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https://gitee.com/openharmony/third_party_libnl
synced 2025-02-20 03:00:49 +00:00
introduce gre tunnel support
This patch introduces gre tunnel support Signed-off-by: Susant Sahani <susant@redhat.com> Acked-by: Thomas Graf <tgraf@suug.ch> [thaller@redhat.com: change WS to TAB, fix code doc] Signed-off-by: Thomas Haller <thaller@redhat.com>
This commit is contained in:
Susant Sahani
Thomas Haller
parent
3a95fad5c9
commit
57bdc4ff48
@ -924,6 +924,85 @@ if((err = rtnl_link_add(sk, link, NLM_F_CREATE)) < 0)
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rtnl_link_put(link);
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-----
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[[link_ipgre]]
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==== IPGRE
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[source,c]
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-----
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extern struct rtnl_link *rtnl_link_ipgre_alloc(void);
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extern int rtnl_link_ipgre_add(struct nl_sock *sk, const char *name);
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extern int rtnl_link_ipgre_set_link(struct rtnl_link *link, uint32_t index);
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extern uint32_t rtnl_link_ipgre_get_link(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_iflags(struct rtnl_link *link, uint16_t iflags);
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extern uint16_t rtnl_link_get_iflags(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_oflags(struct rtnl_link *link, uint16_t oflags);
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extern uint16_t rtnl_link_get_oflags(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_ikey(struct rtnl_link *link, uint32_t ikey);
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extern uint32_t rtnl_link_get_ikey(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_okey(struct rtnl_link *link, uint32_t okey);
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extern uint32_t rtnl_link_get_okey(struct rtnl_link *link)
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extern int rtnl_link_ipgre_set_local(struct rtnl_link *link, uint32_t addr);
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extern uint32_t rtnl_link_ipgre_get_local(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_remote(struct rtnl_link *link, uint32_t addr);
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extern uint32_t rtnl_link_ipgre_get_remote(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_ttl(struct rtnl_link *link, uint8_t ttl);
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extern uint8_t rtnl_link_ipgre_get_ttl(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_tos(struct rtnl_link *link, uint8_t tos);
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extern uint8_t rtnl_link_ipgre_get_tos(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_pmtudisc(struct rtnl_link *link, uint8_t pmtudisc);
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extern uint8_t rtnl_link_ipgre_get_pmtudisc(struct rtnl_link *link);
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-----
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.Example: Add a ipgre tunnel device
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[source,c]
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-----
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struct rtnl_link *link
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struct in_addr addr
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/* allocate new link object of type vxlan */
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if(!(link = rtnl_link_ipgre_alloc()))
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/* error */
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/* set ipgre tunnel name */
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if ((err = rtnl_link_set_name(link, "ipgre-tun")) < 0)
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/* error */
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/* set link index */
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if ((err = rtnl_link_ipgre_set_link(link, if_index)) < 0)
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/* error */
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/* set local address */
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inet_pton(AF_INET, "192.168.254.12", &addr.s_addr);
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if ((err = rtnl_link_ipgre_set_local(link, addr.s_addr)) < 0)
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/* error */
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/* set remote address */
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inet_pton(AF_INET, "192.168.254.13", &addr.s_addr
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if ((err = rtnl_link_ipgre_set_remote(link, addr.s_addr)) < 0)
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/* error */
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/* set tunnel ttl */
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if ((err = rtnl_link_ipgre_set_ttl(link, 64)) < 0)
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/* error */
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if((err = rtnl_link_add(sk, link, NLM_F_CREATE)) < 0)
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/* error */
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rtnl_link_put(link);
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-----
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== Neighbouring
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== Routing
