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Commit e5e956d0 authored by Sridhar Samudrala's avatar Sridhar Samudrala
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Merge us.ibm.com:/home/sridhar/BK/linux-2.5.64 

into us.ibm.com:/home/sridhar/BK/lksctp-2.5.64
parents 236b5445 56d10bed
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Showing with 1057 additions and 529 deletions
include/net/sctp/command.h
View file @ e5e956d0
......@@ -110,13 +110,13 @@ typedef union {
sctp_event_timeout_t to;
sctp_counter_t counter;
void *ptr;
sctp_chunk_t *chunk;
sctp_association_t *asoc;
struct sctp_chunk *chunk;
struct sctp_association *asoc;
struct sctp_transport *transport;
sctp_bind_addr_t *bp;
struct sctp_bind_addr *bp;
sctp_init_chunk_t *init;
struct sctp_ulpevent *ulpevent;
sctp_packet_t *packet;
struct sctp_packet *packet;
sctp_sackhdr_t *sackh;
} sctp_arg_t;
......@@ -158,13 +158,13 @@ SCTP_ARG_CONSTRUCTOR(STATE, sctp_state_t, state)
SCTP_ARG_CONSTRUCTOR(COUNTER, sctp_counter_t, counter)
SCTP_ARG_CONSTRUCTOR(TO, sctp_event_timeout_t, to)
SCTP_ARG_CONSTRUCTOR(PTR, void *, ptr)
SCTP_ARG_CONSTRUCTOR(CHUNK, sctp_chunk_t *, chunk)
SCTP_ARG_CONSTRUCTOR(ASOC, sctp_association_t *, asoc)
SCTP_ARG_CONSTRUCTOR(CHUNK, struct sctp_chunk *, chunk)
SCTP_ARG_CONSTRUCTOR(ASOC, struct sctp_association *, asoc)
SCTP_ARG_CONSTRUCTOR(TRANSPORT, struct sctp_transport *, transport)
SCTP_ARG_CONSTRUCTOR(BA, sctp_bind_addr_t *, bp)
SCTP_ARG_CONSTRUCTOR(BA, struct sctp_bind_addr *, bp)
SCTP_ARG_CONSTRUCTOR(PEER_INIT, sctp_init_chunk_t *, init)
SCTP_ARG_CONSTRUCTOR(ULPEVENT, struct sctp_ulpevent *, ulpevent)
SCTP_ARG_CONSTRUCTOR(PACKET, sctp_packet_t *, packet)
SCTP_ARG_CONSTRUCTOR(PACKET, struct sctp_packet *, packet)
SCTP_ARG_CONSTRUCTOR(SACKH, sctp_sackhdr_t *, sackh)
typedef struct {
......
include/net/sctp/constants.h
View file @ e5e956d0
......@@ -210,14 +210,19 @@ typedef enum {
/* These are values for sk->state.
* For a UDP-style SCTP socket, the states are defined as follows
* (at this point of time, may change later after more discussions: FIXME)
* A socket in SCTP_SS_UNCONNECTED state indicates that it is not willing
* to accept new associations, but it can initiate the creation of new
* ones.
* A socket in SCTP_SS_LISTENING state indicates that it is willing to
* accept new associations and can initiate the creation of new ones.
* A socket in SCTP_SS_ESTABLISHED state indicates that it is a peeled off
* socket with one association.
* - A socket in SCTP_SS_CLOSED state indicates that it is not willing to
* accept new associations, but it can initiate the creation of new ones.
* - A socket in SCTP_SS_LISTENING state indicates that it is willing to
* accept new associations and can initiate the creation of new ones.
* - A socket in SCTP_SS_ESTABLISHED state indicates that it is a peeled off
* socket with one association.
* For a TCP-style SCTP socket, the states are defined as follows
* - A socket in SCTP_SS_CLOSED state indicates that it is not willing to
* accept new associations, but it can initiate the creation of new ones.
* - A socket in SCTP_SS_LISTENING state indicates that it is willing to
* accept new associations, but cannot initiate the creation of new ones.
* - A socket in SCTP_SS_ESTABLISHED state indicates that it has a single
* association in ESTABLISHED state.
*/
typedef enum {
SCTP_SS_CLOSED = TCP_CLOSE,
......@@ -345,6 +350,7 @@ typedef enum {
SCTP_XMIT_PMTU_FULL,
SCTP_XMIT_RWND_FULL,
SCTP_XMIT_MUST_FRAG,
SCTP_XMIT_NAGLE_DELAY,
} sctp_xmit_t;
/* These are the commands for manipulating transports. */
......
include/net/sctp/sctp.h
View file @ e5e956d0
......@@ -121,9 +121,10 @@
/*
* sctp_protocol.c
*/
extern sctp_protocol_t sctp_proto;
extern struct sctp_protocol sctp_proto;
extern struct sock *sctp_get_ctl_sock(void);
extern int sctp_copy_local_addr_list(sctp_protocol_t *, sctp_bind_addr_t *,
extern int sctp_copy_local_addr_list(struct sctp_protocol *,
struct sctp_bind_addr *,
sctp_scope_t, int priority, int flags);
extern struct sctp_pf *sctp_get_pf_specific(sa_family_t family);
extern int sctp_register_pf(struct sctp_pf *, sa_family_t);
......@@ -312,30 +313,21 @@ static inline void sctp_sysctl_unregister(void) { return; }
#endif
/* Size of Supported Address Parameter for 'x' address types. */
#define SCTP_SAT_LEN(x) (sizeof(struct sctp_paramhdr) + (x) * sizeof(__u16))
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
extern int sctp_v6_init(void);
extern void sctp_v6_exit(void);
static inline int sctp_ipv6_addr_type(const struct in6_addr *addr)
{
return ipv6_addr_type((struct in6_addr*) addr);
}
#define SCTP_SAT_LEN (sizeof(sctp_paramhdr_t) + 2 * sizeof(__u16))
/* Note: These V6 macros are obsolescent. */
/* Use this macro to enclose code fragments which are V6-dependent. */
#define SCTP_V6(m...) m
#define SCTP_V6_SUPPORT 1
#else /* #ifdef defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
#define sctp_ipv6_addr_type(a) 0
#define SCTP_SAT_LEN (sizeof(sctp_paramhdr_t) + 1 * sizeof(__u16))
#define SCTP_V6(m...) /* Do nothing. */
#undef SCTP_V6_SUPPORT
static inline int sctp_v6_init(void) { return 0; }
static inline void sctp_v6_exit(void) { return; }
......@@ -348,25 +340,10 @@ static inline sctp_assoc_t sctp_assoc2id(const sctp_association_t *asoc)
return (sctp_assoc_t) asoc;
}
/* Look up the association by its id. */
static inline sctp_association_t *sctp_id2assoc(const struct sock *sk, sctp_assoc_t id)
{
sctp_association_t *asoc = NULL;
/* First, verify that this is a kernel address. */
if (sctp_is_valid_kaddr((unsigned long) id)) {
sctp_association_t *temp = (sctp_association_t *) id;
/* Verify that this _is_ an sctp_association_t
* data structure and if so, that the socket matches.
*/
if ((SCTP_ASSOC_EYECATCHER == temp->eyecatcher) &&
(temp->base.sk == sk))
asoc = temp;
}
sctp_association_t *sctp_id2assoc(struct sock *sk, sctp_assoc_t id);
return asoc;
}
/* A macro to walk a list of skbs. */
#define sctp_skb_for_each(pos, head, tmp) \
......@@ -494,7 +471,7 @@ extern void sctp_put_port(struct sock *sk);
/* Static inline functions. */
/* Return the SCTP protocol structure. */
static inline sctp_protocol_t *sctp_get_protocol(void)
static inline struct sctp_protocol *sctp_get_protocol(void)
{
return &sctp_proto;
}
......@@ -523,21 +500,21 @@ static inline int ipver2af(__u8 ipver)
/* This is the hash function for the SCTP port hash table. */
static inline int sctp_phashfn(__u16 lport)
{
sctp_protocol_t *sctp_proto = sctp_get_protocol();
struct sctp_protocol *sctp_proto = sctp_get_protocol();
return (lport & (sctp_proto->port_hashsize - 1));
}
/* This is the hash function for the endpoint hash table. */
static inline int sctp_ep_hashfn(__u16 lport)
{
sctp_protocol_t *sctp_proto = sctp_get_protocol();
struct sctp_protocol *sctp_proto = sctp_get_protocol();
return (lport & (sctp_proto->ep_hashsize - 1));
}
/* This is the hash function for the association hash table. */
static inline int sctp_assoc_hashfn(__u16 lport, __u16 rport)
{
sctp_protocol_t *sctp_proto = sctp_get_protocol();
struct sctp_protocol *sctp_proto = sctp_get_protocol();
int h = (lport << 16) + rport;
h ^= h>>8;
return (h & (sctp_proto->assoc_hashsize - 1));
......@@ -549,7 +526,7 @@ static inline int sctp_assoc_hashfn(__u16 lport, __u16 rport)
*/
static inline int sctp_vtag_hashfn(__u16 lport, __u16 rport, __u32 vtag)
{
sctp_protocol_t *sctp_proto = sctp_get_protocol();
struct sctp_protocol *sctp_proto = sctp_get_protocol();
int h = (lport << 16) + rport;
h ^= vtag;
return (h & (sctp_proto->assoc_hashsize-1));
......
include/net/sctp/sm.h
View file @ e5e956d0
......@@ -3,40 +3,40 @@
* Copyright (c) 1999-2001 Motorola, Inc.
* Copyright (c) 2001 Intel Corp.
* Copyright (c) 2001-2002 International Business Machines Corp.
*
*
* This file is part of the SCTP kernel reference Implementation
*
*
* This file is part of the implementation of the add-IP extension,
* based on <draft-ietf-tsvwg-addip-sctp-02.txt> June 29, 2001,
* for the SCTP kernel reference Implementation.
