Blame view
common/cli.c
5.43 KB
30354978f Move command line... |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 |
/* * (C) Copyright 2000 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * Add to readline cmdline-editing by * (C) Copyright 2005 * JinHua Luo, GuangDong Linux Center, <luo.jinhua@gd-linux.com> * * SPDX-License-Identifier: GPL-2.0+ */ #include <common.h> #include <cli.h> #include <cli_hush.h> |
24b852a7a Move console defi... |
15 |
#include <console.h> |
affb21562 main: Make the ex... |
16 |
#include <fdtdec.h> |
30354978f Move command line... |
17 |
#include <malloc.h> |
affb21562 main: Make the ex... |
18 |
DECLARE_GLOBAL_DATA_PTR; |
f8bb69643 Drop command-proc... |
19 |
#ifdef CONFIG_CMDLINE |
30354978f Move command line... |
20 21 22 23 24 25 26 27 28 |
/* * Run a command using the selected parser. * * @param cmd Command to run * @param flag Execution flags (CMD_FLAG_...) * @return 0 on success, or != 0 on error. */ int run_command(const char *cmd, int flag) { |
f1f9d4fac hush: complete re... |
29 |
#ifndef CONFIG_HUSH_PARSER |
30354978f Move command line... |
30 31 32 33 34 35 36 37 38 |
/* * cli_run_command can return 0 or 1 for success, so clean up * its result. */ if (cli_simple_run_command(cmd, flag) == -1) return 1; return 0; #else |
87b6398b4 cli: hush: Adjust... |
39 40 41 42 43 |
int hush_flags = FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP; if (flag & CMD_FLAG_ENV) hush_flags |= FLAG_CONT_ON_NEWLINE; return parse_string_outer(cmd, hush_flags); |
30354978f Move command line... |
44 45 |
#endif } |
1d43bfd2d Add run_command_r... |
46 47 48 49 50 51 52 53 54 |
/* * Run a command using the selected parser, and check if it is repeatable. * * @param cmd Command to run * @param flag Execution flags (CMD_FLAG_...) * @return 0 (not repeatable) or 1 (repeatable) on success, -1 on error. */ int run_command_repeatable(const char *cmd, int flag) { |
f1f9d4fac hush: complete re... |
55 |
#ifndef CONFIG_HUSH_PARSER |
1d43bfd2d Add run_command_r... |
56 57 58 59 60 61 62 63 64 65 66 67 68 |
return cli_simple_run_command(cmd, flag); #else /* * parse_string_outer() returns 1 for failure, so clean up * its result. */ if (parse_string_outer(cmd, FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP)) return -1; return 0; #endif } |
f8bb69643 Drop command-proc... |
69 |
#endif /* CONFIG_CMDLINE */ |
1d43bfd2d Add run_command_r... |
70 |
|
30354978f Move command line... |
71 72 73 74 75 76 77 78 |
int run_command_list(const char *cmd, int len, int flag) { int need_buff = 1; char *buff = (char *)cmd; /* cast away const */ int rcode = 0; if (len == -1) { len = strlen(cmd); |
f1f9d4fac hush: complete re... |
79 |
#ifdef CONFIG_HUSH_PARSER |
30354978f Move command line... |
80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 |
/* hush will never change our string */ need_buff = 0; #else /* the built-in parser will change our string if it sees */ need_buff = strchr(cmd, ' ') != NULL; #endif } if (need_buff) { buff = malloc(len + 1); if (!buff) return 1; memcpy(buff, cmd, len); buff[len] = '\0'; } |
f1f9d4fac hush: complete re... |
96 |
#ifdef CONFIG_HUSH_PARSER |
30354978f Move command line... |
97 98 99 100 101 102 103 104 105 106 |
rcode = parse_string_outer(buff, FLAG_PARSE_SEMICOLON); #else /* * This function will overwrite any it sees with a \0, which * is why it can't work with a const char *. Here we are making * using of internal knowledge of this function, to avoid always * doing a malloc() which is actually required only in a case that * is pretty rare. */ |
f8bb69643 Drop command-proc... |
107 |
#ifdef CONFIG_CMDLINE |
30354978f Move command line... |
108 |
rcode = cli_simple_run_command_list(buff, flag); |
f8bb69643 Drop command-proc... |
109 110 111 |
#else rcode = board_run_command(buff); #endif |
09a788624 common: cli: avoi... |
112 |
#endif |
30354978f Move command line... |
113 114 |
if (need_buff) free(buff); |
30354978f Move command line... |
115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 |
