X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fdpif-netdev.c;h=6e7a5cca0198f50a0c217e54569d56afac28ac6c;hb=d1673b006d53fdea72c0744e835362ed1917f879;hp=48bc92d91bad007c4c6d7d05d10bd2141dd9d7c2;hpb=e368cad8ecf6dbf272b2a3775b2e3e5e2dc6a5cf;p=sliver-openvswitch.git diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c index 48bc92d91..6e7a5cca0 100644 --- a/lib/dpif-netdev.c +++ b/lib/dpif-netdev.c @@ -17,7 +17,6 @@ #include #include "dpif.h" -#include #include #include #include @@ -138,15 +137,15 @@ static struct shash dp_netdevs = SHASH_INITIALIZER(&dp_netdevs); /* Maximum port MTU seen so far. */ static int max_mtu = ETH_PAYLOAD_MAX; -static int get_port_by_number(struct dp_netdev *, uint16_t port_no, +static int get_port_by_number(struct dp_netdev *, uint32_t port_no, struct dp_netdev_port **portp); static int get_port_by_name(struct dp_netdev *, const char *devname, struct dp_netdev_port **portp); static void dp_netdev_free(struct dp_netdev *); static void dp_netdev_flow_flush(struct dp_netdev *); static int do_add_port(struct dp_netdev *, const char *devname, - const char *type, uint16_t port_no); -static int do_del_port(struct dp_netdev *, uint16_t port_no); + const char *type, uint32_t port_no); +static int do_del_port(struct dp_netdev *, uint32_t port_no); static int dpif_netdev_open(const struct dpif_class *, const char *name, bool create, struct dpif **); static int dp_netdev_output_userspace(struct dp_netdev *, const struct ofpbuf *, @@ -160,7 +159,7 @@ static void dp_netdev_execute_actions(struct dp_netdev *, static struct dpif_netdev * dpif_netdev_cast(const struct dpif *dpif) { - assert(dpif->dpif_class->open == dpif_netdev_open); + ovs_assert(dpif->dpif_class->open == dpif_netdev_open); return CONTAINER_OF(dpif, struct dpif_netdev, dpif); } @@ -181,6 +180,22 @@ dpif_netdev_enumerate(struct sset *all_dps) return 0; } +static const char * +dpif_netdev_port_open_type(const struct dpif_class *class, const char *type) +{ + return strcmp(type, "internal") ? type + : class != &dpif_netdev_class ? "dummy" + : "tap"; +} + +static const char * +dpif_planetlab_port_open_type(const struct dpif_class *class, const char *type) +{ + return strcmp(type, "internal") ? type + : class != &dpif_planetlab_class ? "dummy" + : "pltap"; +} + static struct dpif * create_dpif_netdev(struct dp_netdev *dp) { @@ -197,6 +212,46 @@ create_dpif_netdev(struct dp_netdev *dp) return &dpif->dpif; } +static int +choose_port(struct dp_netdev *dp, const char *name) +{ + int port_no; + + if (dp->class != &dpif_netdev_class && + dp->class != &dpif_planetlab_class) { + const char *p; + int start_no = 0; + + /* If the port name begins with "br", start the number search at + * 100 to make writing tests easier. */ + if (!strncmp(name, "br", 2)) { + start_no = 100; + } + + /* If the port name contains a number, try to assign that port number. + * This can make writing unit tests easier because port numbers are + * predictable. */ + for (p = name; *p != '\0'; p++) { + if (isdigit((unsigned char) *p)) { + port_no = start_no + strtol(p, NULL, 10); + if (port_no > 0 && port_no < MAX_PORTS + && !dp->ports[port_no]) { + return port_no; + } + break; + } + } + } + + for (port_no = 1; port_no < MAX_PORTS; port_no++) { + if (!dp->ports[port_no]) { + return port_no; + } + } + + return -1; +} + static int create_dp_netdev(const char *name, const struct dpif_class *class, struct dp_netdev **dpp) @@ -214,6 +269,7 @@ create_dp_netdev(const char *name, const struct dpif_class *class, } hmap_init(&dp->flow_table); list_init(&dp->port_list); + error = do_add_port(dp, name, "internal", OVSP_LOCAL); if (error) { dp_netdev_free(dp); @@ -241,7 +297,7 @@ dpif_netdev_open(const struct dpif_class *class, const char *name, if (error) { return error; } - assert(dp != NULL); + ovs_assert(dp != NULL); } } else { if (dp->class != class) { @@ -289,7 +345,7 @@ static void dpif_netdev_close(struct dpif *dpif) { struct dp_netdev *dp = get_dp_netdev(dpif); - assert(dp->open_cnt > 0); + ovs_assert(dp->open_cnt > 0); if (--dp->open_cnt == 0 && dp->destroyed) { shash_find_and_delete(&dp_netdevs, dp->name); dp_netdev_free(dp); @@ -316,18 +372,9 @@ dpif_netdev_get_stats(const struct dpif *dpif, struct dpif_dp_stats *stats) return 0; } -static const char* internal_port_type(const struct dp_netdev* dp) -{ - if (dp->class == &dpif_netdev_class) - return "tap"; - if (dp->class == &dpif_planetlab_class) - return "tap_pl"; - return "dummy"; -} - static int do_add_port(struct dp_netdev *dp, const char *devname, const char *type, - uint16_t port_no) + uint32_t port_no) { struct dp_netdev_port *port; struct netdev *netdev; @@ -338,7 +385,7 @@ do_add_port(struct dp_netdev *dp, const char *devname, const char *type, /* XXX reject devices already in some dp_netdev. */ /* Open and validate network device. */ - open_type = (strcmp(type, "internal") ? type : internal_port_type(dp)); + open_type = dpif_netdev_port_open_type(dp->class, type); error = netdev_open(devname, open_type, &netdev); if (error) { return error; @@ -377,49 +424,14 @@ do_add_port(struct dp_netdev *dp, const char *devname, const char *type, return 0; } -static int -choose_port(struct dpif *dpif, struct netdev *netdev) -{ - struct dp_netdev *dp = get_dp_netdev(dpif); - int port_no; - - if (dpif->dpif_class != &dpif_netdev_class && - dpif->dpif_class != &dpif_planetlab_class) - { - /* If the port name contains a number, try to assign that port number. - * This can make writing unit tests easier because port numbers are - * predictable. */ - const char *p; - - for (p = netdev_get_name(netdev); *p != '\0'; p++) { - if (isdigit((unsigned char) *p)) { - port_no = strtol(p, NULL, 10); - if (port_no > 0 && port_no < MAX_PORTS - && !dp->ports[port_no]) { - return port_no; - } - break; - } - } - } - - for (port_no = 0; port_no < MAX_PORTS; port_no++) { - if (!dp->ports[port_no]) { - return port_no; - } - } - - return -1; -} - static int dpif_netdev_port_add(struct dpif *dpif, struct netdev *netdev, - uint16_t *port_nop) + uint32_t *port_nop) { struct dp_netdev *dp = get_dp_netdev(dpif); int port_no; - if (*port_nop != UINT16_MAX) { + if (*port_nop != UINT32_MAX) { if (*port_nop >= MAX_PORTS) { return EFBIG; } else if (dp->ports[*port_nop]) { @@ -427,7 +439,7 @@ dpif_netdev_port_add(struct dpif *dpif, struct netdev *netdev, } port_no = *port_nop; } else { - port_no = choose_port(dpif, netdev); + port_no = choose_port(dp, netdev_get_name(netdev)); } if (port_no >= 0) { *port_nop = port_no; @@ -438,21 +450,21 @@ dpif_netdev_port_add(struct dpif *dpif, struct netdev *netdev, } static int -dpif_netdev_port_del(struct dpif *dpif, uint16_t port_no) +dpif_netdev_port_del(struct dpif *dpif, uint32_t port_no) { struct dp_netdev *dp = get_dp_netdev(dpif); return port_no == OVSP_LOCAL ? EINVAL : do_del_port(dp, port_no); } static bool -is_valid_port_number(uint16_t port_no) +is_valid_port_number(uint32_t port_no) { return port_no < MAX_PORTS; } static int get_port_by_number(struct dp_netdev *dp, - uint16_t port_no, struct dp_netdev_port **portp) + uint32_t port_no, struct dp_netdev_port **portp) { if (!is_valid_port_number(port_no)) { *portp = NULL; @@ -479,7 +491,7 @@ get_port_by_name(struct dp_netdev *dp, } static int -do_del_port(struct dp_netdev *dp, uint16_t port_no) +do_del_port(struct dp_netdev *dp, uint32_t port_no) { struct dp_netdev_port *port; char *name; @@ -514,7 +526,7 @@ answer_port_query(const struct dp_netdev_port *port, } static int -dpif_netdev_port_query_by_number(const struct dpif *dpif, uint16_t port_no, +dpif_netdev_port_query_by_number(const struct dpif *dpif, uint32_t port_no, struct dpif_port *dpif_port) { struct dp_netdev *dp = get_dp_netdev(dpif); @@ -522,7 +534,7 @@ dpif_netdev_port_query_by_number(const struct dpif *dpif, uint16_t port_no, int error; error = get_port_by_number(dp, port_no, &port); - if (!error) { + if (!error && dpif_port) { answer_port_query(port, dpif_port); } return error; @@ -537,7 +549,7 @@ dpif_netdev_port_query_by_name(const struct dpif *dpif, const char *devname, int error; error = get_port_by_name(dp, devname, &port); - if (!error) { + if (!error && dpif_port) { answer_port_query(port, dpif_port); } return error; @@ -666,7 +678,7 @@ static int dpif_netdev_flow_from_nlattrs(const struct nlattr *key, uint32_t key_len, struct flow *flow) { - if (odp_flow_key_to_flow(key, key_len, flow)) { + if (odp_flow_key_to_flow(key, key_len, flow) != ODP_FIT_PERFECT) { /* This should not happen: it indicates that odp_flow_key_from_flow() * and odp_flow_key_to_flow() disagree on the acceptable form of a * flow. Log the problem as an error, with enough details to enable @@ -875,7 +887,7 @@ dpif_netdev_flow_dump_next(const struct dpif *dpif, void *state_, struct ofpbuf buf; ofpbuf_use_stack(&buf, &state->keybuf, sizeof state->keybuf); - odp_flow_key_from_flow(&buf, &flow->key); + odp_flow_key_from_flow(&buf, &flow->key, flow->key.in_port); *key = buf.data; *key_len = buf.size; @@ -925,7 +937,7 @@ dpif_netdev_execute(struct dpif *dpif, const struct dpif_execute *execute) ofpbuf_reserve(©, DP_NETDEV_HEADROOM); ofpbuf_put(©, execute->packet->data, execute->packet->size); - flow_extract(©, 0, 0, -1, &key); + flow_extract(©, 0, 0, NULL, -1, &key); error = dpif_netdev_flow_from_nlattrs(execute->key, execute->key_len, &key); if (!error) { @@ -1005,13 +1017,12 @@ dpif_netdev_recv_purge(struct dpif *dpif) } static void -dp_netdev_flow_used(struct dp_netdev_flow *flow, struct flow *key, - const struct ofpbuf *packet) +dp_netdev_flow_used(struct dp_netdev_flow *flow, const struct ofpbuf *packet) { flow->used = time_msec(); flow->packet_count++; flow->byte_count += packet->size; - flow->tcp_flags |= packet_get_tcp_flags(packet, key); + flow->tcp_flags |= packet_get_tcp_flags(packet, &flow->key); } static void @@ -1024,10 +1035,10 @@ dp_netdev_port_input(struct dp_netdev *dp, struct dp_netdev_port *port, if (packet->size < ETH_HEADER_LEN) { return; } - flow_extract(packet, 0, 0, odp_port_to_ofp_port(port->port_no), &key); + flow_extract(packet, 0, 0, NULL, port->port_no, &key); flow = dp_netdev_lookup_flow(dp, &key); if (flow) { - dp_netdev_flow_used(flow, &key, packet); + dp_netdev_flow_used(flow, packet); dp_netdev_execute_actions(dp, packet, &key, flow->actions, flow->actions_len); dp->n_hit++; @@ -1087,7 +1098,7 @@ dp_netdev_set_dl(struct ofpbuf *packet, const struct ovs_key_ethernet *eth_key) static void dp_netdev_output_port(struct dp_netdev *dp, struct ofpbuf *packet, - uint16_t out_port) + uint32_t out_port) { struct dp_netdev_port *p = dp->ports[out_port]; if (p) { @@ -1114,7 +1125,7 @@ dp_netdev_output_userspace(struct dp_netdev *dp, const struct ofpbuf *packet, buf = &u->buf; ofpbuf_init(buf, ODPUTIL_FLOW_KEY_BYTES + 2 + packet->size); - odp_flow_key_from_flow(buf, flow); + odp_flow_key_from_flow(buf, flow, flow->in_port); key_len = buf->size; ofpbuf_pull(buf, key_len); ofpbuf_reserve(buf, 2); @@ -1182,13 +1193,15 @@ execute_set_action(struct ofpbuf *packet, const struct nlattr *a) { enum ovs_key_attr type = nl_attr_type(a); const struct ovs_key_ipv4 *ipv4_key; + const struct ovs_key_ipv6 *ipv6_key; const struct ovs_key_tcp *tcp_key; const struct ovs_key_udp *udp_key; switch (type) { case OVS_KEY_ATTR_TUN_ID: case OVS_KEY_ATTR_PRIORITY: - case OVS_KEY_ATTR_IPV6: + case OVS_KEY_ATTR_SKB_MARK: + case OVS_KEY_ATTR_TUNNEL: /* not implemented */ break; @@ -1203,6 +1216,13 @@ execute_set_action(struct ofpbuf *packet, const struct nlattr *a) ipv4_key->ipv4_tos, ipv4_key->ipv4_ttl); break; + case OVS_KEY_ATTR_IPV6: + ipv6_key = nl_attr_get_unspec(a, sizeof(struct ovs_key_ipv6)); + packet_set_ipv6(packet, ipv6_key->ipv6_proto, ipv6_key->ipv6_src, + ipv6_key->ipv6_dst, ipv6_key->ipv6_tclass, + ipv6_key->ipv6_label, ipv6_key->ipv6_hlimit); + break; + case OVS_KEY_ATTR_TCP: tcp_key = nl_attr_get_unspec(a, sizeof(struct ovs_key_tcp)); packet_set_tcp_port(packet, tcp_key->tcp_src, tcp_key->tcp_dst); @@ -1238,7 +1258,6 @@ dp_netdev_execute_actions(struct dp_netdev *dp, unsigned int left; NL_ATTR_FOR_EACH_UNSAFE (a, left, actions, actions_len) { - const struct ovs_action_push_vlan *vlan; int type = nl_attr_type(a); switch ((enum ovs_action_attr) type) { @@ -1250,10 +1269,11 @@ dp_netdev_execute_actions(struct dp_netdev *dp, dp_netdev_action_userspace(dp, packet, key, a); break; - case OVS_ACTION_ATTR_PUSH_VLAN: - vlan = nl_attr_get(a); + case OVS_ACTION_ATTR_PUSH_VLAN: { + const struct ovs_action_push_vlan *vlan = nl_attr_get(a); eth_push_vlan(packet, vlan->vlan_tci); break; + } case OVS_ACTION_ATTR_POP_VLAN: eth_pop_vlan(packet); @@ -1274,8 +1294,9 @@ dp_netdev_execute_actions(struct dp_netdev *dp, } } -#define DPIF_NETDEV_CLASS_FUNCTIONS \ +#define DPIF_NETDEV_CLASS_FUNCTIONS(PORT_OPEN_TYPE) \ dpif_netdev_enumerate, \ + PORT_OPEN_TYPE, \ dpif_netdev_open, \ dpif_netdev_close, \ dpif_netdev_destroy, \ @@ -1310,12 +1331,12 @@ dp_netdev_execute_actions(struct dp_netdev *dp, const struct dpif_class dpif_netdev_class = { "netdev", - DPIF_NETDEV_CLASS_FUNCTIONS + DPIF_NETDEV_CLASS_FUNCTIONS(dpif_netdev_port_open_type) }; const struct dpif_class dpif_planetlab_class = { "planetlab", - DPIF_NETDEV_CLASS_FUNCTIONS + DPIF_NETDEV_CLASS_FUNCTIONS(dpif_planetlab_port_open_type) }; static void