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SCTPasp_PT.cc
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SCTPasp_PT.cc
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/******************************************************************************
* Copyright (c) 2000-2019 Ericsson Telecom AB
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.html
*
* Contributors:
* Peter Dimitrov- initial implementation and initial documentation
* Adam Delic
* Eduard Czimbalmos
* Endre Kulcsar
* Gabor Bettesch
* Gabor Szalai
* Tamas Buti
* Zoltan Medve
******************************************************************************/
//
// File: SCTPasp_PT.cc
// Description: SCTPasp test port source
// Rev: R11A
// Prodnr: CNL 113 469
//
#include "SCTPasp_PT.hh"
#include <sys/types.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <netdb.h>
#include <stdarg.h>
#include <memory.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#define BUFLEN 1024
#define MAP_LENGTH 10
#ifdef SCTP_ADAPTION_LAYER
#ifdef LKSCTP_1_0_7
#undef LKSCTP_1_0_7
#error LKSCTP_1_0_7 defined but the lksctp older than 1.0.7. Use only -DUSE_SCTP, version is automatically selected
#endif
#ifdef LKSCTP_1_0_9
#error LKSCTP_1_0_9 defined but the lksctp older than 1.0.7. Use only -DUSE_SCTP, version is automatically selected
#undef LKSCTP_1_0_9
#endif
#else
// 1.0.7 or newer
#ifdef SCTP_AUTH_CHUNK
// 1.0.9 or newer
#ifdef LKSCTP_1_0_7
#undef LKSCTP_1_0_7
#error LKSCTP_1_0_7 defined but the lksctp newer than 1.0.7. Use only -DUSE_SCTP, version is automatically selected
#endif
#ifndef LKSCTP_1_0_9
#define LKSCTP_1_0_9
#endif
#else
// 1.0.7
#ifdef LKSCTP_1_0_9
#undef LKSCTP_1_0_9
#error LKSCTP_1_0_9 defined but the lksctp older than 1.0.9. Use only -DUSE_SCTP, version is automatically selected
#endif
#ifndef LKSCTP_1_0_7
#define LKSCTP_1_0_7
#endif
#endif
#endif
namespace SCTPasp__PortType {
struct SCTPasp__PT_PROVIDER::fd_map_item
{ // used by map operations
int fd; // socket descriptor
boolean erased;
boolean processing_message; // if true only part of the message is received
boolean einprogress; // connection establishment is in progress
void * buf; // buffer
ssize_t buflen; // length of the buffer
ssize_t nr; // number of received bytes
struct sockaddr_in sin; // storing remote address
};
struct SCTPasp__PT_PROVIDER::fd_map_server_item // server item
{ // used by map operations
int fd; // socket descriptor
boolean erased;
struct in_addr local_IP_address;
unsigned short local_port;
};
SCTPasp__PT_PROVIDER::SCTPasp__PT_PROVIDER(const char *par_port_name)
: PORT(par_port_name)
{
simple_mode = FALSE;
reconnect = FALSE;
reconnect_max_attempts = 6;
server_mode = FALSE;
debug = FALSE;
server_backlog = 1;
local_IP_address.s_addr = INADDR_ANY;
(void) memset(&initmsg, 0, sizeof(struct sctp_initmsg));
initmsg.sinit_num_ostreams = 64;
initmsg.sinit_max_instreams = 64;
initmsg.sinit_max_attempts = 0;
initmsg.sinit_max_init_timeo = 0;
(void) memset(&events, 0, sizeof (events));
events.sctp_data_io_event = TRUE;
events.sctp_association_event = TRUE;
events.sctp_address_event = TRUE;
events.sctp_send_failure_event = TRUE;
events.sctp_peer_error_event = TRUE;
events.sctp_shutdown_event = TRUE;
events.sctp_partial_delivery_event = TRUE;
#if defined(LKSCTP_1_0_7) || defined(LKSCTP_1_0_9)
events.sctp_adaptation_layer_event = TRUE;
#else
events.sctp_adaption_layer_event = TRUE;
#endif
local_port_is_present = FALSE;
peer_IP_address_is_present = FALSE;
peer_port_is_present = FALSE;
fd_map=NULL;
list_len=0;
fd_map_server=NULL;
list_len_server=0;
fd = -1;
FD_ZERO(&readfds);
FD_ZERO(&writefds);
local_port=-1;
peer_port=-1;
receiving_fd=-1;
}
SCTPasp__PT_PROVIDER::~SCTPasp__PT_PROVIDER()
{
for(int i=0;i<list_len;i++) map_delete_item(i);
Free(fd_map);
if(!simple_mode)
{
for(int i=0;i<list_len_server;i++) map_delete_item_server(i);
Free(fd_map_server);
}
}
void SCTPasp__PT_PROVIDER::set_parameter(const char *parameter_name,
const char *parameter_value)
{
if(strcmp(parameter_name, "simple_mode") == 0)
{
if (strcasecmp(parameter_value,"yes") == 0)
simple_mode = TRUE;
else if(strcasecmp(parameter_value,"no") == 0)
simple_mode = FALSE;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. Only yes and no can be used!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "reconnect") == 0)
{
if (strcasecmp(parameter_value,"yes") == 0)
reconnect = TRUE;
else if(strcasecmp(parameter_value,"no") == 0)
reconnect = FALSE;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. Only yes and no can be used!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "reconnect_max_attempts") == 0)
{
int value;
if ( (sscanf(parameter_value, "%d", &value) == 1) && (value>=0) )
reconnect_max_attempts = value;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be positive integer!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "server_mode") == 0)
{
if (strcasecmp(parameter_value,"yes") == 0)
server_mode = TRUE;
else if(strcasecmp(parameter_value,"no") == 0)
server_mode = FALSE;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. Only yes and no can be used!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "debug") == 0)
{
if (strcasecmp(parameter_value,"yes") == 0)
debug = TRUE;
else if(strcasecmp(parameter_value,"no") == 0)
debug = FALSE;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. Only yes and no can be used!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "server_backlog") == 0)
{
int value;
if ( (sscanf(parameter_value, "%d", &value) == 1) && (value>=0) )
server_backlog = value;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be positive integer!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "local_IP_address") == 0)
{
local_IP_address = get_in_addr((const char *) parameter_value);
}
else if(strcmp(parameter_name, "local_port") == 0)
{
unsigned short value;
if (sscanf(parameter_value, "%hu", &value) == 1)
{
local_port = value;
local_port_is_present = TRUE;
}
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be positive integer!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "peer_IP_address") == 0)
{
peer_IP_address = get_in_addr((const char *) parameter_value);
peer_IP_address_is_present = TRUE;
}
else if(strcmp(parameter_name, "peer_port") == 0)
{
unsigned short value;
if (sscanf(parameter_value, "%hu", &value) == 1)
{
peer_port = value;
peer_port_is_present = TRUE;
}
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be positive integer!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "sinit_num_ostreams") == 0)
{
long value;
if ( (sscanf(parameter_value, "%ld", &value) == 1) && (value>=0) )
initmsg.sinit_num_ostreams = value;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be positive integer!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "sinit_max_instreams") == 0)
{
long value;
if ( (sscanf(parameter_value, "%ld", &value) == 1) && (value>=0) )
initmsg.sinit_max_instreams = value;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be positive integer!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "sinit_max_attempts") == 0)
{
long value;
if ( (sscanf(parameter_value, "%ld", &value) == 1) && (value>=0) )
initmsg.sinit_max_attempts = value;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be positive integer!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "sinit_max_init_timeo") == 0)
