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-rw-r--r--net/sctp/associola.c22
-rw-r--r--net/sctp/chunk.c6
-rw-r--r--net/sctp/input.c1
-rw-r--r--net/sctp/ipv6.c1
-rw-r--r--net/sctp/output.c31
-rw-r--r--net/sctp/outqueue.c12
-rw-r--r--net/sctp/proc.c8
-rw-r--r--net/sctp/protocol.c2
-rw-r--r--net/sctp/sm_make_chunk.c3
-rw-r--r--net/sctp/socket.c163
-rw-r--r--net/sctp/stream.c1
-rw-r--r--net/sctp/transport.c12
-rw-r--r--net/sctp/ulpqueue.c2
13 files changed, 118 insertions, 146 deletions
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 297d9cf960b9..914750b819b2 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -118,9 +118,6 @@ static struct sctp_association *sctp_association_init(
asoc->flowlabel = sp->flowlabel;
asoc->dscp = sp->dscp;
- /* Initialize default path MTU. */
- asoc->pathmtu = sp->pathmtu;
-
/* Set association default SACK delay */
asoc->sackdelay = msecs_to_jiffies(sp->sackdelay);
asoc->sackfreq = sp->sackfreq;
@@ -252,6 +249,10 @@ static struct sctp_association *sctp_association_init(
0, gfp))
goto fail_init;
+ /* Initialize default path MTU. */
+ asoc->pathmtu = sp->pathmtu;
+ sctp_assoc_update_frag_point(asoc);
+
/* Assume that peer would support both address types unless we are
* told otherwise.
*/
@@ -434,7 +435,7 @@ static void sctp_association_destroy(struct sctp_association *asoc)
WARN_ON(atomic_read(&asoc->rmem_alloc));
- kfree(asoc);
+ kfree_rcu(asoc, rcu);
SCTP_DBG_OBJCNT_DEC(assoc);
}
@@ -499,8 +500,9 @@ void sctp_assoc_set_primary(struct sctp_association *asoc,
void sctp_assoc_rm_peer(struct sctp_association *asoc,
struct sctp_transport *peer)
{
- struct list_head *pos;
- struct sctp_transport *transport;
+ struct sctp_transport *transport;
+ struct list_head *pos;
+ struct sctp_chunk *ch;
pr_debug("%s: association:%p addr:%pISpc\n",
__func__, asoc, &peer->ipaddr.sa);
@@ -564,7 +566,6 @@ void sctp_assoc_rm_peer(struct sctp_association *asoc,
*/
if (!list_empty(&peer->transmitted)) {
struct sctp_transport *active = asoc->peer.active_path;
- struct sctp_chunk *ch;
/* Reset the transport of each chunk on this list */
list_for_each_entry(ch, &peer->transmitted,
@@ -586,6 +587,10 @@ void sctp_assoc_rm_peer(struct sctp_association *asoc,
sctp_transport_hold(active);
}
+ list_for_each_entry(ch, &asoc->outqueue.out_chunk_list, list)
+ if (ch->transport == peer)
+ ch->transport = NULL;
+
asoc->peer.transport_count--;
sctp_transport_free(peer);
@@ -1450,7 +1455,8 @@ void sctp_assoc_sync_pmtu(struct sctp_association *asoc)
/* Get the lowest pmtu of all the transports. */
list_for_each_entry(t, &asoc->peer.transport_addr_list, transports) {
if (t->pmtu_pending && t->dst) {
- sctp_transport_update_pmtu(t, sctp_dst_mtu(t->dst));
+ sctp_transport_update_pmtu(t,
+ atomic_read(&t->mtu_info));
t->pmtu_pending = 0;
}
if (!pmtu || (t->pathmtu < pmtu))
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index ce8087846f05..d2048de86e7c 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -191,6 +191,12 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
* the packet
*/
max_data = asoc->frag_point;
+ if (unlikely(!max_data)) {
+ max_data = sctp_min_frag_point(sctp_sk(asoc->base.sk),
+ sctp_datachk_len(&asoc->stream));
+ pr_warn_ratelimited("%s: asoc:%p frag_point is zero, forcing max_data to default minimum (%Zu)",
