/*
- * Copyright (c) 2010, 2011, 2012, 2013, 2014, 2015 Nicira, Inc.
+ * Copyright (c) 2010, 2011, 2012, 2013, 2014, 2015, 2016 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 <ctype.h>
#include <errno.h>
#include <stdlib.h>
+#include <netinet/in.h>
#include "byte-order.h"
#include "dynamic-string.h"
* Returns NULL if successful, otherwise a malloc()'d string describing the
* error. The caller is responsible for freeing the returned string. */
char * OVS_WARN_UNUSED_RESULT
-str_to_mac(const char *str, uint8_t mac[ETH_ADDR_LEN])
+str_to_mac(const char *str, struct eth_addr *mac)
{
- if (!ovs_scan(str, ETH_ADDR_SCAN_FMT, ETH_ADDR_SCAN_ARGS(mac))) {
+ if (!ovs_scan(str, ETH_ADDR_SCAN_FMT, ETH_ADDR_SCAN_ARGS(*mac))) {
return xasprintf("invalid mac address %s", str);
}
return NULL;
return NULL;
}
+/* Parses 'str' as a conntrack helper into 'alg'.
+ *
+ * Returns NULL if successful, otherwise a malloc()'d string describing the
+ * error. The caller is responsible for freeing the returned string. */
+char * OVS_WARN_UNUSED_RESULT
+str_to_connhelper(const char *str, uint16_t *alg)
+{
+ if (!strcmp(str, "ftp")) {
+ *alg = IPPORT_FTP;
+ return NULL;
+ }
+ return xasprintf("invalid conntrack helper \"%s\"", str);
+}
+
struct protocol {
const char *name;
uint16_t dl_type;
{
static const struct protocol protocols[] = {
{ "ip", ETH_TYPE_IP, 0 },
+ { "ipv4", ETH_TYPE_IP, 0 },
+ { "ip4", ETH_TYPE_IP, 0 },
{ "arp", ETH_TYPE_ARP, 0 },
{ "icmp", ETH_TYPE_IP, IPPROTO_ICMP },
{ "tcp", ETH_TYPE_IP, IPPROTO_TCP },
union mf_value value, mask;
char *error;
+ if (!*s) {
+ /* If there's no string, we're just trying to match on the
+ * existence of the field, so use a no-op value. */
+ s = "0/0";
+ }
+
error = mf_parse(mf, s, &value, &mask);
if (!error) {
- *usable_protocols &= mf_set(mf, &value, &mask, match);
+ *usable_protocols &= mf_set(mf, &value, &mask, match, &error);
}
return error;
}
F_PRIORITY = 1 << 4,
F_FLAGS = 1 << 5,
} fields;
- char *save_ptr = NULL;
char *act_str = NULL;
- char *name;
+ char *name, *value;
*usable_protocols = OFPUTIL_P_ANY;
OVS_NOT_REACHED();
}
- match_init_catchall(&fm->match);
- fm->priority = OFP_DEFAULT_PRIORITY;
- fm->cookie = htonll(0);
- fm->cookie_mask = htonll(0);
+ *fm = (struct ofputil_flow_mod) {
+ .match = MATCH_CATCHALL_INITIALIZER,
+ .priority = OFP_DEFAULT_PRIORITY,
+ .table_id = 0xff,
+ .command = command,
+ .buffer_id = UINT32_MAX,
+ .out_port = OFPP_ANY,
+ .out_group = OFPG_ANY,
+ .delete_reason = OFPRR_DELETE,
+ };
+ /* For modify, by default, don't update the cookie. */
if (command == OFPFC_MODIFY || command == OFPFC_MODIFY_STRICT) {
- /* For modify, by default, don't update the cookie. */
fm->new_cookie = OVS_BE64_MAX;
- } else{
- fm->new_cookie = htonll(0);
}
- fm->modify_cookie = false;
- fm->table_id = 0xff;
- fm->command = command;
- fm->idle_timeout = OFP_FLOW_PERMANENT;
- fm->hard_timeout = OFP_FLOW_PERMANENT;
- fm->buffer_id = UINT32_MAX;
- fm->out_port = OFPP_ANY;
- fm->flags = 0;
- fm->importance = 0;
- fm->out_group = OFPG11_ANY;
- fm->delete_reason = OFPRR_DELETE;
+
if (fields & F_ACTIONS) {
act_str = extract_actions(string);
if (!act_str) {
return xstrdup("must specify an action");
}
}
- for (name = strtok_r(string, "=, \t\r\n", &save_ptr); name;
- name = strtok_r(NULL, "=, \t\r\n", &save_ptr)) {
+
+ while (ofputil_parse_key_value(&string, &name, &value)) {
const struct protocol *p;
char *error = NULL;
} else if (!strcmp(name, "no_readonly_table")
|| !strcmp(name, "allow_hidden_fields")) {
/* ignore these fields. */
+ } else if (mf_from_name(name)) {
+ error = parse_field(mf_from_name(name), value, &fm->match,
+ usable_protocols);
} else {
- char *value;
-
- value = strtok_r(NULL, ", \t\r\n", &save_ptr);
- if (!value) {
+ if (!*value) {
return xasprintf("field %s missing value", name);
}
error = xasprintf("%s is not a valid OpenFlow port",
value);
}
+ } else if (fields & F_OUT_PORT && !strcmp(name, "out_group")) {
