type stringclasses 5
values | content stringlengths 9 163k |
|---|---|
includes | #include <linux/if_infiniband.h> |
includes | #include <linux/route.h> |
includes | #include <linux/inetdevice.h> |
includes | #include <linux/init.h> |
includes | #include <linux/slab.h> |
includes | #include <linux/sysctl.h> |
includes | #include <linux/capability.h> |
includes | #include <linux/delay.h> |
includes | #include <linux/notifier.h> |
includes | #include <linux/string.h> |
includes |
#include <net/net_namespace.h> |
includes | #include <net/sock.h> |
includes | #include <net/snmp.h> |
includes |
#include <net/ipv6.h> |
includes | #include <net/protocol.h> |
includes | #include <net/ndisc.h> |
includes | #include <net/ip6_route.h> |
includes | #include <net/addrconf.h> |
includes | #include <net/tcp.h> |
includes | #include <net/ip.h> |
includes | #include <net/netlink.h> |
includes | #include <net/pkt_sched.h> |
includes | #include <linux/if_tunnel.h> |
includes | #include <linux/rtnetlink.h> |
includes | #include <linux/random.h> |
includes |
#include <linux/uaccess.h> |
includes | #include <asm/unaligned.h> |
includes |
#include <linux/proc_fs.h> |
includes | #include <linux/seq_file.h> |
defines | #define ACONF_DEBUG 2 |
defines | #define ADBG(x) printk x |
defines | #define ADBG(x) |
defines |
#define INFINITY_LIFE_TIME 0xFFFFFFFF |
defines |
#define ADDRCONF_TIMER_FUZZ_MINUS (HZ > 50 ? HZ/50 : 1) |
defines | #define ADDRCONF_TIMER_FUZZ (HZ / 4) |
defines | #define ADDRCONF_TIMER_FUZZ_MAX (HZ) |
defines |
#define ADDRCONF_CTL_PATH_DEV 3 |
structs | struct ipv6_saddr_score {
int rule;
int addr_type;
struct inet6_ifaddr *ifa;
DECLARE_BITMAP(scorebits, IPV6_SADDR_RULE_MAX);
int scopedist;
int matchlen;
}; |
structs | struct ipv6_saddr_dst {
const struct in6_addr *addr;
int ifindex;
int scope;
int label;
unsigned int prefs;
}; |
structs | struct if6_iter_state {
struct seq_net_private p;
int bucket;
}; |
functions | u32 cstamp_delta(unsigned long cstamp)
{
return (cstamp - INITIAL_JIFFIES) * 100UL / HZ;
} |
functions | void addrconf_sysctl_register(struct inet6_dev *idev)
{
} |
functions | void addrconf_sysctl_unregister(struct inet6_dev *idev)
{
} |
functions | bool addrconf_qdisc_ok(const struct net_device *dev)
{
return !qdisc_tx_is_noop(dev);
} |
functions | int addrconf_is_prefix_route(const struct rt6_info *rt)
{
return (rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0;
} |
functions | void addrconf_del_timer(struct inet6_ifaddr *ifp)
{
if (del_timer(&ifp->timer))
__in6_ifa_put(ifp);
} |
functions | void addrconf_mod_timer(struct inet6_ifaddr *ifp,
enum addrconf_timer_t what,
unsigned long when)
{
if (!del_timer(&ifp->timer))
in6_ifa_hold(ifp);
switch (what) {
case AC_DAD:
