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Copy pathmodule-newcamd.c
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module-newcamd.c
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#define MODULE_LOG_PREFIX "newcamd"
#include "globals.h"
#ifdef MODULE_NEWCAMD
#include "cscrypt/des.h"
#include "cscrypt/md5.h"
#include "module-newcamd.h"
#include "module-newcamd-des.h"
#include "oscam-array.h"
#include "oscam-conf-chk.h"
#include "oscam-chk.h"
#include "oscam-client.h"
#include "oscam-ecm.h"
#include "oscam-emm.h"
#include "oscam-net.h"
#include "oscam-reader.h"
#include "oscam-string.h"
#include "oscam-time.h"
const int32_t CWS_NETMSGSIZE = 1024; // csp 0.8.9 (default: 400). This is CWS_NETMSGSIZE. The old default was 240
int32_t portion_sid_num = 0;
#define NCD_CLIENT_ID 0x8888
#define CWS_FIRSTCMDNO 0xE0
typedef enum
{
MSG_CLIENT_2_SERVER_LOGIN = CWS_FIRSTCMDNO,
MSG_CLIENT_2_SERVER_LOGIN_ACK,
MSG_CLIENT_2_SERVER_LOGIN_NAK,
MSG_CARD_DATA_REQ,
MSG_CARD_DATA,
MSG_SERVER_2_CLIENT_NAME,
MSG_SERVER_2_CLIENT_NAME_ACK,
MSG_SERVER_2_CLIENT_NAME_NAK,
MSG_SERVER_2_CLIENT_LOGIN,
MSG_SERVER_2_CLIENT_LOGIN_ACK,
MSG_SERVER_2_CLIENT_LOGIN_NAK,
MSG_ADMIN,
MSG_ADMIN_ACK,
MSG_ADMIN_LOGIN,
MSG_ADMIN_LOGIN_ACK,
MSG_ADMIN_LOGIN_NAK,
MSG_ADMIN_COMMAND,
MSG_ADMIN_COMMAND_ACK,
MSG_ADMIN_COMMAND_NAK,
MSG_KEEPALIVE = CWS_FIRSTCMDNO + 0x1D,
MSG_SERVER_2_CLIENT_OSD = 0xD1,
MSG_SERVER_2_CLIENT_ALLCARDS = 0xD2,
MSG_SERVER_2_CLIENT_ADDCARD = 0xD3,
MSG_SERVER_2_CLIENT_REMOVECARD = 0xD4,
MSG_SERVER_2_CLIENT_CHANGE_KEY = 0xD5,
MSG_SERVER_2_CLIENT_GET_VERSION = 0xD6,
MSG_SERVER_2_CLIENT_ADDSID = 0xD7,
MSG_CLIENT_2_SERVER_CARDDISCOVER = 0xD8
} net_msg_type_t;
typedef enum
{
COMMTYPE_CLIENT,
COMMTYPE_SERVER
} comm_type_t;
typedef struct custom_data
{
uint16_t sid;
uint16_t caid;
int32_t provid;
uint8_t x;
} custom_data_t;
#define REQ_SIZE 2
static int32_t network_message_send(int32_t handle, uint16_t *netMsgId, uint8_t *buffer, int32_t len,
uint8_t *deskey, comm_type_t commType, uint16_t sid, custom_data_t *cd)
{
uint8_t netbuf[CWS_NETMSGSIZE];
int32_t head_size;
struct s_client *cl = cur_client();
head_size = (cl->ncd_proto == NCD_524) ? 8 : 12;
if(len < 3 || len + head_size > CWS_NETMSGSIZE || handle < 0)
{
return -1;
}
buffer[1] = (buffer[1] & 0xF0) | (((len - 3) >> 8) & 0x0F);
buffer[2] = (len - 3) & 0xFF;
memcpy(netbuf + head_size, buffer, len);
len += head_size;
if(netMsgId)
{
if(commType == COMMTYPE_CLIENT)
{
(*netMsgId)++;
}
netbuf[2] = (*netMsgId) >> 8;
netbuf[3] = (*netMsgId) & 0xFF;
}
else
{
netbuf[2] = 0;
netbuf[3] = 0;
}
memset(netbuf + 4, 0, (cl->ncd_proto == NCD_524) ? 4 : 8);
if(sid)
{
if(cl->reader && cl->reader->ncd_disable_server_filt
&& sid != NCD_CLIENT_ID && cl->ncd_proto != NCD_524) // mgclient send header
{
memcpy(netbuf + 4, cl->ncd_header + 4, 7);
}
netbuf[(cl->ncd_proto == NCD_524) ? 6 : 4] = (uint8_t)(sid >> 8); // sid
netbuf[(cl->ncd_proto == NCD_524) ? 7 : 5] = (uint8_t)(sid);
}
//if((!ncd_proto == NCD_524) && (buffer[0] >= 0xD1) && (buffer[0] <= 0xD8)) // extended proto for mg
//{
// cs_log_dbg(D_CLIENT, "newcamd: extended: msg");
if(cd)
{
cs_log_dbg(D_CLIENT, "newcamd: has cd");
netbuf[4] = cd->sid >> 8;
netbuf[5] = cd->sid & 0xFF;
netbuf[6] = cd->caid >> 8;
netbuf[7] = cd->caid & 0xFF;
netbuf[8] = (cd->provid >> 16) & 0xFF;
netbuf[9] = (cd->provid >> 8) & 0xFF;
netbuf[10] = cd->provid & 0xFF;
}
//}
if(NCD_525 == cl->ncd_proto && cfg.ncd_mgclient && MSG_CLIENT_2_SERVER_LOGIN_ACK == buffer[0])
{
netbuf[4] = 0x6E; // From ExtNewcamSession.java CSP line 65-66 getLoginOkMsg()
netbuf[5] = 0x73;
netbuf[11] = 0x14;
}
if(NCD_525 == cl->ncd_proto && MSG_SERVER_2_CLIENT_ADDSID == buffer[0])
{
netbuf[11] = 0x14;
}
//if(buffer[0] == MSG_CLIENT_2_SERVER_LOGIN && cur_client()->reader->ncd_disable_server_filt)
//{
// netbuf[11] = 0x11; // From ChameleonCwsConnector.java CSP line 59-61 run()
//}
netbuf[0] = (len - 2) >> 8;
netbuf[1] = (len - 2) & 0xFF;
cs_log_dump_dbg(D_CLIENT, netbuf, len, "send %d bytes to %s", len, remote_txt());
if((len = nc_des_encrypt(netbuf, len, deskey)) < 0)
{
return -1;
}
netbuf[0] = (len - 2) >> 8;
netbuf[1] = (len - 2) & 0xFF;
return send(handle, netbuf, len, 0);
}
static int32_t send_sid_list(void)
{
struct s_client *cl = cur_client();
if(1 != cl->ftab.nfilts || !cl->sidtabs.no || !cfg.ncd_ptab.ports[cl->port_idx].ncd)
{
cs_log("SID list will not be send to mgcamd client.");
return 0;
}
uint8_t mbuf[CWS_NETMSGSIZE];
int32_t n = 0, nr = 0, i = 0, sid_num = 0, portion_num = 0;
SIDTAB *sidtab = 0;
custom_data_t cd;
cs_log_dbg(D_TRACE, "Send SID list to mgcamd client.");
memset(&cd, 0, sizeof(cd));
FILTER *pfilts = cfg.ncd_ptab.ports[cl->port_idx].ncd->ncd_ftab.filts;
//memset(mbuf, 0, sizeof(mbuf)); // not nessesery
for(nr = 0, sidtab = cfg.sidtab; sidtab; sidtab = sidtab->next, nr++)
{
if((cl->sidtabs.no & ((SIDTABBITS)1 << nr)) && (sidtab->num_caid | sidtab->num_provid | sidtab->num_srvid))
{
for(n = 0; n < pfilts[0].nprids; n++)
{
if(chk_srvid_match_by_caid_prov(pfilts[0].caid, pfilts[0].prids[n], sidtab))
{
for(i = 0; i < sidtab->num_srvid; i++)
{
// First SID goes to header
if(0 == portion_sid_num)
{
