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linux-next/include/linux/errqueue.h
Soheil Hassas Yeganeh 4ef1b28694 tcp: mark skbs with SCM_TIMESTAMPING_OPT_STATS
SOF_TIMESTAMPING_OPT_STATS can be enabled and disabled
while packets are collected on the error queue.
So, checking SOF_TIMESTAMPING_OPT_STATS in sk->sk_tsflags
is not enough to safely assume that the skb contains
OPT_STATS data.

Add a bit in sock_exterr_skb to indicate whether the
skb contains opt_stats data.

Fixes: 1c885808e4 ("tcp: SOF_TIMESTAMPING_OPT_STATS option for SO_TIMESTAMPING")
Reported-by: JongHwan Kim <zzoru007@gmail.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-21 18:44:17 -07:00

28 lines
485 B
C

#ifndef _LINUX_ERRQUEUE_H
#define _LINUX_ERRQUEUE_H 1
#include <net/ip.h>
#if IS_ENABLED(CONFIG_IPV6)
#include <linux/ipv6.h>
#endif
#include <uapi/linux/errqueue.h>
#define SKB_EXT_ERR(skb) ((struct sock_exterr_skb *) ((skb)->cb))
struct sock_exterr_skb {
union {
struct inet_skb_parm h4;
#if IS_ENABLED(CONFIG_IPV6)
struct inet6_skb_parm h6;
#endif
} header;
struct sock_extended_err ee;
u16 addr_offset;
__be16 port;
u8 opt_stats:1,
unused:7;
};
#endif