/*
- * Copyright (c) 2010, 2011, 2012, 2013 Nicira, Inc.
+ * Copyright (c) 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include "openflow/openflow.h"
#include "ovs-thread.h"
#include "packets.h"
+#include "simap.h"
#include "socket-util.h"
#include "vconn.h"
-#include "vlog.h"
-
-VLOG_DEFINE_THIS_MODULE(ofp_parse);
/* Parses 'str' as an 8-bit unsigned integer into '*valuep'.
*
*
* Returns NULL if successful, otherwise a malloc()'d string describing the
* error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
+char * WARN_UNUSED_RESULT
str_to_u8(const char *str, const char *name, uint8_t *valuep)
{
int value;
*
* Returns NULL if successful, otherwise a malloc()'d string describing the
* error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
+char * WARN_UNUSED_RESULT
str_to_u16(const char *str, const char *name, uint16_t *valuep)
{
int value;
*
* Returns NULL if successful, otherwise a malloc()'d string describing the
* error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
+char * WARN_UNUSED_RESULT
str_to_u32(const char *str, uint32_t *valuep)
{
char *tail;
*
* Returns NULL if successful, otherwise a malloc()'d string describing the
* error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
+char * WARN_UNUSED_RESULT
str_to_u64(const char *str, uint64_t *valuep)
{
char *tail;
/* Parses 'str' as an 64-bit unsigned integer in network byte order into
* '*valuep'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-str_to_be64(const char *str, ovs_be64 *valuep)
-{
- uint64_t value;
- char *error;
-
- error = str_to_u64(str, &value);
- if (!error) {
- *valuep = htonll(value);
- }
- return error;
-}
-
-/* Parses 'str' as an Ethernet address into 'mac'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-str_to_mac(const char *str, uint8_t mac[6])
-{
- if (sscanf(str, ETH_ADDR_SCAN_FMT, ETH_ADDR_SCAN_ARGS(mac))
- != ETH_ADDR_SCAN_COUNT) {
- return xasprintf("invalid mac address %s", str);
- }
- return NULL;
-}
-
-/* Parses 'str' as an IP address into '*ip'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-str_to_ip(const char *str, ovs_be32 *ip)
-{
- struct in_addr in_addr;
-
- if (lookup_ip(str, &in_addr)) {
- return xasprintf("%s: could not convert to IP address", str);
- }
- *ip = in_addr.s_addr;
- return NULL;
-}
-
-/* Parses 'arg' as the argument to an "enqueue" action, and appends such an
- * action to 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-parse_enqueue(char *arg, struct ofpbuf *ofpacts)
-{
- char *sp = NULL;
- char *port = strtok_r(arg, ":q", &sp);
- char *queue = strtok_r(NULL, "", &sp);
- struct ofpact_enqueue *enqueue;
-
- if (port == NULL || queue == NULL) {
- return xstrdup("\"enqueue\" syntax is \"enqueue:PORT:QUEUE\"");
- }
-
- enqueue = ofpact_put_ENQUEUE(ofpacts);
- if (!ofputil_port_from_string(port, &enqueue->port)) {
- return xasprintf("%s: enqueue to unknown port", port);
- }
- return str_to_u32(queue, &enqueue->queue);
-}
-
-/* Parses 'arg' as the argument to an "output" action, and appends such an
- * action to 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-parse_output(const char *arg, struct ofpbuf *ofpacts)
-{
- if (strchr(arg, '[')) {
- struct ofpact_output_reg *output_reg;
-
- output_reg = ofpact_put_OUTPUT_REG(ofpacts);
- output_reg->max_len = UINT16_MAX;
- return mf_parse_subfield(&output_reg->src, arg);
- } else {
- struct ofpact_output *output;
-
- output = ofpact_put_OUTPUT(ofpacts);
- output->max_len = output->port == OFPP_CONTROLLER ? UINT16_MAX : 0;
- if (!ofputil_port_from_string(arg, &output->port)) {
- return xasprintf("%s: output to unknown port", arg);
- }
- return NULL;
- }
-}
-
-/* Parses 'arg' as the argument to an "resubmit" action, and appends such an
- * action to 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-parse_resubmit(char *arg, struct ofpbuf *ofpacts)
-{
- struct ofpact_resubmit *resubmit;
- char *in_port_s, *table_s;
-
- resubmit = ofpact_put_RESUBMIT(ofpacts);
-
- in_port_s = strsep(&arg, ",");
- if (in_port_s && in_port_s[0]) {
- if (!ofputil_port_from_string(in_port_s, &resubmit->in_port)) {
- return xasprintf("%s: resubmit to unknown port", in_port_s);
- }
- } else {
- resubmit->in_port = OFPP_IN_PORT;
- }
-
- table_s = strsep(&arg, ",");
- if (table_s && table_s[0]) {
- uint32_t table_id;
- char *error;
-
- error = str_to_u32(table_s, &table_id);
- if (error) {
- return error;
- }
- resubmit->table_id = table_id;
- } else {
- resubmit->table_id = 255;
- }
-
- if (resubmit->in_port == OFPP_IN_PORT && resubmit->table_id == 255) {
- return xstrdup("at least one \"in_port\" or \"table\" must be "
- "specified on resubmit");
- }
- return NULL;
-}
-
-/* Parses 'arg' as the argument to a "note" action, and appends such an action
- * to 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-parse_note(const char *arg, struct ofpbuf *ofpacts)
-{
- struct ofpact_note *note;
-
- note = ofpact_put_NOTE(ofpacts);
- while (*arg != '\0') {
- uint8_t byte;
- bool ok;
-
- if (*arg == '.') {
- arg++;
- }
- if (*arg == '\0') {
- break;
- }
-
- byte = hexits_value(arg, 2, &ok);
- if (!ok) {
- return xstrdup("bad hex digit in `note' argument");
- }
- ofpbuf_put(ofpacts, &byte, 1);
-
- note = ofpacts->l2;
- note->length++;
-
- arg += 2;
- }
- ofpact_update_len(ofpacts, ¬e->ofpact);
- return NULL;
-}
-
-/* Parses 'arg' as the argument to a "fin_timeout" action, and appends such an
- * action to 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-parse_fin_timeout(struct ofpbuf *b, char *arg)
-{
- struct ofpact_fin_timeout *oft = ofpact_put_FIN_TIMEOUT(b);
- char *key, *value;
-
- while (ofputil_parse_key_value(&arg, &key, &value)) {
- char *error;
-
- if (!strcmp(key, "idle_timeout")) {
- error = str_to_u16(value, key, &oft->fin_idle_timeout);
- } else if (!strcmp(key, "hard_timeout")) {
- error = str_to_u16(value, key, &oft->fin_hard_timeout);
- } else {
- error = xasprintf("invalid key '%s' in 'fin_timeout' argument",
- key);
- }
-
- if (error) {
- return error;
- }
- }
- return NULL;
-}
-
-/* Parses 'arg' as the argument to a "controller" action, and appends such an
- * action to 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-parse_controller(struct ofpbuf *b, char *arg)
-{
- enum ofp_packet_in_reason reason = OFPR_ACTION;
- uint16_t controller_id = 0;
- uint16_t max_len = UINT16_MAX;
-
- if (!arg[0]) {
- /* Use defaults. */
- } else if (strspn(arg, "0123456789") == strlen(arg)) {
- char *error = str_to_u16(arg, "max_len", &max_len);
- if (error) {
- return error;
- }
- } else {
- char *name, *value;
-
- while (ofputil_parse_key_value(&arg, &name, &value)) {
- if (!strcmp(name, "reason")) {
- if (!ofputil_packet_in_reason_from_string(value, &reason)) {
- return xasprintf("unknown reason \"%s\"", value);
- }
- } else if (!strcmp(name, "max_len")) {
- char *error = str_to_u16(value, "max_len", &max_len);
- if (error) {
- return error;
- }
- } else if (!strcmp(name, "id")) {
- char *error = str_to_u16(value, "id", &controller_id);
- if (error) {
- return error;
- }
- } else {
- return xasprintf("unknown key \"%s\" parsing controller "
- "action", name);
- }
- }
- }
-
- if (reason == OFPR_ACTION && controller_id == 0) {
- struct ofpact_output *output;
-
- output = ofpact_put_OUTPUT(b);
- output->port = OFPP_CONTROLLER;
- output->max_len = max_len;
- } else {
- struct ofpact_controller *controller;
-
- controller = ofpact_put_CONTROLLER(b);
- controller->max_len = max_len;
- controller->reason = reason;
- controller->controller_id = controller_id;
- }
-
- return NULL;
-}
-
-static void
-parse_noargs_dec_ttl(struct ofpbuf *b)
-{
- struct ofpact_cnt_ids *ids;
- uint16_t id = 0;
-
- ids = ofpact_put_DEC_TTL(b);
- ofpbuf_put(b, &id, sizeof id);
- ids = b->l2;
- ids->n_controllers++;
- ofpact_update_len(b, &ids->ofpact);
-}
-
-/* Parses 'arg' as the argument to a "dec_ttl" action, and appends such an
- * action to 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-parse_dec_ttl(struct ofpbuf *b, char *arg)
-{
- if (*arg == '\0') {
- parse_noargs_dec_ttl(b);
- } else {
- struct ofpact_cnt_ids *ids;
- char *cntr;
-
- ids = ofpact_put_DEC_TTL(b);
- ids->ofpact.compat = OFPUTIL_NXAST_DEC_TTL_CNT_IDS;
- for (cntr = strtok_r(arg, ", ", &arg); cntr != NULL;
- cntr = strtok_r(NULL, ", ", &arg)) {
- uint16_t id = atoi(cntr);
-
- ofpbuf_put(b, &id, sizeof id);
- ids = b->l2;
- ids->n_controllers++;
- }
- if (!ids->n_controllers) {
- return xstrdup("dec_ttl_cnt_ids: expected at least one controller "
- "id.");
- }
- ofpact_update_len(b, &ids->ofpact);
- }
- return NULL;
-}
-
-/* Parses 'arg' as the argument to a "set_mpls_ttl" action, and appends such an
- * action to 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-parse_set_mpls_ttl(struct ofpbuf *b, const char *arg)
-{
- struct ofpact_mpls_ttl *mpls_ttl = ofpact_put_SET_MPLS_TTL(b);
-
- if (*arg == '\0') {
- return xstrdup("parse_set_mpls_ttl: expected ttl.");
- }
-
- mpls_ttl->ttl = atoi(arg);
- return NULL;
-}
-
-/* Parses a "set_field" action with argument 'arg', appending the parsed
- * action to 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-set_field_parse__(char *arg, struct ofpbuf *ofpacts)
-{
- struct ofpact_reg_load *load = ofpact_put_REG_LOAD(ofpacts);
- char *value;
- char *delim;
- char *key;
- const struct mf_field *mf;
- char *error;
- union mf_value mf_value;
-
- value = arg;
- delim = strstr(arg, "->");
- if (!delim) {
- return xasprintf("%s: missing `->'", arg);
- }
- if (strlen(delim) <= strlen("->")) {
- return xasprintf("%s: missing field name following `->'", arg);
- }
-
- key = delim + strlen("->");
- mf = mf_from_name(key);
- if (!mf) {
- return xasprintf("%s is not a valid OXM field name", key);
- }
- if (!mf->writable) {
- return xasprintf("%s is read-only", key);
- }
-
- delim[0] = '\0';
- error = mf_parse_value(mf, value, &mf_value);
- if (error) {
- return error;
- }
- if (!mf_is_value_valid(mf, &mf_value)) {
- return xasprintf("%s is not a valid value for field %s", value, key);
- }
- ofpact_set_field_init(load, mf, &mf_value);
-
- return NULL;
-}
-
-/* Parses 'arg' as the argument to a "set_field" action, and appends such an
- * action to 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-set_field_parse(const char *arg, struct ofpbuf *ofpacts)
-{
- char *copy = xstrdup(arg);
- char *error = set_field_parse__(copy, ofpacts);
- free(copy);
- return error;
-}
-
-/* Parses 'arg' as the argument to a "write_metadata" instruction, and appends
- * such an action to 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-parse_metadata(struct ofpbuf *b, char *arg)
-{
- struct ofpact_metadata *om;
- char *mask = strchr(arg, '/');
-
- om = ofpact_put_WRITE_METADATA(b);
-
- if (mask) {
- char *error;
-
- *mask = '\0';
- error = str_to_be64(mask + 1, &om->mask);
- if (error) {
- return error;
- }
- } else {
- om->mask = htonll(UINT64_MAX);
- }
-
- return str_to_be64(arg, &om->metadata);
-}
-
-/* Parses 'arg' as the argument to a "sample" action, and appends such an
- * action to 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-parse_sample(struct ofpbuf *b, char *arg)
-{
- struct ofpact_sample *os = ofpact_put_SAMPLE(b);
- char *key, *value;
-
- while (ofputil_parse_key_value(&arg, &key, &value)) {
- char *error = NULL;
-
- if (!strcmp(key, "probability")) {
- error = str_to_u16(value, "probability", &os->probability);
- if (!error && os->probability == 0) {
- error = xasprintf("invalid probability value \"%s\"", value);
- }
- } else if (!strcmp(key, "collector_set_id")) {
- error = str_to_u32(value, &os->collector_set_id);
- } else if (!strcmp(key, "obs_domain_id")) {
- error = str_to_u32(value, &os->obs_domain_id);
- } else if (!strcmp(key, "obs_point_id")) {
- error = str_to_u32(value, &os->obs_point_id);
- } else {
- error = xasprintf("invalid key \"%s\" in \"sample\" argument",
- key);
- }
- if (error) {
- return error;
- }
- }
- if (os->probability == 0) {
- return xstrdup("non-zero \"probability\" must be specified on sample");
