summaryrefslogtreecommitdiff
path: root/net/sctp
diff options
context:
space:
mode:
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/auth.c1
-rw-r--r--net/sctp/ipv6.c1
-rw-r--r--net/sctp/protocol.c1
-rw-r--r--net/sctp/sm_make_chunk.c2
-rw-r--r--net/sctp/sm_sideeffect.c29
-rw-r--r--net/sctp/sm_statefuns.c41
-rw-r--r--net/sctp/socket.c13
-rw-r--r--net/sctp/stream_interleave.c60
-rw-r--r--net/sctp/ulpevent.c19
-rw-r--r--net/sctp/ulpqueue.c53
10 files changed, 123 insertions, 97 deletions
diff --git a/net/sctp/auth.c b/net/sctp/auth.c
index 39d72e58b8e5..31569f4809f6 100644
--- a/net/sctp/auth.c
+++ b/net/sctp/auth.c
@@ -760,7 +760,6 @@ void sctp_auth_calculate_hmac(const struct sctp_association *asoc,
SHASH_DESC_ON_STACK(desc, tfm);
desc->tfm = tfm;
- desc->flags = 0;
crypto_shash_digest(desc, (u8 *)auth,
end - (unsigned char *)auth, digest);
shash_desc_zero(desc);
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 6200cd2b4b99..188c47eb206e 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -1030,6 +1030,7 @@ static const struct proto_ops inet6_seqpacket_ops = {
.getname = sctp_getname,
.poll = sctp_poll,
.ioctl = inet6_ioctl,
+ .gettstamp = sock_gettstamp,
.listen = sctp_inet_listen,
.shutdown = inet_shutdown,
.setsockopt = sock_common_setsockopt,
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 951afdeea5e9..f0631bf486b6 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -1026,6 +1026,7 @@ static const struct proto_ops inet_seqpacket_ops = {
.getname = inet_getname, /* Semantics are different. */
.poll = sctp_poll,
.ioctl = inet_ioctl,
+ .gettstamp = sock_gettstamp,
.listen = sctp_inet_listen,
.shutdown = inet_shutdown, /* Looks harmless. */
.setsockopt = sock_common_setsockopt, /* IP_SOL IP_OPTION is a problem */
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index d05c57664e36..72e74503f9fc 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -1684,7 +1684,6 @@ static struct sctp_cookie_param *sctp_pack_cookie(
/* Sign the message. */
desc->tfm = sctp_sk(ep->base.sk)->hmac;
- desc->flags = 0;
err = crypto_shash_setkey(desc->tfm, ep->secret_key,
sizeof(ep->secret_key)) ?:
@@ -1755,7 +1754,6 @@ struct sctp_association *sctp_unpack_cookie(
int err;
desc->tfm = sctp_sk(ep->base.sk)->hmac;
- desc->flags = 0;
err = crypto_shash_setkey(desc->tfm, ep->secret_key,
sizeof(ep->secret_key)) ?:
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 1d143bc3f73d..4aa03588f87b 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -1112,32 +1112,6 @@ static void sctp_cmd_send_msg(struct sctp_association *asoc,
}
-/* Sent the next ASCONF packet currently stored in the association.
- * This happens after the ASCONF_ACK was succeffully processed.
- */
-static void sctp_cmd_send_asconf(struct sctp_association *asoc)
-{
- struct net *net = sock_net(asoc->base.sk);
-
- /* Send the next asconf chunk from the addip chunk
- * queue.
- */
- if (!list_empty(&asoc->addip_chunk_list)) {
- struct list_head *entry = asoc->addip_chunk_list.next;
- struct sctp_chunk *asconf = list_entry(entry,
- struct sctp_chunk, list);
- list_del_init(entry);
-
- /* Hold the chunk until an ASCONF_ACK is received. */
- sctp_chunk_hold(asconf);
- if (sctp_primitive_ASCONF(net, asoc, asconf))
- sctp_chunk_free(asconf);
- else
- asoc->addip_last_asconf = asconf;
- }
-}
-
-
/* These three macros allow us to pull the debugging code out of the
* main flow of sctp_do_sm() to keep attention focused on the real
* functionality there.
