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include/internal/common.h
328 строк
14 KB
Frederik Wedel-Heinen
Move common macro definitions to internal/common.h and fix comments.
11 июн 2026, 18:51
11 июн 2026, 18:51
ba4605d
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/* * Copyright 1995-2025 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the Apache License 2.0 (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy * in the file LICENSE in the source distribution or at * https://www.openssl.org/source/license.html */ #ifndef OSSL_INTERNAL_COMMON_H #define OSSL_INTERNAL_COMMON_H #pragma once #include <stdlib.h> #include <string.h> #include "openssl/configuration.h" #include "internal/e_os.h" /* ossl_inline in many files */ #include "internal/nelem.h" #if defined(__GNUC__) || defined(__clang__) #define ossl_likely(x) __builtin_expect(!!(x), 1) #define ossl_unlikely(x) __builtin_expect(!!(x), 0) #else #define ossl_likely(x) (x) #define ossl_unlikely(x) (x) #endif #if defined(__GNUC__) || defined(__clang__) #define ALIGN16 __attribute((aligned(16))) #define ALIGN32 __attribute((aligned(32))) #define ALIGN64 __attribute((aligned(64))) #elif defined(_MSC_VER) #define ALIGN16 __declspec(align(16)) #define ALIGN32 __declspec(align(32)) #define ALIGN64 __declspec(align(64)) #else #define ALIGN16 #define ALIGN32 #define ALIGN64 #endif #ifdef NDEBUG #define ossl_assert(x) ossl_likely((x) != 0) #else __owur static ossl_inline int ossl_assert_int(int expr, const char *exprstr, const char *file, int line) { if (!expr) OPENSSL_die(exprstr, file, line); return expr; } #define ossl_assert(x) ossl_assert_int((x) != 0, "Assertion failed: " #x, \ __FILE__, __LINE__) #endif /* Check if |pre|, which must be a string literal, is a prefix of |str| */ #define HAS_PREFIX(str, pre) (strncmp(str, pre "", sizeof(pre) - 1) == 0) /* As before, and if check succeeds, advance |str| past the prefix |pre| */ #define CHECK_AND_SKIP_PREFIX(str, pre) \ (HAS_PREFIX(str, pre) ? ((str) += sizeof(pre) - 1, 1) : 0) /* Check if the string literal |p| is a case-insensitive prefix of |s| */ #define HAS_CASE_PREFIX(s, p) (OPENSSL_strncasecmp(s, p "", sizeof(p) - 1) == 0) /* As before, and if check succeeds, advance |str| past the prefix |pre| */ #define CHECK_AND_SKIP_CASE_PREFIX(str, pre) \ (HAS_CASE_PREFIX(str, pre) ? ((str) += sizeof(pre) - 1, 1) : 0) /* Check if the string literal |suffix| is a case-insensitive suffix of |str| */ #define HAS_CASE_SUFFIX(str, suffix) (strlen(str) < sizeof(suffix) - 1 ? 0 : OPENSSL_strcasecmp(str + strlen(str) - sizeof(suffix) + 1, suffix "") == 0) /* * Use this inside a union with the field that needs to be aligned to a * reasonable boundary for the platform. The most pessimistic alignment * of the listed types will be used by the compiler. */ #define OSSL_UNION_ALIGN \ double align; \ ossl_uintmax_t align_int; \ void *align_ptr #define OPENSSL_CONF "openssl.cnf" #ifndef OPENSSL_SYS_VMS #define X509_CERT_AREA OPENSSLDIR #define X509_CERT_DIR OPENSSLDIR "/certs" #define X509_CERT_FILE OPENSSLDIR "/cert.pem" #define X509_PRIVATE_DIR OPENSSLDIR "/private" #define