--- /dev/null
+/*
+ * (C) 2018 by Pablo Neira Ayuso <pablo@netfilter.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <inttypes.h>
+
+#include <linux/netfilter/nf_tables.h>
+
+#include <libmnl/libmnl.h>
+#include <libnftnl/object.h>
+
+#include "internal.h"
+#include "obj.h"
+
+static int
+nftnl_obj_tunnel_set(struct nftnl_obj *e, uint16_t type,
+ const void *data, uint32_t data_len)
+{
+ struct nftnl_obj_tunnel *tun = nftnl_obj_data(e);
+
+ switch (type) {
+ case NFTNL_OBJ_TUNNEL_ID:
+ tun->id = *((uint32_t *)data);
+ break;
+ case NFTNL_OBJ_TUNNEL_IPV4_SRC:
+ tun->src_v4 = *((uint32_t *)data);
+ break;
+ case NFTNL_OBJ_TUNNEL_IPV4_DST:
+ tun->dst_v4 = *((uint32_t *)data);
+ break;
+ case NFTNL_OBJ_TUNNEL_IPV6_SRC:
+ memcpy(&tun->src_v6, data, sizeof(struct in6_addr));
+ break;
+ case NFTNL_OBJ_TUNNEL_IPV6_DST:
+ memcpy(&tun->dst_v6, data, sizeof(struct in6_addr));
+ break;
+ case NFTNL_OBJ_TUNNEL_IPV6_FLOWLABEL:
+ tun->flowlabel = (*(uint32_t *)data);
+ break;
+ case NFTNL_OBJ_TUNNEL_SPORT:
+ tun->sport = (*(uint16_t *)data);
+ break;
+ case NFTNL_OBJ_TUNNEL_DPORT:
+ tun->dport = (*(uint16_t *)data);
+ break;
+ case NFTNL_OBJ_TUNNEL_FLAGS:
+ tun->tun_flags = (*(uint32_t *)data);
+ break;
+ case NFTNL_OBJ_TUNNEL_TOS:
+ tun->tun_tos = (*(uint8_t *)data);
+ break;
+ case NFTNL_OBJ_TUNNEL_TTL:
+ tun->tun_ttl = (*(uint8_t *)data);
+ break;
+ case NFTNL_OBJ_TUNNEL_VXLAN_GBP:
+ tun->u.tun_vxlan.gbp = (*(uint32_t *)data);
+ break;
+ case NFTNL_OBJ_TUNNEL_ERSPAN_VERSION:
+ tun->u.tun_erspan.version = (*(uint32_t *)data);
+ break;
+ case NFTNL_OBJ_TUNNEL_ERSPAN_V1_INDEX:
+ tun->u.tun_erspan.u.v1_index = (*(uint32_t *)data);
+ break;
+ case NFTNL_OBJ_TUNNEL_ERSPAN_V2_HWID:
+ tun->u.tun_erspan.u.v2.hwid = (*(uint8_t *)data);
+ break;
+ case NFTNL_OBJ_TUNNEL_ERSPAN_V2_DIR:
+ tun->u.tun_erspan.u.v2.dir = (*(uint8_t *)data);
+ break;
+ default:
+ return -1;
+ }
+ return 0;
+}
+
+static const void *
+nftnl_obj_tunnel_get(const struct nftnl_obj *e, uint16_t type,
+ uint32_t *data_len)
+{
+ struct nftnl_obj_tunnel *tun = nftnl_obj_data(e);
+
+ switch (type) {
+ case NFTNL_OBJ_TUNNEL_ID:
+ *data_len = sizeof(tun->id);
+ return &tun->id;
+ case NFTNL_OBJ_TUNNEL_IPV4_SRC:
+ *data_len = sizeof(tun->src_v4);
+ return &tun->src_v4;
+ case NFTNL_OBJ_TUNNEL_IPV4_DST:
+ *data_len = sizeof(tun->dst_v4);
+ return &tun->dst_v4;
+ case NFTNL_OBJ_TUNNEL_IPV6_SRC:
+ *data_len = sizeof(tun->src_v6);
+ return &tun->src_v6;
+ case NFTNL_OBJ_TUNNEL_IPV6_DST:
+ *data_len = sizeof(tun->dst_v6);
+ return &tun->dst_v6;
+ case NFTNL_OBJ_TUNNEL_IPV6_FLOWLABEL:
+ *data_len = sizeof(tun->flowlabel);
+ return &tun->flowlabel;
+ case NFTNL_OBJ_TUNNEL_SPORT:
+ *data_len = sizeof(tun->sport);
+ return &tun->sport;
+ case NFTNL_OBJ_TUNNEL_DPORT:
+ *data_len = sizeof(tun->dport);
+ return &tun->dport;
+ case NFTNL_OBJ_TUNNEL_FLAGS:
+ *data_len = sizeof(tun->tun_flags);
