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Add system view pg_stat_ssl

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This view shows information about all connections, such as if the
connection is using SSL, which cipher is used, and which client
certificate (if any) is used.

Reviews by Alex Shulgin, Heikki Linnakangas, Andres Freund & Michael Paquier
This commit is contained in:
Magnus Hagander
2015-04-12 19:07:46 +02:00
parent a10589a512
commit 9029f4b374
10 changed files with 320 additions and 7 deletions
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21
src/include/pgstat.h
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@ -701,6 +701,23 @@ typedef enum BackendState
*/
/*
* PgBackendSSLStatus
*
* For each backend, we keep the SSL status in a separate struct, that
* is only filled in if SSL is enabled.
*/
typedef struct PgBackendSSLStatus
{
/* Information about SSL connection */
int ssl_bits;
bool ssl_compression;
char ssl_version[NAMEDATALEN]; /* MUST be null-terminated */
char ssl_cipher[NAMEDATALEN]; /* MUST be null-terminated */
char ssl_clientdn[NAMEDATALEN]; /* MUST be null-terminated */
} PgBackendSSLStatus;
/* ----------
* PgBackendStatus
*
@ -744,6 +761,10 @@ typedef struct PgBackendStatus
SockAddr st_clientaddr;
char *st_clienthostname; /* MUST be null-terminated */
/* Information about SSL connection */
bool st_ssl;
PgBackendSSLStatus *st_sslstatus;
/* Is backend currently waiting on an lmgr lock? */
bool st_waiting;