diff options
| author | H. J. Lu <hjl.tools@gmail.com> | 2012-02-19 17:50:46 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2012-02-20 12:48:48 -0800 |
| commit | ee4fa23c4bfcc635d077a9633d405610de45bc70 (patch) | |
| tree | 45cc8cadc91c44dfed9921d03ba36606f80ac072 /net | |
| parent | da88cea1200b9df65a7811a3920aa5a4be7dab9f (diff) | |
compat: Use COMPAT_USE_64BIT_TIME in net/compat.c
Handle 64-bit time structures in the networking core compat code.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/compat.c | 65 |
1 files changed, 40 insertions, 25 deletions
diff --git a/net/compat.c b/net/compat.c index 6def90e0a112..73bf0e06f3d7 100644 --- a/net/compat.c +++ b/net/compat.c @@ -219,8 +219,6 @@ Efault: int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data) { - struct compat_timeval ctv; - struct compat_timespec cts[3]; struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control; struct compat_cmsghdr cmhdr; int cmlen; @@ -230,24 +228,28 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat return 0; /* XXX: return error? check spec. */ } - if (level == SOL_SOCKET && type == SCM_TIMESTAMP) { - struct timeval *tv = (struct timeval *)data; - ctv.tv_sec = tv->tv_sec; - ctv.tv_usec = tv->tv_usec; - data = &ctv; - len = sizeof(ctv); - } - if (level == SOL_SOCKET && - (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) { - int count = type == SCM_TIMESTAMPNS ? 1 : 3; - int i; - struct timespec *ts = (struct timespec *)data; - for (i = 0; i < count; i++) { - cts[i].tv_sec = ts[i].tv_sec; - cts[i].tv_nsec = ts[i].tv_nsec; + if (!COMPAT_USE_64BIT_TIME) { + struct compat_timeval ctv; + struct compat_timespec cts[3]; + if (level == SOL_SOCKET && type == SCM_TIMESTAMP) { + struct timeval *tv = (struct timeval *)data; + ctv.tv_sec = tv->tv_sec; + ctv.tv_usec = tv->tv_usec; + data = &ctv; + len = sizeof(ctv); + } + if (level == SOL_SOCKET && + (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) { + int count = type == SCM_TIMESTAMPNS ? 1 : 3; + int i; + struct timespec *ts = (struct timespec *)data; + for (i = 0; i < count; i++) { + cts[i].tv_sec = ts[i].tv_sec; + cts[i].tv_nsec = ts[i].tv_nsec; + } + data = &cts; + len = sizeof(cts[0]) * count; } - data = &cts; - len = sizeof(cts[0]) * count; } cmlen = CMSG_COMPAT_LEN(len); @@ -454,11 +456,15 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname, int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp) { - struct compat_timeval __user *ctv = - (struct compat_timeval __user *) userstamp; - int err = -ENOENT; + struct compat_timeval __user *ctv; + int err; struct timeval tv; + if (COMPAT_USE_64BIT_TIME) + return sock_get_timestamp(sk, userstamp); + + ctv = (struct compat_timeval __user *) userstamp; + err = -ENOENT; if (!sock_flag(sk, SOCK_TIMESTAMP)) sock_enable_timestamp(sk, SOCK_TIMESTAMP); tv = ktime_to_timeval(sk->sk_stamp); @@ -478,11 +484,15 @@ EXPORT_SYMBOL(compat_sock_get_timestamp); int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp) { - struct compat_timespec __user *ctv = - (struct compat_timespec __user *) userstamp; - int err = -ENOENT; + struct compat_timespec __user *ctv; + int err; struct timespec ts; + if (COMPAT_USE_64BIT_TIME) + return sock_get_timestampns (sk, userstamp); + + ctv = (struct compat_timespec __user *) userstamp; + err = -ENOENT; if (!sock_flag(sk, SOCK_TIMESTAMP)) sock_enable_timestamp(sk, SOCK_TIMESTAMP); ts = ktime_to_timespec(sk->sk_stamp); @@ -767,6 +777,11 @@ asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg, int datagrams; struct timespec ktspec; + if (COMPAT_USE_64BIT_TIME) + return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen, + flags | MSG_CMSG_COMPAT, + (struct timespec *) timeout); + if (timeout == NULL) return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen, flags | MSG_CMSG_COMPAT, NULL); |