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C++ sk_dst_reset函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中sk_dst_reset函数的典型用法代码示例。如果您正苦于以下问题：C++ sk_dst_reset函数的具体用法？C++ sk_dst_reset怎么用？C++ sk_dst_reset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sk_dst_reset函数的12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: inet6_destroy_sock

int inet6_destroy_sock(struct sock *sk)
{
	struct sk_buff *skb;
	struct ipv6_txoptions *opt;

	/*
	 *	Release destination entry
	 */

	sk_dst_reset(sk);

	/* Release rx options */

	if ((skb = xchg(&sk->net_pinfo.af_inet6.pktoptions, NULL)) != NULL)
		kfree_skb(skb);

	/* Free flowlabels */
	fl6_free_socklist(sk);

	/* Free tx options */

	if ((opt = xchg(&sk->net_pinfo.af_inet6.opt, NULL)) != NULL)
		sock_kfree_s(sk, opt, opt->tot_len);

	return 0;
}
开发者ID:dmgerman，项目名称:original，代码行数:26，代码来源:af_inet6.c


示例2: rxe_qp_do_cleanup

/* called when the last reference to the qp is dropped */
static void rxe_qp_do_cleanup(struct work_struct *work)
{
	struct rxe_qp *qp = container_of(work, typeof(*qp), cleanup_work.work);

	rxe_drop_all_mcast_groups(qp);

	if (qp->sq.queue)
		rxe_queue_cleanup(qp->sq.queue);

	if (qp->srq)
		rxe_drop_ref(qp->srq);

	if (qp->rq.queue)
		rxe_queue_cleanup(qp->rq.queue);

	if (qp->scq)
		rxe_drop_ref(qp->scq);
	if (qp->rcq)
		rxe_drop_ref(qp->rcq);
	if (qp->pd)
		rxe_drop_ref(qp->pd);

	if (qp->resp.mr) {
		rxe_drop_ref(qp->resp.mr);
		qp->resp.mr = NULL;
	}

	if (qp_type(qp) == IB_QPT_RC)
		sk_dst_reset(qp->sk->sk);

	free_rd_atomic_resources(qp);

	kernel_sock_shutdown(qp->sk, SHUT_RDWR);
	sock_release(qp->sk);
}
开发者ID:ReneNyffenegger，项目名称:linux，代码行数:36，代码来源:rxe_qp.c


示例3: ip4_datagram_connect

int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
{
	struct inet_sock *inet = inet_sk(sk);
	struct sockaddr_in *usin = (struct sockaddr_in *) uaddr;
	struct rtable *rt;
	__be32 saddr;
	int oif;
	int err;


	if (addr_len < sizeof(*usin))
		return -EINVAL;

	if (usin->sin_family != AF_INET)
		return -EAFNOSUPPORT;

	sk_dst_reset(sk);

	oif = sk->sk_bound_dev_if;
	saddr = inet->inet_saddr;
	if (ipv4_is_multicast(usin->sin_addr.s_addr)) {
		if (!oif)
			oif = inet->mc_index;
		if (!saddr)
			saddr = inet->mc_addr;
	}
	err = ip_route_connect(&rt, usin->sin_addr.s_addr, saddr,
			       RT_CONN_FLAGS(sk), oif,
			       sk->sk_protocol,
			       inet->inet_sport, usin->sin_port, sk, 1);
	if (err) {
		if (err == -ENETUNREACH)
			IP_INC_STATS_BH(sock_net(sk), IPSTATS_MIB_OUTNOROUTES);
		return err;
	}

	if ((rt->rt_flags & RTCF_BROADCAST) && !sock_flag(sk, SOCK_BROADCAST)) {
		ip_rt_put(rt);
		return -EACCES;
	}
	if (!inet->inet_saddr)
		inet->inet_saddr = rt->rt_src;	/* Update source address */
	if (!inet->inet_rcv_saddr) {
		inet->inet_rcv_saddr = rt->rt_src;
		if (sk->sk_prot->rehash)
			sk->sk_prot->rehash(sk);
	}
	inet->inet_daddr = rt->rt_dst;
	inet->inet_dport = usin->sin_port;
	sk->sk_state = TCP_ESTABLISHED;
	inet->inet_id = jiffies;

	sk_dst_set(sk, &rt->dst);
	return(0);
}
开发者ID:3sOx，项目名称:asuswrt-merlin，代码行数:55，代码来源:datagram.c


