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authorPablo Neira Ayuso <pablo@netfilter.org>2012-01-04 14:30:02 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2012-01-10 01:54:45 +0100
commit931c0eff309d8c7277ebe6d670fd72d8fbe3c674 (patch)
tree08de51d959a6e642aad1f506f089ea2e1393e3b9 /src
parent395ac42f5f1844834698f29032b101c2890b6772 (diff)
downloadconntrack-tools-931c0eff309d8c7277ebe6d670fd72d8fbe3c674.tar.gz
conntrack-tools-931c0eff309d8c7277ebe6d670fd72d8fbe3c674.zip
conntrackd: generalize/cleanup network message building/parsing
This patch generalizes the network message building and parsing to prepare the upcoming expectation support. Basically, it renames: - NET_T_STATE_* by NET_T_STATE_CT_*, as I plan to add NET_T_STATE_EXP_* - BUILD_NETMSG by BUILD_NETMSG_FROM_CT, and build_payload by ct2msg. I plan to add exp2msg. - parse_payload by msg2ct, since I plan to add msg2exp. - modify object_status_to_network_type to prepare the support of expectations. - add prefix ct_ to all parsing functions in parse.c, as we will have similar functions to convert messages to expectation objects. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src')
-rw-r--r--src/build.c81
-rw-r--r--src/internal_bypass.c6
-rw-r--r--src/internal_cache.c12
-rw-r--r--src/network.c19
-rw-r--r--src/parse.c85
-rw-r--r--src/sync-alarm.c4
-rw-r--r--src/sync-ftfw.c2
-rw-r--r--src/sync-mode.c44
-rw-r--r--src/sync-notrack.c9
9 files changed, 142 insertions, 120 deletions
diff --git a/src/build.c b/src/build.c
index a495872..9c3687c 100644
--- a/src/build.c
+++ b/src/build.c
@@ -1,6 +1,7 @@
/*
- * (C) 2006-2008 by Pablo Neira Ayuso <pablo@netfilter.org>
- *
+ * (C) 2006-2011 by Pablo Neira Ayuso <pablo@netfilter.org>
+ * (C) 2011 by Vyatta Inc. <http://www.vyatta.com>
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
@@ -42,14 +43,14 @@ addattr(struct nethdr *n, int attr, const void *data, size_t len)
}
static inline void
-__build_u8(const struct nf_conntrack *ct, int a, struct nethdr *n, int b)
+ct_build_u8(const struct nf_conntrack *ct, int a, struct nethdr *n, int b)
{
void *ptr = put_header(n, b, sizeof(uint8_t));
memcpy(ptr, nfct_get_attr(ct, a), sizeof(uint8_t));
}
static inline void
-__build_u16(const struct nf_conntrack *ct, int a, struct nethdr *n, int b)
+ct_build_u16(const struct nf_conntrack *ct, int a, struct nethdr *n, int b)
{
uint16_t data = nfct_get_attr_u16(ct, a);
data = htons(data);
@@ -57,7 +58,7 @@ __build_u16(const struct nf_conntrack *ct, int a, struct nethdr *n, int b)
}
static inline void
-__build_u32(const struct nf_conntrack *ct, int a, struct nethdr *n, int b)
+ct_build_u32(const struct nf_conntrack *ct, int a, struct nethdr *n, int b)
{
uint32_t data = nfct_get_attr_u32(ct, a);
data = htonl(data);
@@ -65,7 +66,7 @@ __build_u32(const struct nf_conntrack *ct, int a, struct nethdr *n, int b)
}
static inline void
