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reactos/base/services/nfsd/acl.c
Timo Kreuzer 0c2cdcae83 [REACTOS] Add missing line breaks at end of file
2024-10-06 10:47:11 +03:00

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/* NFSv4.1 client for Windows
* Copyright © 2012 The Regents of the University of Michigan
*
* Olga Kornievskaia <aglo@umich.edu>
* Casey Bodley <cbodley@umich.edu>
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at
* your option) any later version.
*
* This library 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA
*/
#include <windows.h>
#include <strsafe.h>
#include <sddl.h>
#include "nfs41_ops.h"
#include "delegation.h"
#include "daemon_debug.h"
#include "util.h"
#include "upcall.h"
#include "nfs41_xdr.h"
//#define DEBUG_ACLS
#define ACLLVL 2 /* dprintf level for acl logging */
extern char localdomain_name[NFS41_HOSTNAME_LEN];
static int parse_getacl(unsigned char *buffer, uint32_t length,
nfs41_upcall *upcall)
{
int status;
getacl_upcall_args *args = &upcall->args.getacl;
status = safe_read(&buffer, &length, &args->query, sizeof(args->query));
if (status) goto out;
dprintf(1, "parsing NFS41_ACL_QUERY: info_class=%d\n", args->query);
out:
return status;
}
static int create_unknownsid(WELL_KNOWN_SID_TYPE type, PSID *sid,
DWORD *sid_len)
{
int status;
*sid_len = 0;
*sid = NULL;
status = CreateWellKnownSid(type, NULL, *sid, sid_len);
dprintf(ACLLVL, "create_unknownsid: CreateWellKnownSid type %d returned %d "
"GetLastError %d sid len %d needed\n", type, status,
GetLastError(), *sid_len);
if (status)
return ERROR_INTERNAL_ERROR;
status = GetLastError();
if (status != ERROR_INSUFFICIENT_BUFFER)
return status;
*sid = malloc(*sid_len);
if (*sid == NULL)
return ERROR_INSUFFICIENT_BUFFER;
status = CreateWellKnownSid(type, NULL, *sid, sid_len);
if (status)
return ERROR_SUCCESS;
free(*sid);
status = GetLastError();
eprintf("create_unknownsid: CreateWellKnownSid failed with %d\n", status);
return status;
}
static void convert_nfs4name_2_user_domain(LPSTR nfs4name,
LPSTR *domain)
{
LPSTR p = nfs4name;
for(; p[0] != '\0'; p++) {
if (p[0] == '@') {
p[0] = '\0';
*domain = &p[1];
break;
}
}
}
static int map_name_2_sid(DWORD *sid_len, PSID *sid, LPCSTR name)
{
int status = ERROR_INTERNAL_ERROR;
SID_NAME_USE sid_type;
LPSTR tmp_buf = NULL;
DWORD tmp = 0;
status = LookupAccountName(NULL, name, NULL, sid_len, NULL, &tmp, &sid_type);
dprintf(ACLLVL, "map_name_2_sid: LookupAccountName for %s returned %d "
"GetLastError %d name len %d domain len %d\n", name, status,
GetLastError(), *sid_len, tmp);
if (status)
return ERROR_INTERNAL_ERROR;
status = GetLastError();
switch(status) {
case ERROR_INSUFFICIENT_BUFFER:
*sid = malloc(*sid_len);
if (*sid == NULL) {
status = GetLastError();
goto out;
}
tmp_buf = (LPSTR) malloc(tmp);
if (tmp_buf == NULL)
goto out_free_sid;
status = LookupAccountName(NULL, name, *sid, sid_len, tmp_buf,
&tmp, &sid_type);
free(tmp_buf);
if (!status) {
eprintf("map_name_2_sid: LookupAccountName for %s failed "
"with %d\n", name, GetLastError());
goto out_free_sid;
