From: Ben Pfaff Date: Wed, 25 Jan 2012 21:54:15 +0000 (-0800) Subject: Add support for parsing and printing OFPFF_* flags. X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a993007bee69e581b0b0a5c6abb2ad0e6ef24881;p=openvswitch Add support for parsing and printing OFPFF_* flags. I intend to use OFPFF_SEND_FLOW_REM in upcoming unit tests. I threw in OFPFF_CHECK_OVERLAP also because it didn't cost me anything. I omitted parsing support for OFPFF_EMERG because we opposed its inclusion from the start and it was removed from OpenFlow 1.2. Signed-off-by: Ben Pfaff --- diff --git a/lib/ofp-parse.c b/lib/ofp-parse.c index 7a91a02e..d5502fab 100644 --- a/lib/ofp-parse.c +++ b/lib/ofp-parse.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2010, 2011 Nicira Networks. + * Copyright (c) 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. @@ -492,7 +492,8 @@ parse_ofp_str(struct ofputil_flow_mod *fm, int command, const char *str_, F_OUT_PORT = 1 << 0, F_ACTIONS = 1 << 1, F_TIMEOUT = 1 << 3, - F_PRIORITY = 1 << 4 + F_PRIORITY = 1 << 4, + F_FLAGS = 1 << 5, } fields; char *string = xstrdup(str_); char *save_ptr = NULL; @@ -505,7 +506,7 @@ parse_ofp_str(struct ofputil_flow_mod *fm, int command, const char *str_, break; case OFPFC_ADD: - fields = F_ACTIONS | F_TIMEOUT | F_PRIORITY; + fields = F_ACTIONS | F_TIMEOUT | F_PRIORITY | F_FLAGS; break; case OFPFC_DELETE: @@ -517,11 +518,11 @@ parse_ofp_str(struct ofputil_flow_mod *fm, int command, const char *str_, break; case OFPFC_MODIFY: - fields = F_ACTIONS | F_TIMEOUT | F_PRIORITY; + fields = F_ACTIONS | F_TIMEOUT | F_PRIORITY | F_FLAGS; break; case OFPFC_MODIFY_STRICT: - fields = F_ACTIONS | F_TIMEOUT | F_PRIORITY; + fields = F_ACTIONS | F_TIMEOUT | F_PRIORITY | F_FLAGS; break; default: @@ -561,6 +562,10 @@ parse_ofp_str(struct ofputil_flow_mod *fm, int command, const char *str_, if (p->nw_proto) { cls_rule_set_nw_proto(&fm->cr, p->nw_proto); } + } else if (fields & F_FLAGS && !strcmp(name, "send_flow_rem")) { + fm->flags |= OFPFF_SEND_FLOW_REM; + } else if (fields & F_FLAGS && !strcmp(name, "check_overlap")) { + fm->flags |= OFPFF_CHECK_OVERLAP; } else { char *value; diff --git a/lib/ofp-print.c b/lib/ofp-print.c index b1c6f97b..f0c134fa 100644 --- a/lib/ofp-print.c +++ b/lib/ofp-print.c @@ -836,7 +836,22 @@ ofp_print_flow_mod(struct ds *s, const struct ofp_header *oh, ds_put_format(s, "buf:0x%"PRIx32" ", fm.buffer_id); } if (fm.flags != 0) { - ds_put_format(s, "flags:0x%"PRIx16" ", fm.flags); + uint16_t flags = fm.flags; + + if (flags & OFPFF_SEND_FLOW_REM) { + ds_put_cstr(s, "send_flow_rem "); + } + if (flags & OFPFF_CHECK_OVERLAP) { + ds_put_cstr(s, "check_overlap "); + } + if (flags & OFPFF_EMERG) { + ds_put_cstr(s, "emerg "); + } + + flags &= ~(OFPFF_SEND_FLOW_REM | OFPFF_CHECK_OVERLAP | OFPFF_EMERG); + if (flags) { + ds_put_format(s, "flags:0x%"PRIx16" ", flags); + } } ofp_print_actions(s, fm.actions, fm.n_actions); diff --git a/tests/ovs-ofctl.at b/tests/ovs-ofctl.at index 5c6cc185..066a6272 100644 --- a/tests/ovs-ofctl.at +++ b/tests/ovs-ofctl.at @@ -25,8 +25,8 @@ actions=bundle_load(symmetric_l4,60,hrw,ofport,NXM_NX_REG0[0..15],slaves:[2,3]) actions=bundle_load(symmetric_l4,60,hrw,ofport,NXM_NX_REG0[0..30],slaves:) actions=output:1,bundle_load(eth_src,0,hrw,ofport,NXM_NX_REG0[16..31],slaves:1),output:2 actions=resubmit:1,resubmit(2),resubmit(,3),resubmit(2,3) -actions=output:1,output:NXM_NX_REG0[],output:2,output:NXM_NX_REG1[16..31],output:3 -actions=output:1,exit,output:2 +send_flow_rem,actions=output:1,output:NXM_NX_REG0[],output:2,output:NXM_NX_REG1[16..31],output:3 +check_overlap,actions=output:1,exit,output:2 ]]) AT_CHECK([ovs-ofctl parse-flows flows.txt @@ -56,8 +56,8 @@ NXT_FLOW_MOD: ADD table:255 actions=bundle_load(symmetric_l4,60,hrw,ofport,NXM_N NXT_FLOW_MOD: ADD table:255 actions=bundle_load(symmetric_l4,60,hrw,ofport,NXM_NX_REG0[0..30],slaves:) NXT_FLOW_MOD: ADD table:255 actions=output:1,bundle_load(eth_src,0,hrw,ofport,NXM_NX_REG0[16..31],slaves:1),output:2 NXT_FLOW_MOD: ADD table:255 actions=resubmit:1,resubmit:2,resubmit(,3),resubmit(2,3) -NXT_FLOW_MOD: ADD table:255 actions=output:1,output:NXM_NX_REG0[],output:2,output:NXM_NX_REG1[16..31],output:3 -NXT_FLOW_MOD: ADD table:255 actions=output:1,exit,output:2 +NXT_FLOW_MOD: ADD table:255 send_flow_rem actions=output:1,output:NXM_NX_REG0[],output:2,output:NXM_NX_REG1[16..31],output:3 +NXT_FLOW_MOD: ADD table:255 check_overlap actions=output:1,exit,output:2 ]]) AT_CLEANUP diff --git a/utilities/ovs-ofctl.8.in b/utilities/ovs-ofctl.8.in index 794e4584..606aaa9c 100644 --- a/utilities/ovs-ofctl.8.in +++ b/utilities/ovs-ofctl.8.in @@ -1054,7 +1054,7 @@ support the following additional options. These options affect only new flows. Thus, for \fBadd\-flow\fR and \fBadd\-flows\fR, these options are always significant, but for \fBmod\-flows\fR they are significant only if the command creates a new flow, that is, their -values do not update existing flows. +values do not update or affect existing flows. . .IP "\fBidle_timeout=\fIseconds\fR" Causes the flow to expire after the given number of seconds of @@ -1066,6 +1066,16 @@ Causes the flow to expire after the given number of seconds, regardless of activity. A value of 0 (the default) gives the flow no hard expiration deadline. . +.IP "\fBsend_flow_rem\fR" +Marks the flow with a flag that causes the switch to generate a ``flow +removed'' message and send it to interested controllers when the flow +later expires or is removed. +. +.IP "\fBcheck_overlap\fR" +Forces the switch to check that the flow match does not overlap that +of any different flow with the same priority in the same table. (This +check is expensive so it is best to avoid it.) +. .PP The \fBdump\-flows\fR, \fBdump\-aggregate\fR, \fBdel\-flow\fR and \fBdel\-flows\fR commands support one additional optional field: