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authorGuduri Prathyusha <gprathyusha@caviumnetworks.com>2017-07-04 10:22:59 +0530
committerJerin Jacob <jerin.jacob@caviumnetworks.com>2017-07-07 09:31:19 +0200
commit89e5eb118017824028fbffc581acabc6113aa742 (patch)
treeda016ab38661bcd92ecf63325e26ca265f4f0a3f /app/test-eventdev/parser.c
parentccda04998acbdb57111a8305e9933ee5f5a82d29 (diff)
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app/testeventdev: add string parsing helpers
Add a couple of help functions that will allow parsing many types of input parameters, i.e.: bool, 16, 32, 64 bits, hex and list of cores etc. Derived from examples/ip_pipeline/parser.h Signed-off-by: Guduri Prathyusha <gprathyusha@caviumnetworks.com> Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
Diffstat (limited to 'app/test-eventdev/parser.c')
-rw-r--r--app/test-eventdev/parser.c388
1 files changed, 388 insertions, 0 deletions
diff --git a/app/test-eventdev/parser.c b/app/test-eventdev/parser.c
new file mode 100644
index 0000000..4925e19
--- /dev/null
+++ b/app/test-eventdev/parser.c
@@ -0,0 +1,388 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016 Intel Corporation. All rights reserved.
+ * Copyright(c) 2017 Cavium Networks Ltd. 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 <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <getopt.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <string.h>
+#include <libgen.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include <stdbool.h>
+
+#include <rte_errno.h>
+#include <rte_string_fns.h>
+
+#include "parser.h"
+
+static uint32_t
+get_hex_val(char c)
+{
+ switch (c) {
+ case '0': case '1': case '2': case '3': case '4': case '5':
+ case '6': case '7': case '8': case '9':
+ return c - '0';
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+ return c - 'A' + 10;
+ case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+ return c - 'a' + 10;
+ default:
+ return 0;
+ }
+}
+
+int
+parser_read_arg_bool(const char *p)
+{
+ p = skip_white_spaces(p);
+ int result = -EINVAL;
+
+ if (((p[0] == 'y') && (p[1] == 'e') && (p[2] == 's')) ||
+ ((p[0] == 'Y') && (p[1] == 'E') && (p[2] == 'S'))) {
+ p += 3;
+ result = 1;
+ }
+
+ if (((p[0] == 'o') && (p[1] == 'n')) ||
+ ((p[0] == 'O') && (p[1] == 'N'))) {
+ p += 2;
+ result = 1;
+ }
+
+ if (((p[0] == 'n') && (p[1] == 'o')) ||
+ ((p[0] == 'N') && (p[1] == 'O'))) {
+ p += 2;
+ result = 0;
+ }
+
+ if (((p[0] == 'o') && (p[1] == 'f') && (p[2] == 'f')) ||
+ ((p[0] == 'O') && (p[1] == 'F') && (p[2] == 'F'))) {
+ p += 3;
+ result = 0;
+ }
+
+ p = skip_white_spaces(p);
+
+ if (p[0] != '\0')
+ return -EINVAL;
+
+ return result;
+}
+
+int
+parser_read_uint64(uint64_t *value, const char *p)
+{
+ char *next;
+ uint64_t val;
+
+ p = skip_white_spaces(p);
+ if (!isdigit(*p))
+ return -EINVAL;
+
+ val = strtoul(p, &next, 10);
+ 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 = skip_white_spaces(p);
+ if (*p != '\0')
+ return -EINVAL;
+
+ *value = val;
+ return 0;
+}
+
+int
+parser_read_int32(int32_t *value, const char *p)
+{
+ char *next;
+ int32_t val;
+
+ p = skip_white_spaces(p);
+ if (!isdigit(*p))
+ return -EINVAL;
+
+ val = strtol(p, &next, 10);
+ if (p == next)
+ return -EINVAL;
+
+ *value = val;
+ return 0;
+}
+
+int
+parser_read_uint64_hex(uint64_t *value, const char *p)
+{
+ char *next;
+ uint64_t val;
+
+ p = skip_white_spaces(p);
+
+ val = strtoul(p, &next, 16);
+ if (p == next)
+ return -EINVAL;
+