-__build_group(const struct nf_conntrack *ct, int a, struct nethdr *n,
+ct_build_group(const struct nf_conntrack *ct, int a, struct nethdr *n,
int b, int size)
{
void *ptr = put_header(n, b, size);
@@ -73,7 +74,7 @@ __build_group(const struct nf_conntrack *ct, int a, struct nethdr *n,
}
static inline void
-__build_natseqadj(const struct nf_conntrack *ct, struct nethdr *n)
+ct_build_natseqadj(const struct nf_conntrack *ct, struct nethdr *n)
{
struct nta_attr_natseqadj data = {
.orig_seq_correction_pos =
@@ -99,54 +100,54 @@ static enum nf_conntrack_attr nat_type[] =
static void build_l4proto_tcp(const struct nf_conntrack *ct, struct nethdr *n)
{
- __build_group(ct, ATTR_GRP_ORIG_PORT, n, NTA_PORT,
+ ct_build_group(ct, ATTR_GRP_ORIG_PORT, n, NTA_PORT,
sizeof(struct nfct_attr_grp_port));
if (!nfct_attr_is_set(ct, ATTR_TCP_STATE))
return;
- __build_u8(ct, ATTR_TCP_STATE, n, NTA_TCP_STATE);
+ ct_build_u8(ct, ATTR_TCP_STATE, n, NTA_TCP_STATE);
if (CONFIG(sync).tcp_window_tracking) {
- __build_u8(ct, ATTR_TCP_WSCALE_ORIG, n, NTA_TCP_WSCALE_ORIG);
- __build_u8(ct, ATTR_TCP_WSCALE_REPL, n, NTA_TCP_WSCALE_REPL);
+ ct_build_u8(ct, ATTR_TCP_WSCALE_ORIG, n, NTA_TCP_WSCALE_ORIG);
+ ct_build_u8(ct, ATTR_TCP_WSCALE_REPL, n, NTA_TCP_WSCALE_REPL);
}
}
static void build_l4proto_sctp(const struct nf_conntrack *ct, struct nethdr *n)
{
- __build_group(ct, ATTR_GRP_ORIG_PORT, n, NTA_PORT,
+ ct_build_group(ct, ATTR_GRP_ORIG_PORT, n, NTA_PORT,
sizeof(struct nfct_attr_grp_port));
if (!nfct_attr_is_set(ct, ATTR_SCTP_STATE))
return;
- __build_u8(ct, ATTR_SCTP_STATE, n, NTA_SCTP_STATE);
- __build_u32(ct, ATTR_SCTP_VTAG_ORIG, n, NTA_SCTP_VTAG_ORIG);
- __build_u32(ct, ATTR_SCTP_VTAG_REPL, n, NTA_SCTP_VTAG_REPL);
+ ct_build_u8(ct, ATTR_SCTP_STATE, n, NTA_SCTP_STATE);
+ ct_build_u32(ct, ATTR_SCTP_VTAG_ORIG, n, NTA_SCTP_VTAG_ORIG);
+ ct_build_u32(ct, ATTR_SCTP_VTAG_REPL, n, NTA_SCTP_VTAG_REPL);
}
static void build_l4proto_dccp(const struct nf_conntrack *ct, struct nethdr *n)
{
- __build_group(ct, ATTR_GRP_ORIG_PORT, n, NTA_PORT,
+ ct_build_group(ct, ATTR_GRP_ORIG_PORT, n, NTA_PORT,
sizeof(struct nfct_attr_grp_port));
if (!nfct_attr_is_set(ct, ATTR_DCCP_STATE))
return;
- __build_u8(ct, ATTR_DCCP_STATE, n, NTA_DCCP_STATE);
- __build_u8(ct, ATTR_DCCP_ROLE, n, NTA_DCCP_ROLE);
+ ct_build_u8(ct, ATTR_DCCP_STATE, n, NTA_DCCP_STATE);
+ ct_build_u8(ct, ATTR_DCCP_ROLE, n, NTA_DCCP_ROLE);
}
static void build_l4proto_icmp(const struct nf_conntrack *ct, struct nethdr *n)
{
- __build_u8(ct, ATTR_ICMP_TYPE, n, NTA_ICMP_TYPE);
- __build_u8(ct, ATTR_ICMP_CODE, n, NTA_ICMP_CODE);
- __build_u16(ct, ATTR_ICMP_ID, n, NTA_ICMP_ID);
+ ct_build_u8(ct, ATTR_ICMP_TYPE, n, NTA_ICMP_TYPE);
+ ct_build_u8(ct, ATTR_ICMP_CODE, n, NTA_ICMP_CODE);
+ ct_build_u16(ct, ATTR_ICMP_ID, n, NTA_ICMP_ID);
}
static void build_l4proto_udp(const struct nf_conntrack *ct, struct nethdr *n)
{
- __build_group(ct, ATTR_GRP_ORIG_PORT, n, NTA_PORT,
