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libpq: Add support for dumping SSL key material to file

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This adds a new connection parameter which instructs libpq to
write out keymaterial clientside into a file in order to make
connection debugging with Wireshark and similar tools possible.
The file format used is the standardized NSS format.

Author: Abhishek Chanda <abhishek.becs@gmail.com>
Co-authored-by: Daniel Gustafsson <daniel@yesql.se>
Reviewed-by: Jacob Champion <jacob.champion@enterprisedb.com>
Discussion: https://postgr.es/m/CAKiP-K85C8uQbzXKWf5wHQPkuygGUGcufke713iHmYWOe9q2dA@mail.gmail.com
This commit is contained in:
Daniel Gustafsson
2025-04-03 13:16:43 +02:00
parent e4309f73f6
commit 2da74d8d64
9 changed files with 120 additions and 2 deletions
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2
configure.ac
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@ -1382,7 +1382,7 @@ if test "$with_ssl" = openssl ; then
# Function introduced in OpenSSL 1.0.2, not in LibreSSL.
AC_CHECK_FUNCS([SSL_CTX_set_cert_cb])
# Function introduced in OpenSSL 1.1.1, not in LibreSSL.
AC_CHECK_FUNCS([X509_get_signature_info SSL_CTX_set_num_tickets])
AC_CHECK_FUNCS([X509_get_signature_info SSL_CTX_set_num_tickets SSL_CTX_set_keylog_callback])
AC_DEFINE([USE_OPENSSL], 1, [Define to 1 to build with OpenSSL support. (--with-ssl=openssl)])
elif test "$with_ssl" != no ; then
AC_MSG_ERROR([--with-ssl must specify openssl])