netfilter: nft_compat: call {target, match}->destroy() to cleanup entry
Otherwise, the reference to external objects (eg. modules) are not released when the rules are removed. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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@ -195,6 +195,15 @@ static void
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nft_target_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
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{
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struct xt_target *target = expr->ops->data;
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void *info = nft_expr_priv(expr);
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struct xt_tgdtor_param par;
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par.net = ctx->net;
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par.target = target;
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par.targinfo = info;
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par.family = ctx->afi->family;
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if (par.target->destroy != NULL)
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par.target->destroy(&par);
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module_put(target->me);
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}
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@ -382,6 +391,15 @@ static void
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nft_match_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
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{
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struct xt_match *match = expr->ops->data;
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void *info = nft_expr_priv(expr);
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struct xt_mtdtor_param par;
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par.net = ctx->net;
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par.match = match;
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par.matchinfo = info;
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par.family = ctx->afi->family;
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if (par.match->destroy != NULL)
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par.match->destroy(&par);
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module_put(match->me);
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}
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