mqprio: Avoid panic if no options are provided
[linux-2.6.git] / net / netfilter / nf_conntrack_proto_sctp.c
index 177e8f6..6772b11 100644 (file)
 #include <net/netfilter/nf_conntrack_l4proto.h>
 #include <net/netfilter/nf_conntrack_ecache.h>
 
-/* Protects conntrack->proto.sctp */
-static DEFINE_RWLOCK(sctp_lock);
-
 /* FIXME: Examine ipfilter's timeouts and conntrack transitions more
    closely.  They're more complex. --RR
 
    And so for me for SCTP :D -Kiran */
 
-static const char *sctp_conntrack_names[] = {
+static const char *const sctp_conntrack_names[] = {
        "NONE",
        "CLOSED",
        "COOKIE_WAIT",
@@ -49,24 +46,15 @@ static const char *sctp_conntrack_names[] = {
 #define HOURS * 60 MINS
 #define DAYS  * 24 HOURS
 
-static unsigned int nf_ct_sctp_timeout_closed __read_mostly          =  10 SECS;
-static unsigned int nf_ct_sctp_timeout_cookie_wait __read_mostly     =   3 SECS;
-static unsigned int nf_ct_sctp_timeout_cookie_echoed __read_mostly   =   3 SECS;
-static unsigned int nf_ct_sctp_timeout_established __read_mostly     =   5 DAYS;
-static unsigned int nf_ct_sctp_timeout_shutdown_sent __read_mostly   = 300 SECS / 1000;
-static unsigned int nf_ct_sctp_timeout_shutdown_recd __read_mostly   = 300 SECS / 1000;
-static unsigned int nf_ct_sctp_timeout_shutdown_ack_sent __read_mostly = 3 SECS;
-
-static unsigned int * sctp_timeouts[]
-= { NULL,                                  /* SCTP_CONNTRACK_NONE  */
-    &nf_ct_sctp_timeout_closed,                   /* SCTP_CONNTRACK_CLOSED */
-    &nf_ct_sctp_timeout_cookie_wait,       /* SCTP_CONNTRACK_COOKIE_WAIT */
-    &nf_ct_sctp_timeout_cookie_echoed,     /* SCTP_CONNTRACK_COOKIE_ECHOED */
-    &nf_ct_sctp_timeout_established,       /* SCTP_CONNTRACK_ESTABLISHED */
-    &nf_ct_sctp_timeout_shutdown_sent,     /* SCTP_CONNTRACK_SHUTDOWN_SENT */
-    &nf_ct_sctp_timeout_shutdown_recd,     /* SCTP_CONNTRACK_SHUTDOWN_RECD */
-    &nf_ct_sctp_timeout_shutdown_ack_sent  /* SCTP_CONNTRACK_SHUTDOWN_ACK_SENT */
- };
+static unsigned int sctp_timeouts[SCTP_CONNTRACK_MAX] __read_mostly = {
+       [SCTP_CONNTRACK_CLOSED]                 = 10 SECS,
+       [SCTP_CONNTRACK_COOKIE_WAIT]            = 3 SECS,
+       [SCTP_CONNTRACK_COOKIE_ECHOED]          = 3 SECS,
+       [SCTP_CONNTRACK_ESTABLISHED]            = 5 DAYS,
+       [SCTP_CONNTRACK_SHUTDOWN_SENT]          = 300 SECS / 1000,
+       [SCTP_CONNTRACK_SHUTDOWN_RECD]          = 300 SECS / 1000,
+       [SCTP_CONNTRACK_SHUTDOWN_ACK_SENT]      = 3 SECS,
+};
 
 #define sNO SCTP_CONNTRACK_NONE
 #define        sCL SCTP_CONNTRACK_CLOSED
@@ -119,9 +107,9 @@ static const u8 sctp_conntracks[2][9][SCTP_CONNTRACK_MAX] = {
 /* abort        */ {sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL},
 /* shutdown     */ {sCL, sCL, sCW, sCE, sSS, sSS, sSR, sSA},
 /* shutdown_ack */ {sSA, sCL, sCW, sCE, sES, sSA, sSA, sSA},
-/* error        */ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Cant have Stale cookie*/
+/* error        */ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Can't have Stale cookie*/
 /* cookie_echo  */ {sCL, sCL, sCE, sCE, sES, sSS, sSR, sSA},/* 5.2.4 - Big TODO */
-/* cookie_ack   */ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Cant come in orig dir */
+/* cookie_ack   */ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Can't come in orig dir */
 /* shutdown_comp*/ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sCL}
        },
        {
@@ -133,34 +121,34 @@ static const u8 sctp_conntracks[2][9][SCTP_CONNTRACK_MAX] = {
 /* shutdown     */ {sIV, sCL, sCW, sCE, sSR, sSS, sSR, sSA},
 /* shutdown_ack */ {sIV, sCL, sCW, sCE, sES, sSA, sSA, sSA},
 /* error        */ {sIV, sCL, sCW, sCL, sES, sSS, sSR, sSA},
-/* cookie_echo  */ {sIV, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Cant come in reply dir */
+/* cookie_echo  */ {sIV, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Can't come in reply dir */
 /* cookie_ack   */ {sIV, sCL, sCW, sES, sES, sSS, sSR, sSA},
 /* shutdown_comp*/ {sIV, sCL, sCW, sCE, sES, sSS, sSR, sCL}
        }
 };
 
