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-rw-r--r--crypto/crypto_user_stat.c176
1 files changed, 0 insertions, 176 deletions
diff --git a/crypto/crypto_user_stat.c b/crypto/crypto_user_stat.c
deleted file mode 100644
index d4f3d39b5137..000000000000
--- a/crypto/crypto_user_stat.c
+++ /dev/null
@@ -1,176 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Crypto user configuration API.
- *
- * Copyright (C) 2017-2018 Corentin Labbe <clabbe@baylibre.com>
- *
- */
-
-#include <crypto/algapi.h>
-#include <crypto/internal/cryptouser.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <net/netlink.h>
-#include <net/sock.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_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));
-
- 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));
-
- return nla_put(skb, CRYPTOCFGA_STAT_COMPRESS, sizeof(rcomp), &rcomp);
-}
-
-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;
- }
-
- if (alg->cra_type && alg->cra_type->report_stat) {
- if (alg->cra_type->report_stat(skb, alg))
- goto nla_put_failure;
- goto out;
- }
-
- switch (alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL)) {
- 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;
- 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");