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C++ DN_SKB_CB函数代码示例

本文整理汇总了C++中DN_SKB_CB函数的典型用法代码示例。如果您正苦于以下问题：C++ DN_SKB_CB函数的具体用法？C++ DN_SKB_CB怎么用？C++ DN_SKB_CB使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了DN_SKB_CB函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: dn_nsp_otherdata

static void dn_nsp_otherdata(struct sock *sk, struct sk_buff *skb)
{
	struct dn_scp *scp = DN_SK(sk);
	unsigned short segnum;
	struct dn_skb_cb *cb = DN_SKB_CB(skb);
	int queued = 0;

	if (skb->len < 2)
		goto out;

	cb->segnum = segnum = le16_to_cpu(*(__le16 *)skb->data);
	skb_pull(skb, 2);

	if (seq_next(scp->numoth_rcv, segnum)) {

		if (dn_queue_skb(sk, skb, SIGURG, &scp->other_receive_queue) == 0) {
			seq_add(&scp->numoth_rcv, 1);
			scp->other_report = 0;
			queued = 1;
		}
	}

	dn_nsp_send_oth_ack(sk);
out:
	if (!queued)
		kfree_skb(skb);
}
开发者ID:AlexShiLucky，项目名称:linux，代码行数:27，代码来源:dn_nsp_in.c

示例2: dn_nsp_no_socket

static int dn_nsp_no_socket(struct sk_buff *skb, unsigned short reason)
{
	struct dn_skb_cb *cb = DN_SKB_CB(skb);
	int ret = NET_RX_DROP;

	/* Must not reply to returned packets */
	if (cb->rt_flags & DN_RT_F_RTS)
		goto out;

	if ((reason != NSP_REASON_OK) && ((cb->nsp_flags & 0x0c) == 0x08)) {
		switch (cb->nsp_flags & 0x70) {
		case 0x10:
		case 0x60: /* (Retransmitted) Connect Init */
			dn_nsp_return_disc(skb, NSP_DISCINIT, reason);
			ret = NET_RX_SUCCESS;
			break;
		case 0x20: /* Connect Confirm */
			dn_nsp_return_disc(skb, NSP_DISCCONF, reason);
			ret = NET_RX_SUCCESS;
			break;
		}
	}

out:
	kfree_skb(skb);
	return ret;
}
开发者ID:AlexShiLucky，项目名称:linux，代码行数:27，代码来源:dn_nsp_in.c

示例3: dn_nsp_data

static void dn_nsp_data(struct sock *sk, struct sk_buff *skb)
{
	int queued = 0;
	unsigned short segnum;
	struct dn_skb_cb *cb = DN_SKB_CB(skb);
	struct dn_scp *scp = DN_SK(sk);

	if (skb->len < 2)
		goto out;

	cb->segnum = segnum = le16_to_cpu(*(__le16 *)skb->data);
	skb_pull(skb, 2);

	if (seq_next(scp->numdat_rcv, segnum)) {
		if (dn_queue_skb(sk, skb, SIGIO, &sk->sk_receive_queue) == 0) {
			seq_add(&scp->numdat_rcv, 1);
			queued = 1;
		}

		if ((scp->flowloc_sw == DN_SEND) && dn_congested(sk)) {
			scp->flowloc_sw = DN_DONTSEND;
			dn_nsp_send_link(sk, DN_DONTSEND, 0);
		}
	}

	dn_nsp_send_data_ack(sk);
out:
	if (!queued)
		kfree_skb(skb);
}
开发者ID:AlexShiLucky，项目名称:linux，代码行数:30，代码来源:dn_nsp_in.c

示例4: dn_nsp_queue_xmit

void dn_nsp_queue_xmit(struct sock *sk, struct sk_buff *skb,
			gfp_t gfp, int oth)
{
	struct dn_scp *scp = DN_SK(sk);
	struct dn_skb_cb *cb = DN_SKB_CB(skb);
	unsigned long t = ((scp->nsp_srtt >> 2) + scp->nsp_rttvar) >> 1;

	cb->xmit_count = 0;
	dn_nsp_mk_data_header(sk, skb, oth);

	/*
	 * Slow start: If we have been idle for more than
	 * one RTT, then reset window to min size.
	 */
	if ((jiffies - scp->stamp) > t)
		scp->snd_window = NSP_MIN_WINDOW;

	if (oth)
		skb_queue_tail(&scp->other_xmit_queue, skb);
	else
		skb_queue_tail(&scp->data_xmit_queue, skb);

	if (scp->flowrem_sw != DN_SEND)
		return;

	dn_nsp_clone_and_send(skb, gfp);
}
开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:27，代码来源:dn_nsp_out.c

