struct smbacl4_vfs_params nfs4_params;
bool zfsacl_map_dacl_protected;
bool zfsacl_denymissingspecial;
+ bool zfsacl_block_special;
};
/* zfs_get_nt_acl()
static NTSTATUS zfs_get_nt_acl_common(struct connection_struct *conn,
TALLOC_CTX *mem_ctx,
const struct smb_filename *smb_fname,
+ const ace_t *acebuf,
+ int naces,
struct SMB4ACL_T **ppacl,
struct zfsacl_config_data *config)
{
- int naces, i;
- ace_t *acebuf;
+ int i;
struct SMB4ACL_T *pacl;
SMB_STRUCT_STAT sbuf;
const SMB_STRUCT_STAT *psbuf = NULL;
}
is_dir = S_ISDIR(psbuf->st_ex_mode);
- /* read the number of file aces */
- if((naces = acl(smb_fname->base_name, ACE_GETACLCNT, 0, NULL)) == -1) {
- if(errno == ENOSYS) {
- DEBUG(9, ("acl(ACE_GETACLCNT, %s): Operation is not "
- "supported on the filesystem where the file "
- "reside\n", smb_fname->base_name));
- } else {
- DEBUG(9, ("acl(ACE_GETACLCNT, %s): %s ", smb_fname->base_name,
- strerror(errno)));
- }
- return map_nt_error_from_unix(errno);
- }
- /* allocate the field of ZFS aces */
mem_ctx = talloc_tos();
- acebuf = (ace_t *) talloc_size(mem_ctx, sizeof(ace_t)*naces);
- if(acebuf == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
- /* read the aces into the field */
- if(acl(smb_fname->base_name, ACE_GETACL, naces, acebuf) < 0) {
- DEBUG(9, ("acl(ACE_GETACL, %s): %s ", smb_fname->base_name,
- strerror(errno)));
- return map_nt_error_from_unix(errno);
- }
+
/* create SMB4ACL data */
if((pacl = smb_create_smb4acl(mem_ctx)) == NULL) {
return NT_STATUS_NO_MEMORY;
}
for(i=0; i<naces; i++) {
SMB_ACE4PROP_T aceprop;
+ uint16_t special = 0;
aceprop.aceType = (uint32_t) acebuf[i].a_type;
aceprop.aceFlags = (uint32_t) acebuf[i].a_flags;
aceprop.aceMask = (uint32_t) acebuf[i].a_access_mask;
aceprop.who.id = (uint32_t) acebuf[i].a_who;
+ if (config->zfsacl_block_special &&
+ (aceprop.aceMask == 0) &&
+ (aceprop.aceFlags & ACE_EVERYONE) &&
+ (aceprop.aceFlags & ACE_INHERITED_ACE))
+ {
+ continue;
+ }
/*
* Windows clients expect SYNC on acls to correctly allow
* rename, cf bug #7909. But not on DENY ace entries, cf bug
aceprop.aceMask |= SMB_ACE4_SYNCHRONIZE;
}
- if (is_dir && (aceprop.aceMask & SMB_ACE4_ADD_FILE)) {
+ special = acebuf[i].a_flags & (ACE_OWNER|ACE_GROUP|ACE_EVERYONE);
+
+ if (is_dir &&
+ (aceprop.aceMask & SMB_ACE4_ADD_FILE) &&
+ (special != 0))
+ {
aceprop.aceMask |= SMB_ACE4_DELETE_CHILD;
}
inherited_is_present = true;
}
#endif
- if(aceprop.aceFlags & ACE_OWNER) {
+ switch(special) {
+ case(ACE_OWNER):
aceprop.flags = SMB_ACE4_ID_SPECIAL;
aceprop.who.special_id = SMB_ACE4_WHO_OWNER;
- } else if(aceprop.aceFlags & ACE_GROUP) {
+ break;
+ case(ACE_GROUP):
aceprop.flags = SMB_ACE4_ID_SPECIAL;
aceprop.who.special_id = SMB_ACE4_WHO_GROUP;
- } else if(aceprop.aceFlags & ACE_EVERYONE) {
+ break;
+ case(ACE_EVERYONE):
aceprop.flags = SMB_ACE4_ID_SPECIAL;
aceprop.who.special_id = SMB_ACE4_WHO_EVERYONE;
- } else {
+ break;
+ default:
aceprop.flags = 0;
}
- if(smb_add_ace4(pacl, &aceprop) == NULL)
+ if (smb_add_ace4(pacl, &aceprop) == NULL) {
return NT_STATUS_NO_MEMORY;
+ }
}
#ifdef ACE_INHERITED_ACE
static bool zfs_process_smbacl(vfs_handle_struct *handle, files_struct *fsp,
struct SMB4ACL_T *smbacl)
{
- int naces = smb_get_naces(smbacl), i;
+ int naces = smb_get_naces(smbacl), i, rv;
ace_t *acebuf;
struct SMB4ACE_T *smbace;
TALLOC_CTX *mem_ctx;
bool have_special_id = false;
+ bool must_add_empty_ace = false;
struct zfsacl_config_data *config = NULL;