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@ -53,6 +53,7 @@ nobase_libnlinclude_HEADERS = \
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netlink/route/link/vlan.h \
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netlink/route/link/vxlan.h \
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netlink/route/link/veth.h \
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netlink/route/link/ipgre.h \
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netlink/route/link/ipip.h \
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netlink/route/qdisc/cbq.h \
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netlink/route/qdisc/dsmark.h \
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59
include/netlink/route/link/ipgre.h
Normal file
59
include/netlink/route/link/ipgre.h
Normal file
@ -0,0 +1,59 @@
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/*
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* netlink/route/link/ip_gre.h IPIP interface
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* Copyright (c) 2014 Susant Sahani <susant@redhat.com>
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*/
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#ifndef NETLINK_LINK_IPGRE_H_
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#define NETLINK_LINK_IPGRE_H_
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#include <netlink/netlink.h>
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#include <netlink/route/link.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern struct rtnl_link *rtnl_link_ipgre_alloc(void);
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extern int rtnl_link_ipgre_add(struct nl_sock *sk, const char *name);
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extern int rtnl_link_ipgre_set_link(struct rtnl_link *link, uint32_t index);
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extern uint32_t rtnl_link_ipgre_get_link(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_iflags(struct rtnl_link *link, uint16_t iflags);
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extern uint16_t rtnl_link_get_iflags(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_oflags(struct rtnl_link *link, uint16_t oflags);
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extern uint16_t rtnl_link_get_oflags(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_ikey(struct rtnl_link *link, uint32_t ikey);
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extern uint32_t rtnl_link_get_ikey(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_okey(struct rtnl_link *link, uint32_t okey);
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extern uint32_t rtnl_link_get_okey(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_local(struct rtnl_link *link, uint32_t addr);
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extern uint32_t rtnl_link_get_local(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_remote(struct rtnl_link *link, uint32_t addr);
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extern uint32_t rtnl_link_get_remote(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_ttl(struct rtnl_link *link, uint8_t ttl);
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extern uint8_t rtnl_link_get_ttl(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_tos(struct rtnl_link *link, uint8_t tos);
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extern uint8_t rtnl_link_get_tos(struct rtnl_link *link);
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extern int rtnl_link_ipgre_set_pmtudisc(struct rtnl_link *link, uint8_t pmtudisc);
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extern uint8_t rtnl_link_get_pmtudisc(struct rtnl_link *link);
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#ifdef __cplusplus
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}
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#endif
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#endif
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@ -79,6 +79,7 @@ libnl_route_3_la_SOURCES = \
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route/link/bridge.c route/link/inet6.c route/link/inet.c \
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route/link/bonding.c route/link/can.c route/link/macvlan.c \
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route/link/vxlan.c route/link/veth.c route/link/ipip.c \
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route/link/ipgre.c \
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\
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route/qdisc/blackhole.c route/qdisc/cbq.c route/qdisc/dsmark.c \
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route/qdisc/fifo.c route/qdisc/htb.c route/qdisc/netem.c \
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727
lib/route/link/ipgre.c
Normal file
727
lib/route/link/ipgre.c
Normal file
@ -0,0 +1,727 @@
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/*
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* lib/route/link/ipgre.c IPGRE Link Info
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* Copyright (c) 2014 Susant Sahani <susant@redhat.com>
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*/
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/**
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* @ingroup link
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* @defgroup ipgre IPGRE
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* ipgre link module
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*
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* @details
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* \b Link Type Name: "ipgre"
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*
