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-rw-r--r--net/ipv6/addrconf.c4
-rw-r--r--net/ipv6/addrconf_core.c2
-rw-r--r--net/ipv6/af_inet6.c1
-rw-r--r--net/ipv6/esp6.c6
-rw-r--r--net/ipv6/fib6_rules.c9
-rw-r--r--net/ipv6/icmp.c6
-rw-r--r--net/ipv6/ioam6.c16
-rw-r--r--net/ipv6/ip6_fib.c1
-rw-r--r--net/ipv6/ip6_gre.c8
-rw-r--r--net/ipv6/ip6_offload.c20
-rw-r--r--net/ipv6/ip6_output.c2
-rw-r--r--net/ipv6/ip6_tunnel.c4
-rw-r--r--net/ipv6/ip6_vti.c6
-rw-r--r--net/ipv6/ip6mr.c8
-rw-r--r--net/ipv6/ipv6_sockglue.c9
-rw-r--r--net/ipv6/raw.c3
-rw-r--r--net/ipv6/route.c83
-rw-r--r--net/ipv6/seg6.c59
-rw-r--r--net/ipv6/seg6_iptunnel.c8
-rw-r--r--net/ipv6/seg6_local.c34
-rw-r--r--net/ipv6/sit.c5
-rw-r--r--net/ipv6/tcp_ipv6.c11
-rw-r--r--net/ipv6/udp.c10
-rw-r--r--net/ipv6/udp_offload.c2
-rw-r--r--net/ipv6/xfrm6_policy.c4
25 files changed, 208 insertions, 113 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 3445f8017430..3eee17790a82 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -405,13 +405,13 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev)
if (ndev->cnf.forwarding)
dev_disable_lro(dev);
/* We refer to the device */
- dev_hold(dev);
+ dev_hold_track(dev, &ndev->dev_tracker, GFP_KERNEL);
if (snmp6_alloc_dev(ndev) < 0) {
netdev_dbg(dev, "%s: cannot allocate memory for statistics\n",
__func__);
neigh_parms_release(&nd_tbl, ndev->nd_parms);
- dev_put(dev);
+ dev_put_track(dev, &ndev->dev_tracker);
kfree(ndev);
return ERR_PTR(err);
}
diff --git a/net/ipv6/addrconf_core.c b/net/ipv6/addrconf_core.c
index 1d4054bb345b..881d1477d24a 100644
--- a/net/ipv6/addrconf_core.c
+++ b/net/ipv6/addrconf_core.c
@@ -263,7 +263,7 @@ void in6_dev_finish_destroy(struct inet6_dev *idev)
#ifdef NET_REFCNT_DEBUG
pr_debug("%s: %s\n", __func__, dev ? dev->name : "NIL");
#endif
- dev_put(dev);
+ dev_put_track(dev, &idev->dev_tracker);
if (!idev->dead) {
pr_warn("Freeing alive inet6 device %p\n", idev);
return;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 1f28c9820c2e..d1636425654e 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -1023,6 +1023,7 @@ static const struct ipv6_stub ipv6_stub_impl = {
.ip6_mtu_from_fib6 = ip6_mtu_from_fib6,
.fib6_nh_init = fib6_nh_init,
.fib6_nh_release = fib6_nh_release,
+ .fib6_nh_release_dsts = fib6_nh_release_dsts,
.fib6_update_sernum = fib6_update_sernum_stub,
.fib6_rt_update = fib6_rt_update,
.ip6_del_rt = ip6_del_rt,
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index c35c211c9cb7..8bb2c407b46b 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -807,6 +807,12 @@ int esp6_input_done2(struct sk_buff *skb, int err)
struct tcphdr *th;
offset = ipv6_skip_exthdr(skb, offset, &nexthdr, &frag_off);
+
+ if (offset < 0) {
+ err = -EINVAL;
+ goto out;
+ }
+
uh = (void *)(skb->data + offset);
th = (void *)(skb->data + offset);
hdr_len += offset;
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index 40f3e4f9f33a..ec029c86ae06 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -267,6 +267,7 @@ INDIRECT_CALLABLE_SCOPE int fib6_rule_action(struct fib_rule *rule,
}
INDIRECT_CALLABLE_SCOPE bool fib6_rule_suppress(struct fib_rule *rule,
+ int flags,
struct fib_lookup_arg *arg)
{
struct fib6_result *res = arg->result;
@@ -294,8 +295,7 @@ INDIRECT_CALLABLE_SCOPE bool fib6_rule_suppress(struct fib_rule *rule,
return false;
suppress_route:
- if (!(arg->flags & FIB_LOOKUP_NOREF))
