/* 046 was: 031 struct SCP_DISCONNECTED_SESSION* ds, */
enum SCP_SERVER_STATES_E
scp_v1s_reconnect_session(struct SCP_CONNECTION* c, SCP_DISPLAY d)
{
tui32 version = 1;
tui32 size = 14;
tui16 cmd = 46;
/* ok, we send session data and display */
init_stream(c->out_s, c->out_s->size);
/* header */
out_uint32_be(c->out_s, version);
out_uint32_be(c->out_s, size);
out_uint16_be(c->out_s, SCP_COMMAND_SET_DEFAULT);
out_uint16_be(c->out_s, cmd);
/* session data */
out_uint16_be(c->out_s, d); /* session display */
/*out_uint8(c->out_s, ds->type);
out_uint16_be(c->out_s, ds->height);
out_uint16_be(c->out_s, ds->width);
out_uint8(c->out_s, ds->bpp);
out_uint8(c->out_s, ds->idle_days);
out_uint8(c->out_s, ds->idle_hours);
out_uint8(c->out_s, ds->idle_minutes);*/
/* these last three are not really needed... */
if (0!=scp_tcp_force_send(c->in_sck, c->out_s->data, size))
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
return SCP_SERVER_STATE_OK;
}
/* 003 */
enum SCP_SERVER_STATES_E
scp_v1s_mng_deny_connection(struct SCP_CONNECTION *c, char *reason)
{
int rlen;
init_stream(c->out_s, c->out_s->size);
/* forcing message not to exceed 64k */
rlen = g_strlen(reason);
if (rlen > 65535)
{
rlen = 65535;
}
out_uint32_be(c->out_s, 1);
/* packet size: 4 + 4 + 2 + 2 + 2 + strlen(reason)*/
/* version + size + cmdset + cmd + msglen + msg */
out_uint32_be(c->out_s, rlen + 14);
out_uint16_be(c->out_s, SCP_COMMAND_SET_MANAGE);
out_uint16_be(c->out_s, SCP_CMD_MNG_LOGIN_DENY);
out_uint16_be(c->out_s, rlen);
out_uint8p(c->out_s, reason, rlen);
if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, rlen + 14))
{
return SCP_SERVER_STATE_NETWORK_ERR;
}
return SCP_SERVER_STATE_END;
}
/* 004 */
enum SCP_CLIENT_STATES_E
scp_v1c_resend_credentials(struct SCP_CONNECTION *c, struct SCP_SESSION *s)
{
tui8 sz;
tui32 size;
init_stream(c->out_s, c->out_s->size);
init_stream(c->in_s, c->in_s->size);
size = 12 + 2 + g_strlen(s->username) + g_strlen(s->password);
/* sending request */
/* header */
out_uint32_be(c->out_s, 1); /* version */
out_uint32_be(c->out_s, size);
out_uint16_be(c->out_s, SCP_COMMAND_SET_DEFAULT);
out_uint16_be(c->out_s, 4);
/* body */
sz = g_strlen(s->username);
out_uint8(c->out_s, sz);
out_uint8p(c->out_s, s->username, sz);
sz = g_strlen(s->password);
out_uint8(c->out_s, sz);
out_uint8p(c->out_s, s->password, sz);
if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, size))
{
return SCP_CLIENT_STATE_NETWORK_ERR;
}
/* wait for response */
return _scp_v1c_check_response(c, s);
}
enum SCP_SERVER_STATES_E
scp_v1s_deny_connection(struct SCP_CONNECTION* c, char* reason)
{
int rlen;
init_stream(c->out_s,c->out_s->size);
/* forcing message not to exceed 64k */
rlen = g_strlen(reason);
if (rlen > 65535)
{
rlen = 65535;
}
out_uint32_be(c->out_s, 1);
/* packet size: 4 + 4 + 2 + 2 + 2 + strlen(reason)*/
/* version + size + cmdset + cmd + msglen + msg */
out_uint32_be(c->out_s, rlen+14);
out_uint16_be(c->out_s, SCP_COMMAND_SET_DEFAULT);
out_uint16_be(c->out_s, 2);
out_uint16_be(c->out_s, rlen);
out_uint8p(c->out_s, reason, rlen);
if (0!=scp_tcp_force_send(c->in_sck, c->out_s->data, rlen+14))
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
return SCP_SERVER_STATE_END;
}
/* 030 */
enum SCP_SERVER_STATES_E
scp_v1s_connect_new_session(struct SCP_CONNECTION* c, SCP_DISPLAY d)
{
/* send password request */
tui32 version=1;
tui32 size=14;
tui16 cmd=30;
init_stream(c->out_s, c->out_s->size);
out_uint32_be(c->out_s, version); /* version */
out_uint32_be(c->out_s, size); /* size */
out_uint16_be(c->out_s, SCP_COMMAND_SET_DEFAULT); /* cmdset */
out_uint16_be(c->out_s, cmd); /* cmd */
out_uint16_be(c->out_s, d); /* display */
if (0!=scp_tcp_force_send(c->in_sck, c->out_s->data, 14))
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
return SCP_SERVER_STATE_OK;
}
enum SCP_SERVER_STATES_E
scp_v0s_deny_connection(struct SCP_CONNECTION *c)
{
out_uint32_be(c->out_s, 0); /* version */
out_uint32_be(c->out_s, 14); /* size */
out_uint16_be(c->out_s, 3); /* cmd */
out_uint16_be(c->out_s, 0); /* data = 0 - means NOT ok*/
out_uint16_be(c->out_s, 0); /* reserved for display number*/
s_mark_end(c->out_s);
if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, c->out_s->end - c->out_s->data))
{
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
LOG_DBG("[v0:%d] connection terminated (denied)", __LINE__);
return SCP_SERVER_STATE_OK;
}
enum SCP_SERVER_STATES_E
scp_v0s_allow_connection(struct SCP_CONNECTION *c, SCP_DISPLAY d)
{
out_uint32_be(c->out_s, 0); /* version */
out_uint32_be(c->out_s, 14); /* size */
out_uint16_be(c->out_s, 3); /* cmd */
out_uint16_be(c->out_s, 1); /* data */
out_uint16_be(c->out_s, d); /* data */
s_mark_end(c->out_s);
if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, c->out_s->end - c->out_s->data))
{
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
LOG_DBG("[v0:%d] connection terminated (allowed)", __LINE__);
return SCP_SERVER_STATE_OK;
}
/* 002 */
enum SCP_SERVER_STATES_E
scp_v1s_mng_allow_connection(struct SCP_CONNECTION *c, struct SCP_SESSION *s)
{
init_stream(c->out_s, c->out_s->size);
out_uint32_be(c->out_s, 1);
/* packet size: 4 + 4 + 2 + 2 */
/* version + size + cmdset + cmd */
out_uint32_be(c->out_s, 12);
out_uint16_be(c->out_s, SCP_COMMAND_SET_MANAGE);
out_uint16_be(c->out_s, SCP_CMD_MNG_LOGIN_ALLOW);
if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, 12))
{
return SCP_SERVER_STATE_NETWORK_ERR;
}
return _scp_v1s_mng_check_response(c, s);
}
enum SCP_SERVER_STATES_E
scp_v0s_replyauthentication(struct SCP_CONNECTION *c, unsigned short int value)
{
out_uint32_be(c->out_s, 0); /* version */
out_uint32_be(c->out_s, 14); /* size */
/* cmd SCP_GW_AUTHENTICATION means authentication reply */
out_uint16_be(c->out_s, SCP_GW_AUTHENTICATION);
out_uint16_be(c->out_s, value); /* reply code */
out_uint16_be(c->out_s, 0); /* dummy data */
s_mark_end(c->out_s);
/* g_writeln("Total number of bytes that will be sent %d",c->out_s->end - c->out_s->data);*/
if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, c->out_s->end - c->out_s->data))
{
/* until syslog merge log_message(s_log, LOG_LEVEL_WARNING, "[v0:%d] connection aborted: network error", __LINE__); */
return SCP_SERVER_STATE_NETWORK_ERR;
}
/* until syslog merge LOG_DBG(s_log, "[v0:%d] connection terminated (scp_v0s_deny_authentication)", __LINE__);*/
return SCP_SERVER_STATE_OK;
}
/* 032 */
enum SCP_SERVER_STATES_E
scp_v1s_connection_error(struct SCP_CONNECTION* c, char* error)
{
tui16 len;
len = g_strlen(error);
init_stream(c->out_s,c->out_s->size);
out_uint32_be(c->out_s, 1);
/* packet size: 4 + 4 + 2 + 2 + len */
/* version + size + cmdset + cmd */
out_uint32_be(c->out_s, (12 + len));
out_uint16_be(c->out_s, SCP_COMMAND_SET_DEFAULT);
out_uint16_be(c->out_s, SCP_CMD_CONN_ERROR);
if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, (12 + len)))
{
return SCP_SERVER_STATE_NETWORK_ERR;
}
return SCP_SERVER_STATE_END;
}
/* 001 */
enum SCP_CLIENT_STATES_E
scp_v1c_mng_connect(struct SCP_CONNECTION *c, struct SCP_SESSION *s)
{
tui8 sz;
tui32 size;
