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path: root/drivers/net/softnic/parser.c
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Diffstat (limited to 'drivers/net/softnic/parser.c')
-rw-r--r--drivers/net/softnic/parser.c685
1 files changed, 685 insertions, 0 deletions
diff --git a/drivers/net/softnic/parser.c b/drivers/net/softnic/parser.c
new file mode 100644
index 0000000..7087b87
--- /dev/null
+++ b/drivers/net/softnic/parser.c
@@ -0,0 +1,685 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2016 Intel Corporation.
+ * Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org>
+ * All rights reserved.
+ */
+
+/* For inet_pton4() and inet_pton6() functions:
+ *
+ * Copyright (c) 1996 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+#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 <rte_errno.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
+softnic_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
+softnic_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
+softnic_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
+softnic_parser_read_uint32(uint32_t *value, const char *p)
+{
+ uint64_t val = 0;
+ int ret = softnic_parser_read_uint64(&val, p);
+
+ if (ret < 0)
+ return ret;
+
+ if (val > UINT32_MAX)
+ return -ERANGE;
+
+ *value = val;
+ return 0;
+}
+
+int
+softnic_parser_read_uint32_hex(uint32_t *value, const char *p)
+{
+ uint64_t val = 0;
+ int ret = softnic_parser_read_uint64_hex(&val, p);
+
+ if (ret < 0)
+ return ret;
+
+ if (val > UINT32_MAX)
+ return -ERANGE;
+
+ *value = val;
+ return 0;
+}
+
+int
+softnic_parser_read_uint16(uint16_t *value, const char *p)
+{
+ uint64_t val = 0;
+ int ret = softnic_parser_read_uint64(&val, p);
+
+ if (ret < 0)
+ return ret;
+
+ if (val > UINT16_MAX)
+ return -ERANGE;
+
+ *value = val;
+ return 0;
+}
+
+int
+softnic_parser_read_uint16_hex(uint16_t *value, const char *p)
+{
+ uint64_t val = 0;
+ int ret = softnic_parser_read_uint64_hex(&val, p);
+
+ if (ret < 0)
+ return ret;
+
+ if (val > UINT16_MAX)
+ return -ERANGE;
+
+ *value = val;
+ return 0;
+}
+
+int
+softnic_parser_read_uint8(uint8_t *value, const char *p)
+{
+ uint64_t val = 0;
+ int ret = softnic_parser_read_uint64(&val, p);
+
+ if (ret < 0)
+ return ret;
+
+ if (val > UINT8_MAX)
+ return -ERANGE;
+
+ *value = val;
+ return 0;
+}
+
+int
+softnic_parser_read_uint8_hex(uint8_t *value, const char *p)
+{
+ uint64_t val = 0;
+ int ret = softnic_parser_read_uint64_hex(&val, p);
+
+ if (ret < 0)
+ return ret;
+
+ if (val > UINT8_MAX)
+ return -ERANGE;
+
+ *value = val;
+ return 0;
+}
+
+int
+softnic_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
+softnic_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
+softnic_parse_mpls_labels(char *string, uint32_t *labels, uint32_t *n_labels)
+{
+ uint32_t n_max_labels = *n_labels, count = 0;
+
+ /* Check for void list of labels */
+ if (strcmp(string, "<void>") == 0) {
+ *n_labels = 0;
+ return 0;
+ }
+
+ /* At least one label should be present */
+ for ( ; (*string != '\0'); ) {
+ char *next;
+ int value;
+
+ if (count >= n_max_labels)
+ return -1;
+
+ if (count > 0) {
+ if (string[0] != ':')
+ return -1;
+
+ string++;
+ }
+
+ value = strtol(string, &next, 10);
+ if (next == string)
+ return -1;
+ string = next;
+
+ labels[count++] = (uint32_t)value;
+ }
+
+ *n_labels = count;
+ return 0;
+}
+
+#define INADDRSZ 4
+#define IN6ADDRSZ 16
+
+/* int
+ * inet_pton4(src, dst)
+ * like inet_aton() but without all the hexadecimal and shorthand.
+ * return:
+ * 1 if `src' is a valid dotted quad, else 0.
+ * notice:
+ * does not touch `dst' unless it's returning 1.
+ * author:
+ * Paul Vixie, 1996.