CTLOG_FILE OPENSSLDIR "/ct_log_list.cnf" #else #define X509_CERT_AREA "OSSL$DATAROOT:[000000]" #define X509_CERT_DIR "OSSL$DATAROOT:[CERTS]" #define X509_CERT_FILE "OSSL$DATAROOT:[000000]cert.pem" #define X509_PRIVATE_DIR "OSSL$DATAROOT:[PRIVATE]" #define CTLOG_FILE "OSSL$DATAROOT:[000000]ct_log_list.cnf" #endif #define X509_CERT_DIR_EVP "SSL_CERT_DIR" #define X509_CERT_FILE_EVP "SSL_CERT_FILE" #define CTLOG_FILE_EVP "CTLOG_FILE" /* size of string representations */ #define DECIMAL_SIZE(type) ((sizeof(type) * 8 + 2) / 3 + 1) #define HEX_SIZE(type) (sizeof(type) * 2) #define c2l(c, l) (l = ((unsigned long)(*((c)++))), \ l |= (((unsigned long)(*((c)++))) << 8), \ l |= (((unsigned long)(*((c)++))) << 16), \ l |= (((unsigned long)(*((c)++))) << 24)) #define c2ln(c, l1, l2, n) \ { \ c += n; \ l1 = l2 = 0; \ switch (n) { \ case 8: \ l2 = ((unsigned long)(*(--(c)))) << 24; \ /* fall through */ \ case 7: \ l2 |= ((unsigned long)(*(--(c)))) << 16; \ /* fall through */ \ case 6: \ l2 |= ((unsigned long)(*(--(c)))) << 8; \ /* fall through */ \ case 5: \ l2 |= ((unsigned long)(*(--(c)))); \ /* fall through */ \ case 4: \ l1 = ((unsigned long)(*(--(c)))) << 24; \ /* fall through */ \ case 3: \ l1 |= ((unsigned long)(*(--(c)))) << 16; \ /* fall through */ \ case 2: \ l1 |= ((unsigned long)(*(--(c)))) << 8; \ /* fall through */ \ case 1: \ l1 |= ((unsigned long)(*(--(c)))); \ } \ } #define l2c(l, c) (*((c)++) = (unsigned char)(((l)) & 0xff), \ *((c)++) = (unsigned char)(((l) >> 8) & 0xff), \ *((c)++) = (unsigned char)(((l) >> 16) & 0xff), \ *((c)++) = (unsigned char)(((l) >> 24) & 0xff)) #define n2l(c, l) (l = ((unsigned long)(*((c)++))) << 24, \ l |= ((unsigned long)(*((c)++))) << 16, \ l |= ((unsigned long)(*((c)++))) << 8, \ l |= ((unsigned long)(*((c)++)))) #define n2l8(c, l) (l = ((uint64_t)(*((c)++))) << 56, \ l |= ((uint64_t)(*((c)++))) << 48, \ l |= ((uint64_t)(*((c)++))) << 40, \ l |= ((uint64_t)(*((c)++))) << 32, \ l |= ((uint64_t)(*((c)++))) << 24, \ l |= ((uint64_t)(*((c)++))) << 16, \ l |= ((uint64_t)(*((c)++))) << 8, \ l |= ((uint64_t)(*((c)++)))) #define n2ln(c, l1, l2, n) \ { \ c += n; \ l1 = l2 = 0; \ switch (n) { \ case 8: \ l2 = ((unsigned long)(*(--(c)))); \ /* fall through */ \ case 7: \ l2 |= ((unsigned long)(*(--(c)))) << 8; \ /* fall through */ \ case 6: \ l2 |= ((unsigned long)(*(--(c)))) << 16; \ /* fall through */ \ case 5: \ l2 |= ((unsigned long)(*(--(c)))) << 24; \ /* fall through */ \ case 4: \ l1 = ((unsigned long)(*(--(c)))); \ /* fall through */ \ case 3: \ l1 |= ((unsigned long)(*(--(c)))) << 8; \ /* fall through */ \ case 2: \ l1 |= ((unsigned long)(*(--(c)))) << 16; \ /* fall through */ \ case 1: \ l1 |= ((unsigned long)(*(--(c)))) << 24; \ } \ } #define l2n(l, c) (*((c)++) = (unsigned char)(((l) >> 24) & 0xff), \ *((c)++) = (unsigned char)(((l) >> 16) & 0xff), \ *((c)++) = (unsigned char)(((l) >> 8) & 0xff), \ *((c)++) = (unsigned char)(((l)) & 0xff)) #define l2n8(l, c) (*((c)++) = (unsigned char)(((l) >> 56) & 0xff), \ *((c)++) = (unsigned char)(((l) >> 48) & 0xff), \ *((c)++) = (unsigned char)(((l) >> 40) & 0xff), \ *((c)++) = (unsigned