-static int sctp_pkt_to_tuple(const struct sk_buff *skb,
-                            unsigned int dataoff,
-                            struct nf_conntrack_tuple *tuple)
+static bool sctp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
+                             struct nf_conntrack_tuple *tuple)
 {
-       sctp_sctphdr_t _hdr, *hp;
+       const struct sctphdr *hp;
+       struct sctphdr _hdr;
 
        /* Actually only need first 8 bytes. */
        hp = skb_header_pointer(skb, dataoff, 8, &_hdr);
        if (hp == NULL)
-               return 0;
+               return false;
 
        tuple->src.u.sctp.port = hp->source;
        tuple->dst.u.sctp.port = hp->dest;
-       return 1;
+       return true;
 }
 
-static int sctp_invert_tuple(struct nf_conntrack_tuple *tuple,
-                            const struct nf_conntrack_tuple *orig)
+static bool sctp_invert_tuple(struct nf_conntrack_tuple *tuple,
+                             const struct nf_conntrack_tuple *orig)
 {
        tuple->src.u.sctp.port = orig->dst.u.sctp.port;
        tuple->dst.u.sctp.port = orig->src.u.sctp.port;
-       return 1;
+       return true;
 }
 
 /* Print out the per-protocol part of the tuple. */
@@ -173,13 +161,13 @@ static int sctp_print_tuple(struct seq_file *s,
 }
 
 /* Print out the private part of the conntrack. */
-static int sctp_print_conntrack(struct seq_file *s, const struct nf_conn *ct)
+static int sctp_print_conntrack(struct seq_file *s, struct nf_conn *ct)
 {
        enum sctp_conntrack state;
 
-       read_lock_bh(&sctp_lock);
+       spin_lock_bh(&ct->lock);
        state = ct->proto.sctp.state;
-       read_unlock_bh(&sctp_lock);
+       spin_unlock_bh(&ct->lock);
 
        return seq_printf(s, "%s ", sctp_conntrack_names[state]);
 }
@@ -296,13 +284,15 @@ static int sctp_packet(struct nf_conn *ct,
                       const struct sk_buff *skb,
                       unsigned int dataoff,
                       enum ip_conntrack_info ctinfo,
-                      int pf,
+                      u_int8_t pf,
                       unsigned int hooknum)
 {
        enum sctp_conntrack new_state, old_state;
        enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-       sctp_sctphdr_t _sctph, *sh;
-       sctp_chunkhdr_t _sch, *sch;
+       const struct sctphdr *sh;
+       struct sctphdr _sctph;
+       const struct sctp_chunkhdr *sch;
+       struct sctp_chunkhdr _sch;
        u_int32_t offset, count;
        unsigned long map[256 / sizeof(unsigned long)] = { 0 };
 
@@ -324,8 +314,8 @@ static int sctp_packet(struct nf_conn *ct,
                goto out;
        }
 
-       old_state = new_state = SCTP_CONNTRACK_MAX;
-       write_lock_bh(&sctp_lock);
+       old_state = new_state = SCTP_CONNTRACK_NONE;
+       spin_lock_bh(&ct->lock);
        for_each_sctp_chunk (skb, sch, _sch, offset, dataoff, count) {
                /* Special cases of Verification tag check (Sec 8.5.1) */
                if (sch->type == SCTP_CID_INIT) {
@@ -341,7 +331,7 @@ static int sctp_packet(struct nf_conn *ct,
                        /* Sec 8.5.1 (C) */
                        if (sh->vtag != ct->proto.sctp.vtag[dir] &&
                            sh->vtag != ct->proto.sctp.vtag[!dir] &&
-                           (sch->flags & 1))
+                           sch->flags & SCTP_CHUNK_FLAG_T)
                                goto out_unlock;
                } else if (sch->type == SCTP_CID_COOKIE_ECHO) {
                        /* Sec 8.5.1 (D) */
@@ -376,51 +366,54 @@ static int sctp_packet(struct nf_conn *ct,
 
                ct->proto.sctp.state = new_state;
                if (old_state != new_state)
-                       nf_conntrack_event_cache(IPCT_PROTOINFO, skb);
+                       nf_conntrack_event_cache(IPCT_PROTOINFO, ct);
        }
-       write_unlock_bh(&sctp_lock);
+       spin_unlock_bh(&ct->lock);
 
