return retval;
}
-#if 0 /* pradx */
-
-krb5_error_code
-krb5_db2_db_open_database(krb5_context context)
-{
- if (!k5db2_inited(context))
- return KRB5_KDB_DBNOTINITED;
- return 0;
-}
-
-krb5_error_code
-krb5_db2_db_close_database(krb5_context context)
-{
- if (!k5db2_inited(context))
- return KRB5_KDB_DBNOTINITED;
- return 0;
-}
-
-#endif /* 0 -pradx */
-
/*
* Set/Get the master key associated with the database
*/
return retval1;
}
-#if 0 /* -pradx */
-
-/*
- * "Atomically" rename the database in a way that locks out read
- * access in the middle of the rename.
- *
- * Not perfect; if we crash in the middle of an update, we don't
- * necessarily know to complete the transaction the rename, but...
- *
- * Since the rename operation happens outside the init/fini bracket, we
- * have to go through the same stuff that we went through up in db_destroy.
- */
-krb5_error_code
-krb5_db2_db_rename(krb5_context context, char *from, char *to)
-{
- DB *db;
- char *fromok;
- krb5_error_code retval;
- kdb5_dal_handle *dal_handle;
- krb5_db2_context *s_context, *db_ctx;
-
- dal_handle = (kdb5_dal_handle *) context->db_context;
- s_context = dal_handle->db_context;
- dal_handle->db_context = NULL;
- if ((retval = k5db2_init_context(context)))
- return retval;
- db_ctx =
- (krb5_db2_context *) ((kdb5_dal_handle *) context->db_context)->
- db_context;
-
- /*
- * Create the database if it does not already exist; the
- * files must exist because krb5_db2_db_lock, called below,
- * will fail otherwise.
- */
- db = k5db2_dbopen(db_ctx, to, O_RDWR | O_CREAT, 0600);
- if (db == NULL) {
- retval = errno;
- goto errout;
- } else
- (*db->close) (db);
- /*
- * Set the database to the target, so that other processes sharing
- * the target will stop their activity, and notice the new database.
- */
- retval = krb5_db2_db_set_name(context, to);
- if (retval)
- goto errout;
-
- db_ctx->db_lf_name = gen_dbsuffix(db_ctx->db_name, KDB2_LOCK_EXT);
- if (db_ctx->db_lf_name == NULL) {
- retval = ENOMEM;
- goto errout;
- }
- db_ctx->db_lf_file = open(db_ctx->db_lf_name, O_RDWR | O_CREAT, 0600);
- if (db_ctx->db_lf_file < 0) {
- retval = errno;
- goto errout;
- }
-
- db_ctx->db_inited = 1;
-
- retval = krb5_db2_db_get_age(context, NULL, &db_ctx->db_lf_time);
- if (retval)
- goto errout;
-
- fromok = gen_dbsuffix(from, KDB2_LOCK_EXT);
- if (fromok == NULL) {
- retval = ENOMEM;
- goto errout;
- }
-
- if ((retval = krb5_db2_db_lock(context, KRB5_LOCKMODE_EXCLUSIVE)))
- goto errfromok;
-
- if ((retval = krb5_db2_db_start_update(context)))
- goto errfromok;
-
- if (rename(from, to)) {
- retval = errno;
- goto errfromok;
- }
- if (unlink(fromok)) {
- retval = errno;
- goto errfromok;
- }
- retval = krb5_db2_db_end_update(context);
- errfromok:
- free_dbsuffix(fromok);
- errout:
- if (((kdb5_dal_handle *) context->db_context)->db_context) {
- if (db_ctx->db_lf_file >= 0) {
- krb5_db2_db_unlock(context);
- close(db_ctx->db_lf_file);
- }
- k5db2_clear_context((krb5_db2_context *) ((kdb5_dal_handle *) context->
- db_context)->db_context);
- free(((kdb5_dal_handle *) context->db_context)->db_context);
- }
-
- ((kdb5_dal_handle *) context->db_context)->db_context = s_context;
- (void) krb5_db2_db_unlock(context); /* unlock saved context db */
-
- return retval;
-}
-
-#endif /* 0 - pradx */
-
/*
* look up a principal in the data base.
* returns number of entries found, and whether there were
return old;
}
-#if 0 /* -pradx */
-/*
- * Context serialization operations.
- *
- * Ick, this is really gross. --- tlyu
- */
-
-/*
- * kdb5_context_size() - Determine size required to serialize.
- */
-static krb5_error_code
-kdb5_context_size(krb5_context kcontext, krb5_pointer arg, size_t *sizep)
-{
- krb5_error_code kret;
- size_t required;
- krb5_db2_context *dbctx;
-
- /*
- * The database context requires at minimum:
- * krb5_int32 for KV5M_DB_CONTEXT
- * krb5_int32 for db_inited
- * krb5_int32 for database lockfile non-blocking flag
- * krb5_int32 for database lockfile lock count
- * krb5_int32 for database lockfile lock mode
- * krb5_int32 for length of database name.
- * krb5_int32 for KV5M_DB_CONTEXT
- */
- kret = EINVAL;
- if ((dbctx = (krb5_db2_context *) arg)) {
- required = (sizeof(krb5_int32) * 7);
- if (dbctx->db_inited && dbctx->db_name)
- required += strlen(dbctx->db_name);
- kret = 0;
- *sizep += required;
- }
- return (kret);
-}
-\f
-/*
- * kdb5_context_externalize() - Externalize the database context.
