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module-stat.c
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module-stat.c
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#include "globals.h"
#ifdef WITH_LB
#include "module-cacheex.h"
#include "module-cccam.h"
#include "oscam-chk.h"
#include "oscam-client.h"
#include "oscam-ecm.h"
#include "oscam-files.h"
#include "oscam-lock.h"
#include "oscam-string.h"
#include "oscam-time.h"
#define UNDEF_AVG_TIME 80000
#define MAX_ECM_SEND_CACHE 16
#define LB_REOPEN_MODE_STANDARD 0
#define LB_REOPEN_MODE_FAST 1
#define LB_NONE 0
#define LB_FASTEST_READER_FIRST 1
#define LB_OLDEST_READER_FIRST 2
#define LB_LOWEST_USAGELEVEL 3
#define LB_LOG_ONLY 10
#define DEFAULT_LOCK_TIMEOUT 1000
static int32_t stat_load_save;
static time_t last_housekeeping = 0;
void init_stat(void)
{
stat_load_save = -100;
//checking config
if (cfg.lb_nbest_readers < 2)
cfg.lb_nbest_readers = DEFAULT_NBEST;
if (cfg.lb_nfb_readers < 2)
cfg.lb_nfb_readers = DEFAULT_NFB;
if (cfg.lb_min_ecmcount < 2)
cfg.lb_min_ecmcount = DEFAULT_MIN_ECM_COUNT;
if (cfg.lb_max_ecmcount < 3)
cfg.lb_max_ecmcount = DEFAULT_MAX_ECM_COUNT;
if (cfg.lb_reopen_seconds < 10)
cfg.lb_reopen_seconds = DEFAULT_REOPEN_SECONDS;
if (cfg.lb_retrylimit <= 0)
cfg.lb_retrylimit = DEFAULT_RETRYLIMIT;
if (cfg.lb_stat_cleanup <= 0)
cfg.lb_stat_cleanup = DEFAULT_LB_STAT_CLEANUP;
}
#define LINESIZE 1024
static uint32_t get_prid(uint16_t caid, uint32_t prid)
{
int32_t i;
for (i=0;i<CS_MAXCAIDTAB;i++) {
uint16_t tcaid = cfg.lb_noproviderforcaid.caid[i];
if (!tcaid) break;
if ((tcaid == caid) || (tcaid < 0x0100 && (caid >> 8) == tcaid)) {
prid = 0;
break;
}
}
return prid;
}
static uint32_t get_subid(ECM_REQUEST *er)
{
if (!er->ecmlen)
return 0;
uint32_t id = 0;
switch (er->caid>>8)
{
case 0x01: id = b2i(2, er->ecm+7); break;
case 0x06: id = b2i(2, er->ecm+6); break;
case 0x09: id = b2i(2, er->ecm+11); break;
case 0x4A: // DRE-Crypt, Bulcrypt, others?
if (er->caid != 0x4AEE) // Bulcrypt
id = er->ecm[7];
break;
}
return id;
}
static void get_stat_query(ECM_REQUEST *er, STAT_QUERY *q)
{
memset(q, 0, sizeof(STAT_QUERY));
q->caid = er->caid;
q->prid = get_prid(er->caid, er->prid);
q->srvid = er->srvid;
q->chid = get_subid(er);
q->ecmlen = er->ecmlen;
}
void load_stat_from_file(void)
{
stat_load_save = 0;
char buf[256];
char *line;
char *fname;
FILE *file;
if (!cfg.lb_savepath) {
get_tmp_dir_filename(buf, sizeof(buf), "stat");
fname = buf;
}
else
fname = cfg.lb_savepath;
file = fopen(fname, "r");
if (!file) {
cs_log("loadbalancer: can't read from file %s", fname);
return;
}
if (!cs_malloc(&line, LINESIZE))
return;
setvbuf(file, NULL, _IOFBF, 128*1024);
cs_debug_mask(D_LB, "loadbalancer: load statistics from %s", fname);
struct timeb ts, te;
cs_ftime(&ts);
struct s_reader *rdr = NULL;
READER_STAT *s;
int32_t i=1;
int32_t valid=0;
int32_t count=0;
int32_t type=0;
char *ptr, *saveptr1 = NULL;
