Repair vlib API socket server

- Teach vpp_api_test to send/receive API messages over sockets
- Add memfd-based shared memory
- Add api messages to create memfd-based shared memory segments
- vpp_api_test supports both socket and shared memory segment connections
- vpp_api_test pivot from socket to shared memory API messaging
- add socket client support to libvlibclient.so
- dead client reaper sends ping messages, container-friendly
- dead client reaper falls back to kill (<pid>, 0) live checking
  if e.g. a python app goes silent for tens of seconds
- handle ping messages in python client support code
- teach show api ring about pairwise shared-memory segments
- fix ip probing of already resolved destinations (VPP-998)

We'll need this work to implement proper host-stack client isolation

Change-Id: Ic23b65f75c854d0393d9a2e9d6b122a9551be769
Signed-off-by: Dave Barach <dave@barachs.net>
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Signed-off-by: Florin Coras <fcoras@cisco.com>

2 files changed, 10 insertions, 1 deletions

diff --git a/src/vnet/lisp-cp/control.c b/src/vnet/lisp-cp/control.c
index 0d6d453de00..d09be405011 100644
--- a/src/vnet/lisp-cp/control.c
+++ b/src/vnet/lisp-cp/control.c
@@ -1380,6 +1380,7 @@ vnet_lisp_del_mapping (gid_address_t * eid, u32 * res_map_index)
   mapping_t *old_map;
   u32 mi;
 
+  memset (ls_args, 0, sizeof (ls_args[0]));
   memset (m_args, 0, sizeof (m_args[0]));
   if (res_map_index)
     res_map_index[0] = ~0;
@@ -1784,6 +1785,7 @@ get_locator_set_index (vnet_lisp_add_del_locator_set_args_t * a, uword * p)
   /* find locator-set */
   if (a->local)
     {
+      ASSERT (a->name);
       p = hash_get_mem (lcm->locator_set_index_by_name, a->name);
     }
   else
diff --git a/src/vnet/lisp-cp/lisp_api.c b/src/vnet/lisp-cp/lisp_api.c
index f7c41971061..3053611c611 100644
--- a/src/vnet/lisp-cp/lisp_api.c
+++ b/src/vnet/lisp-cp/lisp_api.c
@@ -128,6 +128,7 @@ vl_api_lisp_add_del_locator_set_t_handler (vl_api_lisp_add_del_locator_set_t *
 
   memset (a, 0, sizeof (a[0]));
 
+  mp->locator_set_name[63] = 0;
   locator_name = format (0, "%s", mp->locator_set_name);
 
   a->name = locator_name;
@@ -182,6 +183,7 @@ vl_api_lisp_add_del_locator_t_handler (vl_api_lisp_add_del_locator_t * mp)
   locator.local = 1;
   vec_add1 (locators, locator);
 
+  mp->locator_set_name[63] = 0;
   locator_name = format (0, "%s", mp->locator_set_name);
 
   a->name = locator_name;
@@ -248,6 +250,7 @@ vl_api_lisp_add_del_local_eid_t_handler (vl_api_lisp_add_del_local_eid_t * mp)
   if (rv)
     goto out;
 
+  mp->locator_set_name[63] = 0;
   name = format (0, "%s", mp->locator_set_name);
   p = hash_get_mem (lcm->locator_set_index_by_name, name);
   if (!p)
@@ -476,6 +479,7 @@ static void
   u8 *locator_set_name = NULL;
   vnet_lisp_add_del_mreq_itr_rloc_args_t _a, *a = &_a;
 
+  mp->locator_set_name[63] = 0;
   locator_set_name = format (0, "%s", mp->locator_set_name);
 
   a->is_add = mp->is_add;
@@ -510,6 +514,7 @@ static void
   if (!mp->is_add)
     {
       vnet_lisp_add_del_adjacency_args_t _a, *a = &_a;
+      memset (a, 0, sizeof (*a));
       gid_address_copy (&a->reid, eid);
       a->is_add = 0;
       rv = vnet_lisp_add_del_adjacency (a);
@@ -533,7 +538,9 @@ static void
       rv = vnet_lisp_add_mapping (m_args, rlocs, NULL, NULL);
     }
   else
-    rv = vnet_lisp_del_mapping (eid, NULL);
+    {
+      rv = vnet_lisp_del_mapping (eid, NULL);
+    }
 
   if (mp->del_all)
     vnet_lisp_clear_all_remote_adjacencies ();