char)(((l) >> 32) & 0xff), \ *((c)++) = (unsigned char)(((l) >> 24) & 0xff), \ *((c)++) = (unsigned char)(((l) >> 16) & 0xff), \ *((c)++) = (unsigned char)(((l) >> 8) & 0xff), \ *((c)++) = (unsigned char)(((l)) & 0xff)) /* NOTE - c is not incremented as per l2n */ #define l2nn(l1, l2, c, n) \ { \ c += n; \ switch (n) { \ case 8: \ *(--(c)) = (unsigned char)(((l2)) & 0xff); \ /* fall through */ \ case 7: \ *(--(c)) = (unsigned char)(((l2) >> 8) & 0xff); \ /* fall through */ \ case 6: \ *(--(c)) = (unsigned char)(((l2) >> 16) & 0xff); \ /* fall through */ \ case 5: \ *(--(c)) = (unsigned char)(((l2) >> 24) & 0xff); \ /* fall through */ \ case 4: \ *(--(c)) = (unsigned char)(((l1)) & 0xff); \ /* fall through */ \ case 3: \ *(--(c)) = (unsigned char)(((l1) >> 8) & 0xff); \ /* fall through */ \ case 2: \ *(--(c)) = (unsigned char)(((l1) >> 16) & 0xff); \ /* fall through */ \ case 1: \ *(--(c)) = (unsigned char)(((l1) >> 24) & 0xff); \ } \ } #define l2cn(l1, l2, c, n) \ { \ c += n; \ switch (n) { \ case 8: \ *(--(c)) = (unsigned char)(((l2) >> 24) & 0xff); \ /* fall through */ \ case 7: \ *(--(c)) = (unsigned char)(((l2) >> 16) & 0xff); \ /* fall through */ \ case 6: \ *(--(c)) = (unsigned char)(((l2) >> 8) & 0xff); \ /* fall through */ \ case 5: \ *(--(c)) = (unsigned char)(((l2)) & 0xff); \ /* fall through */ \ case 4: \ *(--(c)) = (unsigned char)(((l1) >> 24) & 0xff); \ /* fall through */ \ case 3: \ *(--(c)) = (unsigned char)(((l1) >> 16) & 0xff); \ /* fall through */ \ case 2: \ *(--(c)) = (unsigned char)(((l1) >> 8) & 0xff); \ /* fall through */ \ case 1: \ *(--(c)) = (unsigned char)(((l1)) & 0xff); \ } \ } #define n2s(c, s) ((s = (((unsigned int)((c)[0])) << 8) | (((unsigned int)((c)[1])))), (c) += 2) #define s2n(s, c) (((c)[0] = (unsigned char)(((s) >> 8) & 0xff), \ (c)[1] = (unsigned char)(((s)) & 0xff)), \ (c) += 2) #define n2l3(c, l) ((l = (((unsigned long)((c)[0])) << 16) | (((unsigned long)((c)[1])) << 8) | (((unsigned long)((c)[2])))), (c) += 3) #define l2n3(l, c) (((c)[0] = (unsigned char)(((l) >> 16) & 0xff), \ (c)[1] = (unsigned char)(((l) >> 8) & 0xff), \ (c)[2] = (unsigned char)(((l)) & 0xff)), \ (c) += 3) static ossl_inline int ossl_ends_with_dirsep(const char *path) { if (*path != '\0') path += strlen(path) - 1; #if defined __VMS if (*path == ']' || *path == '>' || *path == ':') return 1; #elif defined _WIN32 if (*path == '\\') return 1; #endif return *path == '/'; } static ossl_inline char ossl_determine_dirsep(const char *path) { if (ossl_ends_with_dirsep(path)) return '\0'; #if defined(_WIN32) return '\\'; #elif defined(__VMS) return ':'; #else return '/'; #endif } static ossl_inline int ossl_is_absolute_path(const char *path) { #if defined __VMS if (strchr(path, ':') != NULL || ((path[0] == '[' || path[0] == '<') && path[1] != '.' && path[1] != '-' && path[1] != ']' && path[1] != '>')) return 1; #elif defined _WIN32 if (path[0] == '\\' || (path[0] != '\0' && path[1] == ':')) return 1; #endif return path[0] == '/'; } const char *ossl_get_openssldir(void); const char *ossl_get_modulesdir(void); const char *ossl_get_wininstallcontext(void); #endif