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@ -1,7 +1,7 @@
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/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2004-2013
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* Copyright (C) Jay Sorg 2004-2014
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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@ -21,6 +21,12 @@
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#include "libxrdp.h"
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#include "log.h"
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#define LOG_LEVEL 1
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#define LLOG(_level, _args) \
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do { if (_level < LOG_LEVEL) { g_write _args ; } } while (0)
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#define LLOGLN(_level, _args) \
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do { if (_level < LOG_LEVEL) { g_writeln _args ; } } while (0)
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/* some compilers need unsigned char to avoid warnings */
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static tui8 g_pad_54[40] =
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{
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@ -100,6 +106,83 @@ static tui8 g_lic3[20] =
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0xf3, 0x99, 0x00, 0x00
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};
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static const tui8 g_fips_reverse_table[256] =
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{
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0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
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0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
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0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
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0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
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0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
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0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
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0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
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0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
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0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
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0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
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0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
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0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
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0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
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0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
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0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
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0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
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0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
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0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
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0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
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0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
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0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
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0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
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0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
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0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
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0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
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0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
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0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
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0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
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0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
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0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
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0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
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0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
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};
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static const tui8 g_fips_oddparity_table[256] =
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{
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0x01, 0x01, 0x02, 0x02, 0x04, 0x04, 0x07, 0x07,
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0x08, 0x08, 0x0b, 0x0b, 0x0d, 0x0d, 0x0e, 0x0e,
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0x10, 0x10, 0x13, 0x13, 0x15, 0x15, 0x16, 0x16,
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0x19, 0x19, 0x1a, 0x1a, 0x1c, 0x1c, 0x1f, 0x1f,
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0x20, 0x20, 0x23, 0x23, 0x25, 0x25, 0x26, 0x26,
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0x29, 0x29, 0x2a, 0x2a, 0x2c, 0x2c, 0x2f, 0x2f,
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0x31, 0x31, 0x32, 0x32, 0x34, 0x34, 0x37, 0x37,
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0x38, 0x38, 0x3b, 0x3b, 0x3d, 0x3d, 0x3e, 0x3e,
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0x40, 0x40, 0x43, 0x43, 0x45, 0x45, 0x46, 0x46,
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0x49, 0x49, 0x4a, 0x4a, 0x4c, 0x4c, 0x4f, 0x4f,
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0x51, 0x51, 0x52, 0x52, 0x54, 0x54, 0x57, 0x57,
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0x58, 0x58, 0x5b, 0x5b, 0x5d, 0x5d, 0x5e, 0x5e,
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0x61, 0x61, 0x62, 0x62, 0x64, 0x64, 0x67, 0x67,
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0x68, 0x68, 0x6b, 0x6b, 0x6d, 0x6d, 0x6e, 0x6e,
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0x70, 0x70, 0x73, 0x73, 0x75, 0x75, 0x76, 0x76,
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0x79, 0x79, 0x7a, 0x7a, 0x7c, 0x7c, 0x7f, 0x7f,
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0x80, 0x80, 0x83, 0x83, 0x85, 0x85, 0x86, 0x86,
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0x89, 0x89, 0x8a, 0x8a, 0x8c, 0x8c, 0x8f, 0x8f,
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0x91, 0x91, 0x92, 0x92, 0x94, 0x94, 0x97, 0x97,
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0x98, 0x98, 0x9b, 0x9b, 0x9d, 0x9d, 0x9e, 0x9e,
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0xa1, 0xa1, 0xa2, 0xa2, 0xa4, 0xa4, 0xa7, 0xa7,
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0xa8, 0xa8, 0xab, 0xab, 0xad, 0xad, 0xae, 0xae,
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0xb0, 0xb0, 0xb3, 0xb3, 0xb5, 0xb5, 0xb6, 0xb6,
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0xb9, 0xb9, 0xba, 0xba, 0xbc, 0xbc, 0xbf, 0xbf,
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0xc1, 0xc1, 0xc2, 0xc2, 0xc4, 0xc4, 0xc7, 0xc7,
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0xc8, 0xc8, 0xcb, 0xcb, 0xcd, 0xcd, 0xce, 0xce,
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0xd0, 0xd0, 0xd3, 0xd3, 0xd5, 0xd5, 0xd6, 0xd6,
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0xd9, 0xd9, 0xda, 0xda, 0xdc, 0xdc, 0xdf, 0xdf,
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0xe0, 0xe0, 0xe3, 0xe3, 0xe5, 0xe5, 0xe6, 0xe6,
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0xe9, 0xe9, 0xea, 0xea, 0xec, 0xec, 0xef, 0xef,
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0xf1, 0xf1, 0xf2, 0xf2, 0xf4, 0xf4, 0xf7, 0xf7,
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0xf8, 0xf8, 0xfb, 0xfb, 0xfd, 0xfd, 0xfe, 0xfe
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};
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static const tui8 g_fips_ivec[8] =
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{
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0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF
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};
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/*****************************************************************************/
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static void APP_CC
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hex_str_to_bin(char *in, char *out, int out_len)
