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-rw-r--r--include/net/ipv6.h483
1 files changed, 302 insertions, 181 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 5af66b26ebd..574337fe72d 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -15,6 +15,7 @@
#include <linux/ipv6.h>
#include <linux/hardirq.h>
+#include <linux/jhash.h>
#include <net/if_inet6.h>
#include <net/ndisc.h>
#include <net/flow.h>
@@ -40,6 +41,7 @@
#define NEXTHDR_ICMP 58 /* ICMP for IPv6. */
#define NEXTHDR_NONE 59 /* No next header */
#define NEXTHDR_DEST 60 /* Destination options header. */
+#define NEXTHDR_SCTP 132 /* SCTP message. */
#define NEXTHDR_MOBILITY 135 /* Mobility header. */
#define NEXTHDR_MAX 255
@@ -108,7 +110,11 @@ struct frag_hdr {
__be32 identification;
};
-#define IP6_MF 0x0001
+#define IP6_MF 0x0001
+#define IP6_OFFSET 0xFFF8
+
+#define IP6_REPLY_MARK(net, mark) \
+ ((net)->ipv6.sysctl.fwmark_reflect ? (mark) : 0)
#include <net/sock.h>
@@ -216,12 +222,13 @@ struct ipv6_txoptions {
};
struct ip6_flowlabel {
- struct ip6_flowlabel *next;
+ struct ip6_flowlabel __rcu *next;
__be32 label;
atomic_t users;
struct in6_addr dst;
struct ipv6_txoptions *opt;
unsigned long linger;
+ struct rcu_head rcu;
u8 share;
union {
struct pid *pid;
@@ -234,20 +241,25 @@ struct ip6_flowlabel {
#define IPV6_FLOWINFO_MASK cpu_to_be32(0x0FFFFFFF)
#define IPV6_FLOWLABEL_MASK cpu_to_be32(0x000FFFFF)
+#define IPV6_TCLASS_MASK (IPV6_FLOWINFO_MASK & ~IPV6_FLOWLABEL_MASK)
+#define IPV6_TCLASS_SHIFT 20
struct ipv6_fl_socklist {
- struct ipv6_fl_socklist *next;
- struct ip6_flowlabel *fl;
+ struct ipv6_fl_socklist __rcu *next;
+ struct ip6_flowlabel *fl;
+ struct rcu_head rcu;
};
-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);
+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 flags);
+int ip6_flowlabel_init(void);
+void ip6_flowlabel_cleanup(void);
static inline void fl6_sock_release(struct ip6_flowlabel *fl)
{
@@ -255,21 +267,26 @@ static inline void fl6_sock_release(struct ip6_flowlabel *fl)
atomic_dec(&fl->users);
}
-extern void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info);
+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);
-extern int ip6_ra_control(struct sock *sk, int sel);
+int ip6_ra_control(struct sock *sk, int sel);
-extern int ipv6_parse_hopopts(struct sk_buff *skb);
+int ipv6_parse_hopopts(struct sk_buff *skb);
-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_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);
struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space,
struct ipv6_txoptions *opt);
-extern bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb);
+bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb);
static inline bool ipv6_accept_ra(struct inet6_dev *idev)
{
@@ -288,15 +305,15 @@ static inline int ip6_frag_nqueues(struct net *net)
static inline int ip6_frag_mem(struct net *net)
{
- return atomic_read(&net->ipv6.frags.mem);
+ return sum_frag_mem_limit(&net->ipv6.frags);
}
#endif
-#define IPV6_FRAG_HIGH_THRESH (256 * 1024) /* 262144 */
-#define IPV6_FRAG_LOW_THRESH (192 * 1024) /* 196608 */
+#define IPV6_FRAG_HIGH_THRESH (4 * 1024*1024) /* 4194304 */
+#define IPV6_FRAG_LOW_THRESH (3 * 1024*1024) /* 3145728 */
#define IPV6_FRAG_TIMEOUT (60 * HZ) /* 60 seconds */
-extern int __ipv6_addr_type(const struct in6_addr *addr);
+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;
@@ -317,6 +334,18 @@ static inline int ipv6_addr_src_scope(const struct in6_addr *addr)
return __ipv6_addr_src_scope(__ipv6_addr_type(addr));
}
+static inline bool __ipv6_addr_needs_scope_id(int type)
+{
