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 * ----------------------------------------------------------------------------
14 /* You can define a particular architecture here if you are debugging. */
15 /* #define P_DEBUG p_sparc64 */
17 #define MAX_NO_DISKS 32
18 /* Max # of disks Disk_Names() will return */
20 #define MAX_SEC_SIZE 2048 /* maximum sector size that is supported */
21 #define MIN_SEC_SIZE 512 /* the sector size to end sensing at */
24 p_any, /* for debugging ! */
34 extern const enum platform platform;
73 #if defined(__i386__) || defined(__amd64__) /* the i386 needs extra help... */
77 u_long sector_size; /* media sector size, a power of 2 */
87 u_int gpt_size; /* Number of entries */
98 char *sname; /* PC98 field */
101 /* Used during Fixup_Names() to avoid renaming more than
107 void (*private_free)(void*);
108 void *(*private_clone)(void*);
110 /* For data private to the application, and the management
111 * thereof. If the functions are not provided, no storage
112 * management is done, Cloning will just copy the pointer
113 * and freeing will just forget it.
120 * ALIGN - This chunk should be aligned
121 * IS_ROOT - This 'part' is a rootfs, allocate 'a'
122 * ACTIVE - This is the active slice in the MBR
123 * FORCE_ALL - Force a dedicated disk for FreeBSD, bypassing
124 * all BIOS geometry considerations
125 * AUTO_SIZE - This chunk was auto-sized and can fill-out a
126 * following chunk if the following chunk is deleted.
127 * NEWFS - newfs pending, used to enable auto-resizing on
128 * delete (along with AUTO_SIZE).
131 #define CHUNK_ALIGN 0x0008
132 #define CHUNK_IS_ROOT 0x0010
133 #define CHUNK_ACTIVE 0x0020
134 #define CHUNK_FORCE_ALL 0x0040
135 #define CHUNK_AUTO_SIZE 0x0080
136 #define CHUNK_NEWFS 0x0100
137 #define CHUNK_HAS_INDEX 0x0200
138 #define CHUNK_ITOF(i) ((i & 0xFFFF) << 16)
139 #define CHUNK_FTOI(f) ((f >> 16) & 0xFFFF)
141 #define DELCHUNK_NORMAL 0x0000
142 #define DELCHUNK_RECOVER 0x0001
144 const char *chunk_name(chunk_e);
147 slice_type_name(int, int);
148 /* "chunk_n" for subtypes too */
151 Open_Disk(const char *);
152 /* Will open the named disk, and return populated tree. */
155 Free_Disk(struct disk *);
156 /* Free a tree made with Open_Disk() or Clone_Disk() */
159 Debug_Disk(struct disk *);
160 /* Print the content of the tree to stdout */
163 Set_Bios_Geom(struct disk *, u_long, u_long, u_long);
164 /* Set the geometry the bios uses. */
167 Sanitize_Bios_Geom(struct disk *);
168 /* Set the bios geometry to something sane */
171 Insert_Chunk(struct chunk *, daddr_t, daddr_t, const char *, chunk_e, int,
172 u_long, const char *);
175 Delete_Chunk2(struct disk *, struct chunk *, int);
176 /* Free a chunk of disk_space modified by the passed flags. */
179 Delete_Chunk(struct disk *, struct chunk *);
180 /* Free a chunk of disk_space */
183 Collapse_Disk(struct disk *);
184 /* Experimental, do not use. */
187 Collapse_Chunk(struct disk *, struct chunk *);
188 /* Experimental, do not use. */
191 Create_Chunk(struct disk *, daddr_t, daddr_t, chunk_e, int, u_long, const char *);
192 /* Create a chunk with the specified paramters */
195 All_FreeBSD(struct disk *, int);
197 * Make one FreeBSD chunk covering the entire disk;
198 * if force_all is set, bypass all BIOS geometry
203 CheckRules(const struct disk *);
204 /* Return char* to warnings about broken design rules in this disklayout */
209 * Return char** with all disk's names (wd0, wd1 ...). You must free
210 * each pointer, as well as the array by hand
215 Set_Boot_Mgr(struct disk *, const u_char *, const size_t, const u_char *,
219 Set_Boot_Mgr(struct disk *, const u_char *, const size_t);
222 * Use this boot-manager on this disk. Gets written when Write_Disk()
227 Set_Boot_Blocks(struct disk *, const u_char *, const u_char *);
229 * Use these boot-blocks on this disk. Gets written when Write_Disk()
230 * is called. Returns nonzero upon failure.