} else {
#ifdef DEBUG_ACLS
LPSTR ssid = NULL;
if (IsValidSid(*sid))
if (ConvertSidToStringSidA(*sid, &ssid))
dprintf(1, "map_name_2_sid: sid_type = %d SID %s\n",
sid_type, ssid);
else
dprintf(1, "map_name_2_sid: ConvertSidToStringSidA failed "
"with %d\n", GetLastError());
else
dprintf(1, "map_name_2_sid: Invalid Sid ?\n");
if (ssid) LocalFree(ssid);
#endif
}
status = ERROR_SUCCESS;
break;
case ERROR_NONE_MAPPED:
status = create_unknownsid(WinNullSid, sid, sid_len);
if (status)
goto out_free_sid;
}
out:
return status;
out_free_sid:
status = GetLastError();
free(*sid);
goto out;
}
static void free_sids(PSID *sids, int count)
{
int i;
for(i = 0; i < count; i++)
free(sids[i]);
free(sids);
}
static int check_4_special_identifiers(char *who, PSID *sid, DWORD *sid_len,
BOOLEAN *flag)
{
int status = ERROR_SUCCESS;
WELL_KNOWN_SID_TYPE type = 0;
*flag = TRUE;
if (!strncmp(who, ACE4_OWNER, strlen(ACE4_OWNER)-1))
type = WinCreatorOwnerSid;
else if (!strncmp(who, ACE4_GROUP, strlen(ACE4_GROUP)-1))
type = WinCreatorGroupSid;
else if (!strncmp(who, ACE4_EVERYONE, strlen(ACE4_EVERYONE)-1))
type = WinWorldSid;
else if (!strncmp(who, ACE4_NOBODY, strlen(ACE4_NOBODY)))
type = WinNullSid;
else
*flag = FALSE;
if (*flag)
status = create_unknownsid(type, sid, sid_len);
return status;
}
static int convert_nfs4acl_2_dacl(nfsacl41 *acl, int file_type,
PACL *dacl_out, PSID **sids_out)
{
int status = ERROR_NOT_SUPPORTED, size = 0;
uint32_t i;
DWORD sid_len;
PSID *sids;
PACL dacl;
LPSTR domain = NULL;
BOOLEAN flag;
sids = malloc(acl->count * sizeof(PSID));
if (sids == NULL) {
status = GetLastError();
goto out;
}
for (i = 0; i < acl->count; i++) {
convert_nfs4name_2_user_domain(acl->aces[i].who, &domain);
dprintf(ACLLVL, "handle_getacl: for user=%s domain=%s\n",
acl->aces[i].who, domain?domain:"<null>");
status = check_4_special_identifiers(acl->aces[i].who, &sids[i],
&sid_len, &flag);
if (status) {
free_sids(sids, i);
goto out;
}
if (!flag) {
status = map_name_2_sid(&sid_len, &sids[i], acl->aces[i].who);
if (status) {
free_sids(sids, i);
goto out;
}
}
size += sid_len - sizeof(DWORD);
}
size += sizeof(ACL) + (sizeof(ACCESS_ALLOWED_ACE)*acl->count);
size = (size + sizeof(DWORD) - 1) & 0xfffffffc; //align size on word boundry
dacl = malloc(size);
if (dacl == NULL)
goto out_free_sids;
if (InitializeAcl(dacl, size, ACL_REVISION)) {
ACCESS_MASK mask;
for (i = 0; i < acl->count; i++) {
// nfs4 acemask should be exactly the same as file access mask
mask = acl->aces[i].acemask;
dprintf(ACLLVL, "access mask %x ace type %s\n", mask,
acl->aces[i].acetype?"DENIED ACE":"ALLOWED ACE");
if (acl->aces[i].acetype == ACE4_ACCESS_ALLOWED_ACE_TYPE) {
status = AddAccessAllowedAce(dacl, ACL_REVISION, mask, sids[i]);
if (!status) {
eprintf("convert_nfs4acl_2_dacl: AddAccessAllowedAce failed "
"with %d\n", status);
goto out_free_dacl;
}
else status = ERROR_SUCCESS;
} else if (acl->aces[i].acetype == ACE4_ACCESS_DENIED_ACE_TYPE) {
status = AddAccessDeniedAce(dacl, ACL_REVISION, mask, sids[i]);
if (!status) {
eprintf("convert_nfs4acl_2_dacl: AddAccessDeniedAce failed "
