From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- crypto/crypto_user_stat.c | 335 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 335 insertions(+) create mode 100644 crypto/crypto_user_stat.c (limited to 'crypto/crypto_user_stat.c') diff --git a/crypto/crypto_user_stat.c b/crypto/crypto_user_stat.c new file mode 100644 index 000000000..154884bf9 --- /dev/null +++ b/crypto/crypto_user_stat.c @@ -0,0 +1,335 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Crypto user configuration API. + * + * Copyright (C) 2017-2018 Corentin Labbe + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "internal.h" + +#define null_terminated(x) (strnlen(x, sizeof(x)) < sizeof(x)) + +struct crypto_dump_info { + struct sk_buff *in_skb; + struct sk_buff *out_skb; + u32 nlmsg_seq; + u16 nlmsg_flags; +}; + +static int crypto_report_aead(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_stat_aead raead; + + memset(&raead, 0, sizeof(raead)); + + strscpy(raead.type, "aead", sizeof(raead.type)); + + raead.stat_encrypt_cnt = atomic64_read(&alg->stats.aead.encrypt_cnt); + raead.stat_encrypt_tlen = atomic64_read(&alg->stats.aead.encrypt_tlen); + raead.stat_decrypt_cnt = atomic64_read(&alg->stats.aead.decrypt_cnt); + raead.stat_decrypt_tlen = atomic64_read(&alg->stats.aead.decrypt_tlen); + raead.stat_err_cnt = atomic64_read(&alg->stats.aead.err_cnt); + + return nla_put(skb, CRYPTOCFGA_STAT_AEAD, sizeof(raead), &raead); +} + +static int crypto_report_cipher(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_stat_cipher rcipher; + + memset(&rcipher, 0, sizeof(rcipher)); + + strscpy(rcipher.type, "cipher", sizeof(rcipher.type)); + + rcipher.stat_encrypt_cnt = atomic64_read(&alg->stats.cipher.encrypt_cnt); + rcipher.stat_encrypt_tlen = atomic64_read(&alg->stats.cipher.encrypt_tlen); + rcipher.stat_decrypt_cnt = atomic64_read(&alg->stats.cipher.decrypt_cnt); + rcipher.stat_decrypt_tlen = atomic64_read(&alg->stats.cipher.decrypt_tlen); + rcipher.stat_err_cnt = atomic64_read(&alg->stats.cipher.err_cnt); + + return nla_put(skb, CRYPTOCFGA_STAT_CIPHER, sizeof(rcipher), &rcipher); +} + +static int crypto_report_comp(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_stat_compress rcomp; + + memset(&rcomp, 0, sizeof(rcomp)); + + strscpy(rcomp.type, "compression", sizeof(rcomp.type)); + rcomp.stat_compress_cnt = atomic64_read(&alg->stats.compress.compress_cnt); + rcomp.stat_compress_tlen = atomic64_read(&alg->stats.compress.compress_tlen); + rcomp.stat_decompress_cnt = atomic64_read(&alg->stats.compress.decompress_cnt); + rcomp.stat_decompress_tlen = atomic64_read(&alg->stats.compress.decompress_tlen); + rcomp.stat_err_cnt = atomic64_read(&alg->stats.compress.err_cnt); + + return nla_put(skb, CRYPTOCFGA_STAT_COMPRESS, sizeof(rcomp), &rcomp); +} + +static int crypto_report_acomp(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_stat_compress racomp; + + memset(&racomp, 0, sizeof(racomp)); + + strscpy(racomp.type, "acomp", sizeof(racomp.type)); + racomp.stat_compress_cnt = atomic64_read(&alg->stats.compress.compress_cnt); + racomp.stat_compress_tlen = atomic64_read(&alg->stats.compress.compress_tlen); + racomp.stat_decompress_cnt = atomic64_read(&alg->stats.compress.decompress_cnt); + racomp.stat_decompress_tlen = atomic64_read(&alg->stats.compress.decompress_tlen); + racomp.stat_err_cnt = atomic64_read(&alg->stats.compress.err_cnt); + + return