diff options
| author |   dlg <dlg@openbsd.org> | 2018-11-12 23:57:06 +0000 |
|---|---|---|
| committer | dlg <dlg@openbsd.org> | 2018-11-12 23:57:06 +0000 |
| commit | d8e64327b2012d806de974f61b22d1f46aa69829 (patch) | |
| tree | 71ad6e7ecb9253ed95e466ebea8f8534b57c22f6 | |
| parent | only let root configure the txprio setting on an interface (diff) | |
| download | wireguard-openbsd-d8e64327b2012d806de974f61b22d1f46aa69829.tar.xz wireguard-openbsd-d8e64327b2012d806de974f61b22d1f46aa69829.zip | |
add txprio support
etherip puts the prio in the encapsulating ip header, and supports
using hardcoded prio values or the prio from the mbuf. it encapsulates
ethernet, which doesnt have a prio field unelss you parse the ether
payload, which is not worth it.
ok claudio@
| -rw-r--r-- | sys/net/if_etherip.c | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/sys/net/if_etherip.c b/sys/net/if_etherip.c index cb00e8dbc88..9bf49612bdb 100644 --- a/sys/net/if_etherip.c +++ b/sys/net/if_etherip.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_etherip.c,v 1.39 2018/11/12 09:39:52 dlg Exp $ */ +/* $OpenBSD: if_etherip.c,v 1.40 2018/11/12 23:57:06 dlg Exp $ */ /* * Copyright (c) 2015 Kazuya GODA <goda@openbsd.org> * @@ -85,6 +85,7 @@ struct etherip_softc { struct etherip_tunnel sc_tunnel; /* must be first */ struct arpcom sc_ac; struct ifmedia sc_media; + int sc_txhprio; uint16_t sc_df; uint8_t sc_ttl; }; @@ -137,6 +138,7 @@ etherip_clone_create(struct if_clone *ifc, int unit) ifc->ifc_name, unit); sc->sc_ttl = ip_defttl; + sc->sc_txhprio = IFQ_TOS2PRIO(IPTOS_PREC_ROUTINE); /* 0 */ sc->sc_df = htons(0); ifp->if_softc = sc; @@ -283,6 +285,21 @@ etherip_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) error = etherip_del_tunnel(sc); break; + case SIOCSTXHPRIO: + if (ifr->ifr_hdrprio == IF_HDRPRIO_PACKET) /* use mbuf prio */ + ; + else if (ifr->ifr_hdrprio < IF_HDRPRIO_MIN || + ifr->ifr_hdrprio > IF_HDRPRIO_MAX) { + error = EINVAL; + break; + } + + sc->sc_txhprio = ifr->ifr_hdrprio; + break; + case SIOCGTXHPRIO: + ifr->ifr_hdrprio = sc->sc_txhprio; + break; + case SIOCSLIFPHYTTL: if (ifr->ifr_ttl < 1 || ifr->ifr_ttl > 0xff) { error = EINVAL; @@ -487,7 +504,8 @@ ip_etherip_output(struct ifnet *ifp, struct mbuf *m) ip->ip_v = IPVERSION; ip->ip_hl = sizeof(*ip) >> 2; - ip->ip_tos = IPTOS_LOWDELAY; + ip->ip_tos = IFQ_PRIO2TOS(sc->sc_txhprio == IF_HDRPRIO_PACKET ? + m->m_pkthdr.pf.prio : sc->sc_txhprio); ip->ip_len = htons(m->m_pkthdr.len); ip->ip_id = htons(ip_randomid()); ip->ip_off = sc->sc_df; @@ -623,6 +641,7 @@ ip6_etherip_output(struct ifnet *ifp, struct mbuf *m) struct ip6_hdr *ip6; struct etherip_header *eip; uint16_t len; + uint32_t flow; if (IN6_IS_ADDR_UNSPECIFIED(&sc->sc_tunnel.t_dst6)) { m_freem(m); @@ -637,10 +656,12 @@ ip6_etherip_output(struct ifnet *ifp, struct mbuf *m) return ENOBUFS; } + flow = IPV6_VERSION << 24; + flow |= IFQ_PRIO2TOS(sc->sc_txhprio == IF_HDRPRIO_PACKET ? + m->m_pkthdr.pf.prio : sc->sc_txhprio) << 20; + ip6 = mtod(m, struct ip6_hdr *); - ip6->ip6_flow = 0; - ip6->ip6_vfc &= ~IPV6_VERSION_MASK; - ip6->ip6_vfc |= IPV6_VERSION; + htobem32(&ip6->ip6_flow, flow); ip6->ip6_nxt = IPPROTO_ETHERIP; ip6->ip6_hlim = sc->sc_ttl; ip6->ip6_plen = htons(len); |