forked from Yubico/yubikey-personalization
/
ykpers-json.c
330 lines (295 loc) · 9.94 KB
/
ykpers-json.c
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/* -*- mode:C; c-file-style: "bsd" -*- */
/*
* Copyright (c) 2013 Yubico AB
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "ykpers_lcl.h"
#include "ykpers-json.h"
#include <yubikey.h>
#include <json/json.h>
#include <string.h>
int _ykp_json_export_cfg(const YKP_CONFIG *cfg, char *json, size_t len) {
json_object *jobj = json_object_new_object();
json_object *yprod_json = json_object_new_object();
json_object *options_json = json_object_new_object();
if(cfg) {
YK_CONFIG ycfg = cfg->ykcore_config;
int mode = MODE_OTP_YUBICO;
struct map_st *p;
json_object *target_config = NULL;
json_object *prot_obj = NULL;
int protection = ykp_get_acccode_type(cfg);
if((ycfg.tktFlags & TKTFLAG_OATH_HOTP) == TKTFLAG_OATH_HOTP){
if((ycfg.cfgFlags & CFGFLAG_CHAL_HMAC) == CFGFLAG_CHAL_HMAC) {
mode = MODE_CHAL_HMAC;
} else if((ycfg.cfgFlags & CFGFLAG_CHAL_YUBICO) == CFGFLAG_CHAL_YUBICO) {
mode = MODE_CHAL_YUBICO;
} else {
mode = MODE_OATH_HOTP;
}
}
else if((ycfg.cfgFlags & CFGFLAG_STATIC_TICKET) == CFGFLAG_STATIC_TICKET) {
mode = MODE_STATIC_TICKET;
}
for(p = _modes_map; p->flag; p++) {
if(p->flag == mode) {
json_object *jmode = json_object_new_string(p->json_text);
json_object_object_add(yprod_json, "mode", jmode);
break;
}
}
if(cfg->command == SLOT_CONFIG) {
target_config = json_object_new_int(1);
} else if(cfg->command == SLOT_CONFIG2) {
target_config = json_object_new_int(2);
}
if(target_config) {
json_object_object_add(yprod_json, "targetConfig", target_config);
}
if(protection == YKP_ACCCODE_NONE) {
prot_obj = json_object_new_string("none");
} else if(protection == YKP_ACCCODE_RANDOM) {
prot_obj = json_object_new_string("random");
} else if(protection == YKP_ACCCODE_SERIAL) {
prot_obj = json_object_new_string("id");
}
if(prot_obj) {
json_object_object_add(yprod_json, "protection", prot_obj);
}
json_object_object_add(jobj, "yubiProdConfig", yprod_json);
json_object_object_add(yprod_json, "options", options_json);
if(ycfg.fixedSize != 0 && mode != MODE_STATIC_TICKET) {
json_object *jPrefix;
char prefix[5] = {0};
json_object *scope;
if(mode == MODE_OTP_YUBICO &&
ycfg.fixed[0] == 0x00 && ycfg.fixed[1] == 0x00) {
scope = json_object_new_string("yubiCloud");
} else {
scope = json_object_new_string("privatePrefix");
}
json_object_object_add(yprod_json, "scope", scope);
yubikey_modhex_encode(prefix, (const char*)ycfg.fixed, 2);
if(mode == MODE_OATH_HOTP) {
int flag = ycfg.cfgFlags & CFGFLAG_OATH_FIXED_MODHEX;
json_object *fixed_modhex = json_object_new_boolean(
flag == CFGFLAG_OATH_FIXED_MODHEX ? 1 : 0);
json_object_object_add(options_json, "fixedModhex", fixed_modhex);
if(flag == 0) {
yubikey_hex_encode(prefix, (const char*)ycfg.fixed, 2);
} else if(flag == CFGFLAG_OATH_FIXED_MODHEX1) {
yubikey_hex_encode(prefix + 2, (const char*)ycfg.fixed + 1, 1);
}
}
jPrefix = json_object_new_string(prefix);
json_object_object_add(yprod_json, "prefix", jPrefix);
} else if(mode != MODE_STATIC_TICKET) {
json_object *scope = json_object_new_string("noPublicId");
json_object_object_add(yprod_json, "scope", scope);
}
if(mode == MODE_OATH_HOTP) {
json_object *oathDigits;
json_object *randomSeed;
if((ycfg.cfgFlags & CFGFLAG_OATH_HOTP8) == CFGFLAG_OATH_HOTP8) {
oathDigits = json_object_new_int(8);
} else {
oathDigits = json_object_new_int(6);
}
json_object_object_add(options_json, "oathDigits", oathDigits);
if((ycfg.uid[5] == 0x01 || ycfg.uid[5] == 0x00) && ycfg.uid[4] == 0x00) {
json_object *fixedSeedvalue = json_object_new_int(ycfg.uid[5] << 4);
json_object_object_add(options_json, "fixedSeedvalue", fixedSeedvalue);
randomSeed = json_object_new_boolean(0);
} else {
randomSeed = json_object_new_boolean(1);
}
json_object_object_add(options_json, "randomSeed", randomSeed);
}
for(p = _ticket_flags_map; p->flag; p++) {
if(!p->json_text) {
continue;
}
if(p->mode && (mode & p->mode) == mode) {
int set = (ycfg.tktFlags & p->flag) == p->flag;
json_object *jsetting = json_object_new_boolean(set);
