From: Owen Hilyard <ohily...@iol.unh.edu>

As of right now, this is a fairly direct port. As such, most of the main
file from test-acl is present in api_impl.cc. If this proof of concept
is going to expand into a usable application, the acl test helper can be
moved to another file to help keep the service definition file clean.
The header file must remain a C header file in order to be able to be
included in the main file. At this point, the main file is just a stub
that starts the RPC server, but I have left it so that any extensions
can be written in C and the C++ parts of this app can be easily
encapsulated.

Signed-off-by: Owen Hilyard <ohily...@iol.unh.edu>
---
 app/test-pmd-api/api_impl.cc | 1160 ++++++++++++++++++++++++++++++++++
 app/test-pmd-api/api_impl.h  |   10 +
 app/test-pmd-api/main.c      |   11 +
 3 files changed, 1181 insertions(+)
 create mode 100644 app/test-pmd-api/api_impl.cc
 create mode 100644 app/test-pmd-api/api_impl.h
 create mode 100644 app/test-pmd-api/main.c

diff --git a/app/test-pmd-api/api_impl.cc b/app/test-pmd-api/api_impl.cc
new file mode 100644
index 0000000000..6972172598
--- /dev/null
+++ b/app/test-pmd-api/api_impl.cc
@@ -0,0 +1,1160 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ * Copyright(c) 2022 University of New Hampshire
+ */
+
+#include <rte_string_fns.h>
+#include <rte_acl.h>
+#include <getopt.h>
+#include <string.h>
+
+#include <rte_cycles.h>
+#include <rte_per_lcore.h>
+#include <rte_lcore.h>
+#include <rte_ip.h>
+
+#include "api.pb.h"
+#include "api.grpc.pb.h"
+
+/*
+C++ includes
+*/
+#include <string>
+#include <vector>
+#include <grpcpp/ext/proto_server_reflection_plugin.h>
+#include <grpcpp/grpcpp.h>
+#include <grpcpp/health_check_service_interface.h>
+
+#define PRINT_USAGE_START "%s [EAL options] --\n"
+
+#define RTE_LOGTYPE_TESTACL RTE_LOGTYPE_USER1
+
+#define APP_NAME "TESTACL"
+
+#define GET_CB_FIELD(in, fd, base, lim, dlm)                                   
\
+    do {                                                                   \
+        unsigned long val;                                             \
+        char *end_fld;                                                 \
+        errno = 0;                                                     \
+        val = strtoul((in), &end_fld, (base));                         \
+        if (errno != 0 || end_fld[0] != (dlm) || val > (lim))          \
+            return -EINVAL;                                        \
+        (fd) = (typeof(fd))val;                                        \
+        (in) = end_fld + 1;                                            \
+    } while (0)
+
+#define OPT_RULE_FILE "rulesf"
+#define OPT_TRACE_FILE "tracef"
+#define OPT_RULE_NUM "rulenum"
+#define OPT_TRACE_NUM "tracenum"
+#define OPT_TRACE_STEP "tracestep"
+#define OPT_SEARCH_ALG "alg"
+#define OPT_BLD_CATEGORIES "bldcat"
+#define OPT_RUN_CATEGORIES "runcat"
+#define OPT_MAX_SIZE "maxsize"
+#define OPT_ITER_NUM "iter"
+#define OPT_VERBOSE "verbose"
+#define OPT_IPV6 "ipv6"
+
+#define TRACE_DEFAULT_NUM 0x10000
+#define TRACE_STEP_MAX 0x1000
+#define TRACE_STEP_DEF 0x100
+
+#define RULE_NUM 0x10000
+
+#define COMMENT_LEAD_CHAR '#'
+
+enum {
+       DUMP_NONE, DUMP_SEARCH, DUMP_PKT, DUMP_MAX
+};
+
+struct acl_alg {
+       const char *name;
+       enum rte_acl_classify_alg alg;
+};
+
+static const struct acl_alg acl_alg[] = {
+               {
+                               .name = "scalar",
+                               .alg = RTE_ACL_CLASSIFY_SCALAR,
+               },
+               {
+                               .name = "sse",
+                               .alg = RTE_ACL_CLASSIFY_SSE,
+               },
+               {
+                               .name = "avx2",
+                               .alg = RTE_ACL_CLASSIFY_AVX2,
+               },
+               {
+                               .name = "neon",
+                               .alg = RTE_ACL_CLASSIFY_NEON,
+               },
+               {
+                               .name = "altivec",
+                               .alg = RTE_ACL_CLASSIFY_ALTIVEC,
+               },
+               {
+                               .name = "avx512x16",
+                               .alg = RTE_ACL_CLASSIFY_AVX512X16,
+               },
+               {
+                               .name = "avx512x32",
+                               .alg = RTE_ACL_CLASSIFY_AVX512X32,
+               },
+};
+
+static struct {
+       const char *prgname;
+       const char *rule_file;
+       const char *trace_file;
+       size_t max_size;
+       uint32_t bld_categories;
+       uint32_t run_categories;
+       uint32_t nb_rules;
+       uint32_t nb_traces;
+       uint32_t trace_step;
+       uint32_t trace_sz;
+       uint32_t iter_num;
+       uint32_t verbose;
+       uint32_t ipv6;
+       struct acl_alg alg;
+       uint32_t used_traces;
+       void *traces;
+       struct rte_acl_ctx *acx;
+} config = {
+               .prgname = NULL,
+               .rule_file = NULL,
+               .trace_file = NULL,
+               .max_size = 0,
+               .bld_categories = 3,
+               .run_categories = 1,
+               .nb_rules = RULE_NUM,
+               .nb_traces = TRACE_DEFAULT_NUM,
+               .trace_step = TRACE_STEP_DEF,
+               .trace_sz = 0,
+               .iter_num = 1,
+               .verbose = DUMP_MAX,
+               .ipv6 = 0,
+               .alg = {
+                               .name = "default",
+                               .alg = RTE_ACL_CLASSIFY_DEFAULT,
+               },
+               .used_traces = 0,
+               .traces = NULL,
+               .acx = NULL,
+};
+
+static struct rte_acl_param prm = {
+               .name = APP_NAME,
+               .socket_id = SOCKET_ID_ANY,
+               .rule_size = 0,
+               .max_rule_num = 0,
+};
+
+/*
+ * Rule and trace formats definitions.
+ */
+
+struct ipv4_5tuple {
+       uint8_t proto;
+       uint32_t ip_src;
+       uint32_t ip_dst;
+       uint16_t port_src;
+       uint16_t port_dst;
+};
+
+enum {
+       PROTO_FIELD_IPV4,
+       SRC_FIELD_IPV4,
+       DST_FIELD_IPV4,
+       SRCP_FIELD_IPV4,
+       DSTP_FIELD_IPV4,
+       NUM_FIELDS_IPV4
+};
+
+/*
+ * That effectively defines order of IPV4VLAN classifications:
+ *  - PROTO
+ *  - VLAN (TAG and DOMAIN)
+ *  - SRC IP ADDRESS
+ *  - DST IP ADDRESS
+ *  - PORTS (SRC and DST)
+ */
+enum {
+       RTE_ACL_IPV4VLAN_PROTO,
+       RTE_ACL_IPV4VLAN_VLAN,
+       RTE_ACL_IPV4VLAN_SRC,
+       RTE_ACL_IPV4VLAN_DST,
+       RTE_ACL_IPV4VLAN_PORTS,
+       RTE_ACL_IPV4VLAN_NUM
+};
+
+struct rte_acl_field_def ipv4_defs[NUM_FIELDS_IPV4] = {
+               {
+                               .type = RTE_ACL_FIELD_TYPE_BITMASK,
+                               .size = sizeof(uint8_t),
+                               .field_index = PROTO_FIELD_IPV4,
+                               .input_index = RTE_ACL_IPV4VLAN_PROTO,
+                               .offset = offsetof(struct ipv4_5tuple, proto),
+               },
+               {
+                               .type = RTE_ACL_FIELD_TYPE_MASK,
+                               .size = sizeof(uint32_t),
+                               .field_index = SRC_FIELD_IPV4,
+                               .input_index = RTE_ACL_IPV4VLAN_SRC,
+                               .offset = offsetof(struct ipv4_5tuple, ip_src),
+               },
+               {
+                               .type = RTE_ACL_FIELD_TYPE_MASK,
+                               .size = sizeof(uint32_t),
+                               .field_index = DST_FIELD_IPV4,
+                               .input_index = RTE_ACL_IPV4VLAN_DST,
+                               .offset = offsetof(struct ipv4_5tuple, ip_dst),
+               },
+               {
+                               .type = RTE_ACL_FIELD_TYPE_RANGE,
+                               .size = sizeof(uint16_t),
+                               .field_index = SRCP_FIELD_IPV4,
+                               .input_index = RTE_ACL_IPV4VLAN_PORTS,
+                               .offset = offsetof(struct ipv4_5tuple, 
port_src),
+               },
+               {
+                               .type = RTE_ACL_FIELD_TYPE_RANGE,
+                               .size = sizeof(uint16_t),
+                               .field_index = DSTP_FIELD_IPV4,
+                               .input_index = RTE_ACL_IPV4VLAN_PORTS,
+                               .offset = offsetof(struct ipv4_5tuple, 
port_dst),
+               },
+};
+
+#define IPV6_ADDR_LEN 16
+#define IPV6_ADDR_U16 (IPV6_ADDR_LEN / sizeof(uint16_t))
+#define IPV6_ADDR_U32 (IPV6_ADDR_LEN / sizeof(uint32_t))
+
+struct ipv6_5tuple {
+       uint8_t proto;
+       uint32_t ip_src[IPV6_ADDR_U32];
+       uint32_t ip_dst[IPV6_ADDR_U32];
+       uint16_t port_src;
+       uint16_t port_dst;
+};
+
+enum {
+       PROTO_FIELD_IPV6,
+       SRC1_FIELD_IPV6,
+       SRC2_FIELD_IPV6,
+       SRC3_FIELD_IPV6,
+       SRC4_FIELD_IPV6,
+       DST1_FIELD_IPV6,
+       DST2_FIELD_IPV6,
+       DST3_FIELD_IPV6,
+       DST4_FIELD_IPV6,
+       SRCP_FIELD_IPV6,
+       DSTP_FIELD_IPV6,
+       NUM_FIELDS_IPV6
+};
+
+struct rte_acl_field_def ipv6_defs[NUM_FIELDS_IPV6] = {
+               {
+                               .type = RTE_ACL_FIELD_TYPE_BITMASK,
+                               .size = sizeof(uint8_t),
+                               .field_index = PROTO_FIELD_IPV6,
+                               .input_index = PROTO_FIELD_IPV6,
+                               .offset = offsetof(struct ipv6_5tuple, proto),
+               },
+               {
+                               .type = RTE_ACL_FIELD_TYPE_MASK,
+                               .size = sizeof(uint32_t),
+                               .field_index = SRC1_FIELD_IPV6,
+                               .input_index = SRC1_FIELD_IPV6,
+                               .offset = offsetof(struct ipv6_5tuple, 
ip_src[0]),
+               },
+               {
+                               .type = RTE_ACL_FIELD_TYPE_MASK,
+                               .size = sizeof(uint32_t),
+                               .field_index = SRC2_FIELD_IPV6,
+                               .input_index = SRC2_FIELD_IPV6,
+                               .offset = offsetof(struct ipv6_5tuple, 
ip_src[1]),
+               },
+               {
+                               .type = RTE_ACL_FIELD_TYPE_MASK,
+                               .size = sizeof(uint32_t),
+                               .field_index = SRC3_FIELD_IPV6,
+                               .input_index = SRC3_FIELD_IPV6,
+                               .offset = offsetof(struct ipv6_5tuple, 
ip_src[2]),
+               },
+               {
+                               .type = RTE_ACL_FIELD_TYPE_MASK,
+                               .size = sizeof(uint32_t),
+                               .field_index = SRC4_FIELD_IPV6,
+                               .input_index = SRC4_FIELD_IPV6,
+                               .offset = offsetof(struct ipv6_5tuple, 
ip_src[3]),
+               },
+               {
+                               .type = RTE_ACL_FIELD_TYPE_MASK,
+                               .size = sizeof(uint32_t),
+                               .field_index = DST1_FIELD_IPV6,
+                               .input_index = DST1_FIELD_IPV6,
+                               .offset = offsetof(struct ipv6_5tuple, 