ifp->timer.function = addrconf_dad_timer;
break;
case AC_RS:
ifp->timer.function = addrconf_rs_timer;
break;... |
functions | int snmp6_alloc_dev(struct inet6_dev *idev)
{
if (snmp_mib_init((void __percpu **)idev->stats.ipv6,
sizeof(struct ipstats_mib),
__alignof__(struct ipstats_mib)) < 0)
goto err_ip;
idev->stats.icmpv6dev = kzalloc(sizeof(struct icmpv6_mib_device),
GFP_KERNEL);
if (!idev->stats.icmpv6dev)
goto err_icm... |
functions | void snmp6_free_dev(struct inet6_dev *idev)
{
kfree(idev->stats.icmpv6msgdev);
kfree(idev->stats.icmpv6dev);
snmp_mib_free((void __percpu **)idev->stats.ipv6);
} |
functions | void in6_dev_finish_destroy(struct inet6_dev *idev)
{
struct net_device *dev = idev->dev;
WARN_ON(!list_empty(&idev->addr_list));
WARN_ON(idev->mc_list != NULL);
#ifdef NET_REFCNT_DEBUG
printk(KERN_DEBUG "in6_dev_finish_destroy: %s\n", dev ? dev->name : "NIL");
#endif
dev_put(dev);
if (!idev->dead) {
pr_warni... |
functions | void dev_forward_change(struct inet6_dev *idev)
{
struct net_device *dev;
struct inet6_ifaddr *ifa;
if (!idev)
return;
dev = idev->dev;
if (idev->cnf.forwarding)
dev_disable_lro(dev);
if (dev && (dev->flags & IFF_MULTICAST)) {
if (idev->cnf.forwarding)
ipv6_dev_mc_inc(dev, &in6addr_linklocal_allrouters)... |
functions | void addrconf_forward_change(struct net *net, __s32 newf)
{
struct net_device *dev;
struct inet6_dev *idev;
rcu_read_lock();
for_each_netdev_rcu(net, dev) {
idev = __in6_dev_get(dev);
if (idev) {
int changed = (!idev->cnf.forwarding) ^ (!newf);
idev->cnf.forwarding = newf;
if (changed)
dev_forward... |
functions | int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
{
struct net *net;
net = (struct net *)table->extra2;
if (p == &net->ipv6.devconf_dflt->forwarding)
return 0;
if (!rtnl_trylock()) {
/* Restore the original values before restarting */
*p = old;
return restart_syscall();
} |
functions | void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp)
{
WARN_ON(!hlist_unhashed(&ifp->addr_lst));
#ifdef NET_REFCNT_DEBUG
printk(KERN_DEBUG "inet6_ifa_finish_destroy\n");
#endif
in6_dev_put(ifp->idev);
if (del_timer(&ifp->timer))
pr_notice("Timer is still running, when freeing ifa=%p\n", ifp);
if (ifp->sta... |
functions | void
ipv6_link_dev_addr(struct inet6_dev *idev, struct inet6_ifaddr *ifp)
{
struct list_head *p;
int ifp_scope = ipv6_addr_src_scope(&ifp->addr);
/*
* Each device address list is sorted in order of scope -
* global before linklocal.
*/
list_for_each(p, &idev->addr_list) {
struct inet6_ifaddr *ifa
= list... |
functions | u32 ipv6_addr_hash(const struct in6_addr *addr)
{
/*
* We perform the hash function over the last 64 bits of the address
* This will include the IEEE address token on links that support it.