- ip6_rt_put(rt);
+ ip6_rt_put_flags(rt, flags);
return true;
}
@@ -340,10 +340,6 @@ INDIRECT_CALLABLE_SCOPE int fib6_rule_match(struct fib_rule *rule,
return 1;
}
-static const struct nla_policy fib6_rule_policy[FRA_MAX+1] = {
- FRA_GENERIC_POLICY,
-};
-
static int fib6_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
struct fib_rule_hdr *frh,
struct nlattr **tb,
@@ -459,7 +455,6 @@ static const struct fib_rules_ops __net_initconst fib6_rules_ops_template = {
.fill = fib6_rule_fill,
.nlmsg_payload = fib6_rule_nlmsg_payload,
.nlgroup = RTNLGRP_IPV6_RULE,
- .policy = fib6_rule_policy,
.owner = THIS_MODULE,
.fro_net = &init_net,
};
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index a7c31ab67c5d..96c5cc0f30ce 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -57,6 +57,7 @@
#include <net/protocol.h>
#include <net/raw.h>
#include <net/rawv6.h>
+#include <net/seg6.h>
#include <net/transp_v6.h>
#include <net/ip6_route.h>
#include <net/addrconf.h>
@@ -820,6 +821,7 @@ out_bh_enable:
void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info)
{
+ struct inet6_skb_parm *opt = IP6CB(skb);
const struct inet6_protocol *ipprot;
int inner_offset;
__be16 frag_off;
@@ -829,6 +831,8 @@ void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info)
if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
goto out;
+ seg6_icmp_srh(skb, opt);
+
nexthdr = ((struct ipv6hdr *)skb->data)->nexthdr;
if (ipv6_ext_hdr(nexthdr)) {
/* now skip over extension headers */
@@ -853,7 +857,7 @@ void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info)
ipprot = rcu_dereference(inet6_protos[nexthdr]);
if (ipprot && ipprot->err_handler)
- ipprot->err_handler(skb, NULL, type, code, inner_offset, info);
+ ipprot->err_handler(skb, opt, type, code, inner_offset, info);
raw6_icmp_error(skb, nexthdr, type, code, inner_offset, info);
return;
diff --git a/net/ipv6/ioam6.c b/net/ipv6/ioam6.c
index 122a3d47424c..e159eb4328a8 100644
--- a/net/ipv6/ioam6.c
+++ b/net/ipv6/ioam6.c
@@ -13,10 +13,12 @@
#include <linux/ioam6.h>
#include <linux/ioam6_genl.h>
#include <linux/rhashtable.h>
+#include <linux/netdevice.h>
#include <net/addrconf.h>
#include <net/genetlink.h>
#include <net/ioam6.h>
+#include <net/sch_generic.h>
static void ioam6_ns_release(struct ioam6_namespace *ns)
{
@@ -717,7 +719,19 @@ static void __ioam6_fill_trace_data(struct sk_buff *skb,
/* queue depth */
if (trace->type.bit6) {
- *(__be32 *)data = cpu_to_be32(IOAM6_U32_UNAVAILABLE);
+ struct netdev_queue *queue;
+ struct Qdisc *qdisc;
+ __u32 qlen, backlog;
+
+ if (skb_dst(skb)->dev->flags & IFF_LOOPBACK) {
+ *(__be32 *)data = cpu_to_be32(IOAM6_U32_UNAVAILABLE);
+ } else {
+ queue = skb_get_tx_queue(skb_dst(skb)->dev, skb);
+ qdisc = rcu_dereference(queue->qdisc);
+ qdisc_qstats_qlen_backlog(qdisc, &qlen, &backlog);
+
+ *(__be32 *)data = cpu_to_be32(backlog);
+ }
data += sizeof(__be32);
}
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 0371d2c14145..463c37dea449 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -15,6 +15,7 @@
#define pr_fmt(fmt) "IPv6: " fmt
+#include <linux/bpf.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/net.h>
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index d831d2439693..110839a88bc2 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -403,7 +403,7 @@ static void ip6erspan_tunnel_uninit(struct net_device *dev)
ip6erspan_tunnel_unlink_md(ign, t);
