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-rw-r--r--include/net/netfilter/nf_conntrack_core.h6
-rw-r--r--include/net/netfilter/nf_conntrack_l3proto.h8
-rw-r--r--net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c47
-rw-r--r--net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c48
-rw-r--r--net/ipv6/netfilter/nf_defrag_ipv6_hooks.c1
-rw-r--r--net/netfilter/nf_conntrack_expect.c1
-rw-r--r--net/netfilter/nf_conntrack_helper.c1
-rw-r--r--net/netfilter/nf_conntrack_netlink.c96
-rw-r--r--net/netfilter/nf_conntrack_proto.c5
-rw-r--r--net/netfilter/nf_conntrack_standalone.c14
-rw-r--r--net/netfilter/nfnetlink_cttimeout.c1
11 files changed, 79 insertions, 149 deletions
diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h
index 90df45022c51..d454a53ba646 100644
--- a/include/net/netfilter/nf_conntrack_core.h
+++ b/include/net/netfilter/nf_conntrack_core.h
@@ -68,10 +68,8 @@ static inline int nf_conntrack_confirm(struct sk_buff *skb)
return ret;
}
-void
-print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_l3proto *l3proto,
- const struct nf_conntrack_l4proto *proto);
+void print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple,
+ const struct nf_conntrack_l4proto *proto);
#define CONNTRACK_LOCKS 1024
diff --git a/include/net/netfilter/nf_conntrack_l3proto.h b/include/net/netfilter/nf_conntrack_l3proto.h
index d5808f3e2715..d07b5216a925 100644
--- a/include/net/netfilter/nf_conntrack_l3proto.h
+++ b/include/net/netfilter/nf_conntrack_l3proto.h
@@ -46,14 +46,6 @@ struct nf_conntrack_l3proto {
int (*get_l4proto)(const struct sk_buff *skb, unsigned int nhoff,
unsigned int *dataoff, u_int8_t *protonum);
-#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
- int (*tuple_to_nlattr)(struct sk_buff *skb,
- const struct nf_conntrack_tuple *t);
- int (*nlattr_to_tuple)(struct nlattr *tb[],
- struct nf_conntrack_tuple *t);
- const struct nla_policy *nla_policy;
-#endif
-
/* Called when netns wants to use connection tracking */
int (*net_ns_get)(struct net *);
void (*net_ns_put)(struct net *);
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index 9db988f9a4d7..98ed12858c52 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -274,41 +274,6 @@ getorigdst(struct sock *sk, int optval, void __user *user, int *len)
return -ENOENT;
}
-#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
-
-#include <linux/netfilter/nfnetlink.h>
-#include <linux/netfilter/nfnetlink_conntrack.h>
-
-static int ipv4_tuple_to_nlattr(struct sk_buff *skb,
- const struct nf_conntrack_tuple *tuple)
-{
- if (nla_put_in_addr(skb, CTA_IP_V4_SRC, tuple->src.u3.ip) ||
- nla_put_in_addr(skb, CTA_IP_V4_DST, tuple->dst.u3.ip))
- goto nla_put_failure;
- return 0;
-
-nla_put_failure:
- return -1;
-}
-
-static const struct nla_policy ipv4_nla_policy[CTA_IP_MAX+1] = {
- [CTA_IP_V4_SRC] = { .type = NLA_U32 },
- [CTA_IP_V4_DST] = { .type = NLA_U32 },
-};
-
-static int ipv4_nlattr_to_tuple(struct nlattr *tb[],
- struct nf_conntrack_tuple *t)
-{
- if (!tb[CTA_IP_V4_SRC] || !tb[CTA_IP_V4_DST])
- return -EINVAL;
-
- t->src.u3.ip = nla_get_in_addr(tb[CTA_IP_V4_SRC]);
- t->dst.u3.ip = nla_get_in_addr(tb[CTA_IP_V4_DST]);
-
- return 0;
-}
-#endif
-
static struct nf_sockopt_ops so_getorigdst = {
.pf = PF_INET,
.get_optmin = SO_ORIGINAL_DST,
