From: Bert Goemans <bert.goemans_ext@softathome.com>
Date: Thu, 11 Jan 2024 16:17:42 +0000 (+0100)
Subject: odhcp6c: set server address from Information-request reply
X-Git-Url: http://git.openwrt.org/?a=commitdiff_plain;h=77e1ae21e67f81840024ffe5bb7cf69a8fb0d2f0;p=project%2Fodhcp6c.git

odhcp6c: set server address from Information-request reply

Update the environment variable STATE_SERVER_ADDR with the address
of the DHCPv6 server when a reply to an Information-request message
is received. Without this, there is no way of knowing which server
replied to the Information-request.
This is also consistent with the way that replies to Request and
Rebind messages are handled.

Signed-off-by: Bert Goemans <bert.goemans_ext@softathome.com>
Link: https://github.com/openwrt/odhcp6c/pull/83
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---

diff --git a/src/dhcpv6.c b/src/dhcpv6.c
index 2075006..4c1b889 100644
--- a/src/dhcpv6.c
+++ b/src/dhcpv6.c
@@ -1353,6 +1353,9 @@ static int dhcpv6_handle_reply(enum dhcpv6_msg orig, _unused const int rc,
 		if (!odhcp6c_is_bound())
 			dhcpv6_clear_all_server_cand();
 
+		odhcp6c_clear_state(STATE_SERVER_ADDR);
+		odhcp6c_add_state(STATE_SERVER_ADDR, &from->sin6_addr, 16);
+
 		t1 = refresh;
 		break;