*
*
* These are definitions needed by the state machine.
*
* The SCTP reference implementation is free software;
* you can redistribute it and/or modify it under the terms of
*
* The SCTP reference 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
*
* The SCTP reference 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.
* See the GNU General Public License for more details.
*
*
* You should have received a copy of the GNU General Public License
* along with GNU CC; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Boston, MA 02111-1307, USA.
*
* Please send any bug reports or fixes you make to the
* email addresses:
* lksctp developers <lksctp-developers@lists.sourceforge.net>
*
*
* Or submit a bug report through the following website:
* http://www.sf.net/projects/lksctp
*
* Written or modified by:
* Written or modified by:
* La Monte H.P. Yarroll <piggy@acm.org>
* Karl Knutson <karl@athena.chicago.il.us>
* Xingang Guo <xingang.guo@intel.com>
......@@ -313,18 +313,18 @@ void sctp_generate_t3_rtx_event(unsigned long peer);
void sctp_generate_heartbeat_event(unsigned long peer);
sctp_sackhdr_t *sctp_sm_pull_sack(sctp_chunk_t *);
sctp_packet_t *sctp_abort_pkt_new(const sctp_endpoint_t *ep,
const sctp_association_t *asoc,
sctp_chunk_t *chunk,
const void *payload,
size_t paylen);
sctp_packet_t *sctp_ootb_pkt_new(const sctp_association_t *asoc,
const sctp_chunk_t *chunk);
void sctp_ootb_pkt_free(sctp_packet_t *packet);
struct sctp_packet *sctp_abort_pkt_new(const struct sctp_endpoint *,
const struct sctp_association *,
struct sctp_chunk *chunk,
const void *payload,
size_t paylen);
struct sctp_packet *sctp_ootb_pkt_new(const struct sctp_association *,
const struct sctp_chunk *);
void sctp_ootb_pkt_free(struct sctp_packet *);
sctp_cookie_param_t *
sctp_pack_cookie(const sctp_endpoint_t *, const sctp_association_t *,
const sctp_chunk_t *, int *cookie_len,
sctp_pack_cookie(const struct sctp_endpoint *, const struct sctp_association *,
const struct sctp_chunk *, int *cookie_len,
const __u8 *, int addrs_len);
sctp_association_t *sctp_unpack_cookie(const sctp_endpoint_t *,
const sctp_association_t *,
......
include/net/sctp/structs.h
View file @ e5e956d0
......@@ -86,10 +86,8 @@ struct sctp_opt;
struct sctp_endpoint_common;
struct sctp_ssnmap;
typedef struct sctp_protocol sctp_protocol_t;
typedef struct sctp_endpoint sctp_endpoint_t;
typedef struct sctp_association sctp_association_t;
typedef struct sctp_packet sctp_packet_t;
typedef struct sctp_chunk sctp_chunk_t;
typedef struct sctp_bind_addr sctp_bind_addr_t;
typedef struct sctp_endpoint_common sctp_endpoint_common_t;
......@@ -222,7 +220,7 @@ struct sctp_af {
void (*get_saddr) (struct sctp_association *asoc,
struct dst_entry *dst,
union sctp_addr *daddr,
union sctp_addr *saddr);
union sctp_addr *saddr);
void (*copy_addrlist) (struct list_head *,
struct net_device *);
void (*dst_saddr) (union sctp_addr *saddr,
......@@ -262,6 +260,9 @@ struct sctp_pf {
const union sctp_addr *,
struct sctp_opt *);
int (*bind_verify) (struct sctp_opt *, union sctp_addr *);
int (*supported_addrs)(const struct sctp_opt *, __u16 *);
struct sock *(*create_accept_sk) (struct sock *sk,
struct sctp_association *asoc);
struct sctp_af *af;
};
......@@ -366,8 +367,6 @@ typedef struct sctp_signed_cookie {
sctp_cookie_t c;
} sctp_signed_cookie_t;
/* This is another convenience type to allocate memory for address
* params for the maximum size and pass such structures around
* internally.
......@@ -604,26 +603,26 @@ struct sctp_packet {
typedef int (sctp_outq_thandler_t)(struct sctp_outq *, void *);
typedef int (sctp_outq_ehandler_t)(struct sctp_outq *);
typedef sctp_packet_t *(sctp_outq_ohandler_init_t)
(sctp_packet_t *,
typedef struct sctp_packet *(sctp_outq_ohandler_init_t)
(struct sctp_packet *,
struct sctp_transport *,
__u16 sport,
__u16 dport);
typedef sctp_packet_t *(sctp_outq_ohandler_config_t)
(sctp_packet_t *,
typedef struct sctp_packet *(sctp_outq_ohandler_config_t)
(struct sctp_packet *,
__u32 vtag,
int ecn_capable,
sctp_packet_phandler_t *get_prepend_chunk);
typedef sctp_xmit_t (sctp_outq_ohandler_t)(sctp_packet_t *,
typedef sctp_xmit_t (sctp_outq_ohandler_t)(struct sctp_packet *,
sctp_chunk_t *);
typedef int (sctp_outq_ohandler_force_t)(sctp_packet_t *);
typedef int (sctp_outq_ohandler_force_t)(struct sctp_packet *);
sctp_outq_ohandler_init_t sctp_packet_init;
sctp_outq_ohandler_config_t sctp_packet_config;
sctp_outq_ohandler_t sctp_packet_append_chunk;
sctp_outq_ohandler_t sctp_packet_transmit_chunk;
sctp_outq_ohandler_force_t sctp_packet_transmit;
void sctp_packet_free(sctp_packet_t *);
void sctp_packet_free(struct sctp_packet *);
/* This represents a remote transport address.
......@@ -789,7 +788,7 @@ struct sctp_transport {
struct list_head transmitted;
/* We build bundle-able packets for this transport here. */
sctp_packet_t packet;
struct sctp_packet packet;
/* This is the list of transports that have chunks to send. */
struct list_head send_ready;
......@@ -865,12 +864,11 @@ void sctp_inq_set_th_handler(struct sctp_inq *, void (*)(void *), void *);
struct sctp_outq {
sctp_association_t *asoc;
/* BUG: This really should be an array of streams.
* This really holds a list of chunks (one stream).
* FIXME: If true, why so?
*/
/* Data pending that has never been transmitted. */
struct sk_buff_head out;
unsigned out_qlen; /* Total length of queued data chunks. */
/* These are control chunks we want to send. */
struct sk_buff_head control;
......@@ -885,7 +883,7 @@ struct sctp_outq {
struct list_head retransmit;
/* Call these functions to send chunks down to the next lower
* layer. This is always SCTP_packet, but we separate the two
* layer. This is always sctp_packet, but we separate the two
* structures to make testing simpler.
*/
sctp_outq_ohandler_init_t *init_output;
......@@ -1098,8 +1096,9 @@ static inline sctp_endpoint_t *sctp_ep(sctp_endpoint_common_t *base)
}
/* These are function signatures for manipulating endpoints. */
sctp_endpoint_t *sctp_endpoint_new(sctp_protocol_t *, struct sock *, int);
sctp_endpoint_t *sctp_endpoint_init(sctp_endpoint_t *, sctp_protocol_t *,
sctp_endpoint_t *sctp_endpoint_new(struct sctp_protocol *, struct sock *, int);
sctp_endpoint_t *sctp_endpoint_init(struct sctp_endpoint *,
struct sctp_protocol *,
struct sock *, int priority);
void sctp_endpoint_free(sctp_endpoint_t *);
void sctp_endpoint_put(sctp_endpoint_t *);
......@@ -1111,7 +1110,6 @@ sctp_association_t *sctp_endpoint_lookup_assoc(const sctp_endpoint_t *ep,
int sctp_endpoint_is_peeled_off(sctp_endpoint_t *, const union sctp_addr *);
sctp_endpoint_t *sctp_endpoint_is_match(sctp_endpoint_t *,
const union sctp_addr *);
int sctp_has_association(const union sctp_addr *laddr,
const union sctp_addr *paddr);
......@@ -1587,7 +1585,7 @@ struct sctp_transport *sctp_assoc_lookup_paddr(const sctp_association_t *,
struct sctp_transport *sctp_assoc_add_peer(sctp_association_t *,
const union sctp_addr *address,
const int priority);
void sctp_assoc_control_transport(sctp_association_t *,
void sctp_assoc_control_transport(struct sctp_association *,
struct sctp_transport *,
sctp_transport_cmd_t, sctp_sn_error_t);
struct sctp_transport *sctp_assoc_lookup_tsn(sctp_association_t *, __u32);
......@@ -1597,14 +1595,14 @@ struct sctp_transport *sctp_assoc_is_match(sctp_association_t *,
void sctp_assoc_migrate(sctp_association_t *, struct sock *);
void sctp_assoc_update(sctp_association_t *dst, sctp_association_t *src);
__u32 __sctp_association_get_next_tsn(sctp_association_t *);
__u32 __sctp_association_get_tsn_block(sctp_association_t *, int);
__u16 __sctp_association_get_next_ssn(sctp_association_t *, __u16 sid);
void sctp_assoc_sync_pmtu(sctp_association_t *);
void sctp_assoc_rwnd_increase(sctp_association_t *, int);
void sctp_assoc_rwnd_decrease(sctp_association_t *, int);
__u32 sctp_association_get_next_tsn(struct sctp_association *);
__u32 sctp_association_get_tsn_block(struct sctp_association *, int);
void sctp_assoc_sync_pmtu(struct sctp_association *);
void sctp_assoc_rwnd_increase(struct sctp_association *, int);
void sctp_assoc_rwnd_decrease(struct sctp_association *, int);
void sctp_assoc_set_primary(struct sctp_association *,
struct sctp_transport *);
int sctp_assoc_set_bind_addr_from_ep(sctp_association_t *, int);
int sctp_assoc_set_bind_addr_from_cookie(sctp_association_t *,
sctp_cookie_t *, int);
......
