PAM_DHKEYS(7) Standards, Environments, and Macros PAM_DHKEYS(7)
NAME
pam_dhkeys - authentication Diffie-Hellman keys management module
SYNOPSIS
pam_dhkeys.so.1DESCRIPTION
The
pam_dhkeys.so.1 service module provides functionality to two
PAM services: Secure
RPC authentication and Secure
RPC authentication
token management.
Secure RPC authentication differs from regular unix authentication
because some
ONC RPCs use Secure RPC as the underlying security
mechanism.
The following options may be passed to the module:
debug syslog(3C) debugging information at
LOG_DEBUG level
nowarn Turn off warning messages
Authentication Services
If the user has Diffie-Hellman keys,
pam_sm_authenticate() establishes secret keys for the user specified by the
PAM_USER (equivalent to running
keylogin(1)), using the authentication token
found in the
PAM_AUTHTOK item. If
pam_sm_setcred() is called with
PAM_ESTABLISH_CRED and the user's secure
RPC credentials need to be
established, these credentials are set. This is equivalent to running
keylogin(1).
If the credentials could not be set and
PAM_SILENT is not specified,
a diagnostic message is displayed. If
pam_setcred() is called with
PAM_DELETE_CRED, the user's secure
RPC credentials are unset. This is
equivalent to running
keylogout(1).
PAM_REINITIALIZE_CRED and
PAM_REFRESH_CRED are not supported and
return
PAM_IGNORE.
Authentication Token Management
The
pam_sm_chauthtok() implementation checks whether the old login
password decrypts the users secret keys. If it doesn't this module
prompts the user for an old Secure
RPC password and stores it in a
pam data item called
SUNW_OLDRPCPASS. This data item can be used by
the store module to effectively update the users secret keys.
ERRORS
The authentication service returns the following error codes:
PAM_SUCCESS Credentials set successfully.
PAM_IGNORE Credentials not needed to access the password
repository.
PAM_USER_UNKNOWN PAM_USER is not set, or the user is unknown.
PAM_AUTH_ERR No secret keys were set.
PAM_AUTHTOK is not set,
no credentials are present or there is a wrong
password.
PAM_BUF_ERR Module ran out of memory.
PAM_SYSTEM_ERR Credentials could not be stored, or netname could
not be created.
The authentication token management returns the following error
codes:
PAM_SUCCESS Old
rpc password is set in
SUNW_OLDRPCPASS PAM_USER_UNKNOWN User in
PAM_USER is unknown.
PAM_AUTHTOK_ERR User did not provide a password that decrypts the
secret keys.
PAM_BUF_ERR Module ran out of memory.
ATTRIBUTES
See
attributes(7) for descriptions of the following attributes:
+--------------------+-------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-------------------------+
|Interface Stability | Evolving |
+--------------------+-------------------------+
|MT Level | MT-Safe with exceptions |
+--------------------+-------------------------+
SEE ALSO
keylogin(1),
keylogout(1),
syslog(3C),
libpam(3LIB),
pam(3PAM),
pam_authenticate(3PAM),
pam_chauthtok(3PAM),
pam_setcred(3PAM),
pam_sm_authenticate(3PAM),
pam_sm_chauthtok(3PAM),
pam_sm_setcred(3PAM),
pam.conf(5),
attributes(7),
pam_authtok_check(7),
pam_authtok_get(7),
pam_authtok_store(7),
pam_passwd_auth(7),
pam_unix_account(7),
pam_unix_auth(7),
pam_unix_session(7)NOTES
The interfaces in
libpam(3LIB) are MT-Safe only if each thread within
the multi-threaded application uses its own PAM handle.
The
pam_unix(7) module is no longer supported. Similar functionality
is provided by
pam_authtok_check(7),
pam_authtok_get(7),
pam_authtok_store(7),
pam_dhkeys(7),
pam_passwd_auth(7),
pam_unix_account(7),
pam_unix_auth(7), and
pam_unix_session(7).
August 19, 2023 PAM_DHKEYS(7)
