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Extend macOS implementation of SqueakSSL plugin to support setting a certificate on the SSL session context #816

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merged 2 commits into from
Jun 28, 2024
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Extend macOS implementation of SqueakSSL plugin to support setting a certificate on the SSL session context #816

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539aedd
Fixed bug in ‘sqAcceptSSL’ in ‘sqMacSSL.c’ which, after setting the s…
Rinzwind Jun 15, 2024
28670bc
Made ‘sqSetupSSL’ in ‘sqMacSSL.c’ handle the ‘CERTNAME’ property havi…
Rinzwind Jun 16, 2024
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36 changes: 35 additions & 1 deletion extracted/plugins/SqueakSSL/src/osx/sqMacSSL.c
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Original file line number Diff line number Diff line change
Expand Up @@ -206,6 +206,40 @@ OSStatus sqSetupSSL(sqSSL* ssl, int isServer)
}
}

if (ssl->certName) {
CFStringRef certName = CFStringCreateWithCString(kCFAllocatorDefault, ssl->certName, kCFStringEncodingASCII);
if (certName == NULL)
return SQSSL_GENERIC_ERROR;
CFMutableDictionaryRef query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
if (query == NULL) {
CFRelease(certName);
return SQSSL_GENERIC_ERROR;
}
CFDictionarySetValue(query, kSecMatchLimit, kSecMatchLimitOne);
CFDictionarySetValue(query, kSecReturnRef, kCFBooleanTrue);
CFDictionarySetValue(query, kSecClass, kSecClassIdentity);
CFDictionarySetValue(query, kSecMatchSubjectWholeString, certName);
CFDictionarySetValue(query, kSecMatchValidOnDate, kCFNull);
CFRelease(certName);
SecIdentityRef identity;
status = SecItemCopyMatching(query, (CFTypeRef*) &identity);
CFRelease(query);
if (status != noErr) {
logStatus(status, status == errSecItemNotFound ? "SecItemCopyMatching had no results" : "SecItemCopyMatching failed");
return status;
}
CFArrayRef certs = CFArrayCreate(kCFAllocatorDefault, (const void **)&identity, 1, &kCFTypeArrayCallBacks);
CFRelease(identity);
if (certs == NULL)
return SQSSL_GENERIC_ERROR;
status = SSLSetCertificate(ssl->ctx, certs);
CFRelease(certs);
if (status != noErr) {
logStatus(status, "SSLSetCertificate failed");
return status;
}
}

return status;
}

Expand Down Expand Up @@ -626,7 +660,7 @@ sqInt sqAcceptSSL(sqInt handle, char* srcBuf, sqInt srcLen, char* dstBuf,
}
/* We are connected. Verify the cert. */
ssl->state = SQSSL_CONNECTED;
return SQSSL_OK;
return ssl->outLen;
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Naive question: does this not break anything ? ^^

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Not that I know of.

Doing the following may help clarify this change: using the new version of the SqueakSSL plugin, put (#result -> result) inspect before the assignment of false to connecting in #accept on ZdcSecureSocketStream, then try my snippet for setting up a ZnSecureServer.

Assuming it works and you get a ZnResponse with status 200, you should also have gotten a value for result greater than 0, so there was a send of #flushEncryptedBytes:startingAt:count: in the last iteration of the #whileFalse: loop. Without the change, result would have been 0, meaning those bytes got lost.

}

/* sqEncryptSSL: Encrypt data for SSL transmission.
Expand Down