Annotation of embedaddon/sudo/plugins/sudoers/sudoers.h, revision 1.1
1.1 ! misho 1: /*
! 2: * Copyright (c) 1993-1996, 1998-2005, 2007-2011
! 3: * Todd C. Miller <Todd.Miller@courtesan.com>
! 4: *
! 5: * Permission to use, copy, modify, and distribute this software for any
! 6: * purpose with or without fee is hereby granted, provided that the above
! 7: * copyright notice and this permission notice appear in all copies.
! 8: *
! 9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
! 15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 16: *
! 17: * Sponsored in part by the Defense Advanced Research Projects
! 18: * Agency (DARPA) and Air Force Research Laboratory, Air Force
! 19: * Materiel Command, USAF, under agreement number F39502-99-1-0512.
! 20: */
! 21:
! 22: #ifndef _SUDO_SUDOERS_H
! 23: #define _SUDO_SUDOERS_H
! 24:
! 25: #include <limits.h>
! 26:
! 27: #include <pathnames.h>
! 28: #include "missing.h"
! 29: #include "error.h"
! 30: #include "alloc.h"
! 31: #include "list.h"
! 32: #include "fileops.h"
! 33: #include "defaults.h"
! 34: #include "logging.h"
! 35: #include "sudo_nss.h"
! 36: #include "sudo_plugin.h"
! 37:
! 38: #define DEFAULT_TEXT_DOMAIN "sudoers"
! 39: #include "gettext.h"
! 40:
! 41: /*
! 42: * Password db and supplementary group IDs with associated group names.
! 43: */
! 44: struct group_list {
! 45: char **groups;
! 46: GETGROUPS_T *gids;
! 47: int ngroups;
! 48: int ngids;
! 49: };
! 50:
! 51: /*
! 52: * Info pertaining to the invoking user.
! 53: */
! 54: struct sudo_user {
! 55: struct passwd *pw;
! 56: struct passwd *_runas_pw;
! 57: struct group *_runas_gr;
! 58: struct stat *cmnd_stat;
! 59: char *name;
! 60: char *path;
! 61: char *tty;
! 62: char *ttypath;
! 63: char *host;
! 64: char *shost;
! 65: char *prompt;
! 66: char *cmnd;
! 67: char *cmnd_args;
! 68: char *cmnd_base;
! 69: char *cmnd_safe;
! 70: char *class_name;
! 71: char *krb5_ccname;
! 72: struct group_list *group_list;
! 73: char * const * env_vars;
! 74: #ifdef HAVE_SELINUX
! 75: char *role;
! 76: char *type;
! 77: #endif
! 78: char *cwd;
! 79: char *iolog_file;
! 80: int closefrom;
! 81: int lines;
! 82: int cols;
! 83: uid_t uid;
! 84: uid_t gid;
! 85: };
! 86:
! 87: /*
! 88: * Return values for sudoers_lookup(), also used as arguments for log_auth()
! 89: * Note: cannot use '0' as a value here.
! 90: */
! 91: /* XXX - VALIDATE_SUCCESS and VALIDATE_FAILURE instead? */
! 92: #define VALIDATE_ERROR 0x001
! 93: #define VALIDATE_OK 0x002
! 94: #define VALIDATE_NOT_OK 0x004
! 95: #define FLAG_CHECK_USER 0x010
! 96: #define FLAG_NO_USER 0x020
! 97: #define FLAG_NO_HOST 0x040
! 98: #define FLAG_NO_CHECK 0x080
! 99:
! 100: /*
! 101: * Pseudo-boolean values
! 102: */
! 103: #undef TRUE
! 104: #define TRUE 1
! 105: #undef FALSE
! 106: #define FALSE 0
! 107:
! 108: /*
! 109: * find_path()/load_cmnd() return values
! 110: */
! 111: #define FOUND 0
! 112: #define NOT_FOUND 1
! 113: #define NOT_FOUND_DOT 2
! 114:
! 115: /*
! 116: * Various modes sudo can be in (based on arguments) in hex
! 117: */
! 118: #define MODE_RUN 0x00000001
! 119: #define MODE_EDIT 0x00000002
! 120: #define MODE_VALIDATE 0x00000004
! 121: #define MODE_INVALIDATE 0x00000008
! 122: #define MODE_KILL 0x00000010
! 123: #define MODE_VERSION 0x00000020
! 124: #define MODE_HELP 0x00000040
! 125: #define MODE_LIST 0x00000080
! 126: #define MODE_CHECK 0x00000100
! 127: #define MODE_LISTDEFS 0x00000200
! 128: #define MODE_MASK 0x0000ffff
! 129:
! 130: /* Mode flags */
! 131: #define MODE_BACKGROUND 0x00010000 /* XXX - unused */
! 132: #define MODE_SHELL 0x00020000
! 133: #define MODE_LOGIN_SHELL 0x00040000
! 134: #define MODE_IMPLIED_SHELL 0x00080000
! 135: #define MODE_RESET_HOME 0x00100000
! 136: #define MODE_PRESERVE_GROUPS 0x00200000
! 137: #define MODE_PRESERVE_ENV 0x00400000
! 138: #define MODE_NONINTERACTIVE 0x00800000
! 139: #define MODE_IGNORE_TICKET 0x01000000
! 140:
! 141: /*
! 142: * Used with set_perms()
! 143: */
! 144: #define PERM_INITIAL 0x00
! 145: #define PERM_ROOT 0x01
! 146: #define PERM_USER 0x02
! 147: #define PERM_FULL_USER 0x03
! 148: #define PERM_SUDOERS 0x04
! 149: #define PERM_RUNAS 0x05
! 150: #define PERM_TIMESTAMP 0x06
! 151: #define PERM_NOEXIT 0x10 /* flag */
! 152: #define PERM_MASK 0xf0
! 153:
! 154: /*
! 155: * Shortcuts for sudo_user contents.
