crypto_rfc4309_ctx
struct crypto_rfc4309_ctx *ctx = crypto_aead_ctx(parent);
struct crypto_rfc4309_ctx *ctx = crypto_aead_ctx(parent);
struct crypto_rfc4309_ctx *ctx = crypto_aead_ctx(aead);
struct crypto_rfc4309_ctx *ctx = crypto_aead_ctx(tfm);
struct crypto_rfc4309_ctx *ctx = crypto_aead_ctx(tfm);
inst->alg.base.cra_ctxsize = sizeof(struct crypto_rfc4309_ctx);