#include "opt_rootdevname.h"
#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/cons.h>
#include <sys/fcntl.h>
#include <sys/jail.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mdioctl.h>
#include <sys/mount.h>
#include <sys/mutex.h>
#include <sys/namei.h>
#include <sys/priv.h>
#include <sys/proc.h>
#include <sys/filedesc.h>
#include <sys/reboot.h>
#include <sys/sbuf.h>
#include <sys/stat.h>
#include <sys/syscallsubr.h>
#include <sys/sysproto.h>
#include <sys/sx.h>
#include <sys/sysctl.h>
#include <sys/sysent.h>
#include <sys/systm.h>
#include <sys/vnode.h>
#include <geom/geom.h>

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Data Structures
struct	root_hold_token

Macros
#define	CC_WHITESPACE -1

#define	CC_NONWHITESPACE -2

#define	PE_EOF -1

#define	PE_EOL -2

#define	ERRMSGL 255

Functions
	__FBSDID ("$BSDSUniX$")

static int	parse_mount (char **)

static struct mntarg *	parse_mountroot_options (struct mntarg , const char )

	MTX_SYSINIT (root_holds,&root_holds_mtx,"root_holds", MTX_DEF)

static	LIST_HEAD (root_hold_token)

	TUNABLE_INT ("vfs.mountroot.timeout",&root_mount_timeout)

struct root_hold_token *	root_mount_hold (const char *identifier)

void	root_mount_rel (struct root_hold_token *h)

int	root_mounted (void)

void	root_mount_wait (void)

static void	set_rootvnode (void)

static int	vfs_mountroot_devfs (struct thread td, struct mount *mpp)

static int	vfs_mountroot_shuffle (struct thread td, struct mount mpdevfs)

static __inline int	parse_peek (char **conf)

static __inline void	parse_poke (char **conf, int c)

static __inline void	parse_advance (char **conf)

static int	parse_skipto (char **conf, int mc)

static int	parse_token (char conf, char tok)

static void	parse_dir_ask_printenv (const char *var)

static int	parse_dir_ask (char **conf)

static int	parse_dir_md (char **conf)

static int	parse_dir_onfail (char **conf)

static int	parse_dir_timeout (char **conf)

static int	parse_directive (char **conf)

static int	parse_mount_dev_present (const char *dev)

static int	vfs_mountroot_parse (struct sbuf sb, struct mount mpdevfs)

static void	vfs_mountroot_conf0 (struct sbuf *sb)

static int	vfs_mountroot_readconf (struct thread td, struct sbuf sb)

static void	vfs_mountroot_wait (void)

void	vfs_mountroot (void)

Variables
struct vnode *	rootvnode

char *	rootdevnames [2] = {NULL, NULL}

struct mtx	root_holds_mtx

static enum action	root_mount_onfail = A_CONTINUE

static int	root_mount_mddev

static int	root_mount_complete

static int	root_mount_timeout = 3

Macro Definition Documentation

#define CC_NONWHITESPACE -2

Definition at line 368 of file vfs_mountroot.c.

Referenced by parse_skipto(), parse_token(), and vfs_mountroot_parse().

#define CC_WHITESPACE -1

Definition at line 367 of file vfs_mountroot.c.

Referenced by parse_skipto(), and parse_token().

#define ERRMSGL 255

Definition at line 670 of file vfs_mountroot.c.

Referenced by parse_mount().

#define PE_EOF -1

Definition at line 371 of file vfs_mountroot.c.

Referenced by parse_skipto().

#define PE_EOL -2

Definition at line 372 of file vfs_mountroot.c.

Referenced by parse_skipto(), and vfs_mountroot_parse().

Function Documentation

__FBSDID ( "$BSDSUniX$" )

static LIST_HEAD ( root_hold_token )

static

Definition at line 108 of file vfs_mountroot.c.

MTX_SYSINIT	(	root_holds	,
		&	root_holds_mtx,
		"root_holds"	,
		MTX_DEF
	)

static __inline void parse_advance ( char ** conf )

static

Definition at line 389 of file vfs_mountroot.c.

Referenced by parse_mount(), parse_skipto(), and vfs_mountroot_parse().

