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authorJan Engelhardt <jengelh@medozas.de>2008-10-08 11:35:15 +0200
committerPatrick McHardy <kaber@trash.net>2008-10-08 11:35:15 +0200
commitf2ff525c8dae57b3cda51d76443f60f764f34202 (patch)
treeb28a6ed575375014dc14fc5b758e3d6da64977c2 /net/bridge/netfilter
parent102befab75c438bfa356c6976026326728771ebc (diff)
downloadblackbird-op-linux-f2ff525c8dae57b3cda51d76443f60f764f34202.tar.gz
blackbird-op-linux-f2ff525c8dae57b3cda51d76443f60f764f34202.zip
netfilter: ebtables: use generic table checking
Ebtables ORs (1 << NF_BR_NUMHOOKS) into the hook mask to indicate that the extension was called from a base chain. So this also needs to be present in the extensions' ->hooks. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'net/bridge/netfilter')
-rw-r--r--net/bridge/netfilter/ebt_arpreply.c4
-rw-r--r--net/bridge/netfilter/ebt_dnat.c2
-rw-r--r--net/bridge/netfilter/ebt_redirect.c2
-rw-r--r--net/bridge/netfilter/ebt_snat.c6
4 files changed, 8 insertions, 6 deletions
diff --git a/net/bridge/netfilter/ebt_arpreply.c b/net/bridge/netfilter/ebt_arpreply.c
index 8071b64af46f..0e51c8d7e5f2 100644
--- a/net/bridge/netfilter/ebt_arpreply.c
+++ b/net/bridge/netfilter/ebt_arpreply.c
@@ -73,8 +73,6 @@ ebt_arpreply_tg_check(const char *tablename, const void *entry,
e->invflags & EBT_IPROTO)
return false;
CLEAR_BASE_CHAIN_BIT;
- if (strcmp(tablename, "nat") || hookmask & ~(1 << NF_BR_PRE_ROUTING))
- return false;
return true;
}
@@ -82,6 +80,8 @@ static struct xt_target ebt_arpreply_tg_reg __read_mostly = {
.name = "arpreply",
.revision = 0,
.family = NFPROTO_BRIDGE,
+ .table = "nat",
+ .hooks = (1 << NF_BR_NUMHOOKS) | (1 << NF_BR_PRE_ROUTING),
.target = ebt_arpreply_tg,
.checkentry = ebt_arpreply_tg_check,
.targetsize = XT_ALIGN(sizeof(struct ebt_arpreply_info)),
diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c
index d2211c4a477e..cb80101e412c 100644
--- a/net/bridge/netfilter/ebt_dnat.c
+++ b/net/bridge/netfilter/ebt_dnat.c
@@ -51,6 +51,8 @@ static struct xt_target ebt_dnat_tg_reg __read_mostly = {
.name = "dnat",
.revision = 0,
.family = NFPROTO_BRIDGE,
+ .hooks = (1 << NF_BR_NUMHOOKS) | (1 << NF_BR_PRE_ROUTING) |
+ (1 << NF_BR_LOCAL_OUT) | (1 << NF_BR_BROUTING),
.target = ebt_dnat_tg,
.checkentry = ebt_dnat_tg_check,
.targetsize = XT_ALIGN(sizeof(struct ebt_nat_info)),
diff --git a/net/bridge/netfilter/ebt_redirect.c b/net/bridge/netfilter/ebt_redirect.c
index 1b7684ffe404..a50ffbe0e4fb 100644
--- a/net/bridge/netfilter/ebt_redirect.c
+++ b/net/bridge/netfilter/ebt_redirect.c
@@ -56,6 +56,8 @@ static struct xt_target ebt_redirect_tg_reg __read_mostly = {
.name = "redirect",
.revision = 0,
.family = NFPROTO_BRIDGE,
+ .hooks = (1 << NF_BR_NUMHOOKS) | (1 << NF_BR_PRE_ROUTING) |
+ (1 << NF_BR_BROUTING),
.target = ebt_redirect_tg,
.checkentry = ebt_redirect_tg_check,
.targetsize = XT_ALIGN(sizeof(struct ebt_redirect_info)),
diff --git a/net/bridge/netfilter/ebt_snat.c b/net/bridge/netfilter/ebt_snat.c
index c90217a4f9e1..8a55c7d49b55 100644
--- a/net/bridge/netfilter/ebt_snat.c
+++ b/net/bridge/netfilter/ebt_snat.c
@@ -56,10 +56,6 @@ ebt_snat_tg_check(const char *tablename, const void *e,
if (BASE_CHAIN && tmp == EBT_RETURN)
return false;
CLEAR_BASE_CHAIN_BIT;
- if (strcmp(tablename, "nat"))
- return false;
- if (hookmask & ~(1 << NF_BR_POST_ROUTING))
- return false;
if (tmp < -NUM_STANDARD_TARGETS || tmp >= 0)
return false;
@@ -73,6 +69,8 @@ static struct xt_target ebt_snat_tg_reg __read_mostly = {
.name = "snat",
.revision = 0,
.family = NFPROTO_BRIDGE,
+ .table = "nat",
+ .hooks = (1 << NF_BR_NUMHOOKS) | (1 << NF_BR_POST_ROUTING),
.target = ebt_snat_tg,
.checkentry = ebt_snat_tg_check,
.targetsize = XT_ALIGN(sizeof(struct ebt_nat_info)),
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