char *split[12];
while (fgets(line, LINESIZE, file))
{
if (!line[0] || line[0] == '#' || line[0] == ';')
continue;
if (!cs_malloc(&s, sizeof(READER_STAT)))
continue;
//get type by evaluating first line:
if (type==0) {
if (strstr(line, " rc ")) type = 2;
else type = 1;
}
if (type==1) { //New format - faster parsing:
for (i = 0, ptr = strtok_r(line, ",", &saveptr1); ptr && i<12 ; ptr = strtok_r(NULL, ",", &saveptr1), i++)
split[i] = ptr;
valid = (i==11);
if (valid) {
strncpy(buf, split[0], sizeof(buf)-1);
s->rc = atoi(split[1]);
s->caid = a2i(split[2], 4);
s->prid = a2i(split[3], 6);
s->srvid = a2i(split[4], 4);
s->chid = a2i(split[5], 4);
s->time_avg = atoi(split[6]);
s->ecm_count = atoi(split[7]);
s->last_received = atol(split[8]);
s->fail_factor = atoi(split[9]);
s->ecmlen = a2i(split[10], 2);
}
} else { //Old format - keep for compatibility:
i = sscanf(line, "%255s rc %04d caid %04hX prid %06X srvid %04hX time avg %dms ecms %d last %ld fail %d len %02hX\n",
buf, &s->rc, &s->caid, &s->prid, &s->srvid,
&s->time_avg, &s->ecm_count, &s->last_received, &s->fail_factor, &s->ecmlen);
valid = i>5;
}
if (valid && s->ecmlen > 0) {
if (rdr == NULL || strcmp(buf, rdr->label) != 0) {
LL_ITER itr = ll_iter_create(configured_readers);
while ((rdr=ll_iter_next(&itr))) {
if (strcmp(rdr->label, buf) == 0) {
break;
}
}
}
if (rdr != NULL && strcmp(buf, rdr->label) == 0) {
if (!rdr->lb_stat) {
rdr->lb_stat = ll_create("lb_stat");
cs_lock_create(&rdr->lb_stat_lock, DEFAULT_LOCK_TIMEOUT, rdr->label);
}
ll_append(rdr->lb_stat, s);
count++;
}
else
{
cs_log("loadbalancer: statistics could not be loaded for %s", buf);
free(s);
}
}
else
{
cs_debug_mask(D_LB, "loadbalancer: statistics ERROR: %s rc=%d i=%d", buf, s->rc, i);
free(s);
}
}
fclose(file);
free(line);
cs_ftime(&te);
#ifdef WITH_DEBUG
int32_t load_time = 1000*(te.time-ts.time)+te.millitm-ts.millitm;
cs_debug_mask(D_LB, "loadbalancer: statistics loaded %d records in %dms", count, load_time);
#endif
}
/**
* get statistic values for reader ridx and caid/prid/srvid/ecmlen
**/
static READER_STAT *get_stat_lock(struct s_reader *rdr, STAT_QUERY *q, int8_t lock)
{
if (!rdr->lb_stat) {
rdr->lb_stat = ll_create("lb_stat");
cs_lock_create(&rdr->lb_stat_lock, DEFAULT_LOCK_TIMEOUT, rdr->label);
}
if (lock) cs_readlock(&rdr->lb_stat_lock);
LL_ITER it = ll_iter_create(rdr->lb_stat);
READER_STAT *s;
int32_t i = 0;
while ((s = ll_iter_next(&it))) {
i++;
if (s->caid==q->caid && s->prid==q->prid && s->srvid==q->srvid && s->chid==q->chid) {
if (s->ecmlen == q->ecmlen)
break;
if (!s->ecmlen) {
s->ecmlen = q->ecmlen;
break;
}
if (!q->ecmlen) //Query without ecmlen from dvbapi
break;
}
}
if (lock) cs_readunlock(&rdr->lb_stat_lock);
//Move stat to list start for faster access:
// if (i > 10 && s) {
// if (lock) cs_writelock(&rdr->lb_stat_lock);
// ll_iter_move_first(&it);
// if (lock) cs_writeunlock(&rdr->lb_stat_lock);
// } Corsair removed, could cause crashes!
