本文整理汇总了C++中IP_VS_DBG函数的典型用法代码示例。如果您正苦于以下问题：C++ IP_VS_DBG函数的具体用法？C++ IP_VS_DBG怎么用？C++ IP_VS_DBG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IP_VS_DBG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: ip_vs_schedule
/*
* IPVS main scheduling function
* It selects a server according to the virtual service, and
* creates a connection entry.
* Protocols supported: TCP, UDP
*/
struct ip_vs_conn *
ip_vs_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
{
struct ip_vs_conn *cp = NULL;
struct iphdr *iph = ip_hdr(skb);
struct ip_vs_dest *dest;
__be16 _ports[2], *pptr;
pptr = skb_header_pointer(skb, iph->ihl*4,
sizeof(_ports), _ports);
if (pptr == NULL)
return NULL;
/*
* Persistent service
*/
if (svc->flags & IP_VS_SVC_F_PERSISTENT)
return ip_vs_sched_persist(svc, skb, pptr);
/*
* Non-persistent service
*/
if (!svc->fwmark && pptr[1] != svc->port) {
if (!svc->port)
IP_VS_ERR("Schedule: port zero only supported "
"in persistent services, "
"check your ipvs configuration\n");
return NULL;
}
dest = svc->scheduler->schedule(svc, skb);
if (dest == NULL) {
IP_VS_DBG(1, "Schedule: no dest found.\n");
return NULL;
}
/*
* Create a connection entry.
*/
cp = ip_vs_conn_new(iph->protocol,
iph->saddr, pptr[0],
iph->daddr, pptr[1],
dest->addr, dest->port?dest->port:pptr[1],
0,
dest);
if (cp == NULL)
return NULL;
IP_VS_DBG(6, "Schedule fwd:%c c:%u.%u.%u.%u:%u v:%u.%u.%u.%u:%u "
"d:%u.%u.%u.%u:%u conn->flags:%X conn->refcnt:%d\n",
ip_vs_fwd_tag(cp),
NIPQUAD(cp->caddr), ntohs(cp->cport),
NIPQUAD(cp->vaddr), ntohs(cp->vport),
NIPQUAD(cp->daddr), ntohs(cp->dport),
cp->flags, atomic_read(&cp->refcnt));
ip_vs_conn_stats(cp, svc);
return cp;
}示例2: ip_vs_lblcr_schedule
/*
* Locality-Based (weighted) Least-Connection scheduling
*/
static struct ip_vs_dest *
ip_vs_lblcr_schedule(struct ip_vs_service *svc, struct iphdr *iph)
{
struct ip_vs_dest *dest;
struct ip_vs_lblcr_table *tbl;
struct ip_vs_lblcr_entry *en;
IP_VS_DBG(6, "ip_vs_lblcr_schedule(): Scheduling...\n");
tbl = (struct ip_vs_lblcr_table *)svc->sched_data;
en = ip_vs_lblcr_get(tbl, iph->daddr);
if (en == NULL) {
dest = __ip_vs_wlc_schedule(svc, iph);
if (dest == NULL) {
IP_VS_DBG(1, "no destination available\n");
return NULL;
}
en = ip_vs_lblcr_new(iph->daddr);
if (en == NULL) {
return NULL;
}
ip_vs_dest_set_insert(&en->set, dest);
ip_vs_lblcr_hash(tbl, en);
} else {
dest = ip_vs_dest_set_min(&en->set);
if (!dest || is_overloaded(dest, svc)) {
dest = __ip_vs_wlc_schedule(svc, iph);
if (dest == NULL) {
IP_VS_DBG(1, "no destination available\n");
return NULL;
}
ip_vs_dest_set_insert(&en->set, dest);
}
if (atomic_read(&en->set.size) > 1 &&
jiffies-en->set.lastmod > sysctl_ip_vs_lblcr_expiration) {
struct ip_vs_dest *m;
m = ip_vs_dest_set_max(&en->set);
if (m)
ip_vs_dest_set_erase(&en->set, m);
}
}
en->lastuse = jiffies;
IP_VS_DBG(6, "LBLCR: destination IP address %u.%u.%u.%u "
"--> server %u.%u.%u.%u:%d\n",
NIPQUAD(en->addr),
NIPQUAD(dest->addr),
ntohs(dest->port));
return dest;
}示例3: ip_vs_sh_schedule
/*
* Source Hashing scheduling
*/
static struct ip_vs_dest *
ip_vs_sh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
{
struct ip_vs_dest *dest;
