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Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

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This commit is contained in:
Linus Torvalds 2005-11-11 17:00:17 -08:00
commit 508862e493
13 changed files with 109 additions and 76 deletions
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1
include/linux/sysctl.h
View File

@ -715,6 +715,7 @@ enum {
NET_SCTP_PRSCTP_ENABLE = 14,
NET_SCTP_SNDBUF_POLICY = 15,
NET_SCTP_SACK_TIMEOUT = 16,
NET_SCTP_RCVBUF_POLICY = 17,
};
/* /proc/sys/net/bridge */

7
include/net/sctp/command.h
View File

@ -120,6 +120,7 @@ typedef union {
int error;
sctp_state_t state;
sctp_event_timeout_t to;
unsigned long zero;
void *ptr;
struct sctp_chunk *chunk;
struct sctp_association *asoc;
@ -148,17 +149,17 @@ static inline sctp_arg_t SCTP_NULL(void)
}
static inline sctp_arg_t SCTP_NOFORCE(void)
{
sctp_arg_t retval; retval.i32 = 0; return retval;
sctp_arg_t retval = {.zero = 0UL}; retval.i32 = 0; return retval;
}
static inline sctp_arg_t SCTP_FORCE(void)
{
sctp_arg_t retval; retval.i32 = 1; return retval;
sctp_arg_t retval = {.zero = 0UL}; retval.i32 = 1; return retval;
}
#define SCTP_ARG_CONSTRUCTOR(name, type, elt) \
static inline sctp_arg_t \
SCTP_## name (type arg) \
{ sctp_arg_t retval; retval.elt = arg; return retval; }
{ sctp_arg_t retval = {.zero = 0UL}; retval.elt = arg; return retval; }
SCTP_ARG_CONSTRUCTOR(I32, __s32, i32)
SCTP_ARG_CONSTRUCTOR(U32, __u32, u32)

19
include/net/sctp/structs.h
View File

@ -161,6 +161,13 @@ extern struct sctp_globals {
*/
int sndbuf_policy;
/*
* Policy for preforming sctp/socket accounting
* 0 - do socket level accounting, all assocs share sk_rcvbuf
* 1 - do sctp accounting, each asoc may use sk_rcvbuf bytes
*/
int rcvbuf_policy;
/* Delayed SACK timeout 200ms default*/
int sack_timeout;
@ -218,6 +225,7 @@ extern struct sctp_globals {
#define sctp_cookie_preserve_enable (sctp_globals.cookie_preserve_enable)
#define sctp_max_retrans_association (sctp_globals.max_retrans_association)
#define sctp_sndbuf_policy (sctp_globals.sndbuf_policy)
#define sctp_rcvbuf_policy (sctp_globals.rcvbuf_policy)
#define sctp_max_retrans_path (sctp_globals.max_retrans_path)
#define sctp_max_retrans_init (sctp_globals.max_retrans_init)
#define sctp_sack_timeout (sctp_globals.sack_timeout)
@ -1222,11 +1230,11 @@ struct sctp_endpoint {
int last_key;
int key_changed_at;
/* Default timeouts. */
int timeouts[SCTP_NUM_TIMEOUT_TYPES];
/* sendbuf acct. policy. */
__u32 sndbuf_policy;
/* rcvbuf acct. policy. */
__u32 rcvbuf_policy;
};
/* Recover the outter endpoint structure. */
@ -1553,6 +1561,11 @@ struct sctp_association {
*/
int sndbuf_used;
/* This is the amount of memory that this association has allocated
* in the receive path at any given time.
*/
atomic_t rmem_alloc;
/* This is the wait queue head for send requests waiting on
* the association sndbuf space.
*/

8
net/ipv6/af_inet6.c
View File

@ -699,12 +699,14 @@ static int __init inet6_init(void)
/* Register the family here so that the init calls below will
* be able to create sockets. (?? is this dangerous ??)
*/
(void) sock_register(&inet6_family_ops);
err = sock_register(&inet6_family_ops);
if (err)
goto out_unregister_raw_proto;
/* Initialise ipv6 mibs */
err = init_ipv6_mibs();
if (err)
goto out_unregister_raw_proto;
goto out_unregister_sock;
/*
* ipngwg API draft makes clear that the correct semantics
@ -796,6 +798,8 @@ icmp_fail:
ipv6_sysctl_unregister();
#endif
cleanup_ipv6_mibs();
out_unregister_sock:
sock_unregister(PF_INET6);
out_unregister_raw_proto:
proto_unregister(&rawv6_prot);
out_unregister_udp_proto:

