summaryrefslogtreecommitdiff
path: root/indra/newview/llsechandler_basic.cpp
diff options
context:
space:
mode:
authorTofu Linden <tofu.linden@lindenlab.com>2010-04-07 10:37:07 +0100
committerTofu Linden <tofu.linden@lindenlab.com>2010-04-07 10:37:07 +0100
commit0bb3f144c0a6712a269246975635962b3b5f48d0 (patch)
treeba6c371a3c40f878d20eccac7065ac11a4a51f1d /indra/newview/llsechandler_basic.cpp
parent9523c70f9dd3b2db21f6578bbb2b1da6873004ea (diff)
Backed out changeset 63b699f90efd
Diffstat (limited to 'indra/newview/llsechandler_basic.cpp')
-rw-r--r--indra/newview/llsechandler_basic.cpp1586
1 files changed, 0 insertions, 1586 deletions
diff --git a/indra/newview/llsechandler_basic.cpp b/indra/newview/llsechandler_basic.cpp
deleted file mode 100644
index 51e250ffc6..0000000000
--- a/indra/newview/llsechandler_basic.cpp
+++ /dev/null
@@ -1,1586 +0,0 @@
-/**
- * @file llsechandler_basic.cpp
- * @brief Security API for services such as certificate handling
- * secure local storage, etc.
- *
- * $LicenseInfo:firstyear=2003&license=viewergpl$
- *
- * Copyright (c) 2003-2000, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlife.com/developers/opensource/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at http://secondlife.com/developers/opensource/flossexception
- *
-LLS * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
-
-
-#include "llviewerprecompiledheaders.h"
-#include "llsecapi.h"
-#include "llsechandler_basic.h"
-#include "llsdserialize.h"
-#include "llviewernetwork.h"
-#include "llxorcipher.h"
-#include "llfile.h"
-#include "lldir.h"
-#include "llviewercontrol.h"
-#include <vector>
-#include <ios>
-#include <openssl/ossl_typ.h>
-#include <openssl/x509.h>
-#include <openssl/x509v3.h>
-#include <openssl/pem.h>
-#include <openssl/asn1.h>
-#include <openssl/rand.h>
-#include <openssl/err.h>
-#include <iostream>
-#include <iomanip>
-#include <time.h>
-
-
-
-// 128 bits of salt data...
-#define STORE_SALT_SIZE 16
-#define BUFFER_READ_SIZE 256
-std::string cert_string_from_asn1_string(ASN1_STRING* value);
-std::string cert_string_from_octet_string(ASN1_OCTET_STRING* value);
-
-LLSD _basic_constraints_ext(X509* cert);
-LLSD _key_usage_ext(X509* cert);
-LLSD _ext_key_usage_ext(X509* cert);
-LLSD _subject_key_identifier_ext(X509 *cert);
-LLSD _authority_key_identifier_ext(X509* cert);
-
-LLBasicCertificate::LLBasicCertificate(const std::string& pem_cert)
-{
-
- // BIO_new_mem_buf returns a read only bio, but takes a void* which isn't const
- // so we need to cast it.
- BIO * pem_bio = BIO_new_mem_buf((void*)pem_cert.c_str(), pem_cert.length());
- if(pem_bio == NULL)
- {
- LL_WARNS("SECAPI") << "Could not allocate an openssl memory BIO." << LL_ENDL;
- throw LLInvalidCertificate(this);
- }
- mCert = NULL;
- PEM_read_bio_X509(pem_bio, &mCert, 0, NULL);
- BIO_free(pem_bio);
- if (!mCert)
- {
- throw LLInvalidCertificate(this);
- }
- _initLLSD();
-}
-
-
-LLBasicCertificate::LLBasicCertificate(X509* pCert)
-{
- if (!pCert || !pCert->cert_info)
- {
- throw LLInvalidCertificate(this);
- }
- mCert = X509_dup(pCert);
- _initLLSD();
-}
-
-LLBasicCertificate::~LLBasicCertificate()
-{
- if(mCert)
- {
- X509_free(mCert);
- }
-}
-
-//
-// retrieve the pem using the openssl functionality
-std::string LLBasicCertificate::getPem() const
-{
- char * pem_bio_chars = NULL;
- // a BIO is the equivalent of a 'std::stream', and
- // can be a file, mem stream, whatever. Grab a memory based
- // BIO for the result
- BIO *pem_bio = BIO_new(BIO_s_mem());
- if (!pem_bio)
- {
- LL_WARNS("SECAPI") << "Could not allocate an openssl memory BIO." << LL_ENDL;
- return std::string();
- }
- PEM_write_bio_X509(pem_bio, mCert);
- int length = BIO_get_mem_data(pem_bio, &pem_bio_chars);
- std::string result = std::string(pem_bio_chars, length);
- BIO_free(pem_bio);
- return result;
-}
-
-// get the DER encoding for the cert
-// DER is a binary encoding format for certs...
-std::vector<U8> LLBasicCertificate::getBinary() const
-{
- U8 * der_bio_data = NULL;
- // get a memory bio
- BIO *der_bio = BIO_new(BIO_s_mem());
- if (!der_bio)
- {
- LL_WARNS("SECAPI") << "Could not allocate an openssl memory BIO." << LL_ENDL;
- return std::vector<U8>();
- }
- i2d_X509_bio(der_bio, mCert);
- int length = BIO_get_mem_data(der_bio, &der_bio_data);
- std::vector<U8> result(length);
- // vectors are guranteed to be a contiguous chunk of memory.
- memcpy(&result[0], der_bio_data, length);
- BIO_free(der_bio);
- return result;
-}
-
-
-LLSD LLBasicCertificate::getLLSD() const
-{
- return mLLSDInfo;
-}
-
-// Initialize the LLSD info for the certificate
-LLSD& LLBasicCertificate::_initLLSD()
-{
-
- // call the various helpers to build the LLSD
- mLLSDInfo[CERT_SUBJECT_NAME] = cert_name_from_X509_NAME(X509_get_subject_name(mCert));
- mLLSDInfo[CERT_ISSUER_NAME] = cert_name_from_X509_NAME(X509_get_issuer_name(mCert));
- mLLSDInfo[CERT_SUBJECT_NAME_STRING] = cert_string_name_from_X509_NAME(X509_get_subject_name(mCert));
- mLLSDInfo[CERT_ISSUER_NAME_STRING] = cert_string_name_from_X509_NAME(X509_get_issuer_name(mCert));
- ASN1_INTEGER *sn = X509_get_serialNumber(mCert);
- if (sn != NULL)
- {
- mLLSDInfo[CERT_SERIAL_NUMBER] = cert_string_from_asn1_integer(sn);
- }
-
- mLLSDInfo[CERT_VALID_TO] = cert_date_from_asn1_time(X509_get_notAfter(mCert));
- mLLSDInfo[CERT_VALID_FROM] = cert_date_from_asn1_time(X509_get_notBefore(mCert));
- mLLSDInfo[CERT_SHA1_DIGEST] = cert_get_digest("sha1", mCert);
- mLLSDInfo[CERT_MD5_DIGEST] = cert_get_digest("md5", mCert);
- // add the known extensions
- mLLSDInfo[CERT_BASIC_CONSTRAINTS] = _basic_constraints_ext(mCert);
- mLLSDInfo[CERT_KEY_USAGE] = _key_usage_ext(mCert);
- mLLSDInfo[CERT_EXTENDED_KEY_USAGE] = _ext_key_usage_ext(mCert);
- mLLSDInfo[CERT_SUBJECT_KEY_IDENTFIER] = _subject_key_identifier_ext(mCert);
- mLLSDInfo[CERT_AUTHORITY_KEY_IDENTIFIER] = _authority_key_identifier_ext(mCert);
- return mLLSDInfo;
-}
-
-// Retrieve the basic constraints info
-LLSD _basic_constraints_ext(X509* cert)
-{
- LLSD result;
- BASIC_CONSTRAINTS *bs = (BASIC_CONSTRAINTS *)X509_get_ext_d2i(cert, NID_basic_constraints, NULL, NULL);
- if(bs)
- {
- result = LLSD::emptyMap();
- // Determines whether the cert can be used as a CA
- result[CERT_BASIC_CONSTRAINTS_CA] = (bool)bs->ca;
-
- if(bs->pathlen)
- {
- // the pathlen determines how deep a certificate chain can be from
- // this CA
- if((bs->pathlen->type == V_ASN1_NEG_INTEGER)
- || !bs->ca)
- {
- result[CERT_BASIC_CONSTRAINTS_PATHLEN] = 0;
- }
- else
- {
- result[CERT_BASIC_CONSTRAINTS_PATHLEN] = (int)ASN1_INTEGER_get(bs->pathlen);
- }
- }
-
- }
- return result;
-}
-
-// retrieve the key usage, which specifies how the cert can be used.
