PAM_SM_CHAUTHTOK(3)

PAM_SM_CHAUTHTOK(3) | Library Functions Manual | PAM_SM_CHAUTHTOK(3)

# NAME

`pam_sm_chauthtok` — service module implementation for pam_chauthtok

# SYNOPSIS

`#include <sys/types.h>`
`#include <security/pam_appl.h>`
`#include <security/pam_modules.h>`

int
`pam_sm_chauthtok`(pam_handle_t *pamh, int flags, int argc, const char **argv);

# DESCRIPTION

The `pam_sm_chauthtok`() function is the service module's implementation of the pam_chauthtok(3) API function.

When the application calls pam_chauthtok(3), the service function is called twice, first with the `PAM_PRELIM_CHECK` flag set and then again with the `PAM_UPDATE_AUTHTOK` flag set.

# RETURN VALUES

The `pam_sm_chauthtok`() function returns one of the following values:

[`PAM_SUCCESS`]
  Success.
[`PAM_ABORT`]
  General failure.
[`PAM_AUTHTOK_DISABLE_AGING`]
  Authentication token aging disabled.
[`PAM_AUTHTOK_ERR`]
  Authentication token failure.
[`PAM_AUTHTOK_LOCK_BUSY`]
  Authentication token lock busy.
[`PAM_AUTHTOK_RECOVERY_ERR`]
  Failed to recover old authentication token.
[`PAM_BUF_ERR`]
  Memory buffer error.
[`PAM_CONV_ERR`]
  Conversation failure.
[`PAM_IGNORE`]
  Ignore this module.
[`PAM_PERM_DENIED`]
  Permission denied.
[`PAM_SERVICE_ERR`]
  Error in service module.
[`PAM_SYSTEM_ERR`]
  System error.
[`PAM_TRY_AGAIN`]
  Try again.

# SEE ALSO

pam(3), pam_chauthtok(3), pam_strerror(3)

# STANDARDS

X/Open Single Sign-On Service (XSSO) - Pluggable Authentication Modules, June 1997.

# AUTHORS

The `pam_sm_chauthtok`() function and this manual page were developed for the FreeBSD Project by ThinkSec AS and Network Associates Laboratories, the Security Research Division of Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 (“CBOSS”), as part of the DARPA CHATS research program.

The OpenPAM library is maintained by Dag-Erling Smørgrav <des@des.no>.

June 27, 2023 | NetBSD 11.0