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credentials: Move user impersonation to peer::get_identity()

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To retrieve user credentials, EapHost provides us the interactive user's
token we can use to impersonate.

By doing the impersonation early in peer::get_identity(), we don't need
to pass the token down the lower methods. This is rather a
simplification than a performance optimization.

Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman
2020-02-06 09:39:57 +01:00
parent e2eb41e811
commit 75488ba870
14 changed files with 42 additions and 73 deletions
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12
lib/TTLS/include/Credentials.h
View File

@@ -112,13 +112,12 @@ namespace eap
///
/// 1. Cached credentials
/// 2. Configured credentials (if \p cfg is derived from `config_method_with_cred`)
/// 3. Stored credentials
/// 3. Stored credentials (must be called in the connecting user context)
///
/// \param[in] dwFlags A combination of [EAP flags](https://msdn.microsoft.com/en-us/library/windows/desktop/bb891975.aspx) that describe the EAP authentication session behavior
/// \param[in] hTokenImpersonateUser Impersonation token for a logged-on user to collect user-related information
/// \param[in] cred_cached Cached credentials (optional, can be \c NULL, must be `credentials_tls_tunnel*` type)
/// \param[in] cfg Method configuration (unused, as must be as config_method_tls_tunnel is not derived from `config_method_with_cred`)
/// \param[in] pszTargetName The name in Windows Credential Manager to retrieve credentials from (optional, can be \c NULL)
/// \param[in] dwFlags A combination of [EAP flags](https://msdn.microsoft.com/en-us/library/windows/desktop/bb891975.aspx) that describe the EAP authentication session behavior
/// \param[in] cred_cached Cached credentials (optional, can be \c NULL, must be `credentials_tls_tunnel*` type)
/// \param[in] cfg Method configuration (unused, as must be as config_method_tls_tunnel is not derived from `config_method_with_cred`)
/// \param[in] pszTargetName The name in Windows Credential Manager to retrieve credentials from (optional, can be \c NULL)
///
/// \returns
/// - \c source_t::cache Credentials were obtained from EapHost cache
@@ -127,7 +126,6 @@ namespace eap
///
virtual source_t combine(
_In_ DWORD dwFlags,
_In_opt_ HANDLE hTokenImpersonateUser,
_In_opt_ const credentials *cred_cached,
_In_ const config_method &cfg,
_In_opt_z_ LPCTSTR pszTargetName);

3
lib/TTLS/include/Module.h
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@@ -64,8 +64,7 @@ namespace eap
_In_ const config_connection &cfg,
_In_count_(dwUserDataSize) const BYTE *pUserData,
_In_ DWORD dwUserDataSize,
_Inout_ credentials_connection& cred_out,
_In_ HANDLE hTokenImpersonateUser);
_Inout_ credentials_connection& cred_out);
};