[Cluster-devel] Cluster Project branch, master, updated. cluster-2.99.05-18-g39d39c6
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fabbione at sourceware.org
Wed Jun 25 08:28:14 UTC 2008
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- Log -----------------------------------------------------------------
commit 39d39c61e694e7d7f0869c477392e532e8088a1d
Author: Fabio M. Di Nitto <fdinitto at redhat.com>
Date: Wed Jun 25 10:25:57 2008 +0200
[CONFIG] Add cluster.conf direct loader
This pluing allows to load cluster.conf directly into the objdb
for configuration.
With this plugin there is no need to have ccsd running.
To use:
make sure that all nodes have the same cluster.conf
form the cluster with:
cman_tool <usual_options> -C xmlconfig join
Signed-off-by: Fabio M. Di Nitto <fdinitto at redhat.com>
commit 6f456d1989c82da80d1d028954c2cd9db35e9ccc
Author: Fabio M. Di Nitto <fdinitto at redhat.com>
Date: Wed Jun 25 10:24:48 2008 +0200
[CONFIG] Make sure to reset xml index in not in list mode
Signed-off-by: Fabio M. Di Nitto <fdinitto at redhat.com>
commit b69b0d50c941306180f00812c38414fe5bb2cfce
Author: Fabio M. Di Nitto <fdinitto at redhat.com>
Date: Wed Jun 25 09:09:41 2008 +0200
[CCS] Remove duplicate header
Signed-off-by: Fabio M. Di Nitto <fdinitto at redhat.com>
-----------------------------------------------------------------------
Summary of changes:
ccs/daemon/misc.c | 1 -
config/Makefile | 2 +-
config/libs/libccsconfdb/libccs.c | 2 +
{bindings/perl => config/plugins}/Makefile | 2 +-
{ccs/ccsais => config/plugins/xml}/Makefile | 13 +-
config/plugins/xml/config.c | 295 +++++++++++++++++++++++++++
6 files changed, 304 insertions(+), 11 deletions(-)
copy {bindings/perl => config/plugins}/Makefile (85%)
copy {ccs/ccsais => config/plugins/xml}/Makefile (65%)
create mode 100644 config/plugins/xml/config.c
diff --git a/ccs/daemon/misc.c b/ccs/daemon/misc.c
index 96a7867..57eb601 100644
--- a/ccs/daemon/misc.c
+++ b/ccs/daemon/misc.c
@@ -11,7 +11,6 @@
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <errno.h>
-#include <libxml/parser.h>
#include <errno.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
diff --git a/config/Makefile b/config/Makefile
index b244f90..366c241 100644
--- a/config/Makefile
+++ b/config/Makefile
@@ -1,4 +1,4 @@
include ../make/defines.mk
include $(OBJDIR)/make/passthrough.mk
-SUBDIRS=libs tools
+SUBDIRS=libs plugins tools
diff --git a/config/libs/libccsconfdb/libccs.c b/config/libs/libccsconfdb/libccs.c
index 63b65d1..ea67f8b 100644
--- a/config/libs/libccsconfdb/libccs.c
+++ b/config/libs/libccsconfdb/libccs.c
@@ -594,6 +594,8 @@ int _ccs_get_fullxpath(int desc, const char *query, char **rtn, int list)
if (list && !strcmp(query, previous_query))
xmllistindex++;
+ else
+ xmllistindex = 0;
memset(realquery, 0, PATH_MAX + 16);
snprintf(realquery, PATH_MAX + 16 - 1, "/objdbmaindoc%s", query);
diff --git a/bindings/perl/Makefile b/config/plugins/Makefile
similarity index 85%
copy from bindings/perl/Makefile
copy to config/plugins/Makefile
index 810b2d4..1305555 100644
--- a/bindings/perl/Makefile
+++ b/config/plugins/Makefile
@@ -1,4 +1,4 @@
include ../../make/defines.mk
include $(OBJDIR)/make/passthrough.mk
-SUBDIRS=
+SUBDIRS=xml
diff --git a/ccs/ccsais/Makefile b/config/plugins/xml/Makefile
similarity index 65%
copy from ccs/ccsais/Makefile
copy to config/plugins/xml/Makefile
index f3eacc7..9274336 100644
--- a/ccs/ccsais/Makefile
+++ b/config/plugins/xml/Makefile
@@ -1,30 +1,27 @@
-TARGET= config_ccs.lcrso
+TARGET= config_xml.lcrso
LCRSOT=$(TARGET)
-all: depends ${TARGET}
+all: ${TARGET}
-include ../../make/defines.mk
+include ../../../make/defines.mk
include $(OBJDIR)/make/cobj.mk
include $(OBJDIR)/make/clean.mk
include $(OBJDIR)/make/install.mk
include $(OBJDIR)/make/uninstall.mk
CFLAGS += -fPIC
-CFLAGS += -I$(S)/../libccscompat
+CFLAGS += `xml2-config --cflags`
CFLAGS += -I${cmanincdir}/../daemon
CFLAGS += -I${incdir}
-LDFLAGS += -L../libccscompat -lccscompat
+LDFLAGS += `xml2-config --libs`
OBJS= config.o
${TARGET}: ${OBJS}
$(CC) -shared -Wl,-soname,$@ -o $@ $^ $(LDFLAGS)
-depends:
- $(MAKE) -C ../libccscompat all
-
