*/
#define csum_vstruct(_c, _type, _nonce, _i) \
({ \
- const void *start = ((const void *) (_i)) + sizeof((_i)->csum); \
- const void *end = vstruct_end(_i); \
+ const void *_start = ((const void *) (_i)) + sizeof((_i)->csum);\
\
- bch2_checksum(_c, _type, _nonce, start, end - start); \
+ bch2_checksum(_c, _type, _nonce, _start, vstruct_end(_i) - _start);\
})
+static inline void bch2_csum_to_text(struct printbuf *out,
+ enum bch_csum_type type,
+ struct bch_csum csum)
+{
+ const u8 *p = (u8 *) &csum;
+ unsigned bytes = type < BCH_CSUM_NR ? bch_crc_bytes[type] : 16;
+
+ for (unsigned i = 0; i < bytes; i++)
+ prt_hex_byte(out, p[i]);
+}
+
+static inline void bch2_csum_err_msg(struct printbuf *out,
+ enum bch_csum_type type,
+ struct bch_csum expected,
+ struct bch_csum got)
+{
+ prt_printf(out, "checksum error: got ");
+ bch2_csum_to_text(out, type, got);
+ prt_str(out, " should be ");
+ bch2_csum_to_text(out, type, expected);
+ prt_printf(out, " type %s", bch2_csum_types[type]);
+}
+
int bch2_chacha_encrypt_key(struct bch_key *, struct nonce, void *, size_t);
int bch2_request_key(struct bch_sb *, struct bch_key *);
+#ifndef __KERNEL__
+int bch2_revoke_key(struct bch_sb *);
+#endif
int bch2_encrypt(struct bch_fs *, unsigned, struct nonce,
void *data, size_t);
struct bch_extent_crc_unpacked *,
unsigned, unsigned, unsigned);
-int bch2_encrypt_bio(struct bch_fs *, unsigned,
- struct nonce, struct bio *);
+int __bch2_encrypt_bio(struct bch_fs *, unsigned,
+ struct nonce, struct bio *);
+
+static inline int bch2_encrypt_bio(struct bch_fs *c, unsigned type,
+ struct nonce nonce, struct bio *bio)
+{
+ return bch2_csum_type_is_encryption(type)
+ ? __bch2_encrypt_bio(c, type, nonce, bio)
+ : 0;
+}
+
+extern const struct bch_sb_field_ops bch_sb_field_ops_crypt;
int bch2_decrypt_sb_key(struct bch_fs *, struct bch_sb_field_crypt *,
struct bch_key *);
{
switch (type) {
case BCH_CSUM_OPT_none:
- return BCH_CSUM_none;
+ return BCH_CSUM_none;
case BCH_CSUM_OPT_crc32c:
- return data ? BCH_CSUM_crc32c : BCH_CSUM_crc32c_nonzero;
+ return data ? BCH_CSUM_crc32c : BCH_CSUM_crc32c_nonzero;
case BCH_CSUM_OPT_crc64:
- return data ? BCH_CSUM_crc64 : BCH_CSUM_crc64_nonzero;
+ return data ? BCH_CSUM_crc64 : BCH_CSUM_crc64_nonzero;
case BCH_CSUM_OPT_xxhash:
- return BCH_CSUM_xxhash;
+ return BCH_CSUM_xxhash;
default:
- BUG();
+ BUG();
}
}
static inline enum bch_csum_type bch2_data_checksum_type(struct bch_fs *c,
- unsigned opt)
+ struct bch_io_opts opts)
{
+ if (opts.nocow)
+ return 0;
+
if (c->sb.encryption_type)
return c->opts.wide_macs
? BCH_CSUM_chacha20_poly1305_128
: BCH_CSUM_chacha20_poly1305_80;
- return bch2_csum_opt_to_type(opt, true);
+ return bch2_csum_opt_to_type(opts.data_checksum, true);
}
static inline enum bch_csum_type bch2_meta_checksum_type(struct bch_fs *c)
return bch2_csum_opt_to_type(c->opts.metadata_checksum, false);
}
-static const unsigned bch2_compression_opt_to_type[] = {
-#define x(t, n) [BCH_COMPRESSION_OPT_##t] = BCH_COMPRESSION_TYPE_##t,
- BCH_COMPRESSION_OPTS()
-#undef x
-};
-
static inline bool bch2_checksum_type_valid(const struct bch_fs *c,
unsigned type)
{