C++ (Cpp) cfpkt_add_head Examples

Example #1

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File: cfdgml.c Project: romanbb/android_kernel_lge_d851

static int cfdgml_transmit(struct cflayer *layr, struct cfpkt *pkt)
{
	u8 packet_type;
	u32 zero = 0;
	struct caif_payload_info *info;
	struct cfsrvl *service = container_obj(layr);
	int ret;

	if (!cfsrvl_ready(service, &ret)) {
		cfpkt_destroy(pkt);
		return ret;
	}

	/*                                                        */
	if (cfpkt_getlen(pkt) > DGM_MTU) {
		cfpkt_destroy(pkt);
		return -EMSGSIZE;
	}

	cfpkt_add_head(pkt, &zero, 3);
	packet_type = 0x08; /*                       */
	cfpkt_add_head(pkt, &packet_type, 1);

	/*                                                 */
	info = cfpkt_info(pkt);
	info->channel_id = service->layer.id;
	/*                                                         
                   
  */
	info->hdr_len = 4;
	info->dev_info = &service->dev_info;
	return layr->dn->transmit(layr->dn, pkt);
}

Example #2

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File: caif_usb.c Project: AD5GB/kernel_n5_3.10-experimental

static int cfusbl_transmit(struct cflayer *layr, struct cfpkt *pkt)
{
	struct caif_payload_info *info;
	u8 hpad;
	u8 zeros[CFUSB_ALIGNMENT];
	struct sk_buff *skb;
	struct cfusbl *usbl = container_of(layr, struct cfusbl, layer);

	skb = cfpkt_tonative(pkt);

	skb_reset_network_header(skb);
	skb->protocol = htons(ETH_P_IP);

	info = cfpkt_info(pkt);
	hpad = (info->hdr_len + CFUSB_PAD_DESCR_SZ) & (CFUSB_ALIGNMENT - 1);

	if (skb_headroom(skb) < ETH_HLEN + CFUSB_PAD_DESCR_SZ + hpad) {
		pr_warn("Headroom to small\n");
		kfree_skb(skb);
		return -EIO;
	}
	memset(zeros, 0, hpad);

	cfpkt_add_head(pkt, zeros, hpad);
	cfpkt_add_head(pkt, &hpad, 1);
	cfpkt_add_head(pkt, usbl->tx_eth_hdr, sizeof(usbl->tx_eth_hdr));
	return layr->dn->transmit(layr->dn, pkt);
}

Example #3

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static int cfdgml_transmit(struct cflayer *layr, struct cfpkt *pkt)
{
	u8 packet_type;
	u32 zero = 0;
	struct caif_payload_info *info;
	struct cfsrvl *service = container_obj(layr);
	int ret;
	if (!cfsrvl_ready(service, &ret))
		return ret;

	/* STE Modem cannot handle more than 1500 bytes datagrams */
	if (cfpkt_getlen(pkt) > DGM_MTU)
		return -EMSGSIZE;

	cfpkt_add_head(pkt, &zero, 3);
	packet_type = 0x08; /* B9 set - UNCLASSIFIED */
	cfpkt_add_head(pkt, &packet_type, 1);

	/* Add info for MUX-layer to route the packet out. */
	info = cfpkt_info(pkt);
	info->channel_id = service->layer.id;
	/* To optimize alignment, we add up the size of CAIF header
	 * before payload.
	 */
	info->hdr_len = 4;
	info->dev_info = &service->dev_info;
	return layr->dn->transmit(layr->dn, pkt);
}

