Commit f21e68ca authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo Committed by David S. Miller

[DCCP]: Prepare the AF agnostic core for the introduction of DCCPv6

Basically exports a similar set of functions as the one exported by
the non-AF specific TCP code.

In the process moved some non-AF specific code from dccp_v4_connect to
dccp_connect_init and moved the checksum verification from
dccp_invalid_packet to dccp_v4_rcv, so as to use it in dccp_v6_rcv
too.
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 34ca6860
...@@ -228,6 +228,9 @@ extern int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb, ...@@ -228,6 +228,9 @@ extern int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
extern int dccp_rcv_established(struct sock *sk, struct sk_buff *skb, extern int dccp_rcv_established(struct sock *sk, struct sk_buff *skb,
const struct dccp_hdr *dh, const unsigned len); const struct dccp_hdr *dh, const unsigned len);
extern int dccp_v4_init_sock(struct sock *sk);
extern int dccp_v4_destroy_sock(struct sock *sk);
extern void dccp_close(struct sock *sk, long timeout); extern void dccp_close(struct sock *sk, long timeout);
extern struct sk_buff *dccp_make_response(struct sock *sk, extern struct sk_buff *dccp_make_response(struct sock *sk,
struct dst_entry *dst, struct dst_entry *dst,
...@@ -238,6 +241,7 @@ extern struct sk_buff *dccp_make_reset(struct sock *sk, ...@@ -238,6 +241,7 @@ extern struct sk_buff *dccp_make_reset(struct sock *sk,
extern int dccp_connect(struct sock *sk); extern int dccp_connect(struct sock *sk);
extern int dccp_disconnect(struct sock *sk, int flags); extern int dccp_disconnect(struct sock *sk, int flags);
extern void dccp_unhash(struct sock *sk);
extern int dccp_getsockopt(struct sock *sk, int level, int optname, extern int dccp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen); char __user *optval, int __user *optlen);
extern int dccp_setsockopt(struct sock *sk, int level, int optname, extern int dccp_setsockopt(struct sock *sk, int level, int optname,
...@@ -249,6 +253,13 @@ extern int dccp_recvmsg(struct kiocb *iocb, struct sock *sk, ...@@ -249,6 +253,13 @@ extern int dccp_recvmsg(struct kiocb *iocb, struct sock *sk,
struct msghdr *msg, size_t len, int nonblock, struct msghdr *msg, size_t len, int nonblock,
int flags, int *addr_len); int flags, int *addr_len);
extern void dccp_shutdown(struct sock *sk, int how); extern void dccp_shutdown(struct sock *sk, int how);
extern int inet_dccp_listen(struct socket *sock, int backlog);
extern unsigned int dccp_poll(struct file *file, struct socket *sock,
poll_table *wait);
extern void dccp_v4_send_check(struct sock *sk, int len,
struct sk_buff *skb);
extern int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr,
int addr_len);
extern int dccp_v4_checksum(const struct sk_buff *skb, extern int dccp_v4_checksum(const struct sk_buff *skb,
const u32 saddr, const u32 daddr); const u32 saddr, const u32 daddr);
...@@ -256,6 +267,17 @@ extern int dccp_v4_checksum(const struct sk_buff *skb, ...@@ -256,6 +267,17 @@ extern int dccp_v4_checksum(const struct sk_buff *skb,
extern int dccp_v4_send_reset(struct sock *sk, extern int dccp_v4_send_reset(struct sock *sk,
enum dccp_reset_codes code); enum dccp_reset_codes code);
extern void dccp_send_close(struct sock *sk, const int active); extern void dccp_send_close(struct sock *sk, const int active);
extern int dccp_invalid_packet(struct sk_buff *skb);
static inline int dccp_bad_service_code(const struct sock *sk,
const __u32 service)
{
const struct dccp_sock *dp = dccp_sk(sk);
if (dp->dccps_service == service)
return 0;
return !dccp_list_has_service(dp->dccps_service_list, service);
}
struct dccp_skb_cb { struct dccp_skb_cb {
__u8 dccpd_type:4; __u8 dccpd_type:4;
......
...@@ -250,6 +250,8 @@ discard: ...@@ -250,6 +250,8 @@ discard:
return 0; return 0;
} }
EXPORT_SYMBOL_GPL(dccp_rcv_established);
static int dccp_rcv_request_sent_state_process(struct sock *sk, static int dccp_rcv_request_sent_state_process(struct sock *sk,
struct sk_buff *skb, struct sk_buff *skb,
const struct dccp_hdr *dh, const struct dccp_hdr *dh,
...@@ -567,3 +569,5 @@ discard: ...@@ -567,3 +569,5 @@ discard:
} }
return 0; return 0;
} }
EXPORT_SYMBOL_GPL(dccp_rcv_state_process);
...@@ -46,11 +46,13 @@ static void dccp_v4_hash(struct sock *sk) ...@@ -46,11 +46,13 @@ static void dccp_v4_hash(struct sock *sk)
inet_hash(&dccp_hashinfo, sk); inet_hash(&dccp_hashinfo, sk);
} }
static void dccp_v4_unhash(struct sock *sk) void dccp_unhash(struct sock *sk)
{ {
inet_unhash(&dccp_hashinfo, sk); inet_unhash(&dccp_hashinfo, sk);
} }
EXPORT_SYMBOL_GPL(dccp_unhash);
/* called with local bh disabled */ /* called with local bh disabled */
static int __dccp_v4_check_established(struct sock *sk, const __u16 lport, static int __dccp_v4_check_established(struct sock *sk, const __u16 lport,
struct inet_timewait_sock **twp) struct inet_timewait_sock **twp)
...@@ -209,8 +211,7 @@ out: ...@@ -209,8 +211,7 @@ out:
} }
} }
static int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
int addr_len)
{ {
struct inet_sock *inet = inet_sk(sk); struct inet_sock *inet = inet_sk(sk);
struct dccp_sock *dp = dccp_sk(sk); struct dccp_sock *dp = dccp_sk(sk);
...@@ -288,16 +289,6 @@ static int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, ...@@ -288,16 +289,6 @@ static int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr,
usin->sin_port); usin->sin_port);
dccp_update_gss(sk, dp->dccps_iss); dccp_update_gss(sk, dp->dccps_iss);
/*
* SWL and AWL are initially adjusted so that they are not less than
* the initial Sequence Numbers received and sent, respectively:
* SWL := max(GSR + 1 - floor(W/4), ISR),
* AWL := max(GSS - W' + 1, ISS).
* These adjustments MUST be applied only at the beginning of the
* connection.
*/
dccp_set_seqno(&dp->dccps_awl, max48(dp->dccps_awl, dp->dccps_iss));
inet->id = dp->dccps_iss ^ jiffies; inet->id = dp->dccps_iss ^ jiffies;
err = dccp_connect(sk); err = dccp_connect(sk);
...@@ -317,6 +308,8 @@ failure: ...@@ -317,6 +308,8 @@ failure:
goto out; goto out;
} }
EXPORT_SYMBOL_GPL(dccp_v4_connect);
/* /*
* This routine does path mtu discovery as defined in RFC1191. * This routine does path mtu discovery as defined in RFC1191.