+ return &tun->tun_flags;
+ case NFTNL_OBJ_TUNNEL_TOS:
+ *data_len = sizeof(tun->tun_tos);
+ return &tun->tun_tos;
+ case NFTNL_OBJ_TUNNEL_TTL:
+ *data_len = sizeof(tun->tun_ttl);
+ return &tun->tun_ttl;
+ case NFTNL_OBJ_TUNNEL_VXLAN_GBP:
+ *data_len = sizeof(tun->u.tun_vxlan.gbp);
+ return &tun->u.tun_vxlan.gbp;
+ case NFTNL_OBJ_TUNNEL_ERSPAN_VERSION:
+ *data_len = sizeof(tun->u.tun_erspan.version);
+ return &tun->u.tun_erspan.version;
+ case NFTNL_OBJ_TUNNEL_ERSPAN_V1_INDEX:
+ *data_len = sizeof(tun->u.tun_erspan.u.v1_index);
+ return &tun->u.tun_erspan.u.v1_index;
+ case NFTNL_OBJ_TUNNEL_ERSPAN_V2_HWID:
+ *data_len = sizeof(tun->u.tun_erspan.u.v2.hwid);
+ return &tun->u.tun_erspan.u.v2.hwid;
+ case NFTNL_OBJ_TUNNEL_ERSPAN_V2_DIR:
+ *data_len = sizeof(tun->u.tun_erspan.u.v2.dir);
+ return &tun->u.tun_erspan.u.v2.dir;
+ }
+ return NULL;
+}
+
+static int nftnl_obj_tunnel_cb(const struct nlattr *attr, void *data)
+{
+ const struct nlattr **tb = data;
+ int type = mnl_attr_get_type(attr);
+
+ if (mnl_attr_type_valid(attr, NFTA_TUNNEL_KEY_MAX) < 0)
+ return MNL_CB_OK;
+
+ switch(type) {
+ case NFTA_TUNNEL_KEY_ID:
+ case NFTA_TUNNEL_KEY_FLAGS:
+ if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+ abi_breakage();
+ break;
+ case NFTA_TUNNEL_KEY_IP:
+ case NFTA_TUNNEL_KEY_IP6:
+ case NFTA_TUNNEL_KEY_OPTS:
+ if (mnl_attr_validate(attr, MNL_TYPE_NESTED) < 0)
+ abi_breakage();
+ break;
+ case NFTA_TUNNEL_KEY_SPORT:
+ case NFTA_TUNNEL_KEY_DPORT:
+ if (mnl_attr_validate(attr, MNL_TYPE_U16) < 0)
+ abi_breakage();
+ break;
+ case NFTA_TUNNEL_KEY_TOS:
+ case NFTA_TUNNEL_KEY_TTL:
+ if (mnl_attr_validate(attr, MNL_TYPE_U8) < 0)
+ abi_breakage();
+ break;
+ }
+
+ tb[type] = attr;
+ return MNL_CB_OK;
+}
+
+static void
+nftnl_obj_tunnel_build(struct nlmsghdr *nlh, const struct nftnl_obj *e)
+{
+ struct nftnl_obj_tunnel *tun = nftnl_obj_data(e);
+ struct nlattr *nest;
+
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_ID))
+ mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_ID, htonl(tun->id));
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV4_SRC) ||
+ e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV4_DST)) {
+ nest = mnl_attr_nest_start(nlh, NFTA_TUNNEL_KEY_IP);
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV4_SRC))
+ mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_IP_SRC, tun->src_v4);
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV4_DST))
+ mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_IP_DST, tun->dst_v4);
+ mnl_attr_nest_end(nlh, nest);
+ }
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV6_SRC) ||
+ e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV6_DST)) {
+ nest = mnl_attr_nest_start(nlh, NFTA_TUNNEL_KEY_IP6);
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV6_SRC))
+ mnl_attr_put(nlh, NFTA_TUNNEL_KEY_IP6_SRC,
+ sizeof(tun->src_v6), &tun->src_v6);
