[Spice-devel] [PATCH 08/12] smartcard: Turn SmartcardState into a GObject

Frediano Ziglio fziglio at redhat.com
Wed Mar 23 09:38:32 UTC 2016


> 
> From: Christophe Fergeau <cfergeau at redhat.com>
> 
> This inherits from RedCharDevice. Once all char device states are
> converted, we can turn the associated vfuncs into RedCharDeviceClass
> vfuncs.
> ---
>  server/smartcard.c | 221
>  +++++++++++++++++++++++++++++------------------------
>  server/smartcard.h |  30 +++++++-
>  2 files changed, 150 insertions(+), 101 deletions(-)
> 
> diff --git a/server/smartcard.c b/server/smartcard.c
> index c63fea3..fc27bfe 100644
> --- a/server/smartcard.c
> +++ b/server/smartcard.c
> @@ -1,6 +1,6 @@
>  /* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
>  /*
> -   Copyright (C) 2010 Red Hat, Inc.
> +   Copyright (C) 2010-2015 Red Hat, Inc.
>  
>     This library is free software; you can redistribute it and/or
>     modify it under the terms of the GNU Lesser General Public
> @@ -49,7 +49,7 @@
>  // Maximal length of APDU
>  #define APDUBufSize 270
>  
> -typedef struct SmartCardDeviceState SmartCardDeviceState;
> +typedef RedCharDeviceSmartcard SmartCardDeviceState;
>  
>  typedef struct SmartCardChannelClient {
>      RedChannelClient base;
> @@ -62,7 +62,11 @@ typedef struct SmartCardChannelClient {
>                             * or was it explicitly malloced */
>  } SmartCardChannelClient;
>  
> -struct SmartCardDeviceState {
> +G_DEFINE_TYPE(RedCharDeviceSmartcard, red_char_device_smartcard,
> RED_TYPE_CHAR_DEVICE)
> +
> +#define RED_CHAR_DEVICE_SMARTCARD_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE
> ((o), RED_TYPE_CHAR_DEVICE_SMARTCARD, RedCharDeviceSmartcardPrivate))
> +
> +struct RedCharDeviceSmartcardPrivate {
>      SpiceCharDeviceState *chardev_st;
>      uint32_t             reader_id;
>      /* read_from_device buffer */
> @@ -118,7 +122,6 @@ static void
> smartcard_channel_write_to_reader(SpiceCharDeviceWriteBuffer *write_
>  static MsgItem *smartcard_char_device_on_message_from_device(
>      SmartCardDeviceState *state, VSCMsgHeader *header);
>  static SmartCardDeviceState *smartcard_device_state_new(RedsState *reds,
>  SpiceCharDeviceInstance *sin);
> -static void smartcard_device_state_free(SmartCardDeviceState* st);
>  static void smartcard_init(RedsState *reds);
>  
>  static void smartcard_read_buf_prepare(SmartCardDeviceState *state,
>  VSCMsgHeader *vheader)
> @@ -126,9 +129,9 @@ static void
> smartcard_read_buf_prepare(SmartCardDeviceState *state, VSCMsgHeader
>      uint32_t msg_len;
>  
>      msg_len = ntohl(vheader->length);
> -    if (msg_len > state->buf_size) {
> -        state->buf_size = MAX(state->buf_size * 2, msg_len +
> sizeof(VSCMsgHeader));
> -        state->buf = spice_realloc(state->buf, state->buf_size);
> +    if (msg_len > state->priv->buf_size) {
> +        state->priv->buf_size = MAX(state->priv->buf_size * 2, msg_len +
> sizeof(VSCMsgHeader));
> +        state->priv->buf = spice_realloc(state->priv->buf,
> state->priv->buf_size);
>      }
>  }
>  
> @@ -137,31 +140,31 @@ SpiceCharDeviceMsgToClient
> *smartcard_read_msg_from_device(SpiceCharDeviceInstan
>  {
>      SmartCardDeviceState *state = opaque;
>      SpiceCharDeviceInterface *sif = spice_char_device_get_interface(sin);
> -    VSCMsgHeader *vheader = (VSCMsgHeader*)state->buf;
> +    VSCMsgHeader *vheader = (VSCMsgHeader*)state->priv->buf;
>      int n;
>      int remaining;
>      int actual_length;
>  
