/*
- * "$Id$"
+ * TLS support for CUPS on Windows using the Security Support Provider
+ * Interface (SSPI).
*
- * TLS support for CUPS on Windows using SSPI.
+ * Copyright 2010-2018 by Apple Inc.
*
- * Copyright 2010-2014 by Apple Inc.
- *
- * These coded instructions, statements, and computer programs are the
- * property of Apple Inc. and are protected by Federal copyright
- * law. Distribution and use rights are outlined in the file "LICENSE.txt"
- * which should have been included with this file. If this file is
- * file is missing or damaged, see the license at "http://www.cups.org/".
- *
- * This file is subject to the Apple OS-Developed Software exception.
+ * Licensed under Apache License v2.0. See the file "LICENSE" for more information.
*/
/**** This file is included from tls.c ****/
# define SECURITY_FLAG_IGNORE_CERT_DATE_INVALID 0x00002000 /* Expired X509 Cert. */
#endif /* !SECURITY_FLAG_IGNORE_CERT_DATE_INVALID */
+
+/*
+ * Local globals...
+ */
+
+static int tls_options = -1,/* Options for TLS connections */
+ tls_min_version = _HTTP_TLS_1_0,
+ tls_max_version = _HTTP_TLS_MAX;
+
+
/*
* Local functions...
*/
* 'httpCopyCredentials()' - Copy the credentials associated with the peer in
* an encrypted connection.
*
- * @since CUPS 1.5/OS X 10.7@
+ * @since CUPS 1.5/macOS 10.7@
*/
int /* O - Status of call (0 = success) */
if (!cert)
return (HTTP_TRUST_UNKNOWN);
+ if (cg->any_root < 0)
+ _cupsSetDefaults();
+
if (cg->any_root)
certFlags |= SECURITY_FLAG_IGNORE_UNKNOWN_CA;
SYSTEMTIME systime; /* System time */
struct tm tm; /* UNIX date/time */
time_t expiration; /* Expiration date of cert */
- _cups_md5_state_t md5_state; /* MD5 state */
unsigned char md5_digest[16]; /* MD5 result */
FileTimeToSystemTime(&(cert->pCertInfo->NotAfter), &systime);
else
strlcpy(cert_name, "unknown", sizeof(cert_name));
- _cupsMD5Init(&md5_state);
- _cupsMD5Append(&md5_state, first->data, (int)first->datalen);
- _cupsMD5Finish(&md5_state, md5_digest);
+ cupsHashData("md5", first->data, first->datalen, md5_digest, sizeof(md5_digest));
snprintf(buffer, bufsize, "%s / %s / %02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X", cert_name, httpGetDateString(expiration), md5_digest[0], md5_digest[1], md5_digest[2], md5_digest[3], md5_digest[4], md5_digest[5], md5_digest[6], md5_digest[7], md5_digest[8], md5_digest[9], md5_digest[10], md5_digest[11], md5_digest[12], md5_digest[13], md5_digest[14], md5_digest[15]);
}
+/*
+ * '_httpTLSSetOptions()' - Set TLS protocol and cipher suite options.
+ */
+
+void
+_httpTLSSetOptions(int options, /* I - Options */
+ int min_version, /* I - Minimum TLS version */
+ int max_version) /* I - Maximum TLS version */
+{
+ if (!(options & _HTTP_TLS_SET_DEFAULT) || tls_options < 0)
+ {
+ tls_options = options;
+ tls_min_version = min_version;
+ tls_max_version = max_version;
+ }
+}
+
+
/*
* '_httpTLSStart()' - Set up SSL/TLS support on a connection.
*/
*hostptr; /* Pointer into hostname */
- DEBUG_printf(("7_httpTLSStart(http=%p)", http));
+ DEBUG_printf(("3_httpTLSStart(http=%p)", http));
+
+ if (tls_options < 0)
+ {
+ DEBUG_puts("4_httpTLSStart: Setting defaults.");
+ _cupsSetDefaults();
+ DEBUG_printf(("4_httpTLSStart: tls_options=%x", tls_options));
+ }
if ((http->tls = http_sspi_alloc()) == NULL)
return (-1);
* Server: determine hostname to use...
