+++ /dev/null
---- a/include/net/netns/ipv6.h
-+++ b/include/net/netns/ipv6.h
-@@ -54,6 +54,7 @@ struct netns_ipv6 {
- unsigned long ip6_rt_last_gc;
- #ifdef CONFIG_IPV6_MULTIPLE_TABLES
- struct rt6_info *ip6_prohibit_entry;
-+ struct rt6_info *ip6_failed_policy_entry;
- struct rt6_info *ip6_blk_hole_entry;
- struct fib6_table *fib6_local_tbl;
- struct fib_rules_ops *fib6_rules_ops;
---- a/include/uapi/linux/fib_rules.h
-+++ b/include/uapi/linux/fib_rules.h
-@@ -64,6 +64,10 @@ enum {
- FR_ACT_BLACKHOLE, /* Drop without notification */
- FR_ACT_UNREACHABLE, /* Drop with ENETUNREACH */
- FR_ACT_PROHIBIT, /* Drop with EACCES */
-+ FR_ACT_RES9,
-+ FR_ACT_RES10,
-+ FR_ACT_RES11,
-+ FR_ACT_FAILED_POLICY, /* Drop with EPERM */
- __FR_ACT_MAX,
- };
-
---- a/include/uapi/linux/icmpv6.h
-+++ b/include/uapi/linux/icmpv6.h
-@@ -115,6 +115,7 @@ struct icmp6hdr {
- #define ICMPV6_NOT_NEIGHBOUR 2
- #define ICMPV6_ADDR_UNREACH 3
- #define ICMPV6_PORT_UNREACH 4
-+#define ICMPV6_FAILED_POLICY 5
-
- /*
- * Codes for Time Exceeded
---- a/include/uapi/linux/rtnetlink.h
-+++ b/include/uapi/linux/rtnetlink.h
-@@ -203,6 +203,7 @@ enum {
- RTN_THROW, /* Not in this table */
- RTN_NAT, /* Translate this address */
- RTN_XRESOLVE, /* Use external resolver */
-+ RTN_FAILED_POLICY, /* Failed ingress/egress policy */
- __RTN_MAX
- };
-
---- a/net/ipv4/fib_rules.c
-+++ b/net/ipv4/fib_rules.c
-@@ -84,6 +84,10 @@ static int fib4_rule_action(struct fib_r
- err = -EACCES;
- goto errout;
-
-+ case FR_ACT_FAILED_POLICY:
-+ err = -EPERM;
-+ goto errout;
-+
- case FR_ACT_BLACKHOLE:
- default:
- err = -EINVAL;
---- a/net/ipv4/fib_semantics.c
-+++ b/net/ipv4/fib_semantics.c
-@@ -138,6 +138,10 @@ const struct fib_prop fib_props[RTN_MAX
- .error = -EINVAL,
- .scope = RT_SCOPE_NOWHERE,
- },
-+ [RTN_FAILED_POLICY] = {
-+ .error = -EPERM,
-+ .scope = RT_SCOPE_UNIVERSE,
-+ },
- };
-
- static void rt_fibinfo_free(struct rtable __rcu **rtp)
---- a/net/ipv4/fib_trie.c
-+++ b/net/ipv4/fib_trie.c
-@@ -2350,6 +2350,7 @@ static const char *const rtn_type_names[
- [RTN_THROW] = "THROW",
- [RTN_NAT] = "NAT",
- [RTN_XRESOLVE] = "XRESOLVE",
-+ [RTN_FAILED_POLICY] = "FAILED_POLICY",
- };
-
- static inline const char *rtn_type(char *buf, size_t len, unsigned int t)
---- a/net/ipv4/ipmr.c
-+++ b/net/ipv4/ipmr.c
-@@ -181,6 +181,7 @@ static int ipmr_rule_action(struct fib_r
- case FR_ACT_UNREACHABLE:
- return -ENETUNREACH;
- case FR_ACT_PROHIBIT:
-+ case FR_ACT_FAILED_POLICY:
- return -EACCES;
- case FR_ACT_BLACKHOLE:
