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/*
* extendes sockets
*/
#include <unistd.h>
#include <vdr/plugin.h>
#if VDRMANAGER_USE_SSL
#include <openssl/err.h>
#endif
#include "serversock.h"
#include "helpers.h"
#include "compressor.h"
static int clientno = 0;
/*
* cVdrmonServerSocket
*/
cVdrmanagerServerSocket::cVdrmanagerServerSocket() : cVdrmanagerSocket() {
port = -1;
sslCtx = NULL;
}
cVdrmanagerServerSocket::~cVdrmanagerServerSocket() {
#if VDRMANAGER_USE_SSL
if (sslCtx)
SSL_CTX_free(sslCtx);
#endif
}
bool cVdrmanagerServerSocket::Create(int port, const char * password, bool forceCheckSvrp, int compressionMode,
const char * certFile, const char * keyFile) {
this->port = port;
this->password = password;
this->forceCheckSvdrp = forceCheckSvrp;
this->compressionMode = compressionMode;
// create socket
sock = socket(PF_INET, SOCK_STREAM, 0);
if (sock < 0) {
LOG_ERROR;
return false;
}
isyslog("[vdrmanager] created %sSSL server socket on port %d", certFile ? "" : "non ", port);
// allow it to always reuse the same port:
int ReUseAddr = 1;
setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &ReUseAddr, sizeof(ReUseAddr));
// bind to address
struct sockaddr_in name;
name.sin_family = AF_INET;
name.sin_port = htons(port);
name.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(sock, (struct sockaddr *) &name, sizeof(name)) < 0) {
LOG_ERROR;
Close();
return false;
}
// make it non-blocking:
if (!MakeDontBlock()) {
Close();
return false;
}
// listen to the socket:
if (listen(sock, 100) < 0) {
LOG_ERROR;
Close();
return false;
}
#if VDRMANAGER_USE_SSL
if (certFile) {
isyslog("[vdrmanager] initialize SSL");
OpenSSL_add_all_algorithms();
OpenSSL_add_all_ciphers();
OpenSSL_add_all_digests();
OpenSSL_add_ssl_algorithms();
SSL_load_error_strings();
SSL_library_init();
const SSL_METHOD * method = SSLv23_server_method();
sslCtx = SSL_CTX_new(method);
if (sslCtx == NULL) {
long errorCode = ERR_get_error();
char * error = ERR_error_string(errorCode, NULL);
esyslog("[vdrmanager] Error initializing SSL context: %s", error);
Close();
return false;
}
/* set the local certificate from CertFile */
SSL_CTX_use_certificate_file(sslCtx, certFile, SSL_FILETYPE_PEM);
/* set the private key from KeyFile */
SSL_CTX_use_PrivateKey_file(sslCtx, keyFile, SSL_FILETYPE_PEM);
/* verify private key */
if (!SSL_CTX_check_private_key(sslCtx)) {
long errorCode = ERR_get_error();
char * error = ERR_error_string(errorCode, NULL);
esyslog("[vdrmanager] Error checking SSL keys: %s", error);
Close();
return false;
}
SSL_CTX_set_mode(sslCtx, SSL_MODE_ENABLE_PARTIAL_WRITE);
}
#endif
return true;
}
cVdrmanagerClientSocket * cVdrmanagerServerSocket::Accept() {
cVdrmanagerClientSocket * newsocket = NULL;
isyslog("[vdrmanager] new %sclient on port %d", sslCtx ? "SSL " : "", port);
// accept the connection
struct sockaddr_in clientname;
uint size = sizeof(clientname);
int newsock = accept(sock, (struct sockaddr *) &clientname, &size);
if (newsock > 0) {
// create client socket
newsocket = new cVdrmanagerClientSocket(password, compressionMode);
if (!newsocket->Attach(newsock, sslCtx)) {
delete newsocket;
return NULL;
}
if (!IsPasswordSet() || forceCheckSvdrp == true) {
bool accepted = SVDRPhosts.Acceptable(clientname.sin_addr.s_addr);
if (!accepted) {
newsocket->Write(string("NACC Access denied.\n"));
newsocket->Flush();
delete newsocket;
newsocket = NULL;
}
dsyslog(
"[vdrmanager] connect from %s, port %hd - %s", inet_ntoa(clientname.sin_addr), ntohs(clientname.sin_port), accepted ? "accepted" : "DENIED");
}
} else if (errno != EINTR && errno != EAGAIN
)
LOG_ERROR;
return newsocket;
}
int cVdrmanagerServerSocket::GetPort() {
return port;
}
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