On 9/2/15 7:15 PM, Andres Freund wrote:
>> Add a regression test suite for SSL support.
>> It's not run by the global "check" or "installcheck" targets, because the
>> temporary installation it creates accepts TCP connections from any user
>> the same host, which is insecure.
> We could just implement SSL over unix sockets. Obviously the
> connection-encryption aspect isn't actually useful, but e.g. client
> certs still make sense. Besides, it allows to avoid concerns like the
See old discussion here:
At the time, we didn't have this test suite, obviously, so the utility
would be have been limited, but now it looks quite interesting.
The only trick, as I remember, was that clients tend to prefer SSL
automatically, which we probably don't want for Unix-domain sockets, so
we'd need to tweak those settings a bit.
The "old patch" referred to in that old thread wasn't actually attached,
so here it is, for amusement.
diff -ur ../cvs-pgsql/src/backend/postmaster/postmaster.c ./src/backend/postmaster/postmaster.c
--- ../cvs-pgsql/src/backend/postmaster/postmaster.c 2008-01-04 15:55:25.000000000 +0100
+++ ./src/backend/postmaster/postmaster.c 2008-01-04 16:44:35.000000000 +0100
@@ -1448,8 +1448,8 @@
- /* No SSL when disabled or on Unix sockets */
- if (!EnableSSL || IS_AF_UNIX(port->laddr.addr.ss_family))
+ /* No SSL when disabled */
+ if (!EnableSSL)
SSLok = 'N';
SSLok = 'S'; /* Support for SSL */
diff -ur ../cvs-pgsql/src/interfaces/libpq/fe-connect.c ./src/interfaces/libpq/fe-connect.c
--- ../cvs-pgsql/src/interfaces/libpq/fe-connect.c 2008-01-04 15:55:31.000000000 +0100
+++ ./src/interfaces/libpq/fe-connect.c 2008-01-04 16:51:09.000000000 +0100
@@ -1261,11 +1261,6 @@
* If SSL is enabled and we haven't already got it running,
* request it instead of sending the startup message.
- if (IS_AF_UNIX(conn->raddr.addr.ss_family))
- /* Don't bother requesting SSL over a Unix socket */
- conn->allow_ssl_try = false;
if (conn->allow_ssl_try && !conn->wait_ssl_try &&
conn->ssl == NULL)
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