| File: | net/if_veb.c |
| Warning: | line 1060, column 2 Value stored to 'eh' is never read |
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| 1 | /* $OpenBSD: if_veb.c,v 1.25 2022/01/04 06:32:39 yasuoka Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 2021 David Gwynne <dlg@openbsd.org> |
| 5 | * |
| 6 | * Permission to use, copy, modify, and distribute this software for any |
| 7 | * purpose with or without fee is hereby granted, provided that the above |
| 8 | * copyright notice and this permission notice appear in all copies. |
| 9 | * |
| 10 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 11 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 12 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 13 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 14 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 15 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 16 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 17 | */ |
| 18 | |
| 19 | #include "bpfilter.h" |
| 20 | #include "pf.h" |
| 21 | #include "vlan.h" |
| 22 | |
| 23 | #include <sys/param.h> |
| 24 | #include <sys/kernel.h> |
| 25 | #include <sys/malloc.h> |
| 26 | #include <sys/mbuf.h> |
| 27 | #include <sys/queue.h> |
| 28 | #include <sys/socket.h> |
| 29 | #include <sys/sockio.h> |
| 30 | #include <sys/systm.h> |
| 31 | #include <sys/syslog.h> |
| 32 | #include <sys/rwlock.h> |
| 33 | #include <sys/percpu.h> |
| 34 | #include <sys/smr.h> |
| 35 | #include <sys/task.h> |
| 36 | #include <sys/pool.h> |
| 37 | |
| 38 | #include <net/if.h> |
| 39 | #include <net/if_dl.h> |
| 40 | #include <net/if_types.h> |
| 41 | |
| 42 | #include <netinet/in.h> |
| 43 | #include <netinet/ip.h> |
| 44 | #include <netinet/if_ether.h> |
| 45 | |
| 46 | #ifdef INET61 |
| 47 | #include <netinet6/in6_var.h> |
| 48 | #include <netinet/ip6.h> |
| 49 | #include <netinet6/ip6_var.h> |
| 50 | #endif |
| 51 | |
| 52 | #if 0 && defined(IPSEC1) |
| 53 | /* |
| 54 | * IPsec handling is disabled in veb until getting and using tdbs is mpsafe. |
| 55 | */ |
| 56 | #include <netinet/ip_ipsp.h> |
| 57 | #include <net/if_enc.h> |
| 58 | #endif |
| 59 | |
| 60 | #include <net/if_bridge.h> |
| 61 | #include <net/if_etherbridge.h> |
| 62 | |
| 63 | #if NBPFILTER1 > 0 |
| 64 | #include <net/bpf.h> |
| 65 | #endif |
| 66 | |
| 67 | #if NPF1 > 0 |
| 68 | #include <net/pfvar.h> |
| 69 | #endif |
| 70 | |
| 71 | #if NVLAN1 > 0 |
| 72 | #include <net/if_vlan_var.h> |
| 73 | #endif |
| 74 | |
| 75 | /* SIOCBRDGIFFLGS, SIOCBRDGIFFLGS */ |
| 76 | #define VEB_IFBIF_FLAGS(0x0001|0x0002|0x0004) (IFBIF_LEARNING0x0001|IFBIF_DISCOVER0x0002|IFBIF_BLOCKNONIP0x0004) |
| 77 | |
| 78 | struct veb_rule { |
| 79 | TAILQ_ENTRY(veb_rule)struct { struct veb_rule *tqe_next; struct veb_rule **tqe_prev ; } vr_entry; |
| 80 | SMR_TAILQ_ENTRY(veb_rule)struct { struct veb_rule *smr_tqe_next; struct veb_rule **smr_tqe_prev ; } vr_lentry[2]; |
| 81 | |
| 82 | uint16_t vr_flags; |
| 83 | #define VEB_R_F_IN(1U << 0) (1U << 0) |
| 84 | #define VEB_R_F_OUT(1U << 1) (1U << 1) |
| 85 | #define VEB_R_F_SRC(1U << 2) (1U << 2) |
| 86 | #define VEB_R_F_DST(1U << 3) (1U << 3) |
| 87 | |
| 88 | #define VEB_R_F_ARP(1U << 4) (1U << 4) |
| 89 | #define VEB_R_F_RARP(1U << 5) (1U << 5) |
| 90 | #define VEB_R_F_SHA(1U << 6) (1U << 6) |
| 91 | #define VEB_R_F_SPA(1U << 7) (1U << 7) |
| 92 | #define VEB_R_F_THA(1U << 8) (1U << 8) |
| 93 | #define VEB_R_F_TPA(1U << 9) (1U << 9) |
| 94 | uint16_t vr_arp_op; |
| 95 | |
| 96 | uint64_t vr_src; |
| 97 | uint64_t vr_dst; |
| 98 | struct ether_addr vr_arp_sha; |
| 99 | struct ether_addr vr_arp_tha; |
| 100 | struct in_addr vr_arp_spa; |
| 101 | struct in_addr vr_arp_tpa; |
| 102 | |
| 103 | unsigned int vr_action; |
| 104 | #define VEB_R_MATCH0 0 |
| 105 | #define VEB_R_PASS1 1 |
| 106 | #define VEB_R_BLOCK2 2 |
| 107 | |
| 108 | int vr_pftag; |
| 109 | }; |
| 110 | |
| 111 | TAILQ_HEAD(veb_rules, veb_rule)struct veb_rules { struct veb_rule *tqh_first; struct veb_rule **tqh_last; }; |
| 112 | SMR_TAILQ_HEAD(veb_rule_list, veb_rule)struct veb_rule_list { struct veb_rule *smr_tqh_first; struct veb_rule **smr_tqh_last; }; |
| 113 | |
| 114 | struct veb_softc; |
| 115 | |
| 116 | struct veb_port { |
| 117 | struct ifnet *p_ifp0; |
| 118 | struct refcnt p_refs; |
| 119 | |
| 120 | int (*p_enqueue)(struct ifnet *, struct mbuf *); |
| 121 | |
| 122 | int (*p_ioctl)(struct ifnet *, u_long, caddr_t); |
| 123 | int (*p_output)(struct ifnet *, struct mbuf *, struct sockaddr *, |
| 124 | struct rtentry *); |
| 125 | |
| 126 | struct task p_ltask; |
| 127 | struct task p_dtask; |
| 128 | |
| 129 | struct veb_softc *p_veb; |
| 130 | |
| 131 | struct ether_brport p_brport; |
| 132 | |
| 133 | unsigned int p_link_state; |
| 134 | unsigned int p_bif_flags; |
| 135 | uint32_t p_protected; |
| 136 | |
| 137 | struct veb_rules p_vrl; |
| 138 | unsigned int p_nvrl; |
| 139 | struct veb_rule_list p_vr_list[2]; |
| 140 | #define VEB_RULE_LIST_OUT0 0 |
| 141 | #define VEB_RULE_LIST_IN1 1 |
| 142 | |
| 143 | SMR_TAILQ_ENTRY(veb_port)struct { struct veb_port *smr_tqe_next; struct veb_port **smr_tqe_prev ; } p_entry; |
| 144 | }; |
| 145 | |
| 146 | struct veb_ports { |
| 147 | SMR_TAILQ_HEAD(, veb_port)struct { struct veb_port *smr_tqh_first; struct veb_port **smr_tqh_last ; } l_list; |
| 148 | unsigned int l_count; |
| 149 | }; |
| 150 | |
| 151 | struct veb_softc { |
| 152 | struct ifnet sc_if; |
| 153 | unsigned int sc_dead; |
| 154 | |
| 155 | struct etherbridge sc_eb; |
| 156 | |
| 157 | struct rwlock sc_rule_lock; |
| 158 | struct veb_ports sc_ports; |
| 159 | struct veb_ports sc_spans; |
| 160 | }; |
| 161 | |
| 162 | #define DPRINTF(_sc, fmt...)do { if ((((_sc)->sc_if.if_flags) & (0x4))) printf(fmt ...); } while (0) do { \ |
| 163 | if (ISSET((_sc)->sc_if.if_flags, IFF_DEBUG)(((_sc)->sc_if.if_flags) & (0x4))) \ |
| 164 | printf(fmt); \ |
| 165 | } while (0) |
| 166 | |
| 167 | static int veb_clone_create(struct if_clone *, int); |
| 168 | static int veb_clone_destroy(struct ifnet *); |
| 169 | |
| 170 | static int veb_ioctl(struct ifnet *, u_long, caddr_t); |
| 171 | static void veb_input(struct ifnet *, struct mbuf *); |
| 172 | static int veb_enqueue(struct ifnet *, struct mbuf *); |
| 173 | static int veb_output(struct ifnet *, struct mbuf *, struct sockaddr *, |
| 174 | struct rtentry *); |
| 175 | static void veb_start(struct ifqueue *); |
| 176 | |
| 177 | static int veb_up(struct veb_softc *); |
| 178 | static int veb_down(struct veb_softc *); |
| 179 | static int veb_iff(struct veb_softc *); |
| 180 | |
| 181 | static void veb_p_linkch(void *); |
| 182 | static void veb_p_detach(void *); |
| 183 | static int veb_p_ioctl(struct ifnet *, u_long, caddr_t); |
| 184 | static int veb_p_output(struct ifnet *, struct mbuf *, |
| 185 | struct sockaddr *, struct rtentry *); |
| 186 | |
| 187 | static void veb_p_dtor(struct veb_softc *, struct veb_port *, |
| 188 | const char *); |
| 189 | static int veb_add_port(struct veb_softc *, |
| 190 | const struct ifbreq *, unsigned int); |
| 191 | static int veb_del_port(struct veb_softc *, |
| 192 | const struct ifbreq *, unsigned int); |
| 193 | static int veb_port_list(struct veb_softc *, struct ifbifconf *); |
| 194 | static int veb_port_set_flags(struct veb_softc *, struct ifbreq *); |
| 195 | static int veb_port_get_flags(struct veb_softc *, struct ifbreq *); |
| 196 | static int veb_port_set_protected(struct veb_softc *, |
| 197 | const struct ifbreq *); |
| 198 | static int veb_add_addr(struct veb_softc *, const struct ifbareq *); |
| 199 | static int veb_del_addr(struct veb_softc *, const struct ifbareq *); |
| 200 | |
| 201 | static int veb_rule_add(struct veb_softc *, const struct ifbrlreq *); |
| 202 | static int veb_rule_list_flush(struct veb_softc *, |
| 203 | const struct ifbrlreq *); |
| 204 | static void veb_rule_list_free(struct veb_rule *); |
| 205 | static int veb_rule_list_get(struct veb_softc *, struct ifbrlconf *); |
| 206 | |
| 207 | static int veb_eb_port_cmp(void *, void *, void *); |
| 208 | static void *veb_eb_port_take(void *, void *); |
| 209 | static void veb_eb_port_rele(void *, void *); |
| 210 | static size_t veb_eb_port_ifname(void *, char *, size_t, void *); |
| 211 | static void veb_eb_port_sa(void *, struct sockaddr_storage *, void *); |
| 212 | |
| 213 | static void veb_eb_brport_take(void *); |
| 214 | static void veb_eb_brport_rele(void *); |
| 215 | |
| 216 | static const struct etherbridge_ops veb_etherbridge_ops = { |
| 217 | veb_eb_port_cmp, |
| 218 | veb_eb_port_take, |
| 219 | veb_eb_port_rele, |
| 220 | veb_eb_port_ifname, |
| 221 | veb_eb_port_sa, |
| 222 | }; |
| 223 | |
| 224 | static struct if_clone veb_cloner = |
| 225 | IF_CLONE_INITIALIZER("veb", veb_clone_create, veb_clone_destroy){ .ifc_list = { ((void *)0), ((void *)0) }, .ifc_name = "veb" , .ifc_namelen = sizeof("veb") - 1, .ifc_create = veb_clone_create , .ifc_destroy = veb_clone_destroy, }; |
| 226 | |
| 227 | static struct pool veb_rule_pool; |
| 228 | |
| 229 | static int vport_clone_create(struct if_clone *, int); |
| 230 | static int vport_clone_destroy(struct ifnet *); |
| 231 | |
| 232 | struct vport_softc { |
| 233 | struct arpcom sc_ac; |
| 234 | unsigned int sc_dead; |
| 235 | }; |
| 236 | |
| 237 | static int vport_if_enqueue(struct ifnet *, struct mbuf *); |
| 238 | |
| 239 | static int vport_ioctl(struct ifnet *, u_long, caddr_t); |
| 240 | static int vport_enqueue(struct ifnet *, struct mbuf *); |
| 241 | static void vport_start(struct ifqueue *); |
| 242 | |
| 243 | static int vport_up(struct vport_softc *); |
| 244 | static int vport_down(struct vport_softc *); |
| 245 | static int vport_iff(struct vport_softc *); |
| 246 | |
| 247 | static struct if_clone vport_cloner = |
| 248 | IF_CLONE_INITIALIZER("vport", vport_clone_create, vport_clone_destroy){ .ifc_list = { ((void *)0), ((void *)0) }, .ifc_name = "vport" , .ifc_namelen = sizeof("vport") - 1, .ifc_create = vport_clone_create , .ifc_destroy = vport_clone_destroy, }; |
| 249 | |
| 250 | void |
| 251 | vebattach(int count) |
| 252 | { |
| 253 | if_clone_attach(&veb_cloner); |
| 254 | if_clone_attach(&vport_cloner); |
| 255 | } |
| 256 | |
| 257 | static int |
| 258 | veb_clone_create(struct if_clone *ifc, int unit) |
| 259 | { |
| 260 | struct veb_softc *sc; |
| 261 | struct ifnet *ifp; |
| 262 | int error; |
| 263 | |
| 264 | if (veb_rule_pool.pr_size == 0) { |
| 265 | pool_init(&veb_rule_pool, sizeof(struct veb_rule), |
| 266 | 0, IPL_SOFTNET0x5, 0, "vebrpl", NULL((void *)0)); |
| 267 | } |
| 268 | |
| 269 | sc = malloc(sizeof(*sc), M_DEVBUF2, M_WAITOK0x0001|M_ZERO0x0008|M_CANFAIL0x0004); |
| 270 | if (sc == NULL((void *)0)) |
| 271 | return (ENOMEM12); |
| 272 | |
| 273 | rw_init(&sc->sc_rule_lock, "vebrlk")_rw_init_flags(&sc->sc_rule_lock, "vebrlk", 0, ((void * )0)); |
| 274 | SMR_TAILQ_INIT(&sc->sc_ports.l_list)do { (&sc->sc_ports.l_list)->smr_tqh_first = ((void *)0); (&sc->sc_ports.l_list)->smr_tqh_last = & (&sc->sc_ports.l_list)->smr_tqh_first; } while (0); |
| 275 | SMR_TAILQ_INIT(&sc->sc_spans.l_list)do { (&sc->sc_spans.l_list)->smr_tqh_first = ((void *)0); (&sc->sc_spans.l_list)->smr_tqh_last = & (&sc->sc_spans.l_list)->smr_tqh_first; } while (0); |
| 276 | |
| 277 | ifp = &sc->sc_if; |
| 278 | |
| 279 | snprintf(ifp->if_xname, sizeof(ifp->if_xname), "%s%d", |
| 280 | ifc->ifc_name, unit); |
| 281 | |
| 282 | error = etherbridge_init(&sc->sc_eb, ifp->if_xname, |
| 283 | &veb_etherbridge_ops, sc); |
| 284 | if (error != 0) { |
| 285 | free(sc, M_DEVBUF2, sizeof(*sc)); |
| 286 | return (error); |