ip6gre_tunnel_unlink(ign, t);
dst_cache_reset(&t->dst_cache);
- dev_put(dev);
+ dev_put_track(dev, &t->dev_tracker);
}
static void ip6gre_tunnel_uninit(struct net_device *dev)
@@ -416,7 +416,7 @@ static void ip6gre_tunnel_uninit(struct net_device *dev)
if (ign->fb_tunnel_dev == dev)
WRITE_ONCE(ign->fb_tunnel_dev, NULL);
dst_cache_reset(&t->dst_cache);
- dev_put(dev);
+ dev_put_track(dev, &t->dev_tracker);
}
@@ -1496,7 +1496,7 @@ static int ip6gre_tunnel_init_common(struct net_device *dev)
}
ip6gre_tnl_init_features(dev);
- dev_hold(dev);
+ dev_hold_track(dev, &tunnel->dev_tracker, GFP_KERNEL);
return 0;
cleanup_dst_cache_init:
@@ -1888,7 +1888,7 @@ static int ip6erspan_tap_init(struct net_device *dev)
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
ip6erspan_tnl_link_config(tunnel, 1);
- dev_hold(dev);
+ dev_hold_track(dev, &tunnel->dev_tracker, GFP_KERNEL);
return 0;
cleanup_dst_cache_init:
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index 1b9827ff8ccf..b29e9ba5e113 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -208,7 +208,6 @@ INDIRECT_CALLABLE_SCOPE struct sk_buff *ipv6_gro_receive(struct list_head *head,
flush += ntohs(iph->payload_len) != skb_gro_len(skb);
- rcu_read_lock();
proto = iph->nexthdr;
ops = rcu_dereference(inet6_offloads[proto]);
if (!ops || !ops->callbacks.gro_receive) {
@@ -221,7 +220,7 @@ INDIRECT_CALLABLE_SCOPE struct sk_buff *ipv6_gro_receive(struct list_head *head,
ops = rcu_dereference(inet6_offloads[proto]);
if (!ops || !ops->callbacks.gro_receive)
- goto out_unlock;
+ goto out;
iph = ipv6_hdr(skb);
}
@@ -248,9 +247,9 @@ INDIRECT_CALLABLE_SCOPE struct sk_buff *ipv6_gro_receive(struct list_head *head,
* memcmp() alone below is sufficient, right?
*/
if ((first_word & htonl(0xF00FFFFF)) ||
- !ipv6_addr_equal(&iph->saddr, &iph2->saddr) ||
- !ipv6_addr_equal(&iph->daddr, &iph2->daddr) ||
- *(u16 *)&iph->nexthdr != *(u16 *)&iph2->nexthdr) {
+ !ipv6_addr_equal(&iph->saddr, &iph2->saddr) ||
+ !ipv6_addr_equal(&iph->daddr, &iph2->daddr) ||
+ *(u16 *)&iph->nexthdr != *(u16 *)&iph2->nexthdr) {
not_same_flow:
NAPI_GRO_CB(p)->same_flow = 0;
continue;
@@ -279,9 +278,6 @@ not_same_flow:
pp = indirect_call_gro_receive_l4(tcp6_gro_receive, udp6_gro_receive,
ops->callbacks.gro_receive, head, skb);
-out_unlock:
- rcu_read_unlock();
-
out:
skb_gro_flush_final(skb, pp, flush);
@@ -331,18 +327,14 @@ INDIRECT_CALLABLE_SCOPE int ipv6_gro_complete(struct sk_buff *skb, int nhoff)
iph->payload_len = htons(skb->len - nhoff - sizeof(*iph));
- rcu_read_lock();
-
nhoff += sizeof(*iph) + ipv6_exthdrs_len(iph, &ops);
if (WARN_ON(!ops || !ops->callbacks.gro_complete))
- goto out_unlock;
+ goto out;
err = INDIRECT_CALL_L4(ops->callbacks.gro_complete, tcp6_gro_complete,
udp6_gro_complete, skb, nhoff);
-out_unlock:
- rcu_read_unlock();
-
+out:
return err;
}
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 007e433d4d4d..2995f8d89e7e 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -174,7 +174,7 @@ static int __ip6_finish_output(struct net *net, struct sock *sk, struct sk_buff
#if defined(CONFIG_NETFILTER) && defined(CONFIG_XFRM)
/* Policy lookup after SNAT yielded a new policy */
if (skb_dst(skb)->xfrm) {
- IPCB(skb)->flags |= IPSKB_REROUTED;
+ IP6CB(skb)->flags |= IP6SKB_REROUTED;
return dst_output(net, sk, skb);
}
#endif
