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D42783.diff
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D42783.diff

diff --git a/sys/crypto/openssl/ossl_aes.c b/sys/crypto/openssl/ossl_aes.c
--- a/sys/crypto/openssl/ossl_aes.c
+++ b/sys/crypto/openssl/ossl_aes.c
@@ -167,10 +167,9 @@
ossl_aes_gcm(struct ossl_session_cipher *s, struct cryptop *crp,
const struct crypto_session_params *csp)
{
- struct ossl_cipher_context key;
+ struct ossl_gcm_context ctx;
struct crypto_buffer_cursor cc_in, cc_out;
unsigned char iv[AES_BLOCK_LEN], tag[AES_BLOCK_LEN];
- struct ossl_gcm_context *ctx;
const unsigned char *inseg;
unsigned char *outseg;
size_t inlen, outlen, seglen;
@@ -182,24 +181,25 @@
if (crp->crp_cipher_key != NULL) {
if (encrypt)
error = s->cipher->set_encrypt_key(crp->crp_cipher_key,
- 8 * csp->csp_cipher_klen, &key);
+ 8 * csp->csp_cipher_klen,
+ (struct ossl_cipher_context *)&ctx);
else
error = s->cipher->set_decrypt_key(crp->crp_cipher_key,
- 8 * csp->csp_cipher_klen, &key);
+ 8 * csp->csp_cipher_klen,
+ (struct ossl_cipher_context *)&ctx);
if (error)
return (error);
- ctx = (struct ossl_gcm_context *)&key;
} else if (encrypt) {
- ctx = (struct ossl_gcm_context *)&s->enc_ctx;
+ memcpy(&ctx, &s->enc_ctx, sizeof(struct ossl_gcm_context));
} else {
- ctx = (struct ossl_gcm_context *)&s->dec_ctx;
+ memcpy(&ctx, &s->dec_ctx, sizeof(struct ossl_gcm_context));
}
crypto_read_iv(crp, iv);
- ctx->ops->setiv(ctx, iv, csp->csp_ivlen);
+ ctx.ops->setiv(&ctx, iv, csp->csp_ivlen);
if (crp->crp_aad != NULL) {
- if (ctx->ops->aad(ctx, crp->crp_aad, crp->crp_aad_length) != 0)
+ if (ctx.ops->aad(&ctx, crp->crp_aad, crp->crp_aad_length) != 0)
return (EINVAL);
} else {
crypto_cursor_init(&cc_in, &crp->crp_buf);
@@ -208,7 +208,7 @@
alen -= seglen) {
inseg = crypto_cursor_segment(&cc_in, &inlen);
seglen = MIN(alen, inlen);
- if (ctx->ops->aad(ctx, inseg, seglen) != 0)
+ if (ctx.ops->aad(&ctx, inseg, seglen) != 0)
return (EINVAL);
crypto_cursor_advance(&cc_in, seglen);
}
@@ -229,10 +229,10 @@
seglen = MIN(plen, MIN(inlen, outlen));
if (encrypt) {
- if (ctx->ops->encrypt(ctx, inseg, outseg, seglen) != 0)
+ if (ctx.ops->encrypt(&ctx, inseg, outseg, seglen) != 0)
return (EINVAL);
} else {
- if (ctx->ops->decrypt(ctx, inseg, outseg, seglen) != 0)
+ if (ctx.ops->decrypt(&ctx, inseg, outseg, seglen) != 0)
return (EINVAL);
}
@@ -242,18 +242,19 @@
error = 0;
if (encrypt) {
- ctx->ops->tag(ctx, tag, GMAC_DIGEST_LEN);
+ ctx.ops->tag(&ctx, tag, GMAC_DIGEST_LEN);
crypto_copyback(crp, crp->crp_digest_start, GMAC_DIGEST_LEN,
tag);
} else {
crypto_copydata(crp, crp->crp_digest_start, GMAC_DIGEST_LEN,
tag);
- if (ctx->ops->finish(ctx, tag, GMAC_DIGEST_LEN) != 0)
+ if (ctx.ops->finish(&ctx, tag, GMAC_DIGEST_LEN) != 0)
error = EBADMSG;
}
explicit_bzero(iv, sizeof(iv));
explicit_bzero(tag, sizeof(tag));
+ explicit_bzero(&ctx, sizeof(ctx));
return (error);
}

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