+/*
+ * Copyright (c) 2008 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
/* $FreeBSD: src/sys/netinet6/esp_core.c,v 1.1.2.4 2002/03/26 10:12:29 ume Exp $ */
/* $KAME: esp_core.c,v 1.50 2000/11/02 12:27:38 itojun Exp $ */
static int esp_des_blockencrypt(const struct esp_algorithm *,
struct secasvar *, u_int8_t *, u_int8_t *);
static int esp_cbc_mature(struct secasvar *);
+#if ALLCRYPTO
static int esp_blowfish_schedule(const struct esp_algorithm *,
struct secasvar *);
static int esp_blowfish_schedlen(const struct esp_algorithm *);
struct secasvar *, u_int8_t *, u_int8_t *);
static int esp_cast128_blockencrypt(const struct esp_algorithm *,
struct secasvar *, u_int8_t *, u_int8_t *);
+#endif /* ALLCRYPTO */
static int esp_3des_schedule(const struct esp_algorithm *,
struct secasvar *);
static int esp_3des_schedlen(const struct esp_algorithm *);
#define MAXIVLEN 16
-static const struct esp_algorithm esp_algorithms[] = {
+static const struct esp_algorithm des_cbc =
{ 8, -1, esp_descbc_mature, 64, 64, esp_des_schedlen,
"des-cbc",
esp_descbc_ivlen, esp_cbc_decrypt,
esp_cbc_encrypt, esp_des_schedule,
- esp_des_blockdecrypt, esp_des_blockencrypt, },
+ esp_des_blockdecrypt, esp_des_blockencrypt, };
+static const struct esp_algorithm des3_cbc =
{ 8, 8, esp_cbc_mature, 192, 192, esp_3des_schedlen,
"3des-cbc",
esp_common_ivlen, esp_cbc_decrypt,
esp_cbc_encrypt, esp_3des_schedule,
- esp_3des_blockdecrypt, esp_3des_blockencrypt, },
+ esp_3des_blockdecrypt, esp_3des_blockencrypt, };
+static const struct esp_algorithm null_esp =
{ 1, 0, esp_null_mature, 0, 2048, 0, "null",
esp_common_ivlen, esp_null_decrypt,
- esp_null_encrypt, NULL, },
+ esp_null_encrypt, NULL, NULL, NULL };
+#if ALLCRYPTO
+static const struct esp_algorithm blowfish_cbc =
{ 8, 8, esp_cbc_mature, 40, 448, esp_blowfish_schedlen, "blowfish-cbc",
esp_common_ivlen, esp_cbc_decrypt,
esp_cbc_encrypt, esp_blowfish_schedule,
- esp_blowfish_blockdecrypt, esp_blowfish_blockencrypt, },
+ esp_blowfish_blockdecrypt, esp_blowfish_blockencrypt, };
+static const struct esp_algorithm cast128_cbc =
{ 8, 8, esp_cbc_mature, 40, 128, esp_cast128_schedlen,
"cast128-cbc",
esp_common_ivlen, esp_cbc_decrypt,
esp_cbc_encrypt, esp_cast128_schedule,
- esp_cast128_blockdecrypt, esp_cast128_blockencrypt, },
+ esp_cast128_blockdecrypt, esp_cast128_blockencrypt, };
+#endif /* ALLCRYPTO */
+static const struct esp_algorithm aes_cbc =
{ 16, 16, esp_cbc_mature, 128, 256, esp_aes_schedlen,
"aes-cbc",
esp_common_ivlen, esp_cbc_decrypt_aes,
esp_cbc_encrypt_aes, esp_aes_schedule,
- 0, 0 },
+ 0, 0 };
+
+static const struct esp_algorithm *esp_algorithms[] = {
+ &des_cbc,
+ &des3_cbc,
+ &null_esp,
+#if ALLCRYPTO
+ &blowfish_cbc,
+ &cast128_cbc,
+#endif /* ALLCRYPTO */
