diff options
Diffstat (limited to 'src/expr/payload.c')
-rw-r--r-- | src/expr/payload.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/expr/payload.c b/src/expr/payload.c index 82747ec..8b41a9d 100644 --- a/src/expr/payload.c +++ b/src/expr/payload.c @@ -203,6 +203,32 @@ nftnl_expr_payload_parse(struct nftnl_expr *e, struct nlattr *attr) return 0; } +static int nftnl_payload_reg_len(const struct nftnl_expr *expr) +{ + const struct nftnl_expr_payload *payload = nftnl_expr_data(expr); + + return payload->len; +} + +static bool nftnl_payload_reg_cmp(const struct nftnl_reg *reg, + const struct nftnl_expr *e) +{ + const struct nftnl_expr_payload *payload = nftnl_expr_data(e); + + return reg->payload.base == payload->base && + reg->payload.offset == payload->offset && + reg->len >= payload->len; +} + +static void nftnl_payload_reg_update(struct nftnl_reg *reg, + const struct nftnl_expr *e) +{ + const struct nftnl_expr_payload *payload = nftnl_expr_data(e); + + reg->payload.base = payload->base; + reg->payload.offset = payload->offset; +} + static const char *base2str_array[NFT_PAYLOAD_INNER_HEADER + 1] = { [NFT_PAYLOAD_LL_HEADER] = "link", [NFT_PAYLOAD_NETWORK_HEADER] = "network", @@ -260,4 +286,9 @@ struct expr_ops expr_ops_payload = { .parse = nftnl_expr_payload_parse, .build = nftnl_expr_payload_build, .snprintf = nftnl_expr_payload_snprintf, + .reg = { + .len = nftnl_payload_reg_len, + .cmp = nftnl_payload_reg_cmp, + .update = nftnl_payload_reg_update, + }, }; |