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#ifndef REG_DB_H
#define REG_DB_H
#include <stdint.h>
/*
* WARNING: This file needs to be kept in sync with
* - the parser (dbparse.py)
* - the generator code (db2bin.py)
*
* As it is only Linux is using these so we have a direct one to
* one map for flags. Each respective OS flag is listed where
* appropriate.
*/
/* spells "RGDB" */
#define REGDB_MAGIC 0x52474442
/*
* Only supported version now, start at arbitrary number
* to have some more magic. We still consider this to be
* "Version 1" of the file.
*/
#define REGDB_VERSION 19
/*
* The signature at the end of the file is an RSA-signed
* SHA-1 hash of the file.
*/
/* db file starts with a struct regdb_file_header */
struct regdb_file_header {
/* must be REGDB_MAGIC */
uint32_t magic;
/* must be REGDB_VERSION */
uint32_t version;
/*
* Pointer (offset) into file where country list starts
* and number of countries. The country list is sorted
* alphabetically to allow binary searching (should it
* become really huge). Each country is described by a
* struct regdb_file_reg_country.
*/
uint32_t reg_country_ptr;
uint32_t reg_country_num;
/* length (in bytes) of the signature at the end of the file */
uint32_t signature_length;
};
struct regdb_file_freq_range {
uint32_t start_freq, /* in kHz */
end_freq, /* in kHz */
max_bandwidth; /* in kHz */
};
/*
* Values of zero mean "not applicable", i.e. the regulatory
* does not limit a certain value.
*/
struct regdb_file_power_rule {
/* antenna gain is in mBi (100 * dBi) */
uint32_t max_antenna_gain;
/* this is in mBm (100 * dBm) */
uint32_t max_eirp;
};
/*
* The Linux map defined in <linux/uapi/nl80211.h> enum nl80211_reg_rule_flags
*/
enum reg_rule_flags {
RRF_NO_OFDM = 1<<0, /* OFDM modulation not allowed */
RRF_NO_CCK = 1<<1, /* CCK modulation not allowed */
RRF_NO_INDOOR = 1<<2, /* indoor operation not allowed */
RRF_NO_OUTDOOR = 1<<3, /* outdoor operation not allowed */
RRF_DFS = 1<<4, /* DFS support is required to be
* used */
RRF_PTP_ONLY = 1<<5, /* this is only for Point To Point
* links */
RRF_PTMP_ONLY = 1<<6, /* this is only for Point To Multi
* Point links */
RRF_NO_IR = 1<<7, /* do not initiate radiation */
__RRF_NO_IBSS = 1<<8, /* old no-IBSS rule, maps to no-ir */
RRF_AUTO_BW = 1<<11, /* Auto BW calculations */
};
#define RRF_NO_IR_ALL (RRF_NO_IR | __RRF_NO_IBSS)
/**
* enum regdb_dfs_regions - regulatory DFS regions
*
* @REGDB_DFS_UNSET: Country has no DFS master region specified
* @REGDB_DFS_FCC: Country follows DFS master rules from FCC
* @REGDB_DFS_ETSI: Country follows DFS master rules from ETSI
* @REGDB_DFS_JP: Country follows DFS master rules from JP/MKK/Telec
*/
enum regdb_dfs_regions {
REGDB_DFS_UNSET = 0,
REGDB_DFS_FCC = 1,
REGDB_DFS_ETSI = 2,
REGDB_DFS_JP = 3,
};
struct regdb_file_reg_rule {
/* pointers (offsets) into the file */
uint32_t freq_range_ptr; /* pointer to a struct regdb_file_freq_range */
uint32_t power_rule_ptr; /* pointer to a struct regdb_file_power_rule */
/* rule flags using enum reg_rule_flags */
uint32_t flags;
};
struct regdb_file_reg_rules_collection {
uint32_t reg_rule_num;
/* pointers (offsets) into the file. There are reg_rule_num elements
* in the reg_rule_ptrs array pointing to struct
* regdb_file_reg_rule */
uint32_t reg_rule_ptrs[];
};
struct regdb_file_reg_country {
uint8_t alpha2[2];
uint8_t PAD;
uint8_t creqs; /* first two bits define DFS region */
/* pointer (offset) into the file to a struct
* regdb_file_reg_rules_collection */
uint32_t reg_collection_ptr;
};
/*
* Verify that no unexpected padding is added to structures
* for some reason.
*/
#define ERROR_ON(cond) \
((void)sizeof(char[1 - 2*!!(cond)]))
#define CHECK_STRUCT(name, size) \
ERROR_ON(sizeof(struct name) != size)
static inline void check_db_binary_structs(void)
{
CHECK_STRUCT(regdb_file_header, 20);
CHECK_STRUCT(regdb_file_freq_range, 12);
CHECK_STRUCT(regdb_file_power_rule, 8);
CHECK_STRUCT(regdb_file_reg_rule, 12);
CHECK_STRUCT(regdb_file_reg_rules_collection, 4);
CHECK_STRUCT(regdb_file_reg_country, 8);
}
#endif
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