1 /* 2 * (C) Copyright 2002-2008 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <aes.h> 9 #include <stdint.h> 10 11 /* Pull in the current config to define the default environment */ 12 #include <linux/kconfig.h> 13 14 #ifndef __ASSEMBLY__ 15 #define __ASSEMBLY__ /* get only #defines from config.h */ 16 #include <config.h> 17 #undef __ASSEMBLY__ 18 #else 19 #include <config.h> 20 #endif 21 22 /* 23 * To build the utility with the static configuration 24 * comment out the next line. 25 * See included "fw_env.config" sample file 26 * for notes on configuration. 27 */ 28 #define CONFIG_FILE "/etc/fw_env.config" 29 30 #ifndef CONFIG_FILE 31 #define HAVE_REDUND /* For systems with 2 env sectors */ 32 #define DEVICE1_NAME "/dev/mtd1" 33 #define DEVICE2_NAME "/dev/mtd2" 34 #define DEVICE1_OFFSET 0x0000 35 #define ENV1_SIZE 0x4000 36 #define DEVICE1_ESIZE 0x4000 37 #define DEVICE1_ENVSECTORS 2 38 #define DEVICE2_OFFSET 0x0000 39 #define ENV2_SIZE 0x4000 40 #define DEVICE2_ESIZE 0x4000 41 #define DEVICE2_ENVSECTORS 2 42 #endif 43 44 #ifndef CONFIG_BAUDRATE 45 #define CONFIG_BAUDRATE 115200 46 #endif 47 48 #ifndef CONFIG_BOOTDELAY 49 #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */ 50 #endif 51 52 #ifndef CONFIG_BOOTCOMMAND 53 #define CONFIG_BOOTCOMMAND \ 54 "bootp; " \ 55 "setenv bootargs root=/dev/nfs nfsroot=${serverip}:${rootpath} " \ 56 "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; " \ 57 "bootm" 58 #endif 59 60 struct env_opts { 61 #ifdef CONFIG_FILE 62 char *config_file; 63 #endif 64 int aes_flag; /* Is AES encryption used? */ 65 uint8_t aes_key[AES_KEY_LENGTH]; 66 }; 67 68 int parse_aes_key(char *key, uint8_t *bin_key); 69 70 int fw_printenv(int argc, char *argv[], int value_only, struct env_opts *opts); 71 char *fw_getenv(char *name); 72 int fw_setenv(int argc, char *argv[], struct env_opts *opts); 73 int fw_parse_script(char *fname, struct env_opts *opts); 74 int fw_env_open(struct env_opts *opts); 75 int fw_env_write(char *name, char *value); 76 int fw_env_close(struct env_opts *opts); 77 78 unsigned long crc32(unsigned long, const unsigned char *, unsigned); 79