Expose API to calculate the MD5 hash

2 files changed, 13 insertions, 0 deletions

diff --git a/src/include/ndpi_api.h b/src/include/ndpi_api.h
index 7ad734e85..669f59dda 100644
--- a/src/include/ndpi_api.h
+++ b/src/include/ndpi_api.h
@@ -855,6 +855,8 @@ extern "C" {
 		     ndpi_protocol l7_protocol,
 		     ndpi_serializer *serializer);
 
+  void ndpi_md5(const u_char *data, size_t data_len, u_char hash[16]);
+
   /* ptree (trie) API */
   ndpi_ptree_t* ndpi_ptree_create(void);
   int ndpi_ptree_insert(ndpi_ptree_t *tree, const ndpi_ip_addr_t *addr, u_int8_t bits, uint user_data);
diff --git a/src/lib/ndpi_main.c b/src/lib/ndpi_main.c
index e7172a589..572c2a736 100644
--- a/src/lib/ndpi_main.c
+++ b/src/lib/ndpi_main.c
@@ -48,6 +48,7 @@
 #include "ndpi_content_match.c.inc"
 #include "third_party/include/ndpi_patricia.h"
 #include "third_party/include/ht_hash.h"
+#include "third_party/include/ndpi_md5.h"
 
 /* stun.c */
 extern u_int32_t get_stun_lru_key(struct ndpi_flow_struct *flow, u_int8_t rev);
@@ -6711,3 +6712,13 @@ int ndpi_ptree_match_addr(ndpi_ptree_t *tree, const ndpi_ip_addr_t *addr, uint *
 
   return(-1);
 }
+
+/* ******************************************************************** */
+
+void ndpi_md5(const u_char *data, size_t data_len, u_char hash[16]) {
+  ndpi_MD5_CTX ctx;
+
+  ndpi_MD5Init(&ctx);
+  ndpi_MD5Update(&ctx, data, data_len);
+  ndpi_MD5Final(hash, &ctx);
+}