diff --git a/Documentation/netlink/specs/ovpn.yaml b/Documentation/netlink/specs/ovpn.yaml index b0c782e59a32..9bef20c62081 100644 --- a/Documentation/netlink/specs/ovpn.yaml +++ b/Documentation/netlink/specs/ovpn.yaml @@ -337,12 +337,19 @@ attribute-sets: type: nest doc: Peer specific cipher configuration nested-attributes: keyconf + - + name: target-netnsid + type: s32 + doc: >- + ID of the network namespace containing the ovpn interface to operate on - name: ovpn-peer-new-input subset-of: ovpn attributes: - name: ifindex + - + name: target-netnsid - name: peer nested-attributes: peer-new-input @@ -352,6 +359,8 @@ attribute-sets: attributes: - name: ifindex + - + name: target-netnsid - name: peer nested-attributes: peer-set-input @@ -361,6 +370,8 @@ attribute-sets: attributes: - name: ifindex + - + name: target-netnsid - name: peer nested-attributes: peer-del-input @@ -370,6 +381,8 @@ attribute-sets: attributes: - name: ifindex + - + name: target-netnsid - name: keyconf nested-attributes: keyconf-get @@ -379,6 +392,8 @@ attribute-sets: attributes: - name: ifindex + - + name: target-netnsid - name: keyconf nested-attributes: keyconf-swap-input @@ -388,6 +403,8 @@ attribute-sets: attributes: - name: ifindex + - + name: target-netnsid - name: keyconf nested-attributes: keyconf-del-input @@ -405,6 +422,7 @@ operations: request: attributes: - ifindex + - target-netnsid - peer - name: peer-set @@ -417,6 +435,7 @@ operations: request: attributes: - ifindex + - target-netnsid - peer - name: peer-get @@ -429,6 +448,7 @@ operations: request: attributes: - ifindex + - target-netnsid - peer reply: attributes: @@ -437,6 +457,7 @@ operations: request: attributes: - ifindex + - target-netnsid reply: attributes: - peer @@ -451,6 +472,7 @@ operations: request: attributes: - ifindex + - target-netnsid - peer - name: peer-del-ntf @@ -469,6 +491,7 @@ operations: request: attributes: - ifindex + - target-netnsid - keyconf - name: key-get @@ -481,6 +504,7 @@ operations: request: attributes: - ifindex + - target-netnsid - keyconf reply: attributes: @@ -496,6 +520,7 @@ operations: request: attributes: - ifindex + - target-netnsid - keyconf - name: key-swap-ntf @@ -515,6 +540,7 @@ operations: request: attributes: - ifindex + - target-netnsid - keyconf - diff --git a/drivers/net/ovpn/netlink-gen.c b/drivers/net/ovpn/netlink-gen.c index 2147cec7c2c5..3f513e3675a3 100644 --- a/drivers/net/ovpn/netlink-gen.c +++ b/drivers/net/ovpn/netlink-gen.c @@ -118,55 +118,64 @@ const struct nla_policy ovpn_peer_set_input_nl_policy[OVPN_A_PEER_TX_ID + 1] = { }; /* OVPN_CMD_PEER_NEW - do */ -static const struct nla_policy ovpn_peer_new_nl_policy[OVPN_A_PEER + 1] = { +static const struct nla_policy ovpn_peer_new_nl_policy[OVPN_A_TARGET_NETNSID + 1] = { [OVPN_A_IFINDEX] = { .type = NLA_U32, }, + [OVPN_A_TARGET_NETNSID] = { .type = NLA_S32, }, [OVPN_A_PEER] = NLA_POLICY_NESTED(ovpn_peer_new_input_nl_policy), }; /* OVPN_CMD_PEER_SET - do */ -static const struct nla_policy ovpn_peer_set_nl_policy[OVPN_A_PEER + 1] = { +static const struct nla_policy ovpn_peer_set_nl_policy[OVPN_A_TARGET_NETNSID + 1] = { [OVPN_A_IFINDEX] = { .type = NLA_U32, }, + [OVPN_A_TARGET_NETNSID] = { .type = NLA_S32, }, [OVPN_A_PEER] = NLA_POLICY_NESTED(ovpn_peer_set_input_nl_policy), }; /* OVPN_CMD_PEER_GET - do */ -static const struct nla_policy