return s;
}
/**
* get statistic values for reader ridx and caid/prid/srvid/ecmlen
**/
static READER_STAT *get_stat(struct s_reader *rdr, STAT_QUERY *q)
{
return get_stat_lock(rdr, q, 1);
}
/**
* Calculates average time
*/
static void calc_stat(READER_STAT *s)
{
int32_t i, c=0, t = 0;
for (i = 0; i < LB_MAX_STAT_TIME; i++) {
if (s->time_stat[i] > 0) {
t += (int32_t)s->time_stat[i];
c++;
}
}
if (!c)
s->time_avg = UNDEF_AVG_TIME;
else
s->time_avg = t / c;
}
/**
* Saves statistik to /tmp/.oscam/stat.n where n is reader-index
*/
static void save_stat_to_file_thread(void)
{
stat_load_save = 0;
char buf[256];
set_thread_name(__func__);
char *fname;
if (!cfg.lb_savepath) {
get_tmp_dir_filename(buf, sizeof(buf), "stat");
fname = buf;
}
else
fname = cfg.lb_savepath;
FILE *file = fopen(fname, "w");
if (!file) {
cs_log("can't write to file %s", fname);
return;
}
setvbuf(file, NULL, _IOFBF, 128*1024);
struct timeb ts, te;
cs_ftime(&ts);
time_t cleanup_time = time(NULL) - (cfg.lb_stat_cleanup*60*60);
int32_t count=0;
struct s_reader *rdr;
LL_ITER itr = ll_iter_create(configured_readers);
while ((rdr=ll_iter_next(&itr))) {
if (rdr->lb_stat) {
cs_writelock(&rdr->lb_stat_lock);
LL_ITER it = ll_iter_create(rdr->lb_stat);
READER_STAT *s;
while ((s = ll_iter_next(&it))) {
if (s->last_received < cleanup_time || !s->ecmlen) { //cleanup old stats
ll_iter_remove_data(&it);
continue;
}
//Old version, too slow to parse:
//fprintf(file, "%s rc %d caid %04hX prid %06X srvid %04hX time avg %dms ecms %d last %ld fail %d len %02hX\n",
// rdr->label, s->rc, s->caid, s->prid,
// s->srvid, s->time_avg, s->ecm_count, s->last_received, s->fail_factor, s->ecmlen);
//New version:
fprintf(file, "%s,%d,%04hX,%06X,%04hX,%04hX,%d,%d,%ld,%d,%02hX\n",
rdr->label, s->rc, s->caid, s->prid,
s->srvid, (uint16_t)s->chid, s->time_avg, s->ecm_count, s->last_received, s->fail_factor, s->ecmlen);
count++;
// if (count % 500 == 0) { //Saving stats is using too much cpu and causes high file load. so we need a break
// cs_readunlock(&rdr->lb_stat_lock);
// cs_sleepms(100);
// cs_readlock(&rdr->lb_stat_lock);
// }
}
cs_writeunlock(&rdr->lb_stat_lock);
}
}
fclose(file);
cs_ftime(&te);
int32_t load_time = 1000*(te.time-ts.time)+te.millitm-ts.millitm;
cs_log("loadbalancer: statistic saved %d records to %s in %dms", count, fname, load_time);
}
void save_stat_to_file(int32_t thread)
{
stat_load_save = 0;
if (thread)
start_thread((void*)&save_stat_to_file_thread, "save lb stats");
else
save_stat_to_file_thread();
}
/**
* fail_factor is multiplied to the reopen_time. This function increases the fail_factor
**/
static void inc_fail(READER_STAT *s)
{
if (s->fail_factor <= 0)
s->fail_factor = 1;
else
s->fail_factor *= 2;
}
static READER_STAT *get_add_stat(struct s_reader *rdr, STAT_QUERY *q)
{
if (!rdr->lb_stat) {
rdr->lb_stat = ll_create("lb_stat");
