aboutsummaryrefslogtreecommitdiff
path: root/ConfigureChecks.cmake
blob: 3bb4a5e05b7364d993e7cf4321ded2a34b51869c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
include(CheckIncludeFile)
include(CheckIncludeFiles)
include(CheckSymbolExists)
include(CheckFunctionExists)
include(CheckLibraryExists)
include(CheckTypeSize)
include(CheckCXXSourceCompiles)
include(TestBigEndian)

set(PACKAGE ${APPLICATION_NAME})
set(VERSION ${APPLICATION_VERSION})
set(DATADIR ${DATA_INSTALL_DIR})
set(LIBDIR ${LIB_INSTALL_DIR})
set(PLUGINDIR "${PLUGIN_INSTALL_DIR}-${LIBRARY_SOVERSION}")
set(SYSCONFDIR ${SYSCONF_INSTALL_DIR})

set(BINARYDIR ${CMAKE_BINARY_DIR})
set(SOURCEDIR ${CMAKE_SOURCE_DIR})

function(COMPILER_DUMPVERSION _OUTPUT_VERSION)
    # Remove whitespaces from the argument.
    # This is needed for CC="ccache gcc" cmake ..
    string(REPLACE " " "" _C_COMPILER_ARG "${CMAKE_C_COMPILER_ARG1}")

    execute_process(
        COMMAND
            ${CMAKE_C_COMPILER} ${_C_COMPILER_ARG} -dumpversion
        OUTPUT_VARIABLE _COMPILER_VERSION
    )

    string(REGEX REPLACE "([0-9])\\.([0-9])(\\.[0-9])?" "\\1\\2"
           _COMPILER_VERSION "${_COMPILER_VERSION}")

    set(${_OUTPUT_VERSION} ${_COMPILER_VERSION} PARENT_SCOPE)
endfunction()

if(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)
    compiler_dumpversion(GNUCC_VERSION)
    if (NOT GNUCC_VERSION EQUAL 34)
        set(CMAKE_REQUIRED_FLAGS "-fvisibility=hidden")
        check_c_source_compiles(
"void __attribute__((visibility(\"default\"))) test() {}
int main(void){ return 0; }
" WITH_VISIBILITY_HIDDEN)
        set(CMAKE_REQUIRED_FLAGS "")
    endif (NOT GNUCC_VERSION EQUAL 34)
endif(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)

# HEADER FILES
set(CMAKE_REQUIRED_INCLUDES_SAVE ${CMAKE_REQUIRED_INCLUDES})
set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} ${ARGP_INCLUDE_DIR})
check_include_file(argp.h HAVE_ARGP_H)
set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES_SAVE})

check_include_file(pty.h HAVE_PTY_H)
check_include_file(utmp.h HAVE_UTMP_H)
check_include_file(termios.h HAVE_TERMIOS_H)
check_include_file(unistd.h HAVE_UNISTD_H)
check_include_file(stdint.h HAVE_STDINT_H)
check_include_file(util.h HAVE_UTIL_H)
check_include_file(libutil.h HAVE_LIBUTIL_H)
check_include_file(sys/time.h HAVE_SYS_TIME_H)
check_include_file(sys/utime.h HAVE_SYS_UTIME_H)
check_include_file(sys/param.h HAVE_SYS_PARAM_H)
check_include_file(arpa/inet.h HAVE_ARPA_INET_H)
check_include_file(byteswap.h HAVE_BYTESWAP_H)
check_include_file(glob.h HAVE_GLOB_H)

if (WIN32)
  check_include_file(io.h HAVE_IO_H)

  check_include_files("winsock2.h;ws2tcpip.h;wspiapi.h" HAVE_WSPIAPI_H)
  if (NOT HAVE_WSPIAPI_H)
    message(STATUS "WARNING: Without wspiapi.h, this build will only work on Windows XP and newer versions")
  endif (NOT HAVE_WSPIAPI_H)
  check_include_files("winsock2.h;ws2tcpip.h" HAVE_WS2TCPIP_H)
endif (WIN32)

if (OPENSSL_FOUND)
    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
    check_include_file(openssl/des.h HAVE_OPENSSL_DES_H)
    if (NOT HAVE_OPENSSL_DES_H)
        message(FATAL_ERROR "Could not detect openssl/des.h")
    endif()

    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
    check_include_file(openssl/aes.h HAVE_OPENSSL_AES_H)
    if (NOT HAVE_OPENSSL_AES_H)
        message(FATAL_ERROR "Could not detect openssl/aes.h")
    endif()

    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
    check_include_file(openssl/blowfish.h HAVE_OPENSSL_BLOWFISH_H)

    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
    check_include_file(openssl/ecdh.h HAVE_OPENSSL_ECDH_H)

    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
    check_include_file(openssl/ec.h HAVE_OPENSSL_EC_H)

    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
    check_include_file(openssl/ecdsa.h HAVE_OPENSSL_ECDSA_H)