ip_dst[0]),
+               },
+               {
+                               .type = RTE_ACL_FIELD_TYPE_MASK,
+                               .size = sizeof(uint32_t),
+                               .field_index = DST2_FIELD_IPV6,
+                               .input_index = DST2_FIELD_IPV6,
+                               .offset = offsetof(struct ipv6_5tuple, 
ip_dst[1]),
+               },
+               {
+                               .type = RTE_ACL_FIELD_TYPE_MASK,
+                               .size = sizeof(uint32_t),
+                               .field_index = DST3_FIELD_IPV6,
+                               .input_index = DST3_FIELD_IPV6,
+                               .offset = offsetof(struct ipv6_5tuple, 
ip_dst[2]),
+               },
+               {
+                               .type = RTE_ACL_FIELD_TYPE_MASK,
+                               .size = sizeof(uint32_t),
+                               .field_index = DST4_FIELD_IPV6,
+                               .input_index = DST4_FIELD_IPV6,
+                               .offset = offsetof(struct ipv6_5tuple, 
ip_dst[3]),
+               },
+               {
+                               .type = RTE_ACL_FIELD_TYPE_RANGE,
+                               .size = sizeof(uint16_t),
+                               .field_index = SRCP_FIELD_IPV6,
+                               .input_index = SRCP_FIELD_IPV6,
+                               .offset = offsetof(struct ipv6_5tuple, 
port_src),
+               },
+               {
+                               .type = RTE_ACL_FIELD_TYPE_RANGE,
+                               .size = sizeof(uint16_t),
+                               .field_index = DSTP_FIELD_IPV6,
+                               .input_index = SRCP_FIELD_IPV6,
+                               .offset = offsetof(struct ipv6_5tuple, 
port_dst),
+               },
+};
+
+enum {
+       CB_FLD_SRC_ADDR,
+       CB_FLD_DST_ADDR,
+       CB_FLD_SRC_PORT_LOW,
+       CB_FLD_SRC_PORT_DLM,
+       CB_FLD_SRC_PORT_HIGH,
+       CB_FLD_DST_PORT_LOW,
+       CB_FLD_DST_PORT_DLM,
+       CB_FLD_DST_PORT_HIGH,
+       CB_FLD_PROTO,
+       CB_FLD_NUM,
+};
+
+enum {
+       CB_TRC_SRC_ADDR,
+       CB_TRC_DST_ADDR,
+       CB_TRC_SRC_PORT,
+       CB_TRC_DST_PORT,
+       CB_TRC_PROTO,
+       CB_TRC_NUM,
+};
+
+RTE_ACL_RULE_DEF(acl_rule, RTE_ACL_MAX_FIELDS);
+
+static const char cb_port_delim[] = ":";
+
+static char line[LINE_MAX];
+
+#define dump_verbose(lvl, fh, fmt, args...)                                    
\
+    do {                                                                   \
+        if ((lvl) <= (int32_t)config.verbose)                          \
+            fprintf(fh, fmt, ##args);                              \
+    } while (0)
+
+/*
+ * Parse ClassBench input trace (test vectors and expected results) file.
+ * Expected format:
+ * <src_ipv4_addr> <space> <dst_ipv4_addr> <space> \
+ * <src_port> <space> <dst_port> <space> <proto>
+ */
+static int parse_cb_ipv4_trace(char *str, struct ipv4_5tuple *v) {
+       int i;
+       char *s, *sp, *in[CB_TRC_NUM];
+       static const char *dlm = " \t\n";
+
+       s = str;
+       for (i = 0; i != RTE_DIM(in); i++) {
+               in[i] = strtok_r(s, dlm, &sp);
+               if (in[i] == NULL)
+                       return -EINVAL;
+               s = NULL;
+       }
+
+       GET_CB_FIELD(in[CB_TRC_SRC_ADDR], v->ip_src, 0, UINT32_MAX, 0);
+       GET_CB_FIELD(in[CB_TRC_DST_ADDR], v->ip_dst, 0, UINT32_MAX, 0);
+       GET_CB_FIELD(in[CB_TRC_SRC_PORT], v->port_src, 0, UINT16_MAX, 0);
+       GET_CB_FIELD(in[CB_TRC_DST_PORT], v->port_dst, 0, UINT16_MAX, 0);
+       GET_CB_FIELD(in[CB_TRC_PROTO], v->proto, 0, UINT8_MAX, 0);
+
+       /* convert to network byte order. */
+       v->ip_src = rte_cpu_to_be_32(v->ip_src);
+       v->ip_dst = rte_cpu_to_be_32(v->ip_dst);
+       v->port_src = rte_cpu_to_be_16(v->port_src);
+       v->port_dst = rte_cpu_to_be_16(v->port_dst);
+
+       return 0;
+}
+
+/*
+ * Parse IPv6 address, expects the following format:
+ * XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX (where X is a hexadecimal digit).
+ */
+static int parse_ipv6_addr(const char *in, const char **end,
+                           uint32_t v[IPV6_ADDR_U32], char dlm) {
+       uint32_t addr[IPV6_ADDR_U16];
+
+       GET_CB_FIELD(in, addr[0], 16, UINT16_MAX, ':');
+       GET_CB_FIELD(in, addr[1], 16, UINT16_MAX, ':');
+       GET_CB_FIELD(in, addr[2], 16, UINT16_MAX, ':');
+       GET_CB_FIELD(in, addr[3], 16, UINT16_MAX, ':');
+       GET_CB_FIELD(in, addr[4], 16, UINT16_MAX, ':');
+       GET_CB_FIELD(in, addr[5], 16, UINT16_MAX, ':');
+       GET_CB_FIELD(in, addr[6], 16, UINT16_MAX, ':');
+       GET_CB_FIELD(in, addr[7], 16, UINT16_MAX, dlm);
+
+       *end = in;
+
+       v[0] = (addr[0] << 16) + addr[1];
+       v[1] = (addr[2] << 16) + addr[3];
+       v[2] = (addr[4] << 16) + addr[5];
+       v[3] = (addr[6] << 16) + addr[7];
+
+       return 0;
+}
+
+static int parse_cb_ipv6_addr_trace(const char *in, uint32_t v[IPV6_ADDR_U32]) 
{
+       int32_t rc;
+       const char *end;
+
+       rc = parse_ipv6_addr(in, &end, v, 0);
+       if (rc != 0)
+               return rc;
+
+       v[0] = rte_cpu_to_be_32(v[0]);
+       v[1] = rte_cpu_to_be_32(v[1]);
+       v[2] = rte_cpu_to_be_32(v[2]);
+       v[3] = rte_cpu_to_be_32(v[3]);
+
+       return 0;
+}
+
+/*
+ * Parse ClassBench input trace (test vectors and expected results) file.
