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Diffstat (limited to 'indra/newview/llsechandler_basic.cpp')
| -rw-r--r-- | indra/newview/llsechandler_basic.cpp | 1660 |
1 files changed, 0 insertions, 1660 deletions
diff --git a/indra/newview/llsechandler_basic.cpp b/indra/newview/llsechandler_basic.cpp deleted file mode 100644 index 90e8ff0aae..0000000000 --- a/indra/newview/llsechandler_basic.cpp +++ /dev/null @@ -1,1660 +0,0 @@ -/** - * @file llsechandler_basic.cpp - * @brief Security API for services such as certificate handling - * secure local storage, etc. - * - * $LicenseInfo:firstyear=2003&license=viewerlgpl$ - * Second Life Viewer Source Code - * Copyright (C) 2010, Linden Research, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; - * version 2.1 of the License only. - * - * This library 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA - * $/LicenseInfo$ - */ - - -#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> -#include "llmachineid.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); - } -} - - -LLBasicCertificate::LLBasicCertificate(X509* pCert) -{ - if (!pCert || !pCert->cert_info) - { - throw LLInvalidCertificate(this); - } - mCert = X509_dup(pCert); -} - -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; -} - - -void LLBasicCertificate::getLLSD(LLSD &llsd) -{ - if (mLLSDInfo.isUndefined()) - { - _initLLSD(); - } - llsd = 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(×truct)); -#else // LL_WINDOWS - return LLDate((F64)timegm(×truct)); -#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(cert_info); - 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(cert_info); - 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()); - llassert(basic_iter); - if (basic_iter) - { - 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 - if (!LLFile::isfile(filename)) - { - return; - } - - 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(cert_data); - // 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; - - // find the last '.' in the hostname and the match name. - int subdomain_pos = new_hostname.find_last_of('.'); - int subcn_pos = new_cn.find_last_of('.'); - - // if the last char is a '.', strip it - if(subdomain_pos == (new_hostname.length()-1)) - { - new_hostname = new_hostname.substr(0, subdomain_pos); - subdomain_pos = new_hostname.find_last_of('.'); - } - if(subcn_pos == (new_cn.length()-1)) - { - new_cn = new_cn.substr(0, subcn_pos); - subcn_pos = new_cn.find_last_of('.'); - } - - // Check to see if there are any further '.' in the string. - while((subcn_pos != std::string::npos) && (subdomain_pos != std::string::npos)) - { - // snip out last subdomain in both the match string and the hostname - // The last bit for 'my.current.host.com' would be 'com' - std::string cn_part = new_cn.substr(subcn_pos+1, std::string::npos); - std::string hostname_part = new_hostname.substr(subdomain_pos+1, std::string::npos); - - if(!_cert_subdomain_wildcard_match(new_hostname.substr(subdomain_pos+1, std::string::npos), - cn_part)) - { - return FALSE; - } - new_hostname = new_hostname.substr(0, subdomain_pos); - new_cn = new_cn.substr(0, subcn_pos); - subdomain_pos = new_hostname.find_last_of('.'); - subcn_pos = new_cn.find_last_of('.'); - } - // check to see if the most significant portion of the common name is '*'. If so, we can - // simply return success as child domains are also matched. - if(new_cn == "*") - { - // if it's just a '*' we support all child domains as well, so '*. - return TRUE; - } - - 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, - LLPointer<LLCertificate> cert, - const LLSD& validation_params, - int depth) -{ - - LLSD current_cert_info; - cert->getLLSD(current_cert_info); - // 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, cert2; - parent->getLLSD(cert1); - child->getLLSD(cert2); - 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 LLBasicCertificateStore::validate(int validation_policy, - LLPointer<LLCertificateChain> cert_chain, - const LLSD& validation_params) -{ - - if(cert_chain->size() < 1) - { - throw LLCertException(NULL, "No certs in chain"); - } - iterator current_cert = cert_chain->begin(); - LLSD current_cert_info; - LLSD validation_date; - if (validation_params.has(CERT_VALIDATION_DATE)) - { - validation_date = validation_params[CERT_VALIDATION_DATE]; - } - - if (validation_policy & VALIDATION_POLICY_HOSTNAME) - { - (*current_cert)->getLLSD(current_cert_info); - 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_DEBUGS("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)); - } - } - - // check the cache of already validated certs - X509* cert_x509 = (*current_cert)->getOpenSSLX509(); - if(!cert_x509) - { - throw LLInvalidCertificate((*current_cert)); - } - std::string sha1_hash((const char *)cert_x509->sha1_hash, SHA_DIGEST_LENGTH); - t_cert_cache::iterator cache_entry = mTrustedCertCache.find(sha1_hash); - if(cache_entry != mTrustedCertCache.end()) - { - LL_DEBUGS("SECAPI") << "Found cert in cache" << LL_ENDL; - // this cert is in the cache, so validate the time. - 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 < cache_entry->second.first) || - (validation_date > cache_entry->second.second)) - { - throw LLCertValidationExpirationException((*current_cert), validation_date); - } - } - // successfully found in cache - return; - } - if(current_cert_info.isUndefined()) - { - (*current_cert)->getLLSD(current_cert_info); - } - LLDate from_time = current_cert_info[CERT_VALID_FROM].asDate(); - LLDate to_time = current_cert_info[CERT_VALID_TO].asDate(); - int depth = 0; - LLPointer<LLCertificate> previous_cert; - // loop through the cert chain, validating the current cert against the next one. - while(current_cert != cert_chain->end()) - { - - int local_validation_policy = validation_policy; - if(current_cert == cert_chain->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_search_params = LLSD::emptyMap(); - // is the cert itself in the store? - cert_search_params[CERT_SHA1_DIGEST] = current_cert_info[CERT_SHA1_DIGEST]; - LLCertificateStore::iterator found_store_cert = find(cert_search_params); - if(found_store_cert != end()) - { - mTrustedCertCache[sha1_hash] = std::pair<LLDate, LLDate>(from_time, to_time); - return; - } - - // is the parent in the cert store? - - cert_search_params = LLSD::emptyMap(); - cert_search_params[CERT_SUBJECT_NAME_STRING] = current_cert_info[CERT_ISSUER_NAME_STRING]; - if (current_cert_info.has(CERT_AUTHORITY_KEY_IDENTIFIER)) - { - LLSD cert_aki = current_cert_info[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 = find(cert_search_params); - - if(found_store_cert != end()) - { - // 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. - mTrustedCertCache[sha1_hash] = std::pair<LLDate, LLDate>(from_time, to_time); - return; - } - previous_cert = (*current_cert); - current_cert++; - depth++; - if(current_cert != cert_chain->end()) - { - (*current_cert)->getLLSD(current_cert_info); - } - } - if (validation_policy & VALIDATION_POLICY_TRUSTED) - { - // we reached the end without finding a trusted cert. - throw LLCertValidationTrustException((*cert_chain)[cert_chain->size()-1]); - - } - mTrustedCertCache[sha1_hash] = std::pair<LLDate, LLDate>(from_time, to_time); -} - - -// 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"); - - - LL_DEBUGS("SECAPI") << "Loading certificate store from " << store_file << LL_ENDL; - mStore = new LLBasicCertificateStore(store_file); - - // grab the application CA.pem file that contains the well-known certs shipped - // with the product - std::string ca_file_path = gDirUtilp->getExpandedFilename(LL_PATH_APP_SETTINGS, "CA.pem"); - llinfos << "app path " << ca_file_path << llendl; - LLBasicCertificateStore app_ca_store = LLBasicCertificateStore(ca_file_path); - - // push the applicate CA files into the store, therefore adding any new CA certs that - // updated - for(LLCertificateVector::iterator i = app_ca_store.begin(); - i != app_ca_store.end(); - i++) - { - mStore->add(*i); - } - - } - _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 unique_id[MAC_ADDRESS_BYTES]; - LLMachineID::getUniqueID(unique_id, sizeof(unique_id)); - LLXORCipher cipher(unique_id, sizeof(unique_id)); - - // 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 unique_id[MAC_ADDRESS_BYTES]; - LLMachineID::getUniqueID(unique_id, sizeof(unique_id)); - LLXORCipher cipher(unique_id, sizeof(unique_id)); - 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_DEBUGS("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 unique_id[MAC_ADDRESS_BYTES]; - LLMachineID::getUniqueID(unique_id, sizeof(unique_id)); - LLXORCipher cipher(unique_id, sizeof(unique_id)); - 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()); - } - -} |