Add support for bitwise matching on TCP and UDP ports.

[sliver-openvswitch.git] / lib / flow.c

diff --git a/lib/flow.c b/lib/flow.c
index dc2bb1c..9f83b2c 100644 (file)
--- a/lib/flow.c
+++ b/lib/flow.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2008, 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.
@@ -444,7 +444,7 @@ flow_zero_wildcards(struct flow *flow, const struct flow_wildcards *wildcards)
     const flow_wildcards_t wc = wildcards->wildcards;
     int i;
 
-    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 7);
+    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 8);
 
     for (i = 0; i < FLOW_N_REGS; i++) {
         flow->regs[i] &= wildcards->reg_masks[i];
@@ -459,12 +459,8 @@ flow_zero_wildcards(struct flow *flow, const struct flow_wildcards *wildcards)
     if (wc & FWW_DL_TYPE) {
         flow->dl_type = htons(0);
     }
-    if (wc & FWW_TP_SRC) {
-        flow->tp_src = htons(0);
-    }
-    if (wc & FWW_TP_DST) {
-        flow->tp_dst = htons(0);
-    }
+    flow->tp_src &= wildcards->tp_src_mask;
+    flow->tp_dst &= wildcards->tp_dst_mask;
     if (wc & FWW_DL_SRC) {
         memset(flow->dl_src, 0, sizeof flow->dl_src);
     }
@@ -598,7 +594,7 @@ flow_print(FILE *stream, const struct flow *flow)
 void
 flow_wildcards_init_catchall(struct flow_wildcards *wc)
 {
-    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 7);
+    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 8);
 
     wc->wildcards = FWW_ALL;
     wc->tun_id_mask = htonll(0);
@@ -609,6 +605,8 @@ flow_wildcards_init_catchall(struct flow_wildcards *wc)
     memset(wc->reg_masks, 0, sizeof wc->reg_masks);
     wc->vlan_tci_mask = htons(0);
     wc->nw_frag_mask = 0;
+    wc->tp_src_mask = htons(0);
+    wc->tp_dst_mask = htons(0);
     memset(wc->zeros, 0, sizeof wc->zeros);
 }
 
@@ -617,7 +615,7 @@ flow_wildcards_init_catchall(struct flow_wildcards *wc)
 void
 flow_wildcards_init_exact(struct flow_wildcards *wc)
 {
-    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 7);
+    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 8);
 
     wc->wildcards = 0;
     wc->tun_id_mask = htonll(UINT64_MAX);
@@ -628,6 +626,8 @@ flow_wildcards_init_exact(struct flow_wildcards *wc)
     memset(wc->reg_masks, 0xff, sizeof wc->reg_masks);
     wc->vlan_tci_mask = htons(UINT16_MAX);
     wc->nw_frag_mask = UINT8_MAX;
+    wc->tp_src_mask = htons(UINT16_MAX);
+    wc->tp_dst_mask = htons(UINT16_MAX);
     memset(wc->zeros, 0, sizeof wc->zeros);
 }
 
@@ -638,12 +638,14 @@ flow_wildcards_is_exact(const struct flow_wildcards *wc)
 {
     int i;
 
-    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 7);
+    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 8);
 
     if (wc->wildcards
         || wc->tun_id_mask != htonll(UINT64_MAX)
         || wc->nw_src_mask != htonl(UINT32_MAX)
         || wc->nw_dst_mask != htonl(UINT32_MAX)
+        || wc->tp_src_mask != htons(UINT16_MAX)
+        || wc->tp_dst_mask != htons(UINT16_MAX)
         || wc->vlan_tci_mask != htons(UINT16_MAX)
         || !ipv6_mask_is_exact(&wc->ipv6_src_mask)
         || !ipv6_mask_is_exact(&wc->ipv6_dst_mask)
@@ -667,12 +669,14 @@ flow_wildcards_is_catchall(const struct flow_wildcards *wc)
 {
     int i;
 
-    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 7);
+    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 8);
 
     if (wc->wildcards != FWW_ALL
         || wc->tun_id_mask != htonll(0)
         || wc->nw_src_mask != htonl(0)
         || wc->nw_dst_mask != htonl(0)
+        || wc->tp_src_mask != htons(0)
+        || wc->tp_dst_mask != htons(0)
         || wc->vlan_tci_mask != htons(0)
         || !ipv6_mask_is_any(&wc->ipv6_src_mask)
         || !ipv6_mask_is_any(&wc->ipv6_dst_mask)
@@ -699,7 +703,7 @@ flow_wildcards_combine(struct flow_wildcards *dst,
 {
     int i;
 
-    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 7);
+    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 8);
 
     dst->wildcards = src1->wildcards | src2->wildcards;
     dst->tun_id_mask = src1->tun_id_mask & src2->tun_id_mask;
@@ -713,6 +717,8 @@ flow_wildcards_combine(struct flow_wildcards *dst,
         dst->reg_masks[i] = src1->reg_masks[i] & src2->reg_masks[i];
     }
     dst->vlan_tci_mask = src1->vlan_tci_mask & src2->vlan_tci_mask;
+    dst->tp_src_mask = src1->tp_src_mask & src2->tp_src_mask;
+    dst->tp_dst_mask = src1->tp_dst_mask & src2->tp_dst_mask;
 }
 
 /* Returns a hash of the wildcards in 'wc'. */
@@ -734,7 +740,7 @@ flow_wildcards_equal(const struct flow_wildcards *a,
 {
     int i;
 
-    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 7);
+    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 8);
 
     if (a->wildcards != b->wildcards
         || a->tun_id_mask != b->tun_id_mask
@@ -742,7 +748,9 @@ flow_wildcards_equal(const struct flow_wildcards *a,
         || a->nw_dst_mask != b->nw_dst_mask
         || a->vlan_tci_mask != b->vlan_tci_mask
         || !ipv6_addr_equals(&a->ipv6_src_mask, &b->ipv6_src_mask)
-        || !ipv6_addr_equals(&a->ipv6_dst_mask, &b->ipv6_dst_mask)) {
+        || !ipv6_addr_equals(&a->ipv6_dst_mask, &b->ipv6_dst_mask)
+        || a->tp_src_mask != b->tp_src_mask
+        || a->tp_dst_mask != b->tp_dst_mask) {
         return false;
     }
 
@@ -764,7 +772,7 @@ flow_wildcards_has_extra(const struct flow_wildcards *a,
     int i;
     struct in6_addr ipv6_masked;
 
-    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 7);
+    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 8);
 
     for (i = 0; i < FLOW_N_REGS; i++) {
         if ((a->reg_masks[i] & b->reg_masks[i]) != b->reg_masks[i]) {
@@ -786,7 +794,9 @@ flow_wildcards_has_extra(const struct flow_wildcards *a,
             || (a->tun_id_mask & b->tun_id_mask) != b->tun_id_mask
             || (a->nw_src_mask & b->nw_src_mask) != b->nw_src_mask
             || (a->nw_dst_mask & b->nw_dst_mask) != b->nw_dst_mask
-            || (a->vlan_tci_mask & b->vlan_tci_mask) != b->vlan_tci_mask);
+            || (a->vlan_tci_mask & b->vlan_tci_mask) != b->vlan_tci_mask
+            || (a->tp_src_mask & b->tp_src_mask) != b->tp_src_mask
+            || (a->tp_dst_mask & b->tp_dst_mask) != b->tp_dst_mask);
 }
 
 /* Sets the wildcard mask for register 'idx' in 'wc' to 'mask'.