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[NETFILTER]: nf_conntrack: rename struct nf_conntrack_protocol
Rename 'struct nf_conntrack_protocol' to 'struct nf_conntrack_l4proto' in order to help distinguish it from 'struct nf_conntrack_l3proto'. It gets rather confusing with 'nf_conntrack_protocol'. Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Martin Josefsson
David S. Miller
parent
e2b7606cdb
commit
605dcad6c8
@ -14,7 +14,7 @@
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#include <linux/netfilter.h>
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#include <net/netfilter/nf_conntrack_l3proto.h>
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#include <net/netfilter/nf_conntrack_protocol.h>
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#include <net/netfilter/nf_conntrack_l4proto.h>
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#include <net/netfilter/nf_conntrack_ecache.h>
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/* This header is used to share core functionality between the
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@ -32,7 +32,7 @@ extern struct nf_conntrack_l3proto *nf_ct_find_l3proto(u_int16_t pf);
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/* Like above, but you already have conntrack read lock. */
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extern struct nf_conntrack_l3proto *__nf_ct_find_l3proto(u_int16_t l3proto);
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struct nf_conntrack_protocol;
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struct nf_conntrack_l4proto;
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extern int
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nf_ct_get_tuple(const struct sk_buff *skb,
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@ -42,13 +42,13 @@ nf_ct_get_tuple(const struct sk_buff *skb,
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u_int8_t protonum,
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struct nf_conntrack_tuple *tuple,
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const struct nf_conntrack_l3proto *l3proto,
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const struct nf_conntrack_protocol *protocol);
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const struct nf_conntrack_l4proto *l4proto);
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extern int
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nf_ct_invert_tuple(struct nf_conntrack_tuple *inverse,
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const struct nf_conntrack_tuple *orig,
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const struct nf_conntrack_l3proto *l3proto,
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const struct nf_conntrack_protocol *protocol);
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const struct nf_conntrack_l4proto *l4proto);
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/* Find a connection corresponding to a tuple. */
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extern struct nf_conntrack_tuple_hash *
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@ -76,7 +76,7 @@ extern void __nf_conntrack_attach(struct sk_buff *nskb, struct sk_buff *skb);
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int
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print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple,
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struct nf_conntrack_l3proto *l3proto,
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struct nf_conntrack_protocol *proto);
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struct nf_conntrack_l4proto *proto);
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extern struct list_head *nf_conntrack_hash;
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extern struct list_head nf_conntrack_expect_list;
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@ -96,13 +96,13 @@ extern void nf_ct_l3proto_put(struct nf_conntrack_l3proto *p);
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/* Existing built-in protocols */
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extern struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv4;
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extern struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv6;
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extern struct nf_conntrack_l3proto nf_conntrack_generic_l3proto;
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extern struct nf_conntrack_l3proto nf_conntrack_l3proto_generic;
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static inline struct nf_conntrack_l3proto *
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__nf_ct_l3proto_find(u_int16_t l3proto)
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{
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if (unlikely(l3proto >= AF_MAX))
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return &nf_conntrack_generic_l3proto;
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return &nf_conntrack_l3proto_generic;
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return nf_ct_l3protos[l3proto];
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}
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@ -1,5 +1,5 @@
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/*
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* Header for use in defining a given protocol for connection tracking.
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* Header for use in defining a given L4 protocol for connection tracking.
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*
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* 16 Dec 2003: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
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* - generalized L3 protocol dependent part.
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@ -7,14 +7,14 @@
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* Derived from include/linux/netfiter_ipv4/ip_conntrack_protcol.h
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*/
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#ifndef _NF_CONNTRACK_PROTOCOL_H
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#define _NF_CONNTRACK_PROTOCOL_H
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#ifndef _NF_CONNTRACK_L4PROTO_H
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#define _NF_CONNTRACK_L4PROTO_H
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#include <net/netfilter/nf_conntrack.h>
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struct seq_file;
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struct nfattr;
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struct nf_conntrack_protocol
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struct nf_conntrack_l4proto
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{
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/* Next pointer. */
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struct list_head list;
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@ -22,8 +22,8 @@ struct nf_conntrack_protocol
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/* L3 Protocol number. */
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u_int16_t l3proto;
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/* Protocol number. */
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u_int8_t proto;
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/* L4 Protocol number. */
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u_int8_t l4proto;
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/* Protocol name */
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const char *name;
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@ -84,25 +84,25 @@ struct nf_conntrack_protocol
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};
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/* Existing built-in protocols */
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extern struct nf_conntrack_protocol nf_conntrack_protocol_tcp6;
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extern struct nf_conntrack_protocol nf_conntrack_protocol_udp4;
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extern struct nf_conntrack_protocol nf_conntrack_protocol_udp6;
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extern struct nf_conntrack_protocol nf_conntrack_generic_protocol;
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extern struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6;
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extern struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4;
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extern struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6;
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extern struct nf_conntrack_l4proto nf_conntrack_l4proto_generic;
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#define MAX_NF_CT_PROTO 256
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extern struct nf_conntrack_protocol **nf_ct_protos[PF_MAX];
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extern struct nf_conntrack_l4proto **nf_ct_protos[PF_MAX];
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extern struct nf_conntrack_protocol *
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__nf_ct_proto_find(u_int16_t l3proto, u_int8_t protocol);
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extern struct nf_conntrack_l4proto *
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__nf_ct_l4proto_find(u_int16_t l3proto, u_int8_t l4proto);
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extern struct nf_conntrack_protocol *
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nf_ct_proto_find_get(u_int16_t l3proto, u_int8_t protocol);
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extern struct nf_conntrack_l4proto *
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nf_ct_l4proto_find_get(u_int16_t l3proto, u_int8_t protocol);
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extern void nf_ct_proto_put(struct nf_conntrack_protocol *p);
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extern void nf_ct_l4proto_put(struct nf_conntrack_l4proto *p);
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/* Protocol registration. */
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extern int nf_conntrack_protocol_register(struct nf_conntrack_protocol *proto);
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extern void nf_conntrack_protocol_unregister(struct nf_conntrack_protocol *proto);
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extern int nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *proto);
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extern void nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *proto);
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/* Generic netlink helpers */
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extern int nf_ct_port_tuple_to_nfattr(struct sk_buff *skb,
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@ -27,7 +27,7 @@
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#include <linux/netfilter_ipv4.h>
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#include <net/netfilter/nf_conntrack.h>
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#include <net/netfilter/nf_conntrack_helper.h>
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#include <net/netfilter/nf_conntrack_protocol.h>
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#include <net/netfilter/nf_conntrack_l4proto.h>
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#include <net/netfilter/nf_conntrack_l3proto.h>
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#include <net/netfilter/nf_conntrack_core.h>
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#include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
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@ -429,9 +429,9 @@ struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv4 = {
