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library: extend mbedtls_ssl_iana_tls_group_info_t structure

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Add new field that tells if the corresponding group is supported or not
in the current build.

Test function "test_mbedtls_ssl_get_supported_group_list" is extended
to verify this new feature.

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
This commit is contained in:
Valerio Setti
2026-01-27 23:37:50 +01:00
parent 9b49d5dbde
commit 476a2edea7
2 changed files with 109 additions and 23 deletions
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119
include/mbedtls/ssl.h
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@@ -3661,18 +3661,93 @@ void mbedtls_ssl_conf_psk_cb(mbedtls_ssl_config *conf,
#endif /* MBEDTLS_SSL_HANDSHAKE_WITH_PSK_ENABLED */
/**
* This structure defines the correpondence between IANA's TLS-ID and its
* corresponding group name.
* This is used in macro #MBEDTLS_SSL_IANA_TLS_GROUPS_INFO to define the list
* of known TLS IDs and corresponding group names.
* This structure defines each entry of the macro #MBEDTLS_SSL_IANA_TLS_GROUPS_INFO.
*
* Future versions of the library might add new fields to this structure.
* \note Future versions of the library might add new fields to this structure.
*/
typedef struct {
/** TLS-ID */
uint16_t tls_id;
/** Group name */
const char *group_name;
/** 1 if the group is supported; 0 otherwise */
uint8_t is_supported;
} mbedtls_ssl_iana_tls_group_info_t;
/* Helpers to check which PSA_WANT_xxx symbols are defined for groups. */
#if defined(PSA_WANT_ECC_MONTGOMERY_255)
#define MBEDTLS_SSL_HAVE_GROUP_X25519 1
#else
#define MBEDTLS_SSL_HAVE_GROUP_X25519 0
#endif
#if defined(PSA_WANT_ECC_SECP_R1_256)
#define MBEDTLS_SSL_HAVE_GROUP_SECP256R1 1
#else
#define MBEDTLS_SSL_HAVE_GROUP_SECP256R1 0
#endif
#if defined(PSA_WANT_ECC_SECP_K1_256)
#define MBEDTLS_SSL_HAVE_GROUP_SECP256K1 1
#else
#define MBEDTLS_SSL_HAVE_GROUP_SECP256K1 0
#endif
#if defined(PSA_WANT_ECC_SECP_R1_384)
#define MBEDTLS_SSL_HAVE_GROUP_SECP384R1 1
#else
#define MBEDTLS_SSL_HAVE_GROUP_SECP384R1 0
#endif
#if defined(PSA_WANT_ECC_MONTGOMERY_448)
#define MBEDTLS_SSL_HAVE_GROUP_X448 1
#else
#define MBEDTLS_SSL_HAVE_GROUP_X448 0
#endif
#if defined(PSA_WANT_ECC_SECP_R1_521)
#define MBEDTLS_SSL_HAVE_GROUP_SECP521R1 1
#else
#define MBEDTLS_SSL_HAVE_GROUP_SECP521R1 0
#endif
#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256)
#define MBEDTLS_SSL_HAVE_GROUP_BP256R1 1
#else
#define MBEDTLS_SSL_HAVE_GROUP_BP256R1 0
#endif
#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384)
#define MBEDTLS_SSL_HAVE_GROUP_BP384R1 1
#else
#define MBEDTLS_SSL_HAVE_GROUP_BP384R1 0
#endif
#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_512)
#define MBEDTLS_SSL_HAVE_GROUP_BP512R1 1
#else
#define MBEDTLS_SSL_HAVE_GROUP_BP512R1 0
#endif
#if defined(PSA_WANT_DH_RFC7919_2048)
#define MBEDTLS_SSL_HAVE_GROUP_FFDHE2048 1
#else
#define MBEDTLS_SSL_HAVE_GROUP_FFDHE2048 0
#endif
#if defined(PSA_WANT_DH_RFC7919_3072)
#define MBEDTLS_SSL_HAVE_GROUP_FFDHE3072 1
#else
#define MBEDTLS_SSL_HAVE_GROUP_FFDHE3072 0
#endif
#if defined(PSA_WANT_DH_RFC7919_4096)
#define MBEDTLS_SSL_HAVE_GROUP_FFDHE4096 1
#else
#define MBEDTLS_SSL_HAVE_GROUP_FFDHE4096 0
#endif
#if defined(PSA_WANT_DH_RFC7919_6144)
