The branch main has been updated by pouria: URL: https://cgit.FreeBSD.org/src/commit/?id=9bfb78bf6357f8fc165f85a65f8a8e4048282401
commit 9bfb78bf6357f8fc165f85a65f8a8e4048282401 Author: Pouria Mousavizadeh Tehrani <[email protected]> AuthorDate: 2026-07-29 08:46:30 +0000 Commit: Pouria Mousavizadeh Tehrani <[email protected]> CommitDate: 2026-07-31 12:36:43 +0000 if_gif: Add netlink support with tests Migrate to new if_clone KPI and implement netlink support for gif(4). Also break GIFSOPTS ioctl logic out of gif_ioctl. Reviewed by: markj Differential Revision: https://reviews.freebsd.org/D57666 --- sys/net/if_gif.c | 304 +++++++++++++++++++++++++++++++++----- sys/netlink/route/interface.h | 10 ++ tests/sys/netlink/Makefile | 1 + tests/sys/netlink/test_rtnl_gif.c | 160 ++++++++++++++++++++ 4 files changed, 441 insertions(+), 34 deletions(-) diff --git a/sys/net/if_gif.c b/sys/net/if_gif.c index 71bc8e1b64ce..3b5a641af0c6 100644 --- a/sys/net/if_gif.c +++ b/sys/net/if_gif.c @@ -90,6 +90,12 @@ #include <net/if_bridgevar.h> #include <net/if_gif.h> +#include <netlink/netlink.h> +#include <netlink/netlink_ctl.h> +#include <netlink/netlink_var.h> +#include <netlink/netlink_route.h> +#include <netlink/route/route_var.h> + #include <security/mac/mac_framework.h> static const char gifname[] = "gif"; @@ -97,6 +103,7 @@ static const char gifname[] = "gif"; MALLOC_DEFINE(M_GIF, "gif", "Generic Tunnel Interface"); static struct sx gif_ioctl_sx; SX_SYSINIT(gif_ioctl_sx, &gif_ioctl_sx, "gif_ioctl"); +#define GIF_LOCK_ASSERT() sx_assert(&gif_ioctl_sx, SA_XLOCKED) void (*ng_gif_input_p)(struct ifnet *ifp, struct mbuf **mp, int af); void (*ng_gif_input_orphan_p)(struct ifnet *ifp, struct mbuf *m, int af); @@ -110,8 +117,18 @@ static void gif_delete_tunnel(struct gif_softc *); static int gif_ioctl(struct ifnet *, u_long, caddr_t); static int gif_transmit(struct ifnet *, struct mbuf *); static void gif_qflush(struct ifnet *); -static int gif_clone_create(struct if_clone *, int, caddr_t); -static void gif_clone_destroy(struct ifnet *); +static int gif_clone_create(struct if_clone *, char *, size_t, + struct ifc_data *, struct ifnet **); +static int gif_clone_destroy(struct if_clone *, struct ifnet *, uint32_t); +static int gif_clone_create_nl(struct if_clone *, char *, size_t, + struct ifc_data_nl *); +static int gif_clone_modify_nl(struct ifnet *, struct ifc_data_nl *); +static void gif_clone_dump_nl(struct ifnet *, struct nl_writer *); + +static int gif_set_addr_nl(struct gif_softc *, struct nl_pstate *, + struct sockaddr *, struct sockaddr *); +static int gif_set_flags_nl(struct gif_softc *, struct nl_pstate *, + uint32_t); VNET_DEFINE_STATIC(struct if_clone *, gif_cloner); #define V_gif_cloner VNET(gif_cloner) @@ -134,8 +151,145 @@ VNET_DEFINE_STATIC(int, max_gif_nesting) = MAX_GIF_NEST; SYSCTL_INT(_net_link_gif, OID_AUTO, max_nesting, CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(max_gif_nesting), 0, "Max nested tunnels"); +struct nl_parsed_gif { + struct sockaddr *ifla_local; + struct sockaddr *ifla_remote; + uint32_t ifla_flags; +}; + +#define _OUT(_field) offsetof(struct nl_parsed_gif, _field) +static const struct nlattr_parser nla_p_gif[] = { + { .type = IFLA_IPTUN_LOCAL, .off = _OUT(ifla_local), .cb = nlattr_get_ip }, + { .type = IFLA_IPTUN_REMOTE, .off = _OUT(ifla_remote), .cb = nlattr_get_ip }, + { .type = IFLA_IPTUN_FLAGS, .off = _OUT(ifla_flags), .cb = nlattr_get_uint32 }, +}; +#undef _OUT +NL_DECLARE_ATTR_PARSER(gif_modify_parser, nla_p_gif); + +static const struct nlhdr_parser *all_parsers[] = { + &gif_modify_parser, +}; + +static int +gif_clone_create_nl(struct if_clone *ifc, char *name, size_t len, + struct ifc_data_nl *ifd) +{ + struct ifc_data ifd_new = { + .flags = IFC_F_SYSSPACE, + .unit = ifd->unit, + }; + + return (gif_clone_create(ifc, name, len, &ifd_new, &ifd->ifp)); +} + +static int +gif_clone_modify_nl(struct ifnet *ifp, struct ifc_data_nl *ifd) +{ + struct gif_softc *sc; + struct nl_parsed_link *lattrs = ifd->lattrs; + struct nl_pstate *npt = ifd->npt; + struct nl_parsed_gif params = {}; + struct nlattr *attrs = lattrs->ifla_idata; + struct nlattr_bmask bm; + int error; + + if ((attrs == NULL) || + (nl_has_attr(ifd->bm, IFLA_LINKINFO) == 0)) { + error = nl_modify_ifp_generic(ifp, lattrs, ifd->bm, npt); + return (error); + } + + error = priv_check(curthread, PRIV_NET_GIF); + if (error) + return (error); + + nl_get_attrs_bmask_raw(NLA_DATA(attrs), NLA_DATA_LEN(attrs), &bm); + if ((error = nl_parse_nested(attrs, &gif_modify_parser, npt, ¶ms)) != 0) + return (error); + + sx_xlock(&gif_ioctl_sx); + sc = ifp->if_softc; + if (sc == NULL) + goto generic; + + if (nl_has_attr(&bm, IFLA_IPTUN_LOCAL) && nl_has_attr(&bm, IFLA_IPTUN_REMOTE)) + error = gif_set_addr_nl(sc, npt, params.ifla_local, params.ifla_remote); + else if (nl_has_attr(&bm, IFLA_IPTUN_LOCAL) || nl_has_attr(&bm, IFLA_IPTUN_REMOTE)) { + error = EINVAL; + nlmsg_report_err_msg(npt, "Specify both remote and local address together"); + } + + if (error == 0 && nl_has_attr(&bm, IFLA_IPTUN_FLAGS)) + error = gif_set_flags_nl(sc, npt, params.ifla_flags); + +generic: + sx_xunlock(&gif_ioctl_sx); + + if (error == 0) + error = nl_modify_ifp_generic(ifp, ifd->lattrs, ifd->bm, ifd->npt); + + return (error); +} + +static void +gif_clone_dump_nl(struct ifnet *ifp, struct nl_writer *nw) +{ + struct gif_softc *sc; + int off, off2; + + nlattr_add_u32(nw, IFLA_LINK, ifp->if_index); + nlattr_add_string(nw, IFLA_IFNAME, ifp->if_xname); + + off = nlattr_add_nested(nw, IFLA_LINKINFO); + if (off == 0) + return; + + nlattr_add_string(nw, IFLA_INFO_KIND, gifname); + off2 = nlattr_add_nested(nw, IFLA_INFO_DATA); + if (off2 == 0) { + nlattr_set_len(nw, off); + return; + } + + sx_slock(&gif_ioctl_sx); + sc = ifp->if_softc; + if (sc == NULL) + goto ret; + + if (sc->gif_family == AF_INET) { +#ifdef INET + struct in_aliasreq in; + if (in_gif_ioctl(sc, SIOCGIFPSRCADDR, (caddr_t)&in) == 0) + nlattr_add_in_addr(nw, IFLA_IPTUN_LOCAL, + &in.ifra_addr.sin_addr); + if (in_gif_ioctl(sc, SIOCGIFPDSTADDR, (caddr_t)&in) == 0) + nlattr_add_in_addr(nw, IFLA_IPTUN_REMOTE, + &in.ifra_addr.sin_addr); +#endif + } else if (sc->gif_family == AF_INET6) { +#ifdef INET6 + struct in6_aliasreq in6; + if (in6_gif_ioctl(sc, SIOCGIFPSRCADDR_IN6, (caddr_t)&in6) == 0) + nlattr_add_in6_addr(nw, IFLA_IPTUN_LOCAL, + &in6.ifra_addr.sin6_addr); + if (in6_gif_ioctl(sc, SIOCGIFPDSTADDR_IN6, (caddr_t)&in6) == 0) + nlattr_add_in6_addr(nw, IFLA_IPTUN_REMOTE, + &in6.ifra_addr.sin6_addr); +#endif + } + + nlattr_add_u32(nw, IFLA_IPTUN_FLAGS, sc->gif_options); + +ret: + nlattr_set_len(nw, off2); + nlattr_set_len(nw, off); + + sx_sunlock(&gif_ioctl_sx); +} + static int -gif_clone_create(struct if_clone *ifc, int unit, caddr_t params) +gif_clone_create(struct if_clone *ifc, char *name, size_t len, + struct ifc_data *ifd, struct ifnet **ifpp) { struct gif_softc *sc; @@ -143,7 +297,7 @@ gif_clone_create(struct if_clone *ifc, int unit, caddr_t params) sc->gif_fibnum = curthread->td_proc->p_fibnum; GIF2IFP(sc) = if_alloc(IFT_GIF); GIF2IFP(sc)->if_softc = sc; - if_initname(GIF2IFP(sc), gifname, unit); + if_initname(GIF2IFP(sc), gifname, ifd->unit); GIF2IFP(sc)->if_addrlen = 0; GIF2IFP(sc)->if_mtu = GIF_MTU; @@ -161,6 +315,7 @@ gif_clone_create(struct if_clone *ifc, int unit, caddr_t params) bpfattach(GIF2IFP(sc), DLT_NULL, sizeof(u_int32_t)); if (ng_gif_attach_p != NULL) (*ng_gif_attach_p)(GIF2IFP(sc)); + *ifpp = GIF2IFP(sc); return (0); } @@ -180,32 +335,42 @@ gif_reassign(struct ifnet *ifp, struct vnet *new_vnet __unused, } #endif /* VIMAGE */ -static void -gif_clone_destroy(struct ifnet *ifp) +static int +gif_clone_destroy(struct if_clone *ifc, struct ifnet *ifp, uint32_t flags) { struct gif_softc *sc; sx_xlock(&gif_ioctl_sx); sc = ifp->if_softc; gif_delete_tunnel(sc); + ifp->if_softc = NULL; + sx_xunlock(&gif_ioctl_sx); if (ng_gif_detach_p != NULL) (*ng_gif_detach_p)(ifp); bpfdetach(ifp); if_detach(ifp); - ifp->if_softc = NULL; - sx_xunlock(&gif_ioctl_sx); GIF_WAIT(); if_free(ifp); free(sc, M_GIF); + + return (0); } static void vnet_gif_init(const void *unused __unused) { - - V_gif_cloner = if_clone_simple(gifname, gif_clone_create, - gif_clone_destroy, 0); + struct if_clone_addreq_v2 req = { + .version = 2, + .flags = IFC_F_AUTOUNIT, + .match_f = NULL, + .create_f = gif_clone_create, + .destroy_f = gif_clone_destroy, + .create_nl_f = gif_clone_create_nl, + .modify_nl_f = gif_clone_modify_nl, + .dump_nl_f = gif_clone_dump_nl, + }; + V_gif_cloner = ifc_attach_cloner(gifname, (struct if_clone_addreq *)&req); #ifdef INET in_gif_init(); #endif @@ -220,7 +385,7 @@ static void vnet_gif_uninit(const void *unused __unused) { - if_clone_detach(V_gif_cloner); + ifc_detach_cloner(V_gif_cloner); #ifdef INET in_gif_uninit(); #endif @@ -237,6 +402,8 @@ gifmodevent(module_t mod, int type, void *data) switch (type) { case MOD_LOAD: + NL_VERIFY_PARSERS(all_parsers); + break; case MOD_UNLOAD: break; default: @@ -566,6 +733,37 @@ drop: if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); } +static int +gif_set_flags(struct gif_softc *sc, u_int opt) +{ + int error = 0; + + GIF_LOCK_ASSERT(); + + if (opt & ~GIF_OPTMASK) + return (EINVAL); + if (sc->gif_options == opt) + return (0); + + switch (sc->gif_family) { +#ifdef INET + case AF_INET: + error = in_gif_setopts(sc, opt); + break; +#endif +#ifdef INET6 + case AF_INET6: + error = in6_gif_setopts(sc, opt); + break; +#endif + default: + /* No need to invoke AF-handler */ + sc->gif_options = opt; + } + + return (error); +} + static int gif_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) { @@ -640,27 +838,7 @@ gif_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) sizeof(options)); if (error) break; - if (options & ~GIF_OPTMASK) { - error = EINVAL; - break; - } - if (sc->gif_options != options) { - switch (sc->gif_family) { -#ifdef INET - case AF_INET: - error = in_gif_setopts(sc, options); - break; -#endif -#ifdef INET6 - case AF_INET6: - error = in6_gif_setopts(sc, options); - break; -#endif - default: - /* No need to invoke AF-handler */ - sc->gif_options = options; - } - } + error = gif_set_flags(sc, options); break; default: error = EINVAL; @@ -687,7 +865,7 @@ static void gif_delete_tunnel(struct gif_softc *sc) { - sx_assert(&gif_ioctl_sx, SA_XLOCKED); + GIF_LOCK_ASSERT(); if (sc->gif_family != 0) { CK_LIST_REMOVE(sc, srchash); CK_LIST_REMOVE(sc, chain); @@ -699,3 +877,61 @@ gif_delete_tunnel(struct gif_softc *sc) GIF2IFP(sc)->if_drv_flags &= ~IFF_DRV_RUNNING; if_link_state_change(GIF2IFP(sc), LINK_STATE_DOWN); } + +static int +gif_set_addr_nl(struct gif_softc *sc, struct nl_pstate *npt, + struct sockaddr *src, struct sockaddr *dst) +{ +#if defined(INET) || defined(INET6) + union { +#ifdef INET + struct in_aliasreq in; +#endif +#ifdef INET6 + struct in6_aliasreq in6; +#endif + } aliasreq; +#endif + int error; + + /* XXX: this sanity check runs again in in[6]_gif_ioctl */ + if (src->sa_family != dst->sa_family) + error = EADDRNOTAVAIL; +#ifdef INET + else if (src->sa_family == AF_INET) { + memcpy(&aliasreq.in.ifra_addr, src, sizeof(struct sockaddr_in)); + memcpy(&aliasreq.in.ifra_dstaddr, dst, sizeof(struct sockaddr_in)); + error = in_gif_ioctl(sc, SIOCSIFPHYADDR, (caddr_t)&aliasreq.in); + } +#endif +#ifdef INET6 + else if (src->sa_family == AF_INET6) { + memcpy(&aliasreq.in6.ifra_addr, src, sizeof(struct sockaddr_in6)); + memcpy(&aliasreq.in6.ifra_dstaddr, dst, sizeof(struct sockaddr_in6)); + error = in6_gif_ioctl(sc, SIOCSIFPHYADDR_IN6, (caddr_t)&aliasreq.in6); + } +#endif + else + error = EAFNOSUPPORT; + + if (error == EADDRNOTAVAIL) + nlmsg_report_err_msg(npt, "address is invalid"); + if (error == EEXIST) + nlmsg_report_err_msg(npt, "remote and local addresses are the same"); + if (error == EAFNOSUPPORT) + nlmsg_report_err_msg(npt, "address family is not supported"); + + return (error); +} + +static int +gif_set_flags_nl(struct gif_softc *sc, struct nl_pstate *npt, uint32_t opt) +{ + int error; + + error = gif_set_flags(sc, opt); + if (error == EINVAL) + nlmsg_report_err_msg(npt, "gif flags are invalid"); + + return (error); +} diff --git a/sys/netlink/route/interface.h b/sys/netlink/route/interface.h index e6aef3d702d8..c018a0adb20d 100644 --- a/sys/netlink/route/interface.h +++ b/sys/netlink/route/interface.h @@ -272,6 +272,16 @@ struct ifla_vlan_flags { uint32_t mask; }; +/* IFLA_INFO_DATA gif attributes */ +enum { + IFLA_IPTUN_UNSPEC, + IFLA_IPTUN_LOCAL, + IFLA_IPTUN_REMOTE, + IFLA_IPTUN_FLAGS, + __IFLA_IPTUN_MAX, +}; +#define IFLA_IPTUN_MAX (__IFLA_IPTUN_MAX - 1) + /* IFLA_INFO_DATA gre attributes */ enum { IFLA_GRE_UNSPEC, diff --git a/tests/sys/netlink/Makefile b/tests/sys/netlink/Makefile index 89dba16c823c..5a9ba359078a 100644 --- a/tests/sys/netlink/Makefile +++ b/tests/sys/netlink/Makefile @@ -6,6 +6,7 @@ TESTSDIR= ${TESTSBASE}/sys/netlink ATF_TESTS_C+= netlink_socket ATF_TESTS_C+= test_snl test_snl_generic ATF_TESTS_C+= test_rtnl_gre +ATF_TESTS_C+= test_rtnl_gif ATF_TESTS_C+= test_rtnl_route ATF_TESTS_PYTEST += test_nl_core.py ATF_TESTS_PYTEST += test_rtnl_iface.py diff --git a/tests/sys/netlink/test_rtnl_gif.c b/tests/sys/netlink/test_rtnl_gif.c new file mode 100644 index 000000000000..c29f3911036f --- /dev/null +++ b/tests/sys/netlink/test_rtnl_gif.c @@ -0,0 +1,160 @@ +/* + * Copyright (c) 2026 Pouria Mousavizadeh Tehrani <[email protected]> + * + * SPDX-License-Identifier: BSD-2-Clause + */ + +#include <sys/param.h> +#include <sys/module.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <net/if_gif.h> + +#include <netlink/netlink.h> +#include <netlink/netlink_route.h> +#include <netlink/netlink_snl.h> +#include <netlink/netlink_snl_route.h> +#include <netlink/netlink_snl_route_compat.h> +#include <netlink/netlink_snl_route_parsers.h> + +#include <atf-c.h> + +struct nl_parsed_gif { + struct sockaddr *ifla_local; + struct sockaddr *ifla_remote; + uint32_t ifla_flags; +}; + +struct nla_gif_info { + const char *kind; + struct nl_parsed_gif data; +}; + +struct nla_gif_link { + uint32_t ifi_index; + struct nla_gif_info linkinfo; +}; + +#define _OUT(_field) offsetof(struct nl_parsed_gif, _field) +static const struct snl_attr_parser nla_p_gif[] = { + { .type = IFLA_IPTUN_LOCAL, .off = _OUT(ifla_local), .cb = snl_attr_get_ip }, + { .type = IFLA_IPTUN_REMOTE, .off = _OUT(ifla_remote), .cb = snl_attr_get_ip }, + { .type = IFLA_IPTUN_FLAGS, .off = _OUT(ifla_flags), .cb = snl_attr_get_uint32 }, +}; +#undef _OUT +SNL_DECLARE_ATTR_PARSER(gif_linkinfo_data_parser, nla_p_gif); + +#define _OUT(_field) offsetof(struct nla_gif_info, _field) +static const struct snl_attr_parser ap_gif_linkinfo[] = { + { .type = IFLA_INFO_KIND, .off = _OUT(kind), .cb = snl_attr_get_string }, + { .type = IFLA_INFO_DATA, .off = _OUT(data), + .arg = &gif_linkinfo_data_parser, .cb = snl_attr_get_nested }, +}; +#undef _OUT +SNL_DECLARE_ATTR_PARSER(gif_linkinfo_parser, ap_gif_linkinfo); + +#define _IN(_field) offsetof(struct ifinfomsg, _field) +#define _OUT(_field) offsetof(struct nla_gif_link, _field) +static const struct snl_attr_parser ap_gif_link[] = { + { .type = IFLA_LINKINFO, .off = _OUT(linkinfo), + .arg = &gif_linkinfo_parser, .cb = snl_attr_get_nested }, +}; + +static const struct snl_field_parser fp_gif_link[] = { + { .off_in = _IN(ifi_index), .off_out = _OUT(ifi_index), .cb = snl_field_get_uint32 }, +}; +#undef _IN +#undef _OUT +SNL_DECLARE_PARSER(gif_parser, struct ifinfomsg, fp_gif_link, ap_gif_link); + +ATF_TC(test_rtnl_gif); +ATF_TC_HEAD(test_rtnl_gif, tc) +{ + atf_tc_set_md_var(tc, "descr", "test gif interface using netlink"); + atf_tc_set_md_var(tc, "require.user", "root"); + atf_tc_set_md_var(tc, "require.kmods", "netlink if_gif"); +} + +ATF_TC_BODY(test_rtnl_gif, tc) +{ + struct snl_state ss; + struct snl_writer nw; + struct nlmsghdr *hdr, *rx_hdr; + struct in_addr src, dst; + struct nla_gif_link lattrs = {}; + struct nl_parsed_gif attrs = {}; + struct snl_errmsg_data e = {}; + struct ifinfomsg *ifmsg; + int off, off2; + + ATF_REQUIRE_MSG(snl_init(&ss, NETLINK_ROUTE), "snl_init() failed"); + + /* Create gif interface */ + snl_init_writer(&ss, &nw); + ATF_REQUIRE((hdr = snl_create_msg_request(&nw, RTM_NEWLINK)) != NULL); + hdr->nlmsg_flags |= (NLM_F_CREATE | NLM_F_EXCL | NLM_F_REQUEST | NLM_F_ACK); + snl_reserve_msg_object(&nw, struct ifinfomsg); + + /* Create parameters */ + snl_add_msg_attr_string(&nw, IFLA_IFNAME, "gif10"); + off = snl_add_msg_attr_nested(&nw, IFLA_LINKINFO); + snl_add_msg_attr_string(&nw, IFLA_INFO_KIND, "gif"); + off2 = snl_add_msg_attr_nested(&nw, IFLA_INFO_DATA); + + inet_pton(AF_INET, "127.0.0.1", &src); + inet_pton(AF_INET, "127.0.0.2", &dst); + snl_add_msg_attr_ip4(&nw, IFLA_IPTUN_LOCAL, &src); + snl_add_msg_attr_ip4(&nw, IFLA_IPTUN_REMOTE, &dst); + snl_add_msg_attr_u32(&nw, IFLA_IPTUN_FLAGS, (GIF_NOCLAMP | GIF_IGNORE_SOURCE)); + + snl_end_attr_nested(&nw, off2); + snl_end_attr_nested(&nw, off); + + ATF_REQUIRE((hdr = snl_finalize_msg(&nw)) != NULL); + ATF_REQUIRE(snl_send_message(&ss, hdr)); + ATF_REQUIRE((rx_hdr = snl_read_reply(&ss, hdr->nlmsg_seq)) != NULL); + ATF_REQUIRE(snl_parse_errmsg(&ss, rx_hdr, &e)); + ATF_REQUIRE_INTEQ(e.error, 0); + + /* Dump gif interface */ + snl_init_writer(&ss, &nw); + ATF_REQUIRE((hdr = snl_create_msg_request(&nw, RTM_GETLINK)) != NULL); + hdr->nlmsg_flags |= NLM_F_DUMP; + snl_reserve_msg_object(&nw, struct ifinfomsg); + snl_add_msg_attr_string(&nw, IFLA_IFNAME, "gif10"); + off = snl_add_msg_attr_nested(&nw, IFLA_LINKINFO); + snl_add_msg_attr_string(&nw, IFLA_INFO_KIND, "gif"); + snl_end_attr_nested(&nw, off); + + ATF_REQUIRE((hdr = snl_finalize_msg(&nw)) != NULL); + ATF_REQUIRE(snl_send_message(&ss, hdr)); + + /* Check parameters */ + ATF_REQUIRE((rx_hdr = snl_read_reply(&ss, hdr->nlmsg_seq)) != NULL); + ATF_CHECK(snl_parse_nlmsg(&ss, rx_hdr, &gif_parser, &lattrs)); + attrs = lattrs.linkinfo.data; + ATF_CHECK_STREQ(lattrs.linkinfo.kind, "gif"); + ATF_CHECK_INTEQ(attrs.ifla_flags, (GIF_NOCLAMP | GIF_IGNORE_SOURCE)); + + /* Delete gif interface */ + snl_init_writer(&ss, &nw); + ATF_REQUIRE((hdr = snl_create_msg_request(&nw, RTM_DELLINK)) != NULL); + hdr->nlmsg_flags |= (NLM_F_ACK | NLM_F_REQUEST); + ATF_REQUIRE((ifmsg = snl_reserve_msg_object(&nw, struct ifinfomsg)) != NULL); + ifmsg->ifi_index = lattrs.ifi_index; + ATF_REQUIRE((hdr = snl_finalize_msg(&nw)) != NULL); + ATF_REQUIRE(snl_send_message(&ss, hdr)); + ATF_REQUIRE((rx_hdr = snl_read_reply(&ss, hdr->nlmsg_seq)) != NULL); + ATF_REQUIRE(snl_parse_errmsg(&ss, rx_hdr, &e)); + ATF_REQUIRE_INTEQ(e.error, 0); +} + +ATF_TP_ADD_TCS(tp) +{ + ATF_TP_ADD_TC(tp, test_rtnl_gif); + + return (atf_no_error()); +} +
