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ngtcp2: share common functionality

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Share common functions/structs between ngtcp2 HTTP/3 and the proxy
version.

Fix bugs in proxy implementation when it comes to stream and pollset
handling and transfer lifetimes.

Curl_multi_xfer_sockbuf_borrow: work without multi

When a connection gets shutdown by a share, the easy handle used is
share->admin and it does not have a multi handle. In that case let
Curl_multi_xfer_sockbuf_borrow() allocate a buffer to be freed on
release.

This happens when a TLS filter sends its last notify through a HTTP/3
proxy tunnel.

Closes #21871
This commit is contained in:
Stefan Eissing 2026-06-05 12:55:50 +02:00 • committed by Daniel Stenberg
parent 4fcf9c8f59
commit f924489b25
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GPG key ID: 5CC908FDB71E12C2
43 changed files with 3254 additions and 4970 deletions
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10
lib/ftp.c
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@ -1390,10 +1390,13 @@ static CURLcode ftp_state_use_port(struct Curl_easy *data,
ftp_state(data, ftpc, FTP_STOP);
}
else {
/* successfully set up the listen socket filter. SSL needed? */
/* successfully set up the listen socket filter. SSL needed?
* Use the control connections origin for cert verification. */
if(conn->bits.ftp_use_data_ssl && data->set.ftp_use_port &&
!Curl_conn_is_ssl(conn, SECONDARYSOCKET)) {
result = Curl_ssl_cfilter_add(data, conn, SECONDARYSOCKET);
result = Curl_ssl_cfilter_add(
data, Curl_conn_get_origin(conn, FIRSTSOCKET),
conn, SECONDARYSOCKET);
}
conn->bits.do_more = FALSE;
Curl_pgrsTime(data, TIMER_STARTACCEPT);
@ -3196,7 +3199,8 @@ static CURLcode ftp_pp_statemachine(struct Curl_easy *data,
/* this was BLOCKING, keep it so for now */
bool done;
if(!Curl_conn_is_ssl(conn, FIRSTSOCKET)) {
result = Curl_ssl_cfilter_add(data, conn, FIRSTSOCKET);
result = Curl_ssl_cfilter_add(
data, Curl_conn_get_origin(conn, FIRSTSOCKET), conn, FIRSTSOCKET);
if(result) {
/* we failed and bail out */
return CURLE_USE_SSL_FAILED;