C++ NLMSG_SPACE函数代码示例

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本文整理汇总了C++中NLMSG_SPACE函数的典型用法代码示例。如果您正苦于以下问题：C++ NLMSG_SPACE函数的具体用法？C++ NLMSG_SPACE怎么用？C++ NLMSG_SPACE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NLMSG_SPACE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: main

int main(int argc, char* argv[])
{
        sock_fd = socket(PF_NETLINK, SOCK_RAW, 21);
        memset(&msg, 0, sizeof(msg));
        memset(&src_addr, 0, sizeof(src_addr));
        src_addr.nl_family = AF_NETLINK;
        src_addr.nl_pid = getpid();  /* self pid */
        src_addr.nl_groups = 0;  /* not in mcast groups */
        bind(sock_fd, (struct sockaddr*)&src_addr, sizeof(src_addr));
        memset(&dest_addr, 0, sizeof(dest_addr));
        dest_addr.nl_family = AF_NETLINK;
        dest_addr.nl_pid = 0;   /* For Linux Kernel */
        dest_addr.nl_groups = 0; /* unicast */

        nlh=(struct nlmsghdr *)malloc(NLMSG_SPACE(MAX_PAYLOAD));
        /* Fill the netlink message header */
        nlh->nlmsg_len = NLMSG_SPACE(MAX_PAYLOAD);
        nlh->nlmsg_pid = getpid();  /* self pid */
        nlh->nlmsg_flags = 0;
        /* Fill in the netlink message payload */
        strcpy(NLMSG_DATA(nlh), "Hello you!");

        iov.iov_base = (void *)nlh;
        iov.iov_len = nlh->nlmsg_len;
        msg.msg_name = (void *)&dest_addr;
        msg.msg_namelen = sizeof(dest_addr);
        msg.msg_iov = &iov;
        msg.msg_iovlen = 1;

        printf(" Sending message. ...\n");
        sendmsg(sock_fd, &msg, 0);

        /* Read message from kernel */
        memset(nlh, 0, NLMSG_SPACE(MAX_PAYLOAD));
        printf(" Waiting message. ...\n");
        recvmsg(sock_fd, &msg, 0);
        printf(" Received message payload: %s\n",
        NLMSG_DATA(nlh));

         /* Close Netlink Socket */
        close(sock_fd);
}

开发者ID:jencce，项目名称:stuff，代码行数:42，代码来源:sender.c

示例2: sample_input

void sample_input (struct sk_buff *__skb)
{
	struct sk_buff *skb;
	struct nlmsghdr *nlh;
	unsigned int pid;
	int rc;
	int len = NLMSG_SPACE(1200);
	char data[100];
	int dlen=0;
	
	skb = skb_get(__skb);
	if (skb->len >= NLMSG_SPACE(0)) 
	{
		nlh = nlmsg_hdr(skb);
		dlen= nlh->nlmsg_len;
		pid = nlh->nlmsg_pid;/*发送进程ID */
		if(dlen>100)dlen=100;
		memset(data,0,100);
		memcpy(data,NLMSG_DATA(nlh),dlen); 
		printk("net_link: recv '%s' from process %d.\n",data,pid);
		kfree_skb(skb);
		
		skb = alloc_skb(len, GFP_ATOMIC);
		if (!skb)
		{
			printk("net_link: alloc_skb failed.\n");
			return;
		}
		nlh = nlmsg_put(skb,0,0,0,1200,0);
		nlh ->nlmsg_len=dlen;
		NETLINK_CB(skb).pid = 0;/* 发自内核*/
		memcpy(NLMSG_DATA(nlh), data, strlen(data));

		rc = netlink_unicast(nl_sk, skb, pid, MSG_DONTWAIT);
		if (rc < 0) 
		{
			printk("net_link: unicast skb error\n");
		}
		printk("net_link: send '%s' to process %d ok.\n",data,pid);
	}
	return;
}

