Merge pull request #85 from perexg/fixes-emm

Another four patches to handle EMM/ECM issues, cleanups
This commit is contained in:
Andreas Öman 2012-04-14 11:25:24 -07:00
commit cfa65b2a6f
5 changed files with 151 additions and 62 deletions

View file

@ -51,6 +51,9 @@
<dt>Update Card
<dd>Forward Entitlement Management Messages (EMMs) to the server.
<dt>Update One
<dd>Forward EMMs only from one channel at a time.
<dt>Comment
<dd>Allows the administrator to set a comment only visible in this editor.
It does not serve any active purpose.

186
src/cwc.c
View file

@ -151,7 +151,8 @@ typedef struct cwc_service {
enum {
CS_UNKNOWN,
CS_RESOLVED,
CS_FORBIDDEN
CS_FORBIDDEN,
CS_IDLE
} cs_keystate;
void *cs_keys;
@ -243,9 +244,14 @@ typedef struct cwc {
int shared_toggle;
int shared_len;
uint8_t * shared_emm;
void *ca_update_id;
} cwc_viaccess_emm;
#define cwc_cryptoworks_emm cwc_viaccess_emm
/* one update id */
int64_t cwc_update_time;
void *cwc_update_id;
/* Card type */
card_type_t cwc_card_type;
@ -260,6 +266,7 @@ typedef struct cwc {
int cwc_port;
char *cwc_id;
int cwc_emm;
int cwc_emmex;
const char *cwc_errtxt;
@ -584,10 +591,10 @@ cwc_decode_card_data_reply(cwc_t *cwc, uint8_t *msg, int len)
memcpy(cwc->cwc_ua, &msg[6], 8);
tvhlog(LOG_INFO, "cwc", "%s: Connected as user 0x%02x "
tvhlog(LOG_INFO, "cwc", "%s:%i: Connected as user 0x%02x "
"to a %s-card [0x%04x : %02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x] "
"with %d providers",
cwc->cwc_hostname,
cwc->cwc_hostname, cwc->cwc_port,
msg[3], n, cwc->cwc_caid,
cwc->cwc_ua[0], cwc->cwc_ua[1], cwc->cwc_ua[2], cwc->cwc_ua[3], cwc->cwc_ua[4], cwc->cwc_ua[5], cwc->cwc_ua[6], cwc->cwc_ua[7],
nprov);
@ -610,8 +617,8 @@ cwc_decode_card_data_reply(cwc_t *cwc, uint8_t *msg, int len)
cwc->cwc_providers[i].sa[6] = msg[9];
cwc->cwc_providers[i].sa[7] = msg[10];
tvhlog(LOG_INFO, "cwc", "%s: Provider ID #%d: 0x%06x %02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x",
cwc->cwc_hostname, i + 1,
tvhlog(LOG_INFO, "cwc", "%s:%i: Provider ID #%d: 0x%06x %02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x",
cwc->cwc_hostname, cwc->cwc_port, i + 1,
cwc->cwc_providers[i].id,
cwc->cwc_providers[i].sa[0],
cwc->cwc_providers[i].sa[1],
@ -634,16 +641,16 @@ cwc_decode_card_data_reply(cwc_t *cwc, uint8_t *msg, int len)
if (!emm_allowed) {
tvhlog(LOG_INFO, "cwc",
"%s: Will not forward EMMs (not allowed by server)",
cwc->cwc_hostname);
"%s:%i: Will not forward EMMs (not allowed by server)",
cwc->cwc_hostname, cwc->cwc_port);
} else if (cwc->cwc_card_type != CARD_UNKNOWN) {
tvhlog(LOG_INFO, "cwc", "%s: Will forward EMMs",
cwc->cwc_hostname);
