static WTPInitMachine *init_machine_create(WAPAddrTuple *tuple, unsigned short
tid, int tidnew)
{
WTPInitMachine *init_machine;
init_machine = gw_malloc(sizeof(WTPInitMachine));
#define ENUM(name) init_machine->name = INITIATOR_NULL_STATE;
#define INTEGER(name) init_machine->name = 0;
#define EVENT(name) init_machine->name = NULL;
#define TIMER(name) init_machine->name = gwtimer_create(queue);
#define ADDRTUPLE(name) init_machine->name = NULL;
#define MACHINE(field) field
#include "wtp_init_machine.def"
gwlist_append(init_machines, init_machine);
init_machine->mid = counter_increase(init_machine_id_counter);
init_machine->addr_tuple = wap_addr_tuple_duplicate(tuple);
init_machine->tid = tid;
init_machine->tidnew = tidnew;
debug("wap.wtp", 0, "WTP: Created WTPInitMachine %p (%ld)",
(void *) init_machine, init_machine->mid);
return init_machine;
}
static WTLSMachine *wtls_machine_create(WAPAddrTuple * tuple)
{
WTLSMachine *wtls_machine;
wtls_machine = gw_malloc(sizeof(WTLSMachine));
#define MACHINE(field) field
#define ENUM(name) wtls_machine->name = NULL_STATE;
#define ADDRTUPLE(name) wtls_machine->name = NULL;
#define INTEGER(name) wtls_machine->name = 0;
#define OCTSTR(name) wtls_machine->name = NULL;
#define PDULIST(name) wtls_machine->name = NULL;
#include "wtls_machine-decl.h"
gwlist_append(wtls_machines, wtls_machine);
wtls_machine->mid = counter_increase(wtls_machine_id_counter);
wtls_machine->addr_tuple = wap_addr_tuple_duplicate(tuple);
wtls_machine->server_seq_num = wtls_machine->client_seq_num = -1;
wtls_machine->last_refresh = -1;
wtls_machine->handshake_data = octstr_create("");
debug("wap.wtls", 0, "WTLS: Created WTLSMachine %ld (0x%p)",
wtls_machine->mid, (void *)wtls_machine);
return wtls_machine;
}
static WAPEvent *unpack_ack(WTP_PDU *pdu, WAPAddrTuple *addr_tuple)
{
WAPEvent *event;
WTP_TPI *tpi;
int i, num_tpis;
event = wap_event_create(RcvAck);
event->u.RcvAck.tid = pdu->u.Ack.tid;
event->u.RcvAck.tid_ok = pdu->u.Ack.tidverify;
event->u.RcvAck.rid = pdu->u.Ack.rid;
event->u.RcvAck.addr_tuple = wap_addr_tuple_duplicate(addr_tuple);
/* Set default to 0 because Ack on 1 piece message has no tpi */
event->u.RcvAck.psn = 0;
num_tpis = gwlist_len(pdu->options);
for (i = 0; i < num_tpis; i++) {
tpi = gwlist_get(pdu->options, i);
if (tpi->type == TPI_PSN) {
event->u.RcvAck.psn = octstr_get_bits(tpi->data,0,8);
break;
}
}
return event;
}
/*
* Adds an item to the tid cache, one item per every initiator. Initiator is
* identified by the address four-tuple, fetched from a wtp responder machine.
