#define IPVS_OPT_F_PARAM (1 << (IPVS_OPT_PARAM-1))
struct ip_vs_sync_thread_data {
- struct net *net;
+ struct netns_ipvs *ipvs;
struct socket *sock;
char *buf;
int id;
/* ip_vs_sync_conn entries start here */
};
+union ipvs_sockaddr {
+ struct sockaddr_in in;
+ struct sockaddr_in6 in6;
+};
+
struct ip_vs_sync_buff {
struct list_head list;
unsigned long firstuse;
* Create a new sync buffer for Version 1 proto.
*/
static inline struct ip_vs_sync_buff *
-ip_vs_sync_buff_create(struct netns_ipvs *ipvs)
+ip_vs_sync_buff_create(struct netns_ipvs *ipvs, unsigned int len)
{
struct ip_vs_sync_buff *sb;
if (!(sb=kmalloc(sizeof(struct ip_vs_sync_buff), GFP_ATOMIC)))
return NULL;
- sb->mesg = kmalloc(ipvs->send_mesg_maxlen, GFP_ATOMIC);
+ len = max_t(unsigned int, len + sizeof(struct ip_vs_sync_mesg),
+ ipvs->mcfg.sync_maxlen);
+ sb->mesg = kmalloc(len, GFP_ATOMIC);
if (!sb->mesg) {
kfree(sb);
return NULL;
}
sb->mesg->reserved = 0; /* old nr_conns i.e. must be zero now */
sb->mesg->version = SYNC_PROTO_VER;
- sb->mesg->syncid = ipvs->master_syncid;
+ sb->mesg->syncid = ipvs->mcfg.syncid;
sb->mesg->size = htons(sizeof(struct ip_vs_sync_mesg));
sb->mesg->nr_conns = 0;
sb->mesg->spare = 0;
sb->head = (unsigned char *)sb->mesg + sizeof(struct ip_vs_sync_mesg);
- sb->end = (unsigned char *)sb->mesg + ipvs->send_mesg_maxlen;
+ sb->end = (unsigned char *)sb->mesg + len;
sb->firstuse = jiffies;
return sb;
* Create a new sync buffer for Version 0 proto.
*/
static inline struct ip_vs_sync_buff *
-ip_vs_sync_buff_create_v0(struct netns_ipvs *ipvs)
+ip_vs_sync_buff_create_v0(struct netns_ipvs *ipvs, unsigned int len)
{
struct ip_vs_sync_buff *sb;
struct ip_vs_sync_mesg_v0 *mesg;
if (!(sb=kmalloc(sizeof(struct ip_vs_sync_buff), GFP_ATOMIC)))
return NULL;
- sb->mesg = kmalloc(ipvs->send_mesg_maxlen, GFP_ATOMIC);
+ len = max_t(unsigned int, len + sizeof(struct ip_vs_sync_mesg_v0),
+ ipvs->mcfg.sync_maxlen);
+ sb->mesg = kmalloc(len, GFP_ATOMIC);
if (!sb->mesg) {
kfree(sb);
return NULL;
}
mesg = (struct ip_vs_sync_mesg_v0 *)sb->mesg;
mesg->nr_conns = 0;
- mesg->syncid = ipvs->master_syncid;
+ mesg->syncid = ipvs->mcfg.syncid;
mesg->size = htons(sizeof(struct ip_vs_sync_mesg_v0));
sb->head = (unsigned char *)mesg + sizeof(struct ip_vs_sync_mesg_v0);
- sb->end = (unsigned char *)mesg + ipvs->send_mesg_maxlen;
+ sb->end = (unsigned char *)mesg + len;
sb->firstuse = jiffies;
return sb;
}
* Version 0 , could be switched in by sys_ctl.
* Add an ip_vs_conn information into the current sync_buff.
