C++ pnp_hdr函数代码示例

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本文整理汇总了C++中pnp_hdr函数的典型用法代码示例。如果您正苦于以下问题：C++ pnp_hdr函数的具体用法？C++ pnp_hdr怎么用？C++ pnp_hdr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pnp_hdr函数的20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，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: pep_ctrlreq_error

/* Control requests are not sent by the pipe service and have a specific
 * message format. */
static int pep_ctrlreq_error(struct sock *sk, struct sk_buff *oskb, u8 code,
				gfp_t priority)
{
	const struct pnpipehdr *oph = pnp_hdr(oskb);
	struct sk_buff *skb;
	struct pnpipehdr *ph;
	struct sockaddr_pn dst;
	u8 data[4] = {
		oph->data[0], /* PEP type */
		code, /* error code, at an unusual offset */
		PAD, PAD,
	};

	skb = pep_alloc_skb(sk, data, 4, priority);
	if (!skb)
		return -ENOMEM;

	ph = pnp_hdr(skb);
	ph->utid = oph->utid;
	ph->message_id = PNS_PEP_CTRL_RESP;
	ph->pipe_handle = oph->pipe_handle;
	ph->data[0] = oph->data[1]; /* CTRL id */

	pn_skb_get_src_sockaddr(oskb, &dst);
	return pn_skb_send(sk, skb, &dst);
}

开发者ID:1yankeedt，项目名称:D710BST_FL24_Kernel，代码行数:28，代码来源:pep.c

示例2: pep_do_rcv

/*
 * Deliver an skb to a listening sock.
 * Socket lock must be held.
 * We then queue the skb to the right connected sock (if any).
 */
static int pep_do_rcv(struct sock *sk, struct sk_buff *skb)
{
	struct pep_sock *pn = pep_sk(sk);
	struct sock *sknode;
	struct pnpipehdr *hdr;
	struct sockaddr_pn dst;
	u8 pipe_handle;

	if (!pskb_may_pull(skb, sizeof(*hdr)))
		goto drop;

	hdr = pnp_hdr(skb);
	pipe_handle = hdr->pipe_handle;
	if (pipe_handle == PN_PIPE_INVALID_HANDLE)
		goto drop;

	pn_skb_get_dst_sockaddr(skb, &dst);

	/* Look for an existing pipe handle */
	sknode = pep_find_pipe(&pn->hlist, &dst, pipe_handle);
	if (sknode)
		return sk_receive_skb(sknode, skb, 1);

	switch (hdr->message_id) {
	case PNS_PEP_CONNECT_REQ:
		if (sk->sk_state != TCP_LISTEN || sk_acceptq_is_full(sk)) {
			pep_reject_conn(sk, skb, PN_PIPE_ERR_PEP_IN_USE,
					GFP_ATOMIC);
			break;
		}
		skb_queue_head(&sk->sk_receive_queue, skb);
		sk_acceptq_added(sk);
		if (!sock_flag(sk, SOCK_DEAD))
			sk->sk_data_ready(sk, 0);
		return NET_RX_SUCCESS;

	case PNS_PEP_DISCONNECT_REQ:
		pep_reply(sk, skb, PN_PIPE_NO_ERROR, NULL, 0, GFP_ATOMIC);
		break;

	case PNS_PEP_CTRL_REQ:
		pep_ctrlreq_error(sk, skb, PN_PIPE_INVALID_HANDLE, GFP_ATOMIC);
		break;

	case PNS_PEP_RESET_REQ:
	case PNS_PEP_ENABLE_REQ:
	case PNS_PEP_DISABLE_REQ:
		/* invalid handle is not even allowed here! */
		break;

	default:
		if ((1 << sk->sk_state)
				& ~(TCPF_CLOSE|TCPF_LISTEN|TCPF_CLOSE_WAIT))
			/* actively connected socket */
			return pipe_handler_do_rcv(sk, skb);
	}
drop:
	kfree_skb(skb);
	return NET_RX_SUCCESS;
}

