Licenses, and use full strength AES-128 in scramble.

This commit is contained in:
Adam Ierymenko 2019-08-23 12:03:13 -07:00
parent c79360f58b
commit 52d55e34e6
No known key found for this signature in database
GPG Key ID: 1657198823E52A61
8 changed files with 169 additions and 212 deletions

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@ -1,28 +1,15 @@
/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2019 ZeroTier, Inc. https://www.zerotier.com/
* Copyright (c)2019 ZeroTier, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* This program 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 General Public License for more details.
* Change Date: 2023-01-01
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial closed-source software that incorporates or links
* directly against ZeroTier software without disclosing the source code
* of your own application.
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
#include "AES.hpp"
#include "Constants.hpp"

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@ -1,28 +1,15 @@
/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2019 ZeroTier, Inc. https://www.zerotier.com/
* Copyright (c)2019 ZeroTier, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* This program 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 General Public License for more details.
* Change Date: 2023-01-01
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial closed-source software that incorporates or links
* directly against ZeroTier software without disclosing the source code
* of your own application.
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
#ifndef ZT_AES_HPP
#define ZT_AES_HPP
@ -462,21 +449,6 @@ private:
a = _mm_xor_si128(a, b);
return a;
}
/*static inline void _expand128_aesni(__m128i schedule[10],const void *const key)
{
__m128i t;
schedule[0] = t = _mm_loadu_si128((const __m128i *)key);
schedule[1] = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x01));
schedule[2] = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x02));
schedule[3] = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x04));
schedule[4] = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x08));
schedule[5] = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x10));
schedule[6] = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x20));
schedule[7] = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x40));
schedule[8] = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x80));
schedule[9] = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x1b));
schedule[10] = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x36));
}*/
static inline void _scramble_aesni(const uint8_t key[16],const uint8_t *in,uint8_t *out,unsigned int len)
{
__m128i t = _mm_loadu_si128((const __m128i *)key);
@ -486,17 +458,28 @@ private:
__m128i k3 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x04));
__m128i k4 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x08));
__m128i k5 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x10));
__m128i k6 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x20));
__m128i k7 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x40));
__m128i k8 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x80));
__m128i k9 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x1b));
__m128i k10 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x36));
__m128i ctr = _mm_setzero_si128();
const __m128i one = _mm_set_epi32(0,0,0,1);
while (len >= 64) {
len -= 64;
__m128i d0 = _mm_loadu_si128((const __m128i *)in);
__m128i d0 = _mm_xor_si128(_mm_loadu_si128((const __m128i *)in),ctr);
ctr = _mm_add_epi64(ctr,one);
