summaryrefslogtreecommitdiff
path: root/contrib/keychain-mcd
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/keychain-mcd')
-rw-r--r--contrib/keychain-mcd/Makefile13
-rw-r--r--contrib/keychain-mcd/cert_data.c734
-rw-r--r--contrib/keychain-mcd/cert_data.h46
-rw-r--r--contrib/keychain-mcd/common_osx.c94
-rw-r--r--contrib/keychain-mcd/common_osx.h36
-rw-r--r--contrib/keychain-mcd/crypto_osx.c75
-rw-r--r--contrib/keychain-mcd/crypto_osx.h44
-rw-r--r--contrib/keychain-mcd/keychain-mcd.8161
-rw-r--r--contrib/keychain-mcd/main.c255
9 files changed, 1458 insertions, 0 deletions
diff --git a/contrib/keychain-mcd/Makefile b/contrib/keychain-mcd/Makefile
new file mode 100644
index 0000000..c6431df
--- /dev/null
+++ b/contrib/keychain-mcd/Makefile
@@ -0,0 +1,13 @@
+CFILES = cert_data.c common_osx.c crypto_osx.c main.c
+OFILES = $(CFILES:.c=.o) ../../src/openvpn/base64.o
+prog = keychain-mcd
+
+CC = gcc
+CFLAGS = -Wall
+LDFLAGS = -framework CoreFoundation -framework Security -framework CoreServices
+
+$(prog): $(OFILES)
+ $(CC) $(LDFLAGS) $(OFILES) -o $(prog)
+
+%.o: %.c
+ $(CC) $(CFLAGS) -c $< -o $@
diff --git a/contrib/keychain-mcd/cert_data.c b/contrib/keychain-mcd/cert_data.c
new file mode 100644
index 0000000..a04bf79
--- /dev/null
+++ b/contrib/keychain-mcd/cert_data.c
@@ -0,0 +1,734 @@
+/*
+ * OpenVPN -- An application to securely tunnel IP networks
+ * over a single UDP port, with support for SSL/TLS-based
+ * session authentication and key exchange,
+ * packet encryption, packet authentication, and
+ * packet compression.
+ *
+ * Copyright (C) 2010 Brian Raderman <brian@irregularexpression.org>
+ * Copyright (C) 2013-2015 Vasily Kulikov <segoon@openwall.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING included with this
+ * distribution); if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+#include "cert_data.h"
+#include <CommonCrypto/CommonDigest.h>
+#include <openssl/ssl.h>
+
+#include "common_osx.h"
+#include "crypto_osx.h"
+#include <err.h>
+
+CFStringRef kCertDataSubjectName = CFSTR("subject"),
+ kCertDataIssuerName = CFSTR("issuer"),
+ kCertDataSha1Name = CFSTR("SHA1"),
+ kCertDataMd5Name = CFSTR("MD5"),
+ kCertDataSerialName = CFSTR("serial"),
+ kCertNameFwdSlash = CFSTR("/"),
+ kCertNameEquals = CFSTR("=");
+CFStringRef kCertNameOrganization = CFSTR("o"),
+ kCertNameOrganizationalUnit = CFSTR("ou"),
+ kCertNameCountry = CFSTR("c"),
+ kCertNameLocality = CFSTR("l"),
+ kCertNameState = CFSTR("st"),
+ kCertNameCommonName = CFSTR("cn"),
+ kCertNameEmail = CFSTR("e");
+CFStringRef kStringSpace = CFSTR(" "),
+ kStringEmpty = CFSTR("");
+
+typedef struct _CertName
+{
+ CFArrayRef countryName, organization, organizationalUnit, commonName, description, emailAddress,
+ stateName, localityName;
+} CertName, *CertNameRef;
+
+typedef struct _DescData
+{
+ CFStringRef name, value;
+} DescData, *DescDataRef;
+
+void destroyDescData(DescDataRef pData);
+
+CertNameRef createCertName()
+{
+ CertNameRef pCertName = (CertNameRef)malloc(sizeof(CertName));
+ pCertName->countryName = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+ pCertName->organization = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+ pCertName->organizationalUnit = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+ pCertName->commonName = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+ pCertName->description = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+ pCertName->emailAddress = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+ pCertName->stateName = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+ pCertName->localityName = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+ return pCertName;
+}
+
+void destroyCertName(CertNameRef pCertName)
+{
+ if (!pCertName)
+ return;
+
+ CFRelease(pCertName->countryName);
+ CFRelease(pCertName->organization);
+ CFRelease(pCertName->organizationalUnit);
+ CFRelease(pCertName->commonName);
+ CFRelease(pCertName->description);
+ CFRelease(pCertName->emailAddress);
+ CFRelease(pCertName->stateName);
+ CFRelease(pCertName->localityName);
+ free(pCertName);
+}
+
+bool CFStringRefCmpCString(CFStringRef cfstr, const char *str)
+{
+ CFStringRef tmp = CFStringCreateWithCStringNoCopy(NULL, str, kCFStringEncodingUTF8, kCFAllocatorNull);
+ CFComparisonResult cresult = CFStringCompare(cfstr, tmp, 0);
+ bool result = cresult == kCFCompareEqualTo;
+ CFRelease(tmp);
+ return result;
+}
+
+CFDateRef GetDateFieldFromCertificate(SecCertificateRef certificate, CFTypeRef oid)
+{
+ const void *keys[] = { oid };
+ CFDictionaryRef dict = NULL;
+ CFErrorRef error;
+ CFDateRef date = NULL;
+
+ CFArrayRef keySelection = CFArrayCreate(NULL, keys , sizeof(keys)/sizeof(keys[0]), &kCFTypeArrayCallBacks);
+ dict = SecCertificateCopyValues(certificate, keySelection, &error);
+ if (dict == NULL)
+ {
+ printErrorMsg("GetDateFieldFromCertificate: SecCertificateCopyValues", error);
+ goto release_ks;
+ }
+ CFDictionaryRef vals = dict ? CFDictionaryGetValue(dict, oid) : NULL;