+ ct_build_group(ct, ATTR_GRP_ORIG_PORT, n, NTA_PORT,
sizeof(struct nfct_attr_grp_port));
}
@@ -165,45 +166,45 @@ static struct build_l4proto {
[IPPROTO_UDP] = { .build = build_l4proto_udp },
};
-void build_payload(const struct nf_conntrack *ct, struct nethdr *n)
+void ct2msg(const struct nf_conntrack *ct, struct nethdr *n)
{
uint8_t l4proto = nfct_get_attr_u8(ct, ATTR_L4PROTO);
if (nfct_attr_grp_is_set(ct, ATTR_GRP_ORIG_IPV4)) {
- __build_group(ct, ATTR_GRP_ORIG_IPV4, n, NTA_IPV4,
+ ct_build_group(ct, ATTR_GRP_ORIG_IPV4, n, NTA_IPV4,
sizeof(struct nfct_attr_grp_ipv4));
} else if (nfct_attr_grp_is_set(ct, ATTR_GRP_ORIG_IPV6)) {
- __build_group(ct, ATTR_GRP_ORIG_IPV6, n, NTA_IPV6,
+ ct_build_group(ct, ATTR_GRP_ORIG_IPV6, n, NTA_IPV6,
sizeof(struct nfct_attr_grp_ipv6));
}
- __build_u32(ct, ATTR_STATUS, n, NTA_STATUS);
- __build_u8(ct, ATTR_L4PROTO, n, NTA_L4PROTO);
+ ct_build_u32(ct, ATTR_STATUS, n, NTA_STATUS);
+ ct_build_u8(ct, ATTR_L4PROTO, n, NTA_L4PROTO);
if (l4proto_fcn[l4proto].build)
l4proto_fcn[l4proto].build(ct, n);
if (!CONFIG(commit_timeout) && nfct_attr_is_set(ct, ATTR_TIMEOUT))
- __build_u32(ct, ATTR_TIMEOUT, n, NTA_TIMEOUT);
+ ct_build_u32(ct, ATTR_TIMEOUT, n, NTA_TIMEOUT);
if (nfct_attr_is_set(ct, ATTR_MARK))
- __build_u32(ct, ATTR_MARK, n, NTA_MARK);
+ ct_build_u32(ct, ATTR_MARK, n, NTA_MARK);
/* setup the master conntrack */
if (nfct_attr_grp_is_set(ct, ATTR_GRP_MASTER_IPV4)) {
- __build_group(ct, ATTR_GRP_MASTER_IPV4, n, NTA_MASTER_IPV4,
+ ct_build_group(ct, ATTR_GRP_MASTER_IPV4, n, NTA_MASTER_IPV4,
sizeof(struct nfct_attr_grp_ipv4));
- __build_u8(ct, ATTR_MASTER_L4PROTO, n, NTA_MASTER_L4PROTO);
+ ct_build_u8(ct, ATTR_MASTER_L4PROTO, n, NTA_MASTER_L4PROTO);
if (nfct_attr_grp_is_set(ct, ATTR_GRP_MASTER_PORT)) {
- __build_group(ct, ATTR_GRP_MASTER_PORT,
+ ct_build_group(ct, ATTR_GRP_MASTER_PORT,
n, NTA_MASTER_PORT,
sizeof(struct nfct_attr_grp_port));
}
} else if (nfct_attr_grp_is_set(ct, ATTR_GRP_MASTER_IPV6)) {
- __build_group(ct, ATTR_GRP_MASTER_IPV6, n, NTA_MASTER_IPV6,
+ ct_build_group(ct, ATTR_GRP_MASTER_IPV6, n, NTA_MASTER_IPV6,
sizeof(struct nfct_attr_grp_ipv6));
- __build_u8(ct, ATTR_MASTER_L4PROTO, n, NTA_MASTER_L4PROTO);
+ ct_build_u8(ct, ATTR_MASTER_L4PROTO, n, NTA_MASTER_L4PROTO);
if (nfct_attr_grp_is_set(ct, ATTR_GRP_MASTER_PORT)) {
- __build_group(ct, ATTR_GRP_MASTER_PORT,
+ ct_build_group(ct, ATTR_GRP_MASTER_PORT,
n, NTA_MASTER_PORT,
sizeof(struct nfct_attr_grp_port));
}
@@ -211,15 +212,15 @@ void build_payload(const struct nf_conntrack *ct, struct nethdr *n)
/* NAT */
if (nfct_getobjopt(ct, NFCT_GOPT_IS_SNAT))
- __build_u32(ct, ATTR_REPL_IPV4_DST, n, NTA_SNAT_IPV4);
+ ct_build_u32(ct, ATTR_REPL_IPV4_DST, n, NTA_SNAT_IPV4);
if (nfct_getobjopt(ct, NFCT_GOPT_IS_DNAT))
- __build_u32(ct, ATTR_REPL_IPV4_SRC, n, NTA_DNAT_IPV4);
+ ct_build_u32(ct, ATTR_REPL_IPV4_SRC, n, NTA_DNAT_IPV4);