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@ -145,22 +228,25 @@ xrdp_sec_create(struct xrdp_rdp *owner, struct trans *trans, int crypt_level,
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DEBUG((" in xrdp_sec_create"));
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self = (struct xrdp_sec *)g_malloc(sizeof(struct xrdp_sec), 1);
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self->rdp_layer = owner;
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self->rc4_key_size = 1; /* 1 = 40 bit, 2 = 128 bit */
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self->crypt_level = 1; /* 1, 2, 3 = low, medium, high */
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self->crypt_method = CRYPT_METHOD_NONE;
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self->crypt_level = CRYPT_LEVEL_NONE;
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switch (crypt_level)
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{
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case 1:
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self->rc4_key_size = 1;
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self->crypt_level = 1;
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case 1: /* low */
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self->crypt_method = CRYPT_METHOD_40BIT;
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self->crypt_level = CRYPT_LEVEL_LOW;
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break;
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case 2: /* medium */
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self->crypt_method = CRYPT_METHOD_40BIT;
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self->crypt_level = CRYPT_LEVEL_CLIENT_COMPATIBLE;
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break;
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case 2:
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self->rc4_key_size = 1;
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self->crypt_level = 2;
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case 3: /* high */
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self->crypt_method = CRYPT_METHOD_128BIT;
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self->crypt_level = CRYPT_LEVEL_HIGH;
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break;
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case 3:
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self->rc4_key_size = 2;
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self->crypt_level = 3;
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case 4: /* fips */
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self->crypt_method = CRYPT_METHOD_FIPS;
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self->crypt_level = CRYPT_LEVEL_FIPS;
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break;
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default:
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g_writeln("Fatal : Illegal crypt_level");
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@ -204,6 +290,8 @@ xrdp_sec_delete(struct xrdp_sec *self)
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xrdp_mcs_delete(self->mcs_layer);
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ssl_rc4_info_delete(self->decrypt_rc4_info); /* TODO clear all data */
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ssl_rc4_info_delete(self->encrypt_rc4_info); /* TODO clear all data */
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ssl_des3_info_delete(self->decrypt_fips_info);
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ssl_des3_info_delete(self->encrypt_fips_info);
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g_free(self->client_mcs_data.data);
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g_free(self->server_mcs_data.data);
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/* Crypto information must always be cleared */
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@ -221,7 +309,11 @@ xrdp_sec_init(struct xrdp_sec *self, struct stream *s)
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return 1;
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}
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if (self->crypt_level > 1)
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if (self->crypt_level == CRYPT_LEVEL_FIPS)
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{
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s_push_layer(s, sec_hdr, 4 + 4 + 8);
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}