    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
    set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY})
    check_function_exists(EVP_aes_128_ctr HAVE_OPENSSL_EVP_AES_CTR)

    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
    set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY})
    check_function_exists(EVP_aes_128_cbc HAVE_OPENSSL_EVP_AES_CBC)

    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
    set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY})
    check_function_exists(CRYPTO_THREADID_set_callback HAVE_OPENSSL_CRYPTO_THREADID_SET_CALLBACK)

    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
    set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY})
    check_function_exists(CRYPTO_ctr128_encrypt HAVE_OPENSSL_CRYPTO_CTR128_ENCRYPT)

    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
    set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY})
    check_function_exists(EVP_CIPHER_CTX_new HAVE_OPENSSL_EVP_CIPHER_CTX_NEW)
endif()

if (CMAKE_HAVE_PTHREAD_H)
  set(HAVE_PTHREAD_H 1)
endif (CMAKE_HAVE_PTHREAD_H)

if (NOT WITH_GCRYPT AND NOT WITH_MBEDTLS)
    if (HAVE_OPENSSL_EC_H AND HAVE_OPENSSL_ECDSA_H)
        set(HAVE_OPENSSL_ECC 1)
    endif (HAVE_OPENSSL_EC_H AND HAVE_OPENSSL_ECDSA_H)

    if (HAVE_OPENSSL_ECC)
        set(HAVE_ECC 1)
    endif (HAVE_OPENSSL_ECC)
endif ()

if (NOT WITH_MBEDTLS)
    set(HAVE_DSA 1)
    set(HAVE_CHACHA 1)
endif (NOT WITH_MBEDTLS)

# FUNCTIONS

check_function_exists(isblank HAVE_ISBLANK)
check_function_exists(strncpy HAVE_STRNCPY)
check_function_exists(strtoull HAVE_STRTOULL)
check_function_exists(explicit_bzero HAVE_EXPLICIT_BZERO)
check_function_exists(memset_s HAVE_MEMSET_S)

if (HAVE_GLOB_H)
  check_function_exists(glob HAVE_GLOB)
endif (HAVE_GLOB_H)

if (NOT WIN32)
  check_function_exists(vsnprintf HAVE_VSNPRINTF)
  check_function_exists(snprintf HAVE_SNPRINTF)
endif (NOT WIN32)

if (WIN32)
    check_symbol_exists(vsnprintf "stdio.h" HAVE_VSNPRINTF)
    check_symbol_exists(snprintf "stdio.h" HAVE_SNPRINTF)

    check_symbol_exists(_vsnprintf_s "stdio.h" HAVE__VSNPRINTF_S)
    check_symbol_exists(_vsnprintf "stdio.h" HAVE__VSNPRINTF)
    check_symbol_exists(_snprintf "stdio.h" HAVE__SNPRINTF)
    check_symbol_exists(_snprintf_s "stdio.h" HAVE__SNPRINTF_S)

    if (HAVE_WSPIAPI_H OR HAVE_WS2TCPIP_H)
        check_symbol_exists(ntohll winsock2.h HAVE_NTOHLL)
        check_symbol_exists(htonll winsock2.h HAVE_HTONLL)

        set(CMAKE_REQUIRED_LIBRARIES ws2_32)
        check_symbol_exists(select "winsock2.h;ws2tcpip.h" HAVE_SELECT)
        check_symbol_exists(poll "winsock2.h;ws2tcpip.h" HAVE_SELECT)
        # The getaddrinfo function is defined to the WspiapiGetAddrInfo inline function
        check_symbol_exists(getaddrinfo "winsock2.h;ws2tcpip.h" HAVE_GETADDRINFO)
        set(CMAKE_REQUIRED_LIBRARIES)
    endif (HAVE_WSPIAPI_H OR HAVE_WS2TCPIP_H)

    check_function_exists(_strtoui64 HAVE__STRTOUI64)

    set(HAVE_SELECT TRUE)

    check_symbol_exists(SecureZeroMemory "windows.h" HAVE_SECURE_ZERO_MEMORY)
else (WIN32)
    check_function_exists(poll HAVE_POLL)
    check_function_exists(select HAVE_SELECT)
    check_function_exists(getaddrinfo HAVE_GETADDRINFO)

    check_symbol_exists(ntohll arpa/inet.h HAVE_NTOHLL)
    check_symbol_exists(htonll arpa/inet.h HAVE_HTONLL)
endif (WIN32)


if (UNIX)
    if (NOT LINUX)
        # libsocket (Solaris)
        check_library_exists(socket getaddrinfo "" HAVE_LIBSOCKET)
        if (HAVE_LIBSOCKET)
            set(HAVE_GETADDRINFO TRUE)
            set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} socket)
        endif (HAVE_LIBSOCKET)

        # libnsl/inet_pton (Solaris)
        check_library_exists(nsl inet_pton "" HAVE_LIBNSL)
        if (HAVE_LIBNSL)
            set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} nsl)
        endif (HAVE_LIBNSL)

        # librt
        check_library_exists(rt nanosleep "" HAVE_LIBRT)
    endif (NOT LINUX)

    check_library_exists(rt clock_gettime "" HAVE_CLOCK_GETTIME)
    if (HAVE_LIBRT OR HAVE_CLOCK_GETTIME)
        set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} rt)
    endif (HAVE_LIBRT OR HAVE_CLOCK_GETTIME)

    check_library_exists(util forkpty "" HAVE_LIBUTIL)
    check_function_exists(cfmakeraw HAVE_CFMAKERAW)
    check_function_exists(__strtoull HAVE___STRTOULL)
endif (UNIX)

set(LIBSSH_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CACHE INTERNAL "libssh required system libraries")

# LIBRARIES
if (OPENSSL_FOUND)
  set(HAVE_LIBCRYPTO 1)
endif (OPENSSL_FOUND)

if (GCRYPT_FOUND)
    set(HAVE_LIBGCRYPT 1)
    if (GCRYPT_VERSION VERSION_GREATER "1.4.6")
        set(HAVE_GCRYPT_ECC 1)
        set(HAVE_ECC 1)
    endif (GCRYPT_VERSION VERSION_GREATER "1.4.6")
endif (GCRYPT_FOUND)

if (MBEDTLS_FOUND)
    set(HAVE_LIBMBEDCRYPTO 1)
    set(HAVE_ECC 1)
endif (MBEDTLS_FOUND)

if (CMAKE_USE_PTHREADS_INIT)
    set(HAVE_PTHREAD 1)
endif (CMAKE_USE_PTHREADS_INIT)

# OPTIONS
check_c_source_compiles("
__thread int tls;

int main(void) {
    return 0;
}" HAVE_GCC_THREAD_LOCAL_STORAGE)

check_c_source_compiles("
__declspec(thread) int tls;

int main(void) {
    return 0;
}" HAVE_MSC_THREAD_LOCAL_STORAGE)

check_c_source_compiles("
#define FALL_THROUGH __attribute__((fallthrough))

enum direction_e {
    UP = 0,
    DOWN,
};

int main(void) {
    enum direction_e key = UP;
    int i = 10;
    int j = 0;

    switch (key) {
    case UP:
        i = 5;
        FALL_THROUGH;
    case DOWN:
        j = i * 2;
        break;
    default:
        break;
    }

    return 0;
}" HAVE_FALLTHROUGH_ATTRIBUTE)

check_c_source_compiles("
#include <string.h>

int main(void)
{
    char buf[] = \"This is some content\";

    memset(buf, '\\\\0', sizeof(buf)); __asm__ volatile(\"\" : : \"g\"(&buf) : \"memory\");

    return 0;
}" HAVE_GCC_VOLATILE_MEMORY_PROTECTION)

check_c_source_compiles("
#include <stdio.h>
#define __VA_NARG__(...) (__VA_NARG_(_0, ## __VA_ARGS__, __RSEQ_N()) - 1)
#define __VA_NARG_(...) __VA_ARG_N(__VA_ARGS__)
#define __VA_ARG_N( _1, _2, _3, _4, _5, _6, _7, _8, _9,_10,N,...) N
#define __RSEQ_N() 10, 9,  8,  7,  6,  5,  4,  3,  2,  1,  0
#define myprintf(format, ...) printf((format), __VA_NARG__(__VA_ARGS__), __VA_ARGS__)
int main(void) {
    myprintf(\"%d %d %d %d\",1,2,3);
    return 0;
}" HAVE_GCC_NARG_MACRO)

check_c_source_compiles("
#include <stdio.h>
int main(void) {
    printf(\"%s\", __func__);
    return 0;
}" HAVE_COMPILER__FUNC__)

check_c_source_compiles("
#include <stdio.h>
int main(void) {
    printf(\"%s\", __FUNCTION__);
    return 0;
}" HAVE_COMPILER__FUNCTION__)


check_c_source_compiles("
void chacha_keysetup(struct chacha_ctx *x, const u_char *k, u_int kbits)
    __attribute__((__bounded__(__minbytes__, 2, CHACHA_MINKEYLEN)));
int main(void) { return 0; }" HAVE_GCC_BOUNDED_ATTRIBUTE)

if (WITH_DEBUG_CRYPTO)
  set(DEBUG_CRYPTO 1)
endif (WITH_DEBUG_CRYPTO)

if (WITH_DEBUG_PACKET)
  set(DEBUG_PACKET 1)
endif (WITH_DEBUG_PACKET)

if (WITH_DEBUG_CALLTRACE)
  set(DEBUG_CALLTRACE 1)
endif (WITH_DEBUG_CALLTRACE)

if (WITH_GSSAPI AND NOT GSSAPI_FOUND)
    set(WITH_GSSAPI 0)
endif (WITH_GSSAPI AND NOT GSSAPI_FOUND)

# ENDIAN
if (NOT WIN32)
    test_big_endian(WORDS_BIGENDIAN)
endif (NOT WIN32)