init_stream(c->out_s, c->out_s->size);
init_stream(c->in_s, c->in_s->size);
size = 12 + 4 + g_strlen(s->hostname) + g_strlen(s->username) +
g_strlen(s->password);
if (s->addr_type == SCP_ADDRESS_TYPE_IPV4)
{
size = size + 4;
}
else
{
size = size + 16;
}
/* sending request */
/* header */
out_uint32_be(c->out_s, 1); /* version */
out_uint32_be(c->out_s, size);
out_uint16_be(c->out_s, SCP_COMMAND_SET_MANAGE);
out_uint16_be(c->out_s, SCP_CMD_MNG_LOGIN);
/* data */
sz = g_strlen(s->username);
out_uint8(c->out_s, sz);
out_uint8p(c->out_s, s->username, sz);
sz = g_strlen(s->password);
out_uint8(c->out_s, sz);
out_uint8p(c->out_s, s->password, sz);
/* address */
out_uint8(c->out_s, s->addr_type);
if (s->addr_type == SCP_ADDRESS_TYPE_IPV4)
{
out_uint32_be(c->out_s, s->ipv4addr);
}
else
{
out_uint8p(c->out_s, s->ipv6addr, 16);
}
/* hostname */
sz = g_strlen(s->hostname);
out_uint8(c->out_s, sz);
out_uint8p(c->out_s, s->hostname, sz);
if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, size))
{
log_message(LOG_LEVEL_WARNING, "[v1c_mng:%d] connection aborted: network error", __LINE__);
return SCP_CLIENT_STATE_NETWORK_ERR;
}
/* wait for response */
return _scp_v1c_mng_check_response(c, s);
}
/* 004 */
enum SCP_CLIENT_STATES_E
scp_v1c_mng_get_session_list(struct SCP_CONNECTION *c, int *scount,
struct SCP_DISCONNECTED_SESSION **s)
{
tui32 version = 1;
tui32 size = 12;
tui16 cmd = SCP_CMD_MNG_LIST_REQ; /* request session list */
tui32 sescnt = 0; /* total session number */
tui32 sestmp = 0; /* additional total session number */
tui8 pktcnt = 0; /* packet session count */
tui32 totalcnt = 0; /* session counter */
tui8 continued = 0; /* continue flag */
int firstpkt = 1; /* "first packet" flag */
int idx;
struct SCP_DISCONNECTED_SESSION *ds = 0;
// tui8 addr[16];
init_stream(c->out_s, c->out_s->size);
/* we request session list */
out_uint32_be(c->out_s, version); /* version */
out_uint32_be(c->out_s, size); /* size */
out_uint16_be(c->out_s, SCP_COMMAND_SET_MANAGE); /* cmdset */
out_uint16_be(c->out_s, cmd); /* cmd */
if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, size))
{
log_message(LOG_LEVEL_WARNING, "[v1c_mng:%d] connection aborted: network error", __LINE__);
return SCP_CLIENT_STATE_NETWORK_ERR;
}
do
{
/* then we wait for server response */
init_stream(c->in_s, c->in_s->size);
if (0 != scp_tcp_force_recv(c->in_sck, c->in_s->data, 8))
{
log_message(LOG_LEVEL_WARNING, "[v1c_mng:%d] connection aborted: network error", __LINE__);
return SCP_CLIENT_STATE_NETWORK_ERR;
}
in_uint32_be(c->in_s, version);
if (version != 1)
{
log_message(LOG_LEVEL_WARNING, "[v1c_mng:%d] connection aborted: version error", __LINE__);
return SCP_CLIENT_STATE_VERSION_ERR;
}
in_uint32_be(c->in_s, size);
if (size < 12)
{
log_message(LOG_LEVEL_WARNING, "[v1c_mng:%d] connection aborted: size error", __LINE__);
return SCP_CLIENT_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, "[v1c_mng:%d] connection aborted: network error", __LINE__);
return SCP_CLIENT_STATE_NETWORK_ERR;
}
in_uint16_be(c->in_s, cmd);
if (cmd != SCP_COMMAND_SET_MANAGE)
{
log_message(LOG_LEVEL_WARNING, "[v1c_mng:%d] connection aborted: sequence error", __LINE__);
return SCP_CLIENT_STATE_SEQUENCE_ERR;
}
in_uint16_be(c->in_s, cmd);
if (cmd != SCP_CMD_MNG_LIST) /* session list */
{
log_message(LOG_LEVEL_WARNING, "[v1c_mng:%d] connection aborted: sequence error", __LINE__);
return SCP_CLIENT_STATE_SEQUENCE_ERR;
}
if (firstpkt)
{
firstpkt = 0;
in_uint32_be(c->in_s, sescnt);
sestmp = sescnt;
if (0 == sescnt)
{
/* return data... */
(*scount) = sescnt;
(*s) = NULL;
LOG_DBG("[v1c_mng] end list - no session on TS");
return SCP_CLIENT_STATE_LIST_OK;
}
ds = g_malloc(sizeof(struct SCP_DISCONNECTED_SESSION) * sescnt, 0);
if (ds == 0)
{
log_message(LOG_LEVEL_WARNING, "[v1c_mng:%d] connection aborted: internal error", __LINE__);
return SCP_CLIENT_STATE_INTERNAL_ERR;
}
}
else
{
in_uint32_be(c->in_s, sestmp);
}
in_uint8(c->in_s, continued);
in_uint8(c->in_s, pktcnt);
for (idx = 0; idx < pktcnt; idx++)
{
in_uint32_be(c->in_s, (ds[totalcnt]).SID); /* session id */
in_uint8(c->in_s, (ds[totalcnt]).type);
in_uint16_be(c->in_s, (ds[totalcnt]).height);
in_uint16_be(c->in_s, (ds[totalcnt]).width);
in_uint8(c->in_s, (ds[totalcnt]).bpp);
in_uint8(c->in_s, (ds[totalcnt]).idle_days);
in_uint8(c->in_s, (ds[totalcnt]).idle_hours);
in_uint8(c->in_s, (ds[totalcnt]).idle_minutes);
in_uint16_be(c->in_s, (ds[totalcnt]).conn_year);
in_uint8(c->in_s, (ds[totalcnt]).conn_month);
in_uint8(c->in_s, (ds[totalcnt]).conn_day);
in_uint8(c->in_s, (ds[totalcnt]).conn_hour);
in_uint8(c->in_s, (ds[totalcnt]).conn_minute);
in_uint8(c->in_s, (ds[totalcnt]).addr_type);
if ((ds[totalcnt]).addr_type == SCP_ADDRESS_TYPE_IPV4)
{
in_uint32_be(c->in_s, (ds[totalcnt]).ipv4addr);
}
if ((ds[totalcnt]).addr_type == SCP_ADDRESS_TYPE_IPV6)
{
in_uint8a(c->in_s, (ds[totalcnt]).ipv6addr, 16);
}
totalcnt++;
}
}
while (continued);
/* return data... */
(*scount) = sescnt;
(*s) = ds;
LOG_DBG("[v1c_mng] end list");
return SCP_CLIENT_STATE_LIST_OK;
}
/* 001 */
enum SCP_CLIENT_STATES_E
scp_v1c_connect(struct SCP_CONNECTION *c, struct SCP_SESSION *s)
{
tui8 sz;
tui32 size;
init_stream(c->out_s, c->out_s->size);
init_stream(c->in_s, c->in_s->size);
size = 19 + 17 + 4 + g_strlen(s->hostname) + g_strlen(s->username) +
g_strlen(s->password);
if (s->addr_type == SCP_ADDRESS_TYPE_IPV4)
{
size = size + 4;
}
else
{
size = size + 16;
}
/* sending request */
/* header */
out_uint32_be(c->out_s, 1); /* version */
out_uint32_be(c->out_s, size);
out_uint16_be(c->out_s, SCP_COMMAND_SET_DEFAULT);
out_uint16_be(c->out_s, 1);
/* body */
out_uint8(c->out_s, s->type);
out_uint16_be(c->out_s, s->height);
out_uint16_be(c->out_s, s->width);
out_uint8(c->out_s, s->bpp);
out_uint8(c->out_s, s->rsr);
out_uint8p(c->out_s, s->locale, 17);
out_uint8(c->out_s, s->addr_type);
if (s->addr_type == SCP_ADDRESS_TYPE_IPV4)
{
out_uint32_be(c->out_s, s->ipv4addr);
}
else if (s->addr_type == SCP_ADDRESS_TYPE_IPV6)
{
out_uint8p(c->out_s, s->ipv6addr, 16);
}
sz = g_strlen(s->hostname);
out_uint8(c->out_s, sz);
out_uint8p(c->out_s, s->hostname, sz);
sz = g_strlen(s->username);
out_uint8(c->out_s, sz);
out_uint8p(c->out_s, s->username, sz);
sz = g_strlen(s->password);
out_uint8(c->out_s, sz);
out_uint8p(c->out_s, s->password, sz);
if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, size))
{
return SCP_CLIENT_STATE_NETWORK_ERR;
}
/* wait for response */
return _scp_v1c_check_response(c, s);
}
/* 041 */
enum SCP_CLIENT_STATES_E
scp_v1c_get_session_list(struct SCP_CONNECTION *c, int *scount,
struct SCP_DISCONNECTED_SESSION **s)
{
tui32 version = 1;
tui32 size = 12;
tui16 cmd = 41;
tui32 sescnt = 0; /* total session number */
tui32 sestmp = 0; /* additional total session number */
tui8 pktcnt = 0; /* packet session count */
tui32 totalcnt = 0; /* session counter */
tui8 continued = 0; /* continue flag */
int firstpkt = 1; /* "first packet" flag */
int idx;
struct SCP_DISCONNECTED_SESSION *ds = 0;
init_stream(c->out_s, c->out_s->size);
/* we request session list */