- }
- return NULL;
-}
-
-/* Parses 'arg' as the argument to action 'code', and appends such an action to
- * 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-parse_named_action(enum ofputil_action_code code,
- char *arg, struct ofpbuf *ofpacts)
-{
- size_t orig_size = ofpacts->size;
- struct ofpact_tunnel *tunnel;
- char *error = NULL;
- uint16_t ethertype;
- uint16_t vid;
- uint8_t pcp;
- uint8_t tos;
-
- switch (code) {
- case OFPUTIL_ACTION_INVALID:
- NOT_REACHED();
-
- case OFPUTIL_OFPAT10_OUTPUT:
- case OFPUTIL_OFPAT11_OUTPUT:
- error = parse_output(arg, ofpacts);
- break;
-
- case OFPUTIL_OFPAT10_SET_VLAN_VID:
- case OFPUTIL_OFPAT11_SET_VLAN_VID:
- error = str_to_u16(arg, "VLAN VID", &vid);
- if (error) {
- return error;
- }
-
- if (vid & ~VLAN_VID_MASK) {
- return xasprintf("%s: not a valid VLAN VID", arg);
- }
- ofpact_put_SET_VLAN_VID(ofpacts)->vlan_vid = vid;
- break;
-
- case OFPUTIL_OFPAT10_SET_VLAN_PCP:
- case OFPUTIL_OFPAT11_SET_VLAN_PCP:
- error = str_to_u8(arg, "VLAN PCP", &pcp);
- if (error) {
- return error;
- }
-
- if (pcp & ~7) {
- return xasprintf("%s: not a valid VLAN PCP", arg);
- }
- ofpact_put_SET_VLAN_PCP(ofpacts)->vlan_pcp = pcp;
- break;
-
- case OFPUTIL_OFPAT12_SET_FIELD:
- return set_field_parse(arg, ofpacts);
-
- case OFPUTIL_OFPAT10_STRIP_VLAN:
- case OFPUTIL_OFPAT11_POP_VLAN:
- ofpact_put_STRIP_VLAN(ofpacts);
- break;
-
- case OFPUTIL_OFPAT11_PUSH_VLAN:
- error = str_to_u16(arg, "ethertype", ðertype);
- if (error) {
- return error;
- }
-
- if (ethertype != ETH_TYPE_VLAN_8021Q) {
- /* XXX ETH_TYPE_VLAN_8021AD case isn't supported */
- return xasprintf("%s: not a valid VLAN ethertype", arg);
- }
-
- ofpact_put_PUSH_VLAN(ofpacts);
- break;
-
- case OFPUTIL_OFPAT11_SET_QUEUE:
- error = str_to_u32(arg, &ofpact_put_SET_QUEUE(ofpacts)->queue_id);
- break;
-
- case OFPUTIL_OFPAT10_SET_DL_SRC:
- case OFPUTIL_OFPAT11_SET_DL_SRC:
- error = str_to_mac(arg, ofpact_put_SET_ETH_SRC(ofpacts)->mac);
- break;
-
- case OFPUTIL_OFPAT10_SET_DL_DST:
- case OFPUTIL_OFPAT11_SET_DL_DST:
- error = str_to_mac(arg, ofpact_put_SET_ETH_DST(ofpacts)->mac);
- break;
-
- case OFPUTIL_OFPAT10_SET_NW_SRC:
- case OFPUTIL_OFPAT11_SET_NW_SRC:
- error = str_to_ip(arg, &ofpact_put_SET_IPV4_SRC(ofpacts)->ipv4);
- break;
-
- case OFPUTIL_OFPAT10_SET_NW_DST:
- case OFPUTIL_OFPAT11_SET_NW_DST:
- error = str_to_ip(arg, &ofpact_put_SET_IPV4_DST(ofpacts)->ipv4);
- break;
-
- case OFPUTIL_OFPAT10_SET_NW_TOS:
- case OFPUTIL_OFPAT11_SET_NW_TOS:
- error = str_to_u8(arg, "TOS", &tos);
- if (error) {
- return error;
- }
-
- if (tos & ~IP_DSCP_MASK) {
- return xasprintf("%s: not a valid TOS", arg);
- }
- ofpact_put_SET_IPV4_DSCP(ofpacts)->dscp = tos;
- break;
-
- case OFPUTIL_OFPAT11_DEC_NW_TTL:
- NOT_REACHED();
-
- case OFPUTIL_OFPAT10_SET_TP_SRC:
- case OFPUTIL_OFPAT11_SET_TP_SRC:
- error = str_to_u16(arg, "source port",
- &ofpact_put_SET_L4_SRC_PORT(ofpacts)->port);
- break;
-
- case OFPUTIL_OFPAT10_SET_TP_DST:
- case OFPUTIL_OFPAT11_SET_TP_DST:
- error = str_to_u16(arg, "destination port",
- &ofpact_put_SET_L4_DST_PORT(ofpacts)->port);
- break;
-
- case OFPUTIL_OFPAT10_ENQUEUE:
- error = parse_enqueue(arg, ofpacts);
- break;
-
- case OFPUTIL_NXAST_RESUBMIT:
- error = parse_resubmit(arg, ofpacts);
- break;
-
- case OFPUTIL_NXAST_SET_TUNNEL:
- case OFPUTIL_NXAST_SET_TUNNEL64:
- tunnel = ofpact_put_SET_TUNNEL(ofpacts);
- tunnel->ofpact.compat = code;
- error = str_to_u64(arg, &tunnel->tun_id);
- break;
-
- case OFPUTIL_NXAST_WRITE_METADATA:
- error = parse_metadata(ofpacts, arg);
- break;
-
- case OFPUTIL_NXAST_SET_QUEUE:
- error = str_to_u32(arg, &ofpact_put_SET_QUEUE(ofpacts)->queue_id);
- break;
-
- case OFPUTIL_NXAST_POP_QUEUE:
- ofpact_put_POP_QUEUE(ofpacts);
- break;
-
- case OFPUTIL_NXAST_REG_MOVE:
- error = nxm_parse_reg_move(ofpact_put_REG_MOVE(ofpacts), arg);
- break;
-
- case OFPUTIL_NXAST_REG_LOAD:
- error = nxm_parse_reg_load(ofpact_put_REG_LOAD(ofpacts), arg);
- break;
-
- case OFPUTIL_NXAST_NOTE:
- error = parse_note(arg, ofpacts);
- break;
-
- case OFPUTIL_NXAST_MULTIPATH:
- error = multipath_parse(ofpact_put_MULTIPATH(ofpacts), arg);
- break;
-
- case OFPUTIL_NXAST_BUNDLE:
- error = bundle_parse(arg, ofpacts);
- break;
-
- case OFPUTIL_NXAST_BUNDLE_LOAD:
- error = bundle_parse_load(arg, ofpacts);
- break;
-
- case OFPUTIL_NXAST_RESUBMIT_TABLE:
- case OFPUTIL_NXAST_OUTPUT_REG:
- case OFPUTIL_NXAST_DEC_TTL_CNT_IDS:
- NOT_REACHED();
-
- case OFPUTIL_NXAST_LEARN:
- error = learn_parse(arg, ofpacts);
- break;
-
- case OFPUTIL_NXAST_EXIT:
- ofpact_put_EXIT(ofpacts);
- break;
-
- case OFPUTIL_NXAST_DEC_TTL:
- error = parse_dec_ttl(ofpacts, arg);
- break;
-
- case OFPUTIL_NXAST_SET_MPLS_TTL:
- case OFPUTIL_OFPAT11_SET_MPLS_TTL:
- error = parse_set_mpls_ttl(ofpacts, arg);
- break;
-
- case OFPUTIL_OFPAT11_DEC_MPLS_TTL:
- case OFPUTIL_NXAST_DEC_MPLS_TTL:
- ofpact_put_DEC_MPLS_TTL(ofpacts);
- break;
-
- case OFPUTIL_NXAST_FIN_TIMEOUT:
- error = parse_fin_timeout(ofpacts, arg);
- break;
-
- case OFPUTIL_NXAST_CONTROLLER:
- error = parse_controller(ofpacts, arg);
- break;
-
- case OFPUTIL_OFPAT11_PUSH_MPLS:
- case OFPUTIL_NXAST_PUSH_MPLS:
- error = str_to_u16(arg, "push_mpls", ðertype);
- if (!error) {
- ofpact_put_PUSH_MPLS(ofpacts)->ethertype = htons(ethertype);
- }
- break;
-
- case OFPUTIL_OFPAT11_POP_MPLS:
- case OFPUTIL_NXAST_POP_MPLS:
- error = str_to_u16(arg, "pop_mpls", ðertype);
- if (!error) {
- ofpact_put_POP_MPLS(ofpacts)->ethertype = htons(ethertype);
- }
- break;
-
- case OFPUTIL_NXAST_STACK_PUSH:
- error = nxm_parse_stack_action(ofpact_put_STACK_PUSH(ofpacts), arg);
- break;
- case OFPUTIL_NXAST_STACK_POP:
- error = nxm_parse_stack_action(ofpact_put_STACK_POP(ofpacts), arg);
- break;
-
- case OFPUTIL_NXAST_SAMPLE:
- error = parse_sample(ofpacts, arg);
- break;
- }
-
- if (error) {
- ofpacts->size = orig_size;
- }
- return error;
-}
-
-/* Parses action 'act', with argument 'arg', and appends a parsed version to
- * 'ofpacts'.
