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-rw-r--r--libxrdp/xrdp_sec.c606
1 files changed, 606 insertions, 0 deletions
diff --git a/libxrdp/xrdp_sec.c b/libxrdp/xrdp_sec.c
new file mode 100644
index 00000000..0616b656
--- /dev/null
+++ b/libxrdp/xrdp_sec.c
@@ -0,0 +1,606 @@
+/*
+ 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.
+
+ xrdp: A Remote Desktop Protocol server.
+ Copyright (C) Jay Sorg 2004-2005
+
+ secure layer
+
+*/
+
+#include "libxrdp.h"
+
+static char pad_54[40] =
+{ 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54,
+ 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54,
+ 54, 54, 54, 54, 54, 54, 54, 54 };
+
+static char pad_92[48] =
+{ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92 };
+
+static char pub_exp[4] = { 0x01, 0x00, 0x01, 0x00 };
+
+static char pub_mod[64] =
+{ 0x67, 0xab, 0x0e, 0x6a, 0x9f, 0xd6, 0x2b, 0xa3,
+ 0x32, 0x2f, 0x41, 0xd1, 0xce, 0xee, 0x61, 0xc3,
+ 0x76, 0x0b, 0x26, 0x11, 0x70, 0x48, 0x8a, 0x8d,
+ 0x23, 0x81, 0x95, 0xa0, 0x39, 0xf7, 0x5b, 0xaa,
+ 0x3e, 0xf1, 0xed, 0xb8, 0xc4, 0xee, 0xce, 0x5f,
+ 0x6a, 0xf5, 0x43, 0xce, 0x5f, 0x60, 0xca, 0x6c,
+ 0x06, 0x75, 0xae, 0xc0, 0xd6, 0xa4, 0x0c, 0x92,
+ 0xa4, 0xc6, 0x75, 0xea, 0x64, 0xb2, 0x50, 0x5b };
+
+static char pub_sig[64] =
+{ 0x6a, 0x41, 0xb1, 0x43, 0xcf, 0x47, 0x6f, 0xf1,
+ 0xe6, 0xcc, 0xa1, 0x72, 0x97, 0xd9, 0xe1, 0x85,
+ 0x15, 0xb3, 0xc2, 0x39, 0xa0, 0xa6, 0x26, 0x1a,
+ 0xb6, 0x49, 0x01, 0xfa, 0xa6, 0xda, 0x60, 0xd7,
+ 0x45, 0xf7, 0x2c, 0xee, 0xe4, 0x8e, 0x64, 0x2e,
+ 0x37, 0x49, 0xf0, 0x4c, 0x94, 0x6f, 0x08, 0xf5,
+ 0x63, 0x4c, 0x56, 0x29, 0x55, 0x5a, 0x63, 0x41,
+ 0x2c, 0x20, 0x65, 0x95, 0x99, 0xb1, 0x15, 0x7c };
+
+static char pri_exp[64] =
+{ 0x41, 0x93, 0x05, 0xB1, 0xF4, 0x38, 0xFC, 0x47,
+ 0x88, 0xC4, 0x7F, 0x83, 0x8C, 0xEC, 0x90, 0xDA,
+ 0x0C, 0x8A, 0xB5, 0xAE, 0x61, 0x32, 0x72, 0xF5,
+ 0x2B, 0xD1, 0x7B, 0x5F, 0x44, 0xC0, 0x7C, 0xBD,
+ 0x8A, 0x35, 0xFA, 0xAE, 0x30, 0xF6, 0xC4, 0x6B,
+ 0x55, 0xA7, 0x65, 0xEF, 0xF4, 0xB2, 0xAB, 0x18,
+ 0x4E, 0xAA, 0xE6, 0xDC, 0x71, 0x17, 0x3B, 0x4C,
+ 0xC2, 0x15, 0x4C, 0xF7, 0x81, 0xBB, 0xF0, 0x03 };
+
+static char lic1[322] =
+{ 0x80, 0x00, 0x3e, 0x01, 0x01, 0x02, 0x3e, 0x01,
+ 0x7b, 0x3c, 0x31, 0xa6, 0xae, 0xe8, 0x74, 0xf6,
+ 0xb4, 0xa5, 0x03, 0x90, 0xe7, 0xc2, 0xc7, 0x39,
+ 0xba, 0x53, 0x1c, 0x30, 0x54, 0x6e, 0x90, 0x05,
+ 0xd0, 0x05, 0xce, 0x44, 0x18, 0x91, 0x83, 0x81,
+ 0x00, 0x00, 0x04, 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,
+ 0x32, 0x00, 0x33, 0x00, 0x36, 0x00, 0x00, 0x00,
+ 0x0d, 0x00, 0x04, 0x00, 0x01, 0x00, 0x00, 0x00,
+ 0x03, 0x00, 0xb8, 0x00, 0x01, 0x00, 0x00, 0x00,
+ 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+ 0x06, 0x00, 0x5c, 0x00, 0x52, 0x53, 0x41, 0x31,
+ 0x48, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00,
+ 0x3f, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00,
+ 0x01, 0xc7, 0xc9, 0xf7, 0x8e, 0x5a, 0x38, 0xe4,
