diff mbox series

[net-next,v5,11/12] socket: Rename SO_RCVTIMEO/ SO_SNDTIMEO with _OLD suffixes

Message ID 20190202153454.7121-12-deepa.kernel@gmail.com (mailing list archive)
State Not Applicable
Headers show
Series net: y2038-safe socket timestamps | expand

Commit Message

Deepa Dinamani Feb. 2, 2019, 3:34 p.m. UTC
SO_RCVTIMEO and SO_SNDTIMEO socket options use struct timeval
as the time format. struct timeval is not y2038 safe.
The subsequent patches in the series add support for new socket
timeout options with _NEW suffix that will use y2038 safe
data structures. Although the existing struct timeval layout
is sufficiently wide to represent timeouts, because of the way
libc will interpret time_t based on user defined flag, these
new flags provide a way of having a structure that is the same
for all architectures consistently.
Rename the existing options with _OLD suffix forms so that the
right option is enabled for userspace applications according
to the architecture and time_t definition of libc.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Cc: ccaulfie@redhat.com
Cc: deller@gmx.de
Cc: paulus@samba.org
Cc: ralf@linux-mips.org
Cc: rth@twiddle.net
Cc: cluster-devel@redhat.com
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: sparclinux@vger.kernel.org
---
 arch/alpha/include/uapi/asm/socket.h   | 7 +++++--
 arch/mips/include/uapi/asm/socket.h    | 6 ++++--
 arch/parisc/include/uapi/asm/socket.h  | 6 ++++--
 arch/powerpc/include/uapi/asm/socket.h | 4 ++--
 arch/sparc/include/uapi/asm/socket.h   | 7 +++++--
 fs/dlm/lowcomms.c                      | 4 ++--
 include/uapi/asm-generic/socket.h      | 6 ++++--
 net/core/sock.c                        | 4 ++--
 8 files changed, 28 insertions(+), 16 deletions(-)

Comments

Michael Ellerman Feb. 6, 2019, 11:58 a.m. UTC | #1
Deepa Dinamani <deepa.kernel@gmail.com> writes:

> SO_RCVTIMEO and SO_SNDTIMEO socket options use struct timeval
> as the time format. struct timeval is not y2038 safe.
> The subsequent patches in the series add support for new socket
> timeout options with _NEW suffix that will use y2038 safe
> data structures. Although the existing struct timeval layout
> is sufficiently wide to represent timeouts, because of the way
> libc will interpret time_t based on user defined flag, these
> new flags provide a way of having a structure that is the same
> for all architectures consistently.
> Rename the existing options with _OLD suffix forms so that the
> right option is enabled for userspace applications according
> to the architecture and time_t definition of libc.
>
> Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
> Acked-by: Willem de Bruijn <willemb@google.com>
> Cc: ccaulfie@redhat.com
> Cc: deller@gmx.de
> Cc: paulus@samba.org
> Cc: ralf@linux-mips.org
> Cc: rth@twiddle.net
> Cc: cluster-devel@redhat.com
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: linux-alpha@vger.kernel.org
> Cc: linux-arch@vger.kernel.org
> Cc: linux-mips@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: sparclinux@vger.kernel.org
> ---
>  arch/alpha/include/uapi/asm/socket.h   | 7 +++++--
>  arch/mips/include/uapi/asm/socket.h    | 6 ++++--
>  arch/parisc/include/uapi/asm/socket.h  | 6 ++++--
>  arch/powerpc/include/uapi/asm/socket.h | 4 ++--

The powerpc changes look OK to me.

Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)

cheers

> diff --git a/arch/powerpc/include/uapi/asm/socket.h b/arch/powerpc/include/uapi/asm/socket.h
> index 94de465e0920..12aa0c43e775 100644
> --- a/arch/powerpc/include/uapi/asm/socket.h
> +++ b/arch/powerpc/include/uapi/asm/socket.h
> @@ -11,8 +11,8 @@
>  
>  #define SO_RCVLOWAT	16
>  #define SO_SNDLOWAT	17
> -#define SO_RCVTIMEO	18
> -#define SO_SNDTIMEO	19
> +#define SO_RCVTIMEO_OLD	18
> +#define SO_SNDTIMEO_OLD	19
>  #define SO_PASSCRED	20
>  #define SO_PEERCRED	21
>  
> diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h
> index 2713e0fa68ef..c56b8b487c12 100644
> --- a/include/uapi/asm-generic/socket.h
> +++ b/include/uapi/asm-generic/socket.h
> @@ -30,8 +30,8 @@
>  #define SO_PEERCRED	17
>  #define SO_RCVLOWAT	18
>  #define SO_SNDLOWAT	19
> -#define SO_RCVTIMEO	20
> -#define SO_SNDTIMEO	21
> +#define SO_RCVTIMEO_OLD	20
> +#define SO_SNDTIMEO_OLD	21
>  #endif
>  
>  /* Security levels - as per NRL IPv6 - don't actually do anything */
> @@ -116,6 +116,8 @@
>  
>  #if !defined(__KERNEL__)
>  
> +#define	SO_RCVTIMEO SO_RCVTIMEO_OLD
> +#define	SO_SNDTIMEO SO_SNDTIMEO_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
diff mbox series

Patch

diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h
index 934ea6268f1a..9826d1db71d0 100644
--- a/arch/alpha/include/uapi/asm/socket.h
+++ b/arch/alpha/include/uapi/asm/socket.h
@@ -31,8 +31,8 @@ 
 #define SO_RCVBUFFORCE	0x100b
 #define	SO_RCVLOWAT	0x1010
 #define	SO_SNDLOWAT	0x1011
-#define	SO_RCVTIMEO	0x1012
-#define	SO_SNDTIMEO	0x1013
+#define	SO_RCVTIMEO_OLD	0x1012
+#define	SO_SNDTIMEO_OLD	0x1013
 #define SO_ACCEPTCONN	0x1014
 #define SO_PROTOCOL	0x1028
 #define SO_DOMAIN	0x1029
@@ -121,6 +121,9 @@ 
 
 #if !defined(__KERNEL__)
 
+#define	SO_RCVTIMEO SO_RCVTIMEO_OLD
+#define	SO_SNDTIMEO SO_SNDTIMEO_OLD
+
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h
index 110f9506d64f..96cc0e907f12 100644
--- a/arch/mips/include/uapi/asm/socket.h
+++ b/arch/mips/include/uapi/asm/socket.h
@@ -39,8 +39,8 @@ 
 #define SO_RCVBUF	0x1002	/* Receive buffer. */
 #define SO_SNDLOWAT	0x1003	/* send low-water mark */
 #define SO_RCVLOWAT	0x1004	/* receive low-water mark */
-#define SO_SNDTIMEO	0x1005	/* send timeout */
-#define SO_RCVTIMEO	0x1006	/* receive timeout */
+#define SO_SNDTIMEO_OLD	0x1005	/* send timeout */
+#define SO_RCVTIMEO_OLD	0x1006	/* receive timeout */
 #define SO_ACCEPTCONN	0x1009
 #define SO_PROTOCOL	0x1028	/* protocol type */
 #define SO_DOMAIN	0x1029	/* domain/socket family */
@@ -132,6 +132,8 @@ 
 
 #if !defined(__KERNEL__)
 
+#define	SO_RCVTIMEO SO_RCVTIMEO_OLD
+#define	SO_SNDTIMEO SO_SNDTIMEO_OLD
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index bee2a9dde656..046f0cd9cce4 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -22,8 +22,8 @@ 
 #define SO_RCVBUFFORCE	0x100b
 #define SO_SNDLOWAT	0x1003
 #define SO_RCVLOWAT	0x1004
-#define SO_SNDTIMEO	0x1005
-#define SO_RCVTIMEO	0x1006
+#define SO_SNDTIMEO_OLD	0x1005
+#define SO_RCVTIMEO_OLD	0x1006
 #define SO_ERROR	0x1007
 #define SO_TYPE		0x1008
 #define SO_PROTOCOL	0x1028
@@ -113,6 +113,8 @@ 
 
