Release 4.16 fs/isofs/rock.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * These structs are used by the system-use-sharing protocol, in which the
 * Rock Ridge extensions are embedded.  It is quite possible that other
 * extensions are present on the disk, and this is fine as long as they
 * all use SUSP
 */


struct SU_SP_s {
	
__u8 magic[2];
	
__u8 skip;
} __attribute__ ((packed));


struct SU_CE_s {
	
__u8 extent[8];
	
__u8 offset[8];
	
__u8 size[8];
};


struct SU_ER_s {
	
__u8 len_id;
	
__u8 len_des;
	
__u8 len_src;
	
__u8 ext_ver;
	
__u8 data[0];
} __attribute__ ((packed));


struct RR_RR_s {
	
__u8 flags[1];
} __attribute__ ((packed));


struct RR_PX_s {
	
__u8 mode[8];
	
__u8 n_links[8];
	
__u8 uid[8];
	
__u8 gid[8];
};


struct RR_PN_s {
	
__u8 dev_high[8];
	
__u8 dev_low[8];
};


struct SL_component {
	
__u8 flags;
	
__u8 len;
	
__u8 text[0];
} __attribute__ ((packed));


struct RR_SL_s {
	
__u8 flags;
	
struct SL_component link;
} __attribute__ ((packed));


struct RR_NM_s {
	
__u8 flags;
	
char name[0];
} __attribute__ ((packed));


struct RR_CL_s {
	
__u8 location[8];
};


struct RR_PL_s {
	
__u8 location[8];
};


struct stamp {
	
__u8 time[7];		/* actually 6 unsigned, 1 signed */
} __attribute__ ((packed));


struct RR_TF_s {
	
__u8 flags;
	
struct stamp times[0];	/* Variable number of these beasts */
} __attribute__ ((packed));

/* Linux-specific extension for transparent decompression */

struct RR_ZF_s {
	
__u8 algorithm[2];
	
__u8 parms[2];
	
__u8 real_size[8];
};

/*
 * These are the bits and their meanings for flags in the TF structure.
 */

#define TF_CREATE 1

#define TF_MODIFY 2

#define TF_ACCESS 4

#define TF_ATTRIBUTES 8

#define TF_BACKUP 16

#define TF_EXPIRATION 32

#define TF_EFFECTIVE 64

#define TF_LONG_FORM 128


struct rock_ridge {
	
__u8 signature[2];
	
__u8 len;
	
__u8 version;
	
union {
		
struct SU_SP_s SP;
		
struct SU_CE_s CE;
		
struct SU_ER_s ER;
		
struct RR_RR_s RR;
		
struct RR_PX_s PX;
		
struct RR_PN_s PN;
		
struct RR_SL_s SL;
		
struct RR_NM_s NM;
		
struct RR_CL_s CL;
		
struct RR_PL_s PL;
		
struct RR_TF_s TF;
		
struct RR_ZF_s ZF;
	
} u;
};


#define RR_PX 1			
/* POSIX attributes */

#define RR_PN 2			
/* POSIX devices */

#define RR_SL 4			
/* Symbolic link */

#define RR_NM 8			
/* Alternate Name */

#define RR_CL 16		
/* Child link */

#define RR_PL 32		
/* Parent link */

#define RR_RE 64		
/* Relocation directory */

#define RR_TF 128		
/* Timestamps */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
296
69.32%
1
14.29%
Linus Torvalds
71
16.63%
1
14.29%
Arnd Bergmann
33
7.73%
2
28.57%
Andrew Morton
26
6.09%
2
28.57%
Greg Kroah-Hartman
1
0.23%
1
14.29%
Total
427
100.00%
7
100.00%
Directory: fs/isofs

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