Annotation of embedaddon/strongswan/src/libcharon/plugins/eap_simaka_sql/eap_simaka_sql_card.c, revision 1.1
1.1 ! misho 1: /*
! 2: * Copyright (C) 2010 Martin Willi
! 3: * Copyright (C) 2010 revosec AG
! 4: *
! 5: * Copyright (C) 2017 Andreas Steffen
! 6: * HSR Hochschule fuer Technik Rapperswil
! 7: *
! 8: * This program is free software; you can redistribute it and/or modify it
! 9: * under the terms of the GNU General Public License as published by the
! 10: * Free Software Foundation; either version 2 of the License, or (at your
! 11: * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
! 12: *
! 13: * This program is distributed in the hope that it will be useful, but
! 14: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
! 15: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
! 16: * for more details.
! 17: */
! 18:
! 19: #include "eap_simaka_sql_card.h"
! 20:
! 21: #include <time.h>
! 22:
! 23: #include <daemon.h>
! 24:
! 25: typedef struct private_eap_simaka_sql_card_t private_eap_simaka_sql_card_t;
! 26:
! 27: /**
! 28: * Private data of an eap_simaka_sql_card_t object.
! 29: */
! 30: struct private_eap_simaka_sql_card_t {
! 31:
! 32: /**
! 33: * Public eap_simaka_sql_card_t interface.
! 34: */
! 35: eap_simaka_sql_card_t public;
! 36:
! 37: /**
! 38: * Triplet/quintuplet database
! 39: */
! 40: database_t *db;
! 41:
! 42: /**
! 43: * Remove used triplets/quintuplets from database
! 44: */
! 45: bool remove_used;
! 46: };
! 47:
! 48: METHOD(simaka_card_t, get_triplet, bool,
! 49: private_eap_simaka_sql_card_t *this, identification_t *id,
! 50: char rand[SIM_RAND_LEN], char sres[SIM_SRES_LEN], char kc[SIM_KC_LEN])
! 51: {
! 52: chunk_t sres_chunk, kc_chunk;
! 53: enumerator_t *query;
! 54: bool found = FALSE;
! 55: char buf[128];
! 56:
! 57: snprintf(buf, sizeof(buf), "%Y", id);
! 58: query = this->db->query(this->db,
! 59: "select sres, kc from triplets where rand = ? and id = ? "
! 60: "order by used limit 1",
! 61: DB_BLOB, chunk_create(rand, SIM_RAND_LEN), DB_TEXT, buf,
! 62: DB_BLOB, DB_BLOB);
! 63: if (query)
! 64: {
! 65: if (query->enumerate(query, &sres_chunk, &kc_chunk))
! 66: {
! 67: if (sres_chunk.len == SIM_SRES_LEN &&
! 68: kc_chunk.len == SIM_KC_LEN)
! 69: {
! 70: memcpy(sres, sres_chunk.ptr, SIM_SRES_LEN);
! 71: memcpy(kc, kc_chunk.ptr, SIM_KC_LEN);
! 72: found = TRUE;
! 73: }
! 74: }
! 75: query->destroy(query);
! 76: }
! 77: if (found)
! 78: {
! 79: if (this->remove_used)
! 80: {
! 81: this->db->execute(this->db, NULL,
! 82: "delete from triplets where id = ? and rand = ?",
! 83: DB_TEXT, buf, DB_BLOB, chunk_create(rand, SIM_RAND_LEN));
! 84: }
! 85: else
! 86: {
! 87: this->db->execute(this->db, NULL,
! 88: "update triplets set used = ? where id = ? and rand = ?",
! 89: DB_UINT, time(NULL), DB_TEXT, buf,
! 90: DB_BLOB, chunk_create(rand, SIM_RAND_LEN));
! 91: }
! 92: }
! 93: return found;
! 94: }
! 95:
! 96: METHOD(simaka_card_t, get_quintuplet, status_t,
! 97: private_eap_simaka_sql_card_t *this, identification_t *id,
! 98: char rand[AKA_RAND_LEN], char autn[AKA_AUTN_LEN], char ck[AKA_CK_LEN],
! 99: char ik[AKA_IK_LEN], char res[AKA_RES_MAX], int *res_len)
! 100: {
! 101: chunk_t ck_chunk, ik_chunk, res_chunk;
! 102: enumerator_t *query;
! 103: status_t found = FAILED;
! 104: char buf[128];
! 105:
! 106: snprintf(buf, sizeof(buf), "%Y", id);
! 107: query = this->db->query(this->db, "select ck, ik, res from quintuplets "
! 108: "where rand = ? and autn = ? and id = ? order by used limit 1",
! 109: DB_BLOB, chunk_create(rand, AKA_RAND_LEN),
! 110: DB_BLOB, chunk_create(autn, AKA_AUTN_LEN), DB_TEXT, buf,
! 111: DB_BLOB, DB_BLOB, DB_BLOB);
! 112: if (query)
! 113: {
! 114: if (query->enumerate(query, &ck_chunk, &ik_chunk, &res_chunk))
! 115: {
! 116: if (ck_chunk.len == AKA_CK_LEN &&
! 117: ik_chunk.len == AKA_IK_LEN &&
! 118: res_chunk.len <= AKA_RES_MAX)
! 119: {
! 120: memcpy(ck, ck_chunk.ptr, AKA_CK_LEN);
! 121: memcpy(ik, ik_chunk.ptr, AKA_IK_LEN);
! 122: memcpy(res, res_chunk.ptr, res_chunk.len);
! 123: *res_len = res_chunk.len;
! 124: found = SUCCESS;
! 125: }
! 126: }
! 127: query->destroy(query);
! 128: }
! 129: if (found == SUCCESS)
! 130: {
! 131: if (this->remove_used)
! 132: {
! 133: this->db->execute(this->db, NULL,
! 134: "delete from quintuplets where id = ? and rand = ?",
! 135: DB_TEXT, buf, DB_BLOB, chunk_create(rand, SIM_RAND_LEN));
! 136: }
! 137: else
! 138: {
! 139: this->db->execute(this->db, NULL,
! 140: "update quintuplets set used = ? where id = ? and rand = ?",
! 141: DB_UINT, time(NULL), DB_TEXT, buf,
! 142: DB_BLOB, chunk_create(rand, AKA_RAND_LEN));
! 143: }
! 144: }
! 145: return found;
! 146: }
! 147:
! 148: METHOD(eap_simaka_sql_card_t, destroy, void,
! 149: private_eap_simaka_sql_card_t *this)
! 150: {
! 151: free(this);
! 152: }
! 153:
! 154: /**
! 155: * See header
! 156: */
! 157: eap_simaka_sql_card_t *eap_simaka_sql_card_create(database_t *db,
! 158: bool remove_used)
! 159: {
! 160: private_eap_simaka_sql_card_t *this;
! 161:
! 162: INIT(this,
! 163: .public = {
! 164: .card = {
! 165: .get_triplet = _get_triplet,
! 166: .get_quintuplet = _get_quintuplet,
! 167: .resync = (void*)return_false,
! 168: .get_pseudonym = (void*)return_null,
! 169: .set_pseudonym = (void*)nop,
! 170: .get_reauth = (void*)return_null,
! 171: .set_reauth = (void*)nop,
! 172: },
! 173: .destroy = _destroy,
! 174: },
! 175: .db = db,
! 176: .remove_used = remove_used,
! 177: );
! 178:
! 179: return &this->public;
! 180: }
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