1 /* SPDX-License-Identifier: GPL-2.0+ */
4 * Joe Hershberger, National Instruments, joe.hershberger@ni.com
7 #ifndef __ENV_FLAGS_H__
8 #define __ENV_FLAGS_H__
10 enum env_flags_vartype {
11 env_flags_vartype_string,
12 env_flags_vartype_decimal,
13 env_flags_vartype_hex,
14 env_flags_vartype_bool,
16 env_flags_vartype_ipaddr,
17 env_flags_vartype_macaddr,
22 enum env_flags_varaccess {
23 env_flags_varaccess_any,
24 env_flags_varaccess_readonly,
25 env_flags_varaccess_writeonce,
26 env_flags_varaccess_changedefault,
27 env_flags_varaccess_end
30 #define ENV_FLAGS_VAR ".flags"
31 #define ENV_FLAGS_ATTR_MAX_LEN 2
32 #define ENV_FLAGS_VARTYPE_LOC 0
33 #define ENV_FLAGS_VARACCESS_LOC 1
35 #ifndef CONFIG_ENV_FLAGS_LIST_STATIC
36 #define CONFIG_ENV_FLAGS_LIST_STATIC ""
41 #define ETHADDR_WILDCARD "\\d*"
43 #define ETHADDR_WILDCARD
45 #ifdef CONFIG_ENV_OVERWRITE
46 #define ETHADDR_FLAGS "eth" ETHADDR_WILDCARD "addr:ma,"
48 #ifdef CONFIG_OVERWRITE_ETHADDR_ONCE
49 #define ETHADDR_FLAGS "eth" ETHADDR_WILDCARD "addr:mc,"
51 #define ETHADDR_FLAGS "eth" ETHADDR_WILDCARD "addr:mo,"
67 #ifndef CONFIG_ENV_OVERWRITE
68 #define SERIAL_FLAGS "serial#:so,"
70 #define SERIAL_FLAGS ""
73 #define ENV_FLAGS_LIST_STATIC \
77 CONFIG_ENV_FLAGS_LIST_STATIC
79 #ifdef CONFIG_CMD_ENV_FLAGS
81 * Print the whole list of available type flags.
83 void env_flags_print_vartypes(void);
85 * Print the whole list of available access flags.
87 void env_flags_print_varaccess(void);
89 * Return the name of the type.
91 const char *env_flags_get_vartype_name(enum env_flags_vartype type);
93 * Return the name of the access.
95 const char *env_flags_get_varaccess_name(enum env_flags_varaccess access);
99 * Parse the flags string from a .flags attribute list into the vartype enum.
101 enum env_flags_vartype env_flags_parse_vartype(const char *flags);
103 * Parse the flags string from a .flags attribute list into the varaccess enum.
105 enum env_flags_varaccess env_flags_parse_varaccess(const char *flags);
107 * Parse the binary flags from a hash table entry into the varaccess enum.
109 enum env_flags_varaccess env_flags_parse_varaccess_from_binflags(int binflags);
111 #ifdef CONFIG_CMD_NET
113 * Check if a string has the format of an Ethernet MAC address
115 int eth_validate_ethaddr_str(const char *addr);
120 * Look up the type of a variable directly from the .flags var.
122 enum env_flags_vartype env_flags_get_type(const char *name);
124 * Look up the access of a variable directly from the .flags var.
126 enum env_flags_varaccess env_flags_get_access(const char *name);
128 * Validate the newval for its type to conform with the requirements defined by
129 * its flags (directly looked at the .flags var).
131 int env_flags_validate_type(const char *name, const char *newval);
133 * Validate the newval for its access to conform with the requirements defined
134 * by its flags (directly looked at the .flags var).
136 int env_flags_validate_access(const char *name, int check_mask);
138 * Validate that the proposed access to variable "name" is valid according to
139 * the defined flags for that variable, if any.
141 int env_flags_validate_varaccess(const char *name, int check_mask);
143 * Validate the parameters passed to "env set" for type compliance
145 int env_flags_validate_env_set_params(char *name, char *const val[], int count);
147 #else /* !USE_HOSTCC */
153 * When adding a variable to the environment, initialize the flags for that
156 void env_flags_init(struct env_entry *var_entry);
159 * Validate the newval for to conform with the requirements defined by its flags
161 int env_flags_validate(const struct env_entry *item, const char *newval,
162 enum env_op op, int flag);
164 #endif /* USE_HOSTCC */
167 * These are the binary flags used in the environment entry->flags variable to
168 * decribe properties of veriables in the table
170 #define ENV_FLAGS_VARTYPE_BIN_MASK 0x00000007
171 /* The actual variable type values use the enum value (within the mask) */
172 #define ENV_FLAGS_VARACCESS_PREVENT_DELETE 0x00000008
173 #define ENV_FLAGS_VARACCESS_PREVENT_CREATE 0x00000010
174 #define ENV_FLAGS_VARACCESS_PREVENT_OVERWR 0x00000020
175 #define ENV_FLAGS_VARACCESS_PREVENT_NONDEF_OVERWR 0x00000040
176 #define ENV_FLAGS_VARACCESS_BIN_MASK 0x00000078
178 #endif /* __ENV_FLAGS_H__ */