void send_close(SOCKET *sock)
{
if (sock->error == 1234) diag(COMPONENT,DIAG_FATAL,"BUG! BUG! BUG!");
send_kernel(sock->id,kptr_null,as_close,sock->error,NULL,NULL,NULL,NULL,
NULL);
sock->error = 1234;
}
void on_T361(void *user)
{
SOCKET *sock = user;
diag(COMPONENT,DIAG_DEBUG,"T361 on %s",kptr_print(&sock->id));
if (sock->state != ss_connected) complain(sock,"T361");
sock->qos = sock->new_qos;
send_kernel(sock->id,kptr_null,as_modify,ATM_MF_SET,NULL,NULL,NULL,NULL,
&sock->qos);
sock->conn_timer = NULL;
new_state(sock,ss_mod_fin_ack);
}
static void setup_call(SIG_ENTITY *sig,unsigned long call_ref)
{
SOCKET *sock,*this,**walk;
struct sockaddr_atmsvc in_addr;
struct atm_sap in_sap;
struct atm_qos in_qos;
unsigned int problem;
int i;
problem = sap_decode(&in_dsc,&in_addr,&in_sap,&in_qos,sig->uni);
if (problem) {
send_release_complete(sig,call_ref,IE_PB_CAUSE(problem),
IE_PB_IE(problem));
return;
}
if (!atmsvc_addr_in_use(in_addr)) {
send_release_complete(sig,call_ref,ATM_CV_UNALLOC);
return;
}
if (!allow(&in_addr,ACL_IN)) {
send_release_complete(sig,call_ref,ATM_CV_REJ_CLIR);
return;
}
this = new_sock(kptr_null);
this->sig = sig;
sock = lookup_sap(&in_addr,&in_sap,&in_qos,&this->local,&this->sap,
&this->qos,0);
if (!sock) {
free_sock(this);
send_release_complete(sig,call_ref,ATM_CV_INCOMP_DEST);
return;
}
this->state = sig->mode == sm_net ? ss_proceeding : ss_indicated;
this->call_state = cs_in_proc;
this->call_ref = call_ref;
if (q_present(&in_dsc,QF_ep_ref))
this->ep_ref = cvt_ep_ref(sig,q_fetch(&in_dsc,QF_ep_ref));
#ifdef CISCO
else
#endif
if (sig->mode == sm_net) {
int error;
error = send_call_proceeding(this);
if (error) {
free_sock(this);
send_release_complete(sig,call_ref,ATM_CV_NO_CI);
return;
}
}
/* if (sock->local) *this->local->sas_addr = sock->local->sas_addr; ??? */
diag(COMPONENT,DIAG_DEBUG,"AAL type %ld",q_fetch(&in_dsc,QF_aal_type));
if (sig->mode == sm_user) { /* already set by send_call_proceeding */
int vpci;
vpci = q_fetch(&in_dsc,QF_vpi);
this->pvc.sap_family = AF_ATMPVC;
this->pvc.sap_addr.itf = get_itf(sig,&vpci);
this->pvc.sap_addr.vpi = vpci;
this->pvc.sap_addr.vci = q_fetch(&in_dsc,QF_vci);
}
diag(COMPONENT,DIAG_DEBUG,"ITF.VPI.VCI: %d.%d.%d",this->pvc.sap_addr.itf,
this->pvc.sap_addr.vpi,this->pvc.sap_addr.vci);
if (q_present(&in_dsc,QF_cgpn)) { /* should handle E.164 too */
char buffer[MAX_ATM_ADDR_LEN+1];
int plan;
plan = q_fetch(&in_dsc,QF_cgpn_plan);
switch (plan) {
case ATM_NP_AEA:
i = q_read(&in_dsc,QF_cgpn,(void *) this->remote.sas_addr.prv,
ATM_ESA_LEN);
break;
case ATM_NP_E164:
i = q_read(&in_dsc,QF_cgpn,(void *) this->remote.sas_addr.pub,
ATM_E164_LEN);
break;
default:
diag(COMPONENT,DIAG_WARN,"Ignoring cgpn with unrecognized "
"numbering plan 0x%x\n",plan);
i = 0;
}
if (i) {
this->remote.sas_family = AF_ATMSVC;
if (atm2text(buffer,MAX_ATM_ADDR_LEN+1,
(struct sockaddr *) &this->remote,pretty) < 0)
strcpy(buffer,"<invalid address>");
diag(COMPONENT,DIAG_DEBUG,"Incoming call from %s",buffer);
}
}
send_kernel(kptr_null,sock->id,as_indicate,0,&this->pvc,&this->remote,
&in_addr,&this->sap,&this->qos);
for (walk = &sock->listen; *walk; walk = &(*walk)->listen);
*walk = this;
diag(COMPONENT,DIAG_DEBUG,"SE vpi.vci=%d.%d",this->pvc.sap_addr.vpi,
this->pvc.sap_addr.vci);
}
static void uni_call(SOCKET *sock,unsigned char mid)
{
char buffer[MAX_ATM_ADDR_LEN+1];
int error;
switch (mid) {
case ATM_MSG_STATUS: /* 5.5.6.12 */
{
CALL_STATE state;
/*
* NOTE: T322 isn't implemented yet, but when it is, make sure
* to only stop it on STATUS iff the cause is
* ATM_CV_RESP_STAT_ENQ. Supplementary services break if
* you stop on any STATUS.