clean: generalclean
-include $(OBJS:.o=.d)
diff --git a/config/plugins/xml/config.c b/config/plugins/xml/config.c
new file mode 100644
index 0000000..1fd3e69
--- /dev/null
+++ b/config/plugins/xml/config.c
@@ -0,0 +1,295 @@
+#include <string.h>
+#include <limits.h>
+
+#include <libxml/parser.h>
+#include <libxml/tree.h>
+#include <libxml/xpath.h>
+#include <libxml/xpathInternals.h>
+
+#include <openais/service/objdb.h>
+#include <openais/service/config.h>
+#include <openais/lcr/lcr_comp.h>
+
+#include "logging.h"
+
+static int xml_readconfig(struct objdb_iface_ver0 *objdb, char **error_string);
+static int init_config(struct objdb_iface_ver0 *objdb, char *error_string);
+static char error_reason[1024];
+static int xmllistindex = 0;
+static char previous_query[PATH_MAX];
+
+/*
+ * Exports the interface for the service
+ */
+
+static struct config_iface_ver0 xmlconfig_iface_ver0 = {
+ .config_readconfig = xml_readconfig
+};
+
+static struct lcr_iface ifaces_ver0[2] = {
+ {
+ .name = "xmlconfig",
+ .version = 0,
+ .versions_replace = 0,
+ .versions_replace_count = 0,
+ .dependencies = 0,
+ .dependency_count = 0,
+ .constructor = NULL,
+ .destructor = NULL,
+ .interfaces = NULL,
+ }
+};
+
+static struct lcr_comp xml_comp_ver0 = {
+ .iface_count = 1,
+ .ifaces = ifaces_ver0,
+};
+
+__attribute__ ((constructor)) static void xml_comp_register(void) {
+ lcr_interfaces_set(&ifaces_ver0[0], &xmlconfig_iface_ver0);
+ lcr_component_register(&xml_comp_ver0);
+};
+
+static char *do_xml_query(xmlXPathContextPtr ctx, char *query, int list) {
+ xmlXPathObjectPtr obj = NULL;
+ xmlNodePtr node = NULL;
+ char *rtn = NULL;
+ int size = 0, nnv = 0;
+
+ if (list && !strcmp(query, previous_query))
+ xmllistindex++;
+ else
+ xmllistindex = 0;
+
+ obj = xmlXPathEvalExpression((xmlChar *)query, ctx);
+ if (obj && obj->nodesetval && (obj->nodesetval->nodeNr > 0)) {
+ if (xmllistindex >= obj->nodesetval->nodeNr) {
+ xmllistindex = 0;
+ goto fail;
+ }
+
+ node = obj->nodesetval->nodeTab[xmllistindex];
+ if (!node)
+ goto fail;
+
+ if (((node->type == XML_ATTRIBUTE_NODE) && strstr(query, "@*")) ||
+ ((node->type == XML_ELEMENT_NODE) && strstr(query, "child::*"))) {
+ if (node->children && node->children->content)
+ size = strlen((char *)node->children->content) +
+ strlen((char *)node->name)+2;
+ else
+ size = strlen((char *)node->name)+2;
+
+ nnv = 1;
+ } else {
+ if (node->children && node->children->content)
+ size = strlen((char *)node->children->content)+1;
+ else
+ goto fail;
+ }
+
+ rtn = malloc(size);
+ if (!rtn)
+ goto fail;
+
+ if (nnv)
+ sprintf(rtn, "%s=%s", node->name, node->children ? (char *)node->children->content:"");
+ else
+ sprintf(rtn, "%s", node->children ? node->children->content : node->name);
+
+ if(list)
+ strncpy(previous_query, query, PATH_MAX-1);
+ }
+
+fail:
+ if (obj)
+ xmlXPathFreeObject(obj);
+
+ return rtn;
+}
+
+static int should_alloc(xmlXPathContextPtr ctx, char *key)
+{
+ int keyerror = 1, childerr = 1;
+ char path[256];
+ char *str = NULL;
+
+ sprintf(path, "%s/@*", key);
+ str = do_xml_query(ctx, path, 1);
+ if (str) {
+ keyerror = 0;
+ free(str);
+ str = NULL;
+ }
+
+ sprintf(path, "%s/child::*", key);
+ str = do_xml_query(ctx, path, 1);
+ if(str) {
+ childerr = 0;
+ free(str);
+ str = NULL;
+ }
+
+ if (childerr && keyerror)
+ return 0;
+
+ return 1;
+}
+
+static int read_config_for(xmlXPathContextPtr ctx, struct objdb_iface_ver0 *objdb, unsigned int parent,
+ char *object, char *key, int always_create)
+{
+ char *str;
+ unsigned int object_handle = 0;
+ char path[256];
+ int gotcount = 0;
+ char *subkeys[52];
+ int subkeycount = 0;
+ int i;
+
+ if (should_alloc(ctx, key) || always_create) {
+ objdb->object_create(parent, &object_handle, object, strlen(object));
+ }
+
+ memset(previous_query, 0, PATH_MAX);
+ sprintf(path, "%s/@*", key);
+ /* Get the keys */
+ for (;;)
+ {
+ char *equal;
+
+ str = do_xml_query(ctx, path, 1);
+ if (!str)
+ break;
+
+ equal = strchr(str, '=');
+ if (equal)
+ {
+ *equal = 0;
+ objdb->object_key_create(object_handle, str, strlen(str),
+ equal+1, strlen(equal+1)+1);
+ gotcount++;
+ }
+ free(str);
+ }
+
+ /* Now look for sub-objects.
