sudo/plugins/sudoers/defaults.h

158 lines
4.2 KiB
C

/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 1999-2005, 2008-2023
* Todd C. Miller <Todd.Miller@sudo.ws>
*
* 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 SUDOERS_DEFAULTS_H
#define SUDOERS_DEFAULTS_H
#include <time.h>
#include <def_data.h>
#include <sudo_queue.h>
struct list_member {
SLIST_ENTRY(list_member) entries;
char *value;
};
SLIST_HEAD(list_members, list_member);
enum list_ops {
add,
delete,
freeall
};
/* Mapping of tuple string value to enum def_tuple. */
struct def_values {
const char *sval; /* string value */
enum def_tuple nval;/* numeric value */
};
union sudo_defs_val {
bool flag;
int ival;
unsigned int uival;
enum def_tuple tuple;
char *str;
mode_t mode;
struct timespec tspec;
struct list_members list;
};
/*
* Structure describing compile-time and run-time options.
*/
struct sudoers_context;
struct sudo_defs_types {
const char *name;
int type;
const char *desc;
struct def_values *values;
bool (*callback)(struct sudoers_context *ctx, const char *file, int line, int column, const union sudo_defs_val *, int op);
union sudo_defs_val sd_un;
};
/*
* Defaults values to apply before others.
*/
struct early_default {
int idx;
int run_callback;
int line;
int column;
char *file;
};
/*
* Four types of defaults: strings, integers, and flags.
* Also, T_INT, T_TIMESPEC or T_STR may be ANDed with T_BOOL to indicate that
* a value is not required. Flags are boolean by nature...
*/
#undef T_INT
#define T_INT 0x001
#undef T_UINT
#define T_UINT 0x002
#undef T_STR
#define T_STR 0x003
#undef T_FLAG
#define T_FLAG 0x004
#undef T_MODE
#define T_MODE 0x005
#undef T_LIST
#define T_LIST 0x006
#undef T_LOGFAC
#define T_LOGFAC 0x007
#undef T_LOGPRI
#define T_LOGPRI 0x008
#undef T_TUPLE
#define T_TUPLE 0x009
#undef T_TIMESPEC
#define T_TIMESPEC 0x010
#undef T_TIMEOUT
#define T_TIMEOUT 0x011
#undef T_RLIMIT
#define T_RLIMIT 0x012
#undef T_PLUGIN
#define T_PLUGIN 0x013
#undef T_MASK
#define T_MASK 0x0FF
#undef T_BOOL
#define T_BOOL 0x100
#undef T_PATH
#define T_PATH 0x200
#undef T_CHPATH
#define T_CHPATH 0x400
#undef T_SPACE
#define T_SPACE 0x800
/*
* Argument to update_defaults()
*/
#define SETDEF_GENERIC 0x01
#define SETDEF_HOST 0x02
#define SETDEF_USER 0x04
#define SETDEF_RUNAS 0x08
#define SETDEF_CMND 0x10
#define SETDEF_ALL (SETDEF_GENERIC|SETDEF_HOST|SETDEF_USER|SETDEF_RUNAS|SETDEF_CMND)
/*
* Convenience macros
*/
#define iolog_enabled (def_log_stdin || def_log_ttyin || def_log_stdout || def_log_stderr || def_log_ttyout)
/*
* Prototypes
*/
struct defaults_list;
struct sudoers_parse_tree;
void dump_default(void);
bool init_defaults(void);
bool set_default(struct sudoers_context *ctx, const char *var, const char *val, int op, const char *file, int line, int column, bool quiet);
bool update_defaults(struct sudoers_context *ctx, struct sudoers_parse_tree *parse_tree, const struct defaults_list *defs, int what, bool quiet);
bool check_defaults(const struct sudoers_parse_tree *parse_tree, bool quiet);
bool append_default(const char *var, const char *val, int op, char *source, struct defaults_list *defs);
bool cb_passprompt_regex(struct sudoers_context *ctx, const char *file, int line, int column, const union sudo_defs_val *sd_un, int op);
extern struct sudo_defs_types sudo_defs_table[];
#endif /* SUDOERS_DEFAULTS_H */