/*
* $Id$
*/
#ifndef _PAM_UNIX_SUPPORT_H
#define _PAM_UNIX_SUPPORT_H
#include <pwd.h>
/*
* File to read value of ENCRYPT_METHOD from.
*/
#define LOGIN_DEFS "/etc/login.defs"
/*
* here is the string to inform the user that the new passwords they
* typed were not the same.
*/
/* type definition for the control options */
typedef struct {
const char *token;
unsigned long long mask; /* shall assume 64 bits of flags */
unsigned long long flag;
unsigned int is_hash_algo;
} UNIX_Ctrls;
/*
* macro to determine if a given flag is on
*/
#define on(x,ctrl) (unix_args[x].flag & ctrl)
/*
* macro to determine that a given flag is NOT on
*/
#define off(x,ctrl) (!on(x,ctrl))
/*
* macro to turn on/off a ctrl flag manually
*/
#define set(x,ctrl) (ctrl = ((ctrl)&unix_args[x].mask)|unix_args[x].flag)
#define unset(x,ctrl) (ctrl &= ~(unix_args[x].flag))
/* the generic mask */
#define _ALL_ON_ (~0ULL)
/* end of macro definitions definitions for the control flags */
/* ****************************************************************** *
* ctrl flags proper..
*/
/*
* here are the various options recognized by the unix module. They
* are enumerated here and then defined below. Internal arguments are
* given NULL tokens.
*/
#define UNIX__OLD_PASSWD 0 /* internal */
#define UNIX__VERIFY_PASSWD 1 /* internal */
#define UNIX__IAMROOT 2 /* internal */
#define UNIX_AUDIT 3 /* print more things than debug..
some information may be sensitive */
#define UNIX_USE_FIRST_PASS 4
#define UNIX_TRY_FIRST_PASS 5
#define UNIX_AUTHTOK_TYPE 6 /* TYPE for pam_get_authtok() */
#define UNIX__PRELIM 7 /* internal */
#define UNIX__UPDATE 8 /* internal */
#define UNIX__NONULL 9 /* internal */
#define UNIX__QUIET 10 /* internal */
#define UNIX_USE_AUTHTOK 11 /* insist on reading PAM_AUTHTOK */
#define UNIX_SHADOW 12 /* signal shadow on */
#define UNIX_MD5_PASS 13 /* force the use of MD5 passwords */
#define UNIX__NULLOK 14 /* Null token ok */
#define UNIX_DEBUG 15 /* send more info to syslog(3) */
#define UNIX_NODELAY 16 /* admin does not want a fail-delay */
#define UNIX_NIS 17 /* wish to use NIS for pwd */
#define UNIX_BIGCRYPT 18 /* use DEC-C2 crypt()^x function */
#define UNIX_LIKE_AUTH 19 /* need to auth for setcred to work */
#define UNIX_REMEMBER_PASSWD 20 /* Remember N previous passwords */
#define UNIX_NOREAP 21 /* don't reap child process */
#define UNIX_BROKEN_SHADOW 22 /* ignore errors reading password aging
* information during acct management */
#define UNIX_SHA256_PASS 23 /* new password hashes will use SHA256 */
#define UNIX_SHA512_PASS 24 /* new password hashes will use SHA512 */
#define UNIX_ALGO_ROUNDS 25 /* optional number of rounds for new
password hash algorithms */
#define UNIX_BLOWFISH_PASS 26 /* new password hashes will use blowfish */
#define UNIX_MIN_PASS_LEN 27 /* min length for password */
#define UNIX_QUIET 28 /* Don't print informational messages */
#define UNIX_NO_PASS_EXPIRY 29 /* Don't check for password expiration if not used for authentication */
#define UNIX_DES 30 /* DES, default */
#define UNIX_GOST_YESCRYPT_PASS 31 /* new password hashes will use gost-yescrypt */
#define UNIX_YESCRYPT_PASS 32 /* new password hashes will use yescrypt */
#define UNIX_NULLRESETOK 33 /* allow empty password if password reset is enforced */
/* -------------- */
#define UNIX_CTRLS_ 34 /* number of ctrl arguments defined */
#define UNIX_DES_CRYPT(ctrl) (off(UNIX_MD5_PASS,ctrl)&&off(UNIX_BIGCRYPT,ctrl)&&off(UNIX_SHA256_PASS,ctrl)&&off(UNIX_SHA512_PASS,ctrl)&&off(UNIX_BLOWFISH_PASS,ctrl)&&off(UNIX_GOST_YESCRYPT_PASS,ctrl)&&off(UNIX_YESCRYPT_PASS,ctrl))
