#include <errno.h>
#include <inttypes.h>
#include <stdlib.h>
+#include "autopath.h"
#include "byte-order.h"
#include "classifier.h"
#include "dynamic-string.h"
VLOG_DEFINE_THIS_MODULE(ofp_util);
+static ovs_be32 normalize_wildcards(const struct ofp_match *);
+
/* Rate limit for OpenFlow message parse errors. These always indicate a bug
* in the peer and so there's not much point in showing a lot of them. */
static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5);
};
/* Converts the ofp_match in 'match' into a cls_rule in 'rule', with the given
- * 'priority'.
- *
- * 'flow_format' must either NXFF_OPENFLOW10 or NXFF_TUN_ID_FROM_COOKIE. In
- * the latter case only, 'flow''s tun_id field will be taken from the high bits
- * of 'cookie', if 'match''s wildcards do not indicate that tun_id is
- * wildcarded. */
+ * 'priority'. */
void
ofputil_cls_rule_from_match(const struct ofp_match *match,
- unsigned int priority,
- enum nx_flow_format flow_format,
- ovs_be64 cookie, struct cls_rule *rule)
+ unsigned int priority, struct cls_rule *rule)
{
struct flow_wildcards *wc = &rule->wc;
unsigned int ofpfw;
ovs_be16 vid, pcp;
/* Initialize rule->priority. */
- ofpfw = ntohl(match->wildcards);
- ofpfw &= flow_format == NXFF_TUN_ID_FROM_COOKIE ? OVSFW_ALL : OFPFW_ALL;
+ ofpfw = ntohl(match->wildcards) & OFPFW_ALL;
rule->priority = !ofpfw ? UINT16_MAX : priority;
/* Initialize most of rule->wc. */
wc->nw_src_mask = ofputil_wcbits_to_netmask(ofpfw >> OFPFW_NW_SRC_SHIFT);
wc->nw_dst_mask = ofputil_wcbits_to_netmask(ofpfw >> OFPFW_NW_DST_SHIFT);
- if (flow_format == NXFF_TUN_ID_FROM_COOKIE && !(ofpfw & NXFW_TUN_ID)) {
- rule->flow.tun_id = htonll(ntohll(cookie) >> 32);
- }
-
if (ofpfw & OFPFW_DL_DST) {
/* OpenFlow 1.0 OFPFW_DL_DST covers the whole Ethernet destination, but
* Open vSwitch breaks the Ethernet destination into bits as FWW_DL_DST
cls_rule_zero_wildcarded_fields(rule);
}
-/* Convert 'rule' into the OpenFlow match structure 'match'. 'flow_format'
- * must either NXFF_OPENFLOW10 or NXFF_TUN_ID_FROM_COOKIE.
- *
- * The NXFF_TUN_ID_FROM_COOKIE flow format requires modifying the flow cookie.
- * This function can help with that, if 'cookie_out' is nonnull. For
- * NXFF_OPENFLOW10, or if the tunnel ID is wildcarded, 'cookie_in' will be
- * copied directly to '*cookie_out'. For NXFF_TUN_ID_FROM_COOKIE when tunnel
- * ID is matched, 'cookie_in' will be modified appropriately before setting
- * '*cookie_out'.