-//
-LLSD _key_usage_ext(X509* cert)
-{
- LLSD result;
- ASN1_STRING *usage_str = (ASN1_STRING *)X509_get_ext_d2i(cert, NID_key_usage, NULL, NULL);
- if(usage_str)
- {
- result = LLSD::emptyArray();
- long usage = 0;
- if(usage_str->length > 0)
- {
- usage = usage_str->data[0];
- if(usage_str->length > 1)
- {
- usage |= usage_str->data[1] << 8;
- }
- }
- ASN1_STRING_free(usage_str);
- if(usage)
- {
- if(usage & KU_DIGITAL_SIGNATURE) result.append(LLSD((std::string)CERT_KU_DIGITAL_SIGNATURE));
- if(usage & KU_NON_REPUDIATION) result.append(LLSD((std::string)CERT_KU_NON_REPUDIATION));
- if(usage & KU_KEY_ENCIPHERMENT) result.append(LLSD((std::string)CERT_KU_KEY_ENCIPHERMENT));
- if(usage & KU_DATA_ENCIPHERMENT) result.append(LLSD((std::string)CERT_KU_DATA_ENCIPHERMENT));
- if(usage & KU_KEY_AGREEMENT) result.append(LLSD((std::string)CERT_KU_KEY_AGREEMENT));
- if(usage & KU_KEY_CERT_SIGN) result.append(LLSD((std::string)CERT_KU_CERT_SIGN));
- if(usage & KU_CRL_SIGN) result.append(LLSD((std::string)CERT_KU_CRL_SIGN));
- if(usage & KU_ENCIPHER_ONLY) result.append(LLSD((std::string)CERT_KU_ENCIPHER_ONLY));
- if(usage & KU_DECIPHER_ONLY) result.append(LLSD((std::string)CERT_KU_DECIPHER_ONLY));
- }
- }
- return result;
-}
-
-// retrieve the extended key usage for the cert
-LLSD _ext_key_usage_ext(X509* cert)
-{
- LLSD result;
- EXTENDED_KEY_USAGE *eku = (EXTENDED_KEY_USAGE *)X509_get_ext_d2i(cert, NID_ext_key_usage, NULL, NULL);
- if(eku)
- {
- result = LLSD::emptyArray();
- while(sk_ASN1_OBJECT_num(eku))
- {
- ASN1_OBJECT *usage = sk_ASN1_OBJECT_pop(eku);
- if(usage)
- {
- int nid = OBJ_obj2nid(usage);
- if (nid)
- {
- std::string sn = OBJ_nid2sn(nid);
- result.append(sn);
- }
- ASN1_OBJECT_free(usage);
- }
- }
- }
- return result;
-}
-
-// retrieve the subject key identifier of the cert
-LLSD _subject_key_identifier_ext(X509 *cert)
-{
- LLSD result;
- ASN1_OCTET_STRING *skeyid = (ASN1_OCTET_STRING *)X509_get_ext_d2i(cert, NID_subject_key_identifier, NULL, NULL);
- if(skeyid)
- {
- result = cert_string_from_octet_string(skeyid);
- }
- return result;
-}
-
-// retrieve the authority key identifier of the cert
-LLSD _authority_key_identifier_ext(X509* cert)
-{
- LLSD result;
- AUTHORITY_KEYID *akeyid = (AUTHORITY_KEYID *)X509_get_ext_d2i(cert, NID_authority_key_identifier, NULL, NULL);
- if(akeyid)
- {
- result = LLSD::emptyMap();
- if(akeyid->keyid)
- {
- result[CERT_AUTHORITY_KEY_IDENTIFIER_ID] = cert_string_from_octet_string(akeyid->keyid);
- }
- if(akeyid->serial)
- {
- result[CERT_AUTHORITY_KEY_IDENTIFIER_SERIAL] = cert_string_from_asn1_integer(akeyid->serial);
- }
- }
-
- // we ignore the issuer name in the authority key identifier, we check the issue name via
- // the the issuer name entry in the cert.
-
-
- return result;
-}
-
-// retrieve an openssl x509 object,
-// which must be freed by X509_free
-X509* LLBasicCertificate::getOpenSSLX509() const
-{
- return X509_dup(mCert);
-}
-
-// generate a single string containing the subject or issuer
-// name of the cert.
-std::string cert_string_name_from_X509_NAME(X509_NAME* name)
-{
- char * name_bio_chars = NULL;
- // get a memory bio
- BIO *name_bio = BIO_new(BIO_s_mem());
- // stream the name into the bio. The name will be in the 'short name' format
- X509_NAME_print_ex(name_bio, name, 0, XN_FLAG_RFC2253);
- int length = BIO_get_mem_data(name_bio, &name_bio_chars);
- std::string result = std::string(name_bio_chars, length);
- BIO_free(name_bio);
- return result;
-}
-
-// generate an LLSD from a certificate name (issuer or subject name).
-// the name will be strings indexed by the 'long form'
-LLSD cert_name_from_X509_NAME(X509_NAME* name)
-{
- LLSD result = LLSD::emptyMap();
- int name_entries = X509_NAME_entry_count(name);
- for (int entry_index=0; entry_index < name_entries; entry_index++)
- {
- char buffer[32];
- X509_NAME_ENTRY *entry = X509_NAME_get_entry(name, entry_index);
-
- std::string name_value = std::string((const char*)M_ASN1_STRING_data(X509_NAME_ENTRY_get_data(entry)),
- M_ASN1_STRING_length(X509_NAME_ENTRY_get_data(entry)));
-
- ASN1_OBJECT* name_obj = X509_NAME_ENTRY_get_object(entry);
- OBJ_obj2txt(buffer, sizeof(buffer), name_obj, 0);
- std::string obj_buffer_str = std::string(buffer);
- result[obj_buffer_str] = name_value;
- }
-
- return result;
-}
-
-// Generate a string from an ASN1 integer. ASN1 Integers are
-// bignums, so they can be 'infinitely' long, therefore we
-// cannot simply use a conversion to U64 or something.