cd.sid = sidtab->srvid[i]; // first sid
cd.caid = cfg.ncd_ptab.ports[cl->port_idx].s_port; // assigned port
cd.provid = 0x1; // mark as deny
}
mbuf[portion_sid_num * 3] = (uint8_t)(sidtab->srvid[i] >> 8);
mbuf[portion_sid_num * 3 + 1] = (uint8_t)(sidtab->srvid[i] & 0xFF);
mbuf[portion_sid_num * 3 + 2] = 0x1; // mark as deny
++sid_num;
++portion_sid_num;
if(portion_sid_num >= 50)
{
++portion_num;
cs_log_dump_dbg(0x0800, mbuf, (portion_sid_num) * 3, "Portion %d contains %d SIDs",
portion_num, portion_sid_num);
mbuf[0] = MSG_SERVER_2_CLIENT_ADDSID;
mbuf[1] = 0x00;
mbuf[2] = 0x00;
network_message_send(cl->udp_fd, &cl->ncd_msgid, mbuf, portion_sid_num * 3,
cl->ncd_skey, COMMTYPE_SERVER, 0, &cd);
portion_sid_num = 0;
}
}
break;
}
}
}
}
if(portion_sid_num)
{
++portion_num;
cs_log_dump_dbg(0x0800, mbuf, (portion_sid_num) * 3, "Portion %d contains %d SIDs",
portion_num, portion_sid_num);
mbuf[0] = MSG_SERVER_2_CLIENT_ADDSID;
mbuf[1] = 0x0;
mbuf[2] = 0x0;
network_message_send(cl->udp_fd, &cl->ncd_msgid, mbuf, portion_sid_num * 3,
cl->ncd_skey, COMMTYPE_SERVER, 0, &cd);
portion_sid_num = 0;
}
cs_log("%d deny SIDs in the %d messages were sent to the client.", sid_num, portion_num);
return sid_num;
}
static int32_t network_message_receive(int32_t handle, uint16_t *netMsgId, uint8_t *buffer,
uint8_t *deskey, comm_type_t commType)
{
int32_t len, ncd_off, msgid;
uint8_t netbuf[CWS_NETMSGSIZE];
int32_t returnLen;
struct s_client *cl = cur_client();
if(!buffer || handle < 0)
{
return -1;
}
len = cs_recv(handle, netbuf, 2, 0);
cs_log_dbg(D_CLIENT, "nmr(): len=%d, errno=%d", len, (len == -1) ? errno : 0);
if(!len)
{
cs_log_dbg(D_CLIENT, "nmr: 1 return 0");
if(commType == COMMTYPE_CLIENT)
{
network_tcp_connection_close(cl->reader, "receive error1");
}
else
{
cs_disconnect_client(cl);
}
return 0;
}
if(len != 2)
{
cs_log_dbg(D_CLIENT, "nmr: len!=2");
if(commType == COMMTYPE_CLIENT)
{
network_tcp_connection_close(cl->reader, "receive error2");
}
else
{
cs_disconnect_client(cl);
}
return -1;
}
if(((netbuf[0] << 8) | netbuf[1]) > CWS_NETMSGSIZE - 2)
{
cs_log_dbg(D_CLIENT, "nmr: received data len=%d longer than CWS_NETMSGSIZE=%d",
((netbuf[0] << 8) | netbuf[1]), CWS_NETMSGSIZE);
cs_log_dbg(D_CLIENT, "nmr: 1 return -1");
return -1;
}
len = cs_recv(handle, netbuf + 2, (netbuf[0] << 8) | netbuf[1], 0);
if(!len)
{
cs_log_dbg(D_CLIENT, "nmr: 2 return 0");
return 0;
}
if(len != ((netbuf[0] << 8) | netbuf[1]))
{
cs_log_dbg(D_CLIENT, "nmr: 2 return -1");
return -1;
}
len += 2;
if((len = nc_des_decrypt(netbuf, len, deskey)) < 11) // 15(newcamd525) or 11 ???