+ * Expected format:
+ * <src_ipv6_addr> <space> <dst_ipv6_addr> <space> \
+ * <src_port> <space> <dst_port> <space> <proto>
+ */
+static int parse_cb_ipv6_trace(char *str, struct ipv6_5tuple *v) {
+       int32_t i, rc;
+       char *s, *sp, *in[CB_TRC_NUM];
+       static const char *dlm = " \t\n";
+
+       s = str;
+       for (i = 0; i != RTE_DIM(in); i++) {
+               in[i] = strtok_r(s, dlm, &sp);
+               if (in[i] == NULL)
+                       return -EINVAL;
+               s = NULL;
+       }
+
+       /* get ip6 src address. */
+       rc = parse_cb_ipv6_addr_trace(in[CB_TRC_SRC_ADDR], v->ip_src);
+       if (rc != 0)
+               return rc;
+
+       /* get ip6 dst address. */
+       rc = parse_cb_ipv6_addr_trace(in[CB_TRC_DST_ADDR], v->ip_dst);
+       if (rc != 0)
+               return rc;
+
+       GET_CB_FIELD(in[CB_TRC_SRC_PORT], v->port_src, 0, UINT16_MAX, 0);
+       GET_CB_FIELD(in[CB_TRC_DST_PORT], v->port_dst, 0, UINT16_MAX, 0);
+       GET_CB_FIELD(in[CB_TRC_PROTO], v->proto, 0, UINT8_MAX, 0);
+
+       /* convert to network byte order. */
+       v->port_src = rte_cpu_to_be_16(v->port_src);
+       v->port_dst = rte_cpu_to_be_16(v->port_dst);
+
+       return 0;
+}
+
+/* Bypass comment and empty lines */
+static int skip_line(const char *buf) {
+       uint32_t i;
+
+       for (i = 0; isspace(buf[i]) != 0; i++);
+
+       if (buf[i] == 0 || buf[i] == COMMENT_LEAD_CHAR)
+               return 1;
+
+       return 0;
+}
+
+static void tracef_init(void) {
+       static const char name[] = APP_NAME;
+       FILE *f;
+       size_t sz;
+       uint32_t i, k, n;
+       struct ipv4_5tuple *v;
+       struct ipv6_5tuple *w;
+
+       sz = config.nb_traces * (config.ipv6 ? sizeof(*w) : sizeof(*v));
+       config.traces = rte_zmalloc_socket(name, sz, RTE_CACHE_LINE_SIZE,
+                                          SOCKET_ID_ANY);
+       if (config.traces == NULL)
+               rte_exit(EXIT_FAILURE,
+                        "Cannot allocate %zu bytes for "
+                        "requested %u number of trace records\n",
+                        sz, config.nb_traces);
+
+       f = fopen(config.trace_file, "r");
+       if (f == NULL)
+               rte_exit(-EINVAL, "failed to open file: %s\n",
+                        config.trace_file);
+
+       v = (struct ipv4_5tuple *) config.traces;
+       w = (struct ipv6_5tuple *) config.traces;
+       k = 0;
+       n = 0;
+       for (i = 0; n != config.nb_traces; i++) {
+               if (fgets(line, sizeof(line), f) == NULL)
+                       break;
+
+               if (skip_line(line) != 0) {
+                       k++;
+                       continue;
+               }
+
+               n = i - k;
+
+               if (config.ipv6) {
+                       if (parse_cb_ipv6_trace(line, w + n) != 0)
+                               rte_exit(EXIT_FAILURE,
+                                        "%s: failed to parse ipv6 trace "
+                                        "record at line %u\n",
+                                        config.trace_file, i + 1);
+               } else {
+                       if (parse_cb_ipv4_trace(line, v + n) != 0)
+                               rte_exit(EXIT_FAILURE,
+                                        "%s: failed to parse ipv4 trace "
+                                        "record at line %u\n",
+                                        config.trace_file, i + 1);
+               }
+       }
+
+       config.used_traces = i - k;
+       fclose(f);
+}
+
+static int parse_ipv6_net(const char *in, struct rte_acl_field field[4]) {
+       int32_t rc;
+       const char *mp;
+       uint32_t i, m, v[4];
+       const uint32_t nbu32 = sizeof(uint32_t) * CHAR_BIT;
+
+       /* get address. */
+       rc = parse_ipv6_addr(in, &mp, v, '/');
+       if (rc != 0)
+               return rc;
+
+       /* get mask. */
+       GET_CB_FIELD(mp, m, 0, CHAR_BIT * sizeof(v), 0);
+
+       /* put all together. */
+       for (i = 0; i != RTE_DIM(v); i++) {
+               if (m >= (i + 1) * nbu32)
+                       field[i].mask_range.u32 = nbu32;
+               else
+                       field[i].mask_range.u32 =
+                                       m > (i * nbu32) ? m - (i * 32) : 0;
+
+               field[i].value.u32 = v[i];
+       }
+
+       return 0;
+}
+
+static int parse_cb_ipv6_rule(char *str, struct acl_rule *v) {
+       int i, rc;
+       char *s, *sp, *in[CB_FLD_NUM];
+       static const char *dlm = " \t\n";
+
+       /*
+        * Skip leading '@'
+        */
+       if (strchr(str, '@') != str)
+               return -EINVAL;
+
+       s = str + 1;
+
+       for (i = 0; i != RTE_DIM(in); i++) {
+               in[i] = strtok_r(s, dlm, &sp);
+               if (in[i] == NULL)
+                       return -EINVAL;
+               s = NULL;
+       }
+
+       rc = parse_ipv6_net(in[CB_FLD_SRC_ADDR], v->field + SRC1_FIELD_IPV6);
+       if (rc != 0) {
+               RTE_LOG(ERR, TESTACL,
+                       "failed to read source address/mask: %s\n",
+                       in[CB_FLD_SRC_ADDR]);
+               return rc;
+       }
+
+       rc = parse_ipv6_net(in[CB_FLD_DST_ADDR], v->field + DST1_FIELD_IPV6);
+       if (rc != 0) {
+               RTE_LOG(ERR, TESTACL,
+                       "failed to read destination address/mask: %s\n",
+                       in[CB_FLD_DST_ADDR]);
+               return rc;
+       }
+
+       /* source port. */