{
long value;
if ( (sscanf(parameter_value, "%ld", &value) == 1) && (value>=0) )
initmsg.sinit_max_init_timeo = value;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be positive integer!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "sctp_association_event") == 0)
{
if (strcasecmp(parameter_value,"enabled") == 0)
events.sctp_association_event = TRUE;
else if(strcasecmp(parameter_value,"disabled") == 0)
events.sctp_association_event = FALSE;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be enabled or disabled!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "sctp_address_event") == 0)
{
if (strcasecmp(parameter_value,"enabled") == 0)
events.sctp_address_event = TRUE;
else if(strcasecmp(parameter_value,"disabled") == 0)
events.sctp_address_event = FALSE;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be enabled or disabled!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "sctp_send_failure_event") == 0)
{
if (strcasecmp(parameter_value,"enabled") == 0)
events.sctp_send_failure_event = TRUE;
else if(strcasecmp(parameter_value,"disabled") == 0)
events.sctp_send_failure_event = FALSE;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be enabled or disabled!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "sctp_peer_error_event") == 0)
{
if (strcasecmp(parameter_value,"enabled") == 0)
events.sctp_peer_error_event = TRUE;
else if(strcasecmp(parameter_value,"disabled") == 0)
events.sctp_peer_error_event = FALSE;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be enabled or disabled!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "sctp_shutdown_event") == 0)
{
if (strcasecmp(parameter_value,"enabled") == 0)
events.sctp_shutdown_event = TRUE;
else if(strcasecmp(parameter_value,"disabled") == 0)
events.sctp_shutdown_event = FALSE;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be enabled or disabled!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "sctp_partial_delivery_event") == 0)
{
if (strcasecmp(parameter_value,"enabled") == 0)
events.sctp_partial_delivery_event = TRUE;
else if(strcasecmp(parameter_value,"disabled") == 0)
events.sctp_partial_delivery_event = FALSE;
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be enabled or disabled!" ,
parameter_value, parameter_name);
}
else if(strcmp(parameter_name, "sctp_adaption_layer_event") == 0)
{
if (strcasecmp(parameter_value,"enabled") == 0)
#if defined(LKSCTP_1_0_7) || defined(LKSCTP_1_0_9)
events.sctp_adaptation_layer_event = TRUE;
#else
events.sctp_adaption_layer_event = TRUE;
#endif
else if(strcasecmp(parameter_value,"disabled") == 0)
#if defined(LKSCTP_1_0_7) || defined(LKSCTP_1_0_9)
events.sctp_adaptation_layer_event = FALSE;
#else
events.sctp_adaption_layer_event = FALSE;
#endif
else
error("set_parameter(): Invalid parameter value: %s for parameter %s. It should be enabled or disabled!" ,
parameter_value, parameter_name);
}
else
TTCN_warning("%s: unknown & unhandled parameter: %s",
get_name(), parameter_name);
errno = 0;
}
void SCTPasp__PT_PROVIDER::Event_Handler(const fd_set *read_fds,
const fd_set *write_fds, const fd_set */*error_fds*/,
double /*time_since_last_call*/)
{
// Accepting new client
if(!simple_mode)
{
for(int i=0;i<list_len_server;i++)
{
if(!fd_map_server[i].erased && FD_ISSET(fd_map_server[i].fd, read_fds))
{
int newclient_fd;
struct sockaddr_in peer_address;
socklen_t addrlen = sizeof(peer_address);
if ((newclient_fd = accept(fd_map_server[i].fd, (struct sockaddr *)&peer_address, &addrlen)) == -1)
error("Event handler: accept error (server mode)!");
else
{
map_put_item(newclient_fd);
