So we can use the 'redirect' reserve word as constant from the rhs
expression. Thus, we can use it as icmp type.
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
include/datatype.h | 1 +
src/parser_bison.y | 7 +++++++
src/proto.c | 2 +-
3 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/include/datatype.h b/include/datatype.h
index 07fedce..91ca2dd 100644
--- a/include/datatype.h
+++ b/include/datatype.h
@@ -207,6 +207,7 @@ extern const struct datatype arphrd_type;
extern const struct datatype inet_protocol_type;
extern const struct datatype inet_service_type;
extern const struct datatype mark_type;
+extern const struct datatype icmp_type_type;
extern const struct datatype icmp_code_type;
extern const struct datatype icmpv6_code_type;
extern const struct datatype icmpx_code_type;
diff --git a/src/parser_bison.y b/src/parser_bison.y
index be1c740..d42bd2f 100644
--- a/src/parser_bison.y
+++ b/src/parser_bison.y
@@ -2101,6 +2101,13 @@ primary_rhs_expr : symbol_expr { $$ = $1; }
BYTEORDER_HOST_ENDIAN,
sizeof(data) * BITS_PER_BYTE, &data);
}
+ | REDIRECT
+ {
+ uint8_t data = ICMP_REDIRECT;
+ $$ = constant_expr_alloc(&@$, &icmp_type_type,
+ BYTEORDER_HOST_ENDIAN,
+ sizeof(data) * BITS_PER_BYTE, &data);
+ }
;
relational_op : EQ { $$ = OP_EQ; }
diff --git a/src/proto.c b/src/proto.c
index 3282271..65ee158 100644
--- a/src/proto.c
+++ b/src/proto.c
@@ -303,7 +303,7 @@ static const struct symbol_table icmp_type_tbl = {
},
};
-static const struct datatype icmp_type_type = {
+const struct datatype icmp_type_type = {
.type = TYPE_ICMP_TYPE,
.name = "icmp_type",
.desc = "ICMP type",
--
2.1.4
--
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