{
cs_log_dbg(D_CLIENT, "nmr: can't decrypt, invalid des key?");
cs_sleepms(2000);
return -1;
}
//cs_log_dump_dbg(D_CLIENT, netbuf, len, "nmr: decrypted data, len=%d", len);
msgid = (netbuf[2] << 8) | netbuf[3];
if(cl->ncd_proto == NCD_AUTO)
{
// auto detect
int32_t l5 = (((netbuf[13] & 0x0F) << 8) | netbuf[14]) + 3;
int32_t l4 = (((netbuf[9] & 0x0F) << 8) | netbuf[10]) + 3;
if((l5 <= len - 12) && ((netbuf[12] & 0xF0) == 0xE0 || (netbuf[12] & 0xF0) == 0x80))
{
cl->ncd_proto = NCD_525;
}
else if((l4 <= len - 8) && ((netbuf[8] & 0xF0) == 0xE0 || (netbuf[9] & 0xF0) == 0x80))
{
cl->ncd_proto = NCD_524;
}
else
{
cs_log_dbg(D_CLIENT, "nmr: 4 return -1");
return -1;
}
cs_log_dbg(D_CLIENT, "nmr: autodetect: newcamd52%d used", (cl->ncd_proto == NCD_525) ? 5 : 4);
}
ncd_off = (cl->ncd_proto == NCD_525) ? 4 : 0;
returnLen = (((netbuf[9 + ncd_off] & 0x0F) << 8) | netbuf[10 + ncd_off]) + 3;
if(returnLen > (len - (8 + ncd_off)))
{
cs_log_dbg(D_CLIENT, "nmr: 4 return -1");
return -1;
}
//cs_log_dump_dbg(D_CLIENT, netbuf, len, "nmr: decrypted data");
if(netMsgId)
{
switch(commType)
{
case COMMTYPE_SERVER:
*netMsgId = msgid;
break;
case COMMTYPE_CLIENT:
//if(*netMsgId != ((netbuf[2] << 8) | netbuf[3]))
//{
cs_log_dbg(D_CLIENT, "nmr: netMsgId=%d, from server=%d, ", *netMsgId, msgid);
//return -2;
//}
break;
default:
cs_log_dbg(D_CLIENT, "nmr: 5 return -1");
return -1;
break;
}
}
switch(commType)
{
case COMMTYPE_SERVER:
memcpy(cl->ncd_header, netbuf, (8 + ncd_off));
buffer[0] = (cl->ncd_proto == NCD_525) ? netbuf[4] : netbuf[6]; // sid
buffer[1] = (cl->ncd_proto == NCD_525) ? netbuf[5] : netbuf[7];
break;
case COMMTYPE_CLIENT:
memcpy(cl->ncd_header, netbuf, (8 + ncd_off));
buffer[0] = netbuf[2]; // msgid
buffer[1] = netbuf[3];
break;
}
memcpy(buffer + 2, netbuf + (8 + ncd_off), returnLen);
return returnLen + 2;
}
static void network_cmd_no_data_send(int32_t handle, uint16_t *netMsgId, net_msg_type_t cmd,
uint8_t *deskey, comm_type_t commType)
{
uint8_t buffer[3];
buffer[0] = cmd;
buffer[1] = 0;
buffer[2] = 0;
network_message_send(handle, netMsgId, buffer, 3, deskey, commType, 0, NULL);
}
static int32_t network_cmd_no_data_receive(int32_t handle, uint16_t *netMsgId, uint8_t *deskey,
comm_type_t commType)
{
uint8_t buffer[CWS_NETMSGSIZE];
if(network_message_receive(handle, netMsgId, buffer, deskey, commType) != 3 + 2)
{
return -1;
}
return buffer[2];
}
void newcamd_reply_ka(void)
{
struct s_client *cl = cur_client();
if(!cl)
{
return;
}
if(!cl->udp_fd)
{
cs_log_dbg(D_CLIENT, "invalid client fd=%d", cl->udp_fd);
return;
}
cs_log_dbg(D_CLIENT, "send keepalive to client fd=%d", cl->udp_fd);
if(cl->reader)
{
cl->reader->last_s = time((time_t *)0);
}
network_cmd_no_data_send(cl->udp_fd, &cl->ncd_msgid, MSG_KEEPALIVE, cl->ncd_skey, COMMTYPE_SERVER);
}
static int32_t connect_newcamd_server(void)
{
int32_t i;
uint8_t buf[CWS_NETMSGSIZE];