示例4: sk_dst_get

struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie)
{
	struct dst_entry *dst = sk_dst_get(sk);

	if (dst && dst->obsolete && dst->ops->check(dst, cookie) == NULL) {
		sk_dst_reset(sk);
		dst_release(dst);
		return NULL;
	}

	return dst;
}
开发者ID:BackupTheBerlios，项目名称:arp2-svn，代码行数:12，代码来源:sock.c


示例5: inet_sk

struct ipv6_txoptions *ipv6_update_options(struct sock *sk,
					   struct ipv6_txoptions *opt)
{
	if (inet_sk(sk)->is_icsk) {
		if (opt &&
		    !((1 << sk->sk_state) & (TCPF_LISTEN | TCPF_CLOSE)) &&
		    inet_sk(sk)->inet_daddr != LOOPBACK4_IPV6) {
			struct inet_connection_sock *icsk = inet_csk(sk);
			icsk->icsk_ext_hdr_len = opt->opt_flen + opt->opt_nflen;
			icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie);
		}
	}
	opt = xchg((__force struct ipv6_txoptions **)&inet6_sk(sk)->opt,
		   opt);
	sk_dst_reset(sk);

	return opt;
}
开发者ID:AK101111，项目名称:linux，代码行数:18，代码来源:ipv6_sockglue.c


示例6: raw_bind

/* This gets rid of all the nasties in af_inet. -DaveM */
static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
{
	struct sockaddr_in *addr = (struct sockaddr_in *) uaddr;
	int ret = -EINVAL;
	int chk_addr_ret;

	if (sk->state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_in))
		goto out;
	chk_addr_ret = inet_addr_type(addr->sin_addr.s_addr);
	ret = -EADDRNOTAVAIL;
	if (addr->sin_addr.s_addr && chk_addr_ret != RTN_LOCAL &&
	    chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST)
		goto out;
	sk->rcv_saddr = sk->saddr = addr->sin_addr.s_addr;
	if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST)
		sk->saddr = 0;  /* Use device */
	sk_dst_reset(sk);
	ret = 0;
out:	return ret;
}
开发者ID:ProjectZeroSlackr，项目名称:linux-2.4.32-ipod，代码行数:21，代码来源:raw.c


示例7: ipv6_setsockopt


//.........这里部分代码省略.........
		if (optlen > 64*1024)
			break;

		opt = sock_kmalloc(sk, sizeof(*opt) + optlen, GFP_KERNEL);
		retv = -ENOBUFS;
		if (opt == NULL)
			break;

		memset(opt, 0, sizeof(*opt));
		opt->tot_len = sizeof(*opt) + optlen;
		retv = -EFAULT;
		if (copy_from_user(opt+1, optval, optlen))
			goto done;

		msg.msg_controllen = optlen;
		msg.msg_control = (void*)(opt+1);

		retv = datagram_send_ctl(&msg, &fl, opt, &junk);
		if (retv)
			goto done;
update:
		retv = 0;
		if (sk->sk_type == SOCK_STREAM) {
			if (opt) {
				struct tcp_sock *tp = tcp_sk(sk);
				if (!((1 << sk->sk_state) &
				      (TCPF_LISTEN | TCPF_CLOSE))
				    && inet_sk(sk)->daddr != LOOPBACK4_IPV6) {
					tp->ext_header_len = opt->opt_flen + opt->opt_nflen;
					tcp_sync_mss(sk, tp->pmtu_cookie);
				}
			}
			opt = xchg(&np->opt, opt);
			sk_dst_reset(sk);
		} else {
			write_lock(&sk->sk_dst_lock);
			opt = xchg(&np->opt, opt);
			write_unlock(&sk->sk_dst_lock);
			sk_dst_reset(sk);
		}

done:
		if (opt)
			sock_kfree_s(sk, opt, opt->tot_len);
		break;
	}
	case IPV6_UNICAST_HOPS:
		if (val > 255 || val < -1)
			goto e_inval;
		np->hop_limit = val;
		retv = 0;
		break;

	case IPV6_MULTICAST_HOPS:
		if (sk->sk_type == SOCK_STREAM)
			goto e_inval;
		if (val > 255 || val < -1)
			goto e_inval;
		np->mcast_hops = val;
		retv = 0;
		break;

	case IPV6_MULTICAST_LOOP:
		np->mc_loop = valbool;
		retv = 0;
		break;
开发者ID:OpenHMR，项目名称:Open-HMR600，代码行数:67，代码来源:ipv6_sockglue.c