开发者ID:gatieme，项目名称:LDD-LinuxDeviceDrivers，代码行数:42，代码来源:netlink.c

示例3: netlink_test_compute

int netlink_test_compute(int fd, struct sockaddr_nl *daddr)
{
    int res;
    char    buf[40];
    int *ptr;
    int addr_len = sizeof(struct sockaddr_nl);
    struct nlmsghdr *nlh;
 
    nlh = (struct nlmsghdr *)malloc(NLMSG_SPACE(12));
    if (!nlh) {
        printf("malloc() error.\n");
        return -1;
    }
    nlh->nlmsg_type = NLMSG_TEST_COMPUTE;
    nlh->nlmsg_flags = NLM_F_REQUEST;
    nlh->nlmsg_seq = 2;
    nlh->nlmsg_pid = getpid();
    ptr = NLMSG_DATA(nlh);
    *ptr++ = NLMSG_TEST_COMPUTE_ADD;
    *ptr++ = 3;
    *ptr = 5;
    nlh->nlmsg_len = NLMSG_LENGTH(12);
 
    res = sendto(fd, nlh, NLMSG_SPACE(12), 0, (struct sockaddr *)daddr, addr_len);
    if (res == -1) {
        printf("sendto() error.\n");
        goto error;
    }
 
    memset(buf, 0, 40);
    res = recvfrom(fd, buf, 40, 0, (struct sockaddr *)daddr, &addr_len);
    if (res == -1) {
        printf("recvfrom() error.\n");
        goto error;
    }
    ptr = NLMSG_DATA((struct nlmsghdr *)buf);
    printf("3 + 5 = %d\n", *ptr);
 
error:
    free(nlh);
    return res;
}

开发者ID:tianqiu，项目名称:c，代码行数:42，代码来源:test_netlink_user.c

示例4: nl_send_unicast_message

static void nl_send_unicast_message(int dst_pid)
{
	struct sk_buff *skb = NULL;
	struct nlmsghdr *nlh = NULL;
	int err;
	int bt_state;
	unsigned long flags;

	dev_info(shm_dev->dev, "Sending unicast message\n");

	/* prepare the NL message for unicast */
	skb = alloc_skb(NLMSG_SPACE(MAX_PAYLOAD), GFP_KERNEL);
	if (!skb) {
		dev_err(shm_dev->dev, "%s:alloc_skb failed\n", __func__);
		return;
	}

	nlh = (struct nlmsghdr *)skb->data;
	nlh->nlmsg_len = NLMSG_SPACE(MAX_PAYLOAD);
	dev_dbg(shm_dev->dev, "nlh->nlmsg_len = %d\n", nlh->nlmsg_len);

	nlh->nlmsg_pid = 0;  /* from kernel */
	nlh->nlmsg_flags = 0;

	spin_lock_irqsave(&boot_lock, flags);
	bt_state = boot_state;
	spin_unlock_irqrestore(&boot_lock, flags);

	if (bt_state == BOOT_DONE)
		*(int *)NLMSG_DATA(nlh) = SHRM_NL_STATUS_MOD_ONLINE;
	else
		*(int *)NLMSG_DATA(nlh) = SHRM_NL_STATUS_MOD_OFFLINE;

	skb_put(skb, MAX_PAYLOAD);
	/* sender is in group 1<<0 */
	NETLINK_CB(skb).pid = 0;  /* from kernel */
	NETLINK_CB(skb).dst_group = 0;

	/*unicast the message to the querying processes*/
	err = netlink_unicast(shrm_nl_sk, skb, dst_pid, MSG_DONTWAIT);
	dev_dbg(shm_dev->dev, "ret val from nl-unicast = %d\n", err);
}

开发者ID:CallMeVentus，项目名称:i9070_kernel_CoCore-P，代码行数:42，代码来源:shrm_protocol.c

示例5: print_ifinfomsg

static void
print_ifinfomsg(const unsigned int msg_len)
{
	printf("{len=%u, type=RTM_GETLINK, flags=NLM_F_DUMP"
	       ", seq=0, pid=0}, {ifi_family=AF_UNIX"
	       ", ifi_type=ARPHRD_LOOPBACK"
	       ", ifi_index=" IFINDEX_LO_STR
	       ", ifi_flags=IFF_UP, ifi_change=0}"
	       ", {{nla_len=%u, nla_type=IFLA_PORT_SELF}",
	       msg_len, msg_len - NLMSG_SPACE(hdrlen));
}

开发者ID:MIPS，项目名称:external-strace，代码行数:11，代码来源:nlattr_ifla_port.c

示例6: main

int main(int argc, char *argv[])
{
    struct sockaddr_nl saddr, daddr;
    struct nlmsghdr *nlhdr = NULL;
    struct msghdr msg;
    struct iovec iov;
    int sd;
    const char* text_line = "hello";
    int ret = -1;

    printf("pid: %d\n", getpid());

    sd = socket(AF_NETLINK, SOCK_RAW, NETLINK_USERSOCK);
    memset(&saddr, 0, sizeof(saddr));
    memset(&daddr, 0, sizeof(daddr));

