openharmony/third_party_nghttp2
1
0
Fork 0
mirror of https://gitee.com/openharmony/third_party_nghttp2 synced 2024-11-27 18:10:47 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Discard inbound HEADERS and DATA in CLOSING state. Handle stream shutdown when DATA is received with FIN bit set.

Browse Source
This commit is contained in:
Tatsuhiro Tsujikawa 2012-01-29 16:27:00 +09:00
parent e212eea08a
commit 06dae79b28
5 changed files with 114 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
lib/spdylay_session.c
View File

@ -875,7 +875,7 @@ int spdylay_session_on_headers_received(spdylay_session *session,
/* First we check readability from this stream. */
if(stream && (stream->shut_flags & SPDYLAY_SHUT_RD) == 0) {
if(spdylay_session_is_my_stream_id(session, frame->headers.stream_id)) {
if(stream && stream->state == SPDYLAY_STREAM_OPENED) {
if(stream->state == SPDYLAY_STREAM_OPENED) {
valid = 1;
spdylay_session_call_on_ctrl_frame_received(session, SPDYLAY_HEADERS,
frame);
@ -891,13 +891,17 @@ int spdylay_session_on_headers_received(spdylay_session *session,
}
} else {
/* If this is remote peer initiated stream, it is OK unless it
have sent FIN frame already. */
have sent FIN frame already. But if stream is in
SPDYLAY_STREAM_CLOSING, we discard the frame. This is a race
condition. */
valid = 1;
spdylay_session_call_on_ctrl_frame_received(session, SPDYLAY_HEADERS,
frame);
if(frame->headers.hd.flags & SPDYLAY_FLAG_FIN) {
spdylay_stream_shutdown(stream, SPDYLAY_SHUT_RD);
spdylay_session_close_stream_if_shut_rdwr(session, stream);
if(stream->state != SPDYLAY_STREAM_CLOSING) {
spdylay_session_call_on_ctrl_frame_received(session, SPDYLAY_HEADERS,
frame);
if(frame->headers.hd.flags & SPDYLAY_FLAG_FIN) {
spdylay_stream_shutdown(stream, SPDYLAY_SHUT_RD);
spdylay_session_close_stream_if_shut_rdwr(session, stream);
}
}
}
}
@ -1000,20 +1004,14 @@ static int spdylay_session_process_ctrl_frame(spdylay_session *session)
}
}
static int spdylay_session_process_data_frame(spdylay_session *session)
int spdylay_session_on_data_received(spdylay_session *session,
uint8_t flags, int32_t length,
int32_t stream_id)
{
int32_t stream_id;
uint8_t flags;
int32_t length;
spdylay_stream *stream;
int status_code = 0;
int valid = 0;
int r = 0;
stream_id = spdylay_get_uint32(session->iframe.headbuf) &
SPDYLAY_STREAM_ID_MASK;
flags = session->iframe.headbuf[4];
length = spdylay_get_uint32(&session->iframe.headbuf[4]) &
SPDYLAY_LENGTH_MASK;
spdylay_status_code status_code = 0;
spdylay_stream *stream;
stream = spdylay_session_get_stream(session, stream_id);
if(stream) {
if((stream->shut_flags & SPDYLAY_SHUT_RD) == 0) {
@ -1023,11 +1021,18 @@ static int spdylay_session_process_data_frame(spdylay_session *session)
} else if(stream->state != SPDYLAY_STREAM_CLOSING) {
status_code = SPDYLAY_PROTOCOL_ERROR;
}
} else {
} else if(stream->state != SPDYLAY_STREAM_CLOSING) {
/* It is OK if this is remote peer initiated stream and we did
not receive FIN. */
not receive FIN unless stream is in SPDYLAY_STREAM_CLOSING
state. This is a race condition. */
valid = 1;
}
if(valid) {
if(flags & SPDYLAY_FLAG_FIN) {
spdylay_stream_shutdown(stream, SPDYLAY_SHUT_RD);
spdylay_session_close_stream_if_shut_rdwr(session, stream);
}
}
} else {
status_code = SPDYLAY_PROTOCOL_ERROR;
}
@ -1042,6 +1047,21 @@ static int spdylay_session_process_data_frame(spdylay_session *session)
} else if(status_code != 0) {
r = spdylay_session_add_rst_stream(session, stream_id, status_code);
}
return r;
}
static int spdylay_session_process_data_frame(spdylay_session *session)
{
uint8_t flags;
int32_t length;
int32_t stream_id;
int r;
stream_id = spdylay_get_uint32(session->iframe.headbuf) &
SPDYLAY_STREAM_ID_MASK;
flags = session->iframe.headbuf[4];
length = spdylay_get_uint32(&session->iframe.headbuf[4]) &
SPDYLAY_LENGTH_MASK;
r = spdylay_session_on_data_received(session, flags, length, stream_id);
if(r < SPDYLAY_ERR_FATAL) {
return r;
} else {

7
lib/spdylay_session.h
View File

@ -208,6 +208,13 @@ int spdylay_session_on_goaway_received(spdylay_session *session,
int spdylay_session_on_headers_received(spdylay_session *session,
spdylay_frame *frame);
/*
* Called when DATA is received.
*/
int spdylay_session_on_data_received(spdylay_session *session,
uint8_t flags, int32_t length,
int32_t stream_id);
/*
* Returns spdylay_stream* object whose stream ID is |stream_id|. It
* could be NULL if such stream does not exist.

2
tests/main.c
View File

@ -88,6 +88,8 @@ int main()
test_spdylay_session_on_ping_received) ||
!CU_add_test(pSuite, "session_on_goaway_received",
test_spdylay_session_on_goaway_received) ||
!CU_add_test(pSuite, "session_on_data_received",
test_spdylay_session_on_data_received) ||
!CU_add_test(pSuite, "frame_unpack_nv", test_spdylay_frame_unpack_nv) ||
!CU_add_test(pSuite, "frame_count_nv_space",
test_spdylay_frame_count_nv_space) ||

64
tests/spdylay_session_test.c
View File

@ -330,6 +330,7 @@ void test_spdylay_session_on_syn_reply_received()
my_user_data user_data;
const char *nv[] = { NULL };
spdylay_frame frame;
spdylay_stream *stream;
user_data.valid = 0;
user_data.invalid = 0;
@ -349,6 +350,16 @@ void test_spdylay_session_on_syn_reply_received()
CU_ASSERT(SPDYLAY_STREAM_CLOSING ==
((spdylay_stream*)spdylay_map_find(&session->streams, 1))->state);
/* Check the situation when SYN_REPLY is received after peer sends
FIN */
stream = spdylay_session_open_stream(session, 3, SPDYLAY_FLAG_NONE, 0,
SPDYLAY_STREAM_OPENED);
spdylay_stream_shutdown(stream, SPDYLAY_SHUT_RD);
frame.syn_reply.stream_id = 3;
CU_ASSERT(0 == spdylay_session_on_syn_reply_received(session, &frame));
CU_ASSERT(2 == user_data.invalid);
spdylay_frame_syn_reply_free(&frame.syn_reply);
spdylay_session_del(session);
}
@ -522,6 +533,16 @@ void test_spdylay_session_on_headers_received()
CU_ASSERT(0 == spdylay_session_on_headers_received(session, &frame));
CU_ASSERT(1 == user_data.invalid);
/* Check to see when SPDYLAY_STREAM_CLOSING, incoming HEADERS is
discarded. */
spdylay_session_open_stream(session, 3, SPDYLAY_FLAG_NONE, 0,
SPDYLAY_STREAM_CLOSING);
frame.headers.stream_id = 3;
frame.headers.hd.flags = SPDYLAY_FLAG_NONE;
CU_ASSERT(0 == spdylay_session_on_headers_received(session, &frame));
CU_ASSERT(2 == user_data.valid);
CU_ASSERT(1 == user_data.invalid);
/* Server initiated stream */
spdylay_session_open_stream(session, 2, SPDYLAY_FLAG_NONE, 0,
SPDYLAY_STREAM_OPENING);
@ -609,3 +630,46 @@ void test_spdylay_session_on_goaway_received()
spdylay_frame_goaway_free(&frame.goaway);
spdylay_session_del(session);
}
void test_spdylay_session_on_data_received()
{
spdylay_session *session;
spdylay_session_callbacks callbacks;
memset(&callbacks, 0, sizeof(spdylay_session_callbacks));
my_user_data user_data;
spdylay_outbound_item *top;
int32_t stream_id = 2;
spdylay_stream *stream;
spdylay_session_client_new(&session, &callbacks, &user_data);
stream = spdylay_session_open_stream(session, stream_id, SPDYLAY_FLAG_NONE,
3, SPDYLAY_STREAM_OPENING);
CU_ASSERT(0 == spdylay_session_on_data_received(session, SPDYLAY_FLAG_NONE,
4096, stream_id));
CU_ASSERT(0 == stream->shut_flags);
CU_ASSERT(0 == spdylay_session_on_data_received(session, SPDYLAY_FLAG_FIN,
4096, stream_id));
CU_ASSERT(SPDYLAY_SHUT_RD == stream->shut_flags);
/* If SPDYLAY_STREAM_CLOSING state, DATA frame is discarded. */
stream_id = 4;
spdylay_session_open_stream(session, stream_id, SPDYLAY_FLAG_NONE,
3, SPDYLAY_STREAM_CLOSING);
CU_ASSERT(0 == spdylay_session_on_data_received(session, SPDYLAY_FLAG_NONE,
4096, stream_id));
CU_ASSERT(NULL == spdylay_session_get_ob_pq_top(session));
/* Check INVALID_STREAM case: DATA frame with stream ID which does
not exist. */
stream_id = 6;
CU_ASSERT(0 == spdylay_session_on_data_received(session, SPDYLAY_FLAG_NONE,
4096, stream_id));
top = spdylay_session_get_ob_pq_top(session);
CU_ASSERT(SPDYLAY_RST_STREAM == top->frame_type);
CU_ASSERT(SPDYLAY_INVALID_STREAM == top->frame->rst_stream.status_code);
spdylay_session_del(session);
}

1
tests/spdylay_session_test.h
View File

@ -37,5 +37,6 @@ void test_spdylay_session_reply_fail();
void test_spdylay_session_on_headers_received();
void test_spdylay_session_on_ping_received();
void test_spdylay_session_on_goaway_received();
void test_spdylay_session_on_data_received();
#endif // SPDYLAY_SESSION_TEST_H