Replace most uses of assert by ovs_assert.

[sliver-openvswitch.git] / lib / ofp-actions.c

diff --git a/lib/ofp-actions.c b/lib/ofp-actions.c
index b758c7c..a439d13 100644 (file)
--- a/lib/ofp-actions.c
+++ b/lib/ofp-actions.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,6 +27,7 @@
 #include "nx-match.h"
 #include "ofp-util.h"
 #include "ofpbuf.h"
+#include "util.h"
 #include "vlog.h"
 
 VLOG_DEFINE_THIS_MODULE(ofp_actions);
@@ -717,7 +718,7 @@ ofpact_from_openflow11(const union ofp_action *a, struct ofpbuf *out)
     case OFPUTIL_OFPAT11_PUSH_VLAN:
         if (((const struct ofp11_action_push *)a)->ethertype !=
             htons(ETH_TYPE_VLAN_8021Q)) {
-            /* TODO:XXX 802.1AD(QinQ) isn't supported at the moment */
+            /* XXX 802.1AD(QinQ) isn't supported at the moment */
             return OFPERR_OFPBAC_BAD_ARGUMENT;
         }
         ofpact_put_PUSH_VLAN(out);
@@ -794,7 +795,7 @@ ofpacts_from_openflow11(const union ofp_action *in, size_t n_in,
     static inline const struct STRUCT *                         \
     instruction_get_##ENUM(const struct ofp11_instruction *inst)\
     {                                                           \
-        assert(inst->type == htons(ENUM));                      \
+        ovs_assert(inst->type == htons(ENUM));                  \
         return (struct STRUCT *)inst;                           \
     }                                                           \
                                                                 \
@@ -1016,7 +1017,7 @@ ofpacts_pull_openflow11_instructions(struct ofpbuf *openflow,
             insts[OVSINST_OFPIT11_CLEAR_ACTIONS]);
         ofpact_put_CLEAR_ACTIONS(ofpacts);
     }
-    /* TODO:XXX Write-Actions */
+    /* XXX Write-Actions */
     if (insts[OVSINST_OFPIT11_WRITE_METADATA]) {
         const struct ofp11_instruction_write_metadata *oiwm;
         struct ofpact_metadata *om;
@@ -1153,23 +1154,38 @@ enum ofperr
 ofpacts_verify(const struct ofpact ofpacts[], size_t ofpacts_len)
 {
     const struct ofpact *a;
-    const struct ofpact_metadata *om = NULL;
+    enum ovs_instruction_type inst;
 
+    inst = OVSINST_OFPIT11_APPLY_ACTIONS;
     OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
-        if (om) {
-            if (a->type == OFPACT_WRITE_METADATA) {
-                VLOG_WARN("duplicate write_metadata instruction specified");
-                return OFPERR_OFPBAC_UNSUPPORTED_ORDER;
+        enum ovs_instruction_type next;
+
+        if (a->type == OFPACT_CLEAR_ACTIONS) {
+            next = OVSINST_OFPIT11_CLEAR_ACTIONS;
+        } else if (a->type == OFPACT_WRITE_METADATA) {
+            next = OVSINST_OFPIT11_WRITE_METADATA;
+        } else if (a->type == OFPACT_GOTO_TABLE) {
+            next = OVSINST_OFPIT11_GOTO_TABLE;
+        } else {
+            next = OVSINST_OFPIT11_APPLY_ACTIONS;
+        }
+
+        if (inst != OVSINST_OFPIT11_APPLY_ACTIONS && next <= inst) {
+            const char *name = ofpact_instruction_name_from_type(inst);
+            const char *next_name = ofpact_instruction_name_from_type(next);
+
+            if (next == inst) {
+                VLOG_WARN("duplicate %s instruction not allowed, for OpenFlow "
+                          "1.1+ compatibility", name);
             } else {
-                VLOG_WARN("write_metadata instruction must be specified after "
-                          "other instructions/actions");
-                return OFPERR_OFPBAC_UNSUPPORTED_ORDER;
+                VLOG_WARN("invalid instruction ordering: %s must appear "
+                          "before %s, for OpenFlow 1.1+ compatibility",
+                          next_name, name);
             }
+            return OFPERR_OFPBAC_UNSUPPORTED_ORDER;
         }
 
