Acked-By: Nithin Dabilpuram <ndabilpu...@marvell.com>
On Thu, Oct 19, 2023 at 11:00 PM <sk...@marvell.com> wrote:
>
> From: Sunil Kumar Kori <sk...@marvell.com>
>
> Adds some helper functions to parse IPv4, IPv6 and MAC addresses
> string into respective datatype.
>
> Signed-off-by: Sunil Kumar Kori <sk...@marvell.com>
> Signed-off-by: Rakesh Kudurumalla <rkuduruma...@marvell.com>
> Acked-by: Jerin Jacob <jer...@marvell.com>
> ---
> app/graph/meson.build | 1 +
> app/graph/module_api.h | 1 +
> app/graph/utils.c | 156 +++++++++++++++++++++++++++++++++++++++++
> app/graph/utils.h | 14 ++++
> 4 files changed, 172 insertions(+)
> create mode 100644 app/graph/utils.c
> create mode 100644 app/graph/utils.h
>
> diff --git a/app/graph/meson.build b/app/graph/meson.build
> index c8d2b41b69..fd71036a95 100644
> --- a/app/graph/meson.build
> +++ b/app/graph/meson.build
> @@ -13,4 +13,5 @@ sources = files(
> 'cli.c',
> 'conn.c',
> 'main.c',
> + 'utils.c',
> )
> diff --git a/app/graph/module_api.h b/app/graph/module_api.h
> index 9826303f0c..ad4fb50989 100644
> --- a/app/graph/module_api.h
> +++ b/app/graph/module_api.h
> @@ -10,6 +10,7 @@
>
> #include "cli.h"
> #include "conn.h"
> +#include "utils.h"
> /*
> * Externs
> */
> diff --git a/app/graph/utils.c b/app/graph/utils.c
> new file mode 100644
> index 0000000000..c7b6ae83cf
> --- /dev/null
> +++ b/app/graph/utils.c
> @@ -0,0 +1,156 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2023 Marvell.
> + */
> +
> +#include <ctype.h>
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <string.h>
> +
> +#include <rte_common.h>
> +
> +#include "module_api.h"
> +
> +#define white_spaces_skip(pos) \
> +({ \
> + __typeof__(pos) _p = (pos); \
> + for ( ; isspace(*_p); _p++) \
> + ; \
> + _p; \
> +})
> +
> +static void
> +hex_string_to_uint64(uint64_t *dst, const char *hexs)
> +{
> + char buf[2] = {0};
> + uint8_t shift = 4;
> + int iter = 0;
> + char c;
> +
> + while ((c = *hexs++)) {
> + buf[0] = c;
> + *dst |= (strtol(buf, NULL, 16) << shift);
> + shift -= 4;
> + iter++;
> + if (iter == 2) {
> + iter = 0;
> + shift = 4;
> + dst++;
> + }
> + }
> +}
> +
> +int
> +parser_uint64_read(uint64_t *value, const char *p)
> +{
> + char *next;
> + uint64_t val;
> +
> + p = white_spaces_skip(p);
> + if (!isdigit(*p))
> + return -EINVAL;
> +
> + val = strtoul(p, &next, 0);
> + if (p == next)
> + return -EINVAL;
> +
> + p = next;
> + switch (*p) {
> + case 'T':
> + val *= 1024ULL;
> + /* fall through */
> + case 'G':
> + val *= 1024ULL;
> + /* fall through */
> + case 'M':
> + val *= 1024ULL;
> + /* fall through */
> + case 'k':
> + case 'K':
> + val *= 1024ULL;
> + p++;
> + break;
> + }
> +
> + p = white_spaces_skip(p);
> + if (*p != '\0')
> + return -EINVAL;
> +
> + *value = val;
> + return 0;
> +}
> +
> +int
> +parser_uint32_read(uint32_t *value, const char *p)
> +{
> + uint64_t val = 0;
> + int rc = parser_uint64_read(&val, p);
> +
> + if (rc < 0)
> + return rc;
> +
> + if (val > UINT32_MAX)
> + return -ERANGE;
> +
> + *value = val;
> + return 0;
> +}
> +
> +int
> +parser_ip4_read(uint32_t *value, char *p)
> +{
> + uint8_t shift = 24;
> + uint32_t ip = 0;
> + char *token;
> +
> + token = strtok(p, ".");
> + while (token != NULL) {
> + ip |= (((uint32_t)strtoul(token, NULL, 10)) << shift);
> + token = strtok(NULL, ".");
> + shift -= 8;
> + }
> +
> + *value = ip;
> +
> + return 0;
> +}
> +
> +int
> +parser_ip6_read(uint8_t *value, char *p)
> +{
> + uint64_t val = 0;
> + char *token;
> +
> + token = strtok(p, ":");
> + while (token != NULL) {
> + hex_string_to_uint64(&val, token);
> + *value = val;
> + token = strtok(NULL, ":");
> + value++;
> + val = 0;
> + }
> +
> + return 0;
> +}
> +
> +int
> +parser_mac_read(uint64_t *value, char *p)
> +{
> + uint64_t mac = 0, val = 0;
> + uint8_t shift = 40;
> + char *token;
> +
> + token = strtok(p, ":");
> + while (token != NULL) {
> + hex_string_to_uint64(&val, token);
> + mac |= val << shift;
> + token = strtok(NULL, ":");
> + shift -= 8;
> + val = 0;
> + }
> +
> + *value = mac;
> +
> + return 0;
> +}
> diff --git a/app/graph/utils.h b/app/graph/utils.h
> new file mode 100644
> index 0000000000..0ebb5de55a
> --- /dev/null
> +++ b/app/graph/utils.h
> @@ -0,0 +1,14 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2023 Marvell.
> + */
> +
> +#ifndef APP_GRAPH_UTILS_H
> +#define APP_GRAPH_UTILS_H
> +
> +int parser_uint64_read(uint64_t *value, const char *p);
> +int parser_uint32_read(uint32_t *value, const char *p);
> +int parser_ip4_read(uint32_t *value, char *p);
> +int parser_ip6_read(uint8_t *value, char *p);
> +int parser_mac_read(uint64_t *value, char *p);
> +
> +#endif
> --
> 2.25.1
>