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else if (self->crypt_level > CRYPT_LEVEL_LOW)
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{
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s_push_layer(s, sec_hdr, 4 + 8);
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}
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@ -285,34 +377,48 @@ xrdp_sec_update(char *key, char *update_key, int key_len)
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static void APP_CC
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xrdp_sec_decrypt(struct xrdp_sec *self, char *data, int len)
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{
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if (self->decrypt_use_count == 4096)
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if (self->crypt_method == CRYPT_METHOD_FIPS)
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{
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xrdp_sec_update(self->decrypt_key, self->decrypt_update_key,
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self->rc4_key_len);
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ssl_rc4_set_key(self->decrypt_rc4_info, self->decrypt_key,
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self->rc4_key_len);
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self->decrypt_use_count = 0;
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ssl_des3_decrypt(self->decrypt_fips_info, len, data, data);
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}
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else
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{
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if (self->decrypt_use_count == 4096)
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{
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xrdp_sec_update(self->decrypt_key, self->decrypt_update_key,
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self->rc4_key_len);
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ssl_rc4_set_key(self->decrypt_rc4_info, self->decrypt_key,
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self->rc4_key_len);
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self->decrypt_use_count = 0;
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}
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ssl_rc4_crypt(self->decrypt_rc4_info, data, len);
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self->decrypt_use_count++;
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ssl_rc4_crypt(self->decrypt_rc4_info, data, len);
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self->decrypt_use_count++;
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}
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}
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/*****************************************************************************/
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static void APP_CC
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xrdp_sec_encrypt(struct xrdp_sec *self, char *data, int len)
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{
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if (self->encrypt_use_count == 4096)
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if (self->crypt_method == CRYPT_METHOD_FIPS)
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{
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xrdp_sec_update(self->encrypt_key, self->encrypt_update_key,
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self->rc4_key_len);
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ssl_rc4_set_key(self->encrypt_rc4_info, self->encrypt_key,
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self->rc4_key_len);
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self->encrypt_use_count = 0;
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ssl_des3_encrypt(self->encrypt_fips_info, len, data, data);
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}
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else
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{
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if (self->encrypt_use_count == 4096)
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{
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xrdp_sec_update(self->encrypt_key, self->encrypt_update_key,
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self->rc4_key_len);
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ssl_rc4_set_key(self->encrypt_rc4_info, self->encrypt_key,
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self->rc4_key_len);
