Re: [PATCH 6/6] Netfilter: xt_LOG: Add timestamp support

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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@xxxxxx>
> ---
>  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.
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