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authorPablo Neira Ayuso <pablo@netfilter.org>2021-11-02 14:07:04 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2021-11-03 12:48:19 +0100
commit6ad2058da66affc105d325e45ff82fd5b5cac41e (patch)
tree75818a002b868664c01ebaf39ae4a3370643c727
parent8f3048954d40da8240cf5ff07b84d5c2e66f9066 (diff)
datatype: add xinteger_type alias to print in hexadecimal
Add an alias of the integer type to print raw payload expressions in hexadecimal. Update tests/py. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
-rw-r--r--include/datatype.h1
-rw-r--r--src/datatype.c16
-rw-r--r--src/payload.c2
-rw-r--r--tests/py/any/rawpayload.t10
-rw-r--r--tests/py/any/rawpayload.t.payload6
5 files changed, 26 insertions, 9 deletions
diff --git a/include/datatype.h b/include/datatype.h
index 7ddd3566..f5bb9dc4 100644
--- a/include/datatype.h
+++ b/include/datatype.h
@@ -254,6 +254,7 @@ extern const struct datatype verdict_type;
extern const struct datatype nfproto_type;
extern const struct datatype bitmask_type;
extern const struct datatype integer_type;
+extern const struct datatype xinteger_type;
extern const struct datatype string_type;
extern const struct datatype lladdr_type;
extern const struct datatype ipaddr_type;
diff --git a/src/datatype.c b/src/datatype.c
index b849f708..a06c3996 100644
--- a/src/datatype.c
+++ b/src/datatype.c
@@ -410,6 +410,22 @@ const struct datatype integer_type = {
.parse = integer_type_parse,
};
+static void xinteger_type_print(const struct expr *expr, struct output_ctx *octx)
+{
+ nft_gmp_print(octx, "0x%Zx", expr->value);
+}
+
+/* Alias of integer_type to print raw payload expressions in hexadecimal. */
+const struct datatype xinteger_type = {
+ .type = TYPE_INTEGER,
+ .name = "integer",
+ .desc = "integer",
+ .basetype = &integer_type,
+ .print = xinteger_type_print,
+ .json = integer_type_json,
+ .parse = integer_type_parse,
+};
+
static void string_type_print(const struct expr *expr, struct output_ctx *octx)
{
unsigned int len = div_round_up(expr->len, BITS_PER_BYTE);
diff --git a/src/payload.c b/src/payload.c
index c662900b..d9e0d425 100644
--- a/src/payload.c
+++ b/src/payload.c
@@ -269,7 +269,7 @@ void payload_init_raw(struct expr *expr, enum proto_bases base,
expr->payload.base = base;
expr->payload.offset = offset;
expr->len = len;
- expr->dtype = &integer_type;
+ expr->dtype = &xinteger_type;
if (base != PROTO_BASE_TRANSPORT_HDR)
return;
diff --git a/tests/py/any/rawpayload.t b/tests/py/any/rawpayload.t
index 9687729d..9fe377e2 100644
--- a/tests/py/any/rawpayload.t
+++ b/tests/py/any/rawpayload.t
@@ -7,14 +7,14 @@
meta l4proto { tcp, udp, sctp} @th,16,16 { 22, 23, 80 };ok;meta l4proto { 6, 17, 132} th dport { 22, 23, 80}
meta l4proto tcp @th,16,16 { 22, 23, 80};ok;tcp dport { 22, 23, 80}
-@nh,8,8 255;ok
-@nh,8,16 0;ok
+@nh,8,8 0xff;ok
+@nh,8,16 0x0;ok
# out of range (0-1)
@th,16,1 2;fail
@ll,0,0 2;fail
@ll,0,1;fail
-@ll,0,1 1;ok;@ll,0,8 & 128 == 128
-@ll,0,8 and 0x80 eq 0x80;ok;@ll,0,8 & 128 == 128
-@ll,0,128 0xfedcba987654321001234567890abcde;ok;@ll,0,128 338770000845734292516042252062074518750
+@ll,0,1 1;ok;@ll,0,8 & 0x80 == 0x80
+@ll,0,8 & 0x80 == 0x80;ok
+@ll,0,128 0xfedcba987654321001234567890abcde;ok
diff --git a/tests/py/any/rawpayload.t.payload b/tests/py/any/rawpayload.t.payload
index b3ca919f..d2b38183 100644
--- a/tests/py/any/rawpayload.t.payload
+++ b/tests/py/any/rawpayload.t.payload
@@ -21,12 +21,12 @@ inet test-inet input
[ payload load 2b @ transport header + 2 => reg 1 ]
[ lookup reg 1 set __set%d ]
-# @nh,8,8 255
+# @nh,8,8 0xff
inet test-inet input
[ payload load 1b @ network header + 1 => reg 1 ]
[ cmp eq reg 1 0x000000ff ]
-# @nh,8,16 0
+# @nh,8,16 0x0
inet test-inet input
[ payload load 2b @ network header + 1 => reg 1 ]
[ cmp eq reg 1 0x00000000 ]
@@ -37,7 +37,7 @@ inet test-inet input
[ bitwise reg 1 = ( reg 1 & 0x00000080 ) ^ 0x00000000 ]
[ cmp eq reg 1 0x00000080 ]
-# @ll,0,8 and 0x80 eq 0x80
+# @ll,0,8 & 0x80 == 0x80
inet test-inet input
[ payload load 1b @ link header + 0 => reg 1 ]
[ bitwise reg 1 = ( reg 1 & 0x00000080 ) ^ 0x00000000 ]