+ 0x29, 0xc3, 0x00, 0x95, 0x2d, 0xdd, 0x4c, 0x3e,
+ 0x50, 0x45, 0x0b, 0x0d, 0x9e, 0x2a, 0x5d, 0x18,
+ 0x63, 0x64, 0xc4, 0x2c, 0xf7, 0x8f, 0x29, 0xd5,
+ 0x3f, 0xc5, 0x35, 0x22, 0x34, 0xff, 0xad, 0x3a,
+ 0xe6, 0xe3, 0x95, 0x06, 0xae, 0x55, 0x82, 0xe3,
+ 0xc8, 0xc7, 0xb4, 0xa8, 0x47, 0xc8, 0x50, 0x71,
+ 0x74, 0x29, 0x53, 0x89, 0x6d, 0x9c, 0xed, 0x70,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x08, 0x00, 0x48, 0x00, 0xa8, 0xf4, 0x31, 0xb9,
+ 0xab, 0x4b, 0xe6, 0xb4, 0xf4, 0x39, 0x89, 0xd6,
+ 0xb1, 0xda, 0xf6, 0x1e, 0xec, 0xb1, 0xf0, 0x54,
+ 0x3b, 0x5e, 0x3e, 0x6a, 0x71, 0xb4, 0xf7, 0x75,
+ 0xc8, 0x16, 0x2f, 0x24, 0x00, 0xde, 0xe9, 0x82,
+ 0x99, 0x5f, 0x33, 0x0b, 0xa9, 0xa6, 0x94, 0xaf,
+ 0xcb, 0x11, 0xc3, 0xf2, 0xdb, 0x09, 0x42, 0x68,
+ 0x29, 0x56, 0x58, 0x01, 0x56, 0xdb, 0x59, 0x03,
+ 0x69, 0xdb, 0x7d, 0x37, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+ 0x0e, 0x00, 0x0e, 0x00, 0x6d, 0x69, 0x63, 0x72,
+ 0x6f, 0x73, 0x6f, 0x66, 0x74, 0x2e, 0x63, 0x6f,
+ 0x6d, 0x00 };
+
+static char lic2[20] =
+{ 0x80, 0x00, 0x10, 0x00, 0xff, 0x02, 0x10, 0x00,
+ 0x07, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00,
+ 0x28, 0x14, 0x00, 0x00 };
+
+/*****************************************************************************/
+struct xrdp_sec* APP_CC
+xrdp_sec_create(struct xrdp_rdp* owner, int sck)
+{
+ struct xrdp_sec* self;
+
+ self = (struct xrdp_sec*)g_malloc(sizeof(struct xrdp_sec), 1);
+ self->rdp_layer = owner;
+ self->rc4_key_size = 1;
+ self->decrypt_rc4_info = g_rc4_info_create();
+ self->encrypt_rc4_info = g_rc4_info_create();
+ g_random(self->server_random, 32);
+ self->mcs_layer = xrdp_mcs_create(self, sck, &self->client_mcs_data,
+ &self->server_mcs_data);
+ return self;
+}
+
+/*****************************************************************************/
+void APP_CC
+xrdp_sec_delete(struct xrdp_sec* self)
+{
+ if (self == 0)
+ {
+ return;
+ }
+ xrdp_mcs_delete(self->mcs_layer);
+ g_rc4_info_delete(self->decrypt_rc4_info);
+ g_rc4_info_delete(self->encrypt_rc4_info);
+ g_free(self->client_mcs_data.data);
+ g_free(self->server_mcs_data.data);
+ g_free(self);
+}
+
+/*****************************************************************************/
+/* returns error */
+int APP_CC
+xrdp_sec_init(struct xrdp_sec* self, struct stream* s)
+{
+ if (xrdp_mcs_init(self->mcs_layer, s) != 0)
+ {
+ return 1;
+ }
+ s_push_layer(s, sec_hdr, 4);
+ return 0;
+}
+
+/*****************************************************************************/
+/* Reduce key entropy from 64 to 40 bits */
+static void APP_CC
+xrdp_sec_make_40bit(char* key)
+{
+ key[0] = 0xd1;
+ key[1] = 0x26;
+ key[2] = 0x9e;
+}
+
+/*****************************************************************************/
+/* returns error */
+/* update an encryption key */
+static int APP_CC
+xrdp_sec_update(char* key, char* update_key, int key_len)
+{
+ char shasig[20];
+ void* sha1_info;
