Beispiel #1
0
/* Connects to a fake_pvconn with vconn_open(), accepts that connection and
 * closes it immediately, and verifies that vconn_connect() reports
 * 'expected_error'. */
static void
test_accept_then_close(struct ovs_cmdl_context *ctx)
{
    const char *type = ctx->argv[1];
    struct fake_pvconn fpv;
    struct vconn *vconn;
    int error;

    fpv_create(type, &fpv);
    CHECK_ERRNO(vconn_open(fpv.vconn_name, 0, DSCP_DEFAULT, &vconn), 0);
    vconn_run(vconn);
    stream_close(fpv_accept(&fpv));
    fpv_close(&fpv);

    error = vconn_connect_block(vconn);
    if (!strcmp(type, "tcp") || !strcmp(type, "unix")) {
        if (error != ECONNRESET && error != EPIPE
#ifdef _WIN32
            && error != WSAECONNRESET
#endif
            ) {
            ovs_fatal(0, "unexpected vconn_connect() return value %d (%s)",
                      error, ovs_strerror(error));
        }
    } else {
        CHECK_ERRNO(error, EPROTO);
    }

    vconn_close(vconn);
    fpv_destroy(&fpv);
}
Beispiel #2
0
/* Connects to a fake_pvconn with vconn_open(), accepts that connection and
 * reads the hello message from it, then closes the connection and verifies
 * that vconn_connect() reports 'expected_error'. */
static void
test_read_hello(struct ovs_cmdl_context *ctx)
{
    const char *type = ctx->argv[1];
    struct fake_pvconn fpv;
    struct vconn *vconn;
    struct stream *stream;
    int error;

    fpv_create(type, &fpv);
    CHECK_ERRNO(vconn_open(fpv.vconn_name, 0, DSCP_DEFAULT, &vconn), 0);
    vconn_run(vconn);
    stream = fpv_accept(&fpv);
    fpv_destroy(&fpv);
    for (;;) {
       struct ofp_header hello;
       int retval;

       retval = stream_recv(stream, &hello, sizeof hello);
       if (retval == sizeof hello) {
           enum ofpraw raw;

           CHECK(hello.version, OFP13_VERSION);
           CHECK(ofpraw_decode_partial(&raw, &hello, sizeof hello), 0);
           CHECK(raw, OFPRAW_OFPT_HELLO);
           CHECK(ntohs(hello.length), sizeof hello);
           break;
       } else {
           CHECK_ERRNO(retval, -EAGAIN);
       }

       vconn_run(vconn);
       CHECK_ERRNO(vconn_connect(vconn), EAGAIN);
       vconn_run_wait(vconn);
       vconn_connect_wait(vconn);
       stream_recv_wait(stream);
       poll_block();
    }
    stream_close(stream);
    error = vconn_connect_block(vconn);
    if (error != ECONNRESET && error != EPIPE) {
        ovs_fatal(0, "unexpected vconn_connect() return value %d (%s)",
                  error, ovs_strerror(error));
    }
    vconn_close(vconn);
}
Beispiel #3
0
static void
reconnect(struct rconn *rc)
{
    int retval;

    retval = vconn_open(rc->target, RFP10_VERSION, &rc->vconn, DSCP_DEFAULT);
    if (!retval) {
//        rc->remote_ip = vconn_get_remote_ip(rc->vconn);
//        rc->local_ip = vconn_get_local_ip(rc->vconn);
//        rc->remote_port = vconn_get_remote_port(rc->vconn);
        state_transition(rc, S_CONNECTING);
    } 
    else 
    {
        printf("%s: connection failed (%s)", rc->target, strerror(retval));
        rconn_disconnect(rc);
    }
}
Beispiel #4
0
/* Connects to a fake_pvconn with vconn_open(), then closes the listener and
 * verifies that vconn_connect() reports 'expected_error'. */
static void
test_refuse_connection(int argc OVS_UNUSED, char *argv[])
{
    const char *type = argv[1];
    int expected_error;
    struct fake_pvconn fpv;
    struct vconn *vconn;

    expected_error = (!strcmp(type, "unix") ? EPIPE
                      : !strcmp(type, "tcp") ? ECONNRESET
                      : EPROTO);

    fpv_create(type, &fpv);
    CHECK_ERRNO(vconn_open(fpv.vconn_name, OFP_VERSION, &vconn), 0);
    fpv_close(&fpv);
    vconn_run(vconn);
    CHECK_ERRNO(vconn_connect(vconn), expected_error);
    vconn_close(vconn);
    fpv_destroy(&fpv);
}
Beispiel #5
0
/* Connects to a fake_pvconn with vconn_open(), then closes the listener and
 * verifies that vconn_connect() reports 'expected_error'. */
static void
test_refuse_connection(struct ovs_cmdl_context *ctx)
{
    const char *type = ctx->argv[1];
    struct fake_pvconn fpv;
    struct vconn *vconn;
    int error;

    fpv_create(type, &fpv);
    CHECK_ERRNO(vconn_open(fpv.vconn_name, 0, DSCP_DEFAULT, &vconn), 0);
    fpv_close(&fpv);
    vconn_run(vconn);