+ __func__, asoc, max_data);
+ }
/* If the the peer requested that we authenticate DATA chunks
* we need to account for bundling of the AUTH chunks along with
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 9bbc5f92c941..5c36a99882ed 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -395,6 +395,7 @@ void sctp_icmp_frag_needed(struct sock *sk, struct sctp_association *asoc,
return;
if (sock_owned_by_user(sk)) {
+ atomic_set(&t->mtu_info, pmtu);
asoc->pmtu_pending = 1;
t->pmtu_pending = 1;
return;
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index fc6c5e4bffa5..7f0539db5604 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -101,6 +101,7 @@ static int sctp_inet6addr_event(struct notifier_block *this, unsigned long ev,
if (addr) {
addr->a.v6.sin6_family = AF_INET6;
addr->a.v6.sin6_port = 0;
+ addr->a.v6.sin6_flowinfo = 0;
addr->a.v6.sin6_addr = ifa->addr;
addr->a.v6.sin6_scope_id = ifa->idev->dev->ifindex;
addr->valid = 1;
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 7f849b01ec8e..025f48e14a91 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -118,6 +118,15 @@ void sctp_packet_config(struct sctp_packet *packet, __u32 vtag,
sctp_transport_route(tp, NULL, sp);
if (asoc->param_flags & SPP_PMTUD_ENABLE)
sctp_assoc_sync_pmtu(asoc);
+ } else if (!sctp_transport_pmtu_check(tp)) {
+ if (asoc->param_flags & SPP_PMTUD_ENABLE)
+ sctp_assoc_sync_pmtu(asoc);
+ }
+
+ if (asoc->pmtu_pending) {
+ if (asoc->param_flags & SPP_PMTUD_ENABLE)
+ sctp_assoc_sync_pmtu(asoc);
+ asoc->pmtu_pending = 0;
}
/* If there a is a prepend chunk stick it on the list before
@@ -390,25 +399,6 @@ finish:
return retval;
}
-static void sctp_packet_release_owner(struct sk_buff *skb)
-{
- sk_free(skb->sk);
-}
-
-static void sctp_packet_set_owner_w(struct sk_buff *skb, struct sock *sk)
-{
- skb_orphan(skb);
- skb->sk = sk;
- skb->destructor = sctp_packet_release_owner;
-
- /*
- * The data chunks have already been accounted for in sctp_sendmsg(),
- * therefore only reserve a single byte to keep socket around until
- * the packet has been transmitted.
- */
- refcount_inc(&sk->sk_wmem_alloc);
-}
-
static void sctp_packet_gso_append(struct sk_buff *head, struct sk_buff *skb)
{
if (SCTP_OUTPUT_CB(head)->last == head)
@@ -420,6 +410,7 @@ static void sctp_packet_gso_append(struct sk_buff *head, struct sk_buff *skb)
head->truesize += skb->truesize;
head->data_len += skb->len;
head->len += skb->len;
+ refcount_add(skb->truesize, &head->sk->sk_wmem_alloc);
__skb_header_release(skb);
}
@@ -595,7 +586,7 @@ int sctp_packet_transmit(struct sctp_packet *packet, gfp_t gfp)
if (!head)
goto out;
skb_reserve(head, packet->overhead + MAX_HEADER);
- sctp_packet_set_owner_w(head, sk);
+ skb_set_owner_w(head, sk);
/* set sctp header */
sh = skb_push(head, sizeof(struct sctphdr));
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index d74d00b29942..c37e1c2dec9d 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -212,7 +212,7 @@ void sctp_outq_init(struct sctp_association *asoc, struct sctp_outq *q)
INIT_LIST_HEAD(&q->retransmit);
INIT_LIST_HEAD(&q->sacked);
INIT_LIST_HEAD(&q->abandoned);
- sctp_sched_set_sched(asoc, SCTP_SS_FCFS);
+ sctp_sched_set_sched(asoc, SCTP_SS_DEFAULT);
}
/* Free the outqueue structure and any related pending chunks.
