/*
- * 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.
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;
ffff 0020 00002320 0016 000000000000 fedcba9876543210 ffffffffffffffff
dnl Write-Metadata duplicated.
-& ofp_actions|WARN|duplicate write_metadata instruction specified
+& ofp_actions|WARN|duplicate write_metadata instruction not allowed, for OpenFlow 1.1+ compatibility
# bad OF1.1 actions: OFPBAC_UNSUPPORTED_ORDER
ffff 0020 00002320 0016 000000000000 fedcba9876543210 ffffffffffffffff ffff 0020 00002320 0016 000000000000 fedcba9876543210 ffffffffffffffff
dnl Write-Metadata in wrong position.
-& ofp_actions|WARN|write_metadata instruction must be specified after other instructions/actions
+& ofp_actions|WARN|invalid instruction ordering: apply_actions must appear before write_metadata, for OpenFlow 1.1+ compatibility
# bad OF1.1 actions: OFPBAC_UNSUPPORTED_ORDER
ffff 0020 00002320 0016 000000000000 fedcba9876543210 ffffffffffffffff ffff 0010 00002320 0002 0000 12345678
# bad OF1.1 instructions: OFPBAC_UNSUPPORTED_ORDER
0002 0018 00000000 fedcba9876543210 ff00ff00ff00ff00 0002 0018 00000000 fedcba9876543210 ff00ff00ff00ff00
-dnl Write-Metadata in wrong position.
-& ofp_actions|WARN|write_metadata instruction must be specified after other instructions/actions
-# bad OF1.1 instructions: OFPBAC_UNSUPPORTED_ORDER
+dnl Write-Metadata in wrong position (OpenFlow 1.1+ disregards the order
+dnl and OVS reorders it to the canonical order)
+# actions=write_metadata:0xfedcba9876543210,goto_table:1
+# 1: 01 -> 02
+# 3: 08 -> 18
+# 4: 01 -> 00
+# 8: 00 -> fe
+# 9: 02 -> dc
+# 10: 00 -> ba
+# 11: 18 -> 98
+# 12: 00 -> 76
+# 13: 00 -> 54
+# 14: 00 -> 32
+# 15: 00 -> 10
+# 16: fe -> ff
+# 17: dc -> ff
+# 18: ba -> ff
+# 19: 98 -> ff
+# 20: 76 -> ff
+# 21: 54 -> ff
+# 22: 32 -> ff
+# 23: 10 -> ff
+# 24: ff -> 00
+# 25: ff -> 01
+# 26: ff -> 00
+# 27: ff -> 08
+# 28: ff -> 01
+# 29: ff -> 00
+# 30: ff -> 00
+# 31: ff -> 00
0001 0008 01 000000 0002 0018 00000000 fedcba9876543210 ffffffffffffffff
dnl Write-Actions not supported yet.