diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-25 11:17:34 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-25 11:17:34 -0800 |
| commit | 4ba9920e5e9c0e16b5ed24292d45322907bb9035 (patch) | |
| tree | 7d023baea59ed0886ded1f0b6d1c6385690b88f7 /net/ipv6 | |
| parent | 82c477669a4665eb4e52030792051e0559ee2a36 (diff) | |
| parent | 8b662fe70c68282f78482dc272df0c4f355e49f5 (diff) | |
| download | linux-4ba9920e5e9c0e16b5ed24292d45322907bb9035.tar.bz2 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
1) BPF debugger and asm tool by Daniel Borkmann.
2) Speed up create/bind in AF_PACKET, also from Daniel Borkmann.
3) Correct reciprocal_divide and update users, from Hannes Frederic
Sowa and Daniel Borkmann.
4) Currently we only have a "set" operation for the hw timestamp socket
ioctl, add a "get" operation to match. From Ben Hutchings.
5) Add better trace events for debugging driver datapath problems, also
from Ben Hutchings.
6) Implement auto corking in TCP, from Eric Dumazet. Basically, if we
have a small send and a previous packet is already in the qdisc or
device queue, defer until TX completion or we get more data.
7) Allow userspace to manage ipv6 temporary addresses, from Jiri Pirko.
8) Add a qdisc bypass option for AF_PACKET sockets, from Daniel
Borkmann.
9) Share IP header compression code between Bluetooth and IEEE802154
layers, from Jukka Rissanen.
10) Fix ipv6 router reachability probing, from Jiri Benc.
11) Allow packets to be captured on macvtap devices, from Vlad Yasevich.
12) Support tunneling in GRO layer, from Jerry Chu.
13) Allow bonding to be configured fully using netlink, from Scott
Feldman.
14) Allow AF_PACKET users to obtain the VLAN TPID, just like they can
already get the TCI. From Atzm Watanabe.
15) New "Heavy Hitter" qdisc, from Terry Lam.
16) Significantly improve the IPSEC support in pktgen, from Fan Du.
17) Allow ipv4 tunnels to cache routes, just like sockets. From Tom
Herbert.
18) Add Proportional Integral Enhanced packet scheduler, from Vijay
Subramanian.
19) Allow openvswitch to mmap'd netlink, from Thomas Graf.
20) Key TCP metrics blobs also by source address, not just destination
address. From Christoph Paasch.
21) Support 10G in generic phylib. From Andy Fleming.
22) Try to short-circuit GRO flow compares using device provided RX
hash, if provided. From Tom Herbert.
The wireless and netfilter folks have been busy little bees too.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2064 commits)
net/cxgb4: Fix referencing freed adapter
ipv6: reallocate addrconf router for ipv6 address when lo device up
fib_frontend: fix possible NULL pointer dereference
rtnetlink: remove IFLA_BOND_SLAVE definition
rtnetlink: remove check for fill_slave_info in rtnl_have_link_slave_info
qlcnic: update version to 5.3.55
qlcnic: Enhance logic to calculate msix vectors.
qlcnic: Refactor interrupt coalescing code for all adapters.
qlcnic: Update poll controller code path
qlcnic: Interrupt code cleanup
qlcnic: Enhance Tx timeout debugging.
qlcnic: Use bool for rx_mac_learn.
bonding: fix u64 division
rtnetlink: add missing IFLA_BOND_AD_INFO_UNSPEC
sfc: Use the correct maximum TX DMA ring size for SFC9100
Add Shradha Shah as the sfc driver maintainer.
net/vxlan: Share RX skb de-marking and checksum checks with ovs
tulip: cleanup by using ARRAY_SIZE()
ip_tunnel: clear IPCB in ip_tunnel_xmit() in case dst_link_failure() is called
net/cxgb4: Don't retrieve stats during recovery
...
Diffstat (limited to 'net/ipv6')
38 files changed, 832 insertions, 642 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 4b6b720971b9..ad235690684c 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -442,6 +442,8 @@ static int inet6_netconf_msgsize_devconf(int type) if (type == -1 || type == NETCONFA_MC_FORWARDING) size += nla_total_size(4); #endif + if (type == -1 || type == NETCONFA_PROXY_NEIGH) + size += nla_total_size(4); return size; } @@ -475,6 +477,10 @@ static int inet6_netconf_fill_devconf(struct sk_buff *skb, int ifindex, devconf->mc_forwarding) < 0) goto nla_put_failure; #endif + if ((type == -1 || type == NETCONFA_PROXY_NEIGH) && + nla_put_s32(skb, NETCONFA_PROXY_NEIGH, devconf->proxy_ndp) < 0) + goto nla_put_failure; + return nlmsg_end(skb, nlh); nla_put_failure: @@ -509,6 +515,7 @@ errout: static const struct nla_policy devconf_ipv6_policy[NETCONFA_MAX+1] = { [NETCONFA_IFINDEX] = { .len = sizeof(int) }, [NETCONFA_FORWARDING] = { .len = sizeof(int) }, + [NETCONFA_PROXY_NEIGH] = { .len = sizeof(int) }, }; static int inet6_netconf_get_devconf(struct sk_buff *in_skb, @@ -834,6 +841,8 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, goto out; } + neigh_parms_data_state_setall(idev->nd_parms); + ifa->addr = *addr; if (peer_addr) ifa->peer_addr = *peer_addr; @@ -891,15 +900,95 @@ out: goto out2; } +enum cleanup_prefix_rt_t { + CLEANUP_PREFIX_RT_NOP, /* no cleanup action for prefix route */ + CLEANUP_PREFIX_RT_DEL, /* delete the prefix route */ + CLEANUP_PREFIX_RT_EXPIRE, /* update the lifetime of the prefix route */ +}; + +/* + * Check, whether the prefix for ifp would still need a prefix route + * after deleting ifp. The function returns one of the CLEANUP_PREFIX_RT_* + * constants. + * + * 1) we don't purge prefix if address was not permanent. + * prefix is managed by its own lifetime. + * 2) we also don't purge, if the address was IFA_F_NOPREFIXROUTE. + * 3) if there are no addresses, delete prefix. + * 4) if there are still other permanent address(es), + * corresponding prefix is still permanent. + * 5) if there are still other addresses with IFA_F_NOPREFIXROUTE, + * don't purge the prefix, assume user space is managing it. + * 6) otherwise, update prefix lifetime to the + * longest valid lifetime among the corresponding + * addresses on the device. + * Note: subsequent RA will update lifetime. + **/ +static enum cleanup_prefix_rt_t +check_cleanup_prefix_route(struct inet6_ifaddr *ifp, unsigned long *expires) +{ + struct inet6_ifaddr *ifa; + struct inet6_dev *idev = ifp->idev; + unsigned long lifetime; + enum cleanup_prefix_rt_t action = CLEANUP_PREFIX_RT_DEL; + + *expires = jiffies; + + list_for_each_entry(ifa, &idev->addr_list, if_list) { + if (ifa == ifp) + continue; + if (!ipv6_prefix_equal(&ifa->addr, &ifp->addr, + ifp->prefix_len)) + continue; + if (ifa->flags & (IFA_F_PERMANENT | IFA_F_NOPREFIXROUTE)) + return CLEANUP_PREFIX_RT_NOP; + + action = CLEANUP_PREFIX_RT_EXPIRE; + + spin_lock(&ifa->lock); + + lifetime = addrconf_timeout_fixup(ifa->valid_lft, HZ); + /* + * Note: Because this address is + * not permanent, lifetime < + * LONG_MAX / HZ here. + */ + if (time_before(*expires, ifa->tstamp + lifetime * HZ)) + *expires = ifa->tstamp + lifetime * HZ; + spin_unlock(&ifa->lock); + } + + return action; +} + +static void +cleanup_prefix_route(struct inet6_ifaddr *ifp, unsigned long expires, bool del_rt) +{ + struct rt6_info *rt; + + rt = addrconf_get_prefix_route(&ifp->addr, + ifp->prefix_len, + ifp->idev->dev, + 0, RTF_GATEWAY | RTF_DEFAULT); + if (rt) { + if (del_rt) + ip6_del_rt(rt); + else { + if (!(rt->rt6i_flags & RTF_EXPIRES)) + rt6_set_expires(rt, expires); + ip6_rt_put(rt); + } + } +} + + /* This function wants to get referenced ifp and releases it before return */ static void ipv6_del_addr(struct inet6_ifaddr *ifp) { - struct inet6_ifaddr *ifa, *ifn; - struct inet6_dev *idev = ifp->idev; int state; - int deleted = 0, onlink = 0; - unsigned long expires = jiffies; + enum cleanup_prefix_rt_t action = CLEANUP_PREFIX_RT_NOP; + unsigned long expires; spin_lock_bh(&ifp->state_lock); state = ifp->state; @@ -913,7 +1002,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp) hlist_del_init_rcu(&ifp->addr_lst); spin_unlock_bh(&addrconf_hash_lock); - write_lock_bh(&idev->lock); + write_lock_bh(&ifp->idev->lock); if (ifp->flags&IFA_F_TEMPORARY) { list_del(&ifp->tmp_list); @@ -924,45 +1013,13 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp) __in6_ifa_put(ifp); } - list_for_each_entry_safe(ifa, ifn, &idev->addr_list, if_list) { - if (ifa == ifp) { - list_del_init(&ifp->if_list); - __in6_ifa_put(ifp); + if (ifp->flags & IFA_F_PERMANENT && !(ifp->flags & IFA_F_NOPREFIXROUTE)) + action = check_cleanup_prefix_route(ifp, &expires); - if (!(ifp->flags & IFA_F_PERMANENT) || onlink > 0) - break; - deleted = 1; - continue; - } else if (ifp->flags & IFA_F_PERMANENT) { - if (ipv6_prefix_equal(&ifa->addr, &ifp->addr, - ifp->prefix_len)) { - if (ifa->flags & IFA_F_PERMANENT) { - onlink = 1; - if (deleted) - break; - } else { - unsigned long lifetime; - - if (!onlink) - onlink = -1; - - spin_lock(&ifa->lock); - - lifetime = addrconf_timeout_fixup(ifa->valid_lft, HZ); - /* - * Note: Because this address is - * not permanent, lifetime < - * LONG_MAX / HZ here. - */ - if (time_before(expires, - ifa->tstamp + lifetime * HZ)) - expires = ifa->tstamp + lifetime * HZ; - spin_unlock(&ifa->lock); - } - } - } - } - write_unlock_bh(&idev->lock); + list_del_init(&ifp->if_list); + __in6_ifa_put(ifp); + + write_unlock_bh(&ifp->idev->lock); addrconf_del_dad_timer(ifp); @@ -970,41 +1027,9 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp) inet6addr_notifier_call_chain(NETDEV_DOWN, ifp); - /* - * Purge or update corresponding prefix - * - * 1) we don't purge prefix here if address was not permanent. - * prefix is managed by its own lifetime. - * 2) if there're no addresses, delete prefix. - * 3) if there're still other permanent address(es), - * corresponding prefix is still permanent. - * 4) otherwise, update prefix lifetime to the - * longest valid lifetime among the corresponding - * addresses on the device. - * Note: subsequent RA will update lifetime. - * - * --yoshfuji - */ - if ((ifp->flags & IFA_F_PERMANENT) && onlink < 1) { - struct in6_addr prefix; - struct rt6_info *rt; - - ipv6_addr_prefix(&prefix, &ifp->addr, ifp->prefix_len); - - rt = addrconf_get_prefix_route(&prefix, - ifp->prefix_len, - ifp->idev->dev, - 0, RTF_GATEWAY | RTF_DEFAULT); - - if (rt) { - if (onlink == 0) { - ip6_del_rt(rt); - rt = NULL; - } else if (!(rt->rt6i_flags & RTF_EXPIRES)) { - rt6_set_expires(rt, expires); - } - } - ip6_rt_put(rt); + if (action != CLEANUP_PREFIX_RT_NOP) { + cleanup_prefix_route(ifp, expires, + action == CLEANUP_PREFIX_RT_DEL); } /* clean up prefsrc entries */ @@ -1024,7 +1049,7 @@ static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *i u32 addr_flags; unsigned long now = jiffies; - write_lock(&idev->lock); + write_lock_bh(&idev->lock); if (ift) { spin_lock_bh(&ift->lock); memcpy(&addr.s6_addr[8], &ift->addr.s6_addr[8], 8); @@ -1036,7 +1061,7 @@ static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *i retry: in6_dev_hold(idev); if (idev->cnf.use_tempaddr <= 0) { - write_unlock(&idev->lock); + write_unlock_bh(&idev->lock); pr_info("%s: use_tempaddr is disabled\n", __func__); in6_dev_put(idev); ret = -1; @@ -1046,7 +1071,7 @@ retry: if (ifp->regen_count++ >= idev->cnf.regen_max_retry) { idev->cnf.use_tempaddr = -1; /*XXX*/ spin_unlock_bh(&ifp->lock); - write_unlock(&idev->lock); + write_unlock_bh(&idev->lock); pr_warn("%s: regeneration time exceeded - disabled temporary address support\n", __func__); in6_dev_put(idev); @@ -1071,8 +1096,8 @@ retry: regen_advance = idev->cnf.regen_max_retry * idev->cnf.dad_transmits * - idev->nd_parms->retrans_time / HZ; - write_unlock(&idev->lock); + NEIGH_VAR(idev->nd_parms, RETRANS_TIME) / HZ; + write_unlock_bh(&idev->lock); /* A temporary address is created only if this calculated Preferred * Lifetime is greater than REGEN_ADVANCE time units. In particular, @@ -1099,7 +1124,7 @@ retry: in6_dev_put(idev); pr_info("%s: retry temporary address regeneration\n", __func__); tmpaddr = &addr; - write_lock(&idev->lock); + write_lock_bh(&idev->lock); goto retry; } @@ -1200,7 +1225,7 @@ static int ipv6_get_saddr_eval(struct net *net, * | d is scope of the destination. * B-d | \ * | \ <- smaller scope is better if - * B-15 | \ if scope is enough for destinaion. + * B-15 | \ if scope is enough for destination. * | ret = B - scope (-1 <= scope >= d <= 15). * d-C-1 | / * |/ <- greater is better @@ -1407,12 +1432,14 @@ try_nextdev: EXPORT_SYMBOL(ipv6_dev_get_saddr); int __ipv6_get_lladdr(struct inet6_dev *idev, struct in6_addr *addr, - unsigned char banned_flags) + u32 banned_flags) { struct inet6_ifaddr *ifp; int err = -EADDRNOTAVAIL; - list_for_each_entry(ifp, &idev->addr_list, if_list) { + list_for_each_entry_reverse(ifp, &idev->addr_list, if_list) { + if (ifp->scope > IFA_LINK) + break; if (ifp->scope == IFA_LINK && !(ifp->flags & banned_flags)) { *addr = ifp->addr; @@ -1424,7 +1451,7 @@ int __ipv6_get_lladdr(struct inet6_dev *idev, struct in6_addr *addr, } int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr, - unsigned char banned_flags) + u32 banned_flags) { struct inet6_dev *idev; int err = -EADDRNOTAVAIL; @@ -1816,6 +1843,7 @@ static int ipv6_generate_eui64(u8 *eui, struct net_device *dev) return addrconf_ifid_sit(eui, dev); case ARPHRD_IPGRE: return addrconf_ifid_gre(eui, dev); + case ARPHRD_6LOWPAN: case ARPHRD_IEEE802154: return addrconf_ifid_eui64(eui, dev); case ARPHRD_IEEE1394: @@ -1832,7 +1860,9 @@ static int ipv6_inherit_eui64(u8 *eui, struct inet6_dev *idev) struct inet6_ifaddr *ifp; read_lock_bh(&idev->lock); - list_for_each_entry(ifp, &idev->addr_list, if_list) { + list_for_each_entry_reverse(ifp, &idev->addr_list, if_list) { + if (ifp->scope > IFA_LINK) + break; if (ifp->scope == IFA_LINK && !