@@ -360,13 +325,6 @@ const struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv4 = {
.pkt_to_tuple = ipv4_pkt_to_tuple,
.invert_tuple = ipv4_invert_tuple,
.get_l4proto = ipv4_get_l4proto,
-#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
- .tuple_to_nlattr = ipv4_tuple_to_nlattr,
- .nlattr_to_tuple = ipv4_nlattr_to_tuple,
- .nla_policy = ipv4_nla_policy,
- .nla_size = NLA_ALIGN(NLA_HDRLEN + sizeof(u32)) + /* CTA_IP_V4_SRC */
- NLA_ALIGN(NLA_HDRLEN + sizeof(u32)), /* CTA_IP_V4_DST */
-#endif
.net_ns_get = ipv4_hooks_register,
.net_ns_put = ipv4_hooks_unregister,
.me = THIS_MODULE,
@@ -419,11 +377,6 @@ static int __init nf_conntrack_l3proto_ipv4_init(void)
need_conntrack();
-#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
- if (WARN_ON(nla_policy_len(ipv4_nla_policy, CTA_IP_MAX + 1) !=
- nf_conntrack_l3proto_ipv4.nla_size))
- return -EINVAL;
-#endif
ret = nf_register_sockopt(&so_getorigdst);
if (ret < 0) {
pr_err("Unable to register netfilter socket option\n");
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index 663827ee3cf8..13a660ae5799 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -269,41 +269,6 @@ ipv6_getorigdst(struct sock *sk, int optval, void __user *user, int *len)
return copy_to_user(user, &sin6, sizeof(sin6)) ? -EFAULT : 0;
}
-#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
-
-#include <linux/netfilter/nfnetlink.h>
-#include <linux/netfilter/nfnetlink_conntrack.h>
-
-static int ipv6_tuple_to_nlattr(struct sk_buff *skb,
- const struct nf_conntrack_tuple *tuple)
-{
- if (nla_put_in6_addr(skb, CTA_IP_V6_SRC, &tuple->src.u3.in6) ||
- nla_put_in6_addr(skb, CTA_IP_V6_DST, &tuple->dst.u3.in6))
- goto nla_put_failure;
- return 0;
-
-nla_put_failure:
- return -1;
-}
-
-static const struct nla_policy ipv6_nla_policy[CTA_IP_MAX+1] = {
- [CTA_IP_V6_SRC] = { .len = sizeof(u_int32_t)*4 },
- [CTA_IP_V6_DST] = { .len = sizeof(u_int32_t)*4 },
-};
-
-static int ipv6_nlattr_to_tuple(struct nlattr *tb[],
- struct nf_conntrack_tuple *t)
-{
- if (!tb[CTA_IP_V6_SRC] || !tb[CTA_IP_V6_DST])
- return -EINVAL;
-
- t->src.u3.in6 = nla_get_in6_addr(tb[CTA_IP_V6_SRC]);
- t->dst.u3.in6 = nla_get_in6_addr(tb[CTA_IP_V6_DST]);
-
- return 0;
-}
-#endif
-
static int ipv6_hooks_register(struct net *net)
{
struct conntrack6_net *cnet = net_generic(net, conntrack6_net_id);
@@ -345,13 +310,6 @@ const struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv6 = {
.pkt_to_tuple = ipv6_pkt_to_tuple,
.invert_tuple = ipv6_invert_tuple,
.get_l4proto = ipv6_get_l4proto,
-#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
- .tuple_to_nlattr = ipv6_tuple_to_nlattr,
- .nlattr_to_tuple = ipv6_nlattr_to_tuple,
- .nla_policy = ipv6_nla_policy,
- .nla_size = NLA_ALIGN(NLA_HDRLEN + sizeof(u32[4])) +
- NLA_ALIGN(NLA_HDRLEN + sizeof(u32[4])),
-#endif
.net_ns_get = ipv6_hooks_register,
.net_ns_put = ipv6_hooks_unregister,
.me = THIS_MODULE,
@@ -409,12 +367,6 @@ static int __init nf_conntrack_l3proto_ipv6_init(void)
need_conntrack();
-#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
- if (WARN_ON(nla_policy_len(ipv6_nla_policy, CTA_IP_MAX + 1) !=
- nf_conntrack_l3proto_ipv6.nla_size))
- return -EINVAL;
-#endif
-
ret = nf_register_sockopt(&so_getorigdst6);
if (ret < 0) {
pr_err("Unable to register netfilter socket option\n");