开发者ID:33d，项目名称:linux-2.6.21-hh20，代码行数:65，代码来源:pep.c

示例3: pep_ctrlreq_error

static int pep_ctrlreq_error(struct sock *sk, struct sk_buff *oskb, u8 code,
				gfp_t priority)
{
	const struct pnpipehdr *oph = pnp_hdr(oskb);
	struct sk_buff *skb;
	struct pnpipehdr *ph;
	struct sockaddr_pn dst;

	skb = alloc_skb(MAX_PNPIPE_HEADER + 4, priority);
	if (!skb)
		return -ENOMEM;
	skb_set_owner_w(skb, sk);

	skb_reserve(skb, MAX_PHONET_HEADER);
	ph = (struct pnpipehdr *)skb_put(skb, sizeof(*ph) + 4);

	ph->utid = oph->utid;
	ph->message_id = PNS_PEP_CTRL_RESP;
	ph->pipe_handle = oph->pipe_handle;
	ph->data[0] = oph->data[1]; /* CTRL id */
	ph->data[1] = oph->data[0]; /* PEP type */
	ph->data[2] = code; /* error code, at an usual offset */
	ph->data[3] = PAD;
	ph->data[4] = PAD;

	pn_skb_get_src_sockaddr(oskb, &dst);
	return pn_skb_send(sk, skb, &dst);
}

开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:28，代码来源:pep.c

示例4: pipe_snd_status

static int pipe_snd_status(struct sock *sk, u8 type, u8 status, gfp_t priority)
{
	struct pep_sock *pn = pep_sk(sk);
	struct pnpipehdr *ph;
	struct sk_buff *skb;

	skb = alloc_skb(MAX_PNPIPE_HEADER + 4, priority);
	if (!skb)
		return -ENOMEM;
	skb_set_owner_w(skb, sk);

	skb_reserve(skb, MAX_PNPIPE_HEADER + 4);
	__skb_push(skb, sizeof(*ph) + 4);
	skb_reset_transport_header(skb);
	ph = pnp_hdr(skb);
	ph->utid = 0;
	ph->message_id = PNS_PEP_STATUS_IND;
	ph->pipe_handle = pn->pipe_handle;
	ph->pep_type = PN_PEP_TYPE_COMMON;
	ph->data[1] = type;
	ph->data[2] = PAD;
	ph->data[3] = PAD;
	ph->data[4] = status;

	return pn_skb_send(sk, skb, &pipe_srv);
}

开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:26，代码来源:pep.c

示例5: pipe_skb_send

static int pipe_skb_send(struct sock *sk, struct sk_buff *skb)
{
	struct pep_sock *pn = pep_sk(sk);
	struct pnpipehdr *ph;
	int err;

	if (pn_flow_safe(pn->tx_fc) &&
	    !atomic_add_unless(&pn->tx_credits, -1, 0)) {
		kfree_skb(skb);
		return -ENOBUFS;
	}

	skb_push(skb, 3 + pn->aligned);
	skb_reset_transport_header(skb);
	ph = pnp_hdr(skb);
	ph->utid = 0;
	if (pn->aligned) {
		ph->message_id = PNS_PIPE_ALIGNED_DATA;
		ph->data[0] = 0; /* padding */
	} else
		ph->message_id = PNS_PIPE_DATA;
	ph->pipe_handle = pn->pipe_handle;
	err = pn_skb_send(sk, skb, NULL);

	if (err && pn_flow_safe(pn->tx_fc))
		atomic_inc(&pn->tx_credits);
	return err;

}

开发者ID:33d，项目名称:linux-2.6.21-hh20，代码行数:29，代码来源:pep.c

示例6: pipe_rcv_created

static int pipe_rcv_created(struct sock *sk, struct sk_buff *skb)
{
	struct pep_sock *pn = pep_sk(sk);
	struct pnpipehdr *hdr = pnp_hdr(skb);
	u8 n_sb = hdr->data[0];

	pn->rx_fc = pn->tx_fc = PN_LEGACY_FLOW_CONTROL;
	__skb_pull(skb, sizeof(*hdr));
	while (n_sb > 0) {
		u8 type, buf[2], len = sizeof(buf);
		u8 *data = pep_get_sb(skb, &type, &len, buf);

		if (data == NULL)
			return -EINVAL;
		switch (type) {
		case PN_PIPE_SB_NEGOTIATED_FC:
			if (len < 2 || (data[0] | data[1]) > 3)
				break;
			pn->tx_fc = data[0] & 3;
			pn->rx_fc = data[1] & 3;
			break;
		}
		n_sb--;
	}
	return 0;
}

