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/*
* $Id: sfcBasicPAMAuthentication.c,v 1.1 2007/02/15 14:07:22 mihajlov Exp $
*
* © Copyright IBM Corp. 2007
*
* THIS FILE IS PROVIDED UNDER THE TERMS OF THE ECLIPSE PUBLIC LICENSE
* ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS FILE
* CONSTITUTES RECIPIENTS ACCEPTANCE OF THE AGREEMENT.
*
* You can obtain a current copy of the Eclipse Public License from
* http://www.opensource.org/licenses/eclipse-1.0.php
*
* Author: Viktor Mihajlovski <mihajlov@de.ibm.com>
*
* Description:
*
* Basic Authentication exit implemented via PAM.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <security/pam_appl.h>
#define SFCB_PAM_APP "sfcb"
static int sfcBasicConv(int num_msg, const struct pam_message **msg,
struct pam_response **resp, void *credentials)
{
if (num_msg == 1 && msg && resp && credentials) {
/* we just understand one message */
(*resp) = calloc(num_msg,sizeof(struct pam_response));
(*resp)->resp_retcode = 0;
(*resp)->resp = NULL;
switch (msg[0]->msg_style) {
case PAM_PROMPT_ECHO_OFF:
case PAM_PROMPT_ECHO_ON:
(*resp)->resp = strdup((char*) credentials);
break;
default:
break;
}
return PAM_SUCCESS;
}
return PAM_CONV_ERR;
}
static int _sfcBasicAuthenticateRemote(char *user, char *pw, char *rhost)
{
struct pam_conv sfcConvStruct = {
sfcBasicConv,
pw
};
pam_handle_t *pamh = NULL;
int rc, retval;
rc = pam_start(SFCB_PAM_APP, user, &sfcConvStruct, & pamh);
if (rc == PAM_SUCCESS) {
rc = pam_authenticate(pamh, PAM_SILENT);
}
if (rc == PAM_SUCCESS) {
/* host based authentication not yet supported
- needs client IP address extraction in httpAdapter
*/
if (rhost) {
pam_set_item(pamh, PAM_RHOST, rhost);
}
rc = pam_acct_mgmt(pamh, PAM_SILENT);
}
if (rc == PAM_SUCCESS) {
retval = 1;
} else {
retval = 0;
}
pam_end(pamh, rc);
return retval;
}
int _sfcBasicAuthenticate(char *user, char *pw)
{
return _sfcBasicAuthenticateRemote(user, pw, NULL);
}
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