Merge pull request FRRouting#291 from AnuradhaKaruppiah/pim-ssm

Pim ssm

pimd/Makefile.am

@@ -53,7 +53,7 @@ libpim_a_SOURCES = \
 	pim_ssmpingd.c pim_int.c pim_rp.c \
 	pim_static.c pim_br.c pim_register.c pim_routemap.c \
 	pim_msdp.c pim_msdp_socket.c pim_msdp_packet.c \
-	pim_jp_agg.c pim_nht.c
+	pim_jp_agg.c pim_nht.c pim_ssm.c
 
 noinst_HEADERS = \
 	pim_memory.h \
@@ -66,7 +66,7 @@ noinst_HEADERS = \
 	pim_igmp_join.h pim_ssmpingd.h pim_int.h pim_rp.h \
 	pim_static.h pim_br.h pim_register.h \
 	pim_msdp.h pim_msdp_socket.h pim_msdp_packet.h pim_nht.h \
-	pim_jp_agg.h
+	pim_jp_agg.h pim_ssm.h
 
 pimd_SOURCES = \
 	pim_main.c $(libpim_a_SOURCES)

pimd/pim_cmd.c

@@ -54,6 +54,7 @@
 #include "pim_rp.h"
 #include "pim_zlookup.h"
 #include "pim_msdp.h"
+#include "pim_ssm.h"
 
 static struct cmd_node pim_global_node = {
   PIM_NODE,
@@ -3598,6 +3599,153 @@ DEFUN (no_ip_pim_rp_prefix_list,
   return pim_no_rp_cmd_worker (vty, argv[4]->arg, NULL, argv[6]->arg);
 }
 
+static int
+pim_ssm_cmd_worker (struct vty *vty, const char *plist)
+{
+  int result = pim_ssm_range_set (VRF_DEFAULT, plist);
+
+  if (result == PIM_SSM_ERR_NONE)
+    return CMD_SUCCESS;
+
+  switch (result)
+    {
+    case PIM_SSM_ERR_NO_VRF:
+      vty_out (vty, "%% VRF doesn't exist%s", VTY_NEWLINE);
+      break;
+    case PIM_SSM_ERR_DUP:
+      vty_out (vty, "%% duplicate config%s", VTY_NEWLINE);
+      break;
+    default:
+      vty_out (vty, "%% ssm range config failed%s", VTY_NEWLINE);
+    }
+
+  return CMD_WARNING;
+}
+
+DEFUN (ip_pim_ssm_prefix_list,
+       ip_pim_ssm_prefix_list_cmd,
+       "ip pim ssm prefix-list WORD",
+       IP_STR
+       "pim multicast routing\n"
+       "Source Specific Multicast\n"
+       "group range prefix-list filter\n"
+       "Name of a prefix-list\n")
+{
+  return pim_ssm_cmd_worker (vty, argv[0]->arg);
+}
+
+DEFUN (no_ip_pim_ssm_prefix_list,
+       no_ip_pim_ssm_prefix_list_cmd,
+       "no ip pim ssm prefix-list",
+       NO_STR
+       IP_STR
+       "pim multicast routing\n"
+       "Source Specific Multicast\n"
+       "group range prefix-list filter\n")
+{
+  return pim_ssm_cmd_worker (vty, NULL);
+}
+
+DEFUN (no_ip_pim_ssm_prefix_list_name,
+       no_ip_pim_ssm_prefix_list_name_cmd,
+       "no ip pim ssm prefix-list WORD",
+       NO_STR
+       IP_STR
+       "pim multicast routing\n"
+       "Source Specific Multicast\n"
+       "group range prefix-list filter\n"
+       "Name of a prefix-list\n")
+{
+  struct pim_ssm *ssm = pimg->ssm_info;
+
+  if (ssm->plist_name && !strcmp(ssm->plist_name, argv[0]->arg))
+    return pim_ssm_cmd_worker (vty, NULL);
+
+  vty_out (vty, "%% pim ssm prefix-list %s doesn't exist%s",
+           argv[0]->arg, VTY_NEWLINE);
+
+  return CMD_WARNING;
+}
+
+static void
+ip_pim_ssm_show_group_range(struct vty *vty, u_char uj)
+{
+  struct pim_ssm *ssm = pimg->ssm_info;
+  const char *range_str = ssm->plist_name?ssm->plist_name:PIM_SSM_STANDARD_RANGE;
+
+  if (uj)
+    {
+      json_object *json;
+      json = json_object_new_object();
+      json_object_string_add(json, "ssmGroups", range_str);
+      vty_out (vty, "%s%s", json_object_to_json_string_ext(json, JSON_C_TO_STRING_PRETTY), VTY_NEWLINE);
+      json_object_free(json);
+    }
+  else
+    vty_out(vty, "SSM group range : %s%s", range_str, VTY_NEWLINE);
+}
+
+DEFUN (show_ip_pim_ssm_range,
+       show_ip_pim_ssm_range_cmd,
+       "show ip pim group-type [json]",
+       SHOW_STR
+       IP_STR
+       PIM_STR
+       "PIM group type\n"
+       "JavaScript Object Notation\n")
+{
+  u_char uj = use_json(argc, argv);
+  ip_pim_ssm_show_group_range(vty, uj);
+
+  return CMD_SUCCESS;
+}
+
+static void
+ip_pim_ssm_show_group_type(struct vty *vty, u_char uj, const char *group)
+{
+  struct in_addr group_addr;
+  const char *type_str;
+  int result;
+
+  result = inet_pton(AF_INET, group, &group_addr);
+  if (result <= 0)
+    type_str = "invalid";
+  else
+    {
+      if (pim_is_group_224_4 (group_addr))
+        type_str = pim_is_grp_ssm (group_addr)?"SSM":"ASM";
+      else
+        type_str = "not-multicast";
+    }
+
+  if (uj)
+    {
+      json_object *json;
+      json = json_object_new_object();
+      json_object_string_add(json, "groupType", type_str);
+      vty_out (vty, "%s%s", json_object_to_json_string_ext(json, JSON_C_TO_STRING_PRETTY), VTY_NEWLINE);
+      json_object_free(json);
+    }
+  else
+    vty_out(vty, "Group type : %s%s", type_str, VTY_NEWLINE);
+}
+
+DEFUN (show_ip_pim_group_type,
+       show_ip_pim_group_type_cmd,
+       "show ip pim group-type A.B.C.D [json]",
+       SHOW_STR
+       IP_STR
+       PIM_STR
+       "multicast group type\n"
+       "group address\n"
+       "JavaScript Object Notation\n")
+{
+  u_char uj = use_json(argc, argv);
+  ip_pim_ssm_show_group_type(vty, uj, argv[0]->arg);
+
+  return CMD_SUCCESS;
+}
+
 DEFUN_HIDDEN (ip_multicast_routing,
               ip_multicast_routing_cmd,
               "ip multicast-routing",
@@ -4292,7 +4440,7 @@ DEFUN (interface_no_ip_pim_drprio,
 }
 