if (nfct_getobjopt(ct, NFCT_GOPT_IS_SPAT))
- __build_u16(ct, ATTR_REPL_PORT_DST, n, NTA_SPAT_PORT);
+ ct_build_u16(ct, ATTR_REPL_PORT_DST, n, NTA_SPAT_PORT);
if (nfct_getobjopt(ct, NFCT_GOPT_IS_DPAT))
- __build_u16(ct, ATTR_REPL_PORT_SRC, n, NTA_DPAT_PORT);
+ ct_build_u16(ct, ATTR_REPL_PORT_SRC, n, NTA_DPAT_PORT);
/* NAT sequence adjustment */
if (nfct_attr_is_set_array(ct, nat_type, 6))
- __build_natseqadj(ct, n);
+ ct_build_natseqadj(ct, n);
}
diff --git a/src/internal_bypass.c b/src/internal_bypass.c
index 8ecec34..98717f3 100644
--- a/src/internal_bypass.c
+++ b/src/internal_bypass.c
@@ -118,7 +118,7 @@ static void internal_bypass_ct_event_new(struct nf_conntrack *ct, int origin)
if (origin != CTD_ORIGIN_NOT_ME)
return;
- net = BUILD_NETMSG(ct, NET_T_STATE_NEW);
+ net = BUILD_NETMSG_FROM_CT(ct, NET_T_STATE_CT_NEW);
multichannel_send(STATE_SYNC(channel), net);
internal_bypass_stats.new++;
}
@@ -131,7 +131,7 @@ static void internal_bypass_ct_event_upd(struct nf_conntrack *ct, int origin)
if (origin != CTD_ORIGIN_NOT_ME)
return;
- net = BUILD_NETMSG(ct, NET_T_STATE_UPD);
+ net = BUILD_NETMSG_FROM_CT(ct, NET_T_STATE_CT_UPD);
multichannel_send(STATE_SYNC(channel), net);
internal_bypass_stats.upd++;
}
@@ -144,7 +144,7 @@ static int internal_bypass_ct_event_del(struct nf_conntrack *ct, int origin)
if (origin != CTD_ORIGIN_NOT_ME)
return 1;
- net = BUILD_NETMSG(ct, NET_T_STATE_DEL);
+ net = BUILD_NETMSG_FROM_CT(ct, NET_T_STATE_CT_DEL);
multichannel_send(STATE_SYNC(channel), net);
internal_bypass_stats.del++;
diff --git a/src/internal_cache.c b/src/internal_cache.c
index 7a698e6..952327d 100644
--- a/src/internal_cache.c
+++ b/src/internal_cache.c
@@ -81,7 +81,7 @@ static int internal_cache_ct_purge_step(void *data1, void *data2)
if (!STATE(get_retval)) {
if (obj->status != C_OBJ_DEAD) {
cache_object_set_status(obj, C_OBJ_DEAD);
- sync_send(obj, NET_T_STATE_DEL);
+ sync_send(obj, NET_T_STATE_CT_DEL);
cache_object_put(obj);
}
}
@@ -117,10 +117,10 @@ internal_cache_ct_resync(enum nf_conntrack_msg_type type,
switch (obj->status) {
case C_OBJ_NEW:
- sync_send(obj, NET_T_STATE_NEW);
+ sync_send(obj, NET_T_STATE_CT_NEW);
break;
case C_OBJ_ALIVE:
- sync_send(obj, NET_T_STATE_UPD);
+ sync_send(obj, NET_T_STATE_CT_UPD);
break;
}
return NFCT_CB_CONTINUE;
@@ -155,7 +155,7 @@ retry:
* processes or the kernel, but don't propagate events that
* have been triggered by conntrackd itself, eg. commits. */
if (origin == CTD_ORIGIN_NOT_ME)
- sync_send(obj, NET_T_STATE_NEW);
+ sync_send(obj, NET_T_STATE_CT_NEW);
} else {
cache_del(STATE(mode)->internal->ct.data, obj);
cache_object_free(obj);
@@ -176,7 +176,7 @@ static void internal_cache_ct_event_upd(struct nf_conntrack *ct, int origin)
return;
if (origin == CTD_ORIGIN_NOT_ME)
- sync_send(obj, NET_T_STATE_UPD);
+ sync_send(obj, NET_T_STATE_CT_UPD);
}
static int internal_cache_ct_event_del(struct nf_conntrack *ct, int origin)