Example #4

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File: cfsrvl.c Project: AllenWeb/linux

static int cfservl_modemcmd(struct cflayer *layr, enum caif_modemcmd ctrl)
{
	struct cfsrvl *service = container_obj(layr);

	caif_assert(layr != NULL);
	caif_assert(layr->dn != NULL);
	caif_assert(layr->dn->transmit != NULL);

	if (!service->supports_flowctrl)
		return 0;

	switch (ctrl) {
	case CAIF_MODEMCMD_FLOW_ON_REQ:
		{
			struct cfpkt *pkt;
			struct caif_payload_info *info;
			u8 flow_on = SRVL_FLOW_ON;
			pkt = cfpkt_create(SRVL_CTRL_PKT_SIZE);
			if (!pkt)
				return -ENOMEM;

			if (cfpkt_add_head(pkt, &flow_on, 1) < 0) {
				pr_err("Packet is erroneous!\n");
				cfpkt_destroy(pkt);
				return -EPROTO;
			}
			info = cfpkt_info(pkt);
			info->channel_id = service->layer.id;
			info->hdr_len = 1;
			info->dev_info = &service->dev_info;
			cfpkt_set_prio(pkt, TC_PRIO_CONTROL);
			return layr->dn->transmit(layr->dn, pkt);
		}
	case CAIF_MODEMCMD_FLOW_OFF_REQ:
		{
			struct cfpkt *pkt;
			struct caif_payload_info *info;
			u8 flow_off = SRVL_FLOW_OFF;
			pkt = cfpkt_create(SRVL_CTRL_PKT_SIZE);
			if (!pkt)
				return -ENOMEM;

			if (cfpkt_add_head(pkt, &flow_off, 1) < 0) {
				pr_err("Packet is erroneous!\n");
				cfpkt_destroy(pkt);
				return -EPROTO;
			}
			info = cfpkt_info(pkt);
			info->channel_id = service->layer.id;
			info->hdr_len = 1;
			info->dev_info = &service->dev_info;
			cfpkt_set_prio(pkt, TC_PRIO_CONTROL);
			return layr->dn->transmit(layr->dn, pkt);
		}
	default:
	  break;
	}
	return -EINVAL;
}

Example #5

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File: cfveil.c Project: 3sOx/asuswrt-merlin

static int cfvei_transmit(struct cflayer *layr, struct cfpkt *pkt)
{
	u8 tmp = 0;
	struct caif_payload_info *info;
	int ret;
	struct cfsrvl *service = container_obj(layr);
	if (!cfsrvl_ready(service, &ret))
		return ret;
	caif_assert(layr->dn != NULL);
	caif_assert(layr->dn->transmit != NULL);

	if (cfpkt_add_head(pkt, &tmp, 1) < 0) {
		pr_err("CAIF: %s(): Packet is erroneous!\n", __func__);
		return -EPROTO;
	}

	/* Add info-> for MUX-layer to route the packet out. */
	info = cfpkt_info(pkt);
	info->channel_id = service->layer.id;
	info->hdr_len = 1;
	info->dev_info = &service->dev_info;
	ret = layr->dn->transmit(layr->dn, pkt);
	if (ret < 0)
		cfpkt_extr_head(pkt, &tmp, 1);
	return ret;
}

Example #6

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File: cfrfml.c Project: virtuoso/linux-2.6

static int cfrfml_transmit(struct cflayer *layr, struct cfpkt *pkt)
{
    u8 tmp = 0;
    int ret;
    struct cfsrvl *service = container_obj(layr);

    caif_assert(layr->dn != NULL);
    caif_assert(layr->dn->transmit != NULL);

    if (!cfsrvl_ready(service, &ret))
        return ret;

    if (!cfpkt_getlen(pkt) > CAIF_MAX_PAYLOAD_SIZE) {
        pr_err("CAIF: %s():Packet too large - size=%d\n",
               __func__, cfpkt_getlen(pkt));
        return -EOVERFLOW;
    }
    if (cfpkt_add_head(pkt, &tmp, 1) < 0) {
        pr_err("CAIF: %s(): Packet is erroneous!\n", __func__);
        return -EPROTO;
    }

    /* Add info for MUX-layer to route the packet out. */
    cfpkt_info(pkt)->channel_id = service->layer.id;
    /*
     * To optimize alignment, we add up the size of CAIF header before
     * payload.
     */
    cfpkt_info(pkt)->hdr_len = 1;
    cfpkt_info(pkt)->dev_info = &service->dev_info;
    ret = layr->dn->transmit(layr->dn, pkt);
    if (ret < 0)
        cfpkt_extr_head(pkt, &tmp, 1);
    return ret;
}