*/
return jhash_2words((__force u32)addr->s6_addr32[2],
(__force u32)addr->s6_addr32[3], 0)
& (IN6_ADDR_HSIZE - 1... |
functions | CONFIG_IPV6_PRIVACY
if (ifa->flags&IFA_F_TEMPORARY) {
list_add(&ifa->tmp_list, &idev->tempaddr_list);
in6_ifa_hold(ifa);
} |
functions | void ipv6_del_addr(struct inet6_ifaddr *ifp)
{
struct inet6_ifaddr *ifa, *ifn;
struct inet6_dev *idev = ifp->idev;
int state;
int deleted = 0, onlink = 0;
unsigned long expires = jiffies;
spin_lock_bh(&ifp->state_lock);
state = ifp->state;
ifp->state = INET6_IFADDR_STATE_DEAD;
spin_unlock_bh(&ifp->state_lock)... |
functions | endif
list_for_each_entry_safe(ifa, ifn, &idev->addr_list, if_list) {
if (ifa == ifp) {
list_del_init(&ifp->if_list);
__in6_ifa_put(ifp);
if (!(ifp->flags & IFA_F_PERMANENT) || onlink > 0)
break;
deleted = 1;
continue;
} |
functions | else if (ifp->flags & IFA_F_PERMANENT) {
if (ipv6_prefix_equal(&ifa->addr, &ifp->addr,
ifp->prefix_len)) {
if (ifa->flags & IFA_F_PERMANENT) {
onlink = 1;
if (deleted)
break;
} |
functions | int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *ift)
{
struct inet6_dev *idev = ifp->idev;
struct in6_addr addr, *tmpaddr;
unsigned long tmp_prefered_lft, tmp_valid_lft, tmp_tstamp, age;
unsigned long regen_advance;
int tmp_plen;
int ret = 0;
int max_addresses;
u32 addr_flags;
unsigned ... |
functions | int ipv6_saddr_preferred(int type)
{
if (type & (IPV6_ADDR_MAPPED|IPV6_ADDR_COMPATv4|IPV6_ADDR_LOOPBACK))
return 1;
return 0;
} |
functions | int ipv6_get_saddr_eval(struct net *net,
struct ipv6_saddr_score *score,
struct ipv6_saddr_dst *dst,
int i)
{
int ret;
if (i <= score->rule) {
switch (i) {
case IPV6_SADDR_RULE_SCOPE:
ret = score->scopedist;
break;
case IPV6_SADDR_RULE_PREFIX:
ret = score->matchlen;
br... |
functions | int ipv6_dev_get_saddr(struct net *net, struct net_device *dst_dev,
const struct in6_addr *daddr, unsigned int prefs,
struct in6_addr *saddr)
{
struct ipv6_saddr_score scores[2],
*score = &scores[0], *hiscore = &scores[1];
struct ipv6_saddr_dst dst;
struct net_device *dev;
int dst_type;
dst_... |
functions | else if (minihiscore < miniscore) {
if (hiscore->ifa)
in6_ifa_put(hiscore->ifa);
in6_ifa_hold(score->ifa);
swap(hiscore, score);
/* restore our iterator */
score->ifa = hiscore->ifa;
break;
} |
functions | int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr,
unsigned char banned_flags)
{
struct inet6_dev *idev;
int err = -EADDRNOTAVAIL;
rcu_read_lock();
idev = __in6_dev_get(dev);
if (idev) {
struct inet6_ifaddr *ifp;
read_lock_bh(&idev->lock);
list_for_each_entry(ifp, &idev->addr_list, if... |
functions | int ipv6_count_addresses(struct inet6_dev *idev)
{
int cnt = 0;
struct inet6_ifaddr *ifp;
read_lock_bh(&idev->lock);
list_for_each_entry(ifp, &idev->addr_list, if_list)
cnt++;
read_unlock_bh(&idev->lock);
return cnt;
} |
functions | int ipv6_chk_addr(struct net *net, const struct in6_addr *addr,
struct net_device *dev, int strict)
{
struct inet6_ifaddr *ifp;
struct hlist_node *node;