"with %d\n", status);
goto out_free_dacl;
}
else status = ERROR_SUCCESS;
} else {
eprintf("convert_nfs4acl_2_dacl: unknown acetype %d\n",
acl->aces[i].acetype);
status = ERROR_INTERNAL_ERROR;
free(dacl);
free_sids(sids, acl->count);
goto out;
}
}
} else {
eprintf("convert_nfs4acl_2_dacl: InitializeAcl failed with %d\n", status);
goto out_free_dacl;
}
status = ERROR_SUCCESS;
*sids_out = sids;
*dacl_out = dacl;
out:
return status;
out_free_dacl:
free(dacl);
out_free_sids:
free_sids(sids, acl->count);
status = GetLastError();
goto out;
}
static int handle_getacl(nfs41_upcall *upcall)
{
int status = ERROR_NOT_SUPPORTED;
getacl_upcall_args *args = &upcall->args.getacl;
nfs41_open_state *state = upcall->state_ref;
nfs41_file_info info = { 0 };
bitmap4 attr_request = { 0 };
LPSTR domain = NULL;
SECURITY_DESCRIPTOR sec_desc;
PACL dacl = NULL;
PSID *sids = NULL;
PSID osid = NULL, gsid = NULL;
DWORD sid_len;
char owner[NFS4_OPAQUE_LIMIT], group[NFS4_OPAQUE_LIMIT];
nfsacl41 acl = { 0 };
// need to cache owner/group information XX
attr_request.count = 2;
attr_request.arr[1] = FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP;
if (args->query & DACL_SECURITY_INFORMATION) {
info.acl = &acl;
attr_request.arr[0] |= FATTR4_WORD0_ACL;
}
info.owner = owner;
info.owner_group = group;
status = nfs41_getattr(state->session, &state->file, &attr_request, &info);
if (status) {
eprintf("handle_getacl: nfs41_cached_getattr() failed with %d\n",
status);
goto out;
}
status = InitializeSecurityDescriptor(&sec_desc,
SECURITY_DESCRIPTOR_REVISION);
if (!status) {
status = GetLastError();
eprintf("handle_getacl: InitializeSecurityDescriptor failed with %d\n",
status);
goto out;
}
/* can't (re)use the same sid variable for both owner and group sids
* because security descriptor is created in absolute-form and it just
* stores pointers to the sids. thus each owner and group needs its own
* memory. free them after creating self-relative security descriptor.
*/
if (args->query & OWNER_SECURITY_INFORMATION) {
// parse user@domain. currently ignoring domain part XX
convert_nfs4name_2_user_domain(info.owner, &domain);
dprintf(ACLLVL, "handle_getacl: OWNER_SECURITY_INFORMATION: for user=%s "
"domain=%s\n", info.owner, domain?domain:"<null>");
sid_len = 0;
status = map_name_2_sid(&sid_len, &osid, info.owner);
if (status)
goto out;
status = SetSecurityDescriptorOwner(&sec_desc, osid, TRUE);
if (!status) {
status = GetLastError();
eprintf("handle_getacl: SetSecurityDescriptorOwner failed with "
"%d\n", status);
goto out;
}
}
if (args->query & GROUP_SECURITY_INFORMATION) {
convert_nfs4name_2_user_domain(info.owner_group, &domain);
dprintf(ACLLVL, "handle_getacl: GROUP_SECURITY_INFORMATION: for %s "
"domain=%s\n", info.owner_group, domain?domain:"<null>");
sid_len = 0;
status = map_name_2_sid(&sid_len, &gsid, info.owner_group);
if (status)
goto out;
status = SetSecurityDescriptorGroup(&sec_desc, gsid, TRUE);
if (!status) {
status = GetLastError();
eprintf("handle_getacl: SetSecurityDescriptorGroup failed with "
"%d\n", status);
goto out;
}
}
if (args->query & DACL_SECURITY_INFORMATION) {
dprintf(ACLLVL, "handle_getacl: DACL_SECURITY_INFORMATION\n");
status = convert_nfs4acl_2_dacl(info.acl, state->type, &dacl, &sids);
if (status)
goto out;
status = SetSecurityDescriptorDacl(&sec_desc, TRUE, dacl, TRUE);
if (!status) {
status = GetLastError();
eprintf("handle_getacl: SetSecurityDescriptorDacl failed with "
"%d\n", status);
goto out;
}
}
args->sec_desc_len = 0;
status = MakeSelfRelativeSD(&sec_desc, args->sec_desc, &args->sec_desc_len);
if (status) {
status = ERROR_INTERNAL_ERROR;
goto out;
}
status = GetLastError();
if (status != ERROR_INSUFFICIENT_BUFFER) {
eprintf("handle_getacl: MakeSelfRelativeSD failes with %d\n", status);
goto out;
}
args->sec_desc = malloc(args->sec_desc_len);
if (args->sec_desc == NULL) {
status = GetLastError();
goto out;
}
status = MakeSelfRelativeSD(&sec_desc, args->sec_desc, &args->sec_desc_len);
if (!status) {
status = GetLastError();
eprintf("handle_getacl: MakeSelfRelativeSD failes with %d\n", status);
free(args->sec_desc);
goto out;
} else status = ERROR_SUCCESS;
out:
if (args->query & OWNER_SECURITY_INFORMATION) {
if (osid) free(osid);
}
if (args->query & GROUP_SECURITY_INFORMATION) {
if (gsid) free(gsid);
}
if (args->query & DACL_SECURITY_INFORMATION) {
if (sids) free_sids(sids, info.acl->count);
free(dacl);
nfsacl41_free(info.acl);
}
return status;
}
static int marshall_getacl(unsigned char *buffer, uint32_t *length,
nfs41_upcall *upcall)
{
int status = ERROR_NOT_SUPPORTED;
getacl_upcall_args *args = &upcall->args.getacl;
status = safe_write(&buffer, length, &args->sec_desc_len, sizeof(DWORD));
if (status) goto out;
status = safe_write(&buffer, length, args->sec_desc, args->sec_desc_len);
free(args->sec_desc);
if (status) goto out;
out:
return status;
}
const nfs41_upcall_op nfs41_op_getacl = {
parse_getacl,
handle_getacl,
marshall_getacl
};
static int parse_setacl(unsigned char *buffer, uint32_t length,
nfs41_upcall *upcall)
{
int status;
setacl_upcall_args *args = &upcall->args.setacl;
ULONG sec_desc_len;
status = safe_read(&buffer, &length, &args->query, sizeof(args->query));
if (status) goto out;
status = safe_read(&buffer, &length, &sec_desc_len, sizeof(ULONG));
if (status) goto out;
args->sec_desc = (PSECURITY_DESCRIPTOR)buffer;
dprintf(1, "parsing NFS41_ACL_SET: info_class=%d sec_desc_len=%d\n",
args->query, sec_desc_len);
out:
return status;
}
static int is_well_known_sid(PSID sid, char *who)
{
int status, i;
for (i = 0; i < 78; i++) {
status = IsWellKnownSid(sid, (WELL_KNOWN_SID_TYPE)i);
if (!status) continue;
else {
dprintf(ACLLVL, "WELL_KNOWN_SID_TYPE %d\n", i);
switch((WELL_KNOWN_SID_TYPE)i) {
case WinCreatorOwnerSid:
memcpy(who, ACE4_OWNER, strlen(ACE4_OWNER)+1);
return TRUE;
case WinNullSid:
memcpy(who, ACE4_NOBODY, strlen(ACE4_NOBODY)+1);
return TRUE;
case WinAnonymousSid:
memcpy(who, ACE4_ANONYMOUS, strlen(ACE4_ANONYMOUS)+1);
return TRUE;
case WinWorldSid:
memcpy(who, ACE4_EVERYONE, strlen(ACE4_EVERYONE)+1);
return TRUE;
case WinCreatorGroupSid:
case WinBuiltinUsersSid:
memcpy(who, ACE4_GROUP, strlen(ACE4_GROUP)+1);