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* @route_doc{link_ipgre, IPGRE Documentation}
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*
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* @{
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*/
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#include <netlink-private/netlink.h>
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#include <netlink/netlink.h>
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#include <netlink/attr.h>
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#include <netlink/utils.h>
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#include <netlink/object.h>
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#include <netlink/route/rtnl.h>
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#include <netlink-private/route/link/api.h>
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#include <linux/if_tunnel.h>
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#define IPGRE_ATTR_LINK (1 << 0)
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#define IPGRE_ATTR_IFLAGS (1 << 1)
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#define IPGRE_ATTR_OFLAGS (1 << 2)
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#define IPGRE_ATTR_IKEY (1 << 3)
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#define IPGRE_ATTR_OKEY (1 << 4)
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#define IPGRE_ATTR_LOCAL (1 << 5)
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#define IPGRE_ATTR_REMOTE (1 << 6)
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#define IPGRE_ATTR_TTL (1 << 7)
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#define IPGRE_ATTR_TOS (1 << 8)
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#define IPGRE_ATTR_PMTUDISC (1 << 9)
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struct ipgre_info
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{
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uint8_t ttl;
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uint8_t tos;
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uint8_t pmtudisc;
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uint16_t iflags;
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uint16_t oflags;
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uint32_t ikey;
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uint32_t okey;
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uint32_t link;
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uint32_t local;
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uint32_t remote;
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uint32_t ipgre_mask;
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};
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static struct nla_policy ipgre_policy[IFLA_GRE_MAX + 1] = {
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[IFLA_GRE_LINK] = { .type = NLA_U32 },
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[IFLA_GRE_IFLAGS] = { .type = NLA_U16 },
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[IFLA_GRE_OFLAGS] = { .type = NLA_U16 },
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[IFLA_GRE_IKEY] = { .type = NLA_U32 },
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[IFLA_GRE_OKEY] = { .type = NLA_U32 },
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[IFLA_GRE_LOCAL] = { .type = NLA_U32 },
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[IFLA_GRE_REMOTE] = { .type = NLA_U32 },
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[IFLA_GRE_TTL] = { .type = NLA_U8 },
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[IFLA_GRE_TOS] = { .type = NLA_U8 },
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[IFLA_GRE_PMTUDISC] = { .type = NLA_U8 },
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};
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static int ipgre_alloc(struct rtnl_link *link)
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{
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struct ipgre_info *ipgre;
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ipgre = calloc(1, sizeof(*ipgre));
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if (!ipgre)
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return -NLE_NOMEM;
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link->l_info = ipgre;
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return 0;
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}
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static int ipgre_parse(struct rtnl_link *link, struct nlattr *data,
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struct nlattr *xstats)
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{
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struct nlattr *tb[IFLA_IPTUN_MAX + 1];
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struct ipgre_info *ipgre;
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int err;
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NL_DBG(3, "Parsing IPGRE link info");
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err = nla_parse_nested(tb, IFLA_GRE_MAX, data, ipgre_policy);
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if (err < 0)
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goto errout;
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err = ipgre_alloc(link);
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if (err < 0)
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goto errout;
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ipgre = link->l_info;
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if (tb[IFLA_GRE_LINK]) {
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ipgre->link = nla_get_u32(tb[IFLA_GRE_LINK]);
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ipgre->ipgre_mask |= IPGRE_ATTR_LINK;
