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-rw-r--r--include/net/ipv6.h273
1 files changed, 151 insertions, 122 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index eb198ac..bbf1c8f 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -244,15 +244,14 @@ struct ipv6_fl_socklist {
struct rcu_head rcu;
};
-struct ip6_flowlabel *fl6_sock_lookup(struct sock *sk, __be32 label);
-struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions *opt_space,
- struct ip6_flowlabel *fl,
- struct ipv6_txoptions *fopt);
-void fl6_free_socklist(struct sock *sk);
-int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen);
-int ipv6_flowlabel_opt_get(struct sock *sk, struct in6_flowlabel_req *freq);
-int ip6_flowlabel_init(void);
-void ip6_flowlabel_cleanup(void);
+extern struct ip6_flowlabel *fl6_sock_lookup(struct sock *sk, __be32 label);
+extern struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions * opt_space,
+ struct ip6_flowlabel * fl,
+ struct ipv6_txoptions * fopt);
+extern void fl6_free_socklist(struct sock *sk);
+extern int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen);
+extern int ip6_flowlabel_init(void);
+extern void ip6_flowlabel_cleanup(void);
static inline void fl6_sock_release(struct ip6_flowlabel *fl)
{
@@ -260,7 +259,7 @@ static inline void fl6_sock_release(struct ip6_flowlabel *fl)
atomic_dec(&fl->users);
}
-void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info);
+extern void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info);
int icmpv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6,
struct icmp6hdr *thdr, int len);
@@ -268,21 +267,19 @@ int icmpv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6,
struct dst_entry *icmpv6_route_lookup(struct net *net, struct sk_buff *skb,
struct sock *sk, struct flowi6 *fl6);
-int ip6_ra_control(struct sock *sk, int sel);
+extern int ip6_ra_control(struct sock *sk, int sel);
-int ipv6_parse_hopopts(struct sk_buff *skb);
+extern int ipv6_parse_hopopts(struct sk_buff *skb);
-struct ipv6_txoptions *ipv6_dup_options(struct sock *sk,
- struct ipv6_txoptions *opt);
-struct ipv6_txoptions *ipv6_renew_options(struct sock *sk,
- struct ipv6_txoptions *opt,
- int newtype,
- struct ipv6_opt_hdr __user *newopt,
- int newoptlen);
+extern struct ipv6_txoptions * ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt);
+extern struct ipv6_txoptions * ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,
+ int newtype,
+ struct ipv6_opt_hdr __user *newopt,
+ int newoptlen);
struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space,
struct ipv6_txoptions *opt);
-bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb);
+extern bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb);
static inline bool ipv6_accept_ra(struct inet6_dev *idev)
{
@@ -309,7 +306,7 @@ static inline int ip6_frag_mem(struct net *net)
#define IPV6_FRAG_LOW_THRESH (3 * 1024*1024) /* 3145728 */
#define IPV6_FRAG_TIMEOUT (60 * HZ) /* 60 seconds */
-int __ipv6_addr_type(const struct in6_addr *addr);
+extern int __ipv6_addr_type(const struct in6_addr *addr);
static inline int ipv6_addr_type(const struct in6_addr *addr)
{
return __ipv6_addr_type(addr) & 0xffff;
@@ -540,14 +537,14 @@ static inline u32 ipv6_addr_hash(const struct in6_addr *a)
}
/* more secured version of ipv6_addr_hash() */
-static inline u32 __ipv6_addr_jhash(const struct in6_addr *a, const u32 initval)
+static inline u32 ipv6_addr_jhash(const struct in6_addr *a)
{
u32 v = (__force u32)a->s6_addr32[0] ^ (__force u32)a->s6_addr32[1];
return jhash_3words(v,
(__force u32)a->s6_addr32[2],
(__force u32)a->s6_addr32[3],
- initval);
+ ipv6_hash_secret);
}
static inline bool ipv6_addr_loopback(const struct in6_addr *a)
@@ -659,9 +656,9 @@ static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_add
return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr));
}
-void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt);
+extern void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt);
-int ip6_dst_hoplimit(struct dst_entry *dst);
+extern int ip6_dst_hoplimit(struct dst_entry *dst);
/*
* Header manipulation
@@ -685,65 +682,83 @@ static inline __be32 ip6_flowinfo(const struct ipv6hdr *hdr)
* rcv function (called from netdevice level)
*/
-int ipv6_rcv(struct sk_buff *skb, struct net_device *dev,
- struct packet_type *pt, struct net_device *orig_dev);
+extern int ipv6_rcv(struct sk_buff *skb,
+ struct net_device *dev,
+ struct packet_type *pt,
+ struct net_device *orig_dev);
-int ip6_rcv_finish(struct sk_buff *skb);
+extern int ip6_rcv_finish(struct sk_buff *skb);
/*
* upper-layer output functions
*/
-int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