include/net/sctp/user.h
View file @ e5e956d0
......@@ -108,6 +108,8 @@ enum sctp_optname {
#define SCTP_GET_LOCAL_ADDRS_NUM SCTP_GET_LOCAL_ADDRS_NUM
SCTP_GET_LOCAL_ADDRS, /* Get all local addresss. */
#define SCTP_GET_LOCAL_ADDRS SCTP_GET_LOCAL_ADDRS
SCTP_NODELAY, /* Get/set nodelay option. */
#define SCTP_NODELAY SCTP_NODELAY
};
......
net/sctp/associola.c
View file @ e5e956d0
......@@ -181,7 +181,7 @@ sctp_association_t *sctp_association_init(sctp_association_t *asoc,
else
asoc->rwnd = sk->rcvbuf;
asoc->a_rwnd = 0;
asoc->a_rwnd = asoc->rwnd;
asoc->rwnd_over = 0;
......@@ -360,9 +360,25 @@ static void sctp_association_destroy(sctp_association_t *asoc)
}
}
/* Change the primary destination address for the peer. */
void sctp_assoc_set_primary(struct sctp_association *asoc,
struct sctp_transport *transport)
{
asoc->peer.primary_path = transport;
/* Set a default msg_name for events. */
memcpy(&asoc->peer.primary_addr, &transport->ipaddr,
sizeof(union sctp_addr));
/* If the primary path is changing, assume that the
* user wants to use this new path.
*/
if (transport->active)
asoc->peer.active_path = transport;
}
/* Add a transport address to an association. */
struct sctp_transport *sctp_assoc_add_peer(sctp_association_t *asoc,
struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
const union sctp_addr *addr,
int priority)
{
......@@ -397,17 +413,16 @@ struct sctp_transport *sctp_assoc_add_peer(sctp_association_t *asoc,
* If not and the current association PMTU is higher than the new
* peer's PMTU, reset the association PMTU to the new peer's PMTU.
*/
if (asoc->pmtu) {
if (asoc->pmtu)
asoc->pmtu = min_t(int, peer->pmtu, asoc->pmtu);
} else {
else
asoc->pmtu = peer->pmtu;
}
SCTP_DEBUG_PRINTK("sctp_assoc_add_peer:association %p PMTU set to "
"%d\n", asoc, asoc->pmtu);
asoc->frag_point = asoc->pmtu -
(SCTP_IP_OVERHEAD + sizeof(sctp_data_chunk_t));
asoc->frag_point = asoc->pmtu;
asoc->frag_point -= SCTP_IP_OVERHEAD + sizeof(struct sctp_data_chunk);
/* The asoc->peer.port might not be meaningful yet, but
* initialize the packet structure anyway.
......@@ -460,11 +475,7 @@ struct sctp_transport *sctp_assoc_add_peer(sctp_association_t *asoc,
/* If we do not yet have a primary path, set one. */
if (NULL == asoc->peer.primary_path) {
asoc->peer.primary_path = peer;
/* Set a default msg_name for events. */
memcpy(&asoc->peer.primary_addr, &peer->ipaddr,
sizeof(union sctp_addr));
asoc->peer.active_path = peer;
sctp_assoc_set_primary(asoc, peer);
asoc->peer.retran_path = peer;
}
......@@ -603,7 +614,7 @@ void sctp_association_put(sctp_association_t *asoc)
/* Allocate the next TSN, Transmission Sequence Number, for the given
* association.
*/
__u32 __sctp_association_get_next_tsn(sctp_association_t *asoc)
__u32 sctp_association_get_next_tsn(sctp_association_t *asoc)
{
/* From Section 1.6 Serial Number Arithmetic:
* Transmission Sequence Numbers wrap around when they reach
......@@ -618,7 +629,7 @@ __u32 __sctp_association_get_next_tsn(sctp_association_t *asoc)
}
/* Allocate 'num' TSNs by incrementing the association's TSN by num. */
__u32 __sctp_association_get_tsn_block(sctp_association_t *asoc, int num)
__u32 sctp_association_get_tsn_block(sctp_association_t *asoc, int num)
{
__u32 retval = asoc->next_tsn;
......@@ -942,7 +953,7 @@ struct sctp_transport *sctp_assoc_choose_shutdown_transport(sctp_association_t *
{
/* If this is the first time SHUTDOWN is sent, use the active path,
* else use the retran path. If the last SHUTDOWN was sent over the
* retran path, update the retran path and use it.
* retran path, update the retran path and use it.
*/
if (!asoc->shutdown_last_sent_to)
return asoc->peer.active_path;
......@@ -983,6 +994,24 @@ void sctp_assoc_sync_pmtu(sctp_association_t *asoc)
__FUNCTION__, asoc, asoc->pmtu, asoc->frag_point);
}
/* Should we send a SACK to update our peer? */
static inline int sctp_peer_needs_update(struct sctp_association *asoc)
{
switch (asoc->state) {
case SCTP_STATE_ESTABLISHED:
case SCTP_STATE_SHUTDOWN_PENDING:
case SCTP_STATE_SHUTDOWN_RECEIVED:
if ((asoc->rwnd > asoc->a_rwnd) &&
((asoc->rwnd - asoc->a_rwnd) >=
min_t(__u32, (asoc->base.sk->rcvbuf >> 1), asoc->pmtu)))
return 1;
break;
default:
break;
}
return 0;
}
/* Increase asoc's rwnd by len and send any window update SACK if needed. */
void sctp_assoc_rwnd_increase(sctp_association_t *asoc, int len)
{
......@@ -1009,10 +1038,8 @@ void sctp_assoc_rwnd_increase(sctp_association_t *asoc, int len)
* The algorithm used is similar to the one described in
* Section 4.2.3.3 of RFC 1122.
*/
if ((asoc->state == SCTP_STATE_ESTABLISHED) &&
(asoc->rwnd > asoc->a_rwnd) &&
((asoc->rwnd - asoc->a_rwnd) >=
min_t(__u32, (asoc->base.sk->rcvbuf >> 1), asoc->pmtu))) {
if (sctp_peer_needs_update(asoc)) {
asoc->a_rwnd = asoc->rwnd;
SCTP_DEBUG_PRINTK("%s: Sending window update SACK- asoc: %p "
"rwnd: %u a_rwnd: %u\n", __FUNCTION__,
asoc, asoc->rwnd, asoc->a_rwnd);
......@@ -1020,9 +1047,6 @@ void sctp_assoc_rwnd_increase(sctp_association_t *asoc, int len)
if (!sack)
return;
/* Update the last advertised rwnd value. */
asoc->a_rwnd = asoc->rwnd;
asoc->peer.sack_needed = 0;
sctp_outq_tail(&asoc->outqueue, sack);
......@@ -1046,7 +1070,8 @@ void sctp_assoc_rwnd_decrease(sctp_association_t *asoc, int len)
asoc->rwnd = 0;
}
SCTP_DEBUG_PRINTK("%s: asoc %p rwnd decreased by %d to (%u, %u)\n",
__FUNCTION__, asoc, len, asoc->rwnd, asoc->rwnd_over);
__FUNCTION__, asoc, len, asoc->rwnd,
asoc->rwnd_over);
}
/* Build the bind address list for the association based on info from the
......
net/sctp/bind_addr.c
View file @ e5e956d0
......@@ -302,7 +302,7 @@ int sctp_bind_addr_match(sctp_bind_addr_t *bp, const union sctp_addr *addr,
static int sctp_copy_one_addr(sctp_bind_addr_t *dest, union sctp_addr *addr,
sctp_scope_t scope, int priority, int flags)
{
sctp_protocol_t *proto = sctp_get_protocol();
struct sctp_protocol *proto = sctp_get_protocol();
int error = 0;
if (sctp_is_any(addr)) {
......
net/sctp/endpointola.c
View file @ e5e956d0
......@@ -65,7 +65,7 @@ static void sctp_endpoint_bh_rcv(sctp_endpoint_t *ep);
/* Create a sctp_endpoint_t with all that boring stuff initialized.
* Returns NULL if there isn't enough memory.
*/
sctp_endpoint_t *sctp_endpoint_new(sctp_protocol_t *proto,
sctp_endpoint_t *sctp_endpoint_new(struct sctp_protocol *proto,
struct sock *sk, int priority)
{
sctp_endpoint_t *ep;
......@@ -89,7 +89,8 @@ sctp_endpoint_t *sctp_endpoint_new(sctp_protocol_t *proto,
/*
* Initialize the base fields of the endpoint structure.
