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selftest: tcp: Add v4-mapped-v6 cases in bind_wildcard.c.

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We add these 8 test cases in bind_wildcard.c to check bind() conflicts.

  1st bind()          2nd bind()
  ---------           ---------
  0.0.0.0             ::FFFF:0.0.0.0
  ::FFFF:0.0.0.0      0.0.0.0
  0.0.0.0             ::FFFF:127.0.0.1
  ::FFFF:127.0.0.1    0.0.0.0
  127.0.0.1           ::FFFF:0.0.0.0
  ::FFFF:0.0.0.0      127.0.0.1
  127.0.0.1           ::FFFF:127.0.0.1
  ::FFFF:127.0.0.1    127.0.0.1

All test passed without bhash2 and with bhash2 and this series.

 Before bhash2:
  $ uname -r
  6.0.0-rc1-00393-g0bf73255d3a3
  $ ./bind_wildcard
  ...
  # PASSED: 16 / 16 tests passed.

 Just after bhash2:
  $ uname -r
  6.0.0-rc1-00394-g28044fc1d495
  $ ./bind_wildcard
  ...
  ok 15 bind_wildcard.v4_local_v6_v4mapped_local.v4_v6
  not ok 16 bind_wildcard.v4_local_v6_v4mapped_local.v6_v4
  # FAILED: 15 / 16 tests passed.

 On net.git:
  $ ./bind_wildcard
  ...
  not ok 14 bind_wildcard.v4_local_v6_v4mapped_any.v6_v4
  not ok 16 bind_wildcard.v4_local_v6_v4mapped_local.v6_v4
  # FAILED: 13 / 16 tests passed.

 With this series:
  $ ./bind_wildcard
  ...
  # PASSED: 16 / 16 tests passed.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kuniyuki Iwashima 2023-09-11 11:37:00 -07:00 committed by David S. Miller
parent 2895d879dd
commit 8637d8e8b6
1 changed files with 46 additions and 0 deletions
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46
tools/testing/selftests/net/bind_wildcard.c
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@ -6,6 +6,24 @@
#include "../kselftest_harness.h"
struct in6_addr in6addr_v4mapped_any = {
.s6_addr = {
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 255, 255,
0, 0, 0, 0
}
};
struct in6_addr in6addr_v4mapped_loopback = {
.s6_addr = {
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 255, 255,
127, 0, 0, 1
}
};
FIXTURE(bind_wildcard)
{
struct sockaddr_in addr4;
@ -33,6 +51,20 @@ FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_local)
.expected_errno = 0,
};
FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_v4mapped_any)
{
.addr4_const = INADDR_ANY,
.addr6_const = &in6addr_v4mapped_any,
.expected_errno = EADDRINUSE,
};
FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_v4mapped_local)
{
.addr4_const = INADDR_ANY,
.addr6_const = &in6addr_v4mapped_loopback,
.expected_errno = EADDRINUSE,
};
FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_any)
{
.addr4_const = INADDR_LOOPBACK,
@ -47,6 +79,20 @@ FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_local)
.expected_errno = 0,
};
FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_v4mapped_any)
{
.addr4_const = INADDR_LOOPBACK,
.addr6_const = &in6addr_v4mapped_any,
.expected_errno = EADDRINUSE,
};
FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_v4mapped_local)
{
.addr4_const = INADDR_LOOPBACK,
.addr6_const = &in6addr_v4mapped_loopback,
.expected_errno = EADDRINUSE,
};
FIXTURE_SETUP(bind_wildcard)
{
self->addr4.sin_family = AF_INET;