+ *usable_protocols &= OFPUTIL_P_OF11_UP;
+ if (!ofputil_group_from_string(value, &fm->out_group)) {
+ error = xasprintf("%s is not a valid OpenFlow group",
+ value);
+ }
} else if (fields & F_PRIORITY && !strcmp(name, "priority")) {
uint16_t priority = 0;
error = str_to_be64(value, &fm->new_cookie);
fm->modify_cookie = true;
}
- } else if (mf_from_name(name)) {
- 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")
} else {
error = xasprintf("unknown keyword %s", name);
}
+ }
- if (error) {
- return error;
- }
+ if (error) {
+ return error;
}
}
/* Check for usable protocol interdependencies between match fields. */
enum ofputil_protocol *usable_protocols)
{
static atomic_count id = ATOMIC_COUNT_INIT(0);
- char *save_ptr = NULL;
- char *name;
+ char *name, *value;
fmr->id = atomic_count_inc(&id);
fmr->table_id = 0xff;
match_init_catchall(&fmr->match);
- for (name = strtok_r(string, "=, \t\r\n", &save_ptr); name;
- name = strtok_r(NULL, "=, \t\r\n", &save_ptr)) {
+ while (ofputil_parse_key_value(&string, &name, &value)) {
const struct protocol *p;
+ char *error = NULL;
if (!strcmp(name, "!initial")) {
fmr->flags &= ~NXFMF_INITIAL;
if (p->nw_proto) {
match_set_nw_proto(&fmr->match, p->nw_proto);
}
+ } else if (mf_from_name(name)) {
+ error = parse_field(mf_from_name(name), value, &fmr->match,
+ usable_protocols);
} else {
- char *value;
-
- value = strtok_r(NULL, ", \t\r\n", &save_ptr);
- if (!value) {
+ if (!*value) {
return xasprintf("%s: field %s missing value", str_, name);
}
if (!strcmp(name, "table")) {
- char *error = str_to_u8(value, "table", &fmr->table_id);
- if (error) {
- return error;
- }
+ error = str_to_u8(value, "table", &fmr->table_id);
} else if (!strcmp(name, "out_port")) {
fmr->out_port = u16_to_ofp(atoi(value));
- } else if (mf_from_name(name)) {
- char *error;
-
- error = parse_field(mf_from_name(name), value, &fmr->match,
- usable_protocols);
- if (error) {
- return error;
- }
} else {
return xasprintf("%s: unknown keyword %s", str_, name);
}
}
+
+ if (error) {
+ return error;
+ }
}
return NULL;
}
return error;
}
+/* Convert 'setting' (as described for the "mod-table" command
+ * in ovs-ofctl man page) into 'tm->table_vacancy->vacancy_up' and
+ * 'tm->table_vacancy->vacancy_down' threshold values.
+ * For the two threshold values, value of vacancy_up is always greater
+ * than value of vacancy_down.
+ *
+ * Returns NULL if successful, otherwise a malloc()'d string describing the
+ * error. The caller is responsible for freeing the returned string. */
+char * OVS_WARN_UNUSED_RESULT
+parse_ofp_table_vacancy(struct ofputil_table_mod *tm, const char *setting)
+{
+ char *save_ptr = NULL;
+ char *vac_up, *vac_down;
+ char *value = xstrdup(setting);
+ char *ret_msg;
+ int vacancy_up, vacancy_down;
+
+ strtok_r(value, ":", &save_ptr);
+ vac_down = strtok_r(NULL, ",", &save_ptr);
+ if (!vac_down) {
+ ret_msg = xasprintf("Vacancy down value missing");
+ goto exit;
+ }
+ if (!str_to_int(vac_down, 0, &vacancy_down) ||
+ vacancy_down < 0 || vacancy_down > 100) {
+ ret_msg = xasprintf("Invalid vacancy down value \"%s\"", vac_down);
+ goto exit;
+ }
+ vac_up = strtok_r(NULL, ",", &save_ptr);
+ if (!vac_up) {
+ ret_msg = xasprintf("Vacancy up value missing");
+ goto exit;
+ }
+ if (!str_to_int(vac_up, 0, &vacancy_up) ||
+ vacancy_up < 0 || vacancy_up > 100) {
+ ret_msg = xasprintf("Invalid vacancy up value \"%s\"", vac_up);
+ goto exit;
+ }
+ if (vacancy_down > vacancy_up) {
+ ret_msg = xasprintf("Invalid vacancy range, vacancy up should be "
+ "greater than vacancy down (%s)",
+ ofperr_to_string(OFPERR_OFPBPC_BAD_VALUE));
+ goto exit;
+ }
+
+ free(value);
+ tm->table_vacancy.vacancy_down = vacancy_down;
+ tm->table_vacancy.vacancy_up = vacancy_up;
+ return NULL;
+
+exit:
+ free(value);
+ return ret_msg;
+}
+
/* Convert 'table_id' and 'setting' (as described for the "mod-table" command
* in the ovs-ofctl man page) into 'tm' for sending a table_mod command to a
* switch.
