authorization_set.cpp revision 941d1c4ad4422a796d90010191c11aef0580295e
15ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden/* 25ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden * Copyright (C) 2014 The Android Open Source Project 35ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden * 45ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden * Licensed under the Apache License, Version 2.0 (the "License"); 55ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden * you may not use this file except in compliance with the License. 65ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden * You may obtain a copy of the License at 75ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden * 85ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden * http://www.apache.org/licenses/LICENSE-2.0 95ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden * 105ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden * Unless required by applicable law or agreed to in writing, software 115ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden * distributed under the License is distributed on an "AS IS" BASIS, 125ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 135ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden * See the License for the specific language governing permissions and 145ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden * limitations under the License. 155ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden */ 165ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 175ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden#include <stdlib.h> 185ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden#include <string.h> 195ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden#include <stddef.h> 205ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 215ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden#include <assert.h> 225ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 2398d9b92547a9a7553b99e3e941a4175926f95b62Shawn Willden#include <keymaster/authorization_set.h> 2498d9b92547a9a7553b99e3e941a4175926f95b62Shawn Willden#include <keymaster/google_keymaster_utils.h> 255ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 265ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdennamespace keymaster { 275ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 285ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenstatic inline bool is_blob_tag(keymaster_tag_t tag) { 295ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return (keymaster_tag_get_type(tag) == KM_BYTES || keymaster_tag_get_type(tag) == KM_BIGNUM); 305ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 315ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 325ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenconst size_t STARTING_ELEMS_CAPACITY = 8; 335ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 3458e1a5486219a1be9264d4e863a9dd3e393906c3Shawn WilldenAuthorizationSet::AuthorizationSet(const AuthorizationSet& set) 3562de26672193373972f2ce968b51cf8335f118f9Shawn Willden : Serializable(), elems_(NULL), indirect_data_(NULL) { 367636471bd1c553ac179f0dddc17133491d0e1fafShawn Willden Reinitialize(set.elems_, set.elems_size_); 375ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 385ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 398d336ae10df66da4c0433f17c2d42e85baea32c5Shawn WilldenAuthorizationSet::~AuthorizationSet() { 408d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden FreeData(); 418d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden} 4258e1a5486219a1be9264d4e863a9dd3e393906c3Shawn Willden 43370121346777e13437c275fbe7a975d899cc325cShawn Willdenbool AuthorizationSet::reserve_elems(size_t count) { 44437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden if (is_valid() != OK) 45437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden return false; 46437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden 47370121346777e13437c275fbe7a975d899cc325cShawn Willden if (count >= elems_capacity_) { 48370121346777e13437c275fbe7a975d899cc325cShawn Willden keymaster_key_param_t* new_elems = new keymaster_key_param_t[count]; 49370121346777e13437c275fbe7a975d899cc325cShawn Willden if (new_elems == NULL) { 50370121346777e13437c275fbe7a975d899cc325cShawn Willden set_invalid(ALLOCATION_FAILURE); 51370121346777e13437c275fbe7a975d899cc325cShawn Willden return false; 52370121346777e13437c275fbe7a975d899cc325cShawn Willden } 53370121346777e13437c275fbe7a975d899cc325cShawn Willden memcpy(new_elems, elems_, sizeof(*elems_) * elems_size_); 54370121346777e13437c275fbe7a975d899cc325cShawn Willden delete[] elems_; 55370121346777e13437c275fbe7a975d899cc325cShawn Willden elems_ = new_elems; 56370121346777e13437c275fbe7a975d899cc325cShawn Willden elems_capacity_ = count; 57370121346777e13437c275fbe7a975d899cc325cShawn Willden } 58370121346777e13437c275fbe7a975d899cc325cShawn Willden return true; 59370121346777e13437c275fbe7a975d899cc325cShawn Willden} 60370121346777e13437c275fbe7a975d899cc325cShawn Willden 61370121346777e13437c275fbe7a975d899cc325cShawn Willdenbool AuthorizationSet::reserve_indirect(size_t length) { 62437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden if (is_valid() != OK) 63437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden return false; 64437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden 65370121346777e13437c275fbe7a975d899cc325cShawn Willden if (length > indirect_data_capacity_) { 66370121346777e13437c275fbe7a975d899cc325cShawn Willden uint8_t* new_data = new uint8_t[length]; 67370121346777e13437c275fbe7a975d899cc325cShawn Willden if (new_data == NULL) { 68370121346777e13437c275fbe7a975d899cc325cShawn Willden set_invalid(ALLOCATION_FAILURE); 69370121346777e13437c275fbe7a975d899cc325cShawn Willden return false; 70370121346777e13437c275fbe7a975d899cc325cShawn Willden } 71370121346777e13437c275fbe7a975d899cc325cShawn Willden memcpy(new_data, indirect_data_, indirect_data_size_); 72370121346777e13437c275fbe7a975d899cc325cShawn Willden 73370121346777e13437c275fbe7a975d899cc325cShawn Willden // Fix up the data pointers to point into the new region. 