@@ -196,7 +196,7 @@ static int internal_cache_ct_event_del(struct nf_conntrack *ct, int origin)
if (obj->status != C_OBJ_DEAD) {
cache_object_set_status(obj, C_OBJ_DEAD);
if (origin == CTD_ORIGIN_NOT_ME) {
- sync_send(obj, NET_T_STATE_DEL);
+ sync_send(obj, NET_T_STATE_CT_DEL);
}
cache_object_put(obj);
}
diff --git a/src/network.c b/src/network.c
index 6a66a2b..cadc466 100644
--- a/src/network.c
+++ b/src/network.c
@@ -1,6 +1,7 @@
/*
- * (C) 2006-2007 by Pablo Neira Ayuso <pablo@netfilter.org>
- *
+ * (C) 2006-2011 by Pablo Neira Ayuso <pablo@netfilter.org>
+ * (C) 2011 by Vyatta Inc. <http://www.vyatta.com>
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
@@ -119,13 +120,15 @@ int nethdr_track_is_seq_set()
#include "cache.h"
-static int status2type[] = {
- [C_OBJ_NEW] = NET_T_STATE_NEW,
- [C_OBJ_ALIVE] = NET_T_STATE_UPD,
- [C_OBJ_DEAD] = NET_T_STATE_DEL,
+static int status2type[CACHE_T_MAX][C_OBJ_MAX] = {
+ [CACHE_T_CT] = {
+ [C_OBJ_NEW] = NET_T_STATE_CT_NEW,
+ [C_OBJ_ALIVE] = NET_T_STATE_CT_UPD,
+ [C_OBJ_DEAD] = NET_T_STATE_CT_DEL,
+ },
};
-int object_status_to_network_type(int status)
+int object_status_to_network_type(struct cache_object *obj)
{
- return status2type[status];
+ return status2type[obj->cache->type][obj->status];
}
diff --git a/src/parse.c b/src/parse.c
index 7e60597..0718128 100644
--- a/src/parse.c
+++ b/src/parse.c
@@ -1,6 +1,7 @@
/*
- * (C) 2006-2007 by Pablo Neira Ayuso <pablo@netfilter.org>
- *
+ * (C) 2006-2011 by Pablo Neira Ayuso <pablo@netfilter.org>
+ * (C) 2011 by Vyatta Inc. <http://www.vyatta.com>
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
@@ -24,184 +25,184 @@
#define ssizeof(x) (int)sizeof(x)
#endif
-static void parse_u8(struct nf_conntrack *ct, int attr, void *data);
-static void parse_u16(struct nf_conntrack *ct, int attr, void *data);
-static void parse_u32(struct nf_conntrack *ct, int attr, void *data);
-static void parse_group(struct nf_conntrack *ct, int attr, void *data);
-static void parse_nat_seq_adj(struct nf_conntrack *ct, int attr, void *data);
+static void ct_parse_u8(struct nf_conntrack *ct, int attr, void *data);
+static void ct_parse_u16(struct nf_conntrack *ct, int attr, void *data);
+static void ct_parse_u32(struct nf_conntrack *ct, int attr, void *data);
+static void ct_parse_group(struct nf_conntrack *ct, int attr, void *data);
+static void ct_parse_nat_seq_adj(struct nf_conntrack *ct, int attr, void *data);
-struct parser {
+struct ct_parser {
void (*parse)(struct nf_conntrack *ct, int attr, void *data);
int attr;
int size;
};
-static struct parser h[NTA_MAX] = {
+static struct ct_parser h[NTA_MAX] = {
[NTA_IPV4] = {
- .parse = parse_group,
+ .parse = ct_parse_group,
.attr = ATTR_GRP_ORIG_IPV4,
.size = NTA_SIZE(sizeof(struct nfct_attr_grp_ipv4)),
},
[NTA_IPV6] = {
- .parse = parse_group,
+ .parse = ct_parse_group,
.attr = ATTR_GRP_ORIG_IPV6,
