Subversion Repositories planix.SVN

#ifndef _9FS_9P_H_

#define _9FS_9P_H_

#define U9FS_AUTHLEN 13

#define U9FS_NAMELEN    28

#define U9FS_TICKETLEN  72

#define U9FS_ERRLEN     64

#define U9FS_DOMLEN     48

#define U9FS_CHALLEN    8

#define U9FS_DIRLEN     116

#define U9FS_MAXFDATA  8192

#define U9FS_MAXDDATA  (((int)U9FS_MAXFDATA/U9FS_DIRLEN)*U9FS_DIRLEN)

#define U9P_MODE_RD    0x0

#define U9P_MODE_WR    0x1

#define U9P_MODE_RDWR  0x2

#define U9P_MODE_EX    0x3

#define U9P_MODE_TRUNC 0x10

#define U9P_MODE_CLOSE 0x40

#define U9P_PERM_CHDIR(m) (0x80000000&(m))

#define U9P_PERM_OWNER(m) ((m)&0x7)

#define U9P_PERM_GROUP(m) (((m)>>3)&0x7)

#define U9P_PERM_OTHER(m) (((m)>>6)&0x7)

#define U9P_PERM_ALL(m)   ((m)&0777)

#define U9P_PERM_EXCL(m)    ((m)&0x20000000)

#define U9P_PERM_APPEND(m)  ((m)&0x40000000)

#define U9P_PERM_NONPERM(m) ((m)&0xfffffe00)

/* this is too small */

typedef u_int32_t u9fsfh_t;

struct u9fs_qid {

	u9fsfh_t	path;

	u_int32_t	vers;

};

struct	u9fsreq {

  TAILQ_ENTRY(u9fsreq) r_chain;

  struct u9fsreq * r_rep;

  struct mbuf * r_mrep;

  struct proc	*r_procp;	/* Proc that did I/O system call */

  struct u9fsmount *r_nmp;

  /* actual content of the 9P message */

	char	r_type;

	short	r_fid;

	u_short	r_tag;

	union {

		struct {

			u_short	oldtag;		/* Tflush */

			struct u9fs_qid qid;		/* Rattach, Rwalk, Ropen, Rcreate */

			char	rauth[U9FS_AUTHLEN];	/* Rattach */

		} u1;

		struct {

			char	uname[U9FS_NAMELEN];		/* Tattach */

			char	aname[U9FS_NAMELEN];		/* Tattach */

			char	ticket[U9FS_TICKETLEN];	/* Tattach */

			char	auth[U9FS_AUTHLEN];	/* Tattach */

		} u2;

		struct {

			char	ename[U9FS_ERRLEN];		/* Rerror */

			char	authid[U9FS_NAMELEN];	/* Rsession */

			char	authdom[U9FS_DOMLEN];	/* Rsession */

			char	chal[U9FS_CHALLEN];		/* Tsession/Rsession */

		} u3;

		struct {

			u_int32_t	perm;		/* Tcreate */ 

			short	newfid;		/* Tclone, Tclwalk */

			char	name[U9FS_NAMELEN];	/* Twalk, Tclwalk, Tcreate */

			char	mode;		/* Tcreate, Topen */

		} u4;

		struct {

			u_int64_t	offset;		/* Tread, Twrite */

			u_short	        count;		/* Tread, Twrite, Rread */

			char	*data;		/* Twrite, Rread */

		} u5;

			char	stat[U9FS_DIRLEN];	/* Twstat, Rstat */

	} u;

};

#define r_oldtag u.u1.oldtag

#define r_qid u.u1.qid

#define r_rauth u.u1.rauth

#define r_uname u.u2.uname

#define r_aname u.u2.aname

#define r_ticket  u.u2.ticket

#define r_auth  u.u2.auth

#define r_ename  u.u3.ename

#define r_authid  u.u3.authid

#define r_authdom  u.u3.authdom

#define r_chal  u.u3.chal

#define r_perm  u.u4.perm

#define r_newfid  u.u4.newfid

#define r_name  u.u4.name

#define r_mode  u.u4.mode

#define r_offset  u.u5.offset

#define r_count  u.u5.count

#define r_data  u.u5.data

#define r_stat  u.stat

struct u9fsdir {

  char	dir_name[U9FS_NAMELEN];

  char	dir_uid[U9FS_NAMELEN];

  char	dir_gid[U9FS_NAMELEN];

  struct u9fs_qid	dir_qid;

  u_int32_t	dir_mode;

  u_int32_t	dir_atime;

  u_int32_t	dir_mtime;

  union {

    u_int64_t	length;

    struct {	/* little endian */

      u_int32_t	llength;

      u_int32_t	hlength;

    } l;

  } u;

  u_short	dir_type;

  u_short	dir_dev;

};

#define dir_length u.length

#define dir_llength u.l.llength

#define dir_hlength u.l.hlength

enum

{

	Tnop =		50,

	Rnop,

	Tosession =	52,	/* illegal */

	Rosession,		/* illegal */

	Terror =	54,	/* illegal */

	Rerror,

	Tflush =	56,

	Rflush,

	Toattach =	58,	/* illegal */

	Roattach,		/* illegal */

	Tclone =	60,

	Rclone,

	Twalk =		62,

	Rwalk,

	Topen =		64,

	Ropen,

	Tcreate =	66,

	Rcreate,

	Tread =		68,

	Rread,

	Twrite =	70,

	Rwrite,

	Tclunk =	72,

	Rclunk,

	Tremove =	74,

	Rremove,

	Tstat =		76,

	Rstat,

	Twstat =	78,

	Rwstat,

	Tclwalk =	80,

	Rclwalk,

	Tauth =		82,	/* illegal */

	Rauth,			/* illegal */

	Tsession =	84,

	Rsession,

	Tattach =	86,

	Rattach,

	Ttunnel =	88,

	Rtunnel,

	Tmax

};

int u9p_m2s __P((char *ap, int n, struct u9fsreq *f));

int u9p_s2m __P((struct u9fsreq *f, char *ap, int copydata));

int u9p_m2d __P((char *ap, struct u9fsdir *f));

int u9p_d2m __P((struct u9fsdir *f, char *ap));

int u9p_type __P((char * t));

int u9p_m_m2s __P((struct mbuf **m, struct u9fsreq *f));

struct mbuf * u9p_m_s2m __P((struct u9fsreq *f));

int u9p_m_m2d __P((struct mbuf **m, struct u9fsdir *f));

struct mbuf * u9p_m_d2m __P((struct u9fsdir *f));

u_short u9p_m_tag __P((struct mbuf **m));

#endif