setNonBlocking(newclient_fd);
FD_SET(newclient_fd, &readfds);
incoming_message(SCTPasp__Types::ASP__SCTP__Connected(
INTEGER(newclient_fd),
CHARSTRING(inet_ntoa(fd_map_server[i].local_IP_address)),
INTEGER(fd_map_server[i].local_port),
CHARSTRING(inet_ntoa(peer_address.sin_addr)),
INTEGER(ntohs(peer_address.sin_port))));
Install_Handler(&readfds, NULL, NULL, 0.0);
}
}
}
}
else
{
if(server_mode && FD_ISSET(fd, read_fds))
{
int newclient_fd;
struct sockaddr_in peer_address;
socklen_t addrlen = sizeof(peer_address);
if ((newclient_fd = accept(fd, (struct sockaddr *)&peer_address, &addrlen)) == -1)
error("Event handler: accept error (server mode)!");
else
{
map_put_item(newclient_fd);
setNonBlocking(newclient_fd);
FD_SET(newclient_fd, &readfds);
Install_Handler(&readfds, NULL, NULL, 0.0);
}
}
}
// Receiving data
for(int i=0;i<list_len;i++)
{
if(!simple_mode && !fd_map[i].erased && fd_map[i].einprogress &&
FD_ISSET(fd_map[i].fd, write_fds))
{
if (connect(fd_map[i].fd, (struct sockaddr *)&fd_map[i].sin,
sizeof (fd_map[i].sin)) == -1)
{
if(errno == EISCONN)
{
SCTPasp__Types::ASP__SCTP__RESULT asp_sctp_result;
asp_sctp_result.client__id() = fd_map[i].fd;
asp_sctp_result.error__status() = FALSE;
asp_sctp_result.error__message() = OMIT_VALUE;
incoming_message(asp_sctp_result);
fd_map[i].einprogress = FALSE;
FD_CLR(fd_map[i].fd, &writefds);
FD_SET(fd_map[i].fd, &readfds);
Install_Handler(&readfds, &writefds, NULL, 0.0);
errno = 0;
log("Connection successfully established to (%s):(%d)",
inet_ntoa(peer_IP_address), peer_port);
}
else
{
close(fd_map[i].fd);
fd = -1;
TTCN_warning("Connect error!");
SCTPasp__Types::ASP__SCTP__RESULT asp_sctp_result;
asp_sctp_result.client__id() = fd_map[i].fd;
asp_sctp_result.error__status() = TRUE;
asp_sctp_result.error__message() = strerror(errno);
incoming_message(asp_sctp_result);
FD_CLR(fd_map[i].fd, &writefds);
map_delete_item_fd(fd_map[i].fd);
Install_Handler(&readfds, &writefds, NULL, 0.0);
errno = 0;
log("Connection establishment to (%s):(%d) failed !",
inet_ntoa(peer_IP_address), peer_port);
}
}
}
if(!fd_map[i].erased && FD_ISSET(fd_map[i].fd, read_fds))
{
log("Calling Event_Handler.");
receiving_fd = fd_map[i].fd;
struct cmsghdr *cmsg;
struct sctp_sndrcvinfo *sri;
char cbuf[sizeof (*cmsg) + sizeof (*sri)];
struct msghdr msg;
struct iovec iov;
size_t cmsglen = sizeof (*cmsg) + sizeof (*sri);
if ( !fd_map[i].processing_message )
{
fd_map[i].buf = Malloc(BUFLEN);
fd_map[i].buflen = BUFLEN;
iov.iov_base = fd_map[i].buf;
iov.iov_len = fd_map[i].buflen;
}
else
{
// Set the next read offset
log("Event_Handler: setting the next read offset.");
iov.iov_base = (char *)fd_map[i].buf + fd_map[i].nr;
iov.iov_len = fd_map[i].buflen - fd_map[i].nr;
}
// Set up the msghdr structure for receiving
memset(&msg, 0, sizeof (msg));
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_control = cbuf;
msg.msg_controllen = cmsglen;
memset(cbuf, 0, sizeof (*cmsg) + sizeof (*sri));
cmsg = (struct cmsghdr *)cbuf;
sri = (struct sctp_sndrcvinfo *)(cmsg + 1);
return_value_t value = getmsg(receiving_fd, &msg);
switch(value)
{
case WHOLE_MESSAGE_RECEIVED:
fd_map[i].processing_message = FALSE;
// Intercept notifications here
if (msg.msg_flags & MSG_NOTIFICATION)
{
log("Calling event_handler for an incoming notification.");
handle_event(fd_map[i].buf);
}
else
{
log("Incoming data.");
unsigned int ui = ntohl(sri->sinfo_ppid);
INTEGER i_ppid;
if (ui <= (unsigned long)INT_MAX)
i_ppid = ui;
else {
char sbuf[16];
sprintf(sbuf, "%u", ui);
i_ppid = INTEGER(sbuf);
}
incoming_message(SCTPasp__Types::ASP__SCTP(
INTEGER(receiving_fd),
INTEGER(sri->sinfo_stream),
i_ppid,
OCTETSTRING(fd_map[i].nr,(const unsigned char *)fd_map[i].buf)));
}
Free(fd_map[i].buf);
fd_map[i].buf = NULL;
break;
case PARTIAL_RECEIVE:
fd_map[i].processing_message = TRUE;
break;
case EOF_OR_ERROR:
if (!server_mode) fd = -1; // setting closed socket to -1 in client mode (and reconnect mode)
FD_CLR(receiving_fd, &readfds);
Install_Handler(&readfds, NULL, NULL, 0.0);
map_delete_item(i);
if (events.sctp_association_event) incoming_message(SCTPasp__Types::ASP__SCTP__ASSOC__CHANGE(
INTEGER(receiving_fd),
SCTPasp__Types::SAC__STATE(SCTP_COMM_LOST)));
log("getmsg() returned with NULL. Socket is closed.");
if (reconnect) forced_reconnect(reconnect_max_attempts);
break;
}//endswitch
}// endif
}// endfor
}
void SCTPasp__PT_PROVIDER::user_map(const char *system_port)
{
log("Calling user_map(%s).",system_port);
if(simple_mode)
{
if ( server_mode && reconnect )
{
error("user_map(): server mode and reconnect mode are mutually exclusive!");
}
if ( server_mode && !local_port_is_present )
{
error("user_map(): in server mode local_port must be defined!");
}
// Server mode: turns on listening
if (server_mode)
{
log("Running in SERVER_MODE.");
create_socket();
if (listen(fd, server_backlog) == -1) error("Listen error!");
log("Listening @ (%s):(%d)", inet_ntoa(local_IP_address), local_port);
FD_SET(fd, &readfds);
Install_Handler(&readfds, NULL, NULL, 0.0);
} else if (reconnect) {
log("Running in RECONNECT MODE.");
forced_reconnect(reconnect_max_attempts+1);
} else {
log("Running in CLIENT MODE.");
}
}
else
{
log("Running in NORMAL MODE.");
}
log("Leaving user_map().");
}
void SCTPasp__PT_PROVIDER::user_unmap(const char *system_port)
{
log("Calling user_unmap(%s).",system_port);
Uninstall_Handler();
FD_ZERO(&readfds);
FD_ZERO(&writefds);
if(!simple_mode)
{
for(int i=0;i<list_len;i++) map_delete_item(i);
for(int i=0;i<list_len_server;i++) map_delete_item_server(i);
}
else
{
for(int i=0;i<list_len;i++) map_delete_item(i);
if(server_mode) close(fd);
}
log("Leaving user_unmap().");
}
void SCTPasp__PT_PROVIDER::user_start()
{
log("Calling user_start().");
log("Leaving user_start().");
}
void SCTPasp__PT_PROVIDER::user_stop()
{
log("Calling user_stop().");
log("Leaving user_stop().");
}
void SCTPasp__PT_PROVIDER::outgoing_send(const SCTPasp__Types::ASP__SCTP__Connect& send_par)
{
log("Calling outgoing_send (ASP_SCTP_CONNECT).");
if(simple_mode)
{
if (server_mode)
error("ASP_SCTP_CONNECT is not allowed in server mode!");
}
if( !peer_IP_address_is_present && !send_par.peer__hostname().ispresent() )
error("Peer IP address should be defined!");
if( !peer_port_is_present && !send_par.peer__portnumber().ispresent() )
error("Peer port should be defined!");
if(!simple_mode)
{
boolean temp_bool = local_port_is_present;
local_port_is_present = FALSE;
create_socket(); // creating client socket
local_port_is_present = temp_bool;
}
else
{
if (fd == -1) create_socket(); // checking if there is an open socket
else if(FD_ISSET(fd, &readfds)) // Active connection
error("ASP_SCTP_CONNECT called during active connection.");
}
struct sockaddr_in sin;
if(send_par.peer__hostname().ispresent())
{
peer_IP_address = get_in_addr((const char *)(const CHARSTRING&)send_par.peer__hostname());
}
if(send_par.peer__portnumber().ispresent())
peer_port = (int) (const INTEGER&) send_par.peer__portnumber();
sin.sin_family = AF_INET;
sin.sin_port = htons(peer_port);
sin.sin_addr.s_addr = peer_IP_address.s_addr;
log("Connecting to (%s):(%d)", inet_ntoa(peer_IP_address), peer_port);
// setting non-blocking mode
if(!simple_mode) setNonBlocking(fd);
if (connect(fd, (struct sockaddr *)&sin, sizeof (sin)) == -1)
{
if(errno == EINPROGRESS && !simple_mode)
{
map_put_item(fd);
int i = map_get_item(fd);
fd_map[i].einprogress = TRUE;
fd_map[i].sin.sin_family = AF_INET;
fd_map[i].sin.sin_port = htons(peer_port);;
fd_map[i].sin.sin_addr.s_addr= peer_IP_address.s_addr;
FD_SET(fd, &writefds);
Install_Handler(&readfds, &writefds, NULL, 0.0);
log("Connection in progress to (%s):(%d)", inet_ntoa(peer_IP_address),
peer_port);
}
else
{
close(fd);
fd = -1;
TTCN_warning("Connect error!");
SCTPasp__Types::ASP__SCTP__RESULT asp_sctp_result;
asp_sctp_result.client__id() = OMIT_VALUE;
asp_sctp_result.error__status() = TRUE;
asp_sctp_result.error__message() = strerror(errno);
incoming_message(asp_sctp_result);
}
errno = 0;
}
else
{
SCTPasp__Types::ASP__SCTP__RESULT asp_sctp_result;
asp_sctp_result.client__id() = fd;
asp_sctp_result.error__status() = FALSE;
asp_sctp_result.error__message() = OMIT_VALUE;
incoming_message(asp_sctp_result);
map_put_item(fd);
if(simple_mode) setNonBlocking(fd);
FD_SET(fd, &readfds);
Install_Handler(&readfds, NULL, NULL, 0.0);
log("Connection successfully established to (%s):(%d)", inet_ntoa(peer_IP_address), peer_port);
}
log("Leaving outgoing_send (ASP_SCTP_CONNECT).");
}
void SCTPasp__PT_PROVIDER::outgoing_send(const SCTPasp__Types::ASP__SCTP__ConnectFrom& send_par)
{
log("Calling outgoing_send (ASP_SCTP_CONNECTFROM).");
if(!simple_mode)
{
if( !peer_IP_address_is_present && !send_par.peer__hostname().ispresent() )
error("Peer IP address should be defined!");
if( !peer_port_is_present && !send_par.peer__portnumber().ispresent() )
error("Peer port should be defined!");
// work around for create_socket()
unsigned short temp = local_port; // saving global variables
boolean temp_bool = local_port_is_present;
struct in_addr temp_local_IP_address = local_IP_address;
local_port = (int) (const INTEGER&) send_par.local__portnumber();
local_port_is_present = TRUE;
if(send_par.local__hostname().ispresent())
{
local_IP_address = get_in_addr((const char *)(const CHARSTRING&)send_par.local__hostname());
}
create_socket(); // creating client socket
struct sockaddr_in sin;
if(send_par.peer__hostname().ispresent())
{
peer_IP_address = get_in_addr((const char *)(const CHARSTRING&)send_par.peer__hostname());
}
if(send_par.peer__portnumber().ispresent())
peer_port = (int) (const INTEGER&) send_par.peer__portnumber();
sin.sin_family = AF_INET;
sin.sin_port = htons(peer_port);
sin.sin_addr.s_addr = peer_IP_address.s_addr;
log("Connecting to (%s):(%d)", inet_ntoa(peer_IP_address), peer_port);
// setting non-blocking mode
setNonBlocking(fd);
if (connect(fd, (struct sockaddr *)&sin, sizeof (sin)) == -1)
{
if(errno == EINPROGRESS)
{
map_put_item(fd);
int i = map_get_item(fd);
fd_map[i].einprogress = TRUE;
fd_map[i].sin.sin_family = AF_INET;
fd_map[i].sin.sin_port = htons(peer_port);;
fd_map[i].sin.sin_addr.s_addr= peer_IP_address.s_addr;
FD_SET(fd, &writefds);
Install_Handler(&readfds, &writefds, NULL, 0.0);
log("Connection in progress to (%s):(%d)", inet_ntoa(peer_IP_address),
peer_port);
}
else
{
close(fd);
fd = -1;
TTCN_warning("Connect error!");
SCTPasp__Types::ASP__SCTP__RESULT asp_sctp_result;
asp_sctp_result.client__id() = OMIT_VALUE;
asp_sctp_result.error__status() = TRUE;
asp_sctp_result.error__message() = strerror(errno);
incoming_message(asp_sctp_result);
}
errno = 0;
}
else
{
SCTPasp__Types::ASP__SCTP__RESULT asp_sctp_result;
asp_sctp_result.client__id() = fd;
asp_sctp_result.error__status() = FALSE;
asp_sctp_result.error__message() = OMIT_VALUE;
incoming_message(asp_sctp_result);
map_put_item(fd);
FD_SET(fd, &readfds);
Install_Handler(&readfds, NULL, NULL, 0.0);
log("Connection successfully established to (%s):(%d)", inet_ntoa(peer_IP_address), peer_port);
}
local_port = temp; // restoring global variables
local_port_is_present = temp_bool;
local_IP_address = temp_local_IP_address;
}
log("Leaving outgoing_send (ASP_SCTP_CONNECTFROM).");
}
void SCTPasp__PT_PROVIDER::outgoing_send(const SCTPasp__Types::ASP__SCTP__Listen& send_par)
{
log("Calling outgoing_send (ASP_SCTP_LISTEN).");
if(!simple_mode)
{
// work around for create_socket()
unsigned short temp = local_port; // saving global variables
boolean temp_bool = local_port_is_present;
struct in_addr temp_local_IP_address = local_IP_address;
local_port = (int) (const INTEGER&) send_par.local__portnumber();
local_port_is_present = TRUE;
if(send_par.local__hostname().ispresent())
{
local_IP_address = get_in_addr((const char *)(const CHARSTRING&)send_par.local__hostname());
}
create_socket();
if (listen(fd, server_backlog) == -1) error("Listen error!");
map_put_item_server(fd, local_IP_address, local_port);
log("Listening @ (%s):(%d)", inet_ntoa(local_IP_address), local_port);
local_port = temp; // restoring global variables
local_port_is_present = temp_bool;
local_IP_address = temp_local_IP_address;
FD_SET(fd, &readfds);
Install_Handler(&readfds, NULL, NULL, 0.0);
#ifdef SCTP_REPORT_LISTEN_RESULT
SCTPasp__Types::ASP__SCTP__RESULT asp_sctp_result;
asp_sctp_result.client__id() = fd;
asp_sctp_result.error__status() = FALSE;
asp_sctp_result.error__message() = OMIT_VALUE;
incoming_message(asp_sctp_result);
#endif
}
log("Leaving outgoing_send (ASP_SCTP_LISTEN).");
}
void SCTPasp__PT_PROVIDER::outgoing_send(const SCTPasp__Types::ASP__SCTP__SetSocketOptions& send_par)
{
log("Calling outgoing_send (ASP_SCTP_SETSOCKETOPTIONS).");
if(simple_mode)
{
if (fd == -1) create_socket(); // checking if there is an open socket
}
switch (send_par.get_selection())
{
case SCTPasp__Types::ASP__SCTP__SetSocketOptions::ALT_Sctp__init:
{
(void) memset(&initmsg, 0, sizeof(struct sctp_initmsg));
const SCTPasp__Types::SCTP__INIT& init = send_par.Sctp__init();
initmsg.sinit_num_ostreams = (int) init.sinit__num__ostreams();
initmsg.sinit_max_instreams = (int) init.sinit__max__instreams();
initmsg.sinit_max_attempts = (int) init.sinit__max__attempts();
initmsg.sinit_max_init_timeo = (int) init.sinit__max__init__timeo();
log("Setting SCTP socket options (initmsg).");
if (setsockopt(fd, IPPROTO_SCTP, SCTP_INITMSG, &initmsg,
sizeof(struct sctp_initmsg)) < 0)
{
TTCN_warning("Setsockopt error!");
SCTPasp__Types::ASP__SCTP__RESULT asp_sctp_result;
asp_sctp_result.client__id() = fd;
asp_sctp_result.error__status() = TRUE;
asp_sctp_result.error__message() = strerror(errno);
incoming_message(asp_sctp_result);
errno = 0;
}
else
{
SCTPasp__Types::ASP__SCTP__RESULT asp_sctp_result;
asp_sctp_result.client__id() = fd;
asp_sctp_result.error__status() = FALSE;
asp_sctp_result.error__message() = OMIT_VALUE;
incoming_message(asp_sctp_result);
}
break;
}
case SCTPasp__Types::ASP__SCTP__SetSocketOptions::ALT_Sctp__events:
{
const SCTPasp__Types::SCTP__EVENTS& event = send_par.Sctp__events();
events.sctp_data_io_event = (boolean) event.sctp__data__io__event();
events.sctp_association_event = (boolean) event.sctp__association__event();
events.sctp_address_event = (boolean) event.sctp__address__event();
events.sctp_send_failure_event = (boolean) event.sctp__send__failure__event();
events.sctp_peer_error_event = (boolean) event.sctp__peer__error__event();
events.sctp_shutdown_event = (boolean) event.sctp__shutdown__event();
events.sctp_partial_delivery_event = (boolean) event.sctp__partial__delivery__event();
#if defined(LKSCTP_1_0_7) || defined(LKSCTP_1_0_9)