33
net/sctp/associola.c
View File

@ -128,9 +128,29 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a
*/
asoc->max_burst = sctp_max_burst;
/* Copy things from the endpoint. */
/* initialize association timers */
asoc->timeouts[SCTP_EVENT_TIMEOUT_NONE] = 0;
asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE] = asoc->rto_initial;
asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT] = asoc->rto_initial;
asoc->timeouts[SCTP_EVENT_TIMEOUT_T2_SHUTDOWN] = asoc->rto_initial;
asoc->timeouts[SCTP_EVENT_TIMEOUT_T3_RTX] = 0;
asoc->timeouts[SCTP_EVENT_TIMEOUT_T4_RTO] = 0;
/* sctpimpguide Section 2.12.2
* If the 'T5-shutdown-guard' timer is used, it SHOULD be set to the
* recommended value of 5 times 'RTO.Max'.
*/
asoc->timeouts[SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD]
= 5 * asoc->rto_max;
asoc->timeouts[SCTP_EVENT_TIMEOUT_HEARTBEAT] = 0;
asoc->timeouts[SCTP_EVENT_TIMEOUT_SACK] =
SCTP_DEFAULT_TIMEOUT_SACK;
asoc->timeouts[SCTP_EVENT_TIMEOUT_AUTOCLOSE] =
sp->autoclose * HZ;
/* Initilizes the timers */
for (i = SCTP_EVENT_TIMEOUT_NONE; i < SCTP_NUM_TIMEOUT_TYPES; ++i) {
asoc->timeouts[i] = ep->timeouts[i];
init_timer(&asoc->timers[i]);
asoc->timers[i].function = sctp_timer_events[i];
asoc->timers[i].data = (unsigned long) asoc;
@ -157,10 +177,10 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a
* RFC 6 - A SCTP receiver MUST be able to receive a minimum of
* 1500 bytes in one SCTP packet.
*/
if (sk->sk_rcvbuf < SCTP_DEFAULT_MINWINDOW)
if ((sk->sk_rcvbuf/2) < SCTP_DEFAULT_MINWINDOW)
asoc->rwnd = SCTP_DEFAULT_MINWINDOW;
else
asoc->rwnd = sk->sk_rcvbuf;
asoc->rwnd = sk->sk_rcvbuf/2;
asoc->a_rwnd = asoc->rwnd;
@ -172,6 +192,9 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a
/* Set the sndbuf size for transmit. */
asoc->sndbuf_used = 0;
/* Initialize the receive memory counter */
atomic_set(&asoc->rmem_alloc, 0);
init_waitqueue_head(&asoc->wait);
asoc->c.my_vtag = sctp_generate_tag(ep);
@ -380,6 +403,8 @@ static void sctp_association_destroy(struct sctp_association *asoc)
spin_unlock_bh(&sctp_assocs_id_lock);
}
BUG_TRAP(!atomic_read(&asoc->rmem_alloc));
if (asoc->base.malloced) {
kfree(asoc);
SCTP_DBG_OBJCNT_DEC(assoc);

26
net/sctp/endpointola.c
View File

@ -70,7 +70,6 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
struct sock *sk,
gfp_t gfp)
{
struct sctp_sock *sp = sctp_sk(sk);
memset(ep, 0, sizeof(struct sctp_endpoint));
/* Initialize the base structure. */
@ -100,33 +99,14 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
/* Create the lists of associations. */
INIT_LIST_HEAD(&ep->asocs);
/* Set up the base timeout information. */
ep->timeouts[SCTP_EVENT_TIMEOUT_NONE] = 0;
ep->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE] =
msecs_to_jiffies(sp->rtoinfo.srto_initial);
ep->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT] =
msecs_to_jiffies(sp->rtoinfo.srto_initial);
ep->timeouts[SCTP_EVENT_TIMEOUT_T2_SHUTDOWN] =
msecs_to_jiffies(sp->rtoinfo.srto_initial);
ep->timeouts[SCTP_EVENT_TIMEOUT_T3_RTX] = 0;
ep->timeouts[SCTP_EVENT_TIMEOUT_T4_RTO] = 0;
/* sctpimpguide-05 Section 2.12.2
* If the 'T5-shutdown-guard' timer is used, it SHOULD be set to the
* recommended value of 5 times 'RTO.Max'.
*/
ep->timeouts[SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD]
= 5 * msecs_to_jiffies(sp->rtoinfo.srto_max);
ep->timeouts[SCTP_EVENT_TIMEOUT_HEARTBEAT] = 0;
ep->timeouts[SCTP_EVENT_TIMEOUT_SACK] = sctp_sack_timeout;
ep->timeouts[SCTP_EVENT_TIMEOUT_AUTOCLOSE] = sp->autoclose * HZ;
/* Use SCTP specific send buffer space queues. */
ep->sndbuf_policy = sctp_sndbuf_policy;
sk->sk_write_space = sctp_write_space;
sock_set_flag(sk, SOCK_USE_WRITE_QUEUE);
/* Get the receive buffer policy for this endpoint */
ep->rcvbuf_policy = sctp_rcvbuf_policy;
/* Initialize the secret key used with cookie. */
get_random_bytes(&ep->secret_key[0], SCTP_SECRET_SIZE);
ep->last_key = ep->current_key = 0;