- */
+/* Convert 'rule' into the OpenFlow match structure 'match'. */
void
-ofputil_cls_rule_to_match(const struct cls_rule *rule,
- enum nx_flow_format flow_format,
- struct ofp_match *match,
- ovs_be64 cookie_in, ovs_be64 *cookie_out)
+ofputil_cls_rule_to_match(const struct cls_rule *rule, struct ofp_match *match)
{
const struct flow_wildcards *wc = &rule->wc;
unsigned int ofpfw;
ofpfw |= OFPFW_NW_TOS;
}
- /* Tunnel ID. */
- if (flow_format == NXFF_TUN_ID_FROM_COOKIE) {
- if (wc->tun_id_mask == htonll(0)) {
- ofpfw |= NXFW_TUN_ID;
- } else {
- uint32_t cookie_lo = ntohll(cookie_in);
- uint32_t cookie_hi = ntohll(rule->flow.tun_id);
- cookie_in = htonll(cookie_lo | ((uint64_t) cookie_hi << 32));
- }
- }
- if (cookie_out) {
- *cookie_out = cookie_in;
- }
-
/* Translate VLANs. */
match->dl_vlan = htons(0);
match->dl_vlan_pcp = 0;
const struct ofputil_msg_type **typep)
{
static const struct ofputil_msg_type nxt_messages[] = {
- { OFPUTIL_NXT_TUN_ID_FROM_COOKIE,
- NXT_TUN_ID_FROM_COOKIE, "NXT_TUN_ID_FROM_COOKIE",
- sizeof(struct nxt_tun_id_cookie), 0 },
-
{ OFPUTIL_NXT_ROLE_REQUEST,
NXT_ROLE_REQUEST, "NXT_ROLE_REQUEST",
sizeof(struct nx_role_request), 0 },
{
switch (flow_format) {
case NXFF_OPENFLOW10:
- case NXFF_TUN_ID_FROM_COOKIE:
case NXFF_NXM:
return true;
}
switch (flow_format) {
case NXFF_OPENFLOW10:
return "openflow10";
- case NXFF_TUN_ID_FROM_COOKIE:
- return "tun_id_from_cookie";
case NXFF_NXM:
return "nxm";
default:
ofputil_flow_format_from_string(const char *s)
{
return (!strcmp(s, "openflow10") ? NXFF_OPENFLOW10
- : !strcmp(s, "tun_id_from_cookie") ? NXFF_TUN_ID_FROM_COOKIE
: !strcmp(s, "nxm") ? NXFF_NXM
: -1);
}
return true;
}
-static inline bool
-is_nxm_required(const struct cls_rule *rule, bool cookie_support,
- ovs_be64 cookie)
+/* Returns the minimum nx_flow_format to use for sending 'rule' to a switch
+ * (e.g. to add or remove a flow). Only NXM can handle tunnel IDs, registers,
+ * or fixing the Ethernet multicast bit. Otherwise, it's better to use
+ * NXFF_OPENFLOW10 for backward compatibility. */
+enum nx_flow_format
+ofputil_min_flow_format(const struct cls_rule *rule)
{
const struct flow_wildcards *wc = &rule->wc;
- uint32_t cookie_hi;
- uint64_t tun_id;
/* Only NXM supports separately wildcards the Ethernet multicast bit. */
if (!(wc->wildcards & FWW_DL_DST) != !(wc->wildcards & FWW_ETH_MCAST)) {
- return true;
+ return NXFF_NXM;
}
/* Only NXM supports matching ARP hardware addresses. */
if (!(wc->wildcards & FWW_ARP_SHA) || !(wc->wildcards & FWW_ARP_THA)) {
- return true;
+ return NXFF_NXM;
}
/* Only NXM supports matching IPv6 traffic. */
if (!(wc->wildcards & FWW_DL_TYPE)
&& (rule->flow.dl_type == htons(ETH_TYPE_IPV6))) {
- return true;
+ return NXFF_NXM;
}
/* Only NXM supports matching registers. */
if (!regs_fully_wildcarded(wc)) {
- return true;
+ return NXFF_NXM;
}
- switch (wc->tun_id_mask) {
- case CONSTANT_HTONLL(0):
- /* Other formats can fully wildcard tun_id. */
- break;
-
- case CONSTANT_HTONLL(UINT64_MAX):
- /* Only NXM supports tunnel ID matching without a cookie. */
- if (!cookie_support) {
- return true;
- }
-
- /* Only NXM supports 64-bit tunnel IDs. */
- tun_id = ntohll(rule->flow.tun_id);
- if (tun_id > UINT32_MAX) {
- return true;
- }
-
- /* Only NXM supports a cookie whose top 32 bits conflict with the
- * tunnel ID. */
- cookie_hi = ntohll(cookie) >> 32;
- if (cookie_hi && cookie_hi != tun_id) {
- return true;
- }
- break;
-
- default:
- /* Only NXM supports partial matches on tunnel ID. */
- return true;
+ /* Only NXM supports matching tun_id. */
+ if (wc->tun_id_mask != htonll(0)) {
+ return NXFF_NXM;
}
/* Other formats can express this rule. */
- return false;
-}
-
-/* Returns the minimum nx_flow_format to use for sending 'rule' to a switch
- * (e.g. to add or remove a flow). 'cookie_support' should be true if the
- * command to be sent includes a flow cookie (as OFPT_FLOW_MOD does, for
- * example) or false if the command does not (OFPST_FLOW and OFPST_AGGREGATE do
- * not, for example). If 'cookie_support' is true, then 'cookie' should be the
- * cookie to be sent; otherwise its value is ignored.