@@ -385,9 +385,7 @@ static int sctp_prsctp_prune_sent(struct sctp_association *asoc,
asoc->outqueue.outstanding_bytes -= sctp_data_size(chk);
}
- msg_len -= SCTP_DATA_SNDSIZE(chk) +
- sizeof(struct sk_buff) +
- sizeof(struct sctp_chunk);
+ msg_len -= chk->skb->truesize + sizeof(struct sctp_chunk);
if (msg_len <= 0)
break;
}
@@ -421,9 +419,7 @@ static int sctp_prsctp_prune_unsent(struct sctp_association *asoc,
streamout->ext->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++;
}
- msg_len -= SCTP_DATA_SNDSIZE(chk) +
- sizeof(struct sk_buff) +
- sizeof(struct sctp_chunk);
+ msg_len -= chk->skb->truesize + sizeof(struct sctp_chunk);
sctp_chunk_free(chk);
if (msg_len <= 0)
break;
@@ -1048,7 +1044,7 @@ static void sctp_outq_flush_data(struct sctp_flush_ctx *ctx,
if (!ctx->packet || !ctx->packet->has_cookie_echo)
return;
- /* fallthru */
+ /* fall through */
case SCTP_STATE_ESTABLISHED:
case SCTP_STATE_SHUTDOWN_PENDING:
case SCTP_STATE_SHUTDOWN_RECEIVED:
diff --git a/net/sctp/proc.c b/net/sctp/proc.c
index ef5c9a82d4e8..a644292f9faf 100644
--- a/net/sctp/proc.c
+++ b/net/sctp/proc.c
@@ -215,7 +215,6 @@ static const struct seq_operations sctp_eps_ops = {
struct sctp_ht_iter {
struct seq_net_private p;
struct rhashtable_iter hti;
- int start_fail;
};
static void *sctp_transport_seq_start(struct seq_file *seq, loff_t *pos)
@@ -224,7 +223,6 @@ static void *sctp_transport_seq_start(struct seq_file *seq, loff_t *pos)
sctp_transport_walk_start(&iter->hti);
- iter->start_fail = 0;
return sctp_transport_get_idx(seq_file_net(seq), &iter->hti, *pos);
}
@@ -232,8 +230,6 @@ static void sctp_transport_seq_stop(struct seq_file *seq, void *v)
{
struct sctp_ht_iter *iter = seq->private;
- if (iter->start_fail)
- return;
sctp_transport_walk_stop(&iter->hti);
}
@@ -264,8 +260,6 @@ static int sctp_assocs_seq_show(struct seq_file *seq, void *v)
}
transport = (struct sctp_transport *)v;
- if (!sctp_transport_hold(transport))
- return 0;
assoc = transport->asoc;
epb = &assoc->base;
sk = epb->sk;
@@ -322,8 +316,6 @@ static int sctp_remaddr_seq_show(struct seq_file *seq, void *v)
}
transport = (struct sctp_transport *)v;
- if (!sctp_transport_hold(transport))
- return 0;
assoc = transport->asoc;
list_for_each_entry_rcu(tsp, &assoc->peer.transport_addr_list,
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index e948db29ab53..9b277bd36d1a 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -46,7 +46,7 @@
#include <linux/netdevice.h>
#include <linux/inetdevice.h>
#include <linux/seq_file.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
#include <linux/highmem.h>
#include <linux/swap.h>
#include <linux/slab.h>
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 4a4fd1971255..f4ac6c592e13 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -2462,6 +2462,9 @@ int sctp_process_init(struct sctp_association *asoc, struct sctp_chunk *chunk,
asoc->c.sinit_max_instreams, gfp))
goto clean_up;
+ /* Update frag_point when stream_interleave may get changed. */
+ sctp_assoc_update_frag_point(asoc);
+
if (!asoc->temp && sctp_assoc_set_id(asoc, gfp))
goto clean_up;