*/
sctp_endpoint_t *sctp_endpoint_init(sctp_endpoint_t *ep, sctp_protocol_t *proto,
sctp_endpoint_t *sctp_endpoint_init(sctp_endpoint_t *ep,
struct sctp_protocol *proto,
struct sock *sk, int priority)
{
struct sctp_opt *sp = sctp_sk(sk);
......@@ -194,6 +195,8 @@ void sctp_endpoint_destroy(sctp_endpoint_t *ep)
{
SCTP_ASSERT(ep->base.dead, "Endpoint is not dead", return);
ep->base.sk->state = SCTP_SS_CLOSED;
/* Unlink this endpoint, so we can't find it again! */
sctp_unhash_endpoint(ep);
......
net/sctp/ipv6.c
View file @ e5e956d0
......@@ -432,6 +432,62 @@ static sctp_scope_t sctp_v6_scope(union sctp_addr *addr)
return retval;
}
/* Create and initialize a new sk for the socket to be returned by accept(). */
struct sock *sctp_v6_create_accept_sk(struct sock *sk,
struct sctp_association *asoc)
{
struct inet_opt *inet = inet_sk(sk);
struct sock *newsk;
struct inet_opt *newinet;
struct ipv6_pinfo *newnp, *np = inet6_sk(sk);
struct sctp6_sock *newsctp6sk;
newsk = sk_alloc(PF_INET6, GFP_KERNEL, sizeof(struct sctp6_sock),
sk->slab);
if (!newsk)
goto out;
sock_init_data(NULL, newsk);
newsk->type = SOCK_STREAM;
newsk->prot = sk->prot;
newsk->no_check = sk->no_check;
newsk->reuse = sk->reuse;
newsk->destruct = inet_sock_destruct;
newsk->zapped = 0;
newsk->family = PF_INET6;
newsk->protocol = IPPROTO_SCTP;
newsk->backlog_rcv = sk->prot->backlog_rcv;
newsctp6sk = (struct sctp6_sock *)newsk;
newsctp6sk->pinet6 = &newsctp6sk->inet6;
newinet = inet_sk(newsk);
newnp = inet6_sk(newsk);
memcpy(newnp, np, sizeof(struct ipv6_pinfo));
ipv6_addr_copy(&newnp->daddr, &asoc->peer.primary_addr.v6.sin6_addr);
newinet->sport = inet->sport;
newinet->dport = asoc->peer.port;
#ifdef INET_REFCNT_DEBUG
atomic_inc(&inet6_sock_nr);
atomic_inc(&inet_sock_nr);
#endif
if (0 != newsk->prot->init(newsk)) {
inet_sock_release(newsk);
newsk = NULL;
}
out:
return newsk;
}
/* Initialize a PF_INET6 socket msg_name. */
static void sctp_inet6_msgname(char *msgname, int *addr_len)
{
......@@ -564,6 +620,20 @@ static int sctp_inet6_bind_verify(struct sctp_opt *opt, union sctp_addr *addr)
return af->available(addr);
}
/* Fill in Supported Address Type information for INIT and INIT-ACK
* chunks. Note: In the future, we may want to look at sock options
* to determine whether a PF_INET6 socket really wants to have IPV4
* addresses.
* Returns number of addresses supported.
*/
static int sctp_inet6_supported_addrs(const struct sctp_opt *opt,
__u16 *types)
{
types[0] = SCTP_PARAM_IPV4_ADDRESS;
types[1] = SCTP_PARAM_IPV6_ADDRESS;
return 2;
}
static struct proto_ops inet6_seqpacket_ops = {
.family = PF_INET6,
.release = inet6_release,
......@@ -583,7 +653,7 @@ static struct proto_ops inet6_seqpacket_ops = {
.mmap = sock_no_mmap,
};
static struct inet_protosw sctpv6_protosw = {
static struct inet_protosw sctpv6_seqpacket_protosw = {
.type = SOCK_SEQPACKET,
.protocol = IPPROTO_SCTP,
.prot = &sctp_prot,
......@@ -592,6 +662,15 @@ static struct inet_protosw sctpv6_protosw = {
.no_check = 0,
.flags = SCTP_PROTOSW_FLAG
};
static struct inet_protosw sctpv6_stream_protosw = {
.type = SOCK_STREAM,
.protocol = IPPROTO_SCTP,
.prot = &sctp_prot,
.ops = &inet6_seqpacket_ops,
.capability = -1,
.no_check = 0,
.flags = SCTP_PROTOSW_FLAG
};
static struct inet6_protocol sctpv6_protocol = {
.handler = sctp_rcv,
......@@ -626,6 +705,8 @@ static struct sctp_pf sctp_pf_inet6_specific = {
.af_supported = sctp_inet6_af_supported,
.cmp_addr = sctp_inet6_cmp_addr,
.bind_verify = sctp_inet6_bind_verify,
.supported_addrs = sctp_inet6_supported_addrs,
.create_accept_sk = sctp_v6_create_accept_sk,
.af = &sctp_ipv6_specific,
};
......@@ -636,8 +717,9 @@ int sctp_v6_init(void)
if (inet6_add_protocol(&sctpv6_protocol, IPPROTO_SCTP) < 0)
return -EAGAIN;
/* Add SCTPv6 to inetsw6 linked list. */
inet6_register_protosw(&sctpv6_protosw);
/* Add SCTPv6(UDP and TCP style) to inetsw6 linked list. */
inet6_register_protosw(&sctpv6_seqpacket_protosw);
inet6_register_protosw(&sctpv6_stream_protosw);
/* Register the SCTP specfic PF_INET6 functions. */
sctp_register_pf(&sctp_pf_inet6_specific, PF_INET6);
......@@ -656,6 +738,7 @@ void sctp_v6_exit(void)
{
list_del(&sctp_ipv6_specific.list);
inet6_del_protocol(&sctpv6_protocol, IPPROTO_SCTP);
inet6_unregister_protosw(&sctpv6_protosw);
inet6_unregister_protosw(&sctpv6_seqpacket_protosw);
inet6_unregister_protosw(&sctpv6_stream_protosw);
unregister_inet6addr_notifier(&sctp_inetaddr_notifier);
}
net/sctp/output.c
View file @ e5e956d0
......@@ -62,17 +62,16 @@
#include <net/sctp/sm.h>
/* Forward declarations for private helpers. */
static void sctp_packet_reset(sctp_packet_t *packet);
static sctp_xmit_t sctp_packet_append_data(sctp_packet_t *packet,
sctp_chunk_t *chunk);
static void sctp_packet_reset(struct sctp_packet *packet);
static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
struct sctp_chunk *chunk);
/* Config a packet.
* This appears to be a followup set of initializations.)
*/
sctp_packet_t *sctp_packet_config(sctp_packet_t *packet,
__u32 vtag,
int ecn_capable,
sctp_packet_phandler_t *prepend_handler)
struct sctp_packet *sctp_packet_config(struct sctp_packet *packet,
__u32 vtag, int ecn_capable,
sctp_packet_phandler_t *prepend_handler)
{
int packet_empty = (packet->size == SCTP_IP_OVERHEAD);
......@@ -89,10 +88,9 @@ sctp_packet_t *sctp_packet_config(sctp_packet_t *packet,
}
/* Initialize the packet structure. */
sctp_packet_t *sctp_packet_init(sctp_packet_t *packet,
struct sctp_transport *transport,
__u16 sport,
__u16 dport)
struct sctp_packet *sctp_packet_init(struct sctp_packet *packet,
struct sctp_transport *transport,
__u16 sport, __u16 dport)
{
packet->transport = transport;
packet->source_port = sport;
......@@ -109,14 +107,12 @@ sctp_packet_t *sctp_packet_init(sctp_packet_t *packet,
}
/* Free a packet. */
void sctp_packet_free(sctp_packet_t *packet)
void sctp_packet_free(struct sctp_packet *packet)
{
sctp_chunk_t *chunk;
struct sctp_chunk *chunk;
while (NULL !=
(chunk = (sctp_chunk_t *)skb_dequeue(&packet->chunks))) {
while ((chunk = (struct sctp_chunk *)__skb_dequeue(&packet->chunks)))
sctp_free_chunk(chunk);
}
if (packet->malloced)
kfree(packet);
......@@ -129,8 +125,8 @@ void sctp_packet_free(sctp_packet_t *packet)
* as it can fit in the packet, but any more data that does not fit in this
* packet can be sent only after receiving the COOKIE_ACK.
*/
sctp_xmit_t sctp_packet_transmit_chunk(sctp_packet_t *packet,
sctp_chunk_t *chunk)
sctp_xmit_t sctp_packet_transmit_chunk(struct sctp_packet *packet,
struct sctp_chunk *chunk)
{
sctp_xmit_t retval;
int error = 0;
......@@ -152,6 +148,7 @@ sctp_xmit_t sctp_packet_transmit_chunk(sctp_packet_t *packet,
case SCTP_XMIT_MUST_FRAG:
case SCTP_XMIT_RWND_FULL:
case SCTP_XMIT_OK:
case SCTP_XMIT_NAGLE_DELAY:
break;
};
......@@ -161,7 +158,8 @@ sctp_xmit_t sctp_packet_transmit_chunk(sctp_packet_t *packet,
/* Append a chunk to the offered packet reporting back any inability to do
* so.
*/
sctp_xmit_t sctp_packet_append_chunk(sctp_packet_t *packet, sctp_chunk_t *chunk)
sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *packet,
struct sctp_chunk *chunk)
{
sctp_xmit_t retval = SCTP_XMIT_OK;
__u16 chunk_len = WORD_ROUND(ntohs(chunk->chunk_hdr->length));
......@@ -182,7 +180,7 @@ sctp_xmit_t sctp_packet_append_chunk(sctp_packet_t *packet, sctp_chunk_t *chunk)
/* Both control chunks and data chunks with TSNs are
* non-fragmentable.
*/
int fragmentable = sctp_chunk_is_data(chunk) &&
int fragmentable = sctp_chunk_is_data(chunk) &&
(!chunk->has_tsn);
if (packet_empty) {
if (fragmentable) {
......@@ -223,7 +221,7 @@ sctp_xmit_t sctp_packet_append_chunk(sctp_packet_t *packet, sctp_chunk_t *chunk)
}
/* It is OK to send this chunk. */
skb_queue_tail(&packet->chunks, (struct sk_buff *)chunk);
__skb_queue_tail(&packet->chunks, (struct sk_buff *)chunk);
packet->size += chunk_len;
finish:
return retval;
......@@ -234,18 +232,18 @@ sctp_xmit_t sctp_packet_append_chunk(sctp_packet_t *packet, sctp_chunk_t *chunk)
*
* The return value is a normal kernel error return value.