示例5: dn_log_martian

static void dn_log_martian(struct sk_buff *skb, const char *msg)
{
	if (decnet_log_martians && net_ratelimit()) {
		char *devname = skb->dev ? skb->dev->name : "???";
		struct dn_skb_cb *cb = DN_SKB_CB(skb);
		printk(KERN_INFO "DECnet: Martian packet (%s) dev=%s src=0x%04hx dst=0x%04hx srcport=0x%04hx dstport=0x%04hx\n", msg, devname, dn_ntohs(cb->src), dn_ntohs(cb->dst), dn_ntohs(cb->src_port), dn_ntohs(cb->dst_port));
	}
}
开发者ID:Mr-Aloof，项目名称:wl500g，代码行数:8，代码来源:dn_nsp_in.c

示例6: dn_nsp_return_disc

void dn_nsp_return_disc(struct sk_buff *skb, unsigned char msgflg,
			unsigned short reason)
{
	struct dn_skb_cb *cb = DN_SKB_CB(skb);
	int ddl = 0;
	gfp_t gfp = GFP_ATOMIC;

	dn_nsp_do_disc(NULL, msgflg, reason, gfp, skb_dst(skb), ddl,
			NULL, cb->src_port, cb->dst_port);
}
开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:10，代码来源:dn_nsp_out.c

示例7: dn_nsp_disc_init

static void dn_nsp_disc_init(struct sock *sk, struct sk_buff *skb)
{
	struct dn_scp *scp = DN_SK(sk);
	struct dn_skb_cb *cb = DN_SKB_CB(skb);
	unsigned short reason;

	if (skb->len < 2)
		goto out;

	reason = dn_ntohs(*(__u16 *)skb->data);
	skb_pull(skb, 2);

	scp->discdata_in.opt_status = reason;
	scp->discdata_in.opt_optl   = 0;
	memset(scp->discdata_in.opt_data, 0, 16);

	if (skb->len > 0) {
		unsigned char dlen = *skb->data;
		if ((dlen <= 16) && (dlen <= skb->len)) {
			scp->discdata_in.opt_optl = dlen;
			memcpy(scp->discdata_in.opt_data, skb->data + 1, dlen);
		}
	}

	scp->addrrem = cb->src_port;
	sk->state    = TCP_CLOSE;

	switch(scp->state) {
		case DN_CI:
		case DN_CD:
			scp->state = DN_RJ;
			break;
		case DN_RUN:
			sk->shutdown |= SHUTDOWN_MASK;
			scp->state = DN_DN;
			break;
		case DN_DI:
			scp->state = DN_DIC;
			break;
	}

	if (!sk->dead) {
		if (sk->socket->state != SS_UNCONNECTED)
			sk->socket->state = SS_DISCONNECTING;
		sk->state_change(sk);
	}

	dn_nsp_send_disc(sk, NSP_DISCCONF, NSP_REASON_DC, GFP_ATOMIC);
	scp->persist_fxn = dn_destroy_timer;
	scp->persist = dn_nsp_persist(sk);

out:
	kfree_skb(skb);
}
开发者ID:iwangv，项目名称:edimax-br-6528n，代码行数:54，代码来源:dn_nsp_in.c

示例8: dn_log_martian

static void dn_log_martian(struct sk_buff *skb, const char *msg)
{
	if (decnet_log_martians) {
		char *devname = skb->dev ? skb->dev->name : "???";
		struct dn_skb_cb *cb = DN_SKB_CB(skb);
		net_info_ratelimited("DECnet: Martian packet (%s) dev=%s src=0x%04hx dst=0x%04hx srcport=0x%04hx dstport=0x%04hx\n",
				     msg, devname,
				     le16_to_cpu(cb->src),
				     le16_to_cpu(cb->dst),
				     le16_to_cpu(cb->src_port),
				     le16_to_cpu(cb->dst_port));
	}
}
开发者ID:AlexShiLucky，项目名称:linux，代码行数:13，代码来源:dn_nsp_in.c

示例9: dn_nsp_clone_and_send

static inline unsigned dn_nsp_clone_and_send(struct sk_buff *skb,
					     gfp_t gfp)
{
	struct dn_skb_cb *cb = DN_SKB_CB(skb);
	struct sk_buff *skb2;
	int ret = 0;

	if ((skb2 = skb_clone(skb, gfp)) != NULL) {
		ret = cb->xmit_count;
		cb->xmit_count++;
		cb->stamp = jiffies;
		skb2->sk = skb->sk;
		dn_nsp_send(skb2);
	}

	return ret;
}
开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:17，代码来源:dn_nsp_out.c

