secd-68-fullPeerInfoIntegrity.m   [plain text]

//
// secd-68-fullPeerInfoIntegrity.m
// secdRegressions
//
// Created by Richard Murphy on 4/30/20.
//

#import <Foundation/Foundation.h>

#include <Security/SecBase.h>
#include <Security/SecItem.h>

#include <CoreFoundation/CFDictionary.h>

#include "keychain/SecureObjectSync/SOSAccount.h"
#include <Security/SecureObjectSync/SOSCloudCircle.h>
#include "keychain/SecureObjectSync/SOSInternal.h"
#include "keychain/SecureObjectSync/SOSUserKeygen.h"
#include "keychain/SecureObjectSync/SOSTransport.h"
#include "keychain/SecureObjectSync/SOSAccountTrustClassic+Circle.h"

#include <stdlib.h>
#include <unistd.h>

#include "secd_regressions.h"
#include "SOSTestDataSource.h"

#include "SOSRegressionUtilities.h"
#include <utilities/SecCFWrappers.h>
#include <Security/SecKeyPriv.h>

#include "keychain/securityd/SOSCloudCircleServer.h"

#include "SOSAccountTesting.h"

#include "SecdTestKeychainUtilities.h"
#if SOS_ENABLED

static NSString *makeCircle(SOSAccount* testaccount, CFMutableDictionaryRef changes) {
CFErrorRef error = NULL;

// Every time we resetToOffering should result in a new fpi
NSString *lastPeerID = testaccount.peerID;
ok(SOSAccountResetToOffering_wTxn(testaccount, &error), "Reset to offering (%@)", error);
CFReleaseNull(error);
is(ProcessChangesUntilNoChange(changes, testaccount, NULL), 1, "updates");
NSString *currentPeerID = testaccount.peerID;
ok(![lastPeerID isEqualToString:currentPeerID], "peerID changed on circle reset");
return currentPeerID;
}

static void tests(void) {
CFErrorRef error = NULL;
CFDataRef cfpassword = CFDataCreate(NULL, (uint8_t *) "FooFooFoo", 10);
CFStringRef cfaccount = CFSTR("test@test.org");

CFMutableDictionaryRef changes = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
SOSAccount* testaccount = CreateAccountForLocalChanges(CFSTR("TestDev"), CFSTR("TestSource"));

// Just making an account object to mess with
ok(SOSAccountAssertUserCredentialsAndUpdate(testaccount, cfaccount, cfpassword, &error), "Credential setting (%@)", error);
is(ProcessChangesUntilNoChange(changes, testaccount, NULL), 1, "updates");
CFReleaseNull(error);

// make a circle then make sure fpi isn't reset just for a normal ensureFullPeerAvailable
NSString *lastPeerID = makeCircle(testaccount, changes);
ok([testaccount.trust ensureFullPeerAvailable:testaccount err:&error], "fullPeer is available");
NSString *currentPeerID = testaccount.peerID;
ok([lastPeerID isEqualToString: currentPeerID], "peerID did not alter in trip through ensureFullPeerAvailable");

// leaving a circle should reset the fpi
lastPeerID = makeCircle(testaccount, changes);
ok([testaccount.trust leaveCircle:testaccount err:&error], "leave the circle %@", error);
CFReleaseNull(error);
is(ProcessChangesUntilNoChange(changes, testaccount, NULL), 1, "updates");
currentPeerID = testaccount.peerID;
ok(![lastPeerID isEqualToString:currentPeerID], "peerID changed on leaving circle");

// break the fullpeerinfo by purging the private key - then fix in ensureFullPeerAvailable
lastPeerID = makeCircle(testaccount, changes);
ok(SOSFullPeerInfoPurgePersistentKey(testaccount.fullPeerInfo, &error), "purging persistent key %@", error);
currentPeerID = testaccount.peerID;
ok([lastPeerID isEqualToString:currentPeerID], "pre-ensuring peerID remains the same");
lastPeerID = currentPeerID;
ok([testaccount.trust ensureFullPeerAvailable:testaccount err:&error], "fullPeer is available");
currentPeerID = testaccount.peerID;
ok(![lastPeerID isEqualToString: currentPeerID], "peerID changed because fullPeerInfo fixed in ensureFullPeerAvailable");
lastPeerID = currentPeerID;

// If that last thing worked this peer won't be in the circle any more - changing fpi changes "me"
ok(SOSAccountAssertUserCredentialsAndUpdate(testaccount, cfaccount, cfpassword, &error), "Credential setting (%@)", error);
is(ProcessChangesUntilNoChange(changes, testaccount, NULL), 1, "updates");
CFReleaseNull(error);
ok(![testaccount isInCircle: &error], "No longer in circle");

// This join should work because the peer we left in the circle will be a ghost and there are no other peers
ok(SOSAccountJoinCircles_wTxn(testaccount, &error), "Apply to circle (%@)", error);
CFReleaseNull(error);
is(ProcessChangesUntilNoChange(changes, testaccount, NULL), 1, "updates");
ok([testaccount isInCircle: &error], "Is in circle");
currentPeerID = testaccount.peerID;
ok(![lastPeerID isEqualToString: currentPeerID], "peerID changed because fullPeerInfo changed during join");

CFReleaseNull(cfpassword);
testaccount = nil;
SOSTestCleanup();
}
#endif

int secd_68_fullPeerInfoIntegrity(int argc, char *const *argv)
{
#if SOS_ENABLED
plan_tests(29);
secd_test_setup_temp_keychain(__FUNCTION__, NULL);
tests();
#else
plan_tests(0);
#endif
return 0;
}