-       nf_ct_refresh_acct(ct, ctinfo, skb, *sctp_timeouts[new_state]);
+       nf_ct_refresh_acct(ct, ctinfo, skb, sctp_timeouts[new_state]);
 
        if (old_state == SCTP_CONNTRACK_COOKIE_ECHOED &&
            dir == IP_CT_DIR_REPLY &&
            new_state == SCTP_CONNTRACK_ESTABLISHED) {
                pr_debug("Setting assured bit\n");
                set_bit(IPS_ASSURED_BIT, &ct->status);
-               nf_conntrack_event_cache(IPCT_STATUS, skb);
+               nf_conntrack_event_cache(IPCT_ASSURED, ct);
        }
 
        return NF_ACCEPT;
 
 out_unlock:
-       write_unlock_bh(&sctp_lock);
+       spin_unlock_bh(&ct->lock);
 out:
        return -NF_ACCEPT;
 }
 
 /* Called when a new connection for this protocol found. */
-static int sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
-                   unsigned int dataoff)
+static bool sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
+                    unsigned int dataoff)
 {
        enum sctp_conntrack new_state;
-       sctp_sctphdr_t _sctph, *sh;
-       sctp_chunkhdr_t _sch, *sch;
+       const struct sctphdr *sh;
+       struct sctphdr _sctph;
+       const struct sctp_chunkhdr *sch;
+       struct sctp_chunkhdr _sch;
        u_int32_t offset, count;
        unsigned long map[256 / sizeof(unsigned long)] = { 0 };
 
        sh = skb_header_pointer(skb, dataoff, sizeof(_sctph), &_sctph);
        if (sh == NULL)
-               return 0;
+               return false;
 
        if (do_basic_checks(ct, skb, dataoff, map) != 0)
-               return 0;
+               return false;
 
        /* If an OOTB packet has any of these chunks discard (Sec 8.4) */
        if (test_bit(SCTP_CID_ABORT, map) ||
            test_bit(SCTP_CID_SHUTDOWN_COMPLETE, map) ||
            test_bit(SCTP_CID_COOKIE_ACK, map))
-               return 0;
+               return false;
 
+       memset(&ct->proto.sctp, 0, sizeof(ct->proto.sctp));
        new_state = SCTP_CONNTRACK_MAX;
        for_each_sctp_chunk (skb, sch, _sch, offset, dataoff, count) {
                /* Don't need lock here: this conntrack not in circulation yet */
@@ -431,7 +424,7 @@ static int sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
                if (new_state == SCTP_CONNTRACK_NONE ||
                    new_state == SCTP_CONNTRACK_MAX) {
                        pr_debug("nf_conntrack_sctp: invalid new deleting.\n");
-                       return 0;
+                       return false;
                }
 
                /* Copy the vtag into the state info */
@@ -442,7 +435,7 @@ static int sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
                                ih = skb_header_pointer(skb, offset + sizeof(sctp_chunkhdr_t),
                                                        sizeof(_inithdr), &_inithdr);
                                if (ih == NULL)
-                                       return 0;
+                                       return false;
 
                                pr_debug("Setting vtag %x for new conn\n",
                                         ih->init_tag);
@@ -451,7 +444,7 @@ static int sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
                                                                ih->init_tag;
                        } else {
                                /* Sec 8.5.1 (A) */
-                               return 0;
+                               return false;
                        }
                }
                /* If it is a shutdown ack OOTB packet, we expect a return
@@ -465,121 +458,199 @@ static int sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
                ct->proto.sctp.state = new_state;
        }
 