cs_lock_create(&rdr->lb_stat_lock, DEFAULT_LOCK_TIMEOUT, rdr->label);
}
cs_writelock(&rdr->lb_stat_lock);
READER_STAT *s = get_stat_lock(rdr, q, 0);
if (!s) {
if (cs_malloc(&s,sizeof(READER_STAT))) {
s->caid = q->caid;
s->prid = q->prid;
s->srvid = q->srvid;
s->chid = q->chid;
s->ecmlen = q->ecmlen;
s->time_avg = UNDEF_AVG_TIME; //dummy placeholder
s->rc = E_NOTFOUND;
s->last_received = time(NULL);
ll_append(rdr->lb_stat, s);
}
}
if (s->ecm_count < 0)
s->ecm_count=0;
cs_writeunlock(&rdr->lb_stat_lock);
return s;
}
static void housekeeping_stat(int32_t force);
/**
* Adds caid/prid/srvid/ecmlen to stat-list for reader ridx with time/rc
*/
static void add_stat(struct s_reader *rdr, ECM_REQUEST *er, int32_t ecm_time, int32_t rc)
{
if (!rdr || !er || !cfg.lb_mode ||!er->ecmlen || !er->client)
return;
struct s_client *cl = rdr->client;
if (!cl)
return;
READER_STAT *s;
//inc ecm_count if found, drop to 0 if not found:
// rc codes:
// 0 = found +
// 1 = cache1 #
// 2 = cache2 #
// 3 = cacheex #
// 4 = not found -
// 5 = timeout -2
// 6 = sleeping #
// 7 = fake #
// 8 = invalid #
// 9 = corrupt #
// 10= no card #
// 11= expdate #
// 12= disabled #
// 13= stopped #
// 100= unhandled #
// + = adds statistic values
// # = ignored because of duplicate values, temporary failures or softblocks
// - = causes loadbalancer to block this reader for this caid/prov/sid
// -2 = causes loadbalancer to block if happens too often
if (rc == E_NOTFOUND && (uint32_t)ecm_time >= cfg.ctimeout) //Map "not found" to "timeout" if ecm_time>client time out
rc = E_TIMEOUT;
if ((uint32_t)ecm_time >= 3*cfg.ctimeout) //ignore too old ecms
return;
STAT_QUERY q;
get_stat_query(er, &q);
time_t now = time(NULL);
if (rc == E_FOUND) { //found
s = get_add_stat(rdr, &q);
s->rc = E_FOUND;
s->ecm_count++;
s->last_received = now;
s->fail_factor = 0;
//FASTEST READER:
s->time_idx++;
if (s->time_idx >= LB_MAX_STAT_TIME)
s->time_idx = 0;
s->time_stat[s->time_idx] = ecm_time;
calc_stat(s);
//OLDEST READER now set by get best reader!
//USAGELEVEL:
/* Assign a value to rdr->lb_usagelevel_ecmcount,
because no determined value was assigned before. */
if (rdr->lb_usagelevel_ecmcount < 0)
rdr->lb_usagelevel_ecmcount = 0;
rdr->lb_usagelevel_ecmcount++; /* ecm is found so counter should increase */
if ((rdr->lb_usagelevel_ecmcount % cfg.lb_min_ecmcount) == 0) //update every MIN_ECM_COUNT usagelevel:
{
time_t t = (now - rdr->lb_usagelevel_time);
rdr->lb_usagelevel = 1000 / (t<1?1:t);
/* Reset of usagelevel time and counter */
rdr->lb_usagelevel_time = now;
rdr->lb_usagelevel_ecmcount = 0;
}
}
else if (rc < E_NOTFOUND ) { //cache1+2+3
//no increase of statistics here, cachetime is not real time
s = get_stat(rdr, &q);
if (s != NULL)
s->last_received = now;
return;
}
else if (rc == E_NOTFOUND||rc == E_INVALID) { //not found / invalid
//special rcEx codes means temporary problems, so do not block!