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}
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if (tb[IFLA_GRE_IFLAGS]) {
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ipgre->iflags = nla_get_u16(tb[IFLA_GRE_IFLAGS]);
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ipgre->ipgre_mask |= IPGRE_ATTR_IFLAGS;
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}
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if (tb[IFLA_GRE_OFLAGS]) {
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ipgre->oflags = nla_get_u16(tb[IFLA_GRE_OFLAGS]);
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ipgre->ipgre_mask |= IPGRE_ATTR_OFLAGS;
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}
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if (tb[IFLA_GRE_IKEY]) {
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ipgre->ikey = nla_get_u32(tb[IFLA_GRE_IKEY]);
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ipgre->ipgre_mask |= IPGRE_ATTR_IKEY;
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}
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if (tb[IFLA_GRE_OKEY]) {
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ipgre->okey = nla_get_u32(tb[IFLA_GRE_OKEY]);
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ipgre->ipgre_mask |= IPGRE_ATTR_OKEY;
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}
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if (tb[IFLA_GRE_LOCAL]) {
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ipgre->local = nla_get_u32(tb[IFLA_GRE_LOCAL]);
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ipgre->ipgre_mask |= IPGRE_ATTR_LOCAL;
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}
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if (tb[IFLA_GRE_LOCAL]) {
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ipgre->remote = nla_get_u32(tb[IFLA_GRE_LOCAL]);
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ipgre->ipgre_mask |= IPGRE_ATTR_REMOTE;
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}
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if (tb[IFLA_GRE_TTL]) {
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ipgre->ttl = nla_get_u8(tb[IFLA_GRE_TTL]);
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ipgre->ipgre_mask |= IPGRE_ATTR_TTL;
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}
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if (tb[IFLA_GRE_TOS]) {
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ipgre->tos = nla_get_u8(tb[IFLA_GRE_TOS]);
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ipgre->ipgre_mask |= IPGRE_ATTR_TOS;
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}
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if (tb[IFLA_GRE_PMTUDISC]) {
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ipgre->pmtudisc = nla_get_u8(tb[IFLA_GRE_PMTUDISC]);
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ipgre->ipgre_mask |= IPGRE_ATTR_PMTUDISC;
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}
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err = 0;
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errout:
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return err;
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}
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static int ipgre_put_attrs(struct nl_msg *msg, struct rtnl_link *link)
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{
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struct ipgre_info *ipgre = link->l_info;
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struct nlattr *data;
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data = nla_nest_start(msg, IFLA_INFO_DATA);
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if (!data)
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return -NLE_MSGSIZE;
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if (ipgre->ipgre_mask & IPGRE_ATTR_LINK)
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NLA_PUT_U32(msg, IFLA_GRE_LINK, ipgre->link);
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if (ipgre->ipgre_mask & IFLA_GRE_IFLAGS)
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NLA_PUT_U16(msg, IFLA_GRE_IFLAGS, ipgre->iflags);
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if (ipgre->ipgre_mask & IFLA_GRE_OFLAGS)
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NLA_PUT_U16(msg, IFLA_GRE_OFLAGS, ipgre->oflags);
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if (ipgre->ipgre_mask & IPGRE_ATTR_IKEY)
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NLA_PUT_U32(msg, IFLA_GRE_IKEY, ipgre->ikey);
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if (ipgre->ipgre_mask & IFLA_GRE_OKEY)
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NLA_PUT_U32(msg, IFLA_GRE_OKEY, ipgre->okey);
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if (ipgre->ipgre_mask & IPGRE_ATTR_LOCAL)
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NLA_PUT_U32(msg, IFLA_GRE_LOCAL, ipgre->local);
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if (ipgre->ipgre_mask & IPGRE_ATTR_REMOTE)
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NLA_PUT_U32(msg, IFLA_GRE_REMOTE, ipgre->remote);
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if (ipgre->ipgre_mask & IPGRE_ATTR_TTL)
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NLA_PUT_U8(msg, IFLA_GRE_TTL, ipgre->ttl);
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if (ipgre->ipgre_mask & IPGRE_ATTR_TOS)
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NLA_PUT_U8(msg, IFLA_GRE_TOS, ipgre->tos);
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if (ipgre->ipgre_mask & IPGRE_ATTR_PMTUDISC)
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NLA_PUT_U8(msg, IFLA_GRE_PMTUDISC, ipgre->pmtudisc);