-       return 1;
+       return true;
+}
+
+#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
+
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nfnetlink_conntrack.h>
+
+static int sctp_to_nlattr(struct sk_buff *skb, struct nlattr *nla,
+                         struct nf_conn *ct)
+{
+       struct nlattr *nest_parms;
+
+       spin_lock_bh(&ct->lock);
+       nest_parms = nla_nest_start(skb, CTA_PROTOINFO_SCTP | NLA_F_NESTED);
+       if (!nest_parms)
+               goto nla_put_failure;
+
+       NLA_PUT_U8(skb, CTA_PROTOINFO_SCTP_STATE, ct->proto.sctp.state);
+
+       NLA_PUT_BE32(skb,
+                    CTA_PROTOINFO_SCTP_VTAG_ORIGINAL,
+                    ct->proto.sctp.vtag[IP_CT_DIR_ORIGINAL]);
+
+       NLA_PUT_BE32(skb,
+                    CTA_PROTOINFO_SCTP_VTAG_REPLY,
+                    ct->proto.sctp.vtag[IP_CT_DIR_REPLY]);
+
+       spin_unlock_bh(&ct->lock);
+
+       nla_nest_end(skb, nest_parms);
+
+       return 0;
+
+nla_put_failure:
+       spin_unlock_bh(&ct->lock);
+       return -1;
 }
 
+static const struct nla_policy sctp_nla_policy[CTA_PROTOINFO_SCTP_MAX+1] = {
+       [CTA_PROTOINFO_SCTP_STATE]          = { .type = NLA_U8 },
+       [CTA_PROTOINFO_SCTP_VTAG_ORIGINAL]  = { .type = NLA_U32 },
+       [CTA_PROTOINFO_SCTP_VTAG_REPLY]     = { .type = NLA_U32 },
+};
+
+static int nlattr_to_sctp(struct nlattr *cda[], struct nf_conn *ct)
+{
+       struct nlattr *attr = cda[CTA_PROTOINFO_SCTP];
+       struct nlattr *tb[CTA_PROTOINFO_SCTP_MAX+1];
+       int err;
+
+       /* updates may not contain the internal protocol info, skip parsing */
+       if (!attr)
+               return 0;
+
+       err = nla_parse_nested(tb,
+                              CTA_PROTOINFO_SCTP_MAX,
+                              attr,
+                              sctp_nla_policy);
+       if (err < 0)
+               return err;
+
+       if (!tb[CTA_PROTOINFO_SCTP_STATE] ||
+           !tb[CTA_PROTOINFO_SCTP_VTAG_ORIGINAL] ||
+           !tb[CTA_PROTOINFO_SCTP_VTAG_REPLY])
+               return -EINVAL;
+
+       spin_lock_bh(&ct->lock);
+       ct->proto.sctp.state = nla_get_u8(tb[CTA_PROTOINFO_SCTP_STATE]);
+       ct->proto.sctp.vtag[IP_CT_DIR_ORIGINAL] =
+               nla_get_be32(tb[CTA_PROTOINFO_SCTP_VTAG_ORIGINAL]);
+       ct->proto.sctp.vtag[IP_CT_DIR_REPLY] =
+               nla_get_be32(tb[CTA_PROTOINFO_SCTP_VTAG_REPLY]);
+       spin_unlock_bh(&ct->lock);
+
+       return 0;
+}
+
+static int sctp_nlattr_size(void)
+{
+       return nla_total_size(0)        /* CTA_PROTOINFO_SCTP */
+               + nla_policy_len(sctp_nla_policy, CTA_PROTOINFO_SCTP_MAX + 1);
+}
+#endif
+
 #ifdef CONFIG_SYSCTL
 static unsigned int sctp_sysctl_table_users;
 static struct ctl_table_header *sctp_sysctl_header;
 static struct ctl_table sctp_sysctl_table[] = {
        {
                .procname       = "nf_conntrack_sctp_timeout_closed",
-               .data           = &nf_ct_sctp_timeout_closed,
+               .data           = &sctp_timeouts[SCTP_CONNTRACK_CLOSED],
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
        },
        {
                .procname       = "nf_conntrack_sctp_timeout_cookie_wait",
-               .data           = &nf_ct_sctp_timeout_cookie_wait,
+               .data           = &sctp_timeouts[SCTP_CONNTRACK_COOKIE_WAIT],
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
        },
        {
                .procname       = "nf_conntrack_sctp_timeout_cookie_echoed",
-               .data           = &nf_ct_sctp_timeout_cookie_echoed,
+               .data           = &sctp_timeouts[SCTP_CONNTRACK_COOKIE_ECHOED],
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
        },
        {
                .procname       = "nf_conntrack_sctp_timeout_established",
-               .data           = &nf_ct_sctp_timeout_established,
+               .data           = &sctp_timeouts[SCTP_CONNTRACK_ESTABLISHED],
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
        },
        {
                .procname       = "nf_conntrack_sctp_timeout_shutdown_sent",
-               .data           = &nf_ct_sctp_timeout_shutdown_sent,
+               .data           = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_SENT],
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
        },
        {
                .procname       = "nf_conntrack_sctp_timeout_shutdown_recd",
-               .data           = &nf_ct_sctp_timeout_shutdown_recd,
+               .data           = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_RECD],
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
        },
        {
                .procname       = "nf_conntrack_sctp_timeout_shutdown_ack_sent",
-               .data           = &nf_ct_sctp_timeout_shutdown_ack_sent,
+               .data           = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_ACK_SENT],
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
        },
-       {
-               .ctl_name = 0
-       }
+       { }
 };
 