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.me = THIS_MODULE,
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};
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extern struct nf_conntrack_protocol nf_conntrack_protocol_tcp4;
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extern struct nf_conntrack_protocol nf_conntrack_protocol_udp4;
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extern struct nf_conntrack_protocol nf_conntrack_protocol_icmp;
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extern struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4;
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extern struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4;
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extern struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp;
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MODULE_ALIAS("nf_conntrack-" __stringify(AF_INET));
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MODULE_LICENSE("GPL");
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@ -448,19 +448,19 @@ static int __init nf_conntrack_l3proto_ipv4_init(void)
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return ret;
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}
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ret = nf_conntrack_protocol_register(&nf_conntrack_protocol_tcp4);
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ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_tcp4);
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if (ret < 0) {
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printk("nf_conntrack_ipv4: can't register tcp.\n");
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goto cleanup_sockopt;
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}
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ret = nf_conntrack_protocol_register(&nf_conntrack_protocol_udp4);
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ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_udp4);
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if (ret < 0) {
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printk("nf_conntrack_ipv4: can't register udp.\n");
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goto cleanup_tcp;
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}
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ret = nf_conntrack_protocol_register(&nf_conntrack_protocol_icmp);
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ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_icmp);
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if (ret < 0) {
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printk("nf_conntrack_ipv4: can't register icmp.\n");
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goto cleanup_udp;
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@ -495,11 +495,11 @@ static int __init nf_conntrack_l3proto_ipv4_init(void)
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cleanup_ipv4:
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nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv4);
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cleanup_icmp:
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nf_conntrack_protocol_unregister(&nf_conntrack_protocol_icmp);
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nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_icmp);
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cleanup_udp:
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nf_conntrack_protocol_unregister(&nf_conntrack_protocol_udp4);
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nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_udp4);
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cleanup_tcp:
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nf_conntrack_protocol_unregister(&nf_conntrack_protocol_tcp4);
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nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_tcp4);
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cleanup_sockopt:
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nf_unregister_sockopt(&so_getorigdst);
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return ret;
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@ -513,9 +513,9 @@ static void __exit nf_conntrack_l3proto_ipv4_fini(void)
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#endif
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nf_unregister_hooks(ipv4_conntrack_ops, ARRAY_SIZE(ipv4_conntrack_ops));
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nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv4);
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nf_conntrack_protocol_unregister(&nf_conntrack_protocol_icmp);
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nf_conntrack_protocol_unregister(&nf_conntrack_protocol_udp4);
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nf_conntrack_protocol_unregister(&nf_conntrack_protocol_tcp4);
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nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_icmp);
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nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_udp4);
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nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_tcp4);
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nf_unregister_sockopt(&so_getorigdst);
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}
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@ -22,7 +22,7 @@
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#include <net/checksum.h>
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#include <linux/netfilter_ipv4.h>
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#include <net/netfilter/nf_conntrack_tuple.h>
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#include <net/netfilter/nf_conntrack_protocol.h>
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#include <net/netfilter/nf_conntrack_l4proto.h>
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#include <net/netfilter/nf_conntrack_core.h>
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unsigned long nf_ct_icmp_timeout __read_mostly = 30*HZ;
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@ -152,7 +152,7 @@ icmp_error_message(struct sk_buff *skb,
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struct icmphdr icmp;
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struct iphdr ip;
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} _in, *inside;
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struct nf_conntrack_protocol *innerproto;
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struct nf_conntrack_l4proto *innerproto;
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struct nf_conntrack_tuple_hash *h;
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int dataoff;
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@ -170,7 +170,7 @@ icmp_error_message(struct sk_buff *skb,
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return -NF_ACCEPT;
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}
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innerproto = __nf_ct_proto_find(PF_INET, inside->ip.protocol);
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innerproto = __nf_ct_l4proto_find(PF_INET, inside->ip.protocol);
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dataoff = skb->nh.iph->ihl*4 + sizeof(inside->icmp);
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/* Are they talking about one of our connections? */
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if (!nf_ct_get_tuple(skb, dataoff, dataoff + inside->ip.ihl*4, PF_INET,
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@ -321,11 +321,11 @@ static int icmp_nfattr_to_tuple(struct nfattr *tb[],
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}
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#endif
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struct nf_conntrack_protocol nf_conntrack_protocol_icmp =
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struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp =
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{
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.list = { NULL, NULL },
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.l3proto = PF_INET,
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.proto = IPPROTO_ICMP,
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.l4proto = IPPROTO_ICMP,
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.name = "icmp",
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.pkt_to_tuple = icmp_pkt_to_tuple,
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.invert_tuple = icmp_invert_tuple,
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@ -343,4 +343,4 @@ struct nf_conntrack_protocol nf_conntrack_protocol_icmp =
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#endif
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};
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EXPORT_SYMBOL(nf_conntrack_protocol_icmp);
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EXPORT_SYMBOL(nf_conntrack_l4proto_icmp);
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@ -33,7 +33,7 @@
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#include <linux/netfilter_ipv6.h>
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#include <net/netfilter/nf_conntrack.h>
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#include <net/netfilter/nf_conntrack_helper.h>
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#include <net/netfilter/nf_conntrack_protocol.h>
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#include <net/netfilter/nf_conntrack_l4proto.h>
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#include <net/netfilter/nf_conntrack_l3proto.h>
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#include <net/netfilter/nf_conntrack_core.h>
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@ -458,9 +458,9 @@ struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv6 = {
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.me = THIS_MODULE,
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};
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extern struct nf_conntrack_protocol nf_conntrack_protocol_tcp6;
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extern struct nf_conntrack_protocol nf_conntrack_protocol_udp6;
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extern struct nf_conntrack_protocol nf_conntrack_protocol_icmpv6;
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extern struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6;
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extern struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6;
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extern struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6;
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extern int nf_ct_frag6_init(void);
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extern void nf_ct_frag6_cleanup(void);
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@ -479,19 +479,19 @@ static int __init nf_conntrack_l3proto_ipv6_init(void)
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printk("nf_conntrack_ipv6: can't initialize frag6.\n");
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return ret;
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}
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ret = nf_conntrack_protocol_register(&nf_conntrack_protocol_tcp6);
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ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_tcp6);
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if (ret < 0) {
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printk("nf_conntrack_ipv6: can't register tcp.\n");
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goto cleanup_frag6;
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}
