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authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-01 14:08:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-01 14:08:52 -0700
commit73287a43cc79ca06629a88d1a199cd283f42456a (patch)
treeacf4456e260115bea77ee31a29f10ce17f0db45c /net/netfilter/ipset/ip_set_bitmap_ipmac.c
parent251df49db3327c64bf917bfdba94491fde2b4ee0 (diff)
parent20074f357da4a637430aec2879c9d864c5d2c23c (diff)
downloadlinux-73287a43cc79ca06629a88d1a199cd283f42456a.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: "Highlights (1721 non-merge commits, this has to be a record of some sort): 1) Add 'random' mode to team driver, from Jiri Pirko and Eric Dumazet. 2) Make it so that any driver that supports configuration of multiple MAC addresses can provide the forwarding database add and del calls by providing a default implementation and hooking that up if the driver doesn't have an explicit set of handlers. From Vlad Yasevich. 3) Support GSO segmentation over tunnels and other encapsulating devices such as VXLAN, from Pravin B Shelar. 4) Support L2 GRE tunnels in the flow dissector, from Michael Dalton. 5) Implement Tail Loss Probe (TLP) detection in TCP, from Nandita Dukkipati. 6) In the PHY layer, allow supporting wake-on-lan in situations where the PHY registers have to be written for it to be configured. Use it to support wake-on-lan in mv643xx_eth. From Michael Stapelberg. 7) Significantly improve firewire IPV6 support, from YOSHIFUJI Hideaki. 8) Allow multiple packets to be sent in a single transmission using network coding in batman-adv, from Martin Hundebøll. 9) Add support for T5 cxgb4 chips, from Santosh Rastapur. 10) Generalize the VXLAN forwarding tables so that there is more flexibility in configurating various aspects of the endpoints. From David Stevens. 11) Support RSS and TSO in hardware over GRE tunnels in bxn2x driver, from Dmitry Kravkov. 12) Zero copy support in nfnelink_queue, from Eric Dumazet and Pablo Neira Ayuso. 13) Start adding networking selftests. 14) In situations of overload on the same AF_PACKET fanout socket, or per-cpu packet receive queue, minimize drop by distributing the load to other cpus/fanouts. From Willem de Bruijn and Eric Dumazet. 15) Add support for new payload offset BPF instruction, from Daniel Borkmann. 16) Convert several drivers over to mdoule_platform_driver(), from Sachin Kamat. 17) Provide a minimal BPF JIT image disassembler userspace tool, from Daniel Borkmann. 18) Rewrite F-RTO implementation in TCP to match the final specification of it in RFC4138 and RFC5682. From Yuchung Cheng. 19) Provide netlink socket diag of netlink sockets ("Yo dawg, I hear you like netlink, so I implemented netlink dumping of netlink sockets.") From Andrey Vagin. 20) Remove ugly passing of rtnetlink attributes into rtnl_doit functions, from Thomas Graf. 21) Allow userspace to be able to see if a configuration change occurs in the middle of an address or device list dump, from Nicolas Dichtel. 22) Support RFC3168 ECN protection for ipv6 fragments, from Hannes Frederic Sowa. 23) Increase accuracy of packet length used by packet scheduler, from Jason Wang. 24) Beginning set of changes to make ipv4/ipv6 fragment handling more scalable and less susceptible to overload and locking contention, from Jesper Dangaard Brouer. 25) Get rid of using non-type-safe NLMSG_* macros and use nlmsg_*() instead. From Hong Zhiguo. 26) Optimize route usage in IPVS by avoiding reference counting where possible, from Julian Anastasov. 27) Convert IPVS schedulers to RCU, also from Julian Anastasov. 