Added autoconf option `--enable-tls-sigs'. (#1471)

* Testing more code in CI environments.
 * Added strict option checking for `./configure' in CI environments.

Signed-off-by: Toni Uhlig <matzeton@googlemail.com>

3 files changed, 19 insertions, 10 deletions

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 05c23f659..8fa5655cd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -24,7 +24,7 @@ jobs:
           sudo apt-get install rrdtool librrd-dev
           sudo apt-get install libpcre3-dev libmaxminddb-dev lcov
       - name: Configure
-        run: env CC=gcc CFLAGS='-Werror' ./autogen.sh --enable-debug-messages --enable-code-coverage --with-pcre --with-maxminddb
+        run: env CC=gcc CFLAGS='-Werror' ./autogen.sh --enable-option-checking=fatal --enable-debug-messages --enable-code-coverage --with-pcre --with-maxminddb --enable-tls-sigs
       - name: Build
         run: make all
       - name: Test
@@ -191,19 +191,19 @@ jobs:
       - name: Configure nDPI on Ubuntu
         if: startsWith(matrix.os, 'ubuntu') && startsWith(matrix.arch, 'x86_64') && startsWith(matrix.compiler, 'default-cc')
         run: |
-          env CC=gcc CFLAGS='-Werror' ./autogen.sh --enable-debug-messages ${{ matrix.gcrypt }} ${{ matrix.msan }} ${{ matrix.pcre }} ${{ matrix.maxminddb }}
+          env CC=gcc CFLAGS='-Werror' ./autogen.sh --enable-option-checking=fatal --enable-debug-messages ${{ matrix.gcrypt }} ${{ matrix.msan }} ${{ matrix.pcre }} ${{ matrix.maxminddb }} --enable-tls-sigs
       - name: Configure nDPI on MacOS
         if: startsWith(matrix.os, 'macOS') && startsWith(matrix.arch, 'x86_64') && startsWith(matrix.compiler, 'default-cc')
         run: |
-          env CC=clang CFLAGS='-Werror' ./autogen.sh --enable-debug-messages ${{ matrix.gcrypt }} ${{ matrix.msan }} ${{ matrix.pcre }} ${{ matrix.maxminddb }}
+          env CC=clang CFLAGS='-Werror' ./autogen.sh --enable-option-checking=fatal --enable-debug-messages ${{ matrix.gcrypt }} ${{ matrix.msan }} ${{ matrix.pcre }} ${{ matrix.maxminddb }} --enable-tls-sigs
       - name: Configure nDPI with specified GCC version on Ubuntu
         if: startsWith(matrix.os, 'ubuntu') && startsWith(matrix.arch, 'x86_64') && startsWith(matrix.compiler, 'gcc')
         run: |
-          env CC=${{ matrix.compiler }} CFLAGS='-Werror' ./autogen.sh --enable-debug-messages ${{ matrix.gcrypt }} ${{ matrix.msan }} ${{ matrix.pcre }} ${{ matrix.maxminddb }}
+          env CC=${{ matrix.compiler }} CFLAGS='-Werror' ./autogen.sh --enable-option-checking=fatal --enable-debug-messages ${{ matrix.gcrypt }} ${{ matrix.msan }} ${{ matrix.pcre }} ${{ matrix.maxminddb }} --enable-tls-sigs
       - name: Configure nDPI with specified CLANG on Ubuntu
         if: startsWith(matrix.os, 'ubuntu') && startsWith(matrix.arch, 'x86_64') && startsWith(matrix.compiler, 'clang')
         run: |
-          env CC=${{ matrix.compiler }} CFLAGS='-Werror' ./autogen.sh --enable-debug-messages ${{ matrix.gcrypt }} ${{ matrix.msan }} ${{ matrix.pcre }} ${{ matrix.maxminddb }}
+          env CC=${{ matrix.compiler }} CFLAGS='-Werror' ./autogen.sh --enable-option-checking=fatal --enable-debug-messages ${{ matrix.gcrypt }} ${{ matrix.msan }} ${{ matrix.pcre }} ${{ matrix.maxminddb }} --enable-tls-sigs
       - name: Build nDPI
         if: startsWith(matrix.arch, 'x86_64')
         run: |
@@ -241,7 +241,7 @@ jobs:
       - name: Configure nDPI [Mingw-w64] (runs only on ubuntu jobs)
         if: startsWith(matrix.os, 'ubuntu') && startsWith(matrix.arch, 'x86_64')
         run: |
-          make distclean && ./autogen.sh --host=x86_64-w64-mingw32 ${{ matrix.pcre }} ${{ matrix.maxminddb }}
+          make distclean && ./autogen.sh --enable-option-checking=fatal --host=x86_64-w64-mingw32 ${{ matrix.pcre }} ${{ matrix.maxminddb }} --enable-tls-sigs
       - name: Build nDPI [Mingw-w64] (runs only on ubuntu jobs)
         if: startsWith(matrix.os, 'ubuntu') && startsWith(matrix.arch, 'x86_64')
         run: |
@@ -263,7 +263,7 @@ jobs:
             bash -c
             "apt-get -y update &&
             apt-get -y install git autoconf automake libtool pkg-config gettext libjson-c-dev flex bison libpcap-dev libgcrypt20-dev libpcre3-dev libmaxminddb-dev rrdtool librrd-dev &&
-            env CC=gcc CFLAGS='-Werror' ./autogen.sh --enable-debug-messages ${{ matrix.gcrypt }} ${{ matrix.msan }} ${{ matrix.pcre }} ${{ matrix.maxminddb }} &&
+            env CC=gcc CFLAGS='-Werror' ./autogen.sh --enable-option-checking=fatal --enable-debug-messages ${{ matrix.gcrypt }} ${{ matrix.msan }} ${{ matrix.pcre }} ${{ matrix.maxminddb }} --enable-tls-sigs &&
             make all &&
             make -C example ndpiSimpleIntegration &&
             make -C rrdtool &&
@@ -288,7 +288,7 @@ jobs:
             bash -c
             "apt-get -y update &&
             apt-get -y install git autoconf automake libtool pkg-config gettext libjson-c-dev flex bison libpcap-dev libgcrypt20-dev libpcre3-dev libmaxminddb-dev rrdtool librrd-dev &&
-            env CC=gcc CFLAGS='-Werror' ./autogen.sh --enable-debug-messages ${{ matrix.gcrypt }} ${{ matrix.msan }} ${{ matrix.pcre }} ${{ matrix.maxminddb }} &&
+            env CC=gcc CFLAGS='-Werror' ./autogen.sh --enable-option-checking=fatal --enable-debug-messages ${{ matrix.gcrypt }} ${{ matrix.msan }} ${{ matrix.pcre }} ${{ matrix.maxminddb }} --enable-tls-sigs &&
             make all &&
             make -C example ndpiSimpleIntegration &&
             make -C rrdtool &&
@@ -313,7 +313,7 @@ jobs:
             bash -c
             "apt-get -y update &&
             apt-get -y install git autoconf automake libtool pkg-config gettext libjson-c-dev flex bison libpcap-dev libgcrypt20-dev libpcre3-dev libmaxminddb-dev rrdtool librrd-dev &&
-            env CC=gcc CFLAGS='-Werror' ./autogen.sh --enable-debug-messages ${{ matrix.gcrypt }} ${{ matrix.msan }} ${{ matrix.pcre }} ${{ matrix.maxminddb }} &&
+            env CC=gcc CFLAGS='-Werror' ./autogen.sh --enable-option-checking=fatal --enable-debug-messages ${{ matrix.gcrypt }} ${{ matrix.msan }} ${{ matrix.pcre }} ${{ matrix.maxminddb }} --enable-tls-sigs &&
             make all &&
             make -C example ndpiSimpleIntegration &&
             make -C rrdtool &&
diff --git a/configure.ac b/configure.ac
index d10435fa8..51a1cecc5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,6 +17,7 @@ AC_ARG_WITH(sanitizer,     AS_HELP_STRING([--with-sanitizer], [Build with suppor
 AC_ARG_ENABLE(fuzztargets, AS_HELP_STRING([--enable-fuzztargets], [Enable fuzz targets]),[enable_fuzztargets=$enableval],[enable_fuzztargets=no])
 AC_ARG_ENABLE(code-coverage, AS_HELP_STRING([--enable-code-coverage], [Generate Code Coverage report]))
 AC_ARG_WITH(local-libgcrypt,  AS_HELP_STRING([--with-local-libgcrypt], [Build with libgcrypt (if present) instead of the enclosed gcrypt light]))
+AC_ARG_ENABLE(tls-sigs, AS_HELP_STRING([--enable-tls-sigs], [Enable TLS Client signature algorithm dissection. Rarely used, but requires significantly more memory.]))
 