uint8_t keymod[14];
uint8_t key[16];
int32_t handle = 0;
uint32_t idx;
uint8_t passwdcrypt[120];
uint8_t login_answer;
int32_t bytes_received;
struct s_client *cl = cur_client();
if(cl->reader->device[0] == 0 || cl->reader->r_pwd[0] == 0
|| cl->reader->r_usr[0] == 0 || cl->reader->r_port == 0)
{
return -5;
}
// 1. Connect
handle = network_tcp_connection_open(cl->reader);
if(handle < 0)
{
return -1;
}
// 2. Get init sequence
cl->ncd_msgid = 0;
if(read(handle, keymod, sizeof(keymod)) != sizeof(keymod))
{
cs_log("server does not return 14 bytes");
network_tcp_connection_close(cl->reader, "connect error");
return -2;
}
cs_log_dump_dbg(D_CLIENT, keymod, sizeof(cl->reader->ncd_key), "server init sequence:");
nc_des_login_key_get(keymod, cl->reader->ncd_key, sizeof(cl->reader->ncd_key), key);
// 3. Send login info
idx = 3;
buf[0] = MSG_CLIENT_2_SERVER_LOGIN;
buf[1] = 0;
cs_strncpy((char *)buf + idx, cl->reader->r_usr, sizeof(buf) - idx);
__md5_crypt(cl->reader->r_pwd, "$1$abcdefgh$", (char *)passwdcrypt);
idx += cs_strlen(cl->reader->r_usr) + 1;
cs_strncpy((char *)buf + idx, (const char *)passwdcrypt, sizeof(buf) - idx);
network_message_send(handle, 0, buf, idx + cs_strlen((char *)passwdcrypt) + 1, key,
COMMTYPE_CLIENT, NCD_CLIENT_ID, NULL);
// 3.1 Get login answer
login_answer = network_cmd_no_data_receive(handle, &cl->ncd_msgid, key, COMMTYPE_CLIENT);
if(login_answer == MSG_CLIENT_2_SERVER_LOGIN_NAK)
{
cs_log("login failed for user '%s'", cl->reader->r_usr);
network_tcp_connection_close(cl->reader, "login error1");
return -3;
}
if(login_answer != MSG_CLIENT_2_SERVER_LOGIN_ACK)
{
cs_log("expected MSG_CLIENT_2_SERVER_LOGIN_ACK (%02X), received %02X",
MSG_CLIENT_2_SERVER_LOGIN_ACK, login_answer);
network_tcp_connection_close(cl->reader, "login error2");
return -3;
}
// 3.2 Set connection info
cl->reader->tcp_connected = 1;
cl->crypted = 1;
// 4. Send MSG_CARD_DATE_REQ
nc_des_login_key_get(cl->reader->ncd_key, passwdcrypt, cs_strlen((char *)passwdcrypt), key);
network_cmd_no_data_send(handle, &cl->ncd_msgid, MSG_CARD_DATA_REQ, key, COMMTYPE_CLIENT);
bytes_received = network_message_receive(handle, &cl->ncd_msgid, buf, key, COMMTYPE_CLIENT);
if(bytes_received < 16 || buf[2] != MSG_CARD_DATA)
{
cs_log("expected MSG_CARD_DATA (%02X), received %02X", MSG_CARD_DATA, buf[2]);
network_tcp_connection_close(cl->reader, "receive error");
return -4;
}
// 5. Parse CAID and PROVID(s)
cl->reader->caid = (uint16_t)((buf[6] << 8) | buf[7]);
// handle special serial format in newcamd. See newcamd_auth_client
newcamd_to_hexserial(buf + 10, cl->reader->hexserial, cl->reader->caid);
cs_log("Newcamd Server: %s:%d - UserID: %i", cl->reader->device, cl->reader->r_port, buf[3 + 2]);
cs_log("CAID: %04X - UA: %02X%02X%02X%02X%02X%02X%02X%02X - Provider # %i",
cl->reader->caid, cl->reader->hexserial[0], cl->reader->hexserial[1], cl->reader->hexserial[2],