28) Support cpu fanouts in xt_NFQUEUE netfilter target, from Holger Eitzenberger. 29) Network namespace support for nf_log, ebt_log, xt_LOG, ipt_ULOG, nfnetlink_log, and nfnetlink_queue. From Gao feng. 30) Implement RFC3168 ECN protection, from Hannes Frederic Sowa. 31) Support several new r8169 chips, from Hayes Wang. 32) Support tokenized interface identifiers in ipv6, from Daniel Borkmann. 33) Use usbnet_link_change() helper in USB net driver, from Ming Lei. 34) Add 802.1ad vlan offload support, from Patrick McHardy. 35) Support mmap() based netlink communication, also from Patrick McHardy. 36) Support HW timestamping in mlx4 driver, from Amir Vadai. 37) Rationalize AF_PACKET packet timestamping when transmitting, from Willem de Bruijn and Daniel Borkmann. 38) Bring parity to what's provided by /proc/net/packet socket dumping and the info provided by netlink socket dumping of AF_PACKET sockets. From Nicolas Dichtel. 39) Fix peeking beyond zero sized SKBs in AF_UNIX, from Benjamin Poirier" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits) filter: fix va_list build error af_unix: fix a fatal race with bit fields bnx2x: Prevent memory leak when cnic is absent bnx2x: correct reading of speed capabilities net: sctp: attribute printl with __printf for gcc fmt checks netlink: kconfig: move mmap i/o into netlink kconfig netpoll: convert mutex into a semaphore netlink: Fix skb ref counting. net_sched: act_ipt forward compat with xtables mlx4_en: fix a build error on 32bit arches Revert "bnx2x: allow nvram test to run when device is down" bridge: avoid OOPS if root port not found drivers: net: cpsw: fix kernel warn on cpsw irq enable sh_eth: use random MAC address if no valid one supplied 3c509.c: call SET_NETDEV_DEV for all device types (ISA/ISAPnP/EISA) tg3: fix to append hardware time stamping flags unix/stream: fix peeking with an offset larger than data in queue unix/dgram: fix peeking with an offset larger than data in queue unix/dgram: peek beyond 0-sized skbs openvswitch: Remove unneeded ovs_netdev_get_ifindex() ...
Diffstat (limited to 'net/netfilter/ipset/ip_set_bitmap_ipmac.c')
-rw-r--r--net/netfilter/ipset/ip_set_bitmap_ipmac.c624
1 files changed, 225 insertions, 399 deletions
diff --git a/net/netfilter/ipset/ip_set_bitmap_ipmac.c b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
index d7df6ac2c6f1..3b30e0bef890 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ipmac.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
@@ -1,7 +1,7 @@
/* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
* Patrick Schaaf <bof@bof.de>
* Martin Josefsson <gandalf@wlug.westbo.se>
- * Copyright (C) 2003-2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
+ * Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -23,344 +23,208 @@
#include <linux/netfilter/ipset/pfxlen.h>
#include <linux/netfilter/ipset/ip_set.h>
-#include <linux/netfilter/ipset/ip_set_timeout.h>
#include <linux/netfilter/ipset/ip_set_bitmap.h>
#define REVISION_MIN 0
-#define REVISION_MAX 0
+#define REVISION_MAX 1 /* Counter support added */
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
IP_SET_MODULE_DESC("bitmap:ip,mac", REVISION_MIN, REVISION_MAX);
MODULE_ALIAS("ip_set_bitmap:ip,mac");
+#define MTYPE bitmap_ipmac
+#define IP_SET_BITMAP_STORED_TIMEOUT
+
enum {
- MAC_EMPTY, /* element is not set */
- MAC_FILLED, /* element is set with MAC */
MAC_UNSET, /* element is set, without MAC */
+ MAC_FILLED, /* element is set with MAC */
};
/* Type structure */
struct bitmap_ipmac {
void *members; /* the set members */
+ void *extensions; /* MAC + data extensions */
u32 first_ip; /* host byte order, included in range */
