708 lines
26 KiB
C
708 lines
26 KiB
C
/* linuxkm_wc_port.h
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*
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* Copyright (C) 2006-2023 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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/* included by wolfssl/wolfcrypt/wc_port.h */
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#ifndef LINUXKM_WC_PORT_H
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#define LINUXKM_WC_PORT_H
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#include <linux/version.h>
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 16, 0)
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#error Unsupported kernel.
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#endif
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#ifdef HAVE_CONFIG_H
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#ifndef PACKAGE_NAME
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#error wc_port.h included before config.h
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#endif
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/* config.h is autogenerated without gating, and is subject to repeat
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* inclusions, so gate it out here to keep autodetection masking
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* intact:
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*/
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#undef HAVE_CONFIG_H
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#endif
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/* suppress inclusion of stdint-gcc.h to avoid conflicts with Linux native
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* include/linux/types.h:
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*/
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#define _GCC_STDINT_H
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#define WC_PTR_TYPE uintptr_t
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/* needed to suppress inclusion of stdio.h in wolfssl/wolfcrypt/types.h */
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#define XSNPRINTF snprintf
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/* the rigmarole around kstrtoll() here is to accommodate its
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* warn-unused-result attribute.
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*
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* also needed to suppress inclusion of stdlib.h in
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* wolfssl/wolfcrypt/types.h.
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*/
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#define XATOI(s) ({ \
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long long _xatoi_res = 0; \
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int _xatoi_ret = kstrtoll(s, 10, &_xatoi_res); \
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if (_xatoi_ret != 0) { \
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_xatoi_res = 0; \
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} \
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(int)_xatoi_res; \
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})
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/* Kbuild+gcc on x86 doesn't consistently honor the default ALIGN16 on stack objects,
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* but gives adequate alignment with "32".
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*/
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#if defined(CONFIG_X86) && !defined(ALIGN16)
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#define ALIGN16 __attribute__ ( (aligned (32)))
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#endif
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/* kvmalloc()/kvfree() and friends added in linux commit a7c3e901 */
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
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#define HAVE_KVMALLOC
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#endif
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/* kernel printf doesn't implement fp. */
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#ifndef WOLFSSL_NO_FLOAT_FMT
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#define WOLFSSL_NO_FLOAT_FMT
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#endif
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#ifdef BUILDING_WOLFSSL
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#if defined(CONFIG_MIPS) && defined(HAVE_LINUXKM_PIE_SUPPORT)
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/* __ZBOOT__ disables some unhelpful macros around the mem*() funcs in
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* legacy arch/mips/include/asm/string.h
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*/
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#define __ZBOOT__
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#define memcmp __builtin_memcmp
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#define __ARCH_MEMCMP_NO_REDIRECT
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#define __ARCH_MEMCPY_NO_REDIRECT
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#define __builtin_memcpy memcpy
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extern void *memcpy(void *dest, const void *src, unsigned int n);
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#define __ARCH_MEMCPY_NO_REDIRECT
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#define __builtin_memset memset
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extern void *memset(void *dest, int c, unsigned int n);
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#endif
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_Pragma("GCC diagnostic push");
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/* we include all the needed kernel headers with these masked out. else
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* there are profuse warnings.
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*/
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_Pragma("GCC diagnostic ignored \"-Wunused-parameter\"");
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_Pragma("GCC diagnostic ignored \"-Wpointer-arith\"");
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_Pragma("GCC diagnostic ignored \"-Wshadow\"");
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_Pragma("GCC diagnostic ignored \"-Wnested-externs\"");
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_Pragma("GCC diagnostic ignored \"-Wredundant-decls\"");
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_Pragma("GCC diagnostic ignored \"-Wsign-compare\"");
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_Pragma("GCC diagnostic ignored \"-Wpointer-sign\"");
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_Pragma("GCC diagnostic ignored \"-Wbad-function-cast\"");
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_Pragma("GCC diagnostic ignored \"-Wdiscarded-qualifiers\"");
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_Pragma("GCC diagnostic ignored \"-Wtype-limits\"");
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_Pragma("GCC diagnostic ignored \"-Wswitch-enum\"");
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#include <linux/kconfig.h>
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#include <linux/kernel.h>
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#include <linux/ctype.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#ifdef __PIE__
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/* without this, mm.h brings in static, but not inline, pmd_to_page(),
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* with direct references to global vmem variables.