开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:26，代码来源:pep.c

示例7: pep_do_rcv

/*
 * Deliver an skb to a listening sock.
 * Socket lock must be held.
 * We then queue the skb to the right connected sock (if any).
 */
static int pep_do_rcv(struct sock *sk, struct sk_buff *skb)
{
	struct pep_sock *pn = pep_sk(sk);
	struct sock *sknode;
	struct pnpipehdr *hdr;
	struct sockaddr_pn dst;
	u8 pipe_handle;

	if (!pskb_may_pull(skb, sizeof(*hdr)))
		goto drop;

	hdr = pnp_hdr(skb);
	pipe_handle = hdr->pipe_handle;
	if (pipe_handle == PN_PIPE_INVALID_HANDLE)
		goto drop;

	pn_skb_get_dst_sockaddr(skb, &dst);

	/* Look for an existing pipe handle */
	sknode = pep_find_pipe(&pn->hlist, &dst, pipe_handle);
	if (sknode)
		return sk_receive_skb(sknode, skb, 1);

	switch (hdr->message_id) {
	case PNS_PEP_CONNECT_REQ:
		if (sk->sk_state != TCP_LISTEN || sk_acceptq_is_full(sk)) {
			pep_reject_conn(sk, skb, PN_PIPE_ERR_PEP_IN_USE,
					GFP_ATOMIC);
			break;
		}
		skb_queue_head(&sk->sk_receive_queue, skb);
		sk_acceptq_added(sk);
		if (!sock_flag(sk, SOCK_DEAD))

开发者ID:raghavendraba，项目名称:linux，代码行数:38，代码来源:pep.c

示例8: pep_do_rcv

static int pep_do_rcv(struct sock *sk, struct sk_buff *skb)
{
	struct pep_sock *pn = pep_sk(sk);
	struct sock *sknode;
	struct pnpipehdr *hdr;
	struct sockaddr_pn dst;
	int err = NET_RX_SUCCESS;
	u8 pipe_handle;

	if (!pskb_may_pull(skb, sizeof(*hdr)))
		goto drop;

	hdr = pnp_hdr(skb);
	pipe_handle = hdr->pipe_handle;
	if (pipe_handle == PN_PIPE_INVALID_HANDLE)
		goto drop;

	pn_skb_get_dst_sockaddr(skb, &dst);

	/* Look for an existing pipe handle */
	sknode = pep_find_pipe(&pn->hlist, &dst, pipe_handle);
	if (sknode)
		return sk_receive_skb(sknode, skb, 1);

	/* Look for a pipe handle pending accept */
	sknode = pep_find_pipe(&pn->ackq, &dst, pipe_handle);
	if (sknode) {
		sock_put(sknode);
		if (net_ratelimit())
			printk(KERN_WARNING"Phonet unconnected PEP ignored");
		err = NET_RX_DROP;
		goto drop;
	}

	switch (hdr->message_id) {
	case PNS_PEP_CONNECT_REQ:
		err = pep_connreq_rcv(sk, skb);
		break;

	case PNS_PEP_DISCONNECT_REQ:
		pep_reply(sk, skb, PN_PIPE_NO_ERROR, NULL, 0, GFP_ATOMIC);
		break;

	case PNS_PEP_CTRL_REQ:
		pep_ctrlreq_error(sk, skb, PN_PIPE_INVALID_HANDLE, GFP_ATOMIC);
		break;

	case PNS_PEP_RESET_REQ:
	case PNS_PEP_ENABLE_REQ:
	case PNS_PEP_DISABLE_REQ:
		/* invalid handle is not even allowed here! */
	default:
		err = NET_RX_DROP;
	}
drop:
	kfree_skb(skb);
	return err;
}

开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:58，代码来源:pep.c

示例9: pep_enableresp_rcv

static int pep_enableresp_rcv(struct sock *sk, struct sk_buff *skb)
{
	struct pnpipehdr *hdr = pnp_hdr(skb);

	if (hdr->error_code != PN_PIPE_NO_ERROR)
		return -ECONNREFUSED;

	return pep_indicate(sk, PNS_PIPE_ENABLED_IND, 0 /* sub-blocks */,
		NULL, 0, GFP_ATOMIC);

