On Sat, Aug 12, 2017 at 11:32:57PM +0800, JingPiao Chen wrote: > On Sat, Aug 12, 2017 at 03:22:24AM +0300, Dmitry V. Levin wrote: > > On Thu, Aug 10, 2017 at 09:03:22AM +0800, JingPiao Chen wrote: > > > Note: > > > > > > rule: > > > Before v2.6.18-284-g14c0b97, rule carry struct rtmsg, > > > now carry struct fib_rule_hdr. > > > > > > $ man 7 rtnetlink # or read the old kernel > > > RTM_NEWRULE, RTM_DELRULE, RTM_GETRULE > > > Add, delete or retrieve a routing rule. Carries a struct rtmsg > > > > > > Read linux kernel source code > > > linux/net/core/fib_rules.c: fib_nl_delrule(), fib_nl_delrule(); > > > know rule carry struct fib_rule_hdr. > > > > struct rtmsg and struct fib_rule_hdr are essentially the same structure, > > iproute2 uses the former. > > You mean that rule header message is struct rtmsg, > and rule netlink attribute are FRA_*?
Like iproute2, you can use struct rtmsg but treat it as struct fib_rule_hdr: ignore rtm_protocol and rtm_scope fields, treat rtmsg.rtm_type as fib_rule_hdr.action, and parse FRA_* attributes. -- ldv
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