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Minor refactor of process_logon_pdu()

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This commit is contained in:
Henrik Andersson 2017-10-31 10:49:51 +01:00
parent 7daf773b6a
commit 5aa5a9dbfc
1 changed files with 56 additions and 37 deletions
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93
rdp.c
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@ -457,6 +457,7 @@ rdp_send_logon_info(uint32 flags, char *domain, char *user,
/* Client Auto-Reconnect */
if (g_has_reconnect_random)
{
logger(Protocol, Debug, "rdp_send_logon_info(), Sending auto-reconnect cookie.");
out_uint16_le(s, 28); /* cbAutoReconnectLen */
/* ARC_CS_PRIVATE_PACKET */
out_uint32_le(s, 28); /* cbLen */
@ -1436,51 +1437,69 @@ process_update_pdu(STREAM s)
}
/* Process a Save Session Info PDU */
/* Process TS_LOGIN_INFO_EXTENDED data structure */
static void
process_ts_logon_info_extended(STREAM s)
{
uint32 fieldspresent;
uint32 len;
uint32 version;
in_uint8s(s, 2); /* Length */
in_uint32_le(s, fieldspresent);
if (fieldspresent & LOGON_EX_AUTORECONNECTCOOKIE)
{
/* TS_LOGON_INFO_FIELD */
in_uint8s(s, 4); /* cbFieldData */
/* ARC_SC_PRIVATE_PACKET */
in_uint32_le(s, len);
if (len != 28)
{
logger(Protocol, Error,
"process_ts_logon_info_extended(), invalid length in Auto-Reconnect packet");
return;
}
in_uint32_le(s, version);
if (version != 1)
{
logger(Protocol, Error,
"process_ts_logon_info_extended(), unsupported version of Auto-Reconnect packet");
return;
}
in_uint32_le(s, g_reconnect_logonid);
in_uint8a(s, g_reconnect_random, 16);
g_has_reconnect_random = True;
g_reconnect_random_ts = time(NULL);
logger(Protocol, Debug,
"process_ts_logon_info_extended(), saving Auto-Reconnect cookie, id=%u",
g_reconnect_logonid);
}
}
/* Process TS_SAVE_SESSION_INFO_PDU_DATA data structure */
void
process_pdu_logon(STREAM s)
{
uint32 infotype;
in_uint32_le(s, infotype);
if (infotype == INFOTYPE_LOGON_EXTENDED_INF)
switch(infotype)
{
uint32 fieldspresent;
case INFOTYPE_LOGON_PLAINNOTIFY: /* TS_PLAIN_NOTIFY */
logger(Protocol, Debug, "process_pdu_logon(), Received TS_LOGIN_PLAIN_NOTIFY");
in_uint8s(s, 576); /* pad */
break;
in_uint8s(s, 2); /* Length */
in_uint32_le(s, fieldspresent);
if (fieldspresent & LOGON_EX_AUTORECONNECTCOOKIE)
{
uint32 len;
uint32 version;
case INFOTYPE_LOGON_EXTENDED_INF: /* TS_LOGON_INFO_EXTENDED */
logger(Protocol, Debug, "process_pdu_logon(), Received TS_LOGIN_INFO_EXTENDED");
process_ts_logon_info_extended(s);
break;
/* TS_LOGON_INFO_FIELD */
in_uint8s(s, 4); /* cbFieldData */
/* ARC_SC_PRIVATE_PACKET */
in_uint32_le(s, len);
if (len != 28)
{
logger(Protocol, Error,
"process_pdu_logon(), invalid length in Auto-Reconnect packet");
return;
}
in_uint32_le(s, version);
if (version != 1)
{
logger(Protocol, Error,
"process_pdu_logon(), unsupported version of Auto-Reconnect packet");
return;
}
in_uint32_le(s, g_reconnect_logonid);
in_uint8a(s, g_reconnect_random, 16);
g_has_reconnect_random = True;
g_reconnect_random_ts = time(NULL);
logger(Protocol, Debug,
"process_pdu_logon(), saving Auto-Reconnect cookie, id=%u",
g_reconnect_logonid);
}
default:
logger(Protocol, Warning, "process_pdu_logon(), Unhandled login infotype %d", infotype);
}
}