示例8: sock_setsockopt


//.........这里部分代码省略.........
				sock_reset_flag(sk, SOCK_RCVTSTAMP);
			break;

		case SO_RCVLOWAT:
			if (val < 0)
				val = INT_MAX;
			sk->sk_rcvlowat = val ? : 1;
			break;

		case SO_RCVTIMEO:
			ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen);
			break;

		case SO_SNDTIMEO:
			ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen);
			break;

#ifdef CONFIG_NETDEVICES
		case SO_BINDTODEVICE:
		{
			char devname[IFNAMSIZ]; 

			/* Sorry... */ 
			if (!capable(CAP_NET_RAW)) {
				ret = -EPERM;
				break;
			}

			/* Bind this socket to a particular device like "eth0",
			 * as specified in the passed interface name. If the
			 * name is "" or the option length is zero the socket 
			 * is not bound. 
			 */ 

			if (!valbool) {
				sk->sk_bound_dev_if = 0;
			} else {
				if (optlen > IFNAMSIZ - 1)
					optlen = IFNAMSIZ - 1;
				memset(devname, 0, sizeof(devname));
				if (copy_from_user(devname, optval, optlen)) {
					ret = -EFAULT;
					break;
				}

				/* Remove any cached route for this socket. */
				sk_dst_reset(sk);

				if (devname[0] == '\0') {
					sk->sk_bound_dev_if = 0;
				} else {
					struct net_device *dev = dev_get_by_name(devname);
					if (!dev) {
						ret = -ENODEV;
						break;
					}
					sk->sk_bound_dev_if = dev->ifindex;
					dev_put(dev);
				}
			}
			break;
		}
#endif


		case SO_ATTACH_FILTER:
			ret = -EINVAL;
			if (optlen == sizeof(struct sock_fprog)) {
				struct sock_fprog fprog;

				ret = -EFAULT;
				if (copy_from_user(&fprog, optval, sizeof(fprog)))
					break;

				ret = sk_attach_filter(&fprog, sk);
			}
			break;

		case SO_DETACH_FILTER:
			spin_lock_bh(&sk->sk_lock.slock);
			filter = sk->sk_filter;
                        if (filter) {
				sk->sk_filter = NULL;
				spin_unlock_bh(&sk->sk_lock.slock);
				sk_filter_release(sk, filter);
				break;
			}
			spin_unlock_bh(&sk->sk_lock.slock);
			ret = -ENONET;
			break;

		/* We implement the SO_SNDLOWAT etc to
		   not be settable (1003.1g 5.3) */
		default:
		  	ret = -ENOPROTOOPT;
			break;
  	}
	release_sock(sk);
	return ret;
}
开发者ID:BackupTheBerlios，项目名称:arp2-svn，代码行数:101，代码来源:sock.c


示例9: do_ip_setsockopt


//.........这里部分代码省略.........
			inet->cmsg_flags |= IP_CMSG_ORIGDSTADDR;
		else
			inet->cmsg_flags &= ~IP_CMSG_ORIGDSTADDR;
		break;
	case IP_CHECKSUM:
		if (val) {
			if (!(inet->cmsg_flags & IP_CMSG_CHECKSUM)) {
				inet_inc_convert_csum(sk);
				inet->cmsg_flags |= IP_CMSG_CHECKSUM;
			}
		} else {
			if (inet->cmsg_flags & IP_CMSG_CHECKSUM) {
				inet_dec_convert_csum(sk);
				inet->cmsg_flags &= ~IP_CMSG_CHECKSUM;
			}
		}
		break;
	case IP_RECVFRAGSIZE:
		if (sk->sk_type != SOCK_RAW && sk->sk_type != SOCK_DGRAM)
			goto e_inval;
		if (val)
			inet->cmsg_flags |= IP_CMSG_RECVFRAGSIZE;
		else
			inet->cmsg_flags &= ~IP_CMSG_RECVFRAGSIZE;
		break;
	case IP_TOS:	/* This sets both TOS and Precedence */
		if (sk->sk_type == SOCK_STREAM) {
			val &= ~INET_ECN_MASK;
			val |= inet->tos & INET_ECN_MASK;
		}
		if (inet->tos != val) {
			inet->tos = val;
			sk->sk_priority = rt_tos2priority(val);
			sk_dst_reset(sk);
		}
		break;
	case IP_TTL:
		if (optlen < 1)
			goto e_inval;
		if (val != -1 && (val < 1 || val > 255))
			goto e_inval;
		inet->uc_ttl = val;
		break;
	case IP_HDRINCL:
		if (sk->sk_type != SOCK_RAW) {
			err = -ENOPROTOOPT;
			break;
		}
		inet->hdrincl = val ? 1 : 0;
		break;
	case IP_NODEFRAG:
		if (sk->sk_type != SOCK_RAW) {
			err = -ENOPROTOOPT;
			break;
		}
		inet->nodefrag = val ? 1 : 0;
		break;
	case IP_BIND_ADDRESS_NO_PORT:
		inet->bind_address_no_port = val ? 1 : 0;
		break;
	case IP_MTU_DISCOVER:
		if (val < IP_PMTUDISC_DONT || val > IP_PMTUDISC_OMIT)
			goto e_inval;
		inet->pmtudisc = val;
		break;
	case IP_RECVERR:
开发者ID:AshishNamdev，项目名称:linux，代码行数:67，代码来源:ip_sockglue.c


