kernel: Use a time_t to report use time in query_sa()

src/charon-tkm/src/tkm/tkm_kernel_ipsec.c

@@ -217,7 +217,7 @@ sad_failure:
 METHOD(kernel_ipsec_t, query_sa, status_t,
 	private_tkm_kernel_ipsec_t *this, host_t *src, host_t *dst,
 	u_int32_t spi, u_int8_t protocol, mark_t mark, u_int64_t *bytes,
-	u_int64_t *packets, u_int32_t *time)
+	u_int64_t *packets, time_t *time)
 {
 	return NOT_SUPPORTED;
 }

src/frontends/android/jni/libandroidbridge/kernel/android_ipsec.c

@@ -86,7 +86,7 @@ METHOD(kernel_ipsec_t, update_sa, status_t,
 METHOD(kernel_ipsec_t, query_sa, status_t,
 	private_kernel_android_ipsec_t *this, host_t *src, host_t *dst,
 	u_int32_t spi, u_int8_t protocol, mark_t mark,
-	u_int64_t *bytes, u_int64_t *packets, u_int32_t *time)
+	u_int64_t *bytes, u_int64_t *packets, time_t *time)
 {
 	return NOT_SUPPORTED;
 }

src/libcharon/plugins/kernel_libipsec/kernel_libipsec_ipsec.c

@@ -268,7 +268,7 @@ METHOD(kernel_ipsec_t, update_sa, status_t,
 METHOD(kernel_ipsec_t, query_sa, status_t,
 	private_kernel_libipsec_ipsec_t *this, host_t *src, host_t *dst,
 	u_int32_t spi, u_int8_t protocol, mark_t mark, u_int64_t *bytes,
-	u_int64_t *packets, u_int32_t *time)
+	u_int64_t *packets, time_t *time)
 {
 	return NOT_SUPPORTED;
 }

src/libcharon/plugins/load_tester/load_tester_ipsec.c

@@ -71,7 +71,7 @@ METHOD(kernel_ipsec_t, update_sa, status_t,
 METHOD(kernel_ipsec_t, query_sa, status_t,
 	private_load_tester_ipsec_t *this, host_t *src, host_t *dst,
 	u_int32_t spi, u_int8_t protocol, mark_t mark,
-	u_int64_t *bytes, u_int64_t *packets, u_int32_t *time)
+	u_int64_t *bytes, u_int64_t *packets, time_t *time)
 {
 	return NOT_SUPPORTED;
 }

src/libcharon/sa/child_sa.c

@@ -167,12 +167,12 @@ struct private_child_sa_t {
 	/**
 	 * time of last use in seconds (inbound)
 	 */
-	u_int32_t my_usetime;
+	time_t my_usetime;
 
 	/**
 	 * time of last use in seconds (outbound)
 	 */
-	u_int32_t other_usetime;
+	time_t other_usetime;
 
 	/**
 	 * last number of inbound bytes
@@ -429,7 +429,7 @@ static status_t update_usebytes(private_child_sa_t *this, bool inbound)
 {
 	status_t status = FAILED;
 	u_int64_t bytes, packets;
-	u_int32_t time;
+	time_t time;
 
 	if (inbound)
 	{

src/libhydra/kernel/kernel_interface.c

@@ -208,7 +208,7 @@ METHOD(kernel_interface_t, update_sa, status_t,
 METHOD(kernel_interface_t, query_sa, status_t,
 	private_kernel_interface_t *this, host_t *src, host_t *dst,
 	u_int32_t spi, u_int8_t protocol, mark_t mark,
-	u_int64_t *bytes, u_int64_t *packets, u_int32_t *time)
+	u_int64_t *bytes, u_int64_t *packets, time_t *time)
 {
 	if (!this->ipsec)
 	{

src/libhydra/kernel/kernel_interface.h

@@ -200,12 +200,12 @@ struct kernel_interface_t {
 	 * @param mark			optional mark for this SA
 	 * @param[out] bytes	the number of bytes processed by SA
 	 * @param[out] packets	number of packets processed by SA
-	 * @param[out] time		last time of SA use
+	 * @param[out] time		last (monotonic) time of SA use
 	 * @return				SUCCESS if operation completed
 	 */
 	status_t (*query_sa) (kernel_interface_t *this, host_t *src, host_t *dst,
 						  u_int32_t spi, u_int8_t protocol, mark_t mark,
-						  u_int64_t *bytes, u_int64_t *packets, u_int32_t *time);
+						  u_int64_t *bytes, u_int64_t *packets, time_t *time);
 
 	/**
 	 * Delete a previously installed SA from the SAD.

src/libhydra/kernel/kernel_ipsec.h

@@ -156,12 +156,12 @@ struct kernel_ipsec_t {
 	 * @param mark			optional mark for this SA
 	 * @param[out] bytes	the number of bytes processed by SA
 	 * @param[out] packets	number of packets processed by SA
-	 * @param[out] time		last time of SA use
+	 * @param[out] time		last (monotonic) time of SA use
 	 * @return				SUCCESS if operation completed
 	 */
 	status_t (*query_sa) (kernel_ipsec_t *this, host_t *src, host_t *dst,
 						  u_int32_t spi, u_int8_t protocol, mark_t mark,
-						  u_int64_t *bytes, u_int64_t *packets, u_int32_t *time);
+						  u_int64_t *bytes, u_int64_t *packets, time_t *time);
 
 	/**
 	 * Delete a previusly installed SA from the SAD.

src/libhydra/plugins/kernel_klips/kernel_klips_ipsec.c

@@ -1911,7 +1911,7 @@ METHOD(kernel_ipsec_t, update_sa, status_t,
 METHOD(kernel_ipsec_t, query_sa, status_t,
 	private_kernel_klips_ipsec_t *this, host_t *src, host_t *dst,
 	u_int32_t spi, u_int8_t protocol, mark_t mark,
-	u_int64_t *bytes, u_int64_t *packets, u_int32_t *time)
+	u_int64_t *bytes, u_int64_t *packets, time_t *time)
 {
 	return NOT_SUPPORTED;  /* TODO */
 }

src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c

@@ -1611,7 +1611,7 @@ static void get_replay_state(private_kernel_netlink_ipsec_t *this,
 METHOD(kernel_ipsec_t, query_sa, status_t,
 	private_kernel_netlink_ipsec_t *this, host_t *src, host_t *dst,
 	u_int32_t spi, u_int8_t protocol, mark_t mark,
-	u_int64_t *bytes, u_int64_t *packets, u_int32_t *time)
+	u_int64_t *bytes, u_int64_t *packets, time_t *time)
 {
 	netlink_buf_t request;
 	struct nlmsghdr *out = NULL, *hdr;

src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.c

@@ -1802,7 +1802,7 @@ METHOD(kernel_ipsec_t, update_sa, status_t,
 METHOD(kernel_ipsec_t, query_sa, status_t,
 	private_kernel_pfkey_ipsec_t *this, host_t *src, host_t *dst,
 	u_int32_t spi, u_int8_t protocol, mark_t mark,
-	u_int64_t *bytes, u_int64_t *packets, u_int32_t *time)
+	u_int64_t *bytes, u_int64_t *packets, time_t *time)
 {
 	unsigned char request[PFKEY_BUFFER_SIZE];
 	struct sadb_msg *msg, *out;