.size = NTA_SIZE(sizeof(struct nfct_attr_grp_ipv6)),
},
[NTA_PORT] = {
- .parse = parse_group,
+ .parse = ct_parse_group,
.attr = ATTR_GRP_ORIG_PORT,
.size = NTA_SIZE(sizeof(struct nfct_attr_grp_port)),
},
[NTA_L4PROTO] = {
- .parse = parse_u8,
+ .parse = ct_parse_u8,
.attr = ATTR_L4PROTO,
.size = NTA_SIZE(sizeof(uint8_t)),
},
[NTA_TCP_STATE] = {
- .parse = parse_u8,
+ .parse = ct_parse_u8,
.attr = ATTR_TCP_STATE,
.size = NTA_SIZE(sizeof(uint8_t)),
},
[NTA_STATUS] = {
- .parse = parse_u32,
+ .parse = ct_parse_u32,
.attr = ATTR_STATUS,
.size = NTA_SIZE(sizeof(uint32_t)),
},
[NTA_MARK] = {
- .parse = parse_u32,
+ .parse = ct_parse_u32,
.attr = ATTR_MARK,
.size = NTA_SIZE(sizeof(uint32_t)),
},
[NTA_TIMEOUT] = {
- .parse = parse_u32,
+ .parse = ct_parse_u32,
.attr = ATTR_TIMEOUT,
.size = NTA_SIZE(sizeof(uint32_t)),
},
[NTA_MASTER_IPV4] = {
- .parse = parse_group,
+ .parse = ct_parse_group,
.attr = ATTR_GRP_MASTER_IPV4,
.size = NTA_SIZE(sizeof(struct nfct_attr_grp_ipv4)),
},
[NTA_MASTER_IPV6] = {
- .parse = parse_group,
+ .parse = ct_parse_group,
.attr = ATTR_GRP_MASTER_IPV6,
.size = NTA_SIZE(sizeof(struct nfct_attr_grp_ipv6)),
},
[NTA_MASTER_L4PROTO] = {
- .parse = parse_u8,
+ .parse = ct_parse_u8,
.attr = ATTR_MASTER_L4PROTO,
.size = NTA_SIZE(sizeof(uint8_t)),
},
[NTA_MASTER_PORT] = {
- .parse = parse_group,
+ .parse = ct_parse_group,
.attr = ATTR_GRP_MASTER_PORT,
.size = NTA_SIZE(sizeof(struct nfct_attr_grp_port)),
},
[NTA_SNAT_IPV4] = {
- .parse = parse_u32,
+ .parse = ct_parse_u32,
.attr = ATTR_SNAT_IPV4,
.size = NTA_SIZE(sizeof(uint32_t)),
},
[NTA_DNAT_IPV4] = {
- .parse = parse_u32,
+ .parse = ct_parse_u32,
.attr = ATTR_DNAT_IPV4,
.size = NTA_SIZE(sizeof(uint32_t)),
},
[NTA_SPAT_PORT] = {
- .parse = parse_u16,
+ .parse = ct_parse_u16,
.attr = ATTR_SNAT_PORT,
.size = NTA_SIZE(sizeof(uint16_t)),
},
[NTA_DPAT_PORT] = {
- .parse = parse_u16,
+ .parse = ct_parse_u16,
.attr = ATTR_DNAT_PORT,
.size = NTA_SIZE(sizeof(uint16_t)),
},
[NTA_NAT_SEQ_ADJ] = {
- .parse = parse_nat_seq_adj,
+ .parse = ct_parse_nat_seq_adj,
.size = NTA_SIZE(sizeof(struct nta_attr_natseqadj)),
},
[NTA_SCTP_STATE] = {
- .parse = parse_u8,
+ .parse = ct_parse_u8,
.attr = ATTR_SCTP_STATE,
.size = NTA_SIZE(sizeof(uint8_t)),
},
[NTA_SCTP_VTAG_ORIG] = {
- .parse = parse_u32,
+ .parse = ct_parse_u32,
.attr = ATTR_SCTP_VTAG_ORIG,
.size = NTA_SIZE(sizeof(uint32_t)),
},
[NTA_SCTP_VTAG_REPL] = {
- .parse = parse_u32,
+ .parse = ct_parse_u32,
.attr = ATTR_SCTP_VTAG_REPL,
.size = NTA_SIZE(sizeof(uint32_t)),
},
[NTA_DCCP_STATE] = {
- .parse = parse_u8,
+ .parse = ct_parse_u8,
.attr = ATTR_DCCP_STATE,
.size = NTA_SIZE(sizeof(uint8_t)),
},
[NTA_DCCP_ROLE] = {
- .parse = parse_u8,
+ .parse = ct_parse_u8,
.attr = ATTR_DCCP_ROLE,
.size = NTA_SIZE(sizeof(uint8_t)),
},
[NTA_ICMP_TYPE] = {
- .parse = parse_u8,
+ .parse = ct_parse_u8,
.attr = ATTR_ICMP_TYPE,
.size = NTA_SIZE(sizeof(uint8_t)),
},
