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Server CID change.

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This commit is contained in:
Sergey Kandaurov 2020-04-28 18:24:01 +03:00
parent 467c8a13c9
commit 9aeb2c0ece
1 changed files with 32 additions and 5 deletions
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37
src/event/ngx_event_quic.c
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@ -152,6 +152,7 @@ static int ngx_quic_send_alert(ngx_ssl_conn_t *ssl_conn,
static ngx_int_t ngx_quic_new_connection(ngx_connection_t *c, ngx_ssl_t *ssl,
ngx_quic_tp_t *tp, ngx_quic_header_t *pkt,
ngx_connection_handler_pt handler);
static ngx_int_t ngx_quic_new_cid(ngx_pool_t *pool, ngx_str_t *sid);
static ngx_int_t ngx_quic_init_connection(ngx_connection_t *c);
static void ngx_quic_input_handler(ngx_event_t *rev);
@ -612,12 +613,13 @@ ngx_quic_new_connection(ngx_connection_t *c, ngx_ssl_t *ssl, ngx_quic_tp_t *tp,
qc->congestion.ssthresh = NGX_MAX_SIZE_T_VALUE;
qc->congestion.recovery_start = ngx_current_msec;
qc->dcid.len = pkt->dcid.len;
qc->dcid.data = ngx_pnalloc(c->pool, pkt->dcid.len);
if (qc->dcid.data == NULL) {
if (ngx_quic_new_cid(c->pool, &qc->dcid) != NGX_OK) {
return NGX_ERROR;
}
ngx_memcpy(qc->dcid.data, pkt->dcid.data, qc->dcid.len);
#ifdef NGX_QUIC_DEBUG_PACKETS
ngx_quic_hexdump(c->log, "quic server CID", qc->dcid.data, qc->dcid.len);
#endif
qc->scid.len = pkt->scid.len;
qc->scid.data = ngx_pnalloc(c->pool, qc->scid.len);
@ -636,7 +638,7 @@ ngx_quic_new_connection(ngx_connection_t *c, ngx_ssl_t *ssl, ngx_quic_tp_t *tp,
keys = &c->quic->keys[ssl_encryption_initial];
if (ngx_quic_set_initial_secret(c->pool, &keys->client, &keys->server,
&qc->dcid)
&pkt->dcid)
!= NGX_OK)
{
return NGX_ERROR;
@ -667,6 +669,31 @@ ngx_quic_new_connection(ngx_connection_t *c, ngx_ssl_t *ssl, ngx_quic_tp_t *tp,
}
static ngx_int_t
ngx_quic_new_cid(ngx_pool_t *pool, ngx_str_t *cid)
{
uint8_t len;
if (RAND_bytes(&len, sizeof(len)) != 1) {
return NGX_ERROR;
}
len = len % 10 + 10;
cid->len = len;
cid->data = ngx_pnalloc(pool, len);
if (cid->data == NULL) {
return NGX_ERROR;
}
if (RAND_bytes(cid->data, len) != 1) {
return NGX_ERROR;
}
return NGX_OK;
}
static ngx_int_t
ngx_quic_init_connection(ngx_connection_t *c)
{