    saddr.nl_family = AF_NETLINK;      
    saddr.nl_pid = getpid();
    saddr.nl_groups = 0;
    bind(sd, (struct sockaddr*)&saddr, sizeof(saddr));

    daddr.nl_family = AF_NETLINK;
    daddr.nl_pid = 0;
    daddr.nl_groups = 0;

    nlhdr = (struct nlmsghdr *)malloc(NLMSG_SPACE(1024));
    memcpy(NLMSG_DATA(nlhdr), text_line, strlen(text_line));
    memset(&msg, 0 ,sizeof(struct msghdr));

    nlhdr->nlmsg_len = NLMSG_LENGTH(strlen(text_line));
    nlhdr->nlmsg_pid = getpid();  /* self pid */
    nlhdr->nlmsg_flags = 0;

    iov.iov_base = (void *)nlhdr;
    iov.iov_len = nlhdr->nlmsg_len;
    msg.msg_name = (void *)&daddr;
    msg.msg_namelen = sizeof(daddr);
    msg.msg_iov = &iov;
    msg.msg_iovlen = 1;
    ret = sendmsg(sd, &msg, 0);
    if (-1 == ret)
    {
        perror("sendmsg");
    }

//  msg.msg_name = (void *)&saddr;
//  ret = recvmsg(sd, &msg, 0);
//  if (ret == -1)
//  {
//      perror("recvmsg");
//  }

    close(sd);
}

开发者ID:lw1a2，项目名称:test，代码行数:54，代码来源:usermode_netlink.c

示例7: nfnl_check_attributes

int nfnl_check_attributes(const struct nfnl_handle *h,
			 const struct nlmsghdr *nlh,
			 struct nfattr *nfa[])
{
	assert(h);
	assert(nlh);
	assert(nfa);

	int min_len;
	u_int8_t type = NFNL_MSG_TYPE(nlh->nlmsg_type);
	u_int8_t subsys_id = NFNL_SUBSYS_ID(nlh->nlmsg_type);
	const struct nfnl_subsys_handle *ssh;
	struct nfnl_callback *cb;

	if (subsys_id > NFNL_MAX_SUBSYS)
		return -EINVAL;

	ssh = &h->subsys[subsys_id];
 	cb = &ssh->cb[type];

#if 1
	/* checks need to be enabled as soon as this is called from
	 * somebody else than __nfnl_handle_msg */
	if (type >= ssh->cb_count)
		return -EINVAL;

	min_len = NLMSG_SPACE(sizeof(struct nfgenmsg));
	if (nlh->nlmsg_len < min_len)
		return -EINVAL;
#endif
	memset(nfa, 0, sizeof(struct nfattr *) * cb->attr_count);

	if (nlh->nlmsg_len > min_len) {
		struct nfattr *attr = NFM_NFA(NLMSG_DATA(nlh));
		int attrlen = nlh->nlmsg_len - NLMSG_ALIGN(min_len);

		while (NFA_OK(attr, attrlen)) {
			unsigned int flavor = NFA_TYPE(attr);
			if (flavor) {
				if (flavor > cb->attr_count) {
					/* we have received an attribute from
					 * the kernel which we don't understand
					 * yet. We have to silently ignore this
					 * for the sake of future compatibility */
					continue;
				}
				nfa[flavor - 1] = attr;
			}
			attr = NFA_NEXT(attr, attrlen);
		}
	}

	return 0;
}

开发者ID:hrulez，项目名称:Actiontec-V1000H，代码行数:54，代码来源:libnfnetlink.c

示例8: netlink_send

void netlink_send(void)
{
    struct sk_buff *skb;
    struct nlmsghdr *nlh;
    int a = strlen("Hi from the kernel");
    int b = strlen("Test 2");

    skb = alloc_skb(BUFFER, GFP_KERNEL);
    nlh = (struct nlmsghdr *)skb_put(skb, NLMSG_SPACE(0));
    nlh->nlmsg_flags = 0;
    nlh->nlmsg_pid = 0;
    nlh->nlmsg_seq = 0;
    memcpy(skb_tail_pointer(skb), "Hi from the kernel", strlen("Hi from the kernel")+1);
    skb_put(skb, strlen("Hi from the kernel"));
    memcpy(skb_tail_pointer(skb), "Test 2", strlen("Test 2")+1);
    skb_put(skb, strlen("Test 2"));
    nlh->nlmsg_len = skb->len - NLMSG_SPACE(0);
    printk(KERN_ALERT "a: %d b: %d skb->len: %d\n", a, b, skb->len - NLMSG_SPACE(0));
    netlink_unicast(nl_sk, skb, nlk_pid, 0);

