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/*
* Copyright © 2012-2013 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>.
* Copyright © 2012 Canonical Ltd. All rights reserved.
*
* Author(s): Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
* David Barth <david.barth@canonical.com>
*
*/
#include <stdlib.h>
#include <string.h>
#include "mock_pam.h"
struct pam_handle {
void *item[PAM_NUM_ITEMS];
struct pam_conv *conv;
/* note: the other fields have been omitted */
};
int fake_conv (int num_msg, const struct pam_message **msg,
struct pam_response **resp, void *appdata_ptr)
{
struct pam_response *response = NULL;
response = malloc (sizeof (struct pam_response));
if (response == NULL)
return PAM_BUF_ERR;
response->resp_retcode = 0;
if (strcmp((*msg)->msg, "login:") == 0)
response->resp = strdup ("guest"); /* IMPORTANT: this needs to be in /etc/passwd */
else if (strcmp((*msg)->msg, "remote login:") == 0)
response->resp = strdup ("ruser");
else if (strcmp((*msg)->msg, "remote host:") == 0)
response->resp = strdup ("protocol://rhost/dummy");
else if (strcmp((*msg)->msg, "password:") == 0)
response->resp = strdup ("password");
else if (strcmp((*msg)->msg, "remote command:") == 0)
response->resp = strdup ("rcommand");
else
return PAM_SYMBOL_ERR; /* leaks... */
*resp = response;
return PAM_SUCCESS;
}
struct pam_conv static_conv = { &fake_conv, (void *)NULL };
pam_handle_t *pam_handle_new (void)
{
pam_handle_t *newh = malloc (sizeof (pam_handle_t));
if (newh != NULL) {
newh->conv = &static_conv;
memset(newh->item, 0, sizeof(void *) * PAM_NUM_ITEMS);
}
return newh;
}
int pam_get_item (const pam_handle_t *pamh, int type, const void **value)
{
if (pamh == NULL)
return PAM_SYSTEM_ERR;
if (type == PAM_CONV)
*value = pamh->conv;
else if (pamh->item[type] != NULL)
*value = pamh->item[type];
else
*value = NULL; /* will result in a prompt conversation */
return PAM_SUCCESS;
}
int pam_set_item (pam_handle_t *pamh, int type, const void *value)
{
if (pamh == NULL)
return PAM_SYSTEM_ERR;
void **slot, *tmp;
size_t nsize, osize;
slot = &pamh->item[type];
osize = nsize = 0;
if (*slot != NULL)
osize = strlen((const char *)*slot) + 1;
if (value != NULL)
nsize = strlen((const char *)value) + 1;
if (*slot != NULL) {
memset(*slot, 0xd0, osize);
free(*slot);
}
if (value != NULL) {
if ((tmp = malloc(nsize)) == NULL)
return PAM_BUF_ERR;
memcpy(tmp, value, nsize);
} else {
tmp = NULL;
}
*slot = tmp;
return PAM_SUCCESS;
}
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