[NTA_ICMP_CODE] = {
- .parse = parse_u8,
+ .parse = ct_parse_u8,
.attr = ATTR_ICMP_CODE,
.size = NTA_SIZE(sizeof(uint8_t)),
},
[NTA_ICMP_ID] = {
- .parse = parse_u16,
+ .parse = ct_parse_u16,
.attr = ATTR_ICMP_ID,
.size = NTA_SIZE(sizeof(uint16_t)),
},
[NTA_TCP_WSCALE_ORIG] = {
- .parse = parse_u8,
+ .parse = ct_parse_u8,
.attr = ATTR_TCP_WSCALE_ORIG,
.size = NTA_SIZE(sizeof(uint8_t)),
},
[NTA_TCP_WSCALE_REPL] = {
- .parse = parse_u8,
+ .parse = ct_parse_u8,
.attr = ATTR_TCP_WSCALE_REPL,
.size = NTA_SIZE(sizeof(uint8_t)),
},
};
static void
-parse_u8(struct nf_conntrack *ct, int attr, void *data)
+ct_parse_u8(struct nf_conntrack *ct, int attr, void *data)
{
uint8_t *value = (uint8_t *) data;
nfct_set_attr_u8(ct, h[attr].attr, *value);
}
static void
-parse_u16(struct nf_conntrack *ct, int attr, void *data)
+ct_parse_u16(struct nf_conntrack *ct, int attr, void *data)
{
uint16_t *value = (uint16_t *) data;
nfct_set_attr_u16(ct, h[attr].attr, ntohs(*value));
}
static void
-parse_u32(struct nf_conntrack *ct, int attr, void *data)
+ct_parse_u32(struct nf_conntrack *ct, int attr, void *data)
{
uint32_t *value = (uint32_t *) data;
nfct_set_attr_u32(ct, h[attr].attr, ntohl(*value));
}
static void
-parse_group(struct nf_conntrack *ct, int attr, void *data)
+ct_parse_group(struct nf_conntrack *ct, int attr, void *data)
{
nfct_set_attr_grp(ct, h[attr].attr, data);
}
static void
-parse_nat_seq_adj(struct nf_conntrack *ct, int attr, void *data)
+ct_parse_nat_seq_adj(struct nf_conntrack *ct, int attr, void *data)
{
struct nta_attr_natseqadj *this = data;
nfct_set_attr_u32(ct, ATTR_ORIG_NAT_SEQ_CORRECTION_POS,
@@ -218,7 +219,7 @@ parse_nat_seq_adj(struct nf_conntrack *ct, int attr, void *data)
ntohl(this->repl_seq_offset_after));
}
-int parse_payload(struct nf_conntrack *ct, struct nethdr *net, size_t remain)
+int msg2ct(struct nf_conntrack *ct, struct nethdr *net, size_t remain)
{
int len;
struct netattr *attr;
diff --git a/src/sync-alarm.c b/src/sync-alarm.c
index 8d6b34d..65154a1 100644
--- a/src/sync-alarm.c
+++ b/src/sync-alarm.c
@@ -42,7 +42,7 @@ static void refresher(struct alarm_block *a, void *data)
random() % CONFIG(refresh) + 1,
((random() % 5 + 1) * 200000) - 1);
- alarm_enqueue(obj, NET_T_STATE_UPD);
+ alarm_enqueue(obj, NET_T_STATE_CT_UPD);
}
static void cache_alarm_add(struct cache_object *obj, void *data)
@@ -137,7 +137,7 @@ static int tx_queue_xmit(struct queue_node *n, const void *data)
ca = (struct cache_alarm *)n;
obj = cache_data_get_object(STATE(mode)->internal->ct.data, ca);
- type = object_status_to_network_type(obj->status);
+ type = object_status_to_network_type(obj);
net = obj->cache->ops->build_msg(obj, type);
multichannel_send(STATE_SYNC(channel), net);
cache_object_put(obj);
diff --git a/src/sync-ftfw.c b/src/sync-ftfw.c
index 55eda0b..cff4d25 100644
--- a/src/sync-ftfw.c
+++ b/src/sync-ftfw.c
