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