//CCcam card can't decode, 0x28=NOK1, 0x29=NOK2
//CCcam loop detection = E2_CCCAM_LOOP
if (er->rcEx >= LB_NONBLOCK_E2_FIRST) {
s = get_stat(rdr, &q);
if (s != NULL)
s->last_received = now; //to avoid timeouts
return;
}
s = get_add_stat(rdr, &q);
if (s->rc == E_NOTFOUND) { //we have already "not found", so we change the time. In some cases (with services/ident set) the failing reader is selected again:
if (ecm_time < 100)
ecm_time = 100;
s->time_avg += ecm_time;
}
if (s->ecm_count > cfg.lb_min_ecmcount) //there were many founds? Do not close, give them another chance
s->ecm_count = 0;
else
s->rc = rc;
inc_fail(s);
s->last_received = now;
//reduce ecm_count step by step
if (!cfg.lb_reopen_mode)
s->ecm_count /= 10;
}
else if (rc == E_TIMEOUT) { //timeout
s = get_add_stat(rdr, &q);
//catch suddenly occuring timeouts and block reader:
// if ((int)(now-s->last_received) < (int)(5*cfg.ctimeout) &&
// s->rc == E_FOUND && s->ecm_count == 0) {
// s->rc = E_TIMEOUT;
// //inc_fail(s); //do not inc fail factor in this case
// }
//reader is longer than 5s connected && not more then 5 pending ecms:
// else if ((cl->login+(int)(2*cfg.ctimeout/1000)) < now && cl->pending < 5 &&
// s->rc == E_FOUND && s->ecm_count == 0) {
// s->rc = E_TIMEOUT;
// inc_fail(s);
// }
// else
if (!s->ecm_count)
s->rc = E_TIMEOUT;
else if (s->rc == E_FOUND && now > s->last_received+1) {
//search for alternate readers. If we have one, block this reader:
int8_t n = 0;
struct s_ecm_answer *ea;
for (ea = er->matching_rdr; ea; ea = ea->next) {
if (ea->reader != rdr && ea->rc < E_NOTFOUND){
n = 1;
break;
}
}
if (n > 0) //We have alternative readers, so we can block this one:
s->rc = E_TIMEOUT;
else { //No other reader found. Inc fail factor and retry lb_min_ecmount times:
inc_fail(s);
if (s->fail_factor > cfg.lb_min_ecmcount) {
s->fail_factor = 0;
s->rc = E_TIMEOUT;
}
}
}
s->last_received = now;
//add timeout to s:
if (ecm_time<=0 || ecm_time > (int)cfg.ctimeout)
ecm_time = cfg.ctimeout;
s->time_idx++;
if (s->time_idx >= LB_MAX_STAT_TIME)
s->time_idx = 0;
s->time_stat[s->time_idx] = ecm_time;
calc_stat(s);
}
else
{
#ifdef WITH_DEBUG
if (rc >= E_FOUND && (D_LB & cs_dblevel)) {
char buf[ECM_FMT_LEN];
format_ecm(er, buf, ECM_FMT_LEN);
cs_debug_mask(D_LB, "loadbalancer: not handled stat for reader %s: rc %d %s time %dms",
rdr->label, rc, buf, ecm_time);
}
#endif
return;
}
housekeeping_stat(0);
#ifdef WITH_DEBUG
if (D_LB & cs_dblevel) {
char buf[ECM_FMT_LEN];
format_ecm(er, buf, ECM_FMT_LEN);
cs_debug_mask(D_LB, "loadbalancer: adding stat for reader %s: rc %d %s time %dms fail %d",
rdr->label, rc, buf, ecm_time, s->fail_factor);
}
#endif
if (cfg.lb_save) {
stat_load_save++;
if (stat_load_save > cfg.lb_save)
save_stat_to_file(1);
}
}
static void reset_stat(STAT_QUERY *q)
{
//cs_debug_mask(D_LB, "loadbalance: resetting ecm count");
struct s_reader *rdr;
cs_readlock(&readerlist_lock);
for (rdr=first_active_reader; rdr ; rdr=rdr->next) {
if (rdr->lb_stat && rdr->client) {
READER_STAT *s = get_stat(rdr, q);
if (s) {
if (s->ecm_count > 0)
s->ecm_count = 1; //not zero, so we know it's decodeable
s->rc = E_FOUND;
s->fail_factor = 0;
}
}
}
cs_readunlock(&readerlist_lock);
}
int32_t clean_stat_by_rc(struct s_reader *rdr, int8_t rc, int8_t inverse)
{
int32_t count = 0;
if (rdr && rdr->lb_stat) {
cs_writelock(&rdr->lb_stat_lock);
READER_STAT *s;
