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Diffstat (limited to 'net/sctp/stream.c')
-rw-r--r--net/sctp/stream.c68
1 files changed, 33 insertions, 35 deletions
diff --git a/net/sctp/stream.c b/net/sctp/stream.c
index dda53a293986..af6b49850344 100644
--- a/net/sctp/stream.c
+++ b/net/sctp/stream.c
@@ -37,30 +37,23 @@
int sctp_stream_new(struct sctp_association *asoc, gfp_t gfp)
{
- struct sctp_stream *stream;
+ struct sctp_stream *stream = &asoc->stream;
int i;
- stream = kzalloc(sizeof(*stream), gfp);
- if (!stream)
- return -ENOMEM;
-
stream->outcnt = asoc->c.sinit_num_ostreams;
stream->out = kcalloc(stream->outcnt, sizeof(*stream->out), gfp);
- if (!stream->out) {
- kfree(stream);
+ if (!stream->out)
return -ENOMEM;
- }
+
for (i = 0; i < stream->outcnt; i++)
stream->out[i].state = SCTP_STREAM_OPEN;
- asoc->stream = stream;
-
return 0;
}
int sctp_stream_init(struct sctp_association *asoc, gfp_t gfp)
{
- struct sctp_stream *stream = asoc->stream;
+ struct sctp_stream *stream = &asoc->stream;
int i;
/* Initial stream->out size may be very big, so free it and alloc
@@ -70,7 +63,7 @@ int sctp_stream_init(struct sctp_association *asoc, gfp_t gfp)
stream->outcnt = asoc->c.sinit_num_ostreams;
stream->out = kcalloc(stream->outcnt, sizeof(*stream->out), gfp);
if (!stream->out)
- goto nomem;
+ return -ENOMEM;
for (i = 0; i < stream->outcnt; i++)
stream->out[i].state = SCTP_STREAM_OPEN;
@@ -79,26 +72,17 @@ int sctp_stream_init(struct sctp_association *asoc, gfp_t gfp)
stream->in = kcalloc(stream->incnt, sizeof(*stream->in), gfp);
if (!stream->in) {
kfree(stream->out);
- goto nomem;
+ stream->out = NULL;
+ return -ENOMEM;
}
return 0;
-
-nomem:
- asoc->stream = NULL;
- kfree(stream);
-
- return -ENOMEM;
}
void sctp_stream_free(struct sctp_stream *stream)
{
- if (unlikely(!stream))
- return;
-
kfree(stream->out);
kfree(stream->in);
- kfree(stream);
}
void sctp_stream_clear(struct sctp_stream *stream)
@@ -112,6 +96,19 @@ void sctp_stream_clear(struct sctp_stream *stream)
stream->in[i].ssn = 0;
}
+void sctp_stream_update(struct sctp_stream *stream, struct sctp_stream *new)
+{
+ sctp_stream_free(stream);
+
+ stream->out = new->out;
+ stream->in = new->in;
+ stream->outcnt = new->outcnt;
+ stream->incnt = new->incnt;
+
+ new->out = NULL;
+ new->in = NULL;
+}
+
static int sctp_send_reconf(struct sctp_association *asoc,
struct sctp_chunk *chunk)
{
@@ -128,7 +125,7 @@ static int sctp_send_reconf(struct sctp_association *asoc,
int sctp_send_reset_streams(struct sctp_association *asoc,
struct sctp_reset_streams *params)
{
- struct sctp_stream *stream = asoc->stream;
+ struct sctp_stream *stream = &asoc->stream;
__u16 i, str_nums, *str_list;
struct sctp_chunk *chunk;
int retval = -EINVAL;
@@ -214,6 +211,7 @@ out:
int sctp_send_reset_assoc(struct sctp_association *asoc)
{
+ struct sctp_stream *stream = &asoc->stream;
struct sctp_chunk *chunk = NULL;
int retval;
__u16 i;
@@ -230,8 +228,8 @@ int sctp_send_reset_assoc(struct sctp_association *asoc)
return -ENOMEM;