+ p = skip_white_spaces(next);
+ if (*p != '\0')
+ return -EINVAL;
+
+ *value = val;
+ return 0;
+}
+
+int
+parser_read_uint32(uint32_t *value, const char *p)
+{
+ uint64_t val = 0;
+ int ret = parser_read_uint64(&val, p);
+
+ if (ret < 0)
+ return ret;
+
+ if (val > UINT32_MAX)
+ return -ERANGE;
+
+ *value = val;
+ return 0;
+}
+
+int
+parser_read_uint32_hex(uint32_t *value, const char *p)
+{
+ uint64_t val = 0;
+ int ret = parser_read_uint64_hex(&val, p);
+
+ if (ret < 0)
+ return ret;
+
+ if (val > UINT32_MAX)
+ return -ERANGE;
+
+ *value = val;
+ return 0;
+}
+
+int
+parser_read_uint16(uint16_t *value, const char *p)
+{
+ uint64_t val = 0;
+ int ret = parser_read_uint64(&val, p);
+
+ if (ret < 0)
+ return ret;
+
+ if (val > UINT16_MAX)
+ return -ERANGE;
+
+ *value = val;
+ return 0;
+}
+
+int
+parser_read_uint16_hex(uint16_t *value, const char *p)
+{
+ uint64_t val = 0;
+ int ret = parser_read_uint64_hex(&val, p);
+
+ if (ret < 0)
+ return ret;
+
+ if (val > UINT16_MAX)
+ return -ERANGE;
+
+ *value = val;
+ return 0;
+}
+
+int
+parser_read_uint8(uint8_t *value, const char *p)
+{
+ uint64_t val = 0;
+ int ret = parser_read_uint64(&val, p);
+
+ if (ret < 0)
+ return ret;
+
+ if (val > UINT8_MAX)
+ return -ERANGE;
+
+ *value = val;
+ return 0;
+}
+
+int
+parser_read_uint8_hex(uint8_t *value, const char *p)
+{
+ uint64_t val = 0;
+ int ret = parser_read_uint64_hex(&val, p);
+
+ if (ret < 0)
+ return ret;
+
+ if (val > UINT8_MAX)
+ return -ERANGE;
+
+ *value = val;
+ return 0;
+}
+
+int
+parse_tokenize_string(char *string, char *tokens[], uint32_t *n_tokens)
+{
+ uint32_t i;
+
+ if ((string == NULL) ||
+ (tokens == NULL) ||
+ (*n_tokens < 1))
+ return -EINVAL;
+
+ for (i = 0; i < *n_tokens; i++) {
+ tokens[i] = strtok_r(string, PARSE_DELIMITER, &string);
+ if (tokens[i] == NULL)
+ break;
+ }
+
+ if ((i == *n_tokens) &&
+ (strtok_r(string, PARSE_DELIMITER, &string) != NULL))
+ return -E2BIG;
+
+ *n_tokens = i;
+ return 0;
+}
+
+int
+parse_hex_string(char *src, uint8_t *dst, uint32_t *size)
+{
+ char *c;
+ uint32_t len, i;
+
+ /* Check input parameters */
+ if ((src == NULL) ||
+ (dst == NULL) ||
+ (size == NULL) ||
+ (*size == 0))
+ return -1;
+
+ len = strlen(src);
+ if (((len & 3) != 0) ||
+ (len > (*size) * 2))
+ return -1;
+ *size = len / 2;
+
+ for (c = src; *c != 0; c++) {
+ if ((((*c) >= '0') && ((*c) <= '9')) ||
+ (((*c) >= 'A') && ((*c) <= 'F')) ||
+ (((*c) >= 'a') && ((*c) <= 'f')))
+ continue;
+
+ return -1;
+ }
+
+ /* Convert chars to bytes */
+ for (i = 0; i < *size; i++)
+ dst[i] = get_hex_val(src[2 * i]) * 16 +
+ get_hex_val(src[2 * i + 1]);
+
+ return 0;
+}
+
+int
+parse_lcores_list(bool lcores[], const char *corelist)
+{
+ int i, idx = 0;
+ int min, max;
+ char *end = NULL;
+
+ if (corelist == NULL)
+ return -1;
+ while (isblank(*corelist))
+ corelist++;
+ i = strlen(corelist);
+ while ((i > 0) && isblank(corelist[i - 1]))
+ i--;
+
+ /* Get list of lcores */
+ min = RTE_MAX_LCORE;
+ do {
+ while (isblank(*corelist))
+ corelist++;
+ if (*corelist == '\0')
+ return -1;
+ idx = strtoul(corelist, &end, 10);
+
+ if (end == NULL)
+ return -1;
+ while (isblank(*end))
+ end++;
+ if (*end == '-') {
+ min = idx;
+ } else if ((*end == ',') || (*end == '\0')) {
+ max = idx;
+ if (min == RTE_MAX_LCORE)
+ min = idx;
+ for (idx = min; idx <= max; idx++) {
+ if (lcores[idx] == 1)
+ return -E2BIG;
+ lcores[idx] = 1;
+ }
+
+ min = RTE_MAX_LCORE;
+ } else
+ return -1;
+ corelist = end + 1;
+ } while (*end != '\0');
+
+ return 0;
+}