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*/
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#undef USE_SPLIT_PMD_PTLOCKS
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#define USE_SPLIT_PMD_PTLOCKS 0
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0)
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/* without this, static show_free_areas() mm.h brings in direct
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* reference to unexported __show_free_areas().
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*/
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#define __show_free_areas my__show_free_areas
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void my__show_free_areas(
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unsigned int flags,
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nodemask_t *nodemask,
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int max_zone_idx);
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#endif
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#endif
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#include <linux/mm.h>
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#ifndef SINGLE_THREADED
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#include <linux/kthread.h>
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#endif
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#include <linux/net.h>
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#include <linux/slab.h>
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#if defined(WOLFSSL_AESNI) || defined(USE_INTEL_SPEEDUP) || defined(WOLFSSL_SP_X86_64_ASM)
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#ifndef CONFIG_X86
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#error X86 SIMD extensions requested, but CONFIG_X86 is not set.
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#endif
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#define WOLFSSL_LINUXKM_SIMD
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#define WOLFSSL_LINUXKM_SIMD_X86
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#ifndef WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS
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#define WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS
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#endif
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#elif defined(WOLFSSL_ARMASM) || defined(WOLFSSL_SP_ARM32_ASM) || \
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defined(WOLFSSL_SP_ARM64_ASM) || defined(WOLFSSL_SP_ARM_THUMB_ASM) ||\
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defined(WOLFSSL_SP_ARM_CORTEX_M_ASM)
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#if !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
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#error ARM SIMD extensions requested, but CONFIG_ARM* is not set.
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#endif
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#define WOLFSSL_LINUXKM_SIMD
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#define WOLFSSL_LINUXKM_SIMD_ARM
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#ifndef WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS
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#define WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS
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#endif
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#else
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#ifndef WOLFSSL_NO_ASM
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#define WOLFSSL_NO_ASM
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#endif
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#endif
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/* benchmarks.c uses floating point math, so needs a working SAVE_VECTOR_REGISTERS(). */
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#if defined(WOLFSSL_LINUXKM_BENCHMARKS) && !defined(WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS)
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#define WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS
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#endif
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#if defined(WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS) && defined(CONFIG_X86)
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)
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#include <asm/i387.h>
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#else
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#include <asm/simd.h>
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#endif
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#ifndef SAVE_VECTOR_REGISTERS
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#define SAVE_VECTOR_REGISTERS(fail_clause) { int _svr_ret = save_vector_registers_x86(); if (_svr_ret != 0) { fail_clause } }
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#define SAVE_VECTOR_REGISTERS2() save_vector_registers_x86()
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#endif
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#ifndef RESTORE_VECTOR_REGISTERS
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#define RESTORE_VECTOR_REGISTERS() restore_vector_registers_x86()
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#endif
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#elif defined(WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS) && (defined(CONFIG_ARM) || defined(CONFIG_ARM64))
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#include <asm/fpsimd.h>
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#ifndef SAVE_VECTOR_REGISTERS
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#define SAVE_VECTOR_REGISTERS(fail_clause) { int _svr_ret = save_vector_registers_arm(); if (_svr_ret != 0) { fail_clause } }
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#define SAVE_VECTOR_REGISTERS2() save_vector_registers_arm()
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#endif
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#ifndef RESTORE_VECTOR_REGISTERS
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#define RESTORE_VECTOR_REGISTERS() restore_vector_registers_arm()
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#endif
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#elif defined(WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS)
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#error WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS is set for an unsupported architecture.