(ifp->flags&IFA_F_TENTATIVE)) { memcpy(eui, ifp->addr.s6_addr+8, 8); err = 0; @@ -1888,7 +1918,8 @@ static void ipv6_regen_rndid(unsigned long data) expires = jiffies + idev->cnf.temp_prefered_lft * HZ - - idev->cnf.regen_max_retry * idev->cnf.dad_transmits * idev->nd_parms->retrans_time - + idev->cnf.regen_max_retry * idev->cnf.dad_transmits * + NEIGH_VAR(idev->nd_parms, RETRANS_TIME) - idev->cnf.max_desync_factor * HZ; if (time_before(expires, jiffies)) { pr_warn("%s: too short regeneration interval; timer disabled for %s\n", @@ -2016,6 +2047,73 @@ static struct inet6_dev *addrconf_add_dev(struct net_device *dev) return idev; } +static void manage_tempaddrs(struct inet6_dev *idev, + struct inet6_ifaddr *ifp, + __u32 valid_lft, __u32 prefered_lft, + bool create, unsigned long now) +{ + u32 flags; + struct inet6_ifaddr *ift; + + read_lock_bh(&idev->lock); + /* update all temporary addresses in the list */ + list_for_each_entry(ift, &idev->tempaddr_list, tmp_list) { + int age, max_valid, max_prefered; + + if (ifp != ift->ifpub) + continue; + + /* RFC 4941 section 3.3: + * If a received option will extend the lifetime of a public + * address, the lifetimes of temporary addresses should + * be extended, subject to the overall constraint that no + * temporary addresses should ever remain "valid" or "preferred" + * for a time longer than (TEMP_VALID_LIFETIME) or + * (TEMP_PREFERRED_LIFETIME - DESYNC_FACTOR), respectively. + */ + age = (now - ift->cstamp) / HZ; + max_valid = idev->cnf.temp_valid_lft - age; + if (max_valid < 0) + max_valid = 0; + + max_prefered = idev->cnf.temp_prefered_lft - + idev->cnf.max_desync_factor - age; + if (max_prefered < 0) + max_prefered = 0; + + if (valid_lft > max_valid) + valid_lft = max_valid; + + if (prefered_lft > max_prefered) + prefered_lft = max_prefered; + + spin_lock(&ift->lock); + flags = ift->flags; + ift->valid_lft = valid_lft; + ift->prefered_lft = prefered_lft; + ift->tstamp = now; + if (prefered_lft > 0) + ift->flags &= ~IFA_F_DEPRECATED; + + spin_unlock(&ift->lock); + if (!(flags&IFA_F_TENTATIVE)) + ipv6_ifa_notify(0, ift); + } + + if ((create || list_empty(&idev->tempaddr_list)) && + idev->cnf.use_tempaddr > 0) { + /* When a new public address is created as described + * in [ADDRCONF], also create a new temporary address. + * Also create a temporary address if it's enabled but + * no temporary address currently exists. + */ + read_unlock_bh(&idev->lock); + ipv6_create_tempaddr(ifp, NULL); + } else { + read_unlock_bh(&idev->lock); + } +} + void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len, bool sllao) { struct prefix_info *pinfo; @@ -2170,6 +2268,7 @@ ok: return; } + ifp->flags |= IFA_F_MANAGETEMPADDR; update_lft = 0; create = 1; ifp->cstamp = jiffies; @@ -2178,9 +2277,8 @@ ok: } if (ifp) { - int flags; + u32 flags; unsigned long now; - struct inet6_ifaddr *ift; u32 stored_lft; /* update lifetime (RFC2462 5.5.3 e) */ @@ -2221,70 +2319,8 @@ ok: } else spin_unlock(&ifp->lock); - read_lock_bh(&in6_dev->lock); - /* update all temporary addresses in the list */ - list_for_each_entry(ift, &in6_dev->tempaddr_list, - tmp_list) { - int age, max_valid, max_prefered; - - if (ifp != ift->ifpub) - continue; - - /* - * RFC 4941 section 3.3: - * If a received option will extend the lifetime - * of a public address, the lifetimes of - * temporary addresses should be extended, - * subject to the overall constraint that no - * temporary addresses should ever remain - * "valid" or "preferred" for a time longer than - * (TEMP_VALID_LIFETIME) or - * (TEMP_PREFERRED_LIFETIME - DESYNC_FACTOR), - * respectively. - */ - age = (now - ift->cstamp) / HZ; - max_valid = in6_dev->cnf.temp_valid_lft - age; - if (max_valid < 0) - max_valid = 0; - - max_prefered = in6_dev->cnf.temp_prefered_lft - - in6_dev->cnf.max_desync_factor - - age; - if (max_prefered < 0) - max_prefered = 0; - - if (valid_lft > max_valid) - valid_lft = max_valid; - - if (prefered_lft > max_prefered) - prefered_lft = max_prefered; - - spin_lock(&ift->lock); - flags = ift->flags; - ift->valid_lft = valid_lft; - ift->prefered_lft = prefered_lft; - ift->tstamp = now; - if (prefered_lft > 0) - ift->flags &= ~IFA_F_DEPRECATED; - - spin_unlock(&ift->lock); - if (!(flags&IFA_F_TENTATIVE)) - ipv6_ifa_notify(0, ift); - } - - if ((create || list_empty(&in6_dev->tempaddr_list)) && in6_dev->cnf.use_tempaddr > 0) { - /* - * When a new public address is created as - * described in [ADDRCONF], also create a new - * temporary address. Also create a temporary - * address if it's enabled but no temporary - * address currently exists. - */ - read_unlock_bh(&in6_dev->lock); - ipv6_create_tempaddr(ifp, NULL); - } else { - read_unlock_bh(&in6_dev->lock); - } + manage_tempaddrs(in6_dev, ifp, valid_lft, prefered_lft, + create, now); in6_ifa_put(ifp); addrconf_verify(0); @@ -2363,10 +2399,11 @@ err_exit: /* * Manual configuration of address on an interface */ -static int inet6_addr_add(struct net *net, int ifindex, const struct in6_addr *pfx, +static int inet6_addr_add(struct net *net, int ifindex, + const struct in6_addr *pfx, const struct in6_addr *peer_pfx, - unsigned int plen, __u8 ifa_flags, __u32 prefered_lft, - __u32 valid_lft) + unsigned int plen, __u32 ifa_flags, + __u32 prefered_lft, __u32 valid_lft) { struct inet6_ifaddr *ifp; struct inet6_dev *idev; @@ -2385,6 +2422,9 @@ static int inet6_addr_add(struct net *net, int ifindex, const struct in6_addr *p if (!valid_lft || prefered_lft > valid_lft) return -EINVAL; + if (ifa_flags & IFA_F_MANAGETEMPADDR && plen != 64) + return -EINVAL; + dev = __dev_get_by_index(net, ifindex); if (!dev) return -ENODEV; @@ -2417,14 +2457,20 @@ static int inet6_addr_add(struct net *net, int ifindex, const struct in6_addr *p valid_lft, prefered_lft); if (!IS_ERR(ifp)) { - addrconf_prefix_route(&ifp->addr, ifp->prefix_len, dev, - expires, flags); + if (!(ifa_flags & IFA_F_NOPREFIXROUTE)) { + addrconf_prefix_route(&ifp->addr, ifp->prefix_len, dev, + expires, flags); + } + /* * Note that section 3.1 of RFC 4429 indicates * that the Optimistic flag should not be set for * manually configured addresses */ addrconf_dad_start(ifp); + if (ifa_flags & IFA_F_MANAGETEMPADDR) + manage_tempaddrs(idev, ifp, valid_lft, prefered_lft, + true, jiffies); in6_ifa_put(ifp); addrconf_verify(0); return 0; @@ -2611,8 +2657,18 @@ static void init_loopback(struct net_device *dev) if (sp_ifa->flags & (IFA_F_DADFAILED | IFA_F_TENTATIVE)) continue; - if (sp_ifa->rt) - continue; + if (sp_ifa->rt) { + /* This dst has been added to garbage list when + * lo device down, release this obsolete dst and + * reallocate a new router for ifa. + */ + if (sp_ifa->rt->dst.obsolete > 0) { + ip6_rt_put(sp_ifa->rt); + sp_ifa->rt = NULL; + } else { + continue; + } + } sp_rt = addrconf_dst_alloc(idev, &sp_ifa->addr, false); @@ -2660,7 +2716,8 @@ static void addrconf_dev_config(struct net_device *dev) (dev->type != ARPHRD_INFINIBAND) && (dev->type != ARPHRD_IEEE802154) && (dev->type != ARPHRD_IEEE1394) && - (dev->type != ARPHRD_TUNNEL6)) { + (dev->type != ARPHRD_TUNNEL6) && + (dev->type != ARPHRD_6LOWPAN)) { /* Alas, we support only Ethernet autoconfiguration. */ return; } @@ -2857,7 +2914,7 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event, } /* - * MTU falled under IPV6_MIN_MTU. + * if MTU under IPV6_MIN_MTU. * Stop IPv6 on this interface. */ @@ -3083,7 +3140,7 @@ static void addrconf_dad_kick(struct inet6_ifaddr *ifp) if (ifp->flags & IFA_F_OPTIMISTIC) rand_num = 0; else - rand_num = net_random() % (idev->cnf.rtr_solicit_delay ? : 1); + rand_num = prandom_u32() % (idev->cnf.rtr_solicit_delay ? : 1); ifp->dad_probes = idev->cnf.dad_transmits; addrconf_mod_dad_timer(ifp, rand_num); @@ -3096,7 +3153,7 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp) addrconf_join_solict(dev, &ifp->addr); - net_srandom(ifp->addr.s6_addr32[3]); + prandom_seed((__force u32) ifp->addr.s6_addr32[3]); read_lock_bh(&idev->lock); spin_lock(&ifp->lock); @@ -3178,7 +3235,8 @@ static void addrconf_dad_timer(unsigned long data) } ifp->dad_probes--; - addrconf_mod_dad_timer(ifp, ifp->idev->nd_parms->retrans_time); + addrconf_mod_dad_timer(ifp, + NEIGH_VAR(ifp->idev->nd_parms, RETRANS_TIME)); spin_unlock(&ifp->lock); write_unlock(&idev->lock); @@ -3195,7 +3253,9 @@ static bool ipv6_lonely_lladdr(struct inet6_ifaddr *ifp) struct inet6_ifaddr *ifpiter; struct inet6_dev *idev = ifp->idev; - list_for_each_entry(ifpiter, &idev->addr_list, if_list) { + list_for_each_entry_reverse(ifpiter, &idev->addr_list, if_list) { + if (ifpiter->scope > IFA_LINK) + break; if (ifp != ifpiter && ifpiter->scope == IFA_LINK && (ifpiter->flags & (IFA_F_PERMANENT|IFA_F_TENTATIVE| IFA_F_OPTIMISTIC|IFA_F_DADFAILED)) == @@ -3371,7 +3431,7 @@ static int if6_seq_show(struct seq_file *seq, void *v) ifp->idev->dev->ifindex, ifp->prefix_len, ifp->scope, - ifp->flags, + (u8) ifp->flags, ifp->idev->dev->name); return 0; } @@ -3518,7 +3578,7 @@ restart: !(ifp->flags&IFA_F_TENTATIVE)) { unsigned long regen_advance = ifp->idev->cnf.regen_max_retry * ifp->idev->cnf.dad_transmits * - ifp->idev->nd_parms->retrans_time / HZ; + NEIGH_VAR(ifp->idev->nd_parms, RETRANS_TIME) / HZ; if (age >= ifp->prefered_lft - regen_advance) { struct inet6_ifaddr *ifpub = ifp->ifpub; @@ -3593,6 +3653,7 @@ static const struct nla_policy ifa_ipv6_policy[IFA_MAX+1] = { [IFA_ADDRESS] = { .len = sizeof(struct in6_addr) }, [IFA_LOCAL] = { .len = sizeof(struct in6_addr) }, [IFA_CACHEINFO] = { .len = sizeof(struct ifa_cacheinfo) }, + [IFA_FLAGS] = { .len = sizeof(u32) }, }; static int @@ -3616,16 +3677,22 @@ inet6_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh) return inet6_addr_del(net, ifm->ifa_index, pfx, ifm->ifa_prefixlen); } -static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags, +static int inet6_addr_modify(struct inet6_ifaddr *ifp, u32 ifa_flags, u32 prefered_lft, u32 valid_lft) { u32 flags; clock_t expires; unsigned long timeout; + bool was_managetempaddr; + bool had_prefixroute; if (!valid_lft || (prefered_lft > valid_lft)) return -EINVAL; + if (ifa_flags & IFA_F_MANAGETEMPADDR && + (ifp->flags & IFA_F_TEMPORARY || ifp->prefix_len != 64)) + return -EINVAL; + timeout = addrconf_timeout_fixup(valid_lft, HZ); if (addrconf_finite_timeout(timeout)) { expires = jiffies_to_clock_t(timeout * HZ); @@ -3645,7 +3712,13 @@ static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags, } spin_lock_bh(&ifp->lock); - ifp->flags = (ifp->flags & ~(IFA_F_DEPRECATED | IFA_F_PERMANENT | IFA_F_NODAD | IFA_F_HOMEADDRESS)) | ifa_flags; + was_managetempaddr = ifp->flags & IFA_F_MANAGETEMPADDR; + had_prefixroute = ifp->flags & IFA_F_PERMANENT && + !(ifp->flags & IFA_F_NOPREFIXROUTE); + ifp->flags &= ~(IFA_F_DEPRECATED | IFA_F_PERMANENT | IFA_F_NODAD | + IFA_F_HOMEADDRESS | IFA_F_MANAGETEMPADDR | + IFA_F_NOPREFIXROUTE); + ifp->flags |= ifa_flags; ifp->tstamp = jiffies; ifp->valid_lft = valid_lft; ifp->prefered_lft = prefered_lft; @@ -3654,8 +3727,30 @@ static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags, if (!(ifp->flags&IFA_F_TENTATIVE)) ipv6_ifa_notify(0, ifp); - addrconf_prefix_route(&ifp->addr, ifp->prefix_len, ifp->idev->dev, - expires, flags); + if (!(ifa_flags & IFA_F_NOPREFIXROUTE)) { + addrconf_prefix_route(&ifp->addr, ifp->prefix_len, ifp->idev->dev, + expires, flags); + } else if (had_prefixroute) { + enum cleanup_prefix_rt_t action; + unsigned long rt_expires; + + write_lock_bh(&ifp->idev->lock); + action = check_cleanup_prefix_route(ifp, &rt_expires); + write_unlock_bh(&ifp->idev->lock); + + if (action != CLEANUP_PREFIX_RT_NOP) { + cleanup_prefix_route(ifp, rt_expires, + action == CLEANUP_PREFIX_RT_DEL); + } + } + + if (was_managetempaddr || ifp->flags & IFA_F_MANAGETEMPADDR) { + if (was_managetempaddr && !