tm->miss = OFPUTIL_TABLE_MISS_DEFAULT;
tm->eviction = OFPUTIL_TABLE_EVICTION_DEFAULT;
tm->eviction_flags = UINT32_MAX;
-
+ tm->vacancy = OFPUTIL_TABLE_VACANCY_DEFAULT;
+ tm->table_vacancy.vacancy_down = 0;
+ tm->table_vacancy.vacancy_up = 0;
+ tm->table_vacancy.vacancy = 0;
/* Only OpenFlow 1.1 and 1.2 can configure table-miss via table_mod.
- * Only OpenFlow 1.4+ can configure eviction via table_mod.
- *
- * (OpenFlow 1.4+ can also configure vacancy events via table_mod, but OVS
- * doesn't support those yet and they're also logically a per-OpenFlow
- * session setting so it wouldn't make sense to support them here anyway.)
+ * Only OpenFlow 1.4+ can configure eviction and vacancy events
+ * via table_mod.
*/
if (!strcmp(setting, "controller")) {
tm->miss = OFPUTIL_TABLE_MISS_CONTROLLER;
} else if (!strcmp(setting, "noevict")) {
tm->eviction = OFPUTIL_TABLE_EVICTION_OFF;
*usable_versions = (1 << OFP14_VERSION) | (1u << OFP15_VERSION);
+ } else if (!strncmp(setting, "vacancy", strcspn(setting, ":"))) {
+ tm->vacancy = OFPUTIL_TABLE_VACANCY_ON;
+ *usable_versions = (1 << OFP14_VERSION) | (1u << OFP15_VERSION);
+ char *error = parse_ofp_table_vacancy(tm, setting);
+ if (error) {
+ return error;
+ }
+ } else if (!strcmp(setting, "novacancy")) {
+ tm->vacancy = OFPUTIL_TABLE_VACANCY_OFF;
+ *usable_versions = (1 << OFP14_VERSION) | (1u << OFP15_VERSION);
} else {
return xasprintf("invalid table_mod setting %s", setting);
}
error = parse_ofp_flow_mod_str(&(*fms)[*n_fms], ds_cstr(&s), command,
&usable);
if (error) {
+ char *err_msg;
size_t i;
for (i = 0; i < *n_fms; i++) {
fclose(stream);
}
- return xasprintf("%s:%d: %s", file_name, line_number, error);
+ err_msg = xasprintf("%s:%d: %s", file_name, line_number, error);
+ free(error);
+ return err_msg;
}
*usable_protocols &= usable; /* Each line can narrow the set. */
*n_fms += 1;
goto exit;
}
- if (!mf_is_zero(mf, flow)) {
+ if (mf_is_set(mf, flow)) {
error = xasprintf("%s: field %s set multiple times", s, key);
goto exit;
}
}
static char * OVS_WARN_UNUSED_RESULT
-parse_bucket_str(struct ofputil_bucket *bucket, char *str_,
+parse_bucket_str(struct ofputil_bucket *bucket, char *str_, uint8_t group_type,
enum ofputil_protocol *usable_protocols)
{
char *pos, *key, *value;
struct ds actions;
char *error;
- bucket->weight = 1;
+ bucket->weight = group_type == OFPGT11_SELECT ? 1 : 0;
bucket->bucket_id = OFPG15_BUCKET_ALL;
bucket->watch_port = OFPP_ANY;
- bucket->watch_group = OFPG11_ANY;
+ bucket->watch_group = OFPG_ANY;
ds_init(&actions);
parse_select_group_field(char *s, struct field_array *fa,
enum ofputil_protocol *usable_protocols)
{
- char *save_ptr = NULL;
- char *name;
+ char *name, *value_str;
- for (name = strtok_r(s, "=, \t\r\n", &save_ptr); name;
- name = strtok_r(NULL, "=, \t\r\n", &save_ptr)) {
+ while (ofputil_parse_key_value(&s, &name, &value_str)) {
const struct mf_field *mf = mf_from_name(name);
if (mf) {
char *error;
- const char *value_str;
union mf_value value;
if (bitmap_is_set(fa->used.bm, mf->id)) {
return xasprintf("%s: duplicate field", name);
}
- value_str = strtok_r(NULL, ", \t\r\n", &save_ptr);
- if (value_str) {
+ if (*value_str) {
