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https://github.com/openvswitch/ovs
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cb25142c50
Add support for building the in-tree kernel datapath for Linux kernels up to 3.13. There were some changes in the netlink area which required adding new compatibility code for this layer. Also, some new per-cpu stats initialization code was added. Based on patch from Kyle Mestery. Signed-off-by: Kyle Mestery <mestery@noironetworks.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Kyle Mestery <mestery@noironetworks.com>
109 lines
3.3 KiB
C
109 lines
3.3 KiB
C
#ifndef __NET_GENERIC_NETLINK_WRAPPER_H
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#define __NET_GENERIC_NETLINK_WRAPPER_H 1
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#include <linux/version.h>
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#include <linux/netlink.h>
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#include <net/net_namespace.h>
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#include_next <net/genetlink.h>
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/*
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* 15e473046cb6e5d18a4d0057e61d76315230382b renames pid to portid
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* the affected structures are
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* netlink_skb_parms::pid -> portid
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* genl_info::snd_pid -> snd_portid
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*/
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0)
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#define snd_portid snd_pid
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#define portid pid
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0)
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struct rpl_genl_family {
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struct genl_family compat_family;
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unsigned int id;
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unsigned int hdrsize;
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char name[GENL_NAMSIZ];
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unsigned int version;
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unsigned int maxattr;
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bool netnsok;
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bool parallel_ops;
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int (*pre_doit)(const struct genl_ops *ops,
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struct sk_buff *skb,
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struct genl_info *info);
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void (*post_doit)(const struct genl_ops *ops,
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struct sk_buff *skb,
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struct genl_info *info);
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struct nlattr ** attrbuf; /* private */
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const struct genl_ops * ops; /* private */
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const struct genl_multicast_group *mcgrps; /* private */
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unsigned int n_ops; /* private */
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unsigned int n_mcgrps; /* private */
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unsigned int mcgrp_offset; /* private */
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struct list_head family_list; /* private */
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struct module *module;
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};
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#define genl_family rpl_genl_family
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#define genl_notify rpl_genl_notify
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void genl_notify(struct genl_family *family,
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struct sk_buff *skb, struct net *net, u32 portid, u32 group,
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struct nlmsghdr *nlh, gfp_t flags);
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static inline void *rpl_genlmsg_put(struct sk_buff *skb, u32 portid, u32 seq,
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struct genl_family *family, int flags, u8 cmd)
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{
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return genlmsg_put(skb, portid, seq, &family->compat_family, flags, cmd);
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}
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#define genlmsg_put rpl_genlmsg_put
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static inline int rpl_genl_unregister_family(struct genl_family *family)
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{
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return genl_unregister_family(&family->compat_family);
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}
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#define genl_unregister_family rpl_genl_unregister_family
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#define genl_set_err rpl_genl_set_err
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static inline int genl_set_err(struct genl_family *family, struct net *net,
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u32 portid, u32 group, int code)
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{
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#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)
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netlink_set_err(net->genl_sock, portid, group, code);
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return 0;
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#else
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return netlink_set_err(net->genl_sock, portid, group, code);
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#endif
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}
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#define genlmsg_multicast_netns rpl_genlmsg_multicast_netns
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static inline int genlmsg_multicast_netns(struct genl_family *family,
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struct net *net, struct sk_buff *skb,
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u32 portid, unsigned int group, gfp_t flags)
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{
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return nlmsg_multicast(net->genl_sock, skb, portid, group, flags);
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}
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#define __genl_register_family rpl___genl_register_family
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int rpl___genl_register_family(struct genl_family *family);
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#define genl_register_family rpl_genl_register_family
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static inline int rpl_genl_register_family(struct genl_family *family)
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{
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family->module = THIS_MODULE;
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return rpl___genl_register_family(family);
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}
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,14,0)
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static inline struct sk_buff *genlmsg_new_unicast(size_t payload,
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struct genl_info *info,
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gfp_t flags)
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{
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return genlmsg_new(payload, flags);
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}
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#endif
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#endif /* genetlink.h */
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