Chuck Lever <chuck.lever@xxxxxxxxxx> wrote:
> Really? My understanding of the Linux kernel SUNRPC implementation is
> that it uses asynchronous, even for small data items. Maybe I'm using
> the terminology incorrectly.
Seems to be synchronous, at least in its use of skcipher:
grep -e skcipher *
gss_krb5_crypto.c:#include <crypto/skcipher.h>
gss_krb5_crypto.c: struct crypto_sync_skcipher *tfm,
gss_krb5_crypto.c: if (length % crypto_sync_skcipher_blocksize(tfm) != 0)
gss_krb5_crypto.c: if (crypto_sync_skcipher_ivsize(tfm) > GSS_KRB5_MAX_BLOCKSIZE) {
gss_krb5_crypto.c: crypto_sync_skcipher_ivsize(tfm));
gss_krb5_crypto.c: memcpy(local_iv, iv, crypto_sync_skcipher_ivsize(tfm));
gss_krb5_crypto.c: skcipher_request_set_sync_tfm(req, tfm);
gss_krb5_crypto.c: skcipher_request_set_callback(req, 0, NULL, NULL);
gss_krb5_crypto.c: skcipher_request_set_crypt(req, sg, sg, length, local_iv);
gss_krb5_crypto.c: ret = crypto_skcipher_encrypt(req);
gss_krb5_crypto.c: skcipher_request_zero(req);
gss_krb5_crypto.c: struct crypto_sync_skcipher *tfm,
gss_krb5_crypto.c: if (length % crypto_sync_skcipher_blocksize(tfm) != 0)
gss_krb5_crypto.c: if (crypto_sync_skcipher_ivsize(tfm) > GSS_KRB5_MAX_BLOCKSIZE) {
gss_krb5_crypto.c: crypto_sync_skcipher_ivsize(tfm));
gss_krb5_crypto.c: memcpy(local_iv, iv, crypto_sync_skcipher_ivsize(tfm));
gss_krb5_crypto.c: skcipher_request_set_sync_tfm(req, tfm);
gss_krb5_crypto.c: skcipher_request_set_callback(req, 0, NULL, NULL);
gss_krb5_crypto.c: skcipher_request_set_crypt(req, sg, sg, length, local_iv);
gss_krb5_crypto.c: ret = crypto_skcipher_decrypt(req);
gss_krb5_crypto.c: skcipher_request_zero(req);
gss_krb5_crypto.c: struct skcipher_request *req;
gss_krb5_crypto.c: struct crypto_sync_skcipher *tfm =
gss_krb5_crypto.c: crypto_sync_skcipher_reqtfm(desc->req);
gss_krb5_crypto.c: fraglen = thislen & (crypto_sync_skcipher_blocksize(tfm) - 1);
gss_krb5_crypto.c: skcipher_request_set_crypt(desc->req, desc->infrags, desc->outfrags,
gss_krb5_crypto.c: ret = crypto_skcipher_encrypt(desc->req);
gss_krb5_crypto.c:gss_encrypt_xdr_buf(struct crypto_sync_skcipher *tfm, struct xdr_buf *buf,
gss_krb5_crypto.c: BUG_ON((buf->len - offset) % crypto_sync_skcipher_blocksize(tfm) != 0);
gss_krb5_crypto.c: skcipher_request_set_sync_tfm(req, tfm);
gss_krb5_crypto.c: skcipher_request_set_callback(req, 0, NULL, NULL);
gss_krb5_crypto.c: skcipher_request_zero(req);
gss_krb5_crypto.c: struct skcipher_request *req;
gss_krb5_crypto.c: struct crypto_sync_skcipher *tfm =
gss_krb5_crypto.c: crypto_sync_skcipher_reqtfm(desc->req);
gss_krb5_crypto.c: fraglen = thislen & (crypto_sync_skcipher_blocksize(tfm) - 1);
gss_krb5_crypto.c: skcipher_request_set_crypt(desc->req, desc->frags, desc->frags,
gss_krb5_crypto.c: ret = crypto_skcipher_decrypt(desc->req);
gss_krb5_crypto.c:gss_decrypt_xdr_buf(struct crypto_sync_skcipher *tfm, struct xdr_buf *buf,
gss_krb5_crypto.c: BUG_ON((buf->len - offset) % crypto_sync_skcipher_blocksize(tfm) != 0);
gss_krb5_crypto.c: skcipher_request_set_sync_tfm(req, tfm);
gss_krb5_crypto.c: skcipher_request_set_callback(req, 0, NULL, NULL);
gss_krb5_crypto.c: skcipher_request_zero(req);