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#endif
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_Pragma("GCC diagnostic pop");
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/* avoid -Wpointer-arith, encountered when -DCONFIG_FORTIFY_SOURCE */
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#undef __is_constexpr
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#define __is_constexpr(x) __builtin_constant_p(x)
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/* the kernel uses -std=c89, but not -pedantic, and makes full use of anon
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* structs/unions, so we should too.
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*/
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#define HAVE_ANONYMOUS_INLINE_AGGREGATES 1
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#define NO_THREAD_LS
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#define NO_ATTRIBUTE_CONSTRUCTOR
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#ifdef HAVE_FIPS
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extern int wolfCrypt_FIPS_first(void);
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extern int wolfCrypt_FIPS_last(void);
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#endif
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#if !defined(WOLFCRYPT_ONLY) && !defined(NO_CERTS)
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/* work around backward dependency of asn.c on ssl.c. */
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struct Signer;
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struct Signer *GetCA(void *signers, unsigned char *hash);
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#ifndef NO_SKID
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struct Signer *GetCAByName(void* signers, unsigned char *hash);
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#endif
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#endif
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#if defined(__PIE__) && !defined(USE_WOLFSSL_LINUXKM_PIE_REDIRECT_TABLE)
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#error "compiling -fPIE requires PIE redirect table."
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#endif
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#if defined(HAVE_FIPS) && !defined(HAVE_LINUXKM_PIE_SUPPORT)
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#error "FIPS build requires PIE support."
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#endif
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#ifdef USE_WOLFSSL_LINUXKM_PIE_REDIRECT_TABLE
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#ifdef CONFIG_MIPS
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#undef __ARCH_MEMCMP_NO_REDIRECT
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#undef memcmp
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extern int memcmp(const void *s1, const void *s2, size_t n);
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#endif
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struct wolfssl_linuxkm_pie_redirect_table {
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#ifndef __ARCH_MEMCMP_NO_REDIRECT
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typeof(memcmp) *memcmp;
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#endif
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#ifndef __ARCH_MEMCPY_NO_REDIRECT
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typeof(memcpy) *memcpy;
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#endif
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#ifndef __ARCH_MEMSET_NO_REDIRECT
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typeof(memset) *memset;
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#endif
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#ifndef __ARCH_MEMMOVE_NO_REDIRECT
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typeof(memmove) *memmove;
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#endif
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#ifndef __ARCH_STRCMP_NO_REDIRECT
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typeof(strcmp) *strcmp;
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#endif
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#ifndef __ARCH_STRNCMP_NO_REDIRECT
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typeof(strncmp) *strncmp;
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#endif
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#ifndef __ARCH_STRCASECMP_NO_REDIRECT
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typeof(strcasecmp) *strcasecmp;
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#endif
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#ifndef __ARCH_STRNCASECMP_NO_REDIRECT
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typeof(strncasecmp) *strncasecmp;
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#endif
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#ifndef __ARCH_STRLEN_NO_REDIRECT
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typeof(strlen) *strlen;
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#endif
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#ifndef __ARCH_STRSTR_NO_REDIRECT
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typeof(strstr) *strstr;
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#endif
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#ifndef __ARCH_STRNCPY_NO_REDIRECT
