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
|
AC_DEFUN([SUDO_CHECK_OPENSSL], [
openssl_missing=no
if test "${enable_openssl-no}" != no; then
# Use pkg-config to find the openssl cflags and libs if possible.
if test "$enable_openssl" != "yes" -a "$enable_openssl" != "maybe"; then
PKG_CONFIG_LIBDIR=
for d in ${enable_openssl}/*/pkgconfig; do
if test -d "$d"; then
PKG_CONFIG_LIBDIR="$PKG_CONFIG_LIBDIR:$d"
fi
done
if test -n "$PKG_CONFIG_LIBDIR"; then
PKG_CONFIG_LIBDIR=${PKG_CONFIG_LIBDIR#:}
export PKG_CONFIG_LIBDIR
fi
elif test "$cross_compiling" = "yes" -a -z "$PKG_CONFIG"; then
# Cannot use pkg-config when cross-compiling
PKG_CONFIG=false
fi
: ${PKG_CONFIG='pkg-config'}
pkg_openssl=`printf $enable_openssl_pkgconfig_template "openssl"`
pkg_libcrypto=lib`printf $enable_openssl_pkgconfig_template "crypto"`
if $PKG_CONFIG --exists "$pkg_openssl >= 1.0.1" >/dev/null 2>&1; then
AC_DEFINE(HAVE_OPENSSL)
if test "$enable_openssl" = "maybe"; then
enable_openssl=yes
fi
# Check whether --static is needed (don't assume name of ssl lib)
# There may be dependent libraries or -pthread.
O_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS `$PKG_CONFIG --libs-only-L $pkg_openssl`"
libssl="`$PKG_CONFIG --libs-only-l $pkg_openssl | sed 's/^ *-l//'`"
libssl_extra="`echo $libssl | sed 's/^[[^ ]]* *//'`"
libssl="`echo $libssl | sed 's/ .*//'`"
AC_CHECK_LIB([$libssl], [SSL_new], [STATIC=""], [STATIC="--static"], [$libssl_extra])
LDFLAGS="$O_LDFLAGS"
# Use pkg-config to determine OpenSSL libs and cflags
for f in `$PKG_CONFIG $STATIC --libs $pkg_openssl`; do
case "$f" in
-L*)
f="${f#-L}"
SUDO_APPEND_LIBPATH([LIBTLS], [$f])
;;
*)
AX_APPEND_FLAG([$f], [LIBTLS])
;;
esac
done
if $PKG_CONFIG --exists $pkg_libcrypto >/dev/null 2>&1; then
# Use OpenSSL's sha2 functions if possible (don't assume name of crypto)
O_LDFLAGS="$LDFLAGS"
libcrypto=
libcrypto_extra=
for f in `$PKG_CONFIG $STATIC --libs $pkg_libcrypto`; do
case "$f" in
-l*)
if test -z "$libcrypto"; then
libcrypto="${f#-l}"
else
libcrypto_extra="$libcrypto_extra $f"
fi
;;
*)
AX_APPEND_FLAG([$f], [LDFLAGS])
;;
esac
done
AC_CHECK_LIB([$libcrypto], [EVP_MD_CTX_new], [DIGEST=digest_openssl.lo], [], [$libcrypto_extra])
LDFLAGS="$O_LDFLAGS"
# Use pkg-config to determine libcrypto libs and cflags
for f in `$PKG_CONFIG $STATIC --libs $pkg_libcrypto`; do
case "$f" in
-L*)
f="${f#-L}"
SUDO_APPEND_LIBPATH([LIBCRYPTO], [$f])
;;
*)
AX_APPEND_FLAG([$f], [LIBCRYPTO])
;;
esac
done
else
# No separate pkg config for libcrypto
LIBCRYPTO="$LIBTLS"
LIBCRYPTO_R="$LIBTLS_R"
fi
for f in `$PKG_CONFIG --cflags-only-I $pkg_openssl`; do
AX_APPEND_FLAG([$f], [CPPFLAGS])
done
else
# No pkg-config file present, try to do it manually
O_LDFLAGS="$LDFLAGS"
if test "$enable_openssl" != "yes" -a "$enable_openssl" != "maybe"; then
SUDO_APPEND_LIBPATH(LDFLAGS, [${enable_openssl}/lib])
fi
AC_CHECK_LIB([ssl], [SSL_new], [
# Check OPENSSL_VERSION_NUMBER in headers
O_CPPFLAGS="$CPPFLAGS"
if test "$enable_openssl" != "yes" -a "$enable_openssl" != "maybe"; then
# Note: we only reset CPPFLAGS on failure
AX_APPEND_FLAG([-I${enable_openssl}/include], [CPPFLAGS])
fi
AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[#include <openssl/opensslv.h>
#if !defined(OPENSSL_VERSION_NUMBER) || OPENSSL_VERSION_NUMBER < 0x1000100fL
#error "OpenSSL too old"