*/
state = q_fetch(&in_dsc,QF_call_state);
if (state == cs_null) break; /* clear call */
if (sock->call_state == cs_rel_req || sock->call_state ==
cs_rel_ind) return;
if (state != sock->call_state)
diag(COMPONENT,DIAG_WARN,"STATUS %s received in state %s",
cs_name[state],cs_name[sock->call_state]);
}
return;
default:
;
}
switch (mid) {
case ATM_MSG_CALL_PROC: /* CONNECTING, WAIT_REL, REL_REQ */
if (sock->state == ss_wait_rel || sock->state == ss_rel_req) {
send_status(sock->sig,sock,0,ATM_CV_INCOMP_MSG,
ATM_MSG_CALL_PROC);
return;
}
if (sock->state != ss_connecting) break;
/* check for 2nd CALL_PROC @@@ */
STOP_TIMER(sock);
if (q_present(&in_dsc,QG_conn_id)) {
int vpci;
vpci = q_fetch(&in_dsc,QF_vpi);
sock->pvc.sap_family = AF_ATMPVC;
sock->pvc.sap_addr.itf = get_itf(sock->sig,&vpci);
sock->pvc.sap_addr.vpi = vpci;
sock->pvc.sap_addr.vci = q_fetch(&in_dsc,QF_vci);
diag(COMPONENT,DIAG_DEBUG,"ITF.VPI.VCI: %d.%d.%d",
sock->pvc.sap_addr.itf,sock->pvc.sap_addr.vpi,
sock->pvc.sap_addr.vci);
}
START_TIMER(sock,T310);
sock->call_state = cs_out_proc;
return;
case ATM_MSG_CONNECT: /* CONNECTING, REL_REQ */
if (sock->state == ss_rel_req) {
send_status(sock->sig,sock,0,ATM_CV_INCOMP_MSG,ATM_MSG_CONNECT);
return;
}
if (sock->state != ss_connecting) break;
STOP_TIMER(sock);
if (q_present(&in_dsc,QG_conn_id)) {
int vpci;
vpci = q_fetch(&in_dsc,QF_vpi);
sock->pvc.sap_family = AF_ATMPVC;
sock->pvc.sap_addr.itf = get_itf(sock->sig,&vpci);
sock->pvc.sap_addr.vpi = vpci;
sock->pvc.sap_addr.vci = q_fetch(&in_dsc,QF_vci);
diag(COMPONENT,DIAG_DEBUG,"ITF.VPI.VCI: %d/%d.%d",
sock->pvc.sap_addr.itf,sock->pvc.sap_addr.vpi,
sock->pvc.sap_addr.vci);
}
error = 0;
if (!sock->pvc.sap_addr.vpi && !sock->pvc.sap_addr.vci)
error = -EPROTO;
/* more problems */
if (error) {
set_error(sock,error);
send_release(sock,0); /* @@@ cause follows reason ??? */
START_TIMER(sock,T308_1);
new_state(sock,ss_rel_req);
return;
}
send_connect_ack(sock);
/* @@@ fill in sock->remote */
/* @@@ fill in traffic parameters */
send_kernel(sock->id,kptr_null,as_okay,0,&sock->pvc,NULL,
&sock->local,&sock->sap,&sock->qos);
new_state(sock,ss_connected);
#if defined(Q2963_1) || defined(DYNAMIC_UNI)
sock->owner = 1;
#endif
if (atm2text(buffer,MAX_ATM_ADDR_LEN+1,(struct sockaddr *)
&sock->remote,0) < 0) strcpy(buffer,"<invalid>");
diag(COMPONENT,DIAG_INFO,"Active open succeeded (CR 0x%06X, "
"ID %s, to %s)",sock->call_ref,kptr_print(&sock->id),buffer);
return;
case ATM_MSG_CONN_ACK: /* ACCEPTING, WAIT_REL, REL_REQ */
diag(COMPONENT,DIAG_DEBUG,"CA vpi.vci=%d.%d",
sock->pvc.sap_addr.vpi,sock->pvc.sap_addr.vci);
if (sock->state == ss_wait_rel || sock->state == ss_rel_req) {
send_status(sock->sig,sock,0,ATM_CV_INCOMP_MSG,
ATM_MSG_CONN_ACK);
return;
}
if (sock->state != ss_accepting) break;
STOP_TIMER(sock);
send_kernel(sock->id,kptr_null,as_okay,0,NULL,NULL,&sock->local,
&sock->sap,NULL);
new_state(sock,ss_connected);
#if defined(Q2963_1) || defined(DYNAMIC_UNI)
sock->owner = 0;
#endif
if (atm2text(buffer,MAX_ATM_ADDR_LEN+1, (struct sockaddr *)
&sock->remote,0) < 0) strcpy(buffer,"<invalid>");
diag(COMPONENT,DIAG_INFO,"Passive open succeeded (CR 0x%06X, "
"ID %s, from %s)",sock->call_ref,kptr_print(&sock->id),buffer);
return;
case ATM_MSG_RELEASE: /* all states */
{
unsigned char cause;
cause = q_fetch(&in_dsc,QF_cause);
diag(COMPONENT,DIAG_DEBUG,"Cause %d (%s)",cause,cause > 127 ?
