mirror of
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b8969a1b69
Checking the config via ifdef incorrectly compiles out the report
functions when CRYPTO_USER is set to =m. Fix it by using IS_ENABLED()
instead.
Fixes: c0f9e01dd2
("crypto: api - Check CRYPTO_USER instead of NET for report")
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
246 lines
6.1 KiB
C
246 lines
6.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Asynchronous Compression operations
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*
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* Copyright (c) 2016, Intel Corporation
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* Authors: Weigang Li <weigang.li@intel.com>
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* Giovanni Cabiddu <giovanni.cabiddu@intel.com>
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*/
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#include <crypto/internal/acompress.h>
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#include <linux/cryptouser.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/seq_file.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <net/netlink.h>
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#include "compress.h"
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struct crypto_scomp;
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static const struct crypto_type crypto_acomp_type;
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static inline struct acomp_alg *__crypto_acomp_alg(struct crypto_alg *alg)
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{
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return container_of(alg, struct acomp_alg, calg.base);
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}
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static inline struct acomp_alg *crypto_acomp_alg(struct crypto_acomp *tfm)
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{
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return __crypto_acomp_alg(crypto_acomp_tfm(tfm)->__crt_alg);
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}
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static int __maybe_unused crypto_acomp_report(
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struct sk_buff *skb, struct crypto_alg *alg)
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{
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struct crypto_report_acomp racomp;
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memset(&racomp, 0, sizeof(racomp));
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strscpy(racomp.type, "acomp", sizeof(racomp.type));
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return nla_put(skb, CRYPTOCFGA_REPORT_ACOMP, sizeof(racomp), &racomp);
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}
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static void crypto_acomp_show(struct seq_file *m, struct crypto_alg *alg)
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__maybe_unused;
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static void crypto_acomp_show(struct seq_file *m, struct crypto_alg *alg)
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{
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seq_puts(m, "type : acomp\n");
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}
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static void crypto_acomp_exit_tfm(struct crypto_tfm *tfm)
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{
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struct crypto_acomp *acomp = __crypto_acomp_tfm(tfm);
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struct acomp_alg *alg = crypto_acomp_alg(acomp);
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alg->exit(acomp);
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}
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static int crypto_acomp_init_tfm(struct crypto_tfm *tfm)
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{
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struct crypto_acomp *acomp = __crypto_acomp_tfm(tfm);
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struct acomp_alg *alg = crypto_acomp_alg(acomp);
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if (tfm->__crt_alg->cra_type != &crypto_acomp_type)
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return crypto_init_scomp_ops_async(tfm);
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acomp->compress = alg->compress;
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acomp->decompress = alg->decompress;
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acomp->dst_free = alg->dst_free;
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acomp->reqsize = alg->reqsize;
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if (alg->exit)
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acomp->base.exit = crypto_acomp_exit_tfm;
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if (alg->init)
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return alg->init(acomp);
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return 0;
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}
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static unsigned int crypto_acomp_extsize(struct crypto_alg *alg)
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{
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int extsize = crypto_alg_extsize(alg);
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if (alg->cra_type != &crypto_acomp_type)
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extsize += sizeof(struct crypto_scomp *);
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return extsize;
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}
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static inline int __crypto_acomp_report_stat(struct sk_buff *skb,
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struct crypto_alg *alg)
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{
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struct comp_alg_common *calg = __crypto_comp_alg_common(alg);
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struct crypto_istat_compress *istat = comp_get_stat(calg);
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struct crypto_stat_compress racomp;
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memset(&racomp, 0, sizeof(racomp));
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strscpy(racomp.type, "acomp", sizeof(racomp.type));
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racomp.stat_compress_cnt = atomic64_read(&istat->compress_cnt);
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racomp.stat_compress_tlen = atomic64_read(&istat->compress_tlen);
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racomp.stat_decompress_cnt = atomic64_read(&istat->decompress_cnt);
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racomp.stat_decompress_tlen = atomic64_read(&istat->decompress_tlen);
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racomp.stat_err_cnt = atomic64_read(&istat->err_cnt);
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return nla_put(skb, CRYPTOCFGA_STAT_ACOMP, sizeof(racomp), &racomp);
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}
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#ifdef CONFIG_CRYPTO_STATS
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int crypto_acomp_report_stat(struct sk_buff *skb, struct crypto_alg *alg)
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{
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return __crypto_acomp_report_stat(skb, alg);
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}
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#endif
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static const struct crypto_type crypto_acomp_type = {
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.extsize = crypto_acomp_extsize,