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV6_DST))
+ mnl_attr_put(nlh, NFTA_TUNNEL_KEY_IP6_DST,
+ sizeof(tun->dst_v6), &tun->dst_v6);
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV6_FLOWLABEL))
+ mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_IP6_FLOWLABEL,
+ htonl(tun->flowlabel));
+ mnl_attr_nest_end(nlh, nest);
+ }
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_SPORT))
+ mnl_attr_put_u16(nlh, NFTA_TUNNEL_KEY_SPORT, htons(tun->sport));
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_DPORT))
+ mnl_attr_put_u16(nlh, NFTA_TUNNEL_KEY_DPORT, htons(tun->dport));
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_TOS))
+ mnl_attr_put_u8(nlh, NFTA_TUNNEL_KEY_TOS, tun->tun_tos);
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_TTL))
+ mnl_attr_put_u8(nlh, NFTA_TUNNEL_KEY_TTL, tun->tun_ttl);
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_FLAGS))
+ mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_FLAGS, htonl(tun->tun_flags));
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_VXLAN_GBP)) {
+ nest = mnl_attr_nest_start(nlh, NFTA_TUNNEL_KEY_OPTS);
+ mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_VXLAN_GBP,
+ htonl(tun->u.tun_vxlan.gbp));
+ mnl_attr_nest_end(nlh, nest);
+ }
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_ERSPAN_VERSION) &&
+ (e->flags & (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V1_INDEX) ||
+ (e->flags & (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V2_HWID) &&
+ e->flags & (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V2_DIR)))) {
+ struct nlattr *nest_inner;
+
+ nest = mnl_attr_nest_start(nlh, NFTA_TUNNEL_KEY_OPTS);
+ nest_inner = mnl_attr_nest_start(nlh, NFTA_TUNNEL_KEY_OPTS_ERSPAN);
+ mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_ERSPAN_VERSION,
+ htonl(tun->u.tun_erspan.version));
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V1_INDEX))
+ mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX,
+ htonl(tun->u.tun_erspan.u.v1_index));
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V2_HWID))
+ mnl_attr_put_u8(nlh, NFTA_TUNNEL_KEY_ERSPAN_V2_HWID,
+ tun->u.tun_erspan.u.v2.hwid);
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V2_DIR))
+ mnl_attr_put_u8(nlh, NFTA_TUNNEL_KEY_ERSPAN_V2_DIR,
+ tun->u.tun_erspan.u.v2.dir);
+ mnl_attr_nest_end(nlh, nest_inner);
+ mnl_attr_nest_end(nlh, nest);
+ }
+}
+
+static int nftnl_obj_tunnel_ip_cb(const struct nlattr *attr, void *data)
+{
+ const struct nlattr **tb = data;
+ int type = mnl_attr_get_type(attr);
+
+ if (mnl_attr_type_valid(attr, NFTA_TUNNEL_KEY_MAX) < 0)
+ return MNL_CB_OK;
+
+ switch (type) {
+ case NFTA_TUNNEL_KEY_IP_SRC:
+ case NFTA_TUNNEL_KEY_IP_DST:
+ if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+ abi_breakage();
+ break;
+ }
+
+ tb[type] = attr;
+ return MNL_CB_OK;
+}
+
+static int nftnl_obj_tunnel_parse_ip(struct nftnl_obj *e, struct nlattr *attr,