示例10: sock_setsockopt


//.........这里部分代码省略.........
			sk->rcvtstamp = valbool;
			break;

		case SO_RCVLOWAT:
			if (val < 0)
				val = INT_MAX;
			sk->rcvlowat = val ? : 1;
			break;

		case SO_RCVTIMEO:
			ret = sock_set_timeout(&sk->rcvtimeo, optval, optlen);
			break;

		case SO_SNDTIMEO:
			ret = sock_set_timeout(&sk->sndtimeo, optval, optlen);
			break;

#ifdef CONFIG_NETDEVICES
		case SO_BINDTODEVICE:
		{
			char devname[IFNAMSIZ]; 

			/* Sorry... */ 
			if (!capable(CAP_NET_RAW)) {
				ret = -EPERM;
				break;
			}

			/* Bind this socket to a particular device like "eth0",
			 * as specified in the passed interface name. If the
			 * name is "" or the option length is zero the socket 
			 * is not bound. 
			 */ 

			if (!valbool) {
				sk->bound_dev_if = 0;
			} else {
				if (optlen > IFNAMSIZ) 
					optlen = IFNAMSIZ; 
				if (copy_from_user(devname, optval, optlen)) {
					ret = -EFAULT;
					break;
				}

				/* Remove any cached route for this socket. */
				sk_dst_reset(sk);

				if (devname[0] == '\0') {
					sk->bound_dev_if = 0;
				} else {
					struct net_device *dev = dev_get_by_name(devname);
					if (!dev) {
						ret = -ENODEV;
						break;
					}
					sk->bound_dev_if = dev->ifindex;
					dev_put(dev);
				}
			}
			break;
		}
#endif


#ifdef CONFIG_FILTER
		case SO_ATTACH_FILTER:
			ret = -EINVAL;
			if (optlen == sizeof(struct sock_fprog)) {
				struct sock_fprog fprog;

				ret = -EFAULT;
				if (copy_from_user(&fprog, optval, sizeof(fprog)))
					break;

				ret = sk_attach_filter(&fprog, sk);
			}
			break;

		case SO_DETACH_FILTER:
			spin_lock_bh(&sk->lock.slock);
			filter = sk->filter;
                        if (filter) {
				sk->filter = NULL;
				spin_unlock_bh(&sk->lock.slock);
				sk_filter_release(sk, filter);
				break;
			}
			spin_unlock_bh(&sk->lock.slock);
			ret = -ENONET;
			break;
#endif
		/* We implement the SO_SNDLOWAT etc to
		   not be settable (1003.1g 5.3) */
		default:
		  	ret = -ENOPROTOOPT;
			break;
  	}
	release_sock(sk);
	return ret;
}
开发者ID:nhanh0，项目名称:hah，代码行数:101，代码来源:sock.c


