svn commit: r273733 - head/sys/netinet/cc
George Neville-Neil
gnn at neville-neil.com
Mon Oct 27 15:46:03 UTC 2014
Can you modify this to preserve the limitation of TCP_CA_NAME_MAX ?
Best,
George
On 27 Oct 2014, at 7:21, Hans Petter Selasky wrote:
> Author: hselasky
> Date: Mon Oct 27 11:21:47 2014
> New Revision: 273733
> URL: https://svnweb.freebsd.org/changeset/base/273733
>
> Log:
> Make assignments to "net.inet.tcp.cc.algorithm" work by fixing a bad
> string comparison.
>
> MFC after: 3 days
> Reported by: Jukka Ukkonen <jau789 at gmail.com>
> Sponsored by: Mellanox Technologies
>
> Modified:
> head/sys/netinet/cc/cc.c
>
> Modified: head/sys/netinet/cc/cc.c
> ==============================================================================
> --- head/sys/netinet/cc/cc.c Mon Oct 27 10:34:09 2014 (r273732)
> +++ head/sys/netinet/cc/cc.c Mon Oct 27 11:21:47 2014 (r273733)
> @@ -106,11 +106,13 @@ cc_default_algo(SYSCTL_HANDLER_ARGS)
> /* Find algo with specified name and set it to default. */
> CC_LIST_RLOCK();
> STAILQ_FOREACH(funcs, &cc_list, entries) {
> - if (strncmp((char *)req->newptr, funcs->name,
> - TCP_CA_NAME_MAX) == 0) {
> - found = 1;
> - V_default_cc_ptr = funcs;
> - }
> + /* NOTE: "newptr" is not zero terminated */
> + if (req->newlen != strlen(funcs->name))
> + continue;
> + if (bcmp(req->newptr, funcs->name, req->newlen))
> + continue;
> + found = 1;
> + V_default_cc_ptr = funcs;
> }
> CC_LIST_RUNLOCK();
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