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97d8d05a81
Add accessors for pw attributes; init pw attributes; replace 'hook' calls for pw install/uninstall with dplane apis. Signed-off-by: Mark Stapp <mjs@voltanet.io>
88 lines
2.3 KiB
C
88 lines
2.3 KiB
C
/* MPLS forwarding table updates using netlink over GNU/Linux system.
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* Copyright (C) 2016 Cumulus Networks, Inc.
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*
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* This file is part of Quagga.
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*
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* Quagga is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* Quagga is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <zebra.h>
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#ifdef HAVE_NETLINK
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#include "zebra/debug.h"
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#include "zebra/rt.h"
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#include "zebra/rt_netlink.h"
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#include "zebra/zebra_mpls.h"
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/*
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* LSP forwarding update using dataplane context information.
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*/
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enum zebra_dplane_result kernel_lsp_update(struct zebra_dplane_ctx *ctx)
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{
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int cmd, ret = -1;
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/* Call to netlink layer based on type of update */
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if (dplane_ctx_get_op(ctx) == DPLANE_OP_LSP_DELETE) {
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cmd = RTM_DELROUTE;
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} else if (dplane_ctx_get_op(ctx) == DPLANE_OP_LSP_INSTALL ||
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dplane_ctx_get_op(ctx) == DPLANE_OP_LSP_UPDATE) {
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/* Validate */
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if (dplane_ctx_get_best_nhlfe(ctx) == NULL) {
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if (IS_ZEBRA_DEBUG_KERNEL || IS_ZEBRA_DEBUG_MPLS)
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zlog_debug("LSP in-label %u: update fails, no best NHLFE",
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dplane_ctx_get_in_label(ctx));
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goto done;
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}
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cmd = RTM_NEWROUTE;
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} else
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/* Invalid op? */
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goto done;
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ret = netlink_mpls_multipath(cmd, ctx);
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done:
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return (ret == 0 ?
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ZEBRA_DPLANE_REQUEST_SUCCESS : ZEBRA_DPLANE_REQUEST_FAILURE);
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}
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/*
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* Pseudowire update api - not supported by netlink as of 12/18,
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* but note that the default has been to report 'success' for pw updates
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* on unsupported platforms.
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*/
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enum zebra_dplane_result kernel_pw_update(struct zebra_dplane_ctx *ctx)
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{
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return ZEBRA_DPLANE_REQUEST_SUCCESS;
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}
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int mpls_kernel_init(void)
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{
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struct stat st;
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/*
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* Check if the MPLS module is loaded in the kernel.
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*/
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if (stat("/proc/sys/net/mpls", &st) != 0)
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return -1;
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return 0;
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};
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#endif /* HAVE_NETLINK */
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