X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fclassifier.c;h=18958a8f73fccafafe18e78df4ee4476c664ecf3;hb=541bc79f73add327072470c9bc3febb4195cdb3c;hp=9903ab70d38a34dd7ef432e72deac0940f0570c3;hpb=209c0b17d90b8062e5a3cbd80a083ea02e18d880;p=openvswitch diff --git a/lib/classifier.c b/lib/classifier.c index 9903ab70..18958a8f 100644 --- a/lib/classifier.c +++ b/lib/classifier.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2009, 2010, 2011 Nicira Networks. + * Copyright (c) 2009, 2010, 2011, 2012 Nicira Networks. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -32,9 +32,6 @@ static struct cls_table *find_table(const struct classifier *, static struct cls_table *insert_table(struct classifier *, const struct flow_wildcards *); -static struct cls_table *classifier_first_table(const struct classifier *); -static struct cls_table *classifier_next_table(const struct classifier *, - const struct cls_table *); static void destroy_table(struct classifier *, struct cls_table *); static struct cls_rule *find_match(const struct cls_table *, @@ -57,12 +54,6 @@ static bool flow_equal_except(const struct flow *, const struct flow *, static struct cls_rule *next_rule_in_list__(struct cls_rule *); static struct cls_rule *next_rule_in_list(struct cls_rule *); -static struct cls_table * -cls_table_from_hmap_node(const struct hmap_node *node) -{ - return node ? CONTAINER_OF(node, struct cls_table, hmap_node) : NULL; -} - /* Converts the flow in 'flow' into a cls_rule in 'rule', with the given * 'wildcards' and 'priority'. */ void @@ -83,7 +74,7 @@ cls_rule_init_exact(const struct flow *flow, unsigned int priority, struct cls_rule *rule) { rule->flow = *flow; - rule->flow.priority = 0; + rule->flow.skb_priority = 0; flow_wildcards_init_exact(&rule->wc); rule->priority = priority; } @@ -227,12 +218,10 @@ cls_rule_set_any_vid(struct cls_rule *rule) void cls_rule_set_dl_vlan(struct cls_rule *rule, ovs_be16 dl_vlan) { + flow_set_vlan_vid(&rule->flow, dl_vlan); if (dl_vlan == htons(OFP_VLAN_NONE)) { - cls_rule_set_dl_tci(rule, htons(0)); + rule->wc.vlan_tci_mask = htons(UINT16_MAX); } else { - dl_vlan &= htons(VLAN_VID_MASK); - rule->flow.vlan_tci &= ~htons(VLAN_VID_MASK); - rule->flow.vlan_tci |= htons(VLAN_CFI) | dl_vlan; rule->wc.vlan_tci_mask |= htons(VLAN_VID_MASK | VLAN_CFI); } } @@ -256,24 +245,34 @@ cls_rule_set_any_pcp(struct cls_rule *rule) void cls_rule_set_dl_vlan_pcp(struct cls_rule *rule, uint8_t dl_vlan_pcp) { - dl_vlan_pcp &= 0x07; - rule->flow.vlan_tci &= ~htons(VLAN_PCP_MASK); - rule->flow.vlan_tci |= htons((dl_vlan_pcp << VLAN_PCP_SHIFT) | VLAN_CFI); + flow_set_vlan_pcp(&rule->flow, dl_vlan_pcp); rule->wc.vlan_tci_mask |= htons(VLAN_CFI | VLAN_PCP_MASK); } void cls_rule_set_tp_src(struct cls_rule *rule, ovs_be16 tp_src) { - rule->wc.wildcards &= ~FWW_TP_SRC; - rule->flow.tp_src = tp_src; + cls_rule_set_tp_src_masked(rule, tp_src, htons(UINT16_MAX)); +} + +void +cls_rule_set_tp_src_masked(struct cls_rule *rule, ovs_be16 port, ovs_be16 mask) +{ + rule->flow.tp_src = port & mask; + rule->wc.tp_src_mask = mask; } void cls_rule_set_tp_dst(struct cls_rule *rule, ovs_be16 tp_dst) { - rule->wc.wildcards &= ~FWW_TP_DST; - rule->flow.tp_dst = tp_dst; + cls_rule_set_tp_dst_masked(rule, tp_dst, htons(UINT16_MAX)); +} + +void +cls_rule_set_tp_dst_masked(struct cls_rule *rule, ovs_be16 port, ovs_be16 mask) +{ + rule->flow.tp_dst = port & mask; + rule->wc.tp_dst_mask = mask; } void @@ -315,7 +314,7 @@ cls_rule_set_nw_dst_masked(struct cls_rule *rule, ovs_be32 ip, ovs_be32 mask) void cls_rule_set_nw_dscp(struct cls_rule *rule, uint8_t nw_dscp) { - rule->wc.nw_tos_mask |= IP_DSCP_MASK; + rule->wc.wildcards &= ~FWW_NW_DSCP; rule->flow.nw_tos &= ~IP_DSCP_MASK; rule->flow.nw_tos |= nw_dscp & IP_DSCP_MASK; } @@ -323,7 +322,7 @@ cls_rule_set_nw_dscp(struct cls_rule *rule, uint8_t nw_dscp) void cls_rule_set_nw_ecn(struct cls_rule *rule, uint8_t nw_ecn) { - rule->wc.nw_tos_mask |= IP_ECN_MASK; + rule->wc.wildcards &= ~FWW_NW_ECN; rule->flow.nw_tos &= ~IP_ECN_MASK; rule->flow.nw_tos |= nw_ecn & IP_ECN_MASK; } @@ -353,15 +352,13 @@ cls_rule_set_nw_frag_masked(struct cls_rule *rule, void cls_rule_set_icmp_type(struct cls_rule *rule, uint8_t icmp_type) { - rule->wc.wildcards &= ~FWW_TP_SRC; - rule->flow.tp_src = htons(icmp_type); + cls_rule_set_tp_src(rule, htons(icmp_type)); } void cls_rule_set_icmp_code(struct cls_rule *rule, uint8_t icmp_code) { - rule->wc.wildcards &= ~FWW_TP_DST; - rule->flow.tp_dst = htons(icmp_code); + cls_rule_set_tp_dst(rule, htons(icmp_code)); } void @@ -465,6 +462,23 @@ format_ipv6_netmask(struct ds *s, const char *name, } } + +static void +format_be16_masked(struct ds *s, const char *name, + ovs_be16 value, ovs_be16 mask) +{ + if (mask != htons(0)) { + ds_put_format(s, "%s=", name); + if (mask == htons(UINT16_MAX)) { + ds_put_format(s, "%"PRIu16, ntohs(value)); + } else { + ds_put_format(s, "0x%"PRIx16"/0x%"PRIx16, + ntohs(value), ntohs(mask)); + } + ds_put_char(s, ','); + } +} + void cls_rule_format(const struct cls_rule *rule, struct ds *s) { @@ -477,7 +491,7 @@ cls_rule_format(const struct cls_rule *rule, struct ds *s) int i; - BUILD_ASSERT_DECL(FLOW_WC_SEQ == 6); + BUILD_ASSERT_DECL(FLOW_WC_SEQ == 8); if (rule->priority != OFP_DEFAULT_PRIORITY) { ds_put_format(s, "priority=%d,", rule->priority); @@ -622,10 +636,10 @@ cls_rule_format(const struct cls_rule *rule, struct ds *s) ETH_ADDR_ARGS(f->arp_tha)); } } - if (wc->nw_tos_mask & IP_DSCP_MASK) { + if (!(w & FWW_NW_DSCP)) { ds_put_format(s, "nw_tos=%"PRIu8",", f->nw_tos & IP_DSCP_MASK); } - if (wc->nw_tos_mask & IP_ECN_MASK) { + if (!(w & FWW_NW_ECN)) { ds_put_format(s, "nw_ecn=%"PRIu8",", f->nw_tos & IP_ECN_MASK); } if (!(w & FWW_NW_TTL)) { @@ -650,19 +664,11 @@ cls_rule_format(const struct cls_rule *rule, struct ds *s) break; } if (f->nw_proto == IPPROTO_ICMP) { - if (!(w & FWW_TP_SRC)) { - ds_put_format(s, "icmp_type=%"PRIu16",", ntohs(f->tp_src)); - } - if (!(w & FWW_TP_DST)) { - ds_put_format(s, "icmp_code=%"PRIu16",", ntohs(f->tp_dst)); - } + format_be16_masked(s, "icmp_type", f->tp_src, wc->tp_src_mask); + format_be16_masked(s, "icmp_code", f->tp_dst, wc->tp_dst_mask); } else if (f->nw_proto == IPPROTO_ICMPV6) { - if (!(w & FWW_TP_SRC)) { - ds_put_format(s, "icmp_type=%"PRIu16",", ntohs(f->tp_src)); - } - if (!(w & FWW_TP_DST)) { - ds_put_format(s, "icmp_code=%"PRIu16",", ntohs(f->tp_dst)); - } + format_be16_masked(s, "icmp_type", f->tp_src, wc->tp_src_mask); + format_be16_masked(s, "icmp_code", f->tp_dst, wc->tp_dst_mask); if (!(w & FWW_ND_TARGET)) { ds_put_cstr(s, "nd_target="); print_ipv6_addr(s, &f->nd_target); @@ -677,12 +683,8 @@ cls_rule_format(const struct cls_rule *rule, struct ds *s) ETH_ADDR_ARGS(f->arp_tha)); } } else { - if (!(w & FWW_TP_SRC)) { - ds_put_format(s, "tp_src=%"PRIu16",", ntohs(f->tp_src)); - } - if (!(w & FWW_TP_DST)) { - ds_put_format(s, "tp_dst=%"PRIu16",", ntohs(f->tp_dst)); - } + format_be16_masked(s, "tp_src", f->tp_src, wc->tp_src_mask); + format_be16_masked(s, "tp_dst", f->tp_dst, wc->tp_dst_mask); } if (s->length > start_len && ds_last(s) == ',') { @@ -966,8 +968,7 @@ cls_cursor_first(struct cls_cursor *cursor) { struct cls_table *table; - for (table = classifier_first_table(cursor->cls); table; - table = classifier_next_table(cursor->cls, table)) { + HMAP_FOR_EACH (table, hmap_node, &cursor->cls->tables) { struct cls_rule *rule = search_table(table, cursor->target); if (rule) { cursor->table = table; @@ -1001,8 +1002,8 @@ cls_cursor_next(struct cls_cursor *cursor, struct cls_rule *rule) } } - for (table = classifier_next_table(cursor->cls, cursor->table); table; - table = classifier_next_table(cursor->cls, table)) { + table = cursor->table; + HMAP_FOR_EACH_CONTINUE (table, hmap_node, &cursor->cls->tables) { rule = search_table(table, cursor->target); if (rule) { cursor->table = table; @@ -1040,20 +1041,6 @@ insert_table(struct classifier *cls, const struct flow_wildcards *wc) return table; } -static struct cls_table * -classifier_first_table(const struct classifier *cls) -{ - return cls_table_from_hmap_node(hmap_first(&cls->tables)); -} - -static struct cls_table * -classifier_next_table(const struct classifier *cls, - const struct cls_table *table) -{ - return cls_table_from_hmap_node(hmap_next(&cls->tables, - &table->hmap_node)); -} - static void destroy_table(struct classifier *cls, struct cls_table *table) { @@ -1177,7 +1164,7 @@ flow_equal_except(const struct flow *a, const struct flow *b, const flow_wildcards_t wc = wildcards->wildcards; int i; - BUILD_ASSERT_DECL(FLOW_WC_SEQ == 6); + BUILD_ASSERT_DECL(FLOW_WC_SEQ == 8); for (i = 0; i < FLOW_N_REGS; i++) { if ((a->regs[i] ^ b->regs[i]) & wildcards->reg_masks[i]) { @@ -1191,8 +1178,8 @@ flow_equal_except(const struct flow *a, const struct flow *b, && (wc & FWW_IN_PORT || a->in_port == b->in_port) && !((a->vlan_tci ^ b->vlan_tci) & wildcards->vlan_tci_mask) && (wc & FWW_DL_TYPE || a->dl_type == b->dl_type) - && (wc & FWW_TP_SRC || a->tp_src == b->tp_src) - && (wc & FWW_TP_DST || a->tp_dst == b->tp_dst) + && !((a->tp_src ^ b->tp_src) & wildcards->tp_src_mask) + && !((a->tp_dst ^ b->tp_dst) & wildcards->tp_dst_mask) && (wc & FWW_DL_SRC || eth_addr_equals(a->dl_src, b->dl_src)) && (wc & FWW_DL_DST || (!((a->dl_dst[0] ^ b->dl_dst[0]) & 0xfe) @@ -1205,7 +1192,8 @@ flow_equal_except(const struct flow *a, const struct flow *b, || !((a->dl_dst[0] ^ b->dl_dst[0]) & 0x01)) && (wc & FWW_NW_PROTO || a->nw_proto == b->nw_proto) && (wc & FWW_NW_TTL || a->nw_ttl == b->nw_ttl) - && !((a->nw_tos ^ b->nw_tos) & wildcards->nw_tos_mask) + && (wc & FWW_NW_DSCP || !((a->nw_tos ^ b->nw_tos) & IP_DSCP_MASK)) + && (wc & FWW_NW_ECN || !((a->nw_tos ^ b->nw_tos) & IP_ECN_MASK)) && !((a->nw_frag ^ b->nw_frag) & wildcards->nw_frag_mask) && (wc & FWW_ARP_SHA || eth_addr_equals(a->arp_sha, b->arp_sha)) && (wc & FWW_ARP_THA || eth_addr_equals(a->arp_tha, b->arp_tha))