- struct ipv6_txoptions *opt, int tclass);
-
-int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr);
-
-int ip6_append_data(struct sock *sk,
- int getfrag(void *from, char *to, int offset, int len,
- int odd, struct sk_buff *skb),
- void *from, int length, int transhdrlen, int hlimit,
- int tclass, struct ipv6_txoptions *opt, struct flowi6 *fl6,
- struct rt6_info *rt, unsigned int flags, int dontfrag);
-
-int ip6_push_pending_frames(struct sock *sk);
-
-void ip6_flush_pending_frames(struct sock *sk);
-
-int ip6_dst_lookup(struct sock *sk, struct dst_entry **dst, struct flowi6 *fl6);
-struct dst_entry *ip6_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6,
- const struct in6_addr *final_dst,
- bool can_sleep);
-struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6,
- const struct in6_addr *final_dst,
- bool can_sleep);
-struct dst_entry *ip6_blackhole_route(struct net *net,
- struct dst_entry *orig_dst);
+extern int ip6_xmit(struct sock *sk,
+ struct sk_buff *skb,
+ struct flowi6 *fl6,
+ struct ipv6_txoptions *opt,
+ int tclass);
+
+extern int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr);
+
+extern int ip6_append_data(struct sock *sk,
+ int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb),
+ void *from,
+ int length,
+ int transhdrlen,
+ int hlimit,
+ int tclass,
+ struct ipv6_txoptions *opt,
+ struct flowi6 *fl6,
+ struct rt6_info *rt,
+ unsigned int flags,
+ int dontfrag);
+
+extern int ip6_push_pending_frames(struct sock *sk);
+
+extern void ip6_flush_pending_frames(struct sock *sk);
+
+extern int ip6_dst_lookup(struct sock *sk,
+ struct dst_entry **dst,
+ struct flowi6 *fl6);
+extern struct dst_entry * ip6_dst_lookup_flow(struct sock *sk,
+ struct flowi6 *fl6,
+ const struct in6_addr *final_dst,
+ bool can_sleep);
+extern struct dst_entry * ip6_sk_dst_lookup_flow(struct sock *sk,
+ struct flowi6 *fl6,
+ const struct in6_addr *final_dst,
+ bool can_sleep);
+extern struct dst_entry * ip6_blackhole_route(struct net *net,
+ struct dst_entry *orig_dst);
/*
* skb processing functions
*/
-int ip6_output(struct sk_buff *skb);
-int ip6_forward(struct sk_buff *skb);
-int ip6_input(struct sk_buff *skb);
-int ip6_mc_input(struct sk_buff *skb);
+extern int ip6_output(struct sk_buff *skb);
+extern int ip6_forward(struct sk_buff *skb);
+extern int ip6_input(struct sk_buff *skb);
+extern int ip6_mc_input(struct sk_buff *skb);
-int __ip6_local_out(struct sk_buff *skb);
-int ip6_local_out(struct sk_buff *skb);
+extern int __ip6_local_out(struct sk_buff *skb);
+extern int ip6_local_out(struct sk_buff *skb);
/*
* Extension header (options) processing
*/
-void ipv6_push_nfrag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt,
- u8 *proto, struct in6_addr **daddr_p);
-void ipv6_push_frag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt,
- u8 *proto);
+extern void ipv6_push_nfrag_opts(struct sk_buff *skb,
+ struct ipv6_txoptions *opt,
+ u8 *proto,
+ struct in6_addr **daddr_p);
+extern void ipv6_push_frag_opts(struct sk_buff *skb,
+ struct ipv6_txoptions *opt,
+ u8 *proto);
-int ipv6_skip_exthdr(const struct sk_buff *, int start, u8 *nexthdrp,
- __be16 *frag_offp);
+extern int ipv6_skip_exthdr(const struct sk_buff *, int start,
+ u8 *nexthdrp, __be16 *frag_offp);
-bool ipv6_ext_hdr(u8 nexthdr);
+extern bool ipv6_ext_hdr(u8 nexthdr);
enum {
IP6_FH_F_FRAG = (1 << 0),
@@ -752,46 +767,57 @@ enum {
};
/* find specified header and get offset to it */
-int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset, int target,
- unsigned short *fragoff, int *fragflg);
+extern int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
+ int target, unsigned short *fragoff, int *fragflg);
-int ipv6_find_tlv(struct sk_buff *skb, int offset, int type);
+extern int ipv6_find_tlv(struct sk_buff *skb, int offset, int type);
-struct in6_addr *fl6_update_dst(struct flowi6 *fl6,
- const struct ipv6_txoptions *opt,
- struct in6_addr *orig);
+extern struct in6_addr *fl6_update_dst(struct flowi6 *fl6,
+ const struct ipv6_txoptions *opt,
+ struct in6_addr *orig);
/*
* socket options (ipv6_sockglue.c)
*/
-int ipv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, unsigned int optlen);
-int ipv6_getsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int __user *optlen);
-int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, unsigned int optlen);
-int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int __user *optlen);
-
-int ip6_datagram_connect(struct sock *sk, struct sockaddr *addr, int addr_len);
-
-int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len,
- int *addr_len);
-int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len,
- int *addr_len);