}

开发者ID:33d，项目名称:linux-2.6.21-hh20，代码行数:11，代码来源:pep.c

示例10: pep_reply

static int pep_reply(struct sock *sk, struct sk_buff *oskb, u8 code,
			const void *data, int len, gfp_t priority)
{
	const struct pnpipehdr *oph = pnp_hdr(oskb);
	struct pnpipehdr *ph;
	struct sk_buff *skb;
	struct sockaddr_pn peer;

	skb = pep_alloc_skb(sk, data, len, priority);
	if (!skb)
		return -ENOMEM;

	ph = pnp_hdr(skb);
	ph->utid = oph->utid;
	ph->message_id = oph->message_id + 1; /* REQ -> RESP */
	ph->pipe_handle = oph->pipe_handle;
	ph->error_code = code;

	pn_skb_get_src_sockaddr(oskb, &peer);
	return pn_skb_send(sk, skb, &peer);
}

开发者ID:33d，项目名称:linux-2.6.21-hh20，代码行数:21，代码来源:pep.c

示例11: pipe_rcv_status

static int pipe_rcv_status(struct sock *sk, struct sk_buff *skb)
{
	struct pep_sock *pn = pep_sk(sk);
	struct pnpipehdr *hdr;
	int wake = 0;

	if (!pskb_may_pull(skb, sizeof(*hdr) + 4))
		return -EINVAL;

	hdr = pnp_hdr(skb);
	if (hdr->data[0] != PN_PEP_TYPE_COMMON) {
		LIMIT_NETDEBUG(KERN_DEBUG"Phonet unknown PEP type: %u\n",
				(unsigned)hdr->data[0]);
		return -EOPNOTSUPP;
	}

	switch (hdr->data[1]) {
	case PN_PEP_IND_FLOW_CONTROL:
		switch (pn->tx_fc) {
		case PN_LEGACY_FLOW_CONTROL:
			switch (hdr->data[4]) {
			case PEP_IND_BUSY:
				atomic_set(&pn->tx_credits, 0);
				break;
			case PEP_IND_READY:
				atomic_set(&pn->tx_credits, wake = 1);
				break;
			}
			break;
		case PN_ONE_CREDIT_FLOW_CONTROL:
			if (hdr->data[4] == PEP_IND_READY)
				atomic_set(&pn->tx_credits, wake = 1);
			break;
		}
		break;

	case PN_PEP_IND_ID_MCFC_GRANT_CREDITS:
		if (pn->tx_fc != PN_MULTI_CREDIT_FLOW_CONTROL)
			break;
		atomic_add(wake = hdr->data[4], &pn->tx_credits);
		break;

	default:
		LIMIT_NETDEBUG(KERN_DEBUG"Phonet unknown PEP indication: %u\n",
				(unsigned)hdr->data[1]);
		return -EOPNOTSUPP;
	}
	if (wake)
		sk->sk_write_space(sk);
	return 0;
}

开发者ID:33d，项目名称:linux-2.6.21-hh20，代码行数:51，代码来源:pep.c

示例12: pipe_do_remove

static int pipe_do_remove(struct sock *sk)
{
	struct pep_sock *pn = pep_sk(sk);
	struct pnpipehdr *ph;
	struct sk_buff *skb;

	skb = pep_alloc_skb(sk, NULL, 0, GFP_KERNEL);
	if (!skb)
		return -ENOMEM;

	ph = pnp_hdr(skb);
	ph->utid = 0;
	ph->message_id = PNS_PIPE_REMOVE_REQ;
	ph->pipe_handle = pn->pipe_handle;
	ph->data[0] = PAD;
	return pn_skb_send(sk, skb, NULL);
}

开发者ID:33d，项目名称:linux-2.6.21-hh20，代码行数:17，代码来源:pep.c

示例13: pep_indicate

static int pep_indicate(struct sock *sk, u8 id, u8 code,
			const void *data, int len, gfp_t priority)
{
	struct pep_sock *pn = pep_sk(sk);
	struct pnpipehdr *ph;
	struct sk_buff *skb;

	skb = pep_alloc_skb(sk, data, len, priority);
	if (!skb)
		return -ENOMEM;

	ph = pnp_hdr(skb);
	ph->utid = 0;
	ph->message_id = id;
	ph->pipe_handle = pn->pipe_handle;
	ph->data[0] = code;
	return pn_skb_send(sk, skb, NULL);
}