*/
static void add_tid(WTPRespMachine *resp_machine, long tid)
{
WTPCached_tid *new_item = NULL;
new_item = cache_item_create_empty();
new_item->addr_tuple = wap_addr_tuple_duplicate(resp_machine->addr_tuple);
new_item->tid = tid;
list_append(tid_cache, new_item);
}
static void fatalAlert(WAPEvent * event, int description)
{
WAPEvent *abort;
abort = wap_event_create(SEC_Terminate_Req);
abort->u.SEC_Terminate_Req.addr_tuple = wap_addr_tuple_duplicate
(event->u.T_Unitdata_Ind.addr_tuple);
abort->u.SEC_Terminate_Req.alert_level = fatal_alert;
abort->u.SEC_Terminate_Req.alert_desc = description;
wtls_dispatch_event(abort);
}
int wtls_get_address_tuple(long mid, WAPAddrTuple ** tuple)
{
WTLSMachine *sm;
sm = find_wtls_machine_using_mid(mid);
if (sm == NULL)
return -1;
*tuple = wap_addr_tuple_duplicate(sm->addr_tuple);
return 0;
}
static WAPEvent *unpack_abort(WTP_PDU *pdu, WAPAddrTuple *addr_tuple)
{
WAPEvent *event;
event = wap_event_create(RcvAbort);
event->u.RcvAbort.tid = pdu->u.Abort.tid;
event->u.RcvAbort.abort_type = pdu->u.Abort.abort_type;
event->u.RcvAbort.abort_reason = pdu->u.Abort.abort_reason;
event->u.RcvAbort.addr_tuple = wap_addr_tuple_duplicate(addr_tuple);
return event;
}
/*
* Creates TR-Invoke.cnf event
*/
static WAPEvent *create_tr_invoke_cnf(WTPInitMachine *init_machine)
{
WAPEvent *event;
gw_assert(init_machine != NULL);
event = wap_event_create(TR_Invoke_Cnf);
event->u.TR_Invoke_Cnf.handle = init_machine->mid;
event->u.TR_Invoke_Cnf.addr_tuple =
wap_addr_tuple_duplicate(init_machine->addr_tuple);
return event;
}
static void make_unit_push_request(WAPEvent *e)
{
WAPEvent *wsp_event;
List *push_headers;
Octstr *smsc_id;
Octstr *dlr_url;
Octstr *smsbox_id;
Octstr *push_body;
Octstr *service_name;
gw_assert(e->type == Po_Unit_Push_Req);
gw_assert(e->u.Po_Unit_Push_Req.addr_tuple);
gw_assert(e->u.Po_Unit_Push_Req.service_name);
smsc_id = octstr_duplicate(e->u.Po_Unit_Push_Req.smsc_id);
dlr_url = octstr_duplicate(e->u.Po_Unit_Push_Req.dlr_url);
smsbox_id = octstr_duplicate(e->u.Po_Unit_Push_Req.smsbox_id);
push_body = octstr_duplicate(e->u.Po_Unit_Push_Req.push_body);
service_name = octstr_duplicate(e->u.Po_Unit_Push_Req.service_name);
push_headers = add_push_flag(e);
wsp_event = wap_event_create(S_Unit_Push_Req);
wsp_event->u.S_Unit_Push_Req.addr_tuple =
wap_addr_tuple_duplicate(e->u.Po_Unit_Push_Req.addr_tuple);
wsp_event->u.S_Unit_Push_Req.push_id = e->u.Po_Unit_Push_Req.push_id;
wsp_event->u.S_Unit_Push_Req.push_headers = push_headers;
wsp_event->u.S_Unit_Push_Req.address_type =
e->u.Po_Unit_Push_Req.address_type;
if (smsc_id != NULL)
wsp_event->u.S_Unit_Push_Req.smsc_id = smsc_id;
else
wsp_event->u.S_Unit_Push_Req.smsc_id = NULL;
if (dlr_url != NULL)
wsp_event->u.S_Unit_Push_Req.dlr_url = dlr_url;
else
wsp_event->u.S_Unit_Push_Req.dlr_url = NULL;
wsp_event->u.S_Unit_Push_Req.dlr_mask = e->u.Po_Unit_Push_Req.dlr_mask;
if (smsbox_id != NULL)
wsp_event->u.S_Unit_Push_Req.smsbox_id = smsbox_id;
else
wsp_event->u.S_Unit_Push_Req.smsbox_id = NULL;
wsp_event->u.S_Unit_Push_Req.service_name = service_name;
if (push_body != NULL)
wsp_event->u.S_Unit_Push_Req.push_body = push_body;
else
wsp_event->u.S_Unit_Push_Req.push_body = NULL;
dispatch_to_wsp_unit(wsp_event);
debug("wap.push.ota", 0, "OTA: made connectionless session service"
" request");
}
static WAPEvent *unpack_negative_ack(WTP_PDU *pdu, WAPAddrTuple *addr_tuple)
{
WAPEvent *event;
event = wap_event_create(RcvNegativeAck);
event->u.RcvNegativeAck.tid = pdu->u.Negative_ack.tid;
event->u.RcvNegativeAck.rid = pdu->u.Negative_ack.rid;
event->u.RcvNegativeAck.nmissing = pdu->u.Negative_ack.nmissing;
event->u.RcvNegativeAck.missing = octstr_duplicate(pdu->u.Negative_ack.missing);
event->u.RcvNegativeAck.addr_tuple = wap_addr_tuple_duplicate(addr_tuple);
return event;
}
static WAPEvent *pack_error(WAPEvent *datagram)
{
WAPEvent *event;
gw_assert(datagram->type == T_DUnitdata_Ind);
event = wap_event_create(RcvErrorPDU);
event->u.RcvErrorPDU.tid = deduce_tid(datagram->u.T_DUnitdata_Ind.user_data);
event->u.RcvErrorPDU.addr_tuple =
wap_addr_tuple_duplicate(datagram->u.T_DUnitdata_Ind.addr_tuple);
return event;
}
/*
* Creates TR-Abort.ind event from an initiator state machine. In addtion, set
* the ir_flag on.
