netdev - Re: [PATCH iproute2-next 1/1] tc: report time an action was first used

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <85pnb1mc0p.fsf@mojatatu.com>
Date:   Mon, 18 May 2020 12:41:10 -0400
From:   Roman Mashak <mrv@...atatu.com>
To:     David Ahern <dsahern@...il.com>
Cc:     stephen@...workplumber.org, netdev@...r.kernel.org,
        kernel@...atatu.com, jhs@...atatu.com, xiyou.wangcong@...il.com,
        jiri@...nulli.us
Subject: Re: [PATCH iproute2-next 1/1] tc: report time an action was first used

David Ahern <dsahern@...il.com> writes:

> On 5/17/20 7:28 AM, Roman Mashak wrote:
>> Have print_tm() dump firstuse value along with install, lastuse
>> and expires.
>> 
>> Signed-off-by: Roman Mashak <mrv@...atatu.com>
>> ---
>>  tc/tc_util.c | 5 +++++
>>  1 file changed, 5 insertions(+)
>> 
>> diff --git a/tc/tc_util.c b/tc/tc_util.c
>> index 12f865cc71bf..f6aa2ed552a9 100644
>> --- a/tc/tc_util.c
>> +++ b/tc/tc_util.c
>> @@ -760,6 +760,11 @@ void print_tm(FILE *f, const struct tcf_t *tm)
>>  		print_uint(PRINT_FP, NULL, " used %u sec",
>>  			   (unsigned int)(tm->lastuse/hz));
>>  	}
>> +	if (tm->firstuse != 0) {
>> +		print_uint(PRINT_JSON, "first_used", NULL, tm->firstuse);
>> +		print_uint(PRINT_FP, NULL, " firstused %u sec",
>> +			   (unsigned int)(tm->firstuse/hz));
>> +	}
>>  	if (tm->expires != 0) {
>>  		print_uint(PRINT_JSON, "expires", NULL, tm->expires);
>>  		print_uint(PRINT_FP, NULL, " expires %u sec",
>> 
>
> why does this function print different values for json and stdout?

It prints times in jiffies for json mode, and in seconds otherwise. This
inconsistency is likely a bug, and a subject for another fix.

Last time this function was touched in commit
2704bd62558391c00bc1c3e7f8706de8332d8ba0 where json was added.