*/
#include "includes.h"
+#include "smbd/smbd.h"
#include "nfs4_acls.h"
+#include "librpc/gen_ndr/ndr_security.h"
+#include "../libcli/security/dom_sid.h"
+#include "../libcli/security/security.h"
+#include "dbwrap/dbwrap.h"
+#include "dbwrap/dbwrap_open.h"
+#include "system/filesys.h"
+#include "passdb/lookup_sid.h"
+#include "util_tdb.h"
+#include "lib/param/loadparm.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_ACLS
SMB_ACE4_INT_T *last;
} SMB_ACL4_INT_T;
+/************************************************
+ Split the ACE flag mapping between nfs4 and Windows
+ into two separate functions rather than trying to do
+ it inline. Allows us to carefully control what flags
+ are mapped to what in one place.
+************************************************/
+
+static uint32_t map_nfs4_ace_flags_to_windows_ace_flags(
+ uint32_t nfs4_ace_flags)
+{
+ uint32_t win_ace_flags = 0;
+
+ /* The nfs4 flags <= 0xf map perfectly. */
+ win_ace_flags = nfs4_ace_flags & (SEC_ACE_FLAG_OBJECT_INHERIT|
+ SEC_ACE_FLAG_CONTAINER_INHERIT|
+ SEC_ACE_FLAG_NO_PROPAGATE_INHERIT|
+ SEC_ACE_FLAG_INHERIT_ONLY);
+
+ /* flags greater than 0xf have diverged :-(. */
+ /* See the nfs4 ace flag definitions here:
+ http://www.ietf.org/rfc/rfc3530.txt.
+ And the Windows ace flag definitions here:
+ librpc/idl/security.idl. */
+ if (nfs4_ace_flags & SMB_ACE4_INHERITED_ACE) {
+ win_ace_flags |= SEC_ACE_FLAG_INHERITED_ACE;
+ }
+
+ return win_ace_flags;
+}
+
+static uint32_t map_windows_ace_flags_to_nfs4_ace_flags(uint32_t win_ace_flags)
+{
+ uint32_t nfs4_ace_flags = 0;
+
+ /* The windows flags <= 0xf map perfectly. */
+ nfs4_ace_flags = win_ace_flags & (SMB_ACE4_FILE_INHERIT_ACE|
+ SMB_ACE4_DIRECTORY_INHERIT_ACE|
+ SMB_ACE4_NO_PROPAGATE_INHERIT_ACE|
+ SMB_ACE4_INHERIT_ONLY_ACE);
+
+ /* flags greater than 0xf have diverged :-(. */
+ /* See the nfs4 ace flag definitions here:
+ http://www.ietf.org/rfc/rfc3530.txt.
+ And the Windows ace flag definitions here:
+ librpc/idl/security.idl. */
+ if (win_ace_flags & SEC_ACE_FLAG_INHERITED_ACE) {
+ nfs4_ace_flags |= SMB_ACE4_INHERITED_ACE;
+ }
+
+ return nfs4_ace_flags;
+}
+
static SMB_ACL4_INT_T *get_validated_aclint(SMB4ACL_T *theacl)
{
SMB_ACL4_INT_T *aclint = (SMB_ACL4_INT_T *)theacl;
SMB4ACL_T *smb_create_smb4acl(void)
{
TALLOC_CTX *mem_ctx = talloc_tos();
- SMB_ACL4_INT_T *theacl = (SMB_ACL4_INT_T *)TALLOC_ZERO_SIZE(mem_ctx, sizeof(SMB_ACL4_INT_T));
+ SMB_ACL4_INT_T *theacl = (SMB_ACL4_INT_T *)TALLOC_ZERO_SIZE(
+ mem_ctx, sizeof(SMB_ACL4_INT_T));
if (theacl==NULL)
{
DEBUG(0, ("TALLOC_SIZE failed\n"));
TALLOC_CTX *mem_ctx = talloc_tos();
SMB_ACE4_INT_T *ace;
- ace = (SMB_ACE4_INT_T *)TALLOC_ZERO_SIZE(mem_ctx, sizeof(SMB_ACE4_INT_T));