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index e96b15a66aba..b8cebd5a87e5 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -83,7 +83,7 @@
#include <net/sctp/stream_sched.h>
/* Forward declarations for internal helper functions. */
-static int sctp_writeable(struct sock *sk);
+static bool sctp_writeable(struct sock *sk);
static void sctp_wfree(struct sk_buff *skb);
static int sctp_wait_for_sndbuf(struct sctp_association *asoc, long *timeo_p,
size_t msg_len);
@@ -119,25 +119,10 @@ static void sctp_enter_memory_pressure(struct sock *sk)
/* Get the sndbuf space available at the time on the association. */
static inline int sctp_wspace(struct sctp_association *asoc)
{
- int amt;
+ struct sock *sk = asoc->base.sk;
- if (asoc->ep->sndbuf_policy)
- amt = asoc->sndbuf_used;
- else
- amt = sk_wmem_alloc_get(asoc->base.sk);
-
- if (amt >= asoc->base.sk->sk_sndbuf) {
- if (asoc->base.sk->sk_userlocks & SOCK_SNDBUF_LOCK)
- amt = 0;
- else {
- amt = sk_stream_wspace(asoc->base.sk);
- if (amt < 0)
- amt = 0;
- }
- } else {
- amt = asoc->base.sk->sk_sndbuf - amt;
- }
- return amt;
+ return asoc->ep->sndbuf_policy ? sk->sk_sndbuf - asoc->sndbuf_used
+ : sk_stream_wspace(sk);
}
/* Increment the used sndbuf space count of the corresponding association by
@@ -166,12 +151,9 @@ static inline void sctp_set_owner_w(struct sctp_chunk *chunk)
/* Save the chunk pointer in skb for sctp_wfree to use later. */
skb_shinfo(chunk->skb)->destructor_arg = chunk;
- asoc->sndbuf_used += SCTP_DATA_SNDSIZE(chunk) +
- sizeof(struct sk_buff) +
- sizeof(struct sctp_chunk);
-
refcount_add(sizeof(struct sctp_chunk), &sk->sk_wmem_alloc);
- sk->sk_wmem_queued += chunk->skb->truesize;
+ asoc->sndbuf_used += chunk->skb->truesize + sizeof(struct sctp_chunk);
+ sk->sk_wmem_queued += chunk->skb->truesize + sizeof(struct sctp_chunk);
sk_mem_charge(sk, chunk->skb->truesize);
}
@@ -271,11 +253,10 @@ struct sctp_association *sctp_id2assoc(struct sock *sk, sctp_assoc_t id)
spin_lock_bh(&sctp_assocs_id_lock);
asoc = (struct sctp_association *)idr_find(&sctp_assocs_id, (int)id);
+ if (asoc && (asoc->base.sk != sk || asoc->base.dead))
+ asoc = NULL;
spin_unlock_bh(&sctp_assocs_id_lock);
- if (!asoc || (asoc->base.sk != sk) || asoc->base.dead)
- return NULL;
-
return asoc;
}
@@ -1928,10 +1909,10 @@ static int sctp_sendmsg_to_asoc(struct sctp_association *asoc,
asoc->pmtu_pending = 0;
}
- if (sctp_wspace(asoc) < msg_len)
+ if (sctp_wspace(asoc) < (int)msg_len)
sctp_prsctp_prune(asoc, sinfo, msg_len - sctp_wspace(asoc));
- if (!sctp_wspace(asoc)) {
+ if (sctp_wspace(asoc) <= 0) {
timeo = sock_sndtimeo(sk, msg->msg_flags & MSG_DONTWAIT);
err = sctp_wait_for_sndbuf(asoc, &timeo, msg_len);
if (err)
@@ -1946,8 +1927,10 @@ static int sctp_sendmsg_to_asoc(struct sctp_association *asoc,
if (sp->strm_interleave) {
timeo = sock_sndtimeo(sk, 0);
err = sctp_wait_for_connect(asoc, &timeo);
- if (err)
+ if (err) {
+ err = -ESRCH;
goto err;
+ }
} else {
wait_connect = true;
}
@@ -2658,20 +2641,23 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
}
if (params->spp_flags & SPP_IPV6_FLOWLABEL) {
- if (trans && trans->ipaddr.sa.sa_family == AF_INET6) {