LL_ITER itr = ll_iter_create(rdr->lb_stat);
while ((s = ll_iter_next(&itr))) {
if ((!inverse && s->rc == rc) || (inverse && s->rc != rc)) {
ll_iter_remove_data(&itr);
count++;
}
}
cs_writeunlock(&rdr->lb_stat_lock);
}
return count;
}
int32_t clean_all_stats_by_rc(int8_t rc, int8_t inverse)
{
int32_t count = 0;
LL_ITER itr = ll_iter_create(configured_readers);
struct s_reader *rdr;
while ((rdr = ll_iter_next(&itr))) {
count += clean_stat_by_rc(rdr, rc, inverse);
}
save_stat_to_file(0);
return count;
}
int32_t clean_stat_by_id(struct s_reader *rdr, uint16_t caid, uint32_t prid, uint16_t srvid, uint16_t chid, uint16_t ecmlen)
{
int32_t count = 0;
if (rdr && rdr->lb_stat) {
cs_writelock(&rdr->lb_stat_lock);
READER_STAT *s;
LL_ITER itr = ll_iter_create(rdr->lb_stat);
while ((s = ll_iter_next(&itr))) {
if (s->caid == caid &&
s->prid == prid &&
s->srvid == srvid &&
s->chid == chid &&
s->ecmlen == ecmlen) {
ll_iter_remove_data(&itr);
count++;
break; // because the entry should unique we can left here
}
}
cs_writeunlock(&rdr->lb_stat_lock);
}
return count;
}
static int32_t has_ident(FTAB *ftab, ECM_REQUEST *er) {
if (!ftab || !ftab->filts)
return 0;
int32_t j, k;
for (j = 0; j < ftab->nfilts; j++) {
if (ftab->filts[j].caid) {
if (ftab->filts[j].caid==er->caid) { //caid matches!
int32_t nprids = ftab->filts[j].nprids;
if (!nprids) // No Provider ->Ok
return 1;
for (k = 0; k < nprids; k++) {
uint32_t prid = ftab->filts[j].prids[k];
if (prid == er->prid) { //Provider matches
return 1;
}
}
}
}
}
return 0; //No match!
}
static int32_t get_retrylimit(ECM_REQUEST *er) {
int32_t i;
for (i = 0; i < cfg.lb_retrylimittab.n; i++) {
if (cfg.lb_retrylimittab.caid[i] == er->caid || cfg.lb_retrylimittab.caid[i] == er->caid>>8)
return cfg.lb_retrylimittab.value[i];
}
return cfg.lb_retrylimit;
}
static int32_t get_nbest_readers(ECM_REQUEST *er) {
int32_t i;
for (i = 0; i < cfg.lb_nbest_readers_tab.n; i++) {
if (cfg.lb_nbest_readers_tab.caid[i] == er->caid || cfg.lb_nbest_readers_tab.caid[i] == er->caid>>8)
return cfg.lb_nbest_readers_tab.value[i];
}
return cfg.lb_nbest_readers;
}
static time_t get_reopen_seconds(READER_STAT *s)
{
int32_t max = (INT_MAX / cfg.lb_reopen_seconds);
if (max > 9999) max = 9999;
if (s->fail_factor > max)
s->fail_factor = max;
if (!s->fail_factor)
return cfg.lb_reopen_seconds;
return (time_t)s->fail_factor * (time_t)cfg.lb_reopen_seconds;
}
static void convert_to_beta_int(ECM_REQUEST *er, uint16_t caid_to)
{
unsigned char md5tmp[MD5_DIGEST_LENGTH];
convert_to_beta(er->client, er, caid_to);
// update ecmd5 for store ECM in cache
memcpy(er->ecmd5, MD5(er->ecm+13, er->ecmlen-13, md5tmp), CS_ECMSTORESIZE);
cacheex_update_hash(er);
er->btun = 2; //marked as auto-betatunnel converted. Also for fixing recursive lock in get_cw
}
static void convert_to_nagra_int(ECM_REQUEST *er, uint16_t caid_to)
{
unsigned char md5tmp[MD5_DIGEST_LENGTH];
convert_to_nagra(er->client, er, caid_to);
// update ecmd5 for store ECM in cache
memcpy(er->ecmd5, MD5(er->ecm+3, er->ecmlen-3, md5tmp), CS_ECMSTORESIZE);
cacheex_update_hash(er);
er->btun = 2; //marked as auto-betatunnel converted. Also for fixing recursive lock in get_cw
}
uint16_t get_betatunnel_caid_to(uint16_t caid){
int32_t lbbm = cfg.lb_auto_betatunnel_mode;
if (lbbm <=3) {
if (caid == 0x1801) return 0x1722;
if (caid == 0x1833) return 0x1702;
if (caid == 0x1834) return 0x1722;
if (caid == 0x1835) return 0x1722;
}
if (lbbm >=1) {
if (caid == 0x1702) return 0x1833;
}
if (lbbm == 1 || lbbm == 4 ) {
if (caid == 0x1722) return 0x1801;
} else if (lbbm == 2 || lbbm == 5 ) {
if (caid == 0x1722) return 0x1834;
} else if (lbbm == 3 || lbbm == 6 ) {
if (caid == 0x1722) return 0x1835;
}
return 0;
}
void check_lb_auto_betatunnel_mode(ECM_REQUEST *er) {
int32_t lbbm = cfg.lb_auto_betatunnel_mode;
if ( lbbm == 1 || lbbm == 4) {
er->caid = 0x1801;
} else if ( lbbm == 2 || lbbm == 5) {
er->caid = 0x1834;
} else if ( lbbm == 3 || lbbm == 6) {
er->caid = 0x1835;
}
////no other way to autodetect is 1801,1834 or 1835
}
uint16_t get_rdr_caid(struct s_reader *rdr) {
if (is_network_reader(rdr)) {
return 0; //reader caid is not real caid
} else {
return rdr->caid;
}
}
uint16_t is_betatunnel_caid(uint16_t caid){
if (caid == 0x1702 || caid == 0x1722 || caid == 0x1801 || caid == 0x1833 || caid == 0x1834 || caid == 0x1835) return 1;
return 0;
}
/**
* Gets best reader for caid/prid/srvid/ecmlen.
* Best reader is evaluated by lowest avg time but only if ecm_count > cfg.lb_min_ecmcount (5)
* Also the reader is asked if he is "available"
* returns ridx when found or -1 when not found
*/
void stat_get_best_reader(ECM_REQUEST *er)
{
if (!cfg.lb_mode || cfg.lb_mode==LB_LOG_ONLY)
return;
if (!er->reader_avail)
return;
struct s_reader *rdr;
struct s_ecm_answer *ea;
//preferred card forwarding (CCcam client):
if (cccam_forward_origin_card(er))
return;
STAT_QUERY q;
get_stat_query(er, &q);
//auto-betatunnel: The trick is: "let the loadbalancer decide"!
if (cfg.lb_auto_betatunnel && er->caid >> 8 == 0x18 && er->ecmlen) { //nagra
uint16_t caid_to = get_betatunnel_caid_to(er->caid);
if (caid_to) {
int8_t needs_stats_nagra = 1, needs_stats_beta = 1;
//Clone query parameters for beta:
STAT_QUERY qbeta = q;
qbeta.caid = caid_to;
qbeta.prid = 0;
qbeta.ecmlen = er->ecm[2] + 3 + 10;
int32_t time_nagra = 0;
int32_t time_beta = 0;
int32_t weight;
int32_t ntime;
READER_STAT *stat_nagra = NULL;
READER_STAT *stat_beta = NULL;
//What is faster? nagra or beta?
int8_t isn;
int8_t isb;
int8_t overall_valid = 0;
int8_t overall_nvalid = 0;
for(ea = er->matching_rdr; ea; ea = ea->next) {
isn = 0;
isb = 0;
rdr = ea->reader;
weight = rdr->lb_weight;
if (weight <= 0) weight = 1;
//Check if betatunnel is allowed on this reader:
int8_t valid = chk_ctab(caid_to, &rdr->ctab) //Check caid
&& chk_rfilter2(caid_to, 0, rdr) //Ident
&& chk_srvid_by_caid_prov_rdr(rdr, caid_to, 0) //Services
&& (!get_rdr_caid(rdr) || chk_caid_rdr(rdr,caid_to)); //rdr-caid
if (valid) {
stat_beta = get_stat(rdr, &qbeta);
overall_valid = 1;
}
//else
//stat_beta = NULL;
//Check if nagra is allowed on this reader:
int8_t nvalid = chk_ctab(er->caid, &rdr->ctab)//Check caid
&& chk_rfilter2(er->caid, 0, rdr) //Ident
&& chk_srvid_by_caid_prov_rdr(rdr, er->caid, 0) //Services
&& (!get_rdr_caid(rdr) || chk_caid_rdr(rdr,er->caid)); //rdr-caid
if (nvalid) {
stat_nagra = get_stat(rdr, &q);
overall_nvalid = 1;
}
//calculate nagra data:
if (stat_nagra && stat_nagra->rc == E_FOUND) {
ntime = stat_nagra->time_avg*100/weight;
if (!time_nagra || ntime < time_nagra)
time_nagra = ntime;
}
//calculate beta data:
if (stat_beta && stat_beta->rc == E_FOUND) {
ntime = stat_beta->time_avg*100/weight;
if (!time_beta || ntime < time_beta)
time_beta = ntime;
}
//Uncomplete reader evaluation, we need more stats!
