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s4:dsdb/common/util - Check for the right forest/domain function level

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This adds a function which performs the check for the supported forest and
domain function levels. On an unsuccessful result a textual error message can
be created (parameter "errmsg" != NULL) which gives hints for the user to help
him fixing the issue.
This commit is contained in:
Matthias Dieter Wallnöfer 2009-09-20 22:49:55 +02:00
parent dedd32d323
commit 6ec69f3e77
1 changed files with 57 additions and 0 deletions
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57
source4/dsdb/common/util.c
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@ -1432,6 +1432,63 @@ struct ldb_dn *samdb_server_site_dn(struct ldb_context *ldb, TALLOC_CTX *mem_ctx
return server_site_dn;
}
/*
* This works out if we are running on a supported forest/domain function
* level. Basically this means that we don't support mixed/interim (NT 4 DC
* support) levels.
* If errmsg isn't NULL we write in an adequate error message for printing out
* to the screen.
*/
bool samdb_is_capable_dc(struct ldb_context *ldb, TALLOC_CTX *mem_ctx,
char **errmsg)
{
int32_t level_forest, level_domain, level_domain_mixed;
bool ret = true;
level_forest = (int32_t) samdb_search_int64(ldb, mem_ctx, -1,
samdb_partitions_dn(ldb, mem_ctx), "msDS-Behavior-Version",
NULL);
level_domain = (int32_t) samdb_search_int64(ldb, mem_ctx, -1,
samdb_base_dn(ldb), "msDS-Behavior-Version", NULL);
level_domain_mixed = (int32_t) samdb_search_int64(ldb, mem_ctx, -1,
samdb_base_dn(ldb), "nTMixedDomain", NULL);
if (errmsg != NULL)
*errmsg = talloc_asprintf(mem_ctx, "");
if (level_forest == -1 || level_domain == -1 || level_domain_mixed == -1) {
ret = false;
if (errmsg != NULL)
*errmsg = talloc_strdup_append(*errmsg,
"\nATTENTION: Invalid values for forest and/or domain function level!"
);
}
if (level_forest == DS_DOMAIN_FUNCTION_2003_MIXED) {
ret = false;
if (errmsg != NULL)
*errmsg = talloc_strdup_append(*errmsg,
"\nATTENTION: You run SAMBA 4 on the 2003 with mixed domains (NT4 DC support) forest level. This isn't supported!"
);
}
if ((level_domain == DS_DOMAIN_FUNCTION_2000 && level_domain_mixed != 0)
|| level_domain == DS_DOMAIN_FUNCTION_2003_MIXED) {
ret = false;
if (errmsg != NULL)
*errmsg = talloc_strdup_append(*errmsg,
"\nATTENTION: You run SAMBA 4 on a mixed/interim (NT4 DC support) domain level. This isn't supported!"
);
}
if ((!ret) && (errmsg != NULL)) {
*errmsg = talloc_strdup_append(*errmsg,
"\nPlease raise the domain and/or forest level to an adequate value. Use for this the 'domainlevel' tool, the MS AD MMC tools or manipulate the needed attributes directly."
);
}
return ret;
}
/*
work out if we are the PDC for the domain of the current open ldb
*/