summaryrefslogtreecommitdiffstats
path: root/net/sctp
diff options
context:
space:
mode:
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/associola.c6
-rw-r--r--net/sctp/auth.c1
-rw-r--r--net/sctp/bind_addr.c1
-rw-r--r--net/sctp/chunk.c1
-rw-r--r--net/sctp/endpointola.c1
-rw-r--r--net/sctp/input.c1
-rw-r--r--net/sctp/inqueue.c1
-rw-r--r--net/sctp/ipv6.c1
-rw-r--r--net/sctp/output.c1
-rw-r--r--net/sctp/outqueue.c1
-rw-r--r--net/sctp/primitive.c1
-rw-r--r--net/sctp/protocol.c1
-rw-r--r--net/sctp/sm_make_chunk.c95
-rw-r--r--net/sctp/sm_sideeffect.c27
-rw-r--r--net/sctp/sm_statefuns.c9
-rw-r--r--net/sctp/socket.c15
-rw-r--r--net/sctp/ssnmap.c1
-rw-r--r--net/sctp/transport.c1
-rw-r--r--net/sctp/tsnmap.c1
-rw-r--r--net/sctp/ulpevent.c1
-rw-r--r--net/sctp/ulpqueue.c1
21 files changed, 136 insertions, 32 deletions
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index df5abbff63e..99c93ee98ad 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -1194,8 +1194,10 @@ void sctp_assoc_update(struct sctp_association *asoc,
/* Remove any peer addresses not present in the new association. */
list_for_each_safe(pos, temp, &asoc->peer.transport_addr_list) {
trans = list_entry(pos, struct sctp_transport, transports);
- if (!sctp_assoc_lookup_paddr(new, &trans->ipaddr))
- sctp_assoc_del_peer(asoc, &trans->ipaddr);
+ if (!sctp_assoc_lookup_paddr(new, &trans->ipaddr)) {
+ sctp_assoc_rm_peer(asoc, trans);
+ continue;
+ }
if (asoc->state >= SCTP_STATE_ESTABLISHED)
sctp_transport_reset(trans);
diff --git a/net/sctp/auth.c b/net/sctp/auth.c
index 56935bbc149..86366390038 100644
--- a/net/sctp/auth.c
+++ b/net/sctp/auth.c
@@ -34,6 +34,7 @@
* be incorporated into the next SCTP release.
*/
+#include <linux/slab.h>
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/scatterlist.h>
diff --git a/net/sctp/bind_addr.c b/net/sctp/bind_addr.c
index bef13373168..faf71d179e4 100644
--- a/net/sctp/bind_addr.c
+++ b/net/sctp/bind_addr.c
@@ -43,6 +43,7 @@
*/
#include <linux/types.h>
+#include <linux/slab.h>
#include <linux/in.h>
#include <net/sock.h>
#include <net/ipv6.h>
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index 8e4320040f0..3eab6db59a3 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -42,6 +42,7 @@
#include <linux/net.h>
#include <linux/inet.h>
#include <linux/skbuff.h>
+#include <linux/slab.h>
#include <net/sock.h>
#include <net/sctp/sctp.h>
#include <net/sctp/sm.h>
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index 905fda582b9..7ec09ba03a1 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -144,6 +144,7 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
/* Use SCTP specific send buffer space queues. */
ep->sndbuf_policy = sctp_sndbuf_policy;
+ sk->sk_data_ready = sctp_data_ready;
sk->sk_write_space = sctp_write_space;
sock_set_flag(sk, SOCK_USE_WRITE_QUEUE);
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 3d74b264ea2..2a570184e5a 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -53,6 +53,7 @@
#include <linux/socket.h>
#include <linux/ip.h>
#include <linux/time.h> /* For struct timeval */
+#include <linux/slab.h>
#include <net/ip.h>
#include <net/icmp.h>
#include <net/snmp.h>
diff --git a/net/sctp/inqueue.c b/net/sctp/inqueue.c
index bbf5dd2a97c..ccb6dc48d15 100644
--- a/net/sctp/inqueue.c
+++ b/net/sctp/inqueue.c
@@ -46,6 +46,7 @@
#include <net/sctp/sctp.h>
#include <net/sctp/sm.h>
#include <linux/interrupt.h>
+#include <linux/slab.h>
/* Initialize an SCTP inqueue. */
void sctp_inq_init(struct sctp_inq *queue)
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 1d7ac70ba39..9fb5d37c37a 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -58,6 +58,7 @@
#include <linux/netdevice.h>
#include <linux/init.h>
#include <linux/ipsec.h>
+#include <linux/slab.h>
#include <linux/ipv6.h>
#include <linux/icmpv6.h>
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 7c558936343..fad261d41ec 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -48,6 +48,7 @@