> -    while ((n = sif->read(sin, state->buf_pos, state->buf_size -
> state->buf_used)) > 0) {
> +    while ((n = sif->read(sin, state->priv->buf_pos, state->priv->buf_size -
> state->priv->buf_used)) > 0) {
>          MsgItem *msg_to_client;
>  
> -        state->buf_pos += n;
> -        state->buf_used += n;
> -        if (state->buf_used < sizeof(VSCMsgHeader)) {
> +        state->priv->buf_pos += n;
> +        state->priv->buf_used += n;
> +        if (state->priv->buf_used < sizeof(VSCMsgHeader)) {
>              continue;
>          }
>          smartcard_read_buf_prepare(state, vheader);
>          actual_length = ntohl(vheader->length);
> -        if (state->buf_used - sizeof(VSCMsgHeader) < actual_length) {
> +        if (state->priv->buf_used - sizeof(VSCMsgHeader) < actual_length) {
>              continue;
>          }
>          msg_to_client = smartcard_char_device_on_message_from_device(state,
>          vheader);
> -        remaining = state->buf_used - sizeof(VSCMsgHeader) - actual_length;
> +        remaining = state->priv->buf_used - sizeof(VSCMsgHeader) -
> actual_length;
>          if (remaining > 0) {
> -            memcpy(state->buf, state->buf_pos, remaining);
> +            memcpy(state->priv->buf, state->priv->buf_pos, remaining);
>          }
> -        state->buf_pos = state->buf;
> -        state->buf_used = remaining;
> +        state->priv->buf_pos = state->priv->buf;
> +        state->priv->buf_used = remaining;
>          if (msg_to_client) {
>              return msg_to_client;
>          }
> @@ -186,8 +189,8 @@ static void
> smartcard_send_msg_to_client(SpiceCharDeviceMsgToClient *msg,
>                                           void *opaque)
>  {
>      SmartCardDeviceState *dev = opaque;
> -    spice_assert(dev->scc && dev->scc->base.client == client);
> -    smartcard_channel_client_pipe_add_push(&dev->scc->base, &((MsgItem
> *)msg)->base);
> +    spice_assert(dev->priv->scc && dev->priv->scc->base.client == client);
> +    smartcard_channel_client_pipe_add_push(&dev->priv->scc->base, &((MsgItem
> *)msg)->base);
>  
>  }
>  
> @@ -201,8 +204,8 @@ static void smartcard_remove_client(RedClient *client,
> void *opaque)
>      SmartCardDeviceState *dev = opaque;
>  
>      spice_printerr("smartcard  state %p, client %p", dev, client);
> -    spice_assert(dev->scc && dev->scc->base.client == client);
> -    red_channel_client_shutdown(&dev->scc->base);
> +    spice_assert(dev->priv->scc && dev->priv->scc->base.client == client);
> +    red_channel_client_shutdown(&dev->priv->scc->base);
>  }
>  
>  MsgItem *smartcard_char_device_on_message_from_device(SmartCardDeviceState
>  *state,
> @@ -221,15 +224,15 @@ MsgItem
> *smartcard_char_device_on_message_from_device(SmartCardDeviceState *stat
>              break;
>      }
>      /* We pass any VSC_Error right now - might need to ignore some? */
> -    if (state->reader_id == VSCARD_UNDEFINED_READER_ID && vheader->type !=
> VSC_Init) {
> +    if (state->priv->reader_id == VSCARD_UNDEFINED_READER_ID &&
> vheader->type != VSC_Init) {
>          spice_printerr("error: reader_id not assigned for message of type
>          %d", vheader->type);
>      }
> -    if (state->scc) {
> +    if (state->priv->scc) {
>          sent_header = spice_memdup(vheader, sizeof(*vheader) +
>          vheader->length);
>          /* We patch the reader_id, since the device only knows about itself,
>          and
>           * we know about the sum of readers. */