tvhlog(LOG_INFO, "cwc", "%s:%i: Will forward EMMs",
cwc->cwc_hostname, cwc->cwc_port);
cwc->cwc_forward_emm = 1;
} else {
tvhlog(LOG_INFO, "cwc",
"%s: Will not forward EMMs (unsupported CA system)",
cwc->cwc_hostname);
"%s:%i: Will not forward EMMs (unsupported CA system)",
cwc->cwc_hostname, cwc->cwc_port);
}
}
@ -666,43 +673,43 @@ cwc_detect_card_type(cwc_t *cwc)
case 0x17:
case 0x06:
cwc->cwc_card_type = CARD_IRDETO;
tvhlog(LOG_INFO, "cwc", "%s: irdeto card",
cwc->cwc_hostname);
tvhlog(LOG_INFO, "cwc", "%s:%i: irdeto card",
cwc->cwc_hostname, cwc->cwc_port);
break;
case 0x05:
cwc->cwc_card_type = CARD_VIACCESS;
tvhlog(LOG_INFO, "cwc", "%s: viaccess card",
cwc->cwc_hostname);
tvhlog(LOG_INFO, "cwc", "%s:%i: viaccess card",
cwc->cwc_hostname, cwc->cwc_port);
break;
case 0x0b:
cwc->cwc_card_type = CARD_CONAX;
tvhlog(LOG_INFO, "cwc", "%s: conax card",
cwc->cwc_hostname);
tvhlog(LOG_INFO, "cwc", "%s:%i: conax card",
cwc->cwc_hostname, cwc->cwc_port);
break;
case 0x01:
cwc->cwc_card_type = CARD_SECA;
tvhlog(LOG_INFO, "cwc", "%s: seca card",
cwc->cwc_hostname);
tvhlog(LOG_INFO, "cwc", "%s:%i: seca card",
cwc->cwc_hostname, cwc->cwc_port);
break;
case 0x4a:
cwc->cwc_card_type = CARD_DRE;
tvhlog(LOG_INFO, "cwc", "%s: dre card",
cwc->cwc_hostname);
tvhlog(LOG_INFO, "cwc", "%s:%i: dre card",
cwc->cwc_hostname, cwc->cwc_port);
break;
case 0x18:
cwc->cwc_card_type = CARD_NAGRA;
tvhlog(LOG_INFO, "cwc", "%s: nagra card",
cwc->cwc_hostname);
tvhlog(LOG_INFO, "cwc", "%s:%i: nagra card",
cwc->cwc_hostname, cwc->cwc_port);
break;
case 0x09:
cwc->cwc_card_type = CARD_NDS;
tvhlog(LOG_INFO, "cwc", "%s: nds card",
cwc->cwc_hostname);
tvhlog(LOG_INFO, "cwc", "%s:%i: nds card",
cwc->cwc_hostname, cwc->cwc_port);
break;
case 0x0d:
cwc->cwc_card_type = CARD_CRYPTOWORKS;
tvhlog(LOG_INFO, "cwc", "%s: cryptoworks card",
cwc->cwc_hostname);
tvhlog(LOG_INFO, "cwc", "%s:%i: cryptoworks card",
cwc->cwc_hostname, cwc->cwc_port);
break;
default:
cwc->cwc_card_type = CARD_UNKNOWN;
@ -736,6 +743,8 @@ handle_ecm_reply(cwc_service_t *ct, ecm_section_t *es, uint8_t *msg,
int len, int seq)
{
service_t *t = ct->cs_service;
cwc_service_t *ct2;
cwc_t *cwc2;
ecm_pid_t *ep;
char chaninfo[32];
int i;
@ -756,20 +765,48 @@ handle_ecm_reply(cwc_service_t *ct, ecm_section_t *es, uint8_t *msg,
if(ct->cs_okchannel == es->es_channel)
ct->cs_okchannel = -1;
if (es->es_nok < 3)
es->es_nok++;
if(ct->cs_keystate == CS_FORBIDDEN)
return; // We already know it's bad
es->es_nok = 1;
if (es->es_nok > 2) {
tvhlog(LOG_DEBUG, "cwc",
"Too many NOKs for service \"%s\"%s from %s:%i",
t->s_svcname, chaninfo, ct->cs_cwc->cwc_hostname,