#include <linux/ip.h>
#include <linux/ipv6.h>
#include <linux/init.h>
+#include <linux/slab.h>
#include <net/inet_ecn.h>
#include <net/ip.h>
#include <net/icmp.h>
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 229690f02a1..abfc0b8dee7 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -50,6 +50,7 @@
#include <linux/list.h> /* For struct list_head */
#include <linux/socket.h>
#include <linux/ip.h>
+#include <linux/slab.h>
#include <net/sock.h> /* For skb_set_owner_w */
#include <net/sctp/sctp.h>
diff --git a/net/sctp/primitive.c b/net/sctp/primitive.c
index 8cb4f060bce..534c7eae9d1 100644
--- a/net/sctp/primitive.c
+++ b/net/sctp/primitive.c
@@ -50,6 +50,7 @@
#include <linux/socket.h>
#include <linux/ip.h>
#include <linux/time.h> /* For struct timeval */
+#include <linux/gfp.h>
#include <net/sock.h>
#include <net/sctp/sctp.h>
#include <net/sctp/sm.h>
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index e771690f6d5..a56f98e82f9 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -54,6 +54,7 @@
#include <linux/bootmem.h>
#include <linux/highmem.h>
#include <linux/swap.h>
+#include <linux/slab.h>
#include <net/net_namespace.h>
#include <net/protocol.h>
#include <net/ip.h>
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 9e732916b67..30c1767186b 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -58,6 +58,7 @@
#include <linux/inet.h>
#include <linux/scatterlist.h>
#include <linux/crypto.h>
+#include <linux/slab.h>
#include <net/sock.h>
#include <linux/skbuff.h>
@@ -107,7 +108,7 @@ static const struct sctp_paramhdr prsctp_param = {
cpu_to_be16(sizeof(struct sctp_paramhdr)),
};
-/* A helper to initialize to initialize an op error inside a
+/* A helper to initialize an op error inside a
* provided chunk, as most cause codes will be embedded inside an
* abort chunk.
*/
@@ -124,6 +125,29 @@ void sctp_init_cause(struct sctp_chunk *chunk, __be16 cause_code,
chunk->subh.err_hdr = sctp_addto_chunk(chunk, sizeof(sctp_errhdr_t), &err);
}
+/* A helper to initialize an op error inside a
+ * provided chunk, as most cause codes will be embedded inside an
+ * abort chunk. Differs from sctp_init_cause in that it won't oops
+ * if there isn't enough space in the op error chunk
+ */
+int sctp_init_cause_fixed(struct sctp_chunk *chunk, __be16 cause_code,
+ size_t paylen)
+{
+ sctp_errhdr_t err;
+ __u16 len;
+
+ /* Cause code constants are now defined in network order. */
+ err.cause = cause_code;
+ len = sizeof(sctp_errhdr_t) + paylen;
+ err.length = htons(len);
+
+ if (skb_tailroom(chunk->skb) > len)
+ return -ENOSPC;
+ chunk->subh.err_hdr = sctp_addto_chunk_fixed(chunk,
+ sizeof(sctp_errhdr_t),
+ &err);
+ return 0;
+}
/* 3.3.2 Initiation (INIT) (1)
*
* This chunk is used to initiate a SCTP association between two
@@ -207,7 +231,8 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
sp = sctp_sk(asoc->base.sk);
num_types = sp->pf->supported_addrs(sp, types);
- chunksize = sizeof(init) + addrs_len + SCTP_SAT_LEN(num_types);
+ chunksize = sizeof(init) + addrs_len;
+ chunksize += WORD_ROUND(SCTP_SAT_LEN(num_types));
chunksize += sizeof(ecap_param);
if (sctp_prsctp_enable)
@@ -237,14 +262,14 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
/* Add HMACS parameter length if any were defined */
auth_hmacs = (sctp_paramhdr_t *)asoc->c.auth_hmacs;
if (auth_hmacs->length)
- chunksize += ntohs(auth_hmacs->length);
+ chunksize += WORD_ROUND(ntohs(auth_hmacs->length));
else
auth_hmacs = NULL;
/* Add CHUNKS parameter length */
auth_chunks = (sctp_paramhdr_t *)asoc->c.auth_chunks;
if (auth_chunks->length)
- chunksize += ntohs(auth_chunks->length);
+ chunksize += WORD_ROUND(ntohs(auth_chunks->length));
else
auth_chunks = NULL;
@@ -254,7 +279,8 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
/* If we have any extensions to report, account for that */
if (num_ext)