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ret = nf_conntrack_protocol_register(&nf_conntrack_protocol_udp6);
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ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_udp6);
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if (ret < 0) {
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printk("nf_conntrack_ipv6: can't register udp.\n");
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goto cleanup_tcp;
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}
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ret = nf_conntrack_protocol_register(&nf_conntrack_protocol_icmpv6);
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ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_icmpv6);
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if (ret < 0) {
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printk("nf_conntrack_ipv6: can't register icmpv6.\n");
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goto cleanup_udp;
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@ -527,11 +527,11 @@ static int __init nf_conntrack_l3proto_ipv6_init(void)
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cleanup_ipv6:
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nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv6);
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cleanup_icmpv6:
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nf_conntrack_protocol_unregister(&nf_conntrack_protocol_icmpv6);
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nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_icmpv6);
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cleanup_udp:
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nf_conntrack_protocol_unregister(&nf_conntrack_protocol_udp6);
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nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_udp6);
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cleanup_tcp:
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nf_conntrack_protocol_unregister(&nf_conntrack_protocol_tcp6);
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nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_tcp6);
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cleanup_frag6:
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nf_ct_frag6_cleanup();
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return ret;
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@ -545,9 +545,9 @@ static void __exit nf_conntrack_l3proto_ipv6_fini(void)
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#endif
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nf_unregister_hooks(ipv6_conntrack_ops, ARRAY_SIZE(ipv6_conntrack_ops));
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nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv6);
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nf_conntrack_protocol_unregister(&nf_conntrack_protocol_icmpv6);
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nf_conntrack_protocol_unregister(&nf_conntrack_protocol_udp6);
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nf_conntrack_protocol_unregister(&nf_conntrack_protocol_tcp6);
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nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_icmpv6);
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nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_udp6);
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nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_tcp6);
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nf_ct_frag6_cleanup();
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}
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@ -29,7 +29,7 @@
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#include <linux/seq_file.h>
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#include <linux/netfilter_ipv6.h>
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#include <net/netfilter/nf_conntrack_tuple.h>
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#include <net/netfilter/nf_conntrack_protocol.h>
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#include <net/netfilter/nf_conntrack_l4proto.h>
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#include <net/netfilter/nf_conntrack_core.h>
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#include <net/netfilter/ipv6/nf_conntrack_icmpv6.h>
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@ -155,7 +155,7 @@ icmpv6_error_message(struct sk_buff *skb,
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struct nf_conntrack_tuple_hash *h;
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struct icmp6hdr _hdr, *hp;
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unsigned int inip6off;
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struct nf_conntrack_protocol *inproto;
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struct nf_conntrack_l4proto *inproto;
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u_int8_t inprotonum;
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unsigned int inprotoff;
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@ -185,7 +185,7 @@ icmpv6_error_message(struct sk_buff *skb,
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return -NF_ACCEPT;
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}
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inproto = __nf_ct_proto_find(PF_INET6, inprotonum);
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inproto = __nf_ct_l4proto_find(PF_INET6, inprotonum);
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/* Are they talking about one of our connections? */
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if (!nf_ct_get_tuple(skb, inip6off, inprotoff, PF_INET6, inprotonum,
|
||||
@ -301,10 +301,10 @@ static int icmpv6_nfattr_to_tuple(struct nfattr *tb[],
|
||||
}
|
||||
#endif
|
||||
|
||||
struct nf_conntrack_protocol nf_conntrack_protocol_icmpv6 =
|
||||
struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 =
|
||||
{
|
||||
.l3proto = PF_INET6,
|
||||
.proto = IPPROTO_ICMPV6,
|
||||
.l4proto = IPPROTO_ICMPV6,
|
||||
.name = "icmpv6",
|
||||
.pkt_to_tuple = icmpv6_pkt_to_tuple,
|
||||
.invert_tuple = icmpv6_invert_tuple,
|
||||
@ -320,4 +320,4 @@ struct nf_conntrack_protocol nf_conntrack_protocol_icmpv6 =
|
||||
#endif
|
||||
};
|
||||
|
||||
EXPORT_SYMBOL(nf_conntrack_protocol_icmpv6);
|
||||
EXPORT_SYMBOL(nf_conntrack_l4proto_icmpv6);
|
||||
|
||||
@ -54,7 +54,7 @@
|
||||
|
||||
#include <net/netfilter/nf_conntrack.h>
|
||||
#include <net/netfilter/nf_conntrack_l3proto.h>
|
||||
#include <net/netfilter/nf_conntrack_protocol.h>
|
||||
#include <net/netfilter/nf_conntrack_l4proto.h>
|
||||
#include <net/netfilter/nf_conntrack_expect.h>
|
||||
#include <net/netfilter/nf_conntrack_helper.h>
|
||||
#include <net/netfilter/nf_conntrack_core.h>
|
||||
@ -256,7 +256,7 @@ nf_ct_get_tuple(const struct sk_buff *skb,
|
||||
u_int8_t protonum,
|
||||
struct nf_conntrack_tuple *tuple,
|
||||
const struct nf_conntrack_l3proto *l3proto,
|
||||
const struct nf_conntrack_protocol *protocol)
|
||||
const struct nf_conntrack_l4proto *l4proto)
|
||||
{
|
||||
NF_CT_TUPLE_U_BLANK(tuple);
|
||||
|
||||
@ -267,14 +267,14 @@ nf_ct_get_tuple(const struct sk_buff *skb,
|
||||
tuple->dst.protonum = protonum;
|
||||
tuple->dst.dir = IP_CT_DIR_ORIGINAL;
|
||||
|
||||
return protocol->pkt_to_tuple(skb, dataoff, tuple);
|
||||
return l4proto->pkt_to_tuple(skb, dataoff, tuple);
|
||||
}
|
||||
|
||||
int
|
||||
nf_ct_invert_tuple(struct nf_conntrack_tuple *inverse,
|
||||
const struct nf_conntrack_tuple *orig,
|
||||
const struct nf_conntrack_l3proto *l3proto,
|
||||
const struct nf_conntrack_protocol *protocol)
|
||||
const struct nf_conntrack_l4proto *l4proto)
|
||||
{
|
||||
NF_CT_TUPLE_U_BLANK(inverse);
|
||||
|
||||
@ -285,7 +285,7 @@ nf_ct_invert_tuple(struct nf_conntrack_tuple *inverse,
|
||||
inverse->dst.dir = !orig->dst.dir;
|
||||
|
||||
inverse->dst.protonum = orig->dst.protonum;
|
||||
return protocol->invert_tuple(inverse, orig);
|
||||
return l4proto->invert_tuple(inverse, orig);
|
||||
}
|
||||
|
||||
static void
|
||||
@ -305,7 +305,7 @@ destroy_conntrack(struct nf_conntrack *nfct)
|
||||
{
|
||||
struct nf_conn *ct = (struct nf_conn *)nfct;
|
||||
struct nf_conntrack_l3proto *l3proto;
|
||||
struct nf_conntrack_protocol *proto;
|
||||
struct nf_conntrack_l4proto *l4proto;
|
||||
|
||||
DEBUGP("destroy_conntrack(%p)\n", ct);
|
||||
NF_CT_ASSERT(atomic_read(&nfct->use) == 0);
|
||||
@ -321,9 +321,9 @@ destroy_conntrack(struct nf_conntrack *nfct)
|
||||
if (l3proto && l3proto->destroy)
|
||||
l3proto->destroy(ct);
|
||||
|
||||
proto = __nf_ct_proto_find(ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.l3num, ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.protonum);
|
||||
if (proto && proto->destroy)
|
||||
proto->destroy(ct);
|
||||
l4proto = __nf_ct_l4proto_find(ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.l3num, ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.protonum);
|
||||
if (l4proto && l4proto->destroy)
|
||||
l4proto->destroy(ct);
|
||||
|
||||
if (nf_conntrack_destroyed)
|
||||
nf_conntrack_destroyed(ct);
|
||||
@ -647,7 +647,7 @@ void nf_conntrack_free(struct nf_conn *conntrack)
|
||||
static struct nf_conntrack_tuple_hash *
|
||||
init_conntrack(const struct nf_conntrack_tuple *tuple,
|
||||
struct nf_conntrack_l3proto *l3proto,
|
||||
struct nf_conntrack_protocol *protocol,
|
||||
struct nf_conntrack_l4proto *l4proto,
|
||||
struct sk_buff *skb,
|
||||
unsigned int dataoff)
|
||||
{
|
||||
@ -655,7 +655,7 @@ init_conntrack(const struct nf_conntrack_tuple *tuple,
|
||||
struct nf_conntrack_tuple repl_tuple;
|
||||
struct nf_conntrack_expect *exp;
|
||||
|
||||
if (!nf_ct_invert_tuple(&repl_tuple, tuple, l3proto, protocol)) {
|
||||
if (!nf_ct_invert_tuple(&repl_tuple, tuple, l3proto, l4proto)) {
|
||||
DEBUGP("Can't invert tuple.\n");
|
||||
return NULL;
|
||||
}
|
||||
@ -666,7 +666,7 @@ init_conntrack(const struct nf_conntrack_tuple *tuple,
|
||||
return (struct nf_conntrack_tuple_hash *)conntrack;
|
||||
}
|
||||
|
||||
if (!protocol->new(conntrack, skb, dataoff)) {
|
||||
if (!l4proto->new(conntrack, skb, dataoff)) {
|
||||
nf_conntrack_free(conntrack);
|
||||
DEBUGP("init conntrack: can't track with proto module\n");
|
||||
return NULL;
|
||||
@ -718,7 +718,7 @@ resolve_normal_ct(struct sk_buff *skb,
|
||||
u_int16_t l3num,
|
||||
u_int8_t protonum,
|
||||
struct nf_conntrack_l3proto *l3proto,
|
||||
struct nf_conntrack_protocol *proto,
|
||||
struct nf_conntrack_l4proto *l4proto,
|
||||
int *set_reply,
|
||||
enum ip_conntrack_info *ctinfo)
|
||||
{
|
||||
@ -728,7 +728,7 @@ resolve_normal_ct(struct sk_buff *skb,
|
||||
|
||||
if (!nf_ct_get_tuple(skb, (unsigned int)(skb->nh.raw - skb->data),
|
||||
dataoff, l3num, protonum, &tuple, l3proto,
|
||||
proto)) {
|
||||
l4proto)) {
|
||||
DEBUGP("resolve_normal_ct: Can't get tuple\n");
|
||||
return NULL;
|
||||
}
|
||||
@ -736,7 +736,7 @@ resolve_normal_ct(struct sk_buff *skb,
|
||||
/* look for tuple match */
|
||||
h = nf_conntrack_find_get(&tuple, NULL);
|
||||
if (!h) {
|
||||
h = init_conntrack(&tuple, l3proto, proto, skb, dataoff);
|
||||
h = init_conntrack(&tuple, l3proto, l4proto, skb, dataoff);
|
||||
if (!h)
|
||||
return NULL;
|
||||
if (IS_ERR(h))
|
||||
@ -774,7 +774,7 @@ nf_conntrack_in(int pf, unsigned int hooknum, struct sk_buff **pskb)
|
||||
struct nf_conn *ct;
|
||||
enum ip_conntrack_info ctinfo;
|
||||
struct nf_conntrack_l3proto *l3proto;
|
||||
struct nf_conntrack_protocol *proto;
|
||||
struct nf_conntrack_l4proto *l4proto;
|
||||
unsigned int dataoff;
|
||||
u_int8_t protonum;
|
||||
int set_reply = 0;
|
||||
@ -792,19 +792,19 @@ nf_conntrack_in(int pf, unsigned int hooknum, struct sk_buff **pskb)
|
||||
return -ret;
|
||||
}
|
||||
|
||||
proto = __nf_ct_proto_find((u_int16_t)pf, protonum);
|
||||
l4proto = __nf_ct_l4proto_find((u_int16_t)pf, protonum);
|
||||
|
||||
/* It may be an special packet, error, unclean...
