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storage: Properly terminate secrets

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The virSecretGetSecretString() helper looks up a secret for given
pool and returns its value in @secret_value and its length in
@secret_value_size. However, the trailing '\0' is not included in
either of the variables. This is because usually the value of the
secret is passed to some encoder (usually base64 encoder) where
the trailing zero must not be accounted for.

However, in two places we actually want the string as we don't
process it any further.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Michal Privoznik 2018-08-13 10:35:37 +02:00
parent e3e48d7cb8
commit bfd91dc0c4
2 changed files with 10 additions and 0 deletions
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5
src/storage/storage_backend_iscsi.c
View File

@ -303,6 +303,11 @@ virStorageBackendISCSISetAuth(const char *portal,
&secret_value, &secret_size) < 0)
goto cleanup;
if (VIR_REALLOC_N(secret_value, secret_size + 1) < 0)
goto cleanup;
secret_value[secret_size] = '\0';
if (virISCSINodeUpdate(portal,
source->devices[0].path,
"node.session.auth.authmethod",

5
src/storage/storage_backend_iscsi_direct.c
View File

@ -115,6 +115,11 @@ virStorageBackendISCSIDirectSetAuth(struct iscsi_context *iscsi,
&secret_value, &secret_size) < 0)
goto cleanup;
if (VIR_REALLOC_N(secret_value, secret_size + 1) < 0)
goto cleanup;
secret_value[secret_size] = '\0';
if (iscsi_set_initiator_username_pwd(iscsi,
authdef->username,
(const char *)secret_value) < 0) {