74370121346777e13437c275fbe7a975d899cc325cShawn Willden for (size_t i = 0; i < elems_size_; ++i) { 75370121346777e13437c275fbe7a975d899cc325cShawn Willden if (is_blob_tag(elems_[i].tag)) 76370121346777e13437c275fbe7a975d899cc325cShawn Willden elems_[i].blob.data = new_data + (elems_[i].blob.data - indirect_data_); 77370121346777e13437c275fbe7a975d899cc325cShawn Willden } 78370121346777e13437c275fbe7a975d899cc325cShawn Willden delete[] indirect_data_; 79370121346777e13437c275fbe7a975d899cc325cShawn Willden indirect_data_ = new_data; 80370121346777e13437c275fbe7a975d899cc325cShawn Willden indirect_data_capacity_ = length; 81370121346777e13437c275fbe7a975d899cc325cShawn Willden } 82370121346777e13437c275fbe7a975d899cc325cShawn Willden return true; 83370121346777e13437c275fbe7a975d899cc325cShawn Willden} 84370121346777e13437c275fbe7a975d899cc325cShawn Willden 855ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenbool AuthorizationSet::Reinitialize(const keymaster_key_param_t* elems, const size_t count) { 865ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden FreeData(); 875ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 88370121346777e13437c275fbe7a975d899cc325cShawn Willden if (!reserve_elems(count)) 89370121346777e13437c275fbe7a975d899cc325cShawn Willden return false; 905ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 91370121346777e13437c275fbe7a975d899cc325cShawn Willden if (!reserve_indirect(ComputeIndirectDataSize(elems, count))) 925ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return false; 935ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 94370121346777e13437c275fbe7a975d899cc325cShawn Willden memcpy(elems_, elems, sizeof(keymaster_key_param_t) * count); 95370121346777e13437c275fbe7a975d899cc325cShawn Willden elems_size_ = count; 965ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden CopyIndirectData(); 97370121346777e13437c275fbe7a975d899cc325cShawn Willden error_ = OK; 985ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return true; 995ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 1005ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 1015ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenvoid AuthorizationSet::set_invalid(Error error) { 1025ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden FreeData(); 103370121346777e13437c275fbe7a975d899cc325cShawn Willden error_ = error; 1045ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 1055ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 1065ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenint AuthorizationSet::find(keymaster_tag_t tag, int begin) const { 107437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden if (is_valid() != OK) 108437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden return -1; 109437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden 1105ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden int i = ++begin; 1118d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden while (i < (int)elems_size_ && elems_[i].tag != tag) 1128d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden ++i; 1135ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden if (i == (int)elems_size_) 1145ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return -1; 1155ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden else 1165ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return i; 1175ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 1185ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 1195ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenkeymaster_key_param_t empty; 1205ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenkeymaster_key_param_t AuthorizationSet::operator[](int at) const { 121437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden if (is_valid() == OK && at < (int)elems_size_) { 1228d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return elems_[at]; 1235ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 1245ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden memset(&empty, 0, sizeof(empty)); 1255ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return empty; 1265ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 1275ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 128370121346777e13437c275fbe7a975d899cc325cShawn Willdenbool AuthorizationSet::push_back(const AuthorizationSet& set) { 129437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden if (is_valid() != OK) 130437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden return false; 131437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden 132370121346777e13437c275fbe7a975d899cc325cShawn Willden if (!reserve_elems(elems_size_ + set.elems_size_)) 133370121346777e13437c275fbe7a975d899cc325cShawn Willden return false; 134370121346777e13437c275fbe7a975d899cc325cShawn Willden 135370121346777e13437c275fbe7a975d899cc325cShawn Willden if (!reserve_indirect(indirect_data_size_ + set.indirect_data_size_)) 136370121346777e13437c275fbe7a975d899cc325cShawn