child-sa: Add a getter for CHILD_SA install time

diff --git a/src/libcharon/sa/child_sa.c b/src/libcharon/sa/child_sa.c
index 9c3876a94f897a1d25afbd4e07f59aca00340eff..720a585539654b4bc00304b496da9dcc34ed6d95 100644 (file)
--- a/src/libcharon/sa/child_sa.c
+++ b/src/libcharon/sa/child_sa.c
@@ -119,6 +119,11 @@ struct private_child_sa_t {
         */
        time_t expire_time;
 
+       /**
+        * absolute time when SA has been installed
+        */
+       time_t install_time;
+
        /**
         * state of the CHILD_SA
         */
@@ -586,6 +591,12 @@ METHOD(child_sa_t, get_lifetime, time_t,
        return hard ? this->expire_time : this->rekey_time;
 }
 
+METHOD(child_sa_t, get_installtime, time_t,
+       private_child_sa_t *this)
+{
+       return this->install_time;
+}
+
 METHOD(child_sa_t, alloc_spi, u_int32_t,
           private_child_sa_t *this, protocol_id_t protocol)
 {
@@ -1140,6 +1151,7 @@ child_sa_t * child_sa_create(host_t *me, host_t* other,
                        .get_proposal = _get_proposal,
                        .set_proposal = _set_proposal,
                        .get_lifetime = _get_lifetime,
+                       .get_installtime = _get_installtime,
                        .get_usestats = _get_usestats,
                        .get_mark = _get_mark,
                        .has_encap = _has_encap,
@@ -1170,6 +1182,7 @@ child_sa_t * child_sa_create(host_t *me, host_t* other,
                .reqid = config->get_reqid(config),
                .mark_in = config->get_mark(config, TRUE),
                .mark_out = config->get_mark(config, FALSE),
+               .install_time = time_monotonic(NULL),
        );
 
        this->config = config;

diff --git a/src/libcharon/sa/child_sa.h b/src/libcharon/sa/child_sa.h
index ed52d60b136d04cdc77eb206b5e407f27703cdf0..a0c6c357f8ed7219d9bf68846d8f2843df9fea5b 100644 (file)
--- a/src/libcharon/sa/child_sa.h
+++ b/src/libcharon/sa/child_sa.h
@@ -264,6 +264,13 @@ struct child_sa_t {
         */
        time_t (*get_lifetime)(child_sa_t *this, bool hard);
 
+       /**
+        * Get the absolute time when this SA has been installed.
+        *
+        * @return                      monotonic absolute install time
+        */
+       time_t (*get_installtime)(child_sa_t *this);
+
        /**
         * Get last use time and the number of bytes processed.
         *