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 484aca492cc0..fe786df4f849 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -383,7 +383,7 @@ ip6_tnl_dev_uninit(struct net_device *dev)
else
ip6_tnl_unlink(ip6n, t);
dst_cache_reset(&t->dst_cache);
- dev_put(dev);
+ dev_put_track(dev, &t->dev_tracker);
}
/**
@@ -1883,7 +1883,7 @@ ip6_tnl_dev_init_gen(struct net_device *dev)
dev->min_mtu = ETH_MIN_MTU;
dev->max_mtu = IP6_MAX_MTU - dev->hard_header_len;
- dev_hold(dev);
+ dev_hold_track(dev, &t->dev_tracker, GFP_KERNEL);
return 0;
destroy_dst:
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 527e9ead7449..3a434d75925c 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -293,7 +293,7 @@ static void vti6_dev_uninit(struct net_device *dev)
RCU_INIT_POINTER(ip6n->tnls_wc[0], NULL);
else
vti6_tnl_unlink(ip6n, t);
- dev_put(dev);
+ dev_put_track(dev, &t->dev_tracker);
}
static int vti6_input_proto(struct sk_buff *skb, int nexthdr, __be32 spi,
@@ -808,6 +808,8 @@ vti6_siocdevprivate(struct net_device *dev, struct ifreq *ifr, void __user *data
struct net *net = dev_net(dev);
struct vti6_net *ip6n = net_generic(net, vti6_net_id);
+ memset(&p1, 0, sizeof(p1));
+
switch (cmd) {
case SIOCGETTUNNEL:
if (dev == ip6n->fb_tnl_dev) {
@@ -934,7 +936,7 @@ static inline int vti6_dev_init_gen(struct net_device *dev)
dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
if (!dev->tstats)
return -ENOMEM;
- dev_hold(dev);
+ dev_hold_track(dev, &t->dev_tracker, GFP_KERNEL);
return 0;
}
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 36ed9efb8825..7cf73e60e619 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -182,10 +182,6 @@ static int ip6mr_rule_match(struct fib_rule *rule, struct flowi *flp, int flags)
return 1;
}
-static const struct nla_policy ip6mr_rule_policy[FRA_MAX + 1] = {
- FRA_GENERIC_POLICY,
-};
-
static int ip6mr_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
struct fib_rule_hdr *frh, struct nlattr **tb,
struct netlink_ext_ack *extack)
@@ -218,7 +214,6 @@ static const struct fib_rules_ops __net_initconst ip6mr_rules_ops_template = {
.compare = ip6mr_rule_compare,
.fill = ip6mr_rule_fill,
.nlgroup = RTNLGRP_IPV6_RULE,
- .policy = ip6mr_rule_policy,
.owner = THIS_MODULE,
};
@@ -746,7 +741,7 @@ static int mif6_delete(struct mr_table *mrt, int vifi, int notify,
if ((v->flags & MIFF_REGISTER) && !notify)
unregister_netdevice_queue(dev, head);
- dev_put(dev);
+ dev_put_track(dev, &v->dev_tracker);
return 0;
}
@@ -919,6 +914,7 @@ static int mif6_add(struct net *net, struct mr_table *mrt,
/* And finish update writing critical data */
write_lock_bh(&mrt_lock);
v->dev = dev;
+ netdev_tracker_alloc(dev, &v->dev_tracker, GFP_ATOMIC);
#ifdef CONFIG_IPV6_PIMSM_V2
if (v->flags & MIFF_REGISTER)
mrt->mroute_reg_vif_num = vifi;
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 04683ad6d3df..a733803a710c 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -599,7 +599,14 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
/* RFC 3542, 6.5: default traffic class of 0x0 */
if (val == -1)
val = 0;
- np->tclass = val;
+ if (sk->sk_type == SOCK_STREAM) {
+ val &= ~INET_ECN_MASK;
+ val |= np->tclass & INET_ECN_MASK;
+ }
+ if (np->tclass != val) {
+ np->tclass = val;
+ sk_dst_reset(sk);
+ }
retv = 0;
break;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 60f1e4f5be5a..c51d5ce3711c 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -1020,6 +1020,9 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