示例10: DN_SK

static __le16 *dn_nsp_mk_data_header(struct sock *sk, struct sk_buff *skb, int oth)
{
	struct dn_scp *scp = DN_SK(sk);
	struct dn_skb_cb *cb = DN_SKB_CB(skb);
	__le16 *ptr = dn_mk_ack_header(sk, skb, cb->nsp_flags, 11, oth);

	if (unlikely(oth)) {
		cb->segnum = scp->numoth;
		seq_add(&scp->numoth, 1);
	} else {
		cb->segnum = scp->numdat;
		seq_add(&scp->numdat, 1);
	}
	*(ptr++) = cpu_to_le16(cb->segnum);

	return ptr;
}
开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:17，代码来源:dn_nsp_out.c

示例11: dn_long_output

static int dn_long_output(struct sk_buff *skb)
{
    struct dst_entry *dst = skb->dst;
    struct neighbour *neigh = dst->neighbour;
    struct net_device *dev = neigh->dev;
    int headroom = dev->hard_header_len + sizeof(struct dn_long_packet) + 3;
    unsigned char *data;
    struct dn_long_packet *lp;
    struct dn_skb_cb *cb = DN_SKB_CB(skb);


    if (skb_headroom(skb) < headroom) {
        struct sk_buff *skb2 = skb_realloc_headroom(skb, headroom);
        if (skb2 == NULL) {
            if (net_ratelimit())
                printk(KERN_CRIT "dn_long_output: no memory\n");
            kfree_skb(skb);
            return -ENOBUFS;
        }
        kfree_skb(skb);
        skb = skb2;
        if (net_ratelimit())
            printk(KERN_INFO "dn_long_output: Increasing headroom\n");
    }

    data = skb_push(skb, sizeof(struct dn_long_packet) + 3);
    lp = (struct dn_long_packet *)(data+3);

    *((unsigned short *)data) = dn_htons(skb->len - 2);
    *(data + 2) = 1 | DN_RT_F_PF; /* Padding */

    lp->msgflg   = DN_RT_PKT_LONG|(cb->rt_flags&(DN_RT_F_IE|DN_RT_F_RQR|DN_RT_F_RTS));
    lp->d_area   = lp->d_subarea = 0;
    dn_dn2eth(lp->d_id, dn_ntohs(cb->dst));
    lp->s_area   = lp->s_subarea = 0;
    dn_dn2eth(lp->s_id, dn_ntohs(cb->src));
    lp->nl2      = 0;
    lp->visit_ct = cb->hops & 0x3f;
    lp->s_class  = 0;
    lp->pt       = 0;

    skb->nh.raw = skb->data;

    return NF_HOOK(PF_DECnet, NF_DN_POST_ROUTING, skb, NULL, neigh->dev, dn_neigh_output_packet);
}
开发者ID:iPodLinux，项目名称:linux-2.6.7-ipod，代码行数:45，代码来源:dn_neigh.c

示例12: dn_nsp_conn_conf

static void dn_nsp_conn_conf(struct sock *sk, struct sk_buff *skb)
{
	struct dn_skb_cb *cb = DN_SKB_CB(skb);
	struct dn_scp *scp = DN_SK(sk);
	unsigned char *ptr;

	if (skb->len < 4)
		goto out;

	ptr = skb->data;
	cb->services = *ptr++;
	cb->info = *ptr++;
	cb->segsize = le16_to_cpu(*(__le16 *)ptr);

	if ((scp->state == DN_CI) || (scp->state == DN_CD)) {
		scp->persist = 0;
		scp->addrrem = cb->src_port;
		sk->sk_state = TCP_ESTABLISHED;
		scp->state = DN_RUN;
		scp->services_rem = cb->services;
		scp->info_rem = cb->info;
		scp->segsize_rem = cb->segsize;

		if ((scp->services_rem & NSP_FC_MASK) == NSP_FC_NONE)
			scp->max_window = decnet_no_fc_max_cwnd;

		if (skb->len > 0) {
			u16 dlen = *skb->data;
			if ((dlen <= 16) && (dlen <= skb->len)) {
				scp->conndata_in.opt_optl = cpu_to_le16(dlen);
				skb_copy_from_linear_data_offset(skb, 1,
					      scp->conndata_in.opt_data, dlen);
			}
		}
		dn_nsp_send_link(sk, DN_NOCHANGE, 0);
		if (!sock_flag(sk, SOCK_DEAD))
			sk->sk_state_change(sk);
	}

