pimd: Implementation of show ip pim bsr command

Command to display current bsr, last received bsm ts, bsr uptime

Sw3# sh ip pim bsr
PIMv2 Bootstrap information
Current preferred BSR address: 30.0.0.100
Priority        Fragment-Tag       State           UpTime
  0               6390            ACCEPT_PREFERRED    91:26:24
Last BSM seen: 00:00:37

Signed-off-by: Saravanan K <saravanank@vmware.com>

diff --git a/pimd/pim_cmd.c b/pimd/pim_cmd.c
index 6308189eafdeaa6e305e30ab97af53667f210303..a2b6d3d1674ba2331b589a2c116eb2c571933530 100644 (file)
--- a/pimd/pim_cmd.c
+++ b/pimd/pim_cmd.c
@@ -3184,6 +3184,82 @@ static void igmp_show_source_retransmission(struct pim_instance *pim,
        }                         /* scan interfaces */
 }
 
+static void pim_show_bsr(struct pim_instance *pim,
+                        struct vty *vty,
+                        bool uj)
+{
+       char uptime[10];
+       char last_bsm_seen[10];
+       time_t now;
+       char bsr_state[20];
+       char bsr_str[PREFIX_STRLEN];
+       json_object *json = NULL;
+
+       vty_out(vty, "PIMv2 Bootstrap information\n");
+
+       if (pim->global_scope.current_bsr.s_addr == INADDR_ANY) {
+               strncpy(bsr_str, "0.0.0.0", sizeof(bsr_str));
+               pim_time_uptime(uptime, sizeof(uptime),
+                               pim->global_scope.current_bsr_first_ts);
+               pim_time_uptime(last_bsm_seen, sizeof(last_bsm_seen),
+                               pim->global_scope.current_bsr_last_ts);
+       }
+
+       else {
+               pim_inet4_dump("<bsr?>", pim->global_scope.current_bsr,
+                              bsr_str, sizeof(bsr_str));
+               now = pim_time_monotonic_sec();
+               pim_time_uptime(uptime, sizeof(uptime),
+                               (now - pim->global_scope.current_bsr_first_ts));
+               pim_time_uptime(last_bsm_seen, sizeof(last_bsm_seen),
+                               now - pim->global_scope.current_bsr_last_ts);
+       }
+
+       switch (pim->global_scope.state) {
+       case NO_INFO:
+               strncpy(bsr_state, "NO_INFO", sizeof(bsr_state));
+               break;
+       case ACCEPT_ANY:
+               strncpy(bsr_state, "ACCEPT_ANY", sizeof(bsr_state));
+               break;
+       case ACCEPT_PREFERRED:
+               strncpy(bsr_state, "ACCEPT_PREFERRED", sizeof(bsr_state));
+               break;
+       default:
+               strncpy(bsr_state, "", sizeof(bsr_state));
+       }
+
+       if (uj) {
+               json = json_object_new_object();
+               json_object_string_add(json, "bsr", bsr_str);
+               json_object_int_add(json, "priority",
+                                   pim->global_scope.current_bsr_prio);
+               json_object_int_add(json, "fragment_tag",
+                                   pim->global_scope.bsm_frag_tag);
+               json_object_string_add(json, "state", bsr_state);
+               json_object_string_add(json, "upTime", uptime);
+               json_object_string_add(json, "last_bsm_seen", last_bsm_seen);
+       }
+
+       else {
+               vty_out(vty, "Current preferred BSR address: %s\n", bsr_str);
+               vty_out(vty,
+                       "Priority        Fragment-Tag       State           UpTime\n");
+               vty_out(vty, "  %-12d    %-12d    %-13s    %7s\n",
+                       pim->global_scope.current_bsr_prio,
+                       pim->global_scope.bsm_frag_tag,
+                       bsr_state,
+                       uptime);
+               vty_out(vty, "Last BSM seen: %s\n", last_bsm_seen);
+       }
+
+       if (uj) {
+               vty_out(vty, "%s\n", json_object_to_json_string_ext(
+                                            json, JSON_C_TO_STRING_PRETTY));
+               json_object_free(json);
+       }
+}
+
 static void clear_igmp_interfaces(struct pim_instance *pim)
 {
        struct interface *ifp;
@@ -5761,6 +5837,27 @@ DEFUN (show_ip_pim_group_type,
        return CMD_SUCCESS;
 }
 
+DEFUN (show_ip_pim_bsr,
+       show_ip_pim_bsr_cmd,
+       "show ip pim bsr [json]",
+       SHOW_STR
+       IP_STR
+       PIM_STR
+       "boot-strap router information\n"
+       JSON_STR)
+{
+       int idx = 2;
+       struct vrf *vrf = pim_cmd_lookup_vrf(vty, argv, argc, &idx);
+       bool uj = use_json(argc, argv);
+
+       if (!vrf)
+               return CMD_WARNING;
+
+       pim_show_bsr(vrf->info, vty, uj);
+
+       return CMD_SUCCESS;
+}
+
 DEFUN (ip_ssmpingd,
        ip_ssmpingd_cmd,
        "ip ssmpingd [A.B.C.D]",
@@ -9446,6 +9543,7 @@ void pim_cmd_init(void)
        install_element(VIEW_NODE, &show_ip_pim_upstream_rpf_cmd);
        install_element(VIEW_NODE, &show_ip_pim_rp_cmd);
        install_element(VIEW_NODE, &show_ip_pim_rp_vrf_all_cmd);
+       install_element(VIEW_NODE, &show_ip_pim_bsr_cmd);
        install_element(VIEW_NODE, &show_ip_multicast_cmd);
        install_element(VIEW_NODE, &show_ip_multicast_vrf_all_cmd);
        install_element(VIEW_NODE, &show_ip_mroute_cmd);