19b42cabeSNuno Antunes /* 29b42cabeSNuno Antunes * Copyright (c) 2007 The DragonFly Project. All rights reserved. 39b42cabeSNuno Antunes * 49b42cabeSNuno Antunes * Redistribution and use in source and binary forms, with or without 59b42cabeSNuno Antunes * modification, are permitted provided that the following conditions 69b42cabeSNuno Antunes * are met: 79b42cabeSNuno Antunes * 89b42cabeSNuno Antunes * 1. Redistributions of source code must retain the above copyright 99b42cabeSNuno Antunes * notice, this list of conditions and the following disclaimer. 109b42cabeSNuno Antunes * 2. Redistributions in binary form must reproduce the above copyright 119b42cabeSNuno Antunes * notice, this list of conditions and the following disclaimer in 129b42cabeSNuno Antunes * the documentation and/or other materials provided with the 139b42cabeSNuno Antunes * distribution. 149b42cabeSNuno Antunes * 3. Neither the name of The DragonFly Project nor the names of its 159b42cabeSNuno Antunes * contributors may be used to endorse or promote products derived 169b42cabeSNuno Antunes * from this software without specific, prior written permission. 179b42cabeSNuno Antunes * 189b42cabeSNuno Antunes * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 199b42cabeSNuno Antunes * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 209b42cabeSNuno Antunes * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 219b42cabeSNuno Antunes * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 229b42cabeSNuno Antunes * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 239b42cabeSNuno Antunes * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 249b42cabeSNuno Antunes * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 259b42cabeSNuno Antunes * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 269b42cabeSNuno Antunes * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 279b42cabeSNuno Antunes * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 289b42cabeSNuno Antunes * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 299b42cabeSNuno Antunes * SUCH DAMAGE. 309b42cabeSNuno Antunes */ 319b42cabeSNuno Antunes 329b42cabeSNuno Antunes #ifndef _NETMPLS_MPLS_H_ 339b42cabeSNuno Antunes #define _NETMPLS_MPLS_H_ 349b42cabeSNuno Antunes 35*4ad7b37aSSascha Wildner #ifndef _KERNEL 369b42cabeSNuno Antunes #include <arpa/inet.h> 37*4ad7b37aSSascha Wildner #endif 389b42cabeSNuno Antunes 399b42cabeSNuno Antunes #include <sys/types.h> 409b42cabeSNuno Antunes 419b42cabeSNuno Antunes typedef u_int32_t mpls_label_t; 429b42cabeSNuno Antunes typedef u_int8_t mpls_exp_t; 439b42cabeSNuno Antunes typedef u_int8_t mpls_s_t; 449b42cabeSNuno Antunes typedef u_int8_t mpls_ttl_t; 459b42cabeSNuno Antunes 469b42cabeSNuno Antunes struct mpls { 479b42cabeSNuno Antunes u_int32_t mpls_shim; 489b42cabeSNuno Antunes }; 499b42cabeSNuno Antunes #define MPLS_LABEL_MASK 0xfffff000 509b42cabeSNuno Antunes #define MPLS_EXP_MASK 0x00000e00 519b42cabeSNuno Antunes #define MPLS_STACK_MASK 0x00000100 529b42cabeSNuno Antunes #define MPLS_TTL_MASK 0x000000ff 539b42cabeSNuno Antunes #define MPLS_LABEL(shim) (((shim) & MPLS_LABEL_MASK) >> 12) 549b42cabeSNuno Antunes #define MPLS_EXP(shim) (((shim) & MPLS_EXP_MASK) >> 9) 559b42cabeSNuno Antunes #define MPLS_STACK(shim) (((shim) & MPLS_STACK_MASK) >> 8) 569b42cabeSNuno Antunes #define MPLS_TTL(shim) ((shim) & MPLS_TTL_MASK) 579b42cabeSNuno Antunes #define MPLS_SET_LABEL(shim, x) \ 589b42cabeSNuno Antunes do { \ 599b42cabeSNuno Antunes shim &= ~MPLS_LABEL_MASK; \ 609b42cabeSNuno Antunes shim |= ((x) << 12) & MPLS_LABEL_MASK; \ 619b42cabeSNuno Antunes } while(0) 629b42cabeSNuno Antunes #define MPLS_SET_EXP(shim, x) \ 639b42cabeSNuno Antunes do { \ 649b42cabeSNuno Antunes shim &= ~MPLS_EXP_MASK; \ 659b42cabeSNuno Antunes shim |= ((x) << 9) & MPLS_EXP_MASK; \ 669b42cabeSNuno Antunes } while(0) 679b42cabeSNuno Antunes #define MPLS_SET_STACK(shim, x) \ 689b42cabeSNuno Antunes do { \ 699b42cabeSNuno Antunes shim &= ~MPLS_STACK_MASK; \ 709b42cabeSNuno Antunes shim |= ((x) << 8) & MPLS_STACK_MASK; \ 719b42cabeSNuno Antunes } while(0) 729b42cabeSNuno Antunes #define MPLS_SET_TTL(shim, x) \ 739b42cabeSNuno Antunes do { \ 749b42cabeSNuno Antunes shim &= ~MPLS_TTL_MASK; \ 759b42cabeSNuno Antunes shim |= (x) & MPLS_TTL_MASK; \ 769b42cabeSNuno Antunes } while(0) 779b42cabeSNuno Antunes 789b42cabeSNuno Antunes struct mpls_addr { 799b42cabeSNuno Antunes mpls_label_t ma_label; 809b42cabeSNuno Antunes }; 819b42cabeSNuno Antunes 829b42cabeSNuno Antunes struct sockaddr_mpls { 839b42cabeSNuno Antunes u_int8_t smpls_len; 849b42cabeSNuno Antunes u_int8_t smpls_family; 859b42cabeSNuno Antunes u_int8_t smpls_op; /* label op. push, pop, swap */ 869b42cabeSNuno Antunes mpls_exp_t smpls_exp; 879b42cabeSNuno Antunes struct mpls_addr smpls_addr; 889b42cabeSNuno Antunes }; 899b42cabeSNuno Antunes #define smpls_label smpls_addr.ma_label 909b42cabeSNuno Antunes 919b42cabeSNuno Antunes #define MPLSLOP_PUSH 1 929b42cabeSNuno Antunes #define MPLSLOP_POP 2 939b42cabeSNuno Antunes #define MPLSLOP_SWAP 3 949b42cabeSNuno Antunes #define MPLSLOP_POPALL 4 959b42cabeSNuno Antunes 969b42cabeSNuno Antunes #define MPLS_MAXLOPS 3 979b42cabeSNuno Antunes 989b42cabeSNuno Antunes /* 999b42cabeSNuno Antunes * Definitions for mpls sysctl operations. 1009b42cabeSNuno Antunes */ 1019b42cabeSNuno Antunes #define CTL_MPLSPROTO_NAMES { \ 1029b42cabeSNuno Antunes { "mpls", CTLTYPE_NODE }, \ 1039b42cabeSNuno Antunes {0, 0} \ 1049b42cabeSNuno Antunes } 1059b42cabeSNuno Antunes 1069b42cabeSNuno Antunes /* 1079b42cabeSNuno Antunes * Names for MPLS sysctl objects. 1089b42cabeSNuno Antunes */ 1099b42cabeSNuno Antunes #define MPLSCTL_FORWARDING 1 1109b42cabeSNuno Antunes 1119b42cabeSNuno Antunes #endif /* _NETMPLS_MPLS_H_ */ 1129b42cabeSNuno Antunes 113