From: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
To: Chen Shen <peterchenshen@gmail.com>
Cc: vyasevich@gmail.com, nhorman@tuxdriver.com, davem@davemloft.net,
linux-sctp@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] sctp: delete addr based on sin6_scope_id
Date: Sun, 25 Jul 2021 20:01:12 -0300 [thread overview]
Message-ID: <YP3tOORtoNHZXQdt@horizon.localdomain> (raw)
In-Reply-To: <20210725124339.72884-1-peterchenshen@gmail.com>
Hi,
The fix is right, but a couple of small changes:
On Sun, Jul 25, 2021 at 08:43:39PM +0800, Chen Shen wrote:
> sctp_inet6addr_event deletes 'addr' from 'local_addr_list' when setting
> netdev down, but it has possibility to delete the incorroct entry (match
^ typo
> the first one with the same ipaddr, but the different 'ifindex'), if
> there are some netdevs with the same 'local-link' ipaddr added already.
> It should delete the entry depending on 'sin6_addr' and 'sin6_scope_id'
> both, otherwise, the endpoint will call 'sctp_sf_ootb' if it can't find
> the accroding association when receives 'heartbeat', and finally will
^^ typo
> reply 'abort' which causes the test case for NOKIA SYSCOM GW failed.
>
...
> diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
> index 52c92b8d827f..66ebf1e3383d 100644
> --- a/net/sctp/ipv6.c
> +++ b/net/sctp/ipv6.c
> @@ -100,7 +100,9 @@ static int sctp_inet6addr_event(struct notifier_block *this, unsigned long ev,
> &net->sctp.local_addr_list, list) {
> if (addr->a.sa.sa_family == AF_INET6 &&
> ipv6_addr_equal(&addr->a.v6.sin6_addr,
> - &ifa->addr)) {
> + &ifa->addr) &&
> + addr->a.v6.sin6_scope_id ==
> + ifa->idev->dev->ifindex) {
The indentation here is not right. It was wrong already, but lets
seize the moment and fix it. This is how it should look like:
if (addr->a.sa.sa_family == AF_INET6 &&
ipv6_addr_equal(&addr->a.v6.sin6_addr,
&ifa->addr) &&
addr->a.v6.sin6_scope_id == ifa->idev->dev->ifindex) {
Thanks,
Marcelo
> sctp_addr_wq_mgmt(net, addr, SCTP_ADDR_DEL);
> found = 1;
> addr->valid = 0;
> --
> 2.19.0
>
next prev parent reply other threads:[~2021-07-25 23:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-25 12:43 [PATCH] sctp: delete addr based on sin6_scope_id Chen Shen
2021-07-25 23:01 ` Marcelo Ricardo Leitner [this message]
2021-07-26 5:47 ` [PATCH v2] " Chen Shen
2021-07-26 11:40 ` patchwork-bot+netdevbpf
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