From: Kristian Evensen <[email protected]> According to the OpenWRT Network documentation for route, the 'source' option is "The preferred source address when sending to destinations covered by the target". However, netifd currently stores this value in RTA_SRC on NEWROUTE/DELROUTE.
RTA_SRC is not used by kernel when handling NEWROUTE nor DELROUTE for IPv4 routes. When adding a new IPv4 route, the source is stored in RTA_PREFSRC and the option works as specified in documentation. For IPv6, the address is still stored in RTA_SRC as to not break source-destination routing for IPv6. v2: Limit patch to IPv4, to prevent breaking IPv6 configurations (thanks Steven Barth) Signed-off-by: Kristian Evensen <[email protected]> --- system-linux.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/system-linux.c b/system-linux.c index 8518f0f..ed69bef 100644 --- a/system-linux.c +++ b/system-linux.c @@ -1433,8 +1433,12 @@ static int system_rt(struct device *dev, struct device_route *route, int cmd) if (route->mask) nla_put(msg, RTA_DST, alen, &route->addr); - if (route->sourcemask) - nla_put(msg, RTA_SRC, alen, &route->source); + if (route->sourcemask) { + if (rtm.rtm_family == AF_INET) + nla_put(msg, RTA_PREFSRC, alen, &route->source); + else + nla_put(msg, RTA_SRC, alen, &route->source); + } if (route->metric > 0) nla_put_u32(msg, RTA_PRIORITY, route->metric); -- 1.8.3.2 _______________________________________________ openwrt-devel mailing list [email protected] https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