nla_put(skb, CRYPTOCFGA_STAT_ACOMP, sizeof(racomp), &racomp); +} + +static int crypto_report_akcipher(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_stat_akcipher rakcipher; + + memset(&rakcipher, 0, sizeof(rakcipher)); + + strscpy(rakcipher.type, "akcipher", sizeof(rakcipher.type)); + rakcipher.stat_encrypt_cnt = atomic64_read(&alg->stats.akcipher.encrypt_cnt); + rakcipher.stat_encrypt_tlen = atomic64_read(&alg->stats.akcipher.encrypt_tlen); + rakcipher.stat_decrypt_cnt = atomic64_read(&alg->stats.akcipher.decrypt_cnt); + rakcipher.stat_decrypt_tlen = atomic64_read(&alg->stats.akcipher.decrypt_tlen); + rakcipher.stat_sign_cnt = atomic64_read(&alg->stats.akcipher.sign_cnt); + rakcipher.stat_verify_cnt = atomic64_read(&alg->stats.akcipher.verify_cnt); + rakcipher.stat_err_cnt = atomic64_read(&alg->stats.akcipher.err_cnt); + + return nla_put(skb, CRYPTOCFGA_STAT_AKCIPHER, + sizeof(rakcipher), &rakcipher); +} + +static int crypto_report_kpp(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_stat_kpp rkpp; + + memset(&rkpp, 0, sizeof(rkpp)); + + strscpy(rkpp.type, "kpp", sizeof(rkpp.type)); + + rkpp.stat_setsecret_cnt = atomic64_read(&alg->stats.kpp.setsecret_cnt); + rkpp.stat_generate_public_key_cnt = atomic64_read(&alg->stats.kpp.generate_public_key_cnt); + rkpp.stat_compute_shared_secret_cnt = atomic64_read(&alg->stats.kpp.compute_shared_secret_cnt); + rkpp.stat_err_cnt = atomic64_read(&alg->stats.kpp.err_cnt); + + return nla_put(skb, CRYPTOCFGA_STAT_KPP, sizeof(rkpp), &rkpp); +} + +static int crypto_report_ahash(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_stat_hash rhash; + + memset(&rhash, 0, sizeof(rhash)); + + strscpy(rhash.type, "ahash", sizeof(rhash.type)); + + rhash.stat_hash_cnt = atomic64_read(&alg->stats.hash.hash_cnt); + rhash.stat_hash_tlen = atomic64_read(&alg->stats.hash.hash_tlen); + rhash.stat_err_cnt = atomic64_read(&alg->stats.hash.err_cnt); + + return nla_put(skb, CRYPTOCFGA_STAT_HASH, sizeof(rhash), &rhash); +} + +static int crypto_report_shash(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_stat_hash rhash; + + memset(&rhash, 0, sizeof(rhash)); + + strscpy(rhash.type, "shash", sizeof(rhash.type)); + + rhash.stat_hash_cnt = atomic64_read(&alg->stats.hash.hash_cnt); + rhash.stat_hash_tlen = atomic64_read(&alg->stats.hash.hash_tlen); + rhash.stat_err_cnt = atomic64_read(&alg->stats.hash.err_cnt); + + return nla_put(skb, CRYPTOCFGA_STAT_HASH, sizeof(rhash), &rhash); +} + +static int crypto_report_rng(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_stat_rng rrng; + + memset(&rrng, 0, sizeof(rrng)); + + strscpy(rrng.type, "rng", sizeof(rrng.type)); + + rrng.stat_generate_cnt = atomic64_read(&alg->stats.rng.generate_cnt); + rrng.stat_generate_tlen = atomic64_read(&alg->stats.rng.generate_tlen); + rrng.stat_seed_cnt = atomic64_read(&alg->stats.rng.seed_cnt); + rrng.stat_err_cnt = atomic64_read(&alg->stats.rng.err_cnt); + + return nla_put(skb, CRYPTOCFGA_STAT_RNG, sizeof(rrng), &rrng); +} + +static int crypto_reportstat_one(struct crypto_alg *alg, + struct crypto_user_alg *ualg, + struct sk_buff *skb) +{ + memset(ualg, 0, sizeof(*ualg)); + + strscpy(ualg->cru_name, alg->cra_name, sizeof(ualg->cru_name)); + strscpy(ualg->cru_driver_name, alg->cra_driver_name, + sizeof(ualg->cru_driver_name)); + strscpy(ualg->cru_module_name, module_name(alg->cra_module), + sizeof(ualg->cru_module_name)); + + ualg->cru_type = 0; + ualg->cru_mask = 0; + ualg->cru_flags = alg->cra_flags; + ualg->cru_refcnt = refcount_read(&alg->cra_refcnt); + + if (nla_put_u32(skb, CRYPTOCFGA_PRIORITY_VAL, alg->cra_priority)) + goto nla_put_failure; + if (alg->cra_flags & CRYPTO_ALG_LARVAL) { + struct crypto_stat_larval rl; + + memset(&rl, 0, sizeof(rl)); + strscpy(rl.type, "larval", sizeof(rl.type)); + if (nla_put(skb, CRYPTOCFGA_STAT_LARVAL, sizeof(rl), &rl)) + goto nla_put_failure; + goto out; + } + + switch (alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL)) { + case CRYPTO_ALG_TYPE_AEAD: + if (crypto_report_aead(skb, alg)) + goto nla_put_failure; + break; + case CRYPTO_ALG_TYPE_SKCIPHER: + if (crypto_report_cipher(skb, alg)) + goto nla_put_failure; + break; + case CRYPTO_ALG_TYPE_CIPHER: + if (crypto_report_cipher(skb, alg)) + goto nla_put_failure; + break; + case CRYPTO_ALG_TYPE_COMPRESS: + if (crypto_report_comp(skb, alg)) + goto nla_put_failure; + break; + case CRYPTO_ALG_TYPE_ACOMPRESS: + if (crypto_report_acomp(skb, alg)) + goto nla_put_failure; + break; + case CRYPTO_ALG_TYPE_SCOMPRESS: + if (crypto_report_acomp(skb, alg)) + goto nla_put_failure; + break; + case CRYPTO_ALG_TYPE_AKCIPHER: + if (crypto_report_akcipher(skb, alg)) + goto nla_put_failure; + break; + case CRYPTO_ALG_TYPE_KPP: + if (crypto_report_kpp(skb, alg)) + goto nla_put_failure; + break; + case CRYPTO_ALG_TYPE_AHASH: + if (crypto_report_ahash(skb, alg)) + goto nla_put_failure; + break; + case CRYPTO_ALG_TYPE_HASH: + if (crypto_report_shash(skb, alg)) + goto nla_put_failure; + break; + case CRYPTO_ALG_TYPE_RNG: + if (crypto_report_rng(skb, alg)) + goto nla_put_failure; + break; + default: + pr_err("ERROR: Unhandled alg %d in %s\n", + alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL), + __func__); + } + +out: + return 0; + +nla_put_failure: + return -EMSGSIZE; +} + +static int crypto_reportstat_alg(struct crypto_alg *alg, + struct crypto_dump_info *info) +{ + struct sk_buff *in_skb = info->in_skb; + struct sk_buff *skb = info->out_skb; + struct nlmsghdr *nlh; + struct crypto_user_alg *ualg; + int err = 0; + + nlh = nlmsg_put(skb, NETLINK_CB(in_skb).portid, info->nlmsg_seq, + CRYPTO_MSG_GETSTAT, sizeof(*ualg), info->nlmsg_flags); + if (!nlh) { + err = -EMSGSIZE; + goto out; + } + + ualg = nlmsg_data(nlh); + + err = crypto_reportstat_one(alg, ualg, skb); + if (err) { + nlmsg_cancel(skb, nlh); + goto out; + } + + nlmsg_end(skb, nlh); + +out: + return err; +} + +int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, + struct nlattr **attrs) +{ + struct net *net = sock_net(in_skb->sk); + struct crypto_user_alg *p = nlmsg_data(in_nlh); + struct crypto_alg *alg; + struct sk_buff *skb; + struct crypto_dump_info info; + int err; + + if (!null_terminated(p->cru_name) || !null_terminated(p->cru_driver_name)) + return -EINVAL; + + alg = crypto_alg_match(p, 0); + if (!alg) + return -ENOENT; + + err = -ENOMEM; + skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); + if (!skb) + goto drop_alg; + + info.in_skb = in_skb; + info.out_skb = skb; + info.nlmsg_seq = in_nlh->nlmsg_seq; + info.nlmsg_flags = 0; + + err = crypto_reportstat_alg(alg, &info); + +drop_alg: + crypto_mod_put(alg); + + if (err) { + kfree_skb(skb); + return err; + } + + return nlmsg_unicast(net->crypto_nlsk, skb, NETLINK_CB(in_skb).portid); +} + +MODULE_LICENSE("GPL"); -- cgit v1.2.3