mirror of
https://github.com/samba-team/samba.git
synced 2024-12-24 21:34:56 +03:00
504 lines
13 KiB
C
504 lines
13 KiB
C
/*
|
|
* Convert JFS2 NFS4/AIXC acls to NT acls and vice versa.
|
|
*
|
|
* Copyright (C) Volker Lendecke, 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"
|
|
#include "nfs4_acls.h"
|
|
|
|
#undef DBGC_CLASS
|
|
#define DBGC_CLASS DBGC_VFS
|
|
|
|
#define AIXACL2_MODULE_NAME "aixacl2"
|
|
|
|
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);
|
|
|
|
typedef union aixjfs2_acl_t {
|
|
nfs4_acl_int_t jfs2_acl[1];
|
|
aixc_acl_t aixc_acl[1];
|
|
}AIXJFS2_ACL_T;
|
|
|
|
static int32_t aixacl2_getlen(AIXJFS2_ACL_T *acl, acl_type_t *type)
|
|
{
|
|
int32_t len;
|
|
|
|
if(type->u64 == ACL_NFS4) {
|
|
len = acl->jfs2_acl[0].aclLength;
|
|
}
|
|
else {
|
|
if(type->u64 == ACL_AIXC) {
|
|
len = acl->aixc_acl[0].acl_len;
|
|
} else {
|
|
DEBUG(0,("aixacl2_getlen:unknown type:%d\n",type->u64));
|
|
return False;
|
|
}
|
|
}
|
|
DEBUG(10,("aixacl2_getlen:%d\n",len));
|
|
return len;
|
|
}
|
|
|
|
static AIXJFS2_ACL_T *aixjfs2_getacl_alloc(const char *fname, acl_type_t *type)
|
|
{
|
|
AIXJFS2_ACL_T *acl;
|
|
size_t len = 200;
|
|
mode_t mode;
|
|
int ret;
|
|
uint64_t ctl_flag=0;
|
|
TALLOC_CTX *mem_ctx;
|
|
|
|
mem_ctx = talloc_tos();
|
|
acl = (AIXJFS2_ACL_T *)TALLOC_SIZE(mem_ctx, len);
|
|
if (acl == NULL) {
|
|
errno = ENOMEM;
|
|
return NULL;
|
|
}
|
|
|
|
if(type->u64 == ACL_ANY) {
|
|
ctl_flag = ctl_flag | GET_ACLINFO_ONLY;
|
|
}
|
|
|
|
ret = aclx_get((char *)fname, ctl_flag, type, acl, &len, &mode);
|
|
if ((ret != 0) && (errno == ENOSPC)) {
|
|
len = aixacl2_getlen(acl, type) + sizeof(AIXJFS2_ACL_T);
|
|
DEBUG(10,("aixjfs2_getacl_alloc - acl_len:%d\n",len));
|
|
|
|
acl = (AIXJFS2_ACL_T *)TALLOC_SIZE(mem_ctx, len);
|
|
if (acl == NULL) {
|
|
errno = ENOMEM;
|
|
return NULL;
|
|
}
|
|
|
|
ret = aclx_get((char *)fname, ctl_flag, type, acl, &len, &mode);
|
|
}
|
|
if (ret != 0) {
|
|
DEBUG(8, ("aclx_get failed with %s\n", strerror(errno)));
|
|
return NULL;
|
|
}
|
|
|
|
return acl;
|
|
}
|
|
|
|
static bool aixjfs2_get_nfs4_acl(const char *name,
|
|
SMB4ACL_T **ppacl, bool *pretryPosix)
|
|
{
|
|
int32_t i;
|
|
|
|
AIXJFS2_ACL_T *pacl = NULL;
|
|
nfs4_acl_int_t *jfs2_acl = NULL;
|
|
nfs4_ace_int_t *jfs2_ace = NULL;
|
|
acl_type_t type;
|
|
|
|
DEBUG(10,("jfs2 get_nt_acl invoked for %s\n", name));
|
|
|
|
memset(&type, 0, sizeof(acl_type_t));
|
|
type.u64 = ACL_NFS4;
|
|
|
|
pacl = aixjfs2_getacl_alloc(name, &type);
|
|
if (pacl == NULL) {
|
|
DEBUG(9, ("aixjfs2_getacl_alloc failed for %s with %s\n",
|
|
name, strerror(errno)));
|
|
if (errno==ENOSYS)
|
|
*pretryPosix = True;
|
|
