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Commit ce1de957 authored by David S. Miller's avatar David S. Miller
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Merge http://linux-lksctp.bkbits.net/lksctp-2.5 

into nuts.ninka.net:/home/davem/src/BK/sctp-2.5
parents 438ea4e5 3e446c25
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Showing with 2934 additions and 2015 deletions
include/net/sctp/command.h
View file @ ce1de957
......@@ -182,7 +182,7 @@ typedef struct {
/* Create a new sctp_command_sequence.
* Return NULL if creating a new sequence fails.
*/
sctp_cmd_seq_t *sctp_new_cmd_seq(int priority);
sctp_cmd_seq_t *sctp_new_cmd_seq(int gfp);
/* Initialize a block of memory as a command sequence.
* Return 0 if the initialization fails.
......
include/net/sctp/constants.h
View file @ ce1de957
......@@ -6,30 +6,31 @@
*
* 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.
*
* 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
* will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* The SCTP reference implementation is distributed in the hope that it
* will be useful, but WITHOUT ANY WARRANTY; without even the implied
* ************************
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* 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.
*
* Please send any bug reports or fixes you make to one of the following email
* addresses:
* Please send any bug reports or fixes you make to the
* email address(es):
* 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:
* La Monte H.P. Yarroll <piggy@acm.org>
* Karl Knutson <karl@athena.chicago.il.us>
* Randall Stewart <randall@stewart.chicago.il.us>
......@@ -41,11 +42,6 @@
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
*
* There are still LOTS of bugs in this code... I always run on the motto
* "it is a wonder any code ever works :)"
*
*
*/
#ifndef __sctp_constants_h__
......@@ -220,7 +216,7 @@ typedef enum {
* - 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.
* association.
*/
typedef enum {
SCTP_SS_CLOSED = TCP_CLOSE,
......@@ -336,10 +332,18 @@ typedef enum {
#define SCTP_SIGNATURE_SIZE 20 /* size of a SLA-1 signature */
#define SCTP_COOKIE_MULTIPLE 64 /* Pad out our cookie to make our hash
#define SCTP_COOKIE_MULTIPLE 32 /* Pad out our cookie to make our hash
* functions simpler to write.
*/
#if defined (CONFIG_SCTP_HMAC_MD5)
#define SCTP_COOKIE_HMAC_ALG "md5"
#elif defined (CONFIG_SCTP_HMAC_SHA1)
#define SCTP_COOKIE_HMAC_ALG "sha1"
#else
#define SCTP_COOKIE_HMAC_ALG NULL
#endif
/* These return values describe the success or failure of a number of
* routines which form the lower interface to SCTP_outqueue.
*/
......
include/net/sctp/sctp.h
View file @ ce1de957
......@@ -125,65 +125,61 @@ extern struct sctp_protocol sctp_proto;
extern struct sock *sctp_get_ctl_sock(void);
extern int sctp_copy_local_addr_list(struct sctp_protocol *,
struct sctp_bind_addr *,
sctp_scope_t, int priority, int flags);
sctp_scope_t, int gfp, 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);
/*
* sctp/socket.c
*/
extern int sctp_backlog_rcv(struct sock *sk, struct sk_buff *skb);
extern int sctp_inet_listen(struct socket *sock, int backlog);
extern void sctp_write_space(struct sock *sk);
extern unsigned int sctp_poll(struct file *file, struct socket *sock,
int sctp_backlog_rcv(struct sock *sk, struct sk_buff *skb);
int sctp_inet_listen(struct socket *sock, int backlog);
void sctp_write_space(struct sock *sk);
unsigned int sctp_poll(struct file *file, struct socket *sock,
poll_table *wait);
/*
* sctp/primitive.c
*/
extern int sctp_primitive_ASSOCIATE(sctp_association_t *, void *arg);
extern int sctp_primitive_SHUTDOWN(sctp_association_t *, void *arg);
extern int sctp_primitive_ABORT(sctp_association_t *, void *arg);
extern int sctp_primitive_SEND(sctp_association_t *, void *arg);
extern int sctp_primitive_REQUESTHEARTBEAT(sctp_association_t *, void *arg);
int sctp_primitive_ASSOCIATE(struct sctp_association *, void *arg);
int sctp_primitive_SHUTDOWN(struct sctp_association *, void *arg);
int sctp_primitive_ABORT(struct sctp_association *, void *arg);
int sctp_primitive_SEND(struct sctp_association *, void *arg);
int sctp_primitive_REQUESTHEARTBEAT(struct sctp_association *, void *arg);
/*
* sctp/crc32c.c
*/
extern __u32 sctp_start_cksum(__u8 *ptr, __u16 count);
extern __u32 sctp_update_cksum(__u8 *ptr, __u16 count, __u32 cksum);
extern __u32 sctp_end_cksum(__u32 cksum);
__u32 sctp_start_cksum(__u8 *ptr, __u16 count);
__u32 sctp_update_cksum(__u8 *ptr, __u16 count, __u32 cksum);
__u32 sctp_end_cksum(__u32 cksum);
__u32 sctp_update_copy_cksum(__u8 *, __u8 *, __u16 count, __u32 cksum);
/*
* sctp/input.c
*/
extern int sctp_rcv(struct sk_buff *skb);
extern void sctp_v4_err(struct sk_buff *skb, u32 info);
extern void sctp_hash_established(sctp_association_t *);
extern void __sctp_hash_established(sctp_association_t *);
extern void sctp_unhash_established(sctp_association_t *);
extern void __sctp_unhash_established(sctp_association_t *);
extern void sctp_hash_endpoint(sctp_endpoint_t *);
extern void __sctp_hash_endpoint(sctp_endpoint_t *);
extern void sctp_unhash_endpoint(sctp_endpoint_t *);
extern void __sctp_unhash_endpoint(sctp_endpoint_t *);
extern sctp_association_t *__sctp_lookup_association(const union sctp_addr *,
int sctp_rcv(struct sk_buff *skb);
void sctp_v4_err(struct sk_buff *skb, u32 info);
void sctp_hash_established(struct sctp_association *);
void __sctp_hash_established(struct sctp_association *);
void sctp_unhash_established(struct sctp_association *);
void __sctp_unhash_established(struct sctp_association *);
void sctp_hash_endpoint(struct sctp_endpoint *);
void __sctp_hash_endpoint(struct sctp_endpoint *);
void sctp_unhash_endpoint(struct sctp_endpoint *);
void __sctp_unhash_endpoint(struct sctp_endpoint *);
struct sctp_association *__sctp_lookup_association(
const union sctp_addr *,
const union sctp_addr *,
struct sctp_transport **);
extern struct sock *sctp_err_lookup(int family, struct sk_buff *,
struct sock *sctp_err_lookup(int family, struct sk_buff *,
struct sctphdr *, struct sctp_endpoint **,
struct sctp_association **,
struct sctp_transport **);
extern void sctp_err_finish(struct sock *, struct sctp_endpoint *,
void sctp_err_finish(struct sock *, struct sctp_endpoint *,
struct sctp_association *);
extern void sctp_icmp_frag_needed(struct sock *, struct sctp_association *,
void sctp_icmp_frag_needed(struct sock *, struct sctp_association *,
struct sctp_transport *t, __u32 pmtu);
/*
* sctp/hashdriver.c
*/
extern void sctp_hash_digest(const char *secret, const int secret_len,
const char *text, const int text_len,
__u8 *digest);
/*
* Section: Macros, externs, and inlines
......@@ -281,6 +277,7 @@ extern atomic_t sctp_dbg_objcnt_chunk;
extern atomic_t sctp_dbg_objcnt_bind_addr;
extern atomic_t sctp_dbg_objcnt_addr;
extern atomic_t sctp_dbg_objcnt_ssnmap;
extern atomic_t sctp_dbg_objcnt_datamsg;
/* Macros to atomically increment/decrement objcnt counters. */
#define SCTP_DBG_OBJCNT_INC(name) \
......@@ -296,8 +293,8 @@ atomic_t sctp_dbg_objcnt_## name = ATOMIC_INIT(0)
#define SCTP_DBG_OBJCNT_ENTRY(name) \
{.label= #name, .counter= &sctp_dbg_objcnt_## name}
extern void sctp_dbg_objcnt_init(void);
extern void sctp_dbg_objcnt_exit(void);
void sctp_dbg_objcnt_init(void);
void sctp_dbg_objcnt_exit(void);
#else
......@@ -310,8 +307,8 @@ static inline void sctp_dbg_objcnt_exit(void) { return; }
#endif /* CONFIG_SCTP_DBG_OBJCOUNT */
#if defined CONFIG_SYSCTL
extern void sctp_sysctl_register(void);
extern void sctp_sysctl_unregister(void);
void sctp_sysctl_register(void);
void sctp_sysctl_unregister(void);
#else
static inline void sctp_sysctl_register(void) { return; }
static inline void sctp_sysctl_unregister(void) { return; }
......@@ -322,9 +319,9 @@ static inline void sctp_sysctl_unregister(void) { return; }
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
extern int sctp_v6_init(void);
extern void sctp_v6_exit(void);
extern void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
int sctp_v6_init(void);
void sctp_v6_exit(void);
void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
int type, int code, int offset, __u32 info);
#else /* #ifdef defined(CONFIG_IPV6) */
......@@ -334,15 +331,26 @@ static inline void sctp_v6_exit(void) { return; }
#endif /* #if defined(CONFIG_IPV6) */
/* Some wrappers, in case crypto not available. */
#if defined (CONFIG_CRYPTO_HMAC)
#define sctp_crypto_alloc_tfm crypto_alloc_tfm
#define sctp_crypto_free_tfm crypto_free_tfm
#define sctp_crypto_hmac crypto_hmac
#else
#define sctp_crypto_alloc_tfm(x...) NULL
#define sctp_crypto_free_tfm(x...)
#define sctp_crypto_hmac(x...)
#endif
/* Map an association to an assoc_id. */
static inline sctp_assoc_t sctp_assoc2id(const sctp_association_t *asoc)
static inline sctp_assoc_t sctp_assoc2id(const struct sctp_association *asoc)
{
return (sctp_assoc_t) asoc;
}
/* Look up the association by its id. */
sctp_association_t *sctp_id2assoc(struct sock *sk, sctp_assoc_t id);
struct sctp_association *sctp_id2assoc(struct sock *sk, sctp_assoc_t id);
/* A macro to walk a list of skbs. */
......@@ -422,12 +430,16 @@ static inline __s32 sctp_jitter(__u32 rto)
}
/* Break down data chunks at this point. */
static inline int sctp_frag_point(int pmtu)
static inline int sctp_frag_point(const struct sctp_opt *sp, int pmtu)
{
pmtu -= SCTP_IP_OVERHEAD + sizeof(struct sctp_data_chunk);
pmtu -= sizeof(struct sctp_sack_chunk);
int frag = pmtu;
frag -= SCTP_IP_OVERHEAD + sizeof(struct sctp_data_chunk);
frag -= sizeof(struct sctp_sack_chunk);
if (sp->user_frag)
frag = min_t(int, frag, sp->user_frag);
return pmtu;
return frag;
}
/* Walk through a list of TLV parameters. Don't trust the
......@@ -475,7 +487,7 @@ static inline void tv_add(const struct timeval *entered, struct timeval *leaved)
extern struct proto sctp_prot;
extern struct proc_dir_entry *proc_net_sctp;
extern void sctp_put_port(struct sock *sk);
void sctp_put_port(struct sock *sk);
/* Static inline functions. */
......@@ -566,4 +578,26 @@ struct sctp6_sock {
#define sctp_sk(__sk) (&((struct sctp_sock *)__sk)->sctp)
/* Is a socket of this style? */
#define sctp_style(sk, style) __sctp_style((sk), (SCTP_SOCKET_##style))
int static inline __sctp_style(const struct sock *sk, sctp_socket_type_t style)
{
return sctp_sk(sk)->type == style;
}
/* Is the association in this state? */
#define sctp_state(asoc, state) __sctp_state((asoc), (SCTP_STATE_##state))
int static inline __sctp_state(const struct sctp_association *asoc,
sctp_state_t state)
{
return asoc->state == state;
}
/* Is the socket in this state? */
#define sctp_sstate(sk, state) __sctp_sstate((sk), (SCTP_SS_##state))
int static inline __sctp_sstate(const struct sock *sk, sctp_sock_state_t state)
{
return sk->state == state;
}
#endif /* __net_sctp_h__ */
include/net/sctp/sm.h
View file @ ce1de957
......@@ -6,10 +6,6 @@
*
* 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;
......@@ -50,7 +46,6 @@
* be incorporated into the next SCTP release.
*/
#include <linux/types.h>
#include <linux/compiler.h>
#include <linux/slab.h>
......@@ -81,8 +76,8 @@ typedef struct {
int action;
} sctp_sm_command_t;
typedef sctp_disposition_t (sctp_state_fn_t) (const sctp_endpoint_t *,
const sctp_association_t *,
typedef sctp_disposition_t (sctp_state_fn_t) (const struct sctp_endpoint *,
const struct sctp_association *,
const sctp_subtype_t type,
void *arg,
sctp_cmd_seq_t *);
......@@ -209,109 +204,104 @@ __u32 sctp_generate_verification_tag(void);
void sctp_populate_tie_tags(__u8 *cookie, __u32 curTag, __u32 hisTag);
/* Prototypes for chunk-building functions. */
sctp_chunk_t *sctp_make_init(const sctp_association_t *,
const sctp_bind_addr_t *,
int priority, int vparam_len);
sctp_chunk_t *sctp_make_init_ack(const sctp_association_t *,
const sctp_chunk_t *,
const int priority,
struct sctp_chunk *sctp_make_init(const struct sctp_association *,
const struct sctp_bind_addr *,
int gfp, int vparam_len);
struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *,
const struct sctp_chunk *,
const int gfp,
const int unkparam_len);
sctp_chunk_t *sctp_make_cookie_echo(const sctp_association_t *,
const sctp_chunk_t *);
sctp_chunk_t *sctp_make_cookie_ack(const sctp_association_t *,
const sctp_chunk_t *);
sctp_chunk_t *sctp_make_cwr(const sctp_association_t *,
struct sctp_chunk *sctp_make_cookie_echo(const struct sctp_association *,
const struct sctp_chunk *);
struct sctp_chunk *sctp_make_cookie_ack(const struct sctp_association *,
const struct sctp_chunk *);
struct sctp_chunk *sctp_make_cwr(const struct sctp_association *,
const __u32 lowest_tsn,
const sctp_chunk_t *);
sctp_chunk_t *sctp_make_datafrag(sctp_association_t *,
const struct sctp_chunk *);
struct sctp_chunk *sctp_make_datafrag(struct sctp_association *,
const struct sctp_sndrcvinfo *sinfo,
int len, const __u8 *data,
__u8 flags, __u16 ssn);
sctp_chunk_t * sctp_make_datafrag_empty(sctp_association_t *,
struct sctp_chunk * sctp_make_datafrag_empty(struct sctp_association *,
const struct sctp_sndrcvinfo *sinfo,
int len, const __u8 flags,
__u16 ssn);
sctp_chunk_t *sctp_make_data(sctp_association_t *,
struct sctp_chunk *sctp_make_data(struct sctp_association *,
const struct sctp_sndrcvinfo *sinfo,
int len, const __u8 *data);
sctp_chunk_t *sctp_make_data_empty(sctp_association_t *,
struct sctp_chunk *sctp_make_data_empty(struct sctp_association *,
const struct sctp_sndrcvinfo *, int len);
sctp_chunk_t *sctp_make_ecne(const sctp_association_t *,
struct sctp_chunk *sctp_make_ecne(const struct sctp_association *,
const __u32);
sctp_chunk_t *sctp_make_sack(const sctp_association_t *);
sctp_chunk_t *sctp_make_shutdown(const sctp_association_t *asoc);
sctp_chunk_t *sctp_make_shutdown_ack(const sctp_association_t *asoc,
const sctp_chunk_t *);
sctp_chunk_t *sctp_make_shutdown_complete(const sctp_association_t *,
const sctp_chunk_t *);
void sctp_init_cause(sctp_chunk_t *, __u16 cause, const void *, size_t);
sctp_chunk_t *sctp_make_abort(const sctp_association_t *,
const sctp_chunk_t *,
struct sctp_chunk *sctp_make_sack(const struct sctp_association *);
struct sctp_chunk *sctp_make_shutdown(const struct sctp_association *asoc);
struct sctp_chunk *sctp_make_shutdown_ack(const struct sctp_association *asoc,
const struct sctp_chunk *);
struct sctp_chunk *sctp_make_shutdown_complete(const struct sctp_association *,
const struct sctp_chunk *);
void sctp_init_cause(struct sctp_chunk *, __u16 cause, const void *, size_t);
struct sctp_chunk *sctp_make_abort(const struct sctp_association *,
const struct sctp_chunk *,
const size_t hint);
sctp_chunk_t *sctp_make_abort_no_data(const sctp_association_t *,
const sctp_chunk_t *,
struct sctp_chunk *sctp_make_abort_no_data(const struct sctp_association *,
const struct sctp_chunk *,
__u32 tsn);
sctp_chunk_t *sctp_make_abort_user(const sctp_association_t *,
const sctp_chunk_t *,
struct sctp_chunk *sctp_make_abort_user(const struct sctp_association *,
const struct sctp_chunk *,
const struct msghdr *);
sctp_chunk_t *sctp_make_heartbeat(const sctp_association_t *,
struct sctp_chunk *sctp_make_heartbeat(const struct sctp_association *,
const struct sctp_transport *,
const void *payload,
const size_t paylen);
sctp_chunk_t *sctp_make_heartbeat_ack(const sctp_association_t *,
const sctp_chunk_t *,
struct sctp_chunk *sctp_make_heartbeat_ack(const struct sctp_association *,
const struct sctp_chunk *,
const void *payload,
const size_t paylen);
sctp_chunk_t *sctp_make_op_error(const sctp_association_t *,
const sctp_chunk_t *chunk,
struct sctp_chunk *sctp_make_op_error(const struct sctp_association *,
const struct sctp_chunk *chunk,
__u16 cause_code,
const void *payload,
size_t paylen);
void sctp_chunk_assign_tsn(sctp_chunk_t *);
void sctp_chunk_assign_ssn(sctp_chunk_t *);
int sctp_datachunks_from_user(sctp_association_t *,
const struct sctp_sndrcvinfo *,
struct msghdr *, int len,
struct sk_buff_head *);
void sctp_chunk_assign_tsn(struct sctp_chunk *);
void sctp_chunk_assign_ssn(struct sctp_chunk *);
/* Prototypes for statetable processing. */
int sctp_do_sm(sctp_event_t event_type, sctp_subtype_t subtype,
sctp_state_t state,
sctp_endpoint_t *,
sctp_association_t *asoc,
struct sctp_endpoint *,
struct sctp_association *asoc,
void *event_arg,
int priority);
int gfp);
int sctp_side_effects(sctp_event_t event_type, sctp_subtype_t subtype,
sctp_state_t state,
sctp_endpoint_t *,
sctp_association_t *asoc,
struct sctp_endpoint *,
struct sctp_association *asoc,
void *event_arg,
sctp_disposition_t status,
sctp_cmd_seq_t *commands,
int priority);
int gfp);
/* 2nd level prototypes */
int
sctp_cmd_interpreter(sctp_event_t event_type, sctp_subtype_t subtype,
sctp_state_t state,
sctp_endpoint_t *ep,
sctp_association_t *asoc,
struct sctp_endpoint *ep,
struct sctp_association *asoc,
void *event_arg,
sctp_disposition_t status,
sctp_cmd_seq_t *retval,
int priority);
int gfp);
int sctp_gen_sack(sctp_association_t *, int force, sctp_cmd_seq_t *);
void sctp_do_TSNdup(sctp_association_t *, sctp_chunk_t *, long gap);
int sctp_gen_sack(struct sctp_association *, int force, sctp_cmd_seq_t *);
void sctp_do_TSNdup(struct sctp_association *, struct sctp_chunk *, long gap);
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_sackhdr_t *sctp_sm_pull_sack(struct sctp_chunk *);
struct sctp_packet *sctp_abort_pkt_new(const struct sctp_endpoint *,
const struct sctp_association *,
struct sctp_chunk *chunk,
......@@ -325,21 +315,21 @@ sctp_cookie_param_t *
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 *,
sctp_chunk_t *, int priority, int *err,
sctp_chunk_t **err_chk_p);
int sctp_addip_addr_config(sctp_association_t *, sctp_param_t,
struct sctp_association *sctp_unpack_cookie(const struct sctp_endpoint *,
const struct sctp_association *,
struct sctp_chunk *, int gfp, int *err,
struct sctp_chunk **err_chk_p);
int sctp_addip_addr_config(struct sctp_association *, sctp_param_t,
struct sockaddr_storage*, int);
void sctp_send_stale_cookie_err(const sctp_endpoint_t *ep,
const sctp_association_t *asoc,
const sctp_chunk_t *chunk,
void sctp_send_stale_cookie_err(const struct sctp_endpoint *ep,
const struct sctp_association *asoc,
const struct sctp_chunk *chunk,
sctp_cmd_seq_t *commands,
sctp_chunk_t *err_chunk);
struct sctp_chunk *err_chunk);
/* 3rd level prototypes */
__u32 sctp_generate_tag(const sctp_endpoint_t *);
__u32 sctp_generate_tsn(const sctp_endpoint_t *);
__u32 sctp_generate_tag(const struct sctp_endpoint *);
__u32 sctp_generate_tsn(const struct sctp_endpoint *);
/* 4th level prototypes */
void sctp_param2sockaddr(union sctp_addr *addr, sctp_addr_param_t *,
......@@ -361,7 +351,7 @@ extern sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES];
/* Get the size of a DATA chunk payload. */
static inline __u16 sctp_data_size(sctp_chunk_t *chunk)
static inline __u16 sctp_data_size(struct sctp_chunk *chunk)
{
__u16 size;
......@@ -449,8 +439,8 @@ static inline void sctp_add_cmd_sf(sctp_cmd_seq_t *seq, sctp_verb_t verb, sctp_a
* tag and the T bit is set in the Chunk Flags.
*/
static inline int
sctp_vtag_verify_either(const sctp_chunk_t *chunk,
const sctp_association_t *asoc)
sctp_vtag_verify_either(const struct sctp_chunk *chunk,
const struct sctp_association *asoc)
{
/* RFC 2960 Section 8.5.1, sctpimpguide-06 Section 2.13.2
*
......
include/net/sctp/structs.h
View file @ ce1de957
This diff is collapsed.
include/net/sctp/tsnmap.h
View file @ ce1de957
......@@ -114,7 +114,7 @@ struct sctp_tsnmap_iter {
};
/* Create a new tsnmap. */
struct sctp_tsnmap *sctp_tsnmap_new(__u16 len, __u32 init_tsn, int priority);
struct sctp_tsnmap *sctp_tsnmap_new(__u16 len, __u32 init_tsn, int gfp);
/* Dispose of a tsnmap. */
void sctp_tsnmap_free(struct sctp_tsnmap *);
......
include/net/sctp/ulpevent.h
View file @ ce1de957
......@@ -10,13 +10,15 @@
* sctp_ulpevent type is used to carry information from the state machine
* upwards to the ULP.
*
* This file is part of the SCTP kernel reference Implementation
*
* 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.
......@@ -27,9 +29,14 @@
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Please send any bug reports or fixes you make to one of the
* following email addresses:
* Please send any bug reports or fixes you make to the
* email address(es):
* 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:
* Jon Grimm <jgrimm@us.ibm.com>
* La Monte H.P. Yarroll <piggy@acm.org>
* Karl Knutson <karl@athena.chicago.il.us>
......@@ -64,7 +71,7 @@ static inline struct sctp_ulpevent *sctp_skb2event(struct sk_buff *skb)
return (struct sctp_ulpevent *)skb->cb;
}
struct sctp_ulpevent *sctp_ulpevent_new(int size, int flags, int priority);
struct sctp_ulpevent *sctp_ulpevent_new(int size, int flags, int gfp);
struct sctp_ulpevent *sctp_ulpevent_init(struct sctp_ulpevent *, int flags);
void sctp_ulpevent_free(struct sctp_ulpevent *);
int sctp_ulpevent_is_notification(const struct sctp_ulpevent *);
......@@ -76,7 +83,7 @@ struct sctp_ulpevent *sctp_ulpevent_make_assoc_change(
__u16 error,
__u16 outbound,
__u16 inbound,
int priority);
int gfp);
struct sctp_ulpevent *sctp_ulpevent_make_peer_addr_change(
const struct sctp_association *asoc,
......@@ -84,32 +91,32 @@ struct sctp_ulpevent *sctp_ulpevent_make_peer_addr_change(
int flags,
int state,
int error,
int priority);
int gfp);
struct sctp_ulpevent *sctp_ulpevent_make_remote_error(
const struct sctp_association *asoc,
struct sctp_chunk *chunk,
__u16 flags,
int priority);
int gfp);
struct sctp_ulpevent *sctp_ulpevent_make_send_failed(
const struct sctp_association *asoc,
struct sctp_chunk *chunk,
__u16 flags,
__u32 error,
int priority);
int gfp);
struct sctp_ulpevent *sctp_ulpevent_make_shutdown_event(
const struct sctp_association *asoc,
__u16 flags,
int priority);
int gfp);
struct sctp_ulpevent *sctp_ulpevent_make_pdapi(
const struct sctp_association *asoc,
__u32 indication, int priority);
__u32 indication, int gfp);
struct sctp_ulpevent *sctp_ulpevent_make_rcvmsg(struct sctp_association *asoc,
struct sctp_chunk *chunk,
int priority);
int gfp);
void sctp_ulpevent_read_sndrcvinfo(const struct sctp_ulpevent *event,
struct msghdr *);
......
include/net/sctp/ulpqueue.h
View file @ ce1de957
......@@ -50,14 +50,15 @@
struct sctp_ulpq {
char malloced;
char pd_mode;
sctp_association_t *asoc;
struct sctp_association *asoc;
struct sk_buff_head reasm;
struct sk_buff_head lobby;
};
/* Prototypes. */
struct sctp_ulpq *sctp_ulpq_new(sctp_association_t *asoc, int priority);
struct sctp_ulpq *sctp_ulpq_init(struct sctp_ulpq *, sctp_association_t *);
struct sctp_ulpq *sctp_ulpq_new(struct sctp_association *asoc, int gfp);
struct sctp_ulpq *sctp_ulpq_init(struct sctp_ulpq *,
struct sctp_association *);
void sctp_ulpq_free(struct sctp_ulpq *);
/* Add a new DATA chunk for processing. */
......
include/net/sctp/user.h
View file @ ce1de957
......@@ -110,6 +110,10 @@ enum sctp_optname {
#define SCTP_GET_LOCAL_ADDRS SCTP_GET_LOCAL_ADDRS
SCTP_NODELAY, /* Get/set nodelay option. */
#define SCTP_NODELAY SCTP_NODELAY
SCTP_I_WANT_MAPPED_V4_ADDR, /* Turn on/off mapped v4 addresses */
#define SCTP_I_WANT_MAPPED_V4_ADDR SCTP_I_WANT_MAPPED_V4_ADDR
SCTP_MAXSEG, /* Get/set maximum fragment. */
#define SCTP_MAXSEG SCTP_MAXSEG
};
......
net/sctp/Kconfig
View file @ ce1de957
......@@ -47,8 +47,8 @@ config SCTP_ADLER32
This has been deprecated and replaced by an algorithm now referred
to as crc32c.