out:
	kfree_skb(skb);
}
开发者ID:AlexShiLucky，项目名称:linux，代码行数:42，代码来源:dn_nsp_in.c

示例13: dn_nsp_conn_conf

static void dn_nsp_conn_conf(struct sock *sk, struct sk_buff *skb)
{
	struct dn_skb_cb *cb = DN_SKB_CB(skb);
	struct dn_scp *scp = DN_SK(sk);
	unsigned char *ptr;

	if (skb->len < 4)
		goto out;

	ptr = skb->data;
	cb->services = *ptr++;
	cb->info = *ptr++;
	cb->segsize = dn_ntohs(*(__u16 *)ptr);

	if ((scp->state == DN_CI) || (scp->state == DN_CD)) {
		scp->persist = 0;
                scp->addrrem = cb->src_port;
                sk->state = TCP_ESTABLISHED;
                scp->state = DN_RUN;
		scp->services_rem = cb->services;
		scp->info_rem = cb->info;
		scp->segsize_rem = cb->segsize;

		if ((scp->services_rem & NSP_FC_MASK) == NSP_FC_NONE)
			scp->max_window = decnet_no_fc_max_cwnd;

		if (skb->len > 0) {
			unsigned char dlen = *skb->data;
			if ((dlen <= 16) && (dlen <= skb->len)) {
				scp->conndata_in.opt_optl = dlen;
				memcpy(scp->conndata_in.opt_data, skb->data + 1, dlen);
			}
		}
                dn_nsp_send_link(sk, DN_NOCHANGE, 0);
                if (!sk->dead)
                	sk->state_change(sk);
        }

out:
        kfree_skb(skb);
}
开发者ID:iwangv，项目名称:edimax-br-6528n，代码行数:41，代码来源:dn_nsp_in.c

示例14: dn_nsp_send_link

void dn_nsp_send_link(struct sock *sk, unsigned char lsflags, char fcval)
{
	struct dn_scp *scp = DN_SK(sk);
	struct sk_buff *skb;
	unsigned char *ptr;
	gfp_t gfp = GFP_ATOMIC;

	if ((skb = dn_alloc_skb(sk, DN_MAX_NSP_DATA_HEADER + 2, gfp)) == NULL)
		return;

	skb_reserve(skb, DN_MAX_NSP_DATA_HEADER);
	ptr = skb_put(skb, 2);
	DN_SKB_CB(skb)->nsp_flags = 0x10;
	*ptr++ = lsflags;
	*ptr = fcval;

	dn_nsp_queue_xmit(sk, skb, gfp, 1);

	scp->persist = dn_nsp_persist(sk);
	scp->persist_fxn = dn_nsp_xmit_timeout;
}
开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:21，代码来源:dn_nsp_out.c

示例15: dn_short_output

static int dn_short_output(struct sk_buff *skb)
{
    struct dst_entry *dst = skb->dst;
    struct neighbour *neigh = dst->neighbour;
    struct net_device *dev = neigh->dev;
    int headroom = dev->hard_header_len + sizeof(struct dn_short_packet) + 2;
    struct dn_short_packet *sp;
    unsigned char *data;
    struct dn_skb_cb *cb = DN_SKB_CB(skb);


    if (skb_headroom(skb) < headroom) {
        struct sk_buff *skb2 = skb_realloc_headroom(skb, headroom);
        if (skb2 == NULL) {
            if (net_ratelimit())
                printk(KERN_CRIT "dn_short_output: no memory\n");
            kfree_skb(skb);
            return -ENOBUFS;
        }
        kfree_skb(skb);
        skb = skb2;
        if (net_ratelimit())
            printk(KERN_INFO "dn_short_output: Increasing headroom\n");
    }

    data = skb_push(skb, sizeof(struct dn_short_packet) + 2);
    *((unsigned short *)data) = dn_htons(skb->len - 2);
    sp = (struct dn_short_packet *)(data+2);

    sp->msgflg     = DN_RT_PKT_SHORT|(cb->rt_flags&(DN_RT_F_RQR|DN_RT_F_RTS));
    sp->dstnode    = cb->dst;
    sp->srcnode    = cb->src;
    sp->forward    = cb->hops & 0x3f;

    skb->nh.raw = skb->data;

    return NF_HOOK(PF_DECnet, NF_DN_POST_ROUTING, skb, NULL, neigh->dev, dn_neigh_output_packet);
}
开发者ID:iPodLinux，项目名称:linux-2.6.7-ipod，代码行数:38，代码来源:dn_neigh.c


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