| 287 | } |
| 288 | |
| 289 | ifp->if_softc = sc; |
| 290 | ifp->if_typeif_data.ifi_type = IFT_BRIDGE0xd1; |
| 291 | ifp->if_hdrlenif_data.ifi_hdrlen = ETHER_HDR_LEN((6 * 2) + 2); |
| 292 | ifp->if_hardmtu = ETHER_MAX_HARDMTU_LEN65435; |
| 293 | ifp->if_ioctl = veb_ioctl; |
| 294 | ifp->if_input = veb_input; |
| 295 | ifp->if_output = veb_output; |
| 296 | ifp->if_enqueue = veb_enqueue; |
| 297 | ifp->if_qstart = veb_start; |
| 298 | ifp->if_flags = IFF_BROADCAST0x2 | IFF_SIMPLEX0x800 | IFF_MULTICAST0x8000; |
| 299 | ifp->if_xflags = IFXF_CLONED0x2 | IFXF_MPSAFE0x1; |
| 300 | |
| 301 | if_counters_alloc(ifp); |
| 302 | if_attach(ifp); |
| 303 | |
| 304 | if_alloc_sadl(ifp); |
| 305 | |
| 306 | #if NBPFILTER1 > 0 |
| 307 | bpfattach(&ifp->if_bpf, ifp, DLT_EN10MB1, ETHER_HDR_LEN((6 * 2) + 2)); |
| 308 | #endif |
| 309 | |
| 310 | return (0); |
| 311 | } |
| 312 | |
| 313 | static int |
| 314 | veb_clone_destroy(struct ifnet *ifp) |
| 315 | { |
| 316 | struct veb_softc *sc = ifp->if_softc; |
| 317 | struct veb_port *p, *np; |
| 318 | |
| 319 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
| 320 | sc->sc_dead = 1; |
| 321 | |
| 322 | if (ISSET(ifp->if_flags, IFF_RUNNING)((ifp->if_flags) & (0x40))) |
| 323 | veb_down(sc); |
| 324 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
| 325 | |
| 326 | if_detach(ifp); |
| 327 | |
| 328 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
| 329 | SMR_TAILQ_FOREACH_SAFE_LOCKED(p, &sc->sc_ports.l_list, p_entry, np)for ((p) = ((&sc->sc_ports.l_list)->smr_tqh_first); (p) && ((np) = ((p)->p_entry.smr_tqe_next), 1); ( p) = (np)) |
| 330 | veb_p_dtor(sc, p, "destroy"); |
| 331 | SMR_TAILQ_FOREACH_SAFE_LOCKED(p, &sc->sc_spans.l_list, p_entry, np)for ((p) = ((&sc->sc_spans.l_list)->smr_tqh_first); (p) && ((np) = ((p)->p_entry.smr_tqe_next), 1); ( p) = (np)) |
| 332 | veb_p_dtor(sc, p, "destroy"); |
| 333 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
| 334 | |
| 335 | etherbridge_destroy(&sc->sc_eb); |
| 336 | |
| 337 | free(sc, M_DEVBUF2, sizeof(*sc)); |
| 338 | |
| 339 | return (0); |
| 340 | } |
| 341 | |
| 342 | static struct mbuf * |
| 343 | veb_span_input(struct ifnet *ifp0, struct mbuf *m, uint64_t dst, void *brport) |
| 344 | { |
| 345 | m_freem(m); |
| 346 | return (NULL((void *)0)); |
| 347 | } |
| 348 | |
| 349 | static void |
| 350 | veb_span(struct veb_softc *sc, struct mbuf *m0) |
| 351 | { |
| 352 | struct veb_port *p; |
| 353 | struct ifnet *ifp0; |
| 354 | struct mbuf *m; |
| 355 | |
| 356 | smr_read_enter(); |
| 357 | SMR_TAILQ_FOREACH(p, &sc->sc_spans.l_list, p_entry)for((p) = ({ typeof(*&(&sc->sc_spans.l_list)->smr_tqh_first ) __tmp = *(volatile typeof(*&(&sc->sc_spans.l_list )->smr_tqh_first) *)&(*&(&sc->sc_spans.l_list )->smr_tqh_first); membar_datadep_consumer(); __tmp; }); ( p)!= ((void *)0); (p) = ({ typeof(*&(p)->p_entry.smr_tqe_next ) __tmp = *(volatile typeof(*&(p)->p_entry.smr_tqe_next ) *)&(*&(p)->p_entry.smr_tqe_next); membar_datadep_consumer (); __tmp; })) { |
| 358 | ifp0 = p->p_ifp0; |
| 359 | if (!ISSET(ifp0->if_flags, IFF_RUNNING)((ifp0->if_flags) & (0x40))) |
| 360 | continue; |
| 361 | |
| 362 | m = m_dup_pkt(m0, max_linkhdr + ETHER_ALIGN2, M_NOWAIT0x0002); |
| 363 | if (m == NULL((void *)0)) { |
| 364 | /* XXX count error */ |
| 365 | continue; |
| 366 | } |
| 367 | |
| 368 | if_enqueue(ifp0, m); /* XXX count error */ |
| 369 | } |
| 370 | smr_read_leave(); |
| 371 | } |
| 372 | |
| 373 | static int |
| 374 | veb_ip_filter(const struct mbuf *m) |
| 375 | { |
| 376 | const struct ether_header *eh; |
| 377 | |
| 378 | eh = mtod(m, struct ether_header *)((struct ether_header *)((m)->m_hdr.mh_data)); |
| 379 | switch (ntohs(eh->ether_type)(__uint16_t)(__builtin_constant_p(eh->ether_type) ? (__uint16_t )(((__uint16_t)(eh->ether_type) & 0xffU) << 8 | ( (__uint16_t)(eh->ether_type) & 0xff00U) >> 8) : __swap16md (eh->ether_type))) { |
| 380 | case ETHERTYPE_IP0x0800: |
| 381 | case ETHERTYPE_ARP0x0806: |
| 382 | case ETHERTYPE_REVARP0x8035: |
| 383 | case ETHERTYPE_IPV60x86DD: |
| 384 | return (0); |
| 385 | default: |
| 386 | break; |
| 387 | } |
| 388 | |
| 389 | return (1); |
| 390 | } |
| 391 | |
| 392 | static int |
| 393 | veb_vlan_filter(const struct mbuf *m) |
| 394 | { |
| 395 | const struct ether_header *eh; |
| 396 | |
| 397 | eh = mtod(m, struct ether_header *)((struct ether_header *)((m)->m_hdr.mh_data)); |
| 398 | switch (ntohs(eh->ether_type)(__uint16_t)(__builtin_constant_p(eh->ether_type) ? (__uint16_t )(((__uint16_t)(eh->ether_type) & 0xffU) << 8 | ( (__uint16_t)(eh->ether_type) & 0xff00U) >> 8) : __swap16md (eh->ether_type))) { |
| 399 | case ETHERTYPE_VLAN0x8100: |
| 400 | case ETHERTYPE_QINQ0x88A8: |
| 401 | return (1); |
| 402 | default: |
| 403 | break; |
| 404 | } |
| 405 | |
| 406 | return (0); |
| 407 | } |
| 408 | |
| 409 | static int |
| 410 | veb_rule_arp_match(const struct veb_rule *vr, struct mbuf *m) |
| 411 | { |
| 412 | struct ether_header *eh; |
| 413 | struct ether_arp ea; |
| 414 | |
| 415 | eh = mtod(m, struct ether_header *)((struct ether_header *)((m)->m_hdr.mh_data)); |
| 416 | |
| 417 | if (eh->ether_type != htons(ETHERTYPE_ARP)(__uint16_t)(__builtin_constant_p(0x0806) ? (__uint16_t)(((__uint16_t )(0x0806) & 0xffU) << 8 | ((__uint16_t)(0x0806) & 0xff00U) >> 8) : __swap16md(0x0806))) |
| 418 | return (0); |
| 419 | if (m->m_pkthdrM_dat.MH.MH_pkthdr.len < sizeof(*eh) + sizeof(ea)) |
| 420 | return (0); |
| 421 | |
| 422 | m_copydata(m, sizeof(*eh), sizeof(ea), (caddr_t)&ea); |
| 423 | |
| 424 | if (ea.arp_hrdea_hdr.ar_hrd != htons(ARPHRD_ETHER)(__uint16_t)(__builtin_constant_p(1) ? (__uint16_t)(((__uint16_t )(1) & 0xffU) << 8 | ((__uint16_t)(1) & 0xff00U ) >> 8) : __swap16md(1)) || |
| 425 | ea.arp_proea_hdr.ar_pro != htons(ETHERTYPE_IP)(__uint16_t)(__builtin_constant_p(0x0800) ? (__uint16_t)(((__uint16_t )(0x0800) & 0xffU) << 8 | ((__uint16_t)(0x0800) & 0xff00U) >> 8) : __swap16md(0x0800)) || |
| 426 | ea.arp_hlnea_hdr.ar_hln != ETHER_ADDR_LEN6 || |
| 427 | ea.arp_plnea_hdr.ar_pln != sizeof(struct in_addr)) |
| 428 | return (0); |
| 429 | |
| 430 | if (ISSET(vr->vr_flags, VEB_R_F_ARP)((vr->vr_flags) & ((1U << 4)))) { |
| 431 | if (ea.arp_opea_hdr.ar_op != htons(ARPOP_REQUEST)(__uint16_t)(__builtin_constant_p(1) ? (__uint16_t)(((__uint16_t )(1) & 0xffU) << 8 | ((__uint16_t)(1) & 0xff00U ) >> 8) : __swap16md(1)) && |
| 432 | ea.arp_opea_hdr.ar_op != htons(ARPOP_REPLY)(__uint16_t)(__builtin_constant_p(2) ? (__uint16_t)(((__uint16_t )(2) & 0xffU) << 8 | ((__uint16_t)(2) & 0xff00U ) >> 8) : __swap16md(2))) |
| 433 | return (0); |
| 434 | } |
| 435 | if (ISSET(vr->vr_flags, VEB_R_F_RARP)((vr->vr_flags) & ((1U << 5)))) { |
| 436 | if (ea.arp_opea_hdr.ar_op != htons(ARPOP_REVREQUEST)(__uint16_t)(__builtin_constant_p(3) ? (__uint16_t)(((__uint16_t )(3) & 0xffU) << 8 | ((__uint16_t)(3) & 0xff00U ) >> 8) : __swap16md(3)) && |
| 437 | ea.arp_opea_hdr.ar_op != htons(ARPOP_REVREPLY)(__uint16_t)(__builtin_constant_p(4) ? (__uint16_t)(((__uint16_t )(4) & 0xffU) << 8 | ((__uint16_t)(4) & 0xff00U ) >> 8) : __swap16md(4))) |
| 438 | return (0); |
| 439 | } |
| 440 | |
| 441 | if (vr->vr_arp_op != htons(0)(__uint16_t)(__builtin_constant_p(0) ? (__uint16_t)(((__uint16_t )(0) & 0xffU) << 8 | ((__uint16_t)(0) & 0xff00U ) >> 8) : __swap16md(0)) && vr->vr_arp_op != ea.arp_opea_hdr.ar_op) |
| 442 | return (0); |
| 443 | |
| 444 | if (ISSET(vr->vr_flags, VEB_R_F_SHA)((vr->vr_flags) & ((1U << 6))) && |
| 445 | !ETHER_IS_EQ(&vr->vr_arp_sha, ea.arp_sha)(__builtin_memcmp(((&vr->vr_arp_sha)), ((ea.arp_sha)), (6)) == 0)) |
| 446 | return (0); |
| 447 | if (ISSET(vr->vr_flags, VEB_R_F_THA)((vr->vr_flags) & ((1U << 8))) && |
| 448 | !ETHER_IS_EQ(&vr->vr_arp_tha, ea.arp_tha)(__builtin_memcmp(((&vr->vr_arp_tha)), ((ea.arp_tha)), (6)) == 0)) |
| 449 | return (0); |
| 450 | if (ISSET(vr->vr_flags, VEB_R_F_SPA)((vr->vr_flags) & ((1U << 7))) && |
| 451 | memcmp(&vr->vr_arp_spa, ea.arp_spa, sizeof(vr->vr_arp_spa))__builtin_memcmp((&vr->vr_arp_spa), (ea.arp_spa), (sizeof (vr->vr_arp_spa))) != 0) |
| 452 | return (0); |
| 453 | if (ISSET(vr->vr_flags, VEB_R_F_TPA)((vr->vr_flags) & ((1U << 9))) && |
| 454 | memcmp(&vr->vr_arp_tpa, ea.arp_tpa, sizeof(vr->vr_arp_tpa))__builtin_memcmp((&vr->vr_arp_tpa), (ea.arp_tpa), (sizeof (vr->vr_arp_tpa))) != 0) |
| 455 | return (0); |
| 456 | |
| 457 | return (1); |
| 458 | } |
| 459 | |
| 460 | static int |
| 461 | veb_rule_list_test(struct veb_rule *vr, int dir, struct mbuf *m, |
| 462 | uint64_t src, uint64_t dst) |
| 463 | { |
| 464 | SMR_ASSERT_CRITICAL()do { if (panicstr == ((void *)0) && !db_active) ((({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci ) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci; })->ci_schedstate.spc_smrdepth > 0) ? (void)0 : __assert ("diagnostic ", "/usr/src/sys/net/if_veb.c", 464, "curcpu()->ci_schedstate.spc_smrdepth > 0" )); } while (0); |
| 465 | |
| 466 | do { |
| 467 | if (ISSET(vr->vr_flags, VEB_R_F_ARP|VEB_R_F_RARP)((vr->vr_flags) & ((1U << 4)|(1U << 5))) && |
| 468 | !veb_rule_arp_match(vr, m)) |
| 469 | continue; |
| 470 | |
| 471 | if (ISSET(vr->vr_flags, VEB_R_F_SRC)((vr->vr_flags) & ((1U << 2))) && |
| 472 | vr->vr_src != src) |
| 473 | continue; |
| 474 | if (ISSET(vr->vr_flags, VEB_R_F_DST)((vr->vr_flags) & ((1U << 3))) && |
| 475 | vr->vr_dst != dst) |
| 476 | continue; |
| 477 | |
| 478 | if (vr->vr_action == VEB_R_BLOCK2) |
| 479 | return (VEB_R_BLOCK2); |
| 480 | #if NPF1 > 0 |
| 481 | pf_tag_packet(m, vr->vr_pftag, -1); |
| 482 | #endif |
| 483 | if (vr->vr_action == VEB_R_PASS1) |
| 484 | return (VEB_R_PASS1); |
| 485 | } while ((vr = SMR_TAILQ_NEXT(vr, vr_lentry[dir])({ typeof(*&(vr)->vr_lentry[dir].smr_tqe_next) __tmp = *(volatile typeof(*&(vr)->vr_lentry[dir].smr_tqe_next ) *)&(*&(vr)->vr_lentry[dir].smr_tqe_next); membar_datadep_consumer (); __tmp; })) != NULL((void *)0)); |
| 486 | |
| 487 | return (VEB_R_PASS1); |
| 488 | } |
| 489 | |
| 490 | static inline int |
| 491 | veb_rule_filter(struct veb_port *p, int dir, struct mbuf *m, |
| 492 | uint64_t src, uint64_t dst) |
| 493 | { |
| 494 | struct veb_rule *vr; |
| 495 | int filter = VEB_R_PASS1; |
| 496 | |
| 497 | smr_read_enter(); |
| 498 | vr = SMR_TAILQ_FIRST(&p->p_vr_list[dir])({ typeof(*&(&p->p_vr_list[dir])->smr_tqh_first ) __tmp = *(volatile typeof(*&(&p->p_vr_list[dir]) ->smr_tqh_first) *)&(*&(&p->p_vr_list[dir]) ->smr_tqh_first); membar_datadep_consumer(); __tmp; }); |
| 499 | if (vr != NULL((void *)0)) |
| 500 | filter = veb_rule_list_test(vr, dir, m, src, dst); |
| 501 | smr_read_leave(); |
| 502 | |
| 503 | return (filter == VEB_R_BLOCK2); |
| 504 | } |
| 505 | |
| 506 | #if NPF1 > 0 |
| 507 | struct veb_pf_ip_family { |
| 508 | sa_family_t af; |
| 509 | struct mbuf *(*ip_check)(struct ifnet *, struct mbuf *); |
| 510 | void (*ip_input)(struct ifnet *, struct mbuf *); |
| 511 | }; |
| 512 | |
| 513 | static const struct veb_pf_ip_family veb_pf_ipv4 = { |
| 514 | .af = AF_INET2, |
| 515 | .ip_check = ipv4_check, |
| 516 | .ip_input = ipv4_input, |
| 517 | }; |
| 518 | |
| 519 | #ifdef INET61 |
| 520 | static const struct veb_pf_ip_family veb_pf_ipv6 = { |
| 521 | .af = AF_INET624, |
| 522 | .ip_check = ipv6_check, |
| 523 | .ip_input = ipv6_input, |
| 524 | }; |
| 525 | #endif |
| 526 | |
| 527 | static struct mbuf * |
| 528 | veb_pf(struct ifnet *ifp0, int dir, struct mbuf *m) |
| 529 | { |
| 530 | struct ether_header *eh, copy; |
| 531 | const struct veb_pf_ip_family *fam; |
| 532 | |
| 533 | /* |
| 534 | * pf runs on vport interfaces when they enter or leave the |
| 535 | * l3 stack, so don't confuse things (even more) by running |
