apr_status_t h2_session_goaway(h2_session *session, apr_status_t reason)
{
assert(session);
apr_status_t status = APR_SUCCESS;
if (session->aborted) {
return APR_EINVAL;
}
int rv = 0;
if (reason == APR_SUCCESS) {
rv = nghttp2_submit_shutdown_notice(session->ngh2);
}
else {
int err = 0;
int last_id = nghttp2_session_get_last_proc_stream_id(session->ngh2);
rv = nghttp2_submit_goaway(session->ngh2, last_id,
NGHTTP2_FLAG_NONE, err, NULL, 0);
}
if (rv != 0) {
status = APR_EGENERAL;
ap_log_cerror(APLOG_MARK, APLOG_ERR, status, session->c,
"session(%ld): submit goaway: %s",
session->id, nghttp2_strerror(rv));
}
return status;
}
static apr_status_t h2_session_abort_int(h2_session *session, int reason)
{
AP_DEBUG_ASSERT(session);
if (!session->aborted) {
session->aborted = 1;
if (session->ngh2) {
if (!reason) {
nghttp2_submit_goaway(session->ngh2, NGHTTP2_FLAG_NONE,
session->max_stream_received,
reason, NULL, 0);
nghttp2_session_send(session->ngh2);
h2_conn_io_flush(&session->io);
}
else {
const char *err = nghttp2_strerror(reason);
ap_log_cerror(APLOG_MARK, APLOG_DEBUG, 0, session->c,
"session(%ld): aborting session, reason=%d %s",
session->id, reason, err);
if (NGHTTP2_ERR_EOF == reason) {
/* This is our way of indication that the connection is
* gone. No use to send any GOAWAY frames. */
nghttp2_session_terminate_session(session->ngh2, reason);
}
else {
/* The connection might still be there and we shut down
* with GOAWAY and reason information. */
nghttp2_submit_goaway(session->ngh2, NGHTTP2_FLAG_NONE,
session->max_stream_received,
reason, (const uint8_t *)err,
strlen(err));
nghttp2_session_send(session->ngh2);
h2_conn_io_flush(&session->io);
}
}
}
h2_mplx_abort(session->mplx);
}
return APR_SUCCESS;
}
static void run_nghttp2_session_send(void) {
nghttp2_session *session;
nghttp2_session_callbacks callbacks;
nghttp2_nv nv[] = {MAKE_NV(":host", "example.org"),
MAKE_NV(":scheme", "https")};
nghttp2_data_provider data_prd;
nghttp2_settings_entry iv[2];
my_user_data ud;
int rv;
memset(&callbacks, 0, sizeof(nghttp2_session_callbacks));
callbacks.send_callback = null_send_callback;
data_prd.read_callback = fixed_length_data_source_read_callback;
ud.data_source_length = 64 * 1024;
iv[0].settings_id = NGHTTP2_SETTINGS_HEADER_TABLE_SIZE;
iv[0].value = 4096;
iv[1].settings_id = NGHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS;
iv[1].value = 100;
rv = nghttp2_session_client_new3(&session, &callbacks, &ud, NULL,
nghttp2_mem_fm());
if (rv != 0) {
goto client_new_fail;
}
rv = nghttp2_submit_request(session, NULL, nv, ARRLEN(nv), &data_prd, NULL);
if (rv < 0) {
goto fail;
}
rv = nghttp2_submit_headers(session, NGHTTP2_FLAG_NONE, -1, NULL, nv,
ARRLEN(nv), NULL);
if (rv < 0) {
goto fail;
}
rv = nghttp2_session_send(session);
if (rv != 0) {
goto fail;
}
/* The HEADERS submitted by the previous nghttp2_submit_headers will
have stream ID 3. Send HEADERS to that stream. */
rv = nghttp2_submit_headers(session, NGHTTP2_FLAG_NONE, 3, NULL, nv,
ARRLEN(nv), NULL);
if (rv != 0) {
goto fail;
}
rv = nghttp2_submit_data(session, NGHTTP2_FLAG_END_STREAM, 3, &data_prd);
if (rv != 0) {
goto fail;
}
rv = nghttp2_session_send(session);
if (rv != 0) {
goto fail;
}
rv = nghttp2_submit_rst_stream(session, NGHTTP2_FLAG_NONE, 3, NGHTTP2_CANCEL);
if (rv != 0) {
goto fail;
}
rv = nghttp2_session_send(session);
if (rv != 0) {
goto fail;
}
/* Sending against half-closed stream */
rv = nghttp2_submit_headers(session, NGHTTP2_FLAG_NONE, 3, NULL, nv,
ARRLEN(nv), NULL);
if (rv != 0) {
goto fail;
}
rv = nghttp2_submit_data(session, NGHTTP2_FLAG_END_STREAM, 3, &data_prd);
if (rv != 0) {
goto fail;
}
rv = nghttp2_submit_ping(session, NGHTTP2_FLAG_NONE, NULL);
if (rv != 0) {
goto fail;
}
rv = nghttp2_submit_settings(session, NGHTTP2_FLAG_NONE, iv, 2);
if (rv != 0) {
goto fail;
}
rv = nghttp2_session_send(session);
if (rv != 0) {
goto fail;
}
rv = nghttp2_submit_goaway(session, NGHTTP2_FLAG_NONE, 100, NGHTTP2_NO_ERROR,
NULL, 0);
if (rv != 0) {
goto fail;
}
rv = nghttp2_session_send(session);
if (rv != 0) {
goto fail;
}
fail:
nghttp2_session_del(session);
client_new_fail:;
}