return False;
|
|
}
|
|
|
|
jfs2_acl = &pacl->jfs2_acl[0];
|
|
DEBUG(10, ("len: %d, version: %d, nace: %d, type: 0x%x\n",
|
|
jfs2_acl->aclLength, jfs2_acl->aclVersion, jfs2_acl->aclEntryN, type.u64));
|
|
|
|
*ppacl = smb_create_smb4acl();
|
|
if (*ppacl==NULL)
|
|
return False;
|
|
|
|
jfs2_ace = &jfs2_acl->aclEntry[0];
|
|
for (i=0; i<jfs2_acl->aclEntryN; i++) {
|
|
SMB_ACE4PROP_T aceprop;
|
|
|
|
DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
|
|
"who: %d, aclLen: %d\n", jfs2_ace->aceType, jfs2_ace->flags,
|
|
jfs2_ace->aceFlags, jfs2_ace->aceMask, jfs2_ace->aceWho.id, jfs2_ace->entryLen));
|
|
|
|
aceprop.aceType = jfs2_ace->aceType;
|
|
aceprop.aceFlags = jfs2_ace->aceFlags;
|
|
aceprop.aceMask = jfs2_ace->aceMask;
|
|
aceprop.flags = (jfs2_ace->flags&ACE4_ID_SPECIAL) ? SMB_ACE4_ID_SPECIAL : 0;
|
|
|
|
/* don't care it's real content is only 16 or 32 bit */
|
|
aceprop.who.id = jfs2_ace->aceWho.id;
|
|
|
|
if (smb_add_ace4(*ppacl, &aceprop)==NULL)
|
|
return False;
|
|
|
|
/* iterate to the next jfs2 ace */
|
|
jfs2_ace = (nfs4_ace_int_t *)(((char *)jfs2_ace) + jfs2_ace->entryLen);
|
|
}
|
|
|
|
DEBUG(10,("jfs2 get_nt_acl finished successfully\n"));
|
|
|
|
return True;
|
|
}
|
|
|
|
static NTSTATUS aixjfs2_fget_nt_acl(vfs_handle_struct *handle,
|
|
files_struct *fsp, uint32 security_info,
|
|
SEC_DESC **ppdesc)
|
|
{
|
|
SMB4ACL_T *pacl = NULL;
|
|
bool result;
|
|
bool retryPosix = False;
|
|
|
|
*ppdesc = NULL;
|
|
result = aixjfs2_get_nfs4_acl(fsp->fsp_name->base_name, &pacl,
|
|
&retryPosix);
|
|
if (retryPosix)
|
|
{
|
|
DEBUG(10, ("retrying with posix acl...\n"));
|
|
return posix_fget_nt_acl(fsp, security_info, ppdesc);
|
|
}
|
|
if (result==False)
|
|
return NT_STATUS_ACCESS_DENIED;
|
|
|
|
return smb_fget_nt_acl_nfs4(fsp, security_info, ppdesc, pacl);
|
|
}
|
|
|
|
static NTSTATUS aixjfs2_get_nt_acl(vfs_handle_struct *handle,
|
|
const char *name,
|
|
uint32 security_info, SEC_DESC **ppdesc)
|
|
{
|
|
SMB4ACL_T *pacl = NULL;
|
|
bool result;
|
|
bool retryPosix = False;
|
|
|
|
*ppdesc = NULL;
|
|
result = aixjfs2_get_nfs4_acl(name, &pacl, &retryPosix);
|
|
if (retryPosix)
|
|
{
|
|
DEBUG(10, ("retrying with posix acl...\n"));
|
|
return posix_get_nt_acl(handle->conn, name, security_info,
|
|
ppdesc);
|
|
}
|
|
if (result==False)
|
|
return NT_STATUS_ACCESS_DENIED;
|
|
|
|
return smb_get_nt_acl_nfs4(handle->conn, name, security_info, ppdesc,
|
|
pacl);
|
|
}
|
|
|
|
static SMB_ACL_T aixjfs2_get_posix_acl(const char *path, acl_type_t type)
|
|
{
|
|
aixc_acl_t *pacl;
|
|
AIXJFS2_ACL_T *acl;
|
|
SMB_ACL_T result = NULL;
|
|
int ret;
|
|
|
|
acl = aixjfs2_getacl_alloc(path, &type);
|
|
|
|
