* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 2012 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 2012 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
struct kerberos5data;
#endif
-/* Authentication mechanism values */
-#define SASL_AUTH_NONE 0
-#define SASL_AUTH_ANY ~0U
-
/* Authentication mechanism flags */
#define SASL_MECH_LOGIN (1 << 0)
#define SASL_MECH_PLAIN (1 << 1)
#define SASL_MECH_NTLM (1 << 6)
#define SASL_MECH_XOAUTH2 (1 << 7)
+/* Authentication mechanism values */
+#define SASL_AUTH_NONE 0
+#define SASL_AUTH_ANY ~0U
+#define SASL_AUTH_DEFAULT (SASL_AUTH_ANY & \
+ ~(SASL_MECH_EXTERNAL | SASL_MECH_XOAUTH2))
+
/* Authentication mechanism strings */
#define SASL_MECH_STRING_LOGIN "LOGIN"
#define SASL_MECH_STRING_PLAIN "PLAIN"
#define SASL_MECH_STRING_NTLM "NTLM"
#define SASL_MECH_STRING_XOAUTH2 "XOAUTH2"
+#if !defined(CURL_DISABLE_CRYPTO_AUTH)
+#define DIGEST_MAX_VALUE_LENGTH 256
+#define DIGEST_MAX_CONTENT_LENGTH 1024
+#endif
+
enum {
CURLDIGESTALGO_MD5,
CURLDIGESTALGO_MD5SESS
};
+/* SASL machine states */
+typedef enum {
+ SASL_STOP,
+ SASL_PLAIN,
+ SASL_LOGIN,
+ SASL_LOGIN_PASSWD,
+ SASL_EXTERNAL,
+ SASL_CRAMMD5,
+ SASL_DIGESTMD5,
+ SASL_DIGESTMD5_RESP,
+ SASL_NTLM,
+ SASL_NTLM_TYPE2MSG,
+ SASL_GSSAPI,
+ SASL_GSSAPI_TOKEN,
+ SASL_GSSAPI_NO_DATA,
+ SASL_XOAUTH2,
+ SASL_CANCEL,
+ SASL_FINAL
+} saslstate;
+
+/* Progress indicator */
+typedef enum {
+ SASL_IDLE,
+ SASL_INPROGRESS,
+ SASL_DONE
+} saslprogress;
+
+/* Protocol dependent SASL parameters */
+struct SASLproto {
+ const char *service; /* The service name */
+ int contcode; /* Code to receive when continuation is expected */
+ int finalcode; /* Code to receive upon authentication success */
+ size_t maxirlen; /* Maximum initial response length */
+ CURLcode (*sendauth)(struct connectdata *conn,
+ const char *mech, const char *ir);
+ /* Send authentication command */
+ CURLcode (*sendcont)(struct connectdata *conn, const char *contauth);
+ /* Send authentication continuation */
+ void (*getmessage)(char *buffer, char **outptr);
+ /* Get SASL response message */
+};
+
+/* Per-connection parameters */
+struct SASL {
+ const struct SASLproto *params; /* Protocol dependent parameters */
+ saslstate state; /* Current machine state */
+ unsigned int authmechs; /* Accepted authentication mechanisms */
+ unsigned int prefmech; /* Preferred authentication mechanism */
+ unsigned int authused; /* Auth mechanism used for the connection */
+ bool resetprefs; /* For URL auth option parsing. */
+ bool mutual_auth; /* Mutual authentication enabled (GSSAPI only) */
+ bool force_ir; /* Protocol always supports initial response */
+};
+
/* This is used to test whether the line starts with the given mechanism */
#define sasl_mech_equal(line, wordlen, mech) \
(wordlen == (sizeof(mech) - 1) / sizeof(char) && \
TCHAR *Curl_sasl_build_spn(const char *service, const char *instance);
#endif
-/* This is used to generate a base64 encoded PLAIN authentication message */
-CURLcode Curl_sasl_create_plain_message(struct SessionHandle *data,
- const char *userp,
- const char *passwdp,
- char **outptr, size_t *outlen);
+/* This is used to extract the realm from a challenge message */
+int Curl_sasl_digest_get_pair(const char *str, char *value, char *content,
+ const char **endptr);
-/* This is used to generate a base64 encoded LOGIN authentication message
- containing either the user name or password details */
-CURLcode Curl_sasl_create_login_message(struct SessionHandle *data,
- const char *valuep, char **outptr,
- size_t *outlen);
+#if defined(HAVE_GSSAPI)
+char *Curl_sasl_build_gssapi_spn(const char *service, const char *host);
+#endif
#ifndef CURL_DISABLE_CRYPTO_AUTH
-/* This is used to decode a base64 encoded CRAM-MD5 challange message */
-CURLcode Curl_sasl_decode_cram_md5_message(const char *chlg64, char **outptr,
- size_t *outlen);
-
-/* This is used to generate a base64 encoded CRAM-MD5 response message */
-CURLcode Curl_sasl_create_cram_md5_message(struct SessionHandle *data,
- const char *chlg,
- const char *user,
- const char *passwdp,
- char **outptr, size_t *outlen);
/* This is used to generate a base64 encoded DIGEST-MD5 response message */
CURLcode Curl_sasl_create_digest_md5_message(struct SessionHandle *data,
void Curl_sasl_gssapi_cleanup(struct kerberos5data *krb5);
#endif /* USE_KERBEROS5 */
-/* This is used to generate a base64 encoded XOAUTH2 authentication message
- containing the user name and bearer token */
-CURLcode Curl_sasl_create_xoauth2_message(struct SessionHandle *data,
- const char *user,
- const char *bearer,
- char **outptr, size_t *outlen);
-
/* This is used to cleanup any libraries or curl modules used by the sasl
functions */
void Curl_sasl_cleanup(struct connectdata *conn, unsigned int authused);
+/* Convert a mechanism name to a token */
+unsigned int Curl_sasl_decode_mech(const char *ptr,
+ size_t maxlen, size_t *len);
+
+/* Parse the URL login options */
+CURLcode Curl_sasl_parse_url_auth_option(struct SASL *sasl,
+ const char *value, size_t len);
+
+/* Initializes an SASL structure */
+void Curl_sasl_init(struct SASL *sasl, const struct SASLproto *params);
+
+/* Check if we have enough auth data and capabilities to authenticate */
+bool Curl_sasl_can_authenticate(struct SASL *sasl, struct connectdata *conn);
+
+/* Calculate the required login details for SASL authentication */
+CURLcode Curl_sasl_start(struct SASL *sasl, struct connectdata *conn,
+ bool force_ir, saslprogress *progress);
+
+/* Continue an SASL authentication */
+CURLcode Curl_sasl_continue(struct SASL *sasl, struct connectdata *conn,
+ int code, saslprogress *progress);
+
#endif /* HEADER_CURL_SASL_H */
projects / platform / upstream / curl.git / blobdiff