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static int parse_dir_ask ( char ** conf )

static

Definition at line 456 of file vfs_mountroot.c.

References cngets(), hz, name, parse_dir_ask_printenv(), parse_mount(), pause(), and printf().

Referenced by parse_directive().

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static void parse_dir_ask_printenv ( const char * var )

static

Definition at line 444 of file vfs_mountroot.c.

References freeenv(), getenv(), and printf().

Referenced by parse_dir_ask().

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static int parse_dir_md ( char ** conf )

static

Definition at line 506 of file vfs_mountroot.c.

References fd, free(), kern_close(), kern_ioctl(), kern_open(), kern_stat(), malloc(), parse_token(), path, printf(), and root_mount_mddev.

Referenced by parse_directive().

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static int parse_dir_onfail ( char ** conf )

static

Definition at line 583 of file vfs_mountroot.c.

References free(), parse_token(), and printf().

Referenced by parse_directive().

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static int parse_dir_timeout ( char ** conf )

static

Definition at line 610 of file vfs_mountroot.c.

References free(), and parse_token().

Referenced by parse_directive().

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static int parse_directive ( char ** conf )

static

Definition at line 629 of file vfs_mountroot.c.

References free(), parse_dir_ask(), parse_dir_md(), parse_dir_onfail(), parse_dir_timeout(), parse_skipto(), parse_token(), and printf().

Referenced by vfs_mountroot_parse().

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static int parse_mount ( char ** conf )

static

Definition at line 672 of file vfs_mountroot.c.

References ERRMSGL, mntarg::error, free(), hz, kernel_mount(), malloc(), mount_arg(), parse_advance(), parse_mount_dev_present(), parse_mountroot_options(), parse_poke(), parse_skipto(), parse_token(), pause(), printf(), root_mount_mddev, timeout(), and vfs_byname().

Referenced by parse_dir_ask(), and vfs_mountroot_parse().

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static int parse_mount_dev_present ( const char * dev )

static

Definition at line 657 of file vfs_mountroot.c.

References namei(), NDFREE(), and vput().

Referenced by parse_mount().

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static struct mntarg * parse_mountroot_options	(	struct mntarg *	ma,
		const char *	options
	)

static

Definition at line 997 of file vfs_mountroot.c.

References free(), mount_arg(), and name.

Referenced by parse_mount().

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static __inline int parse_peek ( char ** conf )

static

Definition at line 375 of file vfs_mountroot.c.

Referenced by parse_skipto(), and vfs_mountroot_parse().

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static __inline void parse_poke	(	char **	conf,
		int	c
	)

static

Definition at line 382 of file vfs_mountroot.c.

Referenced by parse_mount().

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static int parse_skipto	(	char **	conf,
		int	mc
	)

static

Definition at line 396 of file vfs_mountroot.c.

References CC_NONWHITESPACE, CC_WHITESPACE, parse_advance(), parse_peek(), PE_EOF, and PE_EOL.

Referenced by parse_directive(), parse_mount(), parse_token(), and vfs_mountroot_parse().

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static int parse_token	(	char **	conf,
		char **	tok
	)

static

Definition at line 425 of file vfs_mountroot.c.

References CC_NONWHITESPACE, CC_WHITESPACE, malloc(), and parse_skipto().

Referenced by parse_dir_md(), parse_dir_onfail(), parse_dir_timeout(), parse_directive(), parse_mount(), and vfs_mountroot_conf0().

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struct root_hold_token* root_mount_hold ( const char * identifier )

Definition at line 128 of file vfs_mountroot.c.

References malloc(), root_holds_mtx, root_mounted(), and root_hold_token::who.

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void root_mount_rel ( struct root_hold_token * h )

Definition at line 144 of file vfs_mountroot.c.

References free(), root_holds_mtx, and wakeup().

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void root_mount_wait ( void )

Definition at line 165 of file vfs_mountroot.c.

References hz, and root_holds_mtx.

int root_mounted ( void )

Definition at line 157 of file vfs_mountroot.c.

Referenced by root_mount_hold().

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static void set_rootvnode ( void )

static

Definition at line 183 of file vfs_mountroot.c.