+       GET_CB_FIELD(in[CB_FLD_SRC_PORT_LOW],
+                    v->field[SRCP_FIELD_IPV6].value.u16, 0, UINT16_MAX, 0);
+       GET_CB_FIELD(in[CB_FLD_SRC_PORT_HIGH],
+                    v->field[SRCP_FIELD_IPV6].mask_range.u16, 0, UINT16_MAX,
+                    0);
+
+       if (strncmp(in[CB_FLD_SRC_PORT_DLM], cb_port_delim,
+                   sizeof(cb_port_delim)) != 0)
+               return -EINVAL;
+
+       /* destination port. */
+       GET_CB_FIELD(in[CB_FLD_DST_PORT_LOW],
+                    v->field[DSTP_FIELD_IPV6].value.u16, 0, UINT16_MAX, 0);
+       GET_CB_FIELD(in[CB_FLD_DST_PORT_HIGH],
+                    v->field[DSTP_FIELD_IPV6].mask_range.u16, 0, UINT16_MAX,
+                    0);
+
+       if (strncmp(in[CB_FLD_DST_PORT_DLM], cb_port_delim,
+                   sizeof(cb_port_delim)) != 0)
+               return -EINVAL;
+
+       GET_CB_FIELD(in[CB_FLD_PROTO], v->field[PROTO_FIELD_IPV6].value.u8, 0,
+                    UINT8_MAX, '/');
+       GET_CB_FIELD(in[CB_FLD_PROTO], v->field[PROTO_FIELD_IPV6].mask_range.u8,
+                    0, UINT8_MAX, 0);
+
+       return 0;
+}
+
+static int parse_ipv4_net(const char *in, uint32_t *addr, uint32_t *mask_len) {
+       uint8_t a, b, c, d, m;
+
+       GET_CB_FIELD(in, a, 0, UINT8_MAX, '.');
+       GET_CB_FIELD(in, b, 0, UINT8_MAX, '.');
+       GET_CB_FIELD(in, c, 0, UINT8_MAX, '.');
+       GET_CB_FIELD(in, d, 0, UINT8_MAX, '/');
+       GET_CB_FIELD(in, m, 0, sizeof(uint32_t) * CHAR_BIT, 0);
+
+       addr[0] = RTE_IPV4(a, b, c, d);
+       mask_len[0] = m;
+
+       return 0;
+}
+
+/*
+ * Parse ClassBench rules file.
+ * Expected format:
+ * '@'<src_ipv4_addr>'/'<masklen> <space> \
+ * <dst_ipv4_addr>'/'<masklen> <space> \
+ * <src_port_low> <space> ":" <src_port_high> <space> \
+ * <dst_port_low> <space> ":" <dst_port_high> <space> \
+ * <proto>'/'<mask>
+ */
+static int parse_cb_ipv4_rule(char *str, struct acl_rule *v) {
+       int i, rc;
+       char *s, *sp, *in[CB_FLD_NUM];
+       static const char *dlm = " \t\n";
+
+       /*
+        * Skip leading '@'
+        */
+       if (strchr(str, '@') != str)
+               return -EINVAL;
+
+       s = str + 1;
+
+       for (i = 0; i != RTE_DIM(in); i++) {
+               in[i] = strtok_r(s, dlm, &sp);
+               if (in[i] == NULL)
+                       return -EINVAL;
+               s = NULL;
+       }
+
+       rc = parse_ipv4_net(in[CB_FLD_SRC_ADDR],
+                           &v->field[SRC_FIELD_IPV4].value.u32,
+                           &v->field[SRC_FIELD_IPV4].mask_range.u32);
+       if (rc != 0) {
+               RTE_LOG(ERR, TESTACL,
+                       "failed to read source address/mask: %s\n",
+                       in[CB_FLD_SRC_ADDR]);
+               return rc;
+       }
+
+       rc = parse_ipv4_net(in[CB_FLD_DST_ADDR],
+                           &v->field[DST_FIELD_IPV4].value.u32,
+                           &v->field[DST_FIELD_IPV4].mask_range.u32);
+       if (rc != 0) {
+               RTE_LOG(ERR, TESTACL,
+                       "failed to read destination address/mask: %s\n",
+                       in[CB_FLD_DST_ADDR]);
+               return rc;
+       }
+
+       /* source port. */
+       GET_CB_FIELD(in[CB_FLD_SRC_PORT_LOW],
+                    v->field[SRCP_FIELD_IPV4].value.u16, 0, UINT16_MAX, 0);
+       GET_CB_FIELD(in[CB_FLD_SRC_PORT_HIGH],
+                    v->field[SRCP_FIELD_IPV4].mask_range.u16, 0, UINT16_MAX,
+                    0);
+
+       if (strncmp(in[CB_FLD_SRC_PORT_DLM], cb_port_delim,
+                   sizeof(cb_port_delim)) != 0)
+               return -EINVAL;
+
+       /* destination port. */
+       GET_CB_FIELD(in[CB_FLD_DST_PORT_LOW],
+                    v->field[DSTP_FIELD_IPV4].value.u16, 0, UINT16_MAX, 0);
+       GET_CB_FIELD(in[CB_FLD_DST_PORT_HIGH],
+                    v->field[DSTP_FIELD_IPV4].mask_range.u16, 0, UINT16_MAX,
+                    0);
+
+       if (strncmp(in[CB_FLD_DST_PORT_DLM], cb_port_delim,
+                   sizeof(cb_port_delim)) != 0)
+               return -EINVAL;
+
+       GET_CB_FIELD(in[CB_FLD_PROTO], v->field[PROTO_FIELD_IPV4].value.u8, 0,
+                    UINT8_MAX, '/');
+       GET_CB_FIELD(in[CB_FLD_PROTO], v->field[PROTO_FIELD_IPV4].mask_range.u8,
+                    0, UINT8_MAX, 0);
+
+       return 0;
+}
+
+typedef int (*parse_5tuple)(char *text, struct acl_rule *rule);
+
+static int add_cb_rules(FILE *f, struct rte_acl_ctx *ctx) {
+       int rc;
+       uint32_t i, k, n;
+       struct acl_rule v;
+       parse_5tuple parser;
+
+       memset(&v, 0, sizeof(v));
+       parser = (config.ipv6 != 0) ? parse_cb_ipv6_rule : parse_cb_ipv4_rule;
+
+       k = 0;
+       for (i = 1; fgets(line, sizeof(line), f) != NULL; i++) {
+               if (skip_line(line) != 0) {
+                       k++;
+                       continue;
+               }
+
+               n = i - k;
+               rc = parser(line, &v);
+               if (rc != 0) {
+                       RTE_LOG(ERR, TESTACL,
+                               "line %u: parse_cb_ipv4vlan_rule"
+                               " failed, error code: %d (%s)\n",
+                               i, rc, strerror(-rc));
+                       return rc;
+               }
+
+               v.data.category_mask = RTE_LEN2MASK(
+                               RTE_ACL_MAX_CATEGORIES, 
typeof(v.data.category_mask));
+               v.data.priority = RTE_ACL_MAX_PRIORITY - n;
+               v.data.userdata = n;
+