- *
- * 'n_actions' specifies the number of actions already parsed (for proper
- * handling of "drop" actions).
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-str_to_ofpact__(char *pos, char *act, char *arg,
- struct ofpbuf *ofpacts, int n_actions)
-{
- int code = ofputil_action_code_from_name(act);
- if (code >= 0) {
- return parse_named_action(code, arg, ofpacts);
- } else if (!strcasecmp(act, "drop")) {
- if (n_actions) {
- return xstrdup("Drop actions must not be preceded by other "
- "actions");
- } else if (ofputil_parse_key_value(&pos, &act, &arg)) {
- return xstrdup("Drop actions must not be followed by other "
- "actions");
- }
- } else {
- ofp_port_t port;
- if (ofputil_port_from_string(act, &port)) {
- ofpact_put_OUTPUT(ofpacts)->port = port;
- } else {
- return xasprintf("Unknown action: %s", act);
- }
- }
-
- return NULL;
-}
-
-/* Parses 'str' as a series of actions, and appends them to 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-str_to_ofpacts(char *str, struct ofpbuf *ofpacts)
-{
- size_t orig_size = ofpacts->size;
- char *pos, *act, *arg;
- enum ofperr error;
- int n_actions;
-
- pos = str;
- n_actions = 0;
- while (ofputil_parse_key_value(&pos, &act, &arg)) {
- char *error = str_to_ofpact__(pos, act, arg, ofpacts, n_actions);
- if (error) {
- ofpacts->size = orig_size;
- return error;
- }
- n_actions++;
- }
-
- error = ofpacts_verify(ofpacts->data, ofpacts->size);
- if (error) {
- ofpacts->size = orig_size;
- return xstrdup("Incorrect action ordering");
- }
-
- ofpact_pad(ofpacts);
- return NULL;
-}
-
-/* Parses 'arg' as the argument to instruction 'type', and appends such an
- * instruction to 'ofpacts'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-parse_named_instruction(enum ovs_instruction_type type,
- char *arg, struct ofpbuf *ofpacts)
-{
- char *error_s = NULL;
- enum ofperr error;
-
- switch (type) {
- case OVSINST_OFPIT11_APPLY_ACTIONS:
- NOT_REACHED(); /* This case is handled by str_to_inst_ofpacts() */
- break;
-
- case OVSINST_OFPIT11_WRITE_ACTIONS:
- /* XXX */
- error_s = xstrdup("instruction write-actions is not supported yet");
- break;
-
- case OVSINST_OFPIT11_CLEAR_ACTIONS:
- ofpact_put_CLEAR_ACTIONS(ofpacts);
- break;
-
- case OVSINST_OFPIT13_METER:
- error_s = str_to_u32(arg, &ofpact_put_METER(ofpacts)->meter_id);
- break;
-
- case OVSINST_OFPIT11_WRITE_METADATA:
- error_s = parse_metadata(ofpacts, arg);
- break;
-
- case OVSINST_OFPIT11_GOTO_TABLE: {
- struct ofpact_goto_table *ogt = ofpact_put_GOTO_TABLE(ofpacts);
- char *table_s = strsep(&arg, ",");
- if (!table_s || !table_s[0]) {
- return xstrdup("instruction goto-table needs table id");
- }
- error_s = str_to_u8(table_s, "table", &ogt->table_id);
- break;
- }
- }
+ *
+ * Returns NULL if successful, otherwise a malloc()'d string describing the
+ * error. The caller is responsible for freeing the returned string. */
+char * WARN_UNUSED_RESULT
+str_to_be64(const char *str, ovs_be64 *valuep)
+{
+ uint64_t value = 0;
+ char *error;
- if (error_s) {
- return error_s;
+ error = str_to_u64(str, &value);
+ if (!error) {
+ *valuep = htonll(value);
}
+ return error;
+}
- /* If write_metadata is specified as an action AND an instruction, ofpacts
- could be invalid. */
- error = ofpacts_verify(ofpacts->data, ofpacts->size);
- if (error) {
- return xstrdup("Incorrect instruction ordering");
+/* Parses 'str' as an Ethernet address into 'mac'.
+ *
+ * Returns NULL if successful, otherwise a malloc()'d string describing the
+ * error. The caller is responsible for freeing the returned string. */
+char * WARN_UNUSED_RESULT
+str_to_mac(const char *str, uint8_t mac[6])
+{
+ if (!ovs_scan(str, ETH_ADDR_SCAN_FMT, ETH_ADDR_SCAN_ARGS(mac))) {
+ return xasprintf("invalid mac address %s", str);
}
return NULL;
}
-/* Parses 'str' as a series of instructions, and appends them to 'ofpacts'.
+/* Parses 'str' as an IP address into '*ip'.
*
* Returns NULL if successful, otherwise a malloc()'d string describing the
* error. The caller is responsible for freeing the returned string. */
-static char * WARN_UNUSED_RESULT
-str_to_inst_ofpacts(char *str, struct ofpbuf *ofpacts)
+char * WARN_UNUSED_RESULT
+str_to_ip(const char *str, ovs_be32 *ip)
{
- size_t orig_size = ofpacts->size;
- char *pos, *inst, *arg;
- int type;
- const char *prev_inst = NULL;
- int prev_type = -1;
- int n_actions = 0;
-
- pos = str;
- while (ofputil_parse_key_value(&pos, &inst, &arg)) {
- type = ovs_instruction_type_from_name(inst);
- if (type < 0) {
- char *error = str_to_ofpact__(pos, inst, arg, ofpacts, n_actions);
- if (error) {
- ofpacts->size = orig_size;
- return error;
- }
-
- type = OVSINST_OFPIT11_APPLY_ACTIONS;
- if (prev_type == type) {
- n_actions++;
- continue;
- }
- } else if (type == OVSINST_OFPIT11_APPLY_ACTIONS) {
- ofpacts->size = orig_size;
- return xasprintf("%s isn't supported. Just write actions then "
- "it is interpreted as apply_actions", inst);
- } else {
- char *error = parse_named_instruction(type, arg, ofpacts);
- if (error) {
- ofpacts->size = orig_size;
- return error;
- }
- }
-
- if (type <= prev_type) {
- ofpacts->size = orig_size;
- if (type == prev_type) {
- return xasprintf("instruction %s may be specified only once",
- inst);
- } else {
- return xasprintf("instruction %s must be specified before %s",
- inst, prev_inst);
- }
- }
+ struct in_addr in_addr;
- prev_inst = inst;
- prev_type = type;
- n_actions++;
+ if (lookup_ip(str, &in_addr)) {
+ return xasprintf("%s: could not convert to IP address", str);
}
- ofpact_pad(ofpacts);
-
+ *ip = in_addr.s_addr;
return NULL;
}
{ "icmp", ETH_TYPE_IP, IPPROTO_ICMP },
{ "tcp", ETH_TYPE_IP, IPPROTO_TCP },
{ "udp", ETH_TYPE_IP, IPPROTO_UDP },
+ { "sctp", ETH_TYPE_IP, IPPROTO_SCTP },
{ "ipv6", ETH_TYPE_IPV6, 0 },
{ "ip6", ETH_TYPE_IPV6, 0 },
{ "icmp6", ETH_TYPE_IPV6, IPPROTO_ICMPV6 },
{ "tcp6", ETH_TYPE_IPV6, IPPROTO_TCP },
{ "udp6", ETH_TYPE_IPV6, IPPROTO_UDP },
+ { "sctp6", ETH_TYPE_IPV6, IPPROTO_SCTP },
{ "rarp", ETH_TYPE_RARP, 0},
{ "mpls", ETH_TYPE_MPLS, 0 },
{ "mplsm", ETH_TYPE_MPLS_MCAST, 0 },
}
/* Parses 's' as the (possibly masked) value of field 'mf', and updates
- * 'match' appropriately.