- *
- * The "best" flow format is chosen on this basis:
- *
- * - It must be capable of expressing the rule. NXFF_OPENFLOW10 flows can't
- * handle tunnel IDs. NXFF_TUN_ID_FROM_COOKIE flows can't handle registers
- * or fixing the Ethernet multicast bit, and can't handle tunnel IDs that
- * conflict with the high 32 bits of the cookie or commands that don't
- * support cookies.
- *
- * - Otherwise, the chosen format should be as backward compatible as
- * possible. (NXFF_OPENFLOW10 is more backward compatible than
- * NXFF_TUN_ID_FROM_COOKIE, which is more backward compatible than
- * NXFF_NXM.)
- */
-enum nx_flow_format
-ofputil_min_flow_format(const struct cls_rule *rule, bool cookie_support,
- ovs_be64 cookie)
-{
- if (is_nxm_required(rule, cookie_support, cookie)) {
- return NXFF_NXM;
- } else if (rule->wc.tun_id_mask != htonll(0)) {
- return NXFF_TUN_ID_FROM_COOKIE;
- } else {
- return NXFF_OPENFLOW10;
- }
+ return NXFF_OPENFLOW10;
}
/* Returns an OpenFlow message that can be used to set the flow format to
struct ofpbuf *
ofputil_make_set_flow_format(enum nx_flow_format flow_format)
{
+ struct nxt_set_flow_format *sff;
struct ofpbuf *msg;
- if (flow_format == NXFF_OPENFLOW10
- || flow_format == NXFF_TUN_ID_FROM_COOKIE) {
- struct nxt_tun_id_cookie *tic;
-
- tic = make_nxmsg(sizeof *tic, NXT_TUN_ID_FROM_COOKIE, &msg);
- tic->set = flow_format == NXFF_TUN_ID_FROM_COOKIE;
- } else {
- struct nxt_set_flow_format *sff;
-
- sff = make_nxmsg(sizeof *sff, NXT_SET_FLOW_FORMAT, &msg);
- sff->format = htonl(flow_format);
- }
+ sff = make_nxmsg(sizeof *sff, NXT_SET_FLOW_FORMAT, &msg);
+ sff->format = htonl(flow_format);
return msg;
}
* flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error
* code.
*
- * For OFPT_FLOW_MOD messages, 'flow_format' should be the current flow format
- * at the time when the message was received. Otherwise 'flow_format' is
- * ignored.
- *
* Does not validate the flow_mod actions. */
int
-ofputil_decode_flow_mod(struct flow_mod *fm, const struct ofp_header *oh,
- enum nx_flow_format flow_format)
+ofputil_decode_flow_mod(struct flow_mod *fm, const struct ofp_header *oh)
{
const struct ofputil_msg_type *type;
struct ofpbuf b;
ofputil_decode_msg_type(oh, &type);
if (ofputil_msg_type_code(type) == OFPUTIL_OFPT_FLOW_MOD) {
/* Standard OpenFlow flow_mod. */
- struct ofp_match match, orig_match;
const struct ofp_flow_mod *ofm;
+ uint16_t priority;
+ ovs_be32 wc;
int error;
/* Dissect the message. */
return error;
}
+ /* Set priority based on original wildcards. Normally we'd allow
+ * ofputil_cls_rule_from_match() to do this for us, but
+ * normalize_wildcards() can put wildcards where the original flow
+ * didn't have them. */
+ priority = ntohs(ofm->priority);
+ if (!(ofm->match.wildcards & htonl(OFPFW_ALL))) {
+ priority = UINT16_MAX;
+ }
+
/* Normalize ofm->match. If normalization actually changes anything,
* then log the differences. */
- match = ofm->match;
- match.pad1[0] = match.pad2[0] = 0;
- orig_match = match;
- normalize_match(&match);
- if (memcmp(&match, &orig_match, sizeof orig_match)) {
+ wc = normalize_wildcards(&ofm->match);
+ if (wc == ofm->match.wildcards) {
+ ofputil_cls_rule_from_match(&ofm->match, priority, &fm->cr);
+ } else {
+ struct ofp_match match = ofm->match;
+ match.wildcards = wc;
+ ofputil_cls_rule_from_match(&match, priority, &fm->cr);
+
if (!VLOG_DROP_INFO(&bad_ofmsg_rl)) {
- char *old = ofp_match_to_literal_string(&orig_match);
- char *new = ofp_match_to_literal_string(&match);
+ char *pre = ofp_match_to_string(&ofm->match, 1);
+ char *post = ofp_match_to_string(&match, 1);