示例11: ip4_datagram_connect

int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
{
	struct inet_sock *inet = inet_sk(sk);
	struct sockaddr_in *usin = (struct sockaddr_in *) uaddr;
	struct flowi4 *fl4;
	struct rtable *rt;
	__be32 saddr;
	int oif;
	int err;


	if (addr_len < sizeof(*usin))
		return -EINVAL;

	if (usin->sin_family != AF_INET)
		return -EAFNOSUPPORT;

	sk_dst_reset(sk);

	lock_sock(sk);

	oif = sk->sk_bound_dev_if;
	saddr = inet->inet_saddr;
	if (ipv4_is_multicast(usin->sin_addr.s_addr)) {
		if (!oif)
			oif = inet->mc_index;
		if (!saddr)
			saddr = inet->mc_addr;
	}
	fl4 = &inet->cork.fl.u.ip4;
	rt = ip_route_connect(fl4, usin->sin_addr.s_addr, saddr,
			      RT_CONN_FLAGS(sk), oif,
			      sk->sk_protocol,
			      inet->inet_sport, usin->sin_port, sk, true);
	if (IS_ERR(rt)) {
		err = PTR_ERR(rt);
		if (err == -ENETUNREACH)
			IP_INC_STATS_BH(sock_net(sk), IPSTATS_MIB_OUTNOROUTES);
		goto out;
	}

	if ((rt->rt_flags & RTCF_BROADCAST) && !sock_flag(sk, SOCK_BROADCAST)) {
		ip_rt_put(rt);
		err = -EACCES;
		goto out;
	}
	if (!inet->inet_saddr)
		inet->inet_saddr = fl4->saddr;	
	if (!inet->inet_rcv_saddr) {
		inet->inet_rcv_saddr = fl4->saddr;
		if (sk->sk_prot->rehash)
			sk->sk_prot->rehash(sk);
	}
	inet->inet_daddr = fl4->daddr;
	inet->inet_dport = usin->sin_port;
	sk->sk_state = TCP_ESTABLISHED;
	inet->inet_id = jiffies;

	sk_dst_set(sk, &rt->dst);
	err = 0;
out:
	release_sock(sk);
	return err;
}
开发者ID:Albinoman887，项目名称:pyramid-3.4.10，代码行数:64，代码来源:datagram.c


示例12: ax8netfilter_do_ip_setsockopt


//.........这里部分代码省略.........
		break;
	case IP_RECVOPTS:
		if (val)
			inet->cmsg_flags |=  IP_CMSG_RECVOPTS;
		else
			inet->cmsg_flags &= ~IP_CMSG_RECVOPTS;
		break;
	case IP_RETOPTS:
		if (val)
			inet->cmsg_flags |= IP_CMSG_RETOPTS;
		else
			inet->cmsg_flags &= ~IP_CMSG_RETOPTS;
		break;
	case IP_PASSSEC:
		if (val)
			inet->cmsg_flags |= IP_CMSG_PASSSEC;
		else
			inet->cmsg_flags &= ~IP_CMSG_PASSSEC;
		break;
	case IP_RECVORIGDSTADDR:
		if (val)
			inet->cmsg_flags |= IP_CMSG_ORIGDSTADDR;
		else
			inet->cmsg_flags &= ~IP_CMSG_ORIGDSTADDR;
		break;
	case IP_TOS:	/* This sets both TOS and Precedence */
		if (sk->sk_type == SOCK_STREAM) {
			val &= ~3;
			val |= inet->tos & 3;
		}
		if (inet->tos != val) {
			inet->tos = val;
			sk->sk_priority = ax8netfilter_rt_tos2priority(val);
			sk_dst_reset(sk);
		}
		break;
	case IP_TTL:
		if (optlen<1)
			goto e_inval;
		if (val != -1 && (val < 1 || val>255))
			goto e_inval;
		inet->uc_ttl = val;
		break;
	case IP_HDRINCL:
		if (sk->sk_type != SOCK_RAW) {
			err = -ENOPROTOOPT;
			break;
		}
		inet->hdrincl = val ? 1 : 0;
		break;
	case IP_MTU_DISCOVER:
		if (val<0 || val>3)
			goto e_inval;
		inet->pmtudisc = val;
		break;
	case IP_RECVERR:
		inet->recverr = !!val;
		if (!val)
			skb_queue_purge(&sk->sk_error_queue);
		break;
	case IP_MULTICAST_TTL:
		if (sk->sk_type == SOCK_STREAM)
			goto e_inval;
		if (optlen<1)
			goto e_inval;
		if (val == -1)
开发者ID:AnDyXX，项目名称:Xperia-devices，代码行数:67，代码来源:ipv4_ip_sockglue.c



注：本文中的sk_dst_reset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++ sk_free函数代码示例发布时间：2022-05-30
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