2 * ----------------------------------------------------------------------------
3 * "THE BEER-WARE LICENSE" (Revision 42):
4 * <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
5 * can do whatever you want with this stuff. If we meet some day, and you think
6 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
7 * ----------------------------------------------------------------------------
17 /* You can define a particular architecture here if you are debugging. */
18 /* #define P_DEBUG p_sparc64 */
20 #define MAX_NO_DISKS 32
21 /* Max # of disks Disk_Names() will return */
23 #define MAX_SEC_SIZE 2048 /* maximum sector size that is supported */
24 #define MIN_SEC_SIZE 512 /* the sector size to end sensing at */
27 p_any, /* for debugging ! */
37 extern const enum platform platform;
76 #if defined(__i386__) || defined(__amd64__) /* the i386 needs extra help... */
80 u_long sector_size; /* media sector size, a power of 2 */
90 u_int gpt_size; /* Number of entries */
101 char *sname; /* PC98 field */
104 /* Used during Fixup_Names() to avoid renaming more than
110 void (*private_free)(void*);
111 void *(*private_clone)(void*);
113 /* For data private to the application, and the management
114 * thereof. If the functions are not provided, no storage
115 * management is done, Cloning will just copy the pointer
116 * and freeing will just forget it.
123 * ALIGN - This chunk should be aligned
124 * IS_ROOT - This 'part' is a rootfs, allocate 'a'
125 * ACTIVE - This is the active slice in the MBR
126 * FORCE_ALL - Force a dedicated disk for FreeBSD, bypassing
127 * all BIOS geometry considerations
128 * AUTO_SIZE - This chunk was auto-sized and can fill-out a
129 * following chunk if the following chunk is deleted.
130 * NEWFS - newfs pending, used to enable auto-resizing on
131 * delete (along with AUTO_SIZE).
134 #define CHUNK_ALIGN 0x0008
135 #define CHUNK_IS_ROOT 0x0010
136 #define CHUNK_ACTIVE 0x0020
137 #define CHUNK_FORCE_ALL 0x0040
138 #define CHUNK_AUTO_SIZE 0x0080
139 #define CHUNK_NEWFS 0x0100
140 #define CHUNK_HAS_INDEX 0x0200
141 #define CHUNK_ITOF(i) ((i & 0xFFFF) << 16)
142 #define CHUNK_FTOI(f) ((f >> 16) & 0xFFFF)
144 #define DELCHUNK_NORMAL 0x0000
145 #define DELCHUNK_RECOVER 0x0001
147 const char *chunk_name(chunk_e);
150 slice_type_name(int, int);
151 /* "chunk_n" for subtypes too */
154 Open_Disk(const char *);
155 /* Will open the named disk, and return populated tree. */
158 Free_Disk(struct disk *);
159 /* Free a tree made with Open_Disk() or Clone_Disk() */
162 Debug_Disk(struct disk *);
163 /* Print the content of the tree to stdout */
166 Set_Bios_Geom(struct disk *, u_long, u_long, u_long);
167 /* Set the geometry the bios uses. */
170 Sanitize_Bios_Geom(struct disk *);
171 /* Set the bios geometry to something sane */
174 Insert_Chunk(struct chunk *, daddr_t, daddr_t, const char *, chunk_e, int,
175 u_long, const char *);
178 Delete_Chunk2(struct disk *, struct chunk *, int);
179 /* Free a chunk of disk_space modified by the passed flags. */
182 Delete_Chunk(struct disk *, struct chunk *);
183 /* Free a chunk of disk_space */
186 Collapse_Disk(struct disk *);
187 /* Experimental, do not use. */
190 Collapse_Chunk(struct disk *, struct chunk *);
191 /* Experimental, do not use. */
194 Create_Chunk(struct disk *, daddr_t, daddr_t, chunk_e, int, u_long, const char *);
195 /* Create a chunk with the specified paramters */
198 All_FreeBSD(struct disk *, int);
200 * Make one FreeBSD chunk covering the entire disk;
201 * if force_all is set, bypass all BIOS geometry
206 CheckRules(const struct disk *);
207 /* Return char* to warnings about broken design rules in this disklayout */
212 * Return char** with all disk's names (wd0, wd1 ...). You must free
213 * each pointer, as well as the array by hand
218 Set_Boot_Mgr(struct disk *, const u_char *, const size_t, const u_char *,
222 Set_Boot_Mgr(struct disk *, const u_char *, const size_t);
225 * Use this boot-manager on this disk. Gets written when Write_Disk()
230 Set_Boot_Blocks(struct disk *, const u_char *, const u_char *);
232 * Use these boot-blocks on this disk. Gets written when Write_Disk()
233 * is called. Returns nonzero upon failure.
