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include/env_flags.h
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/* * (C) Copyright 2012 * Joe Hershberger, National Instruments, joe.hershberger@ni.com * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef __ENV_FLAGS_H__ #define __ENV_FLAGS_H__ enum env_flags_vartype { env_flags_vartype_string, env_flags_vartype_decimal, env_flags_vartype_hex, env_flags_vartype_bool, #ifdef CONFIG_CMD_NET env_flags_vartype_ipaddr, env_flags_vartype_macaddr, #endif env_flags_vartype_end }; enum env_flags_varaccess { env_flags_varaccess_any, env_flags_varaccess_readonly, env_flags_varaccess_writeonce, env_flags_varaccess_changedefault, env_flags_varaccess_end }; #define ENV_FLAGS_VAR ".flags" #define ENV_FLAGS_ATTR_MAX_LEN 2 #define ENV_FLAGS_VARTYPE_LOC 0 #define ENV_FLAGS_VARACCESS_LOC 1 #ifndef CONFIG_ENV_FLAGS_LIST_STATIC #define CONFIG_ENV_FLAGS_LIST_STATIC "" #endif #ifdef CONFIG_CMD_NET #ifdef CONFIG_REGEX #define ETHADDR_WILDCARD "\\d?" #else #define ETHADDR_WILDCARD #endif #ifdef CONFIG_ENV_OVERWRITE #define ETHADDR_FLAGS "eth" ETHADDR_WILDCARD "addr:ma," #else #ifdef CONFIG_OVERWRITE_ETHADDR_ONCE #define ETHADDR_FLAGS "eth" ETHADDR_WILDCARD "addr:mc," #else #define ETHADDR_FLAGS "eth" ETHADDR_WILDCARD "addr:mo," #endif #endif #define NET_FLAGS \ "ipaddr:i," \ "gatewayip:i," \ "netmask:i," \ "serverip:i," \ "nvlan:d," \ "vlan:d," \ "dnsip:i," #else #define ETHADDR_FLAGS #define NET_FLAGS #endif #ifndef CONFIG_ENV_OVERWRITE #define SERIAL_FLAGS "serial#:so," #else #define SERIAL_FLAGS "" #endif #define ENV_FLAGS_LIST_STATIC \ ETHADDR_FLAGS \ NET_FLAGS \ SERIAL_FLAGS \ CONFIG_ENV_FLAGS_LIST_STATIC #ifdef CONFIG_CMD_ENV_FLAGS /* * Print the whole list of available type flags. */ void env_flags_print_vartypes(void); /* * Print the whole list of available access flags. */ void env_flags_print_varaccess(void); /* * Return the name of the type. */ const char *env_flags_get_vartype_name(enum env_flags_vartype type); /* * Return the name of the access. */ const char *env_flags_get_varaccess_name(enum env_flags_varaccess access); #endif /* * Parse the flags string from a .flags attribute list into the vartype enum. */ enum env_flags_vartype env_flags_parse_vartype(const char *flags); /* * Parse the flags string from a .flags attribute list into the varaccess enum. */ enum env_flags_varaccess env_flags_parse_varaccess(const char *flags); /* * Parse the binary flags from a hash table entry into the varaccess enum. */ enum env_flags_varaccess env_flags_parse_varaccess_from_binflags(int binflags); #ifdef CONFIG_CMD_NET /* * Check if a string has the format of an Ethernet MAC address */ int eth_validate_ethaddr_str(const char *addr); #endif #ifdef USE_HOSTCC /* * Look up the type of a variable directly from the .flags var. */ enum env_flags_vartype env_flags_get_type(const char *name); /* * Look up the access of a variable directly from the .flags var. */ enum env_flags_varaccess env_flags_get_access(const char *name); /* * Validate the newval for its type to conform with the requirements defined by * its flags (directly looked at the .flags var). */ int env_flags_validate_type(const char *name, const char *newval); /* * Validate the newval for its access to conform with the requirements defined * by its flags (directly looked at the .flags var). */ int env_flags_validate_access(const char *name, int check_mask); /* * Validate that the proposed access to variable "name" is valid according to * the defined flags for that variable, if any. */ int env_flags_validate_varaccess(const char *name, int check_mask); /* * Validate the parameters passed to "env set" for type compliance */ int env_flags_validate_env_set_params(char *name, char *const val[], int count); #else /* !USE_HOSTCC */ #include <search.h> /* * When adding a variable to the environment, initialize the flags for that * variable. */ void env_flags_init(ENTRY *var_entry); /* * Validate the newval for to conform with the requirements defined by its flags */ int env_flags_validate(const ENTRY *item, const char *newval, enum env_op op, int flag); #endif /* USE_HOSTCC */ /* * These are the binary flags used in the environment entry->flags variable to * decribe properties of veriables in the table */ #define ENV_FLAGS_VARTYPE_BIN_MASK 0x00000007 /* The actual variable type values use the enum value (within the mask) */ #define ENV_FLAGS_VARACCESS_PREVENT_DELETE 0x00000008 #define ENV_FLAGS_VARACCESS_PREVENT_CREATE 0x00000010 #define ENV_FLAGS_VARACCESS_PREVENT_OVERWR 0x00000020 #define ENV_FLAGS_VARACCESS_PREVENT_NONDEF_OVERWR 0x00000040 #define ENV_FLAGS_VARACCESS_BIN_MASK 0x00000078 #endif /* __ENV_FLAGS_H__ */ |