fix: porting the code to ubuntu 24.04 with llvm 18 and libssl 3.0

Author: laborant

openssl-tracer/Makefile

@@ -15,7 +15,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 openssl_tracer: openssl_tracer.cc probe_deployment.cc
-	clang++ --std=c++17 -o $@ $^ -lbcc
+	clang++ --std=c++17 -o $@ $^ -lbcc -I /usr/lib/llvm-18 -I/usr/include/llvm-18
 
 clean:
 	rm openssl_tracer

openssl-tracer/openssl_tracer.cc

@@ -22,37 +22,38 @@
 #include <iostream>
 #include <streambuf>
 #include <string>
+#include <stdint.h> 
 
 #include "openssl_tracer_types.h"
 #include "probe_deployment.h"
 
 // A probe on entry of SSL_write
 UProbeSpec kSSLWriteEntryProbeSpec{
-    .obj_path = "/usr/lib/x86_64-linux-gnu/libssl.so.1.1",
+    .obj_path = "/usr/lib/x86_64-linux-gnu/libssl.so.3",
     .symbol = "SSL_write",
     .attach_type = BPF_PROBE_ENTRY,
     .probe_fn = "probe_entry_SSL_write",
 };
 
 // A probe on return of SSL_write
 UProbeSpec kSSLWriteRetProbeSpec{
-    .obj_path = "/usr/lib/x86_64-linux-gnu/libssl.so.1.1",
+    .obj_path = "/usr/lib/x86_64-linux-gnu/libssl.so.3",
     .symbol = "SSL_write",
     .attach_type = BPF_PROBE_RETURN,
     .probe_fn = "probe_ret_SSL_write",
 };
 
 // A probe on entry of SSL_read
 UProbeSpec kSSLReadEntryProbeSpec{
-    .obj_path = "/usr/lib/x86_64-linux-gnu/libssl.so.1.1",
+    .obj_path = "/usr/lib/x86_64-linux-gnu/libssl.so.3",
     .symbol = "SSL_read",
     .attach_type = BPF_PROBE_ENTRY,
     .probe_fn = "probe_entry_SSL_read",
 };
 
 // A probe on return of SSL_read
 UProbeSpec kSSLReadRetProbeSpec{
-    .obj_path = "/usr/lib/x86_64-linux-gnu/libssl.so.1.1",
+    .obj_path = "/usr/lib/x86_64-linux-gnu/libssl.so.3",
     .symbol = "SSL_read",
     .attach_type = BPF_PROBE_RETURN,
     .probe_fn = "probe_ret_SSL_read",