@@ -518,7 +518,7 @@ static int tx_queue_xmit(struct queue_node *n, const void *data)
cn = (struct cache_ftfw *)n;
obj = cache_data_get_object(STATE(mode)->internal->ct.data, cn);
- type = object_status_to_network_type(obj->status);
+ type = object_status_to_network_type(obj);
net = obj->cache->ops->build_msg(obj, type);
nethdr_set_hello(net);
diff --git a/src/sync-mode.c b/src/sync-mode.c
index 7f019f7..17533f8 100644
--- a/src/sync-mode.c
+++ b/src/sync-mode.c
@@ -41,6 +41,24 @@
#include <net/if.h>
#include <fcntl.h>
+static struct nf_conntrack *msg2ct_alloc(struct nethdr *net, size_t remain)
+{
+ struct nf_conntrack *ct;
+
+ /* TODO: add stats on ENOMEM errors in the future. */
+ ct = nfct_new();
+ if (ct == NULL)
+ return NULL;
+
+ if (msg2ct(ct, net, remain) == -1) {
+ STATE_SYNC(error).msg_rcv_malformed++;
+ STATE_SYNC(error).msg_rcv_bad_payload++;
+ nfct_destroy(ct);
+ return NULL;
+ }
+ return ct;
+}
+
static void
do_channel_handler_step(int i, struct nethdr *net, size_t remain)
{
@@ -74,26 +92,24 @@ do_channel_handler_step(int i, struct nethdr *net, size_t remain)
STATE_SYNC(error).msg_rcv_bad_type++;
return;
}
- /* TODO: add stats on ENOMEM errors in the future. */
- ct = nfct_new();
- if (ct == NULL)
- return;
-
- if (parse_payload(ct, net, remain) == -1) {
- STATE_SYNC(error).msg_rcv_malformed++;
- STATE_SYNC(error).msg_rcv_bad_payload++;
- nfct_destroy(ct);
- return;
- }
switch(net->type) {
- case NET_T_STATE_NEW:
+ case NET_T_STATE_CT_NEW:
+ ct = msg2ct_alloc(net, remain);
+ if (ct == NULL)
+ return;
STATE_SYNC(external)->ct.new(ct);
break;
- case NET_T_STATE_UPD:
+ case NET_T_STATE_CT_UPD:
+ ct = msg2ct_alloc(net, remain);
+ if (ct == NULL)
+ return;
STATE_SYNC(external)->ct.upd(ct);
break;
- case NET_T_STATE_DEL:
+ case NET_T_STATE_CT_DEL:
+ ct = msg2ct_alloc(net, remain);
+ if (ct == NULL)
+ return;
STATE_SYNC(external)->ct.del(ct);
break;
default:
diff --git a/src/sync-notrack.c b/src/sync-notrack.c
index e25cfd8..6c798ac 100644
--- a/src/sync-notrack.c
+++ b/src/sync-notrack.c
@@ -1,6 +1,7 @@
/*
- * (C) 2008 by Pablo Neira Ayuso <pablo@netfilter.org>
- *
+ * (C) 2006-2011 by Pablo Neira Ayuso <pablo@netfilter.org>
+ * (C) 2011 by Vyatta Inc. <http://www.vyatta.com>
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
@@ -87,7 +88,7 @@ static int kernel_resync_cb(enum nf_conntrack_msg_type type,
{
struct nethdr *net;
- net = BUILD_NETMSG(ct, NET_T_STATE_NEW);
+ net = BUILD_NETMSG_FROM_CT(ct, NET_T_STATE_CT_NEW);
multichannel_send(STATE_SYNC(channel), net);
return NFCT_CB_CONTINUE;
@@ -198,7 +199,7 @@ static int tx_queue_xmit(struct queue_node *n, const void *data2)
cn = (struct cache_ftfw *)n;
obj = cache_data_get_object(STATE(mode)->internal->ct.data, cn);
- type = object_status_to_network_type(obj->status);;
+ type = object_status_to_network_type(obj);;
net = obj->cache->ops->build_msg(obj, type);
multichannel_send(STATE_SYNC(channel), net);