json_object_object_add(options_json, p->json_text, jsetting);
}
}
for(p = _config_flags_map; p->flag; p++) {
if(!p->json_text) {
continue;
}
if(p->mode && (mode & p->mode) == mode) {
int set = (ycfg.cfgFlags & p->flag) == p->flag;
json_object *jsetting = json_object_new_boolean(set);
json_object_object_add(options_json, p->json_text, jsetting);
}
}
for(p = _extended_flags_map; p->flag; p++) {
if(!p->json_text) {
continue;
}
if(p->mode && (mode & p->mode) == mode) {
int set = (ycfg.extFlags & p->flag) == p->flag;
json_object *jsetting = json_object_new_boolean(set);
json_object_object_add(options_json, p->json_text, jsetting);
}
}
}
#ifdef HAVE_JSON_OBJECT_TO_JSON_STRING_EXT
strncpy(json, json_object_to_json_string_ext(jobj, JSON_C_TO_STRING_PRETTY), len);
#else
strncpy(json, json_object_to_json_string(jobj), len);
#endif
/* free the root object, will free all children */
json_object_put(jobj);
return strlen(json);
}
int _ykp_json_import_cfg(YKP_CONFIG *cfg, const char *json, size_t len) {
int ret_code = 0;
if(cfg) {
json_object *jobj = json_tokener_parse(json);
json_object *yprod_json = json_object_object_get(jobj, "yubiProdConfig");
json_object *jmode = json_object_object_get(yprod_json, "mode");
json_object *options = json_object_object_get(yprod_json, "options");
json_object *jtarget;
const char *raw_mode;
int mode = MODE_OTP_YUBICO;
struct map_st *p;
if(!jobj || !yprod_json || !jmode || !options) {
ykp_errno = YKP_EINVAL;
goto out;
}
jtarget = json_object_object_get(yprod_json, "targetConfig");
if(jtarget) {
int target_config = json_object_get_int(jtarget);
int command;
if(target_config == 1) {
command = SLOT_CONFIG;
} else if(target_config == 2) {
command = SLOT_CONFIG2;
} else {
ykp_errno = YKP_EINVAL;
goto out;
}
if(ykp_command(cfg) == 0) {
ykp_configure_command(cfg, command);
} else if(ykp_command(cfg) != command) {
ykp_errno = YKP_EINVAL;
goto out;
}
}
raw_mode = json_object_get_string(jmode);
for(p = _modes_map; p->flag; p++) {
if(strcmp(raw_mode, p->json_text) == 0) {
mode = p->flag;
break;
}
}
if(mode == MODE_OATH_HOTP) {
json_object *jdigits = json_object_object_get(options, "oathDigits");
json_object *jrandom = json_object_object_get(options, "randomSeed");
ykp_set_tktflag_OATH_HOTP(cfg, true);
if(jdigits) {
int digits = json_object_get_int(jdigits);
if(digits == 8) {
ykp_set_cfgflag_OATH_HOTP8(cfg, true);
}
}
if(jrandom) {
int random = json_object_get_boolean(jrandom);
int seed = 0;
if(random == 1) {
/* XXX: add random seed.. */
} else {
json_object *jseed = json_object_object_get(options, "fixedSeedvalue");
if(jseed) {
seed = json_object_get_int(jseed);
}
}
ykp_set_oath_imf(cfg, (long unsigned int)seed);
}
} else if(mode == MODE_CHAL_HMAC) {
ykp_set_tktflag_CHAL_RESP(cfg, true);
ykp_set_cfgflag_CHAL_HMAC(cfg, true);
} else if(mode == MODE_CHAL_YUBICO) {
ykp_set_tktflag_CHAL_RESP(cfg, true);
ykp_set_cfgflag_CHAL_YUBICO(cfg, true);
} else if(mode == MODE_STATIC_TICKET) {
ykp_set_cfgflag_STATIC_TICKET(cfg, true);
}
for(p = _ticket_flags_map; p->flag; p++) {
if(!p->json_text) {
continue;
}
if(p->mode && (mode & p->mode) == mode) {
json_object *joption = json_object_object_get(options, p->json_text);
if(joption && json_object_get_type(joption) == json_type_boolean) {
int value = json_object_get_boolean(joption);
if(value == 1) {
p->setter(cfg, true);
}
}
}
}
for(p = _config_flags_map; p->flag; p++) {
if(!p->json_text) {
continue;
}
if(p->mode && (mode & p->mode) == mode) {
json_object *joption = json_object_object_get(options, p->json_text);
if(joption && json_object_get_type(joption) == json_type_boolean) {
int value = json_object_get_boolean(joption);
if(value == 1) {
p->setter(cfg, true);
}
}
}
}
for(p = _extended_flags_map; p->flag; p++) {
if(!p->json_text) {
continue;
}
if(p->mode && (mode & p->mode) == mode) {
json_object *joption = json_object_object_get(options, p->json_text);
if(joption && json_object_get_type(joption) == json_type_boolean) {
int value = json_object_get_boolean(joption);
if(value == 1) {
p->setter(cfg, true);
}
}
}
}
ret_code = 1;
out:
if(jobj) {
json_object_put(jobj);
}
}
ykp_errno = YKP_EINVAL;
return ret_code;
}