1 /* $NetBSD: upgrade.c,v 1.18 2021/08/12 09:33:59 martin Exp $ */ 2 3 /* 4 * Copyright 1997 Piermont Information Systems Inc. 5 * All rights reserved. 6 * 7 * Written by Philip A. Nelson for Piermont Information Systems Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of Piermont Information Systems Inc. may not be used to endorse 18 * or promote products derived from this software without specific prior 19 * written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE 25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 31 * THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 */ 34 35 /* upgrade.c -- upgrade an installation. */ 36 37 #include <sys/param.h> 38 #include <stdio.h> 39 #include <curses.h> 40 #include <errno.h> 41 #include "defs.h" 42 #include "msg_defs.h" 43 #include "menu_defs.h" 44 45 /* 46 * local prototypes 47 */ 48 static int save_X(const char *); 49 static int merge_X(const char *); 50 51 /* 52 * Do the system upgrade. 53 */ 54 void 55 do_upgrade(void) 56 { 57 struct install_partition_desc install = {}; 58 int retcode = 0; 59 partman_go = 0; 60 61 msg_display(MSG_upgradeusure); 62 if (!ask_noyes(NULL)) 63 return; 64 65 if (find_disks(msg_string(MSG_upgrade), !root_is_read_only()) < 0) 66 return; 67 68 if (pm->parts == NULL && !pm->cur_system && !pm->no_part) { 69 hit_enter_to_continue(MSG_noroot, NULL); 70 return; 71 } 72 73 if (!pm->cur_system && pm->parts != NULL) { 74 if (pm->parts->pscheme->pre_update_verify) { 75 if (pm->parts->pscheme->pre_update_verify(pm->parts)) 76 pm->parts->pscheme->write_to_disk(pm->parts); 77 } 78 79 install_desc_from_parts(&install, pm->parts); 80 } else if (pm->cur_system) { 81 install.cur_system = true; 82 } 83 84 set_swap_if_low_ram(&install); 85 86 if (md_pre_update(&install) < 0) 87 goto free_install; 88 89 if (mount_disks(&install) != 0) 90 goto free_install; 91 92 93 /* 94 * Save X symlink, ... 95 */ 96 if (save_X("/usr/X11R6")) 97 goto free_install; 98 if (save_X("/usr/X11R7")) 99 goto free_install; 100 101 #ifdef AOUT2ELF 102 move_aout_libs(); 103 #endif 104 /* Do any md updating of the file systems ... e.g. bootblocks, 105 copy file systems ... */ 106 if (!md_update(&install)) 107 goto free_install; 108 109 wrefresh(curscr); 110 wmove(stdscr, 0, 0); 111 wclear(stdscr); 112 wrefresh(stdscr); 113 114 /* Done with disks. Ready to get and unpack tarballs. */ 115 process_menu(MENU_distset, &retcode); 116 if (retcode == 0) 117 goto free_install; 118 if (get_and_unpack_sets(1, MSG_disksetupdoneupdate, 119 MSG_upgrcomplete, MSG_abortupgr) != 0) 120 goto free_install; 121 122 if (md_post_extract(&install)) 123 goto free_install; 124 125 merge_X("/usr/X11R6"); 126 merge_X("/usr/X11R7"); 127 128 sanity_check(); 129 130 free_install: 131 free_install_desc(&install); 132 } 133 134 /* 135 * Save X symlink to X.old so it can be recovered later 136 */ 137 static int 138 save_X(const char *xroot) 139 { 140 char newx[MAXPATHLEN], oldx[MAXPATHLEN]; 141 142 strlcpy(newx, xroot, sizeof(newx)); 143 strlcat(newx, "/bin/X", sizeof(newx)); 144 strlcpy(oldx, newx, sizeof(oldx)); 145 strlcat(oldx, ".old", sizeof(oldx)); 146 147 /* Only care for X if it's a symlink */ 148 if (target_symlink_exists_p(newx)) { 149 if (target_symlink_exists_p(oldx)) { 150 msg_fmt_display(MSG_X_oldexists, 151 "%s%s%s%s%s%s%s%s%s%s%s", 152 xroot, xroot, xroot, xroot, xroot, xroot, xroot, 153 xroot, xroot, xroot, xroot); 154 hit_enter_to_continue(NULL, NULL); 155 return EEXIST; 156 } 157 158 #ifdef DEBUG 159 printf("saving %s as %s ...", newx, oldx); 160 #endif 161 162 /* Move target .../X to .../X.old. Abort on error. */ 163 mv_within_target_or_die(newx, oldx); 164 } 165 166 return 0; 167 } 168 169 /* 170 * Merge back saved target X files after unpacking the new 171 * sets has completed. 172 */ 173 static int 174 merge_X(const char *xroot) 175 { 176 char newx[MAXPATHLEN], oldx[MAXPATHLEN]; 177 178 strlcpy(newx, xroot, sizeof(newx)); 179 strlcat(newx, "/bin/X", sizeof(newx)); 180 strlcpy(oldx, newx, sizeof(oldx)); 181 strlcat(oldx, ".old", sizeof(oldx)); 182 183 if (target_symlink_exists_p(oldx)) { 184 /* Only move back X if it's a symlink - we don't want 185 * to restore old binaries */ 186 mv_within_target_or_die(oldx, newx); 187 } 188 189 return 0; 190 } 191 192 /* 193 * Unpacks sets, clobbering existing contents. 194 */ 195 void 196 do_reinstall_sets() 197 { 198 struct install_partition_desc install = {}; 199 int retcode = 0; 200 partman_go = 0; 201 202 unwind_mounts(); 203 msg_display(MSG_reinstallusure); 204 if (!ask_noyes(NULL)) 205 return; 206 207 if (find_disks(msg_string(MSG_reinstall), !root_is_read_only()) < 0) 208 return; 209 210 if (!pm->cur_system && pm->parts != NULL) { 211 install_desc_from_parts(&install, pm->parts); 212 } else if (pm->cur_system) { 213 install.cur_system = true; 214 } 215 216 if (mount_disks(&install) != 0) 217 goto free_install; 218 219 /* Unpack the distribution. */ 220 process_menu(MENU_distset, &retcode); 221 if (retcode == 0) 222 goto free_install; 223 if (get_and_unpack_sets(0, NULL, MSG_unpackcomplete, MSG_abortunpack) != 0) 224 goto free_install; 225 226 sanity_check(); 227 228 free_install: 229 free_install_desc(&install); 230 } 231