1 /* $NetBSD: upgrade.c,v 1.16 2020/02/06 19:50:04 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 /* XXX pass install here too */ 108 if (!md_update(&install)) 109 goto free_install; 110 111 wrefresh(curscr); 112 wmove(stdscr, 0, 0); 113 wclear(stdscr); 114 wrefresh(stdscr); 115 116 /* Done with disks. Ready to get and unpack tarballs. */ 117 process_menu(MENU_distset, &retcode); 118 if (retcode == 0) 119 goto free_install; 120 if (get_and_unpack_sets(1, MSG_disksetupdoneupdate, 121 MSG_upgrcomplete, MSG_abortupgr) != 0) 122 goto free_install; 123 124 if (md_post_extract(&install)) 125 goto free_install; 126 127 merge_X("/usr/X11R6"); 128 merge_X("/usr/X11R7"); 129 130 sanity_check(); 131 132 free_install: 133 free_install_desc(&install); 134 } 135 136 /* 137 * Save X symlink to X.old so it can be recovered later 138 */ 139 static int 140 save_X(const char *xroot) 141 { 142 char newx[MAXPATHLEN], oldx[MAXPATHLEN]; 143 144 strlcpy(newx, xroot, sizeof(newx)); 145 strlcat(newx, "/bin/X", sizeof(newx)); 146 strlcpy(oldx, newx, sizeof(oldx)); 147 strlcat(oldx, ".old", sizeof(oldx)); 148 149 /* Only care for X if it's a symlink */ 150 if (target_symlink_exists_p(newx)) { 151 if (target_symlink_exists_p(oldx)) { 152 msg_fmt_display(MSG_X_oldexists, 153 "%s%s%s%s%s%s%s%s%s%s%s", 154 xroot, xroot, xroot, xroot, xroot, xroot, xroot, 155 xroot, xroot, xroot, xroot); 156 hit_enter_to_continue(NULL, NULL); 157 return EEXIST; 158 } 159 160 #ifdef DEBUG 161 printf("saving %s as %s ...", newx, oldx); 162 #endif 163 164 /* Move target .../X to .../X.old. Abort on error. */ 165 mv_within_target_or_die(newx, oldx); 166 } 167 168 return 0; 169 } 170 171 /* 172 * Merge back saved target X files after unpacking the new 173 * sets has completed. 174 */ 175 static int 176 merge_X(const char *xroot) 177 { 178 char newx[MAXPATHLEN], oldx[MAXPATHLEN]; 179 180 strlcpy(newx, xroot, sizeof(newx)); 181 strlcat(newx, "/bin/X", sizeof(newx)); 182 strlcpy(oldx, newx, sizeof(oldx)); 183 strlcat(oldx, ".old", sizeof(oldx)); 184 185 if (target_symlink_exists_p(oldx)) { 186 /* Only move back X if it's a symlink - we don't want 187 * to restore old binaries */ 188 mv_within_target_or_die(oldx, newx); 189 } 190 191 return 0; 192 } 193 194 /* 195 * Unpacks sets, clobbering existing contents. 196 */ 197 void 198 do_reinstall_sets() 199 { 200 struct install_partition_desc install = {}; 201 int retcode = 0; 202 partman_go = 0; 203 204 unwind_mounts(); 205 msg_display(MSG_reinstallusure); 206 if (!ask_noyes(NULL)) 207 return; 208 209 if (find_disks(msg_string(MSG_reinstall), !root_is_read_only()) < 0) 210 return; 211 212 if (!pm->cur_system && pm->parts != NULL) { 213 install_desc_from_parts(&install, pm->parts); 214 } else if (pm->cur_system) { 215 install.cur_system = true; 216 } 217 218 if (mount_disks(&install) != 0) 219 goto free_install; 220 221 /* Unpack the distribution. */ 222 process_menu(MENU_distset, &retcode); 223 if (retcode == 0) 224 goto free_install; 225 if (get_and_unpack_sets(0, NULL, MSG_unpackcomplete, MSG_abortunpack) != 0) 226 goto free_install; 227 228 sanity_check(); 229 230 free_install: 231 free_install_desc(&install); 232 } 233