return TRUE;
case WinAuthenticatedUserSid:
memcpy(who, ACE4_AUTHENTICATED, strlen(ACE4_AUTHENTICATED)+1);
return TRUE;
case WinDialupSid:
memcpy(who, ACE4_DIALUP, strlen(ACE4_DIALUP)+1);
return TRUE;
case WinNetworkSid:
memcpy(who, ACE4_NETWORK, strlen(ACE4_NETWORK)+1);
return TRUE;
case WinBatchSid:
memcpy(who, ACE4_BATCH, strlen(ACE4_BATCH)+1);
return TRUE;
case WinInteractiveSid:
memcpy(who, ACE4_INTERACTIVE, strlen(ACE4_INTERACTIVE)+1);
return TRUE;
case WinNetworkServiceSid:
case WinLocalServiceSid:
case WinServiceSid:
memcpy(who, ACE4_SERVICE, strlen(ACE4_SERVICE)+1);
return TRUE;
default: return FALSE;
}
}
}
return FALSE;
}
static void map_aceflags(BYTE win_aceflags, uint32_t *nfs4_aceflags)
{
if (win_aceflags & OBJECT_INHERIT_ACE)
*nfs4_aceflags |= ACE4_FILE_INHERIT_ACE;
if (win_aceflags & CONTAINER_INHERIT_ACE)
*nfs4_aceflags |= ACE4_DIRECTORY_INHERIT_ACE;
if (win_aceflags & NO_PROPAGATE_INHERIT_ACE)
*nfs4_aceflags |= ACE4_NO_PROPAGATE_INHERIT_ACE;
if (win_aceflags & INHERIT_ONLY_ACE)
*nfs4_aceflags |= ACE4_INHERIT_ONLY_ACE;
if (win_aceflags & INHERITED_ACE)
*nfs4_aceflags |= ACE4_INHERITED_ACE;
dprintf(ACLLVL, "ACE FLAGS: %x nfs4 aceflags %x\n",
win_aceflags, *nfs4_aceflags);
}
static void map_acemask(ACCESS_MASK mask, int file_type, uint32_t *nfs4_mask)
{
dprintf(ACLLVL, "ACE MASK: %x\n", mask);
print_windows_access_mask(0, mask);
/* check if any GENERIC bits set */
if (mask & 0xf000000) {
if (mask & GENERIC_ALL) {
if (file_type == NF4DIR)
*nfs4_mask |= ACE4_ALL_DIR;
else
*nfs4_mask |= ACE4_ALL_FILE;
} else {
if (mask & GENERIC_READ)
*nfs4_mask |= ACE4_GENERIC_READ;
if (mask & GENERIC_WRITE)
*nfs4_mask |= ACE4_GENERIC_WRITE;
if (mask & GENERIC_EXECUTE)
*nfs4_mask |= ACE4_GENERIC_EXECUTE;
}
}
else /* ignoring generic and reserved bits */
*nfs4_mask = mask & 0x00ffffff;
print_nfs_access_mask(0, *nfs4_mask);
}
static int map_nfs4ace_who(PSID sid, PSID owner_sid, PSID group_sid, char *who_out, char *domain)
{
int status = ERROR_INTERNAL_ERROR;
DWORD size = 0, tmp_size = 0;
SID_NAME_USE sid_type;
LPSTR tmp_buf = NULL, who = NULL;
/* for ace mapping, we want to map owner's sid into "owner@"
* but for set_owner attribute we want to map owner into a user name
* same applies to group
*/
status = 0;
if (owner_sid) {
if (EqualSid(sid, owner_sid)) {
dprintf(ACLLVL, "map_nfs4ace_who: this is owner's sid\n");
memcpy(who_out, ACE4_OWNER, strlen(ACE4_OWNER)+1);
return ERROR_SUCCESS;
}
}
if (group_sid) {
if (EqualSid(sid, group_sid)) {
dprintf(ACLLVL, "map_nfs4ace_who: this is group's sid\n");
memcpy(who_out, ACE4_GROUP, strlen(ACE4_GROUP)+1);
return ERROR_SUCCESS;
}
}
status = is_well_known_sid(sid, who_out);
if (status) {
if (!strncmp(who_out, ACE4_NOBODY, strlen(ACE4_NOBODY))) {
size = (DWORD)strlen(ACE4_NOBODY);
goto add_domain;
}
else
return ERROR_SUCCESS;
}
status = LookupAccountSid(NULL, sid, who, &size, tmp_buf,
&tmp_size, &sid_type);
dprintf(ACLLVL, "map_nfs4ace_who: LookupAccountSid returned %d GetLastError "
"%d name len %d domain len %d\n", status, GetLastError(),
size, tmp_size);
if (status)
return ERROR_INTERNAL_ERROR;
status = GetLastError();
if (status != ERROR_INSUFFICIENT_BUFFER)
return ERROR_INTERNAL_ERROR;
who = malloc(size);
if (who == NULL) {
status = GetLastError();
goto out;
}
tmp_buf = malloc(tmp_size);
if (tmp_buf == NULL)
goto out_free_who;
status = LookupAccountSid(NULL, sid, who, &size, tmp_buf,
&tmp_size, &sid_type);
free(tmp_buf);
if (!status) {
eprintf("map_nfs4ace_who: LookupAccountSid failed with %d\n",
GetLastError());
goto out_free_who;
}
memcpy(who_out, who, size);
add_domain:
memcpy(who_out+size, "@", sizeof(char));
memcpy(who_out+size+1, domain, strlen(domain)+1);
dprintf(ACLLVL, "map_nfs4ace_who: who=%s\n", who_out);
if (who) free(who);
status = ERROR_SUCCESS;
out:
return status;
out_free_who:
free(who);
status = GetLastError();
goto out;
}
static int map_dacl_2_nfs4acl(PACL acl, PSID sid, PSID gsid, nfsacl41 *nfs4_acl,
int file_type, char *domain)
{
int status;
if (acl == NULL) {
dprintf(ACLLVL, "this is a NULL dacl: all access to an object\n");
nfs4_acl->count = 1;
nfs4_acl->aces = calloc(1, sizeof(nfsace4));
if (nfs4_acl->aces == NULL) {
status = GetLastError();
goto out;
}
nfs4_acl->flag = 0;
memcpy(nfs4_acl->aces->who, ACE4_EVERYONE, strlen(ACE4_EVERYONE)+1);
nfs4_acl->aces->acetype = ACE4_ACCESS_ALLOWED_ACE_TYPE;
if (file_type == NF4DIR)
nfs4_acl->aces->acemask = ACE4_ALL_DIR;
else
nfs4_acl->aces->acemask = ACE4_ALL_FILE;
nfs4_acl->aces->aceflag = 0;
} else {
int i;
PACE_HEADER ace;
PBYTE tmp_pointer;
dprintf(ACLLVL, "NON-NULL dacl with %d ACEs\n", acl->AceCount);
print_hexbuf_no_asci(3, (unsigned char *)"ACL\n",
(unsigned char *)acl, acl->AclSize);
nfs4_acl->count = acl->AceCount;
nfs4_acl->aces = calloc(nfs4_acl->count, sizeof(nfsace4));
if (nfs4_acl->aces == NULL) {
status = GetLastError();
goto out;
}
nfs4_acl->flag = 0;
for (i = 0; i < acl->AceCount; i++) {
status = GetAce(acl, i, &ace);
if (!status) {
status = GetLastError();
eprintf("map_dacl_2_nfs4acl: GetAce failed with %d\n", status);
goto out_free;
}
tmp_pointer = (PBYTE)ace;
print_hexbuf_no_asci(3, (unsigned char *)"ACE\n",
(unsigned char *)ace, ace->AceSize);
dprintf(ACLLVL, "ACE TYPE: %x\n", ace->AceType);
if (ace->AceType == ACCESS_ALLOWED_ACE_TYPE)
nfs4_acl->aces[i].acetype = ACE4_ACCESS_ALLOWED_ACE_TYPE;
else if (ace->AceType == ACCESS_DENIED_ACE_TYPE)
nfs4_acl->aces[i].acetype = ACE4_ACCESS_DENIED_ACE_TYPE;
else {
eprintf("map_dacl_2_nfs4acl: unsupported ACE type %d\n",
ace->AceType);
status = ERROR_NOT_SUPPORTED;
goto out_free;
}
map_aceflags(ace->AceFlags, &nfs4_acl->aces[i].aceflag);
map_acemask(*(PACCESS_MASK)(ace + 1), file_type,
&nfs4_acl->aces[i].acemask);
tmp_pointer += sizeof(ACCESS_MASK) + sizeof(ACE_HEADER);
status = map_nfs4ace_who(tmp_pointer, sid, gsid, nfs4_acl->aces[i].who,
domain);
if (status)
goto out_free;
}
}
status = ERROR_SUCCESS;
out:
return status;
out_free:
free(nfs4_acl->aces);
goto out;
}
static int handle_setacl(nfs41_upcall *upcall)
{
int status = ERROR_NOT_SUPPORTED;
setacl_upcall_args *args = &upcall->args.setacl;
nfs41_open_state *state = upcall->state_ref;