|
||||
* inverse of the return code tells to the netfilter
|
||||
* core what to do with the packet. */
|
||||
if (proto->error != NULL &&
|
||||
(ret = proto->error(*pskb, dataoff, &ctinfo, pf, hooknum)) <= 0) {
|
||||
if (l4proto->error != NULL &&
|
||||
(ret = l4proto->error(*pskb, dataoff, &ctinfo, pf, hooknum)) <= 0) {
|
||||
NF_CT_STAT_INC(error);
|
||||
NF_CT_STAT_INC(invalid);
|
||||
return -ret;
|
||||
}
|
||||
|
||||
ct = resolve_normal_ct(*pskb, dataoff, pf, protonum, l3proto, proto,
|
||||
ct = resolve_normal_ct(*pskb, dataoff, pf, protonum, l3proto, l4proto,
|
||||
&set_reply, &ctinfo);
|
||||
if (!ct) {
|
||||
/* Not valid part of a connection */
|
||||
@ -820,7 +820,7 @@ nf_conntrack_in(int pf, unsigned int hooknum, struct sk_buff **pskb)
|
||||
|
||||
NF_CT_ASSERT((*pskb)->nfct);
|
||||
|
||||
ret = proto->packet(ct, *pskb, dataoff, ctinfo, pf, hooknum);
|
||||
ret = l4proto->packet(ct, *pskb, dataoff, ctinfo, pf, hooknum);
|
||||
if (ret < 0) {
|
||||
/* Invalid: inverse of the return code tells
|
||||
* the netfilter core what to do */
|
||||
@ -842,7 +842,7 @@ int nf_ct_invert_tuplepr(struct nf_conntrack_tuple *inverse,
|
||||
{
|
||||
return nf_ct_invert_tuple(inverse, orig,
|
||||
__nf_ct_l3proto_find(orig->src.l3num),
|
||||
__nf_ct_proto_find(orig->src.l3num,
|
||||
__nf_ct_l4proto_find(orig->src.l3num,
|
||||
orig->dst.protonum));
|
||||
}
|
||||
|
||||
@ -1199,7 +1199,7 @@ int __init nf_conntrack_init(void)
|
||||
/* Don't NEED lock here, but good form anyway. */
|
||||
write_lock_bh(&nf_conntrack_lock);
|
||||
for (i = 0; i < PF_MAX; i++)
|
||||
nf_ct_l3protos[i] = &nf_conntrack_generic_l3proto;
|
||||
nf_ct_l3protos[i] = &nf_conntrack_l3proto_generic;
|
||||
write_unlock_bh(&nf_conntrack_lock);
|
||||
|
||||
/* For use by REJECT target */
|
||||
|
||||
@ -22,7 +22,7 @@
|
||||
|
||||
#include <net/netfilter/nf_conntrack.h>
|
||||
#include <net/netfilter/nf_conntrack_l3proto.h>
|
||||
#include <net/netfilter/nf_conntrack_protocol.h>
|
||||
#include <net/netfilter/nf_conntrack_l4proto.h>
|
||||
#include <net/netfilter/nf_conntrack_expect.h>
|
||||
#include <net/netfilter/nf_conntrack_helper.h>
|
||||
#include <net/netfilter/nf_conntrack_core.h>
|
||||
|
||||
@ -338,7 +338,7 @@ static int exp_seq_show(struct seq_file *s, void *v)
|
||||
expect->tuple.dst.protonum);
|
||||
print_tuple(s, &expect->tuple,
|
||||
__nf_ct_l3proto_find(expect->tuple.src.l3num),
|
||||
__nf_ct_proto_find(expect->tuple.src.l3num,
|
||||
__nf_ct_l4proto_find(expect->tuple.src.l3num,
|
||||
expect->tuple.dst.protonum));
|
||||
return seq_putc(s, '\n');
|
||||
}
|
||||
|
||||
@ -26,7 +26,7 @@
|
||||
|
||||
#include <net/netfilter/nf_conntrack.h>
|
||||
#include <net/netfilter/nf_conntrack_l3proto.h>
|
||||
#include <net/netfilter/nf_conntrack_protocol.h>
|
||||
#include <net/netfilter/nf_conntrack_l4proto.h>
|
||||
#include <net/netfilter/nf_conntrack_helper.h>
|
||||
#include <net/netfilter/nf_conntrack_core.h>
|
||||
|
||||
|
||||
@ -26,7 +26,7 @@
|
||||
|
||||
#include <linux/netfilter_ipv4.h>
|
||||
#include <net/netfilter/nf_conntrack.h>
|
||||
#include <net/netfilter/nf_conntrack_protocol.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/ipv4/nf_conntrack_ipv4.h>
|
||||
@ -84,7 +84,7 @@ static u_int32_t generic_get_features(const struct nf_conntrack_tuple *tuple)
|
||||
return NF_CT_F_BASIC;
|
||||
}
|
||||
|
||||
struct nf_conntrack_l3proto nf_conntrack_generic_l3proto = {
|
||||
struct nf_conntrack_l3proto nf_conntrack_l3proto_generic = {
|
||||
.l3proto = PF_UNSPEC,
|
||||
.name = "unknown",
|
||||
.pkt_to_tuple = generic_pkt_to_tuple,
|
||||
|
||||
@ -38,7 +38,7 @@
|
||||
#include <net/netfilter/nf_conntrack_expect.h>
|
||||
#include <net/netfilter/nf_conntrack_helper.h>
|
||||
#include <net/netfilter/nf_conntrack_l3proto.h>
|
||||
#include <net/netfilter/nf_conntrack_protocol.h>
|
||||
#include <net/netfilter/nf_conntrack_l4proto.h>
|
||||
#include <linux/netfilter_ipv4/ip_nat_protocol.h>
|
||||
|
||||
#include <linux/netfilter/nfnetlink.h>
|
||||
@ -51,15 +51,15 @@ static char __initdata version[] = "0.93";
|
||||
static inline int
|
||||
ctnetlink_dump_tuples_proto(struct sk_buff *skb,
|
||||
const struct nf_conntrack_tuple *tuple,
|
||||
struct nf_conntrack_protocol *proto)
|
||||
struct nf_conntrack_l4proto *l4proto)
|
||||
{
|
||||
int ret = 0;
|
||||
struct nfattr *nest_parms = NFA_NEST(skb, CTA_TUPLE_PROTO);
|
||||
|
||||
NFA_PUT(skb, CTA_PROTO_NUM, sizeof(u_int8_t), &tuple->dst.protonum);
|
||||
|
||||
if (likely(proto->tuple_to_nfattr))
|
||||
ret = proto->tuple_to_nfattr(skb, tuple);
|
||||
if (likely(l4proto->tuple_to_nfattr))
|
||||
ret = l4proto->tuple_to_nfattr(skb, tuple);
|
||||
|
||||
NFA_NEST_END(skb, nest_parms);
|
||||
|
||||
@ -94,7 +94,7 @@ ctnetlink_dump_tuples(struct sk_buff *skb,
|
||||
{
|
||||
int ret;
|
||||
struct nf_conntrack_l3proto *l3proto;
|
||||
struct nf_conntrack_protocol *proto;
|
||||
struct nf_conntrack_l4proto *l4proto;
|
||||
|
||||
l3proto = nf_ct_l3proto_find_get(tuple->src.l3num);
|
||||
ret = ctnetlink_dump_tuples_ip(skb, tuple, l3proto);
|
||||
@ -103,9 +103,9 @@ ctnetlink_dump_tuples(struct sk_buff *skb,
|
||||
if (unlikely(ret < 0))
|
||||
return ret;
|
||||
|
||||
proto = nf_ct_proto_find_get(tuple->src.l3num, tuple->dst.protonum);
|
||||
ret = ctnetlink_dump_tuples_proto(skb, tuple, proto);
|
||||
nf_ct_proto_put(proto);
|
||||
l4proto = nf_ct_l4proto_find_get(tuple->src.l3num, tuple->dst.protonum);
|
||||
ret = ctnetlink_dump_tuples_proto(skb, tuple, l4proto);
|
||||
nf_ct_l4proto_put(l4proto);
|
||||
|
||||
return ret;
|
||||
}
|
||||