- */
-static krb5_error_code
-kdb5_context_externalize(krb5_context kcontext, krb5_pointer arg,
- krb5_octet **buffer, size_t *lenremain)
-{
- krb5_error_code kret;
- krb5_db2_context *dbctx;
- size_t required;
- krb5_octet *bp;
- size_t remain;
-
- required = 0;
- bp = *buffer;
- remain = *lenremain;
- kret = EINVAL;
- if ((dbctx = (krb5_db2_context *) arg)) {
- kret = ENOMEM;
- if (!kdb5_context_size(kcontext, arg, &required) &&
- (required <= remain)) {
- /* Write magic number */
- (void) krb5_ser_pack_int32(KV5M_DB_CONTEXT, &bp, &remain);
-
- /* Write inited flag */
- (void) krb5_ser_pack_int32((krb5_int32) dbctx->db_inited,
- &bp, &remain);
-
- /* Write blocking lock lockmode */
- (void) krb5_ser_pack_int32((krb5_int32) dbctx->db_nb_locks,
- &bp, &remain);
-
- /* Write lock count */
- (void) krb5_ser_pack_int32((krb5_int32)
- (dbctx->db_inited) ?
- dbctx->db_locks_held : 0, &bp, &remain);
-
- /* Write lock mode */
- (void) krb5_ser_pack_int32((krb5_int32)
- (dbctx->db_inited) ?
- dbctx->db_lock_mode : 0, &bp, &remain);
-
- /* Write length of database name */
- (void) krb5_ser_pack_int32((dbctx->db_inited && dbctx->db_name) ?
- (krb5_int32) strlen(dbctx->db_name) : 0,
- &bp, &remain);
- if (dbctx->db_inited && dbctx->db_name)
- (void) krb5_ser_pack_bytes((krb5_octet *) dbctx->db_name,
- strlen(dbctx->db_name),
- &bp, &remain);
-
- /* Write trailer */
- (void) krb5_ser_pack_int32(KV5M_DB_CONTEXT, &bp, &remain);
- kret = 0;
- *buffer = bp;
- *lenremain = remain;
- }
- }
- return (kret);
-}
-\f
-/*
- * kdb5_context_internalize() - Internalize the database context.
- */
-static krb5_error_code
-kdb5_context_internalize(krb5_context kcontext,
- krb5_pointer *argp,
- krb5_octet **buffer,
- size_t *lenremain)
-{
- krb5_error_code kret;
- krb5_context tmpctx;
- krb5_db2_context *dbctx;
- krb5_int32 ibuf;
- krb5_octet *bp;
- size_t remain;
- krb5_int32 iflag;
- krb5_int32 nb_lockmode;
- krb5_int32 lockcount;
- krb5_int32 lockmode;
- krb5_int32 dbnamelen;
- krb5_boolean nb_lock;
- char *dbname;
-
- bp = *buffer;
- remain = *lenremain;
- kret = EINVAL;
- dbctx = (krb5_db2_context *) NULL;
- /* Read our magic number */
- if (krb5_ser_unpack_int32(&ibuf, &bp, &remain))
- ibuf = 0;
- if (ibuf == KV5M_DB_CONTEXT) {
- kret = ENOMEM;
-
- if (!(kret = krb5_ser_unpack_int32(&iflag, &bp, &remain)) &&
- !(kret = krb5_ser_unpack_int32(&nb_lockmode, &bp, &remain)) &&
- !(kret = krb5_ser_unpack_int32(&lockcount, &bp, &remain)) &&
- !(kret = krb5_ser_unpack_int32(&lockmode, &bp, &remain)) &&
- !(kret = krb5_ser_unpack_int32(&dbnamelen, &bp, &remain)) &&
- !(kret = krb5_init_context(&tmpctx))) {
- if (iflag) {
- dbname = (char *) NULL;
- if (dbnamelen &&
- (dbname = (char *) malloc((size_t) (dbnamelen + 1)))) {
- kret = krb5_ser_unpack_bytes((krb5_octet *) dbname,
- (size_t) dbnamelen,
- &bp, &remain);
- if (!kret)
- dbname[dbnamelen] = '\0';
- }
- if (!kret &&
- (!dbname || !(kret = krb5_db_set_name(tmpctx, dbname))) &&
- !(kret = krb5_db_init(tmpctx))) {
- dbctx = (krb5_db2_context *) tmpctx->db_context;
- (void) krb5_db2_db_set_lockmode(tmpctx, 0);
- if (lockmode)
- kret = krb5_db2_db_lock(tmpctx, lockmode);
- if (!kret && lockmode)
- dbctx->db_locks_held = lockcount;
- nb_lock = nb_lockmode & 0xff;
- (void) krb5_db2_db_set_lockmode(tmpctx, nb_lock);
- }
- if (dbname)
- krb5_xfree(dbname);
- }
- if (!kret)
- kret = krb5_ser_unpack_int32(&ibuf, &bp, &remain);
- if (kret || (ibuf != KV5M_DB_CONTEXT))
- kret = EINVAL;
-
- if (kret) {
- if (dbctx)
- krb5_db_fini(tmpctx);
- } else
- tmpctx->db_context = NULL;
- krb5_free_context(tmpctx);
- }
- }
- if (!kret) {
- *buffer = bp;
- *lenremain = remain;
- *argp = (krb5_pointer) dbctx;
- }
- return (kret);
-}
-
-/* Dispatch entry */
-static const krb5_ser_entry kdb5_context_ser_entry = {
- KV5M_DB_CONTEXT, /* Type */
- kdb5_context_size, /* Sizer routine */
- kdb5_context_externalize, /* Externalize routine */
- kdb5_context_internalize /* Externalize routine */
-};
-
-/*
- * Register serializer.
- */
-krb5_error_code
-krb5_ser_db_context_init(kcontext)
- krb5_context kcontext;
-{
- return (krb5_register_serializer(kcontext, &kdb5_context_ser_entry));
-}
-
-#endif /* 0 - pradx */
-
/*
* DAL API functions
*/
projects / krb5.git / commitdiff