in += 16;
__m128i d1 = _mm_loadu_si128((const __m128i *)in);
__m128i d1 = _mm_xor_si128(_mm_loadu_si128((const __m128i *)in),ctr);
ctr = _mm_add_epi64(ctr,one);
in += 16;
__m128i d2 = _mm_loadu_si128((const __m128i *)in);
__m128i d2 = _mm_xor_si128(_mm_loadu_si128((const __m128i *)in),ctr);
ctr = _mm_add_epi64(ctr,one);
in += 16;
__m128i d3 = _mm_loadu_si128((const __m128i *)in);
__m128i d3 = _mm_xor_si128(_mm_loadu_si128((const __m128i *)in),ctr);
ctr = _mm_add_epi64(ctr,one);
in += 16;
d0 = _mm_xor_si128(d0,k0);
@ -519,21 +502,42 @@ private:
d1 = _mm_aesenc_si128(d1,k4);
d2 = _mm_aesenc_si128(d2,k4);
d3 = _mm_aesenc_si128(d3,k4);
d0 = _mm_aesenc_si128(d0,k5);
d1 = _mm_aesenc_si128(d1,k5);
d2 = _mm_aesenc_si128(d2,k5);
d3 = _mm_aesenc_si128(d3,k5);
d0 = _mm_aesenc_si128(d0,k6);
d1 = _mm_aesenc_si128(d1,k6);
d2 = _mm_aesenc_si128(d2,k6);
d3 = _mm_aesenc_si128(d3,k6);
d0 = _mm_aesenc_si128(d0,k7);
d1 = _mm_aesenc_si128(d1,k7);
d2 = _mm_aesenc_si128(d2,k7);
d3 = _mm_aesenc_si128(d3,k7);
d0 = _mm_aesenc_si128(d0,k8);
d1 = _mm_aesenc_si128(d1,k8);
d2 = _mm_aesenc_si128(d2,k8);
d3 = _mm_aesenc_si128(d3,k8);
d0 = _mm_aesenc_si128(d0,k9);
d1 = _mm_aesenc_si128(d1,k9);
d2 = _mm_aesenc_si128(d2,k9);
d3 = _mm_aesenc_si128(d3,k9);
_mm_storeu_si128((__m128i *)out,_mm_aesenclast_si128(d0,k5));
_mm_storeu_si128((__m128i *)out,_mm_aesenclast_si128(d0,k10));
out += 16;
_mm_storeu_si128((__m128i *)out,_mm_aesenclast_si128(d1,k5));
_mm_storeu_si128((__m128i *)out,_mm_aesenclast_si128(d1,k10));
out += 16;
_mm_storeu_si128((__m128i *)out,_mm_aesenclast_si128(d2,k5));
_mm_storeu_si128((__m128i *)out,_mm_aesenclast_si128(d2,k10));
out += 16;
_mm_storeu_si128((__m128i *)out,_mm_aesenclast_si128(d3,k5));
_mm_storeu_si128((__m128i *)out,_mm_aesenclast_si128(d3,k10));
out += 16;
}
while (len >= 16) {
len -= 16;
__m128i d0 = _mm_loadu_si128((const __m128i *)in);
__m128i d0 = _mm_xor_si128(_mm_loadu_si128((const __m128i *)in),ctr);
ctr = _mm_add_epi64(ctr,one);
in += 16;
d0 = _mm_xor_si128(d0,k0);
@ -541,20 +545,30 @@ private:
d0 = _mm_aesenc_si128(d0,k2);
d0 = _mm_aesenc_si128(d0,k3);
d0 = _mm_aesenc_si128(d0,k4);
d0 = _mm_aesenc_si128(d0,k5);
d0 = _mm_aesenc_si128(d0,k6);
d0 = _mm_aesenc_si128(d0,k7);
d0 = _mm_aesenc_si128(d0,k8);
d0 = _mm_aesenc_si128(d0,k9);
_mm_storeu_si128((__m128i *)out,_mm_aesenclast_si128(d0,k5));
_mm_storeu_si128((__m128i *)out,_mm_aesenclast_si128(d0,k10));
out += 16;
}
if (len) {
__m128i last = _mm_setzero_si128();
__m128i last = ctr;
last = _mm_xor_si128(last,k0);
last = _mm_aesenc_si128(last,k1);
last = _mm_aesenc_si128(last,k2);
last = _mm_aesenc_si128(last,k3);
last = _mm_aesenc_si128(last,k4);
last = _mm_aesenc_si128(last,k5);
last = _mm_aesenc_si128(last,k6);
last = _mm_aesenc_si128(last,k7);
last = _mm_aesenc_si128(last,k8);
last = _mm_aesenc_si128(last,k9);
uint8_t lpad[16];
_mm_storeu_si128((__m128i *)lpad,_mm_aesenclast_si128(last,k5));
_mm_storeu_si128((__m128i *)lpad,_mm_aesenclast_si128(last,k10));
for(unsigned int i=0;i<len;++i) {
out[i] = in[i] ^ lpad[i];
}
@ -563,16 +577,28 @@ private:
static inline void _unscramble_aesni(const uint8_t key[16],const uint8_t *in,uint8_t *out,unsigned int len)
{