+ &aes_cbc
};
const struct esp_algorithm *
switch (idx) {
case SADB_EALG_DESCBC:
- return &esp_algorithms[0];
+ return &des_cbc;
case SADB_EALG_3DESCBC:
- return &esp_algorithms[1];
+ return &des3_cbc;
case SADB_EALG_NULL:
- return &esp_algorithms[2];
+ return &null_esp;
+#if ALLCRYPTO
case SADB_X_EALG_BLOWFISHCBC:
- return &esp_algorithms[3];
+ return &blowfish_cbc;
case SADB_X_EALG_CAST128CBC:
- return &esp_algorithms[4];
+ return &cast128_cbc;
+#endif /* ALLCRYPTO */
case SADB_X_EALG_RIJNDAELCBC:
- return &esp_algorithms[5];
+ return &aes_cbc;
default:
return NULL;
}
ivlen = 0;
for (idx = 0; idx < sizeof(esp_algorithms)/sizeof(esp_algorithms[0]);
idx++) {
- if (esp_algorithms[idx].ivlenval > ivlen)
- ivlen = esp_algorithms[idx].ivlenval;
+ if (esp_algorithms[idx]->ivlenval > ivlen)
+ ivlen = esp_algorithms[idx]->ivlenval;
}
return ivlen;
return EINVAL;
}
+ lck_mtx_lock(sadb_mutex);
/* already allocated */
- if (sav->sched && sav->schedlen != 0)
+ if (sav->sched && sav->schedlen != 0) {
+ lck_mtx_unlock(sadb_mutex);
return 0;
+ }
/* no schedule necessary */
- if (!algo->schedule || !algo->schedlen)
+ if (!algo->schedule || !algo->schedlen) {
+ lck_mtx_unlock(sadb_mutex);
return 0;
-
+ }
+
sav->schedlen = (*algo->schedlen)(algo);
- if (sav->schedlen < 0)
+ if ((signed) sav->schedlen < 0) {
+ lck_mtx_unlock(sadb_mutex);
return EINVAL;
+ }
//#### that malloc should be replaced by a saved buffer...
sav->sched = _MALLOC(sav->schedlen, M_SECA, M_DONTWAIT);
if (!sav->sched) {
sav->schedlen = 0;
+ lck_mtx_unlock(sadb_mutex);
return ENOBUFS;
}
sav->sched = NULL;
sav->schedlen = 0;
}
+ lck_mtx_unlock(sadb_mutex);
return error;
}
static int
-esp_null_mature(sav)
- struct secasvar *sav;
+esp_null_mature(
+ __unused struct secasvar *sav)
{
/* anything is okay */
}
static int
-esp_null_decrypt(m, off, sav, algo, ivlen)
- struct mbuf *m;
- size_t off; /* offset to ESP header */
- struct secasvar *sav;
- const struct esp_algorithm *algo;
- int ivlen;
+esp_null_decrypt(
+ __unused struct mbuf *m,
+ __unused size_t off, /* offset to ESP header */
+ __unused struct secasvar *sav,
+ __unused const struct esp_algorithm *algo,
+ __unused int ivlen)
{
return 0; /* do nothing */
}
static int
-esp_null_encrypt(m, off, plen, sav, algo, ivlen)
- struct mbuf *m;
- size_t off; /* offset to ESP header */
- size_t plen; /* payload length (to be encrypted) */
- struct secasvar *sav;
- const struct esp_algorithm *algo;
- int ivlen;
+esp_null_encrypt(
+ __unused struct mbuf *m,
+ __unused size_t off, /* offset to ESP header */
+ __unused size_t plen, /* payload length (to be encrypted) */
+ __unused struct secasvar *sav,
+ __unused const struct esp_algorithm *algo,
+ __unused int ivlen)
{
return 0; /* do nothing */
}
static int
-esp_descbc_ivlen(algo, sav)
- const struct esp_algorithm *algo;
- struct secasvar *sav;
+esp_descbc_ivlen(
+ __unused const struct esp_algorithm *algo,
+ struct secasvar *sav)
{
if (!sav)
}
static int
-esp_des_schedlen(algo)
- const struct esp_algorithm *algo;
+esp_des_schedlen(
+ __unused const struct esp_algorithm *algo)
{
return sizeof(des_key_schedule);
}
static int
-esp_des_schedule(algo, sav)
- const struct esp_algorithm *algo;
- struct secasvar *sav;
+esp_des_schedule(
+ __unused const struct esp_algorithm *algo,
+ struct secasvar *sav)
{
+ lck_mtx_assert(sadb_mutex, LCK_MTX_ASSERT_OWNED);
if (des_key_sched((des_cblock *)_KEYBUF(sav->key_enc),
*(des_key_schedule *)sav->sched))
return EINVAL;
}
static int
-esp_des_blockdecrypt(algo, sav, s, d)
- const struct esp_algorithm *algo;
- struct secasvar *sav;
- u_int8_t *s;
- u_int8_t *d;
+esp_des_blockdecrypt(
+ __unused const struct esp_algorithm *algo,
+ struct secasvar *sav,
+ u_int8_t *s,
+ u_int8_t *d)
{
/* assumption: d has a good alignment */
}
static int
-esp_des_blockencrypt(algo, sav, s, d)
- const struct esp_algorithm *algo;
- struct secasvar *sav;
- u_int8_t *s;
- u_int8_t *d;
+esp_des_blockencrypt(
+ __unused const struct esp_algorithm *algo,
+ struct secasvar *sav,
+ u_int8_t *s,
+ u_int8_t *d)
{
/* assumption: d has a good alignment */
return 0;
}
+#if ALLCRYPTO
static int
-esp_blowfish_schedlen(algo)
- const struct esp_algorithm *algo;
+esp_blowfish_schedlen(
+ __unused const struct esp_algorithm *algo)
{
return sizeof(BF_KEY);
}
static int
-esp_blowfish_schedule(algo, sav)
- const struct esp_algorithm *algo;
- struct secasvar *sav;
+esp_blowfish_schedule(
+ __unused const struct esp_algorithm *algo,
+ struct secasvar *sav)
{
+ lck_mtx_assert(sadb_mutex, LCK_MTX_ASSERT_OWNED);
BF_set_key((BF_KEY *)sav->sched, _KEYLEN(sav->key_enc),
- _KEYBUF(sav->key_enc));
+ (u_int8_t *) _KEYBUF(sav->key_enc));
return 0;
}
static int
-esp_blowfish_blockdecrypt(algo, sav, s, d)
- const struct esp_algorithm *algo;
- struct secasvar *sav;
- u_int8_t *s;
- u_int8_t *d;
+esp_blowfish_blockdecrypt(
+ __unused const struct esp_algorithm *algo,
+ struct secasvar *sav,
+ u_int8_t *s,
+ u_int8_t *d)
{
/* HOLY COW! BF_decrypt() takes values in host byteorder */
BF_LONG t[2];
}
static int
-esp_blowfish_blockencrypt(algo, sav, s, d)
- const struct esp_algorithm *algo;
- struct secasvar *sav;
- u_int8_t *s;
- u_int8_t *d;
+esp_blowfish_blockencrypt(
+ __unused const struct esp_algorithm *algo,
+ struct secasvar *sav,
+ u_int8_t *s,
+ u_int8_t *d)
{
/* HOLY COW! BF_encrypt() takes values in host byteorder */
BF_LONG t[2];
}
static int
-esp_cast128_schedlen(algo)
- const struct esp_algorithm *algo;
+esp_cast128_schedlen(
+ __unused const struct esp_algorithm *algo)
{
return sizeof(u_int32_t) * 32;
}
static int
-esp_cast128_schedule(algo, sav)
- const struct esp_algorithm *algo;
- struct secasvar *sav;
+esp_cast128_schedule(
+ __unused const struct esp_algorithm *algo,
+ struct secasvar *sav)
{
-
- set_cast128_subkey((u_int32_t *)sav->sched, _KEYBUF(sav->key_enc),
+ lck_mtx_assert(sadb_mutex, LCK_MTX_ASSERT_OWNED);
+ set_cast128_subkey((u_int32_t *)sav->sched, (u_int8_t *) _KEYBUF(sav->key_enc),
_KEYLEN(sav->key_enc));
return 0;
}
static int
-esp_cast128_blockdecrypt(algo, sav, s, d)
- const struct esp_algorithm *algo;
- struct secasvar *sav;
- u_int8_t *s;
- u_int8_t *d;
+esp_cast128_blockdecrypt(
+ __unused const struct esp_algorithm *algo,
+ struct secasvar *sav,
+ u_int8_t *s,
+ u_int8_t *d)
{
if (_KEYLEN(sav->key_enc) <= 80 / 8)
}
static int
-esp_cast128_blockencrypt(algo, sav, s, d)
- const struct esp_algorithm *algo;
- struct secasvar *sav;
- u_int8_t *s;
- u_int8_t *d;
+esp_cast128_blockencrypt(
+ __unused const struct esp_algorithm *algo,
+ struct secasvar *sav,
+ u_int8_t *s,
+ u_int8_t *d)
{
if (_KEYLEN(sav->key_enc) <= 80 / 8)
cast128_encrypt_round16(d, s, (u_int32_t *)sav->sched);
return 0;
}
+#endif /* ALLCRYPTO */
static int
-esp_3des_schedlen(algo)
- const struct esp_algorithm *algo;
+esp_3des_schedlen(
+ __unused const struct esp_algorithm *algo)
{
return sizeof(des_key_schedule) * 3;
}
static int
-esp_3des_schedule(algo, sav)
- const struct esp_algorithm *algo;
- struct secasvar *sav;
+esp_3des_schedule(
+ __unused const struct esp_algorithm *algo,
+ struct secasvar *sav)
{
int error;
des_key_schedule *p;
int i;
char *k;
+ lck_mtx_assert(sadb_mutex, LCK_MTX_ASSERT_OWNED);
p = (des_key_schedule *)sav->sched;
k = _KEYBUF(sav->key_enc);
for (i = 0; i < 3; i++) {
}
static int
-esp_3des_blockdecrypt(algo, sav, s, d)
- const struct esp_algorithm *algo;
- struct secasvar *sav;
- u_int8_t *s;
- u_int8_t *d;
+esp_3des_blockdecrypt(
+ __unused const struct esp_algorithm *algo,
+ struct secasvar *sav,
+ u_int8_t *s,
+ u_int8_t *d)
{
des_key_schedule *p;
}
static int
-esp_3des_blockencrypt(algo, sav, s, d)
- const struct esp_algorithm *algo;
- struct secasvar *sav;
- u_int8_t *s;
- u_int8_t *d;
+esp_3des_blockencrypt(
+ __unused const struct esp_algorithm *algo,
+ struct secasvar *sav,
+ u_int8_t *s,
+ u_int8_t *d)
{
des_key_schedule *p;
}
static int
-esp_common_ivlen(algo, sav)
- const struct esp_algorithm *algo;
- struct secasvar *sav;
+esp_common_ivlen(
+ const struct esp_algorithm *algo,
+ __unused struct secasvar *sav)
{
if (!algo)
}
/* grab iv */
- m_copydata(m, ivoff, ivlen, iv);
+ m_copydata(m, ivoff, ivlen, (caddr_t) iv);
/* extend iv */
if (ivlen == blocklen)