*/
static WAPEvent *create_tr_abort_ind(WTPInitMachine *sm, long abort_reason)
{
WAPEvent *event;
event = wap_event_create(TR_Abort_Ind);
event->u.TR_Abort_Ind.abort_code = abort_reason;
event->u.TR_Abort_Ind.addr_tuple =
wap_addr_tuple_duplicate(sm->addr_tuple);
event->u.TR_Abort_Ind.handle = sm->mid;
event->u.TR_Abort_Ind.ir_flag = INITIATOR_INDICATION;
return event;
}
static WAPEvent *unpack_result(WTP_PDU *pdu, WAPAddrTuple *addr_tuple)
{
WAPEvent *event;
event = wap_event_create(RcvResult);
event->u.RcvResult.user_data =
octstr_duplicate(pdu->u.Result.user_data);
event->u.RcvResult.tid = pdu->u.Result.tid;
event->u.RcvResult.rid = pdu->u.Result.rid;
event->u.RcvResult.gtr = pdu->u.Result.gtr;
event->u.RcvResult.ttr = pdu->u.Result.ttr;
event->u.RcvResult.addr_tuple = wap_addr_tuple_duplicate(addr_tuple);
return event;
}
static void make_session_request(WAPEvent *e)
{
WAPEvent *wsp_event;
List *appid_headers, *push_headers;
gw_assert(e->type == Pom_SessionRequest_Req);
push_headers = e->u.Pom_SessionRequest_Req.push_headers;
check_session_request_headers(push_headers);
wsp_event = wap_event_create(S_Unit_Push_Req);
wsp_event->u.S_Unit_Push_Req.address_type =
e->u.Pom_SessionRequest_Req.address_type;
if (e->u.Pom_SessionRequest_Req.smsc_id != NULL)
wsp_event->u.S_Unit_Push_Req.smsc_id =
octstr_duplicate(e->u.Pom_SessionRequest_Req.smsc_id);
else
wsp_event->u.S_Unit_Push_Req.smsc_id = NULL;
if (e->u.Pom_SessionRequest_Req.dlr_url != NULL)
wsp_event->u.S_Unit_Push_Req.dlr_url =
octstr_duplicate(e->u.Pom_SessionRequest_Req.dlr_url);
else
wsp_event->u.S_Unit_Push_Req.dlr_url = NULL;
wsp_event->u.S_Unit_Push_Req.dlr_mask = e->u.Pom_SessionRequest_Req.dlr_mask;
if (e->u.Pom_SessionRequest_Req.smsbox_id != NULL)
wsp_event->u.S_Unit_Push_Req.smsbox_id =
octstr_duplicate(e->u.Pom_SessionRequest_Req.smsbox_id);
else
wsp_event->u.S_Unit_Push_Req.smsbox_id = NULL;
wsp_event->u.S_Unit_Push_Req.service_name =
octstr_duplicate(e->u.Pom_SessionRequest_Req.service_name);
wsp_event->u.S_Unit_Push_Req.push_id =
e->u.Pom_SessionRequest_Req.push_id;
wsp_event->u.S_Unit_Push_Req.addr_tuple =
wap_addr_tuple_duplicate(e->u.Pom_SessionRequest_Req.addr_tuple);
wsp_event->u.S_Unit_Push_Req.push_headers =
http_header_duplicate(push_headers);
appid_headers = http_header_find_all(push_headers, "X-WAP-Application-Id");
wsp_event->u.S_Unit_Push_Req.push_body = pack_sia(appid_headers);
debug("wap.push.ota", 0, "OTA: making a connectionless session request for"
" creating a session");
dispatch_to_wsp_unit(wsp_event);
}
static WAPEvent *unpack_segmented_invoke(WTP_PDU *pdu, WAPAddrTuple *addr_tuple)
{
WAPEvent *event;
event = wap_event_create(RcvSegInvoke);
event->u.RcvSegInvoke.user_data =
octstr_duplicate(pdu->u.Segmented_invoke.user_data);
event->u.RcvSegInvoke.tid = pdu->u.Segmented_invoke.tid;
event->u.RcvSegInvoke.rid = pdu->u.Segmented_invoke.rid;
event->u.RcvSegInvoke.no_cache_supported = 0;
