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net: ping6: support setting socket options via cmsg 

Minor reordering of the code and a call to sock_cmsg_send()
gives us support for setting the common socket options via
cmsg (the usual ones - SO_MARK, SO_TIMESTAMPING_OLD, SCM_TXTIME).

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2022-02-09 16:36:41 -08:00 committed by David S. Miller
parent e7b060460f
commit 3ebb0b1032
1 changed files with 9 additions and 4 deletions
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13
net/ipv6/ping.c
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@ -97,6 +97,14 @@ static int ping_v6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
(oif && sk->sk_bound_dev_if && oif != sk->sk_bound_dev_if))
return -EINVAL;
ipcm6_init_sk(&ipc6, np);
ipc6.sockc.tsflags = sk->sk_tsflags;
ipc6.sockc.mark = sk->sk_mark;
err = sock_cmsg_send(sk, msg, &ipc6.sockc);
if (err)
return err;
/* TODO: use ip6_datagram_send_ctl to get options from cmsg */
memset(&fl6, 0, sizeof(fl6));
@ -105,15 +113,12 @@ static int ping_v6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
fl6.saddr = np->saddr;
fl6.daddr = *daddr;
fl6.flowi6_oif = oif;
fl6.flowi6_mark = sk->sk_mark;
fl6.flowi6_mark = ipc6.sockc.mark;
fl6.flowi6_uid = sk->sk_uid;
fl6.fl6_icmp_type = user_icmph.icmp6_type;
fl6.fl6_icmp_code = user_icmph.icmp6_code;
security_sk_classify_flow(sk, flowi6_to_flowi_common(&fl6));
ipcm6_init_sk(&ipc6, np);
ipc6.sockc.mark = sk->sk_mark;
ipc6.sockc.tsflags = sk->sk_tsflags;
fl6.flowlabel = ip6_make_flowinfo(ipc6.tclass, fl6.flowlabel);
dst = ip6_sk_dst_lookup_flow(sk, &fl6, daddr, false);