开发者ID:33d，项目名称:linux-2.6.21-hh20，代码行数:18，代码来源:pep.c

示例14: pipe_handler_request

static int pipe_handler_request(struct sock *sk, u8 id, u8 code,
				const void *data, int len)
{
	struct pep_sock *pn = pep_sk(sk);
	struct pnpipehdr *ph;
	struct sk_buff *skb;

	skb = pep_alloc_skb(sk, data, len, GFP_KERNEL);
	if (!skb)
		return -ENOMEM;

	ph = pnp_hdr(skb);
	ph->utid = id; /* whatever */
	ph->message_id = id;
	ph->pipe_handle = pn->pipe_handle;
	ph->data[0] = code;
	return pn_skb_send(sk, skb, NULL);
}

开发者ID:33d，项目名称:linux-2.6.21-hh20，代码行数:18，代码来源:pep.c

示例15: pipe_skb_send

static int pipe_skb_send(struct sock *sk, struct sk_buff *skb)
{
	struct pep_sock *pn = pep_sk(sk);
	struct pnpipehdr *ph;

	if (pn_flow_safe(pn->tx_fc) &&
	    !atomic_add_unless(&pn->tx_credits, -1, 0)) {
		kfree_skb(skb);
		return -ENOBUFS;
	}

	skb_push(skb, 3);
	skb_reset_transport_header(skb);
	ph = pnp_hdr(skb);
	ph->utid = 0;
	ph->message_id = PNS_PIPE_DATA;
	ph->pipe_handle = pn->pipe_handle;

	return pn_skb_send(sk, skb, &pipe_srv);
}

开发者ID:325116067，项目名称:semc-qsd8x50，代码行数:20，代码来源:pep.c

示例16: pep_connresp_rcv

static int pep_connresp_rcv(struct sock *sk, struct sk_buff *skb)
{
	struct pep_sock *pn = pep_sk(sk);
	struct pnpipehdr *hdr;
	u8 n_sb;

	if (!pskb_pull(skb, sizeof(*hdr) + 4))
		return -EINVAL;

	hdr = pnp_hdr(skb);
	if (hdr->error_code != PN_PIPE_NO_ERROR)
		return -ECONNREFUSED;

	/* Parse sub-blocks */
	n_sb = hdr->data[4];
	while (n_sb > 0) {
		u8 type, buf[6], len = sizeof(buf);
		const u8 *data = pep_get_sb(skb, &type, &len, buf);

		if (data == NULL)
			return -EINVAL;

		switch (type) {
		case PN_PIPE_SB_REQUIRED_FC_TX:
			if (len < 2 || len < data[0])
				break;
			pn->tx_fc = pipe_negotiate_fc(data + 2, len - 2);
			break;

		case PN_PIPE_SB_PREFERRED_FC_RX:
			if (len < 2 || len < data[0])
				break;
			pn->rx_fc = pipe_negotiate_fc(data + 2, len - 2);
			break;

		}
		n_sb--;
	}

	return pipe_handler_send_created_ind(sk);
}

开发者ID:33d，项目名称:linux-2.6.21-hh20，代码行数:41，代码来源:pep.c

示例17: pipe_handler_do_rcv

/* Queue an skb to an actively connected sock.
 * Socket lock must be held. */
static int pipe_handler_do_rcv(struct sock *sk, struct sk_buff *skb)
{
	struct pep_sock *pn = pep_sk(sk);
	struct pnpipehdr *hdr = pnp_hdr(skb);
	int err = NET_RX_SUCCESS;

	switch (hdr->message_id) {
	case PNS_PIPE_ALIGNED_DATA:
		__skb_pull(skb, 1);
		/* fall through */
	case PNS_PIPE_DATA:
		__skb_pull(skb, 3); /* Pipe data header */
		if (!pn_flow_safe(pn->rx_fc)) {
			err = sock_queue_rcv_skb(sk, skb);
			if (!err)
				return NET_RX_SUCCESS;
			err = NET_RX_DROP;
			break;
		}

		if (pn->rx_credits == 0) {
			atomic_inc(&sk->sk_drops);
			err = NET_RX_DROP;
			break;
		}
		pn->rx_credits--;
		skb->dev = NULL;
		skb_set_owner_r(skb, sk);
		err = skb->len;
		skb_queue_tail(&sk->sk_receive_queue, skb);
		if (!sock_flag(sk, SOCK_DEAD))
			sk->sk_data_ready(sk, err);
		return NET_RX_SUCCESS;