ct->cs_cwc->cwc_port);
goto forbid;
}
TAILQ_FOREACH(cwc2, &cwcs, cwc_link) {
LIST_FOREACH(ct2, &cwc2->cwc_services, cs_link) {
if (ct != ct2 && ct2->cs_service == t &&
ct2->cs_keystate == CS_RESOLVED) {
tvhlog(LOG_DEBUG, "cwc",
"NOK from %s:%i: Already has a key for service \"%s\", from %s:%i",
ct->cs_cwc->cwc_hostname, ct->cs_cwc->cwc_port,
t->s_svcname, ct2->cs_cwc->cwc_hostname, ct2->cs_cwc->cwc_port);
es->es_nok = 3; /* do not send more ECM requests */
goto forbid;
}
}
}
tvhlog(LOG_DEBUG, "cwc", "Received NOK for service \"%s\"%s (seqno: %d "
"Req delay: %lld ms)", t->s_svcname, chaninfo, seq, delay);
forbid:
LIST_FOREACH(ep, &ct->cs_pids, ep_link) {
for(i = 0; i <= ep->ep_last_section; i++)
if(ep->ep_sections[i] == NULL ||
ep->ep_sections[i]->es_pending ||
ep->ep_sections[i]->es_nok == 0)
return;
if(ep->ep_sections[i] == NULL) {
if(es->es_nok < 2) /* only first hit is allowed */
return;
} else {
if(ep->ep_sections[i]->es_pending ||
ep->ep_sections[i]->es_nok == 0)
return;
}
}
tvhlog(LOG_ERR, "cwc",
"Can not descramble service \"%s\", access denied (seqno: %d "
@ -794,12 +831,26 @@ handle_ecm_reply(cwc_service_t *ct, ecm_section_t *es, uint8_t *msg,
msg[3 + 5], msg[3 + 6], msg[3 + 7], msg[3 + 8], msg[3 + 9],
msg[3 + 10],msg[3 + 11],msg[3 + 12],msg[3 + 13],msg[3 + 14],
msg[3 + 15], seq, delay);
TAILQ_FOREACH(cwc2, &cwcs, cwc_link) {
LIST_FOREACH(ct2, &cwc2->cwc_services, cs_link) {
if (ct != ct2 && ct2->cs_service == t &&
ct2->cs_keystate == CS_RESOLVED) {
ct->cs_keystate = CS_IDLE;
tvhlog(LOG_DEBUG, "cwc",
"Already has a key for service \"%s\", from %s:%i",
t->s_svcname, ct2->cs_cwc->cwc_hostname, ct2->cs_cwc->cwc_port);
return;
}
}
}
if(ct->cs_keystate != CS_RESOLVED)
tvhlog(LOG_INFO, "cwc",
"Obtained key for for service \"%s\" in %lld ms, from %s",
t->s_svcname, delay, ct->cs_cwc->cwc_hostname);
"Obtained key for service \"%s\" in %lld ms, from %s:%i",
t->s_svcname, delay, ct->cs_cwc->cwc_hostname,
ct->cs_cwc->cwc_port);
ct->cs_keystate = CS_RESOLVED;
memcpy(ct->cs_cw, msg + 3, 16);
ct->cs_pending_cw_update = 1;
@ -885,15 +936,15 @@ cwc_read_message(cwc_t *cwc, const char *state, int timeout)
int msglen, r;
if((r = cwc_read(cwc, buf, 2, timeout))) {
tvhlog(LOG_INFO, "cwc", "%s: %s: Read error (header): %s",
cwc->cwc_hostname, state, strerror(r));
tvhlog(LOG_INFO, "cwc", "%s:%i: %s: Read error (header): %s",
cwc->cwc_hostname, cwc->cwc_port, state, strerror(r));
return -1;
}
msglen = (buf[0] << 8) | buf[1];
if(msglen >= CWS_NETMSGSIZE) {
tvhlog(LOG_INFO, "cwc", "%s: %s: Invalid message size: %d",
cwc->cwc_hostname, state, msglen);
tvhlog(LOG_INFO, "cwc", "%s:%i: %s: Invalid message size: %d",