> -        sent_header->reader_id = state->reader_id;
> -        return smartcard_get_vsc_msg_item(&state->scc->base, sent_header);
> +        sent_header->reader_id = state->priv->reader_id;
> +        return smartcard_get_vsc_msg_item(&state->priv->scc->base,
> sent_header);
>      }
>      return NULL;
>  }
> @@ -241,7 +244,7 @@ static int smartcard_char_device_add_to_readers(RedsState
> *reds, SpiceCharDevice
>      if (g_smartcard_readers.num >= SMARTCARD_MAX_READERS) {
>          return -1;
>      }
> -    state->reader_id = g_smartcard_readers.num;
> +    state->priv->reader_id = g_smartcard_readers.num;
>      g_smartcard_readers.sin[g_smartcard_readers.num++] = char_device;
>      smartcard_init(reds);
>      return 0;
> @@ -262,7 +265,7 @@ static SpiceCharDeviceInstance
> *smartcard_readers_get_unattached(void)
>  
>      for (i = 0; i < g_smartcard_readers.num; ++i) {
>          state =
>          spice_char_device_state_opaque_get(g_smartcard_readers.sin[i]->st);
> -        if (!state->scc) {
> +        if (!state->priv->scc) {
>              return g_smartcard_readers.sin[i];
>          }
>      }
> @@ -271,48 +274,33 @@ static SpiceCharDeviceInstance
> *smartcard_readers_get_unattached(void)
>  
>  static SmartCardDeviceState *smartcard_device_state_new(RedsState *reds,
>  SpiceCharDeviceInstance *sin)
>  {
> -    SmartCardDeviceState *st;
> -    SpiceCharDeviceCallbacks chardev_cbs = { NULL, };
> -
> -    chardev_cbs.read_one_msg_from_device = smartcard_read_msg_from_device;
> -    chardev_cbs.ref_msg_to_client = smartcard_ref_msg_to_client;
> -    chardev_cbs.unref_msg_to_client = smartcard_unref_msg_to_client;
> -    chardev_cbs.send_msg_to_client = smartcard_send_msg_to_client;
> -    chardev_cbs.send_tokens_to_client = smartcard_send_tokens_to_client;
> -    chardev_cbs.remove_client = smartcard_remove_client;
> -
> -    st = spice_new0(SmartCardDeviceState, 1);
> -    st->chardev_st = spice_char_device_state_create(sin,
> -                                                    reds,
> -                                                    0, /* tokens interval */
> -                                                    ~0, /* self tokens */
> -                                                    &chardev_cbs,
> -                                                    st);
> -    st->reader_id = VSCARD_UNDEFINED_READER_ID;
> -    st->reader_added = FALSE;
> -    st->buf_size = APDUBufSize + sizeof(VSCMsgHeader);
> -    st->buf = spice_malloc(st->buf_size);
> -    st->buf_pos = st->buf;
> -    st->buf_used = 0;
> -    st->scc = NULL;
> -    return st;
> -}
> -
> -static void smartcard_device_state_free(SmartCardDeviceState* st)
> -{
> -    if (st->scc) {
> -        st->scc->smartcard_state = NULL;
> -    }
> -    free(st->buf);
> -    spice_char_device_state_destroy(st->chardev_st);
> -    free(st);
> +    RedCharDevice *char_dev;
> +    SpiceCharDeviceCallbacks char_dev_cbs = {
> +        .read_one_msg_from_device = smartcard_read_msg_from_device,
> +        .ref_msg_to_client = smartcard_ref_msg_to_client,
> +        .unref_msg_to_client = smartcard_unref_msg_to_client,
> +        .send_msg_to_client = smartcard_send_msg_to_client,
> +        .send_tokens_to_client = smartcard_send_tokens_to_client,
> +        .remove_client = smartcard_remove_client,
> +    };
> +
> +    char_dev = g_object_new(RED_TYPE_CHAR_DEVICE_SMARTCARD,
> +                            "sin", sin,
> +                            "spice-server", reds,
> +                            "client-tokens-interval", 0ULL,
> +                            "self-tokens", ~0ULL,
> +                            NULL);
> +
> +    red_char_device_set_callbacks(RED_CHAR_DEVICE(char_dev),
> +                                  &char_dev_cbs, char_dev);
> +    return RED_CHAR_DEVICE_SMARTCARD(char_dev);
>  }
>  
>  void smartcard_device_disconnect(SpiceCharDeviceInstance *char_device)
>  {
> -    SmartCardDeviceState *st =
> spice_char_device_state_opaque_get(char_device->st);
> +    g_return_if_fail(RED_IS_CHAR_DEVICE_SMARTCARD(char_device));
>  
> -    smartcard_device_state_free(st);
> +    g_object_unref(char_device);
>  }
>  
>  SpiceCharDeviceState *smartcard_device_connect(RedsState *reds,
>  SpiceCharDeviceInstance *char_device)
> @@ -321,10 +309,10 @@ SpiceCharDeviceState
> *smartcard_device_connect(RedsState *reds, SpiceCharDeviceI
>  
>      st = smartcard_device_state_new(reds, char_device);
>      if (smartcard_char_device_add_to_readers(reds, char_device) == -1) {
> -        smartcard_device_state_free(st);
> +        g_object_unref(st);
>          return NULL;
>      }
> -    return st->chardev_st;
> +    return RED_CHAR_DEVICE(st);
>  }
>  
>  static void smartcard_char_device_notify_reader_add(SmartCardDeviceState
>  *st)
> @@ -332,15 +320,15 @@ static void
> smartcard_char_device_notify_reader_add(SmartCardDeviceState *st)
>      SpiceCharDeviceWriteBuffer *write_buf;
>      VSCMsgHeader *vheader;
>  
> -    write_buf = spice_char_device_write_buffer_get(st->chardev_st, NULL,
> sizeof(vheader));
> +    write_buf = spice_char_device_write_buffer_get(RED_CHAR_DEVICE(st),
> NULL, sizeof(vheader));
>      if (!write_buf) {
>          spice_error("failed to allocate write buffer");
>          return;
>      }
> -    st->reader_added = TRUE;
> +    st->priv->reader_added = TRUE;
>      vheader = (VSCMsgHeader *)write_buf->buf;
>      vheader->type = VSC_ReaderAdd;
> -    vheader->reader_id = st->reader_id;
> +    vheader->reader_id = st->priv->reader_id;
>      vheader->length = 0;
>      smartcard_channel_write_to_reader(write_buf);
>  }
> @@ -351,10 +339,10 @@ static void
> smartcard_char_device_attach_client(SpiceCharDeviceInstance *char_de
>      SmartCardDeviceState *st =
>      spice_char_device_state_opaque_get(char_device->st);
>      int client_added;
>  
> -    spice_assert(!scc->smartcard_state && !st->scc);
> -    st->scc = scc;
> +    spice_assert(!scc->smartcard_state && !st->priv->scc);
> +    st->priv->scc = scc;
>      scc->smartcard_state = st;
> -    client_added = spice_char_device_client_add(st->chardev_st,
> +    client_added = spice_char_device_client_add(RED_CHAR_DEVICE(st),
>                                                  scc->base.client,
>                                                  FALSE, /* no flow control
>                                                  yet */
>                                                  0, /* send queue size */
> @@ -364,7 +352,7 @@ static void
> smartcard_char_device_attach_client(SpiceCharDeviceInstance *char_de
>                                                      &scc->base));
>      if (!client_added) {
>          spice_warning("failed");
> -        st->scc = NULL;
> +        st->priv->scc = NULL;
>          scc->smartcard_state = NULL;
>          red_channel_client_disconnect(&scc->base);
>      }
> @@ -375,19 +363,19 @@ static void
> smartcard_char_device_notify_reader_remove(SmartCardDeviceState *st)
>      SpiceCharDeviceWriteBuffer *write_buf;