@@ -1783,9 +1757,6 @@ static int sctp_cmd_interpreter(enum sctp_event_type event_type,
}
sctp_cmd_send_msg(asoc, cmd->obj.msg, gfp);
break;
- case SCTP_CMD_SEND_NEXT_ASCONF:
- sctp_cmd_send_asconf(asoc);
- break;
case SCTP_CMD_PURGE_ASCONF_QUEUE:
sctp_asconf_queue_teardown(asoc);
break;
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index c9ae3404b1bb..e3f4abe6134e 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -3824,6 +3824,29 @@ enum sctp_disposition sctp_sf_do_asconf(struct net *net,
return SCTP_DISPOSITION_CONSUME;
}
+static enum sctp_disposition sctp_send_next_asconf(
+ struct net *net,
+ const struct sctp_endpoint *ep,
+ struct sctp_association *asoc,
+ const union sctp_subtype type,
+ struct sctp_cmd_seq *commands)
+{
+ struct sctp_chunk *asconf;
+ struct list_head *entry;
+
+ if (list_empty(&asoc->addip_chunk_list))
+ return SCTP_DISPOSITION_CONSUME;
+
+ entry = asoc->addip_chunk_list.next;
+ asconf = list_entry(entry, struct sctp_chunk, list);
+
+ list_del_init(entry);
+ sctp_chunk_hold(asconf);
+ asoc->addip_last_asconf = asconf;
+
+ return sctp_sf_do_prm_asconf(net, ep, asoc, type, asconf, commands);
+}
+
/*
* ADDIP Section 4.3 General rules for address manipulation
* When building TLV parameters for the ASCONF Chunk that will add or
@@ -3915,14 +3938,10 @@ enum sctp_disposition sctp_sf_do_asconf_ack(struct net *net,
SCTP_TO(SCTP_EVENT_TIMEOUT_T4_RTO));
if (!sctp_process_asconf_ack((struct sctp_association *)asoc,
- asconf_ack)) {
- /* Successfully processed ASCONF_ACK. We can
- * release the next asconf if we have one.
- */
- sctp_add_cmd_sf(commands, SCTP_CMD_SEND_NEXT_ASCONF,
- SCTP_NULL());
- return SCTP_DISPOSITION_CONSUME;
- }
+ asconf_ack))
+ return sctp_send_next_asconf(net, ep,
+ (struct sctp_association *)asoc,
+ type, commands);
abort = sctp_make_abort(asoc, asconf_ack,
sizeof(struct sctp_errhdr));
@@ -6412,13 +6431,15 @@ static int sctp_eat_data(const struct sctp_association *asoc,
* in sctp_ulpevent_make_rcvmsg will drop the frame if we grow our
* memory usage too much
*/
- if (*sk->sk_prot_creator->memory_pressure) {
+ if (sk_under_memory_pressure(sk)) {
if (sctp_tsnmap_has_gap(map) &&
(sctp_tsnmap_get_ctsn(map) + 1) == tsn) {
pr_debug("%s: under pressure, reneging for tsn:%u\n",
__func__, tsn);
deliver = SCTP_CMD_RENEGE;
- }
+ } else {
+ sk_mem_reclaim(sk);
+ }
}
/*
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 9874e60c9b0d..e4e892cc5644 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1913,7 +1913,10 @@ static int sctp_sendmsg_to_asoc(struct sctp_association *asoc,
if (sctp_wspace(asoc) < (int)msg_len)
sctp_prsctp_prune(asoc, sinfo, msg_len - sctp_wspace(asoc));
- if (sctp_wspace(asoc) <= 0) {
+ if (sk_under_memory_pressure(sk))
+ sk_mem_reclaim(sk);
+
+ if (sctp_wspace(asoc) <= 0 || !sk_wmem_schedule(sk, msg_len)) {
timeo = sock_sndtimeo(sk, msg->msg_flags & MSG_DONTWAIT);
err = sctp_wait_for_sndbuf(asoc, &timeo, msg_len);
if (err)
@@ -4847,7 +4850,8 @@ static int sctp_connect(struct sock *sk, struct sockaddr *addr,
}
/* Validate addr_len before calling common connect/connectx routine. */
- af = sctp_get_af_specific(addr->sa_family);
+ af = addr_len < offsetofend(struct sockaddr, sa_family) ? NULL :
+ sctp_get_af_specific(addr->sa_family);
if (!af || addr_len < af->sockaddr_len) {
err = -EINVAL;
} else {
@@ -8930,7 +8934,10 @@ static int sctp_wait_for_sndbuf(struct sctp_association *asoc, long *timeo_p,
goto do_error;
if (signal_pending(current))
goto do_interrupted;
- if ((int)msg_len <= sctp_wspace(asoc))
+ if (sk_under_memory_pressure(sk))
+ sk_mem_reclaim(sk);