VLOG_INFO("normalization changed ofp_match, details:");
- VLOG_INFO(" pre: %s", old);
- VLOG_INFO("post: %s", new);
- free(old);
- free(new);
+ VLOG_INFO(" pre: %s", pre);
+ VLOG_INFO("post: %s", post);
+ free(pre);
+ free(post);
}
}
/* Translate the message. */
- ofputil_cls_rule_from_match(&match, ntohs(ofm->priority), flow_format,
- ofm->cookie, &fm->cr);
fm->cookie = ofm->cookie;
fm->command = ntohs(ofm->command);
fm->idle_timeout = ntohs(ofm->idle_timeout);
size_t actions_len = fm->n_actions * sizeof *fm->actions;
struct ofpbuf *msg;
- if (flow_format == NXFF_OPENFLOW10
- || flow_format == NXFF_TUN_ID_FROM_COOKIE) {
+ if (flow_format == NXFF_OPENFLOW10) {
struct ofp_flow_mod *ofm;
msg = ofpbuf_new(sizeof *ofm + actions_len);
ofm = put_openflow(sizeof *ofm, OFPT_FLOW_MOD, msg);
- ofputil_cls_rule_to_match(&fm->cr, flow_format, &ofm->match,
- fm->cookie, &ofm->cookie);
+ ofputil_cls_rule_to_match(&fm->cr, &ofm->match);
+ ofm->cookie = fm->cookie;
ofm->command = htons(fm->command);
ofm->idle_timeout = htons(fm->idle_timeout);
ofm->hard_timeout = htons(fm->hard_timeout);
static int
ofputil_decode_ofpst_flow_request(struct flow_stats_request *fsr,
const struct ofp_header *oh,
- enum nx_flow_format flow_format,
bool aggregate)
{
const struct ofp_flow_stats_request *ofsr = ofputil_stats_body(oh);
fsr->aggregate = aggregate;
- ofputil_cls_rule_from_match(&ofsr->match, 0, flow_format, 0, &fsr->match);
+ ofputil_cls_rule_from_match(&ofsr->match, 0, &fsr->match);
fsr->out_port = ntohs(ofsr->out_port);
fsr->table_id = ofsr->table_id;
}
/* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE
- * request 'oh', received when the current flow format was 'flow_format', into
- * an abstract flow_stats_request in 'fsr'. Returns 0 if successful, otherwise
- * an OpenFlow error code.
- *
- * For OFPST_FLOW and OFPST_AGGREGATE messages, 'flow_format' should be the
- * current flow format at the time when the message was received. Otherwise
- * 'flow_format' is ignored. */
+ * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if
+ * successful, otherwise an OpenFlow error code. */
int
ofputil_decode_flow_stats_request(struct flow_stats_request *fsr,
- const struct ofp_header *oh,
- enum nx_flow_format flow_format)
+ const struct ofp_header *oh)
{
const struct ofputil_msg_type *type;
struct ofpbuf b;
code = ofputil_msg_type_code(type);
switch (code) {
case OFPUTIL_OFPST_FLOW_REQUEST:
- return ofputil_decode_ofpst_flow_request(fsr, oh, flow_format, false);
+ return ofputil_decode_ofpst_flow_request(fsr, oh, false);
case OFPUTIL_OFPST_AGGREGATE_REQUEST:
- return ofputil_decode_ofpst_flow_request(fsr, oh, flow_format, true);
+ return ofputil_decode_ofpst_flow_request(fsr, oh, true);
case OFPUTIL_NXST_FLOW_REQUEST:
return ofputil_decode_nxst_flow_request(fsr, oh, false);
{
struct ofpbuf *msg;
- if (flow_format == NXFF_OPENFLOW10
- || flow_format == NXFF_TUN_ID_FROM_COOKIE) {
+ if (flow_format == NXFF_OPENFLOW10) {
struct ofp_flow_stats_request *ofsr;
int type;
type = fsr->aggregate ? OFPST_AGGREGATE : OFPST_FLOW;
ofsr = ofputil_make_stats_request(sizeof *ofsr, type, &msg);
- ofputil_cls_rule_to_match(&fsr->match, flow_format, &ofsr->match,
- 0, NULL);
+ ofputil_cls_rule_to_match(&fsr->match, &ofsr->match);
ofsr->table_id = fsr->table_id;
ofsr->out_port = htons(fsr->out_port);
} else if (flow_format == NXFF_NXM) {
}
/* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract
- * ofputil_flow_stats in 'fs'. For OFPST_FLOW messages, 'flow_format' should
- * be the current flow format at the time when the request corresponding to the
- * reply in 'msg' was sent. Otherwise 'flow_format' is ignored.
