4e902c5741
Introduces struct fib_config replacing the ugly struct kern_rta prone to ordering issues. Avoids creating faked netlink messages for auto generated routes or requests via ioctl. A new interface net/nexthop.h is added to help navigate through nexthop configuration arrays. A new struct nl_info will be used to carry the necessary netlink information to be used for notifications later on. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
33 lines
821 B
C
33 lines
821 B
C
#ifndef __NET_NEXTHOP_H
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#define __NET_NEXTHOP_H
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#include <linux/rtnetlink.h>
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#include <net/netlink.h>
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static inline int rtnh_ok(const struct rtnexthop *rtnh, int remaining)
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{
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return remaining >= sizeof(*rtnh) &&
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rtnh->rtnh_len >= sizeof(*rtnh) &&
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rtnh->rtnh_len <= remaining;
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}
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static inline struct rtnexthop *rtnh_next(const struct rtnexthop *rtnh,
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int *remaining)
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{
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int totlen = NLA_ALIGN(rtnh->rtnh_len);
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*remaining -= totlen;
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return (struct rtnexthop *) ((char *) rtnh + totlen);
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}
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static inline struct nlattr *rtnh_attrs(const struct rtnexthop *rtnh)
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{
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return (struct nlattr *) ((char *) rtnh + NLA_ALIGN(sizeof(*rtnh)));
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}
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static inline int rtnh_attrlen(const struct rtnexthop *rtnh)
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{
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return rtnh->rtnh_len - NLA_ALIGN(sizeof(*rtnh));
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}
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#endif
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