From b691e2ea1d643adeb89c576a105f08cfff677cfb Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Thu, 2 Feb 2023 21:47:56 +0100 Subject: optimize: fix incorrect expansion into concatenation with verdict map # nft -c -o -f ruleset.nft Merging: ruleset.nft:3:3-53: meta pkttype broadcast udp dport { 67, 547 } accept ruleset.nft:4:17-58: meta pkttype multicast udp dport 1900 drop into: meta pkttype . udp dport vmap { broadcast . { 67, 547 } : accept, multicast . 1900 : drop } ruleset.nft:3:38-39: Error: invalid data type, expected concatenation of (packet type, internet network service) meta pkttype broadcast udp dport { 67, 547 } accept ^^ Similar to 187c6d01d357 ("optimize: expand implicit set element when merging into concatenation") but for verdict maps. Reported-by: Simon G. Trajkovski Signed-off-by: Pablo Neira Ayuso --- src/optimize.c | 33 ++++++++++++++++++++++----------- 1 file changed, 22 insertions(+), 11 deletions(-) (limited to 'src/optimize.c') diff --git a/src/optimize.c b/src/optimize.c index 8cec04c0..5f6e3a64 100644 --- a/src/optimize.c +++ b/src/optimize.c @@ -738,14 +738,32 @@ static void merge_stmts_vmap(const struct optimize_ctx *ctx, stmt_free(verdict_a); } +static void __merge_concat_stmts_vmap(const struct optimize_ctx *ctx, + uint32_t i, const struct merge *merge, + struct expr *set, struct stmt *verdict) +{ + struct expr *concat, *next, *elem, *mapping; + LIST_HEAD(concat_list); + + __merge_concat(ctx, i, merge, &concat_list); + + list_for_each_entry_safe(concat, next, &concat_list, list) { + list_del(&concat->list); + elem = set_elem_expr_alloc(&internal_location, concat); + mapping = mapping_expr_alloc(&internal_location, elem, + expr_get(verdict->expr)); + compound_expr_add(set, mapping); + } +} + static void merge_concat_stmts_vmap(const struct optimize_ctx *ctx, uint32_t from, uint32_t to, const struct merge *merge) { struct stmt *orig_stmt = ctx->stmt_matrix[from][merge->stmt[0]]; - struct expr *concat_a, *concat_b, *expr, *set; - struct stmt *stmt, *stmt_a, *stmt_b, *verdict; - uint32_t i, j; + struct stmt *stmt, *stmt_a, *verdict; + struct expr *concat_a, *expr, *set; + uint32_t i; int k; k = stmt_verdict_find(ctx); @@ -763,15 +781,8 @@ static void merge_concat_stmts_vmap(const struct optimize_ctx *ctx, set->set_flags |= NFT_SET_ANONYMOUS; for (i = from; i <= to; i++) { - concat_b = concat_expr_alloc(&internal_location); - for (j = 0; j < merge->num_stmts; j++) { - stmt_b = ctx->stmt_matrix[i][merge->stmt[j]]; - expr = stmt_b->expr->right; - compound_expr_add(concat_b, expr_get(expr)); - } verdict = ctx->stmt_matrix[i][k]; - build_verdict_map(concat_b, verdict, set); - expr_free(concat_b); + __merge_concat_stmts_vmap(ctx, i, merge, set, verdict); } expr = map_expr_alloc(&internal_location, concat_a, set); -- cgit v1.2.3