diff options
Diffstat (limited to 'source4/torture/rpc/dssync.c')
| -rw-r--r-- | source4/torture/rpc/dssync.c | 125 |
1 files changed, 9 insertions, 116 deletions
diff --git a/source4/torture/rpc/dssync.c b/source4/torture/rpc/dssync.c index 1aaf914ceb..b47564cc91 100644 --- a/source4/torture/rpc/dssync.c +++ b/source4/torture/rpc/dssync.c @@ -30,6 +30,7 @@ #include "torture/ldap/proto.h" #include "libcli/auth/libcli_auth.h" #include "../lib/crypto/crypto.h" +#include "../libcli/drsuapi/drsuapi.h" #include "auth/credentials/credentials.h" #include "libcli/auth/libcli_auth.h" #include "auth/gensec/gensec.h" @@ -338,119 +339,6 @@ static bool test_GetInfo(struct torture_context *tctx, struct DsSyncTest *ctx) return ret; } -static DATA_BLOB decrypt_blob(TALLOC_CTX *mem_ctx, - const DATA_BLOB *gensec_skey, - bool rcrypt, - struct drsuapi_DsReplicaObjectIdentifier *id, - uint32_t rid, - const DATA_BLOB *buffer) -{ - DATA_BLOB confounder; - DATA_BLOB enc_buffer; - - struct MD5Context md5; - uint8_t _enc_key[16]; - DATA_BLOB enc_key; - - DATA_BLOB dec_buffer; - - uint32_t crc32_given; - uint32_t crc32_calc; - DATA_BLOB checked_buffer; - - DATA_BLOB plain_buffer; - - /* - * the combination "c[3] s[1] e[1] d[0]..." - * was successful!!!!!!!!!!!!!!!!!!!!!!!!!! - */ - - /* - * the first 16 bytes at the beginning are the confounder - * followed by the 4 byte crc32 checksum - */ - if (buffer->length < 20) { - return data_blob_const(NULL, 0); - } - confounder = data_blob_const(buffer->data, 16); - enc_buffer = data_blob_const(buffer->data + 16, buffer->length - 16); - - /* - * build the encryption key md5 over the session key followed - * by the confounder - * - * here the gensec session key is used and - * not the dcerpc ncacn_ip_tcp "SystemLibraryDTC" key! - */ - enc_key = data_blob_const(_enc_key, sizeof(_enc_key)); - MD5Init(&md5); - MD5Update(&md5, gensec_skey->data, gensec_skey->length); - MD5Update(&md5, confounder.data, confounder.length); - MD5Final(enc_key.data, &md5); - - /* - * copy the encrypted buffer part and - * decrypt it using the created encryption key using arcfour - */ - dec_buffer = data_blob_talloc(mem_ctx, enc_buffer.data, enc_buffer.length); - if (!dec_buffer.data) { - return data_blob_const(NULL, 0); - } - arcfour_crypt_blob(dec_buffer.data, dec_buffer.length, &enc_key); - - /* - * the first 4 byte are the crc32 checksum - * of the remaining bytes - */ - crc32_given = IVAL(dec_buffer.data, 0); - crc32_calc = crc32_calc_buffer(dec_buffer.data + 4 , dec_buffer.length - 4); - if (crc32_given != crc32_calc) { - DEBUG(0,("CRC32: given[0x%08X] calc[0x%08X]\n", - crc32_given, crc32_calc)); - return data_blob_const(NULL, 0); - } - checked_buffer = data_blob_talloc(mem_ctx, dec_buffer.data + 4, dec_buffer.length - 4); - if (!checked_buffer.data) { - return data_blob_const(NULL, 0); - } - - /* - * some attributes seem to be in a usable form after this decryption - * (supplementalCredentials, priorValue, currentValue, trustAuthOutgoing, - * trustAuthIncoming, initialAuthOutgoing, initialAuthIncoming) - * At least supplementalCredentials contains plaintext - * like "Primary:Kerberos" (in unicode form) - * - * some attributes seem to have some additional encryption - * dBCSPwd, unicodePwd, ntPwdHistory, lmPwdHistory - * - * it's the sam_rid_crypt() function, as the value is constant, - * so it doesn't depend on sessionkeys. - */ - if (rcrypt) { - uint32_t i, num_hashes; - - if ((checked_buffer.length % 16) != 0) { - return data_blob_const(NULL, 0); - } - - plain_buffer = data_blob_talloc(mem_ctx, checked_buffer.data, checked_buffer.length); - if (!plain_buffer.data) { - return data_blob_const(NULL, 0); - } - - num_hashes = plain_buffer.length / 16; - for (i = 0; i < num_hashes; i++) { - uint32_t offset = i * 16; - sam_rid_crypt(rid, checked_buffer.data + offset, plain_buffer.data + offset, 0); - } - } else { - plain_buffer = checked_buffer; - } - - return plain_buffer; -} - static void test_analyse_objects(struct torture_context *tctx, struct DsSyncTest *ctx, const DATA_BLOB *gensec_skey, @@ -481,6 +369,7 @@ static void test_analyse_objects(struct torture_context *tctx, } for (i=0; i < cur->object.attribute_ctr.num_attributes; i++) { + WERROR werr; const char *name = NULL; bool rcrypt = false; DATA_BLOB *enc_data = NULL; @@ -549,9 +438,13 @@ static void test_analyse_objects(struct torture_context *tctx, enc_data = attr->value_ctr.values[0].blob; ZERO_STRUCT(plain_data); - plain_data = decrypt_blob(ctx, gensec_skey, rcrypt, - cur->object.identifier, rid, - enc_data); + werr = drsuapi_decrypt_attribute_value(ctx, gensec_skey, rcrypt, + rid, + enc_data, &plain_data); + if (!W_ERROR_IS_OK(werr)) { + DEBUG(0, ("Failed to decrypt %s\n", name)); + continue; + } if (!dn_printed) { object_id++; DEBUG(0,("DN[%u] %s\n", object_id, dn)); |