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typeof(strncpy) *strncpy;
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#endif
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#ifndef __ARCH_STRNCAT_NO_REDIRECT
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typeof(strncat) *strncat;
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#endif
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typeof(kstrtoll) *kstrtoll;
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0)
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typeof(_printk) *_printk;
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#else
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typeof(printk) *printk;
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#endif
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typeof(snprintf) *snprintf;
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const unsigned char *_ctype;
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typeof(kmalloc) *kmalloc;
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typeof(kfree) *kfree;
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typeof(ksize) *ksize;
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typeof(krealloc) *krealloc;
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#ifdef HAVE_KVMALLOC
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typeof(kvmalloc_node) *kvmalloc_node;
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typeof(kvfree) *kvfree;
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#endif
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typeof(is_vmalloc_addr) *is_vmalloc_addr;
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0)
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typeof(kmalloc_trace) *kmalloc_trace;
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#else
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typeof(kmem_cache_alloc_trace) *kmem_cache_alloc_trace;
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typeof(kmalloc_order_trace) *kmalloc_order_trace;
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#endif
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typeof(get_random_bytes) *get_random_bytes;
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)
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typeof(getnstimeofday) *getnstimeofday;
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#elif LINUX_VERSION_CODE < KERNEL_VERSION(5, 0, 0)
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typeof(current_kernel_time64) *current_kernel_time64;
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#else
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typeof(ktime_get_coarse_real_ts64) *ktime_get_coarse_real_ts64;
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#endif
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struct task_struct *(*get_current)(void);
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int (*preempt_count)(void);
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#ifdef WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS
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#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 2, 0)
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typeof(cpu_number) *cpu_number;
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#else
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typeof(pcpu_hot) *pcpu_hot;
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#endif
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typeof(nr_cpu_ids) *nr_cpu_ids;
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#if defined(CONFIG_SMP) && (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 7, 0))
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/* note the current and needed version of these were added in af449901b8 (2020-Sep-17) */
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typeof(migrate_disable) *migrate_disable;
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typeof(migrate_enable) *migrate_enable;
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#endif
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#ifdef CONFIG_X86
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typeof(irq_fpu_usable) *irq_fpu_usable;
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/* kernel_fpu_begin() replaced by kernel_fpu_begin_mask() in commit e4512289,
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* released in kernel 5.11, backported to 5.4.93
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*/
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#ifdef kernel_fpu_begin
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typeof(kernel_fpu_begin_mask) *kernel_fpu_begin_mask;
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#else
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typeof(kernel_fpu_begin) *kernel_fpu_begin;
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#endif
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typeof(kernel_fpu_end) *kernel_fpu_end;
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#else /* !CONFIG_X86 */
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#error WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS is set for an unsupported architecture.
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#endif /* arch */
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#endif /* WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS */
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typeof(__mutex_init) *__mutex_init;
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)
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typeof(mutex_lock_nested) *mutex_lock_nested;
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#else
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typeof(mutex_lock) *mutex_lock;
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#endif
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typeof(mutex_unlock) *mutex_unlock;
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)
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typeof(mutex_destroy) *mutex_destroy;
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#endif
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#ifdef HAVE_FIPS
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typeof(wolfCrypt_FIPS_first) *wolfCrypt_FIPS_first;
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typeof(wolfCrypt_FIPS_last) *wolfCrypt_FIPS_last;
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#endif
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#if !defined(WOLFCRYPT_ONLY) && !defined(NO_CERTS)
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typeof(GetCA) *GetCA;
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#ifndef NO_SKID
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typeof(GetCAByName) *GetCAByName;
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#endif
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#endif
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const void *_last_slot;
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};
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extern const struct wolfssl_linuxkm_pie_redirect_table *wolfssl_linuxkm_get_pie_redirect_table(void);
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#ifdef __PIE__
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#ifndef __ARCH_MEMCMP_NO_REDIRECT
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#define memcmp (wolfssl_linuxkm_get_pie_redirect_table()->memcmp)
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#endif
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#ifndef __ARCH_MEMCPY_NO_REDIRECT
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#define memcpy (wolfssl_linuxkm_get_pie_redirect_table()->memcpy)
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#endif
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#ifndef __ARCH_MEMSET_NO_REDIRECT
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#define memset (wolfssl_linuxkm_get_pie_redirect_table()->memset)
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#endif
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#ifndef __ARCH_MEMMOVE_NO_REDIRECT
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#define memmove (wolfssl_linuxkm_get_pie_redirect_table()->memmove)
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#endif
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#ifndef __ARCH_STRCMP_NO_REDIRECT
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#define strcmp (wolfssl_linuxkm_get_pie_redirect_table()->strcmp)
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#endif
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#ifndef __ARCH_STRNCMP_NO_REDIRECT
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#define strncmp (wolfssl_linuxkm_get_pie_redirect_table()->strncmp)
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#endif
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#ifndef __ARCH_STRCASECMP_NO_REDIRECT
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#define strcasecmp (wolfssl_linuxkm_get_pie_redirect_table()->strcasecmp)
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#endif
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#ifndef __ARCH_STRNCASECMP_NO_REDIRECT
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#define strncasecmp (wolfssl_linuxkm_get_pie_redirect_table()->strncasecmp)
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#endif
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#ifndef __ARCH_STRLEN_NO_REDIRECT
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#define strlen (wolfssl_linuxkm_get_pie_redirect_table()->strlen)
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#endif
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#ifndef __ARCH_STRSTR_NO_REDIRECT
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#define strstr (wolfssl_linuxkm_get_pie_redirect_table()->strstr)
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#endif
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#ifndef __ARCH_STRNCPY_NO_REDIRECT
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#define strncpy (wolfssl_linuxkm_get_pie_redirect_table()->strncpy)
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#endif
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#ifndef __ARCH_STRNCAT_NO_REDIRECT
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#define strncat (wolfssl_linuxkm_get_pie_redirect_table()->strncat)
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#endif
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#define kstrtoll (wolfssl_linuxkm_get_pie_redirect_table()->kstrtoll)
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0)
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#define _printk (wolfssl_linuxkm_get_pie_redirect_table()->_printk)
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#else