-// We retrieve as a readable string for UI
-
-std::string cert_string_from_asn1_integer(ASN1_INTEGER* value)
-{
- std::string result;
- BIGNUM *bn = ASN1_INTEGER_to_BN(value, NULL);
- if(bn)
- {
- char * ascii_bn = BN_bn2hex(bn);
-
- if(ascii_bn)
- {
- result = ascii_bn;
- OPENSSL_free(ascii_bn);
- }
- BN_free(bn);
- }
- return result;
-}
-
-// Generate a string from an OCTET string.
-// we retrieve as a
-
-std::string cert_string_from_octet_string(ASN1_OCTET_STRING* value)
-{
-
- std::stringstream result;
- result << std::hex << std::setprecision(2);
- for (int i=0; i < value->length; i++)
- {
- if (i != 0)
- {
- result << ":";
- }
- result << std::setfill('0') << std::setw(2) << (int)value->data[i];
- }
- return result.str();
-}
-
-// Generate a string from an ASN1 integer. ASN1 Integers are
-// bignums, so they can be 'infinitely' long, therefore we
-// cannot simply use a conversion to U64 or something.
-// We retrieve as a readable string for UI
-
-std::string cert_string_from_asn1_string(ASN1_STRING* value)
-{
- char * string_bio_chars = NULL;
- std::string result;
- // get a memory bio
- BIO *string_bio = BIO_new(BIO_s_mem());
- if(!string_bio)
- {
- // stream the name into the bio. The name will be in the 'short name' format
- ASN1_STRING_print_ex(string_bio, value, ASN1_STRFLGS_RFC2253);
- int length = BIO_get_mem_data(string_bio, &string_bio_chars);
- result = std::string(string_bio_chars, length);
- BIO_free(string_bio);
- }
- else
- {
- LL_WARNS("SECAPI") << "Could not allocate an openssl memory BIO." << LL_ENDL;
- }
-
- return result;
-}
-
-// retrieve a date structure from an ASN1 time, for
-// validity checking.
-LLDate cert_date_from_asn1_time(ASN1_TIME* asn1_time)
-{
-
- struct tm timestruct = {0};
- int i = asn1_time->length;
-
- if (i < 10)
- {
- return LLDate();
- }
- // convert the date from the ASN1 time (which is a string in ZULU time), to
- // a timeval.
- timestruct.tm_year = (asn1_time->data[0]-'0') * 10 + (asn1_time->data[1]-'0');
-
- /* Deal with Year 2000 */
- if (timestruct.tm_year < 70)
- timestruct.tm_year += 100;
-
- timestruct.tm_mon = (asn1_time->data[2]-'0') * 10 + (asn1_time->data[3]-'0') - 1;
- timestruct.tm_mday = (asn1_time->data[4]-'0') * 10 + (asn1_time->data[5]-'0');
- timestruct.tm_hour = (asn1_time->data[6]-'0') * 10 + (asn1_time->data[7]-'0');
- timestruct.tm_min = (asn1_time->data[8]-'0') * 10 + (asn1_time->data[9]-'0');
- timestruct.tm_sec = (asn1_time->data[10]-'0') * 10 + (asn1_time->data[11]-'0');
-
-#if LL_WINDOWS
- return LLDate((F64)_mkgmtime(&timestruct));
-#else // LL_WINDOWS
- return LLDate((F64)timegm(&timestruct));
-#endif // LL_WINDOWS
-}
-
-
-// Generate a string containing a digest. The digest time is 'ssh1' or
-// 'md5', and the resulting string is of the form "aa:12:5c:' and so on
-std::string cert_get_digest(const std::string& digest_type, X509 *cert)
-{
- unsigned char digest_data[BUFFER_READ_SIZE];
- unsigned int len = sizeof(digest_data);
- std::stringstream result;
- const EVP_MD* digest = NULL;
- // we could use EVP_get_digestbyname, but that requires initializer code which
- // would require us to complicate things by plumbing it into the system.
- if (digest_type == "md5")
- {
- digest = EVP_md5();
- }
- else if (digest_type == "sha1")
- {
- digest = EVP_sha1();
- }
- else
- {
- return std::string();
- }
-
- X509_digest(cert, digest, digest_data, &len);
- result << std::hex << std::setprecision(2);
- for (unsigned int i=0; i < len; i++)
- {
- if (i != 0)
- {
- result << ":";
- }
- result << std::setfill('0') << std::setw(2) << (int)digest_data[i];
- }
- return result.str();
-}
-
-
-// class LLBasicCertificateVector
-// This class represents a list of certificates, implemented by a vector of certificate pointers.
-// it contains implementations of the virtual functions for iterators, search, add, remove, etc.
-//
-
-// Find a certificate in the list.
-// It will find a cert that has minimally the params listed, with the values being the same
-LLBasicCertificateVector::iterator LLBasicCertificateVector::find(const LLSD& params)
-{
- BOOL found = FALSE;
- // loop through the entire vector comparing the values in the certs
- // against those passed in via the params.
- // params should be a map. Only the items specified in the map will be
- // checked, but they must match exactly, even if they're maps or arrays.
-
- for(iterator cert = begin();
- cert != end();
- cert++)
- {
-
- found= TRUE;
- LLSD cert_info = (*cert)->getLLSD();
- for (LLSD::map_const_iterator param = params.beginMap();
- param != params.endMap();
- param++)
- {
-
- if (!cert_info.has((std::string)param->first) ||
- (!valueCompareLLSD(cert_info[(std::string)param->first], param->second)))
- {
- found = FALSE;
- break;
- }
- }
- if (found)
- {
- return (cert);
- }
- }
- return end();
-}
-
-// Insert a certificate into the store. If the certificate already
-// exists in the store, nothing is done.
-void LLBasicCertificateVector::insert(iterator _iter,
- LLPointer<LLCertificate> cert)
-{
- LLSD cert_info = cert->getLLSD();
- if (cert_info.isMap() && cert_info.has(CERT_SHA1_DIGEST))
- {
- LLSD existing_cert_info = LLSD::emptyMap();
- existing_cert_info[CERT_MD5_DIGEST] = cert_info[CERT_MD5_DIGEST];
- if(find(existing_cert_info) == end())
- {
- BasicIteratorImpl *basic_iter = dynamic_cast<BasicIteratorImpl*>(_iter.mImpl.get());
- mCerts.insert(basic_iter->mIter, cert);
- }
- }
-}
-
-// remove a certificate from the store
-LLPointer<LLCertificate> LLBasicCertificateVector::erase(iterator _iter)
-{
-
- if (_iter != end())
- {
- BasicIteratorImpl *basic_iter = dynamic_cast<BasicIteratorImpl*>(_iter.mImpl.get());
- LLPointer<LLCertificate> result = (*_iter);
- mCerts.erase(basic_iter->mIter);
- return result;
- }
- return NULL;
-}
-
-
-//
-// LLBasicCertificateStore
-// This class represents a store of CA certificates. The basic implementation
-// uses a pem file such as the legacy CA.pem stored in the existing
-// SL implementation.
