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73 lines
2.7 KiB
Diff
73 lines
2.7 KiB
Diff
From b53cd994adaff887ec126de259e37d769ad585cb Mon Sep 17 00:00:00 2001
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From: Kenny Root <kroot@google.com>
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Date: Fri, 8 Feb 2013 11:22:25 -0800
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Subject: [PATCH] Fix failures when eng_dyn scans multiple directories
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If DIR_ADD is called with multiple directories, and the target file
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does not exist in the first directory scanned, the DSO object will still
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be considered "loaded" for the next call of DSO_load(...) and cause
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subsequent calls to DSO_load(...) fail with the reason code of "already
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loaded" even though the load failed.
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Additionally, with multiple directories used in eng_dyn, another problem
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manifests because the errors pushed onto the error stack will linger even
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if another library is loaded successfully on subsequent calls to
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DSO_load(...) in the directory scanning loop.
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Change-Id: I4ddd24f7b39bd88663e1783f30914870a907acfa
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---
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crypto/dso/dso_lib.c | 8 ++++++++
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crypto/engine/eng_dyn.c | 5 ++++-
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2 files changed, 12 insertions(+), 1 deletion(-)
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diff --git a/crypto/dso/dso_lib.c b/crypto/dso/dso_lib.c
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index 8a15b79..7801529 100644
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--- a/crypto/dso/dso_lib.c
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+++ b/crypto/dso/dso_lib.c
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@@ -237,11 +237,19 @@ DSO *DSO_load(DSO *dso, const char *filename, DSO_METHOD *meth, int flags)
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if(ret->meth->dso_load == NULL)
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{
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DSOerr(DSO_F_DSO_LOAD,DSO_R_UNSUPPORTED);
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+ /* Make sure we unset the filename on failure, because we use
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+ * this to determine when the DSO has been loaded above. */
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+ OPENSSL_free(ret->filename);
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+ ret->filename = NULL;
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goto err;
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}
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if(!ret->meth->dso_load(ret))
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{
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DSOerr(DSO_F_DSO_LOAD,DSO_R_LOAD_FAILED);
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+ /* Make sure we unset the filename on failure, because we use
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+ * this to determine when the DSO has been loaded above. */
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+ OPENSSL_free(ret->filename);
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+ ret->filename = NULL;
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goto err;
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}
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/* Load succeeded */
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diff --git a/crypto/engine/eng_dyn.c b/crypto/engine/eng_dyn.c
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index 807da7a..8fb8634 100644
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--- a/crypto/engine/eng_dyn.c
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+++ b/crypto/engine/eng_dyn.c
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@@ -408,7 +408,7 @@ static int int_load(dynamic_data_ctx *ctx)
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int num, loop;
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/* Unless told not to, try a direct load */
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if((ctx->dir_load != 2) && (DSO_load(ctx->dynamic_dso,
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- ctx->DYNAMIC_LIBNAME, NULL, 0)) != NULL)
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+ ctx->DYNAMIC_LIBNAME, NULL, 0) != NULL))
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return 1;
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/* If we're not allowed to use 'dirs' or we have none, fail */
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if(!ctx->dir_load || (num = sk_OPENSSL_STRING_num(ctx->dirs)) < 1)
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@@ -423,6 +423,9 @@ static int int_load(dynamic_data_ctx *ctx)
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{
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/* Found what we're looking for */
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OPENSSL_free(merge);
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+ /* Previous failed loop iterations, if any, will have resulted in
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+ * errors. Clear them out before returning success. */
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+ ERR_clear_error();
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return 1;
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}
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OPENSSL_free(merge);
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--
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1.7.12.3-x20-1
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