+ ace = (SMB_ACE4_INT_T *)TALLOC_ZERO_SIZE(
+ mem_ctx, sizeof(SMB_ACE4_INT_T));
if (ace==NULL)
{
DEBUG(0, ("TALLOC_SIZE failed\n"));
{
memset(psbuf, 0, sizeof(SMB_STRUCT_STAT));
- if (fsp->is_directory || fsp->fh->fd == -1) {
+ if (fsp->fh->fd == -1) {
return smbacl4_GetFileOwner(fsp->conn,
fsp->fsp_name->base_name, psbuf);
}
}
static bool smbacl4_nfs42win(TALLOC_CTX *mem_ctx, SMB4ACL_T *theacl, /* in */
- DOM_SID *psid_owner, /* in */
- DOM_SID *psid_group, /* in */
+ struct dom_sid *psid_owner, /* in */
+ struct dom_sid *psid_group, /* in */
bool is_directory, /* in */
struct security_ace **ppnt_ace_list, /* out */
int *pgood_aces /* out */
DEBUG(10, ("smbacl_nfs42win entered\n"));
aclint = get_validated_aclint(theacl);
- /* We do not check for naces being 0 or theacl being NULL here because it is done upstream */
+ /* We do not check for naces being 0 or theacl being NULL here
+ * because it is done upstream */
/* in smb_get_nt_acl_nfs4(). */
- nt_ace_list = (struct security_ace *)TALLOC_ZERO_SIZE(mem_ctx, aclint->naces * sizeof(struct security_ace));
+ nt_ace_list = (struct security_ace *)TALLOC_ZERO_SIZE(
+ mem_ctx, aclint->naces * sizeof(struct security_ace));
if (nt_ace_list==NULL)
{
DEBUG(10, ("talloc error"));
return False;
}
- for (aceint=aclint->first; aceint!=NULL; aceint=(SMB_ACE4_INT_T *)aceint->next) {
+ for (aceint=aclint->first;
+ aceint!=NULL;
+ aceint=(SMB_ACE4_INT_T *)aceint->next) {
uint32_t mask;
- DOM_SID sid;
+ struct dom_sid sid;
SMB_ACE4PROP_T *ace = &aceint->prop;
- uint32_t mapped_ace_flags;
+ uint32_t win_ace_flags;
- DEBUG(10, ("magic: 0x%x, type: %d, iflags: %x, flags: %x, mask: %x, "
- "who: %d\n", aceint->magic, ace->aceType, ace->flags,
- ace->aceFlags, ace->aceMask, ace->who.id));
+ DEBUG(10, ("magic: 0x%x, type: %d, iflags: %x, flags: %x, "
+ "mask: %x, who: %d\n",
+ aceint->magic, ace->aceType, ace->flags,
+ ace->aceFlags, ace->aceMask, ace->who.id));
SMB_ASSERT(aceint->magic==SMB_ACE4_INT_MAGIC);
default:
DEBUG(8, ("invalid special who id %d "
"ignored\n", ace->who.special_id));
+ continue;
}
} else {
if (ace->aceFlags & SMB_ACE4_IDENTIFIER_GROUP) {
ace->aceMask |= SMB_ACE4_DELETE_CHILD;
}
- mapped_ace_flags = ace->aceFlags & 0xf;
- if (!is_directory && (mapped_ace_flags & (SMB_ACE4_FILE_INHERIT_ACE|SMB_ACE4_DIRECTORY_INHERIT_ACE))) {
+ win_ace_flags = map_nfs4_ace_flags_to_windows_ace_flags(
+ ace->aceFlags);
+ if (!is_directory &&
+ (win_ace_flags & (SEC_ACE_FLAG_OBJECT_INHERIT|
+ SEC_ACE_FLAG_CONTAINER_INHERIT))) {
/*
* GPFS sets inherits dir_inhert and file_inherit flags
* to files, too, which confuses windows, and seems to
* be wrong anyways. ==> Map these bits away for files.