+ */
+static int
+inet_pton4(const char *src, unsigned char *dst)
+{
+ static const char digits[] = "0123456789";
+ int saw_digit, octets, ch;
+ unsigned char tmp[INADDRSZ], *tp;
+
+ saw_digit = 0;
+ octets = 0;
+ *(tp = tmp) = 0;
+ while ((ch = *src++) != '\0') {
+ const char *pch;
+
+ pch = strchr(digits, ch);
+ if (pch != NULL) {
+ unsigned int new = *tp * 10 + (pch - digits);
+
+ if (new > 255)
+ return 0;
+ if (!saw_digit) {
+ if (++octets > 4)
+ return 0;
+ saw_digit = 1;
+ }
+ *tp = (unsigned char)new;
+ } else if (ch == '.' && saw_digit) {
+ if (octets == 4)
+ return 0;
+ *++tp = 0;
+ saw_digit = 0;
+ } else
+ return 0;
+ }
+ if (octets < 4)
+ return 0;
+
+ memcpy(dst, tmp, INADDRSZ);
+ return 1;
+}
+
+/* int
+ * inet_pton6(src, dst)
+ * convert presentation level address to network order binary form.
+ * return:
+ * 1 if `src' is a valid [RFC1884 2.2] address, else 0.
+ * notice:
+ * (1) does not touch `dst' unless it's returning 1.
+ * (2) :: in a full address is silently ignored.
+ * credit:
+ * inspired by Mark Andrews.
+ * author:
+ * Paul Vixie, 1996.
+ */
+static int
+inet_pton6(const char *src, unsigned char *dst)
+{
+ static const char xdigits_l[] = "0123456789abcdef",
+ xdigits_u[] = "0123456789ABCDEF";
+ unsigned char tmp[IN6ADDRSZ], *tp = 0, *endp = 0, *colonp = 0;
+ const char *xdigits = 0, *curtok = 0;
+ int ch = 0, saw_xdigit = 0, count_xdigit = 0;
+ unsigned int val = 0;
+ unsigned int dbloct_count = 0;
+
+ memset((tp = tmp), '\0', IN6ADDRSZ);
+ endp = tp + IN6ADDRSZ;
+ colonp = NULL;
+ /* Leading :: requires some special handling. */
+ if (*src == ':')
+ if (*++src != ':')
+ return 0;
+ curtok = src;
+ saw_xdigit = count_xdigit = 0;
+ val = 0;
+
+ while ((ch = *src++) != '\0') {
+ const char *pch;
+
+ pch = strchr((xdigits = xdigits_l), ch);
+ if (pch == NULL)
+ pch = strchr((xdigits = xdigits_u), ch);
+ if (pch != NULL) {
+ if (count_xdigit >= 4)
+ return 0;
+ val <<= 4;
+ val |= (pch - xdigits);
+ if (val > 0xffff)
+ return 0;
+ saw_xdigit = 1;
+ count_xdigit++;
+ continue;
+ }
+ if (ch == ':') {
+ curtok = src;
+ if (!saw_xdigit) {
+ if (colonp)
+ return 0;
+ colonp = tp;
+ continue;
+ } else if (*src == '\0') {
+ return 0;
+ }
+ if (tp + sizeof(int16_t) > endp)
+ return 0;
+ *tp++ = (unsigned char)((val >> 8) & 0xff);
+ *tp++ = (unsigned char)(val & 0xff);
+ saw_xdigit = 0;
+ count_xdigit = 0;
+ val = 0;
+ dbloct_count++;
+ continue;
+ }
+ if (ch == '.' && ((tp + INADDRSZ) <= endp) &&
+ inet_pton4(curtok, tp) > 0) {
+ tp += INADDRSZ;
+ saw_xdigit = 0;
+ dbloct_count += 2;
+ break; /* '\0' was seen by inet_pton4(). */
+ }
+ return 0;
+ }
+ if (saw_xdigit) {
+ if (tp + sizeof(int16_t) > endp)
+ return 0;
+ *tp++ = (unsigned char)((val >> 8) & 0xff);
+ *tp++ = (unsigned char)(val & 0xff);
+ dbloct_count++;
+ }
+ if (colonp != NULL) {
+ /* if we already have 8 double octets, having a colon means error */
+ if (dbloct_count == 8)
+ return 0;
+
+ /* Since some memmove()'s erroneously fail to handle
+ * overlapping regions, we'll do the shift by hand.