event->u.RcvSegInvoke.gtr = pdu->u.Segmented_invoke.gtr;
event->u.RcvSegInvoke.ttr = pdu->u.Segmented_invoke.ttr;
event->u.RcvSegInvoke.psn = pdu->u.Segmented_invoke.psn;
event->u.RcvSegInvoke.addr_tuple = wap_addr_tuple_duplicate(addr_tuple);
return event;
}
static WAPEvent *unpack_invoke(WTP_PDU *pdu, WAPAddrTuple *addr_tuple)
{
WAPEvent *event;
event = wap_event_create(RcvInvoke);
event->u.RcvInvoke.user_data =
octstr_duplicate(pdu->u.Invoke.user_data);
event->u.RcvInvoke.tcl = pdu->u.Invoke.class;
event->u.RcvInvoke.tid = pdu->u.Invoke.tid;
event->u.RcvInvoke.tid_new = pdu->u.Invoke.tidnew;
event->u.RcvInvoke.rid = pdu->u.Invoke.rid;
event->u.RcvInvoke.up_flag = pdu->u.Invoke.uack;
event->u.RcvInvoke.no_cache_supported = 0;
event->u.RcvInvoke.version = pdu->u.Invoke.version;
event->u.RcvInvoke.gtr = pdu->u.Invoke.gtr;
event->u.RcvInvoke.ttr = pdu->u.Invoke.ttr;
event->u.RcvInvoke.addr_tuple = wap_addr_tuple_duplicate(addr_tuple);
return event;
}
static WSPMethodMachine *method_machine_create(WSPMachine *sm,
long wtp_handle) {
WSPMethodMachine *msm;
msm = gw_malloc(sizeof(*msm));
#define INTEGER(name) msm->name = 0;
#define ADDRTUPLE(name) msm->name = NULL;
#define EVENT(name) msm->name = NULL;
#define MACHINE(fields) fields
#include "wsp_server_method_machine.def"
msm->transaction_id = wtp_handle;
msm->state = NULL_METHOD;
msm->addr_tuple = wap_addr_tuple_duplicate(sm->addr_tuple);
msm->session_id = sm->session_id;
gwlist_append(sm->methodmachines, msm);
return msm;
}
static WSPPushMachine *push_machine_create(WSPMachine *sm,
long pid)
{
WSPPushMachine *m;
m = gw_malloc(sizeof(WSPPushMachine));
#define INTEGER(name) m->name = 0;
#define ADDRTUPLE(name) m->name = NULL;
#define HTTPHEADER(name) m->name = http_create_empty_headers();
#define MACHINE(fields) fields
#include "wsp_server_push_machine.def"
m->server_push_id = pid;
m->transaction_id = pid;
m->state = SERVER_PUSH_NULL_STATE;
m->addr_tuple = wap_addr_tuple_duplicate(sm->addr_tuple);
m->session_id = sm->session_id;
gwlist_append(sm->pushmachines, m);
return m;
}
static WSPMachine *find_session_machine(WAPEvent *event, WSP_PDU *pdu) {
WSPMachine *sm;
long session_id;
WAPAddrTuple *tuple;
tuple = NULL;
session_id = -1;
switch (event->type) {
case TR_Invoke_Ind:
tuple = wap_addr_tuple_duplicate(
event->u.TR_Invoke_Ind.addr_tuple);
break;
case TR_Invoke_Cnf:
tuple = wap_addr_tuple_duplicate(
event->u.TR_Invoke_Cnf.addr_tuple);
break;
case TR_Result_Cnf:
tuple = wap_addr_tuple_duplicate(
event->u.TR_Result_Cnf.addr_tuple);
break;
case TR_Abort_Ind:
tuple = wap_addr_tuple_duplicate(
event->u.TR_Abort_Ind.addr_tuple);
break;
case S_Connect_Res:
session_id = event->u.S_Connect_Res.session_id;
break;
case S_Resume_Res:
session_id = event->u.S_Resume_Res.session_id;
break;
case Disconnect_Event:
session_id = event->u.Disconnect_Event.session_handle;
break;
case Suspend_Event:
session_id = event->u.Suspend_Event.session_handle;
