/* * Copyright (c) 1993-1996, 1998-2005, 2007-2009 * Todd C. Miller * * 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 #include #include "compat.h" #include "defaults.h" #include "error.h" /* XXX */ #include "alloc.h" /* XXX */ #include "list.h" #include "logging.h" #include "missing.h" #include "sudo_nss.h" #include "sudo_plugin.h" #ifdef HAVE_MBR_CHECK_MEMBERSHIP # include #endif /* * 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; char *display; char *askpass; int ngroups; uid_t uid; uid_t gid; int lines; int cols; GETGROUPS_T *groups; struct list_member *env_vars; #ifdef HAVE_SELINUX char *role; char *type; #endif char *cwd; char sessid[7]; #ifdef HAVE_MBR_CHECK_MEMBERSHIP uuid_t uuid; #endif }; /* * 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 #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_FULL_RUNAS 0x06 #define PERM_TIMESTAMP 0x07 #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_ngroups (sudo_user.ngroups) #define user_groups (sudo_user.groups) #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 user_display (sudo_user.display) #define user_askpass (sudo_user.askpass) #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) /* * 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 /* * Flags for lock_file() */ #define SUDO_LOCK 1 /* lock a file */ #define SUDO_TLOCK 2 /* test & lock a file (non-blocking) */ #define SUDO_UNLOCK 4 /* unlock a file */ #if 0 /* XXX */ /* * Flags for tgetpass() */ #define TGP_ECHO 0x01 /* leave echo on when reading passwd */ #define TGP_STDIN 0x02 /* read from stdin, not /dev/tty */ #define TGP_ASKPASS 0x04 /* read from askpass helper program */ #endif struct lbuf; struct passwd; /* * Function prototypes */ #define YY_DECL int yylex(void) char *sudo_goodpath(const char *, struct stat *); int find_path(char *, char **, struct stat *, char *); int tty_present(void); int check_user(int, int); int verify_user(struct passwd *, char *); #ifdef HAVE_LDAP int sudo_ldap_open(struct sudo_nss *); int sudo_ldap_close(struct sudo_nss *); int sudo_ldap_setdefs(struct sudo_nss *); int sudo_ldap_lookup(struct sudo_nss *, int, int); int sudo_ldap_parse(struct sudo_nss *); int sudo_ldap_display_cmnd(struct sudo_nss *, struct passwd *); int sudo_ldap_display_defaults(struct sudo_nss *, struct passwd *, struct lbuf *); int sudo_ldap_display_bound_defaults(struct sudo_nss *, struct passwd *, struct lbuf *); int sudo_ldap_display_privs(struct sudo_nss *, struct passwd *, struct lbuf *); #endif 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 *); int set_perms(int); int restore_perms(void); void remove_timestamp(int); int check_secureware(char *); void sia_attempt_auth(void); void pam_attempt_auth(void); int yyparse(void); void pass_warn(void); void dump_defaults(void); void dump_auth_methods(void); void init_envtables(void); void read_env_file(const char *, int); int lock_file(int, int); int touch(int, char *, struct timespec *); int user_is_exempt(void); void set_fqdn(void); char *sudo_getepw(const struct passwd *); int pam_prep_user(struct passwd *); void zero_bytes(volatile void *, size_t); int gettime(struct timespec *); FILE *open_sudoers(const char *, int, int *); void display_privs(struct sudo_nss_list *, struct passwd *); int display_cmnd(struct sudo_nss_list *, struct passwd *); int get_ttycols(void); char *sudo_parseln(FILE *); void sudo_setgrent(void); void sudo_endgrent(void); void sudo_setpwent(void); void sudo_endpwent(void); void sudo_setspent(void); void sudo_endspent(void); void cleanup(int); struct passwd *sudo_getpwnam(const char *); 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); #ifdef HAVE_SELINUX void selinux_exec(char *, char *, char **); void selinux_execv(char *, char **); void selinux_prefork(char *, char *, int); #endif #ifdef HAVE_GETUSERATTR void aix_setlimits(char *); #endif int script_duplow(int); int script_execv(char *, char **); void script_nextid(void); void script_setup(void); int term_cbreak(int); int term_copy(int, int, int); int term_noecho(int); int term_raw(int, int, int); int term_restore(int, int); char *get_timestr(time_t, int); time_t get_boottime(void); int user_in_group(struct passwd *, const char *); YY_DECL; /* atobool.c */ int atobool(const char *str); /* iolog.c */ int sudoers_io_open(unsigned int version, sudo_conv_t conversation, char * const settings[], char * const user_info[], char * const user_env[]); void sudoers_io_close(int exit_status, int error); int sudoers_io_version(int verbose); int sudoers_io_log_output(const char *buf, unsigned int len); /* Only provide extern declarations outside of sudo.c. */ #ifndef _SUDO_MAIN extern struct sudo_user sudo_user; extern struct passwd *auth_pw, *list_pw; extern int tgetpass_flags; /* XXX */ extern int long_list; extern uid_t timestamp_uid; extern sudo_conv_t sudo_conv; #endif #ifndef errno extern int errno; #endif #endif /* _SUDO_SUDOERS_H */