#include <net/protocol.h>
#include <net/ip.h>
#include <net/ipv6.h>
+#include <net/route.h>
#include <net/sctp/sctp.h>
#include <net/addrconf.h>
#include <net/inet_common.h>
/* Global data structures. */
struct sctp_globals sctp_globals;
struct proc_dir_entry *proc_net_sctp;
-DEFINE_SNMP_STAT(struct sctp_mib, sctp_statistics);
+DEFINE_SNMP_STAT(struct sctp_mib, sctp_statistics) __read_mostly;
struct idr sctp_assocs_id;
DEFINE_SPINLOCK(sctp_assocs_id_lock);
static struct sctp_af *sctp_af_v4_specific;
static struct sctp_af *sctp_af_v6_specific;
-kmem_cache_t *sctp_chunk_cachep;
-kmem_cache_t *sctp_bucket_cachep;
+kmem_cache_t *sctp_chunk_cachep __read_mostly;
+kmem_cache_t *sctp_bucket_cachep __read_mostly;
extern int sctp_snmp_proc_init(void);
extern int sctp_snmp_proc_exit(void);
struct sctp_sockaddr_entry *addr;
rcu_read_lock();
- if ((in_dev = __in_dev_get(dev)) == NULL) {
+ if ((in_dev = __in_dev_get_rcu(dev)) == NULL) {
rcu_read_unlock();
return;
}
/* Copy the local addresses which are valid for 'scope' into 'bp'. */
int sctp_copy_local_addr_list(struct sctp_bind_addr *bp, sctp_scope_t scope,
- int gfp, int copy_flags)
+ gfp_t gfp, int copy_flags)
{
struct sctp_sockaddr_entry *addr;
int error = 0;
* Return 0 - If the address is a non-unicast or an illegal address.
* Return 1 - If the address is a unicast.
*/
-static int sctp_v4_addr_valid(union sctp_addr *addr, struct sctp_sock *sp)
+static int sctp_v4_addr_valid(union sctp_addr *addr,
+ struct sctp_sock *sp,
+ const struct sk_buff *skb)
{
/* Is this a non-unicast address or a unusable SCTP address? */
if (IS_IPV4_UNUSABLE_ADDRESS(&addr->v4.sin_addr.s_addr))
return 0;
+ /* Is this a broadcast address? */
+ if (skb && ((struct rtable *)skb->dst)->rt_flags & RTCF_BROADCAST)
+ return 0;
+
return 1;
}
{
int ret = inet_addr_type(addr->v4.sin_addr.s_addr);
- /* FIXME: ip_nonlocal_bind sysctl support. */
- if (addr->v4.sin_addr.s_addr != INADDR_ANY && ret != RTN_LOCAL)
+ if (addr->v4.sin_addr.s_addr != INADDR_ANY &&
+ ret != RTN_LOCAL &&
+ !sp->inet.freebind &&
+ !sysctl_ip_nonlocal_bind)
return 0;
+
return 1;
}
{
struct rtable *rt = (struct rtable *)dst;
+ if (!asoc)
+ return;
+
if (rt) {
saddr->v4.sin_family = AF_INET;
saddr->v4.sin_port = asoc->base.bind_addr.port;
static struct sock *sctp_v4_create_accept_sk(struct sock *sk,
struct sctp_association *asoc)
{
- struct sock *newsk;
struct inet_sock *inet = inet_sk(sk);
struct inet_sock *newinet;
+ struct sock *newsk = sk_alloc(PF_INET, GFP_KERNEL, sk->sk_prot, 1);
- newsk = sk_alloc(PF_INET, GFP_KERNEL, sk->sk_prot->slab_obj_size,
- sk->sk_prot->slab);
if (!newsk)
goto out;
sock_init_data(NULL, newsk);
- sk_set_owner(newsk, THIS_MODULE);
newsk->sk_type = SOCK_STREAM;
- newsk->sk_prot = sk->sk_prot;
newsk->sk_no_check = sk->sk_no_check;
newsk->sk_reuse = sk->sk_reuse;
newsk->sk_shutdown = sk->sk_shutdown;
newsk->sk_destruct = inet_sock_destruct;
- newsk->sk_zapped = 0;
newsk->sk_family = PF_INET;
newsk->sk_protocol = IPPROTO_SCTP;
newsk->sk_backlog_rcv = sk->sk_prot->backlog_rcv;
+ sock_reset_flag(newsk, SOCK_ZAPPED);
newinet = inet_sk(newsk);
newinet->mc_index = 0;
newinet->mc_list = NULL;
-#ifdef INET_REFCNT_DEBUG
- atomic_inc(&inet_sock_nr);
-#endif
+ sk_refcnt_debug_inc(newsk);
if (newsk->sk_prot->init(newsk)) {
sk_common_release(newsk);
};
/* Socket operations. */
-static struct proto_ops inet_seqpacket_ops = {
- .family = PF_INET,
- .owner = THIS_MODULE,
- .release = inet_release, /* Needs to be wrapped... */
- .bind = inet_bind,
- .connect = inet_dgram_connect,
- .socketpair = sock_no_socketpair,
- .accept = inet_accept,
- .getname = inet_getname, /* Semantics are different. */
- .poll = sctp_poll,
- .ioctl = inet_ioctl,
- .listen = sctp_inet_listen,
- .shutdown = inet_shutdown, /* Looks harmless. */
- .setsockopt = sock_common_setsockopt, /* IP_SOL IP_OPTION is a problem. */
- .getsockopt = sock_common_getsockopt,
- .sendmsg = inet_sendmsg,
- .recvmsg = sock_common_recvmsg,
- .mmap = sock_no_mmap,
- .sendpage = sock_no_sendpage,
+static const struct proto_ops inet_seqpacket_ops = {
+ .family = PF_INET,
+ .owner = THIS_MODULE,
+ .release = inet_release, /* Needs to be wrapped... */
+ .bind = inet_bind,
+ .connect = inet_dgram_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = inet_accept,
+ .getname = inet_getname, /* Semantics are different. */
+ .poll = sctp_poll,
+ .ioctl = inet_ioctl,
+ .listen = sctp_inet_listen,
+ .shutdown = inet_shutdown, /* Looks harmless. */
+ .setsockopt = sock_common_setsockopt, /* IP_SOL IP_OPTION is a problem */
+ .getsockopt = sock_common_getsockopt,
+ .sendmsg = inet_sendmsg,
+ .recvmsg = sock_common_recvmsg,
+ .mmap = sock_no_mmap,
+ .sendpage = sock_no_sendpage,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_sock_common_setsockopt,
+ .compat_getsockopt = compat_sock_common_getsockopt,
+#endif
};
/* Registration with AF_INET family. */
/* IPv4 address related functions. */
static struct sctp_af sctp_ipv4_specific = {
- .sctp_xmit = sctp_v4_xmit,
- .setsockopt = ip_setsockopt,
- .getsockopt = ip_getsockopt,
- .get_dst = sctp_v4_get_dst,
- .get_saddr = sctp_v4_get_saddr,
- .copy_addrlist = sctp_v4_copy_addrlist,
- .from_skb = sctp_v4_from_skb,
- .from_sk = sctp_v4_from_sk,
- .to_sk_saddr = sctp_v4_to_sk_saddr,
- .to_sk_daddr = sctp_v4_to_sk_daddr,
- .from_addr_param= sctp_v4_from_addr_param,
- .to_addr_param = sctp_v4_to_addr_param,
- .dst_saddr = sctp_v4_dst_saddr,
- .cmp_addr = sctp_v4_cmp_addr,
- .addr_valid = sctp_v4_addr_valid,
- .inaddr_any = sctp_v4_inaddr_any,
- .is_any = sctp_v4_is_any,
- .available = sctp_v4_available,
- .scope = sctp_v4_scope,
- .skb_iif = sctp_v4_skb_iif,
- .is_ce = sctp_v4_is_ce,
- .seq_dump_addr = sctp_v4_seq_dump_addr,
- .net_header_len = sizeof(struct iphdr),
- .sockaddr_len = sizeof(struct sockaddr_in),
- .sa_family = AF_INET,
+ .sa_family = AF_INET,
+ .sctp_xmit = sctp_v4_xmit,
+ .setsockopt = ip_setsockopt,
+ .getsockopt = ip_getsockopt,
+ .get_dst = sctp_v4_get_dst,
+ .get_saddr = sctp_v4_get_saddr,
+ .copy_addrlist = sctp_v4_copy_addrlist,
+ .from_skb = sctp_v4_from_skb,
+ .from_sk = sctp_v4_from_sk,
+ .to_sk_saddr = sctp_v4_to_sk_saddr,
+ .to_sk_daddr = sctp_v4_to_sk_daddr,
+ .from_addr_param = sctp_v4_from_addr_param,
+ .to_addr_param = sctp_v4_to_addr_param,
+ .dst_saddr = sctp_v4_dst_saddr,
+ .cmp_addr = sctp_v4_cmp_addr,
+ .addr_valid = sctp_v4_addr_valid,
+ .inaddr_any = sctp_v4_inaddr_any,
+ .is_any = sctp_v4_is_any,
+ .available = sctp_v4_available,
+ .scope = sctp_v4_scope,
+ .skb_iif = sctp_v4_skb_iif,
+ .is_ce = sctp_v4_is_ce,
+ .seq_dump_addr = sctp_v4_seq_dump_addr,
+ .net_header_len = sizeof(struct iphdr),
+ .sockaddr_len = sizeof(struct sockaddr_in),
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_ip_setsockopt,
+ .compat_getsockopt = compat_ip_getsockopt,
+#endif
};
struct sctp_pf *sctp_get_pf_specific(sa_family_t family) {
if (!sctp_sanity_check())
goto out;
- status = sk_alloc_slab(&sctp_prot, "sctp_sock");
+ status = proto_register(&sctp_prot, 1);
if (status)
goto out;
sctp_max_retrans_path = 5;
sctp_max_retrans_init = 8;
+ /* Sendbuffer growth - do per-socket accounting */
+ sctp_sndbuf_policy = 0;
+
+ /* Rcvbuffer growth - do per-socket accounting */
+ sctp_rcvbuf_policy = 0;
+
/* HB.interval - 30 seconds */
- sctp_hb_interval = 30 * HZ;
+ sctp_hb_interval = SCTP_DEFAULT_TIMEOUT_HEARTBEAT;
+
+ /* delayed SACK timeout */
+ sctp_sack_timeout = SCTP_DEFAULT_TIMEOUT_SACK;
/* Implementation specific variables. */
status = 0;
out:
return status;
-err_add_protocol:
- sk_free_slab(&sctp_prot);
err_ctl_sock_init:
sctp_v6_exit();
err_v6_init:
inet_del_protocol(&sctp_protocol, IPPROTO_SCTP);
inet_unregister_protosw(&sctp_seqpacket_protosw);
inet_unregister_protosw(&sctp_stream_protosw);
+err_add_protocol:
+ proto_unregister(&sctp_prot);
goto out;
}
inet_del_protocol(&sctp_protocol, IPPROTO_SCTP);
inet_unregister_protosw(&sctp_seqpacket_protosw);
inet_unregister_protosw(&sctp_stream_protosw);
- sk_free_slab(&sctp_prot);
+ proto_unregister(&sctp_prot);
}
module_init(sctp_init);
module_exit(sctp_exit);
+/*
+ * __stringify doesn't likes enums, so use IPPROTO_SCTP value (132) directly.
+ */
+MODULE_ALIAS("net-pf-" __stringify(PF_INET) "-proto-132");
MODULE_AUTHOR("Linux Kernel SCTP developers <lksctp-developers@lists.sourceforge.net>");
MODULE_DESCRIPTION("Support for the SCTP protocol (RFC2960)");
MODULE_LICENSE("GPL");