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assert inp has correct IPv6 flag
Hello,
everything looks good to me. I have a question, see below.
On Fri, Jan 19, 2024 at 05:50:57PM +0100, Alexander Bluhm wrote:
</snip>
> Index: netinet/udp_usrreq.c
> ===================================================================
> RCS file: /data/mirror/openbsd/cvs/src/sys/netinet/udp_usrreq.c,v
> diff -u -p -r1.314 udp_usrreq.c
> --- netinet/udp_usrreq.c 19 Jan 2024 02:24:07 -0000 1.314
> +++ netinet/udp_usrreq.c 19 Jan 2024 16:00:13 -0000
> @@ -381,7 +381,7 @@ udp_input(struct mbuf **mp, int *offp, i
>
> if (m->m_flags & (M_BCAST|M_MCAST)) {
> SIMPLEQ_HEAD(, inpcb) inpcblist;
> - struct inpcbtable *tb;
> + struct inpcbtable *table;
>
> /*
> * Deliver a multicast or broadcast datagram to *all* sockets
</snip>
> @@ -406,23 +406,21 @@ udp_input(struct mbuf **mp, int *offp, i
> SIMPLEQ_INIT(&inpcblist);
> #ifdef INET6
> if (ip6)
> - tb = &udb6table;
> + table = &udb6table;
> else
> #endif
> - tb = &udbtable;
> + table = &udbtable;
>
> - rw_enter_write(&tb->inpt_notify);
> - mtx_enter(&tb->inpt_mtx);
> - TAILQ_FOREACH(inp, &tb->inpt_queue, inp_queue) {
> - if (inp->inp_socket->so_rcv.sb_state & SS_CANTRCVMORE)
> - continue;
> -#ifdef INET6
> - /* table is per AF, panic if it does not match */
> + rw_enter_write(&table->inpt_notify);
> + mtx_enter(&table->inpt_mtx);
> + TAILQ_FOREACH(inp, &table->inpt_queue, inp_queue) {
> if (ip6)
> KASSERT(ISSET(inp->inp_flags, INP_IPV6));
> else
> KASSERT(!ISSET(inp->inp_flags, INP_IPV6));
> -#endif
> +
> + if (inp->inp_socket->so_rcv.sb_state & SS_CANTRCVMORE)
> + continue;
> if (rtable_l2(inp->inp_rtableid) !=
> rtable_l2(m->m_pkthdr.ph_rtableid))
> continue;
is change above intentional? the check makes sense here, I'm just asking
because you have not mentioned that.
perhaps you might want to ask tb@ if it is ok to replace tb with table.
OK sashan
assert inp has correct IPv6 flag