diff options
Diffstat (limited to 'src/obj/tunnel.c')
| -rw-r--r-- | src/obj/tunnel.c | 551 |
1 files changed, 551 insertions, 0 deletions
diff --git a/src/obj/tunnel.c b/src/obj/tunnel.c new file mode 100644 index 0000000..d2503dc --- /dev/null +++ b/src/obj/tunnel.c @@ -0,0 +1,551 @@ +/* + * (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: + memcpy(&tun->id, data, sizeof(tun->id)); + break; + case NFTNL_OBJ_TUNNEL_IPV4_SRC: + memcpy(&tun->src_v4, data, sizeof(tun->src_v4)); + break; + case NFTNL_OBJ_TUNNEL_IPV4_DST: + memcpy(&tun->dst_v4, data, sizeof(tun->dst_v4)); + 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: + memcpy(&tun->flowlabel, data, sizeof(tun->flowlabel)); + break; + case NFTNL_OBJ_TUNNEL_SPORT: + memcpy(&tun->sport, data, sizeof(tun->sport)); + break; + case NFTNL_OBJ_TUNNEL_DPORT: + memcpy(&tun->dport, data, sizeof(tun->dport)); + break; + case NFTNL_OBJ_TUNNEL_FLAGS: + memcpy(&tun->tun_flags, data, sizeof(tun->tun_flags)); + break; + case NFTNL_OBJ_TUNNEL_TOS: + memcpy(&tun->tun_tos, data, sizeof(tun->tun_tos)); + break; + case NFTNL_OBJ_TUNNEL_TTL: + memcpy(&tun->tun_ttl, data, sizeof(tun->tun_ttl)); + break; + case NFTNL_OBJ_TUNNEL_VXLAN_GBP: + memcpy(&tun->u.tun_vxlan.gbp, data, sizeof(tun->u.tun_vxlan.gbp)); + break; + case NFTNL_OBJ_TUNNEL_ERSPAN_VERSION: + memcpy(&tun->u.tun_erspan.version, data, sizeof(tun->u.tun_erspan.version)); + break; + case NFTNL_OBJ_TUNNEL_ERSPAN_V1_INDEX: + memcpy(&tun->u.tun_erspan.u.v1_index, data, sizeof(tun->u.tun_erspan.u.v1_index)); + break; + case NFTNL_OBJ_TUNNEL_ERSPAN_V2_HWID: + memcpy(&tun->u.tun_erspan.u.v2.hwid, data, sizeof(tun->u.tun_erspan.u.v2.hwid)); + break; + case NFTNL_OBJ_TUNNEL_ERSPAN_V2_DIR: + memcpy(&tun->u.tun_erspan.u.v2.dir, data, sizeof(tun->u.tun_erspan.u.v2.dir)); + 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 & (1u << 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 & (1u << 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 |= (1u << 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_snprintf(char *buf, size_t len, + uint32_t flags, const struct nftnl_obj *e) +{ + struct nftnl_obj_tunnel *tun = nftnl_obj_data(e); + + return snprintf(buf, len, "id %u ", tun->id); +} + +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, + .output = nftnl_obj_tunnel_snprintf, +}; |