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v2 improve processing of invalid data.

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reject attempts to add segments to suffixes, which do not exist or are not configured.
    check completenes and validity of segment attributes

    cf ticket 5088: https://fedorahosted.org/freeipa/ticket/5088

Reviewed-By: Thierry Bordaz <tbordaz@redhat.com>
This commit is contained in:
Ludwig Krispenz 2015-06-30 16:02:16 +02:00 committed by Tomas Babej
parent 3827137b32
commit 5b76df4e73
3 changed files with 43 additions and 14 deletions
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11
daemons/ipa-slapi-plugins/topology/topology_post.c
View File

@ -66,9 +66,14 @@ ipa_topo_post_add(Slapi_PBlock *pb)
/* initialize the shared topology data for a replica */
break;
case TOPO_SEGMENT_ENTRY: {
TopoReplicaSegment *tsegm;
TopoReplicaSegment *tsegm = NULL;
TopoReplica *tconf = ipa_topo_util_get_conf_for_segment(add_entry);
char *status;
if (tconf == NULL) {
slapi_log_error(SLAPI_LOG_FATAL, IPA_TOPO_PLUGIN_SUBSYSTEM,
"ipa_topo_post_add - config area for segment not found\n");
break;
}
/* TBD check that one node is the current server and
* that the other node is also managed by the
* shared config.
@ -225,9 +230,9 @@ ipa_topo_post_del(Slapi_PBlock *pb)
case TOPO_SEGMENT_ENTRY: {
/* check if corresponding agreement exists and delete */
TopoReplica *tconf = ipa_topo_util_get_conf_for_segment(del_entry);
TopoReplicaSegment *tsegm;
TopoReplicaSegment *tsegm = NULL;
char *status;
tsegm = ipa_topo_util_find_segment(tconf, del_entry);
if (tconf) tsegm = ipa_topo_util_find_segment(tconf, del_entry);
if (tsegm == NULL) {
slapi_log_error(SLAPI_LOG_FATAL, IPA_TOPO_PLUGIN_SUBSYSTEM,
"segment to be deleted does not exist\n");