Willden return false; 137370121346777e13437c275fbe7a975d899cc325cShawn Willden 138370121346777e13437c275fbe7a975d899cc325cShawn Willden for (size_t i = 0; i < set.size(); ++i) 139370121346777e13437c275fbe7a975d899cc325cShawn Willden if (!push_back(set[i])) 140370121346777e13437c275fbe7a975d899cc325cShawn Willden return false; 141370121346777e13437c275fbe7a975d899cc325cShawn Willden 142370121346777e13437c275fbe7a975d899cc325cShawn Willden return true; 143370121346777e13437c275fbe7a975d899cc325cShawn Willden} 144370121346777e13437c275fbe7a975d899cc325cShawn Willden 1455ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenbool AuthorizationSet::push_back(keymaster_key_param_t elem) { 146437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden if (is_valid() != OK) 147437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden return false; 148437fbd195e7de57b7dc0c449c04458bd90ef50deShawn Willden 149370121346777e13437c275fbe7a975d899cc325cShawn Willden if (elems_size_ >= elems_capacity_) 150370121346777e13437c275fbe7a975d899cc325cShawn Willden if (!reserve_elems(elems_capacity_ ? elems_capacity_ * 2 : STARTING_ELEMS_CAPACITY)) 1515ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return false; 1525ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 1535ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden if (is_blob_tag(elem.tag)) { 154370121346777e13437c275fbe7a975d899cc325cShawn Willden if (indirect_data_capacity_ - indirect_data_size_ < elem.blob.data_length) 155370121346777e13437c275fbe7a975d899cc325cShawn Willden if (!reserve_indirect(2 * (indirect_data_capacity_ + elem.blob.data_length))) 1565ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return false; 15758e1a5486219a1be9264d4e863a9dd3e393906c3Shawn Willden 1585ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden memcpy(indirect_data_ + indirect_data_size_, elem.blob.data, elem.blob.data_length); 1598d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden elem.blob.data = indirect_data_ + indirect_data_size_; 1605ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden indirect_data_size_ += elem.blob.data_length; 1615ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 1625ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 1635ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden elems_[elems_size_++] = elem; 1645ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return true; 1655ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 1665ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 1678d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willdenstatic size_t serialized_size(const keymaster_key_param_t& param) { 1688d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden switch (keymaster_tag_get_type(param.tag)) { 1698d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_INVALID: 1708d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden default: 1718d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return sizeof(uint32_t); 1728d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_ENUM: 1738d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_ENUM_REP: 1748d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_INT: 1758d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_INT_REP: 1768d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return sizeof(uint32_t) * 2; 1778d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_LONG: 1788d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_DATE: 1798d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return sizeof(uint32_t) + sizeof(uint64_t); 1808d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_BOOL: 1818d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return sizeof(uint32_t) + 1; 1828d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden break; 1838d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_BIGNUM: 1848d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_BYTES: 1858d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return sizeof(uint32_t) * 3; 1868d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden } 1878d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden} 1888d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden 1898d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willdenstatic uint8_t* serialize(const keymaster_key_param_t& param, uint8_t* buf, const uint8_t* end, 1908d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden const uint8_t* indirect_base) { 191172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden buf = append_uint32_to_buf(buf, end, param.tag); 1928d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden switch (keymaster_tag_get_type(param.tag)) { 1938d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_INVALID: 1948d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden break; 1958d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_ENUM: 1968d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_ENUM_REP: 197172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden buf = append_uint32_to_buf(buf, end, param.enumerated); 1988d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden break; 1998d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_INT: 2008d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_INT_REP: 201172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden buf = append_uint32_to_buf(buf, end, param.integer); 2028d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden break; 2038d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_LONG: 204172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden buf = append_uint64_to_buf(buf, end, param.long_integer); 2058d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden break; 2068d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_DATE: 207172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden buf = append_uint64_to_buf(buf, end, param.date_time); 2088d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden break; 2098d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_BOOL: 2108d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden if (buf < end) 2118d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden *buf = static_cast<uint8_t>(param.boolean); 2128d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden buf++; 2138d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden break; 2148d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_BIGNUM: 2158d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_BYTES: 216172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden buf = append_uint32_to_buf(buf, end, param.blob.data_length); 217172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden buf = append_uint32_to_buf(buf, end, param.blob.data - indirect_base); 2188d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden break; 2198d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden } 2208d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return buf; 2218d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden} 2228d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden 223172f8c9be706e27f43022063bbc7f4b0177583acShawn Willdenstatic bool deserialize(keymaster_key_param_t* param, const uint8_t** buf_ptr, const uint8_t* end, 2248d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden const uint8_t* indirect_base, const uint8_t* indirect_end) { 225172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden if (!copy_uint32_from_buf(buf_ptr, end, ¶m->tag)) 2268d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return false; 2278d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden 2288d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden switch (keymaster_tag_get_type(param->tag)) { 2298d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden default: 2308d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_INVALID: 2318d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return false; 2328d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_ENUM: 2338d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_ENUM_REP: 234172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden return copy_uint32_from_buf(buf_ptr, end, ¶m->enumerated); 2358d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_INT: 2368d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_INT_REP: 237172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden return copy_uint32_from_buf(buf_ptr, end, ¶m->integer); 2388d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_LONG: 239172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden return copy_uint64_from_buf(buf_ptr, end, ¶m->long_integer); 2408d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_DATE: 241172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden return copy_uint64_from_buf(buf_ptr, end, ¶m->date_time); 2428d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden break; 2438d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_BOOL: 244172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden if (*buf_ptr < end) { 245172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden param->boolean = static_cast<bool>(**buf_ptr); 246172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden (*buf_ptr)++; 2478d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return true; 2488d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden } 2498d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return false; 2508d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden 2518d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_BIGNUM: 2528d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden case KM_BYTES: { 2538d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden uint32_t offset; 254172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden if (!copy_uint32_from_buf(buf_ptr, end, ¶m->blob.data_length) || 255172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden !copy_uint32_from_buf(buf_ptr, end, &offset)) 2568d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return false; 2578d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden if (static_cast<ptrdiff_t>(offset) > indirect_end - indirect_base || 258172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden static_cast<ptrdiff_t>(offset + param->blob.data_length) > indirect_end - indirect_base) 2598d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return false; 2608d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden param->blob.data = indirect_base + offset; 2618d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return true; 2628d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden } 2638d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden } 2648d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden} 2658d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden 2668d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willdensize_t AuthorizationSet::SerializedSizeOfElements() const { 2678d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden size_t size = 0; 2688d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden for (size_t i = 0; i < elems_size_; ++i) { 2698d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden size += serialized_size(elems_[i]); 2708d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden } 2718d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return size; 2728d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden} 2738d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden 27458e1a5486219a1be9264d4e863a9dd3e393906c3Shawn Willdensize_t AuthorizationSet::SerializedSize() const { 2758d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return sizeof(uint32_t) + // Size of indirect_data_ 2768d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden indirect_data_size_ + // indirect_data_ 2778d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden sizeof(uint32_t) + // Number of elems_ 2788d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden sizeof(uint32_t) + // Size of elems_ 2798d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden SerializedSizeOfElements(); // elems_ 2805ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 2815ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 2828d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willdenuint8_t* AuthorizationSet::Serialize(uint8_t* buf, const uint8_t* end) const { 2838d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden buf = append_size_and_data_to_buf(buf, end, indirect_data_, indirect_data_size_); 284172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden buf = append_uint32_to_buf(buf, end, elems_size_); 285172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden buf = append_uint32_to_buf(buf, end, SerializedSizeOfElements()); 2868d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden for (size_t i = 0; i < elems_size_; ++i) { 2878d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden buf = serialize(elems_[i], buf, end, indirect_data_); 2888d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden } 2898d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return buf; 2905ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 2915ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 292370121346777e13437c275fbe7a975d899cc325cShawn Willdenbool AuthorizationSet::DeserializeIndirectData(const uint8_t** buf_ptr, const uint8_t* end) { 293f2282b3c6690ccfaa7878886f01693ef4f0b3bedShawn Willden UniquePtr<uint8_t[]> indirect_buf; 294f2282b3c6690ccfaa7878886f01693ef4f0b3bedShawn Willden if (!copy_size_and_data_from_buf(buf_ptr, end, &indirect_data_size_, &indirect_buf)) { 295370121346777e13437c275fbe7a975d899cc325cShawn Willden set_invalid(MALFORMED_DATA); 296370121346777e13437c275fbe7a975d899cc325cShawn Willden return false; 297370121346777e13437c275fbe7a975d899cc325cShawn Willden } 298f2282b3c6690ccfaa7878886f01693ef4f0b3bedShawn Willden indirect_data_ = indirect_buf.release(); 299370121346777e13437c275fbe7a975d899cc325cShawn Willden return true; 300370121346777e13437c275fbe7a975d899cc325cShawn Willden} 3015ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 302370121346777e13437c275fbe7a975d899cc325cShawn Willdenbool AuthorizationSet::DeserializeElementsData(const uint8_t** buf_ptr, const uint8_t* end) { 3038d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden uint32_t elements_count; 3048d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden uint32_t elements_size; 305370121346777e13437c275fbe7a975d899cc325cShawn Willden if (!copy_uint32_from_buf(buf_ptr, end, &elements_count) || 306172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden !copy_uint32_from_buf(buf_ptr, end, &elements_size)) { 30758e1a5486219a1be9264d4e863a9dd3e393906c3Shawn Willden set_invalid(MALFORMED_DATA); 3085ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return false; 3095ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 3105ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 311834e80747cbb960f8a4028c5c8604bf5218ecdb9Shawn Willden // Note that the following validation of elements_count is weak, but it prevents allocation of 312834e80747cbb960f8a4028c5c8604bf5218ecdb9Shawn Willden // elems_ arrays which are clearly too large to be reasonable. 31362de26672193373972f2ce968b51cf8335f118f9Shawn Willden if (static_cast<ptrdiff_t>(elements_size) > end - *buf_ptr || 31462de26672193373972f2ce968b51cf8335f118f9Shawn Willden elements_count * sizeof(uint32_t) > elements_size) { 315834e80747cbb960f8a4028c5c8604bf5218ecdb9Shawn Willden set_invalid(MALFORMED_DATA); 316834e80747cbb960f8a4028c5c8604bf5218ecdb9Shawn Willden return false; 317834e80747cbb960f8a4028c5c8604bf5218ecdb9Shawn Willden } 318834e80747cbb960f8a4028c5c8604bf5218ecdb9Shawn Willden 319370121346777e13437c275fbe7a975d899cc325cShawn Willden if (!reserve_elems(elements_count)) 3205ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return false; 3215ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 3228d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden uint8_t* indirect_end = indirect_data_ + indirect_data_size_; 323172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden const uint8_t* elements_end = *buf_ptr + elements_size; 3248d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden for (size_t i = 0; i < elements_count; ++i) { 325172f8c9be706e27f43022063bbc7f4b0177583acShawn Willden if (!deserialize(elems_ + i, buf_ptr, elements_end, indirect_data_, indirect_end)) { 3268d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden set_invalid(MALFORMED_DATA); 3278d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return false; 3288d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden } 32958e1a5486219a1be9264d4e863a9dd3e393906c3Shawn Willden } 330370121346777e13437c275fbe7a975d899cc325cShawn Willden elems_size_ = elements_count; 