    error = vconn_connect_block(vconn);
    if (!strcmp(type, "tcp")) {
        if (error != ECONNRESET && error != EPIPE
#ifdef _WIN32
            && error != WSAECONNRESET
#endif
            ) {
            ovs_fatal(0, "unexpected vconn_connect() return value %d (%s)",
                      error, ovs_strerror(error));
        }
    } else if (!strcmp(type, "unix")) {
#ifndef _WIN32
        CHECK_ERRNO(error, EPIPE);
#else
        CHECK_ERRNO(error, WSAECONNRESET);
#endif
    } else if (!strcmp(type, "ssl")) {
        if (error != EPROTO && error != ECONNRESET) {
            ovs_fatal(0, "unexpected vconn_connect() return value %d (%s)",
                      error, ovs_strerror(error));
        }
    } else {
        ovs_fatal(0, "invalid connection type %s", type);
    }

    vconn_close(vconn);
    fpv_destroy(&fpv);
}
Beispiel #6
0
/* Connects to a fake_pvconn with vconn_open(), accepts that connection and
 * reads the hello message from it, then closes the connection and verifies
 * that vconn_connect() reports 'expected_error'. */
static void
test_read_hello(int argc OVS_UNUSED, char *argv[])
{
    const char *type = argv[1];
    struct fake_pvconn fpv;
    struct vconn *vconn;
    struct stream *stream;

    fpv_create(type, &fpv);
    CHECK_ERRNO(vconn_open(fpv.vconn_name, OFP10_VERSION, &vconn,
                           DSCP_DEFAULT), 0);
    vconn_run(vconn);
    stream = fpv_accept(&fpv);
    fpv_destroy(&fpv);
    for (;;) {
       struct ofp_header hello;
       int retval;

       retval = stream_recv(stream, &hello, sizeof hello);
       if (retval == sizeof hello) {
           CHECK(hello.version, OFP10_VERSION);
           CHECK(hello.type, OFPT_HELLO);
           CHECK(ntohs(hello.length), sizeof hello);
           break;
       } else {
           CHECK_ERRNO(retval, -EAGAIN);
       }

       vconn_run(vconn);
       CHECK_ERRNO(vconn_connect(vconn), EAGAIN);
       vconn_run_wait(vconn);
       vconn_connect_wait(vconn);
       stream_recv_wait(stream);
       poll_block();
    }
    stream_close(stream);
    CHECK_ERRNO(vconn_connect(vconn), ECONNRESET);
    vconn_close(vconn);
}
Beispiel #7
0
/* Connects to a fake_pvconn with vconn_open(), accepts that connection and
 * sends the 'out' bytes in 'out_size' to it (presumably an OFPT_HELLO
 * message), then verifies that vconn_connect() reports
 * 'expect_connect_error'. */
static void
test_send_hello(const char *type, const void *out, size_t out_size,
                int expect_connect_error)
{
    struct fake_pvconn fpv;
    struct vconn *vconn;
    bool read_hello, connected;
    struct ofpbuf *msg;
    struct stream *stream;
    size_t n_sent;

    fpv_create(type, &fpv);
    CHECK_ERRNO(vconn_open(fpv.vconn_name, 0, DSCP_DEFAULT, &vconn), 0);
    vconn_run(vconn);
    stream = fpv_accept(&fpv);
    fpv_destroy(&fpv);

    n_sent = 0;
    while (n_sent < out_size) {
        int retval;

        retval = stream_send(stream, (char *) out + n_sent, out_size - n_sent);
        if (retval > 0) {
            n_sent += retval;
        } else if (retval == -EAGAIN) {
            stream_run(stream);
            vconn_run(vconn);
            stream_recv_wait(stream);
            vconn_connect_wait(vconn);
            vconn_run_wait(vconn);
            poll_block();
        } else {
            ovs_fatal(0, "stream_send returned unexpected value %d", retval);
        }
    }

    read_hello = connected = false;
    for (;;) {
       if (!read_hello) {
           struct ofp_header hello;
           int retval = stream_recv(stream, &hello, sizeof hello);
           if (retval == sizeof hello) {
               enum ofpraw raw;

               CHECK(hello.version, OFP13_VERSION);
               CHECK(ofpraw_decode_partial(&raw, &hello, sizeof hello), 0);
               CHECK(raw, OFPRAW_OFPT_HELLO);
               CHECK(ntohs(hello.length), sizeof hello);
               read_hello = true;
           } else {
               CHECK_ERRNO(retval, -EAGAIN);
           }
       }

       vconn_run(vconn);
       if (!connected) {
           int error = vconn_connect(vconn);
           if (error == expect_connect_error) {
               if (!error) {
                   connected = true;
               } else {
                   stream_close(stream);
                   vconn_close(vconn);
                   return;
               }
           } else {
               CHECK_ERRNO(error, EAGAIN);
           }
       }

       if (read_hello && connected) {
           break;
       }

       vconn_run_wait(vconn);
       if (!connected) {
           vconn_connect_wait(vconn);
       }
       if (!read_hello) {
           stream_recv_wait(stream);
       }
       poll_block();
    }
    stream_close(stream);
    CHECK_ERRNO(vconn_recv_block(vconn, &msg), EOF);
    vconn_close(vconn);
}