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21#include "volume_id_internal.h"
22
23struct ufs_super_block {
24 uint32_t fs_link;
25 uint32_t fs_rlink;
26 uint32_t fs_sblkno;
27 uint32_t fs_cblkno;
28 uint32_t fs_iblkno;
29 uint32_t fs_dblkno;
30 uint32_t fs_cgoffset;
31 uint32_t fs_cgmask;
32 uint32_t fs_time;
33 uint32_t fs_size;
34 uint32_t fs_dsize;
35 uint32_t fs_ncg;
36 uint32_t fs_bsize;
37 uint32_t fs_fsize;
38 uint32_t fs_frag;
39 uint32_t fs_minfree;
40 uint32_t fs_rotdelay;
41 uint32_t fs_rps;
42 uint32_t fs_bmask;
43 uint32_t fs_fmask;
44 uint32_t fs_bshift;
45 uint32_t fs_fshift;
46 uint32_t fs_maxcontig;
47 uint32_t fs_maxbpg;
48 uint32_t fs_fragshift;
49 uint32_t fs_fsbtodb;
50 uint32_t fs_sbsize;
51 uint32_t fs_csmask;
52 uint32_t fs_csshift;
53 uint32_t fs_nindir;
54 uint32_t fs_inopb;
55 uint32_t fs_nspf;
56 uint32_t fs_optim;
57 uint32_t fs_npsect_state;
58 uint32_t fs_interleave;
59 uint32_t fs_trackskew;
60 uint32_t fs_id[2];
61 uint32_t fs_csaddr;
62 uint32_t fs_cssize;
63 uint32_t fs_cgsize;
64 uint32_t fs_ntrak;
65 uint32_t fs_nsect;
66 uint32_t fs_spc;
67 uint32_t fs_ncyl;
68 uint32_t fs_cpg;
69 uint32_t fs_ipg;
70 uint32_t fs_fpg;
71 struct ufs_csum {
72 uint32_t cs_ndir;
73 uint32_t cs_nbfree;
74 uint32_t cs_nifree;
75 uint32_t cs_nffree;
76 } PACKED fs_cstotal;
77 int8_t fs_fmod;
78 int8_t fs_clean;
79 int8_t fs_ronly;
80 int8_t fs_flags;
81 union {
82 struct {
83 int8_t fs_fsmnt[512];
84 uint32_t fs_cgrotor;
85 uint32_t fs_csp[31];
86 uint32_t fs_maxcluster;
87 uint32_t fs_cpc;
88 uint16_t fs_opostbl[16][8];
89 } PACKED fs_u1;
90 struct {
91 int8_t fs_fsmnt[468];
92 uint8_t fs_volname[32];
93 uint64_t fs_swuid;
94 int32_t fs_pad;
95 uint32_t fs_cgrotor;
96 uint32_t fs_ocsp[28];
97 uint32_t fs_contigdirs;
98 uint32_t fs_csp;
99 uint32_t fs_maxcluster;
100 uint32_t fs_active;
101 int32_t fs_old_cpc;
102 int32_t fs_maxbsize;
103 int64_t fs_sparecon64[17];
104 int64_t fs_sblockloc;
105 struct ufs2_csum_total {
106 uint64_t cs_ndir;
107 uint64_t cs_nbfree;
108 uint64_t cs_nifree;
109 uint64_t cs_nffree;
110 uint64_t cs_numclusters;
111 uint64_t cs_spare[3];
112 } PACKED fs_cstotal;
113 struct ufs_timeval {
114 int32_t tv_sec;
115 int32_t tv_usec;
116 } PACKED fs_time;
117 int64_t fs_size;
118 int64_t fs_dsize;
119 uint64_t fs_csaddr;
120 int64_t fs_pendingblocks;
121 int32_t fs_pendinginodes;
122 } PACKED fs_u2;
123 } fs_u11;
124 union {
125 struct {
126 int32_t fs_sparecon[53];
127 int32_t fs_reclaim;
128 int32_t fs_sparecon2[1];
129 int32_t fs_state;
130 uint32_t fs_qbmask[2];
131 uint32_t fs_qfmask[2];
132 } PACKED fs_sun;
133 struct {
134 int32_t fs_sparecon[53];
135 int32_t fs_reclaim;
136 int32_t fs_sparecon2[1];
137 uint32_t fs_npsect;
138 uint32_t fs_qbmask[2];
139 uint32_t fs_qfmask[2];
140 } PACKED fs_sunx86;
141 struct {
142 int32_t fs_sparecon[50];
143 int32_t fs_contigsumsize;
144 int32_t fs_maxsymlinklen;
145 int32_t fs_inodefmt;
146 uint32_t fs_maxfilesize[2];
147 uint32_t fs_qbmask[2];
148 uint32_t fs_qfmask[2];
149 int32_t fs_state;
150 } PACKED fs_44;
151 } fs_u2;
152 int32_t fs_postblformat;
153 int32_t fs_nrpos;
154 int32_t fs_postbloff;
155 int32_t fs_rotbloff;
156 uint32_t fs_magic;
157 uint8_t fs_space[1];
158} PACKED;
159
160#define UFS_MAGIC 0x00011954
161#define UFS2_MAGIC 0x19540119
162#define UFS_MAGIC_FEA 0x00195612
163#define UFS_MAGIC_LFN 0x00095014
164
165int FAST_FUNC volume_id_probe_ufs(struct volume_id *id, uint64_t off)
166{
167 static const short offsets[] = { 0, 8, 64, 256 };
168
169 uint32_t magic;
170 unsigned i;
171 struct ufs_super_block *ufs;
172
173 dbg("probing at offset 0x%llx", (unsigned long long) off);
174
175 for (i = 0; i < ARRAY_SIZE(offsets); i++) {
176 ufs = volume_id_get_buffer(id, off + (offsets[i] * 0x400), 0x800);
177 if (ufs == NULL)
178 return -1;
179
180 dbg("offset 0x%x", offsets[i] * 0x400);
181 magic = ufs->fs_magic;
182 if ((magic == cpu_to_be32(UFS_MAGIC))
183 || (magic == cpu_to_be32(UFS2_MAGIC))
184 || (magic == cpu_to_be32(UFS_MAGIC_FEA))
185 || (magic == cpu_to_be32(UFS_MAGIC_LFN))
186 ) {
187 dbg("magic 0x%08x(be)", magic);
188 goto found;
189 }
190 if ((magic == cpu_to_le32(UFS_MAGIC))
191 || (magic == cpu_to_le32(UFS2_MAGIC))
192 || (magic == cpu_to_le32(UFS_MAGIC_FEA))
193 || (magic == cpu_to_le32(UFS_MAGIC_LFN))
194 ) {
195 dbg("magic 0x%08x(le)", magic);
196 goto found;
197 }
198 }
199 return -1;
200
201 found:
202
203
204
205 return 0;
206}
207
