCHMOD(fsp, fsp->fh->fd, new_unx_mode) == -1))
DEBUG(5, ("open_file_ntcreate: failed to reset "
"attributes of file %s to 0%o\n",
fname, (unsigned int)new_unx_mode));
}
del_deferred_open_entry(lck, mid);
TALLOC_FREE(lck);
conn->num_files_open++;
*result = fsp;
return NT_STATUS_OK;
}
NTSTATUS open_file_fchmod(connection_struct *conn, 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;
}
status = file_new(conn, &fsp);
if(!NT_STATUS_IS_OK(status)) {
return status;
}
status = open_file(fsp, conn, NULL, NULL, fname, psbuf, O_WRONLY, 0,
FILE_WRITE_DATA, FILE_WRITE_DATA);
if (!NT_STATUS_IS_OK(status)) {
file_free(fsp);
return status;
}
*result = fsp;
return NT_STATUS_OK;
}
NTSTATUS close_file_fchmod(files_struct *fsp)
{
NTSTATUS status = fd_close(fsp->conn, fsp);
file_free(fsp);
return status;
}
static NTSTATUS mkdir_internal(connection_struct *conn,
const char *name,
uint32 file_attributes,
SMB_STRUCT_STAT *psbuf)
{
mode_t mode;
char *parent_dir;
const char *dirname;
NTSTATUS status;
BOOL posix_open = False;
if(!CAN_WRITE(conn)) {
DEBUG(5,("mkdir_internal: failing create on read-only share "
"%s\n", lp_servicename(SNUM(conn))));
return NT_STATUS_ACCESS_DENIED;
}
status = check_name(conn, name);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (!parent_dirname_talloc(tmp_talloc_ctx(), name, &parent_dir,
&dirname)) {
return NT_STATUS_NO_MEMORY;
}
if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
posix_open = True;
mode = (mode_t)(file_attributes & ~FILE_FLAG_POSIX_SEMANTICS);
} else {
mode = unix_mode(conn, aDIR, name, parent_dir);
}
if (SMB_VFS_MKDIR(conn, name, mode) != 0) {
return map_nt_error_from_unix(errno);
}
if (SMB_VFS_LSTAT(conn, name, psbuf) == -1) {
DEBUG(2, ("Could not stat directory '%s' just created: %s\n",
name, strerror(errno)));
return map_nt_error_from_unix(errno);
}
if (!S_ISDIR(psbuf->st_mode)) {
DEBUG(0, ("Directory just '%s' created is not a directory\n",
name));
return NT_STATUS_ACCESS_DENIED;
}
if (lp_store_dos_attributes(SNUM(conn))) {
if (!posix_open) {
file_set_dosmode(conn, name,
file_attributes | aDIR, NULL,
parent_dir);
}
}
if (lp_inherit_perms(SNUM(conn))) {
inherit_access_acl(conn, parent_dir, name, mode);
}
if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS)) {
if (mode & ~(S_IRWXU|S_IRWXG|S_IRWXO) && (mode & ~psbuf->st_mode)) {
SMB_VFS_CHMOD(conn, name,
psbuf->st_mode | (mode & ~psbuf->st_mode));
}
}
if (lp_inherit_owner(SNUM(conn))) {
change_dir_owner_to_parent(conn, parent_dir, name, psbuf);
}
notify_fname(conn, NOTIFY_ACTION_ADDED, FILE_NOTIFY_CHANGE_DIR_NAME,
name);
return NT_STATUS_OK;
}
NTSTATUS open_directory(connection_struct *conn,
const char *fname,
SMB_STRUCT_STAT *psbuf,
uint32 access_mask,
uint32 share_access,
uint32 create_disposition,
uint32 create_options,
uint32 file_attributes,
int *pinfo,
files_struct **result)
{
files_struct *fsp = NULL;
BOOL dir_existed = VALID_STAT(*psbuf) ? True : False;
struct share_mode_lock *lck = NULL;
NTSTATUS status;
int info = 0;
DEBUG(5,("open_directory: opening directory %s, access_mask = 0x%x, "
"share_access = 0x%x create_options = 0x%x, "
"create_disposition = 0x%x, file_attributes = 0x%x\n",
fname,
(unsigned int)access_mask,
(unsigned int)share_access,
(unsigned int)create_options,
(unsigned int)create_disposition,
(unsigned int)file_attributes));
if (is_ntfs_stream_name(fname)) {
DEBUG(0,("open_directory: %s is a stream name!\n", fname ));
return NT_STATUS_NOT_A_DIRECTORY;
}
switch( create_disposition ) {
case FILE_OPEN:
info = FILE_WAS_OPENED;
if (SMB_VFS_STAT(conn, fname, psbuf) != 0) {
return map_nt_error_from_unix(errno);
}
break;
case FILE_CREATE:
status = mkdir_internal(conn,
fname,
file_attributes,
psbuf);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(2, ("open_directory: unable to create "
"%s. Error was %s\n", fname,
nt_errstr(status)));
return status;
}
info = FILE_WAS_CREATED;
break;
case FILE_OPEN_IF:
status = mkdir_internal(conn,
fname,
file_attributes,
psbuf);
if (NT_STATUS_IS_OK(status)) {
info = FILE_WAS_CREATED;
}
if (NT_STATUS_EQUAL(status,
NT_STATUS_OBJECT_NAME_COLLISION)) {
info = FILE_WAS_OPENED;
status = NT_STATUS_OK;
}
break;
case FILE_SUPERSEDE:
