diff options
Diffstat (limited to '')
| -rw-r--r-- | net/ipv6/addrconf.c | 63 |
1 files changed, 40 insertions, 23 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index c134286d6a41..d51a8c0b3372 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -385,8 +385,6 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev) if (ndev->cnf.stable_secret.initialized) ndev->cnf.addr_gen_mode = IN6_ADDR_GEN_MODE_STABLE_PRIVACY; - else - ndev->cnf.addr_gen_mode = ipv6_devconf_dflt.addr_gen_mode; ndev->cnf.mtu6 = dev->mtu; ndev->nd_parms = neigh_parms_alloc(dev, &nd_tbl); @@ -2374,7 +2372,8 @@ static struct fib6_info *addrconf_get_prefix_route(const struct in6_addr *pfx, continue; if ((rt->fib6_flags & noflags) != 0) continue; - fib6_info_hold(rt); + if (!fib6_info_hold_safe(rt)) + continue; break; } out: @@ -2399,7 +2398,7 @@ static void addrconf_add_mroute(struct net_device *dev) ipv6_addr_set(&cfg.fc_dst, htonl(0xFF000000), 0, 0, 0); - ip6_route_add(&cfg, GFP_ATOMIC, NULL); + ip6_route_add(&cfg, GFP_KERNEL, NULL); } static struct inet6_dev *addrconf_add_dev(struct net_device *dev) @@ -3063,7 +3062,7 @@ static void sit_add_v4_addrs(struct inet6_dev *idev) if (addr.s6_addr32[3]) { add_addr(idev, &addr, plen, scope); addrconf_prefix_route(&addr, plen, 0, idev->dev, 0, pflags, - GFP_ATOMIC); + GFP_KERNEL); return; } @@ -3088,7 +3087,7 @@ static void sit_add_v4_addrs(struct inet6_dev *idev) add_addr(idev, &addr, plen, flag); addrconf_prefix_route(&addr, plen, 0, idev->dev, - 0, pflags, GFP_ATOMIC); + 0, pflags, GFP_KERNEL); } } } @@ -4528,6 +4527,7 @@ static int modify_prefix_route(struct inet6_ifaddr *ifp, unsigned long expires, u32 flags) { struct fib6_info *f6i; + u32 prio; f6i = addrconf_get_prefix_route(&ifp->addr, ifp->prefix_len, @@ -4536,13 +4536,15 @@ static int modify_prefix_route(struct inet6_ifaddr *ifp, if (!f6i) return -ENOENT; - if (f6i->fib6_metric != ifp->rt_priority) { + prio = ifp->rt_priority ? : IP6_RT_PRIO_ADDRCONF; + if (f6i->fib6_metric != prio) { + /* delete old one */ + ip6_del_rt(dev_net(ifp->idev->dev), f6i); + /* add new one */ addrconf_prefix_route(&ifp->addr, ifp->prefix_len, ifp->rt_priority, ifp->idev->dev, expires, flags, GFP_KERNEL); - /* delete old one */ - ip6_del_rt(dev_net(ifp->idev->dev), f6i); } else { if (!expires) fib6_clean_expires(f6i); @@ -5207,7 +5209,9 @@ static inline size_t inet6_ifla6_size(void) + 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(sizeof(struct in6_addr)); /* IFLA_INET6_TOKEN */ + + nla_total_size(sizeof(struct in6_addr)) /* IFLA_INET6_TOKEN */ + + nla_total_size(1) /* IFLA_INET6_ADDR_GEN_MODE */ + + 0; } static inline size_t inet6_if_nlmsg_size(void) @@ -5889,32 +5893,31 @@ static int addrconf_sysctl_addr_gen_mode(struct ctl_table *ctl, int write, loff_t *ppos) { int ret = 0; - int new_val; + u32 new_val; struct inet6_dev *idev = (struct inet6_dev *)ctl->extra1; struct net *net = (struct net *)ctl->extra2; + struct ctl_table tmp = { + .data = &new_val, + .maxlen = sizeof(new_val), + .mode = ctl->mode, + }; if (!rtnl_trylock()) return restart_syscall(); - ret = proc_dointvec(ctl, write, buffer, lenp, ppos); + new_val = *((u32 *)ctl->data); - if (write) { - new_val = *((int *)ctl->data); + ret = proc_douintvec(&tmp, write, buffer, lenp, ppos); + if (ret != 0) + goto out; + if (write) { if (check_addr_gen_mode(new_val) < 0) { ret = -EINVAL; goto out; } - /* request for default */ - if (&net->ipv6.devconf_dflt->addr_gen_mode == ctl->data) { - ipv6_devconf_dflt.addr_gen_mode = new_val; - - /* request for individual net device */ - } else { - if (!idev) - goto out; - + if (idev) { if (check_stable_privacy(idev, net, new_val) < 0) { ret = -EINVAL; goto out; @@ -5924,7 +5927,21 @@ static int addrconf_sysctl_addr_gen_mode(struct ctl_table *ctl, int write, idev->cnf.addr_gen_mode = new_val; addrconf_dev_config(idev->dev); } + } else if (&net->ipv6.devconf_all->addr_gen_mode == ctl->data) { + struct net_device *dev; + + net->ipv6.devconf_dflt->addr_gen_mode = new_val; + for_each_netdev(net, dev) { + idev = __in6_dev_get(dev); + if (idev && + idev->cnf.addr_gen_mode != new_val) { + idev->cnf.addr_gen_mode = new_val; + addrconf_dev_config(idev->dev); + } + } } + + *((u32 *)ctl->data) = new_val; } out: |