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nla_nest_end(msg, data);
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nla_put_failure:
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return 0;
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}
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static void ipgre_free(struct rtnl_link *link)
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{
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struct ipgre_info *ipgre = link->l_info;
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free(ipgre);
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link->l_info = NULL;
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}
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static void ipgre_dump_line(struct rtnl_link *link, struct nl_dump_params *p)
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{
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nl_dump(p, "ipgre : %s", link->l_name);
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}
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static void ipgre_dump_details(struct rtnl_link *link, struct nl_dump_params *p)
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{
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struct ipgre_info *ipgre = link->l_info;
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char *name, addr[INET_ADDRSTRLEN];
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if (ipgre->ipgre_mask & IPGRE_ATTR_LINK) {
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nl_dump(p, " link ");
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name = rtnl_link_get_name(link);
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if (name)
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nl_dump_line(p, "%s\n", name);
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else
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nl_dump_line(p, "%u\n", ipgre->link);
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}
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if (ipgre->ipgre_mask & IPGRE_ATTR_IFLAGS) {
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nl_dump(p, " iflags ");
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nl_dump_line(p, "%x\n", ipgre->iflags);
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}
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if (ipgre->ipgre_mask & IPGRE_ATTR_OFLAGS) {
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nl_dump(p, " oflags ");
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nl_dump_line(p, "%x\n", ipgre->oflags);
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}
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if (ipgre->ipgre_mask & IPGRE_ATTR_IKEY) {
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nl_dump(p, " ikey ");
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nl_dump_line(p, "%x\n",ipgre->ikey);
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}
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if (ipgre->ipgre_mask & IPGRE_ATTR_OKEY) {
|
||||
nl_dump(p, " okey ");
|
||||
nl_dump_line(p, "%x\n", ipgre->okey);
|
||||
}
|
||||
|
||||
if (ipgre->ipgre_mask & IPGRE_ATTR_LOCAL) {
|
||||
nl_dump(p, " local ");
|
||||
if(inet_ntop(AF_INET, &ipgre->local, addr, sizeof(addr)))
|
||||
nl_dump_line(p, "%s\n", addr);
|
||||
else
|
||||
nl_dump_line(p, "%#x\n", ntohs(ipgre->local));
|
||||
}
|
||||
|
||||
if (ipgre->ipgre_mask & IPGRE_ATTR_REMOTE) {
|
||||
nl_dump(p, " remote ");
|
||||
if(inet_ntop(AF_INET, &ipgre->remote, addr, sizeof(addr)))
|
||||
nl_dump_line(p, "%s\n", addr);
|
||||
else
|
||||
nl_dump_line(p, "%#x\n", ntohs(ipgre->remote));
|
||||
}
|
||||
|
||||
if (ipgre->ipgre_mask & IPGRE_ATTR_TTL) {
|
||||
nl_dump(p, " ttl ");
|
||||
nl_dump_line(p, "%u\n", ipgre->ttl);
|
||||
}
|
||||
|
||||
if (ipgre->ipgre_mask & IPGRE_ATTR_TOS) {
|
||||
nl_dump(p, " tos ");
|
||||
nl_dump_line(p, "%u\n", ipgre->tos);
|
||||
}
|
||||
|
||||
if (ipgre->ipgre_mask & IPGRE_ATTR_PMTUDISC) {
|
||||
nl_dump(p, " pmtudisc ");
|
||||
nl_dump_line(p, "enabled (%#x)\n", ipgre->pmtudisc);
|
||||
}
|
||||
}
|
||||
|
||||
static int ipgre_clone(struct rtnl_link *dst, struct rtnl_link *src)
|
||||
{
|
||||
struct ipgre_info *ipgre_dst, *ipgre_src = src->l_info;
|
||||
int err;
|
||||
|
||||
dst->l_info = NULL;
|
||||
|
||||
err = rtnl_link_set_type(dst, "gre");
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
ipgre_dst = dst->l_info;
|
||||
|
||||
if (!ipgre_dst || !ipgre_src)
|
||||
BUG();
|
||||
|
||||
memcpy(ipgre_dst, ipgre_src, sizeof(struct ipgre_info));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct rtnl_link_info_ops ipgre_info_ops = {
|
||||
.io_name = "gre",
|
||||
.io_alloc = ipgre_alloc,
|
||||
.io_parse = ipgre_parse,
|
||||
.io_dump = {
|
||||
[NL_DUMP_LINE] = ipgre_dump_line,
|
||||
[NL_DUMP_DETAILS] = ipgre_dump_details,
|
||||
},
|
||||
.io_clone = ipgre_clone,
|
||||
.io_put_attrs = ipgre_put_attrs,
|
||||
.io_free = ipgre_free,
|
||||
};
|
||||
|
||||
#define IS_IPGRE_LINK_ASSERT(link) \
|
||||
if ((link)->l_info_ops != &ipgre_info_ops) { \
|
||||
APPBUG("Link is not a ipgre link. set type \"gre\" first.");\
|
||||
return -NLE_OPNOTSUPP; \
|
||||
}
|
||||
|
||||
struct rtnl_link *rtnl_link_ipgre_alloc(void)
|
||||
{
|
||||
struct rtnl_link *link;
|
||||
int err;
|
||||
|
||||
link = rtnl_link_alloc();
|
||||
if (!link)
|
||||
return NULL;
|
||||
|
||||
err = rtnl_link_set_type(link, "gre");
|
||||
if (err < 0) {
|
||||
rtnl_link_put(link);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return link;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if link is a IPGRE link
|
||||
* @arg link Link object
|
||||
*
|
||||
* @return True if link is a IPGRE link, otherwise 0 is returned.
