rename WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS to WOLFSSL_USE_SAVE_VECTOR_REGISTERS, and wherever appropriate, replace defined(WOLFSSL_LINUXKM) with defined(WOLFSSL_USE_SAVE_VECTOR_REGISTERS).
rename WC_WANT_FLAG_DONT_USE_AESNI to WC_WANT_FLAG_DONT_USE_VECTOR_OPS.
rename lkm_printf() to wc_km_printf().
replace WOLFSSL_LINUXKM gates on kernel-incompatible includes with header-specific gates NO_STRING_H, NO_STDINT_H, NO_LIMITS_H, NO_CTYPE_H, NO_STDLIB_H
remove low level threading setup section of wolfssl/internal.h, which duplicated existing logic in wc_port.h, except for off-topic WOLFSSL_APACHE_MYNEWT TLS-layer setup, which is preserved, and a defined(__NT__) clause, which is now merged into the existing section in wc_port.h.
* add wc_linuxkm_check_for_intr_signals(), wc_linuxkm_relax_long_loop(),
WC_CHECK_FOR_INTR_SIGNALS(), WC_RELAX_LONG_LOOP(), SAVE_NO_VECTOR_REGISTERS(),
RESTORE_NO_VECTOR_REGISTERS(), and new error code INTERRUPTED_E ("Process
interrupted");
* update the no-asm remaps in the PK implementations to use
SAVE_NO_VECTOR_REGISTERS() and RESTORE_NO_VECTOR_REGISTERS(), so that inner
loops in them are always covered by the new logic.
Fixes to get WOLFSSL_PUBLIC_MP testing passing.
Fix DH constant time agreement:
- implement constant time encoding to big-endian byte array in TFM
- only force x to be zero for SP math as others implementations ensure
unused words are zero
- exponentiate in constant time to the smallest number of words
possible
- no need to encode into separate buffer anymore as encoding is
constant time and front padded
- make requested_sz be the maximum size for the parameters and check
against agreeSz
- update agreeSz to be the maximum valid size instead of filling all
the buffer which may be many times too big
- fix SP result to front pad when doing constant time
update wolfcrypt/src/port/af_alg, wolfcrypt/src/port/devcrypto, and wolfcrypt/src/port/kcapi to include libwolfssl_sources.h;
remove a slew of includes across lib sources made redundant by libwolfssl_sources.h.
which force on BUILDING_WOLFSSL and do boilerplate includes, and update library
sources to include them at the top.
wolfssl_sources.h includes types.h, error-crypt.h, and logging.h, and
conditionally, config.h. settings.h and wc_port.h are unconditionally
included at the top of types.h.
wolfssl_sources_asm.h includes settings.h, and conditionally, config.h.
Add wolfssl_sources*.h to wolfcrypt/src/include.am, and to several IDE/ project
files.
Also added a TEST_WOLFSSL_SOURCES_INCLUSION_SEQUENCE clause in
wolfssl/wolfcrypt/settings.h to allow coverage testing.
In wolfcrypt/src/misc.c, retain existing ad hoc boilerplate includes, and use
them if WOLFSSL_VIS_FOR_TESTS, otherwise include the new wolfssl_sources.h.
Define WOLFSSL_VIS_FOR_TESTS at top of wolfcrypt/test/test.c.
Also renamed WOLFSSL_NEED_LINUX_CURRENT to WOLFSSL_LINUXKM_NEED_LINUX_CURRENT,
for clarity.
several fixes for defects reported by cppcheck:
wolfcrypt/src/ecc.c: fix for cppcheck oppositeInnerCondition from cppcheck-2.16.0 in _ecc_make_key_ex(), and fixes for related unhandled errors discovered by manual inspection;
wolfcrypt/test/test.c: fix XREALLOC call in memcb_test() to resolve cppcheck-detected memleak.
wolfcrypt/test/test.c: in dh_ffdhe_test(), when defined(HAVE_PUBLIC_FFDHE), use wc_DhSetKey_ex() rather than wc_DhSetKey() to exercise the primality check in _DhSetKey().
wolfcrypt/src/dh.c: in wc_DhGenerateParams(), use named constant for buf size, and only XFREE it if !WOLFSSL_NO_MALLOC;
wolfcrypt/src/ecc.c and wolfssl/wolfcrypt/ecc.h: in wc_ecc_new_point_ex(), remove !WOLFSSL_NO_MALLOC gate around XMALLOC(), and if XMALLOC()ed, set ecc_point.isAllocated, then in wc_ecc_del_point_ex, XFREE() iff ecc_point.isAllocated;
wolfcrypt/src/pkcs7.c: in wc_PKCS7_RsaVerify(), when WOLFSSL_NO_MALLOC, jumbo-size the digest buffer to cope with in-place dynamics in RsaUnPad();
wolfcrypt/test/test.c: add !WOLFSSL_NO_MALLOC gates around various XFREE()s of objects that are on the stack in WOLFSSL_NO_MALLOC builds;
wolfssl/wolfcrypt/types.h: add an unconditional include of memory.h (itself guarded against multiple inclusion) to assure availability of WC_DEBUG_CIPHER_LIFECYCLE prototypes/macros.