+ * 'match' appropriately. Restricts the set of usable protocols to ones
+ * supporting the parsed field.
*
* Returns NULL if successful, otherwise a malloc()'d string describing the
* error. The caller is responsible for freeing the returned string. */
static char * WARN_UNUSED_RESULT
-parse_field(const struct mf_field *mf, const char *s, struct match *match)
+parse_field(const struct mf_field *mf, const char *s, struct match *match,
+ enum ofputil_protocol *usable_protocols)
{
union mf_value value, mask;
char *error;
error = mf_parse(mf, s, &value, &mask);
if (!error) {
- mf_set(mf, &value, &mask, match);
+ *usable_protocols &= mf_set(mf, &value, &mask, match);
}
return error;
}
+static char *
+extract_actions(char *s)
+{
+ s = strstr(s, "action");
+ if (s) {
+ *s = '\0';
+ s = strchr(s + 1, '=');
+ return s ? s + 1 : NULL;
+ } else {
+ return NULL;
+ }
+}
+
+
static char * WARN_UNUSED_RESULT
-parse_ofp_str__(struct ofputil_flow_mod *fm, int command, char *string)
+parse_ofp_str__(struct ofputil_flow_mod *fm, int command, char *string,
+ enum ofputil_protocol *usable_protocols)
{
enum {
F_OUT_PORT = 1 << 0,
char *act_str = NULL;
char *name;
+ *usable_protocols = OFPUTIL_P_ANY;
+
switch (command) {
case -1:
fields = F_OUT_PORT;
break;
default:
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
match_init_catchall(&fm->match);
fm->cookie_mask = htonll(0);
if (command == OFPFC_MODIFY || command == OFPFC_MODIFY_STRICT) {
/* For modify, by default, don't update the cookie. */
- fm->new_cookie = htonll(UINT64_MAX);
+ fm->new_cookie = OVS_BE64_MAX;
} else{
fm->new_cookie = htonll(0);
}
fm->buffer_id = UINT32_MAX;
fm->out_port = OFPP_ANY;
fm->flags = 0;
+ fm->out_group = OFPG11_ANY;
+ fm->delete_reason = OFPRR_DELETE;
if (fields & F_ACTIONS) {
- act_str = strstr(string, "action");
- if (!act_str) {
- return xstrdup("must specify an action");
- }
- *act_str = '\0';
-
- act_str = strchr(act_str + 1, '=');
+ act_str = extract_actions(string);
if (!act_str) {
return xstrdup("must specify an action");
}
-
- act_str++;
}
for (name = strtok_r(string, "=, \t\r\n", &save_ptr); name;
name = strtok_r(NULL, "=, \t\r\n", &save_ptr)) {
match_set_nw_proto(&fm->match, p->nw_proto);
}
} else if (fields & F_FLAGS && !strcmp(name, "send_flow_rem")) {
- fm->flags |= OFPFF_SEND_FLOW_REM;
+ fm->flags |= OFPUTIL_FF_SEND_FLOW_REM;
} else if (fields & F_FLAGS && !strcmp(name, "check_overlap")) {
- fm->flags |= OFPFF_CHECK_OVERLAP;
+ fm->flags |= OFPUTIL_FF_CHECK_OVERLAP;
} else if (fields & F_FLAGS && !strcmp(name, "reset_counts")) {
- fm->flags |= OFPFF12_RESET_COUNTS;
+ fm->flags |= OFPUTIL_FF_RESET_COUNTS;
+ *usable_protocols &= OFPUTIL_P_OF12_UP;
} else if (fields & F_FLAGS && !strcmp(name, "no_packet_counts")) {
- fm->flags |= OFPFF13_NO_PKT_COUNTS;
+ fm->flags |= OFPUTIL_FF_NO_PKT_COUNTS;
+ *usable_protocols &= OFPUTIL_P_OF13_UP;
} else if (fields & F_FLAGS && !strcmp(name, "no_byte_counts")) {
- fm->flags |= OFPFF13_NO_BYT_COUNTS;
+ fm->flags |= OFPUTIL_FF_NO_BYT_COUNTS;
+ *usable_protocols &= OFPUTIL_P_OF13_UP;
+ } else if (!strcmp(name, "no_readonly_table")
+ || !strcmp(name, "allow_hidden_fields")) {
+ /* ignore these fields. */
} else {
char *value;
if (!strcmp(name, "table")) {
error = str_to_u8(value, "table", &fm->table_id);
+ if (fm->table_id != 0xff) {
+ *usable_protocols &= OFPUTIL_P_TID;
+ }
} else if (!strcmp(name, "out_port")) {
if (!ofputil_port_from_string(value, &fm->out_port)) {
error = xasprintf("%s is not a valid OpenFlow port",
value);
}
} else if (fields & F_PRIORITY && !strcmp(name, "priority")) {
- uint16_t priority;
+ uint16_t priority = 0;
error = str_to_u16(value, name, &priority);
fm->priority = priority;
return error;
}
error = str_to_be64(mask + 1, &fm->cookie_mask);
+
+ /* Matching of the cookie is only supported through NXM or
+ * OF1.1+. */
+ if (fm->cookie_mask != htonll(0)) {
+ *usable_protocols &= OFPUTIL_P_NXM_OF11_UP;
+ }
} else {
/* No mask means that the cookie is being set. */
if (command != OFPFC_ADD && command != OFPFC_MODIFY
fm->modify_cookie = true;
}
} else if (mf_from_name(name)) {
- error = parse_field(mf_from_name(name), value, &fm->match);
+ error = parse_field(mf_from_name(name), value, &fm->match,
+ usable_protocols);
} else if (!strcmp(name, "duration")
|| !strcmp(name, "n_packets")
|| !strcmp(name, "n_bytes")
}
}
}
- if (!fm->cookie_mask && fm->new_cookie == htonll(UINT64_MAX)
+ /* Check for usable protocol interdependencies between match fields. */
+ if (fm->match.flow.dl_type == htons(ETH_TYPE_IPV6)) {
+ const struct flow_wildcards *wc = &fm->match.wc;
+ /* Only NXM and OXM support matching L3 and L4 fields within IPv6.
+ *
+ * (IPv6 specific fields as well as arp_sha, arp_tha, nw_frag, and
+ * nw_ttl are covered elsewhere so they don't need to be included in
+ * this test too.)
+ */
+ if (wc->masks.nw_proto || wc->masks.nw_tos
+ || wc->masks.tp_src || wc->masks.tp_dst) {
+ *usable_protocols &= OFPUTIL_P_NXM_OXM_ANY;
+ }
+ }
+ if (!fm->cookie_mask && fm->new_cookie == OVS_BE64_MAX
&& (command == OFPFC_MODIFY || command == OFPFC_MODIFY_STRICT)) {
/* On modifies without a mask, we are supposed to add a flow if
* one does not exist. If a cookie wasn't been specified, use a
fm->new_cookie = htonll(0);
}
if (fields & F_ACTIONS) {
+ enum ofputil_protocol action_usable_protocols;
struct ofpbuf ofpacts;
char *error;
ofpbuf_init(&ofpacts, 32);
- error = str_to_inst_ofpacts(act_str, &ofpacts);
+ error = ofpacts_parse_instructions(act_str, &ofpacts,
+ &action_usable_protocols);
+ *usable_protocols &= action_usable_protocols;
if (!error) {
enum ofperr err;
- err = ofpacts_check(ofpacts.data, ofpacts.size, &fm->match.flow,
- OFPP_MAX, 0);
+ err = ofpacts_check(ofpbuf_data(&ofpacts), ofpbuf_size(&ofpacts), &fm->match.flow,
+ OFPP_MAX, fm->table_id, 255, usable_protocols);
+ if (!err && !usable_protocols) {
+ err = OFPERR_OFPBAC_MATCH_INCONSISTENT;
+ }
if (err) {
error = xasprintf("actions are invalid with specified match "
"(%s)", ofperr_to_string(err));
}
+
}
if (error) {
ofpbuf_uninit(&ofpacts);
return error;
}
- fm->ofpacts_len = ofpacts.size;
+ fm->ofpacts_len = ofpbuf_size(&ofpacts);
fm->ofpacts = ofpbuf_steal_data(&ofpacts);
} else {
fm->ofpacts_len = 0;
/* Convert 'str_' (as described in the Flow Syntax section of the ovs-ofctl man
* page) into 'fm' for sending the specified flow_mod 'command' to a switch.
