static NTSTATUS idmap_ldap_sids_to_unixids(struct idmap_domain *dom,
struct id_map **ids)
{
LDAPMessage *entry = NULL;
NTSTATUS ret;
TALLOC_CTX *memctx;
struct idmap_ldap_context *ctx;
LDAPMessage *result = NULL;
const char *uidNumber;
const char *gidNumber;
const char **attr_list;
char *filter = NULL;
bool multi = False;
int idx = 0;
int bidx = 0;
int count;
int rc;
int i;
/* Only do query if we are online */
if (idmap_is_offline()) {
return NT_STATUS_FILE_IS_OFFLINE;
}
ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
memctx = talloc_new(ctx);
if ( ! memctx) {
DEBUG(0, ("Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
attr_list = get_attr_list(memctx, sidmap_attr_list);
if ( ! ids[1]) {
/* if we are requested just one mapping use the simple filter */
filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%s))",
LDAP_OBJ_IDMAP_ENTRY,
LDAP_ATTRIBUTE_SID,
sid_string_talloc(memctx, ids[0]->sid));
CHECK_ALLOC_DONE(filter);
DEBUG(10, ("Filter: [%s]\n", filter));
} else {
/* multiple mappings */
multi = True;
}
for (i = 0; ids[i]; i++) {
ids[i]->status = ID_UNKNOWN;
}
again:
if (multi) {
TALLOC_FREE(filter);
filter = talloc_asprintf(memctx,
"(&(objectClass=%s)(|",
LDAP_OBJ_IDMAP_ENTRY);
CHECK_ALLOC_DONE(filter);
bidx = idx;
for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) {
filter = talloc_asprintf_append_buffer(filter, "(%s=%s)",
LDAP_ATTRIBUTE_SID,
sid_string_talloc(memctx,
ids[idx]->sid));
CHECK_ALLOC_DONE(filter);
}
filter = talloc_asprintf_append_buffer(filter, "))");
CHECK_ALLOC_DONE(filter);
DEBUG(10, ("Filter: [%s]", filter));
} else {
bidx = 0;
idx = 1;
}
rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE,
filter, attr_list, 0, &result);
if (rc != LDAP_SUCCESS) {
DEBUG(3,("Failure looking up sids (%s)\n",
ldap_err2string(rc)));
ret = NT_STATUS_UNSUCCESSFUL;
goto done;
}
count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result);
if (count == 0) {
DEBUG(10, ("NO SIDs found\n"));
}
for (i = 0; i < count; i++) {
char *sidstr = NULL;
char *tmp = NULL;
enum id_type type;
struct id_map *map;
struct dom_sid sid;
uint32_t id;
if (i == 0) { /* first entry */
entry = ldap_first_entry(ctx->smbldap_state->ldap_struct,
result);
} else { /* following ones */
entry = ldap_next_entry(ctx->smbldap_state->ldap_struct,
entry);
}
if ( ! entry) {
DEBUG(2, ("ERROR: Unable to fetch ldap entries "
"from results\n"));
break;
}
/* first check if the SID is present */
sidstr = smbldap_talloc_single_attribute(
ctx->smbldap_state->ldap_struct,
entry, LDAP_ATTRIBUTE_SID, memctx);
if ( ! sidstr) { /* no sid ??, skip entry */
DEBUG(2, ("WARNING SID not found on entry\n"));
continue;
}
if ( ! string_to_sid(&sid, sidstr)) {
DEBUG(2, ("ERROR: Invalid SID on entry\n"));
TALLOC_FREE(sidstr);
continue;
}
map = idmap_find_map_by_sid(&ids[bidx], &sid);
if (!map) {
DEBUG(2, ("WARNING: couldn't find entry sid (%s) "
"in ids", sidstr));
TALLOC_FREE(sidstr);
continue;
}
/* now try to see if it is a uid, if not try with a gid
* (gid is more common, but in case both uidNumber and
* gidNumber are returned the SID is mapped to the uid
* not the gid) */
type = ID_TYPE_UID;
tmp = smbldap_talloc_single_attribute(
ctx->smbldap_state->ldap_struct,
entry, uidNumber, memctx);
if ( ! tmp) {
type = ID_TYPE_GID;
tmp = smbldap_talloc_single_attribute(
ctx->smbldap_state->ldap_struct,
entry, gidNumber, memctx);
}
if ( ! tmp) { /* no ids ?? */
DEBUG(5, ("no uidNumber, "
"nor gidNumber attributes found\n"));
