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Add a new installer image for Raspberry PI to evbarm

Includes the following major changes:

1) Add new configmenu item to sysinst to allow creation of users at
post-install time.
2) Add an sshramdisk type to evbarm, which is a ramdisk with sshd
enabled, allowing users to install on a headless PI by sshing to the
device with the account "sysinst" password "netbsd" to begin the
installation. (Note, neither the account, nor the ssh setup are copied to
the finalized installation image)
3) Change mkimage to build a boot-only image, without the root filesystems.

Much of the sshramdisk code could be reused on other ports easily.

/*	$NetBSD: defs.h,v 1.166 2013/03/19 22:16:53 garbled Exp $	*/

/*
 * Copyright 1997 Piermont Information Systems Inc.
 * All rights reserved.
 *
 * Written by Philip A. Nelson for Piermont Information Systems Inc.
 *
 * 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.
 * 3. The name of Piermont Information Systems Inc. may not be used to endorse
 *    or promote products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``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 PIERMONT INFORMATION SYSTEMS INC. 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.
 *
 */

#ifndef _DEFS_H_
#define _DEFS_H_

/* defs.h -- definitions for use in the sysinst program. */

/* System includes needed for this. */
#include <sys/types.h>
#include <sys/disklabel.h>

const char *getfslabelname(uint8_t);

static inline void *
deconst(const void *p)
{
	return (char *)0 + ((const char *)p - (const char *)0);
}

#include "msg_defs.h"
#include "menu_defs.h"

#define min(a,b)	((a) < (b) ? (a) : (b))
#define max(a,b)	((a) > (b) ? (a) : (b))

/* constants */
#define MEG (1024 * 1024)
#define STRSIZE 255
#define SSTRSIZE 30

/* For run.c: collect() */
#define T_FILE		0
#define T_OUTPUT	1

/* Some install status/response values */
#define	SET_OK		0		/* Set extracted */
#define	SET_RETRY	1		/* Retry */
#define	SET_SKIP	2		/* Skip this set */
#define	SET_SKIP_GROUP	3		/* Skip this set and rest of group */
#define	SET_ABANDON	4		/* Abandon installation */
#define	SET_CONTINUE	5		/* Continue (copy from floppy loop) */

/* run_prog flags */
#define RUN_DISPLAY	0x0001		/* Display program output */
#define RUN_FATAL	0x0002		/* errors are fatal */
#define RUN_CHROOT	0x0004		/* chroot to target disk */
#define RUN_FULLSCREEN	0x0008		/* fullscreen (use with RUN_DISPLAY) */
#define RUN_SILENT	0x0010		/* Do not show output */
#define RUN_ERROR_OK	0x0040		/* Don't wait for error confirmation */
#define RUN_PROGRESS	0x0080		/* Output is just progess test */
#define RUN_NO_CLEAR	0x0100		/* Leave program output after error */
#define RUN_XFER_DIR	0x0200		/* cd to xfer_dir in child */

/* Installation sets */
enum {
    SET_NONE,
    SET_KERNEL_FIRST,
    SET_KERNEL_1,	/* Usually GENERIC */
    SET_KERNEL_2,	/* MD kernel... */
    SET_KERNEL_3,	/* MD kernel... */
    SET_KERNEL_4,	/* MD kernel... */
    SET_KERNEL_5,	/* MD kernel... */
    SET_KERNEL_6,	/* MD kernel... */
    SET_KERNEL_7,	/* MD kernel... */
    SET_KERNEL_8,	/* MD kernel... */
    SET_KERNEL_LAST,	/* allow 8 kernels */

    /* System sets */
    SET_BASE,		/* base */
    SET_ETC,		/* /etc */
    SET_COMPILER,	/* compiler tools */
    SET_GAMES,		/* text games */
    SET_MAN_PAGES,	/* online manual pages */
    SET_MISC,		/* miscellaneuous */
    SET_MODULES,	/* kernel modules */
    SET_TESTS,		/* tests */
    SET_TEXT_TOOLS,	/* text processing tools */