u32 last_ip; /* host byte order, included in range */
+ u32 elements; /* number of max elements in the set */
u32 timeout; /* timeout value */
struct timer_list gc; /* garbage collector */
+ size_t memsize; /* members size */
size_t dsize; /* size of element */
+ size_t offset[IPSET_OFFSET_MAX]; /* Offsets to extensions */
};
/* ADT structure for generic function args */
-struct ipmac {
- u32 id; /* id in array */
- unsigned char *ether; /* ethernet address */
+struct bitmap_ipmac_adt_elem {
+ u16 id;
+ unsigned char *ether;
};
-/* Member element without and with timeout */
-
-struct ipmac_elem {
+struct bitmap_ipmac_elem {
unsigned char ether[ETH_ALEN];
- unsigned char match;
+ unsigned char filled;
} __attribute__ ((aligned));
-struct ipmac_telem {
- unsigned char ether[ETH_ALEN];
- unsigned char match;
- unsigned long timeout;
-} __attribute__ ((aligned));
-
-static inline void *
-bitmap_ipmac_elem(const struct bitmap_ipmac *map, u32 id)
+static inline u32
+ip_to_id(const struct bitmap_ipmac *m, u32 ip)
{
- return (void *)((char *)map->members + id * map->dsize);
+ return ip - m->first_ip;
}
-static inline bool
-bitmap_timeout(const struct bitmap_ipmac *map, u32 id)
+static inline struct bitmap_ipmac_elem *
+get_elem(void *extensions, u16 id, size_t dsize)
{
- const struct ipmac_telem *elem = bitmap_ipmac_elem(map, id);
-
- return ip_set_timeout_test(elem->timeout);
+ return (struct bitmap_ipmac_elem *)(extensions + id * dsize);
}
-static inline bool
-bitmap_expired(const struct bitmap_ipmac *map, u32 id)
-{
- const struct ipmac_telem *elem = bitmap_ipmac_elem(map, id);
-
- return ip_set_timeout_expired(elem->timeout);
-}
+/* Common functions */
static inline int
-bitmap_ipmac_exist(const struct ipmac_telem *elem)
-{
- return elem->match == MAC_UNSET ||
- (elem->match == MAC_FILLED &&
- !ip_set_timeout_expired(elem->timeout));
-}
-
-/* Base variant */
-
-static int
-bitmap_ipmac_test(struct ip_set *set, void *value, u32 timeout, u32 flags)
-{
- const struct bitmap_ipmac *map = set->data;
- const struct ipmac *data = value;
- const struct ipmac_elem *elem = bitmap_ipmac_elem(map, data->id);
-
- switch (elem->match) {
- case MAC_UNSET:
- /* Trigger kernel to fill out the ethernet address */
- return -EAGAIN;
- case MAC_FILLED:
- return data->ether == NULL ||
- ether_addr_equal(data->ether, elem->ether);
- }
- return 0;
-}
-
-static int
-bitmap_ipmac_add(struct ip_set *set, void *value, u32 timeout, u32 flags)
-{
- struct bitmap_ipmac *map = set->data;
- const struct ipmac *data = value;
- struct ipmac_elem *elem = bitmap_ipmac_elem(map, data->id);
-
- switch (elem->match) {
- case MAC_UNSET:
- if (!data->ether)
- /* Already added without ethernet address */
- return -IPSET_ERR_EXIST;
- /* Fill the MAC address */
- memcpy(elem->ether, data->ether, ETH_ALEN);
- elem->match = MAC_FILLED;
- break;
- case MAC_FILLED:
- return -IPSET_ERR_EXIST;
- case MAC_EMPTY:
- if (data->ether) {
- memcpy(elem->ether, data->ether, ETH_ALEN);
- elem->match = MAC_FILLED;
- } else
- elem->match = MAC_UNSET;
- }
-
- return 0;
-}
-
-static int
-bitmap_ipmac_del(struct ip_set *set, void *value, u32 timeout, u32 flags)
+bitmap_ipmac_do_test(const struct bitmap_ipmac_adt_elem *e,
+ const struct bitmap_ipmac *map)
{
- struct bitmap_ipmac *map = set->data;
- const struct ipmac *data = value;
- struct ipmac_elem *elem = bitmap_ipmac_elem(map, data->id);
-
- if (elem->match == MAC_EMPTY)
- return -IPSET_ERR_EXIST;
+ const struct bitmap_ipmac_elem *elem;
- elem->match = MAC_EMPTY;
-
- return 0;
+ if (!test_bit(e->id, map->members))
+ return 0;
+ elem = get_elem(map->extensions, e->id, map->dsize);