if (stat_nagra){
needs_stats_nagra = 0;
isn = 1;
}
if (stat_beta){
needs_stats_beta = 0;
isb = 1;
}
cs_debug_mask(D_LB, "loadbalancer-betatunnel valid %d, stat_nagra %d, stat_beta %d, (%04X,%04X)", valid, isn, isb ,get_rdr_caid(rdr),caid_to);
}
if (!overall_valid)//we have no valid betatunnel reader also we don't needs stats (converted)
needs_stats_beta = 0;
if (!overall_nvalid) //we have no valid reader also we don't needs stats (unconverted)
needs_stats_nagra = 0;
if (cfg.lb_auto_betatunnel_prefer_beta && time_beta){
time_beta = time_beta * cfg.lb_auto_betatunnel_prefer_beta/100;
if (time_beta <= 0)
time_beta = 1;
}
if (needs_stats_nagra || needs_stats_beta) {
cs_debug_mask(D_LB, "loadbalancer-betatunnel %04X:%04X (%d/%d) needs more statistics...", er->caid, caid_to,
needs_stats_nagra, needs_stats_beta);
if (needs_stats_beta) { //try beta first
convert_to_beta_int(er, caid_to);
get_stat_query(er, &q);
}
}
else if (time_beta && (!time_nagra || time_beta <= time_nagra)) {
cs_debug_mask(D_LB, "loadbalancer-betatunnel %04X:%04X selected beta: n%dms > b%dms", er->caid, caid_to, time_nagra, time_beta);
convert_to_beta_int(er, caid_to);
get_stat_query(er, &q);
}
else {
cs_debug_mask(D_LB, "loadbalancer-betatunnel %04X:%04X selected nagra: n%dms < b%dms", er->caid, caid_to, time_nagra, time_beta);
}
// else nagra is faster or no beta, so continue unmodified
}
} else
if (cfg.lb_auto_betatunnel && (er->caid == 0x1702 || er->caid == 0x1722) && er->ocaid == 0x0000 && er->ecmlen) { //beta
uint16_t caid_to = get_betatunnel_caid_to(er->caid);
if (caid_to) {
int8_t needs_stats_nagra = 1, needs_stats_beta = 1;
//Clone query parameters for beta:
STAT_QUERY qnagra = q;
qnagra.caid = caid_to;
qnagra.prid = 0;
qnagra.ecmlen = er->ecm[2] - 7;
int32_t time_nagra = 0;
int32_t time_beta = 0;
int32_t weight;
int32_t avg_time;
READER_STAT *stat_nagra = NULL;
READER_STAT *stat_beta = NULL;
//What is faster? nagra or beta?
int8_t isb;
int8_t isn;
int8_t overall_valid = 0;
int8_t overall_bvalid = 0;
for(ea = er->matching_rdr; ea; ea = ea->next) {
isb = 0;
isn = 0;
rdr = ea->reader;
weight = rdr->lb_weight;
if (weight <= 0) weight = 1;
//Check if reverse betatunnel is allowed on this reader:
int8_t valid = chk_ctab(caid_to, &rdr->ctab)//, rdr->typ) //Check caid
&& chk_rfilter2(caid_to, 0, rdr) //Ident
&& chk_srvid_by_caid_prov_rdr(rdr, caid_to, 0) //Services
&& (!get_rdr_caid(rdr) || chk_caid_rdr(rdr,caid_to)); //rdr-caid
if (valid) {
stat_nagra = get_stat(rdr, &qnagra);
overall_valid = 1;
}
//else
//stat_nagra = NULL;
//Check if beta is allowed on this reader:
int8_t bvalid = chk_ctab(er->caid, &rdr->ctab)//, rdr->typ) //Check caid