static const UNIX_Ctrls unix_args[UNIX_CTRLS_] =
{
/* symbol token name ctrl mask ctrl *
* --------------------------- -------------------- ------------------------- ---------------- */
/* UNIX__OLD_PASSWD */ {NULL, _ALL_ON_, 01, 0},
/* UNIX__VERIFY_PASSWD */ {NULL, _ALL_ON_, 02, 0},
/* UNIX__IAMROOT */ {NULL, _ALL_ON_, 04, 0},
/* UNIX_AUDIT */ {"audit", _ALL_ON_, 010, 0},
/* UNIX_USE_FIRST_PASS */ {"use_first_pass", _ALL_ON_^(060ULL), 020, 0},
/* UNIX_TRY_FIRST_PASS */ {"try_first_pass", _ALL_ON_^(060ULL), 040, 0},
/* UNIX_AUTHTOK_TYPE */ {"authtok_type=", _ALL_ON_, 0100, 0},
/* UNIX__PRELIM */ {NULL, _ALL_ON_^(0600ULL), 0200, 0},
/* UNIX__UPDATE */ {NULL, _ALL_ON_^(0600ULL), 0400, 0},
/* UNIX__NONULL */ {NULL, _ALL_ON_, 01000, 0},
/* UNIX__QUIET */ {NULL, _ALL_ON_, 02000, 0},
/* UNIX_USE_AUTHTOK */ {"use_authtok", _ALL_ON_, 04000, 0},
/* UNIX_SHADOW */ {"shadow", _ALL_ON_, 010000, 0},
/* UNIX_MD5_PASS */ {"md5", _ALL_ON_^(015660420000ULL), 020000, 1},
/* UNIX__NULLOK */ {"nullok", _ALL_ON_^(01000ULL), 0, 0},
/* UNIX_DEBUG */ {"debug", _ALL_ON_, 040000, 0},
/* UNIX_NODELAY */ {"nodelay", _ALL_ON_, 0100000, 0},
/* UNIX_NIS */ {"nis", _ALL_ON_, 0200000, 0},
/* UNIX_BIGCRYPT */ {"bigcrypt", _ALL_ON_^(015660420000ULL), 0400000, 1},
/* UNIX_LIKE_AUTH */ {"likeauth", _ALL_ON_, 01000000, 0},
/* UNIX_REMEMBER_PASSWD */ {"remember=", _ALL_ON_, 02000000, 0},
/* UNIX_NOREAP */ {"noreap", _ALL_ON_, 04000000, 0},
/* UNIX_BROKEN_SHADOW */ {"broken_shadow", _ALL_ON_, 010000000, 0},
/* UNIX_SHA256_PASS */ {"sha256", _ALL_ON_^(015660420000ULL), 020000000, 1},
/* UNIX_SHA512_PASS */ {"sha512", _ALL_ON_^(015660420000ULL), 040000000, 1},
/* UNIX_ALGO_ROUNDS */ {"rounds=", _ALL_ON_, 0100000000, 0},
/* UNIX_BLOWFISH_PASS */ {"blowfish", _ALL_ON_^(015660420000ULL), 0200000000, 1},
/* UNIX_MIN_PASS_LEN */ {"minlen=", _ALL_ON_, 0400000000, 0},
/* UNIX_QUIET */ {"quiet", _ALL_ON_, 01000000000, 0},
/* UNIX_NO_PASS_EXPIRY */ {"no_pass_expiry", _ALL_ON_, 02000000000, 0},
/* UNIX_DES */ {"des", _ALL_ON_^(015660420000ULL), 0, 1},
/* UNIX_GOST_YESCRYPT_PASS */ {"gost_yescrypt", _ALL_ON_^(015660420000ULL), 04000000000, 1},
/* UNIX_YESCRYPT_PASS */ {"yescrypt", _ALL_ON_^(015660420000ULL), 010000000000, 1},
/* UNIX_NULLRESETOK */ {"nullresetok", _ALL_ON_, 020000000000, 0},
};
#define UNIX_DEFAULTS (unix_args[UNIX__NONULL].flag)
/* use this to free strings. ESPECIALLY password strings */
#define _pam_delete(xx) \
{ \
_pam_overwrite(xx); \
_pam_drop(xx); \
}
extern int _make_remark(pam_handle_t * pamh, unsigned long long ctrl,
int type, const char *text);
extern unsigned long long _set_ctrl(pam_handle_t * pamh, int flags,
int *remember, int *rounds,
int *pass_min_len,
int argc, const char **argv);
extern int _unix_getpwnam (pam_handle_t *pamh,
const char *name, int files, int nis,
struct passwd **ret);
extern int _unix_comesfromsource (pam_handle_t *pamh,
const char *name, int files, int nis);
extern int _unix_blankpasswd(pam_handle_t *pamh, unsigned long long ctrl,
const char *name);
extern int _unix_verify_password(pam_handle_t * pamh, const char *name,
const char *p, unsigned long long ctrl);
extern int _unix_verify_user(pam_handle_t *pamh, unsigned long long ctrl,
const char *name, int *daysleft);
extern int _unix_run_verify_binary(pam_handle_t *pamh,
unsigned long long ctrl,
const char *user, int *daysleft);
#endif /* _PAM_UNIX_SUPPORT_H */