Example #7

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File: cfdgml.c Project: 12rafael/jellytimekernel

static int cfdgml_transmit(struct cflayer *layr, struct cfpkt *pkt)
{
	u32 zero = 0;
	struct caif_payload_info *info;
	struct cfsrvl *service = container_obj(layr);
	int ret;
	if (!cfsrvl_ready(service, &ret))
		return ret;

	cfpkt_add_head(pkt, &zero, 4);

	/* Add info for MUX-layer to route the packet out. */
	info = cfpkt_info(pkt);
	info->channel_id = service->layer.id;
	/* To optimize alignment, we add up the size of CAIF header
	 * before payload.
	 */
	info->hdr_len = 4;
	info->dev_info = &service->dev_info;
	ret = layr->dn->transmit(layr->dn, pkt);
	if (ret < 0) {
		u32 tmp32;
		cfpkt_extr_head(pkt, &tmp32, 4);
	}
	return ret;
}

Example #8

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File: cfveil.c Project: MiniBlu/cm11_kernel_htc_msm8974a3ul

static int cfvei_transmit(struct cflayer *layr, struct cfpkt *pkt)
{
	u8 tmp = 0;
	struct caif_payload_info *info;
	int ret;
	struct cfsrvl *service = container_obj(layr);
	if (!cfsrvl_ready(service, &ret))
		goto err;
	caif_assert(layr->dn != NULL);
	caif_assert(layr->dn->transmit != NULL);

	if (cfpkt_add_head(pkt, &tmp, 1) < 0) {
		pr_err("Packet is erroneous!\n");
		ret = -EPROTO;
		goto err;
	}

	
	info = cfpkt_info(pkt);
	info->channel_id = service->layer.id;
	info->hdr_len = 1;
	info->dev_info = &service->dev_info;
	return layr->dn->transmit(layr->dn, pkt);
err:
	cfpkt_destroy(pkt);
	return ret;
}

Example #9

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File: cfpkt_skbuff.c Project: AlexShiLucky/linux

int cfpkt_peek_head(struct cfpkt *pkt, void *data, u16 len)
{
	struct sk_buff *skb = pkt_to_skb(pkt);
	if (skb_headlen(skb) >= len) {
		memcpy(data, skb->data, len);
		return 0;
	}
	return !cfpkt_extr_head(pkt, data, len) &&
	    !cfpkt_add_head(pkt, data, len);
}

Example #10

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File: cfvidl.c Project: flwh/Alcatel_OT_985_kernel

static int cfvidl_transmit(struct cflayer *layr, struct cfpkt *pkt)
{
	struct cfsrvl *service = container_obj(layr);
	struct caif_payload_info *info;
	u32 videoheader = 0;
	int ret;
	if (!cfsrvl_ready(service, &ret))
		return ret;
	cfpkt_add_head(pkt, &videoheader, 4);
	/* Add info for MUX-layer to route the packet out */
	info = cfpkt_info(pkt);
	info->channel_id = service->layer.id;
	info->dev_info = &service->dev_info;
	ret = layr->dn->transmit(layr->dn, pkt);
	if (ret < 0)
		cfpkt_extr_head(pkt, &videoheader, 4);
	return ret;
}

Example #11

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File: cfvidl.c Project: romanbb/android_kernel_lge_d851

static int cfvidl_transmit(struct cflayer *layr, struct cfpkt *pkt)
{
	struct cfsrvl *service = container_obj(layr);
	struct caif_payload_info *info;
	u32 videoheader = 0;
	int ret;

	if (!cfsrvl_ready(service, &ret)) {
		cfpkt_destroy(pkt);
		return ret;
	}

	cfpkt_add_head(pkt, &videoheader, 4);
	/*                                                */
	info = cfpkt_info(pkt);
	info->channel_id = service->layer.id;
	info->dev_info = &service->dev_info;
	return layr->dn->transmit(layr->dn, pkt);
}