diff options
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/addrconf.c | 100 | ||||
| -rw-r--r-- | net/ipv6/ip6_output.c | 7 | ||||
| -rw-r--r-- | net/ipv6/xfrm6_mode_tunnel.c | 7 |
3 files changed, 104 insertions, 10 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index a33b157d9ccf..28b61e89bbb8 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -422,6 +422,7 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev) ipv6_regen_rndid((unsigned long) ndev); } #endif + ndev->token = in6addr_any; if (netif_running(dev) && addrconf_qdisc_ok(dev)) ndev->if_flags |= IF_READY; @@ -877,6 +878,7 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen, ifa->prefix_len = pfxlen; ifa->flags = flags | IFA_F_TENTATIVE; ifa->cstamp = ifa->tstamp = jiffies; + ifa->tokenized = false; ifa->rt = rt; @@ -2133,11 +2135,19 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len, bool sllao) struct inet6_ifaddr *ifp; struct in6_addr addr; int create = 0, update_lft = 0; + bool tokenized = false; if (pinfo->prefix_len == 64) { memcpy(&addr, &pinfo->prefix, 8); - if (ipv6_generate_eui64(addr.s6_addr + 8, dev) && - ipv6_inherit_eui64(addr.s6_addr + 8, in6_dev)) { + + if (!ipv6_addr_any(&in6_dev->token)) { + read_lock_bh(&in6_dev->lock); + memcpy(addr.s6_addr + 8, + in6_dev->token.s6_addr + 8, 8); + read_unlock_bh(&in6_dev->lock); + tokenized = true; + } else if (ipv6_generate_eui64(addr.s6_addr + 8, dev) && + ipv6_inherit_eui64(addr.s6_addr + 8, in6_dev)) { in6_dev_put(in6_dev); return; } @@ -2178,6 +2188,7 @@ ok: update_lft = create = 1; ifp->cstamp = jiffies; + ifp->tokenized = tokenized; addrconf_dad_start(ifp); } @@ -4165,7 +4176,8 @@ static inline size_t inet6_ifla6_size(void) + nla_total_size(sizeof(struct ifla_cacheinfo)) + nla_total_size(DEVCONF_MAX * 4) /* IFLA_INET6_CONF */ + nla_total_size(IPSTATS_MIB_MAX * 8) /* IFLA_INET6_STATS */ - + nla_total_size(ICMP6_MIB_MAX * 8); /* IFLA_INET6_ICMP6STATS */ + + nla_total_size(ICMP6_MIB_MAX * 8) /* IFLA_INET6_ICMP6STATS */ + + nla_total_size(sizeof(struct in6_addr)); /* IFLA_INET6_TOKEN */ } static inline size_t inet6_if_nlmsg_size(void) @@ -4252,6 +4264,13 @@ static int inet6_fill_ifla6_attrs(struct sk_buff *skb, struct inet6_dev *idev) goto nla_put_failure; snmp6_fill_stats(nla_data(nla), idev, IFLA_INET6_ICMP6STATS, nla_len(nla)); + nla = nla_reserve(skb, IFLA_INET6_TOKEN, sizeof(struct in6_addr)); + if (nla == NULL) + goto nla_put_failure; + read_lock_bh(&idev->lock); + memcpy(nla_data(nla), idev->token.s6_addr, nla_len(nla)); + read_unlock_bh(&idev->lock); + return 0; nla_put_failure: @@ -4279,6 +4298,80 @@ static int inet6_fill_link_af(struct sk_buff *skb, const struct net_device *dev) return 0; } +static int inet6_set_iftoken(struct inet6_dev *idev, struct in6_addr *token) +{ + struct inet6_ifaddr *ifp; + struct net_device *dev = idev->dev; + bool update_rs = false; + + if (token == NULL) + return -EINVAL; + if (ipv6_addr_any(token)) + return -EINVAL; + if (dev->flags & (IFF_LOOPBACK | IFF_NOARP)) + return -EINVAL; + if (!ipv6_accept_ra(idev)) + return -EINVAL; + if (idev->cnf.rtr_solicits <= 0) + return -EINVAL; + + write_lock_bh(&idev->lock); + + BUILD_BUG_ON(sizeof(token->s6_addr) != 16); + memcpy(idev->token.s6_addr + 8, token->s6_addr + 8, 8); + + write_unlock_bh(&idev->lock); + + if (!idev->dead && (idev->if_flags & IF_READY)) { + struct in6_addr ll_addr; + + ipv6_get_lladdr(dev, &ll_addr, IFA_F_TENTATIVE | + IFA_F_OPTIMISTIC); + + /* If we're not ready, then normal ifup will take care + * of this. Otherwise, we need to request our rs here. + */ + ndisc_send_rs(dev, &ll_addr, &in6addr_linklocal_allrouters); + update_rs = true; + } + + write_lock_bh(&idev->lock); + + if (update_rs) + idev->if_flags |= IF_RS_SENT; + + /* Well, that's kinda nasty ... */ + list_for_each_entry(ifp, &idev->addr_list, if_list) { + spin_lock(&ifp->lock); + if (ifp->tokenized) { + ifp->valid_lft = 0; + ifp->prefered_lft = 0; + } + spin_unlock(&ifp->lock); + } + + write_unlock_bh(&idev->lock); + return 0; +} + +static int inet6_set_link_af(struct net_device *dev, const struct nlattr *nla) +{ + int err = -EINVAL; + struct inet6_dev *idev = __in6_dev_get(dev); + struct nlattr *tb[IFLA_INET6_MAX + 1]; + + if (!idev) + return -EAFNOSUPPORT; + + if (nla_parse_nested(tb, IFLA_INET6_MAX, nla, NULL) < 0) + BUG(); + + if (tb[IFLA_INET6_TOKEN]) + err = inet6_set_iftoken(idev, nla_data(tb[IFLA_INET6_TOKEN])); + + return err; +} + static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev, u32 portid, u32 seq, int event, unsigned int flags) { @@ -4981,6 +5074,7 @@ static struct rtnl_af_ops inet6_ops = { .family = AF_INET6, .fill_link_af = inet6_fill_link_af, .get_link_af_size = inet6_get_link_af_size, + .set_link_af = inet6_set_link_af, }; /* diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 155eccfa7760..d2eedf192330 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1224,11 +1224,8 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to, } /* For UDP, check if TX timestamp is enabled */ - if (sk->sk_type == SOCK_DGRAM) { - err = sock_tx_timestamp(sk, &tx_flags); - if (err) - goto error; - } + if (sk->sk_type == SOCK_DGRAM) + sock_tx_timestamp(sk, &tx_flags); /* * Let's try using as much space as possible. diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c index 9bf6a74a71d2..4770d515c2c8 100644 --- a/net/ipv6/xfrm6_mode_tunnel.c +++ b/net/ipv6/xfrm6_mode_tunnel.c @@ -49,8 +49,11 @@ static int xfrm6_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb) sizeof(top_iph->flow_lbl)); top_iph->nexthdr = xfrm_af2proto(skb_dst(skb)->ops->family); - dsfield = XFRM_MODE_SKB_CB(skb)->tos; - dsfield = INET_ECN_encapsulate(dsfield, dsfield); + if (x->props.extra_flags & XFRM_SA_XFLAG_DONT_ENCAP_DSCP) + dsfield = 0; + else + dsfield = XFRM_MODE_SKB_CB(skb)->tos; + dsfield = INET_ECN_encapsulate(dsfield, XFRM_MODE_SKB_CB(skb)->tos); if (x->props.flags & XFRM_STATE_NOECN) dsfield &= ~INET_ECN_MASK; ipv6_change_dsfield(top_iph, 0, dsfield); |