+ struct nftnl_obj_tunnel *tun)
+{
+ struct nlattr *tb[NFTA_TUNNEL_KEY_IP_MAX + 1] = {};
+
+ if (mnl_attr_parse_nested(attr, nftnl_obj_tunnel_ip_cb, tb) < 0)
+ return -1;
+
+ if (tb[NFTA_TUNNEL_KEY_IP_SRC]) {
+ tun->src_v4 = mnl_attr_get_u32(tb[NFTA_TUNNEL_KEY_IP_SRC]);
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_IPV4_SRC);
+ }
+ if (tb[NFTA_TUNNEL_KEY_IP_DST]) {
+ tun->dst_v4 = mnl_attr_get_u32(tb[NFTA_TUNNEL_KEY_IP_DST]);
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_IPV4_DST);
+ }
+
+ return 0;
+}
+
+static int nftnl_obj_tunnel_ip6_cb(const struct nlattr *attr, void *data)
+{
+ const struct nlattr **tb = data;
+ int type = mnl_attr_get_type(attr);
+
+ if (mnl_attr_type_valid(attr, NFTA_TUNNEL_KEY_MAX) < 0)
+ return MNL_CB_OK;
+
+ switch(type) {
+ case NFTA_TUNNEL_KEY_IP6_SRC:
+ case NFTA_TUNNEL_KEY_IP6_DST:
+ if (mnl_attr_validate(attr, MNL_TYPE_BINARY) < 0)
+ abi_breakage();
+ break;
+ case NFTA_TUNNEL_KEY_IP6_FLOWLABEL:
+ if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+ abi_breakage();
+ break;
+ }
+
+ tb[type] = attr;
+ return MNL_CB_OK;
+}
+
+static int nftnl_obj_tunnel_parse_ip6(struct nftnl_obj *e, struct nlattr *attr,
+ struct nftnl_obj_tunnel *tun)
+{
+ struct nlattr *tb[NFTA_TUNNEL_KEY_IP6_MAX + 1] = {};
+
+ if (mnl_attr_parse_nested(attr, nftnl_obj_tunnel_ip6_cb, tb) < 0)
+ return -1;
+
+ if (tb[NFTA_TUNNEL_KEY_IP6_SRC]) {
+ memcpy(&tun->src_v6,
+ mnl_attr_get_payload(tb[NFTA_TUNNEL_KEY_IP6_SRC]),
+ sizeof(struct in6_addr));
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_IPV6_SRC);
+ }
+ if (tb[NFTA_TUNNEL_KEY_IP6_DST]) {
+ memcpy(&tun->dst_v6,
+ mnl_attr_get_payload(tb[NFTA_TUNNEL_KEY_IP6_DST]),
+ sizeof(struct in6_addr));
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_IPV6_DST);
+ }
+ if (tb[NFTA_TUNNEL_KEY_IP6_FLOWLABEL]) {
+ tun->flowlabel =
+ ntohl(mnl_attr_get_u32(tb[NFTA_TUNNEL_KEY_IP6_FLOWLABEL]));
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_IPV6_FLOWLABEL);
+ }
+
+ return 0;
+}
+
+static int nftnl_obj_tunnel_vxlan_cb(const struct nlattr *attr, void *data)
+{
+ const struct nlattr **tb = data;
+ int type = mnl_attr_get_type(attr);
+
+ if (mnl_attr_type_valid(attr, NFTA_TUNNEL_KEY_VXLAN_MAX) < 0)
+ return MNL_CB_OK;
+
+ switch (type) {
+ case NFTA_TUNNEL_KEY_VXLAN_GBP:
+ if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+ abi_breakage();
+ break;
+ }
+
+ tb[type] = attr;
+ return MNL_CB_OK;
+}
+
+static int
+nftnl_obj_tunnel_parse_vxlan(struct nftnl_obj *e, struct nlattr *attr,
+ struct nftnl_obj_tunnel *tun)
+{
+ struct nlattr *tb[NFTA_TUNNEL_KEY_VXLAN_MAX + 1] = {};
+
+ if (mnl_attr_parse_nested(attr, nftnl_obj_tunnel_vxlan_cb, tb) < 0)
+ return -1;
+
+ if (tb[NFTA_TUNNEL_KEY_VXLAN_GBP]) {
+ tun->u.tun_vxlan.gbp =
+ ntohl(mnl_attr_get_u32(tb[NFTA_TUNNEL_KEY_VXLAN_GBP]));
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_VXLAN_GBP);
+ }
+
+ return 0;
+}
+
+static int nftnl_obj_tunnel_erspan_cb(const struct nlattr *attr, void *data)
+{
+ const struct nlattr **tb = data;
+ int type = mnl_attr_get_type(attr);
+
+ if (mnl_attr_type_valid(attr, NFTA_TUNNEL_KEY_ERSPAN_MAX) < 0)
+ return MNL_CB_OK;
+
+ switch (type) {
+ case NFTA_TUNNEL_KEY_ERSPAN_VERSION:
+ case NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX:
+ if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+ abi_breakage();
+ break;
+ case NFTA_TUNNEL_KEY_ERSPAN_V2_HWID:
+ case NFTA_TUNNEL_KEY_ERSPAN_V2_DIR:
+ if (mnl_attr_validate(attr, MNL_TYPE_U8) < 0)
+ abi_breakage();
+ break;
+ }
+
+ tb[type] = attr;
+ return MNL_CB_OK;
+}
+
+static int
+nftnl_obj_tunnel_parse_erspan(struct nftnl_obj *e, struct nlattr *attr,
+ struct nftnl_obj_tunnel *tun)
+{
+ struct nlattr *tb[NFTA_TUNNEL_KEY_ERSPAN_MAX + 1] = {};
+
+ if (mnl_attr_parse_nested(attr, nftnl_obj_tunnel_erspan_cb, tb) < 0)
+ return -1;
+
+ if (tb[NFTA_TUNNEL_KEY_ERSPAN_VERSION]) {
+ tun->u.tun_erspan.version =
+ ntohl(mnl_attr_get_u32(tb[NFTA_TUNNEL_KEY_ERSPAN_VERSION]));
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_ERSPAN_VERSION);
+ }
+ if (tb[NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX]) {
+ tun->u.tun_erspan.u.v1_index =
+ ntohl(mnl_attr_get_u32(tb[NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX]));
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V1_INDEX);
+ }
+ if (tb[NFTA_TUNNEL_KEY_ERSPAN_V2_HWID]) {
+ tun->u.tun_erspan.u.v2.hwid =
+ mnl_attr_get_u8(tb[NFTA_TUNNEL_KEY_ERSPAN_V2_HWID]);
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V2_HWID);
+ }
+ if (tb[NFTA_TUNNEL_KEY_ERSPAN_V2_DIR]) {
+ tun->u.tun_erspan.u.v2.dir =
+ mnl_attr_get_u8(tb[NFTA_TUNNEL_KEY_ERSPAN_V2_DIR]);
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V2_DIR);
+ }
+
+ return 0;
+}
+
+static int nftnl_obj_tunnel_opts_cb(const struct nlattr *attr, void *data)
+{
+ const struct nlattr **tb = data;
+ int type = mnl_attr_get_type(attr);
+
+ if (mnl_attr_type_valid(attr, NFTA_TUNNEL_KEY_OPTS_MAX) < 0)
+ return MNL_CB_OK;
+
+ switch (type) {
+ case NFTA_TUNNEL_KEY_OPTS_VXLAN:
+ case NFTA_TUNNEL_KEY_OPTS_ERSPAN:
+ if (mnl_attr_validate(attr, MNL_TYPE_NESTED) < 0)
+ abi_breakage();
+ break;
+ }
+
+ tb[type] = attr;
+ return MNL_CB_OK;
+}
+
+static int
+nftnl_obj_tunnel_parse_opts(struct nftnl_obj *e, struct nlattr *attr,
+ struct nftnl_obj_tunnel *tun)
+{
+ struct nlattr *tb[NFTA_TUNNEL_KEY_OPTS_MAX + 1] = {};
+ int err = 0;
+
+ if (mnl_attr_parse_nested(attr, nftnl_obj_tunnel_opts_cb, tb) < 0)
+ return -1;
+
+ if (tb[NFTA_TUNNEL_KEY_OPTS_VXLAN]) {
+ err = nftnl_obj_tunnel_parse_vxlan(e, tb[NFTA_TUNNEL_KEY_OPTS_VXLAN],
+ tun);
+ } else if (tb[NFTA_TUNNEL_KEY_OPTS_ERSPAN]) {
+ err = nftnl_obj_tunnel_parse_erspan(e, tb[NFTA_TUNNEL_KEY_OPTS_ERSPAN],
+ tun);
+ }
+
+ return err;
+}
+
+static int
+nftnl_obj_tunnel_parse(struct nftnl_obj *e, struct nlattr *attr)
+{