+ CFNumberRef vals2 = vals ? CFDictionaryGetValue(vals, kSecPropertyKeyValue) : NULL;
+ if (vals2 == NULL)
+ goto release_dict;
+
+ CFAbsoluteTime validityNotBefore;
+ if (CFNumberGetValue(vals2, kCFNumberDoubleType, &validityNotBefore))
+ date = CFDateCreate(kCFAllocatorDefault,validityNotBefore);
+
+release_dict:
+ CFRelease(dict);
+release_ks:
+ CFRelease(keySelection);
+ return date;
+}
+
+CFArrayRef GetFieldsFromCertificate(SecCertificateRef certificate, CFTypeRef oid)
+{
+ CFMutableArrayRef fields = CFArrayCreateMutable(NULL, 0, NULL);
+ CertNameRef pCertName = createCertName();
+ const void* keys[] = { oid, };
+ CFDictionaryRef dict;
+ CFErrorRef error;
+
+ CFArrayRef keySelection = CFArrayCreate(NULL, keys , 1, NULL);
+
+ dict = SecCertificateCopyValues(certificate, keySelection, &error);
+ if (dict == NULL) {
+ printErrorMsg("GetFieldsFromCertificate: SecCertificateCopyValues", error);
+ CFRelease(keySelection);
+ CFRelease(fields);
+ destroyCertName(pCertName);
+ return NULL;
+ }
+ CFDictionaryRef vals = CFDictionaryGetValue(dict, oid);
+ CFArrayRef vals2 = vals ? CFDictionaryGetValue(vals, kSecPropertyKeyValue) : NULL;
+ if (vals2)
+ {
+ for(int i = 0; i < CFArrayGetCount(vals2); i++) {
+ CFDictionaryRef subDict = CFArrayGetValueAtIndex(vals2, i);
+ CFStringRef label = CFDictionaryGetValue(subDict, kSecPropertyKeyLabel);
+ CFStringRef value = CFDictionaryGetValue(subDict, kSecPropertyKeyValue);
+
+ if (CFStringCompare(label, kSecOIDEmailAddress, 0) == kCFCompareEqualTo)
+ CFArrayAppendValue((CFMutableArrayRef)pCertName->emailAddress, value);
+ else if (CFStringCompare(label, kSecOIDCountryName, 0) == kCFCompareEqualTo)
+ CFArrayAppendValue((CFMutableArrayRef)pCertName->countryName, value);
+ else if (CFStringCompare(label, kSecOIDOrganizationName, 0) == kCFCompareEqualTo)
+ CFArrayAppendValue((CFMutableArrayRef)pCertName->organization, value);
+ else if (CFStringCompare(label, kSecOIDOrganizationalUnitName, 0) == kCFCompareEqualTo)
+ CFArrayAppendValue((CFMutableArrayRef)pCertName->organizationalUnit, value);
+ else if (CFStringCompare(label, kSecOIDCommonName, 0) == kCFCompareEqualTo)
+ CFArrayAppendValue((CFMutableArrayRef)pCertName->commonName, value);
+ else if (CFStringCompare(label, kSecOIDDescription, 0) == kCFCompareEqualTo)
+ CFArrayAppendValue((CFMutableArrayRef)pCertName->description, value);
+ else if (CFStringCompare(label, kSecOIDStateProvinceName, 0) == kCFCompareEqualTo)
+ CFArrayAppendValue((CFMutableArrayRef)pCertName->stateName, value);
+ else if (CFStringCompare(label, kSecOIDLocalityName, 0) == kCFCompareEqualTo)
+ CFArrayAppendValue((CFMutableArrayRef)pCertName->localityName, value);
+ }
+ CFArrayAppendValue(fields, pCertName);
+ }
+
+ CFRelease(dict);
+ CFRelease(keySelection);
+ return fields;
+}
+
+CertDataRef createCertDataFromCertificate(SecCertificateRef certificate)
+{
+ CertDataRef pCertData = (CertDataRef)malloc(sizeof(CertData));
+ pCertData->subject = GetFieldsFromCertificate(certificate, kSecOIDX509V1SubjectName);
+ pCertData->issuer = GetFieldsFromCertificate(certificate, kSecOIDX509V1IssuerName);
+
+ CFDataRef data = SecCertificateCopyData(certificate);
+ if (data == NULL)
+ {
+ warnx("SecCertificateCopyData() returned NULL");
+ destroyCertData(pCertData);
+ return NULL;
+ }
+
+ unsigned char sha1[CC_SHA1_DIGEST_LENGTH];
+ CC_SHA1(CFDataGetBytePtr(data), CFDataGetLength(data), sha1);
+ pCertData->sha1 = createHexString(sha1, CC_SHA1_DIGEST_LENGTH);
+
+ unsigned char md5[CC_MD5_DIGEST_LENGTH];
+ CC_MD5(CFDataGetBytePtr(data), CFDataGetLength(data), md5);
+ pCertData->md5 = createHexString((unsigned char*)md5, CC_MD5_DIGEST_LENGTH);
+
+ CFDataRef serial = SecCertificateCopySerialNumber(certificate, NULL);
+ pCertData->serial = createHexString((unsigned char *)CFDataGetBytePtr(serial), CFDataGetLength(serial));
+ CFRelease(serial);
+
+ return pCertData;
+}
+
+CFStringRef stringFromRange(const char *cstring, CFRange range)
+{
+ CFStringRef str = CFStringCreateWithBytes (NULL, (uint8*)&cstring[range.location], range.length, kCFStringEncodingUTF8, false);
+ CFMutableStringRef mutableStr = CFStringCreateMutableCopy(NULL, 0, str);
+ CFStringTrimWhitespace(mutableStr);
+ CFRelease(str);
+ return mutableStr;
+}
+
+DescDataRef createDescData(const char *description, CFRange nameRange, CFRange valueRange)
+{
+ DescDataRef pRetVal = (DescDataRef)malloc(sizeof(DescData));
+
+ memset(pRetVal, 0, sizeof(DescData));
+
+ if (nameRange.length > 0)
+ pRetVal->name = stringFromRange(description, nameRange);
+
+ if (valueRange.length > 0)
+ pRetVal->value = stringFromRange(description, valueRange);
+
+#if 0
+ fprintf(stderr, "name = '%s', value = '%s'\n",
+ CFStringGetCStringPtr(pRetVal->name, kCFStringEncodingUTF8),
+ CFStringGetCStringPtr(pRetVal->value, kCFStringEncodingUTF8));
+#endif
+ return pRetVal;
+}
+
+void destroyDescData(DescDataRef pData)
+{
+ if (pData->name)
+ CFRelease(pData->name);
