diff --git a/dpid/dpid.cc b/dpid/dpid.cc
index d4edff2..1153d68 100644
--- a/dpid/dpid.cc
+++ b/dpid/dpid.cc
@@ -19,6 +19,9 @@
 /*! \file
  * Main functions to set-up dpi information and to initialise sockets
  */
+#include <memory>
+#include <vector>
+
 #include <errno.h>
 #include <stdlib.h>             /* for exit */
 #include <fcntl.h>              /* for F_SETFD, F_GETFD, FD_CLOEXEC */
@@ -45,6 +48,8 @@ using namespace std::literals::string_literals;
 
 #define QUEUE 5
 
+struct service;
+
 volatile sig_atomic_t caught_sigchld = 0;
 char *SharedKey = NULL;
 
@@ -92,16 +97,17 @@ void free_plugin_list(struct dp **dpi_attr_list_ptr, int numdpis)
 
 /*! Free memory used by the services list
  */
-void free_services_list(Dlist *s_list)
+void free_services_list(std::vector< service * > *s_list)
 {
    int i = 0;
    struct service *s;
 
-   for (i=0; i < dList_length(s_list) ; i++) {
-      s = reinterpret_cast< service * >( dList_nth_data(s_list, i) );
+   for (i=0; i < s_list->size() ; i++) {
+      s = s_list->at( i );
       dFree(s->name);
+      delete s;
    }
-   dList_free(s_list);
+   delete s_list;
 }
 
 /*! Signal handler for SIGINT, SIGQUIT, and SIGTERM. Calls cleanup
@@ -449,7 +455,7 @@ static int services_alpha_comp(const struct service *s1,
  * \li Returns number of available services on success
  * \li -1 on failure
  */
-int fill_services_list(struct dp *attlist, int numdpis, Dlist **services_list)
+int fill_services_list(struct dp *attlist, int numdpis, std::vector< service * > **services_list)
 {
    FILE *dpidrc_stream;
    char *p, *line = NULL, *service, *path;
@@ -494,7 +500,7 @@ int fill_services_list(struct dp *attlist, int numdpis, Dlist **services_list)
       fclose(dpidrc_stream);
       return -1;
    }
-   *services_list = dList_new(8);
+   *services_list = std::make_unique< std::vector< struct service * > >().release();
 
    /* dpidrc parser loop */
    for (;(line = dGetline_unsafe(dpidrc_stream)) != NULL; dFree(line)) {
@@ -513,12 +519,12 @@ int fill_services_list(struct dp *attlist, int numdpis, Dlist **services_list)
       if (strcmp(service, "dpi_dir") == 0)
          continue;
 
-      s = dNew(struct service, 1);
+      s = std::make_unique< struct service >().release();
       /* init services list entry */
       s->name = dStrdup(service);
       s->dp_index = -1;
 
-      dList_append(*services_list, s);
+      (*services_list)->push_back( s );
       /* search the dpi for a service by its path */
       for (i = 0; i < numdpis; i++)
           if ((p = strstr(attlist[i].path, path)) && *(p - 1) == '/' &&
@@ -530,13 +536,13 @@ int fill_services_list(struct dp *attlist, int numdpis, Dlist **services_list)
    }
    fclose(dpidrc_stream);
 
-   dList_sort(*services_list, (dCompareFunc)services_alpha_comp);
+   std::sort( begin( **services_list ), end( **services_list ), services_alpha_comp );
 
    dFree(dpidrc);
    dFree(sys_dpidir);
    dFree(user_dpidir);
 
-   return (dList_length(*services_list));
+   return (*services_list)->size();
 }
 
 /*
@@ -888,9 +894,11 @@ void send_sockport(int sock_fd, char *dpi_tag, struct dp *dpi_attr_list)
 
    dReturn_if_fail((dpi_id = get_message(sock_fd, dpi_tag)) != NULL);
 
-   serv = reinterpret_cast< service * >( dList_find_custom(services_list,dpi_id,(dCompareFunc)service_match) );
+   auto found= std::find_if( begin( *services_list ), end( *services_list ),
+         [dpi_id]( const auto &service ){  return 0 == service_match( service, dpi_id ); } );
+   serv= found == end( *services_list ) ? nullptr : *found;
 
-   if (serv == NULL || (i = serv->dp_index) == -1)
+   if (serv == nullptr || (i = serv->dp_index) == -1)
       for (i = 0; i < numdpis; i++)
          if (!strncmp(dpi_attr_list[i].id, dpi_id,
                       dpi_attr_list[i].id - strchr(dpi_attr_list[i].id, '.')))
diff --git a/dpid/dpid.hh b/dpid/dpid.hh
index b40ff9f..024005d 100644
--- a/dpid/dpid.hh
+++ b/dpid/dpid.hh
@@ -5,6 +5,8 @@
 #ifndef DPID_H
 #define DPID_H
 
+#include <vector>
+
 #ifdef __cplusplus
 extern "C"
 {
@@ -63,7 +65,7 @@ extern int numsocks;
 extern struct dp *dpi_attr_list;
 
 /*! service served for each plugin  */
-extern Dlist *services_list;
+extern std::vector< service * > *services_list;
 
 /*! Set of sockets watched for connections */
 extern fd_set sock_set;
@@ -79,7 +81,7 @@ void free_dpi_attr(struct dp *dpi_attr);
 
 void free_plugin_list(struct dp **dpi_attr_list_ptr, int numdpis);
 
-void free_services_list(Dlist *s_list);
+void free_services_list(std::vector< service * > *s_list);
 
 enum file_type get_file_type(char *file_name);
 
@@ -89,7 +91,7 @@ int register_service(struct dp *dpi_attr, char *service);
 
 int register_all(struct dp **attlist);
 
-int fill_services_list(struct dp *attlist, int numdpis, Dlist **services_list);
+int fill_services_list(struct dp *attlist, int numdpis, std::vector< service * > **services_list);
 
 int init_ids_srs_socket(void);
 
diff --git a/dpid/main.cc b/dpid/main.cc
index 1ca1cea..5f33cb0 100644
--- a/dpid/main.cc
+++ b/dpid/main.cc
@@ -46,7 +46,7 @@ char *srs_name;
 int numdpis;
 fd_set sock_set;
 struct dp *dpi_attr_list;
-Dlist *services_list;
+std::vector< service * > *services_list;
 int numsocks;
 int srs_fd;