__m128i t = _mm_loadu_si128((const __m128i *)key);
__m128i dk5 = t; // k0
__m128i dk10 = t; // k0
__m128i k1 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x01));
__m128i k2 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x02));
__m128i k3 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x04));
__m128i k4 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x08));
__m128i dk0 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x10)); // k5
__m128i dk1 = _mm_aesimc_si128(k4);
__m128i dk2 = _mm_aesimc_si128(k3);
__m128i dk3 = _mm_aesimc_si128(k2);
__m128i dk4 = _mm_aesimc_si128(k1);
__m128i k5 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x10));
__m128i k6 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x20));
__m128i k7 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x40));
__m128i k8 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x80));
__m128i k9 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x1b));
__m128i dk0 = t = _assist128_aesni(t, _mm_aeskeygenassist_si128(t, 0x36)); // k10
__m128i dk1 = _mm_aesimc_si128(k9);
__m128i dk2 = _mm_aesimc_si128(k8);
__m128i dk3 = _mm_aesimc_si128(k7);
__m128i dk4 = _mm_aesimc_si128(k6);
__m128i dk5 = _mm_aesimc_si128(k5);
__m128i dk6 = _mm_aesimc_si128(k4);
__m128i dk7 = _mm_aesimc_si128(k3);
__m128i dk8 = _mm_aesimc_si128(k2);
__m128i dk9 = _mm_aesimc_si128(k1);
__m128i ctr = _mm_setzero_si128();
const __m128i one = _mm_set_epi32(0,0,0,1);
while (len >= 64) {
len -= 64;
@ -606,14 +632,38 @@ private:
d1 = _mm_aesdec_si128(d1,dk4);
d2 = _mm_aesdec_si128(d2,dk4);
d3 = _mm_aesdec_si128(d3,dk4);
d0 = _mm_aesdec_si128(d0,dk5);
d1 = _mm_aesdec_si128(d1,dk5);
d2 = _mm_aesdec_si128(d2,dk5);
d3 = _mm_aesdec_si128(d3,dk5);
d0 = _mm_aesdec_si128(d0,dk6);
d1 = _mm_aesdec_si128(d1,dk6);
d2 = _mm_aesdec_si128(d2,dk6);
d3 = _mm_aesdec_si128(d3,dk6);
d0 = _mm_aesdec_si128(d0,dk7);
d1 = _mm_aesdec_si128(d1,dk7);
d2 = _mm_aesdec_si128(d2,dk7);
d3 = _mm_aesdec_si128(d3,dk7);
d0 = _mm_aesdec_si128(d0,dk8);
d1 = _mm_aesdec_si128(d1,dk8);
d2 = _mm_aesdec_si128(d2,dk8);
d3 = _mm_aesdec_si128(d3,dk8);
d0 = _mm_aesdec_si128(d0,dk9);
d1 = _mm_aesdec_si128(d1,dk9);
d2 = _mm_aesdec_si128(d2,dk9);
d3 = _mm_aesdec_si128(d3,dk9);
_mm_storeu_si128((__m128i *)out,_mm_aesdeclast_si128(d0,dk5));
_mm_storeu_si128((__m128i *)out,_mm_xor_si128(_mm_aesdeclast_si128(d0,dk10),ctr));
ctr = _mm_add_epi64(ctr,one);
out += 16;
_mm_storeu_si128((__m128i *)out,_mm_aesdeclast_si128(d1,dk5));
_mm_storeu_si128((__m128i *)out,_mm_xor_si128(_mm_aesdeclast_si128(d1,dk10),ctr));
ctr = _mm_add_epi64(ctr,one);
out += 16;
_mm_storeu_si128((__m128i *)out,_mm_aesdeclast_si128(d2,dk5));
_mm_storeu_si128((__m128i *)out,_mm_xor_si128(_mm_aesdeclast_si128(d2,dk10),ctr));
ctr = _mm_add_epi64(ctr,one);
out += 16;
_mm_storeu_si128((__m128i *)out,_mm_aesdeclast_si128(d3,dk5));
_mm_storeu_si128((__m128i *)out,_mm_xor_si128(_mm_aesdeclast_si128(d3,dk10),ctr));
ctr = _mm_add_epi64(ctr,one);
out += 16;
}
@ -628,20 +678,31 @@ private:
d0 = _mm_aesdec_si128(d0,dk2);
d0 = _mm_aesdec_si128(d0,dk3);
d0 = _mm_aesdec_si128(d0,dk4);
d0 = _mm_aesdec_si128(d0,dk5);
d0 = _mm_aesdec_si128(d0,dk6);
d0 = _mm_aesdec_si128(d0,dk7);
d0 = _mm_aesdec_si128(d0,dk8);
d0 = _mm_aesdec_si128(d0,dk9);
_mm_storeu_si128((__m128i *)out,_mm_aesdeclast_si128(d0,dk5));
_mm_storeu_si128((__m128i *)out,_mm_xor_si128(_mm_aesdeclast_si128(d0,dk10),ctr));
ctr = _mm_add_epi64(ctr,one);
out += 16;
}
if (len) {
__m128i last = _mm_setzero_si128();
last = _mm_xor_si128(last,dk5); // k0
__m128i last = ctr;
last = _mm_xor_si128(last,dk10); // k0
last = _mm_aesenc_si128(last,k1);
last = _mm_aesenc_si128(last,k2);
last = _mm_aesenc_si128(last,k3);
last = _mm_aesenc_si128(last,k4);
last = _mm_aesenc_si128(last,k5);
last = _mm_aesenc_si128(last,k6);
last = _mm_aesenc_si128(last,k7);
last = _mm_aesenc_si128(last,k8);
last = _mm_aesenc_si128(last,k9);
uint8_t lpad[16];
_mm_storeu_si128((__m128i *)lpad,_mm_aesenclast_si128(last,dk0)); // k5
_mm_storeu_si128((__m128i *)lpad,_mm_aesenclast_si128(last,dk0)); // k10
for(unsigned int i=0;i<len;++i) {
out[i] = in[i] ^ lpad[i];
}

