linuxkm/Makefile, linuxkm/linuxkm-fips-hash-wrapper.sh, linuxkm/linuxkm_memory.c: refactor coreKey extraction to use ELF tools rather than WOLFCRYPT_FIPS_CORE_DYNAMIC_HASH_VALUE and user_settings.h.
linuxkm/module_hooks.c: add stack measurement for wc_RunAllCast_fips().
tests/api/test_slhdsa.c: frivolous initialization to work around a false positive -Wmaybe-uninitialized in slhdsa_der_roundtrip_one().
wolfcrypt/src/wc_slhdsa.c, wolfssl/wolfcrypt/wc_slhdsa.h:
* refactor lifecycle management for SHA-2 objects to fix a leak via wc_SlhDsaKey_CheckKey().
* add support for WC_SLHDSA_NO_ASM.
* add WOLFSSL_SLHDSA_VERIFY_ONLY gates around prototypes, to get compile-time failures for misuse.
wolfcrypt/test/test.c:
* clean up myFipsCb() and restore usability of TEST_ALWAYS_RUN_TO_END with bad FIPS hash (useful test coverage).
* add wc_RunAllCast_fips() to wolfcrypt_test().
* when WOLFSSL_KERNEL_MODE or BENCH_EMBEDDED, force on WOLFSSL_SLHDSA_VERIFY_ONLY unless WOLFSSL_SLHDSA_FORCE_FULL_TESTS is defined.
wolfssl/wolfcrypt/settings.h:
* add WC_MLKEM_NO_ASM to WOLFSSL_LINUXKM section to work around asm bug.
* remove clause in WOLFSSL_KERNEL_MODE section that forced on WOLFSSL_SLHDSA_VERIFY_ONLY.
linuxkm/Makefile: update the GENERATE_RELOC_TAB recipe to generate both wc_linuxkm_pie_text_reloc_tab[] and wc_linuxkm_pie_rodata_reloc_tab.
linuxkm/linuxkm-fips-hash-wrapper.sh: add handling for wc_linuxkm_pie_rodata_reloc_tab.
linuxkm/linuxkm-fips-hash.c: add handling for rodata_reloc_tab.*.
linuxkm/linuxkm_memory.c:
* refactor find_reloc_tab_offset() to be segment-agnostic and tolerate empty reloc tabs.
* refactor wc_reloc_normalize_segment():
* to be segment-agnostic,
* identify the src segment dynamically,
* return BAD_FUNC_ARG where previously returning literal -1,
* use seg_in_out_len arg to accommodate size skew between input and output (not currently used), and
* rename working vars for better mnemonicitude.
* update wc_fips_generate_hash() to
* handle seg_map->rodata_reloc_tab,
* use new calling convention for wc_reloc_normalize_segment(), and
* add wc_reloc_normalize_segment() loop for .rodata_wolfcrypt.
linuxkm/linuxkm_memory.h and linuxkm/linuxkm_wc_port.h: rename WOLFSSL_TEXT_SEGMENT_CANONICALIZER* to WOLFSSL_SEGMENT_CANONICALIZER*, with backward-compat provisions.
linuxkm/module_hooks.c:
* add wc_linuxkm_normalize_relocations_noresize() backward-compat wrapper.
* wolfssl_init(): add .rodata_wolfcrypt relocation handling alongside existing .text_wolfcrypt handling, and update for new wc_reloc_normalize_segment() calling convention.
* add seg_map.rodata_reloc_tab initialization.
* update wc_linuxkm_normalize_relocations() to be segment-agnostic and use new wc_reloc_normalize_segment() calling convention.
linuxkm/Makefile:
* don't use `readarray -d` -- it's a recent bashism;
* rework libwolfssl-user-build/src/.libs/libwolfssl.so recipe to better isolate sub-build settings.
* add support for HOSTCC and HOSTCFLAGS in libwolfssl.so build.
* deploy $(QFLAG) --no-print-directory --no-silent in several submakes for neatness and resilience.
* tweak $(LIBWOLFSSL_NAME).ko.signed recipe to add a "skipping" message and some consistency checking.
linuxkm/README.md: update FIPS DRBG /proc/crypto content to show seed source.
linuxkm/linuxkm_memory.c: fixes for format character portability in a RELOC_DEBUG_PRINTF() in wc_reloc_normalize_text).
linuxkm/linuxkm_wc_port.h: pull in linux/moduleparam.h, and if WC_LINUXKM_SUPPORT_DUMP_TO_FILE, pull in linux/fs.h and linux/uaccess.h.
linuxkm/module_hooks.c: implement WC_LINUXKM_SUPPORT_DUMP_TO_FILE: dump_to_file() and module args text_dump_path=... and rodata_dump_path=...
linuxkm/patches/7.0/WOLFSSL_LINUXKM_HAVE_GET_RANDOM_CALLBACKS-7v0.patch: add to accommodate patch-breaking change in Linux 7dff99b354.
configure.ac: add --enable-kernel-verbose-debug and --enable-kernel-stack-debug;
linuxkm/Makefile:
* add QFLAG and VFLAG setup, and pass their values appropriately;
* add missing `@set -e` and `-Wall -Wextra` to the linuxkm-fips-hash recipe;
* use +$(MAKE), not @$(MAKE), for proper dry run recursion.
linuxkm/README.md: update to reflect new goodies, and generally revise+extend remarks.
linuxkm/linuxkm-fips-hash-wrapper.sh: add copyright header; pass through extra caller arguments to ./linuxkm-fips-hash.
linuxkm/linuxkm-fips-hash.c:
* add copyright header;
* fix code around user_coreKey;
* add explicit wolfCrypt_Cleanup() and cleanup of mod_fd and mod_map at end;
* remove unused reloc_tab_len
* fix a couple -Wsign-compares;
* add missing fprintf arguments
* properly set ret = -1 in a couple failure paths.
linuxkm/linuxkm_wc_port.h: set WOLFSSL_LINUXKM_VERBOSE_DEBUG when WOLFSSL_KERNEL_VERBOSE_DEBUG, and recognize WOLFSSL_KERNEL_STACK_DEBUG as a synonym for WC_LINUXKM_STACK_DEBUG.
linuxkm/linuxkm_memory.c and linuxkm/linuxkm_memory.h: add brief explanatory comments.
Add:
* linuxkm/linuxkm-fips-hash.c
* linuxkm/linuxkm-fips-hash-wrapper.sh
* linuxkm/linuxkm_memory.h
Move from linuxkm/module_hooks.c to linuxkm/linuxkm_memory.c:
* reloc_layouts[]
* find_reloc_tab_offset()
* the body of wc_linuxkm_normalize_relocations() as wc_reloc_normalize_text()
* most of updateFipsHash() as wc_fips_generate_hash()
Move from linuxkm/linuxkm_wc_port.h to linuxkm/linuxkm_memory.h:
* struct wc_linuxkm_pie_reloc_tab_ent
* enum wc_reloc_dest_segment
* enum wc_reloc_type
linuxkm/Makefile:
* Update GENERATE_RELOC_TAB recipe to populate new fields in struct wc_reloc_table_ent.
* Add targets:
* libwolfssl-user-build/src/.libs/libwolfssl.so
* linuxkm-fips-hash
* module-with-matching-fips-hash
* module-with-matching-fips-hash-no-sign
* Add support for alternate target module name, via LIBWOLFSSL_NAME make variable.
linuxkm/linuxkm_wc_port.h and linuxkm/module_hooks.c:
* Fixes to make linuxkm-pie work with CONFIG_KASAN.
* Implement WC_LINUXKM_STACK_DEBUG:
* wc_linuxkm_stack_bottom()
* wc_linuxkm_stack_top()
* wc_linuxkm_stack_current()
* wc_linuxkm_stack_left()
* wc_linuxkm_stack_hwm_prepare()
* wc_linuxkm_stack_hwm_measure_rel()
* wc_linuxkm_stack_hwm_measure_total()
wolfssl/wolfcrypt/settings.h:
* When WOLFSSL_KERNEL_MODE, make sure WOLFSSL_GENERAL_ALIGNMENT is at least SIZEOF_LONG.