237 Write_Disk(const struct disk *);
238 /* Write all the MBRs, disklabels, bootblocks and boot managers */
241 Next_Cyl_Aligned(const struct disk *, daddr_t);
242 /* Round offset up to next cylinder according to the bios-geometry */
245 Prev_Cyl_Aligned(const struct disk *, daddr_t);
246 /* Round offset down to previous cylinder according to the bios-geometry */
249 Track_Aligned(const struct disk *, daddr_t);
250 /* Check if offset is aligned on a track according to the bios geometry */
253 Next_Track_Aligned(const struct disk *, daddr_t);
254 /* Round offset up to next track according to the bios-geometry */
257 Prev_Track_Aligned(const struct disk *, daddr_t);
258 /* Check if offset is aligned on a track according to the bios geometry */
261 Create_Chunk_DWIM(struct disk *, struct chunk *, daddr_t, chunk_e, int,
264 * This one creates a partition inside the given parent of the given
265 * size, and returns a pointer to it. The first unused chunk big
270 ShowChunkFlags(struct chunk *);
271 /* Return string to show flags. */
274 * Implementation details >>> DO NOT USE <<<
279 void Fill_Disklabel(struct disklabel *, const struct disk *,
280 const struct chunk *);
281 void Debug_Chunk(struct chunk *);
282 struct chunk *New_Chunk(void);
283 void Free_Chunk(struct chunk *);
284 struct chunk *Clone_Chunk(const struct chunk *);
285 int Add_Chunk(struct disk *, daddr_t, daddr_t, const char *, chunk_e, int,
286 u_long, const char *);
287 void *read_block(int, daddr_t, u_long);
288 int write_block(int, daddr_t, const void *, u_long);
289 struct disklabel *read_disklabel(int, daddr_t, u_long);
290 struct disk *Int_Open_Disk(const char *, char *);
291 int Fixup_Names(struct disk *);
292 int MakeDevChunk(const struct chunk *, const char *);
295 #define dprintf printf
299 * Need an error string mechanism from the functions instead of warn()
301 * Make sure only FreeBSD start at offset==0
303 * Collapse must align.
305 * Make Write_Disk(struct disk*)
307 * Consider booting from OnTrack'ed disks.
309 * Get Bios-geom, ST506 & OnTrack from driver (or otherwise)
311 * Make Create_DWIM().
313 * Make Is_Unchanged(struct disk *d1, struct chunk *c1)
315 * don't rename slices unless we have to
317 *Sample output from tst01:
319 * Debug_Disk(wd0) flags=0 bios_geom=0/0/0
320 * >> 0x3d040 0 1411200 1411199 wd0 0 whole 0 0
321 * >>>> 0x3d080 0 960120 960119 wd0s1 3 freebsd 0 8
322 * >>>>>> 0x3d100 0 40960 40959 wd0s1a 5 part 0 0
323 * >>>>>> 0x3d180 40960 131072 172031 wd0s1b 5 part 0 0
324 * >>>>>> 0x3d1c0 172032 409600 581631 wd0s1e 5 part 0 0
325 * >>>>>> 0x3d200 581632 378488 960119 wd0s1f 5 part 0 0
326 * >>>> 0x3d140 960120 5670 965789 wd0s2 4 extended 0 8
327 * >>>>>> 0x3d2c0 960120 63 960182 - 6 unused 0 0
328 * >>>>>> 0x3d0c0 960183 5607 965789 wd0s5 2 fat 0 8
329 * >>>> 0x3d280 965790 1890 967679 wd0s3 1 foo -2 8
330 * >>>> 0x3d300 967680 443520 1411199 wd0s4 3 freebsd 0 8
331 * >>>>>> 0x3d340 967680 443520 1411199 wd0s4a 5 part 0 0
333 * ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
334 * level chunkptr start size end name type subtype flags
336 * Underlying data structure:
339 * <struct chunk> --> part
343 * <wd0> --> <wd0s1> --> <wd0s1a>
355 * <wd0s2> --> <unused>
364 * <wd0s4> --> <wd0s4a>
369 #endif /* _LIBDISK_H_ */