diff options
Diffstat (limited to 'src/netlink_linearize.c')
| -rw-r--r-- | src/netlink_linearize.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/netlink_linearize.c b/src/netlink_linearize.c index 6bc0bee8..4a0001a4 100644 --- a/src/netlink_linearize.c +++ b/src/netlink_linearize.c @@ -761,6 +761,18 @@ static void netlink_gen_verdict_stmt(struct netlink_linearize_ctx *ctx, return netlink_gen_expr(ctx, stmt->expr, NFT_REG_VERDICT); } +static bool payload_needs_l4csum_update_pseudohdr(const struct expr *expr, + const struct proto_desc *desc) +{ + int i; + + for (i = 0; i < PROTO_HDRS_MAX; i++) { + if (payload_hdr_field(expr) == desc->pseudohdr[i]) + return true; + } + return false; +} + static void netlink_gen_payload_stmt(struct netlink_linearize_ctx *ctx, const struct stmt *stmt) { @@ -794,6 +806,11 @@ static void netlink_gen_payload_stmt(struct netlink_linearize_ctx *ctx, NFT_PAYLOAD_CSUM_INET); nftnl_expr_set_u32(nle, NFTNL_EXPR_PAYLOAD_CSUM_OFFSET, csum_off / BITS_PER_BYTE); + + if (expr->payload.base == PROTO_BASE_NETWORK_HDR && + payload_needs_l4csum_update_pseudohdr(expr, desc)) + nftnl_expr_set_u32(nle, NFTNL_EXPR_PAYLOAD_FLAGS, + NFT_PAYLOAD_L4CSUM_PSEUDOHDR); } nftnl_rule_add_expr(ctx->nlr, nle); |