lib: On shutdown, disable snmp from working

When shutting down ensure that any daemon operating with snmp tells it to stop operating so no more data is sent. Signed-off-by: Donald Sharp <[email protected]>
dgsudharsan · Dec 15, 2022 · 6f83bbd · 6f83bbd
1 parent 2fcd46f
commit 6f83bbd
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diff --git a/lib/agentx.c b/lib/agentx.c
@@ -32,6 +32,8 @@
 #include "linklist.h"
 #include "lib/version.h"
 #include "lib_errors.h"
+#include "hook.h"
+#include "libfrr.h"
 #include "xref.h"
 
 XREF_SETUP();
@@ -245,6 +247,13 @@ DEFUN (no_agentx,
 	return CMD_WARNING_CONFIG_FAILED;
 }
 
+static int smux_disable(void)
+{
+	agentx_enabled = false;
+
+	return 0;
+}
+
 bool smux_enabled(void)
 {
 	return agentx_enabled;
@@ -264,6 +273,8 @@ void smux_init(struct thread_master *tm)
 	install_node(&agentx_node);
 	install_element(CONFIG_NODE, &agentx_enable_cmd);
 	install_element(CONFIG_NODE, &no_agentx_cmd);
+
+	hook_register(frr_early_fini, smux_disable);
 }
 
 void smux_agentx_enable(void)

diff --git a/lib/smux.h b/lib/smux.h
@@ -109,6 +109,9 @@ struct index_oid {
 
 #define SNMP_IP6ADDRESS(V) (*var_len = sizeof(struct in6_addr), (uint8_t *)&V)
 
+/*
+ * Check to see if snmp is enabled or not
+ */
 extern bool smux_enabled(void);
 
 extern void smux_init(struct thread_master *tm);