X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fdpif-netdev.c;h=d48d7ae1f030568656608a9426316a6e1746a659;hb=135faefe4af624489ac310810a5ffb5223606252;hp=6b2df7d1aa5cbfd62ee5a578e13868bf6e368a4f;hpb=82272eded1ede569bcec3ba4ab212e5e3fb632ff;p=sliver-openvswitch.git diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c index 6b2df7d1a..d48d7ae1f 100644 --- a/lib/dpif-netdev.c +++ b/lib/dpif-netdev.c @@ -114,7 +114,7 @@ struct dp_netdev_flow { long long int used; /* Last used time, in monotonic msecs. */ long long int packet_count; /* Number of packets matched. */ long long int byte_count; /* Number of bytes matched. */ - uint16_t tcp_ctl; /* Bitwise-OR of seen tcp_ctl values. */ + ovs_be16 tcp_ctl; /* Bitwise-OR of seen tcp_ctl values. */ /* Actions. */ struct nlattr *actions; @@ -146,7 +146,7 @@ static int do_add_port(struct dp_netdev *, const char *devname, static int do_del_port(struct dp_netdev *, uint16_t port_no); static int dpif_netdev_open(const struct dpif_class *, const char *name, bool create, struct dpif **); -static int dp_netdev_output_control(struct dp_netdev *, const struct ofpbuf *, +static int dp_netdev_output_userspace(struct dp_netdev *, const struct ofpbuf *, int queue_no, const struct flow *, uint64_t arg); static int dp_netdev_execute_actions(struct dp_netdev *, @@ -375,7 +375,7 @@ do_add_port(struct dp_netdev *dp, const char *devname, const char *type, port->internal = internal; netdev_get_mtu(netdev, &mtu); - if (mtu > max_mtu) { + if (mtu != INT_MAX && mtu > max_mtu) { max_mtu = mtu; } @@ -701,43 +701,42 @@ dpif_netdev_validate_actions(const struct nlattr *actions, } switch (type) { - case ODPAT_OUTPUT: + case ODP_ACTION_ATTR_OUTPUT: if (nl_attr_get_u32(a) >= MAX_PORTS) { return EINVAL; } break; - case ODPAT_CONTROLLER: - case ODPAT_DROP_SPOOFED_ARP: + case ODP_ACTION_ATTR_USERSPACE: break; - case ODPAT_SET_DL_TCI: + case ODP_ACTION_ATTR_SET_DL_TCI: *mutates = true; if (nl_attr_get_be16(a) & htons(VLAN_CFI)) { return EINVAL; } break; - case ODPAT_SET_NW_TOS: + case ODP_ACTION_ATTR_SET_NW_TOS: *mutates = true; if (nl_attr_get_u8(a) & IP_ECN_MASK) { return EINVAL; } break; - case ODPAT_STRIP_VLAN: - case ODPAT_SET_DL_SRC: - case ODPAT_SET_DL_DST: - case ODPAT_SET_NW_SRC: - case ODPAT_SET_NW_DST: - case ODPAT_SET_TP_SRC: - case ODPAT_SET_TP_DST: + case ODP_ACTION_ATTR_STRIP_VLAN: + case ODP_ACTION_ATTR_SET_DL_SRC: + case ODP_ACTION_ATTR_SET_DL_DST: + case ODP_ACTION_ATTR_SET_NW_SRC: + case ODP_ACTION_ATTR_SET_NW_DST: + case ODP_ACTION_ATTR_SET_TP_SRC: + case ODP_ACTION_ATTR_SET_TP_DST: *mutates = true; break; - case ODPAT_SET_TUNNEL: - case ODPAT_SET_PRIORITY: - case ODPAT_POP_PRIORITY: + case ODP_ACTION_ATTR_SET_TUNNEL: + case ODP_ACTION_ATTR_SET_PRIORITY: + case ODP_ACTION_ATTR_POP_PRIORITY: default: return EOPNOTSUPP; } @@ -872,7 +871,7 @@ struct dp_netdev_flow_state { uint32_t bucket; uint32_t offset; struct nlattr *actions; - uint32_t keybuf[ODPUTIL_FLOW_KEY_U32S]; + struct odputil_keybuf keybuf; struct dpif_flow_stats stats; }; @@ -909,9 +908,8 @@ dpif_netdev_flow_dump_next(const struct dpif *dpif, void *state_, if (key) { struct ofpbuf buf; - ofpbuf_use_stack(&buf, state->keybuf, sizeof state->keybuf); + ofpbuf_use_stack(&buf, &state->keybuf, sizeof state->keybuf); odp_flow_key_from_flow(&buf, &flow->key); - assert(buf.base == state->keybuf); *key = buf.data; *key_len = buf.size; @@ -945,6 +943,7 @@ dpif_netdev_flow_dump_done(const struct dpif *dpif OVS_UNUSED, void *state_) static int dpif_netdev_execute(struct dpif *dpif, + const struct nlattr *key_attrs, size_t key_len, const struct nlattr *actions, size_t actions_len, const struct ofpbuf *packet) { @@ -976,7 +975,10 @@ dpif_netdev_execute(struct dpif *dpif, * if we don't. */ copy = *packet; } + flow_extract(©, 0, -1, &key); + dpif_netdev_flow_from_nlattrs(key_attrs, key_len, &key); + error = dp_netdev_execute_actions(dp, ©, &key, actions, actions_len); if (mutates) { ofpbuf_uninit(©); @@ -1086,84 +1088,46 @@ dp_netdev_port_input(struct dp_netdev *dp, struct dp_netdev_port *port, dp->n_hit++; } else { dp->n_missed++; - dp_netdev_output_control(dp, packet, DPIF_UC_MISS, &key, 0); + dp_netdev_output_userspace(dp, packet, DPIF_UC_MISS, &key, 0); } } static void -dp_netdev_run(void) +dpif_netdev_run(struct dpif *dpif) { - struct shash_node *node; + struct dp_netdev *dp = get_dp_netdev(dpif); + struct dp_netdev_port *port; struct ofpbuf packet; ofpbuf_init(&packet, DP_NETDEV_HEADROOM + VLAN_ETH_HEADER_LEN + max_mtu); - SHASH_FOR_EACH (node, &dp_netdevs) { - struct dp_netdev *dp = node->data; - struct dp_netdev_port *port; - - LIST_FOR_EACH (port, node, &dp->port_list) { - int error; - /* Reset packet contents. */ - ofpbuf_clear(&packet); - ofpbuf_reserve(&packet, DP_NETDEV_HEADROOM); - - error = netdev_recv(port->netdev, &packet); - if (!error) { - dp_netdev_port_input(dp, port, &packet); - } else if (error != EAGAIN && error != EOPNOTSUPP) { - static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); - VLOG_ERR_RL(&rl, "error receiving data from %s: %s", - netdev_get_name(port->netdev), strerror(error)); - } + LIST_FOR_EACH (port, node, &dp->port_list) { + int error; + + /* Reset packet contents. */ + ofpbuf_clear(&packet); + ofpbuf_reserve(&packet, DP_NETDEV_HEADROOM); + + error = netdev_recv(port->netdev, &packet); + if (!error) { + dp_netdev_port_input(dp, port, &packet); + } else if (error != EAGAIN && error != EOPNOTSUPP) { + static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); + VLOG_ERR_RL(&rl, "error receiving data from %s: %s", + netdev_get_name(port->netdev), strerror(error)); } } ofpbuf_uninit(&packet); } static void -dp_netdev_wait(void) -{ - struct shash_node *node; - - SHASH_FOR_EACH (node, &dp_netdevs) { - struct dp_netdev *dp = node->data; - struct dp_netdev_port *port; - - LIST_FOR_EACH (port, node, &dp->port_list) { - netdev_recv_wait(port->netdev); - } - } -} - - -/* Modify the TCI field of 'packet'. If a VLAN tag is present, its TCI field - * is replaced by 'tci'. If a VLAN tag is not present, one is added with the - * TCI field set to 'tci'. - */ -static void -dp_netdev_set_dl_tci(struct ofpbuf *packet, uint16_t tci) +dpif_netdev_wait(struct dpif *dpif) { - struct vlan_eth_header *veh; - struct eth_header *eh; + struct dp_netdev *dp = get_dp_netdev(dpif); + struct dp_netdev_port *port; - eh = packet->l2; - if (packet->size >= sizeof(struct vlan_eth_header) - && eh->eth_type == htons(ETH_TYPE_VLAN)) { - veh = packet->l2; - veh->veth_tci = tci; - } else { - /* Insert new 802.1Q header. */ - struct vlan_eth_header tmp; - memcpy(tmp.veth_dst, eh->eth_dst, ETH_ADDR_LEN); - memcpy(tmp.veth_src, eh->eth_src, ETH_ADDR_LEN); - tmp.veth_type = htons(ETH_TYPE_VLAN); - tmp.veth_tci = tci; - tmp.veth_next_type = eh->eth_type; - - veh = ofpbuf_push_uninit(packet, VLAN_HEADER_LEN); - memcpy(veh, &tmp, sizeof tmp); - packet->l2 = (char*)packet->l2 - VLAN_HEADER_LEN; + LIST_FOR_EACH (port, node, &dp->port_list) { + netdev_recv_wait(port->netdev); } } @@ -1213,18 +1177,18 @@ dp_netdev_set_nw_addr(struct ofpbuf *packet, const struct flow *key, struct ip_header *nh = packet->l3; ovs_be32 ip = nl_attr_get_be32(a); uint16_t type = nl_attr_type(a); - uint32_t *field; + ovs_be32 *field; - field = type == ODPAT_SET_NW_SRC ? &nh->ip_src : &nh->ip_dst; - if (key->nw_proto == IP_TYPE_TCP && packet->l7) { + field = type == ODP_ACTION_ATTR_SET_NW_SRC ? &nh->ip_src : &nh->ip_dst; + if (key->nw_proto == IPPROTO_TCP && packet->l7) { struct tcp_header *th = packet->l4; th->tcp_csum = recalc_csum32(th->tcp_csum, *field, ip); - } else if (key->nw_proto == IP_TYPE_UDP && packet->l7) { + } else if (key->nw_proto == IPPROTO_UDP && packet->l7) { struct udp_header *uh = packet->l4; if (uh->udp_csum) { uh->udp_csum = recalc_csum32(uh->udp_csum, *field, ip); if (!uh->udp_csum) { - uh->udp_csum = 0xffff; + uh->udp_csum = htons(0xffff); } } } @@ -1257,16 +1221,18 @@ dp_netdev_set_tp_port(struct ofpbuf *packet, const struct flow *key, if (is_ip(packet, key)) { uint16_t type = nl_attr_type(a); ovs_be16 port = nl_attr_get_be16(a); - uint16_t *field; + ovs_be16 *field; if (key->nw_proto == IPPROTO_TCP && packet->l7) { struct tcp_header *th = packet->l4; - field = type == ODPAT_SET_TP_SRC ? &th->tcp_src : &th->tcp_dst; + field = (type == ODP_ACTION_ATTR_SET_TP_SRC + ? &th->tcp_src : &th->tcp_dst); th->tcp_csum = recalc_csum16(th->tcp_csum, *field, port); *field = port; } else if (key->nw_proto == IPPROTO_UDP && packet->l7) { struct udp_header *uh = packet->l4; - field = type == ODPAT_SET_TP_SRC ? &uh->udp_src : &uh->udp_dst; + field = (type == ODP_ACTION_ATTR_SET_TP_SRC + ? &uh->udp_src : &uh->udp_dst); uh->udp_csum = recalc_csum16(uh->udp_csum, *field, port); *field = port; } else { @@ -1286,7 +1252,7 @@ dp_netdev_output_port(struct dp_netdev *dp, struct ofpbuf *packet, } static int -dp_netdev_output_control(struct dp_netdev *dp, const struct ofpbuf *packet, +dp_netdev_output_userspace(struct dp_netdev *dp, const struct ofpbuf *packet, int queue_no, const struct flow *flow, uint64_t arg) { struct dp_netdev_queue *q = &dp->queues[queue_no]; @@ -1313,39 +1279,11 @@ dp_netdev_output_control(struct