+ void* md5_info;
+ void* rc4_info;
+
+ sha1_info = g_sha1_info_create();
+ md5_info = g_md5_info_create();
+ rc4_info = g_rc4_info_create();
+ g_sha1_clear(sha1_info);
+ g_sha1_transform(sha1_info, update_key, key_len);
+ g_sha1_transform(sha1_info, pad_54, 40);
+ g_sha1_transform(sha1_info, key, key_len);
+ g_sha1_complete(sha1_info, shasig);
+ g_md5_clear(md5_info);
+ g_md5_transform(md5_info, update_key, key_len);
+ g_md5_transform(md5_info, pad_92, 48);
+ g_md5_transform(md5_info, shasig, 20);
+ g_md5_complete(md5_info, key);
+ g_rc4_set_key(rc4_info, key, key_len);
+ g_rc4_crypt(rc4_info, key, key_len);
+ if (key_len == 8)
+ {
+ xrdp_sec_make_40bit(key);
+ }
+ g_sha1_info_delete(sha1_info);
+ g_md5_info_delete(md5_info);
+ g_rc4_info_delete(rc4_info);
+ return 0;
+}
+
+/*****************************************************************************/
+static void APP_CC
+xrdp_sec_decrypt(struct xrdp_sec* self, char* data, int len)
+{
+ if (self->decrypt_use_count == 4096)
+ {
+ xrdp_sec_update(self->decrypt_key, self->decrypt_update_key,
+ self->rc4_key_len);
+ g_rc4_set_key(self->decrypt_rc4_info, self->decrypt_key,
+ self->rc4_key_len);
+ self->decrypt_use_count = 0;
+ }
+ g_rc4_crypt(self->decrypt_rc4_info, data, len);
+ self->decrypt_use_count++;
+}
+
+/*****************************************************************************/
+/* returns error */
+static int APP_CC
+xrdp_sec_process_logon_info(struct xrdp_sec* self, struct stream* s)
+{
+ int flags;
+ int len_domain;
+ int len_user;
+ int len_password;
+ int len_program;
+ int len_directory;
+
+ in_uint8s(s, 4);
+ in_uint32_le(s, flags);
+ DEBUG(("in xrdp_sec_process_logon_info flags $%x\n\r", flags));
+ /* this is the first test that the decrypt is working */
+ if ((flags & RDP_LOGON_NORMAL) != RDP_LOGON_NORMAL) /* 0x33 */
+ { /* must be or error */
+ return 1;
+ }
+ if (flags & RDP_LOGON_AUTO)
+ {
+ }
+ if (flags & RDP_COMPRESSION)
+ {
+ }
+ in_uint16_le(s, len_domain);
+ in_uint16_le(s, len_user);
+ in_uint16_le(s, len_password);
+ in_uint16_le(s, len_program);
+ in_uint16_le(s, len_directory);
+ in_uint8s(s, len_domain + 2);
+ in_uint8s(s, len_user + 2);
+ in_uint8s(s, len_password + 2);
+ in_uint8s(s, len_program + 2);
+ in_uint8s(s, len_directory + 2);
+ return 0;
+}
+
+/*****************************************************************************/
+/* returns error */
+static int APP_CC
+xrdp_sec_send_lic_initial(struct xrdp_sec* self)
+{
+ struct stream* s;
+
+ make_stream(s);
+ init_stream(s, 8192);
+ if (xrdp_mcs_init(self->mcs_layer, s) != 0)
+ {
+ free_stream(s);
+ return 1;
+ }
+ out_uint8a(s, lic1, 322);
+ s_mark_end(s);
+ if (xrdp_mcs_send(self->mcs_layer, s) != 0)
+ {
+ free_stream(s);
+ return 1;
+ }
+ free_stream(s);
+ return 0;
+}
+
+/*****************************************************************************/
+/* returns error */
+static int APP_CC
+xrdp_sec_send_lic_response(struct xrdp_sec* self)
+{
+ struct stream* s;
+
+ make_stream(s);
+ init_stream(s, 8192);
+ if (xrdp_mcs_init(self->mcs_layer, s) != 0)
+ {
+ free_stream(s);
+ return 1;
+ }
+ out_uint8a(s, lic2, 20);
+ s_mark_end(s);
+ if (xrdp_mcs_send(self->mcs_layer, s) != 0)
+ {
+ free_stream(s);
+ return 1;
+ }
+ free_stream(s);
+ return 0;
+}
+
+/*****************************************************************************/
+static void APP_CC
+xrdp_sec_reverse(char* p, int len)
+{
+ int i;
+ int j;
+ char temp;
+
+ i = 0;
+ j = len - 1;
+ while (i < j)
+ {
+ temp = p[i];
+ p[i] = p[j];
+ p[j] = temp;
+ i++;
+ j--;
+ }
+}
+
+/*****************************************************************************/
+static void APP_CC
+xrdp_sec_rsa_op(char* out, char* in, char* mod, char* exp)
+{
+ char lexp[64];
+ char lmod[64];
+ char lin[64];
+ char lout[64];
+ int len;
+
+ g_memcpy(lexp, exp, 64);
+ g_memcpy(lmod, mod, 64);
+ g_memcpy(lin, in, 64);
+ xrdp_sec_reverse(lexp, 64);
+ xrdp_sec_reverse(lmod, 64);
+ xrdp_sec_reverse(lin, 64);
+ g_memset(lout, 0, 64);
+ len = g_mod_exp(lout, lin, lmod, lexp);
+ xrdp_sec_reverse(lout, len);
+ g_memcpy(out, lout, 64);
+}
+
+/*****************************************************************************/
+static void APP_CC
+xrdp_sec_hash_48(char* out, char* in, char* salt1, char* salt2, int salt)
+{
+ int i;
+ void* sha1_info;
+ void* md5_info;
+ char pad[4];
+ char sha1_sig[20];
+ char md5_sig[16];
+
+ sha1_info = g_sha1_info_create();
+ md5_info = g_md5_info_create();
+ for (i = 0; i < 3; i++)
+ {
+ g_memset(pad, salt + i, 4);
+ g_sha1_clear(sha1_info);
+ g_sha1_transform(sha1_info, pad, i + 1);
+ g_sha1_transform(sha1_info, in, 48);
+ g_sha1_transform(sha1_info, salt1, 32);
+ g_sha1_transform(sha1_info, salt2, 32);
+ g_sha1_complete(sha1_info, sha1_sig);
+ g_md5_clear(md5_info);
+ g_md5_transform(md5_info, in, 48);
+ g_md5_transform(md5_info, sha1_sig, 20);
+ g_md5_complete(md5_info, md5_sig);
+ g_memcpy(out + i * 16, md5_sig, 16);
+ }
+ g_sha1_info_delete(sha1_info);
+ g_md5_info_delete(md5_info);
+}
+
+/*****************************************************************************/
+static void APP_CC
+xrdp_sec_hash_16(char* out, char* in, char* salt1, char* salt2)
+{
+ void* md5_info;
+
+ md5_info = g_md5_info_create();
+ g_md5_clear(md5_info);
+ g_md5_transform(md5_info, in, 16);
+ g_md5_transform(md5_info, salt1, 32);
+ g_md5_transform(md5_info, salt2, 32);
+ g_md5_complete(md5_info, out);
+ g_md5_info_delete(md5_info);
+}
+
+/*****************************************************************************/
+static void APP_CC
+xrdp_sec_establish_keys(struct xrdp_sec* self)
+{
+ char session_key[48];
+ char temp_hash[48];
+ char input[48];
+
+ g_memcpy(input, self->client_random, 24);
+ g_memcpy(input + 24, self->server_random, 24);
+ xrdp_sec_hash_48(temp_hash, input, self->client_random,
