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Add support defaultNamingContext and add --basedn to migrate-ds

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There are two sides to this, the server and client side.

On the server side we attempt to add a defaultNamingContext on already
installed servers. This will fail on older 389-ds instances but the
failure is not fatal. New installations on versions of 389-ds that
support this attribute will have it already defined.

On the client side we need to look for both defaultNamingContext and
namingContexts. We still need to check that the defaultNamingContext
is an IPA server (info=IPAV2).

The migration change also takes advantage of this and adds a new
option which allows one to provide a basedn to use instead of trying
to detect it.

https://fedorahosted.org/freeipa/ticket/1919
https://fedorahosted.org/freeipa/ticket/2314
This commit is contained in:
Rob Crittenden
2012-01-30 16:29:32 -05:00
committed by Martin Kosek
parent 37cdbae234
commit e889b82599
6 changed files with 100 additions and 42 deletions
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82
ipa-client/ipa-join.c
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@@ -276,16 +276,52 @@ fail:
return NULL;
}
/*
* Given a list of naming contexts check each one to see if it has
* an IPA v2 server in it. The first one we find wins.
*/
static int
check_ipa_server(LDAP *ld, char **ldap_base, struct berval **vals)
{
struct berval **infovals;
LDAPMessage *entry, *res = NULL;
char *info_attrs[] = {"info", NULL};
int i, ret = 0;
for (i = 0; !*ldap_base && vals[i]; i++) {
ret = ldap_search_ext_s(ld, vals[i]->bv_val,
LDAP_SCOPE_BASE, "(info=IPA*)", info_attrs,
0, NULL, NULL, NULL, 0, &res);
if (ret != LDAP_SUCCESS) {
break;
}
entry = ldap_first_entry(ld, res);
infovals = ldap_get_values_len(ld, entry, info_attrs[0]);
if (!strcmp(infovals[0]->bv_val, "IPA V2.0"))
*ldap_base = strdup(vals[i]->bv_val);
ldap_msgfree(res);
res = NULL;
}
return ret;
}
/*
* Determine the baseDN of the remote server. Look first for a
* defaultNamingContext, otherwise fall back to reviewing each
* namingContext.
*/
static int
get_root_dn(const char *ipaserver, char **ldap_base)
{
LDAP *ld = NULL;
char *root_attrs[] = {"namingContexts", NULL};
char *info_attrs[] = {"info", NULL};
char *root_attrs[] = {"namingContexts", "defaultNamingContext", NULL};
LDAPMessage *entry, *res = NULL;
struct berval **ncvals;
struct berval **infovals;
int i, ret, rval = 0;
struct berval **defvals;
int ret, rval = 0;
ld = connect_ldap(ipaserver, NULL, NULL);
if (!ld) {
@@ -306,33 +342,27 @@ get_root_dn(const char *ipaserver, char **ldap_base)
*ldap_base = NULL;
/* loop through to find the IPA context */
entry = ldap_first_entry(ld, res);
ncvals = ldap_get_values_len(ld, entry, root_attrs[0]);
if (!ncvals) {
fprintf(stderr, _("No values for %s"), root_attrs[0]);
rval = 14;
goto done;
}
for (i = 0; !*ldap_base && ncvals[i]; i++) {
ret = ldap_search_ext_s(ld, ncvals[i]->bv_val,
LDAP_SCOPE_BASE, "(info=IPA*)", info_attrs,
0, NULL, NULL, NULL, 0, &res);
if (ret != LDAP_SUCCESS) {
break;
defvals = ldap_get_values_len(ld, entry, root_attrs[1]);
if (defvals) {
ret = check_ipa_server(ld, ldap_base, defvals);
}
ldap_value_free_len(defvals);
/* loop through to find the IPA context */
if (ret == LDAP_SUCCESS && !*ldap_base) {
ncvals = ldap_get_values_len(ld, entry, root_attrs[0]);
if (!ncvals) {
fprintf(stderr, _("No values for %s"), root_attrs[0]);
rval = 14;
ldap_value_free_len(ncvals);
goto done;
}
entry = ldap_first_entry(ld, res);
infovals = ldap_get_values_len(ld, entry, info_attrs[0]);
if (!strcmp(infovals[0]->bv_val, "IPA V2.0"))
*ldap_base = strdup(ncvals[i]->bv_val);
ldap_msgfree(res);
res = NULL;
ret = check_ipa_server(ld, ldap_base, ncvals);
ldap_value_free_len(ncvals);
}
ldap_value_free_len(ncvals);
if (ret != LDAP_SUCCESS) {
fprintf(stderr, _("Search for IPA namingContext failed with error %d\n"), ret);
rval = 14;