+ return type & IPV6_ADDR_LINKLOCAL ||
+ (type & IPV6_ADDR_MULTICAST &&
+ (type & (IPV6_ADDR_LOOPBACK|IPV6_ADDR_LINKLOCAL)));
+}
+
+static inline __u32 ipv6_iface_scope_id(const struct in6_addr *addr, int iface)
+{
+ return __ipv6_addr_needs_scope_id(__ipv6_addr_type(addr)) ? iface : 0;
+}
+
static inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct in6_addr *a2)
{
return memcmp(a1, a2, sizeof(struct in6_addr));
@@ -355,14 +384,32 @@ static inline void ipv6_addr_prefix(struct in6_addr *pfx,
pfx->s6_addr[o] = addr->s6_addr[o] & (0xff00 >> b);
}
+static inline void __ipv6_addr_set_half(__be32 *addr,
+ __be32 wh, __be32 wl)
+{
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
+#if defined(__BIG_ENDIAN)
+ if (__builtin_constant_p(wh) && __builtin_constant_p(wl)) {
+ *(__force u64 *)addr = ((__force u64)(wh) << 32 | (__force u64)(wl));
+ return;
+ }
+#elif defined(__LITTLE_ENDIAN)
+ if (__builtin_constant_p(wl) && __builtin_constant_p(wh)) {
+ *(__force u64 *)addr = ((__force u64)(wl) << 32 | (__force u64)(wh));
+ return;
+ }
+#endif
+#endif
+ addr[0] = wh;
+ addr[1] = wl;
+}
+
static inline void ipv6_addr_set(struct in6_addr *addr,
__be32 w1, __be32 w2,
__be32 w3, __be32 w4)
{
- addr->s6_addr32[0] = w1;
- addr->s6_addr32[1] = w2;
- addr->s6_addr32[2] = w3;
- addr->s6_addr32[3] = w4;
+ __ipv6_addr_set_half(&addr->s6_addr32[0], w1, w2);
+ __ipv6_addr_set_half(&addr->s6_addr32[2], w3, w4);
}
static inline bool ipv6_addr_equal(const struct in6_addr *a1,
@@ -381,9 +428,37 @@ static inline bool ipv6_addr_equal(const struct in6_addr *a1,
#endif
}
-static inline bool __ipv6_prefix_equal(const __be32 *a1, const __be32 *a2,
- unsigned int prefixlen)
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
+static inline bool __ipv6_prefix_equal64_half(const __be64 *a1,
+ const __be64 *a2,
+ unsigned int len)
+{
+ if (len && ((*a1 ^ *a2) & cpu_to_be64((~0UL) << (64 - len))))
+ return false;
+ return true;
+}
+
+static inline bool ipv6_prefix_equal(const struct in6_addr *addr1,
+ const struct in6_addr *addr2,
+ unsigned int prefixlen)
{
+ const __be64 *a1 = (const __be64 *)addr1;
+ const __be64 *a2 = (const __be64 *)addr2;
+
+ if (prefixlen >= 64) {
+ if (a1[0] ^ a2[0])
+ return false;
+ return __ipv6_prefix_equal64_half(a1 + 1, a2 + 1, prefixlen - 64);
+ }
+ return __ipv6_prefix_equal64_half(a1, a2, prefixlen);
+}
+#else
+static inline bool ipv6_prefix_equal(const struct in6_addr *addr1,
+ const struct in6_addr *addr2,
+ unsigned int prefixlen)
+{
+ const __be32 *a1 = addr1->s6_addr32;
+ const __be32 *a2 = addr2->s6_addr32;
unsigned int pdw, pbi;
/* check complete u32 in prefix */
@@ -398,14 +473,7 @@ static inline bool __ipv6_prefix_equal(const __be32 *a1, const __be32 *a2,
return true;
}
-
-static inline bool ipv6_prefix_equal(const struct in6_addr *a1,
- const struct in6_addr *a2,
- unsigned int prefixlen)
-{
- return __ipv6_prefix_equal(a1->s6_addr32, a2->s6_addr32,
- prefixlen);
-}
+#endif
struct inet_frag_queue;
@@ -424,6 +492,7 @@ struct ip6_create_arg {
u32 user;
const struct in6_addr *src;
const struct in6_addr *dst;
+ u8 ecn;
};
void ip6_frag_init(struct inet_frag_queue *q, void *a);
@@ -443,6 +512,7 @@ struct frag_queue {
int iif;
unsigned int csum;
__u16 nhoffset;
+ u8 ecn;
};
void ip6_expire_frag_queue(struct net *net, struct frag_queue *fq,
@@ -473,16 +543,38 @@ static inline u32 ipv6_addr_hash(const struct in6_addr *a)
#endif
}
+/* more secured version of ipv6_addr_hash() */
+static inline u32 __ipv6_addr_jhash(const struct in6_addr *a, const u32 initval)
+{
+ 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);
+}
+