struct raw6_sock *rp = raw6_sk(sk);
int val;
+ if (optlen < sizeof(val))
+ return -EINVAL;
+
if (copy_from_sockptr(&val, optval, sizeof(val)))
return -EFAULT;
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 5e8f2f15607d..e6de94203c13 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -182,8 +182,9 @@ static void rt6_uncached_list_flush_dev(struct net *net, struct net_device *dev)
if (rt_dev == dev) {
rt->dst.dev = blackhole_netdev;
- dev_hold(rt->dst.dev);
- dev_put(rt_dev);
+ dev_replace_track(rt_dev, blackhole_netdev,
+ &rt->dst.dev_tracker,
+ GFP_ATOMIC);
}
}
spin_unlock_bh(&ul->lock);
@@ -328,9 +329,7 @@ static const struct rt6_info ip6_blk_hole_entry_template = {
static void rt6_info_init(struct rt6_info *rt)
{
- struct dst_entry *dst = &rt->dst;
-
- memset(dst + 1, 0, sizeof(*rt) - sizeof(*dst));
+ memset_after(rt, 0, dst);
INIT_LIST_HEAD(&rt->rt6i_uncached);
}
@@ -594,6 +593,7 @@ struct __rt6_probe_work {
struct work_struct work;
struct in6_addr target;
struct net_device *dev;
+ netdevice_tracker dev_tracker;
};
static void rt6_probe_deferred(struct work_struct *w)
@@ -604,7 +604,7 @@ static void rt6_probe_deferred(struct work_struct *w)
addrconf_addr_solict_mult(&work->target, &mcaddr);
ndisc_send_ns(work->dev, &work->target, &mcaddr, NULL, 0);
- dev_put(work->dev);
+ dev_put_track(work->dev, &work->dev_tracker);
kfree(work);
}
@@ -658,7 +658,7 @@ static void rt6_probe(struct fib6_nh *fib6_nh)
} else {
INIT_WORK(&work->work, rt6_probe_deferred);
work->target = *nh_gw;
- dev_hold(dev);
+ dev_hold_track(dev, &work->dev_tracker, GFP_ATOMIC);
work->dev = dev;
schedule_work(&work->work);
}
@@ -3628,6 +3628,8 @@ pcpu_alloc:
}
fib6_nh->fib_nh_dev = dev;
+ netdev_tracker_alloc(dev, &fib6_nh->fib_nh_dev_tracker, gfp_flags);
+
fib6_nh->fib_nh_oif = dev->ifindex;
err = 0;
out:
@@ -3658,26 +3660,29 @@ void fib6_nh_release(struct fib6_nh *fib6_nh)
rcu_read_unlock();
- if (fib6_nh->rt6i_pcpu) {
- int cpu;
+ fib6_nh_release_dsts(fib6_nh);
+ free_percpu(fib6_nh->rt6i_pcpu);
- for_each_possible_cpu(cpu) {
- struct rt6_info **ppcpu_rt;
- struct rt6_info *pcpu_rt;
+ fib_nh_common_release(&fib6_nh->nh_common);
+}
- ppcpu_rt = per_cpu_ptr(fib6_nh->rt6i_pcpu, cpu);
- pcpu_rt = *ppcpu_rt;
- if (pcpu_rt) {
- dst_dev_put(&pcpu_rt->dst);
- dst_release(&pcpu_rt->dst);
- *ppcpu_rt = NULL;
- }
- }
+void fib6_nh_release_dsts(struct fib6_nh *fib6_nh)
+{
+ int cpu;
- free_percpu(fib6_nh->rt6i_pcpu);
- }
+ if (!fib6_nh->rt6i_pcpu)
+ return;
- fib_nh_common_release(&fib6_nh->nh_common);
+ for_each_possible_cpu(cpu) {
+ struct rt6_info *pcpu_rt, **ppcpu_rt;
+
+ ppcpu_rt = per_cpu_ptr(fib6_nh->rt6i_pcpu, cpu);
+ pcpu_rt = xchg(ppcpu_rt, NULL);
+ if (pcpu_rt) {
+ dst_dev_put(&pcpu_rt->dst);
+ dst_release(&pcpu_rt->dst);
+ }
+ }
}
static struct fib6_info *ip6_route_info_create(struct fib6_config *cfg,
@@ -5205,6 +5210,19 @@ out:
return should_notify;
}
+static int fib6_gw_from_attr(struct in6_addr *gw, struct nlattr *nla,
+ struct netlink_ext_ack *extack)
+{
+ if (nla_len(nla) < sizeof(*gw)) {
+ NL_SET_ERR_MSG(extack, "Invalid IPv6 address in RTA_GATEWAY");
+ return -EINVAL;
+ }
+
+ *gw = nla_get_in6_addr(nla);
+
+ return 0;
+}
+
static int ip6_route_multipath_add(struct fib6_config *cfg,
struct netlink_ext_ack *extack)
{
@@ -5245,10 +5263,18 @@ static int ip6_route_multipath_add(struct fib6_config *cfg,