}

开发者ID:cor3ngine，项目名称:linuxopenbsm，代码行数:21，代码来源:netlink_test3.c

示例9: __event_send

/* event_mutex supposed to be held */
static int __event_send(const void *buf, int buf_len)
{
	int res = 0, len;
	struct sk_buff *skb;
	struct nlmsghdr *nlh;
	static u32 seq; /* protected by event_mutex */

	TRACE_ENTRY();

	if (ctr_open_state != ISCSI_CTR_OPEN_STATE_OPEN)
		goto out;

	len = NLMSG_SPACE(buf_len);

	skb = alloc_skb(NLMSG_SPACE(len), GFP_KERNEL);
	if (skb == NULL) {
		PRINT_ERROR("alloc_skb() failed (len %d)", len);
		res =  -ENOMEM;
		goto out;
	}

	nlh = __nlmsg_put(skb, iscsid_pid, seq++, NLMSG_DONE,
			  len - sizeof(*nlh), 0);

	memcpy(NLMSG_DATA(nlh), buf, buf_len);
	res = netlink_unicast(nl, skb, iscsid_pid, 0);
	if (res <= 0) {
		if (res != -ECONNREFUSED)
			PRINT_ERROR("netlink_unicast() failed: %d", res);
		else
			TRACE(TRACE_MINOR, "netlink_unicast() failed: %s. "
				"Not functioning user space?",
				"Connection refused");
		goto out;
	}

out:
	TRACE_EXIT_RES(res);
	return res;
}

开发者ID:dmeister，项目名称:scst，代码行数:41，代码来源:event.c

示例10: main

int main(){
    sock_fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_USER);
    if (sock_fd < 0){
        return -1;
    } 

    memset(&src_addr, 0, sizeof(src_addr));
    src_addr.nl_family = AF_NETLINK;
    src_addr.nl_pid = getpid();

    bind(sock_fd, (struct sockaddr*)&src_addr, sizeof(src_addr));

    memset(&dst_addr, 0, sizeof(dst_addr));
    dst_addr.nl_family = AF_NETLINK;
    dst_addr.nl_pid = 0;
    dst_addr.nl_groups = 0;

    nlh = (struct nlmsghdr*)malloc(NLMSG_SPACE(MAX_PAYLOAD));    
    memset(nlh, 0, NLMSG_SPACE(MAX_PAYLOAD));
    nlh->nlmsg_len = NLMSG_SPACE(MAX_PAYLOAD);    
    nlh->nlmsg_pid = getpid();
    nlh->nlmsg_flags = 0;

    strcpy(NLMSG_DATA(nlh), "Hello");

    iov.iov_base = (void*)nlh;
    iov.iov_len = nlh->nlmsg_len;

    msg.msg_name = (void*)&dst_addr;
    msg.msg_namelen = sizeof(dst_addr);
    msg.msg_iov = &iov;
    msg.msg_iovlen = 1;

    printf("Sending message to the kernel\n");
    sendmsg(sock_fd, &msg, 0);
    printf("Received message payload: %s\n", NLMSG_DATA(nlh));
    close(sock_fd);

    return 0;
}

开发者ID:sreesurendran，项目名称:NetlinkSockets，代码行数:40，代码来源:netlink_user.c

示例11: alloc_skb

/*
 * Send Net Link interface ready indication to application daemon
 * Each netlink message will have a message of type tAniMsgHdr inside.
 */
void nl_srv_nl_ready_indication
(
   void
)
{
   struct sk_buff *skb = NULL;
   struct nlmsghdr *nlh;
   int    err;

   skb = alloc_skb(NLMSG_SPACE(sizeof(driverLoaded)), GFP_KERNEL);
   if (NULL == skb)
   {
      VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
                 "NLINK: skb alloc fail %s", __func__);
      return;
   }

   nlh = (struct nlmsghdr *)skb->data;
   nlh->nlmsg_pid = 0;  /* from kernel */
   nlh->nlmsg_flags = 0;
   nlh->nlmsg_seq = 0;
   nlh->nlmsg_len = sizeof(driverLoaded);
   vos_mem_copy(((char *)nlh) + sizeof(struct nlmsghdr),
          driverLoaded,
          sizeof(driverLoaded));
   skb_put(skb, NLMSG_SPACE(sizeof(driverLoaded)));

   /* sender is in group 1<<0 */
   NETLINK_CB(skb).dst_group = WLAN_NLINK_MCAST_GRP_ID;