*/
int sctp_packet_transmit(sctp_packet_t *packet)
int sctp_packet_transmit(struct sctp_packet *packet)
{
struct sctp_transport *transport = packet->transport;
sctp_association_t *asoc = transport->asoc;
struct sctp_association *asoc = transport->asoc;
struct sctphdr *sh;
__u32 crc32;
struct sk_buff *nskb;
sctp_chunk_t *chunk;
struct sctp_chunk *chunk;
struct sock *sk;
int err = 0;
int padding; /* How much padding do we need? */
__u8 packet_has_data = 0;
__u8 has_data = 0;
struct dst_entry *dst;
/* Do NOT generate a chunkless packet... */
......@@ -253,7 +251,7 @@ int sctp_packet_transmit(sctp_packet_t *packet)
return err;
/* Set up convenience variables... */
chunk = (sctp_chunk_t *) (packet->chunks.next);
chunk = (struct sctp_chunk *) (packet->chunks.next);
sk = chunk->skb->sk;
/* Allocate the new skb. */
......@@ -291,8 +289,7 @@ int sctp_packet_transmit(sctp_packet_t *packet)
* [This whole comment explains WORD_ROUND() below.]
*/
SCTP_DEBUG_PRINTK("***sctp_transmit_packet***\n");
while (NULL != (chunk = (sctp_chunk_t *)
skb_dequeue(&packet->chunks))) {
while ((chunk = (struct sctp_chunk *)__skb_dequeue(&packet->chunks))) {
chunk->num_times_sent++;
chunk->sent_at = jiffies;
if (sctp_chunk_is_data(chunk)) {
......@@ -309,7 +306,7 @@ int sctp_packet_transmit(sctp_packet_t *packet)
chunk->rtt_in_progress = 1;
transport->rto_pending = 1;
}
packet_has_data = 1;
has_data = 1;
}
memcpy(skb_put(nskb, chunk->skb->len),
chunk->skb->data, chunk->skb->len);
......@@ -399,7 +396,7 @@ int sctp_packet_transmit(sctp_packet_t *packet)
asoc->peer.last_sent_to = transport;
}
if (packet_has_data) {
if (has_data) {
struct timer_list *timer;
unsigned long timeout;
......@@ -456,9 +453,9 @@ int sctp_packet_transmit(sctp_packet_t *packet)
/*
* This private function resets the packet to a fresh state.
*/
static void sctp_packet_reset(sctp_packet_t *packet)
static void sctp_packet_reset(struct sctp_packet *packet)
{
sctp_chunk_t *chunk = NULL;
struct sctp_chunk *chunk = NULL;
packet->size = SCTP_IP_OVERHEAD;
......@@ -473,13 +470,16 @@ static void sctp_packet_reset(sctp_packet_t *packet)
}
/* This private function handles the specifics of appending DATA chunks. */
static sctp_xmit_t sctp_packet_append_data(sctp_packet_t *packet,
sctp_chunk_t *chunk)
static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
struct sctp_chunk *chunk)
{
sctp_xmit_t retval = SCTP_XMIT_OK;
size_t datasize, rwnd, inflight;
struct sctp_transport *transport = packet->transport;
__u32 max_burst_bytes;
struct sctp_association *asoc = transport->asoc;
struct sctp_opt *sp = sctp_sk(asoc->base.sk);
struct sctp_outq *q = &asoc->outqueue;
/* RFC 2960 6.1 Transmission of DATA Chunks
*
......@@ -494,8 +494,8 @@ static sctp_xmit_t sctp_packet_append_data(sctp_packet_t *packet,
* receiver to the data sender.
*/
rwnd = transport->asoc->peer.rwnd;
inflight = transport->asoc->outqueue.outstanding_bytes;
rwnd = asoc->peer.rwnd;
inflight = asoc->outqueue.outstanding_bytes;
datasize = sctp_data_size(chunk);
......@@ -517,7 +517,7 @@ static sctp_xmit_t sctp_packet_append_data(sctp_packet_t *packet,
* if ((flightsize + Max.Burst * MTU) < cwnd)
* cwnd = flightsize + Max.Burst * MTU
*/
max_burst_bytes = transport->asoc->max_burst * transport->asoc->pmtu;
max_burst_bytes = asoc->max_burst * asoc->pmtu;
if ((transport->flight_size + max_burst_bytes) < transport->cwnd) {
transport->cwnd = transport->flight_size + max_burst_bytes;
SCTP_DEBUG_PRINTK("%s: cwnd limited by max_burst: "
......@@ -543,27 +543,44 @@ static sctp_xmit_t sctp_packet_append_data(sctp_packet_t *packet,
* When a Fast Retransmit is being performed the sender SHOULD
* ignore the value of cwnd and SHOULD NOT delay retransmission.
*/
if (!chunk->fast_retransmit) {
if (!chunk->fast_retransmit)
if (transport->flight_size >= transport->cwnd) {
retval = SCTP_XMIT_RWND_FULL;
goto finish;
}
/* Nagle's algorithm to solve small-packet problem:
* Inhibit the sending of new chunks when new outgoing data arrives
* if any previously transmitted data on the connection remains
* unacknowledged.
*/
if (!sp->nodelay && SCTP_IP_OVERHEAD == packet->size &&
q->outstanding_bytes && SCTP_STATE_ESTABLISHED == asoc->state) {
unsigned len = datasize + q->out_qlen;
/* Check whether this chunk and all the rest of pending
* data will fit or delay in hopes of bundling a full
* sized packet.
*/
if (len < asoc->pmtu - SCTP_IP_OVERHEAD) {
retval = SCTP_XMIT_NAGLE_DELAY;
goto finish;
}
}
/* Keep track of how many bytes are in flight over this transport. */
transport->flight_size += datasize;
/* Keep track of how many bytes are in flight to the receiver. */
transport->asoc->outqueue.outstanding_bytes += datasize;
asoc->outqueue.outstanding_bytes += datasize;
/* Update our view of the receiver's rwnd. */
if (datasize < rwnd) {
if (datasize < rwnd)
rwnd -= datasize;
} else {
else
rwnd = 0;
}
transport->asoc->peer.rwnd = rwnd;
asoc->peer.rwnd = rwnd;
finish:
return retval;
......
net/sctp/outqueue.c
View file @ e5e956d0
This diff is collapsed.
net/sctp/protocol.c
View file @ e5e956d0
......@@ -58,7 +58,7 @@
#include <net/inet_common.h>
/* Global data structures. */
sctp_protocol_t sctp_proto;
struct sctp_protocol sctp_proto;
struct proc_dir_entry *proc_net_sctp;
DEFINE_SNMP_STAT(struct sctp_mib, sctp_statistics);
......@@ -152,7 +152,7 @@ static void sctp_v4_copy_addrlist(struct list_head *addrlist,
/* Extract our IP addresses from the system and stash them in the
* protocol structure.
*/
static void __sctp_get_local_addr_list(sctp_protocol_t *proto)
static void __sctp_get_local_addr_list(struct sctp_protocol *proto)
{
struct net_device *dev;
struct list_head *pos;
......@@ -168,7 +168,7 @@ static void __sctp_get_local_addr_list(sctp_protocol_t *proto)
read_unlock(&dev_base_lock);
}
static void sctp_get_local_addr_list(sctp_protocol_t *proto)
static void sctp_get_local_addr_list(struct sctp_protocol *proto)
{
long flags __attribute__ ((unused));
......@@ -178,7 +178,7 @@ static void sctp_get_local_addr_list(sctp_protocol_t *proto)
}
/* Free the existing local addresses. */
static void __sctp_free_local_addr_list(sctp_protocol_t *proto)
static void __sctp_free_local_addr_list(struct sctp_protocol *proto)
{
struct sockaddr_storage_list *addr;
struct list_head *pos, *temp;
......@@ -191,7 +191,7 @@ static void __sctp_free_local_addr_list(sctp_protocol_t *proto)
}
/* Free the existing local addresses. */
static void sctp_free_local_addr_list(sctp_protocol_t *proto)
static void sctp_free_local_addr_list(struct sctp_protocol *proto)
{
long flags __attribute__ ((unused));
......@@ -201,8 +201,9 @@ static void sctp_free_local_addr_list(sctp_protocol_t *proto)
}
/* Copy the local addresses which are valid for 'scope' into 'bp'. */
int sctp_copy_local_addr_list(sctp_protocol_t *proto, sctp_bind_addr_t *bp,
sctp_scope_t scope, int priority, int copy_flags)
int sctp_copy_local_addr_list(struct sctp_protocol *proto,
struct sctp_bind_addr *bp, sctp_scope_t scope,
int priority, int copy_flags)
{
struct sockaddr_storage_list *addr;
int error = 0;
......@@ -331,7 +332,7 @@ static int sctp_v4_addr_valid(union sctp_addr *addr)
static int sctp_v4_available(const union sctp_addr *addr)
{
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)
......@@ -380,7 +381,7 @@ static sctp_scope_t sctp_v4_scope(union sctp_addr *addr)
/* Returns a valid dst cache entry for the given source and destination ip
* addresses. If an association is passed, trys to get a dst entry with a
* source adddress that matches an address in the bind address list.
* source adddress that matches an address in the bind address list.
