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ALPN: query filter

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Add a connection filter query to obtained the negotiated ALPN
protocol to check in setup/protocols how the connection needs
to behave.

Remove the members `alpn` and `proxy_alpn` from `connectdata`.
This commit is contained in:
Stefan Eissing 2025-07-17 11:53:31 +02:00
parent 44f5307891
commit 1dd0978ab5
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16 changed files with 168 additions and 151 deletions
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24
lib/cf-https-connect.c
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@ -226,24 +226,22 @@ static CURLcode baller_connected(struct Curl_cfilter *cf,
cf->next = winner->cf;
winner->cf = NULL;
switch(cf->conn->alpn) {
case CURL_HTTP_VERSION_3:
break;
case CURL_HTTP_VERSION_2:
#ifdef USE_NGHTTP2
{
/* Using nghttp2, we add the filter "below" us, so when the conn
* closes, we tear it down for a fresh reconnect */
result = Curl_http2_switch_at(cf, data);
if(result) {
ctx->state = CF_HC_FAILURE;
ctx->result = result;
return result;
const char *alpn = Curl_conn_cf_get_alpn_negotiated(cf->next, data);
if(alpn && !strcmp("h2", alpn)) {
result = Curl_http2_switch_at(cf, data);
if(result) {
ctx->state = CF_HC_FAILURE;
ctx->result = result;
return result;
}
}
#endif
break;
default:
break;
}
#endif
ctx->state = CF_HC_SUCCESS;
cf->connected = TRUE;
return result;