+               rc = rte_acl_add_rules(ctx, (struct rte_acl_rule *) &v, 1);
+               if (rc != 0) {
+                       RTE_LOG(ERR, TESTACL,
+                               "line %u: failed to add rules "
+                               "into ACL context, error code: %d (%s)\n",
+                               i, rc, strerror(-rc));
+                       return rc;
+               }
+       }
+
+       return 0;
+}
+
+static void acx_init(void) {
+       int ret;
+       FILE *f;
+       struct rte_acl_config cfg;
+
+       memset(&cfg, 0, sizeof(cfg));
+
+       /* setup ACL build config. */
+       if (config.ipv6) {
+               cfg.num_fields = RTE_DIM(ipv6_defs);
+               memcpy(&cfg.defs, ipv6_defs, sizeof(ipv6_defs));
+       } else {
+               cfg.num_fields = RTE_DIM(ipv4_defs);
+               memcpy(&cfg.defs, ipv4_defs, sizeof(ipv4_defs));
+       }
+       cfg.num_categories = config.bld_categories;
+       cfg.max_size = config.max_size;
+
+       /* setup ACL creation parameters. */
+       prm.rule_size = RTE_ACL_RULE_SZ(cfg.num_fields);
+       prm.max_rule_num = config.nb_rules;
+
+       config.acx = rte_acl_create(&prm);
+       if (config.acx == NULL)
+               rte_exit(rte_errno, "failed to create ACL context\n");
+
+       /* set default classify method for this context. */
+       if (config.alg.alg != RTE_ACL_CLASSIFY_DEFAULT) {
+               ret = rte_acl_set_ctx_classify(config.acx, config.alg.alg);
+               if (ret != 0)
+                       rte_exit(ret,
+                                "failed to setup %s method "
+                                "for ACL context\n",
+                                config.alg.name);
+       }
+
+       /* add ACL rules. */
+       f = fopen(config.rule_file, "r");
+       if (f == NULL)
+               rte_exit(-EINVAL, "failed to open file %s\n", config.rule_file);
+
+       ret = add_cb_rules(f, config.acx);
+       if (ret != 0)
+               rte_exit(ret, "failed to add rules into ACL context\n");
+
+       fclose(f);
+
+       /* perform build. */
+       ret = rte_acl_build(config.acx, &cfg);
+
+       dump_verbose(DUMP_NONE, stdout, "rte_acl_build(%u) finished with %d\n",
+                    config.bld_categories, ret);
+
+       rte_acl_dump(config.acx);
+
+       if (ret != 0)
+               rte_exit(ret, "failed to build search context\n");
+}
+
+static uint32_t search_ip5tuples_once(uint32_t categories, uint32_t step,
+                                      const char *alg) {
+       int ret;
+       uint32_t i, j, k, n, r;
+       const uint8_t *data[step], *v;
+       uint32_t results[step * categories];
+
+       v = (const uint8_t *) config.traces;
+       for (i = 0; i != config.used_traces; i += n) {
+               n = RTE_MIN(step, config.used_traces - i);
+
+               for (j = 0; j != n; j++) {
+                       data[j] = v;
+                       v += config.trace_sz;
+               }
+
+               ret = rte_acl_classify(config.acx, data, results, n,
+                                      categories);
+
+               if (ret != 0)
+                       rte_exit(ret, "classify for ipv%c_5tuples returns %d\n",
+                                config.ipv6 ? '6' : '4', ret);
+
+               for (r = 0, j = 0; j != n; j++) {
+                       for (k = 0; k != categories; k++, r++) {
+                               dump_verbose(DUMP_PKT, stdout,
+                                            "ipv%c_5tuple: %u, category: %u, "
+                                            "result: %u\n",
+                                            config.ipv6 ? '6' : '4', i + j + 1,
+                                            k, results[r] - 1);
+                       }
+               }
+       }
+
+       dump_verbose(DUMP_SEARCH, stdout, "%s(%u, %u, %s) returns %u\n",
+                    __func__, categories, step, alg, i);
+       return i;
+}
+
+static int search_ip5tuples(__rte_unused void *arg) {
+       uint64_t pkt, start, tm;
+       uint32_t i, lcore;
+       long double st;
+
+       lcore = rte_lcore_id();
+       start = rte_rdtsc_precise();
+       pkt = 0;
+
+       for (i = 0; i != config.iter_num; i++) {
+               pkt += search_ip5tuples_once(config.run_categories,
+                                            config.trace_step,
+                                            config.alg.name);
+       }
+
+       tm = rte_rdtsc_precise() - start;
+
+       st = (long double) tm / rte_get_timer_hz();
+       dump_verbose(DUMP_NONE, stdout,
+                    "%s  @lcore %u: %" PRIu32 " iterations, %" PRIu64
+                                    " pkts, %" PRIu32 " categories, %" PRIu64
+                                    " cycles (%.2Lf sec), "
+                                    "%.2Lf cycles/pkt, %.2Lf pkt/sec\n",
+                    __func__, lcore, i, pkt, config.run_categories, tm, st,
+                    (pkt == 0) ? 0 : (long double) tm / pkt, pkt / st);
+
+       return 0;
+}
+
+static unsigned long get_ulong_opt(const char *opt, const char *name,
+                                   size_t min, size_t max) {
+       unsigned long val;
+       char *end;
+
+       errno = 0;
+       val = strtoul(opt, &end, 0);
+       if (errno != 0 || end[0] != 0 || val > max || val < min)
+               rte_exit(-EINVAL, "invalid value: \"%s\" for option: %s\n", opt,
+                        name);
+       return val;
+}
+
+static void get_alg_opt(const char *opt, const char *name) {