+
+ if (pData->value)
+ CFRelease(pData->value);
+
+ free(pData);
+}
+
+CFArrayRef createDescDataPairs(const char *description)
+{
+ int numChars = strlen(description);
+ CFRange nameRange, valueRange;
+ DescDataRef pData;
+ CFMutableArrayRef retVal = CFArrayCreateMutable(NULL, 0, NULL);
+
+ int i = 0;
+
+ nameRange = CFRangeMake(0, 0);
+ valueRange = CFRangeMake(0, 0);
+ bool bInValue = false;
+
+ while(i < numChars)
+ {
+ if (!bInValue && (description[i] != ':'))
+ {
+ nameRange.length++;
+ }
+ else if (bInValue && (description[i] != ':'))
+ {
+ valueRange.length++;
+ }
+ else if(!bInValue)
+ {
+ bInValue = true;
+ valueRange.location = i + 1;
+ valueRange.length = 0;
+ }
+ else //(bInValue)
+ {
+ bInValue = false;
+ while(description[i] != ' ')
+ {
+ valueRange.length--;
+ i--;
+ }
+
+ pData = createDescData(description, nameRange, valueRange);
+ CFArrayAppendValue(retVal, pData);
+
+ nameRange.location = i + 1;
+ nameRange.length = 0;
+ }
+
+ i++;
+ }
+
+ pData = createDescData(description, nameRange, valueRange);
+ CFArrayAppendValue(retVal, pData);
+ return retVal;
+}
+
+void arrayDestroyDescData(const void *val, void *context)
+{
+ DescDataRef pData = (DescDataRef) val;
+ destroyDescData(pData);
+}
+
+
+int parseNameComponent(CFStringRef dn, CFStringRef *pName, CFStringRef *pValue)
+{
+ CFArrayRef nameStrings = CFStringCreateArrayBySeparatingStrings(NULL, dn, kCertNameEquals);
+
+ *pName = *pValue = NULL;
+
+ if (CFArrayGetCount(nameStrings) != 2)
+ return 0;
+
+ CFMutableStringRef str;
+
+ str = CFStringCreateMutableCopy(NULL, 0, CFArrayGetValueAtIndex(nameStrings, 0));
+ CFStringTrimWhitespace(str);
+ *pName = str;
+
+ str = CFStringCreateMutableCopy(NULL, 0, CFArrayGetValueAtIndex(nameStrings, 1));
+ CFStringTrimWhitespace(str);
+ *pValue = str;
+
+ CFRelease(nameStrings);
+ return 1;
+}
+
+int tryAppendSingleCertField(CertNameRef pCertName, CFArrayRef where, CFStringRef key,
+ CFStringRef name, CFStringRef value)
+{
+ if (CFStringCompareWithOptions(name, key, CFRangeMake(0, CFStringGetLength(name)), kCFCompareCaseInsensitive)
+ == kCFCompareEqualTo) {
+ CFArrayAppendValue((CFMutableArrayRef)where, value);
+ return 1;
+ }
+ return 0;
+}
+
+int appendCertField(CertNameRef pCert, CFStringRef name, CFStringRef value)
+{
+ struct {
+ CFArrayRef field;
+ CFStringRef key;
+ } fields[] = {
+ { pCert->organization, kCertNameOrganization},
+ { pCert->organizationalUnit, kCertNameOrganizationalUnit},
+ { pCert->countryName, kCertNameCountry},
+ { pCert->localityName, kCertNameLocality},
+ { pCert->stateName, kCertNameState},
+ { pCert->commonName, kCertNameCommonName},
+ { pCert->emailAddress, kCertNameEmail},
+ };
+ int i;
+ int ret = 0;
+
+ for (i=0; i<sizeof(fields)/sizeof(fields[0]); i++)
+ ret += tryAppendSingleCertField(pCert, fields[i].field, fields[i].key, name, value);
+ return ret;
+}
+
+int parseCertName(CFStringRef nameDesc, CFMutableArrayRef names)
+{
+ CFArrayRef nameStrings = CFStringCreateArrayBySeparatingStrings(NULL, nameDesc, kCertNameFwdSlash);
+ int count = CFArrayGetCount(nameStrings);
+ int i;
+ int ret = 1;
+
+ CertNameRef pCertName = createCertName();
+
+ for(i = 0;i < count;i++)
+ {
+ CFMutableStringRef dn = CFStringCreateMutableCopy(NULL, 0, CFArrayGetValueAtIndex(nameStrings, i));
+ CFStringTrimWhitespace(dn);
+
+ CFStringRef name, value;
+
+ if (!parseNameComponent(dn, &name, &value))
+ ret = 0;
+
+ if (!name || !value)
+ {
+ if (name)
+ CFRelease(name);
+
+ if (value)
+ CFRelease(value);
+ if (name && !value)
+ ret = 0;
+
+ CFRelease(dn);
+ continue;
+ }
+
+ if (!appendCertField(pCertName, name, value))
+ ret = 0;
+ CFRelease(name);
+ CFRelease(value);
+ CFRelease(dn);
+ }
+
+ CFArrayAppendValue(names, pCertName);
+ CFRelease(nameStrings);
+ return ret;
+}
+
+int arrayParseDescDataPair(const void *val, void *context)
+{
+ DescDataRef pDescData = (DescDataRef)val;
+ CertDataRef pCertData = (CertDataRef)context;
+ int ret = 1;
+
+ if (!pDescData->name || !pDescData->value)
+ return 0;
+
+ if (CFStringCompareWithOptions(pDescData->name, kCertDataSubjectName, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
+ ret = parseCertName(pDescData->value, (CFMutableArrayRef)pCertData->subject);
+ else if (CFStringCompareWithOptions(pDescData->name, kCertDataIssuerName, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
+ ret = parseCertName(pDescData->value, (CFMutableArrayRef)pCertData->issuer);
+ else if (CFStringCompareWithOptions(pDescData->name, kCertDataSha1Name, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
+ pCertData->sha1 = CFRetain(pDescData->value);
+ else if (CFStringCompareWithOptions(pDescData->name, kCertDataMd5Name, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
+ pCertData->md5 = CFRetain(pDescData->value);
+ else if (CFStringCompareWithOptions(pDescData->name, kCertDataSerialName, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
+ pCertData->serial = CFRetain(pDescData->value);
+ else
+ return 0;
+
+ return ret;
+}
+
+CertDataRef createCertDataFromString(const char *description)
+{
+ CertDataRef pCertData = (CertDataRef)malloc(sizeof(CertData));
+ pCertData->subject = CFArrayCreateMutable(NULL, 0, NULL);
+ pCertData->issuer = CFArrayCreateMutable(NULL, 0, NULL);
+ pCertData->sha1 = NULL;
+ pCertData->md5 = NULL;
+ pCertData->serial = NULL;
+
+ CFArrayRef pairs = createDescDataPairs(description);
+ for (int i=0; i<CFArrayGetCount(pairs); i++)
+ if (!arrayParseDescDataPair(CFArrayGetValueAtIndex(pairs, i), pCertData)) {
+ arrayDestroyDescData(pCertData, NULL);
+ CFArrayApplyFunction(pairs, CFRangeMake(0, CFArrayGetCount(pairs)), arrayDestroyDescData, NULL);
+ CFRelease(pairs);
+ return 0;
+ }
+
+ CFArrayApplyFunction(pairs, CFRangeMake(0, CFArrayGetCount(pairs)), arrayDestroyDescData, NULL);
+ CFRelease(pairs);
+ return pCertData;
+}
+
+void arrayDestroyCertName(const void *val, void *context)
+{
+ CertNameRef pCertName = (CertNameRef)val;
+ destroyCertName(pCertName);
+}
+
+void destroyCertData(CertDataRef pCertData)
+{
+ if (pCertData->subject)
+ {
+ CFArrayApplyFunction(pCertData->subject, CFRangeMake(0, CFArrayGetCount(pCertData->subject)), arrayDestroyCertName, NULL);
+ CFRelease(pCertData->subject);
+ }
+
+ if (pCertData->issuer)
+ {
+ CFArrayApplyFunction(pCertData->issuer, CFRangeMake(0, CFArrayGetCount(pCertData->issuer)), arrayDestroyCertName, NULL);
+ CFRelease(pCertData->issuer);
+ }
+
+ if (pCertData->sha1)
+ CFRelease(pCertData->sha1);
+
+ if (pCertData->md5)
+ CFRelease(pCertData->md5);
+
+ if (pCertData->serial)
+ CFRelease(pCertData->serial);
+
+ free(pCertData);
+}
+
+bool stringArrayMatchesTemplate(CFArrayRef strings, CFArrayRef templateArray)
+{
+ int templateCount, stringCount, i;
+
+ templateCount = CFArrayGetCount(templateArray);
+
+ if (templateCount > 0)
+ {
+ stringCount = CFArrayGetCount(strings);
+ if (stringCount != templateCount)
+ return false;
+
+ for(i = 0;i < stringCount;i++)
+ {
+ CFStringRef str, template;
+
+ template = (CFStringRef)CFArrayGetValueAtIndex(templateArray, i);
+ str = (CFStringRef)CFArrayGetValueAtIndex(strings, i);
+
+ if (CFStringCompareWithOptions(template, str, CFRangeMake(0, CFStringGetLength(template)), kCFCompareCaseInsensitive) != kCFCompareEqualTo)
+ return false;
+ }
+ }
+
+ return true;
+
+}
+
+bool certNameMatchesTemplate(CertNameRef pCertName, CertNameRef pTemplate)
+{
+ if (!stringArrayMatchesTemplate(pCertName->countryName, pTemplate->countryName))
+ return false;
+ else if (!stringArrayMatchesTemplate(pCertName->organization, pTemplate->organization))
+ return false;
+ else if (!stringArrayMatchesTemplate(pCertName->organizationalUnit, pTemplate->organizationalUnit))
+ return false;
+ else if (!stringArrayMatchesTemplate(pCertName->commonName, pTemplate->commonName))
+ return false;
+ else if (!stringArrayMatchesTemplate(pCertName->emailAddress, pTemplate->emailAddress))
+ return false;
+ else if (!stringArrayMatchesTemplate(pCertName->stateName, pTemplate->stateName))
+ return false;
+ else if (!stringArrayMatchesTemplate(pCertName->localityName, pTemplate->localityName))
+ return false;
+ else
+ return true;
+}
+
+bool certNameArrayMatchesTemplate(CFArrayRef certNameArray, CFArrayRef templateArray)
+{
+ int templateCount, certCount, i;
+
+ templateCount = CFArrayGetCount(templateArray);
+
+ if (templateCount > 0)
+ {
+ certCount = CFArrayGetCount(certNameArray);
+ if (certCount != templateCount)
+ return false;
+
+ for(i = 0;i < certCount;i++)
+ {
+ CertNameRef pName, pTemplateName;
+
+ pTemplateName = (CertNameRef)CFArrayGetValueAtIndex(templateArray, i);
+ pName = (CertNameRef)CFArrayGetValueAtIndex(certNameArray, i);
+
+ if (!certNameMatchesTemplate(pName, pTemplateName))
+ return false;
+ }
+ }
+
+ return true;
+}
+
+bool hexStringMatchesTemplate(CFStringRef str, CFStringRef template)
+{
+ if (template)
+ {
+ if (!str)
+ return false;
+
+ CFMutableStringRef strMutable, templateMutable;
+
+ strMutable = CFStringCreateMutableCopy(NULL, 0, str);
+ templateMutable = CFStringCreateMutableCopy(NULL, 0, template);
+
+ CFStringFindAndReplace(strMutable, kStringSpace, kStringEmpty, CFRangeMake(0, CFStringGetLength(strMutable)), 0);
+ CFStringFindAndReplace(templateMutable, kStringSpace, kStringEmpty, CFRangeMake(0, CFStringGetLength(templateMutable)), 0);
+
+ CFComparisonResult result = CFStringCompareWithOptions(templateMutable, strMutable, CFRangeMake(0, CFStringGetLength(templateMutable)), kCFCompareCaseInsensitive);
+
+ CFRelease(strMutable);
+ CFRelease(templateMutable);
+
+ if (result != kCFCompareEqualTo)
+ return false;
+ }
+
+ return true;
+}
+
+bool certDataMatchesTemplate(CertDataRef pCertData, CertDataRef pTemplate)
+{
+ if (!certNameArrayMatchesTemplate(pCertData->subject, pTemplate->subject))
+ return false;
+
+ if (!certNameArrayMatchesTemplate(pCertData->issuer, pTemplate->issuer))
+ return false;
+
+ if (!hexStringMatchesTemplate(pCertData->sha1, pTemplate->sha1))
