FTP servers using SSL can be configured to check TLS session reuse on the DATA connection. They hand out a new session on every CONTROL connect and require to see the client using exactly that one when up-/downloading on DATA. This means: 1. We have to configure the SSL filter on the DATA connection with exactly the same peers. 2. We have to remember the SSL session on the CONTROL connection - separately from the session cache. The SSL filter on the DATA connection then looks for a session at the CONTROL filter and, if present, uses that. Tests: Enable `require_ssl_reuse` in our pytest setup for vsftpd. This reproduces the problem reported in #22225 and verifies the fix. Skip ftp+SSL pytests for rustls, as we have no possibility to reuse sessions in that backend. Schannel: we do not run these tests with the backend. I expect it has similar problems but am not able to verify. Reported-by: Laurent Sabourin Fixes #22225 Closes #22246 |
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| README | ||
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curl is a command-line tool for transferring data from or to a server using URLs. It supports these protocols: DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS, POP3, POP3S, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS.
Learn how to use curl by reading the man page or everything curl.
Find out how to install curl by reading the INSTALL document.
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