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123 lines
3.4 KiB
Diff
123 lines
3.4 KiB
Diff
From: Pablo Neira Ayuso <pablo@netfilter.org>
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Date: Fri, 19 Jan 2018 01:41:38 +0100
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Subject: [PATCH] src: delete flowtable
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This patch allows you to delete an existing flowtable:
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# nft delete flowtable x m
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Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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---
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--- a/include/mnl.h
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+++ b/include/mnl.h
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@@ -95,6 +95,9 @@ mnl_nft_flowtable_dump(struct netlink_ct
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int mnl_nft_flowtable_batch_add(struct nftnl_flowtable *flo,
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struct nftnl_batch *batch, unsigned int flags,
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uint32_t seqnum);
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+int mnl_nft_flowtable_batch_del(struct nftnl_flowtable *flow,
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+ struct nftnl_batch *batch, unsigned int flags,
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+ uint32_t seqnum);
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struct nftnl_ruleset *mnl_nft_ruleset_dump(struct netlink_ctx *ctx,
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uint32_t family);
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--- a/include/netlink.h
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+++ b/include/netlink.h
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@@ -186,6 +186,9 @@ extern int netlink_list_flowtables(struc
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extern int netlink_add_flowtable(struct netlink_ctx *ctx,
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const struct handle *h, struct flowtable *ft,
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uint32_t flags);
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+extern int netlink_delete_flowtable(struct netlink_ctx *ctx,
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+ const struct handle *h,
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+ struct location *loc);
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extern void netlink_dump_chain(const struct nftnl_chain *nlc,
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struct netlink_ctx *ctx);
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--- a/src/evaluate.c
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+++ b/src/evaluate.c
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@@ -3121,6 +3121,7 @@ static int cmd_evaluate_delete(struct ev
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case CMD_OBJ_RULE:
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case CMD_OBJ_CHAIN:
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case CMD_OBJ_TABLE:
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+ case CMD_OBJ_FLOWTABLE:
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case CMD_OBJ_COUNTER:
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case CMD_OBJ_QUOTA:
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case CMD_OBJ_CT_HELPER:
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--- a/src/mnl.c
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+++ b/src/mnl.c
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@@ -1027,6 +1027,22 @@ int mnl_nft_flowtable_batch_add(struct n
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return 0;
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}
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+int mnl_nft_flowtable_batch_del(struct nftnl_flowtable *flo,
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+ struct nftnl_batch *batch, unsigned int flags,
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+ uint32_t seqnum)
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+{
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+ struct nlmsghdr *nlh;
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+
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+ nlh = nftnl_nlmsg_build_hdr(nftnl_batch_buffer(batch),
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+ NFT_MSG_DELFLOWTABLE,
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+ nftnl_flowtable_get_u32(flo, NFTNL_FLOWTABLE_FAMILY),
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+ flags, seqnum);
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+ nftnl_flowtable_nlmsg_build_payload(nlh, flo);
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+ mnl_nft_batch_continue(batch);
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+
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+ return 0;
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+}
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+
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/*
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* ruleset
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*/
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--- a/src/netlink.c
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+++ b/src/netlink.c
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@@ -1831,6 +1831,24 @@ int netlink_add_flowtable(struct netlink
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return err;
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}
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+int netlink_delete_flowtable(struct netlink_ctx *ctx, const struct handle *h,
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+ struct location *loc)
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+{
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+ struct nftnl_flowtable *flo;
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+ int err;
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+
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+ flo = alloc_nftnl_flowtable(h, NULL);
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+ netlink_dump_flowtable(flo, ctx);
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+
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+ err = mnl_nft_flowtable_batch_del(flo, ctx->batch, 0, ctx->seqnum);
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+ if (err < 0)
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+ netlink_io_error(ctx, loc, "Could not delete flowtable: %s",
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+ strerror(errno));
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+ nftnl_flowtable_free(flo);
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+
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+ return err;
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+}
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+
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static int list_obj_cb(struct nftnl_obj *nls, void *arg)
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{
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struct netlink_ctx *ctx = arg;
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--- a/src/parser_bison.y
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+++ b/src/parser_bison.y
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@@ -1024,6 +1024,10 @@ delete_cmd : TABLE table_spec
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{
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$$ = cmd_alloc(CMD_DELETE, CMD_OBJ_SETELEM, &$2, &@$, $3);
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}
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+ | FLOWTABLE flowtable_spec
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+ {
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+ $$ = cmd_alloc(CMD_DELETE, CMD_OBJ_FLOWTABLE, &$2, &@$, NULL);
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+ }
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| COUNTER obj_spec
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{
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$$ = cmd_alloc(CMD_DELETE, CMD_OBJ_COUNTER, &$2, &@$, NULL);
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--- a/src/rule.c
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+++ b/src/rule.c
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@@ -1177,6 +1177,9 @@ static int do_command_delete(struct netl
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case CMD_OBJ_LIMIT:
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return netlink_delete_obj(ctx, &cmd->handle, &cmd->location,
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NFT_OBJECT_LIMIT);
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+ case CMD_OBJ_FLOWTABLE:
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+ return netlink_delete_flowtable(ctx, &cmd->handle,
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+ &cmd->location);
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default:
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BUG("invalid command object type %u\n", cmd->obj);
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}
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