// Execution of registration
UINT DCRegister(DDNS_CLIENT *c, bool ipv6, DDNS_REGISTER_PARAM *p, char *replace_v6)
{
char *url;
char url2[MAX_SIZE];
char url3[MAX_SIZE];
PACK *req, *ret;
char key_str[MAX_SIZE];
UCHAR machine_key[SHA1_SIZE];
char machine_key_str[MAX_SIZE];
char machine_name[MAX_SIZE];
BUF *cert_hash;
UINT err = ERR_INTERNAL_ERROR;
UCHAR key_hash[SHA1_SIZE];
char key_hash_str[MAX_SIZE];
bool use_azure = false;
char current_azure_ip[MAX_SIZE];
INTERNET_SETTING t;
UINT build = 0;
bool use_https = false;
bool use_vgs = false;
// Validate arguments
if (c == NULL)
{
return ERR_INTERNAL_ERROR;
}
Zero(current_azure_ip, sizeof(current_azure_ip));
GetCurrentMachineIpProcessHash(machine_key);
BinToStr(machine_key_str, sizeof(machine_key_str), machine_key, sizeof(machine_key));
GetMachineHostName(machine_name, sizeof(machine_name));
StrLower(machine_name);
if (ipv6 == false)
{
url = DDNS_URL_V4_GLOBAL;
if (IsUseAlternativeHostname())
{
url = DDNS_URL_V4_ALT;
}
}
else
{
url = DDNS_URL_V6_GLOBAL;
if (IsUseAlternativeHostname())
{
url = DDNS_URL_V6_ALT;
}
if (replace_v6)
{
url = replace_v6;
}
}
Zero(&t, sizeof(t));
if (ipv6 == false)
{
// Proxy Setting
Copy(&t, &c->InternetSetting, sizeof(INTERNET_SETTING));
}
if (ipv6 == false)
{
// Get the current status of the VPN Azure Client
if (c->Cedar->Server != NULL)
{
AZURE_CLIENT *ac = c->Cedar->Server->AzureClient;
if (ac != NULL)
{
use_azure = SiIsAzureEnabled(c->Cedar->Server);
if (use_azure)
{
Lock(ac->Lock);
{
StrCpy(current_azure_ip, sizeof(current_azure_ip), ac->ConnectingAzureIp);
}
Unlock(ac->Lock);
}
}
}
}
req = NewPack();
BinToStr(key_str, sizeof(key_str), c->Key, sizeof(c->Key));
StrUpper(key_str);
PackAddStr(req, "key", key_str);
// Build Number
build = c->Cedar->Build;
PackAddInt(req, "build", build);
PackAddInt(req, "osinfo", GetOsInfo()->OsType);
PackAddInt(req, "is_64bit", Is64());
#ifdef OS_WIN32
PackAddInt(req, "is_windows_64bit", MsIs64BitWindows());
#endif // OS_WIN32
PackAddBool(req, "is_softether", true);
PackAddBool(req, "is_packetix", false);
PackAddStr(req, "machine_key", machine_key_str);
PackAddStr(req, "machine_name", machine_name);
PackAddInt(req, "lasterror_ipv4", c->Err_IPv4_GetMyIp);
PackAddInt(req, "lasterror_ipv6", c->Err_IPv6_GetMyIp);
PackAddBool(req, "use_azure", use_azure);
PackAddStr(req, "product_str", CEDAR_PRODUCT_STR);
PackAddInt(req, "ddns_protocol_version", DDNS_VERSION);
if (use_azure)
{
Debug("current_azure_ip = %s\n", current_azure_ip);
PackAddStr(req, "current_azure_ip", current_azure_ip);
}
HashSha1(key_hash, key_str, StrLen(key_str));
BinToStr(key_hash_str, sizeof(key_hash_str), key_hash, sizeof(key_hash));
StrLower(key_hash_str);
if (p != NULL)
{
if (IsEmptyStr(p->NewHostname) == false)
{
PackAddStr(req, "new_hostname", p->NewHostname);
}
}
cert_hash = StrToBin(DDNS_CERT_HASH);
Format(url2, sizeof(url2), "%s?v=%I64u", url, Rand64());
Format(url3, sizeof(url3), url2, key_hash_str[0], key_hash_str[1], key_hash_str[2], key_hash_str[3]);
if (use_https == false)
{
ReplaceStr(url3, sizeof(url3), url3, "https://", "http://");
}
ReplaceStr(url3, sizeof(url3), url3, ".servers", ".open.servers");
Debug("WpcCall: %s\n", url3);
ret = WpcCallEx(url3, &t, DDNS_CONNECT_TIMEOUT, DDNS_COMM_TIMEOUT, "register", req,
NULL, NULL, ((cert_hash != NULL && cert_hash->Size == SHA1_SIZE) ? cert_hash->Buf : NULL), NULL, DDNS_RPC_MAX_RECV_SIZE);
Debug("WpcCall Ret: %u\n", ret);
FreeBuf(cert_hash);
FreePack(req);
err = GetErrorFromPack(ret);
ExtractAndApplyDynList(ret);
// Status update
Lock(c->Lock);
{
if (err == ERR_NO_ERROR)
{
char snat_t[MAX_SIZE];
char current_region[128];
// Current host name
PackGetStr(ret, "current_hostname", c->CurrentHostName, sizeof(c->CurrentHostName));
PackGetStr(ret, "current_fqdn", c->CurrentFqdn, sizeof(c->CurrentFqdn));
PackGetStr(ret, "current_ipv4", c->CurrentIPv4, sizeof(c->CurrentIPv4));