| 536 | * pf again here. note that because of this exception the |
| 537 | * pf direction on vport interfaces is reversed compared to |
| 538 | * other veb ports. |
| 539 | */ |
| 540 | if (ifp0->if_enqueue == vport_enqueue) |
| 541 | return (m); |
| 542 | |
| 543 | eh = mtod(m, struct ether_header *)((struct ether_header *)((m)->m_hdr.mh_data)); |
| 544 | switch (ntohs(eh->ether_type)(__uint16_t)(__builtin_constant_p(eh->ether_type) ? (__uint16_t )(((__uint16_t)(eh->ether_type) & 0xffU) << 8 | ( (__uint16_t)(eh->ether_type) & 0xff00U) >> 8) : __swap16md (eh->ether_type))) { |
| 545 | case ETHERTYPE_IP0x0800: |
| 546 | fam = &veb_pf_ipv4; |
| 547 | break; |
| 548 | #ifdef INET61 |
| 549 | case ETHERTYPE_IPV60x86DD: |
| 550 | fam = &veb_pf_ipv6; |
| 551 | break; |
| 552 | #endif |
| 553 | default: |
| 554 | return (m); |
| 555 | } |
| 556 | |
| 557 | copy = *eh; |
| 558 | m_adj(m, sizeof(*eh)); |
| 559 | |
| 560 | if (dir == PF_IN) { |
| 561 | m = (*fam->ip_check)(ifp0, m); |
| 562 | if (m == NULL((void *)0)) |
| 563 | return (NULL((void *)0)); |
| 564 | } |
| 565 | |
| 566 | if (pf_test(fam->af, dir, ifp0, &m) != PF_PASS) { |
| 567 | m_freem(m); |
| 568 | return (NULL((void *)0)); |
| 569 | } |
| 570 | if (m == NULL((void *)0)) |
| 571 | return (NULL((void *)0)); |
| 572 | |
| 573 | if (dir == PF_IN && ISSET(m->m_pkthdr.pf.flags, PF_TAG_DIVERTED)((m->M_dat.MH.MH_pkthdr.pf.flags) & (0x08))) { |
| 574 | pf_mbuf_unlink_state_key(m); |
| 575 | pf_mbuf_unlink_inpcb(m); |
| 576 | (*fam->ip_input)(ifp0, m); |
| 577 | return (NULL((void *)0)); |
| 578 | } |
| 579 | |
| 580 | m = m_prepend(m, sizeof(*eh), M_DONTWAIT0x0002); |
| 581 | if (m == NULL((void *)0)) |
| 582 | return (NULL((void *)0)); |
| 583 | |
| 584 | /* checksum? */ |
| 585 | |
| 586 | eh = mtod(m, struct ether_header *)((struct ether_header *)((m)->m_hdr.mh_data)); |
| 587 | *eh = copy; |
| 588 | |
| 589 | return (m); |
| 590 | } |
| 591 | #endif /* NPF > 0 */ |
| 592 | |
| 593 | #if 0 && defined(IPSEC1) |
| 594 | static struct mbuf * |
| 595 | veb_ipsec_proto_in(struct ifnet *ifp0, struct mbuf *m, int iphlen, |
| 596 | /* const */ union sockaddr_union *dst, int poff) |
| 597 | { |
| 598 | struct tdb *tdb; |
| 599 | uint16_t cpi; |
| 600 | uint32_t spi; |
| 601 | uint8_t proto; |
| 602 | |
| 603 | /* ipsec_common_input checks for 8 bytes of input, so we do too */ |
| 604 | if (m->m_pkthdrM_dat.MH.MH_pkthdr.len < iphlen + 2 * sizeof(u_int32_t)) |
| 605 | return (m); /* decline */ |
| 606 | |
| 607 | proto = *(mtod(m, uint8_t *)((uint8_t *)((m)->m_hdr.mh_data)) + poff); |
| 608 | /* i'm not a huge fan of how these headers get picked at */ |
| 609 | switch (proto) { |
| 610 | case IPPROTO_ESP50: |
| 611 | m_copydata(m, iphlen, sizeof(spi), &spi); |
| 612 | break; |
| 613 | case IPPROTO_AH51: |
| 614 | m_copydata(m, iphlen + sizeof(uint32_t), sizeof(spi), &spi); |
| 615 | break; |
| 616 | case IPPROTO_IPCOMP108: |
| 617 | m_copydata(m, iphlen + sizeof(uint16_t), sizeof(cpi), &cpi); |
| 618 | spi = htonl(ntohs(cpi))(__uint32_t)(__builtin_constant_p((__uint16_t)(__builtin_constant_p (cpi) ? (__uint16_t)(((__uint16_t)(cpi) & 0xffU) << 8 | ((__uint16_t)(cpi) & 0xff00U) >> 8) : __swap16md (cpi))) ? (__uint32_t)(((__uint32_t)((__uint16_t)(__builtin_constant_p (cpi) ? (__uint16_t)(((__uint16_t)(cpi) & 0xffU) << 8 | ((__uint16_t)(cpi) & 0xff00U) >> 8) : __swap16md (cpi))) & 0xff) << 24 | ((__uint32_t)((__uint16_t)( __builtin_constant_p(cpi) ? (__uint16_t)(((__uint16_t)(cpi) & 0xffU) << 8 | ((__uint16_t)(cpi) & 0xff00U) >> 8) : __swap16md(cpi))) & 0xff00) << 8 | ((__uint32_t )((__uint16_t)(__builtin_constant_p(cpi) ? (__uint16_t)(((__uint16_t )(cpi) & 0xffU) << 8 | ((__uint16_t)(cpi) & 0xff00U ) >> 8) : __swap16md(cpi))) & 0xff0000) >> 8 | ((__uint32_t)((__uint16_t)(__builtin_constant_p(cpi) ? (__uint16_t )(((__uint16_t)(cpi) & 0xffU) << 8 | ((__uint16_t)( cpi) & 0xff00U) >> 8) : __swap16md(cpi))) & 0xff000000 ) >> 24) : __swap32md((__uint16_t)(__builtin_constant_p (cpi) ? (__uint16_t)(((__uint16_t)(cpi) & 0xffU) << 8 | ((__uint16_t)(cpi) & 0xff00U) >> 8) : __swap16md (cpi)))); |
| 619 | break; |
| 620 | default: |
| 621 | return (m); /* decline */ |
| 622 | } |
| 623 | |
| 624 | tdb = gettdb(m->m_pkthdrM_dat.MH.MH_pkthdr.ph_rtableid, spi, dst, proto); |
| 625 | if (tdb != NULL((void *)0) && !ISSET(tdb->tdb_flags, TDBF_INVALID)((tdb->tdb_flags) & (TDBF_INVALID)) && |
| 626 | tdb->tdb_xform != NULL((void *)0)) { |
| 627 | if (tdb->tdb_first_use == 0) { |
| 628 | tdb->tdb_first_use = gettime(); |
| 629 | if (ISSET(tdb->tdb_flags, TDBF_FIRSTUSE)((tdb->tdb_flags) & (TDBF_FIRSTUSE))) { |
| 630 | timeout_add_sec(&tdb->tdb_first_tmo, |
| 631 | tdb->tdb_exp_first_use); |
| 632 | } |
| 633 | if (ISSET(tdb->tdb_flags, TDBF_SOFT_FIRSTUSE)((tdb->tdb_flags) & (TDBF_SOFT_FIRSTUSE))) { |
| 634 | timeout_add_sec(&tdb->tdb_sfirst_tmo, |
| 635 | tdb->tdb_soft_first_use); |
| 636 | } |
| 637 | } |
| 638 | |
| 639 | (*(tdb->tdb_xform->xf_input))(m, tdb, iphlen, poff); |
| 640 | return (NULL((void *)0)); |
| 641 | } |
| 642 | |
| 643 | return (m); |
| 644 | } |
| 645 | |
| 646 | static struct mbuf * |
| 647 | veb_ipsec_ipv4_in(struct ifnet *ifp0, struct mbuf *m) |
| 648 | { |
| 649 | union sockaddr_union su = { |
| 650 | .sin.sin_len = sizeof(su.sin), |
| 651 | .sin.sin_family = AF_INET2, |
| 652 | }; |
| 653 | struct ip *ip; |
| 654 | int iphlen; |
| 655 | |
| 656 | if (m->m_lenm_hdr.mh_len < sizeof(*ip)) { |
| 657 | m = m_pullup(m, sizeof(*ip)); |
| 658 | if (m == NULL((void *)0)) |
| 659 | return (NULL((void *)0)); |
| 660 | } |
| 661 | |
| 662 | ip = mtod(m, struct ip *)((struct ip *)((m)->m_hdr.mh_data)); |
| 663 | iphlen = ip->ip_hl << 2; |
| 664 | if (iphlen < sizeof(*ip)) { |
| 665 | /* this is a weird packet, decline */ |
| 666 | return (m); |
| 667 | } |
| 668 | |
| 669 | su.sin.sin_addr = ip->ip_dst; |
| 670 | |
| 671 | return (veb_ipsec_proto_in(ifp0, m, iphlen, &su, |
| 672 | offsetof(struct ip, ip_p)__builtin_offsetof(struct ip, ip_p))); |
| 673 | } |
| 674 | |
| 675 | #ifdef INET61 |
| 676 | static struct mbuf * |
| 677 | veb_ipsec_ipv6_in(struct ifnet *ifp0, struct mbuf *m) |
| 678 | { |
| 679 | union sockaddr_union su = { |
| 680 | .sin6.sin6_len = sizeof(su.sin6), |
| 681 | .sin6.sin6_family = AF_INET624, |
| 682 | }; |
| 683 | struct ip6_hdr *ip6; |
| 684 | |
| 685 | if (m->m_lenm_hdr.mh_len < sizeof(*ip6)) { |
| 686 | m = m_pullup(m, sizeof(*ip6)); |
| 687 | if (m == NULL((void *)0)) |
| 688 | return (NULL((void *)0)); |
| 689 | } |
| 690 | |
| 691 | ip6 = mtod(m, struct ip6_hdr *)((struct ip6_hdr *)((m)->m_hdr.mh_data)); |
| 692 | |
| 693 | su.sin6.sin6_addr = ip6->ip6_dst; |
| 694 | |
| 695 | /* XXX scope? */ |
| 696 | |
| 697 | return (veb_ipsec_proto_in(ifp0, m, sizeof(*ip6), &su, |
| 698 | offsetof(struct ip6_hdr, ip6_nxt)__builtin_offsetof(struct ip6_hdr, ip6_ctlun.ip6_un1.ip6_un1_nxt ))); |
| 699 | } |
| 700 | #endif /* INET6 */ |
| 701 | |
| 702 | static struct mbuf * |
| 703 | veb_ipsec_in(struct ifnet *ifp0, struct mbuf *m) |
| 704 | { |
| 705 | struct mbuf *(*ipsec_ip_in)(struct ifnet *, struct mbuf *); |
| 706 | struct ether_header *eh, copy; |
| 707 | |
| 708 | if (ifp0->if_enqueue == vport_enqueue) |
| 709 | return (m); |
| 710 | |
| 711 | eh = mtod(m, struct ether_header *)((struct ether_header *)((m)->m_hdr.mh_data)); |
| 712 | switch (ntohs(eh->ether_type)(__uint16_t)(__builtin_constant_p(eh->ether_type) ? (__uint16_t )(((__uint16_t)(eh->ether_type) & 0xffU) << 8 | ( (__uint16_t)(eh->ether_type) & 0xff00U) >> 8) : __swap16md (eh->ether_type))) { |
| 713 | case ETHERTYPE_IP0x0800: |
| 714 | ipsec_ip_in = veb_ipsec_ipv4_in; |
| 715 | break; |
| 716 | #ifdef INET61 |
| 717 | case ETHERTYPE_IPV60x86DD: |
| 718 | ipsec_ip_in = veb_ipsec_ipv6_in; |
| 719 | break; |
| 720 | #endif /* INET6 */ |
| 721 | default: |
| 722 | return (m); |
| 723 | } |
| 724 | |
| 725 | copy = *eh; |
| 726 | m_adj(m, sizeof(*eh)); |
| 727 | |
| 728 | m = (*ipsec_ip_in)(ifp0, m); |
| 729 | if (m == NULL((void *)0)) |
| 730 | return (NULL((void *)0)); |
| 731 | |
| 732 | m = m_prepend(m, sizeof(*eh), M_DONTWAIT0x0002); |
| 733 | if (m == NULL((void *)0)) |
| 734 | return (NULL((void *)0)); |
| 735 | |
| 736 | eh = mtod(m, struct ether_header *)((struct ether_header *)((m)->m_hdr.mh_data)); |
| 737 | *eh = copy; |
| 738 | |
| 739 | return (m); |
| 740 | } |
| 741 | |
| 742 | static struct mbuf * |
| 743 | veb_ipsec_proto_out(struct mbuf *m, sa_family_t af, int iphlen) |
| 744 | { |
| 745 | struct tdb *tdb; |
| 746 | int error; |
| 747 | #if NPF1 > 0 |
| 748 | struct ifnet *encifp; |
| 749 | #endif |
| 750 | |
| 751 | tdb = ipsp_spd_lookup(m, af, iphlen, &error, IPSP_DIRECTION_OUT, |
| 752 | NULL((void *)0), NULL((void *)0), NULL((void *)0)); |
| 753 | if (tdb == NULL((void *)0)) |
| 754 | return (m); |
| 755 | |
| 756 | #if NPF1 > 0 |
| 757 | encifp = enc_getif(tdb->tdb_rdomain, tdb->tdb_tap); |
| 758 | if (encifp != NULL((void *)0)) { |
| 759 | if (pf_test(af, PF_OUT, encifp, &m) != PF_PASS) { |
| 760 | m_freem(m); |
| 761 | return (NULL((void *)0)); |
| 762 | } |
| 763 | if (m == NULL((void *)0)) |
| 764 | return (NULL((void *)0)); |
| 765 | } |
| 766 | #endif /* NPF > 0 */ |
| 767 | |
| 768 | /* XXX mtu checks */ |
| 769 | |
| 770 | (void)ipsp_process_packet(m, tdb, af, 0); |
| 771 | return (NULL((void *)0)); |
| 772 | } |
| 773 | |
| 774 | static struct mbuf * |
| 775 | veb_ipsec_ipv4_out(struct mbuf *m) |
| 776 | { |
| 777 | struct ip *ip; |
| 778 | int iphlen; |
| 779 | |
| 780 | if (m->m_lenm_hdr.mh_len < sizeof(*ip)) { |
| 781 | m = m_pullup(m, sizeof(*ip)); |
| 782 | if (m == NULL((void *)0)) |
| 783 | return (NULL((void *)0)); |
| 784 | } |
| 785 | |
| 786 | ip = mtod(m, struct ip *)((struct ip *)((m)->m_hdr.mh_data)); |
| 787 | iphlen = ip->ip_hl << 2; |
| 788 | if (iphlen < sizeof(*ip)) { |
| 789 | /* this is a weird packet, decline */ |
| 790 | return (m); |
| 791 | } |
| 792 | |
| 793 | return (veb_ipsec_proto_out(m, AF_INET2, iphlen)); |
| 794 | } |
| 795 | |
| 796 | #ifdef INET61 |
| 797 | static struct mbuf * |
| 798 | veb_ipsec_ipv6_out(struct mbuf *m) |
| 799 | { |
| 800 | return (veb_ipsec_proto_out(m, AF_INET624, sizeof(struct ip6_hdr))); |
| 801 | } |
| 802 | #endif /* INET6 */ |
| 803 | |
| 804 | static struct mbuf * |
| 805 | veb_ipsec_out(struct ifnet *ifp0, struct mbuf *m) |
| 806 | { |
| 807 | struct mbuf *(*ipsec_ip_out)(struct mbuf *); |
| 808 | struct ether_header *eh, copy; |
| 809 | |
| 810 | if (ifp0->if_enqueue == vport_enqueue) |
| 811 | return (m); |
| 812 | |
| 813 | eh = mtod(m, struct ether_header *)((struct ether_header *)((m)->m_hdr.mh_data)); |
| 814 | switch (ntohs(eh->ether_type)(__uint16_t)(__builtin_constant_p(eh->ether_type) ? (__uint16_t )(((__uint16_t)(eh->ether_type) & 0xffU) << 8 | ( (__uint16_t)(eh->ether_type) & 0xff00U) >> 8) : __swap16md (eh->ether_type))) { |
| 815 | case ETHERTYPE_IP0x0800: |
| 816 | ipsec_ip_out = veb_ipsec_ipv4_out; |
| 817 | break; |
| 818 | #ifdef INET61 |
| 819 | case ETHERTYPE_IPV60x86DD: |
| 820 | ipsec_ip_out = veb_ipsec_ipv6_out; |
| 821 | break; |
| 822 | #endif /* INET6 */ |
| 823 | default: |
| 824 | return (m); |
| 825 | } |
| 826 | |
| 827 | copy = *eh; |
| 828 | m_adj(m, sizeof(*eh)); |
| 829 | |
| 830 | m = (*ipsec_ip_out)(m); |
| 831 | if (m == NULL((void *)0)) |
| 832 | return (NULL((void *)0)); |
| 833 | |
| 834 | m = m_prepend(m, sizeof(*eh), M_DONTWAIT0x0002); |
| 835 | if (m == NULL((void *)0)) |
| 836 | return (NULL((void *)0)); |
| 837 | |
| 838 | eh = mtod(m, struct ether_header *)((struct ether_header *)((m)->m_hdr.mh_data)); |
