diff options
| author | Lennart Poettering <lennart@poettering.net> | 2015-05-15 12:20:36 +0200 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2015-05-15 12:20:36 +0200 |
| commit | fe0272999c8ef7961a446a7743f824ba4cfe0918 (patch) | |
| tree | dc7f05cdfd547610114ee0711752d043a6ee9081 /src/network/networkd-link.c | |
| parent | 5c82dd13e1eef502afcef209a3b14a2100966909 (diff) | |
networkd: don't try to turn on ipv6 forwarding if kernel lacks IPv6 support
http://lists.freedesktop.org/archives/systemd-devel/2015-May/031598.html
Diffstat (limited to 'src/network/networkd-link.c')
| -rw-r--r-- | src/network/networkd-link.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c index 1c59e150d5..8b0de1f741 100644 --- a/src/network/networkd-link.c +++ b/src/network/networkd-link.c @@ -26,6 +26,7 @@ #include "util.h" #include "virt.h" #include "fileio.h" +#include "socket-util.h" #include "bus-util.h" #include "udev-util.h" #include "network-internal.h" @@ -1489,6 +1490,10 @@ static int link_set_ipv6_forward(Link *link) { const char *p = NULL; int r; + /* Make this a NOP if IPv6 is not available */ + if (!socket_ipv6_is_supported()) + return 0; + p = strjoina("/proc/sys/net/ipv6/conf/", link->ifname, "/forwarding"); r = write_string_file_no_create(p, one_zero(link_ipv6_forward_enabled(link))); if (r < 0) |