[SCTP]: Fix a race between module load and protosw access

[cascardo/linux.git] / include / net / sctp / sctp.h

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 93eb708..57ed3e3 100644 (file)
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -1,20 +1,20 @@
-/* SCTP kernel reference Implementation
+/* SCTP kernel implementation
  * (C) Copyright IBM Corp. 2001, 2004
  * Copyright (c) 1999-2000 Cisco, Inc.
  * Copyright (c) 1999-2001 Motorola, Inc.
  * Copyright (c) 2001-2003 Intel Corp.
  *
- * This file is part of the SCTP kernel reference Implementation
+ * This file is part of the SCTP kernel implementation
  *
  * The base lksctp header.
  *
- * The SCTP reference implementation is free software;
+ * This SCTP implementation is free software;
  * you can redistribute it and/or modify it under the terms of
  * the GNU General Public License as published by
  * the Free Software Foundation; either version 2, or (at your option)
  * any later version.
  *
- * The SCTP reference implementation is distributed in the hope that it
+ * This SCTP implementation is distributed in the hope that it
  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  *                 ************************
  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
@@ -65,7 +65,6 @@
 
 
 #ifdef TEST_FRAME
-#undef CONFIG_PROC_FS
 #undef CONFIG_SCTP_DBG_OBJCNT
 #undef CONFIG_SYSCTL
 #endif /* TEST_FRAME */
@@ -150,13 +149,6 @@ int sctp_primitive_SEND(struct sctp_association *, void *arg);
 int sctp_primitive_REQUESTHEARTBEAT(struct sctp_association *, void *arg);
 int sctp_primitive_ASCONF(struct sctp_association *, void *arg);
 
-/*
- * sctp/crc32c.c
- */
-__u32 sctp_start_cksum(__u8 *ptr, __u16 count);
-__u32 sctp_update_cksum(__u8 *ptr, __u16 count, __u32 cksum);
-__u32 sctp_end_cksum(__u32 cksum);
-
 /*
  * sctp/input.c
  */
@@ -267,6 +259,7 @@ enum
        SCTP_MIB_T5_SHUTDOWN_GUARD_EXPIREDS,
        SCTP_MIB_DELAY_SACK_EXPIREDS,
        SCTP_MIB_AUTOCLOSE_EXPIREDS,
+       SCTP_MIB_T1_RETRANSMITS,
        SCTP_MIB_T3_RETRANSMITS,
        SCTP_MIB_PMTUD_RETRANSMITS,
        SCTP_MIB_FAST_RETRANSMITS,
@@ -387,15 +380,19 @@ static inline int sctp_sysctl_jiffies_ms(ctl_table *table, int __user *name, int
 
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
 
-int sctp_v6_init(void);
-void sctp_v6_exit(void);
+void sctp_v6_pf_init(void);
+void sctp_v6_pf_exit(void);
+int sctp_v6_protosw_init(void);
+void sctp_v6_protosw_exit(void);
 int sctp_v6_add_protocol(void);
 void sctp_v6_del_protocol(void);
 
 #else /* #ifdef defined(CONFIG_IPV6) */
 
-static inline int sctp_v6_init(void) { return 0; }
-static inline void sctp_v6_exit(void) { return; }
+static inline void sctp_v6_pf_init(void) { return 0; }
+static inline void sctp_v6_pf_exit(void) { return; }
+static inline int sctp_v6_protosw_init(void) { return 0; }
+static inline void sctp_v6_protosw_exit(void) { return; }
 static inline int sctp_v6_add_protocol(void) { return 0; }
 static inline void sctp_v6_del_protocol(void) { return; }
 
@@ -470,8 +467,7 @@ static inline void sctp_skb_set_owner_r(struct sk_buff *skb, struct sock *sk)
        skb->destructor = sctp_sock_rfree;
        atomic_add(event->rmem_len, &sk->sk_rmem_alloc);
        /*
-        * This mimics the behavior of
-        * sk_stream_set_owner_r
+        * This mimics the behavior of skb_set_owner_r
         */
        sk->sk_forward_alloc -= event->rmem_len;
 }
@@ -664,6 +660,9 @@ static inline int sctp_vtag_hashfn(__u16 lport, __u16 rport, __u32 vtag)
        return (h & (sctp_assoc_hashsize-1));
 }
 
+#define sctp_for_each_hentry(epb, node, head) \
+       hlist_for_each_entry(epb, node, head, node)
+
 /* Is a socket of this style? */
 #define sctp_style(sk, style) __sctp_style((sk), (SCTP_SOCKET_##style))
 static inline int __sctp_style(const struct sock *sk, sctp_socket_type_t style)