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[NET]: socket timestamp 32 bit handler for 64 bit kernel
Get socket timestamp handler function that does not use the ioctl32_hash_table. Signed-off-by: Shaun Pereira <spereira@tusc.com.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -23,6 +23,9 @@ struct compat_cmsghdr {
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compat_int_t cmsg_type;
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};
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struct sock;
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extern int compat_sock_get_timestamp(struct sock *, struct timeval __user *);
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#else /* defined(CONFIG_COMPAT) */
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#define compat_msghdr msghdr /* to avoid compiler warnings */
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#endif /* defined(CONFIG_COMPAT) */
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@ -34,7 +37,6 @@ extern asmlinkage long compat_sys_recvmsg(int,struct compat_msghdr __user *,unsi
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extern asmlinkage long compat_sys_getsockopt(int, int, int, char __user *, int __user *);
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extern int put_cmsg_compat(struct msghdr*, int, int, int, void *);
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struct sock;
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extern int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *, unsigned char *, int);
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#endif /* NET_COMPAT_H */
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19
net/compat.c
19
net/compat.c
@ -543,6 +543,25 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
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return sock_getsockopt(sock, level, optname, optval, optlen);
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}
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int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
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{
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struct compat_timeval __user *ctv =
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(struct compat_timeval __user*) userstamp;
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int err = -ENOENT;
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if (!sock_flag(sk, SOCK_TIMESTAMP))
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sock_enable_timestamp(sk);
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if (sk->sk_stamp.tv_sec == -1)
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return err;
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if (sk->sk_stamp.tv_sec == 0)
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do_gettimeofday(&sk->sk_stamp);
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if (put_user(sk->sk_stamp.tv_sec, &ctv->tv_sec) ||
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put_user(sk->sk_stamp.tv_usec, &ctv->tv_usec))
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err = -EFAULT;
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return err;
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}
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EXPORT_SYMBOL(compat_sock_get_timestamp);
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asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
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char __user *optval, int __user *optlen)
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{
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