(ifp->flags & IFA_F_MANAGETEMPADDR)) + valid_lft = prefered_lft = 0; + manage_tempaddrs(ifp->idev, ifp, valid_lft, prefered_lft, + !was_managetempaddr, jiffies); + } + addrconf_verify(0); return 0; @@ -3671,7 +3766,7 @@ inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh) struct inet6_ifaddr *ifa; struct net_device *dev; u32 valid_lft = INFINITY_LIFE_TIME, preferred_lft = INFINITY_LIFE_TIME; - u8 ifa_flags; + u32 ifa_flags; int err; err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, ifa_ipv6_policy); @@ -3698,14 +3793,17 @@ inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh) if (dev == NULL) return -ENODEV; + ifa_flags = tb[IFA_FLAGS] ? nla_get_u32(tb[IFA_FLAGS]) : ifm->ifa_flags; + /* We ignore other flags so far. */ - ifa_flags = ifm->ifa_flags & (IFA_F_NODAD | IFA_F_HOMEADDRESS); + ifa_flags &= IFA_F_NODAD | IFA_F_HOMEADDRESS | IFA_F_MANAGETEMPADDR | + IFA_F_NOPREFIXROUTE; ifa = ipv6_get_ifaddr(net, pfx, dev, 1); if (ifa == NULL) { /* * It would be best to check for !NLM_F_CREATE here but - * userspace alreay relies on not having to provide this. + * userspace already relies on not having to provide this. */ return inet6_addr_add(net, ifm->ifa_index, pfx, peer_pfx, ifm->ifa_prefixlen, ifa_flags, @@ -3723,7 +3821,7 @@ inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh) return err; } -static void put_ifaddrmsg(struct nlmsghdr *nlh, u8 prefixlen, u8 flags, +static void put_ifaddrmsg(struct nlmsghdr *nlh, u8 prefixlen, u32 flags, u8 scope, int ifindex) { struct ifaddrmsg *ifm; @@ -3766,7 +3864,8 @@ static inline int inet6_ifaddr_msgsize(void) return NLMSG_ALIGN(sizeof(struct ifaddrmsg)) + nla_total_size(16) /* IFA_LOCAL */ + nla_total_size(16) /* IFA_ADDRESS */ - + nla_total_size(sizeof(struct ifa_cacheinfo)); + + nla_total_size(sizeof(struct ifa_cacheinfo)) + + nla_total_size(4) /* IFA_FLAGS */; } static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa, @@ -3815,6 +3914,9 @@ static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa, if (put_cacheinfo(skb, ifa->cstamp, ifa->tstamp, preferred, valid) < 0) goto error; + if (nla_put_u32(skb, IFA_FLAGS, ifa->flags) < 0) + goto error; + return nlmsg_end(skb, nlh); error: @@ -4218,7 +4320,7 @@ static int inet6_fill_ifla6_attrs(struct sk_buff *skb, struct inet6_dev *idev) ci.max_reasm_len = IPV6_MAXPLEN; ci.tstamp = cstamp_delta(idev->tstamp); ci.reachable_time = jiffies_to_msecs(idev->nd_parms->reachable_time); - ci.retrans_time = jiffies_to_msecs(idev->nd_parms->retrans_time); + ci.retrans_time = jiffies_to_msecs(NEIGH_VAR(idev->nd_parms, RETRANS_TIME)); if (nla_put(skb, IFLA_INET6_CACHEINFO, sizeof(ci), &ci)) goto nla_put_failure; nla = nla_reserve(skb, IFLA_INET6_CONF, DEVCONF_MAX * sizeof(s32)); @@ -4694,6 +4796,46 @@ int addrconf_sysctl_disable(struct ctl_table *ctl, int write, return ret; } +static +int addrconf_sysctl_proxy_ndp(struct ctl_table *ctl, int write, + void __user *buffer, size_t *lenp, loff_t *ppos) +{ + int *valp = ctl->data; + int ret; + int old, new; + + old = *valp; + ret = proc_dointvec(ctl, write, buffer, lenp, ppos); + new = *valp; + + if (write && old != new) { + struct net *net = ctl->extra2; + + if (!rtnl_trylock()) + return restart_syscall(); + + if (valp == &net->ipv6.devconf_dflt->proxy_ndp) + inet6_netconf_notify_devconf(net, NETCONFA_PROXY_NEIGH, + NETCONFA_IFINDEX_DEFAULT, + net->ipv6.devconf_dflt); + else if (valp == &net->ipv6.devconf_all->proxy_ndp) + inet6_netconf_notify_devconf(net, NETCONFA_PROXY_NEIGH, + NETCONFA_IFINDEX_ALL, + net->ipv6.devconf_all); + else { + struct inet6_dev *idev = ctl->extra1; + + inet6_netconf_notify_devconf(net, NETCONFA_PROXY_NEIGH, + idev->dev->ifindex, + &idev->cnf); + } + rtnl_unlock(); + } + + return ret; +} + + static struct addrconf_sysctl_table { struct ctl_table_header *sysctl_header; @@ -4880,7 +5022,7 @@ static struct addrconf_sysctl_table .data = &ipv6_devconf.proxy_ndp, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = proc_dointvec, + .proc_handler = addrconf_sysctl_proxy_ndp, }, { .procname = "accept_source_route", @@ -4996,7 +5138,7 @@ static void __addrconf_sysctl_unregister(struct ipv6_devconf *p) static void addrconf_sysctl_register(struct inet6_dev *idev) { - neigh_sysctl_register(idev->dev, idev->nd_parms, "ipv6", + neigh_sysctl_register(idev->dev, idev->nd_parms, &ndisc_ifinfo_sysctl_change); __addrconf_sysctl_register(dev_net(idev->dev), idev->dev->name, idev, &idev->cnf); @@ -5129,9 +5271,7 @@ int __init addrconf_init(void) addrconf_verify(0); - err = rtnl_af_register(&inet6_ops); - if (err < 0) - goto errout_af; + rtnl_af_register(&inet6_ops); err = __rtnl_register(PF_INET6, RTM_GETLINK, NULL, inet6_dump_ifinfo, NULL); @@ -5155,7 +5295,6 @@ int __init addrconf_init(void) return 0; errout: rtnl_af_unregister(&inet6_ops); -errout_af: unregister_netdevice_notifier(&ipv6_dev_notf); errlo: unregister_pernet_subsys(&addrconf_ops); diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 4fbdb7046d28..d935889f1008 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -213,7 +213,7 @@ lookup_protocol: inet->mc_list = NULL; inet->rcv_tos = 0; - if (ipv4_config.no_pmtu_disc) + if (net->ipv4.sysctl_ip_no_pmtu_disc) inet->pmtudisc = IP_PMTUDISC_DONT; else inet->pmtudisc = IP_PMTUDISC_WANT; @@ -661,7 +661,7 @@ int inet6_sk_rebuild_header(struct sock *sk) final_p = fl6_update_dst(&fl6, np->opt, &final); - dst = ip6_dst_lookup_flow(sk, &fl6, final_p, false); + dst = ip6_dst_lookup_flow(sk, &fl6, final_p); if (IS_ERR(dst)) { sk->sk_route_caps = 0; sk->sk_err_soft = -PTR_ERR(dst); @@ -683,8 +683,7 @@ bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb) if (np->rxopt.all) { if ((opt->hop && (np->rxopt.bits.hopopts || np->rxopt.bits.ohopopts)) || - ((IPV6_FLOWINFO_MASK & - *(__be32 *)skb_network_header(skb)) && + (ip6_flowinfo((struct ipv6hdr *) skb_network_header(skb)) && np->rxopt.bits.rxflow) || (opt->srcrt && (np->rxopt.bits.srcrt || np->rxopt.bits.osrcrt)) || @@ -776,6 +775,7 @@ static int __net_init inet6_net_init(struct net *net) net->ipv6.sysctl.bindv6only = 0; net->ipv6.sysctl.icmpv6_time = 1*HZ; + net->ipv6.sysctl.flowlabel_consistency = 1; atomic_set(&net->ipv6.rt_genid, 0); err = ipv6_init_mibs(net); diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c index 82e1da3a40b9..81e496a2e008 100644 --- a/net/ipv6/ah6.c +++ b/net/ipv6/ah6.c @@ -12,8 +12,7 @@ * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * along with this program; if not, see <http://www.gnu.org/licenses/>. * * Authors * diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c index 5a80f15a9de2..210183244689 100644 --- a/net/ipv6/anycast.c +++ b/net/ipv6/anycast.c @@ -383,6 +383,17 @@ bool ipv6_chk_acast_addr(struct net *net, struct net_device *dev, return found; } +/* check if this anycast address is link-local on given interface or + * is global + */ +bool ipv6_chk_acast_addr_src(struct net *net, struct net_device *dev, + const struct in6_addr *addr) +{ + return ipv6_chk_acast_addr(net, + (ipv6_addr_type(addr) & IPV6_ADDR_LINKLOCAL ? + dev : NULL), + addr); +} #ifdef CONFIG_PROC_FS struct ac6_iter_state { diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c index 93b1aa34c432..c3bf2d2e519e 100644 --- a/net/ipv6/datagram.c +++ b/net/ipv6/datagram.c @@ -170,7 +170,7 @@ ipv4_connected: opt = flowlabel ? flowlabel->opt : np->opt; final_p = fl6_update_dst(&fl6, opt, &final); - dst = ip6_dst_lookup_flow(sk, &fl6, final_p, true); + dst = ip6_dst_lookup_flow(sk, &fl6, final_p); err = 0; if (IS_ERR(dst)) { err = PTR_ERR(dst); @@ -205,6 +205,16 @@ out: } EXPORT_SYMBOL_GPL(ip6_datagram_connect); +int ip6_datagram_connect_v6_only(struct sock *sk, struct sockaddr *uaddr, + int addr_len) +{ + DECLARE_SOCKADDR(struct sockaddr_in6 *, sin6, uaddr); + if (sin6->sin6_family != AF_INET6) + return -EAFNOSUPPORT; + return ip6_datagram_connect(sk, uaddr, addr_len); +} +EXPORT_SYMBOL_GPL(ip6_datagram_connect_v6_only); + void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port, u32 info, u8 *payload) { @@ -322,7 +332,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len) struct ipv6_pinfo *np = inet6_sk(sk); struct sock_exterr_skb *serr; struct sk_buff *skb, *skb2; - struct sockaddr_in6 *sin; + DECLARE_SOCKADDR(struct sockaddr_in6 *, sin, msg->msg_name); struct { struct sock_extended_err ee; struct sockaddr_in6 offender; @@ -348,7 +358,6 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len) serr = SKB_EXT_ERR(skb); - sin = (struct sockaddr_in6 *)msg->msg_name; if (sin) { const unsigned char *nh = skb_network_header(skb); sin->sin6_family = AF_INET6; @@ -378,10 +387,12 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len) sin->sin6_family = AF_INET6; sin->sin6_flowinfo = 0; sin->sin6_port = 0; + if (np->rxopt.all) + ip6_datagram_recv_common_ctl(sk, msg, skb); if (skb->protocol == htons(ETH_P_IPV6)) { sin->sin6_addr = ipv6_hdr(skb)->saddr; if (np->rxopt.all) - ip6_datagram_recv_ctl(sk, msg, skb); + ip6_datagram_recv_specific_ctl(sk, msg, skb); sin->sin6_scope_id = ipv6_iface_scope_id(&sin->sin6_addr, IP6CB(skb)->iif); @@ -429,8 +440,8 @@ int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len, { struct ipv6_pinfo *np = inet6_sk(sk); struct sk_buff *skb; - struct sockaddr_in6 *sin; struct ip6_mtuinfo mtu_info; + DECLARE_SOCKADDR(struct sockaddr_in6 *, sin, msg->msg_name); int err; int copied; @@ -452,7 +463,6 @@ int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len, memcpy(&mtu_info, IP6CBMTU(skb), sizeof(mtu_info)); - sin = (struct sockaddr_in6 *)msg->msg_name; if (sin) { sin->sin6_family = AF_INET6; sin->sin6_flowinfo = 0; @@ -473,20 +483,34 @@ out: } -int ip6_datagram_recv_ctl(struct sock *sk, struct msghdr *msg, - struct sk_buff *skb) +void ip6_datagram_recv_common_ctl(struct sock *sk, struct msghdr *msg, + struct sk_buff *skb) { struct ipv6_pinfo *np = inet6_sk(sk); - struct inet6_skb_parm *opt = IP6CB(skb); - unsigned char *nh = skb_network_header(skb); + bool is_ipv6 = skb->protocol == htons(ETH_P_IPV6); if (np->rxopt.bits.rxinfo) { struct in6_pktinfo src_info; - src_info.ipi6_ifindex = opt->iif; - src_info.ipi6_addr = ipv6_hdr(skb)->daddr; + if (is_ipv6) { + src_info.ipi6_ifindex = IP6CB(skb)->iif; + src_info.ipi6_addr = ipv6_hdr(skb)->daddr; + } else { + src_info.ipi6_ifindex = + PKTINFO_SKB_CB(skb)->ipi_ifindex; + ipv6_addr_set_v4mapped(ip_hdr(skb)->daddr, + &src_info.ipi6_addr); + } put_cmsg(msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info); } +} + +void ip6_datagram_recv_specific_ctl(struct sock *sk, struct msghdr *msg, + struct sk_buff *skb) +{ + struct ipv6_pinfo *np = inet6_sk(sk); + struct inet6_skb_parm *opt = IP6CB(skb); + unsigned char *nh = skb_network_header(skb); if (np->rxopt.bits.rxhlim) { int hlim = ipv6_hdr(skb)->hop_limit; @@ -604,7 +628,13 @@ int ip6_datagram_recv_ctl(struct sock *sk, struct msghdr *msg, put_cmsg(msg, SOL_IPV6, IPV6_ORIGDSTADDR, sizeof(sin6), &sin6); } } - return 0; +} + +void ip6_datagram_recv_ctl(struct sock *sk, struct msghdr *msg, + struct sk_buff *skb) +{ + ip6_datagram_recv_common_ctl(sk, msg, skb); + ip6_datagram_recv_specific_ctl(sk, msg, skb); } EXPORT_SYMBOL_GPL(ip6_datagram_recv_ctl); @@ -669,7 +699,9 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk, int strict = __ipv6_addr_src_scope(addr_type) <= IPV6_ADDR_SCOPE_LINKLOCAL; if (!(inet_sk(sk)->freebind || inet_sk(sk)->transparent) && !ipv6_chk_addr(net, &src_info->ipi6_addr, - strict ? dev : NULL, 0)) + strict ? dev : NULL, 0) && + !ipv6_chk_acast_addr_src(net, dev, + &src_info->ipi6_addr)) err = -EINVAL; else fl6->saddr = src_info->ipi6_addr; diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c index b8719df0366e..6eef8a7e35f2 100644 --- a/net/ipv6/esp6.c +++ b/net/ipv6/esp6.c @@ -12,8 +12,7 @@ * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * along with this program; if not, see <http://www.gnu.org/licenses/>. * * Authors * diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c index 3fd0a578329e..b4d5e1d97c1b 100644 --- a/net/ipv6/fib6_rules.c +++ b/net/ipv6/fib6_rules.c @@ -169,7 +169,7 @@ static int fib6_rule_match(struct fib_rule *rule, struct flowi *fl, int flags) return 0; } - if (r->tclass && r->tclass != ((ntohl(fl6->flowlabel) >> 20) & 0xff)) + if (r->tclass && r->tclass != ip6_tclass(fl6->flowlabel)) return 0; return 1; diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index eef8d945b362..f81f59686f21 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -67,6 +67,7 @@ #include <net/icmp.h> #include <net/xfrm.h> #include <net/inet_common.h> +#include <net/dsfield.h> #include <asm/uaccess.h> @@ -315,8 +316,10 @@ static void mip6_addr_swap(struct sk_buff *skb) static inline void mip6_addr_swap(struct sk_buff *skb) {} #endif -struct dst_entry *icmpv6_route_lookup(struct net *net, struct sk_buff *skb, - struct sock *sk, struct flowi6 *fl6) +static struct dst_entry *icmpv6_route_lookup(struct net *net, + struct sk_buff *skb, + struct sock *sk, + struct flowi6 *fl6) { struct dst_entry *dst, *dst2; struct flowi6 fl2; @@ -410,7 +413,8 @@ static void icmp6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info) */ addr_type = ipv6_addr_type(&hdr->daddr); - if (ipv6_chk_addr(net, &hdr->daddr, skb->dev, 0)) + if (ipv6_chk_addr(net, &hdr->daddr, skb->dev, 0) || + ipv6_anycast_destination(skb)) saddr = &hdr->daddr; /* @@ -551,10 +555,13 @@ static void icmpv6_echo_reply(struct sk_buff *skb) struct dst_entry *dst; int err = 0; int hlimit; + u8 tclass; saddr = &ipv6_hdr(skb)->daddr; - if (!ipv6_unicast_destination(skb)) + if (!ipv6_unicast_destination(skb) && + !