*/
DEBUG(10, ("removing inherit flags from nfs4 ace\n"));
- mapped_ace_flags &= ~(SMB_ACE4_FILE_INHERIT_ACE|SMB_ACE4_DIRECTORY_INHERIT_ACE);
+ win_ace_flags &= ~(SEC_ACE_FLAG_OBJECT_INHERIT|
+ SEC_ACE_FLAG_CONTAINER_INHERIT);
}
- DEBUG(10, ("mapped ace flags: 0x%x => 0x%x\n",
- ace->aceFlags, mapped_ace_flags));
+ DEBUG(10, ("Windows mapped ace flags: 0x%x => 0x%x\n",
+ ace->aceFlags, win_ace_flags));
mask = ace->aceMask;
+ /* Windows clients expect SYNC on acls to
+ correctly allow rename. See bug #7909. */
+ /* But not on DENY ace entries. See
+ bug #8442. */
+ if(ace->aceType == SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE) {
+ mask = ace->aceMask | SMB_ACE4_SYNCHRONIZE;
+ }
init_sec_ace(&nt_ace_list[good_aces++], &sid,
ace->aceType, mask,
- mapped_ace_flags);
+ win_ace_flags);
}
*ppnt_ace_list = nt_ace_list;
static NTSTATUS smb_get_nt_acl_nfs4_common(const SMB_STRUCT_STAT *sbuf,
uint32 security_info,
- SEC_DESC **ppdesc, SMB4ACL_T *theacl)
+ struct security_descriptor **ppdesc, SMB4ACL_T *theacl)
{
int good_aces = 0;
- DOM_SID sid_owner, sid_group;
+ struct dom_sid sid_owner, sid_group;
size_t sd_size = 0;
struct security_ace *nt_ace_list = NULL;
- SEC_ACL *psa = NULL;
+ struct security_acl *psa = NULL;
TALLOC_CTX *mem_ctx = talloc_tos();
if (theacl==NULL || smb_get_naces(theacl)==0)
}
DEBUG(10,("after make sec_acl\n"));
- *ppdesc = make_sec_desc(mem_ctx, SEC_DESC_REVISION, SEC_DESC_SELF_RELATIVE,
- (security_info & OWNER_SECURITY_INFORMATION) ? &sid_owner : NULL,
- (security_info & GROUP_SECURITY_INFORMATION) ? &sid_group : NULL,
- NULL, psa, &sd_size);
+ *ppdesc = make_sec_desc(
+ mem_ctx, SD_REVISION, SEC_DESC_SELF_RELATIVE,
+ (security_info & SECINFO_OWNER) ? &sid_owner : NULL,
+ (security_info & SECINFO_GROUP) ? &sid_group : NULL,
+ NULL, psa, &sd_size);
if (*ppdesc==NULL) {
DEBUG(2,("make_sec_desc failed\n"));
return NT_STATUS_NO_MEMORY;
}
- DEBUG(10, ("smb_get_nt_acl_nfs4_common successfully exited with sd_size %d\n",
- (int)ndr_size_security_descriptor(*ppdesc, NULL, 0)));
+ DEBUG(10, ("smb_get_nt_acl_nfs4_common successfully exited with "
+ "sd_size %d\n",
+ (int)ndr_size_security_descriptor(*ppdesc, 0)));
return NT_STATUS_OK;
}
NTSTATUS smb_fget_nt_acl_nfs4(files_struct *fsp,
- uint32 security_info,
- SEC_DESC **ppdesc, SMB4ACL_T *theacl)
+ uint32 security_info,
+ struct security_descriptor **ppdesc,
+ SMB4ACL_T *theacl)
{
SMB_STRUCT_STAT sbuf;
return map_nt_error_from_unix(errno);
}
- return smb_get_nt_acl_nfs4_common(&sbuf, security_info, ppdesc, theacl);
+ return smb_get_nt_acl_nfs4_common(&sbuf, security_info, ppdesc,
+ theacl);
}
NTSTATUS smb_get_nt_acl_nfs4(struct connection_struct *conn,
- const char *name,
- uint32 security_info,
- SEC_DESC **ppdesc, SMB4ACL_T *theacl)
+ const char *name,
+ uint32 security_info,
+ struct security_descriptor **ppdesc,
+ SMB4ACL_T *theacl)
{
SMB_STRUCT_STAT sbuf;
return map_nt_error_from_unix(errno);
}