+ return false;
+
+ if (!hexStringMatchesTemplate(pCertData->md5, pTemplate->md5))
+ return false;
+
+ if (!hexStringMatchesTemplate(pCertData->serial, pTemplate->serial))
+ return false;
+
+ return true;
+}
+
+bool certExpired(SecCertificateRef certificate)
+{
+ bool result;
+ CFDateRef notAfter = GetDateFieldFromCertificate(certificate, kSecOIDX509V1ValidityNotAfter);
+ CFDateRef notBefore = GetDateFieldFromCertificate(certificate, kSecOIDX509V1ValidityNotBefore);
+ CFDateRef now = CFDateCreate(kCFAllocatorDefault, CFAbsoluteTimeGetCurrent());
+
+ if (!notAfter || !notBefore || !now)
+ {
+ warnx("GetDateFieldFromCertificate() returned NULL");
+ result = true;
+ }
+ else
+ {
+ if (CFDateCompare(notBefore, now, NULL) != kCFCompareLessThan ||
+ CFDateCompare(now, notAfter, NULL) != kCFCompareLessThan)
+ result = true;
+ else
+ result = false;
+ }
+
+ CFRelease(notAfter);
+ CFRelease(notBefore);
+ CFRelease(now);
+ return result;
+}
+
+SecIdentityRef findIdentity(CertDataRef pCertDataTemplate)
+{
+ const void *keys[] = {
+ kSecClass,
+ kSecReturnRef,
+ kSecMatchLimit
+ };
+ const void *values[] = {
+ kSecClassIdentity,
+ kCFBooleanTrue,
+ kSecMatchLimitAll
+ };
+ CFArrayRef result = NULL;
+
+ CFDictionaryRef query = CFDictionaryCreate(NULL, keys, values,
+ sizeof(keys) / sizeof(*keys),
+ &kCFTypeDictionaryKeyCallBacks,
+ &kCFTypeDictionaryValueCallBacks);
+ OSStatus status = SecItemCopyMatching(query, (CFTypeRef*)&result);
+ CFRelease(query);
+ if (status != noErr)
+ {
+ warnx ("No identities in keychain found");
+ return NULL;
+ }
+
+ SecIdentityRef bestIdentity = NULL;
+ CFDateRef bestNotBeforeDate = NULL;
+
+ for (int i=0; i<CFArrayGetCount(result); i++)
+ {
+ SecIdentityRef identity = (SecIdentityRef)CFArrayGetValueAtIndex(result, i);
+ if (identity == NULL)
+ {
+ warnx ("identity == NULL");
+ continue;
+ }
+
+ SecCertificateRef certificate = NULL;
+ SecIdentityCopyCertificate (identity, &certificate);
+ if (certificate == NULL)
+ {
+ warnx ("SecIdentityCopyCertificate() returned NULL");
+ continue;
+ }
+
+ CertDataRef pCertData2 = createCertDataFromCertificate(certificate);
+ if (pCertData2 == NULL)
+ {
+ warnx ("createCertDataFromCertificate() returned NULL");
+ goto release_cert;
+ }
+ bool bMatches = certDataMatchesTemplate(pCertData2, pCertDataTemplate);
+ bool bExpired = certExpired(certificate);
+ destroyCertData(pCertData2);
+
+ if (bMatches && !bExpired)
+ {
+ CFDateRef notBeforeDate = GetDateFieldFromCertificate(certificate, kSecOIDX509V1ValidityNotBefore);
+ if (!notBeforeDate)
+ {
+ warnx ("GetDateFieldFromCertificate() returned NULL");
+ goto release_cert;
+ }
+ if (bestIdentity == NULL)
+ {
+ CFRetain(identity);
+ bestIdentity = identity;
+
+ bestNotBeforeDate = notBeforeDate;
+ CFRetain(notBeforeDate);
+ }
+ else if (CFDateCompare(bestNotBeforeDate, notBeforeDate, NULL) == kCFCompareLessThan)
+ {
+ CFRelease(bestIdentity);
+ CFRetain(identity);
+ bestIdentity = identity;
+
+ bestNotBeforeDate = notBeforeDate;
+ CFRetain(notBeforeDate);
+ }
+ CFRelease(notBeforeDate);
+ }
+ release_cert:
+ CFRelease(certificate);
+ }
+ CFRelease(result);
+
+ return bestIdentity;
+}
diff --git a/contrib/keychain-mcd/cert_data.h b/contrib/keychain-mcd/cert_data.h
new file mode 100644
index 0000000..407cca1
--- /dev/null
+++ b/contrib/keychain-mcd/cert_data.h
@@ -0,0 +1,46 @@
+/*
+ * OpenVPN -- An application to securely tunnel IP networks
+ * over a single UDP port, with support for SSL/TLS-based
+ * session authentication and key exchange,
+ * packet encryption, packet authentication, and
+ * packet compression.
+ *
+ * Copyright (C) 2010 Brian Raderman <brian@irregularexpression.org>
+ * Copyright (C) 2013-2015 Vasily Kulikov <segoon@openwall.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING included with this
+ * distribution); if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef __cert_data_h__
+#define __cert_data_h__
+
+#include <CoreFoundation/CoreFoundation.h>
+#include <Security/Security.h>
+
+typedef struct _CertData
+{
+ CFArrayRef subject;
+ CFArrayRef issuer;
+ CFStringRef serial;
+ CFStringRef md5, sha1;
+} CertData, *CertDataRef;
+
+CertDataRef createCertDataFromCertificate(SecCertificateRef certificate);
+CertDataRef createCertDataFromString(const char *description);
+void destroyCertData(CertDataRef pCertData);
+bool certDataMatchesTemplate(CertDataRef pCertData, CertDataRef pTemplate);
+void printCertData(CertDataRef pCertData);
+SecIdentityRef findIdentity(CertDataRef pCertDataTemplate);
+
+#endif
diff --git a/contrib/keychain-mcd/common_osx.c b/contrib/keychain-mcd/common_osx.c
new file mode 100644
index 0000000..3effa8b
--- /dev/null
+++ b/contrib/keychain-mcd/common_osx.c
@@ -0,0 +1,94 @@
+/*
+ * OpenVPN -- An application to securely tunnel IP networks
+ * over a single UDP port, with support for SSL/TLS-based
+ * session authentication and key exchange,
+ * packet encryption, packet authentication, and
+ * packet compression.