If you say Y, this will use the Adler-32 algorithm, this might be useful
for interoperation with downlevel peers.
If you say Y, this will use the Adler-32 algorithm, this might be
useful for interoperation with downlevel peers.
If unsure, say N.
......@@ -58,19 +58,46 @@ config SCTP_DBG_MSG
help
If you say Y, this will enable verbose debugging messages.
If unsure, say N. However, if you are running into problems, use this
option to gather detailed trace information
If unsure, say N. However, if you are running into problems, use
this option to gather detailed trace information
config SCTP_DBG_OBJCNT
bool "SCTP: Debug object counts"
depends on IP_SCTP
help
If you say Y, this will enable debugging support for counting the types
of objects that are currently allocated. This is useful for identifying
memory leaks. If the /proc filesystem is enabled this debug information
can be viewed by 'cat /proc/net/sctp/sctp_dbg_objcnt'
If you say Y, this will enable debugging support for counting the
type of objects that are currently allocated. This is useful for
identifying memory leaks. If the /proc filesystem is enabled this
debug information can be viewed by
'cat /proc/net/sctp/sctp_dbg_objcnt'
If unsure, say N
endmenu
choice
prompt "SCTP: Cookie HMAC Algorithm"
help
HMAC algorithm to be used during association initialization. It
is strongly recommended to use HMAC-SHA1 or HMAC-MD5. See
configuration for Cryptographic API and enable those algorithms
to make usable by SCTP.
config SCTP_HMAC_NONE
bool "None"
help
Choosing this disables the use of an HMAC during association
establishment. It is advised to use either HMAC-MD5 or HMAC-SHA1.
config SCTP_HMAC_SHA1
bool "HMAC-SHA1" if CRYPTO_HMAC=y && CRYPTO_SHA1=y || CRYPTO_SHA1=m
help
Enable the use of HMAC-SHA1 during association establishment. It
is advised to use either HMAC-MD5 or HMAC-SHA1.
config SCTP_HMAC_MD5
bool "HMAC-MD5" if CRYPTO_HMAC=y && CRYPTO_MD5=y || CRYPTO_MD5=m
help
Enable the use of HMAC-MD5 during association establishment. It is
advised to use either HMAC-MD5 or HMAC-SHA1.
endchoice
endmenu
net/sctp/Makefile
View file @ ce1de957
......@@ -6,11 +6,10 @@ obj-$(CONFIG_IP_SCTP) += sctp.o
sctp-y := sm_statetable.o sm_statefuns.o sm_sideeffect.o \
protocol.o endpointola.o associola.o \
transport.o sm_make_chunk.o ulpevent.o \
transport.o chunk.o sm_make_chunk.o ulpevent.o \
inqueue.o outqueue.o ulpqueue.o command.o \
tsnmap.o bind_addr.o socket.o primitive.o \
output.o input.o hashdriver.o sla1.o \
debug.o ssnmap.o proc.o
output.o input.o debug.o ssnmap.o proc.o
ifeq ($(CONFIG_SCTP_ADLER32), y)
sctp-y += adler32.o
......
net/sctp/adler32.c
View file @ ce1de957
......@@ -156,6 +156,15 @@ __u32 sctp_update_cksum(__u8 *ptr, __u16 count, __u32 adler)
return adler;
}
__u32 sctp_update_copy_cksum(__u8 *to, __u8 *from, __u16 count, __u32 adler)
{
/* Its not worth it to try harder. Adler32 is obsolescent. */
adler = update_adler32(adler, from, count);
memcpy(to, from, count);
return adler;
}
__u32 sctp_end_cksum(__u32 adler)
{
return adler;
......
net/sctp/associola.c
View file @ ce1de957
This diff is collapsed.
net/sctp/bind_addr.c
View file @ ce1de957
......@@ -52,16 +52,17 @@
#include <net/sctp/sm.h>
/* Forward declarations for internal helpers. */
static int sctp_copy_one_addr(sctp_bind_addr_t *, union sctp_addr *,
static int sctp_copy_one_addr(struct sctp_bind_addr *, union sctp_addr *,
sctp_scope_t scope, int gfp, int flags);
static void sctp_bind_addr_clean(sctp_bind_addr_t *);
static void sctp_bind_addr_clean(struct sctp_bind_addr *);
/* First Level Abstractions. */
/* Copy 'src' to 'dest' taking 'scope' into account. Omit addresses
* in 'src' which have a broader scope than 'scope'.
*/
int sctp_bind_addr_copy(sctp_bind_addr_t *dest, const sctp_bind_addr_t *src,
int sctp_bind_addr_copy(struct sctp_bind_addr *dest,
const struct sctp_bind_addr *src,
sctp_scope_t scope, int gfp, int flags)
{
struct sockaddr_storage_list *addr;
......@@ -80,6 +81,22 @@ int sctp_bind_addr_copy(sctp_bind_addr_t *dest, const sctp_bind_addr_t *src,
goto out;
}
/* If there are no addresses matching the scope and
* this is global scope, try to get a link scope address, with
* the assumption that we must be sitting behind a NAT.
*/
if (list_empty(&dest->address_list) && (SCTP_SCOPE_GLOBAL == scope)) {
list_for_each(pos, &src->address_list) {
addr = list_entry(pos, struct sockaddr_storage_list,
list);
error = sctp_copy_one_addr(dest, &addr->a,
SCTP_SCOPE_LINK, gfp,
flags);
if (error < 0)
goto out;
}
}
out:
if (error)
sctp_bind_addr_clean(dest);
......@@ -88,11 +105,11 @@ int sctp_bind_addr_copy(sctp_bind_addr_t *dest, const sctp_bind_addr_t *src,
}
/* Create a new SCTP_bind_addr from nothing. */
sctp_bind_addr_t *sctp_bind_addr_new(int gfp)
struct sctp_bind_addr *sctp_bind_addr_new(int gfp)
{
sctp_bind_addr_t *retval;
struct sctp_bind_addr *retval;
retval = t_new(sctp_bind_addr_t, gfp);
retval = t_new(struct sctp_bind_addr, gfp);
if (!retval)
goto nomem;
......@@ -107,7 +124,7 @@ sctp_bind_addr_t *sctp_bind_addr_new(int gfp)
/* Initialize the SCTP_bind_addr structure for either an endpoint or
* an association.
*/
void sctp_bind_addr_init(sctp_bind_addr_t *bp, __u16 port)
void sctp_bind_addr_init(struct sctp_bind_addr *bp, __u16 port)
{
bp->malloced = 0;
......@@ -116,7 +133,7 @@ void sctp_bind_addr_init(sctp_bind_addr_t *bp, __u16 port)
}
/* Dispose of the address list. */
static void sctp_bind_addr_clean(sctp_bind_addr_t *bp)
static void sctp_bind_addr_clean(struct sctp_bind_addr *bp)
{
struct sockaddr_storage_list *addr;
struct list_head *pos, *temp;
......@@ -131,7 +148,7 @@ static void sctp_bind_addr_clean(sctp_bind_addr_t *bp)
}
/* Dispose of an SCTP_bind_addr structure */
void sctp_bind_addr_free(sctp_bind_addr_t *bp)
void sctp_bind_addr_free(struct sctp_bind_addr *bp)
{
/* Empty the bind address list. */
sctp_bind_addr_clean(bp);
......@@ -143,7 +160,7 @@ void sctp_bind_addr_free(sctp_bind_addr_t *bp)
}
/* Add an address to the bind address list in the SCTP_bind_addr structure. */
int sctp_add_bind_addr(sctp_bind_addr_t *bp, union sctp_addr *new,
int sctp_add_bind_addr(struct sctp_bind_addr *bp, union sctp_addr *new,
int gfp)
{
struct sockaddr_storage_list *addr;
......@@ -171,7 +188,7 @@ int sctp_add_bind_addr(sctp_bind_addr_t *bp, union sctp_addr *new,
/* Delete an address from the bind address list in the SCTP_bind_addr
* structure.
*/
int sctp_del_bind_addr(sctp_bind_addr_t *bp, union sctp_addr *del_addr)
int sctp_del_bind_addr(struct sctp_bind_addr *bp, union sctp_addr *del_addr)
{
struct list_head *pos, *temp;
struct sockaddr_storage_list *addr;
......@@ -196,7 +213,7 @@ int sctp_del_bind_addr(sctp_bind_addr_t *bp, union sctp_addr *del_addr)
*
* The second argument is the return value for the length.
*/
union sctp_params sctp_bind_addrs_to_raw(const sctp_bind_addr_t *bp,
union sctp_params sctp_bind_addrs_to_raw(const struct sctp_bind_addr *bp,
int *addrs_len, int gfp)
{
union sctp_params addrparms;
......@@ -214,6 +231,14 @@ union sctp_params sctp_bind_addrs_to_raw(const sctp_bind_addr_t *bp,
len += sizeof(sctp_addr_param_t);
}
/* Don't even bother embedding an address if there
* is only one.
*/
if (len == sizeof(sctp_addr_param_t)) {
retval.v = NULL;
goto end_raw;
}
retval.v = kmalloc(len, gfp);
if (!retval.v)
goto end_raw;
......@@ -237,7 +262,7 @@ union sctp_params sctp_bind_addrs_to_raw(const sctp_bind_addr_t *bp,
* Create an address list out of the raw address list format (IPv4 and IPv6
* address parameters).
*/
int sctp_raw_to_bind_addrs(sctp_bind_addr_t *bp, __u8 *raw_addr_list,
int sctp_raw_to_bind_addrs(struct sctp_bind_addr *bp, __u8 *raw_addr_list,
int addrs_len, __u16 port, int gfp)
{
sctp_addr_param_t *rawaddr;
......@@ -283,7 +308,8 @@ int sctp_raw_to_bind_addrs(sctp_bind_addr_t *bp, __u8 *raw_addr_list,
********************************************************************/
/* Does this contain a specified address? Allow wildcarding. */
int sctp_bind_addr_match(sctp_bind_addr_t *bp, const union sctp_addr *addr,
int sctp_bind_addr_match(struct sctp_bind_addr *bp,
const union sctp_addr *addr,
struct sctp_opt *opt)
{
struct sockaddr_storage_list *laddr;
......@@ -299,7 +325,8 @@ int sctp_bind_addr_match(sctp_bind_addr_t *bp, const union sctp_addr *addr,
}
/* Copy out addresses from the global local address list. */
static int sctp_copy_one_addr(sctp_bind_addr_t *dest, union sctp_addr *addr,
static int sctp_copy_one_addr(struct sctp_bind_addr *dest,
union sctp_addr *addr,
sctp_scope_t scope, int gfp, int flags)
{
struct sctp_protocol *proto = sctp_get_protocol();
......
net/sctp/chunk.c 0 → 100644
View file @ ce1de957
/* SCTP kernel reference Implementation
* Copyright (c) 2003 International Business Machines Corp.
*
* This file is part of the SCTP kernel reference Implementation
*
* This file contains the code relating the the chunk abstraction.
*
* 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
* 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.
*
* Please send any bug reports or fixes you make to the
* email address(es):
* 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:
* Jon Grimm <jgrimm@us.ibm.com>
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorporated into the next SCTP release.
*/
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/net.h>
#include <linux/inet.h>
#include <linux/skbuff.h>
#include <net/sock.h>
#include <net/sctp/sctp.h>
#include <net/sctp/sm.h>
/* This file is mostly in anticipation of future work, but initially
* populate with fragment tracking for an outbound message.