#define MBEDTLS_SSL_HAVE_GROUP_FFDHE6144 1
#else
#define MBEDTLS_SSL_HAVE_GROUP_FFDHE6144 0
#endif
#if defined(PSA_WANT_DH_RFC7919_8192)
#define MBEDTLS_SSL_HAVE_GROUP_FFDHE8192 1
#else
#define MBEDTLS_SSL_HAVE_GROUP_FFDHE8192 0
#endif
/**
* Initializer for a list of known TLS 1.2 named elliptic curves and
* TLS 1.3 groups, with their names.
@@ -3680,23 +3755,23 @@ typedef struct {
* Each entry is a structure of type #mbedtls_ssl_iana_tls_group_info_t.
* The last entry has `tls_id = 0` and `group_name = NULL`.
*/
#define MBEDTLS_SSL_IANA_TLS_GROUPS_INFO \
{ \
{ MBEDTLS_SSL_IANA_TLS_GROUP_X25519, "x25519" }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_SECP256R1, "secp256r1" }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_SECP256K1, "secp256k1" }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_SECP384R1, "secp384r1" }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_X448, "x448" }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_SECP521R1, "secp521r1" }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_BP256R1, "brainpoolP256r1" }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_BP384R1, "brainpoolP384r1" }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_BP512R1, "brainpoolP512r1" }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE2048, "ffdhe2048" }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE3072, "ffdhe3072" }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE4096, "ffdhe4096" }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE6144, "ffdhe6144" }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE8192, "ffdhe8192" }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_NONE, NULL } \
#define MBEDTLS_SSL_IANA_TLS_GROUPS_INFO \
{ \
{ MBEDTLS_SSL_IANA_TLS_GROUP_X25519, "x25519", MBEDTLS_SSL_HAVE_GROUP_X25519 }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_SECP256R1, "secp256r1", MBEDTLS_SSL_HAVE_GROUP_SECP256R1 }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_SECP256K1, "secp256k1", MBEDTLS_SSL_HAVE_GROUP_SECP256K1 }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_SECP384R1, "secp384r1", MBEDTLS_SSL_HAVE_GROUP_SECP384R1 }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_X448, "x448", MBEDTLS_SSL_HAVE_GROUP_X448 }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_SECP521R1, "secp521r1", MBEDTLS_SSL_HAVE_GROUP_SECP521R1 }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_BP256R1, "brainpoolP256r1", MBEDTLS_SSL_HAVE_GROUP_BP256R1 }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_BP384R1, "brainpoolP384r1", MBEDTLS_SSL_HAVE_GROUP_BP384R1 }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_BP512R1, "brainpoolP512r1", MBEDTLS_SSL_HAVE_GROUP_BP512R1 }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE2048, "ffdhe2048", MBEDTLS_SSL_HAVE_GROUP_FFDHE2048 }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE3072, "ffdhe3072", MBEDTLS_SSL_HAVE_GROUP_FFDHE3072 }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE4096, "ffdhe4096", MBEDTLS_SSL_HAVE_GROUP_FFDHE4096 }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE6144, "ffdhe6144", MBEDTLS_SSL_HAVE_GROUP_FFDHE6144 }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE8192, "ffdhe8192", MBEDTLS_SSL_HAVE_GROUP_FFDHE8192 }, \
{ MBEDTLS_SSL_IANA_TLS_GROUP_NONE, NULL, 1 } \
}
#if defined(MBEDTLS_DEBUG_C)