 static int
-pim_cmd_interface_add (struct interface *ifp, enum pim_interface_type itype)
+pim_cmd_interface_add (struct interface *ifp)
 {
   struct pim_interface *pim_ifp = ifp->info;
 
@@ -4306,14 +4454,12 @@ pim_cmd_interface_add (struct interface *ifp, enum pim_interface_type itype)
     PIM_IF_DO_PIM(pim_ifp->options);
   }
 
-  pim_ifp->itype = itype;
   pim_if_addr_add_all(ifp);
   pim_if_membership_refresh(ifp);
   return 1;
 }
 
-
-DEFUN (interface_ip_pim_ssm,
+DEFUN_HIDDEN (interface_ip_pim_ssm,
        interface_ip_pim_ssm_cmd,
        "ip pim ssm",
        IP_STR
@@ -4322,11 +4468,12 @@ DEFUN (interface_ip_pim_ssm,
 {
   VTY_DECLVAR_CONTEXT(interface, ifp);
 
-  if (!pim_cmd_interface_add(ifp, PIM_INTERFACE_SSM)) {
-    vty_out(vty, "Could not enable PIM SSM on interface%s", VTY_NEWLINE);
+  if (!pim_cmd_interface_add(ifp)) {
+    vty_out(vty, "Could not enable PIM SM on interface%s", VTY_NEWLINE);
     return CMD_WARNING;
   }
 
+  vty_out(vty, "WARN: Enabled PIM SM on interface; configure PIM SSM range if needed%s", VTY_NEWLINE);
   return CMD_SUCCESS;
 }
 
@@ -4338,7 +4485,7 @@ DEFUN (interface_ip_pim_sm,
        IFACE_PIM_SM_STR)
 {
   VTY_DECLVAR_CONTEXT(interface, ifp);
-  if (!pim_cmd_interface_add(ifp, PIM_INTERFACE_SM)) {
+  if (!pim_cmd_interface_add(ifp)) {
     vty_out(vty, "Could not enable PIM SM on interface%s", VTY_NEWLINE);
     return CMD_WARNING;
   }
@@ -4374,7 +4521,7 @@ pim_cmd_interface_delete (struct interface *ifp)
   return 1;
 }
 