+       uint32_t i;
+
+       for (i = 0; i != RTE_DIM(acl_alg); i++) {
+               if (strcmp(opt, acl_alg[i].name) == 0) {
+                       config.alg = acl_alg[i];
+                       return;
+               }
+       }
+
+       rte_exit(-EINVAL, "invalid value: \"%s\" for option: %s\n", opt, name);
+}
+
+static void print_usage(const char *prgname) {
+       uint32_t i, n, rc;
+       char buf[PATH_MAX];
+
+       n = 0;
+       buf[0] = 0;
+
+       for (i = 0; i < RTE_DIM(acl_alg) - 1; i++) {
+               rc = snprintf(buf + n, sizeof(buf) - n, "%s|", acl_alg[i].name);
+               if (rc > sizeof(buf) - n)
+                       break;
+               n += rc;
+       }
+
+       strlcpy(buf + n, acl_alg[i].name, sizeof(buf) - n);
+
+       fprintf(stdout,
+               PRINT_USAGE_START
+               "--" OPT_RULE_FILE "=<rules set file>\n"
+               "[--" OPT_TRACE_FILE "=<input traces file>]\n"
+               "[--" OPT_RULE_NUM
+               "=<maximum number of rules for ACL context>]\n"
+               "[--" OPT_TRACE_NUM
+               "=<number of traces to read binary file in>]\n"
+               "[--" OPT_TRACE_STEP
+               "=<number of traces to classify per one call>]\n"
+               "[--" OPT_BLD_CATEGORIES
+               "=<number of categories to build with>]\n"
+               "[--" OPT_RUN_CATEGORIES "=<number of categories to run with> "
+               "should be either 1 or multiple of %zu, "
+               "but not greater then %u]\n"
+               "[--" OPT_MAX_SIZE
+               "=<size limit (in bytes) for runtime ACL structures> "
+               "leave 0 for default behaviour]\n"
+               "[--" OPT_ITER_NUM "=<number of iterations to perform>]\n"
+               "[--" OPT_VERBOSE "=<verbose level>]\n"
+               "[--" OPT_SEARCH_ALG "=%s]\n"
+               "[--" OPT_IPV6 "=<IPv6 rules and trace files>]\n",
+               prgname, RTE_ACL_RESULTS_MULTIPLIER,
+               (uint32_t) RTE_ACL_MAX_CATEGORIES, buf);
+}
+
+static void dump_config(FILE *f) {
+       fprintf(f, "%s:\n", __func__);
+       fprintf(f, "%s:%s\n", OPT_RULE_FILE, config.rule_file);
+       fprintf(f, "%s:%s\n", OPT_TRACE_FILE, config.trace_file);
+       fprintf(f, "%s:%u\n", OPT_RULE_NUM, config.nb_rules);
+       fprintf(f, "%s:%u\n", OPT_TRACE_NUM, config.nb_traces);
+       fprintf(f, "%s:%u\n", OPT_TRACE_STEP, config.trace_step);
+       fprintf(f, "%s:%u\n", OPT_BLD_CATEGORIES, config.bld_categories);
+       fprintf(f, "%s:%u\n", OPT_RUN_CATEGORIES, config.run_categories);
+       fprintf(f, "%s:%zu\n", OPT_MAX_SIZE, config.max_size);
+       fprintf(f, "%s:%u\n", OPT_ITER_NUM, config.iter_num);
+       fprintf(f, "%s:%u\n", OPT_VERBOSE, config.verbose);
+       fprintf(f, "%s:%u(%s)\n", OPT_SEARCH_ALG, config.alg.alg,
+               config.alg.name);
+       fprintf(f, "%s:%u\n", OPT_IPV6, config.ipv6);
+}
+
+static void check_config(void) {
+       if (config.rule_file == NULL) {
+               print_usage(config.prgname);
+               rte_exit(-EINVAL, "mandatory option %s is not specified\n",
+                        OPT_RULE_FILE);
+       }
+}
+
+static void get_input_opts(int argc, char **argv) {
+       static struct option lgopts[] = {{OPT_RULE_FILE,      1, 0, 0},
+                                        {OPT_TRACE_FILE,     1, 0, 0},
+                                        {OPT_TRACE_NUM,      1, 0, 0},
+                                        {OPT_RULE_NUM,       1, 0, 0},
+                                        {OPT_MAX_SIZE,       1, 0, 0},
+                                        {OPT_TRACE_STEP,     1, 0, 0},
+                                        {OPT_BLD_CATEGORIES, 1, 0, 0},
+                                        {OPT_RUN_CATEGORIES, 1, 0, 0},
+                                        {OPT_ITER_NUM,       1, 0, 0},
+                                        {OPT_VERBOSE,        1, 0, 0},
+                                        {OPT_SEARCH_ALG,     1, 0, 0},
+                                        {OPT_IPV6,           0, 0, 0},
+                                        {NULL,               0, 0, 0}};
+
+       int opt, opt_idx;
+
+       while ((opt = getopt_long(argc, argv, "", lgopts, &opt_idx)) != EOF) {
+               if (opt != 0) {
+                       print_usage(config.prgname);
+                       rte_exit(-EINVAL, "unknown option: %c", opt);
+               }
+
+               if (strcmp(lgopts[opt_idx].name, OPT_RULE_FILE) == 0) {
+                       config.rule_file = optarg;
+               } else if (strcmp(lgopts[opt_idx].name, OPT_TRACE_FILE) == 0) {
+                       config.trace_file = optarg;
+               } else if (strcmp(lgopts[opt_idx].name, OPT_RULE_NUM) == 0) {
+                       config.nb_rules =
+                                       get_ulong_opt(optarg, 
lgopts[opt_idx].name, 1,
+                                                     RTE_ACL_MAX_INDEX + 1);
+               } else if (strcmp(lgopts[opt_idx].name, OPT_MAX_SIZE) == 0) {
+                       config.max_size = get_ulong_opt(
+                                       optarg, lgopts[opt_idx].name, 0, 
SIZE_MAX);
+               } else if (strcmp(lgopts[opt_idx].name, OPT_TRACE_NUM) == 0) {
+                       config.nb_traces = get_ulong_opt(
+                                       optarg, lgopts[opt_idx].name, 1, 
UINT32_MAX);
+               } else if (strcmp(lgopts[opt_idx].name, OPT_TRACE_STEP) == 0) {