cwc->cwc_hostname, cwc->cwc_port, state, msglen);
return -1;
}
@ -901,14 +952,14 @@ cwc_read_message(cwc_t *cwc, const char *state, int timeout)
so just wait 1 second here */
if((r = cwc_read(cwc, cwc->cwc_buf + 2, msglen, 1000))) {
tvhlog(LOG_INFO, "cwc", "%s: %s: Read error: %s",
cwc->cwc_hostname, state, strerror(r));
tvhlog(LOG_INFO, "cwc", "%s:%i: %s: Read error: %s",
cwc->cwc_hostname, cwc->cwc_port, state, strerror(r));
return -1;
}
if((msglen = des_decrypt(cwc->cwc_buf, msglen + 2, cwc)) < 15) {
tvhlog(LOG_INFO, "cwc", "%s: %s: Decrypt failed",
state, cwc->cwc_hostname);
tvhlog(LOG_INFO, "cwc", "%s:%i: %s: Decrypt failed",
cwc->cwc_hostname, cwc->cwc_port, state);
return -1;
}
return msglen;
@ -970,8 +1021,8 @@ cwc_session(cwc_t *cwc)
* Get login key
*/
if((r = cwc_read(cwc, cwc->cwc_buf, 14, 5000))) {
tvhlog(LOG_INFO, "cwc", "%s: No login key received: %s",
cwc->cwc_hostname, strerror(r));
tvhlog(LOG_INFO, "cwc", "%s:%i: No login key received: %s",
cwc->cwc_hostname, cwc->cwc_port, strerror(r));
return;
}
@ -986,7 +1037,8 @@ cwc_session(cwc_t *cwc)
return;
if(cwc->cwc_buf[12] != MSG_CLIENT_2_SERVER_LOGIN_ACK) {
tvhlog(LOG_INFO, "cwc", "%s: Login failed", cwc->cwc_hostname);
tvhlog(LOG_INFO, "cwc", "%s:%i: Login failed",
cwc->cwc_hostname, cwc->cwc_port);
return;
}
@ -1000,7 +1052,8 @@ cwc_session(cwc_t *cwc)
return;
if(cwc->cwc_buf[12] != MSG_CARD_DATA) {
tvhlog(LOG_INFO, "cwc", "%s: Card data request failed", cwc->cwc_hostname);
tvhlog(LOG_INFO, "cwc", "%s:%i: Card data request failed",
cwc->cwc_hostname, cwc->cwc_port);
return;
}
@ -1102,7 +1155,8 @@ cwc_thread(void *aux)
cwc->cwc_caid = 0;
cwc->cwc_connected = 0;
cwc_comet_status_update(cwc);
tvhlog(LOG_INFO, "cwc", "Disconnected from %s", cwc->cwc_hostname);
tvhlog(LOG_INFO, "cwc", "Disconnected from %s:%i",
cwc->cwc_hostname, cwc->cwc_port);
}
if(subscriptions_active()) {
@ -1117,13 +1171,14 @@ cwc_thread(void *aux)
ts.tv_nsec = 0;
tvhlog(LOG_INFO, "cwc",
"%s: Automatic connection attempt in in %d seconds",
cwc->cwc_hostname, d);
"%s:%i: Automatic connection attempt in in %d seconds",
cwc->cwc_hostname, cwc->cwc_port, d);
pthread_cond_timedwait(&cwc_config_changed, &cwc_mutex, &ts);
}
tvhlog(LOG_INFO, "cwc", "%s destroyed", cwc->cwc_hostname);
tvhlog(LOG_INFO, "cwc", "%s:%i destroyed",
cwc->cwc_hostname, cwc->cwc_port);
while((ct = LIST_FIRST(&cwc->cwc_services)) != NULL) {
t = ct->cs_service;
@ -1188,7 +1243,7 @@ cwc_emm_cache_lookup(cwc_t *cwc, uint32_t crc)
*
*/
void
cwc_emm(uint8_t *data, int len, uint16_t caid)
cwc_emm(uint8_t *data, int len, uint16_t caid, void *ca_update_id)
{
cwc_t *cwc;
@ -1197,6 +1252,15 @@ cwc_emm(uint8_t *data, int len, uint16_t caid)
TAILQ_FOREACH(cwc, &cwcs, cwc_link) {
if(cwc->cwc_caid == caid &&
cwc->cwc_forward_emm && cwc->cwc_writer_running) {
if (cwc->cwc_emmex) {
if (cwc->cwc_update_id != ca_update_id) {
int64_t delta = getmonoclock() - cwc->cwc_update_time;
if (delta < 25000000UL) /* 25 seconds */
continue;
}
cwc->cwc_update_time = getmonoclock();
}
cwc->cwc_update_id = ca_update_id;
switch (cwc->cwc_card_type) {
case CARD_CONAX:
cwc_emm_conax(cwc, data, len);
@ -1414,13 +1478,15 @@ cwc_emm_viaccess(cwc_t *cwc, uint8_t *data, int mlen)
if (cwc->cwc_viaccess_emm.shared_emm) {
cwc->cwc_viaccess_emm.shared_len = len;
memcpy(cwc->cwc_viaccess_emm.shared_emm, data, len);
cwc->cwc_viaccess_emm.ca_update_id = cwc->cwc_update_id;
}
cwc->cwc_viaccess_emm.shared_toggle = data[0];
}
}
break;
case 0x8e:
if (cwc->cwc_viaccess_emm.shared_emm) {
if (cwc->cwc_viaccess_emm.shared_emm &&
cwc->cwc_viaccess_emm.ca_update_id == cwc->cwc_update_id) {
int match = 0;
int i;
/* Match SA and provider in shared */
@ -1502,6 +1568,9 @@ cwc_table_input(struct th_descrambler *td, struct service *t,
char chaninfo[32];
caid_t *c;
if (ct->cs_keystate == CS_IDLE)
return;
if(len > 4096)
return;
@ -1553,6 +1622,9 @@ cwc_table_input(struct th_descrambler *td, struct service *t,
es = ep->ep_sections[section];
if (es->es_nok > 2)
break; /* too many NOK responses in a row */
if(es->es_ecmsize == len && !memcmp(es->es_ecm, data, len))
break; /* key already sent */
@ -1686,11 +1758,13 @@ cwc_emm_cryptoworks(cwc_t *cwc, uint8_t *data, int len)
if (cwc->cwc_cryptoworks_emm.shared_emm) {
cwc->cwc_cryptoworks_emm.shared_len = len;
memcpy(cwc->cwc_cryptoworks_emm.shared_emm, data, len);
cwc->cwc_cryptoworks_emm.ca_update_id = cwc->cwc_update_id;
}
}
break;
case 0x86: /* emm-sb */
if (cwc->cwc_cryptoworks_emm.shared_emm) {
if (cwc->cwc_cryptoworks_emm.shared_emm &&
cwc->cwc_cryptoworks_emm.ca_update_id == cwc->cwc_update_id) {
/* python: EMM_SH[0:12] + EMM_SB[5:-1] + EMM_SH[12:-1] */
uint32_t elen = len - 5 + cwc->cwc_cryptoworks_emm.shared_len - 12;
uint8_t *tmp = malloc(elen);
@ -1993,6 +2067,7 @@ cwc_record_build(cwc_t *cwc)
htsmsg_add_str(e, "deskey", buf);
htsmsg_add_u32(e, "emm", cwc->cwc_emm);
htsmsg_add_u32(e, "emmex", cwc->cwc_emmex);
htsmsg_add_str(e, "comment", cwc->cwc_comment ?: "");
return e;
@ -2079,6 +2154,9 @@ cwc_entry_update(void *opaque, const char *id, htsmsg_t *values, int maycreate)
if(!htsmsg_get_u32(values, "emm", &u32))
cwc->cwc_emm = u32;
if(!htsmsg_get_u32(values, "emmex", &u32))
cwc->cwc_emmex = u32;
cwc->cwc_reconfigure = 1;
if(cwc->cwc_fd != -1)