*/
/* Initialize datamsg from memory. */
void sctp_datamsg_init(struct sctp_datamsg *msg)
{
atomic_set(&msg->refcnt, 1);
msg->send_failed = 0;
msg->send_error = 0;
msg->can_expire = 0;
INIT_LIST_HEAD(&msg->chunks);
}
/* Allocate and initialize datamsg. */
struct sctp_datamsg *sctp_datamsg_new(int gfp)
{
struct sctp_datamsg *msg;
msg = kmalloc(sizeof(struct sctp_datamsg), gfp);
if (msg)
sctp_datamsg_init(msg);
SCTP_DBG_OBJCNT_INC(datamsg);
return msg;
}
/* Final destructruction of datamsg memory. */
static void sctp_datamsg_destroy(struct sctp_datamsg *msg)
{
struct list_head *pos, *temp;
struct sctp_chunk *chunk;
struct sctp_opt *sp;
struct sctp_ulpevent *ev;
struct sctp_association *asoc = NULL;
int error = 0, notify;
/* If we failed, we may need to notify. */
notify = msg->send_failed ? -1 : 0;
/* Release all references. */
list_for_each_safe(pos, temp, &msg->chunks) {
list_del(pos);
chunk = list_entry(pos, struct sctp_chunk, frag_list);
/* Check whether we _really_ need to notify. */
if (notify < 0) {
asoc = chunk->asoc;
if (msg->send_error)
error = msg->send_error;
else
error = asoc->outqueue.error;
sp = sctp_sk(asoc->base.sk);
notify = sctp_ulpevent_type_enabled(SCTP_SEND_FAILED,
&sp->subscribe);
}
/* Generate a SEND FAILED event only if enabled. */
if (notify > 0) {
int sent;
if (chunk->has_tsn)
sent = SCTP_DATA_SENT;
else
sent = SCTP_DATA_UNSENT;
ev = sctp_ulpevent_make_send_failed(asoc, chunk, sent,
error, GFP_ATOMIC);
if (ev)
sctp_ulpq_tail_event(&asoc->ulpq, ev);
}
sctp_chunk_put(chunk);
}
SCTP_DBG_OBJCNT_DEC(datamsg);
kfree(msg);
}
/* Hold a reference. */
void sctp_datamsg_hold(struct sctp_datamsg *msg)
{
atomic_inc(&msg->refcnt);
}
/* Release a reference. */
void sctp_datamsg_put(struct sctp_datamsg *msg)
{
if (atomic_dec_and_test(&msg->refcnt))
sctp_datamsg_destroy(msg);
}
/* Free a message. Really just give up a reference, the
* really free happens in sctp_datamsg_destroy().
*/
void sctp_datamsg_free(struct sctp_datamsg *msg)
{
sctp_datamsg_put(msg);
}
/* Hold on to all the fragments until all chunks have been sent. */
void sctp_datamsg_track(struct sctp_chunk *chunk)
{
sctp_chunk_hold(chunk);
}
/* Assign a chunk to this datamsg. */
void sctp_datamsg_assign(struct sctp_datamsg *msg, struct sctp_chunk *chunk)
{
sctp_datamsg_hold(msg);
chunk->msg = msg;
}
/* A data chunk can have a maximum payload of (2^16 - 20). Break
* down any such message into smaller chunks. Opportunistically, fragment
* the chunks down to the current MTU constraints. We may get refragmented
* later if the PMTU changes, but it is _much better_ to fragment immediately
* with a reasonable guess than always doing our fragmentation on the
* soft-interrupt.
*/
struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
struct sctp_sndrcvinfo *sinfo,
struct msghdr *msgh, int msg_len)
{
int max, whole, i, offset, over, err;
int len, first_len;
struct sctp_chunk *chunk;
struct sctp_datamsg *msg;
struct list_head *pos, *temp;
__u8 frag;
msg = sctp_datamsg_new(GFP_KERNEL);
if (!msg)
return NULL;
/* Note: Calculate this outside of the loop, so that all fragments
* have the same expiration.
*/
if (sinfo->sinfo_timetolive) {
struct timeval tv;
__u32 ttl = sinfo->sinfo_timetolive;
/* sinfo_timetolive is in milliseconds */
tv.tv_sec = ttl / 1000;
tv.tv_usec = ttl % 1000 * 1000;
msg->expires_at = jiffies + timeval_to_jiffies(&tv);
msg->can_expire = 1;
}
/* What is a reasonable fragmentation point right now? */
max = asoc->pmtu;
if (max < SCTP_MIN_PMTU)
max = SCTP_MIN_PMTU;
max -= SCTP_IP_OVERHEAD;
/* Make sure not beyond maximum chunk size. */
if (max > SCTP_MAX_CHUNK_LEN)
max = SCTP_MAX_CHUNK_LEN;
/* Subtract out the overhead of a data chunk header. */
max -= sizeof(struct sctp_data_chunk);
whole = 0;
/* If user has specified smaller fragmentation, make it so. */
if (sctp_sk(asoc->base.sk)->user_frag)
max = min_t(int, max, sctp_sk(asoc->base.sk)->user_frag);
first_len = max;
/* Encourage Cookie-ECHO bundling. */
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. */
if (whole) {
first_len = max - SCTP_ARBITRARY_COOKIE_ECHO_LEN;
msg_len -= first_len;
whole = 1;
}
}
/* How many full sized? How many bytes leftover? */
whole += msg_len / max;
over = msg_len % max;
offset = 0;
if ((whole > 1) || (whole && over))
SCTP_INC_STATS_USER(SctpFragUsrMsgs);
/* Create chunks for all the full sized DATA chunks. */
for (i=0, len=first_len; i < whole; i++) {
frag = SCTP_DATA_MIDDLE_FRAG;
if (0 == i)
frag |= SCTP_DATA_FIRST_FRAG;
if ((i == (whole - 1)) && !over)
frag |= SCTP_DATA_LAST_FRAG;
chunk = sctp_make_datafrag_empty(asoc, sinfo, len, frag, 0);
if (!chunk)
goto errout;
err = sctp_user_addto_chunk(chunk, offset, len, msgh->msg_iov);
if (err < 0)
goto errout;
offset += len;
/* Put the chunk->skb back into the form expected by send. */
__skb_pull(chunk->skb, (__u8 *)chunk->chunk_hdr
- (__u8 *)chunk->skb->data);
sctp_datamsg_assign(msg, chunk);
list_add_tail(&chunk->frag_list, &msg->chunks);
/* The first chunk, the first chunk was likely short
* to allow bundling, so reset to full size.
*/
if (0 == i)
len = max;
}
/* .. now the leftover bytes. */
if (over) {
if (!whole)
frag = SCTP_DATA_NOT_FRAG;
else
frag = SCTP_DATA_LAST_FRAG;
chunk = sctp_make_datafrag_empty(asoc, sinfo, over, frag, 0);
if (!chunk)
goto errout;
err = sctp_user_addto_chunk(chunk, offset, over,msgh->msg_iov);
/* Put the chunk->skb back into the form expected by send. */
__skb_pull(chunk->skb, (__u8 *)chunk->chunk_hdr
- (__u8 *)chunk->skb->data);
if (err < 0)
goto errout;
sctp_datamsg_assign(msg, chunk);
list_add_tail(&chunk->frag_list, &msg->chunks);
}
return msg;
errout:
list_for_each_safe(pos, temp, &msg->chunks) {
list_del(pos);
chunk = list_entry(pos, struct sctp_chunk, frag_list);
sctp_chunk_free(chunk);
}
sctp_datamsg_free(msg);
return NULL;
}
/* Check whether this message has expired. */
int sctp_datamsg_expires(struct sctp_chunk *chunk)
{
struct sctp_datamsg *msg = chunk->msg;
/* FIXME: When PR-SCTP is supported we can make this
* check more lenient.
*/
if (!msg->can_expire)
return 0;
if (time_after(jiffies, msg->expires_at))
return 1;
return 0;
}
/* This chunk (and consequently entire message) has failed in its sending. */
void sctp_datamsg_fail(struct sctp_chunk *chunk, int error)
{
chunk->msg->send_failed = 1;
chunk->msg->send_error = error;
}
net/sctp/command.c
View file @ ce1de957
......@@ -43,9 +43,9 @@
#include <net/sctp/sm.h>
/* Create a new sctp_command_sequence. */
sctp_cmd_seq_t *sctp_new_cmd_seq(int priority)
sctp_cmd_seq_t *sctp_new_cmd_seq(int gfp)
{
sctp_cmd_seq_t *retval = t_new(sctp_cmd_seq_t, priority);
sctp_cmd_seq_t *retval = t_new(sctp_cmd_seq_t, gfp);
if (retval)
sctp_init_cmd_seq(retval);
......
net/sctp/crc32c.c
View file @ ce1de957
......@@ -170,6 +170,23 @@ __u32 sctp_update_cksum(__u8 *buffer, __u16 length, __u32 crc32)
return crc32;
}
__u32 sctp_update_copy_cksum(__u8 *to, __u8 *from, __u16 length, __u32 crc32)
{
__u32 i;
__u32 *_to = (__u32 *)to;
__u32 *_from = (__u32 *)from;
for (i = 0; i < (length/4); i++) {
_to[i] = _from[i];
CRC32C(crc32, from[i*4]);
CRC32C(crc32, from[i*4+1]);
CRC32C(crc32, from[i*4+2]);
CRC32C(crc32, from[i*4+3]);
}
return crc32;
}
__u32 sctp_end_cksum(__u32 crc32)
{
__u32 result;
......
net/sctp/endpointola.c
View file @ ce1de957
......@@ -54,27 +54,27 @@
#include <linux/slab.h>
#include <linux/in.h>
#include <linux/random.h> /* get_random_bytes() */
#include <linux/crypto.h>
#include <net/sock.h>
#include <net/ipv6.h>
#include <net/sctp/sctp.h>
#include <net/sctp/sm.h>
/* Forward declarations for internal helpers. */
static void sctp_endpoint_bh_rcv(sctp_endpoint_t *ep);
static void sctp_endpoint_bh_rcv(struct sctp_endpoint *ep);
/* Create a sctp_endpoint_t with all that boring stuff initialized.
/* Create a sctp_endpoint with all that boring stuff initialized.
* Returns NULL if there isn't enough memory.
*/
sctp_endpoint_t *sctp_endpoint_new(struct sctp_protocol *proto,
struct sock *sk, int priority)
struct sctp_endpoint *sctp_endpoint_new(struct sock *sk, int gfp)
{
sctp_endpoint_t *ep;
struct sctp_endpoint *ep;
/* Build a local endpoint. */
ep = t_new(sctp_endpoint_t, priority);
ep = t_new(struct sctp_endpoint, gfp);
if (!ep)
goto fail;
if (!sctp_endpoint_init(ep, proto, sk, priority))
if (!sctp_endpoint_init(ep, sk, gfp))
goto fail_init;
ep->base.malloced = 1;
SCTP_DBG_OBJCNT_INC(ep);
......@@ -89,12 +89,11 @@ sctp_endpoint_t *sctp_endpoint_new(struct sctp_protocol *proto,
/*
* Initialize the base fields of the endpoint structure.
*/
sctp_endpoint_t *sctp_endpoint_init(sctp_endpoint_t *ep,
struct sctp_protocol *proto,
struct sock *sk, int priority)
struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
struct sock *sk, int gfp)
{
struct sctp_opt *sp = sctp_sk(sk);
memset(ep, 0, sizeof(sctp_endpoint_t));
memset(ep, 0, sizeof(struct sctp_endpoint));
/* Initialize the base structure. */
/* What type of endpoint are we? */
......@@ -110,8 +109,7 @@ sctp_endpoint_t *sctp_endpoint_init(sctp_endpoint_t *ep,
/* Set its top-half handler */
sctp_inq_set_th_handler(&ep->base.inqueue,
(void (*)(void *))sctp_endpoint_bh_rcv,
ep);
(void (*)(void *))sctp_endpoint_bh_rcv, ep);
/* Initialize the bind addr area */
sctp_bind_addr_init(&ep->base.bind_addr, 0);
......@@ -121,11 +119,6 @@ sctp_endpoint_t *sctp_endpoint_init(sctp_endpoint_t *ep,
ep->base.sk = sk;
sock_hold(ep->base.sk);
/* This pointer is useful to access the default protocol parameter
* values.
*/
ep->proto = proto;
/* Create the lists of associations. */
INIT_LIST_HEAD(&ep->asocs);
......@@ -175,7 +168,8 @@ sctp_endpoint_t *sctp_endpoint_init(sctp_endpoint_t *ep,
}
/* Add an association to an endpoint. */
void sctp_endpoint_add_asoc(sctp_endpoint_t *ep, sctp_association_t *asoc)
void sctp_endpoint_add_asoc(struct sctp_endpoint *ep,
struct sctp_association *asoc)
{
struct sock *sk = ep->base.sk;
......@@ -183,22 +177,21 @@ void sctp_endpoint_add_asoc(sctp_endpoint_t *ep, sctp_association_t *asoc)
list_add_tail(&asoc->asocs, &ep->asocs);
/* Increment the backlog value for a TCP-style listening socket. */
if ((SCTP_SOCKET_TCP == sctp_sk(sk)->type) &&
(SCTP_SS_LISTENING == sk->state))
if (sctp_style(sk, TCP) && sctp_sstate(sk, LISTENING))
sk->ack_backlog++;
}
/* Free the endpoint structure. Delay cleanup until
* all users have released their reference count on this structure.
*/
void sctp_endpoint_free(sctp_endpoint_t *ep)
void sctp_endpoint_free(struct sctp_endpoint *ep)
{
ep->base.dead = 1;
sctp_endpoint_put(ep);
}
/* Final destructor for endpoint. */
void sctp_endpoint_destroy(sctp_endpoint_t *ep)
void sctp_endpoint_destroy(struct sctp_endpoint *ep)
{
SCTP_ASSERT(ep->base.dead, "Endpoint is not dead", return);
......@@ -207,9 +200,12 @@ void sctp_endpoint_destroy(sctp_endpoint_t *ep)
/* Unlink this endpoint, so we can't find it again! */
sctp_unhash_endpoint(ep);
/* Cleanup the inqueue. */
sctp_inq_free(&ep->base.inqueue);
/* Free up the HMAC transform. */
if (sctp_sk(ep->base.sk)->hmac)
sctp_crypto_free_tfm(sctp_sk(ep->base.sk)->hmac);
/* Cleanup. */
sctp_inq_free(&ep->base.inqueue);
sctp_bind_addr_free(&ep->base.bind_addr);
/* Remove and free the port */
......@@ -228,7 +224,7 @@ void sctp_endpoint_destroy(sctp_endpoint_t *ep)
}
/* Hold a reference to an endpoint. */
void sctp_endpoint_hold(sctp_endpoint_t *ep)
void sctp_endpoint_hold(struct sctp_endpoint *ep)
{
atomic_inc(&ep->base.refcnt);
}
......@@ -236,17 +232,17 @@ void sctp_endpoint_hold(sctp_endpoint_t *ep)
/* Release a reference to an endpoint and clean up if there are
* no more references.
