lcmaps_localaccount.c

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/*                                                                                                            
 * Copyright (c) Members of the EGEE Collaboration. 2004.
 * See http://eu-egee.org/partners/ for details on the copyright holders.
 * For license conditions see the license file or
 * http://eu-egee.org/license.html
 */

/*
 * Copyright (c) 2001 EU DataGrid.
 * For license conditions see http://www.eu-datagrid.org/license.html
 *
 * Copyright (c) 2001, 2002 by
 *     Martijn Steenbakkers <martijn@nikhef.nl>,
 *     David Groep <davidg@nikhef.nl>,
 *     NIKHEF Amsterdam, the Netherlands
 */

/*****************************************************************************
                            Include header files
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pwd.h>

#include "lcmaps_config.h"
#include "lcmaps_modules.h"
#include "lcmaps_arguments.h"
#include "lcmaps_cred_data.h"
#include "lcmaps_gridlist.h"

/******************************************************************************
                                Definitions
******************************************************************************/

/******************************************************************************
                          Module specific prototypes
******************************************************************************/

/******************************************************************************
                       Define module specific variables
******************************************************************************/

static char *gridmapfile = NULL;


/******************************************************************************
Function:   plugin_initialize
Description:
    Initialize plugin
Parameters:
    argc, argv
    argv[0]: the name of the plugin
Returns:
    LCMAPS_MOD_SUCCESS : succes
    LCMAPS_MOD_FAIL    : failure
    LCMAPS_MOD_NOFILE  : db file not found (will halt LCMAPS initialization)
******************************************************************************/
int plugin_initialize(
        int argc,
        char ** argv
)
{
    char * logstr = "\tlcmaps_plugin_localaccount-plugin_initialize()";
    int i;

    lcmaps_log_debug(2,"%s: passed arguments:\n",logstr);
    for (i=0; i < argc; i++)
    {
       lcmaps_log_debug(2,"%s: arg %d is %s\n", logstr, i, argv[i]);
    }

    /*
     * the first will be the thing to edit/select (gridmap(file))
     * the second will be the path && filename of the gridmapfile
     */

    /*
     * Parse arguments, argv[0] = name of plugin, so start with i = 1
     */
    for (i = 1; i < argc; i++)
    {
        if ( ((strcmp(argv[i], "-gridmap") == 0) ||
              (strcmp(argv[i], "-GRIDMAP") == 0) ||
              (strcmp(argv[i], "-gridmapfile") == 0) ||
              (strcmp(argv[i], "-GRIDMAPFILE") == 0))
             && (i + 1 < argc))
        {
            if ((argv[i + 1] != NULL) && (strlen(argv[i + 1]) > 0))
            {
                 gridmapfile = strdup(argv[i + 1]);
            }
            i++;
        }
        else
        {
            lcmaps_log(0,"%s: Error in initialization parameter: %s (failure)\n", logstr, argv[i]);
            return LCMAPS_MOD_FAIL;
        }
    }

    return LCMAPS_MOD_SUCCESS;
} 

/******************************************************************************
Function:   plugin_introspect
Description:
    return list of required arguments
Parameters:

Returns:
    LCMAPS_MOD_SUCCESS : succes
    LCMAPS_MOD_FAIL    : failure
******************************************************************************/
int plugin_introspect(
        int * argc,
        lcmaps_argument_t ** argv
)
{
    char * logstr = "\tlcmaps_plugin_localaccount-plugin_introspect()";
    static lcmaps_argument_t argList[] = {
        {"user_dn"      ,       "char *"        , 1,   NULL},
        {NULL           ,       NULL            , -1,   NULL}
    };

    lcmaps_log_debug(1,"%s: introspecting\n", logstr);

    *argv = argList;
    *argc = lcmaps_cntArgs(argList);
    lcmaps_log_debug(1,"%s: address first argument: 0x%x\n", logstr, argList);

    return LCMAPS_MOD_SUCCESS;
}


/******************************************************************************
Function:   plugin_run
Description:
    Gather credentials for LCMAPS
Parameters:
    argc: number of arguments
    argv: list of arguments
Returns:
    LCMAPS_MOD_SUCCESS: authorization succeeded
    LCMAPS_MOD_FAIL   : authorization failed
******************************************************************************/
int plugin_run(
        int argc,
        lcmaps_argument_t * argv
)
{
    char *              logstr = "\tlcmaps_plugin_localaccount-plugin_run()";
    char *              dn          = NULL; 
    char *              username    = NULL;
    struct passwd       *user_info  = NULL;
    int                 i           = 0;
    int                 cnt_sec_gid = 0;
    gid_t *             sec_gid     = NULL;
    int                 rc          = 0;
     
    /*
     * The beginning
     */
    lcmaps_log_debug(1,"%s:\n", logstr);

