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path: root/net/netfilter/ipset/ip_set_hash_net.c
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Diffstat (limited to 'net/netfilter/ipset/ip_set_hash_net.c')
-rw-r--r--net/netfilter/ipset/ip_set_hash_net.c73
1 files changed, 34 insertions, 39 deletions
diff --git a/net/netfilter/ipset/ip_set_hash_net.c b/net/netfilter/ipset/ip_set_hash_net.c
index 6b3ac10ac2f1..3e4bffdc1cc0 100644
--- a/net/netfilter/ipset/ip_set_hash_net.c
+++ b/net/netfilter/ipset/ip_set_hash_net.c
@@ -95,10 +95,10 @@ hash_net4_data_list(struct sk_buff *skb, const struct hash_net4_elem *data)
(flags &&
nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
goto nla_put_failure;
- return 0;
+ return false;
nla_put_failure:
- return 1;
+ return true;
}
static inline void
@@ -109,7 +109,6 @@ hash_net4_data_next(struct hash_net4_elem *next,
}
#define MTYPE hash_net4
-#define PF 4
#define HOST_MASK 32
#include "ip_set_hash_gen.h"
@@ -121,7 +120,7 @@ hash_net4_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct hash_net *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_net4_elem e = {
- .cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
+ .cidr = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
};
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
@@ -147,21 +146,18 @@ hash_net4_uadt(struct ip_set *set, struct nlattr *tb[],
u32 ip = 0, ip_to = 0, last;
int ret;
+ if (tb[IPSET_ATTR_LINENO])
+ *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
+
if (unlikely(!tb[IPSET_ATTR_IP] ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES) ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBMARK) ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBPRIO) ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBQUEUE)))
+ !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
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], &ip);
+ if (ret)
+ return ret;
- ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
- ip_set_get_extensions(set, tb, &ext);
+ ret = ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
@@ -173,6 +169,7 @@ hash_net4_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_CADT_FLAGS]) {
u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
+
if (cadt_flags & IPSET_FLAG_NOMATCH)
flags |= (IPSET_FLAG_NOMATCH << 16);
}
@@ -180,7 +177,7 @@ hash_net4_uadt(struct ip_set *set, struct nlattr *tb[],
if (adt == IPSET_TEST || !tb[IPSET_ATTR_IP_TO]) {
e.ip = htonl(ip & ip_set_hostmask(e.cidr));
ret = adtfn(set, &e, &ext, &ext, flags);
- return ip_set_enomatch(ret, flags, adt, set) ? -ret:
+ return ip_set_enomatch(ret, flags, adt, set) ? -ret :
ip_set_eexist(ret, flags) ? 0 : ret;
}
@@ -202,8 +199,8 @@ hash_net4_uadt(struct ip_set *set, struct nlattr *tb[],
ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;
- else
- ret = 0;
+
+ ret = 0;
ip = last + 1;
}
return ret;
@@ -264,10 +261,10 @@ hash_net6_data_list(struct sk_buff *skb, const struct hash_net6_elem *data)
(flags &&
nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
goto nla_put_failure;
- return 0;
+ return false;
nla_put_failure:
- return 1;
+ return true;
}
static inline void
@@ -277,11 +274,9 @@ hash_net6_data_next(struct hash_net4_elem *next,
}
#undef MTYPE
-#undef PF
#undef HOST_MASK
#define MTYPE hash_net6
-#define PF 6
#define HOST_MASK 128
#define IP_SET_EMIT_CREATE
#include "ip_set_hash_gen.h"
@@ -294,7 +289,7 @@ hash_net6_kadt(struct ip_set *set, const struct sk_buff *skb,
const struct hash_net *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_net6_elem e = {
- .cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
+ .cidr = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
};
struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
@@ -318,36 +313,34 @@ hash_net6_uadt(struct ip_set *set, struct nlattr *tb[],
struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
int ret;
+ if (tb[IPSET_ATTR_LINENO])
+ *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
+
if (unlikely(!tb[IPSET_ATTR_IP] ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES) ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBMARK) ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBPRIO) ||
- !ip_set_optattr_netorder(tb, IPSET_ATTR_SKBQUEUE)))
+ !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
return -IPSET_ERR_PROTOCOL;
if (unlikely(tb[IPSET_ATTR_IP_TO]))
return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
- if (tb[IPSET_ATTR_LINENO])
- *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
+ ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip);
+ if (ret)
+ return ret;
- ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip) ||
- ip_set_get_extensions(set, tb, &ext);
+ ret = ip_set_get_extensions(set, tb, &ext);
if (ret)
return ret;
- if (tb[IPSET_ATTR_CIDR])
+ if (tb[IPSET_ATTR_CIDR]) {
e.cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
-
- if (!e.cidr || e.cidr > HOST_MASK)
- return -IPSET_ERR_INVALID_CIDR;
+ if (!e.cidr || e.cidr > HOST_MASK)
+ return -IPSET_ERR_INVALID_CIDR;
+ }
ip6_netmask(&e.ip, e.cidr);
if (tb[IPSET_ATTR_CADT_FLAGS]) {
u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
+
if (cadt_flags & IPSET_FLAG_NOMATCH)
flags |= (IPSET_FLAG_NOMATCH << 16);
}
@@ -383,7 +376,8 @@ static struct ip_set_type hash_net_type __read_mostly = {
[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
[IPSET_ATTR_BYTES] = { .type = NLA_U64 },
[IPSET_ATTR_PACKETS] = { .type = NLA_U64 },
- [IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING },
+ [IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING,
+ .len = IPSET_MAX_COMMENT_SIZE },
[IPSET_ATTR_SKBMARK] = { .type = NLA_U64 },
[IPSET_ATTR_SKBPRIO] = { .type = NLA_U32 },
[IPSET_ATTR_SKBQUEUE] = { .type = NLA_U16 },
@@ -400,6 +394,7 @@ hash_net_init(void)
static void __exit
hash_net_fini(void)
{
+ rcu_barrier();
ip_set_type_unregister(&hash_net_type);
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.