static inline bool ipv6_addr_loopback(const struct in6_addr *a)
{
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
+ const unsigned long *ul = (const unsigned long *)a;
+
+ return (ul[0] | (ul[1] ^ cpu_to_be64(1))) == 0UL;
+#else
return (a->s6_addr32[0] | a->s6_addr32[1] |
a->s6_addr32[2] | (a->s6_addr32[3] ^ htonl(1))) == 0;
+#endif
}
static inline bool ipv6_addr_v4mapped(const struct in6_addr *a)
{
- return (a->s6_addr32[0] | a->s6_addr32[1] |
- (a->s6_addr32[2] ^ htonl(0x0000ffff))) == 0;
+ return (
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
+ *(__be64 *)a |
+#else
+ (a->s6_addr32[0] | a->s6_addr32[1]) |
+#endif
+ (a->s6_addr32[2] ^ htonl(0x0000ffff))) == 0UL;
}
/*
@@ -494,6 +586,11 @@ static inline bool ipv6_addr_orchid(const struct in6_addr *a)
return (a->s6_addr32[0] & htonl(0xfffffff0)) == htonl(0x20010010);
}
+static inline bool ipv6_addr_is_multicast(const struct in6_addr *addr)
+{
+ return (addr->s6_addr32[0] & htonl(0xFF000000)) == htonl(0xFF000000);
+}
+
static inline void ipv6_addr_set_v4mapped(const __be32 addr,
struct in6_addr *v4mapped)
{
@@ -507,7 +604,7 @@ static inline void ipv6_addr_set_v4mapped(const __be32 addr,
* find the first different bit between two addresses
* length of address must be a multiple of 32bits
*/
-static inline int __ipv6_addr_diff(const void *token1, const void *token2, int addrlen)
+static inline int __ipv6_addr_diff32(const void *token1, const void *token2, int addrlen)
{
const __be32 *a1 = token1, *a2 = token2;
int i;
@@ -539,13 +636,77 @@ static inline int __ipv6_addr_diff(const void *token1, const void *token2, int a
return addrlen << 5;
}
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
+static inline int __ipv6_addr_diff64(const void *token1, const void *token2, int addrlen)
+{
+ const __be64 *a1 = token1, *a2 = token2;
+ int i;
+
+ addrlen >>= 3;
+
+ for (i = 0; i < addrlen; i++) {
+ __be64 xb = a1[i] ^ a2[i];
+ if (xb)
+ return i * 64 + 63 - __fls(be64_to_cpu(xb));
+ }
+
+ return addrlen << 6;
+}
+#endif
+
+static inline int __ipv6_addr_diff(const void *token1, const void *token2, int addrlen)
+{
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
+ if (__builtin_constant_p(addrlen) && !(addrlen & 7))
+ return __ipv6_addr_diff64(token1, token2, addrlen);
+#endif
+ return __ipv6_addr_diff32(token1, token2, addrlen);
+}
+
static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_addr *a2)
{
return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr));
}
-extern void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt);
+int ip6_dst_hoplimit(struct dst_entry *dst);
+
+static inline int ip6_sk_dst_hoplimit(struct ipv6_pinfo *np, struct flowi6 *fl6,
+ struct dst_entry *dst)
+{
+ int hlimit;
+
+ if (ipv6_addr_is_multicast(&fl6->daddr))
+ hlimit = np->mcast_hops;
+ else
+ hlimit = np->hop_limit;
+ if (hlimit < 0)
+ hlimit = ip6_dst_hoplimit(dst);
+ return hlimit;
+}
+
+/*
+ * Header manipulation
+ */
+static inline void ip6_flow_hdr(struct ipv6hdr *hdr, unsigned int tclass,
+ __be32 flowlabel)
+{
+ *(__be32 *)hdr = htonl(0x60000000 | (tclass << 20)) | flowlabel;
+}
+
+static inline __be32 ip6_flowinfo(const struct ipv6hdr *hdr)
+{
+ return *(__be32 *)hdr & IPV6_FLOWINFO_MASK;
+}
+
+static inline __be32 ip6_flowlabel(const struct ipv6hdr *hdr)
+{
+ return *(__be32 *)hdr & IPV6_FLOWLABEL_MASK;
+}
+static inline u8 ip6_tclass(__be32 flowinfo)
+{
+ return ntohl(flowinfo & IPV6_TCLASS_MASK) >> IPV6_TCLASS_SHIFT;
+}
/*
* Prototypes exported by ipv6
*/
@@ -554,90 +715,63 @@ extern void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt);
* rcv function (called from netdevice level)
*/
