+++ /dev/null
-/*
- * lib/fib_lookup/request.c FIB Lookup Request
- *
- * 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 fib_lookup
- * @defgroup flreq Request
- * @brief
- * @{
- */
-
-#include <netlink-local.h>
-#include <netlink/netlink.h>
-#include <netlink/attr.h>
-#include <netlink/utils.h>
-#include <netlink/object.h>
-#include <netlink/fib_lookup/request.h>
-
-/** @cond SKIP */
-#define REQUEST_ATTR_ADDR 0x01
-#define REQUEST_ATTR_FWMARK 0x02
-#define REQUEST_ATTR_TOS 0x04
-#define REQUEST_ATTR_SCOPE 0x08
-#define REQUEST_ATTR_TABLE 0x10
-/** @endcond */
-
-/**
- * @name Lookup Request Creation/Deletion
- * @{
- */
-
-/**
- * Allocate and initialize new lookup request object.
- * @note Free the memory after usage using flnl_request_put() or
- * flnl_request_free().
- * @return Newly allocated lookup request object or NULL if an error occured.
- */
-struct flnl_request *flnl_request_alloc(void)
-{
- struct flnl_request *req;
-
- req = calloc(1, sizeof(*req));
- if (req)
- req->lr_refcnt = 1;
- else
- nl_errno(ENOMEM);
-
- return req;
-}
-
-/**
- * Request undestroyable reference of lookup request object.
- * @arg req Lookup request object.
- * @return Lookup request object of which the reference was given.
- */
-struct flnl_request *flnl_request_get(struct flnl_request *req)
-{
- req->lr_refcnt++;
-
- return req;
-}
-
-/**
- * Give back reference of lookup request object.
- * @arg req Lookup request object to be given back.
- *
- * Decrements the reference counter and destroys the object if the
- * last reference was given back.
- */
-void flnl_request_put(struct flnl_request *req)
-{
- if (!req)
- return;
-
- if (req->lr_refcnt <= 1)
- flnl_request_free(req);
- else
- req->lr_refcnt--;
-}
-
-/**
- * Free lookup request object.
- * @arg req Lookup request object to be freed.
- */
-void flnl_request_free(struct flnl_request *req)
-{
- if (!req)
- return;
-
- if (req->lr_refcnt != 1)
- BUG();
-
- free(req);
-}
-
-/** @} */
-
-/**
- * @name Attribute Access
- * @{
- */
-
-/**
- * Set firewall mark of lookup request object.
- * @arg req Lookup request object.
- * @arg fwmark Firewall mark.
- */
-void flnl_request_set_fwmark(struct flnl_request *req, uint64_t fwmark)
-{
- req->lr_fwmark = fwmark;
- req->lr_mask |= REQUEST_ATTR_FWMARK;
-}
-
-/**
- * Get firewall mark of lookup request object.
- * @arg req Lookup request object.
- * @return Firewall mark or UINT_LEAST64_MAX if not available.
- */
-uint64_t flnl_request_get_fwmark(struct flnl_request *req)
-{
- if (req->lr_mask & REQUEST_ATTR_FWMARK)
- return req->lr_fwmark;
- else
- return UINT_LEAST64_MAX;
-}
-
-/**
- * Set Type of Service of lookup request object.
- * @arg req Lookup request object.
- * @arg tos Type of Service.
- */
-void flnl_request_set_tos(struct flnl_request *req, int tos)
-{
- req->lr_tos = tos;
- req->lr_mask |= REQUEST_ATTR_TOS;
-}
-
-/**
- * Get Type of Service of lookup request object.
- * @arg req Lookup request object.
- * @return Type of Service or -1 if not available.
- */
-int flnl_request_get_tos(struct flnl_request *req)
-{
- if (req->lr_mask & REQUEST_ATTR_TOS)
- return req->lr_tos;
- else
- return -1;
-}
-
-/**
- * Set Scope of lookup request object.
- * @arg req Lookup request oject.
- * @arg scope Routing scope.
- */
-void flnl_request_set_scope(struct flnl_request *req, int scope)
-{
- req->lr_scope = scope;
- req->lr_mask |= REQUEST_ATTR_SCOPE;
-}
-
-/**
- * Get scope of lookup request object.
- * @arg req Lookup request object.
- * @return Scope or -1 if not available.
- */
-int flnl_request_get_scope(struct flnl_request *req)
-{
- if (req->lr_mask & REQUEST_ATTR_SCOPE)
- return req->lr_scope;
- else
- return -1;
-}
-
-/**
- * Set routing table of lookup request object.
- * @arg req Lookup request object.
- * @arg table Routing table.
- */
-void flnl_request_set_table(struct flnl_request *req, int table)
-{
- req->lr_table = table;
- req->lr_mask |= REQUEST_ATTR_TABLE;
-}
-
-/**
- * Get routing table of lookup request object.
- * @arg req Lookup request object.
- * @return Routing table or -1 if not available.
- */
-int flnl_request_get_table(struct flnl_request *req)
-{
- if (req->lr_mask & REQUEST_ATTR_TABLE)
- return req->lr_table;
- else
- return -1;
-}
-
-/**
- * Set destination address of lookup request object.
- * @arg req Lookup request object.
- * @arg addr IPv4 destination address.
- */
-int flnl_request_set_addr(struct flnl_request *req, struct nl_addr *addr)
-{
- if (addr->a_family != AF_INET)
- return nl_error(EINVAL, "Address must be an IPv4 address");
-
- if (req->lr_addr)
- nl_addr_put(req->lr_addr);
-
- nl_addr_get(addr);
- req->lr_addr = addr;
-
- req->lr_mask |= REQUEST_ATTR_ADDR;
-
- return 0;
-}
-
-/**
- * Get destination address of lookup request object.
- * @arg req Lookup request object.
- * @return Destination address or NULL if not available.
- */
-struct nl_addr *flnl_request_get_addr(struct flnl_request *req)
-{
- if (req->lr_mask & REQUEST_ATTR_ADDR)
- return req->lr_addr;
- else
- return NULL;
-}
-
-/** @} */
-
-/**
- * @name Miscellaneous
- * @{
- */
-
-/**
- * Compares two lookup request objects.
- * @arg a Lookup request object.
- * @arg b Another lookup request object.
- *
- * @return Integer less than, equal to or greather than zero if \c is found,
- * respectively to be less than, to, or be greater than \c b.
- */
-int flnl_request_cmp(struct flnl_request *a, struct flnl_request *b)
-{
-#define REQ(F) (a->lr_mask & REQUEST_ATTR_##F)
-#define AVAIL(F) (b->lr_mask & REQUEST_ATTR_##F)
-#define F_CUS(F, EXPR) (REQ(F) && (!AVAIL(F) || (EXPR)))
-#define F_INT(F, N) (REQ(F) && (!AVAIL(F) || (a->N != b->N)))
-
- if (F_INT(FWMARK, lr_fwmark) ||
- F_INT(TOS, lr_tos) ||
- F_INT(SCOPE, lr_scope) ||
- F_INT(TABLE, lr_table) ||
- F_CUS(ADDR, nl_addr_cmp(a->lr_addr, b->lr_addr)))
- return 0;
-#undef REQ
-#undef AVAIL
-#undef F_CUS
-#undef F_INT
- return 1;
-}
-
-/** @} */
-
-/** @} */
git://git.onelab.eu / libnl.git / blobdiff