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self->encrypt_use_count = 0;
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}
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ssl_rc4_crypt(self->encrypt_rc4_info, data, len);
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self->encrypt_use_count++;
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ssl_rc4_crypt(self->encrypt_rc4_info, data, len);
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self->encrypt_use_count++;
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}
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}
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/*****************************************************************************/
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@ -695,6 +801,50 @@ xrdp_sec_hash_16(char *out, char *in, char *salt1, char *salt2)
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ssl_md5_info_delete(md5_info);
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}
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/*****************************************************************************/
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static void APP_CC
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fips_expand_key_bits(const char *in, char *out)
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{
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tui8 buf[32];
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tui8 c;
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int i;
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int b;
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int p;
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int r;
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/* reverse every byte in the key */
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for (i = 0; i < 21; i++)
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{
|
|
|
|
|
c = in[i];
|
|
|
|
|
buf[i] = g_fips_reverse_table[c];
|
|
|
|
|
}
|
|
|
|
|
/* insert a zero-bit after every 7th bit */
|
|
|
|
|
for (i = 0, b = 0; i < 24; i++, b += 7)
|
|
|
|
|
{
|
|
|
|
|
p = b / 8;
|
|
|
|
|
r = b % 8;
|
|
|
|
|
if (r == 0)
|
|
|
|
|
{
|
|
|
|
|
out[i] = buf[p] & 0xfe;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* c is accumulator */
|
|
|
|
|
c = buf[p] << r;
|
|
|
|
|
c |= buf[p + 1] >> (8 - r);
|
|
|
|
|
out[i] = c & 0xfe;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
/* reverse every byte */
|
|
|
|
|
/* alter lsb so the byte has odd parity */
|
|
|
|
|
for (i = 0; i < 24; i++)
|
|
|
|
|
{
|
|
|
|
|
c = out[i];
|
|
|
|
|
c = g_fips_reverse_table[c];
|
|
|
|
|
out[i] = g_fips_oddparity_table[c];
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
static void APP_CC
|
|
|
|
|
xrdp_sec_establish_keys(struct xrdp_sec *self)
|
|
|
|
@ -702,6 +852,46 @@ xrdp_sec_establish_keys(struct xrdp_sec *self)
|
|
|
|
|
char session_key[48];
|
|
|
|
|
char temp_hash[48];
|
|
|
|
|
char input[48];
|
|
|
|
|
char client_encrypt_key[32];
|
|
|
|
|
char client_decrypt_key[32];
|
|
|
|
|
const char *fips_ivec;
|
|
|
|
|
void *sha1;
|
|
|
|
|
|
|
|
|
|
if (self->crypt_method == CRYPT_METHOD_FIPS)
|
|
|
|
|
{
|
|
|
|
|
LLOGLN(0, ("xrdp_sec_establish_keys: fips"));
|
|
|
|
|
sha1 = ssl_sha1_info_create();
|
|
|
|
|
ssl_sha1_transform(sha1, self->client_random + 16, 16);
|
|
|
|
|
ssl_sha1_transform(sha1, self->server_random + 16, 16);
|
|
|
|
|
ssl_sha1_complete(sha1, client_encrypt_key);
|
|
|
|
|
client_encrypt_key[20] = client_encrypt_key[0];
|
|
|
|
|
fips_expand_key_bits(client_encrypt_key, self->fips_encrypt_key);
|
|
|
|
|
ssl_sha1_info_delete(sha1);
|
|
|
|
|
|
|
|
|
|
sha1 = ssl_sha1_info_create();
|
|
|
|
|
ssl_sha1_transform(sha1, self->client_random, 16);
|
|
|
|
|
ssl_sha1_transform(sha1, self->server_random, 16);
|
|
|
|
|
ssl_sha1_complete(sha1, client_decrypt_key);
|
|
|
|
|
client_decrypt_key[20] = client_decrypt_key[0];
|
|
|
|
|
fips_expand_key_bits(client_decrypt_key, self->fips_decrypt_key);
|
|
|
|
|
ssl_sha1_info_delete(sha1);
|
|
|
|
|
|
|
|
|
|
sha1 = ssl_sha1_info_create();
|
|
|
|
|
ssl_sha1_transform(sha1, client_decrypt_key, 20);
|
|
|
|
|
ssl_sha1_transform(sha1, client_encrypt_key, 20);
|
|
|
|
|
ssl_sha1_complete(sha1, self->fips_sign_key);
|
|
|
|
|
ssl_sha1_info_delete(sha1);
|
|
|
|
|
|
|
|
|
|
fips_ivec = (const char *) g_fips_ivec;
|
|
|
|
|
self->encrypt_fips_info =
|
|
|
|
|
ssl_des3_encrypt_info_create(self->fips_encrypt_key, fips_ivec);
|
|
|
|
|
self->decrypt_fips_info =
|
|
|
|
|