TALLOC_FREE(sidstr);
continue;
}
id = strtoul(tmp, NULL, 10);
if (!idmap_unix_id_is_in_range(id, dom)) {
DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
"Filtered!\n", id,
dom->low_id, dom->high_id));
TALLOC_FREE(sidstr);
TALLOC_FREE(tmp);
continue;
}
TALLOC_FREE(tmp);
if (map->status == ID_MAPPED) {
DEBUG(1, ("WARNING: duplicate %s mapping in LDAP. "
"overwriting mapping %s -> %u with %s -> %u\n",
(type == ID_TYPE_UID) ? "UID" : "GID",
sidstr, map->xid.id, sidstr, id));
}
TALLOC_FREE(sidstr);
/* mapped */
map->xid.type = type;
map->xid.id = id;
map->status = ID_MAPPED;
DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_dbg(map->sid),
(unsigned long)map->xid.id, map->xid.type));
}
/* free the ldap results */
if (result) {
ldap_msgfree(result);
result = NULL;
}
if (multi && ids[idx]) { /* still some values to map */
goto again;
}
/*
* try to create new mappings for unmapped sids
*/
for (i = 0; ids[i]; i++) {
if (ids[i]->status != ID_MAPPED) {
ids[i]->status = ID_UNMAPPED;
if (ids[i]->sid != NULL) {
ret = idmap_ldap_new_mapping(dom, ids[i]);
if (!NT_STATUS_IS_OK(ret)) {
goto done;
}
}
}
}
ret = NT_STATUS_OK;
done:
talloc_free(memctx);
return ret;
}
static NTSTATUS idmap_ldap_allocate_id_internal(struct idmap_domain *dom,
struct unixid *xid)
{
TALLOC_CTX *mem_ctx;
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
int rc = LDAP_SERVER_DOWN;
int count = 0;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
LDAPMod **mods = NULL;
char *id_str;
char *new_id_str;
char *filter = NULL;
const char *dn = NULL;
const char **attr_list;
const char *type;
struct idmap_ldap_context *ctx;
/* Only do query if we are online */
if (idmap_is_offline()) {
return NT_STATUS_FILE_IS_OFFLINE;
}
ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
mem_ctx = talloc_new(ctx);
if (!mem_ctx) {
DEBUG(0, ("Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
/* get type */
switch (xid->type) {
case ID_TYPE_UID:
type = get_attr_key2string(idpool_attr_list,
LDAP_ATTR_UIDNUMBER);
break;
case ID_TYPE_GID:
type = get_attr_key2string(idpool_attr_list,
LDAP_ATTR_GIDNUMBER);
break;
default:
DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
return NT_STATUS_INVALID_PARAMETER;
}
filter = talloc_asprintf(mem_ctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
CHECK_ALLOC_DONE(filter);
attr_list = get_attr_list(mem_ctx, idpool_attr_list);
CHECK_ALLOC_DONE(attr_list);
DEBUG(10, ("Search of the id pool (filter: %s)\n", filter));
rc = smbldap_search(ctx->smbldap_state,
ctx->suffix,
LDAP_SCOPE_SUBTREE, filter,
attr_list, 0, &result);
if (rc != LDAP_SUCCESS) {
DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
goto done;
}
smbldap_talloc_autofree_ldapmsg(mem_ctx, result);
count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result);
if (count != 1) {
DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
goto done;
}
entry = ldap_first_entry(ctx->smbldap_state->ldap_struct, result);
dn = smbldap_talloc_dn(mem_ctx,
ctx->smbldap_state->ldap_struct,
entry);
if ( ! dn) {
goto done;
}
id_str = smbldap_talloc_single_attribute(
ctx->smbldap_state->ldap_struct,
entry, type, mem_ctx);
if (id_str == NULL) {
DEBUG(0,("%s attribute not found\n", type));
ret = NT_STATUS_UNSUCCESSFUL;
goto done;
}
xid->id = strtoul(id_str, NULL, 10);
/* make sure we still have room to grow */
switch (xid->type) {
case ID_TYPE_UID:
if (xid->id > dom->high_id) {
DEBUG(0,("Cannot allocate uid above %lu!\n",
(unsigned long)dom->high_id));
