apr_status_t h2_conn_run(struct h2_ctx *ctx, conn_rec *c)
{
apr_status_t status;
int mpm_state = 0;
do {
if (c->cs) {
c->cs->sense = CONN_SENSE_DEFAULT;
}
status = h2_session_process(h2_ctx_session_get(ctx), async_mpm);
if (c->cs) {
c->cs->state = CONN_STATE_WRITE_COMPLETION;
}
if (APR_STATUS_IS_EOF(status)) {
ap_log_cerror(APLOG_MARK, APLOG_DEBUG, status, c,
"h2_session(%ld): process, closing conn", c->id);
c->keepalive = AP_CONN_CLOSE;
}
else {
c->keepalive = AP_CONN_KEEPALIVE;
}
if (ap_mpm_query(AP_MPMQ_MPM_STATE, &mpm_state)) {
break;
}
} while (!async_mpm
&& c->keepalive == AP_CONN_KEEPALIVE
&& mpm_state != AP_MPMQ_STOPPING);
return DONE;
}
int h2_h2_process_conn(conn_rec* c)
{
apr_status_t status;
h2_ctx *ctx;
if (c->master) {
return DECLINED;
}
ctx = h2_ctx_get(c, 0);
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, "h2_h2, process_conn");
if (h2_ctx_is_task(ctx)) {
/* our stream pseudo connection */
ap_log_cerror(APLOG_MARK, APLOG_TRACE2, 0, c, "h2_h2, task, declined");
return DECLINED;
}
if (!ctx && c->keepalives == 0) {
const char *proto = ap_get_protocol(c);
if (APLOGctrace1(c)) {
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, "h2_h2, process_conn, "
"new connection using protocol '%s', direct=%d, "
"tls acceptable=%d", proto, h2_allows_h2_direct(c),
h2_is_acceptable_connection(c, 1));
}
if (!strcmp(AP_PROTOCOL_HTTP1, proto)
&& h2_allows_h2_direct(c)
&& h2_is_acceptable_connection(c, 1)) {
/* Fresh connection still is on http/1.1 and H2Direct is enabled.
* Otherwise connection is in a fully acceptable state.
* -> peek at the first 24 incoming bytes
*/
apr_bucket_brigade *temp;
char *s = NULL;
apr_size_t slen;
temp = apr_brigade_create(c->pool, c->bucket_alloc);
status = ap_get_brigade(c->input_filters, temp,
AP_MODE_SPECULATIVE, APR_BLOCK_READ, 24);
if (status != APR_SUCCESS) {
ap_log_cerror(APLOG_MARK, APLOG_DEBUG, status, c, APLOGNO(03054)
"h2_h2, error reading 24 bytes speculative");
apr_brigade_destroy(temp);
return DECLINED;
}
apr_brigade_pflatten(temp, &s, &slen, c->pool);
if ((slen >= 24) && !memcmp(H2_MAGIC_TOKEN, s, 24)) {
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c,
"h2_h2, direct mode detected");
if (!ctx) {
ctx = h2_ctx_get(c, 1);
}
h2_ctx_protocol_set(ctx, h2_h2_is_tls(c)? "h2" : "h2c");
}
else {
ap_log_cerror(APLOG_MARK, APLOG_TRACE2, 0, c,
"h2_h2, not detected in %d bytes: %s",
(int)slen, s);
}
apr_brigade_destroy(temp);
}
}
if (ctx) {
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, "process_conn");
if (!h2_ctx_session_get(ctx)) {
status = h2_conn_setup(ctx, c, NULL);
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, c, "conn_setup");
if (status != APR_SUCCESS) {
h2_ctx_clear(c);
return status;
}
}
return h2_conn_run(ctx, c);
}
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, "h2_h2, declined");
return DECLINED;
}