View file

@ -23,6 +23,6 @@ void cwc_init(void);
void cwc_service_start(struct service *t);
void cwc_emm(uint8_t *data, int len, uint16_t caid);
void cwc_emm(uint8_t *data, int len, uint16_t caid, void *ca_update_id);
#endif /* CWC_H_ */

View file

@ -44,7 +44,7 @@
#define TDT_CRC 0x1
#define TDT_QUICKREQ 0x2
#define TDT_INC_TABLE_HDR 0x4
#define TDT_CA 0x4
static void dvb_table_add_pmt(th_dvb_mux_instance_t *tdmi, int pmt_pid);
@ -214,8 +214,9 @@ dvb_proc_table(th_dvb_mux_instance_t *tdmi, th_dvb_table_t *tdt, uint8_t *sec,
ptr = &sec[3];
if(chkcrc) len -= 4; /* Strip trailing CRC */
if(tdt->tdt_flags & TDT_INC_TABLE_HDR)
ret = tdt->tdt_callback(tdmi, sec, len + 3, tableid, tdt->tdt_opaque);
if(tdt->tdt_flags & TDT_CA)
ret = tdt->tdt_callback((th_dvb_mux_instance_t *)tdt,
sec, len + 3, tableid, tdt->tdt_opaque);
else
ret = tdt->tdt_callback(tdmi, ptr, len, tableid, tdt->tdt_opaque);
@ -828,7 +829,7 @@ static int
dvb_ca_callback(th_dvb_mux_instance_t *tdmi, uint8_t *ptr, int len,
uint8_t tableid, void *opaque)
{
cwc_emm(ptr, len, (uintptr_t)opaque);
cwc_emm(ptr, len, (uintptr_t)opaque, (void *)tdmi);
return 0;
}
@ -864,7 +865,7 @@ dvb_cat_callback(th_dvb_mux_instance_t *tdmi, uint8_t *ptr, int len,
break;
tdt_add(tdmi, NULL, dvb_ca_callback, (void *)caid, "CA",
TDT_INC_TABLE_HDR, pid, NULL);
TDT_CA, pid, NULL);
break;
default:

View file

@ -14,6 +14,12 @@ tvheadend.cwceditor = function() {
width: 100
});
var emmexColumn = new Ext.grid.CheckColumn({
header: "Update One",
dataIndex: 'emmex',
width: 100
});
function setMetaAttr(meta, record){
var enabled = record.get('enabled');
if(!enabled) return;
@ -72,6 +78,7 @@ tvheadend.cwceditor = function() {
editor: new fm.TextField({allowBlank: false})
},
emmColumn,
emmexColumn,
{
header: "Comment",
dataIndex: 'comment',
@ -86,7 +93,7 @@ tvheadend.cwceditor = function() {
var rec = Ext.data.Record.create([
'enabled', 'connected', 'hostname', 'port', 'username',
'password', 'deskey', 'emm', 'comment'
'password', 'deskey', 'emm', 'emmex', 'comment'
]);
var store = new Ext.data.JsonStore({
@ -99,7 +106,7 @@ tvheadend.cwceditor = function() {
});
var grid = new tvheadend.tableEditor('Code Word Client', 'cwc', cm, rec,
[enabledColumn, emmColumn], store,
[enabledColumn, emmColumn, emmexColumn], store,
'config_cwc.html', 'key');
tvheadend.comet.on('cwcStatus', function(msg) {