+ if (elem->filled == MAC_FILLED)
+ return e->ether == NULL ||
+ ether_addr_equal(e->ether, elem->ether);
+ /* Trigger kernel to fill out the ethernet address */
+ return -EAGAIN;
}
-static int
-bitmap_ipmac_list(const struct ip_set *set,
- struct sk_buff *skb, struct netlink_callback *cb)
+static inline int
+bitmap_ipmac_gc_test(u16 id, const struct bitmap_ipmac *map)
{
- const struct bitmap_ipmac *map = set->data;
- const struct ipmac_elem *elem;
- struct nlattr *atd, *nested;
- u32 id, first = cb->args[2];
- u32 last = map->last_ip - map->first_ip;
-
- atd = ipset_nest_start(skb, IPSET_ATTR_ADT);
- if (!atd)
- return -EMSGSIZE;
- for (; cb->args[2] <= last; cb->args[2]++) {
- id = cb->args[2];
- elem = bitmap_ipmac_elem(map, id);
- if (elem->match == MAC_EMPTY)
- continue;
- nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
- if (!nested) {
- if (id == first) {
- nla_nest_cancel(skb, atd);
- return -EMSGSIZE;
- } else
- goto nla_put_failure;
- }
- if (nla_put_ipaddr4(skb, IPSET_ATTR_IP,
- htonl(map->first_ip + id)) ||
- (elem->match == MAC_FILLED &&
- nla_put(skb, IPSET_ATTR_ETHER, ETH_ALEN,
- elem->ether)))
- goto nla_put_failure;
- ipset_nest_end(skb, nested);
- }
- ipset_nest_end(skb, atd);
- /* Set listing finished */
- cb->args[2] = 0;
-
- return 0;
+ const struct bitmap_ipmac_elem *elem;
-nla_put_failure:
- nla_nest_cancel(skb, nested);
- ipset_nest_end(skb, atd);
- if (unlikely(id == first)) {
- cb->args[2] = 0;
- return -EMSGSIZE;
- }
- return 0;
+ if (!test_bit(id, map->members))
+ return 0;
+ elem = get_elem(map->extensions, id, map->dsize);
+ /* Timer not started for the incomplete elements */
+ return elem->filled == MAC_FILLED;
}
-/* Timeout variant */
-
-static int
-bitmap_ipmac_ttest(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline int
+bitmap_ipmac_is_filled(const struct bitmap_ipmac_elem *elem)
{
- const struct bitmap_ipmac *map = set->data;
- const struct ipmac *data = value;
- const struct ipmac_elem *elem = bitmap_ipmac_elem(map, data->id);
-
- switch (elem->match) {
- case MAC_UNSET:
- /* Trigger kernel to fill out the ethernet address */
- return -EAGAIN;
- case MAC_FILLED:
- return (data->ether == NULL ||
- ether_addr_equal(data->ether, elem->ether)) &&
- !bitmap_expired(map, data->id);
- }
- return 0;
+ return elem->filled == MAC_FILLED;
}
-static int
-bitmap_ipmac_tadd(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline int
+bitmap_ipmac_add_timeout(unsigned long *timeout,
+ const struct bitmap_ipmac_adt_elem *e,
+ const struct ip_set_ext *ext,
+ struct bitmap_ipmac *map, int mode)
{
- struct bitmap_ipmac *map = set->data;
- const struct ipmac *data = value;
- struct ipmac_telem *elem = bitmap_ipmac_elem(map, data->id);
- bool flag_exist = flags & IPSET_FLAG_EXIST;
+ u32 t = ext->timeout;
- switch (elem->match) {
- case MAC_UNSET:
- if (!(data->ether || flag_exist))
- /* Already added without ethernet address */
- return -IPSET_ERR_EXIST;
- /* Fill the MAC address and activate the timer */
- memcpy(elem->ether, data->ether, ETH_ALEN);
- elem->match = MAC_FILLED;
- if (timeout == map->timeout)
+ if (mode == IPSET_ADD_START_STORED_TIMEOUT) {
+ if (t == map->timeout)
/* Timeout was not specified, get stored one */
- timeout = elem->timeout;
- elem->timeout = ip_set_timeout_set(timeout);
- break;
- case MAC_FILLED:
- if (!(bitmap_expired(map, data->id) || flag_exist))
- return -IPSET_ERR_EXIST;
- /* Fall through */
- case MAC_EMPTY:
- if (data->ether) {
- memcpy(elem->ether, data->ether, ETH_ALEN);
- elem->match = MAC_FILLED;
- } else
- elem->match = MAC_UNSET;
+ t = *timeout;
+ ip_set_timeout_set(timeout, t);
+ } else {
