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
bi_getboothowto(char * kargs)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
bi_setboothowto(int howto)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
bi_copyenv(vm_offset_t addr)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