diff options
Diffstat (limited to 'stand/userboot/userboot/bootinfo.c')
| -rw-r--r-- | stand/userboot/userboot/bootinfo.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/stand/userboot/userboot/bootinfo.c b/stand/userboot/userboot/bootinfo.c new file mode 100644 index 000000000000..289ca071fe89 --- /dev/null +++ b/stand/userboot/userboot/bootinfo.c @@ -0,0 +1,170 @@ +/*- + * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <stand.h> +#include <sys/param.h> +#include <sys/reboot.h> +#include <sys/linker.h> +#include <sys/boot.h> + +#include "bootstrap.h" +#include "libuserboot.h" + +int +bi_getboothowto(char *kargs) +{ + char *cp; + char *curpos, *next, *string; + int howto; + int active; + int i; + int vidconsole; + + /* Parse kargs */ + howto = 0; + if (kargs != NULL) { + cp = kargs; + active = 0; + while (*cp != 0) { + if (!active && (*cp == '-')) { + active = 1; + } else if (active) + switch (*cp) { + case 'a': + howto |= RB_ASKNAME; + break; + case 'C': + howto |= RB_CDROM; + break; + case 'd': + howto |= RB_KDB; + break; + case 'D': + howto |= RB_MULTIPLE; + break; + case 'm': + howto |= RB_MUTE; + break; + case 'g': + howto |= RB_GDB; + break; + case 'h': + howto |= RB_SERIAL; + break; + case 'p': + howto |= RB_PAUSE; + break; + case 'r': + howto |= RB_DFLTROOT; + break; + case 's': + howto |= RB_SINGLE; + break; + case 'v': + howto |= RB_VERBOSE; + break; + default: + active = 0; + break; + } + cp++; + } + } + /* get equivalents from the environment */ + for (i = 0; howto_names[i].ev != NULL; i++) + if (getenv(howto_names[i].ev) != NULL) + howto |= howto_names[i].mask; + + /* Enable selected consoles */ + string = next = strdup(getenv("console")); + vidconsole = 0; + while (next != NULL) { + curpos = strsep(&next, " ,"); + if (*curpos == '\0') + continue; + if (!strcmp(curpos, "vidconsole")) + vidconsole = 1; + else if (!strcmp(curpos, "comconsole")) + howto |= RB_SERIAL; + else if (!strcmp(curpos, "nullconsole")) + howto |= RB_MUTE; + } + + if (vidconsole && (howto & RB_SERIAL)) + howto |= RB_MULTIPLE; + + /* + * XXX: Note that until the kernel is ready to respect multiple consoles + * for the boot messages, the first named console is the primary console + */ + if (!strcmp(string, "vidconsole")) + howto &= ~RB_SERIAL; + + free(string); + + return(howto); +} + +void +bi_setboothowto(int howto) +{ + int i; + + for (i = 0; howto_names[i].ev != NULL; i++) + if (howto & howto_names[i].mask) + setenv(howto_names[i].ev, "YES", 1); +} + +/* + * Copy the environment into the load area starting at (addr). + * Each variable is formatted as <name>=<value>, with a single nul + * separating each variable, and a double nul terminating the environment. + */ +vm_offset_t +bi_copyenv(vm_offset_t addr) +{ + struct env_var *ep; + + /* traverse the environment */ + for (ep = environ; ep != NULL; ep = ep->ev_next) { + CALLBACK(copyin, ep->ev_name, addr, strlen(ep->ev_name)); + addr += strlen(ep->ev_name); + CALLBACK(copyin, "=", addr, 1); + addr++; + if (ep->ev_value != NULL) { + CALLBACK(copyin, ep->ev_value, addr, strlen(ep->ev_value)); + addr += strlen(ep->ev_value); + } + CALLBACK(copyin, "", addr, 1); + addr++; + } + CALLBACK(copyin, "", addr, 1); + addr++; + return(addr); +} |