nla = nla_find(attrs, attrlen, RTA_GATEWAY);
if (nla) {
- r_cfg.fc_gateway = nla_get_in6_addr(nla);
+ err = fib6_gw_from_attr(&r_cfg.fc_gateway, nla,
+ extack);
+ if (err)
+ goto cleanup;
+
r_cfg.fc_flags |= RTF_GATEWAY;
}
r_cfg.fc_encap = nla_find(attrs, attrlen, RTA_ENCAP);
+
+ /* RTA_ENCAP_TYPE length checked in
+ * lwtunnel_valid_encap_type_attr
+ */
nla = nla_find(attrs, attrlen, RTA_ENCAP_TYPE);
if (nla)
r_cfg.fc_encap_type = nla_get_u16(nla);
@@ -5415,7 +5441,13 @@ static int ip6_route_multipath_del(struct fib6_config *cfg,
nla = nla_find(attrs, attrlen, RTA_GATEWAY);
if (nla) {
- nla_memcpy(&r_cfg.fc_gateway, nla, 16);
+ err = fib6_gw_from_attr(&r_cfg.fc_gateway, nla,
+ extack);
+ if (err) {
+ last_err = err;
+ goto next_rtnh;
+ }
+
r_cfg.fc_flags |= RTF_GATEWAY;
}
}
@@ -5423,6 +5455,7 @@ static int ip6_route_multipath_del(struct fib6_config *cfg,
if (err)
last_err = err;
+next_rtnh:
rtnh = rtnh_next(rtnh, &remaining);
}
diff --git a/net/ipv6/seg6.c b/net/ipv6/seg6.c
index a8b5784afb1a..73aaabf0e966 100644
--- a/net/ipv6/seg6.c
+++ b/net/ipv6/seg6.c
@@ -75,6 +75,65 @@ bool seg6_validate_srh(struct ipv6_sr_hdr *srh, int len, bool reduced)
return true;
}
+struct ipv6_sr_hdr *seg6_get_srh(struct sk_buff *skb, int flags)
+{
+ struct ipv6_sr_hdr *srh;
+ int len, srhoff = 0;
+
+ if (ipv6_find_hdr(skb, &srhoff, IPPROTO_ROUTING, NULL, &flags) < 0)
+ return NULL;
+
+ if (!pskb_may_pull(skb, srhoff + sizeof(*srh)))
+ return NULL;
+
+ srh = (struct ipv6_sr_hdr *)(skb->data + srhoff);
+
+ len = (srh->hdrlen + 1) << 3;
+
+ if (!pskb_may_pull(skb, srhoff + len))
+ return NULL;
+
+ /* note that pskb_may_pull may change pointers in header;
+ * for this reason it is necessary to reload them when needed.
+ */
+ srh = (struct ipv6_sr_hdr *)(skb->data + srhoff);
+
+ if (!seg6_validate_srh(srh, len, true))
+ return NULL;
+
+ return srh;
+}
+
+/* Determine if an ICMP invoking packet contains a segment routing
+ * header. If it does, extract the offset to the true destination
+ * address, which is in the first segment address.
+ */
+void seg6_icmp_srh(struct sk_buff *skb, struct inet6_skb_parm *opt)
+{
+ __u16 network_header = skb->network_header;
+ struct ipv6_sr_hdr *srh;
+
+ /* Update network header to point to the invoking packet
+ * inside the ICMP packet, so we can use the seg6_get_srh()
+ * helper.
+ */
+ skb_reset_network_header(skb);
+
+ srh = seg6_get_srh(skb, 0);
+ if (!srh)
+ goto out;
+
+ if (srh->type != IPV6_SRCRT_TYPE_4)
+ goto out;
+
+ opt->flags |= IP6SKB_SEG6;
+ opt->srhoff = (unsigned char *)srh - skb->data;
+
+out:
+ /* Restore the network header back to the ICMP packet */
+ skb->network_header = network_header;
+}
+
static struct genl_family seg6_genl_family;
static const struct nla_policy seg6_genl_policy[SEG6_ATTR_MAX + 1] = {
diff --git a/net/ipv6/seg6_iptunnel.c b/net/ipv6/seg6_iptunnel.c
index 3adc5d9211ad..d64855010948 100644
--- a/net/ipv6/seg6_iptunnel.c
+++ b/net/ipv6/seg6_iptunnel.c
@@ -161,6 +161,14 @@ int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh, int proto)
hdr->hop_limit = ip6_dst_hoplimit(skb_dst(skb));
memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
+
+ /* the control block has been erased, so we have to set the
+ * iif once again.
+ * We read the receiving interface index directly from the
+ * skb->skb_iif as it is done in the IPv4 receiving path (i.e.:
+ * ip_rcv_core(...)).
