Added tests to cover ssl_load.c functions.
Fixes from testing.
pk.c: renamed wolfssl_dh_load_key to wolfssl_dh_load_params as it
doesn't handle keys - just parameters.
* refactor WOLFSSL_BIO.num and WOLFSSL_BIO.ptr as unions, for clarity and bug resistance (no functional changes).
* in wolfSSL_BIO_free(), add WOLFSSL_BIO_DGRAM to the test for closing bio->num.fd, fixing a descriptor leak.
* use SOCKET_INVALID consistently as the invalid value for WOLFSSL_BIO.num.fd, and use SOCKET_T consistently as the internal type for file descriptors.
* move the definitions for SOCKET_T and SOCKET_INVALID from wolfio.h to the filesystem section of wc_port.h, and allow override definitions of SOCKET_T.
detected and tested with wolfssl-multi-test.sh ... pq-hybrid-all-rpk-valgrind-unittest. also tested with wolfssl-multi-test.sh ... super-quick-check.
* ecc.c: in wc_ecc_free(), fix gating around handling for key->sign_k to resolve memory leak, and in wc_ecc_gen_deterministic_k(), fix -Wconversion.
* test.c: add missing mp_free()s to ecdsa_test_deterministic_k_rs() and ecc521_test_deterministic_k().
* wc_HashType: change several occurrences of int to enum wc_HashType, including ecc_key.hashType and API wc_ecc_set_deterministic_ex(), to resolve C++ warnings.
* fixes for various C++ warnings/errors in crypto and TLS layers and test and benchmark code -- implicit casts, negative initializers for unsigned type, jumped initializers, and missing enums in switch()es.
* tweak typography;
* move wolfSSL_i2d_X509_PUBKEY() from ssl.c to x509.c;
* in asn.h, add !NO_ASN_OLD_TYPE_NAMES macros to remap old names (ISSUER, SUBJECT, BEFORE, AFTER) by default unless the macros are already defined.
refactor housekeeping for bio->bytes_read and bio->bytes_write, and add WOLFSSL_BIO_HAVE_FLOW_STATS gate;
add WOLFSSL_BIO_FLAG_RETRY housekeeping for WOLFSSL_BIO_SOCKET and WOLFSSL_BIO_DGRAM;
refactor WOLFSSL_BIO.peer_addr to be inline rather than a pointer;
add wolfSSL_set_mtu_compat() and wolfSSL_CTX_load_verify_locations_compat() implementations;
enable WOLFSSL_HAVE_BIO_ADDR and WOLFSSL_DTLS_MTU when OPENSSL_ALL.
This will allow the user to pass in a context pointer. Allows them to avoid
global variables.
We also add unknown extensions callback when processing a CA in cert manager
as CA certs can have unknown extensions as well.
Fixes ZD 18252
pk.c:
EncryptDerKey - setting wrong ret value on allocation failure.
wolfssl_rsa_generate_key_native - now checks e is a valid long
before passing in.
Fix formatting.
ssl_load.c:
ProcessBufferPrivPkcs8Dec - now checking password is not NULL
before zeroizing. Allocation may fail and ForceZero doesn't check for
NULL.
Fix formatting.
tests/api.c:
test_RsaSigFailure_cm - Check cert_sz is greater than zero
before use.
send_new_session_ticket - assert that building the message
doesn't return error or 0.
test_ticket_nonce_malloc - fix setting of medium and big to use
preprocessor. Fix big to be medium + 20.
asn.c:
GetLength_ex - Fix type of bytes so that it can go negative.
sp_int.h:
sp_clamp - add one to ii while it is a signed.
Fix formatting.
