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1 /* | 1 /* |
2 * Copyright (C) 2010 The Chromium OS Authors <chromium-os-dev@chromium.org> | 2 * Copyright (C) 2010 The Chromium OS Authors <chromium-os-dev@chromium.org> |
3 * | 3 * |
4 * Device-Mapper block hash tree interface. | 4 * Device-Mapper block hash tree interface. |
5 * See Documentation/device-mapper/dm-bht.txt for details. | 5 * See Documentation/device-mapper/dm-bht.txt for details. |
6 * | 6 * |
7 * This file is released under the GPLv2. | 7 * This file is released under the GPLv2. |
8 */ | 8 */ |
9 #ifndef __LINUX_DM_BHT_H | 9 #ifndef __LINUX_DM_BHT_H |
10 #define __LINUX_DM_BHT_H | 10 #define __LINUX_DM_BHT_H |
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128 void dm_bht_set_read_cb(struct dm_bht *bht, dm_bht_callback read_cb); | 128 void dm_bht_set_read_cb(struct dm_bht *bht, dm_bht_callback read_cb); |
129 void dm_bht_set_write_cb(struct dm_bht *bht, dm_bht_callback write_cb); | 129 void dm_bht_set_write_cb(struct dm_bht *bht, dm_bht_callback write_cb); |
130 void dm_bht_set_verify_mode(struct dm_bht *bht, int verify_mode); | 130 void dm_bht_set_verify_mode(struct dm_bht *bht, int verify_mode); |
131 int dm_bht_set_root_hexdigest(struct dm_bht *bht, const u8 *hexdigest); | 131 int dm_bht_set_root_hexdigest(struct dm_bht *bht, const u8 *hexdigest); |
132 int dm_bht_root_hexdigest(struct dm_bht *bht, u8 *hexdigest, int available); | 132 int dm_bht_root_hexdigest(struct dm_bht *bht, u8 *hexdigest, int available); |
133 | 133 |
134 /* Functions for loading in data from disk for verification */ | 134 /* Functions for loading in data from disk for verification */ |
135 int dm_bht_populate(struct dm_bht *bht, void *read_cb_ctx, | 135 int dm_bht_populate(struct dm_bht *bht, void *read_cb_ctx, |
136 unsigned int block_index); | 136 unsigned int block_index); |
137 int dm_bht_verify_block(struct dm_bht *bht, unsigned int block_index, | 137 int dm_bht_verify_block(struct dm_bht *bht, unsigned int block_index, |
138 » » » u8 *digest, unsigned int digest_len); | 138 » » » const void *buf); |
139 | 139 |
140 /* Functions for creating struct dm_bhts on disk. A newly created dm_bht | 140 /* Functions for creating struct dm_bhts on disk. A newly created dm_bht |
141 * should not be directly used for verification. (It should be repopulated.) | 141 * should not be directly used for verification. (It should be repopulated.) |
142 * In addition, these functions aren't meant to be called in parallel. | 142 * In addition, these functions aren't meant to be called in parallel. |
143 */ | 143 */ |
144 int dm_bht_compute(struct dm_bht *bht, void *read_cb_ctx); | 144 int dm_bht_compute(struct dm_bht *bht, void *read_cb_ctx); |
145 int dm_bht_sync(struct dm_bht *bht, void *write_cb_ctx); | 145 int dm_bht_sync(struct dm_bht *bht, void *write_cb_ctx); |
146 int dm_bht_store_block(struct dm_bht *bht, unsigned int block_index, | 146 int dm_bht_store_block(struct dm_bht *bht, unsigned int block_index, |
147 u8 *block_data); | 147 u8 *block_data); |
148 int dm_bht_zeroread_callback(void *ctx, sector_t start, u8 *dst, sector_t count, | 148 int dm_bht_zeroread_callback(void *ctx, sector_t start, u8 *dst, sector_t count, |
149 struct dm_bht_entry *entry); | 149 struct dm_bht_entry *entry); |
150 void dm_bht_read_completed(struct dm_bht_entry *entry, int status); | 150 void dm_bht_read_completed(struct dm_bht_entry *entry, int status); |
151 void dm_bht_write_completed(struct dm_bht_entry *entry, int status); | 151 void dm_bht_write_completed(struct dm_bht_entry *entry, int status); |
152 #endif /* __LINUX_DM_BHT_H */ | 152 #endif /* __LINUX_DM_BHT_H */ |
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