On Thu, Nov 12, 2015 at 01:07:07PM +0800, Xin Long wrote:
> now sctp auth cannot work well when setting a hmacid manually, which
> is caused by that we didn't use the network order for hmacid, so fix
> it by adding the transformation in sctp_auth_ep_set_hmacs.
>
> even we set hmacid with the network order in userspace, it still
> can't work, because of this condition in sctp_auth_ep_set_hmacs():
>
> if (id > SCTP_AUTH_HMAC_ID_MAX)
> return -EOPNOTSUPP;
>
> so this wasn't working before and thus it won't break compatibility.
>
> Signed-off-by: Xin Long <lucien.xin@xxxxxxxxx>
> Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@xxxxxxxxx>
Fixes: 65b07e5d0d09 ("[SCTP]: API updates to suport SCTP-AUTH
extensions.")
Thanks!
> ---
> net/sctp/auth.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/net/sctp/auth.c b/net/sctp/auth.c
> index 4f15b7d..1543e39 100644
> --- a/net/sctp/auth.c
> +++ b/net/sctp/auth.c
> @@ -809,8 +809,8 @@ int sctp_auth_ep_set_hmacs(struct sctp_endpoint *ep,
> if (!has_sha1)
> return -EINVAL;
>
> - memcpy(ep->auth_hmacs_list->hmac_ids, &hmacs->shmac_idents[0],
> - hmacs->shmac_num_idents * sizeof(__u16));
> + for (i = 0; i < hmacs->shmac_num_idents; i++)
> + ep->auth_hmacs_list->hmac_ids[i] = htons(hmacs->shmac_idents[i]);
> ep->auth_hmacs_list->param_hdr.length = htons(sizeof(sctp_paramhdr_t) +
> hmacs->shmac_num_idents * sizeof(__u16));
> return 0;
> --
> 2.1.0
>
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