goto done;
}
break;
case ID_TYPE_GID:
if (xid->id > dom->high_id) {
DEBUG(0,("Cannot allocate gid above %lu!\n",
(unsigned long)dom->high_id));
goto done;
}
break;
default:
/* impossible */
goto done;
}
new_id_str = talloc_asprintf(mem_ctx, "%lu", (unsigned long)xid->id + 1);
if ( ! new_id_str) {
DEBUG(0,("Out of memory\n"));
ret = NT_STATUS_NO_MEMORY;
goto done;
}
smbldap_set_mod(&mods, LDAP_MOD_DELETE, type, id_str);
smbldap_set_mod(&mods, LDAP_MOD_ADD, type, new_id_str);
if (mods == NULL) {
DEBUG(0,("smbldap_set_mod() failed.\n"));
goto done;
}
DEBUG(10, ("Try to atomically increment the id (%s -> %s)\n",
id_str, new_id_str));
rc = smbldap_modify(ctx->smbldap_state, dn, mods);
ldap_mods_free(mods, True);
if (rc != LDAP_SUCCESS) {
DEBUG(1,("Failed to allocate new %s. "
"smbldap_modify() failed.\n", type));
goto done;
}
ret = NT_STATUS_OK;
done:
talloc_free(mem_ctx);
return ret;
}
static NTSTATUS idmap_ldap_set_hwm(struct unixid *xid)
{
TALLOC_CTX *ctx;
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
int rc = LDAP_SERVER_DOWN;
int count = 0;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
LDAPMod **mods = NULL;
char *new_id_str;
char *filter = NULL;
const char *dn = NULL;
const char **attr_list;
const char *type;
/* Only do query if we are online */
if (idmap_is_offline()) {
return NT_STATUS_FILE_IS_OFFLINE;
}
if ( ! idmap_alloc_ldap) {
return NT_STATUS_UNSUCCESSFUL;
}
ctx = talloc_new(idmap_alloc_ldap);
if ( ! ctx) {
DEBUG(0, ("Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
/* get type */
switch (xid->type) {
case ID_TYPE_UID:
type = get_attr_key2string(idpool_attr_list,
LDAP_ATTR_UIDNUMBER);
break;
case ID_TYPE_GID:
type = get_attr_key2string(idpool_attr_list,
LDAP_ATTR_GIDNUMBER);
break;
default:
DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
return NT_STATUS_INVALID_PARAMETER;
}
filter = talloc_asprintf(ctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
CHECK_ALLOC_DONE(filter);
attr_list = get_attr_list(ctx, idpool_attr_list);
CHECK_ALLOC_DONE(attr_list);
rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
idmap_alloc_ldap->suffix,
LDAP_SCOPE_SUBTREE, filter,
attr_list, 0, &result);
if (rc != LDAP_SUCCESS) {
DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
goto done;
}
talloc_autofree_ldapmsg(ctx, result);
count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct,
result);
if (count != 1) {
DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
goto done;
}
entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct,
result);
dn = smbldap_talloc_dn(ctx,
idmap_alloc_ldap->smbldap_state->ldap_struct,
entry);
if ( ! dn) {
goto done;
}
new_id_str = talloc_asprintf(ctx, "%lu", (unsigned long)xid->id);
if ( ! new_id_str) {
DEBUG(0,("Out of memory\n"));
ret = NT_STATUS_NO_MEMORY;
goto done;
}
smbldap_set_mod(&mods, LDAP_MOD_REPLACE, type, new_id_str);
if (mods == NULL) {
DEBUG(0,("smbldap_set_mod() failed.\n"));
goto done;
}
rc = smbldap_modify(idmap_alloc_ldap->smbldap_state, dn, mods);
ldap_mods_free(mods, True);
if (rc != LDAP_SUCCESS) {
DEBUG(1,("Failed to allocate new %s. "
"smbldap_modify() failed.\n", type));
goto done;
}
ret = NT_STATUS_OK;
done:
talloc_free(ctx);
return ret;
}
static NTSTATUS verify_idpool(struct idmap_domain *dom)
{
NTSTATUS ret;
TALLOC_CTX *mem_ctx;
LDAPMessage *result = NULL;
LDAPMod **mods = NULL;
const char **attr_list;
char *filter;
int count;
int rc;
struct idmap_ldap_context *ctx;
ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