"invalid cause" : cause_text[cause]);
}
switch (sock->state) {
case ss_connecting:
set_error(sock,-ECONNREFUSED);
/* fall through */
case ss_accepting:
set_error(sock,-ECONNRESET); /* ERESTARTSYS ? */
send_release_complete(sock->sig,sock->call_ref,0);
SEND_ERROR(sock->id,sock->error);
STOP_TIMER(sock);
free_sock(sock);
return;
case ss_rel_req:
send_close(sock);
/* fall through */
case ss_wait_rel:
STOP_TIMER(sock);
free_sock(sock);
return;
#if defined(Q2963_1) || defined(DYNAMIC_UNI)
case ss_mod_req:
#endif
STOP_TIMER(sock);
/* fall through */
#if defined(Q2963_1) || defined(DYNAMIC_UNI)
case ss_mod_lcl:
case ss_mod_rcv:
case ss_mod_fin_ok:
case ss_mod_fin_fail:
case ss_mod_fin_ack:
#endif
case ss_connected:
diag(COMPONENT,DIAG_INFO,"Passive close (CR 0x%06X)",
sock->call_ref);
#if defined(Q2963_1) || defined(DYNAMIC_UNI)
if (timer_handler(sock->conn_timer) == on_T361)
STOP_TIMER(sock);
#endif
send_close(sock);
new_state(sock,ss_rel_ind);
return;
case ss_indicated:
/* fall through */
case ss_proceeding:
send_release_complete(sock->sig,sock->call_ref,0);
new_state(sock,ss_zombie);
/* fall through */
case ss_rel_ind:
return;
default:
send_release_complete(sock->sig,sock->call_ref,0);
/* @@@ should be ATM_CV_INCOMP_MSG */
break;
}
break;
case ATM_MSG_RESTART:
set_error(sock,-ENETRESET);
/* fall through */
case ATM_MSG_STATUS: /* fall through when clearing */
case ATM_MSG_REL_COMP: /* basically any state (except LISTENING and
ZOMBIE) */
{
unsigned char cause;
if (mid != ATM_MSG_REL_COMP || !q_present(&in_dsc,QF_cause))
cause = 0;
else {
cause = q_fetch(&in_dsc,QF_cause);
diag(COMPONENT,DIAG_DEBUG,"Cause %d (%s)",cause,
cause > 127 ? "invalid cause" : cause_text[cause]);
}
switch (sock->state) {
case ss_connecting:
set_error(sock,cause == ATM_CV_UNALLOC ?
-EADDRNOTAVAIL : cause == ATM_CV_RES_UNAVAIL ||
#if defined(UNI31) || defined(UNI40) || defined(DYNAMIC_UNI)
cause == ATM_CV_UCR_UNAVAIL_NEW ||
#endif
cause == ATM_CV_NO_ROUTE_DEST ? -EHOSTUNREACH :
cause == ATM_CV_NUM_CHANGED ? -EREMCHG :
cause == ATM_CV_DEST_OOO ? -EHOSTDOWN :
-ECONNREFUSED);
/* fall through */
case ss_accepting:
set_error(sock,-ECONNRESET); /* ERESTARTSYS ? */
SEND_ERROR(sock->id,sock->error);
STOP_TIMER(sock);
free_sock(sock);
return;
case ss_rel_req:
send_close(sock);
/* fall through */
case ss_wait_rel:
STOP_TIMER(sock);
free_sock(sock);
return;
#if defined(Q2963_1) || defined(DYNAMIC_UNI)
case ss_mod_req:
#endif
STOP_TIMER(sock);
/* fall through */
#if defined(Q2963_1) || defined(DYNAMIC_UNI)
case ss_mod_lcl:
case ss_mod_rcv:
case ss_mod_fin_ok:
case ss_mod_fin_fail:
case ss_mod_fin_ack:
#endif
case ss_connected:
diag(COMPONENT,DIAG_INFO,"Passive close (CR 0x%06X)",
sock->call_ref);
#if defined(Q2963_1) || defined(DYNAMIC_UNI)
if (timer_handler(sock->conn_timer) == on_T361)
STOP_TIMER(sock);
#endif
send_close(sock);
/* fall through */
case ss_rel_ind:
new_state(sock,ss_wait_close);
return;
case ss_indicated:
/* fall through */
case ss_proceeding:
new_state(sock,ss_zombie);
return;
default:
break;
}
break; /* fail */
}
case ATM_MSG_ALERTING:
/*
* We basically ignore this junk message, except for the connection
* identifier it may carry.
