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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>
This commit is contained in:
Jan Engelhardt 2008-10-08 11:35:15 +02:00 committed by Patrick McHardy
parent 102befab75
commit f2ff525c8d
4 changed files with 8 additions and 6 deletions
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4
net/bridge/netfilter/ebt_arpreply.c
View File

@ -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)),

2
net/bridge/netfilter/ebt_dnat.c
View File

@ -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)),

2
net/bridge/netfilter/ebt_redirect.c
View File

@ -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)),

6
net/bridge/netfilter/ebt_snat.c
View File

@ -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)),