temp: test the span flag

Author: aidangarske

.github/workflows/diag.yml

@@ -36,7 +36,7 @@ jobs:
             --enable-dtls-mtu --enable-earlydata --enable-session-ticket \
             --enable-dtlscid --enable-opensslextra --enable-ipv6 \
             --enable-static --enable-shared --enable-debug \
-            CFLAGS="-DWOLFSSL_DTLS13_NO_HRR_ON_RESUME -g" >/dev/null
+            CFLAGS="-DWOLFSSL_DTLS13_NO_HRR_ON_RESUME -DWOLFSSL_DTLS_RECORDS_CAN_SPAN_DATAGRAMS -g" >/dev/null
           make -j"$(nproc)" >/dev/null && make install >/dev/null
           echo built
 
@@ -60,19 +60,22 @@ jobs:
           grep -v 'would read block' /tmp/c.out | head -12
           exit $rc
 
-      - name: memory-bio-dtls -- why are records dropped on dtls13
+      - name: memory-bio-dtls -- does the span flag fix dtls13
         if: always()
         run: |
           cd dtls
           export LD_LIBRARY_PATH=/tmp/inst/lib
-          perl -0pi -e 's/#if 0\n(\s*wolfSSL_Debugging_ON)/#if 1\n$1/' memory-bio-dtls.c
-          gcc -g -O0 -o /tmp/mb13 memory-bio-dtls.c -I/tmp/inst/include \
+          gcc -g -o /tmp/mb13 memory-bio-dtls.c -I/tmp/inst/include \
             -L/tmp/inst/lib -lwolfssl -lpthread -lm || exit 1
-          timeout 8 /tmp/mb13 > /tmp/o13.txt 2>&1
-          echo "rc=$?"
-          echo "=== the 2 Dropping lines, with 6 lines of context each:"
-          grep -n -B6 -A2 -i 'Dropping' /tmp/o13.txt | head -40
-          echo "=== cookie lines:"
-          grep -n -i 'cookie' /tmp/o13.txt | head -8
-          echo "=== everything between the last BIO write and the spin:"
-          awk '/BIO_MEMORY_write/{n=NR} {a[NR]=$0} END{for(i=n;i<n+30 && i<=NR;i++) print a[i]}' /tmp/o13.txt
+          sed 's/#ifdef WOLFSSL_DTLS13/#if 0/' memory-bio-dtls.c > /tmp/mb12.c
+          gcc -g -o /tmp/mb12 /tmp/mb12.c -I/tmp/inst/include \
+            -L/tmp/inst/lib -lwolfssl -lpthread -lm || exit 1
+          bad=0
+          for v in 13 12; do
+            timeout 15 /tmp/mb$v > /tmp/o$v.txt 2>&1
+            rc=$?
+            echo "=== DTLS 1.$v : rc=$rc (0=WORKS)"
+            head -6 /tmp/o$v.txt
+            [ $rc -eq 0 ] || bad=1
+          done
+          exit $bad