diff options
| -rw-r--r-- | source3/libnet/libnet_dssync.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/source3/libnet/libnet_dssync.c b/source3/libnet/libnet_dssync.c index 0866db59bd..ef6f161f34 100644 --- a/source3/libnet/libnet_dssync.c +++ b/source3/libnet/libnet_dssync.c @@ -59,6 +59,125 @@ NTSTATUS libnet_dssync_init_context(TALLOC_CTX *mem_ctx, /**************************************************************** ****************************************************************/ +static DATA_BLOB *decrypt_attr_val(TALLOC_CTX *mem_ctx, + DATA_BLOB *session_key, + uint32_t rid, + enum drsuapi_DsAttributeId id, + DATA_BLOB *raw_data) +{ + bool rcrypt = false; + DATA_BLOB out_data; + + ZERO_STRUCT(out_data); + + switch (id) { + case DRSUAPI_ATTRIBUTE_dBCSPwd: + case DRSUAPI_ATTRIBUTE_unicodePwd: + case DRSUAPI_ATTRIBUTE_ntPwdHistory: + case DRSUAPI_ATTRIBUTE_lmPwdHistory: + rcrypt = true; + break; + case DRSUAPI_ATTRIBUTE_supplementalCredentials: + case DRSUAPI_ATTRIBUTE_priorValue: + case DRSUAPI_ATTRIBUTE_currentValue: + case DRSUAPI_ATTRIBUTE_trustAuthOutgoing: + case DRSUAPI_ATTRIBUTE_trustAuthIncoming: + case DRSUAPI_ATTRIBUTE_initialAuthOutgoing: + case DRSUAPI_ATTRIBUTE_initialAuthIncoming: + break; + default: + return raw_data; + } + + out_data = decrypt_drsuapi_blob(mem_ctx, session_key, rcrypt, + rid, raw_data); + + if (out_data.length) { + return (DATA_BLOB *)talloc_memdup(mem_ctx, &out_data, sizeof(DATA_BLOB)); + } + + return raw_data; +} + +/**************************************************************** +****************************************************************/ + +static void parse_obj_identifier(struct drsuapi_DsReplicaObjectIdentifier *id, + uint32_t *rid) +{ + if (!id || !rid) { + return; + } + + *rid = 0; + + if (id->sid.num_auths > 0) { + *rid = id->sid.sub_auths[id->sid.num_auths - 1]; + } +} + +/**************************************************************** +****************************************************************/ + +static void parse_obj_attribute(TALLOC_CTX *mem_ctx, + DATA_BLOB *session_key, + uint32_t rid, + struct drsuapi_DsReplicaAttribute *attr) +{ + int i = 0; + + for (i=0; i<attr->value_ctr.num_values; i++) { + + DATA_BLOB *plain_data = NULL; + + plain_data = decrypt_attr_val(mem_ctx, + session_key, + rid, + attr->attid, + attr->value_ctr.values[i].blob); + + attr->value_ctr.values[i].blob = plain_data; + } +} + +/**************************************************************** +****************************************************************/ + +static void libnet_dssync_decrypt_attributes(TALLOC_CTX *mem_ctx, + DATA_BLOB *session_key, + struct drsuapi_DsReplicaObjectListItemEx *cur) +{ + for (; cur; cur = cur->next_object) { + + uint32_t i; + uint32_t rid = 0; + + parse_obj_identifier(cur->object.identifier, &rid); + + for (i=0; i < cur->object.attribute_ctr.num_attributes; i++) { + + struct drsuapi_DsReplicaAttribute *attr; + + attr = &cur->object.attribute_ctr.attributes[i]; + + if (attr->value_ctr.num_values < 1) { + continue; + } + + if (!attr->value_ctr.values[0].blob) { + continue; + } + + parse_obj_attribute(mem_ctx, + session_key, + rid, + attr); + } + } +} +/**************************************************************** +****************************************************************/ + static NTSTATUS libnet_dssync_bind(TALLOC_CTX *mem_ctx, struct dssync_context *ctx) { @@ -287,6 +406,10 @@ static NTSTATUS libnet_dssync_process(TALLOC_CTX *mem_ctx, (long long)ctr1->new_highwatermark.tmp_highest_usn, (long long)ctr1->new_highwatermark.highest_usn)); + libnet_dssync_decrypt_attributes(mem_ctx, + &ctx->session_key, + ctr1->first_object); + if (ctx->processing_fn) { status = ctx->processing_fn(mem_ctx, ctr1->first_object, @@ -320,6 +443,10 @@ static NTSTATUS libnet_dssync_process(TALLOC_CTX *mem_ctx, (long long)ctr6->new_highwatermark.tmp_highest_usn, (long long)ctr6->new_highwatermark.highest_usn)); + libnet_dssync_decrypt_attributes(mem_ctx, + &ctx->session_key, + ctr6->first_object); + if (ctx->processing_fn) { status = ctx->processing_fn(mem_ctx, ctr6->first_object, |