-void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port,
- u32 info, u8 *payload);
-void ipv6_local_error(struct sock *sk, int err, struct flowi6 *fl6, u32 info);
-void ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu);
-
-int inet6_release(struct socket *sock);
-int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len);
-int inet6_getname(struct socket *sock, struct sockaddr *uaddr, int *uaddr_len,
- int peer);
-int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
-
-int inet6_hash_connect(struct inet_timewait_death_row *death_row,
+extern int ipv6_setsockopt(struct sock *sk, int level,
+ int optname,
+ char __user *optval,
+ unsigned int optlen);
+extern int ipv6_getsockopt(struct sock *sk, int level,
+ int optname,
+ char __user *optval,
+ int __user *optlen);
+extern int compat_ipv6_setsockopt(struct sock *sk,
+ int level,
+ int optname,
+ char __user *optval,
+ unsigned int optlen);
+extern int compat_ipv6_getsockopt(struct sock *sk,
+ int level,
+ int optname,
+ char __user *optval,
+ int __user *optlen);
+
+extern int ip6_datagram_connect(struct sock *sk,
+ struct sockaddr *addr, int addr_len);
+
+extern int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len);
+extern int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len);
+extern void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port,
+ u32 info, u8 *payload);
+extern void ipv6_local_error(struct sock *sk, int err, struct flowi6 *fl6, u32 info);
+extern void ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu);
+
+extern int inet6_release(struct socket *sock);
+extern int inet6_bind(struct socket *sock, struct sockaddr *uaddr,
+ int addr_len);
+extern int inet6_getname(struct socket *sock, struct sockaddr *uaddr,
+ int *uaddr_len, int peer);
+extern int inet6_ioctl(struct socket *sock, unsigned int cmd,
+ unsigned long arg);
+
+extern int inet6_hash_connect(struct inet_timewait_death_row *death_row,
struct sock *sk);
/*
@@ -803,27 +829,30 @@ extern const struct proto_ops inet6_dgram_ops;
struct group_source_req;
struct group_filter;
-int ip6_mc_source(int add, int omode, struct sock *sk,
- struct group_source_req *pgsr);
-int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf);
-int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
- struct group_filter __user *optval, int __user *optlen);
+extern int ip6_mc_source(int add, int omode, struct sock *sk,
+ struct group_source_req *pgsr);
+extern int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf);
+extern int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
+ struct group_filter __user *optval,
+ int __user *optlen);
+extern unsigned int inet6_hash_frag(__be32 id, const struct in6_addr *saddr,
+ const struct in6_addr *daddr, u32 rnd);
#ifdef CONFIG_PROC_FS
-int ac6_proc_init(struct net *net);
-void ac6_proc_exit(struct net *net);
-int raw6_proc_init(void);
-void raw6_proc_exit(void);
-int tcp6_proc_init(struct net *net);
-void tcp6_proc_exit(struct net *net);
-int udp6_proc_init(struct net *net);
-void udp6_proc_exit(struct net *net);
-int udplite6_proc_init(void);
-void udplite6_proc_exit(void);
-int ipv6_misc_proc_init(void);
-void ipv6_misc_proc_exit(void);
-int snmp6_register_dev(struct inet6_dev *idev);
-int snmp6_unregister_dev(struct inet6_dev *idev);
+extern int ac6_proc_init(struct net *net);
+extern void ac6_proc_exit(struct net *net);
+extern int raw6_proc_init(void);
+extern void raw6_proc_exit(void);
+extern int tcp6_proc_init(struct net *net);
+extern void tcp6_proc_exit(struct net *net);
+extern int udp6_proc_init(struct net *net);
+extern void udp6_proc_exit(struct net *net);
+extern int udplite6_proc_init(void);
+extern void udplite6_proc_exit(void);
+extern int ipv6_misc_proc_init(void);
+extern void ipv6_misc_proc_exit(void);
+extern int snmp6_register_dev(struct inet6_dev *idev);
+extern int snmp6_unregister_dev(struct inet6_dev *idev);
#else
static inline int ac6_proc_init(struct net *net) { return 0; }
@@ -836,10 +865,10 @@ static inline int snmp6_unregister_dev(struct inet6_dev *idev) { return 0; }
extern struct ctl_table ipv6_route_table_template[];
extern struct ctl_table ipv6_icmp_table_template[];
-struct ctl_table *ipv6_icmp_sysctl_init(struct net *net);
-struct ctl_table *ipv6_route_sysctl_init(struct net *net);
-int ipv6_sysctl_register(void);
-void ipv6_sysctl_unregister(void);
+extern struct ctl_table *ipv6_icmp_sysctl_init(struct net *net);
+extern struct ctl_table *ipv6_route_sysctl_init(struct net *net);
+extern int ipv6_sysctl_register(void);
+extern void ipv6_sysctl_unregister(void);
#endif
#endif /* _NET_IPV6_H */
generated by cgit v0.10.2 at 2024-10-03 23:33:50 (GMT)