+ *
+ * Copyright (C) 2010 Brian Raderman <brian@irregularexpression.org>
+ * Copyright (C) 2013-2015 Vasily Kulikov <segoon@openwall.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING included with this
+ * distribution); if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/*
+#include "config.h"
+#include "syshead.h"
+#include "common.h"
+#include "buffer.h"
+#include "error.h"
+*/
+
+#include "common_osx.h"
+#include <err.h>
+
+void printCFString(CFStringRef str)
+{
+ CFIndex bufferLength = CFStringGetLength(str) + 1;
+ char *pBuffer = (char*)malloc(sizeof(char) * bufferLength);
+ CFStringGetCString(str, pBuffer, bufferLength, kCFStringEncodingUTF8);
+ warnx("%s\n", pBuffer);
+ free(pBuffer);
+}
+
+char* cfstringToCstr(CFStringRef str)
+{
+ CFIndex bufferLength = CFStringGetLength(str) + 1;
+ char *pBuffer = (char*)malloc(sizeof(char) * bufferLength);
+ CFStringGetCString(str, pBuffer, bufferLength, kCFStringEncodingUTF8);
+ return pBuffer;
+}
+
+void appendHexChar(CFMutableStringRef str, unsigned char halfByte)
+{
+ if (halfByte < 10)
+ {
+ CFStringAppendFormat (str, NULL, CFSTR("%d"), halfByte);
+ }
+ else
+ {
+ char tmp[2] = {'A'+halfByte-10, 0};
+ CFStringAppendCString(str, tmp, kCFStringEncodingUTF8);
+ }
+}
+
+CFStringRef createHexString(unsigned char *pData, int length)
+{
+ unsigned char byte, low, high;
+ int i;
+ CFMutableStringRef str = CFStringCreateMutable(NULL, 0);
+
+ for(i = 0;i < length;i++)
+ {
+ byte = pData[i];
+ low = byte & 0x0F;
+ high = (byte >> 4);
+
+ appendHexChar(str, high);
+ appendHexChar(str, low);
+
+ if (i != (length - 1))
+ CFStringAppendCString(str, " ", kCFStringEncodingUTF8);
+ }
+
+ return str;
+}
+
+void printHex(unsigned char *pData, int length)
+{
+ CFStringRef hexStr = createHexString(pData, length);
+ printCFString(hexStr);
+ CFRelease(hexStr);
+}
diff --git a/contrib/keychain-mcd/common_osx.h b/contrib/keychain-mcd/common_osx.h
new file mode 100644
index 0000000..4273548
--- /dev/null
+++ b/contrib/keychain-mcd/common_osx.h
@@ -0,0 +1,36 @@
+/*
+ * OpenVPN -- An application to securely tunnel IP networks
+ * over a single UDP port, with support for SSL/TLS-based
+ * session authentication and key exchange,
+ * packet encryption, packet authentication, and
+ * packet compression.
+ *
+ * Copyright (C) 2010 Brian Raderman <brian@irregularexpression.org>
+ * Copyright (C) 2013-2015 Vasily Kulikov <segoon@openwall.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING included with this
+ * distribution); if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __common_osx_h__
+#define __common_osx_h__
+
+#include <CoreFoundation/CoreFoundation.h>
+
+void printCFString(CFStringRef str);
+char* cfstringToCstr(CFStringRef str);
+CFStringRef createHexString(unsigned char *pData, int length);
+void printHex(unsigned char *pData, int length);
+
+#endif //__Common_osx_h__
diff --git a/contrib/keychain-mcd/crypto_osx.c b/contrib/keychain-mcd/crypto_osx.c
new file mode 100644
index 0000000..87ba09b
--- /dev/null
+++ b/contrib/keychain-mcd/crypto_osx.c
@@ -0,0 +1,75 @@
+/*
+ * OpenVPN -- An application to securely tunnel IP networks
+ * over a single UDP port, with support for SSL/TLS-based
+ * session authentication and key exchange,
+ * packet encryption, packet authentication, and
+ * packet compression.
+ *
+ * Copyright (C) 2010 Brian Raderman <brian@irregularexpression.org>
+ * Copyright (C) 2013-2015 Vasily Kulikov <segoon@openwall.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING included with this
+ * distribution); if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+#include <CommonCrypto/CommonDigest.h>
+#include <Security/SecKey.h>
+#include <Security/Security.h>
+
+#include "crypto_osx.h"
+#include <err.h>
+
+void printErrorMsg(const char *func, CFErrorRef error)
+{
+ CFStringRef desc = CFErrorCopyDescription(error);
+ warnx("%s failed: %s", func, CFStringGetCStringPtr(desc, kCFStringEncodingUTF8));
+ CFRelease(desc);
+}
+
+void printErrorStatusMsg(const char *func, OSStatus status)
+{
+ CFStringRef error;
+ error = SecCopyErrorMessageString(status, NULL);
+ if (error)
+ {
+ warnx("%s failed: %s", func, CFStringGetCStringPtr(error, kCFStringEncodingUTF8));
+ CFRelease(error);
+ }
+ else
+ warnx("%s failed: %X", func, (int)status);
+}
+
+void signData(SecIdentityRef identity, const uint8_t *from, int flen, uint8_t *to, size_t *tlen)
+{
+ SecKeyRef privateKey = NULL;
+ OSStatus status;
+
+ status = SecIdentityCopyPrivateKey(identity, &privateKey);
+ if (status != noErr)
+ {
+ printErrorStatusMsg("signData: SecIdentityCopyPrivateKey", status);
+ *tlen = 0;
+ return;
+ }
+
+ status = SecKeyRawSign(privateKey, kSecPaddingPKCS1, from, flen, to, tlen);
+ CFRelease(privateKey);
+ if (status != noErr)
+ {
+ printErrorStatusMsg("signData: SecKeyRawSign", status);
+ *tlen = 0;
+ return;
+ }
+}
diff --git a/contrib/keychain-mcd/crypto_osx.h b/contrib/keychain-mcd/crypto_osx.h
new file mode 100644
index 0000000..0da58b6
--- /dev/null
+++ b/contrib/keychain-mcd/crypto_osx.h
@@ -0,0 +1,44 @@
+/*
+ * OpenVPN -- An application to securely tunnel IP networks
+ * over a single UDP port, with support for SSL/TLS-based
+ * session authentication and key exchange,
+ * packet encryption, packet authentication, and
+ * packet compression.
+ *
+ * Copyright (C) 2010 Brian Raderman <brian@irregularexpression.org>
+ * Copyright (C) 2013-2015 Vasily Kulikov <segoon@openwall.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING included with this
+ * distribution); if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __crypto_osx_h__
+#define __crypto_osx_h__
+
+#include <CoreFoundation/CoreFoundation.h>
+#include <Security/Security.h>
+
+extern OSStatus SecKeyRawSign (
+ SecKeyRef key,
+ SecPadding padding,
+ const uint8_t *dataToSign,
+ size_t dataToSignLen,
+ uint8_t *sig,
+ size_t *sigLen
+);
+
+void signData(SecIdentityRef identity, const uint8_t *from, int flen, uint8_t *to, size_t *tlen);
+void printErrorMsg(const char *func, CFErrorRef error);
+
+#endif //__crypto_osx_h__
diff --git a/contrib/keychain-mcd/keychain-mcd.8 b/contrib/keychain-mcd/keychain-mcd.8
new file mode 100644
index 0000000..676b164
--- /dev/null
+++ b/contrib/keychain-mcd/keychain-mcd.8
@@ -0,0 +1,161 @@
+.TH keychain-mcd 8
+.SH NAME
+
+keychain-mcd \- Mac OS X Keychain management daemon for OpenVPN
+
+.SH SYNOPSIS
+
+.B keychain-mcd
+.I identity-template management-server-ip management-server-port
+[
+.I password-file
+]
+
+.SH DESCRIPTION
+
+.B keychain-mcd
+is Mac OS X Keychain management daemon for OpenVPN.
+It loads the certificate and private key from the Mac OSX Keychain (Mac OSX Only).
+.B keychain-mcd
+connects to OpenVPN via management interface and handles
+certificate and private key commands (namely
+.B NEED-CERTIFICATE
+and
+.B RSA-SIGN
+commands).
+
+.B keychain-mcd
+makes it possible to use any smart card supported by Mac OSX using the tokend interface, but also any
+kind of certificate, residing in the Keychain, where you have access to
+the private key. This option has been tested on the client side with an Aladdin eToken
+on Mac OSX Leopard and with software certificates stored in the Keychain on Mac OS X.
+
+Note that Mac OS X might need to present the user with an authentication GUI when the Keychain
+is accessed by keychain-mcd.
+
+Use
+.B keychain-mcd
+along with
+.B --management-external-key
+and/or
+.B --management-external-cert
+passed to
+.B openvpn.
+
+.SH OPTIONS
+
+.TP
+.BR identity-template
+
+A select string which is used to choose a keychain identity from
+Mac OS X Keychain or
+.I auto
+if the identity template is passed from openvpn.
+
+\fBSubject\fR, \fBIssuer\fR, \fBSerial\fR, \fBSHA1\fR, \fBMD5\fR selectors can be used.
+
+To select a certificate based on a string search in the
+certificate's subject and/or issuer:
+
+.nf
+
+"SUBJECT:c=US/o=Apple Inc./ou=me.com/cn=username ISSUER:c=US/o=Apple Computer, Inc./ou=Apple Computer Certificate Authority/cn=Apple .Mac Certificate Authority"
+
+.fi
+
+.I "Distinguished Name Component Abbreviations:"
+.br
+o = organization
+.br
+ou = organizational unit
+.br
+c = country
+.br
+l = locality
+.br
+st = state
+.br
+cn = common name
+.br
+e = email
+.br
+
+All of the distinguished name components are optional, although you do need to specify at least one of them. You can
+add spaces around the '/' and '=' characters, e.g. "SUBJECT: c = US / o = Apple Inc.". You do not need to specify
+both the subject and the issuer, one or the other will work fine.
+The identity searching algorithm will return the
+certificate it finds that matches all of the criteria you have specified.
+If there are several certificates matching all of the criteria then the youngest certificate is returned
+(i.e. with the greater "not before" validity field).
+You can also include the MD5 and/or SHA1 thumbprints and/or serial number
+along with the subject and issuer.
+
+To select a certificate based on certificate's MD5 or SHA1 thumbprint:
+
+.nf
+"SHA1: 30 F7 3A 7A B7 73 2A 98 54 33 4A A7 00 6F 6E AC EC D1 EF 02"
+
+"MD5: D5 F5 11 F1 38 EB 5F 4D CF 23 B6 94 E8 33 D8 B5"
+.fi
+
+Again, you can include both the SHA1 and the MD5 thumbprints, but you can also use just one of them.
+The thumbprint hex strings can easily be copy-and-pasted from the OSX Keychain Access GUI in the Applications/Utilities folder.
+The hex string comparison is not case sensitive.
+
+To select a certificate based on certificate's serial number:
+
+"Serial: 3E 9B 6F 02 00 00 00 01 1F 20"
+
+If
+.BR identity-template
+equals to
+.I auto
+then the actual identity template is
+obtained from argument of NEED-CERTIFICATE notification of openvpn.
+In this case the argument of NEED-CERTIFICATE must begin with 'macosx-keychain:' prefix
+and the rest of it must contain the actual identity template in the format described above.
+
+
+.TP
+.BR management-server-ip
+OpenVPN management IP to connect to.
+Both IPv4 and IPv6 addresses can be used.
+
+.TP
+.BR management-server-port
+OpenVPN management port to connect to.
+Use
+.B unix
+for
+.I management-server-port
+and socket path for
+.I management-server-ip
+to connect to a local unix socket.
+
+.TP
+.BR password-file
+
+Password file containing the management password on first line.
+The password will be used to connect to
+.B openvpn
+management interface.
+
+Pass
+.I password-file
+to
+.B keychain-mcd
+if
+.I pw-file
+was specified in
+.B --management
+option to
+.B openvpn.
+
+
+.SH AUTHOR
+
+Vasily Kulikov <segoon@openwall.com>
+
+.SH "SEE ALSO"
+
+.BR openvpn (8)
diff --git a/contrib/keychain-mcd/main.c b/contrib/keychain-mcd/main.c
new file mode 100644
index 0000000..2263b7d
--- /dev/null
+++ b/contrib/keychain-mcd/main.c
@@ -0,0 +1,255 @@
+/*
+ * OpenVPN -- An application to securely tunnel IP networks
+ * over a single UDP port, with support for SSL/TLS-based
+ * session authentication and key exchange,
+ * packet encryption, packet authentication, and
+ * packet compression.