-LLBasicCertificateStore::LLBasicCertificateStore(const std::string& filename)
-{
- mFilename = filename;
- load_from_file(filename);
-}
-
-void LLBasicCertificateStore::load_from_file(const std::string& filename)
-{
- // scan the PEM file extracting each certificate
- BIO* file_bio = BIO_new(BIO_s_file());
- if(file_bio)
- {
- if (BIO_read_filename(file_bio, filename.c_str()) > 0)
- {
- X509 *cert_x509 = NULL;
- while((PEM_read_bio_X509(file_bio, &cert_x509, 0, NULL)) &&
- (cert_x509 != NULL))
- {
- try
- {
- add(new LLBasicCertificate(cert_x509));
- }
- catch (...)
- {
- LL_WARNS("SECAPI") << "Failure creating certificate from the certificate store file." << LL_ENDL;
- }
- X509_free(cert_x509);
- cert_x509 = NULL;
- }
- BIO_free(file_bio);
- }
- }
- else
- {
- LL_WARNS("SECAPI") << "Could not allocate a file BIO" << LL_ENDL;
- }
-}
-
-
-LLBasicCertificateStore::~LLBasicCertificateStore()
-{
-}
-
-
-// persist the store
-void LLBasicCertificateStore::save()
-{
- llofstream file_store(mFilename, llofstream::binary);
- if(!file_store.fail())
- {
- for(iterator cert = begin();
- cert != end();
- cert++)
- {
- std::string pem = (*cert)->getPem();
- if(!pem.empty())
- {
- file_store << (*cert)->getPem() << std::endl;
- }
- }
- file_store.close();
- }
- else
- {
- LL_WARNS("SECAPI") << "Could not open certificate store " << mFilename << "for save" << LL_ENDL;
- }
-}
-
-// return the store id
-std::string LLBasicCertificateStore::storeId() const
-{
- // this is the basic handler which uses the CA.pem store,
- // so we ignore this.
- return std::string("");
-}
-
-
-//
-// LLBasicCertificateChain
-// This class represents a chain of certs, each cert being signed by the next cert
-// in the chain. Certs must be properly signed by the parent
-LLBasicCertificateChain::LLBasicCertificateChain(const X509_STORE_CTX* store)
-{
-
- // we're passed in a context, which contains a cert, and a blob of untrusted
- // certificates which compose the chain.
- if((store == NULL) || (store->cert == NULL))
- {
- LL_WARNS("SECAPI") << "An invalid store context was passed in when trying to create a certificate chain" << LL_ENDL;
- return;
- }
- // grab the child cert
- LLPointer<LLCertificate> current = new LLBasicCertificate(store->cert);
-
- add(current);
- if(store->untrusted != NULL)
- {
- // if there are other certs in the chain, we build up a vector
- // of untrusted certs so we can search for the parents of each
- // consecutive cert.
- LLBasicCertificateVector untrusted_certs;
- for(int i = 0; i < sk_X509_num(store->untrusted); i++)
- {
- LLPointer<LLCertificate> cert = new LLBasicCertificate(sk_X509_value(store->untrusted, i));
- untrusted_certs.add(cert);
-
- }
- while(untrusted_certs.size() > 0)
- {
- LLSD find_data = LLSD::emptyMap();
- LLSD cert_data = current->getLLSD();
- // we simply build the chain via subject/issuer name as the
- // client should not have passed in multiple CA's with the same
- // subject name. If they did, it'll come out in the wash during
- // validation.
- find_data[CERT_SUBJECT_NAME_STRING] = cert_data[CERT_ISSUER_NAME_STRING];
- LLBasicCertificateVector::iterator issuer = untrusted_certs.find(find_data);
- if (issuer != untrusted_certs.end())
- {
- current = untrusted_certs.erase(issuer);
- add(current);
- }
- else
- {
- break;
- }
- }
- }
-}
-
-
-// subdomain wildcard specifiers can be divided into 3 parts
-// the part before the first *, the part after the first * but before
-// the second *, and the part after the second *.
-// It then iterates over the second for each place in the string
-// that it matches. ie if the subdomain was testfoofoobar, and
-// the wildcard was test*foo*bar, it would match test, then
-// recursively match foofoobar and foobar
-
-bool _cert_subdomain_wildcard_match(const std::string& subdomain,
- const std::string& wildcard)
-{
- // split wildcard into the portion before the *, and the portion after
-
- int wildcard_pos = wildcard.find_first_of('*');
- // check the case where there is no wildcard.
- if(wildcard_pos == wildcard.npos)
- {
- return (subdomain == wildcard);
- }
-
- // we need to match the first part of the subdomain string up to the wildcard
- // position
- if(subdomain.substr(0, wildcard_pos) != wildcard.substr(0, wildcard_pos))
- {
- // the first portions of the strings didn't match
- return FALSE;
- }
-
- // as the portion of the wildcard string before the * matched, we need to check the
- // portion afterwards. Grab that portion.
- std::string new_wildcard_string = wildcard.substr( wildcard_pos+1, wildcard.npos);
- if(new_wildcard_string.empty())
- {
- // we had nothing after the *, so it's an automatic match
- return TRUE;
- }
-
- // grab the portion of the remaining wildcard string before the next '*'. We need to find this
- // within the remaining subdomain string. and then recursively check.
- std::string new_wildcard_match_string = new_wildcard_string.substr(0, new_wildcard_string.find_first_of('*'));
-
- // grab the portion of the subdomain after the part that matched the initial wildcard portion
- std::string new_subdomain = subdomain.substr(wildcard_pos, subdomain.npos);
-
- // iterate through the current subdomain, finding instances of the match string.
- int sub_pos = new_subdomain.find_first_of(new_wildcard_match_string);
- while(sub_pos != std::string::npos)
- {
- new_subdomain = new_subdomain.substr(sub_pos, std::string::npos);
- if(_cert_subdomain_wildcard_match(new_subdomain, new_wildcard_string))
- {
- return TRUE;
- }
- sub_pos = new_subdomain.find_first_of(new_wildcard_match_string, 1);
-
-
- }
- // didn't find any instances of the match string that worked in the subdomain, so fail.
- return FALSE;
-}
-
-
-// RFC2459 does not address wildcards as part of it's name matching
-// specification, and there is no RFC specifying wildcard matching,
-// RFC2818 does a few statements about wildcard matching, but is very
-// general. Generally, wildcard matching is per implementation, although
-// it's pretty similar.
-// in our case, we use the '*' wildcard character only, within each
-// subdomain. The hostname and the CN specification should have the
-// same number of subdomains.
-// We then iterate that algorithm over each subdomain.