234 Write_Disk(const struct disk *);
235 /* Write all the MBRs, disklabels, bootblocks and boot managers */
238 Next_Cyl_Aligned(const struct disk *, daddr_t);
239 /* Round offset up to next cylinder according to the bios-geometry */
242 Prev_Cyl_Aligned(const struct disk *, daddr_t);
243 /* Round offset down to previous cylinder according to the bios-geometry */
246 Track_Aligned(const struct disk *, daddr_t);
247 /* Check if offset is aligned on a track according to the bios geometry */
250 Next_Track_Aligned(const struct disk *, daddr_t);
251 /* Round offset up to next track according to the bios-geometry */
254 Prev_Track_Aligned(const struct disk *, daddr_t);
255 /* Check if offset is aligned on a track according to the bios geometry */
258 Create_Chunk_DWIM(struct disk *, struct chunk *, daddr_t, chunk_e, int,
261 * This one creates a partition inside the given parent of the given
262 * size, and returns a pointer to it. The first unused chunk big
267 ShowChunkFlags(struct chunk *);
268 /* Return string to show flags. */
271 * Implementation details >>> DO NOT USE <<<
276 void Fill_Disklabel(struct disklabel *, const struct disk *,
277 const struct chunk *);
278 void Debug_Chunk(struct chunk *);
279 struct chunk *New_Chunk(void);
280 void Free_Chunk(struct chunk *);
281 struct chunk *Clone_Chunk(const struct chunk *);
282 int Add_Chunk(struct disk *, daddr_t, daddr_t, const char *, chunk_e, int,
283 u_long, const char *);
284 void *read_block(int, daddr_t, u_long);
285 int write_block(int, daddr_t, const void *, u_long);
286 struct disklabel *read_disklabel(int, daddr_t, u_long);
287 struct disk *Int_Open_Disk(const char *, char *);
288 int Fixup_Names(struct disk *);
289 int MakeDevChunk(const struct chunk *, const char *);
292 #define dprintf printf
296 * Need an error string mechanism from the functions instead of warn()
298 * Make sure only FreeBSD start at offset==0
300 * Collapse must align.
302 * Make Write_Disk(struct disk*)
304 * Consider booting from OnTrack'ed disks.
306 * Get Bios-geom, ST506 & OnTrack from driver (or otherwise)
308 * Make Create_DWIM().
310 * Make Is_Unchanged(struct disk *d1, struct chunk *c1)
312 * don't rename slices unless we have to
314 *Sample output from tst01:
316 * Debug_Disk(wd0) flags=0 bios_geom=0/0/0
317 * >> 0x3d040 0 1411200 1411199 wd0 0 whole 0 0
318 * >>>> 0x3d080 0 960120 960119 wd0s1 3 freebsd 0 8
319 * >>>>>> 0x3d100 0 40960 40959 wd0s1a 5 part 0 0
320 * >>>>>> 0x3d180 40960 131072 172031 wd0s1b 5 part 0 0
321 * >>>>>> 0x3d1c0 172032 409600 581631 wd0s1e 5 part 0 0
322 * >>>>>> 0x3d200 581632 378488 960119 wd0s1f 5 part 0 0
323 * >>>> 0x3d140 960120 5670 965789 wd0s2 4 extended 0 8
324 * >>>>>> 0x3d2c0 960120 63 960182 - 6 unused 0 0
325 * >>>>>> 0x3d0c0 960183 5607 965789 wd0s5 2 fat 0 8
326 * >>>> 0x3d280 965790 1890 967679 wd0s3 1 foo -2 8
327 * >>>> 0x3d300 967680 443520 1411199 wd0s4 3 freebsd 0 8
328 * >>>>>> 0x3d340 967680 443520 1411199 wd0s4a 5 part 0 0
330 * ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
331 * level chunkptr start size end name type subtype flags
333 * Underlying data structure:
336 * <struct chunk> --> part
340 * <wd0> --> <wd0s1> --> <wd0s1a>
352 * <wd0s2> --> <unused>
361 * <wd0s4> --> <wd0s4a>