References mountlist, panic(), rootvnode, and vrele().

Referenced by vfs_mountroot_devfs(), and vfs_mountroot_shuffle().

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TUNABLE_INT	(	"vfs.mountroot.timeout"	,
		&	root_mount_timeout
	)

void vfs_mountroot ( void )

Definition at line 934 of file vfs_mountroot.c.

References inittodr(), mountlist, mountlist_mtx, prison0, root_holds_mtx, rootvnode, sbuf_clear(), sbuf_delete(), sbuf_finish(), vfs_mountroot_conf0(), vfs_mountroot_devfs(), vfs_mountroot_parse(), vfs_mountroot_readconf(), vfs_mountroot_shuffle(), vfs_mountroot_wait(), vref(), and wakeup().

Referenced by start_init().

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static void vfs_mountroot_conf0 ( struct sbuf * sb )

static

Definition at line 820 of file vfs_mountroot.c.

References boothowto, free(), freeenv(), getenv(), parse_token(), rootdevnames, and sbuf_printf().

Referenced by vfs_mountroot().

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static int vfs_mountroot_devfs	(	struct thread *	td,
		struct mount **	mpp
	)

static

Definition at line 209 of file vfs_mountroot.c.

References kern_symlink(), malloc(), mountlist, mountlist_mtx, printf(), set_rootvnode(), vfs_byname(), vfs_mount_alloc(), and vfsconf.

Referenced by vfs_mountroot().

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static int vfs_mountroot_parse	(	struct sbuf *	sb,
		struct mount *	mpdevfs
	)

static

Definition at line 756 of file vfs_mountroot.c.

References CC_NONWHITESPACE, kern_reboot(), panic(), parse_advance(), parse_directive(), parse_mount(), parse_peek(), parse_skipto(), PE_EOL, printf(), and sbuf_data().

Referenced by vfs_mountroot().

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static int vfs_mountroot_readconf	(	struct thread *	td,
		struct sbuf *	sb
	)

static

Definition at line 867 of file vfs_mountroot.c.

References buf, NDFREE(), sbuf_printf(), vn_close(), vn_open(), and vn_rdwr().

Referenced by vfs_mountroot().

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static int vfs_mountroot_shuffle	(	struct thread *	td,
		struct mount *	mpdevfs
	)

static

Definition at line 249 of file vfs_mountroot.c.

References bootverbose, cache_purge(), cache_purgevfs(), kern_unlink(), mountlist, mountlist_mtx, namei(), NDFREE(), printf(), rootvnode, set_rootvnode(), vfs_unbusy(), vinvalbuf(), vput(), and vrele().

Referenced by vfs_mountroot().

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static void vfs_mountroot_wait ( void )

static

Definition at line 906 of file vfs_mountroot.c.

References hz, ppsratecheck(), printf(), root_holds_mtx, and root_hold_token::who.

Referenced by vfs_mountroot().

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Variable Documentation

struct mtx root_holds_mtx

Definition at line 100 of file vfs_mountroot.c.

Referenced by root_mount_hold(), root_mount_rel(), root_mount_wait(), vfs_mountroot(), and vfs_mountroot_wait().

int root_mount_complete

static

Definition at line 121 of file vfs_mountroot.c.

int root_mount_mddev

static

Definition at line 120 of file vfs_mountroot.c.

Referenced by parse_dir_md(), and parse_mount().

enum action root_mount_onfail = A_CONTINUE

static

Definition at line 118 of file vfs_mountroot.c.

int root_mount_timeout = 3

static

Definition at line 124 of file vfs_mountroot.c.

char* rootdevnames[2] = {NULL, NULL}

Definition at line 98 of file vfs_mountroot.c.

Referenced by vfs_mountroot_conf0().

struct vnode* rootvnode

Definition at line 96 of file vfs_mountroot.c.

Referenced by change_root(), dounmount(), firmware_modevent(), linker_load_module(), lookup(), mountcheckdirs(), set_rootvnode(), vfs_mountroot(), vfs_mountroot_shuffle(), vn_fullpath1(), and vn_fullpath_global().

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation