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Differential D33529 Diff 101326 sys/opencrypto/xform_null.c

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sys/opencrypto/xform_null.c

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#include <sys/cdefs.h> #include <sys/cdefs.h>
__FBSDID("$FreeBSD$"); __FBSDID("$FreeBSD$");
#include <opencrypto/xform_auth.h> #include <opencrypto/xform_auth.h>
#include <opencrypto/xform_enc.h> #include <opencrypto/xform_enc.h>
static int null_setkey(void *, const uint8_t *, int); static int null_setkey(void *, const uint8_t *, int);
static void null_crypt(void *, const uint8_t *, uint8_t *); static void null_crypt(void *, const uint8_t *, uint8_t *);
static void null_crypt_multi(void *, const uint8_t *, uint8_t *, size_t);
static void null_init(void *); static void null_init(void *);
static void null_reinit(void *ctx, const uint8_t *buf, u_int len); static void null_reinit(void *ctx, const uint8_t *buf, u_int len);
static int null_update(void *, const void *, u_int); static int null_update(void *, const void *, u_int);
static void null_final(uint8_t *, void *); static void null_final(uint8_t *, void *);
/* Encryption instances */ /* Encryption instances */
const struct enc_xform enc_xform_null = { const struct enc_xform enc_xform_null = {
.type = CRYPTO_NULL_CBC, .type = CRYPTO_NULL_CBC,
.name = "NULL", .name = "NULL",
/* NB: blocksize of 4 is to generate a properly aligned ESP header */ /* NB: blocksize of 4 is to generate a properly aligned ESP header */
.blocksize = NULL_BLOCK_LEN, .blocksize = NULL_BLOCK_LEN,
.ivsize = 0, .ivsize = 0,
.minkey = NULL_MIN_KEY, .minkey = NULL_MIN_KEY,
.maxkey = NULL_MAX_KEY, .maxkey = NULL_MAX_KEY,
.setkey = null_setkey,
.encrypt = null_crypt, .encrypt = null_crypt,
.decrypt = null_crypt, .decrypt = null_crypt,
.setkey = null_setkey, .encrypt_multi = null_crypt_multi,
.decrypt_multi = null_crypt_multi,
}; };
/* Authentication instances */ /* Authentication instances */
const struct auth_hash auth_hash_null = { const struct auth_hash auth_hash_null = {
.type = CRYPTO_NULL_HMAC, .type = CRYPTO_NULL_HMAC,
.name = "NULL-HMAC", .name = "NULL-HMAC",
.keysize = 0, .keysize = 0,
.hashsize = NULL_HASH_LEN, .hashsize = NULL_HASH_LEN,
.ctxsize = sizeof(int), /* NB: context isn't used */ .ctxsize = sizeof(int), /* NB: context isn't used */
.blocksize = NULL_HMAC_BLOCK_LEN, .blocksize = NULL_HMAC_BLOCK_LEN,
.Init = null_init, .Init = null_init,
.Setkey = null_reinit, .Setkey = null_reinit,
.Reinit = null_reinit, .Reinit = null_reinit,
.Update = null_update, .Update = null_update,
.Final = null_final, .Final = null_final,
}; };
/* /*
* Encryption wrapper routines. * Encryption wrapper routines.
*/ */
static void static void
null_crypt(void *key, const uint8_t *in, uint8_t *out) null_crypt(void *key, const uint8_t *in, uint8_t *out)
{
}
static void
null_crypt_multi(void *key, const uint8_t *in, uint8_t *out, size_t len)
{ {
} }
static int static int
null_setkey(void *sched, const uint8_t *key, int len) null_setkey(void *sched, const uint8_t *key, int len)
{ {
return (0); return (0);
} }
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