bootmenu.c revision 1.18
1 /* $NetBSD: bootmenu.c,v 1.18 2022/06/08 21:55:51 wiz Exp $ */ 2 3 /*- 4 * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef SMALL 30 31 #include <sys/types.h> 32 #include <sys/reboot.h> 33 #include <sys/bootblock.h> 34 35 #include <lib/libsa/stand.h> 36 #include <lib/libsa/bootcfg.h> 37 #include <lib/libsa/ufs.h> 38 #include <lib/libkern/libkern.h> 39 40 #include <libi386.h> 41 #include <bootmenu.h> 42 43 static void docommandchoice(int); 44 45 extern struct x86_boot_params boot_params; 46 extern const char bootprog_name[], bootprog_rev[], bootprog_kernrev[]; 47 48 #define MENUFORMAT_AUTO 0 49 #define MENUFORMAT_NUMBER 1 50 #define MENUFORMAT_LETTER 2 51 52 /* 53 * XXX 54 * if module_add, userconf_add are strictly mi they can be folded back 55 * into sys/lib/libsa/bootcfg.c:perform_bootcfg(). 56 */ 57 static void 58 do_bootcfg_command(const char *cmd, char *arg) 59 { 60 if (strcmp(cmd, BOOTCFG_CMD_LOAD) == 0) 61 module_add(arg); 62 else if (strcmp(cmd, BOOTCFG_CMD_USERCONF) == 0) 63 userconf_add(arg); 64 } 65 66 int 67 parsebootconf(const char *conf) 68 { 69 return perform_bootcfg(conf, &do_bootcfg_command, 32768); 70 } 71 72 /* 73 * doboottypemenu will render the menu and parse any user input 74 */ 75 static int 76 getchoicefrominput(char *input, int def) 77 { 78 int choice, usedef; 79 80 choice = -1; 81 usedef = 0; 82 83 if (*input == '\0' || *input == '\r' || *input == '\n') { 84 choice = def; 85 usedef = 1; 86 } else if (*input >= 'A' && *input < bootcfg_info.nummenu + 'A') 87 choice = (*input) - 'A'; 88 else if (*input >= 'a' && *input < bootcfg_info.nummenu + 'a') 89 choice = (*input) - 'a'; 90 else if (isdigit(*input)) { 91 choice = atoi(input) - 1; 92 if (choice < 0 || choice >= bootcfg_info.nummenu) 93 choice = -1; 94 } 95 96 if (bootcfg_info.menuformat != MENUFORMAT_LETTER && 97 !isdigit(*input) && !usedef) 98 choice = -1; 99 100 return choice; 101 } 102 103 static void 104 docommandchoice(int choice) 105 { 106 char input[80], *ic, *oc; 107 108 ic = bootcfg_info.command[choice]; 109 /* Split command string at ; into separate commands */ 110 do { 111 oc = input; 112 /* Look for ; separator */ 113 for (; *ic && *ic != COMMAND_SEPARATOR; ic++) 114 *oc++ = *ic; 115 if (*input == '\0') 116 continue; 117 /* Strip out any trailing spaces */ 118 oc--; 119 for (; *oc == ' ' && oc > input; oc--); 120 *++oc = '\0'; 121 if (*ic == COMMAND_SEPARATOR) 122 ic++; 123 /* Stop silly command strings like ;;; */ 124 if (*input != '\0') 125 docommand(input); 126 /* Skip leading spaces */ 127 for (; *ic == ' '; ic++); 128 } while (*ic); 129 } 130 131 __dead void 132 doboottypemenu(void) 133 { 134 int choice; 135 char input[80]; 136 137 printf("\n"); 138 /* Display menu */ 139 if (bootcfg_info.menuformat == MENUFORMAT_LETTER) { 140 for (choice = 0; choice < bootcfg_info.nummenu; choice++) 141 printf(" %c. %s\n", choice + 'A', 142 bootcfg_info.desc[choice]); 143 } else { 144 /* Can't use %2d format string with libsa */ 145 for (choice = 0; choice < bootcfg_info.nummenu; choice++) 146 printf(" %s%d. %s\n", 147 (choice < 9) ? " " : "", 148 choice + 1, 149 bootcfg_info.desc[choice]); 150 } 151 choice = -1; 152 for (;;) { 153 input[0] = '\0'; 154 155 if (bootcfg_info.timeout < 0) { 156 if (bootcfg_info.menuformat == MENUFORMAT_LETTER) 157 printf("\nOption: [%c]:", 158 bootcfg_info.def + 'A'); 159 else 160 printf("\nOption: [%d]:", 161 bootcfg_info.def + 1); 162 163 kgets(input, sizeof(input)); 164 choice = getchoicefrominput(input, bootcfg_info.def); 165 } else if (bootcfg_info.timeout == 0) 166 choice = bootcfg_info.def; 167 else { 168 printf("\nChoose an option; RETURN for default; " 169 "SPACE to stop countdown.\n"); 170 if (bootcfg_info.menuformat == MENUFORMAT_LETTER) 171 printf("Option %c will be chosen in ", 172 bootcfg_info.def + 'A'); 173 else 174 printf("Option %d will be chosen in ", 175 bootcfg_info.def + 1); 176 input[0] = awaitkey(bootcfg_info.timeout, 1); 177 input[1] = '\0'; 178 choice = getchoicefrominput(input, bootcfg_info.def); 179 /* If invalid key pressed, drop to menu */ 180 if (choice == -1) 181 bootcfg_info.timeout = -1; 182 } 183 if (choice < 0) 184 continue; 185 if (!strcmp(bootcfg_info.command[choice], "prompt") && 186 ((boot_params.bp_flags & X86_BP_FLAGS_PASSWORD) == 0 || 187 check_password((char *)boot_params.bp_password))) { 188 printf("type \"?\" or \"help\" for help.\n"); 189 bootmenu(); /* does not return */ 190 } else { 191 docommandchoice(choice); 192 } 193 194 } 195 } 196 197 #endif /* !SMALL */ 198
Indexes created Fri Oct 17 03:10:13 GMT 2025