PackGetStr(ret, "current_ipv6", c->CurrentIPv6, sizeof(c->CurrentIPv6));
PackGetStr(ret, "dns_suffix", c->DnsSuffix, sizeof(c->DnsSuffix));
PackGetStr(ret, "current_region", current_region, sizeof(current_region));
// SecureNAT connectivity check parameters
Zero(snat_t, sizeof(snat_t));
PackGetStr(ret, "snat_t", snat_t, sizeof(snat_t));
NnSetSecureNatTargetHostname(snat_t);
if (ipv6 == false)
{
char cert_hash[MAX_SIZE];
PackGetStr(ret, "current_azure_ip", c->CurrentAzureIp, sizeof(c->CurrentAzureIp));
c->CurrentAzureTimestamp = PackGetInt64(ret, "current_azure_timestamp");
PackGetStr(ret, "current_azure_signature", c->CurrentAzureSignature, sizeof(c->CurrentAzureSignature));
Zero(cert_hash, sizeof(cert_hash));
PackGetStr(ret, "azure_cert_hash", cert_hash, sizeof(cert_hash));
if (IsEmptyStr(cert_hash) == false)
{
StrCpy(c->AzureCertHash, sizeof(c->AzureCertHash), cert_hash);
}
}
StrCpy(c->Cedar->CurrentDDnsFqdn, sizeof(c->Cedar->CurrentDDnsFqdn), c->CurrentFqdn);
Debug("current_hostname=%s, current_fqdn=%s, current_ipv4=%s, current_ipv6=%s, current_azure_ip=%s, CurrentAzureTimestamp=%I64u, CurrentAzureSignature=%s, CertHash=%s\n",
c->CurrentHostName, c->CurrentFqdn,
c->CurrentIPv4, c->CurrentIPv6,
c->CurrentAzureIp, c->CurrentAzureTimestamp, c->CurrentAzureSignature, c->AzureCertHash);
if (IsEmptyStr(current_region) == false)
{
// Update the current region
SiUpdateCurrentRegion(c->Cedar, current_region, false);
}
}
}
Unlock(c->Lock);
if (IsEmptyStr(c->CurrentFqdn) == false)
{
SetCurrentDDnsFqdn(c->CurrentFqdn);
}
FreePack(ret);
UniDebug(L"DCRegister Error: %s\n", _E(err));
if (err == ERR_DUPLICATE_DDNS_KEY)
{
// Key duplication
DCGenNewKey(c->Key);
c->KeyChanged = true;
}
if (err == ERR_DISCONNECTED)
{
err = ERR_DDNS_DISCONNECTED;
}
if (IsUseAlternativeHostname() == false)
{
if (err == ERR_CONNECT_FAILED)
{
if (ipv6 && replace_v6 == NULL)
{
UINT type = DetectFletsType();
if (type & FLETS_DETECT_TYPE_EAST_BFLETS_PRIVATE && err != ERR_NO_ERROR)
{
err = DCRegister(c, ipv6, p, DDNS_REPLACE_URL_FOR_EAST_BFLETS);
}
if (type & FLETS_DETECT_TYPE_EAST_NGN_PRIVATE && err != ERR_NO_ERROR)
{
err = DCRegister(c, ipv6, p, DDNS_REPLACE_URL_FOR_EAST_NGN);
}
if (type & FLETS_DETECT_TYPE_WEST_NGN_PRIVATE && err != ERR_NO_ERROR)
{
err = DCRegister(c, ipv6, p, DDNS_REPLACE_URL_FOR_WEST_NGN);
}
}
}
}
return err;
}
// Connection for NAT administrator
RPC *NatAdminConnect(CEDAR *cedar, char *hostname, UINT port, void *hashed_password, UINT *err)
{
UCHAR secure_password[SHA1_SIZE];
UCHAR random[SHA1_SIZE];
SOCK *sock;
RPC *rpc;
PACK *p;
UINT error;
// Validate arguments
if (cedar == NULL || hostname == NULL || port == 0 || hashed_password == NULL || err == NULL)
{
if (err != NULL)
{
*err = ERR_INTERNAL_ERROR;
}
return NULL;
}
// Connection
sock = Connect(hostname, port);
if (sock == NULL)
{
*err = ERR_CONNECT_FAILED;
return NULL;
}
if (StartSSL(sock, NULL, NULL) == false)
{
*err = ERR_PROTOCOL_ERROR;
ReleaseSock(sock);
return NULL;
}
SetTimeout(sock, 5000);
p = HttpClientRecv(sock);
if (p == NULL)
{
*err = ERR_DISCONNECTED;
ReleaseSock(sock);
return NULL;
}
if (PackGetData2(p, "auth_random", random, SHA1_SIZE) == false)
{
FreePack(p);
*err = ERR_PROTOCOL_ERROR;
ReleaseSock(sock);
return NULL;
}
FreePack(p);
SecurePassword(secure_password, hashed_password, random);
p = NewPack();
PackAddData(p, "secure_password", secure_password, SHA1_SIZE);
if (HttpClientSend(sock, p) == false)
{
FreePack(p);
*err = ERR_DISCONNECTED;
ReleaseSock(sock);
return NULL;
}
FreePack(p);
p = HttpClientRecv(sock);
if (p == NULL)
{
*err = ERR_DISCONNECTED;
ReleaseSock(sock);
return NULL;
}
error = GetErrorFromPack(p);
FreePack(p);
if (error != ERR_NO_ERROR)
{
*err = error;
ReleaseSock(sock);
return NULL;
}
SetTimeout(sock, TIMEOUT_INFINITE);
rpc = StartRpcClient(sock, NULL);
ReleaseSock(sock);
return rpc;
}