/* Block further xmit of data until this request is completed */
- for (i = 0; i < asoc->stream->outcnt; i++)
- asoc->stream->out[i].state = SCTP_STREAM_CLOSED;
+ for (i = 0; i < stream->outcnt; i++)
+ stream->out[i].state = SCTP_STREAM_CLOSED;
asoc->strreset_chunk = chunk;
sctp_chunk_hold(asoc->strreset_chunk);
@@ -241,8 +239,8 @@ int sctp_send_reset_assoc(struct sctp_association *asoc)
sctp_chunk_put(asoc->strreset_chunk);
asoc->strreset_chunk = NULL;
- for (i = 0; i < asoc->stream->outcnt; i++)
- asoc->stream->out[i].state = SCTP_STREAM_OPEN;
+ for (i = 0; i < stream->outcnt; i++)
+ stream->out[i].state = SCTP_STREAM_OPEN;
return retval;
}
@@ -255,7 +253,7 @@ int sctp_send_reset_assoc(struct sctp_association *asoc)
int sctp_send_add_streams(struct sctp_association *asoc,
struct sctp_add_streams *params)
{
- struct sctp_stream *stream = asoc->stream;
+ struct sctp_stream *stream = &asoc->stream;
struct sctp_chunk *chunk = NULL;
int retval = -ENOMEM;
__u32 outcnt, incnt;
@@ -357,7 +355,7 @@ struct sctp_chunk *sctp_process_strreset_outreq(
struct sctp_ulpevent **evp)
{
struct sctp_strreset_outreq *outreq = param.v;
- struct sctp_stream *stream = asoc->stream;
+ struct sctp_stream *stream = &asoc->stream;
__u16 i, nums, flags = 0, *str_p = NULL;
__u32 result = SCTP_STRRESET_DENIED;
__u32 request_seq;
@@ -449,7 +447,7 @@ struct sctp_chunk *sctp_process_strreset_inreq(
struct sctp_ulpevent **evp)
{
struct sctp_strreset_inreq *inreq = param.v;
- struct sctp_stream *stream = asoc->stream;
+ struct sctp_stream *stream = &asoc->stream;
__u32 result = SCTP_STRRESET_DENIED;
struct sctp_chunk *chunk = NULL;
__u16 i, nums, *str_p;
@@ -523,7 +521,7 @@ struct sctp_chunk *sctp_process_strreset_tsnreq(
{
__u32 init_tsn = 0, next_tsn = 0, max_tsn_seen;
struct sctp_strreset_tsnreq *tsnreq = param.v;
- struct sctp_stream *stream = asoc->stream;
+ struct sctp_stream *stream = &asoc->stream;
__u32 result = SCTP_STRRESET_DENIED;
__u32 request_seq;
__u16 i;
@@ -612,7 +610,7 @@ struct sctp_chunk *sctp_process_strreset_addstrm_out(
struct sctp_ulpevent **evp)
{
struct sctp_strreset_addstrm *addstrm = param.v;
- struct sctp_stream *stream = asoc->stream;
+ struct sctp_stream *stream = &asoc->stream;
__u32 result = SCTP_STRRESET_DENIED;
struct sctp_stream_in *streamin;
__u32 request_seq, incnt;
@@ -687,7 +685,7 @@ struct sctp_chunk *sctp_process_strreset_addstrm_in(
struct sctp_ulpevent **evp)
{
struct sctp_strreset_addstrm *addstrm = param.v;
- struct sctp_stream *stream = asoc->stream;
+ struct sctp_stream *stream = &asoc->stream;
__u32 result = SCTP_STRRESET_DENIED;
struct sctp_stream_out *streamout;
struct sctp_chunk *chunk = NULL;
@@ -758,8 +756,8 @@ struct sctp_chunk *sctp_process_strreset_resp(
union sctp_params param,
struct sctp_ulpevent **evp)
{
+ struct sctp_stream *stream = &asoc->stream;
struct sctp_strreset_resp *resp = param.v;
- struct sctp_stream *stream = asoc->stream;
struct sctp_transport *t;
__u16 i, nums, flags = 0;
sctp_paramhdr_t *req;
generated by cgit (git 2.34.1) at 2024-06-03 16:24:31 +0000