|
||||
*/
|
||||
int rtnl_link_is_ipgre(struct rtnl_link *link)
|
||||
{
|
||||
return link->l_info_ops && !strcmp(link->l_info_ops->io_name, "gre");
|
||||
}
|
||||
/**
|
||||
* Create a new ipip tunnel device
|
||||
* @arg sock netlink socket
|
||||
* @arg name name of the tunnel deviceL
|
||||
*
|
||||
* Creates a new ipip tunnel device in the kernel
|
||||
* @return 0 on success or a negative error code
|
||||
*/
|
||||
int rtnl_link_ipgre_add(struct nl_sock *sk, const char *name)
|
||||
{
|
||||
struct rtnl_link *link;
|
||||
int err;
|
||||
|
||||
link = rtnl_link_ipgre_alloc();
|
||||
if (!link)
|
||||
return -NLE_NOMEM;
|
||||
|
||||
if(name)
|
||||
rtnl_link_set_name(link, name);
|
||||
|
||||
err = rtnl_link_add(sk, link, NLM_F_CREATE);
|
||||
rtnl_link_put(link);
|
||||
|
||||
return err;
|
||||
}
|
||||
/**
|
||||
* Set IPGRE tunnel interface index
|
||||
* @arg link Link object
|
||||
* @arg index interface index
|
||||
*
|
||||
* @return 0 on success or a negative error code
|
||||
*/
|
||||
int rtnl_link_ipgre_set_link(struct rtnl_link *link, uint32_t index)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
ipgre->link = index;
|
||||
ipgre->ipgre_mask |= IPGRE_ATTR_LINK;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get IPGRE tunnel interface index
|
||||
* @arg link Link object
|
||||
*
|
||||
* @return interface index
|
||||
*/
|
||||
uint32_t rtnl_link_ipgre_get_link(struct rtnl_link *link)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
return ipgre->link;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set IPGRE tunnel set iflags
|
||||
* @arg link Link object
|
||||
* @arg iflags gre iflags
|
||||
*
|
||||
* @return 0 on success or a negative error code
|
||||
*/
|
||||
int rtnl_link_ipgre_set_iflags(struct rtnl_link *link, uint16_t iflags)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
ipgre->iflags = iflags;
|
||||
ipgre->ipgre_mask |= IPGRE_ATTR_IFLAGS;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get IPGRE tunnel iflags
|
||||
* @arg link Link object
|
||||
*
|
||||
* @return iflags
|
||||
*/
|
||||
uint16_t rtnl_link_get_iflags(struct rtnl_link *link)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
return ipgre->iflags;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set IPGRE tunnel set oflags
|
||||
* @arg link Link object
|
||||
* @arg iflags gre oflags
|
||||
*
|
||||
* @return 0 on success or a negative error code
|
||||
*/
|
||||
int rtnl_link_ipgre_set_oflags(struct rtnl_link *link, uint16_t oflags)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
ipgre->oflags = oflags;
|
||||
ipgre->ipgre_mask |= IPGRE_ATTR_OFLAGS;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get IPGRE tunnel oflags
|
||||
* @arg link Link object
|
||||
*
|
||||
* @return oflags
|
||||
*/
|
||||
uint16_t rtnl_link_get_oflags(struct rtnl_link *link)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
return ipgre->oflags;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set IPGRE tunnel set ikey
|
||||
* @arg link Link object
|
||||
* @arg ikey gre ikey
|
||||
*
|
||||
* @return 0 on success or a negative error code
|
||||
*/
|
||||
int rtnl_link_ipgre_set_ikey(struct rtnl_link *link, uint32_t ikey)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
ipgre->ikey = ikey;
|
||||
ipgre->ipgre_mask |= IPGRE_ATTR_IKEY;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get IPGRE tunnel ikey
|
||||
* @arg link Link object
|
||||
*
|
||||
* @return ikey
|
||||
*/