| 839 | *eh = copy; |
| 840 | |
| 841 | return (m); |
| 842 | } |
| 843 | #endif /* IPSEC */ |
| 844 | |
| 845 | static void |
| 846 | veb_broadcast(struct veb_softc *sc, struct veb_port *rp, struct mbuf *m0, |
| 847 | uint64_t src, uint64_t dst) |
| 848 | { |
| 849 | struct ifnet *ifp = &sc->sc_if; |
| 850 | struct veb_port *tp; |
| 851 | struct ifnet *ifp0; |
| 852 | struct mbuf *m; |
| 853 | |
| 854 | #if NPF1 > 0 |
| 855 | /* |
| 856 | * we couldn't find a specific port to send this packet to, |
| 857 | * but pf should still have a chance to apply policy to it. |
| 858 | * let pf look at it, but use the veb interface as a proxy. |
| 859 | */ |
| 860 | if (ISSET(ifp->if_flags, IFF_LINK1)((ifp->if_flags) & (0x2000)) && |
| 861 | (m = veb_pf(ifp, PF_OUT, m0)) == NULL((void *)0)) |
| 862 | return; |
| 863 | #endif |
| 864 | |
| 865 | #if 0 && defined(IPSEC1) |
| 866 | /* same goes for ipsec */ |
| 867 | if (ISSET(ifp->if_flags, IFF_LINK2)((ifp->if_flags) & (0x4000)) && |
| 868 | (m = veb_ipsec_out(ifp, m0)) == NULL((void *)0)) |
| 869 | return; |
| 870 | #endif |
| 871 | |
| 872 | counters_pkt(ifp->if_counters, ifc_opackets, ifc_obytes, |
| 873 | m0->m_pkthdrM_dat.MH.MH_pkthdr.len); |
| 874 | |
| 875 | smr_read_enter(); |
| 876 | SMR_TAILQ_FOREACH(tp, &sc->sc_ports.l_list, p_entry)for((tp) = ({ typeof(*&(&sc->sc_ports.l_list)-> smr_tqh_first) __tmp = *(volatile typeof(*&(&sc->sc_ports .l_list)->smr_tqh_first) *)&(*&(&sc->sc_ports .l_list)->smr_tqh_first); membar_datadep_consumer(); __tmp ; }); (tp)!= ((void *)0); (tp) = ({ typeof(*&(tp)->p_entry .smr_tqe_next) __tmp = *(volatile typeof(*&(tp)->p_entry .smr_tqe_next) *)&(*&(tp)->p_entry.smr_tqe_next); membar_datadep_consumer (); __tmp; })) { |
| 877 | if (rp == tp || (rp->p_protected & tp->p_protected)) { |
| 878 | /* |
| 879 | * don't let Ethernet packets hairpin or |
| 880 | * move between ports in the same protected |
| 881 | * domain(s). |
| 882 | */ |
| 883 | continue; |
| 884 | } |
| 885 | |
| 886 | ifp0 = tp->p_ifp0; |
| 887 | if (!ISSET(ifp0->if_flags, IFF_RUNNING)((ifp0->if_flags) & (0x40))) { |
| 888 | /* don't waste time */ |
| 889 | continue; |
| 890 | } |
| 891 | |
| 892 | if (!ISSET(tp->p_bif_flags, IFBIF_DISCOVER)((tp->p_bif_flags) & (0x0002)) && |
| 893 | !ISSET(m0->m_flags, M_BCAST | M_MCAST)((m0->m_hdr.mh_flags) & (0x0100 | 0x0200))) { |
| 894 | /* don't flood unknown unicast */ |
| 895 | continue; |
| 896 | } |
| 897 | |
| 898 | if (veb_rule_filter(tp, VEB_RULE_LIST_OUT0, m0, src, dst)) |
| 899 | continue; |
| 900 | |
| 901 | m = m_dup_pkt(m0, max_linkhdr + ETHER_ALIGN2, M_NOWAIT0x0002); |
| 902 | if (m == NULL((void *)0)) { |
| 903 | /* XXX count error? */ |
| 904 | continue; |
| 905 | } |
| 906 | |
| 907 | (*tp->p_enqueue)(ifp0, m); /* XXX count error */ |
| 908 | } |
| 909 | smr_read_leave(); |
| 910 | |
| 911 | m_freem(m0); |
| 912 | } |
| 913 | |
| 914 | static struct mbuf * |
| 915 | veb_transmit(struct veb_softc *sc, struct veb_port *rp, struct veb_port *tp, |
| 916 | struct mbuf *m, uint64_t src, uint64_t dst) |
| 917 | { |
| 918 | struct ifnet *ifp = &sc->sc_if; |
| 919 | struct ifnet *ifp0; |
| 920 | |
| 921 | if (tp == NULL((void *)0)) |
| 922 | return (m); |
| 923 | |
| 924 | if (rp == tp || (rp->p_protected & tp->p_protected)) { |
| 925 | /* |
| 926 | * don't let Ethernet packets hairpin or move between |
| 927 | * ports in the same protected domain(s). |
| 928 | */ |
| 929 | goto drop; |
| 930 | } |
| 931 | |
| 932 | if (veb_rule_filter(tp, VEB_RULE_LIST_OUT0, m, src, dst)) |
| 933 | goto drop; |
| 934 | |
| 935 | ifp0 = tp->p_ifp0; |
| 936 | |
| 937 | #if 0 && defined(IPSEC1) |
| 938 | if (ISSET(ifp->if_flags, IFF_LINK2)((ifp->if_flags) & (0x4000)) && |
| 939 | (m = veb_ipsec_out(ifp0, m0)) == NULL((void *)0)) |
| 940 | return; |
| 941 | #endif |
| 942 | |
| 943 | #if NPF1 > 0 |
| 944 | if (ISSET(ifp->if_flags, IFF_LINK1)((ifp->if_flags) & (0x2000)) && |
| 945 | (m = veb_pf(ifp0, PF_OUT, m)) == NULL((void *)0)) |
| 946 | return (NULL((void *)0)); |
| 947 | #endif |
| 948 | |
| 949 | counters_pkt(ifp->if_counters, ifc_opackets, ifc_obytes, |
| 950 | m->m_pkthdrM_dat.MH.MH_pkthdr.len); |
| 951 | |
| 952 | (*tp->p_enqueue)(ifp0, m); /* XXX count error */ |
| 953 | |
| 954 | return (NULL((void *)0)); |
| 955 | drop: |
| 956 | m_freem(m); |
| 957 | return (NULL((void *)0)); |
| 958 | } |
| 959 | |
| 960 | static struct mbuf * |
| 961 | veb_vport_input(struct ifnet *ifp0, struct mbuf *m, uint64_t dst, void *brport) |
| 962 | { |
| 963 | return (m); |
| 964 | } |
| 965 | |
| 966 | static struct mbuf * |
| 967 | veb_port_input(struct ifnet *ifp0, struct mbuf *m, uint64_t dst, void *brport) |
| 968 | { |
| 969 | struct veb_port *p = brport; |
| 970 | struct veb_softc *sc = p->p_veb; |
| 971 | struct ifnet *ifp = &sc->sc_if; |
| 972 | struct ether_header *eh; |
| 973 | uint64_t src; |
| 974 | #if NBPFILTER1 > 0 |
| 975 | caddr_t if_bpf; |
| 976 | #endif |
| 977 | |
| 978 | if (!ISSET(ifp->if_flags, IFF_RUNNING)((ifp->if_flags) & (0x40))) |
| 979 | return (m); |
| 980 | |
| 981 | eh = mtod(m, struct ether_header *)((struct ether_header *)((m)->m_hdr.mh_data)); |
| 982 | src = ether_addr_to_e64((struct ether_addr *)eh->ether_shost); |
| 983 | |
| 984 | /* Is this a MAC Bridge component Reserved address? */ |
| 985 | if (ETH64_IS_8021_RSVD(dst)(((dst) & 0xfffffffffff0ULL) == 0x0180c2000000ULL)) { |
| 986 | if (!ISSET(ifp->if_flags, IFF_LINK0)((ifp->if_flags) & (0x1000))) { |
| 987 | /* |
| 988 | * letting vlans through implies this is |
| 989 | * an s-vlan component. |
| 990 | */ |
| 991 | goto drop; |
| 992 | } |
| 993 | |
| 994 | /* look at the last nibble of the 802.1 reserved address */ |
| 995 | switch (dst & 0xf) { |
| 996 | case 0x0: /* Nearest Customer Bridge Group Address */ |
| 997 | case 0xb: /* EDE-SS PEP (IEEE Std 802.1AEcg) */ |
| 998 | case 0xc: /* reserved */ |
| 999 | case 0xd: /* Provider Bridge MVRP Address */ |
| 1000 | case 0xf: /* reserved */ |
| 1001 | break; |
| 1002 | default: |
| 1003 | goto drop; |
| 1004 | } |
| 1005 | } |
| 1006 | |
| 1007 | #if NVLAN1 > 0 |
| 1008 | /* |
| 1009 | * If the underlying interface removed the VLAN header itself, |
| 1010 | * add it back. |
| 1011 | */ |
| 1012 | if (ISSET(m->m_flags, M_VLANTAG)((m->m_hdr.mh_flags) & (0x0020))) { |
| 1013 | m = vlan_inject(m, ETHERTYPE_VLAN0x8100, m->m_pkthdrM_dat.MH.MH_pkthdr.ether_vtag); |
| 1014 | if (m == NULL((void *)0)) { |
| 1015 | counters_inc(ifp->if_counters, ifc_ierrors); |
| 1016 | goto drop; |
| 1017 | } |
| 1018 | } |
| 1019 | #endif |
| 1020 | |
| 1021 | counters_pkt(ifp->if_counters, ifc_ipackets, ifc_ibytes, |
| 1022 | m->m_pkthdrM_dat.MH.MH_pkthdr.len); |
| 1023 | |
| 1024 | /* force packets into the one routing domain for pf */ |
| 1025 | m->m_pkthdrM_dat.MH.MH_pkthdr.ph_rtableid = ifp->if_rdomainif_data.ifi_rdomain; |
| 1026 | |
| 1027 | #if NBPFILTER1 > 0 |
| 1028 | if_bpf = READ_ONCE(ifp->if_bpf)({ typeof(ifp->if_bpf) __tmp = *(volatile typeof(ifp->if_bpf ) *)&(ifp->if_bpf); membar_datadep_consumer(); __tmp; } ); |
| 1029 | if (if_bpf != NULL((void *)0)) { |
| 1030 | if (bpf_mtap_ether(if_bpf, m, 0) != 0) |
| 1031 | goto drop; |
| 1032 | } |
| 1033 | #endif |
| 1034 | |
| 1035 | veb_span(sc, m); |
| 1036 | |
| 1037 | if (ISSET(p->p_bif_flags, IFBIF_BLOCKNONIP)((p->p_bif_flags) & (0x0004)) && |
| 1038 | veb_ip_filter(m)) |
| 1039 | goto drop; |
| 1040 | |
| 1041 | if (!ISSET(ifp->if_flags, IFF_LINK0)((ifp->if_flags) & (0x1000)) && |
| 1042 | veb_vlan_filter(m)) |
| 1043 | goto drop; |
| 1044 | |
| 1045 | if (veb_rule_filter(p, VEB_RULE_LIST_IN1, m, src, dst)) |
| 1046 | goto drop; |
| 1047 | |
| 1048 | #if NPF1 > 0 |
| 1049 | if (ISSET(ifp->if_flags, IFF_LINK1)((ifp->if_flags) & (0x2000)) && |
| 1050 | (m = veb_pf(ifp0, PF_IN, m)) == NULL((void *)0)) |
| 1051 | return (NULL((void *)0)); |
| 1052 | #endif |
| 1053 | |
| 1054 | #if 0 && defined(IPSEC1) |
| 1055 | if (ISSET(ifp->if_flags, IFF_LINK2)((ifp->if_flags) & (0x4000)) && |
| 1056 | (m = veb_ipsec_in(ifp0, m)) == NULL((void *)0)) |
| 1057 | return (NULL((void *)0)); |
| 1058 | #endif |
| 1059 | |
| 1060 | eh = mtod(m, struct ether_header *)((struct ether_header *)((m)->m_hdr.mh_data)); |
Value stored to 'eh' is never read | |
| 1061 | |
| 1062 | if (ISSET(p->p_bif_flags, IFBIF_LEARNING)((p->p_bif_flags) & (0x0001))) |
| 1063 | etherbridge_map(&sc->sc_eb, p, src); |
| 1064 | |
| 1065 | CLR(m->m_flags, M_BCAST|M_MCAST)((m->m_hdr.mh_flags) &= ~(0x0100|0x0200)); |
| 1066 | |
| 1067 | if (!ETH64_IS_MULTICAST(dst)((dst) & 0x010000000000ULL)) { |
| 1068 | struct veb_port *tp = NULL((void *)0); |
| 1069 | |
| 1070 | smr_read_enter(); |
| 1071 | tp = etherbridge_resolve(&sc->sc_eb, dst); |
| 1072 | if (tp != NULL((void *)0)) |
| 1073 | veb_eb_port_take(NULL((void *)0), tp); |
| 1074 | smr_read_leave(); |
| 1075 | if (tp != NULL((void *)0)) { |
| 1076 | m = veb_transmit(sc, p, tp, m, src, dst); |
| 1077 | veb_eb_port_rele(NULL((void *)0), tp); |
| 1078 | } |
| 1079 | |
| 1080 | if (m == NULL((void *)0)) |
| 1081 | return (NULL((void *)0)); |
| 1082 | |
| 1083 | /* unknown unicast address */ |
| 1084 | } else { |
| 1085 | SET(m->m_flags, ETH64_IS_BROADCAST(dst) ? M_BCAST : M_MCAST)((m->m_hdr.mh_flags) |= (((dst) == 0xffffffffffffULL) ? 0x0100 : 0x0200)); |
| 1086 | } |
| 1087 | |
| 1088 | veb_broadcast(sc, p, m, src, dst); |
| 1089 | return (NULL((void *)0)); |
| 1090 | |
| 1091 | drop: |
| 1092 | m_freem(m); |
| 1093 | return (NULL((void *)0)); |
| 1094 | } |
| 1095 | |
| 1096 | static void |
| 1097 | veb_input(struct ifnet *ifp, struct mbuf *m) |
| 1098 | { |
| 1099 | m_freem(m); |
| 1100 | } |
| 1101 | |
| 1102 | static int |
| 1103 | veb_output(struct ifnet *ifp, struct mbuf *m, struct sockaddr *dst, |
| 1104 | struct rtentry *rt) |
| 1105 | { |
| 1106 | m_freem(m); |
| 1107 | return (ENODEV19); |
| 1108 | } |
| 1109 | |
| 1110 | static int |
| 1111 | veb_enqueue(struct ifnet *ifp, struct mbuf *m) |
| 1112 | { |
| 1113 | m_freem(m); |
| 1114 | return (ENODEV19); |
| 1115 | } |
| 1116 | |
| 1117 | static void |
| 1118 | veb_start(struct ifqueue *ifq) |
| 1119 | { |
| 1120 | ifq_purge(ifq); |
| 1121 | } |
| 1122 | |
| 1123 | static int |
| 1124 | veb_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) |
| 1125 | { |
| 1126 | struct veb_softc *sc = ifp->if_softc; |
| 1127 | struct ifbrparam *bparam = (struct ifbrparam *)data; |
| 1128 | int error = 0; |
| 1129 | |
| 1130 | if (sc->sc_dead) |
| 1131 | return (ENXIO6); |
| 1132 | |
| 1133 | switch (cmd) { |
| 1134 | case SIOCSIFFLAGS((unsigned long)0x80000000 | ((sizeof(struct ifreq) & 0x1fff ) << 16) | ((('i')) << 8) | ((16))): |
| 1135 | if (ISSET(ifp->if_flags, IFF_UP)((ifp->if_flags) & (0x1))) { |
| 1136 | if (!ISSET(ifp->if_flags, IFF_RUNNING)((ifp->if_flags) & (0x40))) |
| 1137 | error = veb_up(sc); |
| 1138 | } else { |
| 1139 | if (ISSET(ifp->if_flags, IFF_RUNNING)((ifp->if_flags) & (0x40))) |
| 1140 | error = veb_down(sc); |
| 1141 | } |
| 1142 | break; |
| 1143 | |
| 1144 | case SIOCBRDGADD((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff ) << 16) | ((('i')) << 8) | ((60))): |
| 1145 | error = suser(curproc({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc); |
| 1146 | if (error != 0) |
| 1147 | break; |
| 1148 | |
| 1149 | error = veb_add_port(sc, (struct ifbreq *)data, 0); |
| 1150 | break; |
| 1151 | case SIOCBRDGADDS((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff ) << 16) | ((('i')) << 8) | ((65))): |
| 1152 | error = suser(curproc({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc); |
| 1153 | if (error != 0) |
| 1154 | break; |
| 1155 | |
| 1156 | error = veb_add_port(sc, (struct ifbreq *)data, 1); |
| 1157 | break; |
| 1158 | case SIOCBRDGDEL((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff ) << 16) | ((('i')) << 8) | ((61))): |
| 1159 | error = suser(curproc({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc); |
| 1160 | if (error != 0) |
| 1161 | break; |
| 1162 | |
| 1163 | error = veb_del_port(sc, (struct ifbreq *)data, 0); |
| 1164 | break; |
| 1165 | case SIOCBRDGDELS((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff ) << 16) | ((('i')) << 8) | ((66))): |
| 1166 | error = suser(curproc({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc); |
| 1167 | if (error != 0) |
| 1168 | break; |
| 1169 | |
| 1170 | error = veb_del_port(sc, (struct ifbreq *)data, 1); |
| 1171 | break; |
| 1172 | |
| 1173 | case SIOCBRDGSCACHE((unsigned long)0x80000000 | ((sizeof(struct ifbrparam) & 0x1fff) << 16) | ((('i')) << 8) | ((64))): |
| 1174 | error = suser(curproc({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc); |
| 1175 | if (error != 0) |
| 1176 | break; |
| 1177 | |
| 1178 | error = etherbridge_set_max(&sc->sc_eb, bparam); |
| 1179 | break; |
| 1180 | case SIOCBRDGGCACHE(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof (struct ifbrparam) & 0x1fff) << 16) | ((('i')) << 8) | ((65))): |
| 1181 | error = etherbridge_get_max(&sc->sc_eb, bparam); |
| 1182 | break; |
| 1183 | |
| 1184 | case SIOCBRDGSTO((unsigned long)0x80000000 | ((sizeof(struct ifbrparam) & 0x1fff) << 16) | ((('i')) << 8) | ((69))): |
| 1185 | error = suser(curproc({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc); |
| 1186 | if (error != 0) |
| 1187 | break; |
| 1188 | |
| 1189 | error = etherbridge_set_tmo(&sc->sc_eb, bparam); |
| 1190 | break; |
| 1191 | case SIOCBRDGGTO(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof (struct ifbrparam) & 0x1fff) << 16) | ((('i')) << 8) | ((70))): |
| 1192 | error = etherbridge_get_tmo(&sc->sc_eb, bparam); |
| 1193 | break; |
| 1194 | |
| 1195 | case SIOCBRDGRTS(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof (struct ifbaconf) & 0x1fff) << 16) | ((('i')) << 8) | ((67))): |
| 1196 | error = etherbridge_rtfind(&sc->sc_eb, (struct ifbaconf *)data); |
| 1197 | break; |
| 1198 | case SIOCBRDGIFS(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof (struct ifbreq) & 0x1fff) << 16) | ((('i')) << 8) | ((66))): |
| 1199 | error = veb_port_list(sc, (struct ifbifconf *)data); |
| 1200 | break; |
| 1201 | case SIOCBRDGFLUSH((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff ) << 16) | ((('i')) << 8) | ((72))): |
| 1202 | etherbridge_flush(&sc->sc_eb, |
| 1203 | ((struct ifbreq *)data)->ifbr_ifsflags); |
| 1204 | break; |
| 1205 | case SIOCBRDGSADDR(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof (struct ifbareq) & 0x1fff) << 16) | ((('i')) << 8) | ((68))): |
| 1206 | error = veb_add_addr(sc, (struct ifbareq *)data); |
| 1207 | break; |
| 1208 | case SIOCBRDGDADDR((unsigned long)0x80000000 | ((sizeof(struct ifbareq) & 0x1fff ) << 16) | ((('i')) << 8) | ((71))): |
| 1209 | error = veb_del_addr(sc, (struct ifbareq *)data); |
| 1210 | break; |
| 1211 | |
| 1212 | case SIOCBRDGSIFPROT((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff ) << 16) | ((('i')) << 8) | ((74))): |
| 1213 | error = veb_port_set_protected(sc, (struct ifbreq *)data); |
| 1214 | break; |
| 1215 | |
| 1216 | case SIOCBRDGSIFFLGS((unsigned long)0x80000000 | ((sizeof(struct ifbreq) & 0x1fff ) << 16) | ((('i')) << 8) | ((63))): |
| 1217 | error = veb_port_set_flags(sc, (struct ifbreq *)data); |
| 1218 | break; |
| 1219 | case SIOCBRDGGIFFLGS(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof (struct ifbreq) & 0x1fff) << 16) | ((('i')) << 8) | ((62))): |
| 1220 | error = veb_port_get_flags(sc, (struct ifbreq *)data); |
| 1221 | break; |
| 1222 | |
| 1223 | case SIOCBRDGARL((unsigned long)0x80000000 | ((sizeof(struct ifbrlreq) & 0x1fff ) << 16) | ((('i')) << 8) | ((77))): |
| 1224 | error = veb_rule_add(sc, (struct ifbrlreq *)data); |
| 1225 | break; |
| 1226 | case SIOCBRDGFRL((unsigned long)0x80000000 | ((sizeof(struct ifbrlreq) & 0x1fff ) << 16) | ((('i')) << 8) | ((78))): |
| 1227 | error = veb_rule_list_flush(sc, (struct ifbrlreq *)data); |
| 1228 | break; |
| 1229 | case SIOCBRDGGRL(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof (struct ifbrlconf) & 0x1fff) << 16) | ((('i')) << 8) | ((79))): |
| 1230 | error = veb_rule_list_get(sc, (struct ifbrlconf *)data); |
| 1231 | break; |
| 1232 | |
| 1233 | default: |
| 1234 | error = ENOTTY25; |
| 1235 | break; |
| 1236 | } |
| 1237 | |
| 1238 | if (error == ENETRESET52) |
| 1239 | error = veb_iff(sc); |
| 1240 | |
| 1241 | return (error); |
| 1242 | } |
| 1243 | |
| 1244 | static int |
| 1245 | veb_add_port(struct veb_softc *sc, const struct ifbreq *req, unsigned int span) |
| 1246 | { |
| 1247 | struct ifnet *ifp = &sc->sc_if; |
| 1248 | struct ifnet *ifp0; |
| 1249 | struct veb_ports *port_list; |
| 1250 | struct veb_port *p; |
| 1251 | int isvport; |
| 1252 | int error; |
| 1253 | |
| 1254 | NET_ASSERT_LOCKED()do { int _s = rw_status(&netlock); if ((splassert_ctl > 0) && (_s != 0x0001UL && _s != 0x0002UL)) splassert_fail (0x0002UL, _s, __func__); } while (0); |
| 1255 | |
| 1256 | ifp0 = if_unit(req->ifbr_ifsname); |
| 1257 | if (ifp0 == NULL((void *)0)) |
| 1258 | return (EINVAL22); |
| 1259 | |
| 1260 | if (ifp0->if_typeif_data.ifi_type != IFT_ETHER0x06) { |
| 1261 | error = EPROTONOSUPPORT43; |
| 1262 | goto put; |
| 1263 | } |
| 1264 | |
| 1265 | if (ifp0 == ifp) { |
| 1266 | error = EPROTONOSUPPORT43; |
| 1267 | goto put; |
| 1268 | } |
| 1269 | |
| 1270 | isvport = (ifp0->if_enqueue == vport_enqueue); |
| 1271 | |
| 1272 | error = ether_brport_isset(ifp0); |
| 1273 | if (error != 0) |
| 1274 | goto put; |
| 1275 | |
| 1276 | /* let's try */ |
| 1277 | |
| 1278 | p = malloc(sizeof(*p), M_DEVBUF2, M_WAITOK0x0001|M_ZERO0x0008|M_CANFAIL0x0004); |
| 1279 | if (p == NULL((void *)0)) { |
| 1280 | error = ENOMEM12; |
| 1281 | goto put; |
| 1282 | } |
| 1283 | |
| 1284 | p->p_ifp0 = ifp0; |
| 1285 | p->p_veb = sc; |
| 1286 | |
| 1287 | refcnt_init(&p->p_refs); |
| 1288 | TAILQ_INIT(&p->p_vrl)do { (&p->p_vrl)->tqh_first = ((void *)0); (&p-> p_vrl)->tqh_last = &(&p->p_vrl)->tqh_first; } while (0); |
| 1289 | SMR_TAILQ_INIT(&p->p_vr_list[0])do { (&p->p_vr_list[0])->smr_tqh_first = ((void *)0 ); (&p->p_vr_list[0])->smr_tqh_last = &(&p-> p_vr_list[0])->smr_tqh_first; } while (0); |
| 1290 | SMR_TAILQ_INIT(&p->p_vr_list[1])do { (&p->p_vr_list[1])->smr_tqh_first = ((void *)0 ); (&p->p_vr_list[1])->smr_tqh_last = &(&p-> p_vr_list[1])->smr_tqh_first; } while (0); |
| 1291 | |
| 1292 | p->p_enqueue = isvport ? vport_if_enqueue : if_enqueue; |
| 1293 | p->p_ioctl = ifp0->if_ioctl; |
| 1294 | p->p_output = ifp0->if_output; |
| 1295 | |
| 1296 | if (span) { |
| 1297 | port_list = &sc->sc_spans; |
| 1298 | |
| 1299 | if (isvport) { |
| 1300 | error = EPROTONOSUPPORT43; |
| 1301 | goto free; |
| 1302 | } |
| 1303 | |
| 1304 | p->p_brport.eb_input = veb_span_input; |
| 1305 | p->p_bif_flags = IFBIF_SPAN0x0100; |
| 1306 | } else { |
| 1307 | port_list = &sc->sc_ports; |
| 1308 | |
| 1309 | error = ifpromisc(ifp0, 1); |
| 1310 | if (error != 0) |
| 1311 | goto free; |
| 1312 | |
| 1313 | p->p_bif_flags = IFBIF_LEARNING0x0001 | IFBIF_DISCOVER0x0002; |
| 1314 | p->p_brport.eb_input = isvport ? |
| 1315 | veb_vport_input : veb_port_input; |
| 1316 | } |
| 1317 | |
| 1318 | p->p_brport.eb_port_take = veb_eb_brport_take; |
| 1319 | p->p_brport.eb_port_rele = veb_eb_brport_rele; |
| 1320 | |
| 1321 | /* this might have changed if we slept for malloc or ifpromisc */ |
| 1322 | error = ether_brport_isset(ifp0); |
| 1323 | if (error != 0) |
| 1324 | goto unpromisc; |
| 1325 | |
| 1326 | task_set(&p->p_ltask, veb_p_linkch, p); |
| 1327 | if_linkstatehook_add(ifp0, &p->p_ltask); |
| 1328 | |
| 1329 | task_set(&p->p_dtask, veb_p_detach, p); |
| 1330 | if_detachhook_add(ifp0, &p->p_dtask); |
| 1331 | |
| 1332 | p->p_brport.eb_port = p; |
| 1333 | |
| 1334 | /* commit */ |
| 1335 | SMR_TAILQ_INSERT_TAIL_LOCKED(&port_list->l_list, p, p_entry)do { (p)->p_entry.smr_tqe_next = ((void *)0); (p)->p_entry .smr_tqe_prev = (&port_list->l_list)->smr_tqh_last; do { __asm volatile("" ::: "memory"); } while (0); *(&port_list ->l_list)->smr_tqh_last = (p); (&port_list->l_list )->smr_tqh_last = &(p)->p_entry.smr_tqe_next; } while (0); |
| 1336 | port_list->l_count++; |
| 1337 | |
| 1338 | ether_brport_set(ifp0, &p->p_brport); |
| 1339 | if (!isvport) { /* vport is special */ |
| 1340 | ifp0->if_ioctl = veb_p_ioctl; |
| 1341 | ifp0->if_output = veb_p_output; |
| 1342 | } |
| 1343 | |
| 1344 | veb_p_linkch(p); |
| 1345 | |
| 1346 | return (0); |
| 1347 | |
| 1348 | unpromisc: |
| 1349 | if (!span) |
| 1350 | ifpromisc(ifp0, 0); |
| 1351 | free: |
| 1352 | free(p, M_DEVBUF2, sizeof(*p)); |
| 1353 | put: |
| 1354 | if_put(ifp0); |
| 1355 | return (error); |
| 1356 | } |
| 1357 | |
| 1358 | static struct veb_port * |
| 1359 | veb_trunkport(struct veb_softc *sc, const char *name, unsigned int span) |
| 1360 | { |
| 1361 | struct veb_ports *port_list; |
| 1362 | struct veb_port *p; |
| 1363 | |
| 1364 | port_list = span ? &sc->sc_spans : &sc->sc_ports; |
| 1365 | |
| 1366 | SMR_TAILQ_FOREACH_LOCKED(p, &port_list->l_list, p_entry)for((p) = ((&port_list->l_list)->smr_tqh_first); (p )!= ((void *)0); (p) = ((p)->p_entry.smr_tqe_next)) { |
| 1367 | if (strcmp(p->p_ifp0->if_xname, name) == 0) |
| 1368 | return (p); |
| 1369 | } |
| 1370 | |
| 1371 | return (NULL((void *)0)); |
| 1372 | } |
| 1373 | |
| 1374 | static int |
| 1375 | veb_del_port(struct veb_softc *sc, const struct ifbreq *req, unsigned int span) |
| 1376 | { |
| 1377 | struct veb_port *p; |
| 1378 | |
| 1379 | NET_ASSERT_LOCKED()do { int _s = rw_status(&netlock); if ((splassert_ctl > 0) && (_s != 0x0001UL && _s != 0x0002UL)) splassert_fail (0x0002UL, _s, __func__); } while (0); |
| 1380 | p = veb_trunkport(sc, req->ifbr_ifsname, span); |
| 1381 | if (p == NULL((void *)0)) |
| 1382 | return (EINVAL22); |
| 1383 | |
| 1384 | veb_p_dtor(sc, p, "del"); |
| 1385 | |
| 1386 | return (0); |
| 1387 | } |
| 1388 | |
| 1389 | static struct veb_port * |
| 1390 | veb_port_get(struct veb_softc *sc, const char *name) |
| 1391 | { |
| 1392 | struct veb_port *p; |
| 1393 | |
| 1394 | NET_ASSERT_LOCKED()do { int _s = rw_status(&netlock); if ((splassert_ctl > 0) && (_s != 0x0001UL && _s != 0x0002UL)) splassert_fail (0x0002UL, _s, __func__); } while (0); |
| 1395 | |
| 1396 | SMR_TAILQ_FOREACH_LOCKED(p, &sc->sc_ports.l_list, p_entry)for((p) = ((&sc->sc_ports.l_list)->smr_tqh_first); ( p)!= ((void *)0); (p) = ((p)->p_entry.smr_tqe_next)) { |
| 1397 | struct ifnet *ifp0 = p->p_ifp0; |
| 1398 | if (strncmp(ifp0->if_xname, name, |
| 1399 | sizeof(ifp0->if_xname)) == 0) { |
| 1400 | refcnt_take(&p->p_refs); |
| 1401 | break; |
| 1402 | } |
| 1403 | } |
| 1404 | |
| 1405 | return (p); |
| 1406 | } |
| 1407 | |
| 1408 | static void |
| 1409 | veb_port_put(struct veb_softc *sc, struct veb_port *p) |
| 1410 | { |
| 1411 | refcnt_rele_wake(&p->p_refs); |
| 1412 | } |
| 1413 | |
| 1414 | static int |
| 1415 | veb_port_set_protected(struct veb_softc *sc, const struct ifbreq *ifbr) |
| 1416 | { |
| 1417 | struct veb_port *p; |
| 1418 | |
| 1419 | p = veb_port_get(sc, ifbr->ifbr_ifsname); |
| 1420 | if (p == NULL((void *)0)) |
| 1421 | return (ESRCH3); |
| 1422 | |
| 1423 | p->p_protected = ifbr->ifbr_protected; |
| 1424 | veb_port_put(sc, p); |
| 1425 | |
| 1426 | return (0); |
| 1427 | } |