331370121346777e13437c275fbe7a975d899cc325cShawn Willden return true; 332370121346777e13437c275fbe7a975d899cc325cShawn Willden} 3335ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 334370121346777e13437c275fbe7a975d899cc325cShawn Willdenbool AuthorizationSet::Deserialize(const uint8_t** buf_ptr, const uint8_t* end) { 335370121346777e13437c275fbe7a975d899cc325cShawn Willden FreeData(); 336370121346777e13437c275fbe7a975d899cc325cShawn Willden 337370121346777e13437c275fbe7a975d899cc325cShawn Willden if (!DeserializeIndirectData(buf_ptr, end) || !DeserializeElementsData(buf_ptr, end)) 338370121346777e13437c275fbe7a975d899cc325cShawn Willden return false; 339370121346777e13437c275fbe7a975d899cc325cShawn Willden 340370121346777e13437c275fbe7a975d899cc325cShawn Willden if (indirect_data_size_ != ComputeIndirectDataSize(elems_, elems_size_)) { 3418d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden set_invalid(MALFORMED_DATA); 3425ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return false; 3435ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 3448d336ae10df66da4c0433f17c2d42e85baea32c5Shawn Willden return true; 3455ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 3465ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 347941d1c4ad4422a796d90010191c11aef0580295eShawn Willdenvoid AuthorizationSet::Clear() { 3481834d5f82a7ad5884c184fd22c702ac9d915af45Shawn Willden memset_s(elems_, 0, elems_size_ * sizeof(keymaster_key_param_t)); 3491834d5f82a7ad5884c184fd22c702ac9d915af45Shawn Willden memset_s(indirect_data_, 0, indirect_data_size_); 350941d1c4ad4422a796d90010191c11aef0580295eShawn Willden elems_size_ = 0; 351941d1c4ad4422a796d90010191c11aef0580295eShawn Willden indirect_data_size_ = 0; 352941d1c4ad4422a796d90010191c11aef0580295eShawn Willden} 353941d1c4ad4422a796d90010191c11aef0580295eShawn Willden 354941d1c4ad4422a796d90010191c11aef0580295eShawn Willdenvoid AuthorizationSet::FreeData() { 355941d1c4ad4422a796d90010191c11aef0580295eShawn Willden Clear(); 35658e1a5486219a1be9264d4e863a9dd3e393906c3Shawn Willden 35758e1a5486219a1be9264d4e863a9dd3e393906c3Shawn Willden delete[] elems_; 35858e1a5486219a1be9264d4e863a9dd3e393906c3Shawn Willden delete[] indirect_data_; 35958e1a5486219a1be9264d4e863a9dd3e393906c3Shawn Willden 3605ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden elems_ = NULL; 3615ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden indirect_data_ = NULL; 3625ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden elems_capacity_ = 0; 3635ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden indirect_data_capacity_ = 0; 364370121346777e13437c275fbe7a975d899cc325cShawn Willden error_ = OK; 3655ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 3665ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 3675ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden/* static */ 3685ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdensize_t AuthorizationSet::ComputeIndirectDataSize(const keymaster_key_param_t* elems, size_t count) { 3695ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden size_t size = 0; 3705ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden for (size_t i = 0; i < count; ++i) { 3715ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden if (is_blob_tag(elems[i].tag)) { 3725ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden size += elems[i].blob.data_length; 3735ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 3745ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 3755ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return size; 3765ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 3775ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 3785ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenvoid AuthorizationSet::CopyIndirectData() { 379370121346777e13437c275fbe7a975d899cc325cShawn Willden memset_s(indirect_data_, 0, indirect_data_capacity_); 3805ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 3815ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden uint8_t* indirect_data_pos = indirect_data_; 3825ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden for (size_t i = 0; i < elems_size_; ++i) { 383370121346777e13437c275fbe7a975d899cc325cShawn Willden assert(indirect_data_pos <= indirect_data_ + indirect_data_capacity_); 3845ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden if (is_blob_tag(elems_[i].tag)) { 3855ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden memcpy(indirect_data_pos, elems_[i].blob.data, elems_[i].blob.data_length); 3865ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden elems_[i].blob.data = indirect_data_pos; 3875ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden indirect_data_pos += elems_[i].blob.data_length; 3885ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 3895ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 390370121346777e13437c275fbe7a975d899cc325cShawn Willden assert(indirect_data_pos == indirect_data_ + indirect_data_capacity_); 391370121346777e13437c275fbe7a975d899cc325cShawn Willden indirect_data_size_ = indirect_data_pos - indirect_data_; 3925ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 3935ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 3945ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenbool AuthorizationSet::GetTagValueEnum(keymaster_tag_t tag, uint32_t* val) const { 3955ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden int pos = find(tag); 3965ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden if (pos == -1) { 3975ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return