+ self->server_random, 65);
+ xrdp_sec_hash_48(session_key, temp_hash, self->client_random,
+ self->server_random, 88);
+ g_memcpy(self->sign_key, session_key, 16);
+ xrdp_sec_hash_16(self->encrypt_key, session_key + 16, self->client_random,
+ self->server_random);
+ xrdp_sec_hash_16(self->decrypt_key, session_key + 32, self->client_random,
+ self->server_random);
+ if (self->rc4_key_size == 1)
+ {
+ xrdp_sec_make_40bit(self->sign_key);
+ xrdp_sec_make_40bit(self->encrypt_key);
+ xrdp_sec_make_40bit(self->decrypt_key);
+ self->rc4_key_len = 8;
+ }
+ else
+ {
+ self->rc4_key_len = 16;
+ }
+ g_memcpy(self->decrypt_update_key, self->decrypt_key, 16);
+ g_memcpy(self->encrypt_update_key, self->encrypt_key, 16);
+ g_rc4_set_key(self->decrypt_rc4_info, self->decrypt_key, self->rc4_key_len);
+ g_rc4_set_key(self->encrypt_rc4_info, self->encrypt_key, self->rc4_key_len);
+}
+
+/*****************************************************************************/
+/* returns error */
+int APP_CC
+xrdp_sec_recv(struct xrdp_sec* self, struct stream* s, int* chan)
+{
+ int flags;
+ int len;
+
+ DEBUG((" in xrdp_sec_recv\n\r"));
+ if (xrdp_mcs_recv(self->mcs_layer, s, chan) != 0)
+ {
+ DEBUG((" out xrdp_sec_recv error\n\r"));
+ return 1;
+ }
+ in_uint32_le(s, flags);
+ DEBUG((" in xrdp_sec_recv flags $%x\n\r", flags));
+ if (flags & SEC_ENCRYPT) /* 0x08 */
+ {
+ in_uint8s(s, 8); /* signature */
+ xrdp_sec_decrypt(self, s->p, s->end - s->p);
+ }
+ if (flags & SEC_CLIENT_RANDOM) /* 0x01 */
+ {
+ in_uint32_le(s, len);
+ in_uint8a(s, self->client_crypt_random, 64);
+ xrdp_sec_rsa_op(self->client_random, self->client_crypt_random,
+ pub_mod, pri_exp);
+ xrdp_sec_establish_keys(self);
+ *chan = 1; /* just set a non existing channel and exit */
+ return 0;
+ }
+ if (flags & SEC_LOGON_INFO) /* 0x40 */
+ {
+ if (xrdp_sec_process_logon_info(self, s) != 0)
+ {
+ return 1;
+ }
+ if (xrdp_sec_send_lic_initial(self) != 0)
+ {
+ return 1;
+ }
+ *chan = 1; /* just set a non existing channel and exit */
+ return 0;
+ }
+ if (flags & SEC_LICENCE_NEG) /* 0x80 */
+ {
+ if (xrdp_sec_send_lic_response(self) != 0)
+ {
+ return 1;
+ }
+ return -1; /* special error that means send demand active */
+ }
+ DEBUG((" out xrdp_sec_recv error\n\r"));
+ return 0;
+}
+
+/*****************************************************************************/
+/* returns error */
+/* TODO needs outgoing encryption */
+int APP_CC
+xrdp_sec_send(struct xrdp_sec* self, struct stream* s, int flags)
+{
+ DEBUG((" in xrdp_sec_send\n\r"));
+ s_pop_layer(s, sec_hdr);
+ out_uint32_le(s, flags);
+ if (xrdp_mcs_send(self->mcs_layer, s) != 0)
+ {
+ return 1;
+ }
+ DEBUG((" out xrdp_sec_send\n\r"));
+ return 0;
+}
+
+/*****************************************************************************/
+/* prepare server mcs data to send in mcs layer */
+static void APP_CC
+xrdp_sec_out_mcs_data(struct xrdp_sec* self)