/* If MAC is unset yet, we store plain timeout value
* because the timer is not activated yet
* and we can reuse it later when MAC is filled out,
* possibly by the kernel */
- elem->timeout = data->ether ? ip_set_timeout_set(timeout)
- : timeout;
- break;
+ if (e->ether)
+ ip_set_timeout_set(timeout, t);
+ else
+ *timeout = t;
}
-
return 0;
}
-static int
-bitmap_ipmac_tdel(struct ip_set *set, void *value, u32 timeout, u32 flags)
+static inline int
+bitmap_ipmac_do_add(const struct bitmap_ipmac_adt_elem *e,
+ struct bitmap_ipmac *map, u32 flags)
{
- struct bitmap_ipmac *map = set->data;
- const struct ipmac *data = value;
- struct ipmac_telem *elem = bitmap_ipmac_elem(map, data->id);
+ struct bitmap_ipmac_elem *elem;
+
+ elem = get_elem(map->extensions, e->id, map->dsize);
+ if (test_and_set_bit(e->id, map->members)) {
+ if (elem->filled == MAC_FILLED) {
+ if (e->ether && (flags & IPSET_FLAG_EXIST))
+ memcpy(elem->ether, e->ether, ETH_ALEN);
+ return IPSET_ADD_FAILED;
+ } else if (!e->ether)
+ /* Already added without ethernet address */
+ return IPSET_ADD_FAILED;
+ /* Fill the MAC address and trigger the timer activation */
+ memcpy(elem->ether, e->ether, ETH_ALEN);
+ elem->filled = MAC_FILLED;
+ return IPSET_ADD_START_STORED_TIMEOUT;
+ } else if (e->ether) {
+ /* We can store MAC too */
+ memcpy(elem->ether, e->ether, ETH_ALEN);
+ elem->filled = MAC_FILLED;
+ return 0;
+ } else {
+ elem->filled = MAC_UNSET;
+ /* MAC is not stored yet, don't start timer */
+ return IPSET_ADD_STORE_PLAIN_TIMEOUT;
+ }
+}
- if (elem->match == MAC_EMPTY || bitmap_expired(map, data->id))
- return -IPSET_ERR_EXIST;
+static inline int
+bitmap_ipmac_do_del(const struct bitmap_ipmac_adt_elem *e,
+ struct bitmap_ipmac *map)
+{
+ return !test_and_clear_bit(e->id, map->members);
+}
- elem->match = MAC_EMPTY;
+static inline unsigned long
+ip_set_timeout_stored(struct bitmap_ipmac *map, u32 id, unsigned long *timeout)
+{
+ const struct bitmap_ipmac_elem *elem =
+ get_elem(map->extensions, id, map->dsize);
- return 0;
+ return elem->filled == MAC_FILLED ? ip_set_timeout_get(timeout) :
+ *timeout;
}
-static int
-bitmap_ipmac_tlist(const struct ip_set *set,
- struct sk_buff *skb, struct netlink_callback *cb)
+static inline int
+bitmap_ipmac_do_list(struct sk_buff *skb, const struct bitmap_ipmac *map,
+ u32 id)
{
- const struct bitmap_ipmac *map = set->data;
- const struct ipmac_telem *elem;
- struct nlattr *atd, *nested;
- u32 id, first = cb->args[2];
- u32 timeout, last = map->last_ip - map->first_ip;
-
- atd = ipset_nest_start(skb, IPSET_ATTR_ADT);
- if (!atd)
- return -EMSGSIZE;
- for (; cb->args[2] <= last; cb->args[2]++) {
- id = cb->args[2];
- elem = bitmap_ipmac_elem(map, id);
- if (!bitmap_ipmac_exist(elem))
- continue;
- nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
- if (!nested) {
- if (id == first) {
- nla_nest_cancel(skb, atd);
- return -EMSGSIZE;
- } else
- goto nla_put_failure;
- }
- if (nla_put_ipaddr4(skb, IPSET_ATTR_IP,
- htonl(map->first_ip + id)) ||
- (elem->match == MAC_FILLED &&
- nla_put(skb, IPSET_ATTR_ETHER, ETH_ALEN,
- elem->ether)))
- goto nla_put_failure;
- timeout = elem->match == MAC_UNSET ? elem->timeout
- : ip_set_timeout_get(elem->timeout);
- if (nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(timeout)))
- goto nla_put_failure;
- ipset_nest_end(skb, nested);
- }
- ipset_nest_end(skb, atd);
- /* Set listing finished */
- cb->args[2] = 0;
+ const struct bitmap_ipmac_elem *elem =
+ get_elem(map->extensions, id, map->dsize);
- return 0;
+ return nla_put_ipaddr4(skb, IPSET_ATTR_IP,
+ htonl(map->first_ip + id)) ||
+ (elem->filled == MAC_FILLED &&