+ *
+ * Copyright (C) 2015 Vasily Kulikov <segoon@openwall.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING included with this
+ * distribution); if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <sys/un.h>
+#include <err.h>
+#include <netdb.h>
+
+#include <Security/Security.h>
+#include <CoreServices/CoreServices.h>
+
+#include "cert_data.h"
+#include "crypto_osx.h"
+#include "../../src/openvpn/base64.h"
+
+
+SecIdentityRef template_to_identity(const char *template)
+{
+ SecIdentityRef identity;
+ CertDataRef pCertDataTemplate = createCertDataFromString(template);
+ if (pCertDataTemplate == NULL)
+ errx(1, "Bad certificate template");
+ identity = findIdentity(pCertDataTemplate);
+ if (identity == NULL)
+ errx(1, "No such identify");
+ fprintf(stderr, "Identity found\n");
+ destroyCertData(pCertDataTemplate);
+ return identity;
+}
+
+int connect_to_management_server(const char *ip, const char *port)
+{
+ int fd;
+ struct sockaddr_un addr_un;
+ struct sockaddr *addr;
+ size_t addr_len;
+
+ if (strcmp(port, "unix") == 0) {
+ addr = (struct sockaddr*)&addr_un;
+ addr_len = sizeof(addr_un);
+
+ addr_un.sun_family = AF_UNIX;
+ strncpy(addr_un.sun_path, ip, sizeof(addr_un.sun_path));
+ fd = socket(AF_UNIX, SOCK_STREAM, 0);
+ }
+ else {
+ int rv;
+ struct addrinfo *result;
+ struct addrinfo hints;
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_family = AF_UNSPEC;
+ hints.ai_socktype = SOCK_STREAM;
+
+ rv = getaddrinfo(ip, port, &hints, &result);
+ if (rv < 0)
+ errx(1, "getaddrinfo: %s", gai_strerror(rv));
+ if (result == NULL)
+ errx(1, "getaddrinfo returned 0 addressed");
+
+ /* Use the first found address */
+ fd = socket(result->ai_family, result->ai_socktype, result->ai_protocol);
+ addr = result->ai_addr;
+ addr_len = result->ai_addrlen;
+ }
+ if (fd < 0)
+ err(1, "socket");
+
+ if (connect(fd, addr, addr_len) < 0)
+ err(1, "connect");
+
+ return fd;
+}
+
+int is_prefix(const char *s, const char *prefix)
+{
+ return strncmp(s, prefix, strlen(prefix)) == 0;
+}
+
+void handle_rsasign(FILE *man_file, SecIdentityRef identity, const char *input)
+{
+ const char *input_b64 = strchr(input, ':') + 1;
+ char *input_binary;
+ int input_len;
+ char *output_binary;
+ size_t output_len;
+ char *output_b64;
+
+ input_len = strlen(input_b64)*8/6 + 4;
+ input_binary = malloc(input_len);
+ input_len = openvpn_base64_decode(input_b64, input_binary, input_len);
+ if (input_len < 0)
+ errx(1, "openvpn_base64_decode: overflow");
+
+ output_len = 1024;
+ output_binary = malloc(output_len);
+ signData(identity, (const uint8_t *)input_binary, input_len, (uint8_t *)output_binary, &output_len);
+ if (output_len == 0)
+ errx(1, "handle_rsasign: failed to sign data");
+
+ openvpn_base64_encode(output_binary, output_len, &output_b64);
+ fprintf(man_file, "rsa-sig\n%s\nEND\n", output_b64);
+ free(output_b64);
+ free(input_binary);
+ free(output_binary);
+
+ fprintf(stderr, "Handled RSA_SIGN command\n");
+}
+
+void handle_needcertificate(FILE *man_file, SecIdentityRef identity)
+{
+ OSStatus status;
+ SecCertificateRef certificate = NULL;
+ CFDataRef data;
+ const unsigned char *cert;
+ size_t cert_len;
+ char *result_b64, *tmp_b64;
+
+ status = SecIdentityCopyCertificate(identity, &certificate);
+ if (status != noErr) {
+ const char *msg = GetMacOSStatusErrorString(status);
+ err(1, "SecIdentityCopyCertificate() failed: %s", msg);
+ }
+
+ data = SecCertificateCopyData(certificate);
+ if (data == NULL)
+ err(1, "SecCertificateCopyData() returned NULL");
+
+ cert = CFDataGetBytePtr(data);
+ cert_len = CFDataGetLength(data);
+
+ openvpn_base64_encode(cert, cert_len, &result_b64);
+#if 0
+ fprintf(stderr, "certificate %s\n", result_b64);
+#endif
+
+ fprintf(man_file, "certificate\n");
+ fprintf(man_file, "-----BEGIN CERTIFICATE-----\n");
+ tmp_b64 = result_b64;
+ while (strlen(tmp_b64) > 64) {
+ fprintf(man_file, "%.64s\n", tmp_b64);
+ tmp_b64 += 64;
+ }
+ if (*tmp_b64)
+ fprintf(man_file, "%s\n", tmp_b64);
+ fprintf(man_file, "-----END CERTIFICATE-----\n");
+ fprintf(man_file, "END\n");
+
+ free(result_b64);
+ CFRelease(data);
+ CFRelease(certificate);
+
+ fprintf(stderr, "Handled NEED 'cert' command\n");
+}
+
+void management_loop(SecIdentityRef identity, int man_fd, const char *password)
+{
+ char *buffer = NULL;
+ size_t buffer_len = 0;
+ FILE *man = fdopen(man_fd, "w+");
+ if (man == 0)
+ err(1, "fdopen");
+
+ if (password)
+ fprintf(man, "%s\n", password);
+
+ while (1) {
+ if (getline(&buffer, &buffer_len, man) < 0)
+ err(1, "getline");
+#if 0
+ fprintf(stderr, "M: %s", buffer);
+#endif
+
+ if (is_prefix(buffer, ">RSA_SIGN:"))
+ handle_rsasign(man, identity, buffer);
+ if (is_prefix(buffer, ">NEED-CERTIFICATE")) {
+ if (!identity) {
+ const char prefix[] = ">NEED-CERTIFICATE:macosx-keychain:";
+ if (!is_prefix(buffer, prefix))
+ errx(1, "No identity template is passed via command line and " \
+ "NEED-CERTIFICATE management interface command " \
+ "misses 'macosx-keychain' prefix.");
+ identity = template_to_identity(buffer+strlen(prefix));
+ }
+ handle_needcertificate(man, identity);
+ }
+ if (is_prefix(buffer, ">FATAL"))
+ fprintf(stderr, "Fatal message from OpenVPN: %s\n", buffer+7);
+ if (is_prefix(buffer, ">INFO"))
+ fprintf(stderr, "INFO message from OpenVPN: %s\n", buffer+6);
+ }
+}
+
+char *read_password(const char *fname)
+{
+ char *password = NULL;
+ FILE *pwf = fopen(fname, "r");
+ size_t n = 0;
+
+ if (pwf == NULL)
+ errx(1, "fopen(%s) failed", fname);
+ if (getline(&password, &n, pwf) < 0)
+ err(1, "getline");
+ fclose(pwf);
+ return password;
+}
+
+int main(int argc, char* argv[])
+{
+ if (argc < 4)
+ err(1, "usage: %s <identity_template> <management_ip> <management_port> [<pw-file>]", argv[0]);
+
+ char *identity_template = argv[1];
+ char *s_ip = argv[2];
+ char *s_port = argv[3];
+ char *password = NULL;
+ int man_fd;
+
+ if (argc > 4) {
+ char *s_pw_file = argv[4];
+ password = read_password(s_pw_file);
+ }
+
+ SecIdentityRef identity = NULL;
+ if (strcmp(identity_template, "auto"))
+ identity = template_to_identity(identity_template);
+ man_fd = connect_to_management_server(s_ip, s_port);
+ fprintf(stderr, "Successfully connected to openvpn\n");
+
+ management_loop(identity, man_fd, password);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 09:45:24 +0000