+ struct nftnl_obj_tunnel *tun = nftnl_obj_data(e);
+ struct nlattr *tb[NFTA_TUNNEL_KEY_MAX + 1] = {};
+ int err;
+
+ if (mnl_attr_parse_nested(attr, nftnl_obj_tunnel_cb, tb) < 0)
+ return -1;
+
+ if (tb[NFTA_TUNNEL_KEY_ID]) {
+ tun->id = ntohl(mnl_attr_get_u32(tb[NFTA_TUNNEL_KEY_ID]));
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_ID);
+ }
+ if (tb[NFTA_TUNNEL_KEY_IP]) {
+ err = nftnl_obj_tunnel_parse_ip(e, tb[NFTA_TUNNEL_KEY_IP], tun);
+ if (err < 0)
+ return err;
+ } else if (tb[NFTA_TUNNEL_KEY_IP6]) {
+ err = nftnl_obj_tunnel_parse_ip6(e, tb[NFTA_TUNNEL_KEY_IP6], tun);
+ if (err < 0)
+ return err;
+ }
+
+ if (tb[NFTA_TUNNEL_KEY_SPORT]) {
+ tun->sport = ntohs(mnl_attr_get_u16(tb[NFTA_TUNNEL_KEY_SPORT]));
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_SPORT);
+ }
+ if (tb[NFTA_TUNNEL_KEY_DPORT]) {
+ tun->dport = ntohs(mnl_attr_get_u16(tb[NFTA_TUNNEL_KEY_DPORT]));
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_DPORT);
+ }
+ if (tb[NFTA_TUNNEL_KEY_TOS]) {
+ tun->tun_tos = mnl_attr_get_u8(tb[NFTA_TUNNEL_KEY_TOS]);
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_TOS);
+ }
+ if (tb[NFTA_TUNNEL_KEY_TTL]) {
+ tun->tun_ttl = mnl_attr_get_u8(tb[NFTA_TUNNEL_KEY_TTL]);
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_TTL);
+ }
+ if (tb[NFTA_TUNNEL_KEY_FLAGS]) {
+ tun->tun_flags = mnl_attr_get_u8(tb[NFTA_TUNNEL_KEY_FLAGS]);
+ e->flags |= (1 << NFTNL_OBJ_TUNNEL_FLAGS);
+ }
+ if (tb[NFTA_TUNNEL_KEY_OPTS]) {
+ err = nftnl_obj_tunnel_parse_opts(e, tb[NFTA_TUNNEL_KEY_OPTS], tun);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+static int nftnl_obj_tunnel_export(char *buf, size_t size,
+ const struct nftnl_obj *e, int type)
+{
+ struct nftnl_obj_tunnel *tun = nftnl_obj_data(e);
+ NFTNL_BUF_INIT(b, buf, size);
+
+ if (e->flags & (1 << NFTNL_OBJ_TUNNEL_ID))
+ nftnl_buf_u64(&b, type, tun->id, ID);
+
+ return nftnl_buf_done(&b);
+}
+
+static int nftnl_obj_tunnel_snprintf_default(char *buf, size_t len,
+ const struct nftnl_obj *e)
+{
+ struct nftnl_obj_tunnel *tun = nftnl_obj_data(e);
+
+ return snprintf(buf, len, "id %u ", tun->id);
+}
+
+static int nftnl_obj_tunnel_snprintf(char *buf, size_t len, uint32_t type,
+ uint32_t flags, const struct nftnl_obj *e)
+{
+ if (len)
+ buf[0] = '\0';
+
+ switch (type) {
+ case NFTNL_OUTPUT_DEFAULT:
+ return nftnl_obj_tunnel_snprintf_default(buf, len, e);
+ case NFTNL_OUTPUT_XML:
+ case NFTNL_OUTPUT_JSON:
+ return nftnl_obj_tunnel_export(buf, len, e, type);
+ default:
+ break;
+ }
+ return -1;
+}
+
+struct obj_ops obj_ops_tunnel = {
+ .name = "tunnel",
+ .type = NFT_OBJECT_TUNNEL,
+ .alloc_len = sizeof(struct nftnl_obj_tunnel),
+ .max_attr = NFTA_TUNNEL_KEY_MAX,
+ .set = nftnl_obj_tunnel_set,
+ .get = nftnl_obj_tunnel_get,
+ .parse = nftnl_obj_tunnel_parse,
+ .build = nftnl_obj_tunnel_build,
+ .snprintf = nftnl_obj_tunnel_snprintf,
+};
projects / thirdparty / libnftnl.git / commitdiff