- default:
---- a/net/ipv6/fib6_rules.c
-+++ b/net/ipv6/fib6_rules.c
-@@ -69,6 +69,9 @@ static int fib6_rule_action(struct fib_r
- case FR_ACT_PROHIBIT:
- rt = net->ipv6.ip6_prohibit_entry;
- goto discard_pkt;
-+ case FR_ACT_FAILED_POLICY:
-+ rt = net->ipv6.ip6_failed_policy_entry;
-+ goto discard_pkt;
- }
-
- table = fib6_get_table(net, rule->table);
---- a/net/ipv6/ip6mr.c
-+++ b/net/ipv6/ip6mr.c
-@@ -166,6 +166,8 @@ static int ip6mr_rule_action(struct fib_
- return -ENETUNREACH;
- case FR_ACT_PROHIBIT:
- return -EACCES;
-+ case FR_ACT_FAILED_POLICY:
-+ return -EPERM;
- case FR_ACT_BLACKHOLE:
- default:
- return -EINVAL;
---- a/net/ipv6/route.c
-+++ b/net/ipv6/route.c
-@@ -258,6 +258,24 @@ static const struct rt6_info ip6_prohibi
- .rt6i_ref = ATOMIC_INIT(1),
- };
-
-+static int ip6_pkt_failed_policy(struct sk_buff *skb);
-+static int ip6_pkt_failed_policy_out(struct sk_buff *skb);
-+
-+static const struct rt6_info ip6_failed_policy_entry_template = {
-+ .dst = {
-+ .__refcnt = ATOMIC_INIT(1),
-+ .__use = 1,
-+ .obsolete = DST_OBSOLETE_FORCE_CHK,
-+ .error = -EPERM,
-+ .input = ip6_pkt_failed_policy,
-+ .output = ip6_pkt_failed_policy_out,
-+ },
-+ .rt6i_flags = (RTF_REJECT | RTF_NONEXTHOP),
-+ .rt6i_protocol = RTPROT_KERNEL,
-+ .rt6i_metric = ~(u32) 0,
-+ .rt6i_ref = ATOMIC_INIT(1),
-+};
-+
- static const struct rt6_info ip6_blk_hole_entry_template = {
- .dst = {
- .__refcnt = ATOMIC_INIT(1),
-@@ -1516,6 +1534,9 @@ int ip6_route_add(struct fib6_config *cf
- case RTN_THROW:
- rt->dst.error = -EAGAIN;
- break;
-+ case RTN_FAILED_POLICY:
-+ rt->dst.error = -EPERM;
-+ break;
- default:
- rt->dst.error = -ENETUNREACH;
- break;
-@@ -2110,6 +2131,17 @@ static int ip6_pkt_prohibit_out(struct s
- return ip6_pkt_drop(skb, ICMPV6_ADM_PROHIBITED, IPSTATS_MIB_OUTNOROUTES);
- }
-
-+static int ip6_pkt_failed_policy(struct sk_buff *skb)
-+{
-+ return ip6_pkt_drop(skb, ICMPV6_FAILED_POLICY, IPSTATS_MIB_INNOROUTES);
-+}
-+
-+static int ip6_pkt_failed_policy_out(struct sk_buff *skb)
-+{
-+ skb->dev = skb_dst(skb)->dev;
-+ return ip6_pkt_drop(skb, ICMPV6_FAILED_POLICY, IPSTATS_MIB_OUTNOROUTES);
-+}
-+
- #endif
-
- /*
-@@ -2321,7 +2353,8 @@ static int rtm_to_fib6_config(struct sk_
- if (rtm->rtm_type == RTN_UNREACHABLE ||
- rtm->rtm_type == RTN_BLACKHOLE ||
- rtm->rtm_type == RTN_PROHIBIT ||
-- rtm->rtm_type == RTN_THROW)
-+ rtm->rtm_type == RTN_THROW ||
-+ rtm->rtm_type == RTN_FAILED_POLICY)
- cfg->fc_flags |= RTF_REJECT;
-
- if (rtm->rtm_type == RTN_LOCAL)
-@@ -2524,6 +2557,9 @@ static int rt6_fill_node(struct net *net
- case -EACCES:
- rtm->rtm_type = RTN_PROHIBIT;
- break;
-+ case -EPERM:
-+ rtm->rtm_type = RTN_FAILED_POLICY;
-+ break;
- case -EAGAIN:
- rtm->rtm_type = RTN_THROW;
- break;
-@@ -2775,6 +2811,8 @@ static int ip6_route_dev_notify(struct n
- #ifdef CONFIG_IPV6_MULTIPLE_TABLES
- net->ipv6.ip6_prohibit_entry->dst.dev = dev;
- net->ipv6.ip6_prohibit_entry->rt6i_idev = in6_dev_get(dev);
-+ net->ipv6.ip6_failed_policy_entry->dst.dev = dev;
-+ net->ipv6.ip6_failed_policy_entry->rt6i_idev = in6_dev_get(dev);
- net->ipv6.ip6_blk_hole_entry->dst.dev = dev;
- net->ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(dev);
- #endif
-@@ -3037,6 +3075,17 @@ static int __net_init ip6_route_net_init
- net->ipv6.ip6_blk_hole_entry->dst.ops = &net->ipv6.ip6_dst_ops;
- dst_init_metrics(&net->ipv6.ip6_blk_hole_entry->dst,
- ip6_template_metrics, true);
-+
-+ net->ipv6.ip6_failed_policy_entry =
-+ kmemdup(&ip6_failed_policy_entry_template,
-+ sizeof(*net->ipv6.ip6_failed_policy_entry), GFP_KERNEL);
-+ if (!net->ipv6.ip6_failed_policy_entry)
-+ goto out_ip6_blk_hole_entry;
-+ net->ipv6.ip6_failed_policy_entry->dst.path =
-+ (struct dst_entry *)net->ipv6.ip6_failed_policy_entry;
-+ net->ipv6.ip6_failed_policy_entry->dst.ops = &net->ipv6.ip6_dst_ops;
-+ dst_init_metrics(&net->ipv6.ip6_failed_policy_entry->dst,
-+ ip6_template_metrics, true);
- #endif
-
- net->ipv6.sysctl.flush_delay = 0;
-@@ -3055,6 +3104,8 @@ out:
- return ret;
-
- #ifdef CONFIG_IPV6_MULTIPLE_TABLES
-+out_ip6_blk_hole_entry:
-+ kfree(net->ipv6.ip6_blk_hole_entry);
- out_ip6_prohibit_entry:
- kfree(net->ipv6.ip6_prohibit_entry);
- out_ip6_null_entry:
-@@ -3072,6 +3123,7 @@ static void __net_exit ip6_route_net_exi
- #ifdef CONFIG_IPV6_MULTIPLE_TABLES
- kfree(net->ipv6.ip6_prohibit_entry);
- kfree(net->ipv6.ip6_blk_hole_entry);
-+ kfree(net->ipv6.ip6_failed_policy_entry);
- #endif
- dst_entries_destroy(&net->ipv6.ip6_dst_ops);
- }
-@@ -3168,6 +3220,9 @@ int __init ip6_route_init(void)
- init_net.ipv6.ip6_prohibit_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
- init_net.ipv6.ip6_blk_hole_entry->dst.dev = init_net.loopback_dev;
- init_net.ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
-+ init_net.ipv6.ip6_failed_policy_entry->dst.dev = init_net.loopback_dev;
-+ init_net.ipv6.ip6_failed_policy_entry->rt6i_idev =
-+ in6_dev_get(init_net.loopback_dev);
- #endif
- ret = fib6_init();
- if (ret)
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