@ -142,27 +142,27 @@ ctnetlink_dump_timeout(struct sk_buff *skb, const struct nf_conn *ct)
|
||||
static inline int
|
||||
ctnetlink_dump_protoinfo(struct sk_buff *skb, const struct nf_conn *ct)
|
||||
{
|
||||
struct nf_conntrack_protocol *proto = nf_ct_proto_find_get(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num, ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum);
|
||||
struct nf_conntrack_l4proto *l4proto = nf_ct_l4proto_find_get(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num, ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum);
|
||||
struct nfattr *nest_proto;
|
||||
int ret;
|
||||
|
||||
if (!proto->to_nfattr) {
|
||||
nf_ct_proto_put(proto);
|
||||
if (!l4proto->to_nfattr) {
|
||||
nf_ct_l4proto_put(l4proto);
|
||||
return 0;
|
||||
}
|
||||
|
||||
nest_proto = NFA_NEST(skb, CTA_PROTOINFO);
|
||||
|
||||
ret = proto->to_nfattr(skb, nest_proto, ct);
|
||||
ret = l4proto->to_nfattr(skb, nest_proto, ct);
|
||||
|
||||
nf_ct_proto_put(proto);
|
||||
nf_ct_l4proto_put(l4proto);
|
||||
|
||||
NFA_NEST_END(skb, nest_proto);
|
||||
|
||||
return ret;
|
||||
|
||||
nfattr_failure:
|
||||
nf_ct_proto_put(proto);
|
||||
nf_ct_l4proto_put(l4proto);
|
||||
return -1;
|
||||
}
|
||||
|
||||
@ -493,7 +493,7 @@ ctnetlink_parse_tuple_proto(struct nfattr *attr,
|
||||
struct nf_conntrack_tuple *tuple)
|
||||
{
|
||||
struct nfattr *tb[CTA_PROTO_MAX];
|
||||
struct nf_conntrack_protocol *proto;
|
||||
struct nf_conntrack_l4proto *l4proto;
|
||||
int ret = 0;
|
||||
|
||||
nfattr_parse_nested(tb, CTA_PROTO_MAX, attr);
|
||||
@ -505,12 +505,12 @@ ctnetlink_parse_tuple_proto(struct nfattr *attr,
|
||||
return -EINVAL;
|
||||
tuple->dst.protonum = *(u_int8_t *)NFA_DATA(tb[CTA_PROTO_NUM-1]);
|
||||
|
||||
proto = nf_ct_proto_find_get(tuple->src.l3num, tuple->dst.protonum);
|
||||
l4proto = nf_ct_l4proto_find_get(tuple->src.l3num, tuple->dst.protonum);
|
||||
|
||||
if (likely(proto->nfattr_to_tuple))
|
||||
ret = proto->nfattr_to_tuple(tb, tuple);
|
||||
if (likely(l4proto->nfattr_to_tuple))
|
||||
ret = l4proto->nfattr_to_tuple(tb, tuple);
|
||||
|
||||
nf_ct_proto_put(proto);
|
||||
nf_ct_l4proto_put(l4proto);
|
||||
|
||||
return ret;
|
||||
}
|
||||
@ -890,18 +890,18 @@ static inline int
|
||||
ctnetlink_change_protoinfo(struct nf_conn *ct, struct nfattr *cda[])
|
||||
{
|
||||
struct nfattr *tb[CTA_PROTOINFO_MAX], *attr = cda[CTA_PROTOINFO-1];
|
||||
struct nf_conntrack_protocol *proto;
|
||||
struct nf_conntrack_l4proto *l4proto;
|
||||
u_int16_t npt = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum;
|
||||
u_int16_t l3num = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
|
||||
int err = 0;
|
||||
|
||||
nfattr_parse_nested(tb, CTA_PROTOINFO_MAX, attr);
|
||||
|
||||
proto = nf_ct_proto_find_get(l3num, npt);
|
||||
l4proto = nf_ct_l4proto_find_get(l3num, npt);
|
||||
|
||||
if (proto->from_nfattr)
|
||||
err = proto->from_nfattr(tb, ct);
|
||||
nf_ct_proto_put(proto);
|
||||
if (l4proto->from_nfattr)
|
||||
err = l4proto->from_nfattr(tb, ct);
|
||||
nf_ct_l4proto_put(l4proto);
|
||||
|
||||
return err;
|
||||
}
|
||||
@ -1081,7 +1081,7 @@ ctnetlink_exp_dump_mask(struct sk_buff *skb,
|
||||
{
|
||||
int ret;
|
||||
struct nf_conntrack_l3proto *l3proto;
|
||||
struct nf_conntrack_protocol *proto;
|
||||
struct nf_conntrack_l4proto *l4proto;
|
||||
struct nfattr *nest_parms = NFA_NEST(skb, CTA_EXPECT_MASK);
|
||||
|
||||
l3proto = nf_ct_l3proto_find_get(tuple->src.l3num);
|
||||
@ -1091,9 +1091,9 @@ ctnetlink_exp_dump_mask(struct sk_buff *skb,
|
||||
if (unlikely(ret < 0))
|
||||
goto nfattr_failure;
|
||||
|
||||
proto = nf_ct_proto_find_get(tuple->src.l3num, tuple->dst.protonum);
|
||||
ret = ctnetlink_dump_tuples_proto(skb, mask, proto);
|
||||
nf_ct_proto_put(proto);
|
||||
l4proto = nf_ct_l4proto_find_get(tuple->src.l3num, tuple->dst.protonum);
|
||||
ret = ctnetlink_dump_tuples_proto(skb, mask, l4proto);
|
||||
nf_ct_l4proto_put(l4proto);
|
||||
if (unlikely(ret < 0))
|
||||
goto nfattr_failure;
|
||||
|
||||
|
||||
@ -24,38 +24,38 @@
|
||||
|
||||
#include <net/netfilter/nf_conntrack.h>
|
||||
#include <net/netfilter/nf_conntrack_l3proto.h>
|
||||
#include <net/netfilter/nf_conntrack_protocol.h>
|
||||
#include <net/netfilter/nf_conntrack_l4proto.h>
|
||||
#include <net/netfilter/nf_conntrack_core.h>
|
||||
|
||||
struct nf_conntrack_protocol **nf_ct_protos[PF_MAX] __read_mostly;
|
||||
struct nf_conntrack_l4proto **nf_ct_protos[PF_MAX] __read_mostly;
|
||||
struct nf_conntrack_l3proto *nf_ct_l3protos[PF_MAX] __read_mostly;
|
||||
|
||||
struct nf_conntrack_protocol *
|
||||
__nf_ct_proto_find(u_int16_t l3proto, u_int8_t protocol)
|
||||
struct nf_conntrack_l4proto *
|
||||
__nf_ct_l4proto_find(u_int16_t l3proto, u_int8_t l4proto)
|
||||
{
|
||||
if (unlikely(l3proto >= AF_MAX || nf_ct_protos[l3proto] == NULL))
|
||||
return &nf_conntrack_generic_protocol;
|
||||
return &nf_conntrack_l4proto_generic;
|
||||
|
||||
return nf_ct_protos[l3proto][protocol];
|
||||
return nf_ct_protos[l3proto][l4proto];
|
||||
}
|
||||
|
||||
/* this is guaranteed to always return a valid protocol helper, since
|
||||
* it falls back to generic_protocol */
|
||||
struct nf_conntrack_protocol *
|
||||
nf_ct_proto_find_get(u_int16_t l3proto, u_int8_t protocol)
|
||||
struct nf_conntrack_l4proto *
|
||||
nf_ct_l4proto_find_get(u_int16_t l3proto, u_int8_t l4proto)
|
||||
{
|
||||
struct nf_conntrack_protocol *p;
|
||||
struct nf_conntrack_l4proto *p;
|
||||
|
||||
preempt_disable();
|
||||
p = __nf_ct_proto_find(l3proto, protocol);
|
||||
p = __nf_ct_l4proto_find(l3proto, l4proto);
|
||||
if (!try_module_get(p->me))
|
||||
p = &nf_conntrack_generic_protocol;
|
||||