(net->ipv6.sysctl.anycast_src_echo_reply && + ipv6_anycast_destination(skb))) saddr = NULL; memcpy(&tmp_hdr, icmph, sizeof(tmp_hdr)); @@ -599,8 +606,9 @@ static void icmpv6_echo_reply(struct sk_buff *skb) msg.offset = 0; msg.type = ICMPV6_ECHO_REPLY; + tclass = ipv6_get_dsfield(ipv6_hdr(skb)); err = ip6_append_data(sk, icmpv6_getfrag, &msg, skb->len + sizeof(struct icmp6hdr), - sizeof(struct icmp6hdr), hlimit, np->tclass, NULL, &fl6, + sizeof(struct icmp6hdr), hlimit, tclass, NULL, &fl6, (struct rt6_info *)dst, MSG_DONTWAIT, np->dontfrag); @@ -984,7 +992,7 @@ int icmpv6_err_convert(u8 type, u8 code, int *err) EXPORT_SYMBOL(icmpv6_err_convert); #ifdef CONFIG_SYSCTL -struct ctl_table ipv6_icmp_table_template[] = { +static struct ctl_table ipv6_icmp_table_template[] = { { .procname = "ratelimit", .data = &init_net.ipv6.sysctl.icmpv6_time, diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c index 77bb8afb141d..c9138189415a 100644 --- a/net/ipv6/inet6_connection_sock.c +++ b/net/ipv6/inet6_connection_sock.c @@ -86,7 +86,7 @@ struct dst_entry *inet6_csk_route_req(struct sock *sk, fl6->fl6_sport = htons(ireq->ir_num); security_req_classify_flow(req, flowi6_to_flowi(fl6)); - dst = ip6_dst_lookup_flow(sk, fl6, final_p, false); + dst = ip6_dst_lookup_flow(sk, fl6, final_p); if (IS_ERR(dst)) return NULL; @@ -216,7 +216,7 @@ static struct dst_entry *inet6_csk_route_socket(struct sock *sk, dst = __inet6_csk_dst_check(sk, np->dst_cookie); if (!dst) { - dst = ip6_dst_lookup_flow(sk, fl6, final_p, false); + dst = ip6_dst_lookup_flow(sk, fl6, final_p); if (!IS_ERR(dst)) __inet6_csk_dst_store(sk, dst, NULL, NULL); diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 5550a8113a6d..075602fc6b6a 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -1530,7 +1530,7 @@ static void fib6_clean_tree(struct net *net, struct fib6_node *root, } void fib6_clean_all(struct net *net, int (*func)(struct rt6_info *, void *arg), - int prune, void *arg) + void *arg) { struct fib6_table *table; struct hlist_head *head; @@ -1542,7 +1542,7 @@ void fib6_clean_all(struct net *net, int (*func)(struct rt6_info *, void *arg), hlist_for_each_entry_rcu(table, head, tb6_hlist) { write_lock_bh(&table->tb6_lock); fib6_clean_tree(net, &table->tb6_root, - func, prune, arg); + func, 0, arg); write_unlock_bh(&table->tb6_lock); } } @@ -1636,7 +1636,7 @@ void fib6_run_gc(unsigned long expires, struct net *net, bool force) gc_args.more = icmp6_dst_gc(); - fib6_clean_all(net, fib6_age, 0, NULL); + fib6_clean_all(net, fib6_age, NULL); now = jiffies; net->ipv6.ip6_rt_last_gc = now; diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c index e7fb7106550f..dfa41bb4e0dc 100644 --- a/net/ipv6/ip6_flowlabel.c +++ b/net/ipv6/ip6_flowlabel.c @@ -210,7 +210,7 @@ static struct ip6_flowlabel *fl_intern(struct net *net, spin_lock_bh(&ip6_fl_lock); if (label == 0) { for (;;) { - fl->label = htonl(net_random())&IPV6_FLOWLABEL_MASK; + fl->label = htonl(prandom_u32())&IPV6_FLOWLABEL_MASK; if (fl->label) { lfl = __fl_lookup(net, fl->label); if (lfl == NULL) @@ -481,11 +481,22 @@ static inline void fl_link(struct ipv6_pinfo *np, struct ipv6_fl_socklist *sfl, spin_unlock_bh(&ip6_sk_fl_lock); } -int ipv6_flowlabel_opt_get(struct sock *sk, struct in6_flowlabel_req *freq) +int ipv6_flowlabel_opt_get(struct sock *sk, struct in6_flowlabel_req *freq, + int flags) { struct ipv6_pinfo *np = inet6_sk(sk); struct ipv6_fl_socklist *sfl; + if (flags & IPV6_FL_F_REMOTE) { + freq->flr_label = np->rcv_flowinfo & IPV6_FLOWLABEL_MASK; + return 0; + } + + if (np->repflow) { + freq->flr_label = np->flow_label; + return 0; + } + rcu_read_lock_bh(); for_each_sk_fl_rcu(np, sfl) { @@ -527,6 +538,15 @@ int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen) switch (freq.flr_action) { case IPV6_FL_A_PUT: + if (freq.flr_flags & IPV6_FL_F_REFLECT) { + if (sk->sk_protocol != IPPROTO_TCP) + return -ENOPROTOOPT; + if (!np->repflow) + return -ESRCH; + np->flow_label = 0; + np->repflow = 0; + return 0; + } spin_lock_bh(&ip6_sk_fl_lock); for (sflp = &np->ipv6_fl_list; (sfl = rcu_dereference(*sflp))!=NULL; @@ -567,6 +587,20 @@ int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen) return -ESRCH; case IPV6_FL_A_GET: + if (freq.flr_flags & IPV6_FL_F_REFLECT) { + struct net *net = sock_net(sk); + if (net->ipv6.sysctl.flowlabel_consistency) { + net_info_ratelimited("Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable\n"); + return -EPERM; + } + + if (sk->sk_protocol != IPPROTO_TCP) + return -ENOPROTOOPT; + + np->repflow = 1; + return 0; + } + if (freq.flr_label & ~IPV6_FLOWLABEL_MASK) return -EINVAL; diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index 8acb28621f9c..f3ffb43f59c0 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -61,9 +61,6 @@ static bool log_ecn_error = true; module_param(log_ecn_error, bool, 0644); MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN"); -#define IPV6_TCLASS_MASK (IPV6_FLOWINFO_MASK & ~IPV6_FLOWLABEL_MASK) -#define IPV6_TCLASS_SHIFT 20 - #define HASH_SIZE_SHIFT 5 #define HASH_SIZE (1 << HASH_SIZE_SHIFT) @@ -499,7 +496,7 @@ static int ip6gre_rcv(struct sk_buff *skb) &ipv6h->saddr, &ipv6h->daddr, key, gre_proto); if (tunnel) { - struct pcpu_tstats *tstats; + struct pcpu_sw_netstats *tstats; if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) goto drop; @@ -846,7 +843,7 @@ static inline int ip6gre_xmit_ipv6(struct sk_buff *skb, struct net_device *dev) if (t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS) fl6.flowlabel |= (*(__be32 *) ipv6h & IPV6_TCLASS_MASK); if (t->parms.flags & IP6_TNL_F_USE_ORIG_FLOWLABEL) - fl6.flowlabel |= (*(__be32 *) ipv6h & IPV6_FLOWLABEL_MASK); + fl6.flowlabel |= ip6_flowlabel(ipv6h); if (t->parms.flags & IP6_TNL_F_USE_ORIG_FWMARK) fl6.flowi6_mark = skb->mark; @@ -1266,12 +1263,12 @@ static int ip6gre_tunnel_init(struct net_device *dev) if (ipv6_addr_any(&tunnel->parms.raddr)) dev->header_ops = &ip6gre_header_ops; - dev->tstats = alloc_percpu(struct pcpu_tstats); + dev->tstats = alloc_percpu(struct pcpu_sw_netstats); if (!dev->tstats) return -ENOMEM; for_each_possible_cpu(i) { - struct pcpu_tstats *ip6gre_tunnel_stats; + struct pcpu_sw_netstats *ip6gre_tunnel_stats; ip6gre_tunnel_stats = per_cpu_ptr(dev->tstats, i); u64_stats_init(&ip6gre_tunnel_stats->syncp); } @@ -1467,12 +1464,12 @@ static int ip6gre_tap_init(struct net_device *dev) ip6gre_tnl_link_config(tunnel, 1); - dev->tstats = alloc_percpu(struct pcpu_tstats); + dev->tstats = alloc_percpu(struct pcpu_sw_netstats); if (!dev->tstats) return -ENOMEM; for_each_possible_cpu(i) { - struct pcpu_tstats *ip6gre_tap_stats; + struct pcpu_sw_netstats *ip6gre_tap_stats; ip6gre_tap_stats = per_cpu_ptr(dev->tstats, i); u64_stats_init(&ip6gre_tap_stats->syncp); } diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c index 4b851692b1f6..1e8683b135bb 100644 --- a/net/ipv6/ip6_offload.c +++ b/net/ipv6/ip6_offload.c @@ -154,6 +154,32 @@ out: return segs; } +/* Return the total length of all the extension hdrs, following the same + * logic in ipv6_gso_pull_exthdrs() when parsing ext-hdrs. + */ +static int ipv6_exthdrs_len(struct ipv6hdr *iph, + const struct net_offload **opps) +{ + struct ipv6_opt_hdr *opth = (void *)iph; + int len = 0, proto, optlen = sizeof(*iph); + + proto = iph->nexthdr; + for (;;) { + if (proto != NEXTHDR_HOP) { + *opps = rcu_dereference(inet6_offloads[proto]); + if (unlikely(!(*opps))) + break; + if (!((*opps)->flags & INET6_PROTO_GSO_EXTHDR)) + break; + } + opth = (void *)opth + optlen; + optlen = ipv6_optlen(opth); + len += optlen; + proto = opth->nexthdr; + } + return len; +} + static struct sk_buff **ipv6_gro_receive(struct sk_buff **head, struct sk_buff *skb) { @@ -164,7 +190,7 @@ static struct sk_buff **ipv6_gro_receive(struct sk_buff **head, unsigned int nlen; unsigned int hlen; unsigned int off; - int flush = 1; + u16 flush = 1; int proto; __wsum csum; @@ -177,6 +203,7 @@ static struct sk_buff **ipv6_gro_receive(struct sk_buff **head, goto out; } + skb_set_network_header(skb, off); skb_gro_pull(skb, sizeof(*iph)); skb_set_transport_header(skb, skb_gro_offset(skb)); @@ -211,12 +238,16 @@ static struct sk_buff **ipv6_gro_receive(struct sk_buff **head, if (!NAPI_GRO_CB(p)->same_flow) continue; - iph2 = ipv6_hdr(p); + iph2 = (struct ipv6hdr *)(p->data + off); first_word = *(__be32 *)iph ^ *(__be32 *)iph2 ; - /* All fields must match except length and Traffic Class. */ - if (nlen != skb_network_header_len(p) || - (first_word & htonl(0xF00FFFFF)) || + /* All fields must match except length and Traffic Class. + * XXX skbs on the gro_list have all been parsed and pulled + * already so we don't need to compare nlen + * (nlen != (sizeof(*iph2) + ipv6_exthdrs_len(iph2, &ops))) + * memcmp() alone below is suffcient, right? + */ + if ((first_word & htonl(0xF00FFFFF)) || memcmp(&iph->nexthdr, &iph2->nexthdr, nlen - offsetof(struct ipv6hdr, nexthdr))) { NAPI_GRO_CB(p)->same_flow = 0; @@ -245,21 +276,21 @@ out: return pp; } -static int ipv6_gro_complete(struct sk_buff *skb) +static int ipv6_gro_complete(struct sk_buff *skb, int nhoff) { const struct net_offload *ops; - struct ipv6hdr *iph = ipv6_hdr(skb); + struct ipv6hdr *iph = (struct ipv6hdr *)(skb->data + nhoff); int err = -ENOSYS; - iph->payload_len = htons(skb->len - skb_network_offset(skb) - - sizeof(*iph)); + iph->payload_len = htons(skb->len - nhoff - sizeof(*iph)); rcu_read_lock(); - ops = rcu_dereference(inet6_offloads[NAPI_GRO_CB(skb)->proto]); + + nhoff += sizeof(*iph) + ipv6_exthdrs_len(iph, &ops); if (WARN_ON(!ops || !ops->callbacks.gro_complete)) goto out_unlock; - err = ops->callbacks.gro_complete(skb); + err = ops->callbacks.gro_complete(skb, nhoff); out_unlock: rcu_read_unlock(); diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index e6f931997996..ef02b26ccf81 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -321,6 +321,27 @@ static inline int ip6_forward_finish(struct sk_buff *skb) return dst_output(skb); } +static unsigned int ip6_dst_mtu_forward(const struct dst_entry *dst) +{ + unsigned int mtu; + struct inet6_dev *idev; + + if (dst_metric_locked(dst, RTAX_MTU)) { + mtu = dst_metric_raw(dst, RTAX_MTU); + if (mtu) + return mtu; + } + + mtu = IPV6_MIN_MTU; + rcu_read_lock(); + idev = __in6_dev_get(dst->dev); + if (idev) + mtu = idev->cnf.mtu6; + rcu_read_unlock(); + + return mtu; +} + int ip6_forward(struct sk_buff *skb) { struct dst_entry *dst = skb_dst(skb); @@ -336,7 +357,8 @@ int ip6_forward(struct sk_buff *skb) goto drop; if (!xfrm6_policy_check(NULL, XFRM_POLICY_FWD, skb)) { - IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_INDISCARDS); + IP6_INC_STATS_BH(net, ip6_dst_idev(dst), + IPSTATS_MIB_INDISCARDS); goto drop; } @@ -370,8 +392,8 @@ int ip6_forward(struct sk_buff *skb) /* Force OUTPUT device used as source address */ skb->dev = dst->dev; icmpv6_send(skb, ICMPV6_TIME_EXCEED, ICMPV6_EXC_HOPLIMIT, 0); - IP6_INC_STATS_BH(net, - ip6_dst_idev(dst), IPSTATS_MIB_INHDRERRORS); + IP6_INC_STATS_BH(net, ip6_dst_idev(dst), + IPSTATS_MIB_INHDRERRORS); kfree_skb(skb); return -ETIMEDOUT; @@ -384,14 +406,15 @@ int ip6_forward(struct sk_buff *skb) if (proxied > 0) return ip6_input(skb); else if (proxied < 0) { - IP6_INC_STATS(net, ip6_dst_idev(dst), - IPSTATS_MIB_INDISCARDS); + IP6_INC_STATS_BH(net, ip6_dst_idev(dst), + IPSTATS_MIB_INDISCARDS); goto drop; } } if (!xfrm6_route_forward(skb)) { - IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_INDISCARDS); + IP6_INC_STATS_BH(net, ip6_dst_idev(dst), + IPSTATS_MIB_INDISCARDS); goto drop; } dst = skb_dst(skb); @@ -439,7 +462,7 @@ int ip6_forward(struct sk_buff *skb) } } - mtu = dst_mtu(dst); + mtu = ip6_dst_mtu_forward(dst); if (mtu < IPV6_MIN_MTU) mtu = IPV6_MIN_MTU; @@ -448,16 +471,17 @@ int ip6_forward(struct sk_buff *skb) /* Again, force OUTPUT device used as source address */ skb->dev = dst->dev; icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu); - IP6_INC_STATS_BH(net, - ip6_dst_idev(dst), IPSTATS_MIB_INTOOBIGERRORS); - IP6_INC_STATS_BH(net, - ip6_dst_idev(dst), IPSTATS_MIB_FRAGFAILS); + IP6_INC_STATS_BH(net, ip6_dst_idev(dst), + IPSTATS_MIB_INTOOBIGERRORS); + IP6_INC_STATS_BH(net, ip6_dst_idev(dst), + IPSTATS_MIB_FRAGFAILS); kfree_skb(skb); return -EMSGSIZE; } if (skb_cow(skb, dst->dev->hard_header_len)) { - IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTDISCARDS); + IP6_INC_STATS_BH(net, ip6_dst_idev(dst), + IPSTATS_MIB_OUTDISCARDS); goto drop; } @@ -938,7 +962,6 @@ EXPORT_SYMBOL_GPL(ip6_dst_lookup); * @sk: socket which provides route info * @fl6: flow to lookup * @final_dst: final destination address for ipsec lookup - * @can_sleep: we are in a sleepable context * * This function performs a route lookup on the given flow. * @@ -946,8 +969,7 @@ EXPORT_SYMBOL_GPL(ip6_dst_lookup); * error code. */ struct dst_entry *ip6_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6, - const struct in6_addr *final_dst, - bool can_sleep) + const struct in6_addr *final_dst) { struct dst_entry *dst = NULL; int err; @@ -957,8 +979,6 @@ struct dst_entry *ip6_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6, return ERR_PTR(err); if (final_dst) fl6->daddr = *final_dst; - if (can_sleep) - fl6->flowi6_flags |= FLOWI_FLAG_CAN_SLEEP; return xfrm_lookup(sock_net(sk), dst, flowi6_to_flowi(fl6), sk, 0); } @@ -969,7 +989,6 @@ EXPORT_SYMBOL_GPL(ip6_dst_lookup_flow); * @sk: socket which provides the dst cache and route info * @fl6: flow to lookup * @final_dst: final destination address for ipsec lookup - * @can_sleep: we are in a sleepable context * * This function performs a route lookup on the given flow with the * possibility of using the cached route in the socket if it is valid. @@ -980,8 +999,7 @@ EXPORT_SYMBOL_GPL(ip6_dst_lookup_flow); * error code. */ struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6, - const struct in6_addr *final_dst, - bool