>      VSCMsgHeader *vheader;
>  
> -    if (!st->reader_added) {
> +    if (!st->priv->reader_added) {
>          spice_debug("reader add was never sent to the device");
>          return;
>      }
> -    write_buf = spice_char_device_write_buffer_get(st->chardev_st, NULL,
> sizeof(vheader));
> +    write_buf = spice_char_device_write_buffer_get(RED_CHAR_DEVICE(st),
> NULL, sizeof(vheader));
>      if (!write_buf) {
>          spice_error("failed to allocate write buffer");
>          return;
>      }
> -    st->reader_added = FALSE;
> +    st->priv->reader_added = FALSE;
>      vheader = (VSCMsgHeader *)write_buf->buf;
>      vheader->type = VSC_ReaderRemove;
> -    vheader->reader_id = st->reader_id;
> +    vheader->reader_id = st->priv->reader_id;
>      vheader->length = 0;
>      smartcard_channel_write_to_reader(write_buf);
>  }
> @@ -400,10 +388,10 @@ static void
> smartcard_char_device_detach_client(SmartCardChannelClient *scc)
>          return;
>      }
>      st = scc->smartcard_state;
> -    spice_assert(st->scc == scc);
> -    spice_char_device_client_remove(st->chardev_st, scc->base.client);
> +    spice_assert(st->priv->scc == scc);
> +    spice_char_device_client_remove(st->priv->chardev_st, scc->base.client);
>      scc->smartcard_state = NULL;
> -    st->scc = NULL;
> +    st->priv->scc = NULL;
>  }
>  
>  static int smartcard_channel_client_config_socket(RedChannelClient *rcc)
> @@ -428,9 +416,9 @@ static uint8_t
> *smartcard_channel_alloc_msg_rcv_buf(RedChannelClient *rcc,
>  
>          spice_assert(g_smartcard_readers.num == 1);
>          st = scc->smartcard_state;
> -        spice_assert(st->scc || scc->smartcard_state);
> +        spice_assert(st->priv->scc || scc->smartcard_state);
>          spice_assert(!scc->write_buf);
> -        scc->write_buf = spice_char_device_write_buffer_get(st->chardev_st,
> rcc->client, size);
> +        scc->write_buf =
> spice_char_device_write_buffer_get(RED_CHAR_DEVICE(st), rcc->client, size);
>  
>          if (!scc->write_buf) {
>              spice_error("failed to allocate write buffer");
> @@ -456,11 +444,9 @@ static void
> smartcard_channel_release_msg_rcv_buf(RedChannelClient *rcc,
>          spice_assert(!scc->write_buf);
>          free(msg);
>      } else {
> -        SpiceCharDeviceState *dev_st;
>          if (scc->write_buf) { /* msg hasn't been pushed to the guest */
>              spice_assert(scc->write_buf->buf == msg);
> -            dev_st = scc->smartcard_state ? scc->smartcard_state->chardev_st
> : NULL;
> -            spice_char_device_write_buffer_release(dev_st, scc->write_buf);
> +
> spice_char_device_write_buffer_release(RED_CHAR_DEVICE(scc->smartcard_state),
> scc->write_buf);
>              scc->write_buf = NULL;
>          }
>      }
> @@ -514,12 +500,12 @@ static void
> smartcard_channel_send_migrate_data(RedChannelClient *rcc,
>          spice_marshaller_add_uint32(m, 0);
>          spice_debug("null char dev state");
>      } else {
> -        spice_char_device_state_migrate_data_marshall(state->chardev_st, m);
> -        spice_marshaller_add_uint8(m, state->reader_added);
> -        spice_marshaller_add_uint32(m, state->buf_used);
> +
> spice_char_device_state_migrate_data_marshall(RED_CHAR_DEVICE(state),
> m);
> +        spice_marshaller_add_uint8(m, state->priv->reader_added);
> +        spice_marshaller_add_uint32(m, state->priv->buf_used);
>          m2 = spice_marshaller_get_ptr_submarshaller(m, 0);
> -        spice_marshaller_add(m2, state->buf, state->buf_used);
> -        spice_debug("reader added %d partial read size %u",
> state->reader_added, state->buf_used);
> +        spice_marshaller_add(m2, state->priv->buf, state->priv->buf_used);
> +        spice_debug("reader added %d partial read size %u",
> state->priv->reader_added, state->priv->buf_used);
>      }
>  }
>  
> @@ -625,7 +611,7 @@ static void
> smartcard_remove_reader(SmartCardChannelClient *scc, uint32_t reader
>      }
>  
>      state = spice_char_device_state_opaque_get(char_device->st);
> -    if (state->reader_added == FALSE) {
> +    if (state->priv->reader_added == FALSE) {
>          smartcard_push_error(&scc->base, reader_id,
>              VSC_GENERAL_ERROR);
>          return;
> @@ -666,7 +652,7 @@ static void
> smartcard_channel_write_to_reader(SpiceCharDeviceWriteBuffer *write_
>      spice_assert(vheader->reader_id <= g_smartcard_readers.num);
>      sin = g_smartcard_readers.sin[vheader->reader_id];
>      st = (SmartCardDeviceState
>      *)spice_char_device_state_opaque_get(sin->st);
> -    spice_assert(!st->scc || st == st->scc->smartcard_state);
> +    spice_assert(!st->priv->scc || st == st->priv->scc->smartcard_state);
>      /* protocol requires messages to be in network endianess */
>      vheader->type = htonl(vheader->type);
>      vheader->length = htonl(vheader->length);
> @@ -675,8 +661,8 @@ static void
> smartcard_channel_write_to_reader(SpiceCharDeviceWriteBuffer *write_
>      /* pushing the buffer to the write queue; It will be released
>       * when it will be fully consumed by the device */
>      spice_char_device_write_buffer_add(sin->st, write_buf);
> -    if (st->scc && write_buf == st->scc->write_buf) {
> -        st->scc->write_buf = NULL;
> +    if (st->priv->scc && write_buf == st->priv->scc->write_buf) {
> +        st->priv->scc->write_buf = NULL;
>      }
>  }
>  
> @@ -694,13 +680,13 @@ static void
> smartcard_device_state_restore_partial_read(SmartCardDeviceState *st
>      spice_debug("read_size  %u", mig_data->read_size);
>      read_data = (uint8_t *)mig_data + mig_data->read_data_ptr -
>      sizeof(SpiceMigrateDataHeader);
>      if (mig_data->read_size < sizeof(VSCMsgHeader)) {
> -        spice_assert(state->buf_size >= mig_data->read_size);
> +        spice_assert(state->priv->buf_size >= mig_data->read_size);
>      } else {
>          smartcard_read_buf_prepare(state, (VSCMsgHeader *)read_data);
>      }
> -    memcpy(state->buf, read_data, mig_data->read_size);
> -    state->buf_used = mig_data->read_size;
> -    state->buf_pos = state->buf + mig_data->read_size;
> +    memcpy(state->priv->buf, read_data, mig_data->read_size);
> +    state->priv->buf_used = mig_data->read_size;
> +    state->priv->buf_pos = state->priv->buf + mig_data->read_size;
>  }
>  
>  static int smartcard_channel_client_handle_migrate_data(RedChannelClient
>  *rcc,
> @@ -739,10 +725,10 @@ static int
> smartcard_channel_client_handle_migrate_data(RedChannelClient *rcc,
>          }
>      }
>      spice_debug("reader added %d partial read_size %u",
>      mig_data->reader_added, mig_data->read_size);
> -    scc->smartcard_state->reader_added = mig_data->reader_added;
> +    scc->smartcard_state->priv->reader_added = mig_data->reader_added;
>  
>      smartcard_device_state_restore_partial_read(scc->smartcard_state,
>      mig_data);
> -    return spice_char_device_state_restore(scc->smartcard_state->chardev_st,
> &mig_data->base);
> +    return