- trans->flowlabel = params->spp_ipv6_flowlabel &
- SCTP_FLOWLABEL_VAL_MASK;
- trans->flowlabel |= SCTP_FLOWLABEL_SET_MASK;
- } else if (asoc) {
- list_for_each_entry(trans,
- &asoc->peer.transport_addr_list,
- transports) {
- if (trans->ipaddr.sa.sa_family != AF_INET6)
- continue;
+ if (trans) {
+ if (trans->ipaddr.sa.sa_family == AF_INET6) {
trans->flowlabel = params->spp_ipv6_flowlabel &
SCTP_FLOWLABEL_VAL_MASK;
trans->flowlabel |= SCTP_FLOWLABEL_SET_MASK;
}
+ } else if (asoc) {
+ struct sctp_transport *t;
+
+ list_for_each_entry(t, &asoc->peer.transport_addr_list,
+ transports) {
+ if (t->ipaddr.sa.sa_family != AF_INET6)
+ continue;
+ t->flowlabel = params->spp_ipv6_flowlabel &
+ SCTP_FLOWLABEL_VAL_MASK;
+ t->flowlabel |= SCTP_FLOWLABEL_SET_MASK;
+ }
asoc->flowlabel = params->spp_ipv6_flowlabel &
SCTP_FLOWLABEL_VAL_MASK;
asoc->flowlabel |= SCTP_FLOWLABEL_SET_MASK;
@@ -2687,12 +2673,13 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
trans->dscp = params->spp_dscp & SCTP_DSCP_VAL_MASK;
trans->dscp |= SCTP_DSCP_SET_MASK;
} else if (asoc) {
- list_for_each_entry(trans,
- &asoc->peer.transport_addr_list,
+ struct sctp_transport *t;
+
+ list_for_each_entry(t, &asoc->peer.transport_addr_list,
transports) {
- trans->dscp = params->spp_dscp &
- SCTP_DSCP_VAL_MASK;
- trans->dscp |= SCTP_DSCP_SET_MASK;
+ t->dscp = params->spp_dscp &
+ SCTP_DSCP_VAL_MASK;
+ t->dscp |= SCTP_DSCP_SET_MASK;
}
asoc->dscp = params->spp_dscp & SCTP_DSCP_VAL_MASK;
asoc->dscp |= SCTP_DSCP_SET_MASK;
@@ -3337,8 +3324,7 @@ static int sctp_setsockopt_maxseg(struct sock *sk, char __user *optval, unsigned
__u16 datasize = asoc ? sctp_datachk_len(&asoc->stream) :
sizeof(struct sctp_data_chunk);
- min_len = sctp_mtu_payload(sp, SCTP_DEFAULT_MINSEGMENT,
- datasize);
+ min_len = sctp_min_frag_point(sp, datasize);
max_len = SCTP_MAX_CHUNK_LEN - datasize;
if (val < min_len || val > max_len)
@@ -3953,32 +3939,16 @@ static int sctp_setsockopt_pr_supported(struct sock *sk,
unsigned int optlen)
{
struct sctp_assoc_value params;
- struct sctp_association *asoc;
- int retval = -EINVAL;
if (optlen != sizeof(params))
- goto out;
-
- if (copy_from_user(&params, optval, optlen)) {
- retval = -EFAULT;
- goto out;
- }
-
- asoc = sctp_id2assoc(sk, params.assoc_id);
- if (asoc) {
- asoc->prsctp_enable = !!params.assoc_value;
- } else if (!params.assoc_id) {
- struct sctp_sock *sp = sctp_sk(sk);
+ return -EINVAL;
- sp->ep->prsctp_enable = !!params.assoc_value;
- } else {
- goto out;
- }
+ if (copy_from_user(&params, optval, optlen))
+ return -EFAULT;
- retval = 0;
+ sctp_sk(sk)->ep->prsctp_enable = !!params.assoc_value;
-out:
- return retval;
+ return 0;
}
static int sctp_setsockopt_default_prinfo(struct sock *sk,
@@ -5005,9 +4975,14 @@ struct sctp_transport *sctp_transport_get_next(struct net *net,
break;
}
+ if (!sctp_transport_hold(t))
+ continue;
+
if (net_eq(sock_net(t->asoc->base.sk), net) &&
t->asoc->peer.primary_path == t)
break;
+
+ sctp_transport_put(t);
}
return t;
@@ -5017,13 +4992,18 @@ struct sctp_transport *sctp_transport_get_idx(struct net *net,
struct rhashtable_iter *iter,
