Add new socket timeout options that are y2038 safe.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com Cc: ccaulfie@redhat.com Cc: davem@davemloft.net 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 | 12 +++-- arch/mips/include/uapi/asm/socket.h | 11 ++++- arch/parisc/include/uapi/asm/socket.h | 11 ++++- arch/sparc/include/uapi/asm/socket.h | 11 ++++- include/net/sock.h | 4 +- include/uapi/asm-generic/socket.h | 11 ++++- net/core/sock.c | 64 +++++++++++++++++++++------ 7 files changed, 98 insertions(+), 26 deletions(-)
diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h index ea3ba981d8a0..3d800d5d3d5d 100644 --- a/arch/alpha/include/uapi/asm/socket.h +++ b/arch/alpha/include/uapi/asm/socket.h @@ -118,19 +118,25 @@ #define SO_TIMESTAMPNS_NEW 63 #define SO_TIMESTAMPING_NEW 64
-#if !defined(__KERNEL__) +#define SO_RCVTIMEO_NEW 65 +#define SO_SNDTIMEO_NEW 66
-#define SO_RCVTIMEO SO_RCVTIMEO_OLD -#define SO_SNDTIMEO SO_SNDTIMEO_OLD +#if !defined(__KERNEL__)
#if __BITS_PER_LONG == 64 #define SO_TIMESTAMP SO_TIMESTAMP_OLD #define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD #define SO_TIMESTAMPING SO_TIMESTAMPING_OLD + +#define SO_RCVTIMEO SO_RCVTIMEO_OLD +#define SO_SNDTIMEO SO_SNDTIMEO_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) #define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW) + +#define SO_RCVTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_RCVTIMEO_OLD : SO_RCVTIMEO_NEW) +#define SO_SNDTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_SNDTIMEO_OLD : SO_SNDTIMEO_NEW) #endif
#define SCM_TIMESTAMP SO_TIMESTAMP diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h index 4dde20d64690..5a7f9010c090 100644 --- a/arch/mips/include/uapi/asm/socket.h +++ b/arch/mips/include/uapi/asm/socket.h @@ -128,18 +128,25 @@ #define SO_TIMESTAMPNS_NEW 63 #define SO_TIMESTAMPING_NEW 64
+#define SO_RCVTIMEO_NEW 65 +#define SO_SNDTIMEO_NEW 66 + #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 #define SO_TIMESTAMPING SO_TIMESTAMPING_OLD + +#define SO_RCVTIMEO SO_RCVTIMEO_OLD +#define SO_SNDTIMEO SO_SNDTIMEO_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) #define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW) + +#define SO_RCVTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_RCVTIMEO_OLD : SO_RCVTIMEO_NEW) +#define SO_SNDTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_SNDTIMEO_OLD : SO_SNDTIMEO_NEW) #endif
#define SCM_TIMESTAMP SO_TIMESTAMP diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h index 546937fa0d8b..bd35de5b4666 100644 --- a/arch/parisc/include/uapi/asm/socket.h +++ b/arch/parisc/include/uapi/asm/socket.h @@ -109,18 +109,25 @@ #define SO_TIMESTAMPNS_NEW 0x4038 #define SO_TIMESTAMPING_NEW 0x4039
+#define SO_RCVTIMEO_NEW 0x4040 +#define SO_SNDTIMEO_NEW 0x4041 + #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 #define SO_TIMESTAMPING SO_TIMESTAMPING_OLD + +#define SO_RCVTIMEO SO_RCVTIMEO_OLD +#define SO_SNDTIMEO SO_SNDTIMEO_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) #define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW) + +#define SO_RCVTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_RCVTIMEO_OLD : SO_RCVTIMEO_NEW) +#define SO_SNDTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_SNDTIMEO_OLD : SO_SNDTIMEO_NEW) #endif
#define SCM_TIMESTAMP SO_TIMESTAMP diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h index bdc396211627..5a5b073c3299 100644 --- a/arch/sparc/include/uapi/asm/socket.h +++ b/arch/sparc/include/uapi/asm/socket.h @@ -110,18 +110,25 @@ #define SO_TIMESTAMPNS_NEW 0x0042 #define SO_TIMESTAMPING_NEW 0x0043
+#define SO_RCVTIMEO_NEW 0x0044 +#define SO_SNDTIMEO_NEW 0x0045 + #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 #define SO_TIMESTAMPING SO_TIMESTAMPING_OLD + +#define SO_RCVTIMEO SO_RCVTIMEO_OLD +#define SO_SNDTIMEO SO_SNDTIMEO_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) #define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW) + +#define SO_RCVTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_RCVTIMEO_OLD : SO_RCVTIMEO_NEW) +#define SO_SNDTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_SNDTIMEO_OLD : SO_SNDTIMEO_NEW) #endif