*/
struct dst_entry *sctp_v4_get_dst(sctp_association_t *asoc,
union sctp_addr *daddr,
......@@ -479,6 +480,61 @@ void sctp_v4_get_saddr(sctp_association_t *asoc,
}
/* Create and initialize a new sk for the socket returned by accept(). */
struct sock *sctp_v4_create_accept_sk(struct sock *sk,
struct sctp_association *asoc)
{
struct sock *newsk;
struct inet_opt *inet = inet_sk(sk);
struct inet_opt *newinet;
newsk = sk_alloc(PF_INET, GFP_KERNEL, sizeof(struct sctp_sock),
sk->slab);
if (!newsk)
goto out;
sock_init_data(NULL, newsk);
newsk->type = SOCK_STREAM;
newsk->prot = sk->prot;
newsk->no_check = sk->no_check;
newsk->reuse = sk->reuse;
newsk->destruct = inet_sock_destruct;
newsk->zapped = 0;
newsk->family = PF_INET;
newsk->protocol = IPPROTO_SCTP;
newsk->backlog_rcv = sk->prot->backlog_rcv;
newinet = inet_sk(newsk);
newinet->sport = inet->sport;
newinet->saddr = inet->saddr;
newinet->rcv_saddr = inet->saddr;
newinet->dport = asoc->peer.port;
newinet->daddr = asoc->peer.primary_addr.v4.sin_addr.s_addr;
newinet->pmtudisc = inet->pmtudisc;
newinet->id = 0;
newinet->ttl = sysctl_ip_default_ttl;
newinet->mc_loop = 1;
newinet->mc_ttl = 1;
newinet->mc_index = 0;
newinet->mc_list = NULL;
#ifdef INET_REFCNT_DEBUG
atomic_inc(&inet_sock_nr);
#endif
if (0 != newsk->prot->init(newsk)) {
inet_sock_release(newsk);
newsk = NULL;
}
out:
return newsk;
}
/* Event handler for inet address addition/deletion events.
* Basically, whenever there is an event, we re-build our local address list.
*/
......@@ -501,10 +557,13 @@ static int sctp_inetaddr_event(struct notifier_block *this, unsigned long event,
*/
int sctp_ctl_sock_init(void)
{
int err = 0;
int family = PF_INET;
int err;
sa_family_t family;
SCTP_V6(family = PF_INET6;)
if (sctp_get_pf_specific(PF_INET6))
family = PF_INET6;
else
family = PF_INET;
err = sock_create(family, SOCK_SEQPACKET, IPPROTO_SCTP,
&sctp_ctl_socket);
......@@ -630,6 +689,16 @@ static int sctp_inet_bind_verify(struct sctp_opt *opt, union sctp_addr *addr)
return sctp_v4_available(addr);
}
/* Fill in Supported Address Type information for INIT and INIT-ACK
* chunks. Returns number of addresses supported.
*/
static int sctp_inet_supported_addrs(const struct sctp_opt *opt,
__u16 *types)
{
types[0] = SCTP_PARAM_IPV4_ADDRESS;
return 1;
}
/* Wrapper routine that calls the ip transmit routine. */
static inline int sctp_v4_xmit(struct sk_buff *skb,
struct sctp_transport *transport, int ipfragok)
......@@ -652,6 +721,8 @@ static struct sctp_pf sctp_pf_inet = {
.af_supported = sctp_inet_af_supported,
.cmp_addr = sctp_inet_cmp_addr,
.bind_verify = sctp_inet_bind_verify,
.supported_addrs = sctp_inet_supported_addrs,
.create_accept_sk = sctp_v4_create_accept_sk,
.af = &sctp_ipv4_specific,
};
......@@ -682,7 +753,7 @@ struct proto_ops inet_seqpacket_ops = {
};
/* Registration with AF_INET family. */
struct inet_protosw sctp_protosw = {
static struct inet_protosw sctp_seqpacket_protosw = {
.type = SOCK_SEQPACKET,
.protocol = IPPROTO_SCTP,
.prot = &sctp_prot,
......@@ -691,6 +762,15 @@ struct inet_protosw sctp_protosw = {
.no_check = 0,
.flags = SCTP_PROTOSW_FLAG
};
static struct inet_protosw sctp_stream_protosw = {
.type = SOCK_STREAM,
.protocol = IPPROTO_SCTP,
.prot = &sctp_prot,
.ops = &inet_seqpacket_ops,
.capability = -1,
.no_check = 0,
.flags = SCTP_PROTOSW_FLAG
};
/* Register with IP layer. */
static struct inet_protocol sctp_protocol = {
......@@ -756,7 +836,7 @@ int sctp_register_pf(struct sctp_pf *pf, sa_family_t family)
static int __init init_sctp_mibs(void)
{
int i;
sctp_statistics[0] = kmalloc_percpu(sizeof (struct sctp_mib),
GFP_KERNEL);
if (!sctp_statistics[0])
......@@ -778,7 +858,7 @@ static int __init init_sctp_mibs(void)
}
}
return 0;
}
static void cleanup_sctp_mibs(void)
......@@ -797,14 +877,15 @@ __init int sctp_init(void)
if (inet_add_protocol(&sctp_protocol, IPPROTO_SCTP) < 0)
return -EAGAIN;
/* Add SCTP to inetsw linked list. */
inet_register_protosw(&sctp_protosw);
/* Add SCTP(TCP and UDP style) to inetsw linked list. */
inet_register_protosw(&sctp_seqpacket_protosw);
inet_register_protosw(&sctp_stream_protosw);
/* Allocate and initialise sctp mibs. */
status = init_sctp_mibs();
if (status)
if (status)
goto err_init_mibs;
/* Initialize proc fs directory. */
sctp_proc_init();
......@@ -831,7 +912,7 @@ __init int sctp_init(void)
/* Valid.Cookie.Life - 60 seconds */
sctp_proto.valid_cookie_life = 60 * HZ;
/* Whether Cookie Preservative is enabled(1) or not(0) */
/* Whether Cookie Preservative is enabled(1) or not(0) */
sctp_proto.cookie_preserve_enable = 1;
/* Max.Burst - 4 */
......@@ -920,7 +1001,7 @@ __init int sctp_init(void)
INIT_LIST_HEAD(&sctp_proto.local_addr_list);
sctp_proto.local_addr_lock = SPIN_LOCK_UNLOCKED;
/* Register notifier for inet address additions/deletions. */
/* Register notifier for inet address additions/deletions. */
register_inetaddr_notifier(&sctp_inetaddr_notifier);
sctp_get_local_addr_list(&sctp_proto);
......@@ -942,9 +1023,10 @@ __init int sctp_init(void)
sctp_dbg_objcnt_exit();
sctp_proc_exit();
cleanup_sctp_mibs();
err_init_mibs:
err_init_mibs:
inet_del_protocol(&sctp_protocol, IPPROTO_SCTP);
inet_unregister_protosw(&sctp_protosw);
inet_unregister_protosw(&sctp_seqpacket_protosw);
inet_unregister_protosw(&sctp_stream_protosw);
return status;
}
......@@ -977,7 +1059,8 @@ __exit void sctp_exit(void)
cleanup_sctp_mibs();
inet_del_protocol(&sctp_protocol, IPPROTO_SCTP);
inet_unregister_protosw(&sctp_protosw);
inet_unregister_protosw(&sctp_seqpacket_protosw);
inet_unregister_protosw(&sctp_stream_protosw);
}
module_init(sctp_init);
......
net/sctp/sm_make_chunk.c
View file @ e5e956d0
......@@ -66,29 +66,6 @@
#include <net/sctp/sctp.h>
#include <net/sctp/sm.h>
/* RFC 2960 3.3.2 Initiation (INIT) (1)
*
* Note 4: This parameter, when present, specifies all the
* address types the sending endpoint can support. The absence
* of this parameter indicates that the sending endpoint can
* support any address type.
*/
static const sctp_supported_addrs_param_t sat_param = {
{
SCTP_PARAM_SUPPORTED_ADDRESS_TYPES,
__constant_htons(SCTP_SAT_LEN),
}
};
/* gcc 3.2 doesn't allow initialization of zero-length arrays. So the above
* structure is split and the address types array is initialized using a
* fixed length array.
*/
static const __u16 sat_addr_types[2] = {
SCTP_PARAM_IPV4_ADDRESS,
SCTP_V6(SCTP_PARAM_IPV6_ADDRESS,)
};
/* RFC 2960 3.3.2 Initiation (INIT) (1)
*
* Note 2: The ECN capable field is reserved for future use of
......@@ -174,7 +151,10 @@ sctp_chunk_t *sctp_make_init(const sctp_association_t *asoc,
union sctp_params addrs;
size_t chunksize;
sctp_chunk_t *retval = NULL;
int addrs_len = 0;
int num_types, addrs_len = 0;
struct sctp_opt *sp;
sctp_supported_addrs_param_t sat;
__u16 types[2];
/* RFC 2960 3.3.2 Initiation (INIT) (1)
*
......@@ -195,7 +175,11 @@ sctp_chunk_t *sctp_make_init(const sctp_association_t *asoc,
init.num_inbound_streams = htons(asoc->c.sinit_max_instreams);
init.initial_tsn = htonl(asoc->c.initial_tsn);
chunksize = sizeof(init) + addrs_len + SCTP_SAT_LEN;
/* How many address types are needed? */
sp = sctp_sk(asoc->base.sk);
num_types = sp->pf->supported_addrs(sp, types);
chunksize = sizeof(init) + addrs_len + SCTP_SAT_LEN(num_types);
chunksize += sizeof(ecap_param);
chunksize += vparam_len;
......@@ -220,8 +204,18 @@ sctp_chunk_t *sctp_make_init(const sctp_association_t *asoc,
retval->param_hdr.v =
sctp_addto_chunk(retval, addrs_len, addrs.v);
sctp_addto_chunk(retval, sizeof(sctp_paramhdr_t), &sat_param);
sctp_addto_chunk(retval, sizeof(sat_addr_types), sat_addr_types);
/* RFC 2960 3.3.2 Initiation (INIT) (1)
*
* Note 4: This parameter, when present, specifies all the
* address types the sending endpoint can support. The absence
* of this parameter indicates that the sending endpoint can
* support any address type.