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#define printk (wolfssl_linuxkm_get_pie_redirect_table()->printk)
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#endif
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#define snprintf (wolfssl_linuxkm_get_pie_redirect_table()->snprintf)
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#define _ctype (wolfssl_linuxkm_get_pie_redirect_table()->_ctype)
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#define kmalloc (wolfssl_linuxkm_get_pie_redirect_table()->kmalloc)
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#define kfree (wolfssl_linuxkm_get_pie_redirect_table()->kfree)
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#define ksize (wolfssl_linuxkm_get_pie_redirect_table()->ksize)
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#define krealloc (wolfssl_linuxkm_get_pie_redirect_table()->krealloc)
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#define kzalloc(size, flags) kmalloc(size, (flags) | __GFP_ZERO)
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#ifdef HAVE_KVMALLOC
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#define kvmalloc_node (wolfssl_linuxkm_get_pie_redirect_table()->kvmalloc_node)
|
|
#define kvfree (wolfssl_linuxkm_get_pie_redirect_table()->kvfree)
|
|
#endif
|
|
#define is_vmalloc_addr (wolfssl_linuxkm_get_pie_redirect_table()->is_vmalloc_addr)
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0)
|
|
#define kmalloc_trace (wolfssl_linuxkm_get_pie_redirect_table()->kmalloc_trace)
|
|
#else
|
|
#define kmem_cache_alloc_trace (wolfssl_linuxkm_get_pie_redirect_table()->kmem_cache_alloc_trace)
|
|
#define kmalloc_order_trace (wolfssl_linuxkm_get_pie_redirect_table()->kmalloc_order_trace)
|
|
#endif
|
|
|
|
#define get_random_bytes (wolfssl_linuxkm_get_pie_redirect_table()->get_random_bytes)
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)
|
|
#define getnstimeofday (wolfssl_linuxkm_get_pie_redirect_table()->getnstimeofday)
|
|
#elif LINUX_VERSION_CODE < KERNEL_VERSION(5, 0, 0)
|
|
#define current_kernel_time64 (wolfssl_linuxkm_get_pie_redirect_table()->current_kernel_time64)
|
|
#else
|
|
#define ktime_get_coarse_real_ts64 (wolfssl_linuxkm_get_pie_redirect_table()->ktime_get_coarse_real_ts64)
|
|
#endif
|
|
|
|
#undef get_current
|
|
#define get_current (wolfssl_linuxkm_get_pie_redirect_table()->get_current)
|
|
#undef preempt_count
|
|
#define preempt_count (wolfssl_linuxkm_get_pie_redirect_table()->preempt_count)
|
|
|
|
#ifdef WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 2, 0)
|
|
#define cpu_number (*(wolfssl_linuxkm_get_pie_redirect_table()->cpu_number))
|
|
#else
|
|
#define pcpu_hot (*(wolfssl_linuxkm_get_pie_redirect_table()->pcpu_hot))
|
|
#endif
|
|
#define nr_cpu_ids (*(wolfssl_linuxkm_get_pie_redirect_table()->nr_cpu_ids))
|
|
|
|
#if defined(CONFIG_SMP) && (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 7, 0))
|
|
#define migrate_disable (*(wolfssl_linuxkm_get_pie_redirect_table()->migrate_disable))
|
|
#define migrate_enable (*(wolfssl_linuxkm_get_pie_redirect_table()->migrate_enable))
|
|
#endif
|
|
|
|
#ifdef CONFIG_X86
|
|
#define irq_fpu_usable (wolfssl_linuxkm_get_pie_redirect_table()->irq_fpu_usable)
|
|
#ifdef kernel_fpu_begin
|
|
#define kernel_fpu_begin_mask (wolfssl_linuxkm_get_pie_redirect_table()->kernel_fpu_begin_mask)
|
|
#else
|
|
#define kernel_fpu_begin (wolfssl_linuxkm_get_pie_redirect_table()->kernel_fpu_begin)
|
|
#endif
|
|
#define kernel_fpu_end (wolfssl_linuxkm_get_pie_redirect_table()->kernel_fpu_end)
|
|
#else /* !CONFIG_X86 */
|
|
#error WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS is set for an unsupported architecture.
|
|
#endif /* archs */
|
|
#endif /* WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS */
|
|
|
|
#define __mutex_init (wolfssl_linuxkm_get_pie_redirect_table()->__mutex_init)
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)
|
|
#define mutex_lock_nested (wolfssl_linuxkm_get_pie_redirect_table()->mutex_lock_nested)
|
|
#else
|
|
#define mutex_lock (wolfssl_linuxkm_get_pie_redirect_table()->mutex_lock)
|
|
#endif
|
|
#define mutex_unlock (wolfssl_linuxkm_get_pie_redirect_table()->mutex_unlock)
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)
|
|
#define mutex_destroy (wolfssl_linuxkm_get_pie_redirect_table()->mutex_destroy)
|
|
#endif
|
|
|
|
/* per linux/ctype.h, tolower() and toupper() are macros bound to static inlines
|
|
* that use macros that bring in the _ctype global. for __PIE__, this needs to
|
|
* be masked out.
|
|
*/
|
|
#undef tolower
|
|
#undef toupper
|
|
#define tolower(c) (islower(c) ? (c) : ((c) + ('a'-'A')))
|
|
#define toupper(c) (isupper(c) ? (c) : ((c) - ('a'-'A')))
|
|
|
|
#if !defined(WOLFCRYPT_ONLY) && !defined(NO_CERTS)
|
|
#define GetCA (wolfssl_linuxkm_get_pie_redirect_table()->GetCA)
|
|
#ifndef NO_SKID
|
|
#define GetCAByName (wolfssl_linuxkm_get_pie_redirect_table()->GetCAByName)
|
|
#endif
|
|
#endif
|
|
|
|
#endif /* __PIE__ */
|
|
|
|
#endif /* USE_WOLFSSL_LINUXKM_PIE_REDIRECT_TABLE */
|
|
|
|
#ifdef WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS
|
|
|
|
#ifdef CONFIG_X86
|
|
|
|
extern __must_check int allocate_wolfcrypt_linuxkm_fpu_states(void);
|
|
extern void free_wolfcrypt_linuxkm_fpu_states(void);
|
|
extern __must_check int save_vector_registers_x86(void);
|
|
extern void restore_vector_registers_x86(void);
|
|
|
|
#elif defined(CONFIG_ARM) || defined(CONFIG_ARM64)
|
|
|
|
#error kernel module ARM SIMD is not yet tested or usable.