    /* X11 sets */
    SET_X11_FIRST,
    SET_X11_BASE,	/* X11 base and clients */
    SET_X11_FONTS,	/* X11 fonts */
    SET_X11_SERVERS,	/* X11 servers */
    SET_X11_PROG,	/* X11 programming */
    SET_X11_ETC,	/* X11 config */
    SET_X11_LAST,

    /* Machine dependent sets */
    SET_MD_1,		/* Machine dependent set */
    SET_MD_2,		/* Machine dependent set */
    SET_MD_3,		/* Machine dependent set */
    SET_MD_4,		/* Machine dependent set */
    
    /* Source sets */
    SET_SYSSRC,
    SET_SRC,
    SET_SHARESRC,
    SET_GNUSRC,
    SET_XSRC,

    /* Debug sets */
    SET_DEBUG,
    SET_X11_DEBUG,

    SET_LAST,
    SET_GROUP,		/* Start of submenu */
    SET_GROUP_END,	/* End of submenu */
    SET_PKGSRC,		/* pkgsrc, not counted as regular set */
};

/* Initialisers to select sets */
/* All kernels */
#define SET_KERNEL SET_KERNEL_1, SET_KERNEL_2, SET_KERNEL_3, SET_KERNEL_4, \
		    SET_KERNEL_5, SET_KERNEL_6, SET_KERNEL_7, SET_KERNEL_8
/* Core system sets */
#define SET_CORE SET_MODULES, SET_BASE, SET_ETC
/* All system sets */
#define SET_SYSTEM SET_CORE, SET_COMPILER, SET_GAMES, \
		    SET_MAN_PAGES, SET_MISC, SET_TESTS, SET_TEXT_TOOLS
/* All X11 sets */
#define SET_X11_NOSERVERS SET_X11_BASE, SET_X11_FONTS, SET_X11_PROG, SET_X11_ETC
#define SET_X11 SET_X11_NOSERVERS, SET_X11_SERVERS

/* All machine dependent sets */
#define SET_MD SET_MD_1, SET_MD_2, SET_MD_3, SET_MD_4

/* All source sets */
#define SET_SOURCE SET_SYSSRC, SET_SRC, SET_SHARESRC, SET_GNUSRC, SET_XSRC

/* All debug sets */
#define SET_DEBUGGING SET_DEBUG, SET_X11_DEBUG

/* Set list flags */
#define SFLAG_MINIMAL	1
#define	SFLAG_NOX	2

/* Macros */
#define nelem(x) (sizeof (x) / sizeof *(x))

/* Round up to the next full cylinder size */
#define NUMSEC(size, sizemult, cylsize) \
	((size) == ~0u ? ~0u : (sizemult) == 1 ? (size) : \
	 roundup((size) * (sizemult), (cylsize)))

/* What FS type? */
#define PI_ISBSDFS(p) ((p)->pi_fstype == FS_BSDLFS || \
		       (p)->pi_fstype == FS_BSDFFS)

/* standard cd0 device */
#define CD_NAMES "cd0a"

/* Types */
typedef struct distinfo {
	const char	*name;
	uint		set;
	const char	*desc;
	const char	*marker_file;	/* set assumed installed if exists */
} distinfo;