-extern int ipv6_rcv(struct sk_buff *skb,
- struct net_device *dev,
- struct packet_type *pt,
- struct net_device *orig_dev);
+int ipv6_rcv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *pt, struct net_device *orig_dev);
-extern int ip6_rcv_finish(struct sk_buff *skb);
+int ip6_rcv_finish(struct sk_buff *skb);
/*
* upper-layer output functions
*/
-extern int ip6_xmit(struct sock *sk,
- struct sk_buff *skb,
- struct flowi6 *fl6,
- struct ipv6_txoptions *opt,
- int tclass);
-
-extern int ip6_nd_hdr(struct sock *sk,
- struct sk_buff *skb,
- struct net_device *dev,
- const struct in6_addr *saddr,
- const struct in6_addr *daddr,
- int proto, int len);
-
-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);
+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);
+struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6,
+ const struct in6_addr *final_dst);
+struct dst_entry *ip6_blackhole_route(struct net *net,
+ struct dst_entry *orig_dst);
/*
* skb processing functions
*/
-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_output(struct sock *sk, 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_local_out(struct sk_buff *skb);
-extern int ip6_local_out(struct sk_buff *skb);
+int __ip6_local_out(struct sk_buff *skb);
+int ip6_local_out(struct sk_buff *skb);
/*
* Extension header (options) processing
*/
-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);
+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 int ipv6_skip_exthdr(const struct sk_buff *, int start,
- u8 *nexthdrp, __be16 *frag_offp);
+int ipv6_skip_exthdr(const struct sk_buff *, int start, u8 *nexthdrp,
+ __be16 *frag_offp);
-extern bool ipv6_ext_hdr(u8 nexthdr);
+bool ipv6_ext_hdr(u8 nexthdr);
enum {
IP6_FH_F_FRAG = (1 << 0),
@@ -646,57 +780,48 @@ enum {
};
/* find specified header and get offset to it */
-extern int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
- int target, unsigned short *fragoff, int *fragflg);
+int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset, int target,
+ unsigned short *fragoff, int *fragflg);
-extern int ipv6_find_tlv(struct sk_buff *skb, int offset, int type);
+int ipv6_find_tlv(struct sk_buff *skb, int offset, int type);
-extern struct in6_addr *fl6_update_dst(struct flowi6 *fl6,
- const struct ipv6_txoptions *opt,
- struct in6_addr *orig);
+struct in6_addr *fl6_update_dst(struct flowi6 *fl6,
+ const struct ipv6_txoptions *opt,
+ struct in6_addr *orig);
/*
* socket options (ipv6_sockglue.c)
*/
-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,
+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 ip6_datagram_connect_v6_only(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,
struct sock *sk);
/*
@@ -708,30 +833,27 @@ extern const struct proto_ops inet6_dgram_ops;
struct group_source_req;
struct group_filter;
-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);
+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);
#ifdef CONFIG_PROC_FS
-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);
+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);
#else
static inline int ac6_proc_init(struct net *net) { return 0; }
@@ -741,13 +863,12 @@ static inline int snmp6_unregister_dev(struct inet6_dev *idev) { return 0; }
#endif
#ifdef CONFIG_SYSCTL
-extern ctl_table ipv6_route_table_template[];
-extern ctl_table ipv6_icmp_table_template[];
+extern struct ctl_table ipv6_route_table_template[];
-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);
+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);
#endif
#endif /* _NET_IPV6_H */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 01:13:39 +0000