classifier: Break cls_rule 'flow' and 'wc' members into new "struct match".
[openvswitch] / tests / test-classifier.c
index 97e8f3fec8ecb5898ecaf22626b33f543d27cf10..f279bda1e7d8c75eb81eef02b52544cff8145acc 100644 (file)
 
 /* Fields in a rule. */
 #define CLS_FIELDS                                                  \
-    /*                                    struct flow  all-caps */  \
-    /*        FWW_* bit(s)                member name  name     */  \
-    /*        --------------------------  -----------  -------- */  \
-    CLS_FIELD(0,                          tun_id,      TUN_ID)      \
-    CLS_FIELD(0,                          metadata,    METADATA)    \
-    CLS_FIELD(0,                          nw_src,      NW_SRC)      \
-    CLS_FIELD(0,                          nw_dst,      NW_DST)      \
-    CLS_FIELD(FWW_IN_PORT,                in_port,     IN_PORT)     \
-    CLS_FIELD(0,                          vlan_tci,    VLAN_TCI)    \
-    CLS_FIELD(0,                          dl_type,     DL_TYPE)     \
-    CLS_FIELD(0,                          tp_src,      TP_SRC)      \
-    CLS_FIELD(0,                          tp_dst,      TP_DST)      \
-    CLS_FIELD(0,                          dl_src,      DL_SRC)      \
-    CLS_FIELD(0,                          dl_dst,      DL_DST)      \
-    CLS_FIELD(0,                          nw_proto,    NW_PROTO)    \
-    CLS_FIELD(0,                          nw_tos,      NW_DSCP)
+    /*        struct flow  all-caps */  \
+    /*        member name  name     */  \
+    /*        -----------  -------- */  \
+    CLS_FIELD(tun_id,      TUN_ID)      \
+    CLS_FIELD(metadata,    METADATA)    \
+    CLS_FIELD(nw_src,      NW_SRC)      \
+    CLS_FIELD(nw_dst,      NW_DST)      \
+    CLS_FIELD(in_port,     IN_PORT)     \
+    CLS_FIELD(vlan_tci,    VLAN_TCI)    \
+    CLS_FIELD(dl_type,     DL_TYPE)     \
+    CLS_FIELD(tp_src,      TP_SRC)      \
+    CLS_FIELD(tp_dst,      TP_DST)      \
+    CLS_FIELD(dl_src,      DL_SRC)      \
+    CLS_FIELD(dl_dst,      DL_DST)      \
+    CLS_FIELD(nw_proto,    NW_PROTO)    \
+    CLS_FIELD(nw_tos,      NW_DSCP)
 
 /* Field indexes.
  *
  * (These are also indexed into struct classifier's 'tables' array.) */
 enum {
-#define CLS_FIELD(WILDCARDS, MEMBER, NAME) CLS_F_IDX_##NAME,
+#define CLS_FIELD(MEMBER, NAME) CLS_F_IDX_##NAME,
     CLS_FIELDS
 #undef CLS_FIELD
     CLS_N_FIELDS
@@ -72,15 +72,13 @@ enum {
 struct cls_field {
     int ofs;                    /* Offset in struct flow. */
     int len;                    /* Length in bytes. */
-    flow_wildcards_t wildcards; /* FWW_* bit or bits for this field. */
     const char *name;           /* Name (for debugging). */
 };
 
 static const struct cls_field cls_fields[CLS_N_FIELDS] = {
-#define CLS_FIELD(WILDCARDS, MEMBER, NAME)      \
+#define CLS_FIELD(MEMBER, NAME)                 \
     { offsetof(struct flow, MEMBER),            \
       sizeof ((struct flow *)0)->MEMBER,        \
-      WILDCARDS,                                \
       #NAME },
     CLS_FIELDS
 #undef CLS_FIELD
@@ -136,8 +134,6 @@ tcls_insert(struct tcls *tcls, const struct test_rule *rule)
 {
     size_t i;
 
-    assert(!flow_wildcards_is_exact(&rule->cls_rule.wc)
-           || rule->cls_rule.priority == UINT_MAX);
     for (i = 0; i < tcls->n_rules; i++) {
         const struct cls_rule *pos = &tcls->rules[i]->cls_rule;
         if (cls_rule_equal(pos, &rule->cls_rule)) {
@@ -187,45 +183,47 @@ match(const struct cls_rule *wild, const struct flow *fixed)
     int f_idx;
 
     for (f_idx = 0; f_idx < CLS_N_FIELDS; f_idx++) {
-        const struct cls_field *f = &cls_fields[f_idx];
         bool eq;
 
-        if (f->wildcards) {
-            void *wild_field = (char *) &wild->flow + f->ofs;
-            void *fixed_field = (char *) fixed + f->ofs;
-            eq = ((wild->wc.wildcards & f->wildcards) == f->wildcards
-                  || !memcmp(wild_field, fixed_field, f->len));
-        } else if (f_idx == CLS_F_IDX_NW_SRC) {
-            eq = !((fixed->nw_src ^ wild->flow.nw_src) & wild->wc.nw_src_mask);
+        if (f_idx == CLS_F_IDX_NW_SRC) {
+            eq = !((fixed->nw_src ^ wild->match.flow.nw_src)
+                   & wild->match.wc.masks.nw_src);
         } else if (f_idx == CLS_F_IDX_NW_DST) {
-            eq = !((fixed->nw_dst ^ wild->flow.nw_dst) & wild->wc.nw_dst_mask);
+            eq = !((fixed->nw_dst ^ wild->match.flow.nw_dst)
+                   & wild->match.wc.masks.nw_dst);
         } else if (f_idx == CLS_F_IDX_TP_SRC) {
-            eq = !((fixed->tp_src ^ wild->flow.tp_src) & wild->wc.tp_src_mask);
+            eq = !((fixed->tp_src ^ wild->match.flow.tp_src)
+                   & wild->match.wc.masks.tp_src);
         } else if (f_idx == CLS_F_IDX_TP_DST) {
-            eq = !((fixed->tp_dst ^ wild->flow.tp_dst) & wild->wc.tp_dst_mask);
+            eq = !((fixed->tp_dst ^ wild->match.flow.tp_dst)
+                   & wild->match.wc.masks.tp_dst);
         } else if (f_idx == CLS_F_IDX_DL_SRC) {
-            eq = eth_addr_equal_except(fixed->dl_src, wild->flow.dl_src,
-                                       wild->wc.dl_src_mask);
+            eq = eth_addr_equal_except(fixed->dl_src, wild->match.flow.dl_src,
+                                       wild->match.wc.masks.dl_src);
         } else if (f_idx == CLS_F_IDX_DL_DST) {
-            eq = eth_addr_equal_except(fixed->dl_dst, wild->flow.dl_dst,
-                                       wild->wc.dl_dst_mask);
+            eq = eth_addr_equal_except(fixed->dl_dst, wild->match.flow.dl_dst,
+                                       wild->match.wc.masks.dl_dst);
         } else if (f_idx == CLS_F_IDX_VLAN_TCI) {
-            eq = !((fixed->vlan_tci ^ wild->flow.vlan_tci)
-                   & wild->wc.vlan_tci_mask);
+            eq = !((fixed->vlan_tci ^ wild->match.flow.vlan_tci)
+                   & wild->match.wc.masks.vlan_tci);
         } else if (f_idx == CLS_F_IDX_TUN_ID) {
-            eq = !((fixed->tun_id ^ wild->flow.tun_id) & wild->wc.tun_id_mask);
+            eq = !((fixed->tun_id ^ wild->match.flow.tun_id)
+                   & wild->match.wc.masks.tun_id);
         } else if (f_idx == CLS_F_IDX_METADATA) {
-            eq = !((fixed->metadata ^ wild->flow.metadata)
-                   & wild->wc.metadata_mask);
+            eq = !((fixed->metadata ^ wild->match.flow.metadata)
+                   & wild->match.wc.masks.metadata);
         } else if (f_idx == CLS_F_IDX_NW_DSCP) {
-            eq = !((fixed->nw_tos ^ wild->flow.nw_tos) &
-                   (wild->wc.nw_tos_mask & IP_DSCP_MASK));
+            eq = !((fixed->nw_tos ^ wild->match.flow.nw_tos) &
+                   (wild->match.wc.masks.nw_tos & IP_DSCP_MASK));
         } else if (f_idx == CLS_F_IDX_NW_PROTO) {
-            eq = !((fixed->nw_proto ^ wild->flow.nw_proto)
-                   & wild->wc.nw_proto_mask);
+            eq = !((fixed->nw_proto ^ wild->match.flow.nw_proto)
+                   & wild->match.wc.masks.nw_proto);
         } else if (f_idx == CLS_F_IDX_DL_TYPE) {
-            eq = !((fixed->dl_type ^ wild->flow.dl_type)
-                   & wild->wc.dl_type_mask);
+            eq = !((fixed->dl_type ^ wild->match.flow.dl_type)
+                   & wild->match.wc.masks.dl_type);
+        } else if (f_idx == CLS_F_IDX_IN_PORT) {
+            eq = !((fixed->in_port ^ wild->match.flow.in_port)
+                   & wild->match.wc.masks.in_port);
         } else {
             NOT_REACHED();
         }
@@ -258,8 +256,9 @@ tcls_delete_matches(struct tcls *cls, const struct cls_rule *target)
 
     for (i = 0; i < cls->n_rules; ) {
         struct test_rule *pos = cls->rules[i];
-        if (!flow_wildcards_has_extra(&pos->cls_rule.wc, &target->wc)
-            && match(target, &pos->cls_rule.flow)) {
+        if (!flow_wildcards_has_extra(&pos->cls_rule.match.wc,
+                                      &target->match.wc)
+            && match(target, &pos->cls_rule.match.flow)) {
             tcls_remove(cls, pos);
         } else {
             i++;
@@ -384,6 +383,7 @@ compare_classifiers(struct classifier *cls, struct tcls *tcls)
         unsigned int x;
 
         x = rand () % N_FLOW_VALUES;
+        memset(&flow, 0, sizeof flow);
         flow.nw_src = nw_src_values[get_value(&x, N_NW_SRC_VALUES)];
         flow.nw_dst = nw_dst_values[get_value(&x, N_NW_DST_VALUES)];
         flow.tun_id = tun_id_values[get_value(&x, N_TUN_ID_VALUES)];
@@ -477,45 +477,48 @@ make_rule(int wc_fields, unsigned int priority, int value_pat)
 {
     const struct cls_field *f;
     struct test_rule *rule;
+    struct match match;
 
