static int h2_protocol_switch(conn_rec *c, request_rec *r, server_rec *s, const char *protocol) { int found = 0; const char **protos = h2_h2_is_tls(c)? h2_tls_protos : h2_clear_protos; const char **p = protos; (void)s; while (*p) { if (!strcmp(*p, protocol)) { found = 1; break; } p++; } if (found) { h2_ctx *ctx = h2_ctx_get(c, 1); ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, "switching protocol to '%s'", protocol); h2_ctx_protocol_set(ctx, protocol); h2_ctx_server_set(ctx, s); if (r != NULL) { apr_status_t status; /* Switching in the middle of a request means that * we have to send out the response to this one in h2 * format. So we need to take over the connection * right away. */ ap_remove_input_filter_byhandle(r->input_filters, "http_in"); ap_remove_input_filter_byhandle(r->input_filters, "reqtimeout"); ap_remove_output_filter_byhandle(r->output_filters, "HTTP_HEADER"); /* Ok, start an h2_conn on this one. */ h2_ctx_server_set(ctx, r->server); status = h2_conn_setup(ctx, r->connection, r); if (status != APR_SUCCESS) { ap_log_rerror(APLOG_MARK, APLOG_DEBUG, status, r, APLOGNO(03088) "session setup"); return status; } h2_conn_run(ctx, c); return DONE; } return DONE; } return DECLINED; }
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; }