* When WOLFCRYPT_FIPS_CORE_DYNAMIC_HASH_VALUE, make sure WOLFSSL_BASE16 is defined.
configure.ac and wolfcrypt/benchmark/benchmark.c: Disable scrypt when KERNEL_MODE_DEFAULTS, due to excessive memory requirements.
* change wc_linuxkm_pie_reloc_tab from unsigned int[] to struct wc_linuxkm_pie_reloc_tab_ent[], with dest_segment and reloc_type members;
* add enum wc_reloc_dest_segment and enum wc_reloc_type;
* update GENERATE_RELOC_TAB recipe in Makefile to render the dest segment and reloc type;
* add struct reloc_layout_ent, and reloc_layouts[] fully populated for x86 and ARM relocations;
* refactor find_reloc_tab_offset() and wc_linuxkm_normalize_relocations() to reflect the above;
linuxkm/module_hooks.c: tweak various printf format characters and arguments for compatibility with ARM32;
linuxkm/linuxkm_wc_port.h: include linux/inet.h and define wc_linuxkm_inet_pton() and XINET_PTON(), unless WOLFCRYPT_ONLY.
tweaks for ARM32: recognize R_ARM_* relocations, and add -fno-unwind-tables to PIE_FLAGS.
linuxkm/linuxkm_wc_port.h:
* __PIE__: don't declare static pmd_to_page() unless USE_SPLIT_PMD_PTLOCKS.
* add wc_lkm_refcount_to_int() helper with -Wnested-externs suppressed.
wolfcrypt/src/fe_operations.c: in fe_frombytes() and fe_sq2(), use explicit XMEMSET()s to initialize working vars, rather than implicit, to avoid implicit (unshimmable) memset() calls.
wolfcrypt/src/ge_operations.c: fix gate on _wc_curve25519_dummy() to require CURVED25519_ASM.
globally rename+unify:
* HAVE_LINUXKM_PIE_SUPPORT and USE_WOLFSSL_LINUXKM_PIE_REDIRECT_TABLE under gate WC_PIE_RELOC_TABLES
* WC_LKM_INDIRECT_SYM_BY_FUNC_ONLY as WC_PIE_INDIRECT_SYM_BY_FUNC_ONLY
* WC_LKM_INDIRECT_SYM_BY_DIRECT_TABLE_READ as WC_PIE_INDIRECT_SYM_BY_DIRECT_TABLE_READ
* WC_LKM_INDIRECT_SYM() as WC_PIE_INDIRECT_SYM;
linuxkm/linuxkm_wc_port.h:
* implement pointer-caching inline wolfssl_linuxkm_get_pie_redirect_table_local() for the WC_PIE_INDIRECT_SYM_BY_FUNC_ONLY path;
* for FIPS_VERSION3_GE(6,0,0), add wolfCrypt_FIPS_*_ro_sanity pointers to struct wolfssl_linuxkm_pie_redirect_table, and corresponding ad hoc prototypes;
linuxkm/Makefile and linuxkm/module_hooks.c: move wc_linuxkm_pie_reloc_tab into the wolfCrypt PIE container;
linuxkm/module_hooks.c and linuxkm/linuxkm_wc_port.h: harmonize the types of __wc_{text,rodata}_{start,end} with wolfCrypt_FIPS_{first,last,ro_start,ro_end} to allow drop-in use of the all-inclusive ELF fenceposts, activated by WC_USE_PIE_FENCEPOSTS_FOR_FIPS.
define WOLFSSL_API_PREFIX_MAP in WOLFSSL_LINUXKM setup in settings.h;
fix gates on WOLFSSL_HAVE_PRF and WOLFSSL_NO_CT_OPS setup in settings.h;
linuxkm/: add support for FIPS_OPTEST.