*/
- if (http->fields[HTTP_FIELD_HOST][0])
+ if (http->fields[HTTP_FIELD_HOST])
{
/*
* Use hostname for TLS upgrade...
SchannelCred.paCred = &storedContext;
/*
- * SSPI doesn't seem to like it if grbitEnabledProtocols is set for a client.
+ * Set supported protocols (can also be overriden in the registry...)
*/
+#ifdef SP_PROT_TLS1_2_SERVER
if (http->mode == _HTTP_MODE_SERVER)
- SchannelCred.grbitEnabledProtocols = SP_PROT_SSL3TLS1;
+ {
+ if (tls_min_version > _HTTP_TLS_1_1)
+ SchannelCred.grbitEnabledProtocols = SP_PROT_TLS1_2_SERVER;
+ else if (tls_min_version > _HTTP_TLS_1_0)
+ SchannelCred.grbitEnabledProtocols = SP_PROT_TLS1_2_SERVER | SP_PROT_TLS1_1_SERVER;
+ else if (tls_min_version == _HTTP_TLS_SSL3)
+ SchannelCred.grbitEnabledProtocols = SP_PROT_TLS1_2_SERVER | SP_PROT_TLS1_1_SERVER | SP_PROT_TLS1_0_SERVER | SP_PROT_SSL3_SERVER;
+ else
+ SchannelCred.grbitEnabledProtocols = SP_PROT_TLS1_2_SERVER | SP_PROT_TLS1_1_SERVER | SP_PROT_TLS1_0_SERVER;
+ }
+ else
+ {
+ if (tls_min_version > _HTTP_TLS_1_1)
+ SchannelCred.grbitEnabledProtocols = SP_PROT_TLS1_2_CLIENT;
+ else if (tls_min_version > _HTTP_TLS_1_0)
+ SchannelCred.grbitEnabledProtocols = SP_PROT_TLS1_2_CLIENT | SP_PROT_TLS1_1_CLIENT;
+ else if (tls_min_version == _HTTP_TLS_SSL3)
+ SchannelCred.grbitEnabledProtocols = SP_PROT_TLS1_2_CLIENT | SP_PROT_TLS1_1_CLIENT | SP_PROT_TLS1_0_CLIENT | SP_PROT_SSL3_CLIENT;
+ else
+ SchannelCred.grbitEnabledProtocols = SP_PROT_TLS1_2_CLIENT | SP_PROT_TLS1_1_CLIENT | SP_PROT_TLS1_0_CLIENT;
+ }
+
+#else
+ if (http->mode == _HTTP_MODE_SERVER)
+ {
+ if (tls_min_version == _HTTP_TLS_SSL3)
+ SchannelCred.grbitEnabledProtocols = SP_PROT_TLS1_SERVER | SP_PROT_SSL3_SERVER;
+ else
+ SchannelCred.grbitEnabledProtocols = SP_PROT_TLS1_SERVER;
+ }
+ else
+ {
+ if (tls_min_version == _HTTP_TLS_SSL3)
+ SchannelCred.grbitEnabledProtocols = SP_PROT_TLS1_CLIENT | SP_PROT_SSL3_CLIENT;
+ else
+ SchannelCred.grbitEnabledProtocols = SP_PROT_TLS1_CLIENT;
+ }
+#endif /* SP_PROT_TLS1_2_SERVER */
+
+ /* TODO: Support _HTTP_TLS_ALLOW_RC4, _HTTP_TLS_ALLOW_DH, and _HTTP_TLS_DENY_CBC options; right now we'll rely on Windows registry to enable/disable RC4/DH/CBC... */
/*
* Create an SSPI credential.
return (status);
}
-
-
-/*
- * End of "$Id$".
- */
projects / thirdparty / cups.git / blobdiff