struct ip_vs_sh_state *s;
struct ip_vs_iphdr iph;
ip_vs_fill_iph_addr_only(svc->af, skb, &iph);
IP_VS_DBG(6, "ip_vs_sh_schedule(): Scheduling...\n");
s = (struct ip_vs_sh_state *) svc->sched_data;
dest = ip_vs_sh_get(svc->af, s, &iph.saddr);
if (!dest
|| !(dest->flags & IP_VS_DEST_F_AVAILABLE)
|| atomic_read(&dest->weight) <= 0
|| is_overloaded(dest)) {
ip_vs_scheduler_err(svc, "no destination available");
return NULL;
}
IP_VS_DBG_BUF(6, "SH: source IP address %s --> server %s:%d\n",
IP_VS_DBG_ADDR(svc->af, &iph.saddr),
IP_VS_DBG_ADDR(svc->af, &dest->addr),
ntohs(dest->port));
return dest;
}示例4: ip_vs_dh_schedule
static struct ip_vs_dest *
ip_vs_dh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
{
struct ip_vs_dest *dest;
struct ip_vs_dh_bucket *tbl;
struct ip_vs_iphdr iph;
ip_vs_fill_iphdr(svc->af, skb_network_header(skb), &iph);
IP_VS_DBG(6, "%s(): Scheduling...\n", __func__);
tbl = (struct ip_vs_dh_bucket *)svc->sched_data;
dest = ip_vs_dh_get(svc->af, tbl, &iph.daddr);
if (!dest
|| !(dest->flags & IP_VS_DEST_F_AVAILABLE)
|| atomic_read(&dest->weight) <= 0
|| is_overloaded(dest)) {
return NULL;
}
IP_VS_DBG_BUF(6, "DH: destination IP address %s --> server %s:%d\n",
IP_VS_DBG_ADDR(svc->af, &iph.daddr),
IP_VS_DBG_ADDR(svc->af, &dest->addr),
ntohs(dest->port));
return dest;
}示例5: ah_conn_out_get
static struct ip_vs_conn *
ah_conn_out_get(const struct sk_buff *skb, struct ip_vs_protocol *pp,
const struct iphdr *iph, unsigned int proto_off, int inverse)
{
struct ip_vs_conn *cp;
if (likely(!inverse)) {
cp = ip_vs_conn_out_get(IPPROTO_UDP,
iph->saddr,
htons(PORT_ISAKMP),
iph->daddr,
htons(PORT_ISAKMP));
} else {
cp = ip_vs_conn_out_get(IPPROTO_UDP,
iph->daddr,
htons(PORT_ISAKMP),
iph->saddr,
htons(PORT_ISAKMP));
}
if (!cp) {
IP_VS_DBG(12, "Unknown ISAKMP entry for inout packet "
"%s%s %u.%u.%u.%u->%u.%u.%u.%u\n",
inverse ? "ICMP+" : "",
pp->name,
NIPQUAD(iph->saddr),
NIPQUAD(iph->daddr));
}
return cp;
}示例6: ip_vs_sh_schedule
/*
* Source Hashing scheduling
*/
static struct ip_vs_dest *
ip_vs_sh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb,
struct ip_vs_iphdr *iph)
{
struct ip_vs_dest *dest;
struct ip_vs_sh_state *s;
__be16 port = 0;
IP_VS_DBG(6, "ip_vs_sh_schedule(): Scheduling...\n");
if (svc->flags & IP_VS_SVC_F_SCHED_SH_PORT)
port = ip_vs_sh_get_port(skb, iph);
s = (struct ip_vs_sh_state *) svc->sched_data;
if (svc->flags & IP_VS_SVC_F_SCHED_SH_FALLBACK)
dest = ip_vs_sh_get_fallback(svc, s, &iph->saddr, port);
else
dest = ip_vs_sh_get(svc, s, &iph->saddr, port);
if (!dest) {
ip_vs_scheduler_err(svc, "no destination available");
return NULL;
}
IP_VS_DBG_BUF(6, "SH: source IP address %s --> server %s:%d\n",
IP_VS_DBG_ADDR(svc->af, &iph->saddr),
IP_VS_DBG_ADDR(svc->af, &dest->addr),
ntohs(dest->port));
return dest;
}示例7: __ip_vs_get_out_rt
static struct rtable *
__ip_vs_get_out_rt(struct ip_vs_conn *cp, u32 rtos)
{
struct rtable *rt; /* Route to the other host */
struct ip_vs_dest *dest = cp->dest;
if (dest) {
spin_lock(&dest->dst_lock);
if (!(rt = (struct rtable *)
__ip_vs_dst_check(dest, rtos, 0))) {
struct flowi fl = {
.oif = 0,
.nl_u = {
.ip4_u = {
