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auth:creds: Add cli_credentials_(get|set)_smb_ipc_signing()

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Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This commit is contained in:
Andreas Schneider 2020-05-28 16:31:35 +02:00 committed by Andreas Schneider
parent 098774b244
commit 71d65278e1
3 changed files with 60 additions and 0 deletions
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51
auth/credentials/credentials.c
View File

@ -46,6 +46,12 @@ _PUBLIC_ struct cli_credentials *cli_credentials_init(TALLOC_CTX *mem_ctx)
cred->signing_state = SMB_SIGNING_DEFAULT;
/*
* The default value of lpcfg_client_ipc_signing() is REQUIRED, so use
* the same value here.
*/
cred->ipc_signing_state = SMB_SIGNING_REQUIRED;
return cred;
}
@ -930,6 +936,12 @@ _PUBLIC_ void cli_credentials_set_conf(struct cli_credentials *cred,
cred->signing_state = lpcfg_client_signing(lp_ctx);
cred->signing_state_obtained = CRED_SMB_CONF;
}
if (cred->ipc_signing_state_obtained <= CRED_SMB_CONF) {
/* Will be set to required for invalid smb.conf values */
cred->ipc_signing_state = lpcfg_client_ipc_signing(lp_ctx);
cred->ipc_signing_state_obtained = CRED_SMB_CONF;
}
}
/**
@ -1350,6 +1362,45 @@ cli_credentials_get_smb_signing(struct cli_credentials *creds)
return creds->signing_state;
}
/**
* @brief Set the SMB IPC signing state to request for a SMB connection.
*
* @param[in] creds The credentials structure to update.
*
* @param[in] signing_state The signing state to set.
*
* @param obtained This way the described signing state was specified.
*
* @return true if we could set the signing state, false otherwise.
*/
_PUBLIC_ bool
cli_credentials_set_smb_ipc_signing(struct cli_credentials *creds,
enum smb_signing_setting ipc_signing_state,
enum credentials_obtained obtained)
{
if (obtained >= creds->ipc_signing_state_obtained) {
creds->ipc_signing_state_obtained = obtained;
creds->ipc_signing_state = ipc_signing_state;
return true;
}
return false;
}
/**
* @brief Obtain the SMB IPC signing state from a credentials structure.
*
* @param[in] creds The credential structure to obtain the SMB IPC signing
* state from.
*
* @return The SMB singing state.
*/
_PUBLIC_ enum smb_signing_setting
cli_credentials_get_smb_ipc_signing(struct cli_credentials *creds)
{
return creds->ipc_signing_state;
}
/**
* Encrypt a data blob using the session key and the negotiated encryption
* algorithm

6
auth/credentials/credentials.h
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@ -297,6 +297,12 @@ bool cli_credentials_set_smb_signing(struct cli_credentials *cred,
enum smb_signing_setting
cli_credentials_get_smb_signing(struct cli_credentials *cred);
bool cli_credentials_set_smb_ipc_signing(struct cli_credentials *cred,
enum smb_signing_setting ipc_signing_state,
enum credentials_obtained obtained);
enum smb_signing_setting
cli_credentials_get_smb_ipc_signing(struct cli_credentials *cred);
/**
* Return attached NETLOGON credentials
*/

3
auth/credentials/credentials_internal.h
View File

@ -38,6 +38,7 @@ struct cli_credentials {
enum credentials_obtained keytab_obtained;
enum credentials_obtained server_gss_creds_obtained;
enum credentials_obtained signing_state_obtained;
enum credentials_obtained ipc_signing_state_obtained;
/* Threshold values (essentially a MAX() over a number of the
* above) for the ccache and GSS credentials, to ensure we
@ -121,6 +122,8 @@ struct cli_credentials {
bool password_will_be_nt_hash;
enum smb_signing_setting signing_state;
enum smb_signing_setting ipc_signing_state;
};
#endif /* __CREDENTIALS_INTERNAL_H__ */