unsigned int hash = ipv6_addr_hash(addr);
rcu_read_lock_bh();
hlist_for_each_entry_rcu(ifp, node, &inet6_addr_lst[hash], addr_lst) {
if (!net_eq(dev_net(if... |
functions | bool ipv6_chk_same_addr(struct net *net, const struct in6_addr *addr,
struct net_device *dev)
{
unsigned int hash = ipv6_addr_hash(addr);
struct inet6_ifaddr *ifp;
struct hlist_node *node;
hlist_for_each_entry(ifp, node, &inet6_addr_lst[hash], addr_lst) {
if (!net_eq(dev_net(ifp->idev->dev), net))
c... |
functions | int ipv6_chk_prefix(const struct in6_addr *addr, struct net_device *dev)
{
struct inet6_dev *idev;
struct inet6_ifaddr *ifa;
int onlink;
onlink = 0;
rcu_read_lock();
idev = __in6_dev_get(dev);
if (idev) {
read_lock_bh(&idev->lock);
list_for_each_entry(ifa, &idev->addr_list, if_list) {
onlink = ipv6_prefi... |
functions | void addrconf_dad_stop(struct inet6_ifaddr *ifp, int dad_failed)
{
if (ifp->flags&IFA_F_PERMANENT) {
spin_lock_bh(&ifp->lock);
addrconf_del_timer(ifp);
ifp->flags |= IFA_F_TENTATIVE;
if (dad_failed)
ifp->flags |= IFA_F_DADFAILED;
spin_unlock_bh(&ifp->lock);
if (dad_failed)
ipv6_ifa_notify(0, ifp);
... |
functions | else if (ifp->flags&IFA_F_TEMPORARY) {
struct inet6_ifaddr *ifpub;
spin_lock_bh(&ifp->lock);
ifpub = ifp->ifpub;
if (ifpub) {
in6_ifa_hold(ifpub);
spin_unlock_bh(&ifp->lock);
ipv6_create_tempaddr(ifpub, ifp);
in6_ifa_put(ifpub);
} |
functions | int addrconf_dad_end(struct inet6_ifaddr *ifp)
{
int err = -ENOENT;
spin_lock(&ifp->state_lock);
if (ifp->state == INET6_IFADDR_STATE_DAD) {
ifp->state = INET6_IFADDR_STATE_POSTDAD;
err = 0;
} |
functions | void addrconf_dad_failure(struct inet6_ifaddr *ifp)
{
struct inet6_dev *idev = ifp->idev;
if (addrconf_dad_end(ifp)) {
in6_ifa_put(ifp);
return;
} |
functions | void addrconf_join_solict(struct net_device *dev, const struct in6_addr *addr)
{
struct in6_addr maddr;
if (dev->flags&(IFF_LOOPBACK|IFF_NOARP))
return;
addrconf_addr_solict_mult(addr, &maddr);
ipv6_dev_mc_inc(dev, &maddr);
} |
functions | void addrconf_leave_solict(struct inet6_dev *idev, const struct in6_addr *addr)
{
struct in6_addr maddr;
if (idev->dev->flags&(IFF_LOOPBACK|IFF_NOARP))
return;
addrconf_addr_solict_mult(addr, &maddr);
__ipv6_dev_mc_dec(idev, &maddr);
} |
functions | void addrconf_join_anycast(struct inet6_ifaddr *ifp)
{
struct in6_addr addr;
ipv6_addr_prefix(&addr, &ifp->addr, ifp->prefix_len);
if (ipv6_addr_any(&addr))
return;
ipv6_dev_ac_inc(ifp->idev->dev, &addr);
} |
functions | void addrconf_leave_anycast(struct inet6_ifaddr *ifp)
{
struct in6_addr addr;
ipv6_addr_prefix(&addr, &ifp->addr, ifp->prefix_len);
if (ipv6_addr_any(&addr))
return;
__ipv6_dev_ac_dec(ifp->idev, &addr);
} |
functions | int addrconf_ifid_eui48(u8 *eui, struct net_device *dev)
{
if (dev->addr_len != ETH_ALEN)
return -1;
memcpy(eui, dev->dev_addr, 3);
memcpy(eui + 5, dev->dev_addr + 3, 3);
/*
* The zSeries OSA network cards can be shared among various
* OS instances, but the OSA cards have only one MAC address.
