diff options
Diffstat (limited to 'common/cli.c')
| -rw-r--r-- | common/cli.c | 82 |
1 files changed, 72 insertions, 10 deletions
diff --git a/common/cli.c b/common/cli.c index 3916a7b10a7..a34938294ec 100644 --- a/common/cli.c +++ b/common/cli.c @@ -25,6 +25,14 @@ #include <linux/errno.h> #ifdef CONFIG_CMDLINE + +static inline bool use_hush_old(void) +{ + return IS_ENABLED(CONFIG_HUSH_SELECTABLE) ? + gd->flags & GD_FLG_HUSH_OLD_PARSER : + IS_ENABLED(CONFIG_HUSH_OLD_PARSER); +} + /* * Run a command using the selected parser. * @@ -44,11 +52,29 @@ int run_command(const char *cmd, int flag) return 0; #else - int hush_flags = FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP; + if (use_hush_old()) { + 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); + if (flag & CMD_FLAG_ENV) + hush_flags |= FLAG_CONT_ON_NEWLINE; + return parse_string_outer(cmd, hush_flags); + } + /* + * Possible values for flags are the following: + * FLAG_EXIT_FROM_LOOP: This flags ensures we exit from loop in + * parse_and_run_stream() after first iteration while normal + * behavior, * i.e. when called from cli_loop(), is to loop + * infinitely. + * FLAG_PARSE_SEMICOLON: modern Hush parses ';' and does not stop + * first time it sees one. So, I think we do not need this flag. + * FLAG_REPARSING: For the moment, I do not understand the goal + * of this flag. + * FLAG_CONT_ON_NEWLINE: This flag seems to be used to continue + * parsing even when reading '\n' when coming from + * run_command(). In this case, modern Hush reads until it finds + * '\0'. So, I think we do not need this flag. + */ + return parse_string_outer_modern(cmd, FLAG_EXIT_FROM_LOOP); #endif } @@ -64,12 +90,23 @@ int run_command_repeatable(const char *cmd, int flag) #ifndef CONFIG_HUSH_PARSER return cli_simple_run_command(cmd, flag); #else + int ret; + + if (use_hush_old()) { + ret = parse_string_outer(cmd, + FLAG_PARSE_SEMICOLON + | FLAG_EXIT_FROM_LOOP); + } else { + ret = parse_string_outer_modern(cmd, + FLAG_PARSE_SEMICOLON + | FLAG_EXIT_FROM_LOOP); + } + /* * parse_string_outer() returns 1 for failure, so clean up * its result. */ - if (parse_string_outer(cmd, - FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP)) + if (ret) return -1; return 0; @@ -108,7 +145,11 @@ int run_command_list(const char *cmd, int len, int flag) buff[len] = '\0'; } #ifdef CONFIG_HUSH_PARSER - rcode = parse_string_outer(buff, FLAG_PARSE_SEMICOLON); + if (use_hush_old()) { + rcode = parse_string_outer(buff, FLAG_PARSE_SEMICOLON); + } else { + rcode = parse_string_outer_modern(buff, FLAG_PARSE_SEMICOLON); + } #else /* * This function will overwrite any \n it sees with a \0, which @@ -254,8 +295,13 @@ err: void cli_loop(void) { bootstage_mark(BOOTSTAGE_ID_ENTER_CLI_LOOP); -#ifdef CONFIG_HUSH_PARSER - parse_file_outer(); +#if CONFIG_IS_ENABLED(HUSH_PARSER) + if (gd->flags & GD_FLG_HUSH_MODERN_PARSER) + parse_and_run_file(); + else if (gd->flags & GD_FLG_HUSH_OLD_PARSER) + parse_file_outer(); + + printf("Problem\n"); /* This point is never reached */ for (;;); #elif defined(CONFIG_CMDLINE) @@ -268,7 +314,23 @@ void cli_loop(void) void cli_init(void) { #ifdef CONFIG_HUSH_PARSER - u_boot_hush_start(); + /* This if block is used to initialize hush parser gd flag. */ + if (!(gd->flags & GD_FLG_HUSH_OLD_PARSER) + && !(gd->flags & GD_FLG_HUSH_MODERN_PARSER)) { + if (CONFIG_IS_ENABLED(HUSH_OLD_PARSER)) + gd->flags |= GD_FLG_HUSH_OLD_PARSER; + else if (CONFIG_IS_ENABLED(HUSH_MODERN_PARSER)) + gd->flags |= GD_FLG_HUSH_MODERN_PARSER; + } + + if (gd->flags & GD_FLG_HUSH_OLD_PARSER) { + u_boot_hush_start(); + } else if (gd->flags & GD_FLG_HUSH_MODERN_PARSER) { + u_boot_hush_start_modern(); + } else { + printf("No valid hush parser to use, cli will not initialized!\n"); + return; + } #endif #if defined(CONFIG_HUSH_INIT_VAR) |