+ * Returns the set of usable protocols in '*usable_protocols'.
*
* To parse syntax for an OFPT_FLOW_MOD (or NXT_FLOW_MOD), use an OFPFC_*
* constant for 'command'. To parse syntax for an OFPST_FLOW or
* Returns NULL if successful, otherwise a malloc()'d string describing the
* error. The caller is responsible for freeing the returned string. */
char * WARN_UNUSED_RESULT
-parse_ofp_str(struct ofputil_flow_mod *fm, int command, const char *str_)
+parse_ofp_str(struct ofputil_flow_mod *fm, int command, const char *str_,
+ enum ofputil_protocol *usable_protocols)
{
char *string = xstrdup(str_);
char *error;
- error = parse_ofp_str__(fm, command, string);
+ error = parse_ofp_str__(fm, command, string, usable_protocols);
if (error) {
fm->ofpacts = NULL;
fm->ofpacts_len = 0;
static char * WARN_UNUSED_RESULT
parse_ofp_meter_mod_str__(struct ofputil_meter_mod *mm, char *string,
- struct ofpbuf *bands, int command)
+ struct ofpbuf *bands, int command,
+ enum ofputil_protocol *usable_protocols)
{
enum {
F_METER = 1 << 0,
char *band_str = NULL;
char *name;
+ /* Meters require at least OF 1.3. */
+ *usable_protocols = OFPUTIL_P_OF13_UP;
+
switch (command) {
case -1:
fields = F_METER;
break;
default:
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
mm->command = command;
* error. The caller is responsible for freeing the returned string. */
char * WARN_UNUSED_RESULT
parse_ofp_meter_mod_str(struct ofputil_meter_mod *mm, const char *str_,
- int command)
+ int command, enum ofputil_protocol *usable_protocols)
{
struct ofpbuf bands;
char *string;
ofpbuf_init(&bands, 64);
string = xstrdup(str_);
- error = parse_ofp_meter_mod_str__(mm, string, &bands, command);
+ error = parse_ofp_meter_mod_str__(mm, string, &bands, command,
+ usable_protocols);
free(string);
ofpbuf_uninit(&bands);
static char * WARN_UNUSED_RESULT
parse_flow_monitor_request__(struct ofputil_flow_monitor_request *fmr,
- const char *str_, char *string)
+ const char *str_, char *string,
+ enum ofputil_protocol *usable_protocols)
{
- static pthread_mutex_t mutex = PTHREAD_ADAPTIVE_MUTEX_INITIALIZER;
- static uint32_t id;
-
+ static atomic_uint32_t id = ATOMIC_VAR_INIT(0);
char *save_ptr = NULL;
char *name;
- xpthread_mutex_lock(&mutex);
- fmr->id = id++;
- xpthread_mutex_unlock(&mutex);
+ atomic_add(&id, 1, &fmr->id);
fmr->flags = (NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY
| NXFMF_OWN | NXFMF_ACTIONS);
} else if (mf_from_name(name)) {
char *error;
- error = parse_field(mf_from_name(name), value, &fmr->match);
+ error = parse_field(mf_from_name(name), value, &fmr->match,
+ usable_protocols);
if (error) {
return error;
}
* error. The caller is responsible for freeing the returned string. */
char * WARN_UNUSED_RESULT
parse_flow_monitor_request(struct ofputil_flow_monitor_request *fmr,
- const char *str_)
+ const char *str_,
+ enum ofputil_protocol *usable_protocols)
{
char *string = xstrdup(str_);
- char *error = parse_flow_monitor_request__(fmr, str_, string);
+ char *error = parse_flow_monitor_request__(fmr, str_, string,
+ usable_protocols);
free(string);
return error;
}
-/* Parses 's' as a set of OpenFlow actions and appends the actions to
- * 'actions'.
- *
- * Returns NULL if successful, otherwise a malloc()'d string describing the
- * error. The caller is responsible for freeing the returned string. */
-char * WARN_UNUSED_RESULT
-parse_ofpacts(const char *s_, struct ofpbuf *ofpacts)
-{
- char *s = xstrdup(s_);
- char *error = str_to_ofpacts(s, ofpacts);
- free(s);
-
- return error;
-}
-
/* Parses 'string' as an OFPT_FLOW_MOD or NXT_FLOW_MOD with command 'command'
* (one of OFPFC_*) into 'fm'.
*
* error. The caller is responsible for freeing the returned string. */
char * WARN_UNUSED_RESULT
parse_ofp_flow_mod_str(struct ofputil_flow_mod *fm, const char *string,
- uint16_t command)
+ uint16_t command,
+ enum ofputil_protocol *usable_protocols)
{
- char *error = parse_ofp_str(fm, command, string);
+ char *error = parse_ofp_str(fm, command, string, usable_protocols);
if (!error) {
/* Normalize a copy of the match. This ensures that non-normalized
* flows get logged but doesn't affect what gets sent to the switch, so
return error;
}
+/* Convert 'table_id' and 'flow_miss_handling' (as described for the
+ * "mod-table" command in the ovs-ofctl man page) into 'tm' for sending the
+ * specified table_mod 'command' to a switch.
+ *
+ * Returns NULL if successful, otherwise a malloc()'d string describing the
+ * error. The caller is responsible for freeing the returned string. */
+char * WARN_UNUSED_RESULT
+parse_ofp_table_mod(struct ofputil_table_mod *tm, const char *table_id,
+ const char *flow_miss_handling,
+ enum ofputil_protocol *usable_protocols)
+{
+ /* Table mod requires at least OF 1.1. */
+ *usable_protocols = OFPUTIL_P_OF11_UP;
+
+ if (!strcasecmp(table_id, "all")) {
+ tm->table_id = OFPTT_ALL;
+ } else {
+ char *error = str_to_u8(table_id, "table_id", &tm->table_id);
+ if (error) {
+ return error;
+ }
+ }
+
+ if (strcmp(flow_miss_handling, "controller") == 0) {
+ tm->miss_config = OFPUTIL_TABLE_MISS_CONTROLLER;
+ } else if (strcmp(flow_miss_handling, "continue") == 0) {
+ tm->miss_config = OFPUTIL_TABLE_MISS_CONTINUE;
+ } else if (strcmp(flow_miss_handling, "drop") == 0) {
+ tm->miss_config = OFPUTIL_TABLE_MISS_DROP;
+ } else {
+ return xasprintf("invalid flow_miss_handling %s", flow_miss_handling);
+ }
+
+ if (tm->table_id == 0xfe
+ && tm->miss_config == OFPUTIL_TABLE_MISS_CONTINUE) {
+ return xstrdup("last table's flow miss handling can not be continue");
+ }
+
+ return NULL;
+}
+
+
/* Opens file 'file_name' and reads each line as a flow_mod of the specified
* type (one of OFPFC_*). Stores each flow_mod in '*fm', an array allocated
* on the caller's behalf, and the number of flow_mods in '*n_fms'.