! 156: */
! 157: #define user_name (sudo_user.name)
! 158: #define user_uid (sudo_user.uid)
! 159: #define user_gid (sudo_user.gid)
! 160: #define user_passwd (sudo_user.pw->pw_passwd)
! 161: #define user_uuid (sudo_user.uuid)
! 162: #define user_dir (sudo_user.pw->pw_dir)
! 163: #define user_group_list (sudo_user.group_list)
! 164: #define user_tty (sudo_user.tty)
! 165: #define user_ttypath (sudo_user.ttypath)
! 166: #define user_cwd (sudo_user.cwd)
! 167: #define user_cmnd (sudo_user.cmnd)
! 168: #define user_args (sudo_user.cmnd_args)
! 169: #define user_base (sudo_user.cmnd_base)
! 170: #define user_stat (sudo_user.cmnd_stat)
! 171: #define user_path (sudo_user.path)
! 172: #define user_prompt (sudo_user.prompt)
! 173: #define user_host (sudo_user.host)
! 174: #define user_shost (sudo_user.shost)
! 175: #define user_ccname (sudo_user.krb5_ccname)
! 176: #define safe_cmnd (sudo_user.cmnd_safe)
! 177: #define login_class (sudo_user.class_name)
! 178: #define runas_pw (sudo_user._runas_pw)
! 179: #define runas_gr (sudo_user._runas_gr)
! 180: #define user_role (sudo_user.role)
! 181: #define user_type (sudo_user.type)
! 182: #define user_closefrom (sudo_user.closefrom)
! 183:
! 184: #ifdef __TANDEM
! 185: # define ROOT_UID 65535
! 186: #else
! 187: # define ROOT_UID 0
! 188: #endif
! 189:
! 190: /*
! 191: * We used to use the system definition of PASS_MAX or _PASSWD_LEN,
! 192: * but that caused problems with various alternate authentication
! 193: * methods. So, we just define our own and assume that it is >= the
! 194: * system max.
! 195: */
! 196: #define SUDO_PASS_MAX 256
! 197:
! 198: struct lbuf;
! 199: struct passwd;
! 200: struct stat;
! 201: struct timeval;
! 202:
! 203: /*
! 204: * Function prototypes
! 205: */
! 206: #define YY_DECL int yylex(void)
! 207:
! 208: /* goodpath.c */
! 209: char *sudo_goodpath(const char *, struct stat *);
! 210:
! 211: /* findpath.c */
! 212: int find_path(char *, char **, struct stat *, char *, int);
! 213:
! 214: /* check.c */
! 215: int check_user(int, int);
! 216: void remove_timestamp(int);
! 217: int user_is_exempt(void);
! 218:
! 219: /* sudo_auth.c */
! 220: int verify_user(struct passwd *, char *);
! 221: int sudo_auth_begin_session(struct passwd *);
! 222: int sudo_auth_end_session(struct passwd *);
! 223: int sudo_auth_init(struct passwd *pw);
! 224: int sudo_auth_cleanup(struct passwd *pw);
! 225:
! 226: /* parse.c */
! 227: int sudo_file_open(struct sudo_nss *);
! 228: int sudo_file_close(struct sudo_nss *);
! 229: int sudo_file_setdefs(struct sudo_nss *);
! 230: int sudo_file_lookup(struct sudo_nss *, int, int);
! 231: int sudo_file_parse(struct sudo_nss *);
! 232: int sudo_file_display_cmnd(struct sudo_nss *, struct passwd *);
! 233: int sudo_file_display_defaults(struct sudo_nss *, struct passwd *, struct lbuf *);
! 234: int sudo_file_display_bound_defaults(struct sudo_nss *, struct passwd *, struct lbuf *);
! 235: int sudo_file_display_privs(struct sudo_nss *, struct passwd *, struct lbuf *);
! 236:
! 237: /* set_perms.c */
! 238: void rewind_perms(void);
! 239: int set_perms(int);
! 240: void restore_perms(void);
! 241: int pam_prep_user(struct passwd *);
! 242:
! 243: /* gram.y */
! 244: int yyparse(void);
! 245:
! 246: /* toke.l */
! 247: YY_DECL;
! 248:
! 249: /* defaults.c */
! 250: void dump_defaults(void);
