[MPTCP] [PATCH 2/5] mptcp: Add missing ADD_ADDR handling

[Peter Krystad <peter.krystad at linux.intel.com>]

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Add missing piece that copies IPv6 address into TCP option

squashto: Add ADD_ADDR handling

Signed-off-by: Peter Krystad <peter.krystad(a)linux.intel.com>
---
 net/mptcp/options.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index 4bb3766fce5e..a63137b73557 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -463,14 +463,22 @@ static bool mptcp_established_options_addr(struct sock *sk,
 	if (mptcp_pm_addr_signal(msk, &id, &saddr))
 		return false;
 
-	if (saddr.ss_family == AF_INET && remaining < TCPOLEN_MPTCP_ADD_ADDR)
-		return false;
-
-	opts->suboptions |= OPTION_MPTCP_ADD_ADDR;
-	opts->addr_id = id;
-	opts->addr.s_addr = ((struct sockaddr_in *)&saddr)->sin_addr.s_addr;
-	*size = TCPOLEN_MPTCP_ADD_ADDR;
-
+	if (saddr.ss_family == AF_INET) {
+		if (remaining < TCPOLEN_MPTCP_ADD_ADDR)
+			return false;
+		opts->suboptions |= OPTION_MPTCP_ADD_ADDR;
+		opts->addr_id = id;
+		opts->addr = ((struct sockaddr_in *)&saddr)->sin_addr;
+		*size = TCPOLEN_MPTCP_ADD_ADDR;
+	}
+	if (saddr.ss_family == AF_INET6) {
+		if (remaining < TCPOLEN_MPTCP_ADD_ADDR6)
+			return false;
+		opts->suboptions |= OPTION_MPTCP_ADD_ADDR6;
+		opts->addr_id = id;
+		opts->addr6 = ((struct sockaddr_in6 *)&saddr)->sin6_addr;
+		*size = TCPOLEN_MPTCP_ADD_ADDR6;
+	}
 	msk->addr_signal = 0;
 
 	return true;
-- 
2.17.2