*/
void sctp_endpoint_put(sctp_endpoint_t *ep)
void sctp_endpoint_put(struct sctp_endpoint *ep)
{
if (atomic_dec_and_test(&ep->base.refcnt))
sctp_endpoint_destroy(ep);
}
/* Is this the endpoint we are looking for? */
sctp_endpoint_t *sctp_endpoint_is_match(sctp_endpoint_t *ep,
struct sctp_endpoint *sctp_endpoint_is_match(struct sctp_endpoint *ep,
const union sctp_addr *laddr)
{
sctp_endpoint_t *retval;
struct sctp_endpoint *retval;
sctp_read_lock(&ep->base.addr_lock);
if (ep->base.bind_addr.port == laddr->v4.sin_port) {
......@@ -268,19 +264,19 @@ sctp_endpoint_t *sctp_endpoint_is_match(sctp_endpoint_t *ep,
* We do a linear search of the associations for this endpoint.
* We return the matching transport address too.
*/
sctp_association_t *__sctp_endpoint_lookup_assoc(
const sctp_endpoint_t *endpoint,
struct sctp_association *__sctp_endpoint_lookup_assoc(
const struct sctp_endpoint *ep,
const union sctp_addr *paddr,
struct sctp_transport **transport)
{
int rport;
sctp_association_t *asoc;
struct sctp_association *asoc;
struct list_head *pos;
rport = paddr->v4.sin_port;
list_for_each(pos, &endpoint->asocs) {
asoc = list_entry(pos, sctp_association_t, asocs);
list_for_each(pos, &ep->asocs) {
asoc = list_entry(pos, struct sctp_association, asocs);
if (rport == asoc->peer.port) {
sctp_read_lock(&asoc->base.addr_lock);
*transport = sctp_assoc_lookup_paddr(asoc, paddr);
......@@ -296,12 +292,12 @@ sctp_association_t *__sctp_endpoint_lookup_assoc(
}
/* Lookup association on an endpoint based on a peer address. BH-safe. */
sctp_association_t *sctp_endpoint_lookup_assoc(
const sctp_endpoint_t *ep,
struct sctp_association *sctp_endpoint_lookup_assoc(
const struct sctp_endpoint *ep,
const union sctp_addr *paddr,
struct sctp_transport **transport)
{
sctp_association_t *asoc;
struct sctp_association *asoc;
sctp_local_bh_disable();
asoc = __sctp_endpoint_lookup_assoc(ep, paddr, transport);
......@@ -313,12 +309,12 @@ sctp_association_t *sctp_endpoint_lookup_assoc(
/* Look for any peeled off association from the endpoint that matches the
* given peer address.
*/
int sctp_endpoint_is_peeled_off(sctp_endpoint_t *ep,
int sctp_endpoint_is_peeled_off(struct sctp_endpoint *ep,
const union sctp_addr *paddr)
{
struct list_head *pos;
struct sockaddr_storage_list *addr;
sctp_bind_addr_t *bp;
struct sctp_bind_addr *bp;
sctp_read_lock(&ep->base.addr_lock);
bp = &ep->base.bind_addr;
......@@ -337,12 +333,12 @@ int sctp_endpoint_is_peeled_off(sctp_endpoint_t *ep,
/* Do delayed input processing. This is scheduled by sctp_rcv().
* This may be called on BH or task time.
*/
static void sctp_endpoint_bh_rcv(sctp_endpoint_t *ep)
static void sctp_endpoint_bh_rcv(struct sctp_endpoint *ep)
{
sctp_association_t *asoc;
struct sctp_association *asoc;
struct sock *sk;
struct sctp_transport *transport;
sctp_chunk_t *chunk;
struct sctp_chunk *chunk;
struct sctp_inq *inqueue;
sctp_subtype_t subtype;
sctp_state_t state;
......
net/sctp/input.c
View file @ ce1de957
......@@ -63,11 +63,11 @@
/* Forward declarations for internal helpers. */
static int sctp_rcv_ootb(struct sk_buff *);
sctp_association_t *__sctp_rcv_lookup(struct sk_buff *skb,
struct sctp_association *__sctp_rcv_lookup(struct sk_buff *skb,
const union sctp_addr *laddr,
const union sctp_addr *paddr,
struct sctp_transport **transportp);
sctp_endpoint_t *__sctp_rcv_lookup_endpoint(const union sctp_addr *laddr);
struct sctp_endpoint *__sctp_rcv_lookup_endpoint(const union sctp_addr *laddr);
/* Calculate the SCTP checksum of an SCTP packet. */
......@@ -102,11 +102,11 @@ static inline int sctp_rcv_checksum(struct sk_buff *skb)
int sctp_rcv(struct sk_buff *skb)
{
struct sock *sk;
sctp_association_t *asoc;
sctp_endpoint_t *ep = NULL;
sctp_endpoint_common_t *rcvr;
struct sctp_association *asoc;
struct sctp_endpoint *ep = NULL;
struct sctp_ep_common *rcvr;
struct sctp_transport *transport = NULL;
sctp_chunk_t *chunk;
struct sctp_chunk *chunk;
struct sctphdr *sh;
union sctp_addr src;
union sctp_addr dest;
......@@ -224,9 +224,7 @@ int sctp_rcv(struct sk_buff *skb)
return ret;
bad_packet:
#if 0 /* FIXME */
SCTP_INC_STATS(SctpInErrs);
#endif /* FIXME*/
SCTP_INC_STATS(SctpChecksumErrors);
discard_it:
kfree_skb(skb);
......@@ -252,13 +250,13 @@ int sctp_rcv(struct sk_buff *skb)
*/
int sctp_backlog_rcv(struct sock *sk, struct sk_buff *skb)
{
sctp_chunk_t *chunk;
struct sctp_chunk *chunk;
struct sctp_inq *inqueue;
/* One day chunk will live inside the skb, but for
* now this works.
*/
chunk = (sctp_chunk_t *) skb;
chunk = (struct sctp_chunk *) skb;
inqueue = &chunk->rcvr->inqueue;
sctp_inq_push(inqueue, chunk);
......@@ -389,8 +387,8 @@ void sctp_v4_err(struct sk_buff *skb, __u32 info)
int type = skb->h.icmph->type;
int code = skb->h.icmph->code;
struct sock *sk;
sctp_endpoint_t *ep;
sctp_association_t *asoc;
struct sctp_endpoint *ep;
struct sctp_association *asoc;
struct sctp_transport *transport;
struct inet_opt *inet;
char *saveip, *savesctp;
......@@ -520,10 +518,10 @@ int sctp_rcv_ootb(struct sk_buff *skb)
}
/* Insert endpoint into the hash table. */
void __sctp_hash_endpoint(sctp_endpoint_t *ep)
void __sctp_hash_endpoint(struct sctp_endpoint *ep)
{
sctp_endpoint_common_t **epp;
sctp_endpoint_common_t *epb;
struct sctp_ep_common **epp;
struct sctp_ep_common *epb;
sctp_hashbucket_t *head;
epb = &ep->base;
......@@ -542,7 +540,7 @@ void __sctp_hash_endpoint(sctp_endpoint_t *ep)
}
/* Add an endpoint to the hash. Local BH-safe. */
void sctp_hash_endpoint(sctp_endpoint_t *ep)
void sctp_hash_endpoint(struct sctp_endpoint *ep)
{
sctp_local_bh_disable();
__sctp_hash_endpoint(ep);
......@@ -550,10 +548,10 @@ void sctp_hash_endpoint(sctp_endpoint_t *ep)
}
/* Remove endpoint from the hash table. */
void __sctp_unhash_endpoint(sctp_endpoint_t *ep)
void __sctp_unhash_endpoint(struct sctp_endpoint *ep)
{
sctp_hashbucket_t *head;
sctp_endpoint_common_t *epb;
struct sctp_ep_common *epb;
epb = &ep->base;
......@@ -574,7 +572,7 @@ void __sctp_unhash_endpoint(sctp_endpoint_t *ep)
}
/* Remove endpoint from the hash. Local BH-safe. */
void sctp_unhash_endpoint(sctp_endpoint_t *ep)
void sctp_unhash_endpoint(struct sctp_endpoint *ep)
{
sctp_local_bh_disable();
__sctp_unhash_endpoint(ep);
......@@ -582,11 +580,11 @@ void sctp_unhash_endpoint(sctp_endpoint_t *ep)
}
/* Look up an endpoint. */
sctp_endpoint_t *__sctp_rcv_lookup_endpoint(const union sctp_addr *laddr)
struct sctp_endpoint *__sctp_rcv_lookup_endpoint(const union sctp_addr *laddr)
{
sctp_hashbucket_t *head;
sctp_endpoint_common_t *epb;
sctp_endpoint_t *ep;
struct sctp_ep_common *epb;
struct sctp_endpoint *ep;
int hash;
hash = sctp_ep_hashfn(laddr->v4.sin_port);
......@@ -609,7 +607,7 @@ sctp_endpoint_t *__sctp_rcv_lookup_endpoint(const union sctp_addr *laddr)
}
/* Add an association to the hash. Local BH-safe. */
void sctp_hash_established(sctp_association_t *asoc)
void sctp_hash_established(struct sctp_association *asoc)
{
sctp_local_bh_disable();
__sctp_hash_established(asoc);
......@@ -617,10 +615,10 @@ void sctp_hash_established(sctp_association_t *asoc)
}
/* Insert association into the hash table. */
void __sctp_hash_established(sctp_association_t *asoc)
void __sctp_hash_established(struct sctp_association *asoc)
{
sctp_endpoint_common_t **epp;
sctp_endpoint_common_t *epb;
struct sctp_ep_common **epp;
struct sctp_ep_common *epb;
sctp_hashbucket_t *head;
epb = &asoc->base;
......@@ -641,7 +639,7 @@ void __sctp_hash_established(sctp_association_t *asoc)
}
/* Remove association from the hash table. Local BH-safe. */
void sctp_unhash_established(sctp_association_t *asoc)
void sctp_unhash_established(struct sctp_association *asoc)
{
sctp_local_bh_disable();
__sctp_unhash_established(asoc);
......@@ -649,10 +647,10 @@ void sctp_unhash_established(sctp_association_t *asoc)
}
/* Remove association from the hash table. */
void __sctp_unhash_established(sctp_association_t *asoc)
void __sctp_unhash_established(struct sctp_association *asoc)
{
sctp_hashbucket_t *head;
sctp_endpoint_common_t *epb;
struct sctp_ep_common *epb;
epb = &asoc->base;
......@@ -674,13 +672,14 @@ void __sctp_unhash_established(sctp_association_t *asoc)
}
/* Look up an association. */
sctp_association_t *__sctp_lookup_association(const union sctp_addr *local,
struct sctp_association *__sctp_lookup_association(
const union sctp_addr *local,
const union sctp_addr *peer,
struct sctp_transport **pt)
{
sctp_hashbucket_t *head;
sctp_endpoint_common_t *epb;
sctp_association_t *asoc;
struct sctp_ep_common *epb;
struct sctp_association *asoc;
struct sctp_transport *transport;
int hash;
......@@ -710,11 +709,11 @@ sctp_association_t *__sctp_lookup_association(const union sctp_addr *local,
}
/* Look up an association. BH-safe. */
sctp_association_t *sctp_lookup_association(const union sctp_addr *laddr,
struct sctp_association *sctp_lookup_association(const union sctp_addr *laddr,
const union sctp_addr *paddr,
struct sctp_transport **transportp)
{
sctp_association_t *asoc;
struct sctp_association *asoc;
sctp_local_bh_disable();
asoc = __sctp_lookup_association(laddr, paddr, transportp);
......@@ -727,7 +726,7 @@ sctp_association_t *sctp_lookup_association(const union sctp_addr *laddr,
int sctp_has_association(const union sctp_addr *laddr,
const union sctp_addr *paddr)
{
sctp_association_t *asoc;
struct sctp_association *asoc;
struct sctp_transport *transport;
if ((asoc = sctp_lookup_association(laddr, paddr, &transport))) {
......@@ -757,10 +756,10 @@ int sctp_has_association(const union sctp_addr *laddr,
* in certain circumstances.
*
*/
static sctp_association_t *__sctp_rcv_init_lookup(struct sk_buff *skb,
static struct sctp_association *__sctp_rcv_init_lookup(struct sk_buff *skb,
const union sctp_addr *laddr, struct sctp_transport **transportp)
{
sctp_association_t *asoc;
struct sctp_association *asoc;
union sctp_addr addr;
union sctp_addr *paddr = &addr;
struct sctphdr *sh = (struct sctphdr *) skb->h.raw;
......@@ -815,12 +814,12 @@ static sctp_association_t *__sctp_rcv_init_lookup(struct sk_buff *skb,
}
/* Lookup an association for an inbound skb. */
sctp_association_t *__sctp_rcv_lookup(struct sk_buff *skb,
struct sctp_association *__sctp_rcv_lookup(struct sk_buff *skb,
const union sctp_addr *paddr,
const union sctp_addr *laddr,
struct sctp_transport **transportp)
{
sctp_association_t *asoc;
struct sctp_association *asoc;
asoc = __sctp_lookup_association(laddr, paddr, transportp);
......
net/sctp/inqueue.c
View file @ ce1de957
......@@ -75,17 +75,17 @@ struct sctp_inq *sctp_inq_new(void)
/* Release the memory associated with an SCTP inqueue. */
void sctp_inq_free(struct sctp_inq *queue)
{
sctp_chunk_t *chunk;
struct sctp_chunk *chunk;
/* Empty the queue. */
while ((chunk = (sctp_chunk_t *) skb_dequeue(&queue->in)) != NULL)
sctp_free_chunk(chunk);
while ((chunk = (struct sctp_chunk *) skb_dequeue(&queue->in)))
sctp_chunk_free(chunk);
/* If there is a packet which is currently being worked on,
* free it as well.