events.sctp_adaptation_layer_event = (boolean) event.sctp__adaption__layer__event();
#else
events.sctp_adaption_layer_event = (boolean) event.sctp__adaption__layer__event();
#endif
break;
}
case SCTPasp__Types::ASP__SCTP__SetSocketOptions::ALT_So__linger:
{
struct linger so_linger;
(void) memset(&so_linger, 0, sizeof (so_linger));
const SCTPasp__Types::SO__LINGER& so = send_par.So__linger();
so_linger.l_onoff = (int) so.l__onoff();
so_linger.l_linger = (int) so.l__linger();
// Setting a socket level option
log("Setting SCTP socket options (so_linger).");
if (setsockopt(fd, SOL_SOCKET, SCTP_EVENTS, &so_linger, sizeof (so_linger)) < 0)
{
TTCN_warning("Setsockopt error!");
SCTPasp__Types::ASP__SCTP__RESULT asp_sctp_result;
asp_sctp_result.client__id() = fd;
asp_sctp_result.error__status() = TRUE;
asp_sctp_result.error__message() = strerror(errno);
incoming_message(asp_sctp_result);
errno = 0;
}
else
{
SCTPasp__Types::ASP__SCTP__RESULT asp_sctp_result;
asp_sctp_result.client__id() = fd;
asp_sctp_result.error__status() = FALSE;
asp_sctp_result.error__message() = OMIT_VALUE;
incoming_message(asp_sctp_result);
}
break;
}
case SCTPasp__Types::ASP__SCTP__SetSocketOptions::ALT_Sctp__rtoinfo:
{
struct sctp_rtoinfo sctp_rtoinfo;
(void) memset(&sctp_rtoinfo, 0, sizeof (sctp_rtoinfo));
const SCTPasp__Types::SCTP__RTOINFO& rto = send_par.Sctp__rtoinfo();
int local_fd = (int) rto.client__id();
sctp_rtoinfo.srto_initial = (int) rto.srto__initial();
sctp_rtoinfo.srto_max = (int) rto.srto__max();
sctp_rtoinfo.srto_min = (int) rto.srto__min();
// Setting a SCTP level socket option
log("Setting SCTP socket options (sctp_rtoinfo).");
if (setsockopt(local_fd, IPPROTO_SCTP, SCTP_RTOINFO, &sctp_rtoinfo,
sizeof (sctp_rtoinfo)) < 0)
{
TTCN_warning("Setsockopt error!");
SCTPasp__Types::ASP__SCTP__RESULT asp_sctp_result;
asp_sctp_result.client__id() = local_fd;
asp_sctp_result.error__status() = TRUE;
asp_sctp_result.error__message() = strerror(errno);
incoming_message(asp_sctp_result);
errno = 0;
}
else
{
SCTPasp__Types::ASP__SCTP__RESULT asp_sctp_result;
asp_sctp_result.client__id() = local_fd;
asp_sctp_result.error__status() = FALSE;
asp_sctp_result.error__message() = OMIT_VALUE;
incoming_message(asp_sctp_result);
}
break;
}
default:
error("Setsocketoptions error: UNBOUND value!");
break;
}
log("Leaving outgoing_send (ASP_SCTP_SETSOCKETOPTIONS).");
}
void SCTPasp__PT_PROVIDER::outgoing_send(const SCTPasp__Types::ASP__SCTP__Close& send_par)
{
log("Calling outgoing_send (ASP_SCTP_CLOSE).");
if(!simple_mode)
{
if(send_par.client__id().ispresent())
{
int local_fd = (int) (const INTEGER&) send_par.client__id();
log("NORMAL MODE: closing client/server socket (fd = %d).", local_fd);
map_delete_item_fd(local_fd);
map_delete_item_fd_server(local_fd);
FD_CLR(local_fd, &readfds);
Install_Handler(&readfds, &writefds, NULL, 0.0);
}
else
{ // if OMIT is given then all sockets will be closed
log("NORMAL MODE: closing all sockets.");
for(int i=0;i<list_len;i++) map_delete_item(i);
for(int i=0;i<list_len_server;i++) map_delete_item_server(i);
FD_ZERO(&readfds);
FD_ZERO(&writefds);
Install_Handler(&readfds, &writefds, NULL, 0.0); // ???
}
}
else
{
if (server_mode)
{ // closing the given connection
if(send_par.client__id().ispresent())
{
int local_fd = (int) (const INTEGER&) send_par.client__id();
log("SERVER MODE: closing client socket (fd = %d).", local_fd);
map_delete_item_fd(local_fd);
FD_CLR(local_fd, &readfds);
Install_Handler(&readfds, NULL, NULL, 0.0);
}
else
{ // if OMIT is given in server mode then all clients will be closed
log("SERVER MODE: closing all client sockets.");
for(int i=0;i<list_len;i++) map_delete_item(i);