ssl_passphrase_func.c File Reference

#include "postgres.h"
#include <float.h>
#include <stdio.h>
#include "libpq/libpq.h"
#include "libpq/libpq-be.h"
#include "utils/guc.h"

Include dependency graph for ssl_passphrase_func.c:

Go to the source code of this file.

Functions
static int	rot13_passphrase (char *buf, int size, int rwflag, void *userdata)
static void	set_rot13 (SSL_CTX *context, bool isServerStart)
void	_PG_init (void)

Variables
	PG_MODULE_MAGIC
static char *	ssl_passphrase = NULL

Function Documentation

_PG_init()

void _PG_init

(

void

)

Definition at line 35 of file ssl_passphrase_func.c.

{
    /* Define custom GUC variable. */
    DefineCustomStringVariable("ssl_passphrase.passphrase",
                               "passphrase before transformation",
                               NULL,
                               &ssl_passphrase,
                               NULL,
                               PGC_SIGHUP,
                               0,   /* no flags required */
                               NULL,
                               NULL,
                               NULL);
 
    MarkGUCPrefixReserved("ssl_passphrase");
 
    if (ssl_passphrase)
        openssl_tls_init_hook = set_rot13;
}

References DefineCustomStringVariable(), MarkGUCPrefixReserved(), openssl_tls_init_hook, PGC_SIGHUP, set_rot13(), and ssl_passphrase.

rot13_passphrase()

static int rot13_passphrase ( char *  buf, int  size, int  rwflag, void *  userdata  )

static

Definition at line 67 of file ssl_passphrase_func.c.

{
 
    Assert(ssl_passphrase != NULL);
    strlcpy(buf, ssl_passphrase, size);
    for (char *p = buf; *p; p++)
    {
        char        c = *p;
 
        if ((c >= 'a' && c <= 'm') || (c >= 'A' && c <= 'M'))
            *p = c + 13;
        else if ((c >= 'n' && c <= 'z') || (c >= 'N' && c <= 'Z'))
            *p = c - 13;
    }
 
    return strlen(buf);
}

References Assert, buf, size, ssl_passphrase, and strlcpy().

Referenced by set_rot13().

set_rot13()

static void set_rot13 ( SSL_CTX *  context, bool  isServerStart  )

static

Definition at line 56 of file ssl_passphrase_func.c.

{
    /* warn if the user has set ssl_passphrase_command */
    if (ssl_passphrase_command[0])
        ereport(WARNING,
                (errmsg("ssl_passphrase_command setting ignored by ssl_passphrase_func module")));
 
    SSL_CTX_set_default_passwd_cb(context, rot13_passphrase);
}

References context, ereport, errmsg(), rot13_passphrase(), ssl_passphrase_command, and WARNING.

Referenced by _PG_init().

Variable Documentation

PG_MODULE_MAGIC

PG_MODULE_MAGIC

Definition at line 21 of file ssl_passphrase_func.c.

ssl_passphrase

char* ssl_passphrase = NULL

static

Definition at line 23 of file ssl_passphrase_func.c.

Referenced by _PG_init(), and rot13_passphrase().