/*
* Copyright (c) 1993-1996, 1998-2005, 2007-2011
* Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F39502-99-1-0512.
*/
#ifndef _SUDO_SUDOERS_H
#define _SUDO_SUDOERS_H
#include <limits.h>
#include <pathnames.h>
#include "missing.h"
#include "error.h"
#include "alloc.h"
#include "list.h"
#include "fileops.h"
#include "defaults.h"
#include "logging.h"
#include "sudo_nss.h"
#include "sudo_plugin.h"
#define DEFAULT_TEXT_DOMAIN "sudoers"
#include "gettext.h"
/*
* Password db and supplementary group IDs with associated group names.
*/
struct group_list {
char **groups;
GETGROUPS_T *gids;
int ngroups;
int ngids;
};
/*
* Info pertaining to the invoking user.
*/
struct sudo_user {
struct passwd *pw;
struct passwd *_runas_pw;
struct group *_runas_gr;
struct stat *cmnd_stat;
char *name;
char *path;
char *tty;
char *ttypath;
char *host;
char *shost;
char *prompt;
char *cmnd;
char *cmnd_args;
char *cmnd_base;
char *cmnd_safe;
char *class_name;
char *krb5_ccname;
struct group_list *group_list;
char * const * env_vars;
#ifdef HAVE_SELINUX
char *role;
char *type;
#endif
char *cwd;
char *iolog_file;
int closefrom;
int lines;
int cols;
uid_t uid;
uid_t gid;
};
/*
* Return values for sudoers_lookup(), also used as arguments for log_auth()
* Note: cannot use '0' as a value here.
*/
/* XXX - VALIDATE_SUCCESS and VALIDATE_FAILURE instead? */
#define VALIDATE_ERROR 0x001
#define VALIDATE_OK 0x002
#define VALIDATE_NOT_OK 0x004
#define FLAG_CHECK_USER 0x010
#define FLAG_NO_USER 0x020
#define FLAG_NO_HOST 0x040
#define FLAG_NO_CHECK 0x080
/*
* Pseudo-boolean values
*/
#undef TRUE
#define TRUE 1
#undef FALSE
#define FALSE 0
/*
* find_path()/load_cmnd() return values
*/
#define FOUND 0
#define NOT_FOUND 1
#define NOT_FOUND_DOT 2
/*
* Various modes sudo can be in (based on arguments) in hex
*/
#define MODE_RUN 0x00000001
#define MODE_EDIT 0x00000002
#define MODE_VALIDATE 0x00000004
#define MODE_INVALIDATE 0x00000008
#define MODE_KILL 0x00000010
#define MODE_VERSION 0x00000020
#define MODE_HELP 0x00000040
#define MODE_LIST 0x00000080
#define MODE_CHECK 0x00000100
#define MODE_LISTDEFS 0x00000200
#define MODE_MASK 0x0000ffff
/* Mode flags */
#define MODE_BACKGROUND 0x00010000 /* XXX - unused */
#define MODE_SHELL 0x00020000
#define MODE_LOGIN_SHELL 0x00040000
#define MODE_IMPLIED_SHELL 0x00080000
#define MODE_RESET_HOME 0x00100000
#define MODE_PRESERVE_GROUPS 0x00200000
#define MODE_PRESERVE_ENV 0x00400000
#define MODE_NONINTERACTIVE 0x00800000
#define MODE_IGNORE_TICKET 0x01000000
/*
* Used with set_perms()
*/
#define PERM_INITIAL 0x00
#define PERM_ROOT 0x01
#define PERM_USER 0x02
#define PERM_FULL_USER 0x03
#define PERM_SUDOERS 0x04
#define PERM_RUNAS 0x05
#define PERM_TIMESTAMP 0x06
#define PERM_NOEXIT 0x10 /* flag */
#define PERM_MASK 0xf0
/*
* Shortcuts for sudo_user contents.
*/
#define user_name (sudo_user.name)
#define user_uid (sudo_user.uid)
#define user_gid (sudo_user.gid)
#define user_passwd (sudo_user.pw->pw_passwd)
#define user_uuid (sudo_user.uuid)
#define user_dir (sudo_user.pw->pw_dir)
#define user_group_list (sudo_user.group_list)
#define user_tty (sudo_user.tty)
#define user_ttypath (sudo_user.ttypath)
#define user_cwd (sudo_user.cwd)
#define user_cmnd (sudo_user.cmnd)
#define user_args (sudo_user.cmnd_args)
#define user_base (sudo_user.cmnd_base)
#define user_stat (sudo_user.cmnd_stat)
#define user_path (sudo_user.path)
#define user_prompt (sudo_user.prompt)
#define user_host (sudo_user.host)
#define user_shost (sudo_user.shost)
#define user_ccname (sudo_user.krb5_ccname)
#define safe_cmnd (sudo_user.cmnd_safe)
#define login_class (sudo_user.class_name)
#define runas_pw (sudo_user._runas_pw)
#define runas_gr (sudo_user._runas_gr)
#define user_role (sudo_user.role)
#define user_type (sudo_user.type)
#define user_closefrom (sudo_user.closefrom)
#ifdef __TANDEM
# define ROOT_UID 65535
#else
# define ROOT_UID 0
#endif
/*
* We used to use the system definition of PASS_MAX or _PASSWD_LEN,
* but that caused problems with various alternate authentication
* methods. So, we just define our own and assume that it is >= the
* system max.
