From: Arnd Bergmann <arnd@arndb.de>
To: linux-security-module@vger.kernel.org
Subject: Re: [PATCH 3/3] net: rxrpc: Replace time_t type with time64_t type
Date: Wed, 09 Aug 2017 10:00:06 +0000 [thread overview]
Message-ID: <CAK8P3a3L11rXAV8-hE1fNtAZyMBNnQneRm5g7F8VDmk7HjQV4A@mail.gmail.com> (raw)
In-Reply-To: <6767.1502271233@warthog.procyon.org.uk>
On Wed, Aug 9, 2017 at 11:33 AM, David Howells <dhowells@redhat.com> wrote:
> Arnd Bergmann <arnd@arndb.de> wrote:
>
>> > @@ -533,8 +536,9 @@ static int rxrpc_preparse_xdr_rxk5(struct key_preparsed_payload *prep,
>> > pptoken = &(*pptoken)->next)
>> > continue;
>> > *pptoken = token;
>> > - if (token->kad->expiry < prep->expiry)
>> > - prep->expiry = token->kad->expiry;
>> ...
>>
>> I'm still slightly puzzled by what this function does: it does have four
>> timestamps (authtime, starttime, endtime, renew_till) that are all
>> transferred as 64-bit values and won't expire, but then it also uses the
>> 32-bit expiry field in rxrpc_key_token->kad->expiry instead of the 64-bit
>> rxrpc_key_token->k5 fields.
>
> Good catch. This is a cut'n'paste error. It should be using
> token->k5->expiry here not token->kad->expiry.
Do you know which format is used in practice? Are both kad and k5 common
among rxrpc users?
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: David Howells <dhowells@redhat.com>
Cc: Baolin Wang <baolin.wang@linaro.org>,
David Miller <davem@davemloft.net>,
james.l.morris@oracle.com, "Serge E. Hallyn" <serge@hallyn.com>,
marc.dionne@auristor.com,
Dan Carpenter <dan.carpenter@oracle.com>,
"Jason A. Donenfeld" <Jason@zx2c4.com>,
Mark Brown <broonie@kernel.org>,
keyrings@vger.kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
LSM List <linux-security-module@vger.kernel.org>,
Networking <netdev@vger.kernel.org>
Subject: Re: [PATCH 3/3] net: rxrpc: Replace time_t type with time64_t type
Date: Wed, 9 Aug 2017 12:00:06 +0200 [thread overview]
Message-ID: <CAK8P3a3L11rXAV8-hE1fNtAZyMBNnQneRm5g7F8VDmk7HjQV4A@mail.gmail.com> (raw)
In-Reply-To: <6767.1502271233@warthog.procyon.org.uk>
On Wed, Aug 9, 2017 at 11:33 AM, David Howells <dhowells@redhat.com> wrote:
> Arnd Bergmann <arnd@arndb.de> wrote:
>
>> > @@ -533,8 +536,9 @@ static int rxrpc_preparse_xdr_rxk5(struct key_preparsed_payload *prep,
>> > pptoken = &(*pptoken)->next)
>> > continue;
>> > *pptoken = token;
>> > - if (token->kad->expiry < prep->expiry)
>> > - prep->expiry = token->kad->expiry;
>> ...
>>
>> I'm still slightly puzzled by what this function does: it does have four
>> timestamps (authtime, starttime, endtime, renew_till) that are all
>> transferred as 64-bit values and won't expire, but then it also uses the
>> 32-bit expiry field in rxrpc_key_token->kad->expiry instead of the 64-bit
>> rxrpc_key_token->k5 fields.
>
> Good catch. This is a cut'n'paste error. It should be using
> token->k5->expiry here not token->kad->expiry.
Do you know which format is used in practice? Are both kad and k5 common
among rxrpc users?
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-security-module@vger.kernel.org
Subject: [PATCH 3/3] net: rxrpc: Replace time_t type with time64_t type
Date: Wed, 9 Aug 2017 12:00:06 +0200 [thread overview]
Message-ID: <CAK8P3a3L11rXAV8-hE1fNtAZyMBNnQneRm5g7F8VDmk7HjQV4A@mail.gmail.com> (raw)
In-Reply-To: <6767.1502271233@warthog.procyon.org.uk>
On Wed, Aug 9, 2017 at 11:33 AM, David Howells <dhowells@redhat.com> wrote:
> Arnd Bergmann <arnd@arndb.de> wrote:
>
>> > @@ -533,8 +536,9 @@ static int rxrpc_preparse_xdr_rxk5(struct key_preparsed_payload *prep,
>> > pptoken = &(*pptoken)->next)
>> > continue;
>> > *pptoken = token;
>> > - if (token->kad->expiry < prep->expiry)
>> > - prep->expiry = token->kad->expiry;
>> ...
>>
>> I'm still slightly puzzled by what this function does: it does have four
>> timestamps (authtime, starttime, endtime, renew_till) that are all
>> transferred as 64-bit values and won't expire, but then it also uses the
>> 32-bit expiry field in rxrpc_key_token->kad->expiry instead of the 64-bit
>> rxrpc_key_token->k5 fields.
>
> Good catch. This is a cut'n'paste error. It should be using
> token->k5->expiry here not token->kad->expiry.
Do you know which format is used in practice? Are both kad and k5 common
among rxrpc users?
Arnd
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next prev parent reply other threads:[~2017-08-09 10:00 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-09 2:51 [PATCH 0/3] Fix y2038 issues for security/keys subsystem Baolin Wang
2017-08-09 2:51 ` Baolin Wang
2017-08-09 2:51 ` Baolin Wang
2017-08-09 2:51 ` [PATCH 1/3] security: keys: Replace time_t/timespec with time64_t Baolin Wang
2017-08-09 2:51 ` Baolin Wang
2017-08-09 2:51 ` Baolin Wang
2017-08-09 2:51 ` [PATCH 2/3] security: keys: Replace time_t with time64_t for struct key_preparsed_payload Baolin Wang
2017-08-09 2:51 ` Baolin Wang
2017-08-09 2:51 ` Baolin Wang
2017-08-09 2:51 ` [PATCH 3/3] net: rxrpc: Replace time_t type with time64_t type Baolin Wang
2017-08-09 2:51 ` Baolin Wang
2017-08-09 2:51 ` Baolin Wang
2017-08-09 9:01 ` Arnd Bergmann
2017-08-09 9:01 ` Arnd Bergmann
2017-08-09 9:01 ` Arnd Bergmann
2017-08-09 9:33 ` David Howells
2017-08-09 9:33 ` David Howells
2017-08-09 9:33 ` David Howells
2017-08-09 10:00 ` Arnd Bergmann [this message]
2017-08-09 10:00 ` Arnd Bergmann
2017-08-09 10:00 ` Arnd Bergmann
2017-08-09 13:26 ` David Howells
2017-08-09 13:26 ` David Howells
2017-08-09 13:26 ` David Howells
2017-08-09 15:12 ` Arnd Bergmann
2017-08-09 15:12 ` Arnd Bergmann
2017-08-09 15:12 ` Arnd Bergmann
2017-08-09 15:45 ` David Howells
2017-08-09 15:45 ` David Howells
2017-08-09 15:45 ` David Howells
2017-08-09 8:28 ` [PATCH 0/3] Fix y2038 issues for security/keys subsystem David Howells
2017-08-09 8:28 ` David Howells
2017-08-09 8:28 ` David Howells
2017-08-10 1:59 ` Baolin Wang
2017-08-10 1:59 ` Baolin Wang
2017-08-10 1:59 ` Baolin Wang
2017-08-21 12:12 ` Baolin Wang
2017-08-21 12:12 ` Baolin Wang
2017-08-21 12:12 ` Baolin Wang
2017-09-15 8:38 ` Baolin Wang
2017-09-15 8:38 ` Baolin Wang
2017-09-15 8:38 ` Baolin Wang
2017-08-09 8:44 ` Arnd Bergmann
2017-08-09 8:44 ` Arnd Bergmann
2017-08-09 8:44 ` Arnd Bergmann
2017-08-10 2:00 ` Baolin Wang
2017-08-10 2:00 ` Baolin Wang
2017-08-10 2:00 ` Baolin Wang
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