*/
sat.param_hdr.type = SCTP_PARAM_SUPPORTED_ADDRESS_TYPES;
sat.param_hdr.length = htons(SCTP_SAT_LEN(num_types));
sctp_addto_chunk(retval, sizeof(sat), &sat);
sctp_addto_chunk(retval, num_types * sizeof(__u16), &types);
sctp_addto_chunk(retval, sizeof(ecap_param), &ecap_param);
nodata:
if (addrs.v)
......@@ -604,7 +598,7 @@ sctp_chunk_t *sctp_make_sack(const sctp_association_t *asoc)
/* Initialize the SACK header. */
sack.cum_tsn_ack = htonl(ctsn);
sack.a_rwnd = htonl(asoc->rwnd);
sack.a_rwnd = htonl(asoc->a_rwnd);
sack.num_gap_ack_blocks = htons(num_gabs);
sack.num_dup_tsns = htons(num_dup_tsns);
......@@ -1159,7 +1153,7 @@ int sctp_datachunks_from_user(sctp_association_t *asoc,
first_len = max;
/* Encourage Cookie-ECHO bundling. */
if (asoc->state < SCTP_STATE_ESTABLISHED) {
if (asoc->state < SCTP_STATE_COOKIE_ECHOED) {
whole = msg_len / (max - SCTP_ARBITRARY_COOKIE_ECHO_LEN);
/* Account for the DATA to be bundled with the COOKIE-ECHO. */
......@@ -1282,7 +1276,7 @@ void sctp_chunk_assign_tsn(sctp_chunk_t *chunk)
* assign a TSN.
*/
chunk->subh.data_hdr->tsn =
htonl(__sctp_association_get_next_tsn(chunk->asoc));
htonl(sctp_association_get_next_tsn(chunk->asoc));
chunk->has_tsn = 1;
}
}
......
net/sctp/sm_sideeffect.c
View file @ e5e956d0
......@@ -105,8 +105,7 @@ static void sctp_cmd_new_state(sctp_cmd_seq_t *, sctp_association_t *,
#define DEBUG_POST_SFX \
SCTP_DEBUG_PRINTK("sctp_do_sm post sfx: error %d, asoc %p[%s]\n", \
error, asoc, \
sctp_state_tbl[sctp_id2assoc(ep->base.sk, \
sctp_assoc2id(asoc))?asoc->state:SCTP_STATE_CLOSED])
sctp_state_tbl[asoc?asoc->state:SCTP_STATE_CLOSED])
/*
* This is the master state machine processing function.
......@@ -256,7 +255,7 @@ int sctp_cmd_interpreter(sctp_event_t event_type, sctp_subtype_t subtype,
sctp_cmd_t *cmd;
sctp_chunk_t *new_obj;
sctp_chunk_t *chunk = NULL;
sctp_packet_t *packet;
struct sctp_packet *packet;
struct list_head *pos;
struct timer_list *timer;
unsigned long timeout;
......@@ -716,13 +715,12 @@ int sctp_gen_sack(sctp_association_t *asoc, int force, sctp_cmd_seq_t *commands)
asoc->peer.sack_needed = 1;
goto out;
} else {
if (asoc->a_rwnd > asoc->rwnd)
asoc->a_rwnd = asoc->rwnd;
sack = sctp_make_sack(asoc);
if (!sack)
goto nomem;
/* Update the last advertised rwnd value. */
asoc->a_rwnd = asoc->rwnd;
asoc->peer.sack_needed = 0;
error = sctp_outq_tail(&asoc->outqueue, sack);
......@@ -1223,13 +1221,35 @@ static void sctp_cmd_setup_t2(sctp_cmd_seq_t *cmds, sctp_association_t *asoc,
static void sctp_cmd_new_state(sctp_cmd_seq_t *cmds, sctp_association_t *asoc,
sctp_state_t state)
{
struct sock *sk = asoc->base.sk;
struct sctp_opt *sp = sctp_sk(sk);
asoc->state = state;
asoc->state_timestamp = jiffies;
/* Wake up any process waiting for the association to
* get established.
if ((SCTP_STATE_ESTABLISHED == asoc->state) ||
(SCTP_STATE_CLOSED == asoc->state)) {
/* Wake up any processes waiting in the asoc's wait queue in
* sctp_wait_for_connect() or sctp_wait_for_sndbuf().
*/
if (waitqueue_active(&asoc->wait))
wake_up_interruptible(&asoc->wait);
/* Wake up any processes waiting in the sk's sleep queue of
* a TCP-style or UDP-style peeled-off socket in
* sctp_wait_for_accept() or sctp_wait_for_packet().
* For a UDP-style socket, the waiters are woken up by the
* notifications.
*/
if (SCTP_SOCKET_UDP != sp->type)
sk->state_change(sk);
}
/* Change the sk->state of a TCP-style socket that has sucessfully
* completed a connect() call.
*/
if ((SCTP_STATE_ESTABLISHED == asoc->state) &&
(waitqueue_active(&asoc->wait)))
wake_up_interruptible(&asoc->wait);
(SCTP_SOCKET_TCP == sp->type) && (SCTP_SS_CLOSED == sk->state))
sk->state = SCTP_SS_ESTABLISHED;
}
net/sctp/sm_statefuns.c
View file @ e5e956d0
......@@ -189,7 +189,7 @@ sctp_disposition_t sctp_sf_do_5_1B_init(const sctp_endpoint_t *ep,
sctp_chunk_t *repl;
sctp_association_t *new_asoc;
sctp_chunk_t *err_chunk;
sctp_packet_t *packet;
struct sctp_packet *packet;
sctp_unrecognized_param_t *unk_param;
int len;
......@@ -354,10 +354,9 @@ sctp_disposition_t sctp_sf_do_5_1C_ack(const sctp_endpoint_t *ep,
sctp_init_chunk_t *initchunk;
__u32 init_tag;
sctp_chunk_t *err_chunk;
sctp_packet_t *packet;
struct sctp_packet *packet;
sctp_disposition_t ret;
/* 6.10 Bundling
* An endpoint MUST NOT bundle INIT, INIT ACK or
* SHUTDOWN COMPLETE with any other chunks.
......@@ -912,14 +911,14 @@ static int sctp_sf_send_restart_abort(union sctp_addr *ssa,
sctp_cmd_seq_t *commands)
{
int len;
sctp_packet_t *pkt;
struct sctp_packet *pkt;
sctp_addr_param_t *addrparm;
sctp_errhdr_t *errhdr;
sctp_endpoint_t *ep;
char buffer[sizeof(sctp_errhdr_t) + sizeof(sctp_addr_param_t)];
/* Build the error on the stack. We are way to malloc
* malloc crazy throughout the code today.
/* Build the error on the stack. We are way to malloc crazy
* throughout the code today.
*/
errhdr = (sctp_errhdr_t *)buffer;
addrparm = (sctp_addr_param_t *)errhdr->variable;
......@@ -1105,11 +1104,10 @@ static sctp_disposition_t sctp_sf_do_unexpected_init(
sctp_chunk_t *repl;
sctp_association_t *new_asoc;
sctp_chunk_t *err_chunk;
sctp_packet_t *packet;
struct sctp_packet *packet;
sctp_unrecognized_param_t *unk_param;
int len;
/* 6.10 Bundling
* An endpoint MUST NOT bundle INIT, INIT ACK or
* SHUTDOWN COMPLETE with any other chunks.
......@@ -2351,7 +2349,7 @@ sctp_disposition_t sctp_sf_eat_data_6_2(const sctp_endpoint_t *ep,
* room. Note: Playing nice with a confused sender. A
* malicious sender can still eat up all our buffer
* space and in the future we may want to detect and
* do more drastic reneging.
* do more drastic reneging.
*/
if (sctp_tsnmap_has_gap(&asoc->peer.tsn_map) &&
(sctp_tsnmap_get_ctsn(&asoc->peer.tsn_map) + 1) == tsn) {
......@@ -2751,7 +2749,7 @@ sctp_disposition_t sctp_sf_tabort_8_4_8(const sctp_endpoint_t *ep,
void *arg,
sctp_cmd_seq_t *commands)
{
sctp_packet_t *packet = NULL;
struct sctp_packet *packet = NULL;
sctp_chunk_t *chunk = arg;
sctp_chunk_t *abort;
......@@ -2953,7 +2951,7 @@ sctp_disposition_t sctp_sf_shut_8_4_5(const sctp_endpoint_t *ep,
void *arg,
sctp_cmd_seq_t *commands)
{
sctp_packet_t *packet = NULL;
struct sctp_packet *packet = NULL;
sctp_chunk_t *chunk = arg;
sctp_chunk_t *shut;
......@@ -4377,13 +4375,13 @@ sctp_sackhdr_t *sctp_sm_pull_sack(sctp_chunk_t *chunk)
/* Create an ABORT packet to be sent as a response, with the specified
* error causes.
