crypto: Add userspace report for ablkcipher type algorithms (29ffc876) · Commits · e / devices / android_kernel_fairphone_FP4

crypto/ablkcipher.c

+25 −0

Original line number	Original line	Diff line number	Diff line
	@@ -23,6 +23,8 @@
	#include <linux/sched.h>		#include <linux/sched.h>
	#include <linux/slab.h>		#include <linux/slab.h>
	#include <linux/seq_file.h>		#include <linux/seq_file.h>
			#include <linux/cryptouser.h>
			#include <net/netlink.h>

	#include <crypto/scatterwalk.h>		#include <crypto/scatterwalk.h>

	@@ -381,6 +383,28 @@ static int crypto_init_ablkcipher_ops(struct crypto_tfm *tfm, u32 type,
	return 0;		return 0;
	}		}

			static int crypto_ablkcipher_report(struct sk_buff skb, struct crypto_alg alg)
			{
			struct crypto_report_blkcipher rblkcipher;

			snprintf(rblkcipher.type, CRYPTO_MAX_ALG_NAME, "%s", "ablkcipher");
			snprintf(rblkcipher.geniv, CRYPTO_MAX_ALG_NAME, "%s",
			alg->cra_ablkcipher.geniv ?: "<default>");

			rblkcipher.blocksize = alg->cra_blocksize;
			rblkcipher.min_keysize = alg->cra_ablkcipher.min_keysize;
			rblkcipher.max_keysize = alg->cra_ablkcipher.max_keysize;
			rblkcipher.ivsize = alg->cra_ablkcipher.ivsize;

			NLA_PUT(skb, CRYPTOCFGA_REPORT_BLKCIPHER,
			sizeof(struct crypto_report_blkcipher), &rblkcipher);

			return 0;

			nla_put_failure:
			return -EMSGSIZE;
			}

	static void crypto_ablkcipher_show(struct seq_file m, struct crypto_alg alg)		static void crypto_ablkcipher_show(struct seq_file m, struct crypto_alg alg)
	__attribute__ ((unused));		__attribute__ ((unused));
	static void crypto_ablkcipher_show(struct seq_file m, struct crypto_alg alg)		static void crypto_ablkcipher_show(struct seq_file m, struct crypto_alg alg)
	@@ -403,6 +427,7 @@ const struct crypto_type crypto_ablkcipher_type = {
	#ifdef CONFIG_PROC_FS		#ifdef CONFIG_PROC_FS
	.show = crypto_ablkcipher_show,		.show = crypto_ablkcipher_show,
	#endif		#endif
			.report = crypto_ablkcipher_report,
	};		};
	EXPORT_SYMBOL_GPL(crypto_ablkcipher_type);		EXPORT_SYMBOL_GPL(crypto_ablkcipher_type);