+ * ofputil_flow_stats in 'fs'.
*
* Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single
* OpenFlow message. Calling this function multiple times for a single 'msg'
* otherwise a positive errno value. */
int
ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs,
- struct ofpbuf *msg,
- enum nx_flow_format flow_format)
+ struct ofpbuf *msg)
{
const struct ofputil_msg_type *type;
int code;
fs->cookie = get_32aligned_be64(&ofs->cookie);
ofputil_cls_rule_from_match(&ofs->match, ntohs(ofs->priority),
- flow_format, fs->cookie, &fs->rule);
+ &fs->rule);
fs->table_id = ofs->table_id;
fs->duration_sec = ntohl(ofs->duration_sec);
fs->duration_nsec = ntohl(ofs->duration_nsec);
return 0;
}
-/* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh', received
- * when the current flow format was 'flow_format', into an abstract
- * ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise an
- * OpenFlow error code.
- *
- * For OFPT_FLOW_REMOVED messages, 'flow_format' should be the current flow
- * format at the time when the message was received. Otherwise 'flow_format'
- * is ignored. */
+/* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an
+ * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise
+ * an OpenFlow error code. */
int
ofputil_decode_flow_removed(struct ofputil_flow_removed *fr,
- const struct ofp_header *oh,
- enum nx_flow_format flow_format)
+ const struct ofp_header *oh)
{
const struct ofputil_msg_type *type;
enum ofputil_msg_code code;
ofr = (const struct ofp_flow_removed *) oh;
ofputil_cls_rule_from_match(&ofr->match, ntohs(ofr->priority),
- flow_format, ofr->cookie, &fr->rule);
+ &fr->rule);
fr->cookie = ofr->cookie;
fr->reason = ofr->reason;
fr->duration_sec = ntohl(ofr->duration_sec);
{
struct ofpbuf *msg;
- if (flow_format == NXFF_OPENFLOW10
- || flow_format == NXFF_TUN_ID_FROM_COOKIE) {
+ if (flow_format == NXFF_OPENFLOW10) {
struct ofp_flow_removed *ofr;
ofr = make_openflow_xid(sizeof *ofr, OFPT_FLOW_REMOVED, htonl(0),
&msg);
- ofputil_cls_rule_to_match(&fr->rule, flow_format, &ofr->match,
- fr->cookie, &ofr->cookie);
+ ofputil_cls_rule_to_match(&fr->rule, &ofr->match);
ofr->priority = htons(fr->rule.priority);
ofr->reason = fr->reason;
ofr->duration_sec = htonl(fr->duration_sec);
ofm->header.length = htons(size);
ofm->cookie = 0;
ofm->priority = htons(MIN(rule->priority, UINT16_MAX));
- ofputil_cls_rule_to_match(rule, NXFF_OPENFLOW10, &ofm->match, 0, NULL);
+ ofputil_cls_rule_to_match(rule, &ofm->match);
ofm->command = htons(command);
return out;
}
return out;
}
-/* Converts the members of 'opp' from host to network byte order. */
-void
-hton_ofp_phy_port(struct ofp_phy_port *opp)
-{
- opp->port_no = htons(opp->port_no);
- opp->config = htonl(opp->config);
- opp->state = htonl(opp->state);
- opp->curr = htonl(opp->curr);
- opp->advertised = htonl(opp->advertised);
- opp->supported = htonl(opp->supported);