can_sleep) + const struct in6_addr *final_dst) { struct dst_entry *dst = sk_dst_check(sk, inet6_sk(sk)->dst_cookie); int err; @@ -993,8 +1011,6 @@ struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6, return ERR_PTR(err); if (final_dst) fl6->daddr = *final_dst; - if (can_sleep) - fl6->flowi6_flags |= FLOWI_FLAG_CAN_SLEEP; return xfrm_lookup(sock_net(sk), dst, flowi6_to_flowi(fl6), sk, 0); } @@ -1162,10 +1178,10 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to, np->cork.hop_limit = hlimit; np->cork.tclass = tclass; if (rt->dst.flags & DST_XFRM_TUNNEL) - mtu = np->pmtudisc == IPV6_PMTUDISC_PROBE ? + mtu = np->pmtudisc >= IPV6_PMTUDISC_PROBE ? rt->dst.dev->mtu : dst_mtu(&rt->dst); else - mtu = np->pmtudisc == IPV6_PMTUDISC_PROBE ? + mtu = np->pmtudisc >= IPV6_PMTUDISC_PROBE ? rt->dst.dev->mtu : dst_mtu(rt->dst.path); if (np->frag_size < mtu) { if (np->frag_size) @@ -1285,7 +1301,7 @@ alloc_new_skb: if (skb == NULL || skb_prev == NULL) ip6_append_data_mtu(&mtu, &maxfraglen, fragheaderlen, skb, rt, - np->pmtudisc == + np->pmtudisc >= IPV6_PMTUDISC_PROBE); skb_prev = skb; diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 7881965a8248..5db8d310f9c0 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -29,7 +29,6 @@ #include <linux/if.h> #include <linux/in.h> #include <linux/ip.h> -#include <linux/if_tunnel.h> #include <linux/net.h> #include <linux/in6.h> #include <linux/netdevice.h> @@ -70,9 +69,6 @@ MODULE_ALIAS_NETDEV("ip6tnl0"); #define IP6_TNL_TRACE(x...) do {;} while(0) #endif -#define IPV6_TCLASS_MASK (IPV6_FLOWINFO_MASK & ~IPV6_FLOWLABEL_MASK) -#define IPV6_TCLASS_SHIFT 20 - #define HASH_SIZE_SHIFT 5 #define HASH_SIZE (1 << HASH_SIZE_SHIFT) @@ -103,12 +99,13 @@ struct ip6_tnl_net { static struct net_device_stats *ip6_get_stats(struct net_device *dev) { - struct pcpu_tstats tmp, sum = { 0 }; + struct pcpu_sw_netstats tmp, sum = { 0 }; int i; for_each_possible_cpu(i) { unsigned int start; - const struct pcpu_tstats *tstats = per_cpu_ptr(dev->tstats, i); + const struct pcpu_sw_netstats *tstats = + per_cpu_ptr(dev->tstats, i); do { start = u64_stats_fetch_begin_bh(&tstats->syncp); @@ -794,7 +791,7 @@ static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol, if ((t = ip6_tnl_lookup(dev_net(skb->dev), &ipv6h->saddr, &ipv6h->daddr)) != NULL) { - struct pcpu_tstats *tstats; + struct pcpu_sw_netstats *tstats; if (t->parms.proto != ipproto && t->parms.proto != 0) { rcu_read_unlock(); @@ -1142,7 +1139,7 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev) if (t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS) fl6.flowlabel |= (*(__be32 *) ipv6h & IPV6_TCLASS_MASK); if (t->parms.flags & IP6_TNL_F_USE_ORIG_FLOWLABEL) - fl6.flowlabel |= (*(__be32 *) ipv6h & IPV6_FLOWLABEL_MASK); + fl6.flowlabel |= ip6_flowlabel(ipv6h); if (t->parms.flags & IP6_TNL_F_USE_ORIG_FWMARK) fl6.flowi6_mark = skb->mark; @@ -1509,12 +1506,12 @@ ip6_tnl_dev_init_gen(struct net_device *dev) t->dev = dev; t->net = dev_net(dev); - dev->tstats = alloc_percpu(struct pcpu_tstats); + dev->tstats = alloc_percpu(struct pcpu_sw_netstats); if (!dev->tstats) return -ENOMEM; for_each_possible_cpu(i) { - struct pcpu_tstats *ip6_tnl_stats; + struct pcpu_sw_netstats *ip6_tnl_stats; ip6_tnl_stats = per_cpu_ptr(dev->tstats, i); u64_stats_init(&ip6_tnl_stats->syncp); } diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c index 7b42d5ef868d..2d19272b8cee 100644 --- a/net/ipv6/ip6_vti.c +++ b/net/ipv6/ip6_vti.c @@ -24,7 +24,6 @@ #include <linux/if.h> #include <linux/in.h> #include <linux/ip.h> -#include <linux/if_tunnel.h> #include <linux/net.h> #include <linux/in6.h> #include <linux/netdevice.h> @@ -292,7 +291,7 @@ static int vti6_rcv(struct sk_buff *skb) if ((t = vti6_tnl_lookup(dev_net(skb->dev), &ipv6h->saddr, &ipv6h->daddr)) != NULL) { - struct pcpu_tstats *tstats; + struct pcpu_sw_netstats *tstats; if (t->parms.proto != IPPROTO_IPV6 && t->parms.proto != 0) { rcu_read_unlock(); @@ -736,11 +735,11 @@ static inline int vti6_dev_init_gen(struct net_device *dev) t->dev = dev; t->net = dev_net(dev); - dev->tstats = alloc_percpu(struct pcpu_tstats); + dev->tstats = alloc_percpu(struct pcpu_sw_netstats); if (!dev->tstats) return -ENOMEM; for_each_possible_cpu(i) { - struct pcpu_tstats *stats; + struct pcpu_sw_netstats *stats; stats = per_cpu_ptr(dev->tstats, i); u64_stats_init(&stats->syncp); } diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c index ce507d9e1c90..da9becb42e81 100644 --- a/net/ipv6/ipcomp6.c +++ b/net/ipv6/ipcomp6.c @@ -16,8 +16,7 @@ * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * along with this program; if not, see <http://www.gnu.org/licenses/>. */ /* * [Memo] diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 1c6ce3119ff8..0a00f449de5e 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -722,7 +722,7 @@ done: case IPV6_MTU_DISCOVER: if (optlen < sizeof(int)) goto e_inval; - if (val < IP_PMTUDISC_DONT || val > IP_PMTUDISC_PROBE) + if (val < IPV6_PMTUDISC_DONT || val > IPV6_PMTUDISC_INTERFACE) goto e_inval; np->pmtudisc = val; retv = 0; @@ -1002,10 +1002,8 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, release_sock(sk); if (skb) { - int err = ip6_datagram_recv_ctl(sk, &msg, skb); + ip6_datagram_recv_ctl(sk, &msg, skb); kfree_skb(skb); - if (err) - return err; } else { if (np->rxopt.bits.rxinfo) { struct in6_pktinfo src_info; @@ -1019,7 +1017,8 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, put_cmsg(&msg, SOL_IPV6, IPV6_HOPLIMIT, sizeof(hlim), &hlim); } if (np->rxopt.bits.rxtclass) { - int tclass = np->rcv_tclass; + int tclass = (int)ip6_tclass(np->rcv_flowinfo); + put_cmsg(&msg, SOL_IPV6, IPV6_TCLASS, sizeof(tclass), &tclass); } if (np->rxopt.bits.rxoinfo) { @@ -1034,6 +1033,11 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, int hlim = np->mcast_hops; put_cmsg(&msg, SOL_IPV6, IPV6_2292HOPLIMIT, sizeof(hlim), &hlim); } + if (np->rxopt.bits.rxflow) { + __be32 flowinfo = np->rcv_flowinfo; + + put_cmsg(&msg, SOL_IPV6, IPV6_FLOWINFO, sizeof(flowinfo), &flowinfo); + } } len -= msg.msg_controllen; return put_user(len, optlen); @@ -1215,6 +1219,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, case IPV6_FLOWLABEL_MGR: { struct in6_flowlabel_req freq; + int flags; if (len < sizeof(freq)) return -EINVAL; @@ -1226,9 +1231,11 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, return -EINVAL; len = sizeof(freq); + flags = freq.flr_flags; + memset(&freq, 0, sizeof(freq)); - val = ipv6_flowlabel_opt_get(sk, &freq); + val = ipv6_flowlabel_opt_get(sk, &freq, flags); if (val < 0) return val; diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index d18f9f903db6..e1e47350784b 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -999,7 +999,7 @@ bool ipv6_chk_mcast_addr(struct net_device *dev, const struct in6_addr *group, static void mld_gq_start_timer(struct inet6_dev *idev) { - unsigned long tv = net_random() % idev->mc_maxdelay; + unsigned long tv = prandom_u32() % idev->mc_maxdelay; idev->mc_gq_running = 1; if (!mod_timer(&idev->mc_gq_timer, jiffies+tv+2)) @@ -1015,7 +1015,7 @@ static void mld_gq_stop_timer(struct inet6_dev *idev) static void mld_ifc_start_timer(struct inet6_dev *idev, unsigned long delay) { - unsigned long tv = net_random() % delay; + unsigned long tv = prandom_u32() % delay; if (!mod_timer(&idev->mc_ifc_timer, jiffies+tv+2)) in6_dev_hold(idev); @@ -1030,7 +1030,7 @@ static void mld_ifc_stop_timer(struct inet6_dev *idev) static void mld_dad_start_timer(struct inet6_dev *idev, unsigned long delay) { - unsigned long tv = net_random() % delay; + unsigned long tv = prandom_u32() % delay; if (!mod_timer(&idev->mc_dad_timer, jiffies+tv+2)) in6_dev_hold(idev); @@ -1061,7 +1061,7 @@ static void igmp6_group_queried(struct ifmcaddr6 *ma, unsigned long resptime) } if (delay >= resptime) - delay = net_random() % resptime; + delay = prandom_u32() % resptime; ma->mca_timer.expires = jiffies + delay; if (!mod_timer(&ma->mca_timer, jiffies + delay)) @@ -1665,7 +1665,7 @@ static struct sk_buff *add_grhead(struct sk_buff *skb, struct ifmcaddr6 *pmc, skb_tailroom(skb)) : 0) static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc, - int type, int gdeleted, int sdeleted) + int type, int gdeleted, int sdeleted, int crsend) { struct inet6_dev *idev = pmc->idev; struct net_device *dev = idev->dev; @@ -1757,7 +1757,7 @@ empty_source: if (type == MLD2_ALLOW_NEW_SOURCES || type == MLD2_BLOCK_OLD_SOURCES) return skb; - if (pmc->mca_crcount || isquery) { + if (pmc->mca_crcount || isquery || crsend) { /* make sure we have room for group header */ if (skb && AVAILABLE(skb) < sizeof(struct mld2_grec)) { mld_sendpack(skb); @@ -1789,7 +1789,7 @@ static void mld_send_report(struct inet6_dev *idev, struct ifmcaddr6 *pmc) type = MLD2_MODE_IS_EXCLUDE; else type = MLD2_MODE_IS_INCLUDE; - skb = add_grec(skb, pmc, type, 0, 0); + skb = add_grec(skb, pmc, type, 0, 0, 0); spin_unlock_bh(&pmc->mca_lock); } } else { @@ -1798,7 +1798,7 @@ static void mld_send_report(struct inet6_dev *idev, struct ifmcaddr6 *pmc) type = MLD2_MODE_IS_EXCLUDE; else type = MLD2_MODE_IS_INCLUDE; - skb = add_grec(skb, pmc, type, 0, 0); + skb = add_grec(skb, pmc, type, 0, 0, 0); spin_unlock_bh(&pmc->mca_lock); } read_unlock_bh(&idev->lock); @@ -1843,13 +1843,13 @@ static void mld_send_cr(struct inet6_dev *idev) if (pmc->mca_sfmode == MCAST_INCLUDE) { type = MLD2_BLOCK_OLD_SOURCES; dtype = MLD2_BLOCK_OLD_SOURCES; - skb = add_grec(skb, pmc, type, 1, 0); - skb = add_grec(skb, pmc, dtype, 1, 1); + skb = add_grec(skb, pmc, type, 1, 0, 0); + skb = add_grec(skb, pmc, dtype, 1, 1, 0); } if (pmc->mca_crcount) { if (pmc->mca_sfmode == MCAST_EXCLUDE) { type = MLD2_CHANGE_TO_INCLUDE; - skb = add_grec(skb, pmc, type, 1, 0); + skb = add_grec(skb, pmc, type, 1, 0, 0); } pmc->mca_crcount--; if (pmc->mca_crcount == 0) { @@ -1880,8 +1880,8 @@ static void mld_send_cr(struct inet6_dev *idev) type = MLD2_ALLOW_NEW_SOURCES; dtype = MLD2_BLOCK_OLD_SOURCES; } - skb = add_grec(skb, pmc, type, 0, 0); - skb = add_grec(skb, pmc, dtype, 0, 1); /* deleted sources */ + skb = add_grec(skb, pmc, type, 0, 0, 0); + skb = add_grec(skb, pmc, dtype, 0, 1, 0); /* deleted sources */ /* filter mode changes */ if (pmc->mca_crcount) { @@ -1889,7 +1889,7 @@ static void mld_send_cr(struct inet6_dev *idev) type = MLD2_CHANGE_TO_EXCLUDE; else type = MLD2_CHANGE_TO_INCLUDE; - skb = add_grec(skb, pmc, type, 0, 0); + skb = add_grec(skb, pmc, type, 0, 0, 0); pmc->mca_crcount--; } spin_unlock_bh(&pmc->mca_lock); @@ -1997,27 +1997,36 @@ err_out: goto out; } -static void mld_resend_report(struct inet6_dev *idev) +static void mld_send_initial_cr(struct inet6_dev *idev) { - if (mld_in_v1_mode(idev)) { - struct ifmcaddr6 *mcaddr; - read_lock_bh(&idev->lock); - for (mcaddr = idev->mc_list; mcaddr; mcaddr = mcaddr->next) { - if (!(mcaddr->mca_flags & MAF_NOREPORT)) - igmp6_send(&mcaddr->mca_addr, idev->dev, - ICMPV6_MGM_REPORT); - } - read_unlock_bh(&idev->lock); - } else { - mld_send_report(idev, NULL); + struct sk_buff *skb; + struct ifmcaddr6 *pmc; + int type; + + if (mld_in_v1_mode(idev)) + return; + + skb = NULL; + read_lock_bh(&idev->lock); + for (pmc=idev->mc_list; pmc; pmc=pmc->next) { + spin_lock_bh(&pmc->mca_lock); + if (pmc->mca_sfcount[MCAST_EXCLUDE]) + type = MLD2_CHANGE_TO_EXCLUDE; + else + type = MLD2_CHANGE_TO_INCLUDE; + skb = add_grec(skb, pmc, type, 0, 0, 1); + spin_unlock_bh(&pmc->mca_lock); } + read_unlock_bh(&idev->lock); + if (skb) + mld_sendpack(skb); } void ipv6_mc_dad_complete(struct inet6_dev *idev) { idev->mc_dad_count = idev->mc_qrv; if (idev->mc_dad_count) { - mld_resend_report(idev); + mld_send_initial_cr(idev); idev->mc_dad_count--; if (idev->mc_dad_count) mld_dad_start_timer(idev, idev->mc_maxdelay); @@ -2028,7 +2037,7 @@ static void mld_dad_timer_expire(unsigned long data) { struct inet6_dev *idev = (struct inet6_dev *)data; - mld_resend_report(idev); + mld_send_initial_cr(idev); if (idev->mc_dad_count) { idev->mc_dad_count--; if (idev->mc_dad_count) @@ -2328,7 +2337,7 @@ static void igmp6_join_group(struct ifmcaddr6 *ma) igmp6_send(&ma->mca_addr, ma->idev->dev, ICMPV6_MGM_REPORT); - delay = net_random() % unsolicited_report_interval(ma->idev); + delay = prandom_u32() % unsolicited_report_interval(ma->idev); spin_lock_bh(&ma->mca_lock); if (del_timer(&ma->mca_timer)) { diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c index 9ac01dc9402e..db9b6cbc9db3 100644 --- a/net/ipv6/mip6.c +++ b/net/ipv6/mip6.c @@ -13,8 +13,7 @@ * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * along with this program; if not, see <http://www.gnu.org/licenses/>. */ /* * Authors: diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 300865171394..09a22f4f36c9 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -125,17 +125,19 @@ struct neigh_table nd_tbl = { .id = "ndisc_cache", .parms = { .tbl = &nd_tbl, - .base_reachable_time = ND_REACHABLE_TIME, - .retrans_time = ND_RETRANS_TIMER, - .gc_staletime = 60 * HZ, .reachable_time = ND_REACHABLE_TIME, - .delay_probe_time = 5 * HZ, - .queue_len_bytes = 64*1024, - .ucast_probes = 3, - .mcast_probes = 3, - .anycast_delay = 1 * HZ, - .proxy_delay = (8 * HZ) / 10, - .proxy_qlen = 64, + .data = { + [NEIGH_VAR_MCAST_PROBES] = 3, + [NEIGH_VAR_UCAST_PROBES] = 3, + [NEIGH_VAR_RETRANS_TIME] = ND_RETRANS_TIMER, + [NEIGH_VAR_BASE_REACHABLE_TIME] = ND_REACHABLE_TIME, + [NEIGH_VAR_DELAY_PROBE_TIME] = 5 * HZ, + [NEIGH_VAR_GC_STALETIME] = 60 * HZ, + [NEIGH_VAR_QUEUE_LEN_BYTES] = 64 * 1024, + [NEIGH_VAR_PROXY_QLEN] = 64, + [NEIGH_VAR_ANYCAST_DELAY] = 1 * HZ, + [NEIGH_VAR_PROXY_DELAY] = (8 * HZ) / 10, + }, }, .gc_interval = 30 * HZ, .gc_thresh1 = 128, @@ -656,14 +658,14 @@ static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb) if (skb && ipv6_chk_addr(dev_net(dev), &ipv6_hdr(skb)->saddr, dev, 1)) saddr = &ipv6_hdr(skb)->saddr; - if ((probes -= neigh->parms->ucast_probes) < 0) { + if ((probes -= NEIGH_VAR(neigh->parms, UCAST_PROBES)) < 0) { if (!