| 1428 | |
| 1429 | static int |
| 1430 | veb_rule_add(struct veb_softc *sc, const struct ifbrlreq *ifbr) |
| 1431 | { |
| 1432 | const struct ifbrarpf *brla = &ifbr->ifbr_arpf; |
| 1433 | struct veb_rule vr, *vrp; |
| 1434 | struct veb_port *p; |
| 1435 | int error; |
| 1436 | |
| 1437 | memset(&vr, 0, sizeof(vr))__builtin_memset((&vr), (0), (sizeof(vr))); |
| 1438 | |
| 1439 | switch (ifbr->ifbr_action) { |
| 1440 | case BRL_ACTION_BLOCK0x01: |
| 1441 | vr.vr_action = VEB_R_BLOCK2; |
| 1442 | break; |
| 1443 | case BRL_ACTION_PASS0x02: |
| 1444 | vr.vr_action = VEB_R_PASS1; |
| 1445 | break; |
| 1446 | /* XXX VEB_R_MATCH */ |
| 1447 | default: |
| 1448 | return (EINVAL22); |
| 1449 | } |
| 1450 | |
| 1451 | if (!ISSET(ifbr->ifbr_flags, BRL_FLAG_IN|BRL_FLAG_OUT)((ifbr->ifbr_flags) & (0x08|0x04))) |
| 1452 | return (EINVAL22); |
| 1453 | if (ISSET(ifbr->ifbr_flags, BRL_FLAG_IN)((ifbr->ifbr_flags) & (0x08))) |
| 1454 | SET(vr.vr_flags, VEB_R_F_IN)((vr.vr_flags) |= ((1U << 0))); |
| 1455 | if (ISSET(ifbr->ifbr_flags, BRL_FLAG_OUT)((ifbr->ifbr_flags) & (0x04))) |
| 1456 | SET(vr.vr_flags, VEB_R_F_OUT)((vr.vr_flags) |= ((1U << 1))); |
| 1457 | |
| 1458 | if (ISSET(ifbr->ifbr_flags, BRL_FLAG_SRCVALID)((ifbr->ifbr_flags) & (0x02))) { |
| 1459 | SET(vr.vr_flags, VEB_R_F_SRC)((vr.vr_flags) |= ((1U << 2))); |
| 1460 | vr.vr_src = ether_addr_to_e64(&ifbr->ifbr_src); |
| 1461 | } |
| 1462 | if (ISSET(ifbr->ifbr_flags, BRL_FLAG_DSTVALID)((ifbr->ifbr_flags) & (0x01))) { |
| 1463 | SET(vr.vr_flags, VEB_R_F_DST)((vr.vr_flags) |= ((1U << 3))); |
| 1464 | vr.vr_dst = ether_addr_to_e64(&ifbr->ifbr_dst); |
| 1465 | } |
| 1466 | |
| 1467 | /* ARP rule */ |
| 1468 | if (ISSET(brla->brla_flags, BRLA_ARP|BRLA_RARP)((brla->brla_flags) & (0x01|0x02))) { |
| 1469 | if (ISSET(brla->brla_flags, BRLA_ARP)((brla->brla_flags) & (0x01))) |
| 1470 | SET(vr.vr_flags, VEB_R_F_ARP)((vr.vr_flags) |= ((1U << 4))); |
| 1471 | if (ISSET(brla->brla_flags, BRLA_RARP)((brla->brla_flags) & (0x02))) |
| 1472 | SET(vr.vr_flags, VEB_R_F_RARP)((vr.vr_flags) |= ((1U << 5))); |
| 1473 | |
| 1474 | if (ISSET(brla->brla_flags, BRLA_SHA)((brla->brla_flags) & (0x10))) { |
| 1475 | SET(vr.vr_flags, VEB_R_F_SHA)((vr.vr_flags) |= ((1U << 6))); |
| 1476 | vr.vr_arp_sha = brla->brla_sha; |
| 1477 | } |
| 1478 | if (ISSET(brla->brla_flags, BRLA_THA)((brla->brla_flags) & (0x40))) { |
| 1479 | SET(vr.vr_flags, VEB_R_F_THA)((vr.vr_flags) |= ((1U << 8))); |
| 1480 | vr.vr_arp_tha = brla->brla_tha; |
| 1481 | } |
| 1482 | if (ISSET(brla->brla_flags, BRLA_SPA)((brla->brla_flags) & (0x20))) { |
| 1483 | SET(vr.vr_flags, VEB_R_F_SPA)((vr.vr_flags) |= ((1U << 7))); |
| 1484 | vr.vr_arp_spa = brla->brla_spa; |
| 1485 | } |
| 1486 | if (ISSET(brla->brla_flags, BRLA_TPA)((brla->brla_flags) & (0x80))) { |
| 1487 | SET(vr.vr_flags, VEB_R_F_TPA)((vr.vr_flags) |= ((1U << 9))); |
| 1488 | vr.vr_arp_tpa = brla->brla_tpa; |
| 1489 | } |
| 1490 | vr.vr_arp_op = htons(brla->brla_op)(__uint16_t)(__builtin_constant_p(brla->brla_op) ? (__uint16_t )(((__uint16_t)(brla->brla_op) & 0xffU) << 8 | ( (__uint16_t)(brla->brla_op) & 0xff00U) >> 8) : __swap16md (brla->brla_op)); |
| 1491 | } |
| 1492 | |
| 1493 | if (ifbr->ifbr_tagname[0] != '\0') { |
| 1494 | #if NPF1 > 0 |
| 1495 | vr.vr_pftag = pf_tagname2tag((char *)ifbr->ifbr_tagname, 1); |
| 1496 | if (vr.vr_pftag == 0) |
| 1497 | return (ENOMEM12); |
| 1498 | #else |
| 1499 | return (EINVAL22); |
| 1500 | #endif |
| 1501 | } |
| 1502 | |
| 1503 | p = veb_port_get(sc, ifbr->ifbr_ifsname); |
| 1504 | if (p == NULL((void *)0)) { |
| 1505 | error = ESRCH3; |
| 1506 | goto error; |
| 1507 | } |
| 1508 | |
| 1509 | vrp = pool_get(&veb_rule_pool, PR_WAITOK0x0001|PR_LIMITFAIL0x0004|PR_ZERO0x0008); |
| 1510 | if (vrp == NULL((void *)0)) { |
| 1511 | error = ENOMEM12; |
| 1512 | goto port_put; |
| 1513 | } |
| 1514 | |
| 1515 | *vrp = vr; |
| 1516 | |
| 1517 | /* there's one big lock on a veb for all ports */ |
| 1518 | error = rw_enter(&sc->sc_rule_lock, RW_WRITE0x0001UL|RW_INTR0x0010UL); |
| 1519 | if (error != 0) |
| 1520 | goto rule_put; |
| 1521 | |
| 1522 | TAILQ_INSERT_TAIL(&p->p_vrl, vrp, vr_entry)do { (vrp)->vr_entry.tqe_next = ((void *)0); (vrp)->vr_entry .tqe_prev = (&p->p_vrl)->tqh_last; *(&p->p_vrl )->tqh_last = (vrp); (&p->p_vrl)->tqh_last = & (vrp)->vr_entry.tqe_next; } while (0); |
| 1523 | p->p_nvrl++; |
| 1524 | if (ISSET(vr.vr_flags, VEB_R_F_OUT)((vr.vr_flags) & ((1U << 1)))) { |
| 1525 | SMR_TAILQ_INSERT_TAIL_LOCKED(&p->p_vr_list[0],do { (vrp)->vr_lentry[0].smr_tqe_next = ((void *)0); (vrp) ->vr_lentry[0].smr_tqe_prev = (&p->p_vr_list[0])-> smr_tqh_last; do { __asm volatile("" ::: "memory"); } while ( 0); *(&p->p_vr_list[0])->smr_tqh_last = (vrp); (& p->p_vr_list[0])->smr_tqh_last = &(vrp)->vr_lentry [0].smr_tqe_next; } while (0) |
| 1526 | vrp, vr_lentry[0])do { (vrp)->vr_lentry[0].smr_tqe_next = ((void *)0); (vrp) ->vr_lentry[0].smr_tqe_prev = (&p->p_vr_list[0])-> smr_tqh_last; do { __asm volatile("" ::: "memory"); } while ( 0); *(&p->p_vr_list[0])->smr_tqh_last = (vrp); (& p->p_vr_list[0])->smr_tqh_last = &(vrp)->vr_lentry [0].smr_tqe_next; } while (0); |
| 1527 | } |
| 1528 | if (ISSET(vr.vr_flags, VEB_R_F_IN)((vr.vr_flags) & ((1U << 0)))) { |
| 1529 | SMR_TAILQ_INSERT_TAIL_LOCKED(&p->p_vr_list[1],do { (vrp)->vr_lentry[1].smr_tqe_next = ((void *)0); (vrp) ->vr_lentry[1].smr_tqe_prev = (&p->p_vr_list[1])-> smr_tqh_last; do { __asm volatile("" ::: "memory"); } while ( 0); *(&p->p_vr_list[1])->smr_tqh_last = (vrp); (& p->p_vr_list[1])->smr_tqh_last = &(vrp)->vr_lentry [1].smr_tqe_next; } while (0) |
| 1530 | vrp, vr_lentry[1])do { (vrp)->vr_lentry[1].smr_tqe_next = ((void *)0); (vrp) ->vr_lentry[1].smr_tqe_prev = (&p->p_vr_list[1])-> smr_tqh_last; do { __asm volatile("" ::: "memory"); } while ( 0); *(&p->p_vr_list[1])->smr_tqh_last = (vrp); (& p->p_vr_list[1])->smr_tqh_last = &(vrp)->vr_lentry [1].smr_tqe_next; } while (0); |
| 1531 | } |
| 1532 | |
| 1533 | rw_exit(&sc->sc_rule_lock); |
| 1534 | veb_port_put(sc, p); |
| 1535 | |
| 1536 | return (0); |
| 1537 | |
| 1538 | rule_put: |
| 1539 | pool_put(&veb_rule_pool, vrp); |
| 1540 | port_put: |
| 1541 | veb_port_put(sc, p); |
| 1542 | error: |
| 1543 | #if NPF1 > 0 |
| 1544 | pf_tag_unref(vr.vr_pftag); |
| 1545 | #endif |
| 1546 | return (error); |
| 1547 | } |
| 1548 | |
| 1549 | static void |
| 1550 | veb_rule_list_free(struct veb_rule *nvr) |
| 1551 | { |
| 1552 | struct veb_rule *vr; |
| 1553 | |
| 1554 | while ((vr = nvr) != NULL((void *)0)) { |
| 1555 | nvr = TAILQ_NEXT(vr, vr_entry)((vr)->vr_entry.tqe_next); |
| 1556 | pool_put(&veb_rule_pool, vr); |
| 1557 | } |
| 1558 | } |
| 1559 | |
| 1560 | static int |
| 1561 | veb_rule_list_flush(struct veb_softc *sc, const struct ifbrlreq *ifbr) |
| 1562 | { |
| 1563 | struct veb_port *p; |
| 1564 | struct veb_rule *vr; |
| 1565 | int error; |
| 1566 | |
| 1567 | p = veb_port_get(sc, ifbr->ifbr_ifsname); |
| 1568 | if (p == NULL((void *)0)) |
| 1569 | return (ESRCH3); |
| 1570 | |
| 1571 | error = rw_enter(&sc->sc_rule_lock, RW_WRITE0x0001UL|RW_INTR0x0010UL); |
| 1572 | if (error != 0) { |
| 1573 | veb_port_put(sc, p); |
| 1574 | return (error); |
| 1575 | } |
| 1576 | |
| 1577 | /* take all the rules away */ |
| 1578 | vr = TAILQ_FIRST(&p->p_vrl)((&p->p_vrl)->tqh_first); |
| 1579 | |
| 1580 | /* reset the lists and counts of rules */ |
| 1581 | TAILQ_INIT(&p->p_vrl)do { (&p->p_vrl)->tqh_first = ((void *)0); (&p-> p_vrl)->tqh_last = &(&p->p_vrl)->tqh_first; } while (0); |
| 1582 | p->p_nvrl = 0; |
| 1583 | SMR_TAILQ_INIT(&p->p_vr_list[0])do { (&p->p_vr_list[0])->smr_tqh_first = ((void *)0 ); (&p->p_vr_list[0])->smr_tqh_last = &(&p-> p_vr_list[0])->smr_tqh_first; } while (0); |
| 1584 | SMR_TAILQ_INIT(&p->p_vr_list[1])do { (&p->p_vr_list[1])->smr_tqh_first = ((void *)0 ); (&p->p_vr_list[1])->smr_tqh_last = &(&p-> p_vr_list[1])->smr_tqh_first; } while (0); |
| 1585 | |
| 1586 | rw_exit(&sc->sc_rule_lock); |
| 1587 | veb_port_put(sc, p); |
| 1588 | |
| 1589 | smr_barrier()smr_barrier_impl(0); |
| 1590 | veb_rule_list_free(vr); |
| 1591 | |
| 1592 | return (0); |
| 1593 | } |
| 1594 | |
| 1595 | static void |
| 1596 | veb_rule2ifbr(struct ifbrlreq *ifbr, const struct veb_rule *vr) |
| 1597 | { |
| 1598 | switch (vr->vr_action) { |
| 1599 | case VEB_R_PASS1: |
| 1600 | ifbr->ifbr_action = BRL_ACTION_PASS0x02; |
| 1601 | break; |
| 1602 | case VEB_R_BLOCK2: |
| 1603 | ifbr->ifbr_action = BRL_ACTION_BLOCK0x01; |
| 1604 | break; |
| 1605 | } |
| 1606 | |
| 1607 | if (ISSET(vr->vr_flags, VEB_R_F_IN)((vr->vr_flags) & ((1U << 0)))) |
| 1608 | SET(ifbr->ifbr_flags, BRL_FLAG_IN)((ifbr->ifbr_flags) |= (0x08)); |
| 1609 | if (ISSET(vr->vr_flags, VEB_R_F_OUT)((vr->vr_flags) & ((1U << 1)))) |
| 1610 | SET(ifbr->ifbr_flags, BRL_FLAG_OUT)((ifbr->ifbr_flags) |= (0x04)); |
| 1611 | |
| 1612 | if (ISSET(vr->vr_flags, VEB_R_F_SRC)((vr->vr_flags) & ((1U << 2)))) { |
| 1613 | SET(ifbr->ifbr_flags, BRL_FLAG_SRCVALID)((ifbr->ifbr_flags) |= (0x02)); |
| 1614 | ether_e64_to_addr(&ifbr->ifbr_src, vr->vr_src); |
| 1615 | } |
| 1616 | if (ISSET(vr->vr_flags, VEB_R_F_DST)((vr->vr_flags) & ((1U << 3)))) { |
| 1617 | SET(ifbr->ifbr_flags, BRL_FLAG_DSTVALID)((ifbr->ifbr_flags) |= (0x01)); |
| 1618 | ether_e64_to_addr(&ifbr->ifbr_dst, vr->vr_dst); |
| 1619 | } |
| 1620 | |
| 1621 | /* ARP rule */ |
| 1622 | if (ISSET(vr->vr_flags, VEB_R_F_ARP|VEB_R_F_RARP)((vr->vr_flags) & ((1U << 4)|(1U << 5)))) { |
| 1623 | struct ifbrarpf *brla = &ifbr->ifbr_arpf; |
| 1624 | |
| 1625 | if (ISSET(vr->vr_flags, VEB_R_F_ARP)((vr->vr_flags) & ((1U << 4)))) |
| 1626 | SET(brla->brla_flags, BRLA_ARP)((brla->brla_flags) |= (0x01)); |
| 1627 | if (ISSET(vr->vr_flags, VEB_R_F_RARP)((vr->vr_flags) & ((1U << 5)))) |
| 1628 | SET(brla->brla_flags, BRLA_RARP)((brla->brla_flags) |= (0x02)); |
| 1629 | |
| 1630 | if (ISSET(vr->vr_flags, VEB_R_F_SHA)((vr->vr_flags) & ((1U << 6)))) { |
| 1631 | SET(brla->brla_flags, BRLA_SHA)((brla->brla_flags) |= (0x10)); |
| 1632 | brla->brla_sha = vr->vr_arp_sha; |
| 1633 | } |
| 1634 | if (ISSET(vr->vr_flags, VEB_R_F_THA)((vr->vr_flags) & ((1U << 8)))) { |
| 1635 | SET(brla->brla_flags, BRLA_THA)((brla->brla_flags) |= (0x40)); |
| 1636 | brla->brla_tha = vr->vr_arp_tha; |
| 1637 | } |
| 1638 | |
| 1639 | if (ISSET(vr->vr_flags, VEB_R_F_SPA)((vr->vr_flags) & ((1U << 7)))) { |
| 1640 | SET(brla->brla_flags, BRLA_SPA)((brla->brla_flags) |= (0x20)); |
| 1641 | brla->brla_spa = vr->vr_arp_spa; |
| 1642 | } |
| 1643 | if (ISSET(vr->vr_flags, VEB_R_F_TPA)((vr->vr_flags) & ((1U << 9)))) { |
| 1644 | SET(brla->brla_flags, BRLA_TPA)((brla->brla_flags) |= (0x80)); |
| 1645 | brla->brla_tpa = vr->vr_arp_tpa; |
| 1646 | } |
| 1647 | |
| 1648 | brla->brla_op = ntohs(vr->vr_arp_op)(__uint16_t)(__builtin_constant_p(vr->vr_arp_op) ? (__uint16_t )(((__uint16_t)(vr->vr_arp_op) & 0xffU) << 8 | ( (__uint16_t)(vr->vr_arp_op) & 0xff00U) >> 8) : __swap16md (vr->vr_arp_op)); |
| 1649 | } |
| 1650 | |
| 1651 | #if NPF1 > 0 |
| 1652 | if (vr->vr_pftag != 0) |
| 1653 | pf_tag2tagname(vr->vr_pftag, ifbr->ifbr_tagname); |
| 1654 | #endif |
| 1655 | } |
| 1656 | |
| 1657 | static int |
| 1658 | veb_rule_list_get(struct veb_softc *sc, struct ifbrlconf *ifbrl) |
| 1659 | { |
| 1660 | struct veb_port *p; |
| 1661 | struct veb_rule *vr; |
| 1662 | struct ifbrlreq *ifbr, *ifbrs; |
| 1663 | int error = 0; |
| 1664 | size_t len; |
| 1665 | |
| 1666 | p = veb_port_get(sc, ifbrl->ifbrl_ifsname); |
| 1667 | if (p == NULL((void *)0)) |
| 1668 | return (ESRCH3); |
| 1669 | |
| 1670 | len = p->p_nvrl; /* estimate */ |
