From a089728102db1602cb96b01049aee0222f077444 Mon Sep 17 00:00:00 2001 From: "Steinar H. Gunderson" Date: Sun, 6 Feb 2005 13:49:37 +0000 Subject: [PATCH] Remove lots of licensing stuff we didn't need after all. --- Makefile | 2 +- licence.c | 105 --------------------------------------------------- secure.c | 110 +++++++++--------------------------------------------- 3 files changed, 18 insertions(+), 199 deletions(-) delete mode 100644 licence.c diff --git a/Makefile b/Makefile index 32a6404..362807c 100644 --- a/Makefile +++ b/Makefile @@ -3,7 +3,7 @@ CFLAGS=-g -Wall LIBS=-lcrypto all: rdpsrv protodiff -OBJS=rdpsrv.o iso.o tcp.o util.o mcs.o secure.o channels.o rdp.o licence.o rdp5.o +OBJS=rdpsrv.o iso.o tcp.o util.o mcs.o secure.o channels.o rdp.o rdp5.o OBJS_PROTODIFF=protodiff.o tcp.o util.o rdpsrv: $(OBJS) diff --git a/licence.c b/licence.c deleted file mode 100644 index 28c035b..0000000 --- a/licence.c +++ /dev/null @@ -1,105 +0,0 @@ -/* - rdesktop: A Remote Desktop Protocol client. - RDP licensing negotiation - Copyright (C) Matthew Chapman 1999-2002 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include "rdesktop.h" - -#include - -extern char g_username[16]; -extern char hostname[16]; - -static uint8 g_licence_key[16]; -static uint8 g_licence_sign_key[16]; - -BOOL g_licence_issued = False; - -/* Generate a session key and RC4 keys, given client and server randoms */ -void -licence_generate_keys(uint8 * client_key, uint8 * server_key, uint8 * client_rsa) -{ - uint8 session_key[48]; - uint8 temp_hash[48]; - - /* Generate session key - two rounds of sec_hash_48 */ - sec_hash_48(temp_hash, client_rsa, client_key, server_key, 65); - sec_hash_48(session_key, temp_hash, server_key, client_key, 65); - - /* Store first 16 bytes of session key, for generating signatures */ - memcpy(g_licence_sign_key, session_key, 16); - - /* Generate RC4 key */ - sec_hash_16(g_licence_key, &session_key[16], client_key, server_key); - - { - int i; - - printf("g_license_key:\n"); - for (i = 0; i < 16; ++i) - printf(" 0x%02x", g_licence_key[i]); - printf("\n"); - - printf("g_license_sign_key:\n"); - for (i = 0; i < 16; ++i) - printf(" 0x%02x", g_licence_sign_key[i]); - printf("\n"); - } -} - -// "TEST" in UTF-16 -unsigned char license_token[] = { - 0x54, 0x00, 0x45, 0x00, 0x53, 0x00, 0x54, 0x00, 0x00, 0x00 -}; - -void -send_authreq() -{ - RC4_KEY crypt_key; - uint8 in_token[LICENCE_TOKEN_SIZE], encrypt_token[LICENCE_TOKEN_SIZE]; - uint8 signature[LICENCE_SIGNATURE_SIZE]; - - STREAM s = sec_init(38, SEC_LICENCE_NEG); - - out_uint8(s, LICENCE_TAG_AUTHREQ); - out_uint8(s, 3); // version - out_uint16_le(s, 38); // length - - // unknown - out_uint16_le(s, 0xffff); - out_uint16_le(s, 0xffff); - out_uint16_le(s, 0x0000); - - out_uint16_le(s, LICENCE_TOKEN_SIZE); - memcpy(in_token, license_token, LICENCE_TOKEN_SIZE); - - // encrypt the token - RC4_set_key(&crypt_key, 16, g_licence_key); - RC4(&crypt_key, LICENCE_TOKEN_SIZE, in_token, encrypt_token); - - out_uint8p(s, encrypt_token, LICENCE_TOKEN_SIZE); - - // what are we supposed to sign here, really? guess at the - // token, nothing else has been sent... - sec_sign(signature, 16, g_licence_sign_key, 16, encrypt_token, LICENCE_TOKEN_SIZE); - out_uint8p(s, signature, LICENCE_SIGNATURE_SIZE); - - s_mark_end(s); - sec_send(s, SEC_LICENCE_NEG); -} - diff --git a/secure.c b/secure.c index 45cebf0..cf98676 100644 --- a/secure.c +++ b/secure.c @@ -31,7 +31,7 @@ extern int g_width; extern int g_height; extern int keylayout; extern BOOL g_encryption; -extern BOOL g_licence_issued; +BOOL g_licence_issued; extern BOOL g_use_rdp5; extern BOOL g_console_session; extern int g_server_bpp; @@ -736,21 +736,9 @@ sec_process_mcs_data(STREAM s) extern unsigned char cacert[]; extern BOOL g_licence_issued; -unsigned char demand_license[] = { - 0x01, 0x03, 0x86, 0x00, 0x9c, 0x6e, 0xef, 0x5a, 0x26, 0x45, 0x88, 0x86, 0x0e, 0xdf, 0xa4, 0x4a, - 0x45, 0xc7, 0x5a, 0x4c, 0xec, 0x33, 0xff, 0x4c, 0xd8, 0x4b, 0xd2, 0x4e, 0xd2, 0x22, 0x16, 0xde, - 0x1e, 0x5b, 0x06, 0x6e, 0x00, 0x00, 0x05, 0x00, 