break;
case S_MethodInvoke_Res:
session_id = event->u.S_MethodInvoke_Res.session_id;
break;
case S_MethodResult_Req:
session_id = event->u.S_MethodResult_Req.session_id;
break;
case S_ConfirmedPush_Req:
session_id = event->u.S_ConfirmedPush_Req.session_id;
break;
case S_Push_Req:
session_id = event->u.S_Push_Req.session_id;
break;
default:
error(0, "WSP: Cannot find machine for %s event",
wap_event_name(event->type));
}
gw_assert(tuple != NULL || session_id != -1);
/* Pre-state-machine tests, according to 7.1.5. After the tests,
* caller will pass the event to sm if sm is not NULL. */
sm = NULL;
/* First test is for MRUEXCEEDED, and we don't have a MRU */
/* Second test is for class 2 TR-Invoke.ind with Connect PDU */
if (event->type == TR_Invoke_Ind &&
event->u.TR_Invoke_Ind.tcl == 2 &&
pdu->type == Connect) {
/* Create a new session, even if there is already
* a session open for this address. The new session
* will take care of killing the old ones. */
sm = machine_create();
gw_assert(tuple != NULL);
sm->addr_tuple = wap_addr_tuple_duplicate(tuple);
sm->connect_handle = event->u.TR_Invoke_Ind.handle;
/* Third test is for class 2 TR-Invoke.ind with Resume PDU */
} else if (event->type == TR_Invoke_Ind &&
event->u.TR_Invoke_Ind.tcl == 2 &&
pdu->type == Resume) {
/* Pass to session identified by session id, not
* the address tuple. */
session_id = pdu->u.Resume.sessionid;
sm = gwlist_search(session_machines, &session_id,
find_by_session_id);
if (sm == NULL) {
/* No session; TR-Abort.req(DISCONNECT) */
send_abort(WSP_ABORT_DISCONNECT,
event->u.TR_Invoke_Ind.handle);
}
/* Fourth test is for a class 1 or 2 TR-Invoke.Ind with no
* session for that address tuple. We also handle class 0
* TR-Invoke.ind here by ignoring them; this seems to be
* an omission in the spec table. */
} else if (event->type == TR_Invoke_Ind) {
sm = gwlist_search(session_machines, tuple,
transaction_belongs_to_session);
if (sm == NULL && (event->u.TR_Invoke_Ind.tcl == 1 ||
event->u.TR_Invoke_Ind.tcl == 2)) {
send_abort(WSP_ABORT_DISCONNECT,
event->u.TR_Invoke_Ind.handle);
}
/* Other tests are for events not handled by the state tables;
* do those later, after we've tried to handle them. */
} else {
if (session_id != -1) {
sm = gwlist_search(session_machines, &session_id,
find_by_session_id);
} else {
sm = gwlist_search(session_machines, tuple,
transaction_belongs_to_session);
}
/* The table doesn't really say what we should do with
* non-Invoke events for which there is no session. But
* such a situation means there is an error _somewhere_
* in the gateway. */
if (sm == NULL) {
error(0, "WSP: Cannot find session machine for event.");
wap_event_dump(event);
}
}
wap_addr_tuple_destroy(tuple);
return sm;
}
wtp_event = make_abort(reason, handle);
dispatch_to_wtp_init(wtp_event);
}
/*
* The server sends invoke (to be exact, makes TR-Invoke.req) only when it is
* pushing. (Only the client disconnects sessions.)