|
|
|
|
static WARN_UNUSED_RESULT inline int save_vector_registers_arm(void)
|
|
{
|
|
preempt_disable();
|
|
if (! may_use_simd()) {
|
|
preempt_enable();
|
|
return BAD_STATE_E;
|
|
} else {
|
|
fpsimd_preserve_current_state();
|
|
return 0;
|
|
}
|
|
}
|
|
static inline void restore_vector_registers_arm(void)
|
|
{
|
|
fpsimd_restore_current_state();
|
|
preempt_enable();
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS */
|
|
|
|
/* remove this multifariously conflicting macro, picked up from
|
|
* Linux arch/<arch>/include/asm/current.h.
|
|
*/
|
|
#ifndef WOLFSSL_NEED_LINUX_CURRENT
|
|
#undef current
|
|
#endif
|
|
|
|
/* min() and max() in linux/kernel.h over-aggressively type-check, producing
|
|
* myriad spurious -Werrors throughout the codebase.
|
|
*/
|
|
#undef min
|
|
#undef max
|
|
|
|
/* work around namespace conflict between wolfssl/internal.h (enum HandShakeType)
|
|
* and linux/key.h (extern int()).
|
|
*/
|
|
#define key_update wc_key_update
|
|
|
|
#define lkm_printf(format, args...) printk(KERN_INFO "wolfssl: %s(): " format, __func__, ## args)
|
|
#define printf(...) lkm_printf(__VA_ARGS__)
|
|
|
|
#ifdef HAVE_FIPS
|
|
extern void fipsEntry(void);
|
|
#endif
|
|
|
|
/* suppress false-positive "writing 1 byte into a region of size 0" warnings
|
|
* building old kernels with new gcc:
|
|
*/
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)
|
|
_Pragma("GCC diagnostic ignored \"-Wstringop-overflow\"");
|
|
#endif
|
|
|
|
/* includes are all above, with incompatible warnings masked out. */
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 5, 0)
|
|
typedef __kernel_time_t time_t;
|
|
#else
|
|
typedef __kernel_time64_t time_t;
|
|
#endif
|
|
extern time_t time(time_t * timer);
|
|
#define XTIME time
|
|
#define WOLFSSL_GMTIME
|
|
#define XGMTIME(c, t) gmtime(c)
|
|
#define NO_TIMEVAL 1
|
|
|
|
#endif /* BUILDING_WOLFSSL */
|
|
|
|
/* if BUILDING_WOLFSSL, mutex.h will have already been included recursively
|
|
* above, with the bevy of warnings suppressed, and the below include will
|
|
* be a redundant no-op.
|
|
*/
|
|
#include <linux/mutex.h>
|
|
typedef struct mutex wolfSSL_Mutex;
|
|
|
|
/* prevent gcc's mm_malloc.h from being included, since it unconditionally
|
|
* includes stdlib.h, which is kernel-incompatible.
|
|
*/
|
|
#define _MM_MALLOC_H_INCLUDED
|
|
|
|
/* fun fact: since linux commit 59bb47985c, kmalloc with power-of-2 size is
|
|
* aligned to the size.