#endif
]])], [
# OpenSSL >= 1.0.1 detected, use it.
AC_DEFINE(HAVE_OPENSSL)
if test "$enable_openssl" != "yes" -a "$enable_openssl" != "maybe"; then
SUDO_APPEND_LIBPATH(LIBCRYPTO, [${enable_openssl}/lib])
SUDO_APPEND_LIBPATH(LIBTLS, [${enable_openssl}/lib])
else
enable_openssl=yes
fi
LIBCRYPTO="${LIBCRYPTO} -lcrypto"
LIBTLS="${LIBTLS} -lssl -lcrypto"
# Use OpenSSL's sha2 functions if possible
AC_CHECK_LIB([crypto], [EVP_MD_CTX_new], [
DIGEST=digest_openssl.lo
])
], [
# OpenSSL < 1.0.1 detected, ignore it.
if test "$enable_openssl" = "maybe"; then
AC_MSG_WARN([OpenSSL too old (1.0.1 or higher required), Sudo logsrv connections will not be encrypted.])
openssl_missing=yes
enable_openssl=no
else
AC_MSG_ERROR([OpenSSL too old (1.0.1 or higher required).])
fi
CPPFLAGS="$O_CPPFLAGS"
])
], [
if test "$enable_openssl" = "maybe"; then
openssl_missing=yes
enable_openssl=no
else
AC_MSG_ERROR([OpenSSL development libraries not found.])
fi
], [-lcrypto])
LDFLAGS="$O_LDFLAGS"
fi
if test "$enable_openssl" != "yes" -a "$enable_openssl" != "maybe"; then
unset PKG_CONFIG_LIBDIR
fi
fi
#
# Note that enable_openssl may be reset above.
#
if test "${enable_openssl-no}" != no; then
OLIBS="$LIBS"
LIBS="$LIBS $LIBTLS"
AC_CHECK_FUNCS([X509_STORE_CTX_get0_cert ASN1_STRING_get0_data SSL_CTX_get0_certificate SSL_CTX_set0_tmp_dh_pkey TLS_method])
# SSL_CTX_set_min_proto_version may be a macro
AC_CHECK_DECL([SSL_CTX_set_min_proto_version], [AC_DEFINE(HAVE_SSL_CTX_SET_MIN_PROTO_VERSION)], [], [
AC_INCLUDES_DEFAULT
#include <openssl/ssl.h>
])
# LibreSSL TLS 1.3 support may not be enabled, check for declaration too.
AC_CHECK_FUNC([SSL_CTX_set_ciphersuites], [
AC_CHECK_DECL([SSL_CTX_set_ciphersuites], [AC_DEFINE(HAVE_SSL_CTX_SET_CIPHERSUITES)], [], [
AC_INCLUDES_DEFAULT
#include <openssl/ssl.h>
])
])
LIBS="$OLIBS"
elif test "${enable_wolfssl-no}" != no; then
# Check for OpenSSL compatibility functions in wolfSSL.
# Use pkg-config to find the wolfssl cflags and libs if possible.
if test "$enable_wolfssl" != "yes"; then
PKG_CONFIG_LIBDIR="${enable_wolfssl}/lib/pkgconfig:${enable_wolfssl}/lib64/pkgconfig:${enable_wolfssl}/share/pkgconfig"
export PKG_CONFIG_LIBDIR
elif test "$cross_compiling" = "yes" -a -z "$PKG_CONFIG"; then
# Cannot use pkg-config when cross-compiling
PKG_CONFIG=false
fi
: ${PKG_CONFIG='pkg-config'}
if $PKG_CONFIG --exists wolfssl >/dev/null 2>&1; then
AC_DEFINE(HAVE_OPENSSL)
AC_DEFINE(HAVE_WOLFSSL)
O_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS `$PKG_CONFIG --cflags-only-I wolfssl`"
O_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS `$PKG_CONFIG --libs-only-L wolfssl`"
# Check whether --static is needed
libssl="`$PKG_CONFIG --libs-only-l wolfssl | sed 's/^ *-l//'`"
libssl_extra=`echo $libssl | sed 's/^[[^ ]]* *//'`
libssl=`echo $libssl | sed 's/ .*//'`
AC_CHECK_LIB([$libssl], [wolfSSL_new], [STATIC=""], [STATIC="--static"], [$libssl_extra])
