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SubjectRe: [PATCH 6/6] Netfilter: xt_LOG: Add timestamp support
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Le mercredi 07 mars 2012 à 16:29 +0100, Pablo Neira Ayuso a écrit :
> On Tue, Mar 06, 2012 at 12:19:48AM +0100, Richard Weinberger wrote:
> > Using XT_LOG_ADD_TIMESTAMP it is possible to have a timestamp
> > directly in the log message.
> >
> > Signed-off-by: Richard Weinberger <richard@nod.at>
> > ---
> > include/linux/netfilter/xt_LOG.h | 3 ++-
> > net/netfilter/xt_LOG.c | 8 ++++++++
> > 2 files changed, 10 insertions(+), 1 deletions(-)
> >
> > diff --git a/include/linux/netfilter/xt_LOG.h b/include/linux/netfilter/xt_LOG.h
> > index 8ac25e0..9361374 100644
> > --- a/include/linux/netfilter/xt_LOG.h
> > +++ b/include/linux/netfilter/xt_LOG.h
> > @@ -8,7 +8,8 @@
> > #define XT_LOG_UID 0x08 /* Log UID owning local socket */
> > #define XT_LOG_NFLOG 0x10 /* Unsupported, don't reuse */
> > #define XT_LOG_MACDECODE 0x20 /* Decode MAC header */
> > -#define XT_LOG_MASK 0x2f
> > +#define XT_LOG_ADD_TIMESTAMP 0x40 /* Add a timestamp */
> > +#define XT_LOG_MASK 0x6f
> >
> > struct xt_log_info {
> > unsigned char level;
> > diff --git a/net/netfilter/xt_LOG.c b/net/netfilter/xt_LOG.c
> > index f75f2d7..23db206 100644
> > --- a/net/netfilter/xt_LOG.c
> > +++ b/net/netfilter/xt_LOG.c
> > @@ -499,6 +499,14 @@ log_packet_common(struct sbuff *m,
> > if (loginfo->type == NF_LOG_TYPE_LOG)
> > sb_add(m, "<%d>", loginfo->u.log.level);
> >
> > + if (loginfo->u.log.logflags & XT_LOG_ADD_TIMESTAMP) {
> > + struct timespec tv;
> > +
> > + getnstimeofday(&tv);
> > + sb_add(m, "TIMESTAMP=%li.%03u ", tv.tv_sec,
> > + (unsigned int)tv.tv_nsec / NSEC_PER_MSEC);
>
> net/netfilter/xt_LOG.c: In function ‘log_packet_common’:
> net/netfilter/xt_LOG.c:507:4: warning: format ‘%u’ expects argument of
> type ‘unsigned int’, but argument 4 has type ‘long int’ [-Wformat]
>
> It has to be:
>
> sb_add(m, "TIMESTAMP=%li.%03u ", tv.tv_sec,
> (unsigned int)(tv.tv_nsec / NSEC_PER_MSEC));
> ^ ^
> I've fixed, no need to resend this patch.

This is why I submitted the "netfilter: ipt_LOG: add __printf() to
sb_add()" patch :)



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