(neigh->nud_state & NUD_VALID)) { ND_PRINTK(1, dbg, "%s: trying to ucast probe in NUD_INVALID: %pI6\n", __func__, target); } ndisc_send_ns(dev, neigh, target, target, saddr); - } else if ((probes -= neigh->parms->app_probes) < 0) { + } else if ((probes -= NEIGH_VAR(neigh->parms, APP_PROBES)) < 0) { neigh_app_ns(neigh); } else { addrconf_addr_solict_mult(target, &mcaddr); @@ -790,7 +792,7 @@ static void ndisc_recv_ns(struct sk_buff *skb) if (!(NEIGH_CB(skb)->flags & LOCALLY_ENQUEUED) && skb->pkt_type != PACKET_HOST && inc && - idev->nd_parms->proxy_delay != 0) { + NEIGH_VAR(idev->nd_parms, PROXY_DELAY) != 0) { /* * for anycast or proxy, * sender should delay its response @@ -1210,7 +1212,7 @@ skip_defrtr: rtime = (rtime*HZ)/1000; if (rtime < HZ/10) rtime = HZ/10; - in6_dev->nd_parms->retrans_time = rtime; + NEIGH_VAR_SET(in6_dev->nd_parms, RETRANS_TIME, rtime); in6_dev->tstamp = jiffies; inet6_ifinfo_notify(RTM_NEWLINK, in6_dev); } @@ -1222,9 +1224,11 @@ skip_defrtr: if (rtime < HZ/10) rtime = HZ/10; - if (rtime != in6_dev->nd_parms->base_reachable_time) { - in6_dev->nd_parms->base_reachable_time = rtime; - in6_dev->nd_parms->gc_staletime = 3 * rtime; + if (rtime != NEIGH_VAR(in6_dev->nd_parms, BASE_REACHABLE_TIME)) { + NEIGH_VAR_SET(in6_dev->nd_parms, + BASE_REACHABLE_TIME, rtime); + NEIGH_VAR_SET(in6_dev->nd_parms, + GC_STALETIME, 3 * rtime); in6_dev->nd_parms->reachable_time = neigh_rand_reach_time(rtime); in6_dev->tstamp = jiffies; inet6_ifinfo_notify(RTM_NEWLINK, in6_dev); @@ -1651,22 +1655,23 @@ int ndisc_ifinfo_sysctl_change(struct ctl_table *ctl, int write, void __user *bu ndisc_warn_deprecated_sysctl(ctl, "syscall", dev ? dev->name : "default"); if (strcmp(ctl->procname, "retrans_time") == 0) - ret = proc_dointvec(ctl, write, buffer, lenp, ppos); + ret = neigh_proc_dointvec(ctl, write, buffer, lenp, ppos); else if (strcmp(ctl->procname, "base_reachable_time") == 0) - ret = proc_dointvec_jiffies(ctl, write, - buffer, lenp, ppos); + ret = neigh_proc_dointvec_jiffies(ctl, write, + buffer, lenp, ppos); else if ((strcmp(ctl->procname, "retrans_time_ms") == 0) || (strcmp(ctl->procname, "base_reachable_time_ms") == 0)) - ret = proc_dointvec_ms_jiffies(ctl, write, - buffer, lenp, ppos); + ret = neigh_proc_dointvec_ms_jiffies(ctl, write, + buffer, lenp, ppos); else ret = -1; if (write && ret == 0 && dev && (idev = in6_dev_get(dev)) != NULL) { - if (ctl->data == &idev->nd_parms->base_reachable_time) - idev->nd_parms->reachable_time = neigh_rand_reach_time(idev->nd_parms->base_reachable_time); + if (ctl->data == &NEIGH_VAR(idev->nd_parms, BASE_REACHABLE_TIME)) + idev->nd_parms->reachable_time = + neigh_rand_reach_time(NEIGH_VAR(idev->nd_parms, BASE_REACHABLE_TIME)); idev->tstamp = jiffies; inet6_ifinfo_notify(RTM_NEWLINK, idev); in6_dev_put(idev); @@ -1725,7 +1730,7 @@ int __init ndisc_init(void) neigh_table_init(&nd_tbl); #ifdef CONFIG_SYSCTL - err = neigh_sysctl_register(NULL, &nd_tbl.parms, "ipv6", + err = neigh_sysctl_register(NULL, &nd_tbl.parms, &ndisc_ifinfo_sysctl_change); if (err) goto out_unregister_pernet; diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig index 7702f9e90a04..35750df744dc 100644 --- a/net/ipv6/netfilter/Kconfig +++ b/net/ipv6/netfilter/Kconfig @@ -28,15 +28,27 @@ config NF_CONNTRACK_IPV6 config NF_TABLES_IPV6 depends on NF_TABLES tristate "IPv6 nf_tables support" + help + This option enables the IPv6 support for nf_tables. config NFT_CHAIN_ROUTE_IPV6 depends on NF_TABLES_IPV6 tristate "IPv6 nf_tables route chain support" + help + This option enables the "route" chain for IPv6 in nf_tables. This + chain type is used to force packet re-routing after mangling header + fields such as the source, destination, flowlabel, hop-limit and + the packet mark. config NFT_CHAIN_NAT_IPV6 depends on NF_TABLES_IPV6 depends on NF_NAT_IPV6 && NFT_NAT tristate "IPv6 nf_tables nat chain support" + help + This option enables the "nat" chain for IPv6 in nf_tables. This + chain type is used to perform Network Address Translation (NAT) + packet transformations such as the source, destination address and + source and destination ports. config IP6_NF_IPTABLES tristate "IP6 tables support (required for filtering)" diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c index da00a2ecde55..544b0a9da1b5 100644 --- a/net/ipv6/netfilter/ip6t_REJECT.c +++ b/net/ipv6/netfilter/ip6t_REJECT.c @@ -23,181 +23,18 @@ #include <linux/skbuff.h> #include <linux/icmpv6.h> #include <linux/netdevice.h> -#include <net/ipv6.h> -#include <net/tcp.h> #include <net/icmp.h> -#include <net/ip6_checksum.h> -#include <net/ip6_fib.h> -#include <net/ip6_route.h> #include <net/flow.h> #include <linux/netfilter/x_tables.h> #include <linux/netfilter_ipv6/ip6_tables.h> #include <linux/netfilter_ipv6/ip6t_REJECT.h> +#include <net/netfilter/ipv6/nf_reject.h> + MODULE_AUTHOR("Yasuyuki KOZAKAI <yasuyuki.kozakai@toshiba.co.jp>"); MODULE_DESCRIPTION("Xtables: packet \"rejection\" target for IPv6"); MODULE_LICENSE("GPL"); -/* Send RST reply */ -static void send_reset(struct net *net, struct sk_buff *oldskb, int hook) -{ - struct sk_buff *nskb; - struct tcphdr otcph, *tcph; - unsigned int otcplen, hh_len; - int tcphoff, needs_ack; - const struct ipv6hdr *oip6h = ipv6_hdr(oldskb); - struct ipv6hdr *ip6h; -#define DEFAULT_TOS_VALUE 0x0U - const __u8 tclass = DEFAULT_TOS_VALUE; - struct dst_entry *dst = NULL; - u8 proto; - __be16 frag_off; - struct flowi6 fl6; - - if ((!(ipv6_addr_type(&oip6h->saddr) & IPV6_ADDR_UNICAST)) || - (!(ipv6_addr_type(&oip6h->daddr) & IPV6_ADDR_UNICAST))) { - pr_debug("addr is not unicast.\n"); - return; - } - - proto = oip6h->nexthdr; - tcphoff = ipv6_skip_exthdr(oldskb, ((u8*)(oip6h+1) - oldskb->data), &proto, &frag_off); - - if ((tcphoff < 0) || (tcphoff > oldskb->len)) { - pr_debug("Cannot get TCP header.\n"); - return; - } - - otcplen = oldskb->len - tcphoff; - - /* IP header checks: fragment, too short. */ - if (proto != IPPROTO_TCP || otcplen < sizeof(struct tcphdr)) { - pr_debug("proto(%d) != IPPROTO_TCP, " - "or too short. otcplen = %d\n", - proto, otcplen); - return; - } - - if (skb_copy_bits(oldskb, tcphoff, &otcph, sizeof(struct tcphdr))) - BUG(); - - /* No RST for RST. */ - if (otcph.rst) { - pr_debug("RST is set\n"); - return; - } - - /* Check checksum. */ - if (nf_ip6_checksum(oldskb, hook, tcphoff, IPPROTO_TCP)) { - pr_debug("TCP checksum is invalid\n"); - return; - } - - memset(&fl6, 0, sizeof(fl6)); - fl6.flowi6_proto = IPPROTO_TCP; - fl6.saddr = oip6h->daddr; - fl6.daddr = oip6h->saddr; - fl6.fl6_sport = otcph.dest; - fl6.fl6_dport = otcph.source; - security_skb_classify_flow(oldskb, flowi6_to_flowi(&fl6)); - dst = ip6_route_output(net, NULL, &fl6); - if (dst == NULL || dst->error) { - dst_release(dst); - return; - } - dst = xfrm_lookup(net, dst, flowi6_to_flowi(&fl6), NULL, 0); - if (IS_ERR(dst)) - return; - - hh_len = (dst->dev->hard_header_len + 15)&~15; - nskb = alloc_skb(hh_len + 15 + dst->header_len + sizeof(struct ipv6hdr) - + sizeof(struct tcphdr) + dst->trailer_len, - GFP_ATOMIC); - - if (!nskb) { - net_dbg_ratelimited("cannot alloc skb\n"); - dst_release(dst); - return; - } - - skb_dst_set(nskb, dst); - - skb_reserve(nskb, hh_len + dst->header_len); - - skb_put(nskb, sizeof(struct ipv6hdr)); - skb_reset_network_header(nskb); - ip6h = ipv6_hdr(nskb); - ip6_flow_hdr(ip6h, tclass, 0); - ip6h->hop_limit = ip6_dst_hoplimit(dst); - ip6h->nexthdr = IPPROTO_TCP; - ip6h->saddr = oip6h->daddr; - ip6h->daddr = oip6h->saddr; - - skb_reset_transport_header(nskb); - tcph = (struct tcphdr *)skb_put(nskb, sizeof(struct tcphdr)); - /* Truncate to length (no data) */ - tcph->doff = sizeof(struct tcphdr)/4; - tcph->source = otcph.dest; - tcph->dest = otcph.source; - - if (otcph.ack) { - needs_ack = 0; - tcph->seq = otcph.ack_seq; - tcph->ack_seq = 0; - } else { - needs_ack = 1; - tcph->ack_seq = htonl(ntohl(otcph.seq) + otcph.syn + otcph.fin - + otcplen - (otcph.doff<<2)); - tcph->seq = 0; - } - - /* Reset flags */ - ((u_int8_t *)tcph)[13] = 0; - tcph->rst = 1; - tcph->ack = needs_ack; - tcph->window = 0; - tcph->urg_ptr = 0; - tcph->check = 0; - - /* Adjust TCP checksum */ - tcph->check = csum_ipv6_magic(&ipv6_hdr(nskb)->saddr, - &ipv6_hdr(nskb)->daddr, - sizeof(struct tcphdr), IPPROTO_TCP, - csum_partial(tcph, - sizeof(struct tcphdr), 0)); - - nf_ct_attach(nskb, oldskb); - -#ifdef CONFIG_BRIDGE_NETFILTER - /* If we use ip6_local_out for bridged traffic, the MAC source on - * the RST will be ours, instead of the destination's. This confuses - * some routers/firewalls, and they drop the packet. So we need to - * build the eth header using the original destination's MAC as the - * source, and send the RST packet directly. - */ - if (oldskb->nf_bridge) { - struct ethhdr *oeth = eth_hdr(oldskb); - nskb->dev = oldskb->nf_bridge->physindev; - nskb->protocol = htons(ETH_P_IPV6); - ip6h->payload_len = htons(sizeof(struct tcphdr)); - if (dev_hard_header(nskb, nskb->dev, ntohs(nskb->protocol), - oeth->h_source, oeth->h_dest, nskb->len) < 0) - return; - dev_queue_xmit(nskb); - } else -#endif - ip6_local_out(nskb); -} - -static inline void -send_unreach(struct net *net, struct sk_buff *skb_in, unsigned char code, - unsigned int hooknum) -{ - if (hooknum == NF_INET_LOCAL_OUT && skb_in->dev == NULL) - skb_in->dev = net->loopback_dev; - - icmpv6_send(skb_in, ICMPV6_DEST_UNREACH, code, 0); -} static unsigned int reject_tg6(struct sk_buff *skb, const struct xt_action_param *par) @@ -208,25 +45,25 @@ reject_tg6(struct sk_buff *skb, const struct xt_action_param *par) pr_debug("%s: medium point\n", __func__); switch (reject->with) { case IP6T_ICMP6_NO_ROUTE: - send_unreach(net, skb, ICMPV6_NOROUTE, par->hooknum); + nf_send_unreach6(net, skb, ICMPV6_NOROUTE, par->hooknum); break; case IP6T_ICMP6_ADM_PROHIBITED: - send_unreach(net, skb, ICMPV6_ADM_PROHIBITED, par->hooknum); + nf_send_unreach6(net, skb, ICMPV6_ADM_PROHIBITED, par->hooknum); break; case IP6T_ICMP6_NOT_NEIGHBOUR: - send_unreach(net, skb, ICMPV6_NOT_NEIGHBOUR, par->hooknum); + nf_send_unreach6(net, skb, ICMPV6_NOT_NEIGHBOUR, par->hooknum); break; case IP6T_ICMP6_ADDR_UNREACH: - send_unreach(net, skb, ICMPV6_ADDR_UNREACH, par->hooknum); + nf_send_unreach6(net, skb, ICMPV6_ADDR_UNREACH, par->hooknum); break; case IP6T_ICMP6_PORT_UNREACH: - send_unreach(net, skb, ICMPV6_PORT_UNREACH, par->hooknum); + nf_send_unreach6(net, skb, ICMPV6_PORT_UNREACH, par->hooknum); break; case IP6T_ICMP6_ECHOREPLY: /* Do nothing */ break; case IP6T_TCP_RESET: - send_reset(net, skb, par->hooknum); + nf_send_reset6(net, skb, par->hooknum); break; default: net_info_ratelimited("case %u not handled yet\n", reject->with); diff --git a/net/ipv6/netfilter/nf_tables_ipv6.c b/net/ipv6/netfilter/nf_tables_ipv6.c index d77db8a13505..0d812b31277d 100644 --- a/net/ipv6/netfilter/nf_tables_ipv6.c +++ b/net/ipv6/netfilter/nf_tables_ipv6.c @@ -16,34 +16,51 @@ #include <net/netfilter/nf_tables.h> #include <net/netfilter/nf_tables_ipv6.h> +static unsigned int nft_do_chain_ipv6(const struct nf_hook_ops *ops, + struct sk_buff *skb, + const struct net_device *in, + const struct net_device *out, + int (*okfn)(struct sk_buff *)) +{ + struct nft_pktinfo pkt; + + /* malformed packet, drop it */ + if (nft_set_pktinfo_ipv6(&pkt, ops, skb, in, out) < 0) + return NF_DROP; + + return nft_do_chain(&pkt, ops); +} + static unsigned int nft_ipv6_output(const struct nf_hook_ops *ops, struct sk_buff *skb, const struct net_device *in, const struct net_device *out, int (*okfn)(struct sk_buff *)) { - struct nft_pktinfo pkt; - if (unlikely(skb->len < sizeof(struct ipv6hdr))) { if (net_ratelimit()) pr_info("nf_tables_ipv6: ignoring short SOCK_RAW " "packet\n"); return NF_ACCEPT; } - if (nft_set_pktinfo_ipv6(&pkt, ops, skb, in, out) < 0) - return NF_DROP; - return nft_do_chain_pktinfo(&pkt, ops); + return nft_do_chain_ipv6(ops, skb, in, out, okfn); } -static struct nft_af_info nft_af_ipv6 __read_mostly = { +struct nft_af_info nft_af_ipv6 __read_mostly = { .family = NFPROTO_IPV6, .nhooks = NF_INET_NUMHOOKS, .owner = THIS_MODULE, + .nops = 1, .hooks = { + [NF_INET_LOCAL_IN] = nft_do_chain_ipv6, [NF_INET_LOCAL_OUT] = nft_ipv6_output, + [NF_INET_FORWARD] = nft_do_chain_ipv6, + [NF_INET_PRE_ROUTING] = nft_do_chain_ipv6, + [NF_INET_POST_ROUTING] = nft_do_chain_ipv6, }, }; +EXPORT_SYMBOL_GPL(nft_af_ipv6); static