mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 15:02:32 +00:00
232 lines
7.0 KiB
Diff
232 lines
7.0 KiB
Diff
--- a/include/net/netns/ipv6.h
|
|
+++ b/include/net/netns/ipv6.h
|
|
@@ -55,6 +55,7 @@ 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/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
|
|
@@ -2331,6 +2331,7 @@ 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
|
|
@@ -73,6 +73,9 @@ static int fib6_rule_action(struct fib_r
|
|
err = -EACCES;
|
|
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
|
|
@@ -252,6 +252,24 @@ 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),
|
|
@@ -1583,6 +1601,9 @@ 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;
|
|
@@ -2162,6 +2183,17 @@ 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_POLICY_FAIL, 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_POLICY_FAIL, IPSTATS_MIB_OUTNOROUTES);
|
|
+}
|
|
+
|
|
#endif
|
|
|
|
/*
|
|
@@ -2368,7 +2400,8 @@ 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)
|
|
@@ -2570,6 +2603,9 @@ 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;
|
|
@@ -2820,6 +2856,8 @@ 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
|
|
@@ -3080,6 +3118,17 @@ 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;
|
|
@@ -3098,6 +3147,8 @@ 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:
|
|
@@ -3115,6 +3166,7 @@ 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);
|
|
}
|
|
@@ -3211,6 +3263,9 @@ 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)
|