-bool _cert_hostname_wildcard_match(const std::string& hostname, const std::string& common_name)
-{
- std::string new_hostname = hostname;
- std::string new_cn = common_name;
- int subdomain_pos = new_hostname.find_first_of('.');
- int subcn_pos = new_cn.find_first_of('.');
-
- while((subcn_pos != std::string::npos) && (subdomain_pos != std::string::npos))
- {
- // snip out the first subdomain and cn element
-
- if(!_cert_subdomain_wildcard_match(new_hostname.substr(0, subdomain_pos),
- new_cn.substr(0, subcn_pos)))
- {
- return FALSE;
- }
- new_hostname = new_hostname.substr(subdomain_pos+1, std::string::npos);
- new_cn = new_cn.substr(subcn_pos+1, std::string::npos);
- subdomain_pos = new_hostname.find_first_of('.');
- subcn_pos = new_cn.find_first_of('.');
- }
- return _cert_subdomain_wildcard_match(new_hostname, new_cn);
-
-}
-
-// validate that the LLSD array in llsd_set contains the llsd_value
-bool _LLSDArrayIncludesValue(const LLSD& llsd_set, LLSD llsd_value)
-{
- for(LLSD::array_const_iterator set_value = llsd_set.beginArray();
- set_value != llsd_set.endArray();
- set_value++)
- {
- if(valueCompareLLSD((*set_value), llsd_value))
- {
- return TRUE;
- }
- }
- return FALSE;
-}
-
-void _validateCert(int validation_policy,
- const LLPointer<LLCertificate> cert,
- const LLSD& validation_params,
- int depth)
-{
-
- LLSD current_cert_info = cert->getLLSD();
- // check basic properties exist in the cert
- if(!current_cert_info.has(CERT_SUBJECT_NAME) || !current_cert_info.has(CERT_SUBJECT_NAME_STRING))
- {
- throw LLCertException(cert, "Cert doesn't have a Subject Name");
- }
-
- if(!current_cert_info.has(CERT_ISSUER_NAME_STRING))
- {
- throw LLCertException(cert, "Cert doesn't have an Issuer Name");
- }
-
- // check basic properties exist in the cert
- if(!current_cert_info.has(CERT_VALID_FROM) || !current_cert_info.has(CERT_VALID_TO))
- {
- throw LLCertException(cert, "Cert doesn't have an expiration period");
- }
- if (!current_cert_info.has(CERT_SHA1_DIGEST))
- {
- throw LLCertException(cert, "No SHA1 digest");
- }
-
- if (validation_policy & VALIDATION_POLICY_TIME)
- {
-
- LLDate validation_date(time(NULL));
- if(validation_params.has(CERT_VALIDATION_DATE))
- {
- validation_date = validation_params[CERT_VALIDATION_DATE];
- }
-
- if((validation_date < current_cert_info[CERT_VALID_FROM].asDate()) ||
- (validation_date > current_cert_info[CERT_VALID_TO].asDate()))
- {
- throw LLCertValidationExpirationException(cert, validation_date);
- }
- }
- if (validation_policy & VALIDATION_POLICY_SSL_KU)
- {
- if (current_cert_info.has(CERT_KEY_USAGE) && current_cert_info[CERT_KEY_USAGE].isArray() &&
- (!(_LLSDArrayIncludesValue(current_cert_info[CERT_KEY_USAGE],
- LLSD((std::string)CERT_KU_DIGITAL_SIGNATURE))) ||
- !(_LLSDArrayIncludesValue(current_cert_info[CERT_KEY_USAGE],
- LLSD((std::string)CERT_KU_KEY_ENCIPHERMENT)))))
- {
- throw LLCertKeyUsageValidationException(cert);
- }
- // only validate EKU if the cert has it
- if(current_cert_info.has(CERT_EXTENDED_KEY_USAGE) && current_cert_info[CERT_EXTENDED_KEY_USAGE].isArray() &&
- (!_LLSDArrayIncludesValue(current_cert_info[CERT_EXTENDED_KEY_USAGE],
- LLSD((std::string)CERT_EKU_SERVER_AUTH))))
- {
- throw LLCertKeyUsageValidationException(cert);
- }
- }
- if (validation_policy & VALIDATION_POLICY_CA_KU)
- {
- if (current_cert_info.has(CERT_KEY_USAGE) && current_cert_info[CERT_KEY_USAGE].isArray() &&
- (!_LLSDArrayIncludesValue(current_cert_info[CERT_KEY_USAGE],
- (std::string)CERT_KU_CERT_SIGN)))
- {
- throw LLCertKeyUsageValidationException(cert);
- }
- }
-
- // validate basic constraints
- if ((validation_policy & VALIDATION_POLICY_CA_BASIC_CONSTRAINTS) &&
- current_cert_info.has(CERT_BASIC_CONSTRAINTS) &&
- current_cert_info[CERT_BASIC_CONSTRAINTS].isMap())
- {
- if(!current_cert_info[CERT_BASIC_CONSTRAINTS].has(CERT_BASIC_CONSTRAINTS_CA) ||
- !current_cert_info[CERT_BASIC_CONSTRAINTS][CERT_BASIC_CONSTRAINTS_CA])
- {
- throw LLCertBasicConstraintsValidationException(cert);
- }
- if (current_cert_info[CERT_BASIC_CONSTRAINTS].has(CERT_BASIC_CONSTRAINTS_PATHLEN) &&
- ((current_cert_info[CERT_BASIC_CONSTRAINTS][CERT_BASIC_CONSTRAINTS_PATHLEN].asInteger() != 0) &&
- (depth > current_cert_info[CERT_BASIC_CONSTRAINTS][CERT_BASIC_CONSTRAINTS_PATHLEN].asInteger())))
- {
- throw LLCertBasicConstraintsValidationException(cert);
- }
- }
-}
-
-bool _verify_signature(LLPointer<LLCertificate> parent,
- LLPointer<LLCertificate> child)
-{
- bool verify_result = FALSE;
- LLSD cert1 = parent->getLLSD();
- LLSD cert2 = child->getLLSD();
- X509 *signing_cert = parent->getOpenSSLX509();
- X509 *child_cert = child->getOpenSSLX509();
- if((signing_cert != NULL) && (child_cert != NULL))
- {
- EVP_PKEY *pkey = X509_get_pubkey(signing_cert);
-
-
- if(pkey)
- {
- int verify_code = X509_verify(child_cert, pkey);
- verify_result = ( verify_code > 0);
- EVP_PKEY_free(pkey);
- }
- else
- {
- LL_WARNS("SECAPI") << "Could not validate the cert chain signature, as the public key of the signing cert could not be retrieved" << LL_ENDL;
- }
-
- }
- else
- {
- LL_WARNS("SECAPI") << "Signature verification failed as there are no certs in the chain" << LL_ENDL;
- }
- if(child_cert)
- {
- X509_free(child_cert);
- }
- if(signing_cert)
- {
- X509_free(signing_cert);
- }
- return verify_result;
-}
-
-// validate the certificate chain against a store.
-// There are many aspects of cert validatioin policy involved in
-// trust validation. The policies in this validation algorithm include
-// * Hostname matching for SSL certs
-// * Expiration time matching
-// * Signature validation
-// * Chain trust (is the cert chain trusted against the store)
-// * Basic constraints
-// * key usage and extended key usage
-// TODO: We should add 'authority key identifier' for chaining.
-// This algorithm doesn't simply validate the chain by itself
-// and verify the last cert is in the certificate store, or points
-// to a cert in the store. It validates whether any cert in the chain
-// is trusted in the store, even if it's not the last one.
