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Change pam_get_authtok()'s prototype so the caller can specify

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what token it wants.  Also introduce PAM_OLDAUTHTOK_PROMPT.

Sponsored by:	DARPA, NAI Labs


git-svn-id: svn+ssh://svn.openpam.org/svn/openpam/trunk@100 185d5e19-27fe-0310-9dcf-9bff6b9f3609
This commit is contained in:
Dag-Erling Smørgrav 2002-04-06 17:05:21 +00:00
parent 6a52d30938
commit 1eafe40ac3
5 changed files with 64 additions and 14 deletions
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3
include/security/openpam.h
View file

@ -31,7 +31,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $P4: //depot/projects/openpam/include/security/openpam.h#12 $
* $P4: //depot/projects/openpam/include/security/openpam.h#13 $
*/
#ifndef _SECURITY_OPENPAM_H_INCLUDED
@ -65,6 +65,7 @@ pam_error(pam_handle_t *_pamh,
int
pam_get_authtok(pam_handle_t *_pamh,
int _item,
const char **_authtok,
const char *_prompt);

3
include/security/pam_constants.h
View file

@ -31,7 +31,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $P4: //depot/projects/openpam/include/security/pam_constants.h#12 $
* $P4: //depot/projects/openpam/include/security/pam_constants.h#13 $
*/
#ifndef _PAM_CONSTANTS_H_INCLUDED
@ -119,6 +119,7 @@ enum {
PAM_RUSER = 8,
PAM_USER_PROMPT = 9,
PAM_AUTHTOK_PROMPT = 10, /* OpenPAM extension */
PAM_OLDAUTHTOK_PROMPT = 11, /* OpenPAM extension */
PAM_NUM_ITEMS /* OpenPAM extension */
};

63
lib/pam_get_authtok.c
View file

@ -31,7 +31,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $P4: //depot/projects/openpam/lib/pam_get_authtok.c#12 $
* $P4: //depot/projects/openpam/lib/pam_get_authtok.c#13 $
*/
#include <sys/param.h>
@ -41,6 +41,9 @@
#include "openpam_impl.h"
const char authtok_prompt[] = "Password:";
const char oldauthtok_prompt[] = "Old Password:";
/*
* OpenPAM extension
*
@ -49,34 +52,51 @@
int
pam_get_authtok(pam_handle_t *pamh,
int item,
const char **authtok,
const char *prompt)
{
char *p, *resp;
int r, style;
const char *default_prompt;
char *resp;
int pitem, r, style;
if (pamh == NULL || authtok == NULL)
return (PAM_SYSTEM_ERR);
*authtok = NULL;
switch (item) {
case PAM_AUTHTOK:
pitem = PAM_AUTHTOK_PROMPT;
default_prompt = authtok_prompt;
break;
case PAM_OLDAUTHTOK:
pitem = PAM_OLDAUTHTOK_PROMPT;
default_prompt = oldauthtok_prompt;
break;
default:
return (PAM_SYMBOL_ERR);
}
if (openpam_get_option(pamh, "try_first_pass") ||
openpam_get_option(pamh, "use_first_pass")) {
r = pam_get_item(pamh, PAM_AUTHTOK, (const void **)authtok);
r = pam_get_item(pamh, item, (const void **)authtok);
if (r == PAM_SUCCESS && *authtok != NULL)
return (PAM_SUCCESS);
else if (openpam_get_option(pamh, "use_first_pass"))
return (r == PAM_SUCCESS ? PAM_AUTH_ERR : r);
}
if (pam_get_item(pamh, PAM_AUTHTOK_PROMPT,
(const void **)&p) != PAM_SUCCESS || p == NULL)
if (prompt == NULL)
prompt = "Password:";
if (prompt == NULL) {
r = pam_get_item(pamh, pitem, (const void **)&prompt);
if (r != PAM_SUCCESS || prompt == NULL)
prompt = default_prompt;
}
style = openpam_get_option(pamh, "echo_pass") ?
PAM_PROMPT_ECHO_ON : PAM_PROMPT_ECHO_OFF;
r = pam_prompt(pamh, style, &resp, "%s", p ? p : prompt);
r = pam_prompt(pamh, style, &resp, "%s", prompt);
if (r != PAM_SUCCESS)
return (r);
*authtok = resp;
return (pam_set_item(pamh, PAM_AUTHTOK, *authtok));
return (pam_set_item(pamh, item, *authtok));
}
/*
@ -87,3 +107,26 @@ pam_get_authtok(pam_handle_t *pamh,
* =pam_set_item
* !PAM_SYMBOL_ERR
*/
/**
* The =pam_get_authtok function returns the cached authentication token,
* or prompts the user if no token is currently cached. Either way, a
* pointer to the authentication token is stored in the location pointed
* to by the =authtok argument.
*
* The =item argument must have one of the following values:
*
* =PAM_AUTHTOK
* Returns the current authentication token, or the new token
* when changing authentication tokens.
* =PAM_OLDAUTHTOK
* Returns the previous authentication token when changing
* authentication tokens.
*
* The =prompt argument specifies a prompt to use if no token is cached.
* If =NULL, the =PAM_AUTHTOK_PROMPT or =PAM_OLDAUTHTOK_PROMPT item, as
* appropriate, will be used. If that item is also =NULL, a hardcoded
* default prompt will be used.
*
* >pam_get_item
*/

6
lib/pam_get_item.c
View file

@ -31,7 +31,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $P4: //depot/projects/openpam/lib/pam_get_item.c#10 $
* $P4: //depot/projects/openpam/lib/pam_get_item.c#11 $
*/
#include <sys/param.h>
@ -66,6 +66,7 @@ pam_get_item(pam_handle_t *pamh,
case PAM_CONV:
case PAM_USER_PROMPT:
case PAM_AUTHTOK_PROMPT:
case PAM_OLDAUTHTOK_PROMPT:
*item = pamh->item[item_type];
return (PAM_SUCCESS);
default:
@ -112,6 +113,9 @@ pam_get_item(pam_handle_t *pamh,
* =PAM_AUTHTOK_PROMPT:
* The prompt to use when asking the applicant for an
* authentication token.
* =PAM_OLDAUTHTOK_PROMPT:
* The prompt to use when asking the applicant for an
* expired authentication token prior to changing it.
*
* See =pam_start for a description of =struct pam_conv.
*

3
lib/pam_set_item.c
View file

@ -31,7 +31,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $P4: //depot/projects/openpam/lib/pam_set_item.c#12 $
* $P4: //depot/projects/openpam/lib/pam_set_item.c#13 $
*/
#include <sys/param.h>
@ -73,6 +73,7 @@ pam_set_item(pam_handle_t *pamh,
case PAM_RUSER:
case PAM_USER_PROMPT:
case PAM_AUTHTOK_PROMPT:
case PAM_OLDAUTHTOK_PROMPT:
if (*slot != NULL)
size = strlen(*slot) + 1;
if (item != NULL)