From 8039371847174ff37dc3d02e83cd789dbb6140b0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michael=20Wei=C3=9F?= Date: Fri, 23 Sep 2022 15:38:19 +0200 Subject: [PATCH 1/2] net: openvswitch: allow metering in non-initial user namespace MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The Netlink interface for metering was restricted to global CAP_NET_ADMIN by using GENL_ADMIN_PERM. To allow metring in a non-inital user namespace, e.g., a container, this is changed to GENL_UNS_ADMIN_PERM. Signed-off-by: Michael Weiß Signed-off-by: Paolo Abeni --- net/openvswitch/meter.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/net/openvswitch/meter.c b/net/openvswitch/meter.c index 51111a9009bd..6e38f68f88c2 100644 --- a/net/openvswitch/meter.c +++ b/net/openvswitch/meter.c @@ -343,7 +343,7 @@ static struct dp_meter *dp_meter_create(struct nlattr **a) return ERR_PTR(-EINVAL); /* Allocate and set up the meter before locking anything. */ - meter = kzalloc(struct_size(meter, bands, n_bands), GFP_KERNEL); + meter = kzalloc(struct_size(meter, bands, n_bands), GFP_KERNEL_ACCOUNT); if (!meter) return ERR_PTR(-ENOMEM); @@ -687,9 +687,9 @@ static const struct genl_small_ops dp_meter_genl_ops[] = { }, { .cmd = OVS_METER_CMD_SET, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, - .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN - * privilege. - */ + .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN + * privilege. + */ .doit = ovs_meter_cmd_set, }, { .cmd = OVS_METER_CMD_GET, @@ -699,9 +699,9 @@ static const struct genl_small_ops dp_meter_genl_ops[] = { }, { .cmd = OVS_METER_CMD_DEL, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, - .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN - * privilege. - */ + .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN + * privilege. + */ .doit = ovs_meter_cmd_del }, }; From 59cd7377660a76780bfdd9fd26da058bcca5320d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michael=20Wei=C3=9F?= Date: Fri, 23 Sep 2022 15:38:20 +0200 Subject: [PATCH 2/2] net: openvswitch: allow conntrack in non-initial user namespace MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Similar to the previous commit, the Netlink interface of the OVS conntrack module was restricted to global CAP_NET_ADMIN by using GENL_ADMIN_PERM. This is changed to GENL_UNS_ADMIN_PERM to support unprivileged containers in non-initial user namespace. Signed-off-by: Michael Weiß Signed-off-by: Paolo Abeni --- net/openvswitch/conntrack.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c index 48e8f5c29b67..cb255d8ed99a 100644 --- a/net/openvswitch/conntrack.c +++ b/net/openvswitch/conntrack.c @@ -1982,7 +1982,8 @@ static int ovs_ct_limit_set_zone_limit(struct nlattr *nla_zone_limit, } else { struct ovs_ct_limit *ct_limit; - ct_limit = kmalloc(sizeof(*ct_limit), GFP_KERNEL); + ct_limit = kmalloc(sizeof(*ct_limit), + GFP_KERNEL_ACCOUNT); if (!ct_limit) return -ENOMEM; @@ -2252,14 +2253,16 @@ exit_err: static const struct genl_small_ops ct_limit_genl_ops[] = { { .cmd = OVS_CT_LIMIT_CMD_SET, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, - .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN - * privilege. */ + .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN + * privilege. + */ .doit = ovs_ct_limit_cmd_set, }, { .cmd = OVS_CT_LIMIT_CMD_DEL, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, - .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN - * privilege. */ + .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN + * privilege. + */ .doit = ovs_ct_limit_cmd_del, }, { .cmd = OVS_CT_LIMIT_CMD_GET,