ctrl |= WINBIND_DEBUG_ARG;
else if (!strcasecmp(*v, "debug_state"))
ctrl |= WINBIND_DEBUG_STATE;
+ else if (!strcasecmp(*v, "silent"))
+ ctrl |= WINBIND_SILENT;
else if (!strcasecmp(*v, "use_authtok"))
ctrl |= WINBIND_USE_AUTHTOK_ARG;
else if (!strcasecmp(*v, "use_first_pass"))
* @return boolean Returns True if message has been sent, False if not.
*/
-static BOOL _pam_send_password_expiry_message(pam_handle_t *pamh, int ctrl, time_t next_change, time_t now, BOOL *already_expired)
+static BOOL _pam_send_password_expiry_message(pam_handle_t *pamh,
+ int ctrl,
+ time_t next_change,
+ time_t now,
+ int warn_pwd_expire,
+ BOOL *already_expired)
{
int days = 0;
struct tm tm_now, tm_next_change;
}
if ((next_change < 0) ||
- (next_change > now + DAYS_TO_WARN_BEFORE_PWD_EXPIRES * SECONDS_PER_DAY)) {
+ (next_change > now + warn_pwd_expire * SECONDS_PER_DAY)) {
return False;
}
return True;
}
- if (days > 0 && days < DAYS_TO_WARN_BEFORE_PWD_EXPIRES) {
+ if (days > 0 && days < warn_pwd_expire) {
_make_remark_format(pamh, ctrl, PAM_TEXT_INFO, "Your password will expire in %d %s",
days, (days > 1) ? "days":"day");
return True;
static void _pam_warn_password_expiry(pam_handle_t *pamh,
int flags,
const struct winbindd_response *response,
+ int warn_pwd_expire,
BOOL *already_expired)
{
time_t now = time(NULL);
/* check if the info3 must change timestamp has been set */
next_change = response->data.auth.info3.pass_must_change_time;
- if (_pam_send_password_expiry_message(pamh, flags, next_change, now,
+ if (_pam_send_password_expiry_message(pamh, flags, next_change, now,
+ warn_pwd_expire,
already_expired)) {
return;
}
next_change = response->data.auth.info3.pass_last_set_time +
response->data.auth.policy.expire;
- if (_pam_send_password_expiry_message(pamh, flags, next_change, now,
+ if (_pam_send_password_expiry_message(pamh, flags, next_change, now,
+ warn_pwd_expire,
already_expired)) {
return;
}
} else if (PAM_WB_CACHED_LOGON(info3_user_flgs)) {
_make_remark(pamh, ctrl, PAM_ERROR_MSG,
- "Logging on using cached account. Network resources can be unavailable");
+ "Domain Controller unreachable, using cached credentials instead. Network resources may be unavailable");
_pam_log_debug(pamh, ctrl, LOG_DEBUG,
- "User %s logged on using cached account\n", username);
+ "User %s logged on using cached credentials\n", username);
+ }
+}
+
+/**
+ * Send PAM_ERROR_MSG for krb5 errors.
+ *
+ * @param pamh PAM handle
+ * @param ctrl PAM winbind options.
+ * @param username User in PAM request.
+ * @param info3_user_flgs Info3 flags containing logon type bits.
+ *
+ * @return void.
+ */
+
+static void _pam_warn_krb5_failure(pam_handle_t *pamh, int ctrl, const char *username, uint32 info3_user_flgs)
+{
+ if (PAM_WB_KRB5_CLOCK_SKEW(info3_user_flgs)) {
+ _make_remark(pamh, ctrl, PAM_ERROR_MSG,
+ "Failed to establish your Kerberos Ticket cache "
+ "due time differences\n"
+ "with the domain controller. "
+ "Please verify the system time.\n");
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "User %s: Clock skew when getting Krb5 TGT\n", username);
}
}
const char *pass,
const char *member,
const char *cctype,
+ const int warn_pwd_expire,
struct winbindd_response *p_response,
time_t *pwd_last_set,
char **user_ret)
if (ret == PAM_SUCCESS) {
/* warn a user if the password is about to expire soon */
- _pam_warn_password_expiry(pamh, ctrl, &response, &already_expired);
+ _pam_warn_password_expiry(pamh, ctrl, &response,
+ warn_pwd_expire,
+ &already_expired);
if (already_expired == True) {
_pam_log_debug(pamh, ctrl, LOG_DEBUG, "Password has expired "
/* inform about logon type */
_pam_warn_logon_type(pamh, ctrl, user, response.data.auth.info3.user_flgs);
+ /* inform about krb5 failures */
+ _pam_warn_krb5_failure(pamh, ctrl, user, response.data.auth.info3.user_flgs);
