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authorPablo Neira Ayuso <pablo@netfilter.org>2021-07-24 12:07:27 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2021-07-24 13:55:58 +0200
commit4e8dff2cb4da818a937f8c0efa1a0d73b632297e (patch)
tree66dae88164660e7d151ef883d231aa613c580dbd
parentc89fbc25102d126aa957e8a99d9ceb6ceaaf0193 (diff)
src: expose nft_ctx_clear_vars as API
This function might be useful to recycle the existing nft_ctx to use it with different external variable definitions. Moreover, reset ctx->num_vars to zero. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
-rw-r--r--include/nftables/libnftables.h1
-rw-r--r--src/libnftables.c4
-rw-r--r--src/libnftables.map1
3 files changed, 5 insertions, 1 deletions
diff --git a/include/nftables/libnftables.h b/include/nftables/libnftables.h
index aaf7388e..8e7151a3 100644
--- a/include/nftables/libnftables.h
+++ b/include/nftables/libnftables.h
@@ -79,6 +79,7 @@ int nft_ctx_add_include_path(struct nft_ctx *ctx, const char *path);
void nft_ctx_clear_include_paths(struct nft_ctx *ctx);
int nft_ctx_add_var(struct nft_ctx *ctx, const char *var);
+void nft_ctx_clear_vars(struct nft_ctx *ctx);
int nft_run_cmd_from_buffer(struct nft_ctx *nft, const char *buf);
int nft_run_cmd_from_filename(struct nft_ctx *nft, const char *filename);
diff --git a/src/libnftables.c b/src/libnftables.c
index de6dc7cd..aa6493aa 100644
--- a/src/libnftables.c
+++ b/src/libnftables.c
@@ -145,7 +145,8 @@ int nft_ctx_add_var(struct nft_ctx *ctx, const char *var)
return 0;
}
-static void nft_ctx_clear_vars(struct nft_ctx *ctx)
+EXPORT_SYMBOL(nft_ctx_clear_vars);
+void nft_ctx_clear_vars(struct nft_ctx *ctx)
{
unsigned int i;
@@ -153,6 +154,7 @@ static void nft_ctx_clear_vars(struct nft_ctx *ctx)
xfree(ctx->vars[i].key);
xfree(ctx->vars[i].value);
}
+ ctx->num_vars = 0;
xfree(ctx->vars);
}
diff --git a/src/libnftables.map b/src/libnftables.map
index 46d64a38..d3a795ce 100644
--- a/src/libnftables.map
+++ b/src/libnftables.map
@@ -26,4 +26,5 @@ local: *;
LIBNFTABLES_2 {
nft_ctx_add_var;
+ nft_ctx_clear_vars;
} LIBNFTABLES_1;