nfs41_file_info info = { 0 };
stateid_arg stateid;
nfsacl41 nfs4_acl = { 0 };
PSID sid = NULL, gsid = NULL;
BOOL sid_default, gsid_default;
if (args->query & OWNER_SECURITY_INFORMATION) {
char owner[NFS4_OPAQUE_LIMIT];
dprintf(ACLLVL, "handle_setacl: OWNER_SECURITY_INFORMATION\n");
status = GetSecurityDescriptorOwner(args->sec_desc, &sid, &sid_default);
if (!status) {
status = GetLastError();
eprintf("GetSecurityDescriptorOwner failed with %d\n", status);
goto out;
}
info.owner = owner;
status = map_nfs4ace_who(sid, NULL, NULL, info.owner, localdomain_name);
if (status)
goto out;
else {
info.attrmask.arr[1] |= FATTR4_WORD1_OWNER;
info.attrmask.count = 2;
}
}
if (args->query & GROUP_SECURITY_INFORMATION) {
char group[NFS4_OPAQUE_LIMIT];
dprintf(ACLLVL, "handle_setacl: GROUP_SECURITY_INFORMATION\n");
status = GetSecurityDescriptorGroup(args->sec_desc, &sid, &sid_default);
if (!status) {
status = GetLastError();
eprintf("GetSecurityDescriptorOwner failed with %d\n", status);
goto out;
}
info.owner_group = group;
status = map_nfs4ace_who(sid, NULL, NULL, info.owner_group,
localdomain_name);
if (status)
goto out;
else {
info.attrmask.arr[1] |= FATTR4_WORD1_OWNER_GROUP;
info.attrmask.count = 2;
}
}
if (args->query & DACL_SECURITY_INFORMATION) {
BOOL dacl_present, dacl_default;
PACL acl;
dprintf(ACLLVL, "handle_setacl: DACL_SECURITY_INFORMATION\n");
status = GetSecurityDescriptorDacl(args->sec_desc, &dacl_present,
&acl, &dacl_default);
if (!status) {
status = GetLastError();
eprintf("GetSecurityDescriptorDacl failed with %d\n", status);
goto out;
}
status = GetSecurityDescriptorOwner(args->sec_desc, &sid, &sid_default);
if (!status) {
status = GetLastError();
eprintf("GetSecurityDescriptorOwner failed with %d\n", status);
goto out;
}
status = GetSecurityDescriptorGroup(args->sec_desc, &gsid, &gsid_default);
if (!status) {
status = GetLastError();
eprintf("GetSecurityDescriptorOwner failed with %d\n", status);
goto out;
}
status = map_dacl_2_nfs4acl(acl, sid, gsid, &nfs4_acl, state->type,
localdomain_name);
if (status)
goto out;
else {
info.acl = &nfs4_acl;
info.attrmask.arr[0] |= FATTR4_WORD0_ACL;
if (!info.attrmask.count)
info.attrmask.count = 1;
}
}
/* break read delegations before SETATTR */
nfs41_delegation_return(state->session, &state->file,
OPEN_DELEGATE_WRITE, FALSE);
nfs41_open_stateid_arg(state, &stateid);
status = nfs41_setattr(state->session, &state->file, &stateid, &info);
if (status) {
dprintf(ACLLVL, "handle_setacl: nfs41_setattr() failed with error %s.\n",
nfs_error_string(status));
status = nfs_to_windows_error(status, ERROR_NOT_SUPPORTED);
}
args->ctime = info.change;
if (args->query & DACL_SECURITY_INFORMATION)
free(nfs4_acl.aces);
out:
return status;
}
static int marshall_setacl(unsigned char *buffer, uint32_t *length, nfs41_upcall *upcall)
{
setacl_upcall_args *args = &upcall->args.setacl;
return safe_write(&buffer, length, &args->ctime, sizeof(args->ctime));
}
const nfs41_upcall_op nfs41_op_setacl = {
parse_setacl,
handle_setacl,
marshall_setacl
};
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