diff --git a/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c b/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
index c87b48359e8f..e631be25337e 100644
--- a/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
+++ b/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
@@ -23,7 +23,6 @@
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_helper.h>
#include <net/netfilter/nf_conntrack_l4proto.h>
-#include <net/netfilter/nf_conntrack_l3proto.h>
#include <net/netfilter/nf_conntrack_core.h>
#include <net/netfilter/ipv6/nf_conntrack_ipv6.h>
#endif
diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c
index 853b23206bb7..3f586ba23d92 100644
--- a/net/netfilter/nf_conntrack_expect.c
+++ b/net/netfilter/nf_conntrack_expect.c
@@ -610,7 +610,6 @@ static int exp_seq_show(struct seq_file *s, void *v)
expect->tuple.src.l3num,
expect->tuple.dst.protonum);
print_tuple(s, &expect->tuple,
- __nf_ct_l3proto_find(expect->tuple.src.l3num),
__nf_ct_l4proto_find(expect->tuple.src.l3num,
expect->tuple.dst.protonum));
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index a75b11c39312..a55a58c706a9 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -24,7 +24,6 @@
#include <linux/rtnetlink.h>
#include <net/netfilter/nf_conntrack.h>
-#include <net/netfilter/nf_conntrack_l3proto.h>
#include <net/netfilter/nf_conntrack_l4proto.h>
#include <net/netfilter/nf_conntrack_helper.h>
#include <net/netfilter/nf_conntrack_core.h>
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 20a2e37c76d1..40152b9ad772 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -38,7 +38,6 @@
#include <net/netfilter/nf_conntrack_expect.h>
#include <net/netfilter/nf_conntrack_helper.h>
#include <net/netfilter/nf_conntrack_seqadj.h>
-#include <net/netfilter/nf_conntrack_l3proto.h>
#include <net/netfilter/nf_conntrack_l4proto.h>
#include <net/netfilter/nf_conntrack_tuple.h>
#include <net/netfilter/nf_conntrack_acct.h>
@@ -81,9 +80,26 @@ nla_put_failure:
return -1;
}
+static int ipv4_tuple_to_nlattr(struct sk_buff *skb,
+ const struct nf_conntrack_tuple *tuple)
+{
+ if (nla_put_in_addr(skb, CTA_IP_V4_SRC, tuple->src.u3.ip) ||
+ nla_put_in_addr(skb, CTA_IP_V4_DST, tuple->dst.u3.ip))
+ return -EMSGSIZE;
+ return 0;
+}
+
+static int ipv6_tuple_to_nlattr(struct sk_buff *skb,
+ const struct nf_conntrack_tuple *tuple)
+{
+ if (nla_put_in6_addr(skb, CTA_IP_V6_SRC, &tuple->src.u3.in6) ||
+ nla_put_in6_addr(skb, CTA_IP_V6_DST, &tuple->dst.u3.in6))
+ return -EMSGSIZE;
+ return 0;
+}
+
static int ctnetlink_dump_tuples_ip(struct sk_buff *skb,
- const struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_l3proto *l3proto)
+ const struct nf_conntrack_tuple *tuple)
{
int ret = 0;
struct nlattr *nest_parms;
@@ -92,8 +108,14 @@ static int ctnetlink_dump_tuples_ip(struct sk_buff *skb,
if (!nest_parms)
goto nla_put_failure;
- if (likely(l3proto->tuple_to_nlattr))
- ret = l3proto->tuple_to_nlattr(skb, tuple);
+ switch (tuple->src.l3num) {
+ case NFPROTO_IPV4:
+ ret = ipv4_tuple_to_nlattr(skb, tuple);
+ break;
+ case NFPROTO_IPV6:
+ ret = ipv6_tuple_to_nlattr(skb, tuple);
+ break;
+ }
nla_nest_end(skb, nest_parms);
@@ -106,13 +128,11 @@ nla_put_failure:
static int ctnetlink_dump_tuples(struct sk_buff *skb,
const struct nf_conntrack_tuple *tuple)