p = &nf_conntrack_l4proto_generic;
|
||||
preempt_enable();
|
||||
|
||||
return p;
|
||||
}
|
||||
|
||||
void nf_ct_proto_put(struct nf_conntrack_protocol *p)
|
||||
void nf_ct_l4proto_put(struct nf_conntrack_l4proto *p)
|
||||
{
|
||||
module_put(p->me);
|
||||
}
|
||||
@ -68,7 +68,7 @@ nf_ct_l3proto_find_get(u_int16_t l3proto)
|
||||
preempt_disable();
|
||||
p = __nf_ct_l3proto_find(l3proto);
|
||||
if (!try_module_get(p->me))
|
||||
p = &nf_conntrack_generic_l3proto;
|
||||
p = &nf_conntrack_l3proto_generic;
|
||||
preempt_enable();
|
||||
|
||||
return p;
|
||||
@ -86,7 +86,7 @@ nf_ct_l3proto_try_module_get(unsigned short l3proto)
|
||||
struct nf_conntrack_l3proto *p;
|
||||
|
||||
retry: p = nf_ct_l3proto_find_get(l3proto);
|
||||
if (p == &nf_conntrack_generic_l3proto) {
|
||||
if (p == &nf_conntrack_l3proto_generic) {
|
||||
ret = request_module("nf_conntrack-%d", l3proto);
|
||||
if (!ret)
|
||||
goto retry;
|
||||
@ -114,14 +114,14 @@ static int kill_l3proto(struct nf_conn *i, void *data)
|
||||
((struct nf_conntrack_l3proto *)data)->l3proto);
|
||||
}
|
||||
|
||||
static int kill_proto(struct nf_conn *i, void *data)
|
||||
static int kill_l4proto(struct nf_conn *i, void *data)
|
||||
{
|
||||
struct nf_conntrack_protocol *proto;
|
||||
proto = (struct nf_conntrack_protocol *)data;
|
||||
struct nf_conntrack_l4proto *l4proto;
|
||||
l4proto = (struct nf_conntrack_l4proto *)data;
|
||||
return (i->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum ==
|
||||
proto->proto) &&
|
||||
l4proto->l4proto) &&
|
||||
(i->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num ==
|
||||
proto->l3proto);
|
||||
l4proto->l3proto);
|
||||
}
|
||||
|
||||
int nf_conntrack_l3proto_register(struct nf_conntrack_l3proto *proto)
|
||||
@ -129,7 +129,7 @@ int nf_conntrack_l3proto_register(struct nf_conntrack_l3proto *proto)
|
||||
int ret = 0;
|
||||
|
||||
write_lock_bh(&nf_conntrack_lock);
|
||||
if (nf_ct_l3protos[proto->l3proto] != &nf_conntrack_generic_l3proto) {
|
||||
if (nf_ct_l3protos[proto->l3proto] != &nf_conntrack_l3proto_generic) {
|
||||
ret = -EBUSY;
|
||||
goto out;
|
||||
}
|
||||
@ -143,7 +143,7 @@ int nf_conntrack_l3proto_register(struct nf_conntrack_l3proto *proto)
|
||||
void nf_conntrack_l3proto_unregister(struct nf_conntrack_l3proto *proto)
|
||||
{
|
||||
write_lock_bh(&nf_conntrack_lock);
|
||||
nf_ct_l3protos[proto->l3proto] = &nf_conntrack_generic_l3proto;
|
||||
nf_ct_l3protos[proto->l3proto] = &nf_conntrack_l3proto_generic;
|
||||
write_unlock_bh(&nf_conntrack_lock);
|
||||
|
||||
/* Somebody could be still looking at the proto in bh. */
|
||||
@ -155,43 +155,43 @@ void nf_conntrack_l3proto_unregister(struct nf_conntrack_l3proto *proto)
|
||||
|
||||
/* FIXME: Allow NULL functions and sub in pointers to generic for
|
||||
them. --RR */
|
||||
int nf_conntrack_protocol_register(struct nf_conntrack_protocol *proto)
|
||||
int nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *l4proto)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
retry:
|
||||
write_lock_bh(&nf_conntrack_lock);
|
||||
if (nf_ct_protos[proto->l3proto]) {
|
||||
if (nf_ct_protos[proto->l3proto][proto->proto]
|
||||
!= &nf_conntrack_generic_protocol) {
|
||||
if (nf_ct_protos[l4proto->l3proto]) {
|
||||
if (nf_ct_protos[l4proto->l3proto][l4proto->l4proto]
|
||||
!= &nf_conntrack_l4proto_generic) {
|
||||
ret = -EBUSY;
|
||||
goto out_unlock;
|
||||
}
|
||||
} else {
|
||||
/* l3proto may be loaded latter. */
|
||||
struct nf_conntrack_protocol **proto_array;
|
||||
struct nf_conntrack_l4proto **proto_array;
|
||||
int i;
|
||||
|
||||
write_unlock_bh(&nf_conntrack_lock);
|
||||
|
||||
proto_array = (struct nf_conntrack_protocol **)
|
||||
proto_array = (struct nf_conntrack_l4proto **)
|
||||
kmalloc(MAX_NF_CT_PROTO *
|
||||
sizeof(struct nf_conntrack_protocol *),
|
||||
sizeof(struct nf_conntrack_l4proto *),
|
||||
GFP_KERNEL);
|
||||
if (proto_array == NULL) {
|
||||
ret = -ENOMEM;
|
||||
goto out;
|
||||
}
|
||||
for (i = 0; i < MAX_NF_CT_PROTO; i++)
|
||||
proto_array[i] = &nf_conntrack_generic_protocol;
|
||||
proto_array[i] = &nf_conntrack_l4proto_generic;
|
||||
|
||||
write_lock_bh(&nf_conntrack_lock);
|
||||
if (nf_ct_protos[proto->l3proto]) {
|
||||
if (nf_ct_protos[l4proto->l3proto]) {
|
||||
/* bad timing, but no problem */
|
||||
write_unlock_bh(&nf_conntrack_lock);
|
||||
kfree(proto_array);
|
||||
} else {
|
||||
nf_ct_protos[proto->l3proto] = proto_array;
|
||||
nf_ct_protos[l4proto->l3proto] = proto_array;
|
||||
write_unlock_bh(&nf_conntrack_lock);
|
||||
}
|
||||
|
||||
@ -202,7 +202,7 @@ int nf_conntrack_protocol_register(struct nf_conntrack_protocol *proto)
|
||||
goto retry;
|
||||
}
|
||||
|
||||
nf_ct_protos[proto->l3proto][proto->proto] = proto;
|
||||
nf_ct_protos[l4proto->l3proto][l4proto->l4proto] = l4proto;
|
||||
|
||||
out_unlock:
|
||||
write_unlock_bh(&nf_conntrack_lock);
|
||||
@ -210,16 +210,16 @@ int nf_conntrack_protocol_register(struct nf_conntrack_protocol *proto)
|
||||
return ret;
|
||||
}
|
||||
|
||||
void nf_conntrack_protocol_unregister(struct nf_conntrack_protocol *proto)
|
||||
void nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *l4proto)
|
||||
{
|
||||
write_lock_bh(&nf_conntrack_lock);
|
||||
nf_ct_protos[proto->l3proto][proto->proto]
|
||||
= &nf_conntrack_generic_protocol;
|
||||
nf_ct_protos[l4proto->l3proto][l4proto->l4proto]
|
||||
= &nf_conntrack_l4proto_generic;
|
||||
write_unlock_bh(&nf_conntrack_lock);
|
||||
|
||||
/* Somebody could be still looking at the proto in bh. */
|
||||
synchronize_net();
|
||||
|
||||
/* Remove all contrack entries for this protocol */
|
||||
