static int32_t __camd35_send(struct s_client *cl, uchar *buf, int32_t buflen, int answer_awaited)
{
int32_t l;
unsigned char rbuf[REQ_SIZE + 15 + 4], *sbuf = rbuf + 4;
if(!cl->udp_fd || !cl->crypted) { return (-1); } //exit if no fd or aes key not set!
//Fix ECM len > 255
if(buflen <= 0)
{ buflen = ((buf[0] == 0) ? (((buf[21] & 0x0f) << 8) | buf[22]) + 3 : buf[1]); }
l = 20 + (((buf[0] == 3) || (buf[0] == 4)) ? 0x34 : 0) + buflen;
memcpy(rbuf, cl->ucrc, 4);
memcpy(sbuf, buf, l);
memset(sbuf + l, 0xff, 15); // set unused space to 0xff for newer camd3's
i2b_buf(4, crc32(0L, sbuf + 20, buflen), sbuf + 4);
l = boundary(4, l);
cs_log_dump_dbg(cl->typ == 'c' ? D_CLIENT : D_READER, sbuf, l, "send %d bytes to %s", l, username(cl));
aes_encrypt_idx(cl->aes_keys, sbuf, l);
int32_t status;
if(cl->is_udp)
{
status = sendto(cl->udp_fd, rbuf, l + 4, 0, (struct sockaddr *)&cl->udp_sa, cl->udp_sa_len);
if(status == -1) { set_null_ip(&SIN_GET_ADDR(cl->udp_sa)); }
}
else
{
status = send(cl->udp_fd, rbuf, l + 4, 0);
if(cl->typ == 'p' && cl->reader)
{
if(status == -1) { network_tcp_connection_close(cl->reader, "can't send"); }
}
else if(cl->typ == 'c')
{
if(status == -1) { cs_disconnect_client(cl); }
}
}
if(status != -1)
{
if(cl->reader && answer_awaited)
{
cl->reader->last_s = time(NULL);
}
if(cl->reader && !answer_awaited)
{
cl->reader->last_s = cl->reader->last_g = time(NULL);
}
cl->last = time(NULL);
}
return status;
}
static void serverip_fn(const char *token, char *value, void *setting, FILE *f) {
IN_ADDR_T srvip = *(IN_ADDR_T *)setting;
if (value) {
if (strlen(value) == 0) {
set_null_ip((IN_ADDR_T *)setting);
} else {
cs_inet_addr(value, (IN_ADDR_T *)setting);
}
return;
}
if (IP_ISSET(srvip) || cfg.http_full_cfg)
fprintf_conf(f, token, "%s\n", cs_inet_ntoa(srvip));
}
/* Resolves the ip of the hostname of the specified account and saves it in account->dynip.
If the hostname is not configured, the ip is set to 0. */
static void cs_user_resolve(struct s_auth *account)
{
if (account->dyndns) {
IN_ADDR_T lastip;
IP_ASSIGN(lastip, account->dynip);
cs_resolve(account->dyndns, &account->dynip, NULL, NULL);
if (!IP_EQUAL(lastip, account->dynip)) {
cs_log("%s: resolved ip=%s", account->dyndns, cs_inet_ntoa(account->dynip));
}
} else {
set_null_ip(&account->dynip);
}
}
/************************************************************************************************************************
* client functions
*************************************************************************************************************************/
int pandora_client_init(struct s_client *cl) {
static struct sockaddr_in loc_sa;
int16_t p_proto;
char ptxt[16];
struct s_reader *rdr = cl->reader;
uchar md5tmp[MD5_DIGEST_LENGTH];
cl->pfd = 0;
if (rdr->r_port <= 0) {
cs_log("invalid port %d for server %s", rdr->r_port, rdr->device);
return (1);
}
p_proto = IPPROTO_UDP;
set_null_ip(&cl->ip);
memset((char *) &loc_sa, 0, sizeof(loc_sa));
loc_sa.sin_family = AF_INET;
if (IP_ISSET(cfg.srvip))
IP_ASSIGN(SIN_GET_ADDR(loc_sa), cfg.srvip);
else
loc_sa.sin_addr.s_addr = INADDR_ANY;
loc_sa.sin_port = htons(rdr->l_port);
if ((cl->udp_fd = socket(PF_INET, SOCK_DGRAM, p_proto)) < 0) {
cs_log("Socket creation failed (errno=%d)", errno);
return 1;
}
int32_t opt = 1;
setsockopt(cl->udp_fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof (opt));
#ifdef SO_REUSEPORT
setsockopt(cl->udp_fd, SOL_SOCKET, SO_REUSEPORT, (void *)&opt, sizeof(opt));
#endif
set_socket_priority(cl->udp_fd, cfg.netprio);
if (rdr->l_port > 0) {
if (bind(cl->udp_fd, (struct sockaddr *) &loc_sa, sizeof(loc_sa)) < 0) {
cs_log("bind failed (errno=%d)", errno);
close(cl->udp_fd);
return (1);
}
snprintf(ptxt, sizeof(ptxt), ", port=%d", rdr->l_port);
} else
ptxt[0] = '\0';
memcpy(cl->pand_md5_key, MD5((uchar*)rdr->r_pwd, strlen(rdr->r_pwd), md5tmp), 16);
cl->crypted = 1;
//cl->grp = 0xFFFFFFFF;
//rdr->caid[0] = rdr->ctab.caid[0];
cl->pand_send_ecm = rdr->pand_send_ecm;
memset((char *) &cl->udp_sa, 0, sizeof(cl->udp_sa));
#ifdef IPV6SUPPORT
((struct sockaddr_in *)(&cl->udp_sa))->sin_family = AF_INET;
((struct sockaddr_in *)(&cl->udp_sa))->sin_port = htons((u_short) rdr->r_port);
#else
cl->udp_sa.sin_family = AF_INET;
cl->udp_sa.sin_port = htons((u_short) rdr->r_port);
#endif
cs_log("proxy %s:%d pandora %s (%s)", rdr->device, rdr->r_port, rdr->pand_send_ecm?"with ECM support":"", ptxt );
cl->pfd = cl->udp_fd;
//fcntl(cl->udp_fd, F_SETFL, fcntl(cl->udp_fd, F_GETFL, 0) | O_NONBLOCK); //!!!!!
return (0);
}