*/
#define SUDO_PASS_MAX 256
struct lbuf;
struct passwd;
struct stat;
struct timeval;
/*
* Function prototypes
*/
#define YY_DECL int yylex(void)
/* goodpath.c */
char *sudo_goodpath(const char *, struct stat *);
/* findpath.c */
int find_path(char *, char **, struct stat *, char *, int);
/* check.c */
int check_user(int, int);
void remove_timestamp(int);
int user_is_exempt(void);
/* sudo_auth.c */
int verify_user(struct passwd *, char *);
int sudo_auth_begin_session(struct passwd *);
int sudo_auth_end_session(struct passwd *);
int sudo_auth_init(struct passwd *pw);
int sudo_auth_cleanup(struct passwd *pw);
/* parse.c */
int sudo_file_open(struct sudo_nss *);
int sudo_file_close(struct sudo_nss *);
int sudo_file_setdefs(struct sudo_nss *);
int sudo_file_lookup(struct sudo_nss *, int, int);
int sudo_file_parse(struct sudo_nss *);
int sudo_file_display_cmnd(struct sudo_nss *, struct passwd *);
int sudo_file_display_defaults(struct sudo_nss *, struct passwd *, struct lbuf *);
int sudo_file_display_bound_defaults(struct sudo_nss *, struct passwd *, struct lbuf *);
int sudo_file_display_privs(struct sudo_nss *, struct passwd *, struct lbuf *);
/* set_perms.c */
void rewind_perms(void);
int set_perms(int);
void restore_perms(void);
int pam_prep_user(struct passwd *);
/* gram.y */
int yyparse(void);
/* toke.l */
YY_DECL;
/* defaults.c */
void dump_defaults(void);
void dump_auth_methods(void);
/* getspwuid.c */
char *sudo_getepw(const struct passwd *);
/* zero_bytes.c */
void zero_bytes(volatile void *, size_t);
/* sudo_nss.c */
void display_privs(struct sudo_nss_list *, struct passwd *);
int display_cmnd(struct sudo_nss_list *, struct passwd *);
/* pwutil.c */
void sudo_setgrent(void);
void sudo_endgrent(void);
void sudo_setpwent(void);
void sudo_endpwent(void);
void sudo_setspent(void);
void sudo_endspent(void);
struct group_list *get_group_list(struct passwd *pw);
void set_group_list(const char *, GETGROUPS_T *gids, int ngids);
struct passwd *sudo_getpwnam(const char *);
struct passwd *sudo_fakepwnamid(const char *user, uid_t uid, gid_t gid);
struct passwd *sudo_fakepwnam(const char *, gid_t);
struct passwd *sudo_getpwuid(uid_t);
struct group *sudo_getgrnam(const char *);
struct group *sudo_fakegrnam(const char *);
struct group *sudo_getgrgid(gid_t);
void grlist_addref(struct group_list *);
void grlist_delref(struct group_list *);
void gr_addref(struct group *);
void gr_delref(struct group *);
void pw_addref(struct passwd *);
void pw_delref(struct passwd *);
int user_in_group(struct passwd *, const char *);
/* timestr.c */
char *get_timestr(time_t, int);
/* atobool.c */
int atobool(const char *str);
/* boottime.c */
int get_boottime(struct timeval *);
/* iolog.c */
void io_nextid(char *iolog_dir, char sessid[7]);
/* iolog_path.c */
char *expand_iolog_path(const char *prefix, const char *dir, const char *file,
char **slashp);
/* env.c */
char **env_get(void);
void env_init(char * const envp[]);
void init_envtables(void);
void insert_env_vars(char * const envp[]);
void read_env_file(const char *, int);
void rebuild_env(void);
void validate_env_vars(char * const envp[]);
/* fmt_string.c */
char *fmt_string(const char *, const char *);
/* sudoers.c */
void plugin_cleanup(int);
void set_fqdn(void);
FILE *open_sudoers(const char *, int, int *);
/* aix.c */
void aix_restoreauthdb(void);
void aix_setauthdb(char *user);
/* group_plugin.c */
int group_plugin_load(char *plugin_info);
void group_plugin_unload(void);
int group_plugin_query(const char *user, const char *group,
const struct passwd *pwd);
/* setgroups.c */
int sudo_setgroups(int ngids, const GETGROUPS_T *gids);
#ifndef _SUDO_MAIN
extern struct sudo_user sudo_user;
extern struct passwd *list_pw;
extern const char *sudoers_file;
extern mode_t sudoers_mode;
extern uid_t sudoers_uid;
extern gid_t sudoers_gid;
extern int long_list;
extern int sudo_mode;
extern uid_t timestamp_uid;
extern sudo_conv_t sudo_conv;
extern sudo_printf_t sudo_printf;
#endif
#endif /* _SUDO_SUDOERS_H */
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