|
|
*/
|
|
#define WC_LINUXKM_ROUND_UP_P_OF_2(x) ( \
|
|
{ \
|
|
size_t _alloc_sz = (x); \
|
|
_alloc_sz = 1UL << ((sizeof(_alloc_sz) * 8UL) - __builtin_clzl(_alloc_sz)); \
|
|
_alloc_sz; \
|
|
})
|
|
#ifdef HAVE_KVMALLOC
|
|
#define malloc(size) kvmalloc_node(WC_LINUXKM_ROUND_UP_P_OF_2(size), GFP_KERNEL, NUMA_NO_NODE)
|
|
#define free(ptr) kvfree(ptr)
|
|
void *lkm_realloc(void *ptr, size_t newsize);
|
|
#define realloc(ptr, newsize) lkm_realloc(ptr, WC_LINUXKM_ROUND_UP_P_OF_2(newsize))
|
|
#else
|
|
#define malloc(size) kmalloc(WC_LINUXKM_ROUND_UP_P_OF_2(size), GFP_KERNEL)
|
|
#define free(ptr) kfree(ptr)
|
|
#define realloc(ptr, newsize) krealloc(ptr, WC_LINUXKM_ROUND_UP_P_OF_2(newsize), GFP_KERNEL)
|
|
#endif
|
|
|
|
#ifdef WOLFSSL_TRACK_MEMORY
|
|
#include <wolfssl/wolfcrypt/memory.h>
|
|
#define XMALLOC(s, h, t) ({(void)(h); (void)(t); wolfSSL_Malloc(s);})
|
|
#define XFREE(p, h, t) ({void* _xp; (void)(h); _xp = (p); if(_xp) wolfSSL_Free(_xp);})
|
|
#define XREALLOC(p, n, h, t) ({(void)(h); (void)(t); wolfSSL_Realloc(p, n);})
|
|
#else
|
|
#define XMALLOC(s, h, t) ({(void)(h); (void)(t); malloc(s);})
|
|
#define XFREE(p, h, t) ({void* _xp; (void)(h); _xp = (p); if(_xp) free(_xp);})
|
|
#define XREALLOC(p, n, h, t) ({(void)(h); (void)(t); realloc(p, n);})
|
|
#endif
|
|
|
|
#include <linux/limits.h>
|
|
|
|
/* Linux headers define these using C expressions, but we need
|
|
* them to be evaluable by the preprocessor, for use in sp_int.h.
|
|
*/
|
|
#if BITS_PER_LONG == 64
|
|
_Static_assert(sizeof(ULONG_MAX) == 8,
|
|
"BITS_PER_LONG is 64, but ULONG_MAX is not.");
|
|
|
|
#undef UCHAR_MAX
|
|
#define UCHAR_MAX 255
|
|
#undef USHRT_MAX
|
|
#define USHRT_MAX 65535
|
|
#undef UINT_MAX
|
|
#define UINT_MAX 4294967295U
|
|
#undef ULONG_MAX
|
|
#define ULONG_MAX 18446744073709551615UL
|
|
#undef ULLONG_MAX
|
|
#define ULLONG_MAX ULONG_MAX
|
|
#undef INT_MAX
|
|
#define INT_MAX 2147483647
|
|
#undef LONG_MAX
|
|
#define LONG_MAX 9223372036854775807L
|
|
#undef LLONG_MAX
|
|
#define LLONG_MAX LONG_MAX
|
|
|
|
#elif BITS_PER_LONG == 32
|
|
|
|
_Static_assert(sizeof(ULONG_MAX) == 4,
|
|
"BITS_PER_LONG is 32, but ULONG_MAX is not.");
|
|
|
|
#undef UCHAR_MAX
|
|
#define UCHAR_MAX 255
|
|
#undef USHRT_MAX
|
|
#define USHRT_MAX 65535
|
|
#undef UINT_MAX
|
|
#define UINT_MAX 4294967295U
|
|
#undef ULONG_MAX
|
|
#define ULONG_MAX 4294967295UL
|
|
#undef INT_MAX
|
|
#define INT_MAX 2147483647
|
|
#undef LONG_MAX
|
|
#define LONG_MAX 2147483647L
|
|
|
|
#undef ULLONG_MAX
|
|
#undef LLONG_MAX
|
|
#if BITS_PER_LONG_LONG == 64
|
|
#define ULLONG_MAX 18446744073709551615UL
|
|
#define LLONG_MAX 9223372036854775807L
|
|
#else
|
|
#undef NO_64BIT
|
|
#define NO_64BIT
|
|
#define ULLONG_MAX ULONG_MAX
|
|
#define LLONG_MAX LONG_MAX
|
|
#endif
|
|
|
|
#else
|
|
#error unexpected BITS_PER_LONG value.
|
|
#endif
|
|
|
|
#endif /* LINUXKM_WC_PORT_H */
|