check_seapp.c

#include <stdio.h>
#include <stdarg.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <stdint.h>
#include <search.h>
#include <stdbool.h>
#include <sepol/sepol.h>
#include <sepol/policydb/policydb.h>

#define TABLE_SIZE 1024
#define KVP_NUM_OF_RULES (sizeof(rules) / sizeof(key_map))
#define log_set_verbose() do { logging_verbose = 1; log_info("Enabling verbose\n"); } while(0)
#define log_error(fmt, ...) log_msg(stderr, "Error: ", fmt, ##__VA_ARGS__)
#define log_warn(fmt, ...) log_msg(stderr, "Warning: ", fmt, ##__VA_ARGS__)
#define log_info(fmt, ...) if (logging_verbose ) { log_msg(stdout, "Info: ", fmt, ##__VA_ARGS__); }

typedef struct line_order_list line_order_list;
typedef struct hash_entry hash_entry;
typedef enum key_dir key_dir;
typedef enum data_type data_type;
typedef enum rule_map_switch rule_map_switch;
typedef enum map_match map_match;
typedef struct key_map key_map;
typedef struct kvp kvp;
typedef struct rule_map rule_map;
typedef struct policy_info policy_info;

enum map_match {
	map_no_matches,
	map_input_matched,
	map_matched
};

/**
 * Whether or not the "key" from a key vaue pair is considered an
 * input or an output.
 */
enum key_dir {
	dir_in, dir_out
};

/**
 * Used as options to rule_map_free()
 *
 * This is needed to get around the fact that GNU C's hash_map doesn't copy the key, so
 * we cannot free a key when overrding rule_map's in the table.
 */
enum rule_map_switch {
	rule_map_preserve_key, /** Used to preserve the key in the rule_map, ie don't free it*/
	rule_map_destroy_key   /** Used when you need a full free of the rule_map structure*/
};

/**
 * The expected "type" of data the value in the key
 * value pair should be.
 */
enum data_type {
	dt_bool, dt_string
};

/**
 * This list is used to store a double pointer to each
 * hash table / line rule combination. This way a replacement
 * in the hash table automatically updates the list. The list
 * is also used to keep "first encountered" ordering amongst