cl->reader->hexserial[3], cl->reader->hexserial[4], cl->reader->hexserial[5], cl->reader->hexserial[6],
cl->reader->hexserial[7], buf[14 + 2]);
cl->reader->nprov = buf[14 + 2];
memset(cl->reader->prid, 0x00, sizeof(cl->reader->prid));
for(i = 0; i < cl->reader->nprov; i++)
{
if(caid_is_betacrypt(cl->reader->caid) || caid_is_irdeto(cl->reader->caid))
{
memcpy(&cl->reader->prid[i], buf + 22 + 2 + 11 * i, 4);
}
else
{
cl->reader->prid[i][1] = buf[15 + 2 + 11 * i];
cl->reader->prid[i][2] = buf[16 + 2 + 11 * i];
cl->reader->prid[i][3] = buf[17 + 2 + 11 * i];
}
memcpy(&cl->reader->sa[i], buf + 22 + 2 + 11 * i, 4); // the 4 first bytes are not read
cs_log("Provider ID: %02X%02X%02X - SA: %02X%02X%02X%02X",
cl->reader->prid[i][1], cl->reader->prid[i][2], cl->reader->prid[i][3], cl->reader->sa[i][0],
cl->reader->sa[i][1], cl->reader->sa[i][2], cl->reader->sa[i][3]);
}
memcpy(cl->reader->ncd_skey, key, 16);
// 6. Set card inserted
cl->reader->tcp_connected = 2;
cl->reader->card_status = CARD_INSERTED;
cl->reader->last_g = cl->reader->last_s = time((time_t *)0);
// Only after connect() on cl->udp_fd (Linux)
cl->pfd = cl->udp_fd;
if(cl->reader->ncd_disable_server_filt) // act like mgclient
{
network_cmd_no_data_send(handle, &cl->ncd_msgid, MSG_SERVER_2_CLIENT_GET_VERSION, key, COMMTYPE_CLIENT);
}
return 0;
}
static int32_t newcamd_connect(void)
{
struct s_client *cl = cur_client();
if(cl->reader->tcp_connected < 2 && connect_newcamd_server() < 0)
{
return 0;
}
if(!cl->udp_fd)
{
return 0;
}
return 1;
}
static int32_t newcamd_send(uint8_t *buf, int32_t ml, uint16_t sid)
{
struct s_client *cl = cur_client();
if(!newcamd_connect())
{
return -1;
}
return network_message_send(cl->udp_fd, &cl->ncd_msgid, buf, ml,
cl->reader->ncd_skey, COMMTYPE_CLIENT, sid, NULL);
}
static int32_t newcamd_recv(struct s_client *client, uint8_t *buf, int32_t UNUSED(l))
{
int32_t rc, rs;
if(client->typ == 'c')
{
rs = network_message_receive(client->udp_fd, &client->ncd_msgid, buf,
client->ncd_skey, COMMTYPE_SERVER);
}
else
{
if(!client->udp_fd)
{
return (-1);
}
rs = network_message_receive(client->udp_fd, &client->ncd_msgid, buf,
client->reader->ncd_skey, COMMTYPE_CLIENT);
}
if(rs < 5)
{
rc = -1;
}
else
{
rc = rs;
}
cs_log_dump_dbg(D_CLIENT, buf, rs, "received %d bytes from %s", rs, remote_txt());
client->last = time((time_t *) 0);
if(rc == -1)
{
if(rs > 0)
{
cs_log("packet is too small (%d bytes)", rs);
}
else
{
cs_log("Connection closed to %s", remote_txt());
}
}
return (rc);
}
static void mk_user_au_ftab(struct s_reader *aureader, FILTER *filt)
{
int32_t i, j, found;
FILTER old_filter;
memcpy(&old_filter, filt, sizeof(old_filter));
memset(filt, 0, sizeof(*filt));
filt->caid = aureader->caid;
if(filt->caid == 0)
{
filt->caid = old_filter.caid;
}
for(i = 0; i < aureader->nprov && filt->nprids < CS_MAXPROV; i++)
{
filt->prids[filt->nprids++] = b2i(3, &aureader->prid[i][1]);
}
for(i = 0; i < old_filter.nprids && filt->nprids < CS_MAXPROV; i++)
{
for(j = found = 0; (!found) && (j < filt->nprids); j++)
{
if(old_filter.prids[i] == filt->prids[j])
{
found = 1;
}
}
if(!found)
{
filt->prids[filt->nprids++] = old_filter.prids[i];
}
}
}
static void mk_user_ftab(FILTER *filt)
{
int32_t port_idx, i, j, k, c;
struct s_client *cl = cur_client();
memset(filt, 0, sizeof(*filt));
port_idx = cl->port_idx;
if(!cfg.ncd_ptab.ports[port_idx].ncd)
{
return;
}
FILTER *psfilt = &cfg.ncd_ptab.ports[port_idx].ncd->ncd_ftab.filts[0];
// 1. CAID
// search server CAID in client CAID
for(c = i = 0; i < cl->ctab.ctnum; i++)
{
CAIDTAB_DATA *d = &cl->ctab.ctdata[i];
int32_t ctab_caid = d->caid & d->mask;
if(ctab_caid)
{
c++;
}
if(psfilt->caid == ctab_caid)
{
filt->caid = ctab_caid;
break;
}
}
if(c && !filt->caid)
{
cs_log("no valid CAID found in CAID for user '%s'", cl->account->usr);
return;
}
// search CAID in client IDENT
cs_log_dbg(D_CLIENT, "client[%8lX].%s nfilts=%d, filt.caid=%04X", (unsigned long)pthread_self(),
cl->account->usr, cl->ftab.nfilts, filt->caid);
if(!filt->caid && cl->ftab.nfilts)
{
int32_t fcaids;
for(i = fcaids = 0; i < cl->ftab.nfilts; i++)
{
uint16_t ucaid = cl->ftab.filts[i].caid;
if(ucaid)
{
fcaids++;
}
if(ucaid && psfilt->caid == ucaid)
{
filt->caid = ucaid;
break;
}
}
if(fcaids == cl->ftab.nfilts && !filt->caid)
{
cs_log("no valid CAID found in IDENT for user '%s'", cl->account->usr);
//cs_disconnect_client();
return;
}
}
// empty client CAID - use server CAID
if(!filt->caid)
{
filt->caid = psfilt->caid;
}
// 2. PROVID
if(!cl->ftab.nfilts)
{
int32_t add;
for(i = 0; i < psfilt->nprids && filt->nprids < CS_MAXPROV; i++)
{
// use server PROVID(s) (and only those which are in user's groups)
add = 0;
struct s_reader *rdr;
for(rdr = first_active_reader; rdr ; rdr = rdr->next)
{
if(rdr->grp & cl->grp)
{
if(!rdr->ftab.nfilts)
{
if(is_network_reader(rdr))
{
add = 1;
}
for(j = 0; !add && j < rdr->nprov; j++)
{
if(b2i(3, &rdr->prid[j][1]) == psfilt->prids[i])
{
add = 1;
}
}
}
else
{
for(j = 0; !add && j < rdr->ftab.nfilts; j++)
{
uint32_t rcaid = rdr->ftab.filts[j].caid;
if(!rcaid || rcaid == filt->caid)
{
for(k = 0; !add && k < rdr->ftab.filts[j].nprids; k++)
{
if(rdr->ftab.filts[j].prids[k] == psfilt->prids[i])
{
add = 1;
}
}
}
}
}
}
}
if(add)
{
filt->prids[filt->nprids++] = psfilt->prids[i];
}
}
memcpy(filt, psfilt, sizeof(*filt));
return;
}
// search in client IDENT
for(j = 0; j < cl->ftab.nfilts; j++)
{
uint32_t ucaid = cl->ftab.filts[j].caid;
cs_log_dbg(D_CLIENT, "client caid %d: %04X", j, ucaid);
if(!ucaid || ucaid == filt->caid)
{
for(i = 0; i < psfilt->nprids && filt->nprids < CS_MAXPROV; i++)
{
cs_log_dbg(D_CLIENT, "search server provid %d: %06X", i, psfilt->prids[i]);
if(cl->ftab.filts[j].nprids)
{
for(k = 0; k < cl->ftab.filts[j].nprids && filt->nprids < CS_MAXPROV; k++)
