/* server API */
enum SCP_SERVER_STATES_E scp_v1s_accept(struct SCP_CONNECTION* c, struct SCP_SESSION** s, int skipVchk)
{
struct SCP_SESSION* session;
tui32 version;
tui32 size;
tui16 cmdset;
tui16 cmd;
tui8 sz;
char buf[257];
if (!skipVchk)
{
if (0 == scp_tcp_force_recv(c->in_sck, c->in_s->data, 8))
{
in_uint32_be(c->in_s, version);
if (version != 1)
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: version error", __LINE__);
return SCP_SERVER_STATE_VERSION_ERR;
}
}
else
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
}
in_uint32_be(c->in_s, size);
if (size < 12)
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: size error", __LINE__);
return SCP_SERVER_STATE_SIZE_ERR;
}
init_stream(c->in_s, c->in_s->size);
if (0 != scp_tcp_force_recv(c->in_sck, c->in_s->data, (size-8)))
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
/* reading command set */
in_uint16_be(c->in_s, cmdset);
/* if we are starting a management session */
if (cmdset == SCP_COMMAND_SET_MANAGE)
{
log_message(LOG_LEVEL_DEBUG, "[v1s:%d] requested management connection", __LINE__);
/* should return SCP_SERVER_STATE_START_MANAGE */
return scp_v1s_mng_accept(c, s);
}
/* if we started with resource sharing... */
if (cmdset == SCP_COMMAND_SET_RSR)
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: sequence error", __LINE__);
return SCP_SERVER_STATE_SEQUENCE_ERR;
}
/* reading command */
in_uint16_be(c->in_s, cmd);
if (cmd != 1)
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: sequence error", __LINE__);
return SCP_SERVER_STATE_SEQUENCE_ERR;
}
session = scp_session_create();
if (0 == session)
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: internal error (malloc returned NULL)", __LINE__);
return SCP_SERVER_STATE_INTERNAL_ERR;
}
scp_session_set_version(session, 1);
in_uint8(c->in_s, sz);
if ((sz != SCP_SESSION_TYPE_XVNC) && (sz != SCP_SESSION_TYPE_XRDP))
{
scp_session_destroy(session);
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: unknown session type", __LINE__);
return SCP_SERVER_STATE_SESSION_TYPE_ERR;
}
scp_session_set_type(session, sz);
in_uint16_be(c->in_s, cmd);
scp_session_set_height(session, cmd);
in_uint16_be(c->in_s, cmd);
scp_session_set_height(session, cmd);
in_uint8(c->in_s, sz);
scp_session_set_bpp(session, sz);
in_uint8(c->in_s, sz);
scp_session_set_rsr(session, sz);
in_uint8a(c->in_s, buf, 17);
buf[17]='\0';
scp_session_set_locale(session, buf);
in_uint8(c->in_s, sz);
if (sz == SCP_ADDRESS_TYPE_IPV4)
{
in_uint32_be(c->in_s, size);
scp_session_set_addr(session, SCP_ADDRESS_TYPE_IPV4_BIN, &size);
}
else if (sz == SCP_ADDRESS_TYPE_IPV6)
{
in_uint8a(c->in_s, buf, 16);
scp_session_set_addr(session, SCP_ADDRESS_TYPE_IPV6_BIN, buf);
}
buf[256] = '\0';
/* reading hostname */
in_uint8(c->in_s, sz);
buf[sz]='\0';
in_uint8a(c->in_s, buf, sz);
if (0 != scp_session_set_hostname(session, buf))
{
scp_session_destroy(session);
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: internal error", __LINE__);
return SCP_SERVER_STATE_INTERNAL_ERR;
}
/* reading username */
in_uint8(c->in_s, sz);
buf[sz]='\0';
in_uint8a(c->in_s, buf, sz);
if (0 != scp_session_set_username(session, buf))
{
scp_session_destroy(session);
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: internal error", __LINE__);
return SCP_SERVER_STATE_INTERNAL_ERR;
}
/* reading password */
in_uint8(c->in_s, sz);
buf[sz]='\0';
in_uint8a(c->in_s, buf, sz);
if (0 != scp_session_set_password(session, buf))
{
scp_session_destroy(session);
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: internal error", __LINE__);
return SCP_SERVER_STATE_INTERNAL_ERR;
}
/* returning the struct */
(*s)=session;
return SCP_SERVER_STATE_OK;
}
enum SCP_SERVER_STATES_E
scp_v0s_accept(struct SCP_CONNECTION *c, struct SCP_SESSION **s, int skipVchk)
{
tui32 version = 0;
tui32 size;
struct SCP_SESSION *session = 0;
tui16 sz;
tui32 code = 0;
char buf[257];
if (!skipVchk)
{
LOG_DBG("[v0:%d] starting connection", __LINE__);