40
daemons/ipa-slapi-plugins/topology/topology_pre.c
View File

@ -284,7 +284,7 @@ ipa_topo_connection_exists(struct node_fanout *fanout, char* from, char *to)
}
int
ipa_topo_check_segment_is_valid(Slapi_PBlock *pb)
ipa_topo_check_segment_is_valid(Slapi_PBlock *pb, char **errtxt)
{
int rc = 0;
Slapi_Entry *add_entry;
@ -307,20 +307,38 @@ ipa_topo_check_segment_is_valid(Slapi_PBlock *pb)
char *leftnode = slapi_entry_attr_get_charptr(add_entry,"ipaReplTopoSegmentLeftNode");
char *rightnode = slapi_entry_attr_get_charptr(add_entry,"ipaReplTopoSegmentRightNode");
char *dir = slapi_entry_attr_get_charptr(add_entry,"ipaReplTopoSegmentDirection");
if (strcasecmp(dir,SEGMENT_DIR_BOTH) && strcasecmp(dir,SEGMENT_DIR_LEFT_ORIGIN) &&
if (leftnode == NULL || rightnode == NULL || dir == NULL) {
*errtxt = slapi_ch_smprintf("Segment definition is incomplete"
". Add rejected.\n");
rc = 1;
} else if (strcasecmp(dir,SEGMENT_DIR_BOTH) && strcasecmp(dir,SEGMENT_DIR_LEFT_ORIGIN) &&
strcasecmp(dir,SEGMENT_DIR_RIGHT_ORIGIN)) {
*errtxt = slapi_ch_smprintf("Segment has unsupported direction"
". Add rejected.\n");
slapi_log_error(SLAPI_LOG_FATAL, IPA_TOPO_PLUGIN_SUBSYSTEM,
"segment has unknown direction: %s\n", dir);
rc = 1;
} else if (0 == strcasecmp(leftnode,rightnode)) {
*errtxt = slapi_ch_smprintf("Segment is self referential"
". Add rejected.\n");
slapi_log_error(SLAPI_LOG_FATAL, IPA_TOPO_PLUGIN_SUBSYSTEM,
"segment is self referential\n");
rc = 1;
} else {
TopoReplicaSegment *tsegm;
TopoReplicaSegment *tsegm = NULL;
TopoReplica *tconf = ipa_topo_util_get_conf_for_segment(add_entry);
tsegm = ipa_topo_util_find_segment(tconf, add_entry);
if (tconf == NULL ) {
*errtxt = slapi_ch_smprintf("Segment configuration suffix not found"
". Add rejected.\n");
slapi_log_error(SLAPI_LOG_FATAL, IPA_TOPO_PLUGIN_SUBSYSTEM,
"topology not configured for segment\n");
rc = 1;
} else {
tsegm = ipa_topo_util_find_segment(tconf, add_entry);
}
if (tsegm) {
*errtxt = slapi_ch_smprintf("Segment already exists in topology"
". Add rejected.\n");
slapi_log_error(SLAPI_LOG_FATAL, IPA_TOPO_PLUGIN_SUBSYSTEM,
"segment to be added does already exist\n");
rc = 1;
@ -375,7 +393,13 @@ ipa_topo_check_topology_disconnect(Slapi_PBlock *pb)
return 0;
} else {
TopoReplica *tconf = ipa_topo_util_get_conf_for_segment(del_entry);
TopoReplicaSegment *tsegm;
if (tconf == NULL) {
slapi_log_error(SLAPI_LOG_FATAL, IPA_TOPO_PLUGIN_SUBSYSTEM,
"topology not configured for segment\n");
rc = 0; /* this segment is not controlled by the plugin */
goto done;
}
TopoReplicaSegment *tsegm = NULL;
tsegm = ipa_topo_util_find_segment(tconf, del_entry);
if (tsegm == NULL) {
slapi_log_error(SLAPI_LOG_FATAL, IPA_TOPO_PLUGIN_SUBSYSTEM,
@ -412,6 +436,7 @@ ipa_topo_pre_ignore_op(Slapi_PBlock *pb)
int ipa_topo_pre_add(Slapi_PBlock *pb)
{
int result = SLAPI_PLUGIN_SUCCESS;
char *errtxt = NULL;
slapi_log_error(SLAPI_LOG_PLUGIN, IPA_TOPO_PLUGIN_SUBSYSTEM,
"--> ipa_topo_pre_add\n");
@ -432,11 +457,8 @@ int ipa_topo_pre_add(Slapi_PBlock *pb)
slapi_pblock_set(pb, SLAPI_PB_RESULT_TEXT, errtxt);
slapi_pblock_set(pb, SLAPI_RESULT_CODE, &rc);
result = SLAPI_PLUGIN_FAILURE;
} else if (ipa_topo_check_segment_is_valid(pb)) {
} else if (ipa_topo_check_segment_is_valid(pb, &errtxt)) {
int rc = LDAP_UNWILLING_TO_PERFORM;
char *errtxt;
errtxt = slapi_ch_smprintf("Segment already exists in topology or"
" is self referential. Add rejected.\n");
slapi_pblock_set(pb, SLAPI_PB_RESULT_TEXT, errtxt);
slapi_pblock_set(pb, SLAPI_RESULT_CODE, &rc);
result = SLAPI_PLUGIN_FAILURE;

6
daemons/ipa-slapi-plugins/topology/topology_util.c
View File

@ -448,8 +448,10 @@ ipa_topo_util_get_conf_for_segment(Slapi_Entry *segment_entry)
char *parent = slapi_dn_parent(slapi_entry_get_dn_const(segment_entry));
Slapi_Entry *conf = ipa_topo_util_get_entry(parent);
tconf = ipa_topo_util_conf_from_entry(conf);
slapi_entry_free(conf);
if (conf) {
tconf = ipa_topo_util_conf_from_entry(conf);
slapi_entry_free(conf);
}
return tconf;
}