+ nla_put(skb, IPSET_ATTR_ETHER, ETH_ALEN, elem->ether));
+}
-nla_put_failure:
- nla_nest_cancel(skb, nested);
- ipset_nest_end(skb, atd);
- if (unlikely(id == first)) {
- cb->args[2] = 0;
- return -EMSGSIZE;
- }
- return 0;
+static inline int
+bitmap_ipmac_do_head(struct sk_buff *skb, const struct bitmap_ipmac *map)
+{
+ return nla_put_ipaddr4(skb, IPSET_ATTR_IP, htonl(map->first_ip)) ||
+ nla_put_ipaddr4(skb, IPSET_ATTR_IP_TO, htonl(map->last_ip));
}
static int
bitmap_ipmac_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct xt_action_param *par,
- enum ipset_adt adt, const struct ip_set_adt_opt *opt)
+ enum ipset_adt adt, struct ip_set_adt_opt *opt)
{
struct bitmap_ipmac *map = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
- struct ipmac data;
+ struct bitmap_ipmac_adt_elem e = {};
+ struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, map);
+ u32 ip;
/* MAC can be src only */
if (!(opt->flags & IPSET_DIM_TWO_SRC))
return 0;
- data.id = ntohl(ip4addr(skb, opt->flags & IPSET_DIM_ONE_SRC));
- if (data.id < map->first_ip || data.id > map->last_ip)
+ ip = ntohl(ip4addr(skb, opt->flags & IPSET_DIM_ONE_SRC));
+ if (ip < map->first_ip || ip > map->last_ip)
return -IPSET_ERR_BITMAP_RANGE;
/* Backward compatibility: we don't check the second flag */
@@ -368,10 +232,10 @@ bitmap_ipmac_kadt(struct ip_set *set, const struct sk_buff *skb,
(skb_mac_header(skb) + ETH_HLEN) > skb->data)
return -EINVAL;
- data.id -= map->first_ip;
- data.ether = eth_hdr(skb)->h_source;
+ e.id = ip_to_id(map, ip);
+ e.ether = eth_hdr(skb)->h_source;
- return adtfn(set, &data, opt_timeout(opt, map), opt->cmdflags);
+ return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
}
static int
@@ -380,91 +244,39 @@ bitmap_ipmac_uadt(struct ip_set *set, struct nlattr *tb[],
{
const struct bitmap_ipmac *map = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
- struct ipmac data;
- u32 timeout = map->timeout;
+ struct bitmap_ipmac_adt_elem e = {};
+ struct ip_set_ext ext = IP_SET_INIT_UEXT(map);
+ u32 ip;
int ret = 0;
if (unlikely(!tb[IPSET_ATTR_IP] ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
+ !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
+ !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
+ !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
return -IPSET_ERR_PROTOCOL;
if (tb[IPSET_ATTR_LINENO])
*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
- ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &data.id);
+ ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
+ ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
- if (data.id < map->first_ip || data.id > map->last_ip)
+ if (ip < map->first_ip || ip > map->last_ip)
return -IPSET_ERR_BITMAP_RANGE;
+ e.id = ip_to_id(map, ip);
if (tb[IPSET_ATTR_ETHER])
- data.ether = nla_data(tb[IPSET_ATTR_ETHER]);
+ e.ether = nla_data(tb[IPSET_ATTR_ETHER]);
else
- data.ether = NULL;
-
- if (tb[IPSET_ATTR_TIMEOUT]) {
- if (!with_timeout(map->timeout))
- return -IPSET_ERR_TIMEOUT;
- timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
- }
-
- data.id -= map->first_ip;
+ e.ether = NULL;
- ret = adtfn(set, &data, timeout, flags);
+ ret = adtfn(set, &e, &ext, &ext, flags);
return ip_set_eexist(ret, flags) ? 0 : ret;
}
-static void
-bitmap_ipmac_destroy(struct ip_set *set)
-{
- struct bitmap_ipmac *map = set->data;
-
- if (with_timeout(map->timeout))
- del_timer_sync(&map->gc);
-
- ip_set_free(map->members);
- kfree(map);
-
- set->data = NULL;
-}
-
-static void
-bitmap_ipmac_flush(struct ip_set *set)
-{
- struct bitmap_ipmac *map = set->data;
-
- memset(map->members, 0,
- (map->last_ip - map->first_ip + 1) * map->dsize);
-}
-
-static int