# Use wolfSSL's sha2 functions if possible
AC_CHECK_DECL([EVP_MD_CTX_new], [DIGEST=digest_openssl.lo], [], [
AC_INCLUDES_DEFAULT
#include <wolfssl/options.h>
#include <wolfssl/openssl/evp.h>
])
CPPFLAGS="$O_CPPFLAGS"
LDFLAGS="$O_LDFLAGS"
# Use pkg-config to determine wolfSSL libs and cflags
for f in `$PKG_CONFIG $STATIC --libs wolfssl`; do
case "$f" in
-L*)
f="${f#-L}"
SUDO_APPEND_LIBPATH([LIBTLS], [$f])
;;
*)
AX_APPEND_FLAG([$f], [LIBTLS])
;;
esac
done
# No separate pkg config for libcrypto
LIBCRYPTO="$LIBTLS"
LIBCRYPTO_R="$LIBTLS_R"
for f in `$PKG_CONFIG --cflags-only-I wolfssl`; do
AX_APPEND_FLAG([$f], [CPPFLAGS])
# So we find the openssl compat headers under wolfssl
AX_APPEND_FLAG([$f/wolfssl], [CPPFLAGS])
done
if test "$CPPFLAGS" = "$O_CPPFLAGS"; then
# So we find the openssl compat headers under wolfssl (XXX)
AX_APPEND_FLAG([-I/usr/include/wolfssl], [CPPFLAGS])
fi
else
AC_DEFINE(HAVE_OPENSSL)
AC_DEFINE(HAVE_WOLFSSL)
# No pkg-config file present, try to do it manually
if test "$enable_wolfssl" != "yes"; then
SUDO_APPEND_LIBPATH(LIBCRYPTO, [${enable_wolfssl}/lib])
SUDO_APPEND_LIBPATH(LIBTLS, [${enable_wolfssl}/lib])
AX_APPEND_FLAG([-I${enable_wolfssl}/include], [CPPFLAGS])
# So we find the openssl compat headers under wolfssl
AX_APPEND_FLAG([-I${enable_wolfssl}/include/wolfssl], [CPPFLAGS])
else
# So we find the openssl compat headers under wolfssl (XXX)
AX_APPEND_FLAG([-I/usr/include/wolfssl], [CPPFLAGS])
fi
LIBTLS="${LIBTLS} -lwolfssl"
LIBCRYPTO="${LIBCRYPTO} -lwolfssl"
# Use wolfSSL's sha2 functions if possible
AC_CHECK_DECL([EVP_MD_CTX_new], [DIGEST=digest_openssl.lo], [], [
AC_INCLUDES_DEFAULT
#include <wolfssl/options.h>
#include <wolfssl/openssl/evp.h>
])
fi
dnl
dnl Check for specific OpenSSL API compatibility macros
dnl
AC_CHECK_DECL([X509_STORE_CTX_get0_cert], [AC_DEFINE(HAVE_X509_STORE_CTX_GET0_CERT)], [], [
AC_INCLUDES_DEFAULT
#include <wolfssl/options.h>
#include <wolfssl/openssl/x509.h>
])
AC_CHECK_DECL([ASN1_STRING_get0_data], [AC_DEFINE(HAVE_ASN1_STRING_GET0_DATA)], [], [
AC_INCLUDES_DEFAULT
#include <wolfssl/options.h>
#include <wolfssl/openssl/asn1.h>
])
AC_CHECK_DECL([SSL_CTX_get0_certificate], [AC_DEFINE(HAVE_SSL_CTX_GET0_CERTIFICATE)], [], [
AC_INCLUDES_DEFAULT
#include <wolfssl/options.h>
#include <wolfssl/openssl/ssl.h>
])
AC_CHECK_DECL([SSL_CTX_set0_tmp_dh_pkey], [AC_DEFINE(HAVE_SSL_CTX_SET0_TMP_DH_PKEY)], [], [
AC_INCLUDES_DEFAULT
#include <wolfssl/options.h>
#include <wolfssl/openssl/ssl.h>
])
AC_CHECK_DECL([TLS_method], [AC_DEFINE(HAVE_TLS_METHOD)], [], [
AC_INCLUDES_DEFAULT
#include <wolfssl/options.h>
#include <wolfssl/openssl/ssl.h>
])
AC_CHECK_DECL([SSL_CTX_set_min_proto_version], [AC_DEFINE(HAVE_SSL_CTX_SET_MIN_PROTO_VERSION)], [], [
AC_INCLUDES_DEFAULT
#include <wolfssl/options.h>
#include <wolfssl/openssl/ssl.h>
])
AC_CHECK_DECL([SSL_CTX_set_ciphersuites], [AC_DEFINE(HAVE_SSL_CTX_SET_CIPHERSUITES)], [], [
AC_INCLUDES_DEFAULT
#include <wolfssl/options.h>
#include <wolfssl/openssl/ssl.h>
])
fi
])
|
