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libnetlink: Convert GETNEIGH dumps to use rtnl_neighdump_req 

Add rtnl_neighdump_req for neighbor dumps using the proper ndmsg
as the header. Convert existing rtnl_wilddump_request for RTM_GETNEIGH
to use it.

Signed-off-by: David Ahern <dsahern@gmail.com>
This commit is contained in:
David Ahern 2018-09-29 09:42:40 -07:00
parent b05d9a3d58
commit 9e0ab19c4d
3 changed files with 19 additions and 1 deletions
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2
include/libnetlink.h
View File

@ -55,6 +55,8 @@ int rtnl_routedump_req(struct rtnl_handle *rth, int family)
__attribute__((warn_unused_result));
int rtnl_ruledump_req(struct rtnl_handle *rth, int family)
__attribute__((warn_unused_result));
int rtnl_neighdump_req(struct rtnl_handle *rth, int family)
__attribute__((warn_unused_result));
int rtnl_mdbdump_req(struct rtnl_handle *rth, int family)
__attribute__((warn_unused_result));
int rtnl_netconfdump_req(struct rtnl_handle *rth, int family)

16
lib/libnetlink.c
View File

@ -266,6 +266,22 @@ int rtnl_ruledump_req(struct rtnl_handle *rth, int family)
return send(rth->fd, &req, sizeof(req), 0);
}
int rtnl_neighdump_req(struct rtnl_handle *rth, int family)
{
struct {
struct nlmsghdr nlh;
struct ndmsg ndm;
} req = {
.nlh.nlmsg_len = sizeof(req),
.nlh.nlmsg_type = RTM_GETNEIGH,
.nlh.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
.nlh.nlmsg_seq = rth->dump = ++rth->seq,
.ndm.ndm_family = family,
};
return send(rth->fd, &req, sizeof(req), 0);
}
int rtnl_mdbdump_req(struct rtnl_handle *rth, int family)
{
struct {

2
misc/arpd.c
View File

@ -424,7 +424,7 @@ static int do_one_request(struct nlmsghdr *n)
static void load_initial_table(void)
{
if (rtnl_wilddump_request(&rth, AF_INET, RTM_GETNEIGH) < 0) {
if (rtnl_neighdump_req(&rth, AF_INET) < 0) {
perror("dump request failed");
exit(1);
}