* refactor .PHONY Kbuild target rename-pie-text-and-data-sections into macro RENAME_PIE_TEXT_AND_DATA_SECTIONS, and execute it conditional on module_exports.c regeneration;
* use .ONESHELL in the wrapper Makefile too, and rework the changes in bf5536d6b8 such that the recursive make is always executed, but will leave the target untouched if it was already up-to-date relative to its dependencies.
these tweaks fix the module build to restore automatic rebuild when dependencies are updated.
* add module-update-fips-hash rule, for in-place FIPS hash update without rebuild;
* improve PIE sequence in module build rule to double-check stability of the relocation table after final rebuild;
Makefile.am: add a module-update-fips-hash passthrough target.
linuxkm/Makefile, linuxkm/include.am, linuxkm/module_hooks.c: remove linuxkm/pie_first.c, linuxkm/pie_last.c, and references to them (replaced by fenceposts in linuxkm/wolfcrypt.lds).
linuxkm/Makefile: in recipe (awk script) for wc_linuxkm_pie_reloc_tab.c, report and error on unexpected relocation types;
linuxkm/module_hooks.c: in wc_linuxkm_normalize_relocations():
* fix bounds checking on the input,
* recognize references pointing at the first byte after the end of the segment,
* and mask out pad bytes when rendering the 32 bit addresses;
linuxkm/wolfcrypt.lds: add 4k alignment directives just before the segment end fenceposts, to make the fenceposts more inclusive.
wolfssl/wolfcrypt/settings.h: in WOLFSSL_LINUXKM section, #ifdef LINUXKM_LKCAPI_REGISTER, #define WOLFSSL_TEST_SUBROUTINE to nothing, and #define WC_TEST_EXPORT_SUBTESTS.
linuxkm/lkcapi_glue.c:
* add check_skcipher_driver_masking() and check_aead_driver_masking(),
* use _masking() checks in all linuxkm_test_*().
* add !WOLFSSL_AESGCM_STREAM implementation of linuxkm_test_aesgcm().
* add implementations of linuxkm_test_aesctr(), linuxkm_test_aesofb(), and linuxkm_test_aesecb()
* remove incomplete+disabled AES-CCM shim implementation.
linuxkm/module_hooks.c: pull in wolfcrypt/test/test.h if LINUXKM_LKCAPI_REGISTER.
linuxkm/Makefile: build wolfcrypt/test/test.o if ENABLED_LINUXKM_LKCAPI_REGISTER.
Makefile.am: add ENABLED_LINUXKM_LKCAPI_REGISTER to exports in BUILD_LINUXKM section.
configure.ac: add AC_SUBST([ENABLED_LINUXKM_LKCAPI_REGISTER]); in ENABLED_LINUXKM_DEFAULTS set up, remove `-DWOLFSSL_TEST_SUBROUTINE=static` from AM_CFLAGS adds; fix whitespace.
.wolfssl_known_macro_extras: add WC_WANT_FLAG_DONT_USE_AESNI.
wolfcrypt/test/test.c: add `|| defined(WC_TEST_EXPORT_SUBTESTS)` to outermost gate, add wc_test_ prefix to render_error_message() and export it,
wolfcrypt/test/test.h: add prototype for wc_test_render_error_message(), and #ifdef WC_TEST_EXPORT_SUBTESTS, add prototypes for all the subtests.
also, additional backward-compatibility measures around cp and clean recipe in linuxkm/Makefile.
also, in sp_int.c, tweak DECL_DYN_SP_INT_ARRAY() to use an explicit XMEMSET() to clear n[], to avoid unshimmable implicit memset() from gcc on aarch64.
* fix overallocation in WC_DECLARE_ARRAY() macro in the !WOLFSSL_SMALL_STACK path.
* rename WC_INIT_ARRAY() to WC_ALLOC_ARRAY() for clarity (it doesn't initialize any memory).
* rename WC_DECLARE_ARRAY_DYNAMIC_DEC(), WC_DECLARE_ARRAY_DYNAMIC_EXE(), and WC_FREE_ARRAY_DYNAMIC() to WC_DECLARE_HEAP_ARRAY(), WC_ALLOC_HEAP_ARRAY(), and WC_FREE_HEAP_ARRAY(), respectively, also for clarity, and refactor out the duplicate definitions.