false; 3985ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 399ebf627f0b50c0979e6cf53668464297703371ebaShawn Willden *val = elems_[pos].enumerated; 4005ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return true; 4015ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 4025ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 4035ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenbool AuthorizationSet::GetTagValueEnumRep(keymaster_tag_t tag, size_t instance, 4045ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden uint32_t* val) const { 4055ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden size_t count = 0; 4065ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden int pos = -1; 4075ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden while (count <= instance) { 4085ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden pos = find(tag, pos); 4095ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden if (pos == -1) { 4105ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return false; 4115ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 4125ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden ++count; 4135ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 414ebf627f0b50c0979e6cf53668464297703371ebaShawn Willden *val = elems_[pos].enumerated; 4155ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return true; 4165ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 4175ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 4185ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenbool AuthorizationSet::GetTagValueInt(keymaster_tag_t tag, uint32_t* val) const { 4195ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden int pos = find(tag); 4205ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden if (pos == -1) { 4215ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return false; 4225ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 423ebf627f0b50c0979e6cf53668464297703371ebaShawn Willden *val = elems_[pos].integer; 4245ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return true; 4255ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 4265ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 4275ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenbool AuthorizationSet::GetTagValueIntRep(keymaster_tag_t tag, size_t instance, 4285ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden uint32_t* val) const { 4295ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden size_t count = 0; 4305ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden int pos = -1; 4315ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden while (count <= instance) { 4325ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden pos = find(tag, pos); 4335ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden if (pos == -1) { 4345ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return false; 4355ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 4365ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden ++count; 4375ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 438ebf627f0b50c0979e6cf53668464297703371ebaShawn Willden *val = elems_[pos].integer; 4395ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return true; 4405ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 4415ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 4425ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenbool AuthorizationSet::GetTagValueLong(keymaster_tag_t tag, uint64_t* val) const { 4435ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden int pos = find(tag); 4445ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden if (pos == -1) { 4455ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return false; 4465ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 447ebf627f0b50c0979e6cf53668464297703371ebaShawn Willden *val = elems_[pos].long_integer; 4485ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return true; 4495ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 4505ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 4515ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenbool AuthorizationSet::GetTagValueDate(keymaster_tag_t tag, uint64_t* val) const { 4525ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden int pos = find(tag); 4535ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden if (pos == -1) { 4545ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return false; 4555ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 456ebf627f0b50c0979e6cf53668464297703371ebaShawn Willden *val = elems_[pos].date_time; 4575ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return true; 4585ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 4595ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 4605ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willdenbool AuthorizationSet::GetTagValueBlob(keymaster_tag_t tag, keymaster_blob_t* val) const { 4615ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden int pos = find(tag); 4625ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden if (pos == -1) { 4635ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return false; 4645ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden } 465ebf627f0b50c0979e6cf53668464297703371ebaShawn Willden *val = elems_[pos].blob; 4665ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden return true; 4675ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} 4685ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden 4695ada7b6c525d2bfd5b556a698ccb11db23e052bbShawn Willden} // namespace keymaster 470