.daddr = dest->addr.ip,
.saddr = 0,
.tos = rtos, } },
};
if (ip_route_output_key(&init_net, &rt, &fl)) {
spin_unlock(&dest->dst_lock);
IP_VS_DBG_RL("ip_route_output error, dest: %pI4\n",
&dest->addr.ip);
return NULL;
}
__ip_vs_dst_set(dest, rtos, dst_clone(&rt->u.dst));
IP_VS_DBG(10, "new dst %pI4, refcnt=%d, rtos=%X\n",
&dest->addr.ip,
atomic_read(&rt->u.dst.__refcnt), rtos);
}
spin_unlock(&dest->dst_lock);
} else {示例8: __ip_vs_get_out_rt
/*
* Get route to destination or remote server
* rt_mode: flags, &1=Allow local dest, &2=Allow non-local dest,
* &4=Allow redirect from remote daddr to local
*/
static struct rtable *
__ip_vs_get_out_rt(struct sk_buff *skb, struct ip_vs_dest *dest,
__be32 daddr, u32 rtos, int rt_mode)
{
struct net *net = dev_net(skb_dst(skb)->dev);
struct rtable *rt; /* Route to the other host */
struct rtable *ort; /* Original route */
int local;
if (dest) {
spin_lock(&dest->dst_lock);
if (!(rt = (struct rtable *)
__ip_vs_dst_check(dest, rtos))) {
struct flowi fl = {
.oif = 0,
.nl_u = {
.ip4_u = {
.daddr = dest->addr.ip,
.saddr = 0,
.tos = rtos, } },
};
if (ip_route_output_key(net, &rt, &fl)) {
spin_unlock(&dest->dst_lock);
IP_VS_DBG_RL("ip_route_output error, dest: %pI4\n",
&dest->addr.ip);
return NULL;
}
__ip_vs_dst_set(dest, rtos, dst_clone(&rt->dst), 0);
IP_VS_DBG(10, "new dst %pI4, refcnt=%d, rtos=%X\n",
&dest->addr.ip,
atomic_read(&rt->dst.__refcnt), rtos);
}
spin_unlock(&dest->dst_lock);
} else {示例9: syn_proxy_ack_has_data
/*
* Check if skb has user data.
* Attention: decrease iph len also.
*/
static inline int
syn_proxy_ack_has_data(struct sk_buff *skb, struct ip_vs_iphdr *iph,
struct tcphdr *th)
{
IP_VS_DBG(6, "tot_len = %u, iph_len = %u, tcph_len = %u\n",
skb->len, iph->len, th->doff * 4);
return (skb->len - iph->len - th->doff * 4) != 0;
}示例10: ensure_mtu_is_adequate
static inline bool ensure_mtu_is_adequate(int skb_af, int rt_mode,
struct ip_vs_iphdr *ipvsh,
struct sk_buff *skb, int mtu)
{
#ifdef CONFIG_IP_VS_IPV6
if (skb_af == AF_INET6) {
struct net *net = dev_net(skb_dst(skb)->dev);
if (unlikely(__mtu_check_toobig_v6(skb, mtu))) {
if (!skb->dev)
skb->dev = net->loopback_dev;
/* only send ICMP too big on first fragment */
if (!ipvsh->fragoffs)
icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
IP_VS_DBG(1, "frag needed for %pI6c\n",
&ipv6_hdr(skb)->saddr);
return false;
}
} else
#endif
{
struct netns_ipvs *ipvs = net_ipvs(skb_net(skb));
/* If we're going to tunnel the packet and pmtu discovery
* is disabled, we'll just fragment it anyway
*/
if ((rt_mode & IP_VS_RT_MODE_TUNNEL) && !sysctl_pmtu_disc(ipvs))
return true;
if (unlikely(ip_hdr(skb)->frag_off & htons(IP_DF) &&
skb->len > mtu && !skb_is_gso(skb))) {
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
htonl(mtu));
IP_VS_DBG(1, "frag needed for %pI4\n",
&ip_hdr(skb)->saddr);
return false;
}
}
return true;
}示例11: ip_vs_sh_done_svc
static void ip_vs_sh_done_svc(struct ip_vs_service *svc)
{
struct ip_vs_sh_state *s = svc->sched_data;
/* got to clean up hash buckets here */
ip_vs_sh_flush(s);
/* release the table itself */
kfree_rcu(s, rcu_head);
IP_VS_DBG(6, "SH hash table (memory=%Zdbytes) released\n",