* This leads... |
functions | int addrconf_ifid_arcnet(u8 *eui, struct net_device *dev)
{
/* XXX: inherit EUI-64 from other interface -- yoshfuji */
if (dev->addr_len != ARCNET_ALEN)
return -1;
memset(eui, 0, 7);
eui[7] = *(u8*)dev->dev_addr;
return 0;
} |
functions | int addrconf_ifid_infiniband(u8 *eui, struct net_device *dev)
{
if (dev->addr_len != INFINIBAND_ALEN)
return -1;
memcpy(eui, dev->dev_addr + 12, 8);
eui[0] |= 2;
return 0;
} |
functions | int __ipv6_isatap_ifid(u8 *eui, __be32 addr)
{
if (addr == 0)
return -1;
eui[0] = (ipv4_is_zeronet(addr) || ipv4_is_private_10(addr) ||
ipv4_is_loopback(addr) || ipv4_is_linklocal_169(addr) ||
ipv4_is_private_172(addr) || ipv4_is_test_192(addr) ||
ipv4_is_anycast_6to4(addr) || ipv4_is_private_192(addr) ... |
functions | int addrconf_ifid_sit(u8 *eui, struct net_device *dev)
{
if (dev->priv_flags & IFF_ISATAP)
return __ipv6_isatap_ifid(eui, *(__be32 *)dev->dev_addr);
return -1;
} |
functions | int ipv6_generate_eui64(u8 *eui, struct net_device *dev)
{
switch (dev->type) {
case ARPHRD_ETHER:
case ARPHRD_FDDI:
case ARPHRD_IEEE802_TR:
return addrconf_ifid_eui48(eui, dev);
case ARPHRD_ARCNET:
return addrconf_ifid_arcnet(eui, dev);
case ARPHRD_INFINIBAND:
return addrconf_ifid_infiniband(eui, dev);
ca... |
functions | int ipv6_inherit_eui64(u8 *eui, struct inet6_dev *idev)
{
int err = -1;
struct inet6_ifaddr *ifp;
read_lock_bh(&idev->lock);
list_for_each_entry(ifp, &idev->addr_list, if_list) {
if (ifp->scope == IFA_LINK && !(ifp->flags&IFA_F_TENTATIVE)) {
memcpy(eui, ifp->addr.s6_addr+8, 8);
err = 0;
break;
} |
functions | int __ipv6_regen_rndid(struct inet6_dev *idev)
{
regen:
get_random_bytes(idev->rndid, sizeof(idev->rndid));
idev->rndid[0] &= ~0x02;
/*
* <draft-ietf-ipngwg-temp-addresses-v2-00.txt>:
* check if generated address is not inappropriate
*
* - Reserved subnet anycast (RFC 2526)
* 11111101 11....11 1xxxxxxx
... |
functions | void ipv6_regen_rndid(unsigned long data)
{
struct inet6_dev *idev = (struct inet6_dev *) data;
unsigned long expires;
rcu_read_lock_bh();
write_lock_bh(&idev->lock);
if (idev->dead)
goto out;
if (__ipv6_regen_rndid(idev) < 0)
goto out;
expires = jiffies +
idev->cnf.temp_prefered_lft * HZ -
idev->cnf... |
functions | int __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmpaddr) {
int ret = 0;
if (tmpaddr && memcmp(idev->rndid, &tmpaddr->s6_addr[8], 8) == 0)
ret = __ipv6_regen_rndid(idev);
return ret;
} |
functions | void addrconf_router_lifetime(int r_lifetime, struct inet6_ifaddr *ifp)
{
unsigned long rt_period;
unsigned long valid_lft;
unsigned long prefered_lft;
if (HZ > USER_HZ) {
valid_lft = addrconf_timeout_fixup(ifp->valid_lft, HZ);
prefered_lft = addrconf_timeout_fixup(ifp->prefered_lft, HZ);
} |
functions | void addrconf_rs_prd_timer(unsigned long data)
{
struct inet6_ifaddr *ifp = (struct inet6_ifaddr *) data;
struct inet6_dev *idev = ifp->idev;
read_lock(&idev->lock);
if (idev->dead || !(idev->if_flags & IF_READY))
goto out;