*/
-static void ip_vs_sync_conn_v0(struct net *net, struct ip_vs_conn *cp,
+static void ip_vs_sync_conn_v0(struct netns_ipvs *ipvs, struct ip_vs_conn *cp,
int pkts)
{
- struct netns_ipvs *ipvs = net_ipvs(net);
struct ip_vs_sync_mesg_v0 *m;
struct ip_vs_sync_conn_v0 *s;
struct ip_vs_sync_buff *buff;
struct ipvs_master_sync_state *ms;
int id;
- int len;
+ unsigned int len;
if (unlikely(cp->af != AF_INET))
return;
id = select_master_thread_id(ipvs, cp);
ms = &ipvs->ms[id];
buff = ms->sync_buff;
+ len = (cp->flags & IP_VS_CONN_F_SEQ_MASK) ? FULL_CONN_SIZE :
+ SIMPLE_CONN_SIZE;
if (buff) {
m = (struct ip_vs_sync_mesg_v0 *) buff->mesg;
/* Send buffer if it is for v1 */
- if (!m->nr_conns) {
+ if (buff->head + len > buff->end || !m->nr_conns) {
sb_queue_tail(ipvs, ms);
ms->sync_buff = NULL;
buff = NULL;
}
}
if (!buff) {
- buff = ip_vs_sync_buff_create_v0(ipvs);
+ buff = ip_vs_sync_buff_create_v0(ipvs, len);
if (!buff) {
spin_unlock_bh(&ipvs->sync_buff_lock);
pr_err("ip_vs_sync_buff_create failed.\n");
ms->sync_buff = buff;
}
- len = (cp->flags & IP_VS_CONN_F_SEQ_MASK) ? FULL_CONN_SIZE :
- SIMPLE_CONN_SIZE;
m = (struct ip_vs_sync_mesg_v0 *) buff->mesg;
s = (struct ip_vs_sync_conn_v0 *) buff->head;
m->nr_conns++;
m->size = htons(ntohs(m->size) + len);
buff->head += len;
-
- /* check if there is a space for next one */
- if (buff->head + FULL_CONN_SIZE > buff->end) {
- sb_queue_tail(ipvs, ms);
- ms->sync_buff = NULL;
- }
spin_unlock_bh(&ipvs->sync_buff_lock);
/* synchronize its controller if it has */
pkts = atomic_add_return(1, &cp->in_pkts);
else
pkts = sysctl_sync_threshold(ipvs);
- ip_vs_sync_conn(net, cp->control, pkts);
+ ip_vs_sync_conn(ipvs, cp, pkts);
}
}
* Called by ip_vs_in.
* Sending Version 1 messages
*/
-void ip_vs_sync_conn(struct net *net, struct ip_vs_conn *cp, int pkts)
+void ip_vs_sync_conn(struct netns_ipvs *ipvs, struct ip_vs_conn *cp, int pkts)
{
- struct netns_ipvs *ipvs = net_ipvs(net);
struct ip_vs_sync_mesg *m;
union ip_vs_sync_conn *s;
struct ip_vs_sync_buff *buff;
/* Handle old version of the protocol */
if (sysctl_sync_ver(ipvs) == 0) {
- ip_vs_sync_conn_v0(net, cp, pkts);
+ ip_vs_sync_conn_v0(ipvs, cp, pkts);
return;
}
/* Do not sync ONE PACKET */
}
if (!buff) {
- buff = ip_vs_sync_buff_create(ipvs);
+ buff = ip_vs_sync_buff_create(ipvs, len);
if (!buff) {
spin_unlock_bh(&ipvs->sync_buff_lock);
pr_err("ip_vs_sync_buff_create failed.\n");
* fill_param used by version 1
*/
static inline int
-ip_vs_conn_fill_param_sync(struct net *net, int af, union ip_vs_sync_conn *sc,
+ip_vs_conn_fill_param_sync(struct netns_ipvs *ipvs, int af, union ip_vs_sync_conn *sc,
struct ip_vs_conn_param *p,
__u8 *pe_data, unsigned int pe_data_len,
__u8 *pe_name, unsigned int pe_name_len)
{
#ifdef CONFIG_IP_VS_IPV6
if (af == AF_INET6)
- ip_vs_conn_fill_param(net, af, sc->v6.protocol,
+ ip_vs_conn_fill_param(ipvs, af, sc->v6.protocol,
(const union nf_inet_addr *)&sc->v6.caddr,
sc->v6.cport,
(const union nf_inet_addr *)&sc->v6.vaddr,
sc->v6.vport, p);
else
#endif
- ip_vs_conn_fill_param(net, af, sc->v4.protocol,
+ ip_vs_conn_fill_param(ipvs, af, sc->v4.protocol,
(const union nf_inet_addr *)&sc->v4.caddr,
sc->v4.cport,
(const union nf_inet_addr *)&sc->v4.vaddr,
* Param: ...