> spice_char_device_state_restore(RED_CHAR_DEVICE(scc->smartcard_state),
> &mig_data->base);
>  }
>  
>  static int smartcard_channel_handle_message(RedChannelClient *rcc,
> @@ -867,3 +853,38 @@ static void smartcard_init(RedsState *reds)
>  
>      reds_register_channel(reds, &g_smartcard_channel->base);
>  }
> +
> +
> +static void
> +red_char_device_smartcard_finalize(GObject *object)
> +{
> +    RedCharDeviceSmartcard *self = RED_CHAR_DEVICE_SMARTCARD(object);
> +
> +    free(self->priv->buf);
> +    if (self->priv->scc) {
> +        self->priv->scc->smartcard_state = NULL;
> +    }
> +
> +
> G_OBJECT_CLASS(red_char_device_smartcard_parent_class)->finalize(object);
> +}
> +
> +static void
> +red_char_device_smartcard_class_init(RedCharDeviceSmartcardClass *klass)
> +{
> +    GObjectClass *object_class = G_OBJECT_CLASS(klass);
> +
> +    g_type_class_add_private(klass, sizeof (RedCharDeviceSmartcardPrivate));
> +
> +    object_class->finalize = red_char_device_smartcard_finalize;
> +}
> +
> +static void
> +red_char_device_smartcard_init(RedCharDeviceSmartcard *self)
> +{
> +    self->priv = RED_CHAR_DEVICE_SMARTCARD_PRIVATE(self);
> +
> +    self->priv->reader_id = VSCARD_UNDEFINED_READER_ID;
> +    self->priv->buf_size = APDUBufSize + sizeof(VSCMsgHeader);
> +    self->priv->buf = spice_malloc(self->priv->buf_size);
> +    self->priv->buf_pos = self->priv->buf;
> +}
> diff --git a/server/smartcard.h b/server/smartcard.h
> index 32d2367..4b00433 100644
> --- a/server/smartcard.h
> +++ b/server/smartcard.h
> @@ -1,6 +1,6 @@
>  /* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
>  /*
> -   Copyright (C) 2010 Red Hat, Inc.
> +   Copyright (C) 2010-2015 Red Hat, Inc.
>  
>     This library is free software; you can redistribute it and/or
>     modify it under the terms of the GNU Lesser General Public
> @@ -18,6 +18,34 @@
>  #ifndef __SMART_CARD_H__
>  #define __SMART_CARD_H__
>  
> +#include <glib-object.h>
> +
> +#define RED_TYPE_CHAR_DEVICE_SMARTCARD red_char_device_smartcard_get_type()
> +
> +#define RED_CHAR_DEVICE_SMARTCARD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),
> RED_TYPE_CHAR_DEVICE_SMARTCARD, RedCharDeviceSmartcard))
> +#define RED_CHAR_DEVICE_SMARTCARD_CLASS(klass)
> (G_TYPE_CHECK_CLASS_CAST((klass), RED_TYPE_CHAR_DEVICE_SMARTCARD,
> RedCharDeviceSmartcardClass))
> +#define RED_IS_CHAR_DEVICE_SMARTCARD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),
> RED_TYPE_CHAR_DEVICE_SMARTCARD))
> +#define RED_IS_CHAR_DEVICE_SMARTCARD_CLASS(klass)
> (G_TYPE_CHECK_CLASS_TYPE((klass), RED_TYPE_CHAR_DEVICE_SMARTCARD))
> +#define RED_CHAR_DEVICE_SMARTCARD_GET_CLASS(obj)
> (G_TYPE_INSTANCE_GET_CLASS((obj), RED_TYPE_CHAR_DEVICE_SMARTCARD,
> RedCharDeviceSmartcardClass))
> +
> +typedef struct RedCharDeviceSmartcard RedCharDeviceSmartcard;
> +typedef struct RedCharDeviceSmartcardClass RedCharDeviceSmartcardClass;
> +typedef struct RedCharDeviceSmartcardPrivate RedCharDeviceSmartcardPrivate;
> +
> +struct RedCharDeviceSmartcard
> +{
> +    RedCharDevice parent;
> +
> +    RedCharDeviceSmartcardPrivate *priv;
> +};
> +
> +struct RedCharDeviceSmartcardClass
> +{
> +    RedCharDeviceClass parent_class;
> +};
> +
> +GType red_char_device_smartcard_get_type(void) G_GNUC_CONST;
> +
>  /*
>   * connect to smartcard interface, used by smartcard channel
>   */

The header was much private before. What's the point in declaring
all these stuff in the header?

Frediano


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