- return smb_get_nt_acl_nfs4_common(&sbuf, security_info, ppdesc, theacl);
+ return smb_get_nt_acl_nfs4_common(&sbuf, security_info, ppdesc,
+ theacl);
}
enum smbacl4_mode_enum {e_simple=0, e_special=1};
enum smbacl4_mode_enum mode;
bool do_chown;
enum smbacl4_acedup_enum acedup;
- struct db_context *sid_mapping_table;
} smbacl4_vfs_params;
/*
{
static const struct enum_list enum_smbacl4_modes[] = {
{ e_simple, "simple" },
- { e_special, "special" }
+ { e_special, "special" },
+ { -1 , NULL }
};
static const struct enum_list enum_smbacl4_acedups[] = {
{ e_dontcare, "dontcare" },
{ e_reject, "reject" },
{ e_ignore, "ignore" },
{ e_merge, "merge" },
+ { -1 , NULL }
};
memset(params, 0, sizeof(smbacl4_vfs_params));
DEBUG(level, ("NFS4ACL: size=%d\n", aclint->naces));
- for(aceint = aclint->first; aceint!=NULL; aceint=(SMB_ACE4_INT_T *)aceint->next) {
+ for (aceint = aclint->first;
+ aceint!=NULL;
+ aceint=(SMB_ACE4_INT_T *)aceint->next) {
SMB_ACE4PROP_T *ace = &aceint->prop;
- DEBUG(level, ("\tACE: type=%d, flags=0x%x, fflags=0x%x, mask=0x%x, id=%d\n",
- ace->aceType,
- ace->aceFlags, ace->flags,
- ace->aceMask,
- ace->who.id));
+ DEBUG(level, ("\tACE: type=%d, flags=0x%x, fflags=0x%x, "
+ "mask=0x%x, id=%d\n",
+ ace->aceType,
+ ace->aceFlags, ace->flags,
+ ace->aceMask,
+ ace->who.id));
}
}
SMB_ACL4_INT_T *aclint = get_validated_aclint(theacl);
SMB_ACE4_INT_T *aceint;
- for(aceint = aclint->first; aceint!=NULL; aceint=(SMB_ACE4_INT_T *)aceint->next) {
+ for (aceint = aclint->first; aceint != NULL;
+ aceint=(SMB_ACE4_INT_T *)aceint->next) {
SMB_ACE4PROP_T *ace = &aceint->prop;
DEBUG(10,("ace type:0x%x flags:0x%x aceFlags:0x%x "
if (ace->flags == aceNew->flags &&
ace->aceType==aceNew->aceType &&
- ((ace->aceFlags&SMB_ACE4_INHERIT_ONLY_ACE)==
- (aceNew->aceFlags&SMB_ACE4_INHERIT_ONLY_ACE)) &&
- (ace->aceFlags&SMB_ACE4_IDENTIFIER_GROUP)==
- (aceNew->aceFlags&SMB_ACE4_IDENTIFIER_GROUP)
- ) {
+ ace->aceFlags==aceNew->aceFlags)
+ {
/* keep type safety; e.g. gid is an u.short */
if (ace->flags & SMB_ACE4_ID_SPECIAL)
{
- if (ace->who.special_id==aceNew->who.special_id)
+ if (ace->who.special_id ==
+ aceNew->who.special_id)
return ace;
} else {
if (ace->aceFlags & SMB_ACE4_IDENTIFIER_GROUP)
return NULL;
}
-static bool nfs4_map_sid(smbacl4_vfs_params *params, const DOM_SID *src,
- DOM_SID *dst)
-{
- static struct db_context *mapping_db = NULL;
- TDB_DATA data;
-
- if (mapping_db == NULL) {
- const char *dbname = lp_parm_const_string(
- -1, SMBACL4_PARAM_TYPE_NAME, "sidmap", NULL);
-
- if (dbname == NULL) {
- DEBUG(10, ("%s:sidmap not defined\n",
- SMBACL4_PARAM_TYPE_NAME));
- return False;
- }
-
- become_root();
- mapping_db = db_open(NULL, dbname, 0, TDB_DEFAULT,
- O_RDONLY, 0600);
- unbecome_root();
-
- if (mapping_db == NULL) {
- DEBUG(1, ("could not open sidmap: %s\n",
- strerror(errno)));
- return False;
- }
- }
-
- if (mapping_db->fetch(mapping_db, NULL,
- string_term_tdb_data(sid_string_tos(src)),