   /*multicast the message to all listening processes*/
   err = netlink_broadcast(nl_srv_sock, skb, 0, 1, GFP_KERNEL);
   if (err)
   {
      VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO_LOW,
                "NLINK: Ready Indication Send Fail %s, err %d",
                __func__, err);
   }
   return;
}

开发者ID:supercairos，项目名称:android_kernel_doro_msm8916_2，代码行数:44，代码来源:wlan_nlink_srv.c

示例12: initialize

static int initialize(int32_t sock_fd)
{
    char *mesg = "Hello";

    memset(&dest_addr, 0, sizeof(dest_addr));
    dest_addr.nl_family = AF_NETLINK;
    dest_addr.nl_pid = 0; /* For Linux Kernel */
    dest_addr.nl_groups = 0; /* unicast */

    if (nlh) {
        free(nlh);
        nlh = NULL;
    }
    nlh = (struct nlmsghdr *)malloc(NLMSG_SPACE(MAX_MSG_SIZE));
    if (nlh == NULL) {
        fprintf(stderr, "Cannot allocate memory \n");
        close(sock_fd);
        return -1;
    }
    memset(nlh, 0, NLMSG_SPACE(MAX_MSG_SIZE));
    nlh->nlmsg_len = NLMSG_SPACE(MAX_MSG_SIZE);
    nlh->nlmsg_pid = getpid();
    nlh->nlmsg_type = WLAN_NL_MSG_CNSS_DIAG;
    nlh->nlmsg_flags = NLM_F_REQUEST;

    memcpy(NLMSG_DATA(nlh), mesg, strlen(mesg));

    iov.iov_base = (void *)nlh;
    iov.iov_len = nlh->nlmsg_len;
    msg.msg_name = (void *)&dest_addr;
    msg.msg_namelen = sizeof(dest_addr);
    msg.msg_iov = &iov;
    msg.msg_iovlen = 1;

    if (sendmsg(sock_fd, &msg, 0) < 0) {
        android_printf("%s error ", __func__);
        return -1;
    }
    return 1;
}

开发者ID:handelxh，项目名称:ONEPLUS2RAZOR，代码行数:40，代码来源:cld-fwlog-netlink.c

示例13: kget_host_stats

static int kget_host_stats(uint64_t transport_handle, uint32_t host_no,
		     char *host_stats)
{
	int rc = 0;
	int ev_size;
	struct iscsi_uevent ev;
	struct iovec iov[2];
	char nlm_ev[NLMSG_SPACE(sizeof(struct iscsi_uevent))];
	struct nlmsghdr *nlh;

	memset(&ev, 0, sizeof(struct iscsi_uevent));

	ev.type = ISCSI_UEVENT_GET_HOST_STATS;
	ev.transport_handle = transport_handle;
	ev.u.get_host_stats.host_no = host_no;

	iov[1].iov_base = &ev;
	iov[1].iov_len = sizeof(ev);
	rc = __kipc_call(iov, 2);
	if (rc < 0)
		return rc;

	if ((rc = nl_read(ctrl_fd, nlm_ev,
			  NLMSG_SPACE(sizeof(struct iscsi_uevent)),
			  MSG_PEEK)) < 0) {
		log_error("can not read nlm_ev, error %d", rc);
		return rc;
	}

	nlh = (struct nlmsghdr *)nlm_ev;
	ev_size = nlh->nlmsg_len - NLMSG_ALIGN(sizeof(struct nlmsghdr));

	if ((rc = nlpayload_read(ctrl_fd, (void *)host_stats,
				 ev_size, 0)) < 0) {
		log_error("can not read from NL socket, error %d", rc);
		return rc;
	}

	return rc;
}

开发者ID:cleech，项目名称:open-iscsi，代码行数:40，代码来源:netlink.c

示例14: send_unicast

static void send_unicast(int dst_pid)
{
	struct sk_buff *skb;
	struct nlmsghdr *nlh;

	if (netlink_sk == NULL) {
		pr_err("could not send unicast, no socket\n");
		return;
	}

	/* prepare the message for unicast */
	skb = alloc_skb(NLMSG_SPACE(MAX_PAYLOAD), GFP_KERNEL);
	if (!skb) {
		pr_err("failed to allocate socket buffer\n");
		return;
	}

	nlh = (struct nlmsghdr *)skb->data;
	nlh->nlmsg_len = NLMSG_SPACE(MAX_PAYLOAD);
	nlh->nlmsg_pid = 0;  /* from kernel */
	nlh->nlmsg_flags = 0;

	if (modem_m6718_spi_is_boot_done()) {
		pr_debug("sending netlink unicast message %d\n",
			NETLINK_MODEM_STATUS_ONLINE);
		*(int *)NLMSG_DATA(nlh) = NETLINK_MODEM_STATUS_ONLINE;
	} else {
		pr_debug("sending netlink unicast message %d\n",
			NETLINK_MODEM_STATUS_OFFLINE);
		*(int *)NLMSG_DATA(nlh) = NETLINK_MODEM_STATUS_OFFLINE;
	}

	skb_put(skb, MAX_PAYLOAD);
	/* sender is in group 1<<0 */
	NETLINK_CB(skb).pid = 0;  /* from kernel */
	NETLINK_CB(skb).dst_group = 0;

	/* unicast the message to the querying process */
	netlink_unicast(netlink_sk, skb, dst_pid, MSG_DONTWAIT);
}

开发者ID:1N4148，项目名称:android_kernel_samsung_golden，代码行数:40，代码来源:netlink.c

示例15: quota2_log

static void quota2_log(unsigned int hooknum,
		       const struct sk_buff *skb,
		       const struct net_device *in,
		       const struct net_device *out,
		       const char *prefix)
{
	ulog_packet_msg_t *pm;
	struct sk_buff *log_skb;
	size_t size;
	struct nlmsghdr *nlh;

	if (!qlog_nl_event)
		return;

	size = NLMSG_SPACE(sizeof(*pm));
	size = max(size, (size_t)NLMSG_GOODSIZE);
	log_skb = alloc_skb(size, GFP_ATOMIC);
	if (!log_skb) {
		pr_err("xt_quota2: cannot alloc skb for logging\n");
		return;
	}

	nlh = nlmsg_put(log_skb, /*pid*/0, /*seq*/0, qlog_nl_event,
			sizeof(*pm), 0);
	if (!nlh) {
		pr_err("xt_quota2: nlmsg_put failed\n");
		kfree_skb(log_skb);
		return;
	}
	pm = nlmsg_data(nlh);
	if (skb->tstamp.tv64 == 0)
		__net_timestamp((struct sk_buff *)skb);
	pm->data_len = 0;
	pm->hook = hooknum;
	if (prefix != NULL)
		strlcpy(pm->prefix, prefix, sizeof(pm->prefix));
	else
		*(pm->prefix) = '\0';
	if (in)
		strlcpy(pm->indev_name, in->name, sizeof(pm->indev_name));
	else
		pm->indev_name[0] = '\0';

	if (out)
		strlcpy(pm->outdev_name, out->name, sizeof(pm->outdev_name));
	else
		pm->outdev_name[0] = '\0';

	NETLINK_CB(log_skb).dst_group = 1;
	pr_debug("throwing 1 packets to netlink group 1\n");
	netlink_broadcast(nflognl, log_skb, 0, 1, GFP_ATOMIC);
}

开发者ID:AICP，项目名称:kernel_moto_shamu，代码行数:52，代码来源:xt_quota2.c

示例16: _do_command

int _do_command(int type, struct user_stat_msg * request)
{
	int   sock;
	struct sockaddr_nl remote;
	struct sockaddr_nl local;
	struct nlmsghdr * nlhdr;
	struct iovec iov;
	struct msghdr msg;
    
    sock = socket(PF_NETLINK, SOCK_RAW, NETLINK_ACCOUNT);
    if(sock < 0){
        return -1;
    }
    memset(&local, 0, sizeof(struct sockaddr_nl));
    local.nl_family = AF_NETLINK;
    local.nl_pid = getpid();
    local.nl_groups = 0;
    if(bind(sock, (struct sockaddr*)&local, sizeof(struct sockaddr_nl)) != 0){
        close(sock);
        return -1;
    }

    memset(&remote, 0, sizeof(struct sockaddr_nl));
    remote.nl_family = AF_NETLINK;
    remote.nl_pid    = 0;
    remote.nl_groups = 0;

    memset(&msg, 0, sizeof(struct msghdr));
    nlhdr = (struct nlmsghdr *)malloc(NLMSG_SPACE(sizeof(struct user_stat_entry) * 1024));
    memcpy(NLMSG_DATA(nlhdr), (char *)request, sizeof(struct user_stat_msg));

    nlhdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct user_stat_msg));
    nlhdr->nlmsg_pid = getpid();  /* self pid */
    nlhdr->nlmsg_flags = NLM_F_REQUEST;
    nlhdr->nlmsg_type = type;

