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/*
Unix SMB/Netbios implementation.
VFS module to get and set posix acls
Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2006
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
extern SMB_ACL_T aixacl_to_smbacl( struct acl *file_acl);
extern struct acl *aixacl_smb_to_aixacl(SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl);
SMB_ACL_T aixacl_sys_acl_get_file(vfs_handle_struct *handle,
const char *path_p,
SMB_ACL_TYPE_T type)
{
struct acl *file_acl = (struct acl *)NULL;
struct smb_acl_t *result = (struct smb_acl_t *)NULL;
int rc = 0;
uid_t user_id;
/* AIX has no DEFAULT */
if ( type == SMB_ACL_TYPE_DEFAULT )
return NULL;
/* Get the acl using statacl */
DEBUG(10,("Entering AIX sys_acl_get_file\n"));
DEBUG(10,("path_p is %s\n",path_p));
file_acl = (struct acl *)SMB_MALLOC(BUFSIZ);
if(file_acl == NULL) {
errno=ENOMEM;
DEBUG(0,("Error in AIX sys_acl_get_file: %d\n",errno));
return(NULL);
}
memset(file_acl,0,BUFSIZ);
rc = statacl((char *)path_p,0,file_acl,BUFSIZ);
if( (rc == -1) && (errno == ENOSPC)) {
struct acl *new_acl = SMB_MALLOC(file_acl->acl_len + sizeof(struct acl));
if( new_acl == NULL) {
SAFE_FREE(file_acl);
errno = ENOMEM;
return NULL;
}
file_acl = new_acl;
rc = statacl((char *)path_p,0,file_acl,file_acl->acl_len+sizeof(struct acl));
if( rc == -1) {
DEBUG(0,("statacl returned %d with errno %d\n",rc,errno));
SAFE_FREE(file_acl);
return(NULL);
}
}
DEBUG(10,("Got facl and returned it\n"));
result = aixacl_to_smbacl(file_acl);
SAFE_FREE(file_acl);
return result;
/*errno = ENOTSUP;
return NULL;*/
}
SMB_ACL_T aixacl_sys_acl_get_fd(vfs_handle_struct *handle,
files_struct *fsp,
int fd)
{
struct acl *file_acl = (struct acl *)NULL;
struct smb_acl_t *result = (struct smb_acl_t *)NULL;
int rc = 0;
uid_t user_id;
/* Get the acl using fstatacl */
DEBUG(10,("Entering AIX sys_acl_get_fd\n"));
DEBUG(10,("fd is %d\n",fd));
file_acl = (struct acl *)SMB_MALLOC(BUFSIZ);
if(file_acl == NULL) {
errno=ENOMEM;
DEBUG(0,("Error in AIX sys_acl_get_fd is %d\n",errno));
return(NULL);
}
memset(file_acl,0,BUFSIZ);
rc = fstatacl(fd,0,file_acl,BUFSIZ);
if( (rc == -1) && (errno == ENOSPC)) {
struct acl *new_acl = SMB_MALLOC(file_acl->acl_len + sizeof(struct acl));
if( new_acl == NULL) {
SAFE_FREE(file_acl);
errno = ENOMEM;
return NULL;
}
file_acl = new_acl;
rc = fstatacl(fd,0,file_acl,file_acl->acl_len + sizeof(struct acl));
if( rc == -1) {
DEBUG(0,("fstatacl returned %d with errno %d\n",rc,errno));
SAFE_FREE(file_acl);
return(NULL);
}
}
DEBUG(10,("Got facl and returned it\n"));
result = aixacl_to_smbacl(file_acl);
SAFE_FREE(file_acl);
return result;
/*errno = ENOTSUP;
return NULL;*/
}
int aixacl_sys_acl_set_file(vfs_handle_struct *handle,
const char *name,
SMB_ACL_TYPE_T type,
SMB_ACL_T theacl)
{
struct acl *file_acl = NULL;
unsigned int rc;
file_acl = aixacl_smb_to_aixacl(type, theacl);
if (!file_acl)
return -1;
rc = chacl((char *)name,file_acl,file_acl->acl_len);
DEBUG(10,("errno is %d\n",errno));
DEBUG(10,("return code is %d\n",rc));
SAFE_FREE(file_acl);
DEBUG(10,("Exiting the aixacl_sys_acl_set_file\n"));
return rc;
}
int aixacl_sys_acl_set_fd(vfs_handle_struct *handle,
files_struct *fsp,
int fd, SMB_ACL_T theacl)
{
struct acl *file_acl = NULL;
unsigned int rc;
file_acl = aixacl_smb_to_aixacl(SMB_ACL_TYPE_ACCESS, theacl);
if (!file_acl)
return -1;
rc = fchacl(fd,file_acl,file_acl->acl_len);
DEBUG(10,("errno is %d\n",errno));
DEBUG(10,("return code is %d\n",rc));
SAFE_FREE(file_acl);
DEBUG(10,("Exiting aixacl_sys_acl_set_fd\n"));
return rc;
}
int aixacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
const char *path)
{
return 0; /* otherwise you can't set acl at upper level */
}
/* VFS operations structure */
static vfs_op_tuple aixacl_op_tuples[] = {
/* Disk operations */
{SMB_VFS_OP(aixacl_sys_acl_get_file),
SMB_VFS_OP_SYS_ACL_GET_FILE,
SMB_VFS_LAYER_TRANSPARENT},
{SMB_VFS_OP(aixacl_sys_acl_get_fd),
SMB_VFS_OP_SYS_ACL_GET_FD,
SMB_VFS_LAYER_TRANSPARENT},
{SMB_VFS_OP(aixacl_sys_acl_set_file),
SMB_VFS_OP_SYS_ACL_SET_FILE,
SMB_VFS_LAYER_TRANSPARENT},
{SMB_VFS_OP(aixacl_sys_acl_set_fd),
SMB_VFS_OP_SYS_ACL_SET_FD,
SMB_VFS_LAYER_TRANSPARENT},
{SMB_VFS_OP(aixacl_sys_acl_delete_def_file),
SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE,
SMB_VFS_LAYER_TRANSPARENT},
{SMB_VFS_OP(NULL),
SMB_VFS_OP_NOOP,
SMB_VFS_LAYER_NOOP}
};
NTSTATUS vfs_aixacl_init(void);
NTSTATUS vfs_aixacl_init(void)
{
return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "aixacl",
aixacl_op_tuples);
}
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