 #if !defined(__KERNEL__)
 
+#define	SO_RCVTIMEO SO_RCVTIMEO_OLD
+#define	SO_SNDTIMEO SO_SNDTIMEO_OLD
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
diff --git a/arch/powerpc/include/uapi/asm/socket.h b/arch/powerpc/include/uapi/asm/socket.h
index 94de465e0920..12aa0c43e775 100644
--- a/arch/powerpc/include/uapi/asm/socket.h
+++ b/arch/powerpc/include/uapi/asm/socket.h
@@ -11,8 +11,8 @@ 
 
 #define SO_RCVLOWAT	16
 #define SO_SNDLOWAT	17
-#define SO_RCVTIMEO	18
-#define SO_SNDTIMEO	19
+#define SO_RCVTIMEO_OLD	18
+#define SO_SNDTIMEO_OLD	19
 #define SO_PASSCRED	20
 #define SO_PEERCRED	21
 
diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h
index 2b38dda51426..342ffdc3b424 100644
--- a/arch/sparc/include/uapi/asm/socket.h
+++ b/arch/sparc/include/uapi/asm/socket.h
@@ -21,8 +21,8 @@ 
 #define SO_BSDCOMPAT    0x0400
 #define SO_RCVLOWAT     0x0800
 #define SO_SNDLOWAT     0x1000
-#define SO_RCVTIMEO     0x2000
-#define SO_SNDTIMEO     0x4000
+#define SO_RCVTIMEO_OLD     0x2000
+#define SO_SNDTIMEO_OLD     0x4000
 #define SO_ACCEPTCONN	0x8000
 
 #define SO_SNDBUF	0x1001
@@ -114,6 +114,9 @@ 
 
 #if !defined(__KERNEL__)
 
+#define SO_RCVTIMEO              SO_RCVTIMEO_OLD
+#define SO_SNDTIMEO              SO_SNDTIMEO_OLD
+
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP		SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 76976d6e50f9..c98ad9777ad9 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -1089,12 +1089,12 @@  static void sctp_connect_to_sock(struct connection *con)
 	 * since O_NONBLOCK argument in connect() function does not work here,
 	 * then, we should restore the default value of this attribute.
 	 */
-	kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv,
+	kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO_OLD, (char *)&tv,
 			  sizeof(tv));
 	result = sock->ops->connect(sock, (struct sockaddr *)&daddr, addr_len,
 				   0);
 	memset(&tv, 0, sizeof(tv));
-	kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv,
+	kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO_OLD, (char *)&tv,
 			  sizeof(tv));
 
 	if (result == -EINPROGRESS)
diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h
index 2713e0fa68ef..c56b8b487c12 100644
--- a/include/uapi/asm-generic/socket.h
+++ b/include/uapi/asm-generic/socket.h
@@ -30,8 +30,8 @@ 
 #define SO_PEERCRED	17
 #define SO_RCVLOWAT	18
 #define SO_SNDLOWAT	19
-#define SO_RCVTIMEO	20
-#define SO_SNDTIMEO	21
+#define SO_RCVTIMEO_OLD	20
+#define SO_SNDTIMEO_OLD	21
 #endif
 
 /* Security levels - as per NRL IPv6 - don't actually do anything */
@@ -116,6 +116,8 @@ 
 
 #if !defined(__KERNEL__)
 
+#define	SO_RCVTIMEO SO_RCVTIMEO_OLD
+#define	SO_SNDTIMEO SO_SNDTIMEO_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
diff --git a/net/core/sock.c b/net/core/sock.c
index a9d1ecce96e5..27b40002b780 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -941,11 +941,11 @@  int sock_setsockopt(struct socket *sock, int level, int optname,
 			sk->sk_rcvlowat = val ? : 1;
 		break;
 
-	case SO_RCVTIMEO:
+	case SO_RCVTIMEO_OLD:
 		ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen);
 		break;
 
-	case SO_SNDTIMEO:
+	case SO_SNDTIMEO_OLD:
 		ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen);
 		break;