case FILE_OVERWRITE:
case FILE_OVERWRITE_IF:
default:
DEBUG(5,("open_directory: invalid create_disposition "
"0x%x for directory %s\n",
(unsigned int)create_disposition, fname));
return NT_STATUS_INVALID_PARAMETER;
}
if(!S_ISDIR(psbuf->st_mode)) {
DEBUG(5,("open_directory: %s is not a directory !\n",
fname ));
return NT_STATUS_NOT_A_DIRECTORY;
}
status = file_new(conn, &fsp);
if(!NT_STATUS_IS_OK(status)) {
return status;
}
fsp->mode = psbuf->st_mode;
fsp->inode = psbuf->st_ino;
fsp->dev = psbuf->st_dev;
fsp->vuid = current_user.vuid;
fsp->file_pid = global_smbpid;
fsp->can_lock = False;
fsp->can_read = False;
fsp->can_write = False;
fsp->share_access = share_access;
fsp->fh->private_options = create_options;
fsp->access_mask = access_mask;
fsp->print_file = False;
fsp->modified = False;
fsp->oplock_type = NO_OPLOCK;
fsp->sent_oplock_break = NO_BREAK_SENT;
fsp->is_directory = True;
fsp->is_stat = False;
fsp->posix_open = (file_attributes & FILE_FLAG_POSIX_SEMANTICS) ? True : False;
string_set(&fsp->fsp_name,fname);
lck = get_share_mode_lock(NULL, fsp->dev, fsp->inode,
conn->connectpath,
fname);
if (lck == NULL) {
DEBUG(0, ("open_directory: Could not get share mode lock for %s\n", fname));
file_free(fsp);
return NT_STATUS_SHARING_VIOLATION;
}
status = open_mode_check(conn, fname, lck,
access_mask, share_access,
create_options, &dir_existed);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(lck);
file_free(fsp);
return status;
}
set_share_mode(lck, fsp, current_user.ut.uid, 0, NO_OPLOCK, True);
if (create_options & FILE_DELETE_ON_CLOSE) {
status = can_set_delete_on_close(fsp, True, 0);
if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status, NT_STATUS_DIRECTORY_NOT_EMPTY)) {
TALLOC_FREE(lck);
file_free(fsp);
return status;
}
if (NT_STATUS_IS_OK(status)) {
fsp->initial_delete_on_close = True;
}
}
TALLOC_FREE(lck);
if (pinfo) {
*pinfo = info;
}
conn->num_files_open++;
*result = fsp;
return NT_STATUS_OK;
}
NTSTATUS create_directory(connection_struct *conn, const char *directory)
{
NTSTATUS status;
SMB_STRUCT_STAT sbuf;
files_struct *fsp;
SET_STAT_INVALID(sbuf);
status = open_directory(conn, directory, &sbuf,
FILE_READ_ATTRIBUTES,
FILE_SHARE_NONE,
FILE_CREATE,
0,
FILE_ATTRIBUTE_DIRECTORY,
NULL,
&fsp);
if (NT_STATUS_IS_OK(status)) {
close_file(fsp, NORMAL_CLOSE);
}
return status;
}
NTSTATUS open_file_stat(connection_struct *conn, 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;
}
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));
fsp->mode = psbuf->st_mode;
fsp->inode = psbuf->st_ino;
fsp->dev = psbuf->st_dev;
fsp->vuid = current_user.vuid;
fsp->file_pid = global_smbpid;
fsp->can_lock = False;
fsp->can_read = False;
fsp->can_write = False;
fsp->print_file = False;
fsp->modified = False;
fsp->oplock_type = NO_OPLOCK;
fsp->sent_oplock_break = NO_BREAK_SENT;
fsp->is_directory = False;
fsp->is_stat = True;
string_set(&fsp->fsp_name,fname);
conn->num_files_open++;
*result = fsp;
return NT_STATUS_OK;
}
void msg_file_was_renamed(int msg_type, struct process_id src,
void *buf, size_t len, void *private_data)
{
files_struct *fsp;
char *frm = (char *)buf;
SMB_DEV_T dev;
SMB_INO_T inode;
const char *sharepath;
const char *newname;
size_t sp_len;
if (buf == NULL || len < MSG_FILE_RENAMED_MIN_SIZE + 2) {
DEBUG(0, ("msg_file_was_renamed: Got invalid msg len %d\n", (int)len));
return;
}
dev = DEV_T_VAL(frm,0);
inode = INO_T_VAL(frm,8);
sharepath = &frm[16];
newname = sharepath + strlen(sharepath) + 1;
sp_len = strlen(sharepath);
DEBUG(10,("msg_file_was_renamed: Got rename message for sharepath %s, new name %s, "
"dev %x, inode %.0f\n",
sharepath, newname, (unsigned int)dev, (double)inode ));
for(fsp = file_find_di_first(dev, inode); fsp; fsp = file_find_di_next(fsp)) {
if (memcmp(fsp->conn->connectpath, sharepath, sp_len) == 0) {
DEBUG(10,("msg_file_was_renamed: renaming file fnum %d from %s -> %s\n",
fsp->fnum, fsp->fsp_name, newname ));
string_set(&fsp->fsp_name, newname);
} else {
DEBUG(10,("msg_file_was_renamed: share mismatch (sharepath %s "
"not sharepath %s) "
"fnum %d from %s -> %s\n",
fsp->conn->connectpath,
sharepath,
fsp->fnum,
fsp->fsp_name,
newname ));
}
}
}