0x2c, 0x00, 0x00, 0x00, 0x4d, 0x00, 0x69, 0x00, - 0x63, 0x00, 0x72, 0x00, 0x6f, 0x00, 0x73, 0x00, 0x6f, 0x00, 0x66, 0x00, 0x74, 0x00, 0x20, 0x00, - 0x43, 0x00, 0x6f, 0x00, 0x72, 0x00, 0x70, 0x00, 0x6f, 0x00, 0x72, 0x00, 0x61, 0x00, 0x74, 0x00, - 0x69, 0x00, 0x6f, 0x00, 0x6e, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x41, 0x00, 0x30, 0x00, - 0x32, 0x00, 0x00, 0x00, 0x0d, 0x00, 0x04, 0x00, 0x01, 0x00, 0x00, 0x00, 0x04, 0xf6, 0x00, 0x00, - 0x01, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x0e, 0x00, 0x6d, 0x69, 0x63, 0x72, 0x6f, 0x73, 0x6f, 0x66, - 0x74, 0x2e, 0x63, 0x6f, 0x6d, 0x00 -}; unsigned char result_license[] = { 0xff, 0x03, 0x10, 0x00, 0x07, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0xa0, 0x5f, 0x00, 0x00 }; - unsigned char demand_active[] = { 0x24, 0x01, 0x11, 0x00, 0xea, 0x03, 0xea, 0x03, 0x01, 0x00, 0x04, 0x00, 0x0e, 0x01, 0x52, 0x44, 0x50, 0x00, 0x09, 0x00, 0x00, 0x00, 0x09, 0x00, 0x08, 0x00, 0xea, 0x03, 0x40, 0xe4, 0x01, 0x00, @@ -777,60 +765,6 @@ unsigned char demand_active[] = { #define EXPECT16(value) { in_uint16_le(s, unknown); if (unknown != (value)) printf("Unknown value on code line %u; expected 0x%x, got 0x%x\n", __LINE__, (value), unknown); } #define EXPECT32(value) { in_uint32_le(s, unknown); if (unknown != (value)) printf("Unknown value on code line %u; expected 0x%x, got 0x%x\n", __LINE__, (value), unknown); } -void -process_presented_license(STREAM s) -{ - unsigned char client_license_random[SEC_RANDOM_SIZE]; - unsigned char client_license_rsa_data[SEC_MODULUS_SIZE]; - - uint16 length, license_size; - uint32 unknown; - uint8 *license, hwid[LICENCE_HWID_SIZE], signature[LICENCE_SIGNATURE_SIZE]; - int i; - - EXPECT8(2); // version - in_uint16_le(s, length); - - EXPECT32(1); // unknown - EXPECT16(0); - EXPECT16(0x0201); - - in_uint8a(s, client_license_random, SEC_RANDOM_SIZE); - EXPECT16(0); - EXPECT16(SEC_MODULUS_SIZE + SEC_PADDING_SIZE); - in_uint8a(s, client_license_rsa_data, SEC_MODULUS_SIZE); - in_uint8s(s, SEC_PADDING_SIZE); - - EXPECT16(1); - in_uint16_le(s, license_size); - - license = (uint8 *)xmalloc(license_size); - in_uint8a(s, license, license_size); - - printf("Received license:\n"); - for (i = 0; i < license_size; ++i) - printf(" 0x%02x", license[i]); - printf("\n"); - - EXPECT16(1); - EXPECT16(LICENCE_HWID_SIZE); - in_uint8a(s, hwid, LICENCE_HWID_SIZE); - - printf("License hardware ID:\n"); - for (i = 0; i < LICENCE_HWID_SIZE; ++i) - printf(" 0x%02x", hwid[i]); - printf("\n"); - - in_uint8a(s, signature, LICENCE_SIGNATURE_SIZE); - - if (!s_check_end(s)) { - printf("Unknown data at the end of presented license!"); - } - - // now we can generate the keys we need - licence_generate_keys(client_license_random, demand_license + 4, client_license_rsa_data); -// send_authreq(); -} /* Receive secure transport packet */ STREAM @@ -856,26 +790,8 @@ sec_recv(void) { uint8 tag; in_uint8(s, tag); - - if (tag == LICENCE_TAG_PRESENT) { - process_presented_license(s); - - { - STREAM s; - s = sec_init(SEC_LICENCE_NEG, sizeof(result_license)); - out_uint8p(s, result_license, sizeof(result_license)); - s_mark_end(s); - sec_send(s, SEC_LICENCE_NEG); - } - - { - STREAM s; - s = sec_init(SEC_ENCRYPT, sizeof(demand_active)); - out_uint8p(s, demand_active, sizeof(demand_active)); - s_mark_end(s); - sec_send(s, SEC_ENCRYPT); - } - } + + printf("License tag %x, unimplemented\n", tag); return NULL; } @@ -883,17 +799,25 @@ sec_recv(void) if (sec_flags & SEC_LOGON_INFO) { rdp_get_logon_info(s); - - // demand a license + + // say "licensing is OK", then demand + // activity { STREAM s; - - s = sec_init(SEC_LICENCE_NEG, sizeof(demand_license)); - out_uint8p(s, demand_license, sizeof(demand_license)); + s = sec_init(SEC_LICENCE_NEG, sizeof(result_license)); + out_uint8p(s, result_license, sizeof(result_license)); s_mark_end(s); sec_send(s, SEC_LICENCE_NEG); } - + + { + STREAM s; + s = sec_init(SEC_ENCRYPT, sizeof(demand_active)); + out_uint8p(s, demand_active, sizeof(demand_active)); + s_mark_end(s); + sec_send(s, SEC_ENCRYPT); + } + return NULL; } -- 2.39.5