Stefan Eissing 34cdcb9b96 openssl: improve ssl shutdown handling
- If SSL shutdown is not finished then make an additional call to
  SSL_read to gather additional tracing.

- Fix http2 and h2-proxy filters to forward do_close() calls to the next
  filter.

For example h2 and SSL shutdown before and after this change:

Before:

Curl_conn_close -> cf_hc_close -> Curl_conn_cf_discard_chain ->
ssl_cf_destroy

After:

Curl_conn_close -> cf_hc_close -> cf_h2_close -> cf_setup_close ->
ssl_cf_close

Note that currently the tracing does not show output on the connection
closure handle. Refer to discussion in #11878.

Ref: https://github.com/curl/curl/discussions/11878

Closes https://github.com/curl/curl/pull/11858
2023-09-26 03:40:20 -04:00
2023-08-31 23:02:10 +00:00
2023-08-31 23:02:10 +00:00
2023-08-31 23:02:10 +00:00
2020-11-04 23:59:47 +01:00
2023-05-14 23:22:23 +02:00
2022-09-29 10:44:12 +02:00
2023-08-31 23:02:10 +00:00
2023-09-25 23:35:49 +02:00

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