+ if ((int)msg_len <= sctp_wspace(asoc) &&
+ sk_wmem_schedule(sk, msg_len))
break;
/* Let another process have a go. Since we are going
diff --git a/net/sctp/stream_interleave.c b/net/sctp/stream_interleave.c
index 102c6fefe38c..25e0b7e5189c 100644
--- a/net/sctp/stream_interleave.c
+++ b/net/sctp/stream_interleave.c
@@ -484,14 +484,15 @@ static struct sctp_ulpevent *sctp_intl_order(struct sctp_ulpq *ulpq,
}
static int sctp_enqueue_event(struct sctp_ulpq *ulpq,
- struct sctp_ulpevent *event)
+ struct sk_buff_head *skb_list)
{
- struct sk_buff *skb = sctp_event2skb(event);
struct sock *sk = ulpq->asoc->base.sk;
struct sctp_sock *sp = sctp_sk(sk);
- struct sk_buff_head *skb_list;
+ struct sctp_ulpevent *event;
+ struct sk_buff *skb;
- skb_list = (struct sk_buff_head *)skb->prev;
+ skb = __skb_peek(skb_list);
+ event = sctp_skb2event(skb);
if (sk->sk_shutdown & RCV_SHUTDOWN &&
(sk->sk_shutdown & SEND_SHUTDOWN ||
@@ -858,19 +859,24 @@ static int sctp_ulpevent_idata(struct sctp_ulpq *ulpq,
if (!(event->msg_flags & SCTP_DATA_UNORDERED)) {
event = sctp_intl_reasm(ulpq, event);
- if (event && event->msg_flags & MSG_EOR) {
+ if (event) {
skb_queue_head_init(&temp);
__skb_queue_tail(&temp, sctp_event2skb(event));
- event = sctp_intl_order(ulpq, event);
+ if (event->msg_flags & MSG_EOR)
+ event = sctp_intl_order(ulpq, event);
}
} else {
event = sctp_intl_reasm_uo(ulpq, event);
+ if (event) {
+ skb_queue_head_init(&temp);
+ __skb_queue_tail(&temp, sctp_event2skb(event));
+ }
}
if (event) {
event_eor = (event->msg_flags & MSG_EOR) ? 1 : 0;
- sctp_enqueue_event(ulpq, event);
+ sctp_enqueue_event(ulpq, &temp);
}
return event_eor;
@@ -944,20 +950,27 @@ out:
static void sctp_intl_start_pd(struct sctp_ulpq *ulpq, gfp_t gfp)
{
struct sctp_ulpevent *event;
+ struct sk_buff_head temp;
if (!skb_queue_empty(&ulpq->reasm)) {
do {
event = sctp_intl_retrieve_first(ulpq);
- if (event)
- sctp_enqueue_event(ulpq, event);
+ if (event) {
+ skb_queue_head_init(&temp);
+ __skb_queue_tail(&temp, sctp_event2skb(event));
+ sctp_enqueue_event(ulpq, &temp);
+ }
} while (event);
}
if (!skb_queue_empty(&ulpq->reasm_uo)) {
do {
event = sctp_intl_retrieve_first_uo(ulpq);
- if (event)
- sctp_enqueue_event(ulpq, event);
+ if (event) {
+ skb_queue_head_init(&temp);
+ __skb_queue_tail(&temp, sctp_event2skb(event));
+ sctp_enqueue_event(ulpq, &temp);
+ }
} while (event);
}
}
@@ -1059,7 +1072,7 @@ static void sctp_intl_reap_ordered(struct sctp_ulpq *ulpq, __u16 sid)
if (event) {
sctp_intl_retrieve_ordered(ulpq, event);
- sctp_enqueue_event(ulpq, event);
+ sctp_enqueue_event(ulpq, &temp);
}
}
@@ -1298,6 +1311,15 @@ static void sctp_handle_iftsn(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk)
ntohl(skip->mid), skip->flags);
}
+static int do_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
+{
+ struct sk_buff_head temp;
+
+ skb_queue_head_init(&temp);
+ __skb_queue_tail(&temp, sctp_event2skb(event));
+ return sctp_ulpq_tail_event(ulpq, &temp);
+}
+
static struct sctp_stream_interleave sctp_stream_interleave_0 = {
.data_chunk_len = sizeof(struct sctp_data_chunk),
.ftsn_chunk_len = sizeof(struct sctp_fwdtsn_chunk),
@@ -1306,7 +1328,7 @@ static struct sctp_stream_interleave sctp_stream_interleave_0 = {
.assign_number = sctp_chunk_assign_ssn,
.validate_data = sctp_validate_data,
.ulpevent_data = sctp_ulpq_tail_data,
- .enqueue_event = sctp_ulpq_tail_event,
+ .enqueue_event = do_ulpq_tail_event,
.renege_events = sctp_ulpq_renege,
.start_pd = sctp_ulpq_partial_delivery,
.abort_pd = sctp_ulpq_abort_pd,
@@ -1317,6 +1339,16 @@ static struct sctp_stream_interleave sctp_stream_interleave_0 = {