-    rule = xzalloc(sizeof *rule);
-    cls_rule_init_catchall(&rule->cls_rule, wc_fields ? priority : UINT_MAX);
+    match_init_catchall(&match);
     for (f = &cls_fields[0]; f < &cls_fields[CLS_N_FIELDS]; f++) {
         int f_idx = f - cls_fields;
         int value_idx = (value_pat & (1u << f_idx)) != 0;
-        memcpy((char *) &rule->cls_rule.flow + f->ofs,
+        memcpy((char *) &match.flow + f->ofs,
                values[f_idx][value_idx], f->len);
 
-        if (f->wildcards) {
-            rule->cls_rule.wc.wildcards &= ~f->wildcards;
-        } else if (f_idx == CLS_F_IDX_NW_SRC) {
-            rule->cls_rule.wc.nw_src_mask = htonl(UINT32_MAX);
+        if (f_idx == CLS_F_IDX_NW_SRC) {
+            match.wc.masks.nw_src = htonl(UINT32_MAX);
         } else if (f_idx == CLS_F_IDX_NW_DST) {
-            rule->cls_rule.wc.nw_dst_mask = htonl(UINT32_MAX);
+            match.wc.masks.nw_dst = htonl(UINT32_MAX);
         } else if (f_idx == CLS_F_IDX_TP_SRC) {
-            rule->cls_rule.wc.tp_src_mask = htons(UINT16_MAX);
+            match.wc.masks.tp_src = htons(UINT16_MAX);
         } else if (f_idx == CLS_F_IDX_TP_DST) {
-            rule->cls_rule.wc.tp_dst_mask = htons(UINT16_MAX);
+            match.wc.masks.tp_dst = htons(UINT16_MAX);
         } else if (f_idx == CLS_F_IDX_DL_SRC) {
-            memset(rule->cls_rule.wc.dl_src_mask, 0xff, ETH_ADDR_LEN);
+            memset(match.wc.masks.dl_src, 0xff, ETH_ADDR_LEN);
         } else if (f_idx == CLS_F_IDX_DL_DST) {
-            memset(rule->cls_rule.wc.dl_dst_mask, 0xff, ETH_ADDR_LEN);
+            memset(match.wc.masks.dl_dst, 0xff, ETH_ADDR_LEN);
         } else if (f_idx == CLS_F_IDX_VLAN_TCI) {
-            rule->cls_rule.wc.vlan_tci_mask = htons(UINT16_MAX);
+            match.wc.masks.vlan_tci = htons(UINT16_MAX);
         } else if (f_idx == CLS_F_IDX_TUN_ID) {
-            rule->cls_rule.wc.tun_id_mask = htonll(UINT64_MAX);
+            match.wc.masks.tun_id = htonll(UINT64_MAX);
         } else if (f_idx == CLS_F_IDX_METADATA) {
-            rule->cls_rule.wc.metadata_mask = htonll(UINT64_MAX);
+            match.wc.masks.metadata = htonll(UINT64_MAX);
         } else if (f_idx == CLS_F_IDX_NW_DSCP) {
-            rule->cls_rule.wc.nw_tos_mask |= IP_DSCP_MASK;
+            match.wc.masks.nw_tos |= IP_DSCP_MASK;
         } else if (f_idx == CLS_F_IDX_NW_PROTO) {
-            rule->cls_rule.wc.nw_proto_mask = UINT8_MAX;
+            match.wc.masks.nw_proto = UINT8_MAX;
         } else if (f_idx == CLS_F_IDX_DL_TYPE) {
-            rule->cls_rule.wc.dl_type_mask = htons(UINT16_MAX);
+            match.wc.masks.dl_type = htons(UINT16_MAX);
+        } else if (f_idx == CLS_F_IDX_IN_PORT) {
+            match.wc.masks.in_port = UINT16_MAX;
         } else {
             NOT_REACHED();
         }
     }
+
+    rule = xzalloc(sizeof *rule);
+    cls_rule_init(&rule->cls_rule, &match, wc_fields ? priority : UINT_MAX);
     return rule;
 }
 
@@ -770,7 +773,7 @@ count_ones(unsigned long int x)
     int n = 0;
 
     while (x) {
-        x &= x - 1;
+        x = zero_rightmost_1bit(x);
         n++;
     }