|
||||
uint32_t rtnl_link_get_ikey(struct rtnl_link *link)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
return ipgre->ikey;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set IPGRE tunnel set okey
|
||||
* @arg link Link object
|
||||
* @arg okey gre okey
|
||||
*
|
||||
* @return 0 on success or a negative error code
|
||||
*/
|
||||
int rtnl_link_ipgre_set_okey(struct rtnl_link *link, uint32_t okey)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
ipgre->okey = okey;
|
||||
ipgre->ipgre_mask |= IPGRE_ATTR_OKEY;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get IPGRE tunnel okey
|
||||
* @arg link Link object
|
||||
*
|
||||
* @return okey value
|
||||
*/
|
||||
uint32_t rtnl_link_get_okey(struct rtnl_link *link)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
return ipgre->okey;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set IPGRE tunnel local address
|
||||
* @arg link Link object
|
||||
* @arg addr local address
|
||||
*
|
||||
* @return 0 on success or a negative error code
|
||||
*/
|
||||
int rtnl_link_ipgre_set_local(struct rtnl_link *link, uint32_t addr)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
ipgre->local = addr;
|
||||
ipgre->ipgre_mask |= IPGRE_ATTR_LOCAL;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get IPGRE tunnel local address
|
||||
* @arg link Link object
|
||||
*
|
||||
* @return local address
|
||||
*/
|
||||
uint32_t rtnl_link_get_local(struct rtnl_link *link)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
return ipgre->local;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set IPGRE tunnel remote address
|
||||
* @arg link Link object
|
||||
* @arg remote remote address
|
||||
*
|
||||
* @return 0 on success or a negative error code
|
||||
*/
|
||||
int rtnl_link_ipgre_set_remote(struct rtnl_link *link, uint32_t remote)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
ipgre->remote = remote;
|
||||
ipgre->ipgre_mask |= IPGRE_ATTR_REMOTE;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get IPGRE tunnel remote address
|
||||
* @arg link Link object
|
||||
*
|
||||
* @return remote address on success or a negative error code
|
||||
*/
|
||||
uint32_t rtnl_link_get_remote(struct rtnl_link *link)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
return ipgre->remote;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set IPGRE tunnel ttl
|
||||
* @arg link Link object
|
||||
* @arg ttl tunnel ttl
|
||||
*
|
||||
* @return 0 on success or a negative error code
|
||||
*/
|
||||
int rtnl_link_ipgre_set_ttl(struct rtnl_link *link, uint8_t ttl)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
ipgre->ttl = ttl;
|
||||
ipgre->ipgre_mask |= IPGRE_ATTR_TTL;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set IPGRE tunnel ttl
|
||||
* @arg link Link object
|
||||
*
|
||||
* @return ttl value
|
||||
*/
|
||||
uint8_t rtnl_link_get_ttl(struct rtnl_link *link)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
return ipgre->ttl;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set IPGRE tunnel tos
|
||||
* @arg link Link object
|
||||
* @arg tos tunnel tos
|
||||
*
|
||||
* @return 0 on success or a negative error code
|
||||
*/
|
||||
int rtnl_link_ipgre_set_tos(struct rtnl_link *link, uint8_t tos)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
ipgre->tos = tos;
|
||||
ipgre->ipgre_mask |= IPGRE_ATTR_TOS;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get IPGRE tunnel tos
|
||||
* @arg link Link object
|