int pos)
{
- void *obj = SEQ_START_TOKEN;
+ struct sctp_transport *t;
+
+ if (!pos)
+ return SEQ_START_TOKEN;
- while (pos && (obj = sctp_transport_get_next(net, iter)) &&
- !IS_ERR(obj))
- pos--;
+ while ((t = sctp_transport_get_next(net, iter)) && !IS_ERR(t)) {
+ if (!--pos)
+ break;
+ sctp_transport_put(t);
+ }
- return obj;
+ return t;
}
int sctp_for_each_endpoint(int (*cb)(struct sctp_endpoint *, void *),
@@ -5082,8 +5062,6 @@ again:
tsp = sctp_transport_get_idx(net, &hti, *pos + 1);
for (; !IS_ERR_OR_NULL(tsp); tsp = sctp_transport_get_next(net, &hti)) {
- if (!sctp_transport_hold(tsp))
- continue;
ret = cb(tsp, p);
if (ret)
break;
@@ -7088,14 +7066,15 @@ static int sctp_getsockopt_pr_assocstatus(struct sock *sk, int len,
}
policy = params.sprstat_policy;
- if (policy & ~SCTP_PR_SCTP_MASK)
+ if (!policy || (policy & ~(SCTP_PR_SCTP_MASK | SCTP_PR_SCTP_ALL)) ||
+ ((policy & SCTP_PR_SCTP_ALL) && (policy & SCTP_PR_SCTP_MASK)))
goto out;
asoc = sctp_id2assoc(sk, params.sprstat_assoc_id);
if (!asoc)
goto out;
- if (policy == SCTP_PR_SCTP_NONE) {
+ if (policy == SCTP_PR_SCTP_ALL) {
params.sprstat_abandoned_unsent = 0;
params.sprstat_abandoned_sent = 0;
for (policy = 0; policy <= SCTP_PR_INDEX(MAX); policy++) {
@@ -7147,7 +7126,8 @@ static int sctp_getsockopt_pr_streamstatus(struct sock *sk, int len,
}
policy = params.sprstat_policy;
- if (policy & ~SCTP_PR_SCTP_MASK)
+ if (!policy || (policy & ~(SCTP_PR_SCTP_MASK | SCTP_PR_SCTP_ALL)) ||
+ ((policy & SCTP_PR_SCTP_ALL) && (policy & SCTP_PR_SCTP_MASK)))
goto out;
asoc = sctp_id2assoc(sk, params.sprstat_assoc_id);
@@ -7163,7 +7143,7 @@ static int sctp_getsockopt_pr_streamstatus(struct sock *sk, int len,
goto out;
}
- if (policy == SCTP_PR_SCTP_NONE) {
+ if (policy == SCTP_PR_SCTP_ALL) {
params.sprstat_abandoned_unsent = 0;
params.sprstat_abandoned_sent = 0;
for (policy = 0; policy <= SCTP_PR_INDEX(MAX); policy++) {
@@ -8448,17 +8428,11 @@ static void sctp_wfree(struct sk_buff *skb)
struct sctp_association *asoc = chunk->asoc;
struct sock *sk = asoc->base.sk;
- asoc->sndbuf_used -= SCTP_DATA_SNDSIZE(chunk) +
- sizeof(struct sk_buff) +
- sizeof(struct sctp_chunk);
-
- WARN_ON(refcount_sub_and_test(sizeof(struct sctp_chunk), &sk->sk_wmem_alloc));
-
- /*
- * This undoes what is done via sctp_set_owner_w and sk_mem_charge
- */
- sk->sk_wmem_queued -= skb->truesize;
sk_mem_uncharge(sk, skb->truesize);
+ sk->sk_wmem_queued -= skb->truesize + sizeof(struct sctp_chunk);
+ asoc->sndbuf_used -= skb->truesize + sizeof(struct sctp_chunk);
+ WARN_ON(refcount_sub_and_test(sizeof(struct sctp_chunk),
+ &sk->sk_wmem_alloc));
if (chunk->shkey) {
struct sctp_shared_key *shkey = chunk->shkey;
@@ -8532,7 +8506,7 @@ static int sctp_wait_for_sndbuf(struct sctp_association *asoc, long *timeo_p,
goto do_error;
if (signal_pending(current))
goto do_interrupted;
- if (msg_len <= sctp_wspace(asoc))
+ if ((int)msg_len <= sctp_wspace(asoc))
break;
/* Let another process have a go. Since we are going
@@ -8607,14 +8581,9 @@ void sctp_write_space(struct sock *sk)
* UDP-style sockets or TCP-style sockets, this code should work.