sizeof(struct ip_vs_sh_bucket)*IP_VS_SH_TAB_SIZE);
}示例12: ip_vs_rr_schedule
/*
* Round-Robin Scheduling
*/
static struct ip_vs_dest *
ip_vs_rr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
{
struct list_head *p, *q;
struct ip_vs_dest *dest;
IP_VS_DBG(6, "ip_vs_rr_schedule(): Scheduling...\n");
write_lock(&svc->sched_lock);
p = (struct list_head *)svc->sched_data;
p = p->next;
q = p;
do {
/* skip list head */
if (q == &svc->destinations) {
q = q->next;
continue;
}
dest = list_entry(q, struct ip_vs_dest, n_list);
if (!(dest->flags & IP_VS_DEST_F_OVERLOAD) &&
atomic_read(&dest->weight) > 0)
/* HIT */
goto out;
q = q->next;
} while (q != p);
write_unlock(&svc->sched_lock);
return NULL;
out:
svc->sched_data = q;
write_unlock(&svc->sched_lock);
IP_VS_DBG(6, "RR: server %u.%u.%u.%u:%u "
"activeconns %d refcnt %d weight %d\n",
NIPQUAD(dest->addr), ntohs(dest->port),
atomic_read(&dest->activeconns),
atomic_read(&dest->refcnt), atomic_read(&dest->weight));
return dest;
}示例13: ip_vs_sh_schedule
/*
* Source Hashing scheduling
*/
static struct ip_vs_dest *
ip_vs_sh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
{
struct ip_vs_dest *dest;
struct ip_vs_sh_bucket *tbl;
struct iphdr *iph = ip_hdr(skb);
IP_VS_DBG(6, "ip_vs_sh_schedule(): Scheduling...\n");
tbl = (struct ip_vs_sh_bucket *)svc->sched_data;
dest = ip_vs_sh_get(tbl, iph->saddr);
if (!dest
|| !(dest->flags & IP_VS_DEST_F_AVAILABLE)
|| atomic_read(&dest->weight) <= 0
|| is_overloaded(dest)) {
return NULL;
}
IP_VS_DBG(6, "SH: source IP address %pI4 --> server %pI4:%u\n",
&iph->saddr, &dest->addr, ntohs(dest->port));
return dest;
}示例14: ip_vs_dh_done_svc
static int ip_vs_dh_done_svc(struct ip_vs_service *svc)
{
struct ip_vs_dh_bucket *tbl = svc->sched_data;
ip_vs_dh_flush(tbl);
kfree(svc->sched_data);
IP_VS_DBG(6, "DH hash table (memory=%Zdbytes) released\n",
sizeof(struct ip_vs_dh_bucket)*IP_VS_DH_TAB_SIZE);
return 0;
}示例15: ip_vs_wrr_schedule
/*
* Weighted Round-Robin Scheduling
*/
static struct ip_vs_dest *
ip_vs_wrr_schedule(struct ip_vs_service *svc, struct iphdr *iph)
{
struct ip_vs_dest *dest;
struct ip_vs_wrr_mark *mark = svc->sched_data;
IP_VS_DBG(6, "ip_vs_wrr_schedule(): Scheduling...\n");
/*
* This loop will always terminate, because 0<mark->cw<max_weight,
* and at least one server has its weight equal to max_weight.
*/
write_lock(&svc->sched_lock);
while (1) {
if (mark->cl == &svc->destinations) {
/* it is at the head of the destination list */
if (mark->cl == mark->cl->next) {
/* no dest entry */
write_unlock(&svc->sched_lock);
return NULL;
}
mark->cl = svc->destinations.next;
mark->cw -= mark->di;
if (mark->cw <= 0) {
mark->cw = mark->mw;
/*
* Still zero, which means no available servers.
*/
if (mark->cw == 0) {
mark->cl = &svc->destinations;
write_unlock(&svc->sched_lock);
IP_VS_INFO("ip_vs_wrr_schedule(): "
"no available servers\n");
return NULL;
}
}
}
else mark->cl = mark->cl->next;
if (mark->cl != &svc->destinations) {
/* not at the head of the list */
dest = list_entry(mark->cl, struct ip_vs_dest, n_list);
if (atomic_read(&dest->weight) >= mark->cw) {
write_unlock(&svc->sched_lock);
break;
}
}
}