diff options
| author | Jo-Philipp Wich <jo@mein.io> | 2021-09-22 10:55:07 +0300 |
|---|---|---|
| committer | Jo-Philipp Wich <jo@mein.io> | 2021-09-22 10:56:09 +0300 |
| commit | 45a398e1ed86c9706d47ff46be73bdaa303ff661 (patch) | |
| tree | ce42d9553bbaa154583f43d0076e99aef04e4015 /libs | |
| parent | 93bd93e220714276eff95ea51793bb2f826328e8 (diff) | |
rpcd-mod-luci: avoid PTR requests for IPv6 link-local and ULA addrs
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Diffstat (limited to 'libs')
| -rw-r--r-- | libs/rpcd-mod-luci/src/luci.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/libs/rpcd-mod-luci/src/luci.c b/libs/rpcd-mod-luci/src/luci.c index b89bca494d..53ffff4fd2 100644 --- a/libs/rpcd-mod-luci/src/luci.c +++ b/libs/rpcd-mod-luci/src/luci.c @@ -52,6 +52,10 @@ #include <rpcd/plugin.h> +#ifndef IN6_IS_ADDR_ULA +#define IN6_IS_ADDR_ULA(a) (((a)->s6_addr[0] & 0xfe) == 0xfc) +#endif + static struct blob_buf blob; @@ -1720,7 +1724,9 @@ rpc_luci_get_host_hints_rrdns(struct reply_context *rctx) } } avl_for_each_element(&hint->ip6addrs, addr, avl) { - if (!IN6_IS_ADDR_UNSPECIFIED(&addr->addr.in6)) { + if (!IN6_IS_ADDR_UNSPECIFIED(&addr->addr.in6) && + !IN6_IS_ADDR_LINKLOCAL(&addr->addr.in6) && + !IN6_IS_ADDR_ULA(&addr>addr.in6)) { inet_ntop(AF_INET6, &addr->addr.in6, buf, sizeof(buf)); blobmsg_add_string(&req, NULL, buf); n++; |