dp_netdev *dp, const struct ofpbuf *packet, upcall->key_len = key_len; upcall->userdata = arg; - q->upcalls[++q->head & QUEUE_MASK] = upcall; + q->upcalls[q->head++ & QUEUE_MASK] = upcall; return 0; } -/* Returns true if 'packet' is an invalid Ethernet+IPv4 ARP packet: one with - * screwy or truncated header fields or one whose inner and outer Ethernet - * address differ. */ -static bool -dp_netdev_is_spoofed_arp(struct ofpbuf *packet, const struct flow *key) -{ - struct arp_eth_header *arp; - struct eth_header *eth; - ptrdiff_t l3_size; - - if (key->dl_type != htons(ETH_TYPE_ARP)) { - return false; - } - - l3_size = (char *) ofpbuf_end(packet) - (char *) packet->l3; - if (l3_size < sizeof(struct arp_eth_header)) { - return true; - } - - eth = packet->l2; - arp = packet->l3; - return (arp->ar_hrd != htons(ARP_HRD_ETHERNET) - || arp->ar_pro != htons(ARP_PRO_IP) - || arp->ar_hln != ETH_HEADER_LEN - || arp->ar_pln != 4 - || !eth_addr_equals(arp->ar_sha, eth->eth_src)); -} - static int dp_netdev_execute_actions(struct dp_netdev *dp, struct ofpbuf *packet, struct flow *key, @@ -1357,49 +1295,44 @@ dp_netdev_execute_actions(struct dp_netdev *dp, NL_ATTR_FOR_EACH_UNSAFE (a, left, actions, actions_len) { switch (nl_attr_type(a)) { - case ODPAT_OUTPUT: + case ODP_ACTION_ATTR_OUTPUT: dp_netdev_output_port(dp, packet, nl_attr_get_u32(a)); break; - case ODPAT_CONTROLLER: - dp_netdev_output_control(dp, packet, DPIF_UC_ACTION, + case ODP_ACTION_ATTR_USERSPACE: + dp_netdev_output_userspace(dp, packet, DPIF_UC_ACTION, key, nl_attr_get_u64(a)); break; - case ODPAT_SET_DL_TCI: - dp_netdev_set_dl_tci(packet, nl_attr_get_be16(a)); + case ODP_ACTION_ATTR_SET_DL_TCI: + eth_set_vlan_tci(packet, nl_attr_get_be16(a)); break; - case ODPAT_STRIP_VLAN: + case ODP_ACTION_ATTR_STRIP_VLAN: dp_netdev_strip_vlan(packet); break; - case ODPAT_SET_DL_SRC: + case ODP_ACTION_ATTR_SET_DL_SRC: dp_netdev_set_dl_src(packet, nl_attr_get_unspec(a, ETH_ADDR_LEN)); break; - case ODPAT_SET_DL_DST: + case ODP_ACTION_ATTR_SET_DL_DST: dp_netdev_set_dl_dst(packet, nl_attr_get_unspec(a, ETH_ADDR_LEN)); break; - case ODPAT_SET_NW_SRC: - case ODPAT_SET_NW_DST: + case ODP_ACTION_ATTR_SET_NW_SRC: + case ODP_ACTION_ATTR_SET_NW_DST: dp_netdev_set_nw_addr(packet, key, a); break; - case ODPAT_SET_NW_TOS: + case ODP_ACTION_ATTR_SET_NW_TOS: dp_netdev_set_nw_tos(packet, key, nl_attr_get_u8(a)); break; - case ODPAT_SET_TP_SRC: - case ODPAT_SET_TP_DST: + case ODP_ACTION_ATTR_SET_TP_SRC: + case ODP_ACTION_ATTR_SET_TP_DST: dp_netdev_set_tp_port(packet, key, a); break; - - case ODPAT_DROP_SPOOFED_ARP: - if (dp_netdev_is_spoofed_arp(packet, key)) { - return 0; - } } } return 0; @@ -1407,13 +1340,12 @@ dp_netdev_execute_actions(struct dp_netdev *dp, const struct dpif_class dpif_netdev_class = { "netdev", - dp_netdev_run, - dp_netdev_wait, NULL, /* enumerate */ dpif_netdev_open, dpif_netdev_close, - NULL, /* get_all_names */ dpif_netdev_destroy, + dpif_netdev_run, + dpif_netdev_wait, dpif_netdev_get_stats, dpif_netdev_get_drop_frags, dpif_netdev_set_drop_frags,