VPP-524: Add support to API to dump IPsec SPDs

Change-Id: Ief37bef8db9f194fe2a75e0eb223a41bc739bc4f
Signed-off-by: Matthew Smith <mgsmith@netgate.com>

2 files changed, 133 insertions, 1 deletions

diff --git a/vpp/vpp-api/api.c b/vpp/vpp-api/api.c
index c1f826391ce..6e0f27ee3e7 100644
--- a/vpp/vpp-api/api.c
+++ b/vpp/vpp-api/api.c
@@ -458,7 +458,8 @@ _(DELETE_SUBIF, delete_subif)                                           \
 _(L2_INTERFACE_PBB_TAG_REWRITE, l2_interface_pbb_tag_rewrite)           \
 _(PUNT, punt)                                                           \
 _(FLOW_CLASSIFY_SET_INTERFACE, flow_classify_set_interface)             \
-_(FLOW_CLASSIFY_DUMP, flow_classify_dump)
+_(FLOW_CLASSIFY_DUMP, flow_classify_dump)                               \
+_(IPSEC_SPD_DUMP, ipsec_spd_dump)
 
 #define QUOTE_(x) #x
 #define QUOTE(x) QUOTE_(x)
@@ -8747,6 +8748,82 @@ vl_api_flow_classify_dump_t_handler (vl_api_flow_classify_dump_t * mp)
     }
 }
 
+static void
+send_ipsec_spd_details (ipsec_policy_t * p, unix_shared_memory_queue_t * q,
+			u32 context)
+{
+  vl_api_ipsec_spd_details_t *mp;
+
+  mp = vl_msg_api_alloc (sizeof (*mp));
+  memset (mp, 0, sizeof (*mp));
+  mp->_vl_msg_id = ntohs (VL_API_IPSEC_SPD_DETAILS);
+  mp->context = context;
+
+  mp->spd_id = htonl (p->id);
+  mp->priority = htonl (p->priority);
+  mp->is_outbound = p->is_outbound;
+  mp->is_ipv6 = p->is_ipv6;
+  if (p->is_ipv6)
+    {
+      memcpy (mp->local_start_addr, &p->laddr.start.ip6, 16);
+      memcpy (mp->local_stop_addr, &p->laddr.stop.ip6, 16);
+      memcpy (mp->remote_start_addr, &p->raddr.start.ip6, 16);
+      memcpy (mp->remote_stop_addr, &p->raddr.stop.ip6, 16);
+    }
+  else
+    {
+      memcpy (mp->local_start_addr, &p->laddr.start.ip4, 4);
+      memcpy (mp->local_stop_addr, &p->laddr.stop.ip4, 4);
+      memcpy (mp->remote_start_addr, &p->raddr.start.ip4, 4);
+      memcpy (mp->remote_stop_addr, &p->raddr.stop.ip4, 4);
+    }
+  mp->local_start_port = htons (p->lport.start);
+  mp->local_stop_port = htons (p->lport.stop);
+  mp->remote_start_port = htons (p->rport.start);
+  mp->remote_stop_port = htons (p->rport.stop);
+  mp->protocol = p->protocol;
+  mp->policy = p->policy;
+  mp->sa_id = htonl (p->sa_id);
+  mp->bytes = clib_host_to_net_u64 (p->counter.bytes);
+  mp->packets = clib_host_to_net_u64 (p->counter.packets);
+
+  vl_msg_api_send_shmem (q, (u8 *) & mp);
+}
+
+static void
+vl_api_ipsec_spd_dump_t_handler (vl_api_ipsec_spd_dump_t * mp)
+{
+  unix_shared_memory_queue_t *q;
+  ipsec_main_t *im = &ipsec_main;
+  ipsec_policy_t *policy;
+  ipsec_spd_t *spd;
+  uword *p;
+  u32 spd_index;
+#if IPSEC > 0
+  q = vl_api_client_index_to_input_queue (mp->client_index);
+  if (q == 0)
+    return;
+
+  p = hash_get (im->spd_index_by_spd_id, ntohl (mp->spd_id));
+  if (!p)
+    return;
+
+  spd_index = p[0];
+  spd = pool_elt_at_index (im->spds, spd_index);
+
+  pool_foreach (policy, spd->policies, (
+					 {
+					 if (mp->sa_id == ~(0)
+					     || ntohl (mp->sa_id) ==
+					     policy->sa_id)
+					 send_ipsec_spd_details (policy, q,
+								 mp->context);}
+		));
+#else
+  clib_warning ("unimplemented");
+#endif
+}
+
 #define BOUNCE_HANDLER(nn)                                              \
 static void vl_api_##nn##_t_handler (                                   \
     vl_api_##nn##_t *mp)                                                \
diff --git a/vpp/vpp-api/vpe.api b/vpp/vpp-api/vpe.api
index 3ec41abc3b1..67d95034bcc 100644
--- a/vpp/vpp-api/vpe.api
+++ b/vpp/vpp-api/vpe.api
@@ -5293,3 +5293,58 @@ define punt_reply
     i32 retval;
 };
 
+/** \brief Dump ipsec policy database data
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param spd_id - SPD instance id
+    @param sa_id - SA id, optional, set to ~0 to see all policies in SPD
+*/
+define ipsec_spd_dump {
+    u32 client_index;
+    u32 context;
+    u32 spd_id;
+    u32 sa_id;
+};
+
+/** \brief IPsec policy database response
+    @param context - sender context which was passed in the request
+    @param spd_id - SPD instance id
+    @param priority - numeric value to control policy evaluation order
+    @param is_outbound - [1|0] to indicate if direction is [out|in]bound
+    @param is_ipv6 - [1|0] to indicate if address family is ipv[6|4]
+    @param local_start_addr - first address in local traffic selector range
+    @param local_stop_addr - last address in local traffic selector range
+    @param local_start_port - first port in local traffic selector range
+    @param local_stop_port - last port in local traffic selector range
+    @param remote_start_addr - first address in remote traffic selector range
+    @param remote_stop_addr - last address in remote traffic selector range
+    @param remote_start_port - first port in remote traffic selector range
+    @param remote_stop_port - last port in remote traffic selector range
+    @param protocol - traffic selector protocol
+    @param policy - policy action
+    @param sa_id - SA id
+    @param bytes - byte count of packets matching this policy
+    @param packets - count of packets matching this policy
+*/
+
+define ipsec_spd_details {
+    u32 context;
+    u32 spd_id;
+    i32 priority;
+    u8 is_outbound;
+    u8 is_ipv6;
+    u8 local_start_addr[16];
+    u8 local_stop_addr[16];
+    u16 local_start_port;
+    u16 local_stop_port;
+    u8 remote_start_addr[16];
+    u8 remote_stop_addr[16];
+    u16 remote_start_port;
+    u16 remote_stop_port;
+    u8 protocol;
+    u8 policy;
+    u32 sa_id;
+    u64 bytes;
+    u64 packets;
+};
+