	case PNS_PEP_CONNECT_RESP:
		if (sk->sk_state != TCP_SYN_SENT)
			break;
		if (!sock_flag(sk, SOCK_DEAD))
			sk->sk_state_change(sk);
		if (pep_connresp_rcv(sk, skb)) {
			sk->sk_state = TCP_CLOSE_WAIT;
			break;
		}
		if (pn->init_enable == PN_PIPE_DISABLE)
			sk->sk_state = TCP_SYN_RECV;
		else {
			sk->sk_state = TCP_ESTABLISHED;
			pipe_start_flow_control(sk);
		}
		break;

	case PNS_PEP_ENABLE_RESP:
		if (sk->sk_state != TCP_SYN_SENT)
			break;

		if (pep_enableresp_rcv(sk, skb)) {
			sk->sk_state = TCP_CLOSE_WAIT;
			break;
		}

		sk->sk_state = TCP_ESTABLISHED;
		pipe_start_flow_control(sk);
		break;

	case PNS_PEP_DISCONNECT_RESP:
		/* sock should already be dead, nothing to do */
		break;

	case PNS_PEP_STATUS_IND:
		pipe_rcv_status(sk, skb);
		break;
	}
	kfree_skb(skb);
	return err;
}

开发者ID:33d，项目名称:linux-2.6.21-hh20，代码行数:77，代码来源:pep.c

示例18: pep_connreq_rcv

static int pep_connreq_rcv(struct sock *sk, struct sk_buff *skb)
{
	struct sock *newsk;
	struct pep_sock *newpn, *pn = pep_sk(sk);
	struct pnpipehdr *hdr;
	struct sockaddr_pn dst;
	u16 peer_type;
	u8 pipe_handle, enabled, n_sb;
	u8 aligned = 0;

	if (!pskb_pull(skb, sizeof(*hdr) + 4))
		return -EINVAL;

	hdr = pnp_hdr(skb);
	pipe_handle = hdr->pipe_handle;
	switch (hdr->state_after_connect) {
	case PN_PIPE_DISABLE:
		enabled = 0;
		break;
	case PN_PIPE_ENABLE:
		enabled = 1;
		break;
	default:
		pep_reject_conn(sk, skb, PN_PIPE_ERR_INVALID_PARAM);
		return -EINVAL;
	}
	peer_type = hdr->other_pep_type << 8;

	if (unlikely(sk->sk_state != TCP_LISTEN) || sk_acceptq_is_full(sk)) {
		pep_reject_conn(sk, skb, PN_PIPE_ERR_PEP_IN_USE);
		return -ENOBUFS;
	}

	/* Parse sub-blocks (options) */
	n_sb = hdr->data[4];
	while (n_sb > 0) {
		u8 type, buf[1], len = sizeof(buf);
		const u8 *data = pep_get_sb(skb, &type, &len, buf);

		if (data == NULL)
			return -EINVAL;
		switch (type) {
		case PN_PIPE_SB_CONNECT_REQ_PEP_SUB_TYPE:
			if (len < 1)
				return -EINVAL;
			peer_type = (peer_type & 0xff00) | data[0];
			break;
		case PN_PIPE_SB_ALIGNED_DATA:
			aligned = data[0] != 0;
			break;
		}
		n_sb--;
	}

	skb = skb_clone(skb, GFP_ATOMIC);
	if (!skb)
		return -ENOMEM;

	/* Create a new to-be-accepted sock */
	newsk = sk_alloc(sock_net(sk), PF_PHONET, GFP_ATOMIC, sk->sk_prot);
	if (!newsk) {
		kfree_skb(skb);
		return -ENOMEM;
	}
	sock_init_data(NULL, newsk);
	newsk->sk_state = TCP_SYN_RECV;
	newsk->sk_backlog_rcv = pipe_do_rcv;
	newsk->sk_protocol = sk->sk_protocol;
	newsk->sk_destruct = pipe_destruct;

	newpn = pep_sk(newsk);
	pn_skb_get_dst_sockaddr(skb, &dst);
	newpn->pn_sk.sobject = pn_sockaddr_get_object(&dst);
	newpn->pn_sk.resource = pn->pn_sk.resource;
	skb_queue_head_init(&newpn->ctrlreq_queue);
	newpn->pipe_handle = pipe_handle;
	atomic_set(&newpn->tx_credits, 0);
	newpn->peer_type = peer_type;
	newpn->rx_credits = 0;
	newpn->rx_fc = newpn->tx_fc = PN_LEGACY_FLOW_CONTROL;
	newpn->init_enable = enabled;
	newpn->aligned = aligned;