* error. The caller is responsible for freeing the returned string. */
char * WARN_UNUSED_RESULT
parse_ofp_flow_mod_file(const char *file_name, uint16_t command,
- struct ofputil_flow_mod **fms, size_t *n_fms)
+ struct ofputil_flow_mod **fms, size_t *n_fms,
+ enum ofputil_protocol *usable_protocols)
{
size_t allocated_fms;
int line_number;
FILE *stream;
struct ds s;
+ *usable_protocols = OFPUTIL_P_ANY;
+
*fms = NULL;
*n_fms = 0;
line_number = 0;
while (!ds_get_preprocessed_line(&s, stream, &line_number)) {
char *error;
+ enum ofputil_protocol usable;
if (*n_fms >= allocated_fms) {
*fms = x2nrealloc(*fms, &allocated_fms, sizeof **fms);
}
- error = parse_ofp_flow_mod_str(&(*fms)[*n_fms], ds_cstr(&s), command);
+ error = parse_ofp_flow_mod_str(&(*fms)[*n_fms], ds_cstr(&s), command,
+ &usable);
if (error) {
size_t i;
for (i = 0; i < *n_fms; i++) {
- free((*fms)[i].ofpacts);
+ free(CONST_CAST(struct ofpact *, (*fms)[i].ofpacts));
}
free(*fms);
*fms = NULL;
return xasprintf("%s:%d: %s", file_name, line_number, error);
}
+ *usable_protocols &= usable; /* Each line can narrow the set. */
*n_fms += 1;
}
char * WARN_UNUSED_RESULT
parse_ofp_flow_stats_request_str(struct ofputil_flow_stats_request *fsr,
- bool aggregate, const char *string)
+ bool aggregate, const char *string,
+ enum ofputil_protocol *usable_protocols)
{
struct ofputil_flow_mod fm;
char *error;
- error = parse_ofp_str(&fm, -1, string);
+ error = parse_ofp_str(&fm, -1, string, usable_protocols);
if (error) {
return error;
}
+ /* Special table ID support not required for stats requests. */
+ if (*usable_protocols & OFPUTIL_P_OF10_STD_TID) {
+ *usable_protocols |= OFPUTIL_P_OF10_STD;
+ }
+ if (*usable_protocols & OFPUTIL_P_OF10_NXM_TID) {
+ *usable_protocols |= OFPUTIL_P_OF10_NXM;
+ }
+
fsr->aggregate = aggregate;
fsr->cookie = fm.cookie;
fsr->cookie_mask = fm.cookie_mask;
fsr->match = fm.match;
fsr->out_port = fm.out_port;
+ fsr->out_group = fm.out_group;
fsr->table_id = fm.table_id;
return NULL;
}
/* Parses a specification of a flow from 's' into 'flow'. 's' must take the
* form FIELD=VALUE[,FIELD=VALUE]... where each FIELD is the name of a
* mf_field. Fields must be specified in a natural order for satisfying
- * prerequisites.
+ * prerequisites. If 'mask' is specified, fills the mask field for each of the
+ * field specified in flow. If the map, 'names_portno' is specfied, converts
+ * the in_port name into port no while setting the 'flow'.
*
* Returns NULL on success, otherwise a malloc()'d string that explains the
* problem. */
char *
-parse_ofp_exact_flow(struct flow *flow, const char *s)
+parse_ofp_exact_flow(struct flow *flow, struct flow *mask, const char *s,
+ const struct simap *portno_names)
{
char *pos, *key, *value_s;
char *error = NULL;
char *copy;
memset(flow, 0, sizeof *flow);
+ if (mask) {
+ memset(mask, 0, sizeof *mask);
+ }
pos = copy = xstrdup(s);
while (ofputil_parse_key_value(&pos, &key, &value_s)) {
goto exit;
}
flow->dl_type = htons(p->dl_type);
+ if (mask) {
+ mask->dl_type = OVS_BE16_MAX;
+ }
if (p->nw_proto) {
if (flow->nw_proto) {
goto exit;
}
flow->nw_proto = p->nw_proto;
+ if (mask) {
+ mask->nw_proto = UINT8_MAX;
+ }
}
} else {
const struct mf_field *mf;
goto exit;
}
- field_error = mf_parse_value(mf, value_s, &value);
- if (field_error) {
- error = xasprintf("%s: bad value for %s (%s)",
- s, key, field_error);
- free(field_error);
- goto exit;
- }
+ if (!strcmp(key, "in_port")
+ && portno_names
+ && simap_contains(portno_names, value_s)) {
+ flow->in_port.ofp_port = u16_to_ofp(
+ simap_get(portno_names, value_s));
+ if (mask) {
+ mask->in_port.ofp_port = u16_to_ofp(ntohs(OVS_BE16_MAX));
+ }
+ } else {
+ field_error = mf_parse_value(mf, value_s, &value);
+ if (field_error) {
+ error = xasprintf("%s: bad value for %s (%s)",
+ s, key, field_error);
+ free(field_error);
+ goto exit;
+ }
- mf_set_flow_value(mf, &value, flow);
+ mf_set_flow_value(mf, &value, flow);
+ if (mask) {
+ mf_mask_field(mf, mask);
+ }
+ }
}
}
if (error) {
memset(flow, 0, sizeof *flow);
+ if (mask) {
+ memset(mask, 0, sizeof *mask);
+ }
+ }
+ return error;
+}
+
+static char * WARN_UNUSED_RESULT
+parse_bucket_str(struct ofputil_bucket *bucket, char *str_,
+ enum ofputil_protocol *usable_protocols)
+{
+ char *pos, *key, *value;
+ struct ofpbuf ofpacts;
+ struct ds actions;
+ char *error;
+
+ bucket->weight = 1;
+ bucket->watch_port = OFPP_ANY;
+ bucket->watch_group = OFPG11_ANY;
+
+ ds_init(&actions);
+
+ pos = str_;
+ error = NULL;
+ while (ofputil_parse_key_value(&pos, &key, &value)) {
+ if (!strcasecmp(key, "weight")) {
+ error = str_to_u16(value, "weight", &bucket->weight);
+ } else if (!strcasecmp(key, "watch_port")) {
+ if (!ofputil_port_from_string(value, &bucket->watch_port)
+ || (ofp_to_u16(bucket->watch_port) >= ofp_to_u16(OFPP_MAX)
+ && bucket->watch_port != OFPP_ANY)) {
+ error = xasprintf("%s: invalid watch_port", value);
+ }
+ } else if (!strcasecmp(key, "watch_group")) {
+ error = str_to_u32(value, &bucket->watch_group);
+ if (!error && bucket->watch_group > OFPG_MAX) {
+ error = xasprintf("invalid watch_group id %"PRIu32,
+ bucket->watch_group);
+ }
+ } else if (!strcasecmp(key, "action") || !strcasecmp(key, "actions")) {
+ ds_put_format(&actions, "%s,", value);
+ } else {
+ ds_put_format(&actions, "%s(%s),", key, value);
+ }
+
+ if (error) {
+ ds_destroy(&actions);
+ return error;
+ }
+ }
+
+ if (!actions.length) {
+ return xstrdup("bucket must specify actions");
+ }
+ ds_chomp(&actions, ',');
+
+ ofpbuf_init(&ofpacts, 0);