-void LLBasicCertificateChain::validate(int validation_policy,
- LLPointer<LLCertificateStore> ca_store,
- const LLSD& validation_params)
-{
-
- if(size() < 1)
- {
- throw LLCertException(NULL, "No certs in chain");
- }
- iterator current_cert = begin();
- LLSD current_cert_info = (*current_cert)->getLLSD();
- LLSD validation_date;
- if (validation_params.has(CERT_VALIDATION_DATE))
- {
- validation_date = validation_params[CERT_VALIDATION_DATE];
- }
-
- if (validation_policy & VALIDATION_POLICY_HOSTNAME)
- {
- if(!validation_params.has(CERT_HOSTNAME))
- {
- throw LLCertException((*current_cert), "No hostname passed in for validation");
- }
- if(!current_cert_info.has(CERT_SUBJECT_NAME) || !current_cert_info[CERT_SUBJECT_NAME].has(CERT_NAME_CN))
- {
- throw LLInvalidCertificate((*current_cert));
- }
-
- LL_INFOS("SECAPI") << "Validating the hostname " << validation_params[CERT_HOSTNAME].asString() <<
- "against the cert CN " << current_cert_info[CERT_SUBJECT_NAME][CERT_NAME_CN].asString() << LL_ENDL;
- if(!_cert_hostname_wildcard_match(validation_params[CERT_HOSTNAME].asString(),
- current_cert_info[CERT_SUBJECT_NAME][CERT_NAME_CN].asString()))
- {
- throw LLCertValidationHostnameException(validation_params[CERT_HOSTNAME].asString(),
- (*current_cert));
- }
- }
-
-
- int depth = 0;
- LLPointer<LLCertificate> previous_cert;
- // loop through the cert chain, validating the current cert against the next one.
- while(current_cert != end())
- {
-
- int local_validation_policy = validation_policy;
- if(current_cert == begin())
- {
- // for the child cert, we don't validate CA stuff
- local_validation_policy &= ~(VALIDATION_POLICY_CA_KU |
- VALIDATION_POLICY_CA_BASIC_CONSTRAINTS);
- }
- else
- {
- // for non-child certs, we don't validate SSL Key usage
- local_validation_policy &= ~VALIDATION_POLICY_SSL_KU;
- if(!_verify_signature((*current_cert),
- previous_cert))
- {
- throw LLCertValidationInvalidSignatureException(previous_cert);
- }
- }
- _validateCert(local_validation_policy,
- (*current_cert),
- validation_params,
- depth);
-
- // look for a CA in the CA store that may belong to this chain.
- LLSD cert_llsd = (*current_cert)->getLLSD();
- LLSD cert_search_params = LLSD::emptyMap();
- // is the cert itself in the store?
- cert_search_params[CERT_SHA1_DIGEST] = cert_llsd[CERT_SHA1_DIGEST];
- LLCertificateStore::iterator found_store_cert = ca_store->find(cert_search_params);
- if(found_store_cert != ca_store->end())
- {
- return;
- }
-
- // is the parent in the cert store?
-
- cert_search_params = LLSD::emptyMap();
- cert_search_params[CERT_SUBJECT_NAME_STRING] = cert_llsd[CERT_ISSUER_NAME_STRING];
- if (cert_llsd.has(CERT_AUTHORITY_KEY_IDENTIFIER))
- {
- LLSD cert_aki = cert_llsd[CERT_AUTHORITY_KEY_IDENTIFIER];
- if(cert_aki.has(CERT_AUTHORITY_KEY_IDENTIFIER_ID))
- {
- cert_search_params[CERT_SUBJECT_KEY_IDENTFIER] = cert_aki[CERT_AUTHORITY_KEY_IDENTIFIER_ID];
- }
- if(cert_aki.has(CERT_AUTHORITY_KEY_IDENTIFIER_SERIAL))
- {
- cert_search_params[CERT_SERIAL_NUMBER] = cert_aki[CERT_AUTHORITY_KEY_IDENTIFIER_SERIAL];
- }
- }
- found_store_cert = ca_store->find(cert_search_params);
-
- if(found_store_cert != ca_store->end())
- {
- LLSD foo = (*found_store_cert)->getLLSD();
- // validate the store cert against the depth
- _validateCert(validation_policy & VALIDATION_POLICY_CA_BASIC_CONSTRAINTS,
- (*found_store_cert),
- LLSD(),
- depth);
-
- // verify the signature of the CA
- if(!_verify_signature((*found_store_cert),
- (*current_cert)))
- {
- throw LLCertValidationInvalidSignatureException(*current_cert);
- }
- // successfully validated.
- return;
- }
- previous_cert = (*current_cert);
- current_cert++;
- depth++;
- }
- if (validation_policy & VALIDATION_POLICY_TRUSTED)
- {
- LLPointer<LLCertificate> untrusted_ca_cert = (*this)[size()-1];
- // we reached the end without finding a trusted cert.
- throw LLCertValidationTrustException((*this)[size()-1]);
-
- }
-}
-
-
-// LLSecAPIBasicHandler Class
-// Interface handler class for the various security storage handlers.
-
-// We read the file on construction, and write it on destruction. This
-// means multiple processes cannot modify the datastore.
-LLSecAPIBasicHandler::LLSecAPIBasicHandler(const std::string& protected_data_file,
- const std::string& legacy_password_path)
-{
- mProtectedDataFilename = protected_data_file;
- mProtectedDataMap = LLSD::emptyMap();
- mLegacyPasswordPath = legacy_password_path;
-
-}
-
-LLSecAPIBasicHandler::LLSecAPIBasicHandler()
-{
-}
-
-
-void LLSecAPIBasicHandler::init()
-{
- mProtectedDataMap = LLSD::emptyMap();
- if (mProtectedDataFilename.length() == 0)
- {
- mProtectedDataFilename = gDirUtilp->getExpandedFilename(LL_PATH_USER_SETTINGS,
- "bin_conf.dat");
- mLegacyPasswordPath = gDirUtilp->getExpandedFilename(LL_PATH_USER_SETTINGS, "password.dat");
-
- mProtectedDataFilename = gDirUtilp->getExpandedFilename(LL_PATH_USER_SETTINGS,
- "bin_conf.dat");
- std::string store_file = gDirUtilp->getExpandedFilename(LL_PATH_USER_SETTINGS,
- "CA.pem");
- // copy the CA file to a user writable location so we can manipulate it.
- // for this provider, by using a user writable file, there is a risk that
- // an attacking program can modify the file, but OS dependent providers
- // will reduce that risk.
- // by using a user file, modifications will be limited to one user if
- // we read-only the main file
- if (!LLFile::isfile(store_file))
- {
-
- std::string ca_file_path = gDirUtilp->getExpandedFilename(LL_PATH_APP_SETTINGS, "CA.pem");
- llifstream ca_file(ca_file_path.c_str(), llifstream::binary | llifstream::in);
- llofstream copied_store_file(store_file.c_str(), llofstream::binary | llofstream::out);
-
- while(!ca_file.fail())
- {
- char buffer[BUFFER_READ_SIZE];
- ca_file.read(buffer, sizeof(buffer));
- copied_store_file.write(buffer, ca_file.gcount());
- }
- ca_file.close();
- copied_store_file.close();
- }
- LL_INFOS("SECAPI") << "Loading certificate store from " << store_file << LL_ENDL;
- mStore = new LLBasicCertificateStore(store_file);
- }
- _readProtectedData(); // initialize mProtectedDataMap
- // may throw LLProtectedDataException if saved datamap is not decryptable
-}
-LLSecAPIBasicHandler::~LLSecAPIBasicHandler()
-{
- _writeProtectedData();
-}
-
-void LLSecAPIBasicHandler::_readProtectedData()
-{
- // attempt to load the file into our map
- LLPointer<LLSDParser> parser = new LLSDXMLParser();
- llifstream protected_data_stream(mProtectedDataFilename.c_str(),
- llifstream::binary);
-
- if (!protected_data_stream.fail()) {
- int offset;
- U8 salt[STORE_SALT_SIZE];
- U8 buffer[BUFFER_READ_SIZE];
- U8 decrypted_buffer[BUFFER_READ_SIZE];
- int decrypted_length;
- unsigned char MACAddress[MAC_ADDRESS_BYTES];
- LLUUID::getNodeID(MACAddress);
- LLXORCipher cipher(MACAddress, MAC_ADDRESS_BYTES);
-
- // read in the salt and key
- protected_data_stream.read((char *)salt, STORE_SALT_SIZE);
- offset = 0;
- if (protected_data_stream.gcount() < STORE_SALT_SIZE)
- {
- throw LLProtectedDataException("Config file too short.");
- }
-
- cipher.decrypt(salt, STORE_SALT_SIZE);
-
- // totally lame. As we're not using the OS level protected data, we need to
- // at least obfuscate the data. We do this by using a salt stored at the head of the file
- // to encrypt the data, therefore obfuscating it from someone using simple existing tools.
- // We do include the MAC address as part of the obfuscation, which would require an
- // attacker to get the MAC address as well as the protected store, which improves things
- // somewhat. It would be better to use the password, but as this store
- // will be used to store the SL password when the user decides to have SL remember it,
- // so we can't use that. OS-dependent store implementations will use the OS password/storage
- // mechanisms and are considered to be more secure.
- // We've a strong intent to move to OS dependent protected data stores.
-
-
- // read in the rest of the file.
- EVP_CIPHER_CTX ctx;
- EVP_CIPHER_CTX_init(&ctx);
- EVP_DecryptInit(&ctx, EVP_rc4(), salt, NULL);
- // allocate memory:
- std::string decrypted_data;
-
- while(protected_data_stream.good()) {
- // read data as a block:
- protected_data_stream.read((char *)buffer, BUFFER_READ_SIZE);
-
- EVP_DecryptUpdate(&ctx, decrypted_buffer, &decrypted_length,
- buffer, protected_data_stream.gcount());
- decrypted_data.append((const char *)decrypted_buffer, protected_data_stream.gcount());
- }
-
- // RC4 is a stream cipher, so we don't bother to EVP_DecryptFinal, as there is
- // no block padding.
- EVP_CIPHER_CTX_cleanup(&ctx);
- std::istringstream parse_stream(decrypted_data);
- if (parser->parse(parse_stream, mProtectedDataMap,
- LLSDSerialize::SIZE_UNLIMITED) == LLSDParser::PARSE_FAILURE)
- {
- throw LLProtectedDataException("Config file cannot be decrypted.");
- }
- }
-}
-
-void LLSecAPIBasicHandler::_writeProtectedData()
-{
- std::ostringstream formatted_data_ostream;
- U8 salt[STORE_SALT_SIZE];
- U8 buffer[BUFFER_READ_SIZE];
- U8 encrypted_buffer[BUFFER_READ_SIZE];
-
-
- if(mProtectedDataMap.isUndefined())
- {
- LLFile::remove(mProtectedDataFilename);
- return;
- }
- // create a string with the formatted data.
- LLSDSerialize::toXML(mProtectedDataMap, formatted_data_ostream);
- std::istringstream formatted_data_istream(formatted_data_ostream.str());
- // generate the seed
- RAND_bytes(salt, STORE_SALT_SIZE);
-
-
- // write to a temp file so we don't clobber the initial file if there is
- // an error.
- std::string tmp_filename = mProtectedDataFilename + ".tmp";
-
- llofstream protected_data_stream(tmp_filename.c_str(),
- llofstream::binary);
- try
- {
-
- EVP_CIPHER_CTX ctx;
- EVP_CIPHER_CTX_init(&ctx);
- EVP_EncryptInit(&ctx, EVP_rc4(), salt, NULL);
- unsigned char MACAddress[MAC_ADDRESS_BYTES];
- LLUUID::getNodeID(MACAddress);
- LLXORCipher cipher(MACAddress, MAC_ADDRESS_BYTES);
- cipher.encrypt(salt, STORE_SALT_SIZE);
- protected_data_stream.write((const char *)salt, STORE_SALT_SIZE);
-
- while (formatted_data_istream.good())
- {
- formatted_data_istream.read((char *)buffer, BUFFER_READ_SIZE);
- if(formatted_data_istream.gcount() == 0)
- {
- break;
- }
- int encrypted_length;
- EVP_EncryptUpdate(&ctx, encrypted_buffer, &encrypted_length,
- buffer, formatted_data_istream.gcount());
- protected_data_stream.write((const char *)encrypted_buffer, encrypted_length);
- }
-
- // no EVP_EncrypteFinal, as this is a stream cipher
- EVP_CIPHER_CTX_cleanup(&ctx);
-
- protected_data_stream.close();
- }
- catch (...)
- {
- // it's good practice to clean up any secure information on error
- // (even though this file isn't really secure. Perhaps in the future
- // it may be, however.
- LLFile::remove(tmp_filename);
- throw LLProtectedDataException("Error writing Protected Data Store");
- }
-
- // move the temporary file to the specified file location.
- if((((LLFile::isfile(mProtectedDataFilename) != 0) &&
- (LLFile::remove(mProtectedDataFilename) != 0))) ||
- (LLFile::rename(tmp_filename, mProtectedDataFilename)))
- {
- LLFile::remove(tmp_filename);
- throw LLProtectedDataException("Could not overwrite protected data store");
- }
-}
-
-// instantiate a certificate from a pem string
-LLPointer<LLCertificate> LLSecAPIBasicHandler::getCertificate(const std::string& pem_cert)
-{
- LLPointer<LLCertificate> result = new LLBasicCertificate(pem_cert);
- return result;
-}
-
-
-
-// instiate a certificate from an openssl X509 structure
-LLPointer<LLCertificate> LLSecAPIBasicHandler::getCertificate(X509* openssl_cert)
-{
- LLPointer<LLCertificate> result = new LLBasicCertificate(openssl_cert);
- return result;
-}
-
-// instantiate a chain from an X509_STORE_CTX
-LLPointer<LLCertificateChain> LLSecAPIBasicHandler::getCertificateChain(const X509_STORE_CTX* chain)
-{
- LLPointer<LLCertificateChain> result = new LLBasicCertificateChain(chain);
- return result;
-}
-
-// instantiate a cert store given it's id. if a persisted version
-// exists, it'll be loaded. If not, one will be created (but not
-// persisted)
-LLPointer<LLCertificateStore> LLSecAPIBasicHandler::getCertificateStore(const std::string& store_id)
-{
- return mStore;
-}
-
-// retrieve protected data
-LLSD LLSecAPIBasicHandler::getProtectedData(const std::string& data_type,
- const std::string& data_id)
-{
-
- if (mProtectedDataMap.has(data_type) &&
- mProtectedDataMap[data_type].isMap() &&
- mProtectedDataMap[data_type].has(data_id))
- {
- return mProtectedDataMap[data_type][data_id];
- }
-
- return LLSD();
-}
-
-void LLSecAPIBasicHandler::deleteProtectedData(const std::string& data_type,
- const std::string& data_id)
-{
- if (mProtectedDataMap.has(data_type) &&
- mProtectedDataMap[data_type].isMap() &&
- mProtectedDataMap[data_type].has(data_id))
- {
- mProtectedDataMap[data_type].erase(data_id);
- }
-}
-
-
-//
-// persist data in a protected store
-//
-void LLSecAPIBasicHandler::setProtectedData(const std::string& data_type,
- const std::string& data_id,
- const LLSD& data)
-{
- if (!mProtectedDataMap.has(data_type) || !mProtectedDataMap[data_type].isMap()) {
- mProtectedDataMap[data_type] = LLSD::emptyMap();
- }
-
- mProtectedDataMap[data_type][data_id] = data;
-}
-
-//
-// Create a credential object from an identifier and authenticator. credentials are
-// per grid.