-bitmap_ipmac_head(struct ip_set *set, struct sk_buff *skb)
-{
- const struct bitmap_ipmac *map = set->data;
- struct nlattr *nested;
-
- nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
- if (!nested)
- goto nla_put_failure;
- if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, htonl(map->first_ip)) ||
- nla_put_ipaddr4(skb, IPSET_ATTR_IP_TO, htonl(map->last_ip)) ||
- nla_put_net32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1)) ||
- nla_put_net32(skb, IPSET_ATTR_MEMSIZE,
- htonl(sizeof(*map) +
- ((map->last_ip - map->first_ip + 1) *
- map->dsize))) ||
- (with_timeout(map->timeout) &&
- nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(map->timeout))))
- goto nla_put_failure;
- ipset_nest_end(skb, nested);
-
- return 0;
-nla_put_failure:
- return -EMSGSIZE;
-}
-
static bool
bitmap_ipmac_same_set(const struct ip_set *a, const struct ip_set *b)
{
@@ -473,85 +285,64 @@ bitmap_ipmac_same_set(const struct ip_set *a, const struct ip_set *b)
return x->first_ip == y->first_ip &&
x->last_ip == y->last_ip &&
- x->timeout == y->timeout;
+ x->timeout == y->timeout &&
+ a->extensions == b->extensions;
}
-static const struct ip_set_type_variant bitmap_ipmac = {
- .kadt = bitmap_ipmac_kadt,
- .uadt = bitmap_ipmac_uadt,
- .adt = {
- [IPSET_ADD] = bitmap_ipmac_add,
- [IPSET_DEL] = bitmap_ipmac_del,
- [IPSET_TEST] = bitmap_ipmac_test,
- },
- .destroy = bitmap_ipmac_destroy,
- .flush = bitmap_ipmac_flush,
- .head = bitmap_ipmac_head,
- .list = bitmap_ipmac_list,
- .same_set = bitmap_ipmac_same_set,
-};
+/* Plain variant */
-static const struct ip_set_type_variant bitmap_tipmac = {
- .kadt = bitmap_ipmac_kadt,
- .uadt = bitmap_ipmac_uadt,
- .adt = {
- [IPSET_ADD] = bitmap_ipmac_tadd,
- [IPSET_DEL] = bitmap_ipmac_tdel,
- [IPSET_TEST] = bitmap_ipmac_ttest,
- },
- .destroy = bitmap_ipmac_destroy,
- .flush = bitmap_ipmac_flush,
- .head = bitmap_ipmac_head,
- .list = bitmap_ipmac_tlist,
- .same_set = bitmap_ipmac_same_set,
+/* Timeout variant */
+
+struct bitmap_ipmact_elem {
+ struct {
+ unsigned char ether[ETH_ALEN];
+ unsigned char filled;
+ } __attribute__ ((aligned));
+ unsigned long timeout;
};
-static void
-bitmap_ipmac_gc(unsigned long ul_set)
-{
- struct ip_set *set = (struct ip_set *) ul_set;
- struct bitmap_ipmac *map = set->data;
- struct ipmac_telem *elem;
- u32 id, last = map->last_ip - map->first_ip;
-
- /* We run parallel with other readers (test element)
- * but adding/deleting new entries is locked out */
- read_lock_bh(&set->lock);
- for (id = 0; id <= last; id++) {
- elem = bitmap_ipmac_elem(map, id);
- if (elem->match == MAC_FILLED &&
- ip_set_timeout_expired(elem->timeout))
- elem->match = MAC_EMPTY;
- }
- read_unlock_bh(&set->lock);
+/* Plain variant with counter */
- map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
- add_timer(&map->gc);
-}
+struct bitmap_ipmacc_elem {
+ struct {
+ unsigned char ether[ETH_ALEN];
+ unsigned char filled;
+ } __attribute__ ((aligned));
+ struct ip_set_counter counter;
+};
-static void
-bitmap_ipmac_gc_init(struct ip_set *set)
-{
- struct bitmap_ipmac *map = set->data;
+/* Timeout variant with counter */
- init_timer(&map->gc);
- map->gc.data = (unsigned long) set;
- map->gc.function = bitmap_ipmac_gc;
- map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
- add_timer(&map->gc);
-}
+struct bitmap_ipmacct_elem {
+ struct {
+ unsigned char ether[ETH_ALEN];
+ unsigned char filled;
+ } __attribute__ ((aligned));
+ unsigned long timeout;
+ struct ip_set_counter counter;
+};
+
+#include "ip_set_bitmap_gen.h"
/* Create bitmap:ip,mac type of sets */
static bool
init_map_ipmac(struct ip_set *set, struct bitmap_ipmac *map,