if (0 == scp_tcp_force_recv(c->in_sck, c->in_s->data, 8))
{
c->in_s->end = c->in_s->data + 8;
in_uint32_be(c->in_s, version);
if (version != 0)
{
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: version error", __LINE__);
return SCP_SERVER_STATE_VERSION_ERR;
}
}
else
{
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
}
in_uint32_be(c->in_s, size);
init_stream(c->in_s, 8196);
if (0 != scp_tcp_force_recv(c->in_sck, c->in_s->data, size - 8))
{
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
c->in_s->end = c->in_s->data + (size - 8);
in_uint16_be(c->in_s, code);
if (code == 0 || code == 10 || code == 20)
{
session = scp_session_create();
if (0 == session)
{
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_INTERNAL_ERR;
}
scp_session_set_version(session, version);
if (code == 0)
{
scp_session_set_type(session, SCP_SESSION_TYPE_XVNC);
}
else if (code == 10)
{
scp_session_set_type(session, SCP_SESSION_TYPE_XRDP);
}
else if (code == 20)
{
scp_session_set_type(session, SCP_SESSION_TYPE_XORG);
}
/* reading username */
in_uint16_be(c->in_s, sz);
buf[sz] = '\0';
in_uint8a(c->in_s, buf, sz);
if (0 != scp_session_set_username(session, buf))
{
scp_session_destroy(session);
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: error setting username", __LINE__);
return SCP_SERVER_STATE_INTERNAL_ERR;
}
/* reading password */
in_uint16_be(c->in_s, sz);
buf[sz] = '\0';
in_uint8a(c->in_s, buf, sz);
if (0 != scp_session_set_password(session, buf))
{
scp_session_destroy(session);
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: error setting password", __LINE__);
return SCP_SERVER_STATE_INTERNAL_ERR;
}
/* width */
in_uint16_be(c->in_s, sz);
scp_session_set_width(session, sz);
/* height */
in_uint16_be(c->in_s, sz);
scp_session_set_height(session, sz);
/* bpp */
in_uint16_be(c->in_s, sz);
scp_session_set_bpp(session, (tui8)sz);
if (s_check_rem(c->in_s, 2))
{
/* reading domain */
in_uint16_be(c->in_s, sz);
if (sz > 0)
{
in_uint8a(c->in_s, buf, sz);
buf[sz] = '\0';
scp_session_set_domain(session, buf);
}
}
if (s_check_rem(c->in_s, 2))
{
/* reading program */
in_uint16_be(c->in_s, sz);
if (sz > 0)
{
in_uint8a(c->in_s, buf, sz);
buf[sz] = '\0';
scp_session_set_program(session, buf);
}
}
if (s_check_rem(c->in_s, 2))
{
/* reading directory */
in_uint16_be(c->in_s, sz);
if (sz > 0)
{
in_uint8a(c->in_s, buf, sz);
buf[sz] = '\0';
scp_session_set_directory(session, buf);
}
}
if (s_check_rem(c->in_s, 2))
{
/* reading client IP address */
in_uint16_be(c->in_s, sz);
if (sz > 0)
{
in_uint8a(c->in_s, buf, sz);
buf[sz] = '\0';
scp_session_set_client_ip(session, buf);
}
}
}
else if (code == SCP_GW_AUTHENTICATION)
{
/* g_writeln("Command is SCP_GW_AUTHENTICATION"); */
session = scp_session_create();
if (0 == session)
{
/* until syslog merge log_message(s_log, LOG_LEVEL_WARNING, "[v0:%d] connection aborted: network error", __LINE__);*/
return SCP_SERVER_STATE_INTERNAL_ERR;
}
scp_session_set_version(session, version);
scp_session_set_type(session, SCP_GW_AUTHENTICATION);
/* reading username */
in_uint16_be(c->in_s, sz);
buf[sz] = '\0';
in_uint8a(c->in_s, buf, sz);
/* g_writeln("Received user name: %s",buf); */
if (0 != scp_session_set_username(session, buf))
{
scp_session_destroy(session);
/* until syslog merge log_message(s_log, LOG_LEVEL_WARNING, "[v0:%d] connection aborted: error setting username", __LINE__);*/
return SCP_SERVER_STATE_INTERNAL_ERR;
}
/* reading password */
in_uint16_be(c->in_s, sz);
buf[sz] = '\0';
in_uint8a(c->in_s, buf, sz);
/* g_writeln("Received password: %s",buf); */
if (0 != scp_session_set_password(session, buf))
{
scp_session_destroy(session);
/* until syslog merge log_message(s_log, LOG_LEVEL_WARNING, "[v0:%d] connection aborted: error setting password", __LINE__); */
return SCP_SERVER_STATE_INTERNAL_ERR;
}
}
else
{
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: sequence error", __LINE__);
return SCP_SERVER_STATE_SEQUENCE_ERR;
}
(*s) = session;
return SCP_SERVER_STATE_OK;
}