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Code Issues

Enabled generic support for the database encryption. The key part of the feature is still protected by the macro. Proven to work on win32.

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This commit is contained in:
dimitr 2003-02-09 10:05:07 +00:00
parent 3d156a0aab
commit c11ec94f4f
2 changed files with 25 additions and 26 deletions
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39
src/jrd/jrd.cpp
View File

@ -302,9 +302,7 @@ typedef struct dpb
TEXT* dpb_password_enc;
TEXT* dpb_role_name;
TEXT* dpb_journal;
#ifdef ISC_DATABASE_ENCRYPTION
TEXT* dpb_key;
#endif
TEXT* dpb_log;
TEXT* dpb_wal_backup_dir;
USHORT dpb_wal_action;
@ -562,11 +560,16 @@ BOOLEAN invalid_client_SQL_dialect = FALSE;
/* External hook definitions */
#ifdef ISC_DATABASE_ENCRYPTION
#define ENCRYPT_IMAGE "ISCCRYPT"
#define ENCRYPT "ISC_ENCRYPT"
#define DECRYPT "ISC_DECRYPT"
#endif
/* dimitr: just uncomment the following line to use this feature.
Requires support from the PIO modules. Only Win32 is 100% ready
for this so far. Note that the database encryption code in the
PIO layer seems to be incompatible with the SUPERSERVER_V2 code.
2003.02.09 */
//#define ISC_DATABASE_ENCRYPTION
static const char* CRYPT_IMAGE = "fbcrypt";
static const char* ENCRYPT = "encrypt";
static const char* DECRYPT = "decrypt";
#ifdef SHLIB_DEFS
@ -733,26 +736,24 @@ STATUS DLL_EXPORT GDS_ATTACH_DATABASE(STATUS* user_status,
ERR_post(gds_unavailable, 0);
}
#ifdef ISC_DATABASE_ENCRYPTION
/* Worry about encryption key */
if (dbb->dbb_decrypt) {
if (dbb->dbb_filename) {
if (dbb->dbb_filename && (dbb->dbb_encrypt_key || options.dpb_key)) {
if ((dbb->dbb_encrypt_key && !options.dpb_key) ||
(!dbb->dbb_encrypt_key && options.dpb_key) ||
strcmp(options.dpb_key, dbb->dbb_encrypt_key->str_data))
strcmp(options.dpb_key, reinterpret_cast<char*>(dbb->dbb_encrypt_key->str_data)))
ERR_post(gds_no_priv,
gds_arg_string, "encryption",
gds_arg_string, "database",
gds_arg_string,
ERR_string(reinterpret_cast< char *>(file_name), fl),
ERR_string(reinterpret_cast<char*>(file_name), fl),
0);
}
else if (options.dpb_key)
dbb->dbb_encrypt_key =
copy_string(options.dpb_key, strlen(options.dpb_key));
}
#endif
tdbb->tdbb_attachment = attachment = FB_NEW(*dbb->dbb_permanent) att();
attachment->att_database = dbb;
@ -1864,11 +1865,9 @@ STATUS DLL_EXPORT GDS_CREATE_DATABASE(STATUS* user_status,
TRUE)) ERR_post(gds_unavailable, 0);
}
#ifdef ISC_DATABASE_ENCRYPTION
if (options.dpb_key)
dbb->dbb_encrypt_key =
copy_string(options.dpb_key, strlen(options.dpb_key));
#endif
tdbb->tdbb_attachment = attachment = FB_NEW(*dbb->dbb_permanent) att();
attachment->att_database = dbb;
@ -5621,14 +5620,16 @@ static DBB init(TDBB tdbb,
TRA_init(tdbb);
#ifdef ISC_DATABASE_ENCRYPTION
/* Lookup some external "hooks" */
if (dbb_->dbb_encrypt = ISC_lookup_entrypoint(ENCRYPT_IMAGE, ENCRYPT, NULL))
{
dbb_->dbb_decrypt = ISC_lookup_entrypoint(ENCRYPT_IMAGE, DECRYPT, NULL);
PluginManager::Plugin crypt_lib =
PluginManager::getEnginePluginManager().findPlugin(CRYPT_IMAGE);
if (crypt_lib) {
dbb_->dbb_encrypt =
(dbb::crypt_routine) crypt_lib.lookupSymbol(Firebird::string(ENCRYPT));
dbb_->dbb_decrypt =
(dbb::crypt_routine) crypt_lib.lookupSymbol(Firebird::string(DECRYPT));
}
#endif
INTL_init(tdbb);

12
src/jrd/jrd.h
View File

@ -113,6 +113,8 @@ class tdbb;
class dbb : private pool_alloc<type_dbb>
{
public:
typedef int (*crypt_routine) (char*, void*, int, void*);
static dbb* newDbb(MemoryPool& p) {
return FB_NEW(p) dbb(p);
}
@ -170,9 +172,7 @@ public:
USHORT dbb_prefetch_pages; /* prefetch pages per request */
class str *dbb_spare_string; /* random buffer */
class str *dbb_filename; /* filename string */
#ifdef ISC_DATABASE_ENCRYPTION
class str *dbb_encrypt_key; /* encryption key */
#endif
JrdMemoryPool* dbb_permanent;
JrdMemoryPool* dbb_bufferpool;
@ -215,12 +215,10 @@ public:
SLONG dbb_lock_owner_handle; /* Handle for the lock manager */
USHORT unflushed_writes; /* unflushed writes */
time_t last_flushed_write; /* last flushed write time */
time_t last_flushed_write; /* last flushed write time */
#ifdef ISC_DATABASE_ENCRYPTION
int (*dbb_encrypt) (); /* External encryption routine */
int (*dbb_decrypt) (); /* External decryption routine */
#endif
crypt_routine dbb_encrypt; /* External encryption routine */
crypt_routine dbb_decrypt; /* External decryption routine */
class map *dbb_blob_map; /* mapping of blobs for REPLAY */
struct log *dbb_log; /* log file for REPLAY */