+ CCS can't cope with recursive queries so we have to store the result of
+ the subkey search */
+ memset(previous_query, 0, PATH_MAX);
+ memset(subkeys, 0, sizeof(subkeys));
+ sprintf(path, "%s/child::*", key);
+ for (;;)
+ {
+ char *equal;
+
+ str = do_xml_query(ctx, path, 1);
+ if (!str)
+ break;
+
+ /* CCS returns duplicate values for the numbered entries we use below.
+ eg. if there are 4 <clusternode/> entries it will return
+ clusternode=
+ clusternode=
+ clusternode=
+ clusternode=
+ which is not helpful to us cos we retrieve them as
+ clusternode[1]
+ clusternode[2]
+ clusternode[3]
+ clusternode[4]
+ so we just store unique keys.
+ */
+ equal = strchr(str, '=');
+ if (equal)
+ *equal = 0;
+
+ if (subkeycount > 0 && strcmp(str, subkeys[subkeycount-1]) == 0)
+ {
+ free(str);
+ break;
+ }
+ subkeys[subkeycount++] = str;
+ }
+
+ for (i=0; i<subkeycount; i++)
+ {
+ int count = 0;
+ str = subkeys[i];
+ gotcount++;
+
+ for (;;)
+ {
+ char subpath[1024];
+
+ /* Found a subkey, iterate through it's sub sections */
+ sprintf(subpath, "%s/%s[%d]", key, str, ++count);
+ if (!read_config_for(ctx, objdb, object_handle, str, subpath, 0))
+ break;
+ }
+ free(str);
+ }
+ return gotcount;
+}
+
+static int xml_readconfig(struct objdb_iface_ver0 *objdb, char **error_string)
+{
+ int ret;
+
+ /* We need to set this up to internal defaults too early */
+ openlog("openais", LOG_CONS|LOG_PID, SYSLOGFACILITY);
+
+ /* Read low-level totem/aisexec etc config from cluster.conf */
+ if ( !(ret = init_config(objdb, error_reason)) )
+ sprintf (error_reason, "%s", "Successfully read config from " DEFAULT_CONFIG_DIR "/" DEFAULT_CONFIG_FILE "\n");
+ else
+ sprintf (error_reason, "%s", "Unable to read config from " DEFAULT_CONFIG_DIR "/" DEFAULT_CONFIG_FILE "\n");
+
+ *error_string = error_reason;
+
+ return ret;
+}
+
+
+static int init_config(struct objdb_iface_ver0 *objdb, char *error_string)
+{
+ int err = 0;
+ xmlDocPtr doc = NULL;
+ xmlXPathContextPtr ctx = NULL;
+
+ /* openfile */
+
+ doc = xmlParseFile(DEFAULT_CONFIG_DIR "/" DEFAULT_CONFIG_FILE);
+ if (!doc) {
+ err = -1;
+ goto fail;
+ }
+
+ ctx = xmlXPathNewContext(doc);
+ if (!ctx) {
+ err = -1;
+ goto fail;
+ }
+
+ /* load it in objdb */
+
+ /* These first few are just versions of openais.conf */
+ read_config_for(ctx, objdb, OBJECT_PARENT_HANDLE, "totem", "/cluster/totem", 1);
+ read_config_for(ctx, objdb, OBJECT_PARENT_HANDLE, "logging", "/cluster/logging", 1);
+ read_config_for(ctx, objdb, OBJECT_PARENT_HANDLE, "event", "/cluster/event", 1);
+ read_config_for(ctx, objdb, OBJECT_PARENT_HANDLE, "aisexec", "/cluster/aisexec", 1);
+ read_config_for(ctx, objdb, OBJECT_PARENT_HANDLE, "amf", "/cluster/amf", 1);
+
+ /* This is stuff specific to us, eg quorum device timeout */
+ read_config_for(ctx, objdb, OBJECT_PARENT_HANDLE, "cluster", "/cluster", 1);
+
+fail:
+
+ if (ctx)
+ xmlXPathFreeContext(ctx);
+
+ if (doc)
+ xmlFreeDoc(doc);
+
+ return err;
+}
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