*/
static void send_invoke(WSPMachine *m, WSP_PDU *pdu, WAPEvent *e, long class)
{
WAPEvent *wtp_event;
wtp_event = wap_event_create(TR_Invoke_Req);
wtp_event->u.TR_Invoke_Req.addr_tuple =
wap_addr_tuple_duplicate(m->addr_tuple);
/*
* There is no mention of acknowledgement type in the specs.�But because
* confirmed push is confirmed after response from OTA, provider acknowledge-
* ments seem redundant.
*/
wtp_event->u.TR_Invoke_Req.up_flag = USER_ACKNOWLEDGEMENT;
wtp_event->u.TR_Invoke_Req.tcl = class;
if (e->type == S_ConfirmedPush_Req)
wtp_event->u.TR_Invoke_Req.handle =
e->u.S_ConfirmedPush_Req.server_push_id;
wtp_event->u.TR_Invoke_Req.user_data = wsp_pdu_pack(pdu);
wsp_pdu_destroy(pdu);
dispatch_to_wtp_init(wtp_event);
}
static void clientHello(WAPEvent * event, WTLSMachine * wtls_machine)
{
/* The Wap event we have to dispatch */
WAPEvent *res;
wtls_Payload *tempPayload;
wtls_PDU *clientHelloPDU;
CipherSuite *ciphersuite;
int randomCounter, algo;
tempPayload =
(wtls_Payload *) gwlist_search(event->u.T_Unitdata_Ind.pdu_list,
(void *)client_hello,
match_handshake_type);
if (!tempPayload) {
error(0, "Illegal PDU while waiting for a ClientHello");
fatalAlert(event, unexpected_message);
return;
}
clientHelloPDU = wtls_pdu_unpack(tempPayload, wtls_machine);
/* Store the client's random value - use pack for simplicity */
wtls_machine->client_random = octstr_create("");
randomCounter = pack_int32(wtls_machine->client_random, 0,
clientHelloPDU->u.handshake.client_hello->
random->gmt_unix_time);
octstr_insert(wtls_machine->client_random,
clientHelloPDU->u.handshake.client_hello->random->
random_bytes, randomCounter);
/* Select the ciphersuite from the supplied list */
ciphersuite =
wtls_choose_ciphersuite(clientHelloPDU->u.handshake.client_hello->
ciphersuites);
if (!ciphersuite) {
error(0, "Couldn't agree on encryption cipher. Aborting");
wtls_pdu_destroy(clientHelloPDU);
fatalAlert(event, handshake_failure);
return;
}
/* Set the relevant values in the wtls_machine and PDU structure */
wtls_machine->bulk_cipher_algorithm = ciphersuite->bulk_cipher_algo;
wtls_machine->mac_algorithm = ciphersuite->mac_algo;
/* Generate a SEC_Create_Res event, and pass it back into the queue */
res = wap_event_create(SEC_Create_Res);
res->u.SEC_Create_Res.addr_tuple =
wap_addr_tuple_duplicate(event->u.T_Unitdata_Ind.addr_tuple);
res->u.SEC_Create_Res.bulk_cipher_algo = ciphersuite->bulk_cipher_algo;
res->u.SEC_Create_Res.mac_algo = ciphersuite->mac_algo;
res->u.SEC_Create_Res.client_key_id = wtls_choose_clientkeyid
(clientHelloPDU->u.handshake.client_hello->client_key_ids, &algo);
if (!res->u.SEC_Create_Res.client_key_id) {
error(0, "Couldn't agree on key exchange protocol. Aborting");
wtls_pdu_destroy(clientHelloPDU);
wap_event_destroy(res);
fatalAlert(event, unknown_key_id);
return;
}
wtls_machine->key_algorithm = algo;
/* Set the sequence number mode in both the machine and the outgoing packet */
res->u.SEC_Create_Res.snmode =
wtls_choose_snmode(clientHelloPDU->u.handshake.client_hello->
snmode);
wtls_machine->sequence_number_mode = res->u.SEC_Create_Res.snmode;
/* Set the key refresh mode in both the machine and the outgoing packet */
res->u.SEC_Create_Res.krefresh =
clientHelloPDU->u.handshake.client_hello->krefresh;
wtls_machine->key_refresh = res->u.SEC_Create_Res.krefresh;
/* Global refresh variable */
debug("wtls", 0, "clientHello ~> Accepted refresh = %d, refresh_rate = "
"%d", wtls_machine->key_refresh, 1 << wtls_machine->key_refresh);
/* Keep the data so we can send it back in EXCHANGE
* temporary - needs to delete old one if exists !