return rcode; } /****************************************************************************/ #if defined(CONFIG_CMD_RUN) int do_run(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { int i; if (argc < 2) return CMD_RET_USAGE; for (i = 1; i < argc; ++i) { char *arg; |
00caae6d4 env: Rename geten... |
131 |
arg = env_get(argv[i]); |
30354978f Move command line... |
132 133 134 135 136 |
if (arg == NULL) { printf("## Error: \"%s\" not defined ", argv[i]); return 1; } |
87b6398b4 cli: hush: Adjust... |
137 |
if (run_command(arg, flag | CMD_FLAG_ENV) != 0) |
30354978f Move command line... |
138 139 140 141 142 |
return 1; } return 0; } #endif |
c1bb2cd0b main: Hide the hu... |
143 |
|
0f9258228 of: clean up OF_C... |
144 |
#if CONFIG_IS_ENABLED(OF_CONTROL) |
affb21562 main: Make the ex... |
145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 |
bool cli_process_fdt(const char **cmdp) { /* Allow the fdt to override the boot command */ char *env = fdtdec_get_config_string(gd->fdt_blob, "bootcmd"); if (env) *cmdp = env; /* * If the bootsecure option was chosen, use secure_boot_cmd(). * Always use 'env' in this case, since bootsecure requres that the * bootcmd was specified in the FDT too. */ return fdtdec_get_config_int(gd->fdt_blob, "bootsecure", 0) != 0; } /* * Runs the given boot command securely. Specifically: * - Doesn't run the command with the shell (run_command or parse_string_outer), * since that's a lot of code surface that an attacker might exploit. * Because of this, we don't do any argument parsing--the secure boot command * has to be a full-fledged u-boot command. * - Doesn't check for keypresses before booting, since that could be a * security hole; also disables Ctrl-C. * - Doesn't allow the command to return. * * Upon any failures, this function will drop into an infinite loop after * printing the error message to console. */ void cli_secure_boot_cmd(const char *cmd) { |
f8bb69643 Drop command-proc... |
174 |
#ifdef CONFIG_CMDLINE |
affb21562 main: Make the ex... |
175 |
cmd_tbl_t *cmdtp; |
f8bb69643 Drop command-proc... |
176 |
#endif |
affb21562 main: Make the ex... |
177 178 179 180 181 182 183 184 185 186 187 188 |
int rc; if (!cmd) { printf("## Error: Secure boot command not specified "); goto err; } /* Disable Ctrl-C just in case some command is used that checks it. */ disable_ctrlc(1); /* Find the command directly. */ |
f8bb69643 Drop command-proc... |
189 |
#ifdef CONFIG_CMDLINE |
affb21562 main: Make the ex... |
190 191 192 193 194 195 196 197 198 |
cmdtp = find_cmd(cmd); if (!cmdtp) { printf("## Error: \"%s\" not defined ", cmd); goto err; } /* Run the command, forcing no flags and faking argc and argv. */ rc = (cmdtp->cmd)(cmdtp, 0, 1, (char **)&cmd); |
f8bb69643 Drop command-proc... |
199 200 201 |
#else rc = board_run_command(cmd); #endif |
affb21562 main: Make the ex... |
202 203 204 205 206 207 208 209 210 211 212 |
/* Shouldn't ever return from boot command. */ printf("## Error: \"%s\" returned (code %d) ", cmd, rc); err: /* * Not a whole lot to do here. Rebooting won't help much, since we'll * just end up right back here. Just loop. */ hang(); } |
0f9258228 of: clean up OF_C... |
213 |
#endif /* CONFIG_IS_ENABLED(OF_CONTROL) */ |
affb21562 main: Make the ex... |
214 |
|
c1bb2cd0b main: Hide the hu... |
215 216 |
void cli_loop(void) { |
f1f9d4fac hush: complete re... |
217 |
#ifdef CONFIG_HUSH_PARSER |
c1bb2cd0b main: Hide the hu... |
218 219 220 |
parse_file_outer(); /* This point is never reached */ for (;;); |
30eae26b5 common: cli: Fix ... |
221 |
#elif defined(CONFIG_CMDLINE) |
c1bb2cd0b main: Hide the hu... |
222 |
cli_simple_loop(); |
f8bb69643 Drop command-proc... |
223 224 225 |
#else printf("## U-Boot command line is disabled. Please enable CONFIG_CMDLINE "); |
f1f9d4fac hush: complete re... |
226 |
#endif /*CONFIG_HUSH_PARSER*/ |
c1bb2cd0b main: Hide the hu... |
227 228 229 230 |
} void cli_init(void) { |
f1f9d4fac hush: complete re... |
231 |
#ifdef CONFIG_HUSH_PARSER |
c1bb2cd0b main: Hide the hu... |
232 233 234 235 236 237 238 |
u_boot_hush_start(); #endif #if defined(CONFIG_HUSH_INIT_VAR) hush_init_var(); #endif } |