+ int fd;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct zfsacl_config_data,
return False);
+ if (config->zfsacl_block_special && S_ISDIR(fsp->fsp_name->st.st_ex_mode)) {
+ naces++;
+ must_add_empty_ace = true;
+ }
/* allocate the field of ZFS aces */
mem_ctx = talloc_tos();
acebuf = (ace_t *) talloc_size(mem_ctx, sizeof(ace_t)*naces);
have_special_id = true;
}
}
+ if (must_add_empty_ace) {
+ acebuf[i].a_type = SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE;
+ acebuf[i].a_flags = SMB_ACE4_DIRECTORY_INHERIT_ACE |
+ SMB_ACE4_FILE_INHERIT_ACE |
+ ACE_EVERYONE |
+ ACE_INHERITED_ACE;
+ acebuf[i].a_access_mask = 0;
+ i++;
+ }
if (!have_special_id && config->zfsacl_denymissingspecial) {
errno = EACCES;
SMB_ASSERT(i == naces);
/* store acl */
- if(acl(fsp->fsp_name->base_name, ACE_SETACL, naces, acebuf)) {
+ fd = fsp_get_pathref_fd(fsp);
+ if (fd == -1) {
+ errno = EBADF;
+ return false;
+ }
+ rv = facl(fd, ACE_SETACL, naces, acebuf);
+ if (rv != 0) {
if(errno == ENOSYS) {
DEBUG(9, ("acl(ACE_SETACL, %s): Operation is not "
"supported on the filesystem where the file "
- "reside", fsp_str_dbg(fsp)));
+ "resides\n", fsp_str_dbg(fsp)));
} else {
- DEBUG(9, ("acl(ACE_SETACL, %s): %s ", fsp_str_dbg(fsp),
+ DEBUG(9, ("acl(ACE_SETACL, %s): %s\n", fsp_str_dbg(fsp),
strerror(errno)));
}
- return 0;
+ return false;
}
return True;
zfs_process_smbacl);
}
+static int fget_zfsacl(TALLOC_CTX *mem_ctx,
+ struct files_struct *fsp,
+ ace_t **outbuf)
+{
+ int naces, rv;
+ ace_t *acebuf = NULL;
+ int fd;
+
+ fd = fsp_get_pathref_fd(fsp);
+ if (fd == -1) {
+ errno = EBADF;
+ return -1;
+ }
+ naces = facl(fd, ACE_GETACLCNT, 0, NULL);
+ if (naces == -1) {
+ int dbg_level = 10;
+
+ if (errno == ENOSYS) {
+ dbg_level = 1;
+ }
+ DEBUG(dbg_level, ("facl(ACE_GETACLCNT, %s): %s\n",
+ fsp_str_dbg(fsp), strerror(errno)));
+ return naces;
+ }
+
+ acebuf = talloc_size(mem_ctx, sizeof(ace_t)*naces);
+ if (acebuf == NULL) {
+ errno = ENOMEM;
+ return -1;
+ }
+
+ rv = facl(fd, ACE_GETACL, naces, acebuf);
+ if (rv == -1) {
+ DBG_DEBUG("acl(ACE_GETACL, %s): %s\n",
+ fsp_str_dbg(fsp), strerror(errno));
+ return -1;
+ }
+
+ *outbuf = acebuf;
+ return naces;
+}
+
static NTSTATUS zfsacl_fget_nt_acl(struct vfs_handle_struct *handle,
struct files_struct *fsp,
uint32_t security_info,
TALLOC_CTX *mem_ctx,
struct security_descriptor **ppdesc)
{
+ TALLOC_CTX *frame = NULL;
struct SMB4ACL_T *pacl;
NTSTATUS status;
struct zfsacl_config_data *config = NULL;
+ ace_t *acebuf = NULL;
+ int naces;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct zfsacl_config_data,
return NT_STATUS_INTERNAL_ERROR);
- TALLOC_CTX *frame = talloc_stackframe();
+ frame = talloc_stackframe();
- status = zfs_get_nt_acl_common(handle->conn, frame,
- fsp->fsp_name, &pacl, config);
- if (!NT_STATUS_IS_OK(status)) {
+ naces = fget_zfsacl(talloc_tos(), fsp, &acebuf);
+ if (naces == -1) {
+ status = map_nt_error_from_unix(errno);
TALLOC_FREE(frame);
if (!NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)) {
return status;
return NT_STATUS_OK;
}
- status = smb_fget_nt_acl_nfs4(fsp, NULL, security_info, mem_ctx,
- ppdesc, pacl);
- TALLOC_FREE(frame);
- return status;
-}
-
-static NTSTATUS zfsacl_get_nt_acl_at(struct vfs_handle_struct *handle,
- struct files_struct *dirfsp,
- const struct smb_filename *smb_fname,
- uint32_t security_info,
- TALLOC_CTX *mem_ctx,
- struct security_descriptor **ppdesc)
-{
- struct SMB4ACL_T *pacl = NULL;
- NTSTATUS status;
- struct zfsacl_config_data *config = NULL;
- TALLOC_CTX *frame = NULL;
-
- SMB_ASSERT(dirfsp == handle->conn->cwd_fsp);
-
- SMB_VFS_HANDLE_GET_DATA(handle,
- config,
- struct zfsacl_config_data,
- return NT_STATUS_INTERNAL_ERROR);
-
- frame = talloc_stackframe();
-
status = zfs_get_nt_acl_common(handle->conn,
- frame,
- smb_fname,
- &pacl,
- config);
+ frame,
+ fsp->fsp_name,
+ acebuf,
+ naces,
+ &pacl,
+ config);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(frame);
- if (!NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)) {
- return status;
- }
-
- if (!VALID_STAT(smb_fname->st)) {
- DBG_ERR("No stat info for [%s]\n",
- smb_fname_str_dbg(smb_fname));
- return NT_STATUS_INTERNAL_ERROR;
- }
-
- status = make_default_filesystem_acl(mem_ctx,
- DEFAULT_ACL_POSIX,
- smb_fname->base_name,
- &smb_fname->st,
- ppdesc);
- if (!NT_STATUS_IS_OK(status)) {
- return status;
- }
- (*ppdesc)->type |= SEC_DESC_DACL_PROTECTED;
- return NT_STATUS_OK;
+ return status;
}
- status = smb_get_nt_acl_nfs4(handle->conn,
- smb_fname,
- NULL,
- security_info,
- mem_ctx,
- ppdesc,
- pacl);
+ status = smb_fget_nt_acl_nfs4(fsp, NULL, security_info, mem_ctx,
+ ppdesc, pacl);
TALLOC_FREE(frame);
return status;
}
Function declarations taken from vfs_solarisacl
*/
-static SMB_ACL_T zfsacl_fail__sys_acl_get_file(vfs_handle_struct *handle,
- const struct smb_filename *smb_fname,
- SMB_ACL_TYPE_T type,
- TALLOC_CTX *mem_ctx)
-{
- return (SMB_ACL_T)NULL;
-}
-
static SMB_ACL_T zfsacl_fail__sys_acl_get_fd(vfs_handle_struct *handle,
files_struct *fsp,
+ SMB_ACL_TYPE_T type,
TALLOC_CTX *mem_ctx)
{
return (SMB_ACL_T)NULL;
}
-static int zfsacl_fail__sys_acl_set_file(vfs_handle_struct *handle,
- const struct smb_filename *smb_fname,
- SMB_ACL_TYPE_T type,
- SMB_ACL_T theacl)
-{
- return -1;
-}
-
static int zfsacl_fail__sys_acl_set_fd(vfs_handle_struct *handle,
files_struct *fsp,
+ SMB_ACL_TYPE_T type,
SMB_ACL_T theacl)
{
return -1;
}
-static int zfsacl_fail__sys_acl_delete_def_file(vfs_handle_struct *handle,
- const struct smb_filename *smb_fname)
-{
- return -1;
-}
-
-static int zfsacl_fail__sys_acl_blob_get_file(vfs_handle_struct *handle,
- const struct smb_filename *smb_fname,
- TALLOC_CTX *mem_ctx,
- char **blob_description,
- DATA_BLOB *blob)
+static int zfsacl_fail__sys_acl_delete_def_fd(vfs_handle_struct *handle,
+ files_struct *fsp)
{
return -1;
}
config->zfsacl_denymissingspecial = lp_parm_bool(SNUM(handle->conn),
"zfsacl", "denymissingspecial", false);
+ config->zfsacl_block_special = lp_parm_bool(SNUM(handle->conn),
+ "zfsacl", "block_special", true);
+
ret = smbacl4_get_vfs_params(handle->conn, &config->nfs4_params);
if (ret < 0) {
TALLOC_FREE(config);
static struct vfs_fn_pointers zfsacl_fns = {
.connect_fn = zfsacl_connect,
- .sys_acl_get_file_fn = zfsacl_fail__sys_acl_get_file,
+ .stat_fn = nfs4_acl_stat,
+ .fstat_fn = nfs4_acl_fstat,
+ .lstat_fn = nfs4_acl_lstat,
+ .fstatat_fn = nfs4_acl_fstatat,
.sys_acl_get_fd_fn = zfsacl_fail__sys_acl_get_fd,
- .sys_acl_blob_get_file_fn = zfsacl_fail__sys_acl_blob_get_file,
.sys_acl_blob_get_fd_fn = zfsacl_fail__sys_acl_blob_get_fd,
- .sys_acl_set_file_fn = zfsacl_fail__sys_acl_set_file,
.sys_acl_set_fd_fn = zfsacl_fail__sys_acl_set_fd,
- .sys_acl_delete_def_file_fn = zfsacl_fail__sys_acl_delete_def_file,
+ .sys_acl_delete_def_fd_fn = zfsacl_fail__sys_acl_delete_def_fd,
.fget_nt_acl_fn = zfsacl_fget_nt_acl,
- .get_nt_acl_at_fn = zfsacl_get_nt_acl_at,
.fset_nt_acl_fn = zfsacl_fset_nt_acl,
};