+ */
+ IP6CB(skb)->iif = skb->skb_iif;
}
hdr->nexthdr = NEXTHDR_ROUTING;
diff --git a/net/ipv6/seg6_local.c b/net/ipv6/seg6_local.c
index 2dc40b3f373e..9fbe243a0e81 100644
--- a/net/ipv6/seg6_local.c
+++ b/net/ipv6/seg6_local.c
@@ -7,6 +7,7 @@
* eBPF support: Mathieu Xhonneux <m.xhonneux@gmail.com>
*/
+#include <linux/filter.h>
#include <linux/types.h>
#include <linux/skbuff.h>
#include <linux/net.h>
@@ -150,40 +151,11 @@ static struct seg6_local_lwt *seg6_local_lwtunnel(struct lwtunnel_state *lwt)
return (struct seg6_local_lwt *)lwt->data;
}
-static struct ipv6_sr_hdr *get_srh(struct sk_buff *skb, int flags)
-{
- struct ipv6_sr_hdr *srh;
- int len, srhoff = 0;
-
- if (ipv6_find_hdr(skb, &srhoff, IPPROTO_ROUTING, NULL, &flags) < 0)
- return NULL;
-
- if (!pskb_may_pull(skb, srhoff + sizeof(*srh)))
- return NULL;
-
- srh = (struct ipv6_sr_hdr *)(skb->data + srhoff);
-
- len = (srh->hdrlen + 1) << 3;
-
- if (!pskb_may_pull(skb, srhoff + len))
- return NULL;
-
- /* note that pskb_may_pull may change pointers in header;
- * for this reason it is necessary to reload them when needed.
- */
- srh = (struct ipv6_sr_hdr *)(skb->data + srhoff);
-
- if (!seg6_validate_srh(srh, len, true))
- return NULL;
-
- return srh;
-}
-
static struct ipv6_sr_hdr *get_and_validate_srh(struct sk_buff *skb)
{
struct ipv6_sr_hdr *srh;
- srh = get_srh(skb, IP6_FH_F_SKIP_RH);
+ srh = seg6_get_srh(skb, IP6_FH_F_SKIP_RH);
if (!srh)
return NULL;
@@ -200,7 +172,7 @@ static bool decap_and_validate(struct sk_buff *skb, int proto)
struct ipv6_sr_hdr *srh;
unsigned int off = 0;
- srh = get_srh(skb, 0);
+ srh = seg6_get_srh(skb, 0);
if (srh && srh->segments_left > 0)
return false;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 1b57ee36d668..a618dce7e0bc 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -521,7 +521,7 @@ static void ipip6_tunnel_uninit(struct net_device *dev)
ipip6_tunnel_del_prl(tunnel, NULL);
}
dst_cache_reset(&tunnel->dst_cache);
- dev_put(dev);
+ dev_put_track(dev, &tunnel->dev_tracker);
}
static int ipip6_err(struct sk_buff *skb, u32 info)
@@ -1463,7 +1463,7 @@ static int ipip6_tunnel_init(struct net_device *dev)
dev->tstats = NULL;
return err;
}
- dev_hold(dev);
+ dev_hold_track(dev, &tunnel->dev_tracker, GFP_KERNEL);
return 0;
}
@@ -1933,7 +1933,6 @@ static int __net_init sit_init_net(struct net *net)
return 0;
err_reg_dev:
- ipip6_dev_free(sitn->fb_tunnel_dev);
free_netdev(sitn->fb_tunnel_dev);
err_alloc_dev:
return err;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 3b7d6ede1364..1ac243d18c2b 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -107,7 +107,7 @@ static void inet6_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb)
if (dst && dst_hold_safe(dst)) {
const struct rt6_info *rt = (const struct rt6_info *)dst;
- sk->sk_rx_dst = dst;
+ rcu_assign_pointer(sk->sk_rx_dst, dst);
sk->sk_rx_dst_ifindex = skb->skb_iif;
sk->sk_rx_dst_cookie = rt6_get_cookie(rt);
}
@@ -1506,7 +1506,10 @@ int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
opt_skb = skb_clone(skb, sk_gfp_mask(sk, GFP_ATOMIC));
if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */
- struct dst_entry *dst = sk->sk_rx_dst;
+ struct dst_entry *dst;
+
+ dst = rcu_dereference_protected(sk->sk_rx_dst,
+ lockdep_sock_is_held(sk));
sock_rps_save_rxhash(sk, skb);
sk_mark_napi_id(sk, skb);
@@ -1514,8 +1517,8 @@ int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
if (sk->sk_rx_dst_ifindex != skb->skb_iif ||
INDIRECT_CALL_1(dst->ops->check, ip6_dst_check,
dst, sk->sk_rx_dst_cookie) == NULL) {
+ RCU_INIT_POINTER(sk->sk_rx_dst, NULL);
dst_release(dst);
- sk->sk_rx_dst = NULL;
}
}
@@ -1876,7 +1879,7 @@ INDIRECT_CALLABLE_SCOPE void tcp_v6_early_demux(struct sk_buff *skb)
skb->sk = sk;
skb->destructor = sock_edemux;
if (sk_fullsock(sk)) {
- struct dst_entry *dst = READ_ONCE(sk->sk_rx_dst);
+ struct dst_entry *dst = rcu_dereference(sk->sk_rx_dst);
if (dst)
dst = dst_check(dst, sk->sk_rx_dst_cookie);
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 6a0e569f0bb8..df216268cb02 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -17,6 +17,7 @@
* YOSHIFUJI Hideaki @USAGI: convert /proc/net/udp6 to seq_file.