{
if(cl->ftab.filts[j].prids[k] == psfilt->prids[i])
{
filt->prids[filt->nprids++] = cl->ftab.filts[j].prids[k];
}
}
}
else
{
filt->prids[filt->nprids++] = psfilt->prids[i];
// allow server PROVID(s) if no PROVID(s) specified in IDENT
}
}
}
}
if(!filt->nprids)
{
cs_log("no valid PROVID(s) found in CAID for user '%s'", cl->account->usr);
//cs_disconnect_client();
}
}
static int8_t newcamd_auth_client(IN_ADDR_T ip, uint8_t *deskey)
{
int32_t i, ok, rc, sid_list;
uint8_t *usr = NULL, *pwd = NULL;
struct s_auth *account;
uint8_t buf[14];
uint8_t key[16];
uint8_t passwdcrypt[120];
struct s_reader *aureader = NULL, *rdr = NULL;
struct s_client *cl = cur_client();
uint8_t mbuf[CWS_NETMSGSIZE];
sid_list = 0;
ok = cfg.ncd_allowed ? check_ip(cfg.ncd_allowed, ip) : 1;
if(!ok)
{
cs_auth_client(cl, (struct s_auth *)0, NULL);
return -1;
}
// make random 14 bytes
get_random_bytes(buf, 14);
// send init sequence
send(cl->udp_fd, buf, 14, 0);
nc_des_login_key_get(buf, deskey, 14, key);
memcpy(cl->ncd_skey, key, 16);
cl->ncd_msgid = 0;
i = process_input(mbuf, sizeof(mbuf), cfg.cmaxidle);
if(i > 0)
{
if(mbuf[2] != MSG_CLIENT_2_SERVER_LOGIN)
{
cs_log_dbg(D_CLIENT, "expected MSG_CLIENT_2_SERVER_LOGIN (%02X), received %02X",
MSG_CLIENT_2_SERVER_LOGIN, mbuf[2]);
return -1;
}
usr = mbuf + 5;
pwd = usr + cs_strlen((char *)usr) + 1;
}
else
{
cs_log_dbg(D_CLIENT, "bad client login request");
return -1;
}
cl->ncd_client_id = (mbuf[0] << 8) | mbuf[1];
const char *client_name = newcamd_get_client_name(cl->ncd_client_id);
#if defined(TCP_KEEPIDLE)
if(cl->ncd_client_id == 0x4453) // DiabloWifi has problems with TCPKeepAlive
{
int32_t flag = 600;
// send first keepalive packet after 600 seconds of
// last package received (keepalive packets included)
if(setsockopt(cl->udp_fd, IPPROTO_TCP, TCP_KEEPIDLE, &flag, sizeof(flag)) && errno != EBADF)
{
cs_log("Setting TCP_KEEPIDLE failed, errno=%d, %s", errno, strerror(errno));
}
else
{
cs_log("WARNING: Setting TCP_KEEPIDLE to 10 minutes for bugged DiabloWifi. Note that this might lead to not detected broken connections or multiple connections.");
}
}
#endif
if(cl->ncd_proto == NCD_525 && 0x6D == mbuf[0] && 0x67 == mbuf[1] && 0x11 == cl->ncd_header[11])
{
sid_list = 1;
}
for(ok = 0, account = cfg.account; usr && account && (!ok); account = account->next)
{
cs_log_dbg(D_CLIENT, "account->usr=%s", account->usr);
if(strcmp((char *)usr, account->usr) == 0)
{
__md5_crypt(ESTR(account->pwd), "$1$abcdefgh$", (char *)passwdcrypt);
cs_log_dbg(D_CLIENT, "account->pwd=%s", passwdcrypt);
if(strcmp((char *)pwd, (const char *)passwdcrypt) == 0)
{
cl->crypted = 1;
char e_txt[20];
snprintf(e_txt, 20, "%s:%d", "newcamd", cfg.ncd_ptab.ports[cl->port_idx].s_port);
if((rc = cs_auth_client(cl, account, e_txt)) == 2)
{
cs_log("hostname or ip mismatch for user %s (%s)", usr, client_name);