- chunksize += sizeof(sctp_supported_ext_param_t) + num_ext;
+ chunksize += WORD_ROUND(sizeof(sctp_supported_ext_param_t) +
+ num_ext);
/* RFC 2960 3.3.2 Initiation (INIT) (1)
*
@@ -396,13 +422,13 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
auth_hmacs = (sctp_paramhdr_t *)asoc->c.auth_hmacs;
if (auth_hmacs->length)
- chunksize += ntohs(auth_hmacs->length);
+ chunksize += WORD_ROUND(ntohs(auth_hmacs->length));
else
auth_hmacs = NULL;
auth_chunks = (sctp_paramhdr_t *)asoc->c.auth_chunks;
if (auth_chunks->length)
- chunksize += ntohs(auth_chunks->length);
+ chunksize += WORD_ROUND(ntohs(auth_chunks->length));
else
auth_chunks = NULL;
@@ -411,7 +437,8 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
}
if (num_ext)
- chunksize += sizeof(sctp_supported_ext_param_t) + num_ext;
+ chunksize += WORD_ROUND(sizeof(sctp_supported_ext_param_t) +
+ num_ext);
/* Now allocate and fill out the chunk. */
retval = sctp_make_chunk(asoc, SCTP_CID_INIT_ACK, 0, chunksize);
@@ -1128,6 +1155,24 @@ nodata:
return retval;
}
+/* Create an Operation Error chunk of a fixed size,
+ * specifically, max(asoc->pathmtu, SCTP_DEFAULT_MAXSEGMENT)
+ * This is a helper function to allocate an error chunk for
+ * for those invalid parameter codes in which we may not want
+ * to report all the errors, if the incomming chunk is large
+ */
+static inline struct sctp_chunk *sctp_make_op_error_fixed(
+ const struct sctp_association *asoc,
+ const struct sctp_chunk *chunk)
+{
+ size_t size = asoc ? asoc->pathmtu : 0;
+
+ if (!size)
+ size = SCTP_DEFAULT_MAXSEGMENT;
+
+ return sctp_make_op_error_space(asoc, chunk, size);
+}
+
/* Create an Operation Error chunk. */
struct sctp_chunk *sctp_make_op_error(const struct sctp_association *asoc,
const struct sctp_chunk *chunk,
@@ -1370,6 +1415,18 @@ void *sctp_addto_chunk(struct sctp_chunk *chunk, int len, const void *data)
return target;
}
+/* Append bytes to the end of a chunk. Returns NULL if there isn't sufficient
+ * space in the chunk
+ */
+void *sctp_addto_chunk_fixed(struct sctp_chunk *chunk,
+ int len, const void *data)
+{
+ if (skb_tailroom(chunk->skb) > len)
+ return sctp_addto_chunk(chunk, len, data);
+ else
+ return NULL;
+}
+
/* Append bytes from user space to the end of a chunk. Will panic if
* chunk is not big enough.
* Returns a kernel err value.
@@ -1973,13 +2030,12 @@ static sctp_ierror_t sctp_process_unk_param(const struct sctp_association *asoc,
* returning multiple unknown parameters.
*/
if (NULL == *errp)
- *errp = sctp_make_op_error_space(asoc, chunk,
- ntohs(chunk->chunk_hdr->length));
+ *errp = sctp_make_op_error_fixed(asoc, chunk);
if (*errp) {
- sctp_init_cause(*errp, SCTP_ERROR_UNKNOWN_PARAM,
+ sctp_init_cause_fixed(*errp, SCTP_ERROR_UNKNOWN_PARAM,
WORD_ROUND(ntohs(param.p->length)));
- sctp_addto_chunk(*errp,
+ sctp_addto_chunk_fixed(*errp,
WORD_ROUND(ntohs(param.p->length)),
param.v);
} else {
@@ -3314,21 +3370,6 @@ int sctp_process_asconf_ack(struct sctp_association *asoc,
sctp_chunk_free(asconf);
asoc->addip_last_asconf = NULL;
- /* 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;
- 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(asoc, asconf))
- sctp_chunk_free(asconf);
- else
- asoc->addip_last_asconf = asconf;
- }
-
return retval;
}
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 500886bda9b..d5ae450b6f0 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -51,6 +51,7 @@
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/ip.h>
+#include <linux/gfp.h>
#include <net/sock.h>
#include <net/sctp/sctp.h>
#include <net/sctp/sm.h>
@@ -961,6 +962,29 @@ static int 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)
+{
+ /* 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(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
@@ -1616,6 +1640,9 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
}
error = sctp_cmd_send_msg(asoc, cmd->obj.msg);
