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linuxkm: handle RHEL9 disabled akcipher sign/decrypt ops #9597

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linuxkm: handle RHEL9 disabled akcipher sign/decrypt ops #9597

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28 changes: 28 additions & 0 deletions linuxkm/lkcapi_rsa_glue.c
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,10 @@
#error lkcapi_rsa_glue.c included in non-LINUXKM_LKCAPI_REGISTER project.
#endif

#if defined(RHEL_RELEASE_CODE) && !defined(RHEL_RELEASE_VERSION)
#define RHEL_RELEASE_VERSION(a, b) (((a) << 8) + (b))
#endif

#if !defined(NO_RSA)
#if (defined(LINUXKM_LKCAPI_REGISTER_ALL) || \
(defined(LINUXKM_LKCAPI_REGISTER_ALL_KCONFIG) && defined(CONFIG_CRYPTO_RSA))) && \
Expand Down Expand Up @@ -2347,6 +2351,14 @@ static int linuxkm_test_rsa_driver(const char * driver, int nbits)

memset(dec, 0, key_len);
ret = crypto_akcipher_decrypt(req);
#if defined(RHEL_RELEASE_CODE) && \
(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(9, 6))
if (ret == -ENOSYS) {
pr_info("info: ignoring failure from crypto_akcipher_decrypt (disabled by RHEL policy)\n");
test_rc = 0;
goto test_rsa_end;
}
#endif
if (ret) {
pr_err("error: crypto_akcipher_decrypt returned: %d\n", ret);
goto test_rsa_end;
Expand Down Expand Up @@ -2721,6 +2733,14 @@ static int linuxkm_test_pkcs1pad_driver(const char * driver, int nbits,
akcipher_request_set_crypt(req, &src, &dst, hash_len, key_len);

ret = crypto_akcipher_sign(req);
#if defined(RHEL_RELEASE_CODE) && \
(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(9, 6))
if (ret == -ENOSYS) {
pr_info("info: ignoring failure from crypto_akcipher_sign (disabled by RHEL policy)\n");
test_rc = 0;
goto test_pkcs1_end;
}
#endif
if (ret) {
pr_err("error: crypto_akcipher_sign returned: %d\n", ret);
test_rc = BAD_FUNC_ARG;
Expand Down Expand Up @@ -2847,6 +2867,14 @@ static int linuxkm_test_pkcs1pad_driver(const char * driver, int nbits,
}

ret = crypto_akcipher_decrypt(req);
#if defined(RHEL_RELEASE_CODE) && \
(RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(9, 6))
if (ret == -ENOSYS) {
pr_info("info: ignoring failure from crypto_akcipher_decrypt (disabled by RHEL policy)\n");
test_rc = 0;
goto test_pkcs1_end;
}
#endif
if (ret) {
pr_err("error: crypto_akcipher_decrypt returned: %d\n", ret);
test_rc = BAD_FUNC_ARG;
Expand Down
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