+{
+ struct stream* p;
+
+ p = &self->server_mcs_data;
+ init_stream(p, 512);
+ out_uint16_be(p, 5);
+ out_uint16_be(p, 0x14);
+ out_uint8(p, 0x7c);
+ out_uint16_be(p, 1);
+ out_uint8(p, 0x2a);
+ out_uint8(p, 0x14);
+ out_uint8(p, 0x76);
+ out_uint8(p, 0x0a);
+ out_uint8(p, 1);
+ out_uint8(p, 1);
+ out_uint8(p, 0);
+ out_uint16_le(p, 0xc001);
+ out_uint8(p, 0);
+ out_uint8(p, 0x4d); /* M */
+ out_uint8(p, 0x63); /* c */
+ out_uint8(p, 0x44); /* D */
+ out_uint8(p, 0x6e); /* n */
+ out_uint16_be(p, 0x80fc);
+ out_uint16_le(p, SEC_TAG_SRV_INFO);
+ out_uint16_le(p, 8); /* len */
+ out_uint8(p, 4); /* 4 = rdp5 1 = rdp4 */
+ out_uint8(p, 0);
+ out_uint8(p, 8);
+ out_uint8(p, 0);
+ out_uint16_le(p, SEC_TAG_SRV_CHANNELS);
+ out_uint16_le(p, 8); /* len */
+ out_uint8(p, 0xeb);
+ out_uint8(p, 3);
+ out_uint8(p, 0);
+ out_uint8(p, 0);
+ out_uint16_le(p, SEC_TAG_SRV_CRYPT);
+ out_uint16_le(p, 0x00ec); /* len is 236 */
+ out_uint32_le(p, 1); /* key len 1 = 40 bit 2 = 128 bit */
+ out_uint32_le(p, 1); /* crypt level 1 = low 2 = medium 3 = high */
+ out_uint32_le(p, 32); /* 32 bytes random len */
+ out_uint32_le(p, 0xb8); /* 184 bytes rsa info(certificate) len */
+ out_uint8a(p, self->server_random, 32);
+ /* here to end is certificate */
+ /* HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ */
+ /* TermService\Parameters\Certificate */
+ out_uint32_le(p, 1);
+ out_uint32_le(p, 1);
+ out_uint32_le(p, 1);
+ out_uint16_le(p, SEC_TAG_PUBKEY);
+ out_uint16_le(p, 0x005c); /* 92 bytes length of SEC_TAG_PUBKEY */
+ out_uint32_le(p, SEC_RSA_MAGIC);
+ out_uint32_le(p, 0x48); /* 72 bytes modulus len */
+ out_uint32_be(p, 0x00020000);
+ out_uint32_be(p, 0x3f000000);
+ out_uint8a(p, pub_exp, 4); /* pub exp */
+ out_uint8a(p, pub_mod, 64); /* pub mod */
+ out_uint8s(p, 8); /* pad */
+ out_uint16_le(p, SEC_TAG_KEYSIG);
+ out_uint16_le(p, 72); /* len */
+ out_uint8a(p, pub_sig, 64); /* pub sig */
+ out_uint8s(p, 8); /* pad */
+ /* end certificate */
+ s_mark_end(p);
+}
+
+/*****************************************************************************/
+int APP_CC
+xrdp_sec_incoming(struct xrdp_sec* self)
+{
+ DEBUG(("in xrdp_sec_incoming\n\r"));
+ xrdp_sec_out_mcs_data(self);
+ if (xrdp_mcs_incoming(self->mcs_layer) != 0)
+ {
+ return 1;
+ }
+#ifdef XRDP_DEBUG
+ g_printf("client mcs data received\n\r");
+ g_hexdump(self->client_mcs_data.data,
+ self->client_mcs_data.end - self->client_mcs_data.data);
+ g_printf("server mcs data sent\n\r");
+ g_hexdump(self->server_mcs_data.data,
+ self->server_mcs_data.end - self->server_mcs_data.data);
+#endif
+ DEBUG(("out xrdp_sec_incoming\n\r"));
+ return 0;
+}
+
+/*****************************************************************************/
+int APP_CC
+xrdp_sec_disconnect(struct xrdp_sec* self)
+{
+ return xrdp_mcs_disconnect(self->mcs_layer);
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-27 07:34:48 +0000