break;
+ case SCTP_CMD_SEND_NEXT_ASCONF:
+ sctp_cmd_send_asconf(asoc);
+ break;
default:
printk(KERN_WARNING "Impossible command: %u, %p\n",
cmd->verb, cmd->obj.ptr);
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 47bc20d3a85..24b2cd55563 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -56,6 +56,7 @@
#include <linux/ipv6.h>
#include <linux/net.h>
#include <linux/inet.h>
+#include <linux/slab.h>
#include <net/sock.h>
#include <net/inet_ecn.h>
#include <linux/skbuff.h>
@@ -3675,8 +3676,14 @@ sctp_disposition_t sctp_sf_do_asconf_ack(const struct sctp_endpoint *ep,
SCTP_TO(SCTP_EVENT_TIMEOUT_T4_RTO));
if (!sctp_process_asconf_ack((struct sctp_association *)asoc,
- asconf_ack))
+ 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;
+ }
abort = sctp_make_abort(asoc, asconf_ack,
sizeof(sctp_errhdr_t));
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index dfc5c127efd..44a1ab03a3f 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -67,6 +67,7 @@
#include <linux/poll.h>
#include <linux/init.h>
#include <linux/crypto.h>
+#include <linux/slab.h>
#include <net/ip.h>
#include <net/icmp.h>
@@ -3718,12 +3719,12 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk)
sp->hmac = NULL;
SCTP_DBG_OBJCNT_INC(sock);
- percpu_counter_inc(&sctp_sockets_allocated);
/* Set socket backlog limit. */
sk->sk_backlog.limit = sysctl_sctp_rmem[1];
local_bh_disable();
+ percpu_counter_inc(&sctp_sockets_allocated);
sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
local_bh_enable();
@@ -3740,8 +3741,8 @@ SCTP_STATIC void sctp_destroy_sock(struct sock *sk)
/* Release our hold on the endpoint. */
ep = sctp_sk(sk)->ep;
sctp_endpoint_free(ep);
- percpu_counter_dec(&sctp_sockets_allocated);
local_bh_disable();
+ percpu_counter_dec(&sctp_sockets_allocated);
sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
local_bh_enable();
}
@@ -6188,6 +6189,16 @@ do_nonblock:
goto out;
}
+void sctp_data_ready(struct sock *sk, int len)
+{
+ read_lock_bh(&sk->sk_callback_lock);
+ if (sk_has_sleeper(sk))
+ wake_up_interruptible_sync_poll(sk->sk_sleep, POLLIN |
+ POLLRDNORM | POLLRDBAND);
+ sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN);
+ read_unlock_bh(&sk->sk_callback_lock);
+}
+
/* If socket sndbuf has changed, wake up all per association waiters. */
void sctp_write_space(struct sock *sk)
{
diff --git a/net/sctp/ssnmap.c b/net/sctp/ssnmap.c
index 737d330e5ff..442ad4ed631 100644
--- a/net/sctp/ssnmap.c
+++ b/net/sctp/ssnmap.c
@@ -37,6 +37,7 @@
*/
#include <linux/types.h>
+#include <linux/slab.h>
#include <net/sctp/sctp.h>
#include <net/sctp/sm.h>
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index b827d21dbe5..be4d63d5a5c 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -48,6 +48,7 @@
* be incorporated into the next SCTP release.
*/
+#include <linux/slab.h>
#include <linux/types.h>
#include <linux/random.h>
#include <net/sctp/sctp.h>
diff --git a/net/sctp/tsnmap.c b/net/sctp/tsnmap.c
index 9bd64565021..747d5412c46 100644
--- a/net/sctp/tsnmap.c
+++ b/net/sctp/tsnmap.c
@@ -42,6 +42,7 @@
* be incorporated into the next SCTP release.
*/
+#include <linux/slab.h>
#include <linux/types.h>
#include <linux/bitmap.h>
#include <net/sctp/sctp.h>
diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index 8b3560fd876..aa72e89c3ee 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -43,6 +43,7 @@
* be incorporated into the next SCTP release.
*/
+#include <linux/slab.h>
#include <linux/types.h>
#include <linux/skbuff.h>
#include <net/sctp/structs.h>
diff --git a/net/sctp/ulpqueue.c b/net/sctp/ulpqueue.c
index 7b23803343c..3a448536f0b 100644
--- a/net/sctp/ulpqueue.c
+++ b/net/sctp/ulpqueue.c
@@ -41,6 +41,7 @@
* be incorporated into the next SCTP release.
*/
+#include <linux/slab.h>
#include <linux/types.h>
#include <linux/skbuff.h>
#include <net/sock.h>
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-19 01:20:45 +0000