+++ /dev/null
-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-#include <string.h>
-#include <unistd.h>
-
-#include <rte_malloc.h>
-#include <rte_log.h>
-#include <rte_string_fns.h>
-
-#include "rte_eth_pcap_arg_parser.h"
-
-/*
- * Initializes a non NULL dictionary reference to be used later on.
- */
-inline int
-rte_eth_pcap_init_args_dict(struct args_dict *dict)
-{
- dict->index = 0;
- dict->size = RTE_ETH_PCAP_ARG_PARSER_MAX_ARGS;
- memset(dict->pairs, 0, dict->size);
- return 0;
-}
-
-/*
- * Adds a key-value pair to a given non-NULL dictionary reference.
- * The final key will be the name+key.
- * Returns error in case the dictionary is full or if the key is duplicated.
- */
-inline int
-rte_eth_pcap_add_pair_to_dict(struct args_dict *dict,
- char *key,
- char *val)
-{
- unsigned i;
- struct key_value* entry;
-
- /* is the dictionary full? */
- if (dict->index >= dict->size) {
- RTE_LOG(ERR, PMD, "Couldn't add %s, dictionary is full\n", key);
- return -1;
- }
-
- /* Check if the key is duplicated */
- for (i = 0; i < dict->index; i++) {
- entry = &dict->pairs[i];
- if (strcmp(entry->key, key) == 0) {
- RTE_LOG(ERR, PMD, "Couldn't add %s, duplicated key\n", key);
- return -1;
- }
- }
-
- entry = &dict->pairs[dict->index];
- entry->key = key;
- entry->value = val;
- dict->index++;
- return 0;
-
-}
-
-#define RTE_ETH_PCAP_PAIRS_DELIM ';'
-#define RTE_ETH_PCAP_KEY_VALUE_DELIM '='
-/*
- * Receives a string with a list of arguments following the pattern
- * key=value;key=value;... and inserts them into the non NULL dictionary.
- * strtok is used so the params string will be copied to be modified.
- */
-inline int
-rte_eth_pcap_tokenize_args(struct args_dict *dict,
- const char *name,
- const char *params)
-{
- int i;
- char *args;
- char *pairs[RTE_ETH_PCAP_ARG_PARSER_MAX_ARGS];
- char *pair[2];
- int num_of_pairs;
-
- /* If params are empty, nothing to do */
- if (params == NULL || params[0] == 0) {
- RTE_LOG(ERR, PMD, "Couldn't parse %s device, empty arguments\n", name);
- return -1;
- }
-
- /* Copy the const char *params to a modifiable string
- * to pass to rte_strsplit
- */
- args = strdup(params);
- if(args == NULL){
- RTE_LOG(ERR, PMD, "Couldn't parse %s device \n", name);
- return -1;
- }
-
- num_of_pairs = rte_strsplit(args, strnlen(args, sysconf(_SC_ARG_MAX)), pairs,
- RTE_ETH_PCAP_ARG_PARSER_MAX_ARGS, RTE_ETH_PCAP_PAIRS_DELIM);
-
- for (i = 0; i < num_of_pairs; i++) {
- pair[0] = NULL;
- pair[1] = NULL;
-
- rte_strsplit(pairs[i], strnlen(pairs[i], sysconf(_SC_ARG_MAX)), pair, 2,
- RTE_ETH_PCAP_KEY_VALUE_DELIM);
-
- if (pair[0] == NULL || pair[1] == NULL || pair[0][0] == 0
- || pair[1][0] == 0) {
- RTE_LOG(ERR, PMD,
- "Couldn't parse %s device, wrong key or value \n", name);
- goto error;
- }
-
- if (rte_eth_pcap_add_pair_to_dict(dict, pair[0], pair[1]) < 0)
- goto error;
- }
- return 0;
-
-error:
- rte_free(args);
- return -1;
-}
-
-/*
- * Determines whether a key is valid or not by looking
- * into a list of valid keys.
- */
-static inline int
-is_valid_key(const char *valid[],
- struct key_value *pair)
-{
- const char **valid_ptr;
-
- for (valid_ptr = valid; *valid_ptr != NULL; valid_ptr++)
- if (strstr(pair->key, *valid_ptr) != NULL)
- return 1;
- return 0;
-}
-
-/*
- * Determines whether all keys are valid or not by looking
- * into a list of valid keys.
- */
-static inline int
-check_for_valid_keys(struct args_dict *dict,
- const char *valid[])
-{
- unsigned k_index, ret;
- struct key_value *pair;
-
- for (k_index = 0; k_index < dict->index; k_index++) {
- pair = &dict->pairs[k_index];
- ret = is_valid_key(valid, pair);
- if (!ret) {
- RTE_LOG(ERR, PMD,
- "Error parsing device, invalid key %s\n", pair->key);
- return -1;
- }
- }
- return 0;
-}
-
-/*
- * Returns the number of times a given arg_name exists on a dictionary.
- * E.g. given a dict = { rx0 = 0, rx1 = 1, tx0 = 2 } the number of args for
- * arg "rx" will be 2.
- */
-inline unsigned
-rte_eth_pcap_num_of_args(struct args_dict *dict, const char *arg_name)
-{
- unsigned k_index;
- struct key_value *pair;
- unsigned num_of_keys;
-
- num_of_keys = 0;
- for (k_index = 0; k_index < dict->index; k_index++) {
- pair = &dict->pairs[k_index];
- if (strcmp(pair->key, arg_name) == 0)
- num_of_keys++;
- }
-
- return num_of_keys;
-}
-
-/*
- * Calls the handler function for a given arg_name passing the
- * value on the dictionary for that key and a given extra argument.
- */
-inline int
-rte_eth_pcap_post_process_arguments(struct args_dict *dict,
- const char *arg_name,
- arg_handler_t handler,
- void *extra_args)
-{
- unsigned k_index;
- struct key_value *pair;
-
- for (k_index = 0; k_index < dict->index; k_index++) {
- pair = &dict->pairs[k_index];
- if (strstr(pair->key, arg_name) != NULL) {
- if ((*handler)(pair->value, extra_args) < 0)
- return -1;
- }
- }
- return 0;
-}
-
-/*
- * Parses the arguments "key=value;key=value;..." string and returns
- * a simple dictionary implementation containing these pairs. It also
- * checks if only valid keys were used.
- */
-inline int
-rte_eth_pcap_parse_args(struct args_dict *dict,
- const char *name,
- const char *args,
- const char *valids[])
-{
-
- int ret;
-
- ret = rte_eth_pcap_tokenize_args(dict, name, args);
- if (ret < 0)
- return ret;
-
- return check_for_valid_keys(dict, valids);
-}
-
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