This commit was generated by cvs2svn to compensate for changes in r786,

[libnl.git] / lib / route / rtnl.c

diff --git a/lib/route/rtnl.c b/lib/route/rtnl.c
new file mode 100644 (file)
index 0000000..4fd2660
--- /dev/null
+++ b/lib/route/rtnl.c
@@ -0,0 +1,168 @@
+/*
+ * lib/route/rtnl.c            Routing Netlink
+ *
+ *     This library is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU Lesser General Public
+ *     License as published by the Free Software Foundation version 2.1
+ *     of the License.
+ *
+ * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
+ */
+
+/**
+ * @defgroup rtnl Routing Netlink
+ * @{
+ */
+
+#include <netlink-local.h>
+#include <netlink/netlink.h>
+#include <netlink/utils.h>
+#include <netlink/route/rtnl.h>
+
+/**
+ * @name Sending
+ * @{
+ */
+
+/**
+ * Send routing netlink request message
+ * @arg handle         Netlink handle.
+ * @arg type           Netlink message type.
+ * @arg family         Address family.
+ * @arg flags          Additional netlink message flags.
+ *
+ * Fills out a routing netlink request message and sends it out
+ * using nl_send_simple().
+ *
+ * @return 0 on success or a negative error code.
+ */
+int nl_rtgen_request(struct nl_handle *handle, int type, int family, int flags)
+{
+       struct rtgenmsg gmsg = {
+               .rtgen_family = family,
+       };
+
+       return nl_send_simple(handle, type, flags, &gmsg, sizeof(gmsg));
+}
+
+/** @} */
+
+/**
+ * @name Routing Type Translations
+ * @{
+ */
+
+static struct trans_tbl rtntypes[] = {
+       __ADD(RTN_UNSPEC,unspec)
+       __ADD(RTN_UNICAST,unicast)
+       __ADD(RTN_LOCAL,local)
+       __ADD(RTN_BROADCAST,broadcast)
+       __ADD(RTN_ANYCAST,anycast)
+       __ADD(RTN_MULTICAST,multicast)
+       __ADD(RTN_BLACKHOLE,blackhole)
+       __ADD(RTN_UNREACHABLE,unreachable)
+       __ADD(RTN_PROHIBIT,prohibit)
+       __ADD(RTN_THROW,throw)
+       __ADD(RTN_NAT,nat)
+       __ADD(RTN_XRESOLVE,xresolve)
+};
+
+/**
+ * Convert routing type to character string.
+ * @arg type           Routing type.
+ * @arg buf            Destination buffer.
+ * @arg size           Size of destination buffer.
+ *
+ * Converts a routing type to a character string and stores it in
+ * the specified destination buffer.
+ *
+ * @return The destination buffer or the type encoded in hexidecimal
+ *         form if the routing type is unknown.
+ */
+char *nl_rtntype2str(int type, char *buf, size_t size)
+{
+       return __type2str(type, buf, size, rtntypes, ARRAY_SIZE(rtntypes));
+}
+
+/**
+ * Convert character string to routing type.
+ * @arg name           Name of routing type.
+ *
+ * Converts the provided character string specifying a routing
+ * type to the corresponding numeric value.
+ *
+ * @return Routing type or a negative value if no match was found.
+ */
+int nl_str2rtntype(const char *name)
+{
+       return __str2type(name, rtntypes, ARRAY_SIZE(rtntypes));
+}
+
+/** @} */
+
+/**
+ * @name Scope Translations
+ * @{
+ */
+
+static struct trans_tbl scopes[] = {
+       __ADD(255,nowhere)
+       __ADD(254,host)
+       __ADD(253,link)
+       __ADD(200,site)
+       __ADD(0,global)
+};
+
+/**
+ * Convert scope identifier to character string.
+ * @arg scope          Scope identifier.
+ * @arg buf            Destination buffer
+ * @arg size           Size of destination buffer.
+ *
+ * Converts a scope identifier to a character string and stores it in
+ * the specified destination buffer.
+ *
+ * @return The destination buffer or the type encoded in hexidecimal
+ *         form if the scope identifier is unknown.
+ */
+char *rtnl_scope2str(int scope, char *buf, size_t size)
+{
+       return __type2str(scope, buf, size, scopes, ARRAY_SIZE(scopes));
+}
+
+/**
+ * Convert character string to scope identifier.
+ * @arg name           Name of scope.
+ *
+ * Converts the provided character string specifying a scope identifier
+ * to the corresponding numeric value.
+ *
+ * @return Scope identifier or a negative value if no match was found.
+ */
+int rtnl_str2scope(const char *name)
+{
+       return __str2type(name, scopes, ARRAY_SIZE(scopes));
+}
+
+/** @} */
+
+/**
+ * @name Realms Translations
+ * @{
+ */
+
+char * rtnl_realms2str(uint32_t realms, char *buf, size_t len)
+{
+       int from = RTNL_REALM_FROM(realms);
+       int to = RTNL_REALM_TO(realms);
+
+       snprintf(buf, len, "%d/%d", from, to);
+
+       return buf;
+}
+
+/** @} */
+
+
+
+/** @} */