1 /* $NetBSD: upgrade.c,v 1.17 2020/11/04 14:29:40 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 if (set_swap_if_low_ram(&install) < 0) 85 return; 86 87 if (md_pre_update(&install) < 0) 88 goto free_install; 89 90 if (mount_disks(&install) != 0) 91 goto free_install; 92 93 94 /* 95 * Save X symlink, ... 96 */ 97 if (save_X("/usr/X11R6")) 98 goto free_install; 99 if (save_X("/usr/X11R7")) 100 goto free_install; 101 102 #ifdef AOUT2ELF 103 move_aout_libs(); 104 #endif 105 /* Do any md updating of the file systems ... e.g. bootblocks, 106 copy file systems ... */ 107 if (!md_update(&install)) 108 goto free_install; 109 110 wrefresh(curscr); 111 wmove(stdscr, 0, 0); 112 wclear(stdscr); 113 wrefresh(stdscr); 114 115 /* Done with disks. Ready to get and unpack tarballs. */ 116 process_menu(MENU_distset, &retcode); 117 if (retcode == 0) 118 goto free_install; 119 if (get_and_unpack_sets(1, MSG_disksetupdoneupdate, 120 MSG_upgrcomplete, MSG_abortupgr) != 0) 121 goto free_install; 122 123 if (md_post_extract(&install)) 124 goto free_install; 125 126 merge_X("/usr/X11R6"); 127 merge_X("/usr/X11R7"); 128 129 sanity_check(); 130 131 free_install: 132 free_install_desc(&install); 133 } 134 135 /* 136 * Save X symlink to X.old so it can be recovered later 137 */ 138 static int 139 save_X(const char *xroot) 140 { 141 char newx[MAXPATHLEN], oldx[MAXPATHLEN]; 142 143 strlcpy(newx, xroot, sizeof(newx)); 144 strlcat(newx, "/bin/X", sizeof(newx)); 145 strlcpy(oldx, newx, sizeof(oldx)); 146 strlcat(oldx, ".old", sizeof(oldx)); 147 148 /* Only care for X if it's a symlink */ 149 if (target_symlink_exists_p(newx)) { 150 if (target_symlink_exists_p(oldx)) { 151 msg_fmt_display(MSG_X_oldexists, 152 "%s%s%s%s%s%s%s%s%s%s%s", 153 xroot, xroot, xroot, xroot, xroot, xroot, xroot, 154 xroot, xroot, xroot, xroot); 155 hit_enter_to_continue(NULL, NULL); 156 return EEXIST; 157 } 158 159 #ifdef DEBUG 160 printf("saving %s as %s ...", newx, oldx); 161 #endif 162 163 /* Move target .../X to .../X.old. Abort on error. */ 164 mv_within_target_or_die(newx, oldx); 165 } 166 167 return 0; 168 } 169 170 /* 171 * Merge back saved target X files after unpacking the new 172 * sets has completed. 173 */ 174 static int 175 merge_X(const char *xroot) 176 { 177 char newx[MAXPATHLEN], oldx[MAXPATHLEN]; 178 179 strlcpy(newx, xroot, sizeof(newx)); 180 strlcat(newx, "/bin/X", sizeof(newx)); 181 strlcpy(oldx, newx, sizeof(oldx)); 182 strlcat(oldx, ".old", sizeof(oldx)); 183 184 if (target_symlink_exists_p(oldx)) { 185 /* Only move back X if it's a symlink - we don't want 186 * to restore old binaries */ 187 mv_within_target_or_die(oldx, newx); 188 } 189 190 return 0; 191 } 192 193 /* 194 * Unpacks sets, clobbering existing contents. 195 */ 196 void 197 do_reinstall_sets() 198 { 199 struct install_partition_desc install = {}; 200 int retcode = 0; 201 partman_go = 0; 202 203 unwind_mounts(); 204 msg_display(MSG_reinstallusure); 205 if (!ask_noyes(NULL)) 206 return; 207 208 if (find_disks(msg_string(MSG_reinstall), !root_is_read_only()) < 0) 209 return; 210 211 if (!pm->cur_system && pm->parts != NULL) { 212 install_desc_from_parts(&install, pm->parts); 213 } else if (pm->cur_system) { 214 install.cur_system = true; 215 } 216 217 if (mount_disks(&install) != 0) 218 goto free_install; 219 220 /* Unpack the distribution. */ 221 process_menu(MENU_distset, &retcode); 222 if (retcode == 0) 223 goto free_install; 224 if (get_and_unpack_sets(0, NULL, MSG_unpackcomplete, MSG_abortunpack) != 0) 225 goto free_install; 226 227 sanity_check(); 228 229 free_install: 230 free_install_desc(&install); 231 } 232