.handle_ftsn = sctp_handle_fwdtsn,
};
+static int do_sctp_enqueue_event(struct sctp_ulpq *ulpq,
+ struct sctp_ulpevent *event)
+{
+ struct sk_buff_head temp;
+
+ skb_queue_head_init(&temp);
+ __skb_queue_tail(&temp, sctp_event2skb(event));
+ return sctp_enqueue_event(ulpq, &temp);
+}
+
static struct sctp_stream_interleave sctp_stream_interleave_1 = {
.data_chunk_len = sizeof(struct sctp_idata_chunk),
.ftsn_chunk_len = sizeof(struct sctp_ifwdtsn_chunk),
@@ -1325,7 +1357,7 @@ static struct sctp_stream_interleave sctp_stream_interleave_1 = {
.assign_number = sctp_chunk_assign_mid,
.validate_data = sctp_validate_idata,
.ulpevent_data = sctp_ulpevent_idata,
- .enqueue_event = sctp_enqueue_event,
+ .enqueue_event = do_sctp_enqueue_event,
.renege_events = sctp_renege_events,
.start_pd = sctp_intl_start_pd,
.abort_pd = sctp_intl_abort_pd,
diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index 8cb7d9858270..c2a7478587ab 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -634,8 +634,9 @@ struct sctp_ulpevent *sctp_ulpevent_make_rcvmsg(struct sctp_association *asoc,
gfp_t gfp)
{
struct sctp_ulpevent *event = NULL;
- struct sk_buff *skb;
- size_t padding, len;
+ struct sk_buff *skb = chunk->skb;
+ struct sock *sk = asoc->base.sk;
+ size_t padding, datalen;
int rx_count;
/*
@@ -646,15 +647,12 @@ struct sctp_ulpevent *sctp_ulpevent_make_rcvmsg(struct sctp_association *asoc,
if (asoc->ep->rcvbuf_policy)
rx_count = atomic_read(&asoc->rmem_alloc);
else
- rx_count = atomic_read(&asoc->base.sk->sk_rmem_alloc);
+ rx_count = atomic_read(&sk->sk_rmem_alloc);
- if (rx_count >= asoc->base.sk->sk_rcvbuf) {
+ datalen = ntohs(chunk->chunk_hdr->length);
- if ((asoc->base.sk->sk_userlocks & SOCK_RCVBUF_LOCK) ||
- (!sk_rmem_schedule(asoc->base.sk, chunk->skb,
- chunk->skb->truesize)))
- goto fail;
- }
+ if (rx_count >= sk->sk_rcvbuf || !sk_rmem_schedule(sk, skb, datalen))
+ goto fail;
/* Clone the original skb, sharing the data. */
skb = skb_clone(chunk->skb, gfp);
@@ -681,8 +679,7 @@ struct sctp_ulpevent *sctp_ulpevent_make_rcvmsg(struct sctp_association *asoc,
* The sender should never pad with more than 3 bytes. The receiver
* MUST ignore the padding bytes.
*/
- len = ntohs(chunk->chunk_hdr->length);
- padding = SCTP_PAD4(len) - len;
+ padding = SCTP_PAD4(datalen) - datalen;
/* Fixup cloned skb with just this chunks data. */
skb_trim(skb, chunk->chunk_end - padding - skb->data);
diff --git a/net/sctp/ulpqueue.c b/net/sctp/ulpqueue.c
index 5dde92101743..a212fe079c07 100644
--- a/net/sctp/ulpqueue.c
+++ b/net/sctp/ulpqueue.c
@@ -116,12 +116,13 @@ int sctp_ulpq_tail_data(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk,
event = sctp_ulpq_reasm(ulpq, event);
/* Do ordering if needed. */
- if ((event) && (event->msg_flags & MSG_EOR)) {
+ if (event) {
/* Create a temporary list to collect chunks on. */
skb_queue_head_init(&temp);
__skb_queue_tail(&temp, sctp_event2skb(event));
- event = sctp_ulpq_order(ulpq, event);
+ if (event->msg_flags & MSG_EOR)
+ event = sctp_ulpq_order(ulpq, event);
}
/* Send event to the ULP. 'event' is the sctp_ulpevent for
@@ -129,7 +130,7 @@ int sctp_ulpq_tail_data(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk,
*/
if (event) {
event_eor = (event->msg_flags & MSG_EOR) ? 1 : 0;
- sctp_ulpq_tail_event(ulpq, event);
+ sctp_ulpq_tail_event(ulpq, &temp);
}
return event_eor;
@@ -193,18 +194,17 @@ static int sctp_ulpq_clear_pd(struct sctp_ulpq *ulpq)
return sctp_clear_pd(ulpq->asoc->base.sk, ulpq->asoc);
}
-/* If the SKB of 'event' is on a list, it is the first such member
- * of that list.
