1 /* 2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 29 #include <stand.h> 30 #include <sys/param.h> 31 #include <sys/reboot.h> 32 #include <sys/boot.h> 33 #include <sys/linker.h> 34 35 #include "bootstrap.h" 36 #include "libuserboot.h" 37 38 int 39 bi_getboothowto(char *kargs) 40 { 41 char *curpos, *next, *string; 42 int howto = 0; 43 int vidconsole; 44 45 /* howto = boot_parse_cmdline(kargs); */ 46 /* howto |= boot_env_to_howto(); */ 47 /* Get the boot options from the environment first. */ 48 for (int i = 0; howto_names[i].ev != NULL; i++) { 49 if (getenv(howto_names[i].ev) != NULL) 50 howto |= howto_names[i].mask; 51 } 52 53 /* Enable selected consoles */ 54 string = next = strdup(getenv("console")); 55 vidconsole = 0; 56 while (next != NULL) { 57 curpos = strsep(&next, " ,"); 58 if (*curpos == '\0') 59 continue; 60 if (strcmp(curpos, "text") == 0) 61 vidconsole = 1; 62 else if (strcmp(curpos, "ttya") == 0) 63 howto |= RB_SERIAL; 64 else if (strcmp(curpos, "nullconsole") == 0) 65 howto |= RB_MUTE; 66 } 67 68 if (vidconsole && (howto & RB_SERIAL)) 69 howto |= RB_MULTIPLE; 70 71 /* 72 * XXX: Note that until the kernel is ready to respect multiple consoles 73 * for the messages from /etc/rc, the first named console is the primary 74 * console 75 */ 76 if (strcmp(string, "text") == 0) 77 howto &= ~RB_SERIAL; 78 79 free(string); 80 81 return (howto); 82 } 83 84 void 85 bi_setboothowto(int howto) 86 { 87 88 /* boot_howto_to_env(howto); */ 89 } 90 91 /* 92 * Copy the environment into the load area starting at (addr). 93 * Each variable is formatted as <name>=<value>, with a single nul 94 * separating each variable, and a double nul terminating the environment. 95 */ 96 vm_offset_t 97 bi_copyenv(vm_offset_t addr) 98 { 99 struct env_var *ep; 100 101 /* traverse the environment */ 102 for (ep = environ; ep != NULL; ep = ep->ev_next) { 103 CALLBACK(copyin, ep->ev_name, addr, strlen(ep->ev_name)); 104 addr += strlen(ep->ev_name); 105 CALLBACK(copyin, "=", addr, 1); 106 addr++; 107 if (ep->ev_value != NULL) { 108 CALLBACK(copyin, ep->ev_value, addr, 109 strlen(ep->ev_value)); 110 addr += strlen(ep->ev_value); 111 } 112 CALLBACK(copyin, "", addr, 1); 113 addr++; 114 } 115 CALLBACK(copyin, "", addr, 1); 116 addr++; 117 return (addr); 118 } 119