*/ */
...@@ -608,7 +601,7 @@ out: ...@@ -608,7 +601,7 @@ out:
} }
/* This routine computes an IPv4 DCCP checksum. */ /* This routine computes an IPv4 DCCP checksum. */
static void dccp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb) void dccp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb)
{ {
const struct inet_sock *inet = inet_sk(sk); const struct inet_sock *inet = inet_sk(sk);
struct dccp_hdr *dh = dccp_hdr(skb); struct dccp_hdr *dh = dccp_hdr(skb);
...@@ -616,6 +609,8 @@ static void dccp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb) ...@@ -616,6 +609,8 @@ static void dccp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb)
dh->dccph_checksum = dccp_v4_checksum(skb, inet->saddr, inet->daddr); dh->dccph_checksum = dccp_v4_checksum(skb, inet->saddr, inet->daddr);
} }
EXPORT_SYMBOL_GPL(dccp_v4_send_check);
int dccp_v4_send_reset(struct sock *sk, enum dccp_reset_codes code) int dccp_v4_send_reset(struct sock *sk, enum dccp_reset_codes code)
{ {
struct sk_buff *skb; struct sk_buff *skb;
...@@ -651,16 +646,6 @@ static inline u64 dccp_v4_init_sequence(const struct sock *sk, ...@@ -651,16 +646,6 @@ static inline u64 dccp_v4_init_sequence(const struct sock *sk,
dccp_hdr(skb)->dccph_sport); dccp_hdr(skb)->dccph_sport);
} }
static inline int dccp_bad_service_code(const struct sock *sk,
const __u32 service)
{
const struct dccp_sock *dp = dccp_sk(sk);
if (dp->dccps_service == service)
return 0;
return !dccp_list_has_service(dp->dccps_service_list, service);
}
int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb) int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
{ {
struct inet_request_sock *ireq; struct inet_request_sock *ireq;
...@@ -672,7 +657,6 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb) ...@@ -672,7 +657,6 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
const __u32 service = dccp_hdr_request(skb)->dccph_req_service; const __u32 service = dccp_hdr_request(skb)->dccph_req_service;
struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb); struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
__u8 reset_code = DCCP_RESET_CODE_TOO_BUSY; __u8 reset_code = DCCP_RESET_CODE_TOO_BUSY;
struct dst_entry *dst = NULL;
/* Never answer to DCCP_PKT_REQUESTs send to broadcast or multicast */ /* Never answer to DCCP_PKT_REQUESTs send to broadcast or multicast */
if (((struct rtable *)skb->dst)->rt_flags & if (((struct rtable *)skb->dst)->rt_flags &
...@@ -713,7 +697,6 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb) ...@@ -713,7 +697,6 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
ireq = inet_rsk(req); ireq = inet_rsk(req);
ireq->loc_addr = daddr; ireq->loc_addr = daddr;
ireq->rmt_addr = saddr; ireq->rmt_addr = saddr;
/* FIXME: Merge Aristeu's option parsing code when ready */
req->rcv_wnd = 100; /* Fake, option parsing will get the req->rcv_wnd = 100; /* Fake, option parsing will get the
right value */ right value */
ireq->opt = NULL; ireq->opt = NULL;
...@@ -731,7 +714,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb) ...@@ -731,7 +714,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
dreq->dreq_iss = dccp_v4_init_sequence(sk, skb); dreq->dreq_iss = dccp_v4_init_sequence(sk, skb);
dreq->dreq_service = service; dreq->dreq_service = service;
if (dccp_v4_send_response(sk, req, dst)) if (dccp_v4_send_response(sk, req, NULL))
goto drop_and_free; goto drop_and_free;
inet_csk_reqsk_queue_hash_add(sk, req, DCCP_TIMEOUT_INIT); inet_csk_reqsk_queue_hash_add(sk, req, DCCP_TIMEOUT_INIT);
...@@ -748,6 +731,8 @@ drop: ...@@ -748,6 +731,8 @@ drop:
return -1; return -1;
} }
EXPORT_SYMBOL_GPL(dccp_v4_conn_request);
/* /*
* The three way handshake has completed - we got a valid ACK or DATAACK - * The three way handshake has completed - we got a valid ACK or DATAACK -
* now create the new socket. * now create the new socket.
