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Merge branch 'sctp-timestamp-fixes'

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Marcelo Ricardo Leitner says:

====================
sctp: packet timestamp fixes

These a couple of fixes regarding sctp/packet timestamps.

Dmitry Vyukov <dvyukov@google.com> reported the counter leak on missing
net_enable_timestamp() (2nd patch) and further testing here revealed the
other two issues.

Please consider these to -stable.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2015-12-05 22:23:23 -05:00
commit ef3f9569e9
4 changed files with 8 additions and 4 deletions
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2
include/net/sock.h
View File

@ -740,6 +740,8 @@ enum sock_flags {
SOCK_SELECT_ERR_QUEUE, /* Wake select on error queue */
};
#define SK_FLAGS_TIMESTAMP ((1UL << SOCK_TIMESTAMP) | (1UL << SOCK_TIMESTAMPING_RX_SOFTWARE))
static inline void sock_copy_flags(struct sock *nsk, struct sock *osk)
{
nsk->sk_flags = osk->sk_flags;

2
net/core/sock.c
View File

@ -433,8 +433,6 @@ static bool sock_needs_netstamp(const struct sock *sk)
}
}
#define SK_FLAGS_TIMESTAMP ((1UL << SOCK_TIMESTAMP) | (1UL << SOCK_TIMESTAMPING_RX_SOFTWARE))
static void sock_disable_timestamp(struct sock *sk, unsigned long flags)
{
if (sk->sk_flags & flags) {

4
net/sctp/sm_make_chunk.c
View File

@ -1652,7 +1652,7 @@ static sctp_cookie_param_t *sctp_pack_cookie(const struct sctp_endpoint *ep,
/* Set an expiration time for the cookie. */
cookie->c.expiration = ktime_add(asoc->cookie_life,
ktime_get());
ktime_get_real());
/* Copy the peer's init packet. */
memcpy(&cookie->c.peer_init[0], init_chunk->chunk_hdr,
@ -1780,7 +1780,7 @@ no_hmac:
if (sock_flag(ep->base.sk, SOCK_TIMESTAMP))
kt = skb_get_ktime(skb);
else
kt = ktime_get();
kt = ktime_get_real();
if (!asoc && ktime_before(bear_cookie->expiration, kt)) {
/*

4
net/sctp/socket.c
View File

@ -7167,6 +7167,7 @@ void sctp_copy_sock(struct sock *newsk, struct sock *sk,
newsk->sk_type = sk->sk_type;
newsk->sk_bound_dev_if = sk->sk_bound_dev_if;
newsk->sk_flags = sk->sk_flags;
newsk->sk_tsflags = sk->sk_tsflags;
newsk->sk_no_check_tx = sk->sk_no_check_tx;
newsk->sk_no_check_rx = sk->sk_no_check_rx;
newsk->sk_reuse = sk->sk_reuse;
@ -7199,6 +7200,9 @@ void sctp_copy_sock(struct sock *newsk, struct sock *sk,
newinet->mc_ttl = 1;
newinet->mc_index = 0;
newinet->mc_list = NULL;
if (newsk->sk_flags & SK_FLAGS_TIMESTAMP)
net_enable_timestamp();
}
static inline void sctp_copy_descendant(struct sock *sk_to,