out_uint32_be(c->out_s, version); /* version */
out_uint32_be(c->out_s, size); /* size */
out_uint16_be(c->out_s, SCP_COMMAND_SET_DEFAULT); /* cmdset */
out_uint16_be(c->out_s, cmd); /* cmd */
if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, size))
{
return SCP_CLIENT_STATE_NETWORK_ERR;
}
do
{
/* then we wait for server response */
init_stream(c->in_s, c->in_s->size);
if (0 != scp_tcp_force_recv(c->in_sck, c->in_s->data, 8))
{
return SCP_CLIENT_STATE_NETWORK_ERR;
}
in_uint32_be(c->in_s, version);
if (version != 1)
{
return SCP_CLIENT_STATE_VERSION_ERR;
}
in_uint32_be(c->in_s, size);
if (size < 12)
{
return SCP_CLIENT_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))
{
return SCP_CLIENT_STATE_NETWORK_ERR;
}
in_uint16_be(c->in_s, cmd);
if (cmd != SCP_COMMAND_SET_DEFAULT)
{
return SCP_CLIENT_STATE_SEQUENCE_ERR;
}
in_uint16_be(c->in_s, cmd);
if (cmd != 42)
{
return SCP_CLIENT_STATE_SEQUENCE_ERR;
}
if (firstpkt)
{
firstpkt = 0;
in_uint32_be(c->in_s, sescnt);
sestmp = sescnt;
ds = g_new(struct SCP_DISCONNECTED_SESSION, sescnt);
if (ds == 0)
{
return SCP_CLIENT_STATE_INTERNAL_ERR;
}
}
else
{
in_uint32_be(c->in_s, sestmp);
}
in_uint8(c->in_s, continued);
in_uint8(c->in_s, pktcnt);
for (idx = 0; idx < pktcnt; idx++)
{
in_uint32_be(c->in_s, (ds[totalcnt]).SID); /* session id */
in_uint8(c->in_s, (ds[totalcnt]).type);
in_uint16_be(c->in_s, (ds[totalcnt]).height);
in_uint16_be(c->in_s, (ds[totalcnt]).width);
in_uint8(c->in_s, (ds[totalcnt]).bpp);
in_uint8(c->in_s, (ds[totalcnt]).idle_days);
in_uint8(c->in_s, (ds[totalcnt]).idle_hours);
in_uint8(c->in_s, (ds[totalcnt]).idle_minutes);
in_uint16_be(c->in_s, (ds[totalcnt]).conn_year);
in_uint8(c->in_s, (ds[totalcnt]).conn_month);
in_uint8(c->in_s, (ds[totalcnt]).conn_day);
in_uint8(c->in_s, (ds[totalcnt]).conn_hour);
in_uint8(c->in_s, (ds[totalcnt]).conn_minute);
in_uint8(c->in_s, (ds[totalcnt]).addr_type);
if ((ds[totalcnt]).addr_type == SCP_ADDRESS_TYPE_IPV4)
{
in_uint32_be(c->in_s, (ds[totalcnt]).ipv4addr);
}
else if ((ds[totalcnt]).addr_type == SCP_ADDRESS_TYPE_IPV6)
{
in_uint8a(c->in_s, (ds[totalcnt]).ipv6addr, 16);
}
totalcnt++;
}
}
/* 006 */
enum SCP_SERVER_STATES_E
scp_v1s_mng_list_sessions(struct SCP_CONNECTION *c, struct SCP_SESSION *s,
int sescnt, struct SCP_DISCONNECTED_SESSION *ds)
{
tui32 version = 1;
tui32 size = 12;
tui16 cmd = SCP_CMD_MNG_LIST;
int pktcnt;
int idx;
int sidx;
int pidx;
struct SCP_DISCONNECTED_SESSION *cds;
/* calculating the number of packets to send */
pktcnt = sescnt / SCP_SERVER_MAX_LIST_SIZE;
if ((sescnt % SCP_SERVER_MAX_LIST_SIZE) != 0)
{
pktcnt++;
}
for (idx = 0; idx < pktcnt; idx++)
{
/* ok, we send session session list */
init_stream(c->out_s, c->out_s->size);
/* size: ver+size+cmdset+cmd+sescnt+continue+count */
size = 4 + 4 + 2 + 2 + 4 + 1 + 1;
/* header */
s_push_layer(c->out_s, channel_hdr, 8);
out_uint16_be(c->out_s, SCP_COMMAND_SET_MANAGE);
out_uint16_be(c->out_s, cmd);
/* session count */
out_uint32_be(c->out_s, sescnt);
/* setting the continue flag */
if ((idx + 1)*SCP_SERVER_MAX_LIST_SIZE >= sescnt)
{
out_uint8(c->out_s, 0);
/* setting session count for this packet */
pidx = sescnt - (idx * SCP_SERVER_MAX_LIST_SIZE);
out_uint8(c->out_s, pidx);
}
else
{
out_uint8(c->out_s, 1);
/* setting session count for this packet */
pidx = SCP_SERVER_MAX_LIST_SIZE;
out_uint8(c->out_s, pidx);
}
/* adding session descriptors */
for (sidx = 0; sidx < pidx; sidx++)
{
/* shortcut to the current session to send */
cds = ds + ((idx) * SCP_SERVER_MAX_LIST_SIZE) + sidx;
/* session data */
out_uint32_be(c->out_s, cds->SID); /* session id */
out_uint8(c->out_s, cds->type);
out_uint16_be(c->out_s, cds->height);
out_uint16_be(c->out_s, cds->width);
out_uint8(c->out_s, cds->bpp);
out_uint8(c->out_s, cds->idle_days);
out_uint8(c->out_s, cds->idle_hours);
out_uint8(c->out_s, cds->idle_minutes);
size += 13;
out_uint16_be(c->out_s, cds->conn_year);
out_uint8(c->out_s, cds->conn_month);
out_uint8(c->out_s, cds->conn_day);
out_uint8(c->out_s, cds->conn_hour);
out_uint8(c->out_s, cds->conn_minute);
out_uint8(c->out_s, cds->addr_type);
size += 7;
if (cds->addr_type == SCP_ADDRESS_TYPE_IPV4)
{
in_uint32_be(c->out_s, cds->ipv4addr);
size += 4;
}
else if (cds->addr_type == SCP_ADDRESS_TYPE_IPV6)
{
in_uint8a(c->out_s, cds->ipv6addr, 16);
size += 16;
}
}
s_pop_layer(c->out_s, channel_hdr);
out_uint32_be(c->out_s, version);
out_uint32_be(c->out_s, size);
if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, size))
{
log_message(LOG_LEVEL_WARNING, "[v1s_mng:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
}
return _scp_v1s_mng_check_response(c, s);
}
enum SCP_CLIENT_STATES_E
scp_v0c_connect(struct SCP_CONNECTION *c, struct SCP_SESSION *s)
{
tui32 version;
tui32 size;
tui16 sz;
init_stream(c->in_s, c->in_s->size);
init_stream(c->out_s, c->in_s->size);
LOG_DBG("[v0:%d] starting connection", __LINE__);
g_tcp_set_non_blocking(c->in_sck);
g_tcp_set_no_delay(c->in_sck);
s_push_layer(c->out_s, channel_hdr, 8);
/* code */
if (s->type == SCP_SESSION_TYPE_XVNC)
{
out_uint16_be(c->out_s, 0);
}
else if (s->type == SCP_SESSION_TYPE_XRDP)
{
out_uint16_be(c->out_s, 10);
}
else if (s->type == SCP_SESSION_TYPE_XORG)
{
out_uint16_be(c->out_s, 20);
}
else
{
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: network error", __LINE__);
return SCP_CLIENT_STATE_INTERNAL_ERR;
}
sz = g_strlen(s->username);
out_uint16_be(c->out_s, sz);
out_uint8a(c->out_s, s->username, sz);
sz = g_strlen(s->password);
out_uint16_be(c->out_s, sz);
out_uint8a(c->out_s, s->password, sz);
out_uint16_be(c->out_s, s->width);
out_uint16_be(c->out_s, s->height);
out_uint16_be(c->out_s, s->bpp);
s_mark_end(c->out_s);
s_pop_layer(c->out_s, channel_hdr);
/* version */
out_uint32_be(c->out_s, 0);
/* size */
out_uint32_be(c->out_s, c->out_s->end - c->out_s->data);
if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, c->out_s->end - c->out_s->data))
{
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: network error", __LINE__);
return SCP_CLIENT_STATE_NETWORK_ERR;
}
if (0 != scp_tcp_force_recv(c->in_sck, c->in_s->data, 8))
{
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: network error", __LINE__);
return SCP_CLIENT_STATE_NETWORK_ERR;
}
in_uint32_be(c->in_s, version);
if (0 != version)
{
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: version error", __LINE__);
return SCP_CLIENT_STATE_VERSION_ERR;
}
in_uint32_be(c->in_s, size);
if (size < 14)
{
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: packet size error", __LINE__);
return SCP_CLIENT_STATE_SIZE_ERR;
}
/* getting payload */
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, "[v0:%d] connection aborted: network error", __LINE__);
return SCP_CLIENT_STATE_NETWORK_ERR;
}
/* check code */
in_uint16_be(c->in_s, sz);
if (3 != sz)
{
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: sequence error", __LINE__);
return SCP_CLIENT_STATE_SEQUENCE_ERR;
}
/* message payload */
in_uint16_be(c->in_s, sz);
if (1 != sz)
{
log_message(LOG_LEVEL_WARNING, "[v0:%d] connection aborted: connection denied", __LINE__);
