postgresql

History

Heikki Linnakangas 593d4e47db Support OpenSSL 1.1.0. Changes needed to build at all: - Check for SSL_new in configure, now that SSL_library_init is a macro. - Do not access struct members directly. This includes some new code in pgcrypto, to use the resource owner mechanism to ensure that we don't leak OpenSSL handles, now that we can't embed them in other structs anymore. - RAND_SSLeay() -> RAND_OpenSSL() Changes that were needed to silence deprecation warnings, but were not strictly necessary: - RAND_pseudo_bytes() -> RAND_bytes(). - SSL_library_init() and OpenSSL_config() -> OPENSSL_init_ssl() - ASN1_STRING_data() -> ASN1_STRING_get0_data() - DH_generate_parameters() -> DH_generate_parameters() - Locking callbacks are not needed with OpenSSL 1.1.0 anymore. (Good riddance!) Also change references to SSLEAY_VERSION_NUMBER with OPENSSL_VERSION_NUMBER, for the sake of consistency. OPENSSL_VERSION_NUMBER has existed since time immemorial. Fix SSL test suite to work with OpenSSL 1.1.0. CA certificates must have the "CA:true" basic constraint extension now, or OpenSSL will refuse them. Regenerate the test certificates with that. The "openssl" binary, used to generate the certificates, is also now more picky, and throws an error if an X509 extension is specified in "req_extensions", but that section is empty. Backpatch to all supported branches, per popular demand. In back-branches, we still support OpenSSL 0.9.7 and above. OpenSSL 0.9.6 should still work too, but I didn't test it. In master, we only support 0.9.8 and above. Patch by Andreas Karlsson, with additional changes by me. Discussion: <20160627151604.GD1051@msg.df7cb.de>		2016-09-15 14:42:29 +03:00
..
Makefile	Move code shared between libpq and backend from backend/libpq/ to common/.	2016-09-02 13:49:59 +03:00
README.SSL	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
auth.c	Move code shared between libpq and backend from backend/libpq/ to common/.	2016-09-02 13:49:59 +03:00
be-fsstubs.c	Add macros to make AllocSetContextCreate() calls simpler and safer.	2016-08-27 17:50:38 -04:00
be-secure-openssl.c	Support OpenSSL 1.1.0.	2016-09-15 14:42:29 +03:00
be-secure.c	pgindent run for 9.6	2016-06-09 18:02:36 -04:00
crypt.c	Move code shared between libpq and backend from backend/libpq/ to common/.	2016-09-02 13:49:59 +03:00
hba.c	Move code shared between libpq and backend from backend/libpq/ to common/.	2016-09-02 13:49:59 +03:00
ifaddr.c	Move code shared between libpq and backend from backend/libpq/ to common/.	2016-09-02 13:49:59 +03:00
pg_hba.conf.sample	Remove support for native krb5 authentication	2014-01-19 17:05:01 +01:00
pg_ident.conf.sample	Reformat the comments in pg_hba.conf and pg_ident.conf	2010-01-26 06:58:39 +00:00
pqcomm.c	Move code shared between libpq and backend from backend/libpq/ to common/.	2016-09-02 13:49:59 +03:00
pqformat.c	Fix several mistakes around parallel workers and client_encoding.	2016-06-30 18:35:32 -04:00
pqmq.c	Add a nonlocalized version of the severity field to client error messages.	2016-08-26 16:20:17 -04:00
pqsignal.c	Update copyright for 2016	2016-01-02 13:33:40 -05:00

README.SSL

src/backend/libpq/README.SSL

SSL
===

>From the servers perspective:


  Receives StartupPacket
           |
           |
 (Is SSL_NEGOTIATE_CODE?) -----------  Normal startup
           |                  No
           |
           | Yes
           |
           |
 (Server compiled with USE_SSL?) ------- Send 'N'
           |                       No        |
           |                                 |
           | Yes                         Normal startup
           |
           |
        Send 'S'
           |
           |
      Establish SSL
           |
           |
      Normal startup





>From the clients perspective (v6.6 client _with_ SSL):


      Connect
         |
         |
  Send packet with SSL_NEGOTIATE_CODE
         |
         |
  Receive single char  ------- 'S' -------- Establish SSL
         |                                       |
         | '<else>'                              |
         |                                  Normal startup
         |
         |
   Is it 'E' for error  ------------------- Retry connection
         |                  Yes             without SSL
         | No
         |
   Is it 'N' for normal ------------------- Normal startup
         |                  Yes
         |
   Fail with unknown

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