+
/* set some info3 info for other modules in the stack */
_pam_set_data_info3(pamh, ctrl, &response);
return parm_opt;
}
+int get_config_item_int(const pam_handle_t *pamh,
+ int argc,
+ const char **argv,
+ int ctrl,
+ dictionary *d,
+ const char *item)
+{
+ int parm_opt = -1, i = 0;
+ char *key = NULL;
+
+ /* let the pam opt take precedence over the pam_winbind.conf option */
+ for (i = 0; i < argc; i++) {
+
+ if ((strncmp(argv[i], item, strlen(item)) == 0)) {
+ char *p;
+
+ if ( (p = strchr( argv[i], '=' )) == NULL) {
+ _pam_log(pamh, ctrl, LOG_INFO,
+ "no \"=\" delimiter for \"%s\" found\n",
+ item);
+ goto out;
+ }
+ parm_opt = atoi(p + 1);
+ _pam_log_debug(pamh, ctrl, LOG_INFO,
+ "PAM config: %s '%d'\n",
+ item, parm_opt);
+ return parm_opt;
+ }
+ }
+
+ if (d != NULL) {
+ if (!asprintf(&key, "global:%s", item)) {
+ goto out;
+ }
+
+ parm_opt = iniparser_getint(d, key, -1);
+ SAFE_FREE(key);
+
+ _pam_log_debug(pamh, ctrl, LOG_INFO,
+ "CONFIG file: %s '%d'\n",
+ item, parm_opt);
+ }
+out:
+ return parm_opt;
+}
+
const char *get_krb5_cc_type_from_config(const pam_handle_t *pamh, int argc, const char **argv, int ctrl, dictionary *d)
{
return get_conf_item_string(pamh, argc, argv, ctrl, d, "krb5_ccache_type", WINBIND_KRB5_CCACHE_TYPE);
return get_conf_item_string(pamh, argc, argv, ctrl, d, "require-membership-of", WINBIND_REQUIRED_MEMBERSHIP);
}
+int get_warn_pwd_expire_from_config(const pam_handle_t *pamh,
+ int argc,
+ const char **argv,
+ int ctrl,
+ dictionary *d)
+{
+ int ret;
+ ret = get_config_item_int(pamh, argc, argv, ctrl, d,
+ "warn_pwd_expire");
+ /* no or broken setting */
+ if (ret <= 0) {
+ return DEFAULT_DAYS_TO_WARN_BEFORE_PWD_EXPIRES;
+ }
+ return ret;
+}
+
PAM_EXTERN
int pam_sm_authenticate(pam_handle_t *pamh, int flags,
int argc, const char **argv)
const char *password;
const char *member = NULL;
const char *cctype = NULL;
+ int warn_pwd_expire;
int retval = PAM_AUTH_ERR;
dictionary *d = NULL;
char *username_ret = NULL;
char *new_authtok_required = NULL;
- const char *real_username = NULL;
+ char *real_username = NULL;
/* parse arguments */
int ctrl = _pam_parse(pamh, flags, argc, argv, &d);
cctype = get_krb5_cc_type_from_config(pamh, argc, argv, ctrl, d);
+ warn_pwd_expire = get_warn_pwd_expire_from_config(pamh, argc, argv,
+ ctrl, d);
+
/* Now use the username to look up password */
retval = winbind_auth_request(pamh, ctrl, username, password, member,
- cctype, NULL, NULL, &username_ret);
+ cctype, warn_pwd_expire, NULL, NULL,
+ &username_ret);
if (retval == PAM_NEW_AUTHTOK_REQD ||
retval == PAM_AUTHTOK_EXPIRED) {
/* verify that this is the password for this user */
ret = winbind_auth_request(pamh, ctrl, user, pass_old,
- NULL, NULL, &response, &pwdlastset_prelim, NULL);
+ NULL, NULL, 0, &response,
+ &pwdlastset_prelim, NULL);
if (ret != PAM_ACCT_EXPIRED &&
ret != PAM_AUTHTOK_EXPIRED &&
const char *member = get_member_from_config(pamh, argc, argv, ctrl, d);
const char *cctype = get_krb5_cc_type_from_config(pamh, argc, argv, ctrl, d);
+ const int warn_pwd_expire =
+ get_warn_pwd_expire_from_config(pamh, argc, argv, ctrl,
+ d);
ret = winbind_auth_request(pamh, ctrl, user, pass_new,
- member, cctype, &response, NULL, &username_ret);
+ member, cctype, 0, &response,
+ NULL, &username_ret);
_pam_overwrite(pass_new);
_pam_overwrite(pass_old);
pass_old = pass_new = NULL;
if (ret == PAM_SUCCESS) {
/* warn a user if the password is about to expire soon */
- _pam_warn_password_expiry(pamh, ctrl, &response, NULL);
+ _pam_warn_password_expiry(pamh, ctrl, &response,
+ warn_pwd_expire , NULL);
/* set some info3 info for other modules in the stack */
_pam_set_data_info3(pamh, ctrl, &response);
git.samba.org / sfrench / samba-autobuild / .git / blobdiff