return SCP_CLIENT_STATE_CONNECTION_DENIED;
}
in_uint16_be(c->in_s, sz);
s->display = sz;
LOG_DBG("[v0:%d] connection terminated", __LINE__);
return SCP_CLIENT_STATE_END;
}
/* 040 */
enum SCP_SERVER_STATES_E
scp_v1s_list_sessions(struct SCP_CONNECTION* c, int sescnt, struct SCP_DISCONNECTED_SESSION* ds, SCP_SID* sid)
{
tui32 version=1;
tui32 size=12;
tui16 cmd=40;
int pktcnt;
int idx;
int sidx;
int pidx;
struct SCP_DISCONNECTED_SESSION* cds;
/* first we send a notice that we have some disconnected sessions */
init_stream(c->out_s, c->out_s->size);
out_uint32_be(c->out_s, version); /* version */
out_uint32_be(c->out_s, size); /* size */
out_uint16_be(c->out_s, SCP_COMMAND_SET_DEFAULT); /* cmdset */
out_uint16_be(c->out_s, cmd); /* cmd */
if (0!=scp_tcp_force_send(c->in_sck, c->out_s->data, size))
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
/* then we wait for client ack */
#warning maybe this message could say if the session should be resized on
#warning server side or client side
init_stream(c->in_s, c->in_s->size);
if (0!=scp_tcp_force_recv(c->in_sck, c->in_s->data, 8))
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
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;
}
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;
}
in_uint16_be(c->in_s, cmd);
if (cmd != SCP_COMMAND_SET_DEFAULT)
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: sequence error", __LINE__);
return SCP_SERVER_STATE_SEQUENCE_ERR;
}
in_uint16_be(c->in_s, cmd);
if (cmd != 41)
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: sequence error", __LINE__);
return SCP_SERVER_STATE_SEQUENCE_ERR;
}
/* calculating the number of packets to send */
pktcnt=sescnt/SCP_SERVER_MAX_LIST_SIZE;
if ((sescnt%SCP_SERVER_MAX_LIST_SIZE)!=0)
{
pktcnt++;
}
for (idx=0; idx<pktcnt; idx++)
{
/* ok, we send session session list */
init_stream(c->out_s, c->out_s->size);
/* size: ver+size+cmdset+cmd+sescnt+continue+count */
size=4+4+2+2+4+1+1;
/* header */
cmd=42;
s_push_layer(c->out_s, channel_hdr, 8);
out_uint16_be(c->out_s, SCP_COMMAND_SET_DEFAULT);
out_uint16_be(c->out_s, cmd);
/* session count */
out_uint32_be(c->out_s, sescnt);
/* setting the continue flag */
if ((idx+1)*SCP_SERVER_MAX_LIST_SIZE >= sescnt)
{
out_uint8(c->out_s, 0);
/* setting session count for this packet */
pidx=sescnt-(idx*SCP_SERVER_MAX_LIST_SIZE);
out_uint8(c->out_s, pidx);
}
else
{
out_uint8(c->out_s, 1);
/* setting session count for this packet */
pidx=SCP_SERVER_MAX_LIST_SIZE;
out_uint8(c->out_s, pidx);
}
/* adding session descriptors */
for (sidx=0; sidx<pidx; sidx++)
{
/* shortcut to the current session to send */
cds=ds+((idx)*SCP_SERVER_MAX_LIST_SIZE)+sidx;
/* session data */
out_uint32_be(c->out_s, cds->SID); /* session id */
out_uint8(c->out_s, cds->type);
out_uint16_be(c->out_s, cds->height);
out_uint16_be(c->out_s, cds->width);
out_uint8(c->out_s, cds->bpp);
out_uint8(c->out_s, cds->idle_days);
out_uint8(c->out_s, cds->idle_hours);
out_uint8(c->out_s, cds->idle_minutes);
size += 13;
out_uint16_be(c->out_s, cds->conn_year);
out_uint8(c->out_s, cds->conn_month);
out_uint8(c->out_s, cds->conn_day);
out_uint8(c->out_s, cds->conn_hour);
out_uint8(c->out_s, cds->conn_minute);
out_uint8(c->out_s, cds->addr_type);
size += 7;
if (cds->addr_type == SCP_ADDRESS_TYPE_IPV4)
{
in_uint32_be(c->out_s, cds->ipv4addr);
size += 4;
}
else if (cds->addr_type == SCP_ADDRESS_TYPE_IPV6)
{
in_uint8a(c->out_s, cds->ipv6addr, 16);
size += 16;
}
}
s_pop_layer(c->out_s, channel_hdr);
out_uint32_be(c->out_s, version);
out_uint32_be(c->out_s, size);
if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, size))
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
}
/* we get the response */
init_stream(c->in_s, c->in_s->size);
if (0!=scp_tcp_force_recv(c->in_sck, c->in_s->data, (8)))
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
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;
}
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;
}
/* rest of the packet */
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;
}
in_uint16_be(c->in_s, cmd);
if (cmd != SCP_COMMAND_SET_DEFAULT)
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: sequence error", __LINE__);
return SCP_SERVER_STATE_SEQUENCE_ERR;
}
in_uint16_be(c->in_s, cmd);
if (cmd == 43)
{
/* select session */
in_uint32_be(c->in_s, (*sid));
/* checking sid value */
for (idx=0; idx<sescnt; idx++)
{
/* the sid is valid */
if (ds[idx].SID==(*sid))
{
/* ok, session selected */
return SCP_SERVER_STATE_OK;
}
}
/* if we got here, the requested sid wasn't one from the list we sent */
/* we should kill the connection */
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: internal error (no such session in list)", __LINE__);
return SCP_CLIENT_STATE_INTERNAL_ERR;
}
else if (cmd == 44)
{
/* cancel connection */
return SCP_SERVER_STATE_SELECTION_CANCEL;
}
// else if (cmd == 45)
// {
// /* force new connection */
// return SCP_SERVER_STATE_FORCE_NEW;
// }
else
{
/* wrong response */
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: sequence error", __LINE__);
return SCP_SERVER_STATE_SEQUENCE_ERR;
}
return SCP_SERVER_STATE_OK;
}
enum SCP_SERVER_STATES_E
scp_v1s_request_password(struct SCP_CONNECTION* c, struct SCP_SESSION* s, char* reason)
{
tui8 sz;
tui32 version;
tui32 size;
tui16 cmdset;
tui16 cmd;
int rlen;
char buf[257];
init_stream(c->in_s, c->in_s->size);
init_stream(c->out_s, c->out_s->size);
/* forcing message not to exceed 64k */
rlen = g_strlen(reason);
if (rlen > 65535)
{
rlen = 65535;
}
/* send password request */
version=1;
cmd=3;
out_uint32_be(c->out_s, version); /* version */
out_uint32_be(c->out_s, 14+rlen); /* size */
out_uint16_be(c->out_s, SCP_COMMAND_SET_DEFAULT); /* cmdset */
out_uint16_be(c->out_s, cmd); /* cmd */
out_uint16_be(c->out_s, rlen);
out_uint8p(c->out_s, reason, rlen);
if (0!=scp_tcp_force_send(c->in_sck, c->out_s->data, 14+rlen))
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
/* receive password & username */
if (0!=scp_tcp_force_recv(c->in_sck, c->in_s->data, 8))
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: network error", __LINE__);
return SCP_SERVER_STATE_NETWORK_ERR;
}
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;
}
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;
}
in_uint16_be(c->in_s, cmdset);
if (cmdset != SCP_COMMAND_SET_DEFAULT)
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: sequence error", __LINE__);
return SCP_SERVER_STATE_SEQUENCE_ERR;
}
in_uint16_be(c->in_s, cmd);
if (cmd != 4)
{
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: sequence error", __LINE__);
return SCP_SERVER_STATE_SEQUENCE_ERR;
}
buf[256] = '\0';
/* reading username */
in_uint8(c->in_s, sz);
buf[sz] = '\0';
in_uint8a(c->in_s, buf, sz);
if (0 != scp_session_set_username(s, buf))
{
scp_session_destroy(s);
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(s, buf))
{
scp_session_destroy(s);
log_message(LOG_LEVEL_WARNING, "[v1s:%d] connection aborted: internal error", __LINE__);
return SCP_SERVER_STATE_INTERNAL_ERR;
}
return SCP_SERVER_STATE_OK;
}