- &data) == -1) {
- DEBUG(10, ("could not find mapping for SID %s\n",
- sid_string_dbg(src)));
- return False;
- }
-
- if ((data.dptr == NULL) || (data.dsize <= 0)
- || (data.dptr[data.dsize-1] != '\0')) {
- DEBUG(5, ("invalid mapping for SID %s\n",
- sid_string_dbg(src)));
- TALLOC_FREE(data.dptr);
- return False;
- }
-
- if (!string_to_sid(dst, (char *)data.dptr)) {
- DEBUG(1, ("invalid mapping %s for SID %s\n",
- (char *)data.dptr, sid_string_dbg(src)));
- TALLOC_FREE(data.dptr);
- return False;
- }
-
- TALLOC_FREE(data.dptr);
-
- return True;
-}
static bool smbacl4_fill_ace4(
TALLOC_CTX *mem_ctx,
DEBUG(10, ("got ace for %s\n", sid_string_dbg(&ace_nt->trustee)));
memset(ace_v4, 0, sizeof(SMB_ACE4PROP_T));
- ace_v4->aceType = ace_nt->type; /* only ACCESS|DENY supported right now */
- ace_v4->aceFlags = ace_nt->flags & SEC_ACE_FLAG_VALID_INHERIT;
+
+ /* only ACCESS|DENY supported right now */
+ ace_v4->aceType = ace_nt->type;
+
+ ace_v4->aceFlags = map_windows_ace_flags_to_nfs4_ace_flags(
+ ace_nt->flags);
ace_v4->aceMask = ace_nt->access_mask &
- (STD_RIGHT_ALL_ACCESS | SA_RIGHT_FILE_ALL_ACCESS);
+ (SEC_STD_ALL | SEC_FILE_ALL);
se_map_generic(&ace_v4->aceMask, &file_generic_mapping);
DEBUG(9, ("ace_v4->aceMask(0x%x)!=ace_nt->access_mask(0x%x)\n",
ace_v4->aceMask, ace_nt->access_mask));
- if (sid_equal(&ace_nt->trustee, &global_sid_World)) {
+ if (dom_sid_equal(&ace_nt->trustee, &global_sid_World)) {
ace_v4->who.special_id = SMB_ACE4_WHO_EVERYONE;
ace_v4->flags |= SMB_ACE4_ID_SPECIAL;
} else {
- const char *dom, *name;
- enum lsa_SidType type;
uid_t uid;
gid_t gid;
- DOM_SID sid;
-
- sid_copy(&sid, &ace_nt->trustee);
-
- if (!lookup_sid(mem_ctx, &sid, &dom, &name, &type)) {
-
- DOM_SID mapped;
-
- if (!nfs4_map_sid(params, &sid, &mapped)) {
- DEBUG(1, ("nfs4_acls.c: file [%s]: SID %s "
- "unknown\n", filename, sid_string_dbg(&sid)));
- errno = EINVAL;
- return False;
- }
-
- DEBUG(2, ("nfs4_acls.c: file [%s]: mapped SID %s "
- "to %s\n", filename, sid_string_dbg(&sid), sid_string_dbg(&mapped)));
-
- if (!lookup_sid(mem_ctx, &mapped, &dom,
- &name, &type)) {
- DEBUG(1, ("nfs4_acls.c: file [%s]: SID %s "
- "mapped from %s is unknown\n",
- filename, sid_string_dbg(&mapped), sid_string_dbg(&sid)));
- errno = EINVAL;
- return False;
- }
-
- sid_copy(&sid, &mapped);
- }
-
- if (type == SID_NAME_USER) {
- if (!sid_to_uid(&sid, &uid)) {
- DEBUG(1, ("nfs4_acls.c: file [%s]: could not "
- "convert %s to uid\n", filename,
- sid_string_dbg(&sid)));
- return False;
- }
- if (params->mode==e_special && uid==ownerUID) {
- ace_v4->flags |= SMB_ACE4_ID_SPECIAL;
- ace_v4->who.special_id = SMB_ACE4_WHO_OWNER;
- } else {
- ace_v4->who.uid = uid;
- }
- } else { /* else group? - TODO check it... */
- if (!sid_to_gid(&sid, &gid)) {
- DEBUG(1, ("nfs4_acls.c: file [%s]: could not "
- "convert %s to gid\n", filename,
- sid_string_dbg(&sid)));
- return False;
- }
-
+ if (sid_to_gid(&ace_nt->trustee, &gid)) {