- */
-int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
+int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sk_buff_head *skb_list)
{
struct sock *sk = ulpq->asoc->base.sk;
struct sctp_sock *sp = sctp_sk(sk);
- struct sk_buff_head *queue, *skb_list;
- struct sk_buff *skb = sctp_event2skb(event);
+ struct sctp_ulpevent *event;
+ struct sk_buff_head *queue;
+ struct sk_buff *skb;
int clear_pd = 0;
- skb_list = (struct sk_buff_head *) skb->prev;
+ skb = __skb_peek(skb_list);
+ event = sctp_skb2event(skb);
/* If the socket is just going to throw this away, do not
* even try to deliver it.
@@ -257,13 +257,7 @@ int sctp_ulpq_tail_event(struct sctp_ulpq *ulpq, struct sctp_ulpevent *event)
}
}
- /* If we are harvesting multiple skbs they will be
- * collected on a list.
- */
- if (skb_list)
- skb_queue_splice_tail_init(skb_list, queue);
- else
- __skb_queue_tail(queue, skb);
+ skb_queue_splice_tail_init(skb_list, queue);
/* Did we just complete partial delivery and need to get
* rolling again? Move pending data to the receive
@@ -738,25 +732,25 @@ void sctp_ulpq_reasm_flushtsn(struct sctp_ulpq *ulpq, __u32 fwd_tsn)
static void sctp_ulpq_reasm_drain(struct sctp_ulpq *ulpq)
{
struct sctp_ulpevent *event = NULL;
- struct sk_buff_head temp;
if (skb_queue_empty(&ulpq->reasm))
return;
while ((event = sctp_ulpq_retrieve_reassembled(ulpq)) != NULL) {
- /* Do ordering if needed. */
- if ((event) && (event->msg_flags & MSG_EOR)) {
- skb_queue_head_init(&temp);
- __skb_queue_tail(&temp, sctp_event2skb(event));
+ struct sk_buff_head temp;
+
+ skb_queue_head_init(&temp);
+ __skb_queue_tail(&temp, sctp_event2skb(event));
+ /* Do ordering if needed. */
+ if (event->msg_flags & MSG_EOR)
event = sctp_ulpq_order(ulpq, event);
- }
/* Send event to the ULP. 'event' is the
* sctp_ulpevent for very first SKB on the temp' list.
*/
if (event)
- sctp_ulpq_tail_event(ulpq, event);
+ sctp_ulpq_tail_event(ulpq, &temp);
}
}
@@ -956,7 +950,7 @@ static void sctp_ulpq_reap_ordered(struct sctp_ulpq *ulpq, __u16 sid)
if (event) {
/* see if we have more ordered that we can deliver */
sctp_ulpq_retrieve_ordered(ulpq, event);
- sctp_ulpq_tail_event(ulpq, event);
+ sctp_ulpq_tail_event(ulpq, &temp);
}
}
@@ -1082,7 +1076,11 @@ void sctp_ulpq_partial_delivery(struct sctp_ulpq *ulpq,
event = sctp_ulpq_retrieve_first(ulpq);
/* Send event to the ULP. */
if (event) {
- sctp_ulpq_tail_event(ulpq, event);
+ struct sk_buff_head temp;
+
+ skb_queue_head_init(&temp);
+ __skb_queue_tail(&temp, sctp_event2skb(event));
+ sctp_ulpq_tail_event(ulpq, &temp);
sctp_ulpq_set_pd(ulpq);
return;
}
@@ -1106,7 +1104,8 @@ void sctp_ulpq_renege(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk,
freed += sctp_ulpq_renege_frags(ulpq, needed - freed);
}
/* If able to free enough room, accept this chunk. */
- if (freed >= needed) {
+ if (sk_rmem_schedule(asoc->base.sk, chunk->skb, needed) &&
+ freed >= needed) {
int retval = sctp_ulpq_tail_data(ulpq, chunk, gfp);
/*
* Enter partial delivery if chunk has not been
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 08:54:58 +0000