-LLPointer<LLCredential> LLSecAPIBasicHandler::createCredential(const std::string& grid,
- const LLSD& identifier,
- const LLSD& authenticator)
-{
- LLPointer<LLSecAPIBasicCredential> result = new LLSecAPIBasicCredential(grid);
- result->setCredentialData(identifier, authenticator);
- return result;
-}
-
-// Load a credential from the credential store, given the grid
-LLPointer<LLCredential> LLSecAPIBasicHandler::loadCredential(const std::string& grid)
-{
- LLSD credential = getProtectedData("credential", grid);
- LLPointer<LLSecAPIBasicCredential> result = new LLSecAPIBasicCredential(grid);
- if(credential.isMap() &&
- credential.has("identifier"))
- {
-
- LLSD identifier = credential["identifier"];
- LLSD authenticator;
- if (credential.has("authenticator"))
- {
- authenticator = credential["authenticator"];
- }
- result->setCredentialData(identifier, authenticator);
- }
- else
- {
- // credential was not in protected storage, so pull the credential
- // from the legacy store.
- std::string first_name = gSavedSettings.getString("FirstName");
- std::string last_name = gSavedSettings.getString("LastName");
-
- if ((first_name != "") &&
- (last_name != ""))
- {
- LLSD identifier = LLSD::emptyMap();
- LLSD authenticator;
- identifier["type"] = "agent";
- identifier["first_name"] = first_name;
- identifier["last_name"] = last_name;
-
- std::string legacy_password = _legacyLoadPassword();
- if (legacy_password.length() > 0)
- {
- authenticator = LLSD::emptyMap();
- authenticator["type"] = "hash";
- authenticator["algorithm"] = "md5";
- authenticator["secret"] = legacy_password;
- }
- result->setCredentialData(identifier, authenticator);
- }
- }
- return result;
-}
-
-// Save the credential to the credential store. Save the authenticator also if requested.
-// That feature is used to implement the 'remember password' functionality.
-void LLSecAPIBasicHandler::saveCredential(LLPointer<LLCredential> cred, bool save_authenticator)
-{
- LLSD credential = LLSD::emptyMap();
- credential["identifier"] = cred->getIdentifier();
- if (save_authenticator)
- {
- credential["authenticator"] = cred->getAuthenticator();
- }
- LL_INFOS("SECAPI") << "Saving Credential " << cred->getGrid() << ":" << cred->userID() << " " << save_authenticator << LL_ENDL;
- setProtectedData("credential", cred->getGrid(), credential);
- //*TODO: If we're saving Agni credentials, should we write the
- // credentials to the legacy password.dat/etc?
- _writeProtectedData();
-}
-
-// Remove a credential from the credential store.
-void LLSecAPIBasicHandler::deleteCredential(LLPointer<LLCredential> cred)
-{
- LLSD undefVal;
- deleteProtectedData("credential", cred->getGrid());
- cred->setCredentialData(undefVal, undefVal);
- _writeProtectedData();
-}
-
-// load the legacy hash for agni, and decrypt it given the
-// mac address
-std::string LLSecAPIBasicHandler::_legacyLoadPassword()
-{
- const S32 HASHED_LENGTH = 32;
- std::vector<U8> buffer(HASHED_LENGTH);
- llifstream password_file(mLegacyPasswordPath, llifstream::binary);
-
- if(password_file.fail())
- {
- return std::string("");
- }
-
- password_file.read((char*)&buffer[0], buffer.size());
- if(password_file.gcount() != buffer.size())
- {
- return std::string("");
- }
-
- // Decipher with MAC address
- unsigned char MACAddress[MAC_ADDRESS_BYTES];
- LLUUID::getNodeID(MACAddress);
- LLXORCipher cipher(MACAddress, 6);
- cipher.decrypt(&buffer[0], buffer.size());
-
- return std::string((const char*)&buffer[0], buffer.size());
-}
-
-
-// return an identifier for the user
-std::string LLSecAPIBasicCredential::userID() const
-{
- if (!mIdentifier.isMap())
- {
- return mGrid + "(null)";
- }
- else if ((std::string)mIdentifier["type"] == "agent")
- {
- return (std::string)mIdentifier["first_name"] + "_" + (std::string)mIdentifier["last_name"];
- }
- else if ((std::string)mIdentifier["type"] == "account")
- {
- return (std::string)mIdentifier["account_name"];
- }
-
- return "unknown";
-
-}
-
-// return a printable user identifier
-std::string LLSecAPIBasicCredential::asString() const
-{
- if (!mIdentifier.isMap())
- {
- return mGrid + ":(null)";
- }
- else if ((std::string)mIdentifier["type"] == "agent")
- {
- return mGrid + ":" + (std::string)mIdentifier["first_name"] + " " + (std::string)mIdentifier["last_name"];
- }
- else if ((std::string)mIdentifier["type"] == "account")
- {
- return mGrid + ":" + (std::string)mIdentifier["account_name"];
- }
-
- return mGrid + ":(unknown type)";
-}
-
-
-bool valueCompareLLSD(const LLSD& lhs, const LLSD& rhs)
-{
- if (lhs.type() != rhs.type())
- {
- return FALSE;
- }
- if (lhs.isMap())
- {
- // iterate through the map, verifying the right hand side has all of the
- // values that the left hand side has.
- for (LLSD::map_const_iterator litt = lhs.beginMap();
- litt != lhs.endMap();
- litt++)
- {
- if (!rhs.has(litt->first))
- {
- return FALSE;
- }
- }
-
- // Now validate that the left hand side has everything the
- // right hand side has, and that the values are equal.
- for (LLSD::map_const_iterator ritt = rhs.beginMap();
- ritt != rhs.endMap();
- ritt++)
- {
- if (!lhs.has(ritt->first))
- {
- return FALSE;
- }
- if (!valueCompareLLSD(lhs[ritt->first], ritt->second))
- {
- return FALSE;
- }
- }
- return TRUE;
- }
- else if (lhs.isArray())
- {
- LLSD::array_const_iterator ritt = rhs.beginArray();
- // iterate through the array, comparing
- for (LLSD::array_const_iterator litt = lhs.beginArray();
- litt != lhs.endArray();
- litt++)
- {
- if (!valueCompareLLSD(*ritt, *litt))
- {
- return FALSE;
- }
- ritt++;
- }
-
- return (ritt == rhs.endArray());
- }
- else
- {
- // simple type, compare as string
- return (lhs.asString() == rhs.asString());
- }
-
-}