ace_v4->aceFlags |= SMB_ACE4_IDENTIFIER_GROUP;
if (params->mode==e_special && gid==ownerGID) {
} else {
ace_v4->who.gid = gid;
}
+ } else if (sid_to_uid(&ace_nt->trustee, &uid)) {
+ if (params->mode==e_special && uid==ownerUID) {
+ ace_v4->flags |= SMB_ACE4_ID_SPECIAL;
+ ace_v4->who.special_id = SMB_ACE4_WHO_OWNER;
+ } else {
+ ace_v4->who.uid = uid;
+ }
+ } else {
+ DEBUG(1, ("nfs4_acls.c: file [%s]: could not "
+ "convert %s to uid or gid\n", filename,
+ sid_string_dbg(&ace_nt->trustee)));
+ return False;
}
}
static SMB4ACL_T *smbacl4_win2nfs4(
const char *filename,
- const SEC_ACL *dacl,
+ const struct security_acl *dacl,
smbacl4_vfs_params *pparams,
uid_t ownerUID,
gid_t ownerGID
NTSTATUS smb_set_nt_acl_nfs4(files_struct *fsp,
uint32 security_info_sent,
- const SEC_DESC *psd,
+ const struct security_descriptor *psd,
set_nfs4acl_native_fn_t set_nfs4_native)
{
smbacl4_vfs_params params;
DEBUG(10, ("smb_set_nt_acl_nfs4 invoked for %s\n", fsp_str_dbg(fsp)));
- if ((security_info_sent & (DACL_SECURITY_INFORMATION |
- GROUP_SECURITY_INFORMATION | OWNER_SECURITY_INFORMATION)) == 0)
+ if ((security_info_sent & (SECINFO_DACL |
+ SECINFO_GROUP | SECINFO_OWNER)) == 0)
{
DEBUG(9, ("security_info_sent (0x%x) ignored\n",
security_info_sent));
- return NT_STATUS_OK; /* won't show error - later to be refined... */
+ return NT_STATUS_OK; /* won't show error - later to be
+ * refined... */
}
/* Special behaviours */
if (params.do_chown) {
/* chown logic is a copy/paste from posix_acl.c:set_nt_acl */
- NTSTATUS status = unpack_nt_owners(fsp->conn, &newUID, &newGID, security_info_sent, psd);
+ NTSTATUS status = unpack_nt_owners(fsp->conn, &newUID, &newGID,
+ security_info_sent, psd);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(8, ("unpack_nt_owners failed"));
return status;
if (((newUID != (uid_t)-1) && (sbuf.st_ex_uid != newUID)) ||
((newGID != (gid_t)-1) && (sbuf.st_ex_gid != newGID))) {
- if(try_chown(fsp->conn, fsp->fsp_name, newUID,
- newGID)) {
+ status = try_chown(fsp, newUID, newGID);
+ if (!NT_STATUS_IS_OK(status)) {
DEBUG(3,("chown %s, %u, %u failed. Error = "
"%s.\n", fsp_str_dbg(fsp),
(unsigned int)newUID,
(unsigned int)newGID,
- strerror(errno)));
- return map_nt_error_from_unix(errno);
+ nt_errstr(status)));
+ return status;
}
DEBUG(10,("chown %s, %u, %u succeeded.\n",
}
}
- if (!(security_info_sent & DACL_SECURITY_INFORMATION) || psd->dacl ==NULL) {
- DEBUG(10, ("no dacl found; security_info_sent = 0x%x\n", security_info_sent));
+ if (!(security_info_sent & SECINFO_DACL) || psd->dacl ==NULL) {
+ DEBUG(10, ("no dacl found; security_info_sent = 0x%x\n",
+ security_info_sent));
return NT_STATUS_OK;
}
}
if (result!=True) {
errno = saved_errno;
- DEBUG(10, ("set_nfs4_native failed with %s\n", strerror(errno)));
+ DEBUG(10, ("set_nfs4_native failed with %s\n",
+ strerror(errno)));
return map_nt_error_from_unix(errno);
}
git.samba.org / kai / samba.git / blobdiff