...@@ -802,6 +787,8 @@ exit: ...@@ -802,6 +787,8 @@ exit:
return NULL; return NULL;
} }
EXPORT_SYMBOL_GPL(dccp_v4_request_recv_sock);
static struct sock *dccp_v4_hnd_req(struct sock *sk, struct sk_buff *skb) static struct sock *dccp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
{ {
const struct dccp_hdr *dh = dccp_hdr(skb); const struct dccp_hdr *dh = dccp_hdr(skb);
...@@ -1021,7 +1008,9 @@ discard: ...@@ -1021,7 +1008,9 @@ discard:
return 0; return 0;
} }
static inline int dccp_invalid_packet(struct sk_buff *skb) EXPORT_SYMBOL_GPL(dccp_v4_do_rcv);
int dccp_invalid_packet(struct sk_buff *skb)
{ {
const struct dccp_hdr *dh; const struct dccp_hdr *dh;
...@@ -1075,17 +1064,11 @@ static inline int dccp_invalid_packet(struct sk_buff *skb) ...@@ -1075,17 +1064,11 @@ static inline int dccp_invalid_packet(struct sk_buff *skb)
return 1; return 1;
} }
/* If the header checksum is incorrect, drop packet and return */
if (dccp_v4_verify_checksum(skb, skb->nh.iph->saddr,
skb->nh.iph->daddr) < 0) {
LIMIT_NETDEBUG(KERN_WARNING "DCCP: header checksum is "
"incorrect\n");
return 1;
}
return 0; return 0;
} }
EXPORT_SYMBOL_GPL(dccp_invalid_packet);
/* this is called when real data arrives */ /* this is called when real data arrives */
int dccp_v4_rcv(struct sk_buff *skb) int dccp_v4_rcv(struct sk_buff *skb)
{ {
...@@ -1098,6 +1081,14 @@ int dccp_v4_rcv(struct sk_buff *skb) ...@@ -1098,6 +1081,14 @@ int dccp_v4_rcv(struct sk_buff *skb)
if (dccp_invalid_packet(skb)) if (dccp_invalid_packet(skb))
goto discard_it; goto discard_it;
/* If the header checksum is incorrect, drop packet and return */
if (dccp_v4_verify_checksum(skb, skb->nh.iph->saddr,
skb->nh.iph->daddr) < 0) {
LIMIT_NETDEBUG(KERN_WARNING "%s: incorrect header checksum\n",
__FUNCTION__);
goto discard_it;
}
dh = dccp_hdr(skb); dh = dccp_hdr(skb);
DCCP_SKB_CB(skb)->dccpd_seq = dccp_hdr_seq(skb); DCCP_SKB_CB(skb)->dccpd_seq = dccp_hdr_seq(skb);
...@@ -1217,7 +1208,7 @@ struct inet_connection_sock_af_ops dccp_ipv4_af_ops = { ...@@ -1217,7 +1208,7 @@ struct inet_connection_sock_af_ops dccp_ipv4_af_ops = {
.sockaddr_len = sizeof(struct sockaddr_in), .sockaddr_len = sizeof(struct sockaddr_in),
}; };
static int dccp_v4_init_sock(struct sock *sk) int dccp_v4_init_sock(struct sock *sk)
{ {
struct dccp_sock *dp = dccp_sk(sk); struct dccp_sock *dp = dccp_sk(sk);
static int dccp_ctl_socket_init = 1; static int dccp_ctl_socket_init = 1;
...@@ -1270,7 +1261,9 @@ static int dccp_v4_init_sock(struct sock *sk) ...@@ -1270,7 +1261,9 @@ static int dccp_v4_init_sock(struct sock *sk)
return 0; return 0;
} }
static int dccp_v4_destroy_sock(struct sock *sk) EXPORT_SYMBOL_GPL(dccp_v4_init_sock);
int dccp_v4_destroy_sock(struct sock *sk)
{ {
struct dccp_sock *dp = dccp_sk(sk); struct dccp_sock *dp = dccp_sk(sk);
...@@ -1303,6 +1296,8 @@ static int dccp_v4_destroy_sock(struct sock *sk) ...@@ -1303,6 +1296,8 @@ static int dccp_v4_destroy_sock(struct sock *sk)
return 0; return 0;
} }
EXPORT_SYMBOL_GPL(dccp_v4_destroy_sock);
static void dccp_v4_reqsk_destructor(struct request_sock *req) static void dccp_v4_reqsk_destructor(struct request_sock *req)
{ {
kfree(inet_rsk(req)->opt); kfree(inet_rsk(req)->opt);
...@@ -1331,7 +1326,7 @@ struct proto dccp_prot = { ...@@ -1331,7 +1326,7 @@ struct proto dccp_prot = {
.recvmsg = dccp_recvmsg, .recvmsg = dccp_recvmsg,
.backlog_rcv = dccp_v4_do_rcv, .backlog_rcv = dccp_v4_do_rcv,
.hash = dccp_v4_hash, .hash = dccp_v4_hash,
.unhash = dccp_v4_unhash, .unhash = dccp_unhash,
.accept = inet_csk_accept, .accept = inet_csk_accept,
.get_port = dccp_v4_get_port, .get_port = dccp_v4_get_port,
.shutdown = dccp_shutdown, .shutdown = dccp_shutdown,
......
...@@ -40,6 +40,8 @@ struct inet_timewait_death_row dccp_death_row = { ...@@ -40,6 +40,8 @@ struct inet_timewait_death_row dccp_death_row = {
(unsigned long)&dccp_death_row), (unsigned long)&dccp_death_row),
}; };
EXPORT_SYMBOL_GPL(dccp_death_row);
void dccp_time_wait(struct sock *sk, int state, int timeo) void dccp_time_wait(struct sock *sk, int state, int timeo)
{ {
struct inet_timewait_sock *tw = NULL; struct inet_timewait_sock *tw = NULL;
...@@ -170,6 +172,8 @@ out_free: ...@@ -170,6 +172,8 @@ out_free:
return newsk; return newsk;
} }
EXPORT_SYMBOL_GPL(dccp_create_openreq_child);
/* /*
* Process an incoming packet for RESPOND sockets represented * Process an incoming packet for RESPOND sockets represented
* as an request_sock. * as an request_sock.
...@@ -236,6 +240,8 @@ drop: ...@@ -236,6 +240,8 @@ drop:
goto out; goto out;
} }
EXPORT_SYMBOL_GPL(dccp_check_req);
/* /*
* Queue segment on the new socket if the new socket is active, * Queue segment on the new socket if the new socket is active,
* otherwise we just shortcircuit this and continue with * otherwise we just shortcircuit this and continue with
...@@ -266,3 +272,5 @@ int dccp_child_process(struct sock *parent, struct sock *child, ...@@ -266,3 +272,5 @@ int dccp_child_process(struct sock *parent, struct sock *child,
sock_put(child); sock_put(child);
return ret; return ret;
} }
EXPORT_SYMBOL_GPL(dccp_child_process);
...@@ -135,12 +135,6 @@ static int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb) ...@@ -135,12 +135,6 @@ static int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb)
unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu) unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu)
{ {
struct dccp_sock *dp = dccp_sk(sk); struct dccp_sock *dp = dccp_sk(sk);
/*
* FIXME: we really should be using the af_specific thing to support
* IPv6.
* mss_now = pmtu - tp->af_specific->net_header_len -
* sizeof(struct dccp_hdr) - sizeof(struct dccp_hdr_ext);
*/
int mss_now = (pmtu - inet_csk(sk)->icsk_af_ops->net_header_len - int mss_now = (pmtu - inet_csk(sk)->icsk_af_ops->net_header_len -
sizeof(struct dccp_hdr) - sizeof(struct dccp_hdr_ext)); sizeof(struct dccp_hdr) - sizeof(struct dccp_hdr_ext));
...@@ -164,6 +158,8 @@ unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu) ...@@ -164,6 +158,8 @@ unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu)
return mss_now; return mss_now;
} }
EXPORT_SYMBOL_GPL(dccp_sync_mss);
void dccp_write_space(struct sock *sk) void dccp_write_space(struct sock *sk)
{ {
read_lock(&sk->sk_callback_lock); read_lock(&sk->sk_callback_lock);
...@@ -319,6 +315,8 @@ struct sk_buff *dccp_make_response(struct sock *sk, struct dst_entry *dst, ...@@ -319,6 +315,8 @@ struct sk_buff *dccp_make_response(struct sock *sk, struct dst_entry *dst,
return skb; return skb;
} }
EXPORT_SYMBOL_GPL(dccp_make_response);
struct sk_buff *dccp_make_reset(struct sock *sk, struct dst_entry *dst, struct sk_buff *dccp_make_reset(struct sock *sk, struct dst_entry *dst,
const enum dccp_reset_codes code) const enum dccp_reset_codes code)
...@@ -375,6 +373,7 @@ struct sk_buff *dccp_make_reset(struct sock *sk, struct dst_entry *dst, ...@@ -375,6 +373,7 @@ struct sk_buff *dccp_make_reset(struct sock *sk, struct dst_entry *dst,
*/ */
static inline void dccp_connect_init(struct sock *sk) static inline void dccp_connect_init(struct sock *sk)
{ {
struct dccp_sock *dp = dccp_sk(sk);
struct dst_entry *dst = __sk_dst_get(sk); struct dst_entry *dst = __sk_dst_get(sk);
struct inet_connection_sock *icsk = inet_csk(sk); struct inet_connection_sock *icsk = inet_csk(sk);
...@@ -383,10 +382,16 @@ static inline void dccp_connect_init(struct sock *sk) ...@@ -383,10 +382,16 @@ static inline void dccp_connect_init(struct sock *sk)
dccp_sync_mss(sk, dst_mtu(dst)); dccp_sync_mss(sk, dst_mtu(dst));
/* dccp_update_gss(sk, dp->dccps_iss);
* FIXME: set dp->{dccps_swh,dccps_swl}, with /*
* something like dccp_inc_seq * SWL and AWL are initially adjusted so that they are not less than
*/ * the initial Sequence Numbers received and sent, respectively:
* SWL := max(GSR + 1 - floor(W/4), ISR),
* AWL := max(GSS - W' + 1, ISS).
* These adjustments MUST be applied only at the beginning of the
* connection.
*/
dccp_set_seqno(&dp->dccps_awl, max48(dp->dccps_awl, dp->dccps_iss));
icsk->icsk_retransmits = 0; icsk->icsk_retransmits = 0;
} }
...@@ -418,6 +423,8 @@ int dccp_connect(struct sock *sk) ...@@ -418,6 +423,8 @@ int dccp_connect(struct sock *sk)
return 0; return 0;
} }
EXPORT_SYMBOL_GPL(dccp_connect);
void dccp_send_ack(struct sock *sk) void dccp_send_ack(struct sock *sk)
{ {
/* If we have been reset, we may not send again. */ /* If we have been reset, we may not send again. */
......
...@@ -41,8 +41,12 @@ ...@@ -41,8 +41,12 @@
DEFINE_SNMP_STAT(struct dccp_mib, dccp_statistics) __read_mostly; DEFINE_SNMP_STAT(struct dccp_mib, dccp_statistics) __read_mostly;
EXPORT_SYMBOL_GPL(dccp_statistics);
atomic_t dccp_orphan_count = ATOMIC_INIT(0); atomic_t dccp_orphan_count = ATOMIC_INIT(0);
EXPORT_SYMBOL_GPL(dccp_orphan_count);
static struct net_protocol dccp_protocol = { static struct net_protocol dccp_protocol = {
.handler = dccp_v4_rcv, .handler = dccp_v4_rcv,
.err_handler = dccp_v4_err, .err_handler = dccp_v4_err,
...@@ -149,6 +153,8 @@ int dccp_disconnect(struct sock *sk, int flags) ...@@ -149,6 +153,8 @@ int dccp_disconnect(struct sock *sk, int flags)
return err; return err;
} }
EXPORT_SYMBOL_GPL(dccp_disconnect);
/* /*
* Wait for a DCCP event. * Wait for a DCCP event.
* *
...@@ -156,8 +162,8 @@ int dccp_disconnect(struct sock *sk, int flags) ...@@ -156,8 +162,8 @@ int dccp_disconnect(struct sock *sk, int flags)
* take care of normal races (between the test and the event) and we don't * take care of normal races (between the test and the event) and we don't
* go look at any of the socket buffers directly. * go look at any of the socket buffers directly.
*/ */
static unsigned int dccp_poll(struct file *file, struct socket *sock, unsigned int dccp_poll(struct file *file, struct socket *sock,
poll_table *wait) poll_table *wait)
{ {
unsigned int mask; unsigned int mask;
struct sock *sk = sock->sk; struct sock *sk = sock->sk;
...@@ -205,12 +211,16 @@ static unsigned int dccp_poll(struct file *file, struct socket *sock, ...@@ -205,12 +211,16 @@ static unsigned int dccp_poll(struct file *file, struct socket *sock,
return mask; return mask;
} }
EXPORT_SYMBOL_GPL(dccp_poll);
int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg) int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg)
{ {
dccp_pr_debug("entry\n"); dccp_pr_debug("entry\n");
return -ENOIOCTLCMD; return -ENOIOCTLCMD;
} }
EXPORT_SYMBOL_GPL(dccp_ioctl);
static int dccp_setsockopt_service(struct sock *sk, const u32 service, static int dccp_setsockopt_service(struct sock *sk, const u32 service,
char __user *optval, int optlen) char __user *optval, int optlen)
{ {
...@@ -284,6 +294,8 @@ int dccp_setsockopt(struct sock *sk, int level, int optname, ...@@ -284,6 +294,8 @@ int dccp_setsockopt(struct sock *sk, int level, int optname,
return err; return err;
} }
EXPORT_SYMBOL_GPL(dccp_setsockopt);
static int dccp_getsockopt_service(struct sock *sk, int len, static int dccp_getsockopt_service(struct sock *sk, int len,
u32 __user *optval, u32 __user *optval,
int __user *optlen) int __user *optlen)
...@@ -357,6 +369,8 @@ int dccp_getsockopt(struct sock *sk, int level, int optname, ...@@ -357,6 +369,8 @@ int dccp_getsockopt(struct sock *sk, int level, int optname,
return 0; return 0;
} }
EXPORT_SYMBOL_GPL(dccp_getsockopt);
int dccp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, int dccp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
size_t len) size_t len)
{ {
...@@ -413,6 +427,8 @@ out_discard: ...@@ -413,6 +427,8 @@ out_discard:
goto out_release; goto out_release;
} }
EXPORT_SYMBOL_GPL(dccp_sendmsg);
int dccp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, int dccp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
size_t len, int nonblock, int flags, int *addr_len) size_t len, int nonblock, int flags, int *addr_len)
{ {
...@@ -510,7 +526,9 @@ out: ...@@ -510,7 +526,9 @@ out:
return len; return len;
} }
static int inet_dccp_listen(struct socket *sock, int backlog) EXPORT_SYMBOL_GPL(dccp_recvmsg);
int inet_dccp_listen(struct socket *sock, int backlog)
{ {
struct sock *sk = sock->sk; struct sock *sk = sock->sk;
unsigned char old_state; unsigned char old_state;
...@@ -546,6 +564,8 @@ out: ...@@ -546,6 +564,8 @@ out:
return err; return err;
} }
EXPORT_SYMBOL_GPL(inet_dccp_listen);
static const unsigned char dccp_new_state[] = { static const unsigned char dccp_new_state[] = {
/* current state: new state: action: */ /* current state: new state: action: */
[0] = DCCP_CLOSED, [0] = DCCP_CLOSED,
...@@ -651,11 +671,15 @@ adjudge_to_death: ...@@ -651,11 +671,15 @@ adjudge_to_death:
sock_put(sk); sock_put(sk);
} }
EXPORT_SYMBOL_GPL(dccp_close);
void dccp_shutdown(struct sock *sk, int how) void dccp_shutdown(struct sock *sk, int how)
{ {
dccp_pr_debug("entry\n"); dccp_pr_debug("entry\n");
} }
EXPORT_SYMBOL_GPL(dccp_shutdown);
static struct proto_ops inet_dccp_ops = { static struct proto_ops inet_dccp_ops = {
.family = PF_INET, .family = PF_INET,
.owner = THIS_MODULE, .owner = THIS_MODULE,
...@@ -763,6 +787,8 @@ MODULE_PARM_DESC(thash_entries, "Number of ehash buckets"); ...@@ -763,6 +787,8 @@ MODULE_PARM_DESC(thash_entries, "Number of ehash buckets");
int dccp_debug; int dccp_debug;
module_param(dccp_debug, int, 0444); module_param(dccp_debug, int, 0444);
MODULE_PARM_DESC(dccp_debug, "Enable debug messages"); MODULE_PARM_DESC(dccp_debug, "Enable debug messages");
EXPORT_SYMBOL_GPL(dccp_debug);
#endif #endif
static int __init dccp_init(void) static int __init dccp_init(void)
......
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