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@ -1,28 +1,15 @@
/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2019 ZeroTier, Inc. https://www.zerotier.com/
* Copyright (c)2019 ZeroTier, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* This program 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 General Public License for more details.
* Change Date: 2023-01-01
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial closed-source software that incorporates or links
* directly against ZeroTier software without disclosing the source code
* of your own application.
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
#include "Constants.hpp"
#include "RuntimeEnvironment.hpp"

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@ -1,28 +1,8 @@
/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2019 ZeroTier, Inc. https://www.zerotier.com/
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial closed-source software that incorporates or links
* directly against ZeroTier software without disclosing the source code
* of your own application.
*/
//////////////////////////////////////////////////////////////////////////////
// This is EASY-ECC by Kenneth MacKay
// https://github.com/esxgx/easy-ecc
// This code is under the BSD 2-clause license, not ZeroTier's license
//////////////////////////////////////////////////////////////////////////////
#include <stdio.h>
#include <stdlib.h>
@ -36,12 +16,6 @@
namespace ZeroTier {
namespace {
//////////////////////////////////////////////////////////////////////////////
// This is EASY-ECC by Kenneth MacKay
// https://github.com/esxgx/easy-ecc
// This code is under the BSD 2-clause license, not ZeroTier's license
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// ecc.h from easy-ecc
//////////////////////////////////////////////////////////////////////////////

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@ -1,28 +1,15 @@
/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2019 ZeroTier, Inc. https://www.zerotier.com/
* Copyright (c)2019 ZeroTier, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* This program 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 General Public License for more details.
* Change Date: 2023-01-01
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial closed-source software that incorporates or links
* directly against ZeroTier software without disclosing the source code
* of your own application.
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
// This is glue code to ease the use of the NIST P-384 elliptic curve.

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@ -1,28 +1,15 @@
/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2019 ZeroTier, Inc. https://www.zerotier.com/
* Copyright (c)2019 ZeroTier, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* This program 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 General Public License for more details.
* Change Date: 2023-01-01
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial closed-source software that incorporates or links
* directly against ZeroTier software without disclosing the source code
* of your own application.
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
#ifndef ZT_LOCATOR_HPP
#define ZT_LOCATOR_HPP

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@ -1,28 +1,15 @@
/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2019 ZeroTier, Inc. https://www.zerotier.com/
* Copyright (c)2019 ZeroTier, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* This program 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 General Public License for more details.
* Change Date: 2023-01-01
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial closed-source software that incorporates or links
* directly against ZeroTier software without disclosing the source code
* of your own application.
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
#ifndef ZT_ROOT_HPP
#define ZT_ROOT_HPP

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@ -1,28 +1,15 @@
/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2019 ZeroTier, Inc. https://www.zerotier.com/
* Copyright (c)2019 ZeroTier, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* This program 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 General Public License for more details.
* Change Date: 2023-01-01
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial closed-source software that incorporates or links
* directly against ZeroTier software without disclosing the source code
* of your own application.
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
#ifndef ZT_STR_HPP
#define ZT_STR_HPP