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Message-Id: <20081027052559.7DB80C64094@host1.ystp.ac.ir>
Date: Mon, 27 Oct 2008 08:55:59 +0330 (IRST)
From: hamid.jafarian@...il.com (hamid jafarian)
to: Netfilter-devel <netfilter-devel@...r.kernel.org>
cc: Amin Azez <azez@...mechanic.net>
subject: [PATCH 03/05]IPtablestng/UserSpace - patch libip4tc.c
redefine macroes to use new features.
he also create to new macroes named 'TC_GET_CLASSIFIER & TC_CHG_CLASSIFIER' to manage classifiers.
diff --git a/libiptc/libip4tc.c b/libiptc/libip4tc.c
index 71af17f..6ca45b2 100644
--- a/libiptc/libip4tc.c
+++ b/libiptc/libip4tc.c
@@ -41,25 +41,30 @@ typedef unsigned int socklen_t;
#endif
#define STRUCT_ENTRY_TARGET struct ipt_entry_target
-#define STRUCT_ENTRY struct ipt_entry
+#define STRUCT_ENTRY struct pktt_entry
#define STRUCT_ENTRY_MATCH struct ipt_entry_match
-#define STRUCT_GETINFO struct ipt_getinfo
-#define STRUCT_GET_ENTRIES struct ipt_get_entries
-#define STRUCT_COUNTERS struct ipt_counters
-#define STRUCT_COUNTERS_INFO struct ipt_counters_info
+//#define STRUCT_GETINFO struct ipt_getinfo
+//#define STRUCT_GET_ENTRIES struct ipt_get_entries
+#define STRUCT_COUNTERS struct pktt_counters
+//#define STRUCT_COUNTERS_INFO struct ipt_counters_info
#define STRUCT_STANDARD_TARGET struct ipt_standard_target
-#define STRUCT_REPLACE struct ipt_replace
+//#define STRUCT_REPLACE struct ipt_replace
+#define STRUCT_TABLE_INFO struct pkt_table_info
+#define STRUCT_CHAIN_INFO struct pktt_chain_info
+#define STRUCT_CHAIN_TARGET struct pktt_chain_target
+#define STRUCT_COMMAND struct pktt_command
#define STRUCT_TC_HANDLE struct iptc_handle
#define TC_HANDLE_T iptc_handle_t
-#define ENTRY_ITERATE IPT_ENTRY_ITERATE
-#define TABLE_MAXNAMELEN IPT_TABLE_MAXNAMELEN
-#define FUNCTION_MAXNAMELEN IPT_FUNCTION_MAXNAMELEN
+#define ENTRY_ITERATE PKTT_ENTRY_ITERATE
+#define TABLE_MAXNAMELEN PKTT_TABLE_MAXNAMELEN
+#define CHAIN_MAXNAMELEN PKTT_CHAIN_MAXNAMELEN
+#define FUNCTION_MAXNAMELEN PKTT_FUNCTION_MAXNAMELEN
#define GET_TARGET ipt_get_target
-#define ERROR_TARGET IPT_ERROR_TARGET
+//#define ERROR_TARGET IPT_ERROR_TARGET
#define NUMHOOKS NF_IP_NUMHOOKS
#define IPT_CHAINLABEL ipt_chainlabel
@@ -94,8 +99,8 @@ typedef unsigned int socklen_t;
#define TC_FREE iptc_free
#define TC_COMMIT iptc_commit
#define TC_STRERROR iptc_strerror
-#define TC_NUM_RULES iptc_num_rules
-#define TC_GET_RULE iptc_get_rule
+#define TC_GET_CLASSIFIER iptc_get_classifier
+#define TC_CHG_CLASSIFIER iptc_chg_classifier
#define TC_AF AF_INET
#define TC_IPPROTO IPPROTO_IP
@@ -111,9 +116,11 @@ typedef unsigned int socklen_t;
#define LABEL_ACCEPT IPTC_LABEL_ACCEPT
#define LABEL_DROP IPTC_LABEL_DROP
#define LABEL_QUEUE IPTC_LABEL_QUEUE
+#define LABEL_CONTINUE IPTC_LABEL_CONTINUE
#define ALIGN IPT_ALIGN
-#define RETURN IPT_RETURN
+#define RETURN PKTT_RETURN
+#define CONTINUE PKTT_CONTINUE
#include "libiptc.c"
@@ -124,15 +131,19 @@ typedef unsigned int socklen_t;
(unsigned int)((n)&0xFF)
#define IP_PARTS(n) IP_PARTS_NATIVE(ntohl(n))
-
+/*
+ * hm.t. pktt_entry modifier
+ */
+#define ip pkt_header.ip4
+#if 0
int
dump_entry(STRUCT_ENTRY *e, const TC_HANDLE_T handle)
{
size_t i;
STRUCT_ENTRY_TARGET *t;
- printf("Entry %u (%lu):\n", iptcb_entry2index(handle, e),
- iptcb_entry2offset(handle, e));
+ /*printf("Entry %u (%lu):\n", iptcb_entry2index(handle, e),
+ iptcb_entry2offset(handle, e));*/
printf("SRC IP: %u.%u.%u.%u/%u.%u.%u.%u\n",
IP_PARTS(e->ip.src.s_addr),IP_PARTS(e->ip.smsk.s_addr));
printf("DST IP: %u.%u.%u.%u/%u.%u.%u.%u\n",
@@ -148,7 +159,10 @@ dump_entry(STRUCT_ENTRY *e, const TC_HANDLE_T handle)
printf("Invflags: %02X\n", e->ip.invflags);
printf("Counters: %llu packets, %llu bytes\n",
(unsigned long long)e->counters.pcnt, (unsigned long long)e->counters.bcnt);
- printf("Cache: %08X\n", e->nfcache);
+ printf("Cache: %08X ", e->nfcache);
+ if (e->nfcache & NFC_ALTERED) printf("ALTERED ");
+ if (e->nfcache & NFC_UNKNOWN) printf("UNKNOWN ");
+ printf("\n");
IPT_MATCH_ITERATE(e, print_match);
@@ -162,6 +176,7 @@ dump_entry(STRUCT_ENTRY *e, const TC_HANDLE_T handle)
: pos == -NF_DROP-1 ? "NF_DROP"
: pos == -NF_QUEUE-1 ? "NF_QUEUE"
: pos == RETURN ? "RETURN"
+ : pos == CONTINUE ? "CONTINUE"
: "UNKNOWN");
else
printf("verdict=%u\n", pos);
@@ -201,8 +216,9 @@ is_same(const STRUCT_ENTRY *a, const STRUCT_ENTRY *b, unsigned char *matchmask)
return NULL;
}
- if (a->target_offset != b->target_offset
- || a->next_offset != b->next_offset)
+ if (a->nfcache != b->nfcache
+ || a->target_offset != b->target_offset
+ || a->size != b->size)
return NULL;
mptr = matchmask + sizeof(STRUCT_ENTRY);
@@ -213,7 +229,6 @@ is_same(const STRUCT_ENTRY *a, const STRUCT_ENTRY *b, unsigned char *matchmask)
return mptr;
}
-#if 0
/***************************** DEBUGGING ********************************/
static inline int
unconditional(const struct ipt_ip *ip)
--
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