* timeout is in sec.
*/
-static void ip_vs_proc_conn(struct net *net, struct ip_vs_conn_param *param,
+static void ip_vs_proc_conn(struct netns_ipvs *ipvs, struct ip_vs_conn_param *param,
unsigned int flags, unsigned int state,
unsigned int protocol, unsigned int type,
const union nf_inet_addr *daddr, __be16 dport,
{
struct ip_vs_dest *dest;
struct ip_vs_conn *cp;
- struct netns_ipvs *ipvs = net_ipvs(net);
if (!(flags & IP_VS_CONN_F_TEMPLATE)) {
cp = ip_vs_conn_in_get(param);
* with synchronization, so we can make the assumption that
* the svc_af is the same as the dest_af
*/
- dest = ip_vs_find_dest(net, type, type, daddr, dport,
+ dest = ip_vs_find_dest(ipvs, type, type, daddr, dport,
param->vaddr, param->vport, protocol,
fwmark, flags);
} else {
struct ip_vs_proto_data *pd;
- pd = ip_vs_proto_data_get(net, protocol);
+ pd = ip_vs_proto_data_get(ipvs, protocol);
if (!(flags & IP_VS_CONN_F_TEMPLATE) && pd && pd->timeout_table)
cp->timeout = pd->timeout_table[state];
else
/*
* Process received multicast message for Version 0
*/
-static void ip_vs_process_message_v0(struct net *net, const char *buffer,
+static void ip_vs_process_message_v0(struct netns_ipvs *ipvs, const char *buffer,
const size_t buflen)
{
struct ip_vs_sync_mesg_v0 *m = (struct ip_vs_sync_mesg_v0 *)buffer;
}
}
- ip_vs_conn_fill_param(net, AF_INET, s->protocol,
+ ip_vs_conn_fill_param(ipvs, AF_INET, s->protocol,
(const union nf_inet_addr *)&s->caddr,
s->cport,
(const union nf_inet_addr *)&s->vaddr,
s->vport, ¶m);
/* Send timeout as Zero */
- ip_vs_proc_conn(net, ¶m, flags, state, s->protocol, AF_INET,
+ ip_vs_proc_conn(ipvs, ¶m, flags, state, s->protocol, AF_INET,
(union nf_inet_addr *)&s->daddr, s->dport,
0, 0, opt);
}
/*
* Process a Version 1 sync. connection
*/
-static inline int ip_vs_proc_sync_conn(struct net *net, __u8 *p, __u8 *msg_end)
+static inline int ip_vs_proc_sync_conn(struct netns_ipvs *ipvs, __u8 *p, __u8 *msg_end)
{
struct ip_vs_sync_conn_options opt;
union ip_vs_sync_conn *s;
state = 0;
}
}
- if (ip_vs_conn_fill_param_sync(net, af, s, ¶m, pe_data,
+ if (ip_vs_conn_fill_param_sync(ipvs, af, s, ¶m, pe_data,
pe_data_len, pe_name, pe_name_len)) {
retc = 50;
goto out;
}
/* If only IPv4, just silent skip IPv6 */
if (af == AF_INET)
- ip_vs_proc_conn(net, ¶m, flags, state, s->v4.protocol, af,
+ ip_vs_proc_conn(ipvs, ¶m, flags, state, s->v4.protocol, af,
(union nf_inet_addr *)&s->v4.daddr, s->v4.dport,
ntohl(s->v4.timeout), ntohl(s->v4.fwmark),
(opt_flags & IPVS_OPT_F_SEQ_DATA ? &opt : NULL)
);
#ifdef CONFIG_IP_VS_IPV6
else
- ip_vs_proc_conn(net, ¶m, flags, state, s->v6.protocol, af,
+ ip_vs_proc_conn(ipvs, ¶m, flags, state, s->v6.protocol, af,
(union nf_inet_addr *)&s->v6.daddr, s->v6.dport,
ntohl(s->v6.timeout), ntohl(s->v6.fwmark),
(opt_flags & IPVS_OPT_F_SEQ_DATA ? &opt : NULL)
* ip_vs_conn entries.
* Handles Version 0 & 1
*/
-static void ip_vs_process_message(struct net *net, __u8 *buffer,
+static void ip_vs_process_message(struct netns_ipvs *ipvs, __u8 *buffer,
const size_t buflen)
{
- struct netns_ipvs *ipvs = net_ipvs(net);
struct ip_vs_sync_mesg *m2 = (struct ip_vs_sync_mesg *)buffer;
__u8 *p, *msg_end;
int i, nr_conns;
return;
}
/* SyncID sanity check */
- if (ipvs->backup_syncid != 0 && m2->syncid != ipvs->backup_syncid) {
+ if (ipvs->bcfg.syncid != 0 && m2->syncid != ipvs->bcfg.syncid) {
IP_VS_DBG(7, "BACKUP, Ignoring syncid = %d\n", m2->syncid);
return;
}
return;
}
/* Process a single sync_conn */
- retc = ip_vs_proc_sync_conn(net, p, msg_end);
+ retc = ip_vs_proc_sync_conn(ipvs, p, msg_end);
if (retc < 0) {
IP_VS_ERR_RL("BACKUP, Dropping buffer, Err: %d in decoding\n",
retc);
}
} else {
/* Old type of message */
- ip_vs_process_message_v0(net, buffer, buflen);
+ ip_vs_process_message_v0(ipvs, buffer, buflen);
return;
}
}
/* setsockopt(sock, SOL_IP, IP_MULTICAST_LOOP, &loop, sizeof(loop)); */
lock_sock(sk);
inet->mc_loop = loop ? 1 : 0;
+#ifdef CONFIG_IP_VS_IPV6
+ if (sk->sk_family == AF_INET6) {
+ struct ipv6_pinfo *np = inet6_sk(sk);
+
+ /* IPV6_MULTICAST_LOOP */
+ np->mc_loop = loop ? 1 : 0;
+ }
+#endif
release_sock(sk);
}
/* setsockopt(sock, SOL_IP, IP_MULTICAST_TTL, &ttl, sizeof(ttl)); */
lock_sock(sk);
inet->mc_ttl = ttl;
+#ifdef CONFIG_IP_VS_IPV6
+ if (sk->sk_family == AF_INET6) {
+ struct ipv6_pinfo *np = inet6_sk(sk);
+
+ /* IPV6_MULTICAST_HOPS */
+ np->mcast_hops = ttl;
+ }
+#endif
+ release_sock(sk);
+}
+
+/* Control fragmentation of messages */
+static void set_mcast_pmtudisc(struct sock *sk, int val)
+{
+ struct inet_sock *inet = inet_sk(sk);
+
+ /* setsockopt(sock, SOL_IP, IP_MTU_DISCOVER, &val, sizeof(val)); */
+ lock_sock(sk);
+ inet->pmtudisc = val;
+#ifdef CONFIG_IP_VS_IPV6
+ if (sk->sk_family == AF_INET6) {
+ struct ipv6_pinfo *np = inet6_sk(sk);
+
+ /* IPV6_MTU_DISCOVER */
+ np->pmtudisc = val;
+ }
+#endif
release_sock(sk);
}
lock_sock(sk);
inet->mc_index = dev->ifindex;
/* inet->mc_addr = 0; */
- release_sock(sk);
-
- return 0;
-}
-
+#ifdef CONFIG_IP_VS_IPV6
+ if (sk->sk_family == AF_INET6) {
+ struct ipv6_pinfo *np = inet6_sk(sk);
-/*
- * Set the maximum length of sync message according to the
- * specified interface's MTU.
- */
-static int set_sync_mesg_maxlen(struct net *net, int sync_state)
-{
- struct netns_ipvs *ipvs = net_ipvs(net);
- struct net_device *dev;
- int num;
-
- if (sync_state == IP_VS_STATE_MASTER) {
- dev = __dev_get_by_name(net, ipvs->master_mcast_ifn);
- if (!dev)
- return -ENODEV;
-
- num = (dev->mtu - sizeof(struct iphdr) -
- sizeof(struct udphdr) -
- SYNC_MESG_HEADER_LEN - 20) / SIMPLE_CONN_SIZE;
- ipvs->send_mesg_maxlen = SYNC_MESG_HEADER_LEN +
- SIMPLE_CONN_SIZE * min(num, MAX_CONNS_PER_SYNCBUFF);
- IP_VS_DBG(7, "setting the maximum length of sync sending "
- "message %d.\n", ipvs->send_mesg_maxlen);
- } else if (sync_state == IP_VS_STATE_BACKUP) {
- dev = __dev_get_by_name(net, ipvs->backup_mcast_ifn);
- if (!dev)
- return -ENODEV;
-
- ipvs->recv_mesg_maxlen = dev->mtu -
- sizeof(struct iphdr) - sizeof(struct udphdr);
- IP_VS_DBG(7, "setting the maximum length of sync receiving "
- "message %d.\n", ipvs->recv_mesg_maxlen);
+ /* IPV6_MULTICAST_IF */
+ np->mcast_oif = dev->ifindex;
}
+#endif
+ release_sock(sk);
return 0;
}
mreq.imr_ifindex = dev->ifindex;
- rtnl_lock();
lock_sock(sk);
ret = ip_mc_join_group(sk, &mreq);
release_sock(sk);
- rtnl_unlock();
return ret;
}
+#ifdef CONFIG_IP_VS_IPV6
+static int join_mcast_group6(struct sock *sk, struct in6_addr *addr,
+ char *ifname)
+{
+ struct net *net = sock_net(sk);
+ struct net_device *dev;
+ int ret;
+
+ dev = __dev_get_by_name(net, ifname);
+ if (!dev)
+ return -ENODEV;
+ if (sk->sk_bound_dev_if && dev->ifindex != sk->sk_bound_dev_if)
+ return -EINVAL;
+
+ lock_sock(sk);
+ ret = ipv6_sock_mc_join(sk, dev->ifindex, addr);
+ release_sock(sk);
+
+ return ret;
+}
+#endif
static int bind_mcastif_addr(struct socket *sock, char *ifname)
{
return sock->ops->bind(sock, (struct sockaddr*)&sin, sizeof(sin));
}
+static void get_mcast_sockaddr(union ipvs_sockaddr *sa, int *salen,
+ struct ipvs_sync_daemon_cfg *c, int id)
+{
+ if (AF_INET6 == c->mcast_af) {
+ sa->in6 = (struct sockaddr_in6) {
+ .sin6_family = AF_INET6,
+ .sin6_port = htons(c->mcast_port + id),
+ };
+ sa->in6.sin6_addr = c->mcast_group.in6;
+ *salen = sizeof(sa->in6);
+ } else {
+ sa->in = (struct sockaddr_in) {
+ .sin_family = AF_INET,
+ .sin_port = htons(c->mcast_port + id),
+ };
+ sa->in.sin_addr = c->mcast_group.in;
+ *salen = sizeof(sa->in);
+ }
+}
+
/*
* Set up sending multicast socket over UDP
*/
-static struct socket *make_send_sock(struct net *net, int id)
+static struct socket *make_send_sock(struct netns_ipvs *ipvs, int id)
{
- struct netns_ipvs *ipvs = net_ipvs(net);
/* multicast addr */
- struct sockaddr_in mcast_addr = {
- .sin_family = AF_INET,
- .sin_port = cpu_to_be16(IP_VS_SYNC_PORT + id),
- .sin_addr.s_addr = cpu_to_be32(IP_VS_SYNC_GROUP),
- };
+ union ipvs_sockaddr mcast_addr;
struct socket *sock;
- int result;
+ int result, salen;
- /* First create a socket move it to right name space later */
- result = sock_create_kern(PF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock);
+ /* First create a socket */
+ result = sock_create_kern(ipvs->net, ipvs->mcfg.mcast_af, SOCK_DGRAM,
+ IPPROTO_UDP, &sock);
if (result < 0) {
pr_err("Error during creation of socket; terminating\n");
return ERR_PTR(result);
}
- /*
- * Kernel sockets that are a part of a namespace, should not
- * hold a reference to a namespace in order to allow to stop it.
- * After sk_change_net should be released using sk_release_kernel.
- */
- sk_change_net(sock->sk, net);
- result = set_mcast_if(sock->sk, ipvs->master_mcast_ifn);
+ result = set_mcast_if(sock->sk, ipvs->mcfg.mcast_ifn);
if (result < 0) {
pr_err("Error setting outbound mcast interface\n");
goto error;
}
set_mcast_loop(sock->sk, 0);
- set_mcast_ttl(sock->sk, 1);
+ set_mcast_ttl(sock->sk, ipvs->mcfg.mcast_ttl);
+ /* Allow fragmentation if MTU changes */
+ set_mcast_pmtudisc(sock->sk, IP_PMTUDISC_DONT);
result = sysctl_sync_sock_size(ipvs);
if (result > 0)
set_sock_size(sock->sk, 1, result);
- result = bind_mcastif_addr(sock, ipvs->master_mcast_ifn);
+ if (AF_INET == ipvs->mcfg.mcast_af)
+ result = bind_mcastif_addr(sock, ipvs->mcfg.mcast_ifn);
+ else
+ result = 0;
if (result < 0) {
pr_err("Error binding address of the mcast interface\n");
goto error;
}
+ get_mcast_sockaddr(&mcast_addr, &salen, &ipvs->mcfg, id);
result = sock->ops->connect(sock, (struct sockaddr *) &mcast_addr,
- sizeof(struct sockaddr), 0);
+ salen, 0);
if (result < 0) {
pr_err("Error connecting to the multicast addr\n");
goto error;
return sock;
error:
- sk_release_kernel(sock->sk);
+ sock_release(sock);
return ERR_PTR(result);
}
/*
* Set up receiving multicast socket over UDP
*/
-static struct socket *make_receive_sock(struct net *net, int id)
+static struct socket *make_receive_sock(struct netns_ipvs *ipvs, int id)
{
- struct netns_ipvs *ipvs = net_ipvs(net);
/* multicast addr */
- struct sockaddr_in mcast_addr = {
- .sin_family = AF_INET,
- .sin_port = cpu_to_be16(IP_VS_SYNC_PORT + id),
- .sin_addr.s_addr = cpu_to_be32(IP_VS_SYNC_GROUP),
- };
+ union ipvs_sockaddr mcast_addr;
struct socket *sock;
- int result;
+ int result, salen;
/* First create a socket */
- result = sock_create_kern(PF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock);
+ result = sock_create_kern(ipvs->net, ipvs->bcfg.mcast_af, SOCK_DGRAM,
+ IPPROTO_UDP, &sock);
if (result < 0) {
pr_err("Error during creation of socket; terminating\n");
return ERR_PTR(result);
}
- /*
- * Kernel sockets that are a part of a namespace, should not
- * hold a reference to a namespace in order to allow to stop it.
- * After sk_change_net should be released using sk_release_kernel.
- */
- sk_change_net(sock->sk, net);
/* it is equivalent to the REUSEADDR option in user-space */
sock->sk->sk_reuse = SK_CAN_REUSE;
result = sysctl_sync_sock_size(ipvs);
if (result > 0)
set_sock_size(sock->sk, 0, result);
- result = sock->ops->bind(sock, (struct sockaddr *) &mcast_addr,
- sizeof(struct sockaddr));
+ get_mcast_sockaddr(&mcast_addr, &salen, &ipvs->bcfg, id);
+ result = sock->ops->bind(sock, (struct sockaddr *)&mcast_addr, salen);
if (result < 0) {
pr_err("Error binding to the multicast addr\n");
goto error;
}
/* join the multicast group */
- result = join_mcast_group(sock->sk,
- (struct in_addr *) &mcast_addr.sin_addr,
- ipvs->backup_mcast_ifn);
+#ifdef CONFIG_IP_VS_IPV6
+ if (ipvs->bcfg.mcast_af == AF_INET6)
+ result = join_mcast_group6(sock->sk, &mcast_addr.in6.sin6_addr,
+ ipvs->bcfg.mcast_ifn);
+ else
+#endif
+ result = join_mcast_group(sock->sk, &mcast_addr.in.sin_addr,
+ ipvs->bcfg.mcast_ifn);
if (result < 0) {
pr_err("Error joining to the multicast group\n");
goto error;
return sock;
error:
- sk_release_kernel(sock->sk);
+ sock_release(sock);
return ERR_PTR(result);
}
static int sync_thread_master(void *data)
{
struct ip_vs_sync_thread_data *tinfo = data;
- struct netns_ipvs *ipvs = net_ipvs(tinfo->net);
+ struct netns_ipvs *ipvs = tinfo->ipvs;
struct ipvs_master_sync_state *ms = &ipvs->ms[tinfo->id];
struct sock *sk = tinfo->sock->sk;
struct ip_vs_sync_buff *sb;
pr_info("sync thread started: state = MASTER, mcast_ifn = %s, "
"syncid = %d, id = %d\n",
- ipvs->master_mcast_ifn, ipvs->master_syncid, tinfo->id);
+ ipvs->mcfg.mcast_ifn, ipvs->mcfg.syncid, tinfo->id);
for (;;) {
sb = next_sync_buff(ipvs, ms);
ip_vs_sync_buff_release(sb);
/* release the sending multicast socket */
- sk_release_kernel(tinfo->sock->sk);
+ sock_release(tinfo->sock);
kfree(tinfo);
return 0;
static int sync_thread_backup(void *data)
{
struct ip_vs_sync_thread_data *tinfo = data;
- struct netns_ipvs *ipvs = net_ipvs(tinfo->net);
+ struct netns_ipvs *ipvs = tinfo->ipvs;
int len;
pr_info("sync thread started: state = BACKUP, mcast_ifn = %s, "
"syncid = %d, id = %d\n",
- ipvs->backup_mcast_ifn, ipvs->backup_syncid, tinfo->id);
+ ipvs->bcfg.mcast_ifn, ipvs->bcfg.syncid, tinfo->id);
while (!kthread_should_stop()) {
wait_event_interruptible(*sk_sleep(tinfo->sock->sk),
/* do we have data now? */
while (!skb_queue_empty(&(tinfo->sock->sk->sk_receive_queue))) {
len = ip_vs_receive(tinfo->sock, tinfo->buf,
- ipvs->recv_mesg_maxlen);
+ ipvs->bcfg.sync_maxlen);
if (len <= 0) {
if (len != -EAGAIN)
pr_err("receiving message error\n");
break;
}
- ip_vs_process_message(tinfo->net, tinfo->buf, len);
+ ip_vs_process_message(ipvs, tinfo->buf, len);
}
}
/* release the sending multicast socket */
- sk_release_kernel(tinfo->sock->sk);
+ sock_release(tinfo->sock);
kfree(tinfo->buf);
kfree(tinfo);
}
-int start_sync_thread(struct net *net, int state, char *mcast_ifn, __u8 syncid)
+int start_sync_thread(struct netns_ipvs *ipvs, struct ipvs_sync_daemon_cfg *c,
+ int state)
{
struct ip_vs_sync_thread_data *tinfo;
struct task_struct **array = NULL, *task;
struct socket *sock;
- struct netns_ipvs *ipvs = net_ipvs(net);
+ struct net_device *dev;
char *name;
int (*threadfn)(void *data);
- int id, count;
+ int id, count, hlen;
int result = -ENOMEM;
+ u16 mtu, min_mtu;
IP_VS_DBG(7, "%s(): pid %d\n", __func__, task_pid_nr(current));
IP_VS_DBG(7, "Each ip_vs_sync_conn entry needs %Zd bytes\n",
} else
count = ipvs->threads_mask + 1;
+ if (c->mcast_af == AF_UNSPEC) {
+ c->mcast_af = AF_INET;
+ c->mcast_group.ip = cpu_to_be32(IP_VS_SYNC_GROUP);
+ }
+ if (!c->mcast_port)
+ c->mcast_port = IP_VS_SYNC_PORT;
+ if (!c->mcast_ttl)
+ c->mcast_ttl = 1;
+
+ dev = __dev_get_by_name(ipvs->net, c->mcast_ifn);
+ if (!dev) {
+ pr_err("Unknown mcast interface: %s\n", c->mcast_ifn);
+ return -ENODEV;
+ }
+ hlen = (AF_INET6 == c->mcast_af) ?
+ sizeof(struct ipv6hdr) + sizeof(struct udphdr) :
+ sizeof(struct iphdr) + sizeof(struct udphdr);
+ mtu = (state == IP_VS_STATE_BACKUP) ?
+ clamp(dev->mtu, 1500U, 65535U) : 1500U;
+ min_mtu = (state == IP_VS_STATE_BACKUP) ? 1024 : 1;
+
+ if (c->sync_maxlen)
+ c->sync_maxlen = clamp_t(unsigned int,
+ c->sync_maxlen, min_mtu,
+ 65535 - hlen);
+ else
+ c->sync_maxlen = mtu - hlen;
+
if (state == IP_VS_STATE_MASTER) {
if (ipvs->ms)
return -EEXIST;
- strlcpy(ipvs->master_mcast_ifn, mcast_ifn,
- sizeof(ipvs->master_mcast_ifn));
- ipvs->master_syncid = syncid;
+ ipvs->mcfg = *c;
name = "ipvs-m:%d:%d";
threadfn = sync_thread_master;
} else if (state == IP_VS_STATE_BACKUP) {
if (ipvs->backup_threads)
return -EEXIST;
- strlcpy(ipvs->backup_mcast_ifn, mcast_ifn,
- sizeof(ipvs->backup_mcast_ifn));
- ipvs->backup_syncid = syncid;
+ ipvs->bcfg = *c;
name = "ipvs-b:%d:%d";
threadfn = sync_thread_backup;
} else {
if (!array)
goto out;
}
- set_sync_mesg_maxlen(net, state);
tinfo = NULL;
for (id = 0; id < count; id++) {
if (state == IP_VS_STATE_MASTER)
- sock = make_send_sock(net, id);
+ sock = make_send_sock(ipvs, id);
else
- sock = make_receive_sock(net, id);
+ sock = make_receive_sock(ipvs, id);
if (IS_ERR(sock)) {
result = PTR_ERR(sock);
goto outtinfo;
tinfo = kmalloc(sizeof(*tinfo), GFP_KERNEL);
if (!tinfo)
goto outsocket;
- tinfo->net = net;
+ tinfo->ipvs = ipvs;
tinfo->sock = sock;
if (state == IP_VS_STATE_BACKUP) {
- tinfo->buf = kmalloc(ipvs->recv_mesg_maxlen,
+ tinfo->buf = kmalloc(ipvs->bcfg.sync_maxlen,
GFP_KERNEL);
if (!tinfo->buf)
goto outtinfo;
return 0;
outsocket:
- sk_release_kernel(sock->sk);
+ sock_release(sock);
outtinfo:
if (tinfo) {
- sk_release_kernel(tinfo->sock->sk);
+ sock_release(tinfo->sock);
kfree(tinfo->buf);
kfree(tinfo);
}
}
-int stop_sync_thread(struct net *net, int state)
+int stop_sync_thread(struct netns_ipvs *ipvs, int state)
{
- struct netns_ipvs *ipvs = net_ipvs(net);
struct task_struct **array;
int id;
int retc = -EINVAL;
/*
* Initialize data struct for each netns
*/
-int __net_init ip_vs_sync_net_init(struct net *net)
+int __net_init ip_vs_sync_net_init(struct netns_ipvs *ipvs)
{
- struct netns_ipvs *ipvs = net_ipvs(net);
-
__mutex_init(&ipvs->sync_mutex, "ipvs->sync_mutex", &__ipvs_sync_key);
spin_lock_init(&ipvs->sync_lock);
spin_lock_init(&ipvs->sync_buff_lock);
return 0;
}
-void ip_vs_sync_net_cleanup(struct net *net)
+void ip_vs_sync_net_cleanup(struct netns_ipvs *ipvs)
{
int retc;
- struct netns_ipvs *ipvs = net_ipvs(net);
mutex_lock(&ipvs->sync_mutex);
- retc = stop_sync_thread(net, IP_VS_STATE_MASTER);
+ retc = stop_sync_thread(ipvs, IP_VS_STATE_MASTER);
if (retc && retc != -ESRCH)
pr_err("Failed to stop Master Daemon\n");
- retc = stop_sync_thread(net, IP_VS_STATE_BACKUP);
+ retc = stop_sync_thread(ipvs, IP_VS_STATE_BACKUP);
if (retc && retc != -ESRCH)
pr_err("Failed to stop Backup Daemon\n");
mutex_unlock(&ipvs->sync_mutex);
Code Review / kvmfornfv.git / blobdiff