* wtls_machine->handshake_data = octstr_create("");
*/
if (wtls_machine->handshake_data)
octstr_destroy(wtls_machine->handshake_data);
wtls_machine->handshake_data = octstr_create("");
octstr_append(wtls_machine->handshake_data, tempPayload->data);
debug("wtls", 0, "clientHello ~> Dispatching SEC_Create_Res event");
wtls_pdu_destroy(clientHelloPDU);
wtls_dispatch_event(res);
}
static void serverHello(WAPEvent * event, WTLSMachine * wtls_machine)
{
WAPEvent *req;
wtls_PDU *serverHelloPDU;
// wtls_PDU* certificatePDU;
Random *tempRandom;
/* List *certList;
Certificate *cert;
*/ int randomCounter = 0;
/* Our serverHello */
serverHelloPDU = wtls_pdu_create(Handshake_PDU);
serverHelloPDU->rlen = 1;
serverHelloPDU->snMode = wtls_machine->sequence_number_mode ? 1 : 0;
serverHelloPDU->u.handshake.msg_type = server_hello;
serverHelloPDU->u.handshake.server_hello =
(ServerHello *) gw_malloc(sizeof(ServerHello));
/* Set our server version */
serverHelloPDU->u.handshake.server_hello->serverversion = 1;
/* Get a suitably random number - store it in both the machine structure and outgoing PDU */
tempRandom = wtls_get_random();
wtls_machine->server_random = octstr_create("");
randomCounter =
pack_int32(wtls_machine->server_random, 0,
tempRandom->gmt_unix_time);
octstr_insert(wtls_machine->server_random, tempRandom->random_bytes,
octstr_len(wtls_machine->server_random));
serverHelloPDU->u.handshake.server_hello->random = tempRandom;
/* At the moment, we don't support session caching, so tell them to forget about caching us */
serverHelloPDU->u.handshake.server_hello->session_id =
octstr_format("%llu", wtls_machine->mid);
/* We need to select an appropriate mechanism here from the ones listed */
serverHelloPDU->u.handshake.server_hello->client_key_id =
event->u.SEC_Create_Res.client_key_id;
/* Get our ciphersuite details */
serverHelloPDU->u.handshake.server_hello->ciphersuite = (CipherSuite *)
gw_malloc(sizeof(CipherSuite));
serverHelloPDU->u.handshake.server_hello->ciphersuite->bulk_cipher_algo
= event->u.SEC_Create_Res.bulk_cipher_algo;
serverHelloPDU->u.handshake.server_hello->ciphersuite->mac_algo =
event->u.SEC_Create_Res.mac_algo;
serverHelloPDU->u.handshake.server_hello->comp_method = null_comp;
/* We need to confirm the client's choice, or if they haven't
* specified one, select one ourselves
*/
serverHelloPDU->u.handshake.server_hello->snmode =
event->u.SEC_Create_Res.snmode;
/* We need to either confirm the client's choice of key refresh rate, or choose a lower rate */
serverHelloPDU->u.handshake.server_hello->krefresh =
event->u.SEC_Create_Res.krefresh;
/* Add the PDUsto the server's outgoing list */
add_pdu(wtls_machine, serverHelloPDU);
wtls_pdu_destroy(serverHelloPDU);
/* Generate and dispatch a SEC_Exchange_Req or maybe a SEC_Commit_Req */
req = wap_event_create(SEC_Exchange_Req);
req->u.SEC_Exchange_Req.addr_tuple =
wap_addr_tuple_duplicate(event->u.T_Unitdata_Ind.addr_tuple);
wtls_dispatch_event(req);
debug("wtls", 0, "serverHello ~> Dispatching SEC_Exchange_Req event");
}