*/
if (q_present(&in_dsc,QG_conn_id)) {
int vpci;
vpci = q_fetch(&in_dsc,QF_vpi);
sock->pvc.sap_family = AF_ATMPVC;
sock->pvc.sap_addr.itf = get_itf(sock->sig,&vpci);
sock->pvc.sap_addr.vpi = vpci;
sock->pvc.sap_addr.vci = q_fetch(&in_dsc,QF_vci);
diag(COMPONENT,DIAG_DEBUG,"ITF.VPI.VCI: %d.%d.%d",
sock->pvc.sap_addr.itf,sock->pvc.sap_addr.vpi,
sock->pvc.sap_addr.vci);
}
return;
case ATM_MSG_NOTIFY:
/* silently ignore this junk */
return;
#if defined(Q2963_1) || defined(DYNAMIC_UNI)
/*
* Buglet ahead: should actually test "call_state"
*/
case ATM_MSG_MODIFY_REQ:
if (!(sock->sig->uni & S_Q2963_1)) goto _default;
if (sock->state != ss_connected || sock->owner) break;
sock->new_qos = sock->qos;
if (q_present(&in_dsc,QF_fw_pcr_01))
sock->new_qos.rxtp.max_pcr = q_fetch(&in_dsc,QF_fw_pcr_01);
if (q_present(&in_dsc,QF_bw_pcr_01))
sock->new_qos.txtp.max_pcr = q_fetch(&in_dsc,QF_bw_pcr_01);
send_kernel(sock->id,kptr_null,as_modify,
ATM_MF_INC_RSV | ATM_MF_DEC_RSV | ATM_MF_DEC_SHP,
NULL,NULL,NULL,NULL,&sock->new_qos);
new_state(sock,ss_mod_rcv);
return;
case ATM_MSG_MODIFY_ACK:
if (!(sock->sig->uni & S_Q2963_1)) goto _default;
if (sock->state != ss_mod_req) break;
STOP_TIMER(sock);
sock->qos = sock->new_qos;
if (q_present(&in_dsc,QG_bbrt)) send_conn_avail(sock);
send_kernel(sock->id,kptr_null,as_modify,ATM_MF_SET,NULL,NULL,NULL,
NULL,&sock->qos);
new_state(sock,ss_mod_fin_ok);
return;
case ATM_MSG_MODIFY_REJ:
if (!(sock->sig->uni & S_Q2963_1)) goto _default;
if (sock->state != ss_mod_req) break;
STOP_TIMER(sock);
sock->error = -EAGAIN;
send_kernel(sock->id,kptr_null,as_modify,ATM_MF_SET,NULL,NULL,NULL,
NULL,&sock->qos);
new_state(sock,ss_mod_fin_fail);
return;
case ATM_MSG_CONN_AVAIL:
if (!(sock->sig->uni & S_Q2963_1)) goto _default;
if (sock->state != ss_connected || sock->owner) break;
STOP_TIMER(sock);
send_kernel(sock->id,kptr_null,as_modify,ATM_MF_SET,NULL,NULL,NULL,
NULL,&sock->qos);
new_state(sock,ss_mod_fin_ack);
return;
_default: /* jump here if we don't want to understand a message */
#endif
default:
diag(COMPONENT,DIAG_WARN,"Bad signaling message %d",mid);
send_status(sock->sig,sock,0,ATM_CV_UNKNOWN_MSG_TYPE,mid);
return;
}
diag(COMPONENT,DIAG_WARN,
"Signaling message %s is incompatible with state %s/%s (%d?%d)",
mid2name(mid),state_name[sock->state],cs_name[sock->call_state],
(int) sock->state,(int) sock->call_state);
send_status(sock->sig,sock,0,ATM_CV_INCOMP_MSG,mid);
}
