/*
Copyright ( c ) 2011 , 2018 MariaDB Corporation
This program is free software ; you can redistribute it and / or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation ; version 2 of the License .
This program is distributed in the hope that it will be useful ,
but WITHOUT ANY WARRANTY ; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the
GNU General Public License for more details .
You should have received a copy of the GNU General Public License
along with this program ; if not , write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA */
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <mysql/plugin_auth_common.h>
struct param {
unsigned char buf[10240 ], *ptr;
};
#include "auth_pam_tool.h"
static int roundtrip(struct param *param, const unsigned char *buf,
int buf_len, unsigned char **pkt)
{
unsigned char b= AP_CONV;
if (write(1 , &b, 1 ) < 1 || write_string(1 , buf, buf_len))
return -1 ;
*pkt= (unsigned char *) param->buf;
return read_string(0 , (char *) param->buf, (int ) sizeof (param->buf));
}
typedef struct st_mysql_server_auth_info
{
/**
User name as sent by the client and shown in USER ( ) .
NULL if the client packet with the user name was not received yet .
*/
char *user_name;
/**
A corresponding column value from the mysql . user table for the
matching account name
*/
char *auth_string;
/**
Matching account name as found in the mysql . user table .
A plugin can override it with another name that will be
used by MySQL for authorization , and shown in CURRENT_USER ( )
*/
char authenticated_as[MYSQL_USERNAME_LENGTH+1 ];
} MYSQL_SERVER_AUTH_INFO;
#include "auth_pam_base.c"
int main(int argc __attribute__((unused)), char **argv __attribute__((unused)))
{
struct param param;
MYSQL_SERVER_AUTH_INFO info;
unsigned char field;
int res;
char a_buf[MYSQL_USERNAME_LENGTH + 1 + 1024 ];
if ((res= setreuid(0 , 0 )))
fprintf(stderr, "Got error %d from setreuid()\n" , (int ) errno);
if (read(0 , &field, 1 ) < 1 )
return -1 ;
#ifndef DBUG_OFF
pam_debug= field & 1 ;
#endif
winbind_hack= field & 2 ;
PAM_DEBUG((stderr, "PAM: sandbox started [%s].\n" , argv[0 ]));
info.user_name= a_buf;
if ((res= read_string(0 , info.user_name, sizeof (a_buf))) < 0 )
return -1 ;
PAM_DEBUG((stderr, "PAM: sandbox username [%s].\n" , info.user_name));
info.auth_string= info.user_name + res + 1 ;
if (read_string(0 , info.auth_string, sizeof (a_buf) - 1 - res) < 0 )
return -1 ;
PAM_DEBUG((stderr, "PAM: sandbox auth string [%s].\n" , info.auth_string));
if ((res= pam_auth_base(¶m, &info)) != CR_OK)
{
PAM_DEBUG((stderr, "PAM: auth failed, sandbox closed.\n" ));
return -1 ;
}
if (info.authenticated_as[0 ])
{
PAM_DEBUG((stderr, "PAM: send authenticated_as field.\n" ));
field= AP_AUTHENTICATED_AS;
if (write(1 , &field, 1 ) < 1 ||
write_string(1 , (unsigned char *) info.authenticated_as,
strlen(info.authenticated_as)))
return -1 ;
}
PAM_DEBUG((stderr, "PAM: send OK result.\n" ));
field= AP_EOF;
if (write(1 , &field, 1 ) != 1 )
return -1 ;
PAM_DEBUG((stderr, "PAM: sandbox closed.\n" ));
return 0 ;
}
Messung V0.5 in Prozent C=97 H=100 G=98
¤ Dauer der Verarbeitung: 0.16 Sekunden
(vorverarbeitet am 2026-10-08)
¤
*© Formatika GbR, Deutschland