int nf_tables_ipv6_init_net(struct net *net) { @@ -73,44 +90,28 @@ static struct pernet_operations nf_tables_ipv6_net_ops = { .exit = nf_tables_ipv6_exit_net, }; -static unsigned int -nft_do_chain_ipv6(const struct nf_hook_ops *ops, - struct sk_buff *skb, - const struct net_device *in, - const struct net_device *out, - int (*okfn)(struct sk_buff *)) -{ - struct nft_pktinfo pkt; - - /* malformed packet, drop it */ - if (nft_set_pktinfo_ipv6(&pkt, ops, skb, in, out) < 0) - return NF_DROP; - - return nft_do_chain_pktinfo(&pkt, ops); -} - -static struct nf_chain_type filter_ipv6 = { - .family = NFPROTO_IPV6, +static const struct nf_chain_type filter_ipv6 = { .name = "filter", .type = NFT_CHAIN_T_DEFAULT, + .family = NFPROTO_IPV6, + .owner = THIS_MODULE, .hook_mask = (1 << NF_INET_LOCAL_IN) | (1 << NF_INET_LOCAL_OUT) | (1 << NF_INET_FORWARD) | (1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_POST_ROUTING), - .fn = { - [NF_INET_LOCAL_IN] = nft_do_chain_ipv6, - [NF_INET_LOCAL_OUT] = nft_ipv6_output, - [NF_INET_FORWARD] = nft_do_chain_ipv6, - [NF_INET_PRE_ROUTING] = nft_do_chain_ipv6, - [NF_INET_POST_ROUTING] = nft_do_chain_ipv6, - }, }; static int __init nf_tables_ipv6_init(void) { + int ret; + nft_register_chain_type(&filter_ipv6); - return register_pernet_subsys(&nf_tables_ipv6_net_ops); + ret = register_pernet_subsys(&nf_tables_ipv6_net_ops); + if (ret < 0) + nft_unregister_chain_type(&filter_ipv6); + + return ret; } static void __exit nf_tables_ipv6_exit(void) diff --git a/net/ipv6/netfilter/nft_chain_nat_ipv6.c b/net/ipv6/netfilter/nft_chain_nat_ipv6.c index e86dcd70dc76..9c3297a768fd 100644 --- a/net/ipv6/netfilter/nft_chain_nat_ipv6.c +++ b/net/ipv6/netfilter/nft_chain_nat_ipv6.c @@ -79,7 +79,7 @@ static unsigned int nf_nat_ipv6_fn(const struct nf_hook_ops *ops, nft_set_pktinfo_ipv6(&pkt, ops, skb, in, out); - ret = nft_do_chain_pktinfo(&pkt, ops); + ret = nft_do_chain(&pkt, ops); if (ret != NF_ACCEPT) return ret; if (!nf_nat_initialized(ct, maniptype)) { @@ -170,21 +170,21 @@ static unsigned int nf_nat_ipv6_output(const struct nf_hook_ops *ops, return ret; } -static struct nf_chain_type nft_chain_nat_ipv6 = { - .family = NFPROTO_IPV6, +static const struct nf_chain_type nft_chain_nat_ipv6 = { .name = "nat", .type = NFT_CHAIN_T_NAT, + .family = NFPROTO_IPV6, + .owner = THIS_MODULE, .hook_mask = (1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_POST_ROUTING) | (1 << NF_INET_LOCAL_OUT) | (1 << NF_INET_LOCAL_IN), - .fn = { + .hooks = { [NF_INET_PRE_ROUTING] = nf_nat_ipv6_prerouting, [NF_INET_POST_ROUTING] = nf_nat_ipv6_postrouting, [NF_INET_LOCAL_OUT] = nf_nat_ipv6_output, [NF_INET_LOCAL_IN] = nf_nat_ipv6_fn, }, - .me = THIS_MODULE, }; static int __init nft_chain_nat_ipv6_init(void) diff --git a/net/ipv6/netfilter/nft_chain_route_ipv6.c b/net/ipv6/netfilter/nft_chain_route_ipv6.c index 3fe40f0456ad..42031299585e 100644 --- a/net/ipv6/netfilter/nft_chain_route_ipv6.c +++ b/net/ipv6/netfilter/nft_chain_route_ipv6.c @@ -47,7 +47,7 @@ static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops, /* flowlabel and prio (includes version, which shouldn't change either */ flowlabel = *((u32 *)ipv6_hdr(skb)); - ret = nft_do_chain_pktinfo(&pkt, ops); + ret = nft_do_chain(&pkt, ops); if (ret != NF_DROP && ret != NF_QUEUE && (memcmp(&ipv6_hdr(skb)->saddr, &saddr, sizeof(saddr)) || memcmp(&ipv6_hdr(skb)->daddr, &daddr, sizeof(daddr)) || @@ -59,15 +59,15 @@ static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops, return ret; } -static struct nf_chain_type nft_chain_route_ipv6 = { - .family = NFPROTO_IPV6, +static const struct nf_chain_type nft_chain_route_ipv6 = { .name = "route", .type = NFT_CHAIN_T_ROUTE, + .family = NFPROTO_IPV6, + .owner = THIS_MODULE, .hook_mask = (1 << NF_INET_LOCAL_OUT), - .fn = { + .hooks = { [NF_INET_LOCAL_OUT] = nf_route_table_hook, }, - .me = THIS_MODULE, }; static int __init nft_chain_route_init(void) diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c index a83243c3d656..fb9beb78f00b 100644 --- a/net/ipv6/ping.c +++ b/net/ipv6/ping.c @@ -31,7 +31,7 @@ struct proto pingv6_prot = { .owner = THIS_MODULE, .init = ping_init_sock, .close = ping_close, - .connect = ip6_datagram_connect, + .connect = ip6_datagram_connect_v6_only, .disconnect = udp_disconnect, .setsockopt = ipv6_setsockopt, .getsockopt = ipv6_getsockopt, @@ -62,10 +62,9 @@ static int dummy_ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, { return -EAFNOSUPPORT; } -static int dummy_ip6_datagram_recv_ctl(struct sock *sk, struct msghdr *msg, +static void dummy_ip6_datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb) { - return -EAFNOSUPPORT; } static int dummy_icmpv6_err_convert(u8 type, u8 code, int *err) { @@ -103,7 +102,7 @@ int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, return err; if (msg->msg_name) { - struct sockaddr_in6 *u = (struct sockaddr_in6 *) msg->msg_name; + DECLARE_SOCKADDR(struct sockaddr_in6 *, u, msg->msg_name); if (msg->msg_namelen < sizeof(struct sockaddr_in6) || u->sin6_family != AF_INET6) { return -EINVAL; @@ -145,7 +144,7 @@ int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, else if (!fl6.flowi6_oif) fl6.flowi6_oif = np->ucast_oif; - dst = ip6_sk_dst_lookup_flow(sk, &fl6, daddr, 1); + dst = ip6_sk_dst_lookup_flow(sk, &fl6, daddr); if (IS_ERR(dst)) return PTR_ERR(dst); rt = (struct rt6_info *) dst; @@ -254,7 +253,9 @@ int __init pingv6_init(void) return ret; #endif pingv6_ops.ipv6_recv_error = ipv6_recv_error; - pingv6_ops.ip6_datagram_recv_ctl = ip6_datagram_recv_ctl; + pingv6_ops.ip6_datagram_recv_common_ctl = ip6_datagram_recv_common_ctl; + pingv6_ops.ip6_datagram_recv_specific_ctl = + ip6_datagram_recv_specific_ctl; pingv6_ops.icmpv6_err_convert = icmpv6_err_convert; pingv6_ops.ipv6_icmp_error = ipv6_icmp_error; pingv6_ops.ipv6_chk_addr = ipv6_chk_addr; @@ -267,7 +268,8 @@ int __init pingv6_init(void) void pingv6_exit(void) { pingv6_ops.ipv6_recv_error = dummy_ipv6_recv_error; - pingv6_ops.ip6_datagram_recv_ctl = dummy_ip6_datagram_recv_ctl; + pingv6_ops.ip6_datagram_recv_common_ctl = dummy_ip6_datagram_recv_ctl; + pingv6_ops.ip6_datagram_recv_specific_ctl = dummy_ip6_datagram_recv_ctl; pingv6_ops.icmpv6_err_convert = dummy_icmpv6_err_convert; pingv6_ops.ipv6_icmp_error = dummy_ipv6_icmp_error; pingv6_ops.ipv6_chk_addr = dummy_ipv6_chk_addr; diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index b6bb87e55805..1f29996e368a 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -250,6 +250,10 @@ static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len) if (addr_len < SIN6_LEN_RFC2133) return -EINVAL; + + if (addr->sin6_family != AF_INET6) + return -EINVAL; + addr_type = ipv6_addr_type(&addr->sin6_addr); /* Raw sockets are IPv6 only */ @@ -457,7 +461,7 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk, int noblock, int flags, int *addr_len) { struct ipv6_pinfo *np = inet6_sk(sk); - struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)msg->msg_name; + DECLARE_SOCKADDR(struct sockaddr_in6 *, sin6, msg->msg_name); struct sk_buff *skb; size_t copied; int err; @@ -734,7 +738,7 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, size_t len) { struct ipv6_txoptions opt_space; - struct sockaddr_in6 * sin6 = (struct sockaddr_in6 *) msg->msg_name; + DECLARE_SOCKADDR(struct sockaddr_in6 *, sin6, msg->msg_name); struct in6_addr *daddr, *final_p, final; struct inet_sock *inet = inet_sk(sk); struct ipv6_pinfo *np = inet6_sk(sk); @@ -864,7 +868,7 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk, fl6.flowi6_oif = np->ucast_oif; security_sk_classify_flow(sk, flowi6_to_flowi(&fl6)); - dst = ip6_dst_lookup_flow(sk, &fl6, final_p, true); + dst = ip6_dst_lookup_flow(sk, &fl6, final_p); if (IS_ERR(dst)) { err = PTR_ERR(dst); goto out; @@ -1209,7 +1213,7 @@ struct proto rawv6_prot = { .owner = THIS_MODULE, .close = rawv6_close, .destroy = raw6_destroy, - .connect = ip6_datagram_connect, + .connect = ip6_datagram_connect_v6_only, .disconnect = udp_disconnect, .ioctl = rawv6_ioctl, .init = rawv6_init_sk, diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 4b4944c3e4c4..11dac21e6586 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -66,8 +66,9 @@ #endif enum rt6_nud_state { - RT6_NUD_FAIL_HARD = -2, - RT6_NUD_FAIL_SOFT = -1, + RT6_NUD_FAIL_HARD = -3, + RT6_NUD_FAIL_PROBE = -2, + RT6_NUD_FAIL_DO_RR = -1, RT6_NUD_SUCCEED = 1 }; @@ -103,6 +104,36 @@ static struct rt6_info *rt6_get_route_info(struct net *net, const struct in6_addr *gwaddr, int ifindex); #endif +static void rt6_bind_peer(struct rt6_info *rt, int create) +{ + struct inet_peer_base *base; + struct inet_peer *peer; + + base = inetpeer_base_ptr(rt->_rt6i_peer); + if (!base) + return; + + peer = inet_getpeer_v6(base, &rt->rt6i_dst.addr, create); + if (peer) { + if (!rt6_set_peer(rt, peer)) + inet_putpeer(peer); + } +} + +static struct inet_peer *__rt6_get_peer(struct rt6_info *rt, int create) +{ + if (rt6_has_peer(rt)) + return rt6_peer_ptr(rt); + + rt6_bind_peer(rt, create); + return (rt6_has_peer(rt) ? rt6_peer_ptr(rt) : NULL); +} + +static struct inet_peer *rt6_get_peer_create(struct rt6_info *rt) +{ + return __rt6_get_peer(rt, 1); +} + static u32 *ipv6_cow_metrics(struct dst_entry *dst, unsigned long old) { struct rt6_info *rt = (struct rt6_info *) dst; @@ -311,22 +342,6 @@ static void ip6_dst_destroy(struct dst_entry *dst) } } -void rt6_bind_peer(struct rt6_info *rt, int create) -{ - struct inet_peer_base *base; - struct inet_peer *peer; - - base = inetpeer_base_ptr(rt->_rt6i_peer); - if (!base) - return; - - peer = inet_getpeer_v6(base, &rt->rt6i_dst.addr, create); - if (peer) { - if (!rt6_set_peer(rt, peer)) - inet_putpeer(peer); - } -} - static void ip6_dst_ifdown(struct dst_entry *dst, struct net_device *dev, int how) { @@ -521,7 +536,7 @@ static void rt6_probe(struct rt6_info *rt) work = kmalloc(sizeof(*work), GFP_ATOMIC); if (neigh && work) - neigh->updated = jiffies; + __neigh_set_probe_once(neigh); if (neigh) write_unlock(&neigh->lock); @@ -577,11 +592,13 @@ static inline enum rt6_nud_state rt6_check_neigh(struct rt6_info *rt) #ifdef CONFIG_IPV6_ROUTER_PREF else if (!(neigh->nud_state & NUD_FAILED)) ret = RT6_NUD_SUCCEED; + else + ret = RT6_NUD_FAIL_PROBE; #endif read_unlock(&neigh->lock); } else { ret = IS_ENABLED(CONFIG_IPV6_ROUTER_PREF) ? - RT6_NUD_SUCCEED : RT6_NUD_FAIL_SOFT; + RT6_NUD_SUCCEED : RT6_NUD_FAIL_DO_RR; } rcu_read_unlock_bh(); @@ -618,16 +635,17 @@ static struct rt6_info *find_match(struct rt6_info *rt, int oif, int strict, goto out; m = rt6_score_route(rt, oif, strict); - if (m == RT6_NUD_FAIL_SOFT) { + if (m == RT6_NUD_FAIL_DO_RR) { match_do_rr = true; m = 0; /* lowest valid score */ - } else if (m < 0) { + } else if (m == RT6_NUD_FAIL_HARD) { goto out; } if (strict & RT6_LOOKUP_F_REACHABLE) rt6_probe(rt); + /* note that m can be RT6_NUD_FAIL_PROBE at this point */ if (m > *mpri) { *do_rr = match_do_rr; *mpri = m; @@ -2238,7 +2256,7 @@ void rt6_remove_prefsrc(struct inet6_ifaddr *ifp) .net = net, .addr = &ifp->addr, }; - fib6_clean_all(net, fib6_remove_prefsrc, 0, &adni); + fib6_clean_all(net, fib6_remove_prefsrc, &adni); } struct arg_dev_net { @@ -2265,7 +2283,7 @@ void rt6_ifdown(struct net *net, struct net_device *dev) .net = net, }; - fib6_clean_all(net, fib6_ifdown, 0, &adn); + fib6_clean_all(net, fib6_ifdown, &adn); icmp6_clean_all(fib6_ifdown, &adn); } @@ -2320,7 +2338,7 @@ void rt6_mtu_change(struct net_device *dev, unsigned int mtu) .mtu = mtu, }; - fib6_clean_all(dev_net(dev), rt6_mtu_change_route, 0, &arg); + fib6_clean_all(dev_net(dev), rt6_mtu_change_route, &arg); } static const struct nla_policy rtm_ipv6_policy[RTA_MAX+1] = { diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index d3005b34476a..3dfbcf1dcb1c 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -671,7 +671,7 @@ static int ipip6_rcv(struct sk_buff *skb) tunnel = ipip6_tunnel_lookup(dev_net(skb->dev), skb->dev, iph->saddr, iph->daddr); if (tunnel != NULL) { - struct pcpu_tstats *tstats; + struct pcpu_sw_netstats *tstats; if (tunnel->parms.iph.protocol != IPPROTO_IPV6 && tunnel->parms.iph.protocol != 0) @@ -1365,12 +1365,12 @@ static int ipip6_tunnel_init(struct net_device *dev) memcpy(dev->broadcast, &tunnel->parms.iph.daddr, 4); ipip6_tunnel_bind_dev(dev); - dev->tstats = alloc_percpu(struct pcpu_tstats); + dev->tstats = alloc_percpu(struct pcpu_sw_netstats); if (!dev->tstats) return -ENOMEM; for_each_possible_cpu(i) { - struct pcpu_tstats *ipip6_tunnel_stats; + struct pcpu_sw_netstats *ipip6_tunnel_stats; ipip6_tunnel_stats = per_cpu_ptr(dev->tstats, i); u64_stats_init(&ipip6_tunnel_stats->syncp); } @@ -1395,12 +1395,12 @@ static int __net_init ipip6_fb_tunnel_init(struct net_device *dev) iph->ihl = 5; iph->ttl = 64; - dev->tstats = alloc_percpu(struct pcpu_tstats); + dev->tstats = alloc_percpu(struct pcpu_sw_netstats); if (!dev->tstats) return -ENOMEM; for_each_possible_cpu(i) { - struct pcpu_tstats *ipip6_fb_stats; + struct pcpu_sw_netstats *ipip6_fb_stats; ipip6_fb_stats = per_cpu_ptr(dev->tstats, i); u64_stats_init(&ipip6_fb_stats->syncp); } diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c index 535a3ad262f1..bb53a5e73c1a 100644 --- a/net/ipv6/syncookies.c +++ b/net/ipv6/syncookies.c @@ -247,7 +247,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb) fl6.fl6_sport = inet_sk(sk)->inet_sport; security_req_classify_flow(req, flowi6_to_flowi(&fl6)); - dst = ip6_dst_lookup_flow(sk, &fl6, final_p, false); + dst = ip6_dst_lookup_flow(sk, &fl6, final_p); if (IS_ERR(dst)) goto out_free; } diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c index 107b2f1d90ae..7f405a168822 100644 --- a/net/ipv6/sysctl_net_ipv6.c +++ b/net/ipv6/sysctl_net_ipv6.c @@ -24,6 +24,20 @@ static struct ctl_table ipv6_table_template[] = { .mode = 0644, .proc_handler = proc_dointvec }, + { + .procname = "anycast_src_echo_reply", + .data = &init_net.ipv6.sysctl.anycast_src_echo_reply, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec + }, + { + .procname = "flowlabel_consistency", + .data = &init_net.ipv6.sysctl.flowlabel_consistency, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec + }, { } }; @@ -51,6 +65,8 @@ static int __net_init ipv6_sysctl_net_init(struct net *net) if (!ipv6_table) goto out; ipv6_table[0].data = &net->ipv6.sysctl.bindv6only; + ipv6_table[1].data = &net->ipv6.sysctl.anycast_src_echo_reply; + ipv6_table[2].data = &net->ipv6.sysctl.flowlabel_consistency; ipv6_route_table = ipv6_route_sysctl_init(net); if (!ipv6_route_table) diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index f67033b4bb66..889079b2ea85 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -164,12 +164,12 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr, * connect() to INADDR_ANY means loopback (BSD'ism). */ - if(ipv6_addr_any(&usin->sin6_addr)) + if (ipv6_addr_any(&usin->sin6_addr)) usin->sin6_addr.s6_addr[15] = 0x1; addr_type = ipv6_addr_type(&usin->sin6_addr); - if(addr_type & IPV6_ADDR_MULTICAST) + if (addr_type & IPV6_ADDR_MULTICAST) return -ENETUNREACH; if (addr_type&IPV6_ADDR_LINKLOCAL) { @@ -257,7 +257,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr, security_sk_classify_flow(sk, flowi6_to_flowi(&fl6)); - dst = ip6_dst_lookup_flow(sk, &fl6, final_p, true); + dst = ip6_dst_lookup_flow(sk, &fl6, final_p); if (IS_ERR(dst)) { err = PTR_ERR(dst); goto failure; @@ -336,7 +336,7 @@ static void tcp_v6_mtu_reduced(struct sock *sk) static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, u8 type, u8 code, int offset, __be32 info) { - const struct ipv6hdr *hdr = (const struct ipv6hdr*)skb->data; + const struct ipv6hdr *hdr = (const struct ipv6hdr *)skb->data; const struct tcphdr *th = (struct tcphdr *)(skb->data+offset); struct ipv6_pinfo *np; struct sock *sk; @@ -397,6 +397,9 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, if (sk->sk_state == TCP_LISTEN) goto out; + if (!ip6_sk_accept_pmtu(sk)) + goto out; + tp->mtu_info = ntohl(info); if (!sock_owned_by_user(sk)) tcp_v6_mtu_reduced(sk); @@ -466,7 +469,7 @@ static int tcp_v6_send_synack(struct sock *sk, struct dst_entry *dst, { struct inet_request_sock *ireq = inet_rsk(req); struct ipv6_pinfo *np = inet6_sk(sk); - struct sk_buff * skb; + struct sk_buff *skb; int err = -ENOMEM; /* First, grab a route. */ @@ -480,6 +483,9 @@ static int tcp_v6_send_synack(struct sock *sk, struct dst_entry *dst, &ireq->ir_v6_rmt_addr); fl6->daddr = ireq->ir_v6_rmt_addr; + if (np->repflow && (ireq->pktopts != NULL)) + fl6->flowlabel = ip6_flowlabel(ipv6_hdr(ireq->pktopts)); + skb_set_queue_mapping(skb, queue_mapping); err = ip6_xmit(sk, skb, fl6, np->opt, np->tclass); err = net_xmit_eval(err); @@ -721,7 +727,8 @@ static const struct tcp_request_sock_ops tcp_request_sock_ipv6_ops = { static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win, u32 tsval, u32 tsecr, - struct tcp_md5sig_key *key, int rst, u8 tclass) + struct tcp_md5sig_key *key, int rst, u8 tclass, + u32 label) { const struct tcphdr *th = tcp_hdr(skb); struct tcphdr *t1; @@ -783,6 +790,7 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win, memset(&fl6, 0, sizeof(fl6)); fl6.daddr = ipv6_hdr(skb)->saddr; fl6.saddr = ipv6_hdr(skb)->daddr; + fl6.flowlabel = label; buff->ip_summed = CHECKSUM_PARTIAL; buff->csum = 0; @@ -800,7 +808,7 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win, * Underlying function will use this to retrieve the network * namespace */ - dst = ip6_dst_lookup_flow(ctl_sk, &fl6, NULL, false); + dst = ip6_dst_lookup_flow(ctl_sk, &fl6, NULL); if (!IS_ERR(dst)) { skb_dst_set(buff, dst); ip6_xmit(ctl_sk, buff, &fl6, NULL, tclass); @@ -868,7 +876,7 @@ static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb) ack_seq = ntohl(th->seq) + th->syn + th->fin + skb->len - (th->doff << 2); - tcp_v6_send_response(skb, seq, ack_seq, 0, 0, 0, key, 1, 0); + tcp_v6_send_response(skb, seq, ack_seq, 0, 0, 0, key, 1, 0, 0); #ifdef CONFIG_TCP_MD5SIG release_sk1: @@ -881,9 +889,11 @@ release_sk1: static void tcp_v6_send_ack(struct sk_buff *skb, u32 seq, u32 ack, u32 win, u32 tsval, u32 tsecr, - struct tcp_md5sig_key *key, u8 tclass) + struct tcp_md5sig_key *key, u8 tclass, + u32 label) { - tcp_v6_send_response(skb, seq, ack, win, tsval, tsecr, key, 0, tclass); + tcp_v6_send_response(skb, seq, ack, win, tsval, tsecr, key, 0, tclass, + label); } static void tcp_v6_timewait_ack(struct sock *sk, struct sk_buff *skb) @@ -895,7 +905,7 @@ static void tcp_v6_timewait_ack(struct sock *sk, struct sk_buff *skb) tcptw->tw_rcv_wnd >> tw->tw_rcv_wscale, tcp_time_stamp + tcptw->tw_ts_offset, tcptw->tw_ts_recent, tcp_twsk_md5_key(tcptw), - tw->tw_tclass); + tw->tw_tclass, (tw->tw_flowlabel << 12)); inet_twsk_put(tw); } @@ -905,11 +915,12 @@ static void tcp_v6_reqsk_send_ack(struct sock *sk, struct sk_buff *skb, { tcp_v6_send_ack(skb, tcp_rsk(req)->snt_isn + 1, tcp_rsk(req)->rcv_isn + 1, req->rcv_wnd, tcp_time_stamp, req->ts_recent, - tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->daddr), 0); + tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->daddr), + 0, 0); } -static struct sock *tcp_v6_hnd_req(struct sock *sk,struct sk_buff *skb) +static struct sock *tcp_v6_hnd_req(struct sock *sk, struct sk_buff *skb) { struct request_sock *req, **prev; const struct tcphdr *th = tcp_hdr(skb); @@ -1010,7 +1021,8 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb) if (!isn) { if (ipv6_opt_accepted(sk, skb) || np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo || - np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim) { + np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim || + np->repflow) { atomic_inc(&skb->users); ireq->pktopts = skb; } @@ -1082,9 +1094,9 @@ drop: return 0; /* don't send reset */ } -static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, - struct request_sock *req, - struct dst_entry *dst) +static struct sock *tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, + struct request_sock *req, + struct dst_entry *dst) { struct inet_request_sock *ireq; struct ipv6_pinfo *newnp, *np = inet6_sk(sk); @@ -1134,7 +1146,9 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, newnp->opt = NULL; newnp->mcast_oif = inet6_iif(skb); newnp->mcast_hops = ipv6_hdr(skb)->hop_limit; - newnp->rcv_tclass = ipv6_get_dsfield(ipv6_hdr(skb)); + newnp->rcv_flowinfo = ip6_flowinfo(ipv6_hdr(skb)); + if (np->repflow) + newnp->flow_label = ip6_flowlabel(ipv6_hdr(skb)); /* * No need to charge this sock to the relevant IPv6 refcnt debug socks count @@ -1214,7 +1228,9 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, newnp->opt = NULL; newnp->mcast_oif = inet6_iif(skb); newnp->mcast_hops = ipv6_hdr(skb)->hop_limit; - newnp->rcv_tclass = ipv6_get_dsfield(ipv6_hdr(skb)); + newnp->rcv_flowinfo = ip6_flowinfo(ipv6_hdr(skb)); + if (np->repflow) + newnp->flow_label = ip6_flowlabel(ipv6_hdr(skb)); /* Clone native IPv6 options from listening socket (if any) @@ -1230,7 +1246,6 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, inet_csk(newsk)->icsk_ext_hdr_len = (newnp->opt->opt_nflen + newnp->opt->opt_flen); - tcp_mtup_init(newsk); tcp_sync_mss(newsk, dst_mtu(dst)); newtp->advmss = dst_metric_advmss(dst); if (tcp_sk(sk)->rx_opt.user_mss && @@ -1379,7 +1394,7 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb) * otherwise we just shortcircuit this and continue with * the new socket.. */ - if(nsk != sk) { + if (nsk != sk) { sock_rps_save_rxhash(nsk, skb); if (tcp_child_process(sk, nsk, skb)) goto reset; @@ -1424,8 +1439,10 @@ ipv6_pktoptions: np->mcast_oif = inet6_iif(opt_skb); if (np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim) np->mcast_hops = ipv6_hdr(opt_skb)->hop_limit; - if (np->rxopt.bits.rxtclass) - np->rcv_tclass = ipv6_get_dsfield(ipv6_hdr(opt_skb)); + if (np->rxopt.bits.rxflow || np->rxopt.bits.rxtclass) + np->rcv_flowinfo = ip6_flowinfo(ipv6_hdr(opt_skb)); + if (np->repflow) + np->flow_label = ip6_flowlabel(ipv6_hdr(opt_skb)); if (ipv6_opt_accepted(sk, opt_skb)) { skb_set_owner_r(opt_skb, sk); opt_skb = xchg(&np->pktoptions, opt_skb); @@ -1739,7 +1756,7 @@ static void get_openreq6(struct seq_file *seq, dest->s6_addr32[2], dest->s6_addr32[3], ntohs(inet_rsk(req)->ir_rmt_port), TCP_SYN_RECV, - 0,0, /* could print option size, but that is af dependent. */ + 0, 0, /* could print option size, but that is af dependent. */ 1, /* timers active (only the expire timer) */ jiffies_to_clock_t(ttd), req->num_timeout, @@ -1798,7 +1815,7 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) atomic_read(&sp->sk_refcnt), sp, jiffies_to_clock_t(icsk->icsk_rto), jiffies_to_clock_t(icsk->icsk_ack.ato), - (icsk->icsk_ack.quick << 1 ) | icsk->icsk_ack.pingpong, + (icsk->icsk_ack.quick << 1) | icsk->icsk_ack.pingpong, tp->snd_cwnd, tcp_in_initial_slowstart(tp) ? -1 : tp->snd_ssthresh ); diff --git a/net/ipv6/tcpv6_offload.c b/net/ipv6/tcpv6_offload.c index 6d18157dc32c..0d78132ff18a 100644 --- a/net/ipv6/tcpv6_offload.c +++ b/net/ipv6/tcpv6_offload.c @@ -66,13 +66,13 @@ skip_csum: return tcp_gro_receive(head, skb); } -static int tcp6_gro_complete(struct sk_buff *skb) +static int tcp6_gro_complete(struct sk_buff *skb, int thoff) { const struct ipv6hdr *iph = ipv6_hdr(skb); struct tcphdr *th = tcp_hdr(skb); - th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb), - &iph->saddr, &iph->daddr, 0); + th->check = ~tcp_v6_check(skb->len - thoff, &iph->saddr, + &iph->daddr, 0); skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6; return tcp_gro_complete(skb); diff --git a/net/ipv6/tunnel6.c b/net/ipv6/tunnel6.c index 4b0f50d9a962..2c4e4c5c7614 100644 --- a/net/ipv6/tunnel6.c +++ b/net/ipv6/tunnel6.c @@ -12,8 +12,7 @@ * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * along with this program; if not, see <http://www.gnu.org/licenses/>. * * Authors Mitsuru KANDA <mk@linux-ipv6.org> * YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 089c741a3992..1e586d92260e 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -460,9 +460,7 @@ try_again: /* Copy the address. */ if (msg->msg_name) { - struct sockaddr_in6 *sin6; - - sin6 = (struct sockaddr_in6 *) msg->msg_name; + DECLARE_SOCKADDR(struct sockaddr_in6 *, sin6, msg->msg_name); sin6->sin6_family = AF_INET6; sin6->sin6_port = udp_hdr(skb)->source; sin6->sin6_flowinfo = 0; @@ -479,12 +477,16 @@ try_again: } *addr_len = sizeof(*sin6); } + + if (np->rxopt.all) + ip6_datagram_recv_common_ctl(sk, msg, skb); + if (is_udp4) { if (inet->cmsg_flags) ip_cmsg_recv(msg, skb); } else { if (np->rxopt.all) - ip6_datagram_recv_ctl(sk, msg, skb); + ip6_datagram_recv_specific_ctl(sk, msg, skb); } err = copied; @@ -538,8 +540,11 @@ void __udp6_lib_err(struct sk_buff *skb, struct inet6_skb_parm *opt, if (sk == NULL) return; - if (type == ICMPV6_PKT_TOOBIG) + if (type == ICMPV6_PKT_TOOBIG) { + if (!ip6_sk_accept_pmtu(sk)) + goto out; ip6_sk_update_pmtu(skb, sk, info); + } if (type == NDISC_REDIRECT) { ip6_sk_redirect(skb, sk); goto out; @@ -1038,7 +1043,7 @@ int udpv6_sendmsg(struct kiocb *iocb, struct sock *sk, struct udp_sock *up = udp_sk(sk); struct inet_sock *inet = inet_sk(sk); struct ipv6_pinfo *np = inet6_sk(sk); - struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) msg->msg_name; + DECLARE_SOCKADDR(struct sockaddr_in6 *, sin6, msg->msg_name); struct in6_addr *daddr, *final_p, final; struct ipv6_txoptions *opt = NULL; struct ip6_flowlabel *flowlabel = NULL; @@ -1220,7 +1225,7 @@ do_udp_sendmsg: security_sk_classify_flow(sk, flowi6_to_flowi(&fl6)); - dst = ip6_sk_dst_lookup_flow(sk, &fl6, final_p, true); + dst = ip6_sk_dst_lookup_flow(sk, &fl6, final_p); if (IS_ERR(dst)) { err = PTR_ERR(dst); dst = NULL; diff --git a/net/ipv6/xfrm6_mode_ro.c b/net/ipv6/xfrm6_mode_ro.c index 63d5d493098a..0e015906f9ca 100644 --- a/net/ipv6/xfrm6_mode_ro.c +++ b/net/ipv6/xfrm6_mode_ro.c @@ -15,8 +15,7 @@ * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * along with this program; if not, see <http://www.gnu.org/licenses/>. */ /* * Authors: diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c index de2bcfaaf759..1c66465a42dd 100644 --- a/net/ipv6/xfrm6_tunnel.c +++ b/net/ipv6/xfrm6_tunnel.c @@ -12,8 +12,7 @@ * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * along with this program; if not, see <http://www.gnu.org/licenses/>. * * Authors Mitsuru KANDA <mk@linux-ipv6.org> * YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> |