ovpn_peer_get_do_nl_policy[OVPN_A_PEER + 1] = { +static const struct nla_policy ovpn_peer_get_do_nl_policy[OVPN_A_TARGET_NETNSID + 1] = { [OVPN_A_IFINDEX] = { .type = NLA_U32, }, + [OVPN_A_TARGET_NETNSID] = { .type = NLA_S32, }, [OVPN_A_PEER] = NLA_POLICY_NESTED(ovpn_peer_nl_policy), }; /* OVPN_CMD_PEER_GET - dump */ -static const struct nla_policy ovpn_peer_get_dump_nl_policy[OVPN_A_IFINDEX + 1] = { +static const struct nla_policy ovpn_peer_get_dump_nl_policy[OVPN_A_TARGET_NETNSID + 1] = { [OVPN_A_IFINDEX] = { .type = NLA_U32, }, + [OVPN_A_TARGET_NETNSID] = { .type = NLA_S32, }, }; /* OVPN_CMD_PEER_DEL - do */ -static const struct nla_policy ovpn_peer_del_nl_policy[OVPN_A_PEER + 1] = { +static const struct nla_policy ovpn_peer_del_nl_policy[OVPN_A_TARGET_NETNSID + 1] = { [OVPN_A_IFINDEX] = { .type = NLA_U32, }, + [OVPN_A_TARGET_NETNSID] = { .type = NLA_S32, }, [OVPN_A_PEER] = NLA_POLICY_NESTED(ovpn_peer_del_input_nl_policy), }; /* OVPN_CMD_KEY_NEW - do */ -static const struct nla_policy ovpn_key_new_nl_policy[OVPN_A_KEYCONF + 1] = { +static const struct nla_policy ovpn_key_new_nl_policy[OVPN_A_TARGET_NETNSID + 1] = { [OVPN_A_IFINDEX] = { .type = NLA_U32, }, + [OVPN_A_TARGET_NETNSID] = { .type = NLA_S32, }, [OVPN_A_KEYCONF] = NLA_POLICY_NESTED(ovpn_keyconf_nl_policy), }; /* OVPN_CMD_KEY_GET - do */ -static const struct nla_policy ovpn_key_get_nl_policy[OVPN_A_KEYCONF + 1] = { +static const struct nla_policy ovpn_key_get_nl_policy[OVPN_A_TARGET_NETNSID + 1] = { [OVPN_A_IFINDEX] = { .type = NLA_U32, }, + [OVPN_A_TARGET_NETNSID] = { .type = NLA_S32, }, [OVPN_A_KEYCONF] = NLA_POLICY_NESTED(ovpn_keyconf_get_nl_policy), }; /* OVPN_CMD_KEY_SWAP - do */ -static const struct nla_policy ovpn_key_swap_nl_policy[OVPN_A_KEYCONF + 1] = { +static const struct nla_policy ovpn_key_swap_nl_policy[OVPN_A_TARGET_NETNSID + 1] = { [OVPN_A_IFINDEX] = { .type = NLA_U32, }, + [OVPN_A_TARGET_NETNSID] = { .type = NLA_S32, }, [OVPN_A_KEYCONF] = NLA_POLICY_NESTED(ovpn_keyconf_swap_input_nl_policy), }; /* OVPN_CMD_KEY_DEL - do */ -static const struct nla_policy ovpn_key_del_nl_policy[OVPN_A_KEYCONF + 1] = { +static const struct nla_policy ovpn_key_del_nl_policy[OVPN_A_TARGET_NETNSID + 1] = { [OVPN_A_IFINDEX] = { .type = NLA_U32, }, + [OVPN_A_TARGET_NETNSID] = { .type = NLA_S32, }, [OVPN_A_KEYCONF] = NLA_POLICY_NESTED(ovpn_keyconf_del_input_nl_policy), }; @@ -178,7 +187,7 @@ static const struct genl_split_ops ovpn_nl_ops[] = { .doit = ovpn_nl_peer_new_doit, .post_doit = ovpn_nl_post_doit, .policy = ovpn_peer_new_nl_policy, - .maxattr = OVPN_A_PEER, + .maxattr = OVPN_A_TARGET_NETNSID, .flags = GENL_ADMIN_PERM | GENL_CMD_CAP_DO, }, { @@ -187,7 +196,7 @@ static const struct genl_split_ops ovpn_nl_ops[] = { .doit = ovpn_nl_peer_set_doit, .post_doit = ovpn_nl_post_doit, .policy = ovpn_peer_set_nl_policy, - .maxattr = OVPN_A_PEER, + .maxattr = OVPN_A_TARGET_NETNSID, .flags = GENL_ADMIN_PERM | GENL_CMD_CAP_DO, }, { @@ -196,14 +205,14 @@ static const struct genl_split_ops ovpn_nl_ops[] = { .doit = ovpn_nl_peer_get_doit, .post_doit = ovpn_nl_post_doit, .policy = ovpn_peer_get_do_nl_policy, - .maxattr = OVPN_A_PEER, + .maxattr = OVPN_A_TARGET_NETNSID, .flags = GENL_ADMIN_PERM | GENL_CMD_CAP_DO, }, { .cmd = OVPN_CMD_PEER_GET, .dumpit = ovpn_nl_peer_get_dumpit, .policy = ovpn_peer_get_dump_nl_policy, - .maxattr = OVPN_A_IFINDEX, + .maxattr = OVPN_A_TARGET_NETNSID, .flags = GENL_ADMIN_PERM | GENL_CMD_CAP_DUMP, }, { @@ -212,7 +221,7 @@ static const struct genl_split_ops ovpn_nl_ops[] = { .doit = ovpn_nl_peer_del_doit, .post_doit = ovpn_nl_post_doit, .policy = ovpn_peer_del_nl_policy, - .maxattr = OVPN_A_PEER, + .maxattr = OVPN_A_TARGET_NETNSID, .flags = GENL_ADMIN_PERM | GENL_CMD_CAP_DO, }, { @@ -221,7 +230,7 @@ static const struct genl_split_ops ovpn_nl_ops[] = { .doit = ovpn_nl_key_new_doit, .post_doit = ovpn_nl_post_doit, .policy = ovpn_key_new_nl_policy, - .maxattr = OVPN_A_KEYCONF, + .maxattr = OVPN_A_TARGET_NETNSID, .flags = GENL_ADMIN_PERM | GENL_CMD_CAP_DO, }, { @@ -230,7 +239,7 @@ static const struct genl_split_ops ovpn_nl_ops[] = { .doit = ovpn_nl_key_get_doit, .post_doit = ovpn_nl_post_doit, .policy = ovpn_key_get_nl_policy, - .maxattr = OVPN_A_KEYCONF, + .maxattr = OVPN_A_TARGET_NETNSID, .flags = GENL_ADMIN_PERM | GENL_CMD_CAP_DO, }, { @@ -239,7 +248,7 @@ static const struct genl_split_ops ovpn_nl_ops[] = { .doit = ovpn_nl_key_swap_doit, .post_doit = ovpn_nl_post_doit, .policy = ovpn_key_swap_nl_policy, - .maxattr = OVPN_A_KEYCONF, + .maxattr = OVPN_A_TARGET_NETNSID, .flags = GENL_ADMIN_PERM | GENL_CMD_CAP_DO, }, { @@ -248,7 +257,7 @@ static const struct genl_split_ops ovpn_nl_ops[] = { .doit = ovpn_nl_key_del_doit, .post_doit = ovpn_nl_post_doit, .policy = ovpn_key_del_nl_policy, - .maxattr = OVPN_A_KEYCONF, + .maxattr = OVPN_A_TARGET_NETNSID, .flags = GENL_ADMIN_PERM | GENL_CMD_CAP_DO, }, }; diff --git a/drivers/net/ovpn/netlink.c b/drivers/net/ovpn/netlink.c index 4c66c1ec497e..d28d9ee1d3dc 100644 --- a/drivers/net/ovpn/netlink.c +++ b/drivers/net/ovpn/netlink.c @@ -38,6 +38,7 @@ ovpn_get_dev_from_attrs(struct net *net, const struct genl_info *info, { struct ovpn_priv *ovpn; struct net_device *dev; + struct net *target_net = NULL; int ifindex; if (GENL_REQ_ATTR_CHECK(info, OVPN_A_IFINDEX)) @@ -45,12 +46,25 @@ ovpn_get_dev_from_attrs(struct net *net, const struct genl_info *info, ifindex = nla_get_u32(info->attrs[OVPN_A_IFINDEX]); + if (info->attrs[OVPN_A_TARGET_NETNSID]) { + target_net = get_net_ns_by_id(net, nla_get_s32(info->attrs[OVPN_A_TARGET_NETNSID])); + if (!target_net) { + NL_SET_ERR_MSG_MOD(info->extack, + "invalid target network namespace ID"); + NL_SET_BAD_ATTR(info->extack, + info->attrs[OVPN_A_TARGET_NETNSID]); + return ERR_PTR(-EINVAL); + } + net = target_net; + } + rcu_read_lock(); dev = dev_get_by_index_rcu(net, ifindex); if (!dev) { rcu_read_unlock(); NL_SET_ERR_MSG_MOD(info->extack, "ifindex does not match any interface"); + put_net(target_net); return ERR_PTR(-ENODEV); } @@ -59,12 +73,14 @@ ovpn_get_dev_from_attrs(struct net *net, const struct genl_info *info, NL_SET_ERR_MSG_MOD(info->extack, "specified interface is not ovpn"); NL_SET_BAD_ATTR(info->extack, info->attrs[OVPN_A_IFINDEX]); + put_net(target_net); return ERR_PTR(-EINVAL); } ovpn = netdev_priv(dev); netdev_hold(dev, tracker, GFP_ATOMIC); rcu_read_unlock(); + put_net(target_net); return ovpn; } diff --git a/include/uapi/linux/ovpn.h b/include/uapi/linux/ovpn.h index 06690090a1a9..3fdf24182df4 100644 --- a/include/uapi/linux/ovpn.h +++ b/include/uapi/linux/ovpn.h @@ -85,6 +85,7 @@ enum { OVPN_A_IFINDEX = 1, OVPN_A_PEER, OVPN_A_KEYCONF, + OVPN_A_TARGET_NETNSID, __OVPN_A_MAX, OVPN_A_MAX = (__OVPN_A_MAX - 1)