diff --git a/include/net/sock.h b/include/net/sock.h index 98965a9a2bf4..6679f3c120b0 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -292,8 +292,8 @@ struct sock_common { * @sk_peer_pid: &struct pid for this socket's peer * @sk_peer_cred: %SO_PEERCRED setting * @sk_rcvlowat: %SO_RCVLOWAT setting - * @sk_rcvtimeo: %SO_RCVTIMEO_OLD setting - * @sk_sndtimeo: %SO_SNDTIMEO_OLD setting + * @sk_rcvtimeo: %SO_RCVTIMEO setting + * @sk_sndtimeo: %SO_SNDTIMEO setting * @sk_txhash: computed flow hash for use on transmit * @sk_filter: socket filtering instructions * @sk_timer: sock cleanup timer diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h index 9e370586fb19..5b4da6eacc9f 100644 --- a/include/uapi/asm-generic/socket.h +++ b/include/uapi/asm-generic/socket.h @@ -112,19 +112,26 @@ #define SO_TIMESTAMPNS_NEW 63 #define SO_TIMESTAMPING_NEW 64
+#define SO_RCVTIMEO_NEW 65 +#define SO_SNDTIMEO_NEW 66 + #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 #define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD #define SO_TIMESTAMPING SO_TIMESTAMPING_OLD + +#define SO_RCVTIMEO SO_RCVTIMEO_OLD +#define SO_SNDTIMEO SO_SNDTIMEO_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) #define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW) + +#define SO_RCVTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_RCVTIMEO_OLD : SO_RCVTIMEO_NEW) +#define SO_SNDTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_SNDTIMEO_OLD : SO_SNDTIMEO_NEW) #endif
#define SCM_TIMESTAMP SO_TIMESTAMP diff --git a/net/core/sock.c b/net/core/sock.c index 42914ca3186c..5e1c6dafee65 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -335,18 +335,31 @@ int __sk_backlog_rcv(struct sock *sk, struct sk_buff *skb) } EXPORT_SYMBOL(__sk_backlog_rcv);
-static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen) +static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen, bool old_timeval) { - struct __kernel_old_timeval tv;
- if (optlen < sizeof(tv)) - return -EINVAL; - if (copy_from_user(&tv, optval, sizeof(tv))) - return -EFAULT; - if (tv.tv_usec < 0 || tv.tv_usec >= USEC_PER_SEC) + struct __kernel_sock_timeval stv; + + if (old_timeval) { + struct __kernel_old_timeval tv; + + if (optlen < sizeof(tv)) + return -EINVAL; + if (copy_from_user(&tv, optval, sizeof(tv))) + return -EFAULT; + stv.tv_sec = tv.tv_sec; + stv.tv_usec = tv.tv_usec; + } else { + if (optlen < sizeof(stv)) + return -EINVAL; + if (copy_from_user(&stv, optval, sizeof(stv))) + return -EFAULT; + } + + if (stv.tv_usec < 0 || stv.tv_usec >= USEC_PER_SEC) return -EDOM;
- if (tv.tv_sec < 0) { + if (stv.tv_sec < 0) { static int warned __read_mostly;
*timeo_p = 0; @@ -358,10 +371,10 @@ static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen) return 0; } *timeo_p = MAX_SCHEDULE_TIMEOUT; - if (tv.tv_sec == 0 && tv.tv_usec == 0) + if (stv.tv_sec == 0 && stv.tv_usec == 0) return 0; - if (tv.tv_sec < (MAX_SCHEDULE_TIMEOUT/HZ - 1)) - *timeo_p = tv.tv_sec * HZ + DIV_ROUND_UP(tv.tv_usec, USEC_PER_SEC / HZ); + if (stv.tv_sec < (MAX_SCHEDULE_TIMEOUT / HZ - 1)) + *timeo_p = stv.tv_sec * HZ + DIV_ROUND_UP((unsigned long)stv.tv_usec, USEC_PER_SEC / HZ); return 0; }
@@ -890,11 +903,13 @@ int sock_setsockopt(struct socket *sock, int level, int optname, break;
case SO_RCVTIMEO_OLD: - ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen); + case SO_RCVTIMEO_NEW: + ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen, optname == SO_RCVTIMEO_OLD); break;
case SO_SNDTIMEO_OLD: - ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen); + case SO_SNDTIMEO_NEW: + ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen, optname == SO_SNDTIMEO_OLD); break;
case SO_ATTACH_FILTER: @@ -1114,6 +1129,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname, u64 val64; struct linger ling; struct __kernel_old_timeval tm; + struct __kernel_sock_timeval stm; struct sock_txtime txtime; } v;
@@ -1233,6 +1249,17 @@ int sock_getsockopt(struct socket *sock, int level, int optname, } break;
+ case SO_RCVTIMEO_NEW: + lv = sizeof(struct __kernel_sock_timeval); + if (sk->sk_rcvtimeo == MAX_SCHEDULE_TIMEOUT) { + v.stm.tv_sec = 0; + v.stm.tv_usec = 0; + } else { + v.stm.tv_sec = sk->sk_rcvtimeo / HZ; + v.stm.tv_usec = ((sk->sk_rcvtimeo % HZ) * USEC_PER_SEC) / HZ; + } + break; + case SO_SNDTIMEO_OLD: lv = sizeof(struct __kernel_old_timeval); if (sk->sk_sndtimeo == MAX_SCHEDULE_TIMEOUT) { @@ -1244,6 +1271,17 @@ int sock_getsockopt(struct socket *sock, int level, int optname, } break;
+ case SO_SNDTIMEO_NEW: + lv = sizeof(struct __kernel_sock_timeval); + if (sk->sk_sndtimeo == MAX_SCHEDULE_TIMEOUT) { + v.stm.tv_sec = 0; + v.stm.tv_usec = 0; + } else { + v.stm.tv_sec = sk->sk_sndtimeo / HZ; + v.stm.tv_usec = ((sk->sk_sndtimeo % HZ) * USEC_PER_SEC) / HZ; + } + break; + case SO_RCVLOWAT: v.val = sk->sk_rcvlowat; break;