+ */
+ const int n = tp - colonp;
+ int i;
+
+ for (i = 1; i <= n; i++) {
+ endp[-i] = colonp[n - i];
+ colonp[n - i] = 0;
+ }
+ tp = endp;
+ }
+ if (tp != endp)
+ return 0;
+ memcpy(dst, tmp, IN6ADDRSZ);
+ return 1;
+}
+
+static struct ether_addr *
+my_ether_aton(const char *a)
+{
+ int i;
+ char *end;
+ unsigned long o[ETHER_ADDR_LEN];
+ static struct ether_addr ether_addr;
+
+ i = 0;
+ do {
+ errno = 0;
+ o[i] = strtoul(a, &end, 16);
+ if (errno != 0 || end == a || (end[0] != ':' && end[0] != 0))
+ return NULL;
+ a = end + 1;
+ } while (++i != sizeof(o) / sizeof(o[0]) && end[0] != 0);
+
+ /* Junk at the end of line */
+ if (end[0] != 0)
+ return NULL;
+
+ /* Support the format XX:XX:XX:XX:XX:XX */
+ if (i == ETHER_ADDR_LEN) {
+ while (i-- != 0) {
+ if (o[i] > UINT8_MAX)
+ return NULL;
+ ether_addr.addr_bytes[i] = (uint8_t)o[i];
+ }
+ /* Support the format XXXX:XXXX:XXXX */
+ } else if (i == ETHER_ADDR_LEN / 2) {
+ while (i-- != 0) {
+ if (o[i] > UINT16_MAX)
+ return NULL;
+ ether_addr.addr_bytes[i * 2] = (uint8_t)(o[i] >> 8);
+ ether_addr.addr_bytes[i * 2 + 1] = (uint8_t)(o[i] & 0xff);
+ }
+ /* unknown format */
+ } else
+ return NULL;
+
+ return (struct ether_addr *)&ether_addr;
+}
+
+int
+softnic_parse_ipv4_addr(const char *token, struct in_addr *ipv4)
+{
+ if (strlen(token) >= INET_ADDRSTRLEN)
+ return -EINVAL;
+
+ if (inet_pton4(token, (unsigned char *)ipv4) != 1)
+ return -EINVAL;
+
+ return 0;
+}
+
+int
+softnic_parse_ipv6_addr(const char *token, struct in6_addr *ipv6)
+{
+ if (strlen(token) >= INET6_ADDRSTRLEN)
+ return -EINVAL;
+
+ if (inet_pton6(token, (unsigned char *)ipv6) != 1)
+ return -EINVAL;
+
+ return 0;
+}
+
+int
+softnic_parse_mac_addr(const char *token, struct ether_addr *addr)
+{
+ struct ether_addr *tmp;
+
+ tmp = my_ether_aton(token);
+ if (tmp == NULL)
+ return -1;
+
+ memcpy(addr, tmp, sizeof(struct ether_addr));
+ return 0;
+}
+
+int
+softnic_parse_cpu_core(const char *entry,
+ struct softnic_cpu_core_params *p)
+{
+ size_t num_len;
+ char num[8];
+
+ uint32_t s = 0, c = 0, h = 0, val;
+ uint8_t s_parsed = 0, c_parsed = 0, h_parsed = 0;
+ const char *next = skip_white_spaces(entry);
+ char type;
+
+ if (p == NULL)
+ return -EINVAL;
+
+ /* Expect <CORE> or [sX][cY][h]. At least one parameter is required. */
+ while (*next != '\0') {
+ /* If everything parsed nothing should left */
+ if (s_parsed && c_parsed && h_parsed)
+ return -EINVAL;
+
+ type = *next;
+ switch (type) {
+ case 's':
+ case 'S':
+ if (s_parsed || c_parsed || h_parsed)
+ return -EINVAL;
+ s_parsed = 1;
+ next++;
+ break;
+ case 'c':
+ case 'C':
+ if (c_parsed || h_parsed)
+ return -EINVAL;
+ c_parsed = 1;
+ next++;
+ break;
+ case 'h':
+ case 'H':
+ if (h_parsed)
+ return -EINVAL;
+ h_parsed = 1;
+ next++;
+ break;
+ default:
+ /* If it start from digit it must be only core id. */
+ if (!isdigit(*next) || s_parsed || c_parsed || h_parsed)
+ return -EINVAL;
+
+ type = 'C';
+ }
+
+ for (num_len = 0; *next != '\0'; next++, num_len++) {
+ if (num_len == RTE_DIM(num))
+ return -EINVAL;
+
+ if (!isdigit(*next))
+ break;
+
+ num[num_len] = *next;
+ }
+
+ if (num_len == 0 && type != 'h' && type != 'H')
+ return -EINVAL;
+
+ if (num_len != 0 && (type == 'h' || type == 'H'))
+ return -EINVAL;
+
+ num[num_len] = '\0';
+ val = strtol(num, NULL, 10);
+
+ h = 0;
+ switch (type) {
+ case 's':
+ case 'S':
+ s = val;
+ break;
+ case 'c':
+ case 'C':
+ c = val;
+ break;
+ case 'h':
+ case 'H':
+ h = 1;
+ break;
+ }
+ }
+
+ p->socket_id = s;
+ p->core_id = c;
+ p->thread_id = h;
+ return 0;
+}