* - Daisy
*/
-static int sctp_writeable(struct sock *sk)
+static bool sctp_writeable(struct sock *sk)
{
- int amt = 0;
-
- amt = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
- if (amt < 0)
- amt = 0;
- return amt;
+ return sk->sk_sndbuf > sk->sk_wmem_queued;
}
/* Wait for an association to go into ESTABLISHED state. If timeout is 0,
diff --git a/net/sctp/stream.c b/net/sctp/stream.c
index ffb940d3b57c..3892e7630f3a 100644
--- a/net/sctp/stream.c
+++ b/net/sctp/stream.c
@@ -535,7 +535,6 @@ int sctp_send_add_streams(struct sctp_association *asoc,
goto out;
}
- stream->incnt = incnt;
stream->outcnt = outcnt;
asoc->strreset_outstanding = !!out + !!in;
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index 12cac85da994..033696e6f74f 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -260,6 +260,7 @@ void sctp_transport_pmtu(struct sctp_transport *transport, struct sock *sk)
bool sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu)
{
struct dst_entry *dst = sctp_transport_dst_check(t);
+ struct sock *sk = t->asoc->base.sk;
bool change = true;
if (unlikely(pmtu < SCTP_DEFAULT_MINSEGMENT)) {
@@ -271,12 +272,19 @@ bool sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu)
pmtu = SCTP_TRUNC4(pmtu);
if (dst) {
- dst->ops->update_pmtu(dst, t->asoc->base.sk, NULL, pmtu);
+ struct sctp_pf *pf = sctp_get_pf_specific(dst->ops->family);
+ union sctp_addr addr;
+
+ pf->af->from_sk(&addr, sk);
+ pf->to_sk_daddr(&t->ipaddr, sk);
+ dst->ops->update_pmtu(dst, sk, NULL, pmtu);
+ pf->to_sk_daddr(&addr, sk);
+
dst = sctp_transport_dst_check(t);
}
if (!dst) {
- t->af_specific->get_dst(t, &t->saddr, &t->fl, t->asoc->base.sk);
+ t->af_specific->get_dst(t, &t->saddr, &t->fl, sk);
dst = t->dst;
}
diff --git a/net/sctp/ulpqueue.c b/net/sctp/ulpqueue.c
index 0b427100b0d4..331cc734e3db 100644
--- a/net/sctp/ulpqueue.c
+++ b/net/sctp/ulpqueue.c
@@ -459,7 +459,7 @@ static struct sctp_ulpevent *sctp_ulpq_retrieve_reassembled(struct sctp_ulpq *ul
* element in the queue, then count it towards
* possible PD.
*/
- if (pos == ulpq->reasm.next) {
+ if (skb_queue_is_first(&ulpq->reasm, pos)) {
pd_first = pos;
pd_last = pos;
pd_len = pos->len;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 11:52:56 +0000