This is an inner function to get_cmp_data() returning the op value as-is
for caller examination.
Signed-off-by: Phil Sutter <phil@xxxxxx>
---
iptables/nft-shared.c | 17 ++++++++++-------
iptables/nft-shared.h | 1 +
2 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/iptables/nft-shared.c b/iptables/nft-shared.c
index 71e2f18dab929..616e6a4dcf3a6 100644
--- a/iptables/nft-shared.c
+++ b/iptables/nft-shared.c
@@ -466,17 +466,20 @@ static void nft_parse_match(struct nft_xt_ctx *ctx, struct nftnl_expr *e)
ctx->h->ops->parse_match(match, ctx->cs);
}
-void get_cmp_data(struct nftnl_expr *e, void *data, size_t dlen, bool *inv)
+void __get_cmp_data(struct nftnl_expr *e, void *data, size_t dlen, uint8_t *op)
{
uint32_t len;
- uint8_t op;
memcpy(data, nftnl_expr_get(e, NFTNL_EXPR_CMP_DATA, &len), dlen);
- op = nftnl_expr_get_u32(e, NFTNL_EXPR_CMP_OP);
- if (op == NFT_CMP_NEQ)
- *inv = true;
- else
- *inv = false;
+ *op = nftnl_expr_get_u32(e, NFTNL_EXPR_CMP_OP);
+}
+
+void get_cmp_data(struct nftnl_expr *e, void *data, size_t dlen, bool *inv)
+{
+ uint8_t op;
+
+ __get_cmp_data(e, data, dlen, &op);
+ *inv = (op == NFT_CMP_NEQ);
}
static void nft_meta_set_to_target(struct nft_xt_ctx *ctx)
diff --git a/iptables/nft-shared.h b/iptables/nft-shared.h
index 0718dc23e8b77..d866dcb512766 100644
--- a/iptables/nft-shared.h
+++ b/iptables/nft-shared.h
@@ -159,6 +159,7 @@ bool is_same_interfaces(const char *a_iniface, const char *a_outiface,
int parse_meta(struct nft_xt_ctx *ctx, struct nftnl_expr *e, uint8_t key,
char *iniface, unsigned char *iniface_mask, char *outiface,
unsigned char *outiface_mask, uint8_t *invflags);
+void __get_cmp_data(struct nftnl_expr *e, void *data, size_t dlen, uint8_t *op);
void get_cmp_data(struct nftnl_expr *e, void *data, size_t dlen, bool *inv);
void nft_rule_to_iptables_command_state(struct nft_handle *h,
const struct nftnl_rule *r,
--
2.34.1