! 251: void dump_auth_methods(void);
! 252:
! 253: /* getspwuid.c */
! 254: char *sudo_getepw(const struct passwd *);
! 255:
! 256: /* zero_bytes.c */
! 257: void zero_bytes(volatile void *, size_t);
! 258:
! 259: /* sudo_nss.c */
! 260: void display_privs(struct sudo_nss_list *, struct passwd *);
! 261: int display_cmnd(struct sudo_nss_list *, struct passwd *);
! 262:
! 263: /* pwutil.c */
! 264: void sudo_setgrent(void);
! 265: void sudo_endgrent(void);
! 266: void sudo_setpwent(void);
! 267: void sudo_endpwent(void);
! 268: void sudo_setspent(void);
! 269: void sudo_endspent(void);
! 270: struct group_list *get_group_list(struct passwd *pw);
! 271: void set_group_list(const char *, GETGROUPS_T *gids, int ngids);
! 272: struct passwd *sudo_getpwnam(const char *);
! 273: struct passwd *sudo_fakepwnamid(const char *user, uid_t uid, gid_t gid);
! 274: struct passwd *sudo_fakepwnam(const char *, gid_t);
! 275: struct passwd *sudo_getpwuid(uid_t);
! 276: struct group *sudo_getgrnam(const char *);
! 277: struct group *sudo_fakegrnam(const char *);
! 278: struct group *sudo_getgrgid(gid_t);
! 279: void grlist_addref(struct group_list *);
! 280: void grlist_delref(struct group_list *);
! 281: void gr_addref(struct group *);
! 282: void gr_delref(struct group *);
! 283: void pw_addref(struct passwd *);
! 284: void pw_delref(struct passwd *);
! 285: int user_in_group(struct passwd *, const char *);
! 286:
! 287: /* timestr.c */
! 288: char *get_timestr(time_t, int);
! 289:
! 290: /* atobool.c */
! 291: int atobool(const char *str);
! 292:
! 293: /* boottime.c */
! 294: int get_boottime(struct timeval *);
! 295:
! 296: /* iolog.c */
! 297: void io_nextid(char *iolog_dir, char sessid[7]);
! 298:
! 299: /* iolog_path.c */
! 300: char *expand_iolog_path(const char *prefix, const char *dir, const char *file,
! 301: char **slashp);
! 302:
! 303: /* env.c */
! 304: char **env_get(void);
! 305: void env_init(char * const envp[]);
! 306: void init_envtables(void);
! 307: void insert_env_vars(char * const envp[]);
! 308: void read_env_file(const char *, int);
! 309: void rebuild_env(void);
! 310: void validate_env_vars(char * const envp[]);
! 311:
! 312: /* fmt_string.c */
! 313: char *fmt_string(const char *, const char *);
! 314:
! 315: /* sudoers.c */
! 316: void plugin_cleanup(int);
! 317: void set_fqdn(void);
! 318: FILE *open_sudoers(const char *, int, int *);
! 319:
! 320: /* aix.c */
! 321: void aix_restoreauthdb(void);
! 322: void aix_setauthdb(char *user);
! 323:
! 324: /* group_plugin.c */
! 325: int group_plugin_load(char *plugin_info);
! 326: void group_plugin_unload(void);
! 327: int group_plugin_query(const char *user, const char *group,
! 328: const struct passwd *pwd);
! 329:
! 330: /* setgroups.c */
! 331: int sudo_setgroups(int ngids, const GETGROUPS_T *gids);
! 332:
! 333: #ifndef _SUDO_MAIN
! 334: extern struct sudo_user sudo_user;
! 335: extern struct passwd *list_pw;
! 336: extern const char *sudoers_file;
! 337: extern mode_t sudoers_mode;
! 338: extern uid_t sudoers_uid;
! 339: extern gid_t sudoers_gid;
! 340: extern int long_list;
! 341: extern int sudo_mode;
! 342: extern uid_t timestamp_uid;
! 343: extern sudo_conv_t sudo_conv;
! 344: extern sudo_printf_t sudo_printf;
! 345: #endif
! 346:
! 347: #endif /* _SUDO_SUDOERS_H */
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