if (m->m_pkthdr.len < bodyoff) {
ipseclog((LOG_ERR, "esp_cbc_decrypt %s: bad len %d/%lu\n",
- algo->name, m->m_pkthdr.len, (unsigned long)bodyoff));
+ algo->name, m->m_pkthdr.len, (u_int32_t)bodyoff));
m_freem(m);
return EINVAL;
}
sp = mtod(s, u_int8_t *) + sn;
} else {
/* body is non-continuous */
- m_copydata(s, sn, blocklen, sbuf);
+ m_copydata(s, sn, blocklen, (caddr_t) sbuf);
sp = sbuf;
}
}
static int
-esp_cbc_encrypt(m, off, plen, sav, algo, ivlen)
- struct mbuf *m;
- size_t off;
- size_t plen;
- struct secasvar *sav;
- const struct esp_algorithm *algo;
- int ivlen;
+esp_cbc_encrypt(
+ struct mbuf *m,
+ size_t off,
+ __unused size_t plen,
+ struct secasvar *sav,
+ const struct esp_algorithm *algo,
+ int ivlen)
{
struct mbuf *s;
struct mbuf *d, *d0, *dp;
/* put iv into the packet. if we are in derived mode, use seqno. */
if (derived)
- m_copydata(m, ivoff, ivlen, iv);
+ m_copydata(m, ivoff, ivlen, (caddr_t) iv);
else {
bcopy(sav->iv, iv, ivlen);
/* maybe it is better to overwrite dest, not source */
- m_copyback(m, ivoff, ivlen, iv);
+ m_copyback(m, ivoff, ivlen, (caddr_t) iv);
}
/* extend iv */
if (m->m_pkthdr.len < bodyoff) {
ipseclog((LOG_ERR, "esp_cbc_encrypt %s: bad len %d/%lu\n",
- algo->name, m->m_pkthdr.len, (unsigned long)bodyoff));
+ algo->name, m->m_pkthdr.len, (u_int32_t)bodyoff));
m_freem(m);
return EINVAL;
}
if ((m->m_pkthdr.len - bodyoff) % blocklen) {
ipseclog((LOG_ERR, "esp_cbc_encrypt %s: "
"payload length must be multiple of %lu\n",
- algo->name, (unsigned long)algo->padbound));
+ algo->name, (u_int32_t)algo->padbound));
m_freem(m);
return EINVAL;
}
sp = mtod(s, u_int8_t *) + sn;
} else {
/* body is non-continuous */
- m_copydata(s, sn, blocklen, sbuf);
+ m_copydata(s, sn, blocklen, (caddr_t) sbuf);
sp = sbuf;
}
if (sizeof(sumbuf) < siz) {
ipseclog((LOG_DEBUG,
"esp_auth: AH_MAXSUMSIZE is too small: siz=%lu\n",
- (u_long)siz));
+ (u_int32_t)siz));
KERNEL_DEBUG(DBG_FNC_ESPAUTH | DBG_FUNC_END, 4,0,0,0,0);
return EINVAL;
}
KERNEL_DEBUG(DBG_FNC_ESPAUTH | DBG_FUNC_END, 5,0,0,0,0);
return error;
}
- lck_mtx_unlock(sadb_mutex);
while (0 < length) {
if (!m)
panic("mbuf chain?");
if (m->m_len - off < length) {
- (*algo->update)(&s, mtod(m, u_char *) + off,
+ (*algo->update)(&s, (caddr_t)(mtod(m, u_char *) + off),
m->m_len - off);
length -= m->m_len - off;
m = m->m_next;
off = 0;
} else {
- (*algo->update)(&s, mtod(m, u_char *) + off, length);
+ (*algo->update)(&s, (caddr_t)(mtod(m, u_char *) + off), length);
break;
}
}
- (*algo->result)(&s, sumbuf);
+ (*algo->result)(&s, (caddr_t) sumbuf);
bcopy(sumbuf, sum, siz); /*XXX*/
- lck_mtx_lock(sadb_mutex);
KERNEL_DEBUG(DBG_FNC_ESPAUTH | DBG_FUNC_END, 6,0,0,0,0);
return 0;
}
projects / apple / xnu.git / blobdiff