if (acl == NULL) {
|
|
DEBUG(10, ("aixjfs2_getacl failed for %s with %s\n",
|
|
path, strerror(errno)));
|
|
if (errno == 0) {
|
|
errno = EINVAL;
|
|
}
|
|
goto done;
|
|
}
|
|
|
|
pacl = &acl->aixc_acl[0];
|
|
DEBUG(10, ("len: %d, mode: %d\n",
|
|
pacl->acl_len, pacl->acl_mode));
|
|
|
|
result = aixacl_to_smbacl(pacl);
|
|
if (result == NULL) {
|
|
goto done;
|
|
}
|
|
|
|
done:
|
|
if (errno != 0) {
|
|
SAFE_FREE(result);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
SMB_ACL_T aixjfs2_sys_acl_get_file(vfs_handle_struct *handle,
|
|
const char *path_p,
|
|
SMB_ACL_TYPE_T type)
|
|
{
|
|
acl_type_t aixjfs2_type;
|
|
|
|
switch(type) {
|
|
case SMB_ACL_TYPE_ACCESS:
|
|
aixjfs2_type.u64 = ACL_AIXC;
|
|
break;
|
|
case SMB_ACL_TYPE_DEFAULT:
|
|
DEBUG(0, ("Got AIX JFS2 unsupported type: %d\n", type));
|
|
return NULL;
|
|
default:
|
|
DEBUG(0, ("Got invalid type: %d\n", type));
|
|
smb_panic("exiting");
|
|
}
|
|
|
|
return aixjfs2_get_posix_acl(path_p, aixjfs2_type);
|
|
}
|
|
|
|
SMB_ACL_T aixjfs2_sys_acl_get_fd(vfs_handle_struct *handle,
|
|
files_struct *fsp)
|
|
{
|
|
acl_type_t aixjfs2_type;
|
|
aixjfs2_type.u64 = ACL_AIXC;
|
|
|
|
return aixjfs2_get_posix_acl(fsp->fsp_name->base_name, aixjfs2_type);
|
|
}
|
|
|
|
/*
|
|
* Test whether we have that aclType support on the given path
|
|
*/
|
|
static int aixjfs2_query_acl_support(
|
|
char *filepath,
|
|
uint64_t aclType,
|
|
acl_type_t *pacl_type_info
|
|
)
|
|
{
|
|
acl_types_list_t acl_type_list;
|
|
size_t acl_type_list_len = sizeof(acl_types_list_t);
|
|
uint32_t i;
|
|
|
|
memset(&acl_type_list, 0, sizeof(acl_type_list));
|
|
|
|
if (aclx_gettypes(filepath, &acl_type_list, &acl_type_list_len)) {
|
|
DEBUG(2, ("aclx_gettypes failed with error %s for %s\n",
|
|
strerror(errno), filepath));
|
|
return -1;
|
|
}
|
|
|
|
for(i=0; i<acl_type_list.num_entries; i++) {
|
|
if (acl_type_list.entries[i].u64==aclType) {
|
|
memcpy(pacl_type_info, acl_type_list.entries + i, sizeof(acl_type_t));
|
|
DEBUG(10, ("found %s ACL support for %s\n",
|
|
pacl_type_info->acl_type, filepath));
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 1; /* haven't found that ACL type. */
|
|
}
|
|
|
|
static bool aixjfs2_process_smbacl(files_struct *fsp, SMB4ACL_T *smbacl)
|
|
{
|
|
SMB4ACE_T *smbace;
|
|
TALLOC_CTX *mem_ctx;
|
|
nfs4_acl_int_t *jfs2acl;
|
|
int32_t entryLen;
|
|
uint32 aclLen, naces;
|
|
int rc;
|
|
acl_type_t acltype;
|
|
|
|
DEBUG(10, ("jfs2_process_smbacl invoked on %s\n", fsp_str_dbg(fsp)));
|
|
|
|
/* no need to be freed which is alloced with mem_ctx */
|
|
mem_ctx = talloc_tos();
|
|
|
|
entryLen = sizeof(nfs4_ace_int_t);
|
|
if (entryLen & 0x03)
|
|