* add WC_ALLOC_VAR(), and move the XMALLOC() in smallstack WC_DECLARE_VAR() into it. smallstack WC_DECLARE_VAR() now initializes the pointer to NULL, like smallstack WC_DECLARE_ARRAY(), assuring all pointers are valid upon shortcircuit to cleanup for a failed allocation (see WC_ALLOC_DO_ON_FAILURE below).
* add a new hook "WC_ALLOC_DO_ON_FAILURE" in WC_ALLOC_VAR(), WC_ALLOC_ARRAY(), and WC_DECLARE_ARRAY_DYNAMIC_EXE(), which is invoked when an allocation fails. by default the hook is defined to WC_DO_NOTHING.
* add basic safety to WC_*_HEAP_ARRAY() by recording/detecting allocation state via idx##VAR_NAME.
* add macros WC_ARRAY_OK() and WC_HEAP_ARRAY_OK() to test if allocation succeeded.
* add macros WC_CALLOC_ARRAY() and WC_CALLOC_HEAP_ARRAY() which zero the objects.
* add macro WC_CALLOC_VAR() which zeros the object.
ED448: smallstack refactor of ge448_scalarmult_base().
src/tls.c tests/api.c wolfcrypt/test/test.c: update WC_DECLARE_VAR()s with now-required matching WC_ALLOC_VAR()s.
wolfcrypt/benchmark/benchmark.c:
* no functional changes in default error-free behavior.
* add definition of WC_ALLOC_DO_ON_FAILURE() that prints error message, sets ret, and does goto exit.
* add BENCH_NTIMES and BENCH_AGREETIMES overrideeable macros, to allow fast sanitizer runs and slow high-precision runs.
* smallstack refactor of all declarations of stack arrays of the form foo[BENCH_MAX_PENDING], using WC_DECLARE_ARRAY() (35 in all).
* additional smallstack refactors, using WC_DECLARE_VAR(), for bench_aesxts(), bench_ed448KeyGen(), bench_eccsi*(), and bench_sakke*().
* fixes for various unhandled error conditions around malloc failures.
wolfcrypt/test/test.c: opportunistically constify several (42) static constants, moving them to the readonly data segment.
linuxkm/Makefile: if ENABLED_LINUXKM_BENCHMARKS, add wolfcrypt/benchmark/benchmark.o to WOLFSSL_OBJ_FILES.
linuxkm/Kbuild: enable FPU for benchmark.o, and remove enablement for module_hooks.o.
linuxkm/module_hooks.c: remove inline include of benchmark.c.
refactor the HAVE_WC_INTROSPECTION mechanism to pass build params via $output_objdir/.build_params rather than abusing autotools config.h to pass them;
add support for EXTRA_CFLAGS on the make command line;
in FIPS builds, exclude pkcallbacks from --enable-all;
linuxkm: move test.o out of PIE container (uses function pointers as operands).
add build-time support for module signing using native Linux facility;
add support for alternative licenses using WOLFSSL_LICENSE macro;
improve load-time kernel log messages;
add support for sp-math-all asm/AVX2 acceleration;
add error-checking and return in SAVE_VECTOR_REGISTERS();
implement support for x86 accelerated crypto from interrupt handlers, gated on WOLFSSL_LINUXKM_SIMD_X86_IRQ_ALLOWED:
* wolfcrypt_irq_fpu_states
* am_in_hard_interrupt_handler()
* allocate_wolfcrypt_irq_fpu_states()
* free_wolfcrypt_irq_fpu_states()
* save_vector_registers_x86()
* restore_vector_registers_x86()
add WOLFSSL_LINUXKM_SIMD, WOLFSSL_LINUXKM_SIMD_X86, and WOLFSSL_LINUXKM_SIMD_ARM macros for more readable gating.
* Adds `--enable-linuxkm-pie` and associated infrastructure, to support FIPS mode in the Linux kernel module.
* Adds `tests/api.c` missing (void) arglist to `test_SSL_CIPHER_get_xxx()`.
Daniel Pouzzner
JacobBarthelmeh
jordan
Masashi Honma