--- Resent the patch since the last one was messed up in format
--- Added and changed AUTHOR information
Found a bug that OVS does not return any error message when the
goto_table_id is smaller than (or equals to) then current table where the
flow is installed. As a result, I install a flow as follows (using
"ovs-ofctl dump-flows br0")
table_id=4, duration=40s, priority=32768, n_packets=0, n_bytes=0,
tcp,in_port=1,dl_src=00:06:07:08:09:0a,dl_dst=00:01:02:03:04:05,nw_src=192.168.0.1,nw_dst=192.168.0.2,nw_tos=0,nw_ecn=0,tp_src=1234,tp_dst=80,actions=goto_table:3
Best,
Jing
Signed-off-by: Jing Ai <ji...@google.com>
---
AUTHORS | 3 ++-
lib/ofp-actions.c | 5 +++++
lib/ofp-actions.h | 1 +
lib/ofp-util.c | 8 +++++---
tests/ofp-actions.at | 4 ++++
utilities/ovs-ofctl.c | 17 ++++++++++++++---
6 files changed, 31 insertions(+), 7 deletions(-)
diff --git a/AUTHORS b/AUTHORS
index d15173e..a2b0c4d 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -45,6 +45,7 @@ Jarno Rajahalme jarno.rajaha...@nsn.com
Jean Tourrilhes j...@hpl.hp.com
Jeremy Stribling st...@nicira.com
Jesse Gross je...@nicira.com
+Jing Ai ji...@google.com
Joe Perches j...@perches.com
Joe Stringer j...@wand.net.nz
Jun Nakajima jun.nakaj...@intel.com
@@ -153,7 +154,7 @@ Jari Sundell sundell.softw...@gmail.com
Jed Daniels openvswi...@jeddaniels.com
Jeff Merrick jmerr...@vmware.com
Jeongkeun Lee jk...@hp.com
-Jing Ai ai_jing2...@hotmail.com
+Jing Ai ji...@google.com
Joan Cirer j...@ev0.net
John Galgay j...@galgay.net
Kevin Mancuso kevin.manc...@rackspace.com
diff --git a/lib/ofp-actions.c b/lib/ofp-actions.c
index 026a376..30f3f65 100644
--- a/lib/ofp-actions.c
+++ b/lib/ofp-actions.c
@@ -1052,6 +1052,7 @@ ofpacts_pull_openflow11_actions(struct ofpbuf
*openflow,
enum ofperr
ofpacts_pull_openflow11_instructions(struct ofpbuf *openflow,
unsigned int instructions_len,
+ uint8_t table_id,
struct ofpbuf *ofpacts)
{
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
@@ -1119,6 +1120,10 @@ ofpacts_pull_openflow11_instructions(struct ofpbuf
*openflow,
oigt = instruction_get_OFPIT11_GOTO_TABLE(
insts[OVSINST_OFPIT11_GOTO_TABLE]);
+ if (table_id >= oigt->table_id) {
+ error = OFPERR_OFPBRC_BAD_TABLE_ID;
+ goto exit;
+ }
ogt = ofpact_put_GOTO_TABLE(ofpacts);
ogt->table_id = oigt->table_id;
}
diff --git a/lib/ofp-actions.h b/lib/ofp-actions.h
index ffceb05..9a74bcc 100644
--- a/lib/ofp-actions.h
+++ b/lib/ofp-actions.h
@@ -490,6 +490,7 @@ enum ofperr ofpacts_pull_openflow11_actions(struct
ofpbuf *openflow,
struct ofpbuf *ofpacts);
enum ofperr ofpacts_pull_openflow11_instructions(struct ofpbuf *openflow,
unsigned int
instructions_len,
+ uint8_t table_id,
struct ofpbuf *ofpacts);
enum ofperr ofpacts_check(const struct ofpact[], size_t ofpacts_len,
const struct flow *, int max_ports);
diff --git a/lib/ofp-util.c b/lib/ofp-util.c
index 3c8d5a2..42021a8 100644
--- a/lib/ofp-util.c
+++ b/lib/ofp-util.c
@@ -1502,7 +1502,8 @@ ofputil_decode_flow_mod(struct ofputil_flow_mod *fm,
return error;
}
- error = ofpacts_pull_openflow11_instructions(&b, b.size, ofpacts);
+ error = ofpacts_pull_openflow11_instructions(&b, b.size,
ofm->table_id,
+ ofpacts);
if (error) {
return error;
}
@@ -1652,7 +1653,7 @@ ofputil_encode_flow_mod(const struct ofputil_flow_mod
*fm,
case OFPUTIL_P_OF13_OXM: {
struct ofp11_flow_mod *ofm;
- msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD,
+ msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD,
ofputil_protocol_to_ofp_version(protocol),
NXM_TYPICAL_LEN + fm->ofpacts_len);
ofm = ofpbuf_put_zeros(msg, sizeof *ofm);
@@ -2014,7 +2015,8 @@ ofputil_decode_flow_stats_reply(struct
ofputil_flow_stats *fs,
}
if (ofpacts_pull_openflow11_instructions(msg, length - sizeof *ofs
-
- padded_match_len,
ofpacts)) {
+ padded_match_len,
+ ofs->table_id, ofpacts)) {
VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad
instructions");
return EINVAL;
}
diff --git a/tests/ofp-actions.at b/tests/ofp-actions.at
index 2ecbdb5..b455bb9 100644
--- a/tests/ofp-actions.at
+++ b/tests/ofp-actions.at
@@ -356,6 +356,10 @@ dnl Goto-Table 1 instruction non-zero padding
# 7: 01 -> 00
0001 0008 01 000001
+dnl Goto-Table 1 instruction go back to the previous table.
+# bad OF1.1 instructions: OFPBRC_BAD_TABLE_ID
+2,0001 0008 01 000000
+
dnl Goto-Table 1
# actions=goto_table:1
0001 0008 01 000000
diff --git a/utilities/ovs-ofctl.c b/utilities/ovs-ofctl.c
index 24b9434..009768a 100644
--- a/utilities/ovs-ofctl.c
+++ b/utilities/ovs-ofctl.c
@@ -2607,18 +2607,29 @@ ofctl_parse_ofp11_instructions(int argc OVS_UNUSED,
char *argv[] OVS_UNUSED)
enum ofperr error;
size_t size;
struct ds s;
+ const char *instructions;
+ const char *table_id;
+
+ /* Parse table_id separated with the follow-up instructions by
",", if
+ * any. */
+ instructions = ds_cstr(&in);
+ table_id = NULL;
+ if (strstr(instructions, ",")) {
+ table_id = strsep(&instructions, ",");
+ }
/* Parse hex bytes. */
ofpbuf_init(&of11_in, 0);
- if (ofpbuf_put_hex(&of11_in, ds_cstr(&in), NULL)[0] != '\0') {
+ if (ofpbuf_put_hex(&of11_in, instructions, NULL)[0] != '\0') {
ovs_fatal(0, "Trailing garbage in hex data");
}
/* Convert to ofpacts. */
ofpbuf_init(&ofpacts, 0);
size = of11_in.size;
- error = ofpacts_pull_openflow11_instructions(&of11_in,
of11_in.size,
- &ofpacts);
+ error = ofpacts_pull_openflow11_instructions(
+ &of11_in, of11_in.size, table_id ? (uint8_t)atoi(table_id) : 0,
+ &ofpacts);
if (error) {
printf("bad OF1.1 instructions: %s\n\n",
ofperr_get_name(error));
ofpbuf_uninit(&ofpacts);
--
1.8.2.1
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