cron2 has submitted this change. ( http://gerrit.openvpn.net/c/openvpn/+/1040?usp=email )
Change subject: dco_linux: enable extended netlink error reporting ...................................................................... dco_linux: enable extended netlink error reporting The ovpn netlink code reports more verbose error strings to help userspace understand what went wrong, rather than just returning, for example, -EINVAL. However, userspace must instruct the kernel netlink subsystem that it wants to receive such strings. code for parsing such strings has always been present but it was never used. Set the socket option which enables such reporting. Change-Id: I4457b1d7262e0a39c275d33aaef6c4bcbeae6ab3 Signed-off-by: Antonio Quartulli <anto...@mandelbit.com> Acked-by: Gert Doering <g...@greenie.muc.de> Message-Id: <20250609100216.3997-1-g...@greenie.muc.de> URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg31885.html Signed-off-by: Gert Doering <g...@greenie.muc.de> --- M src/openvpn/dco_linux.c 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/src/openvpn/dco_linux.c b/src/openvpn/dco_linux.c index 49dbdad..0345413 100644 --- a/src/openvpn/dco_linux.c +++ b/src/openvpn/dco_linux.c @@ -367,19 +367,19 @@ { len = strnlen((char *)nla_data(tb_msg[NLMSGERR_ATTR_MSG]), nla_len(tb_msg[NLMSGERR_ATTR_MSG])); - msg(M_WARN, "kernel error: %*s\n", len, + msg(M_WARN, "kernel error: %*s", len, (char *)nla_data(tb_msg[NLMSGERR_ATTR_MSG])); } if (tb_msg[OVPN_NLMSGERR_ATTR_MISS_NEST]) { - msg(M_WARN, "kernel error: missing required nesting type %u\n", + msg(M_WARN, "kernel error: missing required nesting type %u", nla_get_u32(tb_msg[OVPN_NLMSGERR_ATTR_MISS_NEST])); } if (tb_msg[OVPN_NLMSGERR_ATTR_MISS_TYPE]) { - msg(M_WARN, "kernel error: missing required attribute type %u\n", + msg(M_WARN, "kernel error: missing required attribute type %u", nla_get_u32(tb_msg[OVPN_NLMSGERR_ATTR_MISS_TYPE])); } @@ -405,6 +405,11 @@ nl_geterror(ret)); } + /* enable Extended ACK for detailed error reporting */ + ret = 1; + setsockopt(nl_socket_get_fd(dco->nl_sock), SOL_NETLINK, NETLINK_EXT_ACK, + &ret, sizeof(ret)); + /* set close on exec and non-block on the netlink socket */ set_cloexec(nl_socket_get_fd(dco->nl_sock)); set_nonblock(nl_socket_get_fd(dco->nl_sock)); -- To view, visit http://gerrit.openvpn.net/c/openvpn/+/1040?usp=email To unsubscribe, or for help writing mail filters, visit http://gerrit.openvpn.net/settings Gerrit-Project: openvpn Gerrit-Branch: master Gerrit-Change-Id: I4457b1d7262e0a39c275d33aaef6c4bcbeae6ab3 Gerrit-Change-Number: 1040 Gerrit-PatchSet: 3 Gerrit-Owner: ordex <anto...@mandelbit.com> Gerrit-Reviewer: cron2 <g...@greenie.muc.de> Gerrit-Reviewer: flichtenheld <fr...@lichtenheld.com> Gerrit-Reviewer: plaisthos <arne-open...@rfc2549.org> Gerrit-CC: openvpn-devel <openvpn-devel@lists.sourceforge.net> Gerrit-MessageType: merged
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