diff options
| author | Arturo Borrero <arturo.borrero.glez@gmail.com> | 2014-10-06 21:51:24 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2014-10-09 18:46:36 +0200 |
| commit | cf8c90ea9985c9019b002037629ee362b5c50343 (patch) | |
| tree | 34f830fcf6c69590a304e23351cafba9fafb86cb /src/evaluate.c | |
| parent | b0fedf634ce4ce81212294e5bef554dcd46746e1 (diff) | |
src: add masquerade support
This patch adds masquerade support for nft.
The syntax is:
% nft add rule nat postrouting masquerade [flags]
Currently, flags are:
random, random-fully, persistent
Example:
% nft add rule nat postrouting masquerade random,persistent
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src/evaluate.c')
| -rw-r--r-- | src/evaluate.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/evaluate.c b/src/evaluate.c index 83ef7498..108248a7 100644 --- a/src/evaluate.c +++ b/src/evaluate.c @@ -1350,6 +1350,31 @@ static int stmt_evaluate_nat(struct eval_ctx *ctx, struct stmt *stmt) return 0; } +static int stmt_evaluate_masq(struct eval_ctx *ctx, struct stmt *stmt) +{ + struct proto_ctx *pctx = &ctx->pctx; + + if (!pctx) + goto out; + + switch (pctx->family) { + case AF_INET: + expr_set_context(&ctx->ectx, &ipaddr_type, + 4 * BITS_PER_BYTE); + break; + case AF_INET6: + expr_set_context(&ctx->ectx, &ip6addr_type, + 16 * BITS_PER_BYTE); + break; + default: + return stmt_error(ctx, stmt, "ip and ip6 support only"); + } + +out: + stmt->flags |= STMT_F_TERMINAL; + return 0; +} + static int stmt_evaluate_ct(struct eval_ctx *ctx, struct stmt *stmt) { expr_set_context(&ctx->ectx, stmt->ct.tmpl->dtype, @@ -1410,6 +1435,8 @@ int stmt_evaluate(struct eval_ctx *ctx, struct stmt *stmt) return stmt_evaluate_reject(ctx, stmt); case STMT_NAT: return stmt_evaluate_nat(ctx, stmt); + case STMT_MASQ: + return stmt_evaluate_masq(ctx, stmt); case STMT_QUEUE: return stmt_evaluate_queue(ctx, stmt); case STMT_CT: |