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27#include "volume_id_internal.h"
28
29struct ufs_super_block {
30 uint32_t fs_link;
31 uint32_t fs_rlink;
32 uint32_t fs_sblkno;
33 uint32_t fs_cblkno;
34 uint32_t fs_iblkno;
35 uint32_t fs_dblkno;
36 uint32_t fs_cgoffset;
37 uint32_t fs_cgmask;
38 uint32_t fs_time;
39 uint32_t fs_size;
40 uint32_t fs_dsize;
41 uint32_t fs_ncg;
42 uint32_t fs_bsize;
43 uint32_t fs_fsize;
44 uint32_t fs_frag;
45 uint32_t fs_minfree;
46 uint32_t fs_rotdelay;
47 uint32_t fs_rps;
48 uint32_t fs_bmask;
49 uint32_t fs_fmask;
50 uint32_t fs_bshift;
51 uint32_t fs_fshift;
52 uint32_t fs_maxcontig;
53 uint32_t fs_maxbpg;
54 uint32_t fs_fragshift;
55 uint32_t fs_fsbtodb;
56 uint32_t fs_sbsize;
57 uint32_t fs_csmask;
58 uint32_t fs_csshift;
59 uint32_t fs_nindir;
60 uint32_t fs_inopb;
61 uint32_t fs_nspf;
62 uint32_t fs_optim;
63 uint32_t fs_npsect_state;
64 uint32_t fs_interleave;
65 uint32_t fs_trackskew;
66 uint32_t fs_id[2];
67 uint32_t fs_csaddr;
68 uint32_t fs_cssize;
69 uint32_t fs_cgsize;
70 uint32_t fs_ntrak;
71 uint32_t fs_nsect;
72 uint32_t fs_spc;
73 uint32_t fs_ncyl;
74 uint32_t fs_cpg;
75 uint32_t fs_ipg;
76 uint32_t fs_fpg;
77 struct ufs_csum {
78 uint32_t cs_ndir;
79 uint32_t cs_nbfree;
80 uint32_t cs_nifree;
81 uint32_t cs_nffree;
82 } PACKED fs_cstotal;
83 int8_t fs_fmod;
84 int8_t fs_clean;
85 int8_t fs_ronly;
86 int8_t fs_flags;
87 union {
88 struct {
89 int8_t fs_fsmnt[512];
90 uint32_t fs_cgrotor;
91 uint32_t fs_csp[31];
92 uint32_t fs_maxcluster;
93 uint32_t fs_cpc;
94 uint16_t fs_opostbl[16][8];
95 } PACKED fs_u1;
96 struct {
97 int8_t fs_fsmnt[468];
98 uint8_t fs_volname[32];
99 uint64_t fs_swuid;
100 int32_t fs_pad;
101 uint32_t fs_cgrotor;
102 uint32_t fs_ocsp[28];
103 uint32_t fs_contigdirs;
104 uint32_t fs_csp;
105 uint32_t fs_maxcluster;
106 uint32_t fs_active;
107 int32_t fs_old_cpc;
108 int32_t fs_maxbsize;
109 int64_t fs_sparecon64[17];
110 int64_t fs_sblockloc;
111 struct ufs2_csum_total {
112 uint64_t cs_ndir;
113 uint64_t cs_nbfree;
114 uint64_t cs_nifree;
115 uint64_t cs_nffree;
116 uint64_t cs_numclusters;
117 uint64_t cs_spare[3];
118 } PACKED fs_cstotal;
119 struct ufs_timeval {
120 int32_t tv_sec;
121 int32_t tv_usec;
122 } PACKED fs_time;
123 int64_t fs_size;
124 int64_t fs_dsize;
125 uint64_t fs_csaddr;
126 int64_t fs_pendingblocks;
127 int32_t fs_pendinginodes;
128 } PACKED fs_u2;
129 } fs_u11;
130 union {
131 struct {
132 int32_t fs_sparecon[53];
133 int32_t fs_reclaim;
134 int32_t fs_sparecon2[1];
135 int32_t fs_state;
136 uint32_t fs_qbmask[2];
137 uint32_t fs_qfmask[2];
138 } PACKED fs_sun;
139 struct {
140 int32_t fs_sparecon[53];
141 int32_t fs_reclaim;
142 int32_t fs_sparecon2[1];
143 uint32_t fs_npsect;
144 uint32_t fs_qbmask[2];
145 uint32_t fs_qfmask[2];
146 } PACKED fs_sunx86;
147 struct {
148 int32_t fs_sparecon[50];
149 int32_t fs_contigsumsize;
150 int32_t fs_maxsymlinklen;
151 int32_t fs_inodefmt;
152 uint32_t fs_maxfilesize[2];
153 uint32_t fs_qbmask[2];
154 uint32_t fs_qfmask[2];
155 int32_t fs_state;
156 } PACKED fs_44;
157 } fs_u2;
158 int32_t fs_postblformat;
159 int32_t fs_nrpos;
160 int32_t fs_postbloff;
161 int32_t fs_rotbloff;
162 uint32_t fs_magic;
163 uint8_t fs_space[1];
164} PACKED;
165
166#define UFS_MAGIC 0x00011954
167#define UFS2_MAGIC 0x19540119
168#define UFS_MAGIC_FEA 0x00195612
169#define UFS_MAGIC_LFN 0x00095014
170
171int FAST_FUNC volume_id_probe_ufs(struct volume_id *id, uint64_t off)
172{
173 static const short offsets[] = { 0, 8, 64, 256 };
174
175 uint32_t magic;
176 unsigned i;
177 struct ufs_super_block *ufs;
178
179 dbg("probing at offset 0x%llx", (unsigned long long) off);
180
181 for (i = 0; i < ARRAY_SIZE(offsets); i++) {
182 ufs = volume_id_get_buffer(id, off + (offsets[i] * 0x400), 0x800);
183 if (ufs == NULL)
184 return -1;
185
186 dbg("offset 0x%x", offsets[i] * 0x400);
187 magic = ufs->fs_magic;
188 if ((magic == cpu_to_be32(UFS_MAGIC))
189 || (magic == cpu_to_be32(UFS2_MAGIC))
190 || (magic == cpu_to_be32(UFS_MAGIC_FEA))
191 || (magic == cpu_to_be32(UFS_MAGIC_LFN))
192 ) {
193 dbg("magic 0x%08x(be)", magic);
194 goto found;
195 }
196 if ((magic == cpu_to_le32(UFS_MAGIC))
197 || (magic == cpu_to_le32(UFS2_MAGIC))
198 || (magic == cpu_to_le32(UFS_MAGIC_FEA))
199 || (magic == cpu_to_le32(UFS_MAGIC_LFN))
200 ) {
201 dbg("magic 0x%08x(le)", magic);
202 goto found;
203 }
204 }
205 return -1;
206
207 found:
208
209
210
211 return 0;
212}
213