wolfcrypt/src//asn.c: add stack buffer codepaths in ParseKeyUsageStr(), SetKeyIdFromPublicKey(), and EncodePolicyOID;
wolfcrypt/src/dh.c: add stack buffer codepath in wc_DhGenerateParams();
wolfcrypt/src/ecc.c: add always-fail codepath to find_hole() to preempt heap allocation attempts;
wolfcrypt/test/test.c: gate out several heap-dependent subtests when defined(WOLFSSL_NO_MALLOC), and add a stack buffer codepath in ed448_test();
wolfssl/wolfcrypt/types.h: harmonize macro definitions of XFREE() to use do { ... } while (0) wrappers to assure syntactic indivisibility.
wolfssl/wolfcrypt/wc_port.h: add WOLFSSL_API attribute to wolfSSL_Atomic_Int_Init, wolfSSL_Atomic_Int_FetchAdd, and wolfSSL_Atomic_Int_FetchAdd, and add fallback definitions for them, allowing elimination of SINGLE_THREADED implementations of wolfSSL_Ref*(), and allowing ungated use of wolfSSL_Atomic_* calls in api.c.
wolfcrypt/src/dh.c: in wc_DhAgree_ct(), remove frivolous XMEMSET() and stray semicolon.
wolfcrypt/benchmark/benchmark.c: fix bench_rsaKeyGen() to skip tests of key sizes below RSA_MIN_SIZE, and add 4096 bit benchmark if RSA_MAX_SIZE is big enough.
tests/unit.h:
* adopt definitions of TEST_FAIL, TEST_SUCCESS, and TEST_SKIPPED from unit.c, remap TEST_SKIPPED from -7777 to 3, and add TEST_SUCCESS_NO_MSGS, TEST_SKIPPED_NO_MSGS, EXPECT_DECLS_NO_MSGS(), and EXPECT_FAILURE_CODEPOINT_ID, to support existing and future expected-particular-failure test cases without log noise.
* rename outer gate from CyaSSL_UNIT_H to TESTS_UNIT_H.
tests/api.c:
* use EXPECT_DECLS_NO_MSGS() in test_ssl_memio_setup(), test_ssl_memio_read_write(), and test_wolfSSL_client_server_nofail_memio(), and globally update affected expected error codes to correspond.
* use atomics for {client,server}SessRemCount{Malloc,free} to fix races in SessRemCtxCb() and SessRemSslSetupCb().
* adds wc_DhAgree_ct().
* adds wolfSSL_DH_compute_key_padded(), using wc_DhAgree_ct() if available, with fallback fixup code.
* adds unit test coverage in api.c:test_wolfSSL_DH() for expected-success calls to wolfSSL_DH_compute_key() and wolfSSL_DH_compute_key_padded().
* fix TLS layer to consistently use WOLFSSL_FATAL_ERROR for error retvals, rather than literal -1.
* add WC_NO_ERR_TRACE() wrapper around LENGTH_ONLY_E (it does not signify an error condition).
* refactor errcode handling for traceability in wolfSSL_DSA_do_sign(), wolfSSL_DH_size(), wolfSSL_EC_KEY_get_conv_form(), wolfSSL_d2i_DSA_SIG(), wolfSSL_DSA_do_sign(), SetDhInternal(), and wolfSSL_EC_KEY_get_conv_form().
wolfcrypt/src/dh.c: in GeneratePrivateDh186(), add explicit suppression of uninitvar for "cBuf" arg that isn't fully initialized.
wolfcrypt/test/test.c: in mp_test_param(), explicitly initialize "buffer" to avoid uninitvar warning.
configure.ac: in FIPS builds, don't include enable_cryptocb in --enable-all or --enable-all-crypto. (they can still be enabled explicitly in FIPS builds with --enable-cryptocb, but the combination is not currently supported.)
* add support for DEBUG_LINUXKM_FORTIFY_OVERLAY to allow KASAN analysis of the overlay without actually enabling CONFIG_FORTIFY_SOURCE (which is buggy in combination with KASAN).
