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80 lines
3.5 KiB
80 lines
3.5 KiB
6 months ago
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From 48a11405b9025c3bcb2927913c40a8b4d8a7b2c3 Mon Sep 17 00:00:00 2001
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From: Dan Streetman <ddstreet@ieee.org>
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Date: Mon, 21 Aug 2023 18:40:13 -0400
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Subject: [PATCH] tpm2: use table for openssl<->tpm2 ecc curve id mappings
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(cherry picked from commit 6761e1355edae6aa133f49325c8a03100694ba81)
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Related: RHEL-16182
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---
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src/shared/tpm2-util.c | 46 ++++++++++++++++++++++++------------------
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1 file changed, 26 insertions(+), 20 deletions(-)
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diff --git a/src/shared/tpm2-util.c b/src/shared/tpm2-util.c
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index f91ef02a4e..8a53c0ae59 100644
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--- a/src/shared/tpm2-util.c
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+++ b/src/shared/tpm2-util.c
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@@ -3446,36 +3446,42 @@ static int tpm2_build_sealing_policy(
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}
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#if HAVE_OPENSSL
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-static int tpm2_ecc_curve_from_openssl_curve_id(int curve_id, TPM2_ECC_CURVE *ret) {
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+static const struct {
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+ TPM2_ECC_CURVE tpm2_ecc_curve_id;
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+ int openssl_ecc_curve_id;
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+} tpm2_openssl_ecc_curve_table[] = {
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+ { TPM2_ECC_NIST_P192, NID_X9_62_prime192v1, },
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+ { TPM2_ECC_NIST_P224, NID_secp224r1, },
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+ { TPM2_ECC_NIST_P256, NID_X9_62_prime256v1, },
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+ { TPM2_ECC_NIST_P384, NID_secp384r1, },
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+ { TPM2_ECC_NIST_P521, NID_secp521r1, },
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+ { TPM2_ECC_SM2_P256, NID_sm2, },
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+};
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+
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+static int tpm2_ecc_curve_from_openssl_curve_id(int openssl_ecc_curve_id, TPM2_ECC_CURVE *ret) {
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assert(ret);
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- switch (curve_id) {
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- case NID_X9_62_prime192v1: *ret = TPM2_ECC_NIST_P192; return 0;
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- case NID_secp224r1: *ret = TPM2_ECC_NIST_P192; return 0;
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- case NID_X9_62_prime256v1: *ret = TPM2_ECC_NIST_P256; return 0;
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- case NID_secp384r1: *ret = TPM2_ECC_NIST_P384; return 0;
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- case NID_secp521r1: *ret = TPM2_ECC_NIST_P521; return 0;
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- case NID_sm2: *ret = TPM2_ECC_SM2_P256; return 0;
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- }
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+ FOREACH_ARRAY(t, tpm2_openssl_ecc_curve_table, ELEMENTSOF(tpm2_openssl_ecc_curve_table))
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+ if (t->openssl_ecc_curve_id == openssl_ecc_curve_id) {
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+ *ret = t->tpm2_ecc_curve_id;
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+ return 0;
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+ }
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return log_debug_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
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- "Openssl ECC curve id %d not supported.", curve_id);
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+ "Openssl ECC curve id %d not supported.", openssl_ecc_curve_id);
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}
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-static int tpm2_ecc_curve_to_openssl_curve_id(TPM2_ECC_CURVE curve, int *ret) {
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+static int tpm2_ecc_curve_to_openssl_curve_id(TPM2_ECC_CURVE tpm2_ecc_curve_id, int *ret) {
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assert(ret);
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- switch (curve) {
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- case TPM2_ECC_NIST_P192: *ret = NID_X9_62_prime192v1; return 0;
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- case TPM2_ECC_NIST_P224: *ret = NID_secp224r1; return 0;
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- case TPM2_ECC_NIST_P256: *ret = NID_X9_62_prime256v1; return 0;
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- case TPM2_ECC_NIST_P384: *ret = NID_secp384r1; return 0;
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- case TPM2_ECC_NIST_P521: *ret = NID_secp521r1; return 0;
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- case TPM2_ECC_SM2_P256: *ret = NID_sm2; return 0;
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- }
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+ FOREACH_ARRAY(t, tpm2_openssl_ecc_curve_table, ELEMENTSOF(tpm2_openssl_ecc_curve_table))
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+ if (t->tpm2_ecc_curve_id == tpm2_ecc_curve_id) {
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+ *ret = t->openssl_ecc_curve_id;
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+ return 0;
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+ }
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return log_debug_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
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- "TPM2 ECC curve %u not supported.", curve);
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+ "TPM2 ECC curve %u not supported.", tpm2_ecc_curve_id);
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}
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#define TPM2_RSA_DEFAULT_EXPONENT UINT32_C(0x10001)
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