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authorDeepa Dinamani <deepa.kernel@gmail.com>2019-02-02 07:34:50 -0800
committerDavid S. Miller <davem@davemloft.net>2019-02-03 11:17:31 -0800
commit887feae36aee6c08e0dafcdaa5ba921abbb2c56b (patch)
tree1c34072c8057e8d5babf22242ec8b1a383998ce0 /include/uapi/asm-generic
parent98bb03c865d7ddf7a9a2eb80f9a0dd5f261c56ad (diff)
socket: Add SO_TIMESTAMP[NS]_NEW
Add SO_TIMESTAMP_NEW and SO_TIMESTAMPNS_NEW variants of socket timestamp options. These are the y2038 safe versions of the SO_TIMESTAMP_OLD and SO_TIMESTAMPNS_OLD for all architectures. Note that the format of scm_timestamping.ts[0] is not changed in this patch. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: Willem de Bruijn <willemb@google.com> Cc: jejb@parisc-linux.org Cc: ralf@linux-mips.org Cc: rth@twiddle.net Cc: linux-alpha@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-parisc@vger.kernel.org Cc: linux-rdma@vger.kernel.org Cc: netdev@vger.kernel.org Cc: sparclinux@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/asm-generic')
-rw-r--r--include/uapi/asm-generic/socket.h15
1 files changed, 13 insertions, 2 deletions
diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h
index 4ef3aed31fb7..f22d3f7162f8 100644
--- a/include/uapi/asm-generic/socket.h
+++ b/include/uapi/asm-generic/socket.h
@@ -3,6 +3,7 @@
#define __ASM_GENERIC_SOCKET_H
#include <asm/sockios.h>
+#include <asm/bitsperlong.h>
/* For setsockopt(2) */
#define SOL_SOCKET 1
@@ -109,10 +110,20 @@
#define SO_TIMESTAMPNS_OLD 35
#define SO_TIMESTAMPING_OLD 37
+#define SO_TIMESTAMP_NEW 63
+#define SO_TIMESTAMPNS_NEW 64
+
#if !defined(__KERNEL__)
-#define SO_TIMESTAMP SO_TIMESTAMP_OLD
-#define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD
+#if __BITS_PER_LONG == 64 || (defined(__x86_64__) && defined(__ILP32__))
+/* on 64-bit and x32, avoid the ?: operator */
+#define SO_TIMESTAMP SO_TIMESTAMP_OLD
+#define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD
+#else
+#define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
+#define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
+#endif
+
#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD
#define SCM_TIMESTAMP SO_TIMESTAMP