+                       config.trace_step =
+                                       get_ulong_opt(optarg, 
lgopts[opt_idx].name, 1,
+                                                     TRACE_STEP_MAX);
+               } else if (strcmp(lgopts[opt_idx].name, OPT_BLD_CATEGORIES) ==
+                          0) {
+                       config.bld_categories =
+                                       get_ulong_opt(optarg, 
lgopts[opt_idx].name, 1,
+                                                     RTE_ACL_MAX_CATEGORIES);
+               } else if (strcmp(lgopts[opt_idx].name, OPT_RUN_CATEGORIES) ==
+                          0) {
+                       config.run_categories =
+                                       get_ulong_opt(optarg, 
lgopts[opt_idx].name, 1,
+                                                     RTE_ACL_MAX_CATEGORIES);
+               } else if (strcmp(lgopts[opt_idx].name, OPT_ITER_NUM) == 0) {
+                       config.iter_num = get_ulong_opt(
+                                       optarg, lgopts[opt_idx].name, 1, 
INT32_MAX);
+               } else if (strcmp(lgopts[opt_idx].name, OPT_VERBOSE) == 0) {
+                       config.verbose =
+                                       get_ulong_opt(optarg, 
lgopts[opt_idx].name,
+                                                     DUMP_NONE, DUMP_MAX);
+               } else if (strcmp(lgopts[opt_idx].name, OPT_SEARCH_ALG) == 0) {
+                       get_alg_opt(optarg, lgopts[opt_idx].name);
+               } else if (strcmp(lgopts[opt_idx].name, OPT_IPV6) == 0) {
+                       config.ipv6 = 1;
+               }
+       }
+       config.trace_sz = config.ipv6 ? sizeof(struct ipv6_5tuple) :
+                         sizeof(struct ipv4_5tuple);
+}
+
+class TestpmdAPIImpl final : public ::TestpmdAPI::Service {
+public:
+       virtual ::grpc::Status acl_setup([[maybe_unused]] ::grpc::ServerContext 
*context,
+                                        const ::AclSetupArgs *request,
+                                        ::google::protobuf::Empty *response) {
+
+               auto *args = new std::vector<char *>();
+
+               for (auto& arg : request->args()) {
+                       args->push_back((char*) arg.c_str());
+               }
+
+               // terminator
+               args->push_back(nullptr);
+
+
+               int ret = rte_eal_init(args->size() - 1, args->data());
+               if (ret < 0)
+                       rte_panic("Cannot init EAL\n");
+
+               config.prgname = args->at(0);
+
+               get_input_opts(args->size() - ret - 1, &(*args)[ret]);
+               dump_config(stdout);
+               check_config();
+
+               acx_init();
+
+               if (config.trace_file != nullptr)
+                       tracef_init();
+
+               *response = google::protobuf::Empty();
+
+               return grpc::Status::OK;
+       }
+
+       virtual ::grpc::Status
+       acl_search([[maybe_unused]] ::grpc::ServerContext *context,
+                  [[maybe_unused]] const ::google::protobuf::Empty *request,
+                  ::google::protobuf::Empty *response) {
+               uint32_t lcore;
+
+               
RTE_LCORE_FOREACH_WORKER(lcore)rte_eal_remote_launch(search_ip5tuples, NULL, 
lcore);
+
+               search_ip5tuples(NULL);
+
+               rte_eal_mp_wait_lcore();
+
+               *response = google::protobuf::Empty();
+
+               return grpc::Status::OK;
+       }
+
+       virtual ::grpc::Status acl_cleanup_config([[maybe_unused]] 
::grpc::ServerContext *context, [[maybe_unused]] const 
::google::protobuf::Empty *request,
+                                                 ::google::protobuf::Empty 
*response) {
+               rte_acl_free(config.acx);
+
+               *response = google::protobuf::Empty();
+               return grpc::Status::OK;
+       }
+};
+
+extern "C" {
+void rte_testpmd_run() {
+#ifdef RTE_RPC_SERVER_PORT
+       std::string address = "0.0.0.0:" RTE_RPC_SERVER_PORT;
+#else
+       std::string address = "0.0.0.0:8000";
+#endif
+
+       grpc::EnableDefaultHealthCheckService(true);
+       grpc::reflection::InitProtoReflectionServerBuilderPlugin();
+       TestpmdAPIImpl* service = new TestpmdAPIImpl();
+
+       grpc::ServerBuilder builder; // RAII
+       builder.AddListeningPort(address, grpc::InsecureServerCredentials());
+       builder.RegisterService(service);
+       RTE_LOG(INFO, PMD, "Starting server on %s", address.c_str());
+       std::unique_ptr<grpc::Server> server(builder.BuildAndStart()); // RAII
+       server->Wait();
+}
+}
diff --git a/app/test-pmd-api/api_impl.h b/app/test-pmd-api/api_impl.h
new file mode 100644
index 0000000000..5e81aa9804
--- /dev/null
+++ b/app/test-pmd-api/api_impl.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 University of New Hampshire
+ */
+
+/*
+Dispite this file being attached to a C++ file, all definitions must remain 
ISO C. In additon,
+any exported members from C++ must be in an "extern C" block.
+*/
+
+void rte_testpmd_run();
\ No newline at end of file
diff --git a/app/test-pmd-api/main.c b/app/test-pmd-api/main.c
new file mode 100644
index 0000000000..b69d2df814
--- /dev/null
+++ b/app/test-pmd-api/main.c
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 University of New Hampshire
+ */
+#include "api_impl.h"
+
+int
+main()
+{
+       rte_testpmd_run();
+       return 0;
+}
-- 
2.30.2

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