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path: root/test/vpp_udp_encap.py
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#!/usr/bin/env python3
"""
  UDP encap objects
"""

from vpp_object import VppObject
from socket import inet_pton, inet_ntop, AF_INET, AF_INET6


def find_udp_encap(test, ue):
    encaps = test.vapi.udp_encap_dump()
    for e in encaps:
        if ue.id == e.udp_encap.id \
           and ue.src_ip == str(e.udp_encap.src_ip) \
           and ue.dst_ip == str(e.udp_encap.dst_ip) \
           and e.udp_encap.dst_port == ue.dst_port \
           and e.udp_encap.src_port == ue.src_port:
            return True

    return False


class VppUdpEncap(VppObject):

    def __init__(self,
                 test,
                 src_ip,
                 dst_ip,
                 src_port,
                 dst_port,
                 table_id=0):
        self._test = test
        self.table_id = table_id
        self.src_ip_s = src_ip
        self.dst_ip_s = dst_ip
        self.src_ip = src_ip
        self.dst_ip = dst_ip
        self.src_port = src_port
        self.dst_port = dst_port

    def add_vpp_config(self):
        r = self._test.vapi.udp_encap_add(
            self.src_ip,
            self.dst_ip,
            self.src_port,
            self.dst_port,
            self.table_id)
        self.id = r.id
        self._test.registry.register(self, self._test.logger)

    def remove_vpp_config(self):
        self._test.vapi.udp_encap_del(self.id)

    def query_vpp_config(self):
        return find_udp_encap(self._test, self)

    def object_id(self):
        return ("udp-encap-%d" % self.id)

    def get_stats(self):
        c = self._test.statistics.get_counter("/net/udp-encap")
        return c[0][self.id]
(u64) outcome_frequencies[i]; d = clib_chisquare (values); delta_d = d - 5.333; if (delta_d < 0.0) delta_d = -delta_d; if (delta_d < 0.001) { fformat (stdout, "chisquare OK...\n"); return 0; } else { fformat (stdout, "chisquare BAD, d = %.3f\n", d); return -1; } } static u32 known_random_sequence[] = { 0x00000000, 0x3c6ef35f, 0x47502932, 0xd1ccf6e9, 0xaaf95334, 0x6252e503, 0x9f2ec686, 0x57fe6c2d, 0xa3d95fa8, 0x81fdbee7, 0x94f0af1a, 0xcbf633b1, }; int test_random_main (unformat_input_t * input) { uword n_iterations; uword i, repeat_count; uword *bitmap = 0; uword print; u32 seed; u32 *seedp = &seed; u64 *counts = 0; f64 d; /* first, check known sequence from Numerical Recipes in C, 2nd ed. page 284 */ seed = known_random_sequence[0]; for (i = 0; i < ARRAY_LEN (known_random_sequence) - 1; i++) { u32 rv; rv = random_u32 (seedp); if (rv != known_random_sequence[i + 1]) { fformat (stderr, "known sequence check FAILS at index %d", i + 1); break; } } clib_warning ("known sequence check passes"); n_iterations = 1000; seed = 0; print = 1 << 24; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { if (0 == unformat (input, "iter %d", &n_iterations) && 0 == unformat (input, "print %d", &print) && 0 == unformat (input, "seed %d", &seed)) clib_error ("unknown input `%U'", format_unformat_error, input); } if (!seed) seed = random_default_seed (); if (n_iterations == 0) n_iterations = random_u32_max (); clib_warning ("%d iterations, seed %d\n", n_iterations, seed); repeat_count = 0; for (i = 0; i < n_iterations; i++) { uword r = random_u32 (&seed); uword b, ri, rj; ri = r / BITS (bitmap[0]); rj = (uword) 1 << (r % BITS (bitmap[0])); vec_validate (bitmap, ri); b = bitmap[ri]; if (b & rj) goto repeat; b |= rj; bitmap[ri] = b; if (0 == (i & (print - 1))) fformat (stderr, "0x%08x iterations %d repeats\n", i, repeat_count); continue; repeat: fformat (stderr, "repeat found at iteration %d/%d\n", i, n_iterations); repeat_count++; continue; } if (test_chisquare ()) return (-1); /* Simple randomness tests based on X2 stats */ vec_validate (counts, 255); for (i = 0; i < 1000000; i++) { u32 random_index; u32 r = random_u32 (&seed); random_index = r & 0xFF; counts[random_index]++; } d = clib_chisquare (counts); fformat (stdout, "%d random octets, chisquare stat d = %.3f\n", i, d); vec_free (counts); return 0; } #ifdef CLIB_UNIX int main (int argc, char *argv[]) { unformat_input_t i; int ret; clib_mem_init (0, 3ULL << 30); unformat_init_command_line (&i, argv); ret = test_random_main (&i); unformat_free (&i); return ret; } #endif /* CLIB_UNIX */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */