ipv6connect: add whole subdir

The upstream project is at this location:
https://chromium.googlesource.com/chromiumos/third_party/autotest/+/0.12.369.B/client/tests/ipv6connect

Signed-off-by: Yannick Gicquel <yannick.gicquel@iot.bzh>

3 files changed, 826 insertions, 0 deletions

diff --git a/ipv6connect/LICENSE b/ipv6connect/LICENSE
new file mode 100644
index 0000000..d159169
--- /dev/null
+++ b/ipv6connect/LICENSE
@@ -0,0 +1,339 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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diff --git a/ipv6connect/Makefile b/ipv6connect/Makefile
new file mode 100644
index 0000000..2a0445e
--- /dev/null
+++ b/ipv6connect/Makefile
@@ -0,0 +1,13 @@
+CFLAGS = -O2 -Wall
+TARGET = ipv6connect
+
+
+all: $(TARGET)
+
+
+$(TARGET): ipv6connect.c
+	$(CC) $(CFLAGS) $^ -o $@ -lpthread
+
+
+clean:
+	$(RM) $(TARGET)
diff --git a/ipv6connect/ipv6connect.c b/ipv6connect/ipv6connect.c
new file mode 100644
index 0000000..34bd2d8
--- /dev/null
+++ b/ipv6connect/ipv6connect.c
@@ -0,0 +1,474 @@
+// Copyright 2008 Google Inc.  Released under the GPL v2.
+//
+// This test performs numerous connects (with auto-binding), to a server
+// listening on all local addresses using an IPv6 socket, by connecting to
+// 127.0.0.1, ::ffff:127.0.0.1 and ::1.
+//
+// The code is really three tests:
+//
+//   - RunWithOneServer, using CreateServer and ConnectAndAccept,
+//     uses one server socket and repeatedly connects to it.
+//
+//   - RunWithOneShotServers, using CreateServerConnectAndAccept,
+//     creates servers, connects to them and then discards them.
+//
+//   - RunMultiThreaded, using ThreadedCreateServerConnectAndAccept,
+//     ThreadedStartServer and ThreadedGetServerFD, is equivalent to
+//     RunWithOneShotServers but uses multiple threads, one for the
+//     server and one for the client.
+//
+// Each of these tests triggers error conditions on different kernels
+// to a different extent.
+
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <time.h>
+#include <unistd.h>
+
+// Which loopback address to connect to.
+enum LoopbackAddr { V4_LOOPBACK, V6_LOOPBACK, V6_MAPPED_V4_LOOPBACK };
+
+// Connect to a listening TCP socket, and accept the connection.
+static void ConnectAndAccept(enum LoopbackAddr addr, int server_fd, int port) {
+  struct sockaddr_in6 sa;
+  socklen_t addr_len;
+  int client_fd, accepted_fd;
+
+  if (addr == V6_LOOPBACK || addr == V6_MAPPED_V4_LOOPBACK) {
+    char buf[INET6_ADDRSTRLEN];
+
+    memset(&sa, 0, sizeof(sa));
+    if ((client_fd = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+      perror("socket");
+      exit(1);
+    }
+    if (addr == V6_LOOPBACK) {
+      inet_pton(AF_INET6, "::1", &sa.sin6_addr);
+    } else if (addr == V6_MAPPED_V4_LOOPBACK) {
+      inet_pton(AF_INET6, "::ffff:127.0.0.1", &sa.sin6_addr);
+    }
+    if (!inet_ntop(AF_INET6, &sa.sin6_addr, buf, INET6_ADDRSTRLEN)) {
+      perror("inet_ntop");
+      exit(1);
+    }
+    addr_len = sizeof(sa);
+    sa.sin6_family = AF_INET6;
+    sa.sin6_port = port;
+    if (connect(client_fd, (struct sockaddr*)(&sa),
+                sizeof(struct sockaddr_in6)) == -1) {
+      perror("connect");
+      exit(1);
+    }
+    write(2, (addr == V6_LOOPBACK) ? "+" : "-", 1);
+  } else {
+    struct sockaddr_in sa4;
+
+    if ((client_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+      perror("socket");
+      exit(1);
+    }
+    memset(&sa4, 0, sizeof(sa4));
+    sa4.sin_family = AF_INET;
+    inet_pton(AF_INET, "127.0.0.1", &sa4.sin_addr);
+    sa4.sin_port = port;
+    if (connect(client_fd, (struct sockaddr*)(&sa4),
+                sizeof(struct sockaddr_in)) == -1) {
+      perror("connect");
+      exit(1);
+    }
+    write(2, ".", 1);
+  }
+  addr_len = sizeof(sa);
+  if ((accepted_fd = accept(server_fd,
+                            (struct sockaddr*)(&sa), &addr_len)) == -1) {
+    perror("accept");
+    exit(1);
+  }
+  close(client_fd);
+  close(accepted_fd);
+}
+
+// Create a listening TCP socket.
+static void CreateServer(int* server_fd, int* port) {
+  struct sockaddr_in6 sa;
+  socklen_t addr_len;
+
+  memset(&sa, 0, sizeof(sa));
+  if ((*server_fd = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+    perror("socket");
+    exit(1);
+  }
+  addr_len = sizeof(sa);
+  sa.sin6_family = AF_INET6;
+  sa.sin6_addr = in6addr_any;
+  sa.sin6_port = 0;
+  if (bind(*server_fd, (struct sockaddr*)(&sa), sizeof(sa)) == -1) {
+    perror("bind");
+    exit(1);
+  }
+  if (getsockname(*server_fd, (struct sockaddr*)(&sa), &addr_len) == -1) {
+    perror("getsockname");
+    exit(1);
+  }
+  if (listen(*server_fd, 10) == -1) {
+    perror("listen");
+    exit(1);
+  }
+  *port = sa.sin6_port;
+}
+
+// Create a socket, connect to it, accept, and discard both.
+static void CreateServerConnectAndAccept(enum LoopbackAddr addr) {
+  struct sockaddr_in6 sa;
+  socklen_t addr_len;
+  int server_fd, client_fd, accepted_fd, connect_rc;
+
+  if ((server_fd = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+    perror("socket");
+    exit(1);
+  }
+  addr_len = sizeof(sa);
+  memset(&sa, 0, sizeof(sa));
+  sa.sin6_family = AF_INET6;
+  sa.sin6_addr = in6addr_any;
+  sa.sin6_port = 0;
+  if (bind(server_fd, (struct sockaddr*)(&sa), sizeof(sa)) == -1) {
+    perror("bind");
+    exit(1);
+  }
+  if (getsockname(server_fd, (struct sockaddr*)(&sa), &addr_len) == -1) {
+    perror("getsockname");
+    exit(1);
+  }
+  if (listen(server_fd, 10) == -1) {
+    perror("listen");
+    exit(1);
+  }
+  if (addr == V6_LOOPBACK || addr == V6_MAPPED_V4_LOOPBACK) {
+    char buf[INET6_ADDRSTRLEN];
+
+    if ((client_fd = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+      perror("socket");
+      exit(1);
+    }
+    if (addr == V6_LOOPBACK) {
+      inet_pton(AF_INET6, "::1", &sa.sin6_addr);
+    } else if (addr == V6_MAPPED_V4_LOOPBACK) {
+      inet_pton(AF_INET6, "::ffff:127.0.0.1", &sa.sin6_addr);
+    }
+    if (!inet_ntop(AF_INET6, &sa.sin6_addr, buf, INET6_ADDRSTRLEN)) {
+      perror("inet_ntop");
+      exit(1);
+    }
+    connect_rc = connect(client_fd, (struct sockaddr*)(&sa),
+                         sizeof(struct sockaddr_in6));
+    write(2, (addr == V6_MAPPED_V4_LOOPBACK) ? "-" : "+", 1);
+  } else {
+    struct sockaddr_in sa4;
+
+    if ((client_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+      perror("socket");
+      exit(1);
+    }
+    memset(&sa4, 0, sizeof(sa4));
+    sa4.sin_family = AF_INET;
+    inet_pton(AF_INET, "127.0.0.1", &sa4.sin_addr);
+    sa4.sin_port = sa.sin6_port;
+    connect_rc = connect(client_fd, (struct sockaddr*)(&sa4),
+                         sizeof(struct sockaddr_in));
+    write(2, ".", 1);
+  }
+  if (connect_rc == -1) {
+    perror("connect");
+    exit(1);
+  }
+  addr_len = sizeof(sa);
+  if ((accepted_fd = accept(server_fd,
+                            (struct sockaddr*)(&sa), &addr_len)) == -1) {
+    perror("accept");
+    exit(1);
+  }
+  close(accepted_fd);
+  close(client_fd);
+  close(server_fd);
+}
+
+// Globals for threaded version.
+static volatile int threaded_listening = 0;
+static int threaded_server_fd;
+static pthread_mutex_t threaded_mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t threaded_cond = PTHREAD_COND_INITIALIZER;
+
+// Block until listening, then return server address.
+static int ThreadedGetServerFD() {
+  pthread_mutex_lock(&threaded_mutex);
+  while (!threaded_listening) {
+    pthread_cond_wait(&threaded_cond, &threaded_mutex);
+  }
+  pthread_mutex_unlock(&threaded_mutex);
+  return threaded_server_fd;
+}
+
+// Start a server which accepts one connection.
+static void* ThreadedStartServer(void* unused) {
+  struct sockaddr_in6 sa;
+  socklen_t addr_len = sizeof(sa);
+  int accept_fd;
+
+  if ((threaded_server_fd = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+    perror("socket");
+    exit(1);
+  }
+
+  // Any IP, unused port.
+  memset(&sa, 0, sizeof(sa));
+  sa.sin6_family = AF_INET6;
+  sa.sin6_addr = in6addr_any;
+  sa.sin6_port = 0;
+
+  // Bind.
+  if (bind(threaded_server_fd, (struct sockaddr*)(&sa), sizeof(sa)) == -1) {
+    perror("bind");
+    exit(1);
+  }
+
+  // Listen.
+  if (listen(threaded_server_fd, 10) == -1) {
+    perror("listen");
+    exit(1);
+  }
+  pthread_mutex_lock(&threaded_mutex);
+  threaded_listening = 1;
+  pthread_cond_signal(&threaded_cond);
+  pthread_mutex_unlock(&threaded_mutex);
+
+  // Try to accept.
+  if ((accept_fd = accept(threaded_server_fd, (struct sockaddr*)(&sa),
+                          &addr_len)) == -1) {
+    perror("accept");
+    exit(1);
+  }
+
+  // All done.
+  close(threaded_server_fd);
+  close(accept_fd);
+  threaded_listening = 0;
+  return NULL;
+}
+
+// Start a server thread, then connect to it via TCP.
+static void ThreadedCreateServerConnectAndAccept(enum LoopbackAddr addr) {
+  pthread_t pthread;
+  int server_fd, client_fd;
+  struct sockaddr_in6 sa;
+  socklen_t addr_len = sizeof(sa);
+
+  pthread_create(&pthread, NULL, ThreadedStartServer, NULL);
+
+  // Get the server address information -- this call will block until
+  // the server is listening.
+  server_fd = ThreadedGetServerFD();
+  memset(&sa, 0, sizeof(sa));
+  if (getsockname(server_fd, (struct sockaddr*)(&sa), &addr_len) == -1) {
+    perror("getsockname");
+    exit(1);
+  }
+
+  if (addr == V6_LOOPBACK || addr == V6_MAPPED_V4_LOOPBACK) {
+    char buf[INET6_ADDRSTRLEN];
+
+    if ((client_fd = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+      perror("socket");
+      exit(1);
+    }
+
+    // Check that we are listening on ::
+    if (!inet_ntop(AF_INET6, &sa.sin6_addr, buf, INET6_ADDRSTRLEN)) {
+      fprintf(stderr, "inet_ntop failed\n");
+      exit(1);
+    }
+    if (strlen(buf) != 2) {
+      fprintf(stderr, "Expected to listen on ::, instead listening on %s", buf);
+      exit(1);
+    }
+
+    if (addr == V6_LOOPBACK) {
+      inet_pton(AF_INET6, "::1", &sa.sin6_addr);
+    } else if (addr == V6_MAPPED_V4_LOOPBACK) {
+      inet_pton(AF_INET6, "::ffff:127.0.0.1", &sa.sin6_addr);
+    }
+    if (connect(client_fd, (struct sockaddr*)(&sa),
+                sizeof(struct sockaddr_in6)) == -1) {
+      perror("connect");
+      exit(1);
+    }
+  } else {
+    struct sockaddr_in sa4;
+
+    if ((client_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+      perror("socket");
+      exit(1);
+    }
+
+    memset(&sa4, 0, sizeof(sa4));
+    sa4.sin_family = AF_INET;
+    inet_aton("127.0.0.1", &sa4.sin_addr);
+    sa4.sin_port = sa.sin6_port;
+
+    if (connect(client_fd, (struct sockaddr*)(&sa4),
+                sizeof(struct sockaddr_in)) == -1) {
+      perror("connect");
+      exit(1);
+    }
+  }
+
+  // Update progress.
+  switch (addr) {
+    case V4_LOOPBACK:
+      write(2, ".", 1);
+      break;
+    case V6_MAPPED_V4_LOOPBACK:
+      write(2, "-", 1);
+      break;
+    case V6_LOOPBACK:
+      write(2, "+", 1);
+      break;
+  }
+
+  // Close our connection and wait for the server thread to shutdown.
+  close(client_fd);
+  pthread_join(pthread, NULL);
+}
+
+static void RunWithOneServer(int outer, int inner) {
+  int i, j, server_fd, port;
+  fprintf(stderr, "Starting test with one server port for all connects\n");
+  for (i = 0; i < outer; ++i) {
+    CreateServer(&server_fd, &port);
+    for (j = 0; j < inner; ++j) {
+      ConnectAndAccept(V4_LOOPBACK, server_fd, port);
+    }
+    write(2, "\n", 1);
+    for (j = 0; j < inner; ++j) {
+      ConnectAndAccept(V6_MAPPED_V4_LOOPBACK, server_fd, port);
+    }
+    write(2, "\n", 1);
+    for (j = 0; j < inner; ++j) {
+      ConnectAndAccept(V6_LOOPBACK, server_fd, port);
+    }
+    write(2, "\n", 1);
+    close(server_fd);
+  }
+}
+
+static void RunWithOneShotServers(int outer, int inner) {
+  int i, j;
+  fprintf(stderr, "Starting test with one server port per connect\n");
+  for (i = 0; i < outer; ++i) {
+    for (j = 0; j < inner; ++j) {
+      CreateServerConnectAndAccept(V4_LOOPBACK);
+    }
+    write(2, "\n", 1);
+    for (j = 0; j < inner; ++j) {
+      CreateServerConnectAndAccept(V6_MAPPED_V4_LOOPBACK);
+    }
+    write(2, "\n", 1);
+    for (j = 0; j < inner; ++j) {
+      CreateServerConnectAndAccept(V6_LOOPBACK);
+    }
+    write(2, "\n", 1);
+  }
+}
+
+static void RunMultiThreaded(int outer, int inner) {
+  int i, j;
+  fprintf(stderr, "Starting multi-threaded test\n");
+  for (i = 0; i < outer; ++i) {
+    for (j = 0; j < inner; ++j) {
+      ThreadedCreateServerConnectAndAccept(V4_LOOPBACK);
+    }
+    write(2, "\n", 1);
+    for (j = 0; j < inner; ++j) {
+      ThreadedCreateServerConnectAndAccept(V6_MAPPED_V4_LOOPBACK);
+    }
+    write(2, "\n", 1);
+    for (j = 0; j < inner; ++j) {
+      ThreadedCreateServerConnectAndAccept(V6_LOOPBACK);
+    }
+    write(2, "\n", 1);
+  }
+}
+
+static const char* usage =
+    "Usage: %s [types [outer [inner]]]\n"
+    "Arguments:\n"
+    "\ttypes: String consisting of [OMT], for the test types to run\n"
+    "\t       O: One server, multiple connects\n"
+    "\t       M: One server per connect (multiple server ports)\n"
+    "\t       T: Multi-threaded version of \'M\'\n"
+    "\touter: Number of passes through the outer loops, default 10\n"
+    "\tinner: Number of passes through the inner loops, default 75\n";
+
+static void Usage(char *argv0) {
+  fprintf(stderr, usage, argv0);
+  exit(2);
+}
+
+int main(int argc, char** argv) {
+  char *types = "OMT";
+  int i, inner = 75, outer = 10, timediff;
+  struct timeval tv0, tv1;
+
+  // Parse the options.
+  if (argc == 4) {
+    inner = atoi(argv[3]);
+    if (inner <= 0) {
+      Usage(argv[0]);
+    }
+    argc--;
+  }
+  if (argc == 3) {
+    outer = atoi(argv[2]);
+    if (outer <= 0) {
+      Usage(argv[0]);
+    }
+    argc--;
+  }
+  if (argc == 2) {
+    types = argv[1];
+    if (strspn(types, "OMT") != strlen(types)) {
+      Usage(argv[0]);
+    }
+    argc--;
+  }
+  if (argc != 1) {
+    Usage(argv[0]);
+  }
+
+  // Run the tests.
+  gettimeofday(&tv0, NULL);
+  for (i = 0; i < strlen(types); ++i) {
+    switch (types[i]) {
+      case 'O':
+        RunWithOneServer(outer, inner);
+        break;
+      case 'M':
+        RunWithOneShotServers(outer, inner);
+        break;
+      case 'T':
+        RunMultiThreaded(outer, inner);
+        break;
+    }
+  }
+  gettimeofday(&tv1, NULL);
+  timediff = (tv1.tv_sec - tv0.tv_sec) * 1000000 + tv1.tv_usec - tv0.tv_usec;
+  fprintf(stderr, "Total time = %d.%06ds\n", timediff / 1000000,
+          timediff % 1000000);
+  exit(0);
+}