mem_ctx = talloc_new(ctx);
if (mem_ctx == NULL) {
DEBUG(0, ("Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
filter = talloc_asprintf(mem_ctx, "(objectclass=%s)", LDAP_OBJ_IDPOOL);
CHECK_ALLOC_DONE(filter);
attr_list = get_attr_list(mem_ctx, idpool_attr_list);
CHECK_ALLOC_DONE(attr_list);
rc = smbldap_search(ctx->smbldap_state,
ctx->suffix,
LDAP_SCOPE_SUBTREE,
filter,
attr_list,
0,
&result);
if (rc != LDAP_SUCCESS) {
DEBUG(1, ("Unable to verify the idpool, "
"cannot continue initialization!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result);
ldap_msgfree(result);
if ( count > 1 ) {
DEBUG(0,("Multiple entries returned from %s (base == %s)\n",
filter, ctx->suffix));
ret = NT_STATUS_UNSUCCESSFUL;
goto done;
}
else if (count == 0) {
char *uid_str, *gid_str;
uid_str = talloc_asprintf(mem_ctx, "%lu",
(unsigned long)dom->low_id);
gid_str = talloc_asprintf(mem_ctx, "%lu",
(unsigned long)dom->low_id);
smbldap_set_mod(&mods, LDAP_MOD_ADD,
"objectClass", LDAP_OBJ_IDPOOL);
smbldap_set_mod(&mods, LDAP_MOD_ADD,
get_attr_key2string(idpool_attr_list,
LDAP_ATTR_UIDNUMBER),
uid_str);
smbldap_set_mod(&mods, LDAP_MOD_ADD,
get_attr_key2string(idpool_attr_list,
LDAP_ATTR_GIDNUMBER),
gid_str);
if (mods) {
rc = smbldap_modify(ctx->smbldap_state,
ctx->suffix,
mods);
ldap_mods_free(mods, True);
} else {
ret = NT_STATUS_UNSUCCESSFUL;
goto done;
}
}
ret = (rc == LDAP_SUCCESS)?NT_STATUS_OK:NT_STATUS_UNSUCCESSFUL;
done:
talloc_free(mem_ctx);
return ret;
}
static NTSTATUS idmap_ldap_get_hwm(struct unixid *xid)
{
TALLOC_CTX *memctx;
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
int rc = LDAP_SERVER_DOWN;
int count = 0;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
char *id_str;
char *filter = NULL;
const char **attr_list;
const char *type;
/* Only do query if we are online */
if (idmap_is_offline()) {
return NT_STATUS_FILE_IS_OFFLINE;
}
if ( ! idmap_alloc_ldap) {
return NT_STATUS_UNSUCCESSFUL;
}
memctx = talloc_new(idmap_alloc_ldap);
if ( ! memctx) {
DEBUG(0, ("Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
/* get type */
switch (xid->type) {
case ID_TYPE_UID:
type = get_attr_key2string(idpool_attr_list,
LDAP_ATTR_UIDNUMBER);
break;
case ID_TYPE_GID:
type = get_attr_key2string(idpool_attr_list,
LDAP_ATTR_GIDNUMBER);
break;
default:
DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
return NT_STATUS_INVALID_PARAMETER;
}
filter = talloc_asprintf(memctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
CHECK_ALLOC_DONE(filter);
attr_list = get_attr_list(memctx, idpool_attr_list);
CHECK_ALLOC_DONE(attr_list);
rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
idmap_alloc_ldap->suffix,
LDAP_SCOPE_SUBTREE, filter,
attr_list, 0, &result);
if (rc != LDAP_SUCCESS) {
DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
goto done;
}
talloc_autofree_ldapmsg(memctx, result);
count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct,
result);
if (count != 1) {
DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
goto done;
}
entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct,
result);
id_str = smbldap_talloc_single_attribute(idmap_alloc_ldap->smbldap_state->ldap_struct,
entry, type, memctx);
if ( ! id_str) {
DEBUG(0,("%s attribute not found\n", type));
goto done;
}
if ( ! id_str) {
DEBUG(0,("Out of memory\n"));
ret = NT_STATUS_NO_MEMORY;
goto done;
}
xid->id = strtoul(id_str, NULL, 10);
ret = NT_STATUS_OK;
done:
talloc_free(memctx);
return ret;
}