if (idev->cnf.forwarding)
goto out;
printk(KERN_DEBUG "%s: sending RS with interval... |
functions | void
addrconf_prefix_route(struct in6_addr *pfx, int plen, struct net_device *dev,
unsigned long expires, u32 flags)
{
struct fib6_config cfg = {
.fc_table = RT6_TABLE_PREFIX,
.fc_metric = IP6_RT_PRIO_ADDRCONF,
.fc_ifindex = dev->ifindex,
.fc_expires = expires,
.fc_dst_len = plen,
.fc_flags = RTF_U... |
functions | void addrconf_add_mroute(struct net_device *dev)
{
struct fib6_config cfg = {
.fc_table = RT6_TABLE_LOCAL,
.fc_metric = IP6_RT_PRIO_ADDRCONF,
.fc_ifindex = dev->ifindex,
.fc_dst_len = 8,
.fc_flags = RTF_UP,
.fc_nlinfo.nl_net = dev_net(dev),
} |
functions | void sit_route_add(struct net_device *dev)
{
struct fib6_config cfg = {
.fc_table = RT6_TABLE_MAIN,
.fc_metric = IP6_RT_PRIO_ADDRCONF,
.fc_ifindex = dev->ifindex,
.fc_dst_len = 96,
.fc_flags = RTF_UP | RTF_NONEXTHOP,
.fc_nlinfo.nl_net = dev_net(dev),
} |
functions | void addrconf_add_lroute(struct net_device *dev)
{
struct in6_addr addr;
ipv6_addr_set(&addr, htonl(0xFE800000), 0, 0, 0);
addrconf_prefix_route(&addr, 64, dev, 0, 0);
} |
functions | else if (valid_lft) {
clock_t expires = 0;
int flags = RTF_ADDRCONF | RTF_PREFIX_RT;
if (addrconf_finite_timeout(rt_expires)) {
/* not infinity */
flags |= RTF_EXPIRES;
expires = jiffies_to_clock_t(rt_expires);
} |
functions | else if (stored_lft <= MIN_VALID_LIFETIME) {
/* valid_lft <= stored_lft is always true */
/*
* RFC 4862 Section 5.5.3e:
* "Note that the preferred lifetime of
* the corresponding address is always
* reset to the Preferred Lifetime in
* the received Prefix Information
* ... |
functions | int addrconf_set_dstaddr(struct net *net, void __user *arg)
{
struct in6_ifreq ireq;
struct net_device *dev;
int err = -EINVAL;
rtnl_lock();
err = -EFAULT;
if (copy_from_user(&ireq, arg, sizeof(struct in6_ifreq)))
goto err_exit;
dev = __dev_get_by_index(net, ireq.ifr6_ifindex);
err = -ENODEV;
if (dev == ... |
functions | int inet6_addr_add(struct net *net, int ifindex, const struct in6_addr *pfx,
unsigned int plen, __u8 ifa_flags, __u32 prefered_lft,
__u32 valid_lft)
{
struct inet6_ifaddr *ifp;
struct inet6_dev *idev;
struct net_device *dev;
int scope;
u32 flags;
clock_t expires;
unsigned long timeout;
ASSERT_RTNL();... |
functions | int inet6_addr_del(struct net *net, int ifindex, const struct in6_addr *pfx,
unsigned int plen)
{
struct inet6_ifaddr *ifp;
struct inet6_dev *idev;
struct net_device *dev;
if (plen > 128)
return -EINVAL;
dev = __dev_get_by_index(net, ifindex);
if (!dev)
return -ENODEV;
if ((idev = __in6_dev_get(dev))... |
functions | int addrconf_add_ifaddr(struct net *net, void __user *arg)
{
struct in6_ifreq ireq;
int err;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (copy_from_user(&ireq, arg, sizeof(struct in6_ifreq)))
return -EFAULT;
rtnl_lock();
err = inet6_addr_add(net, ireq.ifr6_ifindex, &ireq.ifr6_addr,
ireq.ifr6_pre... |
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