	BUG_ON(!skb_queue_empty(&newsk->sk_receive_queue));
	skb_queue_head(&newsk->sk_receive_queue, skb);
	if (!sock_flag(sk, SOCK_DEAD))
		sk->sk_data_ready(sk, 0);

	sk_acceptq_added(sk);
	sk_add_node(newsk, &pn->ackq);
	return 0;
}

开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:92，代码来源:pep.c

示例19: pipe_do_rcv

static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb)
{
	struct pep_sock *pn = pep_sk(sk);
	struct pnpipehdr *hdr = pnp_hdr(skb);
	struct sk_buff_head *queue;
	int err = 0;

	BUG_ON(sk->sk_state == TCP_CLOSE_WAIT);

	switch (hdr->message_id) {
	case PNS_PEP_CONNECT_REQ:
		pep_reject_conn(sk, skb, PN_PIPE_ERR_PEP_IN_USE);
		break;

	case PNS_PEP_DISCONNECT_REQ:
		pep_reply(sk, skb, PN_PIPE_NO_ERROR, NULL, 0, GFP_ATOMIC);
		sk->sk_state = TCP_CLOSE_WAIT;
		if (!sock_flag(sk, SOCK_DEAD))
			sk->sk_state_change(sk);
		break;

	case PNS_PEP_ENABLE_REQ:
		/* Wait for PNS_PIPE_(ENABLED|REDIRECTED)_IND */
		pep_reply(sk, skb, PN_PIPE_NO_ERROR, NULL, 0, GFP_ATOMIC);
		break;

	case PNS_PEP_RESET_REQ:
		switch (hdr->state_after_reset) {
		case PN_PIPE_DISABLE:
			pn->init_enable = 0;
			break;
		case PN_PIPE_ENABLE:
			pn->init_enable = 1;
			break;
		default: /* not allowed to send an error here!? */
			err = -EINVAL;
			goto out;
		}
		/* fall through */
	case PNS_PEP_DISABLE_REQ:
		atomic_set(&pn->tx_credits, 0);
		pep_reply(sk, skb, PN_PIPE_NO_ERROR, NULL, 0, GFP_ATOMIC);
		break;

	case PNS_PEP_CTRL_REQ:
		if (skb_queue_len(&pn->ctrlreq_queue) >= PNPIPE_CTRLREQ_MAX) {
			atomic_inc(&sk->sk_drops);
			break;
		}
		__skb_pull(skb, 4);
		queue = &pn->ctrlreq_queue;
		goto queue;

	case PNS_PIPE_ALIGNED_DATA:
		__skb_pull(skb, 1);
		/* fall through */
	case PNS_PIPE_DATA:
		__skb_pull(skb, 3); /* Pipe data header */
		if (!pn_flow_safe(pn->rx_fc)) {
			err = sock_queue_rcv_skb(sk, skb);
			if (!err)
				return 0;
			break;
		}

		if (pn->rx_credits == 0) {
			atomic_inc(&sk->sk_drops);
			err = -ENOBUFS;
			break;
		}
		pn->rx_credits--;
		queue = &sk->sk_receive_queue;
		goto queue;

	case PNS_PEP_STATUS_IND:
		pipe_rcv_status(sk, skb);
		break;

	case PNS_PIPE_REDIRECTED_IND:
		err = pipe_rcv_created(sk, skb);
		break;

	case PNS_PIPE_CREATED_IND:
		err = pipe_rcv_created(sk, skb);
		if (err)
			break;
		/* fall through */
	case PNS_PIPE_RESET_IND:
		if (!pn->init_enable)
			break;
		/* fall through */
	case PNS_PIPE_ENABLED_IND:
		if (!pn_flow_safe(pn->tx_fc)) {
			atomic_set(&pn->tx_credits, 1);
			sk->sk_write_space(sk);
		}
		if (sk->sk_state == TCP_ESTABLISHED)
			break; /* Nothing to do */
		sk->sk_state = TCP_ESTABLISHED;
		pipe_grant_credits(sk);
//.........这里部分代码省略.........