nf_ct_iterate_cleanup(kill_proto, proto);
|
||||
nf_ct_iterate_cleanup(kill_l4proto, l4proto);
|
||||
}
|
||||
|
||||
@ -15,7 +15,7 @@
|
||||
#include <linux/sched.h>
|
||||
#include <linux/timer.h>
|
||||
#include <linux/netfilter.h>
|
||||
#include <net/netfilter/nf_conntrack_protocol.h>
|
||||
#include <net/netfilter/nf_conntrack_l4proto.h>
|
||||
|
||||
unsigned int nf_ct_generic_timeout __read_mostly = 600*HZ;
|
||||
|
||||
@ -71,10 +71,10 @@ static int new(struct nf_conn *conntrack, const struct sk_buff *skb,
|
||||
return 1;
|
||||
}
|
||||
|
||||
struct nf_conntrack_protocol nf_conntrack_generic_protocol =
|
||||
struct nf_conntrack_l4proto nf_conntrack_l4proto_generic =
|
||||
{
|
||||
.l3proto = PF_UNSPEC,
|
||||
.proto = 0,
|
||||
.l4proto = 0,
|
||||
.name = "unknown",
|
||||
.pkt_to_tuple = generic_pkt_to_tuple,
|
||||
.invert_tuple = generic_invert_tuple,
|
||||
|
||||
@ -32,7 +32,7 @@
|
||||
#include <linux/interrupt.h>
|
||||
|
||||
#include <net/netfilter/nf_conntrack.h>
|
||||
#include <net/netfilter/nf_conntrack_protocol.h>
|
||||
#include <net/netfilter/nf_conntrack_l4proto.h>
|
||||
#include <net/netfilter/nf_conntrack_ecache.h>
|
||||
|
||||
#if 0
|
||||
@ -509,9 +509,9 @@ static int sctp_new(struct nf_conn *conntrack, const struct sk_buff *skb,
|
||||
return 1;
|
||||
}
|
||||
|
||||
struct nf_conntrack_protocol nf_conntrack_protocol_sctp4 = {
|
||||
struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 = {
|
||||
.l3proto = PF_INET,
|
||||
.proto = IPPROTO_SCTP,
|
||||
.l4proto = IPPROTO_SCTP,
|
||||
.name = "sctp",
|
||||
.pkt_to_tuple = sctp_pkt_to_tuple,
|
||||
.invert_tuple = sctp_invert_tuple,
|
||||
@ -523,9 +523,9 @@ struct nf_conntrack_protocol nf_conntrack_protocol_sctp4 = {
|
||||
.me = THIS_MODULE
|
||||
};
|
||||
|
||||
struct nf_conntrack_protocol nf_conntrack_protocol_sctp6 = {
|
||||
struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 = {
|
||||
.l3proto = PF_INET6,
|
||||
.proto = IPPROTO_SCTP,
|
||||
.l4proto = IPPROTO_SCTP,
|
||||
.name = "sctp",
|
||||
.pkt_to_tuple = sctp_pkt_to_tuple,
|
||||
.invert_tuple = sctp_invert_tuple,
|
||||
@ -625,14 +625,14 @@ int __init nf_conntrack_proto_sctp_init(void)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = nf_conntrack_protocol_register(&nf_conntrack_protocol_sctp4);
|
||||
ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_sctp4);
|
||||
if (ret) {
|
||||
printk("nf_conntrack_proto_sctp4: protocol register failed\n");
|
||||
printk("nf_conntrack_l4proto_sctp4: protocol register failed\n");
|
||||
goto out;
|
||||
}
|
||||
ret = nf_conntrack_protocol_register(&nf_conntrack_protocol_sctp6);
|
||||
ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_sctp6);
|
||||
if (ret) {
|
||||
printk("nf_conntrack_proto_sctp6: protocol register failed\n");
|
||||
printk("nf_conntrack_l4proto_sctp6: protocol register failed\n");
|
||||
goto cleanup_sctp4;
|
||||
}
|
||||
|
||||
@ -648,10 +648,10 @@ int __init nf_conntrack_proto_sctp_init(void)
|
||||
|
||||
#ifdef CONFIG_SYSCTL
|
||||
cleanup:
|
||||
nf_conntrack_protocol_unregister(&nf_conntrack_protocol_sctp6);
|
||||
nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_sctp6);
|
||||
#endif
|
||||
cleanup_sctp4:
|
||||
nf_conntrack_protocol_unregister(&nf_conntrack_protocol_sctp4);
|
||||
nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_sctp4);
|
||||
out:
|
||||
DEBUGP("SCTP conntrack module loading %s\n",
|
||||
ret ? "failed": "succeeded");
|
||||
@ -660,8 +660,8 @@ int __init nf_conntrack_proto_sctp_init(void)
|
||||
|
||||
void __exit nf_conntrack_proto_sctp_fini(void)
|
||||
{
|
||||
nf_conntrack_protocol_unregister(&nf_conntrack_protocol_sctp6);
|
||||
nf_conntrack_protocol_unregister(&nf_conntrack_protocol_sctp4);
|
||||
nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_sctp6);
|
||||
nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_sctp4);
|
||||
#ifdef CONFIG_SYSCTL
|
||||
unregister_sysctl_table(nf_ct_sysctl_header);
|
||||
#endif
|
||||
|
||||
@ -42,7 +42,7 @@
|
||||
#include <linux/netfilter_ipv4.h>
|
||||
#include <linux/netfilter_ipv6.h>
|
||||
#include <net/netfilter/nf_conntrack.h>
|
||||
#include <net/netfilter/nf_conntrack_protocol.h>
|
||||
#include <net/netfilter/nf_conntrack_l4proto.h>
|
||||
#include <net/netfilter/nf_conntrack_ecache.h>
|
||||
|
||||
#if 0
|
||||
@ -1169,10 +1169,10 @@ static int nfattr_to_tcp(struct nfattr *cda[], struct nf_conn *ct)
|
||||
}
|
||||
#endif
|
||||
|
||||
struct nf_conntrack_protocol nf_conntrack_protocol_tcp4 =
|
||||
struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 =
|
||||
{
|
||||
.l3proto = PF_INET,
|
||||
.proto = IPPROTO_TCP,
|
||||
.l4proto = IPPROTO_TCP,
|
||||
.name = "tcp",
|
||||
.pkt_to_tuple = tcp_pkt_to_tuple,
|
||||
.invert_tuple = tcp_invert_tuple,
|
||||
@ -1190,10 +1190,10 @@ struct nf_conntrack_protocol nf_conntrack_protocol_tcp4 =
|
||||
#endif
|
||||
};
|
||||
|
||||
struct nf_conntrack_protocol nf_conntrack_protocol_tcp6 =
|
||||
struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6 =
|
||||
{
|
||||
.l3proto = PF_INET6,
|
||||
.proto = IPPROTO_TCP,
|
||||
.l4proto = IPPROTO_TCP,
|
||||
.name = "tcp",
|
||||
.pkt_to_tuple = tcp_pkt_to_tuple,
|
||||
.invert_tuple = tcp_invert_tuple,
|
||||
@ -1211,5 +1211,5 @@ struct nf_conntrack_protocol nf_conntrack_protocol_tcp6 =
|
||||
#endif
|
||||
};
|
||||
|
||||
EXPORT_SYMBOL(nf_conntrack_protocol_tcp4);
|
||||
EXPORT_SYMBOL(nf_conntrack_protocol_tcp6);
|
||||
EXPORT_SYMBOL(nf_conntrack_l4proto_tcp4);
|
||||
EXPORT_SYMBOL(nf_conntrack_l4proto_tcp6);
|
||||
|
||||
@ -26,7 +26,7 @@
|
||||
#include <linux/netfilter.h>
|
||||
#include <linux/netfilter_ipv4.h>