typedef struct _partinfo {
	struct partition pi_partition;
#define pi_size		pi_partition.p_size
#define pi_offset	pi_partition.p_offset
#define pi_fsize	pi_partition.p_fsize
#define pi_fstype	pi_partition.p_fstype
#define pi_frag		pi_partition.p_frag
#define pi_cpg		pi_partition.p_cpg
	char	pi_mount[20];
	uint	pi_isize;		/* bytes per inode (for # inodes) */
	uint	pi_flags;
#define PIF_NEWFS	0x0001		/* need to 'newfs' partition */
#define PIF_FFSv2	0x0002		/* newfs with FFSv2, not FFSv1 */
#define PIF_MOUNT	0x0004		/* need to mount partition */
#define PIF_ASYNC	0x0010		/* mount -o async */
#define PIF_NOATIME	0x0020		/* mount -o noatime */
#define PIF_NODEV	0x0040		/* mount -o nodev */
#define PIF_NODEVMTIME	0x0080		/* mount -o nodevmtime */
#define PIF_NOEXEC	0x0100		/* mount -o noexec */
#define PIF_NOSUID	0x0200		/* mount -o nosuid */
#define PIF__UNUSED	0x0400		/* unused */
#define PIF_LOG		0x0800		/* mount -o log */
#define PIF_MOUNT_OPTS	0x0ff0		/* all above mount flags */
#define PIF_RESET	0x1000		/* internal - restore previous values */
} partinfo;	/* Single partition from a disklabel */

struct ptn_info {
	int		menu_no;
	struct ptn_size {
		int	ptn_id;
		char	mount[20];
		daddr_t	dflt_size;
		daddr_t	size;
		int	limit;
		int	changed;
	}		ptn_sizes[MAXPARTITIONS + 1];	/* +1 for delete code */
	menu_ent	ptn_menus[MAXPARTITIONS + 1];	/* +1 for unit chg */
	int		free_parts;
	daddr_t		free_space;
	struct ptn_size	*pool_part;
	char		exit_msg[70];
};

/* variables */

int debug;		/* set by -D option */

char rel[SSTRSIZE];
char machine[SSTRSIZE];

int yesno;
int ignorerror;
int ttysig_ignore;
pid_t ttysig_forward;
int layoutkind;
int sizemult;
const char *multname;

/* loging variables */

FILE *logfp;
FILE *script;

/* Actual name of the disk. */
char diskdev[SSTRSIZE];
int no_mbr;				/* set for raid (etc) */
int rootpart;				/* partition we install into */
const char *disktype;		/* ST506, SCSI, ... */

/* Area of disk we can allocate, start and size in disk sectors. */
daddr_t ptstart, ptsize;
/* If we have an MBR boot partition, start and size in sectors */
int bootstart, bootsize;

/* Actual values for current disk - set by find_disks() or md_get_info() */
int sectorsize;
int dlcyl, dlhead, dlsec, dlcylsize;
daddr_t dlsize;
int current_cylsize;
unsigned int root_limit;		/* BIOS (etc) read limit */

/* Information for the NetBSD disklabel */
enum DLTR { PART_A, PART_B, PART_C, PART_D, PART_E, PART_F, PART_G, PART_H,
	    PART_I, PART_J, PART_K, PART_L, PART_M, PART_N, PART_O, PART_P};
#define partition_name(x)	('a' + (x))
partinfo oldlabel[MAXPARTITIONS];	/* What we found on the disk */
partinfo bsdlabel[MAXPARTITIONS];	/* What we want it to look like */
daddr_t tmp_ramdisk_size;

#define DISKNAME_SIZE 16
char bsddiskname[DISKNAME_SIZE];
const char *doessf;

/* Relative file name for storing a distribution. */
char xfer_dir[STRSIZE];
int  clean_xfer_dir;

#if !defined(SYSINST_FTP_HOST)
#define SYSINST_FTP_HOST	"ftp.NetBSD.org"
#endif

#if !defined(SYSINST_FTP_DIR)
#define SYSINST_FTP_DIR		"pub/NetBSD/NetBSD-" REL
#endif

#if !defined(SYSINST_PKG_HOST)
#define SYSINST_PKG_HOST	SYSINST_FTP_HOST
#endif

#if !defined(SYSINST_PKG_DIR)
#define SYSINST_PKG_DIR		"pub/pkgsrc/packages/NetBSD"
#endif

#if !defined(SYSINST_PKGSRC_HOST)
#define SYSINST_PKGSRC_HOST	SYSINST_PKG_HOST
#endif

/* Abs. path we extract binary sets from */
char ext_dir_bin[STRSIZE];

/* Abs. path we extract source sets from */
char ext_dir_src[STRSIZE];

/* Abs. path we extract pkgsrc from */
char ext_dir_pkgsrc[STRSIZE];

/* Place we look for binary sets in all fs types */
char set_dir_bin[STRSIZE];

/* Place we look for source sets in all fs types */
char set_dir_src[STRSIZE];

/* Place we look for pkgs in all fs types */
char pkg_dir[STRSIZE];

/* Place we look for pkgsrc in all fs types */
char pkgsrc_dir[STRSIZE];

/* User shell */
const char *ushell;

struct ftpinfo {
    char host[STRSIZE];
    char dir[STRSIZE] ;
    char user[SSTRSIZE];
    char pass[STRSIZE];
    char proxy[STRSIZE];
    const char *xfer_type;		/* "ftp" or "http" */
};

/* use the same struct for sets ftp and to build pkgpath */
struct ftpinfo ftp, pkg, pkgsrc;

int (*fetch_fn)(const char *);
char nfs_host[STRSIZE];
char nfs_dir[STRSIZE];

char cdrom_dev[SSTRSIZE];		/* Typically "cd0a" */
char fd_dev[SSTRSIZE];			/* Typically "/dev/fd0a" */
const char *fd_type;			/* "msdos", "ffs" or maybe "ados" */

char localfs_dev[SSTRSIZE];
char localfs_fs[SSTRSIZE];
char localfs_dir[STRSIZE];

char targetroot_mnt[SSTRSIZE];

int  mnt2_mounted;

char dist_postfix[SSTRSIZE];

/* needed prototypes */
void set_menu_numopts(int, int);

/* Machine dependent functions .... */
void	md_init(void);
void	md_prelim_menu(void);
void	md_init_set_status(int); /* SFLAG_foo */

 /* MD functions if user selects install - in order called */
int	md_get_info(void);
int	md_make_bsd_partitions(void);
int	md_check_partitions(void);
int	md_pre_disklabel(void);
int	md_post_disklabel(void);
int	md_pre_mount(void);
int	md_post_newfs(void);
int	md_post_extract(void);
void	md_cleanup_install(void);

 /* MD functions if user selects upgrade - in order called */
int	md_pre_update(void);
int	md_update(void);
/* Also calls md_post_extract() */

/* from main.c */
void	toplevel(void);

/* from disks.c */
const char *get_default_cdrom(void);
int	find_disks(const char *);
struct menudesc;
void	fmt_fspart(struct menudesc *, int, void *);
void	disp_cur_fspart(int, int);
int	write_disklabel(void);
int	make_filesystems(void);
int	make_fstab(void);
int	mount_disks(void);
int	set_swap(const char *, partinfo *);
int	check_swap(const char *, int);
char	*bootxx_name(void);

/* from disks_lfs.c */
int	fs_is_lfs(void *);

/* from label.c */
const char *get_last_mounted(int, int, partinfo *);
int	savenewlabel(partinfo *, int);
int	incorelabel(const char *, partinfo *);
int	edit_and_check_label(partinfo *, int, int, int);
void	set_bsize(partinfo *, int);
void	set_fsize(partinfo *, int);
void	set_ptype(partinfo *, int, int);

/* from install.c */
void	do_install(void);

/* from factor.c */
void	factor(long, long *, int, int *);

/* from fdisk.c */
void	get_disk_info(char *);
void	set_disk_info(char *);

/* from geom.c */
int	get_geom(const char *, struct disklabel *);
int	get_real_geom(const char *, struct disklabel *);

/* from net.c */
extern int network_up;
extern char net_namesvr6[STRSIZE];
int	get_via_ftp(const char *);
int	get_via_nfs(void);
int	config_network(void);
void	mnt_net_config(void);
void	make_url(char *, struct ftpinfo *, const char *);
int	get_pkgsrc(void);

/* From run.c */
int	collect(int, char **, const char *, ...) __printflike(3, 4);
int	run_program(int, const char *, ...) __printflike(2, 3);
void	do_logging(void);
int	do_system(const char *);

/* from upgrade.c */
void	do_upgrade(void);
void	do_reinstall_sets(void);
void	restore_etc(void);

/* from util.c */
int	dir_exists_p(const char *);
int	file_exists_p(const char *);
int	file_mode_match(const char *, unsigned int);
uint	get_ramsize(void);
void	ask_sizemult(int);
void	run_makedev(void);
int	boot_media_still_needed(void);
int	get_via_floppy(void);
int	get_via_cdrom(void);
int	get_via_localfs(void);
int	get_via_localdir(void);
void	show_cur_distsets(void);
void	make_ramdisk_dir(const char *);
void    set_kernel_set(unsigned int);
unsigned int    get_kernel_set(void);
unsigned int    set_X11_selected(void);
int 	get_and_unpack_sets(int, msg, msg, msg);
int	sanity_check(void);
int	set_timezone(void);
void	scripting_fprintf(FILE *, const char *, ...) __printflike(2, 3);
void	scripting_vfprintf(FILE *, const char *, va_list) __printflike(2, 0);
void	add_rc_conf(const char *, ...);
int	del_rc_conf(const char *);
void	add_sysctl_conf(const char *, ...) __printflike(1, 2);
void	enable_rc_conf(void);
void	set_sizemultname_cyl(void);
void	set_sizemultname_meg(void);
int	check_lfs_progs(void);
void	init_set_status(int);
void	customise_sets(void);
void	umount_mnt2(void);
int 	set_is_source(const char *);
const char *set_dir_for_set(const char *);
const char *ext_dir_for_set(const char *);
void	replace(const char *, const char *, ...);
void	get_tz_default(void);
int	extract_file(distinfo *, int);

/* from target.c */
#if defined(DEBUG)  ||	defined(DEBUG_ROOT)
void	backtowin(void);
#endif
const	char *concat_paths(const char *, const char *);
const	char *target_expand(const char *);
void	make_target_dir(const char *);
void	append_to_target_file(const char *, const char *);
void	echo_to_target_file(const char *, const char *);
void	sprintf_to_target_file(const char *, const char *, ...)
    __printflike(2, 3);
void	trunc_target_file(const char *);
const	char *target_prefix(void);
int	target_chdir(const char *);
void	target_chdir_or_die(const char *);
int	target_already_root(void);
FILE	*target_fopen(const char *, const char *);
int	target_collect_file(int, char **, const char *);
int	is_active_rootpart(const char *, int);
int	cp_to_target(const char *, const char *);
void	dup_file_into_target(const char *);
void	mv_within_target_or_die(const char *, const char *);
int	cp_within_target(const char *, const char *, int);
int	target_mount(const char *, const char *, int, const char *);
int	target_test(unsigned int, const char *);
int	target_dir_exists_p(const char *);
int	target_file_exists_p(const char *);
int	target_symlink_exists_p(const char *);
void	unwind_mounts(void);
int	target_mounted(void);

/* from bsddisklabel.c */
int	make_bsd_partitions(void);
int	save_ptn(int, daddr_t, daddr_t, int, const char *);
void	set_ptn_titles(menudesc *, int, void *);
void	set_ptn_menu(struct ptn_info *);
int	set_ptn_size(menudesc *, void *);
void	get_ptn_sizes(daddr_t, daddr_t, int);

/* from aout2elf.c */
int move_aout_libs(void);

#ifdef WSKBD
void	get_kb_encoding(void);
void	save_kb_encoding(void);
#else
#define	get_kb_encoding()
#define	save_kb_encoding()
#endif

/* from configmenu.c */
void	do_configmenu(void);

/* from checkrc.c */
int	check_rcvar(const char *);
int	check_rcdefault(const char *);
#endif	/* _DEFS_H_ */