entryLen = entryLen + 4 - (entryLen%4);
|
|
|
|
naces = smb_get_naces(smbacl);
|
|
aclLen = ACL_V4_SIZ + naces * entryLen;
|
|
jfs2acl = (nfs4_acl_int_t *)TALLOC_SIZE(mem_ctx, aclLen);
|
|
if (jfs2acl==NULL) {
|
|
DEBUG(0, ("TALLOC_SIZE failed\n"));
|
|
errno = ENOMEM;
|
|
return False;
|
|
}
|
|
|
|
jfs2acl->aclLength = ACL_V4_SIZ;
|
|
jfs2acl->aclVersion = NFS4_ACL_INT_STRUCT_VERSION;
|
|
jfs2acl->aclEntryN = 0;
|
|
|
|
for(smbace = smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace))
|
|
{
|
|
SMB_ACE4PROP_T *aceprop = smb_get_ace4(smbace);
|
|
nfs4_ace_int_t *jfs2_ace = (nfs4_ace_int_t *)(((char *)jfs2acl) + jfs2acl->aclLength);
|
|
|
|
memset(jfs2_ace, 0, entryLen);
|
|
jfs2_ace->entryLen = entryLen; /* won't store textual "who" */
|
|
jfs2_ace->aceType = aceprop->aceType; /* only ACCES|DENY supported by jfs2 */
|
|
jfs2_ace->aceFlags = aceprop->aceFlags;
|
|
jfs2_ace->aceMask = aceprop->aceMask;
|
|
jfs2_ace->flags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_ID_SPECIAL : 0;
|
|
|
|
/* don't care it's real content is only 16 or 32 bit */
|
|
jfs2_ace->aceWho.id = aceprop->who.id;
|
|
|
|
/* iterate to the next jfs2 ace */
|
|
jfs2acl->aclLength += jfs2_ace->entryLen;
|
|
jfs2acl->aclEntryN++;
|
|
}
|
|
SMB_ASSERT(jfs2acl->aclEntryN==naces);
|
|
|
|
/* Don't query it (again) */
|
|
memset(&acltype, 0, sizeof(acl_type_t));
|
|
acltype.u64 = ACL_NFS4;
|
|
|
|
/* won't set S_ISUID - the only one JFS2/NFS4 accepts */
|
|
rc = aclx_put(
|
|
fsp->fsp_name->base_name,
|
|
SET_ACL, /* set only the ACL, not mode bits */
|
|
acltype, /* not a pointer !!! */
|
|
jfs2acl,
|
|
jfs2acl->aclLength,
|
|
0 /* don't set here mode bits */
|
|
);
|
|
if (rc) {
|
|
DEBUG(8, ("aclx_put failed with %s\n", strerror(errno)));
|
|
return False;
|
|
}
|
|
|
|
DEBUG(10, ("jfs2_process_smbacl succeeded.\n"));
|
|
return True;
|
|
}
|
|
|
|
static NTSTATUS aixjfs2_set_nt_acl_common(files_struct *fsp, uint32 security_info_sent, const SEC_DESC *psd)
|
|
{
|
|
acl_type_t acl_type_info;
|
|
NTSTATUS result = NT_STATUS_ACCESS_DENIED;
|
|
int rc;
|
|
|
|
rc = aixjfs2_query_acl_support(
|
|
fsp->fsp_name,
|
|
ACL_NFS4,
|
|
&acl_type_info);
|
|
|
|
if (rc==0)
|
|
{
|
|
result = smb_set_nt_acl_nfs4(
|
|
fsp, security_info_sent, psd,
|
|
aixjfs2_process_smbacl);
|
|
} else if (rc==1) { /* assume POSIX ACL - by default... */
|
|
result = set_nt_acl(fsp, security_info_sent, psd);
|
|
} else
|
|
result = map_nt_error_from_unix(errno); /* query failed */
|
|
|
|
return result;
|
|
}
|
|
|
|
NTSTATUS aixjfs2_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, uint32 security_info_sent, const SEC_DESC *psd)
|
|
{
|
|
