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Improved SLL error messages and throw on cert error #4313

This commit is contained in:
Nick Bolton 2015-03-04 12:15:56 +00:00
parent 55de0746dc
commit 87a81adeb4
2 changed files with 18 additions and 28 deletions
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41
src/lib/plugin/ns/SecureSocket.cpp
View File

@ -71,7 +71,6 @@ SecureSocket::~SecureSocket()
} }
delete m_ssl; delete m_ssl;
delete[] m_error;
} }
void void
@ -142,7 +141,6 @@ SecureSocket::initSsl(bool server)
m_ssl = new Ssl(); m_ssl = new Ssl();
m_ssl->m_context = NULL; m_ssl->m_context = NULL;
m_ssl->m_ssl = NULL; m_ssl->m_ssl = NULL;
m_error = new char[MAX_ERROR_SIZE];
initContext(server); initContext(server);
} }
@ -153,18 +151,17 @@ SecureSocket::loadCertificates(const char* filename)
int r = 0; int r = 0;
r = SSL_CTX_use_certificate_file(m_ssl->m_context, filename, SSL_FILETYPE_PEM); r = SSL_CTX_use_certificate_file(m_ssl->m_context, filename, SSL_FILETYPE_PEM);
if (r <= 0) { if (r <= 0) {
showError(); throwError("could not use ssl certificate");
} }
r = SSL_CTX_use_PrivateKey_file(m_ssl->m_context, filename, SSL_FILETYPE_PEM); r = SSL_CTX_use_PrivateKey_file(m_ssl->m_context, filename, SSL_FILETYPE_PEM);
if (r <= 0) { if (r <= 0) {
showError(); throwError("could not use ssl private key");
} }
//verify private key
r = SSL_CTX_check_private_key(m_ssl->m_context); r = SSL_CTX_check_private_key(m_ssl->m_context);
if (!r) { if (!r) {
showError(); throwError("could not verify ssl private key");
} }
} }
@ -255,14 +252,13 @@ SecureSocket::showCertificate()
// get the server's certificate // get the server's certificate
cert = SSL_get_peer_certificate(m_ssl->m_ssl); cert = SSL_get_peer_certificate(m_ssl->m_ssl);
if (cert != NULL) { if (cert != NULL) {
LOG((CLOG_INFO "server certificate"));
line = X509_NAME_oneline(X509_get_subject_name(cert), 0, 0); line = X509_NAME_oneline(X509_get_subject_name(cert), 0, 0);
LOG((CLOG_INFO "subject: %s", line)); LOG((CLOG_INFO "server ssl certificate info: %s", line));
OPENSSL_free(line); OPENSSL_free(line);
X509_free(cert); X509_free(cert);
} }
else { else {
LOG((CLOG_INFO "no certificates")); throwError("server has no ssl certificate");
} }
} }
@ -279,7 +275,7 @@ SecureSocket::checkResult(int n)
case SSL_ERROR_ZERO_RETURN: case SSL_ERROR_ZERO_RETURN:
// the TLS/SSL connection has been closed // the TLS/SSL connection has been closed
LOG((CLOG_DEBUG2 "SSL_ERROR_ZERO_RETURN")); LOG((CLOG_DEBUG2 "secure socket error: SSL_ERROR_ZERO_RETURN"));
break; break;
case SSL_ERROR_WANT_READ: case SSL_ERROR_WANT_READ:
@ -304,11 +300,12 @@ SecureSocket::checkResult(int n)
case SSL_ERROR_SYSCALL: case SSL_ERROR_SYSCALL:
// some I/O error occurred // some I/O error occurred
throwError("Secure socket syscall error"); throwError("secure socket syscall error");
break; break;
case SSL_ERROR_SSL: case SSL_ERROR_SSL:
// a failure in the SSL library occurred // a failure in the SSL library occurred
LOG((CLOG_DEBUG2 "SSL_ERROR_SSL")); LOG((CLOG_DEBUG2 "secure socket error: SSL_ERROR_SSL"));
sendEvent(getEvents()->forISocket().disconnected()); sendEvent(getEvents()->forISocket().disconnected());
sendEvent(getEvents()->forIStream().inputShutdown()); sendEvent(getEvents()->forIStream().inputShutdown());
showError(); showError();
@ -327,35 +324,29 @@ SecureSocket::checkResult(int n)
void void
SecureSocket::showError() SecureSocket::showError()
{ {
if (getError()) { LOG((CLOG_ERR "secure socket error: %s", getError().c_str()));
LOG((CLOG_ERR "secure socket error: %s", m_error));
}
} }
void void
SecureSocket::throwError(const char* reason) SecureSocket::throwError(const char* reason)
{ {
if (getError()) {
throw XSocket(synergy::string::sprintf( throw XSocket(synergy::string::sprintf(
"%s: %s", reason, m_error)); "%s: %s", reason, getError().c_str()));
}
} }
bool String
SecureSocket::getError() SecureSocket::getError()
{ {
unsigned long e = ERR_get_error(); unsigned long e = ERR_get_error();
bool errorUpdated = false;
if (e != 0) { if (e != 0) {
ERR_error_string_n(e, m_error, MAX_ERROR_SIZE); char error[MAX_ERROR_SIZE];
errorUpdated = true; ERR_error_string_n(e, error, MAX_ERROR_SIZE);
return error;
} }
else { else {
LOG((CLOG_DEBUG2 "can not detect any error in secure socket")); return "unknown";
} }
return errorUpdated;
} }
ISocketMultiplexerJob* ISocketMultiplexerJob*

3
src/lib/plugin/ns/SecureSocket.h
View File

@ -61,7 +61,7 @@ private:
bool checkResult(int n); bool checkResult(int n);
void showError(); void showError();
void throwError(const char* reason); void throwError(const char* reason);
bool getError(); String getError();
ISocketMultiplexerJob* ISocketMultiplexerJob*
serviceConnect(ISocketMultiplexerJob*, serviceConnect(ISocketMultiplexerJob*,
@ -74,5 +74,4 @@ private:
private: private:
Ssl* m_ssl; Ssl* m_ssl;
bool m_secureReady; bool m_secureReady;
char* m_error;
}; };