20
net/sctp/input.c
View File

@ -100,21 +100,6 @@ static inline int sctp_rcv_checksum(struct sk_buff *skb)
return 0;
}
/* The free routine for skbuffs that sctp receives */
static void sctp_rfree(struct sk_buff *skb)
{
atomic_sub(sizeof(struct sctp_chunk),&skb->sk->sk_rmem_alloc);
sock_rfree(skb);
}
/* The ownership wrapper routine to do receive buffer accounting */
static void sctp_rcv_set_owner_r(struct sk_buff *skb, struct sock *sk)
{
skb_set_owner_r(skb,sk);
skb->destructor = sctp_rfree;
atomic_add(sizeof(struct sctp_chunk),&sk->sk_rmem_alloc);
}
struct sctp_input_cb {
union {
struct inet_skb_parm h4;
@ -217,9 +202,6 @@ int sctp_rcv(struct sk_buff *skb)
rcvr = &ep->base;
}
if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf)
goto discard_release;
/*
* RFC 2960, 8.4 - Handle "Out of the blue" Packets.
* An SCTP packet is called an "out of the blue" (OOTB)
@ -256,8 +238,6 @@ int sctp_rcv(struct sk_buff *skb)
}
SCTP_INPUT_CB(skb)->chunk = chunk;
sctp_rcv_set_owner_r(skb,sk);
/* Remember what endpoint is to handle this packet. */
chunk->rcvr = rcvr;

6
net/sctp/protocol.c
View File

@ -530,6 +530,9 @@ static void sctp_v4_get_saddr(struct sctp_association *asoc,
{
struct rtable *rt = (struct rtable *)dst;
if (!asoc)
return;
if (rt) {
saddr->v4.sin_family = AF_INET;
saddr->v4.sin_port = asoc->base.bind_addr.port;
@ -1047,6 +1050,9 @@ SCTP_STATIC __init int sctp_init(void)
/* Sendbuffer growth - do per-socket accounting */
sctp_sndbuf_policy = 0;
/* Rcvbuffer growth - do per-socket accounting */
sctp_rcvbuf_policy = 0;
/* HB.interval - 30 seconds */
sctp_hb_interval = SCTP_DEFAULT_TIMEOUT_HEARTBEAT;

6
net/sctp/sm_sideeffect.c
View File

@ -385,7 +385,7 @@ sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES] = {
NULL,
sctp_generate_t4_rto_event,
sctp_generate_t5_shutdown_guard_event,
sctp_generate_heartbeat_event,
NULL,
sctp_generate_sack_event,
sctp_generate_autoclose_event,
};
@ -689,9 +689,9 @@ static void sctp_cmd_new_state(sctp_cmd_seq_t *cmds,
* increased due to timer expirations.
*/
asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT] =
asoc->ep->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT];
asoc->rto_initial;
asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE] =
asoc->ep->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE];
asoc->rto_initial;
}
if (sctp_state(asoc, ESTABLISHED) ||

22
net/sctp/sm_statefuns.c
View File

@ -5160,6 +5160,8 @@ static int sctp_eat_data(const struct sctp_association *asoc,
sctp_verb_t deliver;
int tmp;
__u32 tsn;
int account_value;
struct sock *sk = asoc->base.sk;
data_hdr = chunk->subh.data_hdr = (sctp_datahdr_t *)chunk->skb->data;
skb_pull(chunk->skb, sizeof(sctp_datahdr_t));
@ -5169,6 +5171,26 @@ static int sctp_eat_data(const struct sctp_association *asoc,
/* ASSERT: Now skb->data is really the user data. */
/*
* if we are established, and we have used up our receive
* buffer memory, drop the frame
*/
if (asoc->state == SCTP_STATE_ESTABLISHED) {
/*
* If the receive buffer policy is 1, then each
* association can allocate up to sk_rcvbuf bytes
* otherwise, all the associations in aggregate
* may allocate up to sk_rcvbuf bytes
*/
if (asoc->ep->rcvbuf_policy)
account_value = atomic_read(&asoc->rmem_alloc);
else
account_value = atomic_read(&sk->sk_rmem_alloc);
if (account_value > sk->sk_rcvbuf)
return SCTP_IERROR_IGNORE_TSN;
}
/* Process ECN based congestion.
*
* Since the chunk structure is reused for all chunks within

5
net/sctp/socket.c
View File

@ -1932,7 +1932,6 @@ static int sctp_setsockopt_autoclose(struct sock *sk, char __user *optval,
if (copy_from_user(&sp->autoclose, optval, optlen))
return -EFAULT;
sp->ep->timeouts[SCTP_EVENT_TIMEOUT_AUTOCLOSE] = sp->autoclose * HZ;
return 0;
}
@ -5115,8 +5114,10 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
sctp_skb_for_each(skb, &oldsk->sk_receive_queue, tmp) {
event = sctp_skb2event(skb);
if (event->asoc == assoc) {
sock_rfree(skb);
__skb_unlink(skb, &oldsk->sk_receive_queue);
__skb_queue_tail(&newsk->sk_receive_queue, skb);
skb_set_owner_r(skb, newsk);
}
}
@ -5144,8 +5145,10 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
sctp_skb_for_each(skb, &oldsp->pd_lobby, tmp) {
event = sctp_skb2event(skb);
if (event->asoc == assoc) {
sock_rfree(skb);
__skb_unlink(skb, &oldsp->pd_lobby);
__skb_queue_tail(queue, skb);
skb_set_owner_r(skb, newsk);
}
}

8
net/sctp/sysctl.c
View File

@ -120,6 +120,14 @@ static ctl_table sctp_table[] = {
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_SCTP_RCVBUF_POLICY,
.procname = "rcvbuf_policy",
.data = &sctp_rcvbuf_policy,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_SCTP_PATH_MAX_RETRANS,
.procname = "path_max_retrans",

24
net/sctp/ulpevent.c
View File

@ -52,19 +52,6 @@ static void sctp_ulpevent_receive_data(struct sctp_ulpevent *event,
struct sctp_association *asoc);
static void sctp_ulpevent_release_data(struct sctp_ulpevent *event);
/* Stub skb destructor. */
static void sctp_stub_rfree(struct sk_buff *skb)
{
/* WARNING: This function is just a warning not to use the
* skb destructor. If the skb is shared, we may get the destructor
* callback on some processor that does not own the sock_lock. This
* was occuring with PACKET socket applications that were monitoring
* our skbs. We can't take the sock_lock, because we can't risk
* recursing if we do really own the sock lock. Instead, do all
* of our rwnd manipulation while we own the sock_lock outright.
*/
}
/* Initialize an ULP event from an given skb. */
SCTP_STATIC void sctp_ulpevent_init(struct sctp_ulpevent *event, int msg_flags)
{
@ -111,15 +98,19 @@ static inline void sctp_ulpevent_set_owner(struct sctp_ulpevent *event,
*/
sctp_association_hold((struct sctp_association *)asoc);
skb = sctp_event2skb(event);
skb->sk = asoc->base.sk;
event->asoc = (struct sctp_association *)asoc;
skb->destructor = sctp_stub_rfree;
atomic_add(skb->truesize, &event->asoc->rmem_alloc);
skb_set_owner_r(skb, asoc->base.sk);
}
/* A simple destructor to give up the reference to the association. */
static inline void sctp_ulpevent_release_owner(struct sctp_ulpevent *event)
{
sctp_association_put(event->asoc);
struct sctp_association *asoc = event->asoc;
struct sk_buff *skb = sctp_event2skb(event);
atomic_sub(skb->truesize, &asoc->rmem_alloc);
sctp_association_put(asoc);
}
/* Create and initialize an SCTP_ASSOC_CHANGE event.
@ -922,7 +913,6 @@ done:
/* Free a ulpevent that has an owner. It includes releasing the reference
* to the owner, updating the rwnd in case of a DATA event and freeing the
* skb.
* See comments in sctp_stub_rfree().
*/
void sctp_ulpevent_free(struct sctp_ulpevent *event)
{