ssl_des3_encrypt_info_create(self->fips_decrypt_key, fips_ivec);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
LLOGLN(0, ("xrdp_sec_establish_keys: not fips"));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
g_memcpy(input, self->client_random, 24);
|
|
|
|
|
g_memcpy(input + 24, self->server_random, 24);
|
|
|
|
@ -715,7 +905,7 @@ xrdp_sec_establish_keys(struct xrdp_sec *self)
|
|
|
|
|
xrdp_sec_hash_16(self->decrypt_key, session_key + 32, self->client_random,
|
|
|
|
|
self->server_random);
|
|
|
|
|
|
|
|
|
|
if (self->rc4_key_size == 1)
|
|
|
|
|
if (self->crypt_method == CRYPT_METHOD_40BIT)
|
|
|
|
|
{
|
|
|
|
|
xrdp_sec_make_40bit(self->sign_key);
|
|
|
|
|
xrdp_sec_make_40bit(self->encrypt_key);
|
|
|
|
@ -758,12 +948,24 @@ xrdp_sec_recv(struct xrdp_sec *self, struct stream *s, int *chan)
|
|
|
|
|
|
|
|
|
|
if (flags & SEC_ENCRYPT) /* 0x08 */
|
|
|
|
|
{
|
|
|
|
|
if (!s_check_rem(s, 8))
|
|
|
|
|
if (self->crypt_method == CRYPT_METHOD_FIPS)
|
|
|
|
|
{
|
|
|
|
|
return 1;
|
|
|
|
|
if (!s_check_rem(s, 12))
|
|
|
|
|
{
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
in_uint8s(s, 12); /* len(2), version(1), pad(1), signature(8) */
|
|
|
|
|
xrdp_sec_decrypt(self, s->p, (int)(s->end - s->p));
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (!s_check_rem(s, 8))
|
|
|
|
|
{
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
in_uint8s(s, 8); /* signature(8) */
|
|
|
|
|
xrdp_sec_decrypt(self, s->p, (int)(s->end - s->p));
|
|
|
|
|
}
|
|
|
|
|
in_uint8s(s, 8); /* signature */
|
|
|
|
|
xrdp_sec_decrypt(self, s->p, (int)(s->end - s->p));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (flags & SEC_CLIENT_RANDOM) /* 0x01 */
|
|
|
|
@ -881,7 +1083,10 @@ xrdp_sec_send(struct xrdp_sec *self, struct stream *s, int chan)
|
|
|
|
|
DEBUG((" in xrdp_sec_send"));
|
|
|
|
|
s_pop_layer(s, sec_hdr);
|
|
|
|
|
|
|
|
|
|
if (self->crypt_level > 1)
|
|
|
|
|
if (self->crypt_level == CRYPT_LEVEL_FIPS)
|
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
else if (self->crypt_level > CRYPT_LEVEL_LOW)
|
|
|
|
|
{
|
|
|
|
|
out_uint32_le(s, SEC_ENCRYPT);
|
|
|
|
|
datalen = (int)((s->end - s->p) - 8);
|
|
|
|
@ -902,6 +1107,235 @@ xrdp_sec_send(struct xrdp_sec *self, struct stream *s, int chan)
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
/* http://msdn.microsoft.com/en-us/library/cc240510.aspx
|
|
|
|
|
2.2.1.3.2 Client Core Data (TS_UD_CS_CORE) */
|
|
|
|
|
static int APP_CC
|
|
|
|
|
xrdp_sec_process_mcs_data_CS_CORE(struct xrdp_sec* self, struct stream* s)
|
|
|
|
|
{
|
|
|
|
|
int colorDepth;
|
|
|
|
|
int postBeta2ColorDepth;
|
|
|
|
|
int highColorDepth;
|
|
|
|
|
int supportedColorDepths;
|
|
|
|
|
int earlyCapabilityFlags;
|
|
|
|
|
|
|
|
|
|
in_uint8s(s, 4); /* version */
|
|
|
|
|
in_uint16_le(s, self->rdp_layer->client_info.width);
|
|
|
|
|
in_uint16_le(s, self->rdp_layer->client_info.height);
|
|
|
|
|
in_uint16_le(s, colorDepth);
|
|
|
|
|
g_writeln("colorDepth 0x%4.4x (0xca00 4bpp 0xca01 8bpp)", colorDepth);
|
|
|
|
|
switch (colorDepth)
|
|
|
|
|
{
|
|
|
|
|
case 0xca00: /* RNS_UD_COLOR_4BPP */
|
|
|
|
|
self->rdp_layer->client_info.bpp = 4;
|
|
|
|
|
break;
|
|
|
|
|
case 0xca01: /* RNS_UD_COLOR_8BPP */
|
|
|
|
|
self->rdp_layer->client_info.bpp = 8;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
in_uint8s(s, 2); /* SASSequence */
|
|
|
|
|
in_uint8s(s, 4); /* keyboardLayout */
|
|
|
|
|
in_uint8s(s, 4); /* clientBuild */
|
|
|
|
|
in_uint8s(s, 32); /* clientName */
|
|
|
|
|
in_uint8s(s, 4); /* keyboardType */
|
|
|
|
|
in_uint8s(s, 4); /* keyboardSubType */
|
|
|
|
|
in_uint8s(s, 4); /* keyboardFunctionKey */
|
|
|
|
|
in_uint8s(s, 64); /* imeFileName */
|
|
|
|
|
in_uint16_le(s, postBeta2ColorDepth);
|
|
|
|
|
g_writeln("postBeta2ColorDepth 0x%4.4x (0xca00 4bpp 0xca01 8bpp "
|
|
|
|
|
"0xca02 15bpp 0xca03 16bpp 0xca04 24bpp)", postBeta2ColorDepth);
|
|
|
|
|
|
|
|
|
|
switch (postBeta2ColorDepth)
|
|
|
|
|
{
|
|
|
|
|
case 0xca00: /* RNS_UD_COLOR_4BPP */
|
|
|
|
|
self->rdp_layer->client_info.bpp = 4;
|
|
|
|
|
break;
|
|
|
|
|
case 0xca01: /* RNS_UD_COLOR_8BPP */
|
|
|
|
|
self->rdp_layer->client_info.bpp = 8;
|
|
|
|
|
break;
|
|
|
|
|
case 0xca02: /* RNS_UD_COLOR_16BPP_555 */
|
|
|
|
|
self->rdp_layer->client_info.bpp = 15;
|
|
|
|
|
break;
|
|
|
|
|
case 0xca03: /* RNS_UD_COLOR_16BPP_565 */
|
|
|
|
|
self->rdp_layer->client_info.bpp = 16;
|
|
|
|
|
break;
|
|
|
|
|
case 0xca04: /* RNS_UD_COLOR_24BPP */
|
|
|
|
|
self->rdp_layer->client_info.bpp = 24;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
if (!s_check_rem(s, 2))
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