gss_krb5_crypto.c:gss_krb5_cts_crypt(struct crypto_sync_skcipher *cipher, struct xdr_buf *buf,
gss_krb5_crypto.c: skcipher_request_set_sync_tfm(req, cipher);
gss_krb5_crypto.c: skcipher_request_set_callback(req, 0, NULL, NULL);
gss_krb5_crypto.c: skcipher_request_set_crypt(req, sg, sg, len, iv);
gss_krb5_crypto.c: ret = crypto_skcipher_encrypt(req);
gss_krb5_crypto.c: ret = crypto_skcipher_decrypt(req);
gss_krb5_crypto.c: skcipher_request_zero(req);
gss_krb5_crypto.c: struct crypto_sync_skcipher *cipher, *aux_cipher;
gss_krb5_crypto.c: blocksize = crypto_sync_skcipher_blocksize(cipher);
gss_krb5_crypto.c: skcipher_request_set_sync_tfm(req, aux_cipher);
gss_krb5_crypto.c: skcipher_request_set_callback(req, 0, NULL, NULL);
gss_krb5_crypto.c: skcipher_request_zero(req);
gss_krb5_crypto.c: struct crypto_sync_skcipher *cipher, *aux_cipher;
gss_krb5_crypto.c: blocksize = crypto_sync_skcipher_blocksize(cipher);
gss_krb5_crypto.c: skcipher_request_set_sync_tfm(req, aux_cipher);
gss_krb5_crypto.c: skcipher_request_set_callback(req, 0, NULL, NULL);
gss_krb5_crypto.c: skcipher_request_zero(req);
gss_krb5_keys.c:#include <crypto/skcipher.h>
gss_krb5_keys.c: struct crypto_sync_skcipher *cipher;
gss_krb5_keys.c: cipher = crypto_alloc_sync_skcipher(gk5e->encrypt_name, 0, 0);
gss_krb5_keys.c: if (crypto_sync_skcipher_setkey(cipher, inkey->data, inkey->len))
gss_krb5_keys.c: crypto_free_sync_skcipher(cipher);
gss_krb5_mech.c:#include <crypto/skcipher.h>
gss_krb5_mech.c: struct krb5_ctx *ctx, struct crypto_sync_skcipher **res)
gss_krb5_mech.c: *res = crypto_alloc_sync_skcipher(ctx->gk5e->encrypt_name, 0, 0);
gss_krb5_mech.c: if (crypto_sync_skcipher_setkey(*res, key.data, key.len)) {
gss_krb5_mech.c: crypto_free_sync_skcipher(*res);
gss_krb5_mech.c: crypto_free_sync_skcipher(ctx->seq);
gss_krb5_mech.c: crypto_free_sync_skcipher(ctx->enc);
gss_krb5_mech.c:static struct crypto_sync_skcipher *
gss_krb5_mech.c: struct crypto_sync_skcipher *cp;
gss_krb5_mech.c: cp = crypto_alloc_sync_skcipher(cname, 0, 0);
gss_krb5_mech.c: if (crypto_sync_skcipher_setkey(cp, key, ctx->gk5e->keylength)) {
gss_krb5_mech.c: crypto_free_sync_skcipher(cp);
gss_krb5_mech.c: crypto_free_sync_skcipher(ctx->enc);
gss_krb5_mech.c: crypto_free_sync_skcipher(ctx->seq);
gss_krb5_mech.c: crypto_free_sync_skcipher(ctx->initiator_enc_aux);
gss_krb5_mech.c: crypto_free_sync_skcipher(ctx->acceptor_enc);
gss_krb5_mech.c: crypto_free_sync_skcipher(ctx->initiator_enc);
gss_krb5_mech.c: crypto_free_sync_skcipher(kctx->seq);
gss_krb5_mech.c: crypto_free_sync_skcipher(kctx->enc);
gss_krb5_mech.c: crypto_free_sync_skcipher(kctx->acceptor_enc);
gss_krb5_mech.c: crypto_free_sync_skcipher(kctx->initiator_enc);
gss_krb5_mech.c: crypto_free_sync_skcipher(kctx->acceptor_enc_aux);
gss_krb5_mech.c: crypto_free_sync_skcipher(kctx->initiator_enc_aux);
gss_krb5_seqnum.c:#include <crypto/skcipher.h>
gss_krb5_seqnum.c: struct crypto_sync_skcipher *key,
gss_krb5_seqnum.c: struct crypto_sync_skcipher *key = kctx->seq;
gss_krb5_wrap.c:#include <crypto/skcipher.h>
gss_krb5_wrap.c: blocksize = crypto_sync_skcipher_blocksize(kctx->enc);
gss_krb5_wrap.c: blocksize = crypto_sync_skcipher_blocksize(kctx->enc);
David
