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-rw-r--r--source4/dsdb/samdb/ldb_modules/ridalloc.c60
1 files changed, 36 insertions, 24 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/ridalloc.c b/source4/dsdb/samdb/ldb_modules/ridalloc.c
index 87642592c4..02737dd88b 100644
--- a/source4/dsdb/samdb/ldb_modules/ridalloc.c
+++ b/source4/dsdb/samdb/ldb_modules/ridalloc.c
@@ -196,9 +196,9 @@ static int ridalloc_create_rid_set_ntds(struct ldb_module *module, TALLOC_CTX *m
talloc_free(tmp_ctx);
return ret;
}
- /* TODO: check if the RID Manager adds these fields, or if the
- client DC does it */
- ret = ldb_msg_add_fmt(msg, "rIDPreviousAllocationPool", "%llu", (unsigned long long)dc_pool);
+
+ /* w2k8-r2 sets these to zero when first created */
+ ret = ldb_msg_add_fmt(msg, "rIDPreviousAllocationPool", "0");
if (ret != LDB_SUCCESS) {
talloc_free(tmp_ctx);
return ret;
@@ -208,7 +208,7 @@ static int ridalloc_create_rid_set_ntds(struct ldb_module *module, TALLOC_CTX *m
talloc_free(tmp_ctx);
return ret;
}
- ret = ldb_msg_add_fmt(msg, "rIDNextRID", "%lu", (unsigned long)(dc_pool & 0xFFFFFFFF));
+ ret = ldb_msg_add_fmt(msg, "rIDNextRID", "0");
if (ret != LDB_SUCCESS) {
talloc_free(tmp_ctx);
return ret;
@@ -300,7 +300,6 @@ static int ridalloc_refresh_rid_set_ntds(struct ldb_module *module,
{
TALLOC_CTX *tmp_ctx = talloc_new(module);
struct ldb_dn *server_dn, *machine_dn, *rid_set_dn;
- struct ldb_message *msg;
struct ldb_context *ldb = ldb_module_get_ctx(module);
int ret;
@@ -333,17 +332,7 @@ static int ridalloc_refresh_rid_set_ntds(struct ldb_module *module,
return ret;
}
- msg = ldb_msg_new(tmp_ctx);
- msg->dn = rid_set_dn;
-
- ret = ldb_msg_add_fmt(msg, "rIDAllocationPool", "%llu", (unsigned long long)*new_pool);
- if (ret != LDB_SUCCESS) {
- talloc_free(tmp_ctx);
- return ret;
- }
- msg->elements[0].flags = LDB_FLAG_MOD_REPLACE;
-
- ret = dsdb_module_modify(module, msg, 0);
+ ret = dsdb_module_set_integer(module, rid_set_dn, "rIDAllocationPool", *new_pool);
if (ret != LDB_SUCCESS) {
ldb_asprintf_errstring(ldb, "Failed to modify RID Set object %s - %s",
ldb_dn_get_linearized(rid_set_dn), ldb_errstring(ldb));
@@ -438,8 +427,8 @@ int ridalloc_allocate_rid(struct ldb_module *module, uint32_t *rid)
prev_alloc_pool = ldb_msg_find_attr_as_uint64(res->msgs[0], "rIDPreviousAllocationPool", 0);
alloc_pool = ldb_msg_find_attr_as_uint64(res->msgs[0], "rIDAllocationPool", 0);
- prev_rid = ldb_msg_find_attr_as_int(res->msgs[0], "rIDNextRID", -1);
- if (prev_rid == -1 || alloc_pool == 0) {
+ prev_rid = ldb_msg_find_attr_as_int(res->msgs[0], "rIDNextRID", 0);
+ if (alloc_pool == 0) {
ldb_asprintf_errstring(ldb, __location__ ": Bad RID Set %s",
ldb_dn_get_linearized(rid_set_dn));
talloc_free(tmp_ctx);
@@ -449,8 +438,12 @@ int ridalloc_allocate_rid(struct ldb_module *module, uint32_t *rid)
prev_alloc_pool_lo = prev_alloc_pool & 0xFFFFFFFF;
prev_alloc_pool_hi = prev_alloc_pool >> 32;
if (prev_rid >= prev_alloc_pool_hi) {
- ret = dsdb_module_constrainted_update_integer(module, rid_set_dn, "rIDPreviousAllocationPool",
- prev_alloc_pool, alloc_pool);
+ if (prev_alloc_pool == 0) {
+ ret = dsdb_module_set_integer(module, rid_set_dn, "rIDPreviousAllocationPool", alloc_pool);
+ } else {
+ ret = dsdb_module_constrainted_update_integer(module, rid_set_dn, "rIDPreviousAllocationPool",
+ prev_alloc_pool, alloc_pool);
+ }
if (ret != LDB_SUCCESS) {
ldb_asprintf_errstring(ldb, __location__ ": Failed to update rIDPreviousAllocationPool on %s - %s",
ldb_dn_get_linearized(rid_set_dn), ldb_errstring(ldb));
@@ -477,16 +470,35 @@ int ridalloc_allocate_rid(struct ldb_module *module, uint32_t *rid)
talloc_free(tmp_ctx);
return ret;
}
- (*rid) = (new_pool & 0xFFFFFFFF);
+ prev_alloc_pool = new_pool;
+ prev_alloc_pool_lo = prev_alloc_pool & 0xFFFFFFFF;
+ prev_alloc_pool_hi = prev_alloc_pool >> 32;
+ (*rid) = prev_alloc_pool_lo;
} else {
/* despite the name, rIDNextRID is the value of the last user
* added by this DC, not the next available RID */
- (*rid) = prev_rid + 1;
+ if (prev_rid == 0) {
+ (*rid) = prev_alloc_pool_lo;
+ } else {
+ (*rid) = prev_rid + 1;
+ }
+ }
+
+ if (*rid < prev_alloc_pool_lo || *rid > prev_alloc_pool_hi) {
+ ldb_asprintf_errstring(ldb, __location__ ": Bad rid chosen %u from range %u-%u",
+ (unsigned)*rid, (unsigned)prev_alloc_pool_lo,
+ (unsigned)prev_alloc_pool_hi);
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
}
/* now modify the RID Set to use up this RID using a
- * constrained delete/add */
- ret = dsdb_module_constrainted_update_integer(module, rid_set_dn, "rIDNextRID", prev_rid, *rid);
+ * constrained delete/add if possible */
+ if (prev_rid == 0) {
+ ret = dsdb_module_set_integer(module, rid_set_dn, "rIDNextRID", *rid);
+ } else {
+ ret = dsdb_module_constrainted_update_integer(module, rid_set_dn, "rIDNextRID", prev_rid, *rid);
+ }
talloc_free(tmp_ctx);
return ret;