| 1671 | if (ifbrl->ifbrl_len == 0 || len == 0) { |
| 1672 | ifbrl->ifbrl_len = len * sizeof(*ifbrs); |
| 1673 | goto port_put; |
| 1674 | } |
| 1675 | |
| 1676 | error = rw_enter(&sc->sc_rule_lock, RW_READ0x0002UL|RW_INTR0x0010UL); |
| 1677 | if (error != 0) |
| 1678 | goto port_put; |
| 1679 | |
| 1680 | ifbrs = mallocarray(p->p_nvrl, sizeof(*ifbrs), M_TEMP127, |
| 1681 | M_WAITOK0x0001|M_CANFAIL0x0004|M_ZERO0x0008); |
| 1682 | if (ifbrs == NULL((void *)0)) { |
| 1683 | rw_exit(&sc->sc_rule_lock); |
| 1684 | goto port_put; |
| 1685 | } |
| 1686 | len = p->p_nvrl * sizeof(*ifbrs); |
| 1687 | |
| 1688 | ifbr = ifbrs; |
| 1689 | TAILQ_FOREACH(vr, &p->p_vrl, vr_entry)for((vr) = ((&p->p_vrl)->tqh_first); (vr) != ((void *)0); (vr) = ((vr)->vr_entry.tqe_next)) { |
| 1690 | strlcpy(ifbr->ifbr_name, sc->sc_if.if_xname, |
| 1691 | sizeof(ifbr->ifbr_name)); |
| 1692 | strlcpy(ifbr->ifbr_ifsname, p->p_ifp0->if_xname, |
| 1693 | sizeof(ifbr->ifbr_ifsname)); |
| 1694 | veb_rule2ifbr(ifbr, vr); |
| 1695 | |
| 1696 | ifbr++; |
| 1697 | } |
| 1698 | |
| 1699 | rw_exit(&sc->sc_rule_lock); |
| 1700 | |
| 1701 | error = copyout(ifbrs, ifbrl->ifbrl_bufifbrl_ifbrlu.ifbrlu_buf, min(len, ifbrl->ifbrl_len)); |
| 1702 | if (error == 0) |
| 1703 | ifbrl->ifbrl_len = len; |
| 1704 | free(ifbrs, M_TEMP127, len); |
| 1705 | |
| 1706 | port_put: |
| 1707 | veb_port_put(sc, p); |
| 1708 | return (error); |
| 1709 | } |
| 1710 | |
| 1711 | static int |
| 1712 | veb_port_list(struct veb_softc *sc, struct ifbifconf *bifc) |
| 1713 | { |
| 1714 | struct ifnet *ifp = &sc->sc_if; |
| 1715 | struct veb_port *p; |
| 1716 | struct ifnet *ifp0; |
| 1717 | struct ifbreq breq; |
| 1718 | int n = 0, error = 0; |
| 1719 | |
| 1720 | NET_ASSERT_LOCKED()do { int _s = rw_status(&netlock); if ((splassert_ctl > 0) && (_s != 0x0001UL && _s != 0x0002UL)) splassert_fail (0x0002UL, _s, __func__); } while (0); |
| 1721 | |
| 1722 | if (bifc->ifbic_len == 0) { |
| 1723 | n = sc->sc_ports.l_count + sc->sc_spans.l_count; |
| 1724 | goto done; |
| 1725 | } |
| 1726 | |
| 1727 | SMR_TAILQ_FOREACH_LOCKED(p, &sc->sc_ports.l_list, p_entry)for((p) = ((&sc->sc_ports.l_list)->smr_tqh_first); ( p)!= ((void *)0); (p) = ((p)->p_entry.smr_tqe_next)) { |
| 1728 | if (bifc->ifbic_len < sizeof(breq)) |
| 1729 | break; |
| 1730 | |
| 1731 | memset(&breq, 0, sizeof(breq))__builtin_memset((&breq), (0), (sizeof(breq))); |
| 1732 | |
| 1733 | ifp0 = p->p_ifp0; |
| 1734 | |
| 1735 | strlcpy(breq.ifbr_name, ifp->if_xname, IFNAMSIZ16); |
| 1736 | strlcpy(breq.ifbr_ifsname, ifp0->if_xname, IFNAMSIZ16); |
| 1737 | |
| 1738 | breq.ifbr_ifsflags = p->p_bif_flags; |
| 1739 | breq.ifbr_portno = ifp0->if_index; |
| 1740 | breq.ifbr_protected = p->p_protected; |
| 1741 | if ((error = copyout(&breq, bifc->ifbic_reqifbic_ifbicu.ifbicu_req + n, |
| 1742 | sizeof(breq))) != 0) |
| 1743 | goto done; |
| 1744 | |
| 1745 | bifc->ifbic_len -= sizeof(breq); |
| 1746 | n++; |
| 1747 | } |
| 1748 | |
| 1749 | SMR_TAILQ_FOREACH_LOCKED(p, &sc->sc_spans.l_list, p_entry)for((p) = ((&sc->sc_spans.l_list)->smr_tqh_first); ( p)!= ((void *)0); (p) = ((p)->p_entry.smr_tqe_next)) { |
| 1750 | if (bifc->ifbic_len < sizeof(breq)) |
| 1751 | break; |
| 1752 | |
| 1753 | memset(&breq, 0, sizeof(breq))__builtin_memset((&breq), (0), (sizeof(breq))); |
| 1754 | |
| 1755 | strlcpy(breq.ifbr_name, ifp->if_xname, IFNAMSIZ16); |
| 1756 | strlcpy(breq.ifbr_ifsname, p->p_ifp0->if_xname, IFNAMSIZ16); |
| 1757 | |
| 1758 | breq.ifbr_ifsflags = p->p_bif_flags; |
| 1759 | if ((error = copyout(&breq, bifc->ifbic_reqifbic_ifbicu.ifbicu_req + n, |
| 1760 | sizeof(breq))) != 0) |
| 1761 | goto done; |
| 1762 | |
| 1763 | bifc->ifbic_len -= sizeof(breq); |
| 1764 | n++; |
| 1765 | } |
| 1766 | |
| 1767 | done: |
| 1768 | bifc->ifbic_len = n * sizeof(breq); |
| 1769 | return (error); |
| 1770 | } |
| 1771 | |
| 1772 | static int |
| 1773 | veb_port_set_flags(struct veb_softc *sc, struct ifbreq *ifbr) |
| 1774 | { |
| 1775 | struct veb_port *p; |
| 1776 | |
| 1777 | if (ISSET(ifbr->ifbr_ifsflags, ~VEB_IFBIF_FLAGS)((ifbr->ifbr_ifsflags) & (~(0x0001|0x0002|0x0004)))) |
| 1778 | return (EINVAL22); |
| 1779 | |
| 1780 | p = veb_port_get(sc, ifbr->ifbr_ifsname); |
| 1781 | if (p == NULL((void *)0)) |
| 1782 | return (ESRCH3); |
| 1783 | |
| 1784 | p->p_bif_flags = ifbr->ifbr_ifsflags; |
| 1785 | |
| 1786 | veb_port_put(sc, p); |
| 1787 | return (0); |
| 1788 | } |
| 1789 | |
| 1790 | static int |
| 1791 | veb_port_get_flags(struct veb_softc *sc, struct ifbreq *ifbr) |
| 1792 | { |
| 1793 | struct veb_port *p; |
| 1794 | |
| 1795 | p = veb_port_get(sc, ifbr->ifbr_ifsname); |
| 1796 | if (p == NULL((void *)0)) |
| 1797 | return (ESRCH3); |
| 1798 | |
| 1799 | ifbr->ifbr_ifsflags = p->p_bif_flags; |
| 1800 | ifbr->ifbr_portno = p->p_ifp0->if_index; |
| 1801 | ifbr->ifbr_protected = p->p_protected; |
| 1802 | |
| 1803 | veb_port_put(sc, p); |
| 1804 | return (0); |
| 1805 | } |
| 1806 | |
| 1807 | static int |
| 1808 | veb_add_addr(struct veb_softc *sc, const struct ifbareq *ifba) |
| 1809 | { |
| 1810 | struct veb_port *p; |
| 1811 | int error = 0; |
| 1812 | unsigned int type; |
| 1813 | |
| 1814 | if (ISSET(ifba->ifba_flags, ~IFBAF_TYPEMASK)((ifba->ifba_flags) & (~0x03))) |
| 1815 | return (EINVAL22); |
| 1816 | switch (ifba->ifba_flags & IFBAF_TYPEMASK0x03) { |
| 1817 | case IFBAF_DYNAMIC0x00: |
| 1818 | type = EBE_DYNAMIC0x0; |
| 1819 | break; |
| 1820 | case IFBAF_STATIC0x01: |
| 1821 | type = EBE_STATIC0x1; |
| 1822 | break; |
| 1823 | default: |
| 1824 | return (EINVAL22); |
| 1825 | } |
| 1826 | |
| 1827 | if (ifba->ifba_dstsa.ss_family != AF_UNSPEC0) |
| 1828 | return (EAFNOSUPPORT47); |
| 1829 | |
| 1830 | p = veb_port_get(sc, ifba->ifba_ifsname); |
| 1831 | if (p == NULL((void *)0)) |
| 1832 | return (ESRCH3); |
| 1833 | |
| 1834 | error = etherbridge_add_addr(&sc->sc_eb, p, &ifba->ifba_dst, type); |
| 1835 | |
| 1836 | veb_port_put(sc, p); |
| 1837 | |
| 1838 | return (error); |
| 1839 | } |
| 1840 | |
| 1841 | static int |
| 1842 | veb_del_addr(struct veb_softc *sc, const struct ifbareq *ifba) |
| 1843 | { |
| 1844 | return (etherbridge_del_addr(&sc->sc_eb, &ifba->ifba_dst)); |
| 1845 | } |
| 1846 | |
| 1847 | static int |
| 1848 | veb_p_ioctl(struct ifnet *ifp0, u_long cmd, caddr_t data) |
| 1849 | { |
| 1850 | const struct ether_brport *eb = ether_brport_get_locked(ifp0); |
| 1851 | struct veb_port *p; |
| 1852 | int error = 0; |
| 1853 | |
| 1854 | KASSERTMSG(eb != NULL,((eb != ((void *)0)) ? (void)0 : panic("kernel %sassertion \"%s\" failed: file \"%s\", line %d" " " "%s: %s called without an ether_brport set", "diagnostic " , "eb != NULL", "/usr/src/sys/net/if_veb.c", 1856, ifp0->if_xname , __func__)) |
| 1855 | "%s: %s called without an ether_brport set",((eb != ((void *)0)) ? (void)0 : panic("kernel %sassertion \"%s\" failed: file \"%s\", line %d" " " "%s: %s called without an ether_brport set", "diagnostic " , "eb != NULL", "/usr/src/sys/net/if_veb.c", 1856, ifp0->if_xname , __func__)) |
| 1856 | ifp0->if_xname, __func__)((eb != ((void *)0)) ? (void)0 : panic("kernel %sassertion \"%s\" failed: file \"%s\", line %d" " " "%s: %s called without an ether_brport set", "diagnostic " , "eb != NULL", "/usr/src/sys/net/if_veb.c", 1856, ifp0->if_xname , __func__)); |
| 1857 | KASSERTMSG((eb->eb_input == veb_port_input) ||(((eb->eb_input == veb_port_input) || (eb->eb_input == veb_span_input )) ? (void)0 : panic("kernel %sassertion \"%s\" failed: file \"%s\", line %d" " " "%s called %s, but eb_input (%p) seems wrong", "diagnostic " , "(eb->eb_input == veb_port_input) || (eb->eb_input == veb_span_input)" , "/usr/src/sys/net/if_veb.c", 1860, ifp0->if_xname, __func__ , eb->eb_input)) |
| 1858 | (eb->eb_input == veb_span_input),(((eb->eb_input == veb_port_input) || (eb->eb_input == veb_span_input )) ? (void)0 : panic("kernel %sassertion \"%s\" failed: file \"%s\", line %d" " " "%s called %s, but eb_input (%p) seems wrong", "diagnostic " , "(eb->eb_input == veb_port_input) || (eb->eb_input == veb_span_input)" , "/usr/src/sys/net/if_veb.c", 1860, ifp0->if_xname, __func__ , eb->eb_input)) |
| 1859 | "%s called %s, but eb_input (%p) seems wrong",(((eb->eb_input == veb_port_input) || (eb->eb_input == veb_span_input )) ? (void)0 : panic("kernel %sassertion \"%s\" failed: file \"%s\", line %d" " " "%s called %s, but eb_input (%p) seems wrong", "diagnostic " , "(eb->eb_input == veb_port_input) || (eb->eb_input == veb_span_input)" , "/usr/src/sys/net/if_veb.c", 1860, ifp0->if_xname, __func__ , eb->eb_input)) |
| 1860 | ifp0->if_xname, __func__, eb->eb_input)(((eb->eb_input == veb_port_input) || (eb->eb_input == veb_span_input )) ? (void)0 : panic("kernel %sassertion \"%s\" failed: file \"%s\", line %d" " " "%s called %s, but eb_input (%p) seems wrong", "diagnostic " , "(eb->eb_input == veb_port_input) || (eb->eb_input == veb_span_input)" , "/usr/src/sys/net/if_veb.c", 1860, ifp0->if_xname, __func__ , eb->eb_input)); |
| 1861 | |
| 1862 | p = eb->eb_port; |
| 1863 | |
| 1864 | switch (cmd) { |
| 1865 | case SIOCSIFADDR((unsigned long)0x80000000 | ((sizeof(struct ifreq) & 0x1fff ) << 16) | ((('i')) << 8) | ((12))): |
| 1866 | error = EBUSY16; |
| 1867 | break; |
| 1868 | |
| 1869 | default: |
| 1870 | error = (*p->p_ioctl)(ifp0, cmd, data); |
| 1871 | break; |
| 1872 | } |
| 1873 | |
| 1874 | return (error); |
| 1875 | } |
| 1876 | |
| 1877 | static int |
| 1878 | veb_p_output(struct ifnet *ifp0, struct mbuf *m, struct sockaddr *dst, |
| 1879 | struct rtentry *rt) |
| 1880 | { |
| 1881 | int (*p_output)(struct ifnet *, struct mbuf *, struct sockaddr *, |
| 1882 | struct rtentry *) = NULL((void *)0); |
| 1883 | const struct ether_brport *eb; |
| 1884 | |
| 1885 | /* restrict transmission to bpf only */ |
| 1886 | if ((m_tag_find(m, PACKET_TAG_DLT0x0100, NULL((void *)0)) == NULL((void *)0))) { |
| 1887 | m_freem(m); |
| 1888 | return (EBUSY16); |
| 1889 | } |
| 1890 | |
| 1891 | smr_read_enter(); |
| 1892 | eb = ether_brport_get(ifp0); |
| 1893 | if (eb != NULL((void *)0) && eb->eb_input == veb_port_input) { |
| 1894 | struct veb_port *p = eb->eb_port; |
| 1895 | p_output = p->p_output; /* code doesn't go away */ |
| 1896 | } |
| 1897 | smr_read_leave(); |
| 1898 | |
| 1899 | if (p_output == NULL((void *)0)) { |
| 1900 | m_freem(m); |
| 1901 | return (ENXIO6); |
| 1902 | } |
| 1903 | |
| 1904 | return ((*p_output)(ifp0, m, dst, rt)); |
| 1905 | } |
| 1906 | |
| 1907 | static void |
| 1908 | veb_p_dtor(struct veb_softc *sc, struct veb_port *p, const char *op) |
| 1909 | { |
| 1910 | struct ifnet *ifp = &sc->sc_if; |
| 1911 | struct ifnet *ifp0 = p->p_ifp0; |
| 1912 | struct veb_ports *port_list; |
| 1913 | |
| 1914 | DPRINTF(sc, "%s %s: destroying port\n",do { if ((((sc)->sc_if.if_flags) & (0x4))) printf("%s %s: destroying port\n" , ifp->if_xname, ifp0->if_xname); } while (0) |
| 1915 | ifp->if_xname, ifp0->if_xname)do { if ((((sc)->sc_if.if_flags) & (0x4))) printf("%s %s: destroying port\n" , ifp->if_xname, ifp0->if_xname); } while (0); |
| 1916 | |
| 1917 | ifp0->if_ioctl = p->p_ioctl; |
| 1918 | ifp0->if_output = p->p_output; |
| 1919 | |
| 1920 | ether_brport_clr(ifp0); |
| 1921 | |
| 1922 | if_detachhook_del(ifp0, &p->p_dtask); |
| 1923 | if_linkstatehook_del(ifp0, &p->p_ltask); |
| 1924 | |
| 1925 | if (ISSET(p->p_bif_flags, IFBIF_SPAN)((p->p_bif_flags) & (0x0100))) { |
| 1926 | port_list = &sc->sc_spans; |
| 1927 | } else { |
| 1928 | if (ifpromisc(ifp0, 0) != 0) { |
| 1929 | log(LOG_WARNING4, "%s %s: unable to disable promisc\n", |
| 1930 | ifp->if_xname, ifp0->if_xname); |
| 1931 | } |
| 1932 | |