in_uint8s(s, 2); /* clientProductId */
|
|
|
|
|
|
|
|
|
|
if (!s_check_rem(s, 4))
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
in_uint8s(s, 4); /* serialNumber */
|
|
|
|
|
|
|
|
|
|
if (!s_check_rem(s, 2))
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
in_uint16_le(s, highColorDepth);
|
|
|
|
|
g_writeln("highColorDepth 0x%4.4x (0x0004 4bpp 0x0008 8bpp 0x000f 15bpp "
|
|
|
|
|
"0x0010 16 bpp 0x0018 24bpp)", highColorDepth);
|
|
|
|
|
self->rdp_layer->client_info.bpp = highColorDepth;
|
|
|
|
|
|
|
|
|
|
if (!s_check_rem(s, 2))
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
in_uint16_le(s, supportedColorDepths);
|
|
|
|
|
g_writeln("supportedColorDepths 0x%4.4x (0x0001 24bpp 0x0002 16bpp "
|
|
|
|
|
"0x0004 15bpp 0x0008 32bpp)", supportedColorDepths);
|
|
|
|
|
|
|
|
|
|
if (!s_check_rem(s, 2))
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
in_uint16_le(s, earlyCapabilityFlags);
|
|
|
|
|
self->rdp_layer->client_info.mcs_early_capability_flags = earlyCapabilityFlags;
|
|
|
|
|
g_writeln("earlyCapabilityFlags 0x%4.4x (0x0002 want32)",
|
|
|
|
|
earlyCapabilityFlags);
|
|
|
|
|
if ((earlyCapabilityFlags & 0x0002) && (supportedColorDepths & 0x0008))
|
|
|
|
|
{
|
|
|
|
|
self->rdp_layer->client_info.bpp = 32;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!s_check_rem(s, 64))
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
in_uint8s(s, 64); /* clientDigProductId */
|
|
|
|
|
|
|
|
|
|
if (!s_check_rem(s, 1))
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
in_uint8(s, self->rdp_layer->client_info.mcs_connection_type); /* connectionType */
|
|
|
|
|
g_writeln("got client client connection type 0x%8.8x",
|
|
|
|
|
self->rdp_layer->client_info.mcs_connection_type);
|
|
|
|
|
|
|
|
|
|
if (!s_check_rem(s, 1))
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
in_uint8s(s, 1); /* pad1octet */
|
|
|
|
|
|
|
|
|
|
if (!s_check_rem(s, 4))
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
in_uint8s(s, 4); /* serverSelectedProtocol */
|
|
|
|
|
|
|
|
|
|
if (!s_check_rem(s, 4))
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
in_uint8s(s, 4); /* desktopPhysicalWidth */
|
|
|
|
|
|
|
|
|
|
if (!s_check_rem(s, 4))
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
in_uint8s(s, 4); /* desktopPhysicalHeight */
|
|
|
|
|
|
|
|
|
|
if (!s_check_rem(s, 2))
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
in_uint8s(s, 2); /* reserved */
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
static int APP_CC
|
|
|
|
|
xrdp_sec_process_mcs_data_CS_SECURITY(struct xrdp_sec *self, struct stream* s)
|
|
|
|
|
{
|
|
|
|
|
int crypt_method;
|
|
|
|
|
int found;
|
|
|
|
|
|
|
|
|
|
g_writeln("xrdp_sec_process_mcs_data_CS_SECURITY:");
|
|
|
|
|
in_uint32_le(s, crypt_method);
|
|
|
|
|
if (crypt_method & CRYPT_METHOD_40BIT)
|
|
|
|
|
{
|
|
|
|
|
g_writeln(" client supports 40 bit encryption");
|
|
|
|
|
}
|
|
|
|
|
if (crypt_method & CRYPT_METHOD_128BIT)
|
|
|
|
|
{
|
|
|
|
|
g_writeln(" client supports 128 bit encryption");
|
|
|
|
|
}
|
|
|
|
|
if (crypt_method & CRYPT_METHOD_56BIT)
|
|
|
|
|
{
|
|
|
|
|
g_writeln(" client supports 56 bit encryption");
|
|
|
|
|
}
|
|
|
|
|
if (crypt_method & CRYPT_METHOD_FIPS)
|
|
|
|
|
{
|
|
|
|
|
g_writeln(" client supports fips encryption");
|
|
|
|
|
}
|
|
|
|
|
found = 0;
|
|
|
|
|
if ((found == 0) &&
|
|
|
|
|
(self->crypt_method & CRYPT_METHOD_FIPS) &&
|
|
|
|
|
(self->crypt_level == CRYPT_LEVEL_FIPS))
|
|
|
|
|
{
|
|
|
|
|
if (crypt_method & CRYPT_METHOD_FIPS)
|
|
|
|
|
{
|
|
|
|
|
g_writeln(" client and server support fips, using fips");
|
|
|
|
|
self->crypt_method = CRYPT_METHOD_FIPS;
|
|
|
|
|
self->crypt_level = CRYPT_LEVEL_FIPS;
|
|
|
|
|
found = 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if ((found == 0) &&
|
|
|
|
|
(self->crypt_method & CRYPT_METHOD_128BIT) &&
|
|
|
|
|
(self->crypt_level == CRYPT_LEVEL_HIGH))
|
|
|
|
|
{
|
|
|
|
|
if (crypt_method & CRYPT_METHOD_128BIT)
|
|
|
|
|
{
|
|
|
|
|
g_writeln(" client and server support high crypt, using "
|
|
|
|
|
"high crypt");
|
|
|
|
|
self->crypt_method = CRYPT_METHOD_128BIT;
|
|
|
|
|
self->crypt_level = CRYPT_LEVEL_HIGH;
|
|
|
|
|
found = 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if ((found == 0) &&
|
|
|
|
|
(self->crypt_method & CRYPT_METHOD_40BIT) &&
|
|
|
|
|
(self->crypt_level == CRYPT_LEVEL_CLIENT_COMPATIBLE))
|
|
|
|
|
{
|
|
|
|
|
if (crypt_method & CRYPT_METHOD_40BIT)
|
|
|
|
|
{
|
|
|
|
|
g_writeln(" client and server support medium crypt, using "
|
|
|
|
|
"medium crypt");
|
|
|
|
|
self->crypt_method = CRYPT_METHOD_40BIT;
|
|
|
|
|
self->crypt_level = CRYPT_LEVEL_CLIENT_COMPATIBLE;
|
|
|
|
|
found = 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if ((found == 0) &&
|
|
|
|
|
(self->crypt_method & CRYPT_METHOD_40BIT) &&
|
|
|
|
|
(self->crypt_level == CRYPT_LEVEL_LOW))
|
|
|
|
|
{
|
|
|
|
|
if (crypt_method & CRYPT_METHOD_40BIT)
|
|
|
|
|
{
|
|
|
|
|
g_writeln(" client and server support low crypt, using "
|
|
|
|
|
"low crypt");
|
|
|
|
|
self->crypt_method = CRYPT_METHOD_40BIT;
|
|
|
|
|
self->crypt_level = CRYPT_LEVEL_LOW;
|
|
|
|
|
found = 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (found == 0)
|
|
|
|
|
{
|
|
|
|
|
g_writeln(" no security");
|
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
/* this adds the mcs channels in the list of channels to be used when
|
|
|
|
|
creating the server mcs data */
|
|
|
|
@ -951,6 +1385,7 @@ xrdp_sec_process_mcs_data_channels(struct xrdp_sec *self, struct stream *s)
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
/* reads the client monitors data */
|
|
|
|
|
static int APP_CC
|
|
|
|
@ -1006,6 +1441,7 @@ xrdp_sec_process_mcs_data_monitors(struct xrdp_sec *self, struct stream *s)
|
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
/* process client mcs data, we need some things in here to create the server
|
|
|
|
|
mcs data */
|
|
|
|
@ -1035,40 +1471,71 @@ xrdp_sec_process_mcs_data(struct xrdp_sec *self)
|
|
|
|
|
|
|
|
|
|
if (size < 4 || !s_check_rem(s, size - 4))
|
|
|
|
|
{
|
|
|
|
|
g_writeln("error in xrdp_sec_process_mcs_data tag %d size %d",
|
|
|
|
|
tag, size);
|
|
|
|
|
LLOGLN(0, ("error in xrdp_sec_process_mcs_data tag %d size %d",
|
|
|
|
|
tag, size));
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
LLOGLN(10, ("xrdp_sec_process_mcs_data: 0x%8.8x", tag));
|
|
|
|
|
switch (tag)
|
|
|
|
|
{
|
|
|
|
|
case SEC_TAG_CLI_INFO:
|
|
|
|
|
case SEC_TAG_CLI_INFO: /* CS_CORE 0xC001 */
|
|
|
|
|
if (xrdp_sec_process_mcs_data_CS_CORE(self, s) != 0)
|
|
|
|
|
{
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case SEC_TAG_CLI_CRYPT:
|
|
|
|
|
case SEC_TAG_CLI_CRYPT: /* CS_SECURITY 0xC002 */
|
|
|
|
|
if (xrdp_sec_process_mcs_data_CS_SECURITY(self, s) != 0)
|
|
|
|
|
{
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case SEC_TAG_CLI_CHANNELS:
|
|
|
|
|
case SEC_TAG_CLI_CHANNELS: /* CS_NET 0xC003 */
|
|
|
|
|
if (xrdp_sec_process_mcs_data_channels(self, s) != 0)
|
|
|
|
|
{
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case SEC_TAG_CLI_4:
|
|
|
|
|
case SEC_TAG_CLI_4: /* CS_CLUSTER 0xC004 */
|
|
|
|
|
break;
|
|
|
|
|
case SEC_TAG_CLI_MONITOR:
|
|
|
|
|
case SEC_TAG_CLI_MONITOR: /* CS_MONITOR 0xC005 */
|
|
|
|
|
if (xrdp_sec_process_mcs_data_monitors(self, s) != 0)
|
|
|
|
|
{
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
/* CS_MCS_MSGCHANNEL 0xC006
|
|
|
|
|
CS_MONITOR_EX 0xC008
|
|
|
|
|
CS_MULTITRANSPORT 0xC00A
|
|
|
|
|
SC_CORE 0x0C01
|
|
|
|
|
SC_SECURITY 0x0C02
|
|
|
|
|
SC_NET 0x0C03
|
|
|
|
|
SC_MCS_MSGCHANNEL 0x0C04
|
|
|
|
|
SC_MULTITRANSPORT 0x0C08 */
|
|
|
|
|
default:
|
|
|
|
|
g_writeln("error unknown xrdp_sec_process_mcs_data tag %d size %d",
|
|
|
|
|
tag, size);
|
|
|
|
|
LLOGLN(0, ("error unknown xrdp_sec_process_mcs_data tag %d "
|
|
|
|
|
"size %d", tag, size));
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
s->p = hold_p + size;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (self->rdp_layer->client_info.max_bpp > 0)
|
|
|
|
|
{
|
|
|
|
|
if (self->rdp_layer->client_info.bpp >
|
|
|
|
|
self->rdp_layer->client_info.max_bpp)
|
|
|
|
|
{
|
|
|
|
|
LLOGLN(0, ("xrdp_rdp_parse_client_mcs_data: client asked "
|
|
|
|
|
"for %dbpp connection but configuration is limited "
|
|
|
|
|
"to %dbpp", self->rdp_layer->client_info.bpp,
|
|
|
|
|
self->rdp_layer->client_info.max_bpp));
|
|
|
|
|
self->rdp_layer->client_info.bpp =
|
|
|
|
|
self->rdp_layer->client_info.max_bpp;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* set p to beginning */
|
|
|
|
|
s->p = s->data;
|
|
|
|
|
return 0;
|
|
|
|
@ -1152,9 +1619,8 @@ xrdp_sec_out_mcs_data(struct xrdp_sec *self)
|
|
|
|
|
|
|
|
|
|
out_uint16_le(s, SEC_TAG_SRV_CRYPT);
|
|
|
|
|
out_uint16_le(s, 0x00ec); /* len is 236 */
|
|
|
|
|
out_uint32_le(s, self->rc4_key_size); /* key len 1 = 40 bit 2 = 128 bit */
|
|
|
|
|
out_uint32_le(s, self->crypt_level); /* crypt level 1 = low 2 = medium */
|
|
|
|
|
/* 3 = high */
|
|
|
|
|
out_uint32_le(s, self->crypt_method);
|
|
|
|
|
out_uint32_le(s, self->crypt_level);
|
|
|
|
|
out_uint32_le(s, 32); /* 32 bytes random len */
|
|
|
|
|
out_uint32_le(s, 0xb8); /* 184 bytes rsa info(certificate) len */
|
|
|
|
|
out_uint8a(s, self->server_random, 32);
|
|
|
|
|