- u32 first_ip, u32 last_ip)
+ u32 first_ip, u32 last_ip, u32 elements)
{
map->members = ip_set_alloc((last_ip - first_ip + 1) * map->dsize);
if (!map->members)
return false;
+ if (map->dsize) {
+ map->extensions = ip_set_alloc(map->dsize * elements);
+ if (!map->extensions) {
+ kfree(map->members);
+ return false;
+ }
+ }
map->first_ip = first_ip;
map->last_ip = last_ip;
+ map->elements = elements;
map->timeout = IPSET_NO_TIMEOUT;
set->data = map;
@@ -564,13 +355,14 @@ static int
bitmap_ipmac_create(struct ip_set *set, struct nlattr *tb[],
u32 flags)
{
- u32 first_ip, last_ip;
+ u32 first_ip, last_ip, cadt_flags = 0;
u64 elements;
struct bitmap_ipmac *map;
int ret;
if (unlikely(!tb[IPSET_ATTR_IP] ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
+ !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
+ !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
return -IPSET_ERR_PROTOCOL;
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &first_ip);
@@ -605,28 +397,59 @@ bitmap_ipmac_create(struct ip_set *set, struct nlattr *tb[],
if (!map)
return -ENOMEM;
- if (tb[IPSET_ATTR_TIMEOUT]) {
- map->dsize = sizeof(struct ipmac_telem);
+ map->memsize = bitmap_bytes(0, elements - 1);
+ set->variant = &bitmap_ipmac;
+ if (tb[IPSET_ATTR_CADT_FLAGS])
+ cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
+ if (cadt_flags & IPSET_FLAG_WITH_COUNTERS) {
+ set->extensions |= IPSET_EXT_COUNTER;
+ if (tb[IPSET_ATTR_TIMEOUT]) {
+ map->dsize = sizeof(struct bitmap_ipmacct_elem);
+ map->offset[IPSET_OFFSET_TIMEOUT] =
+ offsetof(struct bitmap_ipmacct_elem, timeout);
+ map->offset[IPSET_OFFSET_COUNTER] =
+ offsetof(struct bitmap_ipmacct_elem, counter);
+
+ if (!init_map_ipmac(set, map, first_ip, last_ip,
+ elements)) {
+ kfree(map);
+ return -ENOMEM;
+ }
+ map->timeout = ip_set_timeout_uget(
+ tb[IPSET_ATTR_TIMEOUT]);
+ set->extensions |= IPSET_EXT_TIMEOUT;
+ bitmap_ipmac_gc_init(set, bitmap_ipmac_gc);
+ } else {
+ map->dsize = sizeof(struct bitmap_ipmacc_elem);
+ map->offset[IPSET_OFFSET_COUNTER] =
+ offsetof(struct bitmap_ipmacc_elem, counter);
+
+ if (!init_map_ipmac(set, map, first_ip, last_ip,
+ elements)) {
+ kfree(map);
+ return -ENOMEM;
+ }
+ }
+ } else if (tb[IPSET_ATTR_TIMEOUT]) {
+ map->dsize = sizeof(struct bitmap_ipmact_elem);
+ map->offset[IPSET_OFFSET_TIMEOUT] =
+ offsetof(struct bitmap_ipmact_elem, timeout);
- if (!init_map_ipmac(set, map, first_ip, last_ip)) {
+ if (!init_map_ipmac(set, map, first_ip, last_ip, elements)) {
kfree(map);
return -ENOMEM;
}
-
map->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
-
- set->variant = &bitmap_tipmac;
-
- bitmap_ipmac_gc_init(set);
+ set->extensions |= IPSET_EXT_TIMEOUT;
+ bitmap_ipmac_gc_init(set, bitmap_ipmac_gc);
} else {
- map->dsize = sizeof(struct ipmac_elem);
+ map->dsize = sizeof(struct bitmap_ipmac_elem);
- if (!init_map_ipmac(set, map, first_ip, last_ip)) {
+ if (!init_map_ipmac(set, map, first_ip, last_ip, elements)) {
kfree(map);
return -ENOMEM;
}
set->variant = &bitmap_ipmac;
-
}
return 0;
}
@@ -645,6 +468,7 @@ static struct ip_set_type bitmap_ipmac_type = {
[IPSET_ATTR_IP_TO] = { .type = NLA_NESTED },
[IPSET_ATTR_CIDR] = { .type = NLA_U8 },
[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
+ [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
},
.adt_policy = {
[IPSET_ATTR_IP] = { .type = NLA_NESTED },
@@ -652,6 +476,8 @@ static struct ip_set_type bitmap_ipmac_type = {
.len = ETH_ALEN },
[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
[IPSET_ATTR_LINENO] = { .type = NLA_U32 },
+ [IPSET_ATTR_BYTES] = { .type = NLA_U64 },
+ [IPSET_ATTR_PACKETS] = { .type = NLA_U64 },
},
.me = THIS_MODULE,
};