||||
*
|
||||
* @return tos value
|
||||
*/
|
||||
uint8_t rtnl_link_get_tos(struct rtnl_link *link)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
return ipgre->tos;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set IPGRE tunnel path MTU discovery
|
||||
* @arg link Link object
|
||||
* @arg pmtudisc path MTU discovery
|
||||
*
|
||||
* @return 0 on success or a negative error code
|
||||
*/
|
||||
int rtnl_link_ipgre_set_pmtudisc(struct rtnl_link *link, uint8_t pmtudisc)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
ipgre->pmtudisc = pmtudisc;
|
||||
ipgre->ipgre_mask |= IPGRE_ATTR_PMTUDISC;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get IPGRE path MTU discovery
|
||||
* @arg link Link object
|
||||
*
|
||||
* @return pmtudisc value
|
||||
*/
|
||||
uint8_t rtnl_link_get_pmtudisc(struct rtnl_link *link)
|
||||
{
|
||||
struct ipgre_info *ipgre = link->l_info;
|
||||
|
||||
IS_IPGRE_LINK_ASSERT(link);
|
||||
|
||||
return ipgre->pmtudisc;
|
||||
}
|
||||
|
||||
static void __init ipgre_init(void)
|
||||
{
|
||||
rtnl_link_register_info(&ipgre_info_ops);
|
||||
}
|
||||
|
||||
static void __exit ipgre_exit(void)
|
||||
{
|
||||
rtnl_link_unregister_info(&ipgre_info_ops);
|
||||
}
|
||||
1
tests/.gitignore
vendored
1
tests/.gitignore
vendored
@ -7,6 +7,7 @@
|
||||
/test-complex-HTB-with-hash-filters
|
||||
/test-create-bond
|
||||
/test-create-bridge
|
||||
/test-create-ipgre
|
||||
/test-create-ipip
|
||||
/test-create-veth
|
||||
/test-create-vlan
|
||||
|
||||
@ -24,6 +24,7 @@ check_PROGRAMS = \
|
||||
test-create-vxlan \
|
||||
test-create-veth \
|
||||
test-create-bridge \
|
||||
test-create-ipgre \
|
||||
test-create-ipip \
|
||||
test-delete-link \
|
||||
test-socket-creation \
|
||||
|
||||
56
tests/test-create-ipgre.c
Normal file
56
tests/test-create-ipgre.c
Normal file
@ -0,0 +1,56 @@
|
||||
#include <netlink/route/link/ipgre.h>
|
||||
#include <netlink-private/netlink.h>
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
struct nl_cache *link_cache;
|
||||
struct rtnl_link *link;
|
||||
struct in_addr addr;
|
||||
struct nl_sock *sk;
|
||||
int err, if_index;
|
||||
|
||||
sk = nl_socket_alloc();
|
||||
if ((err = nl_connect(sk, NETLINK_ROUTE)) < 0) {
|
||||
nl_perror(err, "Unable to connect socket");
|
||||
return err;
|
||||
}
|
||||
|
||||
err = rtnl_link_alloc_cache(sk, AF_UNSPEC, &link_cache);
|
||||
if ( err < 0) {
|
||||
nl_perror(err, "Unable to allocate cache");
|
||||
return err;
|
||||
}
|
||||
|
||||
if_index = rtnl_link_name2i(link_cache, "eno16777736");
|
||||
if (!if_index) {
|
||||
fprintf(stderr, "Unable to lookup eno16777736");
|
||||
return -1;
|
||||
}
|
||||
|
||||
link = rtnl_link_ipgre_alloc();
|
||||
if(!link) {
|
||||
nl_perror(err, "Unable to allocate link");
|
||||
return -1;
|
||||
|
||||
}
|
||||
rtnl_link_set_name(link, "ipgre-tun");
|
||||
rtnl_link_ipgre_set_link(link, if_index);
|
||||
|
||||
inet_pton(AF_INET, "192.168.254.12", &addr.s_addr);
|
||||
rtnl_link_ipgre_set_local(link, addr.s_addr);
|
||||
|
||||
inet_pton(AF_INET, "192.168.254.13", &addr.s_addr);
|
||||
rtnl_link_ipgre_set_remote(link, addr.s_addr);
|
||||
|
||||
rtnl_link_ipgre_set_ttl(link, 64);
|
||||
err = rtnl_link_add(sk, link, NLM_F_CREATE);
|
||||
if (err < 0) {
|
||||
nl_perror(err, "Unable to add link");
|
||||
return err;
|
||||
}
|
||||
|
||||
rtnl_link_put(link);
|
||||
nl_close(sk);
|
||||
|
||||
return 0;
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user