 #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
 static struct ctl_table sctp_compat_sysctl_table[] = {
        {
                .procname       = "ip_conntrack_sctp_timeout_closed",
-               .data           = &nf_ct_sctp_timeout_closed,
+               .data           = &sctp_timeouts[SCTP_CONNTRACK_CLOSED],
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
        },
        {
                .procname       = "ip_conntrack_sctp_timeout_cookie_wait",
-               .data           = &nf_ct_sctp_timeout_cookie_wait,
+               .data           = &sctp_timeouts[SCTP_CONNTRACK_COOKIE_WAIT],
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
        },
        {
                .procname       = "ip_conntrack_sctp_timeout_cookie_echoed",
-               .data           = &nf_ct_sctp_timeout_cookie_echoed,
+               .data           = &sctp_timeouts[SCTP_CONNTRACK_COOKIE_ECHOED],
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
        },
        {
                .procname       = "ip_conntrack_sctp_timeout_established",
-               .data           = &nf_ct_sctp_timeout_established,
+               .data           = &sctp_timeouts[SCTP_CONNTRACK_ESTABLISHED],
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
        },
        {
                .procname       = "ip_conntrack_sctp_timeout_shutdown_sent",
-               .data           = &nf_ct_sctp_timeout_shutdown_sent,
+               .data           = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_SENT],
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
        },
        {
                .procname       = "ip_conntrack_sctp_timeout_shutdown_recd",
-               .data           = &nf_ct_sctp_timeout_shutdown_recd,
+               .data           = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_RECD],
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
        },
        {
                .procname       = "ip_conntrack_sctp_timeout_shutdown_ack_sent",
-               .data           = &nf_ct_sctp_timeout_shutdown_ack_sent,
+               .data           = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_ACK_SENT],
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
        },
-       {
-               .ctl_name = 0
-       }
+       { }
 };
 #endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */
 #endif
@@ -596,7 +667,11 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 __read_mostly = {
        .new                    = sctp_new,
        .me                     = THIS_MODULE,
 #if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
+       .to_nlattr              = sctp_to_nlattr,
+       .nlattr_size            = sctp_nlattr_size,
+       .from_nlattr            = nlattr_to_sctp,
        .tuple_to_nlattr        = nf_ct_port_tuple_to_nlattr,
+       .nlattr_tuple_size      = nf_ct_port_nlattr_tuple_size,
        .nlattr_to_tuple        = nf_ct_port_nlattr_to_tuple,
        .nla_policy             = nf_ct_port_nla_policy,
 #endif
@@ -622,7 +697,11 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 __read_mostly = {
        .new                    = sctp_new,
        .me                     = THIS_MODULE,
 #if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
+       .to_nlattr              = sctp_to_nlattr,
+       .nlattr_size            = sctp_nlattr_size,
+       .from_nlattr            = nlattr_to_sctp,
        .tuple_to_nlattr        = nf_ct_port_tuple_to_nlattr,
+       .nlattr_tuple_size      = nf_ct_port_nlattr_tuple_size,
        .nlattr_to_tuple        = nf_ct_port_nlattr_to_tuple,
        .nla_policy             = nf_ct_port_nla_policy,
 #endif
@@ -633,18 +712,18 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 __read_mostly = {
 #endif
 };
 
-int __init nf_conntrack_proto_sctp_init(void)
+static int __init nf_conntrack_proto_sctp_init(void)
 {
        int ret;
 
        ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_sctp4);
        if (ret) {
-               printk("nf_conntrack_l4proto_sctp4: protocol register failed\n");
+               pr_err("nf_conntrack_l4proto_sctp4: protocol register failed\n");
                goto out;
        }
        ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_sctp6);
        if (ret) {
-               printk("nf_conntrack_l4proto_sctp6: protocol register failed\n");
+               pr_err("nf_conntrack_l4proto_sctp6: protocol register failed\n");
                goto cleanup_sctp4;
        }
 
@@ -656,7 +735,7 @@ int __init nf_conntrack_proto_sctp_init(void)
        return ret;
 }
 
-void __exit nf_conntrack_proto_sctp_fini(void)
+static void __exit nf_conntrack_proto_sctp_fini(void)
 {
        nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_sctp6);
        nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_sctp4);