| 1933 | etherbridge_detach_port(&sc->sc_eb, p); |
| 1934 | |
| 1935 | port_list = &sc->sc_ports; |
| 1936 | } |
| 1937 | SMR_TAILQ_REMOVE_LOCKED(&port_list->l_list, p, p_entry)do { if ((p)->p_entry.smr_tqe_next != ((void *)0)) (p)-> p_entry.smr_tqe_next->p_entry.smr_tqe_prev = (p)->p_entry .smr_tqe_prev; else (&port_list->l_list)->smr_tqh_last = (p)->p_entry.smr_tqe_prev; *(p)->p_entry.smr_tqe_prev = (p)->p_entry.smr_tqe_next; } while (0); |
| 1938 | port_list->l_count--; |
| 1939 | |
| 1940 | refcnt_finalize(&p->p_refs, "vebpdtor"); |
| 1941 | smr_barrier()smr_barrier_impl(0); |
| 1942 | |
| 1943 | veb_rule_list_free(TAILQ_FIRST(&p->p_vrl)((&p->p_vrl)->tqh_first)); |
| 1944 | |
| 1945 | if_put(ifp0); |
| 1946 | free(p, M_DEVBUF2, sizeof(*p)); |
| 1947 | } |
| 1948 | |
| 1949 | static void |
| 1950 | veb_p_detach(void *arg) |
| 1951 | { |
| 1952 | struct veb_port *p = arg; |
| 1953 | struct veb_softc *sc = p->p_veb; |
| 1954 | |
| 1955 | veb_p_dtor(sc, p, "detach"); |
| 1956 | |
| 1957 | NET_ASSERT_LOCKED()do { int _s = rw_status(&netlock); if ((splassert_ctl > 0) && (_s != 0x0001UL && _s != 0x0002UL)) splassert_fail (0x0002UL, _s, __func__); } while (0); |
| 1958 | } |
| 1959 | |
| 1960 | static int |
| 1961 | veb_p_active(struct veb_port *p) |
| 1962 | { |
| 1963 | struct ifnet *ifp0 = p->p_ifp0; |
| 1964 | |
| 1965 | return (ISSET(ifp0->if_flags, IFF_RUNNING)((ifp0->if_flags) & (0x40)) && |
| 1966 | LINK_STATE_IS_UP(ifp0->if_link_state)((ifp0->if_data.ifi_link_state) >= 4 || (ifp0->if_data .ifi_link_state) == 0)); |
| 1967 | } |
| 1968 | |
| 1969 | static void |
| 1970 | veb_p_linkch(void *arg) |
| 1971 | { |
| 1972 | struct veb_port *p = arg; |
| 1973 | u_char link_state = LINK_STATE_FULL_DUPLEX6; |
| 1974 | |
| 1975 | NET_ASSERT_LOCKED()do { int _s = rw_status(&netlock); if ((splassert_ctl > 0) && (_s != 0x0001UL && _s != 0x0002UL)) splassert_fail (0x0002UL, _s, __func__); } while (0); |
| 1976 | |
| 1977 | if (!veb_p_active(p)) |
| 1978 | link_state = LINK_STATE_DOWN2; |
| 1979 | |
| 1980 | p->p_link_state = link_state; |
| 1981 | } |
| 1982 | |
| 1983 | static int |
| 1984 | veb_up(struct veb_softc *sc) |
| 1985 | { |
| 1986 | struct ifnet *ifp = &sc->sc_if; |
| 1987 | int error; |
| 1988 | |
| 1989 | error = etherbridge_up(&sc->sc_eb); |
| 1990 | if (error != 0) |
| 1991 | return (error); |
| 1992 | |
| 1993 | NET_ASSERT_LOCKED()do { int _s = rw_status(&netlock); if ((splassert_ctl > 0) && (_s != 0x0001UL && _s != 0x0002UL)) splassert_fail (0x0002UL, _s, __func__); } while (0); |
| 1994 | SET(ifp->if_flags, IFF_RUNNING)((ifp->if_flags) |= (0x40)); |
| 1995 | |
| 1996 | return (0); |
| 1997 | } |
| 1998 | |
| 1999 | static int |
| 2000 | veb_iff(struct veb_softc *sc) |
| 2001 | { |
| 2002 | return (0); |
| 2003 | } |
| 2004 | |
| 2005 | static int |
| 2006 | veb_down(struct veb_softc *sc) |
| 2007 | { |
| 2008 | struct ifnet *ifp = &sc->sc_if; |
| 2009 | int error; |
| 2010 | |
| 2011 | error = etherbridge_down(&sc->sc_eb); |
| 2012 | if (error != 0) |
| 2013 | return (0); |
| 2014 | |
| 2015 | NET_ASSERT_LOCKED()do { int _s = rw_status(&netlock); if ((splassert_ctl > 0) && (_s != 0x0001UL && _s != 0x0002UL)) splassert_fail (0x0002UL, _s, __func__); } while (0); |
| 2016 | CLR(ifp->if_flags, IFF_RUNNING)((ifp->if_flags) &= ~(0x40)); |
| 2017 | |
| 2018 | return (0); |
| 2019 | } |
| 2020 | |
| 2021 | static int |
| 2022 | veb_eb_port_cmp(void *arg, void *a, void *b) |
| 2023 | { |
| 2024 | struct veb_port *pa = a, *pb = b; |
| 2025 | return (pa == pb); |
| 2026 | } |
| 2027 | |
| 2028 | static void * |
| 2029 | veb_eb_port_take(void *arg, void *port) |
| 2030 | { |
| 2031 | struct veb_port *p = port; |
| 2032 | |
| 2033 | refcnt_take(&p->p_refs); |
| 2034 | |
| 2035 | return (p); |
| 2036 | } |
| 2037 | |
| 2038 | static void |
| 2039 | veb_eb_port_rele(void *arg, void *port) |
| 2040 | { |
| 2041 | struct veb_port *p = port; |
| 2042 | |
| 2043 | refcnt_rele_wake(&p->p_refs); |
| 2044 | } |
| 2045 | |
| 2046 | static void |
| 2047 | veb_eb_brport_take(void *port) |
| 2048 | { |
| 2049 | veb_eb_port_take(NULL((void *)0), port); |
| 2050 | } |
| 2051 | |
| 2052 | static void |
| 2053 | veb_eb_brport_rele(void *port) |
| 2054 | { |
| 2055 | veb_eb_port_rele(NULL((void *)0), port); |
| 2056 | } |
| 2057 | |
| 2058 | static size_t |
| 2059 | veb_eb_port_ifname(void *arg, char *dst, size_t len, void *port) |
| 2060 | { |
| 2061 | struct veb_port *p = port; |
| 2062 | |
| 2063 | return (strlcpy(dst, p->p_ifp0->if_xname, len)); |
| 2064 | } |
| 2065 | |
| 2066 | static void |
| 2067 | veb_eb_port_sa(void *arg, struct sockaddr_storage *ss, void *port) |
| 2068 | { |
| 2069 | ss->ss_family = AF_UNSPEC0; |
| 2070 | } |
| 2071 | |
| 2072 | /* |
| 2073 | * virtual ethernet bridge port |
| 2074 | */ |
| 2075 | |
| 2076 | static int |
| 2077 | vport_clone_create(struct if_clone *ifc, int unit) |
| 2078 | { |
| 2079 | struct vport_softc *sc; |
| 2080 | struct ifnet *ifp; |
| 2081 | |
| 2082 | sc = malloc(sizeof(*sc), M_DEVBUF2, M_WAITOK0x0001|M_ZERO0x0008|M_CANFAIL0x0004); |
| 2083 | if (sc == NULL((void *)0)) |
| 2084 | return (ENOMEM12); |
| 2085 | |
| 2086 | ifp = &sc->sc_ac.ac_if; |
| 2087 | |
| 2088 | snprintf(ifp->if_xname, sizeof(ifp->if_xname), "%s%d", |
| 2089 | ifc->ifc_name, unit); |
| 2090 | |
| 2091 | ifp->if_softc = sc; |
| 2092 | ifp->if_typeif_data.ifi_type = IFT_ETHER0x06; |
| 2093 | ifp->if_hardmtu = ETHER_MAX_HARDMTU_LEN65435; |
| 2094 | ifp->if_ioctl = vport_ioctl; |
| 2095 | ifp->if_enqueue = vport_enqueue; |
| 2096 | ifp->if_qstart = vport_start; |
| 2097 | ifp->if_flags = IFF_BROADCAST0x2 | IFF_SIMPLEX0x800 | IFF_MULTICAST0x8000; |
| 2098 | ifp->if_xflags = IFXF_CLONED0x2 | IFXF_MPSAFE0x1; |
| 2099 | ether_fakeaddr(ifp); |
| 2100 | |
| 2101 | if_counters_alloc(ifp); |
| 2102 | if_attach(ifp); |
| 2103 | ether_ifattach(ifp); |
| 2104 | |
| 2105 | return (0); |
| 2106 | } |
| 2107 | |
| 2108 | static int |
| 2109 | vport_clone_destroy(struct ifnet *ifp) |
| 2110 | { |
| 2111 | struct vport_softc *sc = ifp->if_softc; |
| 2112 | |
| 2113 | NET_LOCK()do { rw_enter_write(&netlock); } while (0); |
| 2114 | sc->sc_dead = 1; |
| 2115 | |
| 2116 | if (ISSET(ifp->if_flags, IFF_RUNNING)((ifp->if_flags) & (0x40))) |
| 2117 | vport_down(sc); |
| 2118 | NET_UNLOCK()do { rw_exit_write(&netlock); } while (0); |
| 2119 | |
| 2120 | ether_ifdetach(ifp); |
| 2121 | if_detach(ifp); |
| 2122 | |
| 2123 | free(sc, M_DEVBUF2, sizeof(*sc)); |
| 2124 | |
| 2125 | return (0); |
| 2126 | } |
| 2127 | |
| 2128 | static int |
| 2129 | vport_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) |
| 2130 | { |
| 2131 | struct vport_softc *sc = ifp->if_softc; |
| 2132 | int error = 0; |
| 2133 | |
| 2134 | if (sc->sc_dead) |
| 2135 | return (ENXIO6); |
| 2136 | |
| 2137 | switch (cmd) { |
| 2138 | case SIOCSIFFLAGS((unsigned long)0x80000000 | ((sizeof(struct ifreq) & 0x1fff ) << 16) | ((('i')) << 8) | ((16))): |
| 2139 | if (ISSET(ifp->if_flags, IFF_UP)((ifp->if_flags) & (0x1))) { |
| 2140 | if (!ISSET(ifp->if_flags, IFF_RUNNING)((ifp->if_flags) & (0x40))) |
| 2141 | error = vport_up(sc); |
| 2142 | } else { |
| 2143 | if (ISSET(ifp->if_flags, IFF_RUNNING)((ifp->if_flags) & (0x40))) |
| 2144 | error = vport_down(sc); |
| 2145 | } |
| 2146 | break; |
| 2147 | |
| 2148 | case SIOCADDMULTI((unsigned long)0x80000000 | ((sizeof(struct ifreq) & 0x1fff ) << 16) | ((('i')) << 8) | ((49))): |
| 2149 | case SIOCDELMULTI((unsigned long)0x80000000 | ((sizeof(struct ifreq) & 0x1fff ) << 16) | ((('i')) << 8) | ((50))): |
| 2150 | break; |
| 2151 | |
| 2152 | default: |
| 2153 | error = ether_ioctl(ifp, &sc->sc_ac, cmd, data); |
| 2154 | break; |
| 2155 | } |
| 2156 | |
| 2157 | if (error == ENETRESET52) |
| 2158 | error = vport_iff(sc); |
| 2159 | |
| 2160 | return (error); |
| 2161 | } |
| 2162 | |
| 2163 | static int |
| 2164 | vport_up(struct vport_softc *sc) |
| 2165 | { |
| 2166 | struct ifnet *ifp = &sc->sc_ac.ac_if; |
| 2167 | |
| 2168 | NET_ASSERT_LOCKED()do { int _s = rw_status(&netlock); if ((splassert_ctl > 0) && (_s != 0x0001UL && _s != 0x0002UL)) splassert_fail (0x0002UL, _s, __func__); } while (0); |
| 2169 | SET(ifp->if_flags, IFF_RUNNING)((ifp->if_flags) |= (0x40)); |
| 2170 | |
| 2171 | return (0); |
| 2172 | } |
| 2173 | |
| 2174 | static int |
| 2175 | vport_iff(struct vport_softc *sc) |
| 2176 | { |
| 2177 | return (0); |
| 2178 | } |
| 2179 | |
| 2180 | static int |
| 2181 | vport_down(struct vport_softc *sc) |
| 2182 | { |
| 2183 | struct ifnet *ifp = &sc->sc_ac.ac_if; |
| 2184 | |
| 2185 | NET_ASSERT_LOCKED()do { int _s = rw_status(&netlock); if ((splassert_ctl > 0) && (_s != 0x0001UL && _s != 0x0002UL)) splassert_fail (0x0002UL, _s, __func__); } while (0); |
| 2186 | CLR(ifp->if_flags, IFF_RUNNING)((ifp->if_flags) &= ~(0x40)); |
| 2187 | |
| 2188 | return (0); |
| 2189 | } |
| 2190 | |
| 2191 | static int |
| 2192 | vport_if_enqueue(struct ifnet *ifp, struct mbuf *m) |
| 2193 | { |
| 2194 | /* |
| 2195 | * switching an l2 packet toward a vport means pushing it |
| 2196 | * into the network stack. this function exists to make |
| 2197 | * if_vinput compat with veb calling if_enqueue. |
| 2198 | */ |
| 2199 | |
| 2200 | if_vinput(ifp, m); |
| 2201 | |
| 2202 | return (0); |
| 2203 | } |
| 2204 | |
| 2205 | static int |
| 2206 | vport_enqueue(struct ifnet *ifp, struct mbuf *m) |
| 2207 | { |
| 2208 | struct arpcom *ac; |
| 2209 | const struct ether_brport *eb; |
| 2210 | int error = ENETDOWN50; |
| 2211 | #if NBPFILTER1 > 0 |
| 2212 | caddr_t if_bpf; |
| 2213 | #endif |
| 2214 | |
| 2215 | /* |
| 2216 | * a packet sent from the l3 stack out a vport goes into |
| 2217 | * veb for switching out another port. |
| 2218 | */ |
| 2219 | |
| 2220 | #if NPF1 > 0 |
| 2221 | /* |
| 2222 | * there's no relationship between pf states in the l3 stack |
| 2223 | * and the l2 bridge. |
| 2224 | */ |
| 2225 | pf_pkt_addr_changed(m); |
| 2226 | #endif |
| 2227 | |
| 2228 | ac = (struct arpcom *)ifp; |
| 2229 | |
| 2230 | smr_read_enter(); |
| 2231 | eb = SMR_PTR_GET(&ac->ac_brport)({ typeof(*&ac->ac_brport) __tmp = *(volatile typeof(* &ac->ac_brport) *)&(*&ac->ac_brport); membar_datadep_consumer (); __tmp; }); |
| 2232 | if (eb != NULL((void *)0)) |
| 2233 | eb->eb_port_take(eb->eb_port); |
| 2234 | smr_read_leave(); |
| 2235 | if (eb != NULL((void *)0)) { |
| 2236 | struct mbuf *(*input)(struct ifnet *, struct mbuf *, |
| 2237 | uint64_t, void *) = eb->eb_input; |
| 2238 | struct ether_header *eh; |
| 2239 | uint64_t dst; |
| 2240 | |
| 2241 | counters_pkt(ifp->if_counters, ifc_opackets, ifc_obytes, |
| 2242 | m->m_pkthdrM_dat.MH.MH_pkthdr.len); |
| 2243 | |
| 2244 | #if NBPFILTER1 > 0 |
| 2245 | if_bpf = READ_ONCE(ifp->if_bpf)({ typeof(ifp->if_bpf) __tmp = *(volatile typeof(ifp->if_bpf ) *)&(ifp->if_bpf); membar_datadep_consumer(); __tmp; } ); |
| 2246 | if (if_bpf != NULL((void *)0)) |
| 2247 | bpf_mtap_ether(if_bpf, m, BPF_DIRECTION_OUT(1 << 1)); |
| 2248 | #endif |
| 2249 | |
| 2250 | eh = mtod(m, struct ether_header *)((struct ether_header *)((m)->m_hdr.mh_data)); |
| 2251 | dst = ether_addr_to_e64((struct ether_addr *)eh->ether_dhost); |
| 2252 | |
| 2253 | if (input == veb_vport_input) |
| 2254 | input = veb_port_input; |
| 2255 | m = (*input)(ifp, m, dst, eb->eb_port); |
| 2256 | |
| 2257 | error = 0; |
| 2258 | |
| 2259 | eb->eb_port_rele(eb->eb_port); |
| 2260 | } |
| 2261 | |
| 2262 | m_freem(m); |
| 2263 | |
| 2264 | return (error); |
| 2265 | } |
| 2266 | |
| 2267 | static void |
| 2268 | vport_start(struct ifqueue *ifq) |
| 2269 | { |
| 2270 | ifq_purge(ifq); |
| 2271 | } |