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net: inet_diag: export IPV6_V6ONLY sockopt

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For AF_INET6 sockets, the value of struct ipv6_pinfo.ipv6only is
exported to userspace. It indicates whether a socket bound to in6addr_any
listens on IPv4 as well as IPv6. Since the socket is natively IPv6, it is not
listed by e.g. 'ss -l -4'.

This patch is accompanied by an appropriate one for iproute2 to enable
the additional information in 'ss -e'.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Phil Sutter 2015-06-24 11:02:51 +02:00 • committed by David S. Miller
parent f389a40ec3
commit 204621551b
2 changed files with 6 additions and 1 deletions
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3
include/uapi/linux/inet_diag.h
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@ -112,9 +112,10 @@ enum {
INET_DIAG_SHUTDOWN,
INET_DIAG_DCTCPINFO,
INET_DIAG_PROTOCOL, /* response attribute only */
INET_DIAG_SKV6ONLY,
};
#define INET_DIAG_MAX INET_DIAG_PROTOCOL
#define INET_DIAG_MAX INET_DIAG_SKV6ONLY
/* INET_DIAG_MEM */