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Add configuration parameter ssl_renegotiation_limit to control

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how often we do SSL session key renegotiation. Can be set to
0 to disable renegotiation completely, which is required if
a broken SSL library is used (broken patches to CVE-2009-3555
a known cause) or when using a client library that can't do
renegotiation.
This commit is contained in:
Magnus Hagander
2010-02-25 13:26:16 +00:00
parent 0ccc5153f8
commit 413d34be4e
4 changed files with 45 additions and 6 deletions
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13
src/backend/utils/misc/guc.c
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@ -10,7 +10,7 @@
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.541 2010/02/17 04:19:40 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.542 2010/02/25 13:26:15 mha Exp $
*
*--------------------------------------------------------------------
*/
@ -117,6 +117,7 @@ extern char *temp_tablespaces;
extern bool synchronize_seqscans;
extern bool fullPageWrites;
extern int vacuum_defer_cleanup_age;
extern int ssl_renegotiation_limit;
int trace_recovery_messages = LOG;
@ -1968,6 +1969,16 @@ static struct config_int ConfigureNamesInt[] =
0, 0, INT_MAX, assign_tcp_keepalives_interval, show_tcp_keepalives_interval
},
{
{"ssl_renegotiation_limit", PGC_USERSET, CONN_AUTH_SECURITY,
gettext_noop("Set the amount of traffic to send and receive before renegotiating the encryption keys."),
NULL,
GUC_UNIT_KB,
},
&ssl_renegotiation_limit,
512 * 1024, 0, MAX_KILOBYTES, NULL, NULL
},
{
{"tcp_keepalives_count", PGC_USERSET, CLIENT_CONN_OTHER,
gettext_noop("Maximum number of TCP keepalive retransmits."),