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MINOR: connections: Add a new CO_FL_SSL_NO_CACHED_INFO flag

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Add a new flag to connections, CO_FL_SSL_NO_CACHED_INFO, and set it for
checks.
It lets the ssl layer know that he should not use cached informations,
such as the ALPN as stored in the server, or cached sessions.
This wlil be used for checks, as checks may target different servers, or
used a different SSL configuration, so we can't assume the stored
informations are correct.

This should be backported to 3.3, and may be backported up to 2.8 if the
attempts to do session resume by checks is proven to be a problem.
This commit is contained in:
Olivier Houchard
2025-12-09 16:10:24 +01:00
committed by Olivier Houchard
parent 260d64d787
commit dcce936912
2 changed files with 5 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
include/haproxy/connection-t.h
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@@ -145,6 +145,7 @@ enum {
CO_FL_WAIT_ROOM = 0x00000800, /* data sink is full */
CO_FL_WANT_SPLICING = 0x00001000, /* we wish to use splicing on the connection when possible */
CO_FL_SSL_NO_CACHED_INFO = 0x00002000, /* Don't use any cached information when creating a new SSL connection */
/* unused: 0x00002000 */
CO_FL_EARLY_SSL_HS = 0x00004000, /* We have early data pending, don't start SSL handshake yet */
@@ -212,13 +213,13 @@ static forceinline char *conn_show_flags(char *buf, size_t len, const char *deli
/* flags */
_(CO_FL_SAFE_LIST, _(CO_FL_IDLE_LIST, _(CO_FL_CTRL_READY,
_(CO_FL_REVERSED, _(CO_FL_ACT_REVERSING, _(CO_FL_OPT_MARK, _(CO_FL_OPT_TOS,
_(CO_FL_XPRT_READY, _(CO_FL_WANT_DRAIN, _(CO_FL_WAIT_ROOM, _(CO_FL_EARLY_SSL_HS,
_(CO_FL_XPRT_READY, _(CO_FL_WANT_DRAIN, _(CO_FL_WAIT_ROOM, _(CO_FL_SSL_NO_CACHED_INFO, _(CO_FL_EARLY_SSL_HS,
_(CO_FL_EARLY_DATA, _(CO_FL_SOCKS4_SEND, _(CO_FL_SOCKS4_RECV, _(CO_FL_SOCK_RD_SH,
_(CO_FL_SOCK_WR_SH, _(CO_FL_ERROR, _(CO_FL_FDLESS, _(CO_FL_WAIT_L4_CONN,
_(CO_FL_WAIT_L6_CONN, _(CO_FL_SEND_PROXY, _(CO_FL_ACCEPT_PROXY, _(CO_FL_ACCEPT_CIP,
_(CO_FL_SSL_WAIT_HS, _(CO_FL_PRIVATE, _(CO_FL_RCVD_PROXY, _(CO_FL_SESS_IDLE,
_(CO_FL_XPRT_TRACKED
))))))))))))))))))))))))))));
)))))))))))))))))))))))))))));
/* epilogue */
_(~0U);
return buf;