 AS_IF([test "x$enable_fuzztargets" = "xyes"], [BUILD_FUZZTARGETS=1], [BUILD_FUZZTARGETS=0])
 AM_CONDITIONAL([BUILD_FUZZTARGETS], [test "x$enable_fuzztargets" = "xyes"])
@@ -26,7 +27,7 @@ AS_IF([test "${with_sanitizer+set}" = set],[
   LDFLAGS="${LDFLAGS} -fsanitize=address -fsanitize=undefined -fno-sanitize=alignment -fsanitize=leak"
 ])
 
-AS_IF([test "x$enable_code_coverage" = "xyes"],[
+AS_IF([test "x${enable_code_coverage}" = "xyes"],[
   CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage"
   LDFLAGS="${LDFLAGS} --coverage"
 ])
@@ -110,6 +111,11 @@ if ! test "${with_only_libndpi+set}" = set; then :
     ])
 fi
 
+HANDLE_TLS_SIGS="//"
+AS_IF([test "x${enable_tls_sigs}" = "xyes"],[
+  HANDLE_TLS_SIGS=""
+])
+
 LIBS="$LIBS $JSONC_LIBS"
 CFLAGS="-W -Wall -Wno-unused-parameter -Wno-unused-function $CFLAGS $JSONC_CFLAGS"
 
@@ -309,4 +315,5 @@ AC_SUBST(JSONC_CFLAGS)
 AC_SUBST(JSONC_LIBS)
 AC_SUBST(USE_HOST_LIBGCRYPT)
 AC_SUBST(PCRE_ENABLED)
+AC_SUBST(HANDLE_TLS_SIGS)
 AC_OUTPUT
diff --git a/src/include/ndpi_define.h.in b/src/include/ndpi_define.h.in
index c6eb512ae..13e9962da 100644
--- a/src/include/ndpi_define.h.in
+++ b/src/include/ndpi_define.h.in
@@ -363,6 +363,8 @@ static inline u_int64_t get_u_int64_t(const u_int8_t* X, int O)
 
 #define NDPI_MAX_NUM_TLS_APPL_BLOCKS            8
 
+@HANDLE_TLS_SIGS@#define TLS_HANDLE_SIGNATURE_ALGORITMS 1
+
 #ifdef __APPLE__
 
 #include <libkern/OSByteOrder.h>