* make SAVE_VECTOR_REGISTERS2 definition conditional on !defined(SAVE_VECTOR_REGISTERS2).
wolfssl/wolfcrypt/memory.h: fix the DEBUG_VECTOR_REGISTER_ACCESS definition for SAVE_VECTOR_REGISTERS to properly omit the on-success bookkeeping code even if the supplied fail_clause doesn't return.
wolfcrypt/src/rsa.c: in wc_MakeRsaKey() primality loop, invoke RESTORE_VECTOR_REGISTERS() SAVE_VECTOR_REGISTERS() to prevent lengthy kernel lockups.
wolfcrypt/src/dh.c: in wc_DhGenerateParams() primality loop, invoke RESTORE_VECTOR_REGISTERS() SAVE_VECTOR_REGISTERS() to prevent lengthy kernel lockups.
wolfcrypt/src/{curve25519.c,dh.c,dsa.c,ecc.c,eccsi.c,rsa.c,sakke.c,sp_int.c}: when WOLFSSL_LINUXKM, force {SAVE,RESTORE}_VECTOR_REGISTERS() to WC_DO_NOTHING if settings gate out applicable asm.
tweak several #includes of settings.h to include types.h instead (all of these are for clarity, as types.h is indirectly included by later #includes), and add #include <wolfssl/wolfcrypt/types.h> where missing;
remove trailing semicolons from PRAGMA*() macro invocations as they are unneeded and can be harmful (inducing frivolous -Wdeclaration-after-statement etc.).
Changed EXPECT_DECL to start of as TEST_SKIPPED.
Modified other EXPECT macros appropriately.
Change test functions to not use 'res' when EXPECT_DECL is used.
memory.c:
wc_MemFailCount_Init(): don't declare variable after a statement
conf.c:
wolfSSL_TXT_DB_read(): free the whole WOLFSSL_TXT_DB on failure
instead of just the memory
wolfSSL_CONF_add_string(): pop the value added into section->value
(sk) if it can't be pushed onto conf->data
wolfSSL_NCONF_load(): free the new value if it wasn't able to be added
ocsp.c:
wolfSSL_OCSP_cert_to_id():
free the decoded certificate if parsing failed (is freed after use
otherwise)
free the certificate id on failure and make it NULL and continue
freeing other variables
pk.c:
wolfSSL_RSA_set0_crt_params(): set dmp1, dmq1 and iqmp fields to NULL
if setting the internal failed - returns error and caller needs to free
the passed in BNs
wolfSSL_RSA_set0_factors(): set p and q fields to NULL if setting the
internal failed - returns error and caller needs to free the passed in
BNs
wolfSSL_RSA_set0_key(): set n, e abd d fields to NULL if setting the
internal failed - returns error and caller needs to free the passed in
BNs
x509.c:
wolfSSL_X509_set_serialNumber(): explicit NULL
checkwolfSSL_X509_REQ_add1_attr_by_NID(): check whether push succeeded
and on failure free attribute
asn.c:
ConfirmSignature(): for DSA, allocate separately to ensure no leak on
memory allocation failure.
dh.c:
wc_DhGenerateParams(): ensure tmp and tmp2 are able to be cleared on
error
evp.c:
wolfSSL_EVP_PKEY_CTX_add1_hkdf_info(): fix realloc use to no leak on
failure
wolfSSL_EVP_CIPHER_CTX_iv_length(): handle ctx being NULL.
Fix checking of negative with unsigned variables.
Check digestSz for 0 in wc_SSH_KDF() so that no possibility of dividing
by zero.
Change XMEMCPY to XMEMSET in renesas_sce_util.c.
Fix test.c to free prvTmp and pubTmp on read error.
Remove unused variables.
XFREE checks for NULL so don't check before call.
Move variable declarations to reduce scope.
Fix for GeneratePublicDh was not right in #6002.
sp_DhExp_* are called from multiple functions.
Sometimes outLen contains a value and sometimes not.
Check public key output size in GeneratePublicDh before calling SP.
Don't ForceZero the output buffer before free.
ForceZero it when encryption fails.
ShrinkInputBuffer needs to zeroize input buffer even if not currently
encrypting as it may be using the buffer on wolfSSL object reuse.
Fix SP to zeroize the whole buffer.
Fix DH to check cBuf when WOLFSSL_CHECK_MEM_ZERO defined.
Add a define WOLFSSL_CHECK_MEM_ZERO to turn on code that checks that
memory that must be zeroized before going out of use is zero.
Everytime sensitive data is put into a allocated buffer or stack buffer;
the address, its length and a name is stored to be checked later.
Where the stack buffer is about to go out of use, a call is added to
check that the required parts are zero.
wc_MemZero_Add() adds an address with length and name to a table of
addressed to be checked later.
wc_MemZero_Check() checks that the memory associated with the address is
zeroized where required.
mp_memzero_add() adds mp_int's data pointer with length and name to
table.
mp_memzero_check() checks that the data pointer is zeroized where
required.
Freeing memory will check the address. The length was prepended on
allocation.
Realloction was changed for WOLFSSL_CHECK_MEM_ZERO to perform an
allocate, check, copy, free.