    /*
     * Try to get the ordered values:
     */
    if ( ( dn = *(char **) lcmaps_getArgValue("user_dn", "char *", argc, argv) ) )
        lcmaps_log_debug(1,"%s: found dn: %s\n", logstr, dn);
    else
        lcmaps_log_debug(1,"%s: could not get value of dn !\n", logstr);


    /*
     * Check the gridmapfile
     */

    if ((gridmapfile != NULL) && (strlen(gridmapfile) > 0))
        lcmaps_log_debug(1,"%s: gridmapfile is: %s\n", logstr, gridmapfile);
    else
    {
        if (gridmapfile) free(gridmapfile);
        gridmapfile = NULL;
        lcmaps_log_debug(1,"%s: No gridmapfile assigned, so function must find out for it self\n", logstr);
    }

    /*
     * Try to find the dn in the gridmapfile
     */


    if ( (rc = lcmaps_gridlist(dn, &username, gridmapfile, MATCH_EXCLUDE|MATCH_NO_WILD_CHARS, ".", NULL)) == LCMAPS_MOD_SUCCESS)
        lcmaps_log_debug(1,"%s: found username: %s\n", logstr, username);
    else if (rc == LCMAPS_MOD_NOFILE)
    {
        lcmaps_log(0, "%s: Could not find the gridmapfile %s\n", logstr, gridmapfile);
        goto fail_localaccount;
    }
    else if (rc == LCMAPS_MOD_NOENTRY)
    {
        lcmaps_log_debug(1, "%s: No entry found for %s in %s\n", logstr, dn, gridmapfile);
        goto fail_localaccount;
    }
    else
    {
        lcmaps_log_debug(1,"%s: could not get value of username !\n", logstr);
        goto fail_localaccount;
    }

    /*
     * Get userid to pwd_t structure
     */


    if (username && (strlen(username) > 0))
    {

        if ( ( user_info = getpwnam(username) ) )
        {
            lcmaps_log_debug(2,"%s: address user_info: %p\n", logstr, user_info);
            lcmaps_log_debug(2,"%s: username : %s, char ptr: %p, address char ptr: %p\n", logstr, user_info->pw_name, user_info->pw_name, &(user_info->pw_name));
            lcmaps_log_debug(2,"%s: password : %s\n", logstr, user_info->pw_passwd);
            lcmaps_log_debug(2,"%s: user_id  : %d, address uid: %p\n", logstr, user_info->pw_uid, &(user_info->pw_uid));
            lcmaps_log_debug(2,"%s: group_id : %d\n", logstr, user_info->pw_gid);
            lcmaps_log_debug(2,"%s: realname : %s\n", logstr, user_info->pw_gecos);
            lcmaps_log_debug(2,"%s: home dir : %s\n", logstr, user_info->pw_dir);
            lcmaps_log_debug(2,"%s: shellprg : %s\n", logstr, user_info->pw_shell);

            /* 
             * Add this credential data to the credential data repository in the plugin manager
             */
            addCredentialData(DN,  &dn);
            addCredentialData(UID, &(user_info->pw_uid));
            addCredentialData(PRI_GID, &(user_info->pw_gid));

            /*
             * Retrieve secondary group id's
             */
            if (lcmaps_get_gidlist(username, &cnt_sec_gid, &sec_gid)==0)
            {
                for (i = 0; i < cnt_sec_gid; i++)
                {
                    addCredentialData(SEC_GID, &(sec_gid[i]));
                }
                free(sec_gid);
            }
        }
        else
        {
            lcmaps_log(0,"%s: no user account found name \"%s\"\n", logstr,username);
            goto fail_localaccount;
        }
    }
    else
    {   // error (msg is already given)
        goto fail_localaccount;
    }

    /* succes */
 success_localaccount:
    if (username) free(username);
    lcmaps_log_time(0,"%s: localaccount plugin succeeded\n", logstr);
    return LCMAPS_MOD_SUCCESS;

 fail_localaccount:
    if (username) free(username);
    lcmaps_log_time(0,"%s: localaccount plugin failed\n", logstr);
    return LCMAPS_MOD_FAIL;
}

/******************************************************************************
Function:   plugin_terminate
Description:
    Terminate plugin
Parameters:

Returns:
    LCMAPS_MOD_SUCCESS : succes
    LCMAPS_MOD_FAIL    : failure
******************************************************************************/
int plugin_terminate()
{
    char *              logstr = "\tlcmaps_plugin_localaccount-plugin_terminate()";

    lcmaps_log_debug(1,"%s: terminating\n", logstr);

    if (gridmapfile) free(gridmapfile);

    return LCMAPS_MOD_SUCCESS;
}

/******************************************************************************
CVS Information:
    $Source: /cvs/jra1mw/org.glite.security.lcmaps-plugins-basic/src/localaccount/lcmaps_localaccount.c,v $
    $Date: 2005/02/27 01:30:41 $
    $Revision: 1.4 $
    $Author: msteenba $
******************************************************************************/

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