Add the "state" alias to the "conntrack" match
diff --git a/extensions/libxt_conntrack.c b/extensions/libxt_conntrack.c
index c37f14d..f7704eb 100644
--- a/extensions/libxt_conntrack.c
+++ b/extensions/libxt_conntrack.c
@@ -801,7 +801,9 @@
if (info->match_flags & XT_CONNTRACK_STATE) {
if (info->invert_flags & XT_CONNTRACK_STATE)
printf(" !");
- printf(" %sctstate", prefix);
+ printf(" %s%s", prefix,
+ info->match_flags & XT_CONNTRACK_STATE_ALIAS
+ ? "state" : "ctstate");
print_state(info->state_mask);
}
@@ -902,6 +904,15 @@
}
}
+static const char *
+conntrack_print_name_alias(const struct xt_entry_match *match)
+{
+ struct xt_conntrack_mtinfo1 *info = (void *)match->data;
+
+ return info->match_flags & XT_CONNTRACK_STATE_ALIAS
+ ? "state" : "conntrack";
+}
+
static void conntrack_print(const void *ip, const struct xt_entry_match *match,
int numeric)
{
@@ -1083,7 +1094,7 @@
struct xt_conntrack_mtinfo1 *sinfo = cb->data;
xtables_option_parse(cb);
- sinfo->match_flags = XT_CONNTRACK_STATE;
+ sinfo->match_flags = XT_CONNTRACK_STATE | XT_CONNTRACK_STATE_ALIAS;
sinfo->state_mask = state_parse_states(cb->arg);
if (cb->invert)
sinfo->invert_flags |= XT_CONNTRACK_STATE;
@@ -1094,7 +1105,7 @@
struct xt_conntrack_mtinfo3 *sinfo = cb->data;
xtables_option_parse(cb);
- sinfo->match_flags = XT_CONNTRACK_STATE;
+ sinfo->match_flags = XT_CONNTRACK_STATE | XT_CONNTRACK_STATE_ALIAS;
sinfo->state_mask = state_parse_states(cb->arg);
if (cb->invert)
sinfo->invert_flags |= XT_CONNTRACK_STATE;
@@ -1158,6 +1169,7 @@
.x6_fcheck = conntrack_mt_check,
.print = conntrack_print,
.save = conntrack_save,
+ .alias = conntrack_print_name_alias,
.x6_options = conntrack_mt_opts_v0,
},
{
@@ -1172,6 +1184,7 @@
.x6_fcheck = conntrack_mt_check,
.print = conntrack1_mt4_print,
.save = conntrack1_mt4_save,
+ .alias = conntrack_print_name_alias,
.x6_options = conntrack2_mt_opts,
},
{
@@ -1186,6 +1199,7 @@
.x6_fcheck = conntrack_mt_check,
.print = conntrack1_mt6_print,
.save = conntrack1_mt6_save,
+ .alias = conntrack_print_name_alias,
.x6_options = conntrack2_mt_opts,
},
{
@@ -1200,6 +1214,7 @@
.x6_fcheck = conntrack_mt_check,
.print = conntrack2_mt_print,
.save = conntrack2_mt_save,
+ .alias = conntrack_print_name_alias,
.x6_options = conntrack2_mt_opts,
},
{
@@ -1214,6 +1229,7 @@
.x6_fcheck = conntrack_mt_check,
.print = conntrack2_mt6_print,
.save = conntrack2_mt6_save,
+ .alias = conntrack_print_name_alias,
.x6_options = conntrack2_mt_opts,
},
{
@@ -1228,6 +1244,7 @@
.x6_fcheck = conntrack_mt_check,
.print = conntrack3_mt_print,
.save = conntrack3_mt_save,
+ .alias = conntrack_print_name_alias,
.x6_options = conntrack3_mt_opts,
},
{
@@ -1242,6 +1259,7 @@
.x6_fcheck = conntrack_mt_check,
.print = conntrack3_mt6_print,
.save = conntrack3_mt6_save,
+ .alias = conntrack_print_name_alias,
.x6_options = conntrack3_mt_opts,
},
{
@@ -1249,6 +1267,7 @@
.name = "state",
.real_name = "conntrack",
.revision = 1,
+ .ext_flags = XTABLES_EXT_ALIAS,
.version = XTABLES_VERSION,
.size = XT_ALIGN(sizeof(struct xt_conntrack_mtinfo1)),
.userspacesize = XT_ALIGN(sizeof(struct xt_conntrack_mtinfo1)),
@@ -1261,6 +1280,7 @@
.name = "state",
.real_name = "conntrack",
.revision = 2,
+ .ext_flags = XTABLES_EXT_ALIAS,
.version = XTABLES_VERSION,
.size = XT_ALIGN(sizeof(struct xt_conntrack_mtinfo2)),
.userspacesize = XT_ALIGN(sizeof(struct xt_conntrack_mtinfo2)),
@@ -1273,6 +1293,7 @@
.name = "state",
.real_name = "conntrack",
.revision = 3,
+ .ext_flags = XTABLES_EXT_ALIAS,
.version = XTABLES_VERSION,
.size = XT_ALIGN(sizeof(struct xt_conntrack_mtinfo3)),
.userspacesize = XT_ALIGN(sizeof(struct xt_conntrack_mtinfo3)),
diff --git a/extensions/libxt_state.man b/extensions/libxt_state.man
index bd60468..ec096ca 100644
--- a/extensions/libxt_state.man
+++ b/extensions/libxt_state.man
@@ -1,4 +1,4 @@
-The "state" module is an obsolete version of "conntrack".
+The "state" extension is a subset of the "conntrack" module.
"state" allows access to the connection tracking state for this packet.
.TP
[\fB!\fP] \fB\-\-state\fP \fIstate\fP
diff --git a/include/linux/netfilter/xt_conntrack.h b/include/linux/netfilter/xt_conntrack.h
index 74b904d..e971501 100644
--- a/include/linux/netfilter/xt_conntrack.h
+++ b/include/linux/netfilter/xt_conntrack.h
@@ -30,6 +30,7 @@
XT_CONNTRACK_REPLSRC_PORT = 1 << 10,
XT_CONNTRACK_REPLDST_PORT = 1 << 11,
XT_CONNTRACK_DIRECTION = 1 << 12,
+ XT_CONNTRACK_STATE_ALIAS = 1 << 13,
};
struct xt_conntrack_mtinfo1 {