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.init_tfm = crypto_acomp_init_tfm,
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#ifdef CONFIG_PROC_FS
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.show = crypto_acomp_show,
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#endif
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#if IS_ENABLED(CONFIG_CRYPTO_USER)
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.report = crypto_acomp_report,
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#endif
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#ifdef CONFIG_CRYPTO_STATS
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.report_stat = crypto_acomp_report_stat,
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#endif
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.maskclear = ~CRYPTO_ALG_TYPE_MASK,
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.maskset = CRYPTO_ALG_TYPE_ACOMPRESS_MASK,
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.type = CRYPTO_ALG_TYPE_ACOMPRESS,
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.tfmsize = offsetof(struct crypto_acomp, base),
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};
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struct crypto_acomp *crypto_alloc_acomp(const char *alg_name, u32 type,
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u32 mask)
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{
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return crypto_alloc_tfm(alg_name, &crypto_acomp_type, type, mask);
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}
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EXPORT_SYMBOL_GPL(crypto_alloc_acomp);
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struct crypto_acomp *crypto_alloc_acomp_node(const char *alg_name, u32 type,
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u32 mask, int node)
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{
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return crypto_alloc_tfm_node(alg_name, &crypto_acomp_type, type, mask,
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node);
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}
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EXPORT_SYMBOL_GPL(crypto_alloc_acomp_node);
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struct acomp_req *acomp_request_alloc(struct crypto_acomp *acomp)
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{
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struct crypto_tfm *tfm = crypto_acomp_tfm(acomp);
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struct acomp_req *req;
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req = __acomp_request_alloc(acomp);
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if (req && (tfm->__crt_alg->cra_type != &crypto_acomp_type))
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return crypto_acomp_scomp_alloc_ctx(req);
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return req;
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}
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EXPORT_SYMBOL_GPL(acomp_request_alloc);
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void acomp_request_free(struct acomp_req *req)
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{
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struct crypto_acomp *acomp = crypto_acomp_reqtfm(req);
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struct crypto_tfm *tfm = crypto_acomp_tfm(acomp);
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if (tfm->__crt_alg->cra_type != &crypto_acomp_type)
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crypto_acomp_scomp_free_ctx(req);
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if (req->flags & CRYPTO_ACOMP_ALLOC_OUTPUT) {
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acomp->dst_free(req->dst);
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req->dst = NULL;
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}
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__acomp_request_free(req);
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}
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EXPORT_SYMBOL_GPL(acomp_request_free);
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void comp_prepare_alg(struct comp_alg_common *alg)
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{
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struct crypto_istat_compress *istat = comp_get_stat(alg);
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struct crypto_alg *base = &alg->base;
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base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
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if (IS_ENABLED(CONFIG_CRYPTO_STATS))
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memset(istat, 0, sizeof(*istat));
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}
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int crypto_register_acomp(struct acomp_alg *alg)
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{
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struct crypto_alg *base = &alg->calg.base;
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comp_prepare_alg(&alg->calg);
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base->cra_type = &crypto_acomp_type;
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base->cra_flags |= CRYPTO_ALG_TYPE_ACOMPRESS;
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return crypto_register_alg(base);
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}
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EXPORT_SYMBOL_GPL(crypto_register_acomp);
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void crypto_unregister_acomp(struct acomp_alg *alg)
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{
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crypto_unregister_alg(&alg->base);
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}
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EXPORT_SYMBOL_GPL(crypto_unregister_acomp);
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int crypto_register_acomps(struct acomp_alg *algs, int count)
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{
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int i, ret;
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for (i = 0; i < count; i++) {
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ret = crypto_register_acomp(&algs[i]);
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if (ret)
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goto err;
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}
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return 0;
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err:
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for (--i; i >= 0; --i)
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crypto_unregister_acomp(&algs[i]);
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return ret;
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}
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EXPORT_SYMBOL_GPL(crypto_register_acomps);
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void crypto_unregister_acomps(struct acomp_alg *algs, int count)
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{
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int i;
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for (i = count - 1; i >= 0; --i)
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crypto_unregister_acomp(&algs[i]);
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}
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EXPORT_SYMBOL_GPL(crypto_unregister_acomps);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("Asynchronous compression type");
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