*/
if (queue->in_progress)
sctp_free_chunk(queue->in_progress);
sctp_chunk_free(queue->in_progress);
if (queue->malloced) {
/* Dump the master memory segment. */
......@@ -96,7 +96,7 @@ void sctp_inq_free(struct sctp_inq *queue)
/* Put a new packet in an SCTP inqueue.
* We assume that packet->sctp_hdr is set and in host byte order.
*/
void sctp_inq_push(struct sctp_inq *q, sctp_chunk_t *packet)
void sctp_inq_push(struct sctp_inq *q, struct sctp_chunk *packet)
{
/* Directly call the packet handling routine. */
......@@ -114,23 +114,23 @@ void sctp_inq_push(struct sctp_inq *q, sctp_chunk_t *packet)
* WARNING: If you need to put the chunk on another queue, you need to
* make a shallow copy (clone) of it.
*/
sctp_chunk_t *sctp_inq_pop(struct sctp_inq *queue)
struct sctp_chunk *sctp_inq_pop(struct sctp_inq *queue)
{
sctp_chunk_t *chunk;
struct sctp_chunk *chunk;
sctp_chunkhdr_t *ch = NULL;
/* The assumption is that we are safe to process the chunks
* at this time.
*/
if ((chunk = queue->in_progress) != NULL) {
if ((chunk = queue->in_progress)) {
/* There is a packet that we have been working on.
* Any post processing work to do before we move on?
*/
if (chunk->singleton ||
chunk->end_of_packet ||
chunk->pdiscard) {
sctp_free_chunk(chunk);
sctp_chunk_free(chunk);
chunk = queue->in_progress = NULL;
} else {
/* Nothing to do. Next chunk in the packet, please. */
......@@ -149,7 +149,7 @@ sctp_chunk_t *sctp_inq_pop(struct sctp_inq *queue)
return NULL;
chunk = queue->in_progress =
(sctp_chunk_t *) skb_dequeue(&queue->in);
(struct sctp_chunk *) skb_dequeue(&queue->in);
/* This is the first chunk in the packet. */
chunk->singleton = 1;
......
net/sctp/ipv6.c
View file @ ce1de957
......@@ -96,8 +96,8 @@ void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
struct ipv6hdr *iph = (struct ipv6hdr *)skb->data;
struct sctphdr *sh = (struct sctphdr *)(skb->data + offset);
struct sock *sk;
sctp_endpoint_t *ep;
sctp_association_t *asoc;
struct sctp_endpoint *ep;
struct sctp_association *asoc;
struct sctp_transport *transport;
struct ipv6_pinfo *np;
char *saveip, *savesctp;
......@@ -154,15 +154,13 @@ static int sctp_v6_xmit(struct sk_buff *skb, struct sctp_transport *transport,
struct sock *sk = skb->sk;
struct ipv6_pinfo *np = inet6_sk(sk);
struct flowi fl;
struct dst_entry *dst = skb->dst;
struct rt6_info *rt6 = (struct rt6_info *)dst;
fl.proto = sk->protocol;
/* Fill in the dest address from the route entry passed with the skb
* and the source address from the transport.
*/
fl.fl6_dst = &rt6->rt6i_dst.addr;
fl.fl6_dst = &transport->ipaddr.v6.sin6_addr;
fl.fl6_src = &transport->saddr.v6.sin6_addr;
fl.fl6_flowlabel = np->flow_label;
......@@ -193,7 +191,7 @@ static int sctp_v6_xmit(struct sk_buff *skb, struct sctp_transport *transport,
/* Returns the dst cache entry for the given source and destination ip
* addresses.
*/
struct dst_entry *sctp_v6_get_dst(sctp_association_t *asoc,
struct dst_entry *sctp_v6_get_dst(struct sctp_association *asoc,
union sctp_addr *daddr,
union sctp_addr *saddr)
{
......@@ -251,10 +249,10 @@ static inline int sctp_v6_addr_match_len(union sctp_addr *s1,
/* Fills in the source address(saddr) based on the destination address(daddr)
* and asoc's bind address list.
*/
void sctp_v6_get_saddr(sctp_association_t *asoc, struct dst_entry *dst,
void sctp_v6_get_saddr(struct sctp_association *asoc, struct dst_entry *dst,
union sctp_addr *daddr, union sctp_addr *saddr)
{
sctp_bind_addr_t *bp;
struct sctp_bind_addr *bp;
rwlock_t *addr_lock;
struct sockaddr_storage_list *laddr;
struct list_head *pos;
......@@ -376,11 +374,17 @@ static void sctp_v6_from_sk(union sctp_addr *addr, struct sock *sk)
}
/* Initialize sk->rcv_saddr from sctp_addr. */
static void sctp_v6_to_sk(union sctp_addr *addr, struct sock *sk)
static void sctp_v6_to_sk_saddr(union sctp_addr *addr, struct sock *sk)
{
inet6_sk(sk)->rcv_saddr = addr->v6.sin6_addr;
}
/* Initialize sk->daddr from sctp_addr. */
static void sctp_v6_to_sk_daddr(union sctp_addr *addr, struct sock *sk)
{
inet6_sk(sk)->daddr = addr->v6.sin6_addr;
}
/* Initialize a sctp_addr from a dst_entry. */
static void sctp_v6_dst_saddr(union sctp_addr *addr, struct dst_entry *dst,
unsigned short port)
......@@ -521,6 +525,7 @@ struct sock *sctp_v6_create_accept_sk(struct sock *sk,
newsk->family = PF_INET6;
newsk->protocol = IPPROTO_SCTP;
newsk->backlog_rcv = sk->prot->backlog_rcv;
newsk->shutdown = sk->shutdown;
newsctp6sk = (struct sctp6_sock *)newsk;
newsctp6sk->pinet6 = &newsctp6sk->inet6;
......@@ -530,10 +535,28 @@ struct sock *sctp_v6_create_accept_sk(struct sock *sk,
memcpy(newnp, np, sizeof(struct ipv6_pinfo));
ipv6_addr_copy(&newnp->daddr, &asoc->peer.primary_addr.v6.sin6_addr);
/* Initialize sk's sport, dport, rcv_saddr and daddr for getsockname()
* and getpeername().
*/
newinet->sport = inet->sport;
newinet->dport = asoc->peer.port;
newnp->saddr = np->saddr;
newnp->rcv_saddr = np->rcv_saddr;
newinet->dport = htons(asoc->peer.port);
newnp->daddr = asoc->peer.primary_addr.v6.sin6_addr;
/* Init the ipv4 part of the socket since we can have sockets
* using v6 API for ipv4.
*/
newinet->ttl = sysctl_ip_default_ttl;
newinet->mc_loop = 1;
newinet->mc_ttl = 1;
newinet->mc_index = 0;
newinet->mc_list = NULL;
if (ipv4_config.no_pmtu_disc)
newinet->pmtudisc = IP_PMTUDISC_DONT;
else
newinet->pmtudisc = IP_PMTUDISC_WANT;
#ifdef INET_REFCNT_DEBUG
atomic_inc(&inet6_sock_nr);
......@@ -556,6 +579,12 @@ static int sctp_v6_skb_iif(const struct sk_buff *skb)
return opt->iif;
}
/* Was this packet marked by Explicit Congestion Notification? */
static int sctp_v6_is_ce(const struct sk_buff *skb)
{
return *((__u32 *)(skb->nh.ipv6h)) & htonl(1<<20);
}
/* Initialize a PF_INET6 socket msg_name. */
static void sctp_inet6_msgname(char *msgname, int *addr_len)
{
......@@ -807,7 +836,8 @@ static struct sctp_af sctp_ipv6_specific = {
.copy_addrlist = sctp_v6_copy_addrlist,
.from_skb = sctp_v6_from_skb,
.from_sk = sctp_v6_from_sk,
.to_sk = sctp_v6_to_sk,
.to_sk_saddr = sctp_v6_to_sk_saddr,
.to_sk_daddr = sctp_v6_to_sk_daddr,
.dst_saddr = sctp_v6_dst_saddr,
.cmp_addr = sctp_v6_cmp_addr,
.scope = sctp_v6_scope,
......@@ -816,6 +846,7 @@ static struct sctp_af sctp_ipv6_specific = {
.is_any = sctp_v6_is_any,
.available = sctp_v6_available,
.skb_iif = sctp_v6_skb_iif,
.is_ce = sctp_v6_is_ce,
.net_header_len = sizeof(struct ipv6hdr),
.sockaddr_len = sizeof(struct sockaddr_in6),
.sa_family = AF_INET6,
......
net/sctp/objcnt.c
View file @ ce1de957
......@@ -55,6 +55,7 @@ SCTP_DBG_OBJCNT(bind_addr);
SCTP_DBG_OBJCNT(chunk);
SCTP_DBG_OBJCNT(addr);
SCTP_DBG_OBJCNT(ssnmap);
SCTP_DBG_OBJCNT(datamsg);
/* An array to make it easy to pretty print the debug information
* to the proc fs.
......@@ -68,6 +69,7 @@ sctp_dbg_objcnt_entry_t sctp_dbg_objcnt[] = {
SCTP_DBG_OBJCNT_ENTRY(bind_addr),
SCTP_DBG_OBJCNT_ENTRY(addr),
SCTP_DBG_OBJCNT_ENTRY(ssnmap),
SCTP_DBG_OBJCNT_ENTRY(datamsg),
};
/* Callback from procfs to read out objcount information.
......
net/sctp/output.c
View file @ ce1de957
......@@ -114,7 +114,7 @@ void sctp_packet_free(struct sctp_packet *packet)
struct sctp_chunk *chunk;
while ((chunk = (struct sctp_chunk *)__skb_dequeue(&packet->chunks)))
sctp_free_chunk(chunk);
sctp_chunk_free(chunk);
if (packet->malloced)
kfree(packet);
......@@ -219,21 +219,16 @@ sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *packet,
/* Both control chunks and data chunks with TSNs are
* non-fragmentable.
*/
int fragmentable = sctp_chunk_is_data(chunk) &&
(!chunk->has_tsn);
if (packet_empty) {
if (fragmentable) {
retval = SCTP_XMIT_MUST_FRAG;
goto finish;
} else {
/* The packet is too big but we can
* not fragment it--we have to just
* transmit and rely on IP
* fragmentation.
/* We no longer do refragmentation at all.
* Just fragment at the IP layer, if we
* actually hit this condition
*/
packet->ipfragok = 1;
goto append;
}
} else { /* !packet_empty */
retval = SCTP_XMIT_PMTU_FULL;
goto finish;
......@@ -276,8 +271,8 @@ sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *packet,
*/
int sctp_packet_transmit(struct sctp_packet *packet)
{
struct sctp_transport *transport = packet->transport;
struct sctp_association *asoc = transport->asoc;
struct sctp_transport *tp = packet->transport;
struct sctp_association *asoc = tp->asoc;
struct sctphdr *sh;
__u32 crc32;
struct sk_buff *nskb;
......@@ -311,6 +306,31 @@ int sctp_packet_transmit(struct sctp_packet *packet)
*/
skb_set_owner_w(nskb, sk);
/* Build the SCTP header. */
sh = (struct sctphdr *)skb_push(nskb, sizeof(struct sctphdr));
sh->source = htons(packet->source_port);
sh->dest = htons(packet->destination_port);
/* From 6.8 Adler-32 Checksum Calculation:
* After the packet is constructed (containing the SCTP common
* header and one or more control or DATA chunks), the
* transmitter shall:
*
* 1) Fill in the proper Verification Tag in the SCTP common
* header and initialize the checksum field to 0's.
*/
sh->vtag = htonl(packet->vtag);
sh->checksum = 0;
/* 2) Calculate the Adler-32 checksum of the whole packet,
* including the SCTP common header and all the
* chunks.
*
* Note: Adler-32 is no longer applicable, as has been replaced
* by CRC32-C as described in <draft-ietf-tsvwg-sctpcsum-02.txt>.
*/
crc32 = sctp_start_cksum((__u8 *)sh, sizeof(struct sctphdr));
/**
* 6.10 Bundling
*
......@@ -332,9 +352,11 @@ int sctp_packet_transmit(struct sctp_packet *packet)
*/
SCTP_DEBUG_PRINTK("***sctp_transmit_packet***\n");
while ((chunk = (struct sctp_chunk *)__skb_dequeue(&packet->chunks))) {
chunk->num_times_sent++;
chunk->sent_at = jiffies;
if (sctp_chunk_is_data(chunk)) {
if (!chunk->has_tsn) {
sctp_chunk_assign_ssn(chunk);
sctp_chunk_assign_tsn(chunk);
/* 6.3.1 C4) When data is in flight and when allowed
......@@ -343,19 +365,27 @@ int sctp_packet_transmit(struct sctp_packet *packet)
* SHOULD be made no more than once per round-trip
* for a given destination transport address.
*/
if ((1 == chunk->num_times_sent) &&
(!transport->rto_pending)) {
if (!tp->rto_pending) {
chunk->rtt_in_progress = 1;
transport->rto_pending = 1;
tp->rto_pending = 1;
}
} else
chunk->resent = 1;
chunk->sent_at = jiffies;
has_data = 1;
}
memcpy(skb_put(nskb, chunk->skb->len),
chunk->skb->data, chunk->skb->len);
padding = WORD_ROUND(chunk->skb->len) - chunk->skb->len;
memset(skb_put(nskb, padding), 0, padding);
SCTP_DEBUG_PRINTK("%s %p[%s] %s 0x%x, %s %d, %s %d, %s %d, "
"%s %d\n",
if (padding)
memset(skb_put(chunk->skb, padding), 0, padding);
crc32 = sctp_update_copy_cksum(skb_put(nskb, chunk->skb->len),
chunk->skb->data,
chunk->skb->len, crc32);
SCTP_DEBUG_PRINTK("%s %p[%s] %s 0x%x, %s %d, %s %d, %s %d\n",
"*** Chunk", chunk,
sctp_cname(SCTP_ST_CHUNK(
chunk->chunk_hdr->type)),
......@@ -364,7 +394,6 @@ int sctp_packet_transmit(struct sctp_packet *packet)
ntohl(chunk->subh.data_hdr->tsn) : 0,
"length", ntohs(chunk->chunk_hdr->length),
"chunk->skb->len", chunk->skb->len,
"num_times_sent", chunk->num_times_sent,
"rtt_in_progress", chunk->rtt_in_progress);
/*
......@@ -373,33 +402,10 @@ int sctp_packet_transmit(struct sctp_packet *packet)
* acknowledged or have failed.
*/
if (!sctp_chunk_is_data(chunk))
sctp_free_chunk(chunk);
sctp_chunk_free(chunk);
}
/* Build the SCTP header. */
sh = (struct sctphdr *)skb_push(nskb, sizeof(struct sctphdr));
sh->source = htons(packet->source_port);
sh->dest = htons(packet->destination_port);
/* From 6.8 Adler-32 Checksum Calculation:
* After the packet is constructed (containing the SCTP common
* header and one or more control or DATA chunks), the
* transmitter shall:
*
* 1) Fill in the proper Verification Tag in the SCTP common
* header and initialize the checksum field to 0's.
*/
sh->vtag = htonl(packet->vtag);
sh->checksum = 0;
/* 2) Calculate the Adler-32 checksum of the whole packet,
* including the SCTP common header and all the
* chunks.
*
* Note: Adler-32 is no longer applicable, as has been replaced
* by CRC32-C as described in <draft-ietf-tsvwg-sctpcsum-02.txt>.
*/
crc32 = sctp_start_cksum((__u8 *)sh, nskb->len);
/* Perform final transformation on checksum. */
crc32 = sctp_end_cksum(crc32);
/* 3) Put the resultant value into the checksum field in the
......@@ -413,17 +419,13 @@ int sctp_packet_transmit(struct sctp_packet *packet)
* data sender to indicate that the end-points of the
* transport protocol are ECN-capable."
*
* If ECN capable && negotiated && it makes sense for
* this packet to support it (e.g. post ECN negotiation)
* then lets set the ECT bit
* Now setting the ECT bit all the time, as it should not cause
* any problems protocol-wise even if our peer ignores it.
*
* FIXME: Need to do something else for IPv6
* Note: The works for IPv6 layer checks this bit too later
* in transmission. See IP6_ECN_flow_xmit().
*/
if (packet->ecn_capable) {
INET_ECN_xmit(nskb->sk);
} else {
INET_ECN_dontxmit(nskb->sk);
}
/* Set up the IP options. */
/* BUG: not implemented
......@@ -431,22 +433,21 @@ int sctp_packet_transmit(struct sctp_packet *packet)
*/
/* Dump that on IP! */
if (asoc && asoc->peer.last_sent_to != transport) {
if (asoc && asoc->peer.last_sent_to != tp) {
/* Considering the multiple CPU scenario, this is a
* "correcter" place for last_sent_to. --xguo
*/
asoc->peer.last_sent_to = transport;
asoc->peer.last_sent_to = tp;
}
if (has_data) {
struct timer_list *timer;
unsigned long timeout;
transport->last_time_used = jiffies;
tp->last_time_used = jiffies;
/* Restart the AUTOCLOSE timer when sending data. */
if ((SCTP_STATE_ESTABLISHED == asoc->state) &&
(asoc->autoclose)) {
if (sctp_state(asoc, ESTABLISHED) && asoc->autoclose) {
timer = &asoc->timers[SCTP_EVENT_TIMEOUT_AUTOCLOSE];
timeout = asoc->timeouts[SCTP_EVENT_TIMEOUT_AUTOCLOSE];
......@@ -455,21 +456,21 @@ int sctp_packet_transmit(struct sctp_packet *packet)
}
}
dst = transport->dst;
dst = tp->dst;
/* The 'obsolete' field of dst is set to 2 when a dst is freed. */
if (!dst || (dst->obsolete > 1)) {
dst_release(dst);
sctp_transport_route(transport, NULL, sctp_sk(sk));
sctp_transport_route(tp, NULL, sctp_sk(sk));
sctp_assoc_sync_pmtu(asoc);
}
nskb->dst = dst_clone(transport->dst);
nskb->dst = dst_clone(tp->dst);
if (!nskb->dst)
goto no_route;
SCTP_DEBUG_PRINTK("***sctp_transmit_packet*** skb length %d\n",
nskb->len);
(*transport->af_specific->sctp_xmit)(nskb, transport, packet->ipfragok);
(*tp->af_specific->sctp_xmit)(nskb, tp, packet->ipfragok);
out:
packet->size = SCTP_IP_OVERHEAD;
return err;
......@@ -597,7 +598,7 @@ static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
* unacknowledged.
*/
if (!sp->nodelay && SCTP_IP_OVERHEAD == packet->size &&
q->outstanding_bytes && SCTP_STATE_ESTABLISHED == asoc->state) {
q->outstanding_bytes && sctp_state(asoc, ESTABLISHED)) {
unsigned len = datasize + q->out_qlen;
/* Check whether this chunk and all the rest of pending
......@@ -623,6 +624,8 @@ static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
rwnd = 0;
asoc->peer.rwnd = rwnd;
/* Has been accepted for transmission. */
chunk->msg->can_expire = 0;
finish:
return retval;
......
net/sctp/outqueue.c
View file @ ce1de957
This diff is collapsed.
net/sctp/primitive.c
View file @ ce1de957
......@@ -55,12 +55,12 @@
#define DECLARE_PRIMITIVE(name) \
/* This is called in the code as sctp_primitive_ ## name. */ \
int sctp_primitive_ ## name(sctp_association_t *asoc, \
int sctp_primitive_ ## name(struct sctp_association *asoc, \
void *arg) { \
int error = 0; \
sctp_event_t event_type; sctp_subtype_t subtype; \
sctp_state_t state; \
sctp_endpoint_t *ep; \
struct sctp_endpoint *ep; \
\
event_type = SCTP_EVENT_T_PRIMITIVE; \
subtype = SCTP_ST_PRIMITIVE(SCTP_PRIMITIVE_ ## name); \
......
net/sctp/protocol.c
View file @ ce1de957
......@@ -56,6 +56,7 @@
#include <net/sctp/sctp.h>
#include <net/addrconf.h>
#include <net/inet_common.h>
#include <net/inet_ecn.h>
/* Global data structures. */
struct sctp_protocol sctp_proto;
......@@ -203,7 +204,7 @@ static void sctp_free_local_addr_list(struct sctp_protocol *proto)
/* Copy the local addresses which are valid for 'scope' into 'bp'. */
int sctp_copy_local_addr_list(struct sctp_protocol *proto,
struct sctp_bind_addr *bp, sctp_scope_t scope,
int priority, int copy_flags)
int gfp, int copy_flags)
{
struct sockaddr_storage_list *addr;
int error = 0;
......@@ -224,7 +225,7 @@ int sctp_copy_local_addr_list(struct sctp_protocol *proto,
(copy_flags & SCTP_ADDR6_ALLOWED) &&
(copy_flags & SCTP_ADDR6_PEERSUPP)))) {
error = sctp_add_bind_addr(bp, &addr->a,
priority);
GFP_ATOMIC);
if (error)
goto end_copy;
}
......@@ -267,11 +268,16 @@ static void sctp_v4_from_sk(union sctp_addr *addr, struct sock *sk)
}
/* Initialize sk->rcv_saddr from sctp_addr. */
static void sctp_v4_to_sk(union sctp_addr *addr, struct sock *sk)
static void sctp_v4_to_sk_saddr(union sctp_addr *addr, struct sock *sk)
{
inet_sk(sk)->rcv_saddr = addr->v4.sin_addr.s_addr;
}
/* Initialize sk->daddr from sctp_addr. */
static void sctp_v4_to_sk_daddr(union sctp_addr *addr, struct sock *sk)
{
inet_sk(sk)->daddr = addr->v4.sin_addr.s_addr;
}
/* Initialize a sctp_addr from a dst_entry. */
static void sctp_v4_dst_saddr(union sctp_addr *saddr, struct dst_entry *dst,
......@@ -388,7 +394,7 @@ struct dst_entry *sctp_v4_get_dst(struct sctp_association *asoc,
{
struct rtable *rt;
struct flowi fl;
sctp_bind_addr_t *bp;
struct sctp_bind_addr *bp;
rwlock_t *addr_lock;
struct sockaddr_storage_list *laddr;
struct list_head *pos;
......@@ -471,20 +477,32 @@ struct dst_entry *sctp_v4_get_dst(struct sctp_association *asoc,
/* For v4, the source address is cached in the route entry(dst). So no need
* to cache it separately and hence this is an empty routine.
*/
void sctp_v4_get_saddr(sctp_association_t *asoc,
void sctp_v4_get_saddr(struct sctp_association *asoc,
struct dst_entry *dst,
union sctp_addr *daddr,
union sctp_addr *saddr)
{
struct rtable *rt = (struct rtable *)dst;
if (rt) {
saddr->v4.sin_family = AF_INET;
saddr->v4.sin_port = asoc->base.bind_addr.port;
saddr->v4.sin_addr.s_addr = rt->rt_src;
}
}
/* What interface did this skb arrive on? */
int sctp_v4_skb_iif(const struct sk_buff *skb)
static int sctp_v4_skb_iif(const struct sk_buff *skb)
{
return ((struct rtable *)skb->dst)->rt_iif;
}
/* Was this packet marked by Explicit Congestion Notification? */
static int sctp_v4_is_ce(const struct sk_buff *skb)
{
return INET_ECN_is_ce(skb->nh.iph->tos);
}
/* 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)
......@@ -506,6 +524,7 @@ struct sock *sctp_v4_create_accept_sk(struct sock *sk,
newsk->prot = sk->prot;
newsk->no_check = sk->no_check;
newsk->reuse = sk->reuse;
newsk->shutdown = sk->shutdown;
newsk->destruct = inet_sock_destruct;
newsk->zapped = 0;
......@@ -514,10 +533,14 @@ struct sock *sctp_v4_create_accept_sk(struct sock *sk,
newsk->backlog_rcv = sk->prot->backlog_rcv;
newinet = inet_sk(newsk);
/* Initialize sk's sport, dport, rcv_saddr and daddr for
* getsockname() and getpeername()
*/
newinet->sport = inet->sport;
newinet->saddr = inet->saddr;
newinet->rcv_saddr = inet->saddr;
newinet->dport = asoc->peer.port;
newinet->rcv_saddr = inet->rcv_saddr;
newinet->dport = htons(asoc->peer.port);
newinet->daddr = asoc->peer.primary_addr.v4.sin_addr.s_addr;
newinet->pmtudisc = inet->pmtudisc;
newinet->id = 0;
......@@ -805,7 +828,8 @@ struct sctp_af sctp_ipv4_specific = {
.copy_addrlist = sctp_v4_copy_addrlist,
.from_skb = sctp_v4_from_skb,
.from_sk = sctp_v4_from_sk,
.to_sk = sctp_v4_to_sk,
.to_sk_saddr = sctp_v4_to_sk_saddr,
.to_sk_daddr = sctp_v4_to_sk_daddr,
.dst_saddr = sctp_v4_dst_saddr,
.cmp_addr = sctp_v4_cmp_addr,
.addr_valid = sctp_v4_addr_valid,
......@@ -814,6 +838,7 @@ struct sctp_af sctp_ipv4_specific = {
.available = sctp_v4_available,
.scope = sctp_v4_scope,
.skb_iif = sctp_v4_skb_iif,
.is_ce = sctp_v4_is_ce,
.net_header_len = sizeof(struct iphdr),
.sockaddr_len = sizeof(struct sockaddr_in),
.sa_family = AF_INET,
......
net/sctp/sm_make_chunk.c
View file @ ce1de957
This diff is collapsed.
net/sctp/sm_sideeffect.c
View file @ ce1de957
This diff is collapsed.
net/sctp/sm_statefuns.c
View file @ ce1de957
This diff is collapsed.
net/sctp/socket.c
View file @ ce1de957
This diff is collapsed.
net/sctp/ssnmap.c
View file @ ce1de957
......@@ -53,11 +53,11 @@ static inline size_t sctp_ssnmap_size(__u16 in, __u16 out)
/* Create a new sctp_ssnmap.
