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QUIC: reset qc->error to zero again.

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Following the previous change that removed posting a close event
in OpenSSL compat layer, now ngx_quic_close_connection() is always
called on error path with either NGX_ERROR or qc->error set.

This allows to remove a special value -1 served as a missing error,
which simplifies the code.  Partially reverts d3fb12d77.

Also, this improves handling of the draining connection state, which
consists of posting a close event with NGX_OK and no qc->error set,
where it was previously converted to NGX_QUIC_ERR_INTERNAL_ERROR.
Notably, this is rather a cosmetic fix, because drained connections
do not send any packets including CONNECTION_CLOSE, and qc->error
is not otherwise used.
This commit is contained in:
Sergey Kandaurov 2025-05-14 23:33:00 +04:00 committed by Roman Arutyunyan
parent 7468a10b62
commit 5d7fd4a7e3
2 changed files with 4 additions and 4 deletions
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6
src/event/quic/ngx_event_quic.c
View File

@ -72,7 +72,7 @@ ngx_quic_connstate_dbg(ngx_connection_t *c)
if (qc) {
if (qc->error != (ngx_uint_t) -1) {
if (qc->error) {
p = ngx_slprintf(p, last, "%s", qc->error_app ? " app" : "");
p = ngx_slprintf(p, last, " error:%ui", qc->error);
@ -520,7 +520,7 @@ ngx_quic_close_connection(ngx_connection_t *c, ngx_int_t rc)
* to terminate the connection immediately.
*/
if (qc->error == (ngx_uint_t) -1) {
if (qc->error == 0 && rc == NGX_ERROR) {
qc->error = NGX_QUIC_ERR_INTERNAL_ERROR;
qc->error_app = 0;
}
@ -961,7 +961,7 @@ ngx_quic_handle_payload(ngx_connection_t *c, ngx_quic_header_t *pkt)
qc = ngx_quic_get_connection(c);
qc->error = (ngx_uint_t) -1;
qc->error = 0;
qc->error_reason = 0;
c->log->action = "decrypting packet";

2
src/event/quic/ngx_event_quic_ssl.c
View File

@ -415,7 +415,7 @@ ngx_quic_crypto_input(ngx_connection_t *c, ngx_chain_t *data,
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_do_handshake: %d", n);
if (qc->error != (ngx_uint_t) -1) {
if (qc->error) {
return NGX_ERROR;
}