-        if (a->type == OFPACT_WRITE_METADATA) {
-            om = (const struct ofpact_metadata *) a;
-        }
+        inst = next;
     }
 
     return 0;
@@ -1476,7 +1492,7 @@ ofpact_to_openflow10(const struct ofpact *a, struct ofpbuf *out)
     case OFPACT_PUSH_VLAN:
     case OFPACT_CLEAR_ACTIONS:
     case OFPACT_GOTO_TABLE:
-        /* TODO:XXX */
+        /* XXX */
         break;
 
     case OFPACT_CONTROLLER:
@@ -1567,7 +1583,7 @@ ofpact_to_openflow11(const struct ofpact *a, struct ofpbuf *out)
         break;
 
     case OFPACT_PUSH_VLAN:
-        /* TODO:XXX ETH_TYPE_VLAN_8021AD case */
+        /* XXX ETH_TYPE_VLAN_8021AD case */
         ofputil_put_OFPAT11_PUSH_VLAN(out)->ethertype =
             htons(ETH_TYPE_VLAN_8021Q);
         break;
@@ -1682,7 +1698,7 @@ ofpacts_put_openflow11_instructions(const struct ofpact ofpacts[],
     const struct ofpact *a;
 
     OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
-        /* TODO:XXX Write-Actions */
+        /* XXX Write-Actions */
 
         if (a->type == OFPACT_CLEAR_ACTIONS) {
             instruction_put_OFPIT11_CLEAR_ACTIONS(openflow);
@@ -1924,7 +1940,7 @@ ofpact_format(const struct ofpact *a, struct ds *s)
         break;
 
     case OFPACT_PUSH_VLAN:
-        /* TODO:XXX 802.1AD case*/
+        /* XXX 802.1AD case*/
         ds_put_format(s, "push_vlan:%#"PRIx16, ETH_TYPE_VLAN_8021Q);
         break;
 
@@ -1940,12 +1956,12 @@ ofpact_format(const struct ofpact *a, struct ds *s)
 
     case OFPACT_SET_IPV4_SRC:
         ds_put_format(s, "mod_nw_src:"IP_FMT,
-                      IP_ARGS(&ofpact_get_SET_IPV4_SRC(a)->ipv4));
+                      IP_ARGS(ofpact_get_SET_IPV4_SRC(a)->ipv4));
         break;
 
     case OFPACT_SET_IPV4_DST:
         ds_put_format(s, "mod_nw_dst:"IP_FMT,
-                      IP_ARGS(&ofpact_get_SET_IPV4_DST(a)->ipv4));
+                      IP_ARGS(ofpact_get_SET_IPV4_DST(a)->ipv4));
         break;
 
     case OFPACT_SET_IPV4_DSCP:
@@ -2079,7 +2095,7 @@ ofpacts_format(const struct ofpact *ofpacts, size_t ofpacts_len,
                 ds_put_cstr(string, ",");
             }
 
-            /* TODO:XXX write-actions */
+            /* XXX write-actions */
             ofpact_format(a, string);
         }
     }
@@ -2116,7 +2132,7 @@ ofpact_init(struct ofpact *ofpact, enum ofpact_type type, size_t len)
 void
 ofpact_update_len(struct ofpbuf *ofpacts, struct ofpact *ofpact)
 {
-    assert(ofpact == ofpacts->l2);
+    ovs_assert(ofpact == ofpacts->l2);
     ofpact->len = (char *) ofpbuf_tail(ofpacts) - (char *) ofpact;
 }