{
- const struct nf_conntrack_l3proto *l3proto;
const struct nf_conntrack_l4proto *l4proto;
int ret;
rcu_read_lock();
- l3proto = __nf_ct_l3proto_find(tuple->src.l3num);
- ret = ctnetlink_dump_tuples_ip(skb, tuple, l3proto);
+ ret = ctnetlink_dump_tuples_ip(skb, tuple);
if (ret >= 0) {
l4proto = __nf_ct_l4proto_find(tuple->src.l3num,
@@ -556,15 +576,20 @@ nla_put_failure:
return -1;
}
+static const struct nla_policy cta_ip_nla_policy[CTA_IP_MAX + 1] = {
+ [CTA_IP_V4_SRC] = { .type = NLA_U32 },
+ [CTA_IP_V4_DST] = { .type = NLA_U32 },
+ [CTA_IP_V6_SRC] = { .len = sizeof(__be32) * 4 },
+ [CTA_IP_V6_DST] = { .len = sizeof(__be32) * 4 },
+};
+
#if defined(CONFIG_NETFILTER_NETLINK_GLUE_CT) || defined(CONFIG_NF_CONNTRACK_EVENTS)
static size_t ctnetlink_proto_size(const struct nf_conn *ct)
{
- const struct nf_conntrack_l3proto *l3proto;
const struct nf_conntrack_l4proto *l4proto;
size_t len, len4 = 0;
- l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct));
- len = l3proto->nla_size;
+ len = nla_policy_len(cta_ip_nla_policy, CTA_IP_MAX + 1);
len *= 3u; /* ORIG, REPLY, MASTER */
l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
@@ -936,29 +961,54 @@ out:
return skb->len;
}
+static int ipv4_nlattr_to_tuple(struct nlattr *tb[],
+ struct nf_conntrack_tuple *t)
+{
+ if (!tb[CTA_IP_V4_SRC] || !tb[CTA_IP_V4_DST])
+ return -EINVAL;
+
+ t->src.u3.ip = nla_get_in_addr(tb[CTA_IP_V4_SRC]);
+ t->dst.u3.ip = nla_get_in_addr(tb[CTA_IP_V4_DST]);
+
+ return 0;
+}
+
+static int ipv6_nlattr_to_tuple(struct nlattr *tb[],
+ struct nf_conntrack_tuple *t)
+{
+ if (!tb[CTA_IP_V6_SRC] || !tb[CTA_IP_V6_DST])
+ return -EINVAL;
+
+ t->src.u3.in6 = nla_get_in6_addr(tb[CTA_IP_V6_SRC]);
+ t->dst.u3.in6 = nla_get_in6_addr(tb[CTA_IP_V6_DST]);
+
+ return 0;
+}
+
static int ctnetlink_parse_tuple_ip(struct nlattr *attr,
struct nf_conntrack_tuple *tuple)
{
struct nlattr *tb[CTA_IP_MAX+1];
- struct nf_conntrack_l3proto *l3proto;
int ret = 0;
ret = nla_parse_nested(tb, CTA_IP_MAX, attr, NULL, NULL);
if (ret < 0)
return ret;
- rcu_read_lock();
- l3proto = __nf_ct_l3proto_find(tuple->src.l3num);
+ ret = nla_validate_nested(attr, CTA_IP_MAX,
+ cta_ip_nla_policy, NULL);
+ if (ret)
+ return ret;
- if (likely(l3proto->nlattr_to_tuple)) {
- ret = nla_validate_nested(attr, CTA_IP_MAX,
- l3proto->nla_policy, NULL);
- if (ret == 0)
- ret = l3proto->nlattr_to_tuple(tb, tuple);
+ switch (tuple->src.l3num) {
+ case NFPROTO_IPV4:
+ ret = ipv4_nlattr_to_tuple(tb, tuple);
+ break;
+ case NFPROTO_IPV6:
+ ret = ipv6_nlattr_to_tuple(tb, tuple);
+ break;
}
- rcu_read_unlock();
-
return ret;
}
@@ -2581,7 +2631,6 @@ static int ctnetlink_exp_dump_mask(struct sk_buff *skb,
const struct nf_conntrack_tuple *tuple,
const struct nf_conntrack_tuple_mask *mask)
{
- const struct nf_conntrack_l3proto *l3proto;
const struct nf_conntrack_l4proto *l4proto;
struct nf_conntrack_tuple m;
struct nlattr *nest_parms;
@@ -2597,8 +2646,7 @@ static int ctnetlink_exp_dump_mask(struct sk_buff *skb,
goto nla_put_failure;
rcu_read_lock();
- l3proto = __nf_ct_l3proto_find(tuple->src.l3num);
- ret = ctnetlink_dump_tuples_ip(skb, &m, l3proto);
+ ret = ctnetlink_dump_tuples_ip(skb, &m);
if (ret >= 0) {
l4proto = __nf_ct_l4proto_find(tuple->src.l3num,
tuple->dst.protonum);
diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
index d88841fbc560..859cb303bb91 100644
--- a/net/netfilter/nf_conntrack_proto.c
+++ b/net/netfilter/nf_conntrack_proto.c
@@ -294,10 +294,7 @@ int nf_ct_l3proto_register(const struct nf_conntrack_l3proto *proto)
if (proto->l3proto >= NFPROTO_NUMPROTO)
return -EBUSY;
-#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
- if (proto->tuple_to_nlattr && proto->nla_size == 0)
- return -EINVAL;
-#endif
+
mutex_lock(&nf_ct_proto_mutex);
old = rcu_dereference_protected(nf_ct_l3protos[proto->l3proto],
lockdep_is_held(&nf_ct_proto_mutex));
diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index b642c0b2495c..47b80fd0d2c3 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -24,7 +24,6 @@
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_core.h>
-#include <net/netfilter/nf_conntrack_l3proto.h>
#include <net/netfilter/nf_conntrack_l4proto.h>
#include <net/netfilter/nf_conntrack_expect.h>
#include <net/netfilter/nf_conntrack_helper.h>
@@ -38,10 +37,9 @@ MODULE_LICENSE("GPL");
#ifdef CONFIG_NF_CONNTRACK_PROCFS
void
print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_l3proto *l3proto,
const struct nf_conntrack_l4proto *l4proto)
{
- switch (l3proto->l3proto) {
+ switch (tuple->src.l3num) {
case NFPROTO_IPV4:
seq_printf(s, "src=%pI4 dst=%pI4 ",
&tuple->src.u3.ip, &tuple->dst.u3.ip);
@@ -282,7 +280,6 @@ static int ct_seq_show(struct seq_file *s, void *v)
{
struct nf_conntrack_tuple_hash *hash = v;
struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
- const struct nf_conntrack_l3proto *l3proto;
const struct nf_conntrack_l4proto *l4proto;
struct net *net = seq_file_net(s);
int ret = 0;
@@ -303,14 +300,12 @@ static int ct_seq_show(struct seq_file *s, void *v)
if (!net_eq(nf_ct_net(ct), net))
goto release;
- l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct));
- WARN_ON(!l3proto);
l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
WARN_ON(!l4proto);
ret = -ENOSPC;
seq_printf(s, "%-8s %u %-8s %u ",
- l3proto_name(l3proto->l3proto), nf_ct_l3num(ct),
+ l3proto_name(nf_ct_l3num(ct)), nf_ct_l3num(ct),
l4proto_name(l4proto->l4proto), nf_ct_protonum(ct));
if (!test_bit(IPS_OFFLOAD_BIT, &ct->status))
@@ -320,7 +315,7 @@ static int ct_seq_show(struct seq_file *s, void *v)
l4proto->print_conntrack(s, ct);
print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
- l3proto, l4proto);
+ l4proto);
ct_show_zone(s, ct, NF_CT_ZONE_DIR_ORIG);
@@ -333,8 +328,7 @@ static int ct_seq_show(struct seq_file *s, void *v)
if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status)))
seq_puts(s, "[UNREPLIED] ");
- print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple,
- l3proto, l4proto);
+ print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple, l4proto);
ct_show_zone(s, ct, NF_CT_ZONE_DIR_REPL);
diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c
index 9ee5fa551fa6..9da4b8462004 100644
--- a/net/netfilter/nfnetlink_cttimeout.c
+++ b/net/netfilter/nfnetlink_cttimeout.c
@@ -26,7 +26,6 @@
#include <net/sock.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_core.h>
-#include <net/netfilter/nf_conntrack_l3proto.h>
#include <net/netfilter/nf_conntrack_l4proto.h>
#include <net/netfilter/nf_conntrack_tuple.h>
#include <net/netfilter/nf_conntrack_timeout.h>