error = mf_parse_value(mf, value_str, &value);
if (error) {
return error;
}
/* The mask cannot be all-zeros */
- if (is_all_zeros(&value, mf->n_bytes)) {
+ if (!mf_is_tun_metadata(mf) &&
+ is_all_zeros(&value, mf->n_bytes)) {
return xasprintf("%s: values are wildcards here "
"and must not be all-zeros", s);
}
F_COMMAND_BUCKET_ID = 1 << 2,
F_COMMAND_BUCKET_ID_ALL = 1 << 3,
} fields;
- char *save_ptr = NULL;
bool had_type = false;
bool had_command_bucket_id = false;
- char *name;
struct ofputil_bucket *bucket;
char *error = 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);
+ /* Strip the buckets off the end of 'string', if there are any, saving a
+ * pointer for later. We want to parse the buckets last because the bucket
+ * type influences bucket defaults. */
+ char *bkt_str = strstr(string, "bucket=");
+ if (bkt_str) {
+ if (!(fields & F_BUCKETS)) {
+ error = xstrdup("bucket is not needed");
goto out;
}
+ *bkt_str = '\0';
+ }
+ /* Parse everything before the buckets. */
+ char *pos = string;
+ char *name, *value;
+ while (ofputil_parse_key_value(&pos, &name, &value)) {
if (!strcmp(name, "command_bucket_id")) {
if (!(fields & F_COMMAND_BUCKET_ID)) {
error = xstrdup("command bucket id is not needed");
goto out;
}
had_type = true;
- } else if (!strcmp(name, "bucket")) {
- error = xstrdup("bucket is not needed");
- goto out;
} else if (!strcmp(name, "selection_method")) {
if (!(fields & F_GROUP_TYPE)) {
error = xstrdup("selection method is not needed");
goto out;
}
- /* Validate buckets. */
- LIST_FOR_EACH (bucket, list_node, &gm->buckets) {
- if (bucket->weight != 1 && gm->type != OFPGT11_SELECT) {
+ /* Now parse the buckets, if any. */
+ 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, gm->type, usable_protocols);
+ if (error) {
+ free(bucket);
+ goto out;
+ }
+ list_push_back(&gm->buckets, &bucket->list_node);
+
+ if (gm->type != OFPGT11_SELECT && bucket->weight) {
error = xstrdup("Only select groups can have bucket weights.");
goto out;
}
+
+ bkt_str = next_bkt_str;
}
if (gm->type == OFPGT11_INDIRECT && !list_is_short(&gm->buckets)) {
error = xstrdup("Indirect groups can have at most one bucket.");
}
char * OVS_WARN_UNUSED_RESULT
-parse_ofp_geneve_table_mod_str(struct ofputil_geneve_table_mod *gtm,
+parse_ofp_tlv_table_mod_str(struct ofputil_tlv_table_mod *ttm,
uint16_t command, const char *s,
enum ofputil_protocol *usable_protocols)
{
*usable_protocols = OFPUTIL_P_NXM_OXM_ANY;
- gtm->command = command;
- list_init(>m->mappings);
+ ttm->command = command;
+ list_init(&ttm->mappings);
while (*s) {
- struct ofputil_geneve_map *map = xmalloc(sizeof *map);
+ struct ofputil_tlv_map *map = xmalloc(sizeof *map);
int n;
if (*s == ',') {
s++;
}
- list_push_back(>m->mappings, &map->list_node);
+ list_push_back(&ttm->mappings, &map->list_node);
if (!ovs_scan(s, "{class=%"SCNi16",type=%"SCNi8",len=%"SCNi8"}->tun_metadata%"SCNi16"%n",
&map->option_class, &map->option_type, &map->option_len,
&map->index, &n)) {
- ofputil_uninit_geneve_table(>m->mappings);
- return xstrdup("invalid geneve mapping");
+ ofputil_uninit_tlv_table(&ttm->mappings);
+ return xstrdup("invalid tlv mapping");
}
s += n;
projects / cascardo / ovs.git / blobdiff