    iov.iov_base = (void *)nlhdr;
    iov.iov_len = nlhdr->nlmsg_len;
    
    msg.msg_name = (void *)&remote;
    msg.msg_namelen = sizeof(remote);
    msg.msg_iov = &iov;
    msg.msg_iovlen = 1;

    int ret = sendmsg(sock, &msg, 0);
    if (ret == -1) {
         return -1;
    }

    free(nlhdr);   
	return sock;
}

开发者ID:wfqGithubHome，项目名称:dailycode，代码行数:52，代码来源:flowstat.c

示例17: wlan_logging_srv_nl_ready_indication

/*
 * Broadcast Logging service ready indication to any Logging application
 * Each netlink message will have a message of type tAniMsgHdr inside.
 */
void wlan_logging_srv_nl_ready_indication(void)
{
	struct sk_buff *skb = NULL;
	struct nlmsghdr *nlh;
	tAniNlHdr *wnl = NULL;
	int payload_len;
	int    err;
	static int rate_limit;

	payload_len = sizeof(tAniHdr) + sizeof(wlan_logging_ready) +
		sizeof(wnl->radio);
	skb = dev_alloc_skb(NLMSG_SPACE(payload_len));
	if (NULL == skb) {
		if (!rate_limit) {
			LOGGING_TRACE(VOS_TRACE_LEVEL_ERROR,
					"NLINK: skb alloc fail %s", __func__);
		}
		rate_limit = 1;
		return;
	}
	rate_limit = 0;

	nlh = nlmsg_put(skb, 0, 0, ANI_NL_MSG_LOG, payload_len,
			NLM_F_REQUEST);
	if (NULL == nlh) {
		LOGGING_TRACE(VOS_TRACE_LEVEL_ERROR,
				"%s: nlmsg_put() failed for msg size[%d]",
				__func__, payload_len);
		kfree_skb(skb);
		return;
	}

	wnl = (tAniNlHdr *) nlh;
	wnl->radio = 0;
	wnl->wmsg.type = ANI_NL_MSG_READY_IND_TYPE;
	wnl->wmsg.length = sizeof(wlan_logging_ready);
	memcpy((char*)&wnl->wmsg + sizeof(tAniHdr),
			wlan_logging_ready,
			sizeof(wlan_logging_ready));

	/* sender is in group 1<<0 */
	NETLINK_CB(skb).dst_group = WLAN_NLINK_MCAST_GRP_ID;

	/*multicast the message to all listening processes*/
	err = nl_srv_bcast(skb);
	if (err) {
		LOGGING_TRACE(VOS_TRACE_LEVEL_INFO_LOW,
			"NLINK: Ready Indication Send Fail %s, err %d",
			__func__, err);
	}
	return;
}

开发者ID:Defector，项目名称:Defkernel_F320，代码行数:56，代码来源:wlan_logging_sock_svc.c

示例18: nfnetlink_rcv_msg

/* Process one complete nfnetlink message. */
static int nfnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
	const struct nfnl_callback *nc;
	const struct nfnetlink_subsystem *ss;
	int type, err;

	if (security_netlink_recv(skb, CAP_NET_ADMIN))
		return -EPERM;

	if (provenance_netlink_recv(skb, CAP_NET_ADMIN))
		return -EPERM;

	/* All the messages must at least contain nfgenmsg */
	if (nlh->nlmsg_len < NLMSG_LENGTH(sizeof(struct nfgenmsg)))
		return 0;

	type = nlh->nlmsg_type;
replay:
	ss = nfnetlink_get_subsys(type);
	if (!ss) {
#ifdef CONFIG_MODULES
		nfnl_unlock();
		request_module("nfnetlink-subsys-%d", NFNL_SUBSYS_ID(type));
		nfnl_lock();
		ss = nfnetlink_get_subsys(type);
		if (!ss)
#endif
			return -EINVAL;
	}

	nc = nfnetlink_find_client(type, ss);
	if (!nc)
		return -EINVAL;

	{
		int min_len = NLMSG_SPACE(sizeof(struct nfgenmsg));
		u_int8_t cb_id = NFNL_MSG_TYPE(nlh->nlmsg_type);
		struct nlattr *cda[ss->cb[cb_id].attr_count + 1];
		struct nlattr *attr = (void *)nlh + min_len;
		int attrlen = nlh->nlmsg_len - min_len;

		err = nla_parse(cda, ss->cb[cb_id].attr_count,
				attr, attrlen, ss->cb[cb_id].policy);
		if (err < 0)
			return err;

		err = nc->call(nfnl, skb, nlh, (const struct nlattr **)cda);
		if (err == -EAGAIN)
			goto replay;
		return err;
	}
}