return aixjfs2_set_nt_acl_common(fsp, security_info_sent, psd);
|
|
}
|
|
|
|
int aixjfs2_sys_acl_set_file(vfs_handle_struct *handle,
|
|
const char *name,
|
|
SMB_ACL_TYPE_T type,
|
|
SMB_ACL_T theacl)
|
|
{
|
|
struct acl *acl_aixc;
|
|
acl_type_t acl_type_info;
|
|
int rc;
|
|
|
|
DEBUG(10, ("aixjfs2_sys_acl_set_file invoked for %s", name));
|
|
|
|
rc = aixjfs2_query_acl_support((char *)name, ACL_AIXC, &acl_type_info);
|
|
if (rc) {
|
|
DEBUG(8, ("jfs2_set_nt_acl: AIXC support not found\n"));
|
|
return -1;
|
|
}
|
|
|
|
acl_aixc = aixacl_smb_to_aixacl(type, theacl);
|
|
if (!acl_aixc)
|
|
return -1;
|
|
|
|
rc = aclx_put(
|
|
(char *)name,
|
|
SET_ACL, /* set only the ACL, not mode bits */
|
|
acl_type_info,
|
|
acl_aixc,
|
|
acl_aixc->acl_len,
|
|
0
|
|
);
|
|
if (rc) {
|
|
DEBUG(2, ("aclx_put failed with %s for %s\n",
|
|
strerror(errno), name));
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int aixjfs2_sys_acl_set_fd(vfs_handle_struct *handle,
|
|
files_struct *fsp,
|
|
SMB_ACL_T theacl)
|
|
{
|
|
struct acl *acl_aixc;
|
|
acl_type_t acl_type_info;
|
|
int rc;
|
|
|
|
DEBUG(10, ("aixjfs2_sys_acl_set_fd invoked for %s", fsp_str_dbg(fsp)));
|
|
|
|
rc = aixjfs2_query_acl_support(fsp->fsp_name->base_name, ACL_AIXC,
|
|
&acl_type_info);
|
|
if (rc) {
|
|
DEBUG(8, ("jfs2_set_nt_acl: AIXC support not found\n"));
|
|
return -1;
|
|
}
|
|
|
|
acl_aixc = aixacl_smb_to_aixacl(SMB_ACL_TYPE_ACCESS, theacl);
|
|
if (!acl_aixc)
|
|
return -1;
|
|
|
|
rc = aclx_fput(
|
|
fsp->fh->fd,
|
|
SET_ACL, /* set only the ACL, not mode bits */
|
|
acl_type_info,
|
|
acl_aixc,
|
|
acl_aixc->acl_len,
|
|
0
|
|
);
|
|
if (rc) {
|
|
DEBUG(2, ("aclx_fput failed with %s for %s\n",
|
|
strerror(errno), fsp_str_dbg(fsp)));
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int aixjfs2_sys_acl_delete_def_file(vfs_handle_struct *handle,
|
|
const char *path)
|
|
{
|
|
/* Not available under AIXC ACL */
|
|
/* Don't report here any error otherwise */
|
|
/* upper layer will break the normal execution */
|
|
return 0;
|
|
}
|
|
|
|
static struct vfs_fn_pointers vfs_aixacl2_fns = {
|
|
.fget_nt_acl = aixjfs2_fget_nt_acl,
|
|
.get_nt_acl = aixjfs2_get_nt_acl,
|
|
.fset_nt_acl = aixjfs2_fset_nt_acl,
|
|
.sys_acl_get_file = aixjfs2_sys_acl_get_file,
|
|
.sys_acl_get_fd = aixjfs2_sys_acl_get_fd,
|
|
.sys_acl_set_file = aixjfs2_sys_acl_set_file,
|
|
.sys_acl_set_fd = aixjfs2_sys_acl_set_fd,
|
|
.sys_acl_delete_def_file = aixjfs2_sys_acl_delete_def_file
|
|
}
|
|
|
|
NTSTATUS vfs_aixacl2_init(void);
|
|
NTSTATUS vfs_aixacl2_init(void)
|
|
{
|
|
return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, AIXACL2_MODULE_NAME,
|
|
&vfs_aixacl2_fns);
|
|
}
|