*/
+#include <linux/bpf-cgroup.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
@@ -40,6 +41,7 @@
#include <net/transp_v6.h>
#include <net/ip6_route.h>
#include <net/raw.h>
+#include <net/seg6.h>
#include <net/tcp_states.h>
#include <net/ip6_checksum.h>
#include <net/ip6_tunnel.h>
@@ -561,7 +563,7 @@ int __udp6_lib_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
struct ipv6_pinfo *np;
const struct ipv6hdr *hdr = (const struct ipv6hdr *)skb->data;
const struct in6_addr *saddr = &hdr->saddr;
- const struct in6_addr *daddr = &hdr->daddr;
+ const struct in6_addr *daddr = seg6_get_daddr(skb, opt) ? : &hdr->daddr;
struct udphdr *uh = (struct udphdr *)(skb->data+offset);
bool tunnel = false;
struct sock *sk;
@@ -956,7 +958,7 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
struct dst_entry *dst = skb_dst(skb);
int ret;
- if (unlikely(sk->sk_rx_dst != dst))
+ if (unlikely(rcu_dereference(sk->sk_rx_dst) != dst))
udp6_sk_rx_dst_set(sk, dst);
if (!uh->check && !udp_sk(sk)->no_check6_rx) {
@@ -1070,7 +1072,7 @@ INDIRECT_CALLABLE_SCOPE void udp_v6_early_demux(struct sk_buff *skb)
skb->sk = sk;
skb->destructor = sock_efree;
- dst = READ_ONCE(sk->sk_rx_dst);
+ dst = rcu_dereference(sk->sk_rx_dst);
if (dst)
dst = dst_check(dst, sk->sk_rx_dst_cookie);
@@ -1204,7 +1206,7 @@ static int udp_v6_send_skb(struct sk_buff *skb, struct flowi6 *fl6,
kfree_skb(skb);
return -EINVAL;
}
- if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) {
+ if (datalen > cork->gso_size * UDP_MAX_SEGMENTS) {
kfree_skb(skb);
return -EINVAL;
}
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
index 50a8a65fad23..7720d04ed396 100644
--- a/net/ipv6/udp_offload.c
+++ b/net/ipv6/udp_offload.c
@@ -145,13 +145,11 @@ struct sk_buff *udp6_gro_receive(struct list_head *head, struct sk_buff *skb)
skip:
NAPI_GRO_CB(skb)->is_ipv6 = 1;
- rcu_read_lock();
if (static_branch_unlikely(&udpv6_encap_needed_key))
sk = udp6_gro_lookup_skb(skb, uh->source, uh->dest);
pp = udp_gro_receive(head, skb, uh, sk);
- rcu_read_unlock();
return pp;
flush:
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index af7a4b8b1e9c..fad687ee6dd8 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -74,11 +74,11 @@ static int xfrm6_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
struct rt6_info *rt = (struct rt6_info *)xdst->route;
xdst->u.dst.dev = dev;
- dev_hold(dev);
+ dev_hold_track(dev, &xdst->u.dst.dev_tracker, GFP_ATOMIC);
xdst->u.rt6.rt6i_idev = in6_dev_get(dev);
if (!xdst->u.rt6.rt6i_idev) {
- dev_put(dev);
+ dev_put_track(dev, &xdst->u.dst.dev_tracker);
return -ENODEV;
}
generated by cgit (git 2.34.1) at 2024-06-28 16:25:19 +0000