开发者ID:daveti，项目名称:prov-kernel，代码行数:53，代码来源:nfnetlink.c

示例19: main

int
main(void)
{
	skip_if_unavailable("/proc/self/fd/");

	const int fd = create_nl_socket(NETLINK_ROUTE);
	const unsigned int hdrlen = sizeof(struct ndmsg);
	void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen),
				   NLA_HDRLEN + sizeof(struct nda_cacheinfo));

	static char pattern[4096];
	fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);

	const unsigned int nla_type = 0xffff & NLA_TYPE_MASK;
	char nla_type_str[256];
	sprintf(nla_type_str, "%#x /* NDA_??? */", nla_type);
	TEST_NLATTR_(fd, nlh0, hdrlen,
		     init_ndmsg, print_ndmsg,
		     nla_type, nla_type_str,
		     4, pattern, 4,
		     print_quoted_hex(pattern, 4));

	TEST_NLATTR(fd, nlh0, hdrlen,
		    init_ndmsg, print_ndmsg,
		    NDA_DST, 4, pattern, 4,
		    print_quoted_hex(pattern, 4));

	static const struct nda_cacheinfo ci = {
		.ndm_confirmed = 0xabcdedad,
		.ndm_used = 0xbcdaedad,
		.ndm_updated = 0xcdbadeda,
		.ndm_refcnt = 0xdeadbeda
	};

	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
			   init_ndmsg, print_ndmsg,
			   NDA_CACHEINFO, pattern, ci,
			   PRINT_FIELD_U("{", ci, ndm_confirmed);
			   PRINT_FIELD_U(", ", ci, ndm_used);
			   PRINT_FIELD_U(", ", ci, ndm_updated);
			   PRINT_FIELD_U(", ", ci, ndm_refcnt);
			   printf("}"));

	const uint16_t port = 0xabcd;
	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
			   init_ndmsg, print_ndmsg,
			   NDA_PORT, pattern, port,
			   printf("htons(%u)", ntohs(port)));

	puts("+++ exited with 0 +++");
	return 0;
}

开发者ID:android，项目名称:platform_external_strace，代码行数:52，代码来源:nlattr_ndmsg.c

示例20: send_event

void send_event(int sock, char *buffer)
{
	struct sockaddr_nl nladdr;
	struct msghdr msg;
	struct iovec iov;
	struct nlmsghdr *nlh = NULL;
	int buflen = NLMSG_SPACE(strlen(buffer) + 1);

	memset(&msg,    0, sizeof(msg));
	memset(&nlh,    0, sizeof(nlh));
	memset(&nladdr, 0, sizeof(nladdr));
	memset(&nladdr, 0, sizeof(nladdr));

	nladdr.nl_family = AF_NETLINK;
	nladdr.nl_pid    = 0;	/* 0 = send to Linux kernel */
	nladdr.nl_groups = 0;	/* 0 = unicast */

	nlh = (struct nlmsghdr *)malloc(buflen);

	nlh->nlmsg_len = NLMSG_SPACE(buflen);
	nlh->nlmsg_pid = getpid();
	nlh->nlmsg_flags = 0;

	strcpy(NLMSG_DATA(nlh), buffer);

	iov.iov_base = (void *)nlh;
	iov.iov_len  = nlh->nlmsg_len;
	msg.msg_name = (void *) &(nladdr);
	msg.msg_namelen = sizeof(nladdr);
	msg.msg_iov = &iov;
	msg.msg_iovlen = 1;

	if (DEBUG)
		printf("sending...\n");

	sendmsg(sock, &msg, 0);

	return;
}

开发者ID:LucaBongiorni，项目名称:LAF，代码行数:39，代码来源:laffun.c

注：本文中的NLMSG_SPACE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++ NLMSG_SPACE函数代码示例

示例1: main

示例2: sample_input

示例3: netlink_test_compute

示例4: nl_send_unicast_message

示例5: print_ifinfomsg

示例6: main

示例7: nfnl_check_attributes

示例8: netlink_send

示例9: __event_send

示例10: main

示例11: alloc_skb

示例12: initialize

示例13: kget_host_stats

示例14: send_unicast

示例15: quota2_log

示例16: _do_command

示例17: wlan_logging_srv_nl_ready_indication

示例18: nfnetlink_rcv_msg

示例19: main

示例20: send_event

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