*/
sctp_packet_t *sctp_abort_pkt_new(const sctp_endpoint_t *ep,
struct sctp_packet *sctp_abort_pkt_new(const sctp_endpoint_t *ep,
const sctp_association_t *asoc,
sctp_chunk_t *chunk,
const void *payload,
size_t paylen)
{
sctp_packet_t *packet;
struct sctp_packet *packet;
sctp_chunk_t *abort;
packet = sctp_ootb_pkt_new(asoc, chunk);
......@@ -4413,10 +4411,10 @@ sctp_packet_t *sctp_abort_pkt_new(const sctp_endpoint_t *ep,
}
/* Allocate a packet for responding in the OOTB conditions. */
sctp_packet_t *sctp_ootb_pkt_new(const sctp_association_t *asoc,
struct sctp_packet *sctp_ootb_pkt_new(const sctp_association_t *asoc,
const sctp_chunk_t *chunk)
{
sctp_packet_t *packet;
struct sctp_packet *packet;
struct sctp_transport *transport;
__u16 sport;
__u16 dport;
......@@ -4449,7 +4447,7 @@ sctp_packet_t *sctp_ootb_pkt_new(const sctp_association_t *asoc,
goto nomem;
/* Allocate a new packet for sending the response. */
packet = t_new(sctp_packet_t, GFP_ATOMIC);
packet = t_new(struct sctp_packet, GFP_ATOMIC);
if (!packet)
goto nomem_packet;
......@@ -4471,7 +4469,7 @@ sctp_packet_t *sctp_ootb_pkt_new(const sctp_association_t *asoc,
}
/* Free the packet allocated earlier for responding in the OOTB condition. */
void sctp_ootb_pkt_free(sctp_packet_t *packet)
void sctp_ootb_pkt_free(struct sctp_packet *packet)
{
sctp_transport_free(packet->transport);
sctp_packet_free(packet);
......@@ -4484,7 +4482,7 @@ void sctp_send_stale_cookie_err(const sctp_endpoint_t *ep,
sctp_cmd_seq_t *commands,
sctp_chunk_t *err_chunk)
{
sctp_packet_t *packet;
struct sctp_packet *packet;
if (err_chunk) {
packet = sctp_ootb_pkt_new(asoc, chunk);
......
net/sctp/socket.c
View file @ e5e956d0
This diff is collapsed.
net/sctp/sysctl.c
View file @ e5e956d0
......@@ -42,7 +42,7 @@
#include <net/sctp/structs.h>
#include <linux/sysctl.h>
extern sctp_protocol_t sctp_proto;
extern struct sctp_protocol sctp_proto;
static ctl_table sctp_table[] = {
{
......
net/sctp/transport.c
View file @ e5e956d0
......@@ -83,7 +83,7 @@ struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
const union sctp_addr *addr,
int priority)
{
sctp_protocol_t *proto = sctp_get_protocol();
struct sctp_protocol *proto = sctp_get_protocol();
/* Copy in the address. */
peer->ipaddr = *addr;
......@@ -262,7 +262,7 @@ void sctp_transport_put(struct sctp_transport *transport)
/* Update transport's RTO based on the newly calculated RTT. */
void sctp_transport_update_rto(struct sctp_transport *tp, __u32 rtt)
{
sctp_protocol_t *proto = sctp_get_protocol();
struct sctp_protocol *proto = sctp_get_protocol();
/* Check for valid transport. */
SCTP_ASSERT(tp, "NULL transport", return);
......
net/sctp/tsnmap.c
View file @ e5e956d0
......@@ -250,7 +250,7 @@ int sctp_tsnmap_next_gap_ack(const struct sctp_tsnmap *map,
/* The Gap Ack Block happens to end at the end of the
* overflow map.
*/
if (started & !ended) {
if (started && !ended) {
ended++;
_end = map->len + map->len - 1;
}
......@@ -395,7 +395,7 @@ void sctp_tsnmap_renege(struct sctp_tsnmap *map, __u32 tsn)
return;
if (!TSN_lt(tsn, map->base_tsn + map->len + map->len))
return;
/* Assert: TSN is in range. */
gap = tsn - map->base_tsn;
......
net/sctp/ulpqueue.c
View file @ e5e956d0
......@@ -220,7 +220,7 @@ int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
if (sctp_event2skb(event)->list)
sctp_skb_list_tail(sctp_event2skb(event)->list, queue);
else
skb_queue_tail(queue, sctp_event2skb(event));
__skb_queue_tail(queue, sctp_event2skb(event));
/* Did we just complete partial delivery and need to get
* rolling again? Move pending data to the receive
......@@ -230,7 +230,7 @@ int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
sctp_ulpq_clear_pd(ulpq);
if (queue == &sk->receive_queue)
wake_up_interruptible(sk->sleep);
sk->data_ready(sk, 0);
return 1;
out_free:
......@@ -247,14 +247,14 @@ int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
static inline void sctp_ulpq_store_reasm(struct sctp_ulpq *ulpq,
struct sctp_ulpevent *event)
{
struct sk_buff *pos, *tmp;
struct sk_buff *pos;
struct sctp_ulpevent *cevent;
__u32 tsn, ctsn;
tsn = event->sndrcvinfo.sinfo_tsn;
/* Find the right place in this list. We store them by TSN. */
sctp_skb_for_each(pos, &ulpq->reasm, tmp) {
skb_queue_walk(&ulpq->reasm, pos) {
cevent = sctp_skb2event(pos);
ctsn = cevent->sndrcvinfo.sinfo_tsn;
......@@ -334,7 +334,7 @@ static inline struct sctp_ulpevent *sctp_make_reassembled_event(struct sk_buff *
*/
static inline struct sctp_ulpevent *sctp_ulpq_retrieve_reassembled(struct sctp_ulpq *ulpq)
{
struct sk_buff *pos, *tmp;
struct sk_buff *pos;
struct sctp_ulpevent *cevent;
struct sk_buff *first_frag = NULL;
__u32 ctsn, next_tsn;
......@@ -355,7 +355,7 @@ static inline struct sctp_ulpevent *sctp_ulpq_retrieve_reassembled(struct sctp_u
* fragment in order. If not, first_frag is reset to NULL and we
* start the next pass when we find another first fragment.
*/
sctp_skb_for_each(pos, &ulpq->reasm, tmp) {
skb_queue_walk(&ulpq->reasm, pos) {
cevent = sctp_skb2event(pos);
ctsn = cevent->sndrcvinfo.sinfo_tsn;
......@@ -374,29 +374,26 @@ static inline struct sctp_ulpevent *sctp_ulpq_retrieve_reassembled(struct sctp_u
case SCTP_DATA_LAST_FRAG:
if (first_frag && (ctsn == next_tsn))
retval = sctp_make_reassembled_event(
first_frag, pos);
goto found;
else
first_frag = NULL;
break;
};
/* We have the reassembled event. There is no need to look
* further.
*/
if (retval) {
retval->msg_flags |= MSG_EOR;
break;
}
}
done:
return retval;
found:
retval = sctp_make_reassembled_event(first_frag, pos);
if (retval)
retval->msg_flags |= MSG_EOR;
goto done;
}
/* Retrieve the next set of fragments of a partial message. */
static inline struct sctp_ulpevent *sctp_ulpq_retrieve_partial(struct sctp_ulpq *ulpq)
{
struct sk_buff *pos, *tmp, *last_frag, *first_frag;
struct sk_buff *pos, *last_frag, *first_frag;
struct sctp_ulpevent *cevent;
__u32 ctsn, next_tsn;
int is_last;
......@@ -415,7 +412,7 @@ static inline struct sctp_ulpevent *sctp_ulpq_retrieve_partial(struct sctp_ulpq
next_tsn = 0;
is_last = 0;
sctp_skb_for_each(pos, &ulpq->reasm, tmp) {
skb_queue_walk(&ulpq->reasm, pos) {
cevent = sctp_skb2event(pos);
ctsn = cevent->sndrcvinfo.sinfo_tsn;
......@@ -448,7 +445,7 @@ static inline struct sctp_ulpevent *sctp_ulpq_retrieve_partial(struct sctp_ulpq
*/
done:
retval = sctp_make_reassembled_event(first_frag, last_frag);
if (is_last)
if (retval && is_last)
retval->msg_flags |= MSG_EOR;
return retval;
......@@ -490,7 +487,7 @@ static inline struct sctp_ulpevent *sctp_ulpq_reasm(struct sctp_ulpq *ulpq,
/* Retrieve the first part (sequential fragments) for partial delivery. */
static inline struct sctp_ulpevent *sctp_ulpq_retrieve_first(struct sctp_ulpq *ulpq)
{
struct sk_buff *pos, *tmp, *last_frag, *first_frag;
struct sk_buff *pos, *last_frag, *first_frag;
struct sctp_ulpevent *cevent;
__u32 ctsn, next_tsn;
struct sctp_ulpevent *retval;
......@@ -507,7 +504,7 @@ static inline struct sctp_ulpevent *sctp_ulpq_retrieve_first(struct sctp_ulpq *u
retval = NULL;
next_tsn = 0;
sctp_skb_for_each(pos, &ulpq->reasm, tmp) {
skb_queue_walk(&ulpq->reasm, pos) {
cevent = sctp_skb2event(pos);
ctsn = cevent->sndrcvinfo.sinfo_tsn;
......@@ -590,7 +587,7 @@ static inline void sctp_ulpq_retrieve_ordered(struct sctp_ulpq *ulpq,
static inline void sctp_ulpq_store_ordered(struct sctp_ulpq *ulpq,
struct sctp_ulpevent *event)
{
struct sk_buff *pos, *tmp;
struct sk_buff *pos;
struct sctp_ulpevent *cevent;
__u16 sid, csid;
__u16 ssn, cssn;
......@@ -601,7 +598,7 @@ static inline void sctp_ulpq_store_ordered(struct sctp_ulpq *ulpq,
/* Find the right place in this list. We store them by
* stream ID and then by SSN.
*/
sctp_skb_for_each(pos, &ulpq->lobby, tmp) {
skb_queue_walk(&ulpq->lobby, pos) {
cevent = (struct sctp_ulpevent *) pos->cb;
csid = cevent->sndrcvinfo.sinfo_stream;
cssn = cevent->sndrcvinfo.sinfo_ssn;
......@@ -786,9 +783,9 @@ void sctp_ulpq_abort_pd(struct sctp_ulpq *ulpq, int priority)
SCTP_PARTIAL_DELIVERY_ABORTED,
priority);
if (ev)
skb_queue_tail(&sk->receive_queue, sctp_event2skb(ev));
__skb_queue_tail(&sk->receive_queue, sctp_event2skb(ev));
/* If there is data waiting, send it up the socket now. */
if (sctp_ulpq_clear_pd(ulpq) || ev)
wake_up_interruptible(sk->sleep);
sk->data_ready(sk, 0);
}
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