|
||||
#include <linux/netfilter_ipv6.h>
|
||||
#include <net/netfilter/nf_conntrack_protocol.h>
|
||||
#include <net/netfilter/nf_conntrack_l4proto.h>
|
||||
#include <net/netfilter/nf_conntrack_ecache.h>
|
||||
|
||||
unsigned int nf_ct_udp_timeout __read_mostly = 30*HZ;
|
||||
@ -148,10 +148,10 @@ static int udp_error(struct sk_buff *skb, unsigned int dataoff,
|
||||
return NF_ACCEPT;
|
||||
}
|
||||
|
||||
struct nf_conntrack_protocol nf_conntrack_protocol_udp4 =
|
||||
struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 =
|
||||
{
|
||||
.l3proto = PF_INET,
|
||||
.proto = IPPROTO_UDP,
|
||||
.l4proto = IPPROTO_UDP,
|
||||
.name = "udp",
|
||||
.pkt_to_tuple = udp_pkt_to_tuple,
|
||||
.invert_tuple = udp_invert_tuple,
|
||||
@ -167,10 +167,10 @@ struct nf_conntrack_protocol nf_conntrack_protocol_udp4 =
|
||||
#endif
|
||||
};
|
||||
|
||||
struct nf_conntrack_protocol nf_conntrack_protocol_udp6 =
|
||||
struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6 =
|
||||
{
|
||||
.l3proto = PF_INET6,
|
||||
.proto = IPPROTO_UDP,
|
||||
.l4proto = IPPROTO_UDP,
|
||||
.name = "udp",
|
||||
.pkt_to_tuple = udp_pkt_to_tuple,
|
||||
.invert_tuple = udp_invert_tuple,
|
||||
@ -186,5 +186,5 @@ struct nf_conntrack_protocol nf_conntrack_protocol_udp6 =
|
||||
#endif
|
||||
};
|
||||
|
||||
EXPORT_SYMBOL(nf_conntrack_protocol_udp4);
|
||||
EXPORT_SYMBOL(nf_conntrack_protocol_udp6);
|
||||
EXPORT_SYMBOL(nf_conntrack_l4proto_udp4);
|
||||
EXPORT_SYMBOL(nf_conntrack_l4proto_udp6);
|
||||
|
||||
@ -35,7 +35,7 @@
|
||||
#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_protocol.h>
|
||||
#include <net/netfilter/nf_conntrack_l4proto.h>
|
||||
#include <net/netfilter/nf_conntrack_expect.h>
|
||||
#include <net/netfilter/nf_conntrack_helper.h>
|
||||
|
||||
@ -54,9 +54,9 @@ DECLARE_PER_CPU(struct ip_conntrack_stat, nf_conntrack_stat);
|
||||
int
|
||||
print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple,
|
||||
struct nf_conntrack_l3proto *l3proto,
|
||||
struct nf_conntrack_protocol *proto)
|
||||
struct nf_conntrack_l4proto *l4proto)
|
||||
{
|
||||
return l3proto->print_tuple(s, tuple) || proto->print_tuple(s, tuple);
|
||||
return l3proto->print_tuple(s, tuple) || l4proto->print_tuple(s, tuple);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_NF_CT_ACCT
|
||||
@ -135,7 +135,7 @@ static int ct_seq_show(struct seq_file *s, void *v)
|
||||
const struct nf_conntrack_tuple_hash *hash = v;
|
||||
const struct nf_conn *conntrack = nf_ct_tuplehash_to_ctrack(hash);
|
||||
struct nf_conntrack_l3proto *l3proto;
|
||||
struct nf_conntrack_protocol *proto;
|
||||
struct nf_conntrack_l4proto *l4proto;
|
||||
|
||||
ASSERT_READ_LOCK(&nf_conntrack_lock);
|
||||
NF_CT_ASSERT(conntrack);
|
||||
@ -148,16 +148,16 @@ static int ct_seq_show(struct seq_file *s, void *v)
|
||||
.tuple.src.l3num);
|
||||
|
||||
NF_CT_ASSERT(l3proto);
|
||||
proto = __nf_ct_proto_find(conntrack->tuplehash[IP_CT_DIR_ORIGINAL]
|
||||
l4proto = __nf_ct_l4proto_find(conntrack->tuplehash[IP_CT_DIR_ORIGINAL]
|
||||
.tuple.src.l3num,
|
||||
conntrack->tuplehash[IP_CT_DIR_ORIGINAL]
|
||||
.tuple.dst.protonum);
|
||||
NF_CT_ASSERT(proto);
|
||||
NF_CT_ASSERT(l4proto);
|
||||
|
||||
if (seq_printf(s, "%-8s %u %-8s %u %ld ",
|
||||
l3proto->name,
|
||||
conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num,
|
||||
proto->name,
|
||||
l4proto->name,
|
||||
conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum,
|
||||
timer_pending(&conntrack->timeout)
|
||||
? (long)(conntrack->timeout.expires - jiffies)/HZ : 0) != 0)
|
||||
@ -166,11 +166,11 @@ static int ct_seq_show(struct seq_file *s, void *v)
|
||||
if (l3proto->print_conntrack(s, conntrack))
|
||||
return -ENOSPC;
|
||||
|
||||
if (proto->print_conntrack(s, conntrack))
|
||||
if (l4proto->print_conntrack(s, conntrack))
|
||||
return -ENOSPC;
|
||||
|
||||
if (print_tuple(s, &conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
|
||||
l3proto, proto))
|
||||
l3proto, l4proto))
|
||||
return -ENOSPC;
|
||||
|
||||
if (seq_print_counters(s, &conntrack->counters[IP_CT_DIR_ORIGINAL]))
|
||||
@ -181,7 +181,7 @@ static int ct_seq_show(struct seq_file *s, void *v)
|
||||
return -ENOSPC;
|
||||
|
||||
if (print_tuple(s, &conntrack->tuplehash[IP_CT_DIR_REPLY].tuple,
|
||||
l3proto, proto))
|
||||
l3proto, l4proto))
|
||||
return -ENOSPC;
|
||||
|
||||
if (seq_print_counters(s, &conntrack->counters[IP_CT_DIR_REPLY]))
|
||||
@ -655,8 +655,8 @@ EXPORT_SYMBOL(nf_ct_l3proto_try_module_get);
|
||||
EXPORT_SYMBOL(nf_ct_l3proto_module_put);
|
||||
EXPORT_SYMBOL(nf_conntrack_l3proto_register);
|
||||
EXPORT_SYMBOL(nf_conntrack_l3proto_unregister);
|
||||
EXPORT_SYMBOL(nf_conntrack_protocol_register);
|
||||
EXPORT_SYMBOL(nf_conntrack_protocol_unregister);
|
||||
EXPORT_SYMBOL(nf_conntrack_l4proto_register);
|
||||
EXPORT_SYMBOL(nf_conntrack_l4proto_unregister);
|
||||
EXPORT_SYMBOL(nf_ct_invert_tuplepr);
|
||||
EXPORT_SYMBOL(nf_conntrack_destroyed);
|
||||
EXPORT_SYMBOL(need_conntrack);
|
||||
@ -665,9 +665,9 @@ EXPORT_SYMBOL(nf_conntrack_helper_unregister);
|
||||
EXPORT_SYMBOL(nf_ct_iterate_cleanup);
|
||||
EXPORT_SYMBOL(__nf_ct_refresh_acct);
|
||||
EXPORT_SYMBOL(nf_ct_protos);
|
||||
EXPORT_SYMBOL(__nf_ct_proto_find);
|
||||
EXPORT_SYMBOL(nf_ct_proto_find_get);
|
||||
EXPORT_SYMBOL(nf_ct_proto_put);
|
||||
EXPORT_SYMBOL(__nf_ct_l4proto_find);
|
||||
EXPORT_SYMBOL(nf_ct_l4proto_find_get);
|
||||
EXPORT_SYMBOL(nf_ct_l4proto_put);
|
||||
EXPORT_SYMBOL(nf_ct_l3proto_find_get);
|
||||
EXPORT_SYMBOL(nf_ct_l3proto_put);
|
||||
EXPORT_SYMBOL(nf_ct_l3protos);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user