-DEFUN (interface_no_ip_pim_ssm,
+DEFUN_HIDDEN (interface_no_ip_pim_ssm,
        interface_no_ip_pim_ssm_cmd,
        "no ip pim ssm",
        NO_STR
@@ -6029,6 +6176,9 @@ void pim_cmd_init()
   install_element (CONFIG_NODE, &no_ip_pim_rp_cmd);
   install_element (CONFIG_NODE, &ip_pim_rp_prefix_list_cmd);
   install_element (CONFIG_NODE, &no_ip_pim_rp_prefix_list_cmd);
+  install_element (CONFIG_NODE, &no_ip_pim_ssm_prefix_list_cmd);
+  install_element (CONFIG_NODE, &no_ip_pim_ssm_prefix_list_name_cmd);
+  install_element (CONFIG_NODE, &ip_pim_ssm_prefix_list_cmd);
   install_element (CONFIG_NODE, &ip_pim_register_suppress_cmd);
   install_element (CONFIG_NODE, &no_ip_pim_register_suppress_cmd);
   install_element (CONFIG_NODE, &ip_pim_joinprune_time_cmd);
@@ -6186,6 +6336,8 @@ void pim_cmd_init()
   install_element (VIEW_NODE, &show_ip_msdp_sa_detail_cmd);
   install_element (VIEW_NODE, &show_ip_msdp_sa_sg_cmd);
   install_element (VIEW_NODE, &show_ip_msdp_mesh_group_cmd);
+  install_element (VIEW_NODE, &show_ip_pim_ssm_range_cmd);
+  install_element (VIEW_NODE, &show_ip_pim_group_type_cmd);
   install_element (INTERFACE_NODE, &interface_pim_use_source_cmd);
   install_element (INTERFACE_NODE, &interface_no_pim_use_source_cmd);
 }

pimd/pim_iface.h

@@ -58,11 +58,6 @@ struct pim_iface_upstream_switch {
   struct list *us;
 };
 
-enum pim_interface_type {
-  PIM_INTERFACE_SSM,
-  PIM_INTERFACE_SM
-};
-
 enum pim_secondary_addr_flags {
   PIM_SEC_ADDRF_NONE = 0,
   PIM_SEC_ADDRF_STALE = (1 << 0)
@@ -74,7 +69,6 @@ struct pim_secondary_addr {
 };
 
 struct pim_interface {
-  enum pim_interface_type itype;
   uint32_t       options;                            /* bit vector */
   ifindex_t      mroute_vif_index;
   struct in_addr primary_address; /* remember addr to detect change */

pimd/pim_ifchannel.c

@@ -41,6 +41,7 @@
 #include "pim_macro.h"
 #include "pim_oil.h"
 #include "pim_upstream.h"
+#include "pim_ssm.h"
 
 int
 pim_ifchannel_compare (struct pim_ifchannel *ch1, struct pim_ifchannel *ch2)
@@ -967,6 +968,18 @@ pim_ifchannel_local_membership_add(struct interface *ifp,
   if (!PIM_IF_TEST_PIM(pim_ifp->options))
     return 0;
 
+  /* skip (*,G) ch creation if G is of type SSM */
+  if (sg->src.s_addr == INADDR_ANY)
+    {
+      if (pim_is_grp_ssm (sg->grp))
+        {
+          if (PIM_DEBUG_PIM_EVENTS)
+            zlog_debug("%s: local membership (S,G)=%s ignored as group is SSM",
+                __PRETTY_FUNCTION__, pim_str_sg_dump (sg));
+          return 1;
+        }
+    }
+
   ch = pim_ifchannel_add(ifp, sg, PIM_UPSTREAM_FLAG_MASK_SRC_IGMP);
   if (!ch) {
     return 0;

pimd/pim_main.c

@@ -46,7 +46,6 @@
 #include "pim_zebra.h"
 #include "pim_msdp.h"
 #include "pim_iface.h"
-#include "pim_rp.h"
 
 extern struct host host;
 
@@ -120,8 +119,8 @@ int main(int argc, char** argv, char** envp) {
   pim_vrf_init ();
   access_list_init();
   prefix_list_init ();
-  prefix_list_add_hook (pim_rp_prefix_list_update);
-  prefix_list_delete_hook (pim_rp_prefix_list_update);
+  prefix_list_add_hook (pim_prefix_list_update);
+  prefix_list_delete_hook (pim_prefix_list_update);
 
   pim_route_map_init ();
   pim_init();

pimd/pim_memory.c

@@ -51,3 +51,4 @@ DEFINE_MTYPE(PIMD, PIM_JP_AGG_GROUP,      "PIM JP AGG Group")
 DEFINE_MTYPE(PIMD, PIM_JP_AGG_SOURCE,     "PIM JP AGG Source")
 DEFINE_MTYPE(PIMD, PIM_PIM_INSTANCE,      "PIM global state")
 DEFINE_MTYPE(PIMD, PIM_NEXTHOP_CACHE,     "PIM nexthop cache state")
+DEFINE_MTYPE(PIMD, PIM_SSM_INFO,          "PIM SSM configuration")

pimd/pim_memory.h

@@ -50,5 +50,6 @@ DECLARE_MTYPE(PIM_JP_AGG_GROUP)
 DECLARE_MTYPE(PIM_JP_AGG_SOURCE)
 DECLARE_MTYPE(PIM_PIM_INSTANCE)
 DECLARE_MTYPE(PIM_NEXTHOP_CACHE)
+DECLARE_MTYPE(PIM_SSM_INFO)
 
 #endif /* _QUAGGA_PIM_MEMORY_H */