1 /* $NetBSD: upgrade.c,v 1.13 2019/08/27 14:11:00 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 get_ramsize(); 66 67 if (find_disks(msg_string(MSG_upgrade), !root_is_read_only()) < 0) 68 return; 69 70 if (pm->parts == NULL && !pm->cur_system) { 71 hit_enter_to_continue(MSG_noroot, NULL); 72 return; 73 } 74 75 if (!pm->cur_system) { 76 if (pm->parts->pscheme->pre_update_verify) { 77 if (pm->parts->pscheme->pre_update_verify(pm->parts)) 78 pm->parts->pscheme->write_to_disk(pm->parts); 79 } 80 81 install_desc_from_parts(&install, pm->parts); 82 } else { 83 install.cur_system = true; 84 } 85 86 if (set_swap_if_low_ram(&install) < 0) 87 return; 88 89 if (md_pre_update(&install) < 0) 90 goto free_install; 91 92 if (mount_disks(&install) != 0) 93 goto free_install; 94 95 96 /* 97 * Save X symlink, ... 98 */ 99 if (save_X("/usr/X11R6")) 100 goto free_install; 101 if (save_X("/usr/X11R7")) 102 goto free_install; 103 104 #ifdef AOUT2ELF 105 move_aout_libs(); 106 #endif 107 /* Do any md updating of the file systems ... e.g. bootblocks, 108 copy file systems ... */ 109 /* XXX pass install here too */ 110 if (!md_update(&install)) 111 goto free_install; 112 113 wrefresh(curscr); 114 wmove(stdscr, 0, 0); 115 wclear(stdscr); 116 wrefresh(stdscr); 117 118 /* Done with disks. Ready to get and unpack tarballs. */ 119 process_menu(MENU_distset, &retcode); 120 if (retcode == 0) 121 goto free_install; 122 if (get_and_unpack_sets(1, MSG_disksetupdoneupdate, 123 MSG_upgrcomplete, MSG_abortupgr) != 0) 124 goto free_install; 125 126 if (md_post_extract(&install)) 127 goto free_install; 128 129 merge_X("/usr/X11R6"); 130 merge_X("/usr/X11R7"); 131 132 sanity_check(); 133 134 free_install: 135 free_install_desc(&install); 136 } 137 138 /* 139 * Save X symlink to X.old so it can be recovered later 140 */ 141 static int 142 save_X(const char *xroot) 143 { 144 char newx[MAXPATHLEN], oldx[MAXPATHLEN]; 145 146 strlcpy(newx, xroot, sizeof(newx)); 147 strlcat(newx, "/bin/X", sizeof(newx)); 148 strlcpy(oldx, newx, sizeof(oldx)); 149 strlcat(oldx, ".old", sizeof(oldx)); 150 151 /* Only care for X if it's a symlink */ 152 if (target_symlink_exists_p(newx)) { 153 if (target_symlink_exists_p(oldx)) { 154 msg_fmt_display(MSG_X_oldexists, 155 "%s%s%s%s%s%s%s%s%s%s%s", 156 xroot, xroot, xroot, xroot, xroot, xroot, xroot, 157 xroot, xroot, xroot, xroot); 158 hit_enter_to_continue(NULL, NULL); 159 return EEXIST; 160 } 161 162 #ifdef DEBUG 163 printf("saving %s as %s ...", newx, oldx); 164 #endif 165 166 /* Move target .../X to .../X.old. Abort on error. */ 167 mv_within_target_or_die(newx, oldx); 168 } 169 170 return 0; 171 } 172 173 /* 174 * Merge back saved target X files after unpacking the new 175 * sets has completed. 176 */ 177 static int 178 merge_X(const char *xroot) 179 { 180 char newx[MAXPATHLEN], oldx[MAXPATHLEN]; 181 182 strlcpy(newx, xroot, sizeof(newx)); 183 strlcat(newx, "/bin/X", sizeof(newx)); 184 strlcpy(oldx, newx, sizeof(oldx)); 185 strlcat(oldx, ".old", sizeof(oldx)); 186 187 if (target_symlink_exists_p(oldx)) { 188 /* Only move back X if it's a symlink - we don't want 189 * to restore old binaries */ 190 mv_within_target_or_die(oldx, newx); 191 } 192 193 return 0; 194 } 195 196 /* 197 * Unpacks sets, clobbering existing contents. 198 */ 199 void 200 do_reinstall_sets() 201 { 202 struct install_partition_desc install = {}; 203 int retcode = 0; 204 partman_go = 0; 205 206 unwind_mounts(); 207 msg_display(MSG_reinstallusure); 208 if (!ask_noyes(NULL)) 209 return; 210 211 if (find_disks(msg_string(MSG_reinstall), !root_is_read_only()) < 0) 212 return; 213 214 if (!pm->cur_system) { 215 if (pm->parts == NULL) { 216 hit_enter_to_continue(MSG_noroot, NULL); 217 return; 218 } 219 220 install_desc_from_parts(&install, pm->parts); 221 } else { 222 install.cur_system = true; 223 } 224 225 if (mount_disks(&install) != 0) 226 goto free_install; 227 228 /* Unpack the distribution. */ 229 process_menu(MENU_distset, &retcode); 230 if (retcode == 0) 231 goto free_install; 232 if (get_and_unpack_sets(0, NULL, MSG_unpackcomplete, MSG_abortunpack) != 0) 233 goto free_install; 234 235 sanity_check(); 236 237 free_install: 238 free_install_desc(&install); 239 } 240