开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:101，代码来源:pep.c

示例20: pep_sk

static struct sock *pep_sock_accept(struct sock *sk, int flags, int *errp)
{
	struct pep_sock *pn = pep_sk(sk), *newpn;
	struct sock *newsk = NULL;
	struct sk_buff *skb;
	struct pnpipehdr *hdr;
	struct sockaddr_pn dst, src;
	int err;
	u16 peer_type;
	u8 pipe_handle, enabled, n_sb;
	u8 aligned = 0;

	skb = skb_recv_datagram(sk, 0, flags & O_NONBLOCK, errp);
	if (!skb)
		return NULL;

	lock_sock(sk);
	if (sk->sk_state != TCP_LISTEN) {
		err = -EINVAL;
		goto drop;
	}
	sk_acceptq_removed(sk);

	err = -EPROTO;
	if (!pskb_may_pull(skb, sizeof(*hdr) + 4))
		goto drop;

	hdr = pnp_hdr(skb);
	pipe_handle = hdr->pipe_handle;
	switch (hdr->state_after_connect) {
	case PN_PIPE_DISABLE:
		enabled = 0;
		break;
	case PN_PIPE_ENABLE:
		enabled = 1;
		break;
	default:
		pep_reject_conn(sk, skb, PN_PIPE_ERR_INVALID_PARAM,
				GFP_KERNEL);
		goto drop;
	}
	peer_type = hdr->other_pep_type << 8;

	/* Parse sub-blocks (options) */
	n_sb = hdr->data[4];
	while (n_sb > 0) {
		u8 type, buf[1], len = sizeof(buf);
		const u8 *data = pep_get_sb(skb, &type, &len, buf);

		if (data == NULL)
			goto drop;
		switch (type) {
		case PN_PIPE_SB_CONNECT_REQ_PEP_SUB_TYPE:
			if (len < 1)
				goto drop;
			peer_type = (peer_type & 0xff00) | data[0];
			break;
		case PN_PIPE_SB_ALIGNED_DATA:
			aligned = data[0] != 0;
			break;
		}
		n_sb--;
	}

	/* Check for duplicate pipe handle */
	newsk = pep_find_pipe(&pn->hlist, &dst, pipe_handle);
	if (unlikely(newsk)) {
		__sock_put(newsk);
		newsk = NULL;
		pep_reject_conn(sk, skb, PN_PIPE_ERR_PEP_IN_USE, GFP_KERNEL);
		goto drop;
	}

	/* Create a new to-be-accepted sock */
	newsk = sk_alloc(sock_net(sk), PF_PHONET, GFP_KERNEL, sk->sk_prot);
	if (!newsk) {
		pep_reject_conn(sk, skb, PN_PIPE_ERR_OVERLOAD, GFP_KERNEL);
		err = -ENOBUFS;
		goto drop;
	}

	sock_init_data(NULL, newsk);
	newsk->sk_state = TCP_SYN_RECV;
	newsk->sk_backlog_rcv = pipe_do_rcv;
	newsk->sk_protocol = sk->sk_protocol;
	newsk->sk_destruct = pipe_destruct;

	newpn = pep_sk(newsk);
	pn_skb_get_dst_sockaddr(skb, &dst);
	pn_skb_get_src_sockaddr(skb, &src);
	newpn->pn_sk.sobject = pn_sockaddr_get_object(&dst);
	newpn->pn_sk.dobject = pn_sockaddr_get_object(&src);
	newpn->pn_sk.resource = pn_sockaddr_get_resource(&dst);
	sock_hold(sk);
	newpn->listener = sk;
	skb_queue_head_init(&newpn->ctrlreq_queue);
	newpn->pipe_handle = pipe_handle;
	atomic_set(&newpn->tx_credits, 0);
	newpn->ifindex = 0;
	newpn->peer_type = peer_type;
//.........这里部分代码省略.........

开发者ID:33d，项目名称:linux-2.6.21-hh20，代码行数:101，代码来源:pep.c

注：本文中的pnp_hdr函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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C++ pnp_hdr函数代码示例

示例1: pep_ctrlreq_error

示例2: pep_do_rcv

示例3: pep_ctrlreq_error

示例4: pipe_snd_status

示例5: pipe_skb_send

示例6: pipe_rcv_created

示例7: pep_do_rcv

示例8: pep_do_rcv

示例9: pep_enableresp_rcv

示例10: pep_reply

示例11: pipe_rcv_status

示例12: pipe_do_remove

示例13: pep_indicate

示例14: pipe_handler_request

示例15: pipe_skb_send

示例16: pep_connresp_rcv

示例17: pipe_handler_do_rcv

示例18: pep_connreq_rcv

示例19: pipe_do_rcv

示例20: pep_sk

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