X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fdpif-netdev.c;h=2f4463e6d4783851a1d1d01615b8b53da0c5d462;hb=3bcf3e33e9cfb7fd837086bfa8e627110d84dce8;hp=042837c134281bc9cf9c8e8be758272b2fd12b46;hpb=7dab847a19503f537c57c2215748f0b50b94f51e;p=openvswitch diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c index 042837c1..2f4463e6 100644 --- a/lib/dpif-netdev.c +++ b/lib/dpif-netdev.c @@ -22,8 +22,8 @@ #include #include #include -#include #include +#include #include #include #include @@ -245,7 +245,7 @@ create_dp_netdev(const char *name, int dp_idx, struct dpif **dpifp) } static int -dpif_netdev_open(const char *name, const char *type UNUSED, bool create, +dpif_netdev_open(const char *name, const char *type OVS_UNUSED, bool create, struct dpif **dpifp) { if (create) { @@ -582,7 +582,7 @@ dpif_netdev_port_list(const struct dpif *dpif, struct odp_port *ports, int n) } static int -dpif_netdev_port_poll(const struct dpif *dpif_, char **devnamep UNUSED) +dpif_netdev_port_poll(const struct dpif *dpif_, char **devnamep OVS_UNUSED) { struct dpif_netdev *dpif = dpif_netdev_cast(dpif_); if (dpif->dp_serial != dpif->dp->serial) { @@ -663,7 +663,7 @@ dp_netdev_lookup_flow(const struct dp_netdev *dp, const flow_t *key) { struct dp_netdev_flow *flow; - assert(key->reserved == 0); + assert(!key->reserved[0] && !key->reserved[1] && !key->reserved[2]); HMAP_FOR_EACH_WITH_HASH (flow, struct dp_netdev_flow, node, flow_hash(key, 0), &dp->flow_table) { if (flow_equal(&flow->key, key)) { @@ -720,41 +720,48 @@ static int dpif_netdev_validate_actions(const union odp_action *actions, int n_actions, bool *mutates) { - unsigned int i; + unsigned int i; *mutates = false; - for (i = 0; i < n_actions; i++) { - const union odp_action *a = &actions[i]; - switch (a->type) { - case ODPAT_OUTPUT: - if (a->output.port >= MAX_PORTS) { - return EINVAL; + for (i = 0; i < n_actions; i++) { + const union odp_action *a = &actions[i]; + switch (a->type) { + case ODPAT_OUTPUT: + if (a->output.port >= MAX_PORTS) { + return EINVAL; } - break; + break; - case ODPAT_OUTPUT_GROUP: + case ODPAT_OUTPUT_GROUP: *mutates = true; - if (a->output_group.group >= N_GROUPS) { - return EINVAL; + if (a->output_group.group >= N_GROUPS) { + return EINVAL; } - break; + break; case ODPAT_CONTROLLER: break; - case ODPAT_SET_VLAN_VID: + case ODPAT_SET_VLAN_VID: *mutates = true; - if (a->vlan_vid.vlan_vid & htons(~VLAN_VID_MASK)) { - return EINVAL; + if (a->vlan_vid.vlan_vid & htons(~VLAN_VID_MASK)) { + return EINVAL; } - break; + break; - case ODPAT_SET_VLAN_PCP: + case ODPAT_SET_VLAN_PCP: *mutates = true; - if (a->vlan_pcp.vlan_pcp & ~VLAN_PCP_MASK) { - return EINVAL; + if (a->vlan_pcp.vlan_pcp & ~(VLAN_PCP_MASK >> VLAN_PCP_SHIFT)) { + return EINVAL; } - break; + break; + + case ODPAT_SET_NW_TOS: + *mutates = true; + if (a->nw_tos.nw_tos & IP_ECN_MASK) { + return EINVAL; + } + break; case ODPAT_STRIP_VLAN: case ODPAT_SET_DL_SRC: @@ -766,11 +773,11 @@ dpif_netdev_validate_actions(const union odp_action *actions, int n_actions, *mutates = true; break; - default: + default: return EOPNOTSUPP; - } - } - return 0; + } + } + return 0; } static int @@ -805,7 +812,7 @@ add_flow(struct dpif *dpif, struct odp_flow *odp_flow) flow = xzalloc(sizeof *flow); flow->key = odp_flow->key; - flow->key.reserved = 0; + memset(flow->key.reserved, 0, sizeof flow->key.reserved); error = set_flow_actions(flow, odp_flow); if (error) { @@ -925,7 +932,7 @@ dpif_netdev_execute(struct dpif *dpif, uint16_t in_port, * if we don't. */ copy = *packet; } - flow_extract(©, in_port, &flow); + flow_extract(©, 0, in_port, &flow); error = dp_netdev_execute_actions(dp, ©, &flow, actions, n_actions); if (mutates) { ofpbuf_uninit(©); @@ -1019,7 +1026,7 @@ dp_netdev_port_input(struct dp_netdev *dp, struct dp_netdev_port *port, struct dp_netdev_flow *flow; flow_t key; - if (flow_extract(packet, port->port_no, &key) && dp->drop_frags) { + if (flow_extract(packet, 0, port->port_no, &key) && dp->drop_frags) { dp->n_frags++; return; } @@ -1079,6 +1086,15 @@ dp_netdev_wait(void) } } + +/* Modify the TCI field of 'packet'. If a VLAN tag is not present, one + * is added with the TCI field set to 'tci'. If a VLAN tag is present, + * then 'mask' bits are cleared before 'tci' is logically OR'd into the + * TCI field. + * + * Note that the function does not ensure that 'tci' does not affect + * bits outside of 'mask'. + */ static void dp_netdev_modify_vlan_tci(struct ofpbuf *packet, flow_t *key, uint16_t tci, uint16_t mask) @@ -1086,7 +1102,7 @@ dp_netdev_modify_vlan_tci(struct ofpbuf *packet, flow_t *key, struct vlan_eth_header *veh; if (key->dl_vlan != htons(ODP_VLAN_NONE)) { - /* Modify 'mask' bits, but maintain other TCI bits. */ + /* Clear 'mask' bits, but maintain other TCI bits. */ veh = packet->l2; veh->veth_tci &= ~htons(mask); veh->veth_tci |= htons(tci); @@ -1129,19 +1145,21 @@ dp_netdev_strip_vlan(struct ofpbuf *packet, flow_t *key) } static void -dp_netdev_set_dl_src(struct ofpbuf *packet, +dp_netdev_set_dl_src(struct ofpbuf *packet, flow_t *key, const uint8_t dl_addr[ETH_ADDR_LEN]) { struct eth_header *eh = packet->l2; memcpy(eh->eth_src, dl_addr, sizeof eh->eth_src); + memcpy(key->dl_src, dl_addr, sizeof key->dl_src); } static void -dp_netdev_set_dl_dst(struct ofpbuf *packet, +dp_netdev_set_dl_dst(struct ofpbuf *packet, flow_t *key, const uint8_t dl_addr[ETH_ADDR_LEN]) { struct eth_header *eh = packet->l2; memcpy(eh->eth_dst, dl_addr, sizeof eh->eth_dst); + memcpy(key->dl_dst, dl_addr, sizeof key->dl_dst); } static void @@ -1167,6 +1185,30 @@ dp_netdev_set_nw_addr(struct ofpbuf *packet, flow_t *key, } nh->ip_csum = recalc_csum32(nh->ip_csum, *field, a->nw_addr); *field = a->nw_addr; + + if (a->type == ODPAT_SET_NW_SRC) { + key->nw_src = a->type; + } else { + key->nw_dst = a->type; + } + } +} + +static void +dp_netdev_set_nw_tos(struct ofpbuf *packet, flow_t *key, + const struct odp_action_nw_tos *a) +{ + if (key->dl_type == htons(ETH_TYPE_IP)) { + struct ip_header *nh = packet->l3; + uint8_t *field = &nh->ip_tos; + + /* Set the DSCP bits and preserve the ECN bits. */ + uint8_t new = a->nw_tos | (nh->ip_tos & IP_ECN_MASK); + + nh->ip_csum = recalc_csum16(nh->ip_csum, htons((uint16_t)*field), + htons((uint16_t)a->nw_tos)); + *field = new; + key->nw_tos = a->nw_tos; } } @@ -1186,6 +1228,14 @@ dp_netdev_set_tp_port(struct ofpbuf *packet, flow_t *key, field = a->type == ODPAT_SET_TP_SRC ? &uh->udp_src : &uh->udp_dst; uh->udp_csum = recalc_csum16(uh->udp_csum, *field, a->tp_port); *field = a->tp_port; + } else { + return; + } + + if (a->type == ODPAT_SET_TP_SRC) { + key->tp_src = a->tp_port; + } else { + key->tp_dst = a->tp_port; } } } @@ -1230,7 +1280,8 @@ dp_netdev_output_control(struct dp_netdev *dp, const struct ofpbuf *packet, } msg_size = sizeof *header + packet->size; - msg = ofpbuf_new(msg_size); + msg = ofpbuf_new(msg_size + DPIF_RECV_MSG_PADDING); + ofpbuf_reserve(msg, DPIF_RECV_MSG_PADDING); header = ofpbuf_put_uninit(msg, sizeof *header); header->type = queue_no; header->length = msg_size; @@ -1272,8 +1323,9 @@ dp_netdev_execute_actions(struct dp_netdev *dp, break; case ODPAT_SET_VLAN_PCP: - dp_netdev_modify_vlan_tci(packet, key, a->vlan_pcp.vlan_pcp << 13, - VLAN_PCP_MASK); + dp_netdev_modify_vlan_tci( + packet, key, a->vlan_pcp.vlan_pcp << VLAN_PCP_SHIFT, + VLAN_PCP_MASK); break; case ODPAT_STRIP_VLAN: @@ -1281,11 +1333,11 @@ dp_netdev_execute_actions(struct dp_netdev *dp, break; case ODPAT_SET_DL_SRC: - dp_netdev_set_dl_src(packet, a->dl_addr.dl_addr); + dp_netdev_set_dl_src(packet, key, a->dl_addr.dl_addr); break; case ODPAT_SET_DL_DST: - dp_netdev_set_dl_dst(packet, a->dl_addr.dl_addr); + dp_netdev_set_dl_dst(packet, key, a->dl_addr.dl_addr); break; case ODPAT_SET_NW_SRC: @@ -1293,6 +1345,10 @@ dp_netdev_execute_actions(struct dp_netdev *dp, dp_netdev_set_nw_addr(packet, key, &a->nw_addr); break; + case ODPAT_SET_NW_TOS: + dp_netdev_set_nw_tos(packet, key, &a->nw_tos); + break; + case ODPAT_SET_TP_SRC: case ODPAT_SET_TP_DST: dp_netdev_set_tp_port(packet, key, &a->tp_port);