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

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

diff --git a/lib/route/nexthop.c b/lib/route/nexthop.c
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+++ b/lib/route/nexthop.c
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+/*
+ * lib/route/nexthop.c Routing Nexthop
+ *
+ *     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>
+ */
+
+/**
+ * @ingroup route
+ * @defgroup nexthop Nexthop
+ * @brief
+ * @{
+ */
+
+#include <netlink-local.h>
+#include <netlink/netlink.h>
+#include <netlink/utils.h>
+#include <netlink/route/rtnl.h>
+#include <netlink/route/route.h>
+
+/** @cond SKIP */
+#define NEXTHOP_HAS_FLAGS   0x000001
+#define NEXTHOP_HAS_WEIGHT  0x000002
+#define NEXTHOP_HAS_IFINDEX 0x000004
+#define NEXTHOP_HAS_GATEWAY 0x000008
+/** @endcond */
+
+/**
+ * @name Nexthop Allocation/Freeage
+ * @{
+ */
+
+/**
+ * Allocate a routing nexthop.
+ * @return Newly allocated routing nexthop object.
+ */
+struct rtnl_nexthop *rtnl_route_nh_alloc(void)
+{
+       struct rtnl_nexthop *nh;
+
+       nh = calloc(1, sizeof(*nh));
+       if (!nh) {
+               nl_errno(ENOMEM);
+               return NULL;
+       }
+
+       nl_init_list_head(&nh->rtnh_list);
+
+       return nh;
+}
+
+/**
+ * Free a routing nexthop.
+ * @arg nh             Routing nexthop to be freed.
+ */
+void rtnl_route_nh_free(struct rtnl_nexthop *nh)
+{
+       nl_addr_put(nh->rtnh_gateway);
+       free(nh);
+}
+
+/** @} */
+/**
+ * @name Attribute: Weight
+ */
+
+/**
+ * Set weight of routing nexthop.
+ * @arg nh             Routing nexthop.
+ * @arg weight         New weight value.
+ */
+void rtnl_route_nh_set_weight(struct rtnl_nexthop *nh, int weight)
+{
+       nh->rtnh_weight = weight;
+       nh->rtnh_mask |= NEXTHOP_HAS_WEIGHT;
+}
+
+/**
+ * Get weight of routing nexthop.
+ * @arg nh             Routing nexthop.
+ * @return Weight value or 0 if not available.
+ */
+int rtnl_route_nh_get_weight(struct rtnl_nexthop *nh)
+{
+       if (nh->rtnh_mask & NEXTHOP_HAS_WEIGHT)
+               return nh->rtnh_weight;
+       else
+               return 0;
+}
+
+/** @} */
+/**
+ * @name Attribute: Interface Index
+ * @{
+ */
+
+/**
+ * Set interface index for outgoing interface of routing nexthop.
+ * @arg nh             Routing nexthop.
+ * @arg ifindex                New interface index.
+ */
+void rtnl_route_nh_set_ifindex(struct rtnl_nexthop *nh, int ifindex)
+{
+       nh->rtnh_ifindex = ifindex;
+       nh->rtnh_mask |= NEXTHOP_HAS_IFINDEX;
+}
+
+/**
+ * Get interface index of outgoing index of routing nexthop.
+ * @arg nh             Routing nexthop.
+ * @return Interface index or -1 if not available.
+ */
+int rtnl_route_nh_get_ifindex(struct rtnl_nexthop *nh)
+{
+       if (nh->rtnh_mask & NEXTHOP_HAS_IFINDEX)
+               return nh->rtnh_ifindex;
+       else
+               return -1;
+}      
+
+/** @} */
+/**
+ * @name Attribute: Gateway Address
+ * @{
+ */
+
+/**
+ * Set gateway address of routing nexthop.
+ * @arg nh             Routing nexthop.
+ * @arg addr           New gateway address.
+ *
+ * An eventual existing gateway address will be freed and a
+ * reference is acquried of the new address.
+ */
+void rtnl_route_nh_set_gateway(struct rtnl_nexthop *nh, struct nl_addr *addr)
+{
+       struct nl_addr *old = nh->rtnh_gateway;
+
+       nh->rtnh_gateway = nl_addr_get(addr);
+       if (old)
+               nl_addr_put(old);
+
+       nh->rtnh_mask |= NEXTHOP_HAS_GATEWAY;
+}
+
+/**
+ * Get gateway address of routing nexthop.
+ * @arg nh             Routing nexthop.
+ * @return Gateway address or NULL if not available.
+ */
+struct nl_addr *rtnl_route_nh_get_gateway(struct rtnl_nexthop *nh)
+{
+       if (nh->rtnh_mask & NEXTHOP_HAS_GATEWAY)
+               return nh->rtnh_gateway;
+       else
+               return NULL;
+}
+
+/** @} */
+/**
+ * @name Attribute: Flags
+ * @{
+ */
+
+/**
+ * Set flags of routing nexthop.
+ * @arg nh             Routing nexthop.
+ * @arg flags          Flags to be set.
+ */
+void rtnl_route_nh_set_flags(struct rtnl_nexthop *nh, unsigned int flags)
+{
+       nh->rtnh_flag_mask |= flags;
+       nh->rtnh_flags |= flags;
+       nh->rtnh_mask |= NEXTHOP_HAS_FLAGS;
+}
+
+/**
+ * Unset flags of routing nexthop.
+ * @arg nh             Routing nexthop.
+ * @arg flags          Flags to be unset.
+ */
+void rtnl_route_nh_unset_flags(struct rtnl_nexthop *nh, unsigned int flags)
+{
+       nh->rtnh_flag_mask |= flags;
+       nh->rtnh_flags &= ~flags;
+       nh->rtnh_mask |= NEXTHOP_HAS_FLAGS;
+}
+
+/**
+ * Get flags of routing nexthop.
+ * @arg nh             Routing nexthop.
+ * @return Flags or 0 if not available.
+ */
+unsigned int rtnl_route_nh_get_flags(struct rtnl_nexthop *nh)
+{
+       if (nh->rtnh_mask & NEXTHOP_HAS_FLAGS)
+               return nh->rtnh_flags;
+       else
+               return 0;
+}
+
+/** @} */
+/** @} */