* Allocate room to store at least 'len' contiguous TSNs.
*/
struct sctp_ssnmap *sctp_ssnmap_new(__u16 in, __u16 out, int priority)
struct sctp_ssnmap *sctp_ssnmap_new(__u16 in, __u16 out, int gfp)
{
struct sctp_ssnmap *retval;
retval = kmalloc(sctp_ssnmap_size(in, out), priority);
retval = kmalloc(sctp_ssnmap_size(in, out), gfp);
if (!retval)
goto fail;
......
net/sctp/transport.c
View file @ ce1de957
......@@ -54,16 +54,15 @@
/* 1st Level Abstractions. */
/* Allocate and initialize a new transport. */
struct sctp_transport *sctp_transport_new(const union sctp_addr *addr,
int priority)
struct sctp_transport *sctp_transport_new(const union sctp_addr *addr, int gfp)
{
struct sctp_transport *transport;
transport = t_new(struct sctp_transport, priority);
transport = t_new(struct sctp_transport, gfp);
if (!transport)
goto fail;
if (!sctp_transport_init(transport, addr, priority))
if (!sctp_transport_init(transport, addr, gfp))
goto fail_init;
transport->malloced = 1;
......@@ -81,7 +80,7 @@ struct sctp_transport *sctp_transport_new(const union sctp_addr *addr,
/* Initialize a new transport from provided memory. */
struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
const union sctp_addr *addr,
int priority)
int gfp)
{
struct sctp_protocol *proto = sctp_get_protocol();
......@@ -117,8 +116,6 @@ struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
peer->error_threshold = 0;
peer->error_count = 0;
peer->debug_name = "unnamedtransport";
INIT_LIST_HEAD(&peer->transmitted);
INIT_LIST_HEAD(&peer->send_ready);
INIT_LIST_HEAD(&peer->transports);
......@@ -138,6 +135,13 @@ struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
peer->dead = 0;
peer->malloced = 0;
/* Initialize the state information for SFR-CACC */
peer->cacc.changeover_active = 0;
peer->cacc.cycling_changeover = 0;
peer->cacc.next_tsn_at_change = 0;
peer->cacc.cacc_saw_newack = 0;
return peer;
}
......@@ -199,7 +203,7 @@ void sctp_transport_reset_timers(struct sctp_transport *transport)
* Register the reference count in the association.
*/
void sctp_transport_set_owner(struct sctp_transport *transport,
sctp_association_t *asoc)
struct sctp_association *asoc)
{
transport->asoc = asoc;
sctp_association_hold(asoc);
......@@ -225,7 +229,7 @@ void sctp_transport_pmtu(struct sctp_transport *transport)
void sctp_transport_route(struct sctp_transport *transport,
union sctp_addr *saddr, struct sctp_opt *opt)
{
sctp_association_t *asoc = transport->asoc;
struct sctp_association *asoc = transport->asoc;
struct sctp_af *af = transport->af_specific;
union sctp_addr *daddr = &transport->ipaddr;
struct dst_entry *dst;
......@@ -238,9 +242,15 @@ void sctp_transport_route(struct sctp_transport *transport,
af->get_saddr(asoc, dst, daddr, &transport->saddr);
transport->dst = dst;
if (dst)
if (dst) {
transport->pmtu = dst_pmtu(dst);
else
/* Initialize sk->rcv_saddr, if the transport is the
* association's active path for getsockname().
*/
if (asoc && (transport == asoc->peer.active_path))
af->to_sk_saddr(&transport->saddr, asoc->base.sk);
} else
transport->pmtu = SCTP_DEFAULT_MAXSEGMENT;
}
......
net/sctp/tsnmap.c
View file @ ce1de957
......@@ -55,13 +55,12 @@ static void sctp_tsnmap_find_gap_ack(__u8 *map, __u16 off,
/* Create a new sctp_tsnmap.
* Allocate room to store at least 'len' contiguous TSNs.
*/
struct sctp_tsnmap *sctp_tsnmap_new(__u16 len, __u32 initial_tsn, int priority)
struct sctp_tsnmap *sctp_tsnmap_new(__u16 len, __u32 initial_tsn, int gfp)
{
struct sctp_tsnmap *retval;
retval = kmalloc(sizeof(struct sctp_tsnmap) +
sctp_tsnmap_storage_size(len),
priority);
sctp_tsnmap_storage_size(len), gfp);
if (!retval)
goto fail;
......
net/sctp/ulpevent.c
View file @ ce1de957
......@@ -52,12 +52,12 @@ static void sctp_ulpevent_set_owner(struct sk_buff *skb,
const struct sctp_association *asoc);
/* Create a new sctp_ulpevent. */
struct sctp_ulpevent *sctp_ulpevent_new(int size, int msg_flags, int priority)
struct sctp_ulpevent *sctp_ulpevent_new(int size, int msg_flags, int gfp)
{
struct sctp_ulpevent *event;
struct sk_buff *skb;
skb = alloc_skb(size, priority);
skb = alloc_skb(size, gfp);
if (!skb)
goto fail;
......@@ -106,16 +106,16 @@ int sctp_ulpevent_is_notification(const struct sctp_ulpevent *event)
* zero'd out.
*/
struct sctp_ulpevent *sctp_ulpevent_make_assoc_change(
const sctp_association_t *asoc,
const struct sctp_association *asoc,
__u16 flags, __u16 state, __u16 error, __u16 outbound,
__u16 inbound, int priority)
__u16 inbound, int gfp)
{
struct sctp_ulpevent *event;
struct sctp_assoc_change *sac;
struct sk_buff *skb;
event = sctp_ulpevent_new(sizeof(struct sctp_assoc_change),
MSG_NOTIFICATION, priority);
MSG_NOTIFICATION, gfp);
if (!event)
goto fail;
skb = sctp_event2skb(event);
......@@ -207,15 +207,16 @@ struct sctp_ulpevent *sctp_ulpevent_make_assoc_change(
* an interface details event is sent.
*/
struct sctp_ulpevent *sctp_ulpevent_make_peer_addr_change(
const sctp_association_t *asoc, const struct sockaddr_storage *aaddr,
int flags, int state, int error, int priority)
const struct sctp_association *asoc,
const struct sockaddr_storage *aaddr,
int flags, int state, int error, int gfp)
{
struct sctp_ulpevent *event;
struct sctp_paddr_change *spc;
struct sk_buff *skb;
event = sctp_ulpevent_new(sizeof(struct sctp_paddr_change),
MSG_NOTIFICATION, priority);
MSG_NOTIFICATION, gfp);
if (!event)
goto fail;
......@@ -315,8 +316,8 @@ struct sctp_ulpevent *sctp_ulpevent_make_peer_addr_change(
* error formats.
*/
struct sctp_ulpevent *sctp_ulpevent_make_remote_error(
const sctp_association_t *asoc, sctp_chunk_t *chunk,
__u16 flags, int priority)
const struct sctp_association *asoc, struct sctp_chunk *chunk,
__u16 flags, int gfp)
{
struct sctp_ulpevent *event;
struct sctp_remote_error *sre;
......@@ -327,7 +328,7 @@ struct sctp_ulpevent *sctp_ulpevent_make_remote_error(
ch = (sctp_errhdr_t *)(chunk->skb->data);
cause = ch->cause;
elen = ntohs(ch->length) - sizeof(sctp_errhdr_t);
elen = WORD_ROUND(ntohs(ch->length)) - sizeof(sctp_errhdr_t);
/* Pull off the ERROR header. */
skb_pull(chunk->skb, sizeof(sctp_errhdr_t));
......@@ -335,10 +336,8 @@ struct sctp_ulpevent *sctp_ulpevent_make_remote_error(
/* Copy the skb to a new skb with room for us to prepend
* notification with.
*/
skb = skb_copy_expand(chunk->skb,
sizeof(struct sctp_remote_error), /* headroom */
0, /* tailroom */
priority);
skb = skb_copy_expand(chunk->skb, sizeof(struct sctp_remote_error),
0, gfp);
/* Pull off the rest of the cause TLV from the chunk. */
skb_pull(chunk->skb, elen);
......@@ -419,23 +418,27 @@ struct sctp_ulpevent *sctp_ulpevent_make_remote_error(
* 5.3.1.4 SCTP_SEND_FAILED
*/
struct sctp_ulpevent *sctp_ulpevent_make_send_failed(
const sctp_association_t *asoc, sctp_chunk_t *chunk,
__u16 flags, __u32 error, int priority)
const struct sctp_association *asoc, struct sctp_chunk *chunk,
__u16 flags, __u32 error, int gfp)
{
struct sctp_ulpevent *event;
struct sctp_send_failed *ssf;
struct sk_buff *skb;
/* Pull off any padding. */
int len = ntohs(chunk->chunk_hdr->length);
/* Make skb with more room so we can prepend notification. */
skb = skb_copy_expand(chunk->skb,
sizeof(struct sctp_send_failed), /* headroom */
0, /* tailroom */
priority);
gfp);
if (!skb)
goto fail;
/* Pull off the common chunk header and DATA header. */
skb_pull(skb, sizeof(sctp_data_chunk_t));
skb_pull(skb, sizeof(struct sctp_data_chunk));
len -= sizeof(struct sctp_data_chunk);
/* Embed the event fields inside the cloned skb. */
event = sctp_skb2event(skb);
......@@ -476,7 +479,8 @@ struct sctp_ulpevent *sctp_ulpevent_make_send_failed(
* This field is the total length of the notification data, including
* the notification header.
*/
ssf->ssf_length = skb->len;
ssf->ssf_length = sizeof(struct sctp_send_failed) + len;
skb_trim(skb, ssf->ssf_length);
/* Socket Extensions for SCTP
* 5.3.1.4 SCTP_SEND_FAILED
......@@ -497,6 +501,11 @@ struct sctp_ulpevent *sctp_ulpevent_make_send_failed(
*/
memcpy(&ssf->ssf_info, &chunk->sinfo, sizeof(struct sctp_sndrcvinfo));
/* Per TSVWG discussion with Randy. Allow the application to
* ressemble a fragmented message.
*/
ssf->ssf_info.sinfo_flags = chunk->chunk_hdr->flags;
/* Socket Extensions for SCTP
* 5.3.1.4 SCTP_SEND_FAILED
*
......@@ -521,15 +530,15 @@ struct sctp_ulpevent *sctp_ulpevent_make_send_failed(
* 5.3.1.5 SCTP_SHUTDOWN_EVENT
*/
struct sctp_ulpevent *sctp_ulpevent_make_shutdown_event(
const sctp_association_t *asoc,
__u16 flags, int priority)
const struct sctp_association *asoc,
__u16 flags, int gfp)
{
struct sctp_ulpevent *event;
struct sctp_shutdown_event *sse;
struct sk_buff *skb;
event = sctp_ulpevent_new(sizeof(struct sctp_assoc_change),
MSG_NOTIFICATION, priority);
MSG_NOTIFICATION, gfp);
if (!event)
goto fail;
......@@ -586,8 +595,9 @@ struct sctp_ulpevent *sctp_ulpevent_make_shutdown_event(
* Socket Extensions for SCTP
* 5.2.2 SCTP Header Information Structure (SCTP_SNDRCV)
*/
struct sctp_ulpevent *sctp_ulpevent_make_rcvmsg(sctp_association_t *asoc,
sctp_chunk_t *chunk, int priority)
struct sctp_ulpevent *sctp_ulpevent_make_rcvmsg(struct sctp_association *asoc,
struct sctp_chunk *chunk,
int gfp)
{
struct sctp_ulpevent *event;
struct sctp_sndrcvinfo *info;
......@@ -595,7 +605,7 @@ struct sctp_ulpevent *sctp_ulpevent_make_rcvmsg(sctp_association_t *asoc,
size_t padding, len;
/* Clone the original skb, sharing the data. */
skb = skb_clone(chunk->skb, priority);
skb = skb_clone(chunk->skb, gfp);
if (!skb)
goto fail;
......@@ -741,14 +751,14 @@ struct sctp_ulpevent *sctp_ulpevent_make_rcvmsg(sctp_association_t *asoc,
* various events.
*/
struct sctp_ulpevent *sctp_ulpevent_make_pdapi(
const sctp_association_t *asoc, __u32 indication, int priority)
const struct sctp_association *asoc, __u32 indication, int gfp)
{
struct sctp_ulpevent *event;
struct sctp_rcv_pdapi_event *pd;
struct sk_buff *skb;
event = sctp_ulpevent_new(sizeof(struct sctp_assoc_change),
MSG_NOTIFICATION, priority);
MSG_NOTIFICATION, gfp);
if (!event)
goto fail;
......@@ -817,7 +827,7 @@ void sctp_ulpevent_read_sndrcvinfo(const struct sctp_ulpevent *event,
/* Do accounting for bytes just read by user. */
static void sctp_rcvmsg_rfree(struct sk_buff *skb)
{
sctp_association_t *asoc;
struct sctp_association *asoc;
struct sctp_ulpevent *event;
/* Current stack structures assume that the rcv buffer is
......@@ -834,7 +844,7 @@ static void sctp_rcvmsg_rfree(struct sk_buff *skb)
/* Charge receive window for bytes received. */
static void sctp_ulpevent_set_owner_r(struct sk_buff *skb,
sctp_association_t *asoc)
struct sctp_association *asoc)
{
struct sctp_ulpevent *event;
......
net/sctp/ulpqueue.c
View file @ ce1de957
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