- opp->peer = htonl(opp->peer);
-}
-
static int
check_action_exact_len(const union ofp_action *a, unsigned int len,
unsigned int required_len)
const struct flow *flow)
{
const struct nx_action_header *nah;
- uint16_t subtype;
+ int subtype;
int error;
if (len < 16) {
subtype = ntohs(nah->subtype);
if (subtype > TYPE_MAXIMUM(enum nx_action_subtype)) {
- /* This is necessary because enum nx_action_subtype is probably an
+ /* This is necessary because enum nx_action_subtype may be an
* 8-bit type, so the cast below throws away the top 8 bits. */
return ofp_mkerr(OFPET_BAD_ACTION, OFPBAC_BAD_VENDOR_TYPE);
}
}
return multipath_check((const struct nx_action_multipath *) a);
+ case NXAST_AUTOPATH:
+ error = check_nx_action_exact_len(
+ nah, len, sizeof(struct nx_action_autopath));
+ if (error) {
+ return error;
+ }
+ return autopath_check((const struct nx_action_autopath *) a);
+
case NXAST_SNAT__OBSOLETE:
default:
VLOG_WARN_RL(&bad_ofmsg_rl,
- "unknown Nicira vendor action subtype %"PRIu16,
- ntohs(nah->subtype));
+ "unknown Nicira vendor action subtype %d", subtype);
return ofp_mkerr(OFPET_BAD_ACTION, OFPBAC_BAD_VENDOR_TYPE);
}
}
if (error) {
return error;
}
- if (a->vlan_vid.vlan_vid & ~7) {
+ if (a->vlan_pcp.vlan_pcp & ~7) {
return ofp_mkerr(OFPET_BAD_ACTION, OFPBAC_BAD_ARGUMENT);
}
return 0;
return 0;
}
-/* Returns true if 'action' outputs to 'port' (which must be in network byte
- * order), false otherwise. */
+/* Returns true if 'action' outputs to 'port', false otherwise. */
bool
-action_outputs_to_port(const union ofp_action *action, uint16_t port)
+action_outputs_to_port(const union ofp_action *action, ovs_be16 port)
{
switch (ntohs(action->type)) {
case OFPAT_OUTPUT:
}
}
-void
-normalize_match(struct ofp_match *m)
+static ovs_be32
+normalize_wildcards(const struct ofp_match *m)
{
- enum { OFPFW_NW = (OFPFW_NW_SRC_MASK | OFPFW_NW_DST_MASK | OFPFW_NW_PROTO
+ enum { OFPFW_NW = (OFPFW_NW_SRC_ALL | OFPFW_NW_DST_ALL | OFPFW_NW_PROTO
| OFPFW_NW_TOS) };
enum { OFPFW_TP = OFPFW_TP_SRC | OFPFW_TP_DST };
- uint32_t wc;
-
- wc = ntohl(m->wildcards) & OVSFW_ALL;
- if (wc & OFPFW_DL_TYPE) {
- m->dl_type = 0;
+ ovs_be32 wc;
- /* Can't sensibly match on network or transport headers if the
- * data link type is unknown. */
- wc |= OFPFW_NW | OFPFW_TP;
- m->nw_src = m->nw_dst = m->nw_proto = m->nw_tos = 0;
- m->tp_src = m->tp_dst = 0;
+ wc = m->wildcards;
+ if (wc & htonl(OFPFW_DL_TYPE)) {
+ wc |= htonl(OFPFW_NW | OFPFW_TP);
} else if (m->dl_type == htons(ETH_TYPE_IP)) {
- if (wc & OFPFW_NW_PROTO) {
- m->nw_proto = 0;
-
- /* Can't sensibly match on transport headers if the network
- * protocol is unknown. */
- wc |= OFPFW_TP;
- m->tp_src = m->tp_dst = 0;
- } else if (m->nw_proto == IPPROTO_TCP ||
- m->nw_proto == IPPROTO_UDP ||
- m->nw_proto == IPPROTO_ICMP) {
- if (wc & OFPFW_TP_SRC) {
- m->tp_src = 0;
- }
- if (wc & OFPFW_TP_DST) {
- m->tp_dst = 0;
- }
- } else {
- /* Transport layer fields will always be extracted as zeros, so we
- * can do an exact-match on those values. */
- wc &= ~OFPFW_TP;
- m->tp_src = m->tp_dst = 0;
- }
- if (wc & OFPFW_NW_SRC_MASK) {
- m->nw_src &= ofputil_wcbits_to_netmask(wc >> OFPFW_NW_SRC_SHIFT);
- }
- if (wc & OFPFW_NW_DST_MASK) {
- m->nw_dst &= ofputil_wcbits_to_netmask(wc >> OFPFW_NW_DST_SHIFT);
- }
- if (wc & OFPFW_NW_TOS) {
- m->nw_tos = 0;
- } else {
- m->nw_tos &= IP_DSCP_MASK;
+ if (wc & htonl(OFPFW_NW_PROTO) || (m->nw_proto != IPPROTO_TCP &&
+ m->nw_proto != IPPROTO_UDP &&
+ m->nw_proto != IPPROTO_ICMP)) {
+ wc |= htonl(OFPFW_TP);
}
} else if (m->dl_type == htons(ETH_TYPE_ARP)) {
- if (wc & OFPFW_NW_PROTO) {
- m->nw_proto = 0;
- }
- if (wc & OFPFW_NW_SRC_MASK) {
- m->nw_src &= ofputil_wcbits_to_netmask(wc >> OFPFW_NW_SRC_SHIFT);
- }
- if (wc & OFPFW_NW_DST_MASK) {
- m->nw_dst &= ofputil_wcbits_to_netmask(wc >> OFPFW_NW_DST_SHIFT);
- }
- m->tp_src = m->tp_dst = m->nw_tos = 0;
- } else if (m->dl_type == htons(ETH_TYPE_IPV6)) {
- /* Don't normalize IPv6 traffic, since OpenFlow doesn't have a
- * way to express it. */
+ wc |= htonl(OFPFW_TP);
} else {
- /* Network and transport layer fields will always be extracted as
- * zeros, so we can do an exact-match on those values. */
- wc &= ~(OFPFW_NW | OFPFW_TP);
- m->nw_proto = m->nw_src = m->nw_dst = m->nw_tos = 0;
- m->tp_src = m->tp_dst = 0;
- }
- if (wc & OFPFW_DL_SRC) {
- memset(m->dl_src, 0, sizeof m->dl_src);
+ wc |= htonl(OFPFW_NW | OFPFW_TP);
}
- if (wc & OFPFW_DL_DST) {
- memset(m->dl_dst, 0, sizeof m->dl_dst);
- }
- m->wildcards = htonl(wc);
-}
-
-/* Returns a string that describes 'match' in a very literal way, without
- * interpreting its contents except in a very basic fashion. The returned
- * string is intended to be fixed-length, so that it is easy to see differences
- * between two such strings if one is put above another. This is useful for
- * describing changes made by normalize_match().
- *
- * The caller must free the returned string (with free()). */
-char *
-ofp_match_to_literal_string(const struct ofp_match *match)
-{
- return xasprintf("wildcards=%#10"PRIx32" "
- " in_port=%5"PRId16" "
- " dl_src="ETH_ADDR_FMT" "
- " dl_dst="ETH_ADDR_FMT" "
- " dl_vlan=%5"PRId16" "
- " dl_vlan_pcp=%3"PRId8" "
- " dl_type=%#6"PRIx16" "
- " nw_tos=%#4"PRIx8" "
- " nw_proto=%#4"PRIx16" "
- " nw_src=%#10"PRIx32" "
- " nw_dst=%#10"PRIx32" "
- " tp_src=%5"PRId16" "
- " tp_dst=%5"PRId16,
- ntohl(match->wildcards),
- ntohs(match->in_port),
- ETH_ADDR_ARGS(match->dl_src),
- ETH_ADDR_ARGS(match->dl_dst),
- ntohs(match->dl_vlan),
- match->dl_vlan_pcp,
- ntohs(match->dl_type),
- match->nw_tos,
- match->nw_proto,
- ntohl(match->nw_src),
- ntohl(match->nw_dst),
- ntohs(match->tp_src),
- ntohs(match->tp_dst));
+ return wc;
}
static uint32_t
git://git.onelab.eu / sliver-openvswitch.git / blobdiff