+ error = ofpacts_parse_actions(ds_cstr(&actions), &ofpacts,
+ usable_protocols);
+ ds_destroy(&actions);
+ if (error) {
+ ofpbuf_uninit(&ofpacts);
+ return error;
+ }
+ bucket->ofpacts = ofpbuf_data(&ofpacts);
+ bucket->ofpacts_len = ofpbuf_size(&ofpacts);
+
+ return NULL;
+}
+
+static char * WARN_UNUSED_RESULT
+parse_ofp_group_mod_str__(struct ofputil_group_mod *gm, uint16_t command,
+ char *string,
+ enum ofputil_protocol *usable_protocols)
+{
+ enum {
+ F_GROUP_TYPE = 1 << 0,
+ F_BUCKETS = 1 << 1,
+ } fields;
+ char *save_ptr = NULL;
+ bool had_type = false;
+ char *name;
+ struct ofputil_bucket *bucket;
+ char *error = NULL;
+
+ *usable_protocols = OFPUTIL_P_OF11_UP;
+
+ switch (command) {
+ case OFPGC11_ADD:
+ fields = F_GROUP_TYPE | F_BUCKETS;
+ break;
+
+ case OFPGC11_DELETE:
+ fields = 0;
+ break;
+
+ case OFPGC11_MODIFY:
+ fields = F_GROUP_TYPE | F_BUCKETS;
+ break;
+
+ default:
+ OVS_NOT_REACHED();
+ }
+
+ memset(gm, 0, sizeof *gm);
+ gm->command = command;
+ gm->group_id = OFPG_ANY;
+ list_init(&gm->buckets);
+ if (command == OFPGC11_DELETE && string[0] == '\0') {
+ gm->group_id = OFPG_ALL;
+ return NULL;
+ }
+
+ *usable_protocols = OFPUTIL_P_OF11_UP;
+
+ if (fields & F_BUCKETS) {
+ char *bkt_str = strstr(string, "bucket");
+
+ if (bkt_str) {
+ *bkt_str = '\0';
+ }
+
+ while (bkt_str) {
+ char *next_bkt_str;
+
+ bkt_str = strchr(bkt_str + 1, '=');
+ if (!bkt_str) {
+ error = xstrdup("must specify bucket content");
+ goto out;
+ }
+ bkt_str++;
+
+ next_bkt_str = strstr(bkt_str, "bucket");
+ if (next_bkt_str) {
+ *next_bkt_str = '\0';
+ }
+
+ bucket = xzalloc(sizeof(struct ofputil_bucket));
+ error = parse_bucket_str(bucket, bkt_str, usable_protocols);
+ if (error) {
+ free(bucket);
+ goto out;
+ }
+ list_push_back(&gm->buckets, &bucket->list_node);
+
+ bkt_str = next_bkt_str;
+ }
+ }
+
+ for (name = strtok_r(string, "=, \t\r\n", &save_ptr); name;
+ name = strtok_r(NULL, "=, \t\r\n", &save_ptr)) {
+ char *value;
+
+ value = strtok_r(NULL, ", \t\r\n", &save_ptr);
+ if (!value) {
+ error = xasprintf("field %s missing value", name);
+ goto out;
+ }
+
+ if (!strcmp(name, "group_id")) {
+ if(!strcmp(value, "all")) {
+ gm->group_id = OFPG_ALL;
+ } else {
+ char *error = str_to_u32(value, &gm->group_id);
+ if (error) {
+ goto out;
+ }
+ if (gm->group_id != OFPG_ALL && gm->group_id > OFPG_MAX) {
+ error = xasprintf("invalid group id %"PRIu32,
+ gm->group_id);
+ goto out;
+ }
+ }
+ } else if (!strcmp(name, "type")){
+ if (!(fields & F_GROUP_TYPE)) {
+ error = xstrdup("type is not needed");
+ goto out;
+ }
+ if (!strcmp(value, "all")) {
+ gm->type = OFPGT11_ALL;
+ } else if (!strcmp(value, "select")) {
+ gm->type = OFPGT11_SELECT;
+ } else if (!strcmp(value, "indirect")) {
+ gm->type = OFPGT11_INDIRECT;
+ } else if (!strcmp(value, "ff") ||
+ !strcmp(value, "fast_failover")) {
+ gm->type = OFPGT11_FF;
+ } else {
+ error = xasprintf("invalid group type %s", value);
+ goto out;
+ }
+ had_type = true;
+ } else if (!strcmp(name, "bucket")) {
+ error = xstrdup("bucket is not needed");
+ goto out;
+ } else {
+ error = xasprintf("unknown keyword %s", name);
+ goto out;
+ }
+ }
+ if (gm->group_id == OFPG_ANY) {
+ error = xstrdup("must specify a group_id");
+ goto out;
+ }
+ if (fields & F_GROUP_TYPE && !had_type) {
+ error = xstrdup("must specify a type");
+ goto out;
+ }
+
+ /* Validate buckets. */
+ LIST_FOR_EACH (bucket, list_node, &gm->buckets) {
+ if (bucket->weight != 1 && gm->type != OFPGT11_SELECT) {
+ error = xstrdup("Only select groups can have bucket weights.");
+ goto out;
+ }
+ }
+ if (gm->type == OFPGT11_INDIRECT && !list_is_short(&gm->buckets)) {
+ error = xstrdup("Indirect groups can have at most one bucket.");
+ goto out;
+ }
+
+ return NULL;
+ out:
+ ofputil_bucket_list_destroy(&gm->buckets);
+ return error;
+}
+
+char * WARN_UNUSED_RESULT
+parse_ofp_group_mod_str(struct ofputil_group_mod *gm, uint16_t command,
+ const char *str_,
+ enum ofputil_protocol *usable_protocols)
+{
+ char *string = xstrdup(str_);
+ char *error = parse_ofp_group_mod_str__(gm, command, string,
+ usable_protocols);
+ free(string);
+
+ if (error) {
+ ofputil_bucket_list_destroy(&gm->buckets);
}
return error;
}
+
+char * WARN_UNUSED_RESULT
+parse_ofp_group_mod_file(const char *file_name, uint16_t command,
+ struct ofputil_group_mod **gms, size_t *n_gms,
+ enum ofputil_protocol *usable_protocols)
+{
+ size_t allocated_gms;
+ int line_number;
+ FILE *stream;
+ struct ds s;
+
+ *gms = NULL;
+ *n_gms = 0;
+
+ stream = !strcmp(file_name, "-") ? stdin : fopen(file_name, "r");
+ if (stream == NULL) {
+ return xasprintf("%s: open failed (%s)",
+ file_name, ovs_strerror(errno));
+ }
+
+ allocated_gms = *n_gms;
+ ds_init(&s);
+ line_number = 0;
+ *usable_protocols = OFPUTIL_P_OF11_UP;
+ while (!ds_get_preprocessed_line(&s, stream, &line_number)) {
+ enum ofputil_protocol usable;
+ char *error;
+
+ if (*n_gms >= allocated_gms) {
+ size_t i;
+
+ *gms = x2nrealloc(*gms, &allocated_gms, sizeof **gms);
+ for (i = 0; i < *n_gms; i++) {
+ list_moved(&(*gms)[i].buckets);
+ }
+ }
+ error = parse_ofp_group_mod_str(&(*gms)[*n_gms], command, ds_cstr(&s),
+ &usable);
+ if (error) {
+ size_t i;
+
+ for (i = 0; i < *n_gms; i++) {
+ ofputil_bucket_list_destroy(&(*gms)[i].buckets);
+ }
+ free(*gms);
+ *gms = NULL;
+ *n_gms = 0;
+
+ ds_destroy(&s);
+ if (stream